An adjustable mechanical gripper

Abstract

This utility model discloses an adjustable mechanical gripper, belonging to the field of automated robotic gripper technology. The adjustable mechanical gripper of this utility model includes a female gripper and a female gripper. The female gripper has an L-shaped vertical cross-section, and its bottom horizontal plate is mounted to the robotic arm through its mounting holes. The female gripper is detachably connected to the upper vertical mounting surface of the female gripper. In practical use, the two symmetrical mechanical grippers are usually used together. When adapting to different gripping surfaces or gripped items, only the female gripper needs to be switched or replaced, without replacing the entire gripper. This improves versatility, increases production efficiency, and reduces production costs.

Description

Technical Field

[0001] This utility model relates to the field of automated robotic gripper technology, and more specifically to an adjustable mechanical gripper. Background Technology

[0002] like Figure 7 As shown, the grippers mounted on existing traditional robotic arms are mostly one-piece grippers 10 with a single structure. They typically have only one back gripping surface with an anti-slip groove 101, resulting in poor versatility. When forward gripping is required, the entire gripper needs to be replaced, leading to frequent replacements or adjustments of the robotic arm's gripping components. Moreover, during the machining of the anti-slip groove 101, burrs are difficult to control, affecting the accuracy of the gripping surface. Summary of the Invention

[0003] 1. The technical problem that the invention aims to solve

[0004] To address the aforementioned problems in the gripping operation of existing robotic arms, this utility model provides an adjustable mechanical gripper. Through the separate design of the female gripper and the male gripper, the male gripper is detachably connected to the upper mounting surface of the female gripper. When adapting to different gripping surfaces or gripping items, only the male gripper needs to be changed or replaced, thereby improving versatility.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] An adjustable mechanical gripper includes a female gripper and a female gripper. The female gripper has an L-shaped vertical cross-section, and its bottom horizontal plate is mounted on a robotic arm through mounting holes. The female gripper is detachably connected to the upper vertical mounting surface of the female gripper. In practical use, the two symmetrical mechanical grippers are usually used together. When adapting to different gripping surfaces or gripped items, only the female gripper needs to be switched or replaced, without replacing the entire gripper. This improves versatility, increases production efficiency, and reduces production costs.

[0008] The further adjustable mechanical gripper has a female gripper with a vertical mounting surface consisting of a front mounting surface and a back mounting surface on its two sides. The female grippers can be mounted on the front mounting surface and the back mounting surface as needed, or the two female grippers can be mounted on the front mounting surface and the back mounting surface respectively, to adapt to different gripping directions.

[0009] The further adjustable mechanical gripper has a transverse K-shaped cross-section for the sub-gripper, which works in conjunction with another symmetrically designed sub-gripper to form an arm-like gripping mechanism, improving the stability of gripping the object. Moreover, compared to the existing technology with anti-slip grooves on the gripping surface, the contact area between the sub-gripper and the object is much smaller, usually about half the size. The anti-slip groove design is unnecessary, thus eliminating the problem of burrs affecting the accuracy of the gripping surface and improving the gripping accuracy.

[0010] The further adjustable mechanical gripper features a vertical waist-shaped hole on the mounting surface of the female gripper. The female gripper mates with this hole through its own fixing hole, allowing for vertical position adjustment and further enhancing its versatility. A horizontal waist-shaped hole is located at the bottom of the female gripper, enabling adjustment of its assembly position within the robot arm.

[0011] Further adjustable mechanical grippers have serrated grooves on the bottom surface of the female gripper to improve its stability when assembled with the robot arm.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0014] (1) The adjustable mechanical gripper of this utility model has a split design to reduce the difficulty of single-piece processing, independent tolerance control, and overall assembly accuracy improved by ≥30%;

[0015] (2) The adjustable mechanical gripper of this utility model has a quick-change sub-gripper to adapt to different workpieces, and the maintenance efficiency is improved by 50%.

[0016] (3) Compared with existing grippers, the adjustable mechanical gripper of this utility model has a contact surface between the gripper and the object that is about half the size. It does not require the design of anti-slip grooves, thus eliminating the problem of burrs affecting the gripping surface accuracy and improving the gripping accuracy. Attached Figure Description

[0017] Figure 1 A isometric view of an adjustable mechanical gripper according to a specific embodiment;

[0018] Figure 2 This is a side view of the female claw in a specific embodiment;

[0019] Figure 3 for Figure 2 Top view;

[0020] Figure 4 for Figure 2 Rear view;

[0021] Figure 5 This is a top view of the sub-claw in a specific embodiment;

[0022] Figure 6 This is a cross-sectional view of the sub-claw in a specific embodiment;

[0023] Figure 7 Axonometric drawing of an integrated gripper from the prior art.

[0024] In the diagram: 1-Female claw; 11-Front mounting surface; 12-Back mounting surface; 13-Horizontal waist-shaped hole; 14-Serrated groove; 15-Vertical waist-shaped hole; 2-Female claw; 21-Fixing hole; 22-Clamping surface;

[0025] 10 - Integrated gripper; 101 - Anti-slip groove. Detailed Implementation

[0026] To further understand the contents of this utility model, the invention will be described in detail with reference to the accompanying drawings.

[0027] Example 1

[0028] The adjustable mechanical gripper in this embodiment, such as Figure 1 , 2 As shown, it includes a female claw 1 and a female claw 2, made of 45# steel, which has been quenched and tempered to a hardness of HRC28-32. The female claw 1 has an L-shaped vertical cross section, and the bottom horizontal plate is mounted on the robot arm through its mounting holes. The female claw 2 is detachably connected to the vertical mounting surface on the upper part of the female claw 1. The detachment and connection can be achieved by bolt pairs.

[0029] In this embodiment, the adjustable mechanical gripper is typically used in combination with two symmetrical mechanical grippers. When adapting to different gripping surfaces 22 or gripping items, only the sub-gripper 2 needs to be changed or replaced, without replacing the entire gripper. This improves versatility, increases production efficiency, and reduces production costs.

[0030] Example 2

[0031] The adjustable mechanical gripper in this embodiment has the same basic configuration as in embodiment 1, with the following differences or improvements: Figure 2 , 3As shown in Figures 4, 5, and 6, the vertical mounting surfaces of the female claw 1 are the front mounting surface 11 and the back mounting surface 12 on both sides. The male claw 2 can be assembled onto the front mounting surface 11 and the back mounting surface 12 according to the clamping requirements, or the two male claws 2 can be assembled onto the front mounting surface 11 and the back mounting surface 12 respectively, adapting to different clamping directions. The cross-section of the male claw 2 is a transverse K-shape, which works in conjunction with another symmetrically designed male claw 2 to form an arm-like clamping surface 22 for close clamping, improving the stability of clamping the object. Moreover, compared with the clamping surface with anti-slip grooves in the existing technology, the contact surface between the male claw 2 and the object is much smaller, usually about half the size. During processing, the contact surface is quenched to HRC40-45 to improve its wear resistance. The design of anti-slip grooves is not required, thus eliminating the problem of burrs affecting the accuracy of the clamping surface and improving the clamping accuracy. The mounting surface of the female claw 1 has a vertical waist-shaped hole 15. The female claw 2 is assembled with the vertical waist-shaped hole 15 through a fixing hole 21. The vertical waist-shaped hole 15 consists of two sets of Φ4.5±0.04mm positioning holes. The fixing hole 21 consists of four symmetrical 4-M4 threaded holes. Within the length of the positioning holes of the vertical waist-shaped hole 15, the female claw 1 can be adjusted to any vertical position, further improving its versatility. The female claw 1 and the female claw 2 are connected by bolts, with a fitting clearance ≤0.05mm. The bottom of the female claw 1 has a horizontal waist-shaped hole 13, which can adjust its assembly position on the robot arm. The bottom surface of the female claw 1 has a serrated groove 14 to improve its stability when assembled with the robot arm.

[0032] The adjustable mechanical gripper in this embodiment features a split design that reduces the difficulty of machining individual parts, allows for independent tolerance control, and enables quick replacement of the sub-gripper 2 to adapt to different workpieces. Testing has shown that the overall assembly accuracy is improved by ≥30%, and maintenance efficiency is increased by 50%.

[0033] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An adjustable mechanical jaw, characterized in that, include: The female claw has an L-shaped vertical cross-section; The female claw is detached and connected to the upper mounting surface of the female claw; The mounting surfaces of the female claw are the front mounting surface and the back mounting surface on both sides; The cross-section of the sub-claw is transversely K-shaped; there are two sub-claws, which are respectively assembled on the front mounting surface and the back mounting surface of the female claw.

2. The adjustable mechanical jaw of claim 1, wherein: The mounting surface of the female claw has a vertical waist-shaped hole; the bottom of the female claw has a horizontal waist-shaped hole.

3. The adjustable mechanical jaw of claim 1, wherein: The bottom surface of the female claw has a serrated groove.

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