Rod and tube laser grooving machine

Abstract

The utility model relates to a rod tube laser grooving machine which comprises a driving support, a laser structure and a driven support, a feeding mechanism is arranged on the driving support, the feeding mechanism is in transmission connection with a tube rod workpiece to be machined, the position of the laser structure is fixed, and the driving support and the driven support are located at the two ends of the laser structure respectively. The rod tube laser grooving machine is simple in structure, accurate in grooving size, better in flexibility and wider in application range, the depth of a groove can be controlled by controlling laser energy, the width of the groove can be controlled by controlling the diameter of a light spot, flexible transformation is achieved according to needs, and a cutter does not need to be replaced; as the energy of the laser is high, the metal is directly vaporized, and the cleanliness of the groove can be ensured; and multiple channels of laser are adopted, multiple channels of grooves can be machined in parallel, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of laser grooving, in particular to a rod tube laser grooving machine. Background Art

[0002] In the field of industrial production, it is often necessary to slot bars or pipes, but the current slotting technology is difficult to meet certain precision size requirements. Some slots on pipes or rods are not uniform in width, some slots are not uniform in depth, and some even cut the pipes. These slotting or cutting actions are often completed by modified lathes or special slotting and cutting machines. At present, this type of equipment has low slotting accuracy and productivity, and poor automation. Especially for long slots on pipes and rods, segmented slotting and butt slotting are used. The accuracy is difficult to guarantee and the production efficiency is also low, which is difficult to meet the needs of industrial production.

[0003] like Figure 1 As shown in the figure, in the existing YAG laser groove engraving machine, the continuous laser is controlled by an acousto-optic modulator to output a modulated laser with high peak power, and the on and off of the acousto-optic modulator is controlled by a signal from the main controller. After the output laser passes through the optical beam expander, it is refracted on the reflector and directed to the optical scanner. Then the scanning beam passes through the optical lens system and is focused on the high-speed rotating resistor to be engraved, engraving a spiral groove. The working principle of this laser is as follows Figure 1 However, the existing YAG laser groove engraving machine has the following disadvantages: the groove depth is shallow, which is not suitable for engraving wide and deep grooves; the design of laser scanning and optical knowledge to control the groove depth and width requires certain theoretical knowledge from the user, and is relatively complicated; it cannot engrave long grooves and grooves with many diameter changes, and can only engrave short spiral shallow grooves.

[0004] like Figure 2 As shown, the existing real-time control system of the resistor laser groove cutting machine has the following working principle: Figure 2 As shown: the operator inputs the initial value, expected value and light spot of the resistor blank into the single chip microcomputer, and the single chip microcomputer calculates the number of grooves, and then calculates the matching relationship and speed value of the single chip and according to the restriction conditions of the single chip and the single chip. The rotation and displacement of the resistor body are realized by circuit drive. When the precession of the resistor body reaches 3% of the entire precession stroke, the laser control circuit turns on the laser, and the laser beam is focused on the film layer on the surface of the resistor body through the lens, vaporizing it to form a groove. The existing resistor laser groove machine has the following disadvantages: it is expensive; the system operation is difficult to learn, involving a single chip microcomputer and complex circuits and acquisition input systems; and the scope of application is not large, and it is only suitable for grooves on resistors.

[0005] like Figure 3 As shown in the figure, the existing fully automatic slotting machine uses rods and tubes that do not rotate, and adopts the cutting method of a turning tool to imitate the method of a lathe to achieve slotting, such as Figure 3 The existing automatic slotting machines have the following disadvantages: complex structure and high cost; it is difficult to process thin-walled tubes and long tubes, and it is also difficult to process long tubes and rods with variable diameters; the tool cutting cooling method is generally water cooling, but water cooling cannot be used for special materials and special rods, and some specific grooves cannot be realized; the tool processing speed is slow and the production efficiency is low. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, the utility model provides a rod and tube laser grooving machine, which has high grooving accuracy and can improve productivity.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A rod and tube laser notching machine comprises an active support, a laser structure and a driven support. The active support is provided with a feeding mechanism which is drivingly connected to a tube and rod workpiece to be processed. The laser structure is fixed in position. The active support and the driven support are respectively located at two ends of the laser structure.

[0009] As a preferred technical solution, several support units are provided on the active support and the driven support. The support units include support frames and V-shaped frames. The support frames are arranged at equal intervals. The V-shaped frames are fixed on the support frames. The pipe, rod and workpiece are mounted on the V-shaped frames of multiple support units.

[0010] As a preferred technical solution, the feeding mechanism includes a motor, a screw and a transmission member, the motor is transmission-connected to the screw, the transmission member is mounted on the screw, and the transmission member is detachably fixedly connected to the pipe-rod workpiece.

[0011] As a preferred technical solution, the laser structure includes a laser groove engraving machine, a sensor, a detector and a PLC. The sensor and the detector are connected to the PLC through electrical signals, and the PLC is connected to the laser groove engraving machine.

[0012] As an optimal technical solution, the laser grooving machine includes a laser cutting head, a laser grooving auxiliary support block and a base. The laser cutting head is installed on the base, the sensor and the detector are installed on the laser cutting head, and the laser grooving auxiliary support block is fixed on the base and located under the laser cutting head.

[0013] As a preferred technical solution, there are two laser grooving auxiliary support blocks, and a horizontally arranged limiting tube is fixed on the laser grooving auxiliary support block, and the pipe-rod workpiece passes through the limiting tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The rod tube laser notching machine of the utility model has a simpler structure than the existing resistor notching machine, has a more precise notching size, better flexibility and a wider range of applications. Specifically, by using laser notching, the depth of the notch can be controlled by controlling the laser energy, and the width of the notch can be controlled by controlling the diameter of the light spot, which can be flexibly changed according to needs without changing the tool; due to the high energy of the laser, the metal is directly vaporized, and the cleanliness of the notch can be guaranteed; by using multiple lasers, multiple notches can be processed in parallel, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the groove engraving principle diagram of the existing YAG laser groove engraving machine;

[0017] Figure 2 It is the principle diagram of the existing resistance laser groove engraving machine;

[0018] Figure 3 It is a schematic diagram of the slotting working structure of an existing slotting machine;

[0019] Figure 4 It is a structural schematic diagram of a rod tube laser groove engraving machine of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the laser structure in the rod tube laser groove engraving machine of the utility model;

[0021] Figure 6 The utility model is a schematic diagram of a rod tube laser groove engraving machine.

[0022] In the figure: 1. Active bracket; 2. Laser structure; 21. Laser cutting head; 22. Laser groove auxiliary support block; 23. Base; 3. Driven bracket. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with specific implementation methods:

[0024] like Figure 4 As shown, a rod and tube laser grooving machine comprises an active support 1, a laser structure 2 and a driven support 3. The active support 1 is provided with a feeding mechanism, which is transmission-connected to the tube and rod workpiece to be processed. The laser structure 2 is fixed in position, and the active support 1 and the driven support 3 are respectively located at two ends of the laser structure 2.

[0025] The active support 1 and the driven support 3 are both provided with a number of support units, which include support frames and V-shaped frames. The support frames are arranged at equal intervals, and the V-shaped frames are fixed on the support frames. The pipe and rod workpieces are mounted on the V-shaped frames of multiple support units. The driven support 3 mainly plays an auxiliary supporting role, ensuring the support of the rod or pipe after the laser groove is engraved, and also plays a supporting role when the rod and pipe are withdrawn after the laser groove is engraved.

[0026] The feeding mechanism includes a motor, a screw and a transmission member, the motor is connected to the screw, the transmission member is mounted on the screw, and the transmission member is detachably fixedly connected to the pipe and rod workpiece. The feeding mechanism is used to control the pipe and rod workpiece to perform linear motion.

[0027] like Figure 6 As shown, the laser structure 2 includes a laser groove cutting machine, a sensor, a detector and a PLC, the sensor and the detector are connected to the PLC through electrical signals, and the PLC is connected to the laser groove cutting machine. Specifically, the PLC of Mitsubishi is used in this embodiment, and the PLC is a programmable logic controller.

[0028] like Figure 5 As shown, the laser groove engraving machine includes a laser cutting head 21, a laser groove engraving auxiliary support block 22 and a base 23. The laser cutting head 21 is mounted on the base 23, and sensors and detectors are mounted on the laser cutting head 21. The laser groove engraving auxiliary support block 22 is fixed on the base 23 and is located below the laser cutting head 21. The distance between the laser cutting head 21 and the pipe and rod workpiece is converted into a signal by the sensor or detector and sent to the PLC. The pipe and rod workpiece is controlled to move to a specified position according to a known program or by on-site personnel based on the distance signal. Then, the required real-time energy and spot size signal of the laser are obtained based on the distance, the depth and width of the engraved groove, and then the signal is transmitted to the laser groove engraving machine. The depth of the groove is controlled by changing the energy of the laser, and the width of the groove is controlled by changing the size of the laser spot, thereby achieving precise groove engraving.

[0029] There are two laser groove auxiliary support blocks 22, and a horizontally arranged limit tube is fixed on the laser groove auxiliary support block 22, and the pipe rod workpiece passes through the limit tube. The limit tube and the laser groove auxiliary support block 22 can not only support the pipe rod workpiece, but also limit the moving direction of the pipe rod workpiece.

[0030] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A rod tube laser groove engraving machine, characterized in that: It includes an active support, a laser structure and a driven support. The active support is provided with a feeding mechanism, which is transmission-connected to the pipe, rod, and workpiece to be processed. The laser structure is fixed in position, and the active support and the driven support are respectively located at two ends of the laser structure.

2. The rod tube laser groove engraving machine according to claim 1, characterized in that: The active support and the driven support are both provided with a plurality of support units, wherein the support units include support frames and V-shaped frames, the support frames are arranged at equal intervals, the V-shaped frames are fixed on the support frames, and the pipe, rod, and workpiece are mounted on the V-shaped frames of a plurality of support units.

3. The rod and tube laser groove engraving machine according to claim 1, characterized in that: The feeding mechanism comprises a motor, a screw rod and a transmission member, wherein the motor is transmission-connected to the screw rod, the transmission member is mounted on the screw rod, and the transmission member is detachably fixedly connected to the pipe, rod, or workpiece.

4. The rod tube laser groove engraving machine according to claim 1, characterized in that: The laser structure comprises a laser groove engraving machine, a sensor, a detector and a PLC. The sensor and the detector are connected to the PLC through electrical signals, and the PLC is connected to the laser groove engraving machine.

5. The rod tube laser groove engraving machine according to claim 4, characterized in that: The laser grooving machine includes a laser cutting head, a laser grooving auxiliary support block and a base. The laser cutting head is installed on the base, the sensor and the detector are installed on the laser cutting head, and the laser grooving auxiliary support block is fixed on the base and located below the laser cutting head.

6. The rod and tube laser groove engraving machine according to claim 5, characterized in that: There are two laser grooving auxiliary support blocks, and a horizontally arranged limiting tube is fixed on the laser grooving auxiliary support block, and the pipe-rod workpiece passes through the limiting tube.

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