Four-axis machining fixing tool for aero-engine adjusting piece
By using a dispersed support projection structure and compression device in the four-axis machining fixing tooling of the aircraft engine adjustment sheet, the problem of the impact of the surface undulation of the adjustment sheet is solved, and a firmer fixation and higher machining accuracy are achieved.
Patent Information
- Application Number
- CN202420754158.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-12
Smart Images
Figure CN222243648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a processing fixing tool, in particular to a four-axis processing fixing tool for an aero-engine regulating plate. Background Art
[0002] The general structure of the aircraft engine regulating plate is shown in the attached Figure 4 The longitudinal section is shown in the attached Figure 2 As shown in the middle bid number 8, its lower side is in the shape of a pointed roof. After the aircraft engine adjustment plate is cast, it is necessary to use four-axis equipment to drill, chamfer, groove inside and outside, and the shape of the part connection to ensure the requirements of the relevant dimensions and position of the parts. Therefore, when performing four-axis machining operations, the adjustment plate needs to be fixed on the fixed tooling first, and then placed in the four-axis machining equipment for machining.
[0003] The current fixing tooling is mainly a flat plate with a fixing clamping device and a limiting part on it. In order to provide better support for the pointed roof-shaped area at the bottom of the adjusting piece, a pointed roof-shaped ridge is currently provided on the flat plate in the area where the adjusting piece is placed, so that it fits better with the bottom of the adjusting piece and improves the fixing effect.
[0004] However, since the surface of the newly cast adjustment piece is not smooth and has certain undulations, when the adjustment piece is placed on the raised area, the fit is not high and the adjustment piece is prone to shaking, which reduces the fixing effect. In severe cases, the adjustment piece cannot even be accurately positioned, resulting in reduced processing accuracy.
[0005] To this end, we have improved the fixed tooling for adjusting plate processing. Utility Model Content
[0006] In order to solve the above technical problems, the utility model provides a four-axis machining fixing tool for an aircraft engine adjustment plate. The utility model has the characteristics of good supporting effect, less influence of the surface fluctuation of the adjustment plate during fixing, more firm fixing, and higher machining accuracy; in addition, the structure is simple, the design is reasonable, and it is easy to use.
[0007] The technical solution of this utility model:
[0008] A four-axis machining fixture for an aero-engine regulating plate comprises a fixed bottom plate, the middle of which is a placement area for the regulating plate, in which a plurality of supporting protrusions matching the shape of the bottom of the regulating plate are distributed; and a plurality of clamping devices are arranged at the periphery of the placement area.
[0009] This solution uses dispersed support protrusions to replace the traditional overall ridge structure. While completing the support for the bottom of the adjustment piece, it also greatly reduces the influence of the fluctuation of the adjustment piece surface. It has the advantages of good support effect, little influence by the fluctuation of the adjustment piece surface, more firm fixation, and higher processing accuracy. It also has a simple structure, reasonable design, and strong practicality.
[0010] Preferably, in the aforementioned aircraft engine adjustment plate four-axis machining fixture, the support protrusions are provided in two rows, arranged on both sides of the length direction of the placement area.
[0011] This solution provides two rows of support protrusions and arranges them on both sides of the length direction of the placement area. When used in conjunction with the clamping device, the fixing effect is better and the design is more reasonable.
[0012] Preferably, in the aforementioned aircraft engine adjustment plate four-axis machining fixture, the supporting protrusion is in the shape of a sloped flat plate, wherein one side close to the edge of the placement area has a lower height and the other side has a higher height.
[0013] Preferably, in the aforementioned aircraft engine adjustment plate four-axis machining fixture, the angle between the slope surface of the supporting protrusion and the horizontal plane is 3-5°.
[0014] This solution, by setting the supporting protrusion to be a sloped flat plate shape, can achieve support for the bottom of the adjustment piece while also increasing the supporting area to a certain extent and improving the fixing effect.
[0015] Preferably, in the aforementioned aircraft engine adjustment piece four-axis machining fixture, the placement area is a sunken structure with a sinking depth of 1-3 mm, and the shape and size of the placement area are consistent with the shape and size of the adjustment piece.
[0016] This solution can quickly realize the positioning of the adjustment piece by setting the placement area as a sunken structure, and the operation is more convenient.
[0017] Preferably, in the aforementioned four-axis machining fixture for the aircraft engine adjustment plate, a fixed limit block is provided at the edge of the placement area, and the front end of the fixed limit block extends into the placement area.
[0018] This solution provides a fixed limit block, which can not only quickly position the adjustment piece, but also perform preliminary fixation, making operation easier.
[0019] Preferably, in the aforementioned aircraft engine adjustment plate four-axis machining fixing tooling, the clamping device includes a pressing plate, a strip hole is provided in the middle of the pressing plate, an internal threaded hole is provided on the fixed bottom plate below the strip hole, and a fastening screw is threadedly connected to the internal threaded hole; a threaded through hole is provided on the rear side of the pressing plate, and a fulcrum screw is threadedly connected to the internal thread of the threaded through hole.
[0020] The clamping device of this solution has a simple structure and is easy to use.
[0021] Preferably, in the aforementioned aircraft engine adjustment plate four-axis machining fixture, the edge of the fixed base plate is provided with a first undercut groove and a second undercut groove.
[0022] Beneficial effects of the utility model:
[0023] The utility model replaces the traditional integral ridge structure with dispersed support protrusions, and while completing the support for the bottom of the adjustment piece, it also greatly reduces the influence of the fluctuation of the adjustment piece surface, and has the advantages of good support effect, small influence of the fluctuation of the adjustment piece surface, more firm fixation, and higher processing accuracy. It also has a simple structure, reasonable design, and strong practicality.
[0024] The utility model provides two rows of supporting protrusions, which are arranged on both sides of the length direction of the placement area. When the utility model cooperates with the pressing device, the fixing effect is better and the design is more reasonable.
[0025] The utility model arranges the supporting protrusion in a sloped flat plate shape, thereby achieving support for the bottom of the adjusting piece and increasing the supporting area to a certain extent, thereby improving the fixing effect.
[0026] The utility model can quickly realize the positioning of the adjustment piece by arranging the placement area as a sinking structure, and the operation is more convenient.
[0027] The utility model provides a fixed limiting block, which can not only quickly position the adjusting piece but also perform preliminary fixing, thereby facilitating operation.
[0028] The pressing device of the utility model has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Attached Figure 1 It is a structural schematic diagram of the utility model;
[0030] Attached Figure 2 This is a longitudinal cross-sectional view of the utility model after the adjustment piece is installed;
[0031] Attached Figure 3 It is a partial schematic diagram of the utility model;
[0032] Attached Figure 4 It is a schematic diagram of the structure of the regulating plate.
[0033] Explanation of the accompanying drawings: 1-fixed base plate, 2-placing area, 3-support protrusion, 4-clamping device, 5-fixed limit block, 6-first back-knife groove, 7-second back-knife groove, 8-adjusting plate, 41-pressing plate, 42-bar hole, 43-inner threaded hole, 44-fastening screw, 45-threaded through hole, 81-hole position No. 1, 82-hole position No. 2. DETAILED DESCRIPTION
[0034] The present invention is further described below in conjunction with the embodiments, but is not intended to be a basis for limiting the present invention.
[0035] Embodiments of the present utility model
[0036] A four-axis machining fixture for an aircraft engine adjustment plate, as shown in the attached Figure 1-3 As shown, it includes a fixed base plate 1, the middle part of the fixed base plate 1 is a placement area 2 for the adjustment plate, and a plurality of supporting protrusions 3 matching the shape of the bottom of the adjustment plate are distributed in the placement area 2; a plurality of clamping devices 4 are arranged on the periphery of the placement area 2.
[0037] When this embodiment is used, first remove the clamping device 4 from the placement area 2, place the adjustment plate in the placement area 2, make the supporting protrusion 3 below contact the bottom of the adjustment plate evenly without shaking, and then press the clamping device 4 onto the adjustment plate to fix it.
[0038] Further implementation examples include Figure 1-3 As shown, the support protrusions 3 are arranged in two rows, arranged on both sides of the length direction of the placement area 2. In this embodiment, there are four support protrusions 3 in each row, forming a large support area, but the influence of the fluctuation of the bottom plane of the adjustment piece is small.
[0039] Further implementation examples include Figure 1-3 As shown, the supporting protrusion 3 is in the shape of a sloped flat plate, wherein one side close to the edge of the placement area 2 is lower in height, and the other side is higher in height.
[0040] The supporting protrusion 3 in this embodiment is in the shape of a flat plate. Compared with the dot-shaped protrusion, this structure has a larger contact area, a better supporting effect, and a better fixing effect when cooperated with the clamping device 4.
[0041] Further implementation examples include Figure 1-3 As shown, the angle between the slope of the supporting protrusion 3 and the horizontal plane is 3-5°, and the specific angle must match the inclination angle of the ground of the adjustment plate.
[0042] Further implementation examples include Figure 1-3 As shown, the placement area 2 is a sunken structure with a sinking depth of 1-3 mm. The shape and size of the placement area 2 are consistent with those of the adjustment sheet.
[0043] When placing the adjustment piece, it can be positioned quickly by directly placing it in the sunken placement area 2, and the sunken structure can also play a certain limiting role to improve the fixing effect.
[0044] Further implementation examples include Figure 1-3As shown, a fixed stopper 5 is provided at the edge of the placement area 2, and the front end of the fixed stopper 5 extends into the placement area 2. The specific number of fixed stopper 5 is 1, and the position is in the middle of the adjustment piece, and there is a certain height between the lower side of the front end and the ground of the placement area 2, so that the edge area of the adjustment piece can be inserted into the space below, thereby completing rapid limiting and preliminary fixing.
[0045] Further implementation examples include Figure 1-3 As shown, the clamping device 4 includes a pressing plate 41, a strip hole 42 is provided in the middle of the pressing plate 41, an internal threaded hole 43 is provided on the fixed base plate 1 below the strip hole 42, and a fastening screw 44 is threadedly connected to the internal threaded hole 43; a threaded through hole 45 is provided on the rear side of the pressing plate 41, and a fulcrum screw 45 is threadedly connected to the internal threaded through hole 45.
[0046] When the clamping device 4 of this embodiment is in use, the fastening screw 44 is first loosened, and after the adjusting piece is placed and positioned, the front end of the pressing plate 41 is pressed onto the adjusting piece, and then the fastening screw 44 is tightened. Under the downward pressure of the fastening screw 44, the pressing plate 41 is driven to press the adjusting piece. When the surface height of the adjusting piece in this area is relatively high, the height of the pressing plate 41 can be adjusted by rotating the fulcrum screw 45 so that it can be kept as horizontal as possible in the clamped state, thereby improving the fixing effect.
[0047] Further implementation examples include Figure 1-3 As shown, the edge of the fixed base plate 1 is provided with a first undercut 6 and a second undercut 7. The first undercut 6 and the second undercut 7 are used to operate the tool when processing the first hole position 81 and the second hole position 82.
[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and the utility model of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A four-axis machining fixture for an aircraft engine adjustment plate, characterized in that: It comprises a fixed bottom plate (1), the middle part of which is a placement area (2) for the adjustment plate, and a plurality of supporting protrusions (3) matching the shape of the bottom of the adjustment plate are distributed in the placement area (2); a plurality of pressing devices (4) are arranged on the periphery of the placement area (2); The supporting protrusion (3) is in the shape of a sloped flat plate, wherein one side close to the edge of the placement area (2) is lower in height and the other side is higher in height; The clamping device (4) comprises a pressing plate (41), a strip hole (42) is provided in the middle of the pressing plate (41), an internal threaded hole (43) is provided on the fixed base plate (1) below the strip hole (42), and a fastening screw (44) is threadedly connected to the internal threaded hole (43); a threaded through hole (45) is provided on the rear side of the pressing plate (41), and a fulcrum screw (46) is threadedly connected to the internal threaded through hole (45).
2. The four-axis machining fixture for the aircraft engine adjustment piece according to claim 1 is characterized in that: The supporting protrusions (3) are arranged in two rows, arranged on both sides of the placement area (2) in the length direction.
3. The four-axis machining fixture for the aircraft engine adjustment piece according to claim 1 is characterized in that: The angle between the slope surface of the supporting protrusion (3) and the horizontal plane is 3-5°.
4. The four-axis machining fixture for the aircraft engine adjustment plate according to claim 1 is characterized in that: The placement area (2) is a sunken structure with a sunken depth of 1-3 mm. The shape and size of the placement area (2) are consistent with the shape and size of the adjustment piece.
5. The four-axis machining fixture for the aircraft engine adjustment piece according to claim 4 is characterized in that: A fixed limiting block (5) is provided at the edge of the placement area (2), and the front end of the fixed limiting block (5) extends into the placement area (2).
6. The four-axis machining fixture for the aircraft engine adjustment plate according to claim 1, characterized in that: The edge of the fixed bottom plate (1) is provided with a first undercut groove (6) and a second undercut groove (7).