A workpiece positioning device for a three-dimensional laser cutting device

Abstract

The present invention provides a workpiece positioning device for a three-dimensional laser cutting device, which relates to the technical field of laser cutting. It includes a device housing component and a laser cutting mechanism. The laser cutting mechanism is installed inside the device housing component. A workpiece switching mechanism is arranged below the laser cutting mechanism. The workpiece switching mechanism can position thin workpieces during the switching process. Width adjustment components are connected to both sides of the workpiece switching mechanism. Through the above technical solution, its purpose is: the workpiece switching mechanism can drive the mounting plate to move horizontally. The mounting frame can push the connecting bracket to move to both sides through the transmission rod, realizing the switching between the transverse support pallet and the multi-point support pallet. Then, through the transverse support pallet and the multi-point support pallet, the effect of laser cutting different workpieces can be achieved, and different workpieces can be positioned for workpieces of different thicknesses, improving the practicability and versatility of the laser cutting device.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and in particular to a workpiece positioning device for a three-dimensional laser cutting device. 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, and holes are formed by evaporation. As the beam moves relative to the material, narrow slits are continuously formed to complete the cutting of the material. However, during the laser cutting process, in order to improve the accuracy and efficiency of laser cutting, workpiece positioning is performed.

[0003] Currently, in the prior art, when positioning a laser cutting workpiece, when the workpiece is too thin, the positioning device cannot effectively support and position the thin workpiece, resulting in the phenomenon of cutting deviation of the thin workpiece during the cutting process. At the same time, if the width of the workpiece is too wide, and the traditional positioning device cannot be adjusted according to the width of the workpiece, it cannot effectively position the wide workpiece, thereby affecting the processing efficiency of the three-dimensional laser cutting device. Therefore, the present invention proposes a workpiece positioning device for a three-dimensional laser cutting device. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art that when processing a relatively thin workpiece, the positioning effect is limited, and the phenomenon of loose and unstable workpiece positioning occurs, and the function cannot be adjusted according to the width of some wider workpieces, thereby reducing the practicability of the positioning device and affecting the laser cutting processing efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A workpiece positioning device for a three-dimensional laser cutting device, comprising a device housing member and a laser cutting mechanism. The laser cutting mechanism is installed inside the device housing member. A workpiece switching mechanism is arranged below the laser cutting mechanism. The workpiece switching mechanism can position thin workpieces during the switching process. Width adjustment components are connected to both sides of the workpiece switching mechanism. The width adjustment components can position wide workpieces during the width adjustment process. The width adjustment components include a bearing rod. Installation sleeves are movably installed at both ends of the bearing rod. A connecting bracket is fixedly connected to the upper surface of each installation sleeve. Chutes are arranged on both sides of the connecting bracket. Fixed brackets are movably installed in the chutes. A plurality of uniformly distributed horizontal support plates are fixedly connected inside the fixed brackets. The workpiece switching mechanism includes a special-shaped fixing plate. The special-shaped fixing plate is fixedly connected to the middle of the lower surface of the bearing rod. One-sided two ends of the special-shaped fixing plate are provided with first limit sleeves. Telescopic rods are telescopically installed in each first limit sleeve. A first fixing seat is fixedly sleeved on the upper end of each telescopic rod. A limit frame is fixedly connected to one side of the first fixing seat. An installation frame is arranged on one side of the limit frame. A plurality of uniformly distributed multi-point support plates are fixedly connected to the middle of the installation frame.

[0006] In at least some embodiments, the device housing member includes a sound-insulating housing. A bottom support plate is fixedly connected to the lower surface of the sound-insulating housing. Support legs are fixedly connected to the four corners of the lower surface of the bottom support plate. An opening is arranged in the middle of the upper surface of the sound-insulating housing. A cover plate is rotatably installed at the opening of the sound-insulating housing through a hinge. An operation panel is fixedly connected to one side of the upper surface of the sound-insulating housing. A plurality of uniformly distributed ventilation holes are arranged behind the sound-insulating housing. An air-venting fan is installed in each ventilation hole.

[0007] In at least some embodiments, the laser cutting mechanism includes an X-axis driving device. The X-axis driving device is installed on both sides of the inner wall of the sound-insulating housing. Sliders are installed on each X-axis driving device. A Y-axis driving device is installed between the two sliders. A laser emitting device is installed in the middle of the Y-axis driving device. A laser cutting head is installed on one side of the laser emitting device.

[0008] In at least some embodiments, the upper end of the telescopic rod is threadedly engaged with an adjusting screw. A knob is fixedly connected to the upper end of the adjusting screw. A connecting rod is rotatably installed on each adjusting screw. A positioning frame is fixedly connected to one end of the connecting rod. The positioning frame is located above the multi-point support plate.

[0009] In at least some embodiments, rotating members are rotatably installed at the four corners of the lower surface of the installation frame. Each rotating member is rotatably installed with a connecting sheet metal. Another group of rotating members is installed at the lower end of each connecting sheet metal. A side connecting plate is rotatably installed inside another group of rotating members. An installation plate is fixedly connected between the side connecting plates. The installation plate is provided with four collection holes, and a collection fan is installed in each collection hole.

[0010] In at least some embodiments, a support frame is fixedly connected to the middle of the lower surface of each side connecting plate. Limit rods are movably installed at both ends of the support frame. A driving lead screw is arranged in the middle of the two limit rods. One end of the driving lead screw is fixedly connected to a driving motor. The driving lead screw is threadedly engaged with a threaded fitting sleeve through the thread on its surface. The threaded fitting sleeve is arranged in the middle of the support frame. The limit rod and the driving motor are fixedly connected to one side surface of the special-shaped fixing plate.

[0011] In at least some embodiments, ball seats are rotatably connected to both sides of one end of the installation frame. There are four ball seats. The other two ball seats are rotatably installed at one end of the installation sleeve. A sphere is installed in each ball seat. A transmission rod is fixedly connected between the two spheres on the same side.

[0012] In at least some embodiments, a push rod mounting seat is fixedly connected to one end of the upper surface of the connecting bracket. An electric push rod is fixedly connected to one side of the push rod mounting seat. The output shaft of the electric push rod is fixedly connected to a push block. The push block is fixedly connected to one side surface of the fixed bracket. Two mounting brackets are fixedly connected to one side of the push block. One end of the mounting bracket is rotatably installed with a rotating shaft. One end of the rotating shaft is rotatably installed on one side surface of the fixed bracket. A driven gear is fixedly sleeved in the middle of the rotating shaft.

[0013] In at least some embodiments, a lower toothed plate is meshed below the driven gear. The lower toothed plate is fixedly connected to the connecting bracket. An upper toothed plate is meshed above the driven gear. A loading block is fixedly connected to the upper surface of the upper toothed plate. A second limit sleeve is fixedly connected to the upper surface of the loading block. One end of the second limit sleeve is fixedly connected to a fixing plate. A side positioning frame is fixedly connected to one side of the fixing plate. The side positioning frame and the fixing plate are located above the transverse support plate. The other end of the second limit sleeve is movably installed with an installation rod. One end of the installation rod is fixedly connected to a second fixing seat. The second fixing seat is fixedly connected to the upper surface of the connecting bracket.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] In the present invention, when a thin workpiece needs to be processed, the workpiece switching mechanism can drive the mounting plate to move horizontally. The mounting plate, in cooperation with the limiting frame, is limited by the telescopic rod and the first limiting sleeve, and then drives the mounting frame to move to the middle of the sound insulation housing. The mounting frame can push the connecting bracket to move to both sides through the transmission rod, realizing the switching between the horizontal support plate and the multi-point support plate. Then, through the horizontal support plate and the multi-point support plate, the effect of laser cutting different workpieces can be achieved. The positioning frame can be driven by the rotating body adjusting screw to position the thin workpiece on the multi-point support plate, thereby improving the working efficiency of the laser cutting device. Moreover, when dealing with workpieces of different thicknesses, different workpieces can be positioned, improving the practicability and versatility of the laser cutting device.

[0016] In the present invention, when a workpiece with a large width needs to be processed, the width adjustment assembly can drive the fixed brackets and the horizontal support plate on both sides to move horizontally along the sliding groove, adjusting the distance between the two fixed brackets and the horizontal support plate, achieving the function of adjusting according to the width of the workpiece. During the horizontal movement, through the meshing of the driven gear, the upper toothed plate and the lower toothed plate, the two sides of the large-width workpiece can also be positioned in cooperation with the side top frame. First, the two fixed brackets and the horizontal support plate can be combined into a whole to assist in supporting and positioning the workpiece. Second, by adjusting the distance between the two fixed brackets and the horizontal support plate, not only can it be adaptively adjusted according to the width of the workpiece, but also the large-width workpiece can be positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 9 is a three-dimensional schematic diagram of one side of the overall workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0018] Figure 2 FIG. 13 is a three-dimensional schematic diagram of the other side of the overall workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0019] Figure 3 FIG. 17 is a three-dimensional schematic diagram of one side of the cross-section of the sound insulation housing of the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0020] Figure 4 FIG. 21 is a three-dimensional schematic diagram of the other side of the cross-section of the sound insulation housing of the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0021] Figure 5 FIG. 25 is a three-dimensional schematic diagram of one side of the combined workpiece switching mechanism and width adjustment assembly of the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0022] Figure 6This is a three-dimensional schematic diagram of the combination of the workpiece switching mechanism and the width adjustment component on the other side in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0023] Figure 7 This is an overall three-dimensional schematic diagram of the width adjustment component in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0024] Figure 8 This is a partial three-dimensional schematic diagram of the width adjustment component in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0025] Figure 9 This is a three-dimensional schematic diagram of the connecting bracket, fixed bracket and transverse support plate in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0026] Figure 10 This is a partially enlarged three-dimensional schematic diagram of the electric push rod and its surrounding structure in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0027] Figure 11 This is an overall three-dimensional schematic diagram of the workpiece switching mechanism in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0028] Figure 12 This is a partial three-dimensional schematic diagram of the workpiece switching mechanism in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0029] Figure 13 This is a partial three-dimensional schematic diagram of the other side of the workpiece switching mechanism in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention;

[0030] Figure 14 This is a partially enlarged three-dimensional schematic diagram of the connection position of the transmission rod, sphere and ball seat in the workpiece positioning device of a three-dimensional laser cutting device proposed by the present invention.

[0031] Legend Explanation: 100, device housing component; 200, laser cutting mechanism; 300, workpiece switching mechanism; 400, width adjustment component; 101, sound insulation housing; 102, bottom support plate; 103, support leg; 104, ventilation hole; 105, ventilation fan; 106, control panel; 107, cover plate; 201, X-axis drive device; 202, Y-axis drive device; 203, slider; 204, laser emission device; 205, laser cutting head; 301, special-shaped fixing plate; 302, telescopic rod; 303, installation frame; 304, multi-point support tray; 305, first limit sleeve; 306, adjusting screw; 307, connecting rod; 308, positioning frame; 309, rotating part; 310, connecting sheet metal; 311, side connecting plate; 312, mounting plate; 313, collection hole; 314, collection fan; 315, support frame; 316, limit rod; 317, drive motor; 318, threaded mating sleeve; 319, drive lead screw; 320, ball seat; 321, sphere; 322, transmission rod; 323, limit frame; 324, first fixed seat; 401, load-bearing rod; 402, mounting sleeve; 403, connecting bracket; 404, fixed bracket; 405, transverse support tray; 406, chute; 407, mounting rod; 408, second fixed seat; 409, lower toothed plate; 410, electric push rod; 412, side positioning frame; 413, fixing plate; 414, push block; 415, mounting bracket; 416, rotating shaft; 417, driven gear; 418, upper toothed plate; 419, loading block; 420, second limit sleeve. Detailed Implementation Manner

[0032] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0034] In the prior art, during the process of three-dimensional laser cutting of workpieces, it is necessary to position the workpiece before laser cutting. If the workpiece is not positioned, workpiece displacement will occur, affecting the accuracy of laser cutting. During the positioning process of the workpiece, due to the need to face laser cutting of workpieces with different thicknesses, when processing thin workpieces, the traditional three-dimensional laser cutting device cannot effectively support the thin workpieces, resulting in the phenomenon of cutting deviation of thin workpieces during the cutting process. At the same time, when processing other workpieces, if the width of the workpiece is too wide and the traditional positioning mechanism cannot be adjusted according to the width of the workpiece, it cannot effectively position the wide workpiece, thus affecting the processing efficiency of the three-dimensional laser cutting device.

[0035] The purpose of the present invention is at least that when the laser cutting equipment is processing a workpiece, affected by the thickness of the workpiece itself, when the workpiece is thin, the workpiece switching mechanism 300 drives the lateral support plates 405 on both sides to move outward, and the multi-point support plate 304 will move to the middle of the sound insulation housing 101. Since the multi-point support plate 304 has more contact points than the lateral support plates 405, the contact points of the multi-point support plate 304 can better fit the lower surface of the thin workpiece and support it, preventing deviation during the processing. Subsequently, in cooperation with the positioning frame 308, the processing position of the thin workpiece can be positioned, so that the lower surface of the thin workpiece better fits the contact points of the multi-point support plate 304, thereby improving the efficiency and stability of laser cutting, effectively preventing the phenomenon of displacement deviation of the thin workpiece during the processing of the thin workpiece. Then, through the width adjustment component 400, when processing workpieces with normal thickness and relatively thick thickness, the two lateral support plates 405 can be moved towards the middle and combined into a whole to process workpieces with normal thickness and relatively thick thickness. At the same time, by adjusting the distance between the two lateral support plates 405, the width adjustment effect can also be achieved according to the width of the workpiece, thereby making the positioning device highly versatile and capable of adjusting in the face of workpieces with different widths and thicknesses, improving the practicality and processing efficiency of the device.

[0036] Example, according to Figure 1 - Figure 14 ,such as Figures 1-4As shown in the figure, an embodiment of the present invention provides a workpiece positioning device for a three-dimensional laser cutting device, including a device housing member 100 and a laser cutting mechanism 200. The laser cutting mechanism 200 is installed inside the device housing member 100. A workpiece switching mechanism 300 is arranged below the laser cutting mechanism 200. The workpiece switching mechanism 300 can position thin workpieces during the switching process. Width adjustment components 400 are connected to both sides of the workpiece switching mechanism 300. The width adjustment components 400 can position wide workpieces during the process of adjusting the width. The width adjustment component 400 includes a bearing rod 401. Installation sleeves 402 are movably installed at both ends of the bearing rod 401. A connecting bracket 403 is fixedly connected to the upper surface of each installation sleeve 402. Chutes 406 are arranged on both sides of the connecting bracket 403. Fixed brackets 404 are movably installed in the chutes 406. A plurality of uniformly distributed transverse support plates 405 are fixedly connected inside the fixed brackets 404. The workpiece switching mechanism 300 includes a special-shaped fixing plate 301. The special-shaped fixing plate 301 is fixedly connected to the middle of the lower surface of the bearing rod 401. One-sided two sides of one end of the special-shaped fixing plate 301 are provided with first limiting sleeves 305. Expansion rods 302 are telescopically installed in each first limiting sleeve 305. A first fixing seat 324 is fixedly sleeved on the upper end of each expansion rod 302. A limiting frame 323 is fixedly connected to one side of the first fixing seat 324. An installation frame 303 is arranged on one side of the limiting frame 323. A plurality of uniformly distributed multi-point support plates 304 are fixedly connected to the middle of the installation frame 303.

[0037] In this embodiment, multi-point support plates 304 and transverse support plates 405 are respectively installed through the workpiece switching mechanism 300 and the width adjustment component 400. The multi-point support plate 304 has more contact points than the transverse support plate 405. Therefore, the multi-point support plate 304 is more suitable for supporting thin workpieces, and the transverse support plate 405 is more suitable for supporting workpieces with normal thickness or relatively thick thickness. By adjusting between the multi-point support plate 304 and the transverse support plate 405 through the workpiece switching mechanism 300, switching can be performed according to different workpieces, thereby improving the versatility and practicality of the workpiece positioning device. Moreover, the distance between the two transverse support plates 405 can be adjusted through the width adjustment component 400. When facing wide workpieces, adjustment can be performed and the workpieces can be positioned at the same time.

[0038] Such as Figures 1-2As shown in the figure, the device housing member 100 includes a sound-insulating housing 101. A bottom support plate 102 is fixedly connected to the lower surface of the sound-insulating housing 101. Support legs 103 are fixedly connected to the four corners of the lower surface of the bottom support plate 102. An opening is provided in the middle of the upper surface of the sound-insulating housing 101. A cover plate 107 is rotatably installed at the opening of the sound-insulating housing 101 through a hinge. A control panel 106 is fixedly connected to one side of the upper surface of the sound-insulating housing 101. A plurality of ventilation holes 104 are evenly distributed behind the sound-insulating housing 101. An air-ventilating fan 105 is installed in each ventilation hole 104. The laser cutting mechanism 200 includes an X-axis driving device 201. The X-axis driving device 201 is installed on both sides of the inner wall of the sound-insulating housing 101. A slider 203 is installed on each X-axis driving device 201. A Y-axis driving device 202 is installed between the two sliders 203. A laser emitting device 204 is installed in the middle of the Y-axis driving device 202. A laser cutting head 205 is installed on one side of the laser emitting device 204;

[0039] In the embodiment of the present invention, the workpiece switching mechanism 300 and the width adjustment assembly 400 are started to switch according to the width and thickness of the workpiece. Through this, different workpieces can be positioned. Subsequently, starting the laser emitting device 204 can make the cutting laser emit from the laser cutting head 205. Then, the X-axis driving device 201 and the Y-axis driving device 202 can drive the laser cutting head 205 to move, so as to cut out the required workpiece.

[0040] As Figures 11-13 shown in the figure, the upper end of the telescopic rod 302 is threadedly engaged with an adjusting screw 306. The upper end of the adjusting screw 306 is fixedly connected with a knob. A connecting rod 307 is rotatably installed on each adjusting screw 306. One end of the connecting rod 307 is fixedly connected with a positioning frame 308. The positioning frame 308 is located above the multi-point support plate 304. Rotating members 309 are rotatably installed at the four corners of the lower surface of the installation frame 303. Each rotating member 309 is rotatably installed with a connecting sheet metal 310. Another group of rotating members 309 is installed at the lower end of each connecting sheet metal 310. A side connecting plate 311 is rotatably installed inside the other group of rotating members 309. An installation plate 312 is fixedly connected between the side connecting plates 311. Four collecting holes 313 are provided on the installation plate 312. A collecting fan 314 is installed in each collecting hole 313. A support frame 315 is fixedly connected to the middle of the lower surface of each side connecting plate 311. Limiting rods 316 are movably installed at both ends of the support frame 315. A driving lead screw 319 is provided in the middle of the two limiting rods 316. One end of the driving lead screw 319 is fixedly connected with a driving motor 317. The driving lead screw 319 is threadedly engaged with a threaded mating sleeve 318 through the thread on its surface. The threaded mating sleeve 318 is arranged in the middle of the support frame 315. The limiting rods 316 and the driving motor 317 are fixedly connected to one side surface of the special-shaped fixing plate 301;

[0041] In this embodiment, when a thin workpiece needs to be processed, the driving motor 317 is started to drive the driving lead screw 319 to rotate. The driving lead screw 319 is threadedly engaged with the threaded mating sleeve 318, and thus can push the support frame 315 to move along the driving lead screw 319 and the limiting rod 316. Since the support frame 315, the mounting plate 312 and the side connecting plate 311 are fixedly connected together, and the outer side of the side connecting plate 311 is connected to the mounting frame 303 through the rotating member 309 and the connecting sheet metal 310, the mounting frame 303 can be driven to move synchronously with the support frame 315. When the mounting frame 303 moves into the limiting frame 323, since the limiting frame 323 is telescopically mounted in the first limiting sleeve 305 through the first fixing seat 324 and the telescopic rod 302, the movement of the mounting frame 303 can be limited. When one end of the mounting frame 303 is inserted into the limiting frame 323, the mounting frame 303 can rotate around the rotating member 309 of the side connecting plate 311, and the side connecting plate 311 can abut against the mounting frame 303 to push the mounting frame 303 to rise until it is flush with the fixed support 404. The telescopic rod 302 will rise in the first limiting sleeve 305 following the mounting frame 303. Subsequently, the knob is rotated to adjust the adjusting screw 306. The adjusting screw 306 is threadedly engaged with the telescopic rod 302, and thus can drive the positioning frame 308 to move to the upper surface of the multi-point support plate 304 inside the mounting frame 303 through the connecting rod 307 to position the thin workpiece, so that the thin workpiece contacts multiple contact points of the multi-point support plate 304, and the lower surface of the thin workpiece better fits the contact points of the multi-point support plate 304, thereby improving the efficiency and stability of laser cutting, and effectively preventing the phenomenon of displacement and deviation of the thin workpiece during the processing of the thin workpiece. During the processing, the collecting fan 314 is started to collect and convey the fine debris generated during the laser cutting process to the bottom of the sound insulation housing 101, preventing the fine debris from affecting the efficiency of laser cutting.

[0042] Reference Figure 14 , two sides of one end of the mounting frame 303 are rotatably connected with ball seats 320. There are four ball seats 320. The other two ball seats 320 are rotatably mounted at one end of the mounting sleeve 402. Each ball seat 320 is internally mounted with a sphere 321. A transmission rod 322 is fixedly connected between the two spheres 321 on the same side;

[0043] In this embodiment, when the installation frame 303 moves, since the two side surfaces of the installation frame 303 are connected to the two installation sleeves 402 through the ball seats 320, the spheres 321 and the transmission rods 322, and the transmission rods 322 can support the two installation sleeves 402 on both sides, pushing the installation sleeves 402 to move outward along the bearing rod 401, thereby pushing the two connecting brackets 403 on both sides to move to both sides. In this way, it is convenient for the installation frame 303 to move between the two connecting brackets 403, facilitating the positioning and processing of workpieces. At the same time, the distance between the two connecting brackets 403 can be shortened, achieving the effect of being adjustable according to workpieces with different thicknesses and widths and being able to position different workpieces, making the device have strong versatility and improving the working efficiency of the device.

[0044] Refer to Figures 7-10 As shown, one end of the upper surface of the connecting bracket 403 is fixedly connected with a push rod mounting seat. One side of the push rod mounting seat is fixedly connected with an electric push rod 410. The output shaft of the electric push rod 410 is fixedly connected with a push block 414. The push block 414 is fixedly connected to one side surface of the fixed bracket 404. One side of the push block 414 is fixedly connected with two mounting brackets 415. One end of the mounting bracket 415 is rotatably installed with a rotating shaft 416. One end of the rotating shaft 416 is rotatably installed on one side surface of the fixed bracket 404. A driven gear 417 is fixedly sleeved in the middle of the rotating shaft 416. The driven gear 417 is meshed with a lower toothed plate 409 below. The lower toothed plate 409 is fixedly connected to the connecting bracket 403. The driven gear 417 is meshed with an upper toothed plate 418 above. The upper surface of the upper toothed plate 418 is fixedly connected with a loading block 419. The upper surface of the loading block 419 is fixedly connected with a second limit sleeve 420. One end of the second limit sleeve 420 is fixedly connected with a fixing plate 413. One side of the fixing plate 413 is fixedly connected with a side positioning frame 412. The side positioning frame 412 and the fixing plate 413 are located above the transverse support plate 405. The other end of the second limit sleeve 420 is movably installed with a mounting rod 407. One end of the mounting rod 407 is fixedly connected with a second fixing seat 408. The second fixing seat 408 is fixedly connected to the upper surface of the connecting bracket 403;

[0045] In this embodiment, when processing normal or relatively thick workpieces, the mounting frame 303 will be located below the fixed brackets 404, and there is a certain distance between the two fixed brackets 404. When the electric push rod 410 is started, since the output shaft of the electric push rod 410 is connected to one side of the fixed bracket 404 through the push block 414, and the fixed bracket 404 is installed in the sliding groove 406 of the connecting bracket 403, the fixed bracket 404 can be pushed to move inward along the sliding groove 406, thereby adjusting the distance between the two fixed brackets 404, so as to process workpieces of different widths. At the same time, since the push block 414 is provided with a driven gear 417 through the mounting bracket 415 and the rotating shaft 416, and the lower and upper parts of the driven gear 417 are respectively engaged with the lower toothed plate 409 and the upper toothed plate 418, the movement speed of the upper toothed plate 418 can be slowed down through the meshing linkage of the three, so that when the fixed brackets 404 are spliced, the side positioning frame 412 and the second limiting sleeve 420 are driven to move along the mounting rod 407 towards the middle of the equipment. The movement of the side positioning frame 412 will be slower than that of the fixed bracket 404. It can not only be adjusted according to the width of the workpiece, but also be positioned, which is convenient for subsequent laser cutting of the workpiece after assisting in positioning the workpiece, improving the working efficiency and practicability of the equipment.

[0046] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A three-dimensional laser cutting equipment workpiece positioning device, comprising a device housing component (100) and a laser cutting mechanism (200), characterized in that: A laser cutting mechanism (200) is installed in the device housing component (100); a workpiece switching mechanism (300) is arranged below the laser cutting mechanism (200); the workpiece switching mechanism (300) can position a thin workpiece during the switching process; width adjustment components (400) are connected to both sides of the workpiece switching mechanism (300); the width adjustment components (400) can position a wide workpiece during the width adjustment process; The width adjustment assembly (400) comprises a bearing rod (401), mounting sleeves (402) are movably mounted at both ends of the bearing rod (401), a connecting bracket (403) is fixedly connected to the upper surface of each mounting sleeve (402), sliding grooves (406) are arranged on both sides of the connecting bracket (403), a fixed bracket (404) is movably mounted in the sliding groove (406), and a plurality of evenly distributed transverse support plates (405) are fixedly connected in the fixed bracket (404); One end of the upper surface of the connecting bracket (403) is fixedly connected to a push rod mounting seat, one side of the push rod mounting seat is fixedly connected to an electric push rod (410), the output shaft of the electric push rod (410) is fixedly connected to a push block (414), the push block (414) is fixedly connected to a surface of one side of the fixed bracket (404), one side of the push block (414) is fixedly connected to two mounting brackets (415), one end of the two mounting brackets (415) is rotatably mounted with a rotating shaft (416), one end of the rotating shaft (416) is rotatably mounted on a surface of one side of the fixed bracket (404), and a driven gear (417) is fixedly sleeved in the middle of the rotating shaft (416); The driven gear (417) is meshedly connected with a lower tooth plate (409) below, and the lower tooth plate (409) is fixedly connected to the connecting bracket (403). The driven gear (417) is meshedly connected with an upper tooth plate (418) above, and a loading block (419) is fixedly connected to the upper surface of the upper tooth plate (418). The upper surface of the loading block (419) is fixedly connected with a second limiting sleeve (420), and one end of the second limiting sleeve (420) is fixedly connected to a fixed A fixed plate (413), one side of the fixed plate (413) is fixedly connected to a side positioning frame (412), the side positioning frame (412) and the fixed plate (413) are located above the transverse support plate (405), the other end of the second limiting sleeve (420) is movably mounted with a mounting rod (407), one end of the mounting rod (407) is fixedly connected to a second fixing seat (408), and the second fixing seat (408) is fixedly connected to the upper surface of the connecting bracket (403); The workpiece switching mechanism (300) comprises a special-shaped fixing plate (301), the special-shaped fixing plate (301) is fixedly connected to the middle part of the lower surface of the bearing rod (401), a No. 1 limiting sleeve (305) is arranged on both sides of one end of the special-shaped fixing plate (301), a telescopic rod (302) is telescopically installed in each of the No. 1 limiting sleeves (305), a No. 1 fixing seat (324) is fixedly sleeved on the upper end of each of the telescopic rods (302), one side of the No. 1 fixing seat (324) is fixedly connected to a limiting frame (323), one side of the limiting frame (323) is provided with an installation frame (303), and a plurality of evenly distributed multi-point support plates (304) are fixedly connected to the middle of the installation frame (303); Rotating parts (309) are rotatably mounted at the four corners of the lower surface of the mounting frame (303), each of the rotating parts (309) is rotatably mounted with a connecting sheet metal (310), another group of rotating parts (309) is mounted at the lower end of each connecting sheet metal (310), a side connecting plate (311) is rotatably mounted on the inner side of the other group of rotating parts (309), a mounting plate (312) is fixedly connected between the side connecting plates (311), the mounting plate (312) is provided with four collecting holes (313), and a collecting fan (314) is mounted in each of the collecting holes (313); A support frame (315) is fixedly connected to the middle of the lower surface of each side connecting plate (311), and limit rods (316) are movably installed at both ends of the support frame (315). A driving screw (319) is arranged in the middle of the two limit rods (316), and one end of the driving screw (319) is fixedly connected to a driving motor (317). The driving screw (319) is connected to a threaded matching sleeve (318) through surface thread engagement, and the threaded matching sleeve (318) is arranged in the middle of the support frame (315), and the limit rod (316) and the driving motor (317) are fixedly connected to a side surface of the special-shaped fixing plate (301).

2. A workpiece positioning device for three-dimensional laser cutting equipment according to claim 1, characterized in that: The device housing component (100) comprises a soundproof housing (101), a bottom support plate (102) being fixedly connected to the lower surface of the soundproof housing (101), support legs (103) being fixedly connected at four corners of the lower surface of the bottom support plate (102), an opening being arranged in the middle of the upper surface of the soundproof housing (101), a cover plate (107) being rotatably mounted at the opening of the soundproof housing (101) through a hinge, a control panel (106) being fixedly connected to one side of the upper surface of the soundproof housing (101), and a plurality of evenly distributed ventilation holes (104) being arranged at the rear of the soundproof housing (101), and a dredging fan (105) being mounted in each ventilation hole (104).

3. A workpiece positioning device for three-dimensional laser cutting equipment according to claim 2, characterized in that: The laser cutting mechanism (200) comprises an X-axis driving device (201), the X-axis driving device (201) being mounted on both sides of the inner wall of the soundproof housing (101), each of the X-axis driving devices (201) being mounted with a slider (203), a Y-axis driving device (202) being mounted between two of the sliders (203), a laser emitting device (204) being mounted in the middle of the Y-axis driving device (202), and a laser cutting head (205) being mounted on one side of the laser emitting device (204).

4. The workpiece positioning device for three-dimensional laser cutting equipment according to claim 1, characterized in that: The upper end of the telescopic rod (302) is connected to an adjusting screw (306) through threaded engagement, and the upper end of the adjusting screw (306) is fixedly connected to a knob, and each adjusting screw (306) is rotatably mounted with a connecting rod (307), and one end of the connecting rod (307) is fixedly connected to a positioning frame (308), and the positioning frame (308) is located above the multi-point support plate (304).

5. A three-dimensional laser cutting equipment workpiece positioning device according to claim 4, characterized in that: Ball seats (320) are rotatably connected to both sides of one end of the installation frame (303), four ball seats (320) are provided, and the other two ball seats (320) are rotatably installed on one end of the installation sleeve (402), a ball (321) is installed in each ball seat (320), and a transmission rod (322) is fixedly connected between the two balls (321) on the same side.

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