Five-axis machining tooling for a profiled shaft type shell workpiece

Abstract

The utility model discloses a five -axis machining frock of special-shaped axle class shell work piece belongs to five -axis machining frock field, the lower end of positioning axle support is connected with third adjusting table, the lower end of intermediate positioning frock is connected with second adjusting table, the lower end of lateral positioning frock is connected with first adjusting table, and the lower end of first adjusting table, second adjusting table and third adjusting table all are connected with T type key, and are connected with bottom moving table through T type key, T type sliding slot, realize that positioning axle, intermediate positioning frock and lateral positioning frock slide along bottom moving table through adjusting table. Through the T type key and the sliding slot cooperation between adjusting table and moving platform, realize the fine adjustment of work piece, improve the adjustment flexibility and work piece stability, satisfy the complex axle class spare precision machining demand, facilitate quick assembly and disassembly and overhaul. The convex block cooperates with the rotary fixing spare, makes the adjusting table angle can be from 0 to 180 degrees flexible adjustment, adapts many angle machining demand, improves the processing flexibility, expands frock application range.

Description

Technical Field

[0001] This utility model relates to the field of five-axis machining tooling, and in particular to a five-axis machining tooling for irregularly shaped shaft-type shell workpieces. Background Technology

[0002] Irregularly shaped shaft housings are workpieces with special shapes and structures, typically used in various mechanical equipment and devices to meet specific functional and performance requirements. These workpieces often have complex geometries, high precision requirements, and hard-to-reach machined surfaces, making their machining process relatively complex.

[0003] Five-axis machining fixtures are a highly efficient and precise machining method designed for complex workpieces. A five-axis machining fixture typically consists of a five-axis machine tool, tooling fixtures, and cutting tools, enabling positioning and connection in five degrees of freedom, thus achieving multi-angle and omnidirectional machining of irregularly shaped shaft-like shell workpieces.

[0004] In the current five-axis machining process of irregularly shaped shaft-type shell workpieces, tooling positioning is a crucial step. Traditionally, a combination of T-keys and T-grooves is commonly used to move the positioning tooling. While this structure meets the positioning requirements to a certain extent, it has also revealed some problems in practical applications.

[0005] Specifically, when a single positioning fixture component needs to be replaced due to wear or damage, the tight fit between the T-key and the T-slot necessitates the disassembly of the entire positioning fixture, making disassembly of the individual component extremely difficult. This not only increases the difficulty of maintenance but also extends repair time, thereby affecting production efficiency. Utility Model Content

[0006] The main objective of this invention is to provide a five-axis machining fixture for irregularly shaped shaft-type shell workpieces, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A five-axis machining fixture for irregularly shaped shaft-type shell workpieces includes a telescopic device, a positioning shaft, an intermediate positioning fixture, and a lateral positioning fixture. The positioning shaft is installed at the telescopic end of the telescopic device and the telescopic device enables telescopic operation. The intermediate positioning fixture is located between the lateral positioning fixture and the positioning shaft.

[0009] The lower end of the positioning shaft bracket is connected to a third adjustment platform, the lower end of the intermediate positioning fixture is connected to a second adjustment platform, and the lower end of the lateral positioning fixture is connected to a first adjustment platform. The lower ends of the first, second, and third adjustment platforms are all connected to T-keys, and a bottom moving platform is connected through the T-keys and T-slots, so that the positioning shaft, intermediate positioning fixture, and lateral positioning fixture can slide along the bottom moving platform through the adjustment platforms to achieve position adjustment.

[0010] The first, second, and third adjustment platforms are provided with protruding blocks at their corners. Two matching protruding blocks are fixed by a rotating fastener, and the angles of the first and third adjustment platforms can be adjusted by the protruding blocks and the rotating fastener.

[0011] As an optional solution of this application, the lower end of the T-key is provided with a mounting hole, and the T-key is fixed on the adjustment table by inserting a bolt into the mounting hole. The cross-section of the T-key is designed in an inverted "T" shape, and the contact end between the T-key and the bottom moving table is designed to be smooth.

[0012] As an optional solution of this application, the T-shaped slide groove is adapted to the T-shaped key, and the corners of the T-shaped key and the T-shaped slide groove are arc-shaped, and multiple T-shaped slide grooves are equidistantly distributed on the bottom moving platform;

[0013] As an optional solution of this application, the first adjustment platform, the second adjustment platform and the third adjustment platform are integrated with the protrusions that contact them, the upper and lower protrusions are stacked, the edges of the protrusions are arc-shaped, and the space between the two protrusions is smooth.

[0014] As an optional solution of this application, the rotating fixing component consists of a T-shaped rod, a nut, and an anti-slip washer. The nut and the anti-slip washer are fitted onto the end of the T-shaped rod, and the T-shaped rod passes through the holes on the two protrusions to fix the two protrusions.

[0015] As an optional solution of this application, when the rotating fastener is loose, the rotation angle range of the first adjustment platform and the third adjustment platform is from zero degrees to one hundred and eighty degrees.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By utilizing the T-keys and T-grooves between the first, second, and third adjustment stages and the bottom moving stage, precise sliding adjustment of the workpiece position is achieved. This design not only improves the flexibility of adjustment but also ensures the stability and uniformity of the workpiece in all directions, thus meeting the precision machining requirements of complex-shaped shaft parts. Furthermore, it allows for quick assembly and disassembly, facilitating subsequent maintenance.

[0018] The combination of the protruding block and the rotating fixing component allows for flexible adjustment of the angles of the first and third adjusting platforms, ranging from zero to 180 degrees, greatly adapting to the needs of different machining angles. This design not only improves machining flexibility but also effectively expands the application range of the tooling.

[0019] The cross-section of the T-key is designed in an inverted "T" shape, ensuring smooth contact between the T-key and the bottom moving stage, reducing friction and wear during processing, thereby improving processing efficiency and precision. Meanwhile, the corners of the T-slot are designed with an arc shape, further reducing stress concentration and improving smoothness of sliding.

[0020] The adjustment platform and its contact protrusions are designed as a single unit, with the upper and lower protrusions stacked together and rounded edges. This design not only reduces stress concentration but also improves the stability of the contact surface. The smooth design between the two protrusions further reduces friction and ensures a smooth adjustment process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall structure of this utility model;

[0023] Figure 3 This is a diagram showing the overall structure of the present invention;

[0024] Figure 4 This is a diagram showing the rotating use of the adjustment table of this utility model;

[0025] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Bottom moving platform; 2. T-shaped slide; 3. First adjusting platform; 4. Second adjusting platform; 5. Third adjusting platform; 6. Telescopic device; 7. Positioning shaft; 8. Intermediate positioning fixture; 9. Lateral positioning fixture; 10. Protrusion; 11. Rotary fixing part; 12. T-key; 13. Mounting hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 - Figure 5As shown, a five-axis machining fixture for irregularly shaped shaft-like shell workpieces is presented. This fixture is particularly suitable for the precision machining of complex-shaped shaft parts and mainly consists of a telescopic device 6, a positioning shaft 7, an intermediate positioning fixture 8, and a lateral positioning fixture 9. The positioning shaft 7 is installed at the telescopic end of the telescopic device 6. By telescopically extending or retracting the telescopic device 6, the positioning shaft 7 can be moved to adjust its position. The intermediate positioning fixture 8 is positioned between the lateral positioning fixture 9 and the positioning shaft 7 to ensure the stability and accuracy of the workpiece during machining.

[0029] The lower end of the support of the positioning shaft 7 is connected to the third adjusting platform 5, the lower end of the intermediate positioning fixture 8 is connected to the second adjusting platform 4, and the lower end of the lateral positioning fixture 9 is connected to the first adjusting platform 3. The lower ends of the first adjusting platform 3, the second adjusting platform 4, and the third adjusting platform 5 are all connected to the bottom moving platform 1 via T-keys 12. The T-keys 12 cooperate with the bottom moving platform 1 through T-slots 2, allowing the positioning shaft 7, the intermediate positioning fixture 8, and the lateral positioning fixture 9 to slide along the bottom moving platform 1, thereby achieving fine adjustment of the workpiece position.

[0030] To improve the flexibility and accuracy of adjustments, protrusions 10 are provided at the corners of the first adjustment platform 3, the second adjustment platform 4, and the third adjustment platform 5. Two matching protrusions 10 are fixed by a rotating fixing member 11. By using the protrusions 10 in conjunction with the rotating fixing member 11, the angles of the first adjustment platform 3 and the third adjustment platform 5 can be adjusted to meet the needs of different processing angles.

[0031] The lower end of the T-key 12 is provided with mounting holes 13, which are fixed to the adjustment table by bolts. The cross-section of the T-key 12 is designed as an inverted "T" shape. This design can ensure the smoothness of the contact end between the T-key 12 and the bottom moving table 1, reduce friction and wear during the processing, and thus improve processing efficiency and accuracy.

[0032] The T-shaped groove 2 is adapted to the T-shaped key 12, and its corners are designed with an arc shape to reduce stress concentration and improve the smoothness of sliding. Multiple T-shaped grooves 2 are evenly distributed on the bottom moving table 1 to ensure the stability and uniformity of the tooling in all directions.

[0033] The protrusions 10 that contact the first adjustment platform 3, the second adjustment platform 4, and the third adjustment platform 5 are integrated into one piece. The upper and lower protrusions 10 are stacked with rounded edges to reduce stress concentration and improve the stability of the contact surface. The area between the two protrusions 10 is smooth to reduce friction and ensure a smooth adjustment process.

[0034] The rotating fixing component 11 consists of a T-shaped rod, a nut, and an anti-slip washer, with the nut and anti-slip washer fitted onto the end of the T-shaped rod. The T-shaped rod passes through the openings of the two protruding blocks 10, and the two protruding blocks 10 are fixed by rotating the nut. This design allows the first adjusting platform 3 and the third adjusting platform 5 to achieve rotation angle adjustment from zero to 180 degrees when the rotating fixing component 11 is in a loose state, to adapt to different angle processing requirements; the adjustment methods of the T-shaped key 12 and the protruding blocks 10 can be used selectively.

[0035] By operating the telescopic device 6, the positioning shaft 7 can be telescopically moved to adjust it to the desired position. The intermediate positioning fixture 8 is placed between the lateral positioning fixture 9 and the positioning shaft 7 to ensure the stability and accuracy of the workpiece during processing.

[0036] Fine adjustments are made using the first adjusting table 3, the second adjusting table 4, and the third adjusting table 5. The workpiece position is adjusted by sliding through the T-key 12 and the T-slot 2.

[0037] The angle is adjusted using the protruding blocks 10 at the corners of the first adjusting table 3 and the third adjusting table 5, and the rotating fixing member 11. The two protruding blocks 10 are fixed by rotating the nut of the fixing member 11, thereby adjusting the angle. The adjustment range is from zero to 180 degrees to accommodate different processing angle requirements.

[0038] Ensure that the cross-section of the T-key 12 is an inverted "T" shape to reduce friction and wear. The corners of the T-slot 2 are designed with an arc shape to reduce stress concentration and improve sliding smoothness. The T-key 12 is fixed to the adjustment table by inserting bolts into the mounting holes 13, ensuring the stability of the contact surface between the adjustment table and the protrusion 10, with the edges designed with an arc shape.

[0039] The protrusions 10 that contact the first adjustment platform 3, the second adjustment platform 4, and the third adjustment platform 5 are designed as a single unit. The upper and lower protrusions 10 are stacked with rounded edges to reduce stress concentration. The area between the two protrusions 10 is smooth to reduce friction and ensure smooth adjustment.

[0040] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A five-axis machining fixture for irregularly shaped shaft-type shell workpieces, comprising a telescopic device (6), a positioning shaft (7), an intermediate positioning fixture (8), and a lateral positioning fixture (9), wherein the positioning shaft (7) is installed at the telescopic end of the telescopic device (6) and the telescopic operation is realized through the telescopic device (6), and the intermediate positioning fixture (8) is located between the lateral positioning fixture (9) and the positioning shaft (7), characterized in that: The lower end of the positioning shaft (7) bracket is connected to a third adjustment platform (5), the lower end of the intermediate positioning fixture (8) is connected to a second adjustment platform (4), the lower end of the lateral positioning fixture (9) is connected to a first adjustment platform (3), the lower ends of the first adjustment platform (3), the second adjustment platform (4) and the third adjustment platform (5) are all connected to a T-key (12), and the bottom moving platform (1) is connected through the T-key (12) and the T-slide (2), so that the positioning shaft (7), the intermediate positioning fixture (8) and the lateral positioning fixture (9) can slide along the bottom moving platform (1) through the adjustment platform to achieve position adjustment; The first adjustment platform (3), the second adjustment platform (4) and the third adjustment platform (5) are provided with protruding blocks (10) at the corners. Two matching protruding blocks (10) are fixed by rotating fasteners (11), and the angles of the first adjustment platform (3) and the third adjustment platform (5) are adjusted by the protruding blocks (10) and rotating fasteners (11).

2. The five-axis machining fixture for irregularly shaped shaft-type shell workpieces according to claim 1, characterized in that: The lower end of the T-key (12) is provided with a mounting hole (13). The T-key (12) is fixed on the adjustment table by inserting a bolt into the mounting hole (13). The cross-section of the T-key (12) is an inverted "T" shape. The contact end between the T-key (12) and the bottom moving table (1) is smooth.

3. The five-axis machining fixture for irregularly shaped shaft-type shell workpieces according to claim 2, characterized in that: The T-shaped groove (2) is adapted to the T-shaped key (12), and the corners of the T-shaped key (12) and the T-shaped groove (2) are arc-shaped. Multiple T-shaped grooves (2) are equidistantly distributed on the bottom moving platform (1).

4. The five-axis machining fixture for irregularly shaped shaft-type shell workpieces according to claim 3, characterized in that: The first adjustment platform (3), the second adjustment platform (4) and the third adjustment platform (5) are integrated with the protrusions (10) that are in contact with them. The upper and lower protrusions (10) are stacked. The edges of the protrusions (10) are arc-shaped and the two protrusions (10) are smooth.

5. The five-axis machining fixture for irregularly shaped shaft-type shell workpieces according to claim 4, characterized in that: The rotating fastener (11) consists of a T-shaped rod, a nut, and an anti-slip washer. The nut and the anti-slip washer are fitted onto the end of the T-shaped rod. The T-shaped rod passes through holes in two protruding blocks (10) to fix the two protruding blocks (10).

6. The five-axis machining fixture for irregularly shaped shaft-type shell workpieces according to claim 5, characterized in that: When the rotating fixing member (11) is loose, the rotation angle range of the first adjusting platform (3) and the third adjusting platform (5) is from zero degrees to one hundred and eighty degrees.

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