PMI foam anti-deformation clamping device

Abstract

The utility model discloses a PMI (polymethacrylimide) foam anti-deformation clamping device, which relates to the technical field of foam clamping and comprises a workbench, a plurality of supporting legs are arranged at the bottom of the workbench, a plurality of through grooves are transversely formed in the top of the workbench, a plurality of supporting columns are fixedly connected to the top of the workbench, and a top seat is fixedly connected to the tops of the supporting columns. An air cylinder is fixedly installed at the top seat in a penetrating mode, the telescopic end of the air cylinder is fixedly connected with a lifting seat, and two sliding grooves are transversely formed in the bottom of the lifting seat. And the anti-deformation clamping mechanism comprises a double-end lead screw, a band-type brake motor, a sliding seat, a mounting plate, a spring and a clamping plate, the double-end lead screw is rotationally mounted at the bottom of the lifting seat through two bearing seats, and the band-type brake motor is fixedly mounted at the bottom of the lifting seat. According to the utility model, the cystosepiment can be effectively prevented from being crushed due to overlarge clamping force between the clamping plates and the cystosepiment, so that unnecessary loss is effectively avoided, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of foam clamping technology, and in particular to a PMI foam anti-deformation clamping device. Background Technology

[0002] PMI foam is a high-performance, novel polymeric foam material, officially known as polymethacrylamide foam. Due to its superior performance, PMI foam has become an important material in many high-end fields. For example, PIM foam boards, with their excellent properties, are now essential materials in aerospace, transportation, and construction. During the production and processing of PMI foam, clamping and fixing are often required, such as when carving or spraying the foam, to prevent movement and shaking that could affect the processing results. This necessitates the use of clamping devices, as shown below.

[0003] A search revealed a patent with authorization announcement number CN215847791U, which discloses a vibration-resistant clamping device for processing foam boards. The device includes a first U-shaped frame and a second U-shaped frame arranged in parallel. An adjusting cylinder is installed in the middle of one side of the first U-shaped frame, and the piston rod of the adjusting cylinder is connected to the outer wall of the second U-shaped frame. A clamping mechanism is installed at the bottom of each support of the first and second U-shaped frames. The clamping mechanism includes a vertical plate, with parallel fixed plates and adjusting clamps installed at the top and bottom of the vertical plate. The connecting cross-section of the vertical plate, fixed plates, and adjusting clamps forms a U-shape. This invention controls the distance between the first and second U-shaped frames using an adjusting cylinder, allowing adjustment according to the width of different foam boards, facilitating widespread adoption. The clamping mechanism at the bottom of the first and second U-shaped frames provides multi-point clamping, improving structural stability, preventing vibration of the foam board during processing, and improving processing efficiency and quality.

[0004] However, the above-mentioned clamping device still has the following areas for improvement. For example, when clamping foam board, since no anti-deformation component is provided, it is very easy for the foam board to deform due to excessive clamping force, resulting in clamping indentations, which damages the foam board and causes unnecessary losses. Therefore, a PMI foam anti-deformation clamping device is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model discloses a PMI foam anti-deformation clamping device. By incorporating an anti-deformation clamping mechanism, the foam board can be placed on the worktable during operation. Then, the cylinder is activated to extend, causing the lifting seat to move downwards, thereby lowering two sets of clamping plates until the bottom of the clamping plates are deeply embedded in the grooves. At this point, the brake motor is activated, driving the double-ended lead screw to rotate. The rotation of the double-ended lead screw, in conjunction with two sliders and two sliding grooves, causes two mounting plates to move relative to each other, thereby moving the two sets of clamping plates relative to each other until both sets of clamping plates are in contact with the foam board. The foam board is clamped and fixed by the side abutment and the spring is compressed to a certain extent. Then, the cylinder works to retract it, which, together with the two sets of clamping plates, lifts the foam board into the air for clamping and fixing. This makes it convenient for carving or spraying the foam board. Because it is equipped with springs and telescopic guide rods, it can effectively prevent the foam board from being crushed due to excessive clamping force, thus effectively avoiding unnecessary losses. In addition, the L-shaped turning surface at the bottom of the clamping plate can effectively prevent the foam board from slipping and falling. In summary, the problems in the background technology are solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a PMI foam anti-deformation clamping device, including a workbench, the bottom of which is provided with multiple support legs, the top of which has multiple through grooves horizontally, the top of which is fixedly connected with multiple support columns, the top of which is fixedly connected with a top seat, a cylinder is fixedly installed through the top seat, the telescopic end of which is fixedly connected with a lifting seat, and the bottom of the lifting seat has two sliding grooves horizontally.

[0008] The anti-deformation clamping mechanism includes a double-ended lead screw, a brake motor, a slide block, a mounting plate, a spring, and a clamping plate. The double-ended lead screw is rotatably mounted on the bottom of the lifting base via two bearing seats. The brake motor is fixedly mounted on the bottom of the lifting base, and its output end is connected to the shaft end of the double-ended lead screw. The double-ended lead screw has two symmetrically arranged threaded portions with opposite thread directions. Each of the two threaded portions of the double-ended lead screw is screwed with a slider. Two slide blocks and two mounting plates are provided. Each slide block is connected to multiple sliding connectors. The slide is mounted on two grooves. The tops of the two slide blocks are fixedly connected to the bottoms of the two sliders respectively. The mounting plate is fixedly mounted on the bottom of the slide block. There are multiple springs and clamps. The multiple springs and multiple clamps are divided into two groups. The two ends of the springs are fixedly connected to the mounting plate and the clamps respectively. There are multiple sets of telescopic guide rods on one side of the mounting plate. The telescopic ends of the telescopic guide rods are fixedly connected to the clamps. The clamps are L-shaped, and the L-shaped turning ends of the two sets of clamps are close to each other. The positions of the two sets of clamps match the positions of the multiple grooves.

[0009] An anti-deformation and anti-slip mechanism is located on the inner side of the L-shaped turning surface of the two sets of clamping plates.

[0010] Furthermore, multiple lifting guide rods are movably installed through the top seat, and the bottom end of the lifting guide rods is fixedly connected to the top of the lifting seat.

[0011] Furthermore, the size of the clamping plate is smaller than the size of the groove, and the bottom surface of the clamping plate is a smooth surface.

[0012] Furthermore, the spacing between any two adjacent clamps in the same group is the same.

[0013] Furthermore, the anti-deformation and anti-slip mechanism includes anti-slip protrusions, which are semi-circular in shape. Multiple anti-slip protrusions are provided, and the multiple anti-slip protrusions are equally divided into two groups. The two groups of anti-slip protrusions are respectively attached and fixed to the inner side of the L-shaped turning surface of the two sets of clamps. The anti-slip protrusions have hollow cavities inside, and air holes communicating with the hollow cavities are opened on both the front and rear sides of the anti-slip protrusions.

[0014] Furthermore, the multiple anti-slip protrusions are evenly distributed at equal intervals on the inner side of the L-shaped turning surface of the clamp, and the anti-slip protrusions are made of natural rubber material.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution incorporates an anti-deformation clamping mechanism. During operation, the foam board can be placed on the worktable, and then the cylinder can be activated to extend it, causing the lifting seat to move downwards. This, in turn, moves the two sets of clamping plates downwards until the bottom of the clamping plates is deeply embedded in the groove. At this point, the brake motor can be activated to rotate the double-ended lead screw. The rotation of the double-ended lead screw, in conjunction with two sliders and two sliding grooves, causes the two mounting plates to move relative to each other, thereby moving the two sets of clamping plates relative to each other until both sets of clamping plates are in close contact with both sides of the foam board, and the springs are compressed to a certain extent, thus clamping and fixing the foam board. Then, the cylinder is activated to retract it, which, in conjunction with the two sets of clamping plates, lifts the foam board into the air for clamping and fixing. This facilitates carving or spraying the foam board. Because of the springs and telescopic guide rods, it can effectively prevent the foam board from being crushed due to excessive clamping force, thus effectively avoiding unnecessary losses. Furthermore, the L-shaped turning surface at the bottom of the clamping plates can effectively prevent the foam board from slipping and falling. Overall, this greatly improves the practicality of the clamping device.

[0017] 2. This technical solution incorporates an anti-deformation and anti-slip mechanism, which effectively increases the friction between the clamping plate and the foam board during operation through multiple anti-slip protrusions. This enhances the clamping and fixing effect and stability of the foam board. Furthermore, the anti-slip protrusions can be compressed and deformed through air holes, further preventing damage to the foam board due to excessive clamping force. After the work is completed, the anti-slip protrusions will automatically return to their original shape, thereby further improving the practicality of the clamping device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the clamping plate installation structure of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the anti-slip protrusion installation of this utility model.

[0023] In the diagram: 1. Workbench; 2. Groove; 3. Support column; 4. Top seat; 5. Cylinder; 6. Lifting seat; 7. Slide groove; 8. Anti-deformation clamping mechanism; 801. Double-ended lead screw; 802. Brake motor; 803. Slide seat; 804. Mounting plate; 805. Spring; 806. Clamping plate; 807. Slider; 808. Telescopic guide rod; 9. Anti-deformation and anti-slip mechanism; 901. Anti-slip protrusion; 902. Hollow cavity; 903. Air hole; 10. Lifting guide rod. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0027] Reference Figures 1-3 A PMI foam anti-deformation clamping device includes a workbench 1, the bottom of the workbench 1 is provided with multiple support legs, the top of the workbench 1 is horizontally provided with multiple through grooves 2, the top of the workbench 1 is fixedly connected with multiple support columns 3, the top of the multiple support columns 3 is fixedly connected with a top seat 4, a cylinder 5 is fixedly installed through the top seat 4, the telescopic end of the cylinder 5 is fixedly connected with a lifting seat 6, and the bottom of the lifting seat 6 is horizontally provided with two sliding grooves 7.

[0028] The anti-deformation clamping mechanism 8 includes a double-ended lead screw 801, a brake motor 802, a slide block 803, a mounting plate 804, a spring 805, and a clamping plate 806. The double-ended lead screw 801 is rotatably mounted on the bottom of the lifting seat 6 via two bearing seats. The brake motor 802 is fixedly mounted on the bottom of the lifting seat 6, and the output end of the brake motor 802 is connected to the shaft end of the double-ended lead screw 801. The double-ended lead screw 801 has two symmetrically arranged threaded portions with opposite thread directions. A slider 807 is screwed to each of the two threaded portions of the double-ended lead screw 801. There are two slide blocks 803 and two mounting plates 804. The two slide blocks 803 are slidably mounted on two sliding grooves 7 via multiple sliding connectors. The top of each is fixedly connected to the bottom of two sliders 807. The mounting plate 804 is fixedly installed on the bottom of the slide block 803. There are multiple springs 805 and clamping plates 806. The multiple springs 805 and multiple clamping plates 806 are equally divided into two groups. The two ends of the springs 805 are fixedly connected to the mounting plate 804 and clamping plates 806 respectively. There are multiple sets of telescopic guide rods 808 on one side of the mounting plate 804. The telescopic ends of the telescopic guide rods 808 are fixedly connected to the clamping plates 806. The clamping plates 806 are L-shaped, and the L-shaped turning ends of the two sets of clamping plates 806 are close to each other. The positions of the two sets of clamping plates 806 match the positions of the multiple grooves 2. The anti-deformation and anti-slip mechanism 9 is located on the inner side of the L-shaped turning surface of the two sets of clamping plates 806.

[0029] Multiple lifting guide rods 10 are installed in a through-type manner at four points on the top seat. The bottom end of the lifting guide rod 10 is fixedly connected to the top of the lifting seat 6. The size of the clamping plate 806 is smaller than the size of the groove 2, and the bottom surface of the clamping plate 806 is a smooth surface. The spacing between two adjacent clamping plates 806 in the same group is the same.

[0030] In the specific implementation process, during operation, the foam board can be placed on the workbench 1, and then the cylinder 5 can be activated to extend it, causing the lifting seat 6 to move downward, thereby causing the two sets of clamping plates 806 to move downward until the bottom of the clamping plates 806 is deeply inserted into the groove 2. At this time, the brake motor 802 can be activated to drive the double-ended lead screw 801 to rotate. The rotation of the double-ended lead screw 801 can cooperate with the two sliders 807 and the two sliding grooves 7 to drive the two mounting plates 804 to move relative to each other, thereby driving the two sets of clamping plates 806 to move relative to each other until both sets of clamping plates 806 are in contact with the foam board. The foam board is clamped and fixed by the side abutment and the spring 805 is compressed to a certain extent. Then, the cylinder 5 works to retract it, which can cooperate with the two sets of clamping plates 806 to lift the foam board into the air for clamping and fixing. This makes it convenient to engrave or spray paint the foam board. Because of the spring 805 and the telescopic guide rod 808, the clamping plate 806 can effectively prevent the foam board from being crushed due to excessive clamping force, thus effectively avoiding unnecessary losses. In addition, the L-shaped turning surface at the bottom of the clamping plate 806 can effectively prevent the foam board from slipping and falling.

[0031] Among them, multiple lifting guide rods 10 are installed in a through-type movement at 4 locations on the top seat. The bottom end of the lifting guide rod 10 is fixedly connected to the top of the lifting seat 6 in order to improve the overall stability of the lifting seat 6.

[0032] The size of the clamping plate 806 is smaller than the size of the groove 2 so that the bottom of the clamping plate 806 can be inserted into the groove 2, and the bottom surface of the clamping plate 806 is a smooth surface to reduce the friction between the clamping plate 806 and the groove 2.

[0033] The equal spacing between two adjacent clamping plates 806 in the same group is designed to provide a more uniform clamping force to the foam board, thereby improving the clamping and fixing effect of the foam board. Specific Implementation Example 2:

[0035] Reference Figure 2 and Figure 4 In a preferred embodiment, the anti-deformation and anti-slip mechanism 9 includes an anti-slip protrusion 901, which is semi-circular. Multiple anti-slip protrusions 901 are provided, and the multiple anti-slip protrusions 901 are equally divided into two groups. The two groups of anti-slip protrusions 901 are respectively attached and fixed to the inner side of the L-shaped turning surface of the two sets of clamps 806. The interior of the anti-slip protrusion 901 is provided with a hollow cavity 902, and air holes 903 communicating with the hollow cavity 902 are opened on both the front and rear sides of the anti-slip protrusion 901.

[0036] Multiple anti-slip protrusions 901 are evenly distributed at equal intervals on the inner side of the L-shaped turning surface of the clamping plate 806, and the anti-slip protrusions 901 are made of natural rubber material.

[0037] In the specific implementation process, during operation, multiple anti-slip protrusions 901 can effectively increase the friction between the clamping plate 806 and the foam board, thereby improving the clamping and fixing effect and stability of the foam board. Furthermore, the anti-slip protrusions 901 can be compressed and deformed through the air holes 903, further preventing the foam board from being damaged due to excessive clamping force. After the work is completed, the anti-slip protrusions 901 will also automatically return to their original state.

[0038] The multiple anti-slip protrusions 901 are evenly distributed at equal intervals on the inner side of the L-shaped turning surface of the plywood 806 to provide a more uniform anti-slip effect on the foam board. The anti-slip protrusions 901 are made of natural rubber because natural rubber is known for its excellent elasticity and mechanical strength. It can deform significantly under external force and quickly return to its original shape, exhibiting good resilience and wear resistance, which facilitates the automatic reset of the anti-slip protrusions 901. In addition, natural rubber has a high surface friction, especially exhibiting good anti-slip performance in dry environments.

[0039] Working principle: During operation, the foam board can be placed on the workbench 1. Then, the cylinder 5 can be activated to extend it, causing the lifting seat 6 to move downwards. This, in turn, causes the two sets of clamping plates 806 to move downwards until the bottom of the clamping plates 806 are deeply embedded in the groove 2. At this point, the brake motor 802 can be activated to rotate the double-ended lead screw 801. The rotation of the double-ended lead screw 801 can cooperate with the two sliders 807 and the two sliding grooves 7 to move the two mounting plates 804 relative to each other, thereby causing the two sets of clamping plates 806 to move relative to each other until both sets of clamping plates 806 are in contact with both sides of the foam board. When the foam board is clamped tightly and the spring 805 is compressed to a certain extent, it can be clamped and fixed. Then, the cylinder 5 works to retract it, which can work with the two sets of clamping plates 806 to lift the foam board into the air for clamping and fixing. This makes it convenient to engrave or spray paint the foam board. Because of the spring 805 and the telescopic guide rod 808, the clamping plate 806 can effectively prevent the foam board from being crushed due to excessive clamping force, thus effectively avoiding unnecessary losses. In addition, the L-shaped turning surface at the bottom of the clamping plate 806 can effectively prevent the foam board from slipping and falling.

[0040] Furthermore, during operation, multiple anti-slip protrusions 901 can effectively increase the friction between the clamping plate 806 and the foam board, thereby improving the clamping and fixing effect and stability of the foam board. The anti-slip protrusions 901 can be compressed and deformed through the air holes 903, further preventing the foam board from being damaged due to excessive clamping force. After the work is completed, the anti-slip protrusions 901 will also automatically return to their original shape.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PMI foam anti-deformation clamping device comprising a workbench (1), characterized in that: The bottom of the workbench (1) is provided with multiple support legs, and the top of the workbench (1) is provided with multiple through grooves (2) in the horizontal direction. Multiple support columns (3) are fixedly connected to the top of the workbench (1), and a top seat (4) is fixedly connected to the top of the multiple support columns (3). A cylinder (5) is fixedly installed in the top seat (4) in a through manner. A lifting seat (6) is fixedly connected to the telescopic end of the cylinder (5). Two sliding grooves (7) are provided in the bottom of the lifting seat (6). An anti-deformation clamping mechanism (8) is provided, comprising a double-ended lead screw (801), a brake motor (802), a slide (803), a mounting plate (804), a spring (805), and a clamping plate (806). The double-ended lead screw (801) is rotatably mounted on the bottom of the lifting seat (6) via two bearing seats. The brake motor (802) is fixedly mounted on the bottom of the lifting seat (6), and the output end of the brake motor (802) is connected to the shaft end of the double-ended lead screw (801). The double-ended lead screw (801) is symmetrically provided with two threaded portions with opposite thread directions. A slider (807) is screwed into each of the two threaded portions of the double-ended lead screw (801). The slide (803) and the mounting plate (804) are each provided with two slides. The two slides (803) are slidably mounted through multiple sliding connectors. Installed in two sliding grooves (7), the tops of the two sliding blocks (803) are fixedly connected to the bottoms of the two sliders (807) respectively. The mounting plate (804) is fixedly installed on the bottom of the sliding block (803). There are multiple springs (805) and clamps (806). The multiple springs (805) and multiple clamps (806) are divided into two groups. The two ends of the springs (805) are fixedly connected to the mounting plate (804) and clamps (806) respectively. There are multiple sets of telescopic guide rods (808) on one side of the mounting plate (804). The telescopic ends of the telescopic guide rods (808) are fixedly connected to the clamps (806). The clamps (806) are L-shaped, and the L-shaped turning ends of the two sets of clamps (806) are close to each other. The positions of the two sets of clamps (806) match the positions of the multiple grooves (2). Anti-deformation and anti-slip mechanism (9) is located on the inner side of the L-shaped turning surface of the two sets of clamps (806).

2. A PMI foam anti-deformation clamping device according to claim 1, characterized in that: Multiple lifting guide rods (10) are movably installed through the top seat (4), and the bottom end of the lifting guide rods (10) is fixedly connected to the top of the lifting seat (6).

3. A PMI foam anti-deformation clamping device according to claim 1, characterized in that: The size of the clamp (806) is smaller than the size of the groove (2), and the bottom surface of the clamp (806) is a smooth surface.

4. The PMI foam anti-deformation clamping device according to claim 1, characterized in that: The spacing between two adjacent clamps (806) in the same group is the same.

5. The PMI foam anti-deformation clamping device according to claim 1, characterized in that: The anti-deformation and anti-slip mechanism (9) includes an anti-slip protrusion (901), which is semi-circular. There are multiple anti-slip protrusions (901), which are divided into two groups. The two groups of anti-slip protrusions (901) are respectively attached and fixed to the inner side of the L-shaped turning surface of the two sets of clamps (806). The interior of the anti-slip protrusion (901) is provided with a hollow cavity (902). Air holes (903) communicating with the hollow cavity (902) are opened on both the front and rear sides of the anti-slip protrusion (901).

6. A PMI foam anti-deformation clamping device according to claim 5, characterized in that: The multiple anti-slip protrusions (901) are evenly distributed at equal intervals on the inner side of the L-shaped turning surface of the clamp (806), and the anti-slip protrusions (901) are made of natural rubber material.

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