Automatic welding robot structure for machining metal products

Abstract

The utility model relates to the technical field of welding robots, in particular to an automatic welding robot structure for processing metal products, which comprises a mechanical arm, a plurality of connecting pieces arranged outside the mechanical arm, auxiliary components arranged inside the connecting pieces and used for temporarily supplementing lubricating liquid, and the auxiliary components comprise mounting frames arranged on the outer walls of the connecting pieces. An air chamber is arranged at the bottom of the mounting frame; a positioning groove is formed in the inner wall of the connecting piece. A sleeve shaft, a sleeve ring and a connecting shaft are sequentially arranged in the positioning groove in an overlapped mode. A through groove is formed in the sleeve shaft, a plurality of clamping grooves and liquid injection grooves are formed in the inner wall of the sleeve shaft, and baffles are arranged on the inner walls of the liquid injection grooves; a plurality of cavities are formed in the outer wall of the lantern ring, and through pipes are arranged in the multiple cavities. When the joint of the mechanical arm is rubbed, the lubricating agent is supplemented in a linkage mode for temporary lubrication, the service life of lubrication is prolonged, the friction probability of the joint of the mechanical arm is reduced, and abrasion is prevented from being increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding robot technical field, concretely is a kind of automatic welding robot structure for processing metal products. BACKGROUND

[0002] Automatic welding robot is more and more widely used in the field of metal product processing, and their main advantages include improving welding quality, production efficiency, reducing cost, and reducing labor intensity and risk of workers.

[0003] But at present, in the running process of welding robot in prior art, the joint of mechanical arm is generally in motion state for a long time, so that the lubricating liquid is consumed greatly, when the lubricating liquid is not timely supplemented, friction will be generated when the joint of mechanical arm is in motion, which causes abrasion or failure to the parts at joint, and affects the normal operation of mechanical arm. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of automatic welding robot structure for processing metal products to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of automatic welding robot structure for processing metal products, including mechanical arm, the mechanical arm outside is provided with multiple connecting pieces, the connecting piece inside is provided with the auxiliary assembly for temporarily supplementing lubricating liquid, the auxiliary assembly includes the installation frame being arranged in the connecting piece outer wall, the installation frame bottom is provided with air chamber;

[0007] The connecting piece inner wall is provided with positioning groove, the positioning groove inside is sequentially stacked with sleeve shaft, sleeve ring and connecting shaft;

[0008] The sleeve shaft inside is provided with through slot, the sleeve shaft inner wall is provided with multiple clamping grooves and liquid injection groove, the liquid injection groove inner wall is provided with baffle;

[0009] The sleeve ring outer wall is provided with multiple cavities, multiple the cavity inside is provided with pipe.

[0010] As the preferred scheme of the utility model, multiple the connecting piece is respectively installed in multiple connecting points of mechanical arm, and is coaxially connected with the support rod of mechanical arm by the connecting shaft inside connecting piece, and the connecting shaft is rotationally connected with positioning groove.

[0011] As the preferred scheme of the utility model, the installation frame is connected with the outer wall of connecting piece by bolt, the installation frame bottom is integrally formed with air chamber, the installation frame inside is loaded with lubricating liquid, the air chamber inside is loaded with air pressure and is communicated with installation frame by one-way valve.

[0012] As the preferred scheme of the utility model, the top of the mounting frame is communicated with the through slot inside the sleeve shaft, and the lubricating liquid in the mounting frame is injected into the through slot of the sleeve shaft through the air pressure in the air chamber.

[0013] As the preferred scheme of the utility model, the sleeve shaft is located inside the positioning groove and is coaxially connected with the inner wall of the positioning groove, the plurality of injection grooves and clamping grooves are annularly distributed on the inner wall of the sleeve shaft and are staggered, the plurality of injection grooves are communicated with the through slot, and the baffle is located on the inner wall of the injection groove and is rotationally connected with the inner wall of the injection groove through the spring shaft.

[0014] As the preferred scheme of the utility model, the inner wall of the sleeve ring is rotationally connected with the connecting shaft, and the outer wall is rotationally connected with the sleeve shaft through the bearing, the plurality of cavities are annularly distributed in the sleeve ring and penetrate through the sleeve ring, the through pipe is located in the cavity and is slidingly connected with the inner wall of the cavity, and one end of the through pipe is a conical structure and extends into the clamping groove in the inner wall of the sleeve shaft.

[0015] Compared with the prior art, the utility model has the beneficial effects that: aiming at the problems in the background art, the application adopts an auxiliary assembly, a double-layer clamping sleeve is arranged in the connecting piece, when the lubricating effect of the connecting shaft is lost, the connecting shaft is rubbed with the first layer of sleeve ring, so that the sleeve ring is driven to rotate in the outer sleeve shaft, the through pipe outside the sleeve ring is moved from the clamping groove to the injection groove, the lubricating liquid in the mounting frame is injected into the through slot of the sleeve shaft through the air pressure of the air chamber, and is injected into the gap between the sleeve ring and the connecting shaft through the injection groove and the sleeve pipe, so that the lubricating liquid is temporarily supplemented, the dynamic effect of the mechanical arm is ensured, the wear of the connecting piece of the mechanical arm is reduced, and the service life and the lubricating effect duration of the connecting piece of the mechanical arm are improved.

[0016] The utility model realizes that when the joint of the mechanical arm appears friction, the lubricant is supplemented in linkage, temporary lubrication is used, the use duration of lubrication is improved, the probability of the joint friction of the mechanical arm is reduced, and the wear is avoided. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the mechanical arm structure diagram of the utility model;

[0018] Figure 2 It is the connecting piece appearance structure diagram of the utility model;

[0019] Figure 3 It is the connecting piece side sectional view of the utility model;

[0020] Figure 4 It is the A part enlarged view of the utility model.

[0021] In the figure: 1, mechanical arm; 2, connecting piece; 3, mounting frame; 301, air chamber; 4, positioning groove; 5, sleeve shaft; 501, through groove; 502, clamping groove; 6, liquid injection groove; 601, baffle; 7, sleeve ring; 8, cavity; 801, through pipe; 9, connecting shaft. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described below in connection with the embodiments of the utility model in a clear and complete manner. EMBODIMENT

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of automatic welding robot structure for processing metal product, including mechanical arm 1, the outside of the mechanical arm 1 is provided with multiple connecting pieces 2, connecting piece 2 is used to connect assembly at joint on mechanical arm 1, the inside of the connecting piece 2 is provided with the auxiliary assembly for temporarily supplementing lubricating liquid, the auxiliary assembly includes the mounting frame 3 of setting in the outer wall of connecting piece 2, the bottom of the mounting frame 3 is provided with air chamber 301, the inside of mounting frame 3 is used to load the lubricating liquid required for temporary supplement, gas in air chamber 301 can generate pressure and push lubricant in mounting frame 3 to top portion, and the top portion of mounting frame 3 is communicated with the through groove 501 in the inside of sleeve shaft 5 of connecting piece 2, and the lubricating liquid in mounting frame 3 can be injected into through groove 501 by the pressure in air chamber 301;

[0024] The inside of the connecting piece 2 is provided with positioning groove 4, for the position of connecting shaft 9 is positioned, the positioning groove 4 is sequentially overlapped and arranged with sleeve shaft 5, sleeve ring 7 and connecting shaft 9 in the inside;Sleeve shaft 5 and sleeve ring 7 are overlapped and set in the outside of connecting shaft 9, and make connecting shaft 9 rotate with double-layer structure,

[0025] The sleeve shaft 5 is internally provided with a through slot 501, the inner wall of the sleeve shaft 5 is provided with a plurality of clamping grooves 502 and a liquid injection groove 6, the clamping grooves 502 cooperate with the through pipes 801 outside the sleeve ring 7 to position the relative position between the sleeve shaft 5 and the sleeve ring 7, when the through pipes 801 outside the sleeve ring 7 are located in the liquid injection groove 6, the tapered head at the top of the through pipes 801 can push open the baffle 601 inside the liquid injection groove 6, and make the liquid injection groove 6 and the through pipes 801 through, so that the lubricating liquid can flow to the gap between the connecting shaft 9 and the sleeve ring 7, temporarily supplement the lubricating liquid, the inner wall of the liquid injection groove 6 is provided with a baffle 601, the baffle 601 can only rotate towards the direction close to the through slot 501, so that the one-way structure can be realized, and is used to isolate the liquid injection groove 6 and the through slot 501 in the normal state; the outer wall of the sleeve ring 7 is provided with a plurality of cavities 8 for positioning the position of the through pipes 801, and the springs inside the cavities 8 can support the through pipes 801, a plurality of the cavities 8 are internally provided with the through pipes 801; in the normal state, the connecting shaft 9 rotates in the positioning groove 4 and is separated from the sleeve ring 7 by the lubricating liquid to avoid contact, so that the mechanical arm moves, when the lubricating liquid loses the lubricating ability, the connecting shaft 9 will contact with the sleeve ring 7 when rotating, so as to generate friction, which can drive the sleeve ring 7 to rotate in the sleeve shaft 5.

[0026] All electrical elements in the embodiment are controlled by a conventional controller.

[0027] Embodiment, please refer to Figures 1-4, multiple connecting pieces 2 are respectively installed at multiple connecting points of the mechanical arm 1 and are coaxially connected with support rods of the mechanical arm 1 through connecting shafts 9 in the connecting pieces 2, the connecting shafts 9 are rotationally connected with the positioning grooves 4, the mounting frame 3 is connected with the outer wall of the connecting piece 2 through bolts, the bottom of the mounting frame 3 is integrally formed with an air chamber 301, the mounting frame 3 is loaded with lubricating liquid inside, the air chamber 301 is loaded with air pressure inside and is communicated with the mounting frame 3 through a one-way valve, the top of the mounting frame 3 is communicated with a through groove 501 inside a sleeve shaft 5, the lubricating liquid in the mounting frame 3 is injected into the through groove 501 in the sleeve shaft 5 through the air pressure in the air chamber 301, the sleeve shaft 5 is located inside the positioning groove 4 and is coaxially connected with the inner wall of the positioning groove 4, multiple injection grooves 6 and clamping grooves 502 are annularly distributed on the inner wall of the sleeve shaft 5 and are staggered, multiple injection grooves 6 are communicated with the through groove 501, the baffle 601 is located on the inner wall of the injection groove 6 and is rotationally connected with the inner wall of the injection groove 6 through a spring shaft, the inner wall of the sleeve ring 7 is rotationally connected with the connecting shaft 9, and the outer wall is rotationally connected with the sleeve shaft 5 through a bearing, multiple cavities 8 are annularly distributed in the sleeve ring 7 and penetrate through the sleeve ring 7, the through pipe 801 is located in the cavity 8 and is slidingly connected with the inner wall of the cavity 8, and one end of the through pipe 801 is a tapered structure and extends into the clamping groove 502 in the inner wall of the sleeve shaft 5.

[0028] The working process of the utility model is as follows: when the lubricating liquid at the connecting position of the mechanical arm 1 loses the effect, the connecting shaft 9 in the connecting piece 2 rotates in the positioning groove 4 and is in contact with the sleeve ring 7, drives the sleeve ring 7 to rotate in the sleeve shaft 5, the through pipe 801 on the outer wall of the sleeve ring 7 is retracted into the cavity 8 according to the arc angle and is extended and embedded in the injection groove 6 when the injection groove 6 area rotates, the tapered end of the through pipe 801 pushes open the baffle 601 in the injection groove 6, the through pipe 801 is communicated with the injection groove 6, the air pressure in the air chamber 301 pushes the lubricating liquid to flow through the through groove 501, penetrates through the through pipe 801 and the cavity 8 and is injected into the gap between the connecting shaft 9 and the sleeve ring 7 to supplement the lubricating liquid.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic welding robot structure for processing metal products, comprising a mechanical arm (1) provided externally with a plurality of connecting elements (2) provided internally with an auxiliary assembly for temporary replenishment of lubricating fluid, characterized in that: The auxiliary assembly comprises a mounting frame (3) arranged on the outer wall of the connecting piece (2), and the bottom of the mounting frame (3) is provided with an air chamber (301); The inner wall of the connecting piece (2) is provided with a positioning groove (4), and the inside of the positioning groove (4) is sequentially stacked with a sleeve shaft (5), a sleeve ring (7) and a connecting shaft (9); The inside of the sleeve shaft (5) is provided with a through groove (501), the inner wall of the sleeve shaft (5) is provided with a plurality of clamping grooves (502) and liquid injection grooves (6), and the inner wall of the liquid injection groove (6) is provided with a baffle (601); The outer wall of the sleeve ring (7) is provided with a plurality of cavities (8), and the inside of each of the cavities (8) is provided with a through pipe (801).

2. An automatic welding robot structure for processing metal products according to claim 1, characterized in that: A plurality of connecting pieces (2) are respectively arranged at a plurality of connecting points of the mechanical arm (1), and the connecting shaft (9) in the connecting piece (2) is coaxially connected with the supporting rod of the mechanical arm (1).

3. An automatic welding robot structure for processing metal products according to claim 1, characterized in that: The mounting frame (3) is connected with the outer wall of the connecting piece (2) through bolts, the bottom of the mounting frame (3) is integrally formed with the air chamber (301), the inside of the mounting frame (3) is loaded with lubricating liquid, and the inside of the air chamber (301) is loaded with air pressure and communicated with the mounting frame (3) through a one-way valve.

4. The automatic welding robot structure for processing a metal product according to claim 1, wherein: The top of the mounting frame (3) is communicated with the through groove (501) in the inside of the sleeve shaft (5), and the lubricating liquid in the mounting frame (3) is injected into the through groove (501) of the sleeve shaft (5) through the air pressure in the air chamber (301).

5. The automatic welding robot structure for processing a metal product according to claim 1, wherein: The sleeve shaft (5) is located in the positioning groove (4) and is coaxially connected with the inner wall of the positioning groove (4), a plurality of liquid injection grooves (6) and clamping grooves (502) are annularly distributed on the inner wall of the sleeve shaft (5) and are staggered, a plurality of liquid injection grooves (6) are communicated with the through groove (501), and the baffle (601) is located on the inner wall of the liquid injection groove (6) and is rotatably connected with the inner wall of the liquid injection groove (6) through a spring shaft.

6. The automatic welding robot structure for processing a metal product according to claim 1, wherein: The inner wall of the sleeve ring (7) is rotatably connected with the connecting shaft (9), the outer wall is rotatably connected with the sleeve shaft (5) through a bearing, a plurality of cavities (8) are annularly distributed in the sleeve ring (7) and penetrate through the sleeve ring (7), the through pipe (801) is located in the cavity (8) and is slidably connected with the inner wall of the cavity (8), and one end of the through pipe (801) is a tapered structure and extends into the clamping groove (502) on the inner wall of the sleeve shaft (5).

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