A high yield type welding device with appearance quality online detection function

Abstract

This invention relates to the field of discharge tube welding technology and discloses a high-yield welding device with online appearance quality inspection function. The device includes a workbench, a welding mechanism, a feeding mechanism, and a holding box. The welding mechanism includes a welding seat for clamping the discharge tube body. The feeding mechanism includes a first pneumatic gripper for clamping the discharge tube body material onto the welding seat and a second pneumatic gripper for clamping the welded discharge tube into the holding box. This high-yield welding device with online appearance quality inspection function integrates the inspection device and the welding device, enabling online inspection of the welding status of the discharge tube body and leads during the welding process. It allows for timely online identification and differentiation of qualified and unqualified products, completed simultaneously with the welding process. This saves on the site setup or labor costs associated with subsequent manual inspection and offers advantages such as higher accuracy and lower identification error rate compared to manual inspection.

Description

Technical Field

[0001] This invention relates to the field of discharge tube welding technology, specifically a high-yield welding device with online appearance quality inspection function. Background Technology

[0002] A discharge tube is a high-voltage protection component used at the input end of a device. There are generally two types: diode discharge tubes and triode discharge tubes. The structure of discharge tubes is further divided into two types: those with electrode leads and those without electrode leads. The production process of discharge tubes with electrode leads mainly includes steps such as electronic powder coating, assembly, burning, aging, and welding.

[0003] The welding process involves attaching one end of each of the two sets of electrode wires to the conductive areas on both sides of the ceramic tube, and then welding them together.

[0004] For example, the invention disclosed in CN107470764A is an automatic diode lead bonding machine, including a frame, a worktable inside the frame, a welding device and a feeding device on the worktable, a clamping seat for holding diode bodies on the welding device, and the feeding device feeding the diode bodies to the clamping seat. A tangent device, a lead straightening device and a lead feeding device are symmetrically arranged at both ends of the diode body on the clamping seat. The lead fed out by the lead feeding device is cut into unit lengths by the tangent device and then fed to the end face of the diode body for welding by the welding device. The welded diode is then picked up by the feeding device and placed into a finished product box. This invention relates to the field of diode welding technology and can realize fully automatic lead bonding without manual welding, which is beneficial to improving the quality and efficiency of diode welding production.

[0005] After the aforementioned wire welding machine completes the welding of the leads, it usually puts the finished product directly into the finished product box, thus completing the entire welding operation. However, in practical applications, the automated welding process inevitably encounters situations such as incomplete welding or detachment of the welded parts. There are usually two ways to deal with this situation: 1. Manually inspect and screen a large number of products later; 2. Set up a detection device and manually transfer the products to the detection device for automatic detection. The first method is both time-consuming and labor-intensive, and the error of manual identification is relatively large. The second method requires additional investment in site and equipment, which is costly, and the product transfer also requires manual participation, so the economic benefits are not high.

[0006] Therefore, a high-yield welding device with online appearance quality inspection function is proposed to solve the above problems. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a high-yield welding device with online appearance quality inspection capabilities. It has advantages such as online detection of the qualification status of the completed discharge tube welding and timely screening of superior and inferior products. This solves the problem that when incomplete welding or detachment of welded parts inevitably occurs in the automated welding process, manual screening of large quantities or additional site and equipment are required for screening.

[0009] (II) Technical Solution

[0010] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A high-yield welding device with online appearance quality inspection function, including a workbench, a welding mechanism, a feeding mechanism and a holding box. The welding mechanism includes a welding seat for clamping the discharge tube body. The feeding mechanism includes a first pneumatic gripper for clamping the discharge tube body material onto the welding seat and a second pneumatic gripper for clamping the welded discharge tube into the holding box. The second pneumatic gripper is provided with a detection device for detecting the welded part of the welded discharge tube.

[0011] The beneficial effects of this invention are: by integrating the detection device and the welding device, the welding status of the discharge tube body and lead wire can be detected online, and qualified and unqualified products can be identified and distinguished online in a timely manner. It is completed simultaneously with the welding process, saving the site setup or labor costs for subsequent detection. Moreover, compared with manual detection, it has the advantages of more accurate detection and lower identification error rate.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the detection device includes an appearance inspection mechanism for detecting the weld joint of the discharge tube and an auxiliary rotation mechanism for driving the discharge tube to rotate circumferentially.

[0014] Furthermore, the appearance inspection mechanism includes a position fixing component and an image acquisition device. The position fixing component is mounted on the second pneumatic gripper, and the image acquisition device is connected to the position fixing component.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the position and angle of the image acquisition device are determined by the position fixing component, and image data can be acquired from the weld joint according to the settings of the image acquisition device.

[0016] Furthermore, the auxiliary rotation mechanism includes a tube contact element and a rotation control element.

[0017] Furthermore, the tube contact element includes a rotatable auxiliary pulley located inside the discharge tube gripper of the second pneumatic gripper.

[0018] The beneficial effect of adopting the above-mentioned further solution is that when the second pneumatic gripper grips the discharge tube body, it can provide an area where the discharge tube body can rotate smoothly, so that the second pneumatic gripper does not completely clamp and fix the discharge tube body.

[0019] Furthermore, the rotation control component includes a fixed plate disposed on the second pneumatic gripper, a spring disposed on the fixed plate, an auxiliary plate disposed on the other end of the spring, a movable column slidably connected to one end of the auxiliary plate, a stop plate disposed on the worktable and disposed vertically opposite to the movable column, and a push plate disposed on the end of the movable column away from the stop plate, which is located above the discharge tube gripped by the second pneumatic gripper.

[0020] The beneficial effect of adopting the above-mentioned further solution is that, according to the movement process of the second pneumatic gripper in gripping the completed welding discharge tube and placing it into the holding box, the contact operation between the push plate and the discharge tube body can be realized in conjunction, and the discharge tube body can be rotated by the push plate, so that the appearance inspection mechanism can perform all-round inspection of the welding joint of the discharge tube, ensuring and improving the accuracy of appearance inspection.

[0021] Furthermore, the welding mechanism also includes an electrode pressure plate, a wire clamping component, and a welding power source. The electrode pressure plate is mounted on the welding seat. The wire clamping component includes a transmission push rod, a movable clamping plate, and a fixed clamping plate. The transmission push rod is connected to the movable clamping plate, which drives the movable clamping plate to move in a direction close to the fixed clamping plate. The movable clamping plate and the fixed clamping plate are provided with wire clamping nozzles that are adapted to clamp the lead wires. The wire clamping nozzles are connected to the welding power source, and the welding power source is connected to a controller.

[0022] The beneficial effect of adopting the above-mentioned further solution is that when the clamping nozzle clamps the lead wire and contacts the discharge tube body, the welding power source provides welding current, so that the clamping nozzle and the electrode pressure plate are respectively positive and negative poles to form resistance welding conditions at the contact point between the discharge tube body and the lead wire, thus completing the welding of the discharge tube body and the lead wire.

[0023] Furthermore, the container includes a box body, and the box body is provided with a qualified area and an unqualified area.

[0024] Furthermore, it also includes a material dispensing device and a controller, wherein the material dispensing device is arranged parallel to the holding box, and the material dispensing device and the detection device are connected to the controller;

[0025] The controller is pre-set to store a parameter threshold comparison table for the discharge tube welding point, a rotation control strategy for the qualified area, and a rotation control strategy for the unqualified area.

[0026] The detection device detects the welding parameters of the completed discharge tube. According to the parameter threshold comparison table of the discharge tube welding point, if the parameters are less than the threshold, the material distribution device is controlled to move along the direction of the qualified area according to the preset rotation control strategy towards the qualified area. If the parameters are reached or greater than the threshold, the material distribution device is controlled to move along the direction of the unqualified area according to the preset rotation control strategy towards the unqualified area.

[0027] The beneficial effect of adopting the above-mentioned further solution is that the completed welding discharge tubes can be judged as qualified or unqualified products based on the online detection data of the detection device, and the corresponding strategy can be executed to control the material sorting device to classify and store the completed welding discharge tubes, which is convenient for the staff to distinguish and process later.

[0028] Furthermore, the material distribution device includes a transmission mechanism and a guide plate. The worktable has an opening, the container is located below the opening, and the guide plate is rotatably provided inside the opening. The transmission mechanism is connected to the guide plate and drives the guide plate to rotate circumferentially. Attached Figure Description

[0029] Figure 1 This is a partial front view of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the workbench, container, and dispensing device of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of the first pneumatic gripper and the second pneumatic gripper of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the second pneumatic gripper of the present invention;

[0033] Figure 5 This is an enlarged view of point A in the present invention;

[0034] Figure 6 This is a three-dimensional structural diagram of the detection device of the present invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the container of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the material dispensing device of the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the wire clamping component of the present invention;

[0038] Figure 10 A three-dimensional structural representation of an existing tangent mechanism;

[0039] Figure 11 This is a three-dimensional structural representation of a wire clamping mechanism in the prior art.

[0040] In the diagram: 1. Workbench; 2. Welding mechanism; 21. Welding seat; 22. Electrode pressure plate; 23. Wire clamping component; 231. Transmission push rod; 232. Moving clamping plate; 233. Fixed clamping plate; 234. Wire clamping nozzle; 24. Welding power source; 3. Feeding mechanism; 31. First pneumatic gripper; 32. Second pneumatic gripper; 4. Holding box; 41. Box body; 42. Qualified area; 43. Unqualified area; 5. Inspection device; 51. Appearance inspection mechanism; 511. Position fixing component; 5111, vertical rod; 512, image acquisition device; 52, auxiliary rotation mechanism; 521, pipe body contact component; 5211, auxiliary pulley; 522, rotation control component; 5221, fixing plate; 5222, spring; 5223, auxiliary plate; 5224, moving column; 5225, abutment plate; 5226, push plate; 5227, anti-deviation guide rod; 6, material distribution device; 61, transmission mechanism; 62, guide plate; 7, controller. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the embodiments, by Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A high-yield welding device with online appearance quality inspection function is provided, including a workbench 1, a welding mechanism 2, a feeding mechanism 3, and a holding box 4. The welding mechanism 2 includes a welding seat 21 for clamping the discharge tube body. The feeding mechanism 3 includes a first pneumatic gripper 31 for clamping the discharge tube body material onto the welding seat 21 and a second pneumatic gripper 32 for clamping the welded discharge tube into the holding box 4. The second pneumatic gripper 32 is provided with a detection device 5 for detecting the welded part of the welded discharge tube.

[0043] The first pneumatic gripper 31 and the second pneumatic gripper 32 are both driven by vertical and horizontal moving parts to move forward and backward and up and down. The first pneumatic gripper 31 and the second pneumatic gripper 32 are both mounted on the same housing. The detection device 5 is also mounted on the housing, which does not affect the normal gripping operation of the first pneumatic gripper 31 and the second pneumatic gripper 32.

[0044] This also includes a wire tangling device, a wire straightening device, and a wire feeding device. The wire tangling device includes a wire tangling mechanism and a wire clamping mechanism, such as... Figure 10 and Figure 11 The structure shown;

[0045] Furthermore, the feeding mechanism 3 also includes a material box for supplying the discharge tube body, a vibratory plate, and a feeding platform. The material box is used to supply material to the vibratory plate. After the vibratory plate has shaped the discharge tube body, it transports the discharge tube body to the feeding platform through the material pipe.

[0046] The feeding, wire feeding, wire leading and wire cutting device is a prior art disclosed in an automatic diode wire bonding machine (publication number CN107470764A), and therefore is not described or shown in the figures.

[0047] Depend on Figure 1 and Figure 3 The detection device 5 includes an appearance inspection mechanism 51 for inspecting the weld joint of the discharge tube and an auxiliary rotation mechanism 52 for driving the discharge tube to rotate circumferentially. The appearance inspection mechanism 51 consists of two parts, which are respectively set on both sides of the second pneumatic gripper 32 to inspect the weld joints on both sides of the completed discharge tube.

[0048] The appearance inspection mechanism 51 includes a position fixing component 511 and an image acquisition device 512. The position fixing component 511 is mounted on the second pneumatic gripper 32. The image acquisition device 512 is connected to the position fixing component 511. The position and angle of the image acquisition device 512 are determined by the position fixing component 511. Based on the settings of the image acquisition device 512, image data can be acquired from the weld joint.

[0049] Among them, the image acquisition device 512 can be an industrial CCD camera;

[0050] Preferably, (the technical solution regarding the adjustable position and angle is not shown in the figure) the position fixing member 511 includes a vertical pushing member and an angle adjusting member, the angle adjusting member is connected to the vertical pushing member, and the image acquisition device 512 is connected to the angle adjusting member;

[0051] Furthermore, the vertical pushing component is a pneumatic push rod, which is connected to the diameter side of the semi-circular plate to adjust the vertical distance;

[0052] The angle adjustment component is a semi-circular plate with multiple threaded holes arranged in a ring at equal intervals. The semi-circular plate also has a semi-circular groove, which is coaxial with the semi-circular plate. A U-shaped plate is slidably connected to the outside of the semi-circular groove. A mounting hole is provided on the outside of the U-shaped plate, and a threaded rod that is threadedly connected to the threaded hole is provided in the mounting hole. The image acquisition device 512 is connected to the side of the U-shaped plate away from the semi-circular plate by bolts.

[0053] The auxiliary rotation mechanism 52 includes a tube contact member 521 and a rotation control member 522.

[0054] Depend on Figure 4 and Figure 5 The tube contact member 521 includes a rotatable auxiliary pulley 5211 located inside the discharge tube gripping area of ​​the second pneumatic gripper 32. The auxiliary pulleys 5211 are multiple and are arranged in a ring at equal intervals inside the gripping area of ​​the second pneumatic gripper 32. When the second pneumatic gripper 32 grips the discharge tube body, it provides an area for the discharge tube body to rotate smoothly, so that the second pneumatic gripper 32 does not completely clamp and fix the discharge tube body.

[0055] Depend on Figure 3 and Figure 6 The rotary control component 522 includes a fixed plate 5221 mounted on the second pneumatic gripper 32. A spring 5222 is mounted on the fixed plate 5221, and an auxiliary plate 5223 is mounted on the other end of the spring 5222. A movable column 5224 is slidably connected to one end of the auxiliary plate 5223. A stop plate 5225 is mounted on the worktable 1, positioned vertically opposite to the movable column 5224. A slider is mounted on the stop plate 5225. A sliding groove is mounted on the movable column 5224 that corresponds to the slider. A push plate 5226 is mounted on the end of the movable column 5224 away from the stop plate 5225, positioned above the discharge tube gripping point of the second pneumatic gripper 32. A friction layer is provided on one side, which can be composed of several grooves or a rubber pad (such as a nitrile rubber pad). The push plate 5226 is U-shaped, and the U-shaped area is the placement area for the image acquisition device 512, which facilitates the image acquisition device 512 to perform image acquisition intuitively. According to the movement process of the second pneumatic gripper 32 in the process of gripping the completed welding discharge tube and placing it into the holding box 4, the push plate 5226 can be linked to the contact operation between the discharge tube body and the discharge tube body. The push plate 5226 can drive the discharge tube body to rotate, so that the appearance inspection mechanism 51 can perform all-round inspection of the welding joint of the discharge tube, ensuring and improving the accuracy of appearance inspection.

[0056] Among them, the position fixing component 511 includes a vertical rod 5111, which is mounted on the fixing plate 5221 and located inside the spring 5222. The other end of the vertical rod 5111 passes through the auxiliary plate 5223 and is equipped with an image acquisition device 512 located inside the push plate 5226. This method completes the fixing of the shooting angle of the image acquisition device 512 during the installation stage.

[0057] One end of the movable column 5224 is provided with a slot, and the abutment plate 5225 is provided with an anti-deviation guide rod 5227 extending into the slot. This method can prevent the movable column 5224 from deviating during movement and improve its stability.

[0058] Depend on Figure 1 and Figure 9 As shown, the welding mechanism 2 also includes an electrode pressure plate 22, a wire clamping component 23, and a welding power source 24. The electrode pressure plate 22 is disposed on the welding seat 21. The wire clamping component 23 includes a transmission push rod 231, a movable clamping plate 232, and a fixed clamping plate 233. The transmission push rod 231 is connected to the movable clamping plate 232 and drives the movable clamping plate 232 to move in a direction close to the fixed clamping plate 233. The movable clamping plate 232 and the fixed clamping plate 233 are provided with wire clamping nozzles 234 adapted to clamp the lead wire. The wire clamping nozzles 234 are connected to the welding power source 24, and the welding power source 24 is connected to the controller 7.

[0059] When the lead wire is clamped by the clamping nozzle 234 and comes into contact with the discharge tube body, the welding power source 24 provides welding current so that the clamping nozzle 234 and the electrode pressure plate 22 are respectively in positive and negative polarity to form resistance welding conditions at the contact point between the discharge tube body and the lead wire, thus completing the welding of the discharge tube body and the lead wire.

[0060] Depend on Figure 2 and Figure 7 The container 4 is provided with a box body 41, and the box body 41 is provided with a qualified area 42 and an unqualified area 43.

[0061] Depend on Figure 2 and Figure 8 The system also includes a material distribution device 6 and a controller 7. The material distribution device 6 is arranged parallel to the container 4. The material distribution device 6 and the detection device 5 are connected to the controller 7 (the controller 7 is not shown in the figure).

[0062] Controller 7 is pre-set with a parameter threshold comparison table for the discharge tube welding point, a rotation control strategy for the qualified area, and a rotation control strategy for the unqualified area;

[0063] The detection device 5 detects the welding parameters of the completed discharge tube. According to the parameter threshold comparison table of the discharge tube welding point, if the parameters are less than the threshold, the material distribution device 6 is controlled to move in the direction of the qualified area according to the preset rotation control strategy towards the qualified area. If the parameters are reached or greater than the threshold, the material distribution device 6 is controlled to move in the direction of the unqualified area according to the preset rotation control strategy towards the unqualified area.

[0064] Based on the online detection data from the detection device 5, the completed welding discharge tubes can be identified as either qualified or unqualified. Based on the identification, the corresponding strategy is executed to control the material sorting device 6 to classify and store the completed welding discharge tubes, making it convenient for later staff to distinguish and process them.

[0065] Furthermore, the material distribution device 6 includes a transmission mechanism 61 and a guide plate 62. The workbench 1 has an opening, and the container 4 is located below the opening. The guide plate 62 is rotatably provided inside the opening. The transmission mechanism 61 is connected to the guide plate 62 and drives the guide plate 62 to rotate circumferentially. The inner side of the middle part of the guide plate 62 has a recessed arc-shaped groove, which can move to a designated area along the tilt direction of the guide plate 62 when the discharge tube falls onto the guide plate 62. The transmission mechanism 61 is an electric motor.

[0066] The beneficial effects of this invention are: by integrating the detection device and the welding device, the welding status of the discharge tube body and lead wire can be detected online, and qualified and unqualified products can be identified and distinguished online in a timely manner. It is completed simultaneously with the welding process, saving the site setup or labor costs for subsequent detection. Moreover, compared with manual detection, it has the advantages of more accurate detection and lower identification error rate.

[0067] Working principle:

[0068] Step 1: The first pneumatic gripper 31 picks up the discharge tube body from the feeding table and places it on the welding seat 21. The lead wire is released by the wire feeding device and straightened by the lead wire straightening device. Then, the lead wire is cut into unit lengths by the wire cutting device and sent to the fixed clamping plate 233 and the movable clamping plate 232 of the welding mechanism 2. The transmission push rod 231 drives the movable clamping plate 232 to move so that the wire clamping nozzle 234 clamps the lead wire and sends the lead wire to contact the end face of the discharge tube body. The welding power source 24 provides welding current so that the wire clamping nozzle 234 and the electrode pressure plate 22 are respectively positive and negative poles to form resistance welding conditions at the contact point between the discharge tube body and the lead wire, thus completing the welding of the discharge tube body and the lead wire.

[0069] Step 2: At this time, the first pneumatic gripper 31 and the second pneumatic gripper 32 are respectively above the welding seat 21, and the first pneumatic gripper 31 is located in front of the second pneumatic gripper 32. When the welding discharge tube is completed, the first pneumatic gripper 31 and the second pneumatic gripper 32 move backward together and then move downward together. The first pneumatic gripper 31 grips the discharge tube body on the feeding platform, and the second pneumatic gripper 32 grips the welding discharge tube on the welding seat 21.

[0070] Step 3: During the upward movement of the first pneumatic gripper 31 and the second pneumatic gripper 32, the fixed plate 5221 moves upward with the second pneumatic gripper 32. The spring 5222, the auxiliary plate 5223, the moving column 5224 and the push plate 5226 move upward with the fixed plate 5221 until the moving column 5224 abuts against the abutting plate 5225 or the anti-deviation guide rod 5227 abuts against the lowest end of the slot. The fixed plate 5221 continues to move upward, the spring is in a stretched state, the second pneumatic gripper 32 grips the completed welding discharge tube and also continues to move upward. The position of the push plate 5226 remains unchanged until the completed welding discharge tube contacts and abuts against the push plate 5226. Meanwhile, the image acquisition device continuously acquires images of the welding point of the completed welding discharge tube.

[0071] Step 4: Then, the first pneumatic gripper 31 and the second pneumatic gripper 32 move forward. The welded discharge tube, the fixed plate 5221, and the spring 5222 held by the second pneumatic gripper 32 move forward along with it. The auxiliary plate 5223 slides forward on the moving column 5224. The positions of the moving column 5224 and the push plate 5226 remain fixed. Due to the friction between the welded discharge tube and the push plate 5226 and driven by the auxiliary pulley 5211, the welded discharge tube is pushed by the push plate 5226 to rotate circumferentially. The image acquisition device continuously acquires images of the welded part of the welded discharge tube, that is, it completes the all-round image acquisition of the welded part of the welded discharge tube, thus completing the detection operation.

[0072] Step 5: Finally, the first pneumatic gripper 31 and the second pneumatic gripper 32 move downward and open the gripper. The discharge tube body held by the first pneumatic gripper 31 is placed on the welding seat 21, and the welding discharge tube held by the second pneumatic gripper 32 falls into the opening of the workbench 1.

[0073] At this time, based on the welding parameters of the completed discharge tube obtained by the image acquisition device, the motor in the opening controlled by the controller 7 drives the guide plate 62 to perform an action (the action can be performed before the completed discharge tube falls or after it falls onto the guide plate 62). If the completed discharge tube is a qualified product, the motor drives the guide plate 62 to rotate in the direction of the qualified area. If the completed discharge tube is an unqualified product, the motor drives the guide plate 62 to rotate in the direction of the unqualified area, thus completing the entire welding inspection and sorting operation.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-yield welding device with online appearance quality inspection function, comprising a workbench (1), a welding mechanism (2), a feeding mechanism (3), and a container (4), characterized in that: The welding mechanism (2) includes a welding seat (21) for clamping the discharge tube body, and the feeding mechanism (3) includes a first pneumatic gripper (31) for clamping the discharge tube body material onto the welding seat (21) and a second pneumatic gripper (32) for clamping the welded discharge tube into the holding box (4). The second pneumatic gripper (32) is provided with a detection device (5) for detecting the welded part of the welded discharge tube. The detection device (5) includes an appearance inspection mechanism (51) for detecting the welded joint of the discharge tube and an auxiliary rotation mechanism (52) for driving the discharge tube to rotate circumferentially. The auxiliary rotation mechanism (52) includes a tube contact (521) and a rotation control component (522); The tube contact (521) includes an auxiliary pulley (5211) that is rotatably disposed on the inner side of the discharge tube by the second pneumatic gripper (32). The rotation control component (522) includes a fixed plate (5221) disposed on the second pneumatic gripper (32), a spring (5222) disposed on the fixed plate (5221), an auxiliary plate (5223) disposed at the other end of the spring (5222), a moving column (5224) slidably connected to one end of the auxiliary plate (5223), a stop plate (5225) disposed on the worktable (1) and arranged vertically opposite to the moving column (5224), a slider disposed on the stop plate (5225), a sliding groove disposed on the moving column (5224) and adapted to the slider, a push plate (5226) disposed at the end of the moving column (5224) away from the stop plate (5225) and located above the discharge tube gripped by the second pneumatic gripper (32), a friction layer disposed on one side of the push plate (5226); The container (4) includes a box body (41), and the box body (41) is provided with a qualified area (42) and an unqualified area (43). It also includes a material distribution device (6) and a controller (7), wherein the material distribution device (6) is arranged in parallel with the container (4), and the material distribution device (6) and the detection device (5) are connected to the controller (7); The controller (7) is pre-set to store a parameter threshold comparison table for the discharge tube welding point, a rotation control strategy for the qualified area and a rotation control strategy for the unqualified area; The detection device (5) detects the welding parameters of the completed discharge tube. The parameters are judged according to the parameter threshold comparison table of the discharge tube. If the parameters are less than the threshold, the material distribution device (6) is controlled to move in the direction of the qualified area according to the preset rotation control strategy towards the qualified area. If the parameters are reached or greater than the threshold, the material distribution device (6) is controlled to move in the direction of the unqualified area according to the preset rotation control strategy towards the unqualified area.

2. The high yield type welding device with online appearance quality detection function according to claim 1, characterized in that: The appearance inspection mechanism (51) includes a position fixing component (511) and an image acquisition device (512). The position fixing component (511) is mounted on the second pneumatic gripper (32), and the image acquisition device (512) is connected to the position fixing component (511).

3. The high yield type welding device with online appearance quality detection function according to claim 1, characterized in that: The welding mechanism (2) further includes an electrode pressure plate (22), a wire clamping component (23), and a welding power source (24). The electrode pressure plate (22) is disposed on the welding seat (21). The wire clamping component (23) includes a transmission push rod (231), a movable clamping plate (232), and a fixed clamping plate (233). The transmission push rod (231) is connected to the movable clamping plate (232) to drive the movable clamping plate (232) to move along the direction close to the fixed clamping plate (233). The movable clamping plate (232) and the fixed clamping plate (233) are provided with compatible wire clamping nozzles (234) for clamping the lead wire. The wire clamping nozzles (234) are connected to the welding power source (24).

4. The high yield type welding device with online appearance quality detection function according to claim 1, characterized in that: The material distribution device (6) includes a transmission mechanism (61) and a guide plate (62). The workbench (1) has an opening, and the container (4) is located below the opening. The guide plate (62) is rotatably arranged inside the opening. The transmission mechanism (61) is connected to the guide plate (62) and drives the guide plate (62) to rotate circumferentially.

Images