A laser cutting device suitable for multi-hole processing

Abstract

The invention discloses a laser cutting device suitable for multi-hole processing, which relates to the technical field of laser cutting and comprises: a base; a turntable assembly, which is arranged on the base, and one side of the turntable assembly is a fixed end, and the other side is a rotating end, and the rotating end can rotate around the X direction; at least three feeding assemblies distributed at circumferential intervals, and the feeding assembly is arranged at the rotating end of the turntable assembly, and is used to feed the workpiece along the X direction; a laser cutting assembly, which is arranged on the base and has a three-dimensional driving end, and a laser cutting head is fixed on the three-dimensional driving end; wherein the feeding assembly at least comprises a driver and a feeding wheel arranged at the output end of the driver, and a positioning assembly, which is arranged at the fixed end of the turntable assembly, and the positioning assembly is used to position the workpiece based on the drilled hole after the workpiece completes feeding or rotation, so as to prevent it from generating micro-deflection during the feeding movement, resulting in processing errors.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a laser cutting device suitable for multi-hole processing. Background Art

[0002] With the rapid development of modern manufacturing, porous pipe fittings have been widely used in many fields such as aerospace, automobile manufacturing, medical equipment, petrochemicals, etc. The holes on these pipe fittings not only need to be accurately distributed, but also require high-quality machining surfaces and low machining errors to meet the functional and performance requirements of the products.

[0003] However, the existing technology has some obvious shortcomings in multi-hole processing. Traditional multi-hole processing methods, such as drilling and milling, are often affected by factors such as tool wear, workpiece positioning error and machine tool accuracy, resulting in insufficient accuracy of the processed holes and low quality of the processed surface.

[0004] In addition, traditional processing methods usually require each hole to be positioned and processed separately, which not only increases processing time but also reduces production efficiency. In addition, multiple clamping and positioning may also cause workpiece deformation, further affecting processing accuracy.

[0005] Although automation technology has been widely used in the manufacturing industry in recent years, the automation of traditional multi-hole processing equipment still needs to be improved. Manual operation not only increases the uncertainty and error in the processing process, but also limits the further improvement of production efficiency and product quality.

[0006] Therefore, it is necessary to provide a laser cutting device suitable for multi-hole processing to solve the above problems. Summary of the invention

[0007] In order to solve the above problems, the present invention provides the following technical solutions: a laser cutting device suitable for multi-hole processing, comprising:

[0008] Pedestal;

[0009] A turntable assembly is disposed on the base, and one side of the turntable assembly is a fixed end, and the other side is a rotating end, and the rotating end can rotate around the X direction;

[0010] At least three feeding assemblies spaced apart in the circumferential direction, the feeding assemblies being arranged at the rotating end of the turntable assembly and being used for feeding the workpiece along the X direction;

[0011] A positioning assembly, which is disposed at a fixed end of the turntable assembly and is used to position the workpiece based on the drilled hole after the workpiece has been fed or rotated;

[0012] A laser cutting assembly is disposed on the base and has a three-dimensional driving end, on which a laser cutting head is fixed;

[0013] Wherein, the feeding assembly at least includes a driver and a feeding wheel arranged at the output end of the driver.

[0014] Preferably, the feed assembly also includes a mounting plate and a first elastic telescopic rod, wherein the mounting plate is fixed to the rotating end of the turntable assembly, the first elastic telescopic rod is fixed to the side of the mounting plate close to the workpiece, and the other end of the first elastic telescopic rod is connected to the driver.

[0015] Preferably, four second elastic telescopic rods distributed in a rectangular array are hinged between the mounting plate and the driver.

[0016] Preferably, the turntable assembly comprises:

[0017] A transmission bin is fixed on the base, and a base cylinder is fixed on the transmission bin;

[0018] A worm, which is rotatably disposed in the transmission bin and driven by a motor;

[0019] A worm wheel, one side of which is fixed with a rotating cylinder, the rotating cylinder is rotatably connected with the base cylinder and extends out of the base cylinder, and the worm wheel is meshed with the worm;

[0020] Wherein, the rotating drum serves as the rotating end of the turntable assembly.

[0021] Preferably, the positioning component comprises:

[0022] A circular track fixed to a fixed end of the turntable assembly;

[0023] At least one sliding seat, which is slidably arranged on the circular track;

[0024] The telescopic positioning mechanism is arranged on the slide seat and is used to position the workpiece based on the drilled hole after the workpiece is rotated.

[0025] Preferably, a positioning bolt is threadedly connected to the slide seat for positioning the slide seat on the circular track.

[0026] Preferably, the telescopic positioning mechanism comprises:

[0027] A slide cylinder is fixed to one side of the slide seat, and an air inlet and outlet are provided on the side of the slide cylinder for connecting to an external air control device;

[0028] A slide rod, one end of which slides into the slide cylinder and is connected to the piston, and the other end extends out of the slide cylinder, an elastic rod is half-embedded in the slide rod, and the end of the elastic rod away from the piston extends out of the slide rod and is connected to a positioning cone;

[0029] The return spring is sleeved on the outside of the slide rod, and one end of the return spring is connected to the slide cylinder, and the other end is connected to the piston.

[0030] Preferably, a positioning rod is fixed to one end of the positioning cone close to the workpiece.

[0031] Preferably, a grinding sheet is attached to the outer surface of the positioning frustum.

[0032] Preferably, a vibration motor is embedded in the slide cylinder, and one end of the vibration motor is connected to a vibration rod;

[0033] The elastic rod is provided with a transmission groove for accommodating the vibration rod.

[0034] Compared with the prior art, the present invention provides a laser cutting device suitable for multi-hole processing, which has the following beneficial effects:

[0035] The present invention utilizes laser cutting to process the hole body, which can improve the quality of the processed surface, and can improve the degree of automation by cooperating with a feeding component, a turntable component and a positioning component.

[0036] The feeding assembly provided in the present invention can feed the workpiece at intervals to ensure the continuity of processing, and the turntable assembly provided in cooperation with the feeding assembly can also drive the workpiece to rotate to realize multi-hole processing.

[0037] After the workpiece is fed or rotated, the positioning assembly can quickly position the workpiece based on the position of the drilled hole. This positioning method not only prevents the workpiece from being slightly deflected during feeding and rotation, but also ensures processing accuracy and avoids processing errors caused by inaccurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the main structure of a laser cutting device suitable for multi-hole processing;

[0039] Figure 2 It is a side view structural schematic diagram of a laser cutting device suitable for multi-hole processing;

[0040] Figure 3 It is a schematic diagram of the top view structure of a laser cutting device suitable for multi-hole processing;

[0041] Figure 4 for Figure 3 AA cross-sectional structural diagram;

[0042] Figure 5 A schematic diagram of the three-dimensional structure of a laser cutting device suitable for multi-hole processing Figure 1 ;

[0043] Figure 6 A schematic diagram of the three-dimensional structure of a laser cutting device suitable for multi-hole processing Figure 2 ;

[0044] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at point A;

[0045] Figure 8 It is a structural schematic diagram of a positioning component in a laser cutting device suitable for multi-hole processing;

[0046] In the figure: 1. base; 2. turntable assembly; 3. feed assembly; 4. positioning assembly; 5. laser cutting assembly; 21. base cylinder; 22. transmission chamber; 23. worm; 24. worm wheel; 25. rotating cylinder; 26. motor; 31. mounting plate; 32. first elastic telescopic rod; 33. driver; 34. feed wheel; 35. second elastic telescopic rod; 41. circular track; 42. slide seat; 43. slide cylinder; 44. slide rod; 45. piston; 46. air inlet and outlet; 47. reset spring; 48. positioning cone; 49. grinding sheet; 410. positioning rod; 411. elastic rod; 412. vibration motor; 413. vibration rod; 414. transmission groove. DETAILED DESCRIPTION

[0047] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0048] Please refer to Figure 1-Figure 8 In an embodiment of the present invention, a laser cutting device suitable for multi-hole processing is provided, comprising:

[0049] Base 1;

[0050] A turntable assembly 2 is disposed on the base 1, and one side of the turntable assembly 2 is a fixed end, and the other side is a rotating end, and the rotating end can rotate around the X direction;

[0051] At least three feeding assemblies 3 distributed at intervals in the circumferential direction, wherein the feeding assemblies 3 are arranged at the rotating end of the turntable assembly 2 and are used for feeding the workpiece along the X direction;

[0052] A positioning assembly 4, which is arranged at a fixed end of the turntable assembly 2, and the positioning assembly 4 is used to position the workpiece based on the drilled hole after the workpiece is fed or rotated;

[0053] A laser cutting assembly 5, which is disposed on the base 1 and has a three-dimensional driving end, on which a laser cutting head is fixed;

[0054] The feeding assembly 3 at least includes a driver 33 and a feeding wheel 34 arranged at the output end of the driver 33 .

[0055] It should be explained that in this embodiment, the workpiece to be processed is a pipe, and the laser cutting component 5 is used to laser cut the pipe into holes, and the final product is: there are multiple groups of holes distributed axially on the surface of the pipe, and each group has multiple holes distributed circumferentially.

[0056] Based on this, in implementation, the first group of holes on the pipe fitting is accurately machined by a machining center, and then the pipe fitting with the first group of holes (hereinafter referred to as the pre-treated pipe fitting) is sent to the base 1 for processing. Based on this, the processing includes the following steps:

[0057] The feeding assembly 3 clamps the pre-processed pipe and drives it to feed along the X direction at intervals;

[0058] The positioning component 4 positions the pre-processed pipe based on the first group of holes to prevent it from slightly deflecting during the feeding movement, which may cause processing errors;

[0059] The laser cutting head, in cooperation with the three-dimensional driving end, completes the cutting of one of the second group of hole bodies of the pre-treated pipe fitting;

[0060] The positioning assembly 4 releases the positioning of the pre-treatment pipe, and the rotating end of the turntable assembly 2 drives the feed assembly 3 to rotate an angle. At this time, the positioning assembly 4 again positions the pre-treatment pipe based on the first group of holes to prevent it from slightly deflecting during the rotation process.

[0061] The laser cutting head, in cooperation with the three-dimensional driving end, completes the cutting of another hole body in the second group of hole bodies of the pre-treated pipe fitting;

[0062] By analogy, after the cutting of the second group of holes is completed, the cutting of the third group of holes and the fourth group of holes is continued.

[0063] That is to say, in this embodiment, the feeding assembly 3 is capable of feeding the workpiece at intervals to ensure the continuity of processing, and the turntable assembly 2 is capable of cooperating with the feeding assembly 3 to drive the workpiece to rotate and realize multi-hole processing. It is worth mentioning that in this embodiment, the positioning assembly 4 is capable of positioning the workpiece based on the drilled holes after the workpiece is fed or rotated to prevent micro-deflection during the feeding and rotation process, which may cause processing errors.

[0064] In this embodiment, the feed assembly 3 also includes a mounting plate 31 and a first elastic telescopic rod 32, wherein the mounting plate 31 is fixed to the rotating end of the turntable assembly 2, and the first elastic telescopic rod 32 is fixed on the side of the mounting plate 31 close to the workpiece, and the other end of the first elastic telescopic rod 32 is connected to the driver 33.

[0065] In addition, four second elastic telescopic rods 35 distributed in a rectangular array are hinged between the mounting plate 31 and the driver 33 .

[0066] The first elastic telescopic rod 32 and the second elastic telescopic rod 35 not only provide the necessary support, but also enhance the stability of the entire feed assembly through their elastic properties, which helps to ensure smooth operation during the processing and reduce processing errors caused by instability.

[0067] In this embodiment, the turntable assembly 2 includes:

[0068] A transmission chamber 22 is fixed on the base 1, and a base cylinder 21 is fixed on the transmission chamber 22;

[0069] A worm 23 is rotatably disposed in the transmission compartment 22 and driven by a motor 26;

[0070] A worm wheel 24, one side of which is fixed with a rotating cylinder 25, the rotating cylinder 25 is rotatably connected to the base cylinder 21 and extends out of the base cylinder 21, and the worm wheel 24 is meshed with the worm 23;

[0071] The rotating drum 25 serves as the rotating end of the turntable assembly 2 .

[0072] The worm-worm gear transmission has a large transmission ratio, which can achieve a large torque transmission in a small space, thereby improving the power density of the entire system, and the worm-worm gear transmission has a self-locking characteristic, which means that when the worm stops rotating, the worm wheel (and the rotating drum 25 connected thereto) will be difficult to be driven by external force to rotate in the opposite direction. This characteristic enhances the stability of the turntable assembly 2 under load.

[0073] In this embodiment, the positioning component 4 includes:

[0074] A circular track 41, which is fixed to the fixed end of the turntable assembly 2;

[0075] At least one sliding seat 42, which is slidably disposed on the circular track 41;

[0076] The telescopic positioning mechanism is arranged on the slide 42 and is used to position the workpiece based on the drilled hole after the workpiece is rotated.

[0077] The slide seat 42 is threadedly connected with a positioning bolt for positioning the slide seat 42 on the circular track 41 .

[0078] Wherein, the telescopic positioning mechanism comprises:

[0079] A slide cylinder 43 is fixed to one side of the slide seat 42. An air inlet and outlet 46 is provided on the side of the slide cylinder 43 for connecting to an external air control device.

[0080] A slide rod 44, one end of which slides into the slide cylinder 43 and is connected to the piston 45, and the other end of which extends out of the slide cylinder 43. An elastic rod 411 is half-embedded in the slide rod 44, and one end of the elastic rod 411 away from the piston 45 extends out of the slide rod 44 and is connected to a positioning cone 48;

[0081] The return spring 47 is sleeved on the outside of the slide rod 44 , and one end of the return spring 47 is connected to the slide cylinder 43 , and the other end of the return spring 47 is connected to the piston 45 .

[0082] The positioning assembly 4 realizes flexible sliding adjustment on the turntable assembly 2 through the combination of the circular track 41 and the slide seat 42, thereby improving the flexibility and adaptability of the entire system.

[0083] In this embodiment, a positioning rod 410 is fixed to one end of the positioning cone 48 close to the workpiece, so that the positioning rod 410 can be used to achieve a guiding function, so that the positioning cone 48 can be more easily matched with the hole body.

[0084] In this embodiment, a grinding sheet 49 is attached to the outer surface of the positioning cone 48. By attaching the grinding sheet 49 to the outer surface of the positioning cone 48, when the positioning cone 48 is inserted into the hole for positioning, the grinding sheet 49 will come into contact with the inner wall of the hole. This contact not only realizes the positioning function, but also performs a grinding process at the same time.

[0085] Furthermore, although laser cutting can efficiently form a hole body, the inner wall of the hole body may have a certain degree of roughness or burrs. The grinding process of the grinding sheet 49 can effectively reduce the roughness of the inner wall of the hole body, remove burrs, and improve the quality and surface finish of the hole body.

[0086] In the traditional processing flow, laser cutting may require separate grinding after the hole is formed. However, by attaching a grinding sheet to the positioning cone, cutting and grinding are integrated, saving processing time and cost.

[0087] Furthermore, a vibration motor 412 is embedded in the slide cylinder 43, and one end of the vibration motor 412 is connected to a vibration rod 413;

[0088] The elastic rod 411 is provided with a transmission slot 414 for accommodating the vibration rod 413 .

[0089] That is, in this embodiment, a vibration motor 412 is embedded in the slide 43 and connected to a vibration rod 413. The innovation of this design is that it uses the vibration principle to assist the positioning process. When the vibration motor 412 is working, it will generate tiny vibrations through the vibration rod 413, and these vibrations can be transmitted to the positioning cone 48.

[0090] Specifically, vibration can help the positioning cone 48 better adapt to the shape and size of the hole body, especially when there are slight unevenness or dirt on the surface of the hole body, vibration can promote a closer contact between the positioning cone 48 and the hole body, thereby improving the stability and accuracy of positioning.

[0091] The vibration can also reduce the friction resistance of the positioning cone 48 during the insertion into the hole, making the positioning process smoother.

[0092] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser cutting device suitable for multi-hole processing, characterized in that: include: A base (1); a turntable assembly (2) disposed on the base (1), wherein one side of the turntable assembly (2) is a fixed end and the other side is a rotating end, wherein the rotating end is capable of rotating about an X direction; at least three feeding assemblies (3) distributed at circumferential intervals, wherein the feeding assemblies (3) are disposed at the rotating end of the turntable assembly (2) and are used to feed a workpiece along the X direction; a positioning assembly (4) disposed at the fixed end of the turntable assembly (2), wherein the positioning assembly (4) is used to position the workpiece based on a drilled hole after the workpiece has been fed or rotated; a laser cutting assembly (5) disposed on the base (1) and having a three-dimensional driving end, wherein a laser cutting head is fixed to the three-dimensional driving end; wherein the feeding assembly (3) comprises at least a driver (33) and a feeding wheel (34) disposed at an output end of the driver (33); The positioning assembly (4) comprises: a circular track (41) fixed to a fixed end of the turntable assembly (2); at least one slide seat (42) slidably disposed on the circular track (41); and a telescopic positioning mechanism disposed on the slide seat (42) for positioning the workpiece based on the drilled hole after the workpiece is rotated. The telescopic positioning mechanism comprises: a slide cylinder (43) fixed to one side of the slide seat (42), the side of the slide cylinder (43) being provided with an air inlet and outlet (46) for connecting to an external air control device; a slide rod (44) having one end slidingly extending into the slide cylinder (43) and connected to a piston (45), and the other end extending out of the slide cylinder (43), an elastic rod (411) being half-embedded in the slide rod (44), and the end of the elastic rod (411) away from the piston (45) extending out of the slide rod (44) and connected to a positioning cone (48); a return spring (47) being sleeved on the outside of the slide rod (44), and having one end connected to the slide cylinder (43) and the other end connected to the piston (45); A positioning rod (410) is fixed to one end of the positioning cone (48) close to the workpiece; A vibration motor (412) is also embedded in the slide cylinder (43), and one end of the vibration motor (412) is connected to a vibration rod (413); a transmission groove (414) for accommodating the vibration rod (413) is provided in the elastic rod (411).

2. The laser cutting device suitable for multi-hole processing according to claim 1, characterized in that: The feeding assembly (3) further comprises a mounting plate (31) and a first elastic telescopic rod (32), wherein the mounting plate (31) is fixed to the rotating end of the turntable assembly (2), the first elastic telescopic rod (32) is fixed to a side of the mounting plate (31) close to the workpiece, and the other end of the first elastic telescopic rod (32) is connected to the driver (33).

3. The laser cutting device suitable for multi-hole processing according to claim 2, characterized in that: Four second elastic telescopic rods (35) distributed in a rectangular array are also hinged between the mounting plate (31) and the driver (33).

4. The laser cutting device suitable for multi-hole processing according to claim 1, characterized in that: The turntable assembly (2) comprises: a transmission chamber (22) fixed on the base (1), and a base cylinder (21) fixed on the transmission chamber (22); a worm (23) rotatably arranged in the transmission chamber (22) and driven by a motor (26); a worm wheel (24) having a rotating cylinder (25) fixed on one side thereof, the rotating cylinder (25) being rotatably connected to the base cylinder (21) and extending out of the base cylinder (21), and the worm wheel (24) being meshed with the worm (23); wherein the rotating cylinder (25) serves as a rotating end of the turntable assembly (2).

5. The laser cutting device suitable for multi-hole processing according to claim 1, characterized in that: The slide seat (42) is threadedly connected with a positioning bolt for positioning the slide seat (42) on the circular track (41).

6. The laser cutting device suitable for multi-hole processing according to claim 1, characterized in that: A grinding sheet (49) is attached to the outer surface of the positioning cone (48).

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