Shaft key groove forming mechanism for washing machine

Abstract

The utility model belongs to the technical field of keyway opening, and particularly relates to a shaft keyway opening mechanism for a washing machine, which comprises a bottom plate and a workbench, sliding rods are symmetrically fixed on the surface of the bottom plate, sliding blocks are symmetrically arranged at the bottom of the workbench, a central block is fixed in the middle of the bottom of the bottom plate, and a first rotating motor is mounted on the bottom plate. A first rotating motor is fixed to the surface of the workbench, the output end of the first rotating motor is connected with a screw rod, a second rotating motor is fixed to the surface of the workbench, the output end of the second rotating motor is connected with an eccentric disc, an eccentric shaft is fixed to the eccentric disc, a connecting block is hinged to the eccentric shaft, and a first threaded sleeve is fixed to one side of the connecting block. A first threaded sleeve is fixed to one side of the first threaded sleeve, a mounting screw is mounted in the first threaded sleeve in a threaded fit mode, a second threaded sleeve is arranged on one side of the mounting screw in a threaded fit mode, and a hinge block is fixed to one side of the second threaded sleeve.

Description

Technical Field

[0001] The utility model belongs to the technical field of key slot opening, in particular to a shaft key slot opening mechanism for a washing machine. Background Art

[0002] The washing drum inside the washing machine needs to be installed through shafts, and the shaft parts need to be polished. Shaft parts are one of the most typical parts among many hardware accessories, and are mainly used to support transmission parts, transmit torque and bear loads.

[0003] The Chinese patent with the authorization announcement number CN208289486U discloses a rotor shaft keyway milling processing equipment, which belongs to the field of mechanical technology. It solves the problem of low processing efficiency of the existing rotor shaft keyway milling processing equipment. The rotor shaft keyway milling processing equipment includes a workbench and a milling machine head arranged above the workbench. The milling machine head is provided with a milling cutter. A clamping body is fixedly connected to the workbench. One side of the clamping body is provided with a clamping opening 1, and the other side thereof is provided with a clamping opening 2. The workbench is also provided with a chuck 1 driven by a power unit 1 and a chuck 2 driven by a power unit 2. The chuck 1 has a clamping opening 3 arranged opposite to the clamping opening 1, and the chuck 2 has a clamping opening 4 arranged opposite to the clamping opening 2. The workbench is also provided with a support structure for supporting the rear end of the rotor shaft. The utility model has the advantages of high working efficiency and high precision.

[0004] The above patent processes the keyway by a milling cutter. When the tool head is used for processing, the tool head cannot be quickly disassembled and replaced, and the keyway needs to be cleaned during or after processing. The staff also needs to manually remove the debris in the keyway, resulting in poor use effect. Utility Model Content

[0005] The utility model overcomes the deficiencies of the prior art and solves the technical problems of disassembling and replacing the cutter head and cleaning the debris in the keyway.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a shaft keyway mechanism for a washing machine, comprising a base plate and a workbench, wherein sliding rods are symmetrically fixed to the surface of the base plate, sliding blocks are symmetrically arranged at the bottom of the workbench, a center block is fixed to the middle part of the bottom of the workbench, a first rotating motor is installed on the base plate, a screw is connected to the output end of the first rotating motor, a second rotating motor is fixed to the surface of the workbench, an eccentric disk is connected to the output end of the second rotating motor, an eccentric shaft is fixed to the eccentric disk, a connecting block is hingedly connected to the eccentric shaft, a first threaded sleeve is fixed to one side of the connecting block, a mounting screw is installed with the internal thread of the first threaded sleeve, a second threaded sleeve is threadedly fitted to one side of the mounting screw, a hinge block is fixed to one side of the second threaded sleeve.

[0007] A positioning frame is also fixed on the surface of the workbench. A striking rod is slidably connected inside the positioning frame. One end of the striking rod is hinged to a hinge block, and a slot head is fixed at the other end of the striking rod. A knife groove penetrates through one side of the slot head, and a knife body is detachably installed inside the knife groove. A cleaning member is detachably connected above the knife body.

[0008] Furthermore, a threaded groove is provided on one side of the slot head, and a disassembly shaft is threadedly engaged inside the threaded groove. A positioning shaft is fixed at one end of the disassembly shaft.

[0009] Furthermore, a plurality of side wall holes are opened on both sides of the knife body. The positioning shaft is fitted and clamped on the side wall holes to improve the stability of the knife body. A plurality of side wall holes are opened on both sides of the knife body. When installing the knife body, the knife body can be installed in a positive or negative direction without deliberately aligning the installation direction of the knife body.

[0010] Furthermore, the cleaning member is composed of a mounting head, a fixing plate and a brush layer. A fixing plate is fixed above the mounting head, and the brush layer is distributed on the surface of the fixing plate. A threaded hole is provided at the top of the knife body, and the threaded hole is threadedly engaged with the mounting head. The brush layer can be used to clean the key groove, integrating key groove opening and cleaning.

[0011] In summary, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) The eccentric shaft drives the connecting block to rotate, then the hinge block will pull the striking rod to move back and forth. The rotation of the eccentric shaft is converted into a linear motion of the slot head. There is a tool bit below the knife body, and the tool bit will cut into the workpiece to realize the function of opening the key groove. The function of the brush layer can facilitate the cleaning of the interior of the processed key groove during processing.

[0013] (2) The side wall holes are opened on both sides of the knife body. When installing the knife body, the knife body can be installed in a positive or negative direction without deliberately aligning the installation direction of the knife body. Insert the knife body into the knife groove, and then threadedly tighten the disassembly shaft in the threaded groove. The positioning shaft of the disassembly shaft will be clamped inside the side wall hole to stabilize the knife body, improving the stability of the knife body. Compared with simply fixing by nut extrusion, the stability effect is better, and the cooperation of any side wall hole and the positioning shaft can conveniently change the installation position of the knife body to be suitable for the depth of processing the key groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic sectional structure diagram of the slot head of the present utility model;

[0016] Figure 3 is a schematic diagram of the structure of the knife body of the present utility model;

[0017] Figure 4 Schematic diagram of some parts of this utility model;

[0018] Explanation of reference numerals in the drawings: 10, base plate; 11, slide bar; 12, workbench; 13, slider; 14, center block; 15, first rotary motor; 16, screw; 17, second rotary motor; 18, eccentric disc; 19, eccentric shaft; 20, connecting block; 21, first threaded sleeve; 22, mounting screw; 23, second threaded sleeve; 24, hinge block; 25, positioning bracket; 26, striking rod; 27, slot head; 28, tool slot; 29, tool body; 30, tool head; 31, side wall hole; 32, threaded groove; 33, disassembly shaft; 34, positioning shaft; 35, mounting head; 36, fixing plate; 37, brush layer; 38, threaded hole. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model.

[0020] Refer to Figures 1-4 , a keyway machining mechanism for a shaft part used in a washing machine, including a base plate 10 and a workbench 12. Slide bars 11 are symmetrically fixed on the surface of the base plate 10. Sliders 13 are symmetrically provided at the bottom of the workbench 12. A center block 14 is fixed at the middle part of the bottom of the workbench 12. A first rotary motor 15 is installed on the base plate 10, and the output end of the first rotary motor 15 is connected with a screw 16; when machining a keyway in a workpiece, under the start of the first rotary motor 15, it can be used to adjust the position of the workbench 12 to widen the width of the keyway machining, so as to adapt to the keyway machining of workpieces of different sizes.

[0021] Refer to Figure 1 , a second rotary motor 17 is fixed on the surface of the workbench 12. The output end of the second rotary motor 17 is connected with an eccentric disc 18. An eccentric shaft 19 is fixed on the eccentric disc 18. A connecting block 20 is hinge-connected to the eccentric shaft 19. A first threaded sleeve 21 is fixed on one side of the connecting block 20. A mounting screw 22 is installed in the first threaded sleeve 21 in a threaded fit manner. A second threaded sleeve 23 is in a threaded fit with one side of the mounting screw 22. A hinge block 24 is fixed on one side of the second threaded sleeve 23. The two ends of the mounting screw 22 are respectively in a threaded fit with the second threaded sleeve 23 and the first threaded sleeve 21, which is convenient for disassembly.

[0022] On the surface of the workbench 12, a positioning frame 25 is also fixed. A striker 26 is slidably connected inside the positioning frame 25. One end of the striker 26 is hinged to the hinge block 24, and a slot head 27 is fixed to the other end of the striker 26. When the second rotating motor 17 is started, the eccentric shaft 19 drives the connecting block 20 to rotate, then the hinge block 24 will pull the striker 26 to move back and forth. The rotation of the eccentric shaft 19 is converted into the linear motion of the slot head 27. There is a tool tip 30 below the tool body 29, and the tool tip 30 will cut into the workpiece to realize the function of opening a keyway.

[0023] Reference Figure 2 , a tool groove 28 penetrates through one side of the slot head 27, and the tool body 29 is detachably installed inside the tool groove 28. The detachable tool body 29 can facilitate the staff to replace the tool body 29, and different-shaped or -sized keyways can be opened by changing different tool bodies 29; a threaded groove 32 is provided on one side of the slot head 27, and a disassembly shaft 33 is in threaded engagement inside the threaded groove 32. The outer wall of the disassembly shaft 33 is provided with a threaded structure. One end of the disassembly shaft 33 is fixed with a positioning shaft 34. A number of side wall holes 31 are opened on both sides of the tool body 29. The side wall holes 31 are on both sides of the tool body 29. When installing the tool body 29, the tool body 29 can be installed in a positive or negative direction without deliberately aligning the installation direction of the tool body 29. The positioning shaft 34 is fitted and clamped on the side wall holes 31. The installation position of the tool body 29 is determined by the cooperation of the positioning shaft 34 and the side wall holes 31. When in use, the tool body 29 is installed according to the processing position. Only need to insert the tool body 29 into the tool groove 28, and then threadedly fasten the disassembly shaft 33 in the threaded groove 32. The positioning shaft 34 of the disassembly shaft 33 will be clamped inside the side wall holes 31 to stabilize the tool body 29, improving the stability of the tool body 29. The stability effect is better than simply fixing by squeezing with a nut, and the installation position of the tool body 29 can be conveniently changed by the cooperation of any side wall hole 31 and the positioning shaft 34 to be suitable for the depth of the keyway processed.

[0024] Reference Figures 2-4 , a cleaning part is detachably connected above the tool body 29. The cleaning part is composed of a mounting head 35, a fixing plate 36 and a brush layer 37. The fixing plate 36 is fixed above the mounting head 35, and the brush layer 37 is distributed on the surface of the fixing plate 36. A threaded hole 38 is provided at the top of the tool body 29, and the threaded hole 38 is in threaded engagement with the mounting head 35, which can facilitate the disassembly of the cleaning part and the replacement of the cleaning part. There will be too many chips on the surface of the keyway after it is opened. The workpiece is clamped by the chuck. Only need to rotate the chuck 90° to adjust the angle of the workpiece so that the opened keyway is above the brush layer 37 to clean the inside of the keyway, integrating keyway opening and cleaning, or manually changing the direction of the tool body 29 to make the brush layer 37 face downward to clean the chips in the keyway under the back-and-forth movement of the striker 26.

[0025] Working principle: Under the drive of the second rotating motor 17, the eccentric shaft 19 drives the connecting block 20 to rotate, then the articulated block 24 will pull the striking rod 26 to move back and forth, and the rotation of the eccentric shaft 19 is converted into the linear motion of the slot head 27, and the cutter head 30 will cut into the workpiece to realize the function of keyway cutting;

[0026] When cutting a keyway in the workpiece, under the drive of the first rotating motor 15, it can be used to adjust the position of the workbench 12 to widen the width of the keyway cutting and adapt to the keyway cutting sizes of workpieces of different sizes;

[0027] Insert the tool body 29 into the tool groove 28, and then thread-fasten the disassembly shaft 33 in the threaded groove 32. The positioning shaft 34 of the disassembly shaft 33 will be clamped inside the side wall hole 31 to stably hold the tool body 29. Through the cooperation of any side wall hole 31 and the positioning shaft 34, it is convenient to change the installation position of the tool body 29 to be suitable for machining the depth of the keyway.

[0028] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects.

[0029] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0030] The above description shows and describes several preferred embodiments of the present application. However, as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as an exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be within the scope of the application concept described herein, through the above teachings or the technology or knowledge in related fields for modification. And any modifications and changes made by those skilled in the art without departing from the spirit and scope of the present application shall fall within the protection scope of the appended claims of the present application.

Claims

1. A key slot opening mechanism for a shaft of a washing machine, comprising a workbench (12), characterized in that: A second rotating motor (17) is fixed to the surface of the workbench (12); an output end of the second rotating motor (17) is connected to an eccentric disk (18); an eccentric shaft (19) is fixed to the eccentric disk (18); a connecting block (20) is hingedly connected to the eccentric shaft (19); a first threaded sleeve (21) is fixed to one side of the connecting block (20); a mounting screw (22) is mounted on the inner thread of the first threaded sleeve (21); a second threaded sleeve (23) is threadedly mounted on one side of the mounting screw (22); a hinged block (24) is fixed to one side of the second threaded sleeve (23); A positioning frame (25) is also fixed on the surface of the workbench (12), a striker (26) is slidably connected inside the positioning frame (25), one end of the striker (26) is hingedly connected to the hinge block (24), a slot head (27) is fixed on the other end of the striker (26), a knife groove (28) is passed through one side of the slot head (27), a knife body (29) is conveniently disassembled inside the knife groove (28), and a cleaning piece is detachably connected above the knife body (29).

2. A key slot mechanism for a shaft of a washing machine according to claim 1, characterized in that: A thread groove (32) is provided on one side of the slot head (27), a disassembly shaft (33) is threadedly engaged inside the thread groove (32), and a positioning shaft (34) is fixed to one end of the disassembly shaft (33).

3. A key slot mechanism for a shaft of a washing machine according to claim 2, characterized in that: A plurality of side wall holes (31) are formed on both sides of the blade body (29), and the positioning shaft (34) is fitted and clamped on the side wall holes (31).

4. A key slot mechanism for a shaft of a washing machine according to claim 1, characterized in that: The cleaning piece is composed of a mounting head (35), a fixing plate (36) and a brush layer (37); a fixing plate (36) is fixed above the mounting head (35); a brush layer (37) is distributed on the surface of the fixing plate (36); a threaded hole (38) is provided at the top of the blade body (29); and the threaded hole (38) is threadedly engaged with the mounting head (35).

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