Clamping and positioning assembly for robot welding

Abstract

The utility model relates to the technical field of robot manipulators, and discloses a robot welding, clamping and positioning assembly which comprises a supporting assembly, an installation assembly installed with a mechanical arm is arranged above the supporting assembly, and a driving assembly is installed below the supporting assembly. The driving assembly comprises an air cylinder, a connecting beam and two groups of guide rods; through cooperation of the supporting assembly, the air cylinder, the connecting beam, the guide rod, the double-end hinge piece, the connecting assembly and the clamping assembly, the supporting assembly facilitates installation of the air cylinder and the clamping assembly, the telescopic end of the air cylinder drives the connecting beam to ascend and descend, and then the guide rod drives the double-end hinge piece to be rotationally connected with the connecting assembly; therefore, the distance between the clamping plates is adjusted through overturning of the connecting assembly, so that the buffering assembly can clamp the object conveniently, the object clamping efficiency is improved, the number of driving devices is reduced, the production cost of the manipulator of the robot is reduced, and the object clamping stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of robot manipulators, in particular to a robot welding clamping and positioning component. Background Art

[0002] Industrial robots are multi-joint manipulators or multi-degree-of-freedom machine devices widely used in the industrial field. They have a certain degree of automation and can rely on their own power and control capabilities to achieve various industrial processing and manufacturing functions. Industrial robots are widely used in various industrial fields such as electronics, logistics, and chemicals. Industrial robots mainly use clamping devices to complete the handling of objects or equipment. The clamping devices on the robots mostly refer to manipulators. The manipulators are directly welded to the transmission bracket of the robot, and the transmission device drives the clamping plate to clamp and place the objects;

[0003] In the prior art, the Chinese utility model with publication number: CN214163063U discloses a clamping device for an industrial robot, including a connecting plate, a clamping assembly, a hydraulic pusher and a connecting frame, wherein the hydraulic pusher is fixed at both ends of the connecting plate, the connecting plate is provided with a sliding groove, and both sides of the sliding groove are provided with limit slideways; the clamping assembly includes a frame plate and a clamping plate, the frame plate is embedded in the connecting plate, a connecting disk is welded on the frame plate, and a rotating shaft is provided between the connecting disks. The clamping device of the utility model adopts a telescopic structure, which can adjust the position of the clamping assembly according to the size of the object, so that the clamping area between the clamping assemblies matches the size of the object. This method improves the practicality of the clamping device and avoids the problem of clamping limitation. The connecting plate connected to the clamping assembly is connected with the motor on the connecting frame, and the motor can drive the clamping assembly to adjust the clamping angle, which effectively enhances the functionality of the clamping device and avoids the cumbersome process caused by the overall position adjustment of the robot.

[0004] Although the above technical solution is convenient for adjusting the clamping area of ​​the clamping device to match the object, and the angle of the clamping assembly can be adjusted by the motor, this technical solution requires the use of more driving devices, which increases the production cost of the manipulator, and the efficiency of clamping the object needs to be further improved. Therefore, we need to propose a robot welding clamping and positioning assembly. Utility Model Content

[0005] The purpose of the utility model is to provide a robot welding clamping and positioning component, which can reduce the driving equipment of the robot mechanical gripper, thereby reducing the production cost of the mechanical gripper, while improving the clamping efficiency of the mechanical gripper, and is suitable for clamping and positioning objects of different specifications, expanding the scope of application, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a robot welding clamping and positioning assembly, comprising a support assembly, a mounting assembly mounted with a mechanical arm is arranged above the support assembly, and a driving assembly is installed below the support assembly;

[0007] The driving assembly includes a cylinder, a connecting beam and two groups of guide rods, the telescopic end of the cylinder is fixedly connected to the middle of the lower surface of the connecting beam, the two groups of guide rods are fixedly connected to the two ends of the lower surface of the connecting beam, the lower ends of the two groups of guide rods are fixedly connected to double-headed hinges, both ends of the double-headed hinges are rotatably connected to connecting assemblies, a clamping assembly for clamping objects is provided at one end of the connecting assembly away from the double-headed hinge, and a buffer assembly is provided at the lower end of the clamping assembly.

[0008] Preferably, the support assembly includes a first support plate and two groups of second support plates, the two groups of second support plates are welded on both sides of the first support plate, the cylinder is installed on the lower surface of the first support plate, and the lower ends of the two groups of guide rods respectively pass through the two groups of second support plates.

[0009] Preferably, a limiting frame is welded in the middle of the lower surface of the two groups of the second support plates, both sides of the inner cavity of the limiting frame are fixedly connected to guide rails, and the other two ends of the double-headed hinge are fixedly connected to sliders slidably connected to the guide rails.

[0010] Preferably, the clamping assembly comprises a clamping plate, an upper end of one side of the clamping plate is fixedly connected to a connecting seat rotatably connected to the connecting assembly, and a guide block is welded to the upper surface of the clamping plate.

[0011] Preferably, guide grooves for sliding connection of guide blocks are provided at both ends of the lower surface of the second support plate, and the cross section of the guide blocks is convex-shaped.

[0012] Preferably, the connecting assembly includes a connecting rod, a first fixing pin and a second fixing pin, one end of the connecting rod is provided with a groove that fits with the double-head hinge, and one end of the connecting rod is rotatably connected to the double-head hinge through the first fixing pin, and the other end of the connecting rod is fixedly connected with a protrusion, and the protrusion is rotatably connected to the connecting seat through the second fixing pin.

[0013] Preferably, the mounting assembly includes a mounting plate and four groups of hollow columns, the lower ends of every two groups of hollow columns are welded with a base plate, the upper ends of the four groups of hollow columns are welded to the lower surface of the mounting plate, two groups of perforated docking plates are symmetrically welded to the upper surface of the mounting plate, and the two groups of base plates are welded to both ends of the upper surfaces of the two groups of second support plates.

[0014] Preferably, the buffer assembly includes a buffer plate and multiple groups of limiting shafts, one end of each group of limiting shafts passes through a splint and is fixedly connected to one side of the buffer plate, springs are sleeved on the outer sides of each group of limiting shafts, and multiple groups of springs are arranged between the splint and the buffer plate, and a buffer pad is bonded to the other side of the buffer plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model mainly cooperates between a support component, a cylinder, a connecting beam, a guide rod, a double-headed hinge, a connecting component and a clamping component. The support component facilitates the installation of the cylinder and the clamping component, and the connecting beam is driven to rise and fall by the telescopic end of the cylinder, so that the guide rod drives the double-headed hinge to rotate and connect with the connecting component, so that the spacing of the clamping plates is adjusted by flipping the connecting component, so that the buffer component can clamp the object, thereby improving the clamping efficiency of the object, reducing the number of driving devices, reducing the production cost of the robot's manipulator, and improving the stability of the clamped object. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation assembly structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the connecting component, the clamping component and the buffer component of the utility model.

[0021] In the figure: 100, installation assembly; 101, installation plate; 102, docking plate; 103, hollow column; 104, bottom plate; 200, drive assembly; 201, cylinder; 202, connecting beam; 203, guide rod; 204, double-headed hinge; 205, slider; 300, support assembly; 301, first support plate; 302, second support plate; 303, limit frame; 304, guide groove; 305, guide rail; 400, connecting assembly; 401, connecting rod; 402, protrusion; 403, groove; 404, first fixing pin; 405, second fixing pin; 500, clamping assembly; 501, clamping plate; 502, connecting seat; 503, guide block; 600, buffer assembly; 601, buffer plate; 602, buffer pad; 603, limit shaft rod; 604, spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a robot welding clamping and positioning assembly, including a support assembly 300, a mounting assembly 100 mounted with a robot arm is arranged above the support assembly 300, and a driving assembly 200 is installed below the support assembly 300;

[0024] The driving assembly 200 includes a cylinder 201, a connecting beam 202 and two groups of guide rods 203. The telescopic end of the cylinder 201 is fixedly connected to the middle of the lower surface of the connecting beam 202. The two groups of guide rods 203 are fixedly connected to the two ends of the lower surface of the connecting beam 202. The lower ends of the two groups of guide rods 203 are fixedly connected to a double-headed hinge 204. Both ends of the double-headed hinge 204 are rotatably connected to a connecting assembly 400. A clamping assembly 500 for clamping an object is provided at one end of the connecting assembly 400 away from the double-headed hinge 204, and a buffer assembly 600 is provided at the lower end of the clamping assembly 500.

[0025] The support assembly 300 includes a first support plate 301 and two groups of second support plates 302. The two groups of second support plates 302 are welded on both sides of the first support plate 301. The cylinder 201 is installed on the lower surface of the first support plate 301. The lower ends of the two groups of guide rods 203 respectively pass through the two groups of second support plates 302. The first support plate 301 and the second support plate 302 facilitate the installation of the drive assembly 200 and the clamping assembly 500, and the structure is simple.

[0026] A limiting frame 303 is welded to the middle part of the lower surface of the two groups of second support plates 302, and guide rails 305 are fixedly connected to both sides of the inner cavity of the limiting frame 303. The other two ends of the double-headed hinge 204 are fixedly connected to sliders 205 that are slidably connected to the guide rails 305. The limiting frame 303 is used to prevent the double-headed hinge 204 from touching the object when clamping, and the guide rails 305 and the sliders 205 are used to improve the stability of the lifting and lowering of the double-headed hinge 204.

[0027] The clamping assembly 500 includes a clamping plate 501, and the upper end of one side of the clamping plate 501 is fixedly connected to a connecting seat 502 that is rotatably connected to the connecting assembly 400. A guide block 503 is welded to the upper surface of the clamping plate 501. The connecting seat 502 facilitates the relative movement of the clamping plate 501 under the action of the connecting assembly 400, and the guide block 503 facilitates the limitation of the moving direction of the clamping plate 501.

[0028] Both ends of the lower surface of the second support plate 302 are provided with guide grooves 304 for sliding connection of the guide block 503. The cross-section of the guide block 503 is convex-shaped. The guide grooves 304 are convenient for limiting the moving direction of the clamping plate 501, and at the same time, convenient for supporting the clamping plate 501, thereby improving the stability of the clamped object.

[0029] The connecting assembly 400 includes a connecting rod 401, a first fixing pin 404 and a second fixing pin 405. One end of the connecting rod 401 is provided with a groove 403 that fits with the double-headed hinge 204, and one end of the connecting rod 401 is rotatably connected to the double-headed hinge 204 through the first fixing pin 404. The other end of the connecting rod 401 is fixedly connected with a protrusion 402, and the protrusion 402 is rotatably connected to the connecting seat 502 through the second fixing pin 405. The connecting rod 401 is used to convert the lifting and lowering movement of the double-headed hinge 204 into the relative movement of the clamping assembly 500, thereby facilitating the clamping of the object by the splint 501 controlling the buffer assembly 600.

[0030] The mounting assembly 100 includes a mounting plate 101 and four groups of hollow columns 103. The lower ends of every two groups of hollow columns 103 are welded with a base plate 104. The upper ends of the four groups of hollow columns 103 are welded to the lower surface of the mounting plate 101. Two groups of docking plates 102 with holes are symmetrically welded to the upper surface of the mounting plate 101. The two groups of base plates 104 are welded to the two ends of the upper surfaces of the two groups of second support plates 302. The hollow columns 103 are hollow in design, which reduces the weight of the mounting assembly 100 and increases the load-bearing range of the object. The docking plate 102 is used to facilitate the installation of the clamping device and the robot's mechanical arm, and the assembly and disassembly are convenient.

[0031] The buffer assembly 600 includes a buffer plate 601 and multiple sets of limiting shafts 603. One ends of the multiple sets of limiting shafts 603 pass through the splint 501 and are fixedly connected to one side of the buffer plate 601. The outer sides of the multiple sets of limiting shafts 603 are sleeved with springs 604, and the multiple sets of springs 604 are arranged between the splint 501 and the buffer plate 601. A buffer pad 602 is bonded to the other side of the buffer plate 601. The buffer pad 602 contacts the object so that the buffer plate 601 compresses the spring 604, thereby avoiding damage to the object caused by rigid contact with the object, thereby improving the protection effect of the object during clamping.

[0032] When in use, the robot is installed with the robot's mechanical arm through the docking plate 102 on the mounting plate 101. When clamping an object, the telescopic rod of the cylinder 201 contracts to drive the guide rod 203 on the connecting beam 202 to descend, thereby causing the double-headed hinge 204 on the guide rod 203 to flip over through the first fixed pin 404, and the connecting rod 401 drives the guide block 503 on the clamping plate 501 to slide in the guide groove 304 through the second fixed pin 405 and the connecting seat 502, thereby making the two groups of clamping plates 501 relatively close, so that the buffer assembly 600 at the lower end of the opposite side of the clamping plate 501 is relatively close to the clamped object, and the buffer pad 602 on the buffer plate 601 compresses the spring 604 after contacting the object, thereby avoiding damage to the object due to rigid clamping, facilitating the clamping and positioning of objects of different specifications, improving the scope of application, improving the clamping efficiency, reducing the driving equipment, and reducing the overall production cost of the clamping device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robot welding clamping and positioning assembly, characterized in that: include: A support assembly (300), wherein a mounting assembly (100) mounted on the mechanical arm is arranged above the support assembly (300), and a driving assembly (200) is installed below the support assembly (300); The driving assembly (200) comprises a cylinder (201), a connecting beam (202) and two groups of guide rods (203); the telescopic end of the cylinder (201) is fixedly connected to the middle of the lower surface of the connecting beam (202); the two groups of guide rods (203) are fixedly connected to the two ends of the lower surface of the connecting beam (202); the lower ends of the two groups of guide rods (203) are fixedly connected to double-headed hinges (204); the two ends of the double-headed hinges (204) are rotatably connected to connecting assemblies (400); a clamping assembly (500) for clamping an object is provided at one end of the connecting assembly (400) away from the double-headed hinge (204); and a buffer assembly (600) is provided at the lower end of the clamping assembly (500).

2. A robot welding clamping and positioning assembly according to claim 1, characterized in that: The support assembly (300) comprises a first support plate (301) and two groups of second support plates (302), the two groups of second support plates (302) are welded to both sides of the first support plate (301), the cylinder (201) is mounted on the lower surface of the first support plate (301), and the lower ends of the two groups of guide rods (203) respectively penetrate the two groups of second support plates (302).

3. A robot welding clamping and positioning assembly according to claim 2, characterized in that: A limit frame (303) is welded in the middle of the lower surface of the two groups of the second support plates (302), and both sides of the inner cavity of the limit frame (303) are fixedly connected to guide rails (305), and the other two ends of the double-headed hinge (204) are fixedly connected to sliders (205) slidably connected to the guide rails (305).

4. A robot welding clamping and positioning assembly according to claim 3, characterized in that: The clamping assembly (500) comprises a clamping plate (501), an upper end of one side of the clamping plate (501) is fixedly connected to a connecting seat (502) rotatably connected to the connecting assembly (400), and a guide block (503) is welded to the upper surface of the clamping plate (501).

5. A robot welding clamping and positioning assembly according to claim 4, characterized in that: Both ends of the lower surface of the second support plate (302) are provided with guide grooves (304) for sliding connection of the guide block (503), and the cross section of the guide block (503) is arranged in a convex shape.

6. A robot welding clamping and positioning assembly according to claim 5, characterized in that: The connecting assembly (400) comprises a connecting rod (401), a first fixing pin (404) and a second fixing pin (405); one end of the connecting rod (401) is provided with a groove (403) which fits with the double-head hinge (204); one end of the connecting rod (401) is rotatably connected to the double-head hinge (204) via the first fixing pin (404); the other end of the connecting rod (401) is fixedly connected with a protrusion (402); and the protrusion (402) is rotatably connected to the connecting seat (502) via the second fixing pin (405).

7. A robot welding clamping and positioning assembly according to claim 6, characterized in that: The mounting assembly (100) comprises a mounting plate (101) and four groups of hollow columns (103), the lower ends of every two groups of the hollow columns (103) are welded with a bottom plate (104), the upper ends of the four groups of the hollow columns (103) are welded to the lower surface of the mounting plate (101), two groups of butt plates (102) with holes are symmetrically welded to the upper surface of the mounting plate (101), and the two groups of the bottom plates (104) are welded to the two ends of the upper surfaces of the two groups of second support plates (302).

8. The robot welding clamping and positioning assembly according to claim 7, characterized in that: The buffer assembly (600) includes a buffer plate (601) and multiple groups of limiting shaft rods (603), one end of each of the multiple groups of limiting shaft rods (603) passes through the clamping plate (501) and is fixedly connected to one side of the buffer plate (601), the outer sides of each of the multiple groups of limiting shaft rods (603) are sleeved with springs (604), and the multiple groups of springs (604) are arranged between the clamping plate (501) and the buffer plate (601), and a buffer pad (602) is bonded to the other side of the buffer plate (601).

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