CN210802324U - Depth gauge for center hole - Google Patents
Depth gauge for center hole Download PDFInfo
- Publication number
- CN210802324U CN210802324U CN201922096212.5U CN201922096212U CN210802324U CN 210802324 U CN210802324 U CN 210802324U CN 201922096212 U CN201922096212 U CN 201922096212U CN 210802324 U CN210802324 U CN 210802324U
- Authority
- CN
- China
- Prior art keywords
- measuring
- hole
- depth gauge
- dial indicator
- measuring rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000011017 operating method Methods 0.000 abstract 1
- 238000012031 short term test Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model belongs to the technical field of measurement and detection, in particular to a center hole depth gauge, which comprises a measuring part, a dial indicator and a mounting seat, wherein the dial indicator comprises a sleeve and a measuring rod; the mounting base is provided with a through hole, and the dial indicator is detachably mounted on the mounting base; the measuring piece is arranged on the measuring rod, and a measuring ball is arranged at the end part of the measuring piece; the measuring rod passes through the through hole and enables the measuring ball to extend out of the through hole. Whether the centre bore depth gauge of this scheme of use can the short-term test centre bore of processing meets the requirements, and operating procedure is simple, can effectively accelerate efficiency.
Description
Technical Field
The utility model belongs to the technical field of measure and detect, concretely relates to centre bore depth gauge.
Background
When shaft parts such as a transmission shaft and the like are machined, central holes are generally required to be formed in two ends of the shaft parts, the central holes are process holes used for determining the center of a workpiece, and the central holes have the following two main functions: firstly, the positioning reference is used as a workpiece during processing; and bearing the self weight and cutting force of the workpiece.
After the center hole of the shaft part is machined, the size and the depth of the center hole need to be measured, and whether the machined center hole meets the requirements or not is detected. The existing method for measuring the depth of the central hole comprises the following steps: firstly, the steel ball matched with the central hole is placed in the central hole, then the measuring scale is placed at the top of the steel ball, and the measured value is read. The depth of the center hole is measured by using the method, the measuring process is troublesome, the efficiency is low, and the steel ball for measuring is easy to roll off because of no fixation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a centre bore depth gauge to solve the problem that current measuring method measures centre bore inefficiency.
In order to achieve the above purpose, the utility model discloses a scheme does: the center hole depth gauge comprises a measuring part, a dial indicator and a mounting seat, wherein the dial indicator comprises a sleeve and a measuring rod; the mounting base is provided with a through hole, and the dial indicator is detachably mounted on the mounting base; the measuring piece is arranged on the measuring rod, and a measuring ball is arranged at the end part of the measuring piece; the measuring rod passes through the through hole and enables the measuring ball to extend out of the through hole.
The working principle and the beneficial effects of the scheme are as follows: when the center hole of a workpiece needs to be measured, the depth gauge is adjusted, a measuring ball of the depth gauge is opposite to the hole of the standard part, and the mounting seat is put down to be arranged on the surface of the standard part; and adjusting the position of the measuring ball to enable the measuring ball to be completely placed in the hole of the standard component, and then adjusting the dial indicator to enable the pointer of the dial indicator to point to 0. When a specific workpiece is measured, the measuring ball of the depth gauge is placed in a center hole of the workpiece to be measured, the rotation of the pointer of the dial indicator is observed, if the rotation of the pointer is within the tolerance range of the workpiece, the center hole of the workpiece to be measured meets the requirement, and if the rotation of the pointer exceeds the tolerance range, the center hole of the workpiece does not meet the requirement.
Optionally, the measuring member is threaded onto the measuring rod. The measuring piece is installed on the measuring rod of the dial indicator in a threaded connection mode, the measuring piece can be detached at any time, and a new measuring piece can be replaced when the measuring ball on the measuring piece is seriously damaged. And the extension length of the measuring piece can be adjusted through threaded connection, so that the measuring ball is positioned at a required position.
Optionally, threaded holes distributed along the length direction of the measuring rod are formed in the measuring rod, and a screw rod in threaded connection with the threaded holes is arranged on the measuring piece.
Optionally, the lower part of the measuring rod is provided with a thread, and the measuring piece is provided with a thread groove matched with the thread.
Optionally, an expansion chuck is fixed to the measuring member, and the measuring rod is detachably mounted on the expansion chuck.
Optionally, the measuring member is integrally formed with the gauge rod.
Optionally, the two sides of the mounting seat are both provided with clamping grooves, and balancing weights are detachably mounted on the clamping grooves. Set up the balancing weight and can guarantee that the mount pad has enough big weight for keep flat the back with the mount pad, the effort in the percentage table can be overcome to the measuring ball and the through-hole one side is retracted, ensures that the centre bore depth gauge of this scheme can normally work.
Optionally, the mounting seat is provided with an inner support chuck communicated with the through hole, and the sleeve is detachably mounted on the inner support chuck. The dial indicator is installed on the installation seat in a mode of the inner supporting chuck, and the inner supporting chuck can clamp the measuring rod of the dial indicator tightly, so that the dial indicator is fixed on the installation seat.
Optionally, the inner support chuck is mounted on the mounting seat in a threaded manner.
Optionally, the mounting seat is provided with a threaded connection hole communicated with the through hole, and the sleeve is provided with a thread matched with the threaded connection hole. The sleeve of mount pad and percentage table is connected through threaded connection's mode, and the length that the measuring staff stretches out the through-hole can be adjusted through the mode of twisting, finally ensures that the measuring ball is located the position that needs.
Drawings
Fig. 1 is a front view of a center hole depth gauge according to an embodiment of the present invention;
fig. 2 is a front view of a dial indicator of a center hole depth gauge according to an embodiment of the present invention;
fig. 3 is a front view of a measuring member of a center hole depth gauge according to an embodiment of the present invention;
FIG. 4 is a front view of a second center hole depth gauge according to an embodiment of the present invention;
fig. 5 is a front view of the dial indicator of the three-center hole depth gauge of the embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the dial indicator comprises a dial indicator 10, a sleeve 11, a measuring rod 12, a mounting seat 20, an internal support chuck 21, a balancing weight 22, a measuring ball 30 and an expansion chuck 40.
Example one
This embodiment is substantially as shown in fig. 1: the center hole depth gauge comprises a mounting seat 20, a measuring part and a dial indicator 10, wherein the dial indicator 10 can be directly purchased from the market and comprises a sleeve 11 and a measuring rod 12. The left and right sides of mount pad 20 all has opened the draw-in groove, and detachable installs balancing weight 22 on the draw-in groove, specifically, balancing weight 22 block is on the draw-in groove. As shown in fig. 2, the measuring member is screwed on the measuring rod 12, and the connection mode can be adopted: threaded holes distributed along the length direction of the measuring rod 12 are formed in the end part of the measuring rod 12 of the dial indicator 10, and a screw capable of being in threaded connection with the threaded holes is welded on the measuring piece; this connection may also be used: the lower part of the measuring rod 12 is provided with a thread, and the measuring piece is provided with a thread groove matched with the thread. In this embodiment, the first connection method is adopted.
As shown in fig. 3, a measuring ball 30 is welded to the end of the measuring member, and the size of the measuring ball 30 is matched with the central hole of the workpiece. The mounting seat 20 is provided with a through hole, the mounting seat 20 is provided with an inner support chuck 21 capable of communicating with the through hole, the inner support chuck 21 can be welded on the mounting seat 20 or detachably connected on the mounting seat 20, and in this embodiment, the inner support chuck 21 is in threaded connection on the mounting seat 20. On the chuck 21 is propped in the detachable installation of percentage table 10, the graduated flask 12 of percentage table 10 passes the through-hole, measures the ball 30 and stretches out to the through-hole outward moreover, and specific connected mode is: the sleeve 11 of the dial indicator 10 is clamped on the inner support chuck 21, and the dial indicator 10 can be well fixed on the inner support chuck 21 under the tensioning effect of the inner support chuck 21.
When the center hole of a workpiece needs to be measured, the depth gauge is adjusted first. The measuring ball 30 of the depth gauge is opposite to the hole of the standard part, and the mounting seat 20 is put down, so that the mounting seat 20 is arranged on the surface of the standard part; the position of the measuring ball 30 is adjusted to make the measuring ball 30 completely placed in the hole of the standard component, and then the dial indicator 10 is adjusted to make the pointer of the dial indicator 10 point to 0. When a specific workpiece is measured, the measuring ball 30 of the depth gauge is placed in the central hole of the workpiece to be measured, the rotation amplitude of the pointer of the dial indicator 10 is observed, if the rotation of the pointer is within the tolerance range of the workpiece, the central hole of the workpiece to be measured meets the requirement, and if the rotation of the pointer exceeds the tolerance range, the central hole of the workpiece does not meet the requirement.
Example two
This embodiment is substantially as shown in fig. 4: the center hole depth gauge comprises a mounting seat 20, a measuring part and a dial indicator 10, wherein the dial indicator 10 can be directly purchased from the market and comprises a sleeve 11 and a measuring rod 12. The measuring part and the measuring rod 12 are integrally formed, and the measuring part is fixed at the lower end of the measuring rod 12 of the dial indicator 10. The end of the measuring part is welded with a measuring ball 30, and the size of the measuring ball 30 is matched with the central hole of the workpiece. The left and right sides of mount pad 20 all has opened the draw-in groove, and detachable installs balancing weight 22 on the draw-in groove, specifically, balancing weight 22 block is on the draw-in groove. The mounting base 20 is provided with a through hole and a threaded connection hole communicated with the through hole, and the sleeve 11 of the dial indicator 10 is provided with a thread matched with the threaded connection hole. The dial indicator 10 is fixed on the mounting base 20 in a threaded connection mode, the measuring rod 12 of the dial indicator 10 penetrates through the through hole, and the measuring ball 30 extends out of the through hole.
EXAMPLE III
This embodiment is substantially as shown in fig. 5: the center hole depth gauge comprises a mounting seat 20, a measuring part and a dial indicator 10, wherein the dial indicator 10 can be directly purchased from the market and comprises a sleeve 11 and a measuring rod 12. The upper end of the measuring piece is welded with an expansion chuck 40, the lower end of the measuring piece is welded with a measuring ball 30, and the size of the measuring ball 30 is matched with the central hole of the workpiece. The dipstick 12 of the dial indicator 10 is removably snap-fitted to the expansion cartridge 40. The left and right sides of mount pad 20 all has opened the draw-in groove, and detachable installs balancing weight 22 on the draw-in groove, specifically, balancing weight 22 block is on the draw-in groove. The mounting base 20 is provided with a through hole and a threaded connection hole communicated with the through hole, and the sleeve 11 of the dial indicator 10 is provided with a thread matched with the threaded connection hole. The dial indicator 10 is fixed on the mounting base 20 in a threaded connection mode, the measuring rod 12 of the dial indicator 10 penetrates through the through hole, and the measuring ball 30 extends out of the through hole.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.
Claims (10)
1. Centre bore depth gauge, its characterized in that: the dial indicator comprises a measuring part, a dial indicator and a mounting seat, wherein the dial indicator comprises a sleeve and a measuring rod; the mounting base is provided with a through hole, and the dial indicator is detachably mounted on the mounting base; the measuring piece is arranged on the measuring rod, and a measuring ball is arranged at the end part of the measuring piece; the measuring rod passes through the through hole and enables the measuring ball to extend out of the through hole.
2. The central bore depth gauge of claim 1, wherein: the measuring piece is in threaded connection with the measuring rod.
3. The central bore depth gauge of claim 2, wherein: threaded holes distributed along the length direction of the measuring rod are formed in the measuring rod, and a screw rod in threaded connection with the threaded holes is arranged on the measuring piece.
4. The central bore depth gauge of claim 2, wherein: the lower part of the measuring rod is provided with a thread, and the measuring piece is provided with a thread groove matched with the thread.
5. The central bore depth gauge of claim 1, wherein: an expansion chuck is fixed on the measuring piece, and the measuring rod is detachably arranged on the expansion chuck.
6. The central bore depth gauge of claim 1, wherein: the measuring part and the measuring rod are integrally formed.
7. The central bore depth gauge of claim 1, wherein: clamping grooves are formed in the two sides of the mounting seat, and balancing weights are detachably mounted on the clamping grooves.
8. The central bore depth gauge according to any of claims 1-7, wherein: the mounting seat is provided with an inner support chuck communicated with the through hole, and the sleeve is detachably mounted on the inner support chuck.
9. The central bore depth gauge of claim 8, wherein: the inner support chuck is installed on the installation seat in a threaded connection mode.
10. The central bore depth gauge according to any of claims 1-7, wherein: the mounting seat is provided with a threaded connecting hole communicated with the through hole, and the sleeve is provided with a thread matched with the threaded connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096212.5U CN210802324U (en) | 2019-11-28 | 2019-11-28 | Depth gauge for center hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096212.5U CN210802324U (en) | 2019-11-28 | 2019-11-28 | Depth gauge for center hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802324U true CN210802324U (en) | 2020-06-19 |
Family
ID=71248923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922096212.5U Expired - Fee Related CN210802324U (en) | 2019-11-28 | 2019-11-28 | Depth gauge for center hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210802324U (en) |
-
2019
- 2019-11-28 CN CN201922096212.5U patent/CN210802324U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102878911B (en) | Folium equivalent weight measuring device | |
| CN210802324U (en) | Depth gauge for center hole | |
| CN214223939U (en) | Auxiliary frame support frame machine adds punch combination detection instrument | |
| CN211234266U (en) | Measuring tool for measuring concentricity of large drill | |
| CN210664301U (en) | Portable long stud coaxiality measuring tool | |
| CN208621212U (en) | A kind of borehole perpendicularity measurement servicing unit | |
| CN210773865U (en) | Charpy impact specimen side expansion value measuring device | |
| CN201203394Y (en) | High precision detection scale for mechanical mounting | |
| CN213147649U (en) | Oil nozzle step surface height gauge | |
| CN115265327A (en) | Caliper type cone outer diameter detection device | |
| CN212843334U (en) | Automobile key part pipe inner diameter detection device | |
| CN220912206U (en) | Concentricity detection device for on-axis encoder hole | |
| CN111336891A (en) | Detection device for port detection tool of pipe beam product | |
| CN210512976U (en) | Multi-axis concentric installation tool | |
| CN219455017U (en) | Tool runout gauge | |
| CN213335928U (en) | Piston detects with synthesizing and examining test table | |
| CN221649423U (en) | Quick gauge for detecting circle center distance | |
| CN205079907U (en) | Detection apparatus for be used for power value measuring instrument | |
| CN221325348U (en) | Conical bearing inner assembly retainer clearance measuring table | |
| CN212378681U (en) | Motor frame axiality detection device | |
| CN208688351U (en) | A kind of calibration outside micrometer auxiliary device | |
| CN218296955U (en) | Crankshaft bearing hole radial run-out testing fixture | |
| CN211824142U (en) | Detection tool for detecting runout value of outer side surface of water pump impeller | |
| CN214923870U (en) | Clamp capable of accurately adjusting angle of measuring pin | |
| CN201421318Y (en) | Small hole depth detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 |