Quick tool for safety pin

Abstract

The utility model provides a quick tool for a safety pin. The quick tool comprises a connector (1), a mold disc (2), a casting plug (3), an annular safety pin (4) and a core rod (5), the mold disc (2) is in a polygonal star shape, the center of the mold disc (2) is connected with the connector (1), and the connector (1) is used for achieving connection between the mechanical arm clamp and the mold disc (2). A casting plug (3) is arranged at each convex corner of the mold disc (2), and a central through hole is formed in the center of each casting plug (3); the top end of the core rod (5) is provided with a radial pin hole, and the bottom end is connected with a shell; the annular safety pin (4) comprises a pin (6) and an O-shaped ring; the O-shaped ring is rotationally arranged at one end of the pin (6); a core rod (5) connected with a mold shell is arranged in the center through hole in a penetrating mode from the lower portion, a pin (6) is arranged in the pin hole in a penetrating mode, and the O-shaped ring is arranged on the core rod (5) in a sleeved mode. The quick assembling and disassembling device aims to assist in completing quick assembling and disassembling between a casting shell and a mold disc, so that the assembling and disassembling difficulty is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical design, specifically relating to a quick-release tooling for safety pins. Background Technology

[0002] In the field of investment casting, the quality of the casting—with its smooth surface and precise dimensions—is directly related to the quality of the mold shell, which in turn is closely related to the shell-making process. The mold shell is a hard shell produced by repeatedly processing a wax model through processes such as surface coating, sanding the coating layer, and drying. In automated shell-making lines, to improve production efficiency, multiple wax models are typically fixed onto a set of mold plates for shell-making operations, based on the wax model dimensions and the specifications of the shell-making equipment. Traditionally, the loading and unloading of the mold shell and mold plate requires manual operation, necessitating the use of wrenches and other tools for tightening and disassembly, which is time-consuming and labor-intensive.

[0003] The existing technology has the following problems:

[0004] 1. The shell and mold plate are usually fastened with bolts, which requires the use of special tools, making installation difficult, time-consuming and labor-intensive;

[0005] 2. During the shell-making process, powder and slurry may adhere to the mold plate tooling, which will create resistance to the disassembly of the shell and reduce the loading and unloading efficiency;

[0006] 3. During the shell-making process, if there is relative rotation between the shell and the mold plate, it may cause collision between the shells or even damage to the shell. Utility Model Content

[0007] This utility model provides a safety pin quick tooling, which is designed to assist in the rapid loading and unloading of the casting shell and the mold plate, thereby reducing the difficulty of loading and unloading and improving production efficiency.

[0008] This utility model provides a quick-release tooling for safety pins, including: a connector 1, a mold plate 2, a cast plug 3, an annular safety pin 4, and a mandrel 5;

[0009] The mold plate 2 is a polygonal star shape, with a connector 1 connected to the center. The connector 1 is used to connect the robotic gripper to the mold plate 2.

[0010] Each of the protruding corners of the mold plate 2 is provided with a casting plug 3, and the center of the casting plug 3 is provided with a central through hole;

[0011] The top end of the mandrel 5 is provided with a radial pin hole, and the bottom end is used to connect to the housing; the annular safety pin 4 includes: a pin 6 and an O-ring; the O-ring is rotatably disposed at one end of the pin 6;

[0012] The mandrel 5, which is connected to the shell, is inserted through the central through hole from below, the pin 6 is inserted through the pin hole, and the O-ring is fitted on the mandrel 5.

[0013] Optionally, the casting plug 3 is fastened to the mold plate 2 by bolts, without the need for disassembly.

[0014] Optionally, the diameter of the through hole on the mandrel 5 is larger than the diameter of the pin 6.

[0015] Optionally, the top of the cast plug 3 is provided with multiple grooves for engaging the pin 6.

[0016] Optionally, the pin 6 is in the form of a flat rod, with a clearance fit between it and the through hole of the mandrel 5 and the groove on the casting plug 3.

[0017] Optionally, connector 1 and mold plate 2 are fastened together by multiple bolts.

[0018] Optionally, the casting plug 3 and the core rod 5 are fitted with a clearance.

[0019] This utility model provides a quick-release tooling for safety pins, used in investment casting for the rapid fastening and disassembly of the mold shell and mold plate. It eliminates the need for wrenches or other installation tools, avoiding complex manual operations, saving time and labor, and improving production efficiency. Its main advantages are as follows:

[0020] 1. The use of cast plugs and ring safety pins replaces traditional bolt fastening, enabling quick connection between the shell and the mold plate without the need for special tools, reducing workload and improving production efficiency;

[0021] 2. When using traditional bolts for shell fabrication, powder and slurry may adhere to the threads, increasing the difficulty of disassembly. The safety pin has a smooth surface, making it less prone to foreign matter accumulation and easier to clean. The mandrel and safety pin use a clearance fit, allowing for easy removal even if foreign matter remains, ensuring efficient loading and unloading.

[0022] 3. The safety pin has a robust design, providing a reliable connection and fixation, ensuring stability and safety between the shell and the mold plate.

[0023] 4. Inserting and removing the safety pin requires opening the O-ring to ensure that the shell will not accidentally fall off or loosen during the shell-making process, thus increasing the safety of shell-making. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the quick-release tooling for the safety pin of this utility model;

[0025] Figure 2 Structural diagram of the safety pin quick-release tooling after loading;

[0026] Figure 3 A structural diagram showing the safety pin quick-release tooling after unloading.

[0027] Figure 4This is a schematic diagram of the structure of a cast plug;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1—Connector;

[0030] 2—Mold plate;

[0031] 3—Cast plug;

[0032] 4—Ring safety pin;

[0033] 5—Core rod;

[0034] 6-Pin. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific arrangements and methods set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and apparatus without departing from the spirit of this utility model. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.

[0037] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0039] like Figure 1-4As shown, this utility model provides a quick-release tooling for safety pins, including: a connector 1, a mold plate 2, a casting plug 3, an annular safety pin 4, and a mandrel 5 with a mold shell.

[0040] Connector 1 is used to connect the robotic arm clamp and the mold plate 2. The robotic arm clamp clamps the entire mold plate fixture by extending and retracting the clamping shaft, thereby driving the mold shell to perform corresponding standard actions such as slurry application and sanding.

[0041] The mold plate 2 is used to enable the robot to complete the shell making operation of multiple sets of shells at one time.

[0042] The casting plug 3 is fastened to the mold plate 2, serving as a connection medium between the shell and the mold plate 2.

[0043] The ring-shaped safety pin 4 is used in conjunction with the casting plug 3 to enable the loading and unloading of the housing on the mold plate 2.

[0044] The mandrel 5 with the shell is the medium for connecting the shell to other tooling.

[0045] Appendix Figure 2 The structural diagram of the safety pin quick-release tooling after loading is attached. Figure 3 A structural diagram showing the safety pin after quick unloading of the tooling is attached. Figure 4 This is a schematic diagram of the structure of the cast plug 3.

[0046] The casting plug 3 is fastened to the mold plate with bolts and does not require disassembly.

[0047] The mandrel 5 has a through hole at an appropriate position, the diameter of which is slightly larger than the diameter of the pin 6.

[0048] The annular safety pin 4 is a flat-bar annular safety pin. The flat-bar pin 6 facilitates the insertion and removal of the safety pin, while the O-ring is used to fix the pin 6, ensuring that it will not fall off during the shell-making process. When shell-making is required, the operator inserts the mandrel 5 containing the mold shell from the bottom of the casting plug 3, aligns the through hole of the mandrel 5 with the groove of the casting plug 3, inserts the pin 6 into the through hole of the mandrel 5 along the direction of the groove of the casting plug 3, and then attaches the O-ring of the annular safety pin 4 above the mandrel 5 to ensure that the annular safety pin 4 will not fall off during the slurry application and sand application processes.

[0049] This utility model uses the automated shell-making process with a robotic arm as an example to discuss its specific implementation:

[0050] 1. The operator fastens the casting plug 3, connector 1 and mold plate 2 together, using multiple bolts to ensure safety and stability. No disassembly is required after installation.

[0051] 2. When automatic shell making is required, the operator inserts the assembled mandrel 5 (containing the shell) through the through hole in the casting plug 3. The casting plug 3 and the mandrel 5 are fitted with a clearance, so even if there are foreign objects at the joint, it will not affect normal use.

[0052] 3. Align the through hole on the mandrel 5 with the groove above the casting plug 3, then insert the annular safety pin 4, and secure its O-ring to the other end through the mandrel 5 to ensure that the annular safety pin 4 will not fall off. The annular safety pin 4 is in the form of a flat rod, and has a clearance fit with the through hole on the mandrel 5 and the groove on the casting plug 3 to avoid difficulty in insertion and removal due to foreign objects such as sand and slurry.

[0053] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A security pin quick tooling characterized by, The utility model relates to a connector (1), a mould disc (2), a casting plug (3), a ring safety pin (4) and a core rod (5). The mould disc (2) is a multi-angle star, and the connector (1) is connected to the center of the mould disc (2) and used for connecting a mechanical hand clamp and the mould disc (2). The casting plug (3) is arranged at each protruding corner of the mould disc (2), and a center through hole is arranged in the center of the casting plug (3). The core rod (5) is provided with a radial pin hole at the top end and is used for connecting a shell; the ring safety pin (4) comprises a pin (6) and an O-shaped ring; the O-shaped ring is rotatably arranged at one end of the pin (6). The core rod (5) connected with the shell is arranged in the center through hole from below, the pin (6) is arranged in the pin hole, and the O-shaped ring is sleeved on the core rod (5). The casting plug (3) is tightly connected with the mould disc (2) through a bolt, and does not need to be disassembled.

2. The safety pin quick tooling of claim 1, wherein, The through hole on the core rod (5) is larger than the diameter of the pin (6).

3. The safety pin quick tooling of claim 1, wherein, The top of the casting plug (3) is provided with a plurality of grooves for clamping the pin (6).

4. The safety pin quick tooling of claim 1, wherein, The pin (6) is in the form of a flat rod, and is in clearance fit with the through hole of the core rod (5) and the groove on the casting plug (3).

5. The safety pin quick tooling of claim 4, wherein, The connector (1) and the mould disc (2) are tightly fixed together, and are fixed with each other through a plurality of bolts.

6. The safety pin quick tooling of claim 1, wherein, The casting plug (3) and the core rod (5) are in clearance fit.

7. The safety pin quick tooling of claim 1, wherein, ​

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