Automatic overturning and welding tool for coil rack and enameled wire

Abstract

The utility model provides a coil rack and enameled wire automatic turning welding tool, which comprises a mounting seat, a cylinder, a rack, a first gear and a coil fixing shaft, the mounting seat comprises a cylinder fixing plate and a gear fixing plate which are vertically arranged, the cylinder is fixed on the cylinder fixing plate along the horizontal direction, and a piston rod of the cylinder extends between the two gear fixing plates; the rack is coaxially fixed with a piston rod of the cylinder; the first gear is rotationally mounted on the two gear fixing plates through a first rotating shaft and is meshed with the rack; one end of the coil fixing shaft and one end of the first rotating shaft are coaxially fixed, the coil fixing shaft rotates along with the first rotating shaft, the coil rack is fixedly arranged on the coil fixing shaft in a sleeving mode from the other end of the coil fixing shaft, and therefore overturning of the coil rack is achieved. According to the tool, the enameled wire and the two wiring terminals arranged on the coil frame along the arc surface can be overturned and welded, manual operation is not needed, the labor cost is saved, overturning and positioning are accurate, and the overturning and welding efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of automated coil production technology, and in particular to an automatic flipping and welding fixture for coil frames and enameled wires. Background Technology

[0002] Solenoid valves are actuators in automotive electronic control systems. Based on their function, they can be categorized into shift solenoid valves, lock-up solenoid needle valves, and pressure regulating solenoid needle valves. Based on their operating method, they can be categorized into on / off solenoid valves and pulse solenoid valves. A solenoid valve includes components such as a housing, sealing ring, armature, coil, stationary iron core, moving spring, washer, and intake connector. The coil is one of the core components of the solenoid valve. The coil includes a coil frame and enameled wire wound on the coil frame. Two terminals are fixed on the coil frame. During coil manufacturing, the two ends of the enameled wire must be soldered to the two terminals on the coil frame.

[0003] Currently, the welding of enameled wire and terminals can be mechanized and automated through automatic welding. Before automatic welding, the coil frame must be fixed so that the terminals of the coil frame face the automatic welding machine. However, since the two terminals (two welding points) are located on the arc surface at one end of the coil frame, after automatically welding one welding point, the coil frame needs to be manually flipped so that the other welding point faces the automatic welding machine in order to complete the automatic welding of the two opposite welding points. The manual flipping method increases labor costs and affects welding efficiency. Summary of the Invention

[0004] This utility model provides an automatic flip welding fixture for coil frame and enameled wire. The fixture can flip and weld the enameled wire to two terminals set along the arc surface of the coil frame without manual operation, saving labor costs. It also has accurate flip positioning and high flip welding efficiency.

[0005] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0006] An automatic flipping and welding fixture for a coil frame and enameled wire is disclosed. The enameled wire is wound on the coil frame, and two terminals are fixed along an arc surface at one end of the coil frame. The automatic flipping and welding fixture includes at least an automatic welding mechanism for automatically welding the enameled wire and the terminals. The automatic flipping and welding fixture further includes:

[0007] The mounting base includes an upright cylinder fixing plate and a gear fixing plate. Two gear fixing plates are arranged in parallel, and the two gear fixing plates are respectively fixed to both sides of the cylinder fixing plate.

[0008] The cylinder is fixed horizontally to the cylinder mounting plate, and the piston rod of the cylinder extends between the two gear mounting plates.

[0009] A rack is arranged horizontally and fixed coaxially with the piston rod of the cylinder. The rack moves together with the piston rod of the cylinder.

[0010] The first gear is rotatably mounted on two gear fixing plates via a first rotating shaft and meshes with a rack. The rack extends and retracts, causing the first gear and the first rotating shaft to rotate.

[0011] One end of the coil fixing shaft is coaxially fixed with one end of the first rotating shaft. The coil fixing shaft rotates with the first rotating shaft, and the coil frame is fixedly sleeved on the coil fixing shaft from the other end, thereby realizing the flipping of the coil frame.

[0012] The first gear is provided with a second gear that meshes with it, and the two form a gear pair. The diameter of the first gear is larger than that of the second gear. The second gear is rotatably mounted on two gear fixing plates via a second rotating shaft. In the gear pair, only the second gear meshes with the rack. The rack moves in and out of the rack, which drives the second gear to rotate. The second gear drives the first gear to rotate.

[0013] The first gear is fixed to the first rotating shaft by the first key pin, and the two ends of the first rotating shaft are rotatably connected to the two gear fixing plates by the first bearing; the second gear is fixed to the second rotating shaft by the second key pin, and the two ends of the second rotating shaft are rotatably connected to the two gear fixing plates by the second bearing.

[0014] The two ends of the second rotating shaft are respectively connected to a fixing block for limiting and a second retaining ring on the outside of the second bearing; the end of the first rotating shaft away from the coil fixing shaft is connected to a first retaining ring on the outside of the first bearing for limiting.

[0015] Multiple first gears are distributed and arranged, and the number of coil fixing shafts is the same as the number of first gears, so that multiple coil frames and enameled wires can be automatically flipped and welded simultaneously.

[0016] Two welding operation platforms are provided on one end of the coil fixing shaft near the first rotating shaft. The relative positions of the two welding operation platforms match the relative positions of the two terminals on the coil frame, so that when the coil frame is fixedly sleeved on the coil fixing shaft, the two terminals are exactly located at the two welding operation platforms.

[0017] A limiting step is provided on one end of the coil fixing shaft away from the first rotating shaft. The coil frame is sleeved on the limiting step and locked to the limiting step by an upper limiting sleeve sleeved on the limiting step.

[0018] The limiting sleeve and the limiting step are connected by an interference fit.

[0019] Two terminals are positioned opposite each other on the arc surface at one end of the coil frame, with a central angle of 180° between the two terminals. The extension and retraction of the rack causes the coil fixing shaft to rotate 180°.

[0020] A vertically mounted encapsulation side plate is connected between the two gear fixing plates, and the encapsulation side plate is parallel to the cylinder fixing plate. An encapsulation top plate is connected to the upper part of the cylinder fixing plate, gear fixing plate and encapsulation side plate.

[0021] Compared with the prior art, the automatic flip welding fixture for coil frame and enameled wire provided by this utility model has the following advantages: 1. The automatic flip welding fixture for coil frame and enameled wire provided by this utility model can flip and weld the enameled wire and the two terminals set along the arc surface on the coil frame without manual operation, saving labor costs, and the flip welding efficiency is high.

[0022] 2. In this utility model, the rack is moved by the cylinder, which in turn drives the gear pair (the first gear and the second gear meshing with the rack) to rotate. Through the arrangement of the rack and gear pair, two-stage deceleration is achieved when the coil fixing shaft is flipped. The coil fixing shaft is accurately positioned during flipping, and the coil frame can be automatically flipped. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the coil frame structure in this utility model;

[0024] Figure 2 Schematic diagram of the structure of the automatic flipping and welding fixture for coil frame and enameled wire provided by this utility model Figure 1 ;

[0025] Figure 3 Schematic diagram of the structure of the automatic flipping and welding fixture for coil frame and enameled wire provided by this utility model Figure 2 ;

[0026] Figure 4 A schematic diagram of the internal structure of the automatic flipping and welding fixture for coil frame and enameled wire provided by this utility model;

[0027] Figure 5 A front view of the internal structure of the automatic flipping and welding fixture for coil frames and enameled wires provided by this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the coil fixing shaft in this utility model;

[0029] In the diagram: 1-coil frame, 2-terminal block, 31-base plate, 32-cylinder fixing plate, 33-gear fixing plate, 34-encapsulation side plate, 35-encapsulation top plate, 4-cylinder, 5-rack, 61-first gear, 62-first rotating shaft, 63-first bearing, 64-first snap ring, 71-second gear, 72-second rotating shaft, 73-second bearing, 74-second snap ring, 75-fixing block, 8-coil fixing shaft, 81-welding operation platform, 82-limiting step, 9-limiting sleeve. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings.

[0031] In this embodiment, the coil to be welded includes a coil frame 1 and enameled wire (not shown in the figure) wound on the coil frame. Two terminals 2 are fixed along the arc surface at one end of the coil frame. The structure of the coil frame is as follows: Figure 1 As shown in the figure. The automatic flipping welding fixture provided in this embodiment can weld two welding points between the enameled wire and the coil frame terminal. After welding one welding point, it can automatically flip the coil frame to continue welding the other welding point. In this embodiment, the two terminals are arranged opposite each other on the arc surface at one end of the coil frame, that is, the central angle between the two terminals is 180°. At this time, the automatic flipping welding fixture can realize the 180° flipping of the coil frame. In actual settings, the flipping angle of the coil frame can be adjusted according to the central angle of the two terminals on the coil frame.

[0032] The structure of the automatic flipping and welding fixture for coil frames and enameled wires provided in this embodiment is as follows: Figure 2-5 As shown, it includes a mounting base, a cylinder 4, a rack 5, a first gear 61, a second gear 71, a coil fixing shaft 8, and an automatic welding mechanism (not shown in the figure) for automatically welding enameled wires and terminals.

[0033] The mounting base includes a base plate 31, a cylinder fixing plate 32, a gear fixing plate 33, a sealing side plate 34, and a sealing top plate 35. Two gear fixing plates are arranged in parallel, and both the cylinder fixing plate and the gear fixing plate are vertically fixed to the base plate, with the two gear fixing plates fixed to opposite sides of the cylinder fixing plate. The sealing side plate is vertically connected between the two gear fixing plates and parallel to the cylinder fixing plate. The sealing top plate is fixed to the upper part of the cylinder fixing plate, the gear fixing plate, and the sealing side plate. The base plate, cylinder fixing plate, gear fixing plate, sealing side plate, and sealing top plate together form a closed mounting space, protecting components such as the rack, the first gear, and the second gear.

[0034] The cylinder is fixed horizontally to a cylinder mounting plate, and the cylinder piston rod extends between two gear mounting plates. Specifically, the cylinder mounting plate has mounting holes, through which the cylinder piston rod extends between the two gear mounting plates, and then the cylinder is fixedly connected to the cylinder mounting plate. A rack is horizontally positioned and coaxially fixed to the cylinder piston rod. The rack moves in conjunction with the cylinder piston rod, as shown in the diagram. Figure 5 .

[0035] The first gear is rotatably mounted on two gear fixing plates via a first rotating shaft 62, and the second gear is rotatably mounted on two gear fixing plates via a second rotating shaft 72. Specifically, the first gear is fixed to the first rotating shaft via a first key pin, and both ends of the first rotating shaft are rotatably connected to the two gear fixing plates via first bearings 63. The second gear is fixed to the second rotating shaft via a second key pin, and both ends of the second rotating shaft are rotatably connected to the two gear fixing plates via second bearings 73. Further, the two ends of the second rotating shaft located outside the second bearings are respectively connected to a limiting fixing block 75 and a second retaining ring 74; the end of the first rotating shaft away from the coil fixing shaft is located outside the first bearing and connected to a limiting first retaining ring 64. The first gear and the second gear mesh to form a gear pair, and the diameter of the first gear is larger than that of the second gear. In this embodiment, the second gear in the gear pair meshes with a rack, see... Figure 5 The rack's extension and retraction movement drives the second gear to rotate, which in turn drives the first gear to rotate. The smaller diameter of the second gear allows for speed reduction adjustment of the first gear's rotation. In practice, the second gear can be omitted, in which case the first gear directly meshes with the rack, and the rack's extension and retraction movement drives both the first gear and the first rotating shaft to rotate. In this embodiment, four first gears and four corresponding second gears are provided.

[0036] One end of the coil fixing shaft is coaxially fixed with one end of the first rotating shaft. The coil fixing shaft rotates with the first rotating shaft, and the coil frame is fixedly sleeved on the coil fixing shaft from the other end, thereby realizing the flipping of the coil frame. In this embodiment, four coil fixing shafts are provided, which are respectively mounted on the first rotating shafts of four first gears, so as to perform automatic flipping and welding of multiple coil frames and enameled wires simultaneously.

[0037] In this embodiment, two welding operation platforms 81 are provided on one end of the coil fixing shaft near the first rotating shaft, such as... Figure 6 As shown, the relative positions of the two welding operation platforms are matched with the relative positions of the two terminals on the coil frame, so that when the coil frame is fixedly sleeved on the coil fixing shaft, the two terminals are exactly located at the two welding operation platforms. Figure 2During welding, the welding operation platform is typically positioned upwards and kept horizontal to facilitate the automatic welding mechanism's approach and welding of the enameled wire and terminals. After one welding point is completed, the coil fixing shaft flips, causing another welding operation platform to face upwards and remain horizontal for welding another welding point. In this embodiment, the two terminals are positioned opposite each other on the arc surface at one end of the coil frame, with a central angle of 180°. Therefore, the two welding operation platforms are also positioned opposite each other on the coil fixing shaft. By controlling the travel of the rack's extension and retraction, the coil fixing shaft is rotated 180°, thereby performing flip welding of the two welding points. In this embodiment, a limit step 82 is provided on the end of the coil fixing shaft away from the first rotating shaft, see [link to relevant documentation]. Figure 6 The coil frame is fitted onto the limiting step and locked onto the limiting step by the upper limiting sleeve 9 fitted onto the limiting step. Specifically, the limiting sleeve and the limiting step are connected by an interference fit.

Claims

1. An automatic flipping welding fixture for a coil frame and enameled wire, wherein the enameled wire is wound on the coil frame, and two terminals are fixed along an arc surface at one end of the coil frame, the automatic flipping welding fixture comprising at least an automatic welding mechanism for automatically welding the enameled wire and the terminals, characterized in that: The automatic flipping welding fixture also includes: The mounting base includes an upright cylinder fixing plate and a gear fixing plate. Two gear fixing plates are arranged in parallel, and the two gear fixing plates are respectively fixed to both sides of the cylinder fixing plate. The cylinder is fixed horizontally to the cylinder mounting plate, and the piston rod of the cylinder extends between the two gear mounting plates. A rack is arranged horizontally and fixed coaxially with the piston rod of the cylinder. The rack moves together with the piston rod of the cylinder. The first gear is rotatably mounted on two gear fixing plates via a first rotating shaft and meshes with a rack. The rack extends and retracts, causing the first gear and the first rotating shaft to rotate. One end of the coil fixing shaft is coaxially fixed with one end of the first rotating shaft. The coil fixing shaft rotates with the first rotating shaft, and the coil frame is fixedly sleeved on the coil fixing shaft from the other end, thereby realizing the flipping of the coil frame.

2. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: The first gear is provided with a second gear that meshes with it, and the two form a gear pair. The diameter of the first gear is larger than that of the second gear. The second gear is rotatably mounted on two gear fixing plates via a second rotating shaft. In the gear pair, only the second gear meshes with the rack. The rack moves in and out of the rack, which drives the second gear to rotate. The second gear drives the first gear to rotate.

3. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 2, characterized in that: The first gear is fixed to the first rotating shaft by a first key pin, and the two ends of the first rotating shaft are rotatably connected to the two gear fixing plates by a first bearing; The second gear is fixed to the second rotating shaft by the second key pin, and the two ends of the second rotating shaft are rotatably connected to the two gear fixing plates by the second bearing.

4. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 3, characterized in that: The two ends of the second rotating shaft are respectively connected to a fixing block for limiting and a second retaining ring on the outside of the second bearing; the end of the first rotating shaft away from the coil fixing shaft is connected to a first retaining ring on the outside of the first bearing for limiting.

5. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: Multiple first gears are distributed and arranged, and the number of coil fixing shafts is the same as the number of first gears, so that multiple coil frames and enameled wires can be automatically flipped and welded simultaneously.

6. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: Two welding operation platforms are provided on one end of the coil fixing shaft near the first rotating shaft. The relative positions of the two welding operation platforms match the relative positions of the two terminals on the coil frame, so that when the coil frame is fixedly sleeved on the coil fixing shaft, the two terminals are exactly located at the two welding operation platforms.

7. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: A limiting step is provided on one end of the coil fixing shaft away from the first rotating shaft. The coil frame is sleeved on the limiting step and locked to the limiting step by an upper limiting sleeve sleeved on the limiting step.

8. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 7, characterized in that: The limiting sleeve and the limiting step are connected by an interference fit.

9. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: Two terminals are positioned opposite each other on the arc surface at one end of the coil frame, with a central angle of 180° between the two terminals. The extension and retraction of the rack causes the coil fixing shaft to rotate 180°.

10. The automatic flipping and welding fixture for coil frames and enameled wires according to claim 1, characterized in that: A vertically mounted encapsulation side plate is connected between the two gear fixing plates, and the encapsulation side plate is parallel to the cylinder fixing plate. An encapsulation top plate is connected to the upper part of the cylinder fixing plate, gear fixing plate and encapsulation side plate.

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