A device for rapid clamping of a machining cartridge part

Abstract

The application discloses a device for quickly clamping a machining case part, and relates to the technical field of machining equipment. The device comprises a base disc, a supporting disc, a pressing disc and a central shaft. The base disc, the supporting disc and the pressing disc are arranged on the central shaft. The machining case part is clamped between the base disc and the pressing disc. The supporting disc is arranged between the base disc and the pressing disc. A plurality of movable expansion blocks are arranged in a circumferential annular array on the supporting disc. The expansion blocks can be adjusted in position along the radial direction of the supporting disc to fit the inner profile of the machining case part. The device can be adaptively fitted to the special inner profile of the machining case part by changing the position of the expansion blocks, can expand and support the inner profile of the machining case part, and can stably clamp the machining case part.

Description

Technical Field

[0001] This application relates to the field of machining assembly technology, specifically to a device for quickly clamping and machining machine housing parts. Background Technology

[0002] The casing is a core component in aero engines that provides support and load-bearing capacity. It is mainly composed of casing walls, mounting edges, and reinforcing ribs. Aero engine casings are usually thin-walled rotary structures and are generally machined by turning and milling. Since the internal surfaces of casing parts are usually irregular cross-sections and not straight cylindrical sections, existing tooling and fixtures are difficult to adapt to the clamping of irregular inner wall surfaces in the machining and clamping process. Utility Model Content

[0003] The main objective of this application is to provide a device for quickly clamping and processing casing parts, which aims to solve the problem that existing tooling fixtures are difficult to adapt to the clamping of irregularly shaped inner wall surfaces of casing parts.

[0004] The technical solution adopted in this application is as follows: A device for quickly clamping and machining housing parts includes a base plate, a support plate, a pressure plate, and a central shaft. The base plate, support plate, and pressure plate are all disposed on the central shaft. The housing part is clamped between the base plate and the pressure plate. The support plate is disposed between the base plate and the pressure plate. The support plate has a plurality of movable tensioning blocks arranged in a circumferential annular array. The tensioning blocks are used to adjust their positions radially along the support plate to fit the inner surface of the housing part.

[0005] Furthermore, the tensioning block includes: A movable block is slidably disposed on the surface of the support plate along the radial direction, and the movable block is used to fit the inner surface of the casing part; A fixing block is fixed to the surface of the support plate, the fixing block being used to assemble the movable block onto the support plate; The radial adjusting bolt of the fixed block is threadedly connected, and the radial adjusting bolt is slidably connected to the movable block.

[0006] Furthermore, the movable block is provided with a clearance opening, and the fixed block is T-shaped and located inside the clearance opening, and is attached to the movable block.

[0007] Furthermore, the radial adjusting bolt passes through the movable block and extends from the clearance opening to connect with the fixed block, and a spring is fitted on the radial adjusting bolt.

[0008] Furthermore, the side of the movable block that contacts the casing part is an arc surface.

[0009] Furthermore, the surface of the base plate is provided with a stepped groove for placing the casing parts.

[0010] Furthermore, the surface of the base plate shown is provided with a plurality of pressure blocks arranged in a ring array outside the stop circular step groove.

[0011] Furthermore, a supporting frustum is provided between the two ends of the central shaft, and the supporting disc is installed on the supporting frustum by bolts.

[0012] Furthermore, the top of the central shaft is provided with a stepped shaft end, and the pressure plate is inserted through the stepped shaft end and locked by a washer and a nut.

[0013] Furthermore, a lifting ring is provided at the top end of the central shaft.

[0014] Compared with the prior art, the beneficial effects of this application are: This application discloses a device for quickly clamping and processing casing parts, comprising a base plate, a support plate, a pressure plate, and a central shaft. The base plate, support plate, and pressure plate are all disposed on the central shaft. The casing part is clamped between the base plate and the pressure plate. The support plate is disposed between the base plate and the pressure plate. The support plate has a plurality of movable tensioning blocks arranged in a circumferential annular array. The tensioning blocks can be adjusted radially along the support plate to conform to the inner surface of the casing part. In this technical solution, by placing the casing part on the base plate and pressing it with the pressure plate, the support plate is located inside the casing part. With the tensioning blocks whose position can be adjusted radially along the support plate, the positional change of the tensioning blocks adapts to the irregular inner surface of the casing part, providing tension support for the internal surface of the casing part, thereby achieving stable clamping of the casing part. Attached Figure Description

[0015] Figure 1 A schematic diagram of the apparatus for quick clamping and processing machine housing parts provided in the embodiments of this application from one perspective; Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Explanation of the labels in the attached drawings: 1-Base plate, 101-Stop circular step groove, 102-Pressure block, 2-Support plate, 3-Pressure plate, 4-Tensioning block, 401-Moving block, 402-Fixed block, 403-Radial adjusting bolt, 404-Spring, 5-Lifting ring. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0021] See attached document Figure 1This application provides a device for quickly clamping and processing casing parts, including a base plate 1, a support plate 2, a pressure plate, and a central shaft. The base plate 1, support plate 2, and pressure plate are sequentially mounted on the central shaft from bottom to top, and the central shaft is located at the center of each of the base plate 1, support plate 2, and pressure plate. The casing part is clamped between the base plate 1 and the pressure plate. The base plate 1 supports the casing part, and the pressure plate presses the casing part firmly. The support plate 2 is located inside the casing part, and the support plate 2 has a plurality of movable tensioning blocks 4 arranged in a circumferential annular array. The tensioning blocks 4 can be adjusted radially along the support plate 2 to conform to the inner surface of the casing part.

[0022] Since aircraft engine casings are typically thin-walled rotary structures, their internal surfaces are usually irregular cross-sections and not straight cylindrical sections. When using milling and turning, existing tooling fixtures are difficult to adapt to clamping irregular inner wall surfaces.

[0023] To address the aforementioned technical issues, in this embodiment, the casing parts are placed on the base plate 1 and pressed by the pressure plate. The support plate 2 is located inside the casing parts and is equipped with a tensioning block 4 whose position can be adjusted radially along the support plate 2. The positional change of the tensioning block 4 adapts to the irregular inner surface of the casing parts, thereby providing tension support for the internal surface of the casing parts and achieving stable clamping of the casing parts.

[0024] In a preferred embodiment, such as Figure 1 As shown, the surface of the base plate 1 is provided with a stop circular stepped groove 101, the diameter of which is adapted to the stop circular diameter of the casing parts.

[0025] As can be imagined, in the above embodiments, when clamping the casing parts, the casing parts are placed into the stop circular step groove 101, thereby positioning the casing parts and facilitating quick alignment of the clamping position of the casing parts.

[0026] In a preferred embodiment, such as Figure 1 As shown, a number of pressure blocks 102 are arranged in a ring array on the surface of the base plate 1 outside the circular stepped groove 101. The pressure blocks 102 are conventional structures, usually consisting of long strip-shaped iron blocks that are bolted to the base plate 1.

[0027] As can be imagined, in the above embodiments, when clamping the housing parts, after the housing parts are placed into the stop circular step groove 101, they are pressed by the circumferentially arranged pressure blocks 102, thereby ensuring the stability of the housing parts during the milling process.

[0028] In a preferred embodiment, such as Figure 1As shown, a supporting frustum is integrally formed in the middle of the central shaft. The diameter of the supporting frustum is significantly larger than the diameter of the central shaft, but smaller than the diameter of the supporting disk 2. The supporting disk 2 is fitted onto the central shaft with a through hole in the center and is supported by the supporting frustum at the bottom of the supporting disk 2. At the same time, the supporting disk 2 is fixed to the supporting frustum by several fixing bolts.

[0029] In the above embodiments, it is easy to understand that by setting the support plate 2 to be fixed by bolts, the support plate 2 can be disassembled and replaced with support plates 2 of different diameters to accommodate casing parts with different inner surface diameters of the same stop circle. Furthermore, the support plate 2 is designed with several slotted holes to reduce its weight and facilitate easy handling and replacement.

[0030] In a preferred implementation, such as Figure 1 and Figure 2 As shown, the tensioning block 4 is circumferentially disposed on the surface of the support plate 2. Specifically, the tensioning block 4 includes a movable block 401, a fixed block 402, and an adjusting bolt. The movable block 401 is radially slidable along the support plate 2 to fit the inner surface of the casing parts. The fixed block 402 is fixed to the casing parts by bolts and fits against the surface of the movable block 401, used to assemble the movable block 401 onto the support plate 2. The fixed block 402 has a bolt through hole radially, and the movable block 401 has a smooth through hole radially. The radial adjusting bolt 403 passes through the smooth through hole and is slidably connected to the movable block 401, and is screwed into the bolt through hole to be threadedly connected to the fixed block 402.

[0031] As can be imagined, in the above embodiment, after the casing part is placed into the stop circular step groove 101 and pressed by the pressure block 102, the adjusting bolt is continuously screwed into the threaded through hole by turning the adjusting bolt, and the movable block 401 is pushed outward, thereby adjusting the radial position of the movable block 401 to adapt to the irregular inner surface.

[0032] In a preferred implementation, in order to limit and guide the movement of the movable block 401, such as Figure 2 As shown, the movable block 401 is provided with a clearance opening, and the fixed block 402 is T-shaped and located inside the clearance opening, and is attached to the movable block 401.

[0033] As can be imagined, in the above embodiment, the T-shaped fixing block 402 fits against the clearance opening to form a limit, while the fixing block 402 is fixed on the support plate 2 and keeps in contact with the movable block 401, thereby limiting and guiding the movement of the movable block 401. After the radial position of the movable block 401 is adjusted, the position can be locked by the radial adjusting bolt 403 to ensure that the movable block 401 keeps in contact with the inner surface of the casing parts.

[0034] In a preferred embodiment, such as Figure 2As shown, the radial adjusting bolt 403 passes through the movable block 401 and extends from the clearance opening to connect with the fixed block 402. A spring 404 is fitted on the radial adjusting bolt 403.

[0035] As can be imagined, in the above embodiment, by mounting a spring 404 on the radial adjusting bolt 403, when it is necessary to remove the casing parts from this device, by screwing the radial adjusting bolt 403 toward the center side of the support plate 2, the movable block 401 is reset toward the center side of the support plate 2 under the action of the spring 404, thereby loosening the inner surface of the casing parts.

[0036] Of course, in the above embodiment, the side of the movable block 401 that is in contact with the casing part is an arc surface, so that the movable block 401 can better maintain contact with the inner surface of the casing part, thereby increasing the contact area and improving the friction between the movable block 401 and the casing part, so as to more stably support and clamp the casing part.

[0037] In a preferred embodiment, such as Figure 1 As shown, the top of the central shaft is provided with a stepped shaft end, and the pressure plate is inserted through the stepped shaft end and locked by a washer and nut.

[0038] As can be imagined, in this embodiment, the pressure plate is set as a detachable structure, which makes it convenient to place the casing parts from top to bottom on the support plate 2, then fix the pressure block 102, adjust the position of the tension block 4, and finally install the pressure plate 3 to press the casing parts.

[0039] Of course, in the above embodiment, a lifting ring 5 is provided at the top end of the central shaft, which facilitates the hoisting of the device onto the machine tool table to clamp parts.

[0040] Based on the above, the present application provides an apparatus for quickly clamping and processing machine housing parts, the method of which is as follows: First, remove the clamping plate 3 from the central shaft; Next, the casing parts are placed from top to bottom into the stepped groove 101 of the base plate 1, and pressed down by the pressure block 102; Then, by adjusting the position of the tensioning block 4, the movable block 401 is kept in contact with the inner surface of the casing parts; Finally, the clamping plate 3 is reassembled onto the central shaft to clamp the top of the casing parts, thus completing the clamping of the casing parts.

[0041] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for quickly clamping and machining machine housing parts, characterized in that, The device includes a base plate, a support plate, a pressure plate, and a central shaft. The base plate, support plate, and pressure plate are all mounted on the central shaft. The casing part is clamped between the base plate and the pressure plate. The support plate is located between the base plate and the pressure plate. The support plate has a plurality of movable tensioning blocks arranged in a circumferential annular array. The tensioning blocks are used to adjust their positions radially along the support plate to fit the inner surface of the casing part.

2. The apparatus for rapid clamping and machining of housing parts according to claim 1, characterized in that, The tensioning block includes: A movable block is slidably disposed on the surface of the support disk along the radial direction of the support disk, and the movable block is used to fit the inner surface of the casing part; A fixing block is fixed to the surface of the support plate, the fixing block being used to assemble the movable block onto the support plate; The radial adjusting bolt of the fixed block is threadedly connected, and the radial adjusting bolt is slidably connected to the movable block.

3. The apparatus for rapid clamping and machining of housing parts according to claim 2, characterized in that, The movable block is provided with a clearance opening, and the fixed block is T-shaped and located inside the clearance opening, and is attached to the movable block.

4. The apparatus for rapid clamping and machining of housing parts according to claim 3, characterized in that, The radial adjusting bolt passes through the movable block and extends from the clearance opening to connect with the fixed block, and a spring is fitted on the radial adjusting bolt.

5. The apparatus for rapid clamping and machining of housing parts according to claim 2, characterized in that, The side of the movable block that contacts the casing part is an arc surface.

6. The apparatus for rapid clamping and machining of housing parts according to claim 1, characterized in that, The surface of the base plate is provided with a stepped groove for placing the casing parts.

7. The apparatus for rapid clamping and machining of housing parts according to claim 6, characterized in that, The surface of the base plate shown is provided with several pressure blocks arranged in a ring array outside the circular stepped groove of the stop.

8. The apparatus for rapid clamping and machining of housing parts according to claim 1, characterized in that, A supporting frustum is provided between the two ends of the central shaft, and the supporting disc is installed on the supporting frustum by bolts.

9. The apparatus for rapid clamping and machining of housing parts according to claim 1, characterized in that, The top of the central shaft is provided with a stepped shaft end, and the pressure plate is inserted through the stepped shaft end and locked by a washer and nut.

10. The apparatus for rapid clamping and machining of housing parts according to claim 1, characterized in that, A lifting ring is provided at the top end of the central shaft.

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