Automatic clamping mechanism

Abstract

The automatic clamping mechanism comprises a carrier plate, a plurality of positioning columns, a plurality of clamping assemblies, a sensor and an air bag, a series of mounting screw holes are formed in the carrier plate, a hoisting mechanism or a mechanical arm is connected to the upper portion of the carrier plate, a through positioning window is formed in the middle of the carrier plate, the sensor is mounted on the positioning window, and the clamping assemblies and the positioning columns are arranged on the carrier plate. The clamping assembly and the positioning column are installed on the carrier plate through the installation screw holes, the positioning column is used for guiding and accurately positioning materials, the air bag is an annular air bag and installed on the carrier plate in an attached mode, and the air bag and the clamping assembly are located on the same side of the carrier plate. According to the clamping mechanism, the annular air bag is introduced, after clamping is completed, the air bag is ventilated through the air source, the air bag is expanded to abut against the upper side of the material, a lower-supporting and upper-pressing structure is formed, the stability of the material in the clamping state is remarkably enhanced, extra supporting force is provided through application of the annular air bag, and the clamping effect is improved. And the materials are kept stable in the whole processing or carrying process.

Description

Technical Field

[0001] The utility model relates to the technical field of material and workpiece clamping and transportation, in particular to an automatic clamping mechanism. Background Art

[0002] Mature industrial manufacturing relies on batch production, and clamping mechanisms are essential tools in this process. They enable automatic material clamping and positioning, thereby improving production efficiency, reducing labor costs, and minimizing human error. With the transformation and upgrading of the manufacturing industry and the advancement of intelligent manufacturing, the application of automatic clamping mechanisms is becoming increasingly widespread, encompassing a wide range of fields, including automotive manufacturing, electronics production, and food processing.

[0003] In the technological development of clamping mechanisms, people are constantly pursuing higher precision, faster speed, and greater adaptability. To meet these demands, researchers are constantly exploring new clamping principles, clamping methods, and clamping mechanism structures. At the same time, with the rapid development of technologies such as sensors, control technologies, and machine vision, clamping mechanisms are gradually becoming intelligent and automated.

[0004] In mass production, to improve the stability of the clamping mechanism, the clamping mechanism is typically designed and manufactured specifically for the material being produced. However, due to the inherent tolerances in industrial manufacturing, relying solely on the bottom support to clamp the material can create a gap between the upper side of the material and the clamping mechanism, leading to wobbling and instability during material handling. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides an automatic clamping mechanism with higher stability.

[0006] The solution adopted by the utility model to solve its technical problems is: an automatic clamping mechanism, including a carrier plate, a positioning column, a clamping assembly, a sensor and an airbag, wherein a series of mounting screw holes are provided on the carrier plate, a hoisting mechanism or a mechanical arm is connected to the upper part of the carrier plate, a positioning window is provided through the middle of the carrier plate, and a sensor is installed on the positioning window, the clamping assembly and the positioning column are provided in plurality, and the clamping assembly and the positioning column are installed on the carrier plate through the mounting screw holes, wherein the positioning column is used to guide the precise positioning of the material, the clamping assembly includes a connecting plate, a cylinder, a support block, a lever And a clamping jaw block; one end of the connecting plate is fixedly connected to the carrier plate, and the other end is installed with a fixed cylinder. The clamping jaw block is hinged at the end of the telescopic rod of the cylinder. An axial hole is provided in the middle of the clamping jaw block. The support block is installed on the side of the cylinder facing the carrier plate. One end of the lever is hinged at the end of the support block, and the other end is hinged on the axial hole in the middle of the clamping jaw block. The clamping jaw block is driven to rotate around the end of the lever by the extension and contraction of the cylinder, so that the clamping jaw block can buckle on the edge of the workpiece and clamp the workpiece under the carrier plate. The airbag is an annular airbag, which is fitted on the carrier plate, and the airbag and the clamping assembly are located on the same side of the carrier plate.

[0007] Furthermore, the carrier plate is a rectangular metal plate.

[0008] Furthermore, the positioning column includes a positioning sleeve and a column body. The positioning sleeve is fixedly mounted on the carrier plate through mounting screw holes, and the column body is sleeved on the positioning sleeve.

[0009] Furthermore, the positioning sleeve is provided with an internal thread, and the cylinder and the positioning sleeve are fitted with the thread, and the lower end of the cylinder is provided with an arc shape to avoid damaging the surface of the material when the cylinder guides and positions the material.

[0010] Furthermore, the air source of the cylinder is connected to the airbag through a branch of an air pipe joint, and a control valve is provided on the branch to control the air source to ventilate or deflate the airbag.

[0011] Furthermore, the end of the clamping jaw block facing the workpiece material is set to an arc shape, and the clamping jaw block clamps the outer edge of the workpiece material in an external clamping manner.

[0012] The beneficial effects of this utility model are as follows: The clamping mechanism provided by this utility model incorporates an annular airbag. After clamping is completed, the airbag is ventilated by the air source, causing it to expand and press against the upper side of the material, forming a structure that supports from below and presses from above, significantly enhancing the stability of the material in the clamping state. The use of the annular airbag effectively solves the problem of material instability caused by tolerances, provides additional support, and keeps the material stable throughout the processing or handling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is one of the three-dimensional structural diagrams of the automatic clamping mechanism;

[0014] Figure 2This is the second schematic diagram of the three-dimensional structure of the automatic clamping mechanism;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping assembly;

[0016] Figure 4 It is a schematic diagram of the side structure of the clamping assembly;

[0017] Figure 5 It is a schematic diagram of the dynamic clamping mechanism clamping the material state.

[0018] Numbers in the figure: 1, carrier plate; 2, positioning column; 3, clamping assembly; 4, positioning window; 5, sensor; 6, airbag; 7, material; 301, connecting plate; 302, cylinder; 303, support block; 304, lever; 305, clamping jaw block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below.

[0020] Example 1: Figure 1 As shown, the utility model provides an automatic clamping mechanism, which includes a carrier plate 1 made of a rectangular metal plate, and corresponding mounting screw holes are provided on the carrier plate 1. A series of positioning columns 2 and clamping components 3 are installed on the carrier plate 1 through the mounting screw holes.

[0021] The automatic clamping mechanism provided by the present invention can be adjusted according to the structure and shape of the material 7 on the production line, wherein the positioning column 2 is used to dock the positioning point on the material 7. The positioning column 2 is guided to accurately position the material 7 to ensure accuracy during clamping and displacement.

[0022] The positioning column 2 includes a positioning sleeve and a column body, the positioning sleeve is fixedly mounted on the carrier plate 1 through a mounting screw hole, and the column body is sleeved on the positioning sleeve. According to different positioning points of the material 7, different columns can be replaced to adapt to different positioning points.

[0023] The positioning sleeve is provided with an internal thread, and the cylinder and the positioning sleeve are fitted with the thread. The lower end of the cylinder is set in an arc shape to avoid damaging the surface of the material 7 when the cylinder guides the positioning material 7.

[0024] like Figure 3 and Figure 4As shown, the clamping assembly 3 includes a connecting plate 301, a cylinder 302, a support block 303, a lever 304 and a clamping claw block 305; the connecting plate 301 is a hard rectangular metal plate, one end of the connecting plate 301 is fixedly connected to the carrier plate 1, and the other end is installed with a fixed cylinder 302. The cylinder 302 and the positioning column 2 have the same orientation and are both located on the same side of the carrier plate 1. The clamping claw block 305 is hinged to the end of the telescopic rod of the cylinder 302, and an axial hole is provided in the middle of the clamping claw block 305. The support block 303 is installed on the side of the cylinder 302 facing the carrier plate 1, one end of the lever 304 is hinged to the end of the support block 303, and the other end is hinged to the axial hole in the middle of the clamping claw block 305. The clamping claw block 305 is driven to rotate around the end of the lever 304 by the extension and contraction of the cylinder 302, so that the clamping claw block 305 can buckle on the edge of the material 7 and clamp the material 7 under the carrier plate 1.

[0025] The end of the clamping jaw block 305 facing the workpiece material 7 is set to an arc shape, and the clamping jaw block 305 clamps the outer edge of the workpiece material 7 in an external clamping manner to reduce the contact area and avoid damage to the surface of the workpiece material 7.

[0026] The method of use is: the air pipe joint of the cylinder 302 is ventilated, the cylinder 302 is extended, and the telescopic rod of the cylinder 302 is pushed downward, driving the clamping jaw block 305 to rotate around the end of the lever 304, and the lever 304 also rotates accordingly, and the clamping jaw block 305 clamps the edge ring of the material 7, thereby completing the clamping of the material 7; conversely, the telescopic rod of the cylinder 302 is retracted, driving the clamping jaw block 305 to rotate in the opposite direction around the axis hole, and the lever 304 moves accordingly, and the clamping jaw block 305 is flipped to the vertical position, thereby releasing the material 7.

[0027] A through positioning window 4 is provided in the middle of the carrier plate 1, and a sensor 5 is installed on the positioning window 4 through a sheet metal part. After clamping the material 7, the sensor 5 senses the material 7 and gives feedback, which can notify the automatic clamping mechanism that it can be shifted. If the product is not clamped or the clamped material 7 falls off, the sensor 5 senses it and gives feedback that it cannot be shifted.

[0028] There must be corresponding tolerances in industrial manufacturing. Therefore, when the clamping mechanism clamps the material 7, when the lower clamping claw block 305 is used alone to lift and clamp the material 7, there must be a gap between the upper side of the material 7 and the carrier plate 1, which will cause the material 7 to be unstable during the clamping movement.

[0029] Therefore, a ring-shaped airbag 6 is further attached to the carrier plate 1. The airbag 6 is attached to the carrier plate 1 and is located on the same side of the carrier plate 1 as the clamping assembly 3. The air source of the cylinder 302 is connected to the airbag 6 via a branch of an air pipe joint. A control valve is also provided on this branch to control the air supply to the airbag 6.

[0030] like Figure 5As shown, after the clamping mechanism clamps the material 7, the clamping claw block 305 of the clamping assembly 3 lifts the material 7 to extend outward, and the airbag 6 is located between the carrier plate 1 and the material 7. The airbag 6 is ventilated through the air source, and the airbag 6 expands and presses the upper side of the material 7, so that the clamping state of the material 7 forms a structure of supporting downward and pressing upward, ensuring the stability of the material 7 during the clamping.

[0031] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. An automatic clamping mechanism, characterized in that: The invention comprises a carrier plate (1), a positioning column (2), a clamping assembly (3), a sensor (5) and an airbag (6), wherein a series of mounting screw holes are provided on the carrier plate (1), a hoisting mechanism or a mechanical arm is connected to the upper part of the carrier plate (1), a positioning window (4) is provided through the middle part of the carrier plate (1), and a sensor (5) is installed on the positioning window (4), the clamping assembly (3) and the positioning column (2) are provided in plurality, and the clamping assembly (3) and the positioning column (2) are installed on the carrier plate (1) through the mounting screw holes, wherein the positioning column (2) is used for guiding and accurately positioning the material (7), the clamping assembly (3) comprises a connecting plate (301), a cylinder (302), a support block (303), a lever (304) and a clamping claw block (305); one end of the connecting plate (301) is fixedly connected to the carrier plate (1), a fixed cylinder (302) is installed on the other end, a clamping jaw block (305) is hinged to the end of the telescopic rod of the cylinder (302), an axial hole is set in the middle of the clamping jaw block (305), and a support block (303) is installed on the side of the cylinder (302) facing the carrier (1). One end of the lever (304) is hinged to the end of the support block (303), and the other end is hinged to the axial hole in the middle of the clamping jaw block (305). The clamping jaw block (305) is driven to rotate around the end of the lever (304) by the cylinder (302) to be telescopic, so that the clamping jaw block (305) can be buckled on the edge of the workpiece to clamp the workpiece under the carrier (1), and the airbag (6) is an annular airbag (6). The airbag (6) is fitted on the carrier (1), and the airbag (6) and the clamping assembly (3) are located on the same side of the carrier (1).

2. The automatic clamping mechanism according to claim 1, characterized in that: The carrier plate (1) is a rectangular metal plate.

3. The automatic clamping mechanism according to claim 1, characterized in that: The positioning column (2) comprises a positioning sleeve and a column body, the positioning sleeve is fixedly mounted on the carrier plate (1) via mounting screw holes, and the column body is sleeved on the positioning sleeve.

4. The automatic clamping mechanism according to claim 3, characterized in that: The positioning sleeve is provided with an internal thread, and the cylinder and the positioning sleeve are provided with a threaded sleeve. The lower end of the cylinder is provided with an arc shape to prevent the surface of the material (7) from being damaged when the cylinder guides and positions the material (7).

5. The automatic clamping mechanism according to claim 1, characterized in that: The air source of the air cylinder (302) is connected to the air bag (6) through a branch of an air pipe joint. A control valve is provided on the branch to control the air source to ventilate or deflate the air bag (6).

6. The automatic clamping mechanism according to claim 1, characterized in that: The end of the clamping jaw block (305) facing the workpiece material (7) is configured in an arc shape, and the clamping jaw block (305) clamps the outer edge of the workpiece material (7) in an external clamping manner.

Images