CN210374952U - Center hole taper detection device - Google Patents
Center hole taper detection device Download PDFInfo
- Publication number
- CN210374952U CN210374952U CN201921647090.8U CN201921647090U CN210374952U CN 210374952 U CN210374952 U CN 210374952U CN 201921647090 U CN201921647090 U CN 201921647090U CN 210374952 U CN210374952 U CN 210374952U
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- Prior art keywords
- dial
- central hole
- detection device
- conical surface
- ejector rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a central hole taper detection device, which comprises a dial (1); a mandril (2) and a slide rail (3) are arranged on the dial scale (1); a slip ring (4) is sleeved on the ejector rod (2); two sides of the slip ring (4) are hinged with the top end of the conical surface contact rod (6) through hinges (5); the bottom end of the conical surface contact rod (6) is connected with the sliding rail (3) in a sliding way; a spring (7) is arranged on the ejector rod (2) between the slip ring (4) and the dial (1). The utility model has the advantages of convenient use, real measured value, capability of measuring the taper of the central hole of various differences, quick reading and the like.
Description
Technical Field
The utility model relates to a centre bore tapering detection device belongs to product inspection technical field.
Background
When external grinding or similar machining needs to be carried out on the jacking of the two ends of the shaft, center holes used in the later stage of a product need to be machined at the two ends of the shaft, the center holes are reference holes, and the quality influence on the later-stage machining of the product is large. In the prior art, after the center hole is machined, the taper of the center hole is measured by visual inspection or indirectly by measuring the taper of a center drill. The prior art can not reflect the actual taper of the central hole, and the quality of the product processed in the later period is unstable. Therefore, the prior art has defects and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centre bore tapering detection device to measure the tapering actual value of centre bore through special centre bore tapering detection device and detection method, thereby ensure the product quality of later stage processing, solve the not enough of prior art existence simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a central hole taper detection device, which comprises a dial; the dial is provided with a mandril and a slide rail; a slip ring is sleeved on the ejector rod; two sides of the slip ring are hinged with the top end of the conical surface contact rod through hinges; the bottom end of the conical contact rod is connected with the slide rail in a sliding manner; and a spring is arranged on the ejector rod between the sliding ring and the dial.
In the device, the dial is in a circular plate shape, the center of the dial is provided with the ejector rod, the ejector rod is perpendicular to the dial surface, the surface of the dial, which is provided with the ejector rod, is provided with scales, the scales are in concentric circles, and the scales are marked with reading values.
In the device, the slide rail is parallel to the dial surface; the slide rail is a single rail or a double rail; and is arranged symmetrically with the center of the dial; and the bottom end of the conical surface contact rod is provided with a sliding groove corresponding to the sliding rail in shape.
In the device, the spring is a compression spring.
In the device, the dial is made of transparent materials.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages of convenient and quick use and accurate and real measurement value; adopt the utility model discloses can measure the centre bore tapering of various differences, but also have that the reading is fast, the data accuracy of measurement gained, to measuring personnel's technical merit advantage such as not high expectations.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic view of a state when a measurement value is read;
FIG. 3 is a block diagram of an apparatus for detecting taper of a central bore;
FIG. 4 is a schematic view of the connection structure of the tapered contact rod and the slip ring.
The labels in the figures are: 1-dial, 2-ejector rod, 3-slide rail, 4-slip ring, 5-hinge, 6-conical contact rod, 7-spring, 8-scale, 9-chute, 10-center hole, 11-center hole conical surface and straight hole combination part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model is formed by the following method for detecting the taper of the central hole and is used for the method, as shown in figure 1 and figure 2, the method adopts a central hole taper detection device to measure the actual value of the taper of the central hole by positioning the conical surface of the central hole, so as to ensure the quality of the post-processing product; during measurement, an ejector rod 2 of the central hole taper detection device is inserted into a central hole 10 with a conical surface and a straight hole of a product to be measured, external force F is applied to press the bottom surface of a dial 1 of the central hole taper detection device, after a joint 11 of the conical surface of the central hole and the straight hole is contacted with a conical surface contact rod 6, the external force F is continuously applied to press the bottom surface of the dial 1, the conical surface contact rod 6 drives a sliding ring 4 to downwards extrude a spring 7 along the ejector rod 2 under the action of the external force F, the conical surface contact rod 6 rotates outwards by taking a hinge point with the sliding ring 4 as a center, constant external force F is kept after the conical surface contact rod 6 is completely attached and positioned with the conical surface of the central hole, and the numerical value of the dial 1 corresponding. The conical surface contact rod 6 adopts a tile-shaped or round tubular structure, and the outer arc curvature of the conical surface contact rod 6 is larger than that of the conical surface of the central hole; it should be ensured that the conical contact rod 6 is in contact with the conical surface of the central hole by only one line to ensure the measurement accuracy. The outer diameter of the slip ring 4 is slightly smaller than the minimum inner diameter of the taper hole of the central hole 10; the contact point of the central hole conical surface and straight hole combination part 11 and the conical surface contact rod 6 is arranged on the upper part of the conical surface contact rod 6, so that the conical surface contact rod 6 can flexibly rotate outwards.
The device for detecting the taper of a center hole according to the present invention is constructed and used in the above method, and as shown in fig. 3 and 4, the device includes a dial 1; the dial 1 is provided with a mandril 2 and a slide rail 3; the ejector rod 2 is sleeved with a slip ring 4; two sides of the slip ring 4 are hinged with the top end of the conical surface contact rod 6 through a hinge 5; the bottom end of the conical surface contact rod 6 is connected with the slide rail 3 in a sliding way; a spring 7 is arranged on the mandril 2 between the sliding ring 4 and the dial 1. The dial 1 is in a circular plate shape, the center of the dial 1 is provided with the ejector rod 2, the ejector rod 2 is perpendicular to the dial surface of the dial 1, the surface, provided with the ejector rod 2, of the dial 1 is provided with scales 8, the scales 8 are in concentric circles, and reading values are marked on the scales. The slide rail 3 is parallel to the dial face 1; the slide rail 3 is a single rail or a double rail; and is arranged with the center of the dial 1 symmetrically; the bottom end of the conical contact rod 6 is provided with a sliding chute 9 corresponding to the shape of the sliding rail 3; the spring 7 is a pressure spring; the dial 1 is made of transparent materials (such as organic glass, transparent plastic and the like).
Examples
The device used in the present example is mainly composed of a dial 1, a slide rail 3, a top rod 2, a slip ring 4, a conical contact rod 6 and a spring 7, as shown in fig. 3 and 4. The concrete connection structure is as follows: the dial 1 is fixed at the bottom end of the ejector rod 2. The slip ring 4 is sleeved on the ejector rod 2, and the slip ring 4 can slide up and down along the ejector rod 2. Two opposite sides of the slip ring 4 are symmetrically hinged with conical surface contact rods 6 through hinges 5; the conical contact rod 6 can rotate relative to the sliding ring 4 by taking the hinge 5 as a fulcrum. The lower end of the conical contact rod 6 is provided with a sliding chute 9, and the sliding chute 9 is clamped on the sliding rail 3 and can slide along the sliding rail 3. The slide rails 3 are symmetrically fixed on the dial scales 1 at two sides of the mandril 2. A spring 7 is provided between the slip ring 4 and the scale 1. The spring 7 is sleeved on the ejector rod 2, and two ends of the spring 7 are respectively fixed with the sliding ring 4 and the sliding rail 3. Forming a central hole taper detection device. The embodiment adopts a central hole taper detection device to realize the measurement of the central hole taper.
During specific measurement, as shown in fig. 1, the ejector rod 2 of the central hole taper detection device is inserted into the central hole 10 of a product to be measured from bottom to top, an upward external force F is applied to press the bottom surface of the dial 1, after the joint 11 of the central hole conical surface and the straight hole is contacted with the conical surface contact rod 6, the external force F is continuously applied to press the bottom surface of the dial 1, the conical surface contact rod 6 drives the sliding ring 4 to downwards extrude the spring 7 along the ejector rod 2 under the action of the external force F, so that the conical surface contact rod 6 outwards rotates by taking a hinge point with the sliding ring 4 as a center, a constant external force F is kept after the outer side surface of the conical surface contact rod 6 is completely attached and positioned with the central hole conical surface, and the numerical value of the dial 1 corresponding to the lower.
The utility model relates to a rely on the location of centre bore conical surface, rely on the relative rotation between conical surface contact bar 6 and the sliding ring 4 to and the relative position between sliding ring 4 and the ejector pin 2 remove and with the centre bore conical surface after parallel completely, utilize triangle-shaped's the stable principle to measure the conical direct reading method of centre bore.
The utility model has the advantages of convenient use, real measured value, capability of measuring the taper of the central hole of various differences, quick reading and the like.
Claims (5)
1. A central hole taper detection device comprises a dial (1); the method is characterized in that: a mandril (2) and a slide rail (3) are arranged on the dial scale (1); a slip ring (4) is sleeved on the ejector rod (2); two sides of the slip ring (4) are hinged with the top end of the conical surface contact rod (6) through hinges (5); the bottom end of the conical surface contact rod (6) is connected with the sliding rail (3) in a sliding way; a spring (7) is arranged on the ejector rod (2) between the slip ring (4) and the dial (1).
2. The central hole taper detection device according to claim 1, wherein: the dial (1) is in a circular plate shape, the center of the dial (1) is provided with the ejector rod (2), the ejector rod (2) is perpendicular to the dial surface of the dial (1), the scale (8) is arranged on the surface, provided with the ejector rod (2), of the dial (1), the scale (8) is in a concentric circle shape, and the scale is marked with a numerical reading value.
3. The central hole taper detection device according to claim 1, wherein: the slide rail (3) is parallel to the dial surface of the dial (1); the sliding rail (3) is a single rail or a double rail; and is arranged in central symmetry with the dial (1); and a sliding groove (9) corresponding to the sliding rail (3) in shape is arranged at the bottom end of the conical contact rod (6).
4. The central hole taper detection device according to claim 1, wherein: the spring (7) is a pressure spring.
5. The central hole taper detection device according to claim 1, wherein: the dial (1) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647090.8U CN210374952U (en) | 2019-09-27 | 2019-09-27 | Center hole taper detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647090.8U CN210374952U (en) | 2019-09-27 | 2019-09-27 | Center hole taper detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210374952U true CN210374952U (en) | 2020-04-21 |
Family
ID=70255780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921647090.8U Active CN210374952U (en) | 2019-09-27 | 2019-09-27 | Center hole taper detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210374952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608656A (en) * | 2019-09-27 | 2019-12-24 | 贵州群建精密机械有限公司 | Method and device for detecting taper of central hole |
-
2019
- 2019-09-27 CN CN201921647090.8U patent/CN210374952U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608656A (en) * | 2019-09-27 | 2019-12-24 | 贵州群建精密机械有限公司 | Method and device for detecting taper of central hole |
| CN110608656B (en) * | 2019-09-27 | 2023-11-21 | 贵州群建精密机械有限公司 | Method and device for detecting taper of central hole |
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