Welding positioning tool clamp

Abstract

The invention discloses a welding positioning tool clamp which comprises two rotary mounting plates, positioning grooves are formed in the rotary mounting plates, outer clamping jaws are arranged on the outer sides of the positioning grooves, and the ends of the outer clamping jaws are fixed to the output ends of rotary motors at the tops of clamping air cylinders. Two sets of workpieces are turned over at the same time through the two rotary mounting plates, and workpiece clamping and fixing structures are arranged on the rotary mounting plates, so that the welding tool has double stations, welding work can be conducted on the two same workpieces at the same time, the working efficiency is improved, and the working efficiency is improved. And the outer sides of the two rotary mounting plates are provided with synchronous driving devices for driving the rotary mounting plates to rotate synchronously, the synchronous driving devices can drive the two rotary mounting plates to rotate simultaneously, the structure can be simplified, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece welding, in particular to a welding positioning fixture. Background Art

[0002] Tube-sheet welding is a process that connects steel plates and tubes through welding to achieve sealing and structural support for equipment. In the petroleum and chemical industries, it is commonly used in equipment such as chemical reactors, towers, heat exchangers, and distillation columns. In the food and pharmaceutical industries, it is often used in the manufacture of stainless steel tanks, containers, and pipelines.

[0003] The existing welding fixtures lack a flipping mechanism and have a single processing form, and cannot perform synchronous welding of different workpieces at the same time. For workpieces that need to be flipped, the welding operation is more troublesome and the construction efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding positioning fixture to solve the problems raised in the above background technology, such as the existing welding fixture lacks a flipping mechanism and has a single processing form, cannot perform synchronous welding of different workpieces at the same time, and is more cumbersome to operate for workpieces that need to be flipped during welding construction, and has low construction efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a welding positioning fixture, comprising two rotating mounting plates, each of which is provided with a positioning groove, an outer clamping jaw being provided on the outer side of the positioning groove, the end of the outer clamping jaw being fixed to the output end of the rotating motor at the top of the clamping cylinder, and a synchronous driving device being provided on the outer side of the two rotating mounting plates to drive the rotating mounting plates to rotate synchronously.

[0006] Preferably, the synchronous drive device includes a double-groove transmission wheel and two drive wheels respectively connected to the double-groove transmission wheel through belts, the two drive wheels are respectively fixedly connected to the rotating mounting plate through a rotating shaft, and the double-groove transmission wheel is fixed to the output end of the drive motor.

[0007] Preferably, the drive motor is fixed to the tooling frame via a motor bracket.

[0008] Preferably, the rotating shaft is rotatably mounted on the tooling frame via a bearing.

[0009] Preferably, an inner clamping claw is provided on the inner side of the positioning groove, and the inner clamping claw is fixed on the output end of the rotating motor on the top of the inner side of the positioning groove to clamp the cylinder.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The present invention flips two groups of workpieces at the same time through two rotating mounting plates. The rotating mounting plates are provided with a workpiece clamping and fixing structure, so that the welding tool has a double workstation, and can weld two identical workpieces at the same time, thereby improving work efficiency. The outer sides of the two rotating mounting plates are provided with a synchronous driving device that drives the rotating mounting plates to rotate synchronously. The synchronous driving device can drive the two rotating mounting plates to rotate simultaneously, which can streamline the structure and reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of the welding positioning fixture provided by the present invention;

[0013] Figure 2 A top view of the welding positioning fixture provided by the present invention;

[0014] Figure 3 for Figure 2 Cross-sectional view along direction A;

[0015] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.

[0016] In the above drawings, there are rotating mounting plate 1, outer clamping jaw 2, positioning groove 3, clamping cylinder 4, rotating motor 5, double-groove transmission wheel 6, belt 7, drive wheel 8, drive motor 9, motor bracket 10, tooling frame 11, rotating shaft 12, inner clamping jaw 13, threaded hole 14, and bolt 15. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described below in conjunction with the accompanying drawings.

[0018] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as an "exemplary" in the present invention should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete manner. Furthermore, in the embodiments of the present invention, "and / or" can mean both or either of the two.

[0019] In the embodiments of the present invention, the terms "image" and "picture" may be used interchangeably. It should be noted that, when the distinction between them is not emphasized, their intended meanings are the same. The terms "of," "corresponding," and "corresponding" may be used interchangeably. It should be noted that, when the distinction between them is not emphasized, their intended meanings are the same.

[0020] In the embodiments of the present invention, sometimes a subscript such as W1 may be written as a non-subscript such as W1. When the difference is not emphasized, the meanings to be expressed are the same.

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-4 As shown, the welding positioning fixture provided by the present invention includes two rotating mounting plates 1, and a clamping and fixing structure for welding workpieces is provided on the rotating mounting plate 1. The clamping and fixing structure includes an outer clamping jaw 2, and a positioning groove 3 is provided on the rotating mounting plate 1. The outer clamping jaw 2 is provided on the outside of the positioning groove 3. The positioning groove 3 is a welding position of the workpiece. The workpiece is placed above the positioning groove 3, and the workpiece is positioned according to the contour of the positioning groove 3. The workpiece is fixed on the positioning groove 3 by the outer clamping jaw 2. There are multiple groups of outer clamping jaws 2, and the outer clamping jaws 2 are designed according to the characteristics of the workpiece. The installation position of the outer clamping jaw 2 is fixed to the output end of the rotating motor 5 on the top of the clamping cylinder 4. The outer clamping jaw 2 is driven to rotate by the rotating motor 5. The clamping cylinder 4 controls the rotating motor 5 and the outer clamping jaw 2 at its top to move to clamp or release the workpiece. Specifically, the clamping cylinder 4 starts to drive the outer clamping jaw 2 to rise above the clamping position of the workpiece, and the rotating motor 5 is started to drive the outer clamping jaw 2 to rotate. The end of the outer clamping jaw 2 away from the rotating motor 5 rotates to above the workpiece, and the corresponding clamping cylinder 4 is started to buckle the outer clamping jaw 2 on the workpiece to fix the workpiece.

[0023] The present invention provides two rotating mounting plates 1, and a workpiece clamping and fixing structure is provided on the rotating mounting plate 1, so that the welding tool has a double station, and can perform welding work on two identical workpieces at the same time, thereby improving work efficiency. A synchronous driving device for driving the rotating mounting plates 1 to rotate synchronously is provided on the outer sides of the two rotating mounting plates 1. The synchronous driving device can drive the two rotating mounting plates 1 to rotate simultaneously. The synchronous driving device includes a double-grooved transmission wheel 6 and two driving wheels 8 respectively linked to the double-grooved transmission wheel 6 through belts 7. The double-grooved transmission wheel 6 is fixed to the output end of the driving motor 9. When the driving motor 9 is started, the driving motor 9 drives the double-grooved transmission wheel 6 to rotate. The double-grooved transmission wheel 6 drives the two driving wheels 8 to rotate respectively through two belts 7. The two driving wheels 8 are respectively fixedly connected to the rotating mounting plate through a rotating shaft 12. The rotation of the driving wheel 8 drives the rotating mounting plate 1 to rotate, thereby driving the workpiece clamped and fixed on the rotating mounting plate 1 to rotate, and cooperating with the welding manipulator to weld different parts of the workpiece.

[0024] In the implementation mode of this embodiment, the drive motor 9 is fixed to the tooling frame 11 through the motor bracket 10, and the motor bracket 10 is fixed to the outside of the tooling frame 11. The output shaft of the drive motor 9 passes through the outer wall of the tooling frame 11 and enters the side panel of the tooling frame 11. The double-groove transmission wheel 6 and the drive wheel 8 are both arranged in the cavity in the side panel of the tooling frame 11.

[0025] Preferably, the rotating shaft 12 is rotatably mounted on the tooling frame 11 through a bearing, and a rotating shaft 12 is respectively provided in the middle of both ends of the rotating mounting plate 1, one of the rotating shafts 12 is fixedly connected to the driving wheel 8, and the purpose of rotating the mounting plate 1 is achieved by rotating the driving wheel 8.

[0026] An inner clamping jaw 13 is provided on the inner side of the positioning groove 3. The inner clamping jaw 13 is fixed to the output end of the rotating motor 5 on the top of the clamping cylinder 4 inside the positioning groove 3. The inner clamping jaw 13 is detachable. The position of the inner clamping jaw 13 and the number of installations are adjusted according to the shape of the workpiece. The inner clamping jaw 13 is suitable for use when there is a through hole in the middle and the diameter of the through hole is larger than the length of the inner clamping jaw 13, and the end of the inner clamping jaw 13 is connected to the rotating motor 5. The clamping cylinder 4 is started to drive the inner clamping jaw 13 to pass through the through hole, and the rotating motor 5 is started to drive the inner clamping jaw 13 to rotate. The inner clamping jaw 13 rotates to the top of the workpiece away from the end of the rotating motor 5, and the corresponding clamping cylinder 4 is started to buckle the inner clamping jaw 13 on the workpiece to fix the workpiece.

[0027] A threaded hole 14 is provided on the rotating mounting plate 1, and a bolt 15 is provided on the edge of the base of the clamping cylinder 4. The clamping cylinder 4 is detachably mounted on the rotating mounting plate through the threaded cooperation of the bolt 15 and the threaded hole 14. By setting the number and position of the threaded holes 14, the installation position of the clamping cylinder 4 on the rotating mounting plate 1 can be adjusted.

[0028] The working process of the present invention is as follows: adjust the two rotating mounting plates 1 to a horizontal initial state, install the position and quantity of the inner clamping jaws 13 and the outer clamping jaws 2 according to the characteristics of the workpiece, place the workpiece on the positioning groove 3, start the clamping cylinder 4, each group of cylinders can be controlled separately, and adjust the height of the outer clamping jaws 2 and the inner clamping jaws 13 relative to the clamping position according to the corresponding workpiece setting, so that the outer clamping jaws 2 and the inner clamping jaws 13 are higher than the height of the clamping position, start the rotating motor 5 to rotate the outer clamping jaws 2 and the inner clamping jaws 13, control the rotating outer clamping jaws 2 and the inner clamping jaws 13 so that they are located directly above the clamping position, start the clamping cylinder 4 again to drive the outer clamping jaws 2 and the inner clamping jaws 13 to buckle on the workpiece, complete the fixation of the workpiece, start the drive motor 9 in conjunction with the welding process, and flip the workpiece.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A welding positioning fixture, characterized in that: It includes two rotating mounting plates, each of which is provided with a positioning groove, an outer clamping claw is provided on the outer side of the positioning groove, the end of the outer clamping claw is fixed to the output end of the rotating motor at the top of the clamping cylinder, and a synchronous driving device is provided on the outer side of the two rotating mounting plates to drive the rotating mounting plates to rotate synchronously.

2. A welding positioning fixture according to claim 1, characterized in that: The synchronous drive device includes a double-groove transmission wheel and two driving wheels respectively connected to the double-groove transmission wheel through belts. The two driving wheels are respectively fixedly connected to the rotating mounting plate through a rotating shaft. The double-groove transmission wheel is fixed to the output end of the driving motor.

3. A welding positioning fixture according to claim 2, characterized in that: The drive motor is fixed on the tooling frame through a motor bracket.

4. A welding positioning fixture according to claim 3, characterized in that: The rotating shaft is rotatably mounted on the tooling frame through a bearing.

5. The welding positioning fixture according to claim 1, characterized in that: An inner clamping claw is provided on the inner side of the positioning groove, and the inner clamping claw is fixed on the output end of the rotating motor on the top of the cylinder inside the positioning groove.

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