CN113182568B - A special milling machine and processing method for tower crane rotary welding post-machining - Google Patents
A special milling machine and processing method for tower crane rotary welding post-machining Download PDFInfo
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- CN113182568B CN113182568B CN202110424037.7A CN202110424037A CN113182568B CN 113182568 B CN113182568 B CN 113182568B CN 202110424037 A CN202110424037 A CN 202110424037A CN 113182568 B CN113182568 B CN 113182568B
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- 238000003801 milling Methods 0.000 title claims abstract description 80
- 238000003754 machining Methods 0.000 title claims abstract description 32
- 238000003466 welding Methods 0.000 title claims abstract description 17
- 238000003672 processing method Methods 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 27
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000033001 locomotion Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/14—Control or regulation of the orientation of the tool with respect to the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
本发明公开了一种用于塔机回转焊后机加工的专用铣床及加工方法，包括支撑底座、滑轨、动力头和回转固定装置，在滑轨上设置有滑台，回转固定装置的下端通过滑台设置在滑轨上，滑轨上端旋接回转固定装置，支撑底座上侧位于回转固定装置上端焊接固定有动力头，动力头下端旋接设置有铣刀盘。本发明通过回转支承转动并带动工件回转过程中，使用铣刀盘对工件的加工面进行铣削，实现进给路径为圆形，能够和工件的加工面相吻合，使工件能够实现快速、高效的加工，生产效率高，针对性较强。解决了现有的铣床对塔机回转焊后加工的针对性不强，铣床加工精度过于富裕，夹紧结构较为复杂，夹紧过程费时费力，工作人员劳动强度较大，生产效率低下的问题。
The present invention discloses a special milling machine and processing method for machining after rotary welding of a tower crane, comprising a support base, a slide rail, a power head and a rotary fixing device, wherein a slide table is arranged on the slide rail, the lower end of the rotary fixing device is arranged on the slide rail through the slide table, the upper end of the slide rail is swivel-connected to the rotary fixing device, the upper side of the support base is located at the upper end of the rotary fixing device and is welded and fixed with a power head, and the lower end of the power head is swivel-connected to a milling cutter disc. In the process of rotating the swivel support and driving the workpiece to rotate, the present invention uses the milling cutter disc to mill the machining surface of the workpiece, so that the feed path is circular and can be consistent with the machining surface of the workpiece, so that the workpiece can be processed quickly and efficiently, with high production efficiency and strong pertinence. The present invention solves the problems that the existing milling machine is not pertinent to the machining after rotary welding of the tower crane, the machining accuracy of the milling machine is too rich, the clamping structure is relatively complex, the clamping process is time-consuming and labor-intensive, the labor intensity of the staff is high, and the production efficiency is low.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a special milling machine for machining after rotary welding of a tower crane and a machining method.
Background
Milling machine, mainly refer to the lathe that uses milling cutter to carry on the processing to multiple surface of the work piece, usually milling cutter uses rotary motion as the main motion, work piece and movement of milling cutter are feed motion, milling machine is mainly divided into desk-top milling machine, cantilever milling machine, ram milling machine, planer-type milling machine, plane milling machine, etc., it is a kind of comparatively extensive lathe that uses, it can process various planes, slot, also can process the curved surface, more complicated profile such as gear, in addition can also be used for processing and cutting off work etc. to solid of revolution surface, hole, its rigidity is good, the burden is high, the machining precision is high, and efficiency is high relative to the planer, receive wide application in the machine manufacturing and repair department, wherein apply to the mainly planer-type milling machine of post-machine processing of tower machine gyration, but it still has following drawback in the in-service use:
1. The existing milling machine is a universal milling machine, the pertinence of the rotary post-welding processing of the tower crane is not strong, for example, when a planer type milling machine is used for processing, a feeding path is a straight line, a rotary processing surface is a ring-shaped surface, the surface to be processed can be processed only by taking a plurality of straight lines, and the stop times are more, so that the production efficiency is low;
2. in order to meet the processing of various precise workpieces, the existing milling machine is generally provided with a plurality of finishing functions, and the functions are not needed when a tower crane rotates a weldment, for example, the large-size lifting of a power head is not needed, the processing precision is excessively rich, the early investment of equipment is higher, and the cost performance is not high;
3. the clamping structure of the existing milling machine cannot be well adapted to a rotary welding piece of a tower crane, the clamping structure is complex, the clamping process is time-consuming and labor-consuming, the labor intensity of workers is high, and the production speed is reduced.
Therefore, the existing special milling machine for the rotary post-welding machining of the tower crane cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a special milling machine for post-rotary welding machining of a tower crane, which solves the problems that the existing milling machine is low in pertinence to post-rotary welding machining of the tower crane, the milling machine machining precision is excessive, the early investment of equipment is high, the clamping structure is complex, the clamping process is time-consuming and labor-consuming, the labor intensity of staff is high and the production efficiency is low through a supporting base, a sliding rail, a power head and a rotary fixing device.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a special milling machine for post-rotary welding machining of a tower crane, which comprises a supporting base, a sliding rail, a power head and a rotary fixing device, wherein the upper side of the supporting base is fixedly welded with the sliding rail, the sliding rail is provided with the sliding table, the lower end of the rotary fixing device is arranged on the sliding rail through the sliding table, the upper end of the sliding rail is rotatably connected with the rotary fixing device, when the special milling machine is used for machining, a feeding path is circular and is matched with the annular surface of a workpiece machining surface, all machining surfaces are finished, the production efficiency is doubled, the pertinence is high, the power head is fixedly welded at the upper end of the rotary fixing device, the lower end of the power head is rotatably connected with a milling cutter disc, the workpiece can be quickly milled through the milling cutter disc, the up-down displacement of the power head is suitable for machining the workpiece, the up-down distance does not need to be adjusted, the pertinence is high, the production efficiency is high, compared with a general milling machine, the special milling machine has a simple structure, the equipment cost is low, the equipment front investment is greatly reduced, and the cost is high in performance price.
Further, a rack is arranged on one end side part of the supporting base, the rack is provided with a vertical supporting part and a horizontal supporting part, the lower end of the vertical supporting part of the rack is arranged on one end side part of the supporting base, the horizontal supporting part of the rack extends to the upper part of the sliding table along the arc shape of the upper end of the vertical supporting part, a power head is arranged on the horizontal supporting part of the rack, the upper end of the power head is arranged on the horizontal supporting part of the rack, the lower end of the power head is perpendicular to the upper surface of the supporting base, the sliding rail is positioned at the other end of the supporting base, and the supporting base is firmly arranged on a reinforced concrete foundation, so that the invention is positioned on a horizontal plane, and the machining precision is improved.
Further, the sliding table is clamped on the upper side of the sliding rail, the upper surface of the supporting plate is perpendicular to the power head on the horizontal supporting part of the frame, and the main shaft of the power head is perpendicular to the upper surface of the supporting plate. The sliding table can realize the left-right movement of the workpiece through the sliding rail, so that the power head is convenient for processing the workpiece, the labor intensity of workers is reduced, and the processing speed is improved.
Further, a slewing bearing is arranged on the sliding table, a plurality of slewing fixing devices are arranged at intervals along the edge of the upper surface of the slewing bearing, and the lower surface of each slewing fixing device is screwed and fixed on the edge of the upper surface of the slewing bearing.
Further, one end of the slewing bearing is rotationally connected and fixed with a slewing drive mechanism, and an output shaft of the slewing drive mechanism is in transmission connection with the slewing bearing through a drive gear.
Further, a supporting plate is fixed on the outer side of the sliding table below the slewing bearing, a supporting frame is arranged on the lower surface of the end part of the supporting plate, the supporting frame is welded and fixed on the lower surface of the supporting plate, and the slewing driving mechanism is arranged at the upper end of the supporting frame. The rotary fixing device realizes that the feeding path is circular through the rotary driving mechanism, and can be matched with the processing surface of the workpiece, so that the workpiece can be processed rapidly and efficiently, the production efficiency is high, and the pertinence is stronger.
Further, the clamping assemblies fixed with the workpieces are respectively arranged on the rotary fixing device, the clamping assemblies are welded and fixed at the center of the upper end of the rotary fixing device, the workpieces are fixedly connected to the upper side of the rotary fixing device in a rotating mode, the edges of the workpieces can be fixed through the rotary fixing device, the workpieces can be further clamped by the clamping assemblies, stability of the workpieces in machining is achieved, operation is simple, and pertinence is strong.
The invention has the following beneficial effects:
1. The rotary fixing device is arranged, so that the problem that the existing milling machine is a universal milling machine, the pertinence of the rotary post-welding processing of the tower crane is not strong, for example, when the planer type milling machine is used for processing, a feeding path is a straight line, a rotary processing surface is a ring-shaped surface, the surface to be processed can be processed only by taking a plurality of straight lines, the stop times are more, the production efficiency is low is solved, the feeding path of the rotary fixing device is circular and is matched with the ring-shaped surface of the processing surface of a workpiece, the processing is completed after one circle of processing surface is finished, and the production efficiency is doubled.
2. The invention solves the problems of higher equipment early investment and low cost performance caused by the fact that the existing milling machine is provided with a supporting base, a sliding rail, a power head and a rotary fixing device, and is usually provided with a plurality of finishing functions for processing various precise workpieces, and the functions are not required when a rotary welding piece of a tower crane is processed, such as large-size lifting of the power head, and the processing precision is too rich.
3. The rotary fixing device is arranged, so that the problems that the clamping structure of the existing milling machine cannot be well adapted to a rotary welding piece of a tower crane, the clamping structure is complex, the clamping process is time-consuming and labor-consuming, the labor intensity of workers is high, and the production speed is reduced are solved, the edge and the center of a workpiece can be clamped simultaneously through the rotary fixing device and the clamping assembly, the stability of the workpiece during machining is improved, the machining precision is improved, and the quality of the machined workpiece is guaranteed.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention;
Fig. 4 is a structural view of the support base and the slide rail of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. The device comprises a supporting base, 101, a frame, 2, a sliding rail, 201, a sliding table, 202, a supporting plate, 3, a power head, 301, a milling cutter disc, 4, a rotary fixing device, 401, a rotary support, 402, a clamping assembly, 403, a rotary driving mechanism, 403a, a driving gear, 404, a supporting frame and 5, and a workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-4, the invention discloses a special milling machine for post-rotary welding machining of a tower crane, which comprises a support base 1, a sliding rail 2, a power head 3 and a rotary fixing device 4, wherein the sliding rail 2 is fixedly welded on the upper side of the support base 1, a sliding table 201 is arranged on the sliding rail 2, the lower end of the rotary fixing device 4 is arranged on the sliding rail 2 through the sliding table 201, the upper end of the sliding table 201 is rotatably connected with the rotary fixing device 4, the power head 3 is fixedly welded on the upper end of the rotary fixing device 4 on the upper side of the support base 1, a milling cutter disc 301 is rotatably connected on the lower end of the power head 3, a workpiece can be rapidly milled through the milling cutter disc, the up-down displacement of the power head on the milling cutter disc is suitable for machining the workpiece, the up-down distance does not need to be adjusted, the pertinence is strong, and the production efficiency is high. When the rotary fixing device 4 is used for processing the workpiece, the feeding path is circular, the feeding path is matched with the annular molded surface of the processing surface of the workpiece 5, all the processing surfaces of the workpiece 5 are finished after one circle of processing, the power head 3 is welded and fixed at the upper end of the rotary fixing device 4 on the upper side of the support base 1, and the power head 3 can mill the processing surface of the workpiece 5.
As shown in fig. 1 and 4, a rack 101 is disposed at one end side of the support base 1, the rack (101) has a vertical support portion and a horizontal support portion, the lower end of the vertical support portion of the rack 101 is disposed at one end side of the support base 1, the horizontal support portion of the rack 101 extends to the upper portion of the sliding table 201 along the arc shape of the upper end of the vertical support portion, a power head 3 is disposed on the horizontal support portion of the rack 101, the upper end of the power head 3 is disposed on the horizontal support portion of the rack 101, the lower end of the power head 3 is perpendicular to the upper surface of the support base 1, the sliding rail 2 is located at the other end of the support base 1 (opposite to the one end of the rack 101), the support base 1 is firmly mounted on a reinforced concrete basis, the left and right movement of the workpiece 5 can be achieved through the sliding rail 2, the power head 3 is convenient for machining the workpiece 5, the up and down displacement of the power head 3 relative to the cutter 301 is suitable for machining the workpiece 5, and the workpiece 5 can be quickly milled through the cutter 301.
As shown in fig. 2-3, the sliding table 201 is clamped on the upper side of the sliding rail 2, the upper surface of the sliding table 201 is perpendicular to the power head 3 on the horizontal supporting portion of the frame 101, the main shaft of the power head 3 is perpendicular to the planes of the sliding table 201 and the supporting base 1, so that the milling cutter head 301 performs parallel milling processing on the workpiece 5 when the horizontal plane rotates, a slewing bearing 401 is arranged on the sliding table 201, a plurality of slewing fixing devices 4 are arranged at intervals along the edge of the upper surface of the slewing bearing 401, the slewing bearing 401 is driven to slide and approach the milling cutter head 301 to be fixed in the sliding process of the sliding table 201, the workpiece 5 is milled, the surface to be processed can be processed in a linear manner for a plurality of times, the stability of the workpiece during processing is realized, the operation is simple, the pertinence is strong, the lower surface of the slewing fixing device 4 is rotationally fixed on the edge of the upper surface of the slewing bearing 401, one end of the slewing bearing 401 is rotationally fixed with a slewing driving mechanism 403, the output shaft of the slewing driving mechanism 403 is in transmission connection with the slewing bearing 401 through a driving gear 403a, the supporting plate 202 is fixed on the outer side of the slewing bearing 401, the supporting plate 202 is fixed on the supporting plate 202, the lower end of the supporting plate 202 is fixed on the supporting plate 403, the supporting plate 404 is fixed on the slewing bearing 404 through the supporting frame 404, and the slewing driving mechanism is fixed on the rotating mechanism 404 is driven by the slewing mechanism 404, and the slewing mechanism 404 is fixed on the supporting surface of the supporting mechanism and the slewing mechanism 404.
As shown in fig. 2, the rotary fixing devices 4 are respectively provided with a clamping assembly 402 fixed with a workpiece 5, the center of the upper end of each rotary fixing device 4 is welded and fixed with the clamping assembly 402, the upper side of each rotary fixing device 4 is screwed and fixed with the workpiece 5, the clamping assemblies 402 are screwed and fixed in the center of the lower side of the workpiece 5, the edges of the workpiece 5 can be fixed through the rotary fixing devices 4, and the clamping assemblies 402 can further clamp the center of the workpiece 5, so that the workpiece 5 is stable during processing.
The invention relates to a processing method for milling by utilizing a special milling machine for post-rotary welding machining of a tower crane, which comprises the following steps of installing all components, firmly installing a support base (1) on a foundation, fixedly connecting a sliding table 201, a sliding rail 2 and the support base 1, installing a rotary fixing device 4 on a rotary support 401, installing a frame 101 at one end of the support base 1, and enabling a power head 3 on a horizontal supporting part of the frame 101 to be vertical to the surface of the rotary support 401 downwards; the method comprises the steps of starting a rotary driving mechanism 403, starting the rotary driving mechanism 403, rotating the rotary driving mechanism forward and backward for one circle, enabling a sliding table 201 to reciprocate on a sliding rail 2 for one time, starting a power head 3 to move up and down for one time, driving a milling cutter disc 301 to rotate for 30 seconds, adjusting a workpiece 5 to be processed, clamping the workpiece 5 on a clamping assembly 402 of the rotary fixing device 4, performing trial running of the rotary fixing device 4, driving the rotary fixing device 4 to rotate forward and backward for one circle by the rotary driving mechanism 403, performing trial running of the sliding rail 2, enabling the sliding table 201 to reciprocate on the upper side of the sliding rail 2 for one time, performing trial running of the power head 3, enabling the milling cutter disc 301 to move up and down for one time, rotating for 30 seconds, hanging the workpiece 5 on the upper side of the rotary fixing device 4 after the partial trial running is normal, adjusting relevant positions, clamping and fixing the workpiece 5 through the rotary fixing device 4 and the clamping assembly 402, realizing that the workpiece 5 is processed, and has simple operation and strong pertinence, starting the sliding table 201 to move to the corresponding positions, and is 20-40mm away from the horizontal distance of the milling cutter disc 301, suspending running, enabling the milling cutter disc 301 to extend downwards for a corresponding length, meeting the requirement, starting the milling cutter disc and rotating the milling cutter disc and starting the milling cutter disc 301 to rotate for rotating for less than 300rpm, and enabling the milling cutter disc to rotate to pass through the workpiece 5 to be not lower than the rotating the milling cutter disc 300, the feeding speed of the sliding rail 2 is 1mm-3mm/s, the center of the milling cutter 301 is positioned on the center line between the inner ring and the outer ring of the ring surface of the workpiece 5, the sliding rail 201 is locked, the rotary driving mechanism 403 is started to drive the rotary support 401 to rotate, the rotating speed of the rotary support 401 is smaller than that of the milling cutter 301, the workpiece 5 on the rotary fixing device 4 is driven to conduct ring surface milling in the rotating process, the feeding path is circular through the rotary driving mechanism 403, the workpiece 5 can be matched with the processing surface of the workpiece 5, the workpiece 5 can be processed quickly and efficiently, the production efficiency is high, the pertinence is high, the rotary driving mechanism 403 stops running after the ring surface milling of the workpiece 5 is finished, the milling cutter 301 stops rotating and retracts, the sliding rail 2 returns to the original position, the rotary fixing device 4 and the clamping component 402 are loosened, the milled workpiece 5 is hung out, and the next working cycle is prepared.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present invention.
Claims (3)
1. The processing method of the special milling machine for post-rotary welding machining of the tower crane is characterized in that the special milling machine comprises a supporting base (1), a sliding rail (2), a power head (3) and a rotary fixing device (4), wherein the sliding rail (2) is fixedly welded on the upper side of the supporting base (1), a sliding table (201) is arranged on the sliding rail (2), the lower end of the rotary fixing device (4) is arranged on the sliding rail (2) through the sliding table (201), the upper end of the sliding table (201) is screwed with the rotary fixing device (4), the power head (3) is welded on the upper end of the rotary fixing device (4) on the upper side of the supporting base (1), and a milling cutter disc (301) is screwed on the lower end of the power head (3);
A frame (101) is arranged at one end side part of the support base (1), the frame (101) is provided with a vertical support part and a horizontal support part, the lower end of the vertical support part of the frame (101) is arranged at one end side part of the support base (1), the horizontal support part of the frame (101) extends to the upper part of the sliding table (201) along the arc shape of the upper end of the vertical support part, a power head (3) is arranged on the horizontal support part of the frame (101), the upper end of the power head (3) is arranged on the horizontal support part of the frame (101), the lower end of the power head (3) is vertical to the upper surface of the support base (1), the sliding rail (2) is positioned at the other end of the support base (1), the sliding table (201) is clamped at the upper side of the sliding rail (2), and the surface of the sliding table (201) is vertical to the power head (3) on the horizontal support part of the frame (101), a rotary support (401) is arranged on the sliding table, a plurality of rotary devices (4) are arranged at intervals along the edge of the upper surface of the rotary support (401), and the rotary devices (4) are fixedly connected with the upper edge of the rotary device (401);
A rotary driving mechanism (403) is rotationally connected and fixed at one end of the rotary support (401), an output shaft of the rotary driving mechanism (403) is in transmission connection with the rotary support (401) through a driving gear (403 a), a support plate (202) is fixed at the outer side of a sliding table (201) below the rotary support (401), a support frame (404) is arranged on the lower surface of the end part of the support plate (202), the support frame (404) is welded and fixed on the lower surface of the support plate (202), the rotary driving mechanism (403) is arranged at the upper end of the support frame (404), and clamping assemblies (402) for fixing workpieces (5) are respectively arranged on the rotary fixing devices (4);
The processing method of the special milling machine comprises the following steps of:
step 1, installing all components, firmly installing a supporting base (1) on a foundation, fixedly connecting a sliding table (201) and a sliding rail (2) with the supporting base (1), installing a frame (101) at one end of the supporting base (1) after installing a rotary fixing device (4) on a rotary support (401), and enabling a power head (3) on a horizontal supporting part of the frame (101) to be vertical to the surface of the rotary support (401) downwards;
Step 2, debugging each component, starting the rotary driving mechanism (403), rotating the rotary driving mechanism in a positive and negative direction for one circle, enabling the sliding table (201) to reciprocate on the sliding rail (2) once, starting the power head (3) to move up and down once, and driving the milling cutter disc (301) to rotate for 30 seconds;
Step 3, adjusting a workpiece (5) for mounting and processing, when the workpiece (5) is clamped on a clamping assembly (402) of a rotary fixing device (4), starting a sliding table (201) to move to a corresponding position, suspending operation, enabling the milling cutter head (301) to extend downwards to a corresponding length, meeting the first feed milling amount, and starting the milling cutter head (301) to rotate, wherein the horizontal distance from the milling cutter head (301) is 20-40 mm:
step 4, milling the workpiece (5), starting the sliding rail (2) and moving to a milling through ring surface of the workpiece (5), enabling the center of the milling cutter disc (301) to be positioned on a central line between the inner ring surface and the outer ring surface of the workpiece (5), locking the sliding table (201), starting the rotary driving mechanism (403) to drive the rotary support (401) to rotate, and driving the workpiece (5) on the rotary fixing device (4) to mill the ring surface in the rotating process;
And 5, after the milling of the annular surface of the workpiece (5) is finished, stopping the rotary driving mechanism (403), stopping the rotation of the milling cutter disc (301) and retracting the sliding rail (2) to return to the original position, loosening the clamping assembly (402), and hoisting the milled workpiece (5) out to prepare for the next working cycle.
2. A method according to claim 1, characterized in that in step 4, the slide (2) is started and moved to the milling toroidal surface of the workpiece (5), the slide (2) being fed at a speed of 1mm-3mm/s.
3. A machining method according to claim 1, characterized in that the rotational speed of the milling cutter head (301) is not lower than 300rpm, and the rotational speed of the driving slewing bearing (401) is lower than the speed of the milling cutter head (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424037.7A CN113182568B (en) | 2021-04-20 | 2021-04-20 | A special milling machine and processing method for tower crane rotary welding post-machining |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110424037.7A CN113182568B (en) | 2021-04-20 | 2021-04-20 | A special milling machine and processing method for tower crane rotary welding post-machining |
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| Publication Number | Publication Date |
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| CN113182568A CN113182568A (en) | 2021-07-30 |
| CN113182568B true CN113182568B (en) | 2025-02-11 |
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| CN118023595B (en) * | 2024-04-12 | 2024-08-16 | 秦皇岛优益创联特种车辆制造有限公司 | Rotatable milling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN215090891U (en) * | 2021-04-20 | 2021-12-10 | 广西建工集团建筑机械制造有限责任公司 | Special milling machine for machining after rotary welding of tower crane |
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| CN2790646Y (en) * | 2005-05-30 | 2006-06-28 | 何凯 | Railway vehicle center plater vertical milling machine |
| CN201823985U (en) * | 2010-10-20 | 2011-05-11 | 天津市三鑫阳光工贸有限公司 | Large-scale autorotation type milling machine capable of adjusting plane gradient for chassis |
| CN109129031B (en) * | 2018-08-28 | 2020-05-05 | 天津大学 | Grinding wheel path generation method for low-speed servo grinding of free-form surface |
| CN212945642U (en) * | 2020-09-04 | 2021-04-13 | 山东总创机械科技有限公司 | Transformer end piece milling equipment |
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2021
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215090891U (en) * | 2021-04-20 | 2021-12-10 | 广西建工集团建筑机械制造有限责任公司 | Special milling machine for machining after rotary welding of tower crane |
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