Automatic welding rod replacing device of spot welding machine

Abstract

The utility model is applicable to the technical field of spot welding, and provides an automatic welding rod changing device of a spot welding machine, which comprises a mounting frame, a U-shaped frame is arranged on one side of the mounting frame, two symmetrical fixing plates are fixed on one side of the U-shaped frame, first rotating holes are formed in the tops of the fixing plates, and a clamping component is rotatably matched between the two first rotating holes; the device solves the problem that when a welding rod of an existing spot welding machine is replaced, workers need to manually operate and replace the welding rod, and the working efficiency is low, one ends of the two bent plates are made to be close to or far away from each other, the welding rod is clamped by the clamping blocks fixed to the ends of the two bent plates, the stability of the welding process is improved, and the welding quality is improved. And by adjusting the height in the spot welding process, adjusting the distance between a clamping structure and a spot welding rod used in the spot welding process, driving a circular mounting ring to rotate by a driving shaft and arranging a recycling frame, the whole device can achieve automatic welding changing of the spot welding machine, and the spot welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding, and more specifically, to an automatic welding rod changing device for a spot welding machine. Background Art

[0002] The spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, the 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, an instantaneous heat weld 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] When replacing welding rods in existing spot welding machines, workers need to manually operate the replacement, which is very inconvenient. In addition, if a welding rod is used up, it is necessary to put down the work at hand and take another welding rod from the welding rod bag, resulting in low work efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automatic welding rod changing device for a spot welding machine, which can realize automatic welding rod changing of the spot welding machine by adjusting the height of the spot welding process, the distance between the clamping structure used in the spot welding process and the spot welding rod, the rotation of the circular mounting ring driven by the driving shaft, and the setting of a recovery frame, so that the entire device can realize automatic welding rod changing of the spot welding machine, thereby improving the efficiency of spot welding.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic welding rod changing device for a spot welding machine comprises a mounting frame, a U-shaped frame is arranged on one side of the mounting frame, two symmetrical fixing plates are fixed on one side of the U-shaped frame, a first rotating hole is opened on the top of the fixing plate, and a clamping component is rotatably matched between the two first rotating holes.

[0007] The clamping assembly includes two first I-shaped plates, a first connecting shaft is fixed to the inner wall of the first I-shaped plate, the first connecting shaft is rotatably matched with the first rotating hole, a second connecting shaft is fixed to the inner wall of the first I-shaped plate, and a bending plate is rotatably matched with the peripheral side of the second connecting shaft.

[0008] The clamping assembly also includes a second I-shaped plate, and two symmetrical third connecting shafts are fixed to the inner wall of the second I-shaped plate. The two third connecting shafts are respectively rotatably matched with the two bending plates.

[0009] The utility model is further configured as follows: a center hole is opened on one side of the second I-shaped plate.

[0010] A first side plate is fixed to the inner wall of the U-shaped frame, a first cylinder is fixedly installed on one side of the first side plate, a telescopic shaft of the first cylinder passes through the inner wall of the U-shaped frame, and the output shaft of the first cylinder is slidably matched with the U-shaped frame, and the telescopic end of the first cylinder is fixedly connected to the center hole.

[0011] The utility model is further configured as follows: a lifting groove is provided on the inner wall of the mounting frame, a T-shaped plate is slidably fitted in the lifting groove, an L-shaped plate is fixed on one side of the T-shaped plate, and a horizontal groove is provided on the inner wall of the L-shaped plate.

[0012] A sliding block is fixed on one side of the first side plate, and the sliding block is slidably fitted in the horizontal groove.

[0013] The utility model is further configured as follows: a second cylinder is fixedly installed on the inner wall of the L-shaped plate, and a telescopic end of the second cylinder is fixedly connected to one side of the first side plate.

[0014] The utility model is further configured as follows: a third cylinder is fixedly installed on the top of the mounting frame, the telescopic shaft of the third cylinder passes through the top of the mounting frame, and the output shaft of the third cylinder is slidably matched with the mounting frame, and the telescopic end of the third cylinder is fixedly connected to the top of the T-shaped plate.

[0015] The utility model is further configured as follows: a driving motor is fixedly mounted on the outer top of the mounting frame, an output shaft of the driving motor passes through the outer top of the mounting frame, and the output shaft of the driving motor is slidably matched with the mounting frame.

[0016] The output end of the driving motor is fixedly connected to a driving shaft, the peripheral side of the driving shaft is fixedly connected to a circular mounting ring, and a spot welding rod is arranged on the top of the circular mounting ring.

[0017] The utility model is further configured as follows: a support plate is fixed on one side of the mounting frame below the circular mounting ring, and a recovery frame is arranged on the top of the support plate.

[0018] The advantages of the utility model are:

[0019] 1. The utility model drives the second I-shaped plate to make horizontal movement to the left or right, and drives the two bent plates to make rotational movement centered on the third connecting axis, so that one end of the two bent plates approaches or moves away from each other, and the clamping block fixed at one end of the two bent plates clamps the welding rod, thereby improving the stability of the welding process and avoiding the welding rod from falling off.

[0020] 2. The utility model realizes height adjustment of the spot welding process by sliding the T-shaped plate up and down in the lifting groove, and realizes adjustment of the distance between the clamping structure used in the spot welding process and the spot welding rod by sliding the slider in the horizontal groove. In addition, the circular mounting ring is driven to rotate by the rotation of the driving shaft, and the recovery frame is set. The whole device can realize automatic welding of the spot welding machine and the recovery of the welding rod, thereby improving the efficiency of spot welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of an automatic welding rod changing device for a spot welding machine.

[0022] Figure 2 For this utility model Figure 1 A is an enlarged schematic diagram.

[0023] Figure 3 This is a structural schematic diagram of another angle of an automatic welding rod changing device for a spot welding machine according to the utility model.

[0024] Figure 4 For this utility model Figure 3 A magnified schematic diagram of B.

[0025] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of C in the middle

[0026] Figure 6 It is a structural schematic diagram of the clamping assembly of the utility model.

[0027] In the figure: 1, mounting frame; 2, U-shaped frame; 3, clamping assembly; 4, driving shaft; 101, lifting slot; 102, third cylinder; 103, support plate; 104, recovery frame; 105, driving motor; 201, fixing plate; 202, first rotating hole; 203, first side plate; 204, first cylinder; 205, T-shaped plate; 206, L-shaped plate; 207, horizontal slot; 208, slider; 209, second cylinder; 301, first I-shaped plate; 302, first connecting shaft; 303, second connecting shaft; 304, bending plate; 305, third connecting shaft; 306, second I-shaped plate; 307, clamping block; 308, center hole; 401, circular mounting ring; 402, spot welding rod. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] Embodiment 1

[0032] See also Figure 1-6 , the utility model provides the following technical solutions:

[0033] Specifically, it refers to an automatic welding rod changing device for a spot welding machine, comprising a mounting frame 1, a U-shaped frame 2 is arranged on one side of the mounting frame 1, two symmetrical fixing plates 201 are fixed on one side of the U-shaped frame 2, a first rotating hole 202 is opened on the top of the fixing plate 201, and a clamping component 3 is rotatably matched between the two first rotating holes 202; the clamping component 3 includes two first I-shaped plates 301, a first connecting shaft 302 is fixed to the inner wall of the first I-shaped plate 301, the first connecting shaft 302 is rotatably matched with the first rotating hole 202, a second connecting shaft 303 is fixed to the inner wall of the first I-shaped plate 301, and the second connecting shaft 303 is rotatably matched with the side surface The U-shaped frame 2 has a bent plate 304; the clamping assembly 3 also includes a second I-shaped plate 306, and two symmetrical third connecting shafts 305 are fixed to the inner wall of the second I-shaped plate 306, and the two third connecting shafts 305 are respectively rotatably matched with the two bent plates 304; a center hole 308 is opened on one side of the second I-shaped plate 306; a first side plate 203 is fixed to the inner wall of the U-shaped frame 2, and a first cylinder 204 is fixedly installed on one side of the first side plate 203, the telescopic shaft of the first cylinder 204 passes through the inner wall of the U-shaped frame 2, and the output shaft of the first cylinder 204 is slidably matched with the U-shaped frame 2, and the telescopic end of the first cylinder 204 is fixedly connected to the center hole 308.

[0034] The specific application of this embodiment is: start the first cylinder 204 fixedly installed on one side of the first side plate 203, drive the second I-shaped plate 306 to make horizontal movement to the left or right, and the first connecting shaft 302 fixed on the inner wall of the first I-shaped plate 301 rotates and cooperates in the first rotating hole 202 opened on the top of the fixed plate 201. The first I-shaped plate 301 provides a horizontal traction force to the left or right for the bending plate 304, driving the two bending plates 304 to make a rotational movement centered on the third connecting shaft 305, so that one end of the two bending plates 304 approaches or moves away from each other, and the clamping block 307 fixed at one end of the two bending plates 304 clamps the welding rod, thereby improving the stability of the welding process and avoiding the welding rod from falling off.

[0035] Embodiment 2

[0036] See also Figure 1-6, the second embodiment is improved as follows on the basis of the first embodiment. Specifically, a lifting groove 101 is provided on the inner wall of the mounting frame 1, and a T-shaped plate 205 is slidably fitted in the lifting groove 101. An L-shaped plate 206 is fixed on one side of the T-shaped plate 205, and a horizontal groove 207 is provided on the inner wall of the L-shaped plate 206; a slider 208 is fixed on one side of the first side plate 203, and the slider 208 is slidably fitted in the horizontal groove 207; a second cylinder 209 is fixedly installed on the inner wall of the L-shaped plate 206, and the telescopic end of the second cylinder 209 is fixedly connected to one side of the first side plate 203; a third cylinder 102 is fixedly installed on the top of the mounting frame 1, and the telescopic shaft of the third cylinder 102 passes through the top of the mounting frame 1 The output shaft of the third cylinder 102 is slidably matched with the mounting frame 1, and the telescopic end of the third cylinder 102 is fixedly connected to the top of the T-shaped plate 205; a driving motor 105 is fixedly installed on the outer top of the mounting frame 1, and the output shaft of the driving motor 105 passes through the outer top of the mounting frame 1, and the output shaft of the driving motor 105 is slidably matched with the mounting frame 1; the output end of the driving motor 105 is fixedly connected to the driving shaft 4, and a circular mounting ring 401 is fixedly connected to the side surface of the driving shaft 4, and a spot welding rod 402 is arranged on the top of the circular mounting ring 401; a support plate 103 is fixed to one side of the mounting frame 1 below the circular mounting ring 401, and a recovery frame 104 is arranged on the top of the support plate 103.

[0037] A specific application of this embodiment is: first, the third cylinder 102 fixedly installed on the top of the mounting frame 1 can be started to drive the T-shaped plate 205 to slide up and down in the lifting groove 101, so as to adjust the height of the spot welding process and ensure that the welding rod replacement process can be consistent with the height of the spot welding rod 402, so as to facilitate the subsequent welding replacement process. The specific welding replacement process is: start the second cylinder 209 fixedly installed on the inner wall of the L-shaped plate 206, so that the slider 208 slides in the horizontal groove 207, so as to adjust the clamping structure used in the spot welding process. The distance between the structure and the spot welding rod 402, wherein a plurality of spot welding rods 402 are arranged on the top of the circular mounting ring 401, and the driving motor 105 can be started to rotate the driving shaft 4, and the circular mounting ring 401 fixedly connected to the side surface of the driving shaft 4 can be driven to rotate, so that one end of the spot welding rod 402 can be rotated to the side of the welding rod clamping structure, and the used welding rod can be placed in the recycling frame 104 arranged on the top of the support plate 103. The whole device can realize automatic welding of the spot welding machine and recycling of welding rods, thereby improving the efficiency of spot welding.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0042] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic welding rod changing device for a spot welding machine, comprising a mounting frame (1), characterized in that: A U-shaped frame (2) is provided on one side of the mounting frame (1), two symmetrical fixing plates (201) are fixed on one side of the U-shaped frame (2), a first rotating hole (202) is provided on the top of the fixing plate (201), and a clamping assembly (3) is rotatably engaged between the two first rotating holes (202); The clamping assembly (3) comprises two first I-shaped plates (301), a first connecting shaft (302) being fixed on the inner wall of the first I-shaped plate (301), the first connecting shaft (302) being rotatably matched with the first rotating hole (202), a second connecting shaft (303) being fixed on the inner wall of the first I-shaped plate (301), and a bending plate (304) being rotatably matched with the circumferential side surface of the second connecting shaft (303); The clamping assembly (3) further comprises a second I-shaped plate (306), the inner wall of which is fixed two symmetrical third connecting shafts (305), the two third connecting shafts (305) respectively rotatably cooperating with the two bending plates (304).

2. The automatic welding rod changing device for a spot welding machine according to claim 1, characterized in that: A central hole (308) is formed on one side of the second I-shaped plate (306); A first side plate (203) is fixed to the inner wall of the U-shaped frame (2); a first cylinder (204) is fixedly mounted on one side of the first side plate (203); a telescopic shaft of the first cylinder (204) passes through the inner wall of the U-shaped frame (2); an output shaft of the first cylinder (204) is slidably matched with the U-shaped frame (2); and a telescopic end of the first cylinder (204) is fixedly connected to a center hole (308).

3. The automatic welding rod changing device of a spot welding machine according to claim 2, characterized in that: The inner wall of the mounting frame (1) is provided with a lifting groove (101), a T-shaped plate (205) is slidably fitted in the lifting groove (101), an L-shaped plate (206) is fixed to one side of the T-shaped plate (205), and a horizontal groove (207) is provided on the inner wall of the L-shaped plate (206); A sliding block (208) is fixed to one side of the first side plate (203), and the sliding block (208) is slidably fitted in the horizontal groove (207).

4. The automatic welding rod changing device for a spot welding machine according to claim 3, characterized in that: A second cylinder (209) is fixedly mounted on the inner wall of the L-shaped plate (206), and a telescopic end of the second cylinder (209) is fixedly connected to one side of the first side plate (203).

5. The automatic welding rod changing device for a spot welding machine according to claim 4, characterized in that: A third cylinder (102) is fixedly mounted on the top of the mounting frame (1); a telescopic shaft of the third cylinder (102) passes through the top of the mounting frame (1); an output shaft of the third cylinder (102) is slidably matched with the mounting frame (1); and a telescopic end of the third cylinder (102) is fixedly connected to the top of the T-shaped plate (205).

6. The automatic welding rod changing device for a spot welding machine according to claim 5, characterized in that: A drive motor (105) is fixedly mounted on the outer top of the mounting frame (1), an output shaft of the drive motor (105) passes through the outer top of the mounting frame (1), and the output shaft of the drive motor (105) is slidably matched with the mounting frame (1); The output end of the driving motor (105) is fixedly connected to a driving shaft (4), the peripheral side of the driving shaft (4) is fixedly connected to a circular mounting ring (401), and a spot welding rod (402) is arranged on the top of the circular mounting ring (401).

7. The automatic welding rod changing device for a spot welding machine according to claim 6, characterized in that: A support plate (103) is fixed on one side of the mounting frame (1) below the circular mounting ring (401), and a recovery frame (104) is arranged on the top of the support plate (103).

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