A laser cutting head adjustment mechanism

Abstract

The utility model discloses a kind of laser cutting head adjusting mechanism, belong to laser cutting machine technical field, including connecting column, carousel and two-way adjusting assembly, connecting column is used to connect the movement mechanism of laser cutting machine, movement mechanism drives connecting column to carry out three-axis movement;Carousel is rotatably installed in the bottom of connecting column by slewing mechanism;The connecting frame is displaced in two directions by two-way adjusting assembly.The utility model is by being provided with slewing mechanism, rotating mechanism and two-way adjusting assembly, so that laser cutting head has more flexible movement ability.The traditional horizontal laser cutting machine is provided with basic three-axis movement mechanism, i.e.the movement mechanism of X axis, Y axis and Z axis, connecting column is connected with the movement mechanism, so that connecting column can carry out three-axis movement, and the slewing mechanism between connecting column and carousel makes laser cutting head can rotate with the axis of carousel as center, which makes cutting head can adjust its orientation on horizontal plane at any time.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically to a laser cutting head adjustment mechanism. Background Technology

[0002] Laser cutting technology, as a high-precision and high-efficiency modern processing method, has been widely used in metal manufacturing, automotive industry, aerospace and other fields. Traditional laser cutting equipment typically relies on a three-axis (X, Y, Z axis) motion system to drive the laser cutting head to complete planar two-dimensional or simple three-dimensional cutting operations. The general structure of a laser cutting machine includes a frame, a gantry frame slidably mounted on the frame, and a lifting unit slidably mounted on the gantry frame, with the laser cutting head fixed on the lifting unit.

[0003] In practical applications, especially in the field of thick plate welding, it is often necessary to bevel the edges of workpieces to facilitate subsequent welding operations and obtain high-quality welds. Currently, most laser cutting equipment uses two main methods for this type of beveling: The first method involves adjusting the posture of the entire workpiece through a clamping mechanism to position the edge to be cut horizontally or vertically, and then using the cutting head for vertical cutting. This method is not only cumbersome and inefficient, but also extremely difficult or even impossible to reposition and clamp large and heavy workpieces. The second method involves using an additional, structurally complex multi-axis robot (such as a six-axis robot) to hold the cutting head. While this method offers high flexibility, it is also expensive. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a laser cutting head adjustment mechanism that enables the adjustment of the laser cutting head's elevation angle and rotation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a laser cutting head adjustment mechanism, comprising: A connecting column is used to connect the motion mechanism of the laser cutting machine, and the motion mechanism drives the connecting column to perform three-axis motion. The turntable is mounted on the bottom of the connecting column and rotates via a rotary mechanism. A two-way adjustment component is located below the turntable; The connecting frame is connected to the turntable via a two-way adjustment assembly; The laser cutting head is connected to the connecting frame via a rotating mechanism; The rotation axis of the rotating mechanism is perpendicular to the rotation axis of the slewing mechanism; the connecting frame can be displaced in two directions through a bidirectional adjustment component.

[0006] Preferably, the rotary mechanism includes: The inner ring is fixedly connected to the bottom of the connecting post; An outer ring is rotatably mounted on an inner ring, and the outer ring has a toothed pattern. A rotary motor is fixed on a connecting column, and a gear that meshes with a tooth pattern is fixed on the output shaft of the rotary motor.

[0007] Preferably, the rotary motor is fixed to a fixed plate by bolts, one end of the fixed plate has a notch that matches the outer wall of the connecting column, and the side of the connecting column away from the notch is provided with a hoop plate that is bolted to the fixed plate.

[0008] Preferably, the bidirectional adjustment assembly includes an adjustment unit one and an adjustment unit two. The adjustment unit one includes a slide rail one fixed to the bottom of the turntable and a slide block one slidably mounted on the slide rail one. The adjustment unit two includes a slide rail two fixed to the connecting frame and a slide block two slidably mounted on the slide rail two. The slide block one and the slide block two are fixedly connected.

[0009] Preferably, there are two slide rails, which are parallel to each other, and the slide block is slidably mounted on the two slide rails; a lead screw is rotatably mounted on the bottom of the turntable through a bearing seat, the lead screw passes through the slide block and is threaded into the slide block, and a motor for driving the lead screw to rotate is fixedly mounted on the turntable.

[0010] Preferably, a second motor is fixed on the connecting frame, and a second lead screw is rotatably mounted on the connecting frame via a bearing seat. The second lead screw passes through a second slide and is threadedly engaged with the second slide. The first lead screw is perpendicular to the second lead screw.

[0011] Preferably, the connecting frame is inverted L-shaped, including a horizontal plate and a vertical plate fixed to one end of the horizontal plate, the second adjustment unit is disposed on the horizontal plate, and the rotating mechanism is disposed on the vertical plate.

[0012] Preferably, the rotating mechanism includes: A rotating shaft is rotatably mounted on the bottom of the vertical plate via bearings; The laser cutting head is fixed to the connecting seat by bolts. A rotating sleeve, one end of which is fixed to a connecting seat and the other end of which is fixed to a rotating shaft, and the rotating sleeve is fixed with two toothed patterns; A rotary motor is fixed on a vertical plate, and a gear two that meshes with tooth pattern two is fixed on the output shaft of the rotary motor.

[0013] Preferably, the axis of the rotating shaft is perpendicular to the axis of the outer ring.

[0014] Preferably, a flange is fixed to the top of the connecting column.

[0015] The beneficial effects of this utility model are as follows: This invention, by incorporating a rotary mechanism, a rotating mechanism, and a bidirectional adjustment component, enables the laser cutting head to possess greater flexibility in its movement. Traditional horizontal laser cutting machines are equipped with a basic three-axis motion mechanism, namely the X-axis, Y-axis, and Z-axis motion mechanisms. A connecting column is connected to this motion mechanism, allowing the connecting column to perform three-axis movement. The rotary mechanism between the connecting column and the turntable allows the laser cutting head to rotate around the turntable's axis, enabling the cutting head to adjust its orientation on the horizontal plane at any time. The rotating mechanism allows the laser cutting head to tilt around the horizontal axis, eliminating the need to re-clamp the workpiece and allowing for high-quality beveling directly through the tilt of the laser cutting head, significantly improving efficiency, especially suitable for thick plate components requiring welding. The bidirectional adjustment component allows for adjustment of the relative position of the laser cutting head and the turntable in the horizontal plane, facilitating the calibration of the laser cutting head's position. Attached Figure Description

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

[0017] Figure 1 A top-down perspective view of a laser cutting head adjustment mechanism provided for an embodiment of this utility model.

[0018] Figure 2 A side view of a laser cutting head adjustment mechanism provided in an embodiment of this utility model.

[0019] Figure 3 A rear-view perspective perspective of a laser cutting head adjustment mechanism provided for an embodiment of this utility model.

[0020] Figure 4 This is a perspective view of a laser cutting head adjustment mechanism provided in an embodiment of the present invention, showing the laser cutting head moving along slide rail two.

[0021] Figure 5 This is a schematic diagram of a laser cutting head adjustment mechanism provided in an embodiment of the present invention, in which the laser cutting head is tilted.

[0022] Figure 6 A top view of the overall structure of a laser cutting head adjustment mechanism provided in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Connecting column, 2. Turntable, 3. Connecting frame, 4. Laser cutting head, 5. Inner ring, 6. Outer ring, 7. Tooth pattern one, 8. Rotary motor, 9. Fixing plate, 10. Hoop plate, 11. Slide rail one, 12. Slide block one, 13. Slide rail two, 14. Slide block two, 15. Lead screw one, 16. Motor one, 17. Motor two, 18. Lead screw two, 19. Horizontal plate, 20. Vertical plate, 21. Rotating shaft, 22. Connecting seat, 23. Rotating sleeve, 24. Tooth pattern two, 25. Rotary motor, 26. Flange. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1 like Figures 1 to 6 As shown, Embodiment 1 of this utility model provides a laser cutting head 4 adjustment mechanism, which is mainly used to realize flexible adjustment of the laser cutting head 4 in multiple directions and is suitable for high-precision bevel cutting and complex trajectory processing.

[0026] This utility model mainly includes a connecting column 1, with a flange 26 welded to the top of the connecting column 1. The flange 26 allows for a rigid connection with the motion mechanism of the laser cutting machine. The motion mechanism can be a common three-axis gantry structure, capable of driving the connecting column 1 to move along the X, Y, and Z directions.

[0027] A rotary mechanism is provided at the bottom of the connecting column 1. This rotary mechanism includes an inner ring 5 fixedly connected to the connecting column 1 and an outer ring 6 rotatable relative to the inner ring 5. The connection between the inner ring 5 and the outer ring 6 adopts a slewing bearing structure. The outer ring 6 has continuous toothed patterns 7 machined on its outer circumference. A rotary motor 8 is mounted on the side of the connecting column 1 via a fixing plate 9. One end of the fixing plate 9 has a notch that matches the curvature of the outer wall of the connecting column 1. The notch abuts against the side wall of the connecting column 1, and a hoop plate 10 is bolted to the fixing plate 9. The hoop plate 10 cooperates with the fixing plate 9 to fix the connecting column 1 in the notch. The rotary motor 8 is fixedly mounted on the fixing plate 9 by bolts. Its output shaft end is equipped with a gear, which meshes with the toothed patterns 7 on the outer ring 6. By rotating the rotary motor 8 in both forward and reverse directions, the outer ring 6 can achieve a full rotation relative to the connecting column 1. The rotary motor 8 can be a geared servo motor, and the gear and toothed patterns 7 also form a reduction transmission, which can improve the rotation control accuracy of the outer ring 6.

[0028] A turntable 2 is fixedly installed at the bottom of the outer ring 6, and a bidirectional adjustment assembly is provided below the turntable 2. The bidirectional adjustment assembly includes a horizontally arranged adjustment unit one and a vertically arranged adjustment unit two. The adjustment unit one includes two parallel slide rails 11, which are fixed to the bottom surface of the turntable 2; a slide block 12 spans the two slide rails 11 and can slide along them; a lead screw 15 is also installed at the bottom of the turntable 2 through a bearing seat. The lead screw 15 is arranged parallel to the slide rails 11 and passes through the slide block 12, forming a threaded transmission engagement with it; a motor 16 is also fixedly installed on the turntable 2 to drive the lead screw 15 to rotate, thereby driving the slide block 12 to move laterally.

[0029] The bottom of the second adjustment unit is fixed with an inverted L-shaped connecting frame 3, which includes a horizontally arranged horizontal plate 19 and a vertically arranged vertical plate 20. The horizontal plate 19 is connected to the second slide block 14. The second adjustment unit includes two parallel slide rails 13 fixed on the connecting frame 3, and a second slide block 14 is slidably mounted on the two slide rails 13. A lead screw 18 is mounted on the connecting frame 3 through a bearing seat and is parallel to the slide rails 13. The lead screw 18 passes through the second slide block 14 and is threadedly engaged with it. A second motor 17 is fixed on the connecting frame 3 and is used to drive the lead screw 18 to rotate, thereby realizing the longitudinal movement of the second slide block 14.

[0030] Lead screw 15 is perpendicular to lead screw 2 18. Motor 16 and Motor 2 17 can respectively control the connecting frame 3 to move along the axial direction of lead screw 15 or lead screw 2 18 in the horizontal plane. A rotating mechanism is provided at the bottom of the vertical plate 20. The laser cutting head 4 is fixed to the connecting seat 22 by bolts, and the connecting seat 22 is located at the movable end of the rotating mechanism and can rotate under the action of the rotating mechanism.

[0031] The axis of the rotary mechanism is vertical, while the axis of the rotating mechanism is horizontal, and the two are perpendicular to each other. This allows the laser cutting head 4 to deflect at any angle in the horizontal plane and adjust its pitch around the horizontal axis, making it particularly suitable for high-quality cutting of welded bevels in thick plates. Motor 16 and Motor 2 17 work together to adjust the axial distance between the laser cutting head 4 and the rotary mechanism. When the motion mechanism on the laser cutting machine body moves the laser cutting head 4 to a certain position, the rotary mechanism drives the laser cutting head 4 to rotate, thus cutting a circular hole in the workpiece. This eliminates the need for a gantry frame to move during cutting, saving power and improving cutting accuracy.

[0032] Example 2 Based on Embodiment 1, Embodiment 2 further designs the specific structure of the rotating mechanism. For example... Figure 5As shown, the rotating mechanism includes a rotating shaft 21 and a rotating sleeve 23. The rotating shaft 21 is mounted on the bottom of the vertical plate 20 via bearings. One end of the rotating sleeve 23 is fixed to the rotating shaft 21, and the other end is fixedly connected to the connecting seat 22. The outer circumference of the rotating sleeve 23 is provided with a second toothed pattern 24. A rotary motor 25 is fixed on the vertical plate 20, fixed to the side of the vertical plate 20, and its output shaft end is equipped with a second gear that meshes with the second toothed pattern 24.

[0033] The axis of the rotating shaft 21 is perpendicular to the axis of the outer ring 6. When the rotary motor 25 starts, the rotating sleeve 23 can be driven to rotate on the rotating shaft 21 through the meshing of the gear two and the tooth pattern two 24, thereby realizing the rotation of the connecting seat 22 and the laser cutting head 4 around the axis of the rotating shaft 21.

[0034] Example 3 Based on Embodiments 1 and 2, this Embodiment 3 incorporates some detailed design improvements to the adjusting mechanism. A double-row roller bearing is installed between the outer ring 6 and the inner ring 5 to enhance stability and load-bearing capacity during rotation.

[0035] A rotation limit sensor was also added between the turntable 2 and the connecting column 1 to detect whether the turntable 2 exceeds the safe rotation range, thereby improving the safety of equipment operation.

[0036] The two motors 16 and 17 in the bidirectional adjustment assembly are both servo motors and equipped with high-precision photoelectric encoders, which can realize closed-loop control of slide 12 and slide 24, further improving the accuracy of position adjustment.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A laser cutting head adjustment mechanism, characterized in that, include: A connecting column is used to connect the motion mechanism of the laser cutting machine, and the motion mechanism drives the connecting column to perform three-axis motion. The turntable is mounted on the bottom of the connecting column and rotates via a rotary mechanism. A two-way adjustment component is located below the turntable; The connecting frame is connected to the turntable via a two-way adjustment assembly; The laser cutting head is connected to the connecting frame via a rotating mechanism; The rotation axis of the rotating mechanism is perpendicular to the rotation axis of the slewing mechanism; the connecting frame can be displaced in two directions through a bidirectional adjustment component.

2. The laser cutting head adjustment mechanism as described in claim 1, characterized in that, The rotary mechanism includes: The inner ring is fixedly connected to the bottom of the connecting post; An outer ring is rotatably mounted on an inner ring, and the outer ring has a toothed pattern. A rotary motor is fixed on a connecting column, and a gear that meshes with a tooth pattern is fixed on the output shaft of the rotary motor.

3. The laser cutting head adjustment mechanism as described in claim 2, characterized in that, The rotary motor is fixed to a fixed plate by bolts. One end of the fixed plate has a notch that matches the outer wall of the connecting column. The side of the connecting column away from the notch is provided with a hoop plate that is bolted to the fixed plate.

4. The laser cutting head adjustment mechanism as described in claim 2, characterized in that, The bidirectional adjustment assembly includes an adjustment unit one and an adjustment unit two. The adjustment unit one includes a slide rail one fixed to the bottom of the turntable and a slide seat one slidably mounted on the slide rail one. The adjustment unit two includes a slide rail two fixed to the connecting frame and a slide seat two slidably mounted on the slide rail two. The slide seat one and the slide seat two are fixedly connected.

5. The laser cutting head adjustment mechanism as described in claim 4, characterized in that, There are two slide rails, which are parallel to each other. The slide block is slidably mounted on the two slide rails. A lead screw is rotatably mounted on the bottom of the turntable via a bearing seat. The lead screw passes through the slide block and is threaded into it. A motor for driving the lead screw to rotate is fixedly mounted on the turntable.

6. The laser cutting head adjustment mechanism as described in claim 5, characterized in that, A second motor is fixed on the connecting frame, and a second lead screw is rotatably mounted on the connecting frame via a bearing seat. The second lead screw passes through a second slide and is threaded into the second slide. The first lead screw is perpendicular to the second lead screw.

7. The laser cutting head adjustment mechanism as described in claim 4, characterized in that, The connecting frame is inverted L-shaped and includes a horizontal plate and a vertical plate fixed to one end of the horizontal plate. The second adjustment unit is set on the horizontal plate, and the rotating mechanism is set on the vertical plate.

8. A laser cutting head adjustment mechanism as described in claim 7, characterized in that, The rotating mechanism includes: A rotating shaft is rotatably mounted on the bottom of the vertical plate via bearings; The laser cutting head is fixed to the connecting seat by bolts. A rotating sleeve, one end of which is fixed to a connecting seat and the other end of which is fixed to a rotating shaft, and the rotating sleeve is fixed with two toothed patterns; A rotary motor is fixed on a vertical plate, and a gear two that meshes with tooth pattern two is fixed on the output shaft of the rotary motor.

9. A laser cutting head adjustment mechanism as described in claim 8, characterized in that, The axis of the rotating shaft is perpendicular to the axis of the outer ring.

10. A laser cutting head adjustment mechanism as described in claim 1, characterized in that, A flange is fixed to the top of the connecting column.

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