CN215114367U - Device for detecting valve stem straightness - Google Patents
Device for detecting valve stem straightness Download PDFInfo
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- CN215114367U CN215114367U CN202121745406.4U CN202121745406U CN215114367U CN 215114367 U CN215114367 U CN 215114367U CN 202121745406 U CN202121745406 U CN 202121745406U CN 215114367 U CN215114367 U CN 215114367U
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- placing table
- base
- valve stem
- valve
- straightness
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Abstract
The utility model discloses a device for detecting straightness of a valve stem, which comprises a base, wherein a valve fixing component is arranged on the base, a motor base and an L-shaped bracket are arranged on one side of the valve fixing component, the L-shaped bracket comprises a stand column, a cross beam is arranged at the top of the stand column, and the stand column is provided with a guide groove along the height direction; the motor base is provided with a lead screw driven by a motor, the top of the lead screw is rotatably connected with the cross beam, the lead screw is provided with a sliding block through a nut, one end of the sliding block is in sliding fit with the guide groove, the other end of the sliding block is provided with a micrometer, a detection head of the micrometer is provided with a protective sleeve, and a free end of the protective sleeve is provided with a ball. The utility model discloses install the protective sheath of taking the ball on the detection head of amesdial, change sliding friction into rolling friction, reduced the wearing and tearing to detecting head and inflating valve.
Description
Technical Field
The utility model relates to a valve detection device technical field, in particular to a device for detecting valve rod straightness accuracy.
Background
The valve consists of a valve head and a valve rod, and the valve is specially used for inputting air into the engine and discharging combusted waste gas. From the engine structure, the engine is divided into an intake valve and an exhaust valve. The intake valve is used for sucking air into the engine to be mixed with fuel for combustion; the exhaust valve is used for discharging combusted waste gas and dissipating heat. Straightness includes both horizontal straightness and vertical limits, and any straight line offset in the horizontal direction is referred to as horizontal straightness and the vertical direction is referred to as vertical straightness. The valve is used as an important part on an engine, the straightness of the valve is very important for the normal operation of the valve, so the straightness of the valve needs to be detected in the production process of the valve, but when a traditional straightness detection device is operated, a detection head of a dial indicator is directly contacted with the valve, and the valve and the detection head are easily abraded.
Disclosure of Invention
The utility model discloses a remedy prior art not enough, provide a device for detecting valve stem straightness accuracy.
The utility model discloses a realize through following technical scheme:
a device for detecting the straightness of an air valve rod comprises a base, wherein an air valve fixing assembly is mounted on the base, a motor base and an L-shaped support are mounted on one side of the air valve fixing assembly, the L-shaped support comprises an upright post, a cross beam is mounted at the top of the upright post, and a guide groove is formed in the upright post along the height direction; the motor base is provided with a lead screw driven by a motor, the top of the lead screw is rotatably connected with the cross beam, the lead screw is provided with a sliding block through a nut, one end of the sliding block is in sliding fit with the guide groove, the other end of the sliding block is provided with a micrometer, a detection head of the micrometer is provided with a protective sleeve, and a free end of the protective sleeve is provided with a ball.
The valve fixing component is arranged on a supporting table of the base; the valve fixing assembly comprises a clamping sheet and a placing table, and a clamping groove is formed in the top of the placing table and is fixedly connected with the supporting table; the holding piece is positioned at the top of the placing table and is matched with the placing table through a guide column; the bottom of guide post is installed the separation blade, the separation blade with place and install the spring between the platform.
And the anti-abrasion piece is arranged on one surface of the clamping piece opposite to the placing table.
The clamping pieces are U-shaped.
The placing table is characterized in that connecting lugs are arranged at two ends of the placing table and are fixedly connected with the supporting table through bolts.
The two support tables are respectively connected with the connecting lugs at the two ends of the placing table.
The base is provided with a fixing hole.
The utility model discloses following technological effect has:
the utility model is provided with the protective sleeve with the ball on the detecting head of the dial indicator, changes the sliding friction into the rolling friction, and reduces the abrasion to the detecting head and the air valve; the valve is convenient to fix, can be clamped and fixed by the clamping sheet after being pushed into the clamping groove, and does not need other operations; whole device degree of automation is high, after fixing the valve, the starter motor, the amesdial alright with under the drive of motor automatic operation detect, operating personnel only need observe the amesdial can, reduced intensity of labour.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic front view of the present invention.
In the figure, 1-base, 2-supporting table, 3-spring, 4-blocking piece, 5-clamping groove, 6-placing table, 7-guide column, 8-connecting lug, 9-motor base, 10-screw rod, 11-upright column, 12-motor, 13-micrometer, 14-slide block, 15-nut, 16-beam, 17-detecting head, 18-protective sleeve, 19-air valve, 20-clamping piece, 21-fixing hole and 22-ball.
Detailed Description
The following are only embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
In the present invention, the words describing the directional relationship such as "left", "right", "inner", "outer" are only convenient for describing the embodiment, and are not considered to be limitations of the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The fixed connection mode comprises but is not limited to a connection mode known in the prior art, such as welding, screwing, clamping, interference fit, integral forming and the like; the number of the plurality is more than one.
Fig. 1 and 2 show an embodiment of the present invention. The embodiment provides a device for detecting straightness of a valve stem, which comprises a base 1, wherein four corners of the base 1 are provided with fixing holes 21, a valve fixing assembly used for fixing a valve 19 is installed on the base 1, and a motor base 9 and an L-shaped support are installed on one side of the valve fixing assembly.
The L-shaped bracket comprises an upright post 11 and a cross beam 16 arranged at the top of the upright post 11, and the upright post 11 is provided with a guide groove along the height direction thereof; a motor 12 and a vertical screw rod 10 are arranged on the motor base 9, and the screw rod 10 is driven by the motor 12; the top of the screw 10 is rotatably connected to a cross beam 16.
The screw rod 10 is provided with a nut 15, the nut 15 is fixedly provided with an L-shaped sliding block 14, one end of the sliding block 14 is in sliding fit with the guide groove, the other end of the sliding block is provided with a micrometer 13, a detection head of the micrometer 13 is fixedly provided with a protective sleeve 18, and the free end of the protective sleeve 18 is provided with a ball 22 capable of freely rotating. The cooperation of the slider 14 with the guide groove can make the operation of the slider more smooth.
The valve fixing assembly is fixedly arranged on two parallel supporting tables 2 on the base 1 through bolts, and a gap is reserved between the two supporting tables 2; the valve fixing assembly comprises a clamping piece 20 and a placing table 6 provided with four connecting lugs 8, wherein the connecting lugs 8 are arranged at two ends of the placing table and fixedly connected with the supporting table 2 through bolts; the top of the placing table 6 is provided with a U-shaped clamping groove 5 for placing the head of the air valve 19, and the placing table 6 is also provided with four guide holes; the clamping piece 20 is U-shaped, is positioned at the top of the placing table 6 and is matched with the placing table 6 through the guide column 7; separation blade 4 is installed to the bottom of guide post 7, installs spring 3 between separation blade 4 and place platform 6, and spring 3 cover promptly is on guide post 7, and one end offsets with the separation blade, and the other end offsets with placing platform 6. A resin or rubber wear-resistant sheet is further attached to the surface of the holding sheet 20 opposite to the placement table 6, so that the valve 19 is prevented from being worn in the fixing process.
When not in use, the clamping sheets 20 are contacted with the top of the placing table 6 due to the action of the springs 3; when the valve 19 is measured, the head of the valve 19 is pushed into the clamping groove 5, the clamping piece 20 fixes the valve 19 under the action of the spring 3, then the motor 12 is started, the dial indicator 12 is driven to move up and down along the screw rod 10, and the ball rolls at the rod part of the valve 19, so that the valve 19 can be measured.
Claims (7)
1. A device for detecting valve rod straightness accuracy, includes base (1), its characterized in that: the air valve fixing device is characterized in that an air valve fixing assembly is mounted on the base (1), a motor base (9) and an L-shaped support are mounted on one side of the air valve fixing assembly, the L-shaped support comprises an upright post (11), a cross beam (16) is mounted at the top of the upright post (11), and a guide groove is formed in the upright post (11) along the height direction; install lead screw (10) through motor (12) drive on motor cabinet (9), the top and crossbeam (16) of lead screw (10) rotate to be connected, slider (14) are installed through nut (15) in lead screw (10), the one end and the guide way sliding fit of slider (14), micrometer (13) are installed to the other end, install protective sheath (18) on the detection head of micrometer (13), ball (22) are installed to the free end of protective sheath (18).
2. The apparatus for detecting valve stem straightness of claim 1, wherein: the valve fixing assembly is arranged on a supporting table (2) of the base (1); the valve fixing assembly comprises a clamping sheet (20) and a placing table (6), and a clamping groove (5) is formed in the top of the placing table (6) and is fixedly connected with the supporting table (2); the placing table (6) is provided with a guide hole, and the clamping sheet (20) is positioned at the top of the placing table (6) and is matched with the placing table (6) through a guide column (7); separation blade (4) are installed to the bottom of guide post (7), install spring (3) between separation blade (4) and place platform (6).
3. The apparatus for detecting valve stem straightness according to claim 2, wherein: and an anti-abrasion sheet is arranged on one surface of the clamping sheet (20) opposite to the placing table (6).
4. The apparatus for detecting valve stem straightness according to claim 3, wherein: the clamping piece (20) is U-shaped.
5. The apparatus for detecting valve stem straightness of claim 4, wherein: the two ends of the placing table (6) are provided with connecting lugs (8), and the connecting lugs (8) are fixedly connected with the supporting table (2) through bolts.
6. An apparatus for detecting valve stem straightness as recited in claim 5, wherein: the two supporting tables (2) are respectively connected with the connecting lugs (8) at the two ends of the placing table (6).
7. The apparatus for detecting valve stem straightness according to any one of claims 1 to 6, wherein: the base (1) is provided with a fixing hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745406.4U CN215114367U (en) | 2021-07-29 | 2021-07-29 | Device for detecting valve stem straightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745406.4U CN215114367U (en) | 2021-07-29 | 2021-07-29 | Device for detecting valve stem straightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215114367U true CN215114367U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121745406.4U Active CN215114367U (en) | 2021-07-29 | 2021-07-29 | Device for detecting valve stem straightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215114367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809841A (en) * | 2023-08-30 | 2023-09-29 | 中航成飞民用飞机有限责任公司 | Inspection system for straightness of upper riveting anvil and lower riveting anvil of automatic drilling and riveting machine |
-
2021
- 2021-07-29 CN CN202121745406.4U patent/CN215114367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809841A (en) * | 2023-08-30 | 2023-09-29 | 中航成飞民用飞机有限责任公司 | Inspection system for straightness of upper riveting anvil and lower riveting anvil of automatic drilling and riveting machine |
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