Automatic spot welding machine

Abstract

The utility model discloses an automatic spot welding machine which comprises a spot welding machine body, a driving mechanism is fixedly installed on the upper portion of the surface of the front end of the spot welding machine body, a movable opening is formed in the surface of the front end of the spot welding machine body and located below the driving mechanism, and an upper electrode base is movably connected in the movable opening. The top of the upper electrode holder is connected with the bottom of the driving mechanism, a lower electrode holder is fixedly connected to the position, below the upper electrode holder, of the surface of the front end of the spot welding machine body, an upper electrode rod and a lower electrode rod are assembled in the upper electrode holder and the lower electrode holder correspondingly, and a control device is fixedly installed on the end face of one side of the spot welding machine body. In combination with the structural design, the first clamping head and the second clamping head are arranged, so that the function of replacing the upper electrode stem and the lower electrode stem is achieved in the using process, the upper electrode stem and the lower electrode stem can be replaced on the same machine according to the requirements of different products, the universality is better, and the production cost of the products is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding machines, in particular to an automatic spot welding machine. Background Art

[0002] A spot welding machine is a mechanical device that adopts the principle of double-sided double-point overcurrent welding. During operation, two electrodes press on the workpiece, causing a certain contact resistance to form between the two layers of metal under the pressure of the two electrodes. When the welding current flows from one electrode to the other, instantaneously, heat fusion welding is formed at the two contact resistance points. Moreover, the welding current instantaneously flows from the other electrode along the two workpieces to this electrode to form a loop, and it will not damage the internal structure of the workpiece to be welded.

[0003] However, the upper welding head and the lower welding head of the existing automatic spot welding machine are integrally connected to the spot welding machine and cannot be replaced. When dealing with the diversity of products on the production line, it cannot meet the welding functions of multiple products, and the compatibility is poor, thus increasing the production cost of products. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic spot welding machine to solve the problem mentioned in the above background art that the upper welding head and the lower welding head of the existing automatic spot welding machine are integrally connected to the spot welding machine and cannot be replaced. When dealing with the diversity of products on the production line, it cannot meet the welding functions of multiple products, and the compatibility is poor, thus increasing the production cost of products.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic spot welding machine, including a spot welding machine main body. A driving mechanism is fixedly installed on the upper front surface of the spot welding machine main body. An activity port is opened below the driving mechanism on the front surface of the spot welding machine main body. An upper electrode seat is movably connected in the activity port, and the top of the upper electrode seat is connected to the bottom of the driving mechanism. A lower electrode seat is fixedly connected below the upper electrode seat on the front surface of the spot welding machine main body. An upper electrode rod and a lower electrode rod are respectively assembled in the upper electrode seat and the lower electrode seat. A control device is fixedly installed on one side end surface of the spot welding machine main body. The upper electrode seat includes a movable plate, a first connecting seat, and a first clamping head. The movable plate is movably connected in the activity port. One end of the movable plate away from the activity port is fixedly connected to the first connecting seat by bolts. One end of the first connecting seat away from the movable plate is fixedly connected to the first clamping head. The lower electrode seat includes a support plate, a second connecting seat, and a second clamping head. The support plate is fixedly connected to the front surface of the spot welding machine main body. One end of the support plate away from the spot welding machine main body is fixedly connected to the second connecting seat by bolts. One end of the second connecting seat away from the support plate is fixedly connected to the second clamping head.

[0006] Preferably, the first clamping head includes an upper clamping member, a lower clamping member and a fastener. The upper clamping member and the lower clamping member are designed relatively. Connecting blocks are fixedly connected to both sides of the outer walls of the upper clamping member and the lower clamping member, and the two connecting blocks are connected to each other through the fastener.

[0007] Preferably, the structural design of the first clamping head is the same as that of the second clamping head.

[0008] Preferably, the driving mechanism includes a driving device and a telescopic cylinder. The telescopic cylinder is fixedly installed on the front surface of the main body of the spot welder through a mounting seat. The driving device is fixedly connected to the top of the telescopic cylinder, and the bottom of the telescopic cylinder is fixedly connected to the upper clamping member in the first clamping head.

[0009] Preferably, the upper electrode rod includes a welding rod, a first clamping block and a second clamping block. Clamping grooves are formed between the surfaces of the first clamping block and the second clamping block, and the welding rod is assembled in the clamping grooves. The first clamping block and the second clamping block are connected by bolts, and a plurality of connectors are fixedly installed on the surface of the welding rod.

[0010] Preferably, the structural design of the upper electrode rod is the same as that of the lower electrode rod.

[0011] Advantages

[0012] Compared with the existing technology, the advantages of the present utility model are as follows:

[0013] Combined with the structural design of the present utility model, by providing the first clamping head and the second clamping head, the functions of replacing the upper electrode rod and the lower electrode rod are achieved during use. According to the requirements of different products, the upper electrode rod and the lower electrode rod can be replaced on the same machine, with better compatibility and effectively reducing the production cost of products. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural schematic diagram of the first clamping head of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the upper electrode rod of the present utility model;

[0017] Figure 4 is the enlarged structural schematic diagram at A of the present utility model.

[0018] 1. Main body of the spot welder; 2. Driving mechanism; 3. Control device; 4. Movable opening; 5. Upper electrode seat;

[0019] 6. Lower electrode base; 7. Upper electrode rod; 8. Lower electrode rod; 21. Driving device; 22. Telescopic device;

[0020] 51. Movable plate; 52. First connecting seat; 53. First clamping head; 61. Support plate; 62. Second connecting seat;

[0021] 63. Second clamping head; 71. First clamping block; 72. Second clamping block; 73. Welding rod; 74. Clamping groove;

[0022] 75. Connector; 531. Upper clamping member; 532. Lower clamping member; 533. Fastener; 534. Connecting block. Detailed implementation mode

[0023] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Such as Figures 1-4 It is a structural schematic diagram of an automatic spot welder in a preferred embodiment of the present utility model. In this embodiment, an automatic spot welder includes a spot welder main body 1. A driving mechanism 2 is fixedly installed above the front surface of the spot welder main body 1. An activity port 4 is opened below the driving mechanism 2 on the front surface of the spot welder main body 1. An upper electrode base 5 is movably connected in the activity port 4, and the top of the upper electrode base 5 is connected to the bottom of the driving mechanism 2. Through the operation of the driving mechanism 2, the upper electrode base 5 is driven to realize the function of moving up and down. And a lower electrode base 6 is fixedly connected below the upper electrode base 5 on the front surface of the spot welder main body 1. At the same time, an upper electrode rod 7 and a lower electrode rod 8 are respectively assembled in the upper electrode base 5 and the lower electrode base 6. A control device 3 is fixedly installed on one end surface of the spot welder main body 1. This structural design plays a role in controlling the operation of the overall spot welder.

[0026] In this embodiment, the upper electrode base 5 includes a movable plate 51, a first connecting seat 52, and a first clamping head 53. The movable plate 51 is movably connected within the movable opening 4. This structural design plays a role in limiting the movable plate 51. A first connecting seat 52 is fixedly connected to one end of the movable plate 51 away from the movable opening 4 by bolts. During subsequent use, the first connecting seat 52 may be bent or otherwise damaged during use. The bolt connection facilitates subsequent maintenance, disassembly, and assembly. A first clamping head 53 is fixedly connected to one end of the first connecting seat 52 away from the movable plate 51. The first connecting seat 52 and the first clamping head 53 are integrally formed, increasing the connection strength therebetween.

[0027] In this embodiment, the lower electrode base 6 includes a support plate 61, a second connecting seat 62, and a second clamping head 63. The support plate 61 is fixedly connected to the front surface of the spot welder main body 1, playing a role in supporting the second clamping head 63. A second connecting seat 62 is fixedly connected to one end of the support plate 61 away from the spot welder main body 1 by bolts. During use, when the upper electrode base 5 presses down, it will exert a certain pressure on the lower electrode base 6. Therefore, the support plate 61 is prone to bending or other phenomena during use. This structural design facilitates subsequent maintenance, disassembly, and assembly. A second clamping head 63 is fixedly connected to one end of the second connecting seat 62 away from the support plate 61, increasing the connection strength therebetween.

[0028] In this embodiment, the first clamping head 53 includes an upper clamping member 531, a lower clamping member 532, and a fastener 533. The upper clamping member 531 and the lower clamping member 532 are designed to face each other. Connecting blocks 534 are fixedly connected to both outer sides of the upper clamping member 531 and the lower clamping member 532. The two connecting blocks 534 are connected to each other by the fastener 533. A second clamping block 72 is clamped and connected between the upper clamping member 531 and the lower clamping member 532. Due to the different types and sizes of the electrode rods during the adaptation process, the distance between the upper clamping member 531 and the lower clamping member 532 can be adjusted by the fastener 533, thereby achieving the function of adapting to various electrode rods, and the adaptability is relatively strong.

[0029] In this embodiment, the structural design of the first clamping head 53 is the same as that of the second clamping head 63.

[0030] In this embodiment, the driving mechanism 2 includes a driving device 21 and a telescopic cylinder 22. The telescopic cylinder 22 is fixedly installed on the front surface of the spot welder main body 1 through a mounting seat. A driving device 21 is fixedly connected to the top of the telescopic cylinder 22, and the bottom of the telescopic cylinder 22 is fixedly connected to the upper clamping member 531 of the first clamping head 53. By operating the driving device 21, the telescopic cylinder 22 moves up and down, thereby realizing the function of the first clamping head 53 moving up and down.

[0031] In this embodiment, the upper electrode rod 7 includes a welding rod 73, a first clamping block 71 and a second clamping block 72. Clamping grooves 74 are formed between the surfaces of the first clamping block 71 and the second clamping block 72. The welding rod 73 is assembled in the clamping grooves 74. The first clamping block 71 and the second clamping block 72 are connected by bolts. After long-term use, the welding effect of the welding rod 73 may be poor. It is convenient to replace the welding rod 73, thereby reducing the use cost. A plurality of connectors 75 are fixedly installed on the surface of the welding rod 73, which serves to connect the welding rod 73.

[0032] In this embodiment, the structural design of the upper electrode rod 7 is the same as that of the lower electrode rod 8.

[0033] The above content is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. An automatic spot welding machine, comprising a spot welding machine body (1), characterized in that: A driving mechanism (2) is fixedly installed on the front end surface of the spot welding machine body (1), a movable opening (4) is provided on the front end surface of the spot welding machine body (1) below the driving mechanism (2), an upper electrode seat (5) is movably connected in the movable opening (4), and the top of the upper electrode seat (5) is connected to the bottom of the driving mechanism (2), a lower electrode seat (6) is fixedly connected in the front end surface of the spot welding machine body (1) below the upper electrode seat (5), an upper electrode rod (7) and a lower electrode rod (8) are respectively installed in the upper electrode seat (5) and the lower electrode seat (6), a control device (3) is fixedly installed on one end surface of the spot welding machine body (1), and the upper electrode seat (5) includes a movable plate (51), a first connecting seat (52) and a first connecting seat (53). The movable plate (51) is movably connected to the movable opening (4); the end of the movable plate (51) away from the movable opening (4) is fixedly connected to the first connecting seat (52) by bolts; the end of the first connecting seat (52) away from the movable plate (51) is fixedly connected to the first clamping head (53); the lower electrode holder (6) comprises a support plate (61), a second connecting seat (62) and a second clamping head (63); the support plate (61) is fixedly connected to the front end surface of the spot welding machine body (1); the end of the support plate (61) away from the spot welding machine body (1) is fixedly connected to the second connecting seat (62) by bolts; the end of the second connecting seat (62) away from the support plate (61) is fixedly connected to the second clamping head (63).

2. An automatic spot welding machine according to claim 1, characterized in that: The first clamping head (53) comprises an upper clamping piece (531), a lower clamping piece (532) and a fastener (533); the upper clamping piece (531) and the lower clamping piece (532) are designed to be relative to each other; connecting blocks (534) are fixedly connected to both sides of the outer walls of the upper clamping piece (531) and the lower clamping piece (532); and the two connecting blocks (534) are connected to each other via a fastener (533).

3. An automatic spot welding machine according to claim 1, characterized in that: The structural design of the first clamping head (53) is the same as the structural design of the second clamping head (63).

4. The automatic spot welding machine according to claim 1, characterized in that: The driving mechanism (2) comprises a driving device (21) and a telescopic cylinder (22); the telescopic cylinder (22) is fixedly mounted on the front end surface of the spot welding machine body (1) via a mounting seat; the top of the telescopic cylinder (22) is fixedly connected to the driving device (21); and the bottom of the telescopic cylinder (22) is fixedly connected to an upper clamping piece (531) in the first clamping head (53).

5. The automatic spot welding machine according to claim 1, characterized in that: The upper electrode rod (7) comprises a welding rod (73), a first clamping block (71) and a second clamping block (72); a clamping groove (74) is provided between the surfaces of the first clamping block (71) and the second clamping block (72); the welding rod (73) is mounted in the clamping groove (74); the first clamping block (71) and the second clamping block (72) are connected by bolts; and a plurality of joints (75) are fixedly mounted on the surface of the welding rod (73).

6. An automatic spot welding machine according to claim 5, characterized in that: The structural design of the upper electrode rod (7) is the same as that of the lower electrode rod (8).

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