Stacking tool for heat treatment of bearing steel balls

Abstract

The stacking tool for heat treatment of the bearing steel balls comprises a main material disc and an auxiliary material disc, the back face of the main material disc is fixedly connected with a connecting box, the inner wall of the connecting box is rotationally connected with a transmission lead screw through a bearing, the top end of the transmission lead screw is fixedly connected with an adjusting handle, and the adjusting handle is fixedly connected with a bearing. And the outer surface of the transmission lead screw is in threaded connection with a transmission screw sleeve, the outer surface of the transmission screw sleeve is fixedly connected with two square moving plates, and the inner wall of the connecting box is fixedly connected with two supporting sliding rods. According to the device, an adjusting handle is rotated to drive a transmission screw rod to rotate, so that a transmission screw sleeve moves up and down along the screw rod, and then a square movable plate, a square stand column and a connecting frame are driven to move up and down, the distance between an auxiliary material disc and a main material disc is flexibly adjusted, and the proper distance can be adjusted according to the requirements of different steel ball heat treatment processes for the stacking distance; the steel balls are uniformly heated during heat treatment, and the overall heat treatment quality of the steel balls is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel ball processing, and in particular to a stacking fixture for heat treatment of bearing steel balls. Background Technology

[0002] Bearing steel balls are parts used in industrial production and are part of bearings. Steel balls are classified according to the processing materials, such as bearing steel balls, stainless steel balls, carbon steel balls, copper bearing steel balls, and alloy steel balls. Among them, bearing steel balls are important basic components in industry. Alloy steel balls are spherical iron alloy wear-resistant bodies made of carbon, chromium, manganese, molybdenum, and other main added metal elements, and produced through forging, spinning, rolling, and casting. During the heat treatment (quenching and tempering) process of bearing steel balls, the stacking tooling directly affects the heating uniformity, deformation control, and surface quality of the steel balls. Reasonable tooling design can effectively improve product quality.

[0003] Common stacking fixtures include trays, roller fixtures, and basket fixtures. In the bearing manufacturing process, the heat treatment of steel balls is one of the key processes, directly affecting the hardness, wear resistance, toughness, and other properties of the steel balls. During the heat treatment process, the stacking method of the steel balls has a significant impact on its heat treatment effect. However, when using trays for layered stacking, the distance between adjacent trays is relatively limited, and the spacing between adjacent trays is difficult to adjust according to the requirements of the steel ball heat treatment process. This results in uneven heating of the steel balls during heat treatment, affecting the overall heat treatment quality of the steel balls. To address this issue, we propose a stacking fixture for the heat treatment of bearing steel balls. Utility Model Content

[0004] The purpose of this invention is to provide a stacking fixture for heat treatment of bearing steel balls, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stacking fixture for heat treatment of bearing steel balls includes a main material tray and a secondary material tray. A connecting box is fixedly connected to the back of the main material tray. A transmission screw is rotatably connected to the inner wall of the connecting box via a bearing. An adjusting handle is fixedly connected to the top of the transmission screw. A transmission sleeve is threadedly connected to the outer surface of the transmission screw. Two square movable plates are fixedly connected to the outer surface of the transmission sleeve. Two support slide rods are fixedly connected to the inner wall of the connecting box. Each square movable plate is slidably connected to a support slide rod. A square column is fixedly connected to the upper surface of each square movable plate. The tops of the two square columns penetrate the connecting box and extend to the top of the connecting box. A connecting frame is fixedly connected to the top of the two square columns. Two sliding rails are fixedly connected to the upper surface of the connecting frame. Two long sliding strips adapted to the sliding rails are fixedly connected to the bottom surface of the secondary material tray. A locking component is fixedly installed on the outer surface of the connecting frame.

[0007] In a further embodiment, positioning trays are fixedly connected to the inner walls of both the auxiliary material tray and the main material tray, protective pads are provided inside both the auxiliary material tray and the main material tray, and a pull rod is fixedly connected to the outer surface of the auxiliary material tray.

[0008] In a further embodiment, the locking component includes two fixed sleeves fixedly installed on the outer surface of the connecting frame and a slotted plate fixedly installed on the outer surface of the auxiliary material tray. Each fixed sleeve is provided with a fastening screw inside, and each fastening screw is provided with a locking nut on its outer surface.

[0009] In a further embodiment, the bottom surface of the main material tray is fixedly connected with multiple support feet, and the outer surface of the connecting box is provided with an opening adapted to the square column.

[0010] In a further embodiment, a limiting plate is fixedly connected to the upper surface of the main material tray, and a square baffle is fixedly connected to the outer surface of the connecting frame, with the square baffle located above the limiting plate.

[0011] In a further embodiment, two fixed cylinders are fixedly connected to the outer surface of the main material tray, and a sliding column is slidably connected inside each fixed cylinder. The top end of each sliding column is fixedly connected to the bottom surface of the connecting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device rotates the adjusting handle to drive the transmission screw, causing the transmission sleeve to move up and down along the screw. This, in turn, moves the square moving plate, square column, and connecting frame up and down, enabling flexible adjustment of the distance between the auxiliary material tray and the main material tray. It can adjust the stacking distance to a suitable level according to the requirements of different steel ball heat treatment processes, ensuring uniform heating of the steel balls during heat treatment and improving the overall heat treatment quality. The positioning tray and protective pad effectively protect the steel balls, preventing them from being impacted or worn during stacking and heat treatment. Attached Figure Description

[0014] Figure 1 A frontal perspective three-dimensional schematic diagram of a stacking fixture for heat treatment of bearing steel balls;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the main material tray and the auxiliary material tray in the stacking fixture for heat treatment of bearing steel balls.

[0016] Figure 3 This is a side view of the main and auxiliary material trays in the stacking fixture for heat treatment of bearing steel balls.

[0017] Figure 4 This is a rear sectional view of the connecting box in the stacking fixture for heat treatment of bearing steel balls;

[0018] Figure 5 This is a top view of the main and auxiliary material trays in the stacking fixture for heat treatment of bearing steel balls.

[0019] In the diagram: 1. Main material tray; 2. Support foot; 3. Secondary material tray; 4. Pull rod; 5. Long slide bar; 6. Locking component; 601. Fixed sleeve; 602. Fastening screw; 603. Locking nut; 604. With opening plate; 7. Connecting box; 8. Fixed cylinder; 9. Sliding column; 10. Positioning tray; 11. Protective pad; 12. Transmission screw; 13. Adjusting handle; 14. Transmission screw sleeve; 15. Square moving plate; 16. Support slide bar; 17. Square column; 18. Connecting frame; 19. Sliding rail; 20. Square baffle; 21. Limiting plate. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figures 1-5 In this utility model, a stacking fixture for heat treatment of bearing steel balls includes a main material tray 1 and a secondary material tray 3. A connecting box 7 is fixedly connected to the back of the main material tray 1. A transmission screw 12 is rotatably connected to the inner wall of the connecting box 7 via a bearing. An adjusting handle 13 is fixedly connected to the top of the transmission screw 12. A transmission sleeve 14 is threadedly connected to the outer surface of the transmission screw 12. Two square movable plates 15 are fixedly connected to the outer surface of the transmission sleeve 14. Two supporting slide rods 16 are fixedly connected to the inner wall of the connecting box 7. Each square movable plate 15 is slidably connected to the supporting slide rod 16. A square column 17 is fixedly connected to the upper surface of each square movable plate 15. The tops of the two square columns 17 penetrate the connecting box 7 and extend to the top of the connecting box 7. A connecting frame 18 is fixedly connected to the top of column 17. Two sliding rails 19 are fixedly connected to the upper surface of the connecting frame 18. Two long sliding strips 5 adapted to the sliding rails 19 are fixedly connected to the bottom surface of the auxiliary material tray 3. A locking component 6 is fixedly installed on the outer surface of the connecting frame 18. Positioning trays 10 are fixedly connected to the inner walls of both the auxiliary material tray 3 and the main material tray 1. Protective pads 11 are provided inside both the auxiliary material tray 3 and the main material tray 1. A pull rod 4 is fixedly connected to the outer surface of the auxiliary material tray 3. The positioning tray 10 adopts a grid structure. The size of the grid is designed according to the diameter of the steel ball. Generally, the grid aperture is 1-2mm larger than the diameter of the steel ball, which can ensure that the steel ball is stably placed in the grid and that the heat treatment medium can fully contact the steel ball. To ensure uniform heating of the steel balls, the distance between the auxiliary material tray 3 and the main material tray 1 is adjusted via components such as the transmission screw 12, transmission sleeve 14, and square movable plate 15. The sliding rail 19 and long slide bar 5 facilitate the installation and sliding of the auxiliary material tray 3, while the locking component 6 is used to fix the auxiliary material tray 3, providing a basic guarantee for the proper stacking and heat treatment of the steel balls. Example: When steel balls requiring a larger spacing for heat treatment need to be stacked, the operator rotates the adjusting handle 13, which rotates the transmission screw 12 accordingly. The transmission sleeve 14 moves upward on the screw, causing the square movable plate 15, square column 17, and connecting frame 18 to rise. The auxiliary material tray 3 slides on the sliding rail 19 via the long slide bar 5. After the connecting frame 18 rises to the appropriate height, the locking component 6 is used to fix the auxiliary material tray. 3. Fixing the main tray 1 and the auxiliary tray 3 to adjust the distance between them, meeting the heat treatment process requirements of the steel balls. The positioning tray 10 can position the steel balls, making them neatly arranged in the tray for easy stacking and management. The protective pad 11 can prevent the steel balls from directly contacting the tray and causing wear and scratches, protecting the surface quality of the steel balls. The pull rod 4 facilitates the operator to move the auxiliary tray 3, improving work efficiency. Example: When placing the steel balls into the auxiliary tray 3, the steel balls are placed on the positioning tray 10 and neatly arranged. The protective pad 11 covers the surface of the positioning tray 10 to avoid hard contact between the steel balls and the tray. The protective pad 11 can be made of ceramic fiber aluminum silicate gasket, which can maintain good performance at high temperatures above 1000℃.

[0024] The locking component 6 includes two fixed sleeves 601 fixedly installed on the outer surface of the connecting frame 18 and a slotted plate 604 fixedly installed on the outer surface of the auxiliary material tray 3. Each fixed sleeve 601 has a fastening screw 602 inside, and each fastening screw 602 has a locking nut 603 on its outer surface. The fastening screw 602 and the locking nut 603 of the locking component 6 cooperate to firmly fix the auxiliary material tray 3 to the connecting frame 18, preventing the auxiliary material tray 3 from collapsing due to vibration or other reasons during the heat treatment process. The displacement ensures the stability of the steel ball stacking position and guarantees the heat treatment effect. Example: After the auxiliary material tray 3 is installed on the sliding rail 19 of the connecting frame 18 through the long slide bar 5, the fastening screw 602 is passed through the fixed sleeve 601 and the opening plate 604, and then the locking nut 603 is tightened so that the auxiliary material tray 3 is firmly fixed on the connecting frame 18. In the subsequent heat treatment process of the steel balls, even if the equipment vibrates, the auxiliary material tray 3 will not move, ensuring that the steel balls receive heat treatment in a stable position.

[0025] The bottom surface of the main material tray 1 is fixedly connected with multiple support feet 2. The outer surface of the connecting box 7 has an opening that matches the square column 17. The support feet 2 increase the contact area between the main material tray 1 and the ground, improving the overall stability of the tooling and preventing the tooling from tilting or collapsing during the stacking of steel balls and heat treatment. The opening on the connecting box 7 facilitates the up and down movement of the square column 17, ensuring the normal realization of the spacing adjustment function. The upper surface of the main material tray 1 is fixedly connected with a limiting plate 21, and the outer surface of the connecting frame 18 is fixedly connected with a square baffle 20, which is located above the limiting plate 21. The limiting plate 21 and the square baffle 20 play a limiting role, restricting the movement of the auxiliary material tray 3 in the horizontal and vertical directions. The movement range is controlled to prevent excessive movement of the auxiliary material tray 3, ensuring accurate relative positioning between the auxiliary material tray 3 and the main material tray 1, ensuring neat stacking of steel balls, and enhancing the stability of the tooling structure. Two fixed cylinders 8 are fixedly connected to the outer surface of the main material tray 1. Each fixed cylinder 8 has a sliding column 9 slidably connected inside. The top of each sliding column 9 is fixedly connected to the bottom surface of the connecting frame 18. When adjusting the height of the auxiliary material tray 3, the connecting frame 18 drives the sliding column 9 to slide up and down inside the fixed cylinder 8. The fixed cylinder 8 provides stable support and guidance for the sliding column 9, so that the connecting frame 18 will not shift or shake during the rising or falling process, ensuring the accuracy of the steel ball stacking spacing and meeting the requirements of the heat treatment process.

[0026] The working principle of this utility model is as follows:

[0027] In use, the transmission screw 12 can be rotated by adjusting the handle 13 according to the stacking spacing requirements. Under the action of the thread, the square moving plate 15 can be moved up and down along the support slide rod 16. The movement of the square moving plate 15 can move the two square columns 17 and the two connecting frames 18 up and down, thereby adjusting the connecting frames 18 and the sliding rail 19 to a suitable height. Then, the bearing steel column is placed on the positioning tray 10 in the main material tray 1 and the auxiliary material tray 3. After placement, the long slide bar 5 on the auxiliary material tray 3 can be slid into the sliding rail 19 to load the auxiliary material tray 3 above the main material tray 1. Then, the fastening screw 602 is inserted into the fixed sleeve 601 and the slotted plate 604 in sequence, and then locked by the locking nut 603 to realize the connection and assembly of the sliding rail 19 and the auxiliary material tray 3. Then, the steel balls can be stacked and subsequent heat treatment operations can be carried out to ensure the stability after stacking.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stacking fixture for heat treatment of bearing steel balls, characterized in that: The system includes a main material tray (1) and a secondary material tray (3). A connecting box (7) is fixedly connected to the back of the main material tray (1). A transmission screw (12) is rotatably connected to the inner wall of the connecting box (7) via a bearing. An adjusting handle (13) is fixedly connected to the top of the transmission screw (12). A transmission sleeve (14) is threadedly connected to the outer surface of the transmission screw (12). Two square movable plates (15) are fixedly connected to the outer surface of the transmission sleeve (14). Two support slide rods (16) are fixedly connected to the inner wall of the connecting box (7). Each square movable plate (15) is connected to a support slide rod. The rod (16) is slidably connected, and a square column (17) is fixedly connected to the upper surface of each of the square moving plates (15). The tops of the two square columns (17) pass through the connecting box (7) and extend to the top of the connecting box (7). The tops of the two square columns (17) are fixedly connected to a connecting frame (18). Two sliding rails (19) are fixedly connected to the upper surface of the connecting frame (18). Two long sliding strips (5) that are adapted to the sliding rails (19) are fixedly connected to the bottom surface of the auxiliary material tray (3). A locking component (6) is fixedly installed on the outer surface of the connecting frame (18).

2. The stacking fixture for heat treatment of bearing steel balls according to claim 1, characterized in that: The inner wall of the auxiliary material tray (3) and the inner wall of the main material tray (1) are both fixedly connected to a positioning tray (10). The interior of the auxiliary material tray (3) and the interior of the main material tray (1) are both provided with protective pads (11). The outer surface of the auxiliary material tray (3) is fixedly connected to a pull rod (4).

3. The stacking fixture for heat treatment of bearing steel balls according to claim 1, characterized in that: The locking component (6) includes two fixed sleeves (601) fixedly installed on the outer surface of the connecting frame (18) and a slotted plate (604) fixedly installed on the outer surface of the auxiliary material tray (3). Each fixed sleeve (601) is provided with a fastening screw (602) inside, and each fastening screw (602) is provided with a locking nut (603) on its outer surface.

4. The stacking fixture for heat treatment of bearing steel balls according to claim 1, characterized in that: The bottom surface of the main material tray (1) is fixedly connected with multiple support feet (2), and the outer surface of the connecting box (7) is provided with an opening that is compatible with the square column (17).

5. The stacking fixture for heat treatment of bearing steel balls according to claim 1, characterized in that: A limiting plate (21) is fixedly connected to the upper surface of the main material tray (1), and a square baffle (20) is fixedly connected to the outer surface of the connecting frame (18), with the square baffle (20) located above the limiting plate (21).

6. The stacking fixture for heat treatment of bearing steel balls according to claim 1, characterized in that: Two fixed cylinders (8) are fixedly connected to the outer surface of the main material tray (1). Each fixed cylinder (8) has a sliding column (9) slidably connected inside. The top of each sliding column (9) is fixedly connected to the bottom surface of the connecting frame (18).

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