Key slot hole inspection device

Abstract

The utility model provides a keyway hole inspection device, which relates to the technical field of inspection devices, and comprises a base, the top end of the base is fixedly connected with a frame rod, the outer surface of the base is provided with a groove block, the outer surface of the base is provided with a detection device, and the detection device comprises a round rod. The outer surface of the round rod slides at the top end of the inner wall of the frame rod, the bottom end of the round rod is fixedly connected with a convex block, the outer surface of the base is provided with a through hole, and one side, close to the through hole, of the outer surface of the base is fixedly connected with a positioning ring. The round rod is pulled to slide upwards on the inner wall of the frame rod, the groove block is placed on the surface of the base, then the round rod is controlled to adjust the position of the protruding block so that the protruding block can be aligned with the key groove hole in the groove block, the protruding block can move downwards to observe whether the protruding block can penetrate through the interior of the groove block, and whether a product is qualified or not can be easily and rapidly inspected.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection devices, in particular to a keyway hole inspection device. Background Art

[0002] A keyway is a groove machined on a shaft or in a hole that matches a key and is used to install a key to transmit torque. After the keyway hole is opened, it is usually necessary to use an inspection device to inspect the inner diameter of the keyway hole to avoid the situation where the key cannot match the keyway hole as much as possible.

[0003] When inspecting the keyway hole, the size is obtained by measuring the dimension chain with the help of calipers, which is inefficient. The inspection effect is good and the error is small on projection measuring instruments, three-coordinate measuring instruments, but the efficiency is low, and the lack of measuring equipment will be limited. The use of the above two traditional inspection devices has the problems of low efficiency in dimensional data calculation and limited inspection equipment. Some companies do not have this inspection equipment, resulting in labor-intensive and low efficiency, and high production costs. Utility Model Content

[0004] The utility model aims to solve the problem that when inspecting a keyway hole, the size is obtained by measuring the size chain with the help of a caliper or the like, which is inefficient, and the detection effect is good and the error is small but the efficiency is low on a projection measuring instrument, a three-coordinate measuring instrument and the like, and the lack of measuring equipment will limit the detection. The use of the above two traditional inspection devices has the problems of low efficiency in calculating the size data and limited inspection equipment. Some enterprises do not have such inspection equipment, resulting in labor-intensive work, low efficiency and high production cost. A keyway hole inspection device is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a keyway hole inspection device, comprising a base, the top end of the base is fixedly connected to a frame rod, the outer surface of the base is provided with a groove block, the outer surface of the base is provided with a detection device, the detection device comprises a round rod, the outer surface of the round rod slides on the top end of the inner wall of the frame rod, the bottom end of the round rod is fixedly connected to a protrusion, the outer surface of the base is provided with a through hole, and the outer surface of the base is fixedly connected to a positioning ring on the side close to the through hole.

[0006] The effect achieved by the above-mentioned components is: by setting the protrusion, when inspecting the key slot hole of the slot block, first pull the round rod to make the round rod slide upward on the inner wall of the frame rod, then place the bottom end of the slot block inside the positioning ring, rotate the round rod to align the position of the protrusion with the key slot hole of the slot block, then loosen the round rod or push it by hand to make the round rod slide downward on the inner wall of the frame rod so that the protrusion passes through the key slot hole inside the slot block. If the protrusion can slide from the through hole to the bottom end of the base, the slot block is a qualified product, and if it cannot be inserted into the key slot hole inside the slot block, it is an unqualified product.

[0007] Preferably, a thread groove is formed on one side of the outer surface of the round rod close to the protrusion, and the thread groove on the outer surface of the round rod is threadedly connected to the top end of the inner wall of the rack rod.

[0008] The effect achieved by the above components is: when the detection device is not used or the slot block is placed and taken, the round rod can be slid upward and then rotated so that the position where the thread groove is set on the outer surface of the round rod is threadedly connected with the inner wall of the rack rod to temporarily fix the position of the round rod and the protrusion on the outer surface of the rack rod.

[0009] Preferably, a plurality of convex strips are fixedly connected to the top end of the round rod, and the convex strips are distributed in a circle on the outer surface of the round rod.

[0010] The effect achieved by the above-mentioned components is that the convex strip pinched at the top end of the outer surface of the round rod can more conveniently pull or rotate the round rod without slipping.

[0011] Preferably, two positioning pieces are fixedly connected to the outer surface of the rack rod, and the distance between the two positioning pieces is slightly greater than the width of the protrusion.

[0012] The effect achieved by the above components is that the mutual angle between the protrusion and the frame rod can be limited by setting the positioning piece to avoid the angle between the protrusion and the round rod from being deflected as much as possible.

[0013] Preferably, a gasket is fixedly connected to one side of the base, and the gasket is a rubber sheet made of rubber material.

[0014] The effect achieved by the above components is that by providing the gasket made of rubber material, when the protrusion falls through the through hole and hits the gasket on the surface of the base, the bottom end is not easily deformed due to impact.

[0015] Preferably, an auxiliary device is provided at the bottom end of the base, and the auxiliary device comprises a card plate, two card slots are provided on the outer surface of the card plate, and a plurality of suction cups are provided at the bottom end of the card plate.

[0016] The effect achieved by the above components is: when using the detection device, the card slot of the card board can be stuck on the outer surface of the base so that the card board is located at the bottom of the base. The card board can be adsorbed on the desktop through the suction cup at the bottom of the card board to fix the position of the card board and the base for easy use of the detection device.

[0017] Preferably, a plurality of rectangular strips are fixedly connected to the inner wall of the card slot, the rectangular strips are linearly distributed inside the card slot, and the rectangular strips are rubber strips made of rubber material.

[0018] The effect achieved by the above components is: by setting the rectangular strip of rubber material, the friction and tightness between the outer surface of the base and the inner wall of the slot can be increased when the outer surface of the base is located inside the slot, so that the card board is more stable when it is stuck on the outer surface of the base.

[0019] Preferably, two grooves are provided on the outer surface of the card plate, and the two grooves are respectively located on both sides of the top of the card plate.

[0020] The effect achieved by the above components is that the pallet can be more conveniently grasped and controlled to move or disassembled by pinching the groove on the outer surface of the pallet.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, a detection device is set up, the slot block is placed on the surface of the base, and the round rod is controlled to adjust the position of the protrusion to align the protrusion with the key slot hole inside the slot block, and the protrusion is moved downward to observe whether the protrusion can pass through the inside of the slot block, so that it is easy and quick to check whether the product is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the round rod of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the pallet of the utility model.

[0027] Legend: 1. Base; 2. Detection device; 3. Auxiliary device; 4. Frame rod; 5. Slot block; 21. Through hole; 22. Positioning ring; 23. Round rod; 24. Bump; 25. Raised strip; 26. Threaded groove; 27. Positioning sheet; 28. Gasket; 31. Card plate; 32. Slot; 33. Suction cup; 34. Rectangular strip; 35. Groove. DETAILED DESCRIPTION

[0028] Embodiment 1, as Figure 1-3As shown, a key slot hole inspection device comprises a base 1, the top of the base 1 is fixedly connected to a frame rod 4, a slot block 5 is arranged on the outer surface of the base 1, a detection device 2 is arranged on the outer surface of the base 1, the detection device 2 comprises a round rod 23, the outer surface of the round rod 23 slides on the top of the inner wall of the frame rod 4, the bottom end of the round rod 23 is fixedly connected to a protrusion 24, a through hole 21 is opened on the outer surface of the base 1, and a positioning ring 22 is fixedly connected on the side of the outer surface of the base 1 close to the through hole 21. By setting the protrusion 24, when inspecting the key slot hole of the slot block 5, first pull the round rod 23 to make the round rod 23 slide upward on the inner wall of the frame rod 4, and then pull the slot block 5 The bottom end is placed inside the positioning ring 22, and the round rod 23 is rotated to align the protrusion 24 with the key slot hole of the slot block 5, and then the round rod 23 is loosened or pushed by hand to slide the round rod 23 downward on the inner wall of the frame rod 4 so that the protrusion 24 passes through the key slot hole inside the slot block 5. If the protrusion 24 can slide from the through hole 21 to the bottom end of the base 1, the slot block 5 is a qualified product, and if it cannot be inserted into the key slot hole inside the slot block 5, it is an unqualified product. By setting up the detection device 2, by placing the slot block 5 on the surface of the base 1, and then controlling the round rod 23 to adjust the position of the protrusion 24 to observe whether the protrusion 24 can pass through the inside of the slot block 5, it is easy and quick to check whether the product is qualified.

[0029] Reference Figure 1-3 As shown, in this embodiment: a thread groove 26 is provided on one side of the outer surface of the round rod 23 close to the protrusion 24, and the thread groove 26 on the outer surface of the round rod 23 is threadedly connected to the top end of the inner wall of the frame rod 4. When the detection device 2 is not in use or the slot block 5 is placed and taken, the round rod 23 can be slid upward and then the round rod 23 can be rotated so that the position where the thread groove 26 is provided on the outer surface of the round rod 23 is threadedly connected to the inner wall of the frame rod 4 to temporarily fix the positions of the round rod 23 and the protrusion 24 on the outer surface of the frame rod 4. A plurality of convex strips 25 are fixedly connected to the top end of the round rod 23, and the convex strips 25 are distributed in a circle on the outer surface of the round rod 23. The convex strips 25 pinched at the top end of the outer surface of the round rod 23 can more conveniently pull or rotate the round rod 23 without slipping.

[0030] Reference Figure 1-3 As shown, in this embodiment: two positioning pieces 27 are fixedly connected to the outer surface of the frame rod 4, and the distance between the two positioning pieces 27 is slightly larger than the width of the protrusion 24. By setting the positioning pieces 27, the mutual angle between the protrusion 24 and the frame rod 4 can be limited to avoid the angle between the protrusion 24 and the round rod 23 from being deflected as much as possible. A gasket 28 is fixedly connected to one side of the base 1. The gasket 28 is a rubber sheet made of rubber material. By setting the gasket 28 made of rubber material, the bottom end of the protrusion 24 is not easily deformed due to impact when it falls through the through hole 21 and hits the gasket 28 on the surface of the base 1.

[0031] Reference Figure 1 and Figure 4As shown, in this embodiment: an auxiliary device 3 is provided at the bottom end of the base 1, and the auxiliary device 3 includes a card board 31. Two card slots 32 are provided on the outer surface of the card board 31, and a plurality of suction cups 33 are provided at the bottom end of the card board 31. When using the detection device 2, the card slots 32 of the card board 31 can be stuck on the outer surface of the base 1 so that the card board 31 is located at the bottom end of the base 1. The card board 31 can be adsorbed on the desktop through the suction cup 33 at the bottom end of the card board 31 to fix the positions of the card board 31 and the base 1 for easy use of the detection device 2.

[0032] Reference Figure 1 and Figure 4 As shown, in the present embodiment: a plurality of rectangular strips 34 are fixedly connected to the inner wall of the card slot 32, and the rectangular strips 34 are linearly distributed inside the card slot 32. The rectangular strips 34 are rubber strips. By providing the rubber rectangular strips 34, the friction and tightness of the outer surface of the base 1 in contact with the inner wall of the card slot 32 when the outer surface of the base 1 is located inside the card slot 32 can be increased, so that the card board 31 is more stable when it is stuck on the outer surface of the base 1. Two grooves 35 are provided on the outer surface of the card board 31, and the two grooves 35 are respectively located on both sides of the top of the card board 31. Pinching the grooves 35 on the outer surface of the card board 31 can make it more convenient to hold the card board 31 to control the movement of the card board 31 or to disassemble the card board 31.

[0033] Working principle: When using the detection device 2 to inspect the key slot hole inside the slot block 5, the card plate 31 can be first clamped on the outer surface of the base 1, so that the two sides of the bottom end of the base 1 are located at the inner walls of the two card slots 32 where the rubber rectangular strips 34 are provided, and then the card plate 31 and the base 1 are adsorbed on the desktop through the suction cup 33 at the bottom end of the card plate 31, and then the convex strip 25 at the top of the round rod 23 is pinched to pull the round rod 23 to slide upward on the inner wall of the frame rod 4 so that the thread groove 26 on the outer surface of the round rod 23 is close to the top of the frame rod 4, and the round rod 23 is rotated so that the thread groove 26 on the outer surface of the round rod 23 is threadedly connected with the top of the inner wall of the frame rod 4. The round rod 23 and the convex block 24 are in The position of the outer surface of the frame rod 4 is temporarily fixed, and then the bottom end of the slot block 5 is clamped inside the positioning ring 22, and the round rod 23 is rotated to release the position fixation of the round rod 23 and the frame rod 4, and the protrusion 24 is aligned with the key slot hole inside the slot block 5 to move the round rod 23 downward. If the protrusion 24 can pass through the key slot hole inside the slot block 5 and pass through the through hole 21 to contact the outer surface of the gasket 28, the slot block 5 is a qualified product. If the protrusion 24 fails to pass through the key slot hole inside the slot block 5, the slot block 5 is an unqualified product. After the inspection is completed, the round rod 23 can be held by hand or the position of the round rod 23 and the protrusion 24 can be fixed by the frame rod 4, and then the slot block 5 can be taken out.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A keyway hole inspection device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a frame rod (4), the outer surface of the base (1) is provided with a groove block (5), the outer surface of the base (1) is provided with a detection device (2), the detection device (2) comprises a round rod (23), the outer surface of the round rod (23) slides on the top of the inner wall of the frame rod (4), the bottom end of the round rod (23) is fixedly connected to a protrusion (24), the outer surface of the base (1) is provided with a through hole (21), and the outer surface of the base (1) is fixedly connected to a positioning ring (22) on one side close to the through hole (21).

2. A keyway hole inspection device according to claim 1, characterized in that: A thread groove (26) is provided on one side of the outer surface of the round rod (23) close to the protrusion (24), and the thread groove (26) on the outer surface of the round rod (23) is threadedly connected to the top end of the inner wall of the rack rod (4).

3. A keyway hole inspection device according to claim 2, characterized in that: A plurality of convex strips (25) are fixedly connected to the top end of the round rod (23), and the convex strips (25) are distributed in a circular shape on the outer surface of the round rod (23).

4. A keyway hole inspection device according to claim 3, characterized in that: Two positioning pieces (27) are fixedly connected to the outer surface of the rack rod (4), and the distance between the two positioning pieces (27) is slightly greater than the width of the protrusion (24).

5. A keyway hole inspection device according to claim 4, characterized in that: A gasket (28) is fixedly connected to one side of the base (1), and the gasket (28) is a rubber sheet made of rubber material.

6. A keyway hole inspection device according to claim 5, characterized in that: An auxiliary device (3) is arranged at the bottom end of the base (1), and the auxiliary device (3) comprises a card plate (31), two card slots (32) are arranged on the outer surface of the card plate (31), and a plurality of suction cups (33) are arranged at the bottom end of the card plate (31).

7. A keyway hole inspection device according to claim 6, characterized in that: A plurality of rectangular strips (34) are fixedly connected to the inner wall of the slot (32); the rectangular strips (34) are linearly distributed inside the slot (32); and the rectangular strips (34) are rubber strips made of rubber material.

8. A keyway hole inspection device according to claim 7, characterized in that: Two grooves (35) are provided on the outer surface of the clamping plate (31), and the two grooves (35) are respectively located on two sides of the top end of the clamping plate (31).

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