Cooling gas self-adjusting laser cutting machine

Abstract

The utility model discloses a cooling gas self-adjusting laser cutting machine. The cooling gas self-adjusting laser cutting machine comprises a cutting mechanism, a temperature sensing assembly, a cooling gas assembly and a controller. The cutting mechanism comprises a mounting plate and a cutting head; the cutting head is mounted on the mounting plate; the temperature sensing assembly is mounted on the mounting plate, and one end of the temperature sensing assembly abuts against the cutting head; the cooling air assembly comprises a cooling air pipe and a proportional valve, the proportional valve is used for controlling the air pressure output of the cooling air pipe, and the air outlet end of the cooling air pipe is close to and faces the cutting head; the controller is in communication connection with the temperature sensing assembly and the proportional valve. The cooling gas self-adjusting laser cutting machine has the advantages that cooling gas is convenient to adjust, the automation degree is high, and the cutting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a cooling air self-regulating laser cutting machine. Background Art

[0002] Laser cutting machines have been widely used in various industrial sectors, replacing traditional cutting machines. It has the advantages of high power, high precision, high speed, and can cut most metal materials, solving many unsolvable problems in industrial production.

[0003] When cutting plates, due to the high power, cooling air is used to assist cutting. The function of cooling air is to reduce the temperature of the nozzle, thereby improving production efficiency and quality. However, the air pressure of the cooling air needs to be adjusted manually. If the air pressure is too low, the nozzle will easily become hot, resulting in unstable cutting. If the air pressure is too high, it will easily mix the air, resulting in poor cutting. These are very time-consuming and affect production efficiency.

[0004] In view of this, it is necessary to provide a new cooling gas self-regulating laser cutting machine to solve or at least alleviate the above technical defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a cooling air self-regulating laser cutting machine, aiming to solve the technical problem in the prior art that the cooling air is inconvenient to regulate and affects the production efficiency.

[0006] To achieve the above object, the utility model provides a cooling air self-regulating laser cutting machine, comprising:

[0007] A cutting mechanism, comprising a mounting plate and a cutting head, wherein the cutting head is mounted on the mounting plate;

[0008] A temperature sensing assembly is mounted on the mounting plate, and one end of the temperature sensing assembly abuts against the cutting head;

[0009] A cooling air component, comprising a cooling air pipe and a proportional valve, wherein the proportional valve is used to control the air pressure output of the cooling air pipe, and an air outlet end of the cooling air pipe is arranged close to and toward the cutting head;

[0010] A controller is communicatively connected with the temperature sensing assembly and the proportional valve respectively.

[0011] In one embodiment, the temperature sensing assembly includes a temperature sensor and a conductor, the temperature sensor is spaced apart from the cutting head, one end of the conductor is connected to the temperature sensor, and the other end of the conductor abuts against the cutting head.

[0012] In one embodiment, the conductor is an iron sheet.

[0013] In one embodiment, the temperature sensor includes a shell and a sensing element arranged in the shell, the shell is connected to the mounting plate, the shell is formed with a slot, one end of the iron sheet away from the cutting head is embedded in the slot, the detection probe of the sensing element is connected to the iron sheet, and the sensing element is electrically connected to the controller.

[0014] In one embodiment, the proportional valve and the controller are both arranged on the mounting plate, and the proportional valve and the controller are arranged at intervals.

[0015] In one embodiment, the temperature sensing component converts the temperature into an electrical signal and outputs it to the controller. The controller generates a voltage signal based on the electrical signal and transmits it to the proportional valve. The proportional valve controls the size of the air pressure output of the cooling air pipe based on the size of the voltage signal.

[0016] In one embodiment, the cooling gas self-regulating laser cutting machine also includes a machine platform, which includes a base and a beam, the beam is mounted above the base, the mounting plate is mounted on the beam, and the cutting head is arranged toward the base.

[0017] In one embodiment, the base is formed with a receiving cavity, and a workbench is mounted on the receiving cavity.

[0018] In one embodiment, the crossbeam is slidably connected to the base along a first direction, and the mounting plate is slidably connected to the crossbeam along a second direction.

[0019] In one embodiment, the mounting plate includes a sliding part and a lifting part, the sliding part is slidably connected to the beam, the lifting part is lifted and lowered with the sliding part, the cutting head and the temperature sensing assembly are installed on the lifting part, and the proportional valve and the controller are installed on the sliding part.

[0020] In the technical solution of the utility model, the temperature sensing component is used to detect the temperature of the cutting head in real time, and the controller receives the signal of the temperature sensing component and processes it, so as to control the proportional valve to adjust the outlet air pressure of the cooling air pipe. Specifically, the controller stores a temperature setting value. After receiving the temperature signal of the temperature sensing component, the controller compares the difference between the actual temperature and the setting value, and adjusts the proportional valve according to the difference value, so as to realize automatic adjustment of the outlet air pressure of the cooling air pipe according to the temperature feedback of the cutting head. When the temperature of the cutting head increases, the air pressure increases; when the temperature of the cutting head decreases, the air pressure decreases, and the air outlet stops when the temperature of the cutting head is too low. Compared with the traditional manual pressure adjustment, the utility model does not need to manually judge or adjust the air pressure. It can adjust the air pressure in time according to the temperature of the cutting head nozzle without manipulation, which is equivalent to automated software, avoiding poor or unstable cutting caused by inappropriate and time-consuming manual pressure adjustment, and improving efficiency; at the same time, by automatically adjusting the cooling air pressure, it is also convenient for the stability and quality of processing and production. In summary, the utility model has the advantages of convenient cooling air adjustment, high degree of automation and high cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation regulations or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a cooling air self-regulating laser cutting machine from one perspective according to an embodiment of the utility model;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the cooling air self-regulating laser cutting machine from another perspective according to an embodiment of the utility model;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a cutting mechanism, a temperature sensor component, a cooling gas component and a controller component according to an embodiment of the utility model.

[0025] Description of Figure Numbers:

[0026] Label name Label name 1 Cutting mechanism 21 Temperature Sensor 2 Temperature sensing components 22 conductor 4 Controller 31 Cooling air pipe 5 Machine 32 Proportional valve 11 Mounting Plate 51 Base 12 Cutting head 52 beam 111 Sliding part 511 Accommodation cavity 112 Lifting Department 512 Workbench

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described implementation methods are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two groups, such as two groups, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two groups of components or the interaction relationship between two groups of components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Please refer to Figure 1 to Figure 3The utility model provides a cooling air self-regulating laser cutting machine, comprising a cutting mechanism 1, a temperature sensing component 2, a cooling air component and a controller 4; the cutting mechanism 1 comprises a mounting plate 11 and a cutting head 12, and the cutting head 12 is mounted on the mounting plate 11; the temperature sensing component 2 is mounted on the mounting plate 11, and one end of the temperature sensing component 2 is in contact with the cutting head 12; the cooling air component comprises a cooling air pipe 31 and a proportional valve 32, and the proportional valve 32 is used to control the air pressure output size of the cooling air pipe 31, and the air outlet end of the cooling air pipe 31 is arranged close to and toward the cutting head 12; the controller 4 is respectively communicated with the temperature sensing component 2 and the proportional valve 32.

[0034] In the above embodiment, the temperature sensor assembly 2 is used to detect the temperature of the cutting head 12 in real time, and the controller 4 receives and processes the signal of the temperature sensor assembly 2, thereby controlling the proportional valve 32 to adjust the outlet air pressure of the cooling air pipe 31. Specifically, the controller 4 stores a temperature setting value. After receiving the temperature signal of the temperature sensor assembly 2, the controller 4 compares the difference between the actual temperature and the setting value, thereby adjusting the proportional valve 32 according to the difference value, so as to realize automatic adjustment of the outlet air pressure of the cooling air pipe 31 according to the temperature feedback of the cutting head 12. When the temperature of the cutting head 12 increases, the air pressure increases; when the temperature of the cutting head 12 decreases, the air pressure decreases, and the air outlet is stopped when the temperature of the cutting head 12 is too low. Compared with the traditional manual pressure adjustment, this embodiment does not need to manually judge or adjust the air pressure. It can adjust the air pressure in time according to the temperature of the nozzle of the cutting head 12, without manipulation, which is equivalent to automated software, avoiding poor or unstable cutting caused by inappropriate and time-consuming manual pressure adjustment, and improving efficiency; at the same time, by automatically adjusting the cooling air pressure, it is also convenient for the stability and quality of processing and production. In summary, this embodiment has the advantages of convenient cooling air adjustment, high degree of automation and high cutting efficiency.

[0035] Specifically, the temperature sensing component 2 converts the temperature into an electrical signal and outputs it to the controller 4. The controller 4 generates a voltage signal based on the electrical signal and transmits it to the proportional valve 32. The proportional valve 32 controls the size of the air pressure output of the cooling air pipe 31 based on the size of the voltage signal. After the sensor senses the temperature, it converts the temperature into an electrical signal and outputs it to the controller 4. The controller 4 generates a voltage signal based on the difference between the temperature value measured by the sensor and the set value and transmits it to the proportional valve 32. After receiving the signal, the proportional valve 32 starts to control the air outlet. The proportional valve 32 controls the size of the air pressure output based on the size of the voltage signal transmitted from the controller 4.

[0036] Reference Figure 3In one embodiment, the temperature sensing assembly 2 includes a temperature sensor 21 and a conductor 22. The temperature sensor 21 is spaced apart from the cutting head 12. One end of the conductor 22 is connected to the temperature sensor 21, and the other end of the conductor 22 is in contact with the cutting head 12. By using the conductor 22, the installation position of the temperature sensor 21 can be adjusted, which is more convenient for setting the temperature sensor 21. The conductor 22 is used to conduct the heat of the cutting head 12 to the temperature sensor 21, so that the temperature sensor 21 can indirectly measure the temperature of the cutting head 12.

[0037] Specifically, the conductor 22 is an iron sheet. The iron sheet has good thermal conductivity. In addition, the conductor 22 can also be other thermal conductive materials, such as silver, copper, aluminum, etc., for sensing the nozzle temperature.

[0038] In one embodiment, the temperature sensor 21 includes a housing and a sensor disposed in the housing, the housing is connected to the mounting plate 11, a slot is formed in the housing, one end of the iron sheet away from the cutting head 12 is embedded in the slot, the detection probe of the sensor is connected to the iron sheet, and the sensor is electrically connected to the controller 4. The iron sheet is embedded in the slot for fixation, and the detection probe is connected to this end to receive the temperature of the cutting head 12 conducted by the iron sheet. The sensor converts the temperature into an electrical signal output, which is then provided to the controller 4 for processing. The controller 4 generates a voltage signal based on the difference between the temperature value measured by the sensor and the set value and then transmits it to the proportional valve 32. After receiving the signal, the proportional valve 32 controls the gas outlet and adjusts the gas pressure.

[0039] Reference Figure 3 In one embodiment, the proportional valve 32 and the controller 4 are both arranged on the mounting plate 11, and the proportional valve 32 and the controller 4 are arranged at intervals. By centrally installing the proportional valve 32 and the controller 4 together with the temperature sensor 21 and the cooling air pipe 31 on the mounting plate 11, the complexity of the electrical connection between them is reduced, and the setting is simpler.

[0040] Reference Figure 1 to Figure 3 In one embodiment, the cooling gas self-regulating laser cutting machine further comprises a machine platform 5, the machine platform 5 comprises a base 51 and a beam 52, the beam 52 is erected above the base 51, the mounting plate 11 is mounted on the beam 52, and the cutting head 12 is arranged toward the base 51. The base 51 is used to provide support and place the workpiece to be cut, and provide a working environment and cutting space for cutting.

[0041] Specifically, the base 51 is formed with a receiving cavity 511, and a workbench 512 is mounted on the receiving cavity 511. The receiving cavity 511 can collect waste generated by cutting and can also provide sufficient avoidance space for cutting. The workbench 512 is formed with a gap, and the workbench 512 is provided with a plurality of protrusions protruding upwards for abutting against the workpiece. The relatively concave position and the gap can prevent the laser from directly contacting the workbench 512 during cutting.

[0042] More specifically, the crossbeam 52 is slidably connected to the base 51 along a first direction, and the mounting plate 11 is slidably connected to the crossbeam 52 along a second direction. Figure 1 The front-to-back direction in the second direction is Figure 1 In the left and right directions, the position of the cutting head 12 can be adjusted by moving in the front-back direction and the left-right direction to facilitate the cutting operation. In addition, the cutting head 12 can also be lifted and moved. In one embodiment, the mounting plate 11 includes a sliding portion 111 and a lifting portion 112. The sliding portion 111 is slidably connected to the crossbeam 52, and the lifting portion 112 is lifted and connected to the sliding portion 111. The cutting head 12 and the temperature sensor assembly 2 are installed on the lifting portion 112, and the proportional valve 32 and the controller 4 are installed on the sliding portion 111 to realize the three-coordinate movement cutting of the cutting head 12.

[0043] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling air self-regulating laser cutting machine, characterized in that: include: A cutting mechanism, comprising a mounting plate and a cutting head, wherein the cutting head is mounted on the mounting plate; A temperature sensing assembly is mounted on the mounting plate, and one end of the temperature sensing assembly abuts against the cutting head; A cooling air component, comprising a cooling air pipe and a proportional valve, wherein the proportional valve is used to control the air pressure output of the cooling air pipe, and an air outlet end of the cooling air pipe is arranged close to and toward the cutting head; A controller is communicatively connected with the temperature sensing assembly and the proportional valve respectively.

2. The cooling gas self-regulating laser cutting machine according to claim 1, characterized in that: The temperature sensing assembly comprises a temperature sensor and a conductor. The temperature sensor is spaced apart from the cutting head. One end of the conductor is connected to the temperature sensor, and the other end of the conductor abuts against the cutting head.

3. The cooling gas self-regulating laser cutting machine according to claim 2, characterized in that: The conductor is an iron sheet.

4. The cooling gas self-regulating laser cutting machine according to claim 3, characterized in that: The temperature sensor includes a shell and a sensor element arranged in the shell, the shell is connected to the mounting plate, the shell is formed with a slot, one end of the iron sheet away from the cutting head is embedded in the slot, the detection probe of the sensor element is connected to the iron sheet, and the sensor element is electrically connected to the controller.

5. The cooling gas self-regulating laser cutting machine according to claim 1, characterized in that: The proportional valve and the controller are both arranged on the mounting plate, and the proportional valve and the controller are arranged at intervals.

6. The cooling gas self-regulating laser cutting machine according to any one of claims 1 to 5, characterized in that: The temperature sensing component converts the temperature into an electrical signal and outputs it to the controller. The controller generates a voltage signal according to the electrical signal and transmits it to the proportional valve. The proportional valve controls the size of the air pressure output of the cooling air pipe according to the size of the voltage signal.

7. The cooling gas self-regulating laser cutting machine according to any one of claims 1 to 5, characterized in that: The cooling gas self-regulating laser cutting machine also includes a machine platform, which includes a base and a beam. The beam is mounted above the base, the mounting plate is mounted on the beam, and the cutting head is arranged toward the base.

8. The cooling gas self-regulating laser cutting machine according to claim 7, characterized in that: The base is formed with a receiving cavity, and a workbench is mounted on the receiving cavity.

9. The cooling gas self-regulating laser cutting machine according to claim 7, characterized in that: The crossbeam is slidably connected to the base along a first direction, and the mounting plate is slidably connected to the crossbeam along a second direction.

10. The cooling gas self-regulating laser cutting machine according to claim 9, characterized in that: The mounting plate includes a sliding part and a lifting part, the sliding part is slidably connected to the beam, the lifting part is lifted and lowered to the sliding part, the cutting head and the temperature sensor assembly are installed on the lifting part, and the proportional valve and the controller are installed on the sliding part.

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