Stamping die for producing washing machine parts

By introducing a calibration mechanism driven by bidirectional screw and servo motor in the stamping mold, the sheet offset problem caused by long-term operation of the staff is solved, and high-precision stamping of the front cover of the washing machine is realized, and product pass rate is improved.

CN223250313UActive Publication Date: 2025-08-22YIWEI (TIANJIN) AUTOMOTIVE TECH CO LTD
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Patent Information

Application Number
CN202422451282.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-08-22
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

During the production process of the front cover of the washing machine, due to the long-term operation of the staff, the attention is reduced, and the sheet material is offset, which affects the dimensional accuracy and shape of the stamping parts, resulting in an increase in the product failure rate.

Method used

The stamping mold design is adopted, including a calibration mechanism of bidirectional screw, servo motor, movable arms and rubber pads. The servo motor drives the movable arms and rubber pads to get close to or away from each other, so as to achieve rapid calibration and positioning of the sheet to avoid sheet deviation.

Benefits of technology

It improves the product's pass rate, ensures the precise positioning of the sheet during the stamping process, improves the size and shape accuracy of the stamping parts, and reduces the unqualification rate.

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Abstract

The utility model discloses a stamping die for producing washing machine parts, and belongs to the technical field of washing machine machining parts, the stamping die comprises a stamping machine, an upper die installed on the stamping machine, a machining table arranged on the stamping machine and a lower die installed on the machining table, and the machining table is provided with a calibration mechanism; the calibration mechanism comprises two-way lead screws symmetrically installed on the machining table and movable arms arranged at the two ends of the two-way lead screws in a threaded and sleeving mode. The ends, away from the two-way lead screws, of the movable arms are fixedly connected with fixed rods. The bidirectional lead screws are symmetrically arranged on the machining table and matched with the servo motors, the positioning rods and the movable arms, after the servo motors are started, the symmetrically-distributed movable arms can be driven to drive the fixed rods, the connecting rods and the rubber cushion plates to be close to or away from one another, and after the movable arms move to the designated positions, sheet calibration is completed; compared with a traditional sheet feeding mode, calibration operation is faster, calibration operation can be continued for a long time, and the qualified rate of products is increased.
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Description

Technical Field

[0001] The present application relates to the technical field of washing machine parts processing, and specifically relates to a stamping die for producing washing machine parts. Background Art

[0002] A washing machine is an electrical appliance that uses electrical energy to generate mechanical action to wash clothes and clean them. It is divided into two categories according to its rated washing capacity: household and collective use. The front cover of the washing machine is a cover on the front of the washing machine, which is used to cover the internal components of the washing machine. The front cover of the washing machine needs to be stamped during production.

[0003] Usually, the front cover of a washing machine is processed by placing the metal sheet on the lower die of a stamping machine and using the upper die of the stamping machine to punch down to complete the production of the part. However, during the loading process, most of the workers place the sheet into the stamping position of the stamping machine based on their long-term experience. Due to long-term repetitive operations, their attention is reduced, resulting in the sheet being miscalibrated in subsequent processing, which directly affects the dimensional accuracy and shape of the stamped parts, resulting in an increase in the product rejection rate.

[0004] Therefore, the present application provides a stamping die for producing washing machine parts to solve the above problems. Utility Model Content

[0005] The present application provides a stamping die for producing washing machine parts, aiming to solve the problem in the prior art that in the production process of the front cover of the washing machine, the workers' attention is reduced during long hours of work, resulting in deviation in the sheet material feeding.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a stamping die for producing washing machine parts, comprising a stamping machine and an upper die mounted on the stamping machine, a processing table disposed on the stamping machine, and a lower die mounted on the processing table, wherein the processing table is provided with a calibration mechanism;

[0007] The calibration mechanism includes a bidirectional screw symmetrically installed on the processing table and a movable arm threadedly sleeved on both ends of the bidirectional screw, the movable arm being fixedly connected to a fixing rod at one end away from the bidirectional screw, the fixing rod being detachably connected to a connecting rod at one end away from the movable arm, a rubber pad being provided on the end of the connecting rod away from the fixed rod, the threaded surfaces at both ends of the bidirectional screw being symmetrical with each other, the movable arms threadedly sleeved on both ends of the bidirectional screw will approach or move away from each other when the bidirectional screw rotates, the positioning rod is installed on one side of the bidirectional screw through a fixing seat, and the positioning rod is movably inserted into the movable arm, and when the bidirectional screw drives the movable arm to move, the positioning rod provides a limit to the movable arm.

[0008] Preferably, positioning rods corresponding to the bidirectional screw rods are symmetrically arranged on the processing table, and a fixing seat is sleeved at the center of the positioning rods, and the fixing seat is fixedly connected to the processing table.

[0009] Preferably, a circular hole for movably fitting with the positioning rod is provided on the movable arm.

[0010] Preferably, the movable arm and the fixed rod are integrally formed.

[0011] Preferably, both ends of the bidirectional screw are provided with positioning plates, and the positioning plates are fixedly connected to the processing table. A servo motor is provided on the positioning plate close to one end of the punching machine, and the output end of the servo motor is fixedly connected to the bidirectional screw. Both ends of each bidirectional screw are provided with positioning plates, and are fixedly connected to the processing table through the positioning plates, which plays the role of installing the bidirectional screw on the processing table. The internal circuit connection of the servo motor is an existing technology, and the servo motor drives the bidirectional screw to rotate.

[0012] Preferably, a plurality of anti-slip blocks are provided on both sides of the lower mold, and a tilting block is installed on the processing table.

[0013] This stamping die is achieved by symmetrically setting bidirectional screws on the processing table, cooperating with a servo motor, a positioning rod and a movable arm. After the servo motor is started, it will drive the symmetrically distributed movable arms to move the fixed rods, connecting rods and rubber pads closer to or away from each other. When the symmetrically distributed rubber pads approach each other, the sheet located between the four anti-slip blocks will be squeezed. After the movable arm moves to the specified position, the sheet is calibrated. Compared with the traditional sheet loading method, the calibration operation is faster and the calibration operation can be continued for a long time, thereby improving the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a stamping die for producing washing machine parts;

[0015] Figure 2 It is a structural diagram of the processing table;

[0016] Figure 3 It is a schematic diagram of the structure to prevent the block from falling off;

[0017] Figure 4 It is a schematic structural diagram of the side section of the processing table;

[0018] Figure 5 It is a structural diagram of the cross-street section of the processing platform;

[0019] Figure 6 Schematic diagram of the structure of the movable arm.

[0020] In the picture:

[0021] 1. Punching machine;

[0022] 2. Upper mold;

[0023] 3. Lower mold;

[0024] 4. Processing table;

[0025] 5. Calibration agency;

[0026] 51. Positioning plate; 52. Bidirectional screw; 53. Fixed seat; 54. Positioning rod; 55. Movable arm; 56. Fixed rod; 57. Connecting rod; 58. Rubber pad; 59. Servo motor;

[0027] 6. Anti-blocking;

[0028] 7. Tilt block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] This embodiment provides a stamping die for producing washing machine parts, such as Figure 1-6 As shown, the stamping die includes a stamping machine 1 and an upper die 2 mounted on the stamping machine 1, a processing table 4 provided on the stamping machine 1, and a lower die 3 installed on the processing table 4, and a calibration mechanism 5 is provided on the processing table 4;

[0031] The calibration mechanism 5 includes a bidirectional screw 52 symmetrically installed on the processing table 4 and a movable arm 55 threadedly sleeved on both ends of the bidirectional screw 52. The end of the movable arm 55 away from the bidirectional screw 52 is fixedly connected to a fixed rod 56, and the end of the fixed rod 56 away from the movable arm 55 is detachably connected to a connecting rod 57. The end of the connecting rod 57 away from the fixed rod 56 is provided with a rubber pad 58. Positioning rods 54 corresponding to the bidirectional screw 52 are symmetrically arranged on the processing table 4. A fixed seat 53 is sleeved at the center of the positioning rod 54, and the fixed seat 53 is fixedly connected to the processing table 4.

[0032] Specifically, the threaded surfaces at both ends of the bidirectional screw rod 52 are symmetrical to each other, and the movable arms 55 threadedly sleeved at both ends of the bidirectional screw rod 52 will approach or move away from each other when the bidirectional screw rod 52 rotates. The positioning rod 54 is installed on one side of the bidirectional screw rod 52 through the fixed seat 53, and the positioning rod 54 is inserted through the movable arm 55. When the bidirectional screw rod 52 drives the movable arm 55 to move, the positioning rod 54 provides a limit to the movable arm 55 to prevent the movable arm 55 from rotating on its own. At the same time, it provides a certain stability to the movable arm 55 to prevent the movable arm 55 from moving with the fixed rod 56, the connecting rod 57 and the rubber pad 58 to move close to each other to achieve clamping calibration, which can prevent the sheet from being offset due to small vibrations. The rubber pad 58 is made of rubber.

[0033] The movable arm 55 is provided with a circular hole for movably fitting with the positioning rod 54 , and the movable arm 55 and the fixing rod 56 are integrally formed.

[0034] More specifically, the movable arm 55 and the fixing rod 56 are integrally formed to enhance the overall structural strength.

[0035] A positioning plate 51 is provided at both ends of the bidirectional screw rod 52 , and the positioning plate 51 is fixedly connected to the processing table 4 . A servo motor 59 is provided on the positioning plate 51 near one end of the punching machine 1 , and the output end of the servo motor 59 is fixedly connected to the bidirectional screw rod 52 .

[0036] It should be noted that each bidirectional screw rod 52 is provided with a positioning plate 51 at both ends, and is fixedly connected to the processing table 4 through the positioning plate 51, which serves to install the bidirectional screw rod 52 on the processing table 4. The internal circuit connection of the servo motor 59 is an existing technology, and the servo motor 59 drives the bidirectional screw rod 52 to rotate.

[0037] A plurality of anti-slip blocks 6 are provided on both sides of the lower mold 3 , and a tilting block 7 is installed on the processing table 4 .

[0038] It is worth mentioning that the anti-slip block 6 prevents the sheet from slipping, preventing the sheet from sliding to both sides when the upper mold 2 punches the sheet, and the tilting block 7 discharges the waste material after punching.

[0039] During use, first, the servo motor 59 is not started, and the fixed rods 56 on the front and rear sides of the processing table 4 are at the maximum distance away from the lower mold 3. The staff puts the sheet on the lower mold 3 and locates it between the four anti-slip blocks 6, starts the servo motor 59 to drive the bidirectional screw 52 to rotate, and the bidirectional screw 52 drives the symmetrically distributed movable arms 55 and the rubber pads 58 to approach the sheet until the rubber pads 58 contact the sheet. After the symmetrically distributed movable arms 55 approach each other and move to the specified position, the rubber pads 58 on the front and rear sides of the sheet are pushed to the center of the lower mold 3 and the calibration operation is completed. After the calibration operation is completed, the servo motor 59 is started again to move the symmetrically distributed fixed rods 56 away from each other, and the upper mold 2 on the punching machine 1 approaches the lower mold 3 and performs the stamping operation.

[0040] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A stamping die for producing washing machine parts, comprising a stamping machine (1), an upper die (2) mounted on the stamping machine (1), a processing table (4) disposed on the stamping machine (1), and a lower die (3) mounted on the processing table (4), wherein a calibration mechanism (5) is disposed on the processing table (4); Its characteristics are: The calibration mechanism (5) comprises a bidirectional screw rod (52) symmetrically mounted on the processing table (4) and a movable arm (55) threadedly sleeved on both ends of the bidirectional screw rod (52); one end of the movable arm (55) away from the bidirectional screw rod (52) is fixedly connected to a fixed rod (56); one end of the fixed rod (56) away from the movable arm (55) is detachably connected to a connecting rod (57); and one end of the connecting rod (57) away from the fixed rod (56) is provided with a rubber pad (58).

2. The stamping die for producing washing machine parts according to claim 1, characterized in that: Positioning rods (54) corresponding to the bidirectional screw rods (52) are symmetrically arranged on the processing table (4). A fixing seat (53) is sleeved at the center of the positioning rods (54). The fixing seat (53) is fixedly connected to the processing table (4).

3. The stamping die for producing washing machine parts according to claim 2, characterized in that: The movable arm (55) is provided with a circular hole for being movably sleeved with the positioning rod (54).

4. The stamping die for producing washing machine parts according to claim 3, characterized in that: The movable arm (55) and the fixed rod (56) are integrally formed.

5. The stamping die for producing washing machine parts according to claim 1, characterized in that: Both ends of the bidirectional screw rod (52) are provided with positioning plates (51), and the positioning plates (51) are fixedly connected to the processing table (4). A servo motor (59) is provided on the positioning plate (51) close to one end of the punching machine (1), and the output end of the servo motor (59) is fixedly connected to the bidirectional screw rod (52).

6. The stamping die for producing washing machine parts according to claim 1, characterized in that: A plurality of anti-slip blocks (6) are provided on both sides of the lower mold (3), and a tilting block (7) is installed on the processing table (4).