Clamping device of laser pipe cutting machine

Abstract

The utility model discloses a clamping device of a laser pipe cutting machine, which comprises a machine body, a chuck is arranged on the machine body, four grasping clamps are connected on the chuck after sliding, grooves are arranged on the grasping clamps, two rotating plates are rotatably connected in each groove, step surfaces are arranged in the grooves, when a square pipe is clamped, the rotating plates are attached to the step surfaces, and when a round pipe is clamped, the rotating plates are attached to the step surfaces. The rotating plate rotates, is separated from the step surface and is attached to the round pipe, so that when the square pipe is clamped, the four grippers slide at the same time to form a rectangular matrix, the square pipe can be better clamped, when the round pipe is clamped, the two grippers with the rotating plate slide, and when the round pipe is in contact with the rotating plate, the rotating plate rotates and clamps the round pipe; according to the design, the chuck can be correspondingly adjusted according to the shape of the pipe, so that the pipe can be better clamped, and particularly a round pipe can be stably clamped.

Description

Technical Field

[0001] This utility model belongs to the field of pipe cutting technology, and relates to laser pipe cutting machines, and in particular to clamping devices for laser pipe cutting machines. Background Technology

[0002] Laser tube cutting machines are mainly used to cut various hollow round tubes of non-metallic solid materials, such as plastic tubes, PVC tubes, PVB tubes, and other industrial and civil materials. These laser machines use CO2 metal laser tubes and consume approximately 100W-500W of power, making them the preferred processing machinery for small and medium-sized enterprises.

[0003] For example, the laser tube cutting machine disclosed in CN206883018U includes a frame, on which a control system, a cutting mechanism, a pushing mechanism, and at least two top-loading mechanisms are provided. The top-loading mechanisms are vertically and vertically connected to the frame. The top-loading mechanism includes a first position for placing materials and a second position for the pushing mechanism to pass through after lowering. The pushing mechanism slides along the X-axis of the frame. The cutting mechanism includes a laser cutting head, which slides along the Y-axis and Z-axis of the frame. The control system is connected to the cutting mechanism, the pushing mechanism, and the top-loading mechanism respectively, and is used to drive the cutting mechanism, the pushing mechanism, and the top-loading mechanism.

[0004] When the chuck of the aforementioned laser tube cutting machine clamps tubes, since the tubes can be square or round, and the chuck is mostly a four-jaw chuck, it is more convenient to clamp square tubes. However, when clamping round tubes, the chuck cannot fit well, resulting in unstable clamping and slippage during cutting. Utility Model Content

[0005] This utility model provides a clamping device for a laser tube cutting machine, which can change according to the shape of the tube when clamping it, thereby better fitting the tube and improving the clamping effect of the chuck.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a clamping device for a laser tube cutting machine, including a machine body, a chuck on the machine body, four grippers connected to the chuck after sliding, grooves on the grippers, two rotating plates rotatably connected in each groove, and a stepped surface in the groove. When clamping a square tube, the rotating plate is in contact with the stepped surface. When clamping a round tube, the rotating plate rotates and separates from the stepped surface and is in contact with the round tube.

[0007] A further preferred embodiment of this utility model is as follows: a spring is fixedly connected between each of the rotating plates and the groove, and the spring deforms when the rotating plate rotates into the groove.

[0008] A further preferred embodiment of this utility model is: a fixed shaft is fixedly connected inside the groove, and the rotating plate is rotatably connected to the fixed shaft.

[0009] A further preferred embodiment of this utility model is that the rotating plate has an arc-shaped surface on the side away from the groove.

[0010] A further preferred embodiment of this utility model is that any two of the grippers are provided with a rotating plate.

[0011] A further preferred embodiment of this invention is that an anti-slip pad is fixedly connected to the side wall of each rotating plate away from the groove, and the anti-slip pad is elastic.

[0012] A further preferred embodiment of this invention is that there is a gap between the two rotating plates on each of the grippers.

[0013] A further preferred technical solution of this utility model is as follows: each of the rotating plates is fixedly connected with a protrusion, and a slot is provided on the inner side wall of the groove to facilitate the protrusion to be inserted. When the protrusion is inserted into the slot, the rotating plate is fixed in the groove.

[0014] A further preferred embodiment of this invention is that each of the grippers is rotatably connected to several rollers on one side of the rotating plate.

[0015] Compared with the prior art, this utility model includes a machine body with a chuck on it. Four grippers are connected to the chuck after sliding. The grippers have grooves, and two rotating plates are rotatably connected in each groove. The grooves have stepped surfaces. When clamping a square tube, the rotating plates are in contact with the stepped surfaces. When clamping a round tube, the rotating plates rotate and separate from the stepped surfaces to be in contact with the round tube. Therefore, when clamping a square tube, the four grippers can slide simultaneously to form a rectangular array, which can better clamp the square tube. When clamping a round tube, the two grippers with rotating plates slide. When the round tube comes into contact with the rotating plates, the rotating plates will rotate and clamp the round tube. This design allows the chuck to be adjusted according to the shape of the tube, thereby better clamping the tube, especially the round tube, which can be firmly clamped. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 The overall structure of this utility model Figure 1 ;

[0018] Figure 2 This is an overall structural diagram of the gripper of this utility model;

[0019] Figure 3 A cross-sectional view of this utility model Figure 1 ;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 A cross-sectional view of this utility model Figure 2 ;

[0022] Figure 6 This utility model Figure 5 Enlarged view of point B in the middle.

[0023] In the diagram: 1. Machine body; 2. Chuck; 3. Grip; 4. Roller; 5. Turning plate; 6. Gap; 7. Arc surface; 8. Groove; 9. Stepped surface; 10. Spring; 11. Fixed shaft; 12. Slot; 13. Protrusion. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0026] Figures 1-5 As shown, the clamping device of the laser tube cutting machine includes a body 1, a chuck 2 on the body 1, and four grippers 3 connected to the chuck 2 after sliding. When clamping the tube, the sliding grippers 3 gradually reduce the gap 6 between the four grippers 3 until they abut against the tube, thus clamping the tube and facilitating subsequent laser drilling and cutting. Grooves 8 are provided on any two grippers 3, and two rotating plates 5 are rotatably connected in each groove 8. A fixed shaft 11 is fixedly connected in the groove, and the rotating plates 5 are rotatably connected to the fixed shaft 11. This design restricts the range of motion of the rotating plates 5, so that the rotating plates 5 can only rotate around the fixed shaft 11. Rotating plates 5 are provided on any two grippers 3, and stepped surfaces 9 are provided in the grooves 8. When clamping a square tube, the rotating plates 5 are in contact with the stepped surfaces 9. When clamping a round tube, the rotating plates 5 rotate and separate from the stepped surfaces 9 and are in contact with the round tube.

[0027] Figures 2-5As shown, when clamping the square tube, the four grippers 3 slide simultaneously. As the grippers 3 slide, the gap 6 between the four grippers 3 gradually decreases, thereby clamping the square tube. At this time, the surface of the grippers 3 is in contact with the surface of the square tube, thus clamping the square tube better.

[0028] Figures 2-5 As shown, when clamping a round tube, the two grippers 3 with rotating plates 5 are slid, so that the distance between the two grippers 3 gradually decreases until they come into contact with the round tube. At this time, the grippers 3 are slid further, and the round tube pushes the rotating plate 5 to rotate, so that the rotating plate 5 tilts and comes into contact with the surface of the round tube. At this time, the rotating plate 5 separates from the stepped surface 9 until the round tube is clamped. This design allows the grippers 3 to not only clamp square tubes, but also to firmly clamp round tubes, improving the gripping effect and application range of the chuck 2.

[0029] Figures 2-5 As shown, the rotating plate 5 has an arc-shaped surface 7 on the side away from the groove 8. This design allows the rotating plate 5 to fit better with the round tube, thereby improving the effect of the gripper 3.

[0030] Figures 2-5 As shown, a spring 10 is fixedly connected between each rotating plate 5 and the groove 8. When the rotating plate 5 rotates into the groove 8, the spring 10 deforms. Therefore, when the round tube pushes the rotating plate 5 to rotate, the spring 10 deforms. After cutting or drilling is completed, the gripper 3 slides in the opposite direction, so that the rotating plate 5 is separated from the round tube. After that, the deformed spring 10 pushes the rotating plate 5 to reset, which is convenient for the next use and can prevent the rotating plate 5 from being located outside the groove 8 and affecting the clamping of the square tube.

[0031] Figures 2-5 As shown, each rotating plate 5 has an anti-slip pad fixedly connected to the side wall away from the groove 8. The anti-slip pad is elastic and can increase the friction between the rotating plate 5 and the round tube, thereby making the round tube more stable when it is clamped.

[0032] Figures 2-5 As shown, there is a gap 6 between the two rotating plates 5 on each gripper 3 to prevent the two rotating plates 5 in the same groove 8 from shifting and abutting each other after long-term use. This design ensures that the rotating plates 5 can still grip the gripper 3 normally after long-term use.

[0033] Figures 2-6 As shown, each rotating plate 5 is fixedly connected with a protrusion 13. The inner side wall of the groove 8 is provided with a slot 12 to facilitate the insertion of the protrusion 13. When the protrusion 13 is inserted into the slot 12, the rotating plate 5 is fixed in the groove 8. Therefore, when the deformed spring 10 drives the rotating plate 5 to reset, the protrusion 13 on the rotating plate 5 is inserted into the groove 8, thereby fixing the rotating plate 5 and preventing the rotating plate 5 from rotating during the clamping of the square tube or during the sliding process, which would affect the clamping.

[0034] Figures 2-5 As shown, each gripper 3 is rotatably connected to several rollers 4 on one side of the rotating plate 5. This design allows the rollers 4 to rotate due to the force when the square or round tube is pulled, so that the surface of the rollers makes contact with the pulled tube.

[0035] The clamping device for the laser tube cutting machine provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A clamping device for a laser tube cutting machine, comprising a body, characterized in that, The machine body is equipped with a chuck, and four grippers are connected to the chuck after sliding. The grippers are provided with grooves, and two rotating plates are rotatably connected in each groove. The grooves are provided with stepped surfaces. When a square tube is gripped, the rotating plates are in contact with the stepped surfaces. When a round tube is gripped, the rotating plates rotate and separate from the stepped surfaces and are in contact with the round tube.

2. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, Each of the rotating plates is fixedly connected to the groove with a spring, and the spring deforms when the rotating plate rotates into the groove.

3. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, A fixed shaft is fixedly connected inside the groove, and the rotating plate is rotatably connected to the fixed shaft.

4. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, The rotating plate has an arc-shaped surface on the side away from the groove.

5. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, Any two of the grippers are equipped with a rotating plate.

6. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, Each of the rotating plates has an anti-slip pad fixedly connected to the side wall away from the groove, and the anti-slip pad is elastic.

7. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, There is a gap between the two rotating plates on each of the grippers.

8. The clamping device for the laser tube cutting machine according to claim 1, characterized in that, Each of the rotating plates is fixedly connected with a protrusion, and a slot is provided on the inner side wall of the groove to facilitate the protrusion to be inserted. When the protrusion is inserted into the slot, the rotating plate is fixed in the groove.

9. The clamping device for a laser tube cutting machine according to claim 1, characterized in that, Each of the grippers is rotatably connected to several rollers on one side of the rotating plate.

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