Laser processing equipment

Abstract

The utility model provides laser processing equipment which is characterized in that the laser processing equipment comprises a positioning device, the positioning device comprises a placing table and a clamping assembly, the clamping assembly comprises a first clamping plate, a second clamping plate and a driving piece, the placing table is used for placing a workpiece, a fixing position is arranged on the placing table, and the first clamping plate is used for clamping the workpiece; the driving piece is used for driving the first clamping plate and the second clamping plate to get close to each other, so that the workpiece is clamped on the fixing position; and the laser processing device is used for processing the workpiece on the fixed position. According to the laser processing equipment disclosed by the utility model, the processing efficiency of the laser processing equipment can be improved while the processing precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe processing, in particular to laser processing equipment. Background Art

[0002] Today, with modern technology changing with each passing day, the application of laser drilling technology is gradually becoming an important force in the precision manufacturing industry. Compared with traditional mechanical drilling methods, laser drilling has brought revolutionary changes to industrial manufacturing with its unique advantages. First of all, laser drilling, with its unparalleled precision, makes the edges of the processed apertures smooth and burr-free, greatly improving the quality of the product. During the mechanical drilling process, burrs are often generated on the edges of the apertures due to the friction between the tool and the workpiece, which not only affects the aesthetics of the product, but may also have a negative impact on the product performance. Laser drilling, with its precise beam control, ensures the smoothness and precision of the aperture. Secondly, laser drilling technology will not make the workpiece yellow during the processing process, thus ensuring the original color and quality of the workpiece. In traditional mechanical drilling, the high temperature generated by friction often causes the surface of the workpiece to oxidize or discolor, affecting the overall quality of the product. Laser drilling, with its fast and efficient characteristics, avoids this problem. In addition, laser drilling also greatly reduces the generation of waste slag and wastewater, playing a positive role in environmental protection. The traditional mechanical drilling process will produce a lot of waste residue and wastewater, which not only increases the processing cost, but also pollutes the environment. Laser drilling, with its clean and environmentally friendly characteristics, provides new possibilities for green manufacturing.

[0003] However, laser drilling technology also faces some challenges in practical applications. In order to ensure the accuracy of processing, the workpiece needs to be accurately positioned. Although the traditional processing method can accurately position the workpiece, the disassembly and installation process of the workpiece is cumbersome and time-consuming, which affects the processing efficiency. Therefore, a laser drilling device is needed that can ensure the positioning of the workpiece and has high processing efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a laser processing device, which can improve the processing efficiency of the laser processing device while improving the processing accuracy.

[0005] According to the laser processing equipment of the first aspect of the utility model, the positioning device includes: a positioning device, the positioning device includes a placement table and a clamping assembly, the clamping assembly includes a first clamping plate, a second clamping plate and a driving member, the placement table is used to place a workpiece, a fixed position is provided on the placement table, and the driving member is used to drive the first clamping plate and the second clamping plate to approach each other so that the workpiece is clamped at the fixed position; a laser processing device, the laser processing device is used to process the workpiece at the fixed position.

[0006] The laser processing equipment according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: the workpiece is processed by the laser processing device, and laser processing is a contactless processing method without processing stress. Therefore, the workpiece can be directly placed on the placement table for processing, avoiding the tedious steps of clamping the workpiece with a fixture, thereby improving the processing efficiency of the workpiece. The position ensures the processing accuracy of the workpiece, so a clamping assembly is set to clamp and position the workpiece. The purpose is to adjust the position of the workpiece on the placement table. Therefore, there is no need for a large clamping force between the clamping assembly and the workpiece, so the workpiece can be clamped and positioned at a faster speed. The cooperation of the clamping assembly and the placement platform improves the efficiency of placement and the positioning accuracy of the workpiece, thereby improving the processing accuracy and processing efficiency of the workpiece.

[0007] According to some embodiments of the present utility model, the positioning device includes a plurality of the clamping components, a plurality of the fixing positions are arranged on the placement table, and the plurality of the clamping components and the plurality of the fixing positions correspond one to one.

[0008] According to some embodiments of the utility model, the laser processing equipment includes a plurality of the positioning devices, a switching component and a processing position, the switching component is used to switch the positioning device located at the processing position, and the laser processing device is used to process the workpiece on the positioning device located at the processing position.

[0009] According to some embodiments of the utility model, it also includes a loading device and an unloading device, wherein the loading device is used to place the workpiece on the placing table, and the unloading device is used to remove the workpiece on the placing table after being processed by the laser processing device.

[0010] According to some embodiments of the utility model, the laser processing equipment also includes a base plate, on which two positioning devices are arranged, the switching member is used to drive the base plate to move to switch the positioning device on the processing position, the unloading device is used to remove the workpiece on the positioning device that leaves the processing position, and the loading device is used to place the workpiece on the positioning device before the positioning device enters the processing position.

[0011] According to some embodiments of the utility model, the clamping assemblies are spaced apart along a first direction, and the driving member drives the first clamping plate and / or the second clamping plate to move along a second direction, and the first direction and the second direction are perpendicular to each other and to the vertical direction.

[0012] According to some embodiments of the utility model, the first clamping plate includes a first abutting surface and a second abutting surface, both of which are used to abut against the workpiece, the normal of the first abutting surface and the normal of the second abutting surface are both perpendicular to the vertical direction, and the angle between the normal of the first abutting surface and the normal of the second abutting surface is greater than 0° and less than 180°.

[0013] According to some embodiments of the utility model, a negative pressure port is opened on the placement table, and the negative pressure port is used to adsorb the workpiece placed on the placement table.

[0014] According to some embodiments of the utility model, a material dividing device is further included, on which the workpiece is placed, and the loading device is used to place the workpiece on the material dividing device onto the positioning device, and the material dividing device is used to vibrate the workpiece placed on the loading device to disperse the workpiece.

[0015] According to some embodiments of the present invention, a sensing device is further included, and when the workpiece is located in the fixed position, the workpiece triggers the sensing device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of multiple positioning devices in some embodiments of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a positioning device in some embodiments of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the clamping assembly in some embodiments of the utility model.

[0020] Figure Number:

[0021] 1. Positioning device; 11. Placing table; 12. Clamping assembly; 121. First clamping plate; 122. Second clamping plate; 123. Driving member; 124. First abutting surface; 125. Second abutting surface; 2. Bottom plate; 3. Workpiece. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] The principle of laser cutting is to use a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature and evaporates to form holes. As the beam moves on the material, these holes will continuously form a very narrow slit, thus completing the cutting of the material.

[0027] During the laser cutting process, the laser beam is focused into a small spot through a focusing lens and projected onto the metal surface, reaching a high power density at the focus. This causes the irradiated part of the material to quickly heat up to the vaporization temperature, forming holes. Subsequently, the beam and the material move linearly relative to each other, causing these holes to continuously form a narrow slit.

[0028] At the same time, in order to ensure the quality of laser cutting, the nozzle will spray auxiliary gas from the direction parallel to the beam to blow away the slag. In addition, driven by the servo motor, the cutting head will move along a predetermined route to cut workpieces of various shapes.

[0029] The advantage of laser cutting is that since the laser beam can be focused into a very small light spot, the heat effect on the cutting edge is very small, so the workpiece is basically not deformed and the processing quality is better. In addition, laser cutting is a non-contact processing method, there is no processing stress, the workpiece will not be mechanically deformed, and the tool will not wear. Therefore, manufacturers do not need to worry about tool conversion. Laser cutting is also a CNC processing method, which makes it gradually become a mainstream process in the field of metal cutting, and with the development of technology, its application will become more extensive.

[0030] In general, the principle of laser cutting is to use a high-power density laser beam to form holes on the surface of the material, and connect these holes into a narrow slit through the movement of the beam, thereby achieving cutting of the material.

[0031] The laser processing equipment in the first embodiment of the utility model includes: a positioning device 1 and a laser processing device, the positioning device 1 includes a placement table 11 and a clamping assembly 12, the clamping assembly 12 includes a first clamping plate 121, a second clamping plate 122 and a driving member 123, the placement table 11 is used to place the workpiece 3, and a fixed position is set on the placement table 11, and the driving member 123 is used to drive the first clamping plate 121 and the second clamping plate 122 to approach each other so that the workpiece 3 is clamped in the fixed position. Before processing the workpiece 3, the workpiece 3 is placed on the placement platform. When the workpiece 3 is placed on the placement platform, it is not necessary to accurately position the workpiece 3, and it is not necessary to firmly clamp the workpiece 3, so the workpiece 3 can be quickly placed on the placement platform. After the workpiece 3 is placed on the placement platform, it is clamped by the first clamping plate 121 and the second clamping plate 122 in the clamping assembly 12, and the workpiece 3 is fixed in the fixed position. It should be noted that when the first clamping plate 121 and the second clamping plate 122 clamp the workpiece 3, it is only to move the workpiece 3 to a fixed position so that the positioning of the workpiece 3 is more accurate, and there is no need to firmly fix the workpiece 3. Therefore, the force to drive the first clamping plate 121 and the second clamping plate 122 does not need to be too large, and the first clamping plate 121 and the second clamping plate 122 can be quickly driven to move. Therefore, the positioning speed of the workpiece 3 through the clamping assembly 12 is also very fast. Therefore, the efficiency of positioning the workpiece 3 on the positioning device 1 is very high, which greatly improves the overall processing efficiency of the workpiece 3. The laser processing device is used to process the workpiece 3 in the fixed position. After the workpiece 3 is accurately positioned on the positioning device 1, the laser is emitted by the laser processing device and irradiated on the workpiece 3 to process the workpiece 3.

[0032] When vertically drilling a hole in the workpiece 3 , the light path emitted by the laser processing device is arranged in the vertical direction, and the irradiation path is along the edge of the hole, so that a through hole is processed in the workpiece 3 .

[0033] According to some embodiments of the utility model, the positioning device 1 includes a plurality of clamping components 12, and a plurality of fixed positions are provided on the placement table 11, and the plurality of clamping components 12 correspond to the plurality of fixed positions one by one. When the workpiece 3 is placed on the placement table 11, the laser processing device needs to stop working, and the frequent start and stop of the laser processing device will affect the processing efficiency of the workpiece 3. Therefore, the workpiece 3 is processed after placing a plurality of workpieces 3 on a positioning device 1. That is, a plurality of workpieces 3 are placed on the placement table 11, and the workpieces 3 are clamped one by one in the fixed positions by a plurality of clamping components 12. For example, four fixed positions are provided on the placement table 11, and four workpieces 3 are placed on the placement table 11 at the same time, and the workpieces 3 are fixed in the four fixed positions respectively by four clamping components 12. After the four workpieces 3 are positioned, the four workpieces 3 are processed by the laser processing device.

[0034] According to some embodiments of the utility model, the laser processing equipment includes a plurality of positioning devices 1, a switching member and a processing position, the switching member is used to switch the positioning device 1 located at the processing position, and the laser processing device is used to process the workpiece 3 on the positioning device 1 located at the processing position. Specifically, after the workpiece 3 is placed on the positioning device 1, the switching member drives the positioning device 1 to the processing position, and at the same time drives the positioning device 1 that originally completed the processing process at the processing position away from the processing position, so that the workpiece 3 can be processed more quickly, further improving the processing efficiency of the workpiece 3.

[0035] According to some embodiments of the present invention, a loading device and a unloading device are further included, wherein the loading device is used to place the workpiece 3 on the placement table 11, and the unloading device is used to remove the workpiece 3 processed by the laser processing device from the placement table 11. By providing a loading shaft and an unloading device to replace manual loading and unloading, not only the processing efficiency of the workpiece 3 is improved, but also the labor cost is reduced.

[0036] According to some embodiments of the utility model, the laser processing equipment also includes a base plate 2, on which two positioning devices 1 are arranged, a switching member is used to drive the base plate 2 to move so as to switch the positioning device 1 on the processing position, a material unloading device is used to remove the workpiece 3 on the positioning device 1 that has left the processing position, and a material loading device is used to place the workpiece 3 on the positioning device 1 before the positioning device 1 enters the processing position. Specifically, the two material loading devices are arranged on the base plate 2 at intervals along the first direction and at intervals along the second direction. The driving member 123 drives the base plate 2 to reciprocate along the second direction, so that the positioning device 1 on the processing position is cyclically switched. Since the positioning devices 1 are arranged at intervals along the second direction, the reciprocating motion along the second direction can realize the switching of the positioning devices 1 on the processing position, and the positioning devices 1 are also arranged at intervals along the first direction to avoid interference between the loading device and the unloading device and the laser processing device that is processing the workpiece 3 during operation. Further, the clamping assembly 12 is arranged at intervals along the first direction, and the driving member 123 drives the first clamping plate 121 and / or the second clamping plate 122 to move along the second direction, and the first direction and the second direction are perpendicular to each other and are perpendicular to the vertical direction. The arrangement direction of the clamping assembly 12 and the moving direction of the first clamping plate 121 and the second clamping plate 122 are perpendicular to each other, so that the first clamping plate 121 and the second clamping plate 122 will not collide with other components when moving, and the arrangement of the clamping assembly 12 is more compact. After the arrangement of the clamping assembly 12 is more compact, the setting of the fixed position on the placement table 11 can also be more compact, and the workpiece 3 can be placed on the placement table 11 more conveniently and quickly. When the first direction and the second direction are perpendicular to each other, all the clamping assemblies 12 can be driven simultaneously by a driving member 123. When driving the clamping assembly 12, the driving member 123 can drive the first clamp plate 121 to move to adjust the relative distance between the first clamp plate 121 and the second clamp plate 122, and can also drive the second clamp plate 122 to move to adjust the distance between the first clamp plate 121 and the second clamp plate 122. At the same time, the first clamp plate 121 and the second clamp plate 122 can be driven to move simultaneously to adjust the distance between the first clamp plate 121 and the second clamp plate 122.

[0037] According to some embodiments of the utility model, the first clamping plate 121 includes a first abutting surface 124 and a second abutting surface 125, the first abutting surface 124 and the second abutting surface 125 are both used to abut against the workpiece 3, the normal of the first abutting surface 124 and the normal of the second abutting surface 125 are both perpendicular to the vertical direction, and the angle between the normal of the first abutting surface 124 and the normal of the second abutting surface 125 is greater than 0° and less than 180°. In order to more accurately fix the workpiece 3 in the fixed position, two abutting surfaces that abut against the workpiece 3 are set on the first clamping plate 121, and the workpiece 3 is pressed by the first abutting surface 124 and the second abutting surface 125, and the workpiece 3 is pressed on the second clamping plate 122, so that the workpiece 3 is more accurately fixed in the fixed position. At the same time, two abutment surfaces can also be set on the second clamping plate 122, which can make the workpiece 3 positioned more accurately and can also make the workpiece 3 smoother when positioned, thereby reducing the friction between the first clamping plate and the second clamping plate 122 and the workpiece 3, and avoiding friction damage to the workpiece 3 caused by the first clamping plate 121 and the second clamping plate 122 during the positioning of the workpiece 3.

[0038] According to some embodiments of the utility model, a negative pressure port is provided on the placement table 11, and the negative pressure port is used to absorb the workpiece 3 placed on the placement table 11. When the workpiece 3 is placed on the placement table 11 and before the workpiece 3 is positioned, the workpiece 3 may fall from the placement table 11 when affected by external forces such as vibration, so that the clamping assembly 12 cannot position the workpiece 3 to a fixed position. Therefore, a negative pressure port is provided on the placement table 11, and the negative pressure generated by the negative pressure port is used to absorb the workpiece 3 on the placement table 11, so that the workpiece 3 will not fall from the placement table 11, so that the clamping assembly 12 can position the workpiece 3 more quickly.

[0039] According to some embodiments of the utility model, a material dividing device is further included, on which a workpiece 3 is placed, a loading device is used to place the workpiece 3 on the material dividing device onto the positioning device 1, and the material dividing device is used to vibrate the workpiece 3 placed on the loading device to disperse the workpiece 3. When the workpiece 3 is loaded by the loading device, a manipulator is usually used to clamp the workpiece 3. When the workpiece 3 is too dense, it is difficult for the manipulator to identify a single workpiece 3 and clamp a single workpiece 3. Therefore, the workpiece 3 is dispersed by the material dividing device for the loading device. The specific material dividing device can adopt a vibration plate, and the vibration of the vibration plate drives the workpiece 3 to vibrate, so that the workpiece 3 is dispersed in the vibration, and the posture of the workpiece 3 can also be adjusted by the vibration plate, so that the processed surface of the workpiece 3 faces upward, which is convenient for the manipulator to grab the workpiece 3.

[0040] According to some embodiments of the present invention, a sensing device is further included, and when the workpiece 3 is located at the fixed position, the workpiece 3 triggers the sensing device. In order to ensure that the workpiece 3 is in the fixed position when processing the workpiece 3, the position of the workpiece 3 is sensed by the sensing device to ensure that the workpiece 3 is positioned in the fixed position by the clamping assembly 12, so as to avoid processing when the workpiece 3 is not positioned in the fixed position.

[0041] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Laser processing equipment, characterized in that include: A positioning device, the positioning device comprises a placement table and a clamping assembly, the clamping assembly comprises a first clamping plate, a second clamping plate and a driving member, the placement table is used to place a workpiece, a fixed position is provided on the placement table, and the driving member is used to drive the first clamping plate and the second clamping plate to approach each other so that the workpiece is clamped at the fixed position; A laser processing device is used to process the workpiece on the fixed position.

2. The laser processing equipment according to claim 1, characterized in that: The positioning device includes a plurality of the clamping components, and a plurality of the fixing positions are arranged on the placement table, and the plurality of the clamping components correspond to the plurality of the fixing positions one by one.

3. The laser processing equipment according to claim 1, characterized in that: The laser processing equipment includes a plurality of the positioning devices, a switching member and a processing position, wherein the switching member is used to switch the positioning device located at the processing position, and the laser processing device is used to process the workpiece on the positioning device located at the processing position.

4. The laser processing equipment according to claim 3, characterized in that: It also includes a loading device and an unloading device, wherein the loading device is used to place the workpiece on the placement table, and the unloading device is used to remove the workpiece on the placement table after being processed by the laser processing device.

5. The laser processing equipment according to claim 4, characterized in that: The laser processing equipment also includes a base plate, on which two positioning devices are arranged, the switching member is used to drive the base plate to move to switch the positioning device on the processing position, the unloading device is used to remove the workpiece on the positioning device that leaves the processing position, and the loading device is used to place the workpiece on the positioning device before the positioning device enters the processing position.

6. The laser processing equipment according to claim 2, characterized in that: The clamping assemblies are arranged at intervals along a first direction, and the driving member drives the first clamping plate and / or the second clamping plate to move along a second direction. The first direction and the second direction are perpendicular to each other and are both perpendicular to the vertical direction.

7. The laser processing equipment according to claim 1, characterized in that: The first clamping plate includes a first abutting surface and a second abutting surface, both of which are used to abut against the workpiece, the normal of the first abutting surface and the normal of the second abutting surface are both perpendicular to the vertical direction, and the angle between the normal of the first abutting surface and the normal of the second abutting surface is greater than 0° and less than 180°.

8. The laser processing equipment according to claim 1, characterized in that: The placement table is provided with a negative pressure port, and the negative pressure port is used for adsorbing the workpiece placed on the placement table.

9. The laser processing equipment according to claim 5, characterized in that: It also includes a material dividing device, on which the workpiece is placed, and the loading device is used to place the workpiece on the material dividing device onto the positioning device, and the material dividing device is used to vibrate the workpiece placed on the loading device to disperse the workpiece.

10. The laser processing equipment according to claim 1, characterized in that: It also includes a sensing device, and when the workpiece is located at the fixed position, the workpiece triggers the sensing device.

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