CN220583279U - Detection device for rapidly measuring diameter of small shaft channel - Google Patents
Detection device for rapidly measuring diameter of small shaft channel Download PDFInfo
- Publication number
- CN220583279U CN220583279U CN202321242175.4U CN202321242175U CN220583279U CN 220583279 U CN220583279 U CN 220583279U CN 202321242175 U CN202321242175 U CN 202321242175U CN 220583279 U CN220583279 U CN 220583279U
- Authority
- CN
- China
- Prior art keywords
- measuring
- fixing rod
- small shaft
- rod
- diameter
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a detection device for rapidly measuring the diameter of a small shaft channel, which aims to solve the technical problems that the conventional small shaft channel diameter measurement process is complicated and measurement errors are easy to generate; the detection unit is a dial indicator or a dial indicator, a space to be detected is defined between a measuring scale of the dial indicator or the dial indicator and the first fixing rod and the second fixing rod and used for placing a piece to be detected, the piece to be detected is a small shaft, and accurate measurement of the diameter of a small shaft channel can be achieved through three-point contact. The device has the advantages of simple structure, convenient operation and use, wide application range and capability of ensuring higher repeated measurement accuracy.
Description
Technical Field
The utility model relates to a detection device, in particular to a detection device for rapidly measuring the diameter of a small shaft channel.
Background
The main function of the small shaft is to cooperate with the balls for supporting and connecting the rotary parts, in order to ensure that the balls roll stably in the grooves of the small shaft, friction in the rotary motion process is reduced, so that rotary precision is ensured, the service life is prolonged, the groove size is generally required to be detected after machining is finished, and the final qualification rate of the parts is further ensured.
The existing rapid detection method in processing production uses two measuring sticks to be matched with a dial indicator for measurement, is usually directly measured by a manual handheld measuring tool and a workpiece, has complex operation, can not keep the positions of the workpiece and the measuring tool relatively stable, and is easy to generate measurement errors.
Disclosure of Invention
The utility model aims to solve the technical problems that the existing small shaft channel diameter measuring process is complicated and measurement errors are easy to generate, and provides a device for rapidly measuring the small shaft channel diameter.
In order to achieve the above object, the technical solution of the present utility model is as follows:
the utility model provides a detection device of quick measuring small shaft channel diameter which characterized in that:
comprises a fixing unit and a detecting unit;
the fixing unit comprises a base and a bracket; the lower end of the bracket is fixedly connected with the base, a first fixing rod is arranged in the middle of the bracket, and a bump is arranged on one side of the upper end of the bracket; the base is provided with a second fixing rod; the convex blocks, the first fixing rods and the second fixing rods are positioned on the same side of the bracket;
the detection unit comprises a dial indicator or a dial indicator, a through hole is formed in the convex block, and the central axis of the through hole is coincident with the extension line of the central axis of the second fixed rod; the measuring rule of the dial indicator or the dial indicator extends into the through hole to be connected with the convex block, and the lower end of the measuring rule extends out of the through hole;
the first fixing rod, the second fixing rod and the measuring ruler are positioned in the same plane, and a space to be measured is formed among the first fixing rod, the second fixing rod and the measuring ruler and is used for placing a small shaft to be measured; the end of the first fixing rod, which is far away from the bracket, the end of the second fixing rod, which is far away from the base, and the lower end of the measuring ruler are respectively provided with steel balls matched with the channels of the small shafts to be measured, and each steel ball is contacted with the channels of the small shafts to be measured.
Further, the detecting unit further comprises a measuring rod, the measuring rod is located at the lower end of the measuring ruler, the measuring rod and the measuring ruler sequentially extend into the through hole to be connected with the convex block, the upper end of the measuring rod is in butt joint with the lower end of the measuring ruler, the lower end of the measuring rod extends out of the through hole, the lower end of the measuring rod is provided with a steel ball matched with a channel of a small shaft to be detected, and the steel ball is used for being in contact with the channel of the small shaft to be detected, so that the measuring range is improved.
Further, a blind groove is arranged in the through hole along the radial direction, an elastic piece is arranged in the blind groove, one end of the elastic piece is fixedly connected with the bottom of the blind groove, and the other end of the elastic piece is connected with the upper portion of the measuring rod and used for guaranteeing quick recovery of the measuring position of the measuring rod.
Further, the second fixing rod is lower than the first fixing rod in height, and the extension lines of the central axes of the second fixing rod and the first fixing rod are perpendicular to each other.
Further, the position of the first fixing rod can be adjusted up and down along the support, and therefore the device is suitable for to-be-tested pieces with different sizes.
Further, the position of the second fixing rod can be transversely adjusted along the base, and then the corresponding space to be measured is matched according to the size of the piece to be measured.
Further, the steel balls can be detached, and the steel balls with corresponding sizes can be matched and exchanged according to actual test requirements.
Further, the first fixing rod is in threaded connection with the bracket; the second dead lever and base threaded connection, and then improve the convenience that first dead lever and second dead lever adjusted.
Compared with the prior art, the utility model has the beneficial effects that:
1. the detection device comprises a fixing unit and a detection unit, wherein the fixing unit comprises a base and a bracket, a first fixing rod and a second fixing rod are respectively arranged on the base and the bracket, and steel balls are respectively arranged at the end parts of the first fixing rod and the second fixing rod; the detection unit is a dial indicator or a dial indicator, a space to be detected is defined between a measuring scale of the dial indicator or the dial indicator and the first fixing rod and the second fixing rod and used for placing a piece to be detected, the piece to be detected is a small shaft, and accurate measurement of the diameter of a small shaft channel can be achieved through three-point contact.
2. The detection unit further comprises a measuring rod, the measuring rod is positioned at the lower end of the measuring rule, the measuring rod and the measuring rule sequentially extend into the through hole to be connected with the convex block, the upper end of the measuring rod is in butt joint with the end part of the lower end of the measuring rule, the lower end of the measuring rod extends out of the through hole, and different measuring rod lengths are set according to different pieces to be detected, so that the application range of the detection device is improved.
3. In the detection device, the through holes of the convex blocks are internally provided with the blind grooves along the radial direction, the blind grooves are internally provided with the elastic pieces, one ends of the elastic pieces are fixedly connected with the bottoms of the blind grooves, and the other ends of the elastic pieces are connected with the upper parts of the measuring rods, so that the resetting of the measuring rods under the action of the elastic pieces is ensured, and the high repeated measurement precision of the detection device is ensured.
4. According to the utility model, the first fixing rod and the second fixing rod can be used for adjusting specific positions according to the size of the to-be-measured piece, so that the application is more flexible, and the measurement range is wider.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
The icons are as follows:
the device comprises a base, a second fixing rod, a support, a first fixing rod, a lug, a through hole, a blind groove, an elastic piece, a dial indicator, a measuring rod and a small shaft to be measured, wherein the base is 1-11-second fixing rod, the support is 2-21-first fixing rod, the lug is 22-221-through hole, the blind groove is 222-223-elastic piece, the dial indicator is 3-4-measuring rod and the small shaft to be measured is 5-.
Detailed Description
The technical scheme of the present utility model will be fully described in detail below with reference to the accompanying drawings and the specific embodiments.
As shown in FIG. 1, the utility model provides a detection device for rapidly measuring the diameter of a small shaft channel, which comprises a fixing unit and a detection unit.
The fixing unit comprises a base 1 and a bracket 2; the lower end of the bracket 2 is fixedly connected with the base 1, a first fixing rod 21 is arranged in the middle, and a bump 22 is arranged on one side of the upper end; the base 1 is provided with a second fixing rod 11; the bump 22, the first fixing rod 21 and the second fixing rod 11 are positioned on the same side of the bracket 2. In order to improve the measurement efficiency, the top of the second fixing rod 11 may be made lower than the first fixing rod 21, and the extended lines of the central axes of the two may be perpendicularly intersected.
The detection unit comprises a dial indicator 3 or a percentage ruler, and corresponding measuring tools can be selected according to actual testing requirements. The bump 22 is provided with a through hole 221, and as an optimal design manner, the central axis of the through hole 221 coincides with the extension line of the central axis of the second fixing rod 11. The measuring tape of the dial gauge 3 or the dial indicator extends into the through hole 221 to be connected with the bump 22, and the lower end of the measuring tape extends out of the through hole 221.
The first fixing rod 21, the second fixing rod 11 and the measuring scale are located in the same plane, one end of the first fixing rod 21, which is far away from the bracket 2, one end of the second fixing rod 11, which is far away from the base 1, and the lower end of the measuring scale are respectively provided with steel balls matched with the channels of the small shaft 5 to be measured, a space to be measured is formed between the three parts, the space to be measured is used for placing the small shaft 5 to be measured, and the steel balls at the end parts of the three parts are all contacted with the channels of the small shaft 5 to be measured.
The first fixing rod 21 may be screw-coupled with the bracket 2, and the position of the first fixing rod 21 may be adjusted up and down along the bracket 2 according to the size of the actually measured small shaft diameter. The second fixing rod 11 can be in threaded connection with the base 1, and the position of the second fixing rod 11 can be transversely adjusted along the base 1, and the adjustable fixing support point enables the device to be more flexible in application and wider in measurement range. The steel ball that measures and use can dismantle from first dead lever 21, second dead lever 11 and micrometer 3 or the measuring tape of percentage table generally, replace with the steel ball that matches with the channel of waiting for measuring the pony roll 5, the one end that support 2 was kept away from to first dead lever 21, the one end that base 1 was kept away from to second dead lever 11 and the steel ball size of measuring tape lower extreme are the same, and form the space that awaits measuring between the three for place waiting for measuring the pony roll 5 and measure its channel diameter.
In order to improve the application range of the device, the detection unit of the embodiment further comprises a measuring rod 4, the measuring rod 4 is located at the lower end of the measuring scale, the measuring rod 4 and the measuring scale sequentially extend into the through hole 221 to be connected with the bump 22, the upper end of the measuring rod 4 is abutted to the lower end of the measuring scale, the lower end extends out of the through hole 221, and the lower end is provided with a steel ball. The dial indicator or the dial indicator measuring ruler with different lengths can be matched according to different pieces to be detected, or the measuring rod 4 with different lengths can be matched according to the dial indicator 3 or the dial indicator measuring ruler, so that the flexibility and the convenience of the use of the detection device are improved, and the application range of the detection device is further improved.
When the measuring rod 4 is arranged, the blind groove 222 is arranged in the through hole 221 along the radial direction, the elastic piece 223 is arranged in the blind groove 222, one end of the elastic piece 223 is fixedly connected with the bottom of the blind groove 222, and the other end of the elastic piece 223 is connected with the upper part of the measuring rod 4, so that the quick reset of the measuring rod 4 is improved, the next measuring position is ensured to be unchanged, and the measuring efficiency is further improved. The elastic member 223 may be a spring plate or an elastic rod, or a lever plus a vertical axis spring, or other structures may be provided, so as to achieve quick return of the measuring rod 4.
In addition, the specific positions of the first fixing rod 21 and the second fixing rod 11 can be set according to the actual design requirement, for example, the first fixing rod 21 and the second fixing rod 11 are arranged on the bracket 2 in parallel, so that the to-be-tested piece can be placed stably; alternatively, the first fixing rod 21 and the second fixing rod 11 may be disposed on the base 1, and disposed in parallel, with a distance therebetween being set correspondingly according to a specific size of the workpiece to be measured.
The working process of the detection device of the utility model is as follows:
before measurement, the fixed positions of the first fixing rod 21 and the second fixing rod 11 are adjusted according to the size range of the diameter of the small shaft 5 to be measured, steel balls matched with the width of the channel of the small shaft 5 to be measured are selected, then a workpiece with standard size is placed, the zero position of the dial indicator 3 or the dial indicator is adjusted, and then the workpiece with standard size is taken out.
The small shaft 5 to be measured is stably leaned against the first fixing rod 21 and the second fixing rod 11, and is placed in a space to be measured which is surrounded by the first fixing rod 21 and the second fixing rod 11 and the measuring rod 4, at the moment, the small shaft 5 to be measured can push the measuring rod 4 with the steel ball to move upwards, and the measuring rod 4 pushes the dial indicator 3 or the dial indicator to measure the small shaft 5 to be measured, so that the channel diameter of the small shaft 5 to be measured is obtained, and the measuring precision of the device can reach 0.002mm. In this process, the connecting end of the elastic member 223 and the measuring rod 4 is driven to bend upward along with the measuring rod 4 due to the upward movement of the measuring rod 4. After the measurement is finished, the small shaft 5 to be measured is withdrawn, at this moment, the measuring rod 4 is reset under the action of the elastic piece 223, so that a measurement process is completed.
The detection device of the embodiment mainly measures the size difference for the small shaft channels with the same size, designs threaded holes with different sizes on the bracket, and then can install the first fixing rod 21 at various size positions, thereby integrating various specification detection tools into a whole, and being applicable to the detection of shaft measurement channels with various types.
The detection device of the embodiment adopts three-point positioning, and the relative positions of the three steel balls are stable, so that the detection device accords with practical application and is stable in measurement, and the measurement error is reduced; the bearing raceway measuring device has the same measuring principle as that of a bearing raceway, if corresponding constraint conditions are added on the basis of the detecting device, the bearing raceway measuring device can also be used for manufacturing a bearing raceway rapid detection measuring tool, and has the advantages of high measuring precision, simple structure and convenience in operation.
While embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model.
Claims (7)
1. A detection device for rapidly measuring the diameter of a small shaft channel is characterized in that:
comprises a fixing unit and a detecting unit;
the fixing unit comprises a base (1) and a bracket (2); the lower end of the bracket (2) is fixedly connected with the base (1), a first fixing rod (21) is arranged in the middle of the bracket, and a bump (22) is arranged on one side of the upper end of the bracket; a second fixing rod (11) is arranged on the base (1); the convex blocks (22), the first fixing rods (21) and the second fixing rods (11) are positioned on the same side of the bracket (2);
the detection unit comprises a dial indicator (3) or a dial indicator, and the lug (22) is provided with a through hole (221); the measuring scale of the dial indicator (3) or the dial indicator extends into the through hole (221) to be connected with the convex block (22), and the lower end of the measuring scale extends out of the through hole (221);
the first fixing rod (21), the second fixing rod (11) and the measuring ruler are positioned in the same plane, and a space to be measured is formed between the first fixing rod and the second fixing rod and is used for placing a small shaft (5) to be measured; one end of the first fixing rod (21) far away from the bracket (2), one end of the second fixing rod (11) far away from the base (1) and the lower end of the measuring tape are respectively provided with steel balls matched with the channels of the small shaft (5) to be measured, and each steel ball is in contact with the channels of the small shaft (5) to be measured.
2. The device for rapidly measuring the diameter of a small shaft channel according to claim 1, wherein:
the detection unit further comprises a measuring rod (4), the measuring rod (4) is located at the lower end of the measuring rule, the measuring rod (4) and the measuring rule sequentially extend into the through hole (221) to be connected with the convex block (22), the upper end of the measuring rod (4) is abutted to the end part of the lower end of the measuring rule, the lower end extends out of the through hole (221) and the end part of the lower end is provided with a steel ball matched with a channel of a small shaft (5) to be detected, and the steel ball is used for being in contact with the channel of the small shaft (5) to be detected.
3. The device for rapidly measuring the diameter of a small shaft channel according to claim 2, wherein:
a blind groove (222) is arranged in the through hole (221) along the radial direction, an elastic piece (223) is arranged in the blind groove (222), one end of the elastic piece (223) is fixedly connected with the bottom of the blind groove (222), and the other end of the elastic piece is connected with the upper part of the measuring rod (4); the elastic piece (223) is a spring piece, an elastic rod or a lever and a spring with a vertical axis, and is used for realizing the quick reset of the measuring rod (4).
4. A device for rapidly measuring small shaft channel diameter as in claim 3, wherein:
the second fixing rod (11) is lower than the first fixing rod (21), and the extension lines of the central axes of the second fixing rod and the first fixing rod are perpendicular to each other.
5. A device for rapidly measuring small shaft channel diameter according to any one of claims 1-4, characterized in that:
the support (2) is provided with threaded holes with different sizes for installing the first fixing rod (21), so that the position of the first fixing rod (21) can be adjusted up and down along the support (2).
6. The device for rapidly measuring the diameter of a small shaft channel according to claim 5, wherein:
the steel ball is detachable.
7. The device for rapidly measuring the diameter of a small shaft channel according to claim 6, wherein:
the first fixing rod (21) is in threaded connection with the bracket (2);
the second fixing rod (11) is in threaded connection with the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242175.4U CN220583279U (en) | 2023-05-22 | 2023-05-22 | Detection device for rapidly measuring diameter of small shaft channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242175.4U CN220583279U (en) | 2023-05-22 | 2023-05-22 | Detection device for rapidly measuring diameter of small shaft channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583279U true CN220583279U (en) | 2024-03-12 |
Family
ID=90120206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321242175.4U Active CN220583279U (en) | 2023-05-22 | 2023-05-22 | Detection device for rapidly measuring diameter of small shaft channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583279U (en) |
-
2023
- 2023-05-22 CN CN202321242175.4U patent/CN220583279U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109839047B (en) | Part surface hole position and center distance size detection tool | |
| CN102506632A (en) | Device for measuring taper hole | |
| CN201145553Y (en) | Adjustable hole center distance measuring ruler | |
| CN102506689A (en) | Length measuring instrument-based high precision thread plug gauge measuring device and measurement method | |
| CN105067046B (en) | A kind of automatic drill riveter calibration method | |
| CN200968846Y (en) | Stepped hole depth measuring instrument | |
| CN110220436A (en) | For measuring the cubing of the tilting hole site precision of axis outer wall | |
| CN220583279U (en) | Detection device for rapidly measuring diameter of small shaft channel | |
| CN211346656U (en) | Tool for measuring cylindricity of outer surface of round pipe or round rod | |
| CN111811363A (en) | Measure measuring device of V type groove size | |
| CN102425983B (en) | Apparatuses for measuring channel and inner spherical surface of bell-shaped shell | |
| CN204694230U (en) | A kind of endoporus contact measuring apparatus | |
| CN208155199U (en) | Axial dimension measuring device | |
| CN102997808A (en) | Size measuring tool | |
| CN202974124U (en) | Size measuring tool | |
| CN202092549U (en) | Measuring instrument capable of simultaneously measuring height and parallel deviation of two retaining sides of outer ring | |
| CN220339304U (en) | Inner gear ring M value detection device | |
| CN110836625A (en) | Cantilever type length high-precision length measuring device | |
| CN110763172A (en) | Measuring tool and measuring method for spherical bearing part | |
| CN213422038U (en) | Bottom spigot diameter measuring tool for large workpiece with middle bulge | |
| CN218380712U (en) | Spring forming size detection device | |
| CN220062795U (en) | Gauge for detecting length of oil pipe | |
| CN203274606U (en) | Double lever sinking platform outside diameter micrometer | |
| CN116379876B (en) | Measuring tool for mechanical sample | |
| CN215064257U (en) | Quick inspection frock that two parallel surfaces of inspection distance and face are beated |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |