Solder splashing prevention structure of spot welding machine

Abstract

The utility model belongs to the field of spot welding machines, and particularly relates to a spot welding machine welding flux splashing prevention structure which comprises a control box, electrode arms are fixedly installed on the left side and the right side of the top end of the control box, motors are fixedly installed in the ends, away from the control box, of the electrode arms, and cleaning assemblies are arranged on the surfaces of the sides, close to the motors, of the electrode arms. Before welding, the sliding block is rotated to drive the cleaning strip to clean the surface of the motor, so that oxides and impurities attached to the surface of the motor are cleaned up, the situation that conduction of current is affected in the welding process is avoided, heat is evenly distributed, and then the situation that welding flux splashes is avoided; in the welding process, the sliding plate extends out of the hollow rotating plate, then the hollow rotating plate rotates and is unfolded, at the moment, the hollow rotating plate and the sliding plate shield the welding position, welding flux possibly splashed in the welding process is prevented from making contact with an operator, and therefore the welding safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of spot welding machines, in particular to a solder splash prevention structure for spot welding machines. Background Art

[0002] A spot welder is a device used for metal welding. The metal parts to be welded are placed between electrodes, and then appropriate welding parameters are set through the control system. When the power is turned on, current flows through the electrodes through the metal parts, generating high temperatures that cause them to melt and fuse together.

[0003] However, during the use of the current spot welding machine, oxides or other impurities remain on the surface of the motor, which will cause solder splashing during welding. At this time, the splashing solder may come into contact with the operator, thereby causing a safety hazard. Therefore, a spot welding machine solder splashing prevention structure is proposed to address the above problem. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and avoid the problem of potential safety hazards caused by solder splashing, the utility model proposes a solder splash prevention structure for a spot welding machine.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a solder splash prevention structure for a spot welding machine, comprising a control box, electrode arms fixedly mounted on both the left and right sides of the top of the control box, a motor fixedly mounted inside the electrode arms at one end away from the control box, a cleaning component provided on the surface of the electrode arms close to the motor, and a protective component provided on the surface of the cleaning component;

[0006] The cleaning assembly includes a handle fixedly mounted on the surface of the electrode arm, a telescopic rod fixedly mounted on the bottom end of the handle, a sliding ring slidably connected to the surface of the electrode arm, an annular groove is provided on the surface in the middle of the sliding ring, an annular rod is fixedly mounted inside the annular groove, a slider is slidably connected to the surface of the annular rod, and a cleaning strip is fixedly mounted on the side of the slider close to the center of the sliding ring.

[0007] Preferably, a protrusion is fixedly installed at the bottom end of the telescopic rod, and a slot is provided at the top end of the sliding ring to fit the protrusion. The telescopic rod can push the sliding ring to slide on the surface of the electrode arm, and the telescopic rod can limit the position of the sliding ring.

[0008] Preferably, the slider is slidably connected to the inside of the annular groove, and the side of the cleaning strip away from the slider is in adaptive contact with the motor. When the slider is pushed to move, the cleaning strip is driven to clean the surface of the motor to prevent oxides and impurities on the surface of the motor from affecting welding.

[0009] Preferably, the protection component includes a fixed plate fixedly mounted on the bottom end of the sliding ring, the surface of the fixed plate away from the center of the sliding ring is rotatably connected to a hollow rotating plate, the end of the hollow rotating plate close to the fixed plate is fixedly connected to a torsion spring, the internal sliding connection of the bottom of the hollow rotating plate is connected to a sliding plate, the top of the sliding plate is fixedly mounted with a magnetic block, the top wall of the inner wall of the hollow rotating plate is fixedly mounted with an electromagnet, the side of the fixed plate close to the center of the sliding ring is fixedly mounted with an electric cylinder, and the surface of the handle is fixedly mounted with a control switch.

[0010] Preferably, there are six fixing plates distributed circumferentially at the bottom of the sliding ring, and one end of the torsion spring away from the hollow rotating plate is fixedly mounted on the surface of the fixing plate.

[0011] Preferably, the proximal ends of the magnetic block and the electromagnet are the same type of magnetic poles, the electromagnet and the electric cylinder are electrically connected to the control switch, the output shaft of the electric cylinder is fixedly connected to the side of the hollow rotating plate close to the fixed plate, the operator can press the control switch to make the electromagnet repel the magnetic block, at this time the magnetic block drives the sliding plate away from the hollow rotating plate, and at the same time the electric cylinder is driven to push the hollow rotating plate to rotate, at this time the hollow rotating plate and the sliding plate are unfolded to block the metal parts during the welding process to prevent solder splashing from contacting the operator and causing safety hazards.

[0012] The utility model is beneficial in that:

[0013] The utility model rotates the slider to drive the cleaning strip to clean the surface of the motor before welding, thereby cleaning the oxides and impurities adhering to the surface of the motor, thereby avoiding being affected by the conduction of current during the welding process, thereby making the heat distribution uniform, and thus avoiding the situation of solder splashing; during the welding process, the sliding plate extends out of the hollow rotating plate, and then the hollow rotating plate rotates and unfolds. At this time, the hollow rotating plate and the sliding plate shield the welding point, avoiding the solder that may splash during the welding process from contacting the operator, thereby improving the safety during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the local structure of the electrode arm of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the slider surface of the present utility model;

[0018] Figure 4 For the utility model Figure 2 A schematic diagram of the structure enlarged in the middle;

[0019] Figure 5 This is a schematic diagram of the cross-sectional side view of the hollow rotating plate of the present invention;

[0020] Figure 6 For the utility model Figure 5 Schematic diagram of the structure enlarged at point B.

[0021] In the figure: 1. Control box; 2. Electrode arm; 3. Motor; 4. Cleaning assembly; 41. Handle; 42. Telescopic rod; 43. Sliding ring; 44. Annular groove; 45. Annular rod; 46. Slider; 47. Cleaning strip; 5. Protective assembly; 51. Fixed plate; 52. Hollow rotating plate; 53. Torsion spring; 54. Sliding plate; 55. Magnetic block; 56. Electromagnet; 57. Electric cylinder; 58. Control switch. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] The following is combined with Figure 1 —6 Further details of this application,

[0024] The present application discloses a spot welding machine solder splash prevention structure. Figure 1 A solder splash prevention structure for a spot welding machine includes a control box 1, electrode arms 2 are fixedly mounted on both the left and right sides of the top of the control box 1, a motor 3 is fixedly mounted inside the electrode arm 2 at one end away from the control box 1, a cleaning component 4 is provided on the surface of the electrode arm 2 near the motor 3, and a protective component 5 is provided on the surface of the cleaning component 4;

[0025] Reference Figure 2 - Figure 4The cleaning assembly 4 includes a handle 41 fixedly mounted on the surface of the electrode arm 2, and a telescopic rod 42 is fixedly mounted on the bottom end of the handle 41. The surface of the electrode arm 2 is slidably connected to a sliding ring 43, and a protrusion is fixedly mounted on the bottom end of the telescopic rod 42. The top of the sliding ring 43 is provided with a card slot that is adapted to the protrusion. The telescopic rod 42 can push the sliding ring 43 to slide on the surface of the electrode arm 2. At the same time, the telescopic rod 42 can limit the position of the sliding ring 43. The surface of the middle part of the sliding ring 43 is provided with an annular groove 44, and an annular rod 45 is fixedly mounted inside the annular groove 44. The surface of the annular rod 45 is slidably connected to a slider 46. A cleaning strip 47 is fixedly mounted on the side of the slider 46 close to the center of the sliding ring 43. The slider 46 is slidably connected to the inside of the annular groove 44. The side of the cleaning strip 47 away from the slider 46 is adapted to contact with the motor 3. When the slider 46 is pushed to move, the cleaning strip 47 is driven to clean the surface of the motor 3 to prevent oxides and impurities on the surface of the motor 3 from affecting welding.

[0026] Reference Figure 2 、 Figure 5 and Figure 6 The protection component 5 includes a fixed plate 51 fixedly mounted on the bottom end of the sliding ring 43, and a hollow rotating plate 52 is rotatably connected to the surface of the fixed plate 51 on the side away from the center of the sliding ring 43. A torsion spring 53 is fixedly connected to the end of the hollow rotating plate 52 close to the fixed plate 51. There are six fixed plates 51 and they are distributed circumferentially on the bottom of the sliding ring 43. The end of the torsion spring 53 away from the hollow rotating plate 52 is fixedly mounted on the surface of the fixed plate 51. A sliding plate 54 is slidably connected to the inside of the bottom of the hollow rotating plate 52. A magnetic block 55 is fixedly mounted on the top of the sliding plate 54. An electromagnet 56 is fixedly mounted on the top wall of the inner wall of the hollow rotating plate 52. A fixed plate 51 is fixedly mounted on the side close to the center of the sliding ring 43. The electric cylinder 57 and the control switch 58 are fixedly installed on the surface of the handle 41. The adjacent ends of the magnetic block 55 and the electromagnet 56 are the same magnetic poles. The electromagnet 56 and the electric cylinder 57 are both electrically connected to the control switch 58. The output shaft of the electric cylinder 57 is fixedly connected to the side of the hollow rotating plate 52 close to the fixed plate 51. The operator can press the control switch 58 to make the electromagnet 56 repel the magnetic block 55. At this time, the magnetic block 55 drives the sliding plate 54 away from the hollow rotating plate 52. At the same time, the electric cylinder 57 is driven to push the hollow rotating plate 52 to rotate. At this time, the hollow rotating plate 52 and the sliding plate 54 are unfolded to block the metal parts during the welding process to prevent solder splashes from contacting the operator and causing safety hazards.

[0027] Working principle: Before welding, the operator first slides the sliding ring 43 to a position close to the motor 3, and then extends the telescopic rod 42 to drive the protrusion to be clamped inside the slot. At this time, the sliding ring 43 is limited by the telescopic rod 42. Then the operator pushes the slider 46 to make the slider 46 slide on the surface of the annular rod 45. During the movement of the slider 46, the cleaning bar 47 will be driven to move. At this time, the cleaning bar 47 wipes the surface of the motor 3, so the cleaning bar 47 will wipe the oxides and impurities on the surface of the motor 3. Then the operator pushes the sliding ring 43 away from the motor 3 so that the sliding ring 43 will not interfere with the subsequent welding of the motor 3 to the metal parts.

[0028] Afterwards, the operator manually holds the handle 41, and at this time drives the electrode arm 2 close to the workpiece to be welded through the handle 41. At this time, the operator first presses the control switch 58, so that the electromagnet 56 and the electric cylinder 57 electrically connected to the control switch 58 are energized. When the electromagnet 56 is energized, it will repel the magnetic block 55. At this time, the magnetic block 55 will drive the sliding plate 54 to slide inside the hollow rotating plate 52, and then the sliding plate 54 will slide out of the hollow rotating plate 52. At the same time, the electric cylinder 57 will extend and push the hollow rotating plate 52 after being driven. At this time, the bottom of the hollow rotating plate 52 is pushed by the electric cylinder 57 to rotate, and when the hollow rotating plate 52 rotates, it drives the torsion spring 53 to accumulate elastic force. At this time, the sliding plate 54 extending out of the hollow rotating plate 52 rotates and disengages from the fixed plate 51. At this time, multiple sliding plates 54 block the motor 3, and then the operator controls the motor 3 to approach the workpiece to be welded and weld it. The solder that may be generated and splashed during welding is blocked by the sliding plate 54, thereby ensuring the safety of the welding process.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A spot welding machine solder splash prevention structure, characterized by: The invention comprises a control box (1), wherein electrode arms (2) are fixedly mounted on both left and right sides of the top of the control box (1), a motor (3) is fixedly mounted inside the electrode arm (2) at one end away from the control box (1), a cleaning component (4) is provided on the surface of the electrode arm (2) on the side close to the motor (3), and a protective component (5) is provided on the surface of the cleaning component (4); The cleaning assembly (4) includes a handle (41) fixedly mounted on the surface of the electrode arm (2), a telescopic rod (42) fixedly mounted on the bottom end of the handle (41), a sliding ring (43) slidably connected to the surface of the electrode arm (2), an annular groove (44) is provided on the surface of the middle portion of the sliding ring (43), an annular rod (45) is fixedly mounted inside the annular groove (44), a slider (46) is slidably connected to the surface of the annular rod (45), and a cleaning bar (47) is fixedly mounted on the side of the slider (46) close to the center of the sliding ring (43).

2. The solder splash prevention structure for a spot welding machine according to claim 1, characterized in that: A protrusion is fixedly mounted on the bottom end of the telescopic rod (42), and a slot adapted to engage with the protrusion is provided on the top end of the sliding ring (43).

3. The solder splash prevention structure for a spot welding machine according to claim 1, characterized in that: The slider (46) is slidably connected to the inside of the annular groove (44), and the side of the cleaning strip (47) away from the slider (46) is in adaptive contact with the motor (3).

4. The solder splash prevention structure for a spot welding machine according to claim 1, characterized in that: The protection assembly (5) includes a fixed plate (51) fixedly mounted on the bottom end of the sliding ring (43); a hollow rotating plate (52) is rotatably connected to the surface of the fixed plate (51) away from the center of the sliding ring (43); a torsion spring (53) is fixedly connected to the end of the hollow rotating plate (52) close to the fixed plate (51); a sliding plate (54) is slidably connected to the inside of the bottom of the hollow rotating plate (52); a magnetic block (55) is fixedly mounted on the top of the sliding plate (54); an electromagnet (56) is fixedly mounted on the top wall of the inner wall of the hollow rotating plate (52); an electric cylinder (57) is fixedly mounted on the side of the fixed plate (51) close to the center of the sliding ring (43); and a control switch (58) is fixedly mounted on the surface of the handle (41).

5. The solder splash prevention structure for a spot welding machine according to claim 4, characterized in that: There are six fixed plates (51) distributed circumferentially at the bottom of the sliding ring (43), and one end of the torsion spring (53) away from the hollow rotating plate (52) is fixedly mounted on the surface of the fixed plate (51).

6. The solder splash prevention structure for a spot welding machine according to claim 4, characterized in that: The adjacent ends of the magnetic block (55) and the electromagnet (56) have the same magnetic poles. The electromagnet (56) and the electric cylinder (57) are both electrically connected to the control switch (58). The output shaft of the electric cylinder (57) is fixedly connected to one side of the hollow rotating plate (52) close to the fixed plate (51).

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