Continuous automatic welding device and welding method for multi-layer filter piece type filter element

Abstract

The invention relates to the technical field of filter element machining, in particular to a multilayer filter piece type filter element continuous automatic welding device which comprises a cross-shaped sliding table module, a fixing support, a positioner, a welding tool, a power distribution cabinet assembly, an industrial personal computer, a PLC and a welding machine. According to the automatic welding device, automatic identification and automatic welding of welding seams of the filter element are achieved, the labor intensity of workers is greatly reduced, and meanwhile the consistency of the welding quality of the filter element is guaranteed through visual identification and automatic program control.

Description

Technical Field

[0001] The invention relates to the technical field of filter element processing, in particular to a processing technology for continuous welding of multi-layer filter discs, and specifically to a multi-layer filter disc type filter element continuous automatic welding device and a welding method. Background Art

[0002] A certain type of filter element is composed of multiple groups of filter pieces welded together, and the welds need to be aligned and welded one by one. Due to the cumulative tolerances of the parts themselves, assembly gaps, and tooling tolerances, it is impossible to estimate the distance between welds and automatic welding cannot be achieved.

[0003] In the traditional process, workers load gaskets, filters, copper sheets for welding protection, and filters into welding tools one by one in that order. They then use manual argon arc welding to weld each weld. However, due to the large number of welds, the welding process is labor-intensive and workers cannot weld for a long time.

[0004] Therefore, it is necessary to propose a device and a welding method that can realize automatic welding of multi-layer filter discs to solve the problem of high labor intensity of manual welding. Summary of the invention

[0005] Technical problem solved by the present invention: The present invention provides a multi-layer filter element continuous automatic welding device and welding method, which are used to realize automatic identification of welds and continuous welding of multi-layer filter element, replacing manual welding.

[0006] Technical solution of the present invention

[0007] A multi-layer filter element continuous automatic welding device, comprising a cross slide module 1, a fixed bracket 2, a positioner 3, a welding tool 4, a power distribution cabinet assembly 5, an industrial computer 7, a PLC 8 and a welding machine 9, wherein there are two fixed brackets 2, both of which are installed on the power distribution cabinet assembly 5, one of which is equipped with a cross slide module 1, and the other fixed bracket is equipped with a strip light source 2-6 and an industrial lens 2-5, the positioner 3 is installed on the power distribution cabinet assembly 5, and the welding tool 4 is installed on the positioner 3, the positioner 3 can drive the welding tool 4 to rotate, the cross slide module 1 is provided with welding guns 1-8, and the welding guns 1-8 are located above the welding tool 4, the industrial computer 7 and the PLC8 are arranged inside the power distribution cabinet assembly 5, the industrial computer 7 is connected with the PLC8, the PLC8 is connected with the cross slide module 1 and the positioner 3, and the movement of the cross slide module 1 and the positioner 3 is controlled, the welding machine 9 is arranged inside the power distribution cabinet assembly 5, and is connected with the PLC8, and is controlled by the PLC8, and the welding machine 9 is connected with the welding guns 1-8.

[0008] Furthermore, it also includes an external operation panel 6 , which is arranged on the power distribution cabinet component 5 and connected to the industrial computer 7 .

[0009] Furthermore, the two fixed brackets 2 are bracket assembly A1-1 and bracket assembly B2-1 respectively.

[0010] Further, the cross slide module 1 includes a first connecting plate 1-2; a Y-axis screw slide module assembly 1-3; a servo motor 1-4; a welding gun adjustment fixing bracket 1-5; a Z-axis screw slide module assembly 1-6; a second connecting plate 1-7; a welding gun 1-8; the Y-axis screw slide module assembly 1-3 is fixed to the bracket assembly A1-1 through the first connecting plate 1-2, a first slider is set on the Y-axis screw slide module assembly 1-3, and the Z-axis screw slide module assembly 1-6 is connected to the first slider on the Y-axis screw slide module assembly 1-3 through the second connecting plate 1-7. The Z-axis screw slide module assembly 1-6 can move along the Y direction on the Y-axis screw slide module assembly 1-3 under the drive of the first slider. The Z-axis screw slide module assembly 1-6 is provided with a second slider. The welding gun adjustment fixing bracket 1-5 is fixed on the second slider of the Z-axis screw slide module assembly 1-6. The welding gun adjustment fixing bracket 1-5 can be adjusted on the second slider. Driven by, it moves along the Z direction on the Z-direction lead screw slide module assembly 1-3, and the welding gun 1-8 is fixed on the welding gun adjustment fixed bracket 1-5, wherein the Y-direction lead screw slide module assembly 1-3 and the Z-direction lead screw slide module assembly 1-6 are respectively connected to the corresponding servo motor 1-4, and the servo motor 1-4 receives the signal data transmitted to the PLC8 by the industrial computer 7. One of the servo motors 1-4 drives the lead screw in the Y-direction lead screw slide module assembly 1-3 to rotate, driving the first slider on the lead screw to move along the Y direction; the other servo motor 1-4 drives the lead screw in the Z-direction lead screw slide module assembly 1-6 to rotate, driving the second slider on the lead screw to move along the Z direction, and the first slider and the second slider can drive the welding gun 1-8 to move in the Y and Z directions, ensuring that the welding gun 1-8 can face the weld each time it moves; the welding gun adjustment fixed bracket 1-5 can realize the adjustment of the angle of the welding gun 1-8 within an angle of 0 to 90 degrees, thereby ensuring the quality of the weld.

[0011] Furthermore, two light source fixing brackets 2-2 are slidably arranged on the bracket assembly B2-1, and a camera fixing bracket 2-3 is slidably arranged and is located between the two light source fixing brackets 2-2; the industrial camera 2-4 and the industrial lens 2-5 are installed at the lower end of the camera fixing bracket 2-3, and the strip light source 2-6 is installed at the lower end of the light source fixing bracket 2-2; the bracket assembly B2-1 is provided with a slide groove, and the light source fixing bracket 2-2 and the camera fixing bracket 2-3 can slide on the slide groove and be locked by screws; the industrial lens 2-5 is connected to the industrial computer 7 via Ethernet.

[0012] Furthermore, the positioner 3 includes a three-jaw chuck 3-1, a connector 3-2, a bearing 3-3, a key 3-4, a support 3-5, a planetary reducer 3-6 and a stepper motor 3-7. The support 3-5 is fixed to the power distribution cabinet assembly 5, the bearing 3-3 is mounted on the support 3-5, one end of the connector 3-2 is fixed to the three-jaw chuck 3-1, and the other end passes through the bearing 3-3 and is connected to the planetary reducer 3-6, and is limited by the key 3-4. The housing of the planetary reducer 3-6 is connected to the support 3-5, and the stepper motor 3-7 is connected to the planetary reducer 3-6. The motor 3-7 is connected to the planetary reducer 3-6; the welding machine 9 is controlled by the PLC8 to realize that after the welding gun 1-8 starts arcing, the stepper motor 3-7 drives the three-jaw chuck 3-1 to rotate at the set speed, and the rotation angle of a single weld is adjustable in the range of 0 to 720°. After the rotation is completed, the PLC8 controls the welding machine 9 to extinguish the arc, and the Y-axis screw slide module assembly 1-3 and the Z-axis screw slide module assembly 1-6 drive the welding gun 1-8 to move to the next weld, and repeat the above actions until the weld is completed and automatically returns to the origin.

[0013] Furthermore, the welding tool 4 includes an inner circle fixed shaft 4-1, a copper sheet 4-2 for welding protection, and a fixed ventilation nut 4-4. One end of the inner circle fixed shaft 4-1 is installed on the three-jaw chuck 3-1. The product component 4-3 is sleeved on the inner circle fixed shaft 4-1. The product component 4-3 is axially limited by the fixed ventilation nut 4-4. A copper sheet 4-2 for welding protection is arranged between every two adjacent product components 4-3.

[0014] Furthermore, the fixed ventilation nut 4-4 is connected to an external argon gas source, and argon gas is introduced into the welding tool 4 to avoid oxidation of the product component 4-3 during the welding process.

[0015] The method for automatically welding a multi-layer filter element using the welding device comprises:

[0016] (1) Debugging process: The industrial computer 7 controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC 8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move in the Y direction. The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC 8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixing bracket 1-5, and drives the welding gun 1-8 to return to the set initial position;

[0017] The industrial computer 7 then controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move in the Y direction. The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixed bracket 1-5, drives the welding gun 1-8 to move, and leaves the initial position, so that the welding gun 1-8 is located at the first weld position of the product component 4-3, and the welding gun returns to zero at this time;

[0018] The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC 8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixing bracket 1-5, ensuring that the tungsten pole in the welding gun 1-8 is 1 to 1.5 mm away from the product assembly 4-3;

[0019] The industrial computer 7 then controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC 8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move upward in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move upward in the Y direction, and further drives the welding gun 1-8 to move upward in the Y direction, ensuring that the tungsten electrode in the welding gun 1-8 is facing the position of the first weld, and at the same time records the position of the welding gun 1-8 after debugging, and the debugging is completed; after the debugging is completed, the welding gun is controlled to return to the set initial position;

[0020] (2) Processing: Set the rotation speed of the positioner 3 to 3.0 r / min and the rotation angle to 390°; set the descending height of the Z-axis screw slide module assembly 1-6 to ensure that the tungsten electrode of the welding gun 1-8 is 1 to 1.5 mm away from the product assembly 4-3; the arc starting waiting time of the welding machine 9 is 400 ms; the welding current of the welding gun 1-8 is 19 A and the argon gas flow rate is 7 L / min;

[0021] The assembled welding fixture 4 is installed on the positioner 3, and the industrial camera 2-4 takes a picture of the welding fixture 4. After taking the picture, the picture is transmitted to the industrial computer 7 for processing, and the position of the product component 4-3 to be welded is calculated, and the calculated weld position information and quantity information are transmitted to the PLC8. The drive motor 1-4 of the Y-axis screw slide module assembly 1-3 is controlled by the PLC8 to drive the screw of the Y-axis screw slide module assembly 1-3 to rotate, and drive the first slider on the screw to move upward in the Y direction. The first slider drives the Z-axis screw slide module assembly 1-6 to move upward in the Y direction. The industrial computer 7 controls the drive motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC8 to drive the screw of the Z-axis screw slide module assembly 1-6. Rotate, drive the second slider on the screw to move in the Z direction, the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixed bracket 1-5, drives the welding gun 1-8 to move, thereby drives the welding gun 1-8 to face the weld position, after facing the weld position, PLC8 controls the welding machine 9 to start the arc, after the welding arc is successfully started, the welding machine 9 feedbacks the signal to PLC8, PLC8 controls the positioner 3 to rotate, after the rotation is completed according to the set angle, PLC8 controls the welding machine 9 to extinguish the arc, according to the above process, PLC control 8 controls the cross slide module 1 to drive the welding gun 1-8 to move to face the next weld, PLC8 controls the welding machine 9 to start the arc, according to the above process, all welds are welded; after welding is completed, the welding gun 1-8 returns to the set initial position.

[0022] Beneficial Effects

[0023] The above-mentioned invention is a continuous automatic welding device and welding method for multi-layer filter element, which is suitable for the processing field of multi-layer filter element. It realizes automatic identification and automatic welding of the welds of this type of filter element, greatly reducing the labor intensity of workers. At the same time, through visual recognition and automated program control, the consistency of the welding quality of this type of filter element is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a multi-layer filter element continuous automatic welding device of the present invention;

[0025] Figure 2 This is a schematic diagram of the installation of the cross slide module 1 and the bracket assembly A1-1 of the present invention;

[0026] Figure 3 This is a top view of the installation of the cross slide module 1 and the bracket assembly A1-1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation of the strip light source 2-6, the industrial camera 2-4, the industrial lens 2-5 and the bracket assembly B2-1 of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the positioner of the present invention;

[0029] Figure 6 This is a schematic diagram of the welding tool structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the product component structure. DETAILED DESCRIPTION

[0031] The features and illustrative embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific settings and methods proposed below, but covers any improvements, replacements and modifications of structures, methods, devices without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity in the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the embodiments can refer to and quote each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] See attached Figure 1-6 The present invention proposes a multi-layer filter element continuous automatic welding device, including a cross slide module 1, a fixed bracket 2, a positioner 3, a welding tool 4, a power distribution cabinet assembly 5, an industrial computer 7, a PLC 8 and a welding machine 9. There are two fixed brackets 2, both of which are installed on the power distribution cabinet assembly 5. The cross slide module 1 is installed on one of the fixed brackets 2, and the strip light source 2-6 and the industrial lens 2-5 are installed on the other fixed bracket. The positioner 3 is installed on the power distribution cabinet assembly 5, and the welding tool 4 is installed on the On the positioner 3, the positioner 3 can drive the welding fixture 4 to rotate. The cross slide module 1 is provided with welding guns 1-8, and the welding guns 1-8 are located above the welding fixture 4. The industrial computer 7 and PLC8 are arranged inside the power distribution cabinet assembly 5. The industrial computer 7 is connected to PLC8, and PLC8 is connected to the cross slide module 1 and the positioner 3 to control the movement of the cross slide module 1 and the positioner 3. The welding machine 9 is arranged inside the power distribution cabinet assembly 5 and connected to PLC8. Through the control of PLC8, the welding machine 9 is connected to the welding guns 1-8. The positioner 3 can drive the welding fixture 4 to rotate, and further drive the welding guns 1-8 to rotate, and can realize the adjustment of the rotation of the welding guns 1-8 in the X direction, so as to facilitate the adjustment of the appropriate welding angle; it also includes an external operation screen 6, which is arranged on the power distribution cabinet assembly 5 and connected to the industrial computer 7.

[0034] The multi-layer filter element continuous automatic welding device of the present invention needs to be assembled in the order of gasket 5-2, filter 5-1, welding protection copper sheet 4-2 and filter 5-1 before operation. After assembly, the inner circle fixed shaft 4-1 is inserted and fixed with fixed ventilation nut 4-4, and the three-jaw chuck 3-1 is installed for clamping. Then, the "welding gun reset" button on the external operation screen 6 is clicked, and the output signal controls the cross slide module 1 to drive the welding gun 1-8 back to the origin, and then the external operation is clicked. The "Gun Reset" button on the operation screen 6 outputs a signal to control the Z-axis screw rod module assembly 1-6 to drive the welding gun 1-8 back to zero. Click the "Left Inching" and "Right Inching" buttons on the external operation screen 6 to control the Y-axis screw rod slide module assembly 1-3 through electrical signals to adjust the position of the welding gun 1-8 so that it is directly facing the area to be welded between the filter 5-1 and the gasket 5-2. Click the "Gun Reset" button on the external operation screen 6 to set the rotation speed, rotation angle, welding current, and arc starting waiting time. , argon gas flow, click the "automatic welding" button on the external operation screen 6, the industrial camera 2-4 takes a photo to identify the weld position, visually identify the weld position on the external operation screen 6, and face the weld between the filter 5-1 and the gasket 5-2 to be welded. Click the "weld confirmation" button on the external operation screen 6. The industrial computer 7, as the upper computer, transmits the processed weld quantity and measured distance to PLC8 one by one. After receiving the signal, PLC8 controls the servo motor 1-4 to drive the cross slide module 1 to move. After moving to the zero position, PLC8 outputs an electrical signal to control the welding machine 9 to start the arc. After the welding machine 9 successfully starts the arc, it feedbacks to PLC8. After receiving the feedback signal, PLC8 outputs an electrical signal to control the stepper motor 3-7 to drive the 3 positioner to rotate. After the rotation is completed according to the set rotation angle, the feedback signal is given to PLC8 to stop the arc starting signal, and the welding machine 9 extinguishes the arc. PLC8 controls the servo motor 1-4 to drive the cross slide module 1 to move to the next weld until all welds are welded, thereby realizing continuous automatic welding.

[0035] In the present invention, the two fixed brackets 2 are bracket assembly A1-1 and bracket assembly B2-1 respectively.

[0036] Among them, the cross slide module 1 includes a first connecting plate 1-2; a Y-axis screw slide module assembly 1-3; a servo motor 1-4; a welding gun adjustment fixed bracket 1-5; a Z-axis screw slide module assembly 1-6; a second connecting plate 1-7; a welding gun 1-8; the Y-axis screw slide module assembly 1-3 is fixed to the bracket assembly A1-1 through the first connecting plate 1-2, a first slider is arranged on the Y-axis screw slide module assembly 1-3, the Z-axis screw slide module assembly 1-6 is connected to the first slider on the Y-axis screw slide module assembly 1-3 through the second connecting plate 1-7, the Z-axis screw slide module assembly 1-6 can be driven by the first slider and move along the Y direction on the Y-axis screw slide module assembly 1-3, a second slider is arranged on the Z-axis screw slide module assembly 1-6, the welding gun adjustment fixed bracket 1-5 is fixed on the second slider of the Z-axis screw slide module assembly 1-6, and the welding gun adjustment fixed bracket 1-5 can be adjusted on the second slider Driven by, it moves along the Z direction on the Z-direction lead screw slide module assembly 1-3, and the welding gun 1-8 is fixed on the welding gun adjustment fixed bracket 1-5, wherein the Y-direction lead screw slide module assembly 1-3 and the Z-direction lead screw slide module assembly 1-6 are respectively connected to the corresponding servo motor 1-4, and the servo motor 1-4 receives the signal data transmitted to the PLC8 by the industrial computer 7. One of the servo motors 1-4 drives the lead screw in the Y-direction lead screw slide module assembly 1-3 to rotate, driving the first slider on the lead screw to move along the Y direction; the other servo motor 1-4 drives the lead screw in the Z-direction lead screw slide module assembly 1-6 to rotate, driving the second slider on the lead screw to move along the Z direction, and the first slider and the second slider can drive the welding gun 1-8 to move in the Y and Z directions, ensuring that the welding gun 1-8 can face the weld each time it moves; the welding gun adjustment fixed bracket 1-5 can realize the adjustment of the angle of the welding gun 1-8 within an angle of 0 to 90 degrees, thereby ensuring the quality of the weld.

[0037] Among them, two light source fixing brackets 2-2 and a camera fixing bracket 2-3 located between the two light source fixing brackets 2-2 are slidably arranged on the bracket assembly B2-1; the industrial camera 2-4 and the industrial lens 2-5 are installed at the lower end of the camera fixing bracket 2-3, and the strip light source 2-6 is installed at the lower end of the light source fixing bracket 2-2. The bracket assembly B2-1 is provided with a slide groove, and the light source fixing bracket 2-2 and the camera fixing bracket 2-3 can slide on the slide groove and be locked by screws; the industrial lens 2-5 is connected to the industrial computer 7 via Ethernet. The present invention uses the industrial camera 2-4 to take pictures and identify the weld position and measure the distance, avoiding the cumulative tolerance caused by the tolerance of parts, different assembly gaps, and tooling tolerances. The upper computer of the present invention has a built-in program to internally identify the weld photo measurement results, and automatically delete the identification errors and welds that are not within the range.

[0038] Among them, the positioner 3 includes a three-jaw chuck 3-1, a connecting piece 3-2, a bearing 3-3, a key 3-4, a support 3-5, a planetary reducer 3-6 and a stepper motor 3-7. The support 3-5 is fixed on the 5 distribution cabinet assembly, the bearing 3-3 is mounted on the support 3-5, one end of the connecting piece 3-2 is fixed to the three-jaw chuck 3-1, and the other end passes through the bearing 3-3 and is connected to the planetary reducer 3-6, and is limited by the key 3-4. The shell of the planetary reducer 3-6 is connected to the support 3-5, and the stepper motor 3-7 is connected to the planetary reducer 3-6. The motor 3-7 is connected to the planetary reducer 3-6; the welding machine 9 is controlled by the PLC8 to realize that after the welding gun 1-8 starts arcing, the stepper motor 3-7 drives the three-jaw chuck 3-1 to rotate at the set speed, and the rotation angle of a single weld is adjustable in the range of 0 to 720°. After the rotation is completed, the PLC8 controls the welding machine 9 to extinguish the arc, and the Y-axis screw slide module assembly 1-3 and the Z-axis screw slide module assembly 1-6 drive the welding gun 1-8 to move to the next weld, and repeat the above actions until the weld is completed and automatically returns to the origin.

[0039] The welding fixture 4 includes an inner circle fixed shaft 4-1, a welding protection copper sheet 4-2, and a fixed ventilation nut 4-4. One end of the inner circle fixed shaft 4-1 is mounted on the three-jaw chuck 3-1. The product component 4-3 is sleeved on the inner circle fixed shaft 4-1. The product component 4-3 is axially limited by the fixed ventilation nut 4-4. A welding protection copper sheet 4-2 is set between every two adjacent product components 4-3. The welding fixture 4 ensures the consistency of the outer circle of the gasket, filter and welding copper sheet after clamping.

[0040] The fixed ventilation nut 4-4 is connected to an external argon gas source, and argon gas is introduced into the welding tool 4 to avoid oxidation of the product component 4-3 during the welding process.

[0041] The method for automatically welding a multi-layer filter element using the welding device comprises:

[0042] (1) Debugging process: The industrial computer 7 controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC 8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move in the Y direction. The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC 8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixing bracket 1-5, and drives the welding gun 1-8 to return to the set initial position;

[0043] The industrial computer 7 then controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move in the Y direction. The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixed bracket 1-5, drives the welding gun 1-8 to move, and leaves the initial position, so that the welding gun 1-8 is located at the first weld position of the product component 4-3, and the welding gun returns to zero at this time;

[0044] The industrial computer 7 controls the driving motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC 8, drives the screw of the Z-axis screw slide module assembly 1-6 to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixing bracket 1-5, ensuring that the tungsten pole in the welding gun 1-8 is 1 to 1.5 mm away from the product assembly 4-3;

[0045] The industrial computer 7 then controls the driving motor 1-4 of the Y-axis screw slide module assembly 1-3 through the PLC 8, drives the screw of the Y-axis screw slide module assembly 1-3 to rotate, drives the first slider on the screw to move upward in the Y direction, and the first slider drives the Z-axis screw slide module assembly 1-6 to move upward in the Y direction, and further drives the welding gun 1-8 to move upward in the Y direction, ensuring that the tungsten electrode in the welding gun 1-8 is facing the position of the first weld, and at the same time records the position of the welding gun 1-8 after debugging, and the debugging is completed; after the debugging is completed, the welding gun is controlled to return to the set initial position;

[0046] (2) Processing: Set the rotation speed of the positioner 3 to 3.0 r / min and the rotation angle to 390°; set the descending height of the Z-axis screw slide module assembly 1-6 to ensure that the tungsten electrode of the welding gun 1-8 is 1 to 1.5 mm away from the product assembly 4-3; the arc starting waiting time of the welding machine 9 is 400 ms; the welding current of the welding gun 1-8 is 19 A and the argon gas flow rate is 7 L / min;

[0047] The assembled welding fixture 4 is installed on the positioner 3, and the industrial camera 2-4 takes a picture of the welding fixture 4. After taking the picture, the picture is transmitted to the industrial computer 7 for processing, and the position of the product component 4-3 to be welded is calculated, and the calculated weld position information and quantity information are transmitted to the PLC8. The drive motor 1-4 of the Y-axis screw slide module assembly 1-3 is controlled by the PLC8 to drive the screw of the Y-axis screw slide module assembly 1-3 to rotate, and drive the first slider on the screw to move upward in the Y direction. The first slider drives the Z-axis screw slide module assembly 1-6 to move upward in the Y direction. The industrial computer 7 controls the drive motor 1-4 of the Z-axis screw slide module assembly 1-6 through the PLC8 to drive the screw of the Z-axis screw slide module assembly 1-6. Rotate, drive the second slider on the screw to move in the Z direction, the second slider drives the welding gun 1-8 to move in the Z direction through the welding gun adjustment fixed bracket 1-5, drives the welding gun 1-8 to move, thereby drives the welding gun 1-8 to face the weld position, after facing the weld position, PLC8 controls the welding machine 9 to start the arc, after the welding arc is successfully started, the welding machine 9 feedbacks the signal to PLC8, PLC8 controls the positioner 3 to rotate, after the rotation is completed according to the set angle, PLC8 controls the welding machine 9 to extinguish the arc, according to the above process, PLC control 8 controls the cross slide module 1 to drive the welding gun 1-8 to move to face the next weld, PLC8 controls the welding machine 9 to start the arc, according to the above process, all welds are welded; after welding is completed, the welding gun 1-8 returns to the set initial position.

[0048] The invention is suitable for continuous automatic welding of cylindrical filter elements with a diameter of φ20 to φ120 mm or filter elements of other parts with similar appearance.

[0049] The various components in the device of the present invention can be selected with reference to the following models or forms of equipment:

[0050] The Y-axis screw slide module assembly 1-3 is a GX 120 standard module with an effective stroke of 400mm; the Z-axis screw slide module assembly 1-6 is a GX 80 standard module, effective stroke 300mm; servo motor 1-4 uses model ECM-E3M-C20604RSE, Delta brand; welding gun adjustment fixed bracket 1-5 is non-standard, with a clamping diameter of φ18mm, and can be rotated 90° around the Y axis to adjust the angle; the positioner 3 uses 57 stepper motor 3-7, model 57CME23, and the bearing 3-3 is a deep groove ball bearing with a specification of 42x15x13; connector 3-2, key 3-4, and support 3-5 are non-standard processed parts; welding tool 4 is a non-standard processed part; image capture uses industrial camera 2-4 (MV-CS050-10GC) with industrial lens 2-5 (VM0828MP10) and strip light source 2-6 (KM-BRD30030-W); image processing uses industrial computer 7, model: JY-W26C; PLC8 uses Siemens S7-1200 PIC, model: 1214C (DC / DC / DC), equipped with an input and output module, model: LES7214-1AG40-0XB0; the external operation screen 6 uses a Lenovo 24-inch display; welding guns 1-8 use WP18 welding guns, and the tungsten electrode diameter is 2.4mm; welding machine 9 uses Sansha ID 3000P, the welding product diameter is φ32mm, the material is stainless steel 1Cr18Ni9Ti, the welding parameters use welding current: 19A, rotation speed: 3.0r / min, rotation angle: 390°, arc starting waiting time: 400ms, argon gas flow: 7L / min, and there are no visual defects in the appearance and internal quality of the weld.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A multi-layer filter element continuous automatic welding device, characterized in that: It includes a cross slide module, a fixed bracket, a positioner, a welding tool, a power distribution cabinet assembly, an industrial computer, a PLC and a welding machine. There are two fixed brackets, both of which are installed on the power distribution cabinet assembly. The cross slide module is installed on one of the fixed brackets, and a strip light source and an industrial lens are installed on the other fixed bracket. The positioner is installed on the power distribution cabinet assembly, and the welding tool is installed on the positioner. The positioner can drive the welding tool to rotate. A welding gun is arranged on the cross slide module, and the welding gun is located above the welding tool. The industrial computer and the PLC are arranged inside the power distribution cabinet assembly. The industrial computer is connected to the PLC, and the PLC is connected to the cross slide module and the positioner to control the movement of the cross slide module and the positioner. The welding machine is arranged inside the power distribution cabinet assembly and is connected to the PLC. The welding machine is connected to the welding gun through the control of the PLC.

2. A multi-layer filter element continuous automatic welding device according to claim 1, characterized in that: It also includes an external operation screen, which is arranged on the power distribution cabinet component and connected to the industrial computer.

3. The multi-layer filter element continuous automatic welding device according to claim 1, characterized in that: The two fixed brackets are bracket assembly A and bracket assembly B respectively.

4. The multi-layer filter element continuous automatic welding device according to claim 3 is characterized in that: The cross slide module includes a first connecting plate; a Y-axis screw slide module assembly; a servo motor; a welding gun adjustment fixed bracket; a Z-axis screw slide module assembly; a second connecting plate; a welding gun; the Y-axis screw slide module assembly is fixed to the bracket assembly A through the first connecting plate, a first slider is arranged on the Y-axis screw slide module assembly, the Z-axis screw slide module assembly is connected to the first slider on the Y-axis screw slide module assembly through the second connecting plate, the Z-axis screw slide module assembly can be driven by the first slider and move along the Y direction on the Y-axis screw slide module assembly, a second slider is arranged on the Z-axis screw slide module assembly, the welding gun adjustment fixed bracket is fixed on the second slider of the Z-axis screw slide module assembly, and the welding gun adjustment fixed bracket can be driven by the second slider and move along the Z-axis screw slide module assembly. The rod slide module assembly moves along the Z direction, and the welding gun is fixed on the welding gun adjustment fixed bracket, wherein the Y-axis lead screw slide module assembly and the Z-axis lead screw slide module assembly are respectively connected to the corresponding servo motors, and the servo motors receive the signal data transmitted from the industrial computer to the PLC. One of the servo motors drives the lead screw in the Y-axis lead screw slide module assembly to rotate, driving the first slider on the lead screw to move along the Y direction; the other servo motor drives the lead screw in the Z-axis lead screw slide module assembly to rotate, driving the second slider on the lead screw to move along the Z direction. The first slider and the second slider can drive the welding gun to move in the Y and Z directions, ensuring that the welding gun can face the weld each time it moves; the welding gun adjustment fixed bracket can realize the adjustment of the welding gun within an angle of 0 to 90°, thereby ensuring the quality of the weld.

5. The multi-layer filter element continuous automatic welding device according to claim 4, characterized in that: Two light source fixing brackets are slidably arranged on the bracket assembly B, and a camera fixing bracket is slidably arranged between the two light source fixing brackets; the industrial camera and the industrial lens are installed at the lower end of the camera fixing bracket, and the strip light source is installed at the lower end of the light source fixing bracket. The bracket assembly B is provided with a slide groove, and the light source fixing bracket and the camera fixing bracket can slide on the slide groove and be locked by screws; the industrial lens is connected to the industrial computer via Ethernet.

6. A multi-layer filter element continuous automatic welding device according to claim 5, characterized in that: The positioner includes a three-jaw chuck, a connecting piece, a bearing, a key, a support, a planetary reducer and a stepper motor. The support is fixed on the distribution cabinet assembly, and the bearing is installed on the support. One end of the connecting piece is fixed to the three-jaw chuck, and the other end passes through the bearing and is connected to the planetary reducer and limited by the key. The housing of the planetary reducer is connected to the support, and the stepper motor is connected to the planetary reducer. The welding machine is controlled by PLC to realize arcing of the welding gun. The stepper motor drives the three-jaw chuck to rotate at a set speed. The rotation angle of a single weld is adjustable within the range of 0 to 720°. After the rotation is completed, the PLC controls the welding machine to extinguish the arc, and the Y-axis lead screw slide module assembly and the Z-axis lead screw slide module assembly drive the welding gun to move to the next weld. The above actions are repeated until the weld is completed and automatically returns to the origin.

7. A multi-layer filter element continuous automatic welding device according to claim 6, characterized in that: The welding tooling includes an inner circle fixed shaft, a copper sheet for welding protection, and a fixed vent nut. One end of the inner circle fixed shaft is installed on a three-jaw chuck, and the product component is sleeved on the inner circle fixed shaft. The product component is axially limited by the fixed vent nut, and a copper sheet for welding protection is arranged between every two adjacent product components.

8. The multi-layer filter element continuous automatic welding device according to claim 7, characterized in that: The fixed vent nut is connected to an external argon gas source, and argon gas is introduced into the welding tooling to avoid oxidation of product components during welding.

9. A method for automatically welding a multi-layer filter element using the welding device as claimed in claim 8, characterized in that: include: (1) Debugging process: The industrial computer controls the driving motor of the Y-axis screw slide module assembly through the PLC, drives the screw of the Y-axis screw slide module assembly to rotate, drives the first slider on the screw to move in the Y direction, and the first slider drives the Z-axis screw slide module assembly to move in the Y direction. The industrial computer controls the driving motor of the Z-axis screw slide module assembly through the PLC, drives the screw of the Z-axis screw slide module assembly to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun to move in the Z direction through the welding gun adjustment fixing bracket, and drives the welding gun to return to the set initial position; The industrial computer then controls the driving motor of the Y-axis lead screw slide module assembly through the PLC, drives the lead screw of the Y-axis lead screw slide module assembly to rotate, drives the first slider on the lead screw to move in the Y direction, and the first slider drives the Z-axis lead screw slide module assembly to move in the Y direction. The industrial computer controls the driving motor of the Z-axis lead screw slide module assembly through the PLC, drives the lead screw of the Z-axis lead screw slide module assembly to rotate, drives the second slider on the lead screw to move in the Z direction, and the second slider drives the welding gun to move in the Z direction through the welding gun adjustment fixing bracket, drives the welding gun to move and leave the initial position, so that the welding gun is located at the first weld position of the product assembly, and the welding gun returns to zero at this time; The industrial computer then controls the driving motor of the Z-axis screw slide module assembly through the PLC, drives the screw of the Z-axis screw slide module assembly to rotate, drives the second slider on the screw to move in the Z direction, and the second slider drives the welding gun to move in the Z direction through the welding gun adjustment fixed bracket to ensure that the tungsten pole in the welding gun is 1 to 1.5 mm away from the product assembly 4-3 height; The industrial computer then controls the driving motor of the Y-axis lead screw slide module assembly through the PLC, drives the lead screw of the Y-axis lead screw slide module assembly to rotate, drives the first slider on the lead screw to move upward in the Y direction, and the first slider drives the Z-axis lead screw slide module assembly to move upward in the Y direction, further drives the welding gun to move upward in the Y direction, ensures that the tungsten electrode in the welding gun is facing the position of the first weld, and records the position of the welding gun after debugging, and the debugging is completed; after the debugging is completed, the welding gun is controlled to return to the set initial position; (2) Processing: Set the rotation speed of the positioner to 3.0 r / min and the rotation angle to 390°; set the descending height of the Z-axis screw slide module assembly to ensure that the tungsten electrode in the welding gun is 1 to 1.5 mm away from the product assembly 4-3; the arc starting waiting time of the welding machine is 400 ms; the welding current of the welding gun is 19 A and the argon gas flow rate is 7 L / min; The assembled welding tooling is installed on the positioner, and the industrial camera takes a picture of the welding tooling. After taking the picture, the picture is transmitted to the industrial computer for processing, and the position of the product component to be welded is calculated. The calculated weld position information and quantity information are transmitted to the PLC. The PLC controls the drive motor of the Y-axis screw slide module assembly to drive the screw of the Y-axis screw slide module assembly to rotate, and drives the first slider on the screw to move upward in the Y direction. The first slider drives the Z-axis screw slide module assembly to move upward in the Y direction. The industrial computer controls the drive motor of the Z-axis screw slide module assembly through the PLC to drive the screw of the Z-axis screw slide module assembly to rotate. The second slider on the lead screw is driven to move in the Z direction. The second slider drives the welding gun to move in the Z direction through the welding gun adjustment fixed bracket, drives the welding gun to move, and thus drives the welding gun to face the weld position. After facing the weld position, the PLC controls the welding machine to start the arc. After the welding arc is successfully started, the welding machine feeds back a signal to the PLC, and the PLC controls the positioner to rotate. After the rotation is completed at the set angle, the PLC controls the welding machine to extinguish the arc. According to the above process, the PLC controls the cross slide module to drive the welding gun to face the next weld. The PLC controls the welding machine to start the arc. According to the above process, all welds are welded. After welding is completed, the welding gun returns to the set initial position.

Images