Semiautomatic laser pipe cutting machine

[0028] Example: Combining Figure 1 ~ Figure 5 As shown, the semi-automatic laser pipe cutting machine provided by the present invention has a frame 1, and the frame 1 is provided with a laser automatic cutting device and a pipe fixing device, wherein: the laser automatic cutting device has an X axis The gantry 3 of the traveling drive device 2 and the laser cutting device 5 arranged on the gantry 3 by the Y-axis traverse drive device 4, the X-axis and Y-axis constitute a horizontal rectangular coordinate system; the pipe fixing device is located at The tightening device and the rotary pneumatic chuck 6 arranged opposite to the X-axis travel direction of the gantry 3 under the laser cutting device 5, and the pipe supporting device arranged between the tightening device and the rotary pneumatic chuck 6 are formed together.

[0029] The rotary pneumatic chuck 6 described in this embodiment is a prior art, and it is composed of a four-jaw pneumatic chuck 6a and a rotary cylinder 6b connected to and driving the four-jaw pneumatic chuck 6a to rotate. The structure of the tightening device is as follows: it has a movable seat 7 assembled on the frame 1 by an X-axis screw drive pair and a cone pivotally mounted on the movable seat 7 and opposite to the rotary pneumatic chuck 6 形头8。 Shaped head 8. The structure of the X-axis screw drive pair is the same as the conventional technology. It has a screw 14 arranged on the frame 1 and a nut arranged on the movable seat 7 and matched with the screw 14, and one end of the screw 14 is arranged There is a crank handle 15, which is convenient for workers to operate, as in figure 2 , image 3 with Figure 4 Shown. At the same time, the frame 1 is provided with a movable seat linear guide 9 that guides the movable seat 7 to travel along the X axis. In this embodiment, the movable seat linear guide 9 adopts a conventional ball linear guide, which is provided on the frame 1 and Two rail bodies 9a arranged in parallel and a sliding element slidably arranged on the rail body 9a, the sliding element is fixed at the bottom of the movable seat 7, see for details Figure 2 to Figure 5 Shown.

[0030] In this embodiment, the X-axis traveling driving device 2 is a towline device fixed on the frame 1 and connected with the gantry 3. At the same time, the frame 1 is provided with a gantry linear guide 10 that guides the gantry 3 to travel along the X axis. The gantry linear guide 10 adopts a conventional ball linear guide and has two parallel-arranged two A guide rail body and a sliding element slidably arranged on the guide rail body, the sliding element is fixed at the bottom of the gantry 3, see figure 2 with Figure 5 Shown.

[0031] In this embodiment, the laser cutting device 5 is composed of a laser (not shown) and a laser cutting head 5a connected to the laser, and the laser cutting head 5a faces vertically downward, see details figure 1 , image 3 with Figure 5 Shown.

[0032] In this embodiment, the Y-axis traverse driving device 4 is a drag chain device fixed on the top of the gantry 3 and connected with the laser cutting device 5. At the same time, the top of the gantry 3 is provided with a cutting device linear guide 11 that guides the laser cutting device 5 to move transversely along the Y axis. In this embodiment, the cutting device linear guide 11 adopts a conventional ball linear guide, which is provided on the gantry 3 Two rail bodies arranged in parallel at the top and a sliding element slidably arranged on the rail body, the sliding element is fixed at the bottom of the laser in the laser cutting device 5, see details figure 2 , image 3 with Figure 5 Shown.

[0033] The structure of the pipe supporting device in this embodiment is as follows: it has an X-shaped fork frame 12, a base 13 assembled on the frame 1 by an X-axis screw drive pair, and a base 13 connected to and driven by the X-shaped A fork frame opening and closing driving device for opening and closing the fork frame 12. In this embodiment, the X-axis screw transmission pair of the assembling base 13 and the X-axis screw transmission pair of the aforementioned assembly movable seat 7 share the screw 14, and the corresponding base 13 is provided with a nut that cooperates with the screw 14. In this way, parts are saved, structure is simplified, and production cost is reduced. See details figure 1 , figure 2 , image 3 with Figure 5 Shown.

[0034] In this embodiment, the X-shaped fork frame 12 has two supporting arms 12a that are crossed and pivotally connected, and the fork frame opening and closing driving device is fixed to two screws (not shown) on the base 13 and respectively. The bottom of the support arm 12a is composed of a nut, the screw is symmetrically provided with reverse threaded sections, and the nuts at the bottom of the two support arms 12a are screw-fitted with the two threaded sections respectively. And in this embodiment, the tops of the two support arms 12a are pivotally connected to the roller 12b, and the end of the screw provided on the base 13 is also provided with a crank (not shown) for manual operation, see for details image 3 Shown.

[0035] In this embodiment, the frame 1 is provided with a base linear guide rail that guides the base 13 to travel along the X axis. For the purpose of saving parts, simplifying the structure and reducing production costs, the linear guide rail of the base and the linear guide 9 of the movable seat in this embodiment share two guide rail bodies 9a, and the corresponding fixed sliding element at the bottom of the base 13 slides Set on the guide rail body 9a, specifically combined Figure 2 to Figure 5 Shown.

[0036] Combine Figure 1 ~ Figure 5 As shown, the specific usage mode and principle of this embodiment are as follows:

[0037] Initially, one end of the pipe A to be cut is manually clamped by the rotary pneumatic chuck 6, and the other end is tightened by the tightening device. Since the X-axis screw drive pair in the tightening device can be manually operated, The size of the top tightening force can be adjusted freely. At the same time, by adjusting the tube support device to clamp and support the center position of the tube A, to ensure that the positioning of the tube A along the X axis is more accurate and stable. After the tube A is fixed, the laser cutting device 5 can be started to cut the tube A. During cutting, the X-axis travel drive device 2 controls the movement of the gantry 3, and the Y-axis traverse drive device 4 controls the laser cutting device 5 horizontally. This ensures that the laser cutting head 5a on the laser cutting device 5 can cut the pipe A according to a predetermined trajectory. At the same time, the pipe A can be rotated by the rotary pneumatic chuck 6 and the conical head 8 to complete multi-angle cutting. Of course, in specific implementation, both the X-axis traveling drive device 2 and the Y-axis traverse drive device 4 are connected to a PLC controller, and are coordinated and controlled by them.