Laser welding system for automobile parts

Abstract

The invention relates to the technical field of welding, and discloses an automobile part laser welding system which comprises a machining base, a lifting rod is fixedly connected to the upper surface of the machining base, a lifting plate is fixedly connected to the upper end of the lifting rod, and a power connecting mechanism is arranged in the middle of the upper surface of the lifting plate. Clamping mechanisms are arranged at the two ends of the upper surface of the lifting plate, welding mechanisms and polishing mechanisms are arranged on the upper surface of the machining base, the two welding mechanisms and the two polishing mechanisms are arranged on the two sides of the upper surface of the machining base, and an anti-collision beam body is arranged on the upper surface of the machining base; a mounting block is arranged on the upper surface of the anti-collision beam body; before welding, the upper surface of the anti-collision beam body and the lower surface of the mounting block are ground at the same time through the upper grinding disc and the lower grinding disc, the defects of uneven grinding and angle deviation possibly occurring in the welding process are reduced, and therefore the overall welding quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and in particular provides a laser welding system for automobile parts. Background Art

[0002] Laser welding machines utilize a high-intensity laser beam as a heat source, enabling precise and rapid welding. Laser welding is commonly used in automotive manufacturing for welding structural parts, exhaust system components, and door frames due to its high efficiency, high weld strength, and excellent weld appearance.

[0003] The patent with announcement number CN111195793A discloses a new energy vehicle anti-collision beam welding mechanism, including a base, a fixed bottom plate, a welding device, a main body fixing device, an anti-collision beam, a bending fixing device, a connecting beam fixing device and a PLC control cabinet. An electromagnetic guide rail is provided at the upper edge of the base, and a welding device is provided on the electromagnetic guide rail through a slider. A main body fixing device is provided under the main body, a bending fixing device is provided under the bending part, a connecting beam fixing device is provided under the connecting beam, and a PLC control cabinet is provided above the base; the present invention can control the displacement of the welding gun for welding through the adjustment welding frame of the welding device, thereby improving the welding speed and efficiency. The main body, the bending part and the connecting beam can be fixed respectively through the main body fixing device, the bending fixing device and the connecting beam fixing device, thereby improving the fixing stability and preventing the problem of excessive welds.

[0004] After improving the welding mechanism of the automobile anti-collision beam, this application can fix the main body, the bending part and the connecting beam respectively through the main body fixing device, the bending part fixing device and the connecting beam fixing device, thereby improving the fixing stability and preventing the problem of excessive welds; however, the device does not have a device for grinding the anti-collision beam before welding. Before welding, the oxide layer or rust on the welding surface of automobile parts needs to be ground. Through grinding, defects that may occur during the welding process, such as pores, inclusions, etc., can be reduced, thereby improving the overall quality of the welding. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser welding system for automobile parts, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser welding system for automotive parts, comprising a processing base, the upper surface of the processing base is fixedly connected to a lifting rod, the upper end of the lifting rod is fixedly connected to a lifting plate, a power connection mechanism is provided in the middle of the upper surface of the lifting plate, and clamping mechanisms are provided at both ends of the upper surface of the lifting plate, the upper surface of the processing base is provided with a welding mechanism and a grinding mechanism, and two welding mechanisms and grinding mechanisms are provided on both sides of the upper surface of the processing base, the upper surface of the processing base is provided with an anti-collision beam body, the upper surface of the anti-collision beam body is provided with a mounting block, the grinding mechanism is used to grind the inclined upper surface of the anti-collision beam body, and the grinding mechanism is also used to grind the inclined lower surface of the mounting block, so as to achieve the effect of grinding the inclined surface before welding, and the welding mechanism can achieve the effect of rotating the welding mounting block around during the welding process.

[0007] Preferably, the grinding mechanism includes a grinding rotating rod fixedly connected to the upper surface of the processing base, the upper end of the grinding rotating rod is rotatably connected to the first connecting rod, one end of the first connecting rod is fixedly connected to the grinding frame, the interior of the grinding frame is fixedly connected to the grinding motor, the output shaft of the grinding motor is fixedly connected to the third trapezoidal gear, the interior of the grinding frame is rotatably connected to the first rotating rod and the second rotating rod, the outer surface of the first rotating rod is fixedly connected to the upper grinding disk and the first trapezoidal gear, the outer surface of the second rotating rod is fixedly connected to the lower grinding disk and the second trapezoidal gear, the first trapezoidal gear and the third trapezoidal gear are meshed and connected, and the third trapezoidal gear and the second trapezoidal gear are meshed and connected.

[0008] Preferably, the welding mechanism includes a rotating disk rotatably connected to the upper surface of the processing base, the upper surface of the rotating disk is fixedly connected to a first telescopic rod, the upper surface of the processing base is fixedly connected to a second fixed rod, the upper end of the second fixed rod is rotatably connected to a card joint, the top end of the first telescopic rod is rotatably connected to a rotating head, one side of the rotating head is fixedly connected to the second telescopic rod, and the inside of the second telescopic rod is fixedly connected to a welding head.

[0009] Preferably, the power connection mechanism includes a frame fixedly connected to the upper surface of the lifting plate, a power motor is fixedly connected to the interior of the frame, a first gear is fixedly connected to the output shaft of the power motor, and the upper surface of the lifting plate is rotatably connected to the second gear.

[0010] Preferably, the clamping mechanism includes a supporting block fixedly connected to the upper surface of the lifting plate, the interior of the supporting block is fixedly connected to the first fixed rod, the outer surface of the first fixed rod is slidably connected to the movable clamping plate, the upper surface of the lifting plate is fixedly connected to the fixed block, the interior of the fixed block is slidably connected to the pushing rod, one end of the two pushing rods is fixedly connected to the single-sided rack, one end of the other pushing rod is fixedly connected to the double-sided rack, the other end of the pushing rod is fixedly connected to a double-port connecting head, the internal rotation of the double-port connecting head is connected to the second connecting rod, the movable clamping plate is rotatably connected to the second connecting rod, and the double-port connecting head and the movable clamping plate are connected by the second connecting rod.

[0011] Preferably, the first gear is meshed and connected with the double-sided rack, the double-sided rack is meshed and connected with the second gear, and the second gear is meshed and connected with the single-sided rack.

[0012] Preferably, a hydraulic rod is fixedly connected to the upper surface of the processing base, one end of the hydraulic rod is fixedly connected to a pressure plate, the anti-collision beam body is arranged on the upper surface of the processing base, the lower grinding disc is parallel to the upper surface of the anti-collision beam body, and the upper grinding disc is parallel to the lower surface of the mounting block.

[0013] Preferably, the anti-collision beam body is clamped inside the movable clamping plate, and the mounting block is placed on the upper end of the clamping joint and the processing base, and the heights of the lifting rod, the grinding rotating rod and the first telescopic rod are all adjustable.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention fixes the anti-collision beam body and the mounting block through the provided clamping mechanism and the power connection mechanism, and then starts the grinding motor to drive the third trapezoidal gear to rotate. When the third trapezoidal gear rotates, it drives the first trapezoidal gear and the second trapezoidal gear to rotate. At the same time, the first trapezoidal gear and the second trapezoidal gear drive the upper grinding disc and the lower grinding disc to rotate through the first rotating rod and the second rotating rod, so that the upper surface of the anti-collision beam body and the lower surface of the mounting block can be simultaneously ground by the provided upper grinding disc and the lower grinding disc before welding, thereby reducing the defects of uneven grinding and angle deviation that may occur during welding, thereby improving the overall quality of welding.

[0016] 2. The present invention drives the welding mechanism to rotate by setting a rotating disk. During the welding process, the rotating head and the second telescopic rod are used to adjust the position and angle of the welding head. When the rotating disk moves in a circular motion, the welding mounting block can be welded around. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a laser welding system for automotive parts proposed by the present invention;

[0018] Figure 2 This is a cross-sectional view of the grinding structure of a laser welding system for automotive parts proposed by the present invention;

[0019] Figure 3 This is an exploded view of a laser welding system for automotive parts proposed by the present invention;

[0020] Figure 4 For the present invention Figure 3 A magnified view of point A;

[0021] Figure 5 For the present invention Figure 3 Enlarged view of point B;

[0022] Figure 6 This is a schematic diagram of the welding structure of a laser welding system for automotive parts proposed by the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of point C.

[0024] Legend:

[0025] 1. Processing base; 101. Hydraulic rod; 102. Anti-collision beam body; 103. Mounting block; 104. Lifting rod; 105. Lifting plate; 106. Grinding rotating rod; 107. First connecting rod; 108. Rotating disk; 109. Pressing plate; 2. Clamping mechanism; 201. Support block; 202. Fixed block; 203. Push rod; 204. Single-sided rack; 205. Double-sided rack; 206. First fixed rod; 207. Mobile clamping plate; 208. Second connecting rod; 209. Double-port connector; 3. Power connection mechanism; 301 , frame; 302, power motor; 303, first gear; 304, second gear; 4, welding mechanism; 401, second fixed rod; 402, card joint; 403, first telescopic rod; 404, rotating head; 405, second telescopic rod; 406, welding head; 5, grinding mechanism; 500, grinding frame; 501, grinding motor; 502, first rotating rod; 503, second rotating rod; 504, upper grinding disc; 505, lower grinding disc; 506, first trapezoidal gear; 507, third trapezoidal gear; 508, second trapezoidal gear. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figure 1-Figure 7 The laser welding system for automobile parts shown in the figure includes a processing base 1, the upper surface of the processing base 1 is fixedly connected with a lifting rod 104, the upper end of the lifting rod 104 is fixedly connected with a lifting plate 105, a power connection mechanism 3 is provided in the middle of the upper surface of the lifting plate 105, and clamping mechanisms 2 are provided at both ends of the upper surface of the lifting plate 105. The upper surface of the processing base 1 is provided with a welding mechanism 4 and a grinding mechanism 5, and two welding mechanisms 4 and grinding mechanisms 5 are provided on both sides of the upper surface of the processing base 1, the upper surface of the processing base 1 is provided with an anti-collision beam body 102, and the upper surface of the anti-collision beam body 102 is provided with a mounting block 103, the grinding mechanism 5 is used to grind the inclined upper surface of the anti-collision beam body 102, and the grinding mechanism 5 is also used to grind the inclined lower surface of the mounting block 103, so as to achieve the effect of grinding the inclined surface before welding, and the welding mechanism 4 is used to rotate the welding mounting block 103 during the welding process.

[0029] The grinding mechanism 5 includes a grinding rotating rod 106 fixedly connected to the upper surface of the processing base 1, the upper end of the grinding rotating rod 106 is rotatably connected to the first connecting rod 107, one end of the first connecting rod 107 is fixedly connected to the grinding frame 500, the interior of the grinding frame 500 is fixedly connected to the grinding motor 501, the output shaft of the grinding motor 501 is fixedly connected to the third trapezoidal gear 507, the interior of the grinding frame 500 is rotatably connected to the first rotating rod 502 and the second rotating rod 503, the outer surface of the first rotating rod 502 is fixedly connected to the upper grinding disc 504 and the first trapezoidal gear 506, the outer surface of the second rotating rod 503 is fixedly connected to the lower grinding disc 505 and the second trapezoidal gear 508, the first trapezoidal gear 506 and the third trapezoidal gear 507 are meshed and connected, and the third trapezoidal gear 507 and the second trapezoidal gear 508 are meshed and connected.

[0030] Furthermore, when the grinding motor 501 is started, the grinding motor 501 drives the third trapezoidal gear 507 to rotate. When the third trapezoidal gear 507 rotates, it drives the first trapezoidal gear 506 and the second trapezoidal gear 508 to rotate. At the same time, the first trapezoidal gear 506 and the second trapezoidal gear 508 drive the upper grinding disc 504 and the lower grinding disc 505 to rotate through the first rotating rod 502 and the second rotating rod 503, so that before welding, the upper surface of the anti-collision beam body 102 and the lower surface of the mounting block 103 can be simultaneously ground by the set upper grinding disc 504 and the lower grinding disc 505, thereby reducing the defects of uneven grinding and angle deviation that may occur during the welding process, thereby improving the overall quality of welding.

[0031] The welding mechanism 4 includes a rotating disk 108 rotatably connected to the upper surface of the processing base 1, the upper surface of the rotating disk 108 is fixedly connected to the first telescopic rod 403, the upper surface of the processing base 1 is fixedly connected to the second fixed rod 401, the upper end of the second fixed rod 401 is rotatably connected to the clamping joint 402, the top end of the first telescopic rod 403 is rotatably connected to the rotating head 404, one side of the rotating head 404 is fixedly connected to the second telescopic rod 405, and the inside of the second telescopic rod 405 is fixedly connected to the welding head 406.

[0032] Furthermore, during the welding process, the rotating head 404 and the second telescopic rod 405 are used to adjust the position and angle of the welding head 406. When the rotating disk 108 performs a circular motion, the four sides of the welding mounting block 103 can be welded.

[0033] The power connection mechanism 3 includes a frame 301 fixedly connected to the upper surface of the lifting plate 105, a power motor 302 is fixedly connected to the interior of the frame 301, a first gear 303 is fixedly connected to the output shaft of the power motor 302, and the upper surface of the lifting plate 105 is rotatably connected to the second gear 304. The clamping mechanism 2 includes a support block 201 fixedly connected to the upper surface of the lifting plate 105, a first fixed rod 206 is fixedly connected to the interior of the support block 201, and a movable clamping plate 207 is slidably connected to the outer surface of the first fixed rod 206. The upper surface of the lifting plate 105 is fixedly connected to the fixed block 202, and the fixed block 202 is slidably connected to the push rod 203, one end of the two push rods 203 is fixedly connected to the single-sided rack 204, one end of the other push rod 203 is fixedly connected to the double-sided rack 205, the other end of the push rod 203 is fixedly connected to the double-mouth connector 209, the internal rotation of the double-mouth connector 209 is connected to the second connecting rod 208, the movable clamping plate 207 is rotatably connected to the second connecting rod 208, and the double-mouth connector 209 and the movable clamping plate 207 are connected through the second connecting rod 208, the first gear 303 is meshed with the double-sided rack 205, the double-sided rack 205 is meshed with the second gear 304, and the second gear 304 is meshed with the single-sided rack 204.

[0034] Furthermore, when the power motor 302 is started, the power motor 302 drives the double-sided rack 205 to move through the first gear 303 fixed on the output, and at the same time, the double-sided rack 205 drives the single-sided rack 204 to move in the opposite direction through the second gear 304 engaged, thereby achieving the effect of pulling the push rod 203 inward. When the push rod 203 moves inward, it will pull one end of the second connecting rod 208 inward, and then one end of the second connecting rod 208 will pull the movable clamping plate 207 toward the middle, so that the movable clamping plate 207 will fix and clamp the mounting block 103.

[0035] The upper surface of the processing base 1 is fixedly connected to a hydraulic rod 101, and one end of the hydraulic rod 101 is fixedly connected to a clamping plate 109. The anti-collision beam body 102 is arranged on the upper surface of the processing base 1, and the lower grinding disc 505 is parallel to the upper surface of the anti-collision beam body 102, and the upper grinding disc 504 is parallel to the lower surface of the mounting block 103. The anti-collision beam body 102 is clamped inside the movable clamping plate 207, and the mounting block 103 is placed on the upper end of the clamping joint 402 and the processing base 1. The heights of the lifting rod 104, the grinding rotating rod 106, and the first telescopic rod 403 are all adjustable.

[0036] Furthermore, after placing the anti-collision beam body 102 on the upper surface of the processing base 1, the hydraulic rod 101 is started to clamp and fix the anti-collision beam body 102 through the clamping plate 109. By making the lower grinding disc 505 parallel to the upper surface of the anti-collision beam body 102 and the upper grinding disc 504 parallel to the lower surface of the mounting block 103, the defects of uneven grinding and angle deviation that occur during welding can be corrected, thereby improving the overall quality of welding.

[0037] Working principle: When using the device again, first place the anti-collision beam body 102 above the processing base 1 and the clamping joint 402, then start the hydraulic rod 101 to clamp the anti-collision beam body 102 through the clamping plate 109, then put the mounting block 103 into the movable clamping plate 207, clamp the mounting blocks 103 on both sides of the lifting plate 105 through the movable clamping plate 207, and then move the grinding mechanism 5 between the anti-collision beam body 102 and the mounting block 103, then start the grinding motor 501 to drive the third trapezoidal gear 507 to rotate, and when the third trapezoidal gear 507 rotates, it drives the first trapezoidal gear 506 and the second trapezoidal gear 508 to rotate, and at the same time, the first trapezoidal gear 506 and the second trapezoidal gear 508 drive the upper grinding through the first rotating rod 502 and the second rotating rod 503. The grinding disc 504 and the lower grinding disc 505 rotate, so that before welding, the upper surface of the anti-collision beam body 102 and the lower surface of the mounting block 103 can be simultaneously ground by the set upper grinding disc 504 and the lower grinding disc 505, reducing the defects of uneven grinding and angle deviation that may occur during welding, thereby improving the overall quality of welding. After grinding is completed, the grinding mechanism 5 is rotated away from between the anti-collision beam body 102 and the mounting block 103, and the lifting rod 104 is retracted to make the lifting plate 105 drive the mounting block 103 to move downward, so that the mounting block 103 and the anti-collision beam body 102 are in contact and fit, and then the anti-collision beam body 102 and the mounting block 103 are welded by the set welding mechanism 4. During welding, the four sides of the mounting block 103 can be welded by rotating the rotating disk 108.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding system for automobile parts, comprising a processing base (1), characterized in that: The upper surface of the processing base (1) is fixedly connected to a lifting rod (104), the upper end of the lifting rod (104) is fixedly connected to a lifting plate (105), a power connection mechanism (3) is arranged in the middle of the upper surface of the lifting plate (105), and clamping mechanisms (2) are arranged at both ends of the upper surface of the lifting plate (105), the upper surface of the processing base (1) is provided with a welding mechanism (4) and a grinding mechanism (5), and two welding mechanisms (4) and grinding mechanisms (5) are arranged on both sides of the upper surface of the processing base (1), the upper surface of the processing base (1) is provided with an anti-collision beam body (102), and the upper surface of the anti-collision beam body (102) is provided with a mounting block (103); The grinding mechanism (5) is used to grind the inclined upper surface of the anti-collision beam body (102), and the grinding mechanism (5) is also used to grind the inclined lower surface of the mounting block (103), so as to achieve the effect of grinding the inclined surface before welding; The welding mechanism (4) is used to rotate the periphery of the welding mounting block (103) during the welding process.

2. A laser welding system for automobile parts according to claim 1, characterized in that: The grinding mechanism (5) comprises a grinding rotating rod (106) fixedly connected to the upper surface of the processing base (1); the upper end of the grinding rotating rod (106) is rotatably connected to a first connecting rod (107); one end of the first connecting rod (107) is fixedly connected to a grinding frame (500); a grinding motor (501) is fixedly connected inside the grinding frame (500); a third trapezoidal gear (507) is fixedly connected to the output shaft of the grinding motor (501); and the inside of the grinding frame (500) A first rotating rod (502) and a second rotating rod (503) are rotatably connected, an upper grinding disc (504) and a first trapezoidal gear (506) are fixedly connected to the outer surface of the first rotating rod (502), a lower grinding disc (505) and a second trapezoidal gear (508) are fixedly connected to the outer surface of the second rotating rod (503), the first trapezoidal gear (506) and a third trapezoidal gear (507) are meshingly connected, and the third trapezoidal gear (507) and the second trapezoidal gear (508) are meshingly connected.

3. The laser welding system for automobile parts according to claim 1, characterized in that: The welding mechanism (4) comprises a rotating disk (108) rotatably connected to the upper surface of a processing base (1); a first telescopic rod (403) is fixedly connected to the upper surface of the rotating disk (108); a second fixed rod (401) is fixedly connected to the upper surface of the processing base (1); a clamping joint (402) is rotatably connected to the upper end of the second fixed rod (401); a rotating head (404) is rotatably connected to the top end of the first telescopic rod (403); a second telescopic rod (405) is fixedly connected to one side of the rotating head (404); and a welding head (406) is fixedly connected to the interior of the second telescopic rod (405).

4. The laser welding system for automobile parts according to claim 1, characterized in that: The power connection mechanism (3) comprises a frame (301) fixedly connected to the upper surface of the lifting plate (105); a power motor (302) is fixedly connected inside the frame (301); a first gear (303) is fixedly connected to the output shaft of the power motor (302); and a second gear (304) is rotatably connected to the upper surface of the lifting plate (105).

5. The laser welding system for automobile parts according to claim 1, characterized in that: The clamping mechanism (2) comprises a support block (201) fixedly connected to the upper surface of the lifting plate (105); a first fixed rod (206) is fixedly connected inside the support block (201); a movable clamping plate (207) is slidably connected to the outer surface of the first fixed rod (206); a fixed block (202) is fixedly connected to the upper surface of the lifting plate (105); a push rod (203) is slidably connected inside the fixed block (202); one end of the two push rods (203) are fixedly connected to the lifting plate (105); A single-sided rack (204) is fixedly connected to the push rod (203), one end of the other push rod (203) is fixedly connected to the double-sided rack (205), the other end of the push rod (203) is fixedly connected to the double-mouth connector (209), the inside of the double-mouth connector (209) is rotatably connected to the second connecting rod (208), the movable clamping plate (207) is rotatably connected to the second connecting rod (208), and the double-mouth connector (209) and the movable clamping plate (207) are connected via the second connecting rod (208).

6. A laser welding system for automobile parts according to claim 4, characterized in that: The first gear (303) is meshedly connected to the double-sided rack (205), the double-sided rack (205) is meshedly connected to the second gear (304), and the second gear (304) is meshedly connected to the single-sided rack (204).

7. The laser welding system for automobile parts according to claim 2, characterized in that: A hydraulic rod (101) is fixedly connected to the upper surface of the processing base (1), one end of the hydraulic rod (101) is fixedly connected to a clamping plate (109), the anti-collision beam body (102) is arranged on the upper surface of the processing base (1), the lower grinding disc (505) is parallel to the upper surface of the anti-collision beam body (102), and the upper grinding disc (504) is parallel to the lower surface of the mounting block (103).

8. The laser welding system for automobile parts according to claim 1, characterized in that: The anti-collision beam body (102) is clamped inside the movable clamping plate (207), and the mounting block (103) is placed on the upper end of the clamping joint (402) and the processing base (1), and the heights of the lifting rod (104), the grinding rotating rod (106), and the first telescopic rod (403) are all adjustable.

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