Clamp for laser cutting

Abstract

The utility model discloses a clamp for laser cutting, which relates to the technical field of laser cutting and comprises a clamp guide rail, two groups of clamping mechanisms are movably arranged at the upper end of the clamp guide rail, and auxiliary fixing mechanisms are inserted into the clamping mechanisms. In order to solve the problem that the rotating speeds of the two sides cannot be guaranteed to be completely synchronous during turning and cutting, the circular pipes of different sizes are clamped by matching a clamp guide rail and a clamping mechanism and adjusting the distance between clamping sliding blocks on the two sides, and the effect of clamping the outer sides of the circular pipes is better than that of clamping the two ends of the circular pipes; and meanwhile, a single-side motor is adopted for overturning cutting to guarantee complete synchronization of the rotating speed, through arrangement of an auxiliary fixing mechanism, eccentric rotation of an eccentric shaft can further pressurize and fix the round pipe, the eccentric shaft widens the pressurizing range, dislocation of the broken position of the pipeline is prevented, and the cut tubular material is convenient to take down through automatic opening and closing of a clamping mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a clamp for laser cutting. Background Art

[0002] There are many types of cutting machines. With the rapid development of science and technology, the precision requirements of various facilities and buildings are getting higher and higher, and the processing accuracy requirements of pipes are also getting higher and higher. The use of laser cutting is very common. During the cutting process, some clamps are needed to position and clamp the pipes.

[0003] A fixture for a laser cutting machine with publication number CN220575050U comprises a base plate, a mounting groove is provided on the front surface of the base plate, a rack is fixedly installed on the inner side wall of the mounting groove, a movable sleeve is slidably connected to the outer side of the base plate, a motor is fixedly installed on the front surface of the movable sleeve, a gear meshing with the rack is fixedly installed on the output shaft end of the motor, a movable plate is fixedly installed on the top of the movable sleeve, a fixed plate is fixedly installed on the top of the base plate, an AC motor is fixedly installed on the right side of the movable plate and the left side of the fixed plate, a mounting plate is fixedly installed on the output shaft end of the AC motor, a T-shaped slide groove is provided on the side of the movable plate and the fixed plate close to the mounting plate, and a T-shaped slider is fixedly installed on the side of the mounting plate close to the T-shaped slide groove. Although this fixture can clamp tubular materials, after laser cutting, the disconnection of the pipeline is prone to dislocation, making it difficult to remove the cut tubular material. At the same time, different motors are used on both sides of the flipping cutting, and the rotation speed cannot be guaranteed to be completely synchronized.

[0004] In view of the above problems, a laser cutting fixture is proposed. Utility Model Content

[0005] The utility model aims to provide a clamp for laser cutting, which solves the problem that although the existing clamp in the background technology can clamp tubular materials, after laser cutting, the pipe disconnection is prone to misalignment, making it difficult to remove the cut tubular materials, and different motors are used on both sides of the flip cutting, and the rotation speed cannot be guaranteed to be completely synchronized.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for laser cutting, comprising two groups of clamping mechanisms movably arranged on the upper end of the clamp guide rail, an auxiliary fixing mechanism is inserted into the clamping mechanism, and the auxiliary fixing mechanism is provided with two groups that are mirror-symmetrical about the clamping mechanism, the clamp guide rail comprises a guide rail block, a sliding frame slidably engaged in the guide rail block, a side frame connected to the guide rail block, one side of the side frame is connected to a drive motor, the clamping mechanism comprises a rotating block, a group of rotating blocks on one side is connected to the drive motor, the clamping mechanism comprises a bidirectional motor, a double-sided reverse threaded rod connected to the bidirectional motor, a clamping slider threadedly sleeved on the double-sided reverse threaded rod, and the auxiliary fixing mechanism comprises an eccentric shaft inserted into the clamping slider.

[0007] Preferably, a T-shaped slot is provided in the guide rail block, and the lower end of the sliding frame is provided as a T-shaped block that slides and engages with the T-shaped slot, and fits against a horizontal plate provided at the upper end of the guide rail block.

[0008] Preferably, the clamping mechanism further comprises a rubber frame connected to the inside of the clamping slider, the rubber frame is made of rubber material, and a rubber groove is formed on the rubber frame.

[0009] Preferably, the upper end of the clamping slider is arranged as a top plate, and the sleeve connection between the clamping slider and the double-sided reverse threaded rods is arranged as a clamping bottom.

[0010] Preferably, the auxiliary fixing mechanism also includes a side connecting block fixedly connected to one side of the locking bottom, the side connecting blocks are provided in two groups, a shifting block is inserted and sleeved between the two groups of side connecting blocks, and one end of the shifting block is connected to an auxiliary cylinder.

[0011] Preferably, the auxiliary fixing mechanism further comprises a sliding rack fixedly connected to the shifting block, the sliding rack is arranged to move horizontally, and the sliding rack and the engaging bottom are slidably fitted to each other.

[0012] Preferably, the auxiliary fixing mechanism further comprises a rotating tooth which is meshed with the sliding rack, and the rotating tooth is inserted through the clamping sliding block.

[0013] Preferably, the eccentric shaft and the center of the rotating tooth are staggered with each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a fixture for laser cutting. Through the matching arrangement of the fixture guide rail and the clamping mechanism, the sliding frame can be clamped and adjusted according to the width of the round tube. The bidirectional motor drives the clamping slide blocks on both sides to move in opposite directions along the reverse threaded rods on both sides. The distance between the clamping slide blocks on both sides is adjusted to achieve the clamping of round tubes of different sizes. The clamping effect of the outer side of the round tube is better than that of the clamping at both ends of the round tube. At the same time, the flip cutting adopts a single-side motor and the other end is movable to ensure that the rotation speed is completely synchronized, which solves the problem that the existing fixture flip cutting adopts different motors on both sides and the rotation speed cannot be guaranteed to be completely synchronized.

[0016] 2. The utility model provides a clamp for laser cutting. Through the setting of an auxiliary fixing mechanism, after the round tube is clamped by the clamping slider, the eccentric rotation of the eccentric shaft can further pressurize and fix the round tube. The eccentric shaft widens the pressurization range, realizes lateral support and extrusion, and prevents misalignment at the pipe disconnection. The automatic opening and closing of the clamping mechanism makes it easy to remove the cut tubular material, which solves the problem that although the existing clamp can clamp the tubular material, the pipe disconnection is prone to misalignment after laser cutting, making it difficult to remove the cut tubular material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 It is a schematic diagram of the overall front view structure of the utility model;

[0019] Figure 3 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 5 It is a side view structural schematic diagram of the sliding frame, the clamping mechanism and the auxiliary fixing mechanism of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the sliding frame, the clamping mechanism and the auxiliary fixing mechanism of the utility model.

[0023] In the figure: 1. clamp guide rail; 11. guide rail block; 111. T-slot; 12. side frame; 13. drive motor; 14. sliding frame; 141. T-block; 142. horizontal plate; 2. clamping mechanism; 21. rotating block; 22. bidirectional motor; 23. double-sided reverse threaded rod; 24. clamping slide block; 241. top plate; 242. engaging bottom; 25. rubber frame; 251. rubber groove; 3. auxiliary fixing mechanism; 31. side connecting block; 32. shifting block; 33. auxiliary cylinder; 34. sliding rack; 35. rotating gear; 36. eccentric shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0026] Combination Figure 1 The utility model is a fixture for laser cutting, comprising a fixture guide rail 1, two groups of clamping mechanisms 2 are movably arranged on the upper end of the fixture guide rail 1, an auxiliary fixing mechanism 3 is inserted into the clamping mechanism 2, and the auxiliary fixing mechanism 3 is provided with two groups of mirror-symmetrical about the clamping mechanism 2, the fixture guide rail 1 comprises a guide rail block 11, a sliding frame 14 slidably engaged in the guide rail block 11, a side frame 12 connected to the guide rail block 11, a driving motor 13 is connected to one side of the side frame 12, the clamping mechanism 2 comprises a rotating block 21, a group of rotating blocks 21 on one side is connected to the driving motor 13, the clamping mechanism 2 comprises a bidirectional motor 22, a bilateral reverse threaded rod 23 arranged through the bidirectional motor 22, a clamping slide block 24 arranged with a threaded sleeve on the bilateral reverse threaded rod 23, and the auxiliary fixing mechanism 3 comprises an eccentric shaft 36 inserted into the clamping slide block 24.

[0027] Specifically, the guide block 11 and the side frame 12 are fixed to each other, and the driving motor 13 is connected to one end of the side frame 12 to realize driving. The sliding frame 14 can be clamped and adjusted according to the width of the round tube. The bidirectional motor 22 drives the clamping sliders 24 on both sides to move in opposite directions along the double-sided reverse threaded rods 23. The distance between the clamping sliders 24 on both sides is adjusted to realize the clamping of round tubes of different sizes. After the round tube is clamped by the clamping sliders 24, the eccentric rotation of the eccentric shaft 36 can further pressurize and fix the round tube. The eccentric shaft 36 widens the pressurization range, realizes lateral support and extrusion, and prevents misalignment at the disconnection point of the pipeline. The automatic opening and closing of the clamping mechanism 2 makes it easy to remove the cut tubular material. At the same time, the flip cutting adopts a single-sided motor and the other end is movable to ensure that the rotation speed is completely synchronized.

[0028] The utility model is further described below in conjunction with embodiments.

[0029] Embodiment 1:

[0030] Combination Figure 2-Figure 5 A T-shaped slot 111 is provided in the guide rail block 11, and the lower end of the sliding frame 14 is provided with a T-shaped block 141 that slides and engages with the T-shaped slot 111, and fits against a horizontal plate 142 provided at the upper end of the guide rail block 11. The T-shaped slot 111 provides a moving guide for the T-shaped block 141, and the horizontal plate 142 is provided at the upper end of the guide rail block 11, and cooperates with the horizontal plate 142 to realize the engagement and fixation in the horizontal position.

[0031] The clamping mechanism 2 also includes a rubber frame 25 connected to the inside of the clamping slider 24. The rubber frame 25 is set to a rubber material. A rubber groove 251 is opened on the rubber frame 25. The rubber material of the rubber frame 25 increases the friction between the rubber frame 25 and the round tube. The distance between the two rubber grooves 251 is reduced to achieve clamping and fixing of the round tube. The three surfaces of the rubber frame 25 are interconnected and fixed to the clamping slider 24, and have good stability.

[0032] The upper end of the clamping slider 24 is set as a top plate 241, and the socket connection between the clamping slider 24 and the double-sided reverse threaded rod 23 is set as a clamping bottom 242. The force direction of the top plate 241 is opposite to that of the eccentric shaft 36. The setting of the top plate 241 reinforces the rubber frame 25. The clamping bottom 242 is threadedly sleeved with the double-sided reverse threaded rod 23, and at the same time, the clamping bottom 242 realizes the connection and fixation of the auxiliary fixing mechanism 3.

[0033] Embodiment 2:

[0034] Combination Figure 6The auxiliary fixing mechanism 3 also includes a side connecting block 31 fixedly connected to one side of the locking bottom 242. The side connecting blocks 31 are provided with two groups. A moving block 32 is inserted and sleeved between the two groups of side connecting blocks 31. One end of the moving block 32 is connected to an auxiliary cylinder 33. The auxiliary cylinder 33 drives the moving block 32 to move between the two groups of side connecting blocks 31, thereby driving the eccentric shaft 36 to adjust.

[0035] The auxiliary fixing mechanism 3 also includes a sliding rack 34 fixedly connected to the shifting block 32. The sliding rack 34 is arranged to move horizontally. The sliding rack 34 and the engaging bottom 242 slide and fit with each other. The engaging bottom 242 supports the sliding rack 34. The sliding rack 34 moves under the drive of the auxiliary cylinder 33 for adjustment.

[0036] The auxiliary fixing mechanism 3 also includes a rotating tooth 35 meshing with the sliding rack 34. The rotating tooth 35 penetrates and is inserted into the clamping slider 24. Due to the meshing arrangement between the sliding rack 34 and the rotating tooth 35, the movement of the sliding rack 34 can drive the rotating tooth 35 to rotate.

[0037] The centers of the eccentric shaft 36 and the rotating teeth 35 are mutually offset. The rotation of the rotating teeth 35 can drive the eccentric shaft 36 to rotate eccentrically. The locking position of the eccentric shaft 36 is adjusted according to the size of the round tube.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for laser cutting, comprising a fixture guide rail (1), characterized in that: The upper end of the clamp guide rail (1) is movably provided with two groups of clamping mechanisms (2), an auxiliary fixing mechanism (3) is inserted into the clamping mechanism (2), and the auxiliary fixing mechanism (3) is provided with two groups that are mirror-symmetrical with respect to the clamping mechanism (2); The clamp guide rail (1) comprises a guide rail block (11), a sliding frame (14) slidably engaged in the guide rail block (11), a side frame (12) connected to the guide rail block (11), one side of the side frame (12) is connected to a drive motor (13), the clamping mechanism (2) comprises a rotating block (21), a group of rotating blocks (21) on one side is connected to the drive motor (13), the clamping mechanism (2) comprises a bidirectional motor (22), a double-sided reverse threaded rod (23) penetrating and connected to the bidirectional motor (22), a clamping slider (24) threadedly sleeved on the double-sided reverse threaded rod (23), and the auxiliary fixing mechanism (3) comprises an eccentric shaft (36) inserted into the clamping slider (24).

2. A laser cutting fixture according to claim 1, characterized in that: The guide rail block (11) is provided with a T-shaped slot (111), and the lower end of the sliding frame (14) is provided with a T-shaped block (141) that slides and engages with the T-shaped slot (111), and is fitted with a horizontal plate (142) provided at the upper end of the guide rail block (11).

3. The laser cutting fixture according to claim 1, characterized in that: The clamping mechanism (2) further comprises a rubber frame (25) connected to the inside of the clamping slider (24); the rubber frame (25) is made of rubber material; and a rubber groove (251) is provided on the rubber frame (25).

4. The laser cutting fixture according to claim 1, characterized in that: The upper end of the clamping slider (24) is configured as a top plate (241), and the sleeve connection between the clamping slider (24) and the double-sided reverse threaded rods (23) is configured as a clamping bottom (242).

5. The laser cutting fixture according to claim 4, characterized in that: The auxiliary fixing mechanism (3) further comprises a side connection block (31) fixedly connected to one side of the locking bottom (242), the side connection blocks (31) being provided in two groups, a shift block (32) being inserted and sleeved between the two groups of the side connection blocks (31), and one end of the shift block (32) being connected to an auxiliary cylinder (33).

6. The laser cutting fixture according to claim 5, characterized in that: The auxiliary fixing mechanism (3) also includes a sliding rack (34) fixedly connected to the shifting block (32); the sliding rack (34) is arranged to move horizontally; and the sliding rack (34) and the engaging bottom (242) are slidably fitted to each other.

7. The laser cutting fixture according to claim 6, characterized in that: The auxiliary fixing mechanism (3) also includes a rotating tooth (35) meshing with the sliding rack (34), and the rotating tooth (35) is inserted through the clamping slide block (24).

8. The laser cutting fixture according to claim 7, characterized in that: The centers of the eccentric shaft (36) and the rotating teeth (35) are arranged to be offset from each other.

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