Mechanical part laser cutting machining equipment

Abstract

The invention discloses mechanical part laser cutting machining equipment, and relates to the technical field of mechanical part machining. The device comprises a rack, a mounting plate is fixedly connected to the front face of the rack, and a laser cutting machine is fixedly connected to the bottom of the mounting plate; a protection mechanism is arranged on the front face of the laser cutting machine. A gear set is linked with a rotating shaft to drive the protective cover to be opened and closed stably, a guide column is matched with a sliding frame to enable the protective cover to move outwards to avoid collision, an extension rod compresses a spring for buffering during closing, meanwhile, an inner side cleaning pad makes contact friction with the laser cutting head, smoke residues are automatically removed, the cutting head is kept clean, the cutting precision is improved, and the service life of equipment is prolonged. The direction of the fan is intelligently switched along with the state of the protective cover, the protective cover is semi-opened during cutting, the fan obliquely adsorbs smoke dust in a cutting area, interference is avoided, the fan is vertically upward during closing, the fan cooperates with the heat conduction plate and the cooling fins to form a forced convection air channel, heat dissipation is accelerated, and the problems of cutting smoke dust pollution and equipment overheating are solved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical parts processing technology, and in particular relates to a laser cutting processing equipment for mechanical parts. Background Technology

[0002] Laser cutting technology is widely used in the processing of mechanical parts. Its high precision characteristics place stringent requirements on the cleanliness of the equipment and temperature control. Metal fumes generated during processing can contaminate the lens and reduce the cutting quality; at the same time, the continuous high temperature of the laser head can easily cause aging of optical components, requiring frequent shutdowns for maintenance of traditional equipment, which affects production efficiency.

[0003] However, existing laser cutting equipment still has the following drawbacks in practical use: Insufficient protection: Dust generated during the cutting process easily adheres to the surface of the laser cutting head lens, affecting subsequent cutting accuracy; and after cutting, the cutting head is directly exposed to the outside world, making it susceptible to dust contamination and shortening the equipment's lifespan. Low heat dissipation efficiency: The laser cutting head generates a large amount of heat during prolonged operation; if heat cannot be dissipated in time, it may overheat and damage the cutting head, affecting equipment stability. Lack of self-cleaning function: Traditional equipment requires manual cleaning of residue and dust on the surface of the cutting head periodically, increasing labor costs and posing a risk of reduced cutting quality due to untimely cleaning.

[0004] To address these issues, we provide a laser cutting equipment for mechanical parts. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting processing equipment for mechanical parts. By combining a protective mechanism and a heat dissipation and smoke removal mechanism, it solves the problems of poor protection and the need for manual cleaning of cutting residue in existing laser cutting processing equipment for mechanical parts.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a laser cutting processing equipment for mechanical parts, comprising a frame, a mounting plate fixedly connected to the front of the frame, and a laser cutting machine fixedly connected to the bottom of the mounting plate; a protective mechanism is provided on the front of the laser cutting machine, the protective mechanism including a rotating shaft rotatably connected to the front of the laser cutting machine via a bearing seat, a support rod rotatably connected to one end of the rotating shaft, and a protective cover movably connected to the other end of the support rod; a heat dissipation and smoke removal mechanism is provided inside the protective cover, the heat dissipation and smoke removal mechanism including a through groove formed at the bottom of the protective cover, a fixed plate fixedly connected to the inner cavity of the through groove, a transmission shaft rotatably connected to one side of the fixed plate via a bearing seat, and a fan fixedly connected to both ends of the transmission shaft.

[0008] The invention is further configured such that a drive motor is fixedly connected to the surface of the laser cutting machine via a support plate, a first gear is fixedly connected to the output shaft of the drive motor, a second gear meshes with the surface of the first gear, and a third gear meshes with the surface of the second gear. The drive motor drives the first gear to rotate via the output shaft, the first gear drives the second gear to rotate, and the second gear drives the third gear to rotate, thus transmitting power to a rotating shaft fixedly connected to the gear shaft to achieve the opening and closing control of the protective cover.

[0009] The present invention is further configured such that there are two rotating shafts, and the shafts of the second gear and the third gear are respectively fixedly connected to the two rotating shafts.

[0010] The present invention is further configured such that a guide post is fixedly connected to the back of the first gear, a sliding frame is slidably connected to the surface of the guide post, a connecting plate is fixedly connected to one side of the sliding frame, and the guide post has an eccentric structure (offset from the center of the first gear). When the first gear rotates, the guide post moves in a circular motion with the gear, pushing the sliding frame to slide up and down along the guide post, so that the protective cover moves outward during the opening and closing process.

[0011] The invention is further configured such that a sliding groove is provided on the front of the laser cutting machine, a T-shaped plate is slidably connected to the inner cavity of the sliding groove, a fixed cylinder is fixedly connected to one side of the T-shaped plate, and the sliding groove provides a sliding track for the T-shaped plate, restricting it to move only in the horizontal direction.

[0012] The present invention is further configured such that a first spring is fixedly connected to the inner cavity of the fixed cylinder, a baffle is fixedly connected to the other end of the first spring, an extension rod is fixedly connected to one side of the baffle, and the extension rod is fixedly connected to one side of the protective cover. The extension rod pushes the baffle to compress the first spring, and the elastic deformation of the first spring absorbs the closing impact force, thereby avoiding damage caused by rigid collision between the protective cover and the laser cutting machine.

[0013] The invention is further configured such that a fourth gear is fixedly connected to the surface of the transmission shaft, a toothed plate meshes with the surface of the fourth gear, a movable plate is fixedly connected to one side of the toothed plate, a drive wheel is fixedly connected to one side of the movable plate, and drive plates are fixedly connected to both sides of the laser cutting machine. The movable plate drives the rotating shaft to rotate through the toothed plate and the fourth gear, and the rotating shaft drives the fan to rotate at a certain angle. When the protective cover is unfolded, the fan can be tilted through mechanical transmission, so that the negative pressure suction generated by the fan rotation can adsorb the fumes during the laser cutting process.

[0014] The invention is further configured such that a sliding hole is provided on one side of the movable plate, a sliding rod is slidably connected to the inner cavity of the sliding hole, a second spring is sleeved on the surface of the sliding rod, and the sliding hole and the sliding rod are fitted with a clearance to restrict the movable plate to slide only vertically.

[0015] The present invention is further configured such that heat-conducting plates are fixedly connected to both sides of the laser cutting machine, and heat dissipation fins are provided on the surface of the heat-conducting plates. The heat-conducting plates directly contact the heat source inside the laser cutting machine, and the heat is transferred to the heat dissipation fins on the surface through metal heat conduction. The heat dissipation fins increase the heat dissipation area and accelerate air convection.

[0016] The invention is further configured such that a control panel is provided on the front of the frame, and a cleaning pad is provided on the inner side of the protective cover. When the protective cover is closed, the cleaning pad is in close contact with the laser cutting head lens, and the dust and residue attached to the surface are removed by friction. The control panel integrates a drive motor and a fan control module.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention uses a gear set to drive the protective cover to open and close smoothly via a rotating shaft. The guide post and sliding frame work together to move the protective cover outward to avoid collisions. When closed, the extension rod compresses the spring for buffering, while the inner cleaning pad contacts and rubs against the laser cutting head to automatically remove smoke and dust residue, keeping the cutting head clean, improving cutting accuracy and equipment lifespan. The fan intelligently switches directions according to the protective cover's status. During cutting, the protective cover is half-open, and the fan tilts to absorb smoke and dust in the cutting area to avoid interference. When closed, the fan is vertically upward, working in conjunction with the heat-conducting plate and heat dissipation fins to form a forced convection airflow, accelerating heat dissipation and solving the problems of cutting smoke pollution and equipment overheating.

[0019] 2. This invention achieves automatic opening and closing of the protective cover through the linkage design of the protective mechanism (rotating shaft, support rod, gear set and elastic buffer assembly). When closing, it avoids cutting residue from contaminating the laser lens. The cleaning pad on the inside of the protective cover wipes the lens surface during the closing process to remove smoke and dust residue.

[0020] 3. This invention achieves the switching of the fourth gear and the fan angle by opening and closing the protective cover, the drive wheel contacting the fixed drive plate, pushing the moving plate, and the toothed plate. No additional sensors or motors are required throughout the process, thus reducing energy consumption and failure rate.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a 3D view of a laser cutting processing equipment for mechanical parts.

[0024] Figure 2 This is a diagram showing the assembly of a laser cutting machine and a protective cover in a laser cutting processing equipment for mechanical parts.

[0025] Figure 3 This is a cross-sectional view of a protective cover for a laser cutting processing equipment for mechanical parts.

[0026] Figure 4 This is a diagram showing the fit between the fourth gear and the toothed plate in a laser cutting processing equipment for mechanical parts.

[0027] Figure 5 This is a diagram showing the fit between a heat-conducting plate and heat dissipation fins in a laser cutting processing equipment for mechanical parts.

[0028] Figure 6 This is a diagram showing the fit between a guide post and a sliding frame in a laser cutting processing equipment for mechanical parts.

[0029] Figure 7 This is a cross-sectional view of a fixed cylinder in a laser cutting processing equipment for mechanical parts.

[0030] Figure 8 This is a diagram showing the fit of the first, second, and third gears in a laser cutting processing equipment for mechanical parts.

[0031] In the attached diagram: 1. Frame; 2. Mounting plate; 3. Laser cutter; 4. Rotating shaft; 5. Support rod; 6. Protective cover; 7. Through groove; 8. Fixing plate; 9. Drive shaft; 10. Fan; 11. Drive motor; 12. First gear; 13. Second gear; 14. Third gear; 15. Guide column; 16. Sliding frame; 17. Connecting plate; 18. Slide groove; 19. T-shaped plate; 20. Fixing cylinder; 21. First spring; 22. Baffle; 23. Extension rod; 24. Fourth gear; 25. Toothed plate; 26. Moving plate; 27. Drive wheel; 28. Drive plate; 29. ​​Slide rod; 30. Second spring; 31. Heat-conducting plate; 32. Heat dissipation fins; 33. Cleaning pad; 34. Control panel; 35. Sliding hole. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1:

[0033] Please see Figures 1-8This invention relates to a laser cutting processing equipment for mechanical parts, comprising a frame 1, a mounting plate 2 fixedly connected to the front of the frame 1, a laser cutter 3 fixedly connected to the bottom of the mounting plate 2, a protective mechanism on the front of the laser cutter 3, the protective mechanism including a rotating shaft 4 rotatably connected to the front of the laser cutter 3 via a bearing seat, a support rod 5 rotatably connected to one end of the rotating shaft 4, and a protective cover 6 movably connected to the other end of the support rod 5. A drive motor 11 is fixedly connected to the surface of the laser cutter 3 via the support plate, a first gear 12 is fixedly connected to the output shaft of the drive motor 11, a second gear 13 meshes with the surface of the first gear 12, and a third gear meshes with the surface of the second gear 13. 14. There are two rotating shafts 4. The shafts of the second gear 13 and the third gear 14 are fixedly connected to the two rotating shafts 4 respectively. The back of the first gear 12 is fixedly connected to the guide post 15. The surface of the guide post 15 is slidably connected to the sliding frame 16. The side of the sliding frame 16 is fixedly connected to the connecting plate 17. The front of the laser cutting machine 3 has a sliding groove 18. The inner cavity of the sliding groove 18 is slidably connected to the T-shaped plate 19. The side of the T-shaped plate 19 is fixedly connected to the fixing cylinder 20. The inner cavity of the fixing cylinder 20 is fixedly connected to the first spring 21. The other end of the first spring 21 is fixedly connected to the baffle 22. The side of the baffle 22 is fixedly connected to the extension rod 23. The extension rod 23 is fixedly connected to the side of the protective cover 6.

[0034] Further details: Two rotating shafts 4 are symmetrically distributed on the left and right sides of the front of the laser cutting machine 3. A support rod 5 is rotatably connected to one end of each rotating shaft 4, and a protective cover 6 is movably connected to the other end of each support rod 5. The protective cover 6 covers the lens area of ​​the laser cutting machine 3. The drive motor 11 drives the first gear 12 to rotate via its output shaft. The first gear 12 drives the second gear 13 to rotate, and the second gear 13 drives the third gear 14 to rotate, transmitting power to the rotating shafts 4 fixedly connected to the gear shafts, thus controlling the opening and closing of the protective cover 6. The shaft of the second gear 13 is fixedly connected to the surface of one of the rotating shafts 4, and the shaft of the third gear 14 is fixedly connected to the surface of the other rotating shaft 4. Through gear linkage, the two rotating shafts 4 are ensured to rotate synchronously in opposite directions, driving the support rods 5 to smoothly open and close the protective cover 6. The guide post 15 has an eccentric structure (offset from the center of the first gear 12). When the first gear 12 rotates... The guide post 15 moves in a circular motion with the gear, pushing the sliding frame 16 to slide up and down along the guide post 15, so that the protective cover 6 moves outward during the opening and closing process. The slide groove 18 provides a sliding track for the T-shaped plate 19, restricting it to move only in the horizontal direction, ensuring the precise cooperation of the subsequent elastic buffer structure. One end of the extension rod 23 is fixed to the top of the protective cover 6, and the other end extends into the fixed cylinder 20 and is connected to the baffle 22. When the protective cover 6 is closed, the extension rod 23 pushes the baffle 22 to compress the first spring 21. The elastic deformation of the first spring 21 absorbs the closing impact force, avoiding the rigid collision between the protective cover 6 and the laser cutting machine 3, which would cause damage. The protective mechanism can protect the laser cutting machine 3 after cutting, preventing the laser cutting machine 3 from being contaminated by dust. When closed, the cleaning pad 33 automatically removes the residue on the surface of the cutting head, preventing the laser cutting head from being contaminated by smoke and residue during operation, which would affect the cutting effect. Example 2:

[0035] Please see Figures 1-8 Based on embodiment 1, a heat dissipation and smoke removal mechanism is provided inside the protective cover 6. The heat dissipation and smoke removal mechanism includes a through groove 7 opened at the bottom of the protective cover 6, a fixed plate 8 fixedly connected to the inner cavity of the through groove 7, a transmission shaft 9 rotatably connected to one side of the fixed plate 8 through a bearing seat, a fan 10 fixedly connected to both ends of the transmission shaft 9, a fourth gear 24 fixedly connected to the surface of the transmission shaft 9, a toothed plate 25 meshing on the surface of the fourth gear 24, a movable plate 26 fixedly connected to one side of the toothed plate 25, a drive wheel 27 fixedly connected to one side of the movable plate 26, a drive plate 28 fixedly connected to both sides of the laser cutting machine 3, a sliding hole 35 opened on one side of the movable plate 26, a sliding rod 29 slidably connected to the inner cavity of the sliding hole 35, and a second spring 30 sleeved on the surface of the sliding rod 29.

[0036] Further supplement: When the drive shaft 9 moves with the opening and closing of the protective cover 6, since the drive plate 28 is in a fixed state, the drive plate 28 drives the moving plate 26 to move through the drive wheel 27. The moving plate 26 compresses the second spring 30, and the sliding hole 35 and the sliding rod 29 are in clearance fit, restricting the moving plate 26 to slide only vertically. The moving plate 26 drives the rotating shaft 4 to rotate through the toothed plate 25 and the fourth gear 24. The rotating shaft 4 drives the fan 10 to rotate at a certain angle. When the protective cover 6 is in the unfolded state, the fan 10 can be tilted through mechanical transmission, so that the negative pressure suction generated by the rotation of the fan 10 can adsorb the smoke during laser cutting and avoid the smoke from affecting the cutting effect. The fan 10 of the heat dissipation and smoke removal mechanism switches directions with the state of the protective cover 6. When cutting, the protective cover 6 is half open to form a smoke and dust barrier. At the same time, the fan 10 tilts to adsorb the smoke and dust in the cutting area. When the machine stops, the protective cover 6 is closed, and the fan 10 is vertically upward to force heat dissipation on the laser head. The opening and closing of the protective cover 6 and the angle switching of the fan 10 are mechanically linked, requiring no additional power. Example 3:

[0037] Please see Figures 1-8 Based on the embodiments, heat-conducting plates 31 are fixedly connected to both sides of the laser cutting machine 3, heat-conducting plates 31 are provided with heat dissipation fins 32 on their surface, control panel 34 is provided on the front of the frame 1, and cleaning pad 33 is provided on the inner side of the protective cover 6.

[0038] Further details: The heat-conducting plate 31 directly contacts the internal heat source of the laser cutting machine 3, transferring heat to the heat dissipation fins 32 on the surface through metal heat conduction. The heat dissipation fins 32 increase the heat dissipation area and accelerate air convection. When the protective cover 6 is closed, the fan 10 is vertically upward, forming a forced convection air duct with the fan 10 at the vertical heat dissipation position, accelerating heat dissipation and cooling the laser cutting machine 3 after cutting, thus improving the heat dissipation efficiency of the cutting machine. The cleaning pad 33 is fixed inside the protective cover 6. When the protective cover 6 is closed, the cleaning pad 33 is in close contact with the laser cutting head lens, removing dust and residue adhering to the surface through friction. The control panel 34 integrates the drive motor 11 and the fan 10 control module.

[0039] The working principle of this invention is as follows: After the device is started, the control panel 34 sends a signal to the drive motor 11, and its output shaft drives the first gear 12 to rotate. The first gear 12 drives the meshing second gear 13 to rotate. The second gear 13 drives the two rotating shafts 4 to rotate synchronously through the third gear 14. The rotating shafts 4 push the protective cover 6 to move outward through the support rod 5.

[0040] When the first gear 12 rotates, the guide post 15 moves in a circular motion with the gear, pushing the sliding frame 16 to slide up and down along the guide post 15, so that the protective cover 6 moves outward during the opening and closing process, avoiding rigid collision between the protective cover 6 and the laser cutting machine 3 and causing damage. At the same time, when the drive shaft 9 moves with the opening and closing of the protective cover 6, since the drive plate 28 is in a fixed state, the drive plate 28 drives the moving plate 26 to move through the drive wheel 27. The moving plate 26 compresses the second spring 30, and the sliding hole 35 and the sliding rod 29 are in clearance fit, restricting the moving plate 26 to slide only vertically. The moving plate 26 drives the rotating shaft 4 to rotate through the toothed plate 25 and the fourth gear 24. The rotating shaft 4 drives the fan 10 to rotate at a certain angle, so that when the protective cover 6 is in the unfolded state, the fan 10 faces the cutting area and absorbs the fumes generated by cutting.

[0041] After cutting, the control panel 34 triggers the drive motor 11 to rotate in the opposite direction, causing the protective cover 6 to close downwards. During the closing process, the extension rod 23 pushes the baffle 22 to compress the first spring 21 for buffering. The moving plate 26 is reset under the action of the second spring 30. The moving plate 26 drives the toothed plate 25 to move. At the same time, the fourth gear 24 on the transmission shaft 9 is driven to reset under the action of the toothed plate 25. The heat conduction plate 31 directly contacts the heat source inside the laser cutting machine 3 and transfers the heat to the heat dissipation fins 32 on the surface through metal heat conduction. The heat dissipation fins 32 increase the heat dissipation area and accelerate air convection. When the protective cover 6 is closed, the fan 10 is vertically upward and works with the fan 10 in the vertical heat dissipation position to form a forced convection air duct, which accelerates heat dissipation and can cool down the laser cutting machine 3 that has just finished cutting, improving the heat dissipation efficiency of the cutting machine. The cleaning pad 33 is fixed inside the protective cover 6. When the protective cover 6 is closed, the cleaning pad 33 is in close contact with the laser cutting head lens and removes the smoke and residue attached to the surface through friction.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A laser cutting processing equipment for mechanical parts, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to the front of the mounting plate (2), and the mounting plate (2) is fixedly connected to the bottom of the laser cutting machine (3). The laser cutting machine (3) is provided with a protective mechanism on the front side. The protective mechanism includes a rotating shaft (4) that is rotatably connected to the front side of the laser cutting machine (3) through a bearing seat, a support rod (5) that is rotatably connected to one end of the rotating shaft (4), and a protective cover (6) that is movably connected to the other end of the support rod (5). The protective cover (6) is provided with a heat dissipation and smoke removal mechanism. The heat dissipation and smoke removal mechanism includes a through groove (7) opened at the bottom of the protective cover (6), a fixed plate (8) fixedly connected to the cavity of the through groove (7), a transmission shaft (9) rotatably connected to one side of the fixed plate (8) through a bearing seat, and a fan (10) fixedly connected to both ends of the transmission shaft (9).

2. The laser cutting equipment for mechanical parts according to claim 1, characterized in that: The laser cutting machine (3) has a drive motor (11) fixedly connected to its surface via a support plate. The output shaft of the drive motor (11) is fixedly connected to a first gear (12). A second gear (13) meshes with the surface of the first gear (12), and a third gear (14) meshes with the surface of the second gear (13).

3. The laser cutting equipment for mechanical parts according to claim 2, characterized in that: There are two rotating shafts (4), and the second gear (13) and the third gear (14) are fixedly connected to the two rotating shafts (4) at their respective shaft centers.

4. The laser cutting equipment for mechanical parts according to claim 2, characterized in that: The back of the first gear (12) is fixedly connected to a guide post (15), and a sliding frame (16) is slidably connected to the surface of the guide post (15). A connecting plate (17) is fixedly connected to one side of the sliding frame (16).

5. The laser cutting equipment for mechanical parts according to claim 1, characterized in that: The laser cutting machine (3) has a groove (18) on the front side, and a T-shaped plate (19) is slidably connected to the inner cavity of the groove (18). A fixed cylinder (20) is fixedly connected to one side of the T-shaped plate (19).

6. The laser cutting equipment for mechanical parts according to claim 5, characterized in that: The inner cavity of the fixed cylinder (20) is fixedly connected to a first spring (21), and the other end of the first spring (21) is fixedly connected to a baffle (22). An extension rod (23) is fixedly connected to one side of the baffle (22), and the extension rod (23) is fixedly connected to one side of the protective cover (6).

7. The laser cutting equipment for mechanical parts according to claim 1, characterized in that: A fourth gear (24) is fixedly connected to the surface of the transmission shaft (9), a toothed plate (25) meshes with the surface of the fourth gear (24), a moving plate (26) is fixedly connected to one side of the toothed plate (25), a drive wheel (27) is fixedly connected to one side of the moving plate (26), and a drive plate (28) is fixedly connected to both sides of the laser cutting machine (3).

8. The laser cutting equipment for mechanical parts according to claim 7, characterized in that: The movable plate (26) has a sliding hole (35) on one side, and a sliding rod (29) is slidably connected to the inner cavity of the sliding hole (35). A second spring (30) is sleeved on the surface of the sliding rod (29).

9. The laser cutting equipment for mechanical parts according to claim 1, characterized in that: The laser cutting machine (3) has heat-conducting plates (31) fixedly connected to both sides, and heat dissipation fins (32) are provided on the surface of the heat-conducting plates (31).

10. The laser cutting equipment for mechanical parts according to claim 1, characterized in that: The frame (1) is provided with a control panel (34) on the front, and a cleaning pad (33) is provided on the inside of the protective cover (6).

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