Automatic welding machine for rearview mirror metal parts

Abstract

The present application relates to an automatic welding machine for metal parts of a rearview mirror, comprising a workbench, a first feeding mechanism, a second feeding mechanism, a feeding mechanism and a welding assembly for welding a ball head and a mirror rod. The workbench is provided with a mold and a positioning fixture. The positioning fixture comprises an upper tooling, a lower tooling and a third driving member. The upper tooling is slidably connected to the workbench, and the lower tooling is rotatably connected to the workbench. The third driving member drives the sliding of the upper tooling. When the upper tooling slides toward the lower tooling, the lower tooling rotates toward the upper tooling to match the upper tooling. When the upper tooling slides toward the side away from the lower tooling, the lower tooling rotates toward the feeding mechanism. The first feeding mechanism is used to convey the ball head to the mold, and the second feeding mechanism is used to convey the mirror rod to the lower tooling. Automatic feeding of the mirror rod and the ball head and automatic unloading of metal parts after welding are realized; automation and safety are improved, and the possibility of potential safety hazards is reduced; the possibility of the ball head falling off due to force after welding is reduced, and the production quality of metal parts is improved.

Description

Technical Field

[0001] The invention relates to the field of rearview mirror accessory processing, in particular to an automatic welding machine for rearview mirror metal parts. Background Art

[0002] A ball joint is typically welded to the rearview mirror stem, creating a spherical joint connection with the mirror housing. This allows the mirror to be flexibly adjusted to accommodate varying viewing angles, while also ensuring the housing can withstand external forces without loosening or damage, and ensuring stability and reliability during vehicle operation. Therefore, the quality of the weld between the mirror stem and ball joint directly impacts the performance and service life of the entire product.

[0003] In the prior art, the welding of the mirror stem and the ball head of the rearview mirror is usually carried out by manually placing the mirror stem and the ball head on the corresponding mold in sequence, and then removing the ball head after the welding is completed; however, during this process, the temperature at the welding point between the mirror stem and the ball head is high, and splashes are generated, which can easily cause safety hazards during the manual loading and unloading operations; and if the newly welded ball head is hit by a large force, it can easily cause the ball head to fall off, affecting the quality of the mirror stem welding. Summary of the Invention

[0004] In order to improve the welding efficiency and quality of the rearview mirror rod and ball head, the present application provides an automatic welding machine for rearview mirror metal parts.

[0005] The present application provides an automatic welding machine for rearview mirror metal parts, which adopts the following technical solutions:

[0006] A rearview mirror metal parts automatic welding machine includes a workbench, a first loading mechanism, a second loading mechanism, a unloading mechanism and a welding assembly for welding a ball head and a mirror rod, the workbench is provided with a mold matching the ball head and a positioning fixture matching the mirror rod, the positioning fixture includes an upper tooling, a lower tooling and a third driving member, the first loading mechanism is used to convey the ball head to the mold, the second loading mechanism is used to convey the mirror rod to the lower tooling, the upper tooling is slidably connected to the workbench, the lower tooling is rotatably connected to the workbench, the third driving member is used to drive the upper tooling to move up and down, when the upper tooling moves toward the side of the lower tooling, the lower tooling rotates toward the side of the upper tooling to cooperate with the upper tooling, when the upper tooling moves toward the side away from the lower tooling, the lower tooling rotates toward the side of the unloading mechanism and conveys the welded metal parts to the unloading mechanism.

[0007] By adopting the above technical solution, in the process of the third driving member driving the upper tooling to move toward the lower tooling, the first loading mechanism and the second loading mechanism respectively transport the ball head and the mirror rod to the mold and the lower tooling. When the upper tooling and the lower tooling cooperate, the welding assembly welds the ball head and the mirror rod; after the welding is completed, the third driving member drives the lower tooling to slide toward the side away from the upper tooling, and the lower tooling rotates toward the side of the blanking mechanism, so that the welded metal parts on the lower tooling mold core roll along the lower tooling toward the blanking mechanism to the blanking mechanism for transportation; so as to realize the automatic loading of the mirror rod and the ball head and the automatic unloading of the metal parts after welding; so as to improve the automation and safety of the welding process and reduce the possibility of safety hazards; at the same time, reduce the possibility of the ball head being knocked off by a strong impact after welding, so as to improve the production quality of metal parts.

[0008] Preferably, the lower tooling is provided with a concave block, the concave block is provided with a groove, and the bottom end of the groove is close to the core side of the lower tooling, and the upper tooling is provided with a convex block that can cooperate with the concave block. When the upper tooling slides toward the side of the lower tooling, the convex block cooperates with the concave block. When the upper tooling slides toward the side away from the lower tooling, the convex part of the convex block always faces the groove.

[0009] By adopting the above technical solution, the arrangement of the concave blocks and convex blocks plays a role in positioning and limiting the upper and lower tooling after they are matched, reducing the possibility of deviation when the upper and lower tooling are matched; and when the upper tooling slides toward one side of the lower tooling, the concave blocks and convex blocks guide the rotation of the lower tooling, reducing the possibility of the lower tooling rotating to the other side; at the same time, the concave blocks are arranged on the lower tooling, which makes it easier for the lower tooling to rotate by its weight when the upper tooling slides toward one side of the lower tooling.

[0010] Preferably, the unloading mechanism includes a conveyor belt, multiple shock-absorbing plates and a drive assembly. A frame is provided on one side of the workbench. The conveyor belt is connected to the frame. The multiple shock-absorbing plates are evenly distributed along the outer surface of the conveyor belt. The drive assembly is used to drive the transmission of the conveyor belt. When the upper tooling moves toward the side away from the lower tooling, the lower tooling rotates toward the side of the conveyor belt.

[0011] By adopting the above technical solution, when the lower tooling rotates toward one side of the conveyor belt, the metal parts on the lower tooling roll down onto the conveyor belt along the lower tooling, and the transmission of the conveyor belt is driven by the driving part. By arranging multiple shock-absorbing plates on the conveyor belt, the metal parts roll down to between the two shock-absorbing plates for transmission, thereby reducing the possibility of metal parts colliding or two metal parts colliding with each other, resulting in the ball head falling off or the surface being damaged, so as to improve the production quality of metal parts, and keep the metal parts in a uniform direction for transmission, which is convenient for subsequent processing and handling, and at the same time facilitates the observation of metal parts on the conveyor belt, reducing the possibility of defective or defective products flowing into subsequent processing.

[0012] Preferably, the driving assembly includes two swing arms, an extension arm and a half gear, the frame is rotatably connected to a plurality of toothed rollers, the conveyor belt is wound around a plurality of toothed rollers and meshed with a plurality of toothed rollers, the frame is rotatably connected to a one-way bearing, any of the toothed rollers is coaxial and fixedly connected to the outer ring of the one-way bearing, the inner ring of the one-way bearing is coaxial and fixedly connected to a pinion, the half gear is rotatably connected to the frame, and the half gear is meshed with the pinion, the two swing arms are rotatably connected to the frame at the same time, and the two swing arms are coaxial and fixedly connected to the half gear, the extension arm is fixedly connected to the lower tooling, and the extension arm is located between the angles of the two swing arms, when the lower tooling rotates in different directions, the extension arm respectively abuts against the two swing arms, and the one-way bearing rotates only when the lower tooling rotates toward one side of the conveyor belt.

[0013] By adopting the above technical solution, the lower tooling moves the extension rod during the rotation process, and the swing rod drives the half gear to rotate, and through the engagement between the half gear and the pinion, the pinion and the toothed roller coaxial with the pinion rotate, thereby transmitting the conveyor belt meshed with the toothed roller; and by providing a one-way bearing, when the lower tooling rotates toward one side of the conveyor belt, the one-way bearing drives the toothed roller to rotate, and when the lower tooling rotates toward the side of the upper tooling, the one-way bearing does not drive the gear to rotate, thereby allowing the conveyor belt to be transmitted to one side; and the conveyor belt is transmitted by the rotation of the lower tooling, so that the metal parts on the lower tooling can fall between two different shock-absorbing plates respectively, reducing the possibility of the two metal parts colliding with each other.

[0014] Preferably, the extension rod is detachably connected to a side of the lower tooling close to the second feeding mechanism, and a guide opening is provided on the extension rod, and the guide opening is directly facing the core part of the lower tooling.

[0015] By adopting the above technical solution, the setting of the guide port guides the second loading mechanism to transport the mirror rod to the mold core, reducing the possibility that the mirror rod cannot enter the lower tooling mold core due to the swing of the lower tooling, and at the same time makes the extension rod detachable and connected to the lower tooling, which is convenient for replacing the extension rod and reduces the possibility of excessive wear of the extension rod.

[0016] Preferably, the second feeding mechanism includes a barrel, an abutment platform and a second cylinder, the barrel and the abutment platform are respectively fixedly connected to the workbench, the abutment platform is provided with a feeding trough, the barrel is provided with a feeding channel, the feeding channel is connected to the feeding channel at one end away from the barrel, the second cylinder is fixedly connected to the workbench, the piston rod of the second cylinder is slidably connected to the feeding channel, and when the lower tooling rotates to the extreme position toward the side away from the conveyor belt, the feeding trough is coaxial with the guide port.

[0017] By adopting the above technical solution, the mirror rod is placed in the barrel, and the mirror rod rolls along the feeding channel to the feeding trough of the abutment table, and is pushed by the piston rod of the second cylinder to push the mirror rod in the feeding trough toward the side of the lower tooling into the mold core of the lower tooling. During the welding process, it still abuts against the mirror rod to limit the axial position of the mirror rod and block the opening side of the feeding channel at the same time; when the piston rod of the second cylinder is reset, the next mirror rod in the feeding channel rolls into the feeding trough, and the automatic loading of the mirror rod is completed through the piston movement of the piston rod of the second cylinder.

[0018] Preferably, the first feeding mechanism includes a vibrating plate, a sliding seat, a hollow tube, a hose and a first driving member, the sliding seat is slidably connected to the workbench, the backing mold is arranged on the sliding seat, the vibrating plate is arranged on the workbench, the hollow tube is fixedly connected to the backing mold, the two ends of the hose in the axial direction are respectively fixedly connected to the hollow tube and the vibrating plate, and the two ends of the hose are respectively connected to the hollow tube and the discharge end of the vibrating plate, the first driving member is used to drive the sliding of the sliding seat, during the welding process, the first driving member drives the sliding seat to slide toward the side of the lower tooling, and when the welding is completed, the first driving member drives the sliding seat to slide toward the side away from the lower tooling.

[0019] By adopting the above technical solution, the ball head is placed in the vibration plate, and the vibration of the vibration plate transports the ball head into the hose in an orderly manner, and falls onto the mold along the hollow tube; when welding, the first driving member drives the sliding seat to slide toward the side of the lower tooling, so that the ball head on the mold abuts against the mirror rod; when welding is completed, the first driving member drives the sliding seat to slide toward the side away from the lower tooling, so that the welded ball head is separated from the mold, and the next ball head falls onto the mold; the setting of the hose reduces the possibility of interference with the sliding of the sliding seat, and when the sliding seat slides, the hose and the ball head in the hollow tube move due to inertia, reducing the possibility of the ball head in the hose or the hollow tube getting stuck, and increasing the continuity of the ball head loading.

[0020] Preferably, the welding assembly includes a plurality of welding heads and a power supply, the plurality of welding heads are fixedly connected to the mold, the power supply is fixedly connected to the workbench, and the power supply is electrically connected to the plurality of welding heads.

[0021] By adopting the above technical solution, the power supply outputs appropriate current and voltage to the welding joint to generate high temperature, so that the part where the ball head and the mirror rod are in contact is partially melted. When the liquid metal cools and solidifies, the ball head and the mirror rod are welded to form a metal part. The welding head is set at the mold to facilitate positioning of the welding position. There is a possibility that the welding position of the ball head and the mirror rod deviates, which may affect the welding quality of the metal part.

[0022] Preferably, a contact button is provided on the workbench, and the contact button is located on the moving path of the lower tooling. A controller is provided on the workbench, and the controller is used to receive the signal of the contact button and control the power supply to energize the welding head. When the lower tooling cooperates with the upper tooling, the lower tooling abuts against the contact button.

[0023] By adopting the above technical solution, when the lower tooling cooperates with the upper tooling, the lower tooling and the upper tooling clamp and limit the mirror rod and the ball head abuts against the mirror rod. At this time, the lower tooling abuts against the contact button, so that the power supply energizes the welding joint for welding, so as to improve the degree of automation of the welding process, and welds after the mirror rod and the ball head are in place, reducing the possibility of premature or delayed welding of the welding head affecting the welding quality of the metal parts; and the contact button is provided with a reset spring, which can reduce the possibility of the lower tooling not rotating.

[0024] The technical effects of the present invention are mainly reflected in the following aspects:

[0025] 1. The present invention sets a positioning fixture. During the process in which the third driving member drives the upper tooling to move toward the lower tooling, the first feeding mechanism and the second feeding mechanism respectively convey the ball head and the mirror rod to the mold and the lower tooling. When the upper tooling and the lower tooling cooperate, the welding assembly welds the ball head and the mirror rod; after the welding is completed, the third driving member drives the lower tooling to slide toward the side away from the upper tooling, and the lower tooling rotates toward the side of the blanking mechanism, so that the welded metal parts on the lower tooling mold core roll along the lower tooling toward the blanking mechanism to be conveyed to the blanking mechanism; thereby realizing automatic loading of the mirror rod and the ball head and automatic unloading of the metal parts after welding; thereby improving the automation and safety of the welding process and reducing the possibility of safety hazards; at the same time, reducing the possibility of the ball head being knocked off by a strong impact after welding, thereby improving the production quality of metal parts;

[0026] 2. The present invention provides a material discharge mechanism. When the lower tooling rotates toward one side of the conveyor belt, the metal parts on the lower tooling roll down onto the conveyor belt along the lower tooling. The conveyor belt is driven by a driving member. A plurality of shock-absorbing plates are provided on the conveyor belt to cause the metal parts to roll down between two shock-absorbing plates for transmission. This reduces the possibility of metal parts colliding or two metal parts colliding with each other, resulting in the ball head falling off or surface damage, thereby improving the production quality of metal parts. The metal parts are kept in a uniform direction for transmission, which is convenient for subsequent processing and handling. At the same time, it is convenient to observe the metal parts on the conveyor belt, reducing the possibility of defective or substandard products flowing into subsequent processing.

[0027] 3. The present invention provides a driving part, so that the lower tooling moves the extension rod during the rotation process, and the swing rod drives the half gear to rotate, and the engagement between the half gear and the pinion makes the pinion and the toothed roller coaxial with the pinion rotate, thereby transmitting the conveyor belt meshed with the toothed roller; and by providing a one-way bearing, when the lower tooling rotates toward one side of the conveyor belt, the one-way bearing drives the toothed roller to rotate, and when the lower tooling rotates toward the side of the upper tooling, the one-way bearing does not drive the gear to rotate, thereby allowing the conveyor belt to transmit to one side; and the transmission is linked to the conveyor belt by the rotation of the lower tooling, so that the metal parts on the lower tooling can fall between two different shock-absorbing plates respectively, reducing the possibility of the two metal parts colliding with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of the structure during welding of an embodiment of the present application.

[0030] Figure 3 It is along Figure 2 Enlarged view of point A in the middle.

[0031] Figure 4 This is a partial schematic diagram of the driving assembly of an embodiment of the present application when the upper tooling and the lower tooling are coordinated.

[0032] Figure 5 This is a partial schematic diagram of the driving assembly of the embodiment of the present application when the upper tooling and the lower tooling are separated.

[0033] Figure 6 It is a structural diagram of the driving component of an embodiment of the present application.

[0034] Figure 7 This is a schematic structural diagram of the first feeding mechanism of an embodiment of the present application.

[0035] Figure 8 It is a structural schematic diagram of the second feeding mechanism of an embodiment of the present application.

[0036] Figure 9 It is a schematic diagram of the blanking component structure of an embodiment of the present application.

[0037] Explanation of reference numerals: 1. workbench; 11. contact button; 12. controller; 13. logistics box; 2. first loading mechanism; 21. vibration plate; 22. sliding seat; 23. hollow tube; 24. hose; 25. first driving member; 251. first cylinder; 3. second loading mechanism; 31. barrel; 32. feeding channel; 33. abutment platform; 34. feeding trough; 35. second cylinder; 4. unloading mechanism; 41. frame; 42. conveyor belt; 43. shock-absorbing plate ;44. Driving assembly;441. Swing rod;442. Extension rod;4421. Guide port;443. Half gear;444. Pinion;445. One-way bearing;446. Tooth roller;5. Welding assembly;51. Welding head;52. Power supply;6. Positioning fixture;61. Upper tooling;611. Protrusion;62. Lower tooling;621. Concave block;622. Groove;63. Third driving part;631. Hydraulic cylinder;7. Backing mold;8. Ball head;9. Mirror rod. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1-9 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0039] The embodiment of the present application discloses an automatic welding machine for metal parts of a rearview mirror.

[0040] Reference Figure 1 and Figure 2 , an automatic welding machine for rearview mirror metal parts of this embodiment includes a workbench 1, a first feeding mechanism 2, a second feeding mechanism 3, a feeding mechanism 4 and a welding assembly 5 for welding a ball head 8 and a mirror rod 9. The workbench 1 is provided with a backing mold 7 cooperating with the ball head 8 and a positioning fixture 6 cooperating with the mirror rod 9. The positioning fixture 6 includes an upper tooling 61, a lower tooling 62 and a third driving member 63. The first feeding mechanism 2 is used to transport the ball head 8 to the backing mold 7, and the second feeding mechanism 3 is used to load the mirror rod 9 onto the lower tooling 62; the upper tooling 61 is connected to the workbench 1 in a vertical sliding direction, and the lower tooling 62 is connected to the workbench 1 in a rotation direction perpendicular to the sliding direction of the upper tooling 61. The third driving member 63 is used to drive the upper tooling 61 to slide up and down. The third driving member 63 is a hydraulic cylinder 631. The hydraulic cylinder 631 is fixedly connected to the workbench 1, and one end of the piston rod of the hydraulic cylinder 631 is fixedly connected to the upper tooling 61. When the upper tooling 61 moves toward the lower tooling 62, the lower tooling 62 rotates toward the upper tooling 61 to cooperate with the upper tooling 61. When the upper tooling 61 moves toward the side away from the lower tooling 62, the lower tooling 62 rotates toward the blanking mechanism 4 and transports the welded metal parts to the blanking mechanism 4.

[0041] Reference Figure 4 and Figure 5The lower tooling 62 is fixedly connected to a concave block 621, and a groove 622 is opened on the concave block 621, and the bottom end of the groove 622 is close to the core side of the lower tooling 62. The upper tooling 61 is fixedly connected to a convex block 611 that can cooperate with the concave block 621. When the upper tooling 61 slides toward the side of the lower tooling 62, the convex block 611 cooperates with the concave block 621. When the upper tooling 61 slides toward the side away from the lower tooling 62, the convex part of the convex block 611 always faces the groove 622. The arrangement of the concave block 621 and the convex block 611 plays a role in positioning and limiting the upper tooling 61 and the lower tooling 62 after they are matched, thereby reducing the possibility of deviation when the upper tooling 61 and the lower tooling 62 are matched; and when the upper tooling 61 slides toward one side of the lower tooling 62, the concave block 621 and the convex block 611 guide the rotation of the lower tooling 62, thereby reducing the possibility of the lower tooling 62 rotating toward the other side; at the same time, the concave block 621 is arranged on the lower tooling 62, which makes it easier for the lower tooling 62 to rotate by its weight when the upper tooling 61 slides toward one side of the lower tooling 62.

[0042] Reference Figure 1-Figure 5 When the upper tooling 61 is moved to the lower tooling 62 by the piston movement of the piston rod of the hydraulic cylinder 631, the upper tooling 61 slides repeatedly in the vertical direction. In the process of the hydraulic cylinder 631 driving the upper tooling 61 to move toward the lower tooling 62, the first feeding mechanism 2 and the second feeding mechanism 3 respectively transport the ball head 8 and the mirror rod 9 to the mold 7 and the lower tooling 62. When the upper tooling 61 and the lower tooling 62 cooperate, the welding assembly 5 welds the ball head 8 and the mirror rod 9; after welding is completed, the third driving member 63 drives the lower tooling 62 to slide toward the side away from the upper tooling 61, and the lower tooling 62 rotates toward the side of the blanking mechanism 4, so that the welded metal parts on the mold core of the lower tooling 62 roll along the lower tooling 62 toward the blanking mechanism 4 to be transported to the blanking mechanism 4; to realize automatic loading of the mirror rod 9 and the ball head 8 and automatic unloading of the metal parts after welding; to improve the automation and safety of the welding process and reduce the possibility of safety hazards; at the same time, it reduces the possibility of the ball head 8 being knocked off by a strong impact after welding, so as to improve the production quality of metal parts.

[0043] Reference Figure 1 and Figure 2 The unloading mechanism 4 includes a conveyor belt 42, multiple shock-absorbing plates 43 and a drive assembly 44. A frame 41 is installed on one side of the workbench 1, and a logistics box 13 is placed next to the frame 41. The conveyor belt 42 is connected to the frame 41 for transmission. The two ends of the conveyor belt 42 in the transmission direction are respectively facing the lower tooling 62 and the logistics box 13. Multiple shock-absorbing plates 43 are evenly distributed along the outer surface of the conveyor belt 42. The drive assembly 44 is used to drive the transmission of the conveyor belt 42. When the upper tooling 61 moves toward the side away from the lower tooling 62, the lower tooling 62 rotates toward the side of the conveyor belt 42.

[0044] Reference Figure 4 、 Figure 5 and Figure 6 The driving assembly 44 includes two swing rods 441, an extension rod 442 and a half gear 443. A plurality of toothed rollers 446 are rotatably connected to the frame 41. The conveyor belt 42 is wound around the plurality of toothed rollers 446 and meshed with the plurality of toothed rollers 446. A one-way bearing 445 is rotatably connected to the frame 41. Any toothed roller 446 is coaxial with and fixedly connected to the outer ring of the one-way bearing 445. A small gear 444 is coaxially and fixedly connected to the inner ring of the one-way bearing 445. The half gear 443 is rotatably connected to the frame 41, and the half gear 443 is rotatably connected to the frame 41. The gear 443 is meshed with the pinion 444, and the two swing arms 441 are rotated and connected to the frame 41 at the same time. The two swing arms 441 are coaxial with the half gear 443 and fixedly connected. The extension rod 442 is fixedly connected to the lower tooling 62, and the extension rod 442 is located between the angles of the two swing arms 441. When the lower tooling 62 rotates in different directions, the extension rod 442 abuts against the two swing arms 441 respectively, and the one-way bearing 445 rotates only when the lower tooling 62 rotates toward one side of the conveyor belt 42.

[0045] Reference Figure 4 、 Figure 5 and Figure 6 The extension rod 442 is threadedly connected to the lower fixture 62 via bolts, i.e., it is detachably connected to the side of the lower fixture 62 near the second feeding mechanism 3. A guide opening 4421 is provided on the extension rod 442, which is coaxial with and directly faces the core portion of the lower fixture 62. The provision of the guide opening 4421 guides the second feeding mechanism 3 in conveying the mirror rod 9 to the mold core, thereby reducing the possibility that the mirror rod 9 cannot enter the mold core of the lower fixture 62 due to the swinging of the lower fixture 62. At the same time, the extension rod 442 is detachably connected to the lower fixture 62, making it easy to replace the extension rod 442 and reducing the possibility of excessive wear of the extension rod 442. The extension rod 442 also serves as a weight-adding counterweight, thereby reducing the possibility that the extension rod 442 cannot press down the swinging rod 441.

[0046] Reference Figure 3-Figure 6During the rotation of the lower tooling 62, the extension rod 442 moves, and the swing rod 441 drives the half gear 443 to rotate. Through the meshing between the half gear 443 and the pinion 444, the pinion 444 and the toothed roller 446 coaxial with the pinion 444 rotate, thereby transmitting the conveyor belt 42 meshed with the toothed roller 446; and by providing a one-way bearing 445, when the lower tooling 62 rotates toward one side of the conveyor belt 42, the one-way bearing 445 drives the toothed roller 446 to rotate, and when the lower tooling 62 rotates toward the side of the upper tooling 61, the one-way bearing 445 does not drive the gear to rotate, so that the conveyor belt 42 can be transmitted to one side; and the conveyor belt 42 is driven by the rotation of the lower tooling 62, so that the metal parts on the lower tooling 62 can fall between two different shock-absorbing plates 43 respectively, reducing the possibility of collision between the two metal parts.

[0047] Reference Figure 1 、 Figure 2 and Figure 9 When the lower tooling 62 rotates toward the side of the conveyor belt 42, the metal parts on the lower tooling 62 roll down onto the conveyor belt 42 along the lower tooling 62, and the transmission of the conveyor belt 42 is driven by the driving member. By setting multiple shock-absorbing plates 43 on the conveyor belt 42, the metal parts roll down to between the two shock-absorbing plates 43 for transmission, thereby reducing the possibility of metal parts colliding or two metal parts colliding with each other, causing the ball head 8 to fall off or the surface to be damaged, so as to improve the production quality of the metal parts, and the metal parts are kept in a uniform direction for transmission and fall into the logistics box 13, which is convenient for subsequent processing and handling, and at the same time, it is convenient to observe the metal parts on the conveyor belt 42, reducing the possibility of defective or defective products flowing into subsequent processing.

[0048] Reference Figure 1 、 Figure 2 and Figure 8The second feeding mechanism 3 includes a barrel 31, an abutment platform 33 and a second cylinder 35. The barrel 31 and the abutment platform 33 are respectively fixedly connected to the workbench 1. A feeding trough 34 is provided on the abutment platform 33. The barrel 31 is fixedly connected and connected with a feeding channel 32. The end of the feeding channel 32 away from the barrel 31 is connected to the feeding channel 32. The second cylinder 35 is fixedly connected to the workbench 1. The piston rod of the second cylinder 35 is slidably connected to the feeding channel 32. When the lower tooling 62 rotates to the extreme position toward the side away from the conveyor belt 42, the feeding trough 34 is coaxial with the guide port 4421. The mirror rod 9 is placed in the barrel 31, and the mirror rod 9 rolls along the feeding channel 32 to the feeding trough 34 of the abutment table 33, and is pushed by the piston rod of the second cylinder 35 to push the mirror rod 9 in the feeding trough 34 toward the side of the lower tooling 62 to the mold core of the lower tooling 62. During the welding process, it still abuts against the mirror rod 9 to limit the axial position of the mirror rod 9 and block the opening side of the feeding channel 32 at the same time; when the piston rod of the second cylinder 35 is reset, the next mirror rod 9 in the feeding channel 32 rolls into the feeding trough 34, and the automatic loading of the mirror rod 9 is completed through the piston movement of the piston rod of the second cylinder 35.

[0049] Reference Figure 1 、 Figure 2 and Figure 7 The first feeding mechanism 2 includes a vibrating plate 21, a sliding seat 22, a hollow tube 23, a hose 24 and a first driving member 25. The sliding seat 22 is slidably connected to the workbench 1 along the rotation direction of the lower tooling 62, the backing mold 7 is fixedly connected to the sliding seat 22, the vibrating plate 21 is fixedly connected to the workbench 1, the hollow tube 23 is fixedly connected to the backing mold 7, and the two ends of the hose 24 in the axial direction are respectively fixedly connected to the hollow tube 23 and the vibrating plate 21, and the two ends of the hose 24 are respectively connected to the hollow tube 23 and the discharge end of the vibrating plate 21. The first driving member 25 is used to drive the sliding of the sliding seat 22. During the welding process, the first driving member 25 drives the sliding seat 22 to slide toward the side of the lower tooling 62. When the welding is completed, the first driving member 25 drives the sliding seat 22 to slide toward the side away from the lower tooling 62. The first driving member 25 is a first cylinder 251 . The first cylinder 251 is fixedly connected to the workbench 1 . One end of a piston rod of the first cylinder 251 is fixedly connected to the sliding seat 22 .

[0050] Reference Figure 1 、 Figure 2 and Figure 7, the ball head 8 is placed in the vibrating plate 21, and the ball head 8 is transported to the hose 24 in an orderly manner through the vibration of the vibrating plate 21, and falls on the back mold 7 along the hollow tube 23; the sliding seat 22 is caused to slide back and forth by the piston movement of the piston rod of the first cylinder 251. When welding, the first cylinder 251 drives the sliding seat 22 to slide toward the side of the lower tooling 62, so that the ball head 8 on the back mold 7 abuts against the mirror rod 9; when welding is completed, the first cylinder 251 drives the sliding seat 22 to slide toward the side away from the lower tooling 62, so that the welded ball head 8 is separated from the back mold 7, and the next ball head 8 falls on the back mold 7; the setting of the hose 24 reduces the possibility of interference with the sliding seat 22 when sliding, and when the sliding seat 22 slides, the hose 24 and the ball head 8 in the hollow tube 23 move due to inertia, reducing the possibility of the ball head 8 in the hose 24 or the hollow tube 23 getting stuck, thereby increasing the continuity of the ball head 8 feeding.

[0051] Reference Figure 1 、 Figure 2 and Figure 7 The welding assembly 5 includes a plurality of welding heads 51 and a power supply 52. ​​The welding heads 51 are fixedly connected to the mold 7, and the power supply 52 is fixedly connected to the workbench 1. The power supply 52 is electrically connected to the welding heads 51. The power supply 52 outputs a suitable current and voltage to the welding heads 51 to generate a high temperature, so that the part where the ball head 8 and the mirror rod 9 abut each other partially melts. When the liquid metal cools and solidifies, the ball head 8 and the mirror rod 9 are welded to form a metal part. The welding heads 51 are arranged on the mold 7 to facilitate positioning of the welding position. There is a possibility that the welding position of the ball head 8 and the mirror rod 9 deviates and affects the welding quality of the metal parts.

[0052] Reference Figure 4 and Figure 5 A contact button 11 is installed on the workbench 1. A return spring is fixedly connected to the contact button 11, which always drives the contact button 11 to slide toward the side of the upper tooling 61. The contact button 11 is located on the moving path of the lower tooling 62. A controller 12 is provided on the workbench 1. The controller 12 is used to receive the signal of the contact button 11 and control the power supply 52 to energize the welding head 51. When the lower tooling 62 cooperates with the upper tooling 61, the lower tooling 62 abuts on the contact button 11. When the lower tooling 62 cooperates with the upper tooling 61, the lower tooling 62 and the upper tooling 61 clamp and limit the mirror rod 9 and the ball head 8 abuts on the mirror rod 9. At this time, the lower tooling 62 abuts on the contact button 11, causing the power supply 52 to energize the welding head 51 for welding, thereby improving the degree of automation of the welding process. The mirror rod 9 and the ball head 8 are in place before welding, reducing the possibility that premature welding or delayed welding of the welding head 51 will affect the welding quality of the metal parts. Furthermore, the contact button 11 is provided with a return spring, which can reduce the possibility that the lower tooling 62 does not rotate.

[0053] Reference Figure 1 and Figure 2 The controller 12 is also used to control the movement of power components such as the hydraulic cylinder 631, the first cylinder 251 and the second cylinder 35, so as to achieve the overall coordination of the automatic welding machine and enable each mechanism to cooperate to complete the operation.

[0054] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. An automatic welding machine for rearview mirror metal parts, comprising a workbench (1), characterized in that: The invention also comprises a first feeding mechanism (2), a second feeding mechanism (3), a feeding mechanism (4) and a welding assembly (5) for welding a ball head (8) and a mirror rod (9); the workbench (1) is provided with a mold (7) matched with the ball head (8) and a positioning fixture (6) matched with the mirror rod (9); the positioning fixture (6) comprises an upper tooling (61), a lower tooling (62) and a third driving member (63); the first feeding mechanism (2) is used for conveying the ball head (8) onto the mold (7); the second feeding mechanism (3) is used for conveying the mirror rod (9) onto the lower tooling (62); The upper tooling (61) is slidably connected to the workbench (1), the lower tooling (62) is rotatably connected to the workbench (1), and the third driving member (63) is used to drive the upper tooling (61) to move up and down. When the upper tooling (61) moves toward the side of the lower tooling (62), the lower tooling (62) rotates toward the side of the upper tooling (61) to cooperate with the upper tooling (61). When the upper tooling (61) moves toward the side away from the lower tooling (62), the lower tooling (62) rotates toward the side of the unloading mechanism (4) and transports the welded metal parts to the unloading mechanism (4).

2. The automatic welding machine for rearview mirror metal parts according to claim 1, characterized in that: The lower tooling (62) is provided with a concave block (621), the concave block (621) is provided with a groove (622), and the bottom end of the groove (622) is close to one side of the core of the lower tooling (62), and the upper tooling (61) is provided with a convex block (611) that can cooperate with the concave block (621), when the upper tooling (61) slides toward one side of the lower tooling (62), the convex block (611) cooperates with the concave block (621), and when the upper tooling (61) slides toward the side away from the lower tooling (62), the convex part of the convex block (611) always faces the groove (622).

3. The automatic welding machine for rearview mirror metal parts according to claim 1, characterized in that: The unloading mechanism (4) comprises a conveyor belt (42), a plurality of damping plates (43) and a driving assembly (44); a frame (41) is provided on one side of the workbench (1); the conveyor belt (42) is connected to the frame (41) in a driving manner; the plurality of damping plates (43) are evenly distributed along the outer surface of the conveyor belt (42); the driving assembly (44) is used to drive the transmission of the conveyor belt (42); when the upper tooling (61) moves toward a side away from the lower tooling (62), the lower tooling (62) rotates toward the side of the conveyor belt (42).

4. The automatic welding machine for rearview mirror metal parts according to claim 3, characterized in that: The driving assembly (44) comprises two swinging rods (441), an extension rod (442) and a half gear (443); a plurality of toothed rollers (446) are rotatably connected to the frame (41); the conveyor belt (42) is wound around the plurality of toothed rollers (446) and meshedly connected to the plurality of toothed rollers (446); a one-way bearing (445) is rotatably connected to the frame (41); any of the toothed rollers (446) is coaxially and fixedly connected to the outer ring of the one-way bearing (445); a pinion (444) is coaxially and fixedly connected to the inner ring of the one-way bearing (445); the half gear (443) is rotatably connected to the frame (41); The half gear (443) is meshedly connected with the pinion (444), the two swing arms (441) are simultaneously rotatably connected to the frame (41), and the two swing arms (441) are coaxially and fixedly connected to the half gear (443), the extension rod (442) is fixedly connected to the lower tooling (62), and the extension rod (442) is located between the angles of the two swing arms (441), when the lower tooling (62) rotates in different directions, the extension rod (442) respectively abuts against the two swing arms (441), and the one-way bearing (445) rotates only when the lower tooling (62) rotates toward one side of the conveyor belt (42).

5. The automatic welding machine for rearview mirror metal parts according to claim 4, characterized in that: The extension rod (442) is detachably connected to a side of the lower tooling (62) close to the second feeding mechanism (3); a guide opening (4421) is provided on the extension rod (442), and the guide opening (4421) faces the core portion of the lower tooling (62).

6. The automatic welding machine for rearview mirror metal parts according to claim 5, characterized in that: The second feeding mechanism (3) comprises a barrel (31), an abutment platform (33) and a second cylinder (35); the barrel (31) and the abutment platform (33) are respectively fixedly connected to the workbench (1); the abutment platform (33) is provided with a feeding trough (34); the barrel (31) is provided with a feeding channel (32); the feeding channel (32) is connected to the feeding channel (32) at one end away from the barrel (31); the second cylinder (35) is fixedly connected to the workbench (1); the piston rod of the second cylinder (35) is slidably connected to the feeding channel (32); when the lower tooling (62) rotates to the extreme position toward the side away from the conveyor belt (42), the feeding trough (34) is coaxial with the guide port (4421).

7. The automatic welding machine for rearview mirror metal parts according to claim 1, characterized in that: The first feeding mechanism (2) comprises a vibrating plate (21), a sliding seat (22), a hollow tube (23), a hose (24) and a first driving member (25); the sliding seat (22) is slidably connected to the workbench (1); the backing mold (7) is arranged on the sliding seat (22); the vibrating plate (21) is arranged on the workbench (1); the hollow tube (23) is fixedly connected to the backing mold (7); and the two ends of the hose (24) in the axial direction are respectively fixedly connected to the hollow tube (23). (23) and the vibration plate (21), and the two ends of the hose (24) are respectively connected to the discharge ends of the hollow tube (23) and the vibration plate (21), and the first driving member (25) is used to drive the sliding seat (22) to slide. During the welding process, the first driving member (25) drives the sliding seat (22) to slide toward the side of the lower tooling (62), and when the welding is completed, the first driving member (25) drives the sliding seat (22) to slide toward the side away from the lower tooling (62).

8. The automatic welding machine for rearview mirror metal parts according to claim 7, characterized in that: The welding assembly (5) comprises a plurality of welding heads (51) and a power source (52); the plurality of welding heads (51) are respectively fixedly connected to a mold (7); the power source (52) is fixedly connected to a workbench (1); and the power source (52) is electrically connected to the plurality of welding heads (51).

9. The automatic welding machine for rearview mirror metal parts according to claim 8, characterized in that: The workbench (1) is provided with a contact button (11), and the contact button (11) is located on the moving path of the lower tooling (62). The workbench (1) is provided with a controller (12), and the controller (12) is used to receive a signal from the contact button (11) and control a power supply (52) to energize the welding head (51). When the lower tooling (62) cooperates with the upper tooling (61), the lower tooling (62) abuts against the contact button (11).

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