Tool for welding sheet metal parts

Abstract

The tool comprises a base plate and a plurality of clamps, a plurality of regular octagonal holes are formed in the top face of the base plate, each clamp comprises a hollow regular octagonal prism, the bottom end of each hollow regular octagonal prism is located in the corresponding first threaded hole, and each hollow regular octagonal prism is detachably connected with the base plate. The outer wall of the hollow regular octagonal prism is slidably sleeved with a sliding sleeve, a locking mechanism is installed on the sliding sleeve, and the outer wall of the sliding sleeve is connected with a clamping plate through a linear driving mechanism. When the special-shaped sheet metal part positioning and clamping device is used, according to the outer contour shape of a special-shaped sheet metal part to be welded, after the hollow regular octagonal prism is installed at a proper position on the base plate, the height of the sliding sleeve on the hollow regular octagonal prism is adjusted, the linear driving mechanism drives the clamping plates to move, then the special-shaped sheet metal part can be positioned and clamped, operation is easy and convenient, and the working efficiency is improved. And the positioning precision of repeated clamping is good, welding operation of the robot is facilitated, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to a welding tool, in particular to a tool for welding and processing sheet metal parts. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates (usually less than 6mm), including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. The products processed by sheet metal technology are called sheet metal parts.

[0003] With the development and popularization of industrial robots, many sheet metal welding processes are currently completed by industrial welding robots. Since welding robots mostly move the welding gun through a preset motion trajectory, the sheet metal parts to be welded need to be positioned more accurately to ensure the accuracy and quality of robot welding. Therefore, tooling is usually required to position the sheet metal parts.

[0004] For special-shaped sheet metal parts (such as arc-shaped, wavy-shaped and other irregular shapes), conventional clamps are usually difficult to stably clamp and position them, so special tooling that matches their appearance is often required. For special-shaped sheet metal parts manufactured in large quantities, the cost of customized tooling can be spread over each special-shaped sheet metal part, and the overall cost is acceptable. However, for special-shaped sheet metal parts produced in small batches, customized tooling will undoubtedly greatly increase production costs, and the tooling cannot be used for welding positioning of other sheet metal parts. For this reason, we propose a tooling for sheet metal welding processing. Utility Model Content

[0005] The purpose of the utility model is to provide a tool for sheet metal welding processing to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tool for sheet metal welding processing includes a base plate and a plurality of clamps, wherein the top surface of the base plate is provided with a plurality of regular octagonal holes, the clamps include a hollow regular octagonal prism, the bottom end of the hollow regular octagonal prism is located in the corresponding first threaded hole, and the hollow regular octagonal prism is detachably connected to the base plate, the outer wall of the hollow regular octagonal prism is slidably provided with a sliding sleeve, a locking mechanism is installed on the sliding sleeve, and the outer wall of the sliding sleeve is connected to a clamping plate via a linear drive mechanism.

[0008] As a further solution of the utility model: the linear drive mechanism includes an internal threaded tube fixedly connected to the sleeve, a screw rod is inserted through the inner side of the internal threaded tube, one end of the screw rod is fixedly connected to a hand wheel, and the other end of the screw rod is rotatably connected to the splint.

[0009] As a further solution of the utility model: the size of the regular octagonal hole is compatible with the bottom end size of the hollow regular octagonal prism, a first threaded hole is opened on the bottom inner wall of the regular octagonal hole, a long rod bolt is passed through the hollow regular octagonal prism, and the long rod bolt is matched and connected with the first threaded hole.

[0010] As a further solution of the utility model: the locking mechanism includes a hand-tightening bolt, and the outer wall of the sliding sleeve is provided with a second threaded hole adapted to the hand-tightening bolt.

[0011] As a further solution of the utility model: an open groove is provided on the top surface of the sliding sleeve, the open groove is connected to the second threaded hole, a pressure plate is arranged in the open groove, the outer wall of the pressure plate is fitted with the outer wall of the hollow regular octagonal prism, and the threaded end of the hand-tightening bolt is abutted against the outer wall of the pressure plate.

[0012] As a further solution of the utility model: the regular octagonal holes are distributed in a rectangular array on the top surface of the substrate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the utility model is in use, after the hollow regular octagonal prism is installed at the appropriate position on the base plate according to the outer contour of the special-shaped sheet metal part to be welded, the height of the sliding sleeve on the hollow regular octagonal prism is adjusted, and the clamping plate is driven to move by the linear drive mechanism, so that the special-shaped sheet metal part can be positioned and clamped. The operation is simple and convenient, and the positioning accuracy of repeated clamping is good, which is convenient for the robot to perform welding operations and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the structure of a tooling for sheet metal welding processing.

[0016] Figure 2 The present invention is a schematic diagram of the structure of a long-rod bolt in a tooling used for sheet metal welding processing.

[0017] Figure 3 The present invention is a schematic diagram of the structure of a pressure plate in a tooling for sheet metal welding processing.

[0018] Among them, there are a base plate 1, a regular octagonal hole 2, a first threaded hole 3, a hollow regular octagonal prism 4, a long rod bolt 5, a sliding sleeve 6, an internal threaded tube 7, a screw 8, a clamping plate 9, a hand wheel 10, a hand-tightening bolt 11, an open slot 12, and a pressure plate 13. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail in conjunction with the embodiments below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0023] See also Figures 1 to 3 In an embodiment of the utility model, a tool for sheet metal welding processing includes a base plate 1 and a plurality of clamps, the top surface of the base plate 1 is provided with a plurality of regular octagonal holes 2, the clamp includes a hollow regular octagonal prism 4, the bottom end of the hollow regular octagonal prism 4 is located in the corresponding first threaded hole 3, and the hollow regular octagonal prism 4 is detachably connected to the base plate 1, the outer wall of the hollow regular octagonal prism 4 is slidably provided with a sliding sleeve 6, a locking mechanism is installed on the sliding sleeve 6, and the outer wall of the sliding sleeve 6 is connected to a clamping plate 9 through a linear drive mechanism.

[0024] The utility model adopts the above scheme. When in use, according to the outer contour shape of the special-shaped sheet metal to be welded, a hollow regular octagonal prism 4 is installed at the regular octagonal hole 2 at an appropriate position on the base plate 1, and then the sliding sleeve 6 is sleeved on the hollow regular octagonal prism 4 to an appropriate height, and the sliding sleeve 6 is locked on the hollow regular octagonal prism 4 by the locking mechanism. Then, the special-shaped sheet metal is placed between each clamping plate 9, and then the linear drive mechanism is operated to drive each clamping plate 9, so that a plurality of clamping plates 9 can be used to position and clamp the special-shaped sheet metal. After completing the welding of a special-shaped sheet metal part, it is only necessary to operate the clamping plates 9 located on one side (front side, rear side, left side, right side) or on both adjacent sides of the special-shaped sheet metal part to release the special-shaped sheet metal part. The other clamping plates 9 that have not been moved can be used as positioning parts to ensure the positioning accuracy of repeated clamping when clamping the next special-shaped sheet metal part, thereby facilitating the robot to perform welding operations without modifying the robot's operating code again, and the use effect is good.

[0025] Specific combination Figure 1-3 In one embodiment of the utility model, the linear drive mechanism includes an internal threaded tube 7 fixedly connected to the sleeve 6, a screw 8 is passed through the inner side of the internal threaded tube 7, one end of the screw 8 is fixedly connected to a handwheel 10, and the other end of the screw 8 is rotatably connected to the splint 9.

[0026] Through the cooperation between the internal threaded tube 7 and the screw rod 8, the distance between the clamping plate 9 and the sheet metal part can be adjusted by rotating the screw rod 8 through the hand wheel 10, which is simple and convenient to operate. In addition, the linear drive mechanism can also be replaced by a cylinder, an electric cylinder or other actuators, so as to facilitate the automatic operation of the tooling.

[0027] Specific combination Figure 1 and Figure 2 In one embodiment of the utility model, the size of the regular octagonal hole 2 is adapted to the bottom end size of the hollow regular octagonal prism 4, a first threaded hole 3 is opened on the bottom inner wall of the regular octagonal hole 2, a long rod bolt 5 is passed through the hollow regular octagonal prism 4, and the long rod bolt 5 is matched and connected with the first threaded hole 3.

[0028] By cooperating between the regular octagonal hole 2 and the hollow regular octagonal prism 4, the hollow regular octagonal prism 4 can be positioned on the base plate 1, and the angle of the corresponding clamping plate 9 can be adjusted by simply inserting the hollow regular octagonal prism 4 into the regular octagonal hole 2 at different angles, thereby making it more convenient to position and clamp different special-shaped sheet metal parts, and by cooperating between the long rod screw 5 and the first threaded hole 3, the hollow regular octagonal prism 4 can be locked on the base plate 1, and the operation is simple and convenient.

[0029] Specific combination Figure 2 and Figure 3In one embodiment of the utility model, the locking mechanism includes a hand-tightening bolt 11 , and the outer wall of the sliding sleeve 6 is provided with a second threaded hole adapted to the hand-tightening bolt 11 .

[0030] Furthermore, an open groove 12 is provided on the top surface of the sliding sleeve 6, and the open groove 12 is connected to the second threaded hole. A pressure plate 13 is provided in the open groove 12, and the outer wall of the pressure plate 13 is in contact with the outer wall of the hollow regular octagonal prism 4, and the threaded end of the hand-tightening bolt 11 is abutted against the outer wall of the pressure plate 13.

[0031] By adopting the above scheme, the utility model can push the pressing plate 13 to press against the outer wall of the hollow regular octagonal prism 4, and thus press the sliding sleeve 6 against the hollow regular octagonal prism 4, after adjusting the sliding sleeve 6 to the desired height on the hollow regular octagonal prism 4, by tightening the hand-tightening bolt 11, and the operation is simple and convenient.

[0032] Specific combination Figure 1 In one embodiment of the present invention, the regular octagonal holes 2 are distributed in a rectangular array on the top surface of the substrate 1 .

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A tool for sheet metal welding, characterized in that: The invention comprises a base plate (1) and a plurality of clamps, wherein the top surface of the base plate (1) is provided with a plurality of regular octagonal holes (2), the clamp comprises a hollow regular octagonal prism (4), the bottom end of the hollow regular octagonal prism (4) is located in a corresponding first threaded hole (3), and the hollow regular octagonal prism (4) is detachably connected to the base plate (1), the outer wall of the hollow regular octagonal prism (4) is slidably provided with a sliding sleeve (6), a locking mechanism is installed on the sliding sleeve (6), and the outer wall of the sliding sleeve (6) is connected to a clamping plate (9) via a linear drive mechanism.

2. The tooling for sheet metal welding according to claim 1, characterized in that: The linear drive mechanism comprises an internal threaded tube (7) fixedly connected to the sliding sleeve (6), a screw rod (8) is provided on the inner side of the internal threaded tube (7), one end of the screw rod (8) is fixedly connected to a hand wheel (10), and the other end of the screw rod (8) is rotatably connected to a clamping plate (9).

3. The tooling for sheet metal welding according to claim 1, characterized in that: The size of the regular octagonal hole (2) is matched with the size of the bottom end of the hollow regular octagonal prism (4); a first threaded hole (3) is provided on the bottom inner wall of the regular octagonal hole (2); a long-rod bolt (5) is inserted into the hollow regular octagonal prism (4), and the long-rod bolt (5) is matched and connected with the first threaded hole (3).

4. The tooling for sheet metal welding according to claim 1, characterized in that: The locking mechanism comprises a hand-tightening bolt (11), and the outer wall of the sliding sleeve (6) is provided with a second threaded hole matched with the hand-tightening bolt (11).

5. The tooling for sheet metal welding according to claim 4, characterized in that: An open groove (12) is provided on the top surface of the sliding sleeve (6), and the open groove (12) is connected to the second threaded hole. A pressure plate (13) is provided in the open groove (12), and the outer wall of the pressure plate (13) is in contact with the outer wall of the hollow regular octagonal prism (4), and the threaded end of the hand-tightening bolt (11) is abutted against the outer wall of the pressure plate (13).

6. The tooling for sheet metal welding according to claim 1, characterized in that: The regular octagonal holes (2) are distributed in a rectangular array on the top surface of the substrate (1).

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