Spot welding robot based on industrial welding machining

Abstract

The spot welding robot based on industrial welding machining comprises an outer frame fixing assembly, a machined part conveying assembly and a welding assembly, the outer frame fixing assembly comprises an outer frame, an outer ring frame, a first driving part, an inner ring frame and a limiting clamping rod, the outer ring frame is arranged in the outer frame, the first driving part is arranged on the outer frame, and the inner ring frame is arranged on the outer frame; the inner ring frame is arranged at the output end of the driving part, the multiple sets of limiting clamping rods are arranged on the inner ring frame in an annular array mode, the machined part conveying assembly is arranged in the outer frame fixing assembly and comprises a driving mechanism and a positioning mechanism, the driving mechanism is movably arranged in the outer frame fixing assembly, and the positioning mechanism is arranged on the outer frame fixing assembly. The positioning mechanism is movably arranged on the driving mechanism, and the welding assembly is arranged in the outer frame fixing assembly. Therefore, the ejector rod is linked with the variable-diameter annular plate, conveying of the machined part and the to-be-machined part is completed, the to-be-machined part is reinforced in cooperation with the telescopic mechanism, and the stability of the machined part is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of welding processing robots, and particularly relates to a spot welding robot based on industrial welding processing. Background Art

[0002] In the field of industrial welding, spot welding robots are widely used in the automatic welding of metal parts. Traditional spot welding equipment usually uses a fixed working station and a linear conveying mechanism to complete the positioning and welding of workpieces. However, there are the following technical bottlenecks in continuous production scenarios:

[0003] Low multi-station collaboration efficiency: Existing equipment needs to pause the conveying system during the welding process to complete positioning and clamping actions, resulting in the inability to parallelize the loading / unloading and welding processes. Its welding station is separated from the loading / unloading station, and workpieces need to be positioned one by one, and mostly manual loading / unloading is used.

[0004] Insufficient dynamic positioning accuracy: Workpieces are easily affected by mechanical vibration or inertial offset during movement and it is difficult to accurately align with the annular welding tooling. Especially when the workpiece needs to be embedded in the inner diameter of the ring frame, the conventional positioning mechanism can only achieve position compensation in a single-axis direction and cannot synchronously adjust the height and rotation angle of the workpiece, resulting in welding position deviation.

[0005] Single welding pressure control: The traditional welding head lacks an adaptive buffer structure. When the surface of the workpiece is uneven or there is an assembly error, the welding pressure distribution is uneven, easily resulting in false welding or solder joint cracking. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0007] To this end, the object of the present invention is to provide a spot welding robot based on industrial welding processing. By using the upper and lower double notches of the ring frame to respectively receive workpieces, the welding station and the loading / unloading station can operate synchronously. The ejector rod is linked with the variable-diameter ring plate to complete the conveying of the processed and unprocessed workpieces, and cooperate with the telescopic mechanism to reinforce the unprocessed workpiece to ensure the stability of the workpiece.

[0008] To achieve the above object, the present invention provides a spot welding robot based on industrial welding processing, including an outer frame fixing component, a workpiece conveying component, and a welding component. Among them, the outer frame fixing component includes an outer frame, an outer ring frame, a driving component I, an inner ring frame, and a limiting clamping rod. Among them, the outer ring frame is arranged inside the outer frame; the driving component I is arranged on the outer frame; the inner ring frame is arranged at the output end of the driving component I, and the inner ring frame is rotatably arranged inside the outer ring frame; the limiting clamping rods are in multiple groups, and the multiple groups of limiting clamping rods are arranged on the inner ring frame in a circular array; the workpiece conveying component is arranged inside the outer frame fixing component, and the workpiece conveying component is used to drive the workpiece to be processed and the processed workpiece for conveying; the workpiece conveying component includes a driving mechanism and a positioning mechanism. Among them, the driving mechanism is movably arranged inside the outer frame fixing component; the positioning mechanism is movably arranged on the driving mechanism; the welding component is arranged inside the outer frame fixing component, and the welding component is used to weld the workpiece.

[0009] For the spot welding robot based on industrial welding processing of the present invention, the upper and lower double notches of the ring frame are respectively used to receive the workpiece, so that the welding station and the loading and unloading stations operate synchronously. The ejector rod is linked with the variable-diameter ring plate to complete the conveying of the processed workpiece and the workpiece to be processed, and cooperate with the telescopic mechanism to reinforce the workpiece to be processed, ensuring the stability of the workpiece.

[0010] In addition, the spot welding robot based on industrial welding processing proposed according to the above application may also have the following additional technical features:

[0011] Specifically, the outer ring frame includes a ring frame, a notch, and a variable-diameter ring plate. Among them, the ring frame is arranged inside the outer frame; the notches are in two groups, and the two groups of notches are respectively opened on the ring frame; the variable-diameter ring plate is arranged on the ring frame.

[0012] Specifically, the driving mechanism includes a conveyor belt, an opening groove, and a positioning frame. Among them, the conveyor belt is movably arranged inside the outer frame; the opening grooves are in multiple groups, and the multiple groups of opening grooves are linearly arrayed and opened on the conveyor belt; the positioning frame is arranged inside the opening groove, and the positioning mechanism is arranged on the positioning frame.

[0013] Specifically, the positioning mechanism includes an outer cover housing, a buffer component, an inner movable plate, an ejector rod, and a positioning substrate. Among them, the outer cover housing is arranged on the positioning frame; one end of the buffer component is arranged inside the outer cover housing; the inner movable plate is arranged at the other end of the buffer component; the ejector rod is arranged on the inner movable plate; the positioning substrate is arranged on the inner movable plate.

[0014] Specifically, the welding assembly includes a driving component, a fixing plate, a telescopic mechanism, a welding component, and a control box. Among them, the driving component is arranged on the outer frame; the fixing plate is arranged at the output end of the driving component; the telescopic mechanism is arranged on the fixing plate; the welding component is arranged on the fixing plate; the control box is arranged inside the outer frame.

[0015] Specifically, the telescopic mechanism includes an outer casing, a sliding rod, a reset component, a buffer rod, and a fitting component. Among them, the outer casing is arranged on the fixing plate; the sliding rod is movably arranged inside the outer casing; both ends of the reset component are respectively connected to the sliding rod and the outer casing.

[0016] Specifically, the fitting component includes a hollow sleeve, an elastic component, and a fitting block. Among them, the hollow sleeve is arranged on the buffer rod; the fitting block is movably arranged inside the hollow sleeve; both ends of the elastic component are respectively connected to the hollow sleeve and the fitting block.

[0017] Specifically, the outer diameter of the variable-diameter ring plate is smaller than the outer diameter of the ring frame.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0019] The above-mentioned and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a schematic structural diagram of the outer ring frame of the present invention;

[0022] Figure 3 is a schematic structural diagram of the positioning mechanism of the present invention;

[0023] Figure 4 is a schematic structural diagram of the driving mechanism of the present invention;

[0024] Figure 5 is a schematic structural diagram of the telescopic mechanism of the present invention

[0025] Figure 6 is a schematic structural diagram of the fitting component of the present invention.

[0026] As shown in the figure: 10. Outer frame fixing component; 101. Outer frame; 102. Outer ring frame; 1021. Ring frame; 1022. Notch; 1023. Reducing ring plate; 103. Driving component one; 104. Inner ring frame; 105. Limit clamping rod; 20. Workpiece conveying component; 201. Driving mechanism; 2011. Conveyor belt; 2012. Open slot; 2013. Positioning frame; 202. Positioning mechanism; 2021. Outer cover housing; 2022. Buffer component; 2023. Inner movable plate; 2024. Thrust rod; 2025. Positioning base plate; 30. Welding component; 301. Driving component; 302. Fixed plate; 303. Telescopic mechanism; 3031. Outer sleeve; 3032. Slide bar; 3033. Reset component; 3034. Buffer rod; 3035. Contact component; 30351. Hollow sleeve; 30352. Elastic component; 30353. Contact block; 304. Welding component; 305. Control box. Detailed implementation mode

[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and connotation of the appended claims.

[0028] The spot welding robot based on industrial welding processing according to the embodiments of the present invention will be described below with reference to the drawings.

[0029] As Figures 1-6 shown, the spot welding robot based on industrial welding processing according to the embodiments of the present invention includes an outer frame fixing component 10, a workpiece conveying component 20 and a welding component 30.

[0030] Among them, the outer frame fixing component 10 includes an outer frame 101, an outer ring frame 102, a driving component one 103, an inner ring frame 104 and a limit clamping rod 105.

[0031] Among them, the outer ring frame 102 is arranged inside the outer frame 101, the driving component one 103 is arranged on the outer frame 101, the inner ring frame 104 is arranged at the output end of the driving component one 103, and the inner ring frame 104 is rotatably arranged inside the outer ring frame 102. There are multiple groups of limit clamping rods 105, and multiple groups of limit clamping rods 105 are arranged in an annular array on the inner ring frame 104.

[0032] It should be noted that the outer ring frame 102 is fixedly welded to the inner wall of the outer frame 101. The first driving component 103 is a stepping motor. By connecting the control switch and the power supply to operate the first driving component 103, the inner ring frame 104 is driven to rotate, and then the limiting clamping rod 105 is driven to rotate along with the inner ring frame 104. During the rotation process of the limiting clamping rod 105, the workpiece to be welded is driven to rotate and move.

[0033] The workpiece conveying assembly 20 is arranged inside the outer frame fixing assembly 10. The workpiece conveying assembly 20 is used to drive the workpiece to be processed and the processed workpiece for conveying. The workpiece conveying assembly 20 includes a driving mechanism 201 and a positioning mechanism 202.

[0034] Among them, the driving mechanism 201 is movably arranged inside the outer frame fixing assembly 10, the positioning mechanism 202 is movably arranged on the driving mechanism 201, and the welding assembly 30 is arranged inside the outer frame fixing assembly 10. The welding assembly 30 is used to weld the workpiece.

[0035] It should be noted that when the driving mechanism 201 operates, it passes through the outer frame 101. The positioning mechanism 202 is installed on the driving mechanism 201, and the workpiece to be welded is placed on the positioning mechanism 202 and moves along with the driving mechanism 201.

[0036] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the outer ring frame 102 includes a ring frame 1021, a notch 1022, and a stepped ring plate 1023.

[0037] Among them, the ring frame 1021 is arranged inside the outer frame 101. There are two groups of notches 1022, and the two groups of notches 1022 are respectively opened on the ring frame 1021. The stepped ring plate 1023 is arranged on the ring frame 1021.

[0038] It should be noted that notches 1022 are respectively arranged at the upper and lower ends of the ring frame 1021. The notch 1022 below the ring frame 1021 penetrates through the ring frame 1021 and the stepped ring plate 1023, while the notch 1022 above the ring frame 1021 is only opened on the ring frame 1021.

[0039] In an embodiment of the present invention, as Figure 1 and Figure 4 shown, the driving mechanism 201 includes a conveyor belt 2011, an opening groove 2012, and a positioning frame 2013.

[0040] Among them, the conveyor belt 2011 is movably arranged inside the outer frame 101. There are multiple groups of opening grooves 2012, and the multiple groups of opening grooves 2012 are linearly arrayed on the conveyor belt 2011. The positioning frame 2013 is arranged in the opening groove 2012, and the positioning mechanism 202 is arranged on the positioning frame 2013.

[0041] It should be noted that the conveyor belt 2011 is driven by a motor. An opening groove 2012 is formed on the surface of the conveyor belt 2011. The positioning frame 2013 is installed in the opening groove 2012, and the positioning mechanism 202 for holding the workpiece to be welded is installed on the positioning frame 2013, driving its conveyance and passing through the outer ring frame 102.

[0042] In an embodiment of the present invention, as Figure 3 shown, the positioning mechanism 202 includes an outer cover housing 2021, a buffer member 2022, an inner movable plate 2023, a top rod 2024, and a positioning substrate 2025.

[0043] Among them, the outer cover housing 2021 is arranged on the positioning frame 2013. One end of the buffer member 2022 is arranged inside the outer cover housing 2021, and the inner movable plate 2023 is arranged at the other end of the buffer member 2022. The top rod 2024 is arranged on the inner movable plate 2023, and the positioning substrate 2025 is arranged on the inner movable plate 2023.

[0044] It should be noted that the positioning substrate 2025 is integrally formed on the inner movable plate 2023. A groove is provided on the positioning substrate 2025. The workpiece to be welded is placed inside the positioning substrate 2025, and the workpiece to be processed is limited and fixed through the groove. Subsequently, the conveyor belt 2011 drives the workpiece to move. During the movement, the top rod 2024 abuts against the ring frame 1021, then pushes the inner movable plate 2023 to move downward so that the workpiece moves to a position flush with the inner diameter of the ring frame 1021 and is located inside the limit clamping rod 105. Then, the driving component 103 is operated to drive the inner ring frame 104 to rotate.

[0045] In an embodiment of the present invention, as Figure 1 shown, the welding assembly 30 includes a driving component 301, a fixing plate 302, a telescopic mechanism 303, a welding component 304, and a control box 305.

[0046] Among them, the driving component 301 is arranged on the outer frame 101, the fixing plate 302 is arranged at the output end of the driving component 301, the telescopic mechanism 303 is arranged on the fixing plate 302, the welding component 304 is arranged on the fixing plate 302, and the control box 305 is arranged inside the outer frame 101.

[0047] It should be noted that the driving component 301 is a hydraulic cylinder. By connecting the control switch to the power supply to operate the driving component 301, the driving component 301 drives the fixing plate 302 to move, then drives the telescopic mechanism 303 to move downward. The telescopic mechanism 303 moves downward and passes through the notch 1022 above the ring frame 1021, then the telescopic mechanism 303 fixes the workpiece, and subsequently, the welding component 304 spot-welds the workpiece to be processed.

[0048] In one embodiment of the present invention, as Figure 1 and Figure 5 shown, the telescopic mechanism 303 includes an outer casing 3031, a sliding rod 3032, a reset member 3033, a buffer rod 3034, and a mating member 3035.

[0049] Among them, the outer casing 3031 is arranged on the fixed plate 302, the sliding rod 3032 is movably arranged in the outer casing 3031, and both ends of the reset member 3033 are respectively connected to the sliding rod 3032 and the outer casing 3031.

[0050] It should be noted that in this embodiment, a chute is provided on the inner wall of the outer casing 3031, a slider that slides in the chute is provided on the sliding rod 3032, the reset member 3033 is a reset spring, which pushes the sliding rod 3032 to slide in the outer casing 3031, so that the buffer rod 3034 abuts against the limit clamping rod 105. And when the driving member 301 continues to operate, the welding member 304 is driven to move downward, so that the welding member 304 welds the workpiece.

[0051] In one embodiment of the present invention, as Figure 5 and Figure 6 shown, the mating member 3035 includes a hollow sleeve 30351, an elastic member 30352, and a mating block 30353.

[0052] Among them, the hollow sleeve 30351 is arranged on the buffer rod 3034, the mating block 30353 is movably arranged in the hollow sleeve 30351, and both ends of the elastic member 30352 are respectively connected to the hollow sleeve 30351 and the mating block 30353.

[0053] It should be noted that the mating block 30353 moves in the hollow sleeve 30351, the elastic member 30352 is a spring, an inclined chamfer is provided on the bottom wall of the mating block 30353, so when the buffer rod 3034 moves downward, the mating block 30353 abuts against the elastic member 30352, and then the workpiece to be welded is clamped and reinforced through the elastic member 30352.

[0054] In one embodiment of the present invention, as Figure 2 shown, the outer diameter of the variable-diameter ring plate 1023 is smaller than the outer diameter of the ring frame 1021.

[0055] It should be noted that the variable-diameter ring plate 1023 is provided, which cooperates with the ejector rod 2024 to reset the ejector rod 2024 and continue to convey the welded workpiece forward.

[0056] Specifically, the steps for the spot welding robot to weld the workpieces are as follows: Place the workpieces to be welded on the positioning substrate 2025 respectively, place the positioning substrate 2025 on the positioning frame 2013, and then operate the conveyor belt 2011 to drive the positioning substrate 2025 to move. The conveyor belt 2011 drives the positioning substrate 2025 to move into the ring frame 1021, then the workpiece enters the notch 1022. At this time, the ejector rod 2024 abuts against the bottom wall of the ring frame 1021, and the ejector rod 2024 contracts into the outer casing 2021, driving the positioning substrate 2025 to move downward so that the bottom wall of the workpiece to be processed and the inner diameter of the ring frame 1021 are at the same level. At this time, the limit clamping rod 105 drives the workpiece to rotate and fit against the inner wall of the ring frame 1021, and rotates to the position of the upper notch 1022. Then operate the driving component 301. The driving component 301 drives the fixed plate 302 to move downward, then the fixed plate 302 drives the telescopic mechanism 303 to move downward. At this time, the abutting block 30353 abuts against the surface of the workpiece and reinforces it through the elastic member 30352. After the workpiece is reinforced, operate the driving component 301 again to drive the welding component 304 to move downward. At this time, the outer casing 3031 moves downward through the reset component 3033 and will not hinder the downward movement of the welding component 304. Then the welding component 304 moves downward to weld the workpiece to be welded.

[0057] After welding is completed, operate the driving component 301 to drive the welding component 304 and the telescopic mechanism 303 to reset. Then operate the driving component 103 again to drive the limit clamping rod 105 and the workpiece that has been welded to rotate. When welding, the next group of workpieces to be welded move into the lower notch 1022. The welded workpieces rotate and fall onto the positioning substrate 2025. During the subsequent continuous conveying process, the ejector rod 2024 is reset through the stepped diameter ring plate 1023 to convey the workpieces that have been welded.

[0058] In summary, the spot welding robot based on industrial welding processing in the embodiment of the present invention receives workpieces through the upper and lower double notches of the ring frame, enables the welding station and the loading and unloading stations to operate synchronously, the ejector rod and the stepped diameter ring plate are linked to complete the conveying of the processed workpieces and the workpieces to be processed, and cooperate with the telescopic mechanism to reinforce the workpieces to be processed to ensure the stability of the workpieces.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present invention.

Claims

1. A spot welding robot based on industrial welding processing, characterized in that It includes an outer frame fixing component, a workpiece conveying component, and a welding component. Among them, the outer frame fixing component includes an outer frame, an outer ring frame, a driving component 1, an inner ring frame, and a limiting clamping rod. Among them, the outer ring frame is arranged inside the outer frame; the driving component 1 is arranged on the outer frame; the inner ring frame is arranged at the output end of the driving component 1, and the inner ring frame is rotatably arranged inside the outer ring frame; there are multiple groups of the limiting clamping rods, and multiple groups of the limiting clamping rods are arranged on the inner ring frame in a circular array; the workpiece conveying component is arranged inside the outer frame fixing component, and the workpiece conveying component is used to drive the workpiece to be processed and the processed workpiece for conveying; the workpiece conveying component includes a driving mechanism and a positioning mechanism. Among them, the driving mechanism is movably arranged inside the outer frame fixing component; the positioning mechanism is movably arranged on the driving mechanism; the welding component is arranged inside the outer frame fixing component, and the welding component is used to weld the workpiece.

2. The spot welding robot based on industrial welding processing according to claim 1, wherein, the outer ring frame includes a ring frame, a notch, and a variable diameter ring plate. Among them, the ring frame is arranged inside the outer frame; there are two groups of the notches, and two groups of the notches are respectively opened on the ring frame; the variable diameter ring plate is arranged on the ring frame.

3. The spot welding robot based on industrial welding processing according to claim 1, wherein, the driving mechanism includes a conveyor belt, an opening groove, and a positioning frame. Among them, the conveyor belt is movably arranged inside the outer frame; there are multiple groups of the opening grooves, and multiple groups of the opening grooves are linearly arrayed on the conveyor belt; the positioning frame is arranged inside the opening groove, and the positioning mechanism is arranged on the positioning frame.

4. The spot welding robot based on industrial welding processing according to claim 3, wherein, the positioning mechanism includes an outer cover housing, a buffer component, an inner movable plate, a top rod, and a positioning substrate. Among them, the outer cover housing is arranged on the positioning frame; one end of the buffer component is arranged inside the outer cover housing; the inner movable plate is arranged at the other end of the buffer component; the top rod is arranged on the inner movable plate; the positioning substrate is arranged on the inner movable plate.

5. The spot welding robot based on industrial welding processing according to claim 1, characterized in that, the welding component includes a driving component, a fixing plate, a telescopic mechanism, a welding component, and a control box. Among them, the driving component is arranged on the outer frame; the fixing plate is arranged at the output end of the driving component; the telescopic mechanism is arranged on the fixing plate; the welding component is arranged on the fixing plate; the control box is arranged inside the outer frame.

6. The spot welding robot based on industrial welding processing according to claim 5, characterized in that, the telescopic mechanism includes an outer sleeve housing, a sliding rod, a reset component, a buffer rod, and a mating component. Among them, the outer sleeve housing is arranged on the fixing plate; the sliding rod is movably arranged inside the outer sleeve housing; both ends of the reset component are respectively connected to the sliding rod and the outer sleeve housing.

7. The spot welding robot based on industrial welding processing according to claim 6, characterized in that, the mating component includes a hollow sleeve, an elastic component, and a mating block. Among them, the hollow sleeve is arranged on the buffer rod; the mating block is movably arranged inside the hollow sleeve; both ends of the elastic component are respectively connected to the hollow sleeve and the mating block.

8. The spot welding robot based on industrial welding processing according to claim 2, characterized in that the outer diameter of the variable diameter ring plate is smaller than the outer diameter of the ring frame.

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