CN201429399Y - Centre hole accurate measurement instrument - Google Patents
Centre hole accurate measurement instrument Download PDFInfo
- Publication number
- CN201429399Y CN201429399Y CN2009200357032U CN200920035703U CN201429399Y CN 201429399 Y CN201429399 Y CN 201429399Y CN 2009200357032 U CN2009200357032 U CN 2009200357032U CN 200920035703 U CN200920035703 U CN 200920035703U CN 201429399 Y CN201429399 Y CN 201429399Y
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- China
- Prior art keywords
- hole
- clamp body
- gauge
- gauge head
- shaft shoulder
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- Expired - Fee Related
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Abstract
The utility model relates to a centre hole accurate measurement instrument, which comprises a clamp body, a measuring block, a measuring head, a dialgage and a spring, wherein the clamp body is a cylinder with a through hole at the centre thereof, and is connected with the measuring block through a connecting piece; the measuring block is a cylinder with a through hole at the centre thereof; the measuring end and the contact terminal of the dialgage penetrate through the through hole of the clamp body, and prop against the measuring head of the penetrated measuring block; the measuring head isa cylinder one end of which is provided with a tip, and the other end of which is provided with a shaft shoulder, and the measuring head is positioned on the upper end surface of the measuring blockthrough the shaft shoulder; and the spring is arranged in the through hole of the clamp body, and is positioned among ladder surfaces. The utility model can accurately measure the hole depth of the shaft-like product with a centre hole, and particularly can measure the hole with larger hole depth, the measuring head which is directly contacted with workpieces to be measured can be replaced, and the contact terminal of the dialgage can be ensured not to be easily worn.
Description
Technical field
The utility model relates to a kind of measuring appliance, a kind of specifically center pit accurate measurement instrument.
Background technology
For the axis products that has center pit, it is in the process in hole and need to carry out the degree of depth in measuring center hole after machining, the instrument of measurement hole depth commonly used only has dial gauge at present, but dial gauge can only be measured the degree of depth of little displacement, for just unable the executing of the bigger axis products dial gauge of hole depth, therefore most of people adopt the mode of estimating to estimate hole depth with own experience, and this makes the working depth out of true very of center pit.Even adopting dial gauge measures, also often be used because of dial gauge, especially in the process of the processing of axis products center pit, use dial gauge to measure hole depth, there is tiny burr on the surface of center pit, can make the contact of dial gauge measuring junction be worn, going down for a long time to influence the degree of accuracy of dial gauge.
The utility model content
For addressing the above problem, the utility model provides a kind of center pit accurate measurement instrument, and this center pit accurate measurement instrument can accurately be measured the hole depth of the axis products that has center pit, especially can measure the bigger hole of hole depth, and the contact of dial gauge easy to wear not.
For realizing the purpose of this utility model, the utility model adopts following technical scheme:
A kind of center pit accurate measurement instrument, comprise dial gauge, dial gauge is made up of gauge outfit, measuring junction, contact, it is characterized in that: center pit accurate measurement instrument also comprises clamp body, surveys piece, gauge head, web member, fixture, spring, described clamp body is the cylinder that has axial concentric pylone, through hole is connected to form with one heart by first through hole and second through hole of different-diameter, and first through hole and the second through hole junction form one first cascaded surface; Described survey piece is to have axially the cylinder of third through-hole with one heart, and the diameter of third through-hole is less than the diameter of second through hole; Described gauge head is the cylinder that an end has the shaft shoulder, and gauge head places in second through hole and the third through-hole, and the shaft shoulder contacts with the upper surface of surveying piece, and the other end of gauge head stretches out the lower surface of surveying piece; Clamp body is connected by web member with the survey piece, and described spring places in second through hole, contacts with first cascaded surface and the shaft shoulder respectively; The measuring junction of described dial gauge and contact place in first through hole and second through hole, and the contact and the shaft shoulder contact, and between the measuring junction and first through hole fixture are set.
Described clamp body is a circular cylinder, and described survey piece is conical cylinder, and first through hole, second through hole, third through-hole are manhole.
The shaft shoulder of described gauge head and gauge head one end is a circular cylinder, and the shaft shoulder of gauge head is provided with second cascaded surface, and the other end of gauge head is a beveled tip.
Described web member is a bolt.
Described fixture is a clamping screw.
Spring is put into second through hole of clamp body, the measuring junction of dial gauge and contact penetrate first through hole and second through hole of clamp body, gauge head penetrates the third through-hole of surveying piece, clamp body with survey piece and radially link to each other after, the contact of dial gauge and an end shaft shoulder of gauge head are contacted, and fastening clamping screw is fixed dial gauge and clamp body, and a top end that stretches out the gauge head of surveying piece compresses with the workpiece for measurement contact, drive moving of dial gauge contact by moving up and down of gauge head, measure thereby gauge outfit is shown.
The utility model can accurately be measured the hole depth of the axis products that has center pit, especially can measure the bigger hole of hole depth, because of dial gauge does not directly contact with measured workpiece, so can not wear and tear, and can change with the direct contacted gauge head of measured workpiece, at center pit the utility model of the big small-bore of difference, hole depth to the accurate measurement instrument of different model should be arranged.
Description of drawings
Fig. 1 is the structural representation of the utility model in user mode.
Fig. 2 is the vertical view of clamp body.
Among the figure: the 1-clamp body, the 1-1-cascaded surface, 2-surveys piece, the 3-gauge head, 3-1-is top, the 3-2-shaft shoulder, 3-3-second cascaded surface, 4-gauge outfit, 4-1-measuring junction, 4-2-contact, 5-spring, 6-bolt, the 7-clamping screw, 8-workpiece, 9-1-first through hole, 9-2-second through hole, 9-3-third through-hole.
Embodiment
As shown in Figure 1 and Figure 2: a kind of center pit accurate measurement instrument, comprise clamp body 1, survey piece 2, gauge head 3, dial gauge, spring 5, clamp body 1 is a right cylinder, and surveying piece 3 is cone, and clamp body 1 contacts with survey piece 2 partly identical round external diameter; One end of gauge head 3 is shaft shoulder 3-2, and shaft shoulder 3-2 is provided with the second cascaded surface 3-3, and the other end is beveled tip 3-1, and the utility model adopts 3 bolts 6 that clamp body 1 is connected with survey piece 2.Spring 5 is put into the second through hole 9-2 of clamp body 1, the two ends of spring 5 contact with the second cascaded surface 3-3 on the first cascaded surface 1-1 and the shaft shoulder 3-2, the measuring junction 4-1 of dial gauge and contact 4-2 penetrate the first through hole 9-1 and the second through hole 9-2 of clamp body 1, gauge head 3 penetrates in the third through-hole 9-3 that surveys piece 2, the other end with top 3-1 of gauge head 3 stretches out third through-hole 9-3, clamp body 1 with survey piece 2 and radially link to each other after, the contact 4-2 of dial gauge and an end shaft shoulder 3-2 of gauge head 3 are contacted, fastening clamping screw 7 is fixed dial gauge and clamp body 1, after the top 3-1 that stretches out the gauge head 3 of surveying piece 2 compresses with workpiece for measurement 8 contacts, drive moving of dial gauge contact 4-2 by moving up and down of gauge head 3, measure thereby gauge outfit 4 is shown.
When the hole on the measuring workpieces 8, can hold clamp body 1, in the hole on the top 3-1 insertion workpiece 8 of gauge head 3, firmly press clamp body 1 downwards, withstand on the bottom, hole of the measured hole on the workpiece 8 until top 3-1, it is moved up at the bottom of the hole top 3-1 reacting force, this displacement feeds back to dial gauge by the contact 4-2 on the shaft shoulder 3-2 that withstands on gauge head 3, reading by dial gauge shows, and the size of this displacement can be measured the hole depth of workpiece 8.
For the center pit of different big small-bores and hole depth on the measured workpiece 8, the utility model can be equipped with different model and match with hole depth, promptly by changing gauge head 3, surveying piece 2, dial gauge.During replacing, only need unscrew lock(ing) bolt 7, unload bolt 6, remove dial gauge, separately clamp body 1 and survey piece 2 are changed the corresponding dial gauge of another set of and tested aperture hole depth again, are surveyed piece 2 and gauge head 3, screw bolt 6 and get final product.
The utility model can accurately be measured the hole depth of the axis products that has center pit, especially can measure the bigger hole of hole depth, because of dial gauge does not directly contact with measured workpiece, so can not wear and tear, and can change with the direct contacted gauge head of measured workpiece, at center pit the utility model of the big small-bore of difference, hole depth to the accurate measurement instrument of different model should be arranged.
Claims (5)
1. center pit accurate measurement instrument, comprise dial gauge, dial gauge is connected to form successively by gauge outfit (4), measuring junction (4-1), contact (4-2), it is characterized in that: also comprise clamp body (1), survey piece (2), gauge head (3), web member (6), fixture (7), spring (5), described clamp body (1) is for having the cylinder of axial concentric pylone, through hole is connected to form with one heart by first through hole (9-1) and second through hole (9-2) of different-diameter, and first through hole (9-1) and second through hole (9-2) junction form one first cascaded surface (1-1); Described survey piece (2) is for having axially the cylinder of third through-hole (9-3) with one heart, and the diameter of third through-hole (9-3) is less than the diameter of second through hole (9-2); Described gauge head (3) is the cylinder that an end has the shaft shoulder (3-2), and gauge head (3) places in second through hole (9-2) and the third through-hole (9-3), and the shaft shoulder (3-2) contacts with the upper surface of surveying piece (2), and the other end of gauge head (3) stretches out the end face of surveying piece (2); Clamp body (1) is connected by web member (6) with survey piece (2), and described spring (5) places in second through hole (9-2), contacts with first cascaded surface (1-1) and the shaft shoulder (3-2) respectively; Measuring junction of described dial gauge (4-1) and contact (4-2) place in first through hole (9-1) and second through hole (9-2), the contact (4-2) and the shaft shoulder (3-2) contact, and the measuring junction of dial gauge (4-1) interfixes by fixture (7) and clamp body (1).
2. center pit accurate measurement instrument according to claim 1 is characterized in that: described clamp body (1) is a circular cylinder, and described survey piece (2) is conical cylinder, and first through hole (9-1), second through hole (9-2), third through-hole (9-3) are manhole.
3. center pit accurate measurement instrument according to claim 1, it is characterized in that: the shaft shoulder (3-2) of described gauge head (3) and gauge head (3) one ends is a circular cylinder, the shaft shoulder (3-2) of gauge head (3) is provided with second cascaded surface (3-3), and the other end of gauge head (3) is beveled tip (3-1).
4. center pit accurate measurement instrument according to claim 1 is characterized in that: described web member (6) is a bolt.
5. center pit accurate measurement instrument according to claim 1 is characterized in that: described fixture (7) is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200357032U CN201429399Y (en) | 2009-03-17 | 2009-03-17 | Centre hole accurate measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200357032U CN201429399Y (en) | 2009-03-17 | 2009-03-17 | Centre hole accurate measurement instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429399Y true CN201429399Y (en) | 2010-03-24 |
Family
ID=42033138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200357032U Expired - Fee Related CN201429399Y (en) | 2009-03-17 | 2009-03-17 | Centre hole accurate measurement instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201429399Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975539A (en) * | 2010-09-02 | 2011-02-16 | 浙江华益机械有限公司 | Taper hole detector |
| CN102126037A (en) * | 2011-03-10 | 2011-07-20 | 天润曲轴股份有限公司 | Device for controlling depth of drilled center hole |
| CN102967236A (en) * | 2012-11-20 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Gauge for measuring distance from outer end surface of workpiece to bottom of inner hole |
| CN105937895A (en) * | 2015-03-04 | 2016-09-14 | 株式会社三丰 | Measuring apparatus and support mechanism of columnar work piece |
| CN106403771A (en) * | 2016-08-31 | 2017-02-15 | 中航西安飞行自动控制技术有限公司 | Shell work piece inner bore multi-step height detection tool |
-
2009
- 2009-03-17 CN CN2009200357032U patent/CN201429399Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975539A (en) * | 2010-09-02 | 2011-02-16 | 浙江华益机械有限公司 | Taper hole detector |
| CN102126037A (en) * | 2011-03-10 | 2011-07-20 | 天润曲轴股份有限公司 | Device for controlling depth of drilled center hole |
| CN102126037B (en) * | 2011-03-10 | 2012-09-05 | 天润曲轴股份有限公司 | Device for controlling depth of drilled center hole |
| CN102967236A (en) * | 2012-11-20 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Gauge for measuring distance from outer end surface of workpiece to bottom of inner hole |
| CN105937895A (en) * | 2015-03-04 | 2016-09-14 | 株式会社三丰 | Measuring apparatus and support mechanism of columnar work piece |
| CN105937895B (en) * | 2015-03-04 | 2020-04-24 | 株式会社三丰 | Measuring device and support mechanism for cylindrical workpieces |
| CN106403771A (en) * | 2016-08-31 | 2017-02-15 | 中航西安飞行自动控制技术有限公司 | Shell work piece inner bore multi-step height detection tool |
| CN106403771B (en) * | 2016-08-31 | 2019-05-21 | 中航西安飞行自动控制技术有限公司 | A kind of shell workpiece inner hole multi-step height detecting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20120317 |