A welding positioning fixture for irregularly shaped plates

Abstract

This utility model relates to the field of welding irregularly shaped plates, and more particularly to a positioning fixture for welding irregularly shaped plates. This positioning fixture can position curved plates and rectangular plates separately and assist in their alignment, effectively solving the problems mentioned in the background art. It includes a base, with a first fixing structure on the upper left side of the base that cooperates with the curved plate, and a second fixing structure on the base to the right of the first fixing structure that cooperates with the first fixing structure. A first limiting component is located on the upper left of the first fixing structure, and a second limiting component is located on the upper left of the second fixing structure. It is simple to operate and convenient to use, and is especially suitable for welding irregularly shaped workpieces made by splicing curved and rectangular plates.

Description

Technical Field

[0001] This utility model relates to the field of welding irregularly shaped plates, specifically a positioning tool for welding irregularly shaped plates. Background Technology

[0002] Some small sheet metal welding workshops have irregularly shaped welding workpieces, such as Figure 1 As shown, the welded workpiece includes an upward-opening arc-shaped plate 1, with the upper right side of the arc-shaped plate 1 welded to the bottom left side of the rectangular plate 2. Welding of this type of workpiece is still done manually in small workshops. Currently, there is no suitable positioning fixture for simultaneously fixing the arc-shaped plate 1 and the rectangular plate 2 for welding; existing clamping tools are incompatible, which hinders the improvement of welding efficiency and accuracy. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a welding positioning fixture for irregularly shaped plates. This positioning fixture can position curved plates and rectangular plates separately and assist in aligning them, effectively solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a welding positioning fixture for irregularly shaped plates, including a base, a first fixing structure that cooperates with the arc-shaped plate is provided on the upper left side of the base, a second fixing structure that cooperates with the first fixing structure is provided on the base to the right of the first fixing structure, a first limiting component is provided on the upper left of the first fixing structure, and a second limiting component is provided on the upper left of the second fixing structure.

[0005] The first fixing structure includes a first support at the bottom, an arc-shaped lower clamping plate above the first support, an arc-shaped upper clamping plate spaced above the lower clamping plate, a connecting block at the center of the upper surface of the upper clamping plate, the connecting block being fixedly connected to the upper clamping plate by bolts, the connecting block being fixedly connected to the lower end of the electric telescopic rod, a fixing plate at the upper end of the electric telescopic rod, fixing holes at the four corners of the fixing plate, the fixing holes being fixedly connected to the top plate by bolts, and columns being fixedly installed between the bottom surface of the left and right ends of the rear side of the top plate and the base respectively;

[0006] The second fixing structure includes a clamping seat, the front side of which is embedded with a rectangular notch for clamping a rectangular plate, the bottom surface of the clamping seat is fixedly connected to the top surface of the second support, the bottom surface of the second support is fixedly connected to the upper surface of the base, and a limiting bolt that extends into the rectangular notch is screwed downward on the upper side of the clamping seat.

[0007] As a preferred technical solution, the curvature of the upper surface of the lower clamping plate is consistent with the curvature of the bottom surface of the curved plate, and a rubber layer is provided on the upper surface of the lower clamping plate.

[0008] As a preferred technical solution, the curvature of the lower surface of the upper clamping plate is consistent with the curvature of the upper surface of the curved plate, and a rubber layer is provided on the lower surface of the upper clamping plate.

[0009] As a preferred technical solution, the first limiting component includes a first screw that is vertically screwed through the top plate, a first nut on the first screw on the upper and lower sides of the top plate, and a first limiting block fixed on the bottom surface of the first screw. The first limiting block is in the shape of a cuboid and its bottom surface is in contact with the upper left side surface of the arc-shaped plate.

[0010] As a preferred technical solution, the second limiting component includes a second screw that is vertically screwed through the top plate, a second nut on the second screw on the upper and lower sides of the top plate, and a second limiting block fixed on the bottom surface of the second screw. The second limiting block is corner-shaped and its inner top surface contacts the top surface of the rectangular plate.

[0011] As a preferred technical solution, the upper protrusion of the limiting bolt is provided with a horizontal bar evenly distributed on the side circumference, and a ball is fixedly provided at the outer end of the horizontal bar.

[0012] As a preferred technical solution, the base has an extension portion to the right, and the upper side of the extension portion has a positioning structure symmetrical to the upper structure of the base.

[0013] Compared with the prior art, this utility model provides a welding positioning fixture for irregularly shaped plates, which has the following beneficial effects:

[0014] 1. This utility model includes a first support at the bottom through a first fixing structure. An arc-shaped lower clamping plate is provided above the first support. An arc-shaped upper clamping plate is provided at intervals above the lower clamping plate. A connecting block is provided at the center of the upper surface of the upper clamping plate. The connecting block is fixedly connected to the upper clamping plate by bolts. The connecting block is fixedly connected to the lower end of the electric telescopic rod. A fixing plate is provided at the upper end of the electric telescopic rod. Fixing holes are provided at the four corners of the fixing plate. The fixing holes are fixedly connected to the top plate by bolts. In use, the initial state of the electric telescopic rod is the retracted state, which increases the distance between the upper clamping plate and the lower clamping plate. The arc-shaped plate is placed on the lower clamping plate. Then the electric telescopic rod is started, which causes the upper clamping plate to move downward to clamp the arc-shaped plate.

[0015] 2. This utility model includes a clamping seat through a second fixing structure. The front side of the clamping seat has a rectangular notch for clamping a rectangular plate. The bottom surface of the clamping seat is fixedly connected to the top surface of the second support. The bottom surface of the second support is fixedly connected to the upper surface of the base. A limiting bolt that extends into the rectangular notch is screwed downward on the upper side of the clamping seat. In use, the limiting bolt is loosened so that the rectangular plate slides into the rectangular notch. Then, the rectangular plate can be positioned by screwing the limiting bolt.

[0016] 3. This utility model includes a first limiting component comprising a first screw that is vertically threaded through and screwed onto a top plate. First nuts are provided on the first screws on both the upper and lower sides of the top plate. A first limiting block is fixed to the bottom surface of the first screw. The first limiting block is generally rectangular in shape, with its bottom surface contacting the upper left side of the curved plate. In use, when the curved plate is installed, the top surface of its left end contacts the bottom surface of the first limiting block, thus limiting the curved plate and allowing it to be placed vertically. The position of the first screw can be adjusted by using the first nut, thereby adjusting the position of the bottom limiting block.

[0017] 4. This utility model includes a second screw that is vertically threaded through and screwed onto the top plate. A second nut is provided on the second screw on both the upper and lower sides of the top plate. A second limiting block is fixed to the bottom surface of the second screw. The second limiting block is corner-shaped, with its inner top surface contacting the top surface of the rectangular plate. In use, the rectangular plate slides to the left within the rectangular notch, causing the top surface and left end face of the rectangular plate to contact the second limiting block, thus limiting the rectangular plate. At this time, the bottom surface of the left end of the rectangular plate is in contact with the top surface of the right side of the curved plate, facilitating welding by the workers.

[0018] 5. This utility model has an extension portion extending to the right from the base. The upper side of the extension portion has a positioning structure symmetrical to the upper structure of the base. When in use, when the welding worker is welding the irregular workpiece on the left, other workers can fix the arc-shaped plate and the rectangular plate respectively on the positioning structure on the right. After the welding worker finishes welding, the second workpiece can be welded on the right, which helps to improve the overall work efficiency. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of an existing irregularly shaped workpiece;

[0021] Figure 2 This is a three-dimensional structural diagram of the first embodiment of the present utility model;

[0022] Figure 3 for Figure 2 A three-dimensional structural diagram of the first fixed structure in the middle;

[0023] Figure 4 for Figure 2 A three-dimensional structural diagram of the second fixed structure;

[0024] Figure 5 This is an enlarged structural diagram of the first limiting component;

[0025] Figure 6 A three-dimensional structural diagram of the second limiting component;

[0026] Figure 7 This is a three-dimensional structural diagram of the second embodiment of the present invention.

[0027] The diagram indicates: 1. Curved plate; 2. Rectangular plate; 3. First fixing structure; 31. First support; 32. Lower clamping plate; 33. Upper clamping plate; 34. Fixing block; 341. Fastening bolt; 35. Electric telescopic rod; 36. Rod body; 37. Fixing plate; 371. Fixing hole; 4. Second fixing structure; 41. Clamping seat; 411. Rectangular notch; 42. Second support; 43. Limiting bolt; 44. Crossbar; 45. Sphere; 5. Base; 51. Extension part; 6. Column; 7. Top plate; 8. First limiting component; 81. First screw; 82. First nut; 83. First limiting block; 9. Second limiting component; 91. Second screw; 92. Second nut; 93. Second limiting block; 10. Isomorphic positioning structure. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figures 2 to 6 As shown, a welding positioning fixture for irregularly shaped plates includes a base 5. A first fixing structure 3 that cooperates with the arc-shaped plate 1 is provided on the upper left side of the base 5. A second fixing structure 4 that cooperates with the first fixing structure 3 is provided on the base 5 to the right of the first fixing structure 3. A first limiting component 8 is provided on the upper left of the first fixing structure 3. A second limiting component 9 is provided on the upper left of the second fixing structure 4.

[0031] The first fixed structure 3 includes a first support 31 at the bottom, an arc-shaped lower clamping plate 32 above the first support 31, an arc-shaped upper clamping plate 33 spaced above the lower clamping plate 32, a connecting block 34 at the center of the upper surface of the upper clamping plate 33, the connecting block 34 being fixedly connected to the upper clamping plate 33 by bolts 341, the connecting block 34 being fixedly connected to the lower end of the rod body 36 (vertical extension and retraction) of the electric telescopic rod 35, a fixing plate 37 at the upper end of the electric telescopic rod 35, fixing holes 371 at the four corners of the fixing plate 37, the fixing holes 371 being fixedly connected to the top plate 7 by bolts, and columns 6 being fixedly installed between the bottom surface of the left and right ends of the rear side of the top plate 7 and the base 5 respectively.

[0032] The second fixing structure 4 includes a clamping seat 41. The front side of the clamping seat 41 is embedded with a rectangular notch 411 for clamping the rectangular plate 2. The bottom surface of the clamping seat 41 is fixedly connected to the top surface of the second support 42. The bottom surface of the second support 42 is fixedly connected to the upper surface of the base 5. A limiting bolt 43 that extends into the rectangular notch 411 is screwed downward on the upper side of the clamping seat 41.

[0033] The curvature of the upper surface of the lower clamping plate 32 is consistent with the curvature of the bottom surface of the curved plate 1, and the upper surface of the lower clamping plate 32 is provided with a rubber layer (not shown). This provides anti-slip properties and protects the plate.

[0034] The curvature of the lower surface of the upper clamping plate 33 is consistent with the curvature of the upper surface of the curved plate 1, and the lower surface of the upper clamping plate 33 is provided with a rubber layer (not shown). This provides anti-slip properties and protects the plate.

[0035] The first limiting component 8 includes a first screw 81 that is vertically screwed through the top plate. The first screw 81 on the upper and lower sides of the top plate 7 is provided with a first nut 82. The bottom surface of the first screw 81 is fixedly provided with a first limiting block 83. The first limiting block 83 is in the shape of a cuboid and its bottom surface is in contact with the upper left side surface of the arc-shaped plate 1.

[0036] The second limiting component 9 includes a second screw 91 that is vertically screwed through the top plate 7. The second screw 91 on the upper and lower sides of the top plate 7 is provided with a second nut 92. The bottom surface of the second screw 92 is fixed with a second limiting block 93. The second limiting block 93 is corner-shaped and its inner top surface is in contact with the top surface of the rectangular plate 2.

[0037] The upper protrusion of the limiting bolt 43 (including the upper protrusion and the screw part screwed into the clamping seat 41) is uniformly provided with a crossbar 44, and a ball 45 is fixedly provided at the outer end of the crossbar 44.

[0038] In use, the electric telescopic rod 35 is initially in a retracted state, increasing the distance between the upper clamping plate 33 and the lower clamping plate 32. The curved plate 1 is placed on the lower clamping plate 32, and then the electric telescopic rod 35 is activated, causing the upper clamping plate 33 to move downwards and clamp the curved plate 1. The limiting bolt 43 is loosened, allowing the rectangular plate 2 to slide into the rectangular notch 411. The rectangular plate 2 can then be positioned by tightening the limiting bolt 43. When the curved plate 1 is installed, the top surface of its left end contacts the bottom surface of the first limiting block 83, thus completing the limiting of the curved plate 1 and placing it vertically. The position of the first screw 81 can be adjusted by the first nut 82, thereby adjusting the position of the bottom first limiting block 83. The rectangular plate 2 slides to the left in the rectangular notch 411, so that the top surface and left end surface of the left end of the rectangular plate 2 contact the second limiting block 93 (corner-shaped) respectively, thus limiting the rectangular plate 2. At this time, the bottom surface of the left end of the rectangular plate 2 just contacts the top surface of the right side of the arc plate 1, which is convenient for the workers to weld.

[0039] Example 2

[0040] like Figure 7 As shown, the base 5 has an extension 51 to the right, and the upper side of the extension 51 has a symmetrical positioning structure 10 that is the same as that on the upper side of the base 5. The symmetrical positioning structure 10 means that it is the same as the positioning structure on the upper side of the left side of the base 5.

[0041] When in use, while the welding worker is welding the irregular workpiece on the left, other workers can fix the arc-shaped plate 1 and the rectangular plate 2 on the right respectively. After the welding worker finishes welding, the second workpiece can be welded on the right, which helps to improve the overall work efficiency.

[0042] The components used in this utility model are all general standard parts or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0043] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0044] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification of the structure, change of the proportions, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special-shaped plate welding positioning tool, characterized in that: The device includes a base, on the upper left side of which a first fixing structure is provided to cooperate with the arc-shaped plate, and on the right side of the base of the first fixing structure a second fixing structure is provided to cooperate with the first fixing structure. A first limiting component is provided on the upper left of the first fixing structure, and a second limiting component is provided on the upper left of the second fixing structure. The first fixing structure includes a first support at the bottom, an arc-shaped lower clamping plate above the first support, an arc-shaped upper clamping plate spaced above the lower clamping plate, a connecting block at the center of the upper surface of the upper clamping plate, the connecting block being fixedly connected to the upper clamping plate by bolts, the connecting block being fixedly connected to the lower end of the electric telescopic rod, a fixing plate at the upper end of the electric telescopic rod, fixing holes at the four corners of the fixing plate, the fixing holes being fixedly connected to the top plate by bolts, and columns being fixedly installed between the bottom surface of the left and right ends of the rear side of the top plate and the base respectively; The second fixing structure includes a clamping seat, the front side of which is embedded with a rectangular notch for clamping a rectangular plate, the bottom surface of the clamping seat is fixedly connected to the top surface of the second support, the bottom surface of the second support is fixedly connected to the upper surface of the base, and a limiting bolt that extends into the rectangular notch is screwed downward on the upper side of the clamping seat.

2. The profiled sheet welding positioning tool according to claim 1, characterized in that: The curvature of the upper surface of the lower clamping plate is consistent with the curvature of the bottom surface of the curved plate, and a rubber layer is provided on the upper surface of the lower clamping plate.

3. The profiled sheet welding positioning tool according to claim 1, characterized in that: The curvature of the lower surface of the upper clamping plate is consistent with the curvature of the upper surface of the curved plate, and a rubber layer is provided on the lower surface of the upper clamping plate.

4. The welding positioning fixture for irregularly shaped plates according to claim 1, characterized in that: The first limiting component includes a first screw that is vertically screwed through the top plate. The first screw on the upper and lower sides of the top plate is provided with a first nut. A first limiting block is fixed on the bottom surface of the first screw. The first limiting block is in the shape of a cuboid and its bottom surface is in contact with the upper left side surface of the arc-shaped plate.

5. The profiled sheet welding positioning tool according to claim 1, characterized in that: The second limiting component includes a second screw that is vertically screwed through the top plate. The second screw on the upper and lower sides of the top plate is provided with a second nut. A second limiting block is fixed on the bottom surface of the second screw. The second limiting block is corner-shaped and its inner top surface contacts the top surface of the rectangular plate.

6. The profiled sheet welding positioning tool according to claim 1, characterized in that: The upper protrusion of the limiting bolt is provided with a horizontal bar evenly distributed on its circumferential surface, and a ball is fixedly provided at the outer end of the horizontal bar.

7. The profiled sheet welding positioning tool according to claim 1, characterized in that: The base has an extension to the right, and the upper side of the extension has a positioning structure that is symmetrical to the upper structure of the base.

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