CN216620887U - Checking fixture for rapidly detecting relative position of pin hole to boss excircle - Google Patents
Checking fixture for rapidly detecting relative position of pin hole to boss excircle Download PDFInfo
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- CN216620887U CN216620887U CN202123040741.7U CN202123040741U CN216620887U CN 216620887 U CN216620887 U CN 216620887U CN 202123040741 U CN202123040741 U CN 202123040741U CN 216620887 U CN216620887 U CN 216620887U
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- boss
- pin hole
- detection
- excircle
- relative position
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Abstract
The utility model relates to a detection tool for rapidly detecting the relative position of a pin hole to the excircle of a boss, belonging to the technical field of machining detection. The utility model provides a checking fixture for rapidly detecting the relative position of a pin hole to the excircle of a boss, which at least comprises a through end and a stop end, wherein the through end and the stop end are connected through a connecting column, disc-shaped detection bosses with different diameters are arranged on two sides of the connecting column, the diameter of the through end detection boss is the minimum tolerance distance from a detected workpiece pin hole to the excircle of a workpiece positioning boss, the diameter of the stop end detection boss is the maximum tolerance distance from the detected workpiece pin hole to the excircle of the workpiece positioning boss, a positioning pin is arranged at the center of the detection boss, and the diameter of the positioning pin is matched with the detected workpiece pin hole and can be clamped into the pin hole to rotate freely. The technical scheme of the utility model can not scratch the excircle of the workpiece positioning boss, and can meet the requirement of rapid large-scale detection.
Description
Technical Field
The utility model relates to a detection tool for rapidly detecting the relative position of a pin hole to the excircle of a boss, belonging to the technical field of machining detection.
Background
The camshaft is an important part in an engine transmission system, and usually, the end face of the camshaft is provided with a boss and a pin hole which has certain relative position requirements on the excircle of the boss. In the manufacturing process, the relative position of the pin hole to the outer circle of the boss is always checked on line. Usually, a special comprehensive checking tool or a three-coordinate detecting instrument is used for checking. When the special comprehensive detection tool is used for detection, the detection tool can scratch the outer circular surface of the boss, and products with strict requirements on appearance are not suitable for detection by the method. The detection speed is slow through the inspection of the three-coordinate detector, time is wasted, the production quality cannot be effectively controlled in real time, the production efficiency is not high, and the requirement of large-scale continuous production cannot be met.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides the checking fixture for quickly detecting the relative position of the pin hole to the outer circle of the boss.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an examine utensil of short-term test pinhole to boss excircle relative position, is at least including leading to the end and ending the end, lead to the end and pass through the spliced pole and connect, the both sides of spliced pole are equipped with the discoid detection boss of different diameters, wherein lead to the diameter that the end detected the boss for being detected work piece pinhole to work piece location boss excircle minimum tolerance distance, the diameter that ends detected the boss is for being detected work piece pinhole to work piece location boss excircle maximum tolerance distance, the central point that detects the boss puts and is equipped with the locating pin, the diameter of locating pin with be detected work piece pinhole phase-match, and can block free rotation in the pinhole into.
The connecting column is internally provided with a threaded blind hole matched with the screw rod, and the connecting column of the through end and the stop end is connected through the screw rod.
The shape of the through end detection boss is different from that of the end stop detection boss.
The through end and the stop end are combined according to different conditions of the workpiece.
According to the technical scheme, the gauge for rapidly detecting the relative position of the pin hole to the outer circle of the boss is an integral gauge formed by connecting the independent through end and the stop end through the connecting column, and the diameters of the positioning pins at the bottoms of the through end part and the stop end part are determined according to the diameter and tolerance requirements of the pin hole; determining the outer diameter sizes of the through end and the stop end according to the size and tolerance requirements between the center of the pin hole and the excircle of the boss of the workpiece, wherein the minimum tolerance distance between the center of the pin hole and the excircle of the boss is the size of the excircle of the through end, and the maximum tolerance distance between the center of the pin hole and the excircle of the boss is the size of the excircle of the stop end; the detection boss of the detection tool is a disc-shaped boss with an arc, so that the detection tool avoids scratching the excircle of the positioning boss of the workpiece in the use process, and the detection tool adopts the combination of the through end and the dead end to form the integral detection tool, and the detection boss of the through end and the detection boss of the dead end are rapidly distinguished by adopting different shapes, so that the detection tool is suitable for large-scale continuous production, and can select the corresponding no-go gauge and the no-go gauge according to different workpiece requirements, thereby ensuring the detection precision.
Drawings
FIG. 1 is a schematic plane structure diagram of a gauge for rapidly detecting the relative position of a pin hole to an outer circle of a boss provided by the utility model.
FIG. 2 is a schematic structural assembly diagram of the gauge for rapidly detecting the relative position of the pin hole to the boss outer circle provided by the utility model.
FIG. 3 is a schematic diagram of a detection mode of the detection tool for rapidly detecting the relative position of the pin hole to the outer circle of the boss provided by the utility model.
In the figure: 1-through end; 2-end stopping; 3-connecting a column; 4-through end detection boss; 5-positioning pins; 6-end detection boss; 7-a screw; 8-detected workpiece; 9-pin holes; 10-workpiece positioning boss.
Detailed Description
The following describes in detail a gauge for rapidly detecting the relative position of a pin hole to an outer circle of a boss according to the present invention with reference to the accompanying drawings and specific embodiments, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a gauge for rapidly detecting the relative position of a pin hole to the excircle of a boss, which comprises a through end 1 and a stop end 2, wherein the through end 1 and the stop end 2 are connected through a connecting column 3, two sides of the connecting column 3 are provided with a disc-shaped through end detection boss 4 and a disc-shaped stop end detection boss 6 with different diameters, and as shown in figure 1, the through end detection boss 4 and the stop end detection boss 6 are different in shape. In this example, the through-end detection boss 4 is a disk from which one minor arc is removed, and the end-stop detection boss 6 is a disk from which two minor arcs are removed.
The diameter of the through end detection boss 4 is the minimum tolerance distance from the pin hole 9 of the detected workpiece 8 to the excircle of the workpiece positioning boss 10, the diameter of the end stop detection boss 6 is the maximum tolerance distance from the pin hole 9 of the detected workpiece 8 to the excircle of the workpiece positioning boss 10, the through end 1 is connected with the connecting column 3 of the end stop 2 through the screw 7, a threaded blind hole matched with the screw 7 is formed in the connecting column 3, as shown in fig. 2, the through end 1 and the end stop 2 are combined according to different requirements of the workpiece 8, and the combined inspection device is used for replacing the through end 1 or the end stop 2 according to the abrasion condition.
The central positions of the detection bosses 4 and 6 are provided with positioning pins 5, the diameters of the positioning pins 5 are matched with pin holes 9 of detected workpieces 8, and the positioning pins can be clamped into the pin holes 9 to rotate freely. When a workpiece is inspected, as shown in fig. 3, firstly, the through end 1 is inserted into the pin hole 9 of the workpiece 8 to be inspected, the combined inspection tool is rotated, the through end 1 can rotate freely without interfering with the excircle of the positioning boss 10 of the workpiece, the stop end 2 is inserted into the pin hole 9 of the workpiece 8 to be inspected, and the stop end 2 cannot rotate freely, so that the position of the pin hole 9 is judged to be qualified; and if the through end 1 can not rotate freely or the stop end 2 can rotate freely, judging that the position of the pin hole 9 is unqualified, and finishing the workpiece inspection.
Claims (4)
1. The utility model provides a short-term test pinhole is to examining utensil of boss excircle relative position, includes at least that lead to end and end, its characterized in that: lead to end and pass through the spliced pole and connect, the both sides of spliced pole are equipped with the discoid detection boss of different diameters, wherein lead to the diameter that detects the boss for being detected work piece pinhole to work piece location boss excircle minimum tolerance distance, end the diameter that detects the boss for being detected work piece pinhole to work piece location boss excircle maximum tolerance distance, the central point that detects the boss puts and is equipped with the locating pin, the diameter of locating pin with be detected work piece pinhole phase-match, and can block free rotation in the pinhole into.
2. The inspection device for rapidly detecting the relative position of the pin hole to the outer circle of the boss according to claim 1, is characterized in that: the connecting column is internally provided with a threaded blind hole matched with the screw rod, and the connecting column of the through end and the stop end is connected through the screw rod.
3. The inspection device for rapidly detecting the relative position of the pin hole to the outer circle of the boss according to claim 1, is characterized in that: the shape of the through end detection boss is different from that of the end stop detection boss.
4. The inspection device for rapidly detecting the relative position of the pin hole to the outer circle of the boss according to claim 1, is characterized in that: the through end and the stop end are combined according to different conditions of the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040741.7U CN216620887U (en) | 2021-12-06 | 2021-12-06 | Checking fixture for rapidly detecting relative position of pin hole to boss excircle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040741.7U CN216620887U (en) | 2021-12-06 | 2021-12-06 | Checking fixture for rapidly detecting relative position of pin hole to boss excircle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216620887U true CN216620887U (en) | 2022-05-27 |
Family
ID=81701896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123040741.7U Active CN216620887U (en) | 2021-12-06 | 2021-12-06 | Checking fixture for rapidly detecting relative position of pin hole to boss excircle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216620887U (en) |
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2021
- 2021-12-06 CN CN202123040741.7U patent/CN216620887U/en active Active
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