Portable fine-adjustable mechanical clamp

Abstract

The utility model discloses a portable fine-adjustable mechanical clamp which comprises a base, the top face of the base is rotationally connected with a rotary table, two supports are symmetrically installed on the top face of the rotary table, the two supports are jointly rotationally connected with a workbench, and the top face of the rotary table is symmetrically rotationally connected with two telescopic mechanisms. When the metal plate punching device is used, operation is easy, the position of a metal plate does not need to be adjusted manually, the punching angle of the metal plate can be finely adjusted conveniently, then art creation punching can be achieved, the punching efficiency is improved, and the punching efficiency is improved. And meanwhile, the angle of the metal plate is adjusted, so that a teacher can conveniently display punching details, the device can be suitable for clamping metal plates of different shapes, the device is suitable for punching of various metal plates, students can conveniently diverge creative thinking, and the device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching jigs, in particular to a portable and fine-tunable mechanical jig. Background Art

[0002] Mechanical engineering teaching is of great significance. First of all, it provides students with a solid theoretical foundation, covering multiple disciplinary fields such as mechanics, materials science, and thermodynamics, enabling students to deeply understand the working principles and design principles of mechanical systems. Secondly, the practical teaching link allows students to operate by themselves, cultivating their practical hands-on ability and problem-solving ability. During the teaching process, punching technology will be demonstrated to facilitate students' understanding of the processing technology. Usually, jigs are used to fix workpieces to reduce the displacement and movement of workpieces during processing, so as to ensure that the processed parts meet the requirements.

[0003] However, when the existing teaching jigs clamp metal plates, they are only limited to single-type metal plates and cannot clamp non-standard metal plates, resulting in great limitations for students in innovative design and artistic creation. Moreover, they are limited to planar punching, which not only limits the punching design but also is not convenient for teaching demonstrations. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the background art and propose a portable and fine-tunable mechanical jig.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The portable and fine-tunable mechanical jig includes a base. The top surface of the base is rotatably connected with a turntable. Two brackets are symmetrically installed on the top surface of the turntable. A workbench is rotatably connected by the two brackets together. Two telescopic mechanisms are symmetrically and rotatably connected to the top surface of the turntable, and the other end of each telescopic mechanism is rotatably connected to the bottom surface of the workbench. Fixing seats are symmetrically installed on the top surface of the workbench. A plurality of electric telescopic rods are symmetrically installed on the outside of each fixing seat. A plurality of electric telescopic rods on the same side are jointly installed with a clamping seat. A blowing device is fixedly installed on the top surface of each clamping seat, and the blowing device is communicated with the inside of the clamping seat. A number of sleeves are fixedly installed on the outside of each clamping seat, and each sleeve is communicated with the clamping seat. A push rod is slidably connected in each sleeve. A piston is fixedly installed at the bottom end of each push rod. A spring is jointly installed between the outside of each piston and the bottom wall of the corresponding sleeve.

[0007] Preferably, each of the telescopic mechanisms includes a telescopic seat, and one end of each telescopic seat is rotatably connected to the top surface of the turntable. A telescopic rod is slidably connected inside each telescopic seat, and the other end of each telescopic rod is rotatably connected to the bottom surface of the workbench. Each telescopic seat drives the telescopic rod to slide through a driving mechanism.

[0008] Preferably, each of the driving mechanisms includes a motor, and the motor is fixedly installed on the bottom wall of the telescopic seat. The output shaft of the motor is connected to a threaded rod, and the threaded rod is threadedly connected to the telescopic rod.

[0009] Preferably, a pressure relief pipe is communicated with the top surface of each clamping seat, and a pressure relief valve is installed on each pressure relief pipe.

[0010] Preferably, an anti-slip pad is fixedly installed at the end of each push rod away from the piston, and the anti-slip pad is made of rubber.

[0011] Preferably, a plurality of support feet are symmetrically installed on the bottom surface of the base, and the position of the rotational connection at the bottom end of each telescopic mechanism corresponds to the installation connection position of the bracket.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By setting devices such as telescopic seats, motors, telescopic rods, workbenches, and brackets, the present utility model realizes starting the motor to drive the telescopic rod to rotate in the telescopic seat, and then pushing the workbench to rotate on the bracket, so as to adjust the angle of the metal plate clamped on the workbench, and further facilitate the adjustment of the punching angle of the metal plate.

[0014] 2. By setting devices such as a blast device, springs, push rods, pistons, and sleeves, the present utility model realizes starting the blast device to push a plurality of pistons to slide outwards in the sleeves, and then each push rod abuts against the outer side of the metal plate, and the different telescopic lengths of each push rod facilitate clamping metal plates of different shapes.

[0015] In summary, when the present utility model is used, the operation is simple, and it is not necessary to manually adjust the position of the metal plate, which is convenient for fine-tuning the punching angle of the metal plate. Furthermore, artistic creation punching can be achieved, and at the same time, the angle adjustment of the metal plate is convenient for teachers to display punching details, and it can be applied to the clamping of metal plates of different shapes, making it suitable for punching various metal plates, thereby facilitating students to diverge their creative thinking and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a portable and fine-tunable mechanical fixture proposed by the present utility model;

[0017] Figure 2Schematic structural diagram of the telescopic mechanism of the portable and finely adjustable mechanical fixture proposed by the present utility model;

[0018] Figure 3 Schematic cross-sectional structural diagram of the fixed seat of the portable and finely adjustable mechanical fixture proposed by the present utility model;

[0019] Figure 4 is Figure 3 Enlarged schematic diagram at position A.

[0020] In the figure: 1 base, 2 support feet, 3 turntable, 4 bracket, 5 telescopic mechanism, 6 workbench, 7 fixed seat, 8 clamping seat, 9 electric telescopic rod, 10 pressure relief valve, 11 air blowing device, 12 motor, 13 threaded rod, 14 extension rod, 15 telescopic seat, 16 push rod, 17 anti-slip pad, 18 piston, 19 spring, 20 sleeve. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Referring to Figures 1-4 , the portable and finely adjustable mechanical fixture includes a base 1. A plurality of support feet 2 are symmetrically installed on the bottom surface of the base 1. The top surface of the base 1 is rotatably connected to a turntable 3, and the turntable 3 is driven to rotate by an external driving mechanism. Two brackets 4 are symmetrically installed on the top surface of the turntable 3. A workbench 6 is rotatably connected by the two brackets 4. Two telescopic mechanisms 5 are symmetrically and rotatably connected to the top surface of the turntable 3, and the other end of each telescopic mechanism 5 is rotatably connected to the bottom surface of the workbench 6. Each telescopic mechanism 5 includes a telescopic seat 15. The position of the rotational connection at the bottom end of each telescopic mechanism 5 corresponds to the installation connection of the bracket 4, so as to extend the rotational angle of the workbench 6. The maximum rotational angle of the workbench 6 can reach from zero to ninety degrees. One end of each telescopic seat 15 is rotatably connected to the top surface of the turntable 3. An extension rod 14 is slidably connected in each telescopic seat 15, and the other end of each extension rod 14 is rotatably connected to the bottom surface of the workbench 6. Each telescopic seat 15 drives the extension rod 14 to slide through a driving mechanism. It should be noted that the two telescopic seats 15 can drive the workbench 6 to rotate around the connection point between the workbench 6 and the bracket 4 by telescoping, so as to convert the angle of the metal plate clamped on the workbench 6, without the need for manual adjustment of the position of the metal plate, making the operation of the device more convenient. Furthermore, artistic creation punching can be realized, and it is convenient to display the punching details;

[0023] Each driving mechanism includes a motor 12, and the motor 12 is fixedly installed on the bottom wall of the telescopic seat 15. The output shaft of the motor 12 is connected to a threaded rod 13, and the threaded rod 13 is threadedly connected to the extension rod 14. It is worth noting that both the telescopic seat 15 and the extension rod 14 are square. Thus, the extension rod 14 is limited by the cavity formed in the telescopic seat 15, preventing it from rotating. Then, by rotating the threaded rod 13, the extension rod 14 can be driven to slide;

[0024] On the top surface of the workbench 6, fixing seats 7 are symmetrically installed. On the outer side of each fixing seat 7, a plurality of electric telescopic rods 9 are symmetrically installed. Different-sized metal plates can be clamped by the plurality of electric telescopic rods 9. A clamping seat 8 is commonly installed by the plurality of electric telescopic rods 9 on the same side. A pressure relief pipe is communicated with the top surface of each clamping seat 8. A pressure relief valve 10 is installed on each pressure relief pipe. A blowing device 11 is fixedly installed on the top surface of each clamping seat 8, and the blowing device 11 is communicated with the inside of the clamping seat 8. The inside of the clamping seat 8 can be inflated by the blowing device 11, and the air can be discharged through the pressure relief valve 10;

[0025] A plurality of sleeves 20 are fixedly installed on the outer side of each clamping seat 8, and each sleeve 20 is communicated with the clamping seat 8. A push rod 16 is slidably connected in each sleeve 20. A piston 18 is fixedly installed at the bottom end of each push rod 16. A spring 19 is commonly installed between the outer side of each piston 18 and the bottom wall of the corresponding sleeve 20 to facilitate the reset of the push rod 16. An anti-slip pad 17 is fixedly installed at one end of each push rod 16 away from the piston 18, and the material of the anti-slip pad 17 is rubber. It is worth noting that the piston 18 is pushed to move by gas, and then the push rod 16 is pushed to abut against the outer side of the metal plate, thereby fixedly clamping the metal plate. The friction between the push rod 16 and the metal plate is increased by the anti-slip pad 17, and the outer side of the metal plate will not be damaged.

[0026] When the present utility model is in use, first start the telescopic mechanism 5. Through the cooperation of the motor 12 and the threaded rod 13, the extension rod 14 is driven to extend upward. Since one end of the telescopic seat 15 is rotatably connected to the turntable 3, and one end of the extension rod 14 is rotatably connected to the bottom surface of the workbench 6, the workbench 6 can be driven to rotate as the extension rod 14 extends. When the workbench 6 rotates to the horizontal plane, the telescopic mechanism 5 can be stopped. Then, the metal plate to be processed is placed on the top surface of the workbench 6;

[0027] Then start the blowing device 11. The inside of the clamping seat 8 is blown by the blowing device 11, driving each piston 18 to slide outwards, and then pushing each push rod 16 to extrude outwards. With the cooperation of the anti-slip pad 17, the metal plate is fixed. The telescopic length of each push rod 16 is limited by the shape of the metal plate, so that the telescopic lengths are inconsistent, and special-shaped metal plates can be effectively clamped, thus being applicable to various forms of teaching;

[0028] Then, according to the required punching angle, the telescopic length of the telescopic mechanism 5 can be adjusted to adjust the rotation angle of the workbench 6, thereby facilitating the change of the punching angle of the workbench 6 as required. At the same time, the turntable 3 can be rotated by an external device to rotate the entire metal plate, thereby finely adjusting the punching angle, so as to achieve artistic creation punching and facilitate the display of punching details.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A portable fine-adjustable mechanical fixture, comprising a base (1), characterized in that: The top surface of the base (1) is rotatably connected to a turntable (3); two brackets (4) are symmetrically mounted on the top surface of the turntable (3); the two brackets (4) are rotatably connected to a workbench (6); the top surface of the turntable (3) is symmetrically connected to two telescopic mechanisms (5); the other end of each telescopic mechanism (5) is rotatably connected to the bottom surface of the workbench (6); a fixed seat (7) is symmetrically mounted on the top surface of the workbench (6); a plurality of electric telescopic rods (9) are symmetrically mounted on the outer side of each fixed seat (7); the plurality of electric telescopic rods (9) located on the same side are symmetrically mounted on the top surface of the turntable (3); A clamping seat (8) is installed together, and a blowing device (11) is fixedly installed on the top surface of each clamping seat (8), and the blowing device (11) is connected to the inside of the clamping seat (8). A plurality of sleeves (20) are fixedly installed on the outside of each clamping seat (8), and each sleeve (20) is connected to the clamping seat (8). A push rod (16) is slidably connected inside each sleeve (20), and a piston (18) is fixedly installed at the bottom end of each push rod (16). A spring (19) is installed between the outside of each piston (18) and the bottom wall of the sleeve (20) corresponding to the position.

2. The portable fine-adjustable mechanical fixture according to claim 1, characterized in that: Each of the telescopic mechanisms (5) comprises a telescopic seat (15), and one end of each telescopic seat (15) is rotatably connected to the top surface of the turntable (3), an extension rod (14) is slidably connected inside each of the telescopic seats (15), and the other end of each extension rod (14) is rotatably connected to the bottom surface of the workbench (6), and each of the telescopic seats (15) drives the extension rod (14) to slide through a driving mechanism.

3. The portable fine-adjustable mechanical fixture according to claim 2, characterized in that: Each of the driving mechanisms comprises a motor (12), and the motor (12) is fixedly mounted on the bottom wall of the telescopic seat (15), the output shaft of the motor (12) is connected to a threaded rod (13), and the threaded rod (13) is threadedly connected to the extension rod (14).

4. The portable fine-adjustable mechanical fixture according to claim 3, characterized in that: The top surface of each clamping seat (8) is connected to a pressure relief pipe, and a pressure relief valve (10) is installed on each pressure relief pipe.

5. The portable fine-adjustable mechanical fixture according to claim 4, characterized in that: An anti-skid pad (17) is fixedly mounted on one end of each push rod (16) away from the piston (18), and the material of the anti-skid pad (17) is rubber.

6. The portable fine-adjustable mechanical fixture according to claim 5, characterized in that: A plurality of supporting legs (2) are symmetrically mounted on the bottom surface of the base (1), and the bottom rotation connection of each telescopic mechanism (5) corresponds to the position of the mounting connection of the bracket (4).

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