An aperture detection device

Abstract

This utility model discloses an aperture detection device, including a rod body with a detection rod for detecting a hole in a component. The detection rod is coaxially arranged with the hole, and its outer diameter is the minimum tolerance diameter of the hole. The rod body is axially movable to move the detection rod closer to or further away from the hole, and it is also rotatable along its own axis. This utility model provides an aperture detection device that reduces false detections.

Description

Technical Field

[0001] This utility model relates to the field of hole detection equipment technology, and more specifically, to a hole diameter detection device. Background Technology

[0002] Currently, welded parts require fasteners for fixation. Large welded parts often have numerous holes. To facilitate inspection, the welded parts are typically placed on an inspection table, and multiple hole diameters are inspected using a gon gauge already installed on the table. However, when using commonly used gon gauges, if the hole diameter is within its maximum tolerance range, the cylindricity of both the hole and the gauge can make insertion difficult. These maximum tolerance hole diameters are still considered acceptable, but they will trigger an alarm and be rejected by the operator, reducing operational efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an aperture detection device that reduces false detections.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hole diameter detection device, comprising a rod body, the rod body including a detection rod, the detection rod being used to detect the hole to be detected of the component to be detected, the detection rod being coaxially arranged with the hole to be detected, the outer diameter of the detection rod being the minimum tolerance diameter of the hole to be detected, the rod body being able to move axially so that the detection rod is close to or away from the hole to be detected, and the rod body being able to rotate along its own axis.

[0005] The present invention is further configured to include a movable seat, which is axially movable along the rod body. The movable seat has a countersunk hole through which the rod body passes. A slider is slidably connected to the inner wall of the countersunk hole. The slider is axially movable along the inner wall of the countersunk hole. The slider is rotatably connected to the rod body, and the rod body passes through the slider. A pressure plate is installed on the movable seat, through which the rod body passes. A spring is installed in the countersunk hole, with one end of the spring abutting against the pressure plate and the other end abutting against the slider.

[0006] The present invention is further configured to include a base plate, on which a slide rail is mounted, and a movable seat is slidably connected to the slide rail.

[0007] The present invention is further configured such that a connecting block is mounted on the movable base, and a driving component is connected to the connecting block.

[0008] The present invention is further configured to include a shaft, which is rotatable along its own axis. A damping cylinder one is installed on the outer wall of the shaft, and a damping cylinder two is installed on the outer wall of the shaft. The axial direction of the damping cylinder one is parallel to that of the damping cylinder two. The outer wall of the damping cylinder one abuts against the outer wall of the damping cylinder two around the circumference. When the damping cylinder one rotates, it drives the damping cylinder two to rotate through friction.

[0009] The present invention is further configured such that the inner peripheral wall of the damping cylinder II is fitted with the outer peripheral wall of the rod, the inner peripheral wall of the damping cylinder II is provided with a plurality of grooves, the grooves are evenly distributed along the circumference of the damping cylinder II, and the outer peripheral wall of the rod is provided with protrusions corresponding to the grooves one by one, the protrusions of the rod being inserted into the grooves.

[0010] The present invention is further configured to include a shaft, a connecting plate rotatably connected to the shaft, and a motor connected to the shaft.

[0011] The present invention is further configured such that the rod body has an end face, the end face is located at the end of the detection rod close to the rod body, and the outer diameter of the end face is larger than the maximum tolerance diameter of the hole to be detected.

[0012] The present invention is further configured such that a bearing is installed between the slider and the rod.

[0013] In summary, this utility model has the following beneficial effects:

[0014] When the testing rod is inserted into the hole to be tested, the rod rotates back and forth slowly. When the hole to be tested is close to the minimum insertable diameter of the testing rod, that is, when the testing rod is close to the minimum tolerance diameter, the testing rod can also be inserted into the hole under the action of rotation, so as to reduce the phenomenon of false detection. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an embodiment;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a cross-sectional view of the fit between the rod and the second damping cylinder in the embodiment.

[0018] Reference numerals: base plate 1, slide rail 11, motor 12, connecting plate 13, shaft 14, damping cylinder one 141, drive component 15, connecting block 151, moving seat 2, countersunk hole 21, spring 211, pressure plate 22, slider 3, bearing 31, rod body 4, end face 41, detection rod 42, damping cylinder two 43, groove 431, component to be tested 5, hole to be tested 51. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-3As shown, this embodiment discloses an aperture detection device, including a base plate 1, a slide rail 11 mounted on the base plate 1, and a movable seat 2 slidably connected to the slide rail 11. Figure 1 This is a top-down sectional view. The base plate 1 is a plate-like structure and is placed flat on the worktable.

[0021] like Figure 3 As shown, the movable seat 2 has a countersunk hole 21, and a pressure plate 22 is installed on the movable seat 2. The pressure plate 22 blocks the countersunk hole 21. A rod 4 is inserted into the pressure plate 22, passing through the countersunk hole 21 and extending out of the movable seat 2. The rod 4 includes a detection rod 42 extending out of the movable seat 2 and away from the pressure plate 22. The detection rod 42 is used to detect the hole 51 of the component to be tested 5. The detection rod 42 is coaxially arranged with the hole 51. The component to be tested 5 is clamped on the fixture. If the detection rod 42 is significantly misaligned with the axis of the hole 51 during testing, the detection rod 42 will not be able to be inserted into the hole 51, meaning that the positional tolerance of the hole 51 does not meet the requirements. The outer diameter of the detection rod 42 is the minimum tolerance diameter of the hole 51. When the detection rod 42 can be inserted into the hole 51, it indicates that the hole 51 is qualified.

[0022] like Figure 3 As shown, the rod 4 can move axially to bring the detection rod 42 closer to or further away from the hole 51 to be detected, and the rod 4 can rotate along its own axis. Specifically, as... Figure 1 As shown, the movable base 2 is equipped with a connecting block 151, which is connected to a driving component 15. Driven by the driving component 15, the movable base 2 moves axially along the rod 4. Figure 3 As shown, a slider 3 is slidably connected to the inner wall of the countersunk hole 21. The slider 3 can move axially along the inner wall of the countersunk hole 21. A spring 211 is installed inside the countersunk hole 21. One end of the spring 211 abuts against the pressure plate 22, and the other end abuts against the slider 3. The slider 3 is rotatably connected to the rod 4. The rod 4 passes through the slider 3, and a bearing 31 is installed between the slider 3 and the rod 4.

[0023] like Figure 1 As shown, it includes a shaft 14, a connecting plate 13 rotatably connected to the shaft 14, the connecting plate 13 being fixedly installed on the base plate 1, and a motor 12 connected to the shaft 14. The shaft 14 is driven by the motor 12 to rotate along its own axis.

[0024] A damping cylinder 141 is installed on the outer wall of shaft 14, and a damping cylinder 43 is installed on the outer wall of rod 4. Both damping cylinders 141 and 43 are made of rubber. The axial direction of damping cylinder 141 is parallel to that of damping cylinder 43. The outer circumferential wall of damping cylinder 141 abuts against the outer circumferential wall of damping cylinder 43. When damping cylinder 141 rotates, it drives damping cylinder 43 to rotate through friction. Furthermore, damping cylinder 43 remains in contact with damping cylinder 141 throughout its axial movement.

[0025] The inner circumferential wall of the second damping cylinder 43 is in contact with the outer circumferential wall of the rod body 4. The inner circumferential wall of the second damping cylinder 43 is provided with multiple grooves 431, which are evenly distributed along the circumference of the second damping cylinder 43. The outer wall of the rod body 4 is provided with protrusions that correspond one-to-one with the grooves 431. The protrusions of the rod body 4 are inserted into the grooves 431 to prevent the second damping cylinder 43 from rotating and slipping.

[0026] When the detection rod 42 is inserted into the hole to be tested 51 for testing, the rod body 4 rotates back and forth at a slow speed (achieved by the motor 12 connected to the reducer, not shown in the figure). When the hole to be tested 51 is close to the minimum insertable diameter of the detection rod 42, that is, when the detection rod 42 is close to the minimum tolerance diameter, the detection rod 42 can also be inserted into the hole to be tested 51 under the action of rotation, so as to reduce the phenomenon of false detection.

[0027] The rod body 4 has an end face 41, which is located at the end of the detection rod 42 near the rod body 4. The outer diameter of the end face 41 is larger than the maximum tolerance diameter of the hole 51 to be tested. When the detection rod 42 is inserted into the hole 51 to the maximum depth, the end face 41 acts as a limit to prevent excessive insertion and removal difficulties.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An aperture detection device, characterized by, The device includes a rod body (4), which includes a detection rod (42) for detecting the hole (51) of the component to be tested (5). The detection rod (42) is coaxially arranged with the hole (51) to be tested. The outer diameter of the detection rod (42) is the minimum tolerance diameter of the hole (51) to be tested. The rod body (4) can move axially so that the detection rod (42) moves closer to or further away from the hole (51) to be tested. The rod body (4) can also rotate along its own axis.

2. An aperture detection device according to claim 1, wherein Includes a movable seat (2), which is axially movable along the rod (4). The movable seat (2) is provided with a countersunk hole (21), through which the rod (4) passes. A slider (3) is slidably connected to the inner wall of the countersunk hole (21). The slider (3) is axially movable along the inner wall of the countersunk hole (21). The slider (3) is rotatably connected to the rod (4), and the rod (4) passes through the slider (3). The movable seat (2) is equipped with a pressure plate (22), the rod (4) passes through the pressure plate (22), and a spring (211) is installed in the countersunk hole (21). One end of the spring (211) abuts against the pressure plate (22), and the other end abuts against the slider (3).

3. An aperture detection device according to claim 2, wherein Includes a base plate (1), on which a slide rail (11) is mounted, and the slide rail (11) is slidably connected to the movable seat (2).

4. An aperture detection device according to claim 2, wherein The movable base (2) is equipped with a connecting block (151), and the connecting block (151) is connected to a driving component (15).

5. The aperture detection device of claim 1, wherein, Includes a shaft (14), which is rotatable along its own axis. A damping cylinder one (141) is installed on the outer wall of the shaft (14), and a damping cylinder two (43) is installed on the outer wall of the rod body (4). The damping cylinder one (141) is axially parallel to the damping cylinder two (43). The circumferential outer wall of the damping cylinder one (141) abuts against the circumferential outer wall of the damping cylinder two (43). When the damping cylinder one (141) rotates, it drives the damping cylinder two (43) to rotate through friction.

6. An aperture detection device according to claim 5, wherein The inner peripheral wall of the second damping cylinder (43) is in contact with the outer peripheral wall of the rod (4). The inner peripheral wall of the second damping cylinder (43) is provided with a plurality of grooves (431). The grooves (431) are evenly distributed along the circumference of the second damping cylinder (43). The outer wall of the rod (4) is provided with protrusions that correspond one-to-one with the grooves (431). The protrusions of the rod (4) are inserted into the grooves (431).

7. An aperture detection device according to claim 5, wherein It includes a shaft (14), which is rotatably connected to a connecting plate (13), and the shaft (14) is connected to a motor (12).

8. The aperture detection device of claim 1, wherein, The rod body (4) has an end face (41), which is located at the end of the detection rod (42) near the rod body (4). The outer diameter of the end face (41) is larger than the maximum tolerance diameter of the hole to be detected (51).

9. An aperture detection device according to claim 2, wherein, A bearing (31) is installed between the slider (3) and the rod (4).

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