CN213714268U - Device for quickly detecting inner hole of small steel ball seat - Google Patents
Device for quickly detecting inner hole of small steel ball seat Download PDFInfo
- Publication number
- CN213714268U CN213714268U CN202021848280.9U CN202021848280U CN213714268U CN 213714268 U CN213714268 U CN 213714268U CN 202021848280 U CN202021848280 U CN 202021848280U CN 213714268 U CN213714268 U CN 213714268U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- ball seat
- base
- hole
- inner hole
- 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.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to the field of machining, in particular to a device for quickly detecting an inner hole of a small steel ball seat, which comprises a guide positioning sleeve, a base and a positioning pin; the base is horizontally fixed on a detection platform of the detection device, a flat bottom hole is formed in the center of the upper end face of the base, two positioning pin holes are uniformly distributed in the bottom of the flat bottom hole in the circumferential direction, and the guide positioning sleeve is arranged in the flat bottom hole; the device comprises a base, and is characterized by further comprising a measuring head, wherein the measuring head is used for measuring the depth of an inner hole and the depth of a sealing surface of a small steel ball seat part to be detected, and is positioned right above the base and connected with a detection device. The device can realize the measurement of the depth of the inner hole of the small steel ball seat part and the depth dimension of the sealing surface and the inspection of the quality of the sealing surface, can realize reliable clamping positioning, accurate detection and quick switching, and ensures the stability and high efficiency of the detection process.
Description
Technical Field
The utility model relates to the field of machining, concretely relates to a device that is used for small steel ball seat hole short-term test.
Background
The micro steel ball seat part plays a key role in the precision assembly, and the processing precision of an inner hole and the surface quality of a sealing surface directly determine the motion stroke and the sealing performance of the precision assembly. Therefore, after the inner hole is machined, the surface quality of the sealing surface needs to be checked piece by piece, and the technical indexes to be detected comprise the depth of the inner hole and the depth of the sealing surface.
As shown in figure 10, the steel ball seat part is very tiny (the maximum excircle diameter is less than 3mm, the total length is less than 3mm, the diameter phi of the inner hole to be measured is 1.3), and the steel ball seat part is of a two-stage step-shaped structure, and the positionable excircle length is less than 2 mm. Therefore, the following problems exist in the actual detection process: when the depth of the inner hole and the depth of the sealing surface are measured, the part needs to be clamped by tweezers, the part is repeatedly adjusted on a detection platform, the measuring head is coaxial with the center of the inner hole, and the part is very easy to turn over when the measuring head enters the inner hole for measurement, so that the steps are repeated. Due to the limitation of the size of the inner hole, only a needle-shaped measuring head can be selected, the needle-shaped measuring head easily enters a small hole at the bottom of the inner hole to be measured when the depth of the inner hole is detected, the plane of the bottom of the inner hole to be measured is difficult to quickly find, the measurement is inaccurate, and an operator needs to adjust the position of the steel ball seat part for multiple times. When the depth of the sealing surface is detected, the small steel ball is needed to assist in measurement, the needle-shaped measuring head is difficult to quickly find the highest point position of the small steel ball, measurement errors are caused, and an operator needs to adjust the position of a steel ball seat part for multiple times; and fourthly, when the surface quality of the sealing surface is checked, the focal length of the microscope and the position of the steel ball seat part need to be adjusted repeatedly because the placing position of each part cannot be ensured to be consistent. Therefore, the detection process of the small steel ball seat is time-consuming and labor-consuming, the labor intensity is high, and the flow efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model designs a device for rapidly detecting the inner hole of the small steel ball seat according to the structural characteristics of the small steel ball seat part, has simple structure and convenient use, only needs to load the part to be detected into the device when detecting the inner hole depth and the sealing surface depth of the small steel ball seat part, does not need to repeatedly adjust the position and does not need to hold tweezers to fix the part; meanwhile, when the surface quality of the sealing surface of the small steel ball seat part is detected, the part to be detected only needs to be installed into the device, the focal length of a microscope does not need to be adjusted repeatedly, the problems that the small steel ball seat part is unstable in positioning and is adjusted repeatedly in the measuring process are effectively solved, the processing efficiency is improved, and the stability of detection is guaranteed.
The technical scheme of the utility model is that: a device for rapidly detecting an inner hole of a tiny steel ball seat is characterized by comprising a guide positioning sleeve 1, a base 2 and a positioning pin 3; the base 2 is horizontally fixed on a detection platform of the detection device, a lower end face flat bottom hole 22 is formed in the center of the upper end face of the base 2, two positioning pin holes are uniformly distributed in the circumferential direction at the bottom of the lower end face flat bottom hole 22 and are respectively marked as a base left pin hole 23 and a base right pin hole 24, and the guide positioning sleeve 1 is arranged in the lower end face flat bottom hole 22;
the guide positioning sleeve 1 is of a cylindrical structure, the outer cylindrical surface of the guide positioning sleeve is in sliding fit with the lower end surface flat bottom hole 22 on the base 2, and two semi-cylindrical positioning pin holes are uniformly distributed in the outer cylindrical side surface along the circumferential direction and respectively correspond to the base left pin hole 23 and the base right pin hole 24 in the lower end surface flat bottom hole 22, so that the guide positioning sleeve 1 is prevented from rotating due to penetration of the positioning pin 3; two-stage step inner holes with diameters sequentially reduced are formed in the center of the guide positioning sleeve 1 from top to bottom and are respectively marked as a first step inner hole 11 and a second step inner hole 12 and used for guiding and positioning the micro steel ball seat part 5 to be detected; the small steel ball seat part 5 to be detected is provided with two step excircles from bottom to top, which are respectively marked as a lower step excircle 51 and an upper step excircle 52, the second step inner hole 12 on the guide positioning sleeve 1 is matched with the lower step excircle 51 of the small steel ball seat part 5 to be detected, during installation, the small steel ball seat part 5 to be detected firstly passes through the first step inner hole 11 and then enters the second step inner hole 12 in a sliding fit manner, because the detected part is very small, the guide positioning sleeve 1 has larger outer diameter and thickness due to the design of the two step inner holes, and is convenient for an operator to use, and meanwhile, if only one through hole is arranged at the position, the through hole can become a deep and long small hole, so that the manufacturing difficulty is high, and the operation is not convenient;
the positioning pin 3 passes through the semi-cylindrical positioning pin hole of the guide positioning sleeve 1 and is arranged in a base left pin hole 23 and a base right pin hole 24 on the base 2.
In a possible embodiment, the measuring head 4 is further included for measuring the depth of the inner hole 53 and the depth of the sealing surface 54 of the tiny steel ball seat part 5 to be detected, and the measuring head 4 is positioned right above the base 2 and is connected with a detecting device.
In a possible embodiment, the measuring head 4 is provided with three step excircles from bottom to top, which are respectively marked as a first step excircle 41, a second step excircle 42 and a third step excircle 43; the first step excircle 41 can move up and down along the axial direction in the inner hole 53 of the small steel ball seat part 5 to be detected, and is used for induction detection.
In a possible embodiment, the measuring head 4 can be connected to the holding end of the detecting device through the second stepped outer circle 42, or can be connected to the detecting device through the third stepped outer circle 43 in a threaded manner, so as to achieve various connection forms with the measuring device, and the usable range of the device is widened.
In a possible embodiment, the diameter of the first step outer circle 41 of the measuring head 4 is smaller than the diameter of the inner hole 53 of the tiny steel ball seat part 5 to be detected, and is larger than the diameter of the tiny steel ball used for auxiliary measurement.
In a possible embodiment, the end surface of the first step outer circle 41 of the measuring head 4 is a plane, so that the hole bottom of the inner hole 53 of the tiny steel ball seat part 5 to be detected and the highest point of the tiny steel ball for auxiliary measurement can be quickly positioned during measurement.
In one possible embodiment, the length of the first step outer circle 41 of the measuring head 4 is larger than the depth of the inner hole 53 of the tiny steel ball seat part 5 to be detected, and the length-diameter ratio cannot exceed 2: 1, the first step excircle 41 is prevented from deforming in the measuring process.
In a possible embodiment, the second stepped outer circle 42 of the measuring head 4 has an integral diameter and can be connected to the holding portion of the detecting device.
In a possible embodiment, after the guide positioning sleeve 1 is installed in the flat bottom hole 22 of the lower end surface of the base 2, the upper end surface of the guide positioning sleeve 1 is higher than the upper end surface of the base 2 by 5-15mm, so that an operator can conveniently assemble and disassemble the guide positioning sleeve 1.
In a possible embodiment, the positioning pin 3 is fitted in the positioning pin holes of the guide positioning sleeve 1 and the base 2, and the upper end surface of the positioning pin 3 is lower than the upper end surface of the guide positioning sleeve 1 by 0-3mm, so as to prevent the positioning pin 3 from affecting the measuring head 4 when detecting a part.
In a possible embodiment, the center of the lower end surface of the base 2 is further provided with a lower end surface flat bottom hole 21, and the arrangement of the lower end surface flat bottom hole 21 can reduce the contact area between the end surface and the detection platform, thereby improving the positioning accuracy.
In one possible embodiment, the guide positioning sleeve 1 is used for bearing the tiny steel ball seat part 5 to be detected, the tiny steel ball seat part is placed on a microscope objective table, the quality of the sealing surface 54 is checked by using a microscope, and the thickness of the guide positioning sleeve 1 does not exceed 10mm, so that the guide positioning sleeve 1 can be fastened by a pressing sheet when being used on the microscope objective table.
Use the utility model discloses an effect does: the device can realize reliable clamping positioning, accurate detection and quick switching aiming at the measurement of the depth of an inner hole and the depth of a sealing surface of a small steel ball seat part and the inspection of the quality of the sealing surface, and ensures the stability and the high efficiency of the detection process. The hidden dangers that clamping is unstable, parts need to be adjusted repeatedly after being switched, the measuring process is unstable and the like in the detecting process are effectively avoided, and the labor intensity of large-batch small part one-by-one detection is relieved. Meanwhile, the device can be designed into an adaptive shape according to the structural characteristics of the tiny parts, and the application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic view of the structure of the device of the present invention
FIG. 2 is a partial enlarged view of the device of the present invention
FIG. 3 is an assembly drawing of the device of the present invention
FIG. 4 is a schematic structural view of the middle guiding and positioning sleeve 1 of the present invention
FIG. 5 is a schematic view of the structure of the middle base 1 of the present invention
Fig. 6 is a schematic structural diagram of the middle measuring head 4 of the present invention
FIG. 7 is a schematic view of a structure of a small steel ball seat
Figure 8 schematic view of a microscope with the device of the present invention
Figure 9 a partial enlarged view of a microscope with the device of the present invention
FIG. 10 is a schematic diagram of the structural dimensions of the tiny steel ball seat part 5 to be detected
Wherein: 1-a guide positioning sleeve, 11-a first step inner hole, 12-a second step inner hole; 2-base, 21-lower end plane flat bottom hole, 22-upper end plane flat bottom hole, 23-base left pin hole, 24-base right pin hole; 3, positioning pins; 4-measuring head, 41-first step excircle, 42-second step excircle, 43-third step excircle; 5-a small steel ball seat part to be detected, 51-a first step excircle, 52-a second step excircle, 53-an inner hole, 54-a sealing surface.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The invention will be described in further detail with reference to the following figures and examples:
as shown in fig. 1-7, a device for rapidly detecting an inner hole of a tiny steel ball seat is characterized by comprising a guide positioning sleeve 1, a base 2 and a positioning pin 3; the base 2 is horizontally fixed on a detection platform of the detection device, a lower end face flat bottom hole 22 is formed in the center of the upper end face of the base 2, two positioning pin holes are uniformly distributed in the circumferential direction at the bottom of the lower end face flat bottom hole 22 and are respectively marked as a base left pin hole 23 and a base right pin hole 24, and the guide positioning sleeve 1 is arranged in the lower end face flat bottom hole 22;
the guide positioning sleeve 1 is of a cylindrical structure, the outer cylindrical surface of the guide positioning sleeve is in sliding fit with the lower end surface flat bottom hole 22 on the base 2, and two semi-cylindrical positioning pin holes are uniformly distributed in the outer cylindrical side surface along the circumferential direction and respectively correspond to the base left pin hole 23 and the base right pin hole 24 in the lower end surface flat bottom hole 22, so that the guide positioning sleeve 1 is prevented from rotating due to penetration of the positioning pin 3; two-stage step inner holes with diameters sequentially reduced are formed in the center of the guide positioning sleeve 1 from top to bottom and are respectively marked as a first step inner hole 11 and a second step inner hole 12 and used for guiding and positioning the micro steel ball seat part 5 to be detected; the small steel ball seat part 5 to be detected is provided with two step excircles from bottom to top, which are respectively marked as a lower step excircle 51 and an upper step excircle 52, the second step inner hole 12 on the guide positioning sleeve 1 is matched with the lower step excircle 51 of the small steel ball seat part 5 to be detected, during installation, the small steel ball seat part 5 to be detected firstly passes through the first step inner hole 11 and then enters the second step inner hole 12 in a sliding fit manner, because the detected part is very small, the guide positioning sleeve 1 has larger outer diameter and thickness due to the design of the two step inner holes, and is convenient for an operator to use, and meanwhile, if only one through hole is arranged at the position, the through hole can become a deep and long small hole, so that the manufacturing difficulty is high, and the operation is not convenient;
the positioning pin 3 passes through the semi-cylindrical positioning pin hole of the guide positioning sleeve 1 and is arranged in a base left pin hole 23 and a base right pin hole 24 on the base 2;
the device comprises a base 2, a measuring head 4 and a detection device, wherein the measuring head 4 is used for measuring the depth of an inner hole 53 and the depth of a sealing surface 54 of a to-be-detected tiny steel ball seat part 5, and the measuring head 4 is positioned right above the base 2 and connected with the detection device;
the measuring head 4 is provided with three step excircles from bottom to top, which are respectively marked as a first step excircle 41, a second step excircle 42 and a third step excircle 43; the excircle 41 of the first step can move up and down along the axial direction in the inner hole 53 of the small steel ball seat part 5 to be detected and is used for induction detection;
the measuring head 4 can be connected with the clamping end of the detection device through the second step excircle 42, or is in threaded connection with the detection device through the third step excircle 43, so that various connection forms with the measuring device are realized, and the usable range of the device is widened;
the diameter of the excircle 41 of the first step of the measuring head 4 is smaller than the diameter of the inner hole 53 of the micro steel ball seat part 5 to be measured and is larger than the diameter of the micro steel ball for auxiliary measurement;
the end surface of the excircle 41 of the first step of the measuring head 4 is a plane, so that the hole bottom of an inner hole 53 of the micro steel ball seat part 5 to be detected and the highest point of a micro steel ball for auxiliary measurement can be conveniently and quickly positioned during measurement;
the length of the first step excircle 41 of the measuring head 4 is greater than the depth of the inner hole 53 of the micro steel ball seat part 5 to be detected, and the length-diameter ratio cannot exceed 2: 1, preventing the excircle 41 of the first step from deforming in the measuring process;
the diameter of the excircle 42 of the second step of the measuring head 4 is an integral value, and the measuring head can be quickly connected with a clamping part of a detection device;
after the guide positioning sleeve 1 is arranged in the flat bottom hole 22 of the lower end face of the base 2, the upper end face of the guide positioning sleeve 1 is higher than the upper end face of the base 2, the height range is 5-15mm, and an operator can conveniently disassemble and assemble the guide positioning sleeve 1;
the positioning pin 3 is assembled in the positioning pin holes of the guide positioning sleeve 1 and the base 2, the upper end surface of the positioning pin 3 is lower than the upper end surface of the guide positioning sleeve 1, and the range is 0-3mm, so that the positioning pin 3 is prevented from influencing the measuring head 4 when detecting parts;
a lower end face flat bottom hole 21 is further formed in the center of the lower end face of the base 2, the contact area between the end face and the detection platform can be reduced due to the arrangement of the lower end face flat bottom hole 21, and the positioning precision is improved;
the guide positioning sleeve 1 is used for bearing the micro steel ball seat part 5 to be detected, the micro steel ball seat part is placed on a microscope objective table, the quality of the sealing surface 54 is checked by using a microscope, and the thickness of the guide positioning sleeve 1 is not more than 10mm so as to ensure that the guide positioning sleeve 1 can be fastened by a pressing sheet when being used on the microscope objective table.
Examples
The following description will take the example of measuring the depth of the inner hole 53 of the small ball seat part, the depth of the sealing surface 54 and checking the surface quality of the sealing surface 54 with reference to FIGS. 1-10. The method comprises the following specific steps:
when the depth of the inner hole 53 and the depth of the sealing surface 54 are measured:
1. the third step excircle 43 of the measuring head 4 is connected to the detection device through threads;
2. the lower end surface of the base 2 is placed on a detection device platform;
3. adjusting the position of the base 2 to make the center of the flat bottom hole 22 of the lower end surface coaxial with the first step excircle 41 of the measuring head 4;
4. the end face of the step inner hole 12 of the guide positioning sleeve 1 is downwards assembled into a flat bottom hole 22 of the lower end face of the base 2 in a sliding mode;
5. rotating the guide positioning sleeve 1 along the circumferential direction to enable the semi-cylindrical positioning pin holes of the guide positioning sleeve 1 to be respectively aligned with the positioning pin holes 23 and 24 of the base 2;
6. the positioning pins 3 are respectively arranged in the positioning pin holes 23 and 24;
7. clamping the micro steel ball seat part 5 to be detected by using tweezers, wherein the tweezers are used for assembling the first step excircle 51 of the micro steel ball seat part 5 into the second step inner hole 12 of the guide positioning sleeve 1 in a sliding manner along the first step inner hole 11 of the guide positioning sleeve 1;
8. starting a measuring device to measure the depth of the inner hole 53;
9. placing a tiny steel ball into the inner hole 53, and starting a measuring device to measure the depth of the sealing surface 54;
10. and after the measurement is finished, taking out the small steel ball seat part 5 and the small steel ball by using tweezers, and replacing the next part.
When checking the surface quality of the sealing surface 54:
1. the end face of a step inner hole 12 of the guide positioning sleeve 1 faces downwards, the guide positioning sleeve is placed in the center of a microscope objective table, and the upper end face of the guide positioning sleeve 1 is fixed by two tabletting clamps on the objective table;
2. clamping the micro steel ball seat part 5 by using tweezers, wherein the tweezers are used for assembling the first step excircle 51 of the micro steel ball seat part 5 into the second step inner hole 12 of the guide positioning sleeve 1 in a sliding manner along the first step inner hole 11 of the guide positioning sleeve 1;
3. adjusting the focal length of the microscope to observe the surface quality of the sealing surface 54;
4. and (5) taking out the small steel ball seat part 5 by using tweezers after the observation is finished, and replacing the next part.
The above description is only an embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any insubstantial modifications to the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for quickly detecting an inner hole of a tiny steel ball seat is characterized by comprising a guide positioning sleeve (1), a base (2) and a positioning pin (3); the base (2) is horizontally fixed on a detection platform of the detection device, an upper end face flat bottom hole (22) is formed in the center of the upper end face of the base, two positioning pin holes are uniformly distributed in the circumferential direction of the bottom of the upper end face flat bottom hole (22) and are respectively marked as a base left pin hole (23) and a base right pin hole (24), and the guide positioning sleeve (1) is arranged in the upper end face flat bottom hole (22);
the guide positioning sleeve (1) is of a cylindrical structure, the outer cylindrical surface of the guide positioning sleeve is in sliding fit with a flat bottom hole (22) of the upper end surface on the base (2), and two semi-cylindrical positioning pin holes are uniformly distributed on the outer cylindrical side surface along the circumferential direction and respectively correspond to a left base pin hole (23) and a right base pin hole (24) on the flat bottom hole (22) of the upper end surface, so that a positioning pin (3) can penetrate through the guide positioning sleeve to prevent the guide positioning sleeve (1) from rotating; two-stage step inner holes with diameters sequentially reduced are formed in the center of the guide positioning sleeve (1) from top to bottom and are respectively marked as a first step inner hole (11) and a second step inner hole (12) and used for guiding and positioning the micro steel ball seat part (5) to be detected; the small steel ball seat part (5) to be detected is provided with two step excircles from bottom to top, which are respectively marked as a lower step excircle (51) and an upper step excircle (52), and a second step inner hole (12) on the guide positioning sleeve (1) is matched with the lower step excircle (51) of the small steel ball seat part (5) to be detected;
the positioning pin (3) penetrates through the semi-cylindrical positioning pin hole of the guide positioning sleeve (1) and is installed in a base left pin hole (23) and a base right pin hole (24) on the base (2).
2. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized by further comprising a measuring head (4) for measuring the depth of the inner hole (53) and the depth of the sealing surface (54) of a tiny steel ball seat part (5) to be detected, wherein the measuring head (4) is located right above the base (2) and is connected with a detecting device.
3. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that the measuring head (4) is provided with three step excircles from bottom to top, which are respectively marked as a first step excircle (41), a second step excircle (42) and a third step excircle (43); the excircle (41) of the first step can move up and down along the axis in the inner hole (53) of the small steel ball seat part (5) to be detected and is used for induction detection.
4. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that the measuring head (4) can be connected with the clamping end of the detecting device through the outer circle (42) with the second step or is in threaded connection with the detecting device through the outer circle (43) with the third step.
5. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that the diameter of the excircle (41) of the first step of the measuring head (4) is smaller than the diameter of the inner hole (53) of the tiny steel ball seat part (5) to be detected and is larger than the diameter of the tiny steel ball for auxiliary measurement.
6. The device for rapidly detecting the inner hole of the tiny steel ball seat as claimed in claim 3, wherein the end surface of the first step excircle (41) of the measuring head (4) is a plane, so as to rapidly position the hole bottom of the inner hole (53) of the tiny steel ball seat part (5) to be detected and the highest point of the tiny steel ball for auxiliary measurement during measurement.
7. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that after the guide positioning sleeve (1) is installed in the flat bottom hole (22) of the upper end face of the base (2), the upper end face of the guide positioning sleeve (1) is higher than the upper end face of the base (2).
8. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that the positioning pin (3) is assembled in the positioning pin holes of the guide positioning sleeve (1) and the base (2), and the upper end surface of the positioning pin (3) is lower than that of the guide positioning sleeve (1).
9. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that a flat bottom hole (21) of the lower end face is further formed in the center of the lower end face of the base (2).
10. The device for rapidly detecting the inner hole of the tiny steel ball seat is characterized in that the thickness of the guide positioning sleeve (1) is not more than 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848280.9U CN213714268U (en) | 2020-08-28 | 2020-08-28 | Device for quickly detecting inner hole of small steel ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848280.9U CN213714268U (en) | 2020-08-28 | 2020-08-28 | Device for quickly detecting inner hole of small steel ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213714268U true CN213714268U (en) | 2021-07-16 |
Family
ID=76791880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021848280.9U Active CN213714268U (en) | 2020-08-28 | 2020-08-28 | Device for quickly detecting inner hole of small steel ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213714268U (en) |
-
2020
- 2020-08-28 CN CN202021848280.9U patent/CN213714268U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10436563B2 (en) | Comprehensive checking fixture for steering knuckle | |
| CN103245272B (en) | For the gauge that short female cone is measured | |
| CN213714268U (en) | Device for quickly detecting inner hole of small steel ball seat | |
| CN113188409A (en) | Dimension detection device and dimension detection method for O-shaped groove in straight hole | |
| CN212620564U (en) | Comprehensive measuring tool for measuring size of deformable part | |
| CN103170904A (en) | Cylinder hole center alignment device of honing machine | |
| CN210952770U (en) | Device for detecting diameter of outer circle of cone | |
| CN210773745U (en) | Engineering machine tool gearbox shifting fork checking fixture | |
| CN215317450U (en) | Combined edge finder | |
| CN210051285U (en) | Utensil is examined fast to plane degree of flange dust cover | |
| CN112762794A (en) | A examine utensil for detecting dredge pump impeller blade import | |
| CN202582458U (en) | Tapered-hole measuring device for large tapered bore workpieces | |
| CN207963735U (en) | A kind of depth measurement tools of cambered surface stepped hole | |
| CN220170133U (en) | Gear external diameter and thickness measurement tool | |
| CN112097720A (en) | Detection apparatus for tapering and tip diameter of cone part | |
| CN212963156U (en) | Detection tool for parallelism of tubular workpiece | |
| CN214276707U (en) | Hole position detection tool | |
| CN216482698U (en) | Utensil is examined to flabellum external diameter size | |
| CN220853550U (en) | Online detection device for center distance and symmetry degree of engine connecting rod | |
| CN212721252U (en) | Detection tool for detecting depth of bearing hole ring groove | |
| CN215338041U (en) | Measuring device for full complement thrust tapered roller bearing top ring flange | |
| CN219454944U (en) | Tool for measuring eccentricity of product | |
| CN214308565U (en) | Device for rapidly detecting height of V-shaped groove of knife handle and symmetry degree of lug grooves of knife handle | |
| CN211291310U (en) | Shaft part plane symmetry measuring device | |
| CN215447651U (en) | Special inspection tool for guide cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |