A multi-node endoscopy inspection device and inspection method

Abstract

The present invention discloses a multi-node endoscopy inspection device and inspection method, which includes a bracket. An elevating seat is arranged on the bracket, and an endoscope is installed on the elevating seat. The lens tube of the endoscope faces downward, and the lens tube can be inserted into the workpiece to be inspected as the elevating seat moves downward. A movable hook is arranged on the elevating seat, and the hook can move up and down with the elevating seat. A plurality of stoppers are arranged on the bracket, and the plurality of stoppers are arranged on the lifting path of the hook. When the hook hooks the stopper, the endoscope is restricted at the corresponding inspection node. A hook-removing mechanism is also arranged on the bracket, and the hook-removing mechanism can separate the hook from the stopper, so that the elevating seat drops until the hook hooks the next stopper. The two ends of the hook are respectively a connection end and a hooking end. The connection end of the hook is rotatably installed on the elevating seat, and the hooking end of the hook can rotate counterclockwise to hook the stopper and can rotate clockwise to separate from the stopper. The present invention can perform endoscopy inspection on the workpiece in multiple nodes.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopy inspection, and particularly to a multi-node endoscopy inspection device and an inspection method. Background Art

[0002] After the workpiece is produced, it is necessary to inspect the quality of the workpiece, which includes inspecting the surface quality of the workpiece and screening out workpieces with surface defects, cracks or other defects. Inspecting the outer surface of the workpiece is relatively easy, while inspecting the inner surface of the workpiece is more difficult. Moreover, for some long workpieces, such as pipe fittings, it is often necessary to divide them into multiple nodes to inspect the inner surface of the workpiece. Therefore, suitable endoscopy inspection equipment is required. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a multi-node endoscopy inspection device and an inspection method, which can divide the workpiece into multiple nodes for endoscopy inspection.

[0004] Technical Solution: To achieve the above object, a multi-node endoscopy inspection device of the present invention includes a bracket. A lifting seat is arranged on the bracket, and an endoscope is installed on the lifting seat. The lens tube of the endoscope faces downward, and the lens tube can be inserted into the workpiece to be inspected as the lifting seat moves downward. A movable hook is arranged on the lifting seat, and the hook can move up and down with the lifting seat. A plurality of stoppers are arranged on the bracket, and the plurality of stoppers are arranged on the lifting path of the hook. When the hook hooks the stopper, the endoscope is restricted at the corresponding inspection node. A decoupling mechanism is also arranged on the bracket, and the decoupling mechanism can separate the hook from the stopper, so that the lifting seat drops until the hook hooks the next stopper. A vertical frame is arranged on the bracket, and the stoppers are correspondingly installed on the vertical frame, and the stoppers can be vertically adjusted on the vertical frame to change the position of the inspection node. The two ends of the hook are respectively a connection end and a hooking end. The connection end of the hook is rotatably installed on the lifting seat, and the hooking end of the hook can rotate counterclockwise to hook the stopper and can rotate clockwise to separate from the stopper. A repulsive limiting member is arranged on the lifting seat, and the repulsive limiting member has a repulsive force on the hook. This repulsive force has a tendency to push the hook to rotate counterclockwise, and the repulsive limiting member can also limit the hook to rotate counterclockwise. The repulsive limiting member is a magnetic block, and the hooking end of the hook is made of a magnetic material. The magnetic action of the magnetic block on the hooking end has a tendency to push the hook to rotate counterclockwise. The connection end of the hook will hit the magnetic block as the hook rotates counterclockwise, so that the magnetic block can limit the hook to rotate counterclockwise. The connection end of the hook is rotatably installed on the lifting seat through a rotating shaft. When the hooking end of the hook drops with the lifting seat and presses on the stopper, the contact point between the hooking end and the stopper is located obliquely below the rotating shaft, so that the supporting force of the stopper on the hooking end has a tendency to push the hook to rotate counterclockwise.

[0005] Further, the engaging end of the hook has a downward pressing surface, and the connecting end has a bumping stopping surface; the stopper has a blocking surface, and the magnet has a limiting surface; when the engaging end of the hook rotates counterclockwise to hook the stopper, the downward pressing surface presses against the blocking surface, and the bumping stopping surface fits against the limiting surface.

[0006] Further, the unhooking mechanism includes a cylinder and a movable push rod; the cylinder is installed on the lifting seat and can move up and down with the lifting seat; there are multiple movable push rods, and each movable push rod is respectively installed on each stopper; when the hook hooks the stopper, one end of the movable push rod faces the engaging end of the hook, and the other end of the movable push rod faces the cylinder, so that the cylinder can push the hook away from the stopper through the movable push rod.

[0007] Further, a crane is provided on the bracket, the lower end of the crane is connected to the lifting seat, and the crane can lift or release the lifting seat.

[0008] An inspection method for a multi-node endoscope inspection device includes the following steps: Step S1: The crane lifts the lifting seat, and then places the workpiece to be inspected directly below the endoscope; Step S2: The crane releases the lifting seat, so that the lifting seat falls under the action of gravity, and the endoscope is inserted into the workpiece as the lifting seat falls; when the hook hooks the stopper, the endoscope stops at the corresponding inspection node, and the workpiece is inspected endoscopically; Step S3: The unhooking mechanism separates the hook from the stopper, so that the lifting seat falls downward again until the hook hooks the next stopper, at this time the endoscope stops at the next inspection node, and the workpiece is continuously inspected endoscopically; Step S4: Step S3 is cycled until the endoscope completes the inspection of all nodes, and then the crane lifts the lifting seat again.

[0009] Beneficial effects: The beneficial effects of a multi-node endoscope inspection device and inspection method of the present invention are as follows:

[0010] 1) The lifting seat drives the endoscope to move downward, and the tube of the endoscope is inserted into the workpiece for endoscopic inspection of the workpiece; the lifting seat can be hooked on different stoppers through the hook, so as to perform endoscopic inspection of the workpiece at multiple nodes.

[0011] 2) Due to the special structure of the hook, when the hook presses on the stopper as the lifting seat falls, the supporting force of the stopper on the hook will push the hook to rotate counterclockwise, so that the hook is stably hooked on the stopper and is not easily unhooked. Description of the Drawings

[0012] Att Figure 1 It is a schematic diagram of the stopper installed on the vertical frame;

[0013] Att Figure 2 It is a schematic diagram of the unhooking mechanism;

[0014] Att Figure 3 It is a schematic diagram of the cooperation of the hook, the magnet and the stopper;

[0015] Attached Figure 4 is a side view of the multi-node endoscopy inspection device of the present invention;

[0016] Attached Figure 5 is a schematic diagram of the overall structure of the multi-node endoscopy inspection device of the present invention. Specific embodiments

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] As attached Figures 1 to 5 A multi-node endoscopy inspection device, including a bracket 1, a lifting seat 3 is arranged on the bracket 1, and the lifting seat 3 can move up and down on the bracket 1. An endoscope 4 is installed on the lifting seat 3, the endoscope 4 has a vertical lens tube 5, and the lens tube 5 of the endoscope 4 faces downward. After placing the workpiece 6 to be inspected directly below the lens tube 5, the lens tube 5 can be inserted into the workpiece 6 to be inspected as the lifting seat 3 moves downward. As attached Figure 4 and 5 shown in an embodiment, the workpiece 6 to be inspected is a pipe fitting. After the pipe fitting is fixed vertically, the lens tube 5 can be correspondingly inserted into the pipe fitting. There are multiple branch pipes on the pipe fitting body, and the connection between the pipe fitting body and the branch pipes needs to be inspected key points. Therefore, the connection between the pipe fitting body and the branch pipes is the inspection node. When performing endoscopy inspection on the pipe fitting, it is necessary to make the lower end of the lens tube 5 stop at each inspection node in turn.

[0019] As attached Figure 1 shown, a vertical frame 9 is arranged on the bracket 1, a stop block 8 is correspondingly installed on the vertical frame 9, and the stop block 8 can be vertically adjusted on the vertical frame 9 to change the position of the inspection node. When performing endoscopy inspection on the workpiece 6 by dividing it into multiple nodes, due to the difference of the workpiece 6, the positions of each inspection node on the workpiece 6 are also different. Therefore, it is necessary to change the position of the stop block 8 on the vertical frame 9 to adapt to different workpieces 6. A scale is arranged on the vertical frame 9 to more accurately adjust the position of the stop block 8.

[0020] Sometimes, the positions of two adjacent inspection nodes on the workpiece 6 are very close. Correspondingly, the positions of two adjacent stop blocks 8 on the vertical frame 9 are also very close. For the movable hook 7, after the hook 7 is separated from the previous stop block 8, it needs to be reset before it can hook the next stop block 8, and the reset takes time. When the positions of two adjacent stop blocks 8 are very close, it may happen that the hook 7 has not been fully reset, but the hook 7 has already contacted the stop block 8; this will cause the hook 7 to hook on the stop block 8 in an incompletely reset state, resulting in the hook 7 not being able to stably hook the stop block 8 and possibly causing the hook to disengage.

[0021] A movable hook 7 is provided on the lifting seat 3, and the hook 7 can move up and down with the lifting seat 3. A plurality of stoppers 8 are provided on the bracket 1, and the plurality of stoppers 8 are arranged on the lifting path of the hook 7. During the downward movement of the lifting seat 3, when the hook 7 can move to hook the stopper 8, the endoscope 4 can be restricted at the corresponding inspection node. A hook - releasing mechanism is also provided on the bracket 1, and the hook - releasing mechanism can separate the hook 7 from the stopper 8, so that the lifting seat 3 drops until the hook 7 hooks the next stopper 8, thereby enabling the endoscope 4 to stop at each inspection node in turn to perform internal inspection on the workpiece 6 at multiple nodes.

[0022] As shown in the reference appendix Figure 1 、 2 and 3, the two ends of the hook 7 are respectively a connecting end 10 and a hooking end 11. The connecting end 10 of the hook 7 is rotatably installed on the lifting seat 3. The hooking end 11 of the hook 7 can rotate counter - clockwise to hook the stopper 8, and the hooking end 11 of the hook 7 can also rotate clockwise to separate from the stopper 8.

[0023] A repulsive limiting member is provided on the lifting seat 3. The repulsive limiting member has a repulsive force on the hook 7, and this repulsive force has a tendency to push the hook 7 to rotate counter - clockwise. Through the repulsive force, the hook 7 is urged to hook the stopper 8. In addition, the repulsive limiting member can also limit the counter - clockwise rotation of the hook 7, so that the hook 7 can remain stable after hooking the stopper 8. Thus, with a single repulsive limiting member, two opposite limiting effects on the hook 7 are achieved.

[0024] Specifically, as shown in the appendix Figure 3 As shown, the repulsive limiting member is a magnetic block 12, and the hooking end 11 of the hook 7 is made of a magnetic material, so that the magnetic block 12 has a magnetic repulsive force on the hooking end 11 of the hook 7. The magnetic action of the magnetic block 12 on the hooking end 11 has a tendency to push the hook 7 to rotate counter - clockwise to urge the hook 7 to move to hook the stopper 8. As the hook 7 rotates counter - clockwise, the connecting end 10 of the hook 7 will hit the magnetic block 12. Therefore, after the hook 7 hooks the stopper 8, the magnetic block 12 can limit the further counter - clockwise rotation of the hook 7, so that the hook 7 can stably hook on the stopper 8.

[0025] A rotating shaft 13 is provided on the lifting seat 3. A rotating hole is formed at the connecting end 10 of the hook 7. The rotating shaft 13 is in rotational fit with the rotating hole, so that the connecting end 10 of the hook 7 is rotatably mounted on the lifting seat 3 through the rotating shaft 13. When the engaging end 11 of the hook 7 falls with the lifting seat 3 and presses on the stop block 8, the contact point between the engaging end 11 and the stop block 8 is located obliquely below the rotating shaft 13. At this time, the magnet 12 and this contact point are respectively located on both sides of the rotating shaft 13. Then, under the action of gravity, the lifting seat 3 will fall downward, causing the engaging end 11 of the hook 7 to continue to press on the stop block 8. Correspondingly, the stop block 8 will exert an upward supporting force on the engaging end 11 of the hook 7. Since the contact point between the engaging end 11 and the stop block 8 is located obliquely below the rotating shaft 13, the supporting force of the stop block 8 on the engaging end 11 will push the hook 7 to rotate counterclockwise, prompting the hook 7 to return to its original position completely, so as to hook on the stop block 8 more stably and not easily get unhooked.

[0026] As shown in the Figure 3 attachment, therefore, the lower surface of the engaging end 11 of the hook 7 is the downward pressing surface 14, and one side of the connecting end 10 is the impact stopping surface 15. A blocking surface 16 is provided on the stop block 8, and a limiting surface 17 is provided on one side of the magnet 12. When the engaging end 11 of the hook 7 rotates counterclockwise to hook tightly on the stop block 8, the downward pressing surface 14 is pressed against the blocking surface 16, and the impact stopping surface 15 is attached to the limiting surface 17. At this time, the contact area between the hook 7 and the stop block 8 is the largest, and it is not easily unhooked.

[0027] Through the above settings of the hook 7, the magnet 12, and the stop block 8, when the positions of two adjacent stop blocks 8 are very close, the hook 7 can also be automatically adjusted to return to its original position completely under the action of the gravity of the lifting seat 3, so as to stably hook on the stop block 8 and avoid unhooking.

[0028] As shown in the Figure 3 attachment, the bottom of the stop block 8 has an inclined guide surface 21. During the upward movement of the lifting seat 3, the engaging end 11 of the hook 7 can rotate clockwise along the inclined guide surface 21 to avoid the stop block 8, so that the stop block 8 can smoothly move upward with the lifting seat 3 without being blocked by the stop block 8.

[0029] As shown in the Figure 2As shown in the figure, the decoupling mechanism includes a cylinder 18 and a movable push rod 19. The cylinder 18 is installed on the lifting seat 3 and can move up and down with the lifting seat 3. There are multiple movable push rods 19, and each movable push rod 19 is respectively installed on each stop block 8. There is a horizontal through hole in the stop block 8, and the movable push rod 19 is slidably installed in the horizontal through hole. When the hook 7 hooks the stop block 8, one end of the movable push rod 19 is opposite to the engaging end 11 of the hook 7, and the other end of the movable push rod 19 is opposite to the cylinder 18, so that the cylinder 18 can push the hook 7 away from the stop block 8 through the movable push rod 19. After the hook 7 is separated from the stop block 8, the lifting seat 3 falls downward, and the cylinder 18 also falls downward accordingly. At this time, the cylinder 18 retracts and separates from the movable push rod 19. There is an elastic member between the movable push rod 19 and the stop block 8. After the cylinder 18 retracts and separates from the movable push rod 19, the movable push rod 19 will retract into the horizontal through hole under the action of the elastic member. A control valve 23 is provided on the lifting seat 3. Pressing the control valve 23 can make the cylinder 18 perform a telescopic action, so that the hook 7 is separated from the previous stop block 8, and then hooks the next stop block 8, so that the endoscope 4 moves down to the next inspection node.

[0030] As shown in the attached Figure 5 figure, a guide seat 22 is provided on the lifting seat 3. The guide seat 22 can slide vertically on the lifting seat 3. A guide hole is provided on the guide seat 22, and the mirror tube 5 of the endoscope 4 is correspondingly inserted into the guide hole. When the guide seat 22 moves down with the lifting seat 3 and abuts against the workpiece 6, the mirror tube 5 of the endoscope 4 can continue to slide in the guide hole. By guiding the mirror tube 5 through the guide seat 22, the mirror tube 5 can be accurately inserted into the workpiece 6 to be inspected.

[0031] A hoist 20 is provided on the bracket 1. The lower end of the hoist 20 is connected to the lifting seat 3 by a lifting rope, and the hoist 20 can lift or release the lifting seat 3. A locking mechanism 24 is also provided on the bracket 1. When the hoist 20 lifts the lifting seat 3 to the highest point, the lifting seat 3 can be fixed at the highest point position by the locking mechanism 24.

[0032] An inspection method for a multi-node endoscopy inspection device includes the following steps:

[0033] Step S1: The hoist 20 lifts the lifting seat 3, then places the workpiece 6 to be inspected directly below the endoscope 4, and fixes the inspected workpiece 6. Taking a pipe fitting as an example, the upper pipe orifice of the pipe fitting should be correspondingly located directly below the mirror tube 5.

[0034] Step S2: Release the fixation of the lifting seat 3 by the locking mechanism 24, and then control the hoist 20 to release the lifting seat 3, so that the lifting seat 3 falls under the action of gravity, and the endoscope 4 is inserted into the workpiece 6 as the lifting seat 3 falls; when the hook 7 hooks the stop block 8 as the lifting seat 3 falls, the endoscope 4 stops at the corresponding inspection node and performs an endoscopy inspection on the workpiece 6.

[0035] Step S3: The decoupling mechanism separates the hook 7 from the stopper 8, causing the lifting seat 3 to fall downward again until the hook 7 catches the next stopper 8. At this time, the endoscope 4 stops at the next inspection node, and continues to perform an internal inspection on the workpiece 6;

[0036] Step S4: Repeat Step S3 until the endoscope 4 has completed the inspection of all nodes. Then, the crane 20 lifts the lifting seat 3 again and re-fixes the lifting seat 3 to the bracket 1 through the locking mechanism 24.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A multi-node internal inspection device, characterized in that: The invention comprises a support (1), a lifting seat (3) is arranged on the support (1), an endoscope (4) is mounted on the lifting seat (3), a mirror tube (5) of the endoscope (4) faces downward, and the mirror tube (5) can be inserted into a workpiece (6) to be inspected as the lifting seat (3) moves downward; a movable hook (7) is arranged on the lifting seat (3), and the hook (7) can move up and down along with the lifting seat (3); The support (1) is provided with a stand (9), and a plurality of blocks (8) are mounted on the stand (9), and the blocks (8) can be adjusted vertically on the stand (9) to change the position of the inspection node; the plurality of blocks (8) are arranged on the lifting path of the hook (7); when the hook (7) hooks the block (8), the endoscope (4) is restricted at the corresponding inspection node; a decoupling mechanism is also provided on the support (1), and the decoupling mechanism can separate the hook (7) from the block (8), so that the lifting seat (3) falls until the hook (7) hooks the next block (8); The two ends of the hook (7) are a connecting end (10) and a hooking end (11), respectively; the connecting end (10) is rotatably mounted on the lifting seat (3) via a rotating shaft (13); the hooking end (11) can rotate counterclockwise to hook onto the stopper (8), and can rotate clockwise to separate from the stopper (8); The lifting seat (3) is provided with a magnetic block (12), the hooking end (11) is made of magnetic material, and the magnetic effect of the magnetic block (12) on the hooking end (11) has a tendency to push the hook (7) to rotate counterclockwise; the connecting end (10) will collide with the magnetic block (12) as the hook (7) rotates counterclockwise, and after the hook (7) hooks the stopper (8), the magnetic block (12) can limit the hook (7) from continuing to rotate counterclockwise; When the hook end (11) falls with the lifting seat (3) until it is pressed on the stopper (8), the contact point between the hook end (11) and the stopper (8) is located obliquely below the rotating shaft (13), and the supporting force of the stopper (8) on the hook end (11) has a tendency to push the hook (7) to rotate counterclockwise; The hooking end (11) has a downward pressing surface (14), and the connecting end (10) has a stop surface (15); the stop block (8) has a blocking surface (16), and the magnetic block (12) has a limiting surface (17); when the hooking end (11) rotates counterclockwise to hook the stop block (8), the downward pressing surface (14) is pressed against the blocking surface (16), and the stop surface (15) is pressed against the limiting surface (17).

2. A multi-node internal inspection device according to claim 1, characterized in that: The decoupling mechanism comprises a cylinder (18) and a movable push rod (19); the cylinder (18) is mounted on the lifting seat (3) and can move up and down along with the lifting seat (3); There are a plurality of movable push rods (19), each of which is mounted on each stopper (8); when the hook (7) hooks the stopper (8), one end of the movable push rod (19) is opposite to the hooking end (11), and the other end of the movable push rod (19) is opposite to the cylinder (18), and the cylinder (18) can push the hook (7) away from the stopper (8) through the movable push rod (19).

3. A multi-node internal inspection device according to claim 2, characterized in that: The support (1) is provided with a crane (20), the lower end of the crane (20) is connected to the lifting seat (3), and the crane (20) can lift or release the lifting seat (3).

4. The inspection method of a multi-node internal visual inspection device according to claim 3, characterized in that: The following steps are involved: Step S1: The lifting base (3) is lifted by a crane (20), and then a workpiece (6) to be inspected is placed directly below the endoscope (4); Step S2: the crane (20) releases the lifting seat (3), causing the lifting seat (3) to fall under the action of gravity, and the endoscope (4) is inserted into the workpiece (6) as the lifting seat (3) falls; when the hook (7) hooks the stopper (8), the endoscope (4) stops at the corresponding inspection node, and performs an internal inspection on the workpiece (6); Step S3: the hook (7) is separated from the stopper (8) by the unhooking mechanism, so that the lifting seat (3) falls downward again until the hook (7) hooks the next stopper (8). At this time, the endoscope (4) stops at the next inspection node and continues to perform internal inspection on the workpiece (6); Step S4: Step S3 is repeated in a loop until the endoscope (4) completes the inspection of all nodes, and then the crane (20) lifts the lifting base (3) again.

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