Equipment for removing burrs through laser

Abstract

The laser deburring equipment comprises a machining table, a laser device and at least two adsorption parts, the adsorption parts are arranged on the machining table and used for adsorbing workpieces to be deburred on the machining table, a distance sensor is arranged between every two adjacent adsorption parts, all the distance sensors are connected with a main controller, and the main controller is connected with the laser device. And the workpiece to be deburred is controlled to be always kept at the preset machining position. Compared with the prior art, the deburring device has the advantages that the adsorption piece is arranged on the machining table, the adsorption force is changed according to the distance, obtained by the distance sensor, between the workpiece to be deburred and the machining table, and therefore the workpiece to be deburred is controlled to be always kept at the preset machining position; and the distance between the workpiece to be deburred and the processing table is consistent, so that the focus of the laser beam is stabilized.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a device for removing burrs from plate-type workpieces by laser. Background Art

[0002] Burrs are irregular metal parts such as sharp corners and rough edges that appear at the transition point of the workpiece surface during metal processing. With the progress of society and the gradual improvement of industrialization and automation levels, customers have higher and higher requirements for product manufacturing accuracy and quality, and the service conditions of products are becoming more and more demanding.

[0003] In order to take into account both the efficiency and quality of burr removal, the applicant has adopted a laser deburring method. The basic principle of laser deburring technology is to utilize the characteristics of high intensity, high energy density, strong focusing and good directionality of laser. The laser beam emitted from the laser passes through an optical device to focus the laser beam into spots of different diameters, and scan the burrs on the parts, so that the burrs are melted, vaporized, and finally removed. It has the advantages of high efficiency and wide application range. For example, the Chinese utility model patent with patent number 201711401934.6 (authorization announcement number CN108115285B) discloses "A laser deburring head device and laser deburring method". The device can focus the laser beam emitted by the laser onto the burrs of the workpiece to be deburred to form a spot to remove the burrs.

[0004] However, the device can only remove burrs from workpieces with stable dimensions. Since large flat thin plate workpieces in the kitchen appliance industry have large areas and various sizes and specifications, the use of conventional laser deburring devices will have the following problems: First, the processing area of ​​each large flat thin plate workpiece is large. When placing the large flat thin plate workpiece on the surface of the processing table, it is easy to have a deviation in verticality from the horizontal plane of the processing table, which will cause the focus of the laser beam to be unable to be stably controlled at the required position; second, the sizes and specifications of large flat thin plate workpieces are diverse. When placing large flat thin plate workpieces of different sizes on the surface of the processing table, the placement positions will also be different. The trajectory of laser deburring is difficult to predict. If the trajectory of laser deburring is reconfirmed for each large flat thin plate workpiece, it will be time-consuming and laborious. Therefore, the laser deburring equipment needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a device that can better remove burrs on the surface of a workpiece to be deburred, especially for removing burrs on large flat thin plate workpieces in the kitchen appliance industry, in view of the above-mentioned current technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: the laser burr removal device includes:

[0007] A processing table provided with a support structure, through which the workpiece to be deburred passes to maintain a preset distance from the processing table; and

[0008] A laser is arranged on the processing table and is used to remove burrs from a workpiece to be deburred; the laser is characterized in that it also includes:

[0009] There are at least two adsorption members, which are arranged on the processing table and are used to adsorb the workpiece to be deburred thereon. A distance sensor is arranged between each adjacent one or more adsorption members, and each distance sensor is connected to the main controller to control the workpiece to be deburred to always remain in the preset processing position.

[0010] Furthermore, the processing table is provided with an air extraction mechanism for adsorbing each of the adsorbents on the processing table, and correspondingly, each of the adsorbents includes a first air extraction port located on the adsorption surface and a second air extraction port located on the tail, and the second air extraction port and the first air extraction port are connected to the air extraction mechanism via an air extraction channel connecting the two. The setting of the air extraction mechanism can extract the air between the workpiece to be deburred and the adsorbent, thereby achieving adsorption of the workpiece to be deburred on the processing table.

[0011] In order to adjust the deviation in verticality between the workpiece to be deburred and the horizontal plane where the processing table is located, from the perspective of structural simplicity, it can be preferably: the adsorbents are arranged in a matrix array, and the exhaust channels located in the same rows and / or columns share one exhaust channel, and also include an adjustment mechanism that can selectively open or close or gradually adjust each second exhaust port on the exhaust channel. For the flatness adjustment of large flat sheet products, the exhaust channels of an adjacent row / column of the part with flatness deviation can be adjusted to change the relative position of the workpiece to be deburred corresponding to the exhaust channel and the distance between the processing table, so as to achieve a relatively simple adjustment of the flatness of large flat sheet products.

[0012] In order to achieve a consistent distance between the workpiece to be deburred and the processing table, preferably, each of the exhaust channels is independently arranged substantially parallel to each other. The independently arranged exhaust channels can realize the individual control of each adsorbent, thereby controlling the distance between the workpiece to be deburred and the processing table in the corresponding area of ​​the adsorbent.

[0013] In order to adjust the position of the laser, preferably, the laser is rotatably mounted on a three-axis mechanism provided on the processing table by means of a rotating mechanism, and can be moved along the X-axis direction, the Y-axis direction and the Z-axis direction by means of the three-axis mechanism. Through the setting of the three-axis mechanism: the laser can be moved in the XY plane where the workpiece to be deburred is located, and in the Z direction perpendicular to the workpiece to be deburred, so as to adjust the moving trajectory of the laser emitted by the laser according to the size of the workpiece to be deburred, thereby meeting the burr removal of the workpiece to be deburred with complex edges.

[0014] Furthermore, the rotation mechanism can rotate at an angle of α, and 0°<α<45°. The angle α is the angle between the line between the laser and the Z axis and the Z axis. When laser removal is performed on burrs of different sizes, the diameter of the laser spot can be controlled by changing the angle α to meet the accuracy of burr removal, while not damaging the appearance of the workpiece to be deburred, thereby improving the quality of burr removal.

[0015] Generally, the kitchen appliance industry has large flat thin plate parts with various sizes and specifications. In order to better identify the location where burrs need to be removed, preferably, a camera sensor is also included. A positioning member for positioning the camera sensor is provided adjacent to the processing table. The positioning member is provided in the installation space surrounded by the three-axis mechanism. The positioning member includes a vertical section perpendicular to the processing table and a horizontal section provided at the top of the vertical section and parallel to the processing table. The camera sensor is provided on the horizontal section so that the camera sensor is arranged facing the processing table. The setting of the camera sensor can identify the contours of workpieces of different sizes to be deburred, so as to assist the laser in removing burrs from the surface of the workpiece.

[0016] In order to fix the workpiece to be deburred at a preset position, preferably, the processing table is provided with a first adjustment unit group adjusted to the preset position along the X direction, and a second adjustment unit group adjusted to the preset position along the Y direction, and the first and second adjustment unit groups include a first adjustment member and a second adjustment member arranged relatively along a predetermined direction, wherein the second adjustment member can move relative to the first adjustment member. The first adjustment unit group and the second adjustment unit group can adjust the position of the second adjustment member according to the contour position input by the camera sensor, so as to fix the workpiece to be deburred between the first adjustment member and the second adjustment member, so that the workpiece to be deburred of the same size will be fixed at the same preset position, and it is only necessary to adjust the laser trajectory when processing workpieces of different sizes to be deburred.

[0017] In order to realize the movement of the second adjusting member, preferably, the processing table is provided with a moving channel arranged along a preset X-axis or Y-axis direction, and the second adjusting member is arranged in the moving channel and can move along the preset direction under the drive of the driving member.

[0018] Furthermore, the driving member is a motor disposed on the lower surface of the processing table, the power output end of the motor is connected to the second adjusting member, and under the limit of the moving channel, the second adjusting member can only translate along the moving channel. This structure can change the progress of the motor according to the contour of the workpiece to be deburred identified by the camera sensor, thereby translating the second adjusting member to position the workpiece to be deburred at a preset position.

[0019] Compared with the prior art, the advantages of the utility model are: an adsorption component is arranged on the processing table, and the adsorption force is changed according to the distance between the workpiece to be deburred and the processing table obtained by the distance sensor, so as to control the workpiece to be deburred to always remain in the preset processing position, ensure that the distance between the workpiece to be deburred and the processing table is consistent, thereby avoiding the deviation in verticality between the workpiece to be deburred and the horizontal plane where the processing table is located, and then stabilizing the focus of the laser beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the laser burr removal device in the embodiment of the utility model without the three-axis mechanism hidden;

[0022] Figure 3 This is a schematic diagram of the structure of the processing table in the embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the positioning component in the embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 4 As shown, the laser burr removal equipment of this embodiment includes a processing table 1, a laser 2 arranged on the processing table 1 for removing burrs from a workpiece to be deburred, and an adsorbent 3 arranged on the processing table 1 for adsorbing the workpiece to be deburred on the processing table 1, wherein the processing table 1 is provided with a supporting structure, and the workpiece to be deburred is maintained at a preset distance from the processing table 1 through the supporting structure.

[0026] There are at least two adsorbents 3, and a distance sensor 4 is arranged between each adjacent one or more adsorbents 3. Each distance sensor 4 is connected to the main controller to control the workpiece to be deburred to always remain at the preset processing position, thereby ensuring that the distance between the workpiece to be deburred and the processing table is consistent and stabilizing the focus of the laser beam. The processing table 1 is provided with an exhaust mechanism for adsorbing each adsorbent 3 on the processing table 1. Correspondingly, each adsorbent 3 includes a first exhaust port 31 located on the adsorption surface and a second exhaust port 32 located on the tail. The second exhaust port 32 and the first exhaust port 31 are connected to the exhaust mechanism through an exhaust channel connecting the two. The setting of the exhaust mechanism can extract the air between the workpiece to be deburred and the adsorbent 3, thereby achieving the adsorption of the workpiece to be deburred on the processing table 1.

[0027] like Figures 1 to 3 As shown, each adsorption member 3 is arranged in a matrix array, and the exhaust channels located in the same rows and / or columns share an exhaust channel, and also includes an adjustment mechanism that can selectively open or close or gradually adjust each second exhaust port 32 on the exhaust channel, and each exhaust channel is basically independently arranged parallel to each other. The exhaust channel is a conventional existing structure, and reference may be made to the exhaust channel and adjustment method adopted in 201320277799.X or 201810252904.1. For this reason, the specific structure will not be repeated. For the flatness adjustment of large flat thin plate products, the exhaust channels of an adjacent row / column of the part with flatness deviation can be adjusted to change the relative position of the workpiece to be deburred corresponding to the exhaust channel and the distance between the processing table 1, so as to achieve a relatively simple adjustment of the flatness of large flat thin plate products. The independently arranged exhaust channel can realize the individual control of each adsorption component 3, thereby controlling the distance between the workpiece to be deburred and the processing table 1 in the corresponding area of ​​the adsorption component 3, and achieving the consistency of the distance between the workpiece to be deburred and the processing table 1.

[0028] The laser 2 is rotatably mounted on a three-axis mechanism 6 provided on the processing table 1 by means of a rotating mechanism 5, and can be moved along the X-axis direction, the Y-axis direction and the Z-axis direction by means of the three-axis mechanism 6. The setting of the three-axis mechanism 6 can realize the movement of the laser 2 in the plane where the workpiece to be deburred is located and in the direction perpendicular to the workpiece to be deburred, so as to adjust the moving trajectory of the laser emitted by the laser 2 according to the size of the workpiece to be deburred, thereby meeting the burr removal of the workpiece to be deburred with complex edges. Among them, the rotating mechanism 5 can rotate at an angle of α, and 0°<α<45°, and the angle α is the angle between the line between the laser 2 and the Z axis and the Z axis. When laser removal is performed on burrs of different sizes, the diameter of the laser spot can be controlled by changing the angle α to meet the accuracy of burr removal, and at the same time, the appearance surface of the workpiece to be deburred is not damaged, thereby improving the quality of burr removal.

[0029] Generally, the large flat plate parts in the kitchen appliance industry have various sizes and specifications. In order to better identify the position where the burrs need to be removed, the laser deburring device of this embodiment also includes a camera sensor 7. A positioning member 11 for positioning the camera sensor 7 is provided adjacent to the processing table 1. The positioning member 11 is provided in the installation space surrounded by the three-axis mechanism 6. The positioning member 11 includes a vertical section 11a perpendicular to the processing table and a transverse section 11b provided at the top of the vertical section 11a and parallel to the processing table 1. The camera sensor is provided on the transverse section 11b, so that the camera sensor 7 is provided facing the processing table 1. The setting of the camera sensor 7 can identify the contours of workpieces of different sizes to be deburred, so as to assist the laser 2 in removing burrs on the surface of the workpiece.

[0030] In addition, if Figure 2 As shown, the processing table 1 is provided with a first adjustment unit group that is adjusted to a preset position along the X direction, and a second adjustment unit group that is adjusted to a preset position along the Y direction, and the first and second adjustment unit groups include a first adjustment member 81 and a second adjustment member 82 that are relatively arranged along a predetermined direction, wherein the second adjustment member 82 can move relative to the first adjustment member 81. The first adjustment unit group and the second adjustment unit group can adjust the position of the second adjustment member 82 according to the contour position input by the camera sensor 7, and fix the workpiece to be deburred between the first adjustment member 81 and the second adjustment member 82. The processing table 1 is provided with a moving channel 83 that is arranged along a preset X-axis or Y-axis direction, and the second adjustment member 82 is arranged in the moving channel 83, and can move along a preset direction under the drive of the driving member. As shown Figure 4As shown, the driving member of this embodiment is a motor 84 disposed on the lower surface of the processing table 1, and the power output end 84a of the motor 84 is connected to the second adjusting member 82, and under the limit of the moving channel 83, the second adjusting member 82 can only be translated along the moving channel 83. In this way, the progress of the motor 84 is changed according to the contour of the workpiece to be deburred identified by the camera sensor 7, so that the second adjusting member 82 is translated to position the workpiece to be deburred at a preset position.

Claims

1. A laser burr removal device, comprising: A processing table (1) is provided with a support structure, and a workpiece to be deburred passes through the support structure to maintain a preset distance from the processing table (1); and The laser (2) is arranged on the processing table (1) and is used to remove burrs from a workpiece to be deburred; and is characterized in that: Also included are: At least two adsorption members (3) are arranged on the processing table (1) and are used to adsorb the workpiece to be deburred thereon, and a distance sensor (4) is arranged between each adjacent one or more adsorption members (3), and each distance sensor (4) is connected to a main controller to control the workpiece to be deburred to always remain at a preset processing position.

2. The laser burr removal device according to claim 1, characterized in that: The processing table (1) is provided with an exhaust mechanism for adsorbing each of the adsorbents (3) on the processing table (1); correspondingly, each of the adsorbents (3) comprises a first exhaust port (31) located on the adsorption surface and a second exhaust port (32) located on the tail; the second exhaust port (32) and the first exhaust port (31) are connected to the exhaust mechanism via an exhaust channel connecting the two.

3. The laser burr removal device according to claim 2, characterized in that: The adsorbents (3) are arranged in a matrix array, and the exhaust channels located in the same rows and / or columns share one exhaust channel, and also include an adjustment mechanism that can selectively open or close or gradually adjust each second exhaust port (32) on the exhaust channel.

4. The laser burr removal device according to claim 3, characterized in that: The exhaust channels are basically independently arranged in parallel with each other.

5. The laser burr removal device according to any one of claims 1 to 4, characterized in that: The laser (2) is rotatably mounted on a three-axis mechanism (6) disposed on a processing table (1) by means of a rotating mechanism (5), and can be moved along the X-axis direction, the Y-axis direction and the Z-axis direction by means of the three-axis mechanism (6).

6. The laser burr removal device according to claim 5, characterized in that: The rotating mechanism (5) can rotate at an angle of α, and 0°<α<45°.

7. The laser burr removal device according to claim 5, characterized in that: The invention also comprises a camera sensor (7), and a positioning member (11) for positioning the camera sensor (7) is arranged adjacent to the processing table (1), and the positioning member (11) is arranged in the installation space surrounded by the three-axis mechanism (6), and the positioning member (11) comprises a vertical section (11a) perpendicular to the processing table (1) and a transverse section (11b) arranged at the top of the vertical section (11a) and parallel to the processing table (1), and the camera sensor (7) is arranged on the transverse section (11b) so that the camera sensor (7) is arranged facing the processing table (1).

8. The laser burr removal device according to claim 7, characterized in that: The processing table (1) is provided with a first adjustment unit group that is adjusted to a preset position along the X-axis direction, and a second adjustment unit group that is adjusted to a preset position along the Y-axis direction, the first and second adjustment unit groups comprising a first adjustment member (81) and a second adjustment member (82) that are arranged relatively along a predetermined direction, wherein the second adjustment member (82) is movable relative to the first adjustment member (81).

9. The laser burr removal device according to claim 8, characterized in that: The processing table (1) is provided with a moving channel (83) arranged along a preset X-axis or Y-axis direction, and the second adjusting member (82) is arranged in the moving channel (83) and can move along the preset direction under the drive of the driving member.

10. The laser burr removal device according to claim 9, characterized in that: The driving member is a motor (84) arranged on the lower surface of the processing table (1), and the power output end (84a) of the motor (84) is connected to the second adjusting member (82), and under the limitation of the moving channel (83), the second adjusting member (82) can only move horizontally along the moving channel (83).

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