A positioning structure for high-speed laser cladding of a workpiece

Abstract

The utility model relates to mechanical engineering and manufacturing technical field, concretely is a kind of positioning structure for workpiece high-speed laser cladding, including operation platform, the upper end of operation platform is fixed with fixed base, and the inside bearing of fixed base is connected with screw rod, the both ends of screw rod are fixed with gear, the surface of fixed base is slidably equipped with protective cover, and the both ends one side of protective cover is fixed with rack. The utility model drives two sets of gear to rotate by the rotation of screw rod, to make its surface and the surface of rack meshing rotation, when the workpiece inside equipment is fixed, gear is separated from rack, protective cover is automatically lowered at this moment, makes its inner wall and the surface of fixed base are pasted, and by the use of rubber pad cooperation, avoid the collision damage situation when the both pasting, by the above operation, can avoid workpiece to produce slag or splashing in cladding process to cause staff to be scalded or uncomfortable.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering and manufacturing technology, specifically a positioning structure for high-speed laser cladding of workpieces. Background Technology

[0002] In laser cladding, precise control of workpiece positioning accuracy is crucial. When performing cladding operations on complex curved surfaces or requiring high precision, it is essential to ensure the relative position of the workpiece and the laser beam remains stable. Furthermore, when processing easily deformable materials or thin-walled workpieces, it is necessary to avoid workpiece deformation caused by improper clamping force. Therefore, the workpiece positioning structure becomes a key component directly affecting the quality of the cladding layer, processing accuracy, and process stability.

[0003] In current laser cladding positioning operations, workers usually fix the workpiece individually with a fixture. Due to thermal deformation and vibration during the cladding process, the workpiece often experiences slight displacement or angular deviation. The high-temperature slag and metal spatter inevitably generated during the processing pose multiple threats to the working environment and personnel safety, and can also burn workers.

[0004] However, the applicant believes that the shortcomings are as follows: 1. When using the equipment, fixed clamps are usually used to fix workpieces of the same size, which is inconvenient for fixing workpieces of different sizes within the field, thus reducing the applicability of the equipment; 2. When the equipment is performing cladding processing, molten slag or splashes may fall on the workers and cause burns. At the same time, the area needs to be cleaned up after the operation, which increases the labor intensity of the workers.

[0005] To address these issues, we propose a positioning structure for high-speed laser cladding of workpieces. Utility Model Content

[0006] The purpose of this invention is to provide a positioning structure for high-speed laser cladding of workpieces, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning structure for high-speed laser cladding of workpieces, including an operating table. The upper end of the operating table is fixed with a fixed base, and the internal bearing of the fixed base is connected to a lead screw. Both ends of the lead screw are fixed with gears. A protective cover is slidably fitted on the surface of the fixed base, and a rack is fixed on one side of both ends of the protective cover. The laser generator body is installed on the upper end of the inner wall of the fixed base.

[0008] Preferably, both ends of the lead screw are threaded, and both ends of the lead screw are slidably fitted with adjusting plates. By rotating the lead screw, the two sets of adjusting plates can be moved synchronously inward or outward.

[0009] Preferably, the upper end of the adjustment plate is slidably inserted into the interior of the fixed base, and a clamping block is fixed to the lower inner wall of the adjustment plate. The clamping block is fixed with anti-slip blocks in a circular array. The use of the anti-slip blocks can prevent the equipment from shaking or shifting, thereby improving the stability of the equipment.

[0010] Preferably, one end of one set of gears is fixed with a rocker arm, and one end of the fixed base is provided with a sliding groove, the surface of which is in contact with the surface of the rocker arm. When the protective cover moves downward, it can avoid collision with the rocker arm.

[0011] Preferably, the surface of the gear meshes with the surface of the rack, so that when the gear starts to rotate, the rack can drive the protective cover to move downward.

[0012] Preferably, both ends of the protective cover are fitted with polycarbonate, and the polycarbonate is transparent. Through the above operation, the equipment can not only isolate the molten slag or spatter generated by the laser, but also allow the staff to better observe the laser operation.

[0013] Preferably, the lower surface of the protective cover and the upper end of the inner wall are both provided with rubber pads. By using the rubber pads in conjunction, when the upper end of the inner wall of the protective cover is in contact with the upper end of the fixing seat, its buffering force can be increased, avoiding wear and tear caused by collision.

[0014] This utility model provides a positioning structure for high-speed laser cladding of workpieces, which has the following beneficial effects: By rotating the rocker arm, the lead screw is driven to rotate, thereby causing the two sets of adjusting plates to move inward synchronously. When the surface of the anti-slip block is in contact with the surface of the workpiece, the position of the workpiece can be fixed. Through the above operation, workpieces of different sizes within the field can be fixed, thereby improving the applicability of the equipment.

[0015] The rotation of the lead screw drives two sets of gears to rotate, causing their surfaces to mesh with the surface of the rack. When the workpiece inside the equipment is being fixed, the gears disengage from the rack, and the protective cover automatically descends, bringing its inner wall into contact with the surface of the fixing seat. The use of rubber pads prevents collision damage during this contact. This process avoids slag or splashes from the workpiece during the cladding process, preventing burns or discomfort to workers. After the cladding is completed, only the equipment area needs to be cleaned, reducing the workload of the workers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the fixing base of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the fixing base of this utility model; Figure 4 This is a three-dimensional structural diagram of the adjusting plate of this utility model. Figure 5 This is a three-dimensional structural diagram of the rack of this utility model.

[0018] In the diagram: 1. Operating table; 2. Fixed base; 3. Lead screw; 4. Gear; 5. Adjusting plate; 6. Clamping block; 7. Protective cover; 8. Rack; 9. Laser generator body. Detailed Implementation

[0019] 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.

[0020] This embodiment proposes a positioning structure for high-speed laser cladding of workpieces. Example 1

[0021] like Figures 1 to 4 As shown, this embodiment proposes a positioning structure for high-speed laser cladding of workpieces, including an operating table 1. A fixed base 2 is fixed to the upper end of the operating table 1, and a lead screw 3 is connected to the bearing inside the fixed base 2. The surfaces of both ends of the lead screw 3 are threaded, and the two sets of threads are opposite to each other. Adjusting plates 5 are slidably sleeved on both ends of the lead screw 3. The upper end of the adjusting plate 5 is slidably inserted into the interior of the fixed base 2. A clamping block 6 is fixed to the inner wall of the lower end of the adjusting plate 5, and anti-slip blocks are fixed in a circular array on the clamping block 6. Anti-slip sleeves are fixed to both ends of the adjusting plate 5, and the anti-slip sleeves are made of stainless steel. The other ends of the two sets of anti-slip sleeves are respectively fixed to the inner walls of the fixed base 2. The protective sleeve is slidably sleeved on the surface of the lead screw 3, and the bottom surface of the protective sleeve that retracts is higher than the diameter height of the lead screw 3.

[0022] In the above embodiments, the lead screw 3 and the opposing threads are used in conjunction. When the lead screw 3 is rotated, the two sets of adjusting plates 5 can be driven to move inward synchronously or move outward. This can fix the position of workpieces of different sizes in the same field, thereby improving the applicability of the equipment. With the cooperation of the clamping block 6 and the anti-sliding block, when the clamping block 6 is close to the workpiece position, the anti-sliding block is in contact with the workpiece, thereby fixing the position of the workpiece. At the same time, it can increase the friction between the two and prevent the workpiece from shaking or shifting. With the cooperation of the protective sleeve, the slag generated during the workpiece cladding can be prevented from splashing into the threads of the lead screw 3, which would cause the adjusting plate 5 to be unable to move or the lead screw 3 to be damaged. The height of the protective sleeve retracted as described above can prevent the protective sleeve from rubbing against the surface of the lead screw 3 when it is retracted. Example 2

[0023] like Figure 3 and Figure 5 As shown, based on the same concept as the above embodiment, this embodiment also proposes: both ends of the lead screw 3 are fixed with gears 4, the surface of the fixed seat 2 is slidably fitted with a protective cover 7, and one side of both ends of the protective cover 7 is fixed with a rack 8, the upper end of the inner wall of the fixed seat 2 is installed with a laser generator body 9, one end of a set of gears 4 is fixed with a rocker arm, one end of the fixed seat 2 is provided with a sliding groove, and the surface of the sliding groove is in contact with the surface of the rocker arm, the surface of the gear 4 is meshed with the surface of the rack 8, both ends of the protective cover 7 are installed with polycarbonate, and the polycarbonate is transparent, the lower end surface of the protective cover 7 and the upper end of the inner wall are provided with rubber pads, the material of the protective cover 7 is fiber reinforced plastic, which is high in strength, corrosion resistant and lightweight, both ends of the operating table 1 are engaged with rotating rods, and the upper end of the rotating rod is provided with a limiting plate, and the upper surface of one end of the limiting plate is in contact with the lower end surface of the protective cover 7, and the center point of the bottom end of the limiting plate is fixedly connected to the midpoint of the side end of the upper end of the rotating rod.

[0024] The laser generator body 9 used in this application is a German Trumpf or Raycus laser model, which is a product that can be purchased directly on the market. Its principle, connection method and control method are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] In the above embodiment, rotating the rocker arm causes the lead screw 3 to drive the gear 4 to rotate, thereby causing the rack 8 to move the protective cover 7 downward. At the same time, the use of the sliding groove can prevent friction between the protective cover 7 and the rocker arm. When the gear 4 disengages from the surface of the rack 8, the protective cover 7 can automatically fall down. The rubber pad protects against collisions between the protective cover 7 and the fixed seat 2, preventing wear and damage. Through the use of the rotating rod and the limiting plate, when the equipment is not in use, the protective cover 7 is moved upward, and the rotating rod is rotated. When the surface of one end of the limiting plate is in contact with the lower surface of the protective cover 7, the position of the protective cover 7 can be fixed.

[0026] Working principle: When using the equipment, first rotate the rotating rod to drive the limit plate to disengage from the lower surface of the protective cover 7, then place the workpiece on the upper end of the operating table 1. Then rotate the rocker arm to drive the lead screw 3 to rotate, thereby causing the two sets of adjusting plates 5 to move the clamping block 6 inward. At the same time, the gear 4 drives the rack 8 to move downward, thereby causing the protective cover 7 to move downward. When the adjusting plate 5 approaches the workpiece position, the gear 4 disengages from the surface of the rack 8, and the protective cover 7 can automatically fall down to protect the inside of the equipment. When the surface of the anti-slip block is in contact with the surface of the workpiece, the position of the workpiece can be fixed. Then, the laser generator body 9 is started to clad the workpiece. When the equipment is finished, the protective cover 7 can be lifted so that the surface of the rack 8 is in contact with the surface of the gear 4. Then, the rocker arm is rotated so that the lead screw 3 and the gear 4 drive the protective cover 7 to move upward. At the same time, the adjusting plate 5 can move outward synchronously. Then, the rotating rod is rotated so that the upper surface of the limiting plate is in contact with the lower surface of the protective cover 7, thereby supporting the protective cover 7. Finally, the cladding workpiece can be taken out. The above is the complete working principle of this utility model.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning structure for high-speed laser cladding of workpieces, comprising an operating table (1), characterized in that: The upper end of the operating table (1) is fixed with a fixed seat (2), and the internal bearing of the fixed seat (2) is connected to a lead screw (3). Both ends of the lead screw (3) are fixed with gears (4). The surface of the fixed seat (2) is slidably fitted with a protective cover (7), and both ends of the protective cover (7) are fixed with racks (8). The upper end of the inner wall of the fixed seat (2) is equipped with a laser generator body (9).

2. The positioning structure for high-speed laser cladding of workpieces according to claim 1, characterized in that: The surfaces at both ends of the lead screw (3) are threaded, and the two ends of the lead screw (3) are slidably fitted with adjusting plates (5).

3. The positioning structure for high-speed laser cladding of workpieces according to claim 2, characterized in that: The upper end of the adjustment plate (5) is slidably inserted into the interior of the fixed base (2), and the lower end of the adjustment plate (5) is fixed with a clamping block (6), and the clamping block (6) is fixed with anti-sliding blocks in a circular array.

4. The positioning structure for high-speed laser cladding of workpieces according to claim 1, characterized in that: A rocker arm is fixed to one end of a set of gears (4), and a groove is provided at one end of the fixed seat (2), with the surface of the groove in contact with the surface of the rocker arm.

5. A positioning structure for high-speed laser cladding of workpieces according to claim 1, characterized in that: The surface of the gear (4) meshes with the surface of the rack (8).

6. The positioning structure for high-speed laser cladding of workpieces according to claim 1, characterized in that: Both ends of the protective cover (7) are fitted with polycarbonate, and the polycarbonate is transparent.

7. The positioning structure for high-speed laser cladding of workpieces according to claim 1, characterized in that: The lower surface of the protective cover (7) and the upper part of the inner wall are both provided with rubber pads.

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