A processing method for a thin-walled cabin section

Abstract

The present application relates to a kind of processing methods of thin-walled cabin section, belong to the field of machining technology, solve the problem that the machining precision of cabin section inner cavity profile is not high when the inner cavity profile of cabin section is processed, due to unstable clamping, processing is easy to produce larger tremor.Cabin section is fixed on the rotary table mechanism by the present application, so that the cabin section, the rotary table mechanism and form a rigid whole, thereby improving the clamping stability of the cabin section to be processed, preventing tremor during processing, and further improving the machining precision.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a method for machining thin-walled compartment sections. Background Technology

[0002] To meet design weight requirements, large-sized thin-walled compartments are typically cast and then machined using machine tools to achieve full-surface machining of the internal cavity and external shape. Due to the long dimensions and thin walls of the compartments, their rigidity is poor. When machining the internal cavity surfaces, unstable clamping can easily cause significant vibrations during machining, resulting in low machining accuracy of the internal cavity surfaces. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a machining method for thin-walled compartment sections, in order to solve the problem in the prior art that when machining the inner cavity surface of the compartment section, unstable clamping easily generates large vibrations during machining, resulting in low machining accuracy of the inner cavity surface of the compartment section.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] A method for processing thin-walled compartment sections includes the following steps:

[0006] Step S1: Install the clamping fixture on the machine tool worktable;

[0007] Step S2: The section to be processed is installed onto the clamping fixture, so that the section to be processed and the clamping fixture form a rigid whole;

[0008] Step S3: Machin the inner cavity surface of the section to be machined.

[0009] Furthermore, the installation of clamping fixtures on the machine tool worktable specifically includes: installing a positioning plate onto the machine tool worktable and positioning the positioning plate so that the zero point of the positioning plate coincides with the zero point of the machine tool worktable.

[0010] Furthermore, the section to be processed is installed onto the clamping fixture, specifically including: according to the size of the section to be processed, installing the first fixture, the second fixture, the first stabilizer, the second stabilizer and the turntable mechanism onto the support plate.

[0011] Furthermore, the process of installing the section to be processed onto the clamping fixture also includes: passing the section to be processed through the turntable mechanism, and fixing the section to be processed onto the turntable mechanism by the first and second fixing devices.

[0012] Furthermore, the process of installing the section to be processed onto the clamping fixture also includes: connecting the first stabilizer and the second stabilizer to the first fixture and the second fixture respectively to support both ends of the section to be processed.

[0013] Furthermore, the installation of the section to be processed onto the clamping fixture also includes: adjusting the zero point of the section to be processed so that the zero point of the section to be processed coincides with the support plate.

[0014] Furthermore, the process of installing the section to be processed onto the clamping fixture also includes: loading the support plate for installing the section to be processed onto the positioning plate.

[0015] Furthermore, the machining of the inner cavity surface of the section to be machined specifically includes: after adjusting and aligning the machine tool cutting tools, starting the turntable mechanism to drive the section to be machined to rotate, first machining the inner cavity at one end of the section, and after machining is completed, rotating the machine tool worktable 180° to continue machining the inner cavity at the other end of the section until machining is completed.

[0016] Furthermore, the clamping fixture includes a positioning and fixing device.

[0017] Furthermore, the positioning and fixing device is used for zero-point positioning of the cabin to be processed.

[0018] The technical solution of this invention can achieve at least one of the following effects:

[0019] (1) The present invention provides a processing method for thin-walled compartments, comprising the following steps: Step S1: Installing a clamping fixture on the machine tool worktable; Step S2: Installing the compartment to be processed onto the clamping fixture, so that the compartment to be processed and the clamping fixture form a rigid whole; Step S3: Processing the inner cavity surface of the compartment to be processed; thereby fixing the compartment to be processed on the turntable mechanism, so that the compartment to be processed and the turntable mechanism form a rigid whole, thereby improving the clamping stability of the compartment to be processed, preventing vibration during processing, and thus improving the processing accuracy.

[0020] (2) The present invention provides a processing method for thin-walled compartment sections. The clamping fixture includes a positioning and fixing device, which includes a positioning plate, a support plate, a positioning locking mechanism, and a cleaning mechanism. The positioning and locking mechanism is disposed on the positioning plate and is used to position the support plate when it is installed onto the positioning plate. The positioning and locking mechanism includes a first reference end face and a second reference end face, which are disposed opposite to the first reference end face and can contact the first reference end face. The cleaning mechanism is installed on the positioning and locking mechanism and is used to clean the first reference end face and the second reference end face, keeping them clean and preventing accuracy deviations caused by residual particles on the first and second reference end faces. This not only ensures the installation accuracy of the support plate and the positioning plate to improve the positioning accuracy of the compartment section to be processed, but also improves the cleaning efficiency of the positioning and fixing device. At the same time, it can also avoid safety hazards caused by worker operation errors and prevent worker injuries.

[0021] (3) The cleanroom mechanism of the present invention includes a purge cleaning device, which includes an air connection chamber, a first air blowing hole, a second air blowing hole, and a third gas passage. The air connection chamber is connected to a third mounting chamber through the third gas passage. The first air blowing hole and the second air blowing hole are both connected to the air connection chamber. The first air blowing hole is used to purge the first reference end face to keep the first reference end face clean. The second air blowing hole is used to purge the second positioning end face to keep the second reference end face clean. By continuously purging and cleaning the first reference end face and the second reference end face through the purge cleaning device, the first reference end face and the second reference end face are kept clean, thereby preventing the accuracy deviation caused by residual particles on the first reference end face and the second reference end face. This not only ensures the installation accuracy of the support plate and the positioning plate to improve the positioning accuracy of the section to be processed, but also improves the cleaning efficiency of the positioning fixture. At the same time, it can also avoid safety hazards caused by worker operation errors and prevent worker injury.

[0022] (4) The cleanroom mechanism of the present invention is further provided with a wiping and cleaning device, which includes a drive sleeve, a support frame, a first wiping and cleaning component, and a second wiping and cleaning component. The first wiping and cleaning component includes a first cleaning block, and the second wiping and cleaning component includes a second cleaning block. The drive sleeve is fitted onto the base and can rotate along the axis of the base and slide up and down. The support frame is mounted on the drive sleeve and can rotate synchronously with the drive sleeve. The first wiping and cleaning component is mounted on the support frame and can slide up and down along the axis of the support frame, and can also rotate with the support frame. The first cleaning block and... The first reference end face remains in contact for wiping the first reference end face; the second wiping and cleaning component is mounted on the support frame and can also rotate with the support frame. The second cleaning block remains in contact with the second reference end face for wiping the second reference end face; by rotating the drive sleeve, the support frame is driven to rotate, thereby driving the first wiping and cleaning component and the second wiping and cleaning component to rotate, thereby controlling the first cleaning block to wipe the first reference end face and controlling the second cleaning block to wipe the second reference end face, thereby further improving the cleanliness of the first reference end face and the second reference end face, and thus further improving the positioning accuracy.

[0023] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0024] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0025] Figure 1 This is a flowchart of the wall section processing method according to Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the clamping fixture in Embodiment 2 of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first fixture, the second fixture, and the turntable mechanism in Embodiment 2 of the present invention;

[0028] Figure 4 This is a schematic diagram of the positioning and fixing device according to Embodiment 2 of the present invention;

[0029] Figure 5 This is a cross-sectional view of the positioning and locking mechanism of Embodiment 2 of the present invention;

[0030] Figure 6 This is an exploded view of the wiping and cleaning device according to Embodiment 2 of the present invention;

[0031] Figure 7 This is a schematic diagram of the support frame structure of Embodiment 2 of the present invention;

[0032] Figure 8 This is an exploded view of the first wiping and cleaning assembly of Embodiment 2 of the present invention;

[0033] Figure 9 This is an exploded view of the second wiping and cleaning assembly of Embodiment 2 of the present invention;

[0034] Figure 10 This is a cross-sectional view of the linkage shaft in Embodiment 2 of the present invention.

[0035] Figure label:

[0036] 1. First fixture; 11. First fixing plate; 12. First connecting rod; 2. Second fixture; 21. Second fixing plate; 22. Second connecting rod; 3. First stabilizer; 4. Second stabilizer; 5. Turntable mechanism; 51. Housing; 52. Turntable body; 6. Positioning fixture; 61. Positioning plate; 62. Support plate; 63. Positioning locking mechanism; 631. Locking pin; 6311. Locking groove; 6312. Air connection cavity; 6313. First air blowing hole; 6314. Second air blowing hole; 632. Locking mechanism; 6321. Seat; 6322. Drive wedge; 6323. Locking ball; 6324. First elastic element; 6325. Drive cavity; 64. Cleaning mechanism; 641. Drive sleeve; 64 11. Limiting cavity; 6412. First protrusion; 642. Support frame; 6421. Support plate; 6422. Second elastic element; 6423. Ring seat groove; 643. First wiping and cleaning assembly; 6431. First cleaning block; 6432. First mounting ring seat; 64321. First cleaning block groove; 64322. Anti-rotation protrusion; 64323. Avoidance hole; 64324. Second protrusion; 6433. First linkage ring; 644. Second wiping and cleaning assembly; 6441. Second cleaning block; 6442. Second mounting ring seat; 64421. Second cleaning block groove; 6443. Second linkage ring; 645. Linkage shaft; 6451. Shaft tooth; 6452. Shaft groove; 646. Third elastic element. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0038] Example 1

[0039] In one specific embodiment of the present invention, a method for processing thin-walled compartment sections is disclosed, such as... Figure 1 As shown, it includes the following steps:

[0040] Step S1: Install the clamping fixture on the machine tool worktable;

[0041] Specifically, the positioning plate 61 is installed on the machine tool worktable and positioned so that the zero point of the positioning plate 61 coincides with the zero point of the machine tool worktable.

[0042] Step S2: The section to be processed is installed onto the clamping fixture, so that the section to be processed and the clamping fixture form a rigid whole;

[0043] Specifically, according to the size of the section to be processed, the first fixture 1, the second fixture 2, the first stabilizer 3, the second stabilizer 4 and the turntable mechanism 5 are installed on the support plate 62;

[0044] The section to be processed is threaded onto the turntable mechanism 5, and the section to be processed is fixed onto the turntable mechanism 5 by the first fixer 1 and the second fixer 2, so that the first fixer 1, the second fixer 2, the turntable mechanism 5 and the section to be processed form a rigid whole.

[0045] The first stabilizer 3 and the second stabilizer 4 are connected to the first fixture 1 and the second fixture 2 respectively to support the two ends of the section to be processed, thereby further improving the stability of the section to be processed clamping, further avoiding vibration and deformation of the section to be processed during the internal cavity processing, and further improving the processing accuracy of the section to be processed.

[0046] While clamping the section to be processed, simultaneously adjust the zero point of the section to be processed so that the zero point of the section to be processed coincides with the support plate 62.

[0047] Load the support plate 62, which is to be installed on the compartment to be processed, onto the positioning plate 61;

[0048] Furthermore, the section to be processed is passed through the hollow cavity of the turntable body 52. ​​The first fixing plate 11 is fixedly connected to one end of the section to be processed, and one end of the first connecting rod 12 is fixedly connected to the first fixing plate 11, while the other end is fixedly connected to the turntable body 52. ​​The second fixing plate 21 is fixedly connected to the other end of the section to be processed, and one end of the second connecting rod 22 is fixedly connected to the second fixing plate 21, while the other end is fixedly connected to the turntable body 52. ​​The section to be processed is fixedly connected to the turntable body 52 through the first connecting rod 12, the first fixing plate 11, the second connecting rod 22, and the second fixing plate 21, so that the section to be processed and the turntable body 52 form a rigid whole, achieving stable clamping of the section to be processed, avoiding vibration during the processing of the inner cavity of the section to be processed, and improving processing accuracy.

[0049] Step S3: Process the section to be processed;

[0050] Specifically, after adjusting and aligning the machine tool cutting tools, the turntable mechanism 5 is started to rotate the section to be processed. First, the inner cavity at one end of the section is processed. After processing is completed, the machine tool worktable rotates 180° to continue processing the inner cavity at the other end of the section until processing is completed. There is no need to clamp again during the processing, which improves processing efficiency and processing accuracy.

[0051] Example 2

[0052] In another specific embodiment of the present invention, a clamping fixture for Embodiment 1 is disclosed; such as Figure 2As shown, the device includes a first fixture 1, a second fixture 2, and a turntable mechanism 5. The turntable mechanism 5 can be fitted onto the section to be processed. The first fixture 1 and the second fixture 2 are located on both sides of the turntable mechanism 5 and connected to it. The first fixture 1 is used to fix one end of the section to be processed onto the turntable mechanism 5, and the second fixture 2 is used to fix the other end of the section to be processed onto the turntable mechanism 5. The turntable mechanism 5 is used to drive the section to be processed to rotate. The first fixture 1 and the second fixture 2 can fix the section to be processed onto the turntable mechanism 5, so that the first fixture 1, the second fixture 2, the turntable mechanism 5, and the section to be processed form a rigid whole, thereby improving the clamping stability of the section to be processed, preventing vibration during the processing of the inner cavity of the section to be processed, and thus improving the processing accuracy.

[0053] Preferably, such as Figure 3 As shown, the turntable mechanism 5 includes a housing 51, a turntable body 52, and a control motor. The housing 51 is used to connect with the machine tool worktable. The turntable body 52 passes through the housing 51 and is rotatably connected to the housing 51. The control motor is mounted on the housing 51 and connected to the turntable body 52, and is used to drive the turntable body 52 to rotate.

[0054] Preferably, the turntable body 52 has a hollow cavity through which the section to be processed can pass.

[0055] Preferably, the first fixture 1 includes a first fixing plate 11 and a first connecting rod 12. The first fixing plate 11 is fixedly connected to one end of the section to be processed; one end of the first connecting rod 12 is fixedly connected to the first fixing plate 11, and the other end is fixedly connected to the turntable body 52. ​​The first connecting rod 12 and the first fixing plate 11 can fix one end of the section to be processed to the turntable body 52. ​​The first connecting rod 12 can not only provide stable support for the section to be processed, but also make the section to be processed and the turntable body 52 form a rigid whole, so as to achieve stable clamping and avoid vibration during the processing of the inner cavity of the section to be processed, thereby improving the processing accuracy.

[0056] Preferably, the second fixture 2 includes a second fixing plate 21 and a second connecting rod 22. The second fixing plate 21 is fixedly connected to the other end of the section to be processed. One end of the second connecting rod 22 is fixedly connected to the second fixing plate 21, and the other end is fixedly connected to the turntable body 52. ​​The second connecting rod 22 and the second fixing plate 21 can fix one end of the section to be processed to the turntable body 52. ​​The second connecting rod 22 can not only provide stable support for the section to be processed, but also make the section to be processed and the turntable body 52 form a rigid whole, realize stable clamping, avoid vibration during the processing of the inner cavity of the section to be processed, and thus improve the processing accuracy.

[0057] In use, the section to be processed is passed through the hollow cavity of the turntable body 52. ​​The first fixing plate 11 is fixedly connected to one end of the section to be processed, and one end of the first connecting rod 12 is fixedly connected to the first fixing plate 11, while the other end is fixedly connected to the turntable body 52. ​​The second fixing plate 21 is fixedly connected to the other end of the section to be processed, and one end of the second connecting rod 22 is fixedly connected to the second fixing plate 21, while the other end is fixedly connected to the turntable body 52. ​​The section to be processed is fixedly connected to the turntable body 52 through the first connecting rod 12, the first fixing plate 11, the second connecting rod 22, and the second fixing plate 21, so that the section to be processed and the turntable body 52 form a rigid whole, achieving stable clamping and avoiding vibration during the processing of the inner cavity of the section to be processed, thereby improving the processing accuracy.

[0058] Preferably, multiple first connecting rods 12 are provided, and the multiple first connecting rods 12 are evenly arranged around the circumference; multiple second connecting rods 22 are provided, and the multiple second connecting rods 22 are evenly arranged around the circumference; by evenly arranging multiple first connecting rods 12 and multiple second connecting rods 22, the force on the section to be processed can be uniform, which can further improve the connection rigidity between the section to be processed and the turntable body 52, thereby improving the stability of the clamping of the section to be processed, preventing the section to be processed from vibrating and deforming during the internal cavity processing, thereby improving the processing accuracy of the section to be processed.

[0059] Preferably, the clamping fixture further includes a first stabilizer 3 and a second stabilizer 4. The first stabilizer 3 is used to support the first fixed plate 11, and the second stabilizer 4 is used to support the second fixed plate 21, thereby supporting both ends of the section to be processed, further improving the stability of the clamping of the section to be processed, further preventing the section to be processed from vibrating and deforming during the internal cavity processing, and thus further improving the processing accuracy of the section to be processed.

[0060] Preferably, the first stabilizer 3 includes a first support and a first stabilizing wheel. The first support is used to connect to the machine tool worktable, and the first stabilizing wheel is installed on the first support. Two sets of the first stabilizing wheels are provided to support the first fixed plate 11, thereby improving the stability of the support for the section to be processed.

[0061] Preferably, the second stabilizer 4 includes a second support and a second stabilizing wheel. The second support is used to connect to the machine tool worktable, and the second stabilizing wheel is mounted on the first support. Two sets of the second stabilizing wheels are provided to support the second fixed plate 21, thereby improving the stability of the support for the section to be processed.

[0062] Preferably, the clamping fixture further includes a positioning fixture 6, which is used to quickly perform zero-point positioning of the section to be processed; the first fixture 1, the second fixture 2, the first stabilizer 3, the second stabilizer 4 and the turntable mechanism 5 are all mounted on the positioning fixture 6 and mounted on the machine tool worktable through the positioning fixture 6, thereby quickly performing zero-point positioning of the section to be processed.

[0063] Preferably, such as Figure 4 As shown, the positioning and fixing device 6 includes a positioning plate 61, a support plate 62, a positioning and locking mechanism 63, and a cleaning mechanism 64. The positioning plate 61 can be installed on the machine tool worktable. The support plate 62 is used to install the first fixing device 1, the second fixing device 2, the first stabilizer 3, the second stabilizer 4, and the turntable mechanism 5. The positioning and locking mechanism 63 is set on the positioning plate 61 and is used to quickly and accurately position the support plate 62 when it is installed on the positioning plate 61, so as to maintain the positioning accuracy of the support plate 62 and thus perform zero-point positioning of the section to be processed. The cleaning mechanism 64 is installed on the positioning and locking mechanism 63 and is used to clean the positioning and locking mechanism 63 to ensure the installation accuracy of the support plate 62 and the positioning plate 61.

[0064] Preferably, the positioning plate 61 is provided with a first gas passage, which is connected to external compressed air.

[0065] Preferably, the positioning and locking mechanism 63 includes a first reference end face, a second reference end face, a locking post 631, and a locking mechanism 632. The first reference end face is disposed on the locking mechanism 632, and the locking mechanism 632 is disposed on the positioning plate 61. The second reference end face and the locking post 631 are both disposed on the support plate 62. The second reference end face is disposed opposite to the first reference end face, and the second reference end face can contact the first reference end face, so that when the support plate 62 is mounted on the positioning plate 61, it is used to position the support plate 62, so that the upper mounting surface of the support plate 62 is parallel to the table surface of the machine tool. The locking post 631 is located on the second reference end face and can be inserted into the locking mechanism 632. The locking mechanism 632 is used to position and lock the inserted locking post 631, thereby realizing the rapid positioning and fixing of the support plate 62, and thus realizing the rapid positioning of the workpiece to be processed mounted on the support plate 62, improving the positioning efficiency and positioning accuracy.

[0066] Preferably, such as Figure 5 As shown, the locking post 631 is provided with a locking groove 6311, which is an arc-shaped groove, and the locking groove 6311 is circumferentially arranged on the cylindrical surface of the locking post 631.

[0067] Preferably, the locking mechanism 632 includes a seat 6321, a driving wedge 6322, a locking ball 6323, a first elastic element 6324, and a driving cavity 6325. One end of the seat 6321 is fixedly connected to the positioning plate 61, and the other end is a first reference end face. The seat 6321 is provided with a first mounting cavity, a second mounting cavity, a third mounting cavity, and a second gas passage. The third mounting cavity is used to insert the locking pin 631 and position the locking pin 631. The first mounting cavity communicates with the second mounting cavity. The locking ball 6323 is disposed in the first mounting cavity and can protrude out of or retract into the first mounting cavity. The locking ball 6323 is used to lock and fasten the locking pin 631. The drive wedge 6322 is disposed in the second mounting cavity and can slide within the second mounting cavity. It is used to control the locking ball 6323 to protrude or retract into the first mounting cavity, thereby locking and fixing the locking pin 631 and releasing the locking and fixing. The first elastic element 6324 is disposed in the second mounting cavity, with one end connected to the second mounting cavity and the other end connected to the drive wedge 6322. The first elastic element 6324 is used to apply an elastic thrust to the drive wedge 6322 at all times. The drive cavity 6325 is formed by the drive wedge 6322 and the second mounting cavity. The drive cavity 6325 is connected to one end of the second gas passage, and the other end of the second gas passage is connected to the first gas passage.

[0068] In use, compressed gas is introduced into the drive cavity 6325 through the external gas passage via the first and second gas passages. The drive cavity 6325 expands, pushing the drive wedge 6322 to slide away from the first reference end face, thereby removing the force on the locking ball 6323 and causing the locking ball 6323 to retract into the first mounting cavity. The locking pin 631 is then inserted into the third mounting cavity. When the second reference end face contacts the first reference end face, the external gas passage is disconnected. Under the elastic thrust of the first elastic element 6324, the drive wedge 6322 is pushed to slide towards the first reference end face, thereby applying a force to the locking ball 6323, causing the locking ball 6323 to protrude out of the first mounting cavity and insert into the locking groove 6311, locking and fixing the locking pin 631. This achieves rapid positioning and fixing of the support plate 62, thereby improving the positioning efficiency and accuracy of mounting the support plate 62 onto the positioning plate 61.

[0069] Preferably, the clean mechanism 64 includes a purging and cleaning device, which continuously purifies and cleans the first reference end face and the second reference end face when the support plate 62 is clamped onto the positioning plate 61, keeping the first reference end face and the second reference end face clean, thereby preventing the accuracy deviation caused by residual particles on the first reference end face and the second reference end face, thereby improving the positioning accuracy of the positioning fixture 6, and further improving the positioning accuracy of the section to be processed.

[0070] Preferably, the purging and cleaning device includes an air connection chamber 6312, a first air blowing port 6313, a second air blowing port 6314, and a third gas passage. The third gas passage is disposed on the base 6321, with one end connected to the first gas passage and the other end connected to the third mounting cavity. The air connection chamber 6312, the first air blowing port 6313, and the second air blowing port 6314 are all disposed on the locking post 631. Both the first air blowing port 6313 and the second air blowing port 6314 are connected to the air connection chamber 6312. The first air blowing port 6313 is used to purge the first reference end face to keep it clean. The second air blowing port 6314 is used to purge the second reference end face to keep it clean.

[0071] In use, when the support plate 62 is clamped onto the positioning plate 61, the locking pin 631 is inserted into the third mounting cavity for positioning and locking. At the same time, compressed gas is injected into the gas connection cavity 6312 through the external air passage via the first gas passage and the third gas passage. The first reference end face is purged through the first air hole 6313, and the second reference end face is purged through the second air hole 6314. This achieves continuous purging and cleaning of the first and second reference end faces while the support plate 62 is clamped onto the positioning plate 61, keeping the first and second reference end faces clean. This prevents accuracy deviations caused by residual particles on the first and second reference end faces, thereby improving the positioning accuracy of the positioning fixture 6. Furthermore, when the support plate 62 is clamped onto the positioning plate 61, manual cleaning is not required, improving assembly efficiency and the safety of manual operation.

[0072] Preferably, the first air hole 6313 is inclined towards the first reference end face, that is, the first air hole 6313 is inclined away from the second reference end face, so that the gas blown out by the first air hole 6313 can be concentrated and blown towards the first reference end face, thereby improving the cleaning effect on the first reference end face; the second air hole 6314 is inclined towards the second reference end face, so that the gas blown out by the second air hole 6314 can be concentrated and blown towards the second reference end face, thereby improving the cleaning effect on the second reference end face, and at the same time continuously blowing and cleaning the second reference end face, so that the second reference end face can be kept clean, thereby improving the positioning accuracy of the contact between the second reference end face and the first reference end face.

[0073] Preferably, multiple first air holes 6313 are provided, and the multiple first air holes 6313 are arranged circumferentially, thereby increasing the blowing direction and simultaneously increasing the blowing area on the first reference end face, thereby achieving comprehensive blowing on the first reference end face and further improving the cleaning effect on the first reference end face.

[0074] Preferably, multiple second air holes 6314 are provided, and the multiple second air holes 6314 are arranged circumferentially, thereby increasing the blowing direction and simultaneously increasing the blowing area on the second reference end face, thereby achieving comprehensive blowing on the second reference end face and further improving the cleaning effect on the second reference end face.

[0075] Preferably, the first air holes 6313 are arranged in multiple rows. The multiple rows of the first air holes 6313 enable the locking pin 631 to be inserted into the third mounting cavity and continuously blow clean the first reference end face before the second reference end face contacts the first reference end face, so that the first reference end face can be kept clean.

[0076] Preferably, the clean mechanism 64 further includes a wiping and cleaning device, which is used to wipe the first reference end face and the second reference end face to further improve the cleanliness of the first reference end face and the second reference end face, thereby further improving the positioning accuracy of the first reference end face and the second reference end face, and further improving the positioning accuracy of the positioning fixture 6. Through the coordinated action of the blowing and cleaning device and the wiping and cleaning device, the cleanliness of the first reference end face and the second reference end face can be further improved.

[0077] Preferably, such as Figure 6As shown, the wiping and cleaning device includes a drive sleeve 641, a support frame 642, a first wiping and cleaning assembly 643, a second wiping and cleaning assembly 644, and a linkage shaft 645. The drive sleeve 641 is provided with a limiting cavity 6411. The first wiping and cleaning assembly 643 includes a first cleaning block 6431, and the second wiping and cleaning assembly 644 includes a second cleaning block 6441. The drive sleeve 641 is sleeved on the base 6321 and can rotate along the axis of the base 6321 and slide up and down. The support frame 642 is installed in the limiting cavity 6411, which restricts the relative rotation of the support frame 642 and the drive sleeve 641, thereby allowing the support frame 642 to rotate synchronously with the drive sleeve 641. The support frame 642 can also slide up and down within the limiting cavity 6411. The first wiping and cleaning assembly 643 is installed on the support frame 642 and can slide up and down along the axis of the support frame 642, while also being able to slide up and down with the drive sleeve 645. The support frame 642 rotates, and the first cleaning block 6431 remains in contact with the first reference end face to wipe the first reference end face, thereby further improving the cleanliness of the first reference end face. The second wiping and cleaning assembly 644 is mounted on the support frame 642 and can also rotate with the support frame 642. The second cleaning block 6441 remains in contact with the second reference end face to wipe the second reference end face, thereby further improving the cleanliness of the second reference end face. The linkage shaft 645 is mounted between the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644 and is connected to the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644. It is used to control the first cleaning block 6431 and the second cleaning block 6441 to move synchronously along the radial direction of the support frame 642, so that the first cleaning block 6431 can exit the first reference end face and the second cleaning block 6441 can exit the second reference end face, thereby avoiding interference between the contact between the second reference end face and the first reference end face.

[0078] In use, the support plate 62 is fastened onto the wiping and cleaning device, so that the second reference end face contacts the second cleaning block 6441 and the first reference end face contacts the first cleaning block 6431, and a downward pressure is applied to the support plate 62. The downward pressure applied to the support plate 62 is transmitted to the drive sleeve 641 through the second wiping and cleaning assembly 644 and the support frame 642. Under the action of the downward pressure, the drive sleeve 641 rotates and slides downward along the axis of the seat 6321. The rotation of the drive sleeve 641 drives the support frame 642 to rotate, thereby driving the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644 to rotate, thereby controlling the first cleaning block 6431 to wipe the first reference end face and the second cleaning block 6441 to wipe the second reference end face.

[0079] Meanwhile, since the first reference end face is in contact with the first cleaning block 6431, the downward sliding of the first wiping and cleaning assembly 643 is restricted, thereby allowing the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644 to move relative to each other in the vertical direction, which in turn drives the linkage shaft 645 to rotate. The rotation of the linkage shaft 645 controls the first cleaning block 6431 and the second cleaning block 6441 to move synchronously along the radial direction of the drive sleeve 641. That is, before the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644 contact, the first cleaning block 6431 is controlled to exit the first reference end face, and the second cleaning block 6441 is controlled to exit the second reference end face, so as to avoid interference between the second reference end face and the first reference end face.

[0080] When the first wiping and cleaning assembly 643 and the second wiping and cleaning assembly 644 come into contact, the seat 6321, drive sleeve 641, support frame 642, first wiping and cleaning assembly 643, second wiping and cleaning assembly 644 and linkage shaft 645 will be locked, forming a rigidly connected whole. In order to prevent this rigidly connected whole from obstructing the contact between the second reference end face and the first reference end face, at this time, under the continuous action of the downward pressure, the support frame 642 slides into the limiting cavity 6411 to realize the retraction action, so that the second reference end face can contact the first reference end face and achieve precise positioning.

[0081] Preferably, the outer circumference of the base 6321 is further provided with a drive groove, and the drive groove is spirally arranged.

[0082] Preferably, the drive sleeve 641 is further provided with a first protrusion 6412. The first protrusion 6412 is disposed on the inner wall of the drive sleeve 641 and can be inserted into the drive groove and slide along the drive groove, so that the drive sleeve 641 can rotate along the axis of the seat 6321 and slide up and down when it is subjected to external force.

[0083] Preferably, such as Figure 7 As shown, the support frame 642 includes a support plate 6421, which is installed in the limiting cavity 6411 to restrict the relative rotation of the support frame 642 and the drive sleeve 641, so that the support frame 642 can rotate synchronously with the drive sleeve 641. At the same time, the support plate 6421 can slide up and down in the limiting cavity 6411, so that when the first wiping cleaning component 643 and the second wiping cleaning component 644 come into contact, the support plate 6421 slides into the limiting cavity 6411 to achieve a retraction action, ensuring that the second reference end face can contact the first reference end face and achieve precise positioning.

[0084] Preferably, the support frame 642 further includes a second elastic element 6422. One end of the second elastic element 6422 is fixedly connected to the support plate 6421, and the other end is fixedly installed in the limiting cavity 6411. The second elastic element 6422 is used to apply an elastic thrust to the support plate 6421. When the downward pressure applied to the support frame 642 is removed, the support plate 6421 can be controlled to automatically return to the initial position, so that the first cleaning block 6431 can contact the first reference end face.

[0085] Preferably, the support plate 6421 is provided with a ring seat groove 6423, which extends in the vertical direction.

[0086] Preferably, such as Figure 8 As shown, the first wiping and cleaning assembly 643 further includes a first mounting ring seat 6432 and a first linkage ring 6433. The first cleaning block 6431 and the first linkage ring 6433 are both mounted on the first mounting ring seat 6432. The first cleaning block 6431 can slide radially along the first mounting ring seat 6432, and the first linkage ring 6433 can rotate circumferentially on the first mounting ring seat 6432. The first linkage ring 6433 is also connected to the first cleaning block 6431; rotating the first linkage ring 6433 controls the first cleaning block 6431 to slide radially along the first mounting ring seat 6432. The first mounting ring seat 6432 is sleeved on the support plate 6421. The support plate 6421 restricts the rotation of the first mounting ring seat 6432 relative to the support frame 642, allowing the first mounting ring seat 6432 to rotate synchronously with the support frame 642. The first mounting ring seat 6432 can also slide up and down on the support plate 6421, keeping the first cleaning block 6431 in contact with the first reference end face. This enables the first cleaning block 6431 to rotate and wipe the first reference end face, and allows for synchronous control of the first cleaning block 6431 to move radially away from the axis of the first mounting ring seat 6432 until it exits the first reference end face, ensuring that the second reference end face can contact the first reference end face and achieve precise positioning.

[0087] Preferably, the first cleaning block 6431 is provided with a first cleaning end face and a first control groove, the first cleaning end face is in contact with the first reference end face and is used to wipe the first reference end face; the first control groove is a vortex groove.

[0088] Preferably, the first mounting ring seat 6432 is provided with a first cleaning block groove 64321, the first cleaning block groove 64321 extends radially along the first mounting ring seat 6432, the first cleaning block 6431 is installed in the first cleaning block groove 64321, and can slide radially along the first mounting ring seat 6432 within the first cleaning block groove 64321.

[0089] Preferably, the first mounting ring seat 6432 is further provided with an anti-rotation protrusion 64322. The anti-rotation protrusion 64322 is located in the ring seat groove 6423 and can slide along the ring seat groove 6423. The ring seat groove 6423 can restrict the relative rotation of the first mounting ring seat 6432 relative to the support frame 642, so that the first mounting ring seat 6432 can rotate synchronously with the support frame 642. This enables the control of the rotation of the first cleaning block 6431 to wipe the first reference end face, further improving the cleanliness of the first reference end face, thereby improving the positioning accuracy of the positioning fixture 6.

[0090] Preferably, the first mounting ring seat 6432 is further provided with a avoidance hole 64323 and a second protrusion 64324, the second protrusion 64324 being located inside the avoidance hole 64323.

[0091] Preferably, the first linkage ring 6433 is provided with a first linkage tooth and a first control slide rail. The first linkage tooth is disposed on the outer circumference of the first linkage ring 6433. The first control slide rail is disposed on the side of the first linkage ring 6433. The first control slide rail is a scroll type slide rail. The first control slide rail can slide in the first control groove, thereby driving the first cleaning block 6431 to slide radially along the first mounting ring seat 6432.

[0092] Preferably, such as Figure 9 As shown, the second wiping and cleaning assembly 644 further includes a second mounting ring seat 6442 and a second linkage ring 6443. The second cleaning block 6441 and the second linkage ring 6443 are both mounted on the second mounting ring seat 6442. The second cleaning block 6441 can slide radially along the second mounting ring seat 6442, and the second linkage ring 6443 can rotate circumferentially on the second mounting ring seat 6442. The second mounting ring seat 6442 is also connected to the second cleaning block 6441. Rotating the second mounting ring seat 6442 can control the second cleaning block 6441. 41. Slide along the radial direction of the second mounting ring seat 6442; the second mounting ring seat 6442 is fixedly mounted on the support plate 6421, so that the second mounting ring seat 6442 can rotate synchronously with the support frame 642, thereby realizing the rotation of the second cleaning block 6441 to wipe the second reference end face, and synchronously controlling the second cleaning block 6441 to move along the radial direction of the second mounting ring seat 6442 away from the axis of the second mounting ring seat 6442 until it exits the second reference end face, ensuring that the second reference end face can contact the first reference end face and achieve precise positioning.

[0093] Preferably, the second cleaning block 6441 is provided with a second cleaning end face and a second control slide, the second cleaning end face is in contact with the second reference end face and is used to wipe the second reference end face; the second control slide is a vortex slide.

[0094] Preferably, the second mounting ring seat 6442 is provided with a second cleaning block groove 64421, the second cleaning block groove 64421 extends radially along the second mounting ring seat 6442, the second cleaning block 6441 is installed in the second cleaning block groove 64421, and can slide radially along the second mounting ring seat 6442 within the second cleaning block groove 64421.

[0095] Preferably, the second linkage ring 6443 is provided with a second linkage tooth and a second control slide rail. The second linkage tooth is disposed on the outer circumference of the second linkage ring 6443. The second control slide rail is disposed on the side of the second linkage ring 6443. The second control slide rail is a scroll slide rail. The second control slide rail can slide in the second control groove, thereby driving the second cleaning block 6441 to slide radially along the second mounting ring seat 6442.

[0096] Preferably, one end of the linkage shaft 645 is rotatably connected to the first mounting ring seat 6432, and the other end passes through the avoidance hole 64323, so that the linkage shaft 645 can move closer to the first reference end face with the first mounting ring seat 6432.

[0097] Preferably, such as Figure 10 As shown, the linkage shaft 645 is provided with shaft teeth 6451 and shaft groove 6452. The first linkage teeth and the second linkage teeth both mesh with the shaft teeth 6451. The shaft groove 6452 is spirally arranged. The second protrusion 64324 is inserted into the shaft groove 6452 and can slide along the shaft groove 6452. This allows the linkage shaft 645 to rotate simultaneously as it moves closer to the first reference end face with the first mounting ring seat 6432. This drives the first linkage ring 6433 and the second linkage ring 6443 to rotate synchronously. This, in turn, controls the first cleaning block 6431 to move radially away from the first mounting ring seat 6432 until it exits the first reference end face. Simultaneously, it controls the first cleaning block 6431 to move radially away from the second mounting ring seat 6442 until it exits the second reference end face. This ensures that the second reference end face can contact the first reference end face, achieving precise positioning.

[0098] Preferably, the wiping and cleaning device further includes a third elastic element 646, which is sleeved on the base 6321. One end of the third elastic element 646 is fixedly connected to the base 6321, and the other end is rotatably connected to the drive sleeve 641. The third elastic element 646 is used to apply an elastic thrust to the drive sleeve 641 at all times. When the downward pressure on the wiping and cleaning device is removed, the drive sleeve 641 is pushed to rotate and slide upward along the axis of the base 6321 under the action of the elastic thrust of the third elastic element 646, so that the drive sleeve 641 returns to the initial position, and at the same time drives the second wiping and cleaning assembly 644 to return to the initial state.

[0099] Preferably, the wiping and cleaning device further includes a fourth elastic element (not shown in the figure). The fourth elastic element is sleeved on the support frame 642. One end of the fourth elastic element is connected to the first mounting ring seat 6432, and the other end is connected to the second mounting ring seat 6442. The fourth elastic element is used to always apply an elastic thrust to the first mounting ring seat 6432. When the downward pressure on the wiping and cleaning device is removed and the second wiping and cleaning assembly 644 returns to its initial state, the elastic thrust of the fourth elastic element simultaneously pushes the first wiping and cleaning assembly 643 back to its initial state.

[0100] Preferably, the first elastic element 6324, the second elastic element 6422, the third elastic element 646 and the fourth elastic element are all springs.

[0101] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for processing thin-walled compartment sections, characterized in that, Includes the following steps: Step S1: Install the clamping fixture on the machine tool worktable; Step S2: The section to be processed is installed onto the clamping fixture, so that the section to be processed and the clamping fixture form a rigid whole; Step S3: Machin the inner cavity surface of the section to be machined; The mounting fixture on the machine tool workbench specifically includes: installing the positioning plate (61) onto the machine tool workbench and positioning the positioning plate (61) so that the zero point of the positioning plate (61) coincides with the zero point of the machine tool workbench; The section to be processed is installed onto the clamping fixture, specifically including: according to the size of the section to be processed, the first fixture (1), the second fixture (2), the first stabilizer (3), the second stabilizer (4) and the turntable mechanism (5) are installed onto the support plate (62); The section to be processed is installed on the clamping fixture, which specifically includes: passing the section to be processed through the turntable mechanism (5), and fixing the section to be processed on the turntable mechanism (5) by the first fixture (1) and the second fixture (2); The section to be processed is installed on the clamping fixture, which further includes: connecting the first stabilizer (3) and the second stabilizer (4) to the first fixture (1) and the second fixture (2) respectively to support the two ends of the section to be processed; The section to be processed is installed onto the clamping fixture, which specifically includes: adjusting the zero point of the section to be processed so that the zero point of the section to be processed coincides with the support plate (62); The section to be processed is installed onto the clamping fixture, which further includes: loading the support plate (62) for installing the section to be processed onto the positioning plate (61); The clamping fixture includes a positioning fixture (6), which is used for zero-point positioning of the chamber to be processed; The positioning and fixing device (6) includes a positioning plate (61), a support plate (62), a positioning and locking mechanism (63), and a cleaning mechanism (64). The positioning plate (61) is provided with a first gas passage, which is connected to external compressed air. The positioning and locking mechanism (63) includes a first reference end face, a second reference end face, a locking pin (631), and a locking mechanism (632); the second reference end face and the locking pin (631) are both disposed on the support plate (62); the second reference end face is disposed opposite to the first reference end face, and the second reference end face can contact the first reference end face; the locking pin (631) is located on the second reference end face and can be inserted into the locking mechanism (632), the locking mechanism (632) is used to position and lock the inserted locking pin (631); the locking mechanism (632) includes a base (6321), one end of the base (6321) is fixedly connected to the positioning plate (61), and the other end is the first reference end face; The cleanroom mechanism (64) includes a purge cleanroom device, which includes an air connection chamber (6312), a first air outlet (6313), a second air outlet (6314), and a third gas passage. The third gas passage is disposed on the base (6321). The air connection chamber (6312), the first air outlet (6313), and the second air outlet (6314) are all disposed on the locking post (631). Compressed gas is filled into the air connection chamber (6312) through the first gas passage and the third gas passage. The first air outlet (6313) and the second air outlet (6314) are both connected to the air connection chamber (6312). The first air outlet (6313) is used to purge the first reference end face to keep the first reference end face clean. The second air outlet (6314) is used to purge the second reference end face to keep the second reference end face clean.

2. The processing method for a thin-walled compartment according to claim 1, characterized in that, The machining of the inner cavity surface of the section to be machined specifically includes: after adjusting the machine tool tool and aligning it, starting the turntable mechanism (5) to drive the section to be machined to rotate, first machining the inner cavity at one end of the section, after machining is completed, the machine tool worktable rotates 180°, and continues to machine the inner cavity at the other end of the section until machining is completed.

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