Integrated nuclear-grade welding wire automatic laser cleaning device

Abstract

The invention belongs to the technical field of nuclear power, and particularly relates to an integrated nuclear-grade welding wire automatic laser cleaning device. According to the integrated nuclear-grade welding wire automatic laser cleaning device, laser cleaning nuclear-grade welding wires are adopted to replace hazardous chemicals, the cleaning effect is improved, and the nuclear-grade welding seam welding quality is guaranteed; the welding wire clamping and driving device and the laser cleaning mechanism are matched to realize stable transmission and efficient cleaning of the welding wire; in addition, the device is provided with a flue gas purifier, pollution of flue gas to the environment in the cleaning process is reduced, and the construction environment is improved. The device disclosed by the invention can guarantee the welding progress and the welding quality during the operation of the nuclear power station. The problems that during nuclear power plant nuclear-grade welding wire recovery, the manual cleaning effect is poor, the used cleaning agent acetone belongs to hazardous chemicals, use is limited, and the cleaning efficiency is low are effectively solved, the cleaning effect is improved, the welding work progress and the welding quality are guaranteed, the construction environment is improved, it is guaranteed that a nuclear power plant overhaul key path is smooth, and unnecessary economic losses are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power, and in particular relates to an integrated nuclear-grade welding wire automatic laser cleaning device. Background Art

[0002] In the process of nuclear power plants distributing nuclear-grade welding wires and recycling unused welding wires after construction, the recycled nuclear-grade welding wires will be contaminated by dust and oil stains and need to be cleaned before being stored in the welding wire warehouse. The current cleaning method is physical manual wiping, and the wiping agent is acetone. The effect of manual wiping depends on the responsibility of the personnel, and the cleaning effect is poor. In addition, acetone is a hazardous chemical and its use is restricted, which affects the cleaning efficiency of nuclear-grade welding wires.

[0003] Contaminated nuclear-grade welding wires recycled and stored in the welding wire warehouse will contaminate other clean welding wires, causing the contaminated nuclear-grade welding wires that are re-issued to be used in nuclear-grade welds, resulting in welding defects such as pores that affect the quality of nuclear-grade welds. Welds cannot be repaired after volume inspection, affecting the key path of nuclear power plant overhauls and causing unnecessary huge economic losses. Therefore, how to effectively recycle and clean contaminated nuclear-grade welding wires has become an urgent problem to be solved. Summary of the invention

[0004] In order to overcome the problems existing in the related art, an integrated nuclear-grade welding wire automatic laser cleaning device is provided.

[0005] According to one aspect of an embodiment of the present disclosure, an integrated nuclear-grade welding wire automatic laser cleaning device is provided, the device comprising: a welding wire clamping and driving device, a laser cleaning mechanism and a fume purification mechanism, the welding wire clamping and driving device comprising a device housing, a plurality of adaptive clamping and centering mechanisms, and an adjustable manual chuck;

[0006] The device housing is the main body of the entire welding wire clamping and driving device, and is used to position and fix the adaptive clamping and centering mechanism, the adjustable manual chuck, the laser cleaning mechanism and the fume purification mechanism, and can cover the fume generated during the laser cleaning process inside;

[0007] Multiple adaptive clamping and centering mechanisms are arranged linearly and fixed in the device housing. The two synchronous pulleys of each adaptive clamping and centering mechanism are symmetrically designed and are used to clamp the welding wire that needs laser cleaning. The position between the two synchronous pulleys of each adaptive clamping and centering mechanism is elastically adjustable, and can be suitable for clamping welding wires of various sizes. In the process of conveying the welding wire, a constant speed motor is used to synchronously drive the synchronous pulley mechanisms of each adaptive clamping and centering mechanism, thereby realizing the conveying of the welding wire; the laser cleaning mechanism is used to sequentially clean the axially conveyed welding wire by laser cleaning.

[0008] In a possible implementation, the device further includes: an adjustable manual chuck; the adjustable manual chuck is used to fix the welding wire tube to the device housing.

[0009] In one possible implementation, the adjustable manual chuck includes a chuck and claws. The chuck is fixed to the outside of the device housing by bolts in fixing holes at the edge. The claws are slidably connected to the chuck and evenly distributed around the center of the chuck. The driving device can drive the claws to gather synchronously to clamp the end edge of the fixed welding wire tube, or open to release the clamped welding wire tube.

[0010] In a possible implementation, the device further includes a pair of pre-friction wheels connected to the inside of the housing and used for clamping the welding wire.

[0011] In a possible implementation, the device also includes a constant-speed friction rotation mechanism, which is disposed in the device housing. The constant-speed motor is also used to drive the constant-speed friction rotation mechanism, which is used to increase friction with the welding wire transmission.

[0012] In a possible implementation, the device also includes an eccentric centering mechanism; the eccentric centering mechanism is installed and fixed on the inner shell of the device, and the center of the hole of the eccentric centering mechanism corresponds to the center of the laser emission range of the laser cleaning gun head. During the operation of the cleaning device, the welding wire automatically adjusts its position after passing through the hole of the eccentric centering mechanism, so that the welding wire position can be aligned with the center of the laser emitted by the laser cleaning gun head 7 of the laser calibrator 11.

[0013] In one possible implementation, the laser cleaning mechanism is used to clean the welding wire by laser cleaning, and the laser cleaning mechanism includes a laser cleaning gun head, a laser cleaning gun motion driving mechanism, and a backpack-type laser light source module, wherein the laser cleaning gun motion driving mechanism is arranged in the device housing, and the laser cleaning gun head is fixed to the laser cleaning gun motion driving mechanism through an interface, and the distance between the laser cleaning gun head and the welding wire is adjusted under the drive of the laser cleaning gun motion driving mechanism, and the backpack-type laser light source module is used to provide the laser cleaning gun head with the light source energy required for cleaning, so as to drive the laser cleaning gun head to perform laser cleaning on the welding wire.

[0014] In one possible implementation, the functions of removing dirt, rust, and coating are achieved by adjusting different parameters of the backpack laser light source module.

[0015] In a possible implementation, the laser cleaning mechanism further includes a laser calibrator, which is used to calibrate and adjust the laser emission angle of the laser cleaning gun head according to the actual position of the welding wire.

[0016] In a possible implementation, the flue gas purifier includes a suction head, a fan and a filter, wherein the suction head can be fixed to the inner side of the device housing by using a dedicated interface.

[0017] The beneficial effects of the present disclosure are as follows: the integrated nuclear-grade welding wire automatic laser cleaning device provided by the present disclosure adopts laser to clean nuclear-grade welding wire instead of hazardous chemicals, thereby improving the cleaning effect and ensuring the welding quality of nuclear-grade welds; the welding wire clamping and driving device and the laser cleaning mechanism cooperate to achieve stable transmission and efficient cleaning of the welding wire; in addition, the device of the present disclosure is equipped with a flue gas purifier to reduce the pollution of flue gas to the environment during the cleaning process and improve the construction environment; the device of the present disclosure can ensure the progress of welding work and the quality of welding during the operation of the nuclear power plant. It effectively solves the problems of poor manual cleaning effect during the recycling of nuclear-grade welding wire in nuclear power plants, the use of the cleaning agent acetone which is a hazardous chemical, limited use, and low cleaning efficiency, improves the cleaning effect, ensures the progress of welding work and welding quality, improves the construction environment, ensures the smoothness of the key path of nuclear power plant overhaul, and reduces unnecessary economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a functional block diagram of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure.

[0019] Figure 2 It is a schematic diagram of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure.

[0020] Figure 3 It is a schematic diagram of a welding wire clamping and driving device of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure.

[0021] Figure 4 It is a schematic diagram of a fume purification device of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure.

[0022] Figure 5 It is a schematic diagram of an adjustable manual chuck of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure.

[0023] In the figure:

[0024] 1-Device housing; 2-Welding wire; 3-Adaptive clamping and centering mechanism; 4-Eccentric centering mechanism;

[0025] 5-Constant speed friction rotation mechanism; 6-Laser cleaning gun motion drive mechanism; 7-Laser cleaning gun head;

[0026] 8-adjustable manual chuck; 9-welding wire barrel; 10-slider fixing seat; 11-laser calibrator;

[0027] 12-fan; 13-filter; 14-pre-friction wheel; 15-chuck; 16-claw; 17-fixing hole. DETAILED DESCRIPTION

[0028] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Unless otherwise defined, the technical and scientific terms used in the present disclosure have the same meanings as those generally understood by those skilled in the art to which the present disclosure belongs; the terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the term "including" and any variations thereof in the present disclosure are intended to cover non-exclusive inclusions. Obviously, the embodiments described in the present disclosure are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative efforts are within the scope of protection of the present disclosure.

[0030] Reference to "embodiments" in this disclosure means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] Figure 1 is a functional block diagram of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure, Figure 2 Schematic diagram of an integrated nuclear-grade welding wire automatic laser cleaning device shown in an embodiment of the present disclosure. Figure 1 and Figure 2 As shown, the device disclosed herein includes: a welding wire clamping and driving device, a laser cleaning mechanism and a fume purification mechanism. The welding wire clamping and driving device includes a device housing 1, multiple adaptive clamping and centering mechanisms 3, an adjustable manual chuck 8, and a constant speed friction rotation mechanism 5.

[0032] The device housing 1 is the main body of the entire welding wire clamping and driving device, and is used to position and fix the adaptive clamping and centering mechanism 3, the adjustable manual chuck 8, the constant speed friction rotation mechanism 5, the laser cleaning mechanism and the fume purification mechanism, and can cover the fume generated during the laser cleaning process inside. The slider fixing seat 10 is set at the lower end of the device housing 1 to support the device housing 1.

[0033] Multiple adaptive clamping and centering mechanisms 3 are arranged linearly and fixed in the device housing 1. The two synchronous pulleys of each adaptive clamping and centering mechanism 3 are symmetrically designed and are used to clamp the welding wire 2 that requires laser cleaning. The position between the two synchronous pulleys of each adaptive clamping and centering mechanism 3 is elastically adjustable, and it has strong adaptive ability and can be suitable for clamping welding wires 2 of various sizes. In the process of conveying the welding wire 2, a constant speed motor is used to synchronously drive the synchronous pulley mechanisms of each adaptive clamping and centering mechanism 3, thereby realizing the conveyance of the welding wire 2.

[0034] The adjustable manual chuck 8 is used to fix the welding wire barrel 9 to the device housing 1. The adjustable manual chuck 8 includes a chuck 15 and claws 16. The chuck 15 is fixed to the outside of the device housing 1 by bolts in the fixing holes 17 at the edge. The claws 16 are slidably connected to the chuck 15 and are evenly distributed around the center of the chuck 15. The driving device can drive the claws 16 to gather synchronously to clamp the end edge of the welding wire barrel 9, or open to release the clamped welding wire barrel 9. After a welding wire barrel is filled with processed welding wire, the current welding wire barrel can be disassembled and replaced with the next empty welding wire barrel.

[0035] In a possible implementation, the device further includes a pair of pre-friction wheels 14 for clamping the welding wire 2 to further increase the clamping stability and the friction force of the transmission.

[0036] In a possible implementation, the device further includes a constant speed friction rotation mechanism 5, and the constant speed motor is also used to drive the constant speed friction rotation mechanism 5, and the constant speed friction rotation mechanism 5 is used to further increase the friction force with the welding wire transmission, which is beneficial to maintaining a uniform speed transmission of the welding wire.

[0037] In a possible implementation, the device further includes an eccentric centering mechanism 4. The eccentric centering mechanism 4 is installed and fixed to the inner shell of the device, and the center of the hole of the eccentric centering mechanism 4 corresponds to the center of the laser emission range of the laser cleaning gun head 7. During the operation of the cleaning device, the welding wire automatically adjusts its position after passing through the hole of the eccentric centering mechanism 4, so that the welding wire position can be aligned with the center of the laser emitted by the laser cleaning gun head 7 of the laser calibrator 11, which is beneficial to improving the welding wire cleaning effect.

[0038] The laser cleaning mechanism is used to clean the welding wire 2 by laser cleaning. The laser cleaning mechanism includes a laser cleaning gun head 7, a laser cleaning gun motion drive mechanism 6, and a backpack-type laser light source module. The laser cleaning gun head 7 can be fixed on the laser cleaning gun motion drive mechanism 6 using a special interface, and the distance between the laser cleaning gun head 7 and the welding wire 2 can be adjusted under the drive of the laser cleaning gun motion drive mechanism 6. The backpack-type laser light source module is used to provide the laser cleaning gun head 7 with the light source energy required for cleaning, so as to drive the laser cleaning gun head 7 to perform laser cleaning on the welding wire 2, and by adjusting parameters (laser wavelength, pulse characteristics, etc.), targeted removal of dirt, rust, coating and other functions can be achieved, while minimizing damage to the base material, ultimately ensuring the cleaning effect and quality, and used in conjunction with the welding wire clamping and driving device.

[0039] In one possible implementation, the laser cleaning mechanism also includes a laser calibrator 11, which is used to calibrate and adjust the laser emission angle of the laser cleaning gun head 7 according to the actual position of the welding wire 2, thereby reducing the emission deviation of the laser cleaning gun head 7 and enabling the welding wire 2 to be fully cleaned.

[0040] The fume purifier is used to collect and filter the fume generated during the laser cleaning process. The fume purifier includes a suction head, a fan 12 and a filter 13, wherein the suction head can be fixed to the inner side of the device housing 1 using a dedicated interface and used in conjunction with the welding wire clamping and driving device.

[0041] In an application example, the following steps are used to operate the device of the present disclosure.

[0042] Step 1: Place the welding wire 2 into multiple adaptive clamping and centering mechanisms 3.

[0043] Step 2, place the welding wire tube 9 into the opened clamping claws 16, start the driving motor, so that the clamping claws 16 on the chuck 15 move toward each other until the welding wire tube 9 is completely clamped.

[0044] Step 3: The welding wire 2 starts to move forward along the axial direction under the friction force of the adaptive clamping and centering mechanism 3 and the pre-friction wheel 14.

[0045] Step 4, start the laser cleaning mechanism to perform laser cleaning on the welding wire 2 advancing along the axial direction.

[0046] Step 5, start the flue gas purification device group to collect and purify the flue gas and discharge it to the outside of the device through the fan 12 and the filter 13.

[0047] Step 6: The welding wire 2 enters the welding wire barrel 9 under the guidance of the rear guide roller.

[0048] The integrated nuclear-grade welding wire automatic laser cleaning device provided by the present disclosure adopts laser to clean nuclear-grade welding wire instead of hazardous chemicals, improves the cleaning effect, and ensures the welding quality of nuclear-grade welds; the welding wire clamping and driving device and the laser cleaning mechanism cooperate to achieve stable transmission and efficient cleaning of the welding wire; in addition, the device disclosed in the present disclosure is equipped with a flue gas purifier to reduce the pollution of flue gas to the environment during the cleaning process and improve the construction environment; the device disclosed in the present disclosure can ensure the progress of welding work and welding quality during the operation of nuclear power plants. It effectively solves the problems of poor manual cleaning effect during the recycling of nuclear-grade welding wire in nuclear power plants, the use of cleaning agent acetone, which is a hazardous chemical, is restricted in use, and has low cleaning efficiency, improves the cleaning effect, ensures the progress of welding work and welding quality, improves the construction environment, ensures the smoothness of key paths for overhaul of nuclear power plants, and reduces unnecessary economic losses.

[0049] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An integrated nuclear-grade welding wire automatic laser cleaning device, characterized in that: The device comprises: a welding wire clamping and driving device, a laser cleaning mechanism and a fume purification mechanism, wherein the welding wire clamping and driving device comprises a device housing, a plurality of adaptive clamping and centering mechanisms, and an adjustable manual chuck; The device housing is the main body of the entire welding wire clamping and driving device, and is used to position and fix the adaptive clamping and centering mechanism, the adjustable manual chuck, the laser cleaning mechanism and the fume purification mechanism, and can cover the fume generated during the laser cleaning process inside; Multiple adaptive clamping and centering mechanisms are arranged linearly and fixed in the device housing. The two synchronous pulleys of each adaptive clamping and centering mechanism are symmetrically designed and are used to clamp the welding wire that needs laser cleaning. The position between the two synchronous pulleys of each adaptive clamping and centering mechanism is elastically adjustable, and can be suitable for clamping welding wires of various sizes. In the process of conveying the welding wire, a constant speed motor is used to synchronously drive the synchronous pulley mechanisms of each adaptive clamping and centering mechanism, thereby realizing the conveying of the welding wire; the laser cleaning mechanism is used to sequentially clean the axially conveyed welding wire by laser cleaning.

2. The device according to claim 1, characterized in that The device further comprises: an adjustable manual chuck; the adjustable manual chuck is used to fix the welding wire tube to the device housing.

3. The device according to claim 2, characterized in that The adjustable manual chuck includes a chuck and claws. The chuck is fixed to the outside of the device housing by bolts in the fixing holes at the edge. The claws are slidably connected to the chuck and evenly distributed around the center of the chuck. The driving device can drive the claws to gather synchronously to clamp the end edge of the fixed welding wire tube, or open to release the clamped welding wire tube.

4. The device according to claim 1, characterized in that The device also includes a pair of pre-friction wheels connected to the inside of the shell and used for clamping the welding wire.

5. The device according to claim 1, characterized in that The device also includes a constant speed friction rotation mechanism, which is arranged in the device housing. The constant speed motor is also used to drive the constant speed friction rotation mechanism, and the constant speed friction rotation mechanism is used to increase the friction force with the welding wire transmission.

6. The device according to claim 1, characterized in that The device also includes an eccentric centering mechanism; the eccentric centering mechanism is installed and fixed on the inner shell of the device, and the center of the hole of the eccentric centering mechanism corresponds to the center of the laser emission range of the laser cleaning gun head. During the operation of the cleaning device, the welding wire automatically adjusts its position after passing through the hole of the eccentric centering mechanism, so that the welding wire position can be aligned with the center of the laser emitted by the laser cleaning gun head 7 of the laser calibrator 11.

7. The device according to claim 1, characterized in that The laser cleaning mechanism is used to clean the welding wire by laser cleaning, and the laser cleaning mechanism includes a laser cleaning gun head, a laser cleaning gun motion driving mechanism, and a backpack-type laser light source module, wherein the laser cleaning gun motion driving mechanism is arranged in the device housing, and the laser cleaning gun head is fixed on the laser cleaning gun motion driving mechanism through an interface, and the distance between the laser cleaning gun head and the welding wire is adjusted under the drive of the laser cleaning gun motion driving mechanism, and the backpack-type laser light source module is used to provide the laser cleaning gun head with the light source energy required for cleaning, so as to drive the laser cleaning gun head to perform laser cleaning on the welding wire.

8. The device according to claim 7, characterized in that The functions of removing dirt, rust and coating can be achieved by adjusting different parameters of the backpack laser light source module.

9. The device according to claim 7, characterized in that The laser cleaning mechanism also includes a laser calibrator, which is used to calibrate and adjust the laser emission angle of the laser cleaning gun head according to the actual position of the welding wire.

10. The device according to claim 1, characterized in that The smoke purifier comprises a suction head, a fan and a filter, wherein the suction head can be fixed on the inner side of the device housing by using a dedicated interface.

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