Welding equipment for automobile door protection plate

Abstract

The utility model relates to welding equipment for an automobile door protection plate, which comprises a rack, a welding machine, a welding machine moving frame, a first screw rod assembly and a plurality of cross beam supports, a guide rail is arranged on the outer side of the rack, the welding machine moving frame is in an inverted U shape, the lower end of the welding machine moving frame is movably connected with the guide rail, the welding machine is movably arranged at the upper end of the welding machine moving frame, and the first screw rod assembly is arranged on the first screw rod assembly. The output end of the first lead screw assembly is connected with the lower end of the welding moving frame and drives the welding moving frame to do reciprocating linear motion along the guide rail, the multiple cross beam supports are installed on the inner side of the rack side by side at intervals, the two ends of each cross beam support are movably connected with first sliding grooves in the inner side of the rack in a clamped mode, and positioning tools capable of moving are installed on the cross beam supports. The first lead screw assembly is used for driving the welding machine on the welding machine moving frame to move, a mechanical arm does not need to be used, the equipment cost is reduced, it is guaranteed that displacement is smooth and not blocked, the distance-adjustable cross beam support is adopted to be matched with the positioning tool to lift and fix a workpiece, the workpiece is kept in the same posture for a long time, and it is guaranteed that welding precision is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to welding equipment for automobile door guard plates. Background Art

[0002] Car doors are an important part of a car. During the driving process, car doors can protect the safety of people in the car. At present, car doors are usually welded directly using a fully automated mechanical welding process during the production process. Since the door panel is composed of many parts, including handles, door panel body, frame, etc., there are many welding points, and the welding gun position needs to be adjusted during welding. The current welding equipment mostly uses a robotic arm to adjust the welding gun position. The cost of the robotic arm is high, and the welding cost is high when it is used in large quantities. Secondly, the workpiece needs to be positioned during welding to prevent biased welding. The current tooling equipment is inconvenient to use in positioning the door panel workpiece, there are too many tooling parts, and the integration is low, so it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a welding device for automobile door guard plates to address the above problems.

[0004] A welding device for automobile door guard plates comprises a frame, a welding machine, a welding machine movable frame, a first screw rod assembly and a plurality of cross beam supports. A guide rail is arranged on the outer side of the frame. The welding machine movable frame is in an inverted U shape. The lower end of the welding machine movable frame is movably connected to the guide rail. The welding machine is movably mounted on the upper end of the welding machine movable frame. The output end of the first screw rod assembly is connected to the lower end of the welding movable frame to drive it to perform reciprocating linear motion along the guide rail. A plurality of cross beam supports are installed side by side at intervals on the inner side of the frame. Both ends of the cross beam supports are movably engaged with the first slide groove on the inner side of the frame. A displaceable positioning tool is installed on the cross beam support.

[0005] Preferably, a second slide groove is provided on the upper surface of the beam support along the extension direction, and the positioning tooling includes a T-bolt, a base plate and a positioning pin, the T-head of the T-bolt is movably clamped in the second slide groove, the rod of the T-bolt movably passes through the base plate, and the positioning pin is detachably mounted on the base plate.

[0006] Preferably, a second screw rod assembly is provided on the welding machine moving frame, and the second screw rod assembly drives the welding machine to perform reciprocating linear motion.

[0007] Preferably, a triangular rubber pad is further provided at the connection between the cross beam support and the first slide groove.

[0008] Preferably, a clamping strip is provided on the side of the triangular rubber pad, and the clamping strip is clamped in the first sliding groove.

[0009] Preferably, a connecting plate is installed at the output end of the first screw rod assembly, and both ends of the connecting plate are detachably connected to the lower end of the welding movable frame by bolts.

[0010] The utility model is beneficial in that the first screw rod assembly is used to drive the displacement of the welder on the welder moving frame, without the need for a mechanical arm, thereby reducing equipment costs and ensuring smooth displacement without jamming. A crossbeam support with adjustable spacing is used in conjunction with a positioning tool to lift and fix the workpiece, so that the workpiece maintains the same posture for a long time, thereby ensuring reliable welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of a welding device for a car door guard plate according to one embodiment;

[0012] Figure 2 for Figure 1 A magnified schematic diagram of the middle part;

[0013] Figure 3 It is a three-dimensional schematic diagram of a triangular rubber pad. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0015] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] like Figures 1-2As shown, a welding device for automobile door guard plate includes a frame 1, a welding machine 2, a welding machine moving frame 3, a first screw rod assembly 4 and a plurality of cross beam supports 5. The outer side of the frame 1 is provided with a guide rail 11. The welding machine moving frame 3 is in an inverted U shape. The inverted U-shaped welding machine moving frame 3 can be used to raise the height of the welding machine 2 as a whole to prevent the welding machine 2 from colliding with the workpiece during welding. The lower end of the welding machine moving frame 3 is movably connected with the guide rail 11, the welding machine 2 is movably installed on the upper end of the welding machine moving frame 3, the output end of the first screw rod assembly 4 is connected with the lower end of the welding moving frame 3, and drives it to do reciprocating linear motion along the guide rail 11, and a plurality of cross beam supports 5 are installed side by side at intervals on the inner side of the frame 1, and the two ends of the cross beam supports 5 are movably engaged with the first slide groove 12 on the inner side of the frame 1, and a displaceable positioning tool 6 is installed on the cross beam support 5. Specifically, in this embodiment, the frame 1 adopts a frame structure with high strength, and the welding mobile frame 3 is U-shaped, and the lower end is movably connected to the outer guide rail 11 of the frame 1, so that the first screw assembly 4 can drive the welding mobile frame 3 to do reciprocating linear motion along the guide rail 11, thereby driving the overall displacement of the welding machine 2, which is extremely smooth and will not get stuck, and the mechanical arm is omitted to reduce costs. In order to adapt to workpieces of different sizes and models, we set a number of crossbeam supports 5 in the frame, and the crossbeam supports 5 and the guide rail 11 are cross-intersecting, and are arranged along the Y direction. The crossbeam supports 5 are movably connected with the first slide groove 12 on the inner side of the frame 1, so that the spacing between two adjacent crossbeam supports 5 is adjustable, which is convenient for holding workpieces of different sizes, and is more convenient to use and has a higher degree of adaptability. At the same time, we set a positioning tool 6 on the crossbeam support 5, and the positioning tool 6 is used to maintain the posture of the workpiece so that it is in the best welding position to avoid the collision between the welding gun of the welding machine 2 and the workpiece during welding.

[0018] like Figures 1-2 As shown, the upper surface of the beam support 5 is provided with a second slide groove 51 along the extension direction, and the positioning fixture 6 includes a T-bolt 61, a bottom plate 62 and a positioning pin 63. The T-head of the T-bolt 61 is movably clamped in the second slide groove 51, and the rod of the T-bolt 61 is movably penetrated through the bottom plate 62, and the positioning pin 63 is detachably mounted on the bottom plate 62. Specifically, the T-head of the T-bolt 61 is movably clamped in the second slide groove 51, and the bottom plate 62 can be locked with a nut, thereby determining the position of the entire positioning fixture 6 on the beam support 5, and the positioning pin 63 is matched and inserted into the bolt hole of the workpiece to locate and maintain the welding shape and orientation of the workpiece to prevent the workpiece from being skewed during welding.

[0019] like Figure 1As shown, the welding machine moving frame 3 is provided with a second screw assembly 31, and the second screw assembly 31 drives the welding machine 2 to do reciprocating linear motion. Specifically, the first screw assembly 4 drives the welding machine 2 to reciprocate along the X direction. In order to achieve a large-scale displacement of the welding machine 2 on the horizontal plane, we set the second screw assembly 31 on the welding machine moving frame 3 to drive the welding machine 2 to reciprocate along the Y direction. The welding machine 2 can achieve bidirectional displacement in the X direction and the Y direction, and the welding point positioning of the workpiece is more accurate.

[0020] like Figures 1 to 3 As shown, a triangular rubber pad 52 is further provided at the connection between the cross beam support 5 and the first slide groove 12. Specifically, the triangular rubber pad 52 is matched and abutted with the cross beam support 5 and the notch of the second slide groove 12 to limit the cross beam support 5 and prevent the cross beam support 5 from continuing to move along the first slide groove 12 after being vibrated after moving to the specified position.

[0021] like Figure 3 As shown, a clamping strip 521 is provided on the side of the triangular rubber pad 52, and the clamping strip 521 is clamped in the first slide groove 12. Specifically, the clamping strip 521 is embedded in the first slide groove 12 and is not easy to fall down. The triangular rubber pad 52 can be used to limit the position of the cross beam support 5 to prevent the cross beam support 5 from being vibrated and continuing to move along the first slide groove 12.

[0022] like Figure 1 As shown, a connecting plate 41 is installed at the output end of the first screw assembly 4, and the two ends of the connecting plate 41 are detachably connected to the lower end of the welding moving frame 3 by bolts. Specifically, the connecting plate 41 is arranged at the bottom of the frame 1 to prevent the connecting plate 41 from colliding with other parts of the frame 1 during the displacement process, and to ensure that the first screw assembly 4 can drive the connecting plate 41 to make reciprocating linear motion along the X direction to ensure a smooth path.

[0023] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A welding device for automobile door guard plate, characterized in that: It includes a frame, a welding machine, a welding machine mobile frame, a first screw rod assembly and a plurality of cross beam supports. A guide rail is arranged on the outer side of the frame. The welding machine mobile frame is in an inverted U shape. The lower end of the welding machine mobile frame is movably connected to the guide rail. The welding machine is movably installed on the upper end of the welding machine mobile frame. The output end of the first screw rod assembly is connected to the lower end of the welding mobile frame to drive it to perform reciprocating linear motion along the guide rail. A plurality of cross beam supports are installed side by side at intervals on the inner side of the frame. Both ends of the cross beam supports are movably connected to the first slide groove on the inner side of the frame. A displaceable positioning tool is installed on the cross beam support.

2. A welding device for automobile door guard plate according to claim 1, characterized in that: A second slide groove is provided on the upper surface of the beam support along the extension direction. The positioning tooling includes a T-bolt, a base plate and a positioning pin. The T-head of the T-bolt is movably clamped in the second slide groove. The rod of the T-bolt movably passes through the base plate. The positioning pin is detachably mounted on the base plate.

3. The welding equipment for automobile door guard plate according to claim 1, characterized in that: The welding machine moving frame is provided with a second screw rod assembly, and the second screw rod assembly drives the welding machine to perform reciprocating linear motion.

4. The welding equipment for automobile door guard plate according to claim 1, characterized in that: A triangular rubber pad is also provided at the connection between the cross beam support and the first slide groove.

5. A welding device for automobile door guard plate according to claim 4, characterized in that: A clamping strip is provided on the side of the triangular rubber pad, and the clamping strip is clamped in the first sliding groove.

6. The welding equipment for automobile door guard plate according to claim 1, characterized in that: A connecting plate is installed at the output end of the first screw rod assembly, and both ends of the connecting plate are detachably connected to the lower end of the welding movable frame through bolts.

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