Welding wire forming and spot welding equipment

Abstract

The invention discloses welding wire forming and spot welding equipment, and relates to the technical field of laser welding. The rack is connected with an operation screen, and the bottom of the rack is connected with a bottom frame; a supporting frame is arranged in the rack, ground feet are connected to the bottom of the supporting frame, and an operation table is arranged on the bottom frame. According to the automatic welding device, the length is automatically fixed, the welding wire is automatically cut, the welding wire is automatically bent and formed, an opening of the welding wire is automatically subjected to laser spot welding, the bent and formed welding ring is machined into the closed welding ring, the closed welding ring is automatically stored by the receiving mechanism, the closed welding ring is automatically produced, manual adjustment and intervention of the welding condition are not needed, and the production efficiency is improved. Excessive human influence risks in the welding process are avoided, the higher requirements of the modern industry for the welding quality and the automation degree of new energy cooling pipe production are met, the production efficiency and the welding quality are improved, the production cost and the reject ratio are reduced, the production stability and adaptability are enhanced, and the production cost is reduced. And important technical progress and economic benefits are achieved for production of new energy cooling pipes.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to welding wire forming and spot welding equipment. Background Art

[0002] Welding wire forming and spot welding equipment is mainly used to produce metal welding rings, especially for manufacturing closed welding rings. This equipment processes metal welding wire into the required shape and size through a series of automated processes, and then connects the welding wire into a ring structure through a spot welding process. It can process metal welding wire into open welding rings and closed welding rings. These welding rings are widely used in various industrial fields, such as automobile manufacturing, construction, pipelines, furniture, etc. Through automated production, the equipment can produce welding rings quickly and continuously, greatly improving production efficiency and reducing production costs. The automated operation of the equipment reduces human errors and ensures the dimensional accuracy of the welding rings and the consistency of welding quality. It is an important equipment in the metal processing industry. It realizes efficient and high-quality production of welding rings through automation technology;

[0003] In the production process of new energy cooling pipes, an open welding ring is used to weld the cooling pipe to the end. One end of the open welding ring is aligned with the end of the cooling pipe. The open welding ring and the cooling pipe are welded together using high-frequency welding or medium-frequency welding. The high-frequency current / medium-frequency current heats the welding ring, and the cooling pipe and the end are welded by melting the welding wire through non-contact heating. After welding, the welding area is quality inspected to ensure that the strength and sealing of the weld meet the requirements;

[0004] The shortcomings of the above scheme are: this welding method has a high production defect rate and poor stability, the purchase cost of the open welding ring is high and the dimensional accuracy is poor. If the open welding ring is not manually intervened during the welding process, the welding wire at the opening will be uncontrollable. For example, the welding wire will be warped during the welding process, or even the welding wire will melt and fall, resulting in a weld, which will have an irreversible impact on production; and when welding with an open welding ring, the welding ring is manually adjusted while welding using a ceramic rod, and external force is applied to the welding wire during the welding process to prevent poor welding. This method requires manual intervention and has technical problems such as unstable welding conditions. Summary of the invention

[0005] The purpose of the present invention is to provide welding wire forming and spot welding equipment to solve the problems in the prior art such as high defective rate and poor stability, high procurement cost and poor dimensional accuracy of open welding rings. If the open welding rings are not manually intervened during the welding process, the welding wire at the opening will be uncontrollable. When welding with open welding rings, ceramic rods are used manually to adjust the welding rings while welding, and external force is applied to the welding wire during the welding process to prevent poor welding. This method requires manual intervention and has technical problems such as unstable welding conditions.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A wire forming and spot welding device, comprising a frame;

[0008] An operation screen is connected to the frame, and a chassis is connected to the bottom of the frame;

[0009] A support frame is arranged inside the frame, the bottom of the support frame is connected with a floor foot, an operation table is arranged on the chassis, a spot welding machine control board is connected to the operation table, and the spot welding machine control board is connected with a laser spot welding machine through a data cable;

[0010] A wire feeding station is connected to the operation table, and the wire feeding station is a wire coil rack; a vertical servo transplanting device I is arranged on the support frame, and a plurality of welding ring receiving plates are slidably arranged between the vertical servo transplanting device I and the operation table, and an installation mechanism is connected between the welding ring receiving plates and the vertical servo transplanting device I; a receiving tongue plate is arranged at one end of the welding ring receiving plate far away from the vertical servo transplanting device I; two straightening modules are connected to the operation table, and the two straightening modules include a straightening wheel group I and a straightening wheel group II; pneumatic scissors are arranged on the sides of the two straightening modules; a bending and forming station is arranged on the operation table, a forming pressing plate is arranged on the side of the bending and forming station, and a wire body is arranged at the bottom of the forming pressing plate; wire copying tools are arranged on both sides of the forming pressing plate; a wire gripper is arranged on the operation table.

[0011] As a further scheme of the present invention: a plurality of safety doors are rotatably connected to the frame.

[0012] As a further scheme of the present invention: a plurality of floor feet are connected to the chassis.

[0013] As a further scheme of the present invention: the installation mechanism includes a connecting frame and screws, the connecting frame is connected between the welding ring receiving plate and the vertical servo transplanting device I, and the screws are connected between the connecting frame and the welding ring receiving plate.

[0014] As a further scheme of the present invention: the connecting frame is L-shaped.

[0015] As a further scheme of the present invention: the straightening wheel group I is arranged in the horizontal direction, and the straightening wheel group II is arranged in the vertical direction.

[0016] As a further scheme of the present invention: the two straightening modules are connected to the operation table through shafts and bearings.

[0017] As a further scheme of the present invention: a vertical servo transplanting device II is arranged on the operation table, a front and rear servo transplanting device is arranged on the operation table, and the front and rear servo transplanting device and the vertical servo transplanting device II are connected to the operation table through guide rails.

[0018] As a further solution of the present invention: a guiding frame is provided below the forming pressing plate, and the welding wire body is arranged on the guiding frame.

[0019] As a further solution of the present invention: a compressed air source is connected to the operating table, the welding wire gripper is connected to the compressed air source through an air pipeline, and the welding wire gripper is arranged in cooperation with the welding wire body.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention automatically determines the length and cuts the welding wire, automatically bends the welding wire into a formed shape, automatically laser spot-welds the opening of the welding wire, processes the formed welding ring into a closed welding ring, and the closed welding ring is automatically stored by the material receiving mechanism. The automatically produced closed welding ring no longer requires manual adjustment and intervention in the welding situation, avoiding excessive human influence risks during the welding process, meeting the higher requirements of modern industry for the welding quality and automation degree of new energy cooling pipe production, not only improving the production efficiency and welding quality, but also reducing the production cost and defective rate, enhancing the stability and adaptability of production, and having important technological progress and economic benefits for the production of new energy cooling pipes.

[0022] 2. The formed open welding ring of the present invention is moved to the laser spot-welding station. The pneumatic wire-pushing sleeve pushes the welding ring under the pressing block. The pressing block presses down to hold the opening of the open welding ring. The laser spot-welding machine is triggered to spot-weld the welding wires together to form a closed welding ring. The completed spot-welded closed welding ring is pushed by the wire-pushing plate to the receiving tongue plate of the receiving and transplanting device. The receiving and transplanting device moves the welding ring to the automatic storage station. After reaching the automatic storage station, the wire-pushing plate behind the receiving tongue plate pushes the welding ring onto the welding ring receiving plate for batch storage. The automated equipment can precisely control welding parameters such as pressure, welding time, and welding position, thus ensuring the consistency and stability of welding quality, reducing welding defects caused by improper manual operation, and improving the qualified rate of products.

[0023] 3. The cut welding wire of the present invention is precisely cut by a pneumatic scissors to obtain the required welding wire length. The pneumatic scissors are connected to the compressed air source through an air pipeline to ensure the accuracy and efficiency of the cutting action. The cut welding wire is rotated 180 degrees and moved to the bending and forming station. The forming pressing plate presses down on the welding wire for bottom forming, and then rises to the wire-catching position. The wire-catching tooling catches the welding wire from both sides for wire-catching forming to form an open welding ring. The wire-catching tooling catches the welding wire from both sides for wire-catching forming, which helps to form a uniform open welding ring shape. The cut welding wire is directly rotated to the bending and forming station, reducing intermediate links and improving the overall production efficiency. Description of the drawings

[0024] The present invention will be further described below with reference to the drawings.

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the internal structural schematic diagram of the present invention;

[0027] Figure 3 is Figure 2 the schematic diagram of the back structure;

[0028] Figure 4 is the internal structural schematic diagram of the present invention;

[0029] Figure 5 is Figure 4 the enlarged structural schematic diagram at position A in;

[0030] Figure 6 is Figure 4 the enlarged structural schematic diagram at position B in.

[0031] In the figure: 1, frame; 2, operation screen; 3, safety door; 4, floor feet; 5, support frame; 6, up and down servo transplanting one; 7, laser spot welder; 8, welding ring receiving plate; 9, spot welder control board; 10, wire feeding station; 11, straightening wheel group one; 12, pneumatic scissors; 13, up and down servo transplanting two; 14, front and back servo transplanting; 15, chassis; 16, operation table; 17, straightening wheel group two; 18, wire gripper; 19, receiving tongue plate; 20, connecting frame; 21, screw; 22, forming pressing plate; 23, wire body; 24, wire copying tooling; 25, bending and forming station. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] As Figures 1-6 shown, the wire forming and spot welding equipment includes a frame 1, an operation screen 2 is connected to the frame 1, a plurality of safety doors 3 are rotatably connected to the frame 1, a chassis 15 is connected to the bottom of the frame 1, and a plurality of floor feet 4 are connected to the chassis 15; with the setting of the operation screen 2 and the spot welder control board 9, operators can control the equipment and set parameters through an intuitive interface, reducing the operation difficulty;

[0034] A support frame 5 is provided inside the frame 1, the bottom of the support frame 5 is connected to the floor feet 4, an operation table 16 is provided on the chassis 15, a spot welder control board 9 is connected to the operation table 16, and the spot welder control board 9 is connected to a laser spot welder 7 through a data cable;

[0035] A wire feeding station 10 is connected to the operation table 16, and the wire feeding station 10 is a wire coil rack; a vertical servo transfer unit 6 is provided on the support frame 5, and a plurality of welding ring receiving plates 8 are slidably arranged between the vertical servo transfer unit 6 and the operation table 16. An installation mechanism is connected between the welding ring receiving plate 8 and the vertical servo transfer unit 6. The installation mechanism includes a connecting frame 20 and a screw 21. The connecting frame 20 is connected between the welding ring receiving plate 8 and the vertical servo transfer unit 6. The connecting frame 20 is L-shaped, and the screw 21 is connected between the connecting frame 20 and the welding ring receiving plate 8; a receiving tongue plate 19 is arranged at one end of the welding ring receiving plate 8 away from the vertical servo transfer unit 6;

[0036] Two straightening module groups are connected to the operation table 16. The two straightening module groups include a first straightening wheel group 11 and a second straightening wheel group 17. The first straightening wheel group 11 is arranged in the horizontal direction, and the second straightening wheel group 17 is arranged in the vertical direction. The two straightening module groups are connected to the operation table 16 through shafts and bearings; the first straightening wheel group 11 and the second straightening wheel group 17 can ensure that the wire reaches an ideal straightness and position before welding, thereby improving the welding quality; pneumatic scissors 12 are arranged on the sides of the two straightening module groups;

[0037] A vertical servo transfer unit 13 is arranged on the operation table 16, and a front-back servo transfer unit 14 is arranged on the operation table 16. The front-back servo transfer unit 14 and the vertical servo transfer unit 13 are connected to the operation table 16 through guide rails; the equipment integrates multiple automated components and can automatically complete operations such as wire feeding, positioning, forming, and cutting, improving production efficiency; a bending and forming station 25 is provided on the operation table 16. A forming pressing plate 22 is arranged on the side of the bending and forming station 25. A wire body 23 is arranged at the bottom of the forming pressing plate 22. A guiding frame is arranged below the forming pressing plate 22. The wire body 23 is arranged on the guiding frame; wire copying tooling 24 is arranged on both sides of the forming pressing plate 22; a wire gripper 18 is arranged on the operation table 16. A compressed air source is connected to the operation table 16. The wire gripper 18 is connected to the compressed air source through an air pipeline. The wire gripper 18 is arranged in cooperation with the wire body 23; through the wire gripper 18 and the wire copying tooling 24, the wire can be accurately cut, reducing material waste;

[0038] The automated spot welding process and wire forming process can significantly improve production efficiency and reduce manual operation time. The design of multiple safety doors 3 can prevent accidental operations during equipment operation, enhancing the safety of operators. The structural design of the equipment takes into account the convenience of maintenance. For example, the connection between the feet 4 and the support frame 5 facilitates the movement and repair of the equipment. Multiple components of the equipment, such as the servo transplant and the forming pressing plate 22, can be adjusted according to different welding requirements, improving the adaptability and flexibility of the equipment. The automated operation reduces manual repetitive labor and the labor intensity of operators. The automated equipment can ensure that the parameters of each welding and forming are consistent, thus improving the consistency of product quality.

[0039] Working principle of the present invention: The unprocessed coiled welding wire is placed on the wire loading station 10 (wire reel rack), which is the starting point of the entire production line and provides raw materials for subsequent processes. The welding wire passes through the straightening wheel sets one 11 and two 17 in the horizontal and vertical directions. The welding wire is straightened when passing through, removing the bending and twisting of the welding wire. The welding wire is clamped by the pneumatic scissors 12 and pulled out by the front and rear servo transplants 14 and the up and down servo transplant two 13. According to the preset stretching value, the welding wire is cut to a fixed length, which is manually controlled by the operator through the spot welding machine control panel 9 to meet the requirements of different lengths. The cut welding wire is precisely cut by the wire gripper 18 to obtain the required length of the welding wire. The wire gripper 18 is connected to the compressed air source through an air pipeline to ensure the accuracy and efficiency of the cutting action. The cut welding wire is rotated 180 degrees and moved to the bending and forming station 25. The forming pressing plate 22 presses down on the welding wire for bottom forming, and then rises to the wire picking position. The wire picking tooling 24 picks up and forms the welding wire from both sides to form an open welding ring. The formed open welding ring is moved to the laser spot welding station. The pneumatic wire pushing sleeve pushes the welding ring under the pressing block, and the pressing block presses down to hold the opening of the open welding ring. The laser spot welding machine 7 is triggered to weld the welding wires together to form a closed welding ring. The completed closed welding ring is pushed by the wire pushing plate to the receiving tongue plate 19 of the receiving transplant. The receiving transplant moves the welding ring to the automatic storage station. After reaching the automatic storage station, the welding ring is pushed by the wire pushing plate behind the receiving tongue plate 19 onto the welding ring receiving plate 8 for batch storage; The entire equipment realizes the automated production process of the welding wire from loading, cutting, forming, spot welding to storage through automated control. Each station is coordinated by corresponding mechanical devices and control systems to ensure production efficiency and product quality. The operator monitors and operates the entire production process through the control panel on the operation console 16; Each link of the automated production line from loading to storage is jointly completed by mechanical devices and control systems, greatly reducing the manual operation time and improving the overall production efficiency. The automated straightening, cutting, forming, and spot welding processes can ensure the dimensional accuracy of the welding wire and the consistency of the welding quality. Due to the high degree of automation, the demand for labor in the production line is reduced, thus reducing the labor cost. Automation reduces the possibility of manual operation and reduces product defects caused by human errors.

[0040] The above has described in detail an embodiment of the present invention, but the content is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. Wire forming and spot welding equipment, including a frame (1); characterized in that: An operation screen (2) is connected to the frame (1), and a chassis (15) is connected to the bottom of the frame (1); A support frame (5) is arranged inside the frame (1), a floor footing (4) is connected to the bottom of the support frame (5), an operating table (16) is arranged on the chassis (15), a spot welding machine control board (9) is connected to the operating table (16), and the spot welding machine control board (9) is connected to a laser spot welding machine (7) through a data cable; A wire feeding station (10) is connected to the operating table (16), and the wire feeding station (10) is a wire coil rack; an up-and-down servo transfer device one (6) is arranged on the support frame (5), and a plurality of welding ring receiving plates (8) are slidably arranged between the up-and-down servo transfer device one (6) and the operating table (16), and an installation mechanism is connected between the welding ring receiving plate (8) and the up-and-down servo transfer device one (6); a receiving tongue plate (19) is arranged at one end of the welding ring receiving plate (8) away from the up-and-down servo transfer device one (6); two groups of straightening modules are connected to the operating table (16), and the two groups of straightening modules include a straightening wheel group one (11) and a straightening wheel group two (17); a pneumatic scissors (12) is arranged on the side of the two groups of straightening modules; a bending and forming station (25) is arranged on the operating table (16), a forming pressing plate (22) is arranged on the side of the bending and forming station (25), a wire body (23) is arranged at the bottom of the forming pressing plate (22); copying wire toolings (24) are arranged on both sides of the forming pressing plate (22); a wire gripper (18) is arranged on the operating table (16).

2. The wire forming and spot welding equipment according to claim 1, characterized in that, A plurality of safety doors (3) are flip-connected to the frame (1).

3. The wire forming and spot welding equipment according to claim 1, characterized in that A plurality of floor footings (4) are connected to the chassis (15).

4. The wire forming and spot welding equipment according to claim 1, characterized in that, The installation mechanism includes a connecting frame (20) and a screw (21), the connecting frame (20) is connected between the welding ring receiving plate (8) and the up-and-down servo transfer device one (6), and the screw (21) is connected between the connecting frame (20) and the welding ring receiving plate (8).

5. The wire forming and spot welding equipment according to claim 4, characterized in that, The connecting frame (20) is L-shaped.

6. The wire forming and spot welding equipment according to claim 1, characterized in that, The straightening wheel group one (11) is arranged in the horizontal direction, and the straightening wheel group two (17) is arranged in the vertical direction.

7. The wire forming and spot welding equipment according to claim 1, characterized in that The two groups of straightening modules are connected to the operating table (16) through a shaft and bearings.

8. The wire forming and spot welding equipment according to claim 1, characterized in that, An up-and-down servo transfer device two (13) is arranged on the operating table (16), a front-and-rear servo transfer device (14) is arranged on the operating table (16), and the front-and-rear servo transfer device (14) and the up-and-down servo transfer device two (13) are connected to the operating table (16) through guide rails.

9. The wire forming and spot welding equipment according to claim 1, characterized in that, A guiding frame is arranged below the forming pressing plate (22), and the wire body (23) is arranged on the guiding frame.

10. The wire forming and spot welding equipment according to claim 1, characterized in that, A compressed air source is connected to the operating table (16), the wire gripper (18) is connected to the compressed air source through an air pipeline, and the wire gripper (18) is arranged in cooperation with the wire body (23).

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