Detection tool for detecting location degree of positioning pin hole

Abstract

The utility model relates to the technical field of detection tools, in particular to a detection tool for detecting the location degree of a positioning pin hole, which comprises a shell, an inner cavity is arranged in the shell, the inner top and the inner bottom of the inner cavity are both fixedly connected with rails, the inner part of the inner cavity is movably connected with a movable plate, and the movable plate is fixedly connected with the rails. The upper surface and the lower surface of the moving plate are fixedly connected with metal blocks, the metal blocks are located in the track, a through hole is formed in the moving plate, the upper surface of the moving plate is fixedly connected with a metal ring, the through hole is located in the metal ring, the top of the metal ring is fixedly connected with a first electrode plate, and the top of the first electrode plate is fixedly connected with a second electrode plate. And a moving block is arranged in the through hole, a second electrode plate is fixedly connected to the lower surface of the moving block, and the second electrode plate is located over the first electrode plate. According to the utility model, the location degree of the positioning pin hole can be automatically detected through the on-off of the circuit.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling, and in particular to a tooling for testing the position accuracy of positioning pin holes. Background Technology

[0002] Position tolerance refers to the allowable variation of the actual position of a measured feature relative to a reference feature from its ideal position. It is used to describe the positional accuracy of points, lines, surfaces, and other features on a part in space, and is one of the important indicators for measuring the machining and assembly accuracy of parts.

[0003] When assembling a workpiece, it is necessary to determine whether the position of the locating pin hole is accurate in order to ensure that the workpiece can be assembled normally. The existing method of checking the position of the locating pin hole is usually done manually using a ruler, which relies on manual judgment and is relatively cumbersome. Utility Model Content

[0004] In view of this, the present invention provides a gauge for detecting the position of a positioning pin hole. The main technical problem to be solved is that the position of the positioning pin hole can be automatically detected by switching the circuit on and off.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gauge for detecting the position of a positioning pin hole, comprising a housing, an inner cavity inside the housing, a track fixedly connected to the top and bottom of the inner cavity, a movable plate movably connected inside the inner cavity, metal blocks fixedly connected to the upper and lower surfaces of the movable plate, the metal blocks being located inside the track, a through hole inside the movable plate, a metal ring fixedly connected to the upper surface of the movable plate, the through hole being located inside the metal ring, a first electrode plate fixedly connected to the top of the metal ring, a movable block being disposed inside the through hole, and a second electrode plate fixedly connected to the lower surface of the movable block, the second electrode plate being located directly above the first electrode plate.

[0006] By adopting the above technical solution, the circuit can be connected by the contact of the first electrode plate and the second electrode plate. When in use, the total length of the outer shell and the moving plate is adjusted, and the gauge is placed on the workpiece to be inspected. When the moving block is above the positioning pin hole, the moving block will move downward under the action of gravity and spring. At this time, the first electrode plate and the second electrode plate are in contact, and the circuit is connected. When the moving block is not above the positioning pin hole, the lower part of the moving block will be blocked by the workpiece, and the moving block will not move relative to it. At this time, the first electrode plate and the second electrode plate will not be in contact, and the circuit is broken. Thus, it is possible to determine whether the positioning pin hole on the workpiece is misaligned.

[0007] As a further description of the above technical solution:

[0008] A first wire is installed between the metal block and the metal ring on the lower surface of the movable plate, and a second wire is installed between the metal block and the movable block on the upper surface of the movable plate.

[0009] By adopting the above technical solution, it is easy to connect the circuit.

[0010] As a further description of the above technical solution:

[0011] A spring is installed on the outside of the movable block. The spring is located inside the metal ring, and the bottom of the spring is fixedly connected to the upper surface of the movable plate.

[0012] By adopting the above technical solution, the spring will pull the moving block downwards, so that the moving block can move downwards after reaching the position pin hole, so that the first electrode plate and the second electrode plate can come into contact.

[0013] As a further description of the above technical solution:

[0014] A first scale is fixedly connected to the upper surface of the outer shell, and a second scale is fixedly connected to the upper surface of the movable plate.

[0015] By adopting the above technical solution, it is easy to determine the total length of the outer shell and the moving plate.

[0016] As a further description of the above technical solution:

[0017] An adjusting screw is threaded to the right end of the housing, and the left end of the adjusting screw is movably connected to the right end of the movable plate.

[0018] By adopting the above technical solution, rotating the adjusting screw can control the movement of the moving plate inside the housing, making it easy to adjust the total length of the housing and the moving plate.

[0019] As a further description of the above technical solution:

[0020] An indicator light is fixedly connected to the top of the housing, and the positive and negative terminals of the indicator light are respectively connected to the two tracks.

[0021] By adopting the above technical solution, when the circuit is turned on, current flows through the indicator light and the indicator light illuminates, making it easier to determine the position of the locating pin hole on the workpiece.

[0022] As a further description of the above technical solution:

[0023] A power source is fixedly connected to the back of the outer casing, and the positive and negative terminals of the power source are respectively connected to the two rails.

[0024] By adopting the above technical solution, the inspection tool is powered by a power source, which facilitates its use.

[0025] By employing the above technical solution, the inspection tool for detecting the position accuracy of positioning pin holes of this utility model has at least the following beneficial effects:

[0026] 1. Compared with the prior art, this inspection tool for detecting the position of the positioning pin hole can connect the circuit through the contact of the first electrode plate and the second electrode plate. In use, the total length of the outer shell and the moving plate is adjusted, and the inspection tool is placed on the workpiece to be inspected. When the moving block is above the positioning pin hole, the moving block will move downward under the action of gravity and spring. At this time, the first electrode plate and the second electrode plate are in contact, and the circuit is connected. When the moving block is not above the positioning pin hole, the lower part of the moving block will be blocked by the workpiece, and the moving block will not move relative to the workpiece. At this time, the first electrode plate and the second electrode plate will not be in contact, and the circuit is broken, so as to determine whether the position of the positioning pin hole on the workpiece is misaligned.

[0027] 2. Compared with the prior art, this inspection tool for detecting the position of the positioning pin hole is powered by a power supply. When the circuit is turned on, current flows through the indicator light and the indicator light illuminates, making it easier to determine the position of the positioning pin hole on the workpiece. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a gauge for detecting the position of a positioning pin hole proposed in this utility model;

[0029] Figure 2 This is a cross-sectional view of the internal structure of a gauge for detecting the position of a positioning pin hole proposed in this utility model;

[0030] Figure 3 This utility model proposes a gauge for detecting the position accuracy of positioning pin holes. Figure 3 Enlarged view of the structure at point A in the middle;

[0031] Figure 4 This is an exploded view of a gauge for detecting the position of a positioning pin hole proposed in this utility model.

[0032] Legend:

[0033] 1. Outer shell; 2. Track; 3. Moving plate; 4. Metal block; 5. Through hole; 6. Metal ring; 7. First electrode plate; 8. Moving block; 9. Second electrode plate; 10. Spring; 11. First scale; 12. Second scale; 13. Adjusting screw; 14. Indicator light; 15. Power supply. Detailed Implementation

[0034] Reference Figure 1-4This utility model provides a gauge for detecting the position accuracy of a positioning pin hole: It includes a housing 1, with an inner cavity inside the housing 1. Tracks 2 are fixedly connected to the top and bottom of the inner cavity. A movable plate 3 is movably connected inside the inner cavity. Metal blocks 4 are fixedly connected to the upper and lower surfaces of the movable plate 3, located inside the track 2. A through hole 5 is provided inside the movable plate 3. A metal ring 6 is fixedly connected to the upper surface of the movable plate 3. A protrusion is provided at the bottom of the metal ring 6, extending to the bottom of the movable plate 3. The through hole 5 is located inside the metal ring 6. A first electrode plate 7 is fixedly connected to the top of the metal ring 6. A movable block 8 is provided inside the through hole 5. The lower surface of the movable block 8 is fixedly connected to the second electrode plate 9, and the second electrode plate 9 is located directly above the first electrode plate 7. When in use, the total length of the outer shell 1 and the movable plate 3 is adjusted, and the inspection tool is placed on the workpiece to be inspected. When the movable block 8 is above the positioning pin hole, the movable block 8 will move downward under the action of gravity and spring 10. At this time, the first electrode plate 7 and the second electrode plate 9 are in contact, and the circuit is connected. When the movable block 8 is not above the positioning pin hole, the lower part of the movable block 8 will be blocked by the workpiece, and the movable block 8 will not move relative to it. At this time, the first electrode plate 7 and the second electrode plate 9 will not be in contact, and the circuit is disconnected, so as to determine whether the positioning pin hole on the workpiece is misaligned.

[0035] A first wire is installed between the metal block 4 on the lower surface of the movable plate 3 and the metal ring 6. A second wire is installed between the metal block 4 on the upper surface of the movable plate 3 and the movable block 8. An indicator light 14 is fixedly connected to the top of the outer shell 1. The positive and negative terminals of the indicator light 14 are connected to the two rails 2 respectively. When the circuit is turned on, current flows through the inside of the indicator light 14, and the indicator light 14 lights up, which makes it easier to determine the position of the positioning pin hole on the workpiece. A power supply 15 is fixedly connected to the back of the outer shell 1. The positive and negative terminals of the power supply 15 are connected to the two rails 2 respectively, and the power supply 15 supplies power to the inspection tool.

[0036] A spring 10 is installed on the outside of the movable block 8. The spring 10 is located inside the metal ring 6, and the bottom of the spring 10 is fixedly connected to the upper surface of the movable plate 3. The spring 10 will pull the movable block 8 downward, so that the movable block 8 can move downward after reaching the position pin hole, so that the first electrode plate 7 and the second electrode plate 9 can come into contact.

[0037] A first scale 11 is fixedly connected to the upper surface of the outer casing 1, and a second scale 12 is fixedly connected to the upper surface of the movable plate 3, which facilitates the determination of the total length of the outer casing 1 and the movable plate 3. An adjusting screw 13 is threadedly connected to the right end of the outer casing 1, and the left end of the adjusting screw 13 is movably connected to the right end of the movable plate 3. Rotating the adjusting screw 13 can control the movement of the movable plate 3 inside the outer casing 1, which facilitates the adjustment of the total length of the outer casing 1 and the movable plate 3.

[0038] Working principle: When in use, adjust the total length of the outer shell 1 and the moving plate 3, and place the inspection tool on the workpiece to be inspected. When the moving block 8 is above the positioning pin hole, the moving block 8 will move downward under the action of gravity and spring 10. At this time, the first electrode plate 7 and the second electrode plate 9 will be in contact, and the circuit will be connected. When the moving block 8 is not above the positioning pin hole, the lower part of the moving block 8 will be blocked by the workpiece, and the moving block 8 will not move relative to the workpiece. At this time, the first electrode plate 7 and the second electrode plate 9 will not be in contact, and the circuit will be disconnected, so as to determine whether the positioning pin hole on the workpiece is misaligned.

[0039] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gauge for detecting the location of a pin hole, comprising a housing (1), characterised in that: The inside of the shell (1) is provided with an inner cavity, the inner top and inner bottom of the inner cavity are fixedly connected with tracks (2), the inner cavity is movably connected with a moving plate (3), the upper surface and the lower surface of the moving plate (3) are fixedly connected with metal blocks (4), the metal blocks (4) are located in the tracks (2), the moving plate (3) is provided with a through hole (5) in the inside, the upper surface of the moving plate (3) is fixedly connected with a metal ring (6), the through hole (5) is located in the inside of the metal ring (6), the top of the metal ring (6) is fixedly connected with a first electrode sheet (7), the inside of the through hole (5) is provided with a moving block (8), the lower surface of the moving block (8) is fixedly connected with a second electrode sheet (9), and the second electrode sheet (9) is located directly above the first electrode sheet (7).

2. The gage of claim 1, wherein: The metal blocks (4) and the metal ring (6) between the lower surface of the moving plate (3) are provided with a first lead wire, and the metal blocks (4) and the moving block (8) between the upper surface of the moving plate (3) are provided with a second lead wire.

3. The gage of claim 1 wherein: The outer side of the moving block (8) is provided with a spring (10), the spring (10) is located in the inside of the metal ring (6), and the bottom of the spring (10) is fixedly connected with the upper surface of the moving plate (3).

4. The gage of claim 1 wherein: The upper surface of the shell (1) is fixedly connected with a first scale (11), and the upper surface of the moving plate (3) is fixedly connected with a second scale (12).

5. The gage of claim 1 wherein: The right side end of the shell (1) is threadedly connected with an adjusting screw (13), and the left side end of the adjusting screw (13) is movably connected with the right side end of the moving plate (3).

6. The gage of claim 1 wherein: The top of the shell (1) is fixedly connected with an indicating lamp (14), and the positive and negative electrodes of the indicating lamp (14) are connected with two tracks (2) respectively.

7. The gage of claim 1 wherein: The back of the shell (1) is fixedly connected with a power supply (15), and the positive and negative electrodes of the power supply (15) are connected with two tracks (2) respectively.

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