Adjustable fixing clamp for welding metal parts

Abstract

The utility model discloses an adjustable fixing clamp for welding metal parts, which belongs to the field of part welding clamps, a plurality of sleeves are embedded in a clamp cavity, openings of the sleeves are aligned with kidney-shaped holes and are fixed on corresponding movable clamps through second fasteners, an elastic abutting strip is arranged on the side wall of each sleeve, and the elastic abutting strips are fixed on the movable clamps through the second fasteners. And the elastic abutting strip abuts against the metal part to be welded. The adjusting screw rod is flexibly matched with the movable clamp kidney-shaped hole, accurate fine adjustment of the clamping position is achieved, the welding requirements of metal parts of multiple sizes and shapes are met, and the universality and adaptability of the clamp are improved. A fine adjustment mechanism ensures welding precision and reduces welding defects. The clamping force balance and stability are enhanced through triangular distribution and the L-shaped cross section design, and the anti-skid performance is improved through the anti-skid rubber sleeve. The C-shaped structure is tightly attached to the metal part, and the surface rubber strip protects the surface of the part. The sleeve and the elastic abutting strip are integrally designed, so that the compactness and durability of the structure are enhanced, and the assembly efficiency and the welding quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of parts welding fixtures, in particular to an adjustable fixing fixture for welding metal parts. Background Art

[0002] Metal welding fixtures play a central role in the welding process, securing the workpiece and ensuring a precise and stable welding operation. These fixtures offer a variety of designs and mechanisms to accommodate diverse welding requirements and the shapes and sizes of metal parts.

[0003] In modern industrial manufacturing, welding fixtures are irreplaceable for welding tubular metal parts. They effectively secure the parts, ensuring a stable and precise welding process. Linear clamping, in particular, is a fundamental and common method. It applies balanced pressure to the outer wall of the tubular part, expanding the contact surface and effectively preventing misalignment during welding.

[0004] However, it's worth noting that linear clamping still faces challenges in preventing part slippage. The high temperatures generated during welding, resulting in thermal expansion of the material, the formation of a weld pool, and contraction forces during cooling, can all threaten the positional stability of the part. In these cases, linear clamping alone may not provide sufficient restraint to completely eliminate minor part slippage during welding.

[0005] This challenge is particularly acute for tubular parts with larger diameters or thinner walls, as linear clamping may not provide sufficient support, significantly increasing the risk of these parts slipping during the welding process. Utility Model Content

[0006] The main purpose of the utility model is to provide an adjustable fixing fixture for welding metal parts, which can effectively solve the problems raised in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An adjustable fixing fixture for welding metal parts, comprising a top frame, an adjusting screw, a first movable clamp, a second movable clamp, an adjusting clamp, a waist hole, and a first fastener, wherein the adjusting screw is mounted on the top frame, the adjusting clamp is mounted on the lower end of the adjusting screw, the first movable clamp and the second movable clamp are respectively connected to the two ends of the top frame, waist holes are formed on the end surfaces of the first movable clamp and the second movable clamp, and the adjusting clamp is mounted in the waist holes of the movable clamps via the first fastener;

[0009] The ends of the first movable clamp and the second movable clamp are provided with a first clamping part, the adjusting clamp is provided with a second clamping part, the first clamping part and the second clamping part are provided with a tightening screw, and the first clamping part, the second clamping part and the tightening screw cooperate with each other to clamp the metal parts to be welded;

[0010] A clamp cavity is formed in the clamps of the first movable clamp and the second movable clamp, and a plurality of sleeves are embedded in the clamp cavity. The sleeve openings are aligned with the waist holes and are fixed to the corresponding movable clamps through second fasteners. The side walls of each sleeve are provided with elastic tightening strips, which press against the metal parts to be welded through the elastic tightening strips.

[0011] Optionally, the two first clamping parts and the second clamping parts are arranged in a triangular distribution, the cross-sections of the first clamping parts and the second clamping parts are designed in an "L" shape, and the surfaces of the two first clamping parts and the second clamping parts are covered with anti-slip rubber sleeves;

[0012] Optionally, the first clamping portion and the second clamping portion are perpendicular to the movable clamp and the adjustable clamp, and the first clamping portion and the second clamping portion are threadedly connected to the tightening screw;

[0013] Optionally, the adjusting clip is provided with a sliding groove adapted to the waist hole, and the width of the sliding groove is the same as the diameter of the waist hole, and a rubber strip is provided at the opening of the waist hole and the sliding groove;

[0014] Optionally, the first fastener and the second fastener are both composed of a screw, a nut and an anti-slip washer, the screw passes through the waist hole and the slide groove and is sleeved with the nut and the anti-slip washer, and the sleeve is connected to the screw by a thread;

[0015] Optionally, the sleeve and the elastic pressing strip are designed as one piece, the elastic pressing strip is designed in a "C" shape, and a rubber strip is provided on the surface of the elastic pressing strip.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this utility model, the flexible coordination of the adjustment screw and the waist hole on the movable clamp allows for precise fine-tuning of the clamping position to meet the welding requirements of metal parts of different sizes and shapes, greatly improving the versatility and adaptability of the clamp. This fine-tuning mechanism not only ensures welding accuracy but also reduces welding defects caused by an inappropriate clamp.

[0018] The triangular layout and L-shaped cross-section of the first and second clamping parts effectively improves the balance and stability of the clamping force, ensuring that metal parts will not shift or deform due to unstable clamping during the welding process. Furthermore, the use of anti-slip rubber sleeves further enhances the anti-slip performance of the clamping parts, improving safety and comfort during operation.

[0019] Its "C"-shaped structure allows the clamping strip to closely conform to the contours of metal parts, achieving a secure clamp even when faced with complex shapes or curved surfaces. The addition of a surface rubber strip not only increases friction but also protects the surface of the metal part, preventing scratches or damage caused by over-tightening and reducing slippage of tubular metal parts.

[0020] The integrated design of the sleeve and elastic retaining strip not only enhances the compactness and durability of the structure, but also simplifies the assembly process and improves work efficiency. During the welding process, the synergistic effect of the sleeve and elastic retaining strip ensures a secure clamping of metal parts, providing a strong guarantee for high-quality welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a diagram showing the overall structure of the utility model;

[0023] Figure 3 This is a front view of the overall structure of the utility model;

[0024] Figure 4 This is a diagram showing the movable clamp, the adjustable clamp and the elastic tightening strip of the present invention;

[0025] Figure 5 for Figure 4 Enlarged schematic diagram of point A in the middle.

[0026] In the figure: 1. Top frame; 2. Adjusting screw; 3. First movable clamp; 4. Second movable clamp; 5. Adjusting clamp; 6. Waist hole; 7. First fastener; 8. First clamping part; 9. Second clamping part; 10. Second fastener; 11. Sleeve; 12. Elastic tightening strip; 13. Clamping cavity; 14. Tightening screw. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figure 1 - Figure 5 As shown, an adjustable fixture for welding metal parts is composed of multiple precision components. An adjustment screw 2 is cleverly installed on a top frame 1, with an adjustment clamp 5 fixed to its lower end. A first movable clamp 3 and a second movable clamp 4 are securely attached to each end of the top frame 1, each with a waist hole 6 cleverly defined on its end face. The adjustment clamp 5, through the precise fit of a first fastener 7, is flexibly installed in the waist hole 6 of the movable clamp, achieving fine-tuning and stable positioning.

[0029] To more effectively clamp the metal parts to be welded, the ends of the first and second movable clamps 3 and 4 are each equipped with a first clamping portion 8, while the adjustable clamp 5 is equipped with a second clamping portion 9. These two clamping portions are not only designed with a tightening screw 14, but are also cleverly arranged in a triangular shape to ensure balanced and stable clamping force. Furthermore, their L-shaped cross-section further enhances the clamping effect. Furthermore, to enhance operational comfort and anti-slip properties, the surfaces of both the first and second clamping portions 8 and 9 are covered with anti-slip rubber sleeves.

[0030] In the design of the clamping parts, we focused on combining detail with practicality. The first and second clamping parts 8, 9, and the movable and adjustable clamps 5 are all perpendicular to each other. This not only improves the overall stability of the clamp but also makes the clamping process smoother. The first and second clamping parts 8, 9, and the clamping screw 14 are threaded together to ensure precise control of the clamping force.

[0031] The slot on the adjustment clip 5 perfectly fits the waist hole 6, and its width is the same as the diameter of the waist hole 6, making the adjustment process smoother and more unobstructed. At the same time, a rubber strip is cleverly set at the opening of the waist hole 6 and the slot to further improve the sealing and durability.

[0032] The fasteners used are a high-quality combination of screws, nuts, and non-slip washers. Both the first and second fasteners 7 and 10 are secured by threading the screws through the waist holes 6, through the grooves, and then fitted with nuts and non-slip washers. The sleeve 11 is threaded onto the screws, ensuring a secure position within the clamping cavity 13.

[0033] The sleeve 11 and elastic retaining strip 12 are integrated into one body, making the overall structure more compact and durable. The elastic retaining strip 12 is C-shaped and features a rubber strip on its surface to enhance friction and provide protection. During the clamping process, the elastic retaining strip 12 firmly presses against the metal parts to be welded, ensuring precision and stability.

[0034] Instructions: Center the metal part to be welded in the fixture, ensuring initial alignment with all fixture components. Check that all components (including the top frame 1, first movable clamp 3, second movable clamp 4, and adjustment clamp 5) are securely installed and free of looseness. Gently rotate the adjustment screw 2 to move the adjustment clamp 5 downward until it approaches the metal part to be welded. Fine-tune the first fastener 7 to slide the adjustment clamp 5 into the proper position within the waist hole 6, preliminarily determining the clamping area. Once the adjustment clamp 5 is positioned, the sleeve 11 and the elastic retaining strip 12 (designed in a "C" shape) move with the adjustment clamp 5 to the desired clamping position. The "C" shape and rubber strip on the elastic retaining strip 12 ensure that it automatically and tightly conforms to the contours of the metal part to be welded. Continue rotating the adjustment screw 2 to move the adjustment clamp 5 downward further until the elastic retaining strip 12 fully contacts the metal part, achieving a secure clamping position.

[0035] Use the clamping screw 14 to fine-tune the first clamping portion 8 and the second clamping portion 9 to ensure uniform and stable clamping force. While rotating the clamping screw 14, carefully observe the clamping of the metal parts to avoid overtightening, which may cause deformation or damage. After confirming that the clamping is secure and the metal parts are correctly positioned, use the second fastener 10 to further tighten the sleeve 11 to the screw to ensure the stability of the clamp during the welding process. Once the welding operation begins, the clamp will maintain a secure grip on the metal parts, ensuring welding accuracy and stability.

[0036] Adjustment process: By rotating the adjusting screw 2, the adjusting clamp 5 is moved up and down under the guidance of the top frame 1, thereby adjusting the clamping position. By utilizing the adaptability of the waist hole 6 and the slide groove on the adjusting clamp 5, combined with the fine-tuning function of the first fastener 7, precise adjustment of the clamping position can be achieved. Rotate the tightening screw 14 and adjust the clamping force through its threaded connection with the clamping part; observe the clamping state of the metal parts to ensure that the clamping force is neither too tight nor too loose to ensure smooth welding. For metal parts of different shapes and sizes, the degree of curvature of the elastic tightening strip 12 can be adjusted to adapt to their contour changes; the "C" shape design of the elastic tightening strip 12 and the surface rubber strip are used to ensure that it always fits tightly to the surface of the metal parts during the clamping process.

[0037] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the electric fusion connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0038] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A fixing fixture for welding adjustable metal parts, comprising a top frame (1), an adjusting screw (2), a first movable clamp (3), a second movable clamp (4), an adjusting clamp (5), a waist hole (6) and a first fastener (7), wherein the adjusting screw (2) is mounted on the top frame (1), the adjusting clamp (5) is mounted on the lower end of the adjusting screw (2), the first movable clamp (3) and the second movable clamp (4) are respectively connected to the two ends of the top frame (1), the end surfaces of the first movable clamp (3) and the second movable clamp (4) are provided with waist holes (6), and the adjusting clamp (5) is mounted in the waist holes (6) of the movable clamps through the first fastener (7), characterized in that: The ends of the first movable clamp (3) and the second movable clamp (4) are provided with a first clamping portion (8), the adjusting clamp (5) is provided with a second clamping portion (9), and the first clamping portion (8) and the second clamping portion (9) are provided with a tightening screw (14), and the metal parts to be welded are clamped by the first clamping portion (8), the second clamping portion (9) and the tightening screw (14) cooperating with each other; A clamp cavity (13) is formed in the clamps of the first movable clamp (3) and the second movable clamp (4), and a plurality of sleeves (11) are embedded in the clamp cavity (13). The openings of the sleeves (11) are aligned with the waist holes (6) and are fixed to the corresponding movable clamps through the second fasteners (10). The side wall of each sleeve (11) is provided with an elastic pressing strip (12), which presses against the metal parts to be welded through the elastic pressing strip (12).

2. The adjustable metal component welding fixture according to claim 1, characterized in that: The two first clamping parts (8) and the second clamping parts (9) are arranged in a triangular distribution, the cross sections of the first clamping parts (8) and the second clamping parts (9) are designed in an "L" shape, and the surfaces of the two first clamping parts (8) and the second clamping parts (9) are covered with anti-slip rubber sleeves.

3. The adjustable metal component welding fixture according to claim 2, characterized in that: The first clamping portion (8) and the second clamping portion (9) are arranged perpendicularly to the movable clamp and the adjusting clamp (5), and the first clamping portion (8) and the second clamping portion (9) are threadedly connected to the tightening screw (14).

4. The adjustable metal component welding fixture according to claim 3, characterized in that: The adjusting clamp (5) is provided with a slide groove adapted to the waist hole (6), and the width of the slide groove is the same as the diameter of the waist hole (6). A rubber strip is provided at the opening of the waist hole (6) and the slide groove.

5. The adjustable metal component welding fixture according to claim 4, characterized in that: The first fastener (7) and the second fastener (10) are both composed of a screw, a nut and an anti-slip gasket. The screw passes through the waist hole (6) and the slide groove and is sleeved with the nut and the anti-slip gasket. The sleeve (11) is connected to the screw through a thread.

6. The adjustable metal component welding fixture according to claim 5, characterized in that: The sleeve (11) and the elastic pressing strip (12) are designed as an integral whole. The elastic pressing strip (12) is designed in a "C" shape, and a rubber strip is provided on the surface of the elastic pressing strip (12).

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