A simple manual connector for the end of a robot

Abstract

The present invention provides a simple manual connector for the end of a robot, which includes a first connector connected to the device end, a second connector connected to the end of the robot, and a locking and limiting block detachably connected to the second connector. A cylindrical convex portion is provided on the first connector, and the cylindrical convex portion is inserted into the second connector and locked or disengaged from the second connector by a snap structure. The locking and limiting block abuts against one side of the cylindrical convex portion to limit the first connector. The locking or disengaging function is realized through the snap-fit assembly structure of the circular ring buckle portion provided on the cylindrical convex portion of the first connector and the clamping portion provided in the inner cavity of the through hole of the second connector. During assembly, the connectors are automatically centered with each other, saving time. The structure design is simple and compact, the connection stability is good, the manufacturing cost and the assembly difficulty are reduced, it is easy to maintain, the replacement efficiency is improved, and the practicability is strong.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial robots, and particularly to a simple manual connector for the end of a robot. Background Art

[0002] Industrial robots are widely used in production and manufacturing, and different specifications of equipment need to be frequently replaced at the end of industrial robots during application.

[0003] In the prior art, the connection between the end of the robot and the equipment end usually adopts the method of bolt fastening connection. When installing, all the installation holes of the flange at the end of the robot need to be precisely aligned with the equipment end to install all the bolts. At the same time, when replacing the equipment, all the bolts need to be disassembled and precisely aligned again for assembly, which is time-consuming and laborious. Especially when the replacement times are relatively many, the working efficiency is greatly reduced. There is also a pneumatic connection method, which has a fast replacement speed, but its control program and design structure are complex, the cost is high, and there are certain safety hazards, so users cannot easily accept it. Summary of the Invention

[0004] The purpose of the present invention is to provide a simple manual connector for the end of a robot, aiming to solve the problems of low working efficiency caused by the existing connection method between the end of the robot and the equipment, and complex structure design and high cost.

[0005] The present invention provides a simple manual connector for the end of a robot, including a first joint connected to the equipment end and a second joint connected to the end of the robot. It is characterized in that it further includes a locking and limiting block detachably connected to the second joint. A cylindrical convex part is provided on the first joint, and the cylindrical convex part is inserted into the second joint and locked or disengaged with the second joint by a snap structure. The locking and limiting block abuts against one side of the cylindrical convex part to limit the first joint.

[0006] Further, the snap structure includes: a cylindrical convex part integrally provided with the first joint, and a circular ring buckle part is provided on the cylindrical convex part; and, a through-hole inner cavity is provided in the second joint, and a bayonet is provided in the through-hole inner cavity, and the bayonet is provided as a clamping part; wherein the cylindrical convex part is inserted into the through-hole inner cavity, and the clamping part is controlled to be snap-locked or disengaged with the buckle part of the first joint by the displacement of the second joint.

[0007] Further, the cylindrical convex part and the through-hole inner cavity are concentric circles with equal diameters, the bayonet and the buckle part are concentric circles with equal diameters, and the cylindrical convex part and the bayonet are concentric circles with equal diameters but different centers.

[0008] The present invention realizes the locking or disengaging function through the snap - fit assembly structure between the circular ring buckle part arranged on the cylindrical convex part of the first joint and the clamping part arranged in the inner cavity of the through - hole of the second joint, and realizes the functions of threading, extracting, and displacement. The structure design is simple and compact, with a small volume and convenient assembly. Also, the cylindrical convex part of the first joint and the inner cavity of the through - hole of the second joint have the same diameter and the same axis center, so that the cylindrical convex part of the first joint can penetrate the inner cavity of the through - hole of the second joint, and the bayonet of the second joint and the buckle part of the first joint have the same diameter and the same axis center, and are snap - fitted under the displacement control of the second joint. The upper and lower end faces of the bayonet of the second joint are tightly attached to the upper and lower end faces of the buckle part of the first joint. During assembly, the clamping part and the circular ring buckle part are automatically centered, saving time, having high strength and good connection stability.

[0009] Further, one end of the first joint away from the cylindrical convex part is provided with a U - shaped clamping block, and the U - shaped clamping block is provided with bolt mounting holes for connecting equipment.

[0010] Further, the second joint adopts a horseshoe - shaped structure, and one end of the second joint is provided with a mounting hole for connecting with the locking and limiting block.

[0011] Further, the locking and limiting block is provided with a threaded mounting hole for connecting with the second joint, and one end of the convex part of the locking and limiting block abuts against one side of the cylindrical convex part of the first joint.

[0012] After the cylindrical convex part of the first joint penetrates into the inner cavity of the through - hole of the second joint for displacement to achieve clamping, the second joint is connected with the locking and limiting block by a horseshoe - shaped structure with an opening. The convex part of the locking and limiting block abuts against one side of the cylindrical convex part of the first joint to limit the first joint, increasing its stability and reliability, effectively preventing the first joint from not falling off during operation, and ensuring the safety of the equipment.

[0013] The present invention provides a simple manual connector applied to the end of a robot. Through the snap - fit assembly structure between the circular ring buckle part arranged on the cylindrical convex part of the first joint and the clamping part arranged in the inner cavity of the through - hole of the second joint, and the end face of the convex part of the locking and limiting block abuts against one side of the cylindrical convex part of the first joint to realize the locking or disengaging function. The structure of the equipment is simple and compact, it is easy to accurately align between the joints, and only by assembling the bolts of the locking and limiting block can the equipment be quickly installed or replaced. The manual assembly is simple, time - saving, greatly improves the work efficiency, reduces the manufacturing cost and assembly difficulty, and has reliable stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show the application embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0015] Figure 1 Schematic structural diagram of a simple manual connector for the end of a robot provided by an embodiment of the present invention;

[0016] Figure 2 Schematic diagram of a first joint of a simple manual connector for the end of a robot provided by an embodiment of the present invention;

[0017] Figure 3 Schematic diagram of a second joint of a simple manual connector for the end of a robot provided by an embodiment of the present invention;

[0018] Figure 4 Schematic diagram of a locking limit block of a simple manual connector for the end of a robot provided by an embodiment of the present invention;

[0019] In the figure: 1 - first joint, 2 - second joint, 3 - locking limit block, 11 - cylindrical convex part, 12 - buckle part, 13 - U-shaped clamping block, 14 - flat end face, 20 - through hole cavity, 21 - bayonet, 22 - clamping part, 23 - mounting hole, 24 - flange mounting hole, 25 - bayonet step, 26 - second joint opening flat end face, 30 - mounting hole, 31 - locking limit block protruding part. Specific embodiments

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The following specifically describes the specific implementation of the present invention with reference to specific embodiments.

[0022] As Figure 1 shown, in the embodiment, a simple manual connector for the end of a robot includes a first joint connected to the device end and a second joint connected to the end of the robot, and further includes a locking limit block detachably connected to the second joint. A cylindrical convex part is provided on the first joint, and the cylindrical convex part is inserted into the second joint and locked or disengaged with the second joint by a snap structure. The locking limit block abuts against one side of the cylindrical convex part to limit the first joint.

[0023] Specifically, as Figures 1 to 2As shown, the cylindrical convex part 11 is provided with a ring buckle part 12. The center of the cylindrical convex part 11 and the center of the ring buckle part 12 are eccentrically arranged, thereby forming the ring buckle part 12 of the first joint cylindrical convex part. The diameter of the ring buckle part 12 is equal to the diameter of the cylindrical convex part 11. The second joint 2 is further provided with a through-hole inner cavity 20, and the diameter of the through-hole inner cavity 20 is equal to the outer diameter of the cylindrical convex part 11 of the first joint 1, so that the cylindrical convex part 11 of the first joint can penetrate into the second joint. On one side of the through-hole inner cavity 20 of the second joint, there is a bayonet 21, and at the bayonet 21, there is a ring clamping part 22 that cooperates with the ring buckle part 12 of the first joint 1. The diameter of the ring clamping part 22 is equal to the diameter of the ring buckle part 12 of the first joint 1. The center of the ring clamping part 22 and the center of the through-hole inner cavity 20 are eccentrically arranged, and the eccentric distance and direction are equal to and opposite to the eccentric distance between the centers of the cylindrical convex part 11 and the ring buckle part 12 of the first joint 1, thereby forming a bayonet step 25 at the bayonet 21 that cooperates with the buckle part 12 of the first joint 1.

[0024] In the embodiment, for a simple manual connector at the end of a robot, the center of the cylindrical convex part 11 of the first joint 1 and the center of the through-hole inner cavity 20 of the second joint 2 are on the same axis. The cylindrical convex part 11 of the first joint 1 can penetrate into the through-hole inner cavity 20 of the second joint 2, and then the second joint 2 is controlled by the robot end program to displace so that their centers are not on the same axis. Because the ring clamping part 22 of the second joint and the ring buckle part 12 of the first joint have the same center and the same arc surface, they are automatically centered during displacement, further enabling the centers of the ring buckle part 12 of the first joint 1 and the ring clamping part 22 of the second joint 2 to be on the same axis, realizing the buckle locking function. The locking or detachment of the first joint 1 and the second joint 2 is achieved through the deviation of the centers and the displacement amount.

[0025] At the other end of the first joint 11, there is a clamping block for installing the equipment end. The shape of the clamping block is U-shaped and is provided with an installation hole 13 for installing the equipment end, which is convenient for connecting and replacing the equipment. Specifically, as Figures 1 to 3 shown, the second joint 2 is provided with a robot flange installation hole 24, and the second joint and the robot flange are fixedly connected by bolts, so as to conveniently lock the second joint stably at the end of the robot.

[0026] For a simple manual connector at the end of a robot, the first joint 1 connecting the equipment is placed in a fixed frame, and the second joint 2 is controlled by the robot end program. The robot end program controls the second joint 2 to sleave the through-hole inner cavity 20 over the cylindrical convex part 11 of the first joint 1 or the cylindrical convex part 11 of the first joint 1 to penetrate into the through-hole inner cavity 20 of the second joint 2, and controls the displacement of the second joint 2 so that the ring buckle part 12 of the first joint is buckled on the bayonet step 25 at the bayonet 21 of the second joint 2 for snap-fit assembly, realizing the locking or detachment function of the first joint 1 and the second joint 2.

[0027] In the embodiment, since the bayonet step is arc-shaped, when assembling, the clamping portion 22 and the ring buckle portion 12 are automatically centered. By using the end program control of the robot or manual operation to control the displacement of the second joint, the eccentricity distance and direction of the space from the center of the circle mentioned above are coordinated to achieve clearance assembly. Its structural design is simple and compact, with high strength, small volume, extremely convenient assembly, greatly reduced manufacturing cost and assembly difficulty, saving a large amount of assembly time, and greatly improving the working efficiency of replacement or installation.

[0028] In the embodiment, as Figure 1 , Figure 4 shown, in order to enhance the stability of its manual connector, the second joint 2 adopts a horseshoe-shaped structure. An installation hole 23 is provided on the end face 26 of the opening plane of the second joint 2 and is connected to the locking limit block 3. The locking limit block 3 is provided with a threaded installation hole 30 connected to the second joint 2, and the protruding portion 31 of the locking limit block abuts against one side of the cylindrical protruding portion 11 of the first joint 1. Specifically, the cylindrical protruding portion 11 of the first joint 1 adopts a "D" shape, its ring buckle portion 12 is located on the arc end face of the "D" shape, and the other end is a flat end face 14 (i.e., the side face of the cylindrical protruding portion). The ring clamping portion 22 of the second joint 2 is located at one end of the horseshoe shape with an arc, and the other end is the opening plane end face 26; the opening plane type end face 26 of the second joint 2, the protruding portion 31 of the locking limit block, and the side face 14 of the cylindrical protruding portion 11 of the first joint 1 are arranged in parallel. When connecting the second joint, the protruding portion 31 of the locking limit block is embedded into the second joint 2 to abut against the side face 14 of the cylindrical protruding portion 11 of the first joint 1, and then the first joint is limited by the installation of the locking limit block 3, so that the first joint 1 and the second joint 2 are not easily loosened during operation, the installation is more convenient, easy to maintain, firm and reliable, solving the problem that it is laborious and time-consuming to accurately align each installation hole in the prior art by the bolt fastening connection method, simplifying the assembly process, and improving the efficiency and connection stability.

[0029] A method for a simple manual connector at the end of a robot. The specific implementation process is as follows: Fix the device connected to the first joint 1, and connect the second joint 2 at the end of the robot. Insert the cylindrical convex part 11 of the first joint 1 into the inner cavity 20 of the through hole of the second joint 2, so that one end face of the second joint 2 is completely attached to one end face of the clamping block of the first joint 1. Then, drive the clamping part 22 of the second joint 2 and the buckle part 12 of the first joint 1 to be closely attached and automatically centered on the same axis to achieve snap assembly. Then, install the locking limit block 3 so that its protruding part 31 abuts against one side of the cylindrical convex part 11 of the first joint 1 to reach the locked state. When unloading the device at the end of the robot, place the device connected to the first joint 1 in the fixing frame, manually remove the bolt of the locking limit block 3, displace the second joint 2 so that the inner cavity 20 of the through hole and the center of the cylindrical convex part 11 of the first joint 1 are on the same axis, and then pull out the cylindrical convex part 11 of the first joint 1 from the inner cavity 20 of the through hole of the second joint 2 to complete the unloading of the device.

[0030] In the embodiment, the locking limit block and the second joint can be integrally fixed. A plurality of locking pins can be arranged on the second joint and a plurality of corresponding pin holes can be arranged on the cylindrical convex part of the first joint. The cylindrical convex part of the first joint is limited by the locking pins in contact to prevent the first joint from falling off or disengaging from the second joint.

[0031] The present invention provides a manual connector applied to the end of a robot. Through the snap-fit assembly structure of the ring buckle part arranged on the cylindrical convex part of the first joint and the clamping part arranged in the inner cavity of the through hole of the second joint, and the locking limit block abuts against one side of the cylindrical convex part to limit the first joint to achieve the locking or disengaging function. The structure of the device is simple and compact, and it is easy to accurately align between the joints. Only by assembling the bolts of the locking limit block can the device be quickly installed or replaced. Manual assembly is simple and time-saving, greatly improving work efficiency, with reliable stability, making the manual connector miniaturized. In actual work, it is easy for operators to operate and maintain, and the small volume reduces the bearing capacity of the robot joints, also greatly reducing the manufacturing cost and assembly difficulty, improving the device replacement efficiency. Even if the replacement times are frequent, it will not affect the production efficiency, and the practicability is greatly enhanced.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A simple manual connector for the end of a robot, comprising a first connector connected to the device end and a second connector connected to the end of the robot, characterized in that, It further includes a locking and limiting block detachably connected to the second joint. A cylindrical convex portion is provided on the first joint. The cylindrical convex portion is inserted into the second joint and is locked or disengaged with the second joint by a snap structure. The locking and limiting block abuts against one side of the cylindrical convex portion to limit the first joint. The snap structure includes: a cylindrical convex portion integrally provided with the first joint, and a circular ring buckle portion provided on the cylindrical convex portion; and, a through-hole inner cavity is provided in the second joint, and a bayonet is provided in the through-hole inner cavity, and the bayonet is provided as a clamping portion; wherein the cylindrical convex portion is inserted into the through-hole inner cavity, and the snap-type locking or disengagement of the clamping portion and the buckle portion of the first joint is controlled by the displacement of the second joint. The cylindrical convex portion and the through-hole inner cavity are concentric circles with equal diameters, the bayonet and the buckle portion are concentric circles with equal diameters, and the cylindrical convex portion and the bayonet are concentric circles with equal diameters but different centers. A U-shaped clamping block is provided at one end of the first joint away from the cylindrical convex portion, and the U-shaped clamping block is provided with a bolt mounting hole for connecting the device.

2. The simple manual connector for the end of a robot according to claim 1, characterized in that: The second joint adopts a horseshoe-shaped structure, and a mounting hole is provided at one end of the second joint for connecting with the locking and limiting block.

3. The simple manual connector for the end of a robot according to claim 2, characterized in that: The locking and limiting block is provided with a threaded mounting hole for connecting with the second joint, and a protruding portion at one end of the locking and limiting block abuts against one side of the cylindrical convex portion of the first joint.

4. A method of applying the simple manual connector for the end of a robot according to any one of claims 1-3, characterized in that: When installing the device at the end of the robot, fix the device connected to the first joint, connect the second joint at the end of the robot, insert the cylindrical convex portion of the first joint into the through-hole inner cavity of the second joint, displace the second joint to make the clamping portion of the second joint closely fit with the buckle portion of the first joint, and then install the locking and limiting block so that its protruding portion abuts against one side of the cylindrical convex portion of the first joint.

5. A method of applying the simple manual connector for the end of a robot according to any one of claims 1-3, characterized in that: When unloading the device at the end of the robot, fix the device connected to the first joint, remove the locking and limiting block, displace the second joint to the central axis of the through-hole inner cavity, and then pull out the cylindrical convex portion of the first joint from the through-hole inner cavity of the second joint to complete the device unloading.

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