A kind of anti-injury buffer device of laser pipe cutting machine chuck

Abstract

The utility model discloses a kind of anti-pinch injury buffer devices of laser pipe cutting machine chuck, including dog, the outer wall of three described dog is respectively provided with two through holes, the outer wall of three described dog is respectively contacted with two side plates, the upper surface of each described gasket is respectively contacted with corresponding nut, every two described nut is connected with a threaded rod thread, every described threaded rod is respectively inserted into corresponding through hole. The utility model is provided with dog, through hole, side plate, clamping plate, jack, sawtooth protrusion, gasket, nut and threaded rod, when it is needed to buffer between dog and pipe, then metal soft pad is inserted between two side plates and clamping plate, three dogs are all installed on metal soft pad by the above-mentioned mode, so that pipe with smaller hardness or surface processing completed can be clamped by dog, and at the same time, it will not cause clamp injury to pipe, so that the working effect of laser pipe cutting machine chuck is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of laser tube cutting machines, and in particular to an anti-pinch buffer device for the chuck of a laser tube cutting machine. Background Technology

[0002] The chuck of a laser tube cutting machine is a crucial component used to clamp and secure the tube, ensuring its stability during the cutting process for precise cutting. Common types include four-jaw chucks and three-jaw chucks. Four-jaw chucks clamp the tube using four independently movable jaws, accommodating tubes of various shapes and sizes, and are particularly effective at clamping non-circular tubes such as square and rectangular tubes. Three-jaw chucks have three evenly distributed jaws that automatically center, providing fast clamping speed and high concentricity for circular tubes.

[0003] However, when using the chuck of a current laser tube cutting machine to fix tubes with low hardness or already processed surfaces, the chuck jaws are harder than the tube itself. Therefore, when fixing the tube, the chuck will damage the tube, causing scratches on the tube surface. Tubes with low hardness will also be deformed, which reduces the working effect of the laser tube cutting machine chuck. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-pinch buffer device for the chuck of a laser tube cutting machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A clamping buffer device for a laser tube cutting machine chuck includes jaws. Each of the three jaws has two through holes on its outer wall. The outer walls of the three jaws contact two side plates. Each side plate has two through holes on its surface. The outer walls of every two side plates are inserted into a chuck plate through corresponding insertion holes. The surfaces of multiple chuck plates are machined with serrated protrusions, the size of which matches the grooves on the surfaces of the corresponding jaws. The outer wall of each side plate contacts two gaskets. The upper surface of each gasket contacts a corresponding nut. Every two nuts are threadedly connected to a threaded rod, and each threaded rod is inserted into a corresponding through hole.

[0007] Preferably, all three jaws are slidably connected to the chuck.

[0008] Preferably, every two side plates are slidably connected to a metal pad via a groove, and each metal pad is slidably connected to a corresponding card plate.

[0009] Preferably, each of the metal pads is made of brass, a material with low hardness and a certain degree of toughness.

[0010] Preferably, the outer wall of each pair of side plates can also be slidably connected to a retaining ring.

[0011] Preferably, the sidewalls of the three retaining rings fit together.

[0012] Preferably, all three retaining rings are made of brass, a material with low hardness and a certain degree of toughness.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. With the configured jaws, through holes, side plates, clamping plates, insertion holes, serrated protrusions, washers, nuts, and threaded rods, when buffering is needed between the jaws and the pipe, the operator first places one side plate on the jaw, then inserts two threaded rods into the two through holes, then places two washers on the side plate, and tightens two nuts. After the nuts press against the washers, the operator inserts the protruding part of the side plate into the clamping plate. After the clamping plate is in close contact with the jaw, another side plate is inserted into the clamping plate, and another washer is placed on the lower side plate and fixed with nuts. Then, a metal soft pad is inserted between the two side plates and the clamping plate. By installing metal soft pads on all three jaws in the above manner, pipes with low hardness or finished surfaces can be clamped by the jaws without causing damage to the pipes. This improves the working effect of the laser pipe cutting machine chuck.

[0015] 2. With the addition of side plates, clamping plates, metal pads, and retaining rings, when the thickness of the tube is small and cannot withstand a large clamping force, the operator can replace the metal pads with retaining rings. The retaining rings have a larger contact area with the tube, which makes the force-bearing area of ​​the tube larger, thereby preventing the tube from being damaged by clamping. This also improves the working effect of the laser tube cutting machine chuck. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-pinch buffer device for a laser tube cutting machine chuck proposed in this utility model;

[0017] Figure 2 for Figure 1 A partial sectional view;

[0018] Figure 3 for Figure 1 A diagram showing the replacement of the metal pad with a retaining ring;

[0019] Figure 4 for Figure 1 A magnified view of part A in the middle;

[0020] Figure 5 for Figure 2 A magnified view of part B in the middle.

[0021] In the diagram: 1. Chuck; 2. Claw; 3. Through hole; 4. Threaded rod; 5. Nut; 6. Washer; 7. Side plate; 8. Clamping plate; 9. Insertion hole; 10. Metal pad; 11. Snap ring; 12. Serrated protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, referring to Figures 1 to 5 A clamping buffer device for a laser tube cutting machine chuck includes three jaws 2. Each jaw 2 has two through holes 3 on its outer wall, which penetrate the jaw 2. These through holes 3 allow a threaded rod 4 to pass through, thus fixing the side plates 7 in place with two washers 6 and nuts 5 on both sides. The outer walls of the three jaws 2 contact the two side plates 7, which are tightly fitted against the jaws 2. Each side plate 7 has two through holes 3 on its surface. The outer walls of every two side plates 7 are inserted into a chuck plate 8 through corresponding insertion holes 9. The side plates 7 slide on the chuck plate 8. The surfaces of all chuck plates 8 are machined with serrated protrusions 1. 2. The dimensions of multiple serrated protrusions 12 match the grooves on the surface of the corresponding jaws 2, allowing the clamping plate 8 to fit better with the jaws 2. The outer wall of each side plate 7 contacts two gaskets 6, which are tightly attached to the side plate 7. The upper surface of each gasket 6 contacts the corresponding nut 5. The gasket 6 places the nut 5 to crush the side plate 7. Every two nuts 5 are threadedly connected to a threaded rod 4. Nuts 5 are threaded on both sides of the threaded rod 4, allowing the threaded rod 4 to be fixed between the through holes 3. The nuts 5 are tightened onto the threaded rod 4, and each threaded rod 4 is inserted into the corresponding through hole 3. This allows the two nuts 5 to tightly attach the two side plates 7 to the jaws 2. When buffering is needed between the jaws 2 and the pipe, the operator first places one side plate 7 on the jaw 2, then inserts two threaded rods 4 into the two through holes 3, then places two washers 6 on the side plate 7, and tightens two nuts 5. After the nuts 5 press against the washers 6, the operator inserts the protruding part of the side plate 7 into the clamping plate 8. After the clamping plate 8 is in close contact with the jaw 2, another side plate 7 is inserted into the clamping plate 8, and another washer 6 is placed on the lower side plate 7 and fixed with nuts 5. Then, a metal soft pad 10 is inserted between the two side plates 7 and the clamping plate 8. By installing the metal soft pad 10 on all three jaws 2 in the above manner, the pipe with low hardness or finished surface can be clamped by the jaws 2 without causing damage to the pipe. This improves the working effect of the laser pipe cutting machine chuck.

[0024] In this embodiment, all three jaws 2 are slidably connected to the chuck 1. The jaws 2 slide on the chuck 1. Every two side plates 7 are slidably connected to a metal pad 10 through a sliding groove. The metal pad 10 slides on the side plate 7. Each metal pad 10 is slidably connected to a corresponding clamping plate 8. The metal pad 10 slides on the clamping plate 8. Each metal pad 10 is made of brass, a material with low hardness and certain toughness. Brass and other materials will not damage the pipe. When in contact with the pipe, because its hardness is lower than that of the pipe, the brass will deform. After contact and clamping, it will spring back to its original shape. The outer wall of every two side plates 7 can also be slidably connected to a retaining ring 11. The retaining ring 11 can distribute the clamping force on the pipe onto a larger contact area, avoiding excessive pressure on the surface of the pipe that could cause scratches. The side walls of the three retaining rings 11 fit together. The three retaining rings 11 are also made of brass, a material with low hardness and certain toughness.

[0025] The working principle of this embodiment is as follows: When buffering is needed between the clamp 2 and the pipe, the operator first places one side plate 7 on the clamp 2, then inserts two threaded rods 4 into the two through holes 3, then places two washers 6 on the side plate 7, and tightens two nuts 5. After the nuts 5 press against the washers 6, the operator inserts the protruding part of the side plate 7 into the clamp 8. After the clamp 8 is tightly against the clamp 2, the operator inserts another side plate 7 into the clamp 8, and then places another washer 6 on the lower side plate 7, securing it with nuts 5. Then... Insert the metal pad 10 between the two side plates 7 and the clamping plate 8. Install the metal pad 10 on all three clamping claws 2 in the above manner. This allows pipes with low hardness or finished surface to be clamped by the clamping claws 2 without causing damage to the pipes. When the pipe thickness is small and cannot withstand a large clamping force, the operator can replace the metal pad 10 with a retaining ring 11. The retaining ring 11 has a larger contact area with the pipe, which makes the force-bearing area of ​​the pipe larger, thereby preventing the pipe from being damaged by clamping. This completes the anti-pinch buffering work of the chuck with low hardness.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping buffer device for a laser tube cutting machine chuck, comprising jaws (2), characterized in that, The outer walls of the three claws (2) are respectively provided with two through holes (3). The outer walls of the three claws (2) are respectively in contact with two side plates (7). The surface of each side plate (7) is provided with two through holes (3). The outer walls of each pair of side plates (7) are respectively inserted into a card plate (8) through corresponding insertion holes (9). The surfaces of multiple card plates (8) are all machined with serrated protrusions (12). The size of the multiple serrated protrusions (12) matches the groove on the surface of the corresponding claw (2). The outer wall of each side plate (7) is in contact with two gaskets (6). The upper surface of each gasket (6) is in contact with the corresponding nut (5). Each pair of nuts (5) is threadedly connected to a threaded rod (4). Each threaded rod (4) is respectively inserted into the corresponding through hole (3).

2. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 1, characterized in that, All three jaws (2) are slidably connected to the chuck (1).

3. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 1, characterized in that, Each pair of side plates (7) is slidably connected to a metal pad (10) via a groove, and each metal pad (10) is slidably connected to a corresponding card plate (8).

4. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 3, characterized in that, Each of the metal pads (10) is made of brass, a material with low hardness and a certain degree of toughness.

5. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 1, characterized in that, The outer wall of each pair of said side plates (7) can also be slidably connected to a retaining ring (11).

6. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 5, characterized in that, The sidewalls of the three retaining rings (11) fit together.

7. The anti-pinch buffer device for a laser tube cutting machine chuck according to claim 5, characterized in that, The three retaining rings (11) are all made of brass, a material with low hardness and certain toughness.

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