A drag hook mechanism

Abstract

The utility model belongs to the technical field of draw hook and disclose a draw hook mechanism, including drive assembly, the upper end fixed mounting of drive assembly has fixed component, the upper end of drive assembly is provided with clamp component, clamp component includes first axle pin, the outer wall of first axle pin is provided with first draw hook and second draw hook, the upper end swing joint of first draw hook and second draw hook has second axle pin. The utility model cooperates through drive assembly and clamp component and other structures, cylinder stretches out and drives pull head to move, pull head drives first axle pin to move, first axle pin drives first draw hook and second draw hook to move, makes first draw hook and second draw hook expand outward along arc -shaped sliding slot, promotes draw hook to hook tightly to product, reaches the effect that fixed precision to processing object, and the volume of this draw hook mechanism is smaller, reduces the weight of clamp, and further reduces the manufacturing cost of clamp.

Description

Technical Field

[0001] This utility model belongs to the field of hook technology, specifically a hook mechanism. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for machining. This structure uses a single power source to achieve synchronous clamping on both sides, simplifying the structure and reducing redundancy. It plays a vital role in various machining, assembly, welding and inspection processes. By designing and using fixtures properly, not only can machining accuracy and efficiency be improved, but also the safety and stability of the production process can be guaranteed.

[0003] With the development of technology, robotic arms are widely used on production lines, but their load capacity is limited. Therefore, new requirements have been put forward for the lightweighting of fixtures. While ensuring stable and accurate clamping, some existing fixtures are often large in size and weight, which not only increases the load on the robotic arm, but also increases the manufacturing cost of the fixtures. Therefore, it is necessary to improve them. Utility Model Content

[0004] To address the issue that the clamps mentioned in the background art, while ensuring stable and accurate clamping, are often large in size and weight, which not only increases the load on the robotic arm but also drives up the manufacturing cost of the clamps, this utility model provides a hook mechanism.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hook mechanism, including a driving component, a fixing component fixedly installed on the upper end of the driving component, a clamping component provided on the upper end of the driving component, the clamping component including a first pin, a first hook and a second hook provided on the outer wall of the first pin, and a second pin movably connected to the upper ends of the first hook and the second hook.

[0006] Preferably, the drive assembly includes a cylinder, a pull head is fixedly mounted on the end of the cylinder, and a first pivot pin is provided at the upper end of the pull head.

[0007] Preferably, the fixing component includes a fixing block, and a fixing vertical plate is fixedly installed on the top surface of the fixing block. The fixing block is fixedly connected to the cylinder by bolts.

[0008] Preferably, the first hook and the second hook are the same in shape and size, and both the first hook and the second hook have through grooves on their surfaces, and the through grooves are arc-shaped.

[0009] Preferably, the second pin is movably connected to the first hook and the second hook, and the second pin is movably connected to the fixed vertical plate.

[0010] Preferably, the first hook and the second hook are made of stainless steel, and the lower ends of the first hook and the second hook are provided with holes, through which the first pin is connected to the first hook and the second hook.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of drive components and clamping components, etc., the cylinder extends to drive the pull head to move, the pull head drives the first shaft pin to move, the first shaft pin drives the first hook and the second hook to move, so that the first hook and the second hook expand outward along the arc-shaped sliding groove, causing the hook to hook the product tightly, achieving the effect of fixing the processing object accurately. Moreover, this hook mechanism is small in size, reducing the weight of the clamp, thereby reducing the manufacturing cost of the clamp. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram showing the structural fit between the zipper head and the clamp assembly of this utility model; Figure 4 This is a schematic diagram of the overall exploded structure of this utility model.

[0013] In the figure: 1. Drive assembly; 11. Cylinder; 12. Pull head; 2. Fixing assembly; 21. Fixing block; 22. Fixing vertical plate; 3. Clamp assembly; 31. First shaft pin; 32. First pull hook; 33. Second pull hook; 34. Second shaft pin. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1 to 4As shown, this utility model provides a hook mechanism, including a drive assembly 1, a fixing assembly 2 fixedly installed on the upper end of the drive assembly 1, a clamp assembly 3 provided on the upper end of the drive assembly 1, the clamp assembly 3 including a first shaft pin 31, a first hook 32 and a second hook 33 provided on the outer wall of the first shaft pin 31, a second shaft pin 34 movably connected to the upper ends of the first hook 32 and the second hook 33, the drive assembly 1 including a cylinder 11, a pull head 12 fixedly installed on the end of the cylinder 11, a first shaft pin 31 provided on the upper end of the pull head 12, the fixing assembly 2 including a fixing block 21, a fixing vertical plate 22 fixedly installed on the top surface of the fixing block 21, and the fixing block 21 fixedly connected to the cylinder 11 by bolts.

[0016] The above solution involves the following steps: The cylinder 11 is activated by the cooperation of the drive assembly 1 and the clamp assembly 3. The cylinder 11 extends, causing the pull head 12 to move. The pull head 12 then moves the first shaft pin 31, which in turn moves the first hook 32 and the second hook 33. This causes the first hook 32 and the second hook 33 to extend outward along the arc-shaped groove, thus securing the hooks to the product. The fixing block 21 is fixedly connected to the cylinder 11 with bolts, thereby fixing the fixing vertical plate 22 and the clamp assembly 3. This makes the clamp assembly 3 more stable when fixing the workpiece, achieving precise fixing. Furthermore, the hook mechanism is small in size, reducing the weight of the clamp and thus lowering the manufacturing cost of the clamp.

[0017] like Figure 2 , Figure 3 As shown, the first hook 32 and the second hook 33 are the same in shape and size. The surfaces of the first hook 32 and the second hook 33 are provided with through grooves, and the through grooves are arc-shaped. The second shaft pin 34 is movably connected to the first hook 32 and the second hook 33, and the second shaft pin 34 is movably connected to the fixed vertical plate 22.

[0018] The above solution employs the following design: The first hook 32 and the second hook 33 are identical in shape and size. This symmetrical design ensures uniform clamping force on the workpiece, preventing deformation or displacement during clamping, thus guaranteeing machining accuracy and stability. Simultaneously, the symmetrical structure helps to better distribute the load, suppressing unstable factors such as vibration during machining, improving overall equipment stability, and reducing machining errors. The arc-shaped grooves in the first hook 32 and the second hook 33 limit their movement during adjustment, making them more stable. The arc-shaped groove design also allows for a wider adjustment range for the fixture, accommodating workpieces of different sizes or shapes and providing a more flexible clamping range. This is especially beneficial in situations requiring rapid fixture adjustments to accommodate different workpieces, offering greater convenience.

[0019] like Figure 3 , Figure 4 As shown, the first hook 32 and the second hook 33 are made of stainless steel. Holes are provided at the lower ends of the first hook 32 and the second hook 33. The first pin 31 is connected to the first hook 32 and the second hook 33 through the holes.

[0020] The above solution is adopted: by limiting the material of the first hook 32 and the second hook 33, stainless steel is free of harmful substances, has good chemical stability, reduces the risk of harmful substance pollution caused by metal corrosion, has a smooth and hard surface, is not easy to get dirty during cleaning, is very easy to clean, has high mechanical strength and durability, and has a long service life. By opening holes at the lower ends of the first hook 32 and the second hook 33, the first shaft pin 31 can pass through and connect the two. When the piston rod of the cylinder 11 extends and pushes the pull head 12, the pull head 12 drives the first shaft pin 31 to move. The first shaft pin 31 limits and controls the first hook 32 and the second hook 33 through the hole, and finally drives them to reliably fix the workpiece and put it in the correct position.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hook mechanism, comprising a drive assembly (1), characterized in that: A fixing component (2) is fixedly installed on the upper end of the drive component (1), and a clamping component (3) is provided on the upper end of the drive component (1). The clamp assembly (3) includes a first pin (31), and the outer wall of the first pin (31) is provided with a first hook (32) and a second hook (33). The upper ends of the first hook (32) and the second hook (33) are movably connected to the second pin (34).

2. The hook mechanism according to claim 1, characterized in that: The drive assembly (1) includes a cylinder (11), and a pull head (12) is fixedly installed at the end of the cylinder (11). A first shaft pin (31) is provided at the upper end of the pull head (12).

3. The hook mechanism according to claim 1, characterized in that: The fixing component (2) includes a fixing block (21), on the top surface of which a fixing vertical plate (22) is fixedly installed, and the fixing block (21) is fixedly connected to the cylinder (11) by bolts.

4. The hook mechanism according to claim 1, characterized in that: The first hook (32) and the second hook (33) are the same in shape and size. The surfaces of the first hook (32) and the second hook (33) are provided with through grooves, and the through grooves are arc-shaped.

5. The hook mechanism according to claim 1, characterized in that: The second pin (34) is movably connected to the first hook (32) and the second hook (33), and the second pin (34) is movably connected to the fixed vertical plate (22).

6. The hook mechanism according to claim 1, characterized in that: The first hook (32) and the second hook (33) are made of stainless steel. The lower ends of the first hook (32) and the second hook (33) are provided with holes. The first pin (31) is connected to the first hook (32) and the second hook (33) through the holes.

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