Automatic marking device for abnormal part in electromagnetic ultrasonic thickness measurement

Abstract

The utility model relates to an automatic marking device for an abnormal part in electromagnetic ultrasonic thickness measurement. The marking piece is restrained on the bracket; the marking device is characterized by further comprising a driving part which is in driving connection with the support and used for driving the support to move so as to enable the marking part to be close to or away from the to-be-marked object; and the elastic piece is arranged between the power output shaft of the driving piece and the bracket, so that the marking piece always has a trend of keeping flexible contact with an object to be marked. The marking device has the advantages that the elastic piece is arranged, the elastic piece can enable an elastic deformation space to be formed between the power output shaft of the driving piece and the support, it can be guaranteed that the marking piece and the to-be-marked object keep flexible contact through the elastic piece, the problem that the marking piece is damaged due to rigid contact is avoided, the marking piece and the to-be-marked object can be better attached, and the marking quality is improved. And the marking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic ultrasonic thickness measurement, in particular to an automatic marking device for abnormal parts of electromagnetic ultrasonic thickness measurement. Background Art

[0002] Traditional thickness gauges generally use piezoelectric ultrasonic methods. In terms of the detection process, it brings certain workload and detection difficulties to operators in many fields and occasions. The main disadvantages of the manual operation of the piezoelectric ultrasonic thickness gauge are: (1) the paint layer or oxide layer on the surface of the workpiece needs to be polished, and the surface needs to be restored after the inspection, which is extremely inefficient; (2) traditional ultrasonics must be coated with coupling agent, which has strict requirements on site conditions; (3) when working at high altitude, a fixed platform needs to be built, which is expensive and time-consuming; (4) it is difficult to perform high-temperature in-service inspection.

[0003] For example, Chinese utility model patent number ZL202022597653.6 (authorization announcement number CN213715072U) discloses a water-wall on-site nondestructive testing platform, which includes a three-axis mobile platform, an electromagnetic ultrasonic thickness measurement module, a visual capture module, and a marking module. The electromagnetic ultrasonic thickness measurement module is used to detect the thickness of the water-wall, the visual capture module is used for defect detection and observation of the surrounding environment, and the marking module is used to mark thinning areas or surface defects. The three-axis mobile platform is fixed to the wall-climbing robot via fixing bolts, eliminating the need for scaffolding. In addition, the electromagnetic ultrasonic thickness measurement module is used, eliminating the need for polishing the anti-corrosion layer and any coupling agent.

[0004] Although the above patent can solve the shortcomings of the existing technology, the marking module in the above patent is assembled with the electromagnetic ultrasonic thickness measuring module and fixed together on the upper and lower moving beams of the three-axis moving platform, and the marking module records abnormal points by spraying fluorescent paint. However, if the distance between the marking module and the position to be marked is too close or too far, the marking effect will be affected. To solve this technical problem, the existing technology uses a method of marking by contacting the marking module with the position to be marked. However, the contact method between the marking module and the position to be marked is usually rigid contact, which will cause damage to the marking module. Therefore, further improvement of the existing technology is needed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic marking device for abnormal parts of electromagnetic ultrasonic thickness measurement, which can protect the marked parts in view of the above-mentioned existing technologies.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an automatic marking device for abnormal parts of electromagnetic ultrasonic thickness measurement, comprising:

[0007] Bracket;

[0008] a marking piece, constrained on the bracket;

[0009] It is characterized by also including:

[0010] A driving member is connected to the bracket drive and is used to drive the bracket to move, thereby moving the marking piece closer to or away from the object to be marked;

[0011] The elastic member is arranged between the power output shaft of the driving member and the bracket, so that the marking member always has a tendency to maintain flexible contact with the object to be marked.

[0012] Preferably, the marking member is a rod-shaped marking pen.

[0013] In order to keep the movement of the marking part smooth, a first mounting seat for installing a driving part is provided on the side of the marking pen. The first mounting seat is provided with a guide rail extending along the axial direction of the marking pen. A slider is slidingly provided on the guide rail. The slider is directly connected to the bracket, or the slider is connected to the bracket through a second mounting seat.

[0014] In order to achieve the installation of the elastic part, the slider or the second mounting seat is provided with a mounting shaft arranged along the axial direction of the marking pen, the elastic part is sleeved on the mounting shaft, the power output shaft of the driving part is connected with an abutment part, the other end of the abutment part is sleeved on the mounting shaft and abuts against the elastic part, and the abutment part can slide back and forth along the extension direction of the mounting shaft under the drive of the driving part and the elastic force of the elastic part.

[0015] In order to make the compression of the elastic member more stable, one end of the abutment member is fixedly connected to the power output shaft of the driving member, and the abutment member is always arranged substantially perpendicular to the axial direction of the marking pen.

[0016] Preferably, the elastic member is a spring, a first end of the spring abuts against the slider or the second mounting seat, and a second end of the spring abuts against the abutting member.

[0017] In order to limit the position of the marking pen and prevent it from shaking too much during movement, a clamp for clamping the marking pen is further connected to the slider or the second mounting seat.

[0018] In order to detect the contact between the pen tip of the marking pen and the object to be marked, a third mounting seat is also connected to the guide rail. The third mounting seat has an annular mounting portion for the marking pen to pass through. The annular mounting portion is arranged adjacent to the pen tip of the marking pen, and a photoelectric detection module is provided on the inner peripheral wall of the annular mounting portion.

[0019] In order to make the marking pen contact the object to be marked more accurately, a controller electrically connected to the photoelectric detection module and the driving member is also included. The controller is configured to control the driving member to act accordingly according to the detection results of the photoelectric detection module.

[0020] Preferably, the driving member is an electric push rod, and the electric push rod can be extended and retracted along the axial direction of the marking pen.

[0021] Compared with the prior art, the advantages of the present invention are: by arranging an elastic part, the elastic part can form an elastic deformation space between the power output shaft of the driving part and the bracket. Therefore, the elastic part can ensure that the marking part and the object to be marked maintain flexible contact, avoiding the problem of damage to the marking part caused by rigid contact, and can make the marking part and the object to be marked fit more closely, thereby improving the marking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an electromagnetic ultrasonic thickness gauge equipped with an automatic marking device in an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the automatic marking device;

[0025] Figure 4 for Figure 3 Another perspective structural diagram. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 As shown, the automatic marking device for abnormal parts of electromagnetic ultrasonic thickness measurement in this embodiment is mounted on the electromagnetic ultrasonic thickness gauge. The specific principle of electromagnetic ultrasonic thickness measurement by the electromagnetic ultrasonic thickness gauge is the existing technology. Please refer to the content disclosed in the Chinese utility model patent "A Water-cooled Wall On-site Nondestructive Testing Platform" with patent number ZL202022597653.6 (authorization announcement number CN213715072U), which will not be elaborated here.

[0028] The automatic marking device in this embodiment includes a bracket 1, a marking piece, a driving piece 3 and an elastic piece 4. The driving piece 3 is connected to the bracket 1 and is used to drive the bracket 1 to move, thereby making the marking piece approach or move away from the object to be marked. The elastic piece 4 is arranged between the power output shaft of the driving piece 3 and the bracket 1. The elastic piece 4 can form an elastic deformation space a between the power output shaft of the driving piece 3 and the bracket 1, thereby making the marking piece always have a tendency to maintain flexible contact with the object to be marked. Figures 2-4 As shown, the marking component in this embodiment is a rod-shaped marking pen 2; the driving component 3 is an electric push rod, which can be extended and retracted along the axial direction of the marking pen 2.

[0029] A first mounting seat 5 for mounting the driving member 3 is provided on the side of the marking pen 2. A guide rail 51 extending along the axial direction of the marking pen 2 is provided on the first mounting seat 5. A slider 52 is slidably provided on the guide rail 51. The slider 52 is directly connected to the bracket 1 or connected to the bracket 1 through the second mounting seat 50. Figure 3 As shown, the slider 52 in this embodiment is connected to the bracket 1 through the second mounting seat 50.

[0030] The slider 52 or the second mounting seat 50 is provided with a mounting shaft 53 (eg, Figure 2 As shown, the mounting seat 53 is provided on the second mounting seat 50), the elastic member 4 is sleeved on the mounting shaft 53, the power output shaft of the driving member 3 is connected to the abutment member 54, the other end of the abutment member 54 is sleeved on the mounting shaft 53 and abuts against the elastic member 4, and the abutment member 54 can slide back and forth along the extension direction of the mounting shaft 53 under the drive of the driving member 3 and the elastic force of the elastic member 4. Figure 2 As shown, the elastic member 4 in this embodiment is a spring, and the first end of the spring is against the slider 52 or the second mounting seat 50 ( Figure 2 The first end of the middle spring abuts against the second mounting seat 50), and the second end of the spring abuts against the abutment member 54. Figure 2 As shown, one end of the abutment 54 is fixedly connected to the power output shaft of the driving member 3, and the abutment 54 is always kept basically perpendicular to the axial direction of the marking pen 2, so that the abutment 54 can compress the spring under the drive of the driving member 3, and the force of the abutment 54 acting on the spring is more concentrated.

[0031] The slider 52 or the second mounting base 50 is also connected to a clamp 6 for holding the marking pen 2. In this embodiment, the clamp 6 is mounted outside the marking pen 2. This allows the clamp 6 to limit the circumferential position of the marking pen 2, keeping the marking pen 2 stable and preventing the marking pen 2 from shifting due to excessive shaking during movement.

[0032] Furthermore, a third mounting base 7 is connected to the guide rail 51. This third mounting base 7 has an annular mounting portion 71 through which the marking pen 2 is inserted. The annular mounting portion 71 is positioned adjacent to the tip of the marking pen 2, and a photoelectric detection module 8 is disposed on the inner circumference of the annular mounting portion 71. The automatic marking device in this embodiment further includes a controller electrically connected to the photoelectric detection module 8 and the driver 3. The controller is configured to control the driver 3 to operate in response to the detection results of the photoelectric detection module 8.

[0033] When the electromagnetic ultrasonic thickness gauge detects that a certain position on the object to be measured is an abnormal position of electromagnetic ultrasonic thickness measurement, the automatic marking device is started. The working process of the automatic opening device in this embodiment is as follows:

[0034] like Figure 2 As shown, the automatic marking device is in an initial state; in the initial state, the driving member 3 is controlled to work, that is, the electric push rod gradually moves downward, thereby driving the bracket 1 to move downward as a whole, and the marking pen 2 gradually approaches the object to be marked; and in the process of the electric push rod moving downward, the electric push rod pushes the abutment member 54 to move downward and compresses the spring. The elastic deformation space formed during the compression of the spring can make the marking pen 2 always have a tendency to maintain flexible contact with the object to be marked; and when the marking pen 2 is in flexible contact with the object to be marked, the marking pen 2 is controlled to perform marking.

[0035] After marking is completed, the electric push rod is controlled to retract, that is, the abutment member 54 can move upward under the action of the spring, so that the bracket 1 moves upward, and then the marking pen 2 is separated from the object to be marked. Finally, the abutment member 54 can drive the bracket 1 to move upward as a whole under the action of the electric push rod, and the automatic marking device returns to its initial state.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. Automatic marking device for abnormal parts of electromagnetic ultrasonic thickness measurement, including: Bracket (1); A marking piece is constrained on the bracket (1); It is characterized by also including: A driving member (3) is connected to the support (1) and is used to drive the support (1) to move, thereby moving the marking member closer to or farther away from the object to be marked; The elastic member (4) is arranged between the power output shaft of the driving member (3) and the bracket (1), so that the marking member always has a tendency to maintain flexible contact with the object to be marked.

2. The automatic marking device according to claim 1, characterized in that: The marking piece is a rod-shaped marking pen (2).

3. The automatic marking device according to claim 2, characterized in that: A first mounting seat (5) for mounting a driving member (3) is provided on the side of the marking pen (2); a guide rail (51) extending along the axial direction of the marking pen (2) is provided on the first mounting seat (5); a slider (52) is slidably provided on the guide rail (51); the slider (52) is directly connected to the bracket (1), or the slider (52) is connected to the bracket (1) through a second mounting seat (50).

4. The automatic marking device according to claim 3, characterized in that: The slider (52) or the second mounting seat (50) is provided with a mounting shaft (53) arranged along the axial direction of the marking pen (2); the elastic member (4) is sleeved on the mounting shaft (53); the power output shaft of the driving member (3) is connected to an abutment member (54); the other end of the abutment member (54) is sleeved on the mounting shaft (53) and abuts against the elastic member (4); the abutment member (54) can slide back and forth along the extension direction of the mounting shaft (53) under the drive of the driving member (3) and the elastic force of the elastic member (4).

5. The automatic marking device according to claim 4, characterized in that: One end of the abutment member (54) is fixedly connected to the power output shaft of the driving member (3), and the abutment member (54) is always arranged substantially perpendicular to the axial direction of the marking pen (2).

6. The automatic marking device according to claim 4, characterized in that: The elastic member (4) is a spring, the first end of the spring abuts against the slider (52) or the second mounting seat (50), and the second end of the spring abuts against the abutting member (54).

7. The automatic marking device according to any one of claims 3 to 6, characterized in that: The slider (52) or the second mounting seat (50) is also connected to a clamp (6) for clamping the marking pen (2).

8. The automatic marking device according to any one of claims 3 to 6, characterized in that: The guide rail (51) is also connected to a third mounting seat (7), and the third mounting seat (7) has an annular mounting portion (71) capable of being passed through by a marking pen (2), the annular mounting portion (71) being arranged adjacent to the pen head of the marking pen (2), and a photoelectric detection module (8) is arranged on the inner peripheral wall of the annular mounting portion (71).

9. The automatic marking device according to claim 8, characterized in that: It also includes a controller electrically connected to the photoelectric detection module (8) and the driving member (3), and the controller is configured to control the driving member (3) to act accordingly according to the detection result of the photoelectric detection module (8).

10. The automatic marking device according to claim 9, characterized in that: The driving member (3) is an electric push rod, and the electric push rod can be extended and retracted along the axial direction of the marking pen (2).

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