Variable angle fixture for arc welding

Abstract

This utility model relates to a variable-angle tooling for arc welding, specifically addressing the problem that fixed fixtures cannot provide the necessary flexibility when the workpiece needs to be adjusted to a specific angle for optimal welding. Non-ideal welding angles easily lead to insufficient weld penetration, poor weld formation, increased spatter, and even serious defects such as incomplete fusion and slag inclusions, significantly affecting the quality and reliability of the welded joint. Technical features include: a pair of bases; each base has two pairs of mounting screw holes; and a support assembly, a guide assembly mounted on the support assembly, a placement assembly mounted on the guide assembly, and an upper platform fixture fixing plate mounted on the upper surface of the placement assembly. This eliminates the need to replace the entire tooling set due to angle requirements, allowing adjustment to the optimal welding angle, reducing defects such as insufficient penetration and slag inclusions. The structure is relatively simple and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of arc welding tooling technology, and in particular to a tooling for arc welding parts with variable angles. Background Technology

[0002] In the field of arc welding, especially for welding small workpieces, the angle adjustment capability of tooling fixtures is crucial.

[0003] In existing technologies, most welding fixtures are fixed designs, and their angles cannot be adjusted during operation once set. This rigid structure often leads to significant welding defects when welding complex structures or requiring specific welding positions.

[0004] When a workpiece needs to be adjusted to a specific angle for optimal welding, fixed fixtures cannot provide the necessary flexibility. Non-ideal welding angles can easily lead to insufficient weld penetration, poor weld formation, increased spatter, and even serious defects such as incomplete fusion and slag inclusions, significantly affecting the quality and reliability of the welded joint. Designing and manufacturing different special fixtures for different angle requirements leads to a sharp increase in design, manufacturing, and maintenance costs. For welding small workpieces, the resource investment of traditional angle adjustment solutions (such as large positioners) is seriously mismatched with the benefits they bring. Therefore, in order to solve this problem, it is very necessary to design a variable angle tooling for arc welding. Utility Model Content

[0005] This invention addresses the problem in existing technologies where, when a workpiece needs to be adjusted to a specific angle for optimal welding, the fixed fixture cannot provide the necessary flexibility. Non-ideal welding angles easily lead to insufficient weld penetration, poor weld formation, increased spatter, and even serious defects such as incomplete fusion and slag inclusions, significantly affecting the quality and reliability of the welded joint. Designing and manufacturing different specialized fixtures for different angle requirements results in a sharp increase in design, manufacturing, and maintenance costs. Furthermore, for welding small workpieces, the resource investment in traditional angle adjustment solutions (such as large positioners) is severely mismatched with their benefits. This invention provides a variable angle tooling for arc welding.

[0006] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0007] Variable angle tooling for arc welding, including:

[0008] A pair of bases;

[0009] Each of the bases has two pairs of mounting screw holes;

[0010] Also includes:

[0011] Support assembly, guide assembly mounted on support assembly, placement assembly mounted on guide assembly, and upper platform clamping equipment fixing plate mounted on upper surface of placement assembly;

[0012] The support assembly includes: a pair of vertical support plates;

[0013] Each of the vertical support plates is mounted on the corresponding upper surface of the base;

[0014] The guiding assembly includes: two pairs of guide wheels and guide plates mounted on the two pairs of guide wheels;

[0015] Each of the vertical support plates is provided with a pair of circular openings, each of the guide wheels is mounted on the corresponding circular opening, the guide plate is provided with two pairs of arc-shaped guide openings, and the guide plate is mounted on the corresponding vertical support plate through the two pairs of guide wheels;

[0016] The placement assembly includes: a mounting base, an automatic cylinder mounted on the mounting base, a connector mounted on the telescopic end of the automatic cylinder, and a connector mounted on the connector.

[0017] The upper platform clamping device fixing plate is installed on the upper surface of the pair of guide plates, so the upper platform clamping device fixing plate is connected to the connecting seat.

[0018] Preferably, the vertical support plate includes: a support plate and three auxiliary support plates mounted on the support plate;

[0019] One end of each of the three auxiliary support plates is connected to the support plate, and the other end of each of the three auxiliary support plates is connected to the base.

[0020] Preferably, the guide wheel includes: an annular mounting plate, a rotating rod mounted on the annular mounting plate, and a rotating wheel mounted on the rotating rod;

[0021] The rotating wheel and the annular mounting plate are located on opposite sides of the rotating rod. The rotating wheel is located inside the vertical support plate, and the annular mounting plate is located outside the vertical support plate.

[0022] Preferably, the guide plate includes: a pair of vertical guide plates, a limiting plate mounted on each of the vertical guide plates, and a connecting support plate mounted on the pair of vertical guide plates;

[0023] Each of the vertical guide plates has a pair of arc-shaped guide openings on its side surface, the arc-shaped guide openings matching the guide wheel, each of the limiting plates is installed at the lower end of the corresponding vertical guide plate side surface, and the connecting support plate is installed between the pair of vertical guide plates.

[0024] Preferably, the mounting base includes: a mounting base, a pair of first vertical mounting plates mounted on the mounting base, a first rotating rod mounted on the pair of first vertical mounting plates, and a mounting body mounted on the first rotating rod;

[0025] The mounting base is provided with screw holes, and the mounting base is installed by bolts through the screw holes. The automatic cylinder is installed on the mounting base through the mounting body.

[0026] Preferably, the connector includes: a first connecting block, a pair of second vertical mounting plates mounted on the first connecting block, a second rotating rod mounted on the pair of second vertical mounting plates, and a connecting seat mounted on the second rotating rod;

[0027] The connecting seat is provided with two pairs of fixing screw holes, and the connecting seat is connected to the connecting support plate by bolts at the fixing screw holes.

[0028] Preferably, the upper platform clamping device fixing plate is a horizontal mounting plate.

[0029] This utility model has the following beneficial effects:

[0030] This variable-angle welding fixture achieves a wide range of stepless angle adjustment through the cooperation of the arc-shaped guide opening on the guide plate and the guide wheel, meeting the welding needs of special positions such as overhead welding and side welding. The automatic cylinder pushes the connecting part to link the guide plate, which can finely adjust the welding angle and avoid manual adjustment errors. The angle adjustment is achieved through the compact swing component and guide mechanism, eliminating the need to purchase expensive industrial positioners. The original fixture can be directly installed on the upper platform fixture equipment fixing plate, avoiding the need to replace the entire set of fixtures due to angle requirements. It can be adjusted to the optimal welding angle, reducing defects such as insufficient penetration and slag inclusion. The structure is relatively simple and easy to use. Attached Figure Description

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 This is a schematic diagram of the variable angle tooling for arc welding parts according to the present invention.

[0033] Figure 2 This is a partial schematic diagram of the vertical support plate of this utility model;

[0034] Figure 3 This is a partial schematic diagram of the guide plate of this utility model;

[0035] Figure 4 This is a partial schematic diagram of the guide wheel of this utility model;

[0036] Figure 5 This is a partial schematic diagram of the mounting base of this utility model;

[0037] Figure 6 This is a partial schematic diagram of the connector of this utility model;

[0038] Figure 7 This is a partial schematic diagram of the connecting seat of this utility model.

[0039] The reference numerals in the figure are:

[0040] Base 10, support component 20, guide component 30, placement component 40, upper platform clamping equipment fixing plate 50;

[0041] Vertical support plate 21;

[0042] Guide wheel 31, guide plate 32;

[0043] Mounting base 41, automatic cylinder 42, connector 43, connecting base 44;

[0044] Support plate 211, auxiliary support plate 212;

[0045] Annular mounting plate 311, rotating rod 312, rotating wheel 313;

[0046] Vertical guide plate 321, limiting plate 322, connecting support plate 323;

[0047] Mounting base 411, first vertical mounting plate 412, first rotating rod 413, mounting body 414;

[0048] First connecting block 431, second vertical mounting plate 432, second rotating rod 433, connecting seat 434. Detailed Implementation

[0049] 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.

[0050] Please see Figure 1-7The variable angle tooling for arc welding includes: a pair of bases 10, each base 10 having two pairs of mounting screw holes; a support assembly 20; a guide assembly 30 mounted on the support assembly 20; a placement assembly 40 mounted on the guide assembly 30; and a swing assembly mounted on the lower surface of the placement assembly 40. The support assembly 20 includes: a pair of vertical support plates 21, each vertical support plate 21 mounted on the upper surface of a corresponding base 10; the guide assembly 30 includes: two pairs of guide wheels 31 and guide plates 32 mounted on the two pairs of guide wheels 31; and each vertical support plate 21... A pair of circular openings are provided, and each guide wheel 31 is installed on the corresponding circular opening. The guide plate 32 is provided with two pairs of arc-shaped guide openings. The guide plate 32 is installed on the corresponding vertical support plate 21 through the two pairs of guide wheels 31. The placement component 40 includes: a mounting base 41, an automatic cylinder 42 installed on the mounting base 41, a connector 43 installed on the telescopic end of the automatic cylinder 42, a connecting seat 44 installed on the connector 43, and an upper platform clamping equipment fixing plate 50 installed on the guide plate 32. The upper platform clamping equipment fixing plate 50 is installed on the upper surface of the pair of guide plates 32.

[0051] The base 10 is made of Q235B steel plate. The base 10 is fixed to the workbench through the bottom mounting screw holes. A vertical support plate 21 is installed on the upper surface of each base 10 and bolted to the base 10. Guide wheels 31 are installed in the circular opening of the vertical support plate 21. The arc-shaped guide opening of the guide plate 32 is inserted into the two pairs of guide wheels 31. The placement component 40 is installed at the front end of the base 10. The mounting base 41 is fixed to the workbench with bolts. The automatic cylinder 42 is an SCA2-50×100 automatic cylinder.

[0052] The vertical support plate 21 includes a support plate 211 and three auxiliary support plates 212 mounted on the support plate 211. One end of the three auxiliary support plates 212 is connected to the support plate 211, and the other end of the three auxiliary support plates 212 is connected to the base 10.

[0053] The main body of the support plate is bolted to the base, and three triangular auxiliary support plates 212 are welded between the main body of the support plate and the base 10 to enhance torsional rigidity.

[0054] The guide wheel 31 includes: an annular mounting plate 311, a rotating rod 312 mounted on the annular mounting plate 311, and a rotating wheel 313 mounted on the rotating rod 312. The rotating wheel 313 and the annular mounting plate 311 are located on opposite sides of the rotating rod 312. The rotating wheel 313 is located inside the vertical support plate 21, and the annular mounting plate 311 is located outside the vertical support plate 21.

[0055] The rotating wheel 313 passes through the inside of the support plate 211, and the rotating rod 312 passes through the circular opening. The outer side is fixed by the locking nut of the annular mounting plate 311.

[0056] The guide plate 32 includes: a pair of vertical guide plates 321, a limiting plate 322 installed on each vertical guide plate 321, and a connecting support plate 323 installed on the pair of vertical guide plates 321. Each vertical guide plate 321 has a pair of arc-shaped guide openings on its side surface, which match the guide wheel 31. Each limiting plate 322 is installed at the lower end of the side surface of the corresponding vertical guide plate 321, and the connecting support plate 323 is installed between the pair of vertical guide plates 321.

[0057] The arc-shaped guide opening of the vertical guide plate 321 slides along the rotating wheel 313, and the lower end of the limiting plate 322 abuts against the guide plate 32 to prevent derailment.

[0058] The mounting base 41 includes: a mounting base 411, a pair of first vertical mounting plates 412 mounted on the mounting base 411, a first rotating rod 413 mounted on the pair of first vertical mounting plates 412, and a mounting body 414 mounted on the first rotating rod 413. The mounting base 411 is provided with screw holes, and the mounting base 411 is installed by bolts through the screw holes. The automatic cylinder 42 is installed on the mounting base 411 through the mounting body 414.

[0059] The automatic cylinder 42 is hinged to the first rotating rod 413 of the mounting base 414.

[0060] The connector 43 includes: a first connecting block 431, a pair of second vertical mounting plates 432 mounted on the first connecting block 431, a second rotating rod 433 mounted on the pair of second vertical mounting plates 432, and a connecting seat 434 mounted on the second rotating rod 433. The connecting seat 434 is provided with two pairs of fixing screw holes, and the connecting seat 434 is connected to the connecting support plate 323 by bolts at the fixing screw holes.

[0061] The extension end of the automatic cylinder 42 pushes the connector 43, causing the first connecting block 431 to drive the second rotating rod 433 to deflect. The connecting seat 434 is fixed to the connecting support plate 323 of the guide plate 32 by bolts.

[0062] The upper platform clamping equipment fixing plate 50 is a horizontal mounting plate.

[0063] Connect the automatic cylinder 42 to compressed air and connect it to the position sensor signal line. Fix the special welding fixture to the surface of the upper platform fixture equipment fixing plate 50 with bolts. Place the workpiece to be welded, such as a flange, into the fixture slot and lock the pneumatic gripper. Set the elevation angle on the control panel. The system automatically calculates the target stroke of the automatic cylinder 42. The cylinder rod of the automatic cylinder 42 extends, pushing the connecting piece 43 to move along the oblique trajectory. The connecting seat 434 pulls the guide plate 32, causing its arc-shaped guide opening to roll along the guide wheel 31. The upper platform fixture equipment fixing plate 50, which is fixed to the upper surface of the guide plate 32, rotates synchronously, and the workpiece angle changes in real time. After the automatic cylinder 42 reaches the set stroke, it self-locks. The robot welding gun is vertically aligned with the weld seam of the current workpiece. Welding is completed. The cylinder rod of the automatic cylinder 42 retracts, and the guide plate 32 slides back to the horizontal position along the arc-shaped groove. Release the fixture, take out the finished workpiece, and prepare for the next cycle. It is very convenient.

[0064] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. Variable angle tooling for arc welding, including: A pair of bases (10); Each of the bases (10) has two pairs of mounting screw holes; Its characteristic is that it further includes: Support assembly (20), guide assembly (30) mounted on support assembly (20), placement assembly (40) mounted on guide assembly (30) and upper platform clamping device fixing plate (50) mounted on upper surface of placement assembly (40); The support assembly (20) includes: a pair of vertical support plates (21); Each of the vertical support plates (21) is mounted on the upper surface of the corresponding base (10); The guide assembly (30) includes: two pairs of guide wheels (31) and guide plates (32) mounted on the two pairs of guide wheels (31); Each of the vertical support plates (21) is provided with a pair of circular openings, and each of the guide wheels (31) is installed on the corresponding circular opening. The guide plate (32) is provided with two pairs of arc-shaped guide openings, and the guide plate (32) is installed on the corresponding vertical support plate (21) through the two pairs of guide wheels (31). The placement assembly (40) includes: a mounting base (41), an automatic cylinder (42) mounted on the mounting base (41), a connector (43) mounted on the telescopic end of the automatic cylinder (42), and a connecting seat (44) mounted on the connector (43); The upper platform fixture device fixing plate (50) is installed on the upper surface of the pair of guide plates (32), so the upper platform fixture device fixing plate (50) is connected to the connecting seat (44).

2. The variable angle tooling for arc welding a workpiece of claim 1, wherein, The vertical support plate (21) includes: a support plate (211) and three auxiliary support plates (212) installed on the support plate (211); One end of each of the three auxiliary support plates (212) is connected to the support plate (211), and the other end of each of the three auxiliary support plates (212) is connected to the base (10).

3. The variable angle tooling for arc welding parts according to claim 1, characterized in that, The guide wheel (31) includes: an annular mounting plate (311), a rotating rod (312) mounted on the annular mounting plate (311), and a rotating wheel (313) mounted on the rotating rod (312). The rotating wheel (313) and the annular mounting plate (311) are located on both sides of the rotating rod (312). The rotating wheel (313) is located inside the vertical support plate (21), and the annular mounting plate (311) is located outside the vertical support plate (21).

4. The variable angle tooling for arc welding a workpiece of claim 1, wherein, The guide plate (32) includes: a pair of vertical guide plates (321), a limiting plate (322) installed on each of the vertical guide plates (321), and a connecting support plate (323) installed on the pair of vertical guide plates (321); Each of the vertical guide plates (321) has a pair of arc-shaped guide openings on its side surface, the arc-shaped guide openings being matched with the guide wheel (31), each of the limiting plates (322) being installed at the lower end of the side surface of the corresponding vertical guide plate (321), and the connecting support plate (323) being installed between the pair of vertical guide plates (321).

5. The variable angle tooling for arc welding a workpiece of claim 1, wherein, The mounting base (41) includes: a mounting base (411), a pair of first vertical mounting plates (412) mounted on the mounting base (411), a first rotating rod (413) mounted on the pair of first vertical mounting plates (412), and a mounting body (414) mounted on the first rotating rod (413). The mounting base (411) is provided with screw holes, and the mounting base (411) is installed by bolts through the screw holes. The automatic cylinder (42) is installed on the mounting base (411) through the mounting body (414).

6. The variable angle tooling for arc welding a workpiece of claim 1, wherein, The connector (43) includes: a first connecting block (431), a pair of second vertical mounting plates (432) mounted on the first connecting block (431), a second rotating rod (433) mounted on the pair of second vertical mounting plates (432), and a connecting seat (434) mounted on the second rotating rod (433). The connecting seat (434) is provided with two pairs of fixing screw holes, and the connecting seat (434) is connected to the connecting support plate (323) by bolts at the fixing screw holes.

7. The variable angle tooling for arc welding a workpiece of claim 1, wherein, The upper platform clamping equipment fixing plate (50) is a horizontal mounting plate.

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