High-precision spot welding machine for connector joint production

Abstract

The invention discloses a high-precision spot welding machine for connector joint production, and relates to the field of spot welding machines, the high-precision spot welding machine comprises a base plate, an operation plate is fixed on the upper surface of the base plate, and a positioning mechanism for fixing a machined joint is arranged outside the base plate. According to the spot welding device, through cooperation between a hydraulic rod and a transmission block, a first rotating rod can be driven to move, a positioning block is driven to slide, when the first rotating rod moves to one side of a toothed rod, through cooperation between the toothed rod and a transmission wheel, the first rotating rod can rotate in the ascending process, and a spot welding rod is driven to conduct semicircular overturning; when the transmission wheel is far away from the toothed bar, through cooperation between a positioning block and a transmission groove, a first rotating rod can continue to move, a spot welding rod is driven to be embedded into a storage hole, an oxide layer on the surface of the spot welding rod can be removed through friction, and multi-point positioning can be conducted on machining joints of different shapes through a limiting frame; and the position stability of the machined joint during spot welding is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spot welding machines, in particular to a high-precision spot welding machine for producing connector joints. Background Art

[0002] Spot welding machine is a kind of mechanical equipment, which adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, an instantaneous heat welding is formed at the two contact resistance points, and the welding current instantly flows from the other electrode along the two workpieces to this electrode to form a loop, and will not damage the internal structure of the workpiece being welded.

[0003] In the Chinese patent application disclosure specification CN208743914U, a connector bracket assembly and welding equipment is disclosed, including a linear feeder, a material transfer mechanism, a bracket cutting device, a laser spot welder and a human-machine operation interface arranged on a frame. The utility model has a simple structure and complete functions. The automated equipment replaces the original manual assembly method and has high production efficiency.

[0004] Although the solution of the above patent can automatically weld the connector, the welding equipment in the above patent is not convenient for adjusting the size of the positioning device for connector joints of different shapes. The size of most positioning devices is fixed, and the size difference of joints in different batches is small. Workers need to use professional tools to measure and adjust, which affects the operating efficiency of the electric welder. In addition, the welding head will form an oxide layer when it is in contact with the air for a long time, thereby affecting the performance of the welding point. For this reason, we provide a high-precision spot welding machine for connector joint production to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a high-precision spot welding machine for connector joint production, which can perform multi-point positioning on processed joints of different shapes and can remove the oxide layer on the surface of the spot welding rod.

[0006] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a high-precision spot welding machine for connector joint production, comprising a base plate, a working plate fixed to the upper surface of the base plate, a positioning mechanism for fixing the processed joints is arranged on the outside of the base plate, the positioning mechanism comprises two sets of limit rods rotatably sleeved inside the base plate, the top end of the limit rods rotates through the base plate and is fixedly sleeved on the limit frame.

[0007] Furthermore, the positioning mechanism includes a first motor fixed to the bottom surface of the base plate, the output end of the first motor is fixedly sleeved with a transmission sleeve, both ends of the transmission sleeve are rotatably connected with connecting arc rods, each end of the connecting arc rod away from the transmission sleeve is rotatably sleeved with a transmission rod, the bottom end of the transmission rod is fixedly sleeved with a transmission short rod, both ends of the transmission short rod are rotatably connected with a first connecting rod, each end of the first connecting rod away from the transmission short rod is rotatably connected with a second connecting rod, and one end of the second connecting rod away from the first connecting rod is fixedly sleeved on the bottom end of the limiting rod.

[0008] Furthermore, the positioning mechanism also includes two slide grooves opened on the bottom surface of the base plate, and the interior of each of the slide grooves is slidably connected to a sliding block fixedly sleeved on the top end of the transmission rod.

[0009] By adopting the above technical solution, the processing joint can be positioned at multiple points through the positioning mechanism, thereby improving the position stability of the processing joint during spot welding.

[0010] A supporting frame is fixed to one side of the base plate, and a moving frame is slidably connected to one side of the supporting frame. A connecting frame is arranged below the moving frame, and a lifting mechanism is arranged above the moving frame to drive the connecting frame to move up and down. The lifting mechanism includes a limiting groove opened inside the moving frame, and a moving plate fixed to the top of the connecting frame is slidably sleeved inside the limiting groove. A connecting block is fixed to the top surface of the moving plate, and a transmission frame is fixed to the top of the connecting block. An eccentric wheel is slidably connected to the inside of the transmission frame.

[0011] Furthermore, the lifting mechanism includes a second motor fixed on the upper surface of the moving frame, a second rotating rod is fixed to the output end of the second motor, and the second rotating rod is fixedly sleeved inside the eccentric wheel.

[0012] Furthermore, the lifting mechanism also includes two support plates fixed on the upper surface of the moving frame, a compression spring is fixed between the support plate and the bottom surface of the transmission frame, and the connecting block is slidably connected between the two support plates.

[0013] By adopting the above technical solution, the spot welding rod is driven by the lifting mechanism to move downward and close to the processing joint, so that the fixed joint can be processed.

[0014] Furthermore, a support groove is provided on one side of the support frame, a threaded rod is rotatably connected inside the support groove, the threaded rod is threadedly sleeved inside the movable frame, and the movable frame slides inside the support groove.

[0015] By adopting the above technical solution, the threaded rod is driven to rotate by external power, and the movable frame is driven to move above the base plate by the threaded rod, so that the working position of the spot welding rod can be adjusted according to the working needs.

[0016] A power mechanism for spot welding the processed joints is arranged on the outside of the connecting frame, and the power mechanism includes a hydraulic rod fixed on one side of the connecting frame and a transmission groove opened on the side of the connecting frame, a transmission block is fixed to the bottom end of the hydraulic rod, a first rotating rod is rotatably sleeved inside the transmission block, a support block is fixed to the end of the first rotating rod away from the transmission block, a spot welding rod is arranged inside the support block, and a positioning block sliding inside the transmission groove is fixedly sleeved on the periphery of the first rotating rod.

[0017] Furthermore, the power mechanism also includes a transmission wheel fixedly sleeved on the periphery of the first rotating rod, a gear rod meshing with the transmission wheel is fixed to one side of the connecting frame, a connecting plate is fixed to the top of the connecting frame, and a storage hole is opened on the bottom surface of the connecting plate.

[0018] Furthermore, the power mechanism also includes a limit block rotatably sleeved on the periphery of the first rotating rod, and both ends of the limit block are slidably connected to a positioning frame fixed on a side of the connecting frame.

[0019] By adopting the above technical solution, the spot welding rod can be driven by the power mechanism to be embedded in the receiving hole, and the oxide layer on the surface of the spot welding rod can be removed.

[0020] Compared with the prior art, the high-precision spot welding machine for connector joint production has the following beneficial effects:

[0021] 1. The present invention can drive the first rotating rod to move and drive the positioning block to slide inside the transmission groove through the cooperation between the hydraulic rod and the transmission block. When the first rotating rod moves to one side of the gear rod, the cooperation between the gear rod and the transmission wheel can make the first rotating rod rotate during the rising process and drive the spot welding rod to perform a semicircular flip. When the transmission wheel is away from the gear rod, the cooperation between the positioning block and the transmission groove can make the first rotating rod continue to move and drive the spot welding rod to embed into the storage hole, so that the oxide layer on the surface of the spot welding rod can be removed by friction.

[0022] 2. The present invention can drive the transmission short rod to slide on the bottom surface of the base plate through the cooperation between the first motor, the transmission sleeve and the connecting arc rod. Through the cooperation between the transmission short rod, the first connecting rod and the second connecting rod, the limit rod can be driven to rotate inside the base plate, and the limit frame can be driven to rotate together. Through the convex points at both ends of the limit frame, multi-point positioning of processing joints of different shapes can be performed, thereby improving the position stability of the processing joints during spot welding.

[0023] 3. The present invention can move the transmission frame through the cooperation between the second motor, the second rotating rod and the eccentric wheel, and provide elastic support for the transmission frame through the compression spring. The connection frame can move up and down through the cooperation between the transmission frame, the connecting block and the movable plate. When the connecting frame drives the spot welding rod to move downward and approach the processing joint, the fixed joint can be processed. The threaded rod is driven to rotate by external power, and the movable frame is driven to move above the base plate by the threaded rod, so that the working position of the spot welding rod can be adjusted according to the working needs.

[0024] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the support frame in the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting frame in the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning mechanism in the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the limit block in the present invention;

[0029] Figure 5 is a schematic diagram of the three-dimensional structure of the first rotating rod in the present invention;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the lifting mechanism in the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission groove in the present invention.

[0032] In the figure:

[0033] 1. Base plate; 2. Work plate;

[0034] 3. Positioning mechanism; 301. First motor; 302. Transmission sleeve; 303. Connecting arc rod; 304. Transmission rod; 305. Transmission short rod; 306. First connecting rod; 307. Second connecting rod; 308. Limit rod; 309. Limit frame; 310. Sliding block; 311. Sliding slot;

[0035] 4. Support frame; 5. Mobile frame; 6. Connecting frame;

[0036] 7. Power mechanism; 701. Hydraulic rod; 702. Transmission block; 703. First rotating rod; 704. Support block; 705. Spot welding rod; 706. Limit block; 707. Positioning frame; 708. Transmission groove; 709. Positioning block; 710. Transmission wheel; 711. Gear rod; 712. Connecting plate; 713. Storage hole;

[0037] 8. lifting mechanism; 81. limiting groove; 82. moving plate; 83. second motor; 84. second rotating rod; 85. eccentric wheel; 86. transmission frame; 87. connecting block; 88. supporting plate; 89. compression spring;

[0038] 9. Support groove; 10. Threaded rod. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1 to Figure 7 The present invention provides a technical solution: a high-precision spot welding machine for connector joint production, including a base plate 1, a working plate 2 is fixed to the upper surface of the base plate 1, a positioning mechanism 3 for fixing the processed joint is arranged on the outside of the base plate 1, and the positioning mechanism 3 includes two sets of limit rods 308 rotatably sleeved inside the base plate 1, and the top end of the limit rod 308 rotates through the base plate 1 and is fixedly sleeved on the limit frame 309.

[0041] Please refer to Figure 3 The positioning mechanism 3 includes a first motor 301 fixed to the bottom surface of the base plate 1, and the output end of the first motor 301 is fixedly sleeved with a transmission sleeve 302, and both ends of the transmission sleeve 302 are rotatably connected with connecting arc rods 303, and each connecting arc rod 303 is rotatably sleeved with a transmission rod 304 at one end away from the transmission sleeve 302, and a transmission short rod 305 is fixedly sleeved at the bottom end of the transmission rod 304, and both ends of the transmission short rod 305 are rotatably connected with a first connecting rod 306, and each first connecting rod 306 is rotatably connected to one end away from the transmission short rod 305. The second connecting rod 307 is fixedly sleeved at one end away from the first connecting rod 306.

[0042] The positioning mechanism 3 further includes two slide grooves 311 formed on the bottom surface of the base plate 1 , and a slider 310 fixedly sleeved on the top of the transmission rod 304 is slidably connected inside each slide groove 311 .

[0043] By adopting the above technical solution, through the cooperation between the first motor 301, the transmission sleeve 302 and the connecting arc rod 303, the transmission short rod 305 can be driven to slide on the bottom surface of the base plate 1, and through the cooperation between the transmission short rod 305, the first connecting rod 306 and the second connecting rod 307, the limit rod 308 and the limit frame 309 can be driven to rotate at the same time, and the convex points at both ends of the limit frame 309 can be used to perform multi-point positioning of the processing joint.

[0044] Please refer to Figure 1 , Figure 2 and Figure 6 A support frame 4 is fixed to one side of the base plate 1, and a moving frame 5 is slidably connected to one side of the support frame 4. A connecting frame 6 is arranged below the moving frame 5, and a lifting mechanism 8 is arranged above the moving frame 5 to drive the connecting frame 6 to move up and down. The lifting mechanism 8 includes a limiting groove 81 opened inside the moving frame 5, and a moving plate 82 fixed to the top of the connecting frame 6 is slidably sleeved inside the limiting groove 81. A connecting block 87 is fixed to the top surface of the moving plate 82, and a transmission frame 86 is fixed to the top of the connecting block 87. The transmission frame 86 is slidably connected to the inside of the transmission frame 86.

[0045] Please refer to Figure 6 The lifting mechanism 8 includes a second motor 83 fixed on the upper surface of the moving frame 5 , a second rotating rod 84 is fixed to the output end of the second motor 83 , and the second rotating rod 84 is fixedly sleeved inside the eccentric wheel 85 .

[0046] The lifting mechanism 8 further includes two support plates 88 fixed on the upper surface of the moving frame 5 , a compression spring 89 is fixed between the support plates 88 and the bottom surface of the transmission frame 86 , and a connecting block 87 is slidably connected between the two support plates 88 .

[0047] By adopting the above technical solution, the transmission frame 86 can be moved through the cooperation between the second motor 83, the second rotating rod 84 and the eccentric wheel 85, and the connecting frame 6 can be moved up and down through the cooperation between the transmission frame 86, the connecting block 87 and the movable plate 82. When the connecting frame 6 drives the spot welding rod 705 to move downward and approach the processing joint, the fixed joint can be processed.

[0048] Please refer to Figure 1 and Figure 6 A support groove 9 is provided on one side of the support frame 4 , and a threaded rod 10 is rotatably connected inside the support groove 9 . The threaded rod 10 is threadedly sleeved inside the moving frame 5 , and the moving frame 5 slides inside the support groove 9 .

[0049] By adopting the above technical solution, the threaded rod 10 is driven to rotate by external power, and the threaded rod 10 drives the movable frame 5 to move above the base plate 1, so that the working position of the spot welding rod can be adjusted according to the working needs.

[0050] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 A power mechanism 7 for spot welding the processed joints is arranged on the outside of the connecting frame 6. The power mechanism 7 includes a hydraulic rod 701 fixed on one side of the connecting frame 6 and a transmission groove 708 opened on one side of the connecting frame 6. A transmission block 702 is fixed to the bottom end of the hydraulic rod 701. A first rotating rod 703 is rotatably sleeved inside the transmission block 702. A support block 704 is fixed to the end of the first rotating rod 703 away from the transmission block 702. A spot welding rod 705 is arranged inside the support block 704. A positioning block 709 sliding inside the transmission groove 708 is fixedly sleeved on the periphery of the first rotating rod 703.

[0051] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 The power mechanism 7 also includes a transmission wheel 710 fixedly sleeved on the outer periphery of the first rotating rod 703, a gear rod 711 meshing with the transmission wheel 710 is fixed on one side of the connecting frame 6, a connecting plate 712 is fixed on the top of the connecting frame 6, and a storage hole 713 is opened on the bottom surface of the connecting plate 712.

[0052] By adopting the above technical solution, the first rotating rod 703 can be driven to move through the cooperation between the hydraulic rod 701 and the transmission block 702, and the positioning block 709 can be driven to slide inside the transmission groove 708. When the first rotating rod 703 moves to one side of the gear rod 711, the cooperation between the gear rod 711 and the transmission wheel 710 can make the first rotating rod 703 rotate during the rising process, and drive the spot welding rod 705 to perform a semicircular flip. When the transmission wheel 710 is away from the gear rod 711, the cooperation between the positioning block 709 and the transmission groove 708 can make the first rotating rod 703 continue to move, and drive the spot welding rod 705 to embed into the storage hole 713.

[0053] The power mechanism 7 further includes a limit block 706 rotatably sleeved on the periphery of the first rotating rod 703 , and both ends of the limit block 706 are slidably connected to a positioning frame 707 fixed to one side of the connecting frame 6 .

[0054] By adopting the above technical solution, when the first rotating rod 703 moves up and down, the transmission stability of the first rotating rod 703 can be improved through the cooperation between the limit block 706 and the positioning frame 707.

[0055] Working principle: Place the processing joint on the surface of the working plate 2, start the first motor 301, and through the cooperation between the first motor 301, the transmission sleeve plate 302 and the connecting arc rod 303, the transmission short rod 305 can be driven to slide on the bottom surface of the base plate 1. Through the cooperation between the transmission short rod 305, the first connecting rod 306 and the second connecting rod 307, the limit rod 308 can be driven to rotate inside the base plate 1, and the limit frame 309 can be driven to rotate together. Through the convex points at both ends of the limit frame 309, the processing joint can be positioned at multiple points, thereby improving the stability of the position of the processing joint during spot welding;

[0056] Start the hydraulic rod 701, and through the cooperation between the hydraulic rod 701 and the transmission block 702, the first rotating rod 703 can be driven to move, and the positioning block 709 can be driven to slide inside the transmission groove 708. When the first rotating rod 703 moves to one side of the gear rod 711, through the cooperation between the gear rod 711 and the transmission wheel 710, the first rotating rod 703 can be rotated during the rising process, and the spot welding rod 705 can be driven to perform a semicircular flip. When the transmission wheel 710 is away from the gear rod 711, the cooperation between the positioning block 709 and the transmission groove 708 can make the first rotating rod 703 continue to move, and drive the spot welding rod 705 to embed into the storage hole 713, and the oxide layer on the surface of the spot welding rod can be removed by friction. When the first rotating rod 703 moves up and down, the cooperation between the limit block 706 and the positioning frame 707 can improve the transmission stability of the first rotating rod 703.

[0057] Start the second motor 83, and the transmission frame 86 can be moved through the cooperation between the second motor 83, the second rotating rod 84 and the eccentric wheel 85. The compression spring 89 provides elastic support for the transmission frame 86. The transmission frame 86, the connecting block 87 and the movable plate 82 cooperate with each other, and the connecting frame 6 can move up and down. When the connecting frame 6 drives the spot welding rod 705 to move downward and close to the processing joint, the fixed joint can be processed. The threaded rod 10 is driven to rotate by external power, and the movable frame 5 is driven to move above the base plate 1 by the threaded rod 10. The working position of the spot welding rod can be adjusted according to the working needs.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A high-precision spot welding machine for connector joint production, comprising a base plate (1), characterized in that: A working plate (2) is fixed on the upper surface of the base plate (1), and a positioning mechanism (3) for fixing the processing joint is arranged on the outside of the base plate (1), and the positioning mechanism (3) comprises two groups of limiting rods (308) rotatably sleeved inside the base plate (1), and the top ends of the limiting rods (308) rotatably penetrate the base plate (1) and are fixedly sleeved on the limiting frame (309); A support frame (4) is fixed on one side of the base plate (1), a moving frame (5) is slidably connected to one side of the support frame (4), a connecting frame (6) is arranged below the moving frame (5), a lifting mechanism (8) for driving the connecting frame (6) to move up and down is arranged above the moving frame (5), the lifting mechanism (8) comprises a limiting groove (81) arranged inside the moving frame (5), a moving plate (82) fixed on the top of the connecting frame (6) is slidably sleeved inside the limiting groove (81), a connecting block (87) is fixed on the top surface of the moving plate (82), a transmission frame (86) is fixed on the top of the connecting block (87), and an eccentric wheel (85) is slidably connected inside the transmission frame (86); A power mechanism (7) for spot welding the processed joint is arranged outside the connecting frame (6), the power mechanism (7) comprising a hydraulic rod (701) fixed to a side surface of the connecting frame (6) and a transmission groove (708) opened on a side surface of the connecting frame (6), a transmission block (702) is fixed to the bottom end of the hydraulic rod (701), a first rotating rod (703) is rotatably sleeved inside the transmission block (702), a support block (704) is fixed to the end of the first rotating rod (703) away from the transmission block (702), a spot welding rod (705) is arranged inside the support block (704), and a positioning block (709) is fixedly sleeved on the outer periphery of the first rotating rod (703) and slides inside the transmission groove (708).

2. A high-precision spot welding machine for connector joint production according to claim 1, characterized in that: The positioning mechanism (3) comprises a first motor (301) fixed to the bottom surface of the base plate (1); the output end of the first motor (301) is fixedly sleeved with a transmission sleeve (302); both ends of the transmission sleeve (302) are rotatably connected with connecting arc rods (303); one end of each connecting arc rod (303) away from the transmission sleeve (302) is rotatably sleeved with a transmission rod (304); the bottom end of the transmission rod (304) is fixedly sleeved with a transmission short rod (305); both ends of the transmission short rod (305) are rotatably connected with a first connecting rod (306); one end of each first connecting rod (306) away from the transmission short rod (305) is rotatably connected with a second connecting rod (307); one end of the second connecting rod (307) away from the first connecting rod (306) is fixedly sleeved on the bottom end of a limiting rod (308).

3. A high-precision spot welding machine for connector joint production according to claim 2, characterized in that: The positioning mechanism (3) further comprises two slide grooves (311) formed on the bottom surface of the base plate (1), and each of the slide grooves (311) is slidably connected to a slider (310) fixedly sleeved on the top of the transmission rod (304).

4. A high-precision spot welding machine for connector joint production according to claim 1, characterized in that: A support groove (9) is provided on one side of the support frame (4), a threaded rod (10) is rotatably connected inside the support groove (9), the threaded rod (10) is threadedly sleeved inside the moving frame (5), and the moving frame (5) slides inside the support groove (9).

5. The high-precision spot welding machine for connector joint production according to claim 1, characterized in that: The lifting mechanism (8) comprises a second motor (83) fixed on the upper surface of the moving frame (5); a second rotating rod (84) is fixed to the output end of the second motor (83); and the second rotating rod (84) is fixedly sleeved inside the eccentric wheel (85).

6. A high-precision spot welding machine for connector joint production according to claim 5, characterized in that: The lifting mechanism (8) further comprises two support plates (88) fixed on the upper surface of the moving frame (5), a compression spring (89) is fixed between the support plates (88) and the bottom surface of the transmission frame (86), and the connecting block (87) is slidably connected between the two support plates (88).

7. A high-precision spot welding machine for connector joint production according to claim 1, characterized in that: The power mechanism (7) also includes a transmission wheel (710) fixedly sleeved on the periphery of the first rotating rod (703); a toothed rod (711) meshing with the transmission wheel (710) is fixed on one side of the connecting frame (6); a connecting plate (712) is fixed on the top of the connecting frame (6); and a receiving hole (713) is provided on the bottom surface of the connecting plate (712).

8. A high-precision spot welding machine for connector joint production according to claim 7, characterized in that At: The power mechanism (7) further comprises a limit block (706) rotatably sleeved on the periphery of the first rotating rod (703). Both ends of the limit block (706) are slidably connected to a positioning frame (707) fixed on a side of the connecting frame (6).

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