High-precision laser welding equipment

Abstract

The utility model discloses high-precision laser welding equipment, which relates to the field of laser welding, solves the problem that the quality of a galvanometer motor and a laser gun head is affected due to the fact that the existing long-distance long-time wire transmission analog signal is easily interfered and the transmission effect is poor, and adopts the following scheme that the high-precision laser welding equipment comprises the laser gun head and a laser joint assembled on the laser gun head, a communication control system and a motor driving system are integrated in the laser gun head, a transmission analog signal is communicated between the communication control system and the motor driving system through a wire, and the equipment host provides a power supply for the laser head and transmits a digital signal through the wire; according to the high-precision anti-loosening laser welding equipment, the communication control system and the motor driving system are integrated on the laser gun head, and the equipment host can directly send a digital signal instruction to the communication control system; the communication control system analyzes the instruction and then sends an analog signal to control the motor driving system to send an analog signal to drive the galvanometer motor to directly work.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, and particularly relates to a high-precision laser welding device. Background Technique

[0002] Handheld fiber laser welding is a new generation of laser welding equipment, belonging to non-contact welding. No pressure is required during the operation process. Its working principle is to directly irradiate a laser beam with high energy intensity on the material surface. Through the interaction between the laser and the material, the material is melted inside and then cooled and crystallized to form a weld seam;

[0003] After retrieval, in the application document with the patent application number 202322302549.3, a handheld anti-slip laser welding head is disclosed. Its technical solution includes a shell and an anti-detachment device. One end of the bottom of the shell is provided with a first handle, the front end of the shell is provided with a second handle, a protective sleeve is sleeved outside the first handle, a plurality of concave parts are arranged on one side of the anti-slip sleeve, an interface is arranged at the bottom of the first handle, and an anti-detachment device is installed at the bottom end of the first handle away from the concave part. In the utility model, an anti-slip sleeve preferably made of rubber material is wrapped outside the first handle. The anti-slip sleeve increases the friction coefficient between the hand and the first handle when holding, making the grip more stable and avoiding slipping to affect welding. Moreover, a plurality of concave parts suitable for finger grasping are arranged on the inner side of the anti-slip sleeve, making the grip more comfortable. At the same time, the first handle is isolated from hand sweat, playing an anti-corrosion and protective role;

[0004] The above application document improves the use effect through the setting of the anti-slip sleeve on the handheld part. However, the existing laser welding head adopts an external communication control method, that is, an analog signal between the communication control system and the motor is transmitted using a wire. However, during long-term operation, due to factors such as bending and stretching of the transmission wire, the shielding performance of the wire itself decreases, resulting in interference in the transmission of the analog signal, and further affecting the stability of the motor operation.

[0005] Therefore, we propose a high-precision laser welding device. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the utility model provides a high-precision laser welding device, which solves the problems that the long-distance and long-time wire transmission of analog signals is easily interfered, the transmission effect is poor, affecting the quality of the galvanometer motor and the laser gun head.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A high-precision laser welding device includes a laser gun head and its assembled laser connector. The communication control system and the motor drive system are integrated inside the laser gun head, and the communication control system is arranged below the motor drive system;

[0008] The communication control system includes a communication device, a controller, and a sensor. The motor drive system includes a controller, a detection sensor, and a power supply unit. A transmission analog signal is connected between the communication control system and the motor drive system through a wire. The equipment host provides power and transmits digital signals to the laser head through a wire, and the motor drive system is connected to the galvanometer motor through an analog signal.

[0009] Preferably, a first connector is provided at the tail end of the laser gun head, and a second connector adapted to the specification of the first connector is provided at the front end of the laser connector.

[0010] Preferably, a first communication and power supply line interface connected to the communication control system is provided in the first connector. A pipeline and a communication line are provided at the tail end of the laser connector, and a second communication and power supply line interface connected to the first communication and power supply line interface, the pipeline, and the communication line is provided in the second connector. Laser input and output interfaces with matching position specifications are also provided in the first and second connectors.

[0011] Preferably, a shielding gas inlet is provided on the first connector, and a shielding gas interface with a matching position and specification is provided in the second connector.

[0012] Preferably, a cooling medium inlet and a cooling medium outlet are provided on the first connector, and a first cooling medium interface and a second cooling medium interface respectively connected to the cooling medium inlet and the cooling medium outlet are provided in the second connector;

[0013] Among them, after flowing inside the laser connector, it flows out from the first cooling medium interface, flows into the laser gun head from the cooling medium inlet, then flows out from the cooling medium outlet, returns to the laser connector through the second cooling medium interface, and then returns to the host through the pipeline in the laser connector.

[0014] Preferably, four groups of fastening bolt slots are provided at the four corners of the first connector, and four groups of fastening bolts are provided at the corresponding positions on the second connector.

[0015] Preferably, the sensor in the communication control system includes a temperature sensor.

[0016] Among them, the communication control system can monitor the working state of the laser gun head through the integrated temperature sensor. When the upper lens is damaged, the laser can be effectively turned off.

[0017] The present utility model provides a high-precision laser welding device, which has the following beneficial effects:

[0018] This high-precision anti-loosening laser welding equipment, through the setting that a communication control system and a motor drive system are integrated on the laser gun head, the equipment host can directly send digital signal instructions to the communication control system. After the communication control system analyzes the instructions, it issues an analog signal to control the motor drive system to issue an analog signal to directly drive the galvanometer motor to work. Abandoning the setting of long-distance transmission of analog signals through wires can avoid the situation that the transmission effect of analog signals is affected due to signal interference and wire consumption loss, and solves the problem that the long-distance and long-time wire transmission of analog signals in the prior art is vulnerable to interference and has a poor transmission effect, which affects the quality of the galvanometer motor and the laser gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the side view of the laser gun head of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the laser gun head of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the laser connector of the present utility model.

[0023] In the figure: 1. Laser gun head; 11. First connector; 111. Laser input interface; 112. Protective gas inlet; 113. Cooling medium inlet; 114. Cooling medium outlet; 115. First communication and power supply line interface; 116. Fastening bolt groove; 12. Communication control system; 13. Motor drive system; 14. Galvanometer motor; 2. Laser connector; 21. Second connector; 211. Laser output interface; 212. Protective gas interface; 213. First cooling medium interface; 214. Second cooling medium interface; 215. Second communication and power supply line interface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, an embodiment of the present utility model provides a technical solution: a high-precision laser welding device, including a laser gun head 1 and its assembled laser connector 2. A communication control system 12 and a motor drive system 13 are integrated on the rear side of the laser gun head 1, and the communication control system 12 is arranged below the motor drive system 13; the communication control system 12 includes a communication device, a controller, and a sensor, and the motor drive system 13 includes a controller, a detection sensor, and a power supply unit. The communication control system 12 and the motor drive system 13 are connected by wires, and the motor drive system 13 is connected to a galvanometer motor 14 through an analog signal;

[0026] The sensor in the communication control system 12 includes a temperature sensor; among them, the communication control system 12 can monitor the working state of the laser gun head 1 by using the setting of the integrated temperature sensor. When the upper lens is damaged, the laser can be effectively turned off;

[0027] Among them, in this high-precision anti-loosening laser welding device, through the setting of integrating the communication control system 12 and the motor drive system 13 on the laser gun head 1, the device host can directly send digital signal instructions to the communication control system 12. After the communication control system 12 analyzes the instructions, it sends an analog signal to control the motor drive system 13 to send an analog signal to drive the galvanometer motor 14 to work directly. Abandoning the setting of long-distance transmission of analog signals by wires can avoid the situation that the transmission effect of analog signals is affected due to signal interference and wire consumption loss, and solves the problem that the long-distance and long-time wire transmission of analog signals in the prior art is vulnerable to interference and the transmission effect is poor, which affects the quality of the galvanometer motor 14 and the laser gun head 1.

[0028] Embodiment 2:

[0029] A first connector 11 is arranged at the tail end of the laser gun head 1, and a second connector 21 with a specification adapted to that of the first connector 11 is arranged at the front end of the laser connector 2.

[0030] A first communication and power supply line interface 115 connected to the communication control system 12 is arranged in the first connector 11. A pipeline and a communication line are arranged at the tail end of the laser connector 2, and a second communication and power supply line interface 215 connected to the first communication and power supply line interface 115, the pipeline, and the communication line is arranged in the second connector 21. Laser input interfaces 111 and laser output interfaces 211 with adapted position specifications are also arranged in the first connector 11 and the second connector 21.

[0031] A protective gas inlet 112 is arranged on the first connector 11, and a protective gas interface 212 with a position opposite and specification adapted to that of the protective gas inlet 112 is arranged in the second connector 21;

[0032] Among them, the cooling medium enters the laser connector 2 from the main machine through the pipeline in the laser connector 2. After flowing inside the laser connector 2, it flows out from the first cooling medium interface 213, flows into the laser gun head 1 from the cooling medium inlet 113, then flows out from the cooling medium outlet 114, returns to the laser connector 2 through the second cooling medium interface 214, and then returns to the main machine through the pipeline in the laser connector 2.

[0033] The first connector 11 is provided with a cooling medium inlet 113 and a cooling medium outlet 114, and the second connector 21 is provided with a first cooling medium interface 213 and a second cooling medium interface 214 that are respectively connected to the cooling medium inlet 113 and the cooling medium outlet 114.

[0034] Four groups of fastening bolt grooves 116 are provided at the four corners of the first connector 11, and four groups of fastening bolts are provided at the corresponding positions on the second connector 21.

[0035] The working principle and usage process of the present utility model: When the device needs to work, the laser gun head 1 and the laser connector 2 are assembled by using the connection between the first connector 11 and the second connector 21. By virtue of the integrated communication control system 12 and the motor drive system 13 in the laser gun head 1, the motor drive system 13 can be directly controlled by the communication control system 12 to output an analog signal to the galvanometer motor 14 to drive the laser gun head 1 to work, ensuring the working effect of the laser gun head 1.

[0036] The above shows and describes the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-precision laser welding device, including a laser gun head (1) and its assembled laser connector (2), characterized in that: A communication control system (12) and a motor drive system (13) are integrated on the rear side of the laser gun head (1), and the communication control system (12) is arranged below the motor drive system (13); The communication control system (12) includes a communication device, a controller and a sensor. The motor drive system (13) includes a controller, a detection sensor and a power supply unit. An analog signal is transmitted through a wire between the communication control system (12) and the motor drive system (13). The equipment host provides power and transmits digital signals to the laser head through a wire, and the motor drive system (13) is connected to the galvanometer motor (14) through an analog signal.

2. The high-precision laser welding device according to claim 1, characterized in that: A first connector (11) is arranged at the tail end of the laser gun head (1), and a second connector (21) with a specification adapted to that of the first connector (11) is arranged at the front end of the laser connector (2).

3. A high-precision laser welding device according to claim 2, characterized in that: A first communication and power supply line interface (115) communicating with the communication control system (12) is arranged in the first connector (11). A pipeline and a communication line are arranged at the tail end of the laser connector (2). A second communication and power supply line interface (215) connected to the first communication and power supply line interface (115), the pipeline and the communication line is arranged in the second connector (21). Laser input interfaces (111) and laser output interfaces (211) with adapted position specifications are also arranged in the first connector (11) and the second connector (21).

4. A high-precision laser welding device according to claim 3, wherein: A protective gas inlet (112) is arranged on the first connector (11), and a protective gas interface (212) with a position corresponding to and a specification adapted to that of the protective gas inlet (112) is arranged in the second connector (21).

5. A high-precision laser welding device according to claim 4, characterized in that: A cooling medium inlet (113) and a cooling medium outlet (114) are arranged on the first connector (11). A first cooling medium interface (213) and a second cooling medium interface (214) respectively communicating with the cooling medium inlet (113) and the cooling medium outlet (114) are arranged in the second connector (21). The cooling medium enters the laser connector (2) from the host through the pipeline in the laser connector (2), flows inside the laser connector (2), then flows out from the first cooling medium interface (213), flows into the laser gun head (1) through the cooling medium inlet (113), then flows out from the cooling medium outlet (114), returns to the laser connector (2) through the second cooling medium interface (214), and then returns to the host through the pipeline in the laser connector (2).

6. The high-precision laser welding device according to claim 5, wherein: Four groups of fastening bolt grooves (116) are arranged at the four corners of the first connector (11), and four groups of fastening bolts are arranged at the corresponding positions on the second connector (21).

7. A high-precision laser welding device according to claim 1, characterized in that: The sensor in the communication control system (12) includes a temperature sensor.

Images