A linkage clamping mechanism

Abstract

The application discloses a linkage type clamping mechanism, which comprises a bottom plate (1), characterized in that: a first mounting hole is formed in the bottom plate (1), a first guide sleeve (2) is fixedly connected in the first mounting hole, a passive pressure rod (3) is movably connected in the first guide sleeve (2), a first pressing plate (4) located above the bottom plate (1) is arranged at the top end of the passive pressure rod (3), and the bottom end of the passive pressure rod (3) is hingedly connected with one end of a connecting rod (5); the middle part of the connecting rod (5) is rotatably supported through a rotating shaft (6), and the rotating shaft (6) is located below the bottom plate (1) and is fixedly connected with the bottom plate (1).

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tooling fixtures, in particular to a linkage type clamping mechanism. BACKGROUND

[0002] When machining a workpiece, a tooling fixture or the like mechanism is needed to position and press the workpiece, so as to prevent the workpiece from moving due to external force during machining, so as to ensure the machining can be carried out smoothly. If a clamp has two clamping components, generally, the two clamping components need to be operated respectively, so as to realize the clamping operation of the workpiece, which will lead to the relatively complex overall structure of the clamp, and the operation process is relatively complicated. Especially, the two clamping components are generally distributed on both sides of the clamping position, and both clamping components need enough installation and operation space, so that in some limited installation and operation conditions, the installation or operation may be difficult. Therefore, a method or device is needed to solve the above problems. SUMMARY

[0003] The present application is to solve the above technical problems, and proposes a linkage type clamping mechanism which has simple structure, ingenious design and reasonable layout, and can realize the linkage of the clamping components on both sides by operating only one side of the clamping component to realize the clamping action.

[0004] The technical solution of the present application is: a linkage type clamping mechanism, comprising a bottom plate 1, characterized in that: a first mounting hole is formed in the bottom plate 1, a first guide sleeve 2 is fixedly connected in the first mounting hole, a passive pressing rod 3 is movably connected in the first guide sleeve 2, a first pressing plate 4 located above the bottom plate 1 is arranged at the top end of the passive pressing rod 3, and the bottom end of the passive pressing rod 3 is hingedly connected with one end of a connecting rod 5, the middle part of the connecting rod 5 is rotatably supported by a rotating shaft 6, and the rotating shaft 6 is located below the bottom plate 1 and fixedly connected with the bottom plate 1,

[0005] A second mounting hole is also formed in the bottom plate 1, a second guide sleeve 7 is fixedly connected in the second mounting hole, a driving pressing sleeve 8 is movably connected in the second guide sleeve 7, a driving pressing rod 9 is fixedly connected at the bottom end of the driving pressing sleeve 8, a threaded section 10 is arranged at the top end of the driving pressing rod 9, the threaded section 10 is threadedly connected in a T-shaped nut 11, a second pressing plate 14 is arranged at the top end of the driving pressing sleeve 8, the top end of the screw rod 13 protrudes from the second pressing plate 14, and a nut wrench 15 threadedly connected with the screw rod 13 is rotatably connected to the top end surface of the second pressing plate 14, the T-shaped nut 11 is movably sleeved in the inner cavity of the driving pressing sleeve 8, and a limiting nut 18 located below the second guide sleeve 7 is threadedly connected to the lower part of the driving pressing rod 9.

[0006] The bottom end of the active pressure sleeve 8 is hinged to the end of the connecting rod 5 away from the passive pressure rod 3.

[0007] The active pressure sleeve 8 has a limiting groove 16 distributed along its length on its side wall, and a limiting block 17 is fixedly connected to the inner wall of the second guide sleeve 7. The limiting block 17 is slidably connected in the limiting groove 16.

[0008] The lower part of the passive pressure rod 3 is threadedly connected to a limiting nut 18 located below the first guide sleeve 2.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] This type of linkage clamping mechanism features a simple structure, ingenious design, and reasonable layout. Addressing the problems inherent in traditional clamps, it employs a unique structure comprising two sets of clamping actuators connected by a linkage. This allows the operator to transmit motion to the actuator on the other side via the linkage by operating a nut wrench on one side, achieving clamping on both sides while operating from one side. It is suitable for applications with limited installation space or insufficient operating space after installation. Furthermore, its manufacturing process is simple and cost-effective. Therefore, it possesses numerous advantages and is particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the structure of an embodiment of the present invention (in a non-clamping state).

[0012] Fig. 2 This is a structural schematic diagram of an embodiment of the present invention (the first pressure plate is in a clamping state).

[0013] Fig. 3 This is a structural schematic diagram of an embodiment of the present invention (both the first pressure plate and the second pressure plate are in a clamping state). Detailed Implementation

[0014] Specific embodiments of the present invention will now be described in conjunction with the accompanying drawings. Figs. 1 to 3 As shown: A linkage clamping mechanism includes a base plate 1 as a foundation. A first mounting hole is formed on the base plate 1, and a first guide sleeve 2 is fixedly connected in the first mounting hole. A passive pressure rod 3 is movably connected in the first guide sleeve 2. A first pressure plate 4 is provided at the top of the passive pressure rod 3 above the base plate 1. The bottom end of the passive pressure rod 3 is hinged to one end of a connecting rod 5. The middle part of the connecting rod 5 is rotatably supported by a rotating shaft 6, which is located below the base plate 1 and fixedly connected to the base plate 1.

[0015] The second mounting hole is fixedly connected with a second guide sleeve 7, the second guide sleeve 7 is movably connected with a driving pressing sleeve 8, the bottom end of the driving pressing sleeve 8 is fixedly connected with a driving pressing rod 9, the top end of the driving pressing rod 9 is a threaded section 10, the threaded section 10 is threadedly connected in a T-shaped nut 11, the top end of the T-shaped nut 11 is connected with a screw rod 13 through a cross pin 12, a second pressing plate 14 is arranged at the top end of the driving pressing sleeve 8, the top end of the screw rod 13 protrudes from the second pressing plate 14, and a nut wrench 15 threadedly connected with the screw rod 13 is rotatably connected to the top end surface of the second pressing plate 14, the T-shaped nut 11 is movably sleeved in the inner cavity of the driving pressing sleeve 8, the bottom end of the driving pressing sleeve 8 is hingedly connected with the end of the connecting rod 5 away from the passive pressing rod 3, a limiting nut 18 located below the second guide sleeve 7 is threadedly connected to the lower part of the driving pressing rod 9, and the passive pressing rod 3 is also threadedly connected with a limiting nut 18 located below the first guide sleeve 2.

[0016] The side wall of the driving pressing sleeve 8 is provided with a limiting groove 16 distributed along the length direction, and the inner wall of the second guide sleeve 7 is fixedly connected with a limiting block 17, and the limiting block 17 is slidably connected in the limiting groove 16.

[0017] The working process of the linkage type clamping mechanism is as follows: a supporting block for bearing a workpiece 19 is arranged on the top end surface of the bottom plate 1 at a position between the first mounting hole and the second mounting hole, the workpiece 19 to be positioned and clamped is placed on the supporting block, then the nut wrench 15 is driven to rotate, the nut wrench 15 drives the T-shaped nut 11 connected with the cross pin 12 to rotate when the nut wrench 15 rotates, since the bottom of the T-shaped nut 11 is connected with the threaded section 10 at the top end of the driving pressing rod 9 through internal threads, and the threaded section 10 cannot rotate (the bottom end of the driving pressing rod 9 is connected with the connecting rod 5), therefore, when the T-shaped nut 11 rotates, the threaded section 10 is driven to move longitudinally, the threaded section 10 and the driving pressing rod 9 rise together, thereby driving the connecting rod 5 to swing, the end of the connecting rod 5 connected with the driving pressing rod 9 swings upward, and the other end (the end connected with the passive pressing rod 3) swings downward, thereby pulling the passive pressing rod 3 to move downward relative to the first guide sleeve 2, and the first pressing plate 4 at the top end of the passive pressing rod 3 is pressed on one side of the workpiece 19;

[0018] Continuing to rotate the nut wrench 15, the driving pressure rod 9 is driven to move upward relative to the second guide sleeve 7 until the limiting nut 18 connected to the driving pressure rod 9 contacts the bottom end surface of the second guide sleeve 7, at which time the driving pressure rod 9 cannot continue to move upward, so the T-shaped nut 11 will move downward together with the driving pressure sleeve 8 relative to the second guide sleeve 7, and drive the second pressure plate 14 at the top end of the driving pressure sleeve 8 to move downward until the second pressure plate 14 is pressed against the other side of the workpiece 19, that is, during the entire clamping process, the operator only needs to continuously rotate the nut wrench 15 to sequentially drive the passive pressure rod 3 and the driving pressure sleeve 8 to move downward, and finally realize the clamping operation of the first pressure plate 4 and the second pressure plate 14 on the workpiece 19;

[0019] After the workpiece 19 is clamped, it can be processed. After the processing is completed, the nut wrench 15 is rotated in the reverse direction, the driving pressure sleeve 8 moves upward relative to the second guide sleeve 7, and in the process of movement of the driving pressure sleeve 8, the limiting groove 16 slides relative to the limiting block 17 until the bottom end of the limiting groove 16 contacts the limiting block 17. Under the action of the limiting block 17, the driving pressure sleeve 8 cannot continue to move. Continuing to rotate the nut wrench 15 drives the driving pressure rod 9 to move downward relative to the second guide sleeve 7, and further drives the connecting rod 5 to move as a lever, so that the other end of the connecting rod 5 pushes the passive pressure rod 3 to move upward, thereby releasing the locking of the workpiece 19.

Claims

1. A linkage clamping mechanism comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a first mounting hole, and a first guide sleeve (2) is fixedly connected in the first mounting hole, the first guide sleeve (2) is movably connected with a passive pressing rod (3), the top end of the passive pressing rod (3) is provided with a first pressing plate (4) located above the bottom plate (1), and the bottom end of the passive pressing rod (3) is hingedly connected with one end of a connecting rod (5), the middle part of the connecting rod (5) is rotatably supported through a rotating shaft (6), and the rotating shaft (6) is located below the bottom plate (1) and is fixedly connected with the bottom plate (1), The bottom plate (1) is also provided with a second mounting hole, and a second guide sleeve (7) is fixedly connected in the second mounting hole, the second guide sleeve (7) is movably connected with a driving pressing sleeve (8), the bottom end of the driving pressing sleeve (8) is fixedly connected with a driving pressing rod (9), the top end of the driving pressing rod (9) is a threaded section (10), the threaded section (10) is threadedly connected in a T-shaped nut (11), the top end of the T-shaped nut (11) is connected with a screw rod (13) through a cross pin (12), and the top end of the driving pressing sleeve (8) is provided with a second pressing plate (14), the top end of the screw rod (13) protrudes from the second pressing plate (14), and a nut wrench (15) threadedly connected with the screw rod (13) is rotatably connected to the top end surface of the second pressing plate (14), the T-shaped nut (11) is movably sleeved in the inner cavity of the driving pressing sleeve (8), and the lower part of the driving pressing rod (9) is also threadedly connected with a limiting nut (18) located below the second guide sleeve (7), The bottom end of the driving pressing sleeve (8) is hingedly connected with the end of the connecting rod (5) away from the passive pressing rod (3).

2. The linkage clamp mechanism of claim 1, wherein: The sidewall of the driving pressing sleeve (8) is provided with a limiting groove (16) distributed along the length direction thereof, and the inner wall of the second guide sleeve (7) is fixedly connected with a limiting block (17), and the limiting block (17) is slidably connected in the limiting groove (16).

3. The linkage clamp mechanism of claim 1, wherein: The lower part of the passive pressing rod (3) is threadedly connected with a limiting nut (18) located below the first guide sleeve (2).

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