A high-precision detection device and detection method for measuring outer diameter

Abstract

The present invention relates to a high-precision detection device and detection method for measuring outer diameters, comprising a base plate, a dial indicator, and a positioning slider, wherein the dial indicator and the positioning slider are respectively arranged at both ends of the base plate, and a positioning post is provided on the positioning slider, which is arranged coaxially with and opposite to the probe of the dial indicator, and the dial indicator is fixed to one end of the base plate via a dial indicator fixing block. The beneficial effects of the present invention are: it can quickly and accurately measure the outer diameter of a flange or water-cooling jacket, has a wide range of applications, and is simple to operate; and the detection device is low in cost and light in weight, making it easy for operators to detect. It can be used not only for final dimensional inspection, but also for self-inspection and re-inspection in each production process, thereby improving production efficiency and pass rate.

Description

Technical Field

[0001] The present invention belongs to the field of detection equipment, and in particular relates to a high-precision detection device and a detection method for measuring outer diameter. Background Art

[0002] When processing large quantities of large-diameter flanges, the flange outer diameter size parameters need to be measured. Currently, vernier calipers are used for measurement. Similarly, when inspecting the outer diameter of a straight water-cooling jacket, vernier calipers are also needed for measurement. However, the existing vernier calipers have low precision, the proficiency of personnel in using them is not uniform, the vernier calipers are heavy, and there are few of them. This increases the difficulty of measurement and affects product production efficiency. Due to the large weight of the large-sized vernier calipers, it is difficult for operators to accurately grasp the inspection position during inspection. Different people have different habits, which will cause serious errors in the measured parameters. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a high-precision detection device and detection method for measuring outer diameter.

[0004] The technical solution adopted by the present invention is: a high-precision detection device for measuring outer diameter, including a base plate, a dial indicator and a positioning slider, the dial indicator and the positioning slider are respectively arranged at both ends of the base plate, a positioning column is provided on the positioning slider, the positioning column and the probe of the dial indicator are opposite and coaxially arranged, and the dial indicator is fixed to one end of the base plate through a dial indicator fixing block.

[0005] Preferably, the positioning slider is fixed to the other end of the base plate by bolts.

[0006] Preferably, the base plate is provided with positioning holes, and bolts pass through the positioning holes to fix the positioning slider on the base plate, and the positioning holes include a plurality of positioning holes arranged in a straight line.

[0007] Preferably, a slider boss is provided on the bottom of the positioning slider protruding downward, a threaded fixing hole is provided on the slider boss, a positioning groove is provided downward on the upper surface of the base plate, the shape of the positioning groove matches the slider boss, and a screw groove is also provided on the base plate, the screw groove is connected to the positioning groove, the screw groove matches the shape of the fixing bolt screw, and the direction of the screw groove is consistent with the direction of the threaded fixing hole.

[0008] Preferably, the threaded fixing hole is provided at the bottom of the slider boss, and the screw groove is provided at the bottom of the base plate.

[0009] Preferably, the threaded fixing hole is provided on the side of the slider boss, and the screw groove is provided on the side of the base plate.

[0010] Preferably, a countersunk groove is provided on the outside of the screw groove, the countersunk groove is communicated with the screw groove, and the countersunk groove matches the shape of the fixed screw countersunk.

[0011] Preferably, a correction bar is further included, which can be placed between the probe of the dial indicator and the positioning column.

[0012] Preferably, two or more positioning pins are provided on the base plate, and a straight line formed by the plurality of positioning pins is parallel to the axis from the measuring head of the dial indicator to the positioning column.

[0013] A method for measuring outer diameters of a high-precision detection device comprises placing one end of a device under test against a positioning post, pushing the device under test to rotate in a circle centered on the end contacting the positioning post, and causing the other end of the device under test to pass through a dial indicator. The maximum reading on the dial indicator is the size of the device under test.

[0014] Preferably, it is used to measure the diameter of a circular device or the length of the major axis or minor axis of an elliptical device.

[0015] The advantages and positive effects of the present invention are: it can quickly and accurately measure the outer diameter of the flange or water cooling jacket, has a wide range of applications, and is simple to operate; and the detection device is low in cost and light in weight, which is convenient for operators to detect. It can not only be used for final dimensional inspection, but also for self-inspection and re-inspection in each production process, thereby improving production efficiency and pass rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 3 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 4 This is a schematic structural diagram of a positioning slider according to an embodiment of the present invention;

[0020] Figure 5 1 is a schematic diagram of a cross-sectional structure of a substrate according to an embodiment of the present invention;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of a substrate according to an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Dial indicator 2. Dial indicator fixing block 3. Base plate

[0024] 31. Positioning hole 32. Positioning groove 33. Screw groove

[0025] 34, countersunk groove 35, positioning pin 4, positioning slider

[0026] 41, positioning column 42, slider boss 43, threaded fixing hole DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0028] like Figure 1-3 As shown, the present invention relates to a high-precision detection device for measuring outer diameter, comprising a substrate 3, a dial indicator 1 and a positioning slider 4. The substrate 3 is in the shape of an elongated strip. The dial indicator 1 and the positioning slider 4 are respectively arranged at both ends of the substrate 3. The positioning slider 4 is provided with a positioning column 41. The positioning column 41 is opposite to and coaxially arranged with the probe of the dial indicator 1, and is respectively against the two ends of the object to be measured during measurement; the dial indicator 1 is fixed to one end of the substrate 3 by a dial indicator fixing block 2, which can specifically be two fixing blocks fixed to one end of the substrate 3 by bolts, the two fixing blocks quickly clamp the outer side of the measuring rod of the dial indicator 1, and then the two fixing blocks are connected by bolts to fix the dial indicator 1; the probe is exposed for sensing length.

[0029] The positioning slider 4 is arranged at the other end of the base plate 3 and can be fixed or adjustable. Figure 4 As shown. If the inspection device is used to measure a fixed length or diameter of a part, the positioning slide 4 is bolted to the other end of the base plate 3, so that the distance from the positioning post 41 to the probe of the dial indicator 1 in its natural state is the target length. The device is then used to measure whether the manufactured part meets the standard. If the inspection device is used to measure multiple lengths or diameters of different models of a part, a positioning hole 31 can be set in the base plate 3, and the positioning slide 4 can be fixed at the position of the positioning hole 31. The distance from the positioning post 41 to the probe is the corresponding length or diameter. Bolts are passed through the positioning hole 31 to secure the positioning slide 4 to the base plate 3. The positioning holes 31 can be arranged in a straight line.

[0030] The positioning slider 4 can also be set to an adjustable setting. A slider boss 42 is provided at the bottom of the positioning slider 4, which can be a rectangular boss or a columnar boss. A threaded fixing hole 43 is provided on the slider boss 42 for fixing the slider boss 42. A positioning groove 32 is provided downward on the upper surface of the base plate 3. The shape of the positioning groove 32 matches the slider boss 42. The slider boss 42 can slide back and forth in the positioning groove 32, thereby adjusting the distance between the positioning slider 4 and the probe; Figure 5As shown, a screw groove 33 is further provided on the base plate 3, and the screw groove 33 is connected to the positioning groove 32. The bolt for fixing the positioning slider 4 can pass through the screw groove 33 and penetrate into the threaded fixing hole 43 on the slider boss 42. The screw groove 33 matches the shape of the fixing bolt screw; the direction of the screw groove 33 is consistent with the direction of the threaded fixing hole 43. The threaded fixing hole 43 is set at the bottom of the slider boss 42, and the screw groove 33 is set at the bottom of the base plate 3. When fixing, the bolt is fixed in the threaded fixing hole 43 by passing through the screw groove 33 at the bottom; for easy adjustment, the threaded fixing hole 43 can also be set on the side of the slider boss 42, as shown in FIG. Figure 6 As shown, the screw grooves 33 are arranged on the same side of the base plate 3. In order to prevent the protruding bolts from affecting the operation process, a countersunk groove 34 is provided outside the screw groove 33, and the countersunk groove 34 is connected to the screw groove 33, and the countersunk groove 34 matches the shape of the fixing screw countersunk.

[0031] When the positioning slider 4 is adjustable, it also includes a correction bar, which is pre-set to a length consistent with the size of the component to be measured. One end of the correction bar is placed against the probe end of the dial indicator 1 in a natural state, and the other end is adjusted by adjusting the positioning slider 4 so that the positioning column 41 is pressed against the other end of the correction bar, so that the distance between the positioning column 41 and the probe is the standard length of the component to be measured; in order to ensure that the positioning slider 4 is accurately positioned, two or more positioning pins 35 are provided on the substrate 3, and the straight line formed by the multiple positioning pins 35 is parallel to the axis from the probe of the dial indicator 1 to the positioning column 41. When placing the correction bar, it is placed against the positioning pin 35 horizontally to keep the correction bar parallel to the axis. In order to prevent the positioning pin 35 from affecting the measurement process, the positioning pin 35 is shorter and its height is lower than the position of the positioning column 41.

[0032] Select a suitable detection device, first adjust the position of the positioning slider 4 so that the position of the positioning column 41 to the probe meets the standard size. When measuring, place one end of the device to be tested on the positioning column 41, and rotate the other end in a circle until it touches the probe of the dial indicator 1. When the dial indicator 1 reaches the maximum value, it is the size of the device to be tested. It is particularly suitable for measuring the diameter of circular devices or the length of the major or minor axis of elliptical devices. For example, when the device to be tested is circular like a flange structure or a ring structure, it is not easy to accurately locate the outer diameter using a vernier caliper. However, using this device, the outer diameter size can be easily and accurately obtained. Even if multiple people measure, it will not be affected by experience or technique.

[0033] Example 1:

[0034] like Figure 1As shown, a high-precision detection device for measuring outer diameter includes a base plate 3, a dial indicator 1 and a positioning slider 4. The dial indicator 1 and the positioning slider 4 are respectively arranged at both ends of the base plate 3. The positioning slider 4 is provided with a positioning column 41. The positioning column 41 is opposite to and coaxially arranged with the probe of the dial indicator 1. The dial indicator 1 is fixed to one end of the base plate 3 through the dial indicator fixing block 2, and the positioning slider 4 is fixed to the other end of the base plate 3 by bolts.

[0035] During use, place one end of the device under test against the positioning post 41 and push the device under test to rotate in a circle with one end as the center. When the other end of the device under test passes through the dial indicator 1, push the probe and read the value from the dial indicator 1. The value added to the standard distance from the positioning post 41 to the probe is the length of the device under test. When detecting the manufacturing error of the device under test, the maximum reading on the dial indicator 1 can reflect the accuracy of the device under test.

[0036] Example 2:

[0037] like Figure 2 As shown, a high-precision detection device for measuring outer diameter includes a base plate 3, a dial indicator 1 and a positioning slider 4. The dial indicator 1 and the positioning slider 4 are respectively arranged at both ends of the base plate 3. A positioning column 41 is provided on the positioning slider 4. The positioning column 41 is opposite to and coaxially arranged with the probe of the dial indicator 1. The dial indicator 1 is fixed to one end of the base plate 3 through the dial indicator fixing block 2. A positioning hole 31 is provided on the base plate 3. Bolts pass through the positioning hole 31 to fix the positioning slider 4 on the base plate 3. The positioning holes 31 include multiple positioning holes arranged in a straight line, which are respectively suitable for different sizes of a type of parts.

[0038] When in use, first fix the positioning slider 4 in the corresponding positioning hole 31 with a bolt, and then measure the same as in Example 1.

[0039] Example 3:

[0040] like Figure 3 、 Figure 5 As shown, a high-precision detection device for measuring outer diameter includes a base plate 3, a dial indicator 1 and a positioning slider 4. The dial indicator 1 and the positioning slider 4 are respectively arranged at both ends of the base plate 3. The positioning slider 4 is provided with a positioning column 41. The positioning column 41 is opposite to and coaxially arranged with the probe of the dial indicator 1. The dial indicator 1 is fixed to one end of the base plate 3 by a dial indicator fixing block 2.

[0041] A slider boss 42 is provided at the bottom of the positioning slider 4, which protrudes downward. A threaded fixing hole 43 is provided on the slider boss 42. The threaded fixing hole 43 is set at the bottom of the slider boss 42. A positioning groove 32 is provided downward on the upper surface of the base plate 3. The shape of the positioning groove 32 matches the slider boss 42. A screw groove 33 is also provided on the base plate 3. The screw groove 33 is set at the bottom of the base plate 3. The screw groove 33 is connected to the positioning groove 32. The screw groove 33 matches the shape of the fixing bolt screw; a countersunk groove 34 is provided on the outside of the screw groove 33. The countersunk groove 34 is connected to the screw groove 33. The countersunk groove 34 matches the shape of the fixing screw countersunk.

[0042] It also includes a correction bar, which can be placed between the probe of the dial indicator 1 and the positioning column 41. Two positioning pins 35 are provided on the base plate 3. The straight line formed by the two positioning pins 35 is parallel to the axis from the probe of the dial indicator 1 to the positioning column 41.

[0043] When using, first make a calibration strip of the same length as the measurement standard. Place one end of the strip against the probe, with the side of the strip against the two positioning pins 35. Slide the slider boss 42 in the positioning groove 32, so that the positioning column 41 rests against the other end of the strip. Insert the fixing bolt through the screw groove 33 and tighten it into the threaded fixing hole 43. After tightening, the fixing bolt's countersunk head fits into the countersunk groove 34. After determining the position of the positioning slider 4, place the edge of the flange to be measured against the positioning column 41, rotate the flange to be measured, touch the probe, and read the dial indicator 1 reading, which is the manufacturing error of the flange to be measured.

[0044] Example 4:

[0045] like Figure 3 、 Figure 6 As shown, a high-precision detection device for measuring outer diameter includes a base plate 3, a dial indicator 1 and a positioning slider 4. The dial indicator 1 and the positioning slider 4 are respectively arranged at both ends of the base plate 3. The positioning slider 4 is provided with a positioning column 41. The positioning column 41 is opposite to and coaxially arranged with the probe of the dial indicator 1. The dial indicator 1 is fixed to one end of the base plate 3 by a dial indicator fixing block 2.

[0046] A slider boss 42 protrudes downward from the bottom of the positioning slider 4, and a threaded fixing hole 43 is provided on the slider boss 42. The threaded fixing hole 43 is arranged on the side of the slider boss 42. A positioning groove 32 is provided downward on the upper surface of the base plate 3. The shape of the positioning groove 32 matches the slider boss 42. A screw groove 33 is also provided on the base plate 3. The screw groove 33 is arranged on the side of the base plate 3. The direction of the screw groove 33 is consistent with the direction of the threaded fixing hole 43. The screw groove 33 is connected to the positioning groove 32, and the screw groove 33 matches the shape of the fixing bolt screw.

[0047] It also includes a correction bar, which can be placed between the probe of the dial indicator 1 and the positioning column 41. Three positioning pins 35 are provided on the base plate 3. The straight line formed by the three positioning pins 35 is parallel to the axis from the probe of the dial indicator 1 to the positioning column 41.

[0048] The adjustment method and measurement method are the same as those in Example 3.

[0049] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for detecting a high-precision detection device for measuring outer diameter, characterized in that: A high-precision detection device for measuring the diameter of a circular device or the length of the major axis or minor axis of an elliptical device, and for measuring the outer diameter, comprises a substrate, a dial indicator and a positioning slider, wherein the dial indicator and the positioning slider are respectively arranged at both ends of the substrate, a positioning post is provided on the positioning slider, and the positioning post is opposite to and coaxially arranged with the probe of the dial indicator, and the dial indicator is fixed to one end of the substrate by a dial indicator fixing block; further comprising a correction bar, which can be placed between the probe of the dial indicator and the positioning post, and two or more positioning pins are provided on the substrate, and a straight line formed by the plurality of positioning pins is parallel to the axis from the probe of the dial indicator to the positioning post; Select a suitable testing device and first adjust the position of the positioning slider so that the position from the positioning post to the probe meets the standard size. When measuring, place one end of the device under test against the positioning post and rotate the other end in a circle until it touches the dial indicator probe. When the dial indicator reaches the maximum value, it is the size of the device under test.

2. The detection method of the high-precision detection device for measuring outer diameter according to claim 1, characterized in that: The positioning slider is fixedly arranged at the other end of the base plate by means of bolts.

3. The detection method of the high-precision detection device for measuring outer diameter according to claim 1, characterized in that: The base plate is provided with positioning holes, and bolts pass through the positioning holes to fix the positioning slider on the base plate. The positioning holes include a plurality of holes arranged in a straight line.

4. The detection method of the high-precision detection device for measuring outer diameter according to claim 1, characterized in that: The bottom of the positioning slider is provided with a slider boss protruding downward, and a threaded fixing hole is provided on the slider boss. A positioning groove is provided downward on the upper surface of the base plate, and the shape of the positioning groove matches the slider boss. A screw groove is also provided on the base plate, and the screw groove is connected to the positioning groove. The screw groove matches the shape of the fixing bolt screw, and the direction of the screw groove is consistent with the direction of the threaded fixing hole.

5. The detection method of the high-precision detection device for measuring outer diameter according to claim 4, characterized in that: The threaded fixing hole is arranged at the bottom of the slider boss, and the screw groove is arranged at the bottom of the base plate.

6. The detection method of the high-precision detection device for measuring outer diameter according to claim 4, characterized in that: The threaded fixing hole is arranged on the side surface of the slider boss, and the screw groove is arranged on the side surface of the base plate.

7. The detection method of the high-precision detection device for measuring outer diameter according to claim 4, characterized in that: A countersunk groove is provided on the outside of the screw groove, the countersunk groove is communicated with the screw groove, and the countersunk groove matches the shape of the fixed screw countersunk.

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