Laser welding equipment for sheet metal machining

Abstract

Laser welding equipment for sheet metal machining relates to the technical field of welding equipment and comprises a laser welding machine body, a welding head is arranged on a welding seat of the laser welding machine body, a buffering mechanism is installed at the bottom of the welding seat, and a protective cover of a transparent structure is detachably connected to the bottom of the buffering mechanism. The laser welding equipment comprises a welding seat and a protective cover, the protective cover is movably connected with the welding seat through a positioning mechanism, the protective cover is connected to the side face of a welding head in a sleeving mode, and a smoke collecting unit used for extracting smoke in the protective cover is installed at the top of the welding seat. Therefore, the situation that the service life of the welding head is affected due to the fact that smoke is gathered in the protective cover and cannot be discharged in time is avoided, when the welding head moves, the ball rolls on the metal plate, abrasion caused by contact sliding of the protective plate and the metal plate in the prior art is reduced through the rolling arrangement, and therefore the use safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a laser welding equipment used for sheet metal processing. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source to fuse two workpieces together.

[0003] In the prior art, a patent with authorization announcement number CN 217832269 U discloses a laser welding device for sheet metal processing, including a welding device body, a movable frame is provided at the upper part of the front side of the welding device body, a welding seat is provided at the bottom of the movable frame, a welding head is connected to the bottom of the welding seat, and a processing table is provided at the lower part of the front side of the welding device body. Smoke is generated during laser welding, and the smoke is easily gathered in the cavity inside the protective component during welding. The smoke cannot be discharged in time, which is easy to have an adverse effect on the welding head. At the same time, when the welding head moves, the protective plate and the surface of the sheet metal are in sliding friction, which is easy to scratch the surface of the sheet metal. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a laser welding device for sheet metal processing, which can extract and purify the smoke in the protective cover, so as to avoid the smoke gathering in the protective cover and not being able to be discharged in time, thereby affecting the service life of the welding head. When the welding head moves, the ball rolls on the sheet metal. The rolling setting reduces the wear caused by the contact and sliding of the protective plate and the sheet metal in the prior art, thereby ensuring the safety of use and effectively solving the problems in the background technology.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A laser welding device for sheet metal processing comprises a laser welding machine body, a welding head is arranged on a welding seat of the laser welding machine body, a buffer mechanism is installed at the bottom of the welding seat, a protective cover with a transparent structure is detachably connected to the bottom of the buffer mechanism, and the protective cover is movably connected to the welding seat through a positioning mechanism, the protective cover is sleeved on the side of the welding head, and a smoke collection unit for extracting smoke inside the protective cover is installed on the top of the welding seat.

[0007] Furthermore, the buffer mechanism includes a bellows, the bellows is fixed to the bottom of the welding seat, and the welding head is arranged on the inner side of the bellows.

[0008] Furthermore, the buffer mechanism also includes a nylon velvet belt and a nylon hook belt. The nylon hook belt is arranged at the bottom of the corrugated tube, and the nylon velvet belt is arranged at the top of the protective cover. The nylon velvet belt and the nylon hook belt are cooperatively bonded.

[0009] Furthermore, the positioning mechanism includes a positioning rod and a positioning hole, the positioning rod is fixed on the top of the protective cover, the positioning hole is opened at the ear position of the welding seat, and the positioning rod is slidably connected to the positioning hole up and down.

[0010] Furthermore, the smoke collection unit includes a laser smoke purifier, an induced draft fan and a smoke extraction pipe. The smoke extraction pipe is fixed on the top of the welding seat and is connected to the inside of the corrugated pipe. The induced draft fan is connected and fixed on the top of the smoke extraction pipe. The laser smoke purifier is installed at the air outlet position of the induced draft fan. The laser smoke purifier and the induced draft fan are electrically connected to an external PLC controller.

[0011] Furthermore, it also includes balls, which are evenly arranged on the bottom of the protective cover and are rollingly connected to the protective cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the laser welding equipment for sheet metal processing has the following advantages:

[0013] 1. The smoke in the protective cover is extracted and purified through the smoke collection unit to prevent the smoke from accumulating in the protective cover and failing to be discharged in time, which will affect the service life of the welding head.

[0014] 2. When the welding head moves, the ball rolls on the sheet metal. The rolling setting reduces the wear caused by the contact and sliding between the protective plate and the sheet metal in the prior art, thereby ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional bottom structure of the utility model.

[0018] In the figure: 1 laser welding machine body, 2 welding seat, 3 smoke collection unit, 31 laser smoke purifier, 32 induced draft fan, 33 smoke extraction pipe, 4 protective cover, 5 buffer mechanism, 51 nylon velvet belt, 52 nylon hook belt, 53 bellows, 6 positioning mechanism, 61 positioning rod, 62 positioning hole, 7 ball bearing, 8 welding head. DETAILED DESCRIPTION

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0020] See also Figure 1-3 The present embodiment provides a technical solution: a laser welding device for sheet metal processing, comprising a laser welding machine body 1, a welding head 8 is arranged on a welding seat 2 of the laser welding machine body 1, a buffer mechanism 5 is installed at the bottom of the welding seat 2, a protective cover 4 with a transparent structure is detachably connected to the bottom of the buffer mechanism 5, and the protective cover 4 is movably connected to the welding seat 2 through a positioning mechanism 6, the protective cover 4 is sleeved on the side of the welding head 8, and a smoke collection unit 3 for extracting smoke inside the protective cover 4 is installed on the top of the welding seat 2.

[0021] The buffer mechanism 5 includes a bellows 53, which is fixed at the bottom of the welding seat 2, and the welding head 8 is arranged on the inner side of the bellows 53. The buffer mechanism 5 also includes a nylon velvet belt 51 and a nylon hook belt 52. The nylon hook belt 52 is arranged at the bottom of the bellows 53, and the nylon velvet belt 51 is arranged on the top of the protective cover 4. The nylon velvet belt 51 and the nylon hook belt 52 are cooperatively bonded, so that the nylon velvet belt 51 and the nylon hook belt 52 can be separated, and the protective cover 4 can be separated from the bellows 53. It is easy to disassemble and convenient for maintaining the protective cover 4.

[0022] The positioning mechanism 6 includes a positioning rod 61 and a positioning hole 62. The positioning rod 61 is fixed on the top of the protective cover 4. The positioning hole 62 is opened at the ear position of the welding seat 2. The positioning rod 61 is connected to the positioning hole 62 by sliding up and down. The protective cover 4 squeezes the bellows 53 to make the bellows 53 shrink. At the same time, the positioning rod 61 slides up and down in the positioning hole 62, ensuring the rationality of the design.

[0023] The smoke collection unit 3 includes a laser smoke purifier 31, an induced draft fan 32 and a smoke extraction pipe 33. The smoke extraction pipe 33 is fixed on the top of the welding seat 2 and is connected to the inside of the bellows 53. The induced draft fan 32 is connected and fixed on the top of the smoke extraction pipe 33. The laser smoke purifier 31 is installed at the air outlet position of the induced draft fan 32. The laser smoke purifier 31 and the induced draft fan 32 are electrically connected to an external PLC controller. The smoke generated by welding gathers in the protective cover 4. The induced draft fan 32 extracts the smoke in the protective cover 4 through the smoke extraction pipe 33. Then, the induced draft fan 32 transports the smoke to the laser smoke purifier 31 for purification, thereby avoiding the smoke from gathering in the protective cover 4 and failing to be discharged in time, thereby affecting the service life of the welding head 8.

[0024] It also includes balls 7, which are evenly arranged at the bottom of the protective cover 4. The balls 7 are rollingly connected to the protective cover 4. The welding head 8 moves to the welding position, and the balls 7 first contact the sheet metal. When the welding head 8 moves, the balls 7 roll on the sheet metal. The rolling setting reduces the wear caused by the contact and sliding of the protective plate and the sheet metal in the prior art, thereby ensuring safety in use.

[0025] The working principle of a laser welding device for sheet metal processing provided by the utility model is as follows: the welding head 8 moves to the welding position, the ball 7 first contacts the sheet metal, and then the protective cover 4 squeezes the bellows 53 to shrink the bellows 53. At the same time, the positioning rod 61 slides up and down in the positioning hole 62. When the welding head 8 moves, the ball 7 rolls on the sheet metal, and the smoke generated by welding gathers in the protective cover 4. The induced draft fan 32 extracts the smoke in the protective cover 4 through the exhaust pipe 33. Then, the induced draft fan 32 transports the smoke to the laser smoke purifier 31 for purification. When the protective cover 4 needs to be maintained, the nylon velvet belt 51 and the nylon hook belt 52 are separated, so that the protective cover 4 can be separated from the bellows 53.

[0026] It is worth noting that the laser smoke purifier 31 and the induced draft fan 32 disclosed in the above embodiments are selected and configured according to the actual application scenario.

[0027] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A laser welding device for sheet metal processing, comprising a laser welding machine body (1), a welding seat (2) of the laser welding machine body (1) being provided with a welding head (8), characterized in that: A buffer mechanism (5) is installed at the bottom of the welding seat (2); a protective cover (4) of a transparent structure is detachably connected to the bottom of the buffer mechanism (5); the protective cover (4) is movably connected to the welding seat (2) via a positioning mechanism (6); the protective cover (4) is sleeved on the side of the welding head (8); and a smoke collection unit (3) for extracting smoke from the inside of the protective cover (4) is installed at the top of the welding seat (2).

2. The laser welding equipment for sheet metal processing according to claim 1, characterized in that: The buffer mechanism (5) comprises a bellows (53), the bellows (53) is fixed to the bottom of the welding seat (2), and the welding head (8) is arranged on the inner side of the bellows (53).

3. The laser welding equipment for sheet metal processing according to claim 2, characterized in that: The buffer mechanism (5) further comprises a nylon velvet belt (51) and a nylon hook belt (52); the nylon hook belt (52) is arranged at the bottom of the corrugated tube (53); the nylon velvet belt (51) is arranged at the top of the protective cover (4); the nylon velvet belt (51) and the nylon hook belt (52) are cooperatively bonded.

4. The laser welding equipment for sheet metal processing according to claim 1, characterized in that: The positioning mechanism (6) comprises a positioning rod (61) and a positioning hole (62); the positioning rod (61) is fixed to the top of the protective cover (4); the positioning hole (62) is opened at the ear position of the welding seat (2); and the positioning rod (61) and the positioning hole (62) are connected to each other in an upward and downward sliding manner.

5. The laser welding equipment for sheet metal processing according to claim 2, characterized in that: The smoke collection unit (3) comprises a laser smoke purifier (31), an induced draft fan (32) and a smoke extraction pipe (33); the smoke extraction pipe (33) is fixed to the top of the welding seat (2) and is in communication with the interior of the bellows (53); the induced draft fan (32) is in communication with and fixed to the top of the smoke extraction pipe (33); the laser smoke purifier (31) is installed at the air outlet position of the induced draft fan (32); and the laser smoke purifier (31) and the induced draft fan (32) are both electrically connected to an external PLC controller.

6. The laser welding equipment for sheet metal processing according to claim 1, characterized in that: It also includes balls (7), which are evenly arranged on the bottom of the protective cover (4), and the balls (7) are rollingly connected to the protective cover (4).

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