Large workpiece outer surface machining device

Abstract

The invention relates to the technical field of ships, in particular to a large workpiece outer surface machining device. The device comprises a fixed rack, a rotating frame, a rotating driving mechanism and a cutting mechanism, wherein the fixed rack is used for fixedly sleeving a workpiece to be machined; the rotating frame is rotationally mounted on the inner side of the fixed rack; the rotary driving mechanism is mounted on the fixed rack, is in transmission connection with the rotary frame and is configured to drive the rotary frame to do circular motion around the workpiece; the cutting mechanism is installed on the rotating frame and used for cutting the outer surface of the workpiece. The device can replace manual work to machine the large workpiece, the outer surface of the large workpiece can be machined under the condition that the workpiece is not moved, and the machining efficiency and the machining precision are improved. In addition, the device can be longitudinally adapted to the workpiece, and the relative position of the device and the machining area of the workpiece is ensured to be unchanged, so that the situation that the machining precision of the workpiece is influenced by the conditions of foot warping, deformation, displacement and the like of the workpiece is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a device for processing the outer surface of a large workpiece. Background Art

[0002] Ship structure, also known as "hull structure", refers to the general term for hull structures composed of plates and frames, mainly including bottom structure, side structure, deck structure, bulkhead structure, bow and stern structure and superstructure. When the hull structure is built, the entire ship structure is divided into multiple components along the length of the hull, including the bow, stern and the mid-body part between the bow and stern. When processing the stern, it is usually necessary to process the outer surface of the stern.

[0003] Since the stern is too large to be rotated, conventional machining equipment usually cuts the workpiece by rotating the workpiece while the tool is stationary. Therefore, conventional machining equipment is not suitable for machining the stern. Currently, the outer surface of the stern is usually machined by manual grinding, which has the disadvantages of high labor intensity, low machining efficiency, and low machining accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a large workpiece outer surface processing device to solve the technical problems of high labor intensity, low processing efficiency and low processing accuracy in processing the outer surface of large workpieces by manual grinding.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A large workpiece outer surface processing device comprises a fixed frame, a rotating frame, a rotating drive mechanism and a cutting mechanism, wherein: The fixed frame is used to be fixedly mounted on the workpiece to be processed; The rotating frame is rotatably mounted on the inner side of the fixed frame; The rotary drive mechanism is mounted on the fixed frame and is in transmission connection with the rotary frame, and is configured to drive the rotary frame to perform circular motion around the workpiece; The cutting mechanism is installed on the rotating frame and is used for cutting the outer surface of the workpiece.

[0006] Further, the rotary drive mechanism comprises a rotary drive source, a driving gear and a driven gear ring, wherein the body of the rotary drive source is fixedly mounted on the fixed frame, the power output end of the rotary drive source is transmission-connected with the driving gear, the driving gear is meshed with the driven gear ring, and the driven gear ring is fixedly mounted on the rotating frame; And / or, the rotary drive mechanism comprises a bearing connected between the fixed frame and the rotating frame; And / or, the rotating frame is a hollow cone-column structure, and the rotating frame can be coaxially mounted on the workpiece.

[0007] Furthermore, the cutting mechanism includes a conical cutting assembly, which includes a first axial drive source, a first radial drive source and a conical cutting tool. The first axial drive source and the first radial drive source are configured to cooperate to drive the conical cutting tool to move so as to cut the outer conical surface of the workpiece.

[0008] Furthermore, the conical surface cutting assembly further comprises a first axial slide, a first slide seat and a first tool holder; the first axial slide is fixedly mounted on the rotating frame; the first slide seat is transmission-connected to the power output end of the first axial driving source, and the first slide seat is slidably mounted on the first axial slide seat along a first direction; the first tool holder is transmission-connected to the power output end of the second radial driving source, and the first tool holder is slidably mounted on the first slide seat along a second direction, and the conical surface cutting tool is arranged at the end of the first tool holder along the second direction and close to the workpiece; wherein the first direction is parallel to the inclination direction of the outer conical surface, and the second direction is perpendicular to the first direction; And / or, the conical cutting assembly further includes a first measuring probe connected to the conical cutting tool.

[0009] Furthermore, the cutting mechanism also includes a cylindrical cutting assembly, which includes a second axial drive source, a second radial drive source and a cylindrical cutting tool. The second axial drive source and the second radial drive source are configured to cooperate to drive the cylindrical cutting tool to move so as to cut the outer cylindrical surface of the workpiece.

[0010] Furthermore, the cylindrical surface cutting assembly further comprises a second axial slide, a second slide seat and a second tool holder; the second axial slide seat is fixedly mounted on the rotating frame; the second slide seat is transmission-connected to the power output end of the second axial driving source, and the second slide seat is slidably mounted on the second axial slide seat along a fourth direction; the second tool holder is transmission-connected to the power output end of the second radial driving source, and the second tool holder is slidably mounted on the second slide seat along a fourth direction, and the second tool holder is provided with the outer cylindrical surface cutting tool along the fourth direction and close to the end of the workpiece; wherein the third direction is parallel to the axis of the cylindrical surface, and the fourth direction is perpendicular to the third direction; And / or, the cylindrical surface cutting assembly further includes a second measuring probe connected to the cylindrical surface cutting tool.

[0011] Furthermore, the cutting mechanism further includes an end face cutting assembly. The end face cutting tool includes a third radial driving source and an end face cutting tool. The third radial driving source is configured to drive the end face cutting tool to move so as to perform cutting on the outer end face of the workpiece.

[0012] Furthermore, it further includes a clamping mechanism installed on the fixed frame. The clamping mechanism includes a plurality of radially positioning structures arranged in a circumferential manner and / or multiple groups of radially telescopic assemblies arranged in a circumferential manner. Among them, the plurality of radially positioning structures are configured to be able to cooperate together to align and position the workpiece, and the multiple groups of radially telescopic assemblies are configured to be able to cooperate together to radially clamp or release the workpiece.

[0013] Furthermore, a support inclined surface is provided on the inner side of each of the radially positioning structures. The support inclined surfaces on the plurality of radially positioning structures enclose a conical positioning ring adapted to the shape of the outer conical surface of the workpiece. And / or, each group of the radially telescopic assemblies includes a mounting shell, an adjustment screw, and a clamping block. Among them, the mounting shell is fixedly installed on the fixed frame, the adjustment screw is rotatably installed on the mounting shell around its own axis, and the clamping block is slidably installed on the mounting shell along the axis direction of the adjustment screw and is screwed to the adjustment screw. And / or, the number of the clamping mechanisms is two and they are respectively installed at both ends of the fixed frame.

[0014] Furthermore, a positioning ball head for cooperating and connecting with a moving device is provided at the bottom of the fixed frame. And / or, a lifting hole is provided on the fixed frame.

[0015] Advantages of the present invention: The large workpiece outer surface processing device provided by the present invention includes a fixed frame, a rotating frame, a rotating driving mechanism, and a cutting mechanism, wherein: the fixed frame is used for fixedly sleeving on the workpiece to be processed; the rotating frame is rotatably installed inside the fixed frame; the rotating driving mechanism is installed on the fixed frame and is in transmission connection with the rotating frame, and is configured to drive the rotating frame to perform a circular motion around the workpiece; the cutting mechanism is installed on the rotating frame and is used for performing cutting on the outer surface of the workpiece.

[0016] The processing device provided by the present application can replace manual labor for machining large workpieces, and can complete the machining of the outer surface of large workpieces without moving the workpieces, improving the machining efficiency and machining accuracy. In addition, during the machining process of large workpieces, situations such as warping of the workpieces may occur due to temperature changes. However, the processing device provided by the present application is bound to the machining area of the workpiece during the machining process. Therefore, the whole device can be adaptively adjusted according to the changes in the position and size of the workpiece, enabling the device to longitudinally adapt to the workpiece and ensuring that the relative position between the device and the machining area of the workpiece remains unchanged, thereby avoiding situations such as warping, deformation, and displacement of the workpiece that may affect the machining accuracy of the workpiece. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 3D structure diagram of the outer surface machining device for large workpieces provided by an embodiment of the present invention; Figure 2 Assembly structure diagram of the outer surface machining device for large workpieces, the workpiece to be machined, and the moving device provided by an embodiment of the present invention; Figure 3 Assembly structure diagram of the rotating frame, driven gear ring, bearing, and cutting mechanism provided by an embodiment of the present invention; Figure 4 Assembly structure diagram of the rotary drive source and drive gear provided by an embodiment of the present invention; Figure 5 For Figure 1 Enlarged view of part A in Figure 6 Frontal structure diagram of the conical surface cutting assembly provided by an embodiment of the present invention; Figure 7 3D structure diagram of the cylindrical surface cutting assembly and the end face cutting assembly provided by an embodiment of the present invention; Figure 8 Machining position diagram of each tool in the outer surface machining device for large workpieces provided by an embodiment of the present invention; Figure 9 Assembly structure diagram of the clamping mechanism and part of the fixed frame provided by an embodiment of the present invention; Figure 10 For Figure 9 Enlarged view of part D in Figure 11 3D structural schematic diagram of the radial telescopic assembly provided by an embodiment of the present invention; Figure 12 is Figure 1 an enlarged view of position B in Figure 13 is Figure 1 an enlarged view of position C in

[0019] Icon: 1 - Fixed frame; 11 - Positioning ball head; 12 - Lifting hole; 2 - Rotating frame; 3 - Rotating drive mechanism; 31 - Rotating drive source; 32 - Driving gear; 33 - Driven gear ring; 34 - Bearing; 4 - Cutting mechanism; 41 - Taper surface cutting assembly; 411 - First axial drive source; 412 - First radial drive source; 413 - Taper surface cutting tool; 414 - First axial slide; 415 - First slide seat; 416 - First measurement probe; 42 - Cylindrical surface cutting assembly; 421 - Second axial drive source; 422 - Second radial drive source; 423 - Cylindrical surface cutting tool; 424 - Second axial slide; 425 - Second slide seat; 426 - Second measurement probe; 43 - End face cutting assembly; 431 - Third radial drive source; 432 - End face cutting tool; 5 - Clamping mechanism; 51 - Radial positioning structure; 511 - Support inclined surface; 52 - Radial telescopic assembly; 521 - Installation shell; 522 - Adjusting screw; 523 - Clamping block; 100 - Workpiece; 110 - Outer taper surface; 120 - Outer cylindrical surface; 130 - Outer end face; 200 - Moving device. Detailed implementation manners

[0020] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] It should be noted that in the description of the present invention, the terms "connection" and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or connected through an intermediate medium; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Aiming at the technical problems such as high labor intensity, low processing efficiency, and low processing accuracy existing in the processing of the outer surface of large workpieces by manual grinding, the present invention provides a device for processing the outer surface of large workpieces. Referring to Figure 1 and Figure 2 , the device includes a fixed frame 1, a rotating frame 2, a rotation driving mechanism 3, and a cutting mechanism 4, wherein: The fixed frame 1 is used for fixedly sleeving on the workpiece 100 to be processed; The rotating frame 2 is rotatably installed inside the fixed frame 1; The rotation driving mechanism 3 is installed on the fixed frame 1 and is in transmission connection with the rotating frame 2, and is configured to drive the rotating frame 2 to perform a circular motion around the workpiece 100; The cutting mechanism 4 is installed on the rotating frame 2 and is used for cutting and processing the outer surface of the workpiece 100.

[0024] Taking the workpiece 100 to be processed as the stern of a ship as an example, as shown in Figure 2 , when processing the stern of a ship, first sleeved the fixed frame 1 on the stern of the ship and fix the two. At this time, the rotating frame 2 and the cutting mechanism 4 on the rotating frame 2 are located between the fixed frame 1 and the stern of the ship; then, start the rotation driving mechanism 3 and the cutting mechanism 4, the rotation driving mechanism 3 drives the rotating frame 2 and the cutting mechanism 4 on the rotating frame 2 to perform a circular motion around the workpiece 100. At the same time, the cutting mechanism 4 cuts and processes the outer surface of the workpiece 100. Through the above process, the automatic processing of the outer surface of large workpieces taking the stern of a ship as an example is realized.

[0025] As described above, the processing device provided by the present application can replace manual labor to machine large workpieces 100, and can complete the processing of the outer surface of the large workpiece 100 without moving the workpiece 100, improving the processing efficiency and processing accuracy. In addition, during the processing of the large workpiece 100, the workpiece 100 may be warped due to temperature changes. However, the processing device provided by the present application is bound to the processing area of the workpiece 100 during the processing process. Therefore, the whole device can be adaptively adjusted according to the changes in the position and size of the workpiece 100, so that the device can longitudinally adapt to the workpiece 100, ensuring that the relative position between the device and the processing area of the workpiece 100 remains unchanged, thereby avoiding situations such as warping, deformation, and displacement of the workpiece 100 that affect the processing accuracy of the workpiece 100.

[0026] Continue to refer to Figure 1 and Figure 2 , a positioning ball head 11 for cooperating and connecting with the moving device 200 is provided at the bottom of the fixed frame 1; and / or, a lifting hole 12 is provided on the fixed frame 1.

[0027] In the above setting, the moving device 200 can be a hydraulic truck, and a positioning structure for cooperating with the positioning ball head 11 at the bottom of the fixed frame 1 is provided on its upper surface. When it is necessary to move the fixed frame 1, the fixed frame 1 can be hoisted onto the moving device 200, and the moving device 200 drives the fixed frame 1 and the rotating frame 2, the rotation driving mechanism 3, and the cutting mechanism 4 on the fixed frame 1 to move together, thus facilitating the installation and disassembly of the fixed frame 1 and the workpiece 100.

[0028] Refer to Figures 3 to 5 , in some embodiments, the rotation driving mechanism 3 includes a rotation driving source 31, a driving gear 32, and a driven gear ring 33. Among them, the body of the rotation driving source 31 is fixedly installed on the fixed frame 1, the power output end of the rotation driving source 31 is in transmission connection with the driving gear 32, the driving gear 32 meshes with the driven gear ring 33, and the driven gear ring 33 is fixedly installed on the rotating frame 2.

[0029] In this embodiment, the rotation driving source 31 is specifically a motor, and the output shaft of the rotation driving source 31 is in transmission connection with the driving gear 32 through a speed reducer; the rotating frame 2 has a hollow conical column structure, and the driven gear ring 33 is coaxially fixed at the end of the rotating frame 2. When processing the workpiece 100, the driven gear ring 33 and the rotating frame 2 are coaxially sleeved on the workpiece 100, the rotation driving source 31 is started and drives the driving gear 32 to rotate, and the driving gear 32 drives the driven gear ring 33 and the rotating frame 2 to rotate synchronously, so that the rotating frame 2 and the cutting mechanism 4 on the rotating frame 2 make a circular motion around the workpiece 100.

[0030] In some embodiments, the rotary drive mechanism 3 includes a bearing 34 connected between the fixed frame 1 and the rotating frame 2. In this embodiment, the bearing 34 is specifically a cross roller bearing, the outer ring of the bearing 34 is fixedly mounted on the fixed frame 1, and the inner ring of the bearing 34 is fixedly mounted on the rotating frame 2 and fixed to the driven ring gear 33. When processing the workpiece 100, the rotary drive source 31 drives the driven ring gear 33 to rotate through the driving gear 32, and the driven ring gear 33 is fixedly connected to the inner ring of the bearing 34, thereby driving the rotating frame 2 to rotate.

[0031] In some embodiments, the number of the rotation drive mechanism 3 can be two, and the two rotation drive mechanisms 3 are respectively arranged at the two ends of the fixed frame 1. Figure 3 As shown, a driven gear ring 33 and a bearing 34 are respectively mounted on the two axial ends of the rotating frame 2, so that the two ends of the rotating frame 2 are subjected to force, thereby improving the stability of the rotating frame 2 during the rotation process.

[0032] Optionally, each rotary drive mechanism 3 includes one or more rotary drive sources 31, and a drive gear 32 is connected to the power output end of each rotary drive source 31. The number of rotary drive sources 31 in each rotary drive mechanism 3 can be adjusted according to the overall weight of the rotary frame 2 and the cutting mechanism 4, and is not limited here.

[0033] Reference Figure 6 In some embodiments, the workpiece 100 has an outer conical surface 110 that needs to be processed. Accordingly, the cutting mechanism 4 includes a conical surface cutting assembly 41, and the conical surface cutting assembly 41 includes a first axial driving source 411, a first radial driving source 412, and a conical surface cutting tool 413. The first axial driving source 411 and the first radial driving source 412 are configured to cooperate with each other to drive the conical surface cutting tool 413 to move, so as to perform cutting processing on the outer conical surface 110 of the workpiece 100.

[0034] In a specific embodiment, the conical cutting assembly 41 also includes a first axial slide 414, a first slide 415 and a first tool holder; the first axial slide 414 is fixedly mounted on the rotating frame 2, and the first axial drive source 411 is fixedly mounted on the first axial slide 414 (or the rotating frame 2); the first slide 415 is transmission-connected to the power output end of the first axial drive source 411, and the first slide 415 is slidingly mounted on the first axial slide 414 along a first direction, and the first radial drive source 412 is fixedly mounted on the first slide 415; the first tool holder is transmission-connected to the power output end of the first radial drive source 412, and the first tool holder is slidingly mounted on the first slide 415 along a second direction, and a conical cutting tool 413 is provided at the end of the first tool holder along the second direction and close to the workpiece 100; wherein the first direction is parallel to the inclination direction of the outer cone 110, and the second direction is perpendicular to the first direction.

[0035] Optionally, both the first axial drive source 411 and the first radial drive source 412 are motors. The first axial drive source 411 is drivingly connected to the first slide 415 through a lead screw-nut structure, and the first radial drive source 412 is drivingly connected to the first tool holder through a lead screw-nut structure. In order to improve the smoothness of the tool during movement, a guide rail-slider structure is provided between the first axial slide 414 and the first slide 415 and between the first slide 415 and the first tool holder.

[0036] In some embodiments, the conical surface cutting assembly 41 further includes a first measurement probe 416 connected to the conical surface cutting tool 413. The first measurement probe 416 can move synchronously with the conical surface cutting tool 413 and is used to on-line measure the size of the outer conical surface 110 to ensure the machining accuracy of the workpiece 100.

[0037] Referring to Figure 7 and Figure 8 , in some embodiments, the workpiece 100 has an outer cylindrical surface 120 to be machined. Correspondingly, the cutting mechanism 4 further includes a cylindrical surface cutting assembly 42. The cylindrical surface cutting assembly 42 includes a second axial drive source 421, a second radial drive source 422, and a cylindrical surface cutting tool 423. The second axial drive source 421 and the second radial drive source 422 are configured to cooperate to drive the cylindrical surface cutting tool 423 to move so as to machine the outer cylindrical surface 120 of the workpiece 100.

[0038] In a specific embodiment, the cylindrical surface cutting assembly 42 further includes a second axial slide 424, a second slide 425, and a second tool holder; the second axial slide 424 is fixedly installed on the rotating frame 2, and the second axial drive source 421 is fixedly installed on the second axial slide 424 (or the rotating frame 2); the second slide 425 is drivingly connected to the power output end of the second axial drive source 421, and the second slide 425 is slidably installed on the second axial slide 424 along a third direction. The second radial drive source 422 is fixedly installed on the second slide 425; the second tool holder is drivingly connected to the power output end of the second radial drive source 422, and the second tool holder is slidably installed on the second slide 425 along a fourth direction. The outer cylindrical surface cutting tool 423 is provided at the end of the second tool holder along the fourth direction and close to the workpiece 100; wherein, the third direction is parallel to the axis of the outer cylindrical surface 120, and the fourth direction is perpendicular to the third direction.

[0039] Optionally, both the second axial drive source 421 and the second radial drive source 422 are motors. The second axial drive source 421 is drivingly connected to the second slide 425 through a lead screw-nut structure, and the second radial drive source 422 is drivingly connected to the second tool holder through a lead screw-nut structure. To improve the smoothness of the tool during movement, a guide rail-slider structure is provided between the second axial slide 424 and the second slide 425 and between the second slide 425 and the second tool holder.

[0040] In some embodiments, the cylindrical surface cutting assembly 42 further includes a second measuring probe 426 connected to the cylindrical surface cutting tool 423. The second measuring probe 426 can move synchronously with the cylindrical surface cutting tool 423 for on-line measurement of the outer cylindrical surface 120 dimensions to ensure the machining accuracy of the workpiece 100.

[0041] Continue to refer to Figure 7 and Figure 8 , in some embodiments, the workpiece 100 has an outer end face 130 to be machined. Correspondingly, the cutting mechanism 4 further includes an end face cutting assembly 43. The end face cutting assembly 43 includes a third radial drive source 431 and an end face cutting tool 432. The third radial drive source 431 is configured to drive the end face cutting tool 432 to move to machine the outer end face 130 of the workpiece 100.

[0042] Further, to enable the end face cutting tool 432 to have a multi-directional feed amount, the third radial drive source 431 is mounted on the second slide 425. In the above arrangement, the end face cutting tool 432 can be driven by the second axial drive source 421 to move along the axis of the outer cylindrical surface 120, and the end face cutting tool 432 can be driven by the third radial drive source 431 to move along the radial direction of the outer cylindrical surface 120. The above arrangement not only enables the end face cutting tool 432 to have a multi-directional feed amount, but also saves an axial drive source, thereby reducing the manufacturing cost of the device and making the overall structure of the cutting mechanism 4 more compact.

[0043] Further, to avoid interference between the tools, the conical surface cutting assembly 41 and the cylindrical surface cutting assembly 42 are axially offset along the rotating frame 2. As Figure 3 shown, the conical surface cutting assembly 41 and the cylindrical surface cutting assembly 42 are respectively mounted on opposite sides in the radial direction of the rotating frame 2, and the cylindrical surface cutting assembly 42 and the end face cutting tool 432 are assembled into one body.

[0044] Refer to Figure 8, the working principle of the processing device provided by this application is as follows: The fixed frame 1 is fixedly sleeved on the workpiece 100, and the fixed frame 1 and the workpiece 100 are fixed and immovable. The rotary drive mechanism 3 drives the rotary frame 2 and the cutting mechanism 4 on the rotary frame 2 to make a circular motion around the workpiece 100. At this time, the conical cutting tool 413, the cylindrical cutting tool 423, and the end face cutting tool 432 all make a circular motion around the workpiece 100; during the rotation of the tool, the conical cutting tool 413 and the cylindrical cutting tool 423 can work simultaneously. Among them, the conical cutting tool 413 performs cutting processing on the outer conical surface 110 under the combined drive of the first axial drive source 411 and the first radial drive source 412, and the cylindrical cutting tool 423 performs cutting processing on the outer cylindrical surface 120 under the combined drive of the second axial drive source 421 and the second radial drive source 422; when the outer conical surface 110 and the outer cylindrical surface 120 are processed, the conical cutting tool 413 and the cylindrical cutting tool 423 move radially and leave the surface of the workpiece 100, and the end face cutting tool 432 performs cutting processing on the outer end face 130 under the combined drive of the second axial drive source 421 and the third radial drive source 431. During the processing, the first measurement probe 416 and the second measurement probe 426 detect the size of the outer surface of the workpiece 100 in real time to ensure that the processing accuracy of the workpiece 100 meets the processing requirements.

[0045] Referring to Figure 9 , the processing device provided by this application further includes a clamping mechanism 5 installed on the fixed frame 1. The clamping mechanism 5 includes a plurality of radially positioning structures 51 arranged in a circle and / or multiple groups of radially telescopic components 52 arranged in a circle. Among them, the plurality of radially positioning structures 51 are configured to be able to cooperate together to align and position the workpiece 100, and the multiple groups of radially telescopic components 52 are configured to be able to cooperate together to radially clamp or release the workpiece 100.

[0046] Optionally, the radially positioning structures 51 and the radially telescopic components 52 can be arranged alternately in the circumferential direction, or two or more groups of radially telescopic components 52 can be arranged between every two adjacent radially positioning structures 51. The specific arrangement method can be adjusted according to the actual positioning requirements.

[0047] Continuing to refer to Figure 9 , a support inclined surface 511 is provided inside each radially positioning structure 51. The support inclined surfaces 511 on the plurality of radially positioning structures 51 enclose a conical positioning ring adapted to the shape of the outer conical surface 110 of the workpiece 100. During the process of sleeving the fixed frame 1 on the workpiece 100 and advancing along the axial direction of the workpiece 100, when the outer surface of the workpiece 100 is in contact with each support inclined surface 511, it means that the fixed frame 1 has advanced in place. Then, the multiple groups of radially telescopic components 52 cooperate together to clamp the workpiece 100, so that the fixed frame 1 and the workpiece 100 are fixedly connected.

[0048] Reference Figure 10 and Figure 11 Each set of radial telescopic components 52 includes a mounting shell 521, a positioning screw 522 and a clamping block 523, wherein the mounting shell 521 is fixedly mounted on the fixed frame 1, the positioning screw 522 is rotatably mounted on the mounting shell 521 around its own axis, and the clamping block 523 is slidably mounted on the mounting shell 521 along the axis direction of the positioning screw 522 and is screwed to the positioning screw 522. After the fixed frame 1 is pushed into place, the rotating positioning screw 522 drives the clamping block 523 to move, and the multiple clamping blocks 523 cooperate to clamp the workpiece 100.

[0049] Optionally, the adjusting screw rod 522 can be driven automatically or manually.

[0050] In the embodiment where the positioning screw 522 is automatically driven, each set of radial telescopic components 52 further includes a clamping drive source, the body of which is fixed to the mounting shell 521 and the power output end of which is in transmission connection with the positioning screw 522, thereby controlling the rotation of the positioning screw 522. Each set of radial telescopic components 52 further includes a proximity switch disposed on the clamping block 523, through which it is possible to detect whether each clamping block 523 is clamped in place.

[0051] Reference Figure 1 , Figure 12 as well as Figure 13 There are two clamping mechanisms 5, which are respectively installed at the two ends of the fixed frame 1. The two clamping mechanisms 5 can clamp and fix the two ends of the fixed frame 1 and the workpiece 100, making the connection between the two more reliable.

[0052] It should be noted that the two clamping mechanisms 5 may not be completely the same. Figure 12 and Figure 13 As shown, the shapes of the corresponding parts in the two clamping mechanisms 5 are different, but the working principles of the corresponding parts are the same (ie, substantially the same).

[0053] In summary, during the working process of the large workpiece outer surface processing device provided by the present application, the whole device is bound to the processing area of the workpiece 100 through the clamping mechanism 5. Subsequently, the fixed frame 1 and the workpiece 100 are kept fixed, and the rotating frame 2 and the cutting mechanism 4 on the rotating frame 2 make a circular motion around the processing area of the workpiece 100. While making a circular motion, each tool in the cutting mechanism 4 can perform axial and radial feeding along the corresponding processing surface, so as to complete the cutting processing of the outer conical surface 110, the outer cylindrical surface 120 and the outer end surface 130 of the workpiece 100. This device replaces manual processing and can complete the processing of the outer surface of the workpiece 100 without moving the workpiece 100, improving the processing efficiency and accuracy. Moreover, this device can longitudinally adapt to the workpiece 100, avoiding situations such as the workpiece 100 having warping feet, deformation, displacement, etc., which affect the processing accuracy.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large workpiece outer surface processing device, characterized in that: It comprises a fixed frame (1), a rotating frame (2), a rotating drive mechanism (3) and a cutting mechanism (4), wherein: The fixed frame (1) is used to be fixedly mounted on a workpiece (100) to be processed; The rotating frame (2) is rotatably mounted on the inner side of the fixed frame (1); The rotary drive mechanism (3) is mounted on the fixed frame (1) and is transmission-connected to the rotary frame (2), and is configured to drive the rotary frame (2) to perform circular motion around the workpiece (100); The cutting mechanism (4) is mounted on the rotating frame (2) and is used to perform cutting processing on the outer surface of the workpiece (100).

2. The large workpiece outer surface processing device according to claim 1, characterized in that: The rotary drive mechanism (3) comprises a rotary drive source (31), a driving gear (32) and a driven ring gear (33), wherein the body of the rotary drive source (31) is fixedly mounted on the fixed frame (1), the power output end of the rotary drive source (31) is transmission-connected to the driving gear (32), the driving gear (32) is meshed with the driven ring gear (33), and the driven ring gear (33) is fixedly mounted on the rotary frame (2); And / or, the rotary drive mechanism (3) comprises a bearing (34) connected between the fixed frame (1) and the rotating frame (2); And / or, the rotating frame (2) is in the form of a hollow conical column structure, and the rotating frame (2) can be coaxially mounted with the workpiece (100).

3. The large workpiece outer surface processing device according to claim 1, characterized in that: The cutting mechanism (4) comprises a conical surface cutting assembly (41), wherein the conical surface cutting assembly (41) comprises a first axial driving source (411), a first radial driving source (412), and a conical surface cutting tool (413), wherein the first axial driving source (411) and the first radial driving source (412) are configured to cooperate with each other to drive the conical surface cutting tool (413) to move, so as to perform cutting processing on the outer conical surface (110) of the workpiece (100).

4. The large workpiece outer surface processing device according to claim 3, characterized in that: The conical surface cutting assembly (41) further comprises a first axial slide (414), a first slide seat (415) and a first tool holder; the first axial slide (414) is fixedly mounted on the rotating frame (2), and the first axial driving source (411) is fixedly mounted on the first axial slide (414) or the rotating frame (2); the first slide seat (415) is transmission-connected to a power output end of the first axial driving source (411), and the first slide seat (415) is slidably mounted on the first axial slide (414) along a first direction, and the first radial driving source (412) is fixedly mounted on the first slide seat (415); the first tool holder is transmission-connected to a power output end of the first radial driving source (412), and the first tool holder is slidably mounted on the first slide seat (415) along a second direction, and the conical surface cutting tool (413) is provided at an end of the first tool holder along the second direction and close to the workpiece (100); wherein the first direction is parallel to an inclination direction of the outer conical surface (110), and the second direction is perpendicular to the first direction; And / or, the conical surface cutting assembly (41) further comprises a first measuring probe (416) connected to the conical surface cutting tool (413).

5. The large workpiece outer surface processing device according to claim 1, characterized in that: The cutting mechanism (4) further comprises a cylindrical surface cutting assembly (42), wherein the cylindrical surface cutting assembly (42) comprises a second axial driving source (421), a second radial driving source (422) and a cylindrical surface cutting tool (423), wherein the second axial driving source (421) and the second radial driving source (422) are configured to cooperate with each other to drive the cylindrical surface cutting tool (423) to move, so as to perform cutting processing on the outer cylindrical surface (120) of the workpiece (100).

6. The large workpiece outer surface processing device according to claim 5, characterized in that: The cylindrical surface cutting assembly (42) further comprises a second axial slide (424), a second slide seat (425) and a second tool holder; the second axial slide (424) is fixedly mounted on the rotating frame (2), and the second axial drive source (421) is fixedly mounted on the second axial slide (424) or the rotating frame (2); the second slide seat (425) is transmission-connected to a power output end of the second axial drive source (421), and the second slide seat (425) is slidably mounted on the second axial slide seat (424) along a third direction. ), the second radial drive source (422) is fixedly mounted on the second slide seat (425); the second tool holder is transmission-connected to the power output end of the second radial drive source (422), and the second tool holder is slidably mounted on the second slide seat (425) along a fourth direction, and the second tool holder is provided with the outer cylindrical surface cutting tool (423) at an end thereof along the fourth direction and close to the workpiece (100); wherein the third direction is parallel to the axis of the outer cylindrical surface (120), and the fourth direction is perpendicular to the third direction; And / or, the cylindrical surface cutting assembly (42) further comprises a second measuring probe (426) connected to the cylindrical surface cutting tool (423).

7. The large workpiece outer surface processing device according to claim 1, characterized in that: The cutting mechanism (4) further comprises an end face cutting assembly (43), wherein the end face cutting assembly (43) comprises a third radial driving source (431) and an end face cutting tool (432), wherein the third radial driving source (431) is configured to drive the end face cutting tool (432) to move so as to perform cutting processing on the outer end face (130) of the workpiece (100).

8. The large workpiece outer surface processing device according to claim 1, characterized in that: It also includes a clamping mechanism (5) mounted on the fixed frame (1), the clamping mechanism (5) including a plurality of circumferentially arranged radial positioning structures (51) and / or a plurality of circumferentially arranged radial telescopic components (52), wherein the plurality of radial positioning structures (51) are configured to cooperate together to align and position the workpiece (100), and the plurality of radial telescopic components (52) are configured to cooperate together to radially clamp or release the workpiece (100).

9. The large workpiece outer surface processing device according to claim 8, characterized in that: A supporting inclined surface (511) is provided on the inner side of each radial positioning structure (51), and the supporting inclined surfaces (511) on a plurality of radial positioning structures (51) form a conical positioning ring that matches the shape of the outer conical surface (110) of the workpiece (100); And / or, each group of the radial telescopic components (52) comprises a mounting shell (521), a positioning screw (522) and a clamping block (523), wherein the mounting shell (521) is fixedly mounted on the fixed frame (1), the positioning screw (522) is rotatably mounted on the mounting shell (521) around its own axis, and the clamping block (523) is slidably mounted on the mounting shell (521) along the axial direction of the positioning screw (522) and is screwed to the positioning screw (522); And / or, the number of the clamping mechanisms (5) is two and they are respectively mounted at two ends of the fixed frame (1).

10. The large workpiece outer surface processing device according to claim 1, characterized in that: The bottom of the fixed frame (1) is provided with a positioning ball head (11) for cooperating with and connecting to the moving device (200); And / or, a lifting hole (12) is provided on the fixed frame (1).

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