CN114018131A - Counter bore hole depth measuring device - Google Patents
Counter bore hole depth measuring device Download PDFInfo
- Publication number
- CN114018131A CN114018131A CN202111239979.4A CN202111239979A CN114018131A CN 114018131 A CN114018131 A CN 114018131A CN 202111239979 A CN202111239979 A CN 202111239979A CN 114018131 A CN114018131 A CN 114018131A
- Authority
- CN
- China
- Prior art keywords
- measuring
- counter bore
- base
- measuring device
- push 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a counter bore hole depth measuring device which comprises a base, a limiting component, a push rod and a measuring component, wherein the limiting component and the push rod for ejecting the limiting component are arranged in the base; the measuring component is sleeved on the push rod and connected with the base. According to the counter bore depth measuring device disclosed by the invention, the limit component in the base is ejected out through the push rod, one end of the base of the counter bore depth measuring and positioning device disclosed by the invention is limited at one side of a counter bore, and the measuring component at the other end can directly measure the depth of the counter bore; the counter bore depth measuring device disclosed by the invention has the advantages of simple structure, convenience in operation, high measuring accuracy and high detection efficiency, and can realize single-person quick, efficient and accurate measurement on various workpieces.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a counter bore depth measuring device.
Background
The counter bore is a stepped hole for completely sinking the head of the fastener into a part, and is common in the machining industry. However, the requirements for the depth of the counter bore are different according to different working conditions. The surfaces of the two ends are machined surfaces, under the condition that the wall thickness before machining is determined, the depth of a counter bore can be marked on a drawing, and the wall thickness after machining is guaranteed through measurement of a depth measuring scale. In another situation, one end is a machined surface, the other end is a blank surface, in the state, the wall thickness cannot be guaranteed by measuring the depth of the counter bore, the drawing can be directly marked with the wall thickness, and the wall thickness is measured on the end face of the other side through a depth measuring scale.
In the measuring process, a blocking plate needs to be placed on the bottom surface of the counter bore, the extending length of the depth measuring scale is limited, and the measuring accuracy is guaranteed. When the size of the measuring workpiece is small and the number of the counter bores to be measured is small, one person can quickly finish the measuring work; when the size of the measuring workpiece is large or the measuring workpiece is circular, and the number of the counter bores to be measured is large, one person needs to cooperate to place the blocking plate in the direction of the counter bores, the depth of the counter bores is measured on the other side by the other person, and the measuring efficiency is very low. Because two people cooperate and measure, can't guarantee whether closure plate and counter bore bottom surface cooperate completely, the accuracy of size can't guarantee too.
Disclosure of Invention
Based on this, it is necessary to provide a counter bore depth measuring device which is suitable for various workpieces, has high measuring efficiency and high accuracy, aiming at the technical problems of low measuring accuracy, low measuring efficiency and the like of the existing counter bore depth measuring scale.
In order to solve the problems, the invention adopts the following technical scheme:
the embodiment of the invention discloses a counter bore depth measuring device which comprises a base, a limiting component, a push rod and a measuring component, wherein the limiting component and the push rod for ejecting the limiting component are arranged in the base; the measuring component is sleeved on the push rod and connected with the base.
In one embodiment, the limiting assembly comprises a connecting shaft, a limiting block and first springs, one end of the connecting shaft is fixedly connected in the base, the connecting shaft is provided with a plurality of first springs along the circumference, and the other end of each first spring is connected with the limiting block; the base is provided with a guide groove matched with the limiting block; the push rod pushes against the limiting block, so that the limiting block pushes out of the base along the guide groove.
In one embodiment, an oblique angle is arranged at one end, close to the limiting assembly, of the push rod; the contact part of the limiting block and the push rod is provided with an oblique angle.
In one embodiment, the limiting assembly further comprises a first fixing piece, and the first fixing piece is arranged on one side, away from the base, of the limiting block.
In one embodiment, the measuring assembly comprises a first measuring part, a second measuring part and a scale rod, one end of the first measuring part is connected with the base, the other end of the first measuring part is connected with the second measuring part, and the scale rod is arranged on the second measuring part.
In one embodiment, the measuring assembly further includes a second fixing member disposed on one side of the scale rod.
In one embodiment, the counter bore hole depth measuring device disclosed by the invention further comprises a handle, wherein the handle is connected with one end, away from the base, of the measuring assembly; the handle is provided with a sliding block and a second spring, and the sliding block is connected to one side of the handle, which is far away from the measuring component, through the second spring; the handle is further provided with a first connecting rod, one end of the first connecting rod is connected with the sliding block, and the other end of the first connecting rod is connected with the push rod.
Further, a second connecting rod is further arranged on the handle, one end of the second connecting rod is connected with the sliding block, and the other end of the second connecting rod is connected with the measuring component.
In one embodiment, the counter bore depth measuring device further comprises a calibrating piece, a threaded hole is formed in one end, away from the base, of the measuring assembly, the calibrating piece is arranged on threads matched with the threaded hole, the calibrating piece is arranged in the threaded hole, and the calibrating piece and the first connecting rod are arranged in parallel.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the counter bore depth measuring device disclosed by the invention, the limit component in the base is ejected out through the push rod, one end of the base of the counter bore depth measuring device disclosed by the invention is limited at one side of a counter bore, and the measuring component at the other end can directly measure the depth of the counter bore; the counter bore depth measuring device disclosed by the invention has the advantages of simple structure, convenience in operation, high measuring accuracy and high detection efficiency, and can realize single-person quick, efficient and accurate measurement on various workpieces.
Drawings
FIG. 1 is an exploded view of a counterbore depth measuring device disclosed in an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a counterbore depth measuring device disclosed in the embodiment of the invention;
fig. 3 is a top view of a counterbore depth measuring device disclosed in the embodiment of the invention.
Description of reference numerals:
1-a second connecting rod, 2-a first connecting rod, 3-a calibrating piece, 4-a second measuring piece, 5-a limiting block, 6-a first spring, 7-a base, 8-a connecting shaft, 9-a first fixing piece, 10-a push rod, 11-a first measuring piece, 12-a second fixing piece, 13-a scale rod, 14-a sliding block and 15-a second spring.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, the embodiment of the invention discloses a counter bore depth measuring device, which comprises a base 7, a limiting assembly and a push rod 10, wherein a cavity is arranged in the base 7, and a guide groove is arranged on the wall of the cavity. One end of the limit component and one end of the push rod 10 are sequentially arranged in the cavity to push the push rod 10, and the limit component is ejected out of the base 7 through the guide groove. The counter bore hole depth measuring device disclosed by the embodiment of the invention further comprises a measuring component, and the measuring component is sleeved on the push rod 10 and connected with the base 7. Of course, the connection mode of the measuring assembly and the base 7 can be a threaded connection mode, a clamping connection mode and the like, and the embodiment of the invention does not specifically require the connection mode.
In the embodiment of the invention, the limiting assembly comprises a connecting shaft 8, limiting blocks 5 and first springs 6, one end of the connecting shaft 8 is fixedly connected to the bottom of the cavity of the base 7, the connecting shaft 8 is provided with a plurality of first springs 6 along the periphery, and the other end of each first spring 6 is connected with the limiting block 5; the number of the guide grooves on the base 7 is equal to that of the limiting blocks 5 and the guide grooves are matched with the limiting blocks; the side of the limiting block 5 departing from the first spring 6 is arranged in the guide groove. Pushing the push rod 10, wherein the push rod 10 pushes against the limiting block 5, so that the limiting block 5 is pushed out of the base 7 through the guide groove; when the pushing force applied on the push rod 10 is removed, the limit block 5 is retracted back into the base 7 under the pulling force of the first spring 6.
Further, the connecting shaft 8 is uniformly provided with four first springs 6 along the circumference, and the four first springs 6 are arranged on the same cross section of the connecting shaft 8.
Further, the push rod 10 is pushed, an oblique angle is arranged at the contact part of the limiting block 5 and the push rod 10, and an oblique angle is arranged at one end, close to the limiting assembly, of the push rod 10; the oblique angle on the push rod 10 is matched with the oblique angle on the limit block 5, so that the limit block 5 can be ejected out of the base conveniently.
Further, the limiting assembly further comprises a first fixing piece 9, and the first fixing piece 9 is arranged on one side, away from the base 7, of the limiting block 5.
In the embodiment of the invention, the measuring assembly comprises a first measuring part 11, a second measuring part 4 and a scale rod 13, one end of the first measuring part 11 is connected with the base 7, the other end of the first measuring part 11 is connected with the second measuring part 4, the second measuring part is provided with the scale rod 13, and specifically, the first measuring part 11 and the second measuring part 14 are both provided with cavities for accommodating the push rod 10.
Further, the first measuring part 11 is a group of measuring parts with different length specifications, and can be replaced according to different depths of counter bores; correspondingly, the putter 10 may also be of a telescopic construction or a set of putters of different length specifications.
Further, the graduated rod 13 is a vernier caliper type graduation mark.
Further, the measuring assembly further comprises a second fixing member 12, the second fixing member is arranged on one side of the graduated rod 13, and the graduated rod is fixed.
The counter bore hole depth measuring device disclosed by the embodiment of the invention further comprises a handle, wherein the handle is connected with one end of the second measuring part 4, which is far away from the base 7; the handle is provided with a sliding block 14 and a second spring 15, and the sliding block 14 is connected to one side of the handle, which is far away from the second measuring rod 4, through the second spring 15; the sliding block 14 can slide along the two sides of the handle towards the base under the action of thrust, the thrust is removed, and the sliding block 14 returns under the action of the tension of the second spring 15. The second spring 15 may be plural. The handle is also provided with a first connecting rod 2, one end of the first connecting rod 2 is connected with the sliding block 14, and the other end is connected with the push rod 10. The sliding block 14 is pushed to drive the push rod 10 to push the limiting component, and the limiting block 5 is pushed out of the base.
Furthermore, a second connecting rod 1 is arranged on the handle, one end of the second connecting rod 1 is connected with the sliding block 14, the other end of the second connecting rod 1 is connected with the measuring component, and particularly connected with the scale rod 13; the slide block 14 is pushed to drive the scale rod 14 to move towards one end of the base.
The counter bore hole depth measuring device disclosed by the embodiment of the invention further comprises a calibrating piece, a threaded hole is formed in one end, away from the base 7, of the measuring assembly, the calibrating piece 3 is provided with a thread matched with the threaded hole, the calibrating piece 3 is arranged in the threaded hole, and the calibrating piece 3 and the measuring assembly are arranged in parallel. The calibration part 3 is arranged parallel to the scale rod 13. The counter bore depth measuring device is subjected to size correction by rotating the calibration piece 13.
The embodiment of the invention discloses an application method of a counter bore depth measuring device, which specifically comprises the following steps:
s1, selecting a proper first measuring piece 11, and connecting a base provided with a limiting component with the first measuring piece; the second measuring part 4 connected with a handle is connected with the first measuring part 11, wherein the handle is connected with a push rod 10, one end of the push rod 10 penetrates through the first measuring part 10 and the second measuring part 11 to be arranged in the base 7, and the push rod 10 is coaxial with the connecting shaft 8 of the limiting assembly. A graduated rod 13 and a second fixing member 12 are installed.
S2, placing a length standard gauge block which is close to the depth of the counter bore but smaller than the depth of the counter bore between the limiting block 5 and the second fixing piece 12, pushing the push rod 10, moving the scale rod 13 under the driving of the sliding block 14, and when the scale rod reads the scale which is the same as the length of the standard gauge block, pushing the rotary calibration piece 3 against the sliding block 14 to calibrate the counter bore depth measuring device.
S4, removing the thrust applied to the slide block 14, and extending the counter bore depth measuring device into the counter bore until the base 7 passes through the counter bore; the sliding block 14 is pushed to drive the push rod 10 to eject out of the limiting block 5; at the same time, the scale bar 13 is moved by the slider 14. And moving the counter bore depth measuring device in a small range until the extending part of the limiting block 5 is matched with the wall of a workpiece on one side of the bottom of the counter bore, and the scale rod 13 is matched with the other side of the counter bore. And observing the scale moving distance of the scale rod 13, and reading the depth data of the counter bore.
S5, removing the pushing force applied to the sliding block 14, enabling the sliding block 14 to return under the action of the pulling force of the second spring 15, driving the push rod 10 to move towards the handle direction, enabling the limiting block 5 to retract the base 7 under the action of the pulling force of the first spring 6, and taking out the counter bore depth measuring device from the counter bore.
In an alternative embodiment of the invention, the measuring assembly comprises a measuring member and a graduated rod 13, the graduated rod 13 being arranged on the measuring member, the measuring member being provided with a cavity for accommodating the push rod 10. Extending the counter bore depth measuring device into the counter bore until the base 7 passes through the counter bore; the sliding block 14 is pushed to drive the push rod 10 to eject out of the limiting block 5; and moving the counter bore depth measuring device in a small range until the extending part of the limiting block 5 is matched with the wall of the workpiece on one side of the bottom of the counter bore. And observing the scale of the side, deviating from the base 7, of the counter bore on the scale rod 13, and reading the depth data of the counter bore. The embodiment is suitable for measuring the depth of the counter bore with low requirement on measurement precision.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A counter bore hole depth measuring device is characterized by comprising a base (7), a limiting component, a push rod (10) and a measuring component, wherein the limiting component and the push rod (10) which enables the limiting component to be ejected out are arranged in the base (7); the measuring component is sleeved on the push rod (10) and connected with the base (7).
2. The counter bore hole depth measuring device according to claim 1, wherein the limiting assembly comprises a connecting shaft (8), a limiting block (5) and first springs (6), one end of the connecting shaft (8) is fixedly connected in the base (7), the connecting shaft (8) is circumferentially provided with a plurality of first springs (6), and the other end of each first spring (6) is connected with the limiting block (5); the base (7) is provided with a guide groove matched with the limiting block (5); the push rod (10) pushes against the limiting block (5), so that the limiting block (5) pushes out the base (7) along the guide groove.
3. The counter bore hole depth measuring device according to claim 2, characterized in that an oblique angle is arranged at one end of the push rod (10) close to the limiting component; the contact part of the limiting block (5) and the push rod (10) is provided with an oblique angle.
4. The counter bore hole depth measuring device according to claim 2, characterized in that the limiting assembly further comprises a first fixing member (9), and the first fixing member (9) is arranged on a side of the limiting block (5) away from the base (7).
5. The counter bore hole depth measuring device according to claim 1, characterized in that the measuring assembly comprises a first measuring piece (11), a second measuring piece (4) and a scale rod (13), one end of the first measuring piece (11) is connected with the base (7), the other end of the first measuring piece (11) is connected with the second measuring piece (4), and the scale rod (13) is arranged on the second measuring piece (4).
6. The counter bore hole depth measuring device according to claim 5, wherein the measuring assembly further comprises a second fixing member (12) provided at a side of the scale rod (13).
7. The counter bore hole depth measuring device according to claim 1, further comprising a handle connected to an end of the measuring assembly facing away from the base (7); the handle is provided with a sliding block (14) and a second spring (15), and the sliding block (14) is connected to one side, away from the measuring component, of the handle through the second spring (15); the handle is further provided with a first connecting rod (2), one end of the first connecting rod (2) is connected with the sliding block (14), and the other end of the first connecting rod (2) is connected with the push rod (10).
8. The counter bore hole depth measuring device according to claim 7, characterized in that a second connecting rod (1) is further arranged on the handle, one end of the second connecting rod (1) is connected with the sliding block (14), and the other end of the second connecting rod (1) is connected with the measuring component.
9. The counter bore hole depth measuring device according to claim 1, characterized by further comprising a calibration member (3), wherein a threaded hole is formed in one end of the measuring assembly, which is away from the base (7), the calibration member (3) is provided with a thread matched with the threaded hole, the calibration member (3) is arranged in the threaded hole, and the calibration member (3) and the measuring assembly are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239979.4A CN114018131A (en) | 2021-10-27 | 2021-10-27 | Counter bore hole depth measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239979.4A CN114018131A (en) | 2021-10-27 | 2021-10-27 | Counter bore hole depth measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114018131A true CN114018131A (en) | 2022-02-08 |
Family
ID=80057524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111239979.4A Pending CN114018131A (en) | 2021-10-27 | 2021-10-27 | Counter bore hole depth measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114018131A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530158A (en) * | 1982-06-14 | 1985-07-23 | Etablissments J. M. Chauquet | Gauge for testing the depth of a hole |
| KR20160041326A (en) * | 2014-10-07 | 2016-04-18 | 두산중공업 주식회사 | Gauge for measuring depth and gauge capable of measuring depth and inside diameter |
| CN106500557A (en) * | 2015-09-05 | 2017-03-15 | 赵爱文 | A kind of longhole survey detection means |
| CN207472170U (en) * | 2017-11-20 | 2018-06-08 | 张改霞 | A kind of construction wall detector |
| CN207515692U (en) * | 2017-11-21 | 2018-06-19 | 重庆市力波机械制造有限公司 | A kind of counterbore depth check tool |
| CN208059765U (en) * | 2018-04-25 | 2018-11-06 | 滁州职业技术学院 | A kind of blast hole depth measurement device |
| CN109186417A (en) * | 2018-09-06 | 2019-01-11 | 安徽省建筑工程质量监督检测站 | A kind of multifunctional ruler and its measurement method for concrete carbonization depth measurement |
| KR101991890B1 (en) * | 2018-10-19 | 2019-06-21 | 주식회사 한국구조물안전연구원 | Height and transform measuring device of elastic support installed on bridge |
| CN110489926A (en) * | 2019-09-02 | 2019-11-22 | 北京交通大学 | A kind of Construction of Submarine Tunnel course control method for use and system based on stratum deformation |
| CN110916774A (en) * | 2019-12-20 | 2020-03-27 | 武汉圣惠康生物医药科技有限责任公司 | Sheath tearing and stripping depth regulator |
| CN111609783A (en) * | 2019-02-25 | 2020-09-01 | 天津市强大工贸有限公司 | Device and method for measuring aperture of mechanical part |
| CN111609782A (en) * | 2020-05-27 | 2020-09-01 | 共享装备股份有限公司 | Detection tool for monitoring critical dimension of casting and use method |
| CN112304678A (en) * | 2020-11-07 | 2021-02-02 | 张红宾 | Land ecosystem carbon cycle research sampling device |
| CN112945061A (en) * | 2021-03-30 | 2021-06-11 | 广东鸿特精密技术（台山）有限公司 | Bottom hole depth gauge with scales |
| CN214149029U (en) * | 2021-01-06 | 2021-09-07 | 长春富明航发零部件制造有限公司 | Deep groove caliper |
-
2021
- 2021-10-27 CN CN202111239979.4A patent/CN114018131A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530158A (en) * | 1982-06-14 | 1985-07-23 | Etablissments J. M. Chauquet | Gauge for testing the depth of a hole |
| KR20160041326A (en) * | 2014-10-07 | 2016-04-18 | 두산중공업 주식회사 | Gauge for measuring depth and gauge capable of measuring depth and inside diameter |
| CN106500557A (en) * | 2015-09-05 | 2017-03-15 | 赵爱文 | A kind of longhole survey detection means |
| CN207472170U (en) * | 2017-11-20 | 2018-06-08 | 张改霞 | A kind of construction wall detector |
| CN207515692U (en) * | 2017-11-21 | 2018-06-19 | 重庆市力波机械制造有限公司 | A kind of counterbore depth check tool |
| CN208059765U (en) * | 2018-04-25 | 2018-11-06 | 滁州职业技术学院 | A kind of blast hole depth measurement device |
| CN109186417A (en) * | 2018-09-06 | 2019-01-11 | 安徽省建筑工程质量监督检测站 | A kind of multifunctional ruler and its measurement method for concrete carbonization depth measurement |
| KR101991890B1 (en) * | 2018-10-19 | 2019-06-21 | 주식회사 한국구조물안전연구원 | Height and transform measuring device of elastic support installed on bridge |
| CN111609783A (en) * | 2019-02-25 | 2020-09-01 | 天津市强大工贸有限公司 | Device and method for measuring aperture of mechanical part |
| CN110489926A (en) * | 2019-09-02 | 2019-11-22 | 北京交通大学 | A kind of Construction of Submarine Tunnel course control method for use and system based on stratum deformation |
| CN110916774A (en) * | 2019-12-20 | 2020-03-27 | 武汉圣惠康生物医药科技有限责任公司 | Sheath tearing and stripping depth regulator |
| CN111609782A (en) * | 2020-05-27 | 2020-09-01 | 共享装备股份有限公司 | Detection tool for monitoring critical dimension of casting and use method |
| CN112304678A (en) * | 2020-11-07 | 2021-02-02 | 张红宾 | Land ecosystem carbon cycle research sampling device |
| CN214149029U (en) * | 2021-01-06 | 2021-09-07 | 长春富明航发零部件制造有限公司 | Deep groove caliper |
| CN112945061A (en) * | 2021-03-30 | 2021-06-11 | 广东鸿特精密技术（台山）有限公司 | Bottom hole depth gauge with scales |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4982505A (en) | Gauge for measuring both the depth and the diameter of a bore hole | |
| CN108225898B (en) | Rivet head fixing clamp and riveting strength detection method for riveting contact element of rivet head fixing clamp | |
| US11040425B2 (en) | On-machine inspection indicator setup block | |
| CN110030897B (en) | Measuring tool for automobile gap and section difference | |
| CN114018131A (en) | Counter bore hole depth measuring device | |
| CN105371722A (en) | Checking tool capable of measuring 0.7-dimension end surface teeth | |
| CN213748362U (en) | Calibration device suitable for assembly gap measurement system | |
| CN207600329U (en) | Lever indicator measuring device | |
| CN204286267U (en) | A kind of device detecting the aperture oral area chamfering of the product of numerically-controlled machine processing | |
| CN205580353U (en) | Dark measuring device of adjustable internal thread | |
| CN211085014U (en) | Measuring tool for hole pitch of process hole on top surface of cylinder cover | |
| CN114964124A (en) | Device and method for detecting symmetry degree of inner hole of small dovetail-shaped mortise | |
| CN210374940U (en) | Interval measuring device | |
| CN220170097U (en) | Micrometer for measuring depth of groove | |
| CN211042046U (en) | Stud interval detection device | |
| US2953855A (en) | Height gauges | |
| CN209783491U (en) | Hole center distance measuring device | |
| CN201266058Y (en) | Special measuring tool for single dovetail of 60 degree | |
| CN216620871U (en) | Turbine moving blade measuring tool | |
| US2578261A (en) | Internal thread gauge | |
| CN215524415U (en) | Checking device of depth gauge for granite measurement | |
| CN216205921U (en) | Calibration device of dovetail groove detection tool of glass mold | |
| CN216791070U (en) | V-shaped diameter deviation measuring gauge | |
| CN208398739U (en) | Measuring head for vernier caliper measurement deep trouth | |
| CN210833363U (en) | Measuring tool for detecting center distance of end face notch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |