Necking and flaring processing device for metal fittings of washing machine and processing method of necking and flaring processing device

Abstract

The invention belongs to the technical field of washing machine metal accessories, and particularly relates to a necking and flaring machining device for washing machine metal accessories and a machining method thereof.The necking and flaring machining device comprises a base and side plates fixed to the two sides of the surface of the base, and further comprises a machining assembly arranged above the base; omnibearing necking and flaring machining of metal accessories can be achieved in the relative movement process, the machining uniformity and speed are greatly improved, and the defect that local machining is excessive or insufficient easily due to static machining is overcome. Therefore, the necking or flaring metal fittings can reach ideal standards in the aspects of size precision, shape precision, surface quality and the like, high-quality machining tasks can be completed in a shorter time, the machining cycle of a single metal fitting is remarkably shortened, the production efficiency of equipment is improved, manual intervention is not needed, and the production cost is reduced. The operation process is simplified, and uncertainty and errors caused by manual operation are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of metal accessories for washing machines, and in particular relates to a necking and expanding processing device for metal accessories for washing machines and a processing method thereof. Background Art

[0002] With the continuous growth of market demand for washing machines and the increasing demand of consumers for product quality, the shrinking and expanding processing of metal accessories is one of the key production links in the field of washing machine manufacturing; Although the existing shrinking and expanding processing devices in life have met the use needs of users to a certain extent, there are still certain defects in the use process. The specific problems are as follows: traditional shrinking and expanding processing mostly adopts a static processing mode. Since the metal accessories are stationary, the shrinking or expanding tools can only gradually apply force in a local area, resulting in a long processing time. The processing cycle of a single metal accessory is long, which is difficult to meet the needs of large-scale and high-efficiency production of modern washing machines. In addition, static processing is difficult to achieve all-round uniform force on metal accessories, and local processing is prone to over- or under-processing, making it difficult to achieve ideal dimensional accuracy, shape accuracy and surface quality after shrinking or expanding. This not only affects the performance and service life of the metal accessories themselves, but also has a negative impact on the overall assembly accuracy and operation stability of the washing machine; In order to solve the above problems, the present application proposes a necking and expanding processing device and a processing method for metal accessories of a washing machine. Summary of the invention

[0003] The present invention provides a necking and expanding processing device and a processing method for metal accessories of a washing machine, which can effectively solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A shrinking and expanding processing device for metal accessories of a washing machine, comprising a base and side plates fixed on both sides of the surface of the base; It also includes a processing assembly arranged above the base, the processing assembly includes a positioning frame fixed on the surface of the base, a processing plate arranged on one side of the positioning frame, and an expansion cone, a shrinking sleeve, a close-fitting cylinder, a fixing seat and a rotating motor for shrinking and expanding the metal accessories of the washing machine; It also includes a reversing component installed between the two groups of side panels, and the reversing component includes a support frame fixed between the top ends of the two groups of side panels, a lifting cylinder screwed to the surface of the support frame, and a lifting plate, a rotating shaft, a rotating plate and a clamping claw used to reverse the metal accessories of the washing machine placed on the surface of the positioning frame.

[0005] As a preferred shrinking and expanding processing device for washing machine metal accessories of the present invention, a convex expanding cone and a concave shrinking sleeve are respectively fixed on both sides of the surface of the processing plate, the surface of the side plate is screwed connected with an abutting cylinder, the output end of the abutting cylinder faces the surface of the processing plate, a fixing seat is provided on the side of the positioning frame away from the processing plate, the surface of the side plate is screwed connected with a rotating motor, and the output end of the rotating motor is fixedly connected to the fixing seat.

[0006] As a preferred shrinking and expanding processing device for metal accessories of a washing machine according to the present invention, an upper hopper with an inclined structure is fixed on the rear side of the surface of the base, a baffle plate is fixed on the surface of the discharge end of the upper hopper, a pushing frame is arranged between the positioning frame and the upper hopper, and pushing grooves matching the pushing frame are respectively provided inside the positioning frame and the upper hopper, two groups of pushing cylinders are fixed between the pushing frame and the base, a lower hopper is fixed on the front side of the surface of the base, and one end of the lower hopper is attached to the surface of the positioning frame.

[0007] As a preferred shrinking and expanding processing device for washing machine metal accessories of the present invention, a switching cylinder is fixed on one side of the processing plate, a translation rail is fixed on the side of the side plate surface close to the switching cylinder, and the switching cylinder is slidably connected to the surface of the translation rail.

[0008] As a preferred shrinking and expanding processing device for metal accessories of a washing machine according to the present invention, a hinge seat is arranged between the fixed seat and the positioning frame, and a spring is fixed between the hinge seat and the fixed seat, hinge rods are hinged at the four corners of the surface of the hinge seat, a clamping rod is hinged at one end of the hinge rod, and the clamping rod is hinged to the surface of the fixed seat, and a pressure seat is fixed on one side of the hinge seat.

[0009] As a preferred shrinking and expanding processing device for washing machine metal accessories of the present invention, a lifting plate is fixed to the output end of the lifting cylinder, a rotating shaft is rotatably connected to the middle part of the lower surface of the lifting plate, a rotating plate is fixed to the bottom end of the rotating shaft, and clamps are symmetrically arranged on both sides of the lower surface of the rotating plate.

[0010] As a preferred shrinking and expanding processing device for metal accessories of a washing machine according to the present invention, limit rods are symmetrically fixed on both sides of the surface of the lifting plate, and a limit groove matched with the limit rod is opened inside the support frame, a reversing gear is fixed on the surface of the rotating shaft, a reversing rack is meshingly connected to the surface of the reversing gear, and the reversing rack is slidably connected in a positioning groove opened inside the lifting plate, a reversing cylinder is screwed to the lower surface of the lifting plate, and the output end of the reversing cylinder is fixedly connected to one end of the reversing rack.

[0011] As a preferred shrinking and expanding processing device for washing machine metal accessories of the present invention, fixing frames are symmetrically fixed on both sides of the lower surface of the rotating plate, and the internal screws of the fixing frames are connected to bidirectional clamping cylinders, and the output ends on both sides of the bidirectional clamping cylinders are fixedly connected to the clamping claws.

[0012] The present invention also provides a necking and expanding processing device for metal accessories of a washing machine and a processing method thereof, comprising the following steps: S1. When the metal parts of the washing machine need to be processed by shrinking and expanding, firstly, the tubular metal parts of the washing machine are slid down from the loading hopper, and the pushing cylinder is started to push the pushing frame to push the metal parts into the interior of the positioning frame to complete the loading; S2, then start the switching cylinder to push the processing plate to drive the expanding cone and the shrinking sleeve to move, complete the rapid switching of the expanding and shrinking processing, and then start the sticking cylinder to push the processing plate close to the positioning frame, so that the expanding cone or the shrinking sleeve can contact with the metal fittings; S3. After the expanding cone or the shrinking sleeve contacts the metal accessory, the metal accessory will slide along the surface of the positioning frame, thereby pushing the pressure seat to squeeze the compression spring of the hinge seat, and then driving the clamping rod to approach the surface of the metal accessory, thereby stably clamping the metal accessory; S4, then start the rotating motor to drive the metal fittings on the fixed seat and the clamping rod to rotate synchronously, and cooperate with the fixed expanding cone or shrinking sleeve to enable the metal fittings to achieve all-round shrinking and expanding processing in relative motion; S5. After the shrinking or expanding process of one end of the metal fitting is completed, the abutting cylinder is started to reset, and the extrusion and clamping of the metal fitting are released under the action of the spring force. Then the lifting cylinder is started to push the lifting plate, which can drive the clamping claw to move downward synchronously; S6. When the clamp moves down to the location of the metal fitting, the clamp is driven to clamp the processed metal fitting by starting the bidirectional clamping cylinder, and then the reversing cylinder is started to push the reversing rack to move, thereby driving the reversing gear and the rotating shaft to rotate, and then the rotating plate and the metal fitting clamped thereunder are driven to rotate, thereby changing the direction of the metal fitting; S7, then, start the bidirectional clamping cylinder to release the clamping claws, and the metal fitting will fall into the positioning frame again, and then start the abutting cylinder and the switching cylinder again, and then the other end of the metal fitting can be shrunken or expanded; S8. After the processing of both ends of the metal accessories is completed, the push cylinder is started to push the push frame upward, and the processed metal accessories are pushed out of the positioning frame and dropped into the unloading hopper to complete the unloading. At the same time, the metal accessories that slide and block on the surface of the baffle plate can be automatically loaded, thus realizing the cyclic operation of the entire processing process.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use: 1. A processing component is provided to enable metal accessories to achieve all-round shrinking and expanding processing in relative motion, which greatly improves the uniformity and speed of processing and overcomes the disadvantages of local over- or under-processing in static processing. This enables the metal accessories after shrinking or expanding to meet ideal standards in terms of dimensional accuracy, shape accuracy and surface quality, fully guaranteeing the excellent performance of the metal accessories themselves. Compared with the traditional static processing mode, it can complete high-quality processing tasks in a shorter time, significantly shorten the processing cycle of a single metal accessory, improve the production efficiency of the equipment, and does not require manual intervention, simplifying the operation process and reducing the uncertainty and error caused by manual operation.

[0014] 2. A reversing component is set up to quickly and accurately change the direction of metal accessories. After completing the processing of one end, there is no need to manually adjust the position and direction of the accessories. The automated reversing process not only greatly shortens the processing interval time, allowing the equipment to immediately shrink or expand the other end of the metal accessories, ensuring the continuity of the entire processing process, but also avoids operational errors and instability caused by factors such as fatigue and skill differences during manual operation, ensuring that each metal accessory can be processed according to the preset standard process, effectively improving production efficiency, reducing production cycles, and meeting the needs of large-scale, high-efficiency production of washing machine metal accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the processing assembly in the present invention; Figure 3 It is a schematic diagram of the structure of the fixing seat and the clamping rod in the present invention; Figure 4 It is a cross-sectional view of the upper hopper and the positioning frame in the present invention; Figure 5 It is a structural schematic diagram of the reversing component in the present invention; Figure 6 It is a schematic diagram of the structure of the rotating plate and the clamping claw in the present invention.

[0016] In the figure: 1, base; 2, side plate; 3, processing assembly; 31, upper hopper; 32, material blocking plate; 33, positioning frame; 34, push frame; 35, push cylinder; 36, lower hopper; 37, processing plate; 38, expansion cone; 39, shrink sleeve; 310, abutment cylinder; 311, switching cylinder; 312, translation slide rail; 313, fixed seat; 314, spring; 315, hinged seat ; 316, articulated rod; 317, clamping rod; 318, pressure seat; 319, rotating motor; 4, reversing assembly; 41, support frame; 42, lifting cylinder; 43, lifting plate; 44, limit rod; 45, rotating shaft; 46, reversing gear; 47, reversing rack; 48, reversing cylinder; 49, rotating plate; 410, fixed frame; 411, two-way clamping cylinder; 412, clamping claw. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-Figure 6 As shown, the present invention provides a technical solution, a shrinking and expanding processing device for metal accessories of a washing machine, comprising a base 1 and side panels 2 fixed on both sides of the surface of the base 1; The processing assembly 3 is also provided above the base 1, and the processing assembly 3 includes an upper hopper 31, a material blocking plate 32, a positioning frame 33, a push frame 34, a push cylinder 35, a lower hopper 36, a processing plate 37, an expanding cone 38, a shrinking sleeve 39, a close-fitting cylinder 310, a switching cylinder 311, a translation slide rail 312, a fixed seat 313, a spring 314, an articulated seat 315, an articulated rod 316, a clamping rod 317, a pressure seat 318 and a rotating motor 319; An upper hopper 31 with an inclined structure is fixed to the rear side of the surface of the base 1, a baffle plate 32 is fixed to the surface of the discharge end of the upper hopper 31, a positioning frame 33 is fixed to the side of the surface of the base 1 close to the baffle plate 32, a pushing frame 34 is arranged between the positioning frame 33 and the upper hopper 31, and the interiors of the positioning frame 33 and the upper hopper 31 are respectively provided with pushing grooves adapted to the pushing frame 34, two groups of pushing cylinders 35 are fixed between the pushing frame 34 and the base 1, a lower hopper 36 is fixed to the front side of the surface of the base 1, and one end of the lower hopper 36 is affixed to the surface of the positioning frame 33, a processing plate 37 is arranged on one side of the positioning frame 33, and a convex expansion cone 38 and a concave shrinking sleeve 39 are respectively fixed to the two sides of the surface of the processing plate 37, and a cylinder 310 is screwed to the surface of the side plate 2, and the output end of the cylinder 310 is directly opposite to the processing plate The surface of the processing plate 37 is fixed with a switching cylinder 311 on one side of the processing plate 37, a translation slide rail 312 is fixed on the side of the side plate 2 close to the switching cylinder 311, and the switching cylinder 311 is slidably connected to the surface of the translation slide rail 312, a fixed seat 313 is provided on the side of the positioning frame 33 away from the processing plate 37, a hinge seat 315 is provided between the fixed seat 313 and the positioning frame 33, and a spring 314 is fixed between the hinge seat 315 and the fixed seat 313, hinge rods 316 are hinged at the four corners of the surface of the hinge seat 315, one end of the hinge rod 316 is hinged with a clamping rod 317, and the clamping rod 317 is hinged on the surface of the fixed seat 313, a pressure seat 318 is fixed on one side of the hinge seat 315, a rotating motor 319 is screwed to the surface of the side plate 2, and the output end of the rotating motor 319 is fixedly connected to the fixed seat 313.

[0019] The invention also includes a reversing assembly 4 installed between the two sets of side plates 2, and the reversing assembly 4 includes a support frame 41, a lifting cylinder 42, a lifting plate 43, a limit rod 44, a rotating shaft 45, a reversing gear 46, a reversing rack 47, a reversing cylinder 48, a rotating plate 49, a fixing frame 410, a bidirectional clamping cylinder 411 and a clamping claw 412; A support frame 41 is fixed between the top ends of the two sets of side panels 2, a lifting cylinder 42 is screwed to the surface of the support frame 41, a lifting plate 43 is fixed to the output end of the lifting cylinder 42, limiting rods 44 are symmetrically fixed to the surfaces of the lifting plates 43, and limiting grooves matching the limiting rods 44 are provided inside the support frame 41, a rotating shaft 45 is rotatably connected to the middle of the lower surface of the lifting plate 43, a reversing gear 46 is fixed to the surface of the rotating shaft 45, and a reversing rack 47 is meshedly connected to the surface of the reversing gear 46 , and the reversing rack 47 is slidably connected in the positioning groove opened inside the lifting plate 43, the lower surface of the lifting plate 43 is screwed connected with a reversing cylinder 48, and the output end of the reversing cylinder 48 is fixedly connected to one end of the reversing rack 47, a rotating plate 49 is fixed to the bottom end of the rotating shaft 45, and fixed frames 410 are symmetrically fixed on both sides of the lower surface of the rotating plate 49, and the internal screws of the fixed frame 410 are connected with a two-way clamping cylinder 411, and the output ends of the two sides of the two-way clamping cylinder 411 are symmetrically fixed with clamping claws 412.

[0020] The present invention also provides a necking and expanding processing device for metal accessories of a washing machine and a processing method thereof, comprising the following steps: S1. When the metal parts of the washing machine need to be processed by shrinking and expanding, first slide the tubular metal parts of the washing machine from the loading hopper 31, start the pushing cylinder 35 to push the pushing frame 34 to push the metal parts into the positioning frame 33 to complete the loading; S2, then start the switching cylinder 311 to push the processing plate 37 to drive the expanding cone 38 and the shrinking sleeve 39 to move, completing the rapid switching between the expanding and shrinking processing, and then start the sticking cylinder 310 to push the processing plate 37 to move closer to the positioning frame 33, so that the expanding cone 38 or the shrinking sleeve 39 can contact the metal fittings; S3. After the expanding cone 38 or the shrinking sleeve 39 contacts the metal accessory, the metal accessory will slide along the surface of the positioning frame 33, thereby pushing the pressure seat 318 to squeeze the hinge seat 315 to compress the spring 314, and then drive the clamping rod 317 to approach the surface of the metal accessory, thereby stably clamping the metal accessory; S4, then start the rotating motor 319 to drive the metal fittings on the fixed seat 313 and the clamping rod 317 to rotate synchronously, and cooperate with the fixed expanding cone 38 or shrinking sleeve 39 to enable the metal fittings to achieve all-round shrinking and expanding processing in relative motion; S5. After the shrinking or expanding process of one end of the metal fitting is completed, the abutting cylinder 310 is started to reset, and the extrusion and clamping of the metal fitting are released under the action of the elastic force of the spring 314. Then, the lifting cylinder 42 is started to push the lifting plate 43, which can drive the clamping claw 412 to move downward synchronously. S6. When the clamping jaw 412 moves down to the position of the metal fitting, the two-way clamping cylinder 411 is started to drive the clamping jaw 412 to clamp the processed metal fitting, and then the reversing cylinder 48 is started to push the reversing rack 47 to move, thereby driving the reversing gear 46 and the rotating shaft 45 to rotate, and then the rotating plate 49 and the metal fitting clamped thereunder are driven to rotate, thereby changing the direction of the metal fitting; S7, then, start the bidirectional clamping cylinder 411 to release the clamping claw 412, and the metal fitting will fall into the interior of the positioning frame 33 again, and then start the abutting cylinder 310 and the switching cylinder 311 again, and then the other end of the metal fitting can be shrunken or expanded; S8. After the processing of both ends of the metal fittings is completed, the push cylinder 35 is started to push the push frame 34 to move upward, and the processed metal fittings are pushed out of the positioning frame 33 and dropped into the unloading hopper 36 to complete the unloading. At the same time, the metal fittings that slide down and are blocked on the surface of the baffle plate 32 can be automatically loaded, thus realizing the cyclic operation of the entire processing process.

[0021] Working principle: When it is necessary to perform shrinking and expanding processing on the metal accessories of the washing machine, first, the tubular metal accessories of the washing machine are slid down from the upper hopper 31 with an inclined structure. The baffle plate 32 can prevent the accessories from sliding down excessively. Then, the push cylinder 35 is started to push the push frame 34 to move upward in the push grooves provided in the positioning frame 33 and the upper hopper 31, so that the metal accessories located at the discharge end of the upper hopper 31 can be pushed into the positioning frame 33 for positioning, in preparation for subsequent processing. The metal accessories of the washing machine can slide down naturally under the action of gravity, realizing a fast and continuous loading process, improving the overall processing efficiency, and ensuring that each metal accessory can be accurately positioned in the same position before entering the processing link, ensuring the consistency of product processing accuracy, and improving the overall quality and quality stability of the metal accessories of the washing machine. Then, the switching cylinder 311 is started, and the switching cylinder 311 pushes the processing plate 37 to drive the expanding cone 38 and the shrinking sleeve 3 9 moves synchronously. When it is necessary to expand the metal fittings, by controlling the extension length of the switching cylinder 311, the expanding cone 38 can be aligned with the center of the positioning frame 33, so that its end is aligned with the center of the metal fitting. Then, the abutting cylinder 310 is started to push the processing plate 37 toward the positioning frame 33. The switching cylinder 311 can slide on the translation slide rail 312, thereby driving the expanding cone 38 to approach the center of the metal fitting. When the expanding cone 38 is inserted into the center of the metal fitting, the abutting cylinder 310 continues to push so that the expanding cone 38 gradually enters the interior of the metal fitting to complete the shrinking operation. Similarly, when shrinking is required, the switching cylinder 311 is controlled to make the shrinking sleeve 39 align with the metal fitting. The metal fitting contacts the inner wall of the shrinking sleeve 39 under the push of the abutting cylinder 310 and completes the shrinking operation. The rapid switching between expanding and shrinking processing can be easily realized, which greatly improves the versatility and processing flexibility of the equipment.

[0022] Furthermore, with the push of the abutting cylinder 310, when the expanding cone 38 or the shrinking sleeve 39 contacts the metal accessory, the metal accessory will slide along the surface of the positioning frame 33 and approach one side of the fixed seat 313 due to the push of the expanding cone 38 or the shrinking sleeve 39. When the metal accessory contacts the surface of the pressure seat 318, the pressure seat 318 can squeeze the hinge seat 315 to compress the spring 314 and move it, thereby driving the hinge rod 316 to move, thereby driving the clamping rod 317 to flip on the surface of the fixed seat 313 and approach the surface of the metal accessory, thereby stably clamping the metal accessory, which can improve the stable clamping force of the metal accessory and effectively prevent the metal accessory from shaking or falling off due to rotation or uneven force, thereby ensuring the safety and continuity of the processing process. Subsequently, the rotating motor 319 is started to drive the fixed seat 313 to rotate. It drives multiple groups of clamping rods 317 and the metal accessories clamped therebetween to rotate synchronously, and drives the fixed seat 313 and the metal accessories on the clamping rod 317 to rotate synchronously through the rotating motor 319, and cooperates with the fixed expanding cone 38 or shrinking sleeve 39 to enable the metal accessories to achieve all-round shrinking and expanding processing in relative motion, which greatly improves the uniformity and speed of processing and overcomes the disadvantages of static processing that local over- or under-processing is prone to occur. This allows the metal accessories after shrinking or expanding to meet ideal standards in terms of dimensional accuracy, shape accuracy and surface quality, and fully guarantees the excellent performance of the metal accessories themselves. Compared with the traditional static processing mode, it can complete high-quality processing tasks in a shorter time, significantly shortening the processing cycle of a single metal accessory, improving the production efficiency of the equipment, and does not require manual intervention, simplifying the operation process, and reducing the uncertainty and error caused by manual operation.

[0023] Furthermore, after the shrinking or expanding processing of one end of the metal accessory is completed, the abutting cylinder 310 is started to reset, and under the action of the elastic force of the spring 314, the extrusion and clamping of the metal accessory are released, and then the lifting cylinder 42 is started to push the lifting plate 43 down, so that the rotating plate 49 is close to the positioning frame 33. As the rotating plate 49 moves downward, the clamping claw 412 can be driven to move downward synchronously. When the clamping claw 412 moves down to the position of the metal accessory, the clamping claw 412 is driven to clamp the processed metal accessory by starting the two-way clamping cylinder 411. Then, the reversing cylinder 48 is started to push the reversing rack 47 to slide in the positioning groove opened inside the lifting plate 43, thereby driving the reversing gear 46 and the rotating shaft 45 to rotate under the lifting plate 43, which can drive the rotating plate 49 and the metal accessory clamped thereunder to rotate, thereby changing the direction of the metal accessory. Then, The bidirectional clamping cylinder 411 releases the clamping claw 412, and the metal accessory will fall into the interior of the positioning frame 33 again. Then, the abutting cylinder 310 and the switching cylinder 311 are started again to shrink or expand the other end of the metal accessory. The direction of the metal accessory can be changed quickly and accurately. After completing the processing of one end, there is no need to manually adjust the position and direction of the accessory. The automated reversing process not only greatly shortens the processing interval time, allowing the equipment to immediately shrink or expand the other end of the metal accessory, ensuring the continuity of the entire processing process, but also avoids operational errors and instability caused by factors such as fatigue and skill differences during manual operation, ensuring that each metal accessory can be processed according to the preset standard process, effectively improving production efficiency, reducing production cycle, and meeting the needs of large-scale and high-efficiency production of washing machine metal accessories.

[0024] It is worth noting that after the processing of both ends of the metal accessories is completed, the push cylinder 35 is started to push the push frame 34 to move upward, and the processed metal accessories are pushed out of the positioning frame 33 and dropped into the discharge hopper 36 to complete the unloading. At the same time, the metal accessories that slide down and are blocked on the surface of the baffle plate 32 can be automatically loaded, thus realizing the cyclic operation of the entire processing process.

[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shrinking and expanding processing device for metal accessories of a washing machine, comprising a base (1) and side panels (2) fixed on both sides of the surface of the base (1); Features: It also includes a processing assembly (3) arranged above the base (1), the processing assembly (3) including a positioning frame (33) fixed to the surface of the base (1), a processing plate (37) arranged on one side of the positioning frame (33), and an expansion cone (38), a shrinking sleeve (39), an abutting cylinder (310), a fixing seat (313) and a rotating motor (319) for performing shrinking and expanding processing on metal accessories of the washing machine; It also includes a reversing assembly (4) installed between the two sets of side panels (2), the reversing assembly (4) including a support frame (41) fixed between the top ends of the two sets of side panels (2), a lifting cylinder (42) screwed to the surface of the support frame (41), a lifting plate (43) for reversing the metal accessories of the washing machine placed on the surface of the positioning frame (33), a rotating shaft (45), a rotating plate (49) and a clamping claw (412).

2. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 1, characterized in that: An expanding cone (38) with a convex structure and a shrinking sleeve (39) with a concave structure are respectively fixed to both sides of the surface of the processing plate (37); a cylinder (310) is screwed to the surface of the side plate (2); an output end of the cylinder (310) faces the surface of the processing plate (37); a fixing seat (313) is provided on the side of the positioning frame (33) away from the processing plate (37); a rotating motor (319) is screwed to the surface of the side plate (2); and the output end of the rotating motor (319) is fixedly connected to the fixing seat (313).

3. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 1, characterized in that: An upper hopper (31) with an inclined structure is fixed on the rear side of the surface of the base (1), a material blocking plate (32) is fixed on the surface of the discharge end of the upper hopper (31), a push frame (34) is arranged between the positioning frame (33) and the upper hopper (31), and push grooves matching the push frame (34) are respectively provided inside the positioning frame (33) and the upper hopper (31), two groups of push cylinders (35) are fixed between the push frame (34) and the base (1), and a lower hopper (36) is fixed on the front side of the surface of the base (1), and one end of the lower hopper (36) is attached to the surface of the positioning frame (33).

4. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 1, characterized in that: A switching cylinder (311) is fixed on one side of the processing plate (37), a translational slide rail (312) is fixed on the side of the surface of the side plate (2) close to the switching cylinder (311), and the switching cylinder (311) is slidably connected to the surface of the translational slide rail (312).

5. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 1, characterized in that: An articulated seat (315) is provided between the fixed seat (313) and the positioning frame (33), and a spring (314) is fixed between the articulated seat (315) and the fixed seat (313). Articulated rods (316) are hinged at four corners of the surface of the articulated seat (315), one end of the articulated rod (316) is hinged to a clamping rod (317), and the clamping rod (317) is hinged to the surface of the fixed seat (313), and a pressure seat (318) is fixed to one side of the articulated seat (315).

6. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 1, characterized in that: A lifting plate (43) is fixed to the output end of the lifting cylinder (42); a rotating shaft (45) is rotatably connected to the middle of the lower surface of the lifting plate (43); a rotating plate (49) is fixed to the bottom end of the rotating shaft (45); and clamping claws (412) are symmetrically arranged on both sides of the lower surface of the rotating plate (49).

7. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 6, characterized in that: Limit rods (44) are symmetrically fixed on both sides of the surface of the lifting plate (43), and a limit groove matched with the limit rod (44) is provided inside the support frame (41). A reversing gear (46) is fixed on the surface of the rotating shaft (45), and a reversing rack (47) is meshingly connected to the surface of the reversing gear (46), and the reversing rack (47) is slidably connected to a positioning groove provided inside the lifting plate (43). A reversing cylinder (48) is screwed to the lower surface of the lifting plate (43), and an output end of the reversing cylinder (48) is fixedly connected to one end of the reversing rack (47).

8. The shrinking and expanding processing device for metal accessories of a washing machine according to claim 6, characterized in that: Fixed frames (410) are symmetrically fixed on both sides of the lower surface of the rotating plate (49), the internal screws of the fixed frames (410) are connected to a bidirectional clamping cylinder (411), and the output ends on both sides of the bidirectional clamping cylinder (411) are fixedly connected to the clamping claws (412).

9. A method for using the device for shrinking and expanding metal parts of a washing machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. When it is necessary to perform shrinking and expanding processing on the metal parts of the washing machine, firstly, the tubular metal parts of the washing machine are slid down from the loading hopper (31), and the pushing cylinder (35) is started to push the pushing frame (34) to push the metal parts into the interior of the positioning frame (33) to complete the loading; S2, then starting the switching cylinder (311) to push the processing plate (37) to drive the expanding cone (38) and the shrinking sleeve (39) to move, completing the rapid switching between the expanding and shrinking processing, and then starting the sticking cylinder (310) to push the processing plate (37) toward the positioning frame (33), so that the expanding cone (38) or the shrinking sleeve (39) can be brought into contact with the metal fitting; S3. After the expanding cone (38) or the shrinking sleeve (39) contacts the metal accessory, the metal accessory will slide along the surface of the positioning frame (33), thereby pushing the pressure seat (318) to squeeze the hinge seat (315) to compress the spring (314), thereby driving the clamping rod (317) to move closer to the surface of the metal accessory, thereby stably clamping the metal accessory; S4, then starting the rotating motor (319) to drive the metal fittings on the fixed seat (313) and the clamping rod (317) to rotate synchronously, and cooperate with the fixed expanding cone (38) or shrinking sleeve (39) to enable the metal fittings to achieve all-round shrinking and expanding processing during relative movement; S5. After the shrinking or expanding process of one end of the metal fitting is completed, the abutting cylinder (310) is started to reset, and the extrusion and clamping of the metal fitting are released under the action of the elastic force of the spring (314). Then, the lifting cylinder (42) is started to push the lifting plate (43), thereby driving the clamping claw (412) to move downward synchronously; S6. When the clamping jaw (412) moves down to the position where the metal fitting is located, the two-way clamping cylinder (411) is started to drive the clamping jaw (412) to clamp the processed metal fitting, and then the reversing cylinder (48) is started to push the reversing rack (47) to move, thereby driving the reversing gear (46) and the rotating shaft (45) to rotate, thereby driving the rotating plate (49) and the metal fitting clamped thereunder to rotate, thereby changing the direction of the metal fitting; S7, then, start the bidirectional clamping cylinder (411) to release the clamping claw (412), and the metal fitting will fall into the interior of the positioning frame (33) again, and then start the abutting cylinder (310) and the switching cylinder (311) again, so that the other end of the metal fitting can be shrunken or expanded; S8. After the processing of both ends of the metal fittings is completed, the push cylinder (35) is started to push the push frame (34) upward, and the processed metal fittings are pushed out of the positioning frame (33) and dropped into the unloading hopper (36). At the same time, the metal fittings that slide down and are blocked on the surface of the baffle plate (32) can be automatically loaded, thereby realizing the cyclic operation of the entire processing process.

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