CN218947483U - Clamp for flatness measurement - Google Patents
Clamp for flatness measurement Download PDFInfo
- Publication number
- CN218947483U CN218947483U CN202320236980.XU CN202320236980U CN218947483U CN 218947483 U CN218947483 U CN 218947483U CN 202320236980 U CN202320236980 U CN 202320236980U CN 218947483 U CN218947483 U CN 218947483U
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- frame
- dial indicator
- clamp
- flatness measurement
- slider
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- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a clamp for flatness measurement, which comprises a bottom frame, a middle frame and a movable slide block, wherein the middle frame is slidably arranged in the bottom frame, the middle frame can reciprocally slide along the X-axis direction, the movable slide block is slidably arranged in the middle frame, the movable slide block can reciprocally slide along the Y-axis direction, a through hole is formed in the movable slide block, and the upper end face of the movable slide block is a platform for installing a measuring instrument. The clamp can realize the movement of the dial indicator or the dial indicator in two degrees of freedom directions, the flatness of the surface of a product to be measured can be measured without moving the dial indicator clamp, the measurement result is accurate, the measurement efficiency is improved, and the operation is simple and easy to operate.
Description
Technical Field
The utility model relates to a clamp for flatness measurement, and belongs to the technical field of flatness detection devices.
Background
Because of machining errors, the surface of machined products must be rugged, many machined products have flatness requirements, especially for some products with sealing or assembly requirements on the assembly surface, which often require flatness measurements during production. At present, the flatness of a part can be measured by using a three-coordinate measuring instrument under laboratory conditions, the three-coordinate measuring machine can set and fix a measuring position by a program, the measuring accuracy is high, but the three-coordinate measuring machine has high requirements on quality of inspectors, the using method is completely mastered, the training cost is higher, the operation efficiency is low under the condition of batch detection, and a simple flatness detection device is usually used on a production line, as shown in fig. 11, and mainly comprises a dial indicator 5 and a dial indicator clamp, wherein the flatness detection method mainly comprises the following principles: a reference plane is determined through the supporting legs 7 of the dial indicator clamp, and the dial indicator is placed on a standard plane of the dial indicator clamp for zeroing; and after zeroing, placing the workpiece on a dial indicator on a product to be measured, wherein the reading of the dial indicator is the height of the central position relative to a reference plane, and continuously reading different points on the surface of the product to be measured by moving the dial indicator clamp, so that the height difference of the obtained position relative to the determined reference plane can be determined, and the flatness data of the surface of the part can be obtained.
However, the dial indicator clamp needs to be moved for many times in the detection process, and the reference plane determined by the dial indicator clamp and the contact point between the probe and the bottom plate of the dial indicator cannot be fixed, so that the test result of the method is easily affected by the placement position of the dial indicator clamp, the measurement data is inaccurate, and the dial indicator clamp needs to be moved for many times in the detection process, which is very inconvenient.
Disclosure of Invention
The utility model aims to provide a clamp for flatness measurement, so as to improve or solve the technical problem that the actual measurement value of a test method commonly used in the prior art is greatly influenced by the arrangement of a dial indicator clamp.
The technical scheme provided by the utility model is as follows: the utility model provides a fixture for flatness measurement, includes bottom frame, middle level frame and moves the slider, middle level frame slidable mounting is in the bottom frame, move slider slidable mounting in the middle level frame, be equipped with the through-hole on moving the slider, the up end of moving the slider is the platform that is used for installing the measuring apparatu.
Further, the measuring instrument is arranged on the movable sliding block, and a detection rod of the measuring instrument penetrates through a through hole in the movable sliding block.
Further, the measuring instrument is a dial indicator or a dial indicator.
Further, the bottom frame is a hollow rectangular frame, first sliding rails are arranged on two side edges of the bottom frame, and the middle frame is installed between the two first sliding rails through pulleys.
Further, the middle layer frame is a hollow rectangular frame, second sliding rails are arranged on two sides of the middle layer frame, and the movable sliding blocks are arranged between the two second sliding rails through pulleys.
Further, a threaded hole is further formed in the side face of the movable sliding block, and a detection rod of the measuring instrument is inserted into the through hole and then fixed through a bolt.
Further, the lower plane where the edge of the bottom frame is located is parallel to the upper end face of the movable sliding block.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: the fixture for installing the dial indicator or the dial indicator is directly placed on the surface of a product to be measured, the sliding block is moved along the X-axis direction or the Y-axis direction, the concave-convex condition of the whole surface of the product to be measured can be detected through the detection rod, the numerical value detected by the detection rod is displayed on the dial plate of the dial indicator or the dial indicator, so that the difference value between the highest point and the lowest point of the surface of the product to be measured is determined, and the planeness of the surface of the product to be measured is obtained.
Drawings
FIG. 1 is a front view of a clamp of the present utility model;
FIG. 2 is a front view of the bottom frame of the present utility model;
FIG. 3 is a top view of FIG. 2 of the present utility model;
FIG. 4 is a left side view of FIG. 2 in accordance with the present utility model;
FIG. 5 is a front view of the movable slider of the present utility model;
FIG. 6 is a top view of FIG. 5 in accordance with the present utility model;
FIG. 7 is a left side view of FIG. 5 in accordance with the present utility model;
FIG. 8 is a front view of a middle layer frame of the present utility model;
FIG. 9 is a top view of FIG. 8 in accordance with the present utility model;
FIG. 10 is a left side view of FIG. 8 in accordance with the present utility model;
FIG. 11 is a schematic diagram of a prior art structure;
in the figure, 1, a bottom frame; 101. a first X-direction side; 102. a second X-direction side; 2. a middle layer frame; 201. a first Y-direction side; 202. a second Y-direction side; 3. a movable slide block; 301. a through hole; 4. a pulley; 5. dial or dial indicator; 6. a detection rod; 7. and supporting the feet.
Detailed Description
The principles and features of the present utility model are described below in connection with examples, which are set forth only to illustrate the present utility model and not to limit the scope of the utility model.
As shown in fig. 1 to 10, a fixture for flatness measurement comprises a bottom frame 1, a middle frame 2 and a movable slide block 3, wherein the middle frame 2 is slidably installed in the bottom frame 1, the movable slide block 3 is slidably installed in the middle frame 2, a through hole 301 is formed in the movable slide block 3, and the upper end face of the movable slide block 3 is a platform for installing a measuring instrument.
In this embodiment, the middle frame 2 can slide reciprocally in the X-axis direction, and the movable slider 3 can slide reciprocally in the Y-axis direction, and the X-axis direction and the Y-axis direction refer to fig. 1.
The fixture further comprises a measuring instrument, the measuring instrument is mounted on the movable slide block 3, and a detection rod 6 of the measuring instrument penetrates through a through hole 301 in the movable slide block 3. In this embodiment, the measuring instrument is a dial indicator or a dial indicator 5, and of course, the measuring instrument may be other meters with flatness measuring functions.
As shown in fig. 2 to 4, the bottom frame 1 is a hollow rectangular frame, the rectangular frame includes a first X-direction side 101 and a second X-direction side 102, the first X-direction side 101 and the second X-direction side 102 are oppositely disposed, first sliding rails are disposed on the first X-direction side 101 and the second X-direction side 102, two first sliding rails are disposed along an X-axis direction, and the middle frame 2 is mounted between the two first sliding rails through a first pulley 4.
As shown in fig. 8 to 10, the middle frame 2 is a hollow rectangular frame, the middle frame 2 includes a first Y-direction side 201 and a second Y-direction side 202, second slide rails are disposed on the first Y-direction side 201 and the second Y-direction side 202, the second slide rails are disposed along the Y-axis direction, and the movable slider 3 is mounted between the two second slide rails through a second pulley 4.
The side surface of the movable sliding block 3 is also provided with a threaded hole, and the detection rod 6 of the measuring instrument is inserted into the through hole 301 and then fixed by a bolt.
The lower plane where the edge of the bottom frame 1 is located is parallel to the upper end face of the movable slider 3. When the clamp is placed on the surface of a product to be measured, the lower plane where the edge of the bottom frame 1 is located is a reference plane, and the upper end surface of the movable sliding block 3 is a standard plane for installing a dial indicator or a dial indicator 5. And (3) zeroing the dial indicator or the dial indicator 5, and then placing the zeroed dial indicator or the dial indicator on the surface of the product to be measured for reading, namely, the height of the position of the surface of the product relative to the reference plane.
The bottom frame 1, the middle frame 2 and the movable sliding block 3 are precisely machined by numerical control technology, the accuracy of the size is ensured, and the dial indicator can be moved in the X-axis direction and the Y-axis direction by adopting the cooperation of the rollers and the rails.
The method for measuring the planeness of the surface of the product to be measured by using the fixture comprises the following steps:
(1) Firstly, a dial indicator is mounted on a movable slide block 3, a detection rod 6 of the dial indicator passes through a through hole 301 on the movable slide block 3, and the dial indicator is fixed through a bolt;
(2) Placing the clamp provided with the dial indicator on a bottom plate, wherein the bottom plate is a marble table surface with a level meter and a leveling device, leveling the marble table surface before placing, and starting up the dial indicator and zeroing;
(3) Placing a product to be tested on the bottom plate;
(4) And moving the movable slide block 3 along the X-axis direction or the Y-axis direction, and reading the numerical value of the dial indicator, wherein the obtained range of the numerical value is the flatness numerical value.
The fixture for installing the dial indicator or the dial indicator 5 is directly placed on the surface of a product to be measured, the sliding block 3 is moved along the X-axis direction or the Y-axis direction, the concave-convex condition of the whole surface of the product to be measured can be detected through the detection rod 6, the numerical value detected by the detection rod 6 is displayed on the dial plate of the dial indicator or the dial indicator 5, so that the difference value between the highest point and the lowest point of the surface of the product to be measured is determined, and the planeness of the surface of the product to be measured is obtained.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a fixture for flatness measurement, its characterized in that includes bottom frame (1), middle level frame (2) and moves slider (3), middle level frame (2) slidable mounting is in bottom frame (1), move slider (3) slidable mounting in middle level frame (2), be equipped with through-hole (301) on moving slider (3), the up end of moving slider (3) is the platform that is used for installing the measuring apparatu.
2. The fixture for flatness measurement according to claim 1, further comprising a gauge mounted on the movable slider (3), a detection rod (6) of the gauge passing through a through hole (301) on the movable slider (3).
3. The fixture for flatness measurement according to claim 2, characterized in that the measuring instrument is a dial indicator or dial gauge (5).
4. The fixture for flatness measurement according to claim 1, characterized in that the bottom frame (1) is a hollow rectangular frame, both sides of the bottom frame (1) are provided with first slide rails, and the middle frame (2) is mounted between the two first slide rails through pulleys (4).
5. The clamp for flatness measurement according to claim 1 or 4, characterized in that the middle layer frame (2) is a hollow rectangular frame, two sides of the middle layer frame (2) are provided with second slide rails, and the movable slide block (3) is mounted between the two second slide rails through a pulley (4).
6. The fixture for flatness measurement according to claim 2, characterized in that the movable slider (3) is further provided with a threaded hole on a side surface thereof, and the detection rod (6) of the gauge is inserted into the through hole (301) and then fixed by a bolt.
7. The clamp for flatness measurement according to claim 1, characterized in that the lower plane where the edge of the bottom frame (1) is located is parallel to the upper end face of the movable slider (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320236980.XU CN218947483U (en) | 2023-02-15 | 2023-02-15 | Clamp for flatness measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320236980.XU CN218947483U (en) | 2023-02-15 | 2023-02-15 | Clamp for flatness measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218947483U true CN218947483U (en) | 2023-05-02 |
Family
ID=86110031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320236980.XU Active CN218947483U (en) | 2023-02-15 | 2023-02-15 | Clamp for flatness measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218947483U (en) |
-
2023
- 2023-02-15 CN CN202320236980.XU patent/CN218947483U/en active Active
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