A taking-out manipulator for refrigerator drawer production process

By designing a buffer structure in the refrigerator drawer manufacturing process, the problem of clamping damage was solved, the defect rate and cost were reduced, and production efficiency and installation and maintenance speed were improved.

CN224575697UActive Publication Date: 2026-07-31QINGDAO JUNSHANG PLASTIC TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO JUNSHANG PLASTIC TECHNOLOGY CO LTD
Filing Date
2025-07-03
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In the current refrigerator drawer manufacturing process, the robotic arm lacks cushioning when gripping parts, which leads to drawer damage, increases the defect rate and production costs, and reduces efficiency.

Method used

A robotic arm for retrieving parts in the production process of refrigerator drawers was designed. It uses a gripping frame, gripping motor, rotating shaft, bearing, gripping plate, hollow column, buffer spring, buffer column and rubber pad to provide buffer for the gripping area and reduce the damage to the drawer caused by the gripping speed. It also achieves rapid installation and disassembly through internal insertion block, locking spring, locking arc block, connecting plug and robotic arm.

Benefits of technology

It reduces the damage to the drawer caused by the clamping speed, reduces the defect rate, lowers production costs, improves production efficiency, and speeds up the installation and maintenance of the robotic arm.

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Abstract

This utility model discloses a robotic arm for retrieving parts in the production process of refrigerator drawers, belonging to the field of refrigerator drawer manufacturing. It includes a gripping frame, with a gripping motor fixedly connected to the top of the gripping frame. The output shaft of the gripping motor is fixedly connected to a rotating shaft via a coupling. A bearing is fixedly connected to the outer wall of the rotating shaft, and a gripping plate is fixedly connected to the outer wall of the rotating shaft. A hollow column is fixedly connected to one side of the gripping plate, and a buffer spring is fixedly connected inside the hollow column. Through the gripping frame, gripping motor, rotating shaft, bearing, gripping plate, hollow column, buffer spring, buffer column, and rubber pad, a buffer is provided for the gripping area when gripping and holding the refrigerator drawer, reducing damage to the drawer caused by excessive gripping speed, reducing the production rate of defective products, lowering operating costs, and accelerating the efficiency of subsequent work.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerator drawer manufacturing technology, specifically a component-retrieving robot for refrigerator drawer manufacturing. Background Technology

[0002] The production process of refrigerator drawers involves key steps such as raw material selection, high-precision injection molding or thermoforming. Environmentally friendly engineering plastics or transparent materials are used, and mold design optimization ensures dimensional accuracy and structural strength. The process is completed through automated production lines, including molding, deburring, and punching. Defective products are then removed through strict quality inspection. Finally, the drawers undergo anti-deformation treatment and packaging. The entire process emphasizes the low-temperature resistance, sealing performance, and smooth and durable drawer slides of the materials to ensure a perfect match with the overall performance of the refrigerator. To adjust the position of the refrigerator drawers during production, a robotic arm for picking up parts is required in the refrigerator drawer production process.

[0003] An investigation revealed that patent CN111975806A discloses an automated object-retrieving robot, comprising a central frame with a connecting seat fixedly connected to its top. The connecting seat is fixedly connected to the end effector of a multi-axis robot. First piston rods are horizontally connected to both the front and rear sides of the central frame, with first clamping plates connected to the ends of the first piston rods. Air cushions are adhered to opposite sides of each clamping plate. Second piston rods are horizontally connected to both the left and right sides of the central frame, with second clamping plates connected to the ends of the second piston rods. The bottom of each second clamping plate has an opening, inside which several rollers are horizontally mounted. A fixed housing is fixedly mounted on one side of each second clamping plate, containing several driven gears that correspond one-to-one with the rollers and are connected in a transmission manner. This automated object-retrieving robot has a reasonable structure, novel design, and convenient operation, and can quickly and effectively pick up different items stably, thus facilitating its widespread use.

[0004] The aforementioned patent does not provide a very secure gripping mechanism for the product when used by the user. It does not provide cushioning for the gripping area when grabbing and holding the refrigerator drawer, and the drawer may be damaged due to the high speed during gripping. This increases the defect rate in the production process, raises the cost required in the work, and reduces the overall production efficiency.

[0005] Therefore, this utility model provides a robotic arm for picking up parts in the production process of refrigerator drawers to solve the above problems. Utility Model Content

[0006] This utility model provides a robotic arm for picking up parts in the production process of refrigerator drawers, aiming to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a part-retrieving robot for refrigerator drawer manufacturing process, comprising a gripping frame, a gripping motor fixedly connected to the top of the gripping frame, a rotating shaft fixedly connected to the output shaft of the gripping motor via a coupling, a bearing fixedly connected to the outer wall of the rotating shaft, a gripping plate fixedly connected to the outer wall of the rotating shaft, and a hollow column fixedly connected to one side of the gripping plate.

[0008] A buffer spring is fixedly connected inside the hollow column. One end of the buffer spring is fixedly connected to a buffer post, and one end of the buffer post is fixedly connected to a rubber pad. When gripping and holding the refrigerator drawer, the buffer can provide cushioning to the gripping area, reducing damage to the drawer caused by excessive gripping speed, reducing the production rate of defective products in the production process, reducing the cost of the work, and speeding up the efficiency of subsequent work.

[0009] As a preferred technical solution of this application, a steering motor is fixedly connected to one side of the gripping frame, and an outer protective frame is fixedly connected to one side of the steering motor.

[0010] As a preferred technical solution of this application, an inner insert block is fixedly connected to one side of the outer protective frame, and the length and height of the inner insert block are both smaller than the length and height of the outer protective frame.

[0011] As a preferred technical solution of this application, a locking spring is fixedly connected inside the inner insert block, and a locking arc block is fixedly connected to one end of the locking spring.

[0012] As a preferred technical solution of this application, a connector plug is fixedly connected to one side of the insert block, and a robotic arm is movably connected to one side of the connector plug.

[0013] As a preferred technical solution of this application, the outer wall of the rotating shaft is fixedly connected to the inside of the gripping plate, and there are two gripping plates and two rotating shafts.

[0014] As a preferred technical solution of this application, the buffer column is movably connected to the interior of the hollow column through a buffer spring, and the number of buffer columns, buffer springs and hollow columns are all four. Beneficial effects

[0015] This utility model provides a part-picking robot for refrigerator drawer manufacturing process. By setting up a gripping frame, gripping motor, rotating shaft, bearing, gripping plate, hollow column, buffer spring, buffer column and rubber pad, it can provide buffer for the gripping area when gripping and holding refrigerator drawers, reduce damage to drawers caused by excessive gripping speed, reduce the production rate of defective products in the production process, reduce the cost of work, and speed up the efficiency of subsequent work. This utility model provides a robotic arm for retrieving parts in the production process of refrigerator drawers. Through the setting of an inner insertion block, a locking spring, a locking arc block, a connecting plug, and a robotic arm, the robotic arm can be quickly installed or disassembled, which speeds up the installation and replacement of the robotic arm and facilitates rapid maintenance in the later stage. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a top sectional view of the structure of this utility model; Figure 4 This is a front sectional view of the structure of this utility model; Figure 5 This is the utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0017] In the picture: 1. Gripping frame; 2. Gripping motor; 3. Rotating shaft; 4. Bearing; 5. Gripping plate; 6. Hollow column; 7. Buffer spring; 8. Buffer column; 9. Rubber pad; 10. Steering motor; 11. Outer protective frame; 12. Inner insert block; 13. Engaging spring; 14. Engaging arc block; 15. Connecting plug; 16. Robotic arm. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 The present invention provides a technical solution: a part-retrieving robot for refrigerator drawer production process, including a gripping frame 1, a gripping motor 2 fixedly connected to the top of the gripping frame 1, a rotating shaft 3 fixedly connected to the output shaft of the gripping motor 2 through a coupling, a bearing 4 fixedly connected to the outer wall of the rotating shaft 3, a gripping plate 5 fixedly connected to the outer wall of the rotating shaft 3, and a hollow column 6 fixedly connected to one side of the gripping plate 5.

[0020] A buffer spring 7 is fixedly connected inside the hollow column 6. A buffer column 8 is fixedly connected to one end of the buffer spring 7. A rubber pad 9 is fixedly connected to one end of the buffer column 8. When gripping and holding the refrigerator drawer, the buffer can provide cushioning to the gripping area, reducing damage to the drawer caused by excessive gripping speed, reducing the production rate of defective products in the production process, reducing the cost of the work, and speeding up the efficiency of subsequent work.

[0021] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: a steering motor 10 is fixedly connected to one side of the gripping frame 1, and an outer protective frame 11 is fixedly connected to one side of the steering motor 10, which can adjust the steering of the product during or after gripping.

[0022] As a preferred technical solution of this application, an inner insert block 12 is fixedly connected to one side of the outer protective frame 11, and the length and height of the inner insert block 12 are both smaller than the length and height of the outer protective frame 11, which facilitates the insertion operation of the inner insert block 12.

[0023] A locking spring 13 is fixedly connected inside the inner insertion block 12. One end of the locking spring 13 is fixedly connected to a locking arc block 14, which facilitates the locking of the insertion block 12 and the robotic arm 16. A connecting plug 15 is fixedly connected to one side of the inner insertion block 12. The robotic arm 16 is movably connected to one side of the connecting plug 15, which facilitates the transmission of the robotic arm's working information.

[0024] The outer wall of the rotating shaft 3 is fixedly connected to the inside of the gripping plate 5, and there are two gripping plates 5 and two rotating shafts 3. The buffer column 8 is movably connected to the inside of the hollow column 6 through the buffer spring 7, and there are four buffer columns 8, four buffer springs 7 and four hollow columns 6, which can buffer the product when it is clamped.

[0025] like Figure 1-5 As shown, when a user needs to use a robotic arm for retrieving parts in a refrigerator drawer manufacturing process, if it is necessary to press to replace the gripping frame 1, pressing the engaging arc block 14 causes the engaging spring 13 to contract under pressure, thereby allowing the engaging arc block 14 to retract into the interior of the inner insert block 12. At this time, the insert block 12 and the gripping frame 1 are pulled out, and the engaging arc block of the new insert block 12 is aligned with the opening of the robotic arm 16 and pressed in. If it is necessary to grip the product, the steering motor 10 works, and the output shaft of the steering motor 10 rotates to adjust the gripping direction of the gripping frame 1 appropriately. When the product is located between the two gripping plates 5, the gripping motor 2 works, and the output shaft of the gripping motor 2 rotates to drive the rotating shaft 3 to rotate the gripping plate 5. When the rubber pad 9 contacts the product, the buffer column 8 slides into the interior of the hollow column 6, and the contraction of the buffer spring 7 can provide cushioning for the hollow column and the rubber pad 9.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A taking-out manipulator for a refrigerator drawer production process, comprising a gripping frame (1), characterized in that: The top of the gripping frame (1) is fixedly connected to a gripping motor (2), the output shaft of the gripping motor (2) is fixedly connected to a rotating shaft (3) via a coupling, a bearing (4) is fixedly connected to the outer wall of the rotating shaft (3), a gripping plate (5) is fixedly connected to the outer wall of the rotating shaft (3), and a hollow column (6) is fixedly connected to one side of the gripping plate (5). A buffer spring (7) is fixedly connected inside the hollow column (6), a buffer column (8) is fixedly connected to one end of the buffer spring (7), and a rubber pad (9) is fixedly connected to one end of the buffer column (8).

2. The mechanical hand for taking out the refrigerator drawer according to claim 1, characterized in that: A steering motor (10) is fixedly connected to one side of the gripping frame (1), and an outer protective frame (11) is fixedly connected to one side of the steering motor (10).

3. The mechanical hand for taking out the refrigerator drawer according to claim 2, characterized in that: An inner insert (12) is fixedly connected to one side of the outer protective frame (11), and the length and height of the inner insert (12) are both smaller than the length and height of the outer protective frame (11).

4. The mechanical hand for taking out the refrigerator drawer according to claim 3, characterized in that: The inner insert (12) is fixedly connected to a locking spring (13), and one end of the locking spring (13) is fixedly connected to a locking arc block (14).

5. The mechanical hand for taking out the refrigerator drawer according to claim 4, characterized in that: A connector plug (15) is fixedly connected to one side of the inner plug (12), and a robotic arm (16) is movably connected to one side of the connector plug (15).

6. The mechanical hand for taking out the refrigerator drawer according to claim 1, characterized in that: The outer wall of the rotating shaft (3) is fixedly connected to the inside of the gripping plate (5), and there are two gripping plates (5) and two rotating shafts (3).

7. The mechanical hand for taking out the refrigerator drawer according to claim 1, characterized in that: The buffer column (8) is connected to the interior of the hollow column (6) via a buffer spring (7), and there are four buffer columns (8), four buffer springs (7), and four hollow columns (6).