CN217980262U - Roundness measurement clamp for small-size ball parts - Google Patents
Roundness measurement clamp for small-size ball parts Download PDFInfo
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- CN217980262U CN217980262U CN202221806782.4U CN202221806782U CN217980262U CN 217980262 U CN217980262 U CN 217980262U CN 202221806782 U CN202221806782 U CN 202221806782U CN 217980262 U CN217980262 U CN 217980262U
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Abstract
The utility model provides a roundness measurement anchor clamps of small-size ball class part, includes sleeve, soft stopper, push rod, sealing washer, spring and silica gel mantle, a round hole that is used for placing ball class part is seted up on telescopic top, one deck silica gel mantle is laid to telescopic upper surface, the spring is located the sleeve, the upper end top of spring is touched sleeve inner chamber top, the lower extreme of spring is contradicted with the upper portion of soft stopper, soft stopper seal cover dress is in the sleeve inner wall, the lower part and the push rod of soft stopper are connected, the lower part of push rod stretches out the sleeve lower extreme. The utility model provides a fix a position roundness measurement anchor clamps of accurate, simple operation, the higher small-size ball part of efficiency.
Description
Technical Field
The utility model belongs to high-efficient roundness measuring device, especially a roundness measuring anchor clamps of small-size ball part.
Background
At present, the precision bearing is widely applied to the fields of precision machine tools, petrochemical industry, military, national defense, aerospace and the like. The steel ball is used as a key part of the rolling bearing, and the movement precision and the service life of the bearing are greatly influenced by the spherical error and the batch consistency of the steel ball. The roundness measuring instrument is a length measuring tool for measuring roundness by using a rotating shaft method. When the spherical errors of the balls are actually measured, a roundness meter is needed, the roundness errors of three planes of the equator, which form 90 degrees with each other, in the spheres are reasonably measured, a steel ball needs to be placed on a main shaft of the roundness meter when the measurement is carried out, the steel ball needs to correspondingly rotate along with the main shaft, and the actual roundness errors of the sections are measured by using the minimum and maximum radii of the measured spheres.
For small-size ball parts, the small-size ball parts are generally adhered to the end face of a concentric cylindrical rod by using an adhesive and then clamped in a three-grab chuck through a positioning clamp, and due to the fact that the coaxiality of the cylindrical rod is poor, the error is large during probe measurement, and the fluctuation of a measurement result is large. The roundness of different equatorial planes needs to be bonded again when the roundness of the different equatorial planes is measured, the clamping is labor-consuming, the centering and the positioning are time-consuming and labor-consuming, and the efficiency is extremely low.
Disclosure of Invention
In order to overcome the positioning inaccuracy of the prior art, the troublesome dismouting, inefficiency scheduling problem, the utility model aims to provide a fix a position roundness measurement anchor clamps of accurate, simple operation, the higher small-size ball part of efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a roundness measurement anchor clamps of small-size ball class part, includes sleeve, soft stopper, push rod, sealing washer, spring and silica gel mantle, a round hole that is used for placing ball class part is seted up on telescopic top, one deck silica gel mantle is laid to telescopic upper surface, the spring is located the sleeve, the upper end top of spring is touched sleeve inner chamber top, the lower extreme of spring is contradicted with the upper portion of soft stopper, soft stopper seal cover dress is in the sleeve inner wall, the lower part and the push rod of soft stopper are connected, the lower part of push rod stretches out the sleeve lower extreme.
Furthermore, a plurality of sealing grooves are formed in the outer side surface of the soft plug, and sealing rings are installed inside the soft plug. The scheme can ensure the air tightness of the inner air when the push rod moves up and down.
Still further, the lower end of the push rod is an operation part.
The utility model discloses in, the soft stopper can reciprocate along with the push rod to it is flexible to drive the spring, changes the air volume between sleeve and the soft stopper, and then changes internal pressure. The soft plug is tightly connected with the inner wall of the sleeve, the surface of the soft plug has certain friction force, and the soft plug can smoothly slide up and down on the inner wall. The end of the soft plug is tightly sleeved by a conical sealing ring, so that the air tightness between the sleeve and the soft plug can be ensured when the push rod moves up and down. The push rod is pushed upwards firstly, so that the soft plug and the spring are driven to move upwards together, and the spring is in a compressed state. Then the ball parts are placed in the round holes of the sleeve, the pressure of the push rod is relieved, and the spring rebounds to drive the push rod to move downwards. At the moment, the air volume between the sleeve and the soft plug is increased, and the internal pressure of the sleeve is smaller than the external atmospheric pressure, so that the ball parts can be pressed on the silica gel soft membrane to play a role in positioning.
The beneficial effects of the utility model are that: 1. the device has simple structure, time-saving disassembly and assembly, convenient workpiece clamping, quick centering during measurement and improved measurement efficiency; 2. the device has good internal sealing performance, accurate positioning of ball parts and high measurement precision.
Drawings
Fig. 1 is a two-dimensional diagrammatic view of a roundness measuring jig for a small-sized ball part.
FIG. 2 is a three-dimensional block diagram of the plunger and piston in the clamp configuration.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, a roundness measurement anchor clamps of small-size ball part, including ball part 1, silica gel mantle 2, sleeve 3, spring 4, soft stopper 6 and push rod 7, a round hole that is used for placing ball part is seted up on the top of sleeve 3, one deck silica gel mantle 2 is laid to the upper surface of sleeve 3, spring 4 is located sleeve 3, the upper end top of spring 4 touches 3 inner chamber tops of sleeve, the lower extreme of spring 4 is contradicted with the upper portion of soft stopper 6, soft stopper 6 sealed suit is in 3 inner walls of sleeve, the lower part and the push rod 7 of soft stopper 6 are connected, the lower part of push rod 77 stretches out 3 lower extreme of sleeve.
Furthermore, a plurality of sealing grooves are formed in the outer side surface of the soft plug 6, and a sealing ring 5 is arranged in the sealing groove. The scheme can ensure the air tightness of the inner air when the push rod moves up and down.
Still further, the lower end of the push rod is an operation part.
The sleeve 3 is made of stainless steel, a round hole is formed in the top end of the sleeve to place the ball part 1, a layer of silica gel soft film 2 is laid on the surface of the top end of the sleeve 3, and the sleeve is soft and has certain elasticity. When the ball part 1 is placed in the round hole, the surface of the part can be guaranteed not to be damaged during measurement. The spring 4 is first installed in the sleeve 3 and the unsprung sheet is connected to the cork 6. The surface of the soft plug 6 has certain friction force and can smoothly slide up and down in the sleeve. A plurality of sealing grooves are formed in the surface of the soft plug 6 and are tightly sleeved through the conical sealing ring 5, so that the internal sealing performance can be guaranteed. The push rod 7 is pushed upwards first, so that the soft plug 6 and the spring 4 are driven to move upwards together, and the spring is in a compressed state. Then the ball part 1 is placed at the round hole of the sleeve, the pressure of the push rod is removed, and the spring rebounds to drive the push rod to move downwards. The air volume between the sleeve and the soft plug is increased in the process, and the internal pressure of the sleeve is smaller than the external atmospheric pressure, so that the ball parts can be pressed on the silica gel soft film 2 to play a role in positioning. The positioning method comprises the following steps:
1) The push rod 7 is pushed upwards to a certain height, and the spring 4 is in a compressed state.
2) The workpiece is then placed in the circular hole of the sleeve 1.
3) The pushing force on the push rod is slowly released, the spring rebounds, and the push rod moves downwards.
4) The volume of the air between the sleeve 3 and the soft plug 6 is increased, the internal pressure is reduced, and the workpiece can be tightly pressed on the silica gel soft film 2 by utilizing the fact that the atmospheric pressure value is larger than the internal pressure.
5) Finally, the sleeve 3 is clamped in a three-jaw chuck on the roundness measuring machine, and the measurement is started.
Furthermore, a round hole is formed in the top end of the sleeve, the ball parts are placed on the round hole, a layer of silica gel soft film is laid on the upper surface of the sleeve, the material is soft and has certain elasticity, and the sealing performance inside the sleeve during measurement can be guaranteed. The upper end and the lower end of the spring are connected with the top end of the sleeve and the push rod through hinges. A plurality of seal grooves are formed in the end portion of the soft plug, and seal rings are arranged in the soft plug, so that the airtightness of the inner air can be guaranteed when the push rod moves up and down. The soft plug can move up and down along with the push rod and drive the spring to stretch and retract, so that the volume of air between the sleeve and the soft plug is changed, and the internal pressure is further changed.
Furthermore, the soft plug is tightly connected with the inner wall of the sleeve, the surface of the soft plug has certain friction force, and the soft plug can smoothly slide up and down on the inner wall. The end of the soft plug is tightly sleeved by a conical sealing ring, so that the air tightness between the sleeve and the soft plug can be ensured when the push rod moves up and down.
Furthermore, the push rod is pushed upwards firstly, so that the soft plug and the spring are driven to move upwards together, and the spring is in a compressed state. Then the ball parts are placed in the round holes of the sleeve, the pressure of the push rod is relieved, and the spring rebounds to drive the push rod to move downwards. At the moment, the volume of air between the sleeve and the soft plug is increased, and the internal pressure of the sleeve is smaller than the external atmospheric pressure, so that the ball parts can be pressed on the silica gel soft film to play a role in positioning.
In this embodiment, the silicon nitride bearing balls are selected to have respective sizes of
Carry out the clamping to the three equatorial plane of unidimensional bearing ball respectively, contrast tradition bonding mode with the utility model discloses the required time of clamping mode set forth, used time is shown as table 1.
TABLE 1
The embodiments described in this specification are merely examples of implementations of the inventive concepts, which are intended for illustrative purposes only. The scope of the present invention should not be construed as being limited to the specific forms set forth in the following description, but rather should be construed as encompassing all the equivalent technical means which may be conceived by one of ordinary skill in the art based on the teachings of the present invention.
Claims (3)
1. The utility model provides a roundness measurement anchor clamps of small-size ball class part, its characterized in that, anchor clamps include sleeve, soft stopper, push rod, sealing washer, spring and silica gel mantle, a round hole that is used for placing ball class part is seted up on telescopic top, one deck silica gel mantle is laid to telescopic upper surface, the spring is located the sleeve, the upper end top of spring is touched sleeve inner chamber top, the lower extreme of spring is contradicted with the upper portion of soft stopper, soft stopper seal cover dress is in the sleeve inner wall, the lower part and the push rod of soft stopper are connected, the lower part of push rod stretches out the sleeve lower extreme.
2. The roundness measuring jig for small-sized ball parts according to claim 1, wherein a plurality of seal grooves are formed in the outer side surface of the soft plug, and seal rings are installed inside the seal grooves.
3. The roundness measuring jig for small-sized ball parts according to claim 1 or 2, wherein the lower end of the push rod is an operating portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221806782.4U CN217980262U (en) | 2022-07-13 | 2022-07-13 | Roundness measurement clamp for small-size ball parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221806782.4U CN217980262U (en) | 2022-07-13 | 2022-07-13 | Roundness measurement clamp for small-size ball parts |
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| Publication Number | Publication Date |
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| CN217980262U true CN217980262U (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221806782.4U Active CN217980262U (en) | 2022-07-13 | 2022-07-13 | Roundness measurement clamp for small-size ball parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147464A (en) * | 2023-04-14 | 2023-05-23 | 青岛迈朗格智能制造有限公司 | Quality detection equipment for automobile part production and delivery |
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2022
- 2022-07-13 CN CN202221806782.4U patent/CN217980262U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147464A (en) * | 2023-04-14 | 2023-05-23 | 青岛迈朗格智能制造有限公司 | Quality detection equipment for automobile part production and delivery |
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