Full-automatic chain flash welding machine

Abstract

The utility model relates to a full-automatic chain flash welding machine, and relates to the technical field of chain production. The chain welding machine comprises a machine base, a chain guide rail is arranged in the machine base, a welding head is arranged above the chain guide rail, welding clamps are arranged on the two sides of the chain guide rail, two parallel clamping grooves are formed in the surface of the chain guide rail, the clamping grooves are located below the welding head, and the clamping grooves are formed in the moving direction of a chain. Ejection grooves are formed in the sides, away from each other, of the two clamping grooves, an ejection mechanism used for ejecting a chain is arranged in each ejection groove, a recognition mechanism used for detecting an opening of the chain is arranged above the chain guide rail, and the ejection mechanisms are controlled by the recognition mechanism. And the recognition mechanism starts the corresponding ejection mechanism to push the chain based on the opening direction of the chain. The chain welding device has the effect of improving the safety and the production efficiency during chain welding.

Description

Technical Field

[0001] The present application relates to the technical field of chain production, and in particular to a fully automatic chain flash welding machine. Background Art

[0002] A chain is a workpiece used for mechanical transmission and traction. It is usually composed of several metal chain links nested together and has important applications in the industrial field.

[0003] In the related art, a fully automatic chain butt welding machine is designed, including a machine base, a welding gun and a chain guide are arranged on the machine base, a welding clamp is arranged between the welding gun and the chain guide, a fixing frame is arranged at one end of the chain guide, a drag chain robot arm is arranged at the other end of the chain guide, and a plate preheater is arranged on the chain guide; when the chain is actually closed-welded, the chain is dragged by the drag chain robot arm to move on the chain guide, and when the chain link of the chain moves under the welding gun, the welding gun provides current to the two end faces of the chain link, and the current generates heat through the tiny contact points on the surfaces of the two contact surfaces to heat them, and the welding clamps on both sides apply pressure to the chain link, thereby completing the closed-loop welding of the chain link.

[0004] With respect to the above-mentioned related technologies, there are the following problems: since adjacent chain links are nested, the opening positions of different chain links are also different. When welding the chain link openings, workers are required to adjust the positions of the corresponding chain links so that the openings can face the welding gun. However, the high temperature generated during welding will bring safety hazards to the workers, and the manual adjustment method is inefficient, so it needs to be improved. Utility Model Content

[0005] In order to improve the safety and production efficiency during chain welding, the present application provides a fully automatic chain flash welding machine.

[0006] The fully automatic chain flash welding machine provided in this application adopts the following technical solution:

[0007] A fully automatic chain flash welding machine comprises a machine base, a chain guide rail is arranged in the machine base, a welding head is arranged above the chain guide rail, welding clamps are arranged on both sides of the chain guide rail, two mutually parallel clamping grooves are opened on the surface of the chain guide rail, the clamping grooves are located below the welding head, the clamping grooves are opened along the moving direction of the chain, and ejection grooves are opened on the sides away from each other of the two clamping grooves, each of the ejection grooves is provided with an ejection mechanism for lifting the chain, an identification mechanism for detecting the opening of the chain is arranged above the chain guide rail, the ejection mechanism is controlled by the identification mechanism, and the identification mechanism activates the corresponding ejection mechanism based on the direction of the chain opening to push the chain.

[0008] By adopting the above technical solution, the chain moves on the chain guide rail, and when the chain link to be welded comes under the welding head, the identification mechanism will detect the direction of the chain opening, and start the ejection mechanism on the side close to the opening according to the detection result, and lift up the side of the chain with the opening so that the other side of the chain can fall into the corresponding clamping groove, so that the opening remains in a state of extending out of the clamping groove, thereby facilitating the welding head to flash weld the opening, without the need for staff to manually adjust the chain opening, reducing safety hazards and improving work efficiency.

[0009] Optionally, the side edges of the two clamping grooves that are close to each other are both provided with rounded corners.

[0010] By adopting the above technical solution, the rounded corners are provided to protect the surface of the chain when it slides into the clamping groove, thereby reducing the probability of scratches on the chain surface.

[0011] Optionally, a cushion block is provided on the bottom wall of the clamping groove, and a fastener is provided on the surface of the cushion block, and the fastener is used to fix the cushion block to the bottom wall of the clamping groove.

[0012] By adopting the above technical solution, the depth of the clamping groove can be changed by setting a pad, thereby facilitating the welding machine of the present application to weld chains of different sizes.

[0013] Optionally, a movable groove is formed on the inner side wall of the clamping groove, the movable groove is located above the cushion block, an ejection cylinder is arranged in the movable groove, the piston of the ejection cylinder extends out of the movable groove, and a tightening block is arranged on the end wall of the ejection cylinder piston.

[0014] By adopting the above technical solution, when the chain vertically enters the movable groove, the chain can be pressed against the inner wall on the other side of the clamping groove by starting the ejection cylinder, so that the chain can remain in a vertical state, thereby improving welding accuracy.

[0015] Optionally, the bottom wall of the welding head is provided with a retaining groove for the chain to extend into.

[0016] By adopting the above technical solution, the retaining groove can improve the stability of the chain during welding on the one hand, and can shield the welding on the other hand, thereby preventing the bright light generated during welding from damaging the eyes of the workers.

[0017] Optionally, a cooling channel is provided in the welding head, and the cooling channel is connected to a water cooling box through a hose.

[0018] By adopting the above technical solution, the cooling channel is set to cool the welding head in real time, so as to improve the safety during the welding process and ensure the continuous production operation of the welding machine.

[0019] Optionally, the chain guide rail is a sloped structure with inclined ends and a flat middle.

[0020] By adopting the above technical solution, the chain guide rail with a sloped structure can make it possible for the adjacent chain links on both sides to be on the slope surface respectively when welding a single chain link, thereby reducing the interference caused during welding.

[0021] Optionally, two limit baffles are provided on the surface of the chain guide rail, and the limit baffles are arranged along the length direction of the chain guide rail.

[0022] By adopting the above technical solution, setting the limit baffle can ensure that the chain can move according to a predetermined trajectory when moving on the chain guide, thereby preventing the chain from detaching from the chain guide and causing safety hazards.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The chain moves on the chain guide rail. When the chain link to be welded comes under the welding head, the identification mechanism will detect the direction of the chain opening, and start the ejection mechanism on the side close to the opening according to the detection result, and lift up the side of the chain with the opening so that the other side of the chain can fall into the corresponding clamping groove, so that the opening remains in the state of extending out of the clamping groove, so that the welding head can flash weld the opening, and there is no need for the staff to manually adjust the chain opening, which reduces safety hazards and improves work efficiency;

[0025] 2. The chain guide rail with a sloped structure can make the adjacent chain links on both sides be on the slope surface when welding a single chain link, thereby reducing the interference caused by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a fully automatic chain flash welding machine in an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the welding head and the chain guide in the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the top view of the chain guide in the embodiment of the present application.

[0029] Explanation of the reference numerals: 1. Machine base; 11. Identification mechanism; 2. Chain guide; 21. Clamping groove; 22. Ejection groove; 23. Ejection mechanism; 24. Rounded corner; 25. Pad; 251. Fastener; 26. Movable groove; 261. Ejection cylinder; 262. Tightening block; 27. Limit baffle; 3. Welding head; 31. Retaining groove; 32. Cooling channel; 4. Welding fixture; 5. Water cooling box. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a fully automatic chain flash welding machine. Figure 1 and Figure 2 , including a machine base 1, in which a sloped chain guide rail 2 is arranged. The chain guide rail 2 as a whole has an inclined structure at both ends and a flat middle section. A drag chain mechanism is arranged on one side of the chain guide rail 2 to drive the chain to move along the direction of the chain guide rail 2; two limit baffles 27 are arranged on the surface of the chain guide rail 2, and the limit baffles 27 are arranged along the length direction of the chain guide rail 2 to prevent the chain from separating from the chain guide rail 2 during movement.

[0032] Reference Figure 1 and Figure 2 The flat surface of the chain guide 2 is provided with two parallel clamping grooves 21, which are provided along the moving direction of the chain. The two clamping grooves 21 are provided with ejection grooves 22 on the sides facing away from each other. Each ejection groove 22 is provided with an ejection mechanism 23 for lifting the chain. In this embodiment, the ejection mechanism 23 is composed of a cylinder and a push column. By lifting one side of the chain, the other side of the chain can slide into the clamping groove 21 on the other side. In order to reduce the probability of scratches during the sliding process of the chain, the side edges of the two clamping grooves 21 that are close to each other are provided with a makeshift fillet 24.

[0033] Reference Figure 1 and Figure 2 An identification mechanism 11 is provided above the clamping groove 21. In this embodiment, the identification mechanism 11 is a CCD camera and a PLC controller, which is used to identify the direction of the chain opening. The ejection mechanism 23 is controlled by the identification mechanism 11. Based on the identification result, the identification structure starts the ejection mechanism 23 close to the opening side to lift the opening side of the chain, so that the side of the chain without the opening enters the clamping groove 21, thereby facilitating welding.

[0034] Reference Figure 2 and Figure 3 A welding head 3 is arranged above the clamping groove 21, and two mutually parallel retaining grooves 31 are opened on the bottom wall of the welding head 3, and each retaining groove 31 corresponds to a clamping groove 21. The discharge part of the welding head 3 is located in the retaining groove 31, so as to have a good shading effect and protect the eyes of the staff. At the same time, the retaining groove 31 can also keep the chain stable during the welding process; correspondingly, in order to enable the chain to be aligned with the retaining groove 31, a movable groove 26 is opened on the inner wall of the corresponding clamping groove 21, and an ejection cylinder 261 is arranged in the movable groove 26. The piston rod of the ejection cylinder 261 extends out of the movable groove 26 and is connected with a tightening block 262, so that the chain can be pressed against the inner wall on the other side of the clamping groove 21, so that the chain can be kept in a vertical state.

[0035] Reference Figure 1 , welding fixtures 4 are provided on both sides of the chain guide rail 2 to apply pressure to both ends of the chain to promote the joining of the end faces.

[0036] Reference Figure 2 and Figure 3 A pad 25 is provided on the bottom wall of the clamping groove 21, and a fastener 251 is provided on the pad 25. In this embodiment, the fastener 251 is a screw for fixing the pad 25 to the bottom wall of the clamping groove 21. By providing the pad 25, the depth of the clamping groove 21 can be changed, thereby facilitating welding of chains of different widths. To facilitate the chain to leave the clamping groove 21, the inner walls at both ends of the pad 25 are arc-shaped.

[0037] Reference Figure 1 and Figure 2 In order to improve the safety during welding, a cooling channel 32 is provided inside the welding head 3, and the cooling channel 32 is connected to the water cooling box 5 through a hose, so as to absorb heat during welding to ensure continuous welding.

[0038] The implementation principle of a fully automatic chain flash welding machine in an embodiment of the present application is as follows: the chain moves on the chain guide rail 2, and when the chain link to be welded of the chain comes under the welding head 3, the identification mechanism 11 will detect the direction of the chain opening, and start the ejection mechanism 23 on the side close to the opening according to the detection result, and lift up the side of the chain with the opening so that the other side of the chain can fall into the corresponding clamping groove 21, so that the opening remains in a state of extending out of the clamping groove 21, and the ejection cylinder 261 will tighten the chain so that the chain is in a vertical state, and then the welding head 3 will fall, so that the chain extends into the retaining groove 31, so as to facilitate the welding head 3 to flash weld the opening, and there is no need for the staff to manually adjust the chain opening, which reduces safety hazards and improves work efficiency.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic chain flash welding machine, comprising a machine base (1), a chain guide rail (2) is arranged in the machine base (1), a welding head (3) is arranged above the chain guide rail (2), and welding fixtures (4) are arranged on both sides of the chain guide rail (2), characterized in that: The surface of the chain guide rail (2) is provided with two mutually parallel clamping grooves (21), the clamping grooves (21) are located below the welding head (3), the clamping grooves (21) are opened along the moving direction of the chain, and the two clamping grooves (21) are provided with ejection grooves (22) on the side away from each other, and each ejection groove (22) is provided with an ejection mechanism (23) for lifting the chain, and an identification mechanism (11) for detecting the opening of the chain is provided above the chain guide rail (2), and the ejection mechanism (23) is controlled by the identification mechanism (11), and the identification mechanism (11) activates the corresponding ejection mechanism (23) based on the direction of the chain opening to push the chain.

2. A fully automatic chain flash welding machine according to claim 1, characterized in that: The side edges of the two clamping grooves (21) that are close to each other are both provided with rounded corners (24).

3. A fully automatic chain flash welding machine according to claim 2, characterized in that: A cushion block (25) is provided on the bottom wall of the clamping groove (21), and a fastener (251) is provided on the surface of the cushion block (25). The fastener (251) is used to fix the cushion block (25) to the bottom wall of the clamping groove (21).

4. A fully automatic chain flash welding machine according to claim 3, characterized in that: The inner side wall of the clamping groove (21) is provided with a movable groove (26), the movable groove (26) is located above the cushion block (25), an ejection cylinder (261) is arranged in the movable groove (26), the piston of the ejection cylinder (261) extends out of the movable groove (26), and a pressing block (262) is arranged on the end wall of the piston of the ejection cylinder (261).

5. A fully automatic chain flash welding machine according to claim 1, characterized in that: The bottom wall of the welding head (3) is provided with a retaining groove (31) for the chain to extend into.

6. A fully automatic chain flash welding machine according to claim 1, characterized in that: A cooling channel (32) is provided in the welding head (3), and the cooling channel (32) is connected to a water cooling box (5) via a hose.

7. A fully automatic chain flash welding machine according to claim 1, characterized in that: The chain guide rail (2) is a sloped structure with inclined ends and a flat middle.

8. A fully automatic chain flash welding machine according to claim 7, characterized in that: Two limit baffles (27) are arranged on the surface of the chain guide rail (2), and the limit baffles (27) are arranged along the length direction of the chain guide rail (2).

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