An intelligent laser cutting equipment for precision hardware processing

Abstract

The present invention relates to an intelligent laser cutting device for precision hardware processing applied in the field of cutting equipment. Through the setting of bilateral positioners, when the workpiece to be cut enters the cutting station, the workpiece front sensing component and the workpiece rear sensing component can monitor the position of the workpiece to be cut in different directions, and can automatically fine-tune the position according to the monitoring results until it is in the target position, and then continue to cut the workpiece, effectively ensuring that the workpiece to be cut is in the target position each time the laser is cut. Compared with the existing technology of direct cutting after loading, the possibility of tilting and offsetting is greatly reduced, thereby effectively ensuring the cutting accuracy, and effectively reducing the amount of material waste caused by cutting tilt.

Description

Technical Field

[0001] The present invention relates to an intelligent laser cutting device for precision hardware processing, and in particular to an intelligent laser cutting device for precision hardware processing applied in the field of cutting equipment. Background Art

[0002] Laser cutting uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, evaporated to form holes, and as the beam moves on the material, the holes continuously form a very narrow (such as about 0.1mm) slit to achieve cutting. In the prior art, when performing laser cutting, intelligent continuous operation is generally adopted, and the loading and unloading is evenly and intelligently operated without manual labor, such as the Chinese patent CN106216854B "Intelligent feeding and unloading laser cutting machine".

[0003] However, in the actual operation process, for larger metal plates, they need to be cut first and then undergo hardware processing. However, large plates are generally fed by transmission rollers, and are prone to a certain degree of tilt when transmitted to the cutting station. However, in the prior art, it is difficult to detect the tilt in time after transmission and before cutting, which affects the cutting accuracy of the metal plate, and cutting when tilted is also likely to cause material waste. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that during intelligent continuous cutting, the workpiece to be cut is prone to tilt when loading, which affects the cutting accuracy and even easily causes waste of materials.

[0005] In order to solve the above problems, the present invention provides an intelligent laser cutting device for precision hardware processing, comprising a cutting platform with a control center, a lateral translation component for lateral movement is installed on the upper end of the cutting platform through an electric slide rail, a longitudinal translation component for longitudinal movement is installed on the lateral translation component through an electric slide rail, a laser cutting head is installed on the longitudinal translation component through an electric rotating shaft, a material unloading component and a material loading component are installed on the left and right upper ends of the cutting platform respectively, the material loading component and the material unloading component both include a plurality of transmission rollers, and the material loading component, the material unloading component, the electric slide rail and the laser cutting head are all connected to the control center signal;

[0006] A bilateral locator is installed on the upper end of the cutting platform through an electric rotating shaft. The upper end of the cutting platform is also electrically connected to an electromagnetic limit plate, which is located between the bilateral locator and the lateral translation assembly. The bilateral locator includes a right-angle rotating shaft rotating with the cutting platform and a rear adjustment arm and a front monitoring arm respectively fixedly connected to the two arms of the right-angle rotating shaft. The rear adjustment arm is close to one side of the feeding assembly, and the electromagnetic limit plate corresponds to the rear adjustment arm. The front monitoring arm and the rear adjustment arm are respectively provided with a workpiece front sensing assembly and a workpiece rear sensing assembly, which are both connected to the control center signal.

[0007] In the above-mentioned intelligent laser cutting equipment for precision hardware processing, through the setting of bilateral positioners, the position of the workpiece to be cut can be automatically fine-tuned and monitored when it enters the cutting station, effectively ensuring that the workpiece to be cut is in the target position every time laser cutting is performed. Compared with the existing technology of direct cutting after loading, the possibility of tilt and deviation is greatly reduced, thereby effectively ensuring the cutting accuracy.

[0008] As a further improvement of the present application, the rear adjusting arm is made of electromagnetic material, and the portion of the rear adjusting arm corresponding to the electromagnetic limiting plate is fixedly connected with an iron sheet.

[0009] As a further improvement of the present application, the lengths of the rear adjustment arm and the front monitoring arm are not less than half the lengths of the corresponding ends of the workpiece, and the bilateral locator is located between the loading assembly and the unloading assembly.

[0010] As a further improvement of the present application, the lateral span of the loading assembly is 2-3 times the lateral span of the unloading assembly, and the rotation angle of the bilateral positioner is 90° each time.

[0011] As a further improvement of the present application, the workpiece front sensing assembly and the workpiece rear sensing assembly both include a light strip and two electrical contacts electrically connected to the circuits where the light strips are located. The two light strips are respectively installed on the upper ends of the rear adjustment arm and the front monitoring arm.

[0012] As a further improvement of the present application, two monitoring cavities corresponding to two electrical contacts are excavated in the front monitoring arm. The electrical contacts on the front monitoring arm include a conductive sheet movably embedded on the end face of the front monitoring arm facing the feeding assembly, an elastic gasket fixedly connected to the inner wall of the monitoring cavity opposite to the conductive sheet, and a pressure sensor installed on the elastic gasket, and the pressure sensor is in contact with the conductive sheet.

[0013] As a further improvement of the present application, the electrical contact on the rear adjustment arm includes only two conductive plates, and the two conductive plates are also connected in series to the circuit where the light strip is located. The conductive plates on the rear adjustment arm and the front monitoring arm extend outside the end surfaces of the rear adjustment arm and the front monitoring arm respectively.

[0014] As a further improvement of the present application, the elastic gasket is made of elastic material, the conductive sheet is made of conductive material, and the surfaces of the rear adjustment arm and the front monitoring arm are both wrapped with an insulating layer.

[0015] As another improvement of the present application, the bilateral locator is made of metal iron, and the surface of the bilateral locator is wrapped with insulating material. A magnetic plate is also installed above the cutting platform through an electric slide rail, and the magnetic plate is not within the magnetic attraction range after the electromagnetic limit plate is energized.

[0016] In summary, in the above-mentioned intelligent laser cutting equipment for precision hardware processing, through the setting of the bilateral locator, when the workpiece to be cut enters the cutting station, the workpiece front sensing component and the workpiece rear sensing component can monitor the position of the workpiece to be cut in different directions, and can automatically fine-tune the position according to the monitoring results until it is in the target position, and then continue to cut the workpiece, effectively ensuring that the workpiece to be cut is in the target position each time the laser is cut. Compared with the existing technology of direct cutting after loading, the possibility of tilt and deviation is greatly reduced, thereby effectively ensuring the cutting accuracy, and effectively reducing the amount of material waste caused by cutting tilt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a left side stereogram of the first embodiment of the present application;

[0018] Figure 2 This is a right side perspective view of the first embodiment of the present application;

[0019] Figure 3 This is a three-dimensional diagram of the first embodiment of the present application when cutting and unloading;

[0020] Figure 4 This is a schematic diagram of the first embodiment of the present application when the workpiece is displaced and unloaded after cutting;

[0021] Figure 5 A top view of a bilateral locator in the first embodiment of the present application;

[0022] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0023] Figure 7 This is a stereoscopic diagram of a bilateral locator in the first embodiment of the present application;

[0024] Figure 8 A top view of a bilateral locator in a second embodiment of the present application;

[0025] Fig. 9 This is a schematic diagram of the process of monitoring and adjusting the position of a workpiece to be cut by a bilateral positioner in the second embodiment of the present application.

[0026] Description of the numbers in the figure:

[0027] 1 cutting platform, 21 lateral translation assembly, 22 longitudinal translation assembly, 3 laser cutting head, 41 loading assembly, 42 unloading assembly, 5 bilateral positioner, 51 rear adjustment arm, 52 front monitoring arm, 53 right-angle shaft, 501 monitoring cavity, 6 electromagnetic limit plate, 61 magnetic plate, 71 conductive sheet, 72 pressure sensor, 73 elastic gasket, 8 light strip. DETAILED DESCRIPTION

[0028] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] Figure 1 and Figure 2 An intelligent laser cutting device for precision hardware processing is shown, comprising a cutting platform 1 with a control center, a lateral translation component 21 for lateral movement is installed on the upper end of the cutting platform 1 through an electric slide rail, a longitudinal translation component 22 for longitudinal movement is installed on the lateral translation component 21 through an electric slide rail, a laser cutting head 3 is installed on the longitudinal translation component 22 through an electric shaft, a blanking component 42 and a loading component 41 are installed on the left and right upper ends of the cutting platform 1 respectively, the loading component 41 and the blanking component 42 each include a plurality of transmission rollers, the loading component 41, the blanking component 42, the electric slide rail and the laser cutting head 3 are all connected to the control center signal, a bilateral positioner 5 is installed on the upper end of the cutting platform 1 through an electric shaft, and the bilateral positioner 5 is located between the loading component 41 and the blanking component 42, when cutting, the workpiece to be cut is loaded to the bilateral positioner 5 through the loading component 41 for laser cutting, and after cutting, as shown in FIG. Figure 3 and Figure 4 In the figure, a represents the workpiece to be cut, and the bilateral positioner 5 rotates 90 degrees to assist in cutting the workpiece and move it toward the blanking component 42 to facilitate blanking.

[0031] When the bilateral positioner 5 contacts the electromagnetic limit plate 6, the position between the two arms of the bilateral positioner 5 is the cutting station.

[0032] The lateral span of the loading component 41 is 2-3 times the lateral span of the unloading component 42. After one cutting is completed, the loading component 41 continues to load, and the bilateral positioner 5 synchronously rotates to transfer the cut workpiece, and then rotates back to the initial position. The loading component 41 is relatively long, which can provide a certain time for the action of the bilateral positioner 5, so that after its rotation, the loaded workpiece to be cut has not yet reached the cutting station, which is convenient for maintaining the stable and orderly progress of the cutting process.

[0033] The upper end of the cutting platform 1 is also electrically connected to an electromagnetic limit plate 6, which is located between the bilateral positioner 5 and the lateral translation component 21. The bilateral positioner 5 includes a right-angle shaft 53 that rotates with the cutting platform 1 and a rear adjustment arm 51 and a front monitoring arm 52 that are respectively fixedly connected to the two arms of the right-angle shaft 53. The rear adjustment arm 51 is close to one side of the loading component 41. The electromagnetic limit plate 6 and the rear adjustment arm 51 correspond to each other. The rear adjustment arm 51 is made of electromagnetic material. After power is turned on, the rear adjustment arm 51 can be magnetic, and the corresponding part of the rear adjustment arm 51 and the electromagnetic limit plate 6 is fixedly connected with an iron sheet. When the bilateral positioner 5 is in the initial position, the electromagnetic limit plate 6 is controlled to be energized so that it adsorbs the iron sheet, thereby positioning the bilateral positioner 5, so that when the workpiece arrives and contacts the bilateral positioner 5, it is not easy to cause the bilateral positioner 5 to move toward the side of the unloading component 42, so that when the workpiece arrives at the cutting station, the monitoring and adjustment of the workpiece position are better.

[0034] The lengths of the rear adjustment arm 51 and the front monitoring arm 52 are not less than half the length of the corresponding ends of the workpiece, which effectively ensures that after cutting, the bilateral locator 5 can stably reposition the workpiece and unload the material, and it is not easy for the workpiece to escape from the control of the bilateral locator 5 during repositioning due to being too large.

[0035] like Figure 5 and Figure 6 The front monitoring arm 52 and the rear adjustment arm 51 are respectively provided with a workpiece front sensing component and a workpiece rear sensing component, and the workpiece front sensing component and the workpiece rear sensing component are both connected to the control center signal, such as Figure 7 The front sensing component and the rear sensing component of the workpiece both include a light strip 8 and two electrical contacts electrically connected to the circuit where the light strip 8 is located. The two light strips 8 are respectively installed at the upper ends of the rear adjustment arm 51 and the front monitoring arm 52. When the workpiece arrives at the cutting station, it will first contact the front monitoring arm 52. Due to the resistance of the front monitoring arm 52 and the friction force of the feeding component 41 on it, the end of the workpiece will gradually become parallel to and contact the front monitoring arm 52, thereby contacting the two electrical contacts on the front monitoring arm 52, so that the circuit where the corresponding light strip 8 is located is turned on and lit. At this time, after the control center receives the signal, it controls the rear adjustment arm 51 to be energized to generate magnetism, thereby adsorbing the workpiece from the side, so that it moves toward the rear adjustment arm 51 and contacts the rear adjustment arm 51. At this time, the light strip 8 on the rear adjustment arm 51 is also turned on. At this time, the control center receives the signal that the second light strip 8 is turned on again, which means that the position of the workpiece has been corrected, and the laser cutting head 3 can be controlled to perform the cutting task. Compared with direct cutting after loading, the cutting accuracy is greatly improved.

[0036] Two monitoring cavities 501 corresponding to two electrical contacts are bored in the front monitoring arm 52. The electrical contacts on the front monitoring arm 52 include a conductive sheet 71 movably embedded on the end face of the front monitoring arm 52 facing the loading assembly 41, an elastic gasket 73 fixedly connected to the inner wall of the monitoring cavity 501 opposite to the conductive sheet 71, and a pressure sensor 72 installed on the elastic gasket 73. The pressure sensor 72 is in contact with the conductive sheet 71. The elastic gasket 73 is made of elastic material, and the conductive sheet 71 is made of conductive material. The surfaces of the rear adjustment arm 51 and the front monitoring arm 52 are wrapped with an insulating layer, so that the electricity on the conductive sheet 71 is not easily conducted outward, thereby effectively ensuring safety.

[0037] Among them, the electrical contacts on the rear adjustment arm 51 only include two conductive plates 71, and the two conductive plates 71 are also connected in series to the circuit where the light strip 8 is located. The conductive plates 71 on the rear adjustment arm 51 and the front monitoring arm 52 extend outside the end surfaces of the rear adjustment arm 51 and the front monitoring arm 52 respectively.

[0038] When the workpiece contacts the two electrical contacts at the same time, the light strip 8 is lit, and the two conductive sheets 71 are squeezed by the workpiece, so that the two pressure sensors 72 can generate force data at the same time. When the force data on the two pressure sensors 72 are close or not much different, it means that the workpiece and the front monitoring arm 52 are parallel. Combined with the signal of the light strip 8 being lit, the control center can monitor and adjust the workpiece position more accurately.

[0039] It is worth noting that, in order to ensure safety, the surface of the cutting platform 1 is insulated, or the cutting platform 1 is made of insulating material.

[0040] In summary, in the above-mentioned intelligent laser cutting equipment for precision hardware processing, through the setting of the bilateral locator 5, when the workpiece to be cut enters the cutting station, the workpiece front sensing component and the workpiece rear sensing component can monitor the position of the workpiece to be cut in different directions, and can automatically fine-tune the position according to the monitoring results until it is in the target position, and then continue to cut the workpiece, effectively ensuring that the workpiece to be cut is in the target position each time the laser is cut. Compared with the existing technology of direct cutting after loading, the possibility of tilt and deviation is greatly reduced, thereby effectively ensuring the cutting accuracy, and effectively reducing the amount of material waste caused by cutting tilt.

[0041] The second implementation method:

[0042] Based on the first embodiment, this embodiment changes the arrangement of the bilateral positioner 5 and adds a magnetic plate 61, while the rest of the parts remain the same as the first embodiment.

[0043] Figure 8As shown, the bilateral positioner 5 is made of metal iron, so that it has no adsorption force on the hardware workpiece to be cut. When the workpiece to be cut moves toward the bilateral positioner 5 for loading, its moving direction is not easily changed by the magnetic attraction of the side, which effectively ensures its relatively stable movement, makes its tilting amount smaller, reduces the amplitude and difficulty of subsequent correction, and effectively ensures the cutting effect. The surface of the bilateral positioner 5 is wrapped with insulating material, and a magnetic plate 61 is installed above the cutting platform 1 through an electric slide rail. Fig. 9 When force data is generated on the elastic gasket 73, it means that the workpiece to be cut has reached the cutting position. At this time, the control center can control the corresponding electric slide rail to drive the magnetizing plate 61 to move toward the electromagnetic limit plate 6 until it contacts the electromagnetic limit plate 6, so that the magnetizing plate 61 is also energized to generate magnetic force, and then the workpiece is adsorbed on the side, so that both sides of the workpiece are attached to the two arms of the bilateral locator 5 at the same time, so as to adjust the position of the workpiece. The magnetizing plate 61 is not within the magnetic attraction range after the electromagnetic limit plate 6 is energized. When the electromagnetic limit plate 6 is energized to adsorb the bilateral locator 5 and the bilateral locator 5 is positioned, the adsorption force of the electromagnetic limit plate 6 is not enough to move the magnetizing plate 61 toward the electromagnetic limit plate 6, thereby reducing the impact on the workpiece when it moves toward the cutting position.

[0044] In addition, it is worth noting that:

[0045] In this embodiment, the bilateral locator 5 itself does not have magnetism, so when the workpiece position is exchanged, only the bilateral locator 5 is relied on for limiting. Therefore, this embodiment is more suitable for plate-like workpieces with smaller sizes, and preferably the length and width dimensions do not exceed the corresponding arm length of the bilateral locator 5.

[0046] The bilateral positioner 5 in this embodiment is an integral structure. Compared with the first embodiment, the bilateral positioner 5 is not divided into the rear adjustment arm 51, the front monitoring arm 52, and the right-angle rotating shaft 53, and the overall bilateral positioner 5 is made of the same material.

[0047] Both this embodiment and the first embodiment can realize the adjustment of the position of the workpiece. During the specific implementation, a suitable embodiment can be selected according to actual needs.

[0048] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An intelligent laser cutting device for precision metal processing, characterized in that: The invention comprises a cutting platform (1) with a control center, wherein a lateral translation component (21) for lateral movement is installed on the upper end of the cutting platform (1) via an electric slide rail, a longitudinal translation component (22) for longitudinal movement is installed on the lateral translation component (21) via an electric slide rail, a laser cutting head (3) is installed on the longitudinal translation component (22) via an electric rotating shaft, a material discharge component (42) and a material loading component (41) are installed on the left and right upper ends of the cutting platform (1), respectively, the material loading component (41) and the material discharge component (42) each comprise a plurality of transmission rollers, and the material loading component (41), the material discharge component (42), the electric slide rail and the laser cutting head (3) are all connected to the control center signal; A bilateral positioner (5) is installed on the upper end of the cutting platform (1) through an electric rotating shaft. The upper end of the cutting platform (1) is also electrically connected to an electromagnetic limit plate (6). The electromagnetic limit plate (6) is located between the bilateral positioner (5) and the lateral translation component (21). The bilateral positioner (5) includes a right-angle rotating shaft (53) rotatably connected to the cutting platform (1) and a rear adjustment arm (51) and a front monitoring arm (52) respectively fixedly connected to two arms of the right-angle rotating shaft (53). The rear adjustment arm (51) is close to one side of the feeding component (41). The electromagnetic limit plate (6) and the rear adjustment arm (51) correspond to each other. A workpiece front sensing component and a workpiece rear sensing component are respectively provided on the front monitoring arm (52) and the rear adjustment arm (51). Both the workpiece front sensing component and the workpiece rear sensing component are connected to the control center signal. The workpiece front sensing component and the workpiece rear sensing component both comprise a light strip (8) and two electrical contacts respectively electrically connected to the circuit where the light strip (8) is located. The two light strips (8) are respectively mounted on the upper ends of the rear adjustment arm (51) and the front monitoring arm (52). Two monitoring cavities (501) respectively corresponding to the two electrical contacts are excavated in the front monitoring arm (52). The electrical contacts on the front monitoring arm (52) comprise a conductive sheet (71) movably embedded on the end surface of the front monitoring arm (52) facing the feeding component (41), an elastic gasket (73) fixedly connected to the inner wall of the monitoring cavity (501) opposite to the conductive sheet (71), and a pressure sensor (72) mounted on the elastic gasket (73), wherein the pressure sensor (72) contacts the conductive sheet (71). The electrical contact on the rear adjustment arm (51) comprises only two conductive sheets (71), and the two conductive sheets (71) are also connected in series to the circuit where the light strip (8) is located, and the conductive sheets (71) on the rear adjustment arm (51) and the front monitoring arm (52) extend outside the end surfaces of the rear adjustment arm (51) and the front monitoring arm (52), respectively; The lengths of the rear adjustment arm (51) and the front monitoring arm (52) are not less than half the length of the corresponding ends of the workpiece, and the bilateral positioner (5) is located between the loading component (41) and the unloading component (42). The lateral span of the loading component (41) is 2-3 times the lateral span of the unloading component (42). The rotation angle of the bilateral positioner (5) is 90° each time. The bilateral positioner (5) is made of metal iron, and the surface of the bilateral positioner (5) is wrapped with insulating material. A magnetic plate (61) is also installed above the cutting platform (1) through an electric slide rail, and the magnetic plate (61) is not within the magnetic attraction range of the electromagnetic limit plate (6) after power is turned on.

2. According to claim 1, the intelligent laser cutting equipment for precision hardware processing is characterized by: The elastic gasket (73) is made of an elastic material, the conductive sheet (71) is made of a conductive material, and the surfaces of the rear adjustment arm (51) and the front monitoring arm (52) are both wrapped with an insulating layer.

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