Novel projection welding positioning tool

Abstract

The utility model relates to the technical field of positioning tools, in particular to a novel projection welding positioning tool which comprises a pair of fixing plates and a tubular workpiece to be machined, hydraulic push rods are fixedly connected to the side faces of the fixing plates, push rods are fixedly connected to the output ends of the hydraulic push rods, a plurality of guide rods are fixedly connected to the outer sides of the push rods, and the guide rods are fixedly connected to the outer sides of the guide rods. And the outer side of the guide rod is slidably connected with an extrusion plate. According to the projection welding device, the hydraulic push rod, the push rod, the guide rod, the extrusion plate, the inclined plane of the extrusion plate, the electric push rod, the push ring, the fixing rod and the push rod are arranged in a matched mode, so that the tubular workpiece can be conveniently positioned and limited from the interior of the tubular workpiece, and projection welding on the outer side of the tubular workpiece cannot be affected; through cooperative arrangement of a push rod, an air pump, an air conveying pipe, a communicating pipe and an air spraying head, dust adhering to the inner wall of a groove of a tubular workpiece with the end provided with the groove can be conveniently blown down, the inner wall of the groove of the tubular workpiece can be conveniently welded, and the influence of the dust on welding is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a novel projection welding positioning tooling. Background Art

[0002] Projection welding is a resistance welding method in which one or more raised points are pre-machined on the mating surface of one workpiece. These points are then brought into contact with the surface of the other workpiece, heated by electrical current, and then collapsed to form welds. Projection welding is a variation of spot welding, but differs in that raised points are pre-machined on the sheet metal, or that current-concentrating surfaces or chamfers on the workpiece are used as contact points during welding. Projection welding of pipe fittings is a highly efficient resistance welding method, particularly suitable for applications requiring simultaneous welding of multiple points.

[0003] With respect to the above-mentioned related technologies, the existing pipe positioning tooling has the defect that it usually clamps and positions the outer side of the pipe fitting, which will block the welding position on the outer side of the pipe fitting and affect the projection welding of the pipe fitting. Therefore, the present utility model provides a new projection welding positioning tooling. Utility Model Content

[0004] The purpose of this application is to provide a new type of projection welding positioning tool to solve the problem in the above background technology that the outer side of the pipe is usually clamped and positioned, which will block the welding position on the outer side of the pipe and affect the projection welding of the pipe.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a new type of projection welding positioning tool, comprising a pair of fixed plates and a tubular workpiece to be processed, the side of the fixed plate is fixedly connected to a hydraulic push rod, the output end of the hydraulic push rod is fixedly connected to a push rod, the outer side of the push rod is fixedly connected to a plurality of guide rods, the outer side of the guide rod is slidably connected to an extrusion plate, one end side of the extrusion plate is provided with an inclined surface, and the side of the fixed plate is provided with a pushing component.

[0006] Preferably, the pushing assembly includes a fixing frame fixedly connected to the side of the fixing plate, an electric push rod is fixedly connected to the outer side of the fixing frame, an output end of the electric push rod is fixedly connected to a pushing ring, a plurality of fixing rods are fixedly connected to the side of the pushing ring, and one end of the fixing rod is fixedly connected to an extrusion ring adapted to the inclined surface.

[0007] Preferably, a spring is provided on the outer side of the guide rod, and both ends of the spring are fixedly connected to the outer sides of the extrusion plate and the push rod respectively.

[0008] Preferably, an air pump is provided at one end of the push rod, and a plurality of air pipes are fixedly connected to the output end of the air pump.

[0009] Preferably, one end of the air delivery pipe away from the air pump is fixedly connected to a connecting pipe, and the outer side of the connecting pipe is fixedly connected to a plurality of interconnected nozzles.

[0010] Preferably, a plurality of grooves are provided on the outer sides of both ends of the tubular workpiece, and the nozzles face the corresponding grooves.

[0011] Preferably, the bottom end of the fixing plate is fixedly connected to the supporting plate, and the bottom end of the supporting plate is fixedly connected to the bottom plate.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] In the utility model, the coordination arrangement of the hydraulic push rod, the push rod, the guide rod, the extrusion plate, the inclined surface of the extrusion plate, the electric push rod, the push ring, the fixed rod and the push rod facilitates positioning and limiting of the tubular workpiece from the inside of the tubular workpiece without affecting the projection welding on the outside of the tubular workpiece.

[0014] In the utility model, the push rod, air pump, air pipe, connecting pipe and air nozzle are coordinated to blow off the dust adhering to the inner wall of the groove of the tubular workpiece with a groove at the end, so as to facilitate welding of the inner wall of the groove of the tubular workpiece and reduce the influence of dust on welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the axial structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the axial structure from a second viewing angle of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the push rod and guide rod in the utility model;

[0019] Figure 4 It is a structural diagram of the gas delivery pipe 13, the connecting pipe and the nozzle of the utility model.

[0020] In the figure: 1. Base plate; 2. Support plate; 3. Fixed plate; 4. Fixed frame; 5. Electric push rod; 6. Push ring; 7. Fixed rod; 8. Extrusion ring; 9. Hydraulic push rod; 10. Push rod; 11. Extrusion plate; 12. Air pump; 13. Air pipe; 14. Connecting pipe; 15. Air nozzle; 16. Tubular workpiece; 17. Guide rod; 18. Spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Example 1: Reference Figure 1-4 The shown new type of projection welding positioning tool comprises a pair of fixed plates 3 and a tubular workpiece 16 to be processed, the side of the fixed plate 3 is fixedly connected with a hydraulic push rod 9, the output end of the hydraulic push rod 9 is fixedly connected with a push rod 10, the outer side of the push rod 10 is fixedly connected with a plurality of guide rods 17, the outer side of the guide rod 17 is slidably connected with an extrusion plate 11, one end side of the extrusion plate 11 is provided with an inclined surface, and the side of the fixed plate 3 is provided with a pushing component; the pushing component comprises a fixed frame 4 fixedly connected to the side of the fixed plate 3, the outer side of the fixed frame 4 is fixedly connected with an electric push rod 5, the output end of the electric push rod 5 is fixedly connected with a push ring 6, the side of the push ring 6 is fixedly connected with a plurality of fixed rods 7, and one end of the fixed rod 7 is fixedly connected with an extrusion ring 8 adapted to the inclined surface, which is convenient for squeezing and fixing the inner wall of the tubular workpiece 16 without affecting the projection welding of the outer side of the tubular workpiece 16; a spring 18 is provided on the outer side of the guide rod 17, and the two ends of the spring 18 are respectively fixedly connected to the extrusion plate 11 and the outer side of the push rod 10, so as to facilitate the resetting of the extrusion plate 11.

[0024] In this embodiment, the tubular workpiece 16 is placed between a pair of push rods 10, and the hydraulic push rod 9 is controlled to drive the push rod 10, the guide rod 17, and the extrusion plate 11 to extend into the tubular workpiece 16. The electric push rod 5 is controlled to drive the push ring 6, the fixed rod 7, and the push rod 10 to move, so that the push rod 10 squeezes the inclined surface of the extrusion plate 11, and the extrusion plate 11 moves along the guide rod 17 toward the inner wall side of the tubular workpiece 16, thereby realizing adaptive extrusion limiting of the tubular workpiece 16 by multiple extrusion plates 11, which will not affect the projection welding of the tubular workpiece 16.

[0025] Example 2: Reference Figure 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that an air pump 12 is provided at one end of the push rod 10, and the output end of the air pump 12 is fixedly connected to a plurality of air pipes 13, and the air pipes 13 are arranged as retractable hoses; the end of the air pipe 13 away from the air pump 12 is fixedly connected to a connecting pipe 14, and the outer side of the connecting pipe 14 is fixedly connected to a plurality of interconnected nozzles 15; a plurality of grooves are provided on the outer side of both ends of the tubular workpiece 16, and the nozzles 15 face the corresponding grooves to facilitate blowing off the dust adhered to the inner wall of the groove; the bottom end of the fixed plate 3 is fixedly connected to the support plate 2, and the bottom end of the support plate 2 is fixedly connected to the bottom plate 1.

[0026] In this embodiment, the air pump 12 is controlled to introduce high-pressure gas through the air delivery pipe 13 and the connecting pipe 14, and the high-pressure gas is ejected through the nozzle 15 to blow off the dust adhering to the inner wall of the groove outside the tubular workpiece 16.

[0027] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel projection welding positioning tool, comprising a pair of fixing plates (3) and a tubular workpiece (16) to be processed, characterized in that: A hydraulic push rod (9) is fixedly connected to the side of the fixed plate (3), an output end of the hydraulic push rod (9) is fixedly connected to a push rod (10), a plurality of guide rods (17) are fixedly connected to the outside of the push rod (10), an extrusion plate (11) is slidably connected to the outside of the guide rod (17), an inclined surface is provided on one end side of the extrusion plate (11), and a push assembly is provided on the side of the fixed plate (3).

2. A new projection welding positioning tool according to claim 1, characterized in that: The pushing assembly comprises a fixing frame (4) fixedly connected to the side of the fixing plate (3); an electric push rod (5) is fixedly connected to the outer side of the fixing frame (4); an output end of the electric push rod (5) is fixedly connected to a pushing ring (6); a plurality of fixing rods (7) are fixedly connected to the side of the pushing ring (6); and one end of the fixing rod (7) is fixedly connected to an extrusion ring (8) adapted to the inclined surface.

3. A new projection welding positioning tool according to claim 1, characterized in that: A spring (18) is provided on the outside of the guide rod (17), and both ends of the spring (18) are fixedly connected to the outside of the extrusion plate (11) and the push rod (10), respectively.

4. A new projection welding positioning tool according to claim 3, characterized in that: An air pump (12) is provided at one end of the push rod (10), and a plurality of air delivery pipes (13) are fixedly connected to the output end of the air pump (12).

5. A new projection welding positioning tool according to claim 4, characterized in that: One end of the air delivery pipe (13) away from the air pump (12) is fixedly connected to a connecting pipe (14), and the outer side of the connecting pipe (14) is fixedly connected to a plurality of interconnected spray heads (15).

6. A new projection welding positioning tool according to claim 5, characterized in that: A plurality of grooves are provided on the outer sides of both ends of the tubular workpiece (16), and the nozzle (15) faces the corresponding grooves.

7. A new projection welding positioning tool according to claim 1, characterized in that: The bottom end of the fixing plate (3) is fixedly connected to the support plate (2), and the bottom end of the support plate (2) is fixedly connected to the bottom plate (1).

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