Laser processing equipment

Abstract

The utility model discloses laser processing equipment. The laser processing equipment comprises a driving device and a laser head, according to the technical scheme, the transmission belt of the driving device is provided with the tooth surface part and the non-tooth surface part, the tooth surface part is wound around the driving wheel, so that the transmission precision and the transmission efficiency of the belt transmission structure are high, and on the other hand, the non-tooth surface part is wound around the driven wheel, so that the transmission precision and the transmission efficiency of the belt transmission structure are improved. The problem of vibration caused by unstable tension of the transmission belt due to meshing of the belt teeth and the driven wheel is avoided, so that vibration of the transmission belt can be effectively reduced, and the transmission precision and the machining precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser engraving and cutting technical field, especially a kind of laser processing equipment. BACKGROUND

[0002] Laser processing utilizes the high energy density and high-precision positioning characteristics of laser beam. Laser forms a highly concentrated beam after focusing, which is directly irradiated to the workpiece surface, and the cutting, marking, welding, engraving and other processing methods are realized through the interaction of laser and workpiece. The energy of laser can be absorbed by the workpiece surface or a certain specific area, so as to heat it to high temperature, resulting in local melting, evaporation or ablation, etc. Physical process, so as to realize the processing target.

[0003] In related art, the laser processing equipment usually drives the laser head or workpiece to move by belt drive, but the belt drive is prone to vibration due to the cooperation between the belt teeth and the pulley, which affects the processing accuracy. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a motor device and laser processing equipment, to maintain the transmission stability of the transmission belt.

[0005] To achieve the above purpose, the utility model provides a kind of laser processing equipment, including driving device and laser head;

[0006] The driving device comprises:

[0007] Guide rail seat extends along the first direction;

[0008] Driving part;

[0009] Belt drive assembly, the belt drive assembly includes driving wheel, driven wheel and transmission belt, the driving wheel is drivingly connected with the driving part, the driven wheel is spaced apart from the driving wheel along the first direction, the inner side of the transmission belt includes tooth surface part and non-tooth surface part, the tooth surface part is arranged around the driving wheel, and the non-tooth surface part is arranged around the driven wheel;And,

[0010] Sliding part, the sliding part is slidingly installed on the guide rail seat and is fixedly connected with the transmission belt;The laser head is arranged on the sliding part to slide with the sliding part.

[0011] In some embodiments of the utility model, the driving part includes motor and encoder, the encoder is drivingly connected with the output shaft of the motor, and located on the side opposite to the motor and the guide rail seat.

[0012] In some embodiments of the utility model, the motor includes body and output shaft, the body and the output shaft are connected, and the encoder includes code disc and detection sensor.

[0013] The driving wheel is fixed to the output shaft;

[0014] The code disc is sleeved on the output shaft of the motor, and the detection sensor is installed at one end of the body towards the guide rail seat and can sense the code disc to detect the physical state change of the code disc.

[0015] In some embodiments of the utility model, the code disc is located between the driving wheel and the guide rail seat.

[0016] In some embodiments of the utility model, the detection sensor has a detection groove, and the edge of the code disc is located in the detection groove.

[0017] In some embodiments of the utility model, the body includes a shell and an assembly seat, the assembly seat is connected to the same side of the shell with the output shaft, the assembly seat is fixed to the guide rail seat, the assembly seat has a avoiding space and an avoiding hole communicating with the avoiding space, the avoiding space penetrates the assembly seat along the extension direction of the output shaft, the driving wheel and the output shaft are located in the avoiding space, the detection sensor is installed on the wall surface of the avoiding space, and the transmission belt is arranged in the avoiding hole.

[0018] In some embodiments of the utility model, the guide rail seat includes a plate body and two rail bodies, the driving member is installed on the plate body, the two rail bodies are connected to one side of the plate body in the second direction and are arranged in the first direction, the two rail bodies are oppositely arranged along the third direction, the sliding member is in sliding cooperation with the two rail bodies, and the third direction, the second direction and the first direction are perpendicular to each other.

[0019] In some embodiments of the utility model, the two rail bodies are integrally formed with the plate body.

[0020] In some embodiments of the utility model, the cross section of the two rail bodies is V-shaped or arc-shaped.

[0021] In some embodiments of the utility model, the sliding member includes a body and a plurality of pulleys, the plurality of pulleys are connected to one side of the body, the transmission belt and the plurality of pulleys are located on the same side of the body, the plurality of pulleys are located on both sides of the transmission belt in the third direction and are in sliding cooperation with the rail bodies.

[0022] In some embodiments of the utility model, the pulley includes a metal shaft and a plastic wheel body, the metal shaft is rotatably connected to the body, and the plastic wheel body is sleeved on the outer periphery of the metal shaft and is in sliding cooperation with the corresponding rail body.

[0023] In some embodiments of the utility model, one side of guide rail seat is equipped with sliding space, at least part of sliding member and belt drive assembly is located in sliding space,

[0024] The driving device further comprises a cover plate connected to the guide rail seat and covering the sliding space.

[0025] In some embodiments of the utility model, part of the cover plate and the guide rail seat are spaced apart in the second direction, part of the sliding member is arranged between the cover plate and the guide rail seat, and the sliding member extends at least one end of the cover plate in the third direction to connect the laser head, the third direction, the second direction and the first direction are perpendicular to each other.

[0026] In some embodiments of the utility model, the length ratio of the tooth surface part to the non-tooth surface part in the extension direction of the transmission belt is greater than or equal to 0.9 and less than or equal to 1.1.

[0027] In some embodiments of the utility model, the driven wheel is a light wheel.

[0028] In some embodiments of the utility model, during the movement of the transmission belt, the tooth surface part is always around the driving wheel, and the non-tooth surface part is always around the driven wheel.

[0029] In some embodiments of the utility model, the sliding member is fixedly connected with the tooth surface part of the transmission belt.

[0030] In some embodiments of the utility model, the tooth surface part is a plane, and the wheel surface of the driven wheel is a circular surface.

[0031] In some embodiments of the utility model, the tooth surface part is a V-shaped surface, and the wheel surface of the driven wheel is V-shaped.

[0032] In the technical scheme of the utility model, the transmission belt of the driving device is provided with a tooth surface part and a non-tooth surface part, the tooth surface part is arranged around the driving wheel, so that the transmission precision and transmission efficiency of the belt transmission structure are higher, on the other hand, the non-tooth surface part is arranged around the driven wheel, which avoids the problem that the transmission belt tension is unstable due to the meshing of the tooth and the driven wheel, and further generates vibration, so that the transmission belt vibration can be effectively reduced, and the transmission precision and machining precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0034] Figure 1 The structural schematic diagram of an embodiment of the laser processing equipment provided by the present application is shown in the figure.

[0035] Figure 2 The structural schematic diagram of an embodiment of the driving device provided by the present application is shown in the figure.

[0036] Figure 3 The exploded view of an embodiment of the driving device provided by the present application is shown in the figure.

[0037] Figure 4 For Figure 3 The enlarged view of A in the figure.

[0038] Figure 5 The partial structural schematic diagram in the present application is shown in the figure.

[0039] Explanation of reference numerals:

[0040] 100, laser processing equipment; 10, machine base; 20, driving device; 21, guide rail seat; 211, plate body; 212, rail body; 213, sliding space; 22, driving piece; 221, motor; 2211, machine body; 2212, output shaft; 2213, machine shell; 2214, assembly seat; 2215, avoiding space; 2216, avoiding opening; 222, encoder; 2221, code disc; 2222, detection sensor; 2223, detection groove; 23, belt transmission assembly; 231, driving wheel; 232, driven wheel; 233, transmission belt; 2331, non-tooth surface part; 2332, tooth surface part; 24, sliding piece; 241, body; 242, pulley; 2421, metal axle; 2422, plastic wheel body; 25, cover plate; 30, laser head.

[0041] The present application aims to realize, function features and advantages will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0043] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0044] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0045] Please refer to Figures 1 to 5 The utility model provides a kind of laser processing equipment 100, and laser processing equipment 100 specifically can be laser engraving machine, laser cutting machine, laser welding machine and equipment of different functions, the laser processing equipment 100 includes drive device 20 and laser head 30;Drive device 20 includes guide rail seat 21, driving piece 22, belt drive assembly 23 and sliding piece 24, guide rail seat 21 extends along first direction;Belt drive assembly 23 includes driving wheel 231, driven wheel 232 and transmission belt 233, driving wheel 231 is transmissionally connected with driving piece 22, driven wheel 232 is spaced apart from driving wheel 231 along first direction, the inside of transmission belt 233 includes tooth surface part 2332 and non tooth surface part 2331, tooth surface part 2332 is around driving wheel 231, non tooth surface part 2331 is around driven wheel 232;Sliding piece 24 is slidably installed in guide rail seat 21, and is fixedly connected with transmission belt 233;Laser head 30 is located in sliding piece 24, to follow sliding piece 24 sliding.

[0046] The utility model discloses a technical scheme, the transmission belt 233 of drive device 20 is equipped with tooth surface part 2332 and non tooth surface part 2331, tooth surface part 2332 is around and is equipped with driving wheel 231, make the transmission precision of belt drive structure, transmission efficiency is higher, on the other hand, non tooth surface part 2331 is around and is equipped with driven wheel 232, avoided the problem that the transmission belt 233 tension is not stable with the meshing of the tooth and driven wheel 232, and further produced the vibration, like this can effectively reduce transmission belt 233 vibration, thereby improve transmission precision and processing accuracy.

[0047] In some embodiments, the laser processing device 100 comprises an X-axis drive device and a Y-axis drive device, the laser head 30 can be arranged on the X-axis drive device, the X-axis drive device can be arranged on the Y-axis drive device, that is, the laser head 30 is indirectly arranged on the Y-axis drive device. The drive device 20 provided by the present application can be an X-axis drive device, or a Y-axis drive device, or both the X-axis drive device and the Y-axis drive device use the drive device 20 provided by the present application. It can be understood that the laser head 30 can be directly arranged on the sliding member 24, or indirectly arranged on the sliding member 24 through other drive devices.

[0048] The above-mentioned driving member 22 can be a motor 221, or a combination of the motor 221 and the transmission structure. The drive device 20 can be provided with one for driving the laser head 30 to move horizontally or vertically, or two for driving the laser head 30 to move horizontally and vertically respectively. Specifically, the horizontal drive device can be connected to the sliding member of the vertical drive device, and the laser head 30 is directly connected to the sliding member of the horizontal and vertical drive device, thereby indirectly connected to the sliding member of the vertical drive device.

[0049] Generally, the driving wheel 231 and the driven wheel 232 are synchronous wheels, and of course, the driven wheel 232 can also be a friction wheel, and the laser head 30 can be used for cutting or engraving; the transmission belt can be an open loop transmission belt or a closed loop transmission belt, and the non-tooth surface part 2331 of the transmission belt 233 can be a plane, and correspondingly, the driven wheel 232 is a light wheel. It can also be provided that the belt body is in the shape of a V-shaped surface, a W-shaped surface and the like, so that the non-tooth surface part 2331 can slide relative to the driven wheel 232 in the extension direction, and generally, the shape of the wheel surface of the driven wheel 232 is matched with the non-tooth surface part 2331, so that the mechanical properties are good, and for the V-shaped surface and the W-shaped surface of the transmission belt 233, the non-tooth surface part 2331 can also be prevented from being dislocated in the width direction and the driven wheel 232. Preferably, during the movement of the transmission belt, the tooth surface part 2332 is always arranged around the driving wheel 231, and the non-tooth surface part 2331 is always arranged around the driven wheel 232, so as to ensure the stability of transmission. There are various ways for the sliding member 24 to be fixedly connected with the tooth surface part 2332 of the transmission belt 233, for example, the sliding member 24 is fixed to the transmission belt 233 through a steel buckle structure, a press-fit structure or a screw, and the sliding member 24 can be fixed to the non-tooth surface part 2331 or the tooth surface part 2332 of the transmission belt 233, and preferably, in some embodiments of the utility model, the sliding member 24 is fixedly connected with the tooth surface part 2332, so that the connection stability can be increased by means of the tooth structure of the tooth surface part 2332. The specific conditions are set, which are not limited here.

[0050] In some embodiments of the utility model, the driving member 22 comprises a motor 221 and an encoder 222, the encoder 222 is in transmission connection with the output shaft 2212 of the motor 221 and is located on the side opposite to the guide rail seat 21 of the motor 221. In this way, the encoder 222 is integrated between the motor 221 and the guide rail seat 21, which not only can improve the compactness of the whole, but also is beneficial to realize the real-time reading of the shaft rotation angle of the motor 221, so as to accurately detect the moving distance of the sliding member 24.

[0051] In the above scheme, generally, the driving device 20 further comprises a control module, the driving member 22 comprises a motor 221 and an encoder 222, the encoder 222 is installed between the motor 221 and the guide rail seat 21, the encoder 222 is electrically connected with the control module, the encoder 222 is used for detecting the rotation angle of the output shaft 2212 of the motor 221 and generating a detection signal, the control module is electrically connected with the motor 221, and the control module is used for receiving the detection signal and sending a control signal to the motor 221.

[0052] Through the above scheme, the motor 221 can be closed-loop controlled, so as to accurately control the movement of the motor 221, and ensure the accuracy and repeatability of laser processing. Of course, the control module can also be integrated with other components of the laser processing device and connected with the encoder 222 and the motor 221, which is not limited herein.

[0053] The encoder 222 can be an optical encoder 222 or a magnetic induction encoder 222. In some embodiments of the present application, the motor 221 includes a body 2211 and an output shaft 2212, the body 2211 and the output shaft 2212 are connected, and the encoder 222 includes a code disc 2221 and a detection sensor 2222. The driving wheel 231 is fixed to the output shaft 2212. The code disc 2221 is sleeved on the output shaft 2212 of the motor 221, and the detection sensor 2222 is installed on one end of the body 2211 facing the rail seat 21 and can sense the code disc 2221, and is used for detecting the physical state change of the code disc 2221. The control module calculates the rotation angle of the code disc 2221 according to the state change signal of the code disc 2221, and further calculates the movement distance of the sliding part 24. Specifically, for example, the detection sensor 2222 is an optical sensor, and the code disc 2221 is provided with a scale line for the optical sensor to detect, or the sensor is a magnetic induction sensor, and the code disc 2221 is partially provided with magnetism, and the magnetic field around the code disc 2221 changes when the code disc 2221 rotates, so that the magnetic induction sensor can be sensed. The code disc 2221 can be provided in a split structure with the driving wheel 231, or can be provided in an integrated structure and fixed to the output shaft 2212 together. Through the above scheme, the encoder 222 includes two components of the code disc 2221 and the detection sensor 2222, and is integrated in the motor 221, so that the integration degree is higher.

[0054] In order to facilitate the assembly of the encoder 222, in some embodiments of the present application, the code disc 2221 is located between the driving wheel 231 and the rail seat 21. In this way, the code disc 2221 is located outside the driving wheel 231 during assembly, which facilitates the alignment with the detection sensor 2222.

[0055] In some embodiments of the present application, the detection sensor 2222 has a detection groove 2223, and the edge of the code disc 2221 is located in the detection groove 2223. In this way, without limiting the rotation of the code disc 2221, the distance between the detection sensor 2222 and the code disc 2221 is smaller, which is conducive to improving the detection accuracy, and the structure is more compact.

[0056] In some embodiments of the utility model, the machine body 2211 includes the casing 2213 and the assembly seat 2214, the assembly seat 2214 is connected with the output shaft 2212 on the same side of the casing 2213, the assembly seat 2214 is fixed on the guide rail seat 21, the assembly seat 2214 has the avoiding space 2215 and the avoiding hole communicated with the avoiding space 2215, the avoiding space 2215 is through the assembly seat 2214 along the extension direction of the output shaft 2212, the driving wheel 231 and the output shaft 2212 are located in the avoiding space 2215, the detection sensor 2222 is installed on the wall surface of the avoiding space 2215, and the transmission belt 233 is arranged in the avoiding hole. The external structure of the encoder 222 adopts the assembly seat 2214, which can be directly sleeved on the output shaft 2212 during assembly, and is fixed by screw connection with the casing 2213, the guide rail seat 21 and the three, which is high in assembly convenience and good in stability; the casing 2213 of the motor 221 and the guide rail seat 21 are formed on the two sides of the encoder 222 to form protection, further improving the structural stability.

[0057] In some embodiments of the utility model, the output shaft 2212 of the motor 221 is rotatably connected with the guide rail seat 21, so that the output shaft 2212 can effectively resist the torque generated on the output shaft 2212 when the transmission belt 233 is tensioned, and the stability is higher.

[0058] The sliding connection of the sliding part 24 and the guide rail seat 21 can be achieved in various ways, for example, a sliding groove is formed on one side of the guide rail seat 21 along the first direction, and the sliding part 24 is partially slidably connected in the sliding groove. Preferably, in some embodiments of the utility model, the guide rail seat 21 includes a plate body 211 and two rail bodies 212, the driving part 22 is installed on the plate body 211, the two rail bodies 212 are connected to one side of the plate body 211 in the second direction and are arranged along the first direction, the two rail bodies 212 are oppositely arranged along the third direction, the sliding part 24 is slidably connected with the two rail bodies 212, and the third direction, the second direction and the first direction are perpendicular to each other.

[0059] The plate body 211 and the rail body 212 can be connected by a screwing part, and preferably, in some embodiments of the utility model, the two rail bodies 212 are integrally formed with the plate body 211. In this way, the structural strength is higher, the number of parts is fewer, and the assembly process is simplified.

[0060] In order to further improve the sliding stability of the sliding part 24, in some embodiments of the utility model, the cross section of the two rail bodies 212 is V-shaped or arc-shaped.

[0061] In some embodiments of the utility model, sliding piece 24 includes the body 241 and a plurality of pulleys 242, a plurality of pulleys 242 are connected to one side of body 241, transmission belt 233 and a plurality of pulleys 242 are located on the same side of body 241, a plurality of pulleys 242 are located on both sides of transmission belt 233 in the third direction, and are all in sliding fit with rail body 212. In this way, pulley 242 is in contact with rail body 212, and sliding of sliding piece 24 relative to guide rail seat 21 is realized by rolling of pulley 242, friction is small, sliding efficiency is high, wear of sliding piece 24 and rail body 212 is small, and service life is prolonged.

[0062] In some embodiments of the utility model, pulley 242 includes metal axle 2421 and plastic wheel body 2422, metal axle 2421 is rotatably connected to body 241, plastic wheel body 2422 is sleeved on the outer periphery of metal axle 2421 and is in sliding fit with the corresponding rail body 212. In this way, the axle is made of metal material, has high strength and can bear large load, the axle can be made of aluminum alloy, stainless steel or the like, and the axle is generally made of the same material as body 241 and is integrally connected. In addition, plastic wheel body 2422 is used as the wheel surface in contact with the guide rail in the present scheme, plastic wheel body 2422 has high toughness, high wear resistance, self-lubricating property and high sliding smoothness, which helps to reduce the friction and wear between pulley 242 and the guide rail, thereby reducing energy consumption and prolonging the service life of the equipment.

[0063] The connection mode of plastic wheel body 2422 and metal axle 2421 can be various, preferably, in some embodiments of the utility model, plastic wheel body 2422 is injection molded on metal axle 2421. In this way, the connection stability is high. Of course, interference fit, spline connection, sleeve bonding and the like can also be used, which are not limited herein.

[0064] In some embodiments of the utility model, plastic wheel body 2422 is a V-shaped wheel surface to match V-shaped rail body 212. In this way, the guide rail can effectively limit the movement of plastic wheel body 2422 along the axial direction, which helps to improve the accuracy of the whole system.

[0065] In some embodiments of the utility model, one side of guide rail seat 21 is provided with sliding space 213, and at least part of sliding piece 24 and belt transmission assembly 23 are located in sliding space 213; drive device 20 further includes cover plate 25, which is connected to guide rail seat 21 and covers sliding space 213. Cover plate 25 can be connected to guide rail seat 21 by clamping, welding, screwing and the like. This is not limited herein. In this way, sliding piece 24 is accommodated in sliding space 213, the exposed part is used to connect external structure, which can effectively protect the internal components from dust, impurities and other external factors, thereby prolonging the service life of the equipment.

[0066] In some embodiments of the utility model, part of cover plate 25 and guide rail seat 21 are arranged at intervals in the second direction, part of sliding piece 24 is arranged between cover plate 25 and guide rail seat 21, and sliding piece 24 extends at least one end of cover plate 25 in the third direction to connect laser head 30, and the third direction, the second direction and the first direction are perpendicular to each other. In this way, cover plate 25 can be installed in the second direction of guide rail seat 21, which is convenient to assemble and has high structural stability.

[0067] In some embodiments of the utility model, laser processing equipment 100 further includes a base 10 and a processing device, and guide rail seat 21 is installed on base 10, and the processing device is connected to sliding piece 24 to move under the driving of sliding piece 24. In some embodiments of the utility model, base 10 includes a base and a protective cover, and guide rail seat 21 is connected to the base.

[0068] Driving piece 22 is used to drive the forward rotation and reverse rotation of driving wheel 231, so as to drive sliding piece 24 to reciprocate in the first direction, and in this process, driving wheel 231 always cooperates with tooth surface part 2332, and driven wheel 232 always cooperates with non-tooth surface part 2331, in order to ensure that the reciprocating limit distance of sliding piece 24 can be maximized, the length ratio of tooth surface part 2332 and non-tooth surface part 2331 in the extension direction of transmission belt 233 can be set, and in some embodiments of the utility model, the length ratio of tooth surface part 2332 and non-tooth surface part 2331 in the extension direction of transmission belt 233 is greater than or equal to 0.9 and less than or equal to 1.1. Specifically, it can be 0.9, 0.95, 1, 1.05, 1.1 and the like, so that the length ratio of the two is kept in a close range, and the movement distance of sliding piece 24 is avoided to be limited by transmission belt 233.

[0069] The specific structure of transmission belt 233 is various, and in some embodiments of the utility model, transmission belt 233 includes a tooth belt and a flat belt, both ends of the tooth belt are connected to both ends of the flat belt through mechanical joints one by one, the tooth belt has tooth surface part 2332, and the flat belt has non-tooth surface part 2331. In this way, one of the tooth belt and the flat belt can be repaired when damaged, reducing maintenance cost.

[0070] Further, when driving piece 22 drives transmission belt 233 to reciprocate to the limit position through driving wheel 231, the mechanical joints are spaced from driving wheel 231 and driven wheel 232, so that vibration caused by the contact between the mechanical joints and driving wheel 231 or driven wheel 232 can be avoided.

[0071] In some embodiments of the utility model, transmission belt 233 is of an integral structure. The integral transmission belt 233 has more uniform stress distribution when transmitting, higher stability and reliability, and longer service life.

[0072] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A laser processing apparatus characterized by comprising: The drive device and the laser head are included; The drive device includes: A guide rail seat extending along a first direction; A driving member; A belt drive assembly including a driving wheel, a driven wheel and a transmission belt, the driving wheel being in transmission connection with the driving member, the driven wheel being arranged along the first direction and spaced apart from the driving wheel, the inner side of the transmission belt including a tooth surface portion and a non-tooth surface portion, the tooth surface portion being arranged around the driving wheel, and the non-tooth surface portion being arranged around the driven wheel; and A sliding member slidingly installed on the guide rail seat and fixedly connected with the transmission belt, the laser head being arranged on the sliding member to slide with the sliding member.

2. The laser processing apparatus according to claim 1, wherein The driving member includes a motor and an encoder, the encoder being in transmission connection with the output shaft of the motor and being located on the side opposite to the guide rail seat of the motor.

3. The laser processing apparatus according to claim 2, wherein The motor includes a body and an output shaft, the body and the output shaft being connected, and the encoder includes a code disc and a detection sensor; The code disc is sleeved on the output shaft of the motor, and the detection sensor is installed on the end of the body facing the guide rail seat and can sense the code disc to detect the physical state change of the code disc.

4. The laser processing apparatus according to claim 3, wherein The driving wheel is fixed on the output shaft; The code disc is located between the driving wheel and the guide rail seat; and / or The detection sensor has a detection groove, and the edge of the code disc is located in the detection groove.

5. The laser processing apparatus according to claim 3, wherein The body includes a shell and an assembly seat, the assembly seat and the output shaft being connected on the same side of the shell, the assembly seat being fixed on the guide rail seat, the assembly seat having an avoiding space and an avoiding hole communicating with the avoiding space, the avoiding space penetrating through the assembly seat along the extension direction of the output shaft, the driving wheel and the output shaft being located in the avoiding space, the detection sensor being installed on the wall surface of the avoiding space, and the transmission belt being sleeved in the avoiding hole.

6. The laser processing apparatus according to any one of claims 1 to 5, wherein The guide rail seat includes a plate body and two rail bodies, the driving member being installed on the plate body, the two rail bodies being connected on one side of the plate body in a second direction and extending along the first direction, the two rail bodies being oppositely arranged along a third direction, the sliding member being in sliding cooperation with the two rail bodies, and the third direction, the second direction and the first direction being perpendicular to each other.

7. The laser processing apparatus according to claim 6, wherein The two rail bodies are integrally formed with the plate body; and / or The cross sections of the two rail bodies are in V shape or arc shape.

8. The laser processing apparatus according to claim 6, wherein The sliding member includes a body and a plurality of pulleys, the plurality of pulleys being connected on one side of the body, the transmission belt and the plurality of pulleys being located on the same side of the body, the plurality of pulleys being located on both sides of the transmission belt in the third direction and being in sliding cooperation with the rail bodies.

9. The laser processing apparatus according to claim 8, wherein The pulley includes a metal shaft and a plastic wheel body, the metal shaft being rotationally connected with the body, and the plastic wheel body being sleeved on the outer periphery of the metal shaft and being in sliding cooperation with the corresponding rail body.

10. The laser processing apparatus according to any one of claims 1 to 5, wherein One side of the guide rail seat is provided with a sliding space, and at least part of the sliding member and the belt drive assembly are located in the sliding space; The drive device further includes a cover plate connected with the guide rail seat and covering the sliding space.

11. The laser processing apparatus according to claim 10, wherein Part of the cover plates and the rail seats are arranged in the second direction, part of the sliding members are arranged between the cover plates and the rail seats, the sliding members extend at least one end of the cover plates in the third direction to connect the laser heads, the third direction, the second direction and the first direction are perpendicular to each other.

12. The laser processing apparatus according to any one of claims 1 to 5, wherein The length ratio of the tooth surface part to the non-tooth surface part in the extension direction of the transmission belt is greater than or equal to 0.9 and less than or equal to 1.1; And / or, the driven wheel is a light wheel.

13. The laser processing apparatus according to any one of claims 1 to 5, wherein During the movement of the transmission belt, the tooth surface part is always arranged around the driving wheel, and the non-tooth surface part is always arranged around the driven wheel; and / or, The sliding member is fixedly connected with the tooth surface part of the transmission belt.

14. The laser processing apparatus according to any one of claims 1 to 5, wherein The tooth surface part is a plane, and the wheel surface of the driven wheel is a circular surface. Or, the tooth surface part is a V-shaped surface, and the wheel surface of the driven wheel is a V-shaped surface.

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