Convenient mechanical clamping jaw

Abstract

The utility model relates to a convenient mechanical clamping jaw which is suitable for picking up crushed materials difficult to pick up manually in the machining process. The clamping jaw comprises a center rod, a holding and pressing part, a spring, a limiting ring, a cylindrical rack, a gear clamping jaw, a sleeve rod and the like, a strip-shaped groove is formed in the sleeve rod, and the holding and pressing part can slide in the groove. The clamping jaw part is arc-shaped, the holding part is provided with a barb and a rubber layer, and anti-skid teeth are arranged on the rubber layer. According to the technical scheme, through ingenious design, the operation efficiency and safety are improved, the use efficiency of the internal space of the clamping jaw is optimized, the clamping jaw conforms to human engineering mechanics, and the functionality and operation convenience of the clamping jaw are enhanced.

Description

Technical Field

[0001] This application relates to the field of fixtures, and specifically to a convenient mechanical jaw. Background Art

[0002] During the machining process, operators often face the problem of scraps that cannot be picked up. Traditional methods usually rely on manual operation or simple mechanical tools for cleaning, but this method has problems such as low efficiency, inconvenient operation, and poor safety. In addition, traditional cleaning tools often cannot effectively pick up scraps with irregular shapes or small sizes, making the cleaning work complicated and time-consuming. The advantage of this patent is to improve the operation convenience, reduce the operation difficulty, improve the cleaning efficiency, and also ensure the safety of the operator. Content of the Utility Model

[0003] The purpose of this application is to provide a convenient mechanical jaw for solving the problem of scraps that cannot be picked up by operators during the machining process. To achieve the above purpose, this application provides the following technical solutions: A convenient mechanical jaw, comprising:

[0004] A central rod, the central rod is a cylindrical rod body, and one end is provided with a hinge block;

[0005] A grip portion, the first end of the grip portion is hinged to the hinge block;

[0006] A spring, the spring is sleeved on the central rod;

[0007] A limit ring, the limit ring is fixedly arranged on the central rod for restricting the movement of the spring towards the hinge block;

[0008] A cylindrical rack, the cylindrical rack is arranged at the other end of the central rod, and one end of the cylindrical rack abuts against the spring to restrict the movement of the spring towards the cylindrical rack;

[0009] A gear jaw, the gear jaw has a gear portion and a jaw portion, the gear portion meshes with the cylindrical rack, and the jaw portion is arc-shaped;

[0010] A sleeve rod, the sleeve rod is coaxially arranged with the central rod and sleeved on the central rod. A plurality of hinge plates are evenly arranged on the periphery of one end of the sleeve rod, and the plurality of hinge plates are respectively hinged to the plurality of gear jaws.

[0011] Preferably, in this technical solution, the sleeve rod is provided with a strip-shaped groove, the strip-shaped groove is consistent with the extension direction of the sleeve rod, the strip-shaped groove can accommodate the grip portion to pass through, and the first end of the grip portion can drive the grip portion to slide in the strip-shaped groove.

[0012] Preferably, in this technical solution, the pressing part is arc-shaped, and the convex part of the arc faces the same direction as the force pressing direction.

[0013] Preferably, this technical solution further includes a handle. The handle is fixedly connected to the sleeve rod at the strip-shaped groove. The handle is a hollow shell with a notch on one side. The notch can accommodate the pressing part to pass through. The second end of the pressing part is hinged to the handle. The pressing part has a boss that protrudes from the notch. There is enough space in the handle for the first end of the pressing part to retreat.

[0014] Preferably, 3 hinge plates are provided in a matching manner with the gear claw.

[0015] Preferably, this technical solution further includes a holding part. The holding part is arranged at the end of the claw part, and the cross-sectional area of the holding part is larger than the cross-sectional area of the end of the claw part.

[0016] Preferably, barbs are provided at both ends of the holding part.

[0017] Preferably, this technical solution further includes a rubber layer. The rubber layer is sleeved on the holding part.

[0018] Preferably, anti-slip teeth are provided on the rubber layer.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] This application solves the problem of small pieces of material that cannot be picked up by the operator during the machining process, greatly improving the operation efficiency and safety. Through the ingenious design of structural components such as the central rod, grip portion, spring, limit ring, cylindrical rack, gear claw, and sleeve rod, the flexible control of the claw and the precise grasping of small pieces of material are realized, avoiding safety accidents and the reduction of production efficiency caused by difficult grasping in manual operation. The sleeve rod in this technical solution is provided with a strip-shaped groove, enabling the grip portion to slide within the strip-shaped groove. This design optimizes the utilization efficiency of the internal space of the claw and also makes the movement of the grip portion smoother. Further, the design where the convex portion of the grip portion faces the same direction as the force pressing direction conforms to ergonomics, ensuring reliable fixation of the force during the grasping process and avoiding the slipping or damage of the material caused by unstable clamping. In addition, the handle in this technical solution adopts a hollow shell design and is provided with a notch, which not only provides sufficient retraction space for the grip portion but also makes the overall structure more compact, facilitating the operator's grip and reducing the operator's fatigue. This technical solution also includes the matching setting of the hinge plate and the gear claw, as well as the setting of the holding portion, which further enhances the functionality of the claw and the convenience of operation. In particular, the barb design of the holding portion and the application of the rubber layer increase the holding stability of the claw. At the same time, the anti-slip tooth design on the rubber layer improves the adaptability of the claw under different material and surface conditions, effectively preventing the occurrence of slipping phenomena and increasing the applicable range of the claw. Description of the Drawings

[0021] Figure 1 Schematic diagram of the internal structure of a convenient mechanical claw proposed in an embodiment of this application;

[0022] Figure 2 Schematic diagram of an embodiment of a convenient mechanical claw proposed in an embodiment of this application;

[0023] Figure 3 Schematic diagram of another embodiment of a convenient mechanical claw proposed in an embodiment of this application;

[0024] In the figure: 1, central rod; 2, hinge block; 3, grip portion; 4, first end; 5, second end; 6, spring; 7, limit ring; 8, cylindrical rack; 9, gear claw; 10, gear portion; 11, claw portion; 12, sleeve rod; 13, hinge plate; 14, strip-shaped groove; 15, handle; 16, notch; 17, boss; 18, holding portion; 19, barb; 20, rubber layer; 21, anti-slip teeth. Detailed Description of the Invention

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0026] It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0027] In addition, it should be understood that for the convenience of description, the sizes of the various components shown in the accompanying drawings are not drawn according to the actual proportional relationship. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0028] It should be noted that similar reference numerals and letters indicate similar items in the following accompanying drawings. Therefore, once an item is defined or described in one accompanying drawing, it will not be necessary to further specifically discuss and describe it in the description of the subsequent accompanying drawings.

[0029] To solve the technical problems in the background art, as Figures 1-3 shown, the present application provides a technical solution: a convenient mechanical gripper, the characteristics of which are as follows:

[0030] The central rod 1 is a cylindrical rod body, and generally a solid rod body to improve strength. One end of it is provided with a hinge block 2, and the first end 4 of a holding and pressing part 3 is hinged on the hinge block 2. The holding and pressing part 3 is a rod body, which is convenient for the operator to apply force to pull the central rod 1. A spring 6 is sleeved on the central rod 1, and the two ends of the spring 6 respectively abut against a limit ring 7 and a cylindrical rack 8. The limit ring 7 is an annular block fixedly arranged on the central rod 1, and the limit ring 7 is used to limit the movement of the spring 6 in the direction of the hinge block 2, and the cylindrical rack 8 limits the movement of the spring 6 in the other direction. The cylindrical rack 8 is arranged at the other end of the central rod 1 without the hinge block 2, is coaxial with the central rod 1, and has a plurality of circular racks. The gear gripper 9 has a gear part 10 and a gripper part 11, the gear part 10 meshes with the cylindrical rack 8, and the gripper part 11 is arc-shaped. The sleeve rod 12 is arranged coaxially with the central rod 1 and is sleeved on the central rod 1. A plurality of hinge plates 13 are uniformly arranged on the periphery of one end of the sleeve rod 12, and the plurality of hinge plates 13 are respectively hinged with the plurality of gear grippers 9.

[0031] In some embodiments, the length of the central rod 1 is longer than that of the sleeve rod 12. When the central rod 1 is pulled, the central rod 1 expands and contracts relative to the sleeve rod 12, and the cylindrical rack 8 also expands and contracts relative to the sleeve rod 12. Since the gear part 10 meshes with the cylindrical rack 8, under the meshing action of the gear part 10, the gear claw 9 rotates around its hinge axis with the hinge plate 13. At this time, the plurality of claw parts 11 together form a grasping part, and the claw parts 11 will generate an opening and closing action, thereby realizing the grasping and releasing of an object and forming the grasping of the object.

[0032] Furthermore, as Figure 2 shown, the sleeve rod 12 is provided with a strip-shaped groove 14, and the strip-shaped groove 14 is consistent with the extending direction of the sleeve rod 12, that is, the strip-shaped groove 14 extends along the axial direction of the sleeve rod 12. The cross-sectional shape of the strip-shaped groove 14 is rectangular, and its width is sufficient to accommodate the pressing part 3 to pass through, so that the first end 4 of the pressing part 3 can drive the pressing part to slide in the strip-shaped groove 14, facilitating the user to press the pressing part 3. The sleeve rod 12 is made of a hard material such as plastic or metal, and has good strength and toughness. The pressing part 3 is made of plastic and has good wear resistance and holding feeling.

[0033] It should be noted that in some embodiments, the overall shape of the pressing part 3 is a section of arc, and the radius R of the arc is designed according to the size of the user's palm to ensure comfort and stability during holding. For example, the radius R can be set to 5-10 cm, and the specific value can be adjusted according to actual needs. The convex part of the arc faces the same direction as the force pressing direction, that is, when the user applies a pressing force, the convex part of the pressing part 3 can form a corresponding relationship with the pressing direction of the user's palm, thereby improving the pressing efficiency and comfort. Its arc design enables it to better fit the user's palm when being pressed, reducing sliding and improving the holding stability. A non-slip layer can be attached to the pressing part 3, such as a material with certain elasticity and wear resistance, such as silicone, rubber, etc., to ensure good touch and holding feeling during use.

[0034] Furthermore, as Figure 3As shown, the grip 15 and the sleeve rod 12 are fixedly connected at the strip-shaped groove 14. Specifically, the grip 15 is designed with a hollow shell structure. The internal space of the grip 15 communicates with the strip-shaped groove 14 to form a cavity for accommodating the protruding grip pressing part 3. There is a notch 16 on one side of the grip 15. The size and shape of the notch 16 are designed just right so that the grip pressing part 3 can pass through easily. The second end 5 of the grip pressing part 3 is located inside the grip 15 and is connected to the grip 15 by a hinge connection. This connection method not only ensures the mobility of the grip pressing part 3 but also ensures the stability of the connection. The first end 4 of the grip pressing part 3 can move around the hinge axis of the second end 5. There is a boss 17 on the grip pressing part 3. The design of the boss 17 enables it to protrude outside the notch 16, which not only increases the operation convenience of the grip pressing part 3 but also improves the overall stability of the grip 15. Inside the grip 15, there is enough space so that the first end 4 of the grip pressing part 3 has enough yielding space during operation. This design not only ensures the smooth movement trajectory of the grip pressing part 3 but also avoids damage to the grip 15 during operation.

[0035] It should be noted that, as Figure 3 shown, there are 3 articulated plates 13 provided in a matching manner with the gear jaw 9. Specifically, one articulated plate 13 corresponds to and is matched with one gear jaw 9, and the 3 pairs together form a clamping. Compared with 2 clamping mechanisms, the 3 clamping mechanisms have multi-directional clamping; compared with a larger number, they are more material-saving, easier to cooperate, and have a lower damage rate.

[0036] It should be pointed out that the end of the jaw part 11 is connected with a holding part 18, and the cross-sectional area of the holding part 18 is larger than the cross-sectional area of the end of the jaw part 11. Specifically, the cross-sectional area of the holding part 18 is designed to be 2 - 4 times that of the cross-sectional area of the end of the jaw part 11. This design can provide greater stability when the holding part 18 grabs an object and prevent the object from slipping.

[0037] Furthermore, a structure with barbs 19 is provided at both ends of the holding part 18. The barbs 19 are hook-shaped. The barbs 19 are made of the same material as the holding part 18 and have high strength and toughness. The size of the barbs 19 is appropriate, which can firmly hook the target object without damaging the target object. The operation process of the barbs 19: when the user opens the jaw part 11, the barbs 19 on the holding part 18 face outwards naturally, which is convenient for hooking a target object that is far away and not easy to clamp. When the target object is clamped, the barbs 19 at the other end will press the target object to facilitate firmly clamping the target object.

[0038] In some embodiments, the holding portion 18 is a key component in the utility model, and its main function is to contact the target object and perform clamping. The shape of the holding portion 18 can be cylindrical, square or other shapes to meet the requirements of different target objects. In this embodiment, the holding portion 18 is square. The rubber layer 20 is sleeved outside the holding portion 18. The main function of the rubber layer 20 is to improve the friction and wear resistance of the holding portion 18, thereby increasing the service life of the holding portion 18. The material of the rubber layer 20 is natural rubber or synthetic rubber. The rubber layer 20 and the holding portion 18 are bonded with an adhesive to ensure the tight combination of the rubber layer 20 and the holding portion 18.

[0039] Furthermore, anti-slip teeth 21 are provided on the upper surface of the rubber layer 20, and the shape of the anti-slip teeth 21 can be triangular or trapezoidal. The anti-slip teeth 21 and the rubber layer 20 are integrally formed.

[0040] When the rubber layer 20 contacts the target object, anti-slip teeth 21 of different shapes can effectively increase the contact area and improve the friction force, thereby achieving an anti-slip effect.

[0041] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A convenient mechanical gripper, characterized in that: include: A central rod (1), wherein the central rod (1) is a cylindrical rod body, and a hinge block (2) is provided at one end; A gripping and pressing portion (3), wherein a first end (4) of the gripping and pressing portion (3) is hingedly connected to the hinge block (2); A spring (6), wherein the spring (6) is sleeved on the central rod (1); a limiting ring (7), the limiting ring (7) being fixedly arranged on the central rod (1) and being used for limiting the movement of the spring (6) toward the hinge block (2); A cylindrical rack (8), wherein the cylindrical rack (8) is arranged at the other end of the center rod (1), and one end of the cylindrical rack (8) abuts against the spring (6) to limit the movement of the spring (6) in the direction of the cylindrical rack (8); A gear clamp (9), the gear clamp (9) comprising a gear portion (10) and a clamp portion (11), the gear portion (10) meshing with the cylindrical rack (8), and the clamp portion (11) being arc-shaped; A sleeve rod (12), the sleeve rod (12) is coaxially arranged with the center rod (1) and sleeved on the center rod (1), and a plurality of hinge plates (13) are evenly arranged on the periphery of one end of the sleeve rod (12), and the plurality of hinge plates (13) are respectively hinged to the plurality of gear clamps (9).

2. A convenient mechanical gripper according to claim 1, characterized in that: The sleeve rod (12) is provided with a strip groove (14), the strip groove (14) and the sleeve rod (12) extending in the same direction, the strip groove (14) can accommodate the gripping portion (3) to pass through, and the first end (4) of the gripping portion (3) can drive the gripping portion (3) to slide in the strip groove (14).

3. A convenient mechanical gripper according to claim 2, characterized in that: The gripping and pressing portion (3) is arc-shaped, and the outer convex portion of the arc is oriented in the same direction as the pressing force direction.

4. A convenient mechanical gripper according to claim 2, characterized in that: The invention also comprises a grip (15), wherein the grip (15) is fixedly connected to the sleeve rod (12) at the strip groove (14), the grip (15) is a hollow shell and is provided with a notch (16) on one side, the notch (16) can accommodate the gripping portion (3) to pass through, the second end (5) of the gripping portion (3) is hinged to the grip (15), the gripping portion (3) has a boss (17), the boss (17) protrudes from the notch (16), and a space sufficient for the first end (4) of the gripping portion (3) to retreat is provided in the grip (15).

5. A convenient mechanical gripper according to claim 1, characterized in that: The hinged plates (13) are matched with the gear clamping claws (9) in three pieces.

6. A convenient mechanical gripper according to any one of claims 1 to 5, characterized in that: It also comprises a gripping portion (18), wherein the gripping portion (18) is arranged at the end of the clamping jaw portion (11), and the cross-sectional area of ​​the gripping portion (18) is larger than the cross-sectional area of ​​the end of the clamping jaw portion (11).

7. A convenient mechanical gripper according to claim 6, characterized in that: The two ends of the gripping portion (18) are provided with barbs (19).

8. A convenient mechanical gripper according to claim 7, characterized in that: It also comprises a rubber layer (20), wherein the rubber layer (20) is sleeved on the gripping portion (18).

9. A convenient mechanical gripper according to claim 8, characterized in that: Anti-slip teeth (21) are provided on the rubber layer (20).

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