CN222124201U - Center distance detection tool - Google Patents
Center distance detection tool Download PDFInfo
- Publication number
- CN222124201U CN222124201U CN202420681575.3U CN202420681575U CN222124201U CN 222124201 U CN222124201 U CN 222124201U CN 202420681575 U CN202420681575 U CN 202420681575U CN 222124201 U CN222124201 U CN 222124201U
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- fixed block
- movable block
- cylindrical pins
- center distance
- block
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a center distance detection tool, which belongs to the technical field of detection and comprises a body, a fixed block fixedly arranged on the body and a movable block slidingly arranged on the body, wherein the movable block is tightly pressed with the fixed block through a spring, a dial indicator for displaying the extension displacement of the spring is arranged on one side of the body, two cylindrical pins are symmetrically arranged on the fixed block and the movable block, a pressing meter is arranged at one end, far away from the movable block, of the upper surface of the fixed block, the distance between the two cylindrical pins on the fixed block is identical to the distance between the two cylindrical pins on the movable block, the two cylindrical pins on the fixed block are vertically aligned, the two cylindrical pins on the movable block are vertically aligned, and the cylindrical pins on the fixed block are horizontally aligned with the cylindrical pins on the movable block. The utility model can accurately, objectively and conveniently measure the center distance reading.
Description
Technical Field
The utility model relates to the technical field of detection, in particular to a center distance detection tool.
Background
As shown in fig. 1, measuring the center distance between specific arcs is a difficult problem in the above, and a caliper is generally used for the detection, but the arc surface cannot be grasped at a specific position by using the caliper, and it is difficult to detect. Generally, a three-coordinate measuring instrument is used, and when three-coordinate detection is performed, the arc center of each arc can be automatically captured, and the distance between the arc centers can be automatically calculated.
However, it is difficult to measure the measurement using a common vernier caliper. The existing convenient measuring tool is a caliper, no place where the caliper is clamped, anything cannot be clamped at all, if the caliper needs to read, the straight edge must be clamped, and the circular arc-shaped part does not have the straight edge and has no way to grasp at all, so that the reading is omitted, the measured data belong to estimated data, and the measured data and the true value have certain access.
Disclosure of utility model
The utility model aims to provide a center distance gauge which can accurately, objectively and conveniently measure center distance readings.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The center distance detection tool comprises a body, a fixed block fixedly arranged on the body and a movable block slidably arranged on the body, wherein the movable block is tightly pressed with the fixed block through a spring, a dial indicator for displaying the extension displacement of the spring is arranged on one side of the body, and two cylindrical pins are symmetrically arranged on the fixed block and the movable block.
The technical scheme of the utility model is further improved in that the upper surface of the fixed block is provided with a pressure gauge at one end far away from the movable block.
The technical scheme of the utility model is further improved in that the distance between the two cylindrical pins on the fixed block is the same as the distance between the two cylindrical pins on the movable block, the two cylindrical pins on the fixed block are vertically aligned, the two cylindrical pins on the movable block are vertically aligned, and the cylindrical pins on the fixed block are horizontally aligned with the cylindrical pins on the movable block.
By adopting the technical scheme, the utility model has the following technical progress:
The utility model can accurately, objectively and conveniently measure the center distance reading by designing the center distance detection tool, and is suitable for various parts.
Drawings
FIG. 1 is a schematic diagram of a caliper measurement center distance in the background art;
FIG. 2 is a front view of a center distance sensing tool of the present utility model;
FIG. 3 is a top view of a center distance detection tool of the present utility model;
FIG. 4 is a schematic diagram of a measurement according to the present utility model;
FIG. 5 is a second measurement schematic diagram of the present utility model;
FIG. 6 is a measurement schematic diagram III of the present utility model;
Wherein, 1, a body, 2, a fixed block, 3 and a movable block, 4, a spring, 5, a dial indicator, 6, a pressure gauge, 7 and a cylindrical pin.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and examples:
In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate an orientation or positional relationship based on that shown in the drawings are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.
As shown in fig. 1, the center distance detection tool comprises a body 1, a fixed block 2 fixedly arranged on the body 1 and a movable block 3 slidingly arranged on the body 1, wherein the movable block 3 is tightly pressed with the fixed block 2 through a spring 4, a dial indicator 5 for displaying the extension displacement of the spring 4 is arranged on one side of the body 1, a pressing table 6 is arranged at one end, far away from the movable block 3, of the upper surface of the fixed block 2, two cylindrical pins 7 are symmetrically arranged on the fixed block 2 and the movable block 3, the distance between the two cylindrical pins 7 on the fixed block 2 is identical to the distance between the two cylindrical pins 7 on the movable block 3, the two cylindrical pins 7 on the fixed block 2 are vertically aligned, the two cylindrical pins 7 on the movable block 3 are vertically aligned, and the cylindrical pins 7 on the fixed block 2 are horizontally aligned with the cylindrical pins 7 on the movable block 3.
The detection method of the center distance detection tool comprises the following steps:
S1, before a workpiece is measured, when the movable block 3 and the fixed block 2 are closed, measuring that the center distance L 0,L0 between the movable block 3 and the cylindrical pin 7 on the fixed block 2 is the actual distance minus 1mm, and simultaneously adjusting a dial indicator to be a zero position and ensuring that the pressure gauge quantity is 1mm;
S2, pulling the movable block 3 by two hands and putting the movable block 3 into a workpiece, and after the two hands are loosened, returning the movable block 3 to the original position under the action of the springs 4, wherein the movable block 3 and the fixed block 2 cannot be closed because of the 1mm meter pressing amount, at the moment, the workpiece is lightly supported by the hands, and four cylindrical pins 7 are lightly contacted at the same time, and at the moment, the reading of the dial indicator 5 is the opening distance DeltaL 1 between the movable block 3 and the fixed block 2;
S3, taking down the workpiece, adjusting 180 degrees, namely turning the workpiece, repeating S2, and obtaining the opening distance DeltaL 2 of the movable block 3 and the fixed block 2, wherein the center distance L X of the workpiece can be obtained according to the following formula:
the calculation principle is as follows:
As shown in FIG. 4, O 1O3＝O2O4＝(D+d)/2,O3O4＝O1O2, O 3'O4＝O1O2 +δL in FIG. 5 if O 1 has an error ΔD 1, O 2, O in FIG. 6 if O 2 has an error ΔD2 3'O4＝O1O2-δL
Wherein,
Thus, the first and second substrates are bonded together,
It was concluded that when the diameters of the two circles are equal, the distance of O 3O4 is the center distance of the two large circles, and when the diameters of the two large circles are not equal, a certain error delta L or-delta L is generated, but the error can be eliminated through two measurements.
That is, by measuring the part in the forward and reverse directions, delta L generated by the difference of the outer diameter sizes of the two circles does not affect the measurement, and the measurement of the center distance of the part can be completed only by measuring in the forward and reverse directions.
Claims (3)
1. A center distance detection tool is characterized by comprising a body (1), a fixed block (2) fixedly arranged on the body (1) and a movable block (3) slidably arranged on the body (1), wherein the movable block (3) and the fixed block (2) are tightly pressed by a spring (4), a dial indicator (5) for displaying the extension displacement of the spring (4) is arranged on one side of the body (1), and two cylindrical pins (7) are symmetrically arranged on the fixed block (2) and the movable block (3).
2. The center distance detection tool according to claim 1, wherein a pressure gauge (6) is arranged at one end of the upper surface of the fixed block (2) far away from the movable block (3).
3. The center distance detection tool according to claim 1, wherein the distance between the two cylindrical pins (7) on the fixed block (2) is the same as the distance between the two cylindrical pins (7) on the movable block (3), the two cylindrical pins (7) on the fixed block (2) are vertically aligned, the two cylindrical pins (7) on the movable block (3) are vertically aligned, and the cylindrical pins (7) on the fixed block (2) are horizontally aligned with the cylindrical pins (7) on the movable block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420681575.3U CN222124201U (en) | 2024-04-03 | 2024-04-03 | Center distance detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420681575.3U CN222124201U (en) | 2024-04-03 | 2024-04-03 | Center distance detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222124201U true CN222124201U (en) | 2024-12-06 |
Family
ID=93686546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420681575.3U Active CN222124201U (en) | 2024-04-03 | 2024-04-03 | Center distance detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222124201U (en) |
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2024
- 2024-04-03 CN CN202420681575.3U patent/CN222124201U/en active Active
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