Full-automatic feeding and discharging mechanism of laser welding machine

Abstract

The utility model discloses a full-automatic feeding and discharging mechanism of a laser welding machine, which relates to the technical field of laser welding and comprises a base, a feeding mechanism is fixedly connected to one side of the top end of the base, a welding arm is mounted at the top end of the base, and the welding arm is positioned beside the feeding mechanism; the feeding mechanism comprises two sets of supporting frames, a conveying belt is installed between the two sets of supporting frames, multiple sets of through holes are formed in the surface of the conveying belt, and a negative pressure cabin located in the conveying belt is fixedly connected between the two sets of supporting frames. A workpiece is placed at the top end of the conveying belt, the conveying belt is used for moving the workpiece, when the workpiece moves to the position above the air inlet, the sheet-shaped workpiece is tightly adsorbed to the upper surface of the conveying belt through negative pressure in the negative pressure cabin, and therefore the workpiece is fixed. And in the welding process, the workpiece can be moved in an edited mode, and the workpiece can also be fixed in an edited mode.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a full-automatic loading and unloading mechanism for a laser welding machine. Background Technique

[0002] A laser welding machine, also often called a laser welder or a laser beam welder, is a machine used for laser material processing. It is divided into a laser die welder, an automatic laser welding machine, a laser spot welder, and a fiber-optic transmission laser welding machine according to its working mode. Laser welding uses a high-energy laser pulse to locally heat a small area of the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool to achieve the purpose of welding. When the existing laser welding machine works, it is necessary for workers to manually pick up the parts to be processed, which is prone to danger during processing. Picking up the parts to be processed back and forth will affect the work efficiency and is time-consuming and laborious.

[0003] An automatic loading and unloading device for a laser welding machine disclosed in the existing patent (publication number: CN208019620U) includes a device body. The device body includes two opposite cross plates. First hydraulic cylinders are fixedly connected to both cross plates. Connecting rods are fixedly connected to the front and rear parts of both cross plates. A connecting plate is fixedly connected between the upper ends of the same-side connecting rods. Chutes are provided on the connecting plates. The beneficial effects of the utility model are as follows: By setting two cross plates equipped with first hydraulic cylinders, a second hydraulic cylinder is arranged inside the secondary rod of the utility model. A push rod with a push plate is arranged on the second hydraulic cylinder of the utility model. The first hydraulic cylinder of the utility model is fixedly connected to the cross bar. Both ends of the cross bar are slidably connected to the chutes provided on the connecting plate through sliders. The utility model realizes the automatic loading and unloading of the laser welding machine by using the back-and-forth movement of the first hydraulic cylinder and the up-and-down movement of the second hydraulic cylinder.

[0004] However, there are still certain defects in the above technical solution. The above technical solution moves the workpiece to be processed to the lower part of the welding machine for welding by means of clamping and moving. However, when the laser welding machine is welding, the heat-affected area is small, and only local heating of a small area is performed on the workpiece. This makes the laser welding machine often used for welding some relatively thin sheet workpieces. The clamping method in the above technical solution is not convenient for loading and unloading relatively thin sheet workpieces, and there are strong limitations in the use process. Therefore, a full-automatic loading and unloading mechanism for a laser welding machine is proposed. Content of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a full-automatic loading and unloading mechanism for a laser welding machine to solve the technical problems raised in the above background.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a fully automatic loading and unloading mechanism for a laser welding machine, including a base, a loading mechanism is fixedly connected to a position on one side of the top of the base, a welding arm is installed on the top of the base, and the welding arm is located beside the loading mechanism;

[0007] The loading mechanism includes two groups of support frames, a conveyor belt is installed between the two groups of support frames, a plurality of through holes are formed on the surface of the conveyor belt, a negative pressure chamber located inside the conveyor belt is fixedly connected between the two groups of support frames, the top of the negative pressure chamber is slidably sleeved on the outer wall of the conveyor belt, an air inlet is formed at a position where the top of the negative pressure chamber contacts the conveyor belt, a plurality of first negative pressure fans are fixedly installed on the inner wall of the negative pressure chamber, the first negative pressure fans are located directly below the air inlet, and an air outlet is formed on each side of the negative pressure chamber.

[0008] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, a plurality of second negative pressure fans are fixedly installed on each side of the negative pressure chamber, and the second negative pressure fans are respectively aligned with the two air outlets.

[0009] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, filter cotton is fixedly connected to a position on the inner wall of the negative pressure chamber corresponding to the air outlet, and activated carbon is arranged on the inner wall of the negative pressure chamber.

[0010] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, a collection mechanism is arranged above the two groups of support frames, the collection mechanism includes a guide plate, and the guide plate is rotatably connected to the side wall of one of the support frames.

[0011] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, a connecting plate is fixedly connected to the side wall of the other support frame, a sliding frame is fixedly connected to a position on one side of the top of the connecting plate, a push rod is slidably sleeved on the outer wall of the sliding frame, a clamping plate is rotatably connected to the top of the push rod, and the clamping plate is slidably sleeved on the bottom end of the guide plate.

[0012] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, a plurality of limiting teeth are fixedly connected to the top of the connecting plate, the plurality of limiting teeth are located beside the sliding frame, a limiting arm is rotatably connected to the side wall of the push rod, the limiting arm is engaged with the limiting teeth, and a torsion spring is arranged at the connection of the limiting arm and the push rod.

[0013] As a preferred technical solution of the fully automatic loading and unloading mechanism for a laser welding machine of the present utility model, a collection box is fixedly connected to the top of the base, and the collection box is located beside the loading mechanism and the welding arm.

[0014] In summary, the main beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the workpiece is placed on the top of the conveyor belt, and the conveyor belt is used to move the workpiece. When the workpiece moves above the air inlet, the thin sheet-like workpiece is tightly adsorbed on the upper surface of the conveyor belt by the negative pressure inside the negative pressure chamber, thereby fixing the workpiece, so that the workpiece can be moved and fixed as required during the welding process.

[0016] 2. The present utility model blocks the processed workpiece through the material guide plate, so that the workpiece slides down along the material guide plate into the collection box, and the angle of the material guide plate can be adjusted according to different requirements for the placement position of the collection box at different workstations, making the entire loading and unloading mechanism more convenient to use, improving the production and processing efficiency and the adaptability of the loading and unloading mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view structural schematic diagram of the present utility model;

[0018] Figure 2 is the side view structural schematic diagram of the present utility model;

[0019] Figure 3 is the front view structural schematic diagram of the collection mechanism of the present utility model;

[0020] Figure 4 is the front view structural schematic diagram of the push rod and the sliding frame of the present utility model;

[0021] Figure 5 is the cross-sectional view structural schematic diagram of the negative pressure chamber of the present utility model.

[0022] In the figure: 1, base; 2, loading mechanism; 3, collection mechanism; 4, welding arm;

[0023] 201, support frame; 202, conveyor belt; 203, negative pressure chamber; 204, air inlet; 205, first negative pressure fan; 206, air outlet; 207, second negative pressure fan; 208, filter cotton; 209, activated carbon;

[0024] 301, material guide plate; 302, connecting plate; 303, sliding frame; 304, push rod; 305, clamping plate; 306, limiting tooth; 307, limiting arm; 308, collection box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0026] According to the overall structure of the present utility model, embodiments thereof will be described below.

[0027] A fully automatic loading and unloading mechanism for a laser welding machine, as Figures 1 to 5 shown, includes a base 1. A loading mechanism 2 is fixedly connected to a position on one side near the top of the base 1. A welding arm 4 is installed on the top of the base 1, and the welding arm 4 is located beside the loading mechanism 2;

[0028] The loading mechanism 2 includes two groups of support frames 201. A conveyor belt 202 is installed between the two groups of support frames 201. A plurality of through holes are formed on the surface of the conveyor belt 202. A negative pressure chamber 203 located inside the conveyor belt 202 is fixedly connected between the two groups of support frames 201. The top of the negative pressure chamber 203 is slidably sleeved on the outer wall of the conveyor belt 202. An air inlet 204 is formed at a position where the top of the negative pressure chamber 203 contacts the conveyor belt 202. A plurality of first negative pressure fans 205 are fixedly installed on the inner wall of the negative pressure chamber 203. The first negative pressure fans 205 are located directly below the air inlet 204. One air outlet 206 is formed on each side of the negative pressure chamber 203. A plurality of second negative pressure fans 207 are fixedly installed on each side of the negative pressure chamber 203. The second negative pressure fans 207 are respectively aligned with the two air outlets 206. Filter cotton 208 is fixedly connected to a position on the inner wall of the negative pressure chamber 203 corresponding to the air outlet 206. Activated carbon 209 is arranged on the inner wall of the negative pressure chamber 203.

[0029] The workpiece is pushed and moved to directly above the negative pressure chamber 203 by the rotation of the conveyor belt 202. During use, the welding arm 4 can be replaced with other laser welding machines according to specific requirements. The first negative pressure fans 205 and the second negative pressure fans 207 continuously suck air from the air inlet 204 and then exhaust it from the air outlets 206, so that a large amount of air is continuously sucked into the negative pressure chamber 203 from the air inlet 204, thereby enabling the workpiece to be adsorbed on the conveyor belt 202 through the through holes on the conveyor belt 202. At this time, the conveyor belt 202 stops rotating. After welding is completed, the conveyor belt 202 continues to rotate to move the next workpiece to directly above the air inlet. During the welding process, the toxic smoke generated during welding is sucked into the negative pressure chamber 203, and then the toxic smoke is filtered by the activated carbon 209 and the filter cotton 208, ensuring the safety of the staff.

[0030] Please refer specifically to Figure 2 and Figure 3, a collecting mechanism 3 is arranged above the two groups of the support frames 201. The collecting mechanism 3 includes a material guiding plate 301 which is rotatably connected to the side wall of one group of the support frames 201. A connecting plate 302 is fixedly connected to the side wall of the other group of the support frames 201. At one side near the top end of the connecting plate 302, a sliding frame 303 is fixedly connected. An outer wall of the sliding frame 303 is slidably sleeved with a push rod 304. A top end of the push rod 304 is rotatably connected to a clamping plate 305. The clamping plate 305 is slidably sleeved at a bottom end of the material guiding plate 301. A plurality of groups of limiting teeth 306 are fixedly connected to the top end of the connecting plate 302. The plurality of groups of limiting teeth 306 are located beside the sliding frame 303. A limiting arm 307 is rotatably connected to a side wall of the push rod 304. The limiting arm 307 is engaged with the limiting teeth 306. A torsion spring is arranged at a connection part of the limiting arm 307 and the push rod 304. A collecting frame 308 is fixedly connected to a top end of the base 1. The collecting frame 308 is located beside the feeding mechanism 2 and the welding arm 4.

[0031] With the pushing of the conveyor belt 202, the workpiece contacts the material guiding plate 301. At this time, the workpiece slides along the material guiding plate 301 and falls into the collecting frame 308. By pushing the limiting arm 307, the limiting arm 307 is separated from the limiting teeth 306 and the torsion spring is twisted. At this time, the push rod 304 can freely slide on the outer wall of the sliding frame 303. Then, the push rod 304 is pushed, so that the push rod 304 drives the clamping plate 305 to move. The clamping plate 305 pushes the material guiding plate 301 to rotate. And because the material guiding plate 301 rotates, the clamping plate 305 rotates with the push rod 304. During the rotation of the material guiding plate 301, the clamping plate 305 slides at the bottom end of the material guiding plate 301, so that the material guiding plate 301 can be adjusted according to the usage situation.

[0032] During use, by placing the workpiece on the top end of the conveyor belt 202 and using the conveyor belt 202 to move the workpiece, when the workpiece moves above the air inlet 204, the thin workpiece is tightly adsorbed on the upper surface of the conveyor belt 202 by the negative pressure inside the negative pressure chamber 203, so as to fix the workpiece. In this way, during the welding process, the workpiece can be conveniently moved and fixed. Parts not involved in this device are the same as or can adopt the prior art to be realized.

[0033] Although embodiments of the present utility model have been shown and described, the specific embodiments are only interpretations of the present utility model and are not limitations thereof. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An automatic loading and unloading mechanism for a laser welding machine, comprising a base (1), characterized in that: A feeding mechanism (2) is fixedly connected to the top of the base (1) near one side. A welding arm (4) is installed on the top of the base (1), and the welding arm (4) is located beside the feeding mechanism (2). The feeding mechanism (2) includes two groups of support frames (201). A conveyor belt (202) is installed between the two groups of support frames (201). A plurality of through holes are formed on the surface of the conveyor belt (202). A negative pressure chamber (203) located inside the conveyor belt (202) is fixedly connected between the two groups of support frames (201). The top of the negative pressure chamber (203) is slidably sleeved on the outer wall of the conveyor belt (202). An air inlet (204) is formed at the position where the top of the negative pressure chamber (203) contacts the conveyor belt (202). A plurality of first negative pressure fans (205) are fixedly installed on the inner wall of the negative pressure chamber (203). The first negative pressure fans (205) are located directly below the air inlet (204). One air outlet (206) is formed on each side of the negative pressure chamber (203).

2. The fully automatic loading and unloading mechanism of a laser welding machine according to claim 1, wherein: A plurality of second negative pressure fans (207) are fixedly installed on each side of the negative pressure chamber (203), and the second negative pressure fans (207) are respectively aligned with the two air outlets (206).

3. The fully automatic loading and unloading mechanism of a laser welding machine according to claim 1, characterized in that: Filter cotton (208) is fixedly connected to the inner wall of the negative pressure chamber (203) corresponding to the air outlet, and activated carbon (209) is arranged on the inner wall of the negative pressure chamber (203).

4. The fully automatic loading and unloading mechanism of a laser welding machine according to claim 1, characterized in that: A collection mechanism (3) is arranged above the two groups of support frames (201). The collection mechanism (3) includes a guide plate (301), and the guide plate (301) is rotatably connected to the side wall of one support frame (201).

5. The fully automatic loading and unloading mechanism of a laser welding machine according to claim 1, characterized in that: A connecting plate (302) is fixedly connected to the side wall of the other support frame (201). A sliding frame (303) is fixedly connected to one side of the top of the connecting plate (302). A push rod (304) is slidably sleeved on the outer wall of the sliding frame (303). The top of the push rod (304) is rotatably connected to a clamping plate (305), and the clamping plate (305) is slidably sleeved on the bottom end of the guide plate (301).

6. The full-automatic loading and unloading mechanism of a laser welding machine according to claim 5, characterized in that: A plurality of limit teeth (306) are fixedly connected to the top of the connecting plate (302). The plurality of limit teeth (306) are located beside the sliding frame (303). A limit arm (307) is rotatably connected to the side wall of the push rod (304). The limit arm (307) is engaged with the limit teeth (306), and a torsion spring is arranged at the connection of the limit arm (307) and the push rod (304).

7. The fully automatic loading and unloading mechanism of a laser welding machine according to claim 1, characterized in that: A collection box (308) is fixedly connected to the top of the base (1), and the collection box (308) is located beside the feeding mechanism (2) and the welding arm (4).

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