Inner cavity machining method

Abstract

The invention discloses an inner cavity machining method, relates to the technical field of cavity machining, and aims to solve the problem of low machining efficiency of an inner cavity workpiece in the prior art. The invention discloses an inner cavity machining method which adopts an inner cavity workpiece clamping device and an angle head quick-change machine tool and comprises the following steps: S1, adjusting the inner cavity workpiece clamping device; s2, an inner cavity workpiece is fixed through an inner cavity workpiece clamping device; s3, the fixed inner cavity workpiece is placed on an angle head quick-change machine tool; and S4, an angle head quick-change machine tool is used for machining the inner cavity workpiece. According to the inner cavity machining method, the machining efficiency of the inner cavity workpiece can be effectively improved, and the machining process of the inner cavity workpiece is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of cavity processing, and in particular to a method for processing an inner cavity. Background Art

[0002] Inner cavity processing is of great significance to the functional realization of structures such as aircraft cabins and engine cylinders. It can reduce weight, optimize internal structure, and improve material utilization.

[0003] Inner cavity processing is an important link in mechanical processing. Since the outer surface of the inner cavity workpiece has different shapes and only the end face has a regular shape, the processing of the inner cavity workpiece has the problems of difficult clamping and difficult surface processing.

[0004] At present, in the processing of inner cavity workpieces, the inner cavity feature processing is often carried out in the form of horizontal machine tool elbow processing. The connection between the angle head and the machine tool spindle is weak in rigidity and the speed is limited. The clamping and fixing stability of the inner cavity is insufficient, which seriously restricts the processing efficiency of the inner cavity workpiece. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide an inner cavity processing method to solve the problem of low processing efficiency of inner cavity workpieces in the prior art.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] The present invention discloses an inner cavity processing method, which adopts an inner cavity workpiece clamping device and an angle head quick-change machine tool, and includes the following steps:

[0008] S1: Adjust the inner cavity workpiece clamping device;

[0009] S2: Use the inner cavity workpiece clamping device to fix the inner cavity workpiece;

[0010] S3: Place the fixed inner cavity workpiece on the angle head quick change machine tool.

[0011] Furthermore, the method further comprises the following steps:

[0012] S4: Use the angle head quick-change machine tool to process the inner cavity workpiece.

[0013] Furthermore, the angle head quick-change machine tool includes a beam assembly, a connecting plate, an angle head quick-change unit and a spindle box.

[0014] Furthermore, in step S4, the angle head quick-change unit is selected according to the processing requirements of the inner cavity workpiece.

[0015] Furthermore, the angle head quick-change unit includes a flange tray.

[0016] Furthermore, in step S4, the flange tray is connected to the connecting plate, so that the angle head quick change unit is connected to the spindle box.

[0017] Furthermore, the inner cavity workpiece clamping device includes a base, an adjustment unit and a clamping and fixing unit.

[0018] Furthermore, step S1 specifically includes:

[0019] S11: Adjust the regulating unit;

[0020] S12: Adjust the clamping unit.

[0021] Furthermore, the method further comprises the following steps:

[0022] S5: Separate the inner cavity workpiece from the inner cavity workpiece clamping device.

[0023] Furthermore, step S5 specifically includes:

[0024] S51: releasing the inner cavity workpiece clamping device from fixing the inner cavity workpiece;

[0025] S52: Lift the inner cavity workpiece away from the inner cavity workpiece clamping device.

[0026] Furthermore, the adjustment unit includes an adjusting gear disc, a limiting arc block, a connecting rod assembly, a gear and a driving handle. The adjusting gear disc and the gear are connected to the base through bearings. The limiting arc block is connected to the adjusting gear disc through the connecting rod assembly. The limiting arc block forms a circular structure. The gear is engaged with the adjusting gear disc. The driving handle is connected to the gear for driving the gear to rotate, and the adjusting gear disc is driven to rotate by the rotation of the gear.

[0027] Furthermore, multiple sliding grooves are set on the adjusting gear disc, and the connecting rod assembly includes a connecting rod and a moving rod. One end of the connecting rod is connected to the limiting arc block, and the other end is connected to the moving rod. The moving rod is set in the sliding groove and can move along the sliding groove. A pad is set on the limiting arc block for placing the inner cavity workpiece.

[0028] Furthermore, a fixed push rod is provided on the gear, and a fixed groove is provided on the base. The fixed push rod passes through the gear and can enter the fixed groove. A spring ball pin is provided on the fixed push rod, and a ball pin hole is provided in the fixed groove. The spring ball pin can enter the ball pin hole to fix the connection between the fixed push rod and the fixed groove.

[0029] Furthermore, the beam assembly includes a sliding block, a screw and a beam. The sliding block is connected to the spindle box, the screw is connected to the beam, the sliding block is connected to the beam through the screw, and the screw is connected to the motor. The motor drives the screw to rotate to enable the sliding block to move along the beam.

[0030] Furthermore, the angle head quick change unit includes a flange tray, a transmission part, a connecting cutter head and a spindle. The flange tray is fixed on the spindle. The spindle passes through the flange tray and is connected to the transmission part. The flange tray is connected to the connecting plate. The spindle enters the spindle box. A servo motor is installed in the spindle. The servo motor drives the connecting cutter head to rotate through the transmission part.

[0031] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0032] (1) The inner cavity processing method provided by the present invention realizes the fixation and processing of the inner cavity workpiece by adopting an inner cavity workpiece clamping device and an angle head quick change machine tool. The inner cavity workpiece is clamped by the inner cavity workpiece clamping device, and the inner cavity workpiece clamping device is capable of clamping inner cavity workpieces of different shapes by adjusting the adjustment unit and the clamping fixing unit. It has universality and adjustability and does not need to be specially made according to the inner cavity workpiece, thereby saving costs and materials and providing improved material recycling rate. The inner cavity workpiece clamping device can align and clamp the inner cavity workpiece, so that the inner cavity workpiece can be processed by the angle head quick change machine tool, without the need for manual measurement and marking methods for alignment. It is simple to operate, saves a lot of manpower, can effectively improve the processing efficiency of the inner cavity workpiece, and optimize the processing process of the inner cavity workpiece.

[0033] (2) The inner cavity processing method provided by the present invention processes the inner cavity workpiece by setting up an angle head quick-change machine tool. The angle head quick-change machine tool includes an angle head quick-change unit. The angle head quick-change unit is connected to the spindle box through a connecting plate. The spindle box can move along the crossbeam assembly, thereby driving the angle head quick-change unit to move, so that the position of the angle head quick-change unit is adapted to the inner cavity workpiece; a servo motor is set in the spindle, and the servo motor drives the connecting tool head to rotate through the transmission part, thereby processing the inner cavity workpiece. The spindle can make the angle head quick-change unit independently drive the connecting tool head to rotate without relying on the power supply of the machine tool, thereby improving the independence of the angle head quick-change unit, speeding up the replacement speed of the angle head quick-change unit, and being easy to operate. It can process inner cavity workpieces of different sizes and specifications, thereby improving the adaptability and processing efficiency of the inner cavity workpiece. By providing multiple angle head quick-change units with different transmission portion lengths, the appropriate angle head quick-change unit can be selected according to the angle required for processing the inner cavity workpiece. By providing multiple angle head quick-change units with different angles between the transmission portion and the connecting cutter head, the appropriate angle head quick-change unit can be selected according to the angle required for processing the inner cavity workpiece. By providing water, electricity, gas and other pipeline joints on the crossbeam and water, electricity, gas and other pipeline interfaces on the flange tray, when the angle head quick-change unit is replaced, the water, electricity, gas and other pipelines can be replaced simultaneously, realizing the synchronous replacement of the angle head quick-change unit and the water, electricity, gas and other pipelines.

[0034] (3) The inner cavity processing method provided by the present invention clamps and fixes the inner cavity workpiece through the inner cavity workpiece clamping device, thereby increasing the stability of the inner cavity workpiece clamping and fixing, improving the processing efficiency of the inner cavity workpiece, shortening the processing time of the inner cavity workpiece, and reducing the manual error in the inner cavity workpiece processing process. By rotating the driving handle, the gear drives the adjusting gear disk to rotate, and the shape and size of the circular ring structure composed of the limiting arc block are adjusted, so that the circular ring structure composed of the limiting arc block is adapted to the inner cavity workpieces of different sizes. The inner cavity workpiece is placed on the pad block, and the driving handle is rotated to make the limiting arc block close to the outer wall of the end frame of the inner cavity workpiece, and the inner cavity workpiece is positioned, thereby realizing automatic positioning and alignment of the inner cavity workpiece, without the need for manual marking, clamping and adjustment, and is not affected by the shape of the outer surface of the inner cavity workpiece. By setting the adjustment unit, the inner cavity workpiece clamping device can adapt to inner cavity workpieces of different diameters, which is easy to operate and has strong applicability. By fixing the pressing rod and the base, the limiting arc block can be prevented from being displaced during the limiting process of the inner cavity workpiece, so that the limiting arc block is close to the outer wall of the end frame of the inner cavity workpiece, thereby achieving the positioning and alignment of the inner cavity workpiece, improving the clamping effect of the inner cavity workpiece, and increasing the stability and safety of the inner cavity workpiece processing. The inner cavity workpiece can be pressed by the clamping fixing unit, a movable groove is provided on the pressure plate, and a connecting head is provided on the first pressure rod. The connecting head enters the movable groove, and the position of the pressure plate can be adjusted by adjusting the movable groove along the connecting head, so that the pressure plate can press inner cavity workpieces of different shapes. The tightening bolt is connected to the connecting head, and the connection between the first pressure rod and the pressure plate can be fixed by the tightening bolt, so that the pressure plate can press the inner cavity workpiece. The fixing operation of the inner cavity workpiece is simple, the structure is stable, the processing efficiency of the inner cavity workpiece is improved, and manpower is saved.

[0035] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the embodiments of the description and the contents particularly pointed out in the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are only used for the purpose of illustrating the particular invention and are not to be considered as limiting the invention. Like reference symbols denote like components throughout the drawings.

[0037] Figure 1 Schematic diagram of the process of the inner cavity processing method of the present invention;

[0038] Figure 2 Schematic diagram of the overall structure of the inner cavity workpiece clamping device of the present invention;

[0039] Figure 3 It is a structural schematic diagram of the regulating unit of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the clamping and fixing unit of the present invention;

[0041] Figure 5 This is a schematic structural diagram of the connection between the fixed push rod and the fixed slot of the present invention;

[0042] Figure 6 It is a partial structural schematic diagram of the angle head quick-change machine tool of the present invention;

[0043] Figure 7 It is a structural schematic diagram of the angle head quick-change unit of the present invention.

[0044] Reference numerals:

[0045] 1-base; 11-fixing groove; 111-ball pin hole; 2-adjusting unit; 21-adjusting gear disc; 211-slide groove; 22-limiting arc block; 221-pad block; 23-connecting rod assembly; 231-connecting rod; 232-moving rod; 24-gear; 241-fixing push rod; 2411-spring ball pin; 25-driving handle; 3-clamping and fixing unit; 31-pressure plate; 311-moving groove; 32-pressure rod assembly; 321-first pressure rod; 322-second pressure rod; 33-fastening bolt; 34-cover; 4-inner cavity workpiece; 5-beam assembly; 51-sliding block; 52-screw; 53-beam; 6-connecting plate; 7-angle head quick change unit; 71-flange tray; 72-transmission part; 73-connecting tool head; 74-spindle; 8-spindle box. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the present invention.

[0047] This embodiment provides an inner cavity processing method, which uses an inner cavity workpiece clamping device and an angle head quick change machine tool, such as Figure 1 As shown, taking the inner cavity workpiece 4 with a circular end frame as an example, the process includes the following steps:

[0048] S1: Adjust the inner cavity workpiece clamping device;

[0049] S2: Fix the inner cavity workpiece 4 using the inner cavity workpiece clamping device;

[0050] S3: placing the fixed inner cavity workpiece 4 on the angle head quick change machine tool;

[0051] S4: Use the angle head quick change machine tool to process the inner cavity workpiece 4;

[0052] S5: Separate the inner cavity workpiece 4 from the inner cavity workpiece clamping device.

[0053] like Figure 2 As shown, the inner cavity workpiece clamping device includes a base 1, an adjusting unit 2 and a clamping and fixing unit 3. The adjusting unit 2 is arranged on the base 1, and the clamping and fixing unit 3 is connected to the base 1. The adjusting unit 2 can be adjusted according to the inner cavity workpiece 4 of different diameters, and the clamping and fixing unit 3 can fix the inner cavity workpiece 4.

[0054] Furthermore, step S1 specifically includes:

[0055] S11: Adjust the regulating unit 2;

[0056] S12: Adjust the clamping and fixing unit 3.

[0057] like Figure 3 As shown, the adjustment unit 2 includes an adjustment toothed disc 21, a limiting arc block 22, a connecting rod assembly 23, a gear 24, and a driving handle 25. The adjustment toothed disc 21 and the gear 24 are both connected to the base 1 via bearings. The limiting arc block 22 is connected to the adjustment toothed disc 21 via the connecting rod assembly 23. There are multiple limiting arc blocks 22, which cooperate with each other to form a circular ring structure for fixing the inner cavity workpiece 4. The gear 24 meshes with the adjustment toothed disc 21, and the driving handle 25 is connected to the gear 24 to drive the gear 24 to rotate. The rotation of the gear 24 drives the adjustment toothed disc 21 to rotate.

[0058] Furthermore, a plurality of chutes 211 are provided on the adjusting toothed disc 21, and the number of chutes 211 is the same as the number of the limiting arc blocks 22. The connecting rod assembly 23 includes a connecting rod 231 and a moving rod 232. One end of the connecting rod 231 is connected to the limiting arc block 22, and the other end is connected to the moving rod 232. The moving rod 232 is provided in the chutes 211. When the adjusting toothed disc 21 rotates, the moving rod 232 can move along the chutes 211, thereby driving the limiting arc block 22 to move, causing the circular ring structure formed by the limiting arc blocks 22 to expand or shrink. A padding block 221 is provided on the limiting arc block 22 for placing the inner cavity workpiece 4. The height of the padding block 221 is not less than the height of the connecting rod 231, so as to avoid affecting the movement of the connecting rod 231.

[0059] In step S11 , specifically, the driving handle 25 is rotated according to the end frame diameter of the inner cavity workpiece 4 , so that the gear 24 drives the adjusting toothed disc 21 to rotate, and the shape and size of the circular ring structure formed by the limiting arc block 22 are adjusted.

[0060] Preferably, a control motor is provided in the driving handle 25, and the control motor drives the driving handle 25 to rotate, thereby causing the gear 24 to rotate along with the driving handle 25. Exemplarily, the control motor is controlled by a remote controller.

[0061] like Figures 3 and 4As shown, the clamping and fixing unit 3 includes a pressure plate 31, a pressure rod assembly 32, a tightening bolt 33, and a cover 34. The pressure rod assembly 32 is fixedly connected to the cover 34, and the pressure plate 31 is connected to the pressure rod assembly 32 and fixed by the tightening bolt 33. The pressure plate 31 is used to fix the inner cavity workpiece 4. The cover 34 is connected to the base 1. The adjustment gear plate 21 and the gear 24 are disposed within the cover 34. The driving handle 25 passes through the cover 34 and is connected to the cover 34 via a bearing seat. The cover 34 is provided with a through slot 341. The connecting rod 231 passes through the through slot 341 and is connected to the limit arc block 22.

[0062] Furthermore, the pressure rod assembly 32 includes a first pressure rod 321 and a second pressure rod 322. One end of the first pressure rod 321 is connected to the pressure plate 31, and the other end is connected to the second pressure rod 322. The second pressure rod 322 is connected to the cover body 34. The first pressure rod 321 and the second pressure rod 322 form a telescopic structure, so that the height of the pressure rod assembly 32 can be adjusted according to the height of the inner cavity workpiece 4.

[0063] For example, the first pressure rod 321 is a hollow structure, and the first pressure rod 321 is threadedly connected to the second pressure rod 322, so that the second pressure rod 322 can enter the cavity of the first pressure rod 321. By rotating the first pressure rod 321 so that the second pressure rod 322 enters the cavity of the first pressure rod 321, the height of the pressure rod assembly 32 can be adjusted.

[0064] Furthermore, a movable groove 311 is provided on the pressure plate 31, and a connecting head is provided on the first pressure rod 321. The connecting head enters the movable groove 311, and the position of the pressure plate 31 can be adjusted by adjusting the movable groove 311 along the connecting head; the tightening bolt 33 is connected to the connecting head, and the connection between the first pressure rod 321 and the pressure plate 31 can be fixed by the tightening bolt 33, so that the pressure plate 31 can press the inner cavity workpiece 4.

[0065] In step S12 , specifically, the height of the pressure rod assembly 32 is adjusted so that the height of the pressure rod assembly 32 matches the height of the inner cavity workpiece 4 .

[0066] Furthermore, step S2 specifically includes:

[0067] S21: Positioning the inner cavity workpiece 4;

[0068] S22: Press the inner cavity workpiece 4 by the clamping and fixing unit 3.

[0069] In step S21 , specifically, the inner cavity workpiece 4 is placed on the pad block 221 , and the driving handle 25 is rotated to make the limiting arc block 22 close to the outer wall of the end frame of the inner cavity workpiece 4 to position the inner cavity workpiece 4 .

[0070] Preferably, Figure 5As shown, a fixing rod 241 is provided on the gear 24 , and a fixing groove 11 is provided on the base 1 . The fixing rod 241 penetrates the gear 24 and can enter the fixing groove 11 , thereby connecting the fixing rod 241 to the base 1 to fix the gear 24 .

[0071] Furthermore, a spring ball pin 2411 is provided on the fixed push rod 241, and a ball pin hole 111 is provided in the fixed groove 11. The position and shape of the ball pin hole 111 match the spring ball pin 2411, thereby fixing the fixed push rod 241 to the base 1, thereby fixing the fixed gear 24, preventing the gear 24 from rotating, and further preventing the adjustment gear plate 21 from rotating, thereby maintaining the fixed arc block 22. The fixed push rod 241 is connected to the gear 24 by a spring. The spring supports the fixed push rod 241, preventing the fixed push rod 241 from entering the fixed groove 11, thereby allowing the gear 24 to rotate with the driving handle 25. When the adjustment of the limiting arc block 22 is completed, the fixed push rod 241 is pressed to make the fixed push rod 241 enter the fixed groove 11, and the groove wall of the fixed groove 11 squeezes the spring ball pin 2411, so that the spring ball pin 2411 enters the fixed push rod 241. When the position of the spring ball pin 2411 is moved to correspond to the ball pin hole 111, the spring ball pin 2411 is reset and enters the ball pin hole 111, thereby fixing the connection between the fixed push rod 241 and the fixed groove 11, so that the gear 24 and the base 1 remain fixed, preventing the gear 24 from rotating and driving the adjusting gear disc 21 to rotate, thereby driving the limiting arc block 22 to move. By fixing the push rod 2411 and the base 1, the limiting arc block 22 can be prevented from being displaced during the limiting and alignment process of the inner cavity workpiece 4, so that the limiting arc block 22 is close to the outer wall of the end frame of the inner cavity workpiece 4, thereby realizing the positioning and alignment of the inner cavity workpiece 4, improving the clamping effect of the inner cavity workpiece 4, and increasing the stability and safety of the processing of the inner cavity workpiece 4.

[0072] In step S22, specifically, the first pressure rod 321 is connected to the pressure plate 31, so that the first pressure rod 321 enters the movable groove 311, and the position of the pressure plate 31 is adjusted so that the pressure plate 31 can press the inner cavity workpiece 4. The connection between the first pressure rod 321 and the pressure plate 31 is tightened by the tightening bolt 33, so that the pressure plate 31 fixes the inner cavity workpiece 4.

[0073] In step S3 , specifically, the inner cavity workpiece 4 fixed by the inner cavity workpiece clamping device is hoisted, so that the base 1 is displaced onto the processing table of the angle head quick-change machine tool.

[0074] Further, if Figure 6As shown, the angle head quick-change machine tool includes a crossbeam assembly 5, a connecting plate 6, an angle head quick-change unit 7 and a spindle box 8. One end of the spindle box 8 is connected to the crossbeam assembly 5, and the other end is connected to the connecting plate 6. The angle head quick-change unit 7 is connected to the spindle box 8 through the connecting plate 6. The spindle box 8 can move along the crossbeam assembly 5, thereby driving the angle head quick-change unit 7 to move, and the inner cavity workpiece 4 is processed through the angle head quick-change unit 7.

[0075] Furthermore, the crossbeam assembly 5 includes a sliding block 51, a lead screw 52 and a crossbeam 53. The sliding block 51 is connected to the spindle box 8, and the lead screw 52 is connected to the crossbeam 53. The sliding block 51 is connected to the crossbeam 53 through the lead screw 52. By driving the lead screw 52 to rotate, the sliding block 51 can be moved along the crossbeam 53, thereby driving the spindle box 8 to move along the crossbeam 53.

[0076] Preferably, the lead screw 52 is connected to a motor, and the motor drives the lead screw 52 to rotate, which enables the sliding block 51 to move along the crossbeam 53 , thereby driving the spindle box 8 to move along the crossbeam 53 .

[0077] Further, if Figure 7 As shown, the angle head quick-change unit 7 includes a flange tray 71, a transmission part 72, a connecting cutter head 73 and a spindle 74. The flange tray 71 is fixed on the spindle 74. The spindle 74 passes through the flange tray 71 and is connected to the transmission part 72. The flange tray 71 is connected to the connecting plate 6, so that the spindle 74 enters the spindle box 8 and can move along the crossbeam 53 with the spindle box 8. A servo motor is installed in the spindle 74, and the servo motor drives the connecting cutter head 73 to rotate through the transmission part 72, so that the inner cavity workpiece 4 is processed through the cutter head.

[0078] Preferably, the angle head quick-change unit 7 is provided with a plurality of transmission parts 72 of different lengths, so that an appropriate angle head quick-change unit 7 can be selected according to the length required for processing the inner cavity workpiece 4.

[0079] Preferably, the angle head quick change unit 7 is provided with a plurality of different angles between the transmission portion 72 and the connecting tool head 73 , so that an appropriate angle head quick change unit 7 can be selected according to the angle required for processing the inner cavity workpiece 4 .

[0080] Preferably, gear discs are provided in both the flange tray 71 and the connecting disc 6 , and the quick-alignment angle head quick-change unit 7 can be positioned quickly through the engagement between the gear discs.

[0081] Preferably, the angle head quick-change machine tool further includes an angle head quick-change unit library, so that the angle head quick-change unit 7 suitable for processing the inner cavity workpiece 4 can be quickly matched according to the processing requirements of the inner cavity workpiece 4.

[0082] For example, the angle head quick-change unit library can adopt the tool magazine structure of the machine tool in the prior art, such as a disc-type tool magazine.

[0083] Exemplarily, the angle head quick-change unit library adopts a rotation library structure or an array library structure.

[0084] In step S4, specifically, the angle head quick-change unit 7 is selected according to the processing requirements of the inner cavity workpiece 4, the flange tray 71 and the connecting plate 6 are connected, the angle head quick-change unit 7 is connected to the spindle box 8, the lead screw 52 is driven to move the angle head quick-change unit 7 along the beam 53, and the connecting tool head 73 is driven to rotate by the servo motor in the spindle 74 to process the inner cavity workpiece 4.

[0085] Preferably, water, electricity, gas and other pipeline joints are provided on the crossbeam 53, and water, electricity, gas and other pipeline interfaces are provided on the flange plate 71, so that when the angle head quick-change unit 7 is replaced, the water, electricity, gas and other pipelines can be replaced simultaneously, thereby achieving the simultaneous replacement of the angle head quick-change unit 7 and the water, electricity, gas and other pipelines. The removal and connection of water, electricity, gas and other pipelines on the machine tool are all existing technologies and will not be repeated here.

[0086] Exemplarily, the angle head quick change machine tool adopts a vertical machine tool structure; exemplary, the structure of the angle head quick change machine tool can adopt a gantry structure, a truss structure or a C-shaped structure.

[0087] Specifically, step S5 includes the following steps:

[0088] S51: releasing the inner cavity workpiece 4 from being fixed by the inner cavity workpiece clamping device;

[0089] S52: Lift the inner cavity workpiece 4 away from the inner cavity workpiece clamping device.

[0090] In step S51 , specifically, the fastening bolt 33 is rotated to separate the fastening bolt 33 from the connector, and the pressing plate 31 is moved out to release the clamping of the inner cavity workpiece 4 .

[0091] In step S52 , specifically, the inner cavity workpiece 4 is lifted by an existing lifting device, so that the inner cavity workpiece 4 leaves the padding block 221 , and the inner cavity workpiece 4 is transferred to the next process.

[0092] The above description is only a preferred specific 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 thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for processing an inner cavity, characterized in that: The use of an inner cavity workpiece clamping device and an angle head quick change machine tool includes the following steps: S1: Adjust the inner cavity workpiece clamping device; S2: Use the inner cavity workpiece clamping device to fix the inner cavity workpiece; S3: Place the fixed inner cavity workpiece on the angle head quick change machine tool.

2. The inner cavity processing method according to claim 1, characterized in that: The following steps are also included: S4: Use the angle head quick-change machine tool to process the inner cavity workpiece.

3. The inner cavity processing method according to claim 2, characterized in that: The angle head quick-change machine tool comprises a crossbeam assembly, a connecting plate, an angle head quick-change unit and a spindle box.

4. The inner cavity processing method according to claim 3, characterized in that: In step S4, the angle head quick-change unit is selected according to the processing requirements of the inner cavity workpiece.

5. The inner cavity processing method according to claim 4, characterized in that: The angle head quick-change unit includes a flange tray.

6. The inner cavity processing method according to claim 5, characterized in that: In step S4, the flange plate and the connecting plate are connected to connect the angle head quick change unit to the spindle box.

7. The inner cavity processing method according to claim 1, characterized in that: The inner cavity workpiece clamping device comprises a base, an adjusting unit and a clamping and fixing unit.

8. The inner cavity processing method according to claim 7, characterized in that: Step S1 specifically includes: S11: Adjust the regulating unit; S12: Adjust the clamping unit.

9. The inner cavity processing method according to claim 7, characterized in that: The following steps are also included: S5: Separate the inner cavity workpiece from the inner cavity workpiece clamping device.

10. The inner cavity processing method according to claim 9, characterized in that: Step S5 specifically includes: S51: releasing the inner cavity workpiece clamping device from fixing the inner cavity workpiece; S52: Lift the inner cavity workpiece away from the inner cavity workpiece clamping device.

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