Multi-station bearing hot-pressing apparatus

Abstract

The application discloses a multi-station bearing hot-pressing device, relates to the technical field of washing machine manufacturing, and comprises two work stations for placing inner drums and outer drums, a heating assembly intersecting with the translation track of the outer drum, a translation pushing assembly, a transverse hot-pressing assembly and a gripper assembly. The heating assembly comprises a heating box, a pitch adjusting structure formed by the mutual combination of a translation part and a lifting part, the output end of the pitch adjusting structure is connected to the heating box, and the output end of the heating box is provided with a heating head through an L-shaped frame. The technical advantage of the application is that the translation pushing assembly is arranged to drive the outer drum to be automatically sent to a position to be heated, the heating assembly is provided with the pitch adjusting structure, the heating head is used for heating and expanding the bearing position of the outer drum, the transverse hot-pressing assembly and the gripper assembly are used for automatically clamping the inner drum, and the inner drum and the outer drum are automatically and vertically pressed and assembled, so that the hot-pressing process presents full-automatic flow operation. Through the pair of inner drum work stations and outer drum work stations, double-station hot-pressing of the washing machine drum is realized.

Description

Technical Field

[0001] This application relates to the field of washing machine manufacturing technology, and in particular to multi-station bearing hot pressing equipment. Background Technology

[0002] In the manufacturing of washing machines, their efficient and stable operation relies on the precise assembly of various key components. Among these, the assembly quality of the inner and outer drum bearings plays a decisive role in the overall performance of the washing machine. With in-depth research into the properties of metallic materials, hot-press assembly technology based on the thermal expansion and contraction characteristics of metals has emerged. This technology involves heating the bearing or related components before assembly, causing its aperture to expand, allowing for rapid and precise fitting into the corresponding shaft or bearing seat. After cooling and contraction, a tight fit is achieved. This process effectively overcomes the drawbacks of traditional assembly methods, greatly improving the fitting accuracy and stability between the bearing and the shaft or bearing seat, significantly reducing assembly clearance, and substantially improving the reliability of the connection.

[0003] Currently, a complete assembly line operation mode has not yet been established in the hot pressing assembly of the inner and outer drum bearings of washing machines. It mainly relies on manual operation or semi-automatic methods. This not only consumes a lot of manpower, but also takes a long time to assemble. When assembling the drum, it needs to be heated first, and then aligned and pressed. However, there are great difficulties in automating the connection between the heating and alignment pressing steps, making it difficult to achieve efficient automated flow, which greatly limits the improvement of production efficiency and the optimization of assembly process. Summary of the Invention

[0004] This device provides a multi-station bearing hot pressing equipment, the specific implementation method of which is as follows:

[0005] Multi-station bearing hot pressing equipment includes:

[0006] Two workstations for placing the inner and outer cylinders;

[0007] Heating components that intersect with the translational trajectory of the outer cylinder;

[0008] A translational pushing component used to push the outer cylinder toward the heating component;

[0009] The heating assembly includes a heating box and an adjustable structure composed of a translation part and a lifting part. The output end of the adjustable structure is connected to the heating box, and the output end of the heating box is equipped with a heating head through an L-shaped frame. The heating head is inserted into the outer cylinder from the top and heats the bearing.

[0010] The horizontal hot-pressing assembly and gripper assembly are used for hoisting the inner cylinder. The horizontal hot-pressing assembly vertically presses the fixed shaft at the bottom of the inner cylinder into the bearing to complete the automatic hot-pressing assembly.

[0011] Preferably, the adjustable structure includes a translation seat that is slidably connected to the frame via a third guide rail, a heating box that is slidably connected above the translation seat, and the two are driven by a cylinder.

[0012] Based on the above technical solutions, the outer cylinder can be automatically moved to the position to be heated by the translational pushing component; the heating component, relying on the adjustable distance structure, can cause the heating head to heat the bearing position of the outer cylinder, and use the principle of thermal expansion and contraction to make its inner diameter larger, thereby facilitating subsequent assembly; the transverse hot pressing component, together with the gripper assembly, realizes the automated clamping of the inner cylinder, and can automatically press the inner cylinder vertically into the heated and expanded outer cylinder, completing the efficient assembly of the inner and outer cylinders.

[0013] Preferably, the discharge conveyor belt is located between the two working positions of the inner cylinder and the outer cylinder, and the translation trajectories of the discharge conveyor belt and the outer cylinder are arranged in opposite directions, and the translation trajectory of the translation pushing component intersects with the discharge conveyor belt.

[0014] Preferably, the discharge conveyor belt includes a base, on which a pair of belts are arranged side by side, with a gap between the two belts, and the gap width is greater than the diameter of the fixed shaft.

[0015] Based on the above technical solution, the discharge conveyor belt is set at a 90-degree angle, and together with the transverse hot pressing component and the gripper assembly, it can automatically discharge the hot-pressed washing machine drum; at the same time, the specially reserved gaps between the belts provide space for the fixed shaft.

[0016] Preferably, it also includes a frame for installing the discharge conveyor belt, with a pair of inner cylinder working positions and outer cylinder working positions respectively arranged on both sides of the discharge conveyor belt, and each working position is equipped with a set of heating components, transverse hot pressing components and gripper assembly.

[0017] Based on the above technical solution, by setting up a pair of inner drum working positions and outer drum working positions, the two work together to greatly improve production efficiency and successfully realize dual-station hot pressing of the washing machine drum; the inner drum and outer drum can be hot pressed at their respective working positions at the same time, which significantly shortens the overall processing time compared with single-station operation, and provides a strong guarantee for efficient and stable production of washing machine drums.

[0018] Preferably, the gripper assembly includes a base, a two-way cylinder is installed below the base, and a locking block is connected to the end of the cylinder arm.

[0019] Preferably, a guide seat is provided below the base, and the snap-fit ​​block is slidably connected to the guide seat via a guide rod.

[0020] Preferably, the transverse hot pressing assembly includes a transverse frame, on which a translation component is slidably mounted horizontally, and a first motor driven by a belt is provided at the sliding drive point; the translation component is vertically mounted with a lifting component, and both are provided with a second motor driven by a belt at their sliding drive points.

[0021] Preferably, a first guide rail is provided between the transverse frame and the translation component, and a second guide rail is provided between the lifting component and the translation component.

[0022] Based on the above technical solution, the transverse hot pressing assembly is equipped with pulley structures in both the transverse and longitudinal directions. The longitudinal pulley structure provides vertical drive for the assembly, while the transverse pulley structure provides lateral drive. These two structures work together to control the movement of the transverse hot pressing assembly in different directions. The lifting component, in conjunction with the second motor, also generates a stable and powerful vertical pressing force, ensuring a tight fit between the inner and outer cylinders during the hot pressing process, meeting the stringent requirements of the production process for pressing force and precision. In summary, this application includes the following beneficial technical effects:

[0023] 1. In this utility model, the outer cylinder is automatically fed into the heating position by setting a translational pushing component, and the heating component realizes the heating expansion of the heating head at the bearing position of the outer cylinder by means of the adjusting structure; the inner cylinder is automatically clamped by means of the transverse hot pressing component and the gripper assembly, and the inner and outer cylinders are automatically pressed and assembled vertically, so that the hot pressing process is a fully automated assembly line operation.

[0024] 2. In this utility model, the discharge conveyor belt is set at a 90-degree angle, and the automatic discharge of the washing machine drum after hot pressing is achieved by means of the transverse hot pressing component and the gripper assembly, and the fixed shaft is accommodated by the interval between the belts.

[0025] 3. This utility model has a simple structure. By setting a pair of inner drum working positions and outer drum working positions, it realizes dual-position hot pressing of the washing machine drum. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a top view of the structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the transverse hot pressing assembly in this utility model;

[0029] Figure 4 This is a schematic diagram of the gripper assembly in this utility model;

[0030] Figure 5 This is a cross-sectional view of the gripper assembly and inner cylinder structure in this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the outer cylinder and heating assembly in this utility model;

[0032] Figure 7 This is a cross-sectional view of the discharge conveyor belt, inner cylinder, and outer cylinder structure in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Discharge conveyor belt; 2. Inner cylinder; 3. Outer cylinder; 4. Heating assembly; 5. Lateral hot pressing assembly; 6. Grip assembly; 7. Translational pushing assembly; 10. Frame; 11. Human-machine interface.

[0035] 101. Base; 102. Belt; 201. Fixed shaft; 301. Bearing; 401. Translation seat; 402. Third guide rail; 403. Cylinder; 404. Heating box; 405. L-shaped frame; 406. Heating head; 501. Horizontal frame; 502. First motor; 503. First guide rail; 504. Second guide rail; 505. Second motor; 506. Lifting component; 507. Translation component; 601. Seat body; 602. Guide seat; 603. Guide rod; 604. Snap-fit ​​block; 605. Cover body; 606. Two-way cylinder. Detailed Implementation

[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0037] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0038] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] This application discloses a multi-station bearing hot pressing device.

[0041] Example 1

[0042] Reference Figures 1 to 7This embodiment discloses a multi-station bearing hot pressing device, including two working positions for placing the inner cylinder 2 and the outer cylinder 3, a heating component 4 that intersects with the translational trajectory of the outer cylinder 3, a translational pushing component 7 for pushing the outer cylinder 3 toward one side of the heating component 4, a transverse hot pressing component 5 and a gripper assembly 6 for hoisting the inner cylinder 2, and a discharge conveyor belt 1 vertically arranged between the working positions of the inner cylinder 2 and the outer cylinder 3. In this structure, the transverse hot pressing component 5 vertically presses the fixed shaft 201 at the bottom of the inner cylinder 2 into the bearing 301 to complete the automatic hot pressing assembly.

[0043] The translational trajectories of the discharge conveyor belt 1 and the outer cylinder 3 are arranged at right angles in the horizontal direction. The translational trajectories of the translational push component 7 intersect with the discharge conveyor belt 1. In this structure, the discharge conveyor belt 1 includes a base 101, and a pair of belts 102 are arranged side by side on its inner side. There is a gap between the two belts 102, and the gap width is greater than the diameter of the fixed shaft 201.

[0044] The heating assembly 4 includes a heating box 404 and an adjustable structure composed of a translation part and a lifting part. The output end of the adjustable structure is connected to the heating box 404, and the output end of the heating box 404 is equipped with a heating head 406 through an L-shaped frame 405. The heating head 406 is inserted into the outer cylinder 3 from the top and heats the bearing 301. In this structure, the adjustable structure includes a translation seat 401 that is slidably connected to the frame 10 through a third guide rail 402. The heating box 404 is slidably connected above the translation seat 401, and the two are driven by a cylinder 403.

[0045] The gripper assembly 6 includes a base 601, a two-way cylinder 606 is installed below the base 601, and a locking block 604 is connected to the end of the cylinder arm. In this structure, a guide seat 602 is also provided below the base 601, and the locking block 604 is slidably connected to the guide seat 602 through the guide rod 603.

[0046] The transverse hot pressing assembly 5 includes a transverse frame 501, a translation component 507 is horizontally slidably mounted on the transverse frame 501, and a first motor 502 driven by a belt is provided at the sliding drive point. A lifting component 506 is vertically slidably mounted on the translation component 507, and a second motor 505 driven by a belt is provided at the sliding drive point of both. In this structure, a first guide rail 503 is provided between the transverse frame 501 and the translation component 507, and a second guide rail 504 is provided between the lifting component 506 and the translation component 507.

[0047] The specific implementation process is as follows: the inner cylinder 2 and the outer cylinder 3 are placed in the inner cylinder 2 working position and the outer cylinder 3 working position on both sides respectively; the translation pushing component 7 pushes the outer cylinder 3 into the position to be heated, the adjusting structure pushes the heating box 404 to the position to be heated, and the heating head 406 descends and acts on the bearing 301 position of the outer cylinder 3.

[0048] The transverse hot pressing assembly 5 drives the gripper assembly 6 to fall and clamp the inner cylinder 2. The transverse hot pressing assembly 5 moves the inner cylinder 2 directly above the outer cylinder 3 and lowers the height to press the fixed shaft 201 vertically into the bearing 301, completing the hot pressing forming. The inner cylinder 2 and outer cylinder 3 after hot pressing are sent into the discharge conveyor belt 1 by the transverse hot pressing assembly 5 and the gripper assembly 6 and automatically transported to the outside.

[0049] Example 2

[0050] Reference Figures 1 to 2 Based on Embodiment 1, this embodiment also discloses a multi-station bearing hot pressing equipment, which also includes a controller and a frame 10 for installing the discharge conveyor belt 1. A pair of inner cylinder 2 working positions and outer cylinder 3 working positions are respectively arranged on both sides of the discharge conveyor belt 1, and each working position is equipped with a set of heating components 4, transverse hot pressing components 5 and gripper assembly 6.

[0051] The controller is electrically connected to the human-machine interface 11, which is mounted on the frame 10. The controller is electrically connected to the discharge conveyor belt 1, the heating component 4, the transverse hot pressing component 5, and the gripper assembly 6. Detection probes or proximity switches for detecting whether the material has been placed are installed at the working positions of the inner cylinder 2 and the outer cylinder 3.

[0052] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A multi-station bearing hot pressing device, characterized in that, include: Two work positions for placing the inner cylinder (2) and the outer cylinder (3); Heating assembly (4) that intersects with the translational trajectory of the outer cylinder (3); Translational pushing component (7) for pushing the outer cylinder (3) toward the heating component (4); The heating assembly (4) includes a heating box (404) and an adjustable structure composed of a translation part and a lifting part. The output end of the adjustable structure is connected to the heating box (404), and a heating head (406) is installed on the output end of the heating box (404) through an L-shaped frame (405). The heating head (406) is inserted into the outer cylinder (3) from the top and heats the bearing (301). The transverse hot pressing assembly (5) and the gripper assembly (6) are used to hoist the inner cylinder (2). The transverse hot pressing assembly (5) presses the fixed shaft (201) at the bottom of the inner cylinder (2) vertically into the bearing (301) to complete the automatic hot pressing assembly.

2. The multi-station bearing hot pressing equipment according to claim 1, characterized in that, A discharge conveyor belt (1) is provided between the two working positions of the inner cylinder (2) and the outer cylinder (3), and the translation trajectories of the discharge conveyor belt (1) and the outer cylinder (3) are arranged in opposite directions. The translation trajectory of the translation pushing component (7) intersects with the discharge conveyor belt (1).

3. The multi-station bearing hot pressing equipment according to claim 2, characterized in that, It also includes a frame (10) for mounting the discharge conveyor belt (1), and a pair of inner cylinder (2) working positions and outer cylinder (3) working positions are respectively arranged on both sides of the discharge conveyor belt (1), and each working position is equipped with a set of heating assembly (4), transverse hot pressing assembly (5) and gripper assembly (6).

4. The multi-station bearing hot pressing equipment according to claim 3, characterized in that, The adjustable structure includes a translation seat (401) slidably connected to the frame (10) via a third guide rail (402), and the heating box (404) is slidably connected above the translation seat (401), and the two are driven by a cylinder (403).

5. The multi-station bearing hot pressing equipment according to claim 1, characterized in that, The gripper assembly (6) includes a base (601), under which a two-way cylinder (606) is installed, and each of its arm ends is connected to a locking block (604).

6. The multi-station bearing hot pressing equipment according to claim 5, characterized in that, A guide seat (602) is also provided below the seat body (601), and the snap-fit ​​block (604) is slidably connected to the guide seat (602) through the guide rod (603).

7. The multi-station bearing hot pressing equipment according to claim 1, characterized in that, The transverse hot pressing assembly (5) includes a transverse frame (501), a translation component (507) is horizontally slidably provided on the transverse frame (501), and a belt-driven first motor (502) is provided at the sliding drive point; The translation member (507) is vertically slidably provided with a lifting member (506), and a second motor (505) driven by a belt is provided at the sliding drive point of the two.

8. The multi-station bearing hot pressing equipment according to claim 7, characterized in that, A first guide rail (503) is provided between the transverse frame (501) and the translation component (507), and a second guide rail (504) is provided between the lifting component (506) and the translation component (507).

9. The multi-station bearing hot pressing equipment according to claim 2, characterized in that, The discharge conveyor belt (1) includes a base (101) with a pair of belts (102) arranged side by side on its inner side. There is a gap between the two belts (102), and the gap width is greater than the diameter of the fixed shaft (201).

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