Hole site testing fixture

Abstract

The utility model provides a hole site gauge, which comprises a central plate, an annular plate, a plurality of positioning pins and a limiting assembly, the central plate is an annular flat plate, an inner hole of the annular plate is rotatably connected with the periphery of the central plate, and the bottom surface of the annular plate and the bottom surface of the central plate are coplanar. A plurality of strip-shaped through holes are formed in the center plate and the annular plate in a surrounding mode, the extending direction of the strip-shaped through holes intersects with the axis of the center plate, first counter bores are formed in the downward ends of the strip-shaped through holes, and the diameter of the positioning pins is matched with the width of the strip-shaped through holes. The positioning ring matched with the first counterbore is fixedly arranged on the positioning pin; a fixing nut is arranged at the other end, far away from the positioning ring, of the positioning pin; the limiting assembly is used for enabling the center plate and the annular plate to rotate or be fixed. According to the utility model, the problem that the mounting hole cannot be adjusted and needs to be customized is solved, and the universality of the gauge is improved.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and in particular to a hole position inspection tool. Background Technology

[0002] Hole position gauges are specialized measuring tools used to inspect the position, size, and coaxiality of holes on workpieces. They are widely used in machining, automotive manufacturing, aerospace, and other fields, playing a crucial role in ensuring product quality and assembly accuracy. A typical hole position gauge includes a positioning plate and positioning pins. After the positioning pins are fixed to the positioning plate, they are placed on the workpiece to check if they can be inserted into the corresponding mounting holes. However, when inspecting other types of workpieces, specific positioning plates are required. If there are many types of workpieces and the production volume is small, manufacturing corresponding positioning plates increases costs and is uneconomical. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a hole position gauge, which solves the problem that the mounting holes on the positioning plate cannot be adjusted and require customization in existing technologies.

[0004] According to an embodiment of this utility model, a hole position gauge includes a center plate, an annular plate, a plurality of positioning pins, and a limiting component. The center plate is an annular flat plate. The inner hole of the annular plate is rotatably connected to the outer circumference of the center plate, and the bottom surface of the annular plate and the bottom surface of the center plate are coplanar. A plurality of strip-shaped through holes are arranged around the center plate and the annular plate. The extending direction of the strip-shaped through holes intersects the axis of the center plate. A first countersunk hole is provided at the downward end of the strip-shaped through hole. The diameter of the positioning pin is adapted to the width of the strip-shaped through hole. A positioning ring adapted to the first countersunk hole is fixedly provided on the positioning pin. A fixing nut is provided on the other side of the positioning pin opposite to the center plate where the positioning ring is provided. The limiting component is used to allow the center plate and the annular plate to rotate or be fixed.

[0005] The technical principle of this utility model is as follows: This utility model adjusts the position by making the positioning pin rotate radially relative to the center of the center plate and move within the strip-shaped through hole.

[0006] Preferably, a grip handle is fixedly provided on the top surface of the center plate.

[0007] Preferably, the outer periphery of the center plate is provided with angle markings; the side of the strip-shaped through hole is provided with length markings.

[0008] Preferably, the limiting assembly includes a fixing bolt and a connecting ring. A second countersunk hole is provided at the upward-facing end of the annular plate. The connecting ring is fixedly sleeved on the outside of the central plate and rotatably disposed within the second countersunk hole. A threaded hole is provided on the connecting ring, and the fixing bolt is connected to the threaded hole of the connecting ring. A cover plate is fixedly disposed above the second countersunk hole on the annular plate. A gap is provided between the inner hole of the cover plate and the outer periphery of the central plate, and the fixing bolt is located within the gap area.

[0009] Preferably, the central plate and the annular plate are made of transparent material.

[0010] The cover plate and the annular plate are connected by bolts.

[0011] Compared with existing technologies, this utility model has the following advantages: First, it can meet the needs of multi-hole position detection. The center plate and the annular plate are provided with a surrounding strip-shaped through hole, the extension line of which intersects the axis of the center plate. The positioning pin can be installed in different positions to simulate various hole position layouts, adapt to different specifications of products, and reduce the cost and time of inspection tool manufacturing. Second, it is easy to operate. The diameter of the positioning pin is adapted to the strip-shaped through hole. It has a positioning ring and a fixing nut. During installation, the positioning ring is inserted into the first countersunk hole. During adjustment, the nut is loosened, the positioning pin is moved, and then tightened. It is simple and easy to understand, and the hole position can be quickly judged to determine whether it is compliant during inspection. Third, it is accurate in detection. The center plate and the annular plate are rotatably connected, the structure is stable, the positioning pin and the strip-shaped through hole have high precision, and the positioning ring and nut ensure accurate positioning, which can simulate the hole position with high precision. Fourth, it has strong versatility. The strip-shaped through hole is flexible, the position of the positioning pin is adjustable, it can adapt to different sizes of products, and the positioning pin can be adjusted when the hole position layout changes. It has good scalability. In addition, it can also reduce the number of inspection tools, extend the service life, and reduce the enterprise's procurement and maintenance costs. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention.

[0013] Figure 2 This is a connection diagram of the present invention.

[0014] In the above attached figures: 1. Handle; 2. Center plate; 3. Annular plate; 4. Strip-shaped through hole; 5. First countersunk hole; 6. Fixing nut; 7. Cover plate; 8. Fixing bolt; 9. Connecting ring; 10. Second countersunk hole; 11. Positioning pin. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , 2As shown in the figure, this utility model embodiment proposes a hole position gauge, including a center plate 2, an annular plate 3, a plurality of positioning pins 11, and a limiting component. The center plate 2 is an annular flat plate. The inner hole of the annular plate 3 is rotatably connected to the outer periphery of the center plate 2, and the bottom surface of the annular plate 3 is coplanar with the bottom surface of the center plate 2. A plurality of strip-shaped through holes 4 are arranged around the center plate 2 and the annular plate 3. The extension direction of the strip-shaped through holes 4 intersects the axis of the center plate 2. Sufficient distance is left between the two ends of the strip-shaped through holes 4 to ensure the structural strength of the center plate 2 and the annular plate 3. A first countersunk hole 5 is provided at the downward end of the strip-shaped through hole 4. The first countersunk hole 5 is also a long strip structure. The diameter of the positioning pin 11 is adapted to the width of the strip-shaped through hole 4, so that the positioning pin 11 can move within the strip-shaped through hole 4. A positioning ring adapted to the first countersunk hole 5 is fixedly provided on the positioning pin 11. The positioning pin 11 has a fixing nut 6 on the other side of the positioning ring relative to the center plate 2. The upper section of the positioning pin 11 has a thread that matches the fixing nut 6. The lower section of the positioning pin 11 is sized to match the pin hole on the workpiece. The insertion of the lower section of the positioning pin 11 into the workpiece indicates that the pin hole is in a normal state. The limiting component is used to allow the center plate 2 and the annular plate 3 to rotate or be fixed. When inspecting the workpiece, the positioning pin 11 is inserted into the pin hole on the workpiece that has been inspected by the coordinate measuring machine, and then the fixing nut 6 is tightened to fix the positioning pin 11, the center plate 2, and the annular plate 3 relative to each other. When it is necessary to adjust the position of the positioning pin 11, the annular plate 3 and the center plate 2 can be rotated relative to each other, and the position of the strip-shaped through hole 4 will rotate. At the same time, the positioning pin 11 can move along the strip-shaped through hole 4, further improving the degree of freedom.

[0017] Preferably, a grip handle 1 is fixedly provided on the top surface of the center plate 2, which makes it easy for the operator to operate. During inspection, the center plate 2 and the annular plate 3 are placed directly on the workpiece.

[0018] Preferably, the outer periphery of the center plate 2 is provided with angle graduations, and the side of the strip-shaped through hole 4 is provided with length graduations. Operators can use CAD calculations to determine the relative positions of the center plate 2 and the annular plate 3, as well as the relative positions of the locating pin 11 and the strip-shaped through hole 4, when inspecting the workpiece.

[0019] Preferably, the limiting component includes a fixing bolt 8, and the center plate 2 is provided with a threaded hole that runs vertically through the center. The fixing bolt 8 is adapted to the threaded hole, and the end of the fixing bolt 8 abuts against the annular plate 3.

[0020] like Figure 2As shown, the limiting assembly includes a fixing bolt 8 and a connecting ring 9. A second countersunk hole 10 is provided at the upward-facing end of the inner hole of the annular plate 3. The connecting ring 9 is fixedly sleeved on the outside of the center plate 2 and rotatably disposed within the second countersunk hole 10. The connecting ring 9 has a threaded hole extending vertically through it, and the fixing bolt 8 connects to the threaded hole of the connecting ring 9. A cover plate 7 is fixedly disposed above the second countersunk hole 10 on the annular plate 3. A gap is provided between the inner hole of the cover plate 7 and the outer periphery of the center plate 2, and the fixing bolt 8 is located within the gap area. In this embodiment, the inner diameter of the connecting ring 9 matches the outer diameter of the center plate 2, and the thickness of the connecting ring 9 matches the depth of the second countersunk hole 10. When the fixing bolt 8 is rotated, it will move axially. After the end of the fixing bolt 8 and the annular plate 3 are locked together, the center plate 2 and the annular plate 3 remain relatively fixed.

[0021] Preferably, the center plate 2 and the annular plate 3 are made of transparent material, making it easy for workers to check whether the positioning pin 11 is aligned with the mounting hole on the workpiece. In this embodiment, the center plate 2 has a positioning hole at its center, which is used for positioning with the workpiece center column.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hole position gauge, characterized in that: The device includes a center plate (2), an annular plate (3), several positioning pins (11), and a limiting component. The center plate (2) is a circular annular plate. The inner hole of the annular plate (3) is rotatably connected to the outer circumference of the center plate (2), and the bottom surface of the annular plate (3) is coplanar with the bottom surface of the center plate (2). Several strip-shaped through holes (4) are arranged around the center plate (2) and the annular plate (3). The extension direction of the strip-shaped through holes (4) intersects the axis of the center plate (2). A first countersunk hole (5) is provided at the downward end of the strip-shaped through hole (4). The diameter of the positioning pin (11) is adapted to the width of the strip-shaped through hole (4). A positioning ring adapted to the first countersunk hole (5) is fixedly provided on the positioning pin (11). A fixing nut (6) is provided on the other side of the positioning pin (11) opposite to the center plate (2) where the positioning ring is provided. The limiting component is used to make the center plate (2) and the annular plate (3) rotate or be fixed.

2. The hole position gauge as described in claim 1, characterized in that: A grip handle (1) is fixedly provided on the top surface of the center plate (2).

3. The hole position gauge as described in claim 1, characterized in that: Angle scales are provided on the outer periphery of the center plate (2); length scales are provided on the side of the strip-shaped through hole (4).

4. A hole position gauge as described in claim 1, characterized in that: The limiting assembly includes a fixing bolt (8) and a connecting ring (9). The inner end of the annular plate (3) facing upward is provided with a second countersunk hole (10). The connecting ring (9) is fixedly sleeved on the outside of the center plate (2). The connecting ring (9) is rotatably disposed in the second countersunk hole (10). The connecting ring (9) is provided with a threaded hole that runs vertically through it. The fixing bolt (8) is connected to the threaded hole of the connecting ring (9). A cover plate (7) is fixedly disposed on the annular plate (3) above the second countersunk hole (10). A gap is provided between the inner hole of the cover plate (7) and the outer periphery of the center plate (2). The fixing bolt (8) is located in the gap area.

5. A hole position gauge as described in claim 1, characterized in that: The central plate (2) and the annular plate (3) are made of transparent material.

6. A hole position gauge as described in claim 4, characterized in that: The cover plate (7) and the annular plate (3) are connected by bolts.

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