Rotating disc type light spot shaping five-axis laser processing equipment

Abstract

The utility model discloses rotating disc type light spot shaping five-axis laser processing equipment. Comprising a base, a support vertically connected to the base, a laser optimizing mechanism installed at the top end of the support, a to-be-machined product bearing and moving assembly located below the support and installed on the top face of the base, and a light spot machining mechanism installed on the front face of the support and located above the to-be-machined product bearing and moving assembly. The laser optimizing mechanism is composed of a laser, a beam expanding lens, a first reflecting mirror and a light spot shaping rotating disc. The five-axis linkage laser processing device integrates a light spot shaping and laser optimizing function and a five-axis linkage laser processing function, can automatically switch the light beam shaping mirror in a rotating disc mode, saves the time for manually replacing and debugging the shaping mirror, carries out refined product laser processing under the five-axis linkage function, improves the processing quality and the processing efficiency of products, and reduces the production cost. The method is suitable for the fields of scientific research, medicine and material processing.

Description

Technical Field

[0001] The utility model relates to the field of five-axis laser processing facilities, in particular to a turntable type spot shaping five-axis laser processing equipment. Background Art

[0002] Laser processing equipment is widely used in fields such as scientific research or material processing. It can perform laser cutting processing on parts and workpieces, and can depict preset cutting tracks on parts and workpieces and perform precise laser cutting. In traditional laser processing equipment, only a single beam shaping mirror is equipped or the function of spot shaping is basically not involved. In laser processing equipment equipped with a single beam shaping mirror, the single beam shaping mirror is often inconvenient to replace and debug, the manual debugging time is long, and the efficiency is low. In addition, due to the limitations of optical processes and debugging processes, it is impossible to install multiple sets of beam shaping mirrors in the laser processing equipment at one time, which makes it difficult for the products to be processed to achieve good laser processing effects, and the product processing quality is poor. Utility Model Content

[0003] The utility model aims to provide a turntable-type spot shaping five-axis laser processing equipment to solve the problem of inconvenient replacement and debugging of a single beam shaping mirror and low efficiency proposed in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turntable-type spot shaping five-axis laser processing equipment, comprising a base, a bracket vertically connected to the base, a laser optimization mechanism installed on the top of the bracket, a product-to-be-processed carrying moving assembly located below the bracket and installed on the top surface of the base, and a spot processing mechanism installed on the front of the bracket and located above the product-to-be-processed carrying moving assembly; the product-to-be-processed carrying moving assembly comprises a Y-axis moving part, an X-axis moving part installed on the Y-axis moving part, an A / C-axis rotating table connected to the X-axis moving part, a carrier installed on the A / C-axis rotating table for carrying the product to be processed, and a grating scale sensor and an accordion cover located on the front of the X-axis moving part; the A / C-axis rotating table comprises a rotating table fixing seat, and an A rotating axis and a C rotating axis installed above the rotating table fixing seat, the C rotating axis is located on the A rotating axis, and the carrier is arranged on the C rotating axis;

[0005] The laser optimization mechanism is composed of a laser, a beam expander, a first reflector and a light spot shaping turntable, wherein the light spot shaping turntable comprises a rotating motor, a turntable body mounted on the shaft of the rotating motor, and beam shaping mirrors annularly distributed on the top surface of the turntable body, wherein at least one group of beam shaping mirrors is provided, and the first reflector is located on the left side of the beam expander, and the light spot shaping turntable is located in front of the first reflector;

[0006] The light spot processing mechanism includes a Z-axis moving part vertically installed on the front side of the bracket, and a camera assembly and a galvanometer assembly installed on the movable end of the Z-axis moving part. A light source assembly is installed on the right side directly below the camera assembly, a field lens is installed on the left side of the camera assembly, a No. 4 reflector is provided on the left back of the field lens, a No. 3 reflector is provided above the No. 4 reflector, a No. 2 reflector is provided on the left back of the No. 3 reflector, and the No. 2 reflector faces the No. 1 reflector.

[0007] Preferably, the Y-axis moving part and the X-axis moving part both use linear motors, the Z-axis moving part uses a lead screw and a servo motor, the Y-axis moving part is provided with a set of slide rails, the X-axis moving part is placed horizontally above the Y-axis moving part, and an X-axis mounting seat is provided on the movable slider of the X-axis moving part, the X-axis mounting seat is used to carry the A / C-axis rotating table, a drag chain is provided on the left side of the Y-axis moving part, and the top surface of the drag chain is connected to the X-axis moving part.

[0008] Preferably, an adsorption cavity is provided above the carrier, and adsorption holes are arranged in the adsorption cavity.

[0009] Preferably, the light source assembly is used to provide suitable photographing light for the camera assembly, and a dust hood is installed on the left bottom surface of the light source assembly, and the dust hood is located below the field lens.

[0010] Preferably, the bracket is composed of a left column, a right column, and a crossbeam placed horizontally above the left column and the right column, and a plurality of mounting grooves are arranged above the crossbeam, and the mounting grooves are used to stably mount the laser or the spot shaping turntable.

[0011] The beneficial effects of the utility model are as follows: the utility model integrates the laser function of spot shaping optimization and the five-axis linkage laser processing function, and can rely on the spot shaping turntable and a plurality of groups of beam shaping mirrors to automatically switch the beam shaping mirrors in a turntable manner, so as to save the time of manual replacement and debugging of the shaping mirrors, and with the cooperation of the Y-axis moving part, the X-axis moving part, the Z-axis moving part and the A / C-axis rotating table, the position of the product to be processed on the carrier can be quickly adjusted to facilitate refined product laser processing, which greatly improves the processing quality and efficiency of the product, and is suitable for scientific research, medicine, material processing and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural stereogram of the turntable-type spot shaping five-axis laser processing equipment of the utility model;

[0013] Figure 2 It is an enlarged schematic diagram of a local structure of the utility model;

[0014] Figure 3 This is a structural stereogram of the light spot shaping turntable of the utility model;

[0015] Figure 4It is a structural stereogram of the A / C axis rotating platform of the utility model.

[0016] In the figure: 1 laser, 2 beam expander, 3 No. 1 reflector, 4 spot shaping turntable, 401 rotating motor, 402 turntable body, 403 beam shaping mirror, 5 No. 2 reflector, 6 left column, 7 base, 8 Y-axis moving part, 9 drag chain, 10 X-axis mounting seat, 11 grating scale sensor, 12 accordion cover, 13 X-axis moving part, 14A / C-axis rotating table, 1401 rotating table fixing seat, 1402C rotating axis, 1403A rotating axis, 1404 carrier, 15 right column, 16 No. 3 reflector, 17 No. 4 reflector, 18 field mirror, 19 dust cover, 20 light source assembly, 21 camera assembly, 22 galvanometer assembly, 23 Z-axis moving part, 24 crossbeam. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4 , which provides a technical solution for the utility model, a turntable-type spot shaping five-axis laser processing equipment, including a base 7, a bracket vertically connected to the base 7, a laser optimization mechanism installed on the top of the bracket, a product to be processed carrying moving component located below the bracket and installed on the top surface of the base 7, and a spot processing mechanism installed on the front of the bracket and located above the product to be processed carrying moving component; wherein the product to be processed carrying moving component mentioned includes a Y-axis moving part 8, an X-axis moving part 13 installed on the Y-axis moving part 8, an A / C-axis rotating table 14 connected to the X-axis moving part 13, and a laser processing mechanism installed on the A / C-axis rotating table 14 for carrying the product to be processed. The product's carrier 1404, and the grating scale sensor 11 and accordion cover 12 located in front of the X-axis moving part 13, the grating scale sensor 11 is a measurement feedback device that works based on the optical principle of the grating, and the grating scale is often used in the closed-loop servo system of CNC machine tools, and can be used to detect linear displacement or angular displacement. Its measurement output signal is a digital pulse, which has the characteristics of a large detection range, high detection accuracy, and fast response speed. The grating scale consists of two parts: a scale grating and a grating reading head; the accordion cover 12 is used to protect the slide rails, lead screw motors, and grating scale sensors 11 of the Y-axis moving part 8 and the X-axis moving part 13, and prevent dust and other foreign objects from entering the moving parts.

[0019] It should be noted that the A / C-axis rotating table 14 mentioned includes a rotating table fixing seat 1401, and an A rotating shaft 1403 and a C rotating shaft 1402 installed above the rotating table fixing seat 1401, the C rotating shaft 1402 is located on the A rotating shaft 1403, and the carrier 1404 is arranged on the C rotating shaft 1402; wherein, an adsorption chamber is opened above the carrier 1404, and adsorption holes are provided in the adsorption chamber, and the adsorption chamber can be customized and used according to different shapes of products to be processed, and the A rotating shaft 1403 and the C rotating shaft 1402 can both be driven by a DD motor, that is, the A rotating shaft 1403 provides A-direction rotational movement to allow the carrier 1404 to rotate in the A direction, and the C rotating shaft 1402 provides C-direction rotational movement to allow the carrier 1404 to rotate in the C direction; the A / C-axis rotating table 14 can fix the carrier 1404 and can perform rotational movement in both A / C directions.

[0020] In this embodiment, the laser optimization mechanism mentioned is composed of a laser 1, a beam expander 2, a first reflector 3 and a spot shaping turntable 4, wherein the spot shaping turntable 4 comprises a rotating motor 401, a turntable body 402 mounted on the shaft of the rotating motor 401, and beam shaping mirrors 403 distributed in an annular manner on the top surface of the turntable body 402, wherein at least one group of beam shaping mirrors 403 is provided, and the first reflector 3 is located on the left side of the beam expander 2, and the spot shaping turntable 4 is located in front of the first reflector 3, and a positioning hole is provided on the turntable body 402 to facilitate the installation of the beam shaping mirror 403; wherein the rotating motor 401 can perform a rotating motion as a dividing plate to rotate the beam shaping mirror 403 required for processing to the optical path; wherein, The function of the beam shaping mirror 403 is to convert the Gaussian beam generated by the laser 1 into a flat-top light, so as to obtain a flat-top light spot with uniform energy distribution, steep boundaries and a specific shape on the working surface. The spot size is generally in the range of tens of microns to hundreds of microns. The spot shape can be circular, rectangular, square, straight, elliptical or customized according to actual needs. The flat-top light spot is very important in precision machining. When used in laser machining, it can prevent overexposure or underexposure of specific areas of the product to be processed. The flat-top light spot formed specifically creates a sharp transition zone to clearly distinguish the boundary between the processed or unprocessed areas. The beam shaping mirror 403 can be set to but not limited to two groups, three groups, four groups, five groups and six groups.

[0021] It should be noted that the turntable body 402 is not limited to installing only two, three, four, five or six groups of beam shaping mirrors 403. As long as the size of the equipment and the turntable are adjusted, more beam shaping mirrors 403 can be designed according to actual needs, and the installation position is very flexible.

[0022] Among them, the C rotating axis 1402 and the A rotating axis 1403 of the A / C axis rotating table 14 drive the product on the carrier 1404, and cooperate with the Y-axis moving part 8, the X-axis moving part 13, and the Z-axis moving part 23 to perform laser cutting trajectory movement, thereby realizing five-axis linkage; the laser 1 mentioned uses but is not limited to a femtosecond laser.

[0023] In this embodiment, the light spot processing mechanism mentioned includes a Z-axis moving part 23 vertically installed on the front side of the bracket, and a camera assembly 21 and a galvanometer assembly 22 installed at the movable end of the Z-axis moving part 23. A light source assembly 20 is installed directly below the camera assembly 21, wherein a field lens 18 is installed on the left side of the camera assembly 21, a fourth reflector 17 is provided on the left side of the field lens 18, a third reflector 16 is provided above the fourth reflector 17, a second reflector 5 is provided on the left side of the third reflector 16, and the second reflector 5 faces the first reflector 3. The light source assembly 20 Used to provide suitable photographic light for the camera component 21, a dust hood 19 is installed on the left bottom surface of the light source component 20, and the dust hood 19 is located below the field lens 18. The galvanometer component 22 reflects the light beam emitted by the laser 1, and enters the field lens 18 after changing direction to form the required cutting trajectory to adapt to the product to be processed. The camera component 21 can shoot the positioning point of the product to be processed in real time, and transmit the data to the main controller or computer of the turntable-type spot shaping five-axis laser processing equipment; the field lens 18 can focus the light beam into a tiny flat-top spot.

[0024] In this embodiment, the Y-axis moving part 8, the X-axis moving part 13 and the Z-axis moving part 23 all adopt but are not limited to linear motors, as well as screws and servo motors. The Y-axis moving part 8 is provided with a set of slide rails, the X-axis moving part 13 is horizontally placed above the two sets of Y-axis moving parts 8, and the movable slider of the X-axis moving part 13 is provided with an X-axis mounting seat 10, and the X-axis mounting seat 10 is used to carry the A / C-axis rotating table 14. A drag chain 9 is provided on the left side of the Y-axis moving part 8, and the top surface of the drag chain 9 is connected to the X-axis moving part 13; wherein, the drag chain 9 is a device for binding cables or wires to facilitate their rotation and movement. The drag chain 9 looks like a tank chain and is composed of a large number of unit links. The links can rotate freely. Each section of the drag chain 9 can be designed as an openable structure for easy installation and maintenance. It has low noise, wear resistance and high-speed movement during movement.

[0025] The bracket is composed of a left column 6, a right column 15, and a crossbeam 24 placed horizontally above the left column 6 and the right column 15. A plurality of mounting grooves are arranged above the crossbeam 24, and the mounting grooves are used to stably mount the laser 1 or the spot shaping turntable 4.

[0026] In the turntable-type spot shaping five-axis laser processing equipment, the product to be processed is manually placed on the carrier 1404, the adsorption chamber in the carrier 1404 firmly adsorbs the product to be processed, the Y-axis moving part 8 and the X-axis moving part 13 operate to transport the product to be processed to the processing position, at this time the Z-axis moving part 23 descends, the light source component 20 provides appropriate light, the camera component 21 takes pictures of the marking points on the product to be processed, the main controller or computer records and organizes the data, and after the data processing is completed, after the laser 1 emits light, the laser is expanded and collimated by the beam expander 2, the laser enters the No. 1 reflector 3, and after being reflected by the No. 1 reflector 3, the laser enters the beam shaping mirror 403 in the spot shaping turntable 4 for shaping; The shaped light beam passes through the second reflector 5, the third reflector 16 and the fourth reflector 17 respectively and enters the galvanometer assembly 22 and the field lens 18. The light beam passes through the field lens 18 to focus into the required flat-top light, and the flat-top light hits the product to be processed. Wherever it reaches, the material on the product to be processed is burned by high temperature and vaporized instantly, and the generated smoke and dust is taken away by the dust hood 19; when the product to be processed is processed, the laser 1 stops emitting light; the Z-axis moving part 23 drives the field lens 18, the galvanometer assembly 22, the light source assembly 20, and the camera assembly 21 to rise and reach the origin photoelectric switch position; at the same time, the Y-axis moving part 8 and the X-axis moving part 13 transport the product to the unloading position; the carrier 1404 automatically turns off the vacuum, and the product is taken away manually.

[0027] Among them, the working principle of spot shaping involves the use of various optical elements and technologies to adjust the phase, amplitude or distribution of the laser beam to achieve precise control of the spot shape, size and energy distribution; spot shaping is used to optimize the laser spot during laser processing such as cutting, drilling and engraving to improve processing quality and efficiency.

[0028] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be understood that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. In the utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; among them, there are many ways of detachable installation, for example, it can be through the method of plug-in and snap-fit, for example, through the method of bolt connection, etc.

[0030] 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 turntable-type spot shaping five-axis laser processing equipment, comprising a base, a bracket vertically connected to the base, a laser optimization mechanism installed on the top of the bracket, a product carrying moving assembly to be processed located below the bracket and installed on the top surface of the base, and a spot processing mechanism installed on the front of the bracket and located above the product carrying moving assembly to be processed; characterized in that: The product-to-be-processed carrying moving assembly comprises a Y-axis moving part, an X-axis moving part mounted on the Y-axis moving part, an A / C-axis rotating table connected to the X-axis moving part, a carrier mounted on the A / C-axis rotating table for carrying the product to be processed, and a grating scale sensor and an accordion cover located in front of the X-axis moving part; the A / C-axis rotating table comprises a rotating table fixing seat, and an A rotating axis and a C rotating axis installed above the rotating table fixing seat, the C rotating axis is located on the A rotating axis, and the carrier is arranged on the C rotating axis; The laser optimization mechanism is composed of a laser, a beam expander, a first reflector and a light spot shaping turntable, wherein the light spot shaping turntable comprises a rotating motor, a turntable body mounted on the shaft of the rotating motor, and beam shaping mirrors annularly distributed on the top surface of the turntable body, wherein at least one group of beam shaping mirrors is provided, and the first reflector is located on the left side of the beam expander, and the light spot shaping turntable is located in front of the first reflector; The light spot processing mechanism includes a Z-axis moving part vertically installed on the front side of the bracket, and a camera assembly and a galvanometer assembly installed on the movable end of the Z-axis moving part. A light source assembly is installed on the right side directly below the camera assembly, a field lens is installed on the left side of the camera assembly, a No. 4 reflector is provided on the left back of the field lens, a No. 3 reflector is provided above the No. 4 reflector, a No. 2 reflector is provided on the left back of the No. 3 reflector, and the No. 2 reflector faces the No. 1 reflector.

2. The five-axis laser processing equipment with a rotating disk-type spot shaping according to claim 1 is characterized in that: The Y-axis moving part and the X-axis moving part both use linear motors, the Z-axis moving part uses a lead screw and a servo motor, the Y-axis moving part is provided with a set of slide rails, the X-axis moving part is horizontally placed above the Y-axis moving part, and an X-axis mounting seat is provided on the movable slider of the X-axis moving part, the X-axis mounting seat is used to carry the A / C-axis rotating table, a drag chain is provided on the left side of the Y-axis moving part, and the top surface of the drag chain is connected to the X-axis moving part.

3. The five-axis laser processing equipment with a rotating disk-type spot shaping according to claim 1 is characterized in that: An adsorption cavity is provided above the carrier, and adsorption holes are arranged in the adsorption cavity.

4. The five-axis laser processing equipment with a rotating disk-type spot shaping according to claim 1 is characterized in that: The light source assembly is used to provide suitable photographing light for the camera assembly. A dust cover is installed on the left bottom surface of the light source assembly, and the dust cover is located below the field lens.

5. The five-axis laser processing equipment with a rotating disk-type spot shaping according to claim 1 is characterized in that: The bracket is composed of a left column, a right column, and a crossbeam placed horizontally above the left column and the right column. A plurality of mounting grooves are arranged above the crossbeam, and the mounting grooves are used to stably mount the laser or the spot shaping turntable.

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