Automatic welding device for cross arm

Abstract

The utility model discloses an automatic cross arm welding device which comprises a mechanical arm, a welding machine installed on the rear side of the mechanical arm, a wire shearing machine installed on the left side of the mechanical arm, a welding gun installed at the moving end of the mechanical arm and connected with the welding machine, and a cross arm body. A first welding machine frame is installed on the front side of the mechanical arm, a second welding machine frame is installed on the front side of the mechanical arm, the first welding machine frame and the second welding machine frame are consistent in structure, the first pressing mechanism and the second pressing mechanism are both composed of pressing air cylinders and pressing rods, and the first hanging plate station and the second hanging plate station are both composed of jacking air cylinders and positioning plates. According to the device, the function of semi-automatic machining is achieved, products are manually placed during use, automatic welding is completed through a mechanical arm, compared with previous welding completely depending on manual work, the problems of inaccurate positioning, high labor intensity and low welding precision are solved, and meanwhile the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical direction of crossarms, and specifically relates to an automatic crossarm welding device. Background Art

[0002] The cross arm is an angle iron fixed horizontally on the top of the pole, with a porcelain bottle on it, used to support the overhead wires. The cross arm is an important component of the pole tower. Its function is to install insulators and hardware to support the conductors and lightning conductors and keep them at a certain safe distance as required. With the continuous advancement of technology, there are more and more types of cross arms, including Figure 6 The cross arm shown is composed of a main frame, a hanging plate and a curved plate, and a welding device is required to fix the hanging plate and the curved plate to the main frame.

[0003] Existing welding devices have a low degree of automation, which makes manual operation tedious and laborious. Manual operation also easily leads to inaccurate positioning, which in turn reduces welding accuracy. This phenomenon has become a problem that needs to be solved urgently by people in this field. Utility Model Content

[0004] The purpose of the present invention is to provide an automatic cross-arm welding device in view of the existing technology, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a cross-arm automatic welding device, comprising a manipulator, a welder installed on the rear side of the manipulator, a wire shear installed on the left side of the manipulator, a welding gun installed on the mobile end of the manipulator and connected to the welder, and a cross-arm body, a first welding frame installed on the right side of the manipulator, and a second welding frame installed on the front side of the manipulator, and the first welding frame and the second welding frame have the same structure.

[0006] A placing rack is fixed on the top of the first welding frame, a first pressing mechanism is installed on one end of the top of the first welding frame close to the placing rack, a second pressing mechanism is installed on the other end of the top of the first welding frame close to the placing rack, a first hanging plate station and a second hanging plate station are installed on the top of the first welding frame close to both sides of the placing rack and between the first pressing mechanism and the second pressing mechanism, a first clamping mechanism is installed on one side of the top of the first welding frame close to the first hanging plate station, a second clamping mechanism is installed on the side of the top of the first welding frame close to the second hanging plate station, an arc-shaped pressing plate mechanism is installed on the end of the top of the first welding frame away from the placing rack, and the cross arm body consists of a main frame, two hanging plates and an arc-shaped plate.

[0007] The first pressing mechanism and the second pressing mechanism are both composed of a pressing cylinder and a pressing rod.

[0008] The first plate hanging station and the second plate hanging station are both composed of a lifting cylinder and a positioning plate.

[0009] The first clamping mechanism and the second clamping mechanism have the same structure. The first clamping mechanism includes a clamping cylinder and a linear guide fixed to the inner wall of the first welding frame. The movable end of the clamping cylinder is fixed with a slide connected to the linear guide. The outer wall of the slide is connected with two movable rods distributed in a "V" shape. The tops of the two movable rods pass through the outer wall of the first welding frame and are connected with movable clamps rotatably connected to the first welding frame.

[0010] The arc-shaped pressure plate mechanism includes a mounting frame, the outer wall of the mounting frame is rotatably connected to a handle through a bearing, the outer wall of the handle is connected to a drag plate through a slider, the outer wall of the drag plate is provided with a positioning pin, and linear bearings are provided at the four corners of the mounting frame, and one end of the linear bearing is connected to a reset spring connected to the drag plate through a sliding shaft.

[0011] Preferably, the first pressing mechanism cooperates with the first hanging plate station, and the pin shaft on the top of the positioning plate of the first hanging plate station cooperates with a hanging plate through groove of the cross arm body.

[0012] Preferably, the second pressing mechanism cooperates with the second plate hanging station, and the pin shaft on the top of the positioning plate of the second plate hanging station cooperates with another plate hanging slot of the cross arm body.

[0013] Preferably, the bottom of the movable rod is rotatably connected to the slide plate via a shaft, and the top of the movable rod is rotatably connected to the movable clamp via a shaft.

[0014] Preferably, two groups of mounting holes are symmetrically distributed on the bottom of the mounting frame, and both mounting holes have a plurality of holes distributed at equal intervals.

[0015] Preferably, the drag plate forms a telescopic structure with the mounting frame via a return spring, and the drag plate is slidably connected to the handle via a slider.

[0016] Preferably, the positioning pin cooperates with the through groove on the arc-shaped plate of the cross arm body.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] (1) It realizes the function of semi-automatic processing. When in use, the products are placed manually and the robot completes the automatic welding. Compared with the previous manual welding, it solves the problems of inaccurate positioning, high labor intensity and low welding accuracy. At the same time, it also greatly improves production efficiency and meets people's work needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the composition of the first welding frame of the utility model;

[0022] Figure 3 This is a schematic diagram of the first clamping mechanism of the present invention;

[0023] Figure 4 This is a rear view schematic diagram of the arc-shaped pressing plate mechanism of the present invention;

[0024] Figure 5 This is a front view schematic diagram of the arc-shaped pressing plate mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the composition of the cross arm body of the utility model.

[0026] In the figure: 1. welding machine; 2. manipulator; 3. wire shearing machine; 4. welding gun; 5. first welding frame; 6. second welding frame; 7. placement rack; 8. first clamping mechanism; 9. second clamping mechanism; 10. first hanging plate station; 11. second hanging plate station; 12. first clamping mechanism; 1201. clamping cylinder; 1202. linear guide rail; 1203. slide plate; 1204. movable rod; 1205. movable clamp; 13. second clamping mechanism; 14. arc pressure plate mechanism; 1401. mounting frame; 1402. handle; 1403. drag plate; 1404. positioning pin; 1405. linear bearing; 1406. reset spring; 15. cross arm body. DETAILED DESCRIPTION

[0027] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] See also Figure 1-6The utility model provides a technical solution: a cross-arm automatic welding device, including a manipulator 2, a welding machine 1 installed on the rear side of the manipulator 2, a wire shearing machine 3 installed on the left side of the manipulator 2, a welding gun 4 installed on the mobile end of the manipulator 2 and connected to the welding machine 1, and a cross-arm body 15. A first welding frame 5 is installed on the right side of the manipulator 2, and a second welding frame 6 is installed on the front side of the manipulator 2. The first welding frame 5 and the second welding frame 6 have the same structure.

[0029] A placement rack 7 is fixed to the top of the first welding frame 5, and a first clamping mechanism 8 is installed at one end of the top of the first welding frame 5 near the placement rack 7, and a second clamping mechanism 9 is installed at the other end of the top of the first welding frame 5 near the placement rack 7. The first hanging plate station 10 and the second hanging plate station 11 are respectively installed on the top of the first welding frame 5 near both sides of the placement rack 7 and between the first clamping mechanism 8 and the second clamping mechanism 9. A first clamping mechanism 12 is installed on one side of the top of the first welding frame 5 near the first hanging plate station 10, and a second clamping mechanism 13 is installed on the side of the top of the first welding frame 5 near the second hanging plate station 11. An arc-shaped pressing plate mechanism 14 is installed at the end of the top of the first welding frame 5 away from the placement rack 7, and the cross arm body 15 consists of a main frame, two hanging plates and an arc plate, which realizes welding at two stations, which is beneficial to improving welding efficiency.

[0030] The first clamping mechanism 8 and the second clamping mechanism 9 are both composed of a clamping cylinder and a clamping rod, and the first hanging plate station 10 and the second hanging plate station 11 are both composed of a lifting cylinder and a positioning plate. The first clamping mechanism 8 cooperates with the first hanging plate station 10, and the pin shaft at the top of the positioning plate of the first hanging plate station 10 cooperates with a hanging plate through groove of the cross arm body 15. The second clamping mechanism 9 cooperates with the second hanging plate station 11, and the pin shaft at the top of the positioning plate of the second hanging plate station 11 cooperates with another hanging plate through groove of the cross arm body 15, which facilitates the positioning of the two hanging plates of the cross arm body 15.

[0031] The first clamping mechanism 12 and the second clamping mechanism 13 have the same structure. The first clamping mechanism 12 includes a clamping cylinder 1201 and a linear guide rail 1202 fixed to the inner wall of the first welding frame 5. The movable end of the clamping cylinder 1201 is fixed with a slide 1203 connected to the linear guide rail 1202. The outer wall of the slide 1203 is connected with two movable rods 1204 distributed in a "V" shape. The tops of the two movable rods 1204 pass through the outer wall of the first welding frame 5 and are connected with a movable clamp 1205 rotatably connected to the first welding frame 5, which facilitates the positioning of the main frame of the crossarm body 15.

[0032] The arc-shaped pressure plate mechanism 14 includes a mounting frame 1401, the outer wall of the mounting frame 1401 is rotatably connected to a handle 1402 through a bearing, the outer wall of the handle 1402 is connected to a drag plate 1403 through a slider, and the outer wall of the drag plate 1403 is provided with a positioning pin 1404. The four corners of the mounting frame 1401 are all provided with linear bearings 1405, and one end of the linear bearing 1405 is connected to a return spring 1406 connected to the drag plate 1403 through a sliding shaft. The bottom of the movable rod 1204 is connected to the slide plate 1203 through an axis. The movable rod 1204 is rotatably connected to the movable clamp 1205 through an axis. Two groups of mounting holes are symmetrically distributed on the bottom of the mounting frame 1401. Both mounting holes are evenly spaced. The drag plate 1403 forms a telescopic structure with the mounting frame 1401 through a reset spring 1406, and the drag plate 1403 is slidably connected to the handle 1402 through a slider. The positioning pin 1404 cooperates with the through groove on the arc plate of the cross arm body 15, which facilitates the positioning of the arc plate of the cross arm body 15.

[0033] When in use, first place the main frame of the cross arm body 15 on the outer wall of the placement frame 7, and then start the clamping cylinder 1201, so that the clamping cylinder 1201 drives the slide 1203 to slide under the guidance of the linear guide rail 1202, so that the slide 1203 drives the two movable rods 1204 to rotate back to back, and the two movable rods 1204 drive the tops of the two movable clamps 1205 to rotate toward each other, so that the movable clamps 1205 position the main frame of the cross arm body 15, and the main frame of the cross arm body 15 maintains center alignment after positioning, thereby improving the welding accuracy.

[0034] Then, the first hanging plate station 10 and the second hanging plate station 11 are started to drive the two positioning plates to rise, and then the two hanging plates are placed on the pins on the top of the two positioning plates respectively, and the first clamping mechanism 8 and the second clamping mechanism 9 are started to drive the two clamping rods to descend and position the two hanging plates.

[0035] Then, the handle 1402 is rotated, so that the handle 1402 drives the slide plate 1403 to slide under the guidance of the linear bearing 1405 through the slider, and the slide plate 1403 drives the return spring 1406 to be compressed, and then the arc plate is installed to the outer wall of the positioning pin 1404 through the through groove. Then, the handle 1402 is released, so that the return spring 1406 drives the slide plate 1403 to return and slide, so that the slide plate 1403 drives the arc plate to slide through the positioning pin 1404 and then is connected to the main frame.

[0036] Finally, the manipulator 2 is started, so that the manipulator 2 drives the welding gun 4 to move, and the two hanging plates and one arc plate in the cross-arm body 15 can be welded to the main frame, thereby completing a series of welding work, realizing semi-automatic welding, and improving the convenience of welding. At the same time, when the first welding frame 5 is welding, the worker can assemble the cross-arm body 15 on the second welding frame 6, thereby realizing cycle welding and improving welding efficiency.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0038] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cross-arm automatic welding device, comprising a manipulator (2), a welding machine (1) mounted on the rear side of the manipulator (2), a wire shear (3) mounted on the left side of the manipulator (2), a welding gun (4) mounted on the mobile end of the manipulator (2) and connected to the welding machine (1), and a cross-arm body (15), characterized in that: A first welding frame (5) is installed on the right side of the manipulator (2), and a second welding frame (6) is installed on the front side of the manipulator (2), and the first welding frame (5) and the second welding frame (6) have the same structure; A placement rack (7) is fixed on the top of the first welding frame (5), a first pressing mechanism (8) is installed on one end of the top of the first welding frame (5) close to the placement rack (7), a second pressing mechanism (9) is installed on the other end of the top of the first welding frame (5) close to the placement rack (7), a first hanging plate station (10) and a second hanging plate station (11) are installed on the top of the first welding frame (5) close to both sides of the placement rack (7) and located between the first pressing mechanism (8) and the second pressing mechanism (9), a first clamping mechanism (12) is installed on one side of the top of the first welding frame (5) close to the first hanging plate station (10), a second clamping mechanism (13) is installed on one side of the top of the first welding frame (5) close to the second hanging plate station (11), an arc-shaped pressing plate mechanism (14) is installed on the end of the top of the first welding frame (5) away from the placement rack (7), and the cross arm body (15) consists of a main frame, two hanging plates and an arc-shaped plate. The first pressing mechanism (8) and the second pressing mechanism (9) are both composed of a pressing cylinder and a pressing rod; The first plate hanging station (10) and the second plate hanging station (11) are both composed of a lifting cylinder and a positioning plate; The first clamping mechanism (12) and the second clamping mechanism (13) have the same structure. The first clamping mechanism (12) comprises a clamping cylinder (1201) and a linear guide rail (1202) fixed to the inner wall of the first welding frame (5). A slide plate (1203) connected to the linear guide rail (1202) is fixed to the movable end of the clamping cylinder (1201). Two movable rods (1204) distributed in a "V" shape are connected to the outer wall of the slide plate (1203). The tops of the two movable rods (1204) pass through the outer wall of the first welding frame (5) and are connected to movable clamps (1205) rotatably connected to the first welding frame (5). The arc-shaped pressure plate mechanism (14) comprises a mounting frame (1401), the outer wall of the mounting frame (1401) is rotatably connected to a handle (1402) via a bearing, the outer wall of the handle (1402) is connected to a carriage (1403) via a slider, the outer wall of the carriage (1403) is provided with a positioning pin (1404), and the four corners of the mounting frame (1401) are all provided with linear bearings (1405), and one end of the linear bearing (1405) is connected to a return spring (1406) connected to the carriage (1403) via a sliding shaft.

2. The crossarm automatic welding device according to claim 1, characterized in that: The first pressing mechanism (8) cooperates with the first plate hanging station (10), and the pin shaft at the top of the positioning plate of the first plate hanging station (10) cooperates with a plate hanging slot of the cross arm body (15).

3. The crossarm automatic welding device according to claim 1, characterized in that: The second pressing mechanism (9) cooperates with the second hanging plate station (11), and the pin shaft at the top of the positioning plate of the second hanging plate station (11) cooperates with another hanging plate through groove of the cross arm body (15).

4. The crossarm automatic welding device according to claim 1, characterized in that: The bottom of the movable rod (1204) is rotatably connected to the slide plate (1203) via a shaft, and the top of the movable rod (1204) is rotatably connected to the movable clamp (1205) via a shaft.

5. The crossarm automatic welding device according to claim 1, characterized in that: The bottom of the mounting frame (1401) is symmetrically provided with two groups of mounting holes, and both mounting holes are provided with a plurality of holes distributed at equal intervals.

6. The crossarm automatic welding device according to claim 1, characterized in that: The drag plate (1403) forms a telescopic structure with the mounting frame (1401) via a return spring (1406), and the drag plate (1403) is slidably connected to the handle (1402) via a slider.

7. The crossarm automatic welding device according to claim 1, characterized in that: The positioning pin (1404) cooperates with the through groove on the arc-shaped plate of the cross arm body (15).

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