Projection welding device for rectangular steel pipe and projection welding nut of automobile

Abstract

The utility model relates to the technical field of automobile rectangular steel pipe machining, and discloses a projection welding device for an automobile rectangular steel pipe and a projection welding nut, which comprises a bottom plate, a right-angle frame is mounted at the top of the bottom plate, a bearing frame is in threaded connection with the right end of the top of the bottom plate, and a workpiece is fixedly connected with the top of the bearing frame. The left side of the top of the bottom plate is fixedly connected with a bearing block, the top of the bearing block is fixedly connected with a connecting plate, the top end of the connecting plate penetrates through a workpiece and is provided with a limiting block, the right side of the limiting block is provided with a fixing clamp, and the front side of the top of the workpiece is in threaded connection with a second manual clamp. And a first manual clamp is mounted at the right end of the workpiece. According to the utility model, the nut is firstly placed on the projection welding lower electrode, the KCF insulation positioning pin is used for positioning the nut on the lower electrode, then the workpiece is placed on the nut, and the workpiece can be positioned by combining equipment parts together.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rectangular steel pipe processing, in particular to a projection welding device for an automobile rectangular steel pipe and a projection welding nut. Background Art

[0002] The projection welding device for automobile rectangular steel pipes and projection welding nuts refers to the equipment or process used to perform projection welding on rectangular steel pipes and projection welding nuts. In the process of automobile manufacturing and body processing, it is often necessary to connect rectangular steel pipes with projection welding nuts to complete the assembly and reinforcement of the body structure. Projection welding is a common welding method. It achieves a firm connection between steel pipes and nuts by welding raised nuts on the surface of rectangular steel pipes. In order to achieve this welding process, a special welding device or fixture is usually required to ensure the quality and accuracy of welding. This welding device usually includes components such as fixtures, positioning devices, and welding equipment. The fixture is used to fix and support the rectangular steel pipes and nuts to ensure their stability and accurate positioning during the welding process; the positioning device is used to ensure that the relative position and angle of the rectangular steel pipes and nuts meet the requirements; the welding equipment is used to perform welding operations, usually arc welding or other suitable welding methods. Through this welding device, high-quality and high-efficiency welding between rectangular steel pipes and projection welding nuts can be achieved to ensure the firmness and safety of the automobile body structure.

[0003] At present, in the design of sheet metal structural parts in automobiles and other fields, nuts or bolts are directly projected onto another part. In particular, in the design of various white body parts and frame structural parts of automobiles, it has been widely used to improve production efficiency and reduce labor intensity. At the same time, with the development of the automobile manufacturing industry, there are more and more types of projection welded parts, and most of them are projection welded between nuts or bolts and plates. However, sometimes special structural parts also need to be welded with nuts. According to the design method of conventional or special-shaped projection welding electrodes, the upper and lower electrodes are designed. The upper electrode cannot be pressed on the upper surface of the nut, so the projection welding of the nut cannot be completed. Therefore, a special projection welding device is required to complete the welding. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a projection welding device for automotive rectangular steel pipes and projection welding nuts, aiming to improve the problem in the prior art that the upper electrode cannot be pressed on the upper surface of the nut, so the projection welding of the nut cannot be completed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a projection welding device for automobile rectangular steel pipes and projection welding nuts, comprising a base plate, a right-angle frame is installed on the top of the base plate, a bearing frame is threadedly connected to the top right end of the base plate, the top of the bearing frame is fixedly connected to a workpiece, a bearing block is fixedly connected to the top left of the base plate, the top of the bearing block is fixedly connected to a connecting plate, the top of the connecting plate passes through the workpiece and is installed with a limiting block, and a fixing clamp is installed on the right side of the limiting block.

[0006] As a further description of the above technical solution:

[0007] The top front side of the workpiece is threadedly connected with a second manual clamp, and the right end of the workpiece is installed with a first manual clamp.

[0008] As a further description of the above technical solution:

[0009] A connecting end is installed on the rear side of the workpiece, and the workpiece is fixedly connected to a fixing shell via the connecting end.

[0010] As a further description of the above technical solution:

[0011] A top plate is installed on the top of the workpiece, and a driving device is fixedly connected to the bottom of the top plate.

[0012] As a further description of the above technical solution:

[0013] The end of the driving device is fixedly connected with a pressure end.

[0014] As a further description of the above technical solution:

[0015] A positioning nut is arranged at the bottom of the pressure end, and a lower electrode is arranged at the bottom of the positioning nut.

[0016] As a further description of the above technical solution:

[0017] An insulating positioning pin is arranged at the bottom of the lower electrode.

[0018] As a further description of the above technical solution:

[0019] A workpiece is arranged at the bottom of the insulating positioning pin.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the nut is first placed on the projection welding lower electrode, and the nut is positioned by a KCF insulating positioning pin on the lower electrode, and then the workpiece is placed on the nut. The positioning of the workpiece requires the equipment parts to be combined together to complete the positioning.

[0022] 2. In the utility model, the manual clamp assembly completes the front and rear positioning of the workpiece, and the manual clamp assembly completes the left and right positioning of the workpiece, so that the hole on the workpiece can correspond to the nut hole. After the positioning is completed, the upper electrode is pressed down for welding, and the welding of the nut is completed at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A stereoscopic diagram of a projection welding device for a rectangular steel pipe and a projection welding nut for an automobile proposed by the utility model;

[0024] Figure 2 The utility model is a cross-sectional view of a projection welding device for a rectangular steel pipe and a projection welding nut for an automobile.

[0025] Legend:

[0026] 1. Bottom plate; 2. Carrying block; 3. Limit block; 4. Connecting plate; 5. Lower electrode; 6. Fixing clamp; 7. Right angle bracket; 8. Connecting end; 9. Fixing shell; 10. Carrying frame; 11. Workpiece; 12. Nut; 13. First manual clamp; 14. Second manual clamp; 15. Driving device; 16. Pressure end; 17. Top plate; 18. Insulating positioning pin. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a projection welding device for a rectangular steel pipe of an automobile and a projection welding nut, comprising a bottom plate 1, a right-angle frame 7 is installed on the top of the bottom plate 1, a bearing frame 10 is threadedly connected to the right end of the top of the bottom plate 1, a workpiece 11 is fixedly connected to the top of the bearing frame 10, a bearing block 2 is fixedly connected to the top of the bottom plate 1, a connecting plate 4 is fixedly connected to the top of the bearing block 2, the top of the connecting plate 4 passes through the workpiece 11 and is installed with a limiting block 3, and a fixing clamp 6 is installed on the right side of the limiting block 3; a second manual clamp 14 is threadedly connected to the front side of the top of the workpiece 11, and a first manual clamp 13 is installed on the right end of the workpiece 11; a connecting end 8 is installed on the rear side of the workpiece 11, and the workpiece 11 is fixedly connected to a fixing shell 9 through the connecting end 8;

[0029] Specifically, during the welding process of the nut 12, the nut 12 needs to be placed on the projection welding lower electrode 5 first; in order to ensure the accurate position of the nut 5, we use KCF insulating locating pins 18 to position it; the locating pins can stably fix the nut to ensure its stability during the welding process; next, place the workpiece 11 to be welded on the nut 5; at this time, the positioning work of the workpiece 11 requires the cooperation of multiple components, including the equipment component connecting plate 4, the fixing clamp 6, the right-angle frame 7, the connecting end 8, the fixing shell 9, the supporting frame 10, the first manual clamp 13 and the second manual clamp 14.

[0030] Reference Figure 1 and Figure 2 A top plate 17 is installed on the top of the workpiece 11, and a driving device 15 is fixedly connected to the bottom of the top plate 17; a pressure end 16 is fixedly connected to the end of the driving device 15; a positioning nut 12 is provided at the bottom of the pressure end 16, and a lower electrode 5 is provided at the bottom of the positioning nut 12;

[0031] Specifically, through the coordinated action of these components, the precise position of the workpiece 11 during the welding process can be ensured; after completing the positioning of the workpiece 11, we need to use manual clamps 11 and 13 components to respectively complete the front, back, left and right positioning of the workpiece 11; in this way, the hole on the workpiece 11 can accurately correspond to the nut hole, preparing for subsequent welding operations.

[0032] Reference Figure 1 and Figure 2 , an insulating positioning pin 18 is provided at the bottom of the lower electrode 5; a workpiece 11 is provided at the bottom of the insulating positioning pin 18;

[0033] Specifically, after this series of operations are completed, the entire nut welding process is successfully completed; in summary, the nut welding process is divided into several steps: first, the positioning of the nut 12, then the positioning of the workpiece 11, and finally the welding process; in this process, the various components and the manual clamp assembly jointly ensure the accuracy and stability of the welding.

[0034] Working principle: During the welding of the nut 12, the nut 12 needs to be placed on the projection welding lower electrode 5 first; in order to ensure the accurate position of the nut 5, we use the KCF insulating positioning pin 18 to position it; the positioning pin can stably fix the nut to ensure its stability during the welding process; next, place the workpiece 11 to be welded on the nut 5; at this time, the positioning of the workpiece 11 requires the coordination of multiple components, including the equipment component connecting plate 4, the fixing clamp 6, the right angle frame 7, the connecting end 8, the fixing shell 9, the carrier frame 10, the first manual clamp 13 and the second manual clamp 14; through the coordinated action of these components, the precise position of the workpiece 11 during the welding process can be ensured; after completing the positioning of the workpiece 11, we need to use the manual clamps 11 and 13 components to The front, back, left and right positioning of the workpiece 11 are completed respectively; in this way, the hole on the workpiece 11 can accurately correspond to the nut hole, preparing for the subsequent welding operation; after the positioning is completed, the upper electrode will press down to weld; in this process, the upper electrode will firmly connect the nut 5 and the workpiece 11 together, thereby completing the welding of the nut 5; after this series of operations are completed, the entire nut welding process is successfully completed; in summary, the nut welding process is divided into several steps: first, the positioning of the nut 12, then the positioning of the workpiece 11, and finally the welding process; in this process, various components and manual clamp assemblies jointly ensure the accuracy and stability of welding, and finally complete the connection between the nut 5 and the workpiece 11; this welding method has been widely used in many fields, providing a reliable connection solution for various projects.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A projection welding device for a rectangular steel pipe and a projection welding nut for an automobile, comprising a base plate (1), characterized in that: A right-angle frame (7) is installed on the top of the base plate (1); a support frame (10) is threadedly connected to the right end of the top of the base plate (1); a workpiece (11) is fixedly connected to the top of the support frame (10); a support block (2) is fixedly connected to the left side of the top of the base plate (1); a connecting plate (4) is fixedly connected to the top of the support block (2); the top of the connecting plate (4) passes through the workpiece (11) and is installed with a limit block (3); a fixing clamp (6) is installed on the right side of the limit block (3).

2. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 1, characterized in that: A second manual clamp (14) is threadedly connected to the top front side of the workpiece (11), and a first manual clamp (13) is installed at the right end of the workpiece (11).

3. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 2, characterized in that: A connecting end (8) is installed on the rear side of the workpiece (11), and the workpiece (11) is fixedly connected to a fixing shell (9) via the connecting end (8).

4. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 3, characterized in that: A top plate (17) is installed on the top of the workpiece (11), and a driving device (15) is fixedly connected to the bottom of the top plate (17).

5. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 4, characterized in that: The end of the driving device (15) is fixedly connected to a pressure end (16).

6. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 5, characterized in that: A positioning nut (12) is provided at the bottom of the pressure end (16), and a lower electrode (5) is provided at the bottom of the positioning nut (12).

7. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 6, characterized in that: An insulating positioning pin (18) is provided at the bottom of the lower electrode (5).

8. The projection welding device for a rectangular steel pipe and a projection welding nut for an automobile according to claim 7, characterized in that: A workpiece (11) is arranged at the bottom of the insulating positioning pin (18).

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