Positioning mechanism for iron casting machining

Abstract

The utility model discloses an iron casting machining positioning mechanism which comprises a base, and a bottom machining hole is formed in the base. The telescopic cylinder is mounted on the base through a cylinder seat; the output end of the telescopic cylinder is connected with a second shaft seat, and the second shaft seat is connected with a connecting block; the connecting block is connected with a pressing piece through a sliding shaft, and a spring is arranged on the sliding shaft. According to the iron casting machining and positioning mechanism, accurate positioning is achieved through elastic design, the size deviation and the surface unevenness of a workpiece can be compensated in a self-adaptive mode, and deformation damage caused by rigid extrusion is avoided; machining equipment is supported to directly work from the bottom or the interior, and workpiece overturning is reduced; and multiple casting die types are matched with workpieces in different shapes, the casting die can be conveniently and rapidly replaced through the modular structure, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cast iron parts processing, and in particular to a positioning mechanism for cast iron parts processing. Background Technology

[0002] A positioning mechanism for cast iron parts is a device used to fix and position cast iron workpieces, widely used in machinery manufacturing, automotive parts processing, and other fields. Its core function is to ensure that the workpiece maintains stable positional accuracy during processing, avoiding dimensional errors or surface damage caused by positioning deviations. In cast iron parts processing, traditional positioning mechanisms often use rigid pressure heads to directly press the workpiece for positioning. However, when the surface of the cast iron part is uneven or has dimensional deviations, the rigid pressure head cannot adaptively adjust, easily leading to inaccurate positioning or even workpiece deformation. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a positioning mechanism for processing cast iron parts. This positioning mechanism achieves precise positioning through elastic design, can adaptively compensate for workpiece size deviations and surface unevenness, and avoids deformation damage caused by rigid extrusion; it supports processing equipment to operate directly from the bottom or inside, reducing workpiece flipping; multiple pressure component types are suitable for workpieces of different shapes, and the modular structure facilitates quick replacement of pressure components, improving production efficiency.

[0005] To achieve the above objectives, this utility model proposes a positioning mechanism for machining cast iron parts, including a base with a bottom machining hole; it also includes a telescopic cylinder mounted on the base via a cylinder seat; the output end of the telescopic cylinder is connected to a second shaft seat, and the second shaft seat is connected to a connecting block; the connecting block is connected to a pressure member via a sliding shaft, and the sliding shaft is provided with a spring.

[0006] This utility model discloses a positioning mechanism for processing cast iron parts. Through its elastic design, the mechanism achieves precise positioning and can adaptively compensate for workpiece size deviations and surface unevenness, avoiding deformation damage caused by rigid extrusion. It supports direct operation of the processing equipment from the bottom or inside, reducing workpiece flipping. Multiple pressure component types are available to adapt to workpieces of different shapes, and the modular structure facilitates quick replacement of pressure components, improving production efficiency.

[0007] In addition, the casting iron part machining positioning mechanism proposed in the application may also have the following additional technical features:

[0008] Furthermore, the pressing member is a triangular pressing member, which is connected to the connecting block via the sliding shaft, and the spring is sleeved on the sliding shaft.

[0009] Furthermore, the pressing member is an arc-shaped pressing member, which is connected to the connecting block through the sliding shaft, and the spring is sleeved on the sliding shaft.

[0010] Furthermore, the pressing component is a flat pressing component, which is connected to the connecting block via the sliding shaft, and the spring is sleeved on the sliding shaft.

[0011] Furthermore, the pressing component includes a pressing adapter block and an adapter block. The pressing adapter block is connected to the connecting block via a sliding shaft. An adapter groove is provided on the pressing adapter block, and the shape of the adapter block is adapted to the shape of the adapter groove.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0014] Figure 1 This is a schematic diagram of the positioning mechanism for machining cast iron parts according to this utility model;

[0015] Figure 2 This is a schematic diagram of the pressure component and its connecting parts in the positioning mechanism for machining cast iron parts according to this utility model;

[0016] Figure 3 This is a schematic diagram of the second embodiment of the pressure component and its connecting parts in the casting iron part processing and positioning mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the third embodiment of the pressure component and its connecting parts in the casting iron part processing and positioning mechanism of this utility model.

[0018] As shown in the figure: 1. Base; 2. Telescopic cylinder; 3. Bottom machining hole; 4. Cylinder seat; 5. First shaft seat; 6. Pressing component; 7. Pressing adapter block; 8. Adapter groove; 9. Connecting block; 10. Second shaft seat; 11. Spring; 12. Sliding shaft; 13. Adapter locking block; 14. Triangular pressing component; 15. Arc-shaped pressing component; 16. Flat pressing component. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The following description, in conjunction with the accompanying drawings, describes the positioning mechanism for machining cast iron parts according to an embodiment of the present invention.

[0021] like Figures 1-4 As shown, the cast iron part processing and positioning mechanism of this utility model includes a base 1 with a bottom processing hole 3. It also includes a telescopic cylinder 2, which is mounted on the base 1 via a cylinder seat 4. The output end of the telescopic cylinder 2 is connected to a second shaft seat 10, which is connected to a connecting block 9. The connecting block 9 is connected to a pressure member 6 via a sliding shaft 12, and a spring 11 is provided on the sliding shaft 12.

[0022] Specifically, in the initial state: the telescopic cylinder 2 is in the retracted state, the spring 11 is in the naturally extended state, and the pressure piece 6 is in the initial position away from the positioning plane of the base 1, leaving space for the clamping of the cast iron parts.

[0023] Cast iron parts clamping and positioning: Place the cast iron parts on the positioning plane of the base 1, so that the bottom or inner wall of the part to be machined is aligned with the bottom machining hole 3.

[0024] The control system drives the telescopic cylinder 2 to extend, and the output end pushes the connecting block 9 to move towards the cast iron part through the second shaft seat 10, which in turn drives the sliding shaft 12 to move synchronously with the pressure part.

[0025] Elastic clamping process: When the clamping component 6 contacts the side of the cast iron part, the telescopic cylinder 2 continues to extend slightly, and the compression spring 11 generates elastic force, so that the clamping component 6 is tightly attached to the surface of the cast iron part.

[0026] The elastic floating characteristic of spring 11 allows the pressure piece to slide slightly on sliding shaft 12, adaptively compensating for dimensional deviations or surface unevenness of cast iron parts, and avoiding workpiece deformation caused by rigid extrusion.

[0027] Processing: The pressure component fixes the cast iron part to the base 1 by elastic force. The processing equipment, such as the machine tool spindle, performs drilling, boring and other processing operations on the bottom or inner wall of the cast iron part through the bottom processing hole 3. The diameter of the bottom processing hole 3 is larger than the maximum working diameter of the processing equipment to ensure that there is no interference during processing.

[0028] Release and unloading: After processing is completed, the telescopic cylinder 2 retracts and resets, and the elastic force of the spring 11 pushes the pressure piece back to the initial position, allowing the operator to easily remove the cast iron part and complete one processing cycle.

[0029] The pressure component fixes the cast iron part to the base 1 by elastic force. The processing equipment, such as the machine tool spindle, performs drilling, boring and other processing operations on the bottom or inner wall of the cast iron part through the bottom processing hole 3. The diameter of the bottom processing hole 3 is larger than the maximum working diameter of the processing equipment to ensure that there is no interference during processing.

[0030] In this embodiment, it should be noted that the core function of the bottom machining hole 3 is to provide a machining path for machining equipment such as drill bits and milling cutters, allowing the equipment to machine the bottom or inner wall of the cast iron part through the hole, thereby achieving the function of "positioning and machining simultaneously".

[0031] In one embodiment of this application, the pressure member 6 is a triangular pressure member 14, which is connected to the connecting block 9 via a sliding shaft 12, and the spring 11 is sleeved on the sliding shaft 12.

[0032] Specifically, the bottom edge is vertically connected to the sliding shaft 12. This vertical connection provides a stable support foundation for the pressure member, ensuring that the triangular pressure member 14 remains stable under force and preventing tilting or wobbling from affecting the positioning effect. Its two sides are intentionally designed as inclined surfaces, a design precisely to accurately fit cast iron workpieces with large outer wall slopes. By customizing the angle of the inclined surfaces to match the outer wall slope of the cast iron workpiece, the triangular pressure member 14 can tightly conform to these specially shaped cast iron workpieces.

[0033] In one embodiment of this application, the pressure member 6 is an arc-shaped pressure member 15, which is connected to the connecting block 9 via a sliding shaft 12, and the spring 11 is sleeved on the sliding shaft 12.

[0034] Specifically, the arc-shaped pressure piece 15 is characterized by its front end being machined into an arc-shaped surface that fits the arc side of the cast iron part. The radius of the arc surface is usually designed to be between R50 and R100 mm, which can accurately fit the arc shape of the cast iron part.

[0035] In one embodiment of this application, the pressure member 6 is a flat pressure member 16, which is connected to the connecting block 9 via a sliding shaft 12, and the spring 11 is sleeved on the sliding shaft 12.

[0036] Specifically, the flat pressing component 16 presents a flat plate-like structure, and this simple planar design makes it suitable for positioning cast iron parts with flat or regular surfaces.

[0037] In one embodiment of this application, the pressing member 6 includes a pressing adapter block 7 and an adapter block 13. The pressing adapter block 7 is connected to the connecting block 9 via a sliding shaft 12. An adapter groove 8 is provided on the pressing adapter block 7. The shape of the adapter block 13 is adapted to the shape of the adapter groove 8.

[0038] Specifically, the pressure adapter block 7 serves as the connecting body and is connected to the connecting block 9 via the sliding shaft 12. It can slide along the axis of the sliding shaft 12. Meanwhile, the adapter groove 8 on its side provides an installation interface for the adapter card block 13. The adapter card block 13 and the adapter groove 8 are shape-matched and can be tightly engaged. This design allows the pressure component 6 to quickly change to different types of pressure heads, such as triangular pressure heads, arc-shaped pressure heads, and flat pressure heads. Simply fix the adapter card block 13 to the different pressure heads and then mate it with the adapter groove 8 of the pressure adapter block 7.

[0039] Specifically, in the actual implementation process, the first step is to prepare the initial state.

[0040] Mechanism reset: When the telescopic cylinder 2 is in the retracted state, the spring 11 naturally extends, and the pressure piece 6 retracts with the connecting block 9 to the initial position outside the base 1, maintaining a safe distance from the base positioning plane, thus reserving sufficient space for clamping the cast iron parts.

[0041] Equipment inspection: Confirm that there is no debris blocking the bottom machining hole 3, and that the pressure parts, such as triangular pressure parts and arc-shaped pressure parts, have been installed in place in advance according to the shape of the cast iron parts, and that the sliding shaft 12 and the spring 11 are securely connected.

[0042] II. Clamping and positioning of cast iron parts.

[0043] Workpiece placement: The operator places the cast iron part to be processed on the positioning plane of the base 1, ensuring that the bottom or inner wall area of ​​the cast iron part to be processed is aligned with the bottom processing hole 3, and initially adjusts the position of the workpiece to visually center it.

[0044] Reference alignment: By using the limiting structure of the base positioning plane or through manual calibration, the side of the cast iron part is made perpendicular to the direction of movement of the pressing part, providing a reference for subsequent clamping.

[0045] 3. The telescopic cylinder drives the movement of the pressing component.

[0046] System startup: The operator sends a clamping command through the control system such as PLC or push-button switch, and the telescopic cylinder 2 begins to extend.

[0047] Power transmission: The output end of the telescopic cylinder 2 pushes the second shaft seat 10 forward, which drives the connecting block 9, the sliding shaft 12 and the pressure piece to move synchronously along the positioning plane of the base until the pressure piece approaches the side of the cast iron part.

[0048] IV. Elastic compression and adaptive compensation.

[0049] Contact with the workpiece: When the front end of the pressing part, such as the flat pressing part 16, contacts the side of the cast iron part, the telescopic cylinder 2 continues to extend slightly by about 1-3mm, and the compression spring 11 generates an elastic clamping force.

[0050] Flexible bonding:

[0051] For conventional cast iron parts: the flat surface of the flat pressure part 16 fits in close contact with the flat surface of the workpiece, and the elastic force of the spring 11 is evenly distributed to avoid rigid compression.

[0052] Inclined cast iron parts: The inclined waist surface of the triangular pressure piece 14 matches the slope of the workpiece. Through the sliding of the sliding shaft 12 and the spring buffer, it adaptively fits the workpiece with a large outer wall slope.

[0053] Arc-shaped cast iron parts: The arc-shaped surface of the arc-shaped pressure piece 15 contacts the arc-shaped side of the workpiece. The elastic floating of the spring allows the arc of the surface to be slightly adjusted to compensate for dimensional deviations.

[0054] Stable positioning: The elastic force of spring 11 keeps the pressure member tightly attached to the workpiece, while allowing the pressure member to slide slightly along the sliding shaft 12 by ±0.5mm, which can accommodate uneven workpiece surfaces or dimensional tolerances and prevent workpiece deformation.

[0055] V. Operation of processing equipment.

[0056] Path alignment: Confirm that the pressure piece has stably fixed the cast iron part to the base. Align the processing equipment, such as the machine tool spindle and drill bit, with the part to be processed along the axis of the bottom processing hole 3. The diameter of the bottom processing hole should be larger than the maximum working diameter of the equipment. For example, if the equipment diameter is 50mm, the hole diameter should be designed to be 60mm to avoid processing interference.

[0057] Processing execution: Start the processing equipment and perform drilling, boring, milling and other operations on the bottom or inner wall of the cast iron part through the bottom machining hole 3. During the processing, the clamping part continuously provides a stable clamping force.

[0058] VI. Loosen and unload the material and reset it.

[0059] Mechanism release: After processing is completed, the control system sends a reset command, the telescopic cylinder 2 retracts and returns, and the spring 11 pushes the pressure piece back to the initial position along with the connecting block 9, completely releasing the clamping force on the cast iron part.

[0060] Workpiece disassembly: The operator directly removes the cast iron part, checks the machining quality, and completes a single machining cycle.

[0061] Status Reset: Confirms that the clamping component and telescopic cylinder have returned to their initial positions, preparing for the next clamping.

[0062] In summary, the cast iron part processing positioning mechanism of this utility model achieves precise positioning through elastic design, and can adaptively compensate for workpiece dimensional deviations and surface unevenness, avoiding deformation damage caused by rigid extrusion. It supports direct operation of the processing equipment from the bottom or inside, reducing workpiece flipping. Multiple clamping component types are available to adapt to workpieces of different shapes, and the modular structure facilitates quick clamping component replacement, improving production efficiency.

[0063] In the description of this specification, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A positioning mechanism for machining cast iron parts, characterized in that, Includes a base (1), on which a bottom machining hole (3) is provided; It also includes a telescopic cylinder (2), which is mounted on the base (1) via a cylinder seat (4); The output end of the telescopic cylinder (2) is connected to a second bearing seat (10), and the second bearing seat (10) is connected to a connecting block (9); The connecting block (9) is connected to a pressure member (6) via a sliding shaft (12), and a spring (11) is provided on the sliding shaft (12).

2. The casting iron part machining positioning mechanism according to claim 1, characterized in that, The pressure member (6) is a triangular pressure member (14), which is connected to the connecting block (9) through the sliding shaft (12), and the spring (11) is sleeved on the sliding shaft (12).

3. The casting iron part machining positioning mechanism according to claim 1, characterized in that, The pressure member (6) is an arc-shaped pressure member (15), which is connected to the connecting block (9) through the sliding shaft (12), and the spring (11) is sleeved on the sliding shaft (12).

4. The casting iron part machining positioning mechanism according to claim 1, characterized in that, The pressing component (6) is a flat pressing component (16), which is connected to the connecting block (9) through the sliding shaft (12), and the spring (11) is sleeved on the sliding shaft (12).

5. The casting iron part machining positioning mechanism according to claim 1, characterized in that, The pressing component (6) includes a pressing adapter block (7) and an adapter block (13). The pressing adapter block (7) is connected to the connecting block (9) via a sliding shaft (12). An adapter groove (8) is provided on the pressing adapter block (7). The shape of the adapter block (13) is adapted to the shape of the adapter groove (8).

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