Automatic DC wire welding machine

Abstract

The invention discloses an automatic DC wire welding machine, and relates to the technical field of DC wire welding, the automatic DC wire welding machine comprises a processing machine tool, a conveying mechanism is arranged on the processing machine tool, a carrier for fixing a DC wire is arranged on the conveying mechanism, and a welding device is arranged on the processing machine tool; the carrier comprises two symmetrically-arranged L-shaped clamping plates and a moving table used for bearing the two L-shaped clamping plates, the top block is inserted, meanwhile, the welding gun and the welding end of the DC wire are aligned to a to-be-welded part at the same time, the alignment accuracy is improved, the tin soldering precision is improved, the welding quality of the DC wire is ensured, and the welding efficiency is improved. The distance between the two welding guns can be adjusted by the ejector blocks according to the welding position of a welding part, the two L-shaped clamping plates can be adjusted in real time according to the distance between the ejector blocks through stretching and retracting of the elastic part, the positioning requirement can be met according to the welding requirement, the adaptability of the whole welding equipment is improved, and when the straightening part moves, the clamping end of the straightening part straightens a DC wire, so that the welding quality is improved. And the straightness of the bent end of the DC wire can be effectively adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of DC wire welding, and in particular to an automatic DC wire welding machine. Background Art

[0002] DC cable, full name is Direct Current cable, is mainly used to transmit direct current. It is usually used to connect DC power sources, such as chargers, power adapters, etc., and is widely used in charging devices such as mobile phones and digital cameras. In the internal connections of electronic devices, DC cables need to be welded, and welding can ensure the stability and durability of the connection. In addition, some special application scenarios may require the use of welded joints to meet specific electrical performance requirements. Welded joints usually have high stability and durability, and are suitable for applications requiring high current and high voltage. The welding process requires professional tools and skills, and once welding is completed, it is difficult to modify or replace.

[0003] In the prior art, the DC harness needs to be manually placed on a moving carrier, and the harness clamp is moved on the carrier and transported to the welding station. However, during the production or transportation and storage of the DC harness, the stripped end of the harness is easily bent, and the bent end needs to be manually straightened before welding, resulting in a complicated process and low automation efficiency. Secondly, the existing DC harness clamping carriers are all fixed in size. If the welded part changes, the matching carrier must be replaced, resulting in poor welding adaptability. Summary of the invention

[0004] The object of the present invention is to provide an automatic DC wire welding machine, which has the advantages that the welding gun and the DC wire welding end are aligned with the workpiece to be welded at the same time, the alignment accuracy is improved, the soldering accuracy is improved, and the DC wire welding quality is ensured. The top block can adjust the distance between the two welding guns according to the welding position of the welded workpiece. Through the expansion and contraction of the elastic member, the two L-shaped clamping plates can be adjusted in real time according to the top block distance, so that the positioning requirements can be met according to the welding needs, and the adaptability of the entire welding equipment is improved. When the straightening member moves, its clamping end straightens the DC wire, and the straightness of the bent end of the DC wire is effectively adjusted.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic DC wire welding machine, comprising a processing machine tool, a conveying mechanism is provided on the processing machine tool, a carrier for fixing the DC wire is provided on the conveying mechanism, and a welding device is provided on the processing machine tool;

[0006] The carrier includes two symmetrically arranged L-shaped clamps and a movable platform for carrying the two L-shaped clamps. The two L-shaped clamps are connected by an elastic member, and the two L-shaped clamps can move toward or opposite to each other with the elastic member as the center. Straightening members are provided on both L-shaped clamps. When the DC line is clamped by the L-shaped clamps, the straightening members move along the length direction of the DC line to adjust the curvature of one end of the DC line.

[0007] Furthermore, a U-shaped clip is arranged on the L-shaped clamp plate, a friction piece is arranged on the inner wall of the U-shaped clip, and the DC line is placed in the U-shaped clip by means of a clamp.

[0008] Furthermore, a slider is provided below each of the two L-shaped clamping plates, and a slide groove for the slider to slide is provided on the moving platform.

[0009] Furthermore, the welder comprises two symmetrically arranged top blocks, and the two top blocks can move synchronously towards or opposite to each other, and welding guns are installed at the ends of the two top blocks that are away from each other.

[0010] Furthermore, when the two top blocks are in a fitted state, their bottom ends merge into an inverted triangle shape, and when the two L-shaped clamping plates are in a fitted state, the upper end of the connection presents a U-shaped groove.

[0011] Furthermore, the carrier can move vertically under the drive of the driver, and when the two top blocks move downward, the bottom ends thereof can be engaged with the U-shaped grooves.

[0012] Furthermore, the straightening member includes a left clamping plate, a right clamping plate, a U-shaped support and a movable support, the L-shaped clamping plate is provided with a groove for moving the movable support, the L-shaped clamping plate is provided with a driving mechanism for driving the straightening member to move, the movable support is slidably connected with the U-shaped support, the U-shaped support is symmetrically provided with a left clamping plate and a right clamping plate, and the left clamping plate and the right clamping plate are respectively connected to the U-shaped support through springs.

[0013] Furthermore, a guide cross bar is arranged inside the U-shaped support, and the bottom ends of the left clamping plate and the right clamping plate are sleeved on the guide cross bar and slide on the guide cross bar through springs.

[0014] Furthermore, the driving mechanism includes a first connecting rod, a second connecting rod, a transverse rack, a driving rod, a support rod seat and a vertical rack. The first connecting rod is arranged on the upper end of the vertical plate surface of the L-shaped clamp, and the second connecting rod is arranged below the first connecting rod. A vertical groove is opened in the vertical plate of the L-shaped clamp, and the first connecting rod and the second connecting rod are connected by a belt. The first connecting rod is sleeved with a first gear, and the second connecting rod is sleeved with a second gear. The transverse rack is connected to the movable support, and the second gear is meshed with the transverse rack, the vertical rack is connected to the top block, and the vertical rack is meshed with the first gear. The support rod seat is fixed on the movable platform, and the driving rod is installed on the movable support through an axis rod.

[0015] Furthermore, the lower panel of the driving rod is provided with a locking triangular groove, and a triangular block movably engaged with the locking triangular groove is provided on the U-shaped support. One end of the driving rod is an inclined surface, and one end of the rod support seat is provided with an inclined top surface movably engaged with one end of the driving rod.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention realizes that while the top block is inserted, the welding gun and the DC wire welding end are aligned with the workpiece to be welded at the same time, thereby improving the alignment accuracy, improving the soldering accuracy, and ensuring the DC wire welding quality. The top block can adjust the distance between the two welding guns according to the welding position of the welded workpiece, and the two L-shaped clamps can be adjusted in real time according to the top block distance through the expansion and contraction of the elastic member, so that the positioning requirements can be met according to the welding needs, and the adaptability of the entire welding equipment is improved. The straightening member moves along the length direction of the DC wire to adjust the curvature of one end of the DC wire. The straightening member clamps the surface of the DC wire. When the straightening member moves, its clamping end straightens the DC wire, effectively adjusting the straightness of the bent end of the DC wire, ensuring that the DC wire will not be unable to be aligned due to bending, and there is no need for manual straightening, which increases the processing complexity and improves the automation efficiency.

[0018] 2. The present invention realizes that the top block is inserted between the L-shaped clamping plates and drives the straightening member to move to straighten the DC wire stripping section, which effectively saves driving energy. In addition, through linkage, the displacement stroke of the welder is utilized to achieve positioning and straightening before welding, thereby improving adjustment automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A magnified image of point A;

[0021] Figure 3 It is a schematic diagram of the carrier structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified view of point B;

[0023] Figure 5 This is a schematic diagram of the structure of a carrier and a welder according to the second embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of the plug-in structure of the top block and the L-shaped clamping plate of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged view of point C;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point D.

[0027] In the figure:

[0028] 1. Processing machine tool; 2. Conveying mechanism; 3. Carrier; 31. L-shaped clamp; 311. Elastic member; 312. U-shaped clamp; 313. Groove; 32. Moving table; 321. Slider; 33. Straightening member; 331. Left clamp; 332. Right clamp; 333. U-shaped support; 3331. Triangular block; 334. Moving support; 4. Welder; 41. Top block; 42. Welding gun; 5. Driving mechanism; 51. First connecting rod; 511. First gear; 52. Second connecting rod; 521. Second gear; 53. Horizontal rack; 54. Driving rod; 541. Triangular groove; 55. Rod support; 56. Vertical rack. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Reference Figure 1 - Figure 4 , which is the first embodiment of the present invention, provides a DC line automatic welding machine, including a processing machine tool 1, a conveying mechanism 2 is arranged on the processing machine tool 1, the conveying mechanism 2 includes a conveying chain or a conveying belt, which is used to drive a carrier 3 to move on the processing machine tool 1, and a carrier 3 for fixing a DC line is arranged on the conveying mechanism 2. A welder 4 is arranged on the processing machine tool 1, and a point in the moving path of the conveyor belt coincides with a welding station below the welder 4. When the conveying mechanism 2 drives the carrier 3 to move, it can drive the carrier 3 to move to coincide with the welding station below the welder 4.

[0031] A plurality of carriers 3 are arranged on the conveying mechanism 2. The carriers 3 are used for placing and clamping the DC wire. The carriers 3 move to drive the DC wire to align with the workpiece to be welded. The workpiece to be welded is placed on the welding station.

[0032] The carrier 3 includes two symmetrically arranged L-shaped clamping plates 31 and a movable platform 32 for carrying the two L-shaped clamping plates 31. The two L-shaped clamping plates 31 are connected by an elastic member 311. It should be noted that the elastic member 311 can be a spring or a spring sheet, and the two L-shaped clamping plates 31 can move toward or opposite to each other with the elastic member 311 as the center. The distance between the DC line on the L-shaped clamping plate 31 and the vertical plate of the L-shaped clamping plate 31 matches the distance between the welding gun 42 and the top block 41. When the two top blocks 41 adjust the distance so that the welding guns 42 at both ends are aligned with the welding position, the two top blocks 41 move downward. When the top block 41 is inserted into the U-shaped groove between the two L-shaped clamps 31, the two L-shaped clamps 31 are stretched open. Due to the matching of the spacing, the welding gun 42 and the DC line welding end are aligned with the workpiece to be welded at the same time when the top block 41 is inserted, thereby improving the accuracy of alignment, improving the accuracy of soldering, and ensuring the quality of DC line welding. The top block 41 can adjust the spacing between the two welding guns 42 according to the welding position of the welded workpiece, and the two L-shaped clamps 31 can be adjusted in real time according to the spacing of the top block 41 through the expansion and contraction of the elastic member 311, so that the positioning requirements can be met according to the welding needs, thereby improving the adaptability of the entire welding equipment.

[0033] Straightening pieces 33 are provided on both L-shaped clamps 31. When the DC line is clamped by the L-shaped clamps 31, the straightening pieces 33 move along the length direction of the DC line to adjust the curvature of one end of the DC line. The straightening pieces 33 clamp the surface of the DC line. When the straightening pieces 33 move, the clamping end thereof straightens the DC line, effectively adjusting the straightness of the bent end of the DC line, ensuring that the DC line will not be misaligned due to the bending of the welding end, and no manual straightening is required, which increases the complexity of processing and improves the automation efficiency.

[0034] A U-shaped clamp 312 is provided on the L-shaped clamp plate 31, and a friction piece is provided on the inner wall of the U-shaped clamp 312. The DC line is placed in the U-shaped clamp 312 by clamping. The friction piece increases the friction of the clamp wall, and the DC line is clamped in the U-shaped clamp 312. The friction piece improves the stability of the clamp and prevents the DC line from being dislocated. A clamping block is provided in the U-shaped clamp 312, and the stripping end of the DC line is clamped with the clamping block. When the straightening piece 33 clamps and straightens the DC line, the stripping end of the DC line is limited by the clamping block and will not move with the straightening piece 33, thereby ensuring the straightening effect.

[0035] A slider 321 is provided under each of the two L-shaped clamps 31, and a slide groove for the slider 321 to slide is provided on the movable platform 32. The L-shaped clamp 31 slides in the slide groove through the slider 321, and the elastic member 311 provides a pulling force when the two L-shaped clamps 31 move in opposite directions. When the welder 4 is reset, the two L-shaped clamps 31 are reset under the elastic force of the elastic member 311. Because the movement between the two L-shaped clamps 31 is only adjusted by the top block 41, it is only necessary for the tip of the bottom end of the top block 41 to be in the U-shaped groove, and the groove distance between the U-shaped grooves is to limit the maximum spacing of the tip offset of the top block 41.

[0036] The welder 4 includes two symmetrically arranged top blocks 41, and the two top blocks 41 can move synchronously toward or opposite to each other. A welding gun 42 is installed at one end of the two top blocks 41 that are away from each other. The two top blocks 41 can be adjusted by two cylinders or by a screw rod and a motor. The screw rod is provided with two symmetrical thread grooves, which are arranged opposite to each other. The two top blocks 41 are respectively sleeved on the two thread grooves, thereby driving the two top blocks 41 to move synchronously toward or opposite to each other.

[0037] When the two top blocks 41 are in a fitted state, their bottom ends are merged into an inverted triangle shape. When the two L-shaped clamps 31 are in a fitted state, a U-shaped groove is formed at the upper end of the connection. The carrier 3 can move vertically under the drive of the driver. When the two top blocks 41 move downward, their bottom ends can be inserted into the U-shaped groove. The two top blocks 41 can adjust the spacing according to welding requirements. When the spacing between the top blocks 41 is determined, when they are inserted into the U-shaped groove, the two L-shaped clamps 31 are automatically squeezed to separate evenly outward, so that the DC line is aligned with the welding gun 42. If the spacing between the two welds of the welded parts is too large, the top block 41 can be inserted into the U-shaped groove first and then the spacing can be adjusted to prevent the spacing between the two top blocks 41 from being too large to fit into the U-shaped groove.

[0038] The straightening member 33 includes a left clamping plate 331, a right clamping plate 332, a U-shaped support 333 and a movable support 334. The L-shaped clamping plate 31 is provided with a groove 313 for moving the movable support 334. The L-shaped clamping plate 31 is provided with a driving mechanism 5 for driving the straightening member 33 to move. The movable support 334 is slidably connected with the U-shaped support 333. The left clamping plate 331 and the right clamping plate 332 are symmetrically arranged in the U-shaped support 333, and the left clamping plate 331 and the right clamping plate 332 are respectively connected to the U-shaped support 333 through springs. A guide cross bar is arranged inside the U-shaped support 333. The bottom ends of the left clamping plate 331 and the right clamping plate 332 are sleeved on the guide cross bar and slide on the guide cross bar through a spring. The left clamping plate 331 and the right clamping plate 332 are movable, the clamping ends of the left clamping plate 331 and the right clamping plate 332 are arc-shaped, and the left clamping plate 331 and the right clamping plate 332 are clamped on the surface of the DC wire stripping segment by a spring, the driving mechanism 5 can be a motor or a cylinder, the driving mechanism 5 can drive the U-shaped support 333 to slide in the movable support 334, thereby driving the left clamping plate 331 and the right clamping plate 332 to clamp and tidy up the DC wire in the clamping state, and straighten the wire end, the guide cross bar is used to limit the position of the left clamping plate 331 and the right clamping plate 332 when clamping and moving, and the guide cross bar is used to drive the left clamping plate 331 and the right clamping plate 332 to move, and the guide cross bar prevents the spring from bending, causing the spring to deform, so that the left clamping plate 331 and the right clamping plate 332 cannot move.

[0039] Example 2: Reference Figure 5 - Figure 8, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the driving mechanism 5 includes a first connecting rod 51, a second connecting rod 52, a transverse rack 53, a driving rod 54, a push rod seat 55 and a vertical rack 56. The first connecting rod 51 is arranged at the upper end of the vertical plate surface of the L-shaped clamping plate 31, and the second connecting rod 52 is arranged below the first connecting rod 51. A vertical groove is opened in the vertical plate of the L-shaped clamping plate 31. The first connecting rod 51 and the second connecting rod 52 are connected by a belt. The first connecting rod 51 is sleeved with a first gear 511, and the second connecting rod 52 is sleeved with a second gear 521. The transverse rack 53 is connected to the movable support 334, and the second gear 521 is meshed with the transverse rack 53. The vertical rack 56 is connected to the top block 41, and the vertical rack 56 is meshed with the first gear 511. The push rod seat 55 The driving rod 54 is fixed on the moving platform 32, and is installed on the moving support 334 through the shaft rod. The lower panel of the driving rod 54 is provided with a locking triangular groove 541, and the U-shaped support 333 is provided with a triangular block 3331 movably engaged with the locking triangular groove 541. One end of the driving rod 54 is an inclined surface, and one end of the supporting rod seat 55 is provided with an inclined top surface movably engaged with one end of the driving rod 54. A reset spring is provided at one end of the supporting rod seat 55, and the U-shaped support 333 is in movably contact with the reset spring. By setting the driving mechanism 5, the top block 41 is inserted between the L-shaped clamping plates 31, and the straightening member 33 is driven to move to straighten the DC line stripping segment, which effectively saves driving energy. In addition, the displacement stroke of the welder 4 is utilized in a linkage manner to realize positioning and straightening before welding, thereby improving adjustment automation.

[0040] Specifically, the top block 41 is inserted into the U-shaped groove, and the vertical rack 56 moves downward together, the vertical rack 56 drives the first gear 511 and the first connecting rod 51 to rotate, the first connecting rod 51 drives the second connecting rod 52 and the second gear 521 to rotate through the belt, the second gear 521 drives the horizontal rack 53 to move, thereby driving the straightening member 33 to move toward the welding position, the movement of the movable support 334 drives the driving rod 54 to move, the triangular groove 541 at the lower end of the driving rod 54 is engaged with the triangular block 3331, thereby driving the U-shaped support 333 to move together, when the straightening member 33 moves to the end of the stroke, the straightening member 33 straightens the DC wire stripping segment and at the same time When the U-shaped support 333 is in a state of being moved, the return spring is pressed against the oblique end of the driving rod 54 and the oblique surface of the support rod seat 55 are aligned, the straightening member 33 continues to move, and the support rod seat 55 drives one end of the driving rod 54 to be lifted up. When the triangular groove 541 and the triangular block 3331 are not in a position, the return spring drives the U-shaped support 333 to rebound, so that the DC line welding end leaks out without affecting subsequent welding. When the welding is completed, the top block 41 moves up and resets, and then drives the movable support 334 to reset through the driving mechanism 5. When the movable support 334 moves to the triangular groove 541 at the lower end of the driving rod 54 and is in a position with the triangular block 3331, it continues to drive the U-shaped support 333 to reset.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A DC wire automatic welding machine, comprising a processing machine tool (1), on which a conveying mechanism (2) is arranged, characterized in that: The conveying mechanism (2) is provided with a carrier (3) for fixing the DC line, and the processing machine tool (1) is provided with a welder (4); The carrier (3) comprises two symmetrically arranged L-shaped clamping plates (31) and a moving platform (32) for carrying the two L-shaped clamping plates (31); the two L-shaped clamping plates (31) are connected by an elastic member (311), and the two L-shaped clamping plates (31) can move towards or away from each other with the elastic member (311) as the center; a straightening member (33) is provided on each of the two L-shaped clamping plates (31); when the DC line is clamped by the L-shaped clamping plates (31), the straightening member (33) moves along the length direction of the DC line to adjust the curvature of one end of the DC line.

2. The DC wire automatic welding machine according to claim 1, characterized in that: The L-shaped clamp (31) is provided with a U-shaped clamp (312), the inner wall of the U-shaped clamp (312) is provided with a friction piece, and the DC line is placed in the U-shaped clamp (312) by means of a clamp.

3. The DC wire automatic welding machine according to claim 2, characterized in that: Slide blocks (321) are provided below the two L-shaped clamping plates (31), and a sliding groove for the slide blocks (321) to slide is provided on the moving platform (32).

4. The DC wire automatic welding machine according to claim 3, characterized in that: The welder (4) comprises two symmetrically arranged top blocks (41), and the two top blocks (41) can move synchronously towards or in opposite directions, and welding guns (42) are installed at the ends of the two top blocks (41) that are away from each other.

5. The DC wire automatic welding machine according to claim 4, characterized in that: When the two top blocks (41) are in a fitted state, their bottom ends merge into an inverted triangle shape, and when the two L-shaped clamping plates (31) are in a fitted state, the upper end of the connection presents a U-shaped groove.

6. The DC wire automatic welding machine according to claim 5, characterized in that: The carrier (3) can move vertically under the drive of a driver, and when the two top blocks (41) move downward, their bottom ends can be inserted into the U-shaped grooves.

7. The DC wire automatic welding machine according to claim 6, characterized in that: The straightening member (33) comprises a left clamping plate (331), a right clamping plate (332), a U-shaped support (333) and a movable support (334); a groove (313) for moving the movable support (334) is provided on the L-shaped clamping plate (31); a driving mechanism (5) for driving the straightening member (33) to move is provided on the L-shaped clamping plate (31); the movable support (334) is slidably connected with the U-shaped support (333); a left clamping plate (331) and a right clamping plate (332) are symmetrically arranged in the U-shaped support (333); and the left clamping plate (331) and the right clamping plate (332) are respectively connected to the U-shaped support (333) through springs.

8. The DC wire automatic welding machine according to claim 7, characterized in that: A guide cross bar is arranged inside the U-shaped support (333), and the bottom ends of the left clamping plate (331) and the right clamping plate (332) are sleeved on the guide cross bar and slide on the guide cross bar through a spring.

9. The DC wire automatic welding machine according to claim 8, characterized in that: The driving mechanism (5) comprises a first connecting rod (51), a second connecting rod (52), a transverse rack (53), a driving rod (54), a rod support seat (55) and a vertical rack (56); the first connecting rod (51) is arranged at the upper end of the vertical plate surface of the L-shaped clamping plate (31); the second connecting rod (52) is arranged below the first connecting rod (51); a vertical groove is provided in the vertical plate of the L-shaped clamping plate (31); the first connecting rod (51) and the second connecting rod (52) are connected by a belt sleeve; the first connecting rod (51) ), a first gear (511) is sleeved on the second connecting rod (52), a second gear (521) is sleeved on the second connecting rod (52), a transverse rack (53) is connected to the movable support (334), and the second gear (521) is meshed with the transverse rack (53), a vertical rack (56) is connected to the top block (41), and the vertical rack (56) is meshed with the first gear (511), a rod support seat (55) is fixed on the movable platform (32), and a driving rod (54) is installed on the movable support (334) through a shaft rod.

10. The DC wire automatic welding machine according to claim 9, characterized in that: The lower panel of the driving rod (54) is provided with a locking triangular groove (541), the U-shaped support (333) is provided with a triangular block (3331) movably engaged with the locking triangular groove (541), one end of the driving rod (54) is an inclined surface, and one end of the rod support (55) is provided with an inclined top surface movably engaged with one end of the driving rod (54).

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