CN219736153U - Special frock of internal diameter percentage table school table - Google Patents
Special frock of internal diameter percentage table school table Download PDFInfo
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- CN219736153U CN219736153U CN202320992079.5U CN202320992079U CN219736153U CN 219736153 U CN219736153 U CN 219736153U CN 202320992079 U CN202320992079 U CN 202320992079U CN 219736153 U CN219736153 U CN 219736153U
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- clamp
- dial indicator
- inner diameter
- micrometer
- fixed
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- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a special fixture for calibrating an inner diameter dial indicator, which comprises a movable clamp, wherein the movable clamp is arranged on a base fixed clamp in a sliding manner, and a clamping jaw for clamping a micrometer is formed between the movable clamp and the base fixed clamp; the eccentric wheel is abutted with the movable clamp and arranged on the bracket, and the eccentric wheel is used for pushing the movable clamp to clamp the micrometer; the bracket is fixed on the base fixing clamp. When the dial indicator is calibrated, the special tool clamps the micrometer, only one end of the micrometer and one end of the dial indicator measuring rod are needed to be held by hand, and the swinging of the inner diameter dial indicator rod and the rotation of the dial plate can be realized at the same time, so that the dial indicator calibration operation is conveniently, rapidly and accurately completed.
Description
Technical Field
The utility model relates to a tool, in particular to a tool special for calibrating an inner diameter dial indicator.
Background
The inner diameter dial indicator is a common measuring tool for measuring the size of an inner hole in machining, and the specifications of the inner diameter dial indicator are different according to the size of the aperture, but the working principle and the reading mode are the same; as shown in figure 2, the inner diameter dial indicator comprises dial indicator dial plates, a gauge rod, a measuring rod, a ball head and other components, when in use, the measuring rod is arranged on the gauge body, the total length of the measuring rod is 0.5-1 mm larger than the size of an inner hole to be measured (an outside micrometer) as a compression amount, and then the measuring rod is fixed by rotating a locking nut to keep the position unchanged; and finally, mounting the dial indicator on a meter rod, compressing the dial indicator by 1 millimeter, and tightly pressing the clamping head by using a fastening screw, wherein the clamping force is not excessively large so as not to clamp the measuring rod of the dial indicator. The purpose of compressing the dial indicator by 1 millimeter is to enable the dial indicator to have a certain initial force and play a role in prompting. And then the inner diameter dial indicator is put into the aperture to be measured, the dial indicator swings in the front-back direction of the measuring rod, the swinging position of the gauge needle is observed, and the minimum value is selected to be the actual size of the inner hole.
Before the inner bore size is measured by adopting the inner diameter dial indicator, the dial indicator is required to be calibrated in advance, and the inner diameter dial indicator is put into the micrometer with a fixed size for calibrating operation. Because the internal diameter of two measurement ends of micrometer is less about 6mm, the head of two measuring sticks of internal diameter percentage table is semicircle bulb structure, need hold the measuring stick bulb with one hand when correcting the table, the measurement post tip of correcting bulb and micrometer contacts all the time, the other end also needs to be with holding up, swing the table pole simultaneously, observe the instruction of pointer, when the pointer indicates minimum, rotate the dial plate, rotate the zero point position of dial plate to the minimum department of pointer.
The existing aperture measurement is basically between 30 and 450mm, for measuring the size within 150mm, the purposes of positioning and stabilizing the micrometer by using one hand to measure the ball heads of the measuring rods at the two ends of the dial indicator and the measuring column of the micrometer can be achieved, and the other hand is responsible for swinging the dial plate of the dial indicator rod and the rotating dial indicator, so that the zero position of the dial indicator is ensured to coincide with the pointer. When the length of the measuring dimension is greater than 150mm, one hand cannot ensure that the measuring rod bulbs at the two ends of the inner diameter dial indicator are arranged on the measuring end of the micrometer due to limited spans of the hands, and only one hand can control one end, so that the two ends of the measuring head of the measuring rod of the inner diameter dial indicator can be simultaneously arranged on the measuring end of the micrometer. Therefore, the swinging of the inner diameter dial indicator and the rotation of the dial plate cannot be realized at the same time, two hands are required to swing the measuring rod at the bottom of the dial indicator measuring rod, the rotation value of the pointer is watched, the minimum value is taken, the value of the difference between the minimum value and the zero point of the dial plate is watched, the inner diameter dial indicator is loosened after the record is finished, and the rotation is the value of the difference between the minimum value and the zero point.
In summary, when correcting the dial indicator with larger aperture and inner diameter, the dial indicator needs to be adjusted for multiple times, cannot be adjusted in place once, and has an adjustment error; meanwhile, the larger the aperture thousandth is, the heavier the weight is, and the meter calibration can be completed by two operations, so that the defects of low meter calibration efficiency, poor meter calibration precision, large personnel investment and the like exist.
Disclosure of Invention
In order to solve the defects of the technology, the utility model provides a special tool for calibrating an inner diameter dial indicator.
In order to solve the technical problems, the utility model adopts the following technical scheme: an inside diameter percentage table school table special fixture, it includes:
the movable clamp is arranged on the base fixed clamp in a sliding manner, and a clamping jaw used for clamping the micrometer is formed between the movable clamp and the base fixed clamp;
the eccentric wheel is abutted with the movable clamp and arranged on the bracket, and the eccentric wheel is used for pushing the movable clamp to clamp the micrometer; the bracket is fixed on the base fixing clamp.
Further, the base fixing pliers are formed with longitudinally distributed back plates, the movable pliers are parallel to the back plates, and the clamping jaws are located between the back plates and the movable pliers.
Further, concave sliding grooves are symmetrically formed in two sides of the clamp body of the base fixing clamp, and the sliding grooves are used for sliding of the movable clamp.
Further, an open slot is formed in the middle of the base fixing clamp, and the support is symmetrically fixed on two sides of the top opening of the open slot.
Further, the eccentric wheel is arranged on the bracket through the rotating shaft.
Further, an eccentric wheel handle is fixedly connected to one side of the eccentric wheel.
Further, the back plate side of base fixed pincers is fixed with the bracing piece, and the bracing piece is connected with fixed axle sleeve through the spring of sagging, and fixed axle sleeve is used for cup jointing internal diameter percentage table and micrometer.
Further, the fixed shaft sleeve is provided with a large-aperture end and a small-aperture end, the large-aperture end is matched with a measuring rod of the inner diameter dial indicator, and the small-aperture end is matched with a measuring column of the fixed end of the micrometer.
Further, a resisting boss is formed between the large aperture end and the small aperture end of the fixed shaft sleeve and used for resisting the measuring rod, and the fixed shaft sleeve is slid to expose the ball head of the measuring rod.
The utility model discloses a special fixture for an inner diameter dial indicator, which is designed for solving the problem that a micrometer adopted in the prior large-aperture inner diameter dial indicator calibration is large in specification, heavy in weight and large in size, and a measuring head at two ends cannot be fixed by one hand while a measuring rod is adjusted to find the minimum value.
Drawings
FIG. 1 is a schematic structural diagram of a tooling special for calibrating an inner diameter dial indicator.
Fig. 2 is a schematic diagram of the structure of the prior art inner diameter dial gauge and micrometer.
Fig. 3 is a schematic view of the working state of the present utility model.
In the figure: 1. a base fixing clamp; 1a, a backboard; 1b, a chute; 1c, an open slot; 2. a movable clamp; 3. an eccentric wheel; 4. a rotating shaft; 5. a bracket; 6. an eccentric wheel handle; 7. a support rod; 8. a spring; 9. fixing the shaft sleeve; 11. a dial; 12. a watch bar; 13. a measuring rod; 14. a micrometer movable end; 15. a micrometer fixed end; 16. a micrometer.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
Embodiment 1,
The embodiment discloses special frock of internal diameter percentage table school table, as shown in figure 1, it includes:
the movable clamp 2 is arranged on the base fixing clamp 1 in a sliding manner, concave sliding grooves 1b are symmetrically formed in two sides of the clamp body by the base fixing clamp 1, the sliding grooves 1b are rectangular grooves, the movable clamp 2 is provided with a protruding structure matched with the sliding grooves 1b, the sliding grooves 1b serve as sliding ways of the sliding clamp, and the movable clamp can slide in the sliding grooves 1b accurately.
The movable clamp 2 is of a flat plate structure, the base fixed clamp 1 of the clamping jaw body is provided with a back plate 1a which is longitudinally distributed, the movable clamp 2 is parallel to the back plate 1a, and therefore a clamping jaw for clamping a micrometer is formed between the movable clamp 2 and the base fixed clamp 1; the clamping mode of the flat tongs is adopted to realize the clamping of the micrometer, and the eccentric wheel structure is adopted to rapidly complete the clamping operation.
The eccentric wheel 3 is abutted with the movable clamp 2 and is arranged on the bracket 5; the base fixing pliers 1 are provided with open slots 1c along the middle position, the supports 5 are symmetrically fixed on two sides of the top end opening of the open slots 1c, the supports 5 are used for supporting eccentric wheels, the eccentric wheels 3 are arranged on the supports 5 through rotating shafts 4, the eccentric wheels can swing relative to the rotating shafts, damping performance is kept between the eccentric wheels and the rotating shafts, and damping effects can be achieved through the arrangement of gears and other structures. An eccentric wheel handle 6 which is convenient to operate is fixedly connected to one side of the eccentric wheel 3. The eccentric wheel 3 takes the rotating shaft as a rotating point, the eccentric wheel is rotated by the eccentric wheel handle 6, and the movable clamp 2 is pushed to move forwards by the eccentric wheel center end so as to achieve the purpose of clamping the micrometer.
For the special fixture for calibrating the inner diameter dial indicator disclosed by the embodiment, when the special fixture is used for calibrating the inner diameter dial indicator, the method for calibrating the inner diameter dial indicator comprises the following steps:
1) Firstly, the size of the micrometer is adjusted to the size of the bore diameter to be measured, and a micrometer fixed-length screw is locked to ensure the fixed size and position of the micrometer;
the special fixture for calibrating the inner diameter dial indicator of the embodiment is placed on the platform, and the eccentric wheel handle is pulled, so that the eccentric wheel is positioned at the near-center end to achieve the purposes of loosening the movable clamp and placing the micrometer into the clamping jaw.
2) Placing the micrometer in the middle position of the clamping jaw, pulling the eccentric wheel handle to enable the eccentric wheel to be at the position of the distal end, pushing the movable clamp to move towards the back plate of the fixed clamp so as to clamp the micrometer, fixing the micrometer on the flat-nose clamp, and keeping the position unchanged; and correcting the dial indicator by using a micrometer, as shown in fig. 3, wherein the working state diagram is a working state diagram during the meter correction.
Implementing two steps,
The embodiment discloses special frock of internal diameter percentage table school table, on the basis of the structure of the special frock of internal diameter percentage table school table that embodiment one disclosed, still as shown in fig. 1, be fixed with bracing piece 7 at the backplate 1a side of base fixed pincers 1, bracing piece 7 is connected with fixed axle sleeve 9 through the spring 8 of sagging, and fixed axle sleeve 9 is used for cup jointing internal diameter percentage table and micrometer.
The fixed shaft sleeve 9 is provided with a large-aperture end and a small-aperture end, the large-aperture end corresponds to the measuring rod 13 of the inner diameter dial indicator, and the small-aperture end corresponds to the measuring column of the micrometer fixed end 15; a resisting boss is formed between the large aperture end and the small aperture end and is used for resisting the measuring rod 13, and a ball head of the measuring rod 13 can be exposed when the shaft sleeve 9 is fixed in a sliding manner.
For the special fixture for calibrating the inner diameter dial indicator disclosed by the embodiment, when the special fixture is used for calibrating the inner diameter dial indicator, the method for calibrating the inner diameter dial indicator comprises the following steps:
1) Firstly, the size of the micrometer is adjusted to the size of the bore diameter to be measured, and a micrometer fixed-length screw is locked to ensure the fixed size and position of the micrometer;
the special fixture for calibrating the inner diameter dial indicator of the embodiment is placed on the platform, and the eccentric wheel handle is pulled, so that the eccentric wheel is positioned at the near-center end to achieve the purposes of loosening the movable clamp and placing the micrometer into the clamping jaw.
2) Placing the micrometer in the middle position of the clamping jaw, pulling the eccentric wheel handle to enable the eccentric wheel to be at the position of the distal end, pushing the movable clamp to move towards the back plate of the fixed clamp so as to clamp the micrometer, fixing the micrometer on the flat-nose clamp, and keeping the position unchanged;
3) As shown in fig. 2 and 3, the large-aperture end of the fixed shaft sleeve 9 is sleeved on the measuring rod 13 of the inner diameter dial indicator, and the ball head on the measuring rod 13 is pushed inwards to the bottom to be exposed; then the inside diameter dial indicator is put on the micrometer 16, one end of the measuring rod 13, which is exposed out of the ball head from the fixed shaft sleeve 9, is correspondingly put on the micrometer fixed end 15, the fixed shaft sleeve 9 is slid, and the small-aperture end of the fixed shaft sleeve 9 is sleeved on a measuring column of the micrometer fixed end 15;
at this time, the other end of the measuring rod 13 is held by one hand of an operator and is aligned with the movable end 14 of the micrometer; the other hand holds the meter rod 12 of the inner diameter dial indicator to swing back and forth, find out the minimum value and rotate the dial plate 1 to rotate the dial plate zero value to the minimum value of the meter hand to finish the correction of the inner diameter dial indicator.
Therefore, for the special fixture for the inner diameter dial indicator calibration disclosed by the embodiment, a flat tongs clamping mode is adopted and matched with the eccentric wheel, the fixed tongs and the movable tongs structure, so that the micrometer is rapidly clamped, the eccentric wheel is rotated, and the movable tongs are pushed to move forwards to achieve the aim of clamping when the eccentric wheel is at the position of the distal end. The ball head at one end of the inner diameter dial indicator measuring rod is fixedly sleeved with the corresponding fixed end of the micrometer in a sleeve manner, so that one hand is held at the other measuring end of the micrometer, and the swinging of the inner diameter dial indicator rod and the rotation of the dial plate can be realized simultaneously.
According to the embodiment, through the use of the special tool for calibrating the inner diameter dial indicator, the operation of matching by a plurality of people is omitted, the meter calibrating work can be completed, the meter calibrating efficiency is greatly improved, the meter calibrating accuracy is greatly improved, the labor intensity of operators is reduced, the meter calibrating operation is conveniently, quickly and accurately completed, and the meter calibrating work of the inner diameter dial indicator can be completed by one person.
The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (9)
1. The utility model provides a special frock of internal diameter percentage table school table which characterized in that: it comprises the following steps:
the movable clamp (2) is arranged on the base fixed clamp (1) in a sliding manner, and a clamping jaw used for clamping the micrometer is formed between the movable clamp (2) and the base fixed clamp (1);
the eccentric wheel (3), the said eccentric wheel (3) is abutted with movable clamp (2) and installed on support (5), the eccentric wheel (3) is used for pushing the movable clamp (2) to clamp the micrometer; the bracket (5) is fixed on the base fixing clamp (1).
2. The tooling special for calibrating an inner diameter dial indicator according to claim 1, wherein: the base fixed clamp (1) is provided with a back plate (1 a) which is longitudinally distributed, the movable clamp (2) is parallel to the back plate (1 a), and the clamping jaw is positioned between the back plate (1 a) and the movable clamp (2).
3. The tooling special for calibrating an inner diameter dial indicator according to claim 2, wherein: concave sliding grooves (1 b) are symmetrically formed in two sides of a clamp body of the base fixing clamp (1), and the sliding grooves (1 b) are used for sliding of the movable clamp (2).
4. The tooling special for calibrating an inner diameter dial indicator according to claim 3, wherein: the base fixing clamp (1) is provided with an open slot (1 c) along the middle position, and the brackets (5) are symmetrically fixed on two sides of the top end opening of the open slot (1 c).
5. The tooling special for calibrating the inner diameter dial indicators according to claim 4, wherein: the eccentric wheel (3) is arranged on the bracket (5) through the rotating shaft (4).
6. The tooling special for calibrating the inner diameter dial indicators according to claim 5, wherein: one side of the eccentric wheel (3) is fixedly connected with an eccentric wheel handle (6).
7. The tooling special for calibrating an inner diameter dial indicator according to claim 2 or 6, wherein: the base fixing clamp is characterized in that a supporting rod (7) is fixed on the side edge of a back plate (1 a) of the base fixing clamp (1), the supporting rod (7) is connected with a fixing shaft sleeve (9) through a sagged spring (8), and the fixing shaft sleeve (9) is used for sleeving an inner diameter dial indicator and a micrometer.
8. The tooling special for calibrating an inner diameter dial indicator according to claim 7, wherein: the fixed shaft sleeve (9) is provided with a large-aperture end and a small-aperture end, the large-aperture end is matched with a measuring rod (13) of the inner diameter dial indicator, and the small-aperture end is matched with a measuring column of the micrometer fixed end (15).
9. The tooling special for calibrating an inner diameter dial indicator according to claim 8, wherein: a resisting boss is formed between the large aperture end and the small aperture end of the fixed shaft sleeve (9) and is used for resisting the measuring rod (13), and the fixed shaft sleeve (9) is slid to expose the ball head of the measuring rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320992079.5U CN219736153U (en) | 2023-04-27 | 2023-04-27 | Special frock of internal diameter percentage table school table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320992079.5U CN219736153U (en) | 2023-04-27 | 2023-04-27 | Special frock of internal diameter percentage table school table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736153U true CN219736153U (en) | 2023-09-22 |
Family
ID=88054198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320992079.5U Active CN219736153U (en) | 2023-04-27 | 2023-04-27 | Special frock of internal diameter percentage table school table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736153U (en) |
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2023
- 2023-04-27 CN CN202320992079.5U patent/CN219736153U/en active Active
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