Steel ball connecting rod automatic welding equipment

Abstract

The present invention discloses an automatic welding device for steel ball connecting rods, comprising a frame, a feeding bin arranged on the frame and a welding device, wherein the welding device has a welding end, and the welding end can be driven to move back and forth left and right, the feeding bin has a track for sliding the rod, and the frame is provided with a feeding seat for placing steel balls, when the rod moves to the welding position via the track, the welding end is driven to bring the steel balls into contact with the rod, and weld the steel balls to the rod, the equipment completes automatic loading and welding, replaces manual welding, and improves processing efficiency and processing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of general machinery, in particular to a steel ball connecting rod automatic welding device. Background Art

[0002] Currently, ball bearing connecting rods are used in engine top rods. The ball bearing connecting rods include a rod and steel balls located on both sides of the rod. Currently, the installation of ball bearing connecting rods adopts semi-automatic manual loading and welding, that is, the staff welds the steel balls to the rod with handheld welding equipment. The work efficiency is low and the quality depends entirely on the staff's welding technology, which is not suitable for mass production. Summary of the Invention

[0003] In order to improve the production efficiency and quality of steel ball connecting rods, the present invention provides a steel ball connecting rod automatic welding device.

[0004] The present invention provides a steel ball connecting rod automatic welding device adopts the following technical solutions:

[0005] A steel ball connecting rod automatic welding equipment includes a frame, a feeding bin arranged on the frame and a welding device, the welding device has a welding end, the welding end can be driven to move back and forth left and right, the feeding bin has a track for the sliding of the rod, and the frame is provided with a feeding seat for placing steel balls. When the rod moves to the welding position via the track, the welding end is driven to bring the steel balls into contact with the rod and weld the steel balls to the rod.

[0006] Optionally, the welding device includes an electrode plate, an electrode rod and an intermediate frequency controller, the electrode rod is electrically connected to the intermediate frequency controller through a transformer, the electrode plate is arranged on the frame, the electrode plate is provided with a receiving hole adapted to the rod member, the electrode rod can be driven to slide back and forth left and right on the frame, the feed seat is provided with a through hole for the electrode rod to pass through, the steel ball is located in the through hole, the electrode rod, the through hole and the receiving hole are coaxial, and the electrode rod is used to weld the steel ball located in the through hole to the rod member located in the receiving hole.

[0007] Optionally, an automatic loading and unloading device is provided on the frame, and the automatic loading and unloading device includes a push plate and a first driving source. The electrode plate includes an upper electrode plate and a lower electrode plate. The first driving source is used to drive the push plate to slide back and forth up and down and is arranged on the lower electrode plate. The push plate has a limiting part and a slide rail. When the limiting part is higher than the lower electrode plate, it is used to limit the movement of the rod. When the slide rail is higher than the lower electrode plate, the rod moves downward along the slide rail.

[0008] Optionally, the frame is provided with a width adjustment device for adjusting the width of the feed bin, the width adjustment device includes a forward and reverse threaded screw and a second driving source, the second driving source is used to drive the forward and reverse threaded screw to rotate, the feed bin includes two bin bodies arranged in a mirror image, the two bin bodies are respectively threadedly connected to the forward and reverse threaded screws, and the rod is located between the two bin bodies.

[0009] Optionally, the bottom of the bin body is bent upward to form a folded edge, and the top of the folded edge is used for rolling contact with the rod body.

[0010] Optionally, an adsorption member for adsorbing steel balls is provided on the electrode rod, and the adsorption member includes an air source and an air pipe, one end of the air pipe is connected to the electrode rod, and the other end is connected to the air source, and the air source is used to evacuate the inside of the electrode rod.

[0011] Optionally, two electrode rods are provided, and the two electrode rods are respectively provided on the left and right sides of the electrode plate, and the two electrode rods are connected in series with the transformer.

[0012] Optionally, the upper electrode plate is arranged on a frame for reciprocating up and down, and the frame is provided with a third driving source for driving the upper electrode plate to reciprocate up and down, and the upper electrode plate can be pressed against the lower electrode plate during the downward movement.

[0013] Optionally, a clamping block is detachably provided on the lower electrode plate, and the accommodating holes are provided on the clamping block. A plurality of the accommodating holes are provided at intervals along the circumference of the clamping block.

[0014] Optionally, the frame is provided with a fourth driving source for driving the electrode rod to move back and forth left and right.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] 1. Automatic loading and welding replaces manual welding, improving processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the connection structure between the feed bin and the lower electrode plate according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall structure of the feed bin according to an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the connection structure between the feed bin and the welding device according to an embodiment of the present invention;

[0021] Figure 5It is a side view between the automatic loading and unloading device and the lower electrode plate of an embodiment of the present invention.

[0022] Explanation of the accompanying drawings: 1. Frame; 2. Feed bin; 21. Bin body; 22. Folding edge; 3. Welding device; 31. Electrode plate; 311. Upper electrode plate; 312. Lower electrode plate; 32. Electrode rod; 33. Intermediate frequency controller; 4. Feed seat; 5. Receiving hole; 6. Automatic loading and unloading device; 61. Push plate; 611. Limiting part; 62. First driving source; 7. Width adjustment device; 71. Forward and reverse thread screw; 72. Second driving source; 8. Rod; 9. Third driving source; 10. Clamping block; 11. Fourth driving source. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 The present invention is described in further detail.

[0024] The embodiment of the present invention discloses a steel ball connecting rod automatic welding device.

[0025] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 An automatic welding device for steel ball connecting rods includes a frame 1, a feed bin 2 disposed on the frame 1, and a welding device 3. The welding device 3 has a welding end that can be driven to move back and forth. The feed bin 2 has a track for sliding a rod 8. The frame 1 is provided with a feed seat 4 for placing steel balls. When the rod 8 moves to the welding position via the track, the welding end is driven to bring the steel balls into contact with the rod 8 and weld the steel balls to the rod 8. The rod 8 is automatically fed through the feed bin 2 and the welding end is used to weld the steel balls to the rod 8, replacing manual welding and improving processing efficiency and quality.

[0026] The welding device 3 includes an electrode plate 31, an electrode rod 32, and an intermediate frequency controller 33. The electrode rod 32 is electrically connected to the intermediate frequency controller 33 via a transformer. The electrode plate 31 is mounted on the frame 1. The intermediate frequency controller 33 is mounted on the frame 1. The transformer controlled by the intermediate frequency controller 33 outputs a complete sinusoidal wave, compared to conventional power frequency and intermediate frequency welders. This reduces spatter and eliminates the tedious task of manually switching welding specifications.

[0027] In this embodiment, the electrode plate 31 includes an upper electrode plate 311 and a lower electrode plate 312, with the upper electrode plate 311 positioned above the lower electrode plate 312. A support frame is mounted on the frame 1, and the upper electrode plate 311 is arranged on the support frame in a reciprocating manner in the up and down directions. The support frame is provided with a third driving source 9 for driving the upper electrode plate 311 to reciprocate up and down. In this embodiment, the third driving source 9 is a cylinder. During welding, the upper electrode plate 311 is moved downward by the third driving source 9 and pressed against the lower electrode plate 312.

[0028] Both the upper electrode plate 311 and the lower electrode plate 312 are provided with a receiving hole 5 adapted to the rod 8 . When the upper electrode plate 311 and the lower electrode plate 312 are fitted together, the longitudinal section of the electrode plate 31 forms a circle adapted to the rod 8 .

[0029] A removable rectangular clamping block 10 is mounted on the lower electrode plate 312. The clamping block 10 is provided with a plurality of receiving holes 5 for the lower electrode plate 312. Multiple receiving holes 5 are spaced apart along the circumference of the clamping block 10. In this embodiment, four receiving holes 5 are provided. If one receiving hole 5 becomes worn, the clamping block 10 can be rotated so that the remaining receiving holes 5 face upward, facilitating replacement.

[0030] In this embodiment, the electrode plate 31 is made of non-ferrous metal, such as copper, in order to prevent the intermediate frequency welding method from magnetizing surrounding components.

[0031] The electrode rod 32 is used to weld the steel ball located within the perforation to the rod 8 located within the receiving hole 5 via a transformer and an intermediate frequency controller 33. The electrode rod 32 is mounted on the frame 1 in a manner such that it can be driven to slide back and forth. The frame 1 is provided with a fourth drive source 11 for driving the electrode rod 32 to reciprocate. In this embodiment, the fourth drive source 11 is a pneumatic cylinder, the piston rod of which is fixedly connected to the electrode rod 32.

[0032] In this embodiment, two electrode rods 32 are provided, one on each side of the electrode plate 31. These two electrode rods 32 are connected to the two poles of the transformer via soft copper strips, and the three are connected in series. This structure ensures uniform current flow at all contact points, resulting in highly consistent discharge and heat generation and excellent welding results.

[0033] Two feed seats 4 are installed, located on the left and right sides of the lower electrode plate 312. The feed seats 4 are made of non-metallic material, and in this embodiment, ceramic. To automatically discharge the steel balls, a funnel is installed on the feed seat 4, and the steel balls are placed on the funnel. The feed seat 4 has a through-hole for the electrode rod 32 to pass through along the forward direction of the electrode rod 32. The top of the feed seat 4 is open and connected to the through-hole. The opening of the feed seat 4 is used to allow only one steel ball to fall, and the steel ball falls into the through-hole.

[0034] The electrode rod 32 , the through hole and the receiving hole 5 are coaxial.

[0035] The electrode rod 32 is equipped with a suction element for absorbing steel balls. The suction element comprises an air source and an air pipe. One end of the air pipe is connected to the electrode rod 32, and the other end is connected to the air source. The front end of the electrode rod 32 is hollow and open. The air source is used to evacuate the hollow interior of the electrode rod 32. When the air source is activated, the electrode rod 32 contacts the steel ball in the through-hole, generating negative pressure that attracts the steel ball to the front end of the electrode rod 32. When the electrode rod 32 is not welding, only one steel ball is located in the through-hole. When the electrode rod 32 moves forward, it closes the connection between the opening of the feed seat 4 and the through-hole, preventing the steel ball from falling. After welding is completed, the electrode rod 32 retreats to the connection point, allowing the steel balls in the feed seat 4 to fall downward one by one into the through-hole. This structure enables the automatic discharge of steel balls and their automatic absorption by the electrode rod 32, improving welding efficiency.

[0036] The feed bin 2 is used to feed the rod 8. It is tilted and mounted on the frame 1, with its lower end connected to the lower electrode plate 312. The feed bin 2 comprises two mirror-image bins 21. The bottoms of the bins 21 are bent upward to form hems 22, the tops of which are designed to roll against the rod 8. The rod 8 is positioned between the two bins 21, minimizing contact with the rod and preventing it from slipping.

[0037] The frame 1 is provided with a width adjustment device 7 for adjusting the spacing between the two silo bodies 21. The width adjustment device 7 includes a forward and reverse threaded screw 71 and a second drive source 72. The second drive source 72 is used to drive the forward and reverse threaded screw 71 to rotate. In this embodiment, the second drive source 72 is composed of a belt, a driving pulley, a driven pulley, and a motor. The motor is coaxially fixedly connected to the driving pulley, and the driven pulley is coaxially fixedly connected to the forward and reverse threaded screw 71. The belt is connected between the driving pulley and the driven pulley. The forward and reverse threaded screw 71 is rotatably arranged on the frame 1. The two silo bodies 21 are respectively threadedly connected to the ends of the forward and reverse threaded screw 71. The rod 8 is located between the two silo bodies 21. This allows the feed silo 2 to accommodate rods 8 of different sizes, improving its applicability.

[0038] An automatic loading and unloading device 6 is mounted on the frame 1. This device comprises a push plate 61 and a first drive source 62. The first drive source 62 is configured to drive the push plate 61 to slide back and forth, and is mounted on the lower electrode plate 312. In this embodiment, the first drive source 62 is a pneumatic cylinder mounted on the frame 1, with its piston rod fixedly connected to the push plate 61. The push plate 61 has a restraining portion 611 and a slide rail. In this embodiment, the restraining portion 611 is a bump. The side of the bump closest to the feed bin 2 is closer to the feed bin 2 than to the receiving hole 5. The bump is mounted on the top of the push plate 61, forming a notch. A rod 8 falling from the feed bin 2 moves into the notch and is blocked by the bump, thereby being restrained on the push plate 61. A fixing seat is mounted on the lower electrode plate 312. The top of the fixing seat has a downwardly inclined guide surface, which is configured to drive the rod 8 downward. The lower end of the guide surface of the mounting seat is aligned horizontally with the receiving hole 5. When the limiting portion 611 is higher than the guide surface of the mounting seat, the groove formed by the limiting portion 611 is used to limit the movement of the rod 8. When the limiting portion 611 is lower than the guide surface of the mounting seat, the rod 8 located on the push plate 61 contacts the guide surface of the mounting seat and moves downward and moves to the accommodating hole 5.

[0039] The end of the protrusion away from the feed bin 2 is provided with an inclined surface, forming a slide rail for the rod 8 to slide downward. When the slide rail is higher than the guide surface of the mounting seat, the rod 8 is lifted by the guide surface, separated from the receiving hole 5, and then moves downward along the inclined direction of the slide rail to complete the unloading. This structure realizes automatic unloading of the rod 8 and the welded steel ball connecting rod, improving welding convenience.

[0040] In this embodiment, the front end refers to the direction in which the electrode rod 32 approaches the electrode plate 31. Up and down refer to the vertical direction, and left and right refer to the horizontal direction.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel ball connecting rod automatic welding equipment, characterized by: The invention comprises a frame (1), a feeding bin (2) arranged on the frame (1) and a welding device (3), wherein the welding device (3) has a welding end, and the welding end can be driven to move back and forth left and right, the feeding bin (2) has a track for sliding a rod (8), and a feeding seat (4) for placing steel balls is provided on the frame (1), and when the rod (8) moves to a welding position via the track, the welding end is driven to drive the steel balls to contact the rod (8) and weld the steel balls to the rod (8); the welding device (3) comprises an electrode plate (31), an electrode rod (32) and an intermediate frequency controller (33), and the electrode rod (32) is connected to the intermediate frequency controller via a transformer. (33) is electrically connected, the electrode plate (31) is arranged on the frame (1), the electrode plate (31) is provided with a receiving hole (5) adapted to the rod (8), the electrode rod (32) can be driven to slide back and forth on the frame (1), the feed seat (4) is provided with a through hole for the electrode rod (32) to pass through, the steel ball is located in the through hole, the electrode rod (32), the through hole and the receiving hole (5) are coaxial, and the electrode rod (32) is used to weld the steel ball located in the through hole to the rod (8) located in the receiving hole (5); the frame (1) is provided with an automatic loading and unloading device (6), the automatic loading and unloading device (6) includes a push plate (6) 1) and a first driving source (62), the electrode plate (31) includes an upper electrode plate (311) and a lower electrode plate (312), the first driving source (62) is used to drive the push plate (61) to slide back and forth and is arranged on the lower electrode plate (312), the push plate (61) has a limiting portion (611) and a slide rail, when the limiting portion (611) is higher than the lower electrode plate (312), it is used to limit the movement of the rod (8), when the slide rail is higher than the lower electrode plate (312), the rod (8) moves downward along the slide rail; the lower electrode plate (312) is detachably provided with a clamping block (10), the accommodating hole (5) is opened on the clamping block (10), the accommodating hole (5) A plurality of limiting portions (611) are provided at intervals along the circumference of the clamping block (10); the limiting portion (611) is a protrusion, and the side of the protrusion close to the feed bin (2) is closer to the feed bin (2) than the receiving hole (5); the protrusion is installed on the top of the push plate (61), so that a notch is formed on the top of the push plate (61), and the rod (8) falling from the feed bin (2) moves to the notch and is blocked by the protrusion, and is restricted on the push plate (61); a fixing seat is provided on the lower electrode plate (312), and a guide surface inclined downward is provided on the top of the fixing seat for driving the rod (8) to move downward, and the lower end of the guide surface of the fixing seat is located in the same horizontal direction as the receiving hole (5);When the limiting portion (611) is higher than the guide surface of the fixed seat, the notch formed by the limiting portion (611) is used to limit the movement of the rod (8); when the limiting portion (611) is lower than the guide surface of the fixed seat, the rod (8) located on the push plate (61) contacts the guide surface of the fixed seat and moves downward to the receiving hole (5); the end of the protrusion away from the feed bin (2) is provided with an inclined surface to form a slide rail for the rod (8) to slide downward; when the slide rail is higher than the guide surface of the fixed seat, the rod (8) is lifted by the guide surface and separated from the receiving hole (5), and then moves downward along the inclined direction of the slide rail to complete the unloading.

2. The automatic welding equipment for steel ball connecting rods according to claim 1, characterized in that: The frame (1) is provided with a width adjustment device (7) for adjusting the width of the feed bin (2), the width adjustment device (7) comprising a forward and reverse threaded screw (71) and a second drive source (72), the second drive source (72) being used to drive the forward and reverse threaded screw (71) to rotate, the feed bin (2) comprising two bin bodies (21) arranged in a mirror image, the two bin bodies (21) being respectively threadedly connected to the forward and reverse threaded screw (71), and the rod (8) being located between the two bin bodies (21).

3. The automatic welding equipment for steel ball connecting rods according to claim 2, characterized in that: The bottom of the bin body (21) is bent upward to form a folded edge (22), and the top of the folded edge (22) is used for rolling contact with the rod body.

4. The automatic welding equipment for steel ball connecting rods according to claim 1, characterized in that: An adsorption member for adsorbing steel balls is provided on the electrode rod (32), and the adsorption member comprises an air source and an air pipe, one end of the air pipe is connected to the electrode rod (32), and the other end is connected to the air source, and the air source is used to evacuate air from the interior of the electrode rod (32).

5. The automatic welding equipment for steel ball connecting rod according to claim 1, characterized in that: Two electrode rods (32) are provided, and the two electrode rods (32) are respectively provided on the left and right sides of the electrode plate (31), and the two electrode rods (32) are connected in series with the transformer.

6. The automatic welding equipment for steel ball connecting rods according to claim 1, characterized in that: The upper electrode plate (311) is arranged on the frame (1) in a reciprocating manner. The frame (1) is provided with a third driving source (9) for driving the upper electrode plate (311) to reciprocate up and down. The upper electrode plate (311) can be tightly pressed against the lower electrode plate (312) during the downward movement.

7. The automatic welding equipment for steel ball connecting rod according to claim 1 or 5, characterized in that: The frame (1) is provided with a fourth driving source (11) for driving the electrode rod (32) to move back and forth.

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