Cabin section part internal circular bead machining tool

Abstract

The utility model discloses a processing tool for an internal circular bead of a cabin section part, the shape of an electrode of the processing tool for the internal circular bead of the cabin section part is fit with a processing surface of an inner cavity of a workpiece, and the two processing surfaces are lengthened, so that the abrasion allowance is ensured, the processing tool can be used for a long time, the durability of the electrode is improved, and the requirement of frequently replacing the electrode is reduced. According to the machining tool for the internal fillet of the cabin section part, the center of an electrode is punched and fixed to a screw, the side wall of the electrode can be straightened through the design, alignment and leveling are easy when the electrode touches a workpiece front and back, it can be guaranteed that the electrode is always kept stable in the machining process, and the machining error caused by electrode deviation is reduced; the machining precision is improved, secondary alignment is not needed after the workpieces are inserted according to the positions of the pins, the clamp is suitable for batch machining, the clamping process of the workpieces is simplified, the operation time is shortened, the production efficiency is improved, meanwhile, the position consistency of the workpieces is guaranteed through pin positioning, and the machining precision is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cabin part processing, in particular to a tool for processing the internal fillet of cabin parts. Background Art

[0002] In modern manufacturing, the internal structure of cabin parts often serves as a positioning reference for subsequent assembly, placing high demands on their position and dimensions, particularly for circumferential and axial positioning of corner clearances. Traditional methods typically use vertical machining centers for one-step processing of internal cavities, but root fillets are difficult to remove, impacting assembly accuracy. While small-diameter milling cutters can reduce the amount of fillet residue, deep fillets remain difficult to machine due to tool length limitations. Consequently, five-axis machining or planing machines are required, or manual scraping is used to remove fillets, resulting in high processing costs, low efficiency, and substandard accuracy.

[0003] The present invention aims to solve the problems in actual production by using electric spark machining to improve work efficiency while ensuring machining accuracy. In view of this, a tooling for machining the internal fillet of cabin parts is now designed. Utility Model Content

[0004] The purpose of the utility model is to provide a tool for processing the internal fillet of cabin parts to solve the problems existing in the prior art mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tool for processing the internal fillet of cabin parts, comprising a control screw, a corner cleaning electrode, and a positioning base plate;

[0006] The corner cleaning electrode includes a middle connecting portion and two sets of lateral portions, wherein the two sets of lateral portions are respectively connected to both sides of the middle connecting portion;

[0007] An internal threaded mounting hole is provided in the top of the intermediate connecting portion, and the lower end of the control screw is connected to the internal threaded mounting hole through a threaded structure. Sliders are fixedly connected to both ends of the intermediate connecting portion. A bracket is integrally connected to the bottom edge of one side of the intermediate connecting portion close to the lateral portion, and a locking bolt is inserted between the bracket and the lateral portion.

[0008] A sliding groove is provided in the side where the two groups of lateral parts are close to each other, and the two groups of sliders are slidably connected in the two groups of sliding grooves respectively, and a clamping groove is provided in the side where the two groups of lateral parts are separated from each other;

[0009] The positioning base plate is arranged below the corner cleaning electrode, and two groups of pin holes are formed through the inner side of the positioning base plate.

[0010] Preferably, the slider and the slide groove are matched rectangular parallelepiped structures, and the distance between the lateral portion and the middle connecting portion is adjusted by moving the lateral portion.

[0011] Preferably, the lateral portion extends downwardly away from a side of the middle connecting portion.

[0012] Preferably, the side of the lateral portion away from the middle connecting portion is an arc-shaped structure.

[0013] Preferably, a chip removal groove is provided in the top of the positioning base plate, and the chip removal groove is arranged to pass through horizontally from front to back.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The electrode shape of the internal fillet processing tooling of the cabin section parts fits the inner cavity processing surface of the workpiece, and the processing surface is extended in two places to ensure wear margin and long-term use. This not only improves the durability of the electrode, but also reduces the need for frequent electrode replacement, thereby improving production efficiency.

[0016] 2. The internal fillet processing tooling of the cabin section parts is fixed with screws through the center hole of the electrode. This design can straighten the side wall of the electrode, making it easier to touch the workpiece for alignment and leveling. It can ensure that the electrode remains stable during the processing, reduce the processing error caused by electrode deviation, and improve the processing accuracy.

[0017] 3. The workpieces of the internal fillet processing tooling of the cabin section parts do not need secondary alignment after being inserted according to the pin position. This is suitable for batch processing, simplifies the workpiece clamping process, reduces operation time, and improves production efficiency. At the same time, the pin positioning also ensures the position consistency of each workpiece, further improving the processing accuracy.

[0018] 4. The tooling for machining internal fillets in this compartment section incorporates a chip chute in the base. During machining, coolant is injected from the top of the cavity, and waste chips flow out through the center chip chute at the bottom, improving machining efficiency. The chip chute design not only effectively removes waste chips generated during machining, preventing their accumulation and affecting machining quality, but also ensures sufficient coolant circulation, maintains a stable temperature in the machining area, and extends tool life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a tool for processing internal fillet corners of cabin parts in the utility model when in use;

[0020] Figure 2 This is a schematic diagram of the connection between the control screw and the corner cleaning electrode of a tool for processing the internal rounded corners of a cabin part of the present invention;

[0021] Figure 3This is a top view of a corner cleaning electrode of a tool for processing internal fillet corners of cabin parts in the utility model;

[0022] Figure 4 This is a top view of the structure of a corner cleaning electrode of a tool for processing internal fillet corners of cabin parts in the utility model;

[0023] Figure 5 This is a front structural cross-sectional view of a corner cleaning electrode of a tool for processing internal fillet corners of cabin parts according to the present invention;

[0024] Figure 6 The utility model is a top view of a tool for processing internal fillet corners of cabin parts when in use.

[0025] In the picture:

[0026] 1. Control screw;

[0027] 2. Corner cleaning electrode; 21. Intermediate connecting part; 211. Internal thread mounting hole;

[0028] 212, slider; 213, bracket;

[0029] 22, lateral portion; 221, slide groove; 222, clamping groove;

[0030] 3. Positioning base plate; 31. Pin hole; 32. Chip groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] See also Figure 1-6 The utility model provides a technical solution: a tool for processing internal fillet of cabin parts, including a control screw 1, a corner cleaning electrode 2, and a positioning base plate 3.

[0035] The corner cleaning electrode 2 includes a middle connecting portion 21 and two groups of lateral portions 22 . The two groups of lateral portions 22 are respectively connected to two sides of the middle connecting portion 21 .

[0036] An internal threaded mounting hole 211 is opened in the top of the intermediate connecting part 21, and the lower end of the control screw 1 is connected to the internal threaded mounting hole 211 through a threaded structure. Both ends of the intermediate connecting part 21 are fixedly connected with sliders 212. A bracket 213 is integrally connected to the bottom edge of one side of the intermediate connecting part 21 close to the lateral part 22, and a locking bolt is inserted between the bracket 213 and the lateral part 22.

[0037] Specifically, by drilling a hole in the center of the top of the electrode and fixing it with the control screw 1, this design can straighten the side wall of the electrode, making it easier to touch the workpiece for alignment and leveling, ensuring that the electrode remains stable during processing, reducing processing errors caused by electrode offset, and improving processing accuracy.

[0038] A sliding groove 221 is defined in the adjacent sides of the two sets of lateral portions 22 . The two sets of sliders 212 are slidably connected to the two sets of sliding grooves 221 . A clamping groove 222 is defined in the separate sides of the two sets of lateral portions 22 .

[0039] The lateral portion 22 extends downwardly away from the side of the intermediate connecting portion 21. Specifically, an extended design is made on two processing surfaces to ensure the electrode wear margin and enable long-term use. This not only improves the durability of the electrode, but also reduces the need for frequent electrode replacement, thereby improving production efficiency. In addition, the design of the lateral portion 22 extending downward increases the contact area between the electrode and the workpiece, enabling it to better fit the inner cavity processing surface of the workpiece, not only improving the stability of the processing, but also ensuring close contact between the electrode and the workpiece during the processing, reducing processing errors caused by poor contact. By increasing the contact area, the electrode can more evenly distribute the processing pressure, thereby improving the processing accuracy.

[0040] The side of the lateral portion 22 away from the middle connecting portion 21 is an arc-shaped structure. Specifically, the design of the arc-shaped structure enables the electrode to better fit the inner cavity corner position of the workpiece, ensuring close contact between the electrode and the workpiece during processing.

[0041] The slider 212 and the slide groove 221 are adapted rectangular parallelepiped structures. The side portion 22 is moved to adjust the distance between the slider 212 and the middle connecting portion 21. Specifically, the matching connection between the slider 212 and the slide groove 221 ensures the stable sliding of the slider 212 in the slide groove 221. The design of the rectangular parallelepiped structure increases the contact area between the slider 212 and the slide groove 221. Figure 2-4 By moving the lateral portion 22 to adjust the distance between it and the middle connecting portion 21, the overall length of the corner cleaning electrode 2 can be adjusted, so that it can adapt to workpieces of different sizes and shapes, allowing the equipment to process workpieces of various specifications, increasing the scope of application of the equipment and meeting different production needs.

[0042] Positioning base plate 3 is positioned below corner-removing electrode 2. Two sets of pin holes 31 are formed through the inner side of positioning base plate 3. Specifically, pins can be connected to pin holes 31 for positioning. This tooling for internal corner fillet processing of cabin parts eliminates the need for secondary alignment after inserting the workpiece according to the pin positions. This makes it suitable for batch processing, simplifies the workpiece clamping process, reduces operation time, and improves production efficiency. Pin positioning also ensures consistent positioning of each workpiece, further enhancing processing accuracy.

[0043] A chip flute 32 is defined within the top of the positioning base plate 3, extending transversely from front to back. Specifically, the design of the chip flute 32 effectively removes waste chips generated during machining, preventing their accumulation from affecting machining quality and maintaining a clean machining area. Furthermore, the chip flute 32 ensures adequate circulation of coolant. During machining, coolant can be injected from the top of the workpiece cavity and exit through the chip flute 32, removing heat generated during machining.

[0044] Specifically, during use, the tooling equipment, through EDM technology, can significantly improve machining efficiency while maintaining high precision. EDM can effectively remove root fillets, avoiding the problem of residual fillets that are difficult to remove with traditional machining methods, thereby improving assembly accuracy. By reducing reliance on five-axis machine tools, planers, and manual scraping, the tooling equipment significantly reduces machining costs. The relatively low cost and simple maintenance of EDM equipment further reduce production costs.

[0045] Specifically, when using, refer to the instructions attached Figure 1 And the instruction manual Figure 6After the positioning base plate 3 is installed on the workbench, straighten and align the side walls. After centering and aligning, install the pins on the pin holes 31 of the positioning base plate 3, then install the corner cleaning electrode 2 on the control screw 1, and then fix the control screw 1 on the spindle of the EDM machine, straighten the electrode side walls, move to the processing zero position, align the center of the positioning base plate 3 to set the processing origin, and then install the workpiece between the two groups of pin holes 31 of the positioning base plate 3. The zero position can be determined by centering to ensure that the bottom of the workpiece is flat with the positioning base plate 3, and then use the electrode to fine-tune the centering to start processing. During processing, the control screw 1 is fed in the Z axis, and the fillet is cleared by the electrode to process an outer shape that fits the arc of the inner cavity. After completing one piece, remove the workpiece and replace it with the next piece to continue subsequent processing. It is suitable for batch processing.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tool for processing internal fillet of cabin parts, characterized in that: It includes a control screw (1), a corner cleaning electrode (2), and a positioning base plate (3); The corner cleaning electrode (2) comprises a middle connecting portion (21) and two groups of lateral portions (22), wherein the two groups of lateral portions (22) are respectively connected to two sides of the middle connecting portion (21); An internal threaded mounting hole (211) is provided in the top of the intermediate connecting portion (21), and the lower end of the control screw (1) is connected to the internal threaded mounting hole (211) via a threaded structure. Sliders (212) are fixedly connected to both ends of the intermediate connecting portion (21), and a bracket (213) is integrally connected to the bottom edge of one side of the intermediate connecting portion (21) close to the lateral portion (22). A locking bolt is inserted and connected between the bracket (213) and the lateral portion (22); A sliding groove (221) is provided in the sides of the two groups of lateral portions (22) that are close to each other, and the two groups of sliders (212) are slidably connected in the two groups of sliding grooves (221), respectively. A clamping groove (222) is provided in the sides of the two groups of lateral portions (22) that are away from each other. The positioning base plate (3) is arranged below the corner cleaning electrode (2), and two groups of pin holes (31) are provided through the inner side of the positioning base plate (3).

2. The tool for processing internal fillet of cabin parts according to claim 1, characterized in that: The slider (212) and the slide groove (221) are matched rectangular parallelepiped structures, and the distance between the lateral portion (22) and the middle connecting portion (21) is adjusted by moving the lateral portion (22).

3. The tool for processing internal fillet of cabin parts according to claim 1, characterized in that: The lateral portion (22) is extended downwardly away from one side of the middle connecting portion (21).

4. The tool for processing internal fillet corners of cabin parts according to claim 1, characterized in that: The side of the lateral portion (22) away from the middle connecting portion (21) is an arc-shaped structure.

5. The tool for processing internal fillet of cabin parts according to claim 1, characterized in that: A chip removal groove (32) is provided in the top of the positioning base plate (3), and the chip removal groove (32) is arranged to be horizontally penetrated from front to back.

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