Positioning mechanism for high-power hot forging and upsetting welding machine

Abstract

The utility model discloses a positioning mechanism for a high-power hot forging upsetting fusion splicer, which comprises a track workpiece and a mounting table for supporting the positioning mechanism, a pressing oil cylinder connected with the mounting table is arranged above the positioning mechanism, the bottom of the pressing oil cylinder is connected with a static clamp mechanism, a workpiece lifter is arranged on the left side of the mounting table, and the workpiece lifter is arranged on the right side of the mounting table. A mounting block fixed to the top of the mounting table is arranged between the workpiece lifter and the positioning mechanism, and symmetrically-arranged workpiece guiders are mounted on the mounting block. When the rail workpiece moves, under the support of the two groups of guide wheels, the rail workpiece can be prevented from shaking leftwards and rightwards, and in the welding process, the two groups of positioning wheels and the top electrode apply external force to the rail workpiece, so that the stability of the workpiece in the welding process is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioning, in particular to a positioning mechanism for a high-power hot forging and upsetting welding machine. Background Art

[0002] Many conductive materials can be welded by heating them to their melting points or even boiling points. The welding principle is to convert electrical energy into heat energy (such as the electric furnace in a steel mill), continuously heat the materials to be welded at the welding position, and when the temperature at this position rises to the melting point of the material, apply an upsetting force to this position. This external force can be designed to apply multiple forces with different intervals and upsetting forces according to the process requirements. Under the action of multiple external upsetting forces, two materials are permanently welded together.

[0003] When the existing welding track positioning tooling is in use, most of them are single clamping tooling for clamping workpieces, and the tooling cannot be adjusted separately for the workpieces. When the welded workpiece is relatively long, the operator needs to remove the bolts connecting the bottom of the track positioning tooling and the welding machine, and then disassemble and replace the track positioning tooling, which is rather troublesome and affects the welding efficiency of the workpiece. Summary of the Utility Model

[0004] According to the above technical problems to be solved, a positioning mechanism for a high-power hot forging and upsetting welding machine is provided.

[0005] To achieve the above object, the utility model discloses a positioning mechanism for a high-power hot forging and upsetting welding machine, which includes a track workpiece and an installation table for supporting the positioning mechanism. A pressing oil cylinder connected to the installation table is arranged above the positioning mechanism. The bottom of the pressing oil cylinder is connected with a static fixture mechanism. A workpiece lifter is arranged on the left side of the installation table. An installation block fixed on the top of the installation table is arranged between the workpiece lifter and the positioning mechanism. Symmetrically arranged workpiece guides are installed on the installation block.

[0006] Further, the positioning mechanism includes a first positioning wheel and a second positioning wheel symmetrically distributed on both sides of the track workpiece. At least two groups of second positioning wheels are arranged and installed on a baffle. The first positioning wheel is far from the baffle, and the rear of the first positioning wheel is connected with a positioning cylinder through a connecting block. A drag chain is arranged between the connecting block and the installation table.

[0007] Furthermore, auxiliary electrodes are installed on the connecting blocks on the upper and lower sides of the first positioning wheel.

[0008] Furthermore, a clamping plate is arranged at the bottom of the static fixture mechanism. Pressing cylinders fixed on the side of the static fixture mechanism are arranged on both sides of the top of the clamping plate. The output end of the pressing cylinder is connected with the clamping plate. An electrode is fixedly installed at the bottom of the clamping plate. A pressing groove corresponding to the top contour of the track workpiece is opened at the bottom of the electrode.

[0009] Furthermore, the workpiece lifter includes a horizontally installed guide roller. The axis of the guide roller is perpendicular to the moving direction of the rail workpiece. Below the guide roller, a lifting cylinder fixed to the side of the mounting table is provided. The output end of the lifting cylinder is connected to the mounting plate at the bottom of the guide roller. Guide rods connected to the mounting plate are provided on both sides of the lifting cylinder.

[0010] Furthermore, the workpiece guide includes a movable rod connected to the mounting block. Guide wheels are installed on the movable rod. The guide wheels are horizontally installed and are located on both sides of the rail workpiece respectively.

[0011] Furthermore, a horizontally installed guide rail is provided on the center line of the mounting block. The inner side of the movable rod is clamped on the guide rail.

[0012] The beneficial effects of the present utility model compared with the prior art: The present utility model discloses a positioning mechanism for a high-power hot forging and upsetting fusion welding machine. When the rail workpiece moves, it can be prevented from shaking left and right under the support of two groups of guide wheels. During the welding process, two groups of positioning wheels and the top electrode exert an external force on the rail workpiece, further improving the stability of the workpiece during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a partial right view of the present utility model.

[0016] Figure 3 It is a partial left view of the present utility model.

[0017] Figure 4 It is a sectional view of the present utility model.

[0018] Figure 5 It is a top view of the workpiece guide of the present utility model.

[0019] In the figure: 1 is the mounting table; 2 is the positioning mechanism; 20 is the baffle; 21 is the positioning cylinder; 22 is the first positioning wheel; 23 is the auxiliary electrode; 24 is the drag chain; 25 is the connecting plate; 26 is the second positioning wheel; 3 is the pressing oil cylinder; 4 is the static fixture mechanism; 41 is the clamping plate; 42 is the pressing cylinder; 5 is the workpiece lifter; 51 is the guide roller; 52 is the lifting cylinder; 6 is the workpiece guide; 61 is the mounting block; 62 is the guide wheel; 63 is the movable rod; 64 is the guide rail; 7 is the electrode; 8 is the rail workpiece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] An embodiment of the present utility model is as Figure 1 and Figure 2 shown. Above the positioning mechanism 2, there is a pressing oil cylinder 3 connected to the installation table 1. The bottom of the pressing oil cylinder 3 is connected to a static fixture mechanism 4. On the left side of the installation table 1, there is a workpiece lifter 5. Between the workpiece lifter 5 and the positioning mechanism 2, there is an installation block 61 fixed to the top of the installation table 1. Symmetrically arranged workpiece guides 6 are installed on the installation block 61. The rail workpiece 8 enters the workpiece guides 6 through the workpiece lifter 5. Supported by the two sets of guide wheels of the workpiece guides 6, it can prevent left and right shaking during movement. During the welding process, the two sets of positioning wheels and the electrodes at the top apply an external force to the rail workpiece, further improving the stability of the workpiece during the welding process.

[0022] As Figure 2 shown, the positioning mechanism 2 includes a first positioning wheel 22 and a second positioning wheel 26 symmetrically distributed on both sides of the rail workpiece 8. Among them, at least two sets of the second positioning wheels 22 are respectively installed on both sides of the inner side of the baffle 20. The first positioning wheel 22 is far from the baffle 20 and the rear of the first positioning wheel 22 is connected to the positioning cylinder 21 through a connecting block 25. A drag chain 24 is arranged between the connecting block 25 and the installation table 1. Below the connecting block 25, there is a detachable support table fixed to the installation table. The support table can be detached and replaced with a matching height according to different specifications of the rail workpiece.

[0023] Auxiliary electrodes 23 are installed on the connecting blocks 25 on the upper and lower sides of the first positioning wheel 22.

[0024] As Figure 1 and Figure 3 shown, the bottom of the static fixture mechanism 4 is provided with a clamping plate 41. On both sides of the top of the clamping plate 41, there are pressing cylinders 42 fixed to the side of the static fixture mechanism 4. The output end of the pressing cylinder 42 is connected to the clamping plate 41. An electrode 7 is fixedly installed at the bottom of the clamping plate 41. A pressing groove corresponding to the top contour of the rail workpiece 8 is opened at the bottom of the electrode 7, further ensuring the stability of the workpiece during the welding process and improving the positioning effect.

[0025] As Figure 1 and Figure 4As shown, the workpiece lifter 5 includes a horizontally installed guide roller 51. The axis of the guide roller 51 is perpendicular to the moving direction of the track workpiece 8. Below the guide roller 51, a lifting cylinder 52 fixed to the side of the mounting table 1 is provided. The output end of the lifting cylinder 52 is connected to the mounting plate at the bottom of the guide roller 51. Guide rods connected to the mounting plate are arranged on both sides of the lifting cylinder 52. The height of the guide roller 51 is adjusted by the action of the lifting cylinder to meet the feeding operations of track workpieces of different specifications.

[0026] As Figure 1 and Figure 5 As shown, the workpiece guide 6 includes a movable rod 63 connected to a mounting block 61. Guide wheels 62 are installed on the movable rod 63. The guide wheels 62 are horizontally installed and are located on both sides of the track workpiece 8 respectively. A guide rail 64 horizontally installed is provided on the center line of the mounting block 61. The inner side of the movable rod 63 is clamped on the guide rail 64. The movable rod can move horizontally along the groove on the side of the guide rail. The mounting block is fixed to the mounting table by bolts. In the moving direction of the track workpiece, the horizontal position of the workpiece guide is adjusted to better adapt to the feeding of track workpieces of different specifications.

[0027] The working principle of this embodiment: Feeding is carried out at the workpiece lifter on the left side of the equipment, and it moves to the positioning mechanism through the workpiece guide. Horizontal positioning is achieved by pressing with two groups of positioning wheels. A corresponding welding fixture is placed on the working surface of the static fixture mechanism of the equipment, and the workpiece to be welded is installed. The pressing oil cylinder descends to press the track workpiece to achieve vertical positioning.

[0028] The following points need to be explained: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change; Second, in this article, relational terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0029] The above examples are only illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. Any design identical or similar to the present invention belongs to the protection scope of the present invention.

Claims

1. A positioning mechanism for a high-power hot forging and upsetting welding machine, comprising an orbital workpiece (8) and a mounting table (1) for supporting the positioning mechanism (2), characterized in that, Above the positioning mechanism (2), there is a pressing oil cylinder (3) connected to the mounting table (1). The bottom of the pressing oil cylinder (3) is connected to a static fixture mechanism (4). On the left side of the mounting table (1), there is a workpiece lifter (5). Between the workpiece lifter (5) and the positioning mechanism (2), there is a mounting block (61) fixed to the top of the mounting table (1). Symmetrically arranged workpiece guides (6) are installed on the mounting block (61).

2. The positioning mechanism for a high-power hot forging and upsetting fusion welding machine according to claim 1, characterized in that, The positioning mechanism (2) includes a first positioning wheel (22) and a second positioning wheel (26) symmetrically distributed on both sides of the rail workpiece (8). There are at least two groups of the second positioning wheels (26) and they are installed on the baffle (20). The first positioning wheel (22) is away from the baffle (20), and behind the first positioning wheel (22), it is connected to a positioning cylinder (21) through a connecting block (25). A drag chain (24) is arranged between the connecting block (25) and the mounting table (1).

3. The positioning mechanism for a high-power hot forging and upsetting welding machine according to claim 2, characterized in that, Auxiliary electrodes (23) are installed on the connecting blocks (25) on both the upper and lower sides of the first positioning wheel (22).

4. The positioning mechanism for a high-power hot forging and upsetting fusion welding machine according to claim 1, characterized in that, At the bottom of the static fixture mechanism (4), there is a clamping plate (41). On both sides of the top of the clamping plate (41), there are pressing cylinders (42) fixed to the side of the static fixture mechanism (4). The output ends of the pressing cylinders (42) are connected to the clamping plate (41). An electrode (7) is fixedly installed at the bottom of the clamping plate (41), and a pressing groove corresponding to the top contour of the rail workpiece (8) is opened at the bottom of the electrode (7).

5. A positioning mechanism for a high-power hot forging and upsetting welding machine according to claim 1, characterized in that, The workpiece lifter (5) includes a horizontally installed guiding roller (51). The axis of the guiding roller (51) is perpendicular to the moving direction of the rail workpiece (8). Below the guiding roller (51), there is a lifting cylinder (52) fixed to the side of the mounting table (1). The output end of the lifting cylinder (52) is connected to the mounting plate at the bottom of the guiding roller (51). Guide rods connected to the mounting plate are arranged on both sides of the lifting cylinder (52).

6. The positioning mechanism for a high-power hot forging and upsetting fusion welding machine according to claim 1, characterized in that, The workpiece guide (6) includes a movable rod (63) connected to the mounting block (61). Guide wheels (62) are installed on the movable rod (63). The guide wheels (62) are horizontally installed and are respectively located on both sides of the rail workpiece (8).

7. The positioning mechanism for a high-power hot forging and upsetting fusion welding machine according to claim 6, characterized in that, On the center line of the mounting block (61), there is a horizontally installed guide rail (64). The inner side of the movable rod (63) is clamped on the guide rail (64).

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