Manipulator convenient to replace for mechanical arm

Abstract

The utility model provides a convenient-to-replace manipulator for a mechanical arm, belongs to the technical field of mechanical arms, and aims to solve the problems that most manipulators are fixed at the tail end of the mechanical arm through bolts, but when the manipulators need to be replaced, a plurality of fasteners are usually required to be detached, the operation is tedious, and the working efficiency is influenced. A mechanical arm assembly is installed at the upper end of a fixed base. The mounting slot is formed in the inner side of the mechanical arm assembly; the manipulator mounting seat is mounted at the lower end of the mechanical arm assembly; the mounting insertion block is fixedly connected to the upper end face of the manipulator mounting seat, and the mounting insertion block is mounted on the inner side of the mounting insertion groove in an inserted manner; the mechanical clamping jaw is fixedly mounted on the lower end surface of the manipulator mounting seat; through the arrangement, the mechanical clamping jaw can be installed, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of robotic arm technology, and more specifically, it relates to a robotic arm with an easily replaceable robotic hand. Background Technology

[0002] A robotic arm is an automated device that can mimic the movements of a human arm. Through programming control and real-time feedback from sensors, a robotic arm can drive a robotic hand to precisely complete complex operations such as grasping, handling, and assembly. Its high flexibility and precision make it widely used in many fields such as industrial production, medical surgery, and logistics transportation, and it has become an important part of modern automation technology.

[0003] According to application number CN201920539990.4, a robotic arm relates to the field of automated machinery. The robotic arm includes a mounting cylinder, a connecting sleeve, a support frame, a first gripper, a second gripper, a push-pull rod, a hydraulic motor, and a hydraulic cylinder. One end of the mounting cylinder is rotatably connected to one end of the connecting sleeve. The hydraulic motor is located inside the mounting cylinder, and its shaft is coaxially connected to the connecting sleeve. The support frame is located on the end face of the other end of the connecting sleeve. The first and second grippers are rotatably connected to the support frame. Both the first and second grippers have rotating rods with insertion holes. The cylinder body of the hydraulic cylinder is coaxially arranged inside the connecting sleeve. The middle part of the push-pull rod is perpendicularly connected to the piston rod of the hydraulic cylinder. The two ends of the push-pull rod are located in the insertion holes of the rotating rods on the first and second grippers, respectively. The opening and closing of the first and second grippers are controlled by a hydraulic cylinder. The grippers have a cross structure and are equipped with guide rollers to ensure that the robotic arm can stably grasp workpieces.

[0004] Based on the above, most robotic arms are currently fixed to the end of the robotic arm with bolts. However, when it is necessary to replace the robotic arm, multiple fasteners usually need to be removed, which is cumbersome and affects work efficiency. In addition, when the robotic arm is not installed, its interface will be exposed to the outside for a long time, which can easily accumulate dust or foreign objects, affecting the installation accuracy of the robotic arm and the stability of the equipment operation. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a replaceable robotic arm for robotic arms. This solves the problem that most robotic arms are currently fixed to the end of the robotic arm with bolts. However, when the robotic arm needs to be replaced, multiple fasteners usually need to be disassembled, which is cumbersome and affects work efficiency. In addition, when the robotic arm is not equipped with the robotic arm, its interface will be exposed to the outside for a long time, which is prone to accumulating dust or foreign objects, affecting the installation accuracy of the robotic arm and the stability of equipment operation.

[0006] The purpose and function of this utility model, which provides an easily replaceable robotic hand for a robotic arm, are achieved through the following specific technical means:

[0007] A replaceable robotic hand for a robotic arm includes a fixed base, a robotic arm assembly, a mounting slot, a robotic hand mounting base, a mounting block, a mechanical gripper, a mounting protection mechanism, and a mounting limiting mechanism. The robotic arm assembly is mounted on the upper end of the fixed base. The mounting slot is located inside the robotic arm assembly. The robotic hand mounting base is mounted on the lower end of the robotic arm assembly. The mounting block is fixedly connected to the upper surface of the robotic hand mounting base and is inserted into the inner side of the mounting slot. The mechanical gripper is fixedly mounted on the lower surface of the robotic hand mounting base. The mounting protection mechanism is located inside the front end of the robotic arm assembly. The mounting limiting mechanism is located outside the robotic hand mounting base.

[0008] Furthermore, the installation protection mechanism includes: a protective slider, a fixed pull rod, and a compression spring; there are two protective sliders, both of which are slidably connected to the inner side of the front end of the robotic arm assembly; there are two fixed pull rods, each fixedly connected to the outer side of the two protective sliders; there are two compression springs, one end of each compression spring is fixedly connected to the outer side of the two protective sliders, and the other end of each compression spring is fixedly connected to the inner side of the front end of the robotic arm assembly.

[0009] Furthermore, the installation protection mechanism also includes: a limiting slot; there are two limiting slots, both of which are located on the outside of the installation block.

[0010] Furthermore, the installation limiting mechanism includes: a limiting rod, a connecting ring, and a limiting protrusion; there are two limiting rods, both of which are fixedly connected to the outer side of the front end of the robotic arm assembly; the connecting ring is rotatably connected to the outer side of the robotic arm mounting base; there are two limiting protrusions, both of which are fixedly connected to the outer side of the connecting ring.

[0011] Furthermore, the installation limiting mechanism also includes: a fixed side rod and a sliding ring; there are two fixed side rods, both of which are fixedly connected to the outside of the robot arm mounting base; the sliding ring is slidably connected to the outside of the robot arm mounting base, and the sliding ring is slidably connected to the fixed side rod.

[0012] Furthermore, the installation limiting mechanism also includes: limiting holes, sliding blocks, limiting springs, and limiting pins; there are two limiting holes, each located inside the two limiting protrusions; there are two sliding blocks, each slidably connected to the inner side of the two fixed side rods, and both sliding blocks are fixedly connected to the sliding ring; there are two limiting springs, each with one end fixedly connected to the outer side of the two sliding blocks and the other end fixedly connected to the inner side of the two fixed side rods; there are two limiting pins, each fixedly connected to the lower end face of the two sliding blocks, and the limiting pins are inserted into the inner side of the limiting holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model achieves protection and initial installation of the mechanical gripper through the installation protective mechanism. When the robot arm mounting base is not installed, the protective slider, under the action of a compression spring, seals the mounting slot, preventing dust and impurities from entering, keeping the mounting slot clean, improving installation accuracy, and ensuring the stability of equipment operation. When the mounting block is inserted into the mounting slot, it pushes open the protective slider and inserts it. At this time, the protective slider, under the action of a compression spring, inserts into the limit slot, limiting the robot arm mounting base. Operation is simple and effectively improves work efficiency. The installation limiting mechanism enables the installation of the mechanical gripper. After inserting the mounting block into the mounting slot, rotating the connecting ring causes the limiting protrusion to rotate to the inside of the limiting rod. When the sliding block is in operation, the limiting spring causes the limiting pin to insert into the limiting socket, limiting the limiting protrusion. The limiting protrusion and the limiting rod together limit the robot arm mounting base. To disassemble, simply pull the sliding ring upwards, causing it to disengage from the limiting socket via the sliding block. Then rotate the connecting ring to disengage the limiting protrusion from the limiting rod, and finally pull the fixing rod outwards to disengage the protective slider from the limiting slot. This allows for easy disassembly and installation of the robot arm. The operation is convenient, improving work efficiency and reducing labor intensity. This mechanism not only protects and initially installs the mechanical gripper, ensuring a clean mounting slot, improving installation accuracy and equipment stability, but also enables the installation of the mechanical gripper, increasing work efficiency and reducing labor intensity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0016] Figure 2 This is a cross-sectional structural schematic diagram of the robotic arm mounting base of this utility model.

[0017] Figure 3 This is a schematic diagram of the limiting slot of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the protective slider of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the sliding block of this utility model.

[0020] Figure 6 This is a schematic diagram of the connecting ring of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Fixed base; 2. Robotic arm assembly; 201. Mounting slot; 202. Limiting rod; 3. Robotic arm mounting base; 301. Mounting block; 302. Limiting slot; 303. Fixed side rod; 4. Mechanical gripper; 5. Protective slider; 501. Fixed pull rod; 502. Compression spring; 6. Connecting ring; 601. Limiting protrusion; 602. Limiting insertion hole; 7. Sliding ring; 8. Sliding block; 801. Limiting spring; 802. Limiting pin. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1:

[0025] As attached Figures 1-4 As shown:

[0026] This utility model provides a replaceable robotic arm, comprising a fixed base 1, a robotic arm assembly 2, a mounting slot 201, a robotic arm mounting base 3, a mounting block 301, a mechanical gripper 4, a mounting protection mechanism, and a mounting limiting mechanism. The robotic arm assembly 2 is mounted on the upper end of the fixed base 1. The mounting slot 201 is formed on the inner side of the robotic arm assembly 2. The robotic arm mounting base 3 is mounted on the lower end of the robotic arm assembly 2. The mounting block 301 is fixedly connected to the upper end face of the robotic arm mounting base 3 and is inserted into the inner side of the mounting slot 201. The mechanical gripper 4 is fixedly mounted on the lower end face of the robotic arm mounting base 3. The mounting protection mechanism is located on the inner side of the front end of the robotic arm assembly 2. The mounting limiting mechanism is located on the outer side of the robotic arm mounting base 3.

[0027] The protective mechanism includes: a limiting slot 302, a protective slider 5, a fixing rod 501, and a compression spring 502. Two limiting slots 302 are provided, both located on the outer side of the mounting block 301. Two protective sliders 5 are provided, both slidably connected to the inner side of the front end of the robotic arm assembly 2. Two fixing rods 501 are provided, each fixedly connected to the outer side of one of the two protective sliders 5. Two compression springs 502 are provided, one end of each spring fixedly connected to the outer side of one of the two protective sliders 5, and the other end of each spring fixedly connected to the inner side of the front end of the robotic arm assembly 2.

[0028] The specific usage and function of this embodiment are as follows: When the robot arm mounting base 3 is not installed, the protective slider 5 will close the mounting slot 201 under the action of the compression spring 502 to prevent dust and impurities from entering the mounting slot 201. By inserting the mounting plug 301 into the inner side of the mounting slot 201, the mounting plug 301 will push the protective slider 5 open and insert it into the mounting slot 201. At this time, the protective slider 5 will be inserted into the inner side of the limiting slot 302 under the action of the compression spring 502 to limit the robot arm mounting base 3.

[0029] Example 2:

[0030] Based on Example 1, such as Figures 5-6 As shown, the installation limiting mechanism includes: a limiting rod 202, a fixed side rod 303, a connecting ring 6, a limiting protrusion 601, a limiting insertion hole 602, a sliding ring 7, a sliding block 8, a limiting spring 801, and a limiting pin 802; there are two limiting rods 202, both of which are fixedly connected to the outer side of the front end of the robotic arm assembly 2; there are two fixed side rods 303, both of which are fixedly connected to the outer side of the robotic arm mounting base 3; the connecting ring 6 is rotatably connected to the outer side of the robotic arm mounting base 3; there are two limiting protrusions 601, both of which are fixedly connected to the outer side of the connecting ring 6; there are two limiting insertion holes 602, which are respectively opened in two... The inner side of the limiting protrusion 601; the sliding ring 7 is slidably connected to the outer side of the robot arm mounting base 3, and the sliding ring 7 is slidably connected to the fixed side rod 303; there are two sliding blocks 8, which are slidably connected to the inner side of the two fixed side rods 303 respectively, and both sliding blocks 8 are fixedly connected to the sliding ring 7; there are two limiting springs 801, one end of which is fixedly connected to the outer side of the two sliding blocks 8 respectively, and the other end of which is fixedly connected to the inner side of the two fixed side rods 303 respectively; there are two limiting pins 802, which are fixedly connected to the lower end face of the two sliding blocks 8 respectively, and the limiting pins 802 are inserted into the inner side of the limiting hole 602.

[0031] The specific usage and function of this embodiment are as follows: After the mounting block 301 is inserted into the mounting slot 201, the connecting ring 6 is rotated to make the limiting protrusion 601 rotate to the inside of the limiting rod 202. At this time, the sliding block 8 will drive the limiting pin 802 to be inserted into the inside of the limiting hole 602 under the action of the limiting spring 801, thus limiting the limiting protrusion 601. Through the setting of the limiting protrusion 601 and the limiting rod 202, the robot arm mounting base 3 is limited. When disassembly is required, simply pull the sliding ring 7 upward to make the sliding ring 7 drive the limiting pin 802 to disengage from the limiting hole 602 through the sliding block 8. Then, the connecting ring 6 can be rotated to make the limiting protrusion 601 disengage from the limiting rod 202. Then, the fixing rod 501 is pulled outward to make the protective slider 5 disengage from the limiting slot 302. At this time, the robot arm mounting base 3 can be disassembled.

[0032] The following points should be noted in this article:

[0033] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0034] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A replaceable robotic arm, comprising a fixed base (1), a robotic arm assembly (2), a mounting slot (201), a robotic arm mounting base (3), a mounting block (301), a mechanical gripper (4), a mounting protection mechanism, and a mounting limiting mechanism; the robotic arm assembly (2) is mounted on the upper end of the fixed base (1); the mounting slot (201) is formed on the inner side of the robotic arm assembly (2); characterized in that: The robotic arm mounting base (3) is installed at the lower end of the robotic arm assembly (2); the mounting block (301) is fixedly connected to the upper end face of the robotic arm mounting base (3), and the mounting block (301) is inserted into the inner side of the mounting slot (201); the mechanical gripper (4) is fixedly installed on the lower end face of the robotic arm mounting base (3); the installation protection mechanism is located on the inner side of the front end of the robotic arm assembly (2); and the installation limiting mechanism is located on the outer side of the robotic arm mounting base (3).

2. The robot arm with a hand that is easy to replace according to claim 1, characterized in that: The installation protection mechanism includes: a protective slider (5), a fixed pull rod (501), and a compression spring (502); there are two protective sliders (5), and both protective sliders (5) are slidably connected to the inner side of the front end of the robotic arm assembly (2); there are two fixed pull rods (501), and the two fixed pull rods (501) are respectively fixedly connected to the outer side of the two protective sliders (5); there are two compression springs (502), one end of the two compression springs (502) is respectively fixedly connected to the outer side of the two protective sliders (5), and the other end of the two compression springs (502) is fixedly connected to the inner side of the front end of the robotic arm assembly (2).

3. The robot arm with a hand that is easy to replace according to claim 2, characterized in that: The installation protection mechanism further includes: a limiting slot (302); there are two limiting slots (302), both of which are located on the outside of the mounting block (301).

4. The robot arm with a hand that is easy to replace according to claim 1, characterized in that: The installation limiting mechanism includes: a limiting rod (202), a connecting ring (6), and a limiting protrusion (601); there are two limiting rods (202), and both limiting rods (202) are fixedly connected to the outer side of the front end of the robotic arm assembly (2); the connecting ring (6) is rotatably connected to the outer side of the robotic arm mounting base (3); there are two limiting protrusions (601), and both limiting protrusions (601) are fixedly connected to the outer side of the connecting ring (6).

5. The mechanical arm with the easily replaceable robot hand according to claim 4, wherein: The installation limiting mechanism further includes: a fixed side rod (303) and a sliding ring (7); there are two fixed side rods (303), both of which are fixedly connected to the outside of the robot arm mounting base (3); the sliding ring (7) is slidably connected to the outside of the robot arm mounting base (3), and the sliding ring (7) is slidably connected to the fixed side rod (303).

6. The robot arm with a hand that is easy to replace according to claim 5, characterized in that: The installation limiting mechanism further includes: a limiting insertion hole (602), a sliding block (8), a limiting spring (801), and a limiting pin (802); there are two limiting insertion holes (602), which are respectively opened on the inner side of two limiting protrusions (601); there are two sliding blocks (8), which are respectively slidably connected to the inner side of two fixed side rods (303), and both sliding blocks (8) are fixedly connected to the sliding ring (7). The limiting springs (801) are provided in two, with one end of each limiting spring (801) fixedly connected to the outer side of the two sliding blocks (8), and the other end of each limiting spring (801) fixedly connected to the inner side of the two fixed side rods (303); the limiting pins (802) are provided in two, with each limiting pin (802) fixedly connected to the lower end face of the two sliding blocks (8), and the limiting pins (802) inserted into the inner side of the limiting hole (602).

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