A clamping tool for machining the inner cavity of a large-size cabin

Abstract

The present application relates to a kind of clamping tool for large size cabin inner cavity processing, belong to the field of machining, solve the problem of unstable clamping of large size cabin in prior art, processing tremor is big, influence machining precision.The present application includes first clamping unit, second clamping unit and hollow rotary table unit, hollow rotary table unit can be set on the cabin to be processed;First clamping unit and second clamping unit are connected with hollow rotary table unit, first clamping unit is used to fix one end of the cabin to be processed on hollow rotary table unit, second clamping unit is used to fix the other end of the cabin to be processed on hollow rotary table unit, hollow rotary table unit is used to drive the cabin to be processed to rotate.The present application realizes the fixation of the cabin to be processed on hollow rotary table unit, makes the cabin to be processed and hollow rotary table unit and form a rigid whole, to improve the clamping stability of the cabin to be processed, prevent tremor during processing, and then improve machining precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining, in particular to a clamping tool for machining the inner cavity of a large-size cabin. BACKGROUND

[0002] Large-size thin-walled cabin section parts: due to the thin-walled structure, the cabin has poor rigidity, and is prone to vibration during machining of the inner cavity. The cutting force generated during cutting causes deformation of the thin-walled structure, and the machining precision cannot be guaranteed. SUMMARY

[0003] In view of the above analysis, the present application aims to provide a clamping tool for machining the inner cavity of a large-size cabin, to solve the problem of unstable clamping of a large-size cabin, large machining vibration and influence on machining precision in the prior art.

[0004] The purpose of the present application is mainly realized through the following technical solutions:

[0005] A clamping tool for machining the inner cavity of a large-size cabin, comprising a first clamping unit, a second clamping unit and a hollow turntable unit, the hollow turntable unit being capable of being fitted on a cabin to be machined; the first clamping unit and the second clamping unit are arranged on both sides of the hollow turntable unit and connected with the hollow turntable unit, the first clamping unit being used to mount and fix one end of the cabin to be machined on the hollow turntable unit, the second clamping unit being used to mount and fix the other end of the cabin to be machined on the hollow turntable unit, and the hollow turntable unit being used to drive the cabin to be machined to rotate.

[0006] Further, the hollow turntable unit comprises a housing, a turntable body and a drive motor, the turntable body being arranged on the housing and being in rotational connection with the housing; the drive motor is connected with the turntable body and is used to drive the turntable body to rotate.

[0007] Further, the first clamping unit comprises a first flange and a first pull rod, the first flange being fixedly connected with one end of the cabin to be machined; one end of the first pull rod is fixedly connected with the first flange, and the other end is fixedly connected with the turntable body.

[0008] Further, the second clamping unit comprises a second flange and a second pull rod, the second flange being fixedly connected with the other end of the cabin to be machined; one end of the second pull rod is fixedly connected with the second flange, and the other end is fixedly connected with the turntable body.

[0009] Further, the clamping tool further comprises a first supporting unit and a second supporting unit, the first supporting unit being used to support the first flange, and the second supporting unit being used to support the second flange.

[0010] Further, the first supporting unit comprises a first supporting frame and a first supporting roller, the first supporting frame is connected with the machine tool workbench, and the first supporting roller is installed on the first supporting frame and used for supporting the first flange.

[0011] Further, the second supporting unit comprises a second supporting frame and a second supporting roller, the second supporting frame is connected with the machine tool workbench, and the second supporting roller is installed on the first supporting frame and used for supporting the second flange.

[0012] Further, the first pull rod and the second pull rod are both provided with a plurality of rods, and the first supporting roller and the second supporting roller are both provided with a plurality of groups.

[0013] Further, the positioning unit is used for quickly positioning the zero point of the to-be-processed cabin body.

[0014] Further, the positioning unit is used for quickly positioning the zero point of the to-be-processed cabin body.

[0015] The technical scheme of the present application can at least achieve one of the following effects:

[0016] (1) The present application provides a clamping tool for machining the inner cavity of a large-size cabin body, which comprises a first clamping unit, a second clamping unit and a hollow rotary table unit, the hollow rotary table unit can be sleeved on the to-be-processed cabin body; the first clamping unit and the second clamping unit are arranged on the two sides of the hollow rotary table unit and connected with the hollow rotary table unit, the first clamping unit is used for mounting and fixing one end of the to-be-processed cabin body on the hollow rotary table unit, the second clamping unit is used for mounting and fixing the other end of the to-be-processed cabin body on the hollow rotary table unit, and the hollow rotary table unit is used for driving the to-be-processed cabin body to rotate; the first clamping unit and the second clamping unit are used to mount and fix the two ends of the to-be-processed cabin body on the hollow rotary table unit, so that the first clamping unit, the second clamping unit, the hollow rotary table unit and the to-be-processed cabin body form a rigid whole, thereby improving the clamping stability of the to-be-processed cabin body, preventing vibration during the machining of the inner cavity of the to-be-processed cabin body, and improving the machining precision.

[0017] (2) The first support unit and the second support unit are arranged, the first support unit comprises a first support frame and a first support roller, the first support roller is installed on the first support frame, and two groups of the first support rollers are arranged to support the first flange; the second support unit comprises a second support frame and a second support roller, the second support roller is installed on the first support frame, and two groups of the second support rollers are arranged to support the second flange; the first support unit and the second support unit are arranged to support the two ends of the to-be-processed cabin body, the stability of the clamping of the to-be-processed cabin body is further improved, the to-be-processed cabin body is prevented from shaking and deforming during the processing of the inner cavity, and the processing precision of the to-be-processed cabin body is further improved.

[0018] (3) The positioning unit is arranged, comprising a mother plate, a daughter plate, a positioning and fixing assembly and a cleaning assembly, the positioning and fixing assembly is arranged on the mother plate, and the positioning and fixing assembly is used for positioning the daughter plate when the daughter plate is installed on the mother plate; the positioning and fixing assembly comprises a first positioning end face and a second positioning end face, the second positioning end face is arranged opposite to the first positioning end face, and the second positioning end face can be in contact with the first positioning end face; the cleaning assembly is installed on the positioning and fixing assembly, is used for cleaning the first positioning end face and the second positioning end face, and the first positioning end face and the second positioning end face are kept clean, so that the precision deviation caused by the residual particles on the first positioning end face and the second positioning end face is prevented, the installation precision of the daughter plate and the mother plate is ensured, the positioning precision of the to-be-processed cabin body is improved, the cleaning efficiency of the positioning unit is improved, the safety hidden danger caused by the operation error of workers is avoided, and the workers are prevented from being injured.

[0019] (4) The cleaning assembly comprises a blowing cleaning mechanism, the blowing cleaning mechanism comprises a communication cavity, a first blowing hole, a second blowing hole and a third gas path, one end of the third gas path is in communication with an external gas path, and the other end is in communication with a third cavity; the communication cavity, the first blowing hole and the second blowing hole are arranged on the fastening column, the first blowing hole and the second blowing hole are in communication with the communication cavity, the first blowing hole is used for blowing and cleaning the first positioning end face, and the first positioning end face is kept clean; the second blowing hole is used for blowing and cleaning the second positioning end face, and the second positioning end face is kept clean; the first positioning end face and the second positioning end face are continuously blown and cleaned by the blowing cleaning mechanism, the first positioning end face and the second positioning end face are kept clean, so that the precision deviation caused by the residual particles on the first positioning end face and the second positioning end face is prevented, the installation precision of the daughter plate and the mother plate is ensured, the positioning precision of the to-be-processed cabin body is improved, the cleaning efficiency of the positioning unit is improved, the safety hidden danger caused by the operation error of workers is avoided, and the workers are prevented from being injured.

[0020] (5) the cleaning assembly is further provided with a wiping mechanism, the wiping mechanism comprises a rotating sleeve, a mounting frame, a first wiping device and a second wiping device, the first wiping device comprises a first wiping block, and the second wiping device comprises a second wiping block; the rotating sleeve is sleeved on the fixed seat and can rotate along the axis of the fixed seat and slide up and down; the mounting frame is mounted on the rotating sleeve and can rotate synchronously with the rotating sleeve; the first wiping device is mounted on the mounting frame and can slide up and down along the axis of the mounting frame and rotate with the mounting frame, the first wiping block is in contact with the first positioning end face and is used for wiping the first positioning end face; the second wiping device is mounted on the mounting frame and can rotate with the mounting frame, the second wiping block is in contact with the second positioning end face and is used for wiping the second positioning end face; the rotating sleeve is rotated to drive the mounting frame to rotate, so that the first wiping device and the second wiping device are driven to rotate, and then the first wiping block is controlled to wipe the first positioning end face and the second wiping block is controlled to wipe the second positioning end face, so that the cleanliness of the first positioning end face and the second positioning end face can be further improved, and then the positioning accuracy is further improved.

[0021] In the present application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent description, and some advantages will become apparent from the description, or will be understood by implementing the present application. The purposes and other advantages of the present application can be realized and obtained from the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0023] Figure 1 It is a structure schematic view of the clamping tool of the embodiment 1 of the present application;

[0024] Figure 2 It is a structure schematic view of the first supporting unit of the embodiment 1 of the present application;

[0025] Figure 3 It is a structure schematic view of the second supporting unit of the embodiment 1 of the present application;

[0026] Figure 4 It is a structure schematic view of the clamping tool of the embodiment 2 of the present application;

[0027] Figure 5 It is a structure schematic view of the fastening column of the embodiment 2 of the present application;

[0028] Figure 6 It is a sectional view of the positioning and fixing mechanism of the embodiment 2 of the present application;

[0029] Figure 7 The exploded view of the wiping mechanism of the embodiment 2 of the present application;

[0030] Figure 8 The structural schematic view of the mounting frame of the embodiment 2 of the present application;

[0031] Figure 9 The exploded view of the first wiping device of the embodiment 2 of the present application;

[0032] Figure 10 The exploded view of the second wiping device of the embodiment 2 of the present application;

[0033] Figure 11 The structural schematic view of the transmission rod of the embodiment 2 of the present application.

[0034] Reference signs:

[0035] 1, first clamping unit; 11, first flange; 12, first pull rod; 2, second clamping unit; 21, second flange; 22, second pull rod; 3, first support unit; 31, first support frame; 32, first support roller; 4, second support unit; 41, second support frame; 42, second support roller; 5, hollow rotary table unit; 51, shell; 52, rotary table body; 6, positioning unit; 61, mother plate; 62, daughter plate; 63, positioning and fixing assembly; 631, fastening column; 6311, fastening groove; 6312, communication cavity; 6313, first blowing hole; 6314, second blowing hole; 632, positioning and fixing mechanism; 6321, fixed seat; 6322, fastening wedge; 6323, positioning ball; 6324, first spring; 6325, control cavity; 64, cleaning assembly; 641, rotating sleeve; 6411, limiting groove; 6412, first protrusion; 642, mounting frame; 6421, limiting plate; 6422, second spring; 6423, ring seat limiting sliding groove; 643, first wiping device; 6431, first wiping block; 6432, first ring seat; 64321, first wiping block limiting sliding groove; 64322, rotation-stopping limiting sliding block; 64323, avoiding hole; 64324, second protrusion; 6433, first follower ring; 644, second wiping device; 6441, second wiping block; 6442, second ring seat; 64421, second wiping block limiting sliding groove; 6443, second follower ring; 645, transmission rod; 6451, driving tooth; 6452, second sliding groove; 646, third spring. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in detail below with reference to the drawings, wherein the drawings constitute a part of the present application and serve to explain the principles of the embodiments of the present application, but are not used to limit the scope of the present application.

[0037] Example 1

[0038] In one specific embodiment of the present invention, a clamping fixture for machining the internal cavity of a large-size cabin is disclosed, used to clamp the cabin to be machined; such as Figure 1 As shown, the clamping fixture includes a first clamping unit 1, a second clamping unit 2, and a hollow turntable unit 5. The hollow turntable unit 5 can be fitted onto the chamber to be processed. The first clamping unit 1 and the second clamping unit 2 are located on both sides of the hollow turntable unit 5 and connected to it. The first clamping unit 1 is used to install and fix one end of the chamber to be processed onto the hollow turntable unit 5, and the second clamping unit 2 is used to install and fix the other end of the chamber to be processed onto the hollow turntable unit 5. The hollow turntable unit 5 is used to drive the chamber to be processed to rotate. Compared with the prior art, by installing and fixing both ends of the chamber to be processed onto the hollow turntable unit 5 by the first clamping unit 1 and the second clamping unit 2 respectively, the first clamping unit 1, the second clamping unit 2, the hollow turntable unit 5, and the chamber to be processed form a rigid whole, thereby improving the clamping stability of the chamber to be processed, preventing vibration during the processing of the inner cavity of the chamber to be processed, and thus improving the processing accuracy.

[0039] Preferably, the hollow turntable unit 5 includes a housing 51, a turntable body 52, and a drive motor. The housing 51 is used to connect with the machine tool worktable. The turntable body 52 is mounted on the housing 51 and rotatably connected to the housing 51. The drive motor is mounted on the housing 51 and connected to the turntable body 52 to drive the turntable body 52 to rotate.

[0040] Preferably, the turntable body 52 has a hollow cavity through which the chamber to be processed can pass.

[0041] Preferably, the first clamping unit 1 includes a first flange 11 and a first tie rod 12. The first flange 11 is fixedly connected to one end of the chamber to be processed; one end of the first tie rod 12 is fixedly connected to the first flange 11, and the other end is fixedly connected to the turntable body 52. ​​The first tie rod 12 and the first flange 11 can fix one end of the chamber to be processed to the turntable body 52. ​​The first tie rod 12 can not only provide stable support for the chamber to be processed, but also make the chamber to be processed and the turntable body 52 form a rigid whole, realizing stable clamping and avoiding vibration during the processing of the inner cavity of the chamber to be processed, thereby improving the processing accuracy.

[0042] Preferably, the second clamping unit 2 comprises a second flange 21 and a second pull rod 22, the second flange 21 is fixedly connected with the other end of the cabin to be machined; one end of the second pull rod 22 is fixedly connected with the second flange 21, and the other end is fixedly connected with the turntable body 52; the first flange 11 and the second flange 21 and the first pull rod 12 and the second pull rod 22 can be used to fixedly connect one end of the cabin to be machined with the turntable body 52, the second pull rod 22 can be used to stably support the cabin to be machined, and the cabin to be machined and the turntable body 52 form a rigid whole, stable clamping is realized, vibration is avoided during machining of the inner cavity of the cabin to be machined, and machining precision is improved.

[0043] In use, the cabin to be machined passes through the hollow cavity of the turntable body 52, the first flange 11 is fixedly connected with one end of the cabin to be machined, one end of the first pull rod 12 is fixedly connected with the first flange 11, and the other end is fixedly connected with the turntable body 52; the second flange 21 is fixedly connected with the other end of the cabin to be machined, one end of the second pull rod 22 is fixedly connected with the second flange 21, and the other end is fixedly connected with the turntable body 52; the first flange 11 and the second flange 21 and the first pull rod 12 and the second pull rod 22 are used to fixedly connect the cabin to be machined with the turntable body 52, so that the cabin to be machined and the turntable body 52 form a rigid whole, stable clamping is realized, vibration is avoided during machining of the inner cavity of the cabin to be machined, and machining precision is improved.

[0044] Preferably, a plurality of first pull rods 12 are arranged, and the plurality of first pull rods 12 are uniformly arranged in a circle; a plurality of second pull rods 22 are arranged, and the plurality of second pull rods 22 are uniformly arranged in a circle; uniform arrangement of the plurality of first pull rods 12 and the plurality of second pull rods 22 can make the cabin to be machined bear force uniformly, can further improve the connection rigidity between the cabin to be machined and the turntable body 52, and further improve the stability of clamping of the cabin to be machined, prevent the cabin to be machined from vibrating and deforming during machining of the inner cavity, and thus improve the machining precision of the cabin to be machined.

[0045] Preferably, the clamping tool further comprises a first supporting unit 3 and a second supporting unit 4, the first supporting unit 3 is used for supporting the first flange 11, and the second supporting unit 4 is used for supporting the second flange 21, so as to support both ends of the cabin to be machined, further improve the stability of clamping of the cabin to be machined, further prevent the cabin to be machined from vibrating and deforming during machining of the inner cavity, and thus further improve the machining precision of the cabin to be machined.

[0046] Preferably, as Figure 2As shown, the first support unit 3 comprises a first support frame 31 and a first support roller 32, the first support frame 31 is used to be connected with the machine tool workbench, the first support roller 32 is installed on the first support frame 31, and the first support roller 32 is provided with two groups, which are used to support the first flange 11, thereby improving the stability of the support of the cabin to be machined.

[0047] Preferably, as Figure 3 As shown, the second support unit 4 comprises a second support frame 41 and a second support roller 42, the second support frame 41 is used to be connected with the machine tool workbench, the second support roller 42 is installed on the first support frame 31, and the second support roller 42 is provided with two groups, which are used to support the second flange 21, thereby improving the stability of the support of the cabin to be machined.

[0048] Embodiment 2

[0049] For further improvement on the basis of embodiment 1, as Figure 4 As shown, the clamping tool further comprises a positioning unit 6, which is used for rapid zero-point positioning of the cabin to be machined; the first clamping unit 1, the second clamping unit 2, the first support unit 3, the second support unit 4 and the hollow rotary table unit 5 are all installed on the positioning unit 6, and are installed on the machine tool workbench through the positioning unit 6, thereby rapidly positioning the zero-point of the cabin to be machined.

[0050] Preferably, the positioning unit 6 comprises a mother plate 61, a daughter plate 62, a positioning and fixing assembly 63 and a cleaning assembly 64, the mother plate 61 can be installed on the machine tool workbench, and the daughter plate 62 is used to install the first clamping unit 1, the second clamping unit 2, the first support unit 3, the second support unit 4 and the hollow rotary table unit 5; the positioning and fixing assembly 63 is arranged on the mother plate 61, which is used to quickly and accurately position the daughter plate 62 when the daughter plate 62 is installed on the mother plate 61, so as to maintain the positioning accuracy of the daughter plate 62, thereby positioning the zero-point of the cabin to be machined; the cleaning assembly 64 is installed on the positioning and fixing assembly 63, which is used to clean the positioning and fixing assembly 63, so as to ensure the installation accuracy of the daughter plate 62 and the mother plate 61.

[0051] Preferably, the mother plate 61 is provided with a first air path, and the first air path is connected with an external air path.

[0052] Preferably, the positioning and fixing assembly 63 comprises a first positioning end face, a second positioning end face, a fastening column 631 and a positioning and fixing mechanism 632, the first positioning end face is arranged on the positioning and fixing mechanism 632, and the positioning and fixing mechanism 632 is arranged on the mother plate 61; the second positioning end face and the fastening column 631 are both arranged on the daughter plate 62; the second positioning end face is arranged opposite to the first positioning end face, and the second positioning end face can be in contact with the first positioning end face, so that when the daughter plate 62 is clamped to the mother plate 61, the daughter plate 62 is positioned, and the upper mounting surface of the daughter plate 62 is kept parallel to the table surface of the machine tool table; the fastening column 631 is located on the second positioning end face and can be inserted into the positioning and fixing mechanism 632, the positioning and fixing mechanism 632 is used for positioning and locking the inserted fastening column 631, so as to realize quick positioning and fixing of the daughter plate 62, and then realize quick positioning of the workpiece to be processed mounted on the daughter plate 62, and positioning efficiency and positioning accuracy are improved.

[0053] Preferably, as shown in Figure 5 the fastening groove 6311 is arranged on the column surface of the fastening column 631.

[0054] Preferably, as shown in Figure 6 the positioning and fixing mechanism 632 comprises a fixed seat 6321, a fastening wedge block 6322, a positioning ball 6323, a first spring 6324 and a control cavity 6325, one end of the fixed seat 6321 is fixedly connected with the mother plate 61, and the other end is the first positioning end face; the fixed seat 6321 is provided with a first cavity, a second cavity, a third cavity and a second gas path, the third cavity is used for inserting the fastening column 631 and positioning the fastening column 631; the first cavity is in communication with the second cavity, the positioning ball 6323 is arranged in the first cavity and can protrude out of or retreat into the first cavity, and the positioning ball 6323 is used for locking the fastening column 631; the fastening wedge block 6322 is arranged in the second cavity and can slide in the second cavity, is used for controlling the positioning ball 6323 to protrude out of or retreat into the first cavity, realizes locking and unlocking of the fastening column 631; the first spring 6324 is arranged in the second cavity, one end of the first spring 6324 is connected with the second cavity, and the other end of the first spring 6324 is connected with the fastening wedge block 6322, and the first spring 6324 is used for always exerting an elastic pushing force on the fastening wedge block 6322; the control cavity 6325 is surrounded by the fastening wedge block 6322 and the second cavity, one end of the control cavity 6325 is in communication with the second gas path, and the other end of the second gas path is in communication with the first gas path;

[0055] In use, compressed gas is filled into the control cavity 6325 through the external gas path and the first and second gas paths, the control cavity 6325 expands, the fastening wedge 6322 is pushed to slide in the direction away from the first positioning end face, the force acting on the positioning ball 6323 is removed, the positioning ball 6323 retreats into the first cavity; the fastening column 631 is inserted into the third cavity, after the second positioning end face contacts the first positioning end face, the external gas path is disconnected, the fastening wedge 6322 is pushed to slide in the direction close to the first positioning end face under the elastic pushing force of the first spring 6324, the force acting on the positioning ball 6323 is applied, the positioning ball 6323 protrudes out of the first cavity and is inserted into the fastening groove 6311, the fastening column 631 is locked and fixed, the sub-plate 62 is quickly positioned and fixed, and the positioning efficiency and positioning accuracy of the sub-plate 62 clamped on the mother plate 61 are improved.

[0056] Preferably, the cleaning assembly 64 comprises a blowing cleaning mechanism, which is used to continuously clean the first and second positioning end faces when the sub-plate 62 is clamped on the mother plate 61, so that the first and second positioning end faces are kept clean, the precision deviation caused by the residual particles on the first and second positioning end faces is prevented, the positioning accuracy of the positioning unit 6 is improved, and the positioning accuracy of the to-be-processed cabin is improved.

[0057] Preferably, the blowing cleaning mechanism comprises a communication cavity 6312, a first blowing hole 6313, a second blowing hole 6314 and a third gas path, the third gas path is arranged on the fixed seat 6321, one end of the third gas path is in communication with the first gas path, and the other end is in communication with the third cavity; the communication cavity 6312, the first blowing hole 6313 and the second blowing hole 6314 are arranged on the fastening column 631, the first blowing hole 6313 and the second blowing hole 6314 are in communication with the communication cavity 6312, the first blowing hole 6313 is used to clean the first positioning end face, and the second blowing hole 6314 is used to clean the second positioning end face;

[0058] When the sub-plate 62 is assembled on the mother-plate 61, the fastening column 631 is inserted into the third cavity for positioning and locking, and at the same time, compressed gas is filled into the communication cavity 6312 through the first gas path and the third gas path by the external gas path, the first positioning end face is blown by the first blowhole 6313, and the second positioning end face is blown by the second blowhole 6314, so that when the sub-plate 62 is assembled on the mother-plate 61, the first positioning end face and the second positioning end face are continuously blown and cleaned at the same time, the first positioning end face and the second positioning end face are kept clean, thereby preventing the precision deviation caused by the residual particles on the first positioning end face and the second positioning end face, and improving the positioning accuracy of the positioning unit 6; and when the sub-plate 62 is assembled on the mother-plate 61, manual cleaning is not required, thereby improving the assembly efficiency and the safety of manual operation.

[0059] Preferably, the first blowhole 6313 is inclined to the direction close to the first positioning end face, that is, the first blowhole 6313 is inclined to the direction away from the second positioning end face, so that the gas blown by the first blowhole 6313 can be concentrated to the first positioning end face, thereby improving the cleaning effect of the first positioning end face; the second blowhole 6314 is inclined to the direction close to the second positioning end face, so that the gas blown by the second blowhole 6314 can be concentrated to the second positioning end face, thereby improving the cleaning effect of the second positioning end face and continuously blowing and cleaning the second positioning end face, so that the second positioning end face can be kept clean, thereby improving the positioning accuracy of the second positioning end face contacting the first positioning end face.

[0060] Preferably, the first blowhole 6313 is provided with a plurality of first blowholes 6313 circumferentially arranged, thereby increasing the blowing direction and increasing the blowing area of the first positioning end face, so as to realize the overall blowing of the first positioning end face and further improve the cleaning effect of the first positioning end face.

[0061] Preferably, the second blowhole 6314 is provided with a plurality of second blowholes 6314 circumferentially arranged, thereby increasing the blowing direction and increasing the blowing area of the second positioning end face, so as to realize the overall blowing of the second positioning end face and further improve the cleaning effect of the second positioning end face.

[0062] Preferably, the first blowhole 6313 is provided with a plurality of rows of first blowholes 6313, which can enable the fastening column 631 to be inserted into the third cavity and continuously blow and clean the first positioning end face before the second positioning end face contacts the first positioning end face, so that the first positioning end face can be kept clean.

[0063] Preferably, the cleaning component 64 further includes a wiping mechanism for wiping the first positioning end face and the second positioning end face to further improve the cleanliness of the first positioning end face and the second positioning end face, thereby further improving the positioning accuracy of the first positioning end face and the second positioning end face, and further improving the positioning accuracy of the positioning unit 6. By coordinating the air blowing cleaning mechanism and the wiping mechanism, the cleanliness of the first positioning end face and the second positioning end face can be further improved.

[0064] Preferably, such as Figure 7 As shown, the wiping mechanism includes a rotating sleeve 641, a mounting frame 642, a first wiping device 643, a second wiping device 644, and a transmission rod 645. The rotating sleeve 641 is provided with a limiting groove 6411. The first wiping device 643 includes a first wiping block 6431, and the second wiping device 644 includes a second wiping block 6441. The rotating sleeve 641 is sleeved on the fixed base 6321 and can rotate along the axis of the fixed base 6321 and slide up and down. The mounting frame 642 is installed in the limiting groove 6411, which restricts the relative rotation of the mounting frame 642 and the rotating sleeve 641, so that the mounting frame 642 can rotate synchronously with the rotating sleeve 641. The mounting frame 642 can also slide up and down within the limiting groove 6411. The first wiping device 643 is installed on the mounting frame 642 and can slide up and down along the axis of the mounting frame 642, and can also slide up and down with the rotating sleeve 641. The mounting bracket 642 rotates, and the first wiping block 6431 remains in contact with the first positioning end face to wipe the first positioning end face, thereby further improving the cleanliness of the first positioning end face; the second wiping device 644 is mounted on the mounting bracket 642 and can also rotate with the mounting bracket 642, and the second wiping block 6441 remains in contact with the second positioning end face to wipe the second positioning end face, thereby further improving the cleanliness of the second positioning end face; the transmission rod 645 is mounted between the first wiping device 643 and the second wiping device 644 and is connected to the first wiping device 643 and the second wiping device 644, and is used to control the first wiping block 6431 and the second wiping block 6441 to move synchronously along the radial direction of the mounting bracket 642, so that the first wiping block 6431 can exit the first positioning end face, and the second wiping block 6441 can exit the second positioning end face, so as to avoid interference between the contact between the second positioning end face and the first positioning end face;

[0065] In use, the sub-plate 62 is buckled on the wiping mechanism, the second positioning end surface is in contact with the second wiping block 6441, the first positioning end surface is in contact with the first wiping block 6431, and a downward pressure is applied to the sub-plate 62, the downward pressure applied to the sub-plate 62 is transmitted to the rotating sleeve 641 through the second wiping device 644 and the mounting frame 642, the rotating sleeve 641 rotates and slides downward along the axis of the fixed seat 6321 under the action of the downward pressure, the rotating sleeve 641 rotates, driving the mounting frame 642 to rotate, thereby driving the first wiping device 643 and the second wiping device 644 to rotate, and then realizing the control of the first wiping block 6431 wiping the first positioning end surface and the second wiping block 6441 wiping the second positioning end surface.

[0066] At the same time, since the first positioning end surface is in contact with the first wiping block 6431, the downward sliding of the first wiping device 643 is limited, so that the first wiping device 643 and the second wiping device 644 can move relatively in the vertical direction, and then the transmission rod 645 can be driven to rotate, and the first wiping block 6431 and the second wiping block 6441 are controlled to move synchronously along the radial direction of the rotating sleeve 641 by the rotation of the transmission rod 645, that is, before the first wiping device 643 and the second wiping device 644 contact, the first wiping block 6431 is controlled to exit the first positioning end surface, and the second wiping block 6441 is controlled to exit the second positioning end surface, so as to avoid interference with the contact between the second positioning end surface and the first positioning end surface.

[0067] When the first wiping device 643 and the second wiping device 644 contact, the fixed seat 6321, the rotating sleeve 641, the mounting frame 642, the first wiping device 643, the second wiping device 644 and the transmission rod 645 are in a locked state, forming a rigidly connected whole, in order to avoid the rigidly connected whole hindering the contact between the second positioning end surface and the first positioning end surface, at this time, under the continuous action of the downward pressure, the mounting frame 642 slides into the limiting groove 6411, realizing the yielding action, so that the second positioning end surface can contact the first positioning end surface, and precise positioning is realized.

[0068] Preferably, a first sliding groove is further arranged on the outer circumference of the fixed seat 6321, and the first sliding groove is spirally arranged.

[0069] Preferably, a first protrusion 6412 is further arranged on the rotating sleeve 641, the first protrusion 6412 is arranged on the inner wall of the rotating sleeve 641 and can be inserted into the first sliding groove and slide along the first sliding groove, so that the rotating sleeve 641 can rotate along the axis of the fixed seat 6321 and slide up and down when subjected to external force.

[0070] Preferably, as Figure 8As shown, the mounting frame 642 comprises a limiting plate 6421 installed in the limiting groove 6411 to limit the relative rotation of the mounting frame 642 and the rotating sleeve 641, so that the mounting frame 642 can rotate synchronously with the rotating sleeve 641; at the same time, the limiting plate 6421 can slide up and down in the limiting groove 6411, so that when the first wiping device 643 and the second wiping device 644 are in contact, the limiting plate 6421 slides into the limiting groove 6411 to realize the yielding action, and ensure that the second positioning end surface can be in contact with the first positioning end surface to realize accurate positioning.

[0071] Preferably, the mounting frame 642 further comprises a second spring 6422, one end of which is fixedly connected with the limiting plate 6421, and the other end is fixedly installed in the limiting groove 6411, and the second spring 6422 is used to apply an elastic pushing force to the limiting plate 6421, so that when the downward pressure applied to the mounting frame 642 is removed, the limiting plate 6421 can automatically return to the initial position, so that the first wiping block 6431 can be in contact with the first positioning end surface.

[0072] Preferably, the limiting plate 6421 is provided with a ring seat limiting sliding groove 6423 extending in the vertical direction.

[0073] Preferably, as shown, Figure 9 As shown, the first wiping device 643 further comprises a first ring seat 6432 and a first follower ring 6433, the first wiping block 6431 and the first follower ring 6433 are both installed on the first ring seat 6432, the first wiping block 6431 can slide in the radial direction of the first ring seat 6432, and the first follower ring 6433 can rotate circumferentially on the first ring seat 6432; the first follower ring 6433 is further connected with the first wiping block 6431, and rotating the first follower ring 6433 can control the first wiping block 6431 to slide in the radial direction of the first ring seat 6432; the first ring seat 6432 is sleeved on the limiting plate 6421, and the limiting plate 6421 can limit the rotation of the first ring seat 6432 relative to the mounting frame 642, so that the first ring seat 6432 can rotate synchronously with the mounting frame 642; the first ring seat 6432 can also slide up and down on the limiting plate 6421, so that the first wiping block 6431 can be kept in contact with the first positioning end surface, and then the first wiping block 6431 can rotate to wipe the first positioning end surface, and can also be controlled to move away from the axis of the first ring seat 6432 in the radial direction of the first ring seat 6432, until it exits the first positioning end surface, so that the second positioning end surface can be in contact with the first positioning end surface to realize accurate positioning.

[0074] Preferably, the first wiping block 6431 is provided with a first wiping end face and a first follow-up sliding groove, the first wiping end face is in contact with the first positioning end face for wiping the first positioning end face, and the first follow-up sliding groove is a vortex sliding groove.

[0075] Preferably, the first ring seat 6432 is provided with a first wiping block limiting sliding groove 64321 extending along the radial direction of the first ring seat 6432, and the first wiping block 6431 is installed in the first wiping block limiting sliding groove 64321 and can slide along the radial direction of the first ring seat 6432 in the first wiping block limiting sliding groove 64321.

[0076] Preferably, the first ring seat 6432 is further provided with a rotation-stopping limiting sliding block 64322 arranged in the ring seat limiting sliding groove 6423 and capable of sliding along the ring seat limiting sliding groove 6423, the ring seat limiting sliding groove 6423 can limit the relative rotation of the first ring seat 6432 relative to the mounting frame 642, so that the first ring seat 6432 can rotate synchronously with the mounting frame 642, thereby realizing the wiping of the first positioning end face by rotating the first wiping block 6431, further improving the cleanliness of the first positioning end face, and improving the positioning accuracy of the positioning unit 6.

[0077] Preferably, the first ring seat 6432 is further provided with a relief hole 64323 and a second protrusion 64324, and the second protrusion 64324 is located in the relief hole 64323.

[0078] Preferably, the first follow-up ring 6433 is provided with a first follow-up tooth and a first driving guide rail, the first follow-up tooth is arranged on the outer circumference of the first follow-up ring 6433, and the first driving guide rail is arranged on the side surface of the first follow-up ring 6433, the first driving guide rail is a vortex guide rail, and the first driving guide rail can slide in the first follow-up sliding groove, thereby driving the first wiping block 6431 to slide along the radial direction of the first ring seat 6432.

[0079] Preferably, as Figure 10As shown, the second wiping device 644 further comprises a second ring seat 6442 and a second follower ring 6443, the second wiping block 6441 and the second follower ring 6443 are both mounted on the second ring seat 6442, the second wiping block 6441 can slide along the radial direction of the second ring seat 6442, and the second follower ring 6443 can rotate on the second ring seat 6442; the second ring seat 6442 is further connected with the second wiping block 6441, and rotating the second ring seat 6442 can control the second wiping block 6441 to slide along the radial direction of the second ring seat 6442; the second ring seat 6442 is fixedly mounted on the limiting plate 6421, so that the second ring seat 6442 can rotate synchronously with the mounting frame 642, so as to realize the rotation wiping of the second wiping block 6441 on the second positioning end face, and can realize the synchronous control of the second wiping block 6441 moving along the radial direction of the second ring seat 6442 away from the axis of the second ring seat 6442 until exiting the second positioning end face, so as to ensure that the second positioning end face can be in contact with the first positioning end face, and precise positioning is realized.

[0080] Preferably, the second wiping block 6441 is provided with a second wiping end face and a second follower sliding groove, the second wiping end face is in contact with the second positioning end face, and is used for wiping the second positioning end face; and the second follower sliding groove is a spiral sliding groove.

[0081] Preferably, the second ring seat 6442 is provided with a second wiping block limiting sliding groove 64421, the second wiping block limiting sliding groove 64421 extends along the radial direction of the second ring seat 6442, the second wiping block 6441 is mounted in the second wiping block limiting sliding groove 64421 and can slide along the radial direction of the second ring seat 6442 in the second wiping block limiting sliding groove 64421.

[0082] Preferably, the second follower ring 6443 is provided with a second follower tooth and a second driving guide rail, the second follower tooth is arranged on the outer circumference of the second follower ring 6443; the second driving guide rail is arranged on the side surface of the second follower ring 6443, the second driving guide rail is a spiral driving sliding rail, and the second driving guide rail can slide in the second follower sliding groove, so as to drive the second wiping block 6441 to slide along the radial direction of the second ring seat 6442.

[0083] Preferably, one end of the transmission rod 645 is rotationally connected with the first ring seat 6432, and the other end is arranged in the avoiding hole 64323, so that the transmission rod 645 can move towards the first positioning end face along with the first ring seat 6432.

[0084] Preferably, as Figure 11As shown, the transmission rod 645 is provided with a driving tooth 6451 and a second sliding groove 6452, the first and second follower teeth are engaged with the driving tooth 6451, the second sliding groove 6452 is spirally arranged, the second protrusion 64324 is inserted into the second sliding groove 6452 and can slide along the second sliding groove 6452, so that the transmission rod 645 can rotate simultaneously when moving towards the first positioning end face along the first ring seat 6432, thereby driving the first and second follower rings 6433 and 6443 to rotate synchronously, and then realizing the control of the first wiping block 6431 moving along the radial direction of the first ring seat 6432 away from the axis of the first ring seat 6432 until exiting the first positioning end face, and synchronously controlling the movement along the radial direction of the second ring seat 6442 away from the axis of the second ring seat 6442 until exiting the second positioning end face, so as to ensure that the second positioning end face can contact the first positioning end face and realize precise positioning.

[0085] Preferably, the wiping mechanism further comprises a third spring 646, the third spring 646 is sleeved on the fixed seat 6321, one end of the third spring 646 is fixedly connected with the fixed seat 6321, the other end is rotatably connected with the rotating sleeve 641, and the third spring 646 is used for always applying an elastic pushing force to the rotating sleeve 641, when the downward pressure on the wiping mechanism is removed, the rotating sleeve 641 is pushed to rotate and slide upwards along the axis of the fixed seat 6321 under the action of the elastic pushing force of the third spring 646, so that the rotating sleeve 641 returns to the initial position, and the second wiping device 644 is also returned to the initial state.

[0086] Preferably, the wiping mechanism further comprises a fourth spring (not shown in the figure), the fourth spring is sleeved on the mounting frame 642, one end of the fourth spring is connected with the first ring seat 6432, and the other end is connected with the second ring seat 6442, and the fourth spring is used for always applying an elastic pushing force to the first ring seat 6432, when the downward pressure on the wiping mechanism is removed and the second wiping device 644 returns to the initial state, the first wiping device 643 is also pushed to return to the initial state by the elastic pushing force of the fourth spring.

[0087] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered within the protection scope of the present application.

Claims

1. A clamping tool for processing the inner cavity of a large-size cabin, characterized in that, The utility model provides a kind of cabin machining device, including first clamping unit (1), second clamping unit (2) and hollow rotary table unit (5), the hollow rotary table unit (5) can be set on the cabin to be processed;First clamping unit (1) and second clamping unit (2) are arranged in the two sides of hollow rotary table unit (5), and are connected with hollow rotary table unit (5), first clamping unit (1) is used to install and fix the one end of cabin to be processed on hollow rotary table unit (5), and second clamping unit (2) is used to install and fix the other end of cabin to be processed on hollow rotary table unit (5), and hollow rotary table unit (5) is used to drive cabin to be processed to rotate; The hollow rotary table unit (5) includes a housing (51), a rotary table body (52), and a drive motor. The rotary table body (52) is arranged on the housing (51) and is rotationally connected with the housing (51). The drive motor is connected with the rotary table body (52) and is used to drive the rotary table body (52) to rotate. The first clamping unit (1) includes a first flange (11) and a first pull rod (12). The first flange (11) is fixedly connected with one end of the cabin to be processed. One end of the first pull rod (12) is fixedly connected with the first flange (11), and the other end is fixedly connected with the rotary table body (52). The second clamping unit (2) includes a second flange (21) and a second pull rod (22). The second flange (21) is fixedly connected with the other end of the cabin to be processed. One end of the second pull rod (22) is fixedly connected with the second flange (21), and the other end is fixedly connected with the rotary table body (52). The utility model also includes a first support unit (3) and a second support unit (4). The first support unit (3) is used to support the first flange (11), and the second support unit (4) is used to support the second flange (21). The utility model also includes a positioning unit (6) which is used to position the cabin to be processed to zero. The positioning unit (6) includes a mother plate (61), a daughter plate (62), a positioning and fixing assembly (63), and a cleaning assembly (64). The mother plate (61) is provided with a first air path which is connected with an external air path. The positioning and fixing assembly (63) includes a first positioning end face, a second positioning end face, a fastening column (631), and a positioning and fixing mechanism (632). The second positioning end face and the fastening column (631) are both arranged on the daughter plate (62). The second positioning end face is arranged opposite to the first positioning end face and can be in contact with the first positioning end face. The fastening column (631) is located on the second positioning end face and can be inserted into the positioning and fixing mechanism (632). The positioning and fixing mechanism (632) is used to position and tightly fix the inserted fastening column (631). The positioning and fixing mechanism (632) includes a fixed seat (6321). One end of the fixed seat (6321) is fixedly connected with the mother plate (61), and the other end is the first positioning end face. The cleaning assembly (64) comprises a blowing cleaning mechanism, the blowing cleaning mechanism comprises a communication cavity (6312), a first blowing hole (6313), a second blowing hole (6314) and a third gas path, the third gas path is arranged on the fixed seat (6321); the communication cavity (6312), the first blowing hole (6313) and the second blowing hole (6314) are all arranged on the fastening column (631), and the outer gas path fills compressed gas into the communication cavity (6312) through the first gas path and the third gas path; the first blowing hole (6313) and the second blowing hole (6314) are all in communication with the communication cavity (6312), the first blowing hole (6313) is used for blowing and cleaning the first positioning end face, so that the first positioning end face remains clean, and the second blowing hole (6314) is used for blowing and cleaning the second positioning end face, so that the second positioning end face remains clean.

2. The clamping tool for machining the inner cavity of a large-size cabin body according to claim 1, characterized in that, The first support unit (3) comprises a first support frame (31) and a first support roller (32), the first support frame (31) is connected with the machine tool workbench, and the first support roller (32) is installed on the first support frame (31) and used for supporting the first flange (11).

3. The clamping tool for machining the inner cavity of a large-size cabin body according to claim 2, characterized in that, The second support unit (4) comprises a second support frame (41) and a second support roller (42), the second support frame (41) is connected with the machine tool workbench, and the second support roller (42) is installed on the first support frame (31) and used for supporting the second flange (21).

4. The clamping tool for machining the inner cavity of a large-size cabin body according to claim 3, characterized in that, The first pull rod (12) and the second pull rod (22) are both provided with a plurality of rods, and the first support roller (32) and the second support roller (42) are both provided with a plurality of groups.

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