A kind of auxiliary positioning device for tablet laser proofing

Abstract

The utility model discloses a kind of auxiliary positioning devices for sheet punching laser proofing, belong to sheet punching proofing technical field, and its technical scheme main points include workbench, the front side of the workbench top is equipped with positioning mechanism, the top of the workbench is fixedly connected with lifting mechanism, the bottom of the lifting mechanism is equipped with several laser proofing heads, the front side of the workbench is equipped with PLC controller, the left side of the workbench top is welded with support rod, the right side of the support rod is equipped with detection camera, positioning mechanism can produce adsorption force to ferromagnetic sheet by adding electromagnet in V-shaped groove, make up the deficiency that traditional V-shaped groove and positioning column only rely on mechanical contact positioning, especially suitable for light, thin, easily deformed sheet, prevent position deviation caused by vibration or airflow in laser proofing process, significantly improve positioning stability, the pressure sensor in limiting groove can real-time monitoring sheet and the contact pressure of V-shaped groove.

Description

Technical Field

[0001] This utility model relates to the field of stamping and prototyping technology, and in particular to an auxiliary positioning device for laser prototyping of stamping. Background Technology

[0002] Laser prototyping auxiliary positioning device is mainly used in laser processing scenarios for sheet metal stamping in the fields of electronics, machinery, aerospace and other fields. Laser prototyping has extremely high requirements for positional accuracy, usually reaching ±0.01mm level.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing auxiliary positioning devices typically only use positioning posts and V-grooves for positioning, lacking a structure for magnetic auxiliary positioning. This makes it difficult to provide a sufficiently stable and reliable positioning effect by relying solely on positioning posts and V-grooves, failing to effectively compensate for the shortcomings of positioning posts and V-grooves in positioning certain special workpieces, thereby reducing positioning accuracy.

[0004] To address this, an auxiliary positioning device for laser prototyping of sheet metal is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary positioning device for laser prototyping of stamping sheets. This device solves the problem that existing auxiliary positioning devices for stamping sheets typically only use positioning posts and V-grooves for positioning, lacking a structure for magnetic auxiliary positioning. As a result, relying solely on positioning posts and V-grooves makes it difficult to provide a sufficiently stable and reliable positioning effect, and cannot effectively compensate for the shortcomings of positioning posts and V-grooves when positioning certain special workpieces, thereby reducing positioning accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary positioning device for laser prototyping of sheet metal, comprising a worktable, a positioning mechanism provided on the front side of the top of the worktable, a lifting mechanism fixedly connected to the top of the worktable, a plurality of laser prototyping heads installed at the bottom of the lifting mechanism, a PLC controller installed on the front side of the worktable, a support rod welded to the left side of the top of the worktable, and a detection camera installed on the right side of the support rod;

[0007] The positioning mechanism includes a V-groove, a positioning post, six mounting slots, an electromagnet, a limiting slot, and a pressure sensor. The V-groove is located on the front side of the top of the worktable. The positioning post is welded to the inside of the V-groove. The mounting slots are located inside the V-groove. The electromagnet is installed inside the mounting slot. The limiting slot is located inside the V-groove. The pressure sensor is installed inside the limiting slot.

[0008] Preferably, the lifting mechanism includes a support shell, a lead screw, a threaded block, a servo motor, a limit rod, and a mounting plate, with the support shell fixedly connected to the top of the worktable.

[0009] Preferably, the lead screw is rotatably connected to the inner side of the support shell, the top of the lead screw is connected to a connecting shaft via a flat key, the threaded block is threadedly connected to the surface of the lead screw, the servo motor is mounted on the top of the support shell, and the output end of the servo motor at the bottom passes through the support shell and is fixedly connected to the top of the connecting shaft.

[0010] Preferably, the limiting rod is welded to the front side of the threaded block, the mounting plate is welded to the bottom of the front side of the limiting rod, and the laser prototyping head is installed at the bottom of the mounting plate.

[0011] Preferably, a fixing rod is welded to the right side of the top of the workbench, and an LED light is installed on the left side of the top of the fixing rod, with the LED light pointing downwards at a 45-degree angle.

[0012] Preferably, a placement tray is provided on the left side of the front side of the top of the workbench, and the inner side of the placement tray is coated with an anti-corrosion coating.

[0013] Preferably, the front and rear sides of the limiting rod are fixedly connected with reinforcing rings, and the surface of the reinforcing rings is coated with anti-corrosion coating.

[0014] Preferably, a support column is fixedly connected to the chamfered corner of the bottom of the workbench, and the bottom of the support column is engraved with anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The positioning mechanism of this application, by adding an electromagnet in the V-groove, can generate an attraction force on the ferromagnetic punch, which makes up for the shortcomings of the traditional positioning by mechanical contact between the V-groove and the positioning post. It is especially suitable for thin and easily deformable punches, preventing positional displacement caused by vibration or airflow during laser prototyping, and significantly improving positioning stability. The pressure sensor in the limiting groove can monitor the contact pressure between the punch and the V-groove in real time. The magnetic force of the electromagnet is adjusted by the feedback of the PLC controller to achieve adaptive positioning, ensuring that punches of different thicknesses or materials can obtain the best positioning effect. The combination design of the V-groove and the positioning post retains the traditional positioning advantages for round and cylindrical punches, while the magnetic attraction function is extended to irregular or non-circular punches, improving the applicability of the device.

[0017] 2. The servo motor in the lifting mechanism of this application drives the lead screw to rotate, which in turn moves the threaded block along the lead screw axis to achieve the lifting of the laser prototyping head. Compared with traditional cylinder or hydraulic lifting, the lead screw transmission has higher positioning accuracy and meets the height requirements of precision laser prototyping. The servo motor is linked with the PLC controller and can automatically adjust the height of the laser prototyping head according to the thickness of the stamping, without manual intervention, shortening the changeover time and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the auxiliary positioning device for laser prototyping of sheet metal according to this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the electromagnet of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the LED lighting lamp of this utility model.

[0023] In the diagram, 1. Workbench; 2. Positioning mechanism; 21. V-groove; 22. Positioning column; 23. Mounting groove; 24. Electromagnet; 25. Limiting groove; 26. Pressure sensor; 3. Lifting mechanism; 31. Support shell; 32. Lead screw; 33. Threaded block; 34. Servo motor; 35. Limiting rod; 36. Mounting plate; 4. Laser prototyping head; 5. PLC controller; 6. Support rod; 7. Detection camera; 8. Fixing rod; 9. LED lighting; 10. Placement plate; 11. Reinforcing ring; 12. Supporting column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] An auxiliary positioning device for laser prototyping of sheet metal includes a worktable 1, a positioning mechanism 2 is provided on the front side of the top of the worktable 1, a lifting mechanism 3 is fixedly connected to the top of the worktable 1, a plurality of laser prototyping heads 4 are installed at the bottom of the lifting mechanism 3, a PLC controller 5 is installed on the front side of the worktable 1, a support rod 6 is welded to the left side of the top of the worktable 1, and a detection camera 7 is installed on the right side of the support rod 6.

[0027] The positioning mechanism 2 includes a V-groove 21, a positioning post 22, six mounting slots 23, an electromagnet 24, a limiting slot 25, and a pressure sensor 26. The V-groove 21 is located on the front side of the top of the worktable 1. The positioning post 22 is welded to the inside of the V-groove 21. The mounting slots 23 are located on the inside of the V-groove 21. The electromagnet 24 is installed on the inside of the mounting slot 23. The limiting slot 25 is located on the inside of the V-groove 21. The pressure sensor 26 is installed on the inside of the limiting slot 25.

[0028] In this embodiment: the workbench 1 supports and limits the positioning mechanism 2, lifting mechanism 3, PLC controller 5, and support rod 6. The laser prototyping head 4 performs laser prototyping operations. Multiple laser prototyping heads 4 can improve prototyping efficiency. Different types of laser prototyping heads 4 can be installed according to different prototyping needs, achieving diversified prototyping functions. The PLC controller 5, as the control core of the entire device, receives pressure data from the pressure sensor 26, image information from the detection camera 7, etc., and performs intelligent control of the positioning mechanism 2, lifting mechanism 3, etc., such as controlling the magnetic force of the electromagnet 24 according to the stamping position, and controlling the lifting and lowering of the laser prototyping head 4 according to prototyping needs, realizing automated operation of the device. The support rod 6 provides mounting support for the detection camera 7, ensuring the fixed position of the detection camera 7, enabling it to stably acquire and detect images of the stamping. The detection camera 7 acquires image information of the stamping in real time to detect whether the position and posture of the stamping meet the prototyping requirements, and transmits the image data to the PLC controller, providing feedback information for the positioning and prototyping process, realizing closed-loop control, and improving prototyping accuracy and quality. V-groove 2... 1. It can quickly position circular or cylindrical blanks. Utilizing the structural characteristics of the V-groove 21, it can automatically center the blank and limit its horizontal displacement, providing a basic positioning reference for the blank. The positioning post 22 further restricts the movement and rotation of the blank within the V-groove 21. Cooperating with the V-groove 21, it ensures the positional accuracy of the blank in the plane. The mounting slot 23 is used to install the electromagnet 24, which can make the magnetic attraction effect generated by the electromagnet 24 evenly distributed. The electromagnet 24 generates magnetic force to assist in the positioning of the ferromagnetic blank, which can effectively prevent the blank from being interfered with by external forces during the laser prototyping process. Displacement is generated by disturbance, which is especially suitable for thin and easily deformable stampings, improving the reliability of positioning. At the same time, the magnetic force of the electromagnet 24 is controllable and can be adapted to stampings of different specifications. The limiting groove 25 provides installation space for the pressure sensor 26 and ensures that the pressure sensor 26 can accurately sense the pressure change when the stamping contacts the V-groove 21. The pressure sensor 26 monitors the pressure between the stamping and the positioning mechanism 2 in real time and feeds the pressure data back to the PLC controller 5 so that the magnetic force of the electromagnet 24 can be adjusted according to the pressure situation or the stamping can be judged as to whether it is correctly positioned, so as to achieve adaptive positioning and ensure the sample making accuracy.

[0029] Specifically, such as Figure 4As shown, the lifting mechanism 3 includes a support shell 31, a lead screw 32, a threaded block 33, a servo motor 34, a limit rod 35, and a mounting plate 36. The support shell 31 is fixedly connected to the top of the worktable 1.

[0030] Specifically, such as Figure 4 As shown, the lead screw 32 is rotatably connected to the inner side of the support housing 31. The top of the lead screw 32 is connected to the connecting shaft via a flat key. The threaded block 33 is threadedly connected to the surface of the lead screw 32. The servo motor 34 is mounted on the top of the support housing 31. The output end of the servo motor 34 at the bottom passes through the support housing 31 and is fixedly connected to the top of the connecting shaft.

[0031] Specifically, such as Figure 4 As shown, the limiting rod 35 is welded to the front side of the threaded block 33, the mounting plate 36 is welded to the bottom of the front side of the limiting rod 35, and the laser prototyping head 4 is installed at the bottom of the mounting plate 36.

[0032] In this embodiment: the support shell 31 supports and limits the lead screw 32, threaded block 33, and servo motor 34. The lead screw 32 and threaded block 33 cooperate to convert the rotational motion of the servo motor 34 into linear motion, realizing the vertical lifting and lowering of the laser prototyping head 4. The threaded block 33 moves along the axis of the lead screw 32 under the drive of the lead screw 32, driving the limit rod 35 and the mounting plate 36 to move, thereby realizing the adjustment of the height position of the laser prototyping head 4. The servo motor 34 provides power to the lead screw 32 through the connecting shaft, and can accurately control the rotation angle and speed of the lead screw 32 according to the instructions of the PLC controller 5, thereby accurately adjusting the lifting and lowering height of the laser prototyping head 4 and realizing automated control. The limit rod 35 can support and limit the mounting plate 36, and can drive the mounting plate 36 to move up and down synchronously. The mounting plate 36 is used to install and fix the laser prototyping head 4, providing a stable mounting platform for the laser prototyping head 4.

[0033] Specifically, such as Figure 5 As shown, a fixing rod 8 is welded to the right side of the top of the workbench 1, and an LED light 9 is installed on the left side of the top of the fixing rod 8. The LED light 9 is pointing downwards at a 45-degree angle.

[0034] Specifically, such as Figure 1 As shown, a placement tray 10 is provided on the left side of the front side of the top of the workbench 1, and the inner side of the placement tray 10 is coated with anti-corrosion paint.

[0035] In this embodiment: a fixing rod 8 is set to install LED lights, and LED lights 9 are set to provide illumination for the stamping positioning and laser prototyping areas, ensuring that the inspection camera 7 can clearly capture images. The LED lights 9 are set to be installed at a 45-degree angle downwards, providing sufficient and uniform illumination, reducing the impact of shadows on the image acquisition of the inspection camera 7, and improving image clarity and inspection accuracy. A placement tray 10 is set to place the stampings to be processed or processed. An anti-corrosion coating is applied to prevent corrosion when the stampings come into contact with the placement tray 10, protecting the surface quality of the stampings.

[0036] Specifically, such as Figure 4 As shown, the front and rear sides of the limiting rod 35 are fixedly connected with reinforcing rings 11, and the surface of the reinforcing rings 11 is coated with anti-corrosion paint.

[0037] Specifically, such as Figure 5 As shown, a support column 12 is fixedly connected to the chamfer at the bottom of the workbench 1, and the bottom of the support column 12 is engraved with anti-slip texture.

[0038] In this embodiment: by setting a reinforcing ring 11, the structural strength of the limiting rod 35 is enhanced, preventing the limiting rod 35 from deforming or being damaged when subjected to force. By setting an anti-corrosion coating, the service life of the reinforcing ring 11 can be extended, reducing maintenance costs. By setting a support column 12, support is provided for the workbench 1. By setting an anti-slip texture, the friction with the ground is increased, preventing the device from sliding or shaking during operation.

[0039] Working principle: First, the operator places the blank to be punched into the V-groove 21. The circular blank can be inserted into the positioning hole and the positioning post 22. After the initial positioning is completed, the bottom of the blank will trigger the pressure sensor 26. The pressure sensor 26 transmits the signal to the PLC controller 5. After receiving the signal, the PLC controller 5 controls the electromagnet 24 to start. The electromagnet 24 enhances the positioning stability through magnetic attraction. At this time, the detection camera 7 collects the image information of the blank in real time and transmits it to the PLC controller 5. After analysis, it is determined whether the position and posture of the blank meet the requirements. Afterwards, the PLC controller 5 sends a command to the servo motor 34 based on the detection results. The servo motor 34 drives the lead screw 32 to rotate. Through the transmission between the lead screw 32 and the threaded block 33, the limit rod 35, the mounting plate 36, and the laser prototyping head 4 are driven to rise and fall vertically, adjusting the laser prototyping head 4 to a suitable height. During this process, the LED lighting lamp 9 provides sufficient illumination to the blank to ensure that the detection camera 7 captures a clear image. Finally, multiple laser prototyping heads 4 perform prototyping operations according to the preset program. After the processing is completed, the operator can place the blank in the placement tray 10 for storage.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary positioning device for laser prototyping of sheet metal, comprising a worktable (1), characterized in that: A positioning mechanism (2) is provided on the front side of the top of the workbench (1). A lifting mechanism (3) is fixedly connected to the top of the workbench (1). Several laser prototyping heads (4) are installed at the bottom of the lifting mechanism (3). A PLC controller (5) is installed on the front side of the workbench (1). A support rod (6) is welded to the left side of the top of the workbench (1). A detection camera (7) is installed on the right side of the support rod (6). The positioning mechanism (2) includes a V-groove (21), a positioning post (22), six mounting slots (23), an electromagnet (24), a limiting slot (25), and a pressure sensor (26). The V-groove (21) is located on the front side of the top of the workbench (1). The positioning post (22) is welded to the inside of the V-groove (21). The mounting slots (23) are located inside the V-groove (21). The electromagnet (24) is installed inside the mounting slot (23). The limiting slot (25) is located inside the V-groove (21). The pressure sensor (26) is installed inside the limiting slot (25).

2. The auxiliary positioning device for laser prototyping of sheet metal according to claim 1, characterized in that: The lifting mechanism (3) includes a support shell (31), a lead screw (32), a threaded block (33), a servo motor (34), a limit rod (35), and a mounting plate (36). The support shell (31) is fixedly connected to the top of the workbench (1).

3. The auxiliary positioning device for laser prototyping of sheet metal according to claim 2, characterized in that: The lead screw (32) is rotatably connected to the inner side of the support shell (31). The top of the lead screw (32) is connected to a connecting shaft via a flat key. The threaded block (33) is threaded onto the surface of the lead screw (32). The servo motor (34) is mounted on the top of the support shell (31). The output end of the servo motor (34) at the bottom passes through the support shell (31) and is fixedly connected to the top of the connecting shaft.

4. The auxiliary positioning device for laser prototyping of sheet metal according to claim 2, characterized in that: The limiting rod (35) is welded to the front side of the threaded block (33), the mounting plate (36) is welded to the bottom of the front side of the limiting rod (35), and the laser prototyping head (4) is installed at the bottom of the mounting plate (36).

5. The auxiliary positioning device for laser prototyping of sheet metal according to claim 1, characterized in that: A fixing rod (8) is welded to the right side of the top of the workbench (1), and an LED light (9) is installed on the left side of the top of the fixing rod (8). The LED light (9) is pointing downwards at a 45-degree angle.

6. The auxiliary positioning device for laser prototyping of sheet metal according to claim 1, characterized in that: A placement tray (10) is provided on the left side of the front top of the workbench (1), and the inner side of the placement tray (10) is coated with anti-corrosion paint.

7. The auxiliary positioning device for laser prototyping of sheet metal according to claim 2, characterized in that: The front and rear sides of the limiting rod (35) are fixedly connected with reinforcing rings (11), and the surface of the reinforcing rings (11) is coated with anti-corrosion coating.

8. The auxiliary positioning device for laser prototyping of sheet metal according to claim 1, characterized in that: A support column (12) is fixedly connected to the chamfer at the bottom of the workbench (1), and the bottom of the support column (12) is engraved with anti-slip texture.

Images