Universal quick-change tool for automatic machining of discrete spaceflight precision parts

Abstract

The invention discloses a universal quick-change tool for automatic machining of discrete spaceflight precision parts. A boss is arranged at one end, in the first direction, of a base; the 124mm five-axis milling numerical control machining center vice positioning assembly is located on the end face, away from the boss in the first direction, of the base and used for positioning a 124mm five-axis milling numerical control machining center vice. The vise positioning assembly of the 46 mm five-axis milling and grinding numerical control machining center is located on the non-boss end face of the base and used for positioning a vise of the 46 mm five-axis milling and grinding numerical control machining center. The electric spark reference piece positioning assembly is located on the periphery of a vise positioning assembly of the 46mm five-axis milling and grinding numerical control machining center and used for positioning an electric spark reference piece. The A63 taper shank positioning assembly is located in the middle of the vise positioning assembly of the 46mm five-axis milling and grinding numerical control machining center and used for positioning the first taper shank.

Description

Technical Field

[0001] This invention relates to a universal quick-change tooling for automated machining of discrete aerospace precision parts, which is used for flexible automated machining of a variety of discrete precision parts. Background Technology

[0002] Existing automated quick-change tooling is mostly concentrated in combination with zero-point quick-change technology, targeting one or two processes, and lacks general-purpose quick-change tooling devices that can handle more processes, various processing equipment, and composite process methods.

[0003] Chinese patent CN114131398A describes a high-precision quick-change machining fixture with trapezoidal cross keyway positioning. It employs a base and a quick-change base plate, enabling rapid and precise positioning across multiple processes through quick insertion and separation. Chinese patent CN118559457A describes a quick-change device for milling and turning operations in precision parts machining. It uses a hollow flange base and a pressure telescopic cylinder within it, allowing direct switching of turning fixtures to the milling machine table, avoiding the need for repeated alignment of machining zero points and datum surfaces. Chinese patent CN217371403U describes an automatic changing fixture for aerospace parts machining. It uses a positioning seat and several positioning components, allowing for the clamping of different parts with high efficiency. However, these existing technologies do not meet the demands of automated manufacturing for precision parts in aerospace control systems, which require "multiple varieties and small batches." Summary of the Invention

[0004] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a general quick-change tooling for the automated processing of discrete aerospace precision parts, which is oriented towards the "multi-variety, small-batch" automated manufacturing production mode of precision parts for aerospace control systems.

[0005] The objective of this invention is achieved through the following technical solutions:

[0006] A general-purpose quick-change tooling for automated machining of discrete aerospace precision parts includes a base and a 124mm five-axis milling CNC machining center vise positioning assembly, a 46mm five-axis milling CNC machining center vise positioning assembly, a reference plate positioning assembly for an EDM machine tool, and an A63 taper shank positioning assembly for a turning machine tool, all mounted on the end face of the base.

[0007] A boss is provided at one end of the base along the first direction; a 124mm five-axis milling CNC machining center vise positioning assembly is located on the end face of the base away from the boss along the first direction, and the 124mm five-axis milling CNC machining center vise positioning assembly is configured to position the 124mm five-axis milling CNC machining center vise; a 46mm five-axis milling CNC machining center vise positioning assembly is located on the non-bore end face of the base, and the 46mm five-axis milling CNC machining center vise positioning assembly is configured to position the 46mm five-axis milling CNC machining center vise; an EDM reference plate positioning assembly is located around the 46mm five-axis milling CNC machining center vise positioning assembly, and the EDM reference plate positioning assembly is configured to position the EDM reference plate; an A63 taper shank positioning assembly is located in the middle of the 46mm five-axis milling CNC machining center vise positioning assembly, and the A63 taper shank positioning assembly is configured to position the first taper shank.

[0008] Compared with the prior art, the present invention has the following advantages:

[0009] (1) It can be compatible with the automated installation, machine tool loading and unloading, automated processing and inspection of parts processed by five types of machining processes, including lathe parts, milling machine parts, grinding machine parts, EDM parts, and wire EDM parts, and can meet the automated parts processing of four types of processing equipment.

[0010] (2) By integrating the first vise positioning component, the second vise positioning component, the third vise positioning component, the first cone shank positioning component, the second cone shank positioning component and the reference piece tooling positioning component on the base, it is possible to quickly position and replace various quick-change fixtures, which facilitates the unified transportation and management of various fixtures and their carried materials, and improves the automation level and efficiency of the production line; it can significantly improve the efficiency of automated processing of precision parts and reduce costs, with the efficiency of automated loading and unloading of parts increasing by more than 75% and saving more than 60% of the cost of mobile robotic arms.

[0011] (3) By designing corresponding positioning pins and positioning holes for various quick-change fixtures, when the quick-change fixture is placed on the base, the positioning holes cooperate with the zero-point positioning pins on the quick-change fixture to fix the position of various quick-change fixtures.

[0012] (4) By setting positioning irons on the side of the base, the precise positioning of the base in the tray is ensured, which facilitates the positioning and gripping of the base by the robotic arm. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a general-purpose quick-change tooling used for automated machining of discrete aerospace precision parts.

[0014] Figure 2This is a top view schematic diagram of a general-purpose quick-change tooling used for automated machining of discrete aerospace precision parts.

[0015] Figure 3 This is a top view schematic diagram of a general-purpose quick-change tooling used for automated machining of discrete aerospace precision parts.

[0016] Figure 4 This is a side view of a general-purpose quick-change tooling used for automated machining of discrete aerospace precision parts. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] A general-purpose quick-change tooling for automated machining of discrete aerospace precision parts includes a base 10 and a 124mm five-axis milling CNC machining center vise positioning assembly 20, a 46mm five-axis milling CNC machining center vise positioning assembly 30, a reference plate positioning assembly 40 for electrical discharge machining (including electrical discharge forming machine tools and electrical discharge wire cutting machine tools), and an A63 taper shank positioning assembly 50 for turning machine tools, wherein: the base 10 is along a first direction ( Figure 1A boss 11 is provided at one end of the base 10 (in the X direction). A 100 taper shank positioning assembly 60 for turning machine tools is located in the center of the base 10. A three-way adjusting seat positioning assembly 70 and a quick-change auxiliary parts positioning assembly 80 are provided on the boss 11. A vise positioning assembly 20 for a 124mm five-axis milling CNC machining center is located on the end face of the base 10 away from the boss 11 in the first direction. The vise positioning assembly 20 is configured to position the vise of the 124mm five-axis milling CNC machining center. A vise positioning assembly 30 for a 46mm five-axis milling CNC machining center is located on the non-bore end face of the base 10. The vise positioning assembly 30 is configured to position the vise of the 46mm five-axis milling CNC machining center. An EDM reference plate positioning assembly 40 is located on the 4 The vise positioning assembly 30 of the 6mm five-axis milling CNC machining center is surrounded by an EDM reference plate positioning assembly 40, which is configured to position the EDM reference plate. An A63 taper shank positioning assembly 50 is located in the middle of the vise positioning assembly 40 of the 46mm five-axis milling CNC machining center and is configured to position the first taper shank. A 100 taper shank positioning assembly 60 is located between the end face of the base 10 and the boss 11 and is configured to position the 100 taper shank. A three-way adjusting seat positioning assembly 70 is located on the boss 11 and is configured to position the reference plate tooling. A quick-change auxiliary part positioning assembly 80 is located in the middle of the three-way adjusting seat positioning assembly 70 and is configured to position the quick-change auxiliary part.

[0019] The outer envelope of the general quick-change tooling is a cuboid, with the long side in the Y direction and the short side in the X direction.

[0020] Specifically, the base 10 is set in a cuboid shape, with a length, width and thickness of 300mm, 150mm and 37mm respectively, and the height and width of the boss 11 can be 3mm and 168mm respectively.

[0021] By integrating the 124mm five-axis milling CNC machining center vise positioning component 20, the 46mm five-axis milling CNC machining center vise positioning component 30, the EDM reference plate positioning component 40, the A63 taper shank positioning component 50, the 100 taper shank positioning component 60, the three-way adjustment seat positioning component 70, and the quick-change auxiliary parts positioning component 80 onto the base 10, rapid positioning and replacement of various quick-change fixtures can be achieved. This facilitates the unified transportation and management of various fixtures and their carried materials, thereby improving the automation level and efficiency of the production line.

[0022] The vise positioning structure 20 of the 124mm five-axis milling CNC machining center includes four first positioning holes 21. The four first positioning holes 21 are evenly distributed on the end face of the base 10 away from the boss 11 along the first direction, and the four first positioning holes 21 form a first rectangular positioning surface.

[0023] The 46mm five-axis milling CNC machining center vise positioning assembly 30 includes four second positioning holes 31. The four second positioning holes 31 are evenly distributed on the end face of the base 10 away from the boss 11 along the first direction. The four second positioning holes 31 form a second rectangular positioning surface, which is located inside the first rectangular positioning surface.

[0024] The EDM reference plate positioning assembly 40 includes two first positioning keys 41, one second positioning key 42, and one third positioning key 43. The two first positioning keys are aligned along a first direction ( Figure 1 The second positioning key 42 is distributed on both sides of the second rectangular positioning surface along the second direction (X direction). Figure 1 The positive direction of the Y direction is distributed on the side of the second rectangular positioning surface, and the third positioning key 43 is distributed on the side of the second rectangular positioning surface in the opposite direction of the second direction.

[0025] The A63 taper shank positioning assembly 50 includes a first taper shank positioning hole 51, which is formed on the base 10 and located at the center of the second rectangular positioning surface.

[0026] The 100 tapered shank positioning assembly 60 includes a second tapered shank positioning hole 61, which is located at the center of the base 10, between the end face of the base 10 away from the boss 11 along the first direction and the boss 11.

[0027] The three-way adjustment seat positioning assembly 70 includes two fourth positioning keys 71 and two fifth positioning keys 73. The three-way adjustment seat positioning assembly 70 is distributed at the four corners of the boss 11. The two fourth positioning keys 71 are distributed at one end of the boss 11 along the positive direction of the second direction, and the two fifth positioning keys 72 are distributed at one end of the boss 11 along the opposite direction of the second direction.

[0028] The quick-change auxiliary part positioning assembly 80 includes a quick-change auxiliary part positioning hole 81, which is formed on the boss 11 and located at the center of the three-way adjustment seat positioning assembly 70.

[0029] By designing corresponding positioning holes and positioning keys for various quick-change fixtures, when the quick-change fixture is placed on the base 10, the positioning holes or positioning keys cooperate with the corresponding geometric features on the quick-change fixture to fix the position of various quick-change fixtures.

[0030] An electronic tag 80 for identifying the base 10 is detachably mounted on one side of the base 10. The electronic tag 80 is a general-purpose RFID electronic tag 80.

[0031] As can be seen, by setting up RFID electronic tags 80 and scanning the electronic tags 80 with an RFID reader, the base 10 can be quickly identified, and the fixture and its processed materials can be tracked and the processing information of each material can be recorded, which facilitates rapid quality traceability. This demonstrates the compact layout and multifunctional integration of the base 10.

[0032] When the aforementioned general quick-change tooling device for flexible manufacturing workshops is in operation, if multiple materials are placed on the base 10 through different clamps, the robot can scan the RFID electronic tag 80 of the base 10 to read the clamps and material information carried by different bases 10, thereby realizing the real-time confirmation and management of the processing of multiple materials by the flexible warehousing system. At the same time, it facilitates the system to trace the quality of material processing, thereby improving the production efficiency and production quality of the flexible production line.

[0033] The contents not described in detail in this specification are common knowledge to those skilled in the art.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A universal quick-change tooling for automated machining of discrete aerospace precision parts, characterized in that, Includes a base (10) and a 124mm five-axis milling CNC machining center vise positioning assembly (20), a 46mm five-axis milling CNC machining center vise positioning assembly (30), a reference plate positioning assembly (40) for an electrical discharge machining machine tool, and an A63 taper shank positioning assembly (50) for a turning machine tool; A boss (11) is provided at one end of the base (10) along the first direction; a vise positioning assembly (20) for a 124mm five-axis milling CNC machining center is located on the end face of the base (10) away from the boss (11) along the first direction, and the vise positioning assembly (20) for a 124mm five-axis milling CNC machining center is configured to position the vise for a 124mm five-axis milling CNC machining center; a vise positioning assembly (30) for a 46mm five-axis milling CNC machining center is located on the non-boss end face of the base (10), and the vise positioning assembly (30) for a 46mm five-axis milling CNC machining center is located on the non-boss end face of the base (10). The vise positioning assembly (30) is configured to position the vise of the 46mm five-axis milling CNC machining center. The EDM reference plate positioning assembly (40) is located around the vise positioning assembly (30) of the 46mm five-axis milling CNC machining center. The EDM reference plate positioning assembly (40) is configured to position the EDM reference plate. The A63 taper shank positioning assembly (50) is located in the middle of the vise positioning assembly (40) of the 46mm five-axis milling CNC machining center. The A63 taper shank positioning assembly (50) is configured to position the first taper shank.

2. The universal quick-change tooling according to claim 1, characterized in that, The 100 taper shank positioning assembly (60) for turning machine tools is located in the center of the base 10. The boss (11) is provided with a three-way adjusting seat positioning assembly (70) and a quick-change auxiliary part positioning assembly (80). The 100 taper shank positioning assembly (60) is configured to position the 100 taper shank. The three-way adjusting seat positioning assembly (70) is provided on the boss (11) and is configured to position the reference piece tooling. The quick-change auxiliary part positioning assembly (80) is located in the middle of the three-way adjusting seat positioning assembly (70) and is configured to position the quick-change auxiliary part.

3. The universal quick-change tooling according to claim 1, characterized in that, The vise positioning structure (20) of the 124mm five-axis milling CNC machining center includes four first positioning holes (21). The four first positioning holes (21) are evenly distributed on the end face of the base (10) away from the boss (11) along the first direction. The four first positioning holes (21) form a first rectangular positioning surface.

4. The universal quick-change tooling according to claim 1, characterized in that, The 46mm five-axis milling CNC machining center vise positioning assembly (30) includes four second positioning holes (31). The four second positioning holes (31) are evenly distributed on the end face of the base (10) away from the boss (11) along the first direction. The four second positioning holes (31) form a second rectangular positioning surface, which is located inside the first rectangular positioning surface.

5. The universal quick-change tooling according to claim 1, characterized in that, The EDM reference plate positioning assembly (40) includes two first positioning keys (41), one second positioning key (42), and one third positioning key (43). The two first positioning keys are distributed on both sides of the second rectangular positioning surface along the first direction, the second positioning key (42) is distributed on the side of the second rectangular positioning surface along the positive direction of the second direction, and the third positioning key (43) is distributed on the side of the second rectangular positioning surface along the opposite direction of the second direction.

6. The universal quick-change tooling according to claim 1, characterized in that, The A63 taper shank positioning assembly (50) includes a first taper shank positioning hole (51), which is opened on the base (10) and located at the center of the second rectangular positioning surface.

7. The universal quick-change tooling according to claim 2, characterized in that, The 100 taper shank positioning assembly (60) includes a second taper shank positioning hole (61), which is located at the center of the base (10) at the end face of the base (10) away from the boss (11) along a first direction and between the boss (11) and the boss (11).

8. The universal quick-change tooling according to claim 2, characterized in that, The three-way adjustment seat positioning assembly (70) includes two fourth positioning keys (71) and two fifth positioning keys (73). The three-way adjustment seat positioning assembly (70) is distributed at the four corners of the boss (11). The two fourth positioning keys (71) are distributed at one end of the boss (11) along the positive direction of the second direction, and the two fifth positioning keys (72) are distributed at one end of the boss (11) along the opposite direction of the second direction.

9. The universal quick-change tooling according to claim 2, characterized in that, The quick-change auxiliary part positioning assembly (80) includes a quick-change auxiliary part positioning hole (81), which is formed on the boss (11) and located at the center of the three-way adjustment seat positioning assembly (70).

10. The universal quick-change tooling according to claim 1, characterized in that, An electronic tag (90) for identifying the base (10) is detachably installed on one side of the base (10); the electronic tag (90) is a general-purpose RFID electronic tag.

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