An automatic arc-drawing electric transmission welding mechanism

Abstract

The utility model discloses an automatic arc-drawing electric transmission welding mechanism, which relates to the technical field of welding equipment, including a fixture fixing frame, a welding gun, a base plate, a product positioning block, a servo electric cylinder, a rotary clamping cylinder and a clamping arm. In the utility model, the welding gun moves within the travel range of the servo electric cylinder, and the theoretical position of the welding gun under the working state is limited by the limit block, so as to fix the welding gun in the ideal posture of arc-drawing welding, and the servo electric cylinder and its mechanical structure are used to replace the manual gun holding action, and the whole welding process eliminates human operation; the rotary clamping cylinder drives the clamping arm to rotate and shrink at the same time, and the clamping arm rotates from the initial position to the position aligned with the product positioning block, and at the same time, the clamping arm clamps and clamps the product on the product positioning block, and starts the servo electric cylinder, which drives the welding gun to travel to the predetermined position, and the welding gun starts welding. After the welding is completed, the servo electric cylinder and the rotary clamping cylinder are adjusted to reset.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to an automatic arc-drawing electric transmission welding mechanism. Background Art

[0002] The drawn arc stud welding machine is an advanced type of electric welding machine. Compared with the energy storage stud welding machine, the drawn arc stud welding machine does not have a capacitor charging process. The entire welding process is completed by discharging the welding power supply and controlling the discharge time with a thyristor. The discharge time is 5-500 milliseconds.

[0003] The patent (CN220498027U) discloses a welding device, which belongs to the technical field of stud welding equipment, and specifically relates to a stud welding device, comprising: a machine base, installed in a working area; a rotatable coaxial shaft, fixedly installed on the machine base along the length direction; a positioning slider seat, fixedly installed on the machine base; a support seat, sleeved on the rotatable coaxial shaft; a support rod, fixedly installed on the support seat; a slide seat, slidably installed in a slide groove of the support seat, and the end portion is connected to the support rod by a spring; a fixed block, fixedly installed on the bottom of the slide seat; a welding gun, fixedly installed on the fixed block; a stud chuck, installed on the welding gun and passing through the fixed block; the utility model adopts vertical welding, which can achieve high-precision welding, and can control the welding speed by itself, provide welding accuracy, and has a wider range of applications.

[0004] In the welding device of the above patent, the welding gun is adjusted by the staff operating the stroke control lever to press and rotate it, and then the welding gun is raised and lowered. The operation needs to be pressed all the time during the welding process, and the control lever can be released only after the welding is completed. During this process, the staff needs to press the stroke control lever all the time to maintain the same angle. The operation of the staff may easily lead to inconsistency in the welding gun angle and the height of the gun head from the workpiece, thereby causing the problem of unstable welding strength. Utility Model Content

[0005] The utility model aims to provide an automatic arc-drawing electric transmission welding mechanism to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic arc-drawing electric transmission welding mechanism, comprising a clamp fixing frame and a welding gun, a base plate is provided on one side of the clamp fixing frame, a product positioning block is provided on one side of the outer wall of the base plate, the welding gun is movably arranged on the outside of the product positioning block, a servo electric cylinder is provided on the outer wall of the base plate, the output end of the servo electric cylinder is fixedly connected to the outer wall of the welding gun, a rotary clamping cylinder is provided on the outer wall of the base plate on one side of the product positioning block, and a clamping arm is provided at the output end of the rotary clamping cylinder.

[0007] Furthermore, a connecting frame is provided at the output end of the servo electric cylinder, and the connecting frame is fixedly connected to the welding gun.

[0008] Furthermore, a limit block is provided on the outer wall of the substrate between the product positioning block and the servo electric cylinder.

[0009] Furthermore, a linear guide rail is provided on the outer wall of the base plate, a slider is slidably matched on the outer wall of the linear guide rail, and the slider is fixedly connected to the connecting frame.

[0010] Furthermore, a through hole matching the servo electric cylinder is formed on the outer wall of the base plate, and a mounting plate matching the linear guide rail is formed on the outer wall of the base plate.

[0011] Furthermore, the clamping arm comprises a support bar, an outer wall of the support bar is provided with a clamping bar, and an end of the clamping bar away from the support bar is provided with a clamping claw.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The utility model provides a fixture fixing frame, a welding gun, a base plate, a product positioning block, a servo electric cylinder, a rotary clamping cylinder and a clamping arm. During operation, the welding gun moves within the stroke range of the servo electric cylinder, and the theoretical position of the welding gun in the working state is limited by the limit block to achieve the ideal posture of arc welding. The welding gun is fixed, and the servo electric cylinder and its mechanical structure are used to replace the manual gun holding action, and the mechanism positions the product to be welded, and the entire welding process eliminates human operation; the welding gun is manually installed with the welding stud and the product to be welded at the initial position, and the rotary clamping cylinder is started after the installation is in place. The rotary clamping cylinder drives the clamping arm to rotate and shrink at the same time, and the clamping arm rotates from the initial position to the position aligned with the product positioning block. At the same time, the clamping arm clamps and clamps the product on the product positioning block, and the servo electric cylinder is started. The servo electric cylinder drives the welding gun to travel to the predetermined position, and the welding gun starts welding. After welding is completed, the servo electric cylinder is adjusted to reset, and the welding gun is driven back to the initial position. At the same time, the rotary clamping cylinder is adjusted to reset, and the clamping arm releases the product.

[0014] 2. The gas source in the utility model is compressed air, and the rotary clamping cylinder is made to reciprocate through the opening and closing of the gas-controlled valve group and the gas-controlled button switch, and the rotary clamping cylinder drives the clamping arm and the servo electric cylinder drives the welding gun to move to realize the welding process; the welding gun is displaced by the servo electric cylinder, which has higher accuracy and does not require manual operation of the control lever, thereby solving the problem of manual operation of the welding gun being out of place or off-center, thereby ensuring the stability of the welding strength, and the position of the welding gun is fixed during the welding operation, which can effectively ensure the dimensional accuracy of the entire welding process, and the welding strength is fully guaranteed; the welding quality is stable and reliable, reducing the labor intensity of workers and having a higher yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the base plate and welding gun of the utility model;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure from another angle;

[0019] Figure 4 It is a structural schematic diagram of the substrate of the utility model;

[0020] Figure 5 This utility model Figure 4 Schematic diagram of the structure from another angle;

[0021] Figure 6 It is a structural schematic diagram of another state of the clamping arm in the base plate of the utility model;

[0022] Figure 7 This utility model Figure 6 Schematic diagram of the structure from another angle;

[0023] In the figure: 1. fixture fixing frame; 2. welding gun; 3. base plate; 4. product positioning block; 5. servo electric cylinder; 6. rotary clamping cylinder; 7. clamping arm; 8. connecting frame; 9. limit block; 10. linear guide rail; 11. slider; 12. support bar; 13. clamping bar; 14. pressure claw; 15. through hole; 16. mounting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 7The utility model provides a technical solution: an automatic arc-drawing electric transmission welding mechanism, comprising a fixture fixing frame 1 and a welding gun 2, a base plate 3 is provided on one side of the fixture fixing frame 1, a product positioning block 4 is provided on one side of the outer wall of the base plate 3, the welding gun 2 is movably arranged on the outside of the product positioning block 4, a servo electric cylinder 5 is provided on the outer wall of the base plate 3, the output end of the servo electric cylinder 5 is fixedly connected to the outer wall of the welding gun 2, a rotary clamping cylinder 6 is provided on the outer wall of the base plate 3 on one side of the product positioning block 4, a clamping arm 7 is provided on the output end of the rotary clamping cylinder 6; the clamping arm 7 comprises a support bar 12, a clamping bar 13 is provided on the outer wall of the support bar 12, and a pressure claw 14 is provided on the end of the clamping bar 13 away from the support bar 12.

[0026] The output end of the servo electric cylinder 5 is provided with a connecting frame 8, and the connecting frame 8 is fixedly connected to the welding gun 2. The connecting frame 8 is supported between the servo electric cylinder 5 and the welding gun 2, and the servo electric cylinder 5 drives the welding gun 2 to perform telescopic movement through the connecting frame 8; the outer wall of the substrate 3 is provided with a limit block 9 between the product positioning block 4 and the servo electric cylinder 5, and the limit block 9 limits the connecting frame 8 between the product positioning block 4 and the servo electric cylinder 5, which can effectively prevent the connecting frame 8 from moving beyond the limit and causing damage to the welding gun 2 and the product; the outer wall of the substrate 3 is provided with a linear guide rail 10, and the outer wall of the linear guide rail 10 is slidably matched with a slider 11, and the slider 11 is connected to the connecting frame 10 The connecting frame 8 is fixedly connected, and the linear guide 10 and the slider 11 are used in coordination. When the servo electric cylinder 5 drives the connecting frame 8 to perform telescopic movement, the slider 11 performs telescopic movement along with the connecting frame 8, and the linear guide 10 performs sliding guidance on the slider 11, which can effectively enhance the stability of the movement of the slider 11, thereby improving the stability of the telescopic movement of the welding gun 2; a through hole 15 matching the servo electric cylinder 5 is provided on the outer wall of the base plate 3, and a mounting plate 16 matching the linear guide 10 is provided on the outer wall of the base plate 3, and the through hole 15 provides a channel for the telescopic movement of the servo electric cylinder 5, thereby ensuring that the servo electric cylinder 5 can drive the connecting frame 8 to perform telescopic movement.

[0027] The working principle of this utility model:

[0028] Refer to the instruction manual Figure 1-Figure 7The utility model is provided with a fixture fixing frame 1, a welding gun 2, a base plate 3, a product positioning block 4, a servo electric cylinder 5, a rotary clamping cylinder 6 and a clamping arm 7. The fixture fixing frame 1 supports the overall equipment, and the base plate 3 supports the product positioning block 4, the servo electric cylinder 5 and the rotary clamping cylinder 6. During operation, the welding gun 2 moves within the travel range of the servo electric cylinder 5. The limit block 9 is used to limit the theoretical position of the welding gun 2 in the working state to achieve the ideal posture of arc welding. The welding gun 2 is fixed, and the servo electric cylinder 5 and its mechanical structure are used to replace the manual gun holding action. The mechanism positions the product to be welded, and the entire welding process eliminates human operation; the welding gun 2 is manually installed with welding studs and the product to be welded at the initial position, and the rotary clamping cylinder 6 is started after installation. The rotating clamping cylinder 6 drives the clamping arm 7 to rotate and contract at the same time, and the clamping arm 7 rotates from the initial position to the position aligned with the product positioning block 4. At the same time, the clamping arm 7 clamps and clamps the product on the product positioning block 4, and starts the servo electric cylinder 5. The servo electric cylinder 5 drives the welding gun 2 to the predetermined position, and the welding gun 2 starts welding. After welding is completed, the servo electric cylinder 5 is adjusted to reset, and the welding gun 2 is driven back to the initial position. At the same time, the rotating clamping cylinder 6 is adjusted to reset, and the clamping arm 7 releases the product; the clamping arm 7 is composed of a support bar 12, a clamping bar 13 and a pressure claw 14. The shape of the clamping arm 7 can be designed to ensure that the clamping arm 7 has sufficient rotation and telescopic space to avoid collision or wear between the clamping arm 7 and the welding gun 2;

[0029] The gas source of this mechanism is compressed air, and the rotary clamping cylinder 6 is made to reciprocate through the opening and closing of the gas-controlled valve group and the gas-controlled button switch, and the rotary clamping cylinder 6 drives the clamping arm 7 and the servo electric cylinder 5 to drive the welding gun to move to realize the welding process; the welding gun 2 is displaced and adjusted by the servo electric cylinder 5, which has higher accuracy and does not require manual operation of the control lever, thereby solving the problem of manual operation of the welding gun being out of place or off-center, thereby ensuring the stability of the welding strength, and the position of the welding gun 2 is fixed during the welding operation, which can effectively ensure the dimensional accuracy of the entire welding process, and the welding strength is fully guaranteed; the welding quality is stable and reliable, reducing the labor intensity of workers and having a higher yield rate; the utility model can be effectively applied to the field of automobile manufacturing, and is applicable to small and medium-sized automobile parts white body welding enterprises, and can also be promoted to other automobile stud welding industries to produce wide benefits.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic arc-drawing electric transmission welding mechanism, comprising a fixture fixing frame (1) and a welding gun (2), characterized in that: A base plate (3) is provided on one side of the clamp fixing frame (1), a product positioning block (4) is provided on one side of the outer wall of the base plate (3), the welding gun (2) is movably arranged on the outside of the product positioning block (4), a servo electric cylinder (5) is provided on the outer wall of the base plate (3), an output end of the servo electric cylinder (5) is fixedly connected to the outer wall of the welding gun (2), a rotary clamping cylinder (6) is provided on the outer wall of the base plate (3) on one side of the product positioning block (4), and a clamping arm (7) is provided at the output end of the rotary clamping cylinder (6).

2. The automatic drawn arc electric transmission welding mechanism according to claim 1, characterized in that: The output end of the servo electric cylinder (5) is provided with a connecting frame (8), and the connecting frame (8) is fixedly connected to the welding gun (2).

3. The automatic arc-drawn electric transmission welding mechanism according to claim 2, characterized in that: A limit block (9) is provided on the outer wall of the base plate (3) between the product positioning block (4) and the servo electric cylinder (5).

4. The automatic arc-drawn electric transmission welding mechanism according to claim 2, characterized in that: The outer wall of the base plate (3) is provided with a linear guide rail (10), the outer wall of the linear guide rail (10) is slidably matched with a slider (11), and the slider (11) is fixedly connected to the connecting frame (8).

5. The automatic arc-drawn electric transmission welding mechanism according to claim 4, characterized in that: The outer wall of the base plate (3) is provided with a through hole (15) matching the servo electric cylinder (5), and the outer wall of the base plate (3) is provided with a mounting plate (16) matching the linear guide rail (10).

6. The automatic drawn arc electric transmission welding mechanism according to claim 1, characterized in that: The clamping arm (7) comprises a support bar (12), the outer wall of the support bar (12) is provided with a clamping bar (13), and the end of the clamping bar (13) away from the support bar (12) is provided with a clamping claw (14).

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