Resistance welding machine adaptive to multi-specification terminals

Abstract

The resistance welding machine comprises a bottom plate, a vertical bin is welded to one side of the top of the bottom plate, a first transverse platen is welded to the front side of the vertical bin, a static electrode arm is fixedly installed at the top of the vertical bin through a copper base, and a static electrode plate is installed at the front end of the static electrode arm. According to the resistance welding machine adaptive to the multi-specification terminals, when the terminals are placed in the concave cavity, the terminals are located between the limiting side strips on the two sides, the positions, located in the concave cavity, of the terminals are positioned, the terminals are located in the middle, the terminals are located under the electrode welding head, and the terminals are pressed and held in the middle of the electrode welding head and the static electrode plate; the terminal and the winding are welded more tightly, unsoldering is avoided, the welding quality is effectively improved, the distance between the limiting side strips on the two sides can be adjusted according to the size of the terminal, and terminals of different specifications can be placed in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance welding machines, in particular to a resistance welding machine adapted to terminals of multiple specifications. Background Art

[0002] Resistance welding machine refers to a welding device that uses the principle of resistance heating for welding. Resistance welding machines can be divided into different types according to different uses and requirements. From the welding method classification, there are spot welding machines, seam welding machines, projection welding machines and butt welding machines; from the electrode pressure form classification, there are lever type, electric cam type, pneumatic type, hydraulic type and pneumatic and hydraulic combined type.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: when welding the terminals on the stator or rotor of a motor, the larger the size of the motor, the larger the size of the stator and the rotor installed inside it, and the larger the terminals required for welding thereon. However, the current resistance welding machines, which are used to limit the positioning of the static electrodes on which the terminals are carried, can only limit the positioning of terminals of one size, and cannot adapt to terminals of different specifications for limiting the positioning and bearing, and the flexibility of adaptability is insufficient.

[0004] To this end, we propose a resistance welding machine that is suitable for terminals of multiple specifications. Utility Model Content

[0005] The utility model aims to provide a resistance welding machine adapted to terminals of various specifications, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A resistance welding machine adapted to terminals of multiple specifications, comprising: a base plate, a vertical bin welded to one side of the top of the base plate, and a resistance welding machine main unit fixedly installed inside the vertical bin, a horizontal table plate 1 welded to the front side of the vertical bin, a static electrode arm fixedly installed on the top of the vertical bin through a copper seat, a static electrode plate installed at the front end of the static electrode arm, a concave cavity is opened on the top of the static electrode plate, a driving source is fixedly installed in the inner cavity of the concave cavity and close to one end of the static electrode arm, and both movable ends of the driving source are fixedly installed with limiting side strips, a horizontal table plate 2 is welded to the front side of the vertical bin and located above the horizontal table plate 1, an electric telescopic rod is fixedly installed on the top of the horizontal table plate 2, a moving electrode arm is fixedly installed on the electric telescopic rod through a copper seat installed at its movable end, a moving electrode is fixedly provided at the front end of the moving electrode arm, and an electrode welding head is detachably installed on the bottom of the moving electrode.

[0008] As an improved technical solution, the driving source includes a guide seat, a T-shaped slide is provided on the side of the guide seat away from the static electrode arm, both sides of the T-shaped slide are slidably installed with I-shaped blocks, and the limiting side strip is fixed on the side of the I-shaped block away from the guide seat.

[0009] As an improved technical solution, a bidirectional screw rod is threadedly installed between the two I-shaped blocks through the threaded holes opened thereon, and knobs are fixedly installed at both ends of the bidirectional screw rod.

[0010] As an improved technical solution, a ceramic blocking strip is fixedly installed in the inner cavity of the concave cavity and located below the driving source, and a ceramic bolt is threadedly installed in the middle of the ceramic blocking strip away from the end surface of the static electrode arm.

[0011] As an improved technical solution, a threaded recessed hole matching the ceramic bolt is provided at a middle position of the ceramic blocking strip near an end face of the ceramic bolt, and a hexagonal recessed cavity is provided at the head end of the ceramic bolt.

[0012] As an improved technical solution, the bottom of the limiting side strip is in a non-contact state with the cavity surface of the cavity, and the end of the cavity close to the ceramic barrier strip is in a non-contact state with the ceramic barrier strip.

[0013] As an improved technical solution, a second threaded recessed hole is provided at the center of the bottom of the moving electrode, and a ceramic threaded rod threadably connected to the second threaded recessed hole is fixedly installed at the center of the top of the electrode welding head.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. According to the present invention, when placing the terminal in the concave cavity, the terminal is positioned between the limiting side strips on both sides, the terminal is positioned in the concave cavity, the terminal is located in the middle, the terminal is located directly below the electrode welding head, and the terminal is pressed in the middle of the electrode welding head and the static electrode plate to ensure that the welding between the terminal and the winding is tighter, and the desoldering is avoided, which effectively improves the welding quality. In addition, the spacing between the limiting side strips on both sides can be adjusted according to the size of the terminal, which is suitable for placing terminals of different specifications so that they can all be in the middle position, and it is also convenient to quickly place the terminal.

[0016] 2. In the present invention, when the terminal is placed in the concave cavity, the head end of the terminal will abut against the ceramic blocking strip, limiting the distance the terminal extends to prevent the terminal from excessively moving toward the static electrode arm. If the terminal is small in size and cannot abut against the ceramic blocking strip, screw the ceramic bolt into the inside of the threaded concave hole 1, fix the ceramic bolt on the ceramic blocking strip, select a ceramic bolt of a size that matches the terminal specification for installation, and when the terminal is placed, the head end of the terminal will abut against the ceramic bolt, limiting the distance the terminal extends to prevent the terminal from excessively penetrating and affecting the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a resistance welding machine adapted to terminals of multiple specifications;

[0018] Figure 2 It is a structural schematic diagram of a driving source in a resistance welding machine adapted to terminals of multiple specifications;

[0019] Figure 3 It is a schematic diagram of the explosion structure of a ceramic barrier strip and a ceramic bolt in a resistance welding machine adapted to terminals of multiple specifications;

[0020] Figure 4 It is a schematic diagram of the exploded structure of a moving electrode and an electrode welding head in a resistance welding machine adapted to terminals of multiple specifications;

[0021] In the figure: 1, bottom plate; 2, vertical bin; 3, horizontal table plate 1; 4, horizontal table plate 2; 5, electric telescopic rod; 6, moving electrode arm; 7, moving electrode; 71, threaded recessed hole 2; 8, electrode welding head; 81, ceramic threaded rod; 9, static electrode arm; 10, static electrode plate; 11, recessed cavity; 12, driving source; 121, guide seat; 122, T-shaped slide; 123, I-shaped block; 124, bidirectional screw rod; 125, knob; 13, limiting side strip; 14, ceramic blocking strip; 141, threaded recessed hole 1; 15, ceramic bolt; 151, hexagonal recessed cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figures 1 to 4The embodiment of the utility model provides a resistance welding machine adapted to terminals of multiple specifications, including: a bottom plate 1, a vertical bin 2 is welded on one side of the top of the bottom plate 1, and a resistance welding machine host is fixedly installed inside the vertical bin 2. The resistance welding machine and the resistance welding machine host are both existing mature technologies, so they are not described in detail. A horizontal table 3 is welded on the front side of the vertical bin 2, a static electrode arm 9 is fixedly installed on the top of the vertical bin 2 through a copper seat, a static electrode plate 10 is installed on the front end of the static electrode arm 9, a concave cavity 11 is opened on the top of the static electrode plate 10, a driving source 12 is fixedly installed in the inner cavity of the concave cavity 11 and close to one end of the static electrode arm 9, and both movable ends of the driving source 12 are fixedly installed with limiting side strips 13, and the limiting side strips 13 are ceramic plates. When the terminal is placed in the concave cavity 11, the terminal is in the The terminal is positioned at the concave cavity 11 between the limiting side strips 13 on both sides, so that the terminal is located in the middle position and is directly below the electrode welding head 8. The terminal is pressed in the middle of the electrode welding head 8 and the static electrode plate 10 to ensure that the welding between the terminal and the winding is tighter and avoid the occurrence of desoldering, which effectively improves the welding quality. The front side of the vertical warehouse 2 is welded with a horizontal table 4 above the horizontal table 1 3, and an electric telescopic rod 5 is fixedly installed on the top of the horizontal table 4, and the movable end of the electric telescopic rod 5 is located below the horizontal table 4. The electric telescopic rod 5 is fixedly installed with a moving electrode arm 6 through a copper seat installed at its movable end, and a moving electrode 7 is fixedly provided at the front end of the moving electrode arm 6, and an electrode welding head 8 is detachably installed at the bottom of the moving electrode 7.

[0025] The driving source 12 includes a guide seat 121, which is fixed on the cavity surface of the concave cavity 11 close to the static electrode arm 9. A T-shaped slide 122 is provided on the side of the guide seat 121 away from the static electrode arm 9. Both sides of the T-shaped slide 122 are slidably installed with an I-shaped block 123, and the limiting side strip 13 is fixed on the side of the I-shaped block 123 away from the guide seat 121.

[0026] A bidirectional screw rod 124 is threadedly installed between the two I-shaped blocks 123 through the threaded holes opened thereon, and the bidirectional screw rod 124 is rotatably installed on the static electrode plate 10 through bearings. Knobs 125 are fixedly installed at both ends of the bidirectional screw rod 124. The spacing between the limiting side strips 13 on both sides can be adjusted according to the size of the terminal. It is suitable for placing limiting side strips 13 of different specifications so that they can all be in the middle position, which is also convenient for quickly placing the terminal.

[0027] A ceramic blocking strip 14 is fixedly installed in the inner cavity of the concave cavity 11 and below the driving source 12. When the terminal is placed in the concave cavity 11, the head end of the terminal will contact the ceramic blocking strip 14, limiting the distance the terminal extends to prevent the terminal from excessively displacing toward the static electrode arm 9. A ceramic bolt 15 is threadedly installed at the middle position of the ceramic blocking strip 14 away from one end face of the static electrode arm 9. The ceramic bolt 15 has multiple lengths.

[0028] A threaded recessed hole 141 matched with the ceramic bolt 15 is provided at the middle position of the ceramic blocking strip 14 near one end face of the ceramic bolt 15. If the terminal is small in size and cannot contact the ceramic blocking strip 14, the ceramic bolt 15 is screwed into the threaded recessed hole 141 to fix the ceramic bolt 15 on the ceramic blocking strip 14. A ceramic bolt 15 of a size matching the terminal is selected according to the specifications of the terminal for installation. When the terminal is placed, the head end of the terminal will contact the ceramic bolt 15 to limit the extension distance of the terminal to avoid excessive penetration of the terminal affecting the welding effect. A hexagonal recessed cavity 151 is provided at the head end of the ceramic bolt 15.

[0029] The bottom of the limiting side strip 13 is in a non-contact state with the cavity surface of the cavity 11 , and the end of the cavity 11 close to the ceramic blocking strip 14 is in a non-contact state with the ceramic blocking strip 14 .

[0030] A threaded recessed hole 71 is provided at the center of the bottom of the movable electrode 7, and a ceramic threaded rod 81 threadedly connected to the threaded recessed hole 71 is fixedly installed at the center of the top of the electrode welding head 8. The electrode welding head 8 is screwed into the threaded recessed hole 71 through the ceramic threaded rod 81, so that the electrode welding head 8 can be detachably installed at the bottom of the movable electrode 7, and the electrode welding head 8 that is compatible with the terminal is selected for installation and use.

[0031] The working principle of the utility model is:

[0032] When in use, the process of adjusting the spacing between the limiting side strips 13 on both sides is as follows: the driving knob 125 drives the bidirectional screw rod 124 to rotate, and under the threaded transmission action of the bidirectional screw rod 124 and the threaded hole on the I-shaped block 123, the I-shaped blocks 123 on both sides are moved toward the middle or toward the knobs 125 on the corresponding side at the same time. During the movement, the I-shaped block 123 will drive the limiting side strips 13 to move in a linked manner, so as to adjust the spacing between the limiting side strips 13 on both sides;

[0033] First, fix the terminal on the winding of the stator or rotor, then place the bottom end of the terminal in the concave cavity 11 on the static electrode plate 10, extend the electric telescopic rod 5 to drive the electrode welding head 8 to move downward, so that the terminal is pressed between the electrode welding head 8 and the static electrode plate 10, and the terminal can be welded to the winding of the stator or rotor.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or 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 shall be included in the protection scope of the present invention.

Claims

1. A resistance welding machine adapted to terminals of various specifications, characterized in that: include: A bottom plate (1), a vertical bin (2) is welded on one side of the top of the bottom plate (1), and a resistance welding machine mainframe is fixedly installed inside the vertical bin (2), a horizontal table plate (3) is welded on the front side of the vertical bin (2), a static electrode arm (9) is fixedly installed on the top of the vertical bin (2) through a copper seat, a static electrode plate (10) is installed at the front end of the static electrode arm (9), a concave cavity (11) is opened on the top of the static electrode plate (10), and a driving source (11) is fixedly installed in the inner cavity of the concave cavity (11) and close to one end of the static electrode arm (9). 2), both movable ends of the driving source (12) are fixedly installed with limiting side bars (13), the front side of the vertical bin (2) and above the horizontal platform (3) are welded with a horizontal platform (4), the top of the horizontal platform (4) is fixedly installed with an electric telescopic rod (5), the electric telescopic rod (5) is fixedly installed with a moving electrode arm (6) through a copper seat installed at its movable end, the front end of the moving electrode arm (6) is fixedly provided with a moving electrode (7), and the bottom of the moving electrode (7) is detachably installed with an electrode welding head (8).

2. A resistance welding machine adapted to terminals of multiple specifications according to claim 1, characterized in that: The driving source (12) comprises a guide seat (121), a T-shaped slideway (122) is provided on a side of the guide seat (121) away from the static electrode arm (9), and I-shaped blocks (123) are slidably mounted on both sides of the interior of the T-shaped slideway (122), and a limiting side strip (13) is fixed on a side of the I-shaped block (123) away from the guide seat (121).

3. A resistance welding machine adapted to terminals of multiple specifications according to claim 2, characterized in that: A bidirectional screw rod (124) is threadedly mounted between the two I-shaped blocks (123) through a threaded hole opened thereon, and knobs (125) are fixedly mounted at both ends of the bidirectional screw rod (124).

4. A resistance welding machine adapted to terminals of multiple specifications according to claim 3, characterized in that: A ceramic blocking strip (14) is fixedly installed in the inner cavity of the concave cavity (11) and located below the driving source (12). A ceramic bolt (15) is threadedly installed at a middle position of the ceramic blocking strip (14) away from an end surface of the static electrode arm (9).

5. A resistance welding machine adapted to terminals of multiple specifications according to claim 4, characterized in that: The ceramic blocking strip (14) is provided with a threaded recessed hole (141) matched with the ceramic bolt (15) at a middle position near an end surface of the ceramic bolt (15), and the head end of the ceramic bolt (15) is provided with a hexagonal recessed cavity (151).

6. A resistance welding machine adapted to terminals of multiple specifications according to claim 5, characterized in that: The bottom of the limiting side strip (13) is in a non-contact state with the cavity surface of the cavity (11), and the end of the cavity (11) close to the ceramic blocking strip (14) is in a non-contact state with the ceramic blocking strip (14).

7. A resistance welding machine adapted to terminals of multiple specifications according to claim 6, characterized in that: A second threaded recessed hole (71) is provided at the center of the bottom of the movable electrode (7), and a ceramic threaded rod (81) threadedly connected to the second threaded recessed hole (71) is fixedly installed at the center of the top of the electrode welding head (8).

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