Square tube clamp for laser cutting

Abstract

The utility model discloses a square tube clamp for laser cutting, which comprises a chuck and four clamping blocks, the chuck is mounted on a laser device, the clamping blocks are mounted on the chuck in a sliding manner, the number of the clamping blocks is four, the square tube clamp further comprises two first clamping jaws and two second clamping jaws, and the second clamping jaws are mounted on the chuck in a circumferential array manner. The two first clamping jaws are fixedly installed on the two oppositely-arranged clamping blocks respectively, the two second clamping jaws are slidably installed on the other two oppositely-arranged clamping blocks respectively, adjusting bolts are rotatably installed on the clamping blocks provided with the second clamping jaws, adjusting screw holes are formed in the second clamping jaws in the sliding direction, and the adjusting bolts are connected with the adjusting screw holes in a threaded mode. And the adjusting bolts are in threaded connection with the corresponding adjusting screw holes. The position of the second clamping jaw can be adjusted through the adjusting bolt, so that the distance between the two second clamping jaws can be changed, and the pipe clamping device is convenient to adapt to clamping of a pipe with a rectangular cross section.

Description

Technical Field

[0001] This utility model belongs to the field of pipe clamp technology, and relates to a square tube clamp for laser cutting. Background Technology

[0002] Laser cutting is a commonly used cutting equipment in square tube cutting. To fix the tube during cutting, it needs to be clamped by a square tube clamp.

[0003] Current square tube clamps are mainly four-jaw chucks. The jaws of the four-jaw chuck are equipped with rotatable rollers. Adjacent rollers are staggered, and opposite rollers are located on the same plane. When the four rollers move with the jaws towards the center of the chuck, they clamp the square tube. However, the four-jaw chuck can only clamp square tubes with a square cross-section. It cannot effectively clamp square tubes with a rectangular cross-section, especially on the side with the longer side of the rectangle. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a square tube clamp for laser cutting, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A laser-cut square tube clamp includes:

[0007] A chuck, which is mounted on the laser device;

[0008] The chuck is slidably mounted on the chuck, and four chucks are arranged in a circumferential array.

[0009] The first claw is provided in two parts, and the two first claws are respectively fixedly installed on the two oppositely arranged claw blocks;

[0010] The second claw, there are two of them, and the two second claws are slidably mounted on two other oppositely arranged claw blocks;

[0011] An adjusting bolt, which is rotatably mounted on the locking block;

[0012] An adjusting screw hole is provided in the second jaw along the sliding direction of the second jaw, and the adjusting bolt is threaded into the corresponding adjusting screw hole.

[0013] Optionally, it also includes a synchronizing rod, which is a polygonal columnar rod, and the adjusting bolt has a polygonal columnar hole with the same shape as the synchronizing rod, and the adjusting screw hole is a through hole.

[0014] Optionally, the synchronizing rod is L-shaped.

[0015] Optionally, the card block is provided with a scale.

[0016] Optionally, the second claw includes a mounting portion installed on the card block, and a U-shaped component is fixedly connected to one end of the mounting portion away from the card block. Rollers are rotatably mounted on both ends of the open side of the U-shaped component. The first claw and the second claw have the same structure.

[0017] Optionally, the end face of the card block is provided with a sliding groove, and the second card claw is installed in the sliding groove.

[0018] Optionally, the sliding groove is provided with convex rails on both sides, and the second claw is provided with corresponding rail grooves on its side.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A second jaw is provided whose position can be adjusted by adjusting bolts, so that the distance between the two second jaws can be varied, making it easy to accommodate the clamping of pipes with rectangular cross-sections;

[0021] 2. When adjusting the second jaws, the adjustment distances of the two second jaws should be the same. By setting a structure in which the synchronizing rod passes through the two adjusting bolts at the same time, the two adjusting bolts can be adjusted simultaneously when the synchronizing rod rotates, thereby making the two second jaws adjust synchronously. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0024] Reference numerals: 1. Chuck; 2. Clamping block; 21. Sliding groove; 22. Convex rail; 31. First jaw; 32. Second jaw; 321. Mounting part; 322. U-shaped part; 3. Roller; 4. Adjusting bolt; 41. Adjusting screw hole; 5. Synchronizing rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-2This utility model discloses a square tube clamp for laser cutting, comprising a chuck 1 and clamping blocks 2. The chuck 1 is mounted on a laser device, and the clamping blocks 2 are slidably mounted on the chuck 1. Four clamping blocks 2 are arranged in a circumferential array. The clamping blocks 2 also include first clamping claws 31 and second clamping claws 32. There are two first clamping claws 31, which are respectively fixedly mounted on two oppositely arranged clamping blocks 2. There are two second clamping claws 32, which are respectively slidably mounted on two other oppositely arranged clamping blocks 2. Adjusting bolts 4 are rotatably mounted on the clamping blocks 2 on which the second clamping claws 32 are mounted. The second clamping claws 32 have adjusting screw holes 41 along the sliding direction, and the adjusting bolts 4 are threadedly connected to the corresponding adjusting screw holes 41.

[0027] Specifically, a first claw 31 and a second claw 32 are respectively provided on the locking block 2, and the second claw 32 is slidably installed. A rotatable adjusting bolt 4 is provided on the locking block 2 and is threadedly connected to the second claw 32. Rotating the adjusting bolt 4 can adjust the position of the second claw 32.

[0028] In this way, the position of the second jaw 32 can be adjusted by adjusting the bolt 4, so that the distance between the two second jaws 32 is variable, which is convenient for clamping pipes with rectangular cross-sections.

[0029] In some feasible embodiments, the chuck 1 and the chuck block 2 are commonly used structures in the prior art, such as three-jaw chucks and four-jaw chucks, which will not be described in detail here. The second chuck 32 includes a mounting part 321 installed on the chuck block 2. A U-shaped part 322 is fixedly connected to the end of the mounting part 321 away from the chuck block 2. Rollers 3 are rotatably mounted on both ends of the open side of the U-shaped part 322. The first chuck 31 and the second chuck 32 have the same structure. By setting the U-shaped part 322, each first chuck 31 or second chuck 32 includes two rollers 3, which facilitates better fixation of the tube. The first chuck 31 and the second chuck 32 are installed in a staggered manner, so that the rollers 3 of the second chuck 32 and the first chuck 31 are arranged alternately.

[0030] Both ends of the clamping block 2 that mounts the second chuck 32 are equipped with bearing seats. The inner ring of the bearing seat is fixedly connected to both ends of the adjusting bolt 4. The adjusting bolt 4 and the inner ring of the bearing are fixed by multiple set screws, so that the relative position of the adjusting bolt 4 and the bearing seat is adjustable.

[0031] As a specific embodiment of the laser cutting square tube clamp provided in the application, it also includes a synchronizing rod 5, which is a polygonal columnar rod. The adjusting bolt 4 has a polygonal columnar hole with the same shape as the synchronizing rod 5, and the adjusting screw hole 41 is a through hole.

[0032] Overall, when adjusting the second pawl 32, the adjustment distance of the two second pawls 32 should be the same. By setting a structure through which the synchronizing rod 5 can pass through the two adjusting bolts 4 at the same time, the two adjusting bolts 4 can be adjusted simultaneously when the synchronizing rod 5 rotates, thereby making the two second pawls 32 adjust synchronously.

[0033] In some feasible ways, the threads of the two adjusting bolts 4 are in the same direction as the threads at both ends of the turnbuckle, so that when the synchronizing rod 5 rotates, the two second pawls 32 move synchronously in opposite directions.

[0034] Furthermore, the synchronizing rod 5 is L-shaped.

[0035] It should be understood that by setting the L-shaped synchronizing rod 5, it is convenient to manually rotate the synchronizing rod 5.

[0036] Furthermore, the card block 2 is equipped with scales.

[0037] It should be understood that setting the scale facilitates the adjustment of the second chuck 32.

[0038] In some feasible methods, the scale is set to the difference between the length and width of a rectangular cross-section tube.

[0039] As a specific embodiment of a laser cutting square tube clamp provided in the application, the end face of the clamping block 2 is provided with a sliding groove 21, and the second clamping claw 32 is installed in the sliding groove 21.

[0040] It should be understood that by setting the sliding groove 21, the second pawl 32 is restricted, so that the second pawl 32 maintains linear movement during adjustment.

[0041] Furthermore, the sliding groove 21 is provided with convex rails 22 on both sides, and the second claw 32 is provided with corresponding rail grooves on its side.

[0042] It should be understood that by setting the convex rail 22 and the rail groove, the movement of the second chuck 32 in the axial direction of the chuck 1 is restricted, thereby reducing the impact of the clearance in the axial direction of the chuck 1 caused by the mating structure of the adjusting bolt 4 and the adjusting screw hole 41.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A square tube clamp for laser cutting, characterized in that, include: A chuck, which is mounted on the laser device; The chuck is slidably mounted on the chuck, and four chucks are arranged in a circumferential array. The first claw is provided in two parts, and the two first claws are respectively fixedly installed on the two oppositely arranged claw blocks; The second claw, there are two of them, and the two second claws are slidably mounted on two other oppositely arranged claw blocks; An adjusting bolt, which is rotatably mounted on the locking block; An adjusting screw hole is provided in the second jaw along the sliding direction of the second jaw, and the adjusting bolt is threaded into the corresponding adjusting screw hole.

2. The square tube clamp for laser cutting according to claim 1, characterized in that: It also includes a synchronizing rod, which is a polygonal columnar rod. The adjusting bolt has a polygonal columnar hole with the same shape as the synchronizing rod, and the adjusting screw hole is a through hole.

3. A square tube clamp for laser cutting according to claim 2, characterized in that: The synchronizing rod is L-shaped.

4. A square tube clamp for laser cutting according to claim 3, characterized in that: The card block is equipped with a scale.

5. A square tube clamp for laser cutting according to claim 1, characterized in that: The second claw includes a mounting part installed on the card block. A U-shaped component is fixedly connected to one end of the mounting part away from the card block. Rollers are rotatably mounted on both ends of the open side of the U-shaped component. The first claw and the second claw have the same structure.

6. A square tube clamp for laser cutting according to claim 1, characterized in that: The end face of the card block is provided with a sliding groove, and the second card claw is installed in the sliding groove.

7. A square tube clamp for laser cutting according to claim 6, characterized in that: The sliding groove is provided with convex rails on both sides, and the second claw has a corresponding rail groove on its side.

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