Blueing jig for small plate parts

Abstract

The utility model belongs to the field of surface treatment frock, propose a kind of plate small part bluing frock, including the drum of mesh, the end of drum is provided with chain type drive mechanism, at least one drum cover is provided on the drum, the side of drum cover is provided with the hinge connected with drum, the other side of drum cover is provided with bolt subassembly, the support end of chain type drive mechanism is provided with bearing seat, the inside of bearing seat is provided with deep groove ball bearing, bearing seat is set on support frame, drum is located in the inboard of support frame, the top of support frame is provided with the hook of V type, the side of support frame is provided with the rocker arm of detachable connection with chain type drive mechanism. The utility model design is reasonable, simple structure, is favorable for reducing worker's intensity of labour and production cost, and is favorable for guaranteeing that bluing part quality is uniform, is suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the field of surface treatment tooling, and in particular relates to a bluing tooling for small plate-type parts. Background Technology

[0002] Bluing is a surface treatment process. The main process involves placing clean steel parts in a concentrated solution of alkali and oxidant and heating them. This causes the surface to be slightly corroded, releasing iron ions. The iron ions then react with the alkali and oxidant to form sodium ferrous oxide and sodium ferrite. The sodium ferrite and sodium ferrous oxide then react to form a uniform, dense, and magnetic iron oxide film.

[0003] Currently, due to the use of frame-type tooling for many small sheet metal parts, the bluing effect is very poor because of the close contact between the parts during the bluing process. Repeated bluing will also lead to a significant increase in costs, and the final surface color of the product will be inconsistent, affecting the quality of the product.

[0004] Existing patent CN222758365U discloses a barrel plating device for surface treatment of corrosion-resistant fasteners. This device can be used for surface treatment of parts, but the problem is that the bluing process requires the parts to be placed in the barrel in advance, and then the barrel and the parts are placed together in the treatment medium. This device is not easy to transfer, which affects the efficiency of picking up and putting down parts. Utility Model Content

[0005] This utility model addresses the technical problems existing in the above-mentioned bluing process tooling by proposing a bluing tooling for small plate parts that is reasonably designed, simple in structure, conducive to reducing the labor intensity and production cost of workers, and conducive to ensuring the uniformity of the quality of blued parts.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The bluing fixture for small plate parts provided by this utility model includes a roller with mesh, a chain drive mechanism at the end of the roller, at least one cover on the roller, a hinge connected to the roller on one side of the cover, a pin assembly on the other side of the cover, a bearing seat at the supporting end of the chain drive mechanism, a deep groove ball bearing inside the bearing seat, the bearing seat on a support frame, the roller located inside the support frame, a V-shaped hook above the support frame, and a rocker arm detachably connected to the chain drive mechanism on one side of the support frame.

[0007] Preferably, the chain drive mechanism includes a large sprocket coaxially connected to the roller, a small sprocket located above the large sprocket on the drive side of the large sprocket, the large sprocket and the small sprocket being connected by chain drive, a driven shaft and a driving shaft respectively located at the center of the large sprocket and the small sprocket, one end of the driving shaft being threaded, and one end of the rocker arm being a connecting hole that mates with the driving shaft.

[0008] Preferably, the side of the support frame is provided with a lifting port for the bearing seat and the drive shaft to move up and down, and the bearing seat is provided with bolts and nuts that are connected to the support frame.

[0009] Preferably, the driven shaft is provided with positioning sleeves near both ends.

[0010] Preferably, the support frame includes a pair of side plates, with a plurality of steel bars distributed near the bottom between the side plates, and angle irons distributed near the top between the side plates. The chain drive mechanism is disposed between the side plates, and the bearing seat and positioning sleeve are both disposed on the outer side of the side plates.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] This utility model provides a bluing fixture for small plate-shaped parts. It features an openable cover on the drum surface for easy handling of parts, and a support frame and hooks for convenient centralized transfer, particularly for removing the fixture from the bluing medium. The use of a rocker arm not only drives a chain transmission mechanism to control the drum, but the rocker arm can also be quickly disassembled, ensuring space efficiency in non-processing stages. This fixture is rationally designed, simple in structure, reduces labor intensity and production costs, and ensures consistent quality of blued parts, making it suitable for large-scale deployment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the bluing fixture for small plate-type parts provided in the embodiment;

[0015] Figure 2 A schematic diagram of the perforated side of the roller provided for an embodiment;

[0016] Figure 3 A cross-sectional view of the positioning sleeve provided in the embodiment;

[0017] In the above figures, 1. Roller; 2. Chain drive mechanism; 21. Large sprocket; 22. Small sprocket; 23. Chain; 24. Driven shaft; 25. Drive shaft; 3. Cylinder cover; 4. Hinge; 5. Pin assembly; 6. Bearing housing; 7. Deep groove ball bearing; 8. Support frame; 81. Side plate; 82. Reinforcing bar; 83. Angle iron; 9. Hook; 10. Rocker arm; 101. Connecting hole; 11. Bolt; 12. Nut; 13. Positioning sleeve. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Examples, such as Figure 1 , Figure 2 and Figure 3 As shown, the bluing fixture for small plate parts provided by this utility model includes a roller 1 with mesh, a chain drive mechanism 2 at the end of the roller 1, at least one cover 3 on the roller 1, a hinge 4 connected to the roller 1 on one side of the cover 3, and a pin assembly 5 on the other side of the cover 3. The pin assembly 5 includes a tubular component fixed to the roller and another tubular component fixed to the cover. A pin can be inserted into the center position of the tubular component. A bearing seat 6 is provided at the supporting end of the chain drive mechanism 2. A deep groove ball bearing 7 is provided inside the bearing seat 6. The bearing seat 6 is set on a support frame 8. The roller 1 is located inside the support frame 8. A V-shaped hook 9 is provided above the support frame 8. A rocker arm 10 detachably connected to the chain drive mechanism 2 is provided on one side of the support frame 8.

[0021] Specifically, by opening the pin assembly 5 and flipping the cylinder cover 3, the small plate-like parts to be processed can be placed into the roller 1. The support frame 8, roller 1, and the small plate-like parts to be processed can then be placed into the bluing treatment medium. The rocker arm 10 can be quickly connected to the power input end of the chain drive mechanism 2. Through manual control, the roller 1 can be driven to rotate at a uniform speed in the bluing treatment medium, thereby ensuring uniform contact between the small plate-like parts and the bluing treatment medium, resulting in a relatively uniform surface structure. The hook 9 serves as a suspension structure above the bluing treatment medium and also as a hoisting node for centralized transfer of the device, facilitating centralized transfer, especially for removing and placing the device from the bluing treatment medium. The rocker arm 10 can also be quickly disassembled, allowing it to be removed during non-processing stages, which helps maintain the space efficiency of the device and improves its practicality and utilization in the actual workshop environment. Therefore, this device is reasonably designed, has a simple structure, helps reduce the labor intensity and production costs of workers, and helps ensure the uniformity of the quality of the blued parts.

[0022] To improve the practicality of the chain drive mechanism 2, the chain drive mechanism 2 provided by this utility model includes a large sprocket 21 coaxially connected to the drum 1. A small sprocket 22 is arranged on the transmission side of the large sprocket 21 and located above it. The large sprocket 21 and the small sprocket 22 are connected by a chain 23. A driven shaft 24 and a driving shaft 25 are respectively arranged at the center of the large sprocket 21 and the small sprocket 22. One end of the driving shaft 25 is threaded, and one end of the rocker arm 10 is provided with a connecting hole 101 that mates with the driving shaft 25. The driving shaft 25 is connected to the rocker arm 10 by a threaded connection, which allows for quick disassembly. The driven shaft 24 serves as both the support shaft of the drum 1 and the transmission shaft of the large sprocket 21. The small sprocket 22 and the large sprocket 21, based on spatial planning, can cooperate with the chain 23 to complete the deceleration transmission, which is beneficial to improving the rolling speed of small plate parts in the drum 1, and thus helps to ensure the quality of the bluing process.

[0023] To ensure the tension performance of the chain drive mechanism 2, the support frame 8 provided by this invention has a lifting port on its side for the bearing seat 6 and the drive shaft 25 to move up and down. The bearing seat 6 is provided with bolts 11 and nuts 12 that connect to the support frame 8, and the bolts 11 are connected to the threaded holes on the support frame 8. Since the bearing seat 6 serves as the support end of the drive shaft 25, by finely adjusting the bearing seat 6 up and down, the actual distance between the small sprocket 22 and the large sprocket 21 can be adjusted, thereby obtaining a transmission path with better tension performance to ensure the performance of the manually controlled roller 1.

[0024] To prevent the roller 1 from moving left and right on the driven shaft 24, the driven shaft 24 provided by this utility model is provided with positioning sleeves 13 near both ends. The positioning sleeves 13 are threadedly connected to the driven shaft 24 to limit the maximum axial movement range of the large sprocket 21 together with the roller 1, thereby ensuring the working performance of the roller 1.

[0025] To improve the practicality of this device in the bluing process, the support frame 8 provided by this invention includes a pair of side plates 81, with multiple reinforcing bars 82 arranged between the side plates 81 near their bottom, and angle irons 83 arranged between the side plates 81 near their top. A chain drive mechanism 2 is arranged between the side plates 81, and bearing seats 6 and positioning sleeves 13 are both located on the outer side of the side plates 81. The support frame 8, roller 1, and chain drive mechanism 2 are all made of stainless steel or plated. The side plates 81, reinforcing bars 82, and angle irons 83 form a stable frame, providing an effective rotation center and base for the roller 1 and drive shaft 25, ensuring sufficient contact probability between the parts and the bluing medium, while maintaining an overall weight that is not excessive and facilitates transfer.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A bluing fixture for small sheet-like parts, comprising a perforated roller, wherein a chain drive mechanism is provided at the end of the roller, characterized in that, The roller is provided with at least one cover, and a hinge connected to the roller is provided on one side of the cover. A pin assembly is provided on the other side of the cover. A bearing seat is provided at the support end of the chain drive mechanism. A deep groove ball bearing is provided inside the bearing seat. The bearing seat is provided on a support frame. The roller is located inside the support frame. A V-shaped hook is provided above the support frame. A rocker arm detachably connected to the chain drive mechanism is provided on one side of the support frame.

2. The bluing fixture for small plate-type parts according to claim 1, characterized in that, The chain drive mechanism includes a large sprocket coaxially connected to the drum, and a small sprocket located above the large sprocket on its drive side. The large sprocket and the small sprocket are connected by a chain drive. The center of the large sprocket and the small sprocket are respectively provided with a driven shaft and a driving shaft. One end of the driving shaft is provided with a thread, and one end of the rocker arm is provided with a connecting hole that mates with the driving shaft.

3. The bluing fixture for small plate-type parts according to claim 2, characterized in that, The side of the support frame is provided with a lifting port for the bearing seat and the drive shaft to move up and down. The bearing seat is provided with bolts and nuts that are connected to the support frame.

4. The bluing fixture for small plate-type parts according to claim 3, characterized in that, The driven shaft is provided with positioning sleeves near both ends.

5. The bluing fixture for small plate-type parts according to claim 4, characterized in that, The support frame includes a pair of side plates, with multiple reinforcing bars distributed near the bottom between the side plates and angle irons distributed near the top between the side plates. The chain drive mechanism is disposed between the side plates, and the bearing seat and positioning sleeve are both disposed on the outer side of the side plates.

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