A CMC box body processing tool and a processing method thereof

Abstract

This invention discloses a CMC enclosure processing fixture and its processing method, relating to the field of enclosure processing technology. It includes a base plate, a column fixedly connected to the top of the base plate, a lifting assembly sleeved on the outer surface of the column, and a locking mechanism with switchable limiting states on the side of the lifting assembly. The locking mechanism can switch between a snap-fit ​​state and a locked state. In the snap-fit ​​state, the lifting assembly can move vertically along the column and be temporarily positioned. In the locked state, the lifting assembly can be locked and limited. A fixing component is disposed on one side of the lifting assembly, and an installation component is disposed between the fixing component and the lifting assembly. A positioning component is disposed below the fixing component. This invention utilizes the different limiting states of the locking mechanism to facilitate the rapid movement of the fixing component by the lifting assembly, achieving a rapid adjustment of the fixing component's position, making overall adjustment more convenient. Simultaneously, the pressure on the fixing component is borne by the lifting assembly as a whole, resulting in more even force distribution.

Description

Technical Field

[0001] This invention relates to the field of enclosure processing technology, and in particular to a CMC enclosure processing fixture and processing method thereof. Background Technology

[0002] CMC enclosures generally refer to enclosure-type structural components made of ceramic matrix composite materials (CMC), which are mostly used in high-end equipment such as aviation and aerospace. They are characterized by high temperature resistance, lightweight, high strength, and corrosion resistance, but the material is hard and brittle, prone to chipping, and mostly has thin-walled complex structures, requiring extremely high clamping force, rigidity, and stability during processing.

[0003] Currently, during the processing of the enclosure, it is generally necessary to use processing fixtures to fix the enclosure. The common processing fixtures in existing technology use multiple independent adjustable screws, which drive the pressure blocks to move, and then use the pressure blocks to fix the enclosure.

[0004] However, the method of using a screw to drive the pressure block to move, and then using the pressure block to fix the box, has the following drawbacks: Since each screw operates independently, the pressure block moves by rotating the screw. This means that when adjusting the height, each screw needs to be adjusted one by one, which is inconvenient and the overall positioning is relatively cumbersome. Because the box is fixed by pressing it with individual pressure blocks, the consistency is poor. Moreover, each pressure block is subjected to force alone, which may cause uneven force distribution, resulting in stress concentration in the box and damage to the box. To address this, a CMC enclosure machining tooling and machining method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a CMC housing machining tooling and machining method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a CMC housing machining fixture, comprising: substrate; A column, which is fixedly connected to the top of the base plate; A lifting assembly, wherein the lifting assembly is sleeved on the outer surface of the column; The lifting assembly is provided with a locking mechanism that can switch between a locking state and a locking state. In the locking state, the lifting assembly can move vertically along the column and be temporarily positioned. In the locking state, the lifting assembly can be locked and limited. A fixing component is provided on one side of the lifting component. An installation component is provided between the fixing component and the lifting component. A positioning component is provided below the fixing component, and the positioning component positions the box synchronously as the lifting component moves.

[0007] Preferably, the locking mechanism includes: A fixing sleeve is fixedly connected to the outer surface of the lifting assembly; A locking component is disposed between the fixing sleeve and the column; An elastic component, the elastic component being located at the end of the locking component; A guide and limit component is provided on one side of the locking component. The guide and limit component is used to guide the locking component to move and rotate along the fixed sleeve, thereby switching the locking component between the latching state and the locking state.

[0008] Preferably, the locking component includes: A locking block is inserted into one end of a fixed sleeve, and a groove is provided in the middle of one end of the locking block; The outer surface of the column is provided with multiple locking grooves. A top block is fixedly connected to the center of the locking groove, and the width of the top block is adapted to the width of the groove.

[0009] Preferably, the locking block includes: A connecting block is fixedly connected to the end of the elastic component; The positioning block is fixedly connected to one side of the middle of the connecting round block. Both sides of the positioning block are fixedly connected to arc-shaped blocks. The thickness of the top block is greater than the depth of the connecting round block when inserted into the locking groove. The two sides of the positioning block are arc-shaped, and the arc-shaped contour matches the arc-shaped contour of the connecting round block.

[0010] Preferably, the guide limiting component includes: A limiting slider is fixedly connected to one side of a locking block, and a protrusion is fixedly connected to one end of the limiting slider; The guide groove is formed on the outer surface of the fixed sleeve.

[0011] Preferably, the guide groove includes: A sliding groove is formed on one side of the fixed sleeve; A limiting groove is provided on the other side of the fixing sleeve; The through groove is located between the end of the slide groove and the middle of the limiting groove.

[0012] Preferably, the elastic component includes: A connecting cap, which is threaded into the inside of one end of a fixed sleeve; A movable rod is fixedly connected to the end face of the locking assembly. A return spring is sleeved on the outer surface of the movable rod, and one end of the movable rod passes through the interior of the connecting cap. The lifting assembly includes a lifting sleeve fitted onto the outer surface of the column and a connecting pipe fixedly connected between two adjacent lifting sleeves.

[0013] Preferably, the fixing component includes: A fixing plate is disposed in the middle of the lifting assembly, and a pressing screw is threadedly connected to the middle of the fixing plate; An extrusion plate is rotatably connected to the end of an extrusion screw, and a limit rod is fixedly connected to the top of the extrusion plate, with one end of the limit rod penetrating through a fixed plate. The installation components include: A through hole is formed on the outer surface of the fixing plate. One end of the through hole has a mounting groove, and the top of the through hole has a slot. The mounting threaded column is fixedly connected to the outer surface of the middle part of the lifting assembly. The outer surface of the mounting threaded column is threadedly connected to a mounting block. One end of the mounting block is fixedly connected to an outer ring. The outer contour of the mounting block and the inner contour of the mounting groove are set to be conical.

[0014] Preferably, the positioning component includes: A positioning plate is fixedly connected to the bottom of a fixing assembly, and a guide plate is fixedly connected to the bottom of the positioning plate. The guide plate has an arc-shaped cross-sectional profile. A vertical groove is formed at the top of the positioning plate; A movable block is slidably connected inside a vertical groove, and a movable plate is fixedly connected to one end of the movable block.

[0015] Secondly, the present invention provides a processing method for a CMC enclosure machining fixture, which is implemented as described above with respect to the CMC enclosure machining fixture. The specific steps of the processing method are as follows: Step 1: Move the protrusion along the guide groove until the groove separates from the top block, then rotate the protrusion 90 degrees to change the locking block from the original locked state with the locking groove to the snap-fit ​​state. Step 2: Then move the lifting component along the column so that the positioning component is close to the box. Use the positioning component to position the box so that the clamping surface of the box is aligned with the fixed component. Observe whether the movable plate and its movable block have an upward movement. If an upward movement occurs, it means that the positioning of the box is complete. Step 3: Based on the position of the protrusion, indicate whether the locking block is engaged. If the protrusion is close to the column, it means that it is engaged. Otherwise, it means that it is not engaged. Then, reset the protrusion along the guide groove and reset the locking block under the force of the elastic component until the groove is inserted into the top block, thus locking the lifting component. Step 4: By rotating the extrusion screw, the extrusion plate moves downward, thereby using the extrusion plate to press the movable plate, thus completing the fixation of the box.

[0016] The technical effects and advantages of this invention are as follows: This invention changes the locking mechanism's locking state of the lifting component to a latching state, and then moves the lifting component along the column, causing the lifting component to drive the fixed component to move in the vertical direction. When the position of the fixed component is adjusted, the latching limit of the locking mechanism on the lifting component can also be used to determine the position of the lifting component. Then, the latching state of the locking mechanism on the lifting component is changed to a locking state, thereby locking and limiting the lifting component. Then, the fixed component is used to fix the box placed on the base plate. This design utilizes the different limiting states of the locking mechanism to facilitate the lifting component to quickly drive the fixed component to move, achieving the effect of quickly adjusting the position of the fixed component. The overall adjustment is more convenient, and the pressure on the fixed component is borne by the lifting component as a whole, resulting in a more uniform overall force distribution. This invention utilizes a guide and limiting component to allow the locking component to move along the fixed sleeve and rotate, thereby switching between a latching state and a locked state. In the locked state, the locking component, in conjunction with the elastic component, can completely lock the lifting component, thus facilitating it to bear the pressure of the fixed component later. In the latching state, the locking component, in conjunction with the elastic component, can facilitate the temporary positioning of the lifting component when it moves along the column, achieving both convenient up-and-down movement of the lifting component and convenient temporary positioning of the lifting component. Moreover, the guide and limiting component not only facilitates the limiting and guiding of the locking component, but also indicates the locking status of the locking component, thus facilitating the lifting component to drive the fixed component to rise and fall. This invention uses a lifting component to move a fixed component, which in turn moves a positioning component. A guide plate contacts the edge of the housing, gradually correcting the housing's position until it reaches the positioning plate. As the positioning plate moves along the housing, a movable plate contacts the top of the housing, causing the T-shaped movable block to move upwards along the vertical groove. Thus, during the movement of the fixed component by the lifting component, the positioning component simultaneously aligns the clamping surface of the housing with the movable plate and its fixed component, facilitating accurate downward pressing and fixing by the fixed component. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at point A in the middle; Figure 3 This is a schematic diagram of the locking component structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the locking block of the present invention; Figure 5 This is a schematic diagram of the fixed component structure of the present invention; Figure 6 This is a schematic diagram of the guide groove structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the locking groove of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning plate of the present invention.

[0018] In the attached diagram: 1. Base plate; 2. Column; 3. Lifting assembly; 301. Lifting sleeve; 302. Connecting pipe; 4. Fixing sleeve; 5. Locking assembly; 501. Locking block; 5011. Connecting round block; 5012. Positioning block; 5013. Arc-shaped block; 502. Locking round groove; 503. Top block; 504. Groove; 6. Elastic assembly; 601. Connecting cap; 602. Movable rod; 603. Return spring; 7. Guide and limit assembly; 701. Limiting slider; 702. Protrusion; 703. Guide. 7031, groove; 7032, through groove; 7033, limiting groove; 8, fixing assembly; 801, fixing plate; 802, extrusion screw; 803, limiting rod; 804, extrusion plate; 9, mounting assembly; 901, through hole; 902, mounting groove; 903, mounting threaded post; 904, mounting block; 905, outer ring; 906, slot; 10, positioning assembly; 1001, positioning plate; 1002, guide plate; 1003, vertical groove; 1004, movable block; 1005, movable plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides, for example Figures 1-8The image shows a CMC housing machining fixture.

[0021] Example 1: Includes a base plate 1, a column 2 fixedly connected to the top of the base plate 1, a lifting component 3 sleeved on the outer surface of the column 2, a locking mechanism disposed on the side of the lifting component 3, a fixing component 8 disposed on one side of the lifting component 3, and an installation component 9 disposed between the fixing component 8 and the lifting component 3; by changing the locking state of the locking mechanism on the lifting component 3 to a snap-fit ​​state, and then moving the lifting component 3 along the column 2, the lifting component 3 drives the fixing component 8 to move in the vertical direction. When the position of the fixing component 8 is adjusted, the locking mechanism can also be used to limit the snap-fit ​​of the lifting component 3 to determine the position of the lifting component 3. Then, the snap-fit ​​state of the locking mechanism on the lifting component 3 is changed to a locking state to lock and limit the lifting component 3. Then, the fixing component 8 is used to fix the box placed on the base plate 1. This design utilizes the different limiting states of the locking mechanism to facilitate the lifting component 3 to quickly drive the fixing component 8 to move, achieving the effect of quickly adjusting the position of the fixing component 8. The overall adjustment is more convenient, and the pressure on the fixing component 8 is borne by the lifting component 3 as a whole, resulting in a more uniform overall force distribution.

[0022] Furthermore, the lifting assembly 3 includes a lifting sleeve 301 sleeved on the outer surface of the column 2 and a connecting pipe 302 fixedly connected between two adjacent lifting sleeves 301; by connecting the two adjacent lifting sleeves 301 with the connecting pipe 302, and then moving the lifting sleeve 301 vertically along the column 2, the purpose of driving the fixed assembly 8 to move quickly is achieved, which improves the convenience of adjustment and makes the overall force more uniform.

[0023] The number of columns 2 is set to four, and the number of lifting sleeves 301 is also set to four, so that the entire lifting assembly 3 is frame-shaped.

[0024] Furthermore, the locking mechanism includes a fixed sleeve 4, which is fixedly connected to the outer surface of the lifting assembly 3. The locking assembly 5 is disposed between the fixed sleeve 4 and the column 2. The elastic component 6 is located at the end of the locking assembly 5, and the guide limiting component 7 is disposed on one side of the locking assembly 5. By utilizing the guide limiting component 7, the locking assembly 5 can move along the fixed sleeve 4, allowing the locking assembly 5 to rotate, thereby switching between the latching state and the locking state of the locking assembly 5. In the locking state, the locking assembly 5 cooperates with the elastic component 6 to completely lock the lifting assembly 3, thus facilitating the bearing of the pressure of the fixed assembly 8 later. In the latching state, the cooperation between the locking assembly 5 and the elastic component 6 facilitates the temporary positioning of the lifting assembly 3 when it moves along the column 2, achieving the effect of both facilitating the up and down movement of the lifting assembly 3 and facilitating the temporary positioning of the lifting assembly 3. Moreover, the guide limiting component 7 can not only conveniently limit and guide the locking assembly 5, but also indicate the locking state of the locking assembly 5, thus facilitating the lifting assembly 3 to drive the fixed assembly 8 to rise and fall.

[0025] Furthermore, the locking component 5 includes a locking block 501, which is inserted into one end of the fixed sleeve 4. A groove 504 is provided in the middle of one end of the locking block 501. Multiple locking circular grooves 502 are provided on the outer surface of the column 2. The top block 503 is fixedly connected to the middle of the locking circular groove 502. The locking block 501 includes a connecting circular block 5011, which is fixedly connected to the end of the elastic component 6. A positioning block 5012 is fixedly connected to one side of the middle of the connecting circular block 5011. Arc-shaped blocks 5013 are fixedly connected to both sides of the positioning block 5012. Initially, the groove 504 and the top block 503 are in an inserted state, meaning the positioning block 5012 is perpendicular to the horizontal plane. Simultaneously, the connecting block 5011 is partially inserted into the locking groove 502. Then, the guide and limiting assembly 7 moves the locking block 501, causing the groove 504 to separate from the top block 503. At this point, the connecting block 5011 completely exits the locking groove 502. Next, the guide and limiting assembly 7 rotates the locking block 501 ninety degrees, making the positioning block 5012 parallel to the horizontal plane, and the end face of the locking block 501 contacts the top block 503. The locking block 501 will not be locked into the locking groove 502. At this time, the locking component 5 changes from the locked state to the engaged state, and then the column 2 moves smoothly to the lifting component 3. During this process, the side of the arc-shaped block 5013 will be squeezed by the inner wall of the locking groove 502, thus retracting into the fixed sleeve 4, and further squeezing the elastic component 6, so that the locking block 501 will pass through each locking groove 502. And according to the position of the guide limit component 7, it can be determined whether the locking block 501 is fully inserted into the locking groove 502, thereby determining whether the docking and positioning are accurate. When component 8 reaches the designated position, the guide limit component 7 can be used to drive the locking block 501 to reset and rotate 90 degrees, so that the groove 504 and the top block 503 are realigned. At this time, the elastic component 6 drives the locking block 501 to reset, so that the groove 504 and the top block 503 are inserted, thereby changing the locking component 5 from the snap-fit ​​state to the locked state. This facilitates bearing the pressure of fixing component 8 later. The locking component 5 can not only switch between the snap-fit ​​state and the locked state, but also prevent the locking block 501 from being stuck, which would make it difficult to move the lifting component 3. At the same time, it can also prevent the locking block 501 from rotating.

[0026] It is important to note that in the initial state, the connecting block 5011 is inserted into the locking groove 502 to ensure a better dimensional fit between the locking block 501 and the locking groove 502. This not only improves the locking effect when the locking assembly 5 is locked but also allows for better force distribution. The thickness of the top block 503 is greater than the depth to which the connecting block 5011 is inserted into the locking groove 502, facilitating the separation of the connecting block 5011 from the locking groove 502 after the groove 504 separates from the top block 503. The two sides of the positioning block 5012 are arc-shaped, and the arc contour changes with the arc contour of the connecting block 5011, which facilitates the overall... The locking block 501 can rotate directly within the locking groove 502 without repeated positioning. The top block 503 is designed to cooperate with the groove 504 to prevent the locking block 501 from rotating. At the same time, when the locking component 5 is in the snap-fit ​​state, the top block 503 can push the locking block 501 each time it contacts the locking block 501, preventing the locking block 501 from being completely jammed with the locking groove 502. This makes it difficult for the arc-shaped block 5013 to be squeezed by the locking groove 502, thus achieving retraction. This facilitates the movement of the lifting component 3 and also makes it easy for the locking block 501 to be snapped into the locking groove 502 under the action of the elastic component 6, thus positioning the lifting component 3.

[0027] Furthermore, the guide limiting assembly 7 includes a limiting slider 701, which is fixedly connected to one side of the locking block 501. A protrusion 702 is fixedly connected to one end of the limiting slider 701. A guide groove 703 is formed on the outer surface of the fixing sleeve 4. The guide groove 703 includes a sliding groove 7031, which is formed on one side of the fixing sleeve 4. A limiting groove 7033 is formed on the other side of the fixing sleeve 4, located between the end of the sliding groove 7031 and the middle of the limiting groove 7033. When the locking assembly 5 is in its initial state, the protrusion 702 moves along the sliding groove 7031, causing the limiting slider 701 to move the locking block 501 until the groove 504 separates from the top block 503. Simultaneously, the limiting slider 701 also reaches the tail end of the sliding groove 7031 and aligns with the through groove 7032. Then, it moves along the through groove 7032... Move the device to the limiting groove 7033, then release the protrusion 702. At this time, the elastic component 6 drives the locking block 501 to reset slightly, and the limiting slider 701 is located at the end of the limiting groove 7033. At this time, the locking component 5 changes from the locked state to the snap-fit ​​state, and the lifting component 3 can be moved easily. After adjusting the position of the lifting component 3, the locking block 501 is also located inside the locking circular groove 502. At this time, move the protrusion 702 slightly backward along the limiting groove 7033 so that the limiting slider 701 is aligned with the through groove 7032. Then reset and rotate the protrusion 702 ninety degrees so that the limiting slider 701 moves into the sliding groove 7031. Then the elastic component 6 drives the locking block 501 to reset so that the groove 504 and the top block 503 can be inserted. At this time, the locking component 5 changes from the snap-fit ​​state to the locked state.

[0028] It is important to note that the position of the through groove 7032 is such that when the limiting slider 701 moves to the position aligned with the through groove 7032, the groove 504 and the top block 503 just separate, and the connecting round block 5011 also exits from the locking round groove 502, thus facilitating the locking block 501 to rotate 90 degrees. The middle position of the limiting groove 7033 communicates with the through groove 7032 to facilitate the limiting of the locking block 501 and prevent the locking block 501 from deflecting when the arc-shaped block 5013 contacts and squeezes the locking round groove 502. At the same time, the position of the protrusion 702 also serves to indicate the position of the locking block 501. The function of whether it aligns with the locking groove 502 is as follows: Since the distance between the two sides of the widest part of the positioning block 5012 matches the inner diameter of the locking groove 502, it means that only when the locking block 501 is completely aligned with the locking groove 502 will the locking block 501 be inserted into the locking groove 502 under the force of the elastic component 6. At this time, the protrusion 702 moves to the front end of the limiting groove 7033, that is, the position close to the column 2. The entire guide limiting component 7 not only has the functions of guiding and limiting, but also can indicate the position of the locking block 501, thereby facilitating operation.

[0029] Furthermore, the elastic component 6 includes a connecting cap 601, which is threaded to the inside of one end of the fixed sleeve 4. The movable rod 602 is fixedly connected to the end face of the locking component 5, and a return spring 603 is sleeved on the outer surface of the movable rod 602. When the locking block 501 moves along the inside of the fixed sleeve 4, it will drive the movable rod 602 to move along the inside of the connecting cap 601, thereby squeezing the return spring 603, so that the locking block 501 can be reset. This allows the locking component 5 to have a snap-fit ​​state and a locked state. One end of the movable rod 602 passes through the inside of the connecting cap 601. The connecting cap 601 can be rotated and disassembled later to remove the return spring 603, thereby maintaining the good elastic return capability of the elastic component 6.

[0030] Furthermore, a positioning component 10 is provided below the fixing component 8. The positioning component 10 includes a positioning plate 1001, which is fixedly connected to the bottom of the fixing component 8. A guide plate 1002 is fixedly connected to the bottom of the positioning plate 1001. A vertical groove 1003 is formed at the top of the positioning plate 1001. A movable block 1004 is slidably connected to the inside of the vertical groove 1003. A movable plate 1005 is fixedly connected to one end of the movable block 1004. The lifting component 3 drives the fixing component 8 to move, thereby driving the positioning component 10 to move. The guide plate 1002 contacts the edge of the box, thereby gradually correcting the position of the box until the box reaches the positioning plate 1001. As the positioning plate 1001 moves along the box, the movable plate 1005 contacts the top of the box, thereby... The movable T-shaped block 1004 moves upward along the vertical groove 1003. During the movement of the lifting component 3 and the fixed component 8, the positioning component 10 simultaneously aligns the clamping surface of the box with the movable plate 1005 and its fixed component 8, facilitating accurate downward pressing and fixing of the fixed component 8. The arc-shaped guide plate 1002 serves as a guide, while the positioning plate 1001 completes the positioning of the box, placing it between the two positioning plates 1001. The movable block 1004 and the movable plate 1005 are designed to be clearly moving, thus directly determining that the box is positioned. Furthermore, the cooperation between the locking block 501 and the locking groove 502 allows the fixed component 8 to be some distance from the box, facilitating downward pressing and squeezing of the movable plate 1005 to fix the box.

[0031] Furthermore, the fixing component 8 includes a fixing plate 801, which is disposed in the middle of the lifting component 3. A pressing screw 802 is threadedly connected to the middle of the fixing plate 801, and a pressing plate 804 is rotatably connected to the end of the pressing screw 802. A limiting rod 803 is fixedly connected to the top of the pressing plate 804, and one end of the limiting rod 803 passes through the fixing plate 801. The lifting component 3 drives the two opposing fixing components 8 to move synchronously. First, the height of the fixing components 8 can be quickly adjusted, so that the fixing components 8 can quickly fix the box. At the same time, the fixing components 8 share the pressure through a complete lifting component 3, so that the force is more even. When the lifting component 3 drives the fixing components 8 to move down, the positioning component 10 completes the positioning of the box. Then, the pressing screw 802 is rotated. Due to the limitation of the limiting rod 803, the pressing screw 802 drives the pressing plate 804 to contact and press the box, thereby fixing the box.

[0032] Mounting component 9 includes a through hole 901, which is formed on the outer surface of the fixing plate 801. One end of the through hole 901 has a mounting groove 902, and the top of the through hole 901 has a slot 906. A mounting threaded post 903 is fixedly connected to the outer surface of the middle part of the lifting component 3. A mounting block 904 is threadedly connected to the outer surface of the mounting threaded post 903, and an outer ring 905 is fixedly connected to one end of the mounting block 904. When the fixing component 8 needs to be replaced to adapt to different sized housings, the outer ring 905 can be rotated, causing the mounting block 904 to rotate, thus separating the mounting block 904 from the mounting threaded post 903. Then, the fixing component 8 can be lowered, allowing... The threaded post 903 is moved from the through hole 901 to the slot 906 and then out. During subsequent installation, the slot 906 on the fixing plate 801 is inserted along the threaded post 903 so that the threaded post 903 is located inside the through hole 901. Then, the outer ring 905 is reversed so that the mounting block 904 is screwed into the threaded post 903 and inserted into the mounting slot 902. The inner contours of the mounting block 904 and the mounting slot 902 can both be set to be tapered to facilitate stable insertion of the mounting block 904 into the mounting slot 902 and complete the limiting. The outer contour of the outer ring 905 can be set to be regular hexagonal to facilitate cooperation with a wrench.

[0033] Example 2: Example 2 further discloses that, based on Example 1, both sides of the movable plate 1005 are provided with anti-slip pads, which can first increase the friction between the plate 804 and the box body, and also prevent damage to the box body.

[0034] Example 3: The difference between Example 3 and Example 1 is that the tail end of the slide groove 7031, that is, the end of the slide groove 7031 away from the column 2, is connected to one end of the through groove 7032. The other end of the through groove 7032 is connected to the front end of the limiting groove 7033, that is, the end of the limiting groove 7033 near the column 2. The other end of the through groove 7032 is not connected to the middle of the limiting groove 7033. This allows the protrusion 702 to be reset at ninety degrees without needing to move it outwards slightly. It can be directly reset and rotated, thereby changing the snap-fit ​​state of the locking component 5 to the locked state.

[0035] A machining method for a CMC enclosure machining fixture, wherein the specific steps of the machining method for implementing the aforementioned CMC enclosure machining fixture are as follows: Step 1: Move the protrusion 702 along the guide groove 703 until the groove 504 separates from the top block 503. Then rotate the protrusion 702 ninety degrees to change the locking block 501 from the original locked state with the locking groove 502 to the snap-fit ​​state. Step 2: Then move the lifting component 3 along the column 2 so that the positioning component 10 is close to the box. Use the positioning component 10 to position the box so that the clamping surface of the box is aligned with the fixing component 8. Observe whether the movable plate 1005 and its movable block 1004 have an upward movement. If an upward movement occurs, it means that the positioning of the box is complete. Step 3: Based on the position of the protrusion 702, indicate whether the locking block 501 is engaged. If the protrusion 702 is close to the column 2, it means that it has been engaged. Otherwise, it means that it has not been engaged. Then, reset the protrusion 702 along the guide groove 703 and reset the locking block 501 under the force of the elastic component 6 until the groove 504 is inserted into the top block 503, thus locking the lifting component 3. Step 4: By rotating the extrusion screw 802, the extrusion plate 804 is moved downward, thereby using the extrusion plate 804 to press the movable plate 1005, thus completing the fixation of the box.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CMC enclosure machining fixture, characterized in that, include: substrate(1); A column (2) is fixedly connected to the top of the base plate (1); Lifting assembly (3), which is sleeved on the outer surface of column (2); The lifting assembly (3) is provided with a locking mechanism that can switch between limiting states. The locking mechanism can switch between a snap-fit ​​state and a locking state. In the snap-fit ​​state, the lifting assembly (3) can move vertically along the column (2) and be temporarily positioned. In the locking state, the lifting assembly (3) can be locked and limited. A fixing component (8) is provided on one side of the lifting component (3). An installation component (9) is provided between the fixing component (8) and the lifting component (3). A positioning component (10) is provided below the fixing component (8), and the positioning component (10) positions the box synchronously with the movement of the lifting component (3).

2. The CMC enclosure machining fixture according to claim 1, characterized in that, The locking mechanism includes: Fixed sleeve (4), the fixed sleeve (4) is fixedly connected to the outer surface of the lifting assembly (3); Locking component (5), which is disposed between the fixing sleeve (4) and the column (2); An elastic component (6) is located at the end of the locking component (5); Guide limiting component (7) is provided on one side of locking component (5). Guide limiting component (7) is used to guide locking component (5) to move and rotate along fixed sleeve (4) to realize the switching between locking component (5) in the snap-on state and the locked state.

3. The CMC enclosure machining fixture according to claim 2, characterized in that, The locking component (5) includes: Locking block (501), the locking block (501) is inserted into one end of the fixed sleeve (4), and a groove (504) is provided in the middle of one end of the locking block (501). Locking groove (502): Multiple locking grooves (502) are provided on the outer surface of the column (2); Top block (503) is fixedly connected to the middle part of the locking groove (502), and the width of the top block (503) is adapted to the width of the groove (504).

4. The CMC enclosure machining fixture according to claim 3, characterized in that, The locking block (501) includes: Connecting block (5011), the connecting block (5011) is fixedly connected to the end of elastic component (6); The positioning block (5012) is fixedly connected to one side of the middle part of the connecting round block (5011). Both sides of the positioning block (5012) are fixedly connected to arc-shaped blocks (5013). The thickness of the top block (503) is greater than the depth of the connecting round block (5011) inserted into the locking round groove (502). The two sides of the positioning block (5012) are arc-shaped, and the arc-shaped contour is adapted to the arc-shaped contour of the connecting round block (5011).

5. The CMC enclosure machining fixture according to claim 3, characterized in that, The guide limiting component (7) includes: A limiting slider (701) is fixedly connected to one side of a locking block (501), and a protrusion (702) is fixedly connected to one end of the limiting slider (701). Guide groove (703) is formed on the outer surface of the fixed sleeve (4).

6. The CMC enclosure machining fixture according to claim 5, characterized in that, The guide groove (703) includes: The slide groove (7031) is formed on one side of the fixed sleeve (4); A limiting groove (7033) is provided on the other side of the fixing sleeve (4); The through groove (7032) is located between the end of the slide groove (7031) and the middle of the limiting groove (7033).

7. The CMC enclosure machining fixture according to claim 2, characterized in that, The elastic component (6) includes: Connecting cap (601), the connecting cap (601) is threaded to the inside of one end of the fixing sleeve (4); Movable rod (602), the movable rod (602) is fixedly connected to the end face of the locking assembly (5), the outer surface of the movable rod (602) is fitted with a return spring (603), and one end of the movable rod (602) passes through the interior of the connecting cap (601); The lifting assembly (3) includes a lifting sleeve (301) sleeved on the outer surface of the column (2) and a connecting pipe (302) fixedly connected between two adjacent lifting sleeves (301).

8. The CMC enclosure machining fixture according to claim 1, characterized in that, The fixing component (8) includes: A fixing plate (801) is provided in the middle of the lifting assembly (3), and a pressing screw (802) is threadedly connected to the middle of the fixing plate (801). An extrusion plate (804) is rotatably connected to the end of an extrusion screw (802). A limit rod (803) is fixedly connected to the top of the extrusion plate (804), and one end of the limit rod (803) passes through a fixed plate (801). The installation component (9) includes: A through hole (901) is provided on the outer surface of the fixing plate (801). A mounting groove (902) is provided at one end of the through hole (901), and a slot (906) is provided at the top of the through hole (901). The mounting threaded column (903) is fixedly connected to the outer surface of the middle part of the lifting assembly (3). The outer surface of the mounting threaded column (903) is threadedly connected to the mounting block (904). One end of the mounting block (904) is fixedly connected to the outer ring (905). The outer contour of the mounting block (904) and the inner contour of the mounting groove (902) are set to be conical.

9. The CMC enclosure machining fixture according to claim 1, characterized in that, The positioning component (10) includes: Positioning plate (1001), the positioning plate (1001) is fixedly connected to the bottom of the fixing component (8), and a guide plate (1002) is fixedly connected to the bottom of the positioning plate (1001), the guide plate (1002) has an arc-shaped cross-sectional profile; A vertical groove (1003) is formed on the top of the positioning plate (1001); Movable block (1004) is slidably connected to the inside of vertical groove (1003), and one end of the movable block (1004) is fixedly connected to a movable plate (1005).

10. A processing method for a CMC enclosure machining fixture, wherein the CMC enclosure machining fixture described in any one of claims 1 to 9 is characterized in that, The specific steps of the processing method are as follows: Step 1: Move the protrusion (702) along the guide groove (703) until the groove (504) separates from the top block (503). Then rotate the protrusion (702) ninety degrees to change the locking block (501) from the original locked state with the locking groove (502) to the snap-fit ​​state. Step 2: Then move the lifting component (3) along the column (2) so that the positioning component (10) is close to the box. Use the positioning component (10) to position the box so that the clamping surface of the box is aligned with the fixing component (8). Observe whether the movable plate (1005) and its movable block (1004) have an upward movement. If an upward movement occurs, it means that the positioning of the box is completed. Step 3: Based on the position of the protrusion (702), indicate whether the locking block (501) is engaged. If the protrusion (702) is close to the column (2), it means that it has been engaged. Otherwise, it means that it has not been engaged. Then, reset the protrusion (702) along the guide groove (703) and reset the locking block (501) under the force of the elastic component (6) until the groove (504) is inserted into the top block (503) to complete the locking of the lifting component (3). Step 4: By rotating the extrusion screw (802), the extrusion plate (804) is driven to move downward, thereby using the extrusion plate (804) to extrude the movable plate (1005), thus completing the fixation of the box.

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