Multifunctional cantilever laser cutting and welding machine

Abstract

The present application relates to the field of welding equipment, and discloses a multifunctional cantilever laser cutting and welding machine, which comprises a rocker mechanism and a damping assembly in the rocker mechanism, the rocker mechanism is arranged on one side of a main body, the damping assembly is installed at a rotating position in the rocker mechanism, the other end of the rocker mechanism is fixedly provided with a laser module, one side of the laser module is provided with a control assembly, the control assembly is used for controlling the damping assembly, and one side of the control assembly is provided with a handle. The multifunctional cantilever laser cutting and welding machine has a damping assembly in the joint of a rocker mechanism and a linkage control assembly, solves the defect of fixed damping when manual operation, the operator can adjust the damping force in real time, and the precision and efficiency are improved. Pure mechanical friction rings and push-pull wire transmission are adopted to avoid failure of electric control under special working conditions. The damping assembly has modularized inner and outer friction ring modules, is convenient to replace, and the joint resistance can also be adjusted by increasing or decreasing the number of outer friction rings.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically a multi-functional cantilever laser cutting and welding machine. Background Technology

[0002] Patent application CN114378407B includes a wire spool support, a variable damping assembly, and a wire spool shaft. The wire spool support has a shaft hole. The variable damping assembly includes an electromagnetic brake, a connecting shaft, and a damping adjuster. The electromagnetic brake and the damping adjuster are respectively sleeved on the connecting shaft and located on one side of the wire spool support. The output end of the connecting shaft passes through the shaft hole of the wire spool support. Both the electromagnetic brake and the damping adjuster are electrically connected to a welding power source. The electromagnetic brake releases or locks the connecting shaft based on a start / stop signal received from the welding power source. When the electromagnetic brake releases the connecting shaft, the damping adjuster receives a damping control signal related to the wire feeding state output by the welding power source and applies an adjustable damping force to the connecting shaft based on the received damping control signal. The wire spool shaft is located on the other side of the wire spool support, connected to the output end of the connecting shaft, and linked with the connecting shaft. The advantages are as follows: When the welding power supply is off, the electromagnetic brake locks the wire spool shaft, preventing the wire spool from rotating freely and causing the welding wire to scatter. After the welding power supply is started, the electromagnetic brake releases the connecting shaft, and the damping regulator applies an adjustable damping force to the connecting shaft based on the damping control signal output by the welding power supply, which is related to the wire feeding state. This setting allows the wire spool shaft to remain static with high damping to prevent the welding wire from scattering when wire feeding is not in progress or has stopped; while during wire feeding, the wire spool shaft follows the servo welding torch with low damping for stable wire feeding. The damping regulator allows for adjustable damping force applied to the connecting shaft under different wire feeding states within a welding task, thus effectively meeting the working requirements of the wire spool shaft under different wire feeding states; it significantly improves the consistency of welding results while achieving stable wire feeding in the welding equipment, ensuring welding quality.

[0003] In the prior art, including the aforementioned patents, cantilever laser welding and cutting machines are widely used in the cutting and welding of metal sheets due to their large operating space and high flexibility. Their manual operation relies on the operator holding the welding torch handle and moving the multi-jointed cantilever for positioning. To ensure effortless operation and that the cantilever can remain stationary in any position, existing cantilever joints are generally equipped with fixed-damping friction or hydraulic dampers. This damper provides a constant tension force to balance the cantilever's own weight torque and prevent accidental sagging. However, in actual use, the applicant has discovered that this fixed-damping design has significant drawbacks:

[0004] First, it's difficult to balance operational precision and efficiency. Fixed damping values ​​are typically set high for safety, requiring operators to overcome significant static friction during fine-tuning and alignment. This is not only laborious but also prone to overshoot due to excessive force, leading to repeated adjustments that are time-consuming and labor-intensive, impacting welding alignment accuracy and operational efficiency. Second, equipment maintenance costs are high. Friction plates and hydraulic oil in the damper wear and degrade over time, causing a decrease in damping force and resulting in cantilever "nodding" or drifting. Regular maintenance and adjustments are necessary to restore tension, increasing downtime and maintenance costs. Finally, the ergonomics are poor. A single, fixed damping mode cannot accommodate the differentiated damping force requirements of the two different operational stages: rapid coarse adjustment and fine alignment. The entire operation lacks optimization, easily leading to operator fatigue.

[0005] In existing small cantilever laser welding machines, some parts require manual control to move the welding head near the welding point. However, in practice, even with a small deviation between the welding head and the welding point, the cantilever damping can cause workers to spend more time or effort aligning the welding point. This not only easily leads to a larger positional deviation at the welding point but also affects worker efficiency, increasing reliance on worker experience and further increasing labor costs and impacting output. Therefore, improvements are needed to the damping at the cantilever joint, allowing workers to select appropriate damping based on their current movement. This facilitates rapid head movement and reduces the impact of arm tremors on the welding head. Summary of the Invention

[0006] The problem this invention aims to solve is to address the issues of inconvenience in operation, low alignment accuracy, and frequent maintenance caused by fixed damping during manual operation of cantilever laser welding and cutting machines.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: a multi-functional cantilever laser cutting and welding machine, including a damping component disposed in a rocker arm mechanism, the rocker arm mechanism being disposed on one side of the main body, the damping component being installed at the rotating part of the rocker arm mechanism, a laser module being fixedly disposed at the other end of the rocker arm mechanism, a control component being disposed on one side of the laser module, the control component being used to control the damping component, and a handle being disposed on one side of the control component;

[0008] The damping assembly mainly includes an outer friction ring, a spring, a movable disc, a push-pull line, and an inner friction ring. Several outer friction rings are provided, and an inner friction ring is provided on the inner side of the outer friction ring. A movable disc is fixedly provided on the upper end of the inner friction ring, and a push-pull line is fixedly provided on the upper end of the movable disc. The push-pull line passes through the rocker arm mechanism and is connected to the control assembly.

[0009] The control component includes a base disposed on one side of the rocker arm, an L-shaped mounting plate slidably disposed inside the base, two mounting plates symmetrically arranged vertically along the center line of the base, a protective ring slidably disposed on the inner side of the mounting plate, and the other side of the mounting plate fixedly connected to a push-pull line. A locking block is fixedly disposed on the side of the mounting plate near the base, two of which are provided. The end of the locking block away from the mounting plate is trapezoidal, and the base has a locking groove around the locking block.

[0010] The mounting plate is connected to two push-pull lines. The other end of the push-pull line connected to the mounting plate needs to be connected to the same movable plate. In the initial state, the mounting plate is tightly attached to the upper and lower ends of the base.

[0011] Preferably, the damping assembly further includes a mounting cylinder disposed around the outer friction ring. The mounting cylinder is slidably connected to the outer friction ring through a number of toothed grooves. The upper limit of the number of outer friction rings depends on the height of the toothed grooves. The upper edge of the outer friction ring can only be flush with the toothed grooves at its highest point.

[0012] Preferably, the outer side of the inner friction ring contacts the inner side of the outer friction ring, a spring is fixedly installed at the upper end of the movable disk, one end of the push-pull line is fixedly connected to the movable disk, and two push-pull lines are provided on each movable disk.

[0013] Preferably, the rocker arm mechanism includes a mounting tube fixedly disposed on one side of the main body, a mounting cylinder fixedly disposed at the upper end of the mounting tube, a rotating arm rotatably disposed around the mounting cylinder, a rotating shaft rotatably disposed at the other end of the rotating arm, and a rocker arm rotatably disposed on one side of the rotating shaft.

[0014] Preferably, the end of the rotating arm that contacts the mounting cylinder is fixedly connected to a spring, and the push-pull wire inside the spring passes through the rotating arm and is connected to the control component. The internal structure of the rotating shaft is the same as that of the mounting cylinder.

[0015] Preferably, the mounting cylinder is only located at the non-rotatable part, and the spring can only be connected to the rotatable part.

[0016] Preferably, the locking block passes through the mounting plate and is fixedly connected to the protective ring. The protective ring is used to control the up and down movement of the mounting plate. The end of the locking block is made of wear-resistant rubber, and the inner side of the locking groove is also made of wear-resistant rubber.

[0017] Preferably, there are two handles symmetrically arranged along the center line of the laser module, and only one control component is provided. The control component can be installed on one side of any handle according to the actual situation.

[0018] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0019] (1) The invention successfully solves the shortcomings of fixed damping in manual operation of cantilever laser cutting and welding machines by setting damping components in each joint of the rocker arm mechanism and control components linked with them. Its main beneficial effects are: it realizes stepless or adjustable control of joint damping, and the operator can adjust the damping force in real time through the control components at the handle as needed to quickly make coarse adjustments or fine alignment, thereby improving the operation accuracy and work efficiency; it adopts a purely mechanical friction ring and push-pull line transmission scheme, which avoids the problem of easy failure of the electric control system under special working conditions, and the system has high reliability and strong environmental adaptability. It also fundamentally reduces the maintenance frequency and cost caused by damping attenuation. It is worth mentioning that the inner and outer friction rings in the damping components are modularly designed, which makes replacement more convenient, and the resistance at the joint can be changed by changing the number of outer friction rings.

[0020] (2) The design of the control component of the present invention can not only be adjusted in real time, but also achieve temporary locking of damping force through the cooperation of the card block and the card slot or complete fixation through the addition of the pad block, which meets the needs of long-term fine operation, reduces operator fatigue, and the control component can be flexibly installed on any handle side to adapt to the usage habits of different operators. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a partial structural diagram of the rocker arm mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the damping component structure in the rocker arm mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the non-rotating part of the damping component of the present invention;

[0025] Figure 5 This is a schematic diagram of the rotating part in the damping assembly of the present invention;

[0026] Figure 6 This is a schematic diagram of the laser module and a partial rocker arm mechanism of the present invention;

[0027] Figure 7 This is a partial cross-sectional view of the base structure in the control component of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle;

[0029] Figure 9 This is a schematic diagram of the rear view structure of the control component of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B.

[0031] In the diagram: 1. Main body; 2. Rocker arm mechanism; 201. Main pipe; 202. Rotating arm; 203. Rotating shaft; 204. Rocker arm; 3. Damping assembly; 301. Mounting tube; 302. Mounting ring; 303. Spring; 304. Movable disc; 305. Push-pull line; 306. Internal friction ring; 4. Handle; 5. Control assembly; 501. Base; 502. Mounting plate; 503. Protective ring; 504. Locking block; 505. Locking slot; 6. Laser module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0033] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0034] like Figures 1 to 10 As shown, the present invention provides a multi-functional cantilever laser cutting and welding machine, including a damping component 3 disposed in a rocker arm mechanism 2. The rocker arm mechanism 2 is disposed on one side of the main body 1, and the damping component 3 is installed at the rotation point in the rocker arm mechanism 2. A laser module 6 is fixedly disposed at the other end of the rocker arm mechanism 2. A control component 5 is disposed on one side of the laser module 6. The control component 5 is used to control the damping component 3, and a handle 4 is disposed on one side of the control component 5.

[0035] The damping assembly 3 mainly includes an outer friction ring 302, a spring 303, a movable disc 304, a push-pull line 305, and an inner friction ring 306. Several outer friction rings 302 are provided, and an inner friction ring 306 is provided on the inner side of the outer friction ring 302. A movable disc 304 is fixedly provided on the upper end of the inner friction ring 306, and a push-pull line 305 is fixedly provided on the upper end of the movable disc 304. The push-pull line 305 passes through the rocker arm mechanism 2 and is connected to the control assembly 5.

[0036] The control component 5 includes a base 501 disposed on one side of the rocker arm 204. A mounting plate 502 is slidably disposed inside the base 501. The mounting plate 502 is L-shaped and two mounting plates 502 are symmetrically arranged vertically along the center line of the base 501. A protective ring 503 is slidably disposed on the inner side of the mounting plate 502. The other side of the mounting plate 502 is fixedly connected to the push-pull line 305. A locking block 504 is fixedly disposed on the side of the mounting plate 502 near the base 501. Two locking blocks 504 are provided. The end of the locking block 504 away from the mounting plate 502 is trapezoidal. The base 501 is provided with a locking groove 505 around the locking block 504.

[0037] Each mounting plate 502 is connected to two push-pull lines 305. The other end of the push-pull line 305 connected to the mounting plate 502 needs to be connected to the same movable plate 304. In the initial state, the mounting plate 502 is tightly attached to the upper and lower ends of the base 501.

[0038] The damping assembly 3 also includes a mounting cylinder 301 disposed around the outer friction ring 302. The mounting cylinder 301 is slidably connected to the outer friction ring 302 through a number of toothed grooves. The upper limit of the number of outer friction rings 302 depends on the height of the toothed grooves. When the upper edge of the outer friction ring 302 is at its highest, it can only be flush with the toothed grooves.

[0039] The outer side of the inner friction ring 306 contacts the inner side of the outer friction ring 302. A spring 303 is fixedly installed at the upper end of the movable disk 304. One end of the push-pull line 305 is fixedly connected to the movable disk 304. Two push-pull lines 305 are installed on each movable disk 304.

[0040] The rocker arm mechanism 2 includes a mounting tube 201 fixedly mounted on one side of the main body 1. A mounting cylinder 301 is fixedly mounted on the upper end of the mounting tube 201. A rotating arm 202 is rotatably mounted around the mounting cylinder 301. A rotating shaft 203 is rotatably mounted on the other end of the rotating arm 202. A rocker arm 204 is rotatably mounted on one side of the rotating shaft 203.

[0041] One end of the rotating arm 202 that contacts the mounting cylinder 301 is fixedly connected to the spring 303. The push-pull wire 305 inside the spring 303 passes through the rotating arm 202 and is connected to the control component 5. The internal structure of the rotating shaft 203 is the same as that of the mounting cylinder 301.

[0042] Mounting cylinder 301 is only installed in non-rotatable parts, and spring 303 can only be connected to rotatable parts.

[0043] The locking block 504 passes through the mounting plate 502 and is fixedly connected to the retaining ring 503. The retaining ring 503 is used to control the up and down movement of the mounting plate 502. The end of the locking block 504 is made of wear-resistant rubber, and the inner side of the slot 505 is also made of wear-resistant rubber.

[0044] Two handles 4 are symmetrically arranged along the center line of the laser module 6, while only one control component 5 is provided. The control component 5 can be installed on one side of any handle 4 according to the actual situation.

[0045] The working principle and usage process of this invention: Before welding, the position of the laser module 6 is adjusted, mainly by adjusting the horizontal direction and the vertical direction.

[0046] The vertical adjustment is consistent with the existing solution, allowing workers to directly press the laser module 6 onto the upper end of the welding point. The horizontal adjustment involves the following steps:

[0047] When the position of laser module 6 needs to be adjusted, the worker moves his hand down to the guard ring 503 and hooks the guard ring 503 with his fingers to move the corresponding mounting plate 502. During the movement of the mounting plate 502, the push-pull line 305 will be pulled, which will lift the movable plate 304 and the inner friction ring 306 together.

[0048] In this state, the contact area between the inner friction ring 306 and the outer friction ring 302 decreases, and the resistance at the joint decreases synchronously with the decrease in the contact area between the two, making it easier to adjust the position flexibly.

[0049] Once the laser module 6 is adjusted to the target position, the retaining ring 503 can be released: the inner friction ring 306 will reset under the elastic force of the spring 303, and fully contact the outer friction ring 302 again, restoring the resistance at the joint to its maximum value, ensuring that the subsequent welding process proceeds smoothly.

[0050] It should be noted that control component 5 can not only adjust joint resistance in real time, but also maintain the resistance of a single joint at a specific level for a long period of time. The specific operation is divided into two types:

[0051] Temporary fixation: After the mounting plate 502 is moved to the appropriate position, pull the retaining ring 503 outward to make the locking block 504 lock into the locking groove 505, thereby fixing the position of the mounting plate 502 and locking the contact area of ​​the inner and outer friction rings 306 and 302, thus achieving temporary fixation of the joint resistance.

[0052] Complete fixation: If further reinforcement is required, an external pad can be inserted between the mounting plate 502 and the retaining ring 503 to achieve complete fixation of joint resistance.

[0053] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A multi-functional cantilever laser cutting and welding machine, comprising a damping component (3) disposed within a rocker arm mechanism (2), characterized in that: The rocker arm mechanism (2) is located on one side of the main body (1), the damping component (3) is installed at the rotation point of the rocker arm mechanism (2), the other end of the rocker arm mechanism (2) is fixedly provided with a laser module (6), a control component (5) is provided on one side of the laser module (6), the control component (5) is used to control the damping component (3), and a handle (4) is provided on one side of the control component (5). The damping assembly (3) mainly includes an outer friction ring (302), a spring (303), a movable disc (304), a push-pull line (305), and an inner friction ring (306). Several outer friction rings (302) are provided. An inner friction ring (306) is provided on the inner side of the outer friction ring (302). A movable disc (304) is fixedly provided on the upper end of the inner friction ring (306). A push-pull line (305) is fixedly provided on the upper end of the movable disc (304). The push-pull line (305) passes through the rocker arm mechanism (2) and is connected to the control assembly (5). The control component (5) includes a base (501) disposed on one side of the rocker arm (204). An mounting plate (502) is slidably disposed inside the base (501). The mounting plate (502) is L-shaped. Two mounting plates (502) are symmetrically disposed above and below the center line of the base (501). A protective ring (503) is slidably disposed on the inner side of the mounting plate (502). The other side of the mounting plate (502) is fixedly connected to the push-pull line (305). A locking block (504) is fixedly disposed on the side of the mounting plate (502) near the base (501). There are two locking blocks (504). The end of the locking block (504) away from the mounting plate (502) is trapezoidal. The base (501) is provided with a slot (505) around the locking block (504). Each of the mounting plates (502) is connected to two push-pull lines (305). The other end of the push-pull line (305) connected to the mounting plate (502) needs to be connected to the same movable plate (304). In the initial state, the mounting plates (502) are respectively attached to the upper and lower ends of the base (501).

2. The multifunctional cantilever laser cutting and welding machine according to claim 1, characterized in that: The damping assembly (3) also includes a mounting cylinder (301) disposed around the outer friction ring (302). The mounting cylinder (301) is slidably connected to the outer friction ring (302) through a number of tooth grooves. The upper limit of the number of outer friction rings (302) depends on the height of the tooth grooves. The upper edge of the outer friction ring (302) can only be flush with the tooth grooves at its highest point.

3. The multi-functional cantilever laser cutting and welding machine according to claim 1, characterized in that: The outer side of the inner friction ring (306) is in contact with the inner side of the outer friction ring (302). A spring (303) is fixedly installed at the upper end of the movable disk (304). One end of the push-pull line (305) is fixedly connected to the movable disk (304). Two push-pull lines (305) are provided on each movable disk (304).

4. The multi-functional cantilever laser cutting and welding machine according to claim 1, characterized in that: The rocker arm mechanism (2) includes a mounting tube (201) fixedly mounted on one side of the main body (1). A mounting cylinder (301) is fixedly mounted on the upper end of the mounting tube (201). A rotating arm (202) is rotatably mounted around the mounting cylinder (301). A rotating shaft (203) is rotatably mounted on the other end of the rotating arm (202). A rocker arm (204) is rotatably mounted on one side of the rotating shaft (203).

5. A multi-functional cantilever laser cutting and welding machine according to claim 4, characterized in that: One end of the rotating arm (202) that contacts the mounting cylinder (301) is fixedly connected to the spring (303). The push-pull wire (305) inside the spring (303) passes through the rotating arm (202) and is connected to the control component (5). The internal structure of the rotating shaft (203) is the same as the structure of the mounting cylinder (301).

6. A multi-functional cantilever laser cutting and welding machine according to claim 2, characterized in that: The mounting cylinder (301) is only located in the non-rotatable part, and the spring (303) can only be connected to the rotatable part.

7. A multi-functional cantilever laser cutting and welding machine according to claim 1, characterized in that: The locking block (504) passes through the mounting plate (502) and is fixedly connected to the retaining ring (503). The retaining ring (503) is used to control the mounting plate (502) to move up and down. The end of the locking block (504) is made of wear-resistant rubber, and the inner side of the slot (505) is also made of wear-resistant rubber.

8. A multi-functional cantilever laser cutting and welding machine according to claim 1, characterized in that: Two handles (4) are symmetrically arranged along the center line of the laser module (6), and only one control component (5) is provided. The control component (5) can be installed on one side of any handle (4) according to the actual situation.

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