Positioning clamp for laser cladding of long-strip-shaped middle plate

Abstract

The positioning clamp for laser cladding of the long-strip-shaped middle plate comprises a supporting seat plate fixed to a laser cladding platform, a plurality of vertical plates are evenly distributed on the long edge of one side of the supporting seat plate, the vertical plates and the supporting seat plate form an L-shaped structure, and the inner side plate edge of a thin plate placed on the plate face of the supporting seat plate makes contact with the inner walls of the vertical plates. A plurality of end plates are fixed to the long edge of the other side of the supporting seat plate, and on the premise that the thin plate is flattened and positioned, jacking screws arranged on the end plates abut against the edge of the other long edge of the thin plate, so that the thin plate is positioned and fixed on the supporting seat plate. According to the utility model, a plurality of vertical plates and end plate structures provided with jacking screws are respectively arranged on the two long sides of the supporting seat plate, so that a stable and reliable positioning and fixing structure is provided for a thin plate, the defect that the thin plate is warped and deformed due to heating in the cladding process is overcome, the flatness of the thin plate in the cladding process is ensured, and the uniformity of a cladding layer is ensured; and the laser cladding quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of positioning fixture technology, specifically relating to a positioning fixture for laser cladding of a long strip plate. Background Technology

[0002] Laser cladding, also known as laser bonding or laser coating, is a novel surface modification technology. It involves adding a cladding material to the surface of a substrate and then using a high-energy-density laser beam to fuse the material with a thin layer on the substrate surface, forming a metallurgically bonded cladding layer. When cladding long, narrow plates, due to their thinness and length, without a reliable positioning and clamping structure, the cladding material expands due to heat during the laser cladding process, generating stress between the thin plate and the cladding material. This leads to edge warping, severely affecting the dimensional accuracy and surface flatness of the thin plate, which is detrimental to subsequent processing. Therefore, to improve the accuracy of workpieces during laser cladding, it is necessary to develop a positioning fixture for laser cladding of long, narrow plates. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a positioning fixture for laser cladding of long strip plates. By setting multiple vertical plates and end plate structures with tightening screws on the two long sides of the support base plate, a stable and reliable positioning and fixing structure is provided for the thin plate. This solves the problem of the thin plate warping and deformation due to heat during the cladding process, ensures the flatness of the thin plate during the cladding process, ensures the uniformity of the cladding layer, and improves the quality of laser cladding.

[0004] The technical solution adopted in this utility model is: a positioning fixture for laser cladding of long strip plates, including a support plate fixed on the laser cladding platform. Multiple vertical plates forming an L-shape are evenly distributed on one long side of the support plate, and the inner edge of the thin plate placed on the surface of the support plate contacts the inner wall of the vertical plate. Multiple end plates are fixed on the other long side of the support plate, and the thin plate is pressed and positioned by a tightening screw on the end plate, which presses against the other long edge of the thin plate to achieve positioning and fixing of the thin plate on the support plate.

[0005] The vertical plate has a notch on its inner wall, and the stepped wall formed at the notch contacts the inner edge of the thin plate.

[0006] Preferably, the upper surface of the vertical plate is designed as an inclined surface to avoid the spray gun.

[0007] Preferably, the upper surface of the vertical plate is not higher than the upper plane of the thin plate.

[0008] Furthermore, the thin plate is flattened and positioned by a pressure plate placed on the surface of the thin plate and multiple sets of pressing components fixed on the laser cladding platform and used to press the pressure plate downward.

[0009] Furthermore, the clamping assembly includes a T-bolt and a pressure rod fixed at the lower end to the laser cladding platform. The pressure rod is located above the pressure plate and is fitted onto the T-bolt, and the nut connected to the T-bolt clamps the pressure rod onto the pressure plate.

[0010] Advantages of this utility model compared to the prior art:

[0011] 1. This technical solution provides a stable and reliable positioning and fixing structure for thin plates by setting multiple vertical plates and end plates with tightening screws on the two long sides of the support base plate. This solves the problem of thin plates warping and deforming due to heat during the cladding process, ensures the flatness of the thin plates during the cladding process, ensures the uniformity of the cladding layer, and improves the quality of laser cladding.

[0012] 2. The upper surface of the vertical plate in this technical solution adopts an inclined surface or a design structure that is not higher than the surface of the thin plate, to ensure that the spray gun can smoothly deliver the cladding material to the thin plate, thereby ensuring the uniformity and consistency of the cladding layer and improving the quality of the coating.

[0013] 3. This technical solution provides a notch on the inner wall of the vertical plate to form a stepped wall, which helps to distribute pressure evenly on the contact surface when clamping thin plates, thereby improving clamping stability and reliability and preventing the thin plates from warping or deforming.

[0014] 4. This technical solution has a simple structure, novel design, convenient and quick assembly and disassembly, reliable positioning and clamping structure, good flatness of thin plates, improves cladding quality, and has high application value. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the structure of this utility model when the lifting pressure plate is removed;

[0017] Figure 3 for Figure 2 Sectional view of AA. Detailed Implementation

[0018] The following will be based on the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a 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. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Positioning fixtures for laser cladding of long strip-shaped plates, such as Figure 1-3 As shown, the system includes a support plate 2 fixed to a laser cladding platform. Multiple vertical plates 7 forming an L-shape are evenly distributed along one long side of the support plate 2. The inner edge of a thin plate 1 placed on the surface of the support plate 2 contacts the inner wall of the vertical plates 7. The thin plate 1 is horizontally supported on the support plate 2. Multiple end plates 3 are fixed along the other long side of the support plate 2. Under the condition of being flattened and positioned, the thin plate 1 is pressed against the other long edge of the end plate 3 by tightening screws 4 located on the end plates 3. The thin plate 1 is now positioned and fixed on the support plate 2. The structure used to flatten and fix the thin plate 1 is removed, and the cladding process can then be carried out. By setting multiple vertical plates 7 and end plates 3 with tightening screws 4 on the two long sides of the support plate 2, a stable and reliable positioning and fixing structure is provided for the thin plate 1. This solves the problem of the thin plate 1 warping and deforming due to heat during the cladding process, ensures the flatness of the thin plate 1 during the cladding process, ensures the uniformity of the cladding layer, and improves the quality of laser cladding.

[0022] The vertical plate 7 has a notch 8 on its inner wall, and the stepped wall formed at the notch 8 contacts the inner edge of the thin plate 1. By setting a notch on the inner wall of the vertical plate 7 to form a stepped wall, it is beneficial to distribute the pressure evenly on the contact surface when clamping the thin plate 1, thereby improving the clamping stability and reliability and avoiding the thin plate warping and deformation. This structure can ensure the positioning reliability of the thin plate 1, thereby ensuring the stable bonding between the cladding material and the thin plate 1.

[0023] In order for the spray gun to run smoothly above the thin plate 1, the upper end face of the vertical plate 7 is designed as an inclined surface to avoid the spray gun; or the upper end face of the vertical plate 7 is not higher than the upper surface of the thin plate 1. The design structure of the upper end face of the vertical plate 7 being an inclined surface or not higher than the upper surface of the thin plate 1 ensures that the spray gun can smoothly deliver the cladding material to the thin plate 1, thereby ensuring the uniformity and consistency of the cladding layer and improving the quality of the cladding layer.

[0024] When the thin plate 1 is flattened and positioned, the thin plate 1 is flattened and positioned by a pressure plate 5 placed on the upper surface of the thin plate 1 and multiple sets of clamping components fixed to the laser cladding platform and used to press the pressure plate 5 downward. Specifically, the clamping components include a T-bolt and a pressure rod 6 fixed at the lower end to the laser cladding platform. The pressure rod 6 is located above the pressure plate 5 and is fitted onto the T-bolt. The nuts connected to the T-bolt are adapted to press the pressure rod 6 onto the pressure plate 5. One long edge of the thin plate 1 abuts against the inner wall of the vertical plate 7. Under the premise that the pressure plate 5 flattens and positions the thin plate 1, the top tightening screw 4 is rotated so that its end abuts against the other long edge of the thin plate 1 to fix the thin plate 1. This can ensure the flatness of the thin plate 1 during the positioning and fixing process. After the thin plate 1 is fixed, the pressure plate 5 can be removed. The number of multiple sets of clamping components can be increased or decreased as needed. The multiple sets of clamping components can be distributed at both ends of the pressure plate 5 and between adjacent end plates 3.

[0025] This technical solution has a simple structure, novel design, convenient and quick assembly and disassembly, reliable positioning and clamping structure, good flatness of thin plates, improved cladding quality, and high application value.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning fixture for laser cladding of elongated medium plates, characterized in that: The support base plate (2) is fixed on the laser cladding platform. Multiple vertical plates (7) are evenly distributed on one long side of the support base plate (2) to form an L-shaped structure with it. The inner edge of the thin plate (1) placed on the plate surface of the support base plate (2) is in contact with the inner wall of the vertical plate (7). Multiple end plates (3) are fixed on the other long side of the support base plate (2). Under the premise of flattening and positioning, the thin plate (1) is pressed against the other long edge of the thin plate (1) by the tightening screw (4) provided on the end plate (3), so as to realize the positioning and fixing of the thin plate (1) on the support base plate (2).

2. The positioning fixture for laser cladding of elongated medium plates according to claim 1, characterized in that: The vertical plate (7) has a notch (8) on its inner wall, and the stepped wall formed at the notch (8) is in contact with the inner edge of the thin plate (1).

3. The positioning fixture for laser cladding of elongated medium plates according to claim 2, characterized in that: The upper surface of the vertical plate (7) is designed as an inclined surface to avoid the spray gun.

4. The positioning fixture for laser cladding of elongated medium plates according to claim 2, characterized in that: The upper surface of the vertical plate (7) is not higher than the upper surface of the thin plate (1).

5. The positioning fixture for laser cladding of elongated medium plates according to any one of claims 1-4, characterized in that: The thin plate (1) is flattened and positioned by a pressure plate (5) placed on the upper surface of the thin plate (1) and multiple sets of pressing components fixed on the laser cladding platform and used to press the pressure plate (5) downward.

6. The positioning fixture for laser cladding of elongated medium plates according to claim 5, characterized in that: The clamping assembly includes a T-bolt and a pressure rod (6) with the lower end fixed to the laser cladding platform. The pressure rod (6) is located above the pressure plate (5) and is fitted onto the T-bolt. The nut connected to the T-bolt clamps the pressure rod (6) onto the pressure plate (5).

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