A gripping robotic arm

Abstract

This utility model belongs to the field of robotic arm technology and provides a grasping robotic arm. The grasping robotic arm includes a fixed base, a slide rod inside the fixed base, and two sets of left and right slide blocks on the slide rod. Each set of slide blocks has a vacuum nozzle facing downwards at its front end. The fixed base contains an adjustment component for adjusting the spacing between adjacent slide blocks. The adjustment component includes an adjustment wheel rotatably mounted inside the fixed base and located above the slide rod. The adjustment wheel has two sets of adjustment grooves. A limiting screw is provided in the middle of the slide block, and the nut of the limiting screw is embedded in the corresponding adjustment groove. The fixed base also contains a rotating component for driving the adjustment wheel to rotate. This device can easily adjust the spacing between adjacent slide blocks through the adjustment component, adapting to the grasping of objects of different sizes, greatly improving the versatility and flexibility of the robotic arm. Furthermore, the design of the adjustment grooves allows for fine adjustment of the slide block positions, meeting the requirements of high-precision production.

Description

Technical Field

[0001] This utility model belongs to the field of robotic arm technology, and in particular relates to a grasping robotic arm. Background Technology

[0002] In the hardware processing and assembly industry, gripping robots are the core equipment for realizing the automated handling, sorting and assembly of hardware parts, involving the production process of various types of hardware parts such as screws, nuts, stamping parts and connectors.

[0003] Existing hardware gripping robots have many limitations: one type uses grippers with fixed clamping spacing, which can only be used for hardware of a single specification. When switching between multiple product categories, frequent machine stops are required to replace the grippers. The other type supports spacing adjustment, but it mostly relies on manual knobs or simple cylinders for driving, resulting in low adjustment accuracy and a relatively complicated adjustment process.

[0004] Meanwhile, irregularly shaped structures commonly found in hardware, such as hooks with bends and shafts with steps, require extremely high precision in terms of gripping angle and force balance. Existing robotic gripping components are mostly in a fixed posture, unable to flexibly adjust the gripping position according to the hardware structure, easily leading to surface damage and unstable gripping causing detachment. Utility Model Content

[0005] In view of the above problems, the purpose of this utility model is to provide a gripping robot that aims to solve the problems of poor adaptability, low adjustment accuracy and cumbersome operation of existing gripping robots.

[0006] The present invention adopts the following technical solution:

[0007] The gripping robot includes a fixed base, a slide rod inside the fixed base, and two sets of left and right slides on the slide rod. Each set of slides has a vacuum nozzle facing downwards at its front end. The fixed base also includes an adjustment assembly for adjusting the spacing between adjacent slides. The adjustment assembly includes an adjustment wheel rotatably mounted inside the fixed base and located above the slide rod. The adjustment wheel has two sets of adjustment grooves. A limiting screw is provided in the middle of the slide, and the nut of the limiting screw is embedded in the corresponding adjustment groove. The fixed base also includes a rotating assembly for driving the adjustment wheel to rotate.

[0008] Furthermore, the two sets of adjustment grooves are symmetrically distributed, and the inclination angle of each set of adjustment grooves increases from the radial outer side of the adjustment wheel to the radial inner side of the adjustment wheel.

[0009] Furthermore, the end of the adjusting wheel extends out of the fixed seat and is provided with a driven wheel. The rotating assembly includes a driving wheel installed on the side wall of the fixed seat. A matching belt is fitted between the driving wheel and the driven wheel. An adjusting motor is provided inside the fixed seat, and the drive shaft of the adjusting motor is connected to the driving wheel.

[0010] Furthermore, a guide frame is provided in the slide block located on the right side, and a bracket is integrally formed at the rear end of the slide block. The vacuum nozzle is provided at the front end of the guide frame, and a sliding cylinder is provided on the bracket. The drive shaft of the sliding cylinder is connected to the tail end of the guide frame.

[0011] The beneficial effects of this utility model are:

[0012] 1. This device can easily adjust the interval between adjacent slides through the adjustment components, which can adapt to the gripping of objects of different sizes, greatly improving the versatility and flexibility of the robot.

[0013] 2. The design of the adjustment groove ensures a precise correspondence between the sliding distance and the rotation angle of the adjustment wheel, enabling fine adjustment of the sliding position and meeting the requirements of high-precision production.

[0014] 3. The automatic rotation of the adjusting wheel is achieved through an adjustable motor and belt drive mechanism, thereby automatically adjusting the slide interval. This facilitates operation and improves production efficiency. Simultaneously, the sliding cylinder allows for further adjustment of the vacuum nozzle's forward and backward position, enhancing the robot's adaptability and gripping accuracy. Attached Figure Description

[0015] Figure 1 This utility model provides an overall grasping robotic arm. Figure 1 .

[0016] Figure 2 This utility model provides an overall grasping robotic arm. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the rotating component provided by this utility model. Detailed Implementation

[0018] To make the purpose, technical solution, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0020] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0021] Combination Figure 1-3As shown, the gripping robot includes a fixed base 1, a slide rod 2 inside the fixed base 1, and two sets of left and right slide blocks 3 on the slide rod 2. Each set of slide blocks 3 has a vacuum nozzle 4 facing downward at its front end. The fixed base 1 is equipped with an adjustment assembly for adjusting the interval between adjacent slide blocks. The adjustment assembly includes an adjustment wheel 5 rotatably mounted inside the fixed base 1 and located above the slide rod 2. The adjustment wheel 5 has two sets of adjustment grooves 6. A limiting screw 7 is provided in the middle of the slide block 3. The nut of the limiting screw 7 is embedded in the corresponding adjustment groove 6. The fixed base 1 is also equipped with a rotating assembly for driving the adjustment wheel 5 to rotate.

[0022] In the hardware processing and assembly industry, this gripping robot can be used to automate the handling, sorting, and assembly of hardware parts. In this embodiment, the fixed base is installed at the transfer end of the transfer mechanism. Since the transfer mechanism is not the focus of this device, it will not be described in detail here.

[0023] In this structure, there are two slide rods, and two sets of left and right sliding blocks are slidably mounted on the two slide rods. In actual operation, when it is necessary to uniformly adjust the distance between the left and right sets of vacuum nozzles, the rotating component first drives the adjusting wheel to rotate. When the adjusting wheel rotates, the adjusting groove pushes the nut of the limiting screw to move along the length of the slide rod. Since the two sets of adjusting grooves are symmetrically distributed, and the inclination angle of each set of adjusting grooves increases from the radial outer side to the radial inner side of the adjusting wheel, when the adjusting wheel rotates, the left and right sets of sliding blocks move in opposite directions or towards each other along the slide rod, and the interval between the movement of all sliding blocks is equal. Therefore, the gap between adjacent vacuum nozzles always remains the same, achieving precise adjustment of the distance.

[0024] As a preferred structure, combined with Figure 1-2 The slide 3 located on the right side is provided with a guide frame 8, and the rear end of the slide 3 is extended to form a bracket 9. The front end of the guide frame 8 is provided with the vacuum nozzle 4, and the bracket 9 is provided with a sliding cylinder 10. The drive shaft of the sliding cylinder 10 is connected to the tail end of the guide frame 8.

[0025] In practice, when it is necessary to fine-tune the position of the right vacuum nozzle when grasping irregularly shaped hardware parts, the sliding cylinder starts to work. The sliding cylinder drives the guide to slide back and forth in the corresponding slide, which drives the vacuum nozzle in the same position to move back and forth, thereby realizing the fine-tuning of the position of the right vacuum nozzle, so as to adapt to irregularly shaped hardware parts of different shapes and make it more accurately aligned with the grasped object.

[0026] In this structure, combined Figure 3The end of the adjusting wheel 5 extends out of the fixed seat 1 and is provided with a driven wheel 11. The rotating assembly includes a driving wheel 12 installed on the side wall of the fixed seat 1. A matching belt 13 is fitted between the driving wheel 12 and the driven wheel 11. An adjusting motor 14 is provided inside the fixed seat, and the drive shaft of the adjusting motor 14 is connected to the driving wheel 12.

[0027] When the adjusting wheel is driven to rotate by the rotating component, the adjusting motor starts to work. The adjusting motor drives the drive wheel to rotate, and the adjusting wheel rotates under the linkage of the belt. When the adjusting wheel rotates, the adjusting groove pushes the nut of the limit screw to move along the slide rod direction, so as to realize the equal interval adjustment of each slide.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gripping robotic arm, characterized in that: The gripping robot includes a fixed base, a slide rod inside the fixed base, and two sets of left and right slides on the slide rod. Each set of slides has a vacuum nozzle facing downwards at its front end. The fixed base also includes an adjustment assembly for adjusting the spacing between adjacent slides. The adjustment assembly includes an adjustment wheel rotatably mounted inside the fixed base and located above the slide rod. The adjustment wheel has two sets of adjustment grooves. A limiting screw is provided in the middle of the slide, and the nut of the limiting screw is embedded in the corresponding adjustment groove. The fixed base also includes a rotating assembly for driving the adjustment wheel to rotate.

2. The gripping robot as described in claim 1, characterized in that: The two sets of adjustment grooves are symmetrically distributed, and the inclination angle of each set of adjustment grooves increases from the radial outer side of the adjustment wheel to the radial inner side of the adjustment wheel.

3. The gripping robot as described in claim 2, characterized in that: The end of the adjusting wheel extends out of the fixed seat and is provided with a driven wheel. The rotating assembly includes a driving wheel installed on the side wall of the fixed seat. A matching belt is fitted between the driving wheel and the driven wheel. An adjusting motor is provided inside the fixed seat, and the drive shaft of the adjusting motor is connected to the driving wheel.

4. The gripping robot as described in claim 3, characterized in that: The slide on the right side is equipped with a guide frame, and the rear end of the slide is integrally formed with a bracket. The front end of the guide frame is equipped with the vacuum nozzle, and the bracket is equipped with a sliding cylinder. The drive shaft of the sliding cylinder is connected to the tail end of the guide frame.

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