Welding equipment

Abstract

The invention discloses welding equipment, and relates to the technical field of water purification filter element manufacturing, the welding equipment is applied to a filter element workpiece, the filter element workpiece comprises a filter element cover and a filter bottle, the welding equipment comprises a main body rack, a welding host and a visual inspection assembly, the main body rack is provided with a lower mold, and the lower mold accommodates the bottom of the filter bottle; the welding main machine is arranged on the main body rack and provided with an upper mold, and the upper mold clamps a filter element cover; the welding host is used for controlling the upper die to drive the filter element cover to rotate downwards, so that the filter element cover and the filter bottle are subjected to rotary fusion welding to form a filter element workpiece; the shooting direction of the visual detection assembly faces the welding position of the filter element workpiece. And the visual detection assembly is used for shooting and processing the welding image of the filter element workpiece to obtain the welding depth of the filter element workpiece, outputting a qualified signal when the welding depth is within a preset range, and outputting an alarm signal when the welding depth exceeds the preset range. The welding depth of the filter element workpiece can be shot and identified, so that the quality stability is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification filter element manufacturing, in particular to welding equipment. Background Art

[0002] As demands for drinking water safety and quality continue to rise, the technological development of water filter cartridges, core components of water purifiers, has garnered significant attention. Early water filter cartridges had relatively simple structures, with the filter cap and filter element often connected using snap-fit ​​or adhesive bonding. However, these methods suffered from insufficient sealing and connection strength, making them unable to withstand the high-pressure water flow required during long-term use. With the advancement of plastics processing technology, spin welding, due to its ability to achieve high-strength connections between plastic parts, has gradually been adopted in the production of water filter cartridges, becoming one of the mainstream technologies for connecting filter caps and filter elements.

[0003] Currently, spin-welding is commonly used between the filter cover and the filter element in the production of water purification filters. Specifically, during the welding process, the filter cover and filter element are separately fixed to two rotating components of the welding equipment. By driving one of the components to rotate at high speed, friction is generated at the connection between the filter cover and the filter element. The heat generated by this friction causes the surface of the plastic part to melt, and at the same time, a certain amount of axial pressure is applied, prompting the melted plastic to fuse together. When the set welding time or number of rotations is reached, the rotation is stopped and the pressure is maintained until the plastic cools and solidifies, thus completing the welded connection between the filter cover and the filter element. This spin-welding solution meets the basic requirements of water purification filters for connection strength and sealing to a certain extent, and has become a relatively mature process method in the industry.

[0004] However, due to factors such as the precision of the welding equipment, the stability of the rotation speed, the uniformity of the pressure, and the processing errors of the plastic parts themselves, the spin welding process can easily lead to inconsistent spin welding depth. Inconsistent spin welding depth leads to unstable pressure-bearing performance of the product. When the water purifier is operating, it is prone to leakage and filter detachment under the impact of high-pressure water flow, resulting in poor user experience. Leakage may also cause damage to the user's home equipment, soaking the floor, and even pose certain safety risks.

[0005] Therefore, a new type of welding equipment is urgently needed to solve the problem of inconsistent spin welding depth of filter element workpieces, which leads to unstable quality of filter element workpieces. Summary of the Invention

[0006] The main purpose of the present invention is to provide a welding device, which aims to solve the problem that the spin welding depth of the filter element workpiece is inconsistent, resulting in unstable quality of the filter element workpiece.

[0007] To achieve the above-mentioned purpose, the welding equipment proposed in the present invention is applied to a filter element workpiece, which includes a filter element cover and a filter bottle. The welding equipment includes a main frame, a welding host and a visual inspection component. The main frame is provided with a lower mold, which is used to accommodate the bottom of the filter bottle; the welding host is arranged on the main frame, and the welding host is provided with an upper mold, which is used to clamp the filter element cover; the welding host is used to control the upper mold to drive the filter element cover to rotate downward, so that the filter element cover and the filter bottle are spin-welded to form a filter element workpiece; the shooting direction of the visual inspection component is set toward the welding point of the filter element workpiece; the visual inspection component is used to shoot and process the welding image of the filter element workpiece to obtain the welding depth of the filter element workpiece, and output a qualified signal when the welding depth is within a preset range, and output an alarm signal when the welding depth exceeds the preset range.

[0008] In one embodiment, the upper mold and the lower mold are both annular, and the upper mold and the lower mold are arranged vertically coaxially; a positioning piece is also provided on the welding main machine, one end of the positioning piece is connected to the welding main machine, and the other end of the positioning piece extends toward the filter bottle, and the other end of the positioning piece is provided with an arc-shaped recess; the arc-shaped recess is used to abut against the outer wall of the filter bottle, so that the filter bottle and the upper mold and the lower mold are arranged vertically coaxially.

[0009] In one embodiment, the visual detection component includes a visual camera, a bracket and a visual control box, one end of the bracket is connected to the visual camera, the other end of the bracket is connected to the main frame, and the visual camera is electrically connected to the visual control box; the welding host is also provided with a warning light, which is electrically connected to the visual control box; the visual control box is used to process the welding image captured by the visual camera to obtain the welding depth, and output a qualified signal when the welding depth is within a preset range, so that the warning light emits green light, and output an alarm signal when the welding depth exceeds the preset range, so that the warning light emits red light; and / or, the welding host is also provided with a visual control panel, which is electrically connected to the welding host and the visual control box respectively; the visual control panel is used to set the spin melting welding depth value of the welding host; the visual control panel is also used to display the welding image.

[0010] In one embodiment, the inner ring wall of the upper mold is provided with a clamping portion, which is used to clamp the filter element cover; the welding main machine is internally provided with a first cylinder, a second cylinder, a welding pressure regulating pipeline and a clamping pressure regulating pipeline; the welding pressure regulating pipeline is connected to the first cylinder, and the first cylinder is transmission-connected to the upper mold; the first cylinder is used to drive the upper mold to rotate downward; the clamping pressure regulating pipeline is connected to the second cylinder, and the second cylinder is transmission-connected to the clamping portion; the second cylinder is used to adjust the opening and closing degree and the clamping force of the clamping portion.

[0011] In one embodiment, the welding host is also provided with an instrument assembly and a regulating valve assembly; the instrument assembly includes a welding pressure gauge and a clamping pressure gauge, the welding pressure gauge is connected to the welding pressure regulating pipeline, and the clamping pressure gauge is connected to the clamping pressure regulating pipeline; the welding pressure gauge is used to indicate the pressure of the spin-melting welding between the filter element cover and the filter bottle; the clamping pressure gauge is used to indicate the clamping pressure of the clamping part on the filter element cover; the regulating valve assembly includes a welding pressure regulating valve and a clamping pressure regulating valve, the welding pressure regulating valve is connected to the welding pressure regulating pipeline, and the clamping pressure regulating valve is connected to the clamping pressure regulating pipeline; the welding pressure regulating valve is used to adjust the pressure of the spin-melting welding between the filter element cover and the filter bottle; the clamping pressure regulating valve is used to adjust the clamping pressure of the clamping part on the filter element cover.

[0012] In one embodiment, an air supply device is further provided in the welding host, and the air supply device is respectively connected to the welding pressure regulating pipeline and the clamping pressure regulating pipeline; a start button and an emergency stop button are also provided on the main frame, and the start button and the emergency stop button are both electrically connected to the air supply device.

[0013] In one embodiment, the welding host is further provided with a welding control panel, which is electrically connected to the welding host; the welding control panel is used to adjust welding parameters.

[0014] In one embodiment, the welding equipment also includes a data module, which is electrically connected to the welding host and the visual inspection component respectively; the data module is used to receive and store the welding image, qualified signal and alarm signal of the visual inspection component to form detection data, and generate a detection data distribution table based on the detection data.

[0015] In one embodiment, the welding equipment also includes a visual laser marking device, which includes a lens module, and the lens module is integrated with a laser emitter; the laser emitter is used to emit laser to the filter element workpiece and form marking content; the lens module is set toward the filter element workpiece, and the lens module is used to photograph the marking content on the filter element workpiece.

[0016] In one embodiment, the visual laser marking device also includes a support, a marking electrical control box, a cooling water tank and a marking control panel. The support is arranged on the main frame and is connected to the lens module; the marking electrical control box is electrically connected to the lens module, the marking control panel and the welding host respectively; the marking electrical control box is used to control the laser emitter to perform marking operations according to preset marking parameters after detecting that the welding host has completed the spin melting welding operation; the marking electrical control box is also used to identify the marking image obtained by the lens module to determine whether the marking content in the marking image is qualified; the marking control panel is used to set the marking parameters of the marking electrical control box; the marking control panel is also used to display the marking image; the cooling water tank is abutted against the marking electrical control box.

[0017] The technical solution of the present invention effectively solves the problem of inconsistent spin-melting welding depth of filter element workpieces through the coordinated cooperation of the main frame, the welding host and the visual inspection component. Among them, the lower mold located on the main frame can stably accommodate the bottom of the filter bottle, the upper mold located on the welding host can accurately clamp the filter cover, and the welding host can control the upper mold to rotate downward to achieve spin-melting welding of the filter cover and the filter bottle; the shooting direction of the visual inspection component is toward the welding part of the filter element workpiece, and it can capture and process the welding image in real time, accurately obtain the welding depth through image analysis, and then form a quantitative judgment of the welding quality; when the visual inspection component detects that the welding depth is within the preset range, it outputs a qualified signal to ensure that the product that meets the quality standards flows into the next process; and when the welding depth of the visual inspection component exceeds the preset range, it outputs an alarm signal in time, which is convenient for the operator or control system to quickly intervene and adjust the welding parameters such as the rotation speed, axial pressure, welding time, etc. of the welding equipment, or remove the current workpiece to avoid the problem of unstable pressure bearing performance of the product caused by inconsistent welding depth.

[0018] Overall, the present invention integrates visual inspection components into the welding equipment to build a closed-loop control system from welding execution to quality inspection, and uses visual inspection components to monitor and accurately feedback the welding depth in real time, effectively compensating for the welding depth deviation problem caused by factors such as equipment accuracy and pressure uniformity in the traditional spin melting process, ensuring that the welding depth between the filter element cover and the filter bottle is always within the preset depth range, thereby significantly improving the welding consistency and quality stability of the filter element workpiece, enabling it to withstand the impact of high-pressure water flow when the water purifier is working, reducing the risks of water leakage, filter element falling off, etc., and reducing equipment damage and safety hazards during user use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the welding equipment provided by the present invention;

[0021] Figure 2 A front view of an embodiment of a welding device provided by the present invention;

[0022] Figure 3 A right side view of an embodiment of the welding equipment provided by the present invention;

[0023] Figure 4This is a left side view of an embodiment of the welding equipment provided by the present invention.

[0024] Description of Figure Numbers:

[0025] 1. Welding equipment;

[0026] 11. Main frame; 111. Lower mold; 112. Start button; 113. Emergency stop button;

[0027] 12. Welding machine; 121. Upper mold; 122. Positioning piece; 123. Warning light; 124. Visual control panel; 125. Instrument assembly; 1251. Welding pressure gauge; 1252. Clamping pressure gauge; 126. Regulating valve assembly; 1261. Welding pressure regulating valve; 1262. Clamping pressure regulating valve; 127. Welding control panel;

[0028] 13. Visual inspection component; 131. Visual camera; 132. Bracket; 133. Visual electric control box;

[0029] 14. Visual laser marking device; 141. Lens module; 142. Support; 143. Marking electric control box; 144. Cooling water tank; 145. Marking control panel;

[0030] 2. Filter element workpiece; 21. Filter element cover; 22. Filter bottle.

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] As demands for drinking water safety and quality continue to rise, the technological development of water filter cartridges, core components of water purifiers, has garnered significant attention. Early water filter cartridges had relatively simple structures, with the filter cap and filter element often connected using snap-fit ​​or adhesive bonding. However, these methods suffered from insufficient sealing and connection strength, making them unable to withstand the high-pressure water flow required during long-term use. With the advancement of plastics processing technology, spin welding, due to its ability to achieve high-strength connections between plastic parts, has gradually been adopted in the production of water filter cartridges, becoming one of the mainstream technologies for connecting filter caps and filter elements.

[0036] Currently, spin-welding is commonly used between the filter cover and the filter element in the production of water purification filters. Specifically, during the welding process, the filter cover and filter element are separately fixed to two rotating components of the welding equipment. By driving one of the components to rotate at high speed, friction is generated at the connection between the filter cover and the filter element. The heat generated by this friction causes the surface of the plastic part to melt, and at the same time, a certain amount of axial pressure is applied, prompting the melted plastic to fuse together. When the set welding time or number of rotations is reached, the rotation is stopped and the pressure is maintained until the plastic cools and solidifies, thus completing the welded connection between the filter cover and the filter element. This spin-welding solution meets the basic requirements of water purification filters for connection strength and sealing to a certain extent, and has become a relatively mature process method in the industry.

[0037] However, due to factors such as the precision of the welding equipment, the stability of the rotation speed, the uniformity of the pressure, and the processing errors of the plastic parts themselves, the spin welding process can easily lead to inconsistent spin welding depth. Inconsistent spin welding depth leads to unstable pressure-bearing performance of the product. When the water purifier is operating, it is prone to leakage and filter detachment under the impact of high-pressure water flow, resulting in poor user experience. Leakage may also cause damage to the user's home equipment, soaking the floor, and even pose certain safety risks.

[0038] Therefore, a new type of welding equipment is urgently needed to solve the problem of inconsistent spin welding depth of filter element workpieces, which leads to unstable quality of filter element workpieces.

[0039] In order to solve the above problems, the present invention provides a welding device.

[0040] See also Figure 1 and Figure 2 In one embodiment of the present invention, the welding equipment 1 is applied to a filter element workpiece 2, which includes a filter element cover 21 and a filter bottle 22. The welding equipment 1 includes a main frame 11, a welding host 12 and a visual inspection component 13. The main frame 11 is provided with a lower mold 111, which is used to accommodate the bottom of the filter bottle 22; the welding host 12 is arranged on the main frame 11, and the welding host 12 is provided with an upper mold 121, which is used to clamp the filter element cover 21; the welding host 12 is used to control the upper mold 121 to drive the filter element cover 21 to rotate downward, so that the filter element cover 21 and the filter bottle 22 are spin-welded to form the filter element workpiece 2; the shooting direction of the visual inspection component 13 is set toward the welding point of the filter element workpiece 2; the visual inspection component 13 is used to shoot and process the welding image of the filter element workpiece 2 to obtain the welding depth of the filter element workpiece 2, and output a qualified signal when the welding depth is within a preset range, and output an alarm signal when the welding depth exceeds the preset range.

[0041] The technical solution of the present invention effectively solves the problem of inconsistent spin welding depth of the filter element workpiece 2 through the coordinated cooperation of the main frame 11, the welding host 12 and the visual inspection component 13. Among them, the lower mold 111 located on the main frame 11 can stably accommodate the bottom of the filter bottle 22, and the upper mold 121 located on the welding host 12 can accurately clamp the filter element cover 21, and the welding host 12 can control the upper mold 121 to rotate downward to realize the spin-melting welding of the filter element cover 21 and the filter bottle 22; the shooting direction of the visual inspection component 13 is toward the welding point of the filter element workpiece 2, and can capture and process the welding image in real time, and accurately obtain the welding depth through image analysis, and then form a quantitative judgment on the welding quality; when the visual inspection component 13 detects that the welding depth is within the preset range, it outputs a qualified signal to ensure that products that meet the quality standards flow into the next process; and when the welding depth of the visual inspection component 13 exceeds the preset range, it outputs an alarm signal in time, which is convenient for the operator or control system to intervene quickly, adjust the welding parameters such as the rotation speed, axial pressure, and welding time of the welding equipment 1, or eliminate the current workpiece to avoid the problem of unstable pressure bearing performance of the product due to inconsistent welding depth.

[0042] Overall, the present invention integrates a visual inspection component 13 in the welding equipment 1 to construct a closed-loop control system from welding execution to quality inspection, and uses the visual inspection component 13 to monitor and accurately feedback the welding depth in real time, effectively compensating for the welding depth deviation problem caused by factors such as equipment accuracy and pressure uniformity in the traditional spin melting process, ensuring that the welding depth of the filter element cover 21 and the filter bottle 22 is always within the preset depth range, thereby significantly improving the welding consistency and quality stability of the filter element workpiece 2, enabling it to withstand the impact of high-pressure water flow when the water purifier is working, reducing the risks of water leakage, filter element falling off, etc., and reducing equipment damage and safety hazards during user use.

[0043] It should be noted that the upper mold 121 can clamp the filter element cover 21 by being provided with a claw-type clamp or adopting a chuck-type structure of a machine tool; other clamping methods can also be adopted, which will not be detailed here.

[0044] In addition, the visual inspection component 13 may include components such as a visual camera and a processing unit. The visual camera is electrically connected to the processing unit, wherein the visual camera is responsible for capturing the welding image, and the processing unit is responsible for processing the welding image, thereby analyzing the welding depth and comparing the welding depth with a preset range to determine whether the welding depth is within the preset range. It should be noted that the preset range is a welding depth range pre-set by a technician based on actual needs, and the range includes two end point values. For example, if the preset range is a closed interval of [a, b], the range includes the end point values ​​of a and b. If the welding depth is within the preset range, it means that the welding depth belongs to the closed interval of [a, b], and if the welding depth exceeds the preset range, it means that the welding depth does not belong to the closed interval of [a, b].

[0045] In addition, the processing unit may store programs such as image processing algorithms and machine learning algorithms to process welding images and analyze them to obtain welding depth. Taking the image processing algorithm as an example, since a weld will remain on the filter element workpiece 2 after spin welding, the image processing algorithm can first pre-process the welding image, such as using Gaussian filtering, median filtering, etc. to remove image noise, and using histogram equalization and other schemes to enhance contrast, thereby improving the visibility of the weld area; then, by using Sobel, Canny and other operators to detect edges in the image, the weld is identified, and then threshold segmentation is used to segment the weld area; and the visual camera can be pre-calibrated, so that pixel measurement values ​​are obtained by measuring the weld area, and the pixel measurement values ​​are converted to actual values ​​in the world coordinate system, and finally the welding depth is obtained. Among them, the calibration method can use Zhang Zhengyou calibration method, or other calibration methods can be used, which are not limited here. For machine learning-based algorithms, pre-trained neural networks such as YOLO and Faster R-CNN can be used to process welding images, thereby locating and selecting the weld area, replacing the segmentation step in traditional image processing algorithms. The selected weld area is then measured and the coordinate system is transformed using calibration data to obtain the weld depth. Furthermore, a dataset of welding images and their corresponding weld depths can be used to train neural networks such as CNN, allowing the neural network to directly output a predicted weld depth based on the welding image. Of course, other methods can also be used to process welding images and obtain weld depths, which will not be discussed here.

[0046] See also Figure 1 and Figure 3 In an embodiment of the present invention, the upper mold 121 and the lower mold 111 are both annular, and the upper mold 121 and the lower mold 111 are vertically coaxially arranged; a positioning member 122 is also provided on the welding host 12, one end of the positioning member 122 is connected to the welding host 12, and the other end of the positioning member 122 extends toward the filter bottle 22, and the other end of the positioning member 122 is provided with an arc-shaped recess; the arc-shaped recess is used to abut against the outer wall of the filter bottle 22, so that the filter bottle 22 is vertically coaxially arranged with the upper mold 121 and the lower mold 111.

[0047] In this embodiment, by adopting the annular upper mold 121 and the lower mold 111 to be arranged coaxially along the vertical axis, and combining the positioning member 122 on the welding main body 12 and its arc-shaped concave design, the filter bottle 22 is effectively ensured to be accurately positioned with the upper mold 121 and the lower mold 111, thereby reducing the deviation problem during the welding process; wherein, the annular upper mold 121 and the lower mold 111 provide a unified alignment basis through the coaxial arrangement, thereby optimizing the rotational friction contact surface between the filter element cover 21 and the filter bottle 22; and the positioning member 122 is provided on the welding main body 12. One end of the positioning member 122 is fixed to the welding host 12, and the other end of the positioning member 122 is provided with an arc-shaped recess. The arc-shaped recess abuts the outer wall of the filter bottle 22, and can guide the filter bottle 22 to automatically align with the vertical center axis through physical contact before welding, avoiding radial misalignment caused by the offset or tilt of the filter bottle 22. This design substantially constrains the lateral and longitudinal movement freedom of the filter bottle 22, ensuring that the welding surface of the filter cover 21 and the filter bottle 22 always remains in a coaxial position during the rotational welding process, significantly improving the uniformity and consistency of the welding depth. This coaxial positioning scheme reduces the problems of unstable rotation speed and uneven pressure distribution caused by installation errors of the filter cover 21 and the filter bottle 22. In conjunction with the visual inspection component 13 described in the embodiment, it can further enhance the precise control of the welding depth, reduce the risk of unstable pressure bearing performance, improve the structural reliability and service life of the filter workpiece 2, and reduce the scrap rate and rework costs.

[0048] Among them, one end of the positioning member 122 can be connected to the welding host 12 through various connection methods such as welding, bolt connection, etc., which will not be repeated here.

[0049] See also Figure 1 and Figure 2 In an embodiment of the present invention, the visual detection component 13 includes a visual camera 131, a bracket 132 and a visual electric control box 133. One end of the bracket 132 is connected to the visual camera 131, and the other end of the bracket 132 is connected to the main frame 11. The visual camera 131 is electrically connected to the visual electric control box 133. The welding host 12 is also provided with a warning light 123, which is electrically connected to the visual electric control box 133. The visual electric control box 133 is used to process the welding image captured by the visual camera 131 to obtain the welding image. depth, and output a qualified signal when the welding depth is within a preset range, so that the warning light 123 emits green light, and output an alarm signal when the welding depth exceeds the preset range, so that the warning light 123 emits red light; and / or, a visual control panel 124 is also provided on the welding host 12, and the visual control panel 124 is electrically connected to the welding host 12 and the visual control box 133 respectively; the visual control panel 124 is used to set the spin melting welding depth value of the welding host 12; the visual control panel 124 is also used to display the welding image.

[0050] In this embodiment, the visual inspection assembly 13, through the coordination of a visual camera 131, a bracket 132, and a visual control box 133, combined with the warning light 123 and visual control panel 124 on the welding host 12, enables intuitive and efficient welding quality monitoring and interaction. Bracket 132 stably mounts the visual camera 131 on the main frame 11, ensuring its precise alignment with the weld, providing physical support for clear welding image capture. The visual camera 131 captures the welding image in real time and transmits it to the visual control box 133, which processes it and accurately calculates the weld depth, providing a quantitative basis for quality judgment. The warning light 123 is electrically connected to the visual control box 133, and uses green light to reflect qualified and red light to reflect alarm visual signals, so that operators can quickly obtain welding results without relying on complex instruments, which significantly improves the intuitiveness and response efficiency of quality inspection; and the setting of the visual control panel 124 improves the human-computer interaction function. The visual control panel 124 not only supports the operator to preset the spin melting welding depth value, and realizes the customization of welding parameters for different models of filter element workpieces 2, but also can display the welding image in real time, which is convenient for manual review or remote monitoring of the welding process. This design uses the integrated "detection-feedback-interaction" architecture to reduce manual detection errors by utilizing the automated processing capabilities of the visual electronic control box 133, and improves operational convenience through the control panel, ensuring that the welding depth is always within the preset range. The warning light 123 is used to improve the intuitiveness of the display of detection results. Combined with the mechanical positioning accuracy of the main frame 11 and the welding host 12, a closed-loop control is formed from parameter setting, process monitoring to result feedback, effectively reducing the scrap rate caused by welding depth deviation, while simplifying the operating process and improving production efficiency, providing a dual guarantee of hardware and software for high-quality welding of the filter element workpiece 2.

[0051] Among them, the visual control box 133 can pre-store the above-mentioned image processing-based algorithm, machine learning-based algorithm and other algorithms, so as to realize the processing of the welding image and obtain the welding depth.

[0052] In addition, as an optional embodiment, the welding host 12 can also be provided with a sound generating device such as a buzzer and a speaker. The sound generating device is electrically connected to the visual control box 133. When the visual control box 133 determines that the welding depth is within the preset range, it outputs a qualified signal, and the sound generating device may not make a sound; when the visual control box 133 determines that the welding depth exceeds the preset range, it outputs a qualified signal, causing the warning light 123 to emit red light, and the sound generating device to emit an alarm, thereby using the sound signal to warn the operator.

[0053] In an embodiment of the present invention, the inner ring wall of the upper mold 121 is provided with a clamping portion, which is used to clamp the filter element cover 21; the welding host 12 has a first cylinder, a second cylinder, a welding pressure regulating pipeline and a clamping pressure regulating pipeline inside; the welding pressure regulating pipeline is connected to the first cylinder, and the first cylinder is transmission-connected to the upper mold 121; the first cylinder is used to drive the upper mold 121 to rotate downward; the clamping pressure regulating pipeline is connected to the second cylinder, and the second cylinder is transmission-connected to the clamping portion; the second cylinder is used to adjust the opening and closing degree and clamping force of the clamping portion.

[0054] In this embodiment, a clamping portion is provided on the inner ring wall of the upper mold 121, and a first cylinder, a second cylinder, and corresponding pressure regulating lines are integrated within the welding main unit 12, thereby achieving precise control and regulation of the clamping force and welding pressure. The clamping portion is used to stably clamp the filter cover 21, and the second cylinder drives the clamping portion through the clamping pressure regulating line to adjust the degree of opening and closing and the clamping force. This can provide an appropriate clamping force for filter covers 21 of different specifications and materials, avoiding slippage and deviation of the filter cover 21 due to loose clamping or damage to the filter cover 21 due to overtightening, and ensuring synchronous and stable rotation of the filter cover 21 and the upper mold 121 during welding. The first cylinder is connected to the upper mold 121 through the welding pressure regulating line, and can accurately control the axial pressure of the upper mold 121 during downward rotation, so that the contact pressure between the filter cover 21 and the filter bottle 22 during welding is uniform and meets the preset process parameters, effectively avoiding welding depth fluctuations or uneven weld surfaces caused by unstable pressure. This design combines the independent adjustment of the clamping force and the welding pressure, which not only ensures the reliability and adaptability of the clamping of the filter cover 21, but also realizes the precise control of the axial pressure during the welding process. Combined with the real-time monitoring of the welding depth by the visual inspection component 13, a full-process controllable system is formed from workpiece fixation, pressure application to quality inspection, which significantly improves the stability of the spin melting welding process.

[0055] Among them, as another optional embodiment, the first air cylinder and the second cylinder can be replaced by the first oil cylinder and the second oil cylinder, and the downward rotation driving of the lower mold 111 and the clamping drive of the clamping part can be achieved by introducing oil into the welding pressure regulating pipeline and the clamping pressure regulating pipeline.

[0056] In addition, it should be noted that the transmission connection between the first cylinder and the upper mold 121 can be achieved through a gear rack transmission mechanism, a screw nut transmission mechanism, etc., wherein the gear rack transmission mechanism can drive the linear reciprocating motion of the first cylinder piston rod through the rack to drive the gear fixed to the upper mold 121 to rotate, thereby driving the upper mold 121 to rotate about the vertical axis; the screw nut transmission mechanism can drive the screw motion through the first cylinder piston rod, and the screw nut pair converts the linear motion into the rotational motion of the nut to drive the upper mold 121 to rotate. The transmission connection between the second cylinder and the clamping part can adopt a connecting rod structure, a wedge block transmission mechanism, etc., wherein the connecting rod structure can drive the clamping part to open and close radially through the connecting rod group through the second cylinder piston rod, forming a connecting rod type clamping claw structure, thereby achieving adaptive clamping of the filter element cover 21; the wedge block transmission mechanism uses the second cylinder piston rod to push the wedge block to move axially, and converts the axial motion into radial motion of the clamping claw through the inclined surface to adjust the opening and closing degree and clamping force.

[0057] See also Figures 1 to 3 In an embodiment of the present invention, an instrument assembly 125 and a regulating valve assembly 126 are also provided on the welding host 12; the instrument assembly 125 includes a welding pressure gauge 1251 and a clamping pressure gauge 1252, the welding pressure gauge 1251 is connected to the welding pressure regulating pipeline, and the clamping pressure gauge 1252 is connected to the clamping pressure regulating pipeline; the welding pressure gauge 1251 is used to indicate the pressure of the spin-melting welding between the filter element cover 21 and the filter bottle 22; the clamping pressure gauge 1252 is used to indicate the clamping pressure of the clamping part on the filter element cover 21; the regulating valve assembly 126 includes a welding pressure regulating valve 1261 and a clamping pressure regulating valve 1262, the welding pressure regulating valve 1261 is connected to the welding pressure regulating pipeline, and the clamping pressure regulating valve 1262 is connected to the clamping pressure regulating pipeline; the welding pressure regulating valve 1261 is used to adjust the pressure of the spin-melting welding between the filter element cover 21 and the filter bottle 22; the clamping pressure regulating valve 1262 is used to adjust the clamping pressure of the clamping part on the filter element cover 21.

[0058] In this embodiment, by providing an instrument group and a regulating valve assembly 126 on the welding host 12, pressure monitoring and parameter adjustment during the welding process are achieved. The welding pressure gauge 1251 and the clamping pressure gauge 1252 are respectively connected to corresponding pressure regulating lines, and can display the axial pressure of the spin-welding between the filter cover 21 and the filter bottle 22, as well as the clamping pressure of the clamping portion on the filter cover 21, in real time and intuitively. This provides the operator with a clear pressure data reference, avoiding problems such as unstable welding depth or filter cover 21 clamping failure caused by pressure deviation. The welding pressure regulating valve 1261 and the clamping pressure regulating valve 1262 allow the operator to manually adjust the welding pressure and clamping pressure according to the different specifications of the filter workpiece 2, making the equipment adaptable to a variety of filter cover 21 and filter bottle 22 models, significantly improving the process flexibility and applicability of the welding equipment 1. This embodiment achieves monitoring and adjustment of key pressure parameters during the welding process through the coordinated cooperation of pressure monitoring instruments and regulating valves.

[0059] During actual operation, the operator can adjust the welding pressure regulating valve 1261 and the clamping pressure regulating valve 1262, and observe the welding pressure gauge 1251 and the clamping pressure gauge 1252 to know whether the welding pressure and the clamping pressure have been adjusted to the appropriate range, and then start the spin welding operation to avoid improper clamping or abnormal welding pressure.

[0060] See also Figure 1 In an embodiment of the present invention, an air supply device (not shown in the figure) is also provided in the welding host 12, and the air supply device is respectively connected to the welding pressure regulating pipeline and the clamping pressure regulating pipeline; a start button 112 and an emergency stop button 113 are also provided on the main frame 11, and the start button 112 and the emergency stop button 113 are both electrically connected to the air supply device.

[0061] In this embodiment, an air supply device is provided within the welding mainframe 12 and is connected to the welding pressure regulating pipeline and the clamping pressure regulating pipeline. The air supply device serves as a power source to provide stable air pressure to the welding pressure regulating pipeline and the clamping pressure regulating pipeline, ensuring that the first cylinder and the second cylinder can obtain continuous and uniform power output, thereby accurately controlling the welding pressure of the upper mold 121 and the clamping force of the clamping portion, thereby avoiding pressure fluctuations caused by unstable air source, which may cause inconsistent welding depth or failure to clamp the filter cover 21. In addition, this embodiment also provides a start button 112 and an emergency stop button 113 on the main frame 11, and the start button 112 and the emergency stop button 113 are electrically connected to the air supply device. The start button 112 controls the start and stop of the air supply device through the electrical connection, thereby realizing convenient startup of the welding process. The emergency stop button 113 quickly cuts off the power output of the air supply device when it detects abnormal air pressure, equipment failure, or operational danger, and urgently stops the operation of each cylinder to prevent damage to the workpiece or safety accidents caused by pressure loss.

[0062] As an optional implementation, the air supply device can be set as an air compressor to meet the air supply demand.

[0063] See also Figure 1 In an embodiment of the present invention, a welding control panel 127 is further provided on the welding host 12, and the welding control panel 127 is electrically connected to the welding host 12; the welding control panel 127 is used to adjust welding parameters.

[0064] In this embodiment, the welding control panel 127 provided on the welding host 12 is electrically connected to the welding host 12, thereby realizing convenient and digital adjustment of welding parameters. Among them, the welding control panel 127 can support the operator to adjust key welding parameters such as rotation speed, welding time, axial pressure, etc. in real time according to the specifications, materials and welding process requirements of different filter workpieces 2, so that the equipment can adapt to diverse production needs and significantly improve the process flexibility and scope of application of the welding equipment 1. By adopting the welding control panel 127 and integrating the welding parameter adjustment function into the control panel, this embodiment not only simplifies the operating process and reduces the cost of manual intervention, but also improves the controllability of the welding process through digital control, providing intelligent operation guarantee for efficient and high-quality welding in large-scale production.

[0065] In an embodiment of the present invention, the welding equipment 1 also includes a data module, which is electrically connected to the welding host 12 and the visual detection component 13 respectively; the data module is used to receive and store the welding image, qualified signal and alarm signal of the visual detection component 13 to form detection data, and generate a detection data distribution table based on the detection data.

[0066] In this embodiment, a data module is provided and electrically connected to the welding host 12 and the visual inspection component 13, thereby realizing data collection and data analysis of the welding process. Among them, the data module can receive and store the welding images, qualified signals, and alarm signals output by the visual inspection component 13 in real time, forming a complete detection data chain, providing digital support for the traceability of welding quality, and facilitating the operator or quality control system to review and analyze historical welding data and accurately locate batches or specific filter element workpieces 2 with abnormal welding depths. In addition, the data module generates a detection data distribution table based on the detection data. By statistically analyzing the distribution pattern of welding depth, it can intuitively reflect the stability of the welding equipment 1 and the rationality of the process parameters, thereby providing a quantitative basis for equipment maintenance and parameter optimization, and effectively avoiding quality risks caused by irregular fluctuations in welding depth. By integrating data storage and analysis functions into the welding equipment 1, this embodiment not only realizes the full process recording of welding quality data, but also improves the intelligent control level of the production process through the visual presentation of the data distribution table, providing data-driven technical support for continuously improving the welding quality of the filter element workpiece 2 and reducing quality costs.

[0067] As an optional implementation, the detection data distribution table may include the detection time, detection batch, corresponding welding depth and qualified / unqualified status, so as to facilitate subsequent data query and analysis.

[0068] See also Figure 1 and Figure 2 In an embodiment of the present invention, the welding equipment 1 also includes a visual laser marking device 14, which includes a lens module 141. The lens module 141 is integrated with a laser emitter; the laser emitter is used to emit laser light to the filter element workpiece 2 and form marking content; the lens module 141 is set toward the filter element workpiece 2, and the lens module 141 is used to photograph the marking content on the filter element workpiece 2.

[0069] In this embodiment, by providing a visual laser marking device 14, the automatic marking of the filter element workpiece 2 and the shooting of the marking content are realized. Specifically, the laser emitter emits a laser to the filter element workpiece 2 and forms the marking content (such as product model, batch number, welding parameters, etc.), and uses the high-precision characteristics of laser marking to ensure that the marking is clear and not easy to wear, providing a reliable physical identification basis for the full life cycle traceability of the filter element workpiece 2; the lens module 141 is set towards the filter element workpiece 2 and shoots the marking content, thereby retaining the image information of the marking content, which is convenient for technicians to judge whether the marking content is qualified based on the image, and is convenient for the later traceability analysis of the marking content. By integrating the marking function with the visual shooting, this embodiment not only improves the standardization and traceability of the identification of the filter element workpiece 2, but also realizes efficient product quality control.

[0070] See also Figure 1 、 Figure 2 and Figure 4 In an embodiment of the present invention, the visual laser marking device 14 also includes a support 142, a marking electrical control box 143, a cooling water tank 144 and a marking control panel 145. The support 142 is set on the main frame 11, and the support 142 is connected to the lens module 141; the marking electrical control box 143 is electrically connected to the lens module 141, the marking control panel 145 and the welding host 12 respectively; the marking electrical control box 143 is used to control the laser emitter to perform marking according to preset marking parameters after detecting that the welding host 12 completes the spin melting welding operation; the marking electrical control box 143 is also used to identify the marking image obtained by the lens module 141 to determine whether the marking content in the marking image is qualified; the marking control panel 145 is used to set the marking parameters of the marking electrical control box 143; the marking control panel 145 is also used to display the marking image; the cooling water tank 144 is in contact with the marking electrical control box 143.

[0071] In this embodiment, automated marking and intelligent quality control are achieved through the cooperation of the lens module 141, the support 142, the marking electric control box 143, the cooling water tank 144 and the marking control panel 145. Specifically, the support 142 stably mounts the lens module 141 on the main frame 11 to ensure the position accuracy of laser marking and image acquisition; the marking control box 143 is electrically connected to the welding host 12, and can automatically trigger the laser emitter to mark according to preset parameters after detecting that welding is completed, thereby realizing the automated linkage between the marking operation and the welding process, and avoiding process delays or parameter deviations caused by manual intervention; in addition, the marking control box 143 identifies the marking image taken by the lens module 141, and judges the eligibility of the marking content in real time to form quality monitoring; in addition, the marking control panel 145 supports the operator to set marking parameters and display marking images, which not only realizes convenient human-machine interaction, but also facilitates real-time monitoring of the marking process; and the cooling water tank 144 is in contact with the marking control box 143, and ensures that the control box maintains a stable operating temperature during long-term operation through physical heat dissipation, thereby avoiding control module failure or reduced marking accuracy due to overheating. This embodiment integrates the marking operation into the spin melting welding production process through the collaboration of multiple components in the visual laser marking device 14. While improving the degree of automation of marking and the real-time performance of quality inspection, it ensures the operational reliability of the marking control box 143 through the cooling water tank 144, effectively solving the problems of the disconnection between the traditional marking operation process and the welding process, delayed quality inspection and insufficient equipment stability, and providing technical guarantee for the efficient production and full life cycle traceability of the filter element workpiece 2.

[0072] Among them, as an optional implementation method, the data module can be electrically connected to the marking control box 143. The data module can receive and store relevant marking data such as the marking image and whether the marking content is qualified provided by the marking control box 143, and generate a marking data distribution table based on the marking data, so that technicians can perform data analysis on the detection data distribution table and the marking data distribution table to achieve full process data traceability from welding to marking.

[0073] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A welding device, characterized in that: Applied to a filter core workpiece, the filter core workpiece includes a filter core cover and a filter bottle, and the welding equipment includes: A main frame, wherein the main frame is provided with a lower mold, and the lower mold is used to accommodate the bottom of the filter bottle; A welding host, which is arranged on the main frame and is provided with an upper mold, and the upper mold is used to clamp the filter element cover; the welding host is used to control the upper mold to drive the filter element cover to rotate downward, so that the filter element cover and the filter bottle are spin-welded, thereby forming the filter element workpiece; A visual inspection component is provided with a shooting direction toward the welding point of the filter element workpiece; the visual inspection component is used to shoot and process the welding image of the filter element workpiece to obtain the welding depth of the filter element workpiece, and output a qualified signal when the welding depth is within a preset range, and output an alarm signal when the welding depth exceeds the preset range.

2. The welding device according to claim 1, wherein: The upper mold and the lower mold are both annular, and the upper mold and the lower mold are arranged vertically coaxially; A positioning piece is also provided on the welding main unit, one end of the positioning piece is connected to the welding main unit, and the other end of the positioning piece extends toward the filter bottle. The other end of the positioning piece is provided with an arc-shaped recess; the arc-shaped recess is used to abut against the outer side wall of the filter bottle so that the filter bottle and the upper mold and the lower mold are arranged vertically coaxially.

3. The welding device according to claim 2, characterized in that The visual detection assembly includes a visual camera, a bracket and a visual electric control box, one end of the bracket is connected to the visual camera, the other end of the bracket is connected to the main frame, and the visual camera is electrically connected to the visual electric control box; The welding host is also provided with a warning light, which is electrically connected to the visual electric control box; The visual electric control box is used to process the welding image captured by the visual camera to obtain the welding depth, and output a qualified signal when the welding depth is within a preset range, so that the warning light emits green light, and output an alarm signal when the welding depth exceeds the preset range, so that the warning light emits red light; And / or, the welding host is also provided with a visual control panel, which is electrically connected to the welding host and the visual control box respectively; the visual control panel is used to set the spin welding depth value of the welding host; the visual control panel is also used to display the welding image.

4. The welding device according to claim 2, wherein: The inner ring wall of the upper mold is provided with a clamping portion, and the clamping portion is used to clamp the filter element cover; The welding main machine has a first cylinder, a second cylinder, a welding pressure regulating pipeline and a clamping pressure regulating pipeline; the welding pressure regulating pipeline is connected to the first cylinder, and the first cylinder is connected to the upper mold in a transmission manner; the first cylinder is used to drive the upper mold to rotate downward; The clamping pressure regulating pipeline is communicated with the second cylinder, and the second cylinder is transmission-connected with the clamping portion; the second cylinder is used to adjust the opening and closing degree and the clamping force of the clamping portion.

5. The welding device according to claim 4, wherein: The welding host is also provided with an instrument assembly and a regulating valve assembly; The instrument assembly includes a welding pressure gauge and a clamping pressure gauge, the welding pressure gauge is communicated with the welding pressure regulating pipeline, and the clamping pressure gauge is communicated with the clamping pressure regulating pipeline; the welding pressure gauge is used to indicate the pressure of the spin-welding between the filter element cover and the filter bottle; the clamping pressure gauge is used to indicate the clamping pressure of the clamping portion on the filter element cover; The regulating valve assembly includes a welding pressure regulating valve and a clamping pressure regulating valve, the welding pressure regulating valve is connected to the welding pressure regulating pipeline, and the clamping pressure regulating valve is connected to the clamping pressure regulating pipeline; the welding pressure regulating valve is used to adjust the pressure of the spin-melting welding between the filter element cover and the filter bottle; the clamping pressure regulating valve is used to adjust the clamping pressure of the clamping part on the filter element cover.

6. The welding device according to claim 4, wherein: The welding host is also provided with an air supply device, which is communicated with the welding pressure regulating pipeline and the clamping pressure regulating pipeline respectively; The main frame is also provided with a start button and an emergency stop button, and the start button and the emergency stop button are both electrically connected to the air supply device.

7. The welding device according to claim 1, wherein: The welding host is also provided with a welding control panel, which is electrically connected to the welding host; the welding control panel is used to adjust welding parameters.

8. The welding device according to claim 1, wherein: The welding equipment further includes a data module, wherein the data module is electrically connected to the welding host and the visual detection component respectively; The data module is used to receive and store the welding image of the visual inspection component, the qualified signal and the alarm signal to form inspection data, and generate an inspection data distribution table based on the inspection data.

9. The welding device according to any one of claims 1 to 8, characterized in that The welding equipment also includes a visual laser marking device, which includes a lens module, and the lens module is integrated with a laser emitter; the laser emitter is used to emit laser to the filter element workpiece and form marking content; the lens module is set towards the filter element workpiece, and the lens module is used to photograph the marking content on the filter element workpiece.

10. The welding device according to claim 9, characterized in that The visual laser marking device further includes a support, a marking electric control box, a cooling water tank and a marking control panel, wherein the support is arranged on the main frame and connected to the lens module; The marking control box is electrically connected to the lens module, the marking control panel, and the welding host respectively; the marking control box is used to control the laser emitter to perform a marking operation according to preset marking parameters after detecting that the welding host has completed the spin melting welding operation; the marking control box is also used to identify the marking image captured by the lens module to determine whether the marking content in the marking image is qualified; The marking control panel is used to set the marking parameters of the marking electric control box; the marking control panel is also used to display the marking image; The cooling water tank is in contact with the marking electric control box.

Images