Follow-up assembly of laser cutting head, laser cutting head and laser cutting machine

Abstract

The utility model provides a follow-up assembly of a laser cutting head, the laser cutting head and a laser cutting machine, and relates to the technical field of laser cutting, the follow-up assembly comprises a follow-up assembly shell, a follow-up driving device and a sliding block assembly, and the follow-up assembly shell is provided with a lead screw nut; the follow-up driving device comprises a lead screw, the lead screw is connected with a lead screw nut in a matched mode, and the lead screw rotates to drive the follow-up assembly shell to move. The sliding block assembly comprises a sliding rail and a sliding block, and the sliding rail is fixed to the light guide cylinder shell. Wherein a containing cavity is defined by the follow-up assembly shell, the sliding block assembly is located in the containing cavity, and the sliding block is connected with the inner side of the follow-up assembly shell. By installing the sliding rail in the follow-up assembly shell, the sliding rail and the sliding block can be prevented from being polluted, the maintenance cost is reduced, the service life is prolonged, and the moving precision of the sliding block can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a follow-up assembly of a laser cutting head, a laser cutting head and a laser cutting machine Background Art

[0002] As a new type of thermal cutting technology, laser cutting uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, evaporates to form holes. As the beam moves relative to the material, the holes continuously form a very narrow slit, completing the cutting of the material. Laser cutting has the advantages of high cutting speed and high production efficiency

[0003] The follow-up assembly of the laser cutting head needs to move along with the laser nozzle. At present, the slide rail and the slider of the follow-up assembly are easily contaminated, and the contamination may also cause damage to the slide rail, increasing the maintenance cost and also affecting the movement of the slider on the slide rail Summary of the Utility Model

[0004] The utility model provides a follow-up assembly of a laser cutting head, a laser cutting head and a laser cutting machine to solve the technical problem of how to avoid contamination of the slide rail and the slider in the follow-up assembly

[0005] An embodiment of the utility model provides a follow-up assembly of a laser cutting head. The follow-up assembly includes: a follow-up assembly housing, the follow-up assembly housing is provided with a lead screw nut; a follow-up driving device, including a lead screw, the lead screw is in mating connection with the lead screw nut, and the rotation of the lead screw can drive the follow-up assembly housing to move; a slider assembly, including a slide rail and a slider, the slide rail is fixed on the light guide tube housing; wherein, the follow-up assembly housing surrounds to form a receiving cavity, the slider assembly is located in the receiving cavity, and the slider is connected to the inner side of the follow-up assembly housing

[0006] Further, the follow-up assembly housing includes a slider mounting plate and a cover plate, the slider mounting plate is connected to the slider, the cover plate faces the reflector, and the cover plate is movably connected to the slider mounting plate

[0007] Further, the slider assembly includes a ball retainer type linear guide rail, the ball retainer type linear guide rail includes a linear guide rail and a rolling slider, the rolling slider is connected to the slider mounting plate, and the linear guide rail is fixed on the light guide tube housing

[0008] Further, in the receiving cavity, the ball retainer type linear guide rails are arranged on both sides of the light guide tube housing

[0009] Further, the follow-up driving device includes a motor base, a motor, a first pulley and a second pulley. The motor is arranged side by side with the lead screw. The output shaft of the motor is connected to the first pulley, the lead screw is connected to the second pulley, and the first pulley and the second pulley are connected by a belt.

[0010] Further, the follow-up driving device includes a protective cover, which is connected to the motor base and wraps the first pulley and the second pulley.

[0011] An embodiment of the present invention provides a laser cutting head, which includes: a collimation assembly including a collimation assembly light guide tube for conducting laser; a driving assembly connected to the collimation assembly; the above-mentioned follow-up assembly, the follow-up assembly includes a flange connected to the driving assembly; a focusing assembly connected to the follow-up assembly.

[0012] Further, the driving assembly includes a roller and a gear ring that cooperate with each other. The gear ring is connected to the flange, and the roller rotates to drive the gear ring and the flange to rotate.

[0013] An embodiment of the present invention provides a laser cutting machine, which includes: the above-mentioned laser cutting head; a cantilever beam on which the laser cutting head is installed; a machine frame, with one end of the cantilever beam connected to the machine frame.

[0014] Further, the cantilever beam has a receiving cavity, and a strengthening component is arranged in the receiving cavity for improving the structural strength of the cantilever beam.

[0015] The present invention provides a follow-up assembly, a laser cutting head and a laser cutting machine for a laser cutting head. The follow-up assembly includes a follow-up assembly housing, a follow-up driving device and a slider assembly. The follow-up assembly housing is installed with a lead screw nut; the follow-up driving device includes a lead screw, which is connected to the lead screw nut in a cooperative manner, and the rotation of the lead screw can drive the follow-up assembly housing to move; the slider assembly includes a slide rail and a slider, and the slide rail is fixed on the light guide tube housing; wherein, the follow-up assembly housing surrounds to form a receiving cavity, the slider assembly is located in the receiving cavity, and the slider is connected to the inner side of the follow-up assembly housing. By adding the design of the follow-up assembly housing and installing the slide rail in the follow-up assembly housing, it is possible to avoid the contamination of the slide rail and the slider, effectively extend the service life of the slider assembly, and also ensure the smoothness of the slider moving on the slide rail and improve the accuracy of the slider movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a follow-up assembly without a follow-up assembly housing provided by an embodiment of the present invention;

[0017] Figure 2 Structural schematic diagram of adding a follower assembly housing to a follower assembly provided by an embodiment of the present utility model;

[0018] Figure 3 Cross-sectional view of a follower assembly provided by an embodiment of the present utility model;

[0019] Figure 4 Cross-sectional view of a laser cutting head provided by an embodiment of the present utility model;

[0020] Figure 5 Structural schematic diagram of a laser cutting head provided by an embodiment of the present utility model;

[0021] Figure 6 Structural schematic diagram of a laser cutting machine provided by an embodiment of the present utility model;

[0022] Figure 7 Structural schematic diagram of the laser cutting machine from another perspective provided by an embodiment of the present utility model.

[0023] Description of reference numerals

[0024] 1, laser cutting machine; 10, laser cutting head; 20, cantilever beam; 21, cavity; 22, strengthening component; 30, frame; 100, follower assembly; 110, follower assembly housing; 111, slider mounting plate; 112, cover plate; 113, focusing mounting plate; 114, accommodation cavity; 120, follower driving device; 121, lead screw; 122, motor base; 123, motor; 124, first pulley; 125, second pulley; 126, protective cover; 130, slider assembly; 131, slide rail; 132, slider; 140, flange; 150, light guide cylinder housing; 160, optical path channel; 170, reflecting mirror; 200, collimation assembly; 210, laser generator; 220, collimation assembly light guide cylinder; 300, driving assembly; 300A, first driving assembly; 300B, second driving assembly; 310, roller; 320, gear ring; 330, servo motor; 340, reducer; 400, focusing assembly; 410, focusing device; 420, sleeve; 430, laser nozzle; 440, anti-collision device; 450, protective mirror device. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Each specific technical feature described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of each specific technical feature in the present utility model will not be described separately.

[0027] In the following description, the terms "first / second / ..." involved are only used to distinguish different objects, and do not indicate that there are the same or related relationships between the objects. It should be understood that the orientation descriptions "above", "below", "outside", and "inside" involved are all in the orientation in the normal use state, and the "left" and "right" directions indicate the left and right directions shown in the specific corresponding schematic diagram, which may or may not be the left and right directions in the normal use state.

[0028] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element. The term "connection" includes both direct connection and indirect connection unless otherwise specified.

[0029] In the specific implementation manner, the follow-up assembly of the laser cutting head provided in the present application is applicable to any type of laser cutting machine. Exemplarily, the follow-up assembly is applicable to a laser cutting machine of the laser melting cutting type; Exemplarily, the follow-up assembly is applicable to a laser cutting machine of the laser oxidation cutting type; Exemplarily, the follow-up assembly is applicable to a laser cutting machine of the laser gasification cutting type; The follow-up assembly is also applicable to high-power laser cutting; The follow-up assembly is also applicable to a three-dimensional five-axis laser cutting machine. For the convenience of description, taking the follow-up assembly applicable to a laser cutting machine of the laser melting cutting type as an example, the structure of the follow-up assembly is described by way of example.

[0030] Currently, in the follow-up assembly of the related laser cutting head, the slider and the slide rail are in an external state, and the slider and the slide rail are easily contaminated by impurities such as dust, resulting in easy damage to the follow-up assembly and increasing the maintenance cost. To solve this problem, the present application provides a follow-up assembly of a laser cutting head to solve the above problem.

[0031] In some embodiments, such as Figures 1 to 3As shown in the figure, the follow-up assembly 100 includes a follow-up assembly housing 110, a follow-up drive device 120, and a slider assembly 130. The follow-up assembly housing 110 is installed with a lead screw nut. The follow-up drive device 120 includes a lead screw 121. The lead screw 121 is connected to the lead screw nut in a mating manner. When the lead screw 121 rotates, it can drive the follow-up assembly housing 110 to move. The slider assembly 130 includes a slide rail 131 and a slider 132. The slide rail 131 is fixed on the light guide cylinder housing 150. Among them, the follow-up assembly housing 110 surrounds to form a receiving cavity 114. The slider assembly 130 is located in the receiving cavity 114, and the slider 132 is connected to the inner side of the follow-up assembly housing 110.

[0032] Specifically, during the laser cutting process, the follow-up assembly 100 enables the laser nozzle 430 to maintain a preset distance from the cutting surface, efficiently completing the cutting of various workpieces and various uneven curved surfaces. The lead screw nut is installed on the top of the follow-up assembly housing 110. The lead screw nut is connected to the lead screw 121 in a mating manner. Under the rotation of the lead screw 121, the lead screw nut moves relative to the lead screw 121, and the follow-up assembly housing 110 connected to the lead screw nut can also move relatively. Its moving direction is the extending direction of the lead screw 121.

[0033] The follow-up assembly housing 110 includes a slider mounting plate 111, a cover plate 112, and a focusing mounting plate 113. The focusing mounting plate 113 is connected to the focusing assembly 400. The movement of the follow-up assembly housing 110 drives the movement of the focusing mounting plate 113, and the movement of the focusing mounting plate 113 drives the movement of the focusing assembly 400, thereby realizing the following function of the laser nozzle 430. Considering the adjustment requirements of the mirror 170 in the light guide cylinder, in order to facilitate the operation of the mirror 170, the cover plate 112 is arranged opposite to the mirror 170. Here, the opposite can be understood as the normal line of the plane where the mirror 170 is located can pass through the cover plate 112. Specifically, the size of the cover plate 112 is not limited. The cover plate 112 is movably connected to the slider mounting plate 111, and it is only necessary to facilitate opening to meet the adjustment requirements.

[0034] The slider assembly 130 includes a slide rail 131 and a slider 132. In order to prevent the slide rail 131 and the slider 132 from being contaminated, the follow-up assembly housing 110 surrounds to form a receiving cavity 114. The slider assembly 130 is located in the receiving cavity 114, and the slider 132 is connected to the inner side of the follow-up assembly housing 110. For example, the slider 132 is connected to the slider mounting plate 111. The slide rail 131 is fixed on the light guide cylinder housing 150, and the slide rail 131 plays a guiding role for the slider 132.

[0035] The present utility model provides a follow-up assembly of a laser cutting head, a laser cutting head and a laser cutting machine. The follow-up assembly includes a follow-up assembly housing, a follow-up driving device and a slider assembly. The follow-up assembly housing is provided with a lead screw nut. The follow-up driving device includes a lead screw, which is cooperatively connected with the lead screw nut. The rotation of the lead screw can drive the follow-up assembly housing to move. The slider assembly includes a slide rail and a slider. The slide rail is fixed on the light guide cylinder housing. Wherein, the follow-up assembly housing surrounds to form an accommodation cavity, the slider assembly is located in the accommodation cavity, and the slider is connected to the inner side of the follow-up assembly housing. By adding the design of the follow-up assembly housing and installing the slide rail in the follow-up assembly housing, it is possible to avoid the contamination of the slide rail and the slider, effectively extend the service life of the slider assembly, ensure the smoothness of the movement of the slider on the slide rail, and improve the accuracy of the movement of the slider.

[0036] In some embodiments, as Figure 1 shown, in order to further improve the smoothness of the movement of the slider 132 on the slide rail 131, the slider assembly 130 includes a ball retainer type linear guide rail. The ball retainer type linear guide rail includes a linear guide rail and a rolling slider. The slide rail 131 is a linear guide rail, and the slider 132 is a rolling slider. The rolling slider is connected to the slider mounting plate 111. The specific connection method is not limited. For example, the rolling slider is provided with mounting holes, and the rolling slider is fixed on the slider mounting plate 111 by a threaded connection method. The linear guide rail is fixed on the light guide cylinder housing 150. The linear guide rail cooperates with the rolling slider, and the linear guide rail plays a guiding role in the movement of the rolling slider to ensure the accuracy of the movement of the laser nozzle 430.

[0037] In some embodiments, as Figure 1 shown, in order to further improve the stability of the movement of the follow-up assembly housing 110, ball retainer type linear guide rails are provided on both sides of the light guide cylinder housing 150 in the accommodation cavity 114. It can be simply understood that when the optical path channel 160 is parallel to the horizontal plane, the slider assemblies 130 on both sides are symmetrically arranged with respect to the vertical plane where the optical path channel 160 is located.

[0038] In some embodiments, as Figure 1As shown in the figure, in order to save space and facilitate laser cutting, the follow-up drive device 120 includes a motor base 122, a motor 123, a first pulley 124 and a second pulley 125. The motor base 122 is fixed on the flange 140, and the motor 123 is installed and fixed on the motor base 122. The motor 123 can be a servo motor. In order to facilitate saving space in the vertical direction, the motor 123 is arranged side by side with the lead screw 121. Briefly speaking, the motor 123 is located on one side of the lead screw 121. The output shaft of the motor 123 is arranged upward. The output shaft of the motor 123 is fixedly connected to the first pulley 124, and the lead screw 121 is fixedly connected to the second pulley 125. The first pulley 124 and the second pulley 125 are connected by a belt. The rotation of the motor 123 drives the lead screw 121 to rotate through the action of the belt and the pulleys, so that the lead screw nut drives the follow-up assembly housing 110 to move.

[0039] In some embodiments, as Figure 2 shown, considering the connection positions of the motor 123 and the first pulley 124, the connection positions of the lead screw 121 and the second pulley 125, and the positions where the belt is respectively connected to the first pulley 124 and the second pulley 125 may accumulate dust, affecting the smoothness of power transmission. In order to minimize the influence of dust as much as possible, the follow-up drive device 120 includes a protective cover 126. The protective cover 126 is connected to the motor base 122, and the protective cover 126 wraps the first pulley 124 and the second pulley 125.

[0040] This embodiment also provides a laser cutting head, as Figure 4 and Figure 5 shown, the laser cutting head 10 includes a collimation assembly 200, a drive assembly 300, a follow-up assembly 100 and a focusing assembly 400. The collimation assembly 200 includes a collimation assembly light guide tube 220, and the collimation assembly light guide tube 220 is used to conduct laser; the drive assembly 300 is connected to the collimation assembly 200, the follow-up assembly 100 includes a flange 140, and the flange 140 is connected to the drive assembly 300; the focusing assembly 400 is connected to the follow-up assembly 100.

[0041] Specifically, the collimation assembly 200 uses the laser beam as a reference line formed by directional emission in space for collimation. It includes a laser generator 210 and a collimation assembly light guide tube 220. The laser generator 210 is used to access the optical fiber, and the collimation assembly light guide tube 220 is used to conduct laser.

[0042] One end of the drive assembly 300 is connected to the collimation assembly 200, and the other end is connected to the follow-up assembly 100. The drive assembly 300 drives the follow-up assembly 100 and the focusing assembly 400 to rotate, so that the focusing assembly 400 emits laser for cutting. The specific transmission form of the drive assembly 300 is not limited. Exemplarily, the drive assembly 300 can be transmitted by means of gears. Exemplarily, the drive assembly 300 can also be transmitted in the form of cooperation between rollers and a gear ring. Specific embodiments will be given later and will not be elaborated here. It should be noted that the drive assembly 300 can include a set of transmission structures or two sets of transmission structures. For the convenience of understanding, a coordinate system is established for auxiliary explanation. The extension direction of the laser generator 210 is defined as the vertical direction as the Z axis, and the directions perpendicular to the Z axis are the X axis and the Y axis. The X axis and the Y axis form a horizontal plane. Exemplarily, when the drive assembly 300 only includes a set of transmission structures, the laser emitted by the focusing assembly 400 can only be cut on the XY plane. Exemplarily, when the drive assembly 300 includes two sets of transmission structures, cutting at any position in the XYZ three dimensions can be achieved.

[0043] The focusing assembly 400 includes a focusing device 410, a sleeve 420, and a laser nozzle 430, and emits laser for cutting through the laser nozzle 430. In order to protect the laser nozzle 430, the focusing assembly 400 can also be provided with an anti-collision device 440 and a protective mirror device 450.

[0044] In some embodiments, such as Figure 4 and Figure 5As shown, the drive assembly 300 includes a roller 310 and a gear ring 320 that cooperate with each other. The gear ring 320 is connected to the flange 140, and the roller 310 rotates to drive the gear ring 320 and the flange 140 to rotate. Specifically, the roller 310 has a roller body and roller columns, and the roller columns are uniformly arranged on the roller body in the circumferential direction. The edge of the gear ring 320 has an engaging portion that cooperates with the roller columns. The motor is connected to the roller 310, and the motor drives the roller 310 to rotate. The gear ring 320 is sleeved on the sleeve for optical path transmission, and the gear ring 320 is connected to the components that need to rotate. For example, if the follower assembly 100 and the focusing assembly 400 need to rotate, the gear ring 320 is connected to the flange 140 of the follower assembly 100. The roller 310 rotates under the action of the motor, thereby driving the gear ring 320 to rotate. The rotation of the gear ring 320 drives the flange 140 to rotate. By using the zero-backlash transmission of the roller and gear ring, the transmission accuracy of the drive assembly 300 is improved. At the same time, by adopting the cooperation mode of the roller 310 and the gear ring 320, the transmission accuracy is high. The drive assembly 300 can select a servo motor 330 and a reducer 340. The servo motor 330 is connected to the roller 310 through the reducer 340. Compared with the traditional DD motor (direct drive motor) that can only be selected, the use of the servo motor 330 can reduce the weight of the drive assembly 300, improve the accuracy of the entire laser cutting head 10, and improve the stability of the laser cutting machine 1. At the same time, the size of the laser cutting head 10 using the servo motor 330 is smaller, making the laser cutting head 10 more suitable for cutting complex parts.

[0045] This embodiment also provides a laser cutting machine 1, as Figure 6 and Figure 7As shown in the figure, the laser cutting machine 1 includes a laser cutting head 10, a cantilever beam 20, and a machine frame 30. The laser cutting head 10 is installed on the cantilever beam 20, and one end of the cantilever beam 20 is connected to the machine frame 30. Specifically, one end of the cantilever beam 20 is connected to the machine frame 30, and this connection includes a fixed connection, that is, one end of the cantilever beam 20 is fixed to the machine frame 30; it also includes a movable connection, that is, the cantilever beam 20 can move relative to the machine frame 30. The specific movable connection method is not limited here, and any device or structure that can cause relative movement between the cantilever beam 20 and the machine frame 30 meets the requirements of this case. For example, a slide rail is provided on the machine frame 30, and a chute is provided at one end of the cantilever beam 20. The chute of the cantilever beam 20 wraps the slide rail of the machine frame 30, and the cantilever beam 20 can slide on the machine frame 30. At the same time, the cooperation between the chute and the slide rail can effectively prevent the cantilever beam 20 from falling off the machine frame 30. Similarly, the machine frame 30 can be provided with a chute, and the cantilever beam 20 can be provided with a slide rail. One end of the cantilever beam 20 and the machine frame 30 can be connected by a single slide rail. Specifically, it can be understood that the cantilever beam 20 is provided with a chute, and the machine frame 30 is provided with a slide rail. The cantilever beam 20 is connected to the machine frame 30 through the cooperation of a single chute and the slide rail. In order to improve safety and at the same time reduce the bearing capacity of a single slide rail, multiple slide rails can be set, that is, the cantilever beam 20 is provided with multiple chutes, and the machine frame 30 is provided with multiple slide rails. Through the cooperation of multiple chutes and multiple slide rails, the bearing capacity at the connection position between the cantilever beam 20 and the machine frame 30 can be effectively dispersed. In order to further improve the overall stability of the cantilever beam 20 and the machine frame 30, two slide rails are provided on the machine frame 30. The two slide rails are parallel and not in the same vertical plane. One is close to the top of the machine frame 30 to provide a pulling force for the cantilever beam 20, and the other is near the middle position of the machine frame 30 to provide a supporting force for the cantilever beam. The stability of the cantilever beam 20 and the machine frame 30 is effectively improved through the diagonal tension structure.

[0046] The laser cutting head 10 is installed on the cantilever beam 20. A chute can also be provided on the cantilever beam 20. The chute is arranged along the extension direction of the cantilever beam 20. The laser cutting head 10 can move along the chute of the cantilever beam 20. At the same time, the laser cutting head 10 also moves in the up and down direction by means of a ball screw or a transmission gear, etc. The up and down direction is the Z-axis direction expressed in this field. Through the movement of the cantilever beam 20 along the machine frame 30, the movement of the laser cutting head 10 along the cantilever beam 20, and the up and down movement of the laser cutting head 10 itself, the laser cutting head 10 can meet the movement in three-dimensional directions.

[0047] In some embodiments, such as Figure 7As shown, the cantilever beam 20 has a cavity 21, and a strengthening component 22 is arranged in the cavity 21. The strengthening component 22 is used to improve the structural strength of the cantilever beam 20. Specifically, the cantilever beam 20 has a hollow cavity 21. Here, the hollow means the space surrounded by the cantilever beam 20, not only representing that the interior of the entire cantilever beam 20 is in a hollow state. There can be corresponding structures inside the cantilever beam 20. The specific structure of the cantilever beam 20 is not limited. The cantilever beam 20 can include only an upper plate and a bottom plate, or only an upper plate and side plates. The cantilever beam 20 satisfies that one end can be connected to the frame 30, and at the same time, other devices can be installed and fixed on the cantilever beam 20, such as installing a laser cutting head 10. For the convenience of description, hereinafter, the cantilever beam 20 in the form of a cable-stayed cantilever beam is taken as an example, and the cantilever beam 20 is a trapezoid. In order to reduce the weight of the cantilever beam 20, the cantilever beam 20 has a hollow cavity 21, and a strengthening component 22 is arranged in the cavity 21. The strengthening component 22 is any device or structure that can improve the structural strength of the cantilever beam 20. It should be noted that the connection between the strengthening component 22 and the cantilever beam 20 can be any form of connection, such as riveting, welding, and fixing through bolts and nuts. For the overall structural performance, the welding method can be selected for connection. Exemplarily, the strengthening component 22 can be a reinforcing plate. By arranging the reinforcing plate inside the cavity 21, the rigidity of the cantilever beam 20 is increased. The specific arrangement method of the reinforcing plate is not limited here. The reinforcing plate can be a flat plate or a plate with bends. For example, the reinforcing plate can be arranged vertically inside the cavity 21; for example, it can also be arranged horizontally inside the cavity 21; at the same time, multiple reinforcing plates can be spliced into a triangle to improve the structural stability and arranged inside the cavity 21. The arrangement of the reinforcing plate will be described in detail later, and will not be elaborated here. Exemplarily, the strengthening component 22 can also be a bearing platform. For example, a cylinder is arranged inside the cavity 21 to increase the rigidity of the cantilever beam 20; further, the inside of the cavity 21 can be a combination of a reinforcing plate and a bearing platform. Through the combination form of the reinforcing plate and the bearing platform, a cage structure is formed inside the cavity 21 by the strengthening component 22, effectively ensuring the rigidity of the cantilever beam 20 while reducing the weight of the cantilever beam 20.

[0048] The above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention.

Claims

1. A follower assembly of a laser cutting head, characterized in that: include: A follower assembly housing, wherein the follower assembly housing is provided with a lead screw nut; A follower drive device, comprising a screw rod, the screw rod is cooperatively connected with the screw rod nut, and the rotation of the screw rod can drive the follower assembly housing to move; The slider assembly comprises a slide rail and a slider, wherein the slide rail is fixed on the light guide tube housing; The follower assembly shell surrounds and forms an accommodating cavity, the slider assembly is located in the accommodating cavity, and the slider is connected to the inner side of the follower assembly shell.

2. The follower assembly according to claim 1, characterized in that: The follower assembly housing comprises a slider mounting plate and a cover plate, wherein the slider mounting plate is connected to the slider, the cover plate faces the reflector, and the cover plate is movably connected to the slider mounting plate.

3. The follower assembly according to claim 2, characterized in that: The slider assembly comprises a ball retainer type linear guide rail, the ball retainer type linear guide rail comprises a linear guide rail and a rolling slider, the rolling slider is connected to the slider mounting plate, and the linear guide rail is fixed on the light guide tube housing.

4. The follower assembly according to claim 3, characterized in that: In the accommodating cavity, the ball retainer type linear guide rails are arranged on both sides of the light guide tube housing.

5. The follower assembly according to claim 1, characterized in that: The follow-up drive device includes a motor seat, a motor, a first pulley and a second pulley. The motor and the screw rod are arranged side by side. The output shaft of the motor is connected to the first pulley, the screw rod is connected to the second pulley, and the first pulley and the second pulley are connected by a belt.

6. The follower assembly according to claim 5, characterized in that: The follow-up drive device includes a protective cover, which is connected to the motor base and wraps the first pulley and the second pulley.

7. A laser cutting head, characterized in that: include: A collimation assembly, comprising a collimation assembly light guide tube, wherein the collimation assembly light guide tube is used to conduct laser light; A driving assembly connected to the collimation assembly; The follower assembly according to any one of claims 1 to 6, wherein the follower assembly comprises a flange, and the flange is connected to the driving assembly; The focusing assembly is connected with the follower assembly.

8. The laser cutting head according to claim 7, characterized in that: The driving assembly includes a roller and a gear ring that cooperate with each other. The gear ring is connected to the flange. The roller rotates to drive the gear ring and the flange to rotate.

9. A laser cutting machine, characterized in that: include: The laser cutting head according to claim 7 or 8; a cantilever beam, the laser cutting head being mounted on the cantilever beam; A frame, one end of the cantilever beam is connected to the frame.

10. The laser cutting machine according to claim 9, characterized in that: The cantilever beam has a receiving cavity, and a reinforcing component is arranged in the receiving cavity. The reinforcing component is used to improve the structural strength of the cantilever beam.

Images