An automated welding production line for terminal blocks with connecting inserts.

Abstract

This application discloses an automated terminal block welding production line with connecting inserts, including a base, a housing, a platform, and a drive unit. The base is equipped with a track assembly, and the platform edge has multiple placement openings for placing terminals to be welded. A robotic arm is located on the top of the base for gripping the terminals to be welded to the placement openings. A clamping mechanism is located on the platform, including an abutment component located on one side of the placement opening and an elastic clamping component that closes only under the guidance of the track assembly and cooperates with the abutment component to clamp the terminals to be welded. The base is equipped with a feeding mechanism for conveying and providing inserts one by one, and a welding assembly for welding the inserts to the pins of the terminals to be welded. A pushing assembly is located on the platform for pushing the welded terminals out of the placement openings. In this application, the entire process is controlled by the control center of the automated terminal block welding production line, improving the welding efficiency of terminals and inserts.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to an automatic welding production line for terminals with connecting inserts. Background Technology

[0002] In the core components of a refrigerator's refrigeration compressor, the terminal block is a key component for realizing circuit connections. It is usually composed of a cap, pin, and glass bead. The pin serves as the core structure for conductive connections. To achieve specific connections, some terminal blocks require soldering connecting tabs to the outer ends of the pins.

[0003] Chinese utility model patent CN210937751U discloses a welding error-proof positioning device for the upper housing of a compressor and the wiring terminals. The device includes a body, a positioning mechanism, a control device mounted on the body, a workbench mounted at the front of the body, and a shelf mounted above the workbench for placing the upper housing of the compressor. The positioning mechanism includes a positioning post mounted on the workbench and extending upward through the shelf for placing the wiring terminals, and an image sensor mounted at the front of the body and above the shelf for detecting the orientation of the wiring terminal flaps. The positioning post has a mounting hole penetrating its upper part, and the bottom of the mounting hole has three insertion holes arranged in a triangular pattern corresponding to the wiring terminals. The upper part of the positioning post has a surrounding plate extending upward and connecting to the side wall of the mounting hole. The control device is electrically connected to the image sensor via a circuit.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When using the above-mentioned device to weld the wing (equivalent to the insert) to the terminal (equivalent to the pin), the terminal needs to be manually placed on the positioning post. After the wing and the terminal are welded, the terminal needs to be manually removed and the next terminal needs to be placed. The whole operation process is cumbersome and affects the welding efficiency of the terminal and the insert. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides an automated welding production line for terminal blocks with connecting inserts.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic welding production line for terminals with connecting inserts, comprising a base, a cover fixed to the top of the base, a platform rotatably mounted on the top of the cover, and a driving component disposed inside the cover and driving the platform to rotate. A track assembly is disposed on the base, and multiple placement openings for placing terminals to be welded are disposed on the edge of the platform. A robotic arm for clamping the terminals to be welded to the placement openings is disposed on the top of the base. A clamping mechanism is disposed on the platform, the clamping mechanism including an abutment component disposed on one side of the placement opening and an elastic clamping component that closes only under the guidance of the track assembly and cooperates with the abutment component to clamp the terminals to be welded. A feeding mechanism for conveying and providing inserts one by one is disposed on the base, and a welding assembly for welding the inserts to the pins of the terminals to be welded is disposed on the platform. A pushing assembly for pushing the terminals that have been welded and left the track assembly out of the placement openings is disposed on the platform.

[0007] By adopting the above technical solution, the robotic arm can grip the wire terminal to be welded and place it at the placement port. The drive component drives the platform to rotate, which in turn causes the wire terminal to be welded to rotate synchronously. The elastic clamping component gradually closes under the guidance of the track component and cooperates with the abutment component to clamp the wire terminal to be welded. When the wire terminal to be welded rotates with the platform to the bottom of the welding component, the feeding mechanism provides a insert to the top of the wire terminal to be welded. The welding component then completes the welding work between the wire terminal to be welded and the insert. When the platform drives the welded terminal to disengage from the track component, the pushing component pushes the welded terminal off the platform to complete the unloading. The entire process is controlled by the control center of the automatic welding production line for wire terminals, which improves the welding efficiency between the wire terminal and the insert.

[0008] Furthermore, the contact component includes two friction wheels located on the top of the platform, both positioned near the platform axis of the placement opening. The elastic clamping component includes a rotating shaft rotatably mounted on the bottom of the platform, a swing rod fixedly sleeved on the rotating shaft, and a limiting wheel rotatably mounted on the top of the swing rod away from the rotating shaft. An installation notch is provided at the intersection between the top of the swing rod and the end of the swing rod near the platform axis. The elastic clamping component also includes a torsion spring sleeved on the rotating shaft, with one end of the torsion spring fixed to the bottom of the platform and the other end fixed to the bottom wall of the installation notch. The swing rod remains offset from the placement opening under the torque of the torsion spring. When the end of the swing rod away from the rotating shaft rotates with the platform to the track component, it is acted upon by the track component, causing the limiting wheel to cooperate with the two friction wheels to clamp the end cap of the terminal block.

[0009] Furthermore, the track assembly includes a fixing rod fixed to the top of the platform and an arc-shaped track fixed to the upper end of the fixing rod and coaxially arranged with the platform. The end of the arc-shaped track near the robot arm is bent toward the side away from the axis of the platform.

[0010] By adopting the above technical solution, after the robotic arm picks up the wire terminal to be welded to the placement port, the drive unit controls the control panel to rotate, causing the wire terminal to be welded to rotate. The swing rod is kept away from the placement port under the torque of the torsion spring. The end of the swing rod away from the rotation axis abuts against the inner side of the arc-shaped track and overcomes the torque of the torsion spring, so that the limit wheel swings around the rotation axis with the swing rod until the limit wheel cooperates with the two friction wheels to clamp the end cap of the terminal. When the wire terminal to be welded continues to rotate with the platform to the bottom of the welding assembly, the feeding mechanism provides the insert, and the welding assembly completes the welding work between the insert and the terminal.

[0011] Furthermore, the feeding mechanism includes a feeding assembly, which includes a mounting bracket fixed to the base, a feeding rack fixed to the mounting bracket and vertically arranged, and a blowing nozzle fixed to and connected to the top of the feeding rack. The blowing nozzle is connected to an external high-pressure air supply system. The feeding rack has a feeding port on the side away from the axis of the platform. The feeding rack has a feeding groove for the insertion piece to descend. The discharge port of the feeding groove corresponds to the pin position on the terminal block away from the axis of the platform. The feeding mechanism also includes a limiting component located near the lower end of the feeding rack and blocking the supply of subsequent insertion pieces during the insertion piece welding process, and a pressing component controlling the continued supply of subsequent insertion pieces after the insertion piece welding process.

[0012] Furthermore, the top of the insert extends towards the side closest to the table. The limiting assembly includes an upper L-shaped plate fixed to the side of the feed rack away from the table, an upper sliding rod that passes through and slides on the vertical section of the upper L-shaped plate, an upper limit plate fixed to the end of the upper sliding rod away from the table, a connecting plate fixed to the end of the upper sliding rod close to the table, an upper spring sleeved on the upper sliding rod and fixed between the connecting plate and the vertical section of the upper L-shaped plate, an upper right-angled trapezoidal block fixed to the side of the connecting plate close to the table, a lower L-shaped plate fixed to the side of the feed rack away from the table, a lower sliding rod that passes through and slides on the vertical section of the lower L-shaped plate, a lower limit plate fixed to the end of the lower sliding rod away from the table, and a vertical section sleeved on the lower sliding rod and fixed to the connecting plate and the lower L-shaped plate. The lower spring and the lower right-angled trapezoidal block are fixed to the side of the connecting plate near the platform; the upper and lower ends of the connecting plate abut against the bottom of the upper L-shaped plate and the top of the lower L-shaped plate, respectively; the lower end of the sliding rod near the platform is fixed to the side of the feeding rack away from the platform; the top of the upper right-angled trapezoidal block near the platform and the top of the lower right-angled trapezoidal block near the platform are both inclined surfaces; the feeding rack has an upper hole and a lower hole through which the upper right-angled trapezoidal block and the lower right-angled trapezoidal block pass, respectively; the distance between the bottom of the upper right-angled trapezoidal block and the inclined surface of the lower right-angled trapezoidal block is greater than the length of the insert; the bottom of the insert has a groove corresponding to both the upper and lower right-angled trapezoidal blocks; the thickness of the upper right-angled trapezoidal block and the lower right-angled trapezoidal block is equal and less than the width of the groove.

[0013] Furthermore, the feed trough has a T-shaped cross-section, with its opening facing the side closest to the platform axis. The pressing assembly includes an electric push rod fixed to the top of the mounting frame. The lower end of the electric push rod passes through the top of the mounting frame and is slidably engaged. The pressing assembly also includes a mounting block fixed to the lower end of the electric push rod. The mounting block has a mounting groove on its side wall corresponding to the opening of the feed trough. The pressing assembly also includes a V-shaped elastic sheet fixed to the inner wall of the mounting groove near the platform and a movable block fixed to the side of the V-shaped elastic sheet away from the platform. The two sides of the movable block abut against the inner walls of the two sides of the mounting groove, and the side of the movable block away from the platform extends into the opening of the feed trough. An abutment slope is provided at the intersection of the top of the movable block and the side of the movable block away from the platform.

[0014] By adopting the above technical solution, the upper right-angled trapezoidal block passes through the upper hole under the action of the upper spring, and the lower right-angled trapezoidal block passes through the lower hole under the action of the lower spring. The distance between the upper and lower right-angled trapezoidal blocks determines that only one insert is in the section waiting to be welded at any given time (i.e., the position corresponding to the limiting component). After the previous insert is welded, when the subsequent insert needs to be lowered onto the unwelded pin, the control center controls the electric push rod to make the push rod drive the mounting block to rise. When the abutting slope touches the top of the insert located between the upper and lower right-angled trapezoidal blocks, it drives the insert to move upward a short distance. When the top of the insert abuts the bottom of the upper right-angled trapezoidal block, the abutting slope touches the top of the insert and causes the movable block to gradually retract into the mounting groove. The V-shaped elastic sheet is gradually compressed. As the mounting block and movable block continue to rise until the movable block is higher than the upper right-angled trapezoidal block, the movable block resets under the elastic force of the V-shaped elastic sheet. At this time, the control center controls the electric push rod to make the push rod drive the mounting block to fall. The bottom of the movable block abuts the top of the insert and pushes the insert downward. The groove of the insert acts on the inclined surface of the lower right-angled trapezoidal block and compresses the lower spring until the insert loses the action of the lower right-angled trapezoidal block and falls onto the pin below it. At this time, the control center controls the welding assembly to perform the welding work. During the above process, the upper right-angled trapezoidal block and the lower right-angled trapezoidal block act synchronously. When the upper right-angled trapezoidal block retracts into the upper hole (the insert is driven by the pressure at the bottom of the movable block, causing the lower right-angled trapezoidal block to retract into the lower hole; under the action of the connecting plate, the upper right-angled trapezoidal block retracts synchronously into the upper hole), at this time, the upper insert smoothly enters between the upper right-angled trapezoidal block and the lower right-angled trapezoidal block. After the preceding insert completely disengages from the lower right-angled trapezoidal block, the lower right-angled trapezoidal block and the upper right-angled trapezoidal block quickly return to their original positions under the elastic force of the upper and lower springs, preventing the inserts between them and subsequent inserts from interfering with the welding process.

[0015] Furthermore, the welding assembly includes a vertical linear module set on the top of the base, a horizontal linear module set on the slide of the vertical linear module, and a welding head installed on the slide of the horizontal linear module and corresponding to the position of the insert falling onto the pin. The friction wheel is rotatably mounted on the platform, and a self-rotating motor is fixed at the bottom of the platform. The output end of the self-rotating motor passes through the platform and is fixed to the central axis of the friction wheel. The number of self-rotating motors is equal to the number of friction wheels and their positions correspond one-to-one. The driving component is a rotary motor fixed on the top wall inside the cover. The output end of the rotary motor passes through the cover and is fixed to the central axis of the platform. The side wall of the cover is provided with heat dissipation notches.

[0016] By adopting the above technical solution, both the vertical and horizontal linear modules belong to the commonly used linear module structures in existing technologies. The control center controls the operation of the vertical and horizontal linear modules, thereby controlling the position of the welding head. This facilitates the welding head's work in welding the inserts and pins. After one pin on the terminal block is welded, the control center controls the rotary motor to rotate, causing the friction wheels to rotate. This, in turn, causes the terminal block, which is limited by two friction wheels and one limit wheel, to rotate until the next pin to be welded moves to a position directly opposite the material outlet of the feeding trough, at which point the welding of the next pin can begin. After the control center controls the rotary motor to operate, it can control the rotation of the control panel, which in turn causes the control panel to rotate, gradually completing the clamping, welding, and unloading actions.

[0017] Furthermore, the pushing assembly includes a bracket fixed to the base, a cylinder fixed to the bracket, and a push plate fixed to the end of the piston rod of the cylinder. The bottom of the push plate is higher than the top of the friction wheel and can push the terminal block that has disengaged from the arc-shaped track away from the placement port.

[0018] By adopting the above technical solution, when the welded terminal moves to the position corresponding to the push plate (the placement port corresponding to the terminal is separated from the arc-shaped track), the control center controls the cylinder to run, and causes the push plate to push the terminal, so that the terminal is removed from the platform to complete the unloading.

[0019] Furthermore, a guide frame is fixed on the top of the base, located on one side of the platform, and the position of the guide frame corresponds to the position of the push plate.

[0020] By adopting the above technical solution, the guide frame plays a good supporting role for the terminal blocks. The terminal blocks slide down the guide frame to the stacking area, reducing the probability of the terminal blocks falling directly and causing pin damage.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. In this application, the robotic arm can grip the wire terminal to be welded to the placement port. After the drive unit drives the platform to rotate, the wire terminal to be welded can rotate synchronously. The elastic clamping component gradually closes under the guidance of the track component and cooperates with the abutment component to clamp the wire terminal to be welded. When the wire terminal to be welded rotates with the platform to the bottom of the welding component, the feeding mechanism provides a insert to the top of the wire terminal to be welded. The welding component then completes the welding work between the wire terminal to be welded and the insert. When the platform drives the welded terminal to disengage from the track component, the pushing component pushes the welded terminal off the platform to complete the unloading. The whole process is completed by the control center of the automatic welding production line for terminals, which controls the corresponding components and improves the welding efficiency between the terminals and the insert.

[0023] 2. In this application, both the vertical linear module and the horizontal linear module belong to the linear module structures commonly used in the prior art. The control center controls the operation of the vertical linear module and the horizontal linear module, which controls the position of the welding head, so as to facilitate the welding head to complete the welding between the insert and the pin. When one of the pins on the terminal is welded, the control center controls the rotary motor to work, so as to make the friction wheel rotate, thereby making the terminal limited by the two friction wheels and one limit wheel rotate until the next pin to be welded moves to the position facing the outlet of the feeding trough and stops, so as to carry out the welding work of the next pin. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 A structural diagram from another perspective after removing the base and robotic arm;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram illustrating the structure of the feeding assembly in an embodiment of the present invention;

[0028] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0029] Figure 6 This is a schematic diagram of the structure of the limiting component used in an embodiment of the present invention;

[0030] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0031] Figure 8 This is a structural schematic diagram of an embodiment of the present invention used to highlight the mounting bracket and the limiting component.

[0032] In the diagram: 1. Base; 11. Robotic arm; 12. Guide rack; 2. Cover; 21. Drive unit; 22. Heat dissipation notch; 3. Platform; 31. Placement opening; 4. Track assembly; 41. Fixing rod; 42. Arc-shaped track; 5. Terminal block; 51. Insert; 511. Groove; 52. Pin; 53. End cap; 6. Clamping mechanism; 61. Contact assembly; 611. Friction wheel; 612. Rotating motor; 62. Elastic clamping assembly; 621. Rotating shaft; 622. Swing rod; 6221. Mounting notch; 623. Limiting wheel; 624. Torsion spring; 7. Welding assembly; 71. Vertical linear module; 72. Horizontal linear module; 73. Welding head; 8. Pushing assembly; 81. Bracket; 82. Cylinder; 83. 9. Push plate; 9. Feeding mechanism; 91. Feeding assembly; 911. Mounting frame; 912. Feeding rack; 9121. Feeding port; 9122. Feeding trough; 9123. Upper hole; 9124. Lower hole; 913. Blowing nozzle; 92. Limiting assembly; 921. Upper L-shaped plate; 922. Upper sliding rod; 923. Upper limit plate; 924. Connecting plate; 925. Upper spring; 926. Upper right-angled trapezoidal block; 927. Lower L-shaped plate; 928. Lower sliding rod; 929. Lower limit plate; 930. Lower spring; 9301. Lower right-angled trapezoidal block; 93. Pressing assembly; 931. Electric push rod; 932. Mounting block; 9321. Mounting groove; 933. V-shaped elastic sheet; 934. Movable block; 9341. Abutting slope. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] like Figure 1-8As shown in the figure, this application discloses an automatic welding production line for terminals with connecting inserts, including a base 1, a housing 2 fixed to the top of the base 1, a platform 3 rotatably mounted on the top of the housing 2, and a driving component 21 disposed inside the housing 2 and driving the platform 3 to rotate. A track assembly 4 is provided on the base 1, and multiple placement openings 31 for placing the terminals 5 to be welded are provided on the edge of the platform 3. A robotic arm 11 for gripping the terminals 5 to be welded to the placement openings 31 is provided on the top of the base 1. The platform 3 is equipped with... The clamping mechanism 6 includes an abutment component 61 disposed on one side of the placement port 31 and an elastic clamping component 62 that closes only under the guidance of the track component 4 and cooperates with the abutment component 61 to clamp the wire terminal 5 to be welded. The base 1 is provided with a feeding mechanism 9 for conveying and providing inserts 51 one by one and a welding component 7 for welding inserts 51 to the pins 52 of the wire terminal 5 to be welded. The platform 3 is provided with a pushing component 8 for pushing the wire terminal 5 that has been welded and left the track component 4 out of the placement port 31.

[0035] The robotic arm 11 can grip the wire terminal 5 to be welded and place it at the placement port 31. The drive component 21 drives the platform 3 to rotate, which enables the wire terminal 5 to be welded to rotate synchronously. The elastic clamping component 62 gradually closes under the guidance of the track component 4 and cooperates with the contact component 61 to clamp the wire terminal 5 to be welded. When the wire terminal 5 to be welded rotates with the platform 3 to the bottom of the welding component 7, the feeding mechanism 9 provides a insert 51 to the top of the wire terminal 5 to be welded. The welding component 7 then completes the welding work between the wire terminal 5 to be welded and the insert 51. When the platform 3 drives the welded wire terminal 5 to disengage from the track component 4, the pushing component 8 pushes the welded wire terminal 5 off the platform 3 to complete the unloading. The entire process is completed by the control center of the automatic welding production line for the wire terminal 5, which controls the corresponding components to improve the welding efficiency between the wire terminal 5 and the insert 51.

[0036] The contact assembly 61 includes two friction wheels 611 disposed on the top of the platform 3, both located on the side of the placement opening 31 near the axis of the platform 3. The elastic clamping assembly 62 includes a rotating shaft 621 rotatably mounted on the bottom of the platform 3, a swing rod 622 fixedly sleeved on the rotating shaft 621, and a limiting wheel 623 rotatably mounted on the top of the swing rod 622 away from the rotating shaft 621. A mounting notch 62 is provided at the intersection between the top of the swing rod 622 and the end of the swing rod 622 near the axis of the platform 3. 21. The elastic clamping assembly 62 also includes a torsion spring 624 sleeved on the rotating shaft 621. One end of the torsion spring 624 is fixed to the bottom of the platform 3, and the other end of the torsion spring 624 is fixed to the inner bottom wall of the mounting notch 6221. The swing rod 622 is kept away from the placement opening 31 under the torque of the torsion spring 624. When the end of the swing rod 622 away from the rotating shaft 621 rotates with the platform 3 to the track assembly 4, it is acted upon by the track assembly 4 and causes the limiting wheel 623 to cooperate with the two friction wheels 611 to clamp the end cap 53 of the terminal 5.

[0037] The track assembly 4 includes a fixing rod 41 fixed to the top of the platform 3 and an arc-shaped track 42 fixed to the upper end of the fixing rod 41 and coaxially arranged with the platform 3. The end of the arc-shaped track 42 near the robot arm 11 is bent toward the side away from the axis of the platform 3, and the length of the arc-shaped track 42 is greater than the arc length between two adjacent placement openings 31.

[0038] After the robotic arm 11 picks up the wire terminal 5 to be welded and places it at the placement port 31, the drive unit 21 controls the control panel 3 to rotate, causing the wire terminal 5 to be welded to rotate. The swing rod 622 is kept away from the placement port 31 under the torque of the torsion spring 624. The end of the swing rod 622 away from the rotation axis 621 abuts against the inner side of the arc-shaped track 42 and overcomes the torque of the torsion spring 624, so that the limit wheel 623 swings around the rotation axis 621 with the swing rod 622 until the limit wheel 623 cooperates with the two friction wheels 611 to hold the end cap 53 of the terminal 5. When the wire terminal 5 to be welded continues to rotate with the platform 3 to the bottom of the welding assembly 7, the feeding mechanism 9 provides the insert 51, and the welding assembly 7 completes the welding work between the insert 51 and the terminal 5.

[0039] The feeding mechanism 9 includes a feeding assembly 91, which includes a mounting bracket 911 fixed to the base 1, a feeding frame 912 fixed to the mounting bracket 911 and vertically arranged, and a blowing nozzle 913 fixed to and connected to the top of the feeding frame 912. The blowing nozzle 913 is connected to an external high-pressure air supply system (the setting of the blowing nozzle 913 can blow out high-pressure gas when the insert 51 in the feeding frame 912 is slightly jammed, so that the insert 51 falls smoothly to complete the feeding). The feeding frame 912 is far from the base 1. A feeding port 9121 is provided on one side away from the axis of the platform 3. A feeding groove 9122 for the insertion piece 51 to descend is provided in the feeding rack 912. The discharge port of the feeding groove 9122 corresponds to the position of the pin 52 on the terminal 5 away from the axis of the platform 3. The feeding mechanism 9 also includes a limiting component 92 located near the lower end of the feeding rack 912 and blocking the supply of subsequent insertion pieces 51 during the welding of the insertion piece 51, and a pressing component 93 controlling the continued supply of subsequent insertion pieces 51 after the insertion piece 51 is welded.

[0040] The top of the insert 51 extends towards the side closest to the table 3. The limiting assembly 92 includes an upper L-shaped plate 921 fixed to the side of the feed rack 912 away from the table 3, an upper sliding rod 922 that passes through and slides on the vertical section of the upper L-shaped plate 921, an upper limit plate 923 fixed to the end of the upper sliding rod 922 away from the table 3, a connecting plate 924 fixed to the end of the upper sliding rod 922 close to the table 3, an upper spring 925 sleeved on the upper sliding rod 922 and fixed between the connecting plate 924 and the vertical section of the upper L-shaped plate 921, and a connecting plate 924. The upper right-angled trapezoidal block 926 is fixed to the side of the connecting plate 924 near the table plate 3; the lower L-shaped plate 927 is fixed to the side of the feeding rack 912 away from the table plate 3; the lower sliding rod 928 is slidably fitted through the vertical section of the lower L-shaped plate 927; the lower limiting plate 929 is fixed to the end of the lower sliding rod 928 away from the table plate 3; the lower spring 930 is sleeved on the lower sliding rod 928 and fixed between the connecting plate 924 and the vertical section of the lower L-shaped plate 927; and the lower right-angled trapezoidal block 9301 is fixed to the side of the connecting plate 924 near the table plate 3. The upper and lower ends of the connecting plate 924 abut against the bottom of the upper L-shaped plate 921 and the top of the lower L-shaped plate 927, respectively. The end of the sliding rod 928 near the platform 3 is fixed to the side of the feeding rack 912 away from the platform 3. The top of the upper right-angled trapezoidal block 926 near the platform 3 and the top of the lower right-angled trapezoidal block 9301 near the platform 3 are both inclined surfaces. The feeding rack 912 is provided with through-holes for feeding the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301, respectively. The trapezoidal block 9301 passes through the upper hole 9123 and the lower hole 9124. The distance between the bottom of the upper right-angled trapezoidal block 926 and the inclined surface of the lower right-angled trapezoidal block 9301 is greater than the length of the insert 51. The bottom of the insert 51 is provided with a groove 511 that corresponds to both the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301. The thickness of the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301 is equal and less than the width of the groove 511.

[0041] The feed trough 9122 has a T-shaped cross-section, and its opening faces the side closest to the axis of the platform 3. The pressing assembly 93 includes an electric push rod 931 fixed to the top of the mounting bracket 911. The lower end of the push rod 931 passes through the top of the mounting bracket 911 and is slidably engaged. The pressing assembly 93 also includes a mounting block 932 fixed to the lower end of the push rod 931. The side wall of the mounting block 932 is provided with a mounting groove 932 at a position corresponding to the opening of the feed trough 9122. 1. The pressing assembly 93 also includes a V-shaped elastic sheet 933 fixed to the inner wall of the mounting groove 9321 near the platform 3 and a movable block 934 fixed to the side of the V-shaped elastic sheet 933 away from the platform 3. The two sides of the movable block 934 abut against the inner walls of the two sides of the mounting groove 9321 respectively. The side of the movable block 934 away from the platform 3 extends into the opening of the feeding groove 9122. An abutting slope 9341 is provided at the intersection of the top of the movable block 934 and the side of the movable block 934 away from the platform 3.

[0042] The upper right-angled trapezoidal block 926 passes through the upper hole 9123 under the action of the upper spring 925, and the lower right-angled trapezoidal block 9301 passes through the lower hole 9124 under the action of the lower spring 930. The distance between the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301 determines that only one insert 51 is in the section waiting to be welded at any given time (i.e., the position corresponding to the limit component 92). After the preceding insert 51 is soldered, when the subsequent insert 51 needs to be lowered onto the unsoldered pin 52, the control center controls the electric push rod 931 to raise the mounting block 932. When the abutting inclined surface 9341 touches the top of the insert 51 located between the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301, it moves the insert 51 upward a short distance. When the top of the insert 51 abuts against the bottom of the upper right-angled trapezoidal block 926, the abutting inclined surface 9341 touches the top of the insert 51, causing the movable block 934 to gradually retract into the mounting groove 9321. The V-shaped elastic sheet 933 is gradually compressed, and with the mounting block... As 932 and movable block 934 continue to rise until movable block 934 is higher than upper right-angled trapezoidal block 926, movable block 934 resets under the elastic force of V-shaped elastic sheet 933. At this time, the control center controls electric push rod 931 to drive mounting block 932 down. The bottom of movable block 934 abuts against the top of insert 51 and pushes insert 51 down. The groove 511 of insert 51 acts on the inclined surface of lower right-angled trapezoidal block 9301 and compresses lower spring 930 until insert 51 loses the action of lower right-angled trapezoidal block 9301 and falls onto pin 52 below it. At this time, the control center controls welding assembly 7 to perform welding work. During the above process, the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301 act synchronously. When the upper right-angled trapezoidal block 926 retracts into the upper hole 9123 (the insert 51 is driven by the pressure at the bottom of the movable block 934 to cause the lower right-angled trapezoidal block 9301 to retract into the lower hole 9124, and under the action of the connecting plate 924, the upper right-angled trapezoidal block 926 retracts synchronously into the upper hole 9123), at this time, the upper insert 51 smoothly enters between the upper right-angled trapezoidal block 926 and the lower right-angled trapezoidal block 9301. After the preceding insert 51 completely disengages from the lower right-angled trapezoidal block 9301, the lower right-angled trapezoidal block 9301 and the upper right-angled trapezoidal block 926 quickly return to their original positions under the elastic force of the upper spring 925 and the lower spring 930, preventing the insert 51 between them and subsequent inserts 51 from interfering with the welding work.

[0043] The welding assembly 7 includes a vertical linear module 71 set on the top of the base 1, a horizontal linear module 72 set on the slide of the vertical linear module 71, and a welding head 73 installed on the slide of the horizontal linear module 72 and corresponding to the position of the insert 51 falling onto the pin 52. The friction wheel 611 is rotatably mounted on the platform 3. A self-rotating motor 612 is fixed at the bottom of the platform 3. The output end of the self-rotating motor 612 passes through the platform 3 and is fixed to the central axis of the friction wheel 611. The number of self-rotating motors 612 is equal to the number of friction wheels 611 and their positions correspond one-to-one. The driving component 21 is a rotary motor fixed on the inner top wall of the cover 2. The output end of the rotary motor passes through the cover 2 and is fixed to the central axis of the platform 3. The side wall of the cover 2 is provided with a heat dissipation notch 22.

[0044] Both the vertical linear module 71 and the horizontal linear module 72 are commonly used linear module structures in the prior art. The control center controls the operation of the vertical linear module 71 and the horizontal linear module 72, thereby controlling the position of the welding head 73. This facilitates the welding head 73 in completing the welding between the insert 51 and the pin 52. After one of the pins 52 on the terminal 5 is welded, the control center controls the rotary motor to operate, causing the friction wheel 611 to rotate. This causes the terminal 5, which is limited by the two friction wheels 611 and one limit wheel 623, to rotate until the next pin 52 to be welded moves to the position facing the outlet of the feeding trough 9122, at which point the welding work on the next pin 52 can begin. After the control center controls the rotary motor to operate, it controls the control plate 3 to rotate, thereby causing the plate 3 to drive the terminal 5 to rotate, gradually completing the clamping, welding, and unloading actions.

[0045] The pushing assembly 8 includes a bracket 81 fixed to the base 1, a cylinder 82 fixed to the bracket 81, and a push plate 83 fixed to the piston rod end of the cylinder 82. The bottom of the push plate 83 is higher than the top of the friction wheel 611 and can push the terminal 5, which has disengaged from the arc-shaped track 42, away from the placement port 31. When the welded terminal 5 moves to the position corresponding to the push plate 83 (the placement port 31 corresponding to the terminal 5 is separated from the arc-shaped track 42), the control center controls the cylinder 82 to run, causing the push plate 83 to push the terminal 5, so that the terminal 5 disengages from the platform 3 to complete the unloading.

[0046] A guide frame 12 is fixed on the top of the base 1, located on one side of the platform 3, and the position of the guide frame 12 corresponds to the position of the push plate 83. The guide frame 12 provides good support for the terminal block 5. The terminal block 5 slides down the guide frame 12 to the stacking area, reducing the probability of the terminal block 5 falling directly and causing damage to the pin 52.

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic welding production line for terminal blocks with connecting inserts, characterized in that: The system includes a base (1), a housing (2) fixed to the top of the base (1), a platform (3) rotatably mounted on the top of the housing (2), and a drive unit (21) disposed inside the housing (2) and driving the platform (3) to rotate. A track assembly (4) is provided on the base (1). Multiple placement openings (31) for placing wire terminals (5) to be soldered are provided on the edge of the platform (3). A robotic arm (11) for clamping the wire terminals (5) to be soldered to the placement openings (31) is provided on the top of the base (1). A clamping mechanism (6) is provided on the platform (3). The clamping mechanism (6) includes a... The base (1) is provided with a feeding mechanism (9) for conveying and providing inserts (51) one by one, and a welding assembly (7) for welding inserts (51) to the pins (52) of the wire terminal (5) to be welded. The base (1) is provided with a feeding mechanism (9) for conveying and providing inserts (51) one by one, and a welding assembly (7) for welding inserts (51) to the pins (52) of the wire terminal (5) to be welded. The platform (3) is provided with a pushing assembly (8) for pushing the wire terminal (5) that has been welded and left the track assembly (4) out of the placement port (31). The contact assembly (61) includes two friction wheels (611) disposed on the top of the platform (3), both located on the side of the placement opening (31) near the axis of the platform (3). The elastic clamping assembly (62) includes a rotating shaft (621) rotatably mounted on the bottom of the platform (3), a swing rod (622) fixedly sleeved on the rotating shaft (621), and a limiting wheel (623) rotatably mounted on the top of the swing rod (622) away from the rotating shaft (621). A mounting notch (6221) is provided at the intersection between the top of the swing rod (622) and the end of the swing rod (622) near the axis of the platform (3). The elastic clamping assembly (62) also includes a torsion spring (624) sleeved on the rotating shaft (621). One end of the torsion spring (624) is fixed to the bottom of the platform (3), and the other end of the torsion spring (624) is fixed to the inner bottom wall of the mounting notch (6221). The swing rod (622) is kept away from the placement opening (31) under the torque of the torsion spring (624). When the end of the swing rod (622) away from the rotating shaft (621) rotates with the platform (3) to the track assembly (4), it is acted upon by the track assembly (4) and causes the limiting wheel (623) to cooperate with the two friction wheels (611) to clamp the end cap (53) of the terminal (5). The track assembly (4) includes a fixed rod (41) fixed to the top of the platform (3) and an arc-shaped track (42) fixed to the upper end of the fixed rod (41) and coaxially arranged with the platform (3). The end of the arc-shaped track (42) near the robot (11) is bent toward the side away from the axis of the platform (3). The feeding mechanism (9) includes a feeding assembly (91), which includes a mounting bracket (911) fixed on the base (1), a feeding rack (912) fixed on the mounting bracket (911) and vertically arranged, and a blowing nozzle (913) fixed to and connected to the top of the feeding rack (912). The blowing nozzle (913) is connected to an external high-pressure air supply system. The feeding rack (912) has a feeding port (9121) on the side away from the axis of the platform (3). The feeding rack (912) is equipped with a feeding device. The feeding trough (9122) is provided for the insertion piece (51) to descend. The outlet of the feeding trough (9122) corresponds to the position of the pin (52) on the terminal block (5) away from the axis of the platform (3). The feeding mechanism (9) also includes a limiting component (92) located near the lower end of the feeding rack (912) and blocking the supply of subsequent insertion pieces (51) during the welding of the insertion piece (51), and a pressing component (93) controlling the continued supply of subsequent insertion pieces (51) after the insertion piece (51) is welded.

2. The automatic welding production line for terminal blocks with connecting inserts according to claim 1, characterized in that: The length of the arc-shaped track (42) is greater than the arc length between two adjacent placement openings (31).

3. The automatic welding production line for terminal blocks with connecting inserts according to claim 1, characterized in that: The top of the insert (51) extends toward the side closest to the table (3). The limiting assembly (92) includes an upper L-shaped plate (921) fixed to the side of the feed rack (912) away from the table (3), an upper slide rod (922) that is slidably fitted through the vertical section of the upper L-shaped plate (921), an upper limit plate (923) fixed to the end of the upper slide rod (922) away from the table (3), a connecting plate (924) fixed to the end of the upper slide rod (922) close to the table (3), an upper spring (925) sleeved on the upper slide rod (922) and fixed between the connecting plate (924) and the vertical section of the upper L-shaped plate (921), and a connecting plate (925). The upper right-angled trapezoidal block (926) is fixed on the side of the connecting plate (924) near the table plate (3), the lower L-shaped plate (927) is fixed on the side of the feeding rack (912) away from the table plate (3), the lower sliding rod (928) is slidably fitted on the vertical section of the lower L-shaped plate (927), the lower limiting plate (929) is fixed to the end of the lower sliding rod (928) away from the table plate (3), the lower spring (930) is sleeved on the lower sliding rod (928) and fixed between the connecting plate (924) and the vertical section of the lower L-shaped plate (927), and the lower right-angled trapezoidal block (9301) is fixed to the side of the connecting plate (924) near the table plate (3); The upper and lower ends of the connecting plate (924) abut against the bottom of the upper L-shaped plate (921) and the top of the lower L-shaped plate (927) respectively. The end of the sliding rod (928) near the table (3) is fixed to the side of the feeding rack (912) away from the table (3). The top of the upper right-angled trapezoidal block (926) near the table (3) and the top of the lower right-angled trapezoidal block (9301) near the table (3) are both inclined surfaces. The feeding rack (912) is provided with feeding rods for the upper right-angled trapezoidal block (926) and the lower right-angled trapezoidal block (9301) respectively. The trapezoidal block (9301) passes through the upper hole (9123) and the lower hole (9124). The distance between the bottom of the upper right-angled trapezoidal block (926) and the inclined surface of the lower right-angled trapezoidal block (9301) is greater than the length of the insert (51). The bottom of the insert (51) is provided with a groove (511) that corresponds to both the upper right-angled trapezoidal block (926) and the lower right-angled trapezoidal block (9301). The thickness of the upper right-angled trapezoidal block (926) and the lower right-angled trapezoidal block (9301) is equal and less than the width of the groove (511).

4. The automatic welding production line for terminal blocks with connecting inserts according to claim 3, characterized in that: The feed trough (9122) has a T-shaped cross-section, and the opening of the feed trough (9122) faces the side closest to the axis of the platform (3). The pressing assembly (93) includes an electric push rod (931) fixed to the top of the mounting bracket (911). The lower end of the push rod of the electric push rod (931) passes through the top of the mounting bracket (911) and is slidably engaged. The pressing assembly (93) also includes a mounting block (932) fixed to the lower end of the push rod of the electric push rod (931). The side wall of the mounting block (932) is provided with a mounting groove (9321) at a position corresponding to the opening of the feed trough (9122). The pressing assembly (93) also includes a V-shaped elastic sheet (933) fixed to the inner wall of the mounting groove (9321) near the platform (3) and a movable block (934) fixed to the side of the V-shaped elastic sheet (933) away from the platform (3). The two sides of the movable block (934) abut against the inner walls of the two sides of the mounting groove (9321), and the side of the movable block (934) away from the platform (3) extends into the opening of the feeding groove (9122). An abutting slope (9341) is provided at the intersection of the top of the movable block (934) and the side of the movable block (934) away from the platform (3).

5. An automatic welding production line for terminal blocks with connecting inserts according to claim 4, characterized in that: The welding assembly (7) includes a vertical linear module (71) set on the top of the base (1), a horizontal linear module (72) set on the slide of the vertical linear module (71), and a welding head (73) installed on the slide of the horizontal linear module (72) and corresponding to the position of the insert (51) falling onto the pin (52). The friction wheel (611) is rotatably mounted on the platform (3). A self-rotating motor (612) is fixed at the bottom of the platform (3). The output end of the self-rotating motor (612) passes through the platform (3) and is fixed to the central axis of the friction wheel (611). The number of self-rotating motors (612) is equal to the number of friction wheels (611) and their positions correspond one-to-one. The driving component (21) is a rotary motor fixed on the inner top wall of the cover (2). The output end of the rotary motor passes through the cover (2) and is fixed to the central axis of the platform (3). The side wall of the cover (2) is provided with a heat dissipation notch (22).

6. The automatic welding production line for terminal blocks with connecting inserts according to claim 4, characterized in that: The pusher assembly (8) includes a bracket (81) fixed on the base (1), a cylinder (82) fixed on the bracket (81), and a pusher plate (83) fixed to the piston rod end of the cylinder (82). The bottom of the pusher plate (83) is higher than the top of the friction wheel (611) and can push the terminal (5) that is disengaged from the arc-shaped track (42) away from the placement port (31).

7. The automatic welding production line for terminal blocks with connecting inserts according to claim 4, characterized in that: The top of the base (1) is fixed with a guide frame (12) located on one side of the platform (3), and the position of the guide frame (12) corresponds to the position of the push plate (83).

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