Tin wire feeding mechanism for sawtooth spot welding

Abstract

The invention discloses a tin wire feeding mechanism for sawtooth spot welding. The tin wire feeding mechanism comprises a mounting base; the tin inlet guide seat, the first conveying wheel set, the middle guide seat, the second conveying wheel set and the tin outlet guide seat are arranged on the mounting base from top to bottom, and the first conveying wheel set and the second conveying wheel set are meshed and linked through a gear shaft; the discharging frame is positioned on the upper side of the mounting base; wherein the first conveying wheel set comprises a first driving wheel meshed with the upper portion of the gear shaft; the first driven wheel is used for clamping and conveying the tin wire corresponding to the first driving wheel; wherein the first driven wheel is in shaft connection with an indexing turntable rotating along with the first driven wheel, and the indexing turntable is provided with eight notches formed in an array mode; and the photoelectric sensors are mounted on two sides of the indexing turntable through brackets and correspond to the notches. Tin wires are discharged through the tin inlet guide seat, the first conveying wheel set is matched with the second conveying wheel set, the tin wires are continuously output through the tin outlet guide seat, meanwhile, the indexing turntable induces the tin outlet length, discharging is accurately positioned, and the trouble that tin wire feeding is difficult to control in the past is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of sawtooth processing, and in particular relates to a tin wire feeding mechanism for sawtooth spot welding. Background Art

[0002] At present, the tin wire feeding mechanism of saw blade welding saw teeth all uses a simple guide wheel to slowly feed the material, and the intermittent feeding is difficult to control, resulting in the feeding length being long and short. In addition, the tin wire is directly fed, which is easy to produce spatter during welding, resulting in poor welding quality of the saw teeth. There is a lack of corresponding tin breaking mechanism, which exposes the flux and improves the welding quality. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a tin wire feeding mechanism for sawtooth spot welding. Through the tin wire under the tin inlet guide seat, the first conveying wheel group cooperates with the second conveying wheel group to continuously output the tin wire from the tin outlet guide seat. At the same time, the dividing turntable senses the tin outlet length and accurately positions the discharge, avoiding the trouble of difficult control of tin wire feeding in the past.

[0004] In order to solve the above technical problems, the present invention discloses a tin wire feeding mechanism for sawtooth spot welding, which comprises a mounting base; a tin inlet guide seat arranged on the mounting base and from top to bottom, a first conveying wheel group, an intermediate guide seat, a second conveying wheel group, and a tin outlet guide seat, wherein the first conveying wheel group and the second conveying wheel group are meshed and linked through a gear shaft, and the gear shaft is driven to rotate by a stepper motor fixed to the mounting base; and a material discharge rack located on the upper side of the mounting base, on which a tin wire roll is hung; wherein the first conveying wheel group comprises a first driving wheel above the meshing gear shaft; a first driven wheel corresponding to the first driving wheel clamping the conveying tin wire, and the first driven wheel approaches or moves away from the first driving wheel through a screw handwheel; wherein the first driven wheel shaft is connected to a dividing turntable that rotates with it, and the dividing turntable has 8 notches opened in an array; photoelectric sensors are installed on both sides of the dividing turntable through brackets and correspond to the notches, and the notches are isolated and disconnected or connected to open the photoelectric sensors as the dividing turntable rotates, and the photoelectric sensors control the rotation of the stepper motor.

[0005] According to one embodiment of the present invention, the second conveying wheel assembly includes a second driving wheel below the meshing gear shaft; a second driven wheel corresponding to the second driving wheel clamping and conveying the tin wire, and the second driven wheel approaches or moves away from the second driving wheel through a screw handwheel.

[0006] According to one embodiment of the present invention, the second driven wheel ring is provided with a groove for the tin wire to pass through, and the center of the groove has a protruding blade.

[0007] According to one embodiment of the present invention, the blade has a height of 0.5 mm and a width of 0.2 mm.

[0008] According to one embodiment of the present invention, the tin inlet guide seat, the intermediate guide seat, and the tin outlet guide seat are all fixed to the mounting base by bolts, and have guide holes for the tin wire to pass through, and rubber hoses extend from both ends of the guide holes.

[0009] Compared with the prior art, the present invention can achieve the following technical effects: The tin wire is passed through the tin inlet guide seat, and the first conveyor wheel group cooperates with the second conveyor wheel group to continuously output the tin wire from the tin outlet guide seat. At the same time, the dividing turntable senses the length of the tin output and accurately positions the output, avoiding the trouble of difficult to control tin wire feeding in the past.

[0010] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 Schematic diagram of a tin wire feeding mechanism for spot welding of saw blades according to an embodiment of the present invention; Figure 2 2 is a schematic diagram of the installation of the first conveying wheel group and the second conveying wheel group according to an embodiment of the present invention; Figure 3 1. It is a schematic diagram of the installation of the indexing turntable according to an embodiment of the present invention; Figure 4 4 is a side view of the second driven wheel of the embodiment of the present invention. Figure ID

[0012] Install the base 10, the tin inlet guide seat 20, the hose 21, the first conveying wheel group 30, the first driving wheel 31, the first driven wheel 32, the intermediate guide seat 40, the second conveying wheel group 50, the second driving wheel 51, the second driven wheel 52, the groove 53, the blade 54, the tin outlet guide seat 60, the gear shaft 70, the unloading rack 80, the screw handwheel 90, the dividing turntable 100, the notch 110, the bracket 120, and the photoelectric sensor 130. DETAILED DESCRIPTION

[0013] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0014] Please refer to Figures 1 to 3 , Figure 1 Schematic diagram of a tin wire feeding mechanism for spot welding of saw blades according to an embodiment of the present invention; Figure 2 2 is a schematic diagram of the installation of the first conveying wheel group and the second conveying wheel group according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the installation of the indexing turntable of an embodiment of the present invention. As shown in the figure, a tin wire feeding mechanism for spot welding of saw blades includes a mounting base 10; a tin inlet guide seat 20, a first conveying wheel set 30, an intermediate guide seat 40, a second conveying wheel set 50, and a tin outlet guide seat 60 arranged on the mounting base 10 from top to bottom, wherein the first conveying wheel set 30 and the second conveying wheel set 50 are meshed and linked through a gear shaft 70, and the gear shaft 70 is driven to rotate by a stepper motor fixed to the mounting base 10; and a material discharging rack 80 located on the upper side of the mounting base 10, and the material discharging rack 80 is hung with a tin wire roll; wherein the first conveying wheel set 30 includes a meshing gear shaft 70 above the upper side. A first driving wheel 31; a first driven wheel 32 corresponding to the first driving wheel 31 clamping and conveying tin wire, the first driven wheel 32 approaches or moves away from the first driving wheel 31 through a screw handwheel 90; wherein the first driven wheel 32 is axially connected to a dividing turntable 100 that rotates therewith, and the dividing turntable 100 has 8 slots 110 opened in an array; photoelectric sensors 130 are installed on both sides of the dividing turntable 100 and corresponding to the slots 110 through brackets 120, and the slots 110 rotate with the dividing turntable 100 to isolate and disconnect or connect to open the photoelectric sensors 130, and the photoelectric sensors 130 control the rotation of the stepping motor.

[0015] In one embodiment of the present invention, the unloading rack 80 suspends a tin wire roll above, and sequentially passes the tin wire through the tin inlet guide seat 20, the first conveying wheel set 30, the middle guide seat 40, the second conveying wheel set 50, and the tin outlet guide seat 60 to supply the electric heating coil for welding. Among them, the first conveying wheel set 20 and the second conveying wheel set 50 are both linked by the gear shaft 70 meshing in the middle, and the two can cooperate to convey the tin wire downward. The gear shaft 70 is driven by a stepping motor, which is highly practical and widely used.

[0016] Specifically, the first conveying wheel set 30 is provided with a first driving wheel 31 and a first driven wheel 32 on the left and right sides, wherein the second driven wheel 32 is fine-tuned with the first driving wheel 31 by a screw hand wheel 90, so as to facilitate the adjustment of the tightness of the tin wire and facilitate the conveying. Similarly, the second conveying wheel set 50 is also provided with a second driving wheel 51 and a second driven wheel 52 on the left and right sides, and the screw hand wheel 90 is used to fine-tune the distance between the second driven wheel 32 and the first driving wheel 31.

[0017] In addition, a dividing turntable 100 that rotates with the first driven wheel 32 is axially connected to the outer side of the first driven wheel 32. The dividing turntable has 8 through slots 110, and photoelectric sensors 130 are installed on both sides of the dividing turntable through brackets 120. The intermittent opening and closing of the photoelectric sensors 130 are achieved by the spaced slots 11, and then the start and stop of the stepper motor are controlled, so as to realize the working time interval during spot welding, improve orderliness, simple structure, and easy operation.

[0018] Please continue to refer to Figure 4 , Figure 4It is a side view of the second driven wheel 52 of the embodiment of the present invention. The second driven wheel 52 of the present invention is surrounded by a groove 53 for the tin wire to pass through, and a protruding blade 54 is provided in the center of the groove 53. When the tin wire is conveyed, the groove 53 guides, and the blade 54 breaks the outer skin of the tin wire to expose the flux, which greatly improves the welding environment, avoids the spatter of the welding wire, and makes the sawtooth welding more stable and higher in strength.

[0019] In one embodiment, the blade has a height of 0.5 mm and a width of 0.2 mm, and can be machined by a CNC lathe.

[0020] The tin inlet guide seat 20, the middle guide seat 40, and the tin outlet guide seat 60 are all fixed to the mounting base 10 by bolts, and have guide holes for the tin wire to pass through, and rubber hoses 21 are extended at both ends of the guide holes to improve the guiding performance. At the same time, the material is discharged by sliding to remove dust particles on the surface, thereby preventing waste materials attached to the surface of the tin wire from affecting the welding environment, thereby improving the stability of welding.

[0021] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A tin wire feeding mechanism for sawtooth spot welding, characterized in that: include: Install the base; A tin inlet guide seat, a first conveying wheel set, an intermediate guide seat, a second conveying wheel set, and a tin outlet guide seat are arranged on the mounting base and from top to bottom, wherein the first conveying wheel set and the second conveying wheel set are meshed and linked via a gear shaft, and the gear shaft is driven to rotate by a stepping motor fixed to the mounting base; and A material unloading rack is located on the upper side of the mounting base, and a tin wire roll is hung on the material unloading rack; The first conveying wheel assembly includes a first driving wheel meshing with the gear shaft; a first driven wheel corresponding to the first driving wheel clamping and conveying the tin wire, and the first driven wheel approaches or moves away from the first driving wheel through a screw hand wheel; The first driven wheel shaft is connected to a dividing turntable that rotates with it, and the dividing turntable has 8 slots arranged in an array; photoelectric sensors are mounted on both sides of the dividing turntable through brackets and correspond to the slots, and the slots are isolated and disconnected as the dividing turntable rotates, or the photoelectric sensors are opened by docking, and the photoelectric sensors control the rotation of the stepping motor.

2. The tin wire feeding mechanism for sawtooth spot welding according to claim 1, characterized in that: The second conveying wheel assembly includes a second driving wheel meshing with the lower portion of the gear shaft; a second driven wheel corresponding to the second driving wheel clamping and conveying the tin wire, and the second driven wheel approaches or moves away from the second driving wheel through a screw handwheel.

3. The tin wire feeding mechanism for sawtooth spot welding according to claim 2, characterized in that: The second driven wheel ring is provided with a groove through which the tin wire passes, and the center of the groove has a raised blade.

4. The tin wire feeding mechanism for sawtooth spot welding according to claim 3, characterized in that: The blade has a height of 0.5 mm and a width of 0.2 mm.

5. The tin wire feeding mechanism for sawtooth spot welding according to claim 1, characterized in that: The tin inlet guide seat, the middle guide seat, and the tin outlet guide seat are all fixed to the mounting base by bolts, and are provided with guide holes for the tin wire to pass through, and rubber hoses extend from both ends of the guide holes.

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