New energy charging pile shell automatic welding equipment

Abstract

The application discloses a new energy charging pile shell automatic welding equipment, and relates to the technical field of welding equipment, which comprises a control module, a processing fixing module, an image recognition module, a welding positioning module and a processing welding module controlled by the control module, wherein the processing fixing module can fix the shell to be welded; the image recognition module can recognize and draw the processing track line and points on the fixed shell; the welding positioning module indirectly controls the processing welding module to spot weld the initial point position on the surface of the shell; the processing welding module comprises a welding robot and an electron beam gun; the welding robot is movably arranged on a positioning slide rail and has multiple degrees of freedom; and the electron beam gun is arranged on the output end of the welding robot.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to an automated welding equipment for the housing of a new energy charging pile. Background Technology

[0002] With the rise of new energy technologies, electric vehicles and corresponding charging infrastructure are becoming increasingly widespread. As one of the infrastructures for new energy vehicles, the manufacturing process of charging piles places high demands on the quality and safety of the product. Currently, the design and optimization of complex trajectory welding methods should be prioritized, and precise weld positioning and control technologies should be integrated and optimized to ensure high-quality, high-efficiency automated welding.

[0003] Therefore, it is necessary to provide an automated welding equipment for the housing of new energy charging piles to solve the problems mentioned in the background art. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated welding equipment for the shell of a new energy charging pile, comprising: a control module and a processing and fixing module, an image recognition module, a welding positioning module, and a processing and welding module controlled by the control module. The processing and fixing module can fix the shell to be welded. The image recognition module can identify and draw the processing trajectory lines and points on the fixed shell. The welding positioning module indirectly controls the processing and welding module to perform spot welding at initial points on the shell surface. The processing and welding module includes a welding robot and an electron beam gun. The welding robot is movably mounted on a positioning slide rail and has multiple degrees of freedom. The electron beam gun is located at the output end of the welding robot.

[0005] Furthermore, preferably, the control module can control the safety protection module, the exhaust gas treatment module, and the energy supply module to process the welding process. The safety protection module can automatically shut down the machine when the equipment malfunctions. The exhaust gas treatment module includes an exhaust gas treatment mechanism that can treat the exhaust gas generated by the equipment during the welding process. The exhaust gas treatment mechanism also includes components such as filters and discharge pipes to purify and discharge the exhaust gas. The energy supply module includes a vacuum pump, which is used to establish a vacuum environment to protect the electron beam from interference by particles in the air.

[0006] Furthermore, as a preferred embodiment, the processing and fixing module includes: an operating table and positioning sleeves, wherein an automatic control console is installed on the operating table, a control module is installed inside the automatic control console, and a preset frame is fixedly installed inside the operating table. A support seat is fixed on the preset frame, and multiple parallel pairs of guide rails are fixed on the left and right sides of the support seat. Multiple positioning sleeves are slidably installed on the guide rails on both sides. The multiple positioning sleeves are driven by electric push rods that are correspondingly fixed on the support seat. A stop assembly and an auxiliary detection assembly are rotatably installed on the preset frame.

[0007] Furthermore, as a preferred embodiment, the processing and fixing modules are provided in multiple sets, and the welding robot moves along the positioning slide rail to the shell fixed to a single set of processing and fixing modules to perform welding.

[0008] Furthermore, as a preferred embodiment, the image recognition module includes a first detection imaging system and a second detection imaging system fixedly mounted on the pre-set frame. The image recognition module is capable of proportionally recognizing the pre-welded shell and can proportionally draw the welding trajectory line based on the recognized image.

[0009] Furthermore, preferably, both the first and second detection imaging systems can detect the position information of the electron beam gun controlling the welding positioning module to perform initial spot welding on the surface of the housing.

[0010] Furthermore, as a preferred embodiment, the auxiliary detection components are two sets arranged symmetrically on the left and right sides, and their structures are identical. They include: a pneumatic push cylinder and a vacuum suction cup. The pneumatic push cylinder is rotatably mounted on the preset frame in a self-locking manner, and a telescopic rod is slidably mounted inside the pneumatic push cylinder. A fixed support rod is installed at the end of the telescopic rod away from the pneumatic push cylinder, and a vacuum suction cup connected to the vacuum pump is fixed at the end of the fixed support rod.

[0011] A processing method for an automated welding equipment for the housing of a new energy charging pile includes the following steps:

[0012] S1. The machining and fixing module first controls the displacement of the positioning sleeve to fix the shell to be welded;

[0013] S2. The image recognition module images and uploads information about the shell to be processed;

[0014] S3. The control module draws a proportional welding trajectory line, depth, and position information based on the information uploaded by the image recognition module;

[0015] S4. The machining and welding module controls the welding robot to move to the shell fixed by the machining and fixing module. At the same time, the welding robot deflects, and the electron beam gun is monitored by the image recognition module and deflected to a non-welding trajectory line.

[0016] S5. The welding positioning module controls the electron beam gun to perform spot welding on the surface of the shell at the initial point. The image recognition module identifies the spot welding point and uses it as a reference point. The control module records the parameter and merges the position information at S3. The processing and welding module controls the electron beam gun to move to the initial point of the welding trajectory line.

[0017] S6. Starting from the initial point, start the electron beam gun. The control module controls the electron beam gun to move along the trajectory line. After a single trajectory line is completed, the electron beam gun returns to the reference point in the direction of the trajectory line for welding repair.

[0018] S7. Open the gear shift assembly. The control module controls the rotation of the auxiliary detection assembly and coordinates with the positioning clamp of the positioning sleeve to drive the housing to make a relative circular motion around the pneumatic push cylinder as the center. The image recognition module then detects the weld seam of the trajectory line.

[0019] S8. After passing the inspection, the electron beam gun will move to other trajectory lines starting from this reference point, and the control module will control the electron beam gun to move along the trajectory line.

[0020] S9. After the shell of this workstation is welded, the processing and welding module controls the welding robot to move to the next shell to be processed, and repeats steps S1 to S8.

[0021] S10. During spot welding and welding processes, the control module controls the safety protection module, exhaust gas treatment module, and energy supply module to effectively assist in the welding process;

[0022] S11. The welded charging pile casing will then undergo grinding, painting, and other treatments.

[0023] Compared with the prior art, the present invention provides an automated welding equipment for the housing of new energy charging piles, which has the following beneficial effects:

[0024] In this invention, the device uses an image recognition module to draw the welding lines on the surface of the housing in proportion (length, depth, and trajectory). The welding positioning module, in conjunction with the processing welding module, performs spot welding on the surface of the housing and the non-trajectory line initial points. Using these as reference points, the processing welding module welds the trajectory lines. After welding is completed, the image recognition module, positioning jacket, and auxiliary detection components determine and accurately locate defective welds. This facilitates precise weld seam positioning and tracking, prevents blind spots in identification, and reduces the impact of rework. At the same time, it can also automate welding according to actual production needs, improve the quality and efficiency of charging infrastructure, and provide strong support for the development of new energy vehicles. Attached Figure Description

[0025] Figure 1 A schematic diagram of a module for an automated welding equipment for the casing of a new energy charging pile.

[0026] Figure 2 This is a schematic diagram of the overall structure of an automated welding equipment for the casing of a new energy charging pile.

[0027] Figure 3 This is a schematic diagram of the processing and welding module, the exhaust gas treatment module, and the energy supply module in an automated welding equipment for the shell of a new energy charging pile.

[0028] Figure 4 This is a schematic diagram of the welding positioning module in an automated welding equipment for the casing of a new energy charging pile.

[0029] Figure 5 A schematic diagram showing the distribution of multiple welding trajectories on the casing of a charging pile;

[0030] Figure 6 A schematic diagram of the distribution of a single welding trajectory on the charging pile casing;

[0031] Figure 7 for Figure 3 A schematic diagram of the structure of the auxiliary detection component;

[0032] Figure 8 A schematic diagram showing the distribution of auxiliary detection components;

[0033] In the diagram: 1. Operating console; 2. Automatic control console; 3. Preset frame; 4. Bearing seat; 5. Guide rail; 6. Positioning clamp; 7. Electric push rod; 8. First detection imaging system; 9. Second detection imaging system; 10. Stop assembly; 11. Auxiliary detection assembly; 12. Positioning slide rail; 13. Welding robot; 14. Electron beam gun; 15. Vacuum pump; 16. Exhaust gas treatment mechanism; 111. Pneumatic push cylinder; 112. Telescopic rod; 113. Fixed support rod; 114. Vacuum suction cup. Detailed Implementation

[0034] Please see Figures 1-8 In this embodiment of the invention, an automated welding equipment for the shell of a new energy charging pile includes: a control module and a processing and fixing module, an image recognition module, a welding positioning module, and a processing and welding module controlled by the control module. The processing and fixing module can fix the shell to be welded. The image recognition module can identify and draw the processing trajectory lines and points on the fixed shell. The welding positioning module indirectly controls the processing and welding module to perform spot welding at the initial points on the shell surface. The processing and welding module includes a welding robot 13 and an electron beam gun 14. The welding robot 13 is movably mounted on a positioning slide rail 12 and has multiple degrees of freedom. The electron beam gun 14 is located at the output end of the welding robot 13.

[0035] It should be explained that the robotic arm on the welding robot 13 has multiple degrees of freedom, and the electron beam gun 14 is rotatably mounted on the robotic arm. After the electron beam gun 14 rotates, there will be a blind spot (the projection of the electron beam gun 14 coincides with or is offset from that of the robotic arm). When the projection of the electron beam gun 14 coincides with that of the robotic arm, it will affect the image recognition module's establishment of the initial position of the welding trajectory line, and thus a reference point is needed to calculate the movement path of the electron beam gun 14.

[0036] In other words, in this embodiment, after the processing and fixing module fixes the shell to be welded, the image recognition module can image the processing surface of the shell and draw the welding trajectory line (length, depth, trajectory line direction). The welding positioning module controls the electron beam gun 14 to perform spot welding on the non-trajectory line at the initial point, and uses this as a reference point. The image recognition module identifies the point and establishes a corresponding coordinate system by integrating the above data. The control system controls the welding robot 13 and the electron beam gun 14 to shift as a whole to the initial point of the trajectory line.

[0037] Please see Figure 3 In a preferred embodiment, the control module can control the safety protection module, the waste gas treatment module, and the energy supply module to process the welding process. The safety protection module can automatically shut down the machine when the equipment malfunctions. The waste gas treatment module includes a waste gas treatment mechanism 16, which can treat the waste gas generated by the equipment during the welding process. The waste gas treatment mechanism 16 also includes components such as filters and discharge pipes to purify and discharge the waste gas. The energy supply module includes a vacuum pump 15, which is used to establish a vacuum environment to protect the electron beam from interference by particles in the air.

[0038] Please see Figure 2 , Figure 4 In this embodiment, the processing and fixing module includes: an operating table 1 and a positioning sleeve 6. An automatic control console 2 is installed on the operating table 1, and a control module is installed inside the automatic control console 2. A preset frame 3 is fixedly installed inside the operating table 1. A bearing seat 4 is fixedly installed on the preset frame 3. Multiple parallel pairs of guide rails 5 are fixed on the left and right sides of the bearing seat 4. Multiple positioning sleeves 6 are slidably installed on the guide rails 5 on both sides. The multiple positioning sleeves 6 are driven by electric push rods 7 that are correspondingly fixed on the bearing seat 4. A stop assembly 10 and an auxiliary detection assembly 11 are rotatably installed on the preset frame 3.

[0039] That is, the housing is placed on the support seat 4, the electric push rod 7 is activated, so that the positioning sleeve 6 moves relative to or towards the guide rail 5 and fixes the housing. The image recognition module then identifies the welding trajectory line on the surface of the housing. After the welding is completed, the stop assembly 10 and the auxiliary detection assembly 11 are activated to cooperate with the positioning sleeve 6 and the image recognition module to perform auxiliary detection of the weld.

[0040] In a preferred embodiment, the processing and fixing modules are arranged in multiple sets. The welding robot 13 moves along the positioning slide rail 12 to the shell fixed to a single set of processing and fixing modules for welding, which is beneficial for loading and unloading the shell.

[0041] In a preferred embodiment, the image recognition module includes a first detection imaging system 8 and a second detection imaging system 9 fixedly mounted on the pre-mounted frame 3. The image recognition module is capable of proportionally recognizing the pre-welded shell and can proportionally draw the welding trajectory line based on the recognized image.

[0042] In a preferred embodiment, both the first detection imaging system 8 and the second detection imaging system 9 can detect the position information of the electron beam gun 14 controlling the welding positioning module to perform initial spot welding on the surface of the housing.

[0043] It should be noted that after the electron beam gun 14 welds the initial points on the surface of the shell, the image recognition module establishes a proportional coordinate system with the point as the origin, the control system optimizes the optimal route to determine the initial point position information of the trajectory line, and the control module then controls the processing and welding module to automatically weld the trajectory line.

[0044] In other words, when there is a single welding trajectory line, the image recognition module establishes a proportional coordinate system with the initial spot welding point on the shell surface by the electron beam gun 14 as the origin. The control system optimizes the optimal route to determine the initial point position information of the trajectory line. The control module controls the electron beam gun 14 to perform automated welding along this trajectory line. After the welding is completed, the control system, in conjunction with the image recognition module, re-welds the defective weld points in the direction of the electron beam gun 14 returning along the trajectory line. Figure 6 As shown;

[0045] When there are multiple welding trajectory lines, the image recognition module establishes a proportional coordinate system with the initial spot welding point on the shell surface of the electron beam gun 14 as the origin. The control system optimizes the optimal route to determine the initial point position information of the first trajectory line. The control module controls the electron beam gun 14 to perform automated welding along this trajectory line. After welding along this route is completed, the control system, in conjunction with the image recognition module, re-welds the defective weld points in the direction of the electron beam gun 14's return along the trajectory line. Simultaneously, the electron beam gun 14 moves to the initial point position of the first trajectory line, then moves back to the origin. The control system optimizes the optimal route to determine the initial point position information of the second trajectory line, and the control module controls the electron beam gun 14 to perform automated welding along this trajectory line. Other trajectory lines are described above, and the above steps are repeated. Figure 5As shown, this facilitates accurate weld seam positioning and tracking, and prevents the problem of inaccurate positioning of the output end of the electron beam gun 14 due to the overlap of the electron beam gun 14 and the robotic arm projection, which makes the image recognition module more difficult to recognize.

[0046] Please see Figure 7 In this embodiment, the auxiliary detection component 11 consists of two sets arranged symmetrically on the left and right sides, and their structures are identical. They include: a pneumatic push cylinder 111 and a vacuum suction cup 114. The pneumatic push cylinder 111 is rotatably mounted on the pre-set frame 3 and a telescopic rod 112 is slidably mounted inside the pneumatic push cylinder 111. A fixed support rod 113 is installed at one end of the telescopic rod 112 away from the pneumatic push cylinder 111, and a vacuum suction cup 114 connected to the vacuum pump 15 is fixed at the end of the fixed support rod 113.

[0047] That is, when there is a single trajectory line, such as Figure 7 As shown, after welding is completed, the electron beam gun 14 moves to the starting point of the trajectory line and rises. The control module controls the opening of the left-side baffle assembly 10 and releases the auxiliary detection assembly 11 on that side. The upper positioning sleeve 6 will not fix the housing, only the lower positioning sleeve 6 positions and clamps the housing. The control module and the image recognition module control the position of the vacuum suction cup 114 and adsorb the housing. Then, the auxiliary detection assembly 11 on that side is controlled to deflect in the opposite direction, causing the housing to make a relative circular motion with the pneumatic push cylinder 111 as the center. The image recognition module also detects the weld seam of the trajectory line to determine the specific coordinate point. After the detection is completed, the vacuum suction cup 114 is detached from the housing and returns to its original position, and the baffle assembly 10 limits its movement. Alternatively, the right-side baffle assembly 10 is opened and the auxiliary detection assembly 11 on that side is released, only the upper positioning sleeve 6 positions and clamps the housing, and the other steps are the same.

[0048] When there are multiple trajectory lines, such as Figure 8 As shown, after welding is completed, welding can be performed from top to bottom or from bottom to top. Taking the top-down method as an example, only the upper positioning sleeve 6 fixes the shell. The control module controls the opening of the right-side blocking assembly 10 and releases the auxiliary detection assembly 11 on that side. The control module and the image recognition module control the position of the vacuum suction cup 114 and adsorb it onto the shell. Then, the auxiliary detection assembly 11 on that side is controlled to continue to deflect in the same direction, causing the shell to make relative circular motion with the pneumatic push cylinder 111 on that side as the center. The image recognition module is used to detect the weld seam of the trajectory line. After the detection is completed, the vacuum suction cup 114 is detached from the shell and returns to its original position, and the blocking assembly 10 limits its movement. After the second weld seam is completed, the pneumatic push cylinder 111 extends and deflects to the area to be rotated on the shell. The image recognition module is used to detect the weld seam of the trajectory line and determine the specific coordinate point. The bottom-up detection is the opposite of the above.

[0049] That is, after the first weld is inspected and found to be qualified, the electron beam gun 14 deflects to the reference point and continues to move to the next trajectory line; if the first weld is found to be defective, the electron beam gun 14 descends and moves to the corresponding coordinate system for repair welding. After completion, the electron beam gun 14 deflects to the reference point and moves to the next trajectory line, thereby improving the accuracy of welding and the detection of defective products, and thus reducing the subsequent rework of the shell.

[0050] A processing method for an automated welding equipment for the housing of a new energy charging pile includes the following steps:

[0051] S1. The machining and fixing module first controls the displacement of the positioning sleeve 6 to fix the shell to be welded;

[0052] S2. The image recognition module images and uploads information about the shell to be processed;

[0053] S3. The control module draws a proportional welding trajectory line, depth, and position information based on the information uploaded by the image recognition module;

[0054] S4. The processing and welding module controls the welding robot 13 to move to the shell fixed by the processing and fixing module. At the same time, the welding robot 13 deflects, and the electron beam gun 14 is monitored by the image recognition module and deflected to a non-welding trajectory line.

[0055] S5. The welding positioning module controls the electron beam gun 14 to perform spot welding on the surface of the shell at the initial point. The image recognition module identifies the spot welding point and uses it as a reference point. The control module records the parameter and merges the position information at S3. The processing and welding module controls the electron beam gun 14 to move to the initial point of the welding trajectory line.

[0056] S6. Starting from the initial point, start the electron beam gun 14. The control module controls the electron beam gun 14 to move along the trajectory line. After a single trajectory line is completed, the electron beam gun 14 returns to the trajectory line direction for welding and moves to the reference point.

[0057] S7. Open the gear shift assembly 10. The control module controls the rotation of the auxiliary detection assembly 11 and cooperates with the positioning clamp 6 to drive the housing to make a relative circular motion with the pneumatic push cylinder 111 as the center. The image recognition module then detects the weld seam of the trajectory line.

[0058] S8. After passing the inspection, the electron beam gun 14 moves along other trajectory lines starting from this reference point. The control module controls the electron beam gun 14 to move along the trajectory line.

[0059] S9. After the shell of this workstation is welded, the processing and welding module controls the welding robot 13 to move to the next shell to be processed, and repeats steps S1 to S8.

[0060] S10. During spot welding and welding processes, the control module controls the safety protection module, exhaust gas treatment module, and energy supply module to effectively assist in the welding process;

[0061] S11. The welded charging pile casing will then undergo grinding, painting, and other treatments.

[0062] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automated welding equipment for the housing of a new energy charging pile, characterized in that: The system includes a control module and a processing and fixing module, an image recognition module, a welding positioning module, and a processing and welding module controlled by the control module. The processing and fixing module can fix the shell to be welded. The image recognition module can identify and draw the processing trajectory lines and points on the fixed shell. The welding positioning module indirectly controls the processing and welding module to perform spot welding at the initial points on the shell surface. The processing and welding module includes a welding robot (13) and an electron beam gun (14). The welding robot (13) is movably set on the positioning slide rail (12) and has multiple degrees of freedom. The electron beam gun (14) is set at the output end of the welding robot (13). The processing and fixing module includes an operating table (1) and a positioning sleeve (6). An automatic control console (2) is installed on the operating table (1). A control module is installed inside the automatic control console (2). A preset frame (3) is fixed inside the operating table (1). A bearing seat (4) is fixed on the preset frame (3). Multiple parallel pairs of guide rails (5) are fixed on the left and right sides of the bearing seat (4). Multiple positioning sleeves (6) are slidably installed on the guide rails (5) on both sides. The multiple positioning sleeves (6) are driven by electric push rods (7) that are fixedly installed on the bearing seat (4). A stop assembly (10) and an auxiliary detection assembly (11) are rotatably installed on the preset frame (3). The control module can control the safety protection module, the exhaust gas treatment module, and the energy supply module to process the welding process. The energy supply module includes a vacuum pump (15), which is used to establish a vacuum environment to protect the electron beam from interference by particles in the air. The auxiliary detection components (11) are two sets arranged symmetrically on the left and right, and their structures are the same, including a pneumatic push cylinder (111) and a vacuum suction cup (114). The pneumatic push cylinder (111) is rotatably mounted on the pre-set frame (3) and a telescopic rod (112) is slidably mounted inside the pneumatic push cylinder (111). A fixed support rod (113) is installed at the end of the telescopic rod (112) away from the pneumatic push cylinder (111), and a vacuum suction cup (114) connected to the vacuum pump (15) is fixed at the end of the fixed support rod (113).

2. The automated welding equipment for the housing of a new energy charging pile according to claim 1, characterized in that: The safety protection module can automatically shut down when the equipment malfunctions. The waste gas treatment module includes a waste gas treatment mechanism (16), which can treat the waste gas generated by the equipment during the welding process. The waste gas treatment mechanism (16) also includes a filter and an exhaust pipe to purify and discharge the waste gas.

3. The automated welding equipment for the housing of a new energy charging pile according to claim 1, characterized in that: The processing and fixing modules are set in multiple groups. The welding robot (13) moves along the positioning slide rail (12) to the shell fixed to a single group of processing and fixing modules to perform welding.

4. The automated welding equipment for the housing of a new energy charging pile according to claim 1, characterized in that: The image recognition module includes a first detection imaging system (8) and a second detection imaging system (9) fixedly mounted on the pre-mounted frame (3). The image recognition module can recognize the pre-welded shell in proportion and can draw the welding trajectory line in proportion based on the recognized image.

5. The automated welding equipment for the housing of a new energy charging pile according to claim 4, characterized in that: Both the first detection imaging system (8) and the second detection imaging system (9) can detect the position information of the electron beam gun (14) controlled by the welding positioning module to perform initial spot welding on the surface of the shell.

6. An automated welding method for the housing of a new energy charging pile, employing an automated welding equipment for the housing of a new energy charging pile as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. The machining and fixing module first controls the displacement of the positioning sleeve (6) to fix the shell to be welded; S2. The image recognition module images and uploads information about the shell to be processed; S3. The control module draws a proportional welding trajectory line, depth, and position information based on the information uploaded by the image recognition module; S4. The processing and welding module controls the welding robot (13) to move to the shell fixed by the processing and fixing module. At the same time, the welding robot (13) deflects, and the electron beam gun (14) is monitored by the image recognition module and deflected to a non-welding trajectory line. S5. The welding positioning module controls the electron beam gun (14) to perform spot welding on the surface of the shell at the initial point. The image recognition module identifies the spot welding point and uses it as a reference point. The control module records the parameters and merges the position information at S3. The processing and welding module controls the electron beam gun (14) to move to the initial point of the welding trajectory line. S6. Starting from the initial point, start the electron beam gun (14). The control module controls the electron beam gun (14) to move along the trajectory line. After a single trajectory line is completed, the electron beam gun (14) returns to the trajectory line direction for welding and moves to the reference point. S7. Open the gear shift assembly (10), the control module controls the rotation of the auxiliary detection assembly (11) and cooperates with the positioning clamp (6) to drive the housing to make relative circular motion with the pneumatic push cylinder (111) as the center, and the image recognition module detects the weld of the trajectory line. S8. After passing the inspection, the electron beam gun (14) moves along the trajectory line starting from this reference point. S9. After the shell is welded, the processing and welding module controls the welding robot (13) to move to the next shell to be processed, and repeats steps S1 to S8. S10. During spot welding and welding processes, the control module controls the safety protection module, exhaust gas treatment module, and energy supply module to effectively assist in the welding process; S11. The welded charging pile casing will then be polished and painted.

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