Quick release clamp

Abstract

The utility model belongs to the field of mechanical locking device, specifically discloses a quick tight clamp, aims at solving the problem of traditional clamp operation cumbersome, locking force is insufficient and unidirectional force application. The clamp includes locking seat, wrench, cam, locking sliding block and connecting rod group. Locking seat is used for fixing on the base body, the middle part of wrench is hinged in locking seat, cam and locking sliding block are located on the upper and lower sides of workpiece respectively, and are hinged with the upper and lower parts of wrench through first, second connecting rod group respectively. When driving wrench, first connecting rod group drives cam to rotate and press down the upper surface of workpiece, and second connecting rod group drives locking sliding block to move horizontally and converts into vertical upward jacking force, thereby synchronously compressing and locking workpiece from two directions. The utility model realizes bidirectional self-locking through single action input, has the advantages of large locking force, good rigidity, quick and simple operation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical locking device technology, specifically to a clamp that can apply force simultaneously from both sides of the object being locked to achieve rapid clamping and loosening. Background Technology

[0002] In machining, equipment assembly, and other fields, reliable locking and securing of workpieces or components is frequently required. Traditional clamps, such as bolt clamps and one-way set screws, generally suffer from numerous operation steps and low locking efficiency. Especially in applications requiring the application to withstand large loads or vibrations, unidirectional locking force may lead to insufficient workpiece stability, affecting machining accuracy or equipment safety.

[0003] For example, in the indexing and locking of large rotary tables, a single bolt or wedge is typically used for locking from one side. This method not only has limited locking force, but may also cause slight tilting of the table due to unidirectional force, affecting positioning accuracy. Although some bidirectional locking mechanisms exist, their structures are often complex, requiring multiple power sources or operating steps, making it difficult to achieve rapid and synchronous clamping and loosening. Utility Model Content

[0004] This utility model provides a quick-release clamp that can drive two upper and lower actuators to move synchronously in opposite directions and clamp the workpiece from two directions.

[0005] The present invention provides a quick-release clamp for locking a workpiece from both vertical and horizontal directions. The clamp includes a locking seat, a wrench, a cam, a locking slider, a first linkage group, and a second linkage group. The locking seat is fixedly mounted on a base. The middle part of the wrench is hinged to the locking seat. The cam is hinged to the upper part of the wrench via the first linkage group. The locking slider is hinged to the lower part of the wrench via the second linkage group. The wrench has a locking position for locking the clamp and a releasing position for releasing the clamp. When the wrench is in the locking position, the cam, driven by the first linkage group, presses downwards against the upper surface of the workpiece, while the locking slider, driven by the second linkage group, pushes upwards against the lower surface of the workpiece, thereby achieving simultaneous clamping and locking of the workpiece from both vertical and horizontal directions.

[0006] Beneficial effects: (1) Bidirectional synchronous locking with good rigidity: By using a wrench, the upper cam and the lower locking slider (through the top block) are driven to move in opposite directions, applying a balanced clamping force to the workpiece from both the top and bottom. This bidirectional clamping greatly improves the rigidity and stability of the locking, effectively resisting vibration and torsional torque during processing. (2) Force amplification and self-locking: Utilizing the dead point characteristics of the linkage mechanism, the mechanism can achieve self-locking in the locking position. Even if the operating force on the wrench is removed, the fixture can maintain the locking state, which is safe and reliable. The use of the inclined plane mechanism (locking inclined plane and driving inclined plane) effectively amplifies the horizontal force and converts it into a vertical clamping force, providing a strong locking force. (3) Quick and easy operation: The entire locking and unlocking process can be completed by using only one wrench, eliminating the need to use multiple tools or repeatedly tighten bolts, significantly improving work efficiency and reducing labor intensity. (4) Modular and widely applicable: The fixture can be installed as an independent modular component, which can be conveniently installed on different equipment or bases, such as indexing tables, positioning platforms, and cover plate locking of large equipment, etc., and has strong versatility.

[0007] Furthermore, the upper surface of the locking slider is an inclined locking slope; the lower part of the locking seat is provided with a top block, and the lower surface of the top block is provided with a driving slope that cooperates with the locking slope; when the locking slider moves horizontally, the top block is driven to produce a vertical displacement to clamp the workpiece through the cooperation of the locking slope and the driving slope.

[0008] Furthermore, the top block is embedded in the mounting hole at the lower part of the locking seat and can slide vertically within the mounting hole.

[0009] Furthermore, the locking seat is in the form of a pair of parallel "[" shaped structures, and the wrench, cam and locking slider are arranged between the pair of "[" shaped structures.

[0010] Furthermore, the cam has an eccentric wheel profile to provide downward stroke and locking force during rotation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a quick-release clamp according to the present invention; Figure 2 This is a structural schematic diagram of a quick-release clamp (with one side of the locking seat removed) according to the present invention. Detailed Implementation

[0012] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: locking seat 1, wrench 2, cam 3, locking slider 4, first linkage group 5, second linkage group 6, and top block 7.

[0013] Example 1 like Figure 1 and Figure 2 As shown, a quick-release clamp comprises a locking seat 1, a wrench 2, a cam 3, a locking slider 4, a first linkage group 5, a second linkage group 6, and a top block 7, wherein the cam 3 has an eccentric wheel structure.

[0014] The main body of the clamp consists of a pair of parallel "[" shaped locking seats 1, and the middle part of the wrench 2 is hinged to the middle position of the pair of locking seats 1 by a pin.

[0015] The upper part of the locking seat 1 is hinged to a cam 3, and the lower part of the locking seat 1 is slidably fitted with a locking slider 4.

[0016] The upper part of the wrench 2 is connected to the cam 3 through the first connecting rod group 5. The two ends of the first connecting rod group 5 are respectively hinged to the upper end of the wrench 2 and the non-center part of the cam 3 to form a crank rocker mechanism.

[0017] The lower part of the wrench 2 is connected to the locking slider 4 via the second linkage group 6. The two ends of the second linkage group 6 are hinged to the lower end of the wrench 2 and the locking slider 4, respectively. The upper surface of the locking slider 4 is machined with a locking bevel.

[0018] The top block 7 is embedded in a vertical guide hole at the lower part of the locking seat 1 and can slide up and down along the hole. The lower surface of the top block 7 is machined with a driving slope that mates with the locking slope. The upper surface of the top block 7 is used to contact the workpiece.

[0019] Working principle: Locked State: When wrench 2 is pulled inward, the first linkage group 5 drives cam 3 to rotate clockwise, using its eccentric profile to press downward against the upper surface of the workpiece. Simultaneously, the lower part of wrench 2 drives the second linkage group 6 to move to the left, thereby pulling the locking slider 4 outward (to the left) horizontally. The locking ramp of the locking slider 4, through its engagement with the ramp of the driving ramp of the top block 7, generates a vertical component force, driving the top block 7 to move upward and firmly press against the lower surface of the workpiece. Finally, when wrench 2 reaches the final locked position, both the first linkage group 5 and the second linkage group 6 have passed their dead points, and the mechanism achieves self-locking. The downward pressure of cam 3 and the upward force of top block 7 work together to firmly lock the workpiece from both above and below.

[0020] Released state: Pulling the wrench 2 outward causes the first linkage group 5 to rotate the cam 3 counterclockwise, disengaging its large-radius portion from the upper surface of the workpiece and releasing the upper clamping force. Simultaneously, the lower part of the wrench 2 pushes the second linkage group 6 to the right, thereby causing the locking slider 4 to move horizontally inward (to the right). The top block 7 returns to its original position under gravity, releasing the lower clamping force, and the workpiece is now in a freely movable state.

[0021] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A quick-release clamp for locking a workpiece from both vertical and horizontal directions, characterized in that: The device includes a locking seat, a wrench, a cam, a locking slider, a first linkage group, and a second linkage group. The locking seat is fixedly mounted on the base. The middle part of the wrench is hinged to the locking seat. The cam is hinged to the upper part of the wrench via the first linkage group. The locking slider is hinged to the lower part of the wrench via the second linkage group. The wrench has a locking position for locking the clamp and a releasing position for releasing the clamp. When the wrench is in the locking position, the cam presses downward against the upper surface of the workpiece under the action of the first linkage group, while the locking slider presses upward against the lower surface of the workpiece under the action of the second linkage group, thereby achieving synchronous pressing and locking of the workpiece from both top and bottom directions.

2. The quick-release clamp according to claim 1, characterized in that: The upper surface of the locking slider is an inclined locking slope; the lower part of the locking seat is provided with a top block, and the lower surface of the top block is provided with a driving slope that cooperates with the locking slope; when the locking slider moves horizontally, the top block is driven to produce a vertical displacement through the cooperation of the locking slope and the driving slope to clamp the workpiece.

3. The quick-release clamp according to claim 2, characterized in that: The top block is embedded in the mounting hole at the lower part of the locking seat and can slide vertically within the mounting hole.

4. A quick-release clamp according to claim 3, characterized in that: The locking seat is a pair of parallel "[" shaped structures, and the wrench, cam and locking slider are arranged between the pair of "[" shaped structures.

5. A quick-release clamp according to claim 4, characterized in that: The cam has an eccentric wheel structure.

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