Laser machining precision metal plate device

Abstract

The invention discloses a laser processing precision sheet metal device which comprises a workbench, a sliding rail and a support fixedly connected to the upper surface of the workbench, and a sliding table slidably arranged in the sliding rail, the upper end of the support is fixedly connected with a guide rail, the inner surface of the guide rail is slidably connected with a connecting base, and the lower surface of the connecting base is fixedly connected with a laser. A pre-tightening assembly is arranged in the connecting base and used for increasing the pre-tightening force between the connecting base and the guide rail and preventing the connecting base from deviating in the movement process. A speed reduction assembly is arranged on the side surface of the guide rail and used for reducing the displacement speed of the laser during cutting, deviation is prevented through the components and the pre-tightening assembly, the positioning precision is improved, the speed reduction assembly achieves automatic speed reduction in the cutting range through a positioning ruler and a second two-way lead screw, and cutting precision and stability are guaranteed through cooperation of the two parts.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser processing, in particular to a laser processing precision sheet metal device. BACKGROUND

[0002] The laser processing precision sheet metal device is a device for high-precision cutting and forming processing of metal sheet metal parts, and is widely used in the fields of precision manufacturing such as electronics, machinery and automobiles, and the core requirement is to realize accurate cutting and contour processing of sheet metal parts through a laser beam.

[0003] In actual production, as the precision requirement of sheet metal processing is continuously improved, the traditional laser processing device gradually exposes obvious defects: the cooperation of the sliding block connected with the laser cutter and the guide rail is prone to looseness and deviation during high-speed movement and cutting vibration due to insufficient or unadjustable pre-tightening force, which causes laser positioning deviation and affects cutting position precision; meanwhile, most of the existing deceleration mechanisms are in full-speed or fixed deceleration mode, which cannot accurately adapt to the cutting range according to the width of the plate, and the deceleration of the non-cutting section will reduce the processing efficiency, and when the cutting area lacks targeted deceleration, the laser is prone to inertia or speed fluctuation, and it is difficult to balance the processing precision and stability. SUMMARY

[0004] The application aims to at least solve one of the technical problems in the prior art, and provides a laser processing precision sheet metal device, which solves the problems of deviation and positioning deviation caused by improper pre-tightening of the existing device and poor adaptability of the deceleration mechanism.

[0005] The application also provides a laser processing precision sheet metal device, which comprises a workbench, a sliding rail and a support fixedly connected to the upper surface of the workbench, and a sliding table slidingly arranged in the sliding rail, the upper end of the support is fixedly connected with a guide rail, the inner surface of the guide rail is slidingly connected with a connecting seat, the lower surface of the connecting seat is fixedly connected with a laser, the connecting seat is provided with a pre-tightening assembly for increasing the pre-tightening force between the connecting seat and the guide rail to prevent deviation during movement, and the side surface of the guide rail is provided with a deceleration assembly for slowing down the displacement speed of the laser during cutting.

[0006] According to the laser processing precision sheet metal device, the pre-tightening assembly comprises: a bidirectional screw rod one, two sleeve rings and a push plate, the bidirectional screw rod one is rotationally connected to the inner surface of the connecting seat, the two sleeve rings are threadedly connected to the two threads opposite to each other of the bidirectional screw rod one, the side walls of the two sleeve rings are symmetrically hinged with two inclined jacks, and the free ends of the inclined jacks on the same side are jointly hinged with the push plate, and the push plate is movably abutted with the inner wall of the guide rail, the side surface of the connecting seat is fixedly connected with a motor two, and the bidirectional screw rod one is driven by the motor two.

[0007] According to the laser processing precision sheet metal device of the present invention, the deceleration assembly includes: a cover, a top plate, multiple preload springs, and multiple dampers. The cover is fixedly connected to the side surface of the guide rail, and the top plate is slidably connected to the inner surface of the cover. The multiple preload springs and dampers are all fixedly connected to the side of the top plate facing the push plate. The preload springs are sleeved on the outside of the dampers, and their free ends are all fixedly connected to a hemispherical head. The multiple hemispherical heads move in contact with the push plate.

[0008] According to the laser processing precision sheet metal apparatus of the present invention, a stud is threaded through the side surface of the housing, and one end of the stud is rotatably connected to the side of the top plate away from the preload spring.

[0009] According to the laser processing precision sheet metal device of the present invention, the deceleration assembly further includes: two through slots, the two through slots being symmetrically arranged on the guide rail, and two limiting plates being slidably arranged in each through slot, the limiting plates being movably abutting against the plurality of hemispherical heads; a positioning ruler is fixedly connected to the side surface of the limiting plate, and a bidirectional lead screw is threadedly connected to the two positioning rulers on the same side and threadedly connected to two opposite threaded sections of the bidirectional lead screw.

[0010] According to the laser processing precision sheet metal device of the present invention, a sliding groove is provided in the guide rail and the sliding groove is located above the connecting seat. A transfer slider is slidably connected to the inner surface of the sliding groove. A reserved groove is provided inside the transfer slider. A connecting slider is slidably connected inside the reserved groove and the lower surface of the connecting slider is fixedly connected to the connecting seat.

[0011] According to the laser processing precision sheet metal device of the present invention, two vertical plates are fixedly connected to the upper surface of the guide rail, and a transmission screw is rotatably connected between the two vertical plates. A motor is fixedly connected to the side surface of any one of the vertical plates, and the transmission screw is driven by the motor.

[0012] According to the laser processing precision sheet metal device of the present invention, the outer wall of the transmission lead screw is threadedly connected to a housing, and multiple connecting springs are fixedly connected to two opposite surfaces of the housing. A connecting block is fixedly connected between the multiple opposite connecting springs, and the connecting block is fixedly connected to the upper surface of the transfer slider.

[0013] Beneficial effects:

[0014] The laser processing precision sheet metal device of this technical solution can effectively prevent the laser from shifting due to the movement of the connecting seat through the pre-tightening component. The continuous pre-tightening force ensures that the connecting seat and the guide rail fit tightly, avoiding displacement deviation of the laser during high-speed movement or cutting vibration, and improving the cutting position accuracy.

[0015] By using a deceleration assembly in conjunction with a pre-tightening assembly, precise deceleration within the cutting range can be achieved. By using a positioning ruler in conjunction with a two-way lead screw to adjust the position of the limiting plate, only the hemispherical head within the cutting range participates in deceleration. The connecting seat automatically decelerates when entering the cutting area, further ensuring the cutting accuracy of the laser and the stability of the cutting process. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a front view structural diagram of the laser processing precision sheet metal device of the present invention;

[0018] Figure 2 This is a right-side cross-sectional view of the laser processing precision sheet metal device of the present invention;

[0019] Figure 3 This is a front cross-sectional view of the laser processing precision sheet metal device of the present invention;

[0020] Figure 4 This is an enlarged cross-sectional view of the housing of the laser processing precision sheet metal device of the present invention;

[0021] Figure 5 This is a top cross-sectional view of the laser processing precision sheet metal device of the present invention;

[0022] Figure 6 This is an enlarged cross-sectional view of the connecting seat of the laser processing precision sheet metal device of the present invention.

[0023] Legend:

[0024] 1. Slide table; 2. Slide rail; 3. Worktable; 4. Two-way lead screw II; 5. Guide rail; 6. Laser; 7. Bracket; 8. Connecting spring; 9. Transmission lead screw; 10. Motor I; 11. Transfer slider; 12. Connecting block; 13. Housing; 14. Slide groove; 15. Reserved groove; 16. Connecting slider; 17. Connecting seat; 18. Cover; 19. Stud; 20. Top plate; 21. Damper; 22. Preload spring; 23. Hemispherical head; 24. Through groove; 25. Limiting plate; 26. Push plate; 27. Angled push rod; 28. Two-way lead screw I; 29. ​​Collar; 30. Motor II; 31. Positioning ruler. Detailed Implementation

[0025] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] Reference Figures 1-6According to an embodiment of the present invention, a laser processing precision sheet metal device includes: a worktable 3, a slide rail 2 and a bracket 7 fixedly connected to the upper surface of the worktable 3, and a slide table 1 slidably disposed inside the slide rail 2. The upper end of the bracket 7 is fixedly connected to a guide rail 5, the inner surface of the guide rail 5 is slidably connected to a connecting seat 17, and the lower surface of the connecting seat 17 is fixedly connected to a laser 6.

[0027] Specifically, laser 6 refers to a laser cutter. A laser cutter is a high-energy laser beam used to precisely cut, contour process, or irregularly shaped materials such as metals and non-metals. It is a high-efficiency processing equipment widely used in industrial production, precision manufacturing, and other fields. This is an existing mature technology and is well known to those in the field, so it will not be elaborated on in this article.

[0028] Considering that the preload between the connecting seat 17 and the guide rail 5 is insufficient or non-adjustable, and is prone to deviation due to high-speed movement and cutting vibration, a preload assembly is provided inside the connecting seat 17 to increase the preload between the connecting seat 17 and the guide rail 5 and prevent deviation during movement. The preload assembly includes: a double-acting screw 28, two collars 29, and a push plate 26. The double-acting screw 28 is rotatably connected to the inner surface of the connecting seat 17. The two collars 29 are threaded to the two opposite ends of the double-acting screw 28. The side walls of the two collars 29 are symmetrically hinged with two inclined push rods 27, and the free ends of the inclined push rods 27 on the same side are hinged to the push plate 26. The push plate 26 is in movable contact with the inner wall of the guide rail 5. A motor 30 is fixedly connected to the side surface of the connecting seat 17, and the double-acting screw 28 is driven by the motor 30.

[0029] Motor 2 30 drives the bidirectional lead screw 1 28 to rotate, causing the collar 29 to move towards each other. Through the inclined push rod 27, the push plate 26 is pushed against the inner wall of the guide rail 5, providing an adjustable continuous preload to prevent the connecting seat 17 from shifting and improve the positioning accuracy of the laser 6.

[0030] Considering that traditional deceleration mechanisms cannot accurately adapt to the cutting range and are prone to affecting cutting accuracy and stability due to speed fluctuations, a deceleration component is provided on the side surface of the guide rail 5 to slow down the displacement speed of the laser 6 during cutting. The deceleration component includes: a cover 18, a top plate 20, multiple preload springs 22, and multiple dampers 21. The cover 18 is fixedly connected to the side surface of the guide rail 5, and the top plate 20 is slidably connected to the inner surface of the cover 18. The multiple preload springs 22 and dampers 21 are all fixedly connected to the side of the top plate 20 facing the push plate 26. The preload springs 22 are sleeved on the outside of the dampers 21, and their free ends are jointly fixedly connected to a hemisphere. The head 23, multiple hemispherical heads 23, and push plate 26 are movably abutted together. The side surface of the cover 18 is threaded with studs 19. One end of the studs 19 is rotatably connected to the top plate 20 on the side away from the pre-tightening spring 22. The deceleration assembly also includes: two through slots 24, which are symmetrically arranged on the guide rail 5. Two limiting plates 25 are slidably arranged in each through slot 24. The limiting plates 25 are movably abutted together with multiple hemispherical heads 23. The side surface of the limiting plates 25 is fixedly connected with positioning rulers 31. Two bidirectional lead screws 4 are threaded through the two positioning rulers 31 on the same side and are respectively threaded to two opposite threaded sections of the bidirectional lead screws 4.

[0031] The positioning ruler 31 and the two-way lead screw 4 adjust the limiting plate 25 to retain the hemispherical head 23 within the cutting range. The stud 19 adjusts the top plate 20 to compress the pre-tightening spring 22. When the push plate 26 touches the hemispherical head 23, it is decelerated by the damper 21 and the pre-tightening spring 22, realizing automatic deceleration of the cutting range, balancing efficiency and accuracy, and improving cutting stability.

[0032] In summary, the improvement of this embodiment lies in:

[0033] The pre-tightening component can effectively prevent the laser 6 from shifting due to the connection seat 17. The continuous pre-tightening force ensures that the connection seat 17 and the guide rail 5 fit tightly, avoiding displacement deviation of the laser 6 during high-speed movement or cutting vibration, and improving the cutting position accuracy.

[0034] The deceleration assembly, in conjunction with the pre-tightening assembly, enables precise deceleration within the cutting range. The position of the limiting plate 25 is adjusted by the positioning ruler 31 and the bidirectional lead screw 4, ensuring that only the hemispherical head 23 within the cutting range participates in deceleration. The connecting seat 17 automatically decelerates upon entering the cutting area, further guaranteeing the cutting accuracy of the laser 6 and the stability of the cutting process.

[0035] Based on the above, other structures also need to be disclosed in detail, such as:

[0036] Considering the need to adapt to the left and right movement of the connecting seat 17 when adjusting the preload, a slide groove 14 is provided in the guide rail 5 and the slide groove 14 is located above the connecting seat 17. A transfer slider 11 is slidably connected to the inner surface of the slide groove 14. A reserved groove 15 is provided inside the transfer slider 11. A connecting slider 16 is slidably connected inside the reserved groove 15 and the lower surface of the connecting slider 16 is fixedly connected to the connecting seat 17.

[0037] When the preload of the connecting seat 17 is adjusted and moved left and right within the guide rail 5, the reserved groove 15 in the transfer slider 11, together with the connecting slider 16, can cooperate with the movement of the connecting seat 17.

[0038] Considering the movement of the connecting seat 17, two vertical plates are fixedly connected to the upper surface of the guide rail 5, and a transmission screw 9 is rotatably connected between the two vertical plates. A motor 10 is fixedly connected to the side surface of any vertical plate, and the transmission screw 9 is driven by the motor 10.

[0039] The motor 10 drives the transmission screw 9 to move, thereby causing the housing 13 to move.

[0040] Considering that the transmission screw 9 will still maintain the original transmission speed during deceleration, the outer wall of the transmission screw 9 is threaded with a housing 13. Multiple connecting springs 8 are fixedly connected to the two opposite surfaces of the housing 13. A connecting block 12 is fixedly connected between the multiple opposite connecting springs 8. The connecting block 12 is fixedly connected to the upper surface of the transfer slider 11.

[0041] At the moment of deceleration, the housing 13 maintains its original speed displacement, while the connecting block 12 prevents the transmission screw 9 from jamming by compressing the connecting spring 8.

[0042] Working principle: The working principle of this equipment revolves around the coordinated linkage of multiple components: the worktable 3 provides a stable bearing foundation for the whole, the slide table 1 can slide along the slide rail 2, the bracket 7 supports and fixes the guide rail 5, the connecting seat 17 slides with the guide rail 5 and the lower end is fixed with the laser 6, forming the core processing motion frame.

[0043] In terms of power drive, motor 10 drives the transmission screw 9 to rotate, which drives the threaded housing 13 to move. The housing 13 is connected to the connecting block 12 through the connecting springs 8 on both sides, which in turn drives the transfer slider 11 to slide along the slide groove 14 in the guide rail 5. The reserved groove 15 inside the transfer slider 11 cooperates with the connecting slider 16 to realize the smooth movement of the connecting seat 17.

[0044] In terms of pre-tightening protection, motor 230 drives the bidirectional lead screw 28 to rotate, which drives the two collars 29 to move towards each other. Through the inclined push rod 27, the push plate 26 is pushed against the inner wall of the guide rail 5, providing an adjustable and continuous pre-tightening force for the connecting seat 17, avoiding deviation caused by high-speed movement or cutting vibration.

[0045] During the cutting deceleration, the positioning ruler 31, in conjunction with the two-way lead screw 4, adjusts the limiting plate 25 in the through groove 24, retaining only the hemispherical head 23 within the cutting range. The stud 19 can adjust the pre-tightening spring 22 in front of the top plate 20. When the connecting seat 17 drives the push plate 26 into the cutting area and touches the hemispherical head 23, the damper 21 and the pre-tightening spring 22 work together to achieve smooth deceleration. At the same time, the connecting spring 8 can buffer the impact force at the moment of deceleration and prevent the transmission lead screw 9 from jamming. All components work together to ensure the positioning accuracy and cutting stability of the laser 6, and complete the precise processing of sheet metal parts.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A laser processing precision sheet metal device, comprising: The workbench (3), a slide rail (2) and a bracket (7) fixedly connected to the upper surface of the workbench (3), and a slide table (1) slidably disposed inside the slide rail (2), wherein a guide rail (5) is fixedly connected to the upper end of the bracket (7), a connecting seat (17) is slidably connected to the inner surface of the guide rail (5), and a laser (6) is fixedly connected to the lower surface of the connecting seat (17), characterized in that: The connecting seat (17) is provided with a pre-tightening component to increase the pre-tightening force between the connecting seat (17) and the guide rail (5) and prevent it from shifting during movement; The side surface of the guide rail (5) is provided with a deceleration component to slow down the displacement speed of the laser (6) during cutting.

2. The laser processing precision sheet metal apparatus according to claim 1, characterized in that, The pre-tightening assembly includes: a bidirectional lead screw (28), two collars (29), and a push plate (26). The bidirectional lead screw (28) is rotatably connected to the inner surface of the connecting seat (17). The two collars (29) are respectively threaded to the two opposite ends of the two-way lead screw (28). The side walls of the two collars (29) are symmetrically hinged with two inclined push rods (27), and the free ends of the inclined push rods (27) on the same side are hinged with a push plate (26). The push plate (26) is in movable contact with the inner wall of the guide rail (5). The side surface of the connecting seat (17) is fixedly connected to the second motor (30), and the first bidirectional lead screw (28) is driven by the second motor (30).

3. The laser processing precision sheet metal apparatus according to claim 2, characterized in that, The deceleration assembly includes: a cover (18), a top plate (20), multiple preload springs (22), and multiple dampers (21). The cover (18) is fixedly connected to the side surface of the guide rail (5), and the top plate (20) is slidably connected to the inner surface of the cover (18). The multiple preload springs (22) and dampers (21) are all fixedly connected to the side of the top plate (20) facing the push plate (26). The preload spring (22) is sleeved on the outside of the damper (21) and its free end is fixedly connected to a hemispherical head (23). The multiple hemispherical heads (23) are in movable contact with the push plate (26).

4. The laser processing precision sheet metal apparatus according to claim 3, characterized in that, The side surface of the cover (18) is threaded with a stud (19), one end of which is rotatably connected to the top plate (20) on the side away from the preload spring (22).

5. The laser processing precision sheet metal apparatus according to claim 3, characterized in that, The deceleration assembly further includes: two through slots (24), the two through slots (24) are symmetrically arranged on the guide rail (5), and two limiting plates (25) are slidably arranged in each through slot (24), the limiting plates (25) are movably abutting against the multiple hemispherical heads (23); The side surface of the limiting plate (25) is fixedly connected with a positioning ruler (31), and two positioning rulers (31) on the same side are threadedly connected with a double-acting screw rod (4) and respectively threaded to two opposite threaded sections of the double-acting screw rod (4).

6. The laser processing precision sheet metal apparatus according to claim 1, characterized in that, The guide rail (5) is provided with a slide groove (14) and the slide groove (14) is located above the connecting seat (17). The inner surface of the slide groove (14) is slidably connected to a transfer slider (11). The interior of the transfer slider (11) is provided with a reserved groove (15). The interior of the reserved groove (15) is slidably connected to a connecting slider (16), and the lower surface of the connecting slider (16) is fixedly connected to the connecting seat (17).

7. The laser processing precision sheet metal apparatus according to claim 6, characterized in that, Two vertical plates are fixedly connected to the upper surface of the guide rail (5), and a transmission screw (9) is rotatably connected between the two vertical plates. A motor (10) is fixedly connected to the side surface of any one of the vertical plates, and the transmission screw (9) is driven by the motor (10).

8. The laser processing precision sheet metal apparatus according to claim 7, characterized in that, The outer wall of the transmission screw (9) is threadedly connected to a housing (13). Multiple connecting springs (8) are fixedly connected to two opposite surfaces of the housing (13). A connecting block (12) is fixedly connected between the multiple opposite connecting springs (8). The connecting block (12) is fixedly connected to the upper surface of the transfer slider (11).

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