A laser drilling device for stainless steel belt processing

Abstract

The application relates to the technical field of laser drilling and discloses a laser drilling device for stainless steel belt processing, which comprises a base plate and a placing seat slidably arranged on the top of the base plate, the top of the placing seat is detachably assembled with a blocking strip, the top surface of the blocking strip away from the placing seat is fixedly attached to a limiting plate, one end wall of the bottom of the limiting plate is fixedly inserted into the placing seat, and the bottom of the blocking strip is tightly attached to a stainless steel belt body, and a pay-off mechanism and a winding mechanism are correspondingly arranged on the left side and the right side of the stainless steel belt body. In the application, the detachable blocking strip structure is arranged at the processing station, the stainless steel belt base material around the drilling area is shielded by the blocking strip, high-temperature heat radiation and molten slag sputtering generated in the laser processing process are effectively isolated, and the surface blackening, oxidation burn and thermal deformation problems of the stainless steel belt drilling position are reduced from the root.

Description

Technical Field

[0001] This invention relates to the field of laser drilling technology, specifically to a laser drilling device for processing stainless steel strips. Background Technology

[0002] In the deep processing of stainless steel strips, drilling is a crucial step. The accuracy of the hole diameter, the consistency of the hole spacing, the flatness of the hole wall, and the processing efficiency directly determine the performance, appearance quality, and product qualification rate of the finished stainless steel strip. Currently, stainless steel strip drilling mainly employs traditional mechanical punching, mechanical drilling, chemical etching, and electrical discharge machining (EDM). These methods have many inherent defects in actual production. To overcome the shortcomings of traditional processes, laser drilling technology, with its advantages of non-contact processing, no tool wear, high processing precision, and high flexibility, is gradually replacing traditional processes and is widely used in stainless steel strip drilling.

[0003] However, existing laser drilling devices for stainless steel strips still have significant technical shortcomings in practical applications, hindering further improvements in processing quality and production efficiency. During laser drilling, the high-energy laser beam acting on the steel strip surface generates high temperatures, easily leading to problems such as thermal deformation, slag accumulation, and oxidation blackening in the drilling area. This not only damages the surface finish of the stainless steel strip but also causes rough hole walls and increased hole diameter errors, greatly affecting the quality of the finished product. Therefore, this invention proposes a laser drilling device for stainless steel strip processing. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a laser drilling device for processing stainless steel strips, which solves the problem of severe thermal damage to stainless steel strips during the laser drilling process.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a laser drilling device for processing stainless steel strip, comprising a base plate and a mounting base slidably disposed on the top of the base plate. A stop bar is detachably mounted on the top of the mounting base. A limiting plate is fixedly attached to the stop bar away from the top surface of the mounting base. One end wall of the limiting plate is fixedly inserted into the mounting base to achieve stable positioning of the stop bar. A stainless steel strip body is tightly pressed against the bottom of the stop bar. An unwinding mechanism and a winding mechanism are respectively provided on the left and right sides of the stainless steel strip body. The unwinding mechanism is used for unloading and conveying the stainless steel strip, and the winding mechanism is used for winding and storing the processed steel strip. The bottoms of both the unwinding and winding mechanisms are fixedly mounted on the base plate, resulting in a stable overall structure. A multi-directionally adjustable laser device is spaced above the stop bar, allowing adjustment of the drilling position according to processing requirements. A telescopic cylinder for driving the laser device to vertically feed and drill is fixedly connected to the top of the laser device.

[0006] Preferably, the stop bar is evenly provided with a plurality of openings along the width direction of the stainless steel strip body for the laser beam of the laser equipment to pass through and complete the drilling process, which can adapt to the processing requirements of different drilling spacings; the limiting plate is equipped with a limiting bolt that passes through the stop bar and extends into the interior of the mounting base, and the limiting plate is locked and fixed by the limiting bolt, which tightly presses and fixes the stop bar to the top of the mounting base, making it easy to disassemble and assemble, securely positioned, and easy to replace the stop bar with different opening specifications.

[0007] Preferably, a support rod is fixedly connected to the bottom of the mounting base, and a sliding member two is fixedly embedded at the bottom end of the support rod. A vertical sliding mechanism one is fixedly embedded in the base plate at the assembly position corresponding to the sliding member two. The sliding member two is slidably connected inside the vertical sliding mechanism one, so that the mounting base can be vertically moved and adjusted along the vertical sliding mechanism one.

[0008] Preferably, a sliding member three is fixedly connected to the top of the telescopic cylinder component, and a transverse slide rail mechanism is provided above the sliding member three. The sliding member three is slidably connected to the bottom of the transverse slide rail mechanism, so that the laser equipment can follow the sliding member three to slide and adjust laterally along the transverse slide rail mechanism to realize transverse multi-position drilling operation.

[0009] Preferably, a top frame plate is provided at intervals above the horizontal slide rail mechanism as a top support base. Sliding elements are fixedly connected to both sides of the top of the horizontal slide rail mechanism. A vertical sliding mechanism is fixedly embedded at the bottom of the top frame plate along its own length direction. The sliding elements are slidably connected to the bottom of the vertical sliding mechanism, so that the horizontal slide rail mechanism can be adjusted vertically as a whole, further expanding the processing and adjustment range of the laser equipment.

[0010] Preferably, the transverse slide rail mechanism is fixedly connected to the top of the side wall of the sliding member, and an auxiliary guide is provided on the top frame plate to accommodate the sliding through of the auxiliary guide. The auxiliary guide passes through the top frame plate and is slidably fitted to the top frame plate to limit and guide the vertical sliding of the transverse slide rail mechanism, ensuring that the sliding adjustment process is smooth and without deviation.

[0011] Preferably, the stainless steel strip body is provided with waste material sinking ramps at intervals on the lower side away from the baffle strip for receiving falling waste residue. The bottom of the waste material sinking ramps is fixedly connected to the base plate, which facilitates the automatic sliding and collection of perforated waste residue. The unwinding mechanism is provided with unwinding guide roller assembly one, unwinding tension roller and unwinding guide roller assembly two arranged in sequence at intervals on the side facing the waste material sinking ramps, so as to realize the smooth guiding and conveying of the steel strip and the tension adjustment. The bottom of unwinding guide roller assembly one and unwinding guide roller assembly two are both fixedly equipped with a support one, and the two are fixedly installed on the base plate through the support one. The bottom of the unwinding tension roller is fixedly connected to a vertically telescopic unwinding telescopic rod. The bottom of the unwinding telescopic rod is fixedly connected to the base plate, which can adaptively adjust the tension of the steel strip at the unwinding end.

[0012] Preferably, the winding mechanism is provided with winding guide rollers, winding tension rollers, and upper and lower guide rollers arranged in parallel on the side facing the waste material sinking slope. The multiple roller structure ensures smooth and stable winding and feeding. The bottom of both the lower guide roller and the winding guide roller is fixedly equipped with a support second, and the two are fixedly mounted on the base plate through the support second. The bottom of the winding tension roller is fixedly connected to a vertically extendable winding telescopic rod. The bottom of the winding telescopic rod is fixedly connected to the base plate and is used to adjust the conveying tension of the steel strip at the winding end to avoid loosening and wrinkling of the steel strip.

[0013] Preferably, side support plates are fixedly connected to the top left and right ends of the upper guide roller. A vertically arranged main support is fixedly connected to the side support plate away from the outer side of the upper guide roller. The top and bottom ends of the main support are respectively fixedly connected to the bottom of the top frame plate and the top of the base plate. The main support and the side support plates cooperate to form a stable top support frame, ensuring the long-term stable operation of the top sliding adjustment structure.

[0014] In summary, the technical effects and advantages of this invention are as follows: In this invention, by setting unwinding and rewinding structures at both ends of the equipment, continuous and stable feeding and rewinding of stainless steel strips can be achieved, ensuring the continuity and stability of the drilling process for strip substrates and adapting to the needs of large-scale mass production. Simultaneously, this invention features a detachable baffle structure at the processing station. This baffle protects the stainless steel strip substrate around the drilling area, effectively isolating it from high-temperature heat radiation and molten slag sputtering generated during laser processing. This fundamentally reduces surface blackening, oxidation burns, and thermal deformation at the drilling location, significantly improving the surface finish and yield of the finished product. Furthermore, the baffle can be flexibly configured with different sizes of drilling adaptable openings according to actual production needs, accommodating drilling conditions with different hole diameters and shapes. The structure is easy to disassemble and replace, significantly improving the equipment's adaptability and versatility.

[0015] Furthermore, the laser processing structure of this invention allows for multi-dimensional sliding adjustment in both horizontal and vertical directions. Combined with the sliding adaptation structure of the bottom mounting base, it can precisely match the displacement processing requirements of the laser equipment, enabling precise drilling operations in different areas of the stainless steel strip. The entire structure exhibits strong interconnectivity and flexible adjustment, allowing for multi-position drilling without frequent adjustments to the substrate position, effectively simplifying processing procedures and improving processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a laser drilling device for processing stainless steel strip according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a laser drilling device for processing stainless steel strip according to the present invention, shown on the left side. Figure 3 This is a schematic diagram of the overall structure of the substrate, unwinding mechanism, stainless steel strip body and winding mechanism of the present invention. Figure 4 This is a schematic diagram of the overall structure of the stainless steel strip body, the stop bar, the mounting base, the transverse slide rail mechanism, and the laser equipment of the present invention. Figure 5 This is a schematic diagram of the overall structure of the top frame plate, the transverse slide rail mechanism, and the laser equipment of the present invention. Figure 6 This is a schematic diagram of the overall structure of the baffle and mounting base of the present invention.

[0017] In the diagram: 1. Substrate; 101. Vertical sliding mechanism one; 102. Waste material sinking slope plate; 2. Unwinding mechanism; 201. Unwinding guide roller assembly one; 202. Unwinding tension roller; 203. Unwinding guide roller assembly two; 204. Unwinding telescopic rod; 3. Stainless steel strip body; 4. Rewinding mechanism; 401. Lower guide roller assembly; 402. Upper guide roller; 403. Rewinding tension roller; 404. Rewinding guide roller. Components; 405. Retractable telescopic rod; 5. Top frame plate; 501. Main support; 502. Side support plate; 503. Vertical sliding mechanism II; 504. Sliding component I; 6. Stop bar; 7. Mounting seat; 701. Support rod; 702. Limiting plate; 703. Limiting bolt; 704. Sliding component II; 8. Horizontal slide rail mechanism; 801. Sliding component III; 802. Auxiliary components; 9. Laser equipment; 901. Telescopic cylinder component. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] refer to Figures 1-6 The laser drilling device for processing stainless steel strip shown includes a substrate 1 and a mounting base 7 slidably disposed on the top of the substrate 1. Specific embodiments are shown below: Example 1 This embodiment includes the assembly position relationship and specific usage of the substrate 1, unwinding mechanism 2, stainless steel strip body 3, and winding mechanism 4, as detailed below: The substrate 1 serves as the supporting base for the entire drilling device. All functional components are fixedly or slidably assembled on the top surface of the substrate 1 to ensure the stability of the overall structure of the equipment. The unwinding mechanism 2 is fixedly assembled on the top left side of the substrate 1, and the winding mechanism 4 is fixedly assembled on the top right side of the substrate 1. The two are arranged symmetrically from left to right. The stainless steel strip body 3 is horizontally tensioned and laid between the unwinding mechanism 2 and the winding mechanism 4, forming a continuous feeding and receiving processing conveying path.

[0020] On the side of the unwinding mechanism 2 facing the processing station, unwinding guide roller 1 201, unwinding tension roller 202, and unwinding guide roller 203 are arranged sequentially at intervals. Unwinding guide roller 1 201 and unwinding guide roller 203 are fixed to the base plate 1 by bottom supports, maintaining a fixed position and only serving as guides for material feeding. Unwinding tension roller 202 is equipped with an unwinding telescopic rod 204 at its bottom, which enables vertical lifting and lowering adjustment. Correspondingly, on one side of the winding mechanism 4, winding guide roller 404, winding tension roller 403, upper guide roller 402, and lower guide roller 401 are arranged sequentially. Winding tension roller 403 is equipped with a winding telescopic rod 405 at its bottom, which enables vertical lifting and lowering.

[0021] During actual processing, operators can simultaneously control the extension and retraction of the unwinding telescopic rod 204 and the rewinding telescopic rod 405, driving the unwinding tension roller 202 and the rewinding tension roller 403 to rise and fall, thereby adaptively adjusting the tension of the stainless steel strip body 3. Through bidirectional tension adjustment, the stainless steel strip body 3 can always be tightly pressed against the bottom end face of the stop bar 6, effectively avoiding problems such as loosening, wrinkling, and deviation during steel strip conveying, ensuring the flatness and stability of the steel strip substrate during drilling, providing a stable processing foundation for precise laser drilling, effectively avoiding defects such as hole position deviation and uneven drilling caused by loose steel strip, and adapting to continuous laser drilling operations.

[0022] Example 2 This embodiment includes the assembly position relationship and specific usage of the stop bar 6 and the mounting base 7, and also defines the range of motion between the mounting base 7 and the laser device 9, as follows: The mounting base 7 is slidably mounted on the top of the substrate 1, located in the area between the unwinding guide roller 203 and the lower guide roller 401. This area is the only range of motion for the mounting base 7, and it is also the core processing area for the stop strip 6 and the laser equipment 9. A sliding member 704 is mounted on the bottom of the mounting base 7 via a support rod 701. The sliding member 704 is slidably engaged inside the vertical sliding mechanism 101 of the substrate 1, allowing the mounting base 7 to be vertically slidably adjusted along the vertical sliding mechanism 101 to accommodate laser drilling of the stainless steel strip body 3 in different areas.

[0023] The stop bar 6 is detachably mounted on the top of the mounting base 7. The limiting plate 702 is fixedly attached to the top of the stop bar 6. The limiting bolt 703 passes through the limiting plate 702 and the stop bar 6 and is inserted and fixed inside the mounting base 7 to achieve locking and positioning of the stop bar 6, ensuring the stability of the connection between the stop bar 6 and the mounting base 7. At the same time, stop bars 6 with different hole specifications can be quickly disassembled and replaced according to actual drilling needs. The stop bar 6 is pressed against the top of the stainless steel strip body 3, which can shield and protect the area around the steel strip to be drilled, blocking the high temperature heat radiation and molten slag sputtering generated by laser processing, and avoiding blackening and thermal deformation of the steel strip. The laser equipment 9 is spaced above the stop bar 6. Relying on the vertical sliding function of the mounting base 7, it can match the vertical processing stroke of the laser equipment 9, and complete the precise drilling operation within the limited range. The overall structure is compact and the processing range is precise and controllable.

[0024] Example 3 This embodiment includes the assembly position relationship and specific usage of the top frame plate 5, the transverse slide rail mechanism 8, and the laser device 9, as detailed below: The top frame plate 5 is fixedly mounted above the base plate 1 and the processing station via the main support 501, providing a fixed support foundation for the top sliding adjustment structure. The overall support structure is stable and can effectively bear the operating load of the sliding component and the laser processing component. A vertical sliding mechanism 2 503 is fixedly embedded at the bottom of the top frame plate 5. The horizontal slide rail mechanism 8 is slidably assembled at the bottom of the vertical sliding mechanism 2 503 via the top sliding member 1 504, so that the horizontal slide rail mechanism 8 can be vertically adjusted along the vertical sliding mechanism 2 503.

[0025] An auxiliary component 802 is fixedly mounted on the side wall of the transverse slide rail mechanism 8. The auxiliary component 802 slides through the opening of the top frame plate 5 and can limit and guide the vertical sliding of the transverse slide rail mechanism 8 to prevent deviation and shaking during the sliding process, thereby improving adjustment accuracy and stability. A telescopic cylinder component 901 is fixedly connected to the top of the laser device 9. A sliding component 801 is mounted on the top of the telescopic cylinder component 901. The sliding component 801 slides and engages with the bottom of the transverse slide rail mechanism 8, allowing the laser device 9 to complete lateral displacement sliding along the transverse slide rail mechanism 8.

[0026] In actual use, the vertical position adjustment of the laser equipment 9 is achieved through the vertical sliding mechanism 503, and the horizontal position adjustment of the laser equipment 9 is achieved through the horizontal sliding rail mechanism 8. With the precise telescopic drilling action of the telescopic cylinder 901, multi-position and multi-area stainless steel strip drilling can be realized. The structure has strong linkage and flexible adjustment, effectively improving the processing range and drilling accuracy of the equipment.

[0027] Working principle of this invention: First, relying on the base plate 1 as the overall supporting foundation, the unwinding mechanism 2 and the winding mechanism 4 work together to complete the continuous feeding and winding of the stainless steel strip body 3.

[0028] In the early stage of processing, the unwinding telescopic rod 204 and the rewinding telescopic rod 405 drive the unwinding tension roller 202 and the rewinding tension roller 403 to rise and fall vertically, thereby adjusting the steel strip conveying tension in real time. This ensures that the stainless steel strip body 3 is tightly pressed against the bottom of the stop bar 6 throughout the entire process, effectively eliminating problems such as steel strip slack, wrinkles and deviation, and ensuring that the substrate is flat and stable during processing, providing a reliable processing foundation for precise drilling.

[0029] The core processing station of the equipment is located between the unwinding guide roller 203 and the lower guide roller 401. This area is the main active processing area for the mounting base 7, the stop bar 6, and the laser equipment 9. The mounting base 7 slides with the vertical sliding mechanism 101 of the base plate 1 via the bottom sliding component 704, allowing the mounting base 7 to move the stop bar 6 within the laser zone. The stop bar 6 is detachably locked to the top of the mounting base 7 via the limiting plate 702 and the limiting bolt 703, and the stop bar 6 can be replaced with one of the corresponding opening size according to the drilling specifications. During laser drilling, the stop bar 6 can shield and protect the steel strip area around the drilling, effectively blocking the high-temperature laser radiation and molten slag sputtering, avoiding blackening, oxidation, and thermal deformation of the steel strip surface, and significantly improving the processing yield.

[0030] During drilling operations, the top frame plate 5 provides stable support for the adjustment mechanism. The horizontal slide rail mechanism 8 slides vertically along the vertical slide rail mechanism 503 at the bottom of the top frame plate 5 via the sliding element 504, and is guided by the auxiliary component 802 to ensure smooth vertical adjustment without deviation. The laser device 9 slides with the horizontal slide rail mechanism 8 via the top sliding element 801, enabling horizontal position adjustment. Simultaneously, the telescopic cylinder 901 drives the laser device 9 to feed vertically, completing precise drilling. Through multi-dimensional linkage adjustment in both horizontal and vertical directions, the laser device 9 can complete drilling operations at different positions on the steel strip within the processing area. Waste residue and debris generated during drilling can be collected uniformly by the waste material sinking slope plate 102, preventing waste residue from adhering to the surface of the steel strip and affecting product quality.

[0031] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser drilling device for processing stainless steel strip, comprising a substrate (1) and a mounting base (7) slidably disposed on the top of the substrate (1), characterized in that: The top of the mounting base (7) is detachably fitted with a baffle (6), the baffle (6) is fixedly attached to a limiting plate (702) away from the top of the mounting base (7), and one end wall of the limiting plate (702) is fixedly inserted into the mounting base (7); the bottom of the baffle (6) is fixedly attached to a stainless steel strip body (3), and the two end walls of the stainless steel strip body (3) are respectively fixedly fitted with an unwinding mechanism (2) and a winding mechanism (4), the bottoms of the unwinding mechanism (2) and the winding mechanism (4) are both fixedly mounted on the base plate (1); a slidable laser device (9) is provided at intervals above the baffle (6), and a telescopic cylinder (901) is fixedly connected to the top of the laser device (9).

2. The laser drilling device for processing stainless steel strip according to claim 1, characterized in that: The baffle (6) is evenly provided with openings along the width direction of the stainless steel strip body (3) for the laser beam of the laser device (9) to penetrate and process; the limiting plate (702) is provided with a limiting bolt (703) that penetrates the baffle (6) and extends into the mounting base (7), and the limiting plate (702) presses and fixes the baffle (6) to the top of the mounting base (7) by the limiting bolt (703).

3. The laser drilling device for processing stainless steel strip according to claim 1, characterized in that: The bottom of the mounting base (7) is fixedly connected to a support rod (701), and a sliding member (704) is fixedly embedded at the bottom of the support rod (701). The base plate (1) is fixedly embedded with a vertical sliding mechanism (101) at the position corresponding to the sliding member (704), and the sliding member (704) is slidably connected in the vertical sliding mechanism (101).

4. The laser drilling device for processing stainless steel strip according to claim 1, characterized in that: The top of the telescopic cylinder component (901) is fixedly connected to a sliding component three (801), and the top of the sliding component three (801) is provided with a transverse slide rail mechanism (8), and the sliding component three (801) is slidably connected to the bottom of the transverse slide rail mechanism (8).

5. The laser drilling device for processing stainless steel strip according to claim 4, characterized in that: The top of the transverse slide rail mechanism (8) is provided with a top frame plate (5) spaced apart. Both sides of the top of the transverse slide rail mechanism (8) are fixedly connected with a sliding member (504). The bottom of the top frame plate (5) is fixedly embedded with a vertical sliding mechanism (503) along its length direction. The sliding member (504) is slidably connected to the bottom of the vertical sliding mechanism (503).

6. The laser drilling device for processing stainless steel strip according to claim 5, characterized in that: The transverse slide rail mechanism (8) is fixedly connected to the top of the side wall of the sliding member (504) with an auxiliary member (802). The auxiliary member (802) passes through the top frame plate (5) and slides against the top frame plate (5). The top frame plate (5) has an opening adapted to the sliding of the auxiliary member (802).

7. The laser drilling device for processing stainless steel strip according to claim 1, characterized in that: The stainless steel strip body (3) is provided with a waste material sinking slope plate (102) at intervals on the side away from the stop bar (6). The bottom of the waste material sinking slope plate (102) is fixedly connected to the base plate (1). The unwinding mechanism (2) is provided with an unwinding guide roller (201), an unwinding tension roller (202) and an unwinding guide roller (203) at intervals on the side facing the waste material sinking slope plate (102). The bottom of the unwinding guide roller (201) and the unwinding guide roller (203) are both fixedly connected to a support. The unwinding guide roller (201) and the unwinding guide roller (203) are fixedly connected to the base plate (1) through the support. The bottom of the unwinding tension roller (202) is fixedly connected to an unwinding telescopic rod (204). The bottom of the unwinding telescopic rod (204) is fixedly connected to the base plate (1).

8. The laser drilling device for processing stainless steel strip according to claim 7, characterized in that: The winding mechanism (4) is provided with winding guide rollers (404), winding tension rollers (403), and upper guide rollers (402) and lower guide rollers (401) arranged in parallel on one side facing the waste material sinking slope plate (102). The bottom of the lower guide rollers (401) and the winding guide rollers (404) are fixedly connected to the support. The lower guide rollers (401) and the winding guide rollers (404) are fixedly connected to the base plate (1) through the support. The bottom of the winding tension rollers (403) is fixedly connected to the winding telescopic rod (405). The bottom of the winding telescopic rod (405) is fixedly connected to the base plate (1).

9. The laser drilling device for processing stainless steel strip according to claim 8, characterized in that: Both ends of the top of the upper guide roller (402) are fixedly connected to side bracket plates (502). The side bracket plate (502) is fixedly connected to a main bracket (501) on the side away from the upper guide roller (402). The top and bottom of the main bracket (501) are respectively fixedly connected to the bottom of the top frame plate (5) and the top of the base plate (1).

Images