CN107775143B

CN107775143B - Welding process for transmission shaft and shaft sleeve of washing machine

Info

Publication number: CN107775143B
Application number: CN201610742107.2A
Authority: CN
Inventors: 倪珺
Original assignee: Anhui Julong Transmission Technology Co Ltd
Current assignee: NINGGUO JULONG REDUCER Co.,Ltd.
Priority date: 2016-08-26
Filing date: 2016-08-26
Publication date: 2021-11-16
Anticipated expiration: 2036-08-26
Also published as: CN107775143A

Abstract

A welding technology for the drive shaft and axle sleeve of washer features that the gear box of washer has a mounting frame on which there are shaft and axle sleeve, which are welded by energy-accumulating welding equipment.

Description

Welding process for transmission shaft and shaft sleeve of washing machine

Technical Field

The invention belongs to the field of washing machines, and particularly relates to the field of manufacturing processes of a shaft and a shaft sleeve of a washing machine.

Background

In the prior art, CN 200820008626.7 provides a full-automatic multi-impeller washing machine, which mainly comprises an outer barrel, an inner barrel, an impeller, a decelerating clutch and a transmission mechanism, wherein the outer barrel is fixedly connected with a decelerating clutch shaft bearing, the inner barrel is fixedly connected with a decelerating clutch dewatering shaft, the impellers are in inverted cone shapes, the transmission mechanism comprises a driving wheel, a guide wheel and a driven wheel, an output shaft of the decelerating clutch is connected with the driving wheel of the transmission mechanism, and the driving wheel transmits power to the impeller through the guide wheel and the driven wheel, and the full-automatic multi-impeller washing machine is characterized in that: the transmission mechanism is sealed in a transmission box which is positioned below the inner barrel and above the speed reduction clutch, and the transmission between a guide wheel and a driven wheel of the transmission mechanism is belt transmission. Further, CN201010559028.0 provides a transmission case of a multi-pulsator washing machine, a washing machine and a washing method thereof, which relate to the technical field of multi-pulsator washing machines, and particularly to a transmission case of a multi-pulsator washing machine, wherein the transmission case mainly comprises an inner shell, an outer shell, a drain pipe, an input end and an output end, the drain pipe is installed on the inner shell and the outer shell, the washing machine comprises a transmission case, an inner barrel, an outer barrel, a pulsator, a decelerating clutch and a motor, the transmission case is connected with the inner barrel, the pulsator is connected with the output end of the transmission case, in the washing method of the washing machine, the output shaft of the decelerating clutch drives an internal transmission device through the input end of the transmission case, and finally the output end drives the pulsator to realize washing; during dewatering, the output shaft of the speed reducing clutch is connected with the dewatering shaft into a whole to drive the transmission case and the inner barrel to form a whole to rotate together, and high-speed centrifugal dewatering is realized. How to install the input shaft, the output shaft sleeve and the transition shaft sleeve on the thin-wall workpiece is a difficult problem. The invention is provided in view of the above.

Disclosure of Invention

The invention aims to provide a welding process of a transmission shaft and a shaft sleeve of a washing machine.

The present invention is realized in the following manner.

A welding technology for the drive axle and axle sleeve of washer features that the drive axle and axle sleeve are installed to a mounting frame, and the axle and axle sleeve are welded together by the energy-accumulating quick discharge to locally melt the workpiece.

Further, the mounting rack is sleeved on the fixing frame; an inner weld joint is provided on the mount at a position relative to each of the shaft and the sleeve.

In the external space range of the fixing frame, a guide rail is arranged corresponding to the position of each shaft and the shaft sleeve, a guide rod is arranged on the guide rail, one end of the guide rod is connected with a cylinder fixed together with the guide rail, and the guide rod can move along the guide rail.

Preferably, the guide rod is provided with an external welding head towards one end of the fixing frame.

Wherein, interior welded joint connects respectively in the both ends of energy storage ware with outer welding, through the on-off control of switch.

The shaft and the sleeve are placed in advance in the holes of the outer or inner weld joint and are pre-stamped with protruding points on the end faces to be welded.

During welding, the guide rail and the guide rod with the adjusted angle and stroke are reset to an initial state, the mounting frame is placed on the fixing frame to be attached, and meanwhile, the positions of the fixing frame, the shaft and the shaft sleeve are adjusted;

then, the shafts punched with the salient points are movably arranged on the respective outer welding heads or the respective inner welding heads, and the welding surfaces face the mounting frame;

starting a control system of the equipment, sequentially inflating the air cylinder, pressing down the guide rod, driving the outer welding head, the shaft and the shaft sleeve to move towards the fixing frame along the guide rail by the guide rod, and pressing the outer welding head, the shaft and the shaft sleeve on the workpiece mounting frame, wherein the energy accumulator discharges electricity to the outer welding head and the inner welding head; an ultra-large current is generated between the outer welding head and the inner welding head, so that the salient points at the joint of the workpiece and the mounting frame are quickly discharged, a large amount of heat is locally generated, and the joint of the salient points of the workpiece is melted and adhered together;

when a workpiece is welded, the control system releases the gas of the cylinder, the guide rod moves outwards to be separated from the welded workpiece, and then the next shaft and shaft sleeve are welded until all the shafts and the shaft sleeves are welded.

In one embodiment of the invention, the fixing frame is hemispherical, and the central lines of the guide rods are opposite to the center of the fixing frame.

According to the invention, the workpiece group is welded by the energy storage welding equipment, the welding effect is firm, the position and angle control is accurate, the deformation is small, and the technical requirements of the multi-impeller gear box are met.

Drawings

FIG. 1 is a schematic view of a gearbox to spindle welding tool of a welding process of a transmission shaft and a spindle sleeve of a washing machine according to the present invention;

FIG. 2 is a schematic cross-sectional view of a gear box workpiece of a welding process for a drive shaft and a shaft sleeve of a washing machine according to the present invention;

FIG. 3 is a perspective view of a gear case workpiece of the welding process for the drive shaft and shaft sleeve of the washing machine of the present invention;

FIG. 4 is a flowchart of a gear case workpiece welding process of a washing machine drive shaft and shaft sleeve of the present invention;

fig. 5 is a schematic structural diagram of a multiple pulsator washing machine according to the background of the present invention.

For better understanding of the present invention, the parts of the welding process of the transmission shaft and the shaft sleeve of the washing machine of the present invention are numbered as follows, wherein the cylinder 1, the guide rail 2, the guide rod 3, the outer welding head 4, the central shaft 5, the hemispherical steel pan 6, the transition shaft 7, the output shaft 8, the inner welding head 9 and the hemispherical fixing frame 10.

Detailed Description

As described in the background section, figures or letters omitted in this application may be found in earlier applications of this application.

Examples

The main body of the multi-impeller gear box of the washing machine is a hemispherical steel pan 6, a central shaft 5 is positioned at the outer side of the bottom of the hemispherical steel pan 6, a central gear is connected with the central shaft and is a power source, output shafts 8 are uniformly distributed at different positions of the hemispherical steel pan 6 and are connected with output gears, power is transmitted between the central gear and the output gears through transition gears arranged on a transition shaft, and one force and speed of a driving shaft are decomposed into a plurality of different torques and speeds output by different shafts. The central shaft, the transition shaft, the output shaft and the like are fixedly arranged on the hemispherical steel pot.

Wherein, the transition shaft 7 and the output shaft 8 are at least two and are distributed at different positions of the hemispherical steel pan 6, but all the shafts are the shafts passing through the center of the hemispherical steel pan 6, and the shaft sleeves of the shafts or the mounting shafts are welded on the hemispherical steel pan 6 through a tool.

The invention is manufactured by the process technology that the position of the various shafts or shaft sleeves and the hemispherical steel pot 6 is controlled by a guide rail, the cylinder pressurizes, the stored energy discharges rapidly, and the workpiece is locally melted and bonded.

The tool main body is a hemisphere fixing frame 10 and is fixed on a workbench, and a hemisphere steel pot 6 is sleeved on the hemisphere fixing frame 10 and is accurately positioned through a pin shaft. An inner welding joint 9 is embedded in each position of the hemispherical steel pot 6 where a fixing shaft is needed, the inner welding joint is made of copper and easy to discharge, the outer welding joint is externally connected with an energy accumulator, and the on-off of the inner welding joint is controlled by a switch.

In the outer space of the hemisphere fixing frame 10, a guide rail 2 is fixedly installed with respect to each shaft, and the number of the guide rails 2 is the same as the number of the shafts to be welded. The guide rail 2 is also fixedly provided with a cylinder 1, the guide rod 3 is slidably arranged on the guide rail 2, and one end of the guide rod is connected with the cylinder 1. And an external welding head 4 is arranged at the other end of the guide rod 3 and faces to one end of the center of the hemispherical fixing frame 10, the external welding head 4 is also made of copper materials and is connected to the other end of the energy accumulator, and the on-off state of the energy accumulator is controlled by a switch. The cylinder 1 is inflated and deflated to drive the guide rod 3 to move along the axis of the guide rail 2. The motion tracks of all the guide rods 3 pass through the sphere center of the hemispherical fixing frame 10. The external welding head 4 is also made of copper material and is connected with the other end of the energy accumulator.

And a control system of the device controls the air charging and discharging of each air cylinder and controls the electric energy release of each butt welding joint.

During the working process of the equipment, the guide rail 2 and the guide rod 3 with the adjusted angles and strokes are reset to the initial state, namely, leave the hemisphere fixing frame 10. The main workpiece hemisphere steel pot 6 is placed on the hemisphere fixing frame 10, the spherical surface is attached, and meanwhile, the position of the hemisphere steel pot 6 is well adjusted through a fixing pin and the like, so that the shaft sleeve of the central shaft 5 and the shaft sleeve of the output shaft 8 are fixed.

Then, the center shaft 5 with the protruding points, the transition shaft 7, and the sleeve of the output shaft 8 are movably attached to the outer joint 4 or the inner joint 9, respectively. The welding surface faces the hemispherical steel pan 6.

After all the parts are prepared, a control system of the equipment is started, the cylinder 1 is sequentially inflated, the guide rod 3 is pressed down, the guide rod 3 drives the outer welding joint 4 and the workpiece to move to the hemisphere fixing frame 10 along the guide rail 2 and is pressed on the workpiece hemisphere steel pot 6, and at the moment, the energy accumulator discharges electricity to the outer welding joint and the inner welding joint. The extra-large current is generated between the outer welding joint 4 and the inner welding joint 9, so that the salient points at the joint of the workpiece and the hemispherical steel pot 6 are quickly discharged, a large amount of heat is locally generated, and the joint of the salient points of the workpiece is melted and adhered together.

When a workpiece is welded, the control system releases the gas of the cylinder 1, the guide rod 3 moves outwards to separate from the welded workpiece, and then the next workpiece is welded until all workpieces are completely welded.

In the present invention, the shaft and the sleeve are collectively referred to as a workpiece.

It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a welding process of washing machine transmission shaft and axle sleeve, washing machine's transmission case main part is a hemisphere steel pot, includes a mounting bracket, and it has axle and axle sleeve, its characterized in that to distribute on it: the hemispherical steel pot is sleeved on a hemispherical fixing frame and is accurately positioned through a pin shaft, an inner welding joint is embedded in each position needing a fixing shaft, a guide rail is arranged in the external space range of the fixing frame relative to the position of each shaft and shaft sleeve, a guide rod is arranged on each guide rail, one end of each guide rod is connected with a cylinder fixed together with the guide rail, the guide rod moves along the guide rail, and an outer welding joint is arranged at one end, facing the fixing frame, of each guide rod; the shaft, the shaft sleeve and the mounting frame are rapidly discharged through energy storage, and the local melting and adhering process of the workpiece is welded together, wherein the local melting and adhering process of the workpiece refers to the following steps: the shaft and the shaft sleeve are placed in a hole of the inner welding head in advance, salient points are stamped on the end faces to be welded in advance on the shaft and the shaft sleeve, and the salient points are attached to the mounting rack and then are melted and adhered to the mounting rack through energy storage rapid discharge.

2. The welding process of the transmission shaft and the shaft sleeve of the washing machine as claimed in claim 1, wherein the inner welding head and the outer welding head are respectively connected to two ends of the energy accumulator, and the on-off state is controlled by a switch.

3. The welding process of the transmission shaft and the shaft sleeve of the washing machine as claimed in claim 2, wherein: the shaft and sleeve may also be pre-positioned in the bore of the outer weld joint.

4. The welding process of the transmission shaft and the shaft sleeve of the washing machine as claimed in claim 3, wherein: during welding, the guide rail and the guide rod with the adjusted angle and stroke are reset to an initial state, the mounting frame is placed on the fixing frame to be attached, and meanwhile, the positions of the fixing frame, the shaft and the shaft sleeve are adjusted; then, the shaft and the shaft sleeve with the salient points are movably arranged on the respective outer welding head or inner welding head, and the welding surface faces the mounting frame; starting a control system of the equipment, sequentially inflating the air cylinder, pressing down the guide rod, driving the outer welding head, the shaft and the shaft sleeve to move towards the fixing frame along the guide rail by the guide rod, and pressing the outer welding head, the shaft and the shaft sleeve on the workpiece mounting frame, wherein the energy accumulator discharges electricity to the outer welding head and the inner welding head; an ultra-large current is generated between the outer welding head and the inner welding head, so that the salient points at the joint of the workpiece and the mounting frame are quickly discharged, a large amount of heat is locally generated, and the joint of the salient points of the workpiece is melted and adhered together; when a workpiece is welded, the control system releases the gas of the cylinder, the guide rod moves outwards to be separated from the welded workpiece, and then the next shaft and shaft sleeve are welded until all the shafts and the shaft sleeves are welded.

5. The welding process of the transmission shaft and the shaft sleeve of the washing machine as claimed in any one of claims 1 to 4, wherein: the central line of the guide rod is opposite to the center of the fixed frame.