A laser-cut workpiece clamping fixture for easy positioning

Abstract

This utility model discloses a laser-cut workpiece clamping fixture for easy positioning, belonging to the field of laser cutting technology. Its key technical features include a base plate and a workpiece body. A clamping mechanism is provided on the top of the base plate, a cooling mechanism is provided on the left side of the base plate, and a triangular top block is movably provided on the top of the base plate. The clamping mechanism includes a clamping plate, two first pillars, two first rotating shafts, a clamping frame, two second pillars, and two second rotating shafts. The bottom of the first pillars is fixedly connected to the top of the clamping plate, and the side of the first rotating shaft closest to the clamping frame is fixedly connected to the clamping frame. The first rotating shaft is rotatably connected inside the first pillar. This invention solves the problem in existing patents where four adjustment shafts are required to clamp the workpiece, resulting in low efficiency, labor consumption, and reduced laser cutting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a laser cutting workpiece clamping fixture that is easy to position. Background Technology

[0002] In the field of laser cutting, precise workpiece positioning and stable clamping are the core prerequisites for ensuring cutting accuracy.

[0003] Currently, most laser cutting fixtures are difficult to adjust and cannot be adjusted according to the size of the object being cut. This limits the use of the laser cutting fixture and fails to meet people's needs, causing inconvenience when using it.

[0004] The existing patent (publication number: CN212823376U) discloses a laser cutting fixture for high-end equipment manufacturing. This laser cutting fixture achieves the goal of easy adjustment, solving the problem of general laser cutting fixtures being inconvenient to adjust. It allows users to adjust the fixture according to the size of the object being cut, expanding the limitations of the laser cutting fixture and thus meeting the needs of users, bringing convenience to users of this laser cutting fixture.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the number of adjustment shafts proposed in these patents is four. When clamping and fixing the workpiece, four cranks need to be rotated to clamp it, which is inefficient and requires a certain amount of labor, thus affecting the laser cutting efficiency of the workpiece.

[0006] To address this, a laser-cut workpiece clamping fixture that facilitates positioning is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a laser-cut workpiece clamping fixture that is easy to position, which solves the problem in existing patents that require four adjustment shafts to clamp the workpiece, resulting in low efficiency, high labor costs, and reduced laser cutting efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a laser-cut workpiece clamping fixture for easy positioning, comprising a base plate and a workpiece body, wherein a clamping mechanism is provided on the top of the base plate, a cooling mechanism is provided on the left side of the base plate, and a triangular top block is movably provided on the top of the base plate;

[0009] The clamping mechanism includes a clamping plate, two first pillars, two first rotating shafts, a clamping frame, two second pillars, and two second rotating shafts. The bottom of the first pillar is fixedly connected to the top of the clamping plate. The side of the first rotating shaft near the clamping frame is fixedly connected to the clamping frame. The first rotating shaft is rotatably connected inside the first pillar. The side of the second rotating shaft near the clamping frame is fixedly connected to the clamping frame. The second rotating shaft is rotatably connected inside the second pillar. The bottom of the second pillar is fixedly connected to the top of the base plate.

[0010] Preferably, the bottom of the clamping plate is fixedly connected with an anti-slip cone, and the number of anti-slip cones is several and evenly distributed on the bottom of the clamping plate, with the bottom of the anti-slip cones contacting the top of the workpiece body.

[0011] Preferably, tension springs are fixedly connected to both sides of the bottom front side of the clamping frame, and the bottom of the tension springs is fixedly connected to the top of the base plate.

[0012] Preferably, a rotating frame is fixedly connected to the front side of the clamping frame, and a roller is rotatably connected inside the rotating frame, with the surface of the roller contacting the inclined surface of the triangular apex block.

[0013] Preferably, an electric telescopic rod is fixedly connected to the top of the base plate, the rear side of the telescopic end of the electric telescopic rod is fixedly connected to the front side of the triangular top block, and a controller is fixedly connected to the front side of the top of the base plate.

[0014] Preferably, the cooling mechanism includes an air inlet pipe, an exhaust hood, and several heat dissipation slots. The heat dissipation slots are located on the top of the base plate. The right side of the exhaust hood is fixedly connected to the left side of the base plate. The heat dissipation slots are connected to the exhaust hood. The rear side of the air inlet pipe is fixedly connected to the front side of the exhaust hood.

[0015] Preferably, the base plate has four locking holes inside, which are evenly distributed at the four corners of the base plate.

[0016] Preferably, the base plate is made of cast iron.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a clamping mechanism, which uses a controller to extend the telescopic end of the electric telescopic rod, pushing the triangular top block to move backward. The inclined extrusion roller drives the clamping frame to rotate backward around the second rotating axis. At the same time, the first rotating axis assists in the rotation to keep the clamping plate moving downward in parallel. The bottom anti-slip cone is in close contact with the workpiece body, and the pointed cone structure increases the friction force to achieve stable clamping. Only the electric telescopic rod needs to be controlled to quickly complete the fixation, which greatly improves efficiency and saves manpower. It solves the problem proposed in the existing patent that the number of adjustment shafts is four. When clamping and fixing the cut object, four cranks need to be turned to clamp the cut object, which is inefficient and consumes a certain amount of labor, affecting the laser cutting efficiency of the cut object.

[0019] 2. This application incorporates a cooling mechanism that connects an external fan to the air intake pipe. The airflow passes through the exhaust hood and exits from the heat dissipation groove on the top of the base plate, forming a channel to actively remove the heat generated during laser cutting of the workpiece. This effectively prevents thermal deformation of the workpiece due to heat accumulation, ensuring the accuracy of the cutting dimensions. At the same time, the cast iron base plate is heat-resistant, has good thermal conductivity, and can resist the influence of the laser. Combined with the four corner locking holes, the fixture is fixed by bolts, enhancing the overall stability. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the laser-cut workpiece clamping fixture for easy positioning according to this utility model.

[0021] Figure 2 This is a three-dimensional exploded view of the first rotating shaft and the first support column in this utility model;

[0022] Figure 3 This is a three-dimensional exploded view of the exhaust hood and the base plate in this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the bottom of the clamping plate in this utility model;

[0024] Figure 5 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0025] In the diagram, 1. Base plate; 2. Electric telescopic rod; 3. Controller; 4. Cooling mechanism; 401. Air inlet pipe; 402. Exhaust hood; 403. Heat dissipation groove; 5. Clamping mechanism; 501. Clamping plate; 502. First support column; 503. First rotating shaft; 504. Clamping frame; 505. Second support column; 506. Second rotating shaft; 6. Triangular top block; 7. Locking hole; 8. Rotating frame; 9. Roller; 10. Anti-slip cone; 11. Tension spring; 12. Workpiece body. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A laser-cut workpiece clamping fixture for easy positioning includes a base plate 1 and a workpiece body 12. A clamping mechanism 5 is provided on the top of the base plate 1, a cooling mechanism 4 is provided on the left side of the base plate 1, and a triangular top block 6 is movably provided on the top of the base plate 1.

[0029] The clamping mechanism 5 includes a clamping plate 501, two first pillars 502, two first rotating shafts 503, a clamping frame 504, two second pillars 505, and two second rotating shafts 506. The bottom of the first pillar 502 is fixedly connected to the top of the clamping plate 501. The side of the first rotating shaft 503 near the clamping frame 504 is fixedly connected to the clamping frame 504. The first rotating shaft 503 is rotatably connected inside the first pillar 502. The side of the second rotating shaft 506 near the clamping frame 504 is fixedly connected to the clamping frame 504. The second rotating shaft 506 is rotatably connected inside the second pillar 505. The bottom of the second pillar 505 is fixedly connected to the top of the base plate 1.

[0030] In this embodiment: by placing the workpiece body 12 on the base plate 1 below the clamping plate 501, the controller 3 activates the extension end of the electric telescopic rod 2, which pushes the triangular top block 6 backward. The inclined surface of the triangular top block 6 presses against the roller 9, causing the clamping frame 504 to rotate backward around the second rotating shaft 506, which drives the clamping plate 501 to move downward. The bottom of the anti-slip cone 10 contacts the workpiece body 12 to increase friction and achieve fixation. Only by controlling the extension end of the electric telescopic rod 2, the workpiece body 12 can be quickly and stably clamped. This solves the problem proposed in the existing patent that the number of adjustment shafts is four, and when clamping and fixing the cut object, four cranks need to be turned to clamp the cut object, which is inefficient and consumes a certain amount of labor, affecting the laser cutting efficiency of the cut object. After the external fan is connected to the air inlet pipe 401, the airflow flows out from the heat dissipation groove 403 through the exhaust hood 402, which takes away the heat generated by the laser cutting of the workpiece body 12, avoids thermal deformation of the workpiece body 12, and ensures the cutting dimension accuracy.

[0031] Specifically, such as Figure 1 and Figure 4As shown, anti-slip cones 10 are fixedly connected to the bottom of the clamping plate 501. There are several anti-slip cones 10 and they are evenly distributed on the bottom of the clamping plate 501. The bottom of the anti-slip cones 10 is in contact with the top of the workpiece body 12.

[0032] Specifically, such as Figure 1 and Figure 5 As shown, tension springs 11 are fixedly connected to both sides of the bottom front side of the clamping frame 504, and the bottom of the tension springs 11 is fixedly connected to the top of the base plate 1.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, a rotating frame 8 is fixedly connected to the front side of the clamping frame 504, and a roller 9 is rotatably connected inside the rotating frame 8. The surface of the roller 9 contacts the inclined surface of the triangular top block 6.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, an electric telescopic rod 2 is fixedly connected to the top of the base plate 1. The rear side of the telescopic end of the electric telescopic rod 2 is fixedly connected to the front side of the triangular top block 6. A controller 3 is fixedly connected to the front side of the top of the base plate 1.

[0035] In this embodiment: the anti-slip cones 10 evenly distributed at the bottom of the clamping plate 501 increase the friction with the workpiece body 12 through the pointed cone structure, preventing the workpiece body 12 from shifting during cutting. The tension spring 11 at the bottom of the clamping frame 504 provides a reset pull force, which facilitates the loading and unloading of the workpiece body 12. The rotating frame 8 and the roller 9 cooperate with the inclined surface of the triangular top block 6 to convert the linear motion of the extension end of the electric telescopic rod 2 into the rotation of the clamping frame 504, realizing the automatic pressing down of the clamping plate 501. It can also be reset and lifted by the pull force of the tension spring 11. Only the controller 3 needs to control the electric telescopic rod 2 to quickly complete the clamping of the workpiece body 12. The operation is convenient, improving the clamping efficiency and subsequent laser cutting efficiency, and saving manpower.

[0036] Specifically, such as Figure 1 and Figure 3 As shown, the cooling mechanism 4 includes an air inlet pipe 401, an exhaust hood 402, and several heat dissipation slots 403. The heat dissipation slots 403 are opened on the top of the base plate 1. The right side of the exhaust hood 402 is fixedly connected to the left side of the base plate 1. The heat dissipation slots 403 are connected to the exhaust hood 402. The rear side of the air inlet pipe 401 is fixedly connected to the front side of the exhaust hood 402.

[0037] Specifically, such as Figure 1 As shown, the base plate 1 has four locking holes 7 inside, which are evenly distributed at the four corners of the base plate 1.

[0038] Specifically, such as Figure 1 As shown, the base plate 1 is made of cast iron.

[0039] In this embodiment: the cooling mechanism 4 forms an airflow channel through the air inlet pipe 401, the exhaust hood 402 and the heat dissipation groove 403, which actively removes the heat generated during the laser cutting of the workpiece body 12 to avoid thermal deformation. The locking holes 7 at the four corners of the base plate 1 can fix the fixture and enhance stability. The base plate 1 is made of cast iron, which has good high temperature resistance and thermal conductivity, and can effectively withstand the heat of laser cutting and dissipate heat quickly, ensuring the durability of the fixture and the cutting accuracy of the workpiece body 12.

[0040] Working principle: By placing the workpiece body 12 under the clamping plate 501 on top of the base plate 1, the controller 3 activates the electric telescopic rod 2, extending its telescopic end to push the triangular top block 6 backward. The inclined surface of the triangular top block 6 presses against the roller 9, causing the clamping frame 504 to rotate backward around the second rotating shaft 506. Simultaneously, the first rotating shaft 503 rotates within the first support column 502, keeping the clamping plate 501 parallel to the base plate 1. The clamping frame 504 drives the clamping plate 501 downward until the anti-slip cone 10 at the bottom of the clamping plate 501 is in close contact with the top of the workpiece body 12. The pointed cone structure of the anti-slip cone 10 increases friction, achieving stable clamping of the workpiece body 12. This process only requires controlling the extension and retraction of the electric telescopic rod 2 to quickly complete the fixation, solving the problem of the existing patent requiring four adjusting shafts when clamping and fixing the cut object. The current method of using four cranks to hold the workpiece is inefficient and requires a certain amount of labor, which affects the laser cutting efficiency. By connecting an external fan to the air inlet pipe 401, the airflow enters the exhaust hood 402 through the air inlet pipe 401 after the external fan is started, and then flows out from the heat dissipation groove 403 on the top of the base plate 1, forming an airflow channel. This actively removes the heat generated by the workpiece body 12 during laser cutting. This cooling design can prevent the workpiece from thermal deformation due to heat accumulation and ensure the cutting dimensional accuracy. The cast iron base plate 1 avoids the laser from affecting the base plate 1. The tension spring 11 on the front side of the bottom of the clamping frame 504 provides a reset pull when the electric telescopic rod 2 retracts, so that the clamping frame 504 drives the clamping plate 501 to move upward, which facilitates the loading and unloading of the workpiece body 12. The locking holes 7 at the four corners of the base plate 1 can be used to fix the fixture with external bolts to enhance stability.

[0041] 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. A laser-cut workpiece clamping fixture for easy positioning, comprising a base plate (1) and a workpiece body (12), characterized in that: The bottom plate (1) is provided with a clamping mechanism (5) at the top, a cooling mechanism (4) is provided on the left side of the bottom plate (1), and a triangular top block (6) is movably provided on the top of the bottom plate (1). The clamping mechanism (5) includes a clamping plate (501), two first pillars (502), two first rotating shafts (503), a clamping frame (504), two second pillars (505), and two second rotating shafts (506). The bottom of the first pillar (502) is fixedly connected to the top of the clamping plate (501). The side of the first rotating shaft (503) near the clamping frame (504) is fixedly connected to the clamping frame (504). The first rotating shaft (503) is rotatably connected inside the first pillar (502). The side of the second rotating shaft (506) near the clamping frame (504) is fixedly connected to the clamping frame (504). The second rotating shaft (506) is rotatably connected inside the second pillar (505). The bottom of the second pillar (505) is fixedly connected to the top of the base plate (1).

2. The laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: The bottom of the clamping plate (501) is fixedly connected with anti-slip cones (10). There are several anti-slip cones (10) and they are evenly distributed on the bottom of the clamping plate (501). The bottom of the anti-slip cones (10) is in contact with the top of the workpiece body (12).

3. The laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: Both sides of the bottom front side of the clamping frame (504) are fixedly connected with tension springs (11), and the bottom of the tension springs (11) is fixedly connected to the top of the base plate (1).

4. A laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: The front side of the clamping frame (504) is fixedly connected to a rotating frame (8), and a roller (9) is rotatably connected inside the rotating frame (8). The surface of the roller (9) is in contact with the inclined surface of the triangular top block (6).

5. A laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: An electric telescopic rod (2) is fixedly connected to the top of the base plate (1). The rear side of the telescopic end of the electric telescopic rod (2) is fixedly connected to the front side of the triangular top block (6). A controller (3) is fixedly connected to the front side of the top of the base plate (1).

6. A laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: The cooling mechanism (4) includes an air inlet pipe (401), an exhaust hood (402), and several heat dissipation slots (403). The heat dissipation slots (403) are located on the top of the base plate (1). The right side of the exhaust hood (402) is fixedly connected to the left side of the base plate (1). The heat dissipation slots (403) are connected to the exhaust hood (402). The rear side of the air inlet pipe (401) is fixedly connected to the front side of the exhaust hood (402).

7. A laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: The base plate (1) has four locking holes (7) inside, which are evenly distributed at the four corners of the base plate (1).

8. A laser-cut workpiece clamping fixture for easy positioning according to claim 1, characterized in that: The base plate (1) is made of cast iron.

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