Photoelectric sensor welding tool with defect detection function and working method thereof

Abstract

The present invention belongs to the technical field of welding tooling, and discloses a photoelectric sensor welding tooling with defect detection function and its working method, including a base, a top seat and a clamping seat, the bottom surface of the top seat is fixedly connected with a mounting sleeve, and the inner surface of the mounting sleeve is fixedly sleeved with a distribution component. The present invention drives the composite detection part to move from bottom to top along the curved trajectory through the arc rod in the curved telescopic part when gas is introduced, and gradually moves from the bottom of the side of the workpiece to the top, so as to perform a comprehensive detection on the side and top of the workpiece, and cooperate with the composite detection part in a synchronous rotating state, and the gap exhaust moves down and resets during the rotation process, so that the arc trajectory in the rotating state is formed on the outside of the workpiece. The rise and fall of the arc trajectory is realized on the outside of the workpiece after welding, and the comprehensive detection of the outer side and top surface of the workpiece after welding is realized, which greatly improves the scope of defect detection after welding, and the actual detection range is wide, the speed is fast, the effect is good, and the final quality of defect detection after welding is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding tooling, and in particular relates to a photoelectric sensor welding tooling with a defect detection function and a working method thereof. Background Art

[0002] Welding tooling refers to equipment or tools used to support, fix and position workpieces during the welding process. They are designed to ensure the correct position and stability of the workpiece during welding so that the welding process can proceed smoothly and achieve the expected welding quality standards. The same industry is also equipped with fixed-mounted photoelectric sensors for defect detection to ensure welding quality inspection of workpieces after welding.

[0003] In the prior art, photoelectric sensor welding tooling usually adds a fixed photoelectric sensor on the outside of the welding workpiece during use, and performs non-contact defect detection on the welded workpiece after welding is completed. However, since the installation position of the photoelectric sensor is fixed and the angle of the workpiece it faces is limited, the area that can actually complete defect detection is small. For a completely welded workpiece, other angles on the side and the top cannot be simply and quickly covered for detection. The actual defect detection range is small and there are certain detection limitations. It is usually necessary to add more photoelectric sensors or adjust the receiving position, and the defect detection effect of actual welding work is not good.

[0004] In addition, after the photoelectric sensor welding tooling in the prior art completes the clamping and welding of the workpiece, a large amount of welding slag and dust remain and adhere to the actual workpiece surface, which further obstructs and interferes with the detection accuracy of the photoelectric sensor during detection. It is usually necessary to add a cleaning step to clean the surface of the workpiece after welding to avoid residue interference with detection. However, the cleaning operation of the workpiece usually requires external cleaning equipment, and the angle and direction are constantly changed to clean the outer side and top surface of the workpiece. The actual thorough cleaning operation is rather cumbersome and the use effect is not good. Summary of the invention

[0005] The object of the present invention is to provide a photoelectric sensor welding tool with defect detection function and a working method thereof to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a photoelectric sensor welding tool with defect detection function and a working method thereof, comprising a base, a top seat and a clamping seat, the bottom surface of the top seat is fixedly connected with a mounting sleeve, the inner surface of the mounting sleeve is fixedly sleeved with a distribution component, the bottom of the distribution component is fixedly connected to the base, the outer surface of the mounting sleeve is rotatably sleeved with a rotating component, the outer surface of the rotating component is fixedly connected with a curved telescopic part distributed around with equal intervals, the top end of the curved telescopic part is fixedly provided with a composite detection part, the top of the distribution component is fixedly provided with a gas supply component, the rotating component rotates along the outer side of the distribution component and intermittently inputs gas into the curved telescopic part, the top of the distribution component is fixedly provided with an injection component, and the upper end of the injection component is located on the top surface of the clamping seat;

[0007] The distribution assembly includes a distribution seat, a connection seat, an isolation frame, a communication groove, a lead-out cavity and a lead-out hole;

[0008] The curved telescopic part comprises an arc tube, an arc rod, a connecting arc tube and a spring.

[0009] Preferably, the distribution seat is fixedly sleeved on the inner surface of the mounting sleeve, the connecting seat is fixedly connected to the bottom surface of the distribution seat, the isolation frame is fixedly connected to the side surface of the distribution seat and is connected to the outlet cavity opened in the distribution seat, the outlet hole is opened at the top of the distribution seat and is connected to the outlet cavity, one end of the connecting groove is opened on the top surface of the distribution seat and the other end is opened on the side surface of the distribution seat, and the connecting groove and the isolation frame are alternately distributed.

[0010] Preferably, the rotating assembly includes a rotating ring and a gear one, the gear one is fixedly sleeved on the outer surface of the rotating ring, the rotating ring is rotatably sleeved on the outer side of the lower end of the mounting sleeve and is located on the outer side of the isolation frame, the outer surface of the mounting sleeve is fixedly sleeved with a sealing ring, the sealing ring is rotatably sleeved in the annular groove inside the rotating ring, and the adjacent isolation frames and the rotating ring form an arc-shaped cavity.

[0011] Preferably, a power unit is fixedly provided on the top of the base, and the power unit includes a motor and a second gear. The motor drives the second gear to rotate and mesh with the first gear, and the power unit drives the meshed rotating component to rotate.

[0012] Preferably, the lower end of the arc tube is fixedly connected to the arc-shaped connecting arc tube, one end of the connecting arc tube is fixedly sleeved in the rotating ring and connected to the inner space of the rotating ring, the arc rod is movably sleeved in the arc tube, one end of the spring is fixedly connected to the arc rod and the other end is fixed in the arc tube.

[0013] Preferably, the composite detection unit includes an assembly seat, a photoelectric sensor, a mounting tube, a spray hole and a fan, the assembly seat is fixed at the top end of the arc rod, the photoelectric sensor is fixedly nested in the front side of the assembly seat, the spray hole is opened at the front side of the assembly seat, the mounting tube is fixed at the back side of the assembly seat, and the fan is installed in the mounting tube and blows air into the spray hole.

[0014] Preferably, the air supply assembly includes a connecting column, a connecting ring and an air pump, the connecting column is fixedly connected to the top of the distribution seat and is connected to the connecting groove, the connecting ring is fixedly connected to the top of the connecting column, and the air pump is fixed to the top of the distribution seat through a fixed seat and its air outlet end is fixedly connected to the connecting ring.

[0015] Preferably, the jet assembly includes a vent pipe, a distribution cover and a jet port, the vent pipe is fixedly connected to the top surface of the distribution seat and is communicated with the outlet hole, the distribution cover is fixedly sleeved on the top of the clamping seat and exceeds the top surface of the clamping seat, the upper end of the vent pipe passes through the top seat and extends into the clamping seat and is communicated with the distribution cover, the jet ports are opened on the outer side surface of the distribution cover and are distributed in a circular shape with equal intervals, and the jet ports are located above the top surface of the clamping seat.

[0016] Preferably, a pre-stored component is fixedly provided on the outer side surface of the curved telescopic part, and the pre-stored component includes a fixed tube and an elastic airbag. The fixed tube is fixedly connected to the arc tube through a bottom tube and is communicated with the arc tube. The pre-stored component is located close to the side of the connected arc tube, and the elastic airbag is fixedly connected in the fixed tube. A bypass hole is opened at the outer end of the fixed tube.

[0017] A working method of a photoelectric sensor welding tool with defect detection function includes the following working steps:

[0018] Step 1: Place the workpiece to be welded on the clamping seat and clamp the workpiece with the clamping parts on both sides, and operate the external robot arm to drive the welding head to perform welding;

[0019] Step 2: After welding, start the power unit and drive the meshing rotating assembly to rotate, so that the curved telescopic part and the composite detection part rotate synchronously, start the photoelectric sensor and fan in the composite detection part, and the fan rotates and sprays the air through the air jet and blows toward the surface of the welded workpiece;

[0020] Step 3: As the rotating assembly rotates, the air supply assembly is started, and the air pump inputs gas into the distribution assembly. When the connecting arc tube in the curved telescopic part is aligned with the arc space where the connecting groove is located, the air volume is input into the connecting arc tube and quickly passes into the pre-stored assembly, and continues to push the arc rod in the arc tube to move along the arc track. The spring stretches, driving the composite detection part to move upward along the curved track from the oblique bottom along the outside of the workpiece, and the photoelectric sensor completes the defect detection of the side and top surfaces of the workpiece;

[0021] Step 4: As the connecting arc tube rotates to connect with the isolation frame during the rotation process, the gas in the pre-stored component and the curved telescopic part is elastically squeezed out, the spring is reset, the composite detection part is gradually reset and moves down along the arc track, and the squeezed gas is input into the jet assembly through the outlet cavity and the outlet hole. The jet assembly blows along the top surface of the clamping seat to blow out welding impurities and dust, completing comprehensive inspection and cleaning.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention utilizes a rotating component to drive the rotation of the curved telescopic part, and cooperates with the gas distribution of the distribution component to respectively realize ventilation and exhaust inside the curved telescopic part during the rotation process. When the gas is introduced, the arc rod in the curved telescopic part drives the composite detection part to move from bottom to top along the curved trajectory, and gradually moves from the bottom of the side of the workpiece to the top, so as to perform a comprehensive inspection of the side and top of the workpiece. In addition, in cooperation with the composite detection part in a synchronous rotating state, the gap exhaust moves down and resets during the rotation process, so that the arc trajectory in the rotating state is formed on the outside of the workpiece. The ups and downs of the arc trajectory can be realized on the outside of the workpiece to realize a comprehensive inspection of the outer side and top surface of the workpiece after welding, which greatly improves the scope of defect detection after welding, expands the actual detection range, has a fast speed, and has a good effect, thereby improving the quality of defect detection after final welding.

[0024] 2. The present invention utilizes the rotating component to rotate outside the distribution component again and intermittently introduces gas into the curved telescopic part, so that the curved telescopic part drives the composite detection part to maintain a rotating state and intermittently move up and down along an arc trajectory, thereby driving the fan to intermittently move up and down in a rotating state, thereby achieving a comprehensive purging treatment of the outer side and top surfaces of the workpiece after welding, avoiding the adhesion of welding debris and dust residues at the defect position, and improving the defect detection effect of the photoelectric sensor on the workpiece after welding by improving the cleaning effect, avoiding the interference of welding debris and dust residues on defect detection, and having a wide actual cleaning range and good effect, further improving the accuracy of post-welding defect detection.

[0025] 3. The present invention reuses the coordinated connection between the gas supply component and the distribution component. When the gas is intermittently input into the curved telescopic part, a part of the gas is pre-stored in the pre-storage component by using the added pre-storage component. When the gas is rotated and released, the final release amount is further increased, so that the stored gas and the propulsion gas are guided and released into the injection component together. The elastic reset force of the spring and the elastic airbag is utilized to quickly squeeze and release the gas, and the injection port arranged around the top of the clamping seat is cooperated so that the ejected gas is blown out along the top surface of the clamping seat, and the residual attached welding debris and impurities are directly blown out. There is no need for special cleaning procedures and equipment to complete automatic cleaning. The actual operation is simple and convenient, and the automatic cleaning effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0028] Figure 3 It is a schematic diagram of the installation of the jetting assembly and the distribution assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the installation of the curved telescopic part and the composite detection assembly of the present invention;

[0030] Figure 5 It is a cross-sectional schematic diagram of the curved telescopic portion of the present invention;

[0031] Figure 6 A schematic diagram of the distribution components of the present invention;

[0032] Figure 7 A cross-sectional schematic diagram of a distribution assembly of the present invention;

[0033] Figure 8 It is a schematic diagram of the rotating assembly of the present invention;

[0034] Fig. 9 It is a schematic diagram of the explosion of the composite detection part of the present invention;

[0035] Fig.10 It is a cross-sectional schematic diagram of the pre-stored component of the present invention;

[0036] Fig.11 It is a schematic diagram of the gas supply assembly of the present invention.

[0037] In the figure: 1. base; 2. mounting sleeve; 3. distribution component; 31. distribution seat; 32. connecting seat; 33. isolation frame; 34. connecting groove; 35. outlet cavity; 36. outlet hole; 4. top seat; 5. clamping seat; 6. rotating component; 61. rotating ring; 62. gear one; 7. power unit; 8. curved telescopic part; 81. arc tube; 82. arc rod; 83. connecting arc tube; 84. spring; 9. composite detection unit; 91. assembly seat; 92. photoelectric sensor; 93. mounting cylinder; 94. ejection hole; 95. fan; 10. air supply component; 101. connecting column; 102. connecting ring; 103. air pump; 11. pre-stored component; 111. fixed cylinder; 112. elastic air bag; 12. jet component; 121. vent pipe; 122. distribution cover; 123. jet port. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 11 As shown, the embodiment of the present invention provides a photoelectric sensor welding tool with defect detection function and a working method thereof, including a base 1, a top seat 4 and a clamping seat 5, the bottom surface of the top seat 4 is fixedly connected with a mounting sleeve 2, the inner surface of the mounting sleeve 2 is fixedly sleeved with a distribution component 3, the bottom of the distribution component 3 is fixedly connected to the base 1, the outer surface of the mounting sleeve 2 is rotatably sleeved with a rotating component 6, the outer surface of the rotating component 6 is fixedly connected with a curved telescopic portion 8 distributed around at equal intervals, the top end of the curved telescopic portion 8 is fixedly provided with a composite detection portion 9, the top of the distribution component 3 is fixedly provided with a gas supply component 10, the rotating component 6 rotates along the outer side of the distribution component 3 and intermittently inputs gas into the curved telescopic portion 8, the top of the distribution component 3 is fixedly provided with an injection component 12, and the upper end of the injection component 12 is located on the top surface of the clamping seat 5;

[0040] The distribution assembly 3 includes a distribution seat 31, a connection seat 32, an isolation frame 33, a connecting groove 34, a lead-out cavity 35 and a lead-out hole 36;

[0041] The curved telescopic portion 8 includes an arc tube 81 , an arc rod 82 , a connecting arc tube 83 and a spring 84 .

[0042] Among them, the distribution seat 31 is fixedly sleeved on the inner surface of the installation sleeve 2, the connecting seat 32 is fixedly connected to the bottom surface of the distribution seat 31, the isolation frame 33 is fixedly connected to the side of the distribution seat 31 and is connected to the outlet cavity 35 opened in the distribution seat 31, the outlet hole 36 is opened at the top of the distribution seat 31 and is connected to the outlet cavity 35, one end of the connecting groove 34 is opened on the top surface of the distribution seat 31 and the other end is opened on the side surface of the distribution seat 31, and the connecting groove 34 and the isolation frame 33 are alternately distributed.

[0043] The distribution assembly 3 is used to guide the introduction and export of the input gas, realize the ventilation promotion of the curved telescopic part 8 during the introduction, and realize the self-cleaning of the top surface of the clamping seat 5 during the export. The isolation frames 33 form an arc space between each other, and are specifically combined with the outer rotating ring 61 and the bottom connecting seat 32. When the isolation frame 33 rotates, the outlet cavity 35 is connected with the curved telescopic part 8 to realize the gas export.

[0044] Among them, the rotating assembly 6 includes a rotating ring 61 and a gear 62. The gear 62 is fixedly sleeved on the outer surface of the rotating ring 61. The rotating ring 61 is rotatably sleeved on the outer side of the lower end of the mounting sleeve 2 and is located on the outer side of the isolation frame 33. A sealing ring is fixedly sleeved on the outer surface of the mounting sleeve 2. The sealing ring is rotatably sleeved in the annular groove inside the rotating ring 61. The adjacent isolation frames 33 and the rotating ring 61 form an arc-shaped cavity.

[0045] Among them, a power unit 7 is fixedly provided on the top of the base 1. The power unit 7 includes a motor and a gear 2. The motor drives the gear 2 to rotate and mesh with the gear 1 62. The power unit 7 drives the meshed rotating component 6 to rotate.

[0046] Among them, the lower end of the arc tube 81 is fixedly connected to the arc-shaped connecting arc tube 83, one end of the connecting arc tube 83 is fixedly sleeved in the rotating ring 61 and connected to the inner space of the rotating ring 61, the arc rod 82 is movably sleeved in the arc tube 81, one end of the spring 84 is fixedly connected to the arc rod 82 and the other end is fixed in the arc tube 81.

[0047] Among them, the composite detection part 9 includes an assembly seat 91, a photoelectric sensor 92, a mounting tube 93, a spray hole 94 and a fan 95. The assembly seat 91 is fixed at the top end of the arc rod 82, the photoelectric sensor 92 is fixedly nested in the front of the assembly seat 91, the spray hole 94 is opened on the front of the assembly seat 91, the mounting tube 93 is fixed on the back of the assembly seat 91, and the fan 95 is installed in the mounting tube 93 and blows the air into the spray hole 94.

[0048] The composite detection unit 9 is equipped with a photoelectric sensor 92 and a fan 95, which can synchronously realize defect detection under rotation and avoid cleaning, thereby improving the detection accuracy. An intermediate cavity is provided inside the ejection hole 94 to gather the air volume, and multiple groups of air ports are used for ejection. The photoelectric sensor 92 is an existing sensor, specifically the Keyence LR-Z series, which is used to realize contactless defect detection.

[0049] Among them, the air supply component 10 includes a connecting column 101, a connecting ring 102 and an air pump 103. The connecting column 101 is fixedly connected to the top of the distribution seat 31 and is connected to the connecting groove 34. The connecting ring 102 is fixedly connected to the top of the connecting column 101. The air pump 103 is fixed to the top of the distribution seat 31 through a fixed seat and its air outlet end is fixedly connected to the connecting ring 102.

[0050] Embodiment 1: After welding, the power unit 7 is started and the meshed rotating assembly 6 is driven to rotate, so that the rotating ring 61 drives the curved telescopic portion 8 and the composite detection portion 9 to rotate synchronously, and the photoelectric sensor 92 and the fan 95 in the composite detection portion 9 are started. The fan 95 rotates and sprays the air through the air jet 123 and blows toward the surface of the workpiece after welding, and during the rotation process, the fan 95 rotates to blow the welding slag and dust from various places outside the workpiece. As the rotating assembly 6 rotates, the air supply assembly 10 is started, and the air pump 103 inputs the gas into the distribution assembly 3 through the connecting ring 102 and the connecting column 101, and inputs the gas into the distribution assembly 3. The gas in the matching component 3 is output to the arc chamber enclosed by the rotating ring 61 and the adjacent isolation frame 33 through the connecting groove 34. When the connecting arc tube 83 in the curved telescopic part 8 is aligned with the arc space where the connecting groove 34 is located, the air volume is input into the connecting arc tube 83, so that the gas introduced pushes the arc rod 82 to move along the arc trajectory in the arc tube 81, and the spring 84 is stretched, driving the composite detection part 9 to move upward along the curved trajectory from the oblique bottom along the outside of the workpiece. The photoelectric sensor 92 completes the mobile detection of defects on the side and top surfaces of the workpiece, and at the same time changes the blowing direction of the fan 95 to complete the comprehensive blowing.

[0051] Firstly, by utilizing the rotating assembly 6 to drive the rotation of the curved telescopic part 8, and cooperating with the gas distribution of the distribution assembly 3, ventilation and exhaust inside the curved telescopic part 8 are realized during the rotation process. When the gas is introduced, the arc rod 82 in the curved telescopic part 8 drives the composite detection part 9 to move from bottom to top along the curved trajectory, and gradually moves from the bottom of the side of the workpiece to the top, so as to perform a comprehensive inspection of the side and top of the workpiece. In addition, in conjunction with the composite detection part 9 in a synchronously rotating state, the gap exhaust moves down and resets during the rotation process, so as to form the ups and downs of the arc trajectory in the rotating state on the outside of the workpiece, so as to realize the comprehensive inspection of the outer side and top surface of the workpiece after welding, which greatly improves the scope of defect detection after welding, and the actual detection range is widened, the speed is fast, the effect is good, and the final defect detection quality after welding is improved.

[0052] In addition, by again utilizing the rotating component 6 to rotate outside the distribution component 3 and intermittently introducing gas into the curved telescopic portion 8, the curved telescopic portion 8 drives the composite detection portion 9 to maintain a rotating state and intermittently move up and down along an arc trajectory, thereby driving the fan 95 to intermittently move up and down in a rotating state, thereby achieving a comprehensive purging treatment of the outer side and top surfaces of the workpiece after welding, thereby avoiding the adhesion of welding debris and dust residues at the defective position, and improving the defect detection effect of the photoelectric sensor on the workpiece after welding by improving the cleaning effect, thereby avoiding the interference of welding debris and dust residues with defect detection, and the actual cleaning range is wide and the effect is good, further improving the accuracy of post-welding defect detection.

[0053] Among them, the jet assembly 12 includes a vent pipe 121, a distribution cover 122 and a jet port 123. The vent pipe 121 is fixedly connected to the top surface of the distribution seat 31 and is communicated with the outlet hole 36. The distribution cover 122 is fixedly sleeved on the top of the clamping seat 5 and exceeds the top surface of the clamping seat 5. The upper end of the vent pipe 121 passes through the top seat 4 and extends into the clamping seat 5 and is communicated with the distribution cover 122. The jet port 123 is opened on the outer surface of the distribution cover 122 and is distributed in a circular shape with equal intervals. The jet port 123 is located above the top surface of the clamping seat 5.

[0054] Among them, a pre-stored component 11 is fixedly provided on the outer side surface of the curved telescopic part 8, and the pre-stored component 11 includes a fixed tube 111 and an elastic airbag 112. The fixed tube 111 is fixedly connected to the arc tube 81 through a bottom tube and is communicated with the arc tube 81. The pre-stored component 11 is located on the side close to the connecting arc tube 83. The elastic airbag 112 is fixedly connected in the fixed tube 111, and a bypass hole is opened at the outer end of the fixed tube 111.

[0055] Embodiment 2: When gas is input into the curved telescopic part 8, part of the air is first guided into the pre-storage component 11, so that the elastic airbag 112 in the pre-storage component 11 expands rapidly, and then pushes the arc rod 82. When the connecting arc tube 83 rotates to connect with the isolation frame 33 during the rotation process, the gas in the pre-storage component 11 and the curved telescopic part 8 is elastically squeezed out, the spring 84 is reset, the composite detection part 9 is gradually reset and moves down along the arc trajectory, and the squeezed gas is input into the injection component 12 through the outlet cavity 35 and the outlet hole 36. The ejected gas entering the injection component 12 is quickly ejected through the ventilation pipe 121, the distribution cover 122 and the injection port 123, and is blown along the top surface of the clamping seat 5 to blow out welding impurities and dust, completing comprehensive detection and cleaning.

[0056] First, by again utilizing the coordinated connection between the air supply component 10 and the distribution component 3, when the gas is intermittently input into the curved telescopic portion 8, a portion of the gas is pre-stored in the pre-storage component 11 by utilizing the additional pre-storage component 11. When the gas is rotated and released, the final release amount is further increased, thereby guiding the stored gas and the propulsion gas to be released into the injection component 12 together. The elastic reset force of the spring 84 and the elastic airbag 112 is utilized to quickly squeeze and release the gas, and in conjunction with the injection port 123 arranged around the top of the clamping seat 5, the ejected gas is blown out along the top surface of the clamping seat 5, and the residual attached welding debris and impurities are directly blown out. No special cleaning process and equipment are required, and automatic cleaning is completed. The actual operation is simple and convenient, and the automatic cleaning effect is good.

[0057] A working method of a photoelectric sensor welding tool with a defect detection function, comprising the following working steps:

[0058] Step 1: Place the workpiece to be welded on the clamping seat 5 and clamp the workpiece with the clamping parts on both sides, and operate the external robot arm to drive the welding head to perform welding;

[0059] Step 2: After welding, the power unit 7 is started and drives the meshing rotating assembly 6 to rotate, so that the curved telescopic unit 8 and the composite detection unit 9 rotate synchronously, and the photoelectric sensor 92 and the fan 95 in the composite detection unit 9 are started. The fan 95 rotates and sprays air through the air jet 123 and blows toward the surface of the welded workpiece;

[0060] Step 3: As the rotating assembly 6 rotates, the air supply assembly 10 is started, and the air pump 103 inputs gas into the distribution assembly 3. When the connecting arc tube 83 in the curved telescopic part 8 is aligned with the arc space where the connecting groove 34 is located, the air volume is input into the connecting arc tube 83 and first quickly enters the pre-stored assembly 11, and continues to push the arc rod 82 to move along the arc track in the arc tube 81. The spring 84 stretches, driving the composite detection part 9 to move upward along the curved track from the oblique bottom along the outside of the workpiece, and the photoelectric sensor 92 completes the defect detection of the side and top surfaces of the workpiece;

[0061] Step 4: As the connecting arc tube 83 rotates to connect with the isolation frame 33 during the rotation process, the gas in the pre-stored component 11 and the curved telescopic portion 8 is elastically squeezed out, the spring 84 is reset, the composite detection portion 9 is gradually reset and moves down along the arc trajectory, and the squeezed gas passes through the outlet cavity 35 and the outlet hole 36 and is input into the jet assembly 12. The jet assembly 12 blows along the top surface of the clamping seat 5 to blow out welding impurities and dust, completing comprehensive detection and cleaning.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photoelectric sensor welding tool with a defect detection function, comprising a base (1), a top seat (4) and a clamping seat (5), characterized in that: The bottom surface of the top seat (4) is fixedly connected to a mounting sleeve (2), the inner surface of the mounting sleeve (2) is fixedly sleeved with a distribution component (3), the bottom of the distribution component (3) is fixedly connected to the base (1), the outer surface of the mounting sleeve (2) is rotatably sleeved with a rotation component (6), the outer surface of the rotation component (6) is fixedly connected to curved telescopic parts (8) distributed around at equal intervals, the top end of the curved telescopic parts (8) is fixedly provided with a composite detection part (9), the top of the distribution component (3) is fixedly provided with a gas supply component (10), the rotation component (6) rotates along the outer side of the distribution component (3) and intermittently inputs gas into the curved telescopic part (8), the top of the distribution component (3) is fixedly provided with an injection component (12), the upper end of the injection component (12) is located on the top surface of the clamping seat (5); The distribution assembly (3) comprises a distribution seat (31), a connection seat (32), an isolation frame (33), a communication groove (34), a guide cavity (35) and a guide hole (36); The curved telescopic portion (8) comprises an arc tube (81), an arc rod (82), a connecting arc tube (83) and a spring (84); The distribution seat (31) is fixedly sleeved on the inner surface of the installation sleeve (2); the connection seat (32) is fixedly connected to the bottom surface of the distribution seat (31); the isolation frame (33) is fixedly connected to the side surface of the distribution seat (31) and is connected to the outlet cavity (35) provided in the distribution seat (31); the outlet hole (36) is provided at the top of the distribution seat (31) and is connected to the outlet cavity (35); one end of the communication groove (34) is provided on the top surface of the distribution seat (31) and the other end is provided on the side surface of the distribution seat (31); the communication groove (34) and the isolation frame (33) are alternately distributed; The rotating assembly (6) comprises a rotating ring (61) and a gear one (62); the gear one (62) is fixedly sleeved on the outer surface of the rotating ring (61); the rotating ring (61) is rotatably sleeved on the outer side of the lower end of the mounting sleeve (2) and is located on the outer side of the isolation frame (33); a sealing ring is fixedly sleeved on the outer surface of the mounting sleeve (2); the sealing ring is rotatably sleeved in a ring groove inside the rotating ring (61); and the adjacent isolation frames (33) and the rotating ring (61) form an arc-shaped cavity.

2. The photoelectric sensor welding tool with defect detection function according to claim 1, characterized in that: A power unit (7) is fixedly provided on the top of the base (1), the power unit (7) comprising a motor and a second gear, the motor drives the second gear to rotate and mesh with the first gear (62), and the power unit (7) drives the meshed rotating assembly (6) to rotate.

3. The photoelectric sensor welding tool with defect detection function according to claim 2, characterized in that: The lower end of the arc tube (81) is fixedly connected to the arc-shaped connecting arc tube (83); one end of the connecting arc tube (83) is fixedly sleeved in the rotating ring (61) and is connected to the inner space of the rotating ring (61); the arc rod (82) is movably sleeved in the arc tube (81); one end of the spring (84) is fixedly connected to the arc rod (82) and the other end is fixed in the arc tube (81).

4. The photoelectric sensor welding tool with defect detection function according to claim 3 is characterized in that: The composite detection unit (9) comprises an assembly seat (91), a photoelectric sensor (92), a mounting tube (93), a spray hole (94) and a fan (95); the assembly seat (91) is fixed to the top end of the arc-shaped rod (82); the photoelectric sensor (92) is fixedly nested on the front side of the assembly seat (91); the spray hole (94) is opened on the front side of the assembly seat (91); the mounting tube (93) is fixed on the back side of the assembly seat (91); and the fan (95) is mounted in the mounting tube (93) and blows air into the spray hole (94).

5. The photoelectric sensor welding tool with defect detection function according to claim 4, characterized in that: The air supply assembly (10) comprises a connecting column (101), a connecting ring (102) and an air pump (103); the connecting column (101) is fixedly connected to the top of the distribution seat (31) and is connected to the connecting groove (34); the connecting ring (102) is fixedly connected to the top of the connecting column (101); the air pump (103) is fixed to the top of the distribution seat (31) via a fixing seat and its air outlet end is fixedly connected to the connecting ring (102).

6. The photoelectric sensor welding tool with defect detection function according to claim 5, characterized in that: The air injection assembly (12) comprises a vent pipe (121), a distribution cover (122) and an air injection port (123); the vent pipe (121) is fixedly connected to the top surface of the distribution seat (31) and communicated with the outlet hole (36); the distribution cover (122) is fixedly sleeved on the top of the clamping seat (5) and exceeds the top surface of the clamping seat (5); the upper end of the vent pipe (121) passes through the top seat (4) and extends into the clamping seat (5) and communicates with the distribution cover (122); the air injection ports (123) are opened on the outer surface of the distribution cover (122) and are distributed in an annular manner with equal intervals; the air injection ports (123) are located above the top surface of the clamping seat (5).

7. The photoelectric sensor welding tool with defect detection function according to claim 6, characterized in that: A pre-stored component (11) is fixedly provided on the outer side surface of the curved telescopic portion (8), the pre-stored component (11) comprising a fixed tube (111) and an elastic airbag (112), the fixed tube (111) being fixedly connected to the arc tube (81) via a bottom tube and being in communication with the arc tube (81), the pre-stored component (111) being located on a side close to the communicating arc tube (83), the elastic airbag (112) being fixedly connected to the fixed tube (111), and a bypass hole being provided at the outer end of the fixed tube (111).

8. The working method of the photoelectric sensor welding tool with defect detection function according to claim 7, characterized in that: The following steps are included: The first step is to place the workpiece to be welded on the clamping seat (5) and clamp the workpiece with the clamping parts on both sides, and operate the external robot arm to drive the welding head to perform welding; Step 2: After welding is completed, the power unit (7) is started to drive the meshing rotating assembly (6) to rotate, so that the curved telescopic unit (8) and the composite detection unit (9) rotate synchronously, and the photoelectric sensor (92) and the fan (95) in the composite detection unit (9) are started. The fan (95) rotates and sprays air through the air jet (123) and blows toward the surface of the workpiece after welding; Step 3: As the rotating assembly (6) rotates, the air supply assembly (10) is started, and the air pump (103) inputs gas into the distribution assembly (3). When the connecting arc tube (83) in the curved telescopic portion (8) is aligned with the arc space where the connecting groove (34) is located, the air volume input into the connecting arc tube (83) is first quickly passed into the pre-stored assembly (11), and continues to push the arc rod (82) in the arc tube (81) to move along the arc trajectory. The spring (84) is stretched, driving the composite detection portion (9) to move upward along the curved trajectory from the oblique bottom along the outer side of the workpiece, and the photoelectric sensor (92) completes the defect detection of the side and top surfaces of the workpiece; Step 4: As the connecting arc tube (83) rotates to connect with the isolation frame (33) during the rotation process, the gas in the pre-stored component (11) and the curved telescopic portion (8) is elastically squeezed out, the spring (84) is reset, the composite detection portion (9) is gradually reset and moves downward along the arc track, and the squeezed gas passes through the outlet cavity (35) and the outlet hole (36) and is input into the jet assembly (12). The jet assembly (12) blows along the top surface of the clamping seat (5) to blow out welding impurities and dust, thereby completing comprehensive detection and cleaning.

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