Fixing device for machining of large barrel structural part

Abstract

The invention discloses a fixing device for machining of a large barrel structural member, and relates to the technical field of fixing devices for machining, the fixing device comprises a base, a workbench, a lifting module, a clamping unit, an inner supporting unit and a conveying module, the base serves as a mounting foundation, and when the large barrel structural member is fixed, the large barrel structural member is placed on the lifting module firstly, then the clamping unit is used for clamping the large barrel structural member, and the conveying module is used for conveying the large barrel structural member; the lifting module ascends, the large barrel structural part is lifted to the specific height, then the height of the clamping unit and the height of the inner supporting unit are adjusted, one end of the large barrel structural part is clamped by the clamping unit, the other end of the large barrel structural part is expanded and fixed from the interior by the inner supporting unit, and the clamping unit can drive the large barrel structural part to rotate. And the conveying module is fixedly connected with the inner supporting unit, so that the axial horizontal displacement of the large cylinder structural part can be provided for the inner supporting unit, the inner supporting unit can be conveniently inserted into and pulled out of the large cylinder structural part, and the overall mounting and dismounting are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of machining fixing devices, in particular to a machining fixing device for a large cylinder structural part. Background Art

[0002] During the machining process, large composite cylinder structural parts have extremely high requirements on the stability of the fixing device due to their large size and heavy weight. The fixing device needs to ensure that the composite cylinder structural parts will not shake or displace during the machining process to ensure machining accuracy and safety. With the continuous development of machining technology, automated fixing technology is gradually applied to the machining of large composite cylinder structural parts. Through automated components such as electric telescopic rods and extrusion devices, automatic fixation of composite cylinder structural parts is achieved, reducing the inconvenience and errors of manual hand-held fixation. However, when the current fixing device is fixing large composite cylinder structural parts, the clamping force may be too large, resulting in deformation of the composite cylinder structure, or the clamping force may be too small to be effectively fixed. Sometimes, the machining of composite cylinder structural parts also requires fixed rotation. For this reason, the fixing device also needs to have a rotation function and be able to keep the composite cylinder structural parts stably fixed during rotation. Summary of the invention

[0003] The purpose of the present invention is to provide a fixing device for processing large-scale cylindrical structural parts to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: The fixing device includes a base, a workbench, a lifting module, a clamping unit, an internal support unit and a conveying module. The workbench and the base are fixedly connected, the lifting module and the base are fixedly connected, the lifting module is located between the clamping unit and the internal support unit, the clamping unit and one end of the base are fixedly connected, one end of the conveying module is inserted into the base, part of the conveying module and the base are rotatably connected, part of the conveying module and the base are slidably connected, part of the conveying module and the workbench are slidably connected, and the internal support unit and the conveying module are fixedly connected.

[0005] The base serves as the installation foundation. When fixing the large-scale cylindrical structure, the large-scale cylindrical structure is first placed on the lifting module. The lifting module rises to raise the large-scale cylindrical structure to a specific height, and then the height of the clamping unit and the inner support unit are adjusted. One end of the large-scale cylindrical structure is clamped by the clamping unit, and the other end is supported and fixed from the inside by the inner support unit. The clamping unit can drive the large-scale cylindrical structure to rotate, providing a plurality of orientations for the processing of the large-scale cylindrical structure, and performing flexible processing. The conveying module and the inner support unit are fixedly connected, which can provide the inner support unit with axial horizontal displacement of the large-scale cylindrical structure, facilitate the insertion and extraction of the inner support unit into and out of the large-scale cylindrical structure, and facilitate the overall installation and disassembly.

[0006] Furthermore, one end of the base is hollow, the conveying module is inserted into the hollow section of the base, the conveying module and the inner end of the hollow section of the base are rotatably connected, the conveying module and the outer end of the hollow section of the base are rotatably connected, the upper end surface of the hollow section of the base is provided with a through groove, and part of the conveying module is slidably connected to the base through the through groove.

[0007] The base is used as an installation foundation, the hollow section on the base is used to install the conveying module, and the through groove on the base provides a path for the conveying module to drive the inner support unit.

[0008] Furthermore, a through slot is also provided on the workbench at a position corresponding to the through slot of the base.

[0009] The through groove on the workbench also provides a path for the conveying module to drive the inner support unit, making it convenient for the conveying module to provide the inner support unit with axial horizontal displacement of the large cylinder structure.

[0010] Furthermore, the lifting module includes a lifting cylinder and an auxiliary roller. The two lifting cylinders are fixedly connected to the base. The two lifting cylinders are located on both sides of the workbench. The push rod ends of the two lifting cylinders are respectively fixedly connected to the two ends of the auxiliary roller. The auxiliary roller is a circular arc segment, and the auxiliary roller rotates in the radial direction of the large cylinder structure.

[0011] The lifting cylinder allows the auxiliary roller to move up and down, raising or lowering the large cylinder structure. At the same time, the auxiliary roller can help the large cylinder structure to rotate and support the middle part to prevent the large cylinder structure from deformation during processing and improve processing accuracy.

[0012] Furthermore, the clamping unit includes a rotating motor, a clamping bracket, a clamping seat, a clamping bearing, a clamping cylinder and a three-jaw chuck, the clamping bracket being located at one end of the solid section of the base, the clamping bracket being fixedly connected to the base, a clamping cylinder being arranged in the clamping bracket, the clamping cylinder being fixedly connected to the clamping bracket, a push rod end of the clamping cylinder being fixedly connected to the bottom end of the clamping seat, both ends of the clamping seat being slidingly connected to the clamping bracket, a clamping bearing being arranged on the upper end surface of the clamping seat, the clamping seat being fixedly connected to the clamping bearing, the output shaft of the rotating motor passing through the clamping bearing, the output shaft of the rotating motor being fixedly connected to the three-jaw chuck, and the output shaft of the rotating motor being fixedly connected to the inner ring of the clamping bearing.

[0013] The rotating motor drives the three-jaw chuck to rotate, thereby driving the rotation of the large cylindrical structure. The push rod end of the clamping cylinder and the bottom end of the clamping seat are fixedly connected. The clamping cylinder can push up or pull down the clamping seat to adjust the position of the three-jaw chuck.

[0014] Furthermore, the three-jaw chuck includes a chuck body, a chuck magnet, a chuck spring and a chuck magnetic detection sensor. The chuck body is fixedly connected to the output shaft of the rotating motor, and the chuck spring and the chuck magnetic detection sensor are arranged in the claw slide groove of the chuck body. One end of the chuck spring is fixedly connected to the claw, and the other end of the chuck spring is fixedly connected to the chuck magnetic detection sensor. The chuck magnetic detection sensor is fixedly connected to an end face of the claw slide groove close to the center point of the chuck body, and the chuck magnet is arranged in the chuck spring, and the chuck magnet is fixedly connected to the claw.

[0015] When the three-jaw chuck is working, the claws on the chuck body retract inwards, compressing the chuck spring in the claw slide groove, and the chuck magnet on the claw gradually approaches the chuck magnetic detection sensor. The chuck magnetic detection sensor detects the change in the magnetic field and transmits information to the outside, and the three-jaw chuck stops working. At this time, the clamping force of the three-jaw chuck reaches the predetermined value, which effectively prevents the problem of excessive clamping force causing product deformation, or insufficient clamping force causing the product to be unable to be fixed. When the claws on the chuck body retract outwards, the chuck spring can help the claws reset.

[0016] Furthermore, the internal support unit includes an internal support bracket, an internal support bearing, an internal support seat, an internal support cylinder and an internal support module, the internal support bracket is fixedly connected to the conveying module, an internal support cylinder is arranged in the internal support bracket, the internal support cylinder and the internal support bracket are fixedly connected, the push rod end of the internal support cylinder and the bottom end of the internal support seat are fixedly connected, the two ends of the internal support seat and the internal support bracket are slidably connected, the upper end surface of the internal support seat is arranged with an internal support bearing, the internal support bearing and the internal support seat are fixedly connected, and the internal support module and the inner ring of the internal support bearing are fixedly connected.

[0017] The internal support module and the inner ring of the internal support bearing are fixedly connected, which ensures that when the large cylindrical structure is fixed, when the rotating motor rotates, it can drive the large cylindrical structure to rotate. The internal support cylinder adjusts the height of the internal support module by pushing and pulling the internal support seat, so that the central axis of the internal support module and the three-jaw chuck coincide, thereby improving the processing accuracy during processing and preventing safety accidents when the large cylindrical structure rotates.

[0018] Furthermore, the internal support module includes a pushing cylinder, a pressure block, an internal support spring, an internal support magnet, an internal support magnetic detection sensor, a slider, an internal support rod and an internal support column, one end of the internal support column is inserted into the internal support bearing, the internal support column and the inner ring of the internal support bearing are fixedly connected, the other end of the internal support column is slidably connected to multiple sliders, the sliding directions of the multiple sliders are all radial to the internal support column, one end of the internal support rod is hinged to the slider, the other end of the internal support rod is hinged to the pressure block, the centers of the circles formed at the hinges at both ends of the multiple internal support rods are all on the central axis of the internal support column, and the radius of the circle where the internal support rod and the slider are hinged is larger than the radius of the internal support rod. and the radius of the circle where the pressure block is hinged, the pushing cylinder and the inner support column are fixedly connected, the push rod end of the pushing cylinder and the pressure block are fixedly connected, the pressure block and the inner support column are slidably connected, the inner support magnet and the pressure block are fixedly connected, the inner support magnet is located on the surface of the pressure block facing the slider, the inner support spring is sleeved on the inner support column, one end of the inner support spring is fixedly connected to the pressure block, and the other end of the inner support spring is fixedly connected to the inner support column, the inner support magnetic detection sensor is located on the end surface of one end where the inner support column and one end of the inner support spring are fixedly connected, and the position of the inner support magnetic detection sensor corresponds to the position of the inner support magnet.

[0019] The pushing cylinder pushes the pressure block. Since the pressure block and the slider are hinged by the inner support rod, the slider and the inner support column are slidably connected, and the sliding direction of the slider is the radial direction of the inner support column. The centers of the circles formed at the hinges at both ends of the multiple inner support rods are all on the central axis of the inner support column. The radius of the circle where the inner support rod and the slider are hinged is larger than the radius of the circle where the inner support rod and the pressure block are hinged. When the pressure block slides to one end of the slider, the inner support rod pushes the slider outward synchronously, thereby achieving the purpose of internal support and fixing the large cylindrical structure. At the same time, the inner support spring is compressed, and the inner support magnet gradually approaches the inner support magnetic detection sensor. After the inner support magnetic detection sensor detects the change in the magnetic field, it transmits a signal to the outside, pushing the cylinder to stop pushing the pressure block to achieve the predetermined clamping force, effectively preventing the clamping force from being too large, causing the product to be deformed, or the clamping force from being insufficient, and the product cannot be fixed.

[0020] Furthermore, the conveying module includes a transmission shaft, a transmission seat and a handle, the transmission shaft is inserted into the hollow section of the base, the transmission shaft and the inner end of the hollow section of the base are rotatably connected, the transmission shaft and the outer end of the hollow section of the base are rotatably connected, the transmission seat is slidably connected to the base through a through groove, the transmission seat passes through the workbench, the transmission seat and the workbench are slidably connected, the transmission seat and the inner support bracket are fixedly connected, the transmission shaft passes through the transmission seat, the transmission shaft and the transmission seat are rotatably connected, the handle is fixedly connected to one end of the transmission shaft, and the handle is located outside the base.

[0021] The transmission shaft is rotated by turning the handle. The transmission shaft is provided with an external thread, and the transmission seat is provided with a corresponding internal thread. Since the transmission seat cannot rotate in the base, when the transmission shaft is rotated, the transmission seat will produce an axial displacement of the transmission shaft, thereby driving the movement of the inner support unit, which is convenient for the overall fixed installation and disassembly.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can rotate the large cylindrical structural member during processing through the clamping unit and the inner support unit to achieve multi-directional processing.

[0023] 2. The present invention improves the control of the clamping force when fixing large cylindrical structural parts by adding a chuck spring, a chuck magnet, a chuck magnetic detection sensor, an inner support spring, an inner support magnet and an inner support magnetic detection sensor, thereby preventing a series of problems caused by excessive clamping force or insufficient clamping force.

[0024] 3. The lifting module of the present invention can assist in clamping large cylindrical structural parts. At the same time, the auxiliary roller can help the large cylindrical structural parts to rotate and play a role in supporting the middle part to prevent the large cylindrical structural parts from being deformed during the processing.

[0025] 4. The inner support unit in the present invention can be disassembled according to the actual processing situation, and the large cylinder structure is fixed or rotated only by the clamping unit and the lifting module, which is convenient for all-round processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a fixing device for processing a large cylindrical structural member of the present invention; Figure 2 This is a schematic diagram of the internal structure of a fixture for processing a large cylindrical structural member according to the present invention; Figure 3 This is a front structural schematic diagram of a fixing device for processing a large cylindrical structural member of the present invention; Figure 4 A schematic diagram of a three-jaw chuck structure of a fixing device for machining a large cylindrical structural part according to the present invention; Figure 5 for Figure 4 A schematic diagram of a local A enlargement; Figure 6 The present invention is a schematic diagram of the structure of an inner support module of a fixing device for processing a large cylindrical structural member.

[0027] In the figure: 1. base; 2. workbench; 3. lifting module; 4. clamping unit; 5. internal support unit; 6. conveying module; 31. lifting cylinder; 32. auxiliary roller; 41. rotating motor; 42. clamping bracket; 43. clamping seat; 44. clamping bearing; 45. clamping cylinder; 46. three-jaw chuck; 51. internal support bracket; 52. internal support bearing; 53. internal support seat; 54. internal support cylinder; 55. internal support module; 61. transmission shaft; 62. transmission seat; 63. handle; 461. chuck body; 462. chuck magnet; 463. chuck spring; 464. chuck magnetic detection sensor; 551. pushing cylinder; 552. pressure block; 553. internal support spring; 554. internal support magnet; 555. internal support magnetic detection sensor; 556. slider; 557. internal support rod; 558. internal support column. DETAILED DESCRIPTION

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0029] Example: Figure 1-Figure 6 As shown, the present invention provides a technical solution for a fixing device for processing large cylindrical structural parts: like Figure 1 As shown, the fixing device includes a base 1, a workbench 2, a lifting module 3, a clamping unit 4, an internal support unit 5 and a conveying module 6, the workbench 2 and the base 1 are fixedly connected, the lifting module 3 and the base 1 are fixedly connected, the lifting module 3 is located between the clamping unit 4 and the internal support unit 5, the clamping unit 4 and one end of the base 1 are fixedly connected, one end of the conveying module 6 is inserted into the base 1, part of the conveying module 6 and the base 1 are rotatably connected, part of the conveying module 6 and the base 1 are slidably connected, part of the conveying module 6 and the workbench 2 are slidably connected, and the internal support unit 5 and the conveying module 6 are fixedly connected.

[0030] The base 1 serves as the installation foundation. When fixing the large cylindrical structure, the large cylindrical structure is first placed on the lifting module 3. The lifting module 3 rises to raise the large cylindrical structure to a specific height, and then the height of the clamping unit 4 and the inner support unit 5 are adjusted. One end of the large cylindrical structure is clamped by the clamping unit 4, and the other end is supported and fixed from the inside by the inner support unit 5. The clamping unit 4 can drive the large cylindrical structure to rotate, providing a plurality of orientations for the processing of the large cylindrical structure, and performing flexible processing. The conveying module 6 and the inner support unit 5 are fixedly connected, which can provide the inner support unit 5 with axial horizontal displacement of the large cylindrical structure, facilitate the insertion and extraction of the inner support unit 5 into the large cylindrical structure, and facilitate the overall installation and disassembly.

[0031] like Figure 2As shown, the interior of one end of the base 1 is hollow, the conveying module 6 is inserted into the hollow section of the base 1, the conveying module 6 is rotatably connected to the inner end of the hollow section of the base 1, the conveying module 6 is rotatably connected to the outer end of the hollow section of the base 1, and a through groove is provided on the upper end surface of the hollow section of the base 1, and part of the conveying module 6 is slidably connected to the base 1 through the through groove.

[0032] The base 1 serves as an installation foundation, and the hollow section on the base 1 is used to install the conveying module 6 . The through groove on the base 1 provides a path for the conveying module 6 to drive the inner support unit 5 .

[0033] A through slot is also provided on the workbench 2 at a position corresponding to the through slot of the base 1 .

[0034] The through groove on the workbench 2 also provides a path for the conveying module 6 to drive the inner support unit 5, so that the conveying module 6 can provide the inner support unit 5 with axial horizontal displacement of the large cylindrical structure.

[0035] like Figure 1 As shown, the lifting module 3 includes a lifting cylinder 31 and an auxiliary roller 32. The two lifting cylinders 31 are fixedly connected to the base 1. The two lifting cylinders 31 are located on both sides of the workbench 2. The push rod ends of the two lifting cylinders 31 are respectively fixedly connected to the two ends of the auxiliary roller 32. The auxiliary roller 32 is an arc segment, and the auxiliary roller 32 rotates in the radial direction of the large cylinder structure.

[0036] The lifting cylinder 31 allows the auxiliary roller 32 to move up and down to raise or lower the large cylindrical structure. At the same time, the auxiliary roller 32 can help the large cylindrical structure to rotate and play a role in supporting the middle to prevent the large cylindrical structure from deforming during processing and improve processing accuracy.

[0037] like Figure 1 and Figure 2 As shown, the clamping unit 4 includes a rotating motor 41, a clamping bracket 42, a clamping seat 43, a clamping bearing 44, a clamping cylinder 45 and a three-jaw chuck 46, the clamping bracket 42 is located at one end of the solid section of the base 1, the clamping bracket 42 is fixedly connected to the base 1, a clamping cylinder 45 is arranged in the clamping bracket 42, the clamping cylinder 45 is fixedly connected to the clamping bracket 42, the push rod end of the clamping cylinder 45 is fixedly connected to the bottom end of the clamping seat 43, the two ends of the clamping seat 43 are slidably connected to the clamping bracket 42, a clamping bearing 44 is arranged on the upper end surface of the clamping seat 43, the clamping seat 43 is fixedly connected to the clamping bearing 44, the output shaft of the rotating motor 41 passes through the clamping bearing 44, the output shaft of the rotating motor 41 is fixedly connected to the three-jaw chuck 46, and the output shaft of the rotating motor 41 is fixedly connected to the inner ring of the clamping bearing 44.

[0038] The rotating motor 41 drives the three-jaw chuck 46 to rotate, thereby driving the rotation of the large cylindrical structure. The push rod end of the clamping cylinder 45 and the bottom end of the clamping seat 43 are fixedly connected. The clamping cylinder 45 can push up or pull down the clamping seat 43 to adjust the position of the three-jaw chuck 46.

[0039] like Figure 1 , Figure 4 and Figure 5 As shown, the three-jaw chuck 46 includes a chuck body 461, a chuck magnet 462, a chuck spring 463 and a chuck magnetic detection sensor 464, the chuck body 461 is fixedly connected to the output shaft of the rotating motor 41, the chuck spring 463 and the chuck magnetic detection sensor 464 are arranged in the claw slide groove of the chuck body 461, one end of the chuck spring 463 is fixedly connected to the claw, the other end of the chuck spring 463 is fixedly connected to the chuck magnetic detection sensor 464, the chuck magnetic detection sensor 464 is fixedly connected to an end face of the claw slide groove close to the center point of the chuck body 461, the chuck magnet 462 is arranged in the chuck spring 463, and the chuck magnet 462 is fixedly connected to the claw.

[0040] When the three-jaw chuck 46 is working, the claws on the chuck body 461 retract inward, compressing the chuck spring 463 in the claw slide groove, and the chuck magnet 462 on the claw gradually approaches the chuck magnetic detection sensor 464. The chuck magnetic detection sensor 464 detects the change in the magnetic field and transmits information to the outside, and the three-jaw chuck 46 stops working. At this time, the clamping force of the three-jaw chuck 46 reaches a predetermined value, which effectively prevents the problem of excessive clamping force causing product deformation, or insufficient clamping force and inability to fix the product. When the claws on the chuck body 461 retract outward, the chuck spring 463 can help the claws reset.

[0041] like Figure 1 and Figure 2 As shown, the internal support unit 5 includes an internal support bracket 51, an internal support bearing 52, an internal support seat 53, an internal support cylinder 54 and an internal support module 55. The internal support bracket 51 is fixedly connected to the conveying module 6. The internal support cylinder 54 is arranged in the internal support bracket 51. The internal support cylinder 54 and the internal support bracket 51 are fixedly connected. The push rod end of the internal support cylinder 54 and the bottom end of the internal support seat 53 are fixedly connected. The two ends of the internal support seat 53 are slidably connected to the internal support bracket 51. The upper end surface of the internal support seat 53 is arranged with an internal support bearing 52. The internal support bearing 52 and the internal support seat 53 are fixedly connected. The internal support module 55 and the inner ring of the internal support bearing 52 are fixedly connected.

[0042] The inner support module 55 and the inner ring of the inner support bearing 52 are fixedly connected, ensuring that when the large cylindrical structure is fixed, when the rotating motor 41 rotates, it can drive the large cylindrical structure to rotate. The inner support cylinder 54 adjusts the height of the inner support module 55 by pushing and pulling the inner support seat 53, so that the central axis of the inner support module 55 and the three-jaw chuck 46 coincide with each other, thereby improving the processing accuracy during processing and preventing safety accidents from occurring when the large cylindrical structure rotates.

[0043] like Figure 6 As shown, the inner support module 55 includes a pushing cylinder 551, a pressure block 552, an inner support spring 553, an inner support magnet 554, an inner support magnetic detection sensor 555, a slider 556, an inner support rod 557 and an inner support column 558, one end of the inner support column 558 is inserted into the inner support bearing 52, the inner support column 558 is fixedly connected to the inner ring of the inner support bearing 52, the other end of the inner support column 558 is slidably connected to multiple sliders 556, the sliding directions of the multiple sliders 556 are all radial to the inner support column 558, one end of the inner support rod 557 is hinged to the slider 556, the other end of the inner support rod 557 is hinged to the pressure block 552, the centers of the circles formed at the hinges at both ends of the multiple inner support rods 557 are all on the central axis of the inner support column 558, and the radius of the circle where the inner support rod 557 and the slider 556 are hinged is larger than the radius of the inner support rod 5 57 and the radius of the circle where the pressure block 552 is hinged, the pushing cylinder 551 and the inner support column 558 are fixedly connected, the push rod end of the pushing cylinder 551 and the pressure block 552 are fixedly connected, the pressure block 552 and the inner support column 558 are slidably connected, the inner support magnet 554 and the pressure block 552 are fixedly connected, the inner support magnet 554 is located on the surface of the pressure block 552 facing the slider 556, the inner support spring 553 is sleeved on the inner support column 558, one end of the inner support spring 553 is fixedly connected to the pressure block 552, and the other end of the inner support spring 553 is fixedly connected to the inner support column 558, the inner support magnetic detection sensor 555 is located on the end surface of one end where the inner support column 558 and one end of the inner support spring 553 are fixedly connected, and the position of the inner support magnetic detection sensor 555 corresponds to the position of the inner support magnet 554.

[0044] The push cylinder 551 pushes the pressing block 552. Since the pressing block 552 and the slider 556 are hinged by the inner support rod 557, the slider 556 and the inner support column 558 are slidably connected, and the sliding direction of the slider 556 is the radial direction of the inner support column 558. The centers of the circles formed by the hinges at both ends of the multiple inner support rods 557 are all on the central axis of the inner support column 558. The radius of the circle where the inner support rod 557 and the slider 556 are hinged is greater than the radius of the circle where the inner support rod 557 and the pressing block 552 are hinged, so that when the pressing block 552 slides toward the slider When one end of 556 is reached, the inner support rod 557 pushes the slider 556 outward synchronously, thereby achieving the purpose of internally supporting and fixing the large cylindrical structure. At the same time, the inner support spring 553 is compressed, and the inner support magnet 554 gradually approaches the inner support magnetic detection sensor 555. After the inner support magnetic detection sensor 555 detects the change in the magnetic field, it transmits a signal to the outside to push the cylinder 551 to stop pushing the pressure block 552, thereby achieving a predetermined clamping force, effectively preventing the clamping force from being too large, causing the product to be deformed, or the clamping force from being insufficient, causing the product to be unable to be fixed.

[0045] like Figure 2 As shown, the conveying module 6 includes a transmission shaft 61, a transmission seat 62 and a handle 63, the transmission shaft 61 is inserted into the hollow section of the base 1, the transmission shaft 61 and the inner end of the hollow section of the base 1 are rotatably connected, the transmission shaft 61 and the outer end of the hollow section of the base 1 are rotatably connected, the transmission seat 62 is slidably connected to the base 1 through a through groove, the transmission seat 62 passes through the workbench 2, the transmission seat 62 and the workbench 2 are slidably connected, the transmission seat 62 and the inner support bracket 51 are fixedly connected, the transmission shaft 61 passes through the transmission seat 62, the transmission shaft 61 and the transmission seat 62 are rotatably connected, the handle 63 is fixedly connected to one end of the transmission shaft 61, and the handle 63 is located outside the base 1.

[0046] The transmission shaft 61 is rotated by turning the handle 63. The transmission shaft 61 is provided with an external thread, and the transmission seat 62 is provided with a corresponding internal thread. Since the transmission seat 62 cannot rotate in the base 1, when the transmission shaft 61 is rotated, the transmission seat 62 will cause the transmission shaft 61 to be displaced in the axial direction, thereby driving the movement of the inner support unit 5, which is convenient for the overall fixed installation and disassembly.

[0047] Working principle of the present invention: When the present invention is working, firstly, the three-jaw chuck 46 and the inner support module 55 are adjusted to a specific height, while keeping the central axes of the three-jaw chuck 46 and the inner support module 55 coincident, the large cylindrical structure is placed on the auxiliary roller 32, the lifting cylinder 31 is started, and the large cylindrical structure is lifted up until the central axes of the large cylindrical structure, the three-jaw chuck 46 and the inner support module 55 coincide, then the three-jaw chuck 46 works, the claws on the chuck body 461 are retracted inwardly, the chuck spring 463 in the claw slide groove is compressed, and the chuck magnet 462 on the claw gradually approaches the chuck magnetic detection sensor 464, the chuck magnetic detection sensor 464 detects the change in the magnetic field, transmits information to the outside, the three-jaw chuck 46 stops working, one end of the large cylindrical structure is fixed, the handle 63 is turned, the inner support module 55 is moved, inserted into the large cylindrical structure, and the cylinder 551 is pushed Push the pressure block 552. When the pressure block 552 slides to one end of the slider 556, the inner support rod 557 pushes the slider 556 outward synchronously, thereby achieving the purpose of internally supporting and fixing the large cylindrical structure. At the same time, the inner support spring 553 is compressed, and the inner support magnet 554 gradually approaches the inner support magnetic detection sensor 555. After the inner support magnetic detection sensor 555 detects the change in the magnetic field, it transmits a signal to the outside to push the cylinder 551 to stop pushing the pressure block 552 and fix one end of the large cylindrical structure. When it is necessary to process the inside of the large cylindrical structure, the inner support unit 5 is pulled out from the inside of the large cylindrical structure by turning the handle 63, and then the inner support unit 5 is removed. When the processing requires rotating the large cylindrical structure, start the rotating motor 41 to drive the rotation of the large cylindrical structure. At the same time, the auxiliary roller plays a role of auxiliary rotation and support to prevent the large cylindrical structure from deformation and improve the processing accuracy.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixing device for processing large cylindrical structural parts, characterized in that: The fixing device comprises a base (1), a workbench (2), a lifting module (3), a clamping unit (4), an internal support unit (5) and a conveying module (6); the workbench (2) and the base (1) are fixedly connected; the lifting module (3) and the base (1) are fixedly connected; the lifting module (3) is located between the clamping unit (4) and the internal support unit (5); the clamping unit (4) and one end of the base (1) are fixedly connected; one end of the conveying module (6) is inserted into the base (1); part of the conveying module (6) and the base (1) are rotatably connected; part of the conveying module (6) and the base (1) are slidably connected; part of the conveying module (6) and the workbench (2) are slidably connected; and the internal support unit (5) and the conveying module (6) are fixedly connected.

2. A fixing device for processing large cylindrical structural parts according to claim 1, characterized in that: The interior of one end of the base (1) is hollow, the conveying module (6) is inserted into the interior of the hollow section of the base (1), the conveying module (6) and the inner end of the hollow section of the base (1) are rotatably connected, the conveying module (6) and the outer end of the hollow section of the base (1) are rotatably connected, the upper end surface of the hollow section of the base (1) is provided with a through groove, and part of the conveying module (6) is slidably connected to the base (1) through the through groove.

3. A fixing device for processing a large cylindrical structural member according to claim 2, characterized in that: A through slot is also provided on the workbench (2) at a position corresponding to the through slot of the base (1).

4. A fixing device for processing a large cylindrical structural member according to claim 3, characterized in that: The lifting module (3) comprises a lifting cylinder (31) and an auxiliary roller (32); the two lifting cylinders (31) are fixedly connected to the base (1); the two lifting cylinders (31) are located on both sides of the workbench (2); the push rod ends of the two lifting cylinders (31) are respectively fixedly connected to the two ends of the auxiliary roller (32); the auxiliary roller (32) is in the form of an arc segment; and the auxiliary roller (32) rotates in the radial direction of the large cylinder structure.

5. A fixing device for machining large cylindrical structural parts according to claim 4, characterized in that: The clamping unit (4) comprises a rotating motor (41), a clamping bracket (42), a clamping seat (43), a clamping bearing (44), a clamping cylinder (45) and a three-jaw chuck (46); the clamping bracket (42) is located at one end of the solid section of the base (1); the clamping bracket (42) and the base (1) are fixedly connected; a clamping cylinder (45) is arranged in the clamping bracket (42); the clamping cylinder (45) and the clamping bracket (42) are fixedly connected; a push rod end of the clamping cylinder (45) and The bottom end of the clamping seat (43) is fixedly connected, the two ends of the clamping seat (43) are slidably connected to the clamping bracket (42), the upper end surface of the clamping seat (43) is provided with a clamping bearing (44), the clamping seat (43) and the clamping bearing (44) are fixedly connected, the output shaft of the rotating motor (41) passes through the clamping bearing (44), the output shaft of the rotating motor (41) is fixedly connected to the three-jaw chuck (46), and the output shaft of the rotating motor (41) is fixedly connected to the inner ring of the clamping bearing (44).

6. A fixing device for processing a large cylindrical structural member according to claim 5, characterized in that: The three-jaw chuck (46) comprises a chuck body (461), a chuck magnet (462), a chuck spring (463) and a chuck magnetic detection sensor (464); the chuck body (461) is fixedly connected to the output shaft of the rotating motor (41); the chuck spring (463) and the chuck magnetic detection sensor (464) are arranged in the claw slide groove of the chuck body (461); one end of the chuck spring (463) is fixedly connected to the claw; the other end of the chuck spring (463) is fixedly connected to the chuck magnetic detection sensor (464); the chuck magnetic detection sensor (464) is fixedly connected to an end face of the claw slide groove close to the center point of the chuck body (461); the chuck magnet (462) is arranged in the chuck spring (463); and the chuck magnet (462) is fixedly connected to the claw.

7. A fixing device for processing a large cylindrical structural member according to claim 1, characterized in that: The inner support unit (5) comprises an inner support bracket (51), an inner support bearing (52), an inner support seat (53), an inner support cylinder (54) and an inner support module (55); the inner support bracket (51) and the conveying module (6) are fixedly connected; an inner support cylinder (54) is arranged inside the inner support bracket (51); the inner support cylinder (54) and the inner support bracket (51) are fixedly connected; a push rod end of the inner support cylinder (54) and a bottom end of the inner support seat (53) are fixedly connected; two ends of the inner support seat (53) and the inner support bracket (51) are slidably connected; an inner support bearing (52) is arranged on the upper end surface of the inner support seat (53); the inner support bearing (52) and the inner support seat (53) are fixedly connected; and the inner support module (55) and the inner ring of the inner support bearing (52) are fixedly connected.

8. A fixing device for machining large cylindrical structural parts according to claim 7, characterized in that: The inner support module (55) comprises a pushing cylinder (551), a pressure block (552), an inner support spring (553), an inner support magnet (554), an inner support magnetic detection sensor (555), a slider (556), an inner support rod (557) and an inner support column (558), one end of the inner support column (558) is inserted into the inner support bearing (52), the inner support column (558) and the inner ring of the inner support bearing (52) are fixedly connected, and the other end of the inner support column (558) and a plurality of sliders ( 556) sliding connection, the sliding directions of the multiple sliders (556) are all radial directions of the inner support column (558), one end of the inner support rod (557) is hinged to the slider (556), and the other end of the inner support rod (557) is hinged to the pressure block (552), the centers of the circles where the two ends of the multiple inner support rods (557) are hinged are all on the central axis of the inner support column (558), and the radius of the circle where the inner support rod (557) and the slider (556) are hinged is greater than the radius of the inner support rod (557) and the radius of the circle where the hinge of the pressure block (552) is located, the pushing cylinder (551) and the inner support column (558) are fixedly connected, the push rod end of the pushing cylinder (551) and the pressure block (552) are fixedly connected, the pressure block (552) and the inner support column (558) are slidably connected, the inner support magnet (554) and the pressure block (552) are fixedly connected, the inner support magnet (554) is located on the surface of the pressure block (552) facing the slider (556), and the inner The support spring (553) is sleeved on the inner support column (558), one end of the inner support spring (553) is fixedly connected to the pressure block (552), and the other end of the inner support spring (553) is fixedly connected to the inner support column (558). The inner support magnetic detection sensor (555) is located on an end surface of an end where the inner support column (558) and one end of the inner support spring (553) are fixedly connected, and the position of the inner support magnetic detection sensor (555) corresponds to the position of the inner support magnet (554).

9. A fixing device for machining large cylindrical structural parts according to claim 8, characterized in that: The conveying module (6) comprises a transmission shaft (61), a transmission seat (62) and a handle (63); the transmission shaft (61) is inserted into the hollow section of the base (1); the transmission shaft (61) and the inner end of the hollow section of the base (1) are rotatably connected; the transmission shaft (61) and the outer end of the hollow section of the base (1) are rotatably connected; the transmission seat (62) is slidably connected to the base (1) via a through groove; the transmission seat (62) passes through the workbench (2); the transmission seat (62) and the workbench (2) are slidably connected; the transmission seat (62) and the inner support bracket (51) are fixedly connected; the transmission shaft (61) passes through the transmission seat (62); the transmission shaft (61) and the transmission seat (62) are rotatably connected; the handle (63) and one end of the transmission shaft (61) are fixedly connected; and the handle (63) is located outside the base (1).

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