Pressure adjusting clamping device

Abstract

The utility model provides a pressure regulation clamping device, which relates to the technical field of clamping pressure regulation of clamping devices, and comprises a clamping table for placing a workpiece, sliding blocks for clamping the workpiece are arranged on one pair of opposite side edges of the table top of the clamping table in a penetrating manner, and the other pair of opposite side edges of the table bottom of the clamping table are fixedly connected with connecting frames; a plurality of U-shaped plates distributed in a linear array are arranged at the positions, located on the connecting frames, of the clamping table top in a penetrating mode, and the rolling shafts and the idler wheels are arranged so that friction force between a workpiece and the clamping table top can be reduced conveniently in the process of pushing the workpiece to move, that is, it is guaranteed that the workpiece can move smoothly without the need for exerting large pushing force, and the clamping table top can be used for clamping the workpiece. Therefore, subsequent pressure adjustment is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping pressure adjustment of clamping devices, in particular to a pressure regulating clamping device. Background Art

[0002] A clamping device generally refers to a mechanism used to clamp workpieces, equipment, or objects, such as a common robotic arm, a clamping block installed on a mold fixture to clamp materials or molds, and when the clamping device is in use, it is sometimes necessary to adjust the clamping pressure according to changes in the shape or surface strength of the object.

[0003] For example, a clamping mechanism that automatically adjusts pressure has a publication number of CN221135599U. When in use, the moving mechanism is adjusted according to the size of the clamped object. At this time, the servo motor drives the threaded rod to rotate, and the threaded rod drives the slider to slide in the slide groove, thereby driving the push plate to slide to a suitable distance, ensuring smooth clamping while leaving room for precise adjustment, waiting for the object to be clamped. During clamping, when the photoelectric clamping sensor detects the object, the rear adjustment mechanism can be turned on to start clamping. When clamping starts, the pneumatic cabin starts, and the piston plate is used to push the clamping plate to clamp the object. Subsequently, the pressure of the object is sensed through the set pressure sensor, and the clamping pressure is adjusted through the air pressure caused by the incoming gas. The clamping pressure can be adjusted more accurately through the set pressure sensor, etc., to ensure the clamping effect of the device.

[0004] However, the pneumatic cabin is arranged on one side of the device body. Therefore, when the pneumatic cabin is inflated to push the piston plate to move, the piston plate needs to push the object to the side of the push plate until it contacts the push plate. When the object is heavier, the piston plate needs stronger air pressure to push the object to move. When the air pressure in the pneumatic cabin is high, when the object contacts the push plate, the piston plate will exert greater pressure on the object, resulting in the need to deflate the air to reduce the air pressure later, which is more troublesome. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a pressure regulating clamping device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pressure regulating clamping device, comprising a clamping table for placing a workpiece, one of the opposite side edges of the clamping table surface is penetrated by a sliding block for clamping the workpiece and the other opposite side edges of the table bottom are fixedly connected to a connecting frame, the clamping table surface is penetrated by a plurality of U-shaped plates distributed in a linear array at the position of each connecting frame, a plurality of U-shaped plates are respectively fixedly installed with anti-slip sheets, rotatably installed with rollers and embedded with a plurality of rollers rotatably connected, the rollers are perpendicular to the center lines of the rollers, spring rods are connected between the two sides of the outer bottom edge of the U-shaped plate and the connecting frame, and a connecting block is fixedly connected to the middle position of the outer bottom edge of the U-shaped plate, an electric push rod is penetrated and fixedly connected to one side of the connecting frame, and a push block for pushing the connecting block to rise is fixedly connected to the telescopic end of the electric push rod.

[0007] Preferably, both sides of the push block are plugged into the surface of the connecting frame, and the plugging part of the connecting frame and the push block is slidably connected to the side of the connecting block.

[0008] Preferably, the sliding block is plugged with a plurality of clamping blocks on one side facing the middle of the clamping table surface, a plurality of springs are connected between the clamping blocks and the sliding blocks, a frame is provided through the middle of one side of the clamping block mounting spring and a pressure sensor located in the frame is fixedly connected.

[0009] Preferably, a triangular protrusion is fixedly connected to a side of the frame facing away from the pressure sensor, an inserting strip is inserted into the sliding block, and one side of the inserting strip extends outward and is slidably connected to the hypotenuse of the triangular protrusion.

[0010] Preferably, an electric push rod is connected between one end of the inserting strip and the sliding block, and the inserting strip passes through a plurality of springs.

[0011] Preferably, an electric push rod is also fixedly mounted on the other opposite side of the clamping table surface.

[0012] Preferably, the bottom edge of the sliding block extends outward to the bottom of the clamping platform, and the bottom of the clamping platform also drives the sliding block to slide by installing an electric push rod.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a plurality of liftable U-shaped plates are provided, and anti-skid sheets, rollers and wheels are installed in different U-shaped plates, in cooperation with the electric push rod of the clamping table surface and the sliding block, when the electric push rod of the clamping table surface pushes the workpiece, the roller is used to contact the bottom edge of the workpiece to reduce the friction of the bottom edge of the workpiece, and when the clamping block in the sliding block pushes the workpiece, the roller is used to contact the bottom surface of the workpiece to reduce the friction of the bottom edge of the workpiece, and the provided rollers and wheels can also ensure that the workpiece can only move in the pushing direction under the pushing action, and the workpiece can be easily pushed to move by reducing the friction, without exerting a large thrust, so after the workpiece moves to the specified position, there is no need to adjust the pressure of the sliding block on the workpiece for a second time.

[0015] 2. In the utility model, by setting an insert strip, the insert strip is extended to slide on the hypotenuse of the triangular protrusion, so as to push the triangular protrusion together with the frame to move toward the position of the clamping block until it contacts the pressure sensor, and push the pressure sensor and the clamping block to overcome the tension of the spring and move toward the workpiece until the clamping block is against the side of the workpiece, and the pressure sensor is used to detect the clamping force acting on the workpiece in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a pressure regulating clamping device is proposed for the utility model;

[0017] Figure 2 A pressure regulating clamping device is proposed for the utility model Figure 1 A schematic cross-sectional structure diagram of;

[0018] Figure 3 A pressure regulating clamping device is proposed for the utility model Figure 1 Schematic diagram of the top-down structure;

[0019] Figure 4 It is a schematic diagram of the top-sectional structure of the sliding block of the utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the rear view structure.

[0021] Legend: 1. Clamping table; 2. Electric push rod; 3. Sliding block; 4. Triangular protrusion; 5. U-shaped plate; 6. Anti-slip sheet; 7. Roller; 8. Roller; 9. Connecting frame; 10. Spring rod; 11. Push block; 12. Connecting block; 13. Clamping block; 14. Spring; 15. Insert; 16. Frame; 17. Pressure sensor. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] like Figure 1-5As shown, a pressure regulating clamping device comprises a clamping table 1 for placing a workpiece, wherein a pair of opposite sides of the clamping table 1 are penetrated by a sliding block 3 for clamping the workpiece, and a connecting frame 9 is fixedly connected to the other opposite side positions of the bottom of the table. When an object or a workpiece is placed on the clamping table 1, the two sliding blocks 3 are brought close to each other to clamp the workpiece, and the bottom edge of the sliding block 3 extends outward to the bottom of the clamping table 1, and the bottom of the clamping table 1 also drives the sliding block 3 to slide by installing an electric push rod 2, and the sliding block 3 at the corresponding position is moved by the extension and retraction of the installed electric push rod 2. , an electric push rod 2 is also fixedly installed on the other opposite side of the clamping table 1. The electric push rod 2 there can be used to push the object or workpiece to slide left and right on the clamping table 1 to adjust the position. The clamping table 1 is located at each connecting frame 9 and is penetrated by a plurality of U-shaped plates 5 distributed in a linear array. The plurality of U-shaped plates 5 are respectively fixedly installed with anti-slip sheets 6, rotatably installed with rollers 7, and embedded with a plurality of rollers 8 connected rotatably. The rollers 8 are perpendicular to the center lines of the rollers 7. In actual use, the U-shaped plate 5 at a specific position is raised to the top of the clamping table 1 to achieve The anti-skid sheet 6, the roller 7 or the roller 8 are in contact with the bottom surface of the object or workpiece. When the anti-skid sheet 6 contacts the bottom surface of the object or workpiece, the position of the object or workpiece can be fixed. When the roller 7 contacts the bottom surface of the object or workpiece, the object or workpiece can be ensured to move in the left and right directions along the clamping table 1. When the roller 8 contacts the bottom surface of the object or workpiece, it is conducive to the object or workpiece moving in the front and back directions along the clamping table 1, that is, when adjusting the front, back, left and right positions of the object or workpiece, the resistance to pushing the object or workpiece will not be increased due to friction. The U-shaped plate 5 is connected between the two sides of the outer bottom edge and the connecting frame 9. A connecting block 12 is fixedly connected to the middle of the outer bottom edge of the spring rod 10 and the U-shaped plate 5, and an electric push rod 2 is fixedly connected to one side of the connecting frame 9. The telescopic end of the electric push rod 2 is fixedly connected to a push block 11 for pushing the connecting block 12 to rise. The push block 11 can be moved by telescoping the electric push rod 2 on the connecting frame 9. When the push block 11 moves to contact one of the connecting blocks 12, the top edge of the push block 11 contacts the oblique edge of the connecting block 12, and when it continues to move to the middle of the bottom edge of the connecting block 12, it will force the connecting block 12 to drive the corresponding U-shaped plate 5 to overcome the pulling force of the spring rod 10 and rise.

[0025] In addition, both sides of the push block 11 are plugged into the surface of the connecting frame 9 and the plugged portion of the connecting frame 9 and the push block 11 is slidably connected to the side of the connecting block 12, thereby ensuring the stability of the push block 11 during the sliding process.

[0026] In addition, the sliding block 3 is plugged with a plurality of clamping blocks 13 on one side of the middle of the table surface of the clamping table 1, and a plurality of springs 14 are connected between the clamping blocks 13 and the sliding block 3. A frame 16 is provided through the middle of one side of the clamping block 13 on which the spring 14 is installed, and a pressure sensor 17 located in the frame 16 is fixedly connected. A triangular protrusion 4 is fixedly connected to the side of the frame 16 facing away from the pressure sensor 17. An insertion strip 15 is plugged into the sliding block 3, and one side of the insertion strip 15 extends outward and is slidably connected to the hypotenuse of the triangular protrusion 4. An electric push rod 2 is connected between one end of the insertion strip 15 and the sliding block 3, and the insertion strip 15 passes through A plurality of springs 14 are used to adjust the approximate position of the sliding block 3 by extending and retracting the electric push rod 2 at the bottom of the clamping table 1, and then the electric push rod 2 in the sliding block 3 is contracted to realize the movement of the insert 15, and during the movement, its extension slides on the hypotenuse of the triangular protrusion 4, pushing the triangular protrusion 4 together with the frame 16 to move toward the position of the clamping block 13 until it contacts the pressure sensor 17, and pushes the pressure sensor 17 and the clamping block 13 to overcome the pulling force of the spring 14 and move toward the workpiece until the clamping block 13 is against the side of the workpiece, and the pressure sensor 17 is used to detect the clamping force acting on the workpiece in real time.

[0027] Working principle: the workpiece is placed on the surface of the clamping table 1, and the roller 7 is used to rise to contact the bottom edge of the workpiece. The electric push rods 2 on the left and right sides of the clamping table 1 are extended and retracted, and the left and right positions of the workpiece are adjusted by the rotation of the roller 7. Then the roller 8 rises to contact the bottom edge of the workpiece, and then the roller 7 descends, and the sliding block 3 is used to move closer to the workpiece. Then the clamping block 13 in the sliding block 3 is used to move and clamp the surface of the workpiece, and when the clamping block 13 on one of the sliding blocks 3 first contacts the side of the workpiece, the workpiece is pushed to be easily pushed under the rolling action of the roller 8 until the workpiece contacts the clamping block 13 on the other sliding block 3. At this time, the anti-slip sheet 6 rises to contact the bottom edge of the workpiece, and the roller 8 descends, and the insertion strip 15 in the sliding block 3 is used to move, and the clamping pressure of the clamping block 13 on the workpiece is adjusted under the auxiliary detection action of the pressure sensor 17.

[0028] The wiring diagram of the electric push rod 2 and the pressure sensor 17 in the present invention is common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the electric push rod 2 and the pressure sensor 17 are not explained in detail.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pressure regulating clamping device, comprising a clamping table (1) for placing a workpiece, characterized in that: A pair of opposite sides of the table top of the clamping table (1) are penetrated by sliding blocks (3) for clamping workpieces, and another pair of opposite sides of the bottom of the table are fixedly connected to connecting frames (9); The tabletop of the clamping table (1) is provided with a plurality of U-shaped plates (5) distributed in a linear array at the position of each connecting frame (9), and a plurality of U-shaped plates (5) are respectively fixedly installed with anti-slip sheets (6), rotatably installed with rollers (7), and embedded with a plurality of rollers (8) rotatably connected; The roller (8) is vertically distributed with respect to the center line of the roller shaft (7); spring rods (10) are connected between the two sides of the outer bottom edge of the U-shaped plate (5) and the connecting frame (9); a connecting block (12) is fixedly connected to the middle position of the outer bottom edge of the U-shaped plate (5); an electric push rod (2) is fixedly connected to one side of the connecting frame (9); and a push block (11) for pushing the connecting block (12) upward is fixedly connected to the telescopic end of the electric push rod (2).

2. The pressure regulating clamping device according to claim 1, characterized in that: The two sides of the push block (11) are plugged into the surface of the connecting frame (9), and the plugged-in part of the connecting frame (9) and the push block (11) is slidably connected to the side of the connecting block (12).

3. The pressure regulating clamping device according to claim 1, characterized in that: The sliding block (3) is plugged with a plurality of clamping blocks (13) on one side facing the middle of the table surface of the clamping table (1); a plurality of springs (14) are connected between the clamping blocks (13) and the sliding block (3); a frame (16) is provided through the middle of one side of the clamping block (13) on which the springs (14) are mounted and a pressure sensor (17) located in the frame (16) is fixedly connected.

4. The pressure regulating clamping device according to claim 3, characterized in that: A triangular convex block (4) is fixedly connected to the side of the frame (16) facing away from the pressure sensor (17), an inserting strip (15) is inserted into the sliding block (3), and one side of the inserting strip (15) extends outward and is slidably connected to the oblique side of the triangular convex block (4).

5. The pressure regulating clamping device according to claim 4, characterized in that: An electric push rod (2) is connected between one end of the inserting strip (15) and the sliding block (3), and the inserting strip (15) passes through a plurality of springs (14).

6. The pressure regulating clamping device according to claim 1, characterized in that: An electric push rod (2) is also fixedly mounted on the other opposite side of the table surface of the clamping table (1).

7. The pressure regulating clamping device according to claim 1, characterized in that: The bottom edge of the sliding block (3) extends outward to the bottom of the clamping platform (1), and the bottom of the clamping platform (1) also drives the sliding block (3) to slide by installing an electric push rod (2).

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