Laser cutting device for channel beams

Abstract

The present invention discloses a laser cutting device for trough beams, which relates to the technical field of laser cutting equipment and comprises a cutting seat, a laser cutting machine being provided above the cutting seat, and conveying devices being provided on both sides below the cutting seat; the cutting seat comprises a base, two first swing arms being symmetrically installed on the top of the base, a first driving mechanism being provided in the base for driving the two first swing arms to swing toward or away from each other; a second swing arm and a second driving mechanism being installed on the first swing arm, the second driving mechanism driving the second swing arm to swing toward or away from the outside of the first swing arm. The present invention solves the technical problem of low cutting efficiency of medium trough beams in the prior art, and the present invention realizes rapid clamping and cutting of trough beams, and separate transportation of L-shaped plates formed by cutting, thereby improving production efficiency. At the same time, the present invention also has the advantages of being easy to use and having high structural stability.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting equipment, and in particular to a laser cutting device for a channel beam. Background Art

[0002] The segmented trough beam is laser cut along the middle into two L-shaped plates. The L-shaped plates are used to manufacture the connecting plates of the frame. Currently, the trough beam is fixed by a chuck. The L-shaped plates formed after laser cutting are removed manually. This method makes the clamping efficiency of the trough beam low, and the cutting and transfer of the L-shaped plates cannot be automated. Summary of the Invention

[0003] In view of the above defects, the purpose of the present invention is to provide a laser cutting device for trough beams, aiming to solve the technical problem of low trough beam cutting efficiency in the prior art.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A laser cutting device for a channel beam comprises a cutting seat, a laser cutting machine is provided above the cutting seat, and conveying devices are provided on both sides below the cutting seat;

[0006] The cutting seat includes a base, two first swing arms are symmetrically installed on the top of the base, and a first driving mechanism is provided in the base to drive the two first swing arms to swing towards each other or back to back;

[0007] The first swing arm is mounted with a second swing arm and a second driving mechanism, and the second driving mechanism drives the second swing arm to swing toward or away from the outside of the first swing arm.

[0008] Wherein, a supporting roller is installed on the outer end of the first swing arm.

[0009] A stopper is fixed to the outer side of the first swing arm, and the outer end of the second swing arm swings toward between the supporting roller and the stopper.

[0010] Among them, the first swing arm is rotatably connected to the base through the first rotating shaft, and a gear is coaxially fixed to the first rotating shaft; the first driving mechanism includes a slider slidably mounted on the base, and the slider is equipped with a rack meshing with the gear, and the base is equipped with a second rotating shaft driven to rotate by the first power component, the axial direction of the second rotating shaft is consistent with the sliding direction of the slider, and the second rotating shaft is provided with a threaded section, and a connecting sleeve is screwed on the threaded section, and the connecting sleeve is rotatably connected to the slider toward one end of the slider.

[0011] The second rotating shaft is provided with two threaded sections with opposite rotation directions, and the two threaded sections are respectively screwed with connecting sleeves.

[0012] The base is provided with a sliding groove adapted to the slider, the end of the slider not connected to the connecting sleeve is fixedly connected to a guide rod coaxial with the second rotating shaft, and the base is provided with a sliding hole adapted to the guide rod.

[0013] The second driving mechanism includes a linear driving mechanism, a fixed end of the linear driving mechanism is hinged to the first swing rod, and an action end of the linear driving mechanism is hinged to the second swing rod.

[0014] A dust box is installed on the base, with a mesh plate in the middle of the dust box. An exhaust port is provided on the side of the dust box, which is connected to the exhaust gas treatment system. The top opening of the dust box faces the laser head of the laser cutting machine.

[0015] Among them, a mounting block is installed on the base, and two fixing rods are fixed on the mounting block. The two fixing rods are arranged in parallel and spaced apart. Two stoppers are fixed on the bottom of the dust box, and the two stoppers are respectively blocked on the back-to-opposite sides of the two fixing rods.

[0016] The conveying device includes two chain-sprocket mechanisms arranged side by side, and a plurality of support rods are installed between the chains of the chain-sprocket mechanisms. The plurality of support rods are arranged at intervals along the conveying direction of the chains.

[0017] After adopting the above technical solution, the beneficial effects of the present invention are:

[0018] The laser cutting device for the channel beam of the present invention includes a cutting seat, a laser cutting machine is provided above the cutting seat, and conveying devices are provided on both sides below the cutting seat; the cutting seat includes a base, two first swing arms are symmetrically installed on the top of the base, and a first driving mechanism is provided in the base to drive the two first swing arms to swing toward or away from each other; a second swing arm and a second driving mechanism are installed on the first swing arm, and the second driving mechanism drives the second swing arm to swing toward or away from the outside of the first swing arm. The channel beam is transported to the top of the cutting seat by the conveying mechanism and is buckled on the outside of the two first swing arms and supported on the inside of the channel beam by the two first swing arms. Then, the first driving mechanism drives the two first swing arms to move away from each other until the first swing arms rotate to a vertical position, and the top end of the first swing arm is supported on the inner wall of the web of the channel beam. Then, the second driving mechanism drives the second swing arm to press against the outside of the first swing arm until the second swing arm presses the flange of the channel beam tightly against the second swing arm, thereby clamping the channel beam. After clamping, the laser head cuts the web along the center of the web of the channel beam, thereby cutting the channel beam into two L-shaped plates. Each L-shaped plate is clamped by two first swing arms and corresponding second swing arms respectively; when unloading, the first drive mechanism continues to control the two first swing arms to swing to both sides until the first swing arms swing down to above the conveying device, and then the second drive mechanism drives the second swing arms to gradually swing away from the first swing arms. At the same time, the L-shaped plate begins to fall because there is no clamping force, until the L-shaped plate falls on the conveying device and is transported to the next process by the conveying device. At the same time, the first swing arm and the second swing arm are reset to the initial state, thereby completing the rapid clamping, cutting and separate transportation of the trough beam, thereby improving the laser cutting efficiency of the trough beam.

[0019] Since the outer end of the first swing arm is equipped with a support roller, when the trough beam is clamped, the wheel body of the support roller is supported on the web and wing plate of the trough beam at the same time, ensuring the stability of the trough beam clamping; when the L-shaped plate is unloaded, the rolling support of the support roller makes the downward movement of the L-shaped plate smoother, reducing the hard wear between the first swing arm and the L-shaped plate.

[0020] Since the first swing arm is rotatably connected to the base through the first rotating shaft, a gear is coaxially fixed to the first rotating shaft; the first driving mechanism includes a slider slidably mounted on the base, the slider is equipped with a rack meshing with the gear, and the base is equipped with a second rotating shaft driven to rotate by the first power component, the axial direction of the second rotating shaft is consistent with the sliding direction of the slider, the second rotating shaft is provided with a threaded section, the threaded section is threaded with a connecting sleeve, and the connecting sleeve is rotatably connected to the slider toward one end of the slider.

[0021] Since the second rotating shaft is provided with two threaded sections with opposite rotation directions, and the two threaded sections are respectively screwed with connecting sleeves, the two connecting sleeves can be driven to rotate synchronously by driving the second rotating shaft to rotate, thereby achieving synchronous swinging of the two first swing arms towards or away from each other.

[0022] Since the base is provided with a sliding groove matched with the slider, the end of the slider not connected to the connecting sleeve is fixedly connected to a guide rod coaxial with the second rotating shaft, and the base is provided with a sliding hole matched with the guide rod.

[0023] Since the second driving mechanism includes a linear driving mechanism, the fixed end of the linear driving mechanism is hinged to the first rocker arm, and the action end of the linear driving mechanism is hinged to the second rocker arm, when the slider slides in the slide groove, the guide rod slides synchronously in the slide hole, thereby improving the stability of the slider movement.

[0024] A dust box is mounted on the base, separated by a mesh panel. A side exhaust port connects to the exhaust treatment system, and the top opening faces the laser head. Particles generated during the cutting process fall onto the mesh panel, while exhaust gas flows through the exhaust port and enters the exhaust treatment system for treatment, improving the quality of the working environment.

[0025] Since a mounting block is installed on the base, two fixing rods are fixedly connected to the mounting block, and the two fixing rods are arranged in parallel and spaced apart, two blocks are fixedly connected to the bottom of the dust box, and the two blocks are respectively blocked on the back-to-back sides of the two fixing rods, and the two limit blocks are respectively blocked on the back-to-back sides of the two fixing rods. The placement of the dust box is achieved by using the two fixing rods, which reduces the manufacturing cost and makes it more convenient to take and place the dust box.

[0026] Since the conveying device includes two chain-sprocket mechanisms arranged side by side, a plurality of support rods are installed between the chains of the chain-sprocket mechanisms, and the plurality of support rods are arranged at intervals along the conveying direction of the chains. The two outer sides of the L-shaped plate rest on the two adjacent support rods, thereby achieving stable placement of the L-shaped plate on the conveying device.

[0027] In summary, the present invention solves the technical problem of low cutting efficiency of channel beams in the prior art. The present invention enables rapid clamping and cutting of channel beams, as well as efficient and automatic transfer of the cut L-shaped plates, thereby improving production efficiency. Furthermore, the present invention has the advantages of ease of use and high mechanical stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a laser cutting device for a channel beam (when clamped) according to the present invention;

[0029] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0030] Figure 3 This is a schematic structural diagram of a laser cutting device for a trough beam (during blanking) according to the present invention;

[0031] Figure 4 yes Figure 1 A top view of the conveying device;

[0032] In the figure, there are a laser cutting machine 1, a laser head 10, a cutting seat 2, a base 20, a slide groove 200, a slide hole 201, a mounting block 202, a fixing rod 203, a first swing arm 21, a support roller 210, a stop block 211, a first rotating shaft 212, a gear 213, a first driving mechanism 22, a slider 220, a rack 221, a first power assembly 222, a second rotating shaft 223, a threaded section 224, a connecting sleeve 225, a guide rod 226, a second swing arm 23, a second driving mechanism 24, a dust collecting box 25, a mesh plate 250, a limit block 251, a conveying device 3, a chain-sprocket mechanism 30, a support rod 31, a trough beam 4, and an L-shaped plate 5. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] The orientations mentioned in this specification are based on the orientations of the laser cutting device for trough beams of the present invention during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0035] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 As shown together, the laser cutting device for the trough beam 4 includes a cutting seat 2, a laser cutting machine 1 is provided above the cutting seat 2, the laser cutting machine 1 includes a gantry, a laser head 10 driven by an X-direction moving mechanism, a Y-direction moving mechanism and a Z-direction moving mechanism is installed on the gantry, and the laser head 10 faces downwardly towards the cutting seat 2.

[0036] The cutting seat 2 includes a base 20, two first swing arms 21 are symmetrically installed on the top of the base 20, and a first driving mechanism 22 is provided in the base 20 for driving the two first swing arms 21 to swing toward each other or away from each other; a second swing arm 23 and a second driving mechanism 24 are installed on the first swing arm 21, and the second driving mechanism 24 drives the second swing arm 23 to swing toward or away from the outside of the first swing arm 21; a conveying device 3 is provided on both sides below the cutting seat 2.

[0037] During use, the two first swing arms 21 in the initial state are both swung to an angle where both are upward and tilted toward each other, and the second swing arm 23 opens and closes a certain angle in a direction away from the first swing arm 21 .

[0038] The channel beam 4 is transported to the top of the cutting seat 2 by the transport mechanism and buckled on the outside of the two first swing arms 21. The two first swing arms 21 are supported on the inner side of the channel beam 4. Then the first driving mechanism 22 drives the two first swing arms to move backwards until the first swing arms rotate to the vertical position. The top end of the first swing arm is supported on the inner wall of the web of the channel beam 4. Then the second driving mechanism 24 drives the second swing arm 23 to press toward the outside of the first swing arm 21 until the second swing arm 23 presses the wing of the channel beam 4 tightly against the second swing arm, thereby realizing the clamping of the channel beam 4. After the clamping is completed, the laser head 10 cuts off the web along the center of the web of the channel beam 4, thereby cutting the channel beam 4 into two L-shaped plates 5. The two plates after cutting The L-shaped plate 5 is clamped by two first swing arms 21 and corresponding second swing arms 23 respectively; when unloading, the first drive mechanism 22 continues to control the two first swing arms 21 to swing toward both sides until the first swing arm 21 swings down to above the conveying device 3, and then the second drive mechanism 24 drives the second swing arm 23 to gradually swing away from the first swing arm 21. At the same time, the L-shaped plate 5 begins to fall because there is no clamping force, until the L-shaped plate 5 falls on the conveying device 3 and is transported to the next process by the conveying device 3. At the same time, the first swing arm 21 and the second swing arm 23 are reset to the initial state, thereby completing the rapid clamping, cutting and separate transportation of the trough beam 4, thereby improving the laser cutting efficiency of the trough beam 4.

[0039] Furthermore, a support roller 210 is mounted on the outer end of the first swing arm 21. When the channel beam 4 is clamped, the wheel of the support roller 210 is supported on both the web and flange of the channel beam 4, ensuring the stability of the clamping of the channel beam 4. When the L-shaped plate 5 is unloaded, the rolling support of the support roller 210 allows the L-shaped plate 5 to move downward more smoothly, reducing the hard wear between the first swing arm 21 and the L-shaped plate 5. A stopper 211 is fixed to the outer side of the first swing arm 21 via bolts, and the outer end of the second swing arm 23 swings between the support roller 210 and the stopper 211.

[0040] Preferably, in this embodiment, the first swing arm 21 is rotatably connected to the base 20 through the first rotating shaft 212, and a gear 213 is coaxially fixed on the first rotating shaft 212; the first driving mechanism 22 includes a slider 220 slidably mounted on the base 20, and the slider 220 is equipped with a rack 221 meshing with the gear 213, and the base 20 is equipped with a second rotating shaft 223 driven to rotate by the first power component 222, and the axial direction of the second rotating shaft 223 is consistent with the sliding direction of the slider 220, and the second rotating shaft 223 is provided with a threaded section 224, and a connecting sleeve 225 is screwed on the threaded section 224, and the connecting sleeve 225 is rotatably connected to the slider 220 at one end facing the slider 220, and the first power component 222 is preferably a servo motor or a stepper motor, and a driving gear 213 is mounted on the motor shaft of the servo motor or the stepper motor, and a driven gear 213 meshing with the driving gear 213 is coaxially fixedly mounted on the second rotating shaft 223. The first power component 222 drives the second rotating shaft 223 to rotate, and then drives the threaded segment 224 to rotate relatively in the connecting sleeve 225, thereby driving the axial movement of the connecting sleeve 225, realizing the synchronous sliding of the slider 220. Under the transmission of the gear 213 and the gear 213, the first swing arm 21 realizes stable and precise swinging, and the first swing arm 21 after swinging will not shake easily due to the spiral matching relationship between the threaded segment 224 and the connecting sleeve 225, thereby realizing the locking of the first swing arm 21 after swinging. In other methods, the first driving mechanism 22 can also adopt a worm gear transmission mechanism, the worm wheel is coaxially fixed on the first rotating shaft 212, and the worm meshing with the worm wheel is rotatably installed on the base 20, and is driven to rotate by a motor with a self-locking function.

[0041] Furthermore, two threaded sections 224 with opposite rotation directions are provided on the second rotating shaft 223, and the two threaded sections 224 are respectively screwed with connecting sleeves 225. By driving the rotation of a second rotating shaft 223, the two connecting sleeves 225 can be driven to rotate synchronously, thereby realizing the synchronous swinging of the two first swing arms 21 towards each other or in opposite directions.

[0042] Furthermore, the base 20 is provided with a sliding groove 200 adapted to the slider 220, and the end of the slider 220 not connected to the connecting sleeve 225 is fixedly connected to a guide rod 226 coaxial with the second rotating shaft 223, and the base 20 is provided with a sliding hole 201 adapted to the guide rod 226. When the slider 220 slides in the sliding groove 200, the guide rod 226 slides synchronously in the sliding hole 201, thereby improving the stability of the movement of the slider 220.

[0043] Preferably, the second drive mechanism 24 includes a linear drive mechanism, a fixed end of the linear drive mechanism is hinged to the first rocker arm, an action end of the linear drive mechanism is hinged to the second rocker arm, and the linear drive mechanism is a cylinder or an electric push rod.

[0044] Furthermore, a dust box 25 is installed on the base 20, and a mesh plate 250 is separated in the middle of the dust box 25. An exhaust port is provided on the side of the dust box 25, and the exhaust port is connected to the exhaust gas treatment system. The top opening of the dust box 25 faces the laser head 10 of the laser cutting machine 1. The particulate matter generated during the cutting process of the laser cutting machine 1 falls on the mesh plate 250, and the exhaust gas generated during the cutting process enters the exhaust gas treatment system through the exhaust port for treatment, thereby improving the quality of the working environment.

[0045] Furthermore, a mounting block 202 is installed on the base 20, and two fixing rods 203 are fixed to the mounting block 202. The two fixing rods 203 are arranged in parallel and spaced apart. The bottom of the dust box 25 is fixedly connected to two limit blocks 251 by bolts. The two limit blocks 251 are respectively blocked on the back-to-opposite sides of the two fixing rods 203. The placement of the dust box 25 is achieved by the two fixing rods 203, which reduces the manufacturing cost and makes the removal and placement of the dust box 25 more convenient.

[0046] Preferably, the conveying device 3 includes two chain-sprocket mechanisms 30 arranged side by side, and several support rods 31 are installed between the chains of the chain-sprocket mechanism 30. The connecting columns of the opposite chain links on the two chains are welded to the two ends of the support rods 31 respectively. Several support rods 31 are arranged at intervals along the transmission direction of the chain, so that the two outer side surfaces of the L-shaped plate 5 are supported on two adjacent support rods 31, thereby realizing the stable placement of the L-shaped plate 5 on the conveying device 3.

[0047] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by ordinary technicians in this field based on the above-mentioned concept without creative work are all within the scope of protection of the present invention.

Claims

1. A laser cutting device for a channel beam, comprising a cutting seat, above which a laser cutting machine is provided, characterized in that: Conveying devices are provided on both sides below the cutting seat; the cutting seat includes a base, two first swing arms are symmetrically mounted on the top of the base, and a first driving mechanism for driving the two first swing arms to swing toward or away from each other is provided in the base; A second swing arm and a second driving mechanism are mounted on the first swing arm, and the second driving mechanism drives the second swing arm to swing toward or away from the outside of the first swing arm; The first swing arm is rotatably connected to the base via a first rotating shaft, and a gear is coaxially fixed to the first rotating shaft; the first driving mechanism includes a slider slidably mounted on the base, the slider is mounted with a rack meshing with the gear, and the base is mounted with a second rotating shaft driven to rotate by the first power assembly, the axial direction of the second rotating shaft is consistent with the sliding direction of the slider, the second rotating shaft is provided with a threaded section, a connecting sleeve is screwed on the threaded section, and the connecting sleeve is rotatably connected to the slider at one end facing the slider; The second driving mechanism includes a linear driving mechanism, a fixed end of the linear driving mechanism is hinged to the first swing arm, and an action end of the linear driving mechanism is hinged to the second swing arm.

2. A laser cutting device for a channel beam according to claim 1, characterized in that: A supporting roller is installed at the outer end of the first swing arm.

3. A laser cutting device for a channel beam according to claim 2, characterized in that: A stopper is fixedly connected to the outer side of the first swing arm, and the outer end of the second swing arm swings toward between the supporting roller and the stopper.

4. A laser cutting device for a channel beam according to claim 1, characterized in that: The second rotating shaft is provided with two threaded sections with opposite rotation directions, and the two threaded sections are respectively screwed with connecting sleeves.

5. A laser cutting device for a channel beam according to claim 4, characterized in that: The base is provided with a sliding groove adapted to the slider, the end of the slider not connected to the connecting sleeve is fixedly connected to a guide rod coaxial with the second rotating shaft, and the base is provided with a sliding hole adapted to the guide rod.

6. The laser cutting device for a channel beam according to claim 1, characterized in that: A dust box is installed on the base, the dust box is separated by a mesh plate in the middle, an exhaust port is provided on the side of the dust box, the exhaust port is connected to the exhaust gas treatment system, and the top opening of the dust box faces the laser head of the laser cutting machine.

7. A laser cutting device for a channel beam according to claim 6, characterized in that: A mounting block is mounted on the base, and two fixing rods are fixedly connected to the mounting block. The two fixing rods are arranged in parallel and spaced apart. Two stoppers are fixedly connected to the bottom of the dust collecting box, and the two stoppers are respectively blocked on the back-to-opposite sides of the two fixing rods.

8. The laser cutting device for a channel beam according to claim 1, characterized in that: The conveying device includes two chain-sprocket mechanisms arranged side by side, a plurality of support rods are installed between the chains of the chain-sprocket mechanisms, and the plurality of support rods are arranged at intervals along the conveying direction of the chains.

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