A cutting device for manufacturing electromechanical equipment

Abstract

This invention provides a cutting device for the manufacture of electromechanical equipment, relating to the field of electromechanical equipment cutting technology. It includes a fixed disk and a movable disk that is sealed and slidably connected to the fixed disk. A bottom ring is installed at the lower end of the movable disk, and a concave spring is installed at the other end of the bottom ring. The concave spring is sealed and slidably connected to the fixed disk. A convex spring is sealed and slidably connected to the upper end of the fixed disk. An arc-shaped segment is installed between the convex spring and the concave spring. A pressurization zone is formed between the upper end of the convex spring and the fixed disk. The innovation of this device lies in the use of a negative pressure generation system driven by a high-pressure gas source, which changes the traditional technical path of laser cutting equipment relying on negative pressure equipment. When high-pressure gas enters the fixed disk through the inlet pipe, the contraction section formed between the convex spring and the fixed disk generates a throat effect, causing the high-speed airflow to rapidly increase in velocity and significantly decrease in pressure within the pressurization zone.

Description

Technical Field

[0001] This invention relates to the field of electromechanical equipment cutting technology, and more specifically, to a cutting device for the preparation of electromechanical equipment. Background Technology

[0002] In existing electromechanical equipment manufacturing processes, laser cutting technology is widely used due to its high precision and efficiency. However, this technology generates a large amount of metal fumes and molten particles during the cutting process. These suspended particles not only pollute the working environment but also seriously interfere with the transmission path of the laser beam, causing beam scattering and energy attenuation, directly affecting the cutting quality and equipment stability. Traditional solutions mainly rely on negative pressure adsorption systems, which use vacuum pumps to generate stable negative pressure to quickly remove fumes from the cutting area. However, this system has obvious limitations: on the one hand, high-power vacuum pumps and their matching filter devices are expensive, significantly increasing equipment costs; on the other hand, negative pressure systems require complex sealing structures and piping layouts, making them difficult to install in small and medium-sized processing workshops, which seriously restricts the promotion and application of laser cutting technology.

[0003] In contrast, high-pressure air sources have significant advantages in industrial environments. Compressed air systems are standard infrastructure in factories, with their air supply networks covering most production workshops and low maintenance costs. Theoretically, with a well-designed airflow guiding device, high-pressure airflow can effectively disperse dust clouds in the cutting area and cool the workpiece. However, in practical applications, it is difficult to form a stable dust control field by relying solely on positive pressure airflow. Airflow disturbance may even lead to dust diffusion. This technical contradiction forces many processing sites to adopt cost-compromise solutions, which cannot fully leverage the technical advantages of laser cutting and cannot meet ideal environmental standards, becoming one of the key technical bottlenecks restricting the development of the industry. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a cutting device for the preparation of electromechanical equipment to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for manufacturing electromechanical equipment, comprising a fixedly mounted receiving frame and a movable frame connected to the receiving frame; further comprising a negative pressure mechanism, the negative pressure mechanism comprising a fixed plate and a movable plate slidably connected to the fixed plate, the lower end of the movable plate being fitted with a bottom ring, the other end of the bottom ring being fitted with a concave spring sheet, the concave spring sheet being slidably connected to the fixed plate, the upper end of the fixed plate being slidably connected with a convex spring sheet, an arc-shaped segment being installed between the convex spring sheet and the concave spring sheet, a pressure-increasing zone being formed between the upper end of the convex spring sheet and the fixed plate, and a negative pressure zone being formed between the lower end of the concave spring sheet and the movable plate; further comprising an adjustment mechanism, the adjustment mechanism comprising a fixed tube fixedly mounted on the fixed plate, a telescopic rod being mounted on the movable plate, the telescopic rod being slidably connected inside the fixed tube.

[0008] Preferably, the negative pressure mechanism further includes multiple support rods installed on the outer wall of the convex elastic piece, and the multiple support rods are arranged at equal intervals. A compensation tube is installed through the side wall of the fixed plate. The support rods provide uniform structural support for the convex elastic piece, preventing the convex elastic piece from being excessively deformed or irregularly bent under the impact of high-pressure airflow, and ensuring that a stable throat structure is formed between the convex elastic piece and the fixed plate.

[0009] Preferably, the compensation tube is connected to a first negative pressure tube and a second negative pressure tube respectively. The first negative pressure tube passes through and is fixedly installed on the arc-shaped segment, and the second negative pressure tube passes through and is fixedly installed on the concave spring. The first negative pressure tube and the second negative pressure tube are respectively connected to the negative pressure area. The first negative pressure tube and the second negative pressure tube form a dual-channel system for negative pressure transmission, drawing negative pressure from two key positions: the arc-shaped segment and the concave spring.

[0010] Preferably, suction sleeves are connected and installed on the side of the multiple compensation tubes near the axis of the fixed disk, and the multiple suction sleeves are respectively fixedly installed on the inner wall of the fixed disk. The suction sleeves serve as the direct interface for dust collection and form a complete negative pressure transmission channel through the connection and installation with the compensation tubes. The reasonable distribution of the multiple suction sleeves ensures the all-round capture of dust in the cutting area.

[0011] Preferably, the upper end of the fixed plate is connected to two air inlet pipes, and the air inlet pipes are connected to an external high-pressure air source. The mobile frame is equipped with a fixed base, and the two air inlet pipes are connected and installed on the fixed base. The fixed base is equipped with a laser head. The dual air inlet pipe design provides redundant input channels for the high-pressure air source, ensuring the stability and sufficiency of the air supply.

[0012] Preferably, the outer wall of the bottom ring is provided with multiple oblique spray holes at equal intervals, and the multiple oblique spray holes are respectively connected to the negative pressure zone. The oblique spray holes serve as dedicated channels for smoke and dust discharge. Their oblique design causes the discharged airflow to diffuse in a divergent manner, pushing the smoke and dust away from the cutting area from the laser head as the center. The equal interval arrangement ensures the uniformity and coverage integrity of the exhaust flow field.

[0013] Preferably, the adjustment mechanism further includes multiple pre-tightening sleeves slidably connected to the outer wall of the fixed tube, and multiple limiting grooves are equally spaced on the outer wall of the telescopic rod. The pre-tightening sleeves abut against the limiting grooves, and the limiting grooves are provided with embedded grooves. The sliding connection between the pre-tightening sleeves and the fixed tube provides the basic degree of freedom of movement for adjustment, and the limiting grooves provide a precise positioning reference point for the pre-tightening sleeves.

[0014] Preferably, each of the plurality of pre-tightening sleeves is slidably connected with a transverse rod, and a semi-circular block is installed on every two transverse rods. A spring is installed on the pre-tightening sleeve, and the spring abuts against the semi-circular block. The transverse rods achieve radial adjustment through sliding connection within the pre-tightening sleeves. The design of the semi-circular block increases the contact area with the variable pitch sleeve, thereby improving the stability and reliability of locking.

[0015] Preferably, a control sleeve is slidably connected to the fixed tube, a variable pitch sleeve is installed inside the control sleeve, and multiple semicircular blocks abut against the variable pitch sleeve respectively. A top spring is installed on the fixed tube and abuts against the control sleeve. The control sleeve serves as the operating interface of the entire adjustment mechanism, and the locking system is controlled by sliding on the fixed tube.

[0016] Preferably, multiple directional strips are installed at equal intervals on the outer wall of the fixed disk, and the movable disk is slidably connected to the directional strips. The directional strips serve as a precise guiding structure to ensure that the movable disk and the fixed disk can only move axially relative to each other without radial offset or rotation.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a cutting device for the preparation of electromechanical equipment, which has the following beneficial effects:

[0019] The innovation of this equipment lies in its use of a high-pressure gas-driven negative pressure generation system, which changes the traditional technical path of laser cutting equipment that relies on negative pressure devices. When high-pressure gas enters the fixed plate through the inlet pipe, the contraction section formed between the convex spring and the fixed plate creates a throat effect, causing the high-speed airflow to increase rapidly in the pressurization zone while the pressure decreases significantly. According to Bernoulli's theorem in fluid mechanics, when the airflow reaches the narrowest section through the arc segment, the flow velocity reaches its peak while the pressure drops to its lowest point, forming a strong negative pressure suction force in the negative pressure zone below the concave spring. This negative pressure is effectively transmitted to multiple suction sleeves through the first and second negative pressure pipes. The smoke and dust generated during laser cutting are quickly sucked into the negative pressure zone, avoiding the scattering and absorption of the laser beam by the smoke and dust particles. The sucked-in dust-laden gas is sprayed out in a diffused manner through the oblique nozzles on the bottom ring along with the high-pressure airflow, achieving efficient removal of smoke and dust. This design not only ensures the accuracy and quality of laser cutting but also significantly improves the working environment and enhances operational safety.

[0020] The equipment is equipped with a pressure compensation mechanism, which effectively solves the problem of elastic element deformation caused by high-pressure airflow. When the convex and concave elastic pieces deform under the action of high-pressure airflow, excessive deformation will increase the throat cross-section, resulting in a decrease in negative pressure effect. By pushing the moving disk upward to move the concave elastic piece upward, the deformation can be precisely offset, ensuring that the throat size is always kept in the optimal state. The compensation tube plays a key role in deformation compensation in this process, adjusting the geometric parameters inside the system in real time to ensure the continuous stability of negative pressure generation. The equidistant arrangement of the support rods provides uniform support force for the convex elastic pieces, preventing excessive local deformation, while the directional bar ensures the linear motion accuracy of the moving disk during the adjustment process. This multi-protection mechanism enables the equipment to maintain a stable negative pressure effect during long-term high-intensity operation, improving the reliability and service life of the equipment.

[0021] This equipment innovatively adopts a graded adjustment mechanism. Through the sliding of the telescopic rod within the fixed tube and the positioning of multiple pre-tightening sleeves, precise control of the relative position between the moving disc and the fixed disc is achieved. The design of the limiting groove and the embedded groove provides an accurate positioning benchmark for adjustment. Operators can quickly adjust the volume and suction intensity of the negative pressure zone according to the thickness of different cutting materials and the amount of smoke and dust generated. Pushing the control sleeve downwards releases the constraint of the variable pitch sleeve on the semi-circular block, and the horizontal rod automatically disengages from the embedded groove. Under the action of the spring pre-tightening force, the position of the telescopic rod can be freely adjusted. After adjustment, the top spring automatically pushes the control sleeve to reset, the semi-circular block is relocked on the variable pitch sleeve, and the horizontal rod is firmly inserted into the corresponding embedded groove. The entire process requires no special tools, improving operational efficiency.

[0022] Overall, this cutting equipment for manufacturing electromechanical equipment, through innovative application of fluid dynamics principles and mechanical structure design, not only solves the problem of smoke and dust interference in laser cutting, but also has the advantages of low cost, simple operation, and precise adjustment, providing technical support for the promotion and application of laser cutting technology. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a cutting device for manufacturing electromechanical equipment according to the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the movable disk and the fixed disk in this invention;

[0025] Figure 3 This is a cross-sectional view of the fixed disk and the movable disk in this invention;

[0026] Figure 4 In this invention Figure 3 A magnified view of part A in the image;

[0027] Figure 5 This is a cross-sectional view of the bottom ring and the movable disk in this invention.

[0028] Figure 6 This is a cross-sectional view of the fixed disk in this invention;

[0029] Figure 7 This is a cross-sectional view of the fixed tube and telescopic rod in this invention;

[0030] Figure 8 This is a cross-sectional view of the pre-tightening sleeve in this invention.

[0031] In the diagram: 11. Receiving frame; 12. Moving frame; 21. Fixed plate; 22. Moving plate; 23. Bottom ring; 24. Concave spring; 25. Convex spring; 26. Arc-shaped segment; 27. Pressurization zone; 28. Negative pressure zone; 29. ​​Support rod; 31. Fixed pipe; 32. Telescopic rod; 33. Pre-tightening sleeve; 34. Limiting groove; 35. Embedded groove; 36. Horizontal rod; 37. Semicircular block; 38. Spring; 39. Control sleeve; 210. Compensation pipe; 211. First negative pressure pipe; 212. Second negative pressure pipe; 213. Suction sleeve; 214. Air inlet pipe; 215. Fixed base; 216. Laser head; 217. Angled spray hole; 310. Variable pitch sleeve; 311. Top spring; 312. Directional strip. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0035] Please see Figures 1 to 8 A cutting device for manufacturing electromechanical equipment includes a fixed receiving frame 11 and a movable frame 12 connected to the receiving frame 11; it also includes a negative pressure mechanism, which includes a fixed plate 21 and a movable plate 22 that is slidably connected to the fixed plate 21. A bottom ring 23 is installed at the lower end of the movable plate 22, and a concave spring 24 is installed at the other end of the bottom ring 23. The concave spring 24 is slidably connected to the fixed plate 21. A convex spring 25 is slidably connected to the upper end of the fixed plate 21. An arc-shaped segment 26 is installed between the convex spring 25 and the concave spring 24. A pressure-increasing zone 27 is formed between the upper end of the convex spring 25 and the fixed plate 21, and a negative pressure zone 28 is formed between the lower end of the concave spring 24 and the movable plate 22. The negative pressure mechanism also includes a plurality of support rods 29 installed on the outer wall of the convex spring 25, and the plurality of support rods 29 are equally spaced. A compensation pipe 210 is installed through the side wall of the fixed plate 21. The first negative pressure pipe 211 and the second negative pressure pipe 212 are respectively connected to the 210. The first negative pressure pipe 211 is installed through and fixedly mounted on the arc-shaped section 26, and the second negative pressure pipe 212 is installed through and fixedly mounted on the concave spring sheet 24. The first negative pressure pipe 211 and the second negative pressure pipe 212 are respectively connected to the negative pressure zone 28. A suction sleeve 213 is connected to one side of the multiple compensation pipes 210 near the axis of the fixed plate 21, and the multiple suction sleeves 213 are respectively fixedly mounted on the inner wall of the fixed plate 21. Two air inlet pipes 214 are connected to the upper end of the fixed plate 21, and the air inlet pipes 214 are connected to the external high-pressure air source. A fixed seat 215 is installed on the moving frame 12, and the two air inlet pipes 214 are connected to the fixed seat 215. A laser head 216 is installed on the fixed seat 215. Multiple oblique spray holes 217 are equally spaced on the outer wall of the bottom ring 23, and the multiple oblique spray holes 217 are respectively connected to the negative pressure zone 28.

[0036] When cutting electromechanical equipment, the laser head 216 is driven by the moving frame 12 to cut the steel plate. During the cutting process, smoke and dust are generated. High-pressure gas is introduced through the air inlet pipe 214, and the gas first enters the fixed plate 21. Because one end of the convex spring 25 is sealed and slidably connected within the fixed plate 21, the cross-sectional area between the arc-shaped section 26 and the fixed plate 21 decreases, creating a throat. After the high-speed gas passes through the pressurization zone 27 at the upper end of the convex spring 25, the flow velocity increases and the pressure decreases. Upon reaching the area closest to the arc-shaped section 26 and the fixed plate 21, the flow velocity reaches its maximum. Then, the high-speed gas flows through the arc-shaped section 26, creating a depression at the position of the concave spring 24. At this point, the flow velocity is in the region of maximum velocity, according to the energy conservation principle... Since constant P + 0.5ρv² + ρgh = constant, and pressure is low due to high flow velocity, negative pressure is generated in negative pressure zone 28. This negative pressure is connected to multiple suction sleeves 213 through the first negative pressure pipe 211 and the second negative pressure pipe 212. Therefore, the generated smoke is sucked in by multiple suction sleeves 213, thus avoiding the smoke from affecting the laser. After the smoke is sucked into negative pressure zone 28, it is ejected through the oblique nozzles 217 on the bottom ring 23 along with the high-pressure gas. Since the multiple oblique nozzles 217 are set at an angle, high-speed gas diffuses outward from the laser head 216 as the center, thus blowing out the dust-laden gas, thereby completing the dust adsorption process. Through adsorption, the dust will be continuously prevented from affecting the laser, thereby improving the cutting effect.

[0037] Because the high-pressure gas blown onto the convex spring 25 and concave spring 24 will cause deformation, if the deformation is too large, the throat of the arc segment 26 will be too large, thus reducing the negative pressure effect. By pushing the moving disk 22 upward, the concave spring 24 will be pushed upward, which will offset this deformation, thereby ensuring that the negative pressure requirement is met. Furthermore, as it moves, the compensation tube 210 will compensate for the deformation, thus completing the adjustment process.

[0038] The adjustment mechanism includes a fixed tube 31 fixedly mounted on a fixed plate 21, a telescopic rod 32 mounted on a movable plate 22, and the telescopic rod 32 slidably connected inside the fixed tube 31. The adjustment mechanism also includes multiple pre-tightening sleeves 33 slidably connected to the outer wall of the fixed tube 31. Multiple limiting grooves 34 are evenly spaced on the outer wall of the telescopic rod 32, and the pre-tightening sleeves 33 abut against the limiting grooves 34. An embedded groove 35 is formed within the limiting groove 34. Transverse rods 36 are slidably connected to each of the multiple pre-tightening sleeves 33, and every two transverse rods 36... A semicircular block 37 is installed on the 6, a spring 38 is installed on the pre-tightening sleeve 33, and the spring 38 abuts against the semicircular block 37. A control sleeve 39 is slidably connected to the fixed tube 31, a variable pitch sleeve 310 is installed inside the control sleeve 39, and multiple semicircular blocks 37 abut against the variable pitch sleeve 310 respectively. A top spring 311 is installed on the fixed tube 31, and the top spring 311 abuts against the control sleeve 39. Multiple directional strips 312 are installed at equal intervals on the outer wall of the fixed disk 21, and the moving disk 22 is slidably connected to the directional strips 312 for limiting.

[0039] When adjustment is needed, the relative positions of the moving plate 22 and the fixed plate 21 can be changed by changing the position of the horizontal rod 36 against different inner grooves 35. When the control sleeve 39 is pushed down, the variable pitch sleeve 310 disengages from the contact between itself and the multiple semicircular blocks 37. Then, the horizontal rod 36 disengages from the engagement between itself and the inner groove 35. Under the action of the spring 38, the pre-tightening sleeve 33 is always pressed against the limiting groove 34. The spring 38 provides the pre-tightening effect of the telescopic rod 32. Then, the relative positions of the telescopic rod 32 and the fixed tube 31 can be adjusted, thereby completing the adjustment of the relative positions of the moving plate 22 and the fixed plate 21. After the adjustment is completed, under the action of the top spring 311, the semicircular blocks 37 are pressed against the variable pitch sleeve 310, thus ensuring that the horizontal rod 36 is in contact with the inner groove 35, completing the fixing process. Since the distance between the multiple inner grooves 35 is known, each adjustment of the distance between several inner grooves 35 moves the corresponding position, thereby completing the adjustment process.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for manufacturing electromechanical equipment, comprising a fixedly mounted receiving frame (11) and a movable frame (12) connected to the receiving frame (11); characterized in that: It also includes a negative pressure mechanism, which includes a fixed disk (21) and a movable disk (22) that is sealed and slidably connected to the fixed disk (21). A bottom ring (23) is installed at the lower end of the movable disk (22), and a concave spring (24) is installed at the other end of the bottom ring (23). The concave spring (24) is sealed and slidably connected to the fixed disk (21). A convex spring (25) is sealed and slidably connected to the upper end of the fixed disk (21). An arc-shaped segment (26) is installed between the convex spring (25) and the concave spring (24). The upper end of the convex spring (25) and the fixed disk (21) are connected together. A pressure zone (27) is formed between the concave spring (24) and the moving disk (22), and a negative pressure zone (28) is formed between the lower end of the concave spring (24) and the moving disk (22); it also includes an adjustment mechanism, which includes a fixed tube (31) fixedly installed on the fixed disk (21), and a telescopic rod (32) is installed on the moving disk (22). The telescopic rod (32) is slidably connected inside the fixed tube (31). The negative pressure mechanism also includes multiple support rods (29) installed on the outer wall of the convex spring (25), and the multiple support rods (29) are equally spaced, and the side wall of the fixed disk (21) is penetrated by a support rod (29). A compensation tube (210) is provided, and a first negative pressure tube (211) and a second negative pressure tube (212) are respectively connected to the compensation tube (210). The first negative pressure tube (211) passes through and is fixedly installed on the arc-shaped section (26), and the second negative pressure tube (212) passes through and is fixedly installed on the concave spring sheet (24). The first negative pressure tube (211) and the second negative pressure tube (212) are respectively connected to the negative pressure area (28). A suction sleeve (213) is connected to one side of the multiple compensation tubes (210) near the axis of the fixed plate (21), and the multiple suction sleeves (213) are connected to the other side. Two air inlet pipes (214) are fixedly installed on the inner wall of the fixed plate (21), and the upper end of the fixed plate (21) is connected to the external high-pressure air source. A fixed seat (215) is installed on the movable frame (12), and the two air inlet pipes (214) are connected to the fixed seat (215). A laser head (216) is installed on the fixed seat (215). Multiple oblique spray holes (217) are equally spaced on the outer wall of the bottom ring (23), and the multiple oblique spray holes (217) are respectively connected to the negative pressure zone (28).

2. The cutting equipment for manufacturing electromechanical equipment according to claim 1, characterized in that: The adjustment mechanism also includes multiple pre-tightening sleeves (33) that are slidably connected to the outer wall of the fixed tube (31), and multiple limiting grooves (34) are equally spaced on the outer wall of the telescopic rod (32). The pre-tightening sleeves (33) abut against the limiting grooves (34), and the limiting grooves (34) have embedded grooves (35).

3. The cutting equipment for manufacturing electromechanical equipment according to claim 2, characterized in that: Each of the pre-tightening sleeves (33) is slidably connected with a transverse rod (36), and a semi-circular block (37) is installed on every two transverse rods (36). A spring (38) is installed on the pre-tightening sleeve (33), and the spring (38) abuts against the semi-circular block (37).

4. The cutting equipment for manufacturing electromechanical equipment according to claim 3, characterized in that: A control sleeve (39) is slidably connected to the fixed tube (31), a variable pitch sleeve (310) is installed inside the control sleeve (39), and multiple semicircular blocks (37) respectively abut against the variable pitch sleeve (310). A top spring (311) is installed on the fixed tube (31), and the top spring (311) abuts against the control sleeve (39).

5. The cutting equipment for manufacturing electromechanical equipment according to claim 4, characterized in that: Multiple directional strips (312) are installed at equal intervals on the outer wall of the fixed disk (21), and the movable disk (22) is slidably connected to the directional strips (312).

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