Laser cutting structure

Abstract

The utility model relates to the technical field of laser cutting and discloses a laser cutting structure which comprises a Z-axis square tube extending vertically, a flat bottom plate fixedly arranged at the bottom of the Z-axis square tube, a bent frame arranged below the flat bottom plate, a C-axis motor arranged at the upper end of the bent frame, a B-axis motor arranged at the lower end of the bent frame and a cutting module connected with the output end of the B-axis motor. The machine head of the C-axis motor is sleeved on a hanging flat plate, a receding opening for the machine body of the C-axis motor to penetrate through is formed in the middle of the hanging flat plate, and the hanging flat plate is connected with the flat bottom plate through a leveling structure. According to the laser cutting structure, the axis posture of the C-axis motor can be accurately adjusted through the leveling structure, the quality of cut products can be improved, the rejection rate is reduced, the overall precision of laser cutting equipment can be effectively improved, and the movement accuracy of the cutting module during working is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field, especially a laser cutting structure. BACKGROUND

[0002] In the manufacturing industry field of hardware fittings, automobile fittings and the like, with the increasing demand of batch cutting, the research and development of laser cutting equipment is more and more important. Laser cutting equipment usually relies on the joint operation of X axis, Y axis, Z axis, B axis, C axis and U axis to make the laser cutting head have multi-axis movement ability, so as to meet the complex cutting process requirements.

[0003] However, the existing technology such as the patent (the announcement number is CN 221134474 U) provided laser head multi-axis linkage scheme has obvious defects. In the scheme, the flat bottom plate is fixedly arranged at the bottom of the Z-axis driving assembly, and the C-axis rotary driving assembly is directly installed on the flat bottom plate. Due to the constraint of enterprise manufacturing and processing precision level, it is difficult to ensure the absolute flatness during the processing of the flat bottom plate, and the C-axis rotary driving assembly will inevitably produce certain error during installation, which leads to the movement deflection phenomenon of the C-axis in actual operation. And, once the installation is completed, due to the structure limitation, the perpendicularity of the C-axis cannot be effectively adjusted, which seriously affects the precision and quality of laser cutting, and limits the application of such laser cutting equipment in batch cutting production of hardware fittings, automobile fittings and the like with high cutting precision requirements.

[0004] It can be seen that the prior art still needs to be improved and improved. UTILITY MODEL CONTENTS

[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a laser cutting structure, which indirectly adjusts the axis deviation of the C-axis motor through the leveling structure, and makes up for the problems caused by the insufficient manufacturing precision of the flat bottom plate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A laser cutting structure, comprising a vertically extending Z-axis square tunnel, a flat bottom plate fixedly arranged at the bottom of the Z-axis square tunnel, a bent frame arranged below the flat bottom plate, a C-axis motor arranged at the upper end of the bent frame, a B-axis motor arranged at the lower end of the bent frame, and a cutting module connected with the output end of the B-axis motor, the head of the C-axis motor is sleeved on a hanging flat plate, the middle part of the hanging flat plate is provided with an avoiding opening for the body of the C-axis motor to pass through, and the hanging flat plate is connected with the flat bottom plate through the leveling structure.

[0008] As a further improvement of the above technical solution, the leveling structure comprises vertical screw rods arranged at three corner edges of the flat bottom plate and a spherical joint bearing arranged at the remaining corner edge and rotatable in all directions, the four corner edges of the suspended flat plate are provided with through holes through which the screw rod bodies of the three vertical screw rods and the spherical joint bearing pass, each vertical screw rod is provided with an upper adjusting nut abutting against the top surface of the suspended flat plate, each vertical screw rod is provided with a lower adjusting nut abutting against the bottom surface of the suspended flat plate, and the screw rod body of the spherical joint bearing is provided with a locking nut for fixing the suspended flat plate to the spherical joint bearing.

[0009] As a further improvement of the above technical solution, a flat medium is arranged between the upper adjusting nut and the suspended flat plate, and a spring medium is arranged between the lower adjusting nut and the suspended flat plate.

[0010] As a further improvement of the above technical solution, a flange ring is arranged at the avoiding opening of the suspended flat plate, and the head of the C-shaft motor is connected to the flange ring.

[0011] As a further improvement of the above technical solution, a downward static pointer is arranged on the suspended flat plate, a dynamic pointer is arranged on the bending frame, and the static pointer and the dynamic pointer are aligned with each other when the bending frame is rotated to a reference position about the B-shaft.

[0012] As a further improvement of the above technical solution, the inside of the Z-shaft square channel is provided with a plurality of inner supporting plates arranged vertically and spaced apart, and a plurality of lightening holes are arranged on the side surface of the Z-shaft square channel.

[0013] As a further improvement of the above technical solution, the back surface of the Z-shaft square channel is provided with two vertically extending guide rails and a rack located between the two guide rails.

[0014] As a further improvement of the above technical solution, the cutting module comprises a laser cutting head connected to the output end of the B-shaft motor.

[0015] As a further improvement of the above technical solution, the cutting module comprises a U-shaft linear module connected to the output end of the B-shaft motor and a laser cutting head arranged on the sliding table of the U-shaft linear module. The laser cutting structure provided by the utility model can accurately adjust the axial posture of the C-shaft motor through the leveling structure, which is beneficial to improve the quality of the cutting product, reduce the waste rate, effectively improve the overall precision of the laser cutting equipment, and ensure the motion accuracy of the cutting module during work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the laser cutting structure Figure 1 .

[0017] Figure 2 It is a three-dimensional view of the laser cutting structure Figure 1 It is a local enlarged view of the A area in the middle.

[0018] Figure 3 For laser cutting structure of three-dimensional Figure 2 .

[0019] Figure 4 For Figure 3 Local enlarged view of B area in the middle.

[0020] Figure 5 For the structure diagram of the hanging flat plate.

[0021] Main element symbol explanation: 1-Z axis square through, 11-inner support plate, 12-weight reduction hole, 2-flat bottom plate, 3-bending frame, 4-C shaft motor, 5-B shaft motor, 6-hanging flat plate, 61-flange ring, 62-through hole, 63-avoidance opening, 71-vertical screw rod, 72-up adjusting nut, 73-down adjusting nut, 74-positioning piece, 75-elastic medium, 76-ball joint bearing, 77-locking nut, 78-static pointer, 79-moving pointer, 81-guide rail, 82-rack, 9-cutting module, 91-U axis linear module, 92-laser cutting head. DETAILED DESCRIPTION

[0022] The utility model provides a kind of laser cutting structure, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following with reference to drawing and taking example to further detail the utility model of embodiment.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the protection scope of the utility model.

[0023] Please refer to Figures 1 to 4 The utility model provides a kind of laser cutting structure, including vertically extending Z axis square through 1, flat bottom plate 2 being fixed in the bottom of Z axis square through 1, bending frame 3 being arranged below flat bottom plate 2, C shaft motor 4 being arranged at the upper end of bending frame 3, B shaft motor 5 being arranged at the lower end of bending frame 3, cutting module 9 being connected with the output end of B shaft motor 5, the head of C shaft motor 4 is sleeved on a hanging flat plate 6, the middle part of the hanging flat plate 6 is provided with the avoidance opening 63 for the body of C shaft motor 4 to pass through, and the hanging flat plate 6 is connected with flat bottom plate 2 by leveling structure.

[0024] When laser cutting structure is debugged at factory, the levelness of hanging flat plate 6 relative to flat bottom plate 2 can be adjusted by leveling structure, thereby indirectly adjusting the posture of C shaft motor 4, so that cutting module 9 associated with C shaft motor 4 can work in suitable horizontal state, ensure the movement coordination and precision between each component during laser cutting process, reduce cutting error or equipment unstable operation caused by bad posture such as inclination and other problems.

[0025] Compared with the prior art, the laser cutting structure can accurately adjust the axis posture of the C-axis motor through the leveling structure, which is beneficial to improve the quality of the cutting product, reduce the waste rate, effectively improve the overall precision of the laser cutting equipment, and ensure the movement accuracy of the cutting module 9 during work. Moreover, the leveling structure helps to maintain stable operation of the equipment, reduces vibration, wear and other problems caused by poor component posture of the equipment, thereby prolonging the service life of the equipment, reducing the maintenance cost and downtime of the equipment, improving the production efficiency, and better meeting the production needs and ensuring the product quality in batch cutting production in the hardware fittings and automobile fittings manufacturing industry.

[0026] Specifically, as shown in Figure 2 、 Figure 4 and Figure 5 , the leveling structure includes vertical screws 71 arranged at three corner edges of the flat bottom plate 2 and a ball joint bearing 76 arranged at the remaining corner edge and capable of universal rotation, the four corner edges of the suspension flat plate 6 are provided with through holes 62 through which the screw bodies of the three vertical screws 71 and the ball joint bearing 76 pass, each vertical screw 71 is provided with an upper adjusting nut 72 abutting against the top surface of the suspension flat plate 6, each vertical screw 71 is provided with a lower adjusting nut 73 abutting against the bottom surface of the suspension flat plate 6, and the screw body of the ball joint bearing 76 is provided with a locking nut 77 fixedly connecting the suspension flat plate 6 and the ball joint bearing 76. The position adjustment of the upper adjusting nut 72 and the lower adjusting nut 73 on the vertical screw 71 can conveniently finely adjust the levelness of the suspension flat plate 6. The ball joint bearing 76 can adapt to a certain angle deviation, ensure the leveling flexibility and accuracy in different installation conditions and equipment operation process, effectively solve the C-axis motor posture change problem caused by rack manufacturing error, installation deviation or equipment operation vibration, and ensure high-precision operation of the laser cutting equipment.

[0027] In addition, the upper adjusting nut 72 and the lower adjusting nut 73 are jointly held in an up-down manner, so that the connection between the suspension flat plate 6 and the vertical screw 71 is more stable, which can effectively resist various external disturbances during equipment operation and prevent displacement or shaking of the suspension flat plate 6. At the same time, the movable joint body of the ball joint bearing 76 is arranged on the flat bottom plate 2 through the positioning member 74, and the locking nut 77 on the screw body of the ball joint bearing 76 fixedly connects the suspension flat plate 6 and the ball joint bearing 76, which further enhances the stability of the overall structure under complex working conditions, ensures the reliable work of the C-axis motor and components such as the cutting module 9 connected thereto during laser cutting, and improves the consistency of cutting quality.

[0028] Further, a flat medium is arranged between the upper adjusting nut 72 and the suspension plate 6, and the flat surface of the flat medium can evenly distribute the pressure applied by the upper adjusting nut 72 on the suspension plate 6. In this way, the local pressure can be prevented from being too large to cause indentation or deformation on the surface of the suspension plate 6, the wear of the suspension plate 6 is reduced, the service life of the suspension plate 6 is prolonged, and the long-term stable operation of the leveling structure is ensured.

[0029] Preferably, a spring medium 75 is arranged between the lower adjusting nut 73 and the suspension plate 6. During the operation of the equipment, when subjected to impact force caused by external vibration or internal mechanical movement, the spring medium 75 can play a role in buffering and shock absorption. It can absorb and disperse these impact forces, reduce their impact on the leveling structure and components such as the C-axis motor, the suspension plate 6, etc. connected thereto, prevent the components from loosening, deforming or being damaged due to excessive impact, ensure the stability and reliability of the equipment, reduce the incidence of equipment failure, and improve the operation safety of the equipment.

[0030] Further, as shown in Figure 5 The head of the C-axis motor 4 is connected with the flange ring 61. Compared with a simple direct connection, the flange ring 61 can evenly disperse various forces borne by the head, including its own gravity, torque generated during operation, and additional forces caused by vibration or other external factors during the operation of the equipment. This uniform stress characteristic effectively reduces the local stress concentration at the connection site, reduces the risk of connection loosening or damage, ensures that the C-axis motor 4 can still be stably installed on the suspension plate 6 under long-term and high-intensity working conditions, thereby ensuring the stability of the overall structure of the laser cutting equipment and the reliability of the operation.

[0031] Preferably, a downward static pointer 78 is arranged on the suspension plate 6, and a dynamic pointer 79 is arranged on the bending frame 3. When the bending frame 3 is rotated to the reference position around the B-axis, the static pointer 78 and the dynamic pointer 79 are aligned with each other, which provides an intuitive and accurate reference positioning mark for the equipment. During the initial installation and debugging stage of the equipment, the operator can quickly and accurately adjust the bending frame 3 to the standard reference position according to the alignment of the pointers, ensuring that the initial installation posture of the B-axis motor and related cutting modules 9 meets the design requirements. During the long-term operation of the equipment, if the position of the bending frame 3 deviates due to equipment vibration, component wear or other reasons, the relative positional relationship between the static pointer 78 and the dynamic pointer 79 can be checked to find and recalibrate in time, effectively ensuring the positioning accuracy of the laser cutting equipment in each working stage, thereby improving the dimensional accuracy and quality stability of the cutting products.

[0032] The inside of the Z-axis square channel 1 is provided with a plurality of vertically spaced inner support plates 11. This internal support structure enhances the overall rigidity of the Z-axis square channel 1, making the frame of the entire laser cutting device more stable. For example, when the cutting module 9 is performing high-speed cutting operations, vibrations of the device can have a greater impact on the Z-axis square channel 1. The inner support plates 11 can reduce the damage of such vibrations to the structure of the Z-axis square channel 1, thereby ensuring the precision and stability of the device and improving the cutting quality.

[0033] Preferably, the Z-axis square channel 1 is provided with a plurality of weight-reducing holes 12 on the side surface, which can effectively reduce the weight of the Z-axis square channel and the movement energy consumption of the entire laser cutting structure.

[0034] The back surface of the Z-axis square channel 1 is provided with two vertically extending guide rails 81 and a rack 82 located between the two guide rails 81. The rack 82 cooperates with the driving device to realize power transmission, and drives the cutting mechanism and other components to move up and down along the guide rails 81.

[0035] In one embodiment, the cutting module 9 includes a laser cutting head 92 connected to the output end of the B-axis motor 5. The laser cutting head 92 can perform ±90-degree cutting along the B-axis and ±180-degree cutting along the C-axis, giving the laser cutting structure powerful three-dimensional machining capability. In the field of hardware manufacturing, product shapes are often complex and diverse. For example, some metal parts with multi-angle bending and special-shaped profiles. Through the large-angle movement range of the B-axis and the C-axis, the laser cutting head 92 can cut into the material from different directions, realizing one-time continuous cutting of complex shapes without the need for multiple clamping or equipment replacement, greatly improving the processing efficiency, while reducing the cumulative error caused by multiple positioning, ensuring the precision of the product

[0036] In the field of hardware fittings, many high-end products such as precision molds, customized metal connectors, etc. often have complex three-dimensional curved surface structures. In another embodiment, the cutting module 9 includes a U-axis linear module 91 connected to the output end of the B-axis motor 5 and a laser cutting head 92 arranged on the sliding table of the U-axis linear module 91. The laser cutting head 92 can surround the workpiece in all directions through the large-angle motion range of B-axis positive and negative 90 degrees and C-axis positive and negative 180 degrees, and cooperate with the U-axis linear module to realize accurate walking in the depth direction, so as to closely follow the curved surface profile for high-precision cutting, ensuring the accurate position of each cutting point, and the processed product has smooth curved surface and high dimensional accuracy, greatly meeting the needs of hardware fitting fine and complex processing and improving product added value. For automobile parts production, such as automobile engine intake manifold and complex body frame structure, etc., usually contain a large number of different surface hole positions, notches and different angle inclined edges. The three-axis cooperative motion laser cutting head 92 can be positioned at the accurate position of these different surface features at one time, without step-by-step processing and multiple clamping calibration like traditional equipment, avoiding cumulative error, whether cutting a specific shape on an inclined plane or punching a hole at a different angle intersection, it can be done at one time, ensuring the assembly accuracy and overall performance of automobile parts.

[0037] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0038] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection or can communicate with each other, it can be direct connection, or indirect connection through intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] It can be understood that for ordinary skilled persons in the art, the technical scheme and the utility model concept of the utility model can be replaced or changed equivalently, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A laser cutting structure, comprising a Z-axis square tunnel extending vertically, a flat bottom plate fixed at the bottom of the Z-axis square tunnel, a bending frame arranged below the flat bottom plate, a C-axis motor arranged at the upper end of the bending frame, a B-axis motor arranged at the lower end of the bending frame, and a cutting module connected with the output end of the B-axis motor, characterized in that, The head of the C-shaft motor is sleeved on a suspension plate, the middle part of the suspension plate is provided with an avoiding opening for the body of the C-shaft motor, and the suspension plate is connected with the flat bottom plate through a leveling structure.

2. The laser-cut structure of claim 1, wherein, The leveling structure comprises vertical screw rods arranged on three corners of the flat bottom plate and a spherical joint bearing arranged on the remaining corner in a universal rotating manner, the four corners of the suspension plate are provided with through holes for the screw rod bodies of the three vertical screw rods and the spherical joint bearing, an upper adjusting nut is arranged on each vertical screw rod and abuts against the top surface of the suspension plate, a lower adjusting nut is arranged on each vertical screw rod and abuts against the bottom surface of the suspension plate, and the screw rod body of the spherical joint bearing is provided with a locking nut for fixing the suspension plate and the spherical joint bearing.

3. The laser-cut structure of claim 2, wherein, A flat medium is arranged between the upper adjusting nut and the suspension plate, and a spring medium is arranged between the lower adjusting nut and the suspension plate.

4. The laser cutting structure of claim 1, wherein, A flange ring is arranged at the avoiding opening of the suspension plate, and the head of the C-shaft motor is connected with the flange ring.

5. The laser cutting structure of claim 1, wherein, A downward static pointer is arranged on the suspension plate, a dynamic pointer is arranged on the bending frame, and the static pointer and the dynamic pointer are aligned with each other when the bending frame is rotated to a reference position around the B-shaft.

6. The laser-cut structure of claim 1, wherein, The inside of the Z-shaft square tunnel is provided with a plurality of inner support plates arranged in a vertical direction, and a plurality of lightening holes are arranged on the side surface of the Z-shaft square tunnel.

7. The laser cutting structure of claim 1, wherein, The back surface of the Z-shaft square tunnel is provided with two vertically extending guide rails and a rack located between the two guide rails.

8. The laser-cut structure according to any one of claims 1-7, characterized in that, The cutting module comprises a laser cutting head connected with the output end of the B-shaft motor.

9. The laser-cut structure according to any one of claims 1-7, wherein, The cutting module comprises a U-shaft linear module connected with the output end of the B-shaft motor and a laser cutting head arranged on the sliding table of the U-shaft linear module.

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