Sheet metal part spot welding device

Abstract

The invention discloses a sheet metal part spot welding device and relates to the technical field of sheet metal part machining, the sheet metal part spot welding device comprises a spot welding device body, a clamping mechanism and pushing mechanisms, a fixing frame is arranged on a lower polar plate of the spot welding device body, the clamping mechanism is arranged on the lower polar plate and the fixing frame, and the pushing mechanisms are symmetrically arranged on the two sides of the fixing frame. A sheet metal part is limited and fixed through a movable clamping block and a fixed clamping block of the clamping mechanism, the sheet metal part is welded through a spot welding device body, after welding is completed, a push plate is driven by a stop lever of the movable clamping block to move backwards along a guide rod, force is stored in the push plate through a second spring on the guide rod, and when the stop lever is separated from the push plate, the push plate is pushed to move backwards through a second spring on the guide rod. And under the action of the elastic force of the second spring, the push plate rapidly moves forwards, the welded sheet metal parts are pushed out of the spot welding device body through the inclined push face on the push plate to enter the collecting box, the spot-welded sheet metal parts can be automatically discharged in the whole process, and the machining efficiency of the sheet metal parts is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal processing, and in particular to a sheet metal spot welding device. Background Art

[0002] Sheet metal is a metal product, usually made of thin steel, aluminum or stainless steel, and processed into various shapes and sizes through stamping, bending, welding and other processes to meet different uses and requirements. When spot welding thinner sheet metal parts, since the thinner sheet metal parts are attached to the spot welding device, it is inconvenient for workers to remove them from the spot welding device after spot welding, and the whole process is time-consuming and laborious. Summary of the invention

[0003] The object of the present invention is to provide a sheet metal spot welding device to overcome the above-mentioned defects in the prior art.

[0004] A sheet metal spot welding device, comprising a spot welding device body, a clamping mechanism and a material pushing mechanism, wherein a fixing frame is provided on the lower electrode plate of the spot welding device body;

[0005] The clamping mechanism is arranged on the lower plate and the fixing frame and is used to fix the sheet metal part;

[0006] The pushing mechanism is symmetrically arranged on both sides of the fixing frame and pushes the sheet metal part attached to the lower pole plate upwards under the drive of the clamping mechanism.

[0007] Preferably, the clamping mechanism includes a cylinder, a movable clamp and a fixed clamp, the cylinder body of the cylinder is installed on a fixed frame and the end of its piston rod is connected to the movable clamp, the two sides of the movable clamp are respectively slidably connected to the slide rails on the inner side of the fixed frame, and the fixed clamp is arranged on the front side of the lower pole plate and opposite to the movable clamp.

[0008] Preferably, the pushing mechanism comprises a pushing plate, a guide rod and a driving block, the pushing plate is slidably connected to the guide rod of the rectangular structure on the fixed frame through a sliding block at its top, the pushing plate is slidably connected to the guide rod of the rectangular structure on the fixed frame, the front side of the pushing plate is provided with an inclined pushing surface, the guide rod is sleeved with a spring 1 on the front side of the sliding block, one end of the spring 1 is connected to the baffle on the guide rod, the guide rod is sleeved with a spring 2 on the rear side of the sliding block, one end of the spring 2 is connected to the fixed frame, the sliding block is slidably connected with a sliding plate of the rectangular structure, the sliding plate is sleeved with a spring 3 located between the inner wall of the sliding block and the baffle on the sliding plate, the end of the sliding plate is provided with an extrusion block, the extrusion block is provided with an extrusion inclined surface, the driving block is arranged on the fixed frame and is provided with a driving inclined surface matching the extrusion inclined surface, the moving clamping block is provided with a through hole for the pushing plate to extend, the moving clamping block is provided with a baffle rod corresponding to the extrusion block in the mounting groove on the rear side of the through hole, and the middle of the driving block is provided with a groove for the baffle rod to pass.

[0009] Preferably, the elastic coefficient of the second spring is greater than the elastic coefficient of the first spring.

[0010] Preferably, the fixing frame is a "π"-shaped structure.

[0011] Preferably, both sides of the cylinder body of the cylinder are connected to the fixing frame via a plurality of bolts respectively.

[0012] The beneficial effects achieved by the present invention are:

[0013] The present application uses a movable clamp and a fixed clamp of a clamping mechanism to limit and fix the sheet metal parts, and the spot welding device body welds the sheet metal parts. After welding is completed, the baffle rod of the movable clamp drives the push plate to move backward along the guide rod, and the push plate is force accumulated by the spring 2 on the guide rod. When the baffle rod is separated from the push plate, the push plate moves forward quickly under the action of the spring 2, and the welded sheet metal parts are pushed out of the spot welding device body into the collection box through the inclined push surface on the push plate. The whole process can automatically unload the sheet metal parts after spot welding, greatly improving the processing efficiency of the sheet metal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the whole invention.

[0015] Figure 2 It is a side view of the present invention as a whole.

[0016] Figure 3 It is a schematic structural diagram of the clamping mechanism and the pushing mechanism of the present invention.

[0017] Figure 4 It is a bottom view of the fixed frame, the movable clamping block and the material pushing mechanism of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the fixing frame and the material pushing mechanism of the present invention.

[0019] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0020] Figure 7 It is a top view of the fixing frame and the material pushing mechanism of the present invention.

[0021] Figure 8 for Figure 7 A partial enlarged view of point B in the middle.

[0022] In the figure, 1, the main body of the spot welding device; 2, the fixing frame; 3, the clamping mechanism; 31, the cylinder; 311, the bolt; 32, the movable clamping block; 321, the mounting groove; 33, the slide rail; 34, the fixed clamping block; 4, the pushing mechanism; 41, the pushing plate; 411, the inclined pushing surface; 42, the guide rod; 421, the baffle plate; 422, the spring one; 423, the spring two; 43, the slider; 44, the slide plate; 441, the baffle plate; 442, the spring three; 45, the extrusion block; 451, the extrusion inclined surface; 46, the driving block; 461, the driving inclined surface; 462, the groove; 47, the baffle rod. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention.

[0024] like Figure 1-8 As shown, the present invention provides a sheet metal spot welding device, including a spot welding device body, a clamping mechanism 3 and a pushing mechanism 4, a fixing frame 2 with a "π"-shaped structure is provided on the lower electrode plate of the spot welding device body 1, the clamping mechanism 3 is arranged on the lower electrode plate and the fixing frame 2 and is used to fix the sheet metal, the pushing mechanism 4 is symmetrically arranged on both sides of the fixing frame 2 and pushes the sheet metal attached to the lower electrode plate upward under the drive of the clamping mechanism 3.

[0025] It should be noted that the clamping mechanism 3 includes a cylinder 31, a movable clamp 32 and a fixed clamp 34. The cylinder body of the cylinder 31 is installed on the fixed frame 2 and the end of its piston rod is connected to the movable clamp 32. The two sides of the movable clamp 32 are respectively slidably connected to the slide rails 33 on the inner side of the fixed frame 2. The fixed clamp 34 is arranged on the front side of the lower electrode plate and is opposite to the movable clamp 32.

[0026] In addition, the pushing mechanism 4 includes a pushing plate 41, a guide rod 42 and a driving block 46. The pushing plate 41 is slidably connected to the guide rod 42 of a rectangular structure on the fixed frame 2 through a slider 43 on its top. The front side of the pushing plate 41 is provided with an inclined pushing surface 411. The guide rod 42 is provided with a spring 1 422 on the front side of the slider 43. One end of the spring 1 422 is connected to the baffle 421 on the guide rod 42. The guide rod 42 is provided with a spring 2 423 on the rear side of the slider 43. One end of the spring 2 423 is connected to the fixed frame 2. The elastic coefficient of the spring 2 423 is greater than the elastic coefficient of the spring 1 422. The slider 43 A slide plate 44 with a rectangular structure is slidably connected to the upper part, and a spring 442 is sleeved on the slide plate 44 and is located between the inner wall of the slider 43 and the baffle 441 on the slide plate 44. An extrusion block 45 is provided at the end of the slide plate 44, and an extrusion inclined surface 451 is provided on the extrusion block 45. The driving block 46 is arranged on the fixed frame 2 and is provided with a driving inclined surface 461 that cooperates with the extrusion inclined surface. A through hole is provided on the movable clamping block 32 for the push plate 41 to extend out, and a baffle rod 47 corresponding to the extrusion block 45 is provided in the mounting groove 321 on the rear side of the through hole, and a groove 462 is provided in the middle of the driving block 46 for the baffle rod 47 to pass through.

[0027] In addition, both sides of the cylinder body of the cylinder 31 are connected to the fixing frame 2 via a plurality of bolts 311 , thereby facilitating the disassembly and assembly of the cylinder 31 and the fixing frame 2 .

[0028] Specific implementation and principle:

[0029] The sheet metal to be welded is placed on the lower electrode plate of the spot welding device body 1 and is located between the movable clamp block 32 and the fixed clamp block 34. Then, the piston rod of the cylinder 31 is controlled to extend, driving the movable clamp block 32 to move forward along the slide rail 33 on the fixed frame 2, and the sheet metal between the movable clamp block 32 and the fixed clamp block 34 is clamped and fixed. Then, the sheet metal is spot welded through the spot welding device body 1. When the spot welding of the sheet metal is completed, the piston rod of the cylinder 31 is controlled to retract, so that the movable clamp block 32 is away from the sheet metal. During the movement of the movable clamp block 32, the blocking rod 47 thereon drives the slider 43 and The push plate 41 moves, thereby compressing the spring 2 423 on the guide rod 42. When the extrusion block 45 contacts the driving inclined surface 461 on the driving block 46, the extrusion block 45 is squeezed, thereby moving the slide plate 44 on the slider 43. The spring 3 442 is compressed, and the blocking rod 47 is separated from the extrusion block 45. Under the elastic force of the spring 2 423, the push plate 41 moves forward quickly, and the sheet metal is lifted upward by the inclined push surface 411 on the push plate 41, so that the welded sheet metal enters the collection box under the spot welding device body 1. Finally, the push plate 41 is reset under the elastic force of the spring 1 422 on the guide rod 42.

[0030] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A sheet metal spot welding device, comprising a spot welding device body (1), characterized in that: It also includes a clamping mechanism (3) and a material pushing mechanism (4), and a fixing frame (2) is provided on the lower electrode plate of the spot welding device body (1); The clamping mechanism (3) is arranged on the lower electrode plate and the fixing frame (2) and is used to fix the sheet metal part; The material pushing mechanism (4) is symmetrically arranged on both sides of the fixing frame (2) and pushes the sheet metal part attached to the lower electrode plate upwards under the drive of the clamping mechanism (3).

2. A sheet metal spot welding device according to claim 1, characterized in that: The clamping mechanism (3) comprises a cylinder (31), a movable clamping block (32) and a fixed clamping block (34); the cylinder body of the cylinder (31) is mounted on the fixed frame (2) and the end of the piston rod thereof is connected to the movable clamping block (32); both sides of the movable clamping block (32) are respectively slidably connected to the slide rails (33) on the inner side of the fixed frame (2); and the fixed clamping block (34) is arranged on the front side of the lower electrode plate and directly opposite to the movable clamping block (32).

3. A sheet metal spot welding device according to claim 2, characterized in that: The pushing mechanism (4) comprises a pushing plate (41), a guide rod (42) and a driving block (46); the pushing plate (41) is slidably connected to the guide rod (42) of a rectangular parallelepiped structure on the fixed frame (2) through a slider (43) at the top thereof; an inclined pushing surface (411) is provided on the front side of the pushing plate (41); a spring (422) is sleeved on the front side of the slider (43) of the guide rod (42); one end of the spring (422) is connected to the baffle (421) on the guide rod (42); a spring (423) is sleeved on the rear side of the slider (43) of the guide rod (42); one end of the spring (423) is connected to the fixed frame (2); a slide plate (423) of a rectangular parallelepiped structure is slidably connected to the slider (43); 44), a spring three (442) is sleeved on the slide plate (44) and is located between the inner wall of the slider (43) and the baffle plate (441) on the slide plate (44), an extrusion block (45) is provided at the end of the slide plate (44), and an extrusion inclined surface (451) is provided on the extrusion block (45), the driving block (46) is arranged on the fixed frame (2) and is provided with a driving inclined surface (461) matched with the extrusion inclined surface, the moving clamping block (32) is provided with a through hole for the push plate (41) to extend out, and the moving clamping block (32) is provided with a baffle rod (47) corresponding to the extrusion block (45) in the mounting groove (321) on the rear side of the through hole, and a groove (462) for the baffle rod (47) to pass through is provided in the middle of the driving block (46).

4. A sheet metal spot welding device according to claim 3, characterized in that: The elastic coefficient of the second spring (423) is greater than the elastic coefficient of the first spring (422).

5. A sheet metal spot welding device according to claim 1, characterized in that: The fixing frame (2) is a "π"-shaped structure.

6. A sheet metal spot welding device according to claim 2, characterized in that: Both sides of the cylinder body of the cylinder (31) are connected to the fixing frame (2) via a plurality of bolts (311).

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