Double-clamping-position device for laser cutting machine
By designing a double-clamping device for the laser cutting machine and utilizing a linear drive and transmission gear system, a secure clamping of heavy or long workpieces is achieved, solving the problem of poor cutting accuracy caused by gravity deformation and improving cutting accuracy and clamping reliability.
Patent Information
- Application Number
- CN202422841385.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-21
AI Technical Summary
When existing laser cutting machines cut heavy or long square tubes, the square tubes deform due to their own gravity, resulting in poor cutting accuracy.
A double-clamping device for a laser cutting machine is designed, which includes a frame, a first and a second workpiece clamping device, and utilizes a linear drive and a transmission gear system to clamp the workpiece through the first and second workpiece clamping devices, and combines a limit ring and an expansion component to achieve stable clamping.
It effectively reduces the deformation of the workpiece during the cutting process, improves cutting accuracy, ensures that both ends of the workpiece are fixed, and improves the clamping reliability.
Smart Images
Figure CN223406217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser cutting machines, in particular to a double-positioning device for laser cutting machines. Background Art
[0002] A laser cutting machine uses a laser beam emitted from a laser source to focus into a high-power-density laser beam through an optical system. The laser beam irradiates the surface of the workpiece, causing it to reach its melting or boiling point. Simultaneously, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the beam and the workpiece move relative to each other, a slit is eventually formed in the material, achieving the purpose of cutting. In existing technology, when cutting heavier or longer square tubes, after one end of the square tube is clamped, it deforms under the influence of its own gravity, changing from a straight tube to an arc-shaped tube. This causes the position of the cut hole to shift, resulting in poor precision. This requires further improvement. Utility Model Content
[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a double-clamping device for a laser cutting machine.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A double-positioning device for a laser cutting machine is designed, comprising a frame, a first linear drive is provided on the upper end face of the frame, a laser cutting head for cutting is provided on the first linear drive, a control box is provided on the upper end face of the frame, a second linear drive is provided on one side of the upper end face of the frame, a first workpiece position is provided on the second linear drive, a second workpiece position is provided on the other side of the upper end face of the frame, a transmission gear is provided on the second workpiece position, a drive motor is provided on the upper end face of the frame, the drive motor engages the transmission gear through gears, and the workpiece to be cut is clamped between the first workpiece position and the second workpiece position.
[0006] Preferably, the first workpiece positioning device comprises a linear motor, a connecting rod is connected to the linear motor, and a limiting ring is coaxially provided on the outer wall of the connecting rod.
[0007] Preferably, the connecting rod is a two-section structure, and the two sections are connected by a connecting sleeve.
[0008] Preferably, the second workpiece clamp includes a telescopic rod, a sleeve is sleeved on the outer wall of the telescopic rod, an expansion component is provided at the end of the sleeve, the abutment rod is inserted into the expansion component, and the limiting ring is clamped on the outer wall of the expansion component.
[0009] Preferably, a screw hole is provided on the outer wall of the sleeve, a fastening screw is threadedly connected in the screw hole, and the bottom of the fastening screw abuts against the outer wall of the telescopic rod.
[0010] Preferably, the expansion component includes a pair of metal rings, and a plurality of spring sheets are connected between the pair of metal rings.
[0011] Preferably, the outer wall of the telescopic rod is fastened to a limit ring by screws.
[0012] The double-positioning device for a laser cutting machine proposed in this utility model has the following beneficial effects:
[0013] 1. Set the first workpiece clamp and the second workpiece clamp to fix the workpiece at both ends, which is suitable for fixing long or heavy workpieces, reducing the deformation caused by the workpiece's own weight during cutting, and improving the accuracy of the workpiece after cutting;
[0014] 2. The abutment rod in the first workpiece position is inserted into the end of the sleeve in the second workpiece position, causing the expansion component to collide. At this time, the spring piece abuts the inner wall of the workpiece, effectively fixing the workpiece internally and improving the clamping reliability of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural diagram of a double-positioning device for a laser cutting machine proposed in the present invention;
[0016] Figure 2 This is an enlarged view of the structure of part A of a double-positioning device for a laser cutting machine proposed in the present invention;
[0017] Figure 3 This is a schematic diagram of the sleeve structure of a double-positioning device for a laser cutting machine proposed in the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the expanded component of the double-clamping device for a laser cutting machine proposed by the utility model after expansion.
[0019] In the figure: 1 frame, 2 control box, 3 first linear drive, 4 first workpiece clamp, 5 second linear drive, 6 abutment rod, 7 limit ring, 8 mounting groove, 9 spring piece, 10 screw hole, 11 transmission gear, 12 laser cutting head, 13 connecting rod, 14 sleeve, 15 drive motor, 16 connecting sleeve, 17 telescopic rod, 18 second workpiece clamp, 19 expansion component. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0021] Reference Figure 1A double-positioning device for a laser cutting machine includes a frame 1, a first linear drive 3 is provided on the upper end surface of the frame 1, a laser cutting head 12 for cutting is provided on the first linear drive 3, a control box 2 is provided on the upper end surface of the frame 1, a second linear drive 5 is provided on one side of the upper end surface of the frame 1, a first workpiece position 4 is provided on the second linear drive 5, a second workpiece position 18 is provided on the other side of the upper end surface of the frame 1, a transmission gear 11 is provided on the second workpiece position 18, a drive motor 15 is provided on the upper end surface of the frame 1, and the drive motor 15 engages the transmission gear 11 through gear meshing, and the workpiece to be cut is clamped between the first workpiece position 4 and the second workpiece position 18.
[0022] Reference Figure 1 、 2 The first workpiece clamping position 4 includes a linear motor, a connecting rod 13 is connected to the linear motor, a limiting ring 7 is coaxially arranged on the outer wall of the connecting rod 13, and the connecting rod 13 is a two-section structure. The two-section structure is convenient for replacing abutting rods of different diameters to adapt to workpieces of different calibers. The two-section structures are connected by a connecting sleeve 16.
[0023] Reference Figure 2 、 3 The second workpiece clamping position 18 includes a telescopic rod 17, and the outer wall of the telescopic rod 17 is sleeved with a sleeve 14. The telescopic rod 17 is arranged to cooperate with the sleeve 14 to adjust the length to adapt to workpieces of different lengths. The end of the sleeve 14 is provided with an expansion component 19, the abutment rod 6 is inserted into the expansion component 19, and the limit ring 7 is clamped on the outer wall of the expansion component 19. The outer wall of the sleeve 14 is provided with a screw hole 10, and the screw hole 10 is threadedly connected to the fastening screw. The bottom of the fastening screw abuts the outer wall of the telescopic rod 17, and the expansion component 19 includes a pair of metal rings. A plurality of spring pieces 9 are connected between the pair of metal rings. The set spring pieces 9 can abut the inner wall of the workpiece after deformation to achieve internal fixation of the workpiece. The outer wall of the telescopic rod 17 is fastened to the limit ring by screws.
[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A double-positioning device for a laser cutting machine, comprising a frame (1), a first linear drive (3) provided on the upper end surface of the frame (1), a laser cutting head (12) for cutting provided on the first linear drive (3), and a control box (2) provided on the upper end surface of the frame (1), characterized in that: A second linear drive (5) is provided on one side of the upper end surface of the frame (1), a first workpiece clamping position (4) is provided on the second linear drive (5), a second workpiece clamping position (18) is provided on the other side of the upper end surface of the frame (1), a transmission gear (11) is provided on the second workpiece clamping position (18), a driving motor (15) is provided on the upper end surface of the frame (1), the driving motor (15) engages the transmission gear (11) through a gear, and a workpiece to be cut is clamped between the first workpiece clamping position (4) and the second workpiece clamping position (18).
2. The double-positioning device for a laser cutting machine according to claim 1, characterized in that: The first workpiece clamping device (4) comprises a linear motor, a connecting rod (13) is connected to the linear motor, and a limiting ring (7) is coaxially arranged on the outer wall of the connecting rod (13).
3. The double-positioning device for a laser cutting machine according to claim 2, characterized in that: The connecting rod (13) is a two-section structure, and the two sections are connected via a connecting sleeve (16).
4. The double-positioning device for a laser cutting machine according to claim 1, characterized in that: The second workpiece clamping position (18) includes a telescopic rod (17), a sleeve (14) is sleeved on the outer wall of the telescopic rod (17), an expansion component (19) is provided at the end of the sleeve (14), the abutment rod (6) is inserted into the expansion component (19), and the limiting ring (7) is clamped on the outer wall of the expansion component (19).
5. The double-positioning device for a laser cutting machine according to claim 4, characterized in that: The outer wall of the sleeve (14) is provided with a screw hole (10), a fastening screw is threadedly connected in the screw hole (10), and the bottom of the fastening screw abuts against the outer wall of the telescopic rod (17).
6. The double-positioning device for a laser cutting machine according to claim 4, characterized in that: The expansion component (19) comprises a pair of metal rings, and a plurality of spring sheets (9) are connected between the pair of metal rings.
7. The double-positioning device for a laser cutting machine according to claim 5, characterized in that: The outer wall of the telescopic rod (17) is fastened to the limiting ring by screws.