Positioning device for laser cutting of energy storage container

Abstract

The invention discloses a positioning device for laser cutting of an energy storage container, and relates to the technical field of positioning devices for laser cutting, the positioning device comprises a fixing frame, horizontal moving mechanisms are arranged on the two sides of the fixing frame, lifting mechanisms are installed on the upper portions of the horizontal moving mechanisms, and a mounting frame is fixedly connected to the upper portions of the lifting mechanisms; and an adjusting mechanism is mounted at the bottom of the mounting frame. According to the material taking and feeding device, the horizontal moving mechanism and the lifting mechanism cooperatively act, the mounting frame, the adjusting mechanism and the fixing mechanism can be driven to accurately complete horizontal and vertical displacement of material taking and feeding, the initial placement precision of workpieces is guaranteed, and in the adjusting mechanism, an electric push rod can drive a second connecting frame to slide along a first sliding rail and a first sliding block of a first connecting frame; horizontal position adjustment of the multiple fixing mechanisms is achieved, distribution of stress points can be matched according to the rigidity characteristics of super-thick plates and ultra-thin plates, dispersion or local concentration of clamping force is avoided, and the height of the fixing mechanisms can be flexibly adjusted through the first air cylinders so that the fixing mechanisms can be matched with the thicknesses of different plates.

Description

Technical Field

[0001] This invention relates to the field of positioning devices for laser cutting, specifically a positioning device for laser cutting of energy storage containers. Background Technology

[0002] As the core carrier of new energy storage systems, the laser cutting of metal components such as the side panels and frame profiles of energy storage containers must meet the requirements of high precision, high consistency and mass production. The cutting accuracy directly affects the reliability and production efficiency of subsequent assembly. In this process, the positioning device for laser cutting of energy storage containers, as a special equipment integrating mechanical structure, sensing detection and control system, can achieve precise fixation, attitude calibration and trajectory guidance of workpieces through components such as reference positioning pins, pneumatic grippers and vision cameras, and transmit positioning data to the laser cutting system in real time to eliminate placement deviations.

[0003] For example, CN120572135A discloses a clamping and positioning device for laser cutting of elliptical tubes, including a positioning table and a laser cutting assembly, as well as a stop module. A positioning plate is fixedly installed on the top of the positioning table, and a clamping assembly is provided on the top of the positioning table. A clamping groove is opened on the top of the positioning table, and a clamping hole is opened at the bottom of the clamping groove. A support rod is fixedly installed on the inner wall of the clamping hole, and a support plate is slidably installed on the circumferential surface of the support rod. Support frames are fixedly installed on the left and right walls of the support plate. The laser cutting assembly is located on the top of the positioning table. The stop module includes an exhaust hole, a hollow rod, a thin-walled rod, an elastic telescopic block, a rubber block, a T-shaped plate, and an anti-sway plate. The support plate is limited by the anti-sway plate and cannot sway laterally. Preventing the elliptical workpiece from swaying can avoid processing hazards caused by cutting deviations and effectively reduce scrap rate and rework costs.

[0004] However, in existing technologies, the fixed design of the clamping stroke and suction cup distribution of the positioning device cannot adapt to the different characteristics of ultra-thick and ultra-thin plates. For ultra-thick plates, their own weight is greater, and the thermal stress and mechanical impact force generated by the high-energy beam during laser cutting are stronger, requiring sufficient clamping force to form a stable constraint. However, a fixed clamping stroke may make it difficult for the clamping mechanism to fully fit the surface of the ultra-thick plate, and a fixed suction cup distribution cannot adjust the force points according to the thickness and rigidity characteristics of the plate, resulting in a dispersion of overall clamping force or insufficient local pressure, which cannot resist external force interference during the cutting process, thus causing the workpiece to break during cutting. Displacement occurs because ultra-thin plates have extremely low rigidity and are fragile, making them far more sensitive to clamping force than conventional plates. A fixed clamping force lacks flexibility and can easily lead to excessive pressure. At the same time, the fixed distribution of suction cups can concentrate pressure in localized areas, making it impossible to distribute it evenly. Under concentrated external force, ultra-thin plates are prone to deformation problems such as dents and warping, which ultimately lead to a decrease in cutting accuracy. Displacement of ultra-thick plates will cause the cut to deviate from the preset trajectory, while deformation of ultra-thin plates will directly damage the original size and shape of the workpiece. This not only affects the adaptability of subsequent assembly but may also produce a large number of defective workpieces, increasing production losses. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning device for laser cutting of energy storage containers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning device for laser cutting of energy storage containers, comprising a fixed frame, horizontal moving mechanisms arranged on both sides of the fixed frame, a lifting mechanism mounted on the upper part of the horizontal moving mechanisms, an installation frame fixedly connected to the upper part of the lifting mechanism, an adjustment mechanism mounted on the bottom of the installation frame, the adjustment mechanism comprising a first connecting frame, an electric push rod fixedly connected to the surface of the first connecting frame, a second connecting frame fixedly connected to the end of the electric push rod, the second connecting frame being slidably connected to the first connecting frame, a first cylinder fixedly connected inside the second connecting frame, a third connecting frame fixedly connected to the end of the first cylinder, a fixing mechanism mounted on the bottom of the third connecting frame, and second cylinders respectively arranged on both sides of the first cylinder, the ends of the second cylinders being fixedly connected to the third connecting frame.

[0007] Preferably, the horizontal moving mechanism is used to drive the lifting mechanism to move horizontally on both sides of the fixed frame, and the lifting mechanism is used to drive the mounting frame to move vertically on the upper part of the fixed frame.

[0008] Preferably, a first slide rail is fixedly connected to the upper part of the first connecting frame, a first slider is slidably connected to the upper part of the first slide rail, and the first slider is fixedly connected to the second connecting frame.

[0009] Preferably, a limiting rod is fixedly connected to the upper part of the third connecting frame, and the limiting rod is slidably inserted into the second connecting frame.

[0010] Preferably, the fixing mechanism includes a hydraulic cylinder assembly, which is fixedly connected to the bottom of the third connecting frame, and a second slide rail is fixedly connected to the bottom of the hydraulic cylinder assembly. A second slider is slidably connected inside the second slide rail, and a suction cup assembly is installed at the bottom of the second slider. The suction cup assembly is externally connected to a control system.

[0011] Preferably, the hydraulic cylinder assembly consists of a base, a pressure sensor, and a hydraulic cylinder body. The pressure sensor is installed between the base and the third connecting bracket, and the hydraulic cylinder body is fixedly connected to the base.

[0012] Preferably, a servo motor is fixedly connected to the end of the second slide rail, and a lead screw is fixedly connected to the output end of the servo motor. The lead screw is rotatably connected to the second slide rail, and the lead screw is threadedly connected to the second slider.

[0013] Preferably, the second slide rail has two second sliders slidably connected inside, and the lead screw surface is provided with two threads in opposite directions, with the two second sliders symmetrically distributed on the surfaces of the two threads in opposite directions.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the horizontal moving mechanism and the lifting mechanism work together to drive the mounting frame, the adjusting mechanism and the fixing mechanism to accurately complete the horizontal and vertical displacement of material picking and loading, ensuring the initial placement accuracy of the workpiece. In the adjusting mechanism, the electric push rod can drive the second connecting frame to slide along the first slide rail and the first slider of the first connecting frame, realizing the horizontal position adjustment of multiple fixing mechanisms. It can adapt the force distribution according to the rigidity characteristics of ultra-thick plates and ultra-thin plates, avoiding the dispersion or local concentration of clamping force. The first cylinder can flexibly adjust the height of the fixing mechanism to adapt to different plate thicknesses. With the help of the second cylinders on both sides, the adjustment stability is improved. It can not only allow the fixing mechanism to fully fit the surface of the ultra-thick plate to form a stable constraint, but also avoid excessive pressure on the ultra-thin plate. The limiting rod limits the vertical movement of the fixing mechanism, further strengthening the stability of the positioning process. Finally, it effectively prevents the cutting displacement of ultra-thick plates and the deformation of ultra-thin plates, improves the cutting accuracy and assembly adaptability, and reduces defective workpieces and production losses. 2. In this invention, the servo motor in the fixing mechanism drives the lead screw to rotate. Because the lead screw surface has two reverse threads, it can drive the two second sliders to slide symmetrically along the second slide rail, thereby flexibly adjusting the spacing and position of the suction cup assembly. This can accurately match the stiffness distribution characteristics of ultra-thick and ultra-thin plates, optimize the force points, and completely solve the problem of traditional suction cup distribution and fixing. The hydraulic cylinder assembly monitors the pressure in real time through the pressure sensor between the base and the third connecting frame. In conjunction with the hydraulic cylinder body, it accurately adjusts the downward pressure of the suction cup assembly, which can provide sufficient clamping force to form a stable constraint for ultra-thick plates, and avoid excessive pressure on ultra-thin plates, which would cause deformation. Moreover, the external control system of the suction cup assembly can be linked with the adjustment action. Combined with the stable adjustment of the overall structure, it greatly improves the adaptability of the fixing mechanism to different plates, enhances the pressure controllability and position accuracy of the positioning process, effectively ensures cutting accuracy, and reduces workpiece scrap rate and production loss. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a positioning device for laser cutting of an energy storage container according to the present invention; Figure 2 This is a front view schematic diagram of a positioning device for laser cutting of an energy storage container according to the present invention; Figure 3 This is a three-dimensional structural diagram of the lifting mechanism in a positioning device for laser cutting of an energy storage container according to the present invention; Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism in a positioning device for laser cutting of an energy storage container according to the present invention; Figure 5 This is a side view of the fixing mechanism in a positioning device for laser cutting of an energy storage container according to the present invention. Figure 6 This is a schematic cross-sectional view of the second slider in the positioning device for laser cutting of an energy storage container according to the present invention.

[0016] In the diagram: 1. Fixed frame; 2. Horizontal moving mechanism; 3. Lifting mechanism; 4. Mounting frame; 5. Adjusting mechanism; 51. Connecting frame 1; 52. Electric push rod; 53. Connecting frame 2; 54. Slide rail 1; 55. Slider 1; 56. Cylinder 1; 57. Cylinder 2; 58. Limit rod; 59. Connecting frame 3; 6. Fixed mechanism; 61. Hydraulic cylinder assembly; 62. Slide rail 2; 63. Slider 2; 64. Suction cup assembly; 65. Servo motor; 66. Lead screw. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Refer to Figures 1-6 As shown: A positioning device for laser cutting of energy storage containers includes a fixed frame 1, horizontal moving mechanisms 2 are arranged on both sides of the fixed frame 1, a lifting mechanism 3 is installed on the upper part of the horizontal moving mechanism 2, a mounting frame 4 is fixedly connected to the upper part of the lifting mechanism 3, and an adjustment mechanism 5 is installed at the bottom of the mounting frame 4. The adjustment mechanism 5 includes a first connecting frame 51, an electric push rod 52 is fixedly connected to the surface of the first connecting frame 51, a second connecting frame 53 is fixedly connected to the end of the electric push rod 52, the second connecting frame 53 is slidably connected to the first connecting frame 51, a first cylinder 56 is fixedly connected inside the second connecting frame 53, a third connecting frame 59 is fixedly connected to the end of the first cylinder 56, a fixing mechanism 6 is installed at the bottom of the third connecting frame 59, and second cylinders 57 are respectively arranged on both sides of the first cylinder 56, the ends of the second cylinders 57 are fixedly connected to the third connecting frame 59. The horizontal moving mechanism 2 is used to drive the lifting mechanism 3 to move horizontally on both sides of the fixed frame 1. The lifting mechanism 3 is used to drive the mounting frame 4 to move vertically on the upper part of the fixed frame 1. The upper part of the first connecting frame 51 is fixedly connected to the first slide rail 54. The upper part of the first slide rail 54 is slidably connected to the first slider 55. The first slider 55 is fixedly connected to the second connecting frame 53. The upper part of the third connecting frame 59 is fixedly connected to the limit rod 58. The limit rod 58 is slidably inserted into the second connecting frame 53.

[0019] In use, the horizontal moving mechanism 2 drives the lifting mechanism 3 to move horizontally, thereby moving the mounting frame 4, adjusting mechanism 5, and fixing mechanism 6 to the material picking point. Then, the lifting mechanism 3, in conjunction with the fixing mechanism 6, picks up and fixes the material. The horizontal moving mechanism 2 then moves the material above the fixing frame 1. Through the coordinated action of the lifting mechanism 3, the material is accurately placed on the surface of the fixing frame 1. During the material loading and fixing process, the extension and retraction of the electric push rod 52 drives the second connecting frame 53 to move, thereby adjusting the position of the multiple fixing mechanisms 6 at the bottom so that they can match the corresponding material. Then, the height of the fixing mechanism 6 is adjusted by the first cylinder 56, and the extension and retraction of the second cylinder 57 makes the fixing mechanism 6 more stable during the adjustment process. Meanwhile, during the horizontal movement of the second connecting frame 53, the first slider 55 slides along the first slide rail 54 to limit the movement of the second connecting frame 53. During the vertical movement of the fixing mechanism 6 driven by the first cylinder 56 and the second cylinder 57, the vertical movement of the fixing mechanism 6 is limited by the sliding of the limiting rod 58 along the second connecting frame 53, thereby improving the stability of the fixing mechanism 6 during operation. Using the fixed frame 1 as the basic support for the overall structure, the horizontal moving mechanism 2 and the lifting mechanism 3 work together to drive the mounting frame 4, the adjusting mechanism 5, and the fixing mechanism 6 to accurately complete the horizontal and vertical displacement of material picking and loading, ensuring the initial placement accuracy of the workpiece. In the adjusting mechanism 5, the electric push rod 52 can drive the second connecting frame 53 to slide along the first slide rail 54 and the first slider 55 of the first connecting frame 51, realizing the horizontal position adjustment of multiple fixing mechanisms 6. It can adapt to the distribution of force points according to the rigidity characteristics of ultra-thick and ultra-thin plates, avoiding clamping. Force can be dispersed or concentrated locally; the first cylinder 56 can flexibly adjust the height of the fixing mechanism 6 to adapt to different plate thicknesses, and together with the second cylinders 57 on both sides, it can improve the adjustment stability. This allows the fixing mechanism 6 to fully fit the surface of the ultra-thick plate to form a stable constraint, while avoiding excessive pressure on the ultra-thin plate. The limiting rod 58 limits the up and down movement of the fixing mechanism 6, which further enhances the stability of the positioning process. Ultimately, it effectively prevents the cutting displacement of the ultra-thick plate and the deformation of the ultra-thin plate, improves the cutting accuracy and assembly adaptability, and reduces defective workpieces and production losses.

[0020] Example 2: According to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the fixing mechanism 6 includes a hydraulic cylinder assembly 61, which is fixedly connected to the bottom of the third connecting frame 59. A second slide rail 62 is fixedly connected to the bottom of the hydraulic cylinder assembly 61. A second slider 63 is slidably connected inside the second slide rail 62. A suction cup assembly 64 is installed at the bottom of the second slider 63. A control system is externally connected to the suction cup assembly 64. The hydraulic cylinder assembly 61 consists of a base, a pressure sensor, and a hydraulic cylinder body. The pressure sensor is installed between the base and the third connecting frame 59. The hydraulic cylinder body is fixedly connected to the base. A servo motor 65 is fixedly connected to the end of the second slide rail 62. A lead screw 66 is fixedly connected to the output end of the servo motor 65. The lead screw 66 is rotatably connected to the second slide rail 62 and threadedly connected to the second slider 63. Two second sliders 63 are slidably connected inside the second slide rail 62. Two threads in opposite directions are provided on the surface of the lead screw 66. The two second sliders 63 are symmetrically distributed on the surfaces of the two threads in opposite directions.

[0021] In this invention, when positioning and fixing different materials, the servo motor 65 drives the lead screw 66 to rotate, causing the second slider 63 to slide inside the second slide rail 62, thereby adjusting the position of the suction cup assembly 64 and improving the adaptability of the fixing mechanism 6 to different materials. While adjusting the downward pressure of the suction cup assembly 64 by the first cylinder 56 and the second cylinder 57, the pressure at the positioning point is precisely controlled by the pressure sensor installed between the hydraulic cylinder body in the hydraulic cylinder assembly 61 and the base and the third connecting frame 59. The servo motor 65 in the fixing mechanism 6 drives the lead screw 66 to rotate. Because the lead screw 66 has two reverse threads on its surface, it can drive the two second sliders 63 to slide symmetrically along the second slide rail 62, thereby flexibly adjusting the spacing and position of the suction cup assembly 64. This can accurately match the stiffness distribution characteristics of ultra-thick and ultra-thin plates, optimize the force points, and completely solve the problem of traditional suction cup distribution and fixation. The hydraulic cylinder assembly 61 monitors the pressure in real time through the pressure sensor between the base and the third connecting frame 59. In conjunction with the hydraulic cylinder body, it accurately adjusts the downward pressure of the suction cup assembly 64. This can provide sufficient clamping force to form a stable constraint for ultra-thick plates, while avoiding excessive pressure on ultra-thin plates that could lead to deformation. Furthermore, the external control system of the suction cup assembly 64 can be linked with the adjustment action. Combined with the stable adjustment of the overall structure, this greatly improves the adaptability of the fixing mechanism 6 to different plates, enhances the pressure controllability and position accuracy of the positioning process, effectively ensures cutting accuracy, and reduces workpiece scrap rate and production loss.

[0022] The operating method and working principle of this device are as follows: The horizontal moving mechanism 2 drives the lifting mechanism 3 to move horizontally, thereby moving the mounting frame 4, adjusting mechanism 5 and fixing mechanism 6 to the material picking point. Then, the lifting mechanism 3, in conjunction with the fixing mechanism 6, picks up and fixes the material. The horizontal moving mechanism 2 then moves the material above the fixing frame 1. Through the coordinated action of the lifting mechanism 3 and the lifting mechanism 6, the material is accurately placed on the surface of the fixing frame 1. During the material loading and fixing process, the extension and retraction of the electric push rod 52 drives the second connecting frame 53 to move, thereby driving the multiple fixing mechanisms 6 at the bottom to adjust their positions so that they can match the corresponding materials. Then, the height of the fixing mechanism 6 is adjusted by the first cylinder 56, and the extension and retraction of the second cylinder 57 makes the fixing mechanism 6 more stable during the adjustment process. Meanwhile, during the horizontal movement of the second connecting frame 53, the first slider 55 slides along the first slide rail 54 to limit the movement of the second connecting frame 53. During the vertical movement of the fixing mechanism 6 driven by the first cylinder 56 and the second cylinder 57, the vertical movement of the fixing mechanism 6 is limited by the sliding of the limiting rod 58 along the second connecting frame 53, thereby improving the stability of the fixing mechanism 6 during operation. When positioning and fixing different materials, the servo motor 65 drives the lead screw 66 to rotate, causing the second slider 63 to slide inside the second slide rail 62, thereby adjusting the position of the suction cup assembly 64 and improving the adaptability of the fixing mechanism 6 to different materials. While adjusting the downward pressure of the suction cup assembly 64 through the first cylinder 56 and the second cylinder 57, the pressure at the positioning point is precisely controlled by the pressure sensor installed between the hydraulic cylinder body in the hydraulic cylinder assembly 61 and the base and the third connecting frame 59.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning device for laser cutting of energy storage containers, comprising a fixed frame (1), wherein horizontal moving mechanisms (2) are provided on both sides of the fixed frame (1), and a lifting mechanism (3) is installed on the upper part of the horizontal moving mechanisms (2), characterized in that: The lifting mechanism (3) is fixedly connected to the upper part of the mounting frame (4), and the bottom of the mounting frame (4) is equipped with an adjustment mechanism (5). The adjustment mechanism (5) includes a first connecting frame (51), an electric push rod (52) is fixedly connected to the surface of the first connecting frame (51), a second connecting frame (53) is fixedly connected to the end of the electric push rod (52), the second connecting frame (53) is slidably connected to the first connecting frame (51), a first cylinder (56) is fixedly connected inside the second connecting frame (53), a third connecting frame (59) is fixedly connected to the end of the first cylinder (56), a fixing mechanism (6) is installed at the bottom of the third connecting frame (59), and a second cylinder (57) is respectively provided on both sides of the first cylinder (56). The end of the second cylinder (57) is fixedly connected to the third connecting frame (59).

2. The positioning device for laser cutting of energy storage containers according to claim 1, characterized in that: The horizontal moving mechanism (2) is used to drive the lifting mechanism (3) to move horizontally on both sides of the fixed frame (1), and the lifting mechanism (3) is used to drive the mounting frame (4) to move vertically on the upper part of the fixed frame (1).

3. The positioning device for laser cutting of energy storage containers according to claim 1, characterized in that: The first connecting frame (51) is fixedly connected to the upper part of the first slide rail (54), and the first slide rail (54) is slidably connected to the upper part of the first slider (55). The first slider (55) is fixedly connected to the second connecting frame (53).

4. The positioning device for laser cutting of energy storage containers according to claim 1, characterized in that: The upper part of the third connecting frame (59) is fixedly connected to a limiting rod (58), and the limiting rod (58) is slidably inserted into the second connecting frame (53).

5. The positioning device for laser cutting of energy storage containers according to claim 1, characterized in that: The fixing mechanism (6) includes a hydraulic cylinder assembly (61), which is fixedly connected to the bottom of the third connecting frame (59), and a second slide rail (62) is fixedly connected to the bottom of the hydraulic cylinder assembly (61). A second slider (63) is slidably connected inside the second slide rail (62), and a suction cup assembly (64) is installed at the bottom of the second slider (63). A control system is externally connected to the suction cup assembly (64).

6. The positioning device for laser cutting of energy storage containers according to claim 5, characterized in that: The cylinder assembly (61) consists of a base, a pressure sensor and a cylinder body. The pressure sensor is installed between the base and the third connecting bracket (59). The cylinder body is fixedly connected to the base.

7. The positioning device for laser cutting of energy storage containers according to claim 6, characterized in that: A servo motor (65) is fixedly connected to the end of the second slide rail (62), and a lead screw (66) is fixedly connected to the output end of the servo motor (65). The lead screw (66) is rotatably connected to the second slide rail (62), and the lead screw (66) is threadedly connected to the second slider (63).

8. The positioning device for laser cutting of energy storage containers according to claim 7, characterized in that: The second slide rail (62) has two second sliders (63) internally connected. The surface of the lead screw (66) is provided with two threads in opposite directions. The two second sliders (63) are symmetrically distributed on the surfaces of the two threads in opposite directions.

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