Automatic contact welding device for metal wires

Abstract

The utility model discloses an automatic contact welding device for metal wires, which comprises a main body frame, limiting assemblies arranged in pairs are arranged in the main body frame, each limiting assembly comprises a first elastic piece and limiting pieces arranged in pairs, and the limiting pieces are rotatably connected with the main body frame; a push rod rotationally connected with the main body frame is arranged on the side face of the main body frame, a push block is arranged between the push rod and the limiting piece, and the limiting piece rotates relative to the main body frame when the push rod drives the push block to move; a guide limiting assembly is arranged between the two limiting assemblies and comprises a sliding part capable of sliding relative to the main body frame; a welding assembly is arranged in the main body frame and comprises a welding head capable of ascending and descending relative to the main body frame. Wire rods are fixed through the limiting assembly and inserted through cooperation of the guiding and limiting assembly, the positioning effect is good, and the welding position is accurate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding technical field, concretely relates to a kind of metal wire rod automatic head welding device. BACKGROUND

[0002] Aluminum wire rod usually needs to be welded for use, usually adopts welding device to weld two aluminum wire rods together;The patent document with the public number CN108406034A discloses a wire rod welding device in the prior art, including machine table and mobile seat, the top of the machine table is equipped with limiting cavity, and the inside of the limiting cavity is movably installed with lifting platform, the top of the lifting platform is equipped with sliding slot on both sides, the bottom of the mobile seat is equipped with sliding block corresponding in size with sliding slot on both sides, the top of the mobile seat is equipped with mounting groove, the mounting groove is fixedly installed with guide pillar, and the surface of the guide pillar is slidably connected with support platform, the inside of the mounting groove is rotatably connected with lead screw penetrating support platform by rolling bearing, the rear end of the top of the support platform is welded with mounting bracket, and the top of the mounting bracket is fixedly installed with cylinder body, the output shaft of the cylinder body is fixedly connected with pressing plate penetrating mounting bracket. The existing welding device adjusts the spacing of support platform through lead screw, and the adjustment position is not easy to control and the degree of automation is low;The wire rod is fixed by cylinder and pressing plate, and the fixing effect is poor;Therefore, a kind of metal wire rod automatic head welding device is needed to overcome the above difficulties. SUMMARY

[0003] The utility model discloses in view of prior art existing problem, designs a kind of metal wire rod automatic head welding device, the utility model is fixed wire rod by limiting component, and wire rod is inserted by guiding limiting component cooperation, and positioning effect is good and welding position is accurate.

[0004] The utility model discloses a kind of metal wire rod automatic head welding device, including main frame, the main frame is equipped with the limiting component being set up in pairs, the limiting component includes first elastic member and the limiting piece being set up in pairs, the limiting piece is rotatably connected with main frame;The side of the main frame is equipped with the push rod being rotatably connected with it, and the push rod and the limiting piece are equipped with push block, when push block moves, limiting piece rotates relative to main frame by push rod;Guiding limiting component is equipped between the two limiting components, and guiding limiting component includes the sliding member that can slide relative to main frame;The inside of the main frame is equipped with welding assembly, and welding assembly includes the welding head that can lift relative to main frame.

[0005] As preferred, the limiting component further comprises a second elastic member, the limiting member is a columnar body, and the limiting member is rotationally connected with the main body frame; the main body frame is internally provided with an open slot, the push block is slidingly installed in the open slot, and a second elastic member is arranged between the push block and the inner wall of the open slot; the bottom of the limiting member is provided with an installation plate which rotates synchronously with the limiting member, and a first elastic member is arranged between the installation plate and the inner wall of the open slot; the push rod is provided with a protruding portion, and the protruding portion is arranged towards the push block.

[0006] As preferred, the bottom of the limiting member is provided with a rotating shaft which extends into the open slot; the rotating shaft is provided with an installation plate fixedly connected therewith, and the installation plate is provided with a first contact point; the end of the push block which is arranged towards the installation plate is provided with a second contact point, and the second contact point is arranged towards the first contact point.

[0007] As preferred, the first contact point is arranged away from the rotating shaft; the inside of the open slot is provided with a first limiting column, a first elastic member is arranged between the first limiting column and the installation plate, one end of the first elastic member is sleeved on the first limiting column, and the other end of the first elastic member is fixedly installed on the installation plate; a second elastic member is arranged between the open slot and the push block, the push block is provided with a second limiting column, one end of the second elastic member is fixedly installed on the second limiting column, and the other end of the second elastic member abuts against the open slot; the open slot is provided with a first step, the end of the push block which is arranged away from the second elastic member is arranged adjacent to the first step; and in the default state, the edge of the push block abuts against the first step.

[0008] As preferred, the push rod is rotationally connected with the main body frame; the push block is provided with an inner recess, and the protruding portion is arranged towards the inner recess.

[0009] As preferred, the outer wall of the limiting member is provided with a plurality of strip-shaped protrusions which are uniformly distributed, and the strip-shaped protrusions are arranged perpendicularly to the open slot.

[0010] The edge of the push block abuts against the first step in the default state, the first elastic member and the second elastic member are both in the compressed state, and the two limit members are in the state of approaching each other at this time. Since the rotating shaft and the limit members are eccentrically arranged, when the two limit members rotate relative to each other, the limit members will move away from each other, so that a gap will exist between the limit members, thereby facilitating the insertion of the wire to be welded. When the wire needs to be welded, the push block is moved into the opening groove by the push rod, so that the second contact on the push block will press the first contact on the mounting plate, and then the mounting plate will rotate. At this time, the first elastic member and the second elastic member are further pressed. When the mounting plate rotates, the limit members will rotate synchronously, and a gap will be generated between the two limit members, so that the wire can be inserted into the main frame. After the wire is inserted, the push rod is loosened, so that the push block is automatically reset to the initial state under the action of the second elastic member; at the same time, the two limit members are automatically reset under the action of the first elastic member; after the two limit members rotate, they approach each other, thereby clamping the wire between the two limit members. Since the limit member is provided with a strip-shaped protrusion, the friction is increased, and the clamping effect is better; the inner recess and the protruding part cooperate with each other, thereby facilitating the movement of the push block driven by the push rod.

[0011] As a preferred, the guide limiting assembly further comprises a first air cylinder and a baffle; the main frame is provided with a placing groove, the placing groove is provided with a first air cylinder, and the first air cylinder is installed at the bottom of the sliding member; the sliding member is in sliding connection with the main frame, and the piston shaft of the first air cylinder is fixedly connected with the sliding member; the end of the sliding member is provided with a blocking strip, and the blocking strip is arranged adjacent to the outer wall of the main frame; the end of the sliding member facing the welding head is provided with a wire insertion groove for inserting products, and the sliding member is provided with a baffle in sliding connection therewith.

[0012] As a preferred, the sliding member is provided with a strip-shaped groove, and the strip-shaped groove is provided with a baffle; the baffle is arranged perpendicular to the wire insertion groove, and the profile of the strip-shaped groove and the profile of the baffle are matched with each other.

[0013] Before inserting the wire, the guide limiting assembly is opened in advance, so that the two sliding members approach each other; the first air cylinder can drive the sliding member to move relative to the main frame when the first air cylinder is working; when the sliding members approach each other, the wire insertion grooves on the two sliding members can guide the wire, thereby facilitating the insertion of the wire; the strip-shaped groove is arranged on the sliding member, and the baffle is arranged in the strip-shaped groove, so that the insertion position of the wire is controlled by the baffle; when the wire contacts the baffle, the wire is inserted in place at this time; since the thickness of the baffle is thin, the distance between the two wires is small after being fixed by the limiting assembly, thereby facilitating the welding operation of the subsequent welding assembly. After the wire is inserted in place, the baffle is removed, so that the welding operation can be performed.

[0014] As preferred, a welding assembly is arranged between the two sliding members; the welding assembly further comprises a cylinder bracket and a second cylinder; the cylinder bracket is mounted on the bottom of the main frame, and the second cylinder is arranged in the cylinder bracket; a welding head is arranged on the piston shaft of the second cylinder, and the welding head is arranged below the bottom of the sliding member when the second cylinder is in a retracted state.

[0015] By default, the welding head is in a retracted state, so that the welding head does not interfere with the sliding member; after the wire is fixed, the second cylinder controls the welding head to extend, thereby welding the two wire sections; after welding, the second cylinder controls the welding head to retract.

[0016] Compared with the prior art, the utility model has the advantages that: 1. the push rod drives the push block to move, the push block drives the limiting piece to rotate, so that the limiting pieces can approach and move away from each other, facilitating clamping and loosening the wire; 2. the first elastic member is arranged between the limiting piece and the main frame, so that the limiting piece can be automatically reset, thereby reliably clamping the wire; 3. the wire is limited and guided by the guide limiting assembly, so that the wire is conveniently inserted; meanwhile, the wire in the welding process is positioned, the welding position is more accurate, and the welding effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2 It is a perspective view of the utility model from another angle;

[0019] Figure 3 It is an exploded view of the utility model;

[0020] Figure 4 It is an internal structure view of the utility model;

[0021] Figure 5 It is an internal structure view of the utility model from another angle;

[0022] Figure 6 It is an exploded view of the utility model after half-sectioning;

[0023] Figure 7 It is an internal structure view of the main frame;

[0024] Figure 8 It is a perspective view of the sliding member;

[0025] Figure 9 It is a perspective view of the limiting piece;

[0026] Figure 10 It is a perspective view of the push block;

[0027] Marked in the figure: 1, the main frame; 2, the limiting component; 21, the first elastic piece; 22, the limiting piece; 23, the second elastic piece; 24, the mounting plate; 25, the rotating shaft; 26, the first contact; 27, the strip-shaped protrusion; 3, the push rod; 31, the protruding part; 4, the push block; 41, the second contact; 42, the second limiting column; 43, the inner recess; 5, the guiding limiting component; 51, the sliding piece; 52, the first air cylinder; 53, the baffle; 54, the blocking strip; 55, the wire groove; 56, the strip-shaped groove; 6, the welding component; 61, the welding head; 62, the air cylinder support; 63, the second air cylinder; 7, the open groove; 8, the first limiting column; 9, the first step; 10, the placing groove. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the embodiments shown in the drawings:

[0029] As Figures 1 to 10 shown, the embodiment discloses a metal wire automatic head welding device, including the main frame 1, the main frame 1 is equipped with the limiting component 2 who sets up in pairs, the limiting component 2 includes the first elastic piece 21 and the limiting piece 22 who sets up in pairs, the limiting piece 22 is rotatably connected with the main frame 1, the side of the main frame 1 is equipped with the push rod 3 rotatably connected with it, and the push rod 3 and the limiting piece 22 are equipped with the push block 4, when the push rod 3 drives the push block 4 to move, the limiting piece 22 rotates relative to the main frame 1, and the guiding limiting component 5 is equipped between the two limiting components 2, and the guiding limiting component 5 includes the sliding piece 51 that can slide relative to the main frame 1, the inside of the main frame 1 is equipped with the welding component 6, and the welding component 6 includes the welding head 61 that can lift relative to the main frame 1.

[0030] The limiting component 2 further comprises a second elastic member 23, the limiting member 22 is a columnar body, and the limiting member 22 is rotationally connected with the main body frame 1; the main body frame 1 is provided with an open slot 7, the push block 4 is slidingly installed in the open slot 7, and the second elastic member 23 is arranged between the push block 4 and the inner wall of the open slot 7; the bottom of the limiting member 22 is provided with an installation plate 24 which rotates synchronously with the limiting member 22, and the first elastic member 21 is arranged between the installation plate 24 and the inner wall of the open slot 7; the push rod 3 is provided with a protruding portion 31, and the protruding portion 31 is arranged towards the push block 4. The bottom of the limiting member 22 is provided with a rotating shaft 25 which extends into the open slot 7; the rotating shaft 25 is provided with the installation plate 24 which is fixedly connected with the rotating shaft 25, and the installation plate 24 is provided with a first contact point 26; the end of the push block 4 which is arranged towards the installation plate 24 is provided with a second contact point 41, and the second contact point 41 is arranged towards the first contact point 26. The first contact point 26 is arranged away from the rotating shaft 25; the inside of the open slot 7 is provided with a first limiting column 8, the first elastic member 21 is arranged between the first limiting column 8 and the installation plate 24, one end of the first elastic member 21 is sleeved on the first limiting column 8, and the other end of the first elastic member 21 is fixedly installed on the installation plate 24; the second elastic member 23 is arranged between the open slot 7 and the push block 4, the push block 4 is provided with a second limiting column 42, one end of the second elastic member 23 is fixedly installed on the second limiting column 42, and the second elastic member 23 abuts against the open slot 7; the open slot 7 is provided with a first step 9, and the end of the push block 4 which is opposite to the second elastic member 23 is arranged adjacent to the first step 9; in the default state, the edge of the push block 4 abuts against the first step 9. The push rod 3 is rotationally connected with the main body frame 1; the push block 4 is provided with an inner recess 43, and the protruding portion 31 is arranged towards the inner recess 43. The outer wall of the limiting member 22 is provided with a plurality of strip-shaped protrusions 27 which are uniformly distributed, and the strip-shaped protrusions 27 are arranged perpendicular to the open slot 7.

[0031] The guide limiting assembly 5 further comprises a first air cylinder 52 and a baffle 53; the main body frame 1 is provided with a placing groove 10, the placing groove 10 is provided with the first air cylinder 52, the first air cylinder 52 is installed at the bottom of the sliding piece 51; the sliding piece 51 is in sliding connection with the main body frame 1, the piston shaft of the first air cylinder 52 is fixedly connected with the sliding piece 51; the sliding piece 51 is provided with a baffle 53 at the end, the baffle 53 is arranged adjacent to the outer wall of the main body frame 1; the end of the sliding piece 51 towards the welding head 61 is provided with a wire slot 55 for inserting the product, the sliding piece 51 is provided with the baffle 53 in sliding connection therewith; the sliding piece 51 is provided with a strip-shaped groove 56, the strip-shaped groove 56 is provided with the baffle 53; the baffle 53 and the wire slot 55 are arranged perpendicularly to each other, the profile of the strip-shaped groove 56 and the profile of the baffle 53 are adapted to each other. The welding assembly 6 is arranged between the two sliding pieces 51; the welding assembly 6 further comprises an air cylinder bracket 62 and a second air cylinder 63; the air cylinder bracket 62 is installed at the bottom of the main body frame 1, the air cylinder bracket 62 is provided with the second air cylinder 63; the welding head 61 is arranged on the piston shaft of the second air cylinder 63, the welding head 61 is arranged below the bottom of the sliding piece 51 when the second air cylinder 63 is in a contracted state.

[0032] The specific operation process of the embodiment is as follows, before the wire is inserted, the guide limiting assembly 5 is opened in advance, so that the two sliding pieces 51 are close to each other; the first air cylinder 52 can drive the sliding piece 51 to move relative to the main body frame 1 when the first air cylinder 52 works; when the sliding pieces 51 are close to each other, the wire slots 55 on the two sliding pieces 51 can guide the wire, which facilitates the insertion of the wire; the strip-shaped groove 56 is arranged on the sliding piece 51, the baffle 53 is arranged in the strip-shaped groove 56, so that the insertion position of the wire is controlled by the baffle 53; when the wire contacts the baffle 53, the wire is inserted in place; since the thickness of the baffle 53 is thin, the distance between the two wires fixed by the limiting assembly 2 is small, which facilitates the welding operation of the subsequent welding assembly 6. After the wire is inserted in place, the baffle 53 is removed, so that the welding operation can be performed.

[0033] The edge of the push block 4 abuts against the first step 9 in the default initial state, and the first elastic member 21 and the second elastic member 23 are both in the compressed state, at which time the two limit members 22 are in the state of approaching each other. Since the rotating shaft 25 is eccentrically arranged with the limit members 22, when the two limit members 22 rotate relative to each other, the limit members 22 will move away from each other, so that a gap will exist between the limit members 22, thereby facilitating the threading of the wire to be welded. When the wire needs to be welded, the push block 4 is moved into the opening slot 7 by the push rod 3, so that the second contact 41 on the push block 4 will press the first contact 26 on the mounting plate 24, and then the mounting plate 24 will rotate. At this time, the first elastic member 21 and the second elastic member 23 are further pressed. When the mounting plate 24 rotates, the limit members 22 will rotate synchronously, and a gap will be generated between the two limit members 22, so that the wire can be threaded into the main frame 1. After the threading of the wire is completed, the push rod 3 is loosened, so that the push block 4 is automatically reset to the initial state under the action of the second elastic member 23; at the same time, the two limit members 22 are automatically reset under the action of the first elastic member 21; after the rotation of the two limit members 22, the limit members 22 approach each other, thereby clamping the wire between the two limit members 22. Since the limit members 22 are provided with the strip-shaped protrusions 27, the friction force is increased, and the clamping effect is better; the inner recess 43 and the protruding portion 31 are matched with each other, thereby facilitating the movement of the push block 4 driven by the push rod 3.

[0034] In the default state, the welding head 61 is in the retracted state, so that the welding head 61 will not interfere with the sliding member 51; after the wire is fixed, the second cylinder 63 controls the welding head 61 to extend, thereby welding the two wire sections; after the welding is completed, the second cylinder 63 controls the welding head 61 to retract. At this time, the welding is completed, and the push block 4 is pushed again by the push rod 3, so that the limit members 22 rotate to loosen the wire, so that the wire can be taken out of the main frame 1.

[0035] The specific embodiments described in the present application are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A device for automatic butt welding of metal wire rods, comprising a main frame (1), characterized in that, The main frame (1) is internally provided with a pair of limiting assemblies (2), the limiting assembly (2) comprises a first elastic member (21) and a pair of limiting members (22), the limiting member (22) is rotatably connected with the main frame (1); the side surface of the main frame (1) is provided with a push rod (3) rotatably connected therewith, a push block (4) is arranged between the push rod (3) and the limiting member (22), when the push rod (3) drives the push block (4) to move, the limiting member (22) rotates relative to the main frame (1); a guide limiting assembly (5) is arranged between the two limiting assemblies (2), the guide limiting assembly (5) comprises a sliding member (51) capable of sliding relative to the main frame (1); the inside of the main frame (1) is provided with a welding assembly (6), the welding assembly (6) comprises a welding head (61) capable of lifting relative to the main frame (1).

2. The automatic wire butt welding apparatus of claim 1, wherein The limiting assembly (2) further comprises a second elastic member (23), the limiting member (22) is a columnar body, the limiting member (22) is rotatably connected with the main frame (1); the main frame (1) is internally provided with an open slot (7), the push block (4) is slidably arranged in the open slot (7), the second elastic member (23) is arranged between the push block (4) and the inner wall of the open slot (7); the bottom of the limiting member (22) is provided with a mounting plate (24) synchronously rotating therewith, the first elastic member (21) is arranged between the mounting plate (24) and the inner wall of the open slot (7); the push rod (3) is provided with a protruding portion (31), the protruding portion (31) is arranged towards the push block (4).

3. The automatic wire butt welding apparatus of claim 2, wherein The bottom of the limiting member (22) is provided with a rotating shaft (25), the rotating shaft (25) extends into the inside of the open slot (7); the rotating shaft (25) is provided with the mounting plate (24) fixedly connected therewith, the mounting plate (24) is provided with a first contact point (26); the end of the push block (4) towards the mounting plate (24) is provided with a second contact point (41), the second contact point (41) is arranged towards the first contact point (26).

4. The automatic wire butt welding apparatus of claim 3, wherein The first contact point (26) is arranged away from the rotating shaft (25); the inside of the open slot (7) is provided with a first limiting column (8), the first elastic member (21) is arranged between the first limiting column (8) and the mounting plate (24), one end of the first elastic member (21) is sleeved and arranged on the first limiting column (8), the other end of the first elastic member (21) is fixedly arranged on the mounting plate (24); the second elastic member (23) is arranged between the open slot (7) and the push block (4), the push block (4) is provided with a second limiting (42) column, one end of the second elastic member (23) is fixedly arranged on the second limiting (42) column, the second elastic member (23) abuts against the open slot (7); the open slot (7) is provided with a first step (9), the end of the push block (4) away from the second elastic member (23) is arranged adjacent to the first step (9); in the default state, the edge of the push block (4) abuts against the first step (9).

5. The automatic wire butt welding apparatus of claim 2, wherein The push rod (3) is rotationally connected with the main body frame (1); the push block (4) is provided with an inner recess (43), and the protruding part (31) is arranged towards the inner recess (43).

6. The automatic wire butt welding apparatus of claim 2, wherein The outer wall of the limiting piece (22) is provided with a plurality of evenly distributed strip-shaped protrusions (27), and the strip-shaped protrusions (27) are arranged perpendicularly to the opening groove (7).

7. The automatic wire butt welding apparatus of claim 1, wherein The guide limiting assembly (5) further comprises a first air cylinder (52) and a baffle (53); the main body frame (1) is provided with a placing groove (10), the placing groove (10) is provided with the first air cylinder (52), the first air cylinder (52) is installed at the bottom of the sliding piece (51); the sliding piece (51) is slidingly connected with the main body frame (1), the piston shaft of the first air cylinder (52) is fixedly connected with the sliding piece (51); the distal end of the sliding piece (51) is provided with a blocking strip (54), the blocking strip (54) is arranged adjacent to the outer wall of the main body frame (1); the end of the sliding piece (51) towards the welding head (61) is provided with a wire slot (55) for inserting a product, and the sliding piece (51) is provided with the baffle (53) slidingly connected therewith.

8. The metal wire automatic butt welding apparatus according to claim 7, wherein The sliding piece (51) is provided with a strip-shaped groove (56), and the strip-shaped groove (56) is provided with the baffle (53); the baffle (53) and the wire slot (55) are arranged perpendicularly to each other, and the profile of the strip-shaped groove (56) and the profile of the baffle (53) are adapted to each other.

9. The automatic wire butt welding apparatus of claim 1, wherein The welding assembly (6) is arranged between the two sliding pieces (51); the welding assembly (6) further comprises a cylinder support (62) and a second air cylinder (63); the cylinder support (62) is installed at the bottom of the main body frame (1), and the cylinder support (62) is provided with the second air cylinder (63); the welding head (61) is arranged on the piston shaft of the second air cylinder (63), and the welding head (61) is arranged below the bottom of the sliding piece (51) when the second air cylinder (63) is in a contracted state.

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