Milling and grinding integrated processing machine tool and processing method thereof

Abstract

The application discloses a milling and grinding integrated processing machine tool and a processing method thereof. The processing machine tool comprises a machine tool base, a first moving shaft, a second moving shaft, a clamping mechanism, a rotating mechanism and a milling and grinding mechanism. The first moving shaft and the second moving shaft are arranged on the machine tool base; the clamping mechanism is arranged on the first moving shaft and comprises a driving part and a clamping part; the rotating mechanism is arranged on the second moving shaft and comprises a rotating table and a stand column, the rotating table is rotatably arranged on the second moving shaft, and the stand column is vertically arranged on the rotating table; the milling and grinding mechanism is arranged on the stand column and comprises a vertical milling and grinding part and a horizontal milling and grinding part, and the vertical milling and grinding part and the horizontal milling and grinding part are arranged on different sides of the stand column. The application can solve the problem that the milling and grinding processing procedure of a part cannot be performed on the same machine tool and multiple clamping leads to low part processing precision in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to a milling-grinding integrated machining machine tool and a machining method thereof. BACKGROUND

[0002] The machining processes of existing machined parts are usually completed on different machine tools. For parts that need to be milled and ground on the inner and outer surfaces, a process of rough milling-precision milling-rough grinding-precision grinding is usually adopted for the inner and outer surfaces respectively, and this process needs to be realized by changing different machine tools, which is complex and has high equipment procurement cost. In addition, the machining of the parts on different machine tools needs to be clamped for many times, which is easy to cause wear of the parts, thereby further reducing the machining precision and machining efficiency. SUMMARY

[0003] The main purpose of the present application is to provide a milling-grinding integrated machining machine tool and a machining method thereof, so as to solve the problem that the milling and grinding machining processes of the parts in the prior art cannot be performed on the same machine tool, and the multiple clamping leads to low machining precision of the parts.

[0004] According to one aspect of the present application, a milling-grinding integrated machining machine tool is provided, comprising:

[0005] A machine tool base is provided with a first moving shaft and a second moving shaft, the first moving shaft extends along an X direction, and the second moving shaft extends along a Z direction perpendicular to the X direction;

[0006] A clamping mechanism is provided on the first moving shaft and moves along the X direction under the driving of the first moving shaft, the clamping mechanism comprises a driving part and a clamping part, the driving part is connected with the clamping part to drive the clamping part to move along a Y direction, and the Y direction is perpendicular to the X direction and the Z direction;

[0007] A rotating mechanism is provided on the second moving shaft and moves along the Z direction under the driving of the second moving shaft, the rotating mechanism comprises a rotating table and a vertical column, the rotating table is rotatably provided on the second moving shaft, and the vertical column is vertically provided on the rotating table;

[0008] A milling-grinding mechanism is provided on the vertical column, the milling-grinding mechanism comprises a vertical milling-grinding part and a horizontal milling-grinding part, and the vertical milling-grinding part and the horizontal milling-grinding part are provided on different sides of the vertical column.

[0009] Further, the driving part comprises:

[0010] A moving box is arranged on the first moving shaft, and has a containing cavity. An opening and a mounting plate are arranged on one side of the moving box close to the rotating mechanism. The opening is communicated with the containing cavity, and the mounting plate is arranged at the opening.

[0011] A lead screw is arranged in the containing cavity, and extends along the Y direction. The mounting plate is movably mounted on the lead screw.

[0012] A first driving motor is arranged on the upper surface of the moving box, and is connected with the lead screw to drive the lead screw to rotate, thereby driving the mounting plate to move along the Y direction.

[0013] Further, the clamping component comprises:

[0014] A machine tool spindle is rotatably arranged on the mounting plate.

[0015] A clamping piece is arranged on one end of the machine tool spindle close to the rotating mechanism to clamp the workpiece to be machined.

[0016] Further, the vertical milling and grinding component comprises:

[0017] A first base is arranged on the first side of the column.

[0018] A first driving assembly is arranged on the first base, and comprises a second driving motor and a third driving motor. The second driving motor and the third driving motor are arranged on the upper and lower sides of the first base respectively. The rotation shafts of the first driving motor and the second driving motor extend along the height direction of the machine tool base.

[0019] A first milling and grinding assembly comprises a first milling piece and a first grinding piece. One of the first milling piece and the first grinding piece is connected with the rotation shaft of the second driving motor, and the other is connected with the rotation shaft of the third driving motor.

[0020] Further, the horizontal milling and grinding component comprises:

[0021] A second base is arranged on the second side of the column.

[0022] A second driving assembly is arranged on the second base, and comprises a fourth driving motor and a fifth driving motor. The fourth driving motor and the fifth driving motor are arranged on the opposite sides of the second base respectively. The rotation shafts of the fourth driving motor and the fifth driving motor extend along the direction parallel to the upper surface of the machine tool base.

[0023] a second milling and grinding assembly, the second milling and grinding assembly comprising a second milling member and a second grinding member, one of the second milling member and the second grinding member being connected with the rotating shaft of the fourth driving motor, and the other of the second milling member and the second grinding member being connected with the rotating shaft of the fifth driving motor.

[0024] Further, the milling and grinding integrated machining tool further comprises a dressing mechanism, the dressing mechanism comprising:

[0025] a third moving shaft, the third moving shaft being arranged on the tool base and extending along the X direction;

[0026] a fourth moving shaft, the fourth moving shaft being arranged on the third moving shaft and extending along the Z direction;

[0027] a dresser, the dresser being arranged on the fourth moving shaft;

[0028] a laser sensor, the vertical milling and grinding component comprising a first grinding member, the horizontal milling and grinding component comprising a second grinding member, the laser sensor being used for detecting the wear degree of the first grinding member and the second grinding member.

[0029] Further, the first moving shaft, the second moving shaft, the third moving shaft and the fourth moving shaft are provided with dust covers.

[0030] In another aspect, the application further provides a milling and grinding integrated machining tool machining method, the milling and grinding integrated machining tool machining method being executed by using the above milling and grinding integrated machining tool, and the milling and grinding integrated machining tool machining method comprising:

[0031] a surface milling and grinding step: controlling the rotary table to rotate to a first predetermined position, and using the vertical milling and grinding component to mill and grind the outer surface of the workpiece clamped by the clamping member;

[0032] a cavity milling and grinding step: controlling the rotary table to rotate to a second predetermined position, and using the horizontal milling and grinding component to mill and grind the workpiece clamped by the clamping member to process a smooth cavity on the workpiece;

[0033] a dressing step: using the laser sensor to detect the wear degree of the first grinding member and the second grinding member, and using the dresser to dress the first grinding member and the second grinding member.

[0034] Further, the milling and grinding integrated machining tool machining method sets the machining program by taking the end point of the workpiece closest to the rotary table as the reference point of the machining program.

[0035] Further, in the surface milling and grinding step, according to the machining program, the first milling part is controlled to mill the outer surface of the workpiece at least once by the first moving axis and the second moving axis interpolation until the required machining shape is reached, and after the milling is completed, the first grinding part is controlled to grind the outer surface at least once by the first moving axis and the second moving axis interpolation; and / or,

[0036] In the inner cavity milling and grinding step, according to the machining program, the second milling part is controlled to mill the workpiece at least once by the first moving axis and the second moving axis interpolation until the required cavity is reached, and after the milling is completed, the second grinding part is controlled to grind the inner cavity at least once by the first moving axis and the second moving axis interpolation; and / or,

[0037] In the trimming step, according to the detection result of the laser sensor, the trimmer is controlled to polish the worn first grinding part and the second grinding part respectively by the third moving axis and the fourth moving axis interpolation.

[0038] In the present application, the workpiece to be machined is clamped on the clamping part, the clamping part is connected with the driving part and drives the workpiece to move along the Y direction under the driving of the driving part, and the driving part can move along the X direction under the driving of the first moving axis, thereby driving the workpiece to move along the X direction. The vertical milling and grinding part and the horizontal milling and grinding part are installed on different sides of the column, and the column is vertically installed on the rotary table located on the second moving axis, at this time, the rotary table moves along the Z direction under the driving of the second moving axis, thereby driving the vertical milling and grinding part and the horizontal milling and grinding part on the column to move along the Z direction. As can be seen, when the milling and grinding process of the workpiece to be machined is needed, the milling and grinding of the workpiece to be machined can be realized on the same machine tool under the cooperation of the first moving axis, the second moving axis and the rotary table. Compared with the prior art which uses multiple machine tools to process parts, the milling and grinding of the workpiece to be machined is realized on the same machine tool, and the workpiece to be machined only needs to be clamped once on the machine tool, and the milling and grinding process can be carried out, which improves the machining accuracy of the workpiece to a certain extent, simplifies the machining process and improves the machining efficiency of the machine tool. BRIEF DESCRIPTION OF DRAWINGS

[0039] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 A structure schematic diagram of a milling and grinding integrated machining machine tool disclosed by the embodiments of the present application;

[0041] Figure 2A front view of a milling-grinding integrated machining machine tool disclosed by the embodiment of the present application;

[0042] Figure 3 A milling-grinding track schematic diagram of a surface milling-grinding step disclosed by the embodiment of the present application;

[0043] Figure 4 A milling-grinding track schematic diagram of a cavity milling-grinding step disclosed by the embodiment of the present application;

[0044] Figure 5 A trimming track schematic diagram of a first grinding element disclosed by the embodiment of the present application;

[0045] Figure 6 A trimming track schematic diagram of a second grinding element disclosed by the embodiment of the present application;

[0046] Figure 7 A flow chart of a machining method of a milling-grinding integrated machining machine tool disclosed by the embodiment of the present application.

[0047] Among them, the above-mentioned drawings include the following reference signs:

[0048] 10, machine tool base; 20, first moving shaft; 30, second moving shaft; 40, clamping mechanism; 41, driving part; 411, moving box; 4110, accommodating cavity; 4111, opening; 4112, mounting plate; 412, first driving motor; 42, clamping part; 421, machine tool spindle; 422, clamping element; 50, rotating mechanism; 51, rotating table; 52, column; 60, milling-grinding mechanism; 61, vertical milling-grinding part; 611, first base; 612, first driving assembly; 6121, second driving motor; 6122, third driving motor; 613, first milling-grinding assembly; 6131, first milling element; 6132, first grinding element; 62, horizontal milling-grinding part; 621, second base; 622, second driving assembly; 6221, fourth driving motor; 6222, fifth driving motor; 623, second milling-grinding assembly; 6231, second milling element; 6232, second grinding element; 70, trimming mechanism; 71, third moving shaft; 72, fourth moving shaft; 73, trimmer; 80, dust cover. DETAILED DESCRIPTION

[0049] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0050] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0051] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the actual dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the description. In all examples shown and discussed herein, any specific value is to be interpreted as merely an example, and not as a limitation. Thus, other examples of the example embodiments can have different values. It is noted that like numbers and letters refer to like elements throughout the several views of the drawings, and thus, once an element is defined in one drawing, it is not necessary to discuss it further in the remaining drawings.

[0052] As mentioned in the background, the machining processes of the existing machined parts need to be completed on different machine tools, the process is complex, the equipment procurement cost is high, and in the process of replacing multiple machine tools, the parts are clamped multiple times, which is easy to cause wear of the parts, thereby reducing the machining precision. Therefore, in order to avoid the complex machining process of the machine tool and the low machining precision of the parts, the inventors of the present application design a new type of milling-grinding integrated machining machine tool, which will be described in detail below.

[0053] Referring to Figures 1 to 7 As shown in the drawings, the present application provides a milling-grinding integrated machining machine tool, hereinafter referred to as a machining machine tool, which comprises a machine tool base 10, a first moving shaft 20, a second moving shaft 30, a clamping mechanism 40, a rotating mechanism 50 and a milling-grinding mechanism 60.

[0054] The first moving shaft 20 extends along the X direction, and the second moving shaft 30 extends along the Z direction perpendicular to the X direction; the clamping mechanism 40 is arranged on the first moving shaft 20 and moves along the X direction under the driving of the first moving shaft 20, the clamping mechanism 40 comprises a driving part 41 and a clamping part 42, the driving part 41 is connected with the clamping part 42 to drive the clamping part 42 to move along the Y direction, the Y direction is perpendicular to the X direction and the Z direction; the rotating mechanism 50 is arranged on the second moving shaft 30 and moves along the Z direction under the driving of the second moving shaft 30, the rotating mechanism 50 comprises a rotating table 51 and a column 52, the rotating table 51 is rotatably arranged on the second moving shaft 30, and the column 52 is vertically arranged on the rotating table 51; the milling and grinding mechanism 60 is arranged on the column 52, and the milling and grinding mechanism 60 comprises a vertical milling and grinding part 61 and a horizontal milling and grinding part 62, the vertical milling and grinding part 61 and the horizontal milling and grinding part 62 are arranged on different sides of the column 52.

[0055] In the embodiment, the clamping mechanism 40 comprises the driving part 41 and the clamping part 42, the rotating mechanism 50 comprises the rotating table 51 and the column 52, and the milling and grinding mechanism 60 comprises the vertical milling and grinding part 61 and the horizontal milling and grinding part 62. When the machining machine tool is actually processed, the first moving shaft 20 extending along the X direction and the second moving shaft 30 extending along the Z direction can be installed on the machine tool base 10, then the driving part 41 is installed on the first moving shaft 20 and connected with the clamping part 42, at this time, the driving part 41 and the clamping part 42 move along the X direction under the driving of the first moving shaft 20, and the driving part 41 can drive the clamping part 42 to move along the Y direction, after the rotating table 51 provided with the column 52 is arranged on the second moving shaft 30, the vertical milling and grinding part 61 and the horizontal milling and grinding part 62 are arranged on different sides of the column 52, wherein the column 52 and the rotating table 51 are arranged as a hollow turret structure, so that the milling and grinding of the parts can be realized on the same machine tool, the low machining precision caused by multiple clamping of the parts is effectively avoided, and the part machining efficiency is further improved. In addition, since the rotating mechanism 50 is a turret structure, the electric control, gas source and hydraulic oil pipeline of the vertical milling and grinding part 61 and the horizontal milling and grinding part 62 can be arranged in the column 52, thereby effectively reducing the complexity of the pipeline on the machine tool.

[0056] That is to say, when the machining tool is actually used, the workpiece to be machined is clamped on the clamping component 42, the clamping component 42 is connected with the driving component 41 and drives the workpiece to be machined to move along the Y direction under the driving of the driving component 41, and the driving component 41 can move along the X direction under the driving of the first moving shaft 20, thereby driving the workpiece to be machined to move along the X direction. The vertical milling and grinding component 61 and the horizontal milling and grinding component 62 are installed on different sides of the column 52, and the column 52 is vertically installed on the rotating table 51 located on the second moving shaft 30, at this time, the rotating table 51 moves along the Z direction under the driving of the second moving shaft 30, thereby driving the vertical milling and grinding component 61 and the horizontal milling and grinding component 62 on the column 52 to move along the Z direction. As can be seen, when the milling and grinding process of the workpiece to be machined is needed, the milling and grinding of the workpiece to be machined can be realized on the same machine tool under the cooperation of the first moving shaft 20, the second moving shaft 30 and the rotating table 51. Compared with the prior art of using multiple machine tools to process parts, the milling and grinding of the workpiece to be machined is realized on the same machine tool in the embodiment, and the workpiece to be machined only needs to be clamped once on the machine tool, and the milling and grinding process can be performed, which improves the machining precision of the workpiece to a certain extent, simplifies the machining process, and improves the machining efficiency of the machine tool.

[0057] Further, referring to Figure 1 The driving component 41 in the embodiment includes a moving box 411, a lead screw and a first driving motor 412. The moving box 411 is arranged on the first moving shaft 20 and has a containing cavity 4110. An opening 4111 and a mounting plate 4112 are arranged on the side of the moving box 411 close to the rotating mechanism 50. The opening 4111 is in communication with the containing cavity 4110, and the mounting plate 4112 is arranged at the opening 4111. The lead screw is arranged in the containing cavity 4110 and extends along the Y direction (not shown in the figure). The mounting plate 4112 is movably mounted on the lead screw. The first driving motor 412 is arranged on the upper surface of the moving box 411 and is connected with the lead screw to drive the lead screw to rotate, thereby driving the mounting plate 4112 to move along the Y direction. Since the driving component 41 is connected with the clamping component 42 and the clamping component 42 is used to clamp the workpiece to be machined, when the position of the workpiece to be machined needs to be changed, the first driving motor 412 is only needed to be started, at this time, the first driving motor 412 drives the lead screw to rotate, thereby driving the mounting plate 4112 to move along the Y direction, thereby adjusting the position of the workpiece to be machined along the Y direction. Meanwhile, the moving box 411 can be driven by the first moving shaft 20 to move along the X direction, thereby driving the workpiece to be machined to move along the X direction. The structure is simple, easy to operate and has high implementability.

[0058] Further, in order to clamp the workpiece to be processed, the clamping component 42 in the embodiment comprises a machine tool spindle 421 and a clamping piece 422. Wherein, the machine tool spindle 421 is rotatably arranged on the mounting plate 4112; the clamping piece 422 is arranged on one end of the machine tool spindle 421 close to the rotating mechanism 50 to clamp the workpiece to be processed. In the embodiment, the workpiece to be processed is clamped at the clamping piece 422, and the clamping piece 422 is installed on one end of the machine tool spindle 421 close to the rotating mechanism 50. When the machining machine tool starts to work, first, the workpiece to be processed is adjusted to the required position by using the first moving shaft 20 and the driving component 41, and the machine tool spindle 421 is driven to rotate under the driving of the driving component 41, so as to drive the workpiece to be processed to rotate. Thus, in the machining process, the workpiece to be processed can fully contact with the milling and grinding workpiece, so as to quickly complete the machining step, save the machining time, and effectively improve the machining efficiency of the machine tool.

[0059] Further, the vertical milling and grinding component 61 in the embodiment comprises a first base 611, a first driving assembly 612 and a first milling and grinding assembly 613. Wherein, the first base 611 is arranged on the first side of the column 52; the first driving assembly 612 is arranged on the first base 611, the first driving assembly 612 comprises a second driving motor 6121 and a third driving motor 6122, the second driving motor 6121 and the third driving motor 6122 are respectively arranged on the upper and lower sides of the first base 611, the rotating shafts of the second driving motor 6121 and the third driving motor 6122 extend along the height direction of the machine tool base 10; the first milling and grinding assembly 613 comprises a first milling cutter 6131 and a first grinding wheel 6132, one of the first milling cutter 6131 and the first grinding wheel 6132 is connected with the rotating shaft of the second driving motor 6121, and the other is connected with the rotating shaft of the third driving motor 6122. As shown in the figure, Figure 1 In the embodiment, the first milling cutter 6131 is a milling cutter, and the first grinding wheel 6132 is a grinding wheel. Thus, when the outer surface of the workpiece to be processed needs to be processed, first, the milling cutter is driven to rotate by the second driving motor 6121, and then the milling cutter is driven to rotate and mill the outer surface of the workpiece by the cooperation of the first moving shaft 20, the second moving shaft 30 and the rotating table 51, so as to form a predetermined shape. Then, the grinding wheel is driven to rotate by the third driving motor 6122, so as to polish the outer surface of the workpiece by the grinding wheel, so as to control the smoothness and roughness of the outer surface of the workpiece, effectively ensure the smoothness of the outer surface of the workpiece, and finally realize high machining precision.

[0060] Further, the horizontal milling and grinding component 62 in the embodiment comprises a second base 621, a second driving assembly 622 and a second milling and grinding assembly 623. The second base 621 is arranged on the second side of the column 52; the second driving assembly 622 is arranged on the second base 621, and the second driving assembly 622 comprises a fourth driving motor 6221 and a fifth driving motor 6222, the fourth driving motor 6221 and the fifth driving motor 6222 are arranged on opposite sides of the second base 621 respectively, and the rotating shafts of the fourth driving motor 6221 and the fifth driving motor 6222 extend in a direction parallel to the upper surface of the machine tool base 10; the second milling and grinding assembly 623 comprises a second milling cutter 6231 and a second grinding wheel 6232, one of the second milling cutter 6231 and the second grinding wheel 6232 is connected with the rotating shaft of the fourth driving motor 6221, and the other is connected with the rotating shaft of the fifth driving motor 6222. Referring to Figures 1 to 2 As shown, the second milling cutter 6231 is connected with the rotating shaft of the fourth driving motor 6221, and the second grinding wheel 6232 is connected with the rotating shaft of the fifth driving motor 6222. In the embodiment, the second milling cutter 6231 is a milling cutter, and the second grinding wheel 6232 is a grinding wheel. Thus, when the inner surface of the workpiece to be machined needs to be machined, the fourth driving motor 6221 is used to drive the milling cutter to rotate, and the first moving shaft 20, the second moving shaft 30 and the rotating table 51 are cooperated to make the milling cutter rotate while milling the inner surface of the workpiece to form a predetermined shape, and then the fifth driving motor 6222 is used to drive the grinding wheel to rotate, so that the grinding wheel polishes the inner surface of the workpiece to control the smoothness and roughness of the inner surface of the workpiece, effectively guaranteeing the quality of the milling and grinding of the inner surface of the workpiece, and further improving the machining precision of the workpiece. In addition, since the horizontal milling and grinding component 62 adopts the double-output spindle and long tool bar cutter structure, it can machine the inner surface of the workpiece with a super-long diameter ratio, and has strong versatility.

[0061] Further, the milling-grinding integrated processing machine tool in the embodiment further comprises a dressing mechanism 70, the dressing mechanism 70 comprises a third moving shaft 71, a fourth moving shaft 72, a dresser 73 and a laser sensor. The third moving shaft 71 is arranged on the machine tool base 10 and extends along the X direction; the fourth moving shaft 72 is arranged on the third moving shaft 71 and extends along the Z direction; the dresser 73 is arranged on the fourth moving shaft 72; the vertical milling-grinding component 61 comprises a first grinding piece 6132, the horizontal milling-grinding component 62 comprises a second grinding piece 6232, and the laser sensor is used to detect the wear degree of the first grinding piece 6132 and the second grinding piece 6232. Since the first grinding piece 6132 and the second grinding piece 6232 are both grinding wheels, the grinding wheels will be worn after a long time of work, so the grinding wheels need to be dressed. In the embodiment, the laser sensor is used to detect the wear degree of the grinding wheel, and if the wear degree reaches a predetermined value, the dressing mechanism 70 will start to dress the grinding wheel. The dresser 73 moves along the X direction and the Z direction under the driving of the third moving shaft 71 and the fourth moving shaft 72, and rotates under the cooperation of the rotary table 51 to dress the first grinding piece 6132 and the second grinding piece 6232. This dressing process does not need to disassemble the grinding wheel, effectively improving the working efficiency of the machine tool.

[0062] Further, the first moving shaft 20, the second moving shaft 30, the third moving shaft 71 and the fourth moving shaft 72 in the embodiment are provided with dust covers 80, as shown in Figures 1 to 2 The purpose of providing the dust cover 80 in the embodiment is to protect the machine tool from damage by external impurities and heavy objects, improve the precision and quality of the machine tool processing, and avoid the influence of external impact and pressure on the machine tool during production, effectively protect the precision components of the machine tool, improve the stability and reliability of the machine tool, and prolong the service life of the machine tool to a certain extent.

[0063] On the other hand, the application also provides a machining method of the milling-grinding integrated processing machine tool, hereinafter referred to as the machining method, which is executed by using the above-mentioned machining tool. Therefore, the machining method comprises all the technical effects of the above-mentioned machining tool. Since the technical effects of the machining tool have been described in detail in the foregoing, they will not be described here.

[0064] Further, as shown in Figure 7 The machining method of the milling-grinding integrated processing machine tool in the embodiment comprises:

[0065] The surface milling-grinding step: control the rotary table 51 to rotate to a first predetermined position, and use the vertical milling-grinding component 61 to mill and grind the outer surface of the workpiece clamped by the clamping member 422;

[0066] The inner cavity milling and grinding step: the rotating table 51 is controlled to rotate to a second predetermined position, and the milling and grinding of the workpiece clamped by the clamping member 422 is performed by the horizontal milling and grinding member 62 to process a smooth cavity on the workpiece;

[0067] The trimming step: the wear degree of the first grinding member 6132 and the second grinding member 6232 is detected by the laser sensor, and the first grinding member 6132 and the second grinding member 6232 are trimmed by the trimmer 73.

[0068] The first predetermined position and the second predetermined position are determined according to the type of the workpiece. In the surface milling and grinding step, the outer surface of the workpiece is first milled by the first milling member 6131, and then ground by the first grinding member 6132. In the inner cavity milling and grinding step, the inner part of the workpiece is first milled to a predetermined shape by the second milling member 6231 to form a cavity, and then polished by the second grinding member 6232 to obtain a smooth cavity. At the same time, during the processing of the workpiece, the workpiece only needs to be clamped once to complete the milling and grinding processes, effectively avoiding errors caused by secondary clamping, improving the processing quality of the workpiece to a certain extent, and ensuring the processing precision of the workpiece.

[0069] Further, the processing method of the milling and grinding integrated processing machine tool in the embodiment sets the end point of the workpiece closest to the rotating table 51 as the reference point of the processing program for processing program setting. In this way, the workpiece can be quickly positioned on the machine tool, and the end point of the workpiece closest to the rotating table 51 is used as the initial point of the machine tool processing, which facilitates the full contact between the inner and outer surfaces of the workpiece and the milling and grinding tools, and is beneficial to the operation of the processing process.

[0070] Further, in the surface milling and grinding step, the first milling member 6131 is controlled to mill the outer surface of the workpiece at least once by the first moving shaft 20 and the second moving shaft 30 interpolation according to the processing program until the required processing shape is obtained. After milling, the first grinding member 6132 is controlled to grind the outer surface at least once by the first moving shaft 20 and the second moving shaft 30 interpolation.

[0071] The trajectory diagram of the milling and grinding of the outer surface of the workpiece is as follows: Figure 3As shown, when the outer surface milling and grinding are performed in the embodiment, the vertical milling and grinding component 61 is selected as the main shaft, and the first milling piece 6131 and the first grinding piece 6132 are installed on the first base 611. According to the machining program, first, the rotating table 51 is controlled to rotate to a predetermined position, so that the vertical milling and grinding component 61 approaches the workpiece to be machined, then the first milling piece 6131 is driven to rotate by the second driving motor 6121, and the first moving shaft 20 and the second moving shaft 30 are interpolated to perform at least one outer surface milling process of the workpiece, until the required machining shape is reached, then the first grinding piece 6132 is driven to rotate by the third driving motor 6122, and the first moving shaft 20 and the second moving shaft 30 are interpolated to perform at least one grinding process of the outer surface of the workpiece, until the required smoothness is reached.

[0072] Further, in the inner cavity milling and grinding step of the embodiment, according to the machining program, the second milling piece 6231 is controlled to perform at least one milling on the workpiece to be machined by interpolation of the first moving shaft 20 and the second moving shaft 30, until the required cavity is reached, and after the milling is completed, the second grinding piece 6232 is controlled to perform at least one grinding on the inner cavity by interpolation of the first moving shaft 20 and the second moving shaft 30.

[0073] The trajectory diagram of the inner cavity milling and grinding of the workpiece to be machined is as shown in Figure 4 As shown, when the inner cavity milling and grinding are performed in the embodiment, the horizontal milling and grinding component 62 is selected as the main shaft, and the second milling piece 6231 and the second grinding piece 6232 are installed on the second base 621. According to the machining program, first, the rotating table 51 is controlled to rotate to a predetermined position, so that the second milling piece 6231 approaches the workpiece to be machined, then the second milling piece 6231 is driven to rotate by the fourth driving motor 6221, and the first moving shaft 20 and the second moving shaft 30 are interpolated to perform at least one inner cavity milling process of the workpiece, until the inner cavity reaches the required machining shape, then the rotating table 51 is rotated by 180°, so that the second grinding piece 6232 approaches the workpiece to be machined, then the second grinding piece 6232 is driven to rotate by the fifth driving motor 6222, and the first moving shaft 20 and the second moving shaft 30 are interpolated to perform at least one grinding process of the outer surface of the workpiece, until the required smoothness is reached.

[0074] Further, in the dressing step of the embodiment, according to the detection results of the laser sensor, the dresser 73 is controlled to polish the worn first grinding piece 6132 and the second grinding piece 6232 respectively by interpolation of the third moving shaft 71 and the fourth moving shaft 72.

[0075] The dressing trajectory diagram of the first grinding piece 6132 and the second grinding piece 6232 is as shown in Figures 5 to 6As shown, the first embodiment first detects the wear degree of the first grinding part 6132 and the second grinding part 6232 by using the laser sensor, and if the wear degree reaches the required trimming value, the trimmer is used to trim the first grinding part 6132 and the second grinding part 6232. When the first grinding part 6132 is trimmed, the second moving shaft 30 drives the rotating mechanism 50 away from the workpiece, at the same time, the rotary table 51 rotates by 45°, so that the first grinding part 6132 approaches the position where the trimmer 73 is located, and then interpolation is performed by relying on the third moving shaft 71 and the fourth moving shaft 72 and the rotation axis of the rotary table 51 itself, and the trimmer 73 is controlled to grind the worn first grinding part 6132 until the trimming of the first grinding part 6132 is completed.

[0076] When the second grinding part 6232 is trimmed, the second moving shaft 30 drives the rotating mechanism 50 away from the workpiece, at the same time, the rotary table 51 rotates by 45°, so that the second grinding part 6232 approaches the position where the trimmer 73 is located, and then interpolation is performed by relying on the third moving shaft 71 and the fourth moving shaft 72 and the rotation axis of the rotary table 51 itself, and the trimmer 73 is controlled to grind the worn second grinding part 6232 until the trimming of the second grinding part 6232 is completed.

[0077] In summary, the milling and grinding integrated machining machine tool of the present application has the following advantages:

[0078] (1) The machining machine tool of the present application has the functions of milling and grinding the inner and outer surfaces of the super-length-diameter-ratio workpiece, is powerful, and has a wide range of applications;

[0079] (2) The machining machine tool of the present application can realize trimming of two grinding wheels without disassembling the grinding wheel, effectively improving the working efficiency of the machine tool;

[0080] (3) The workpiece to be machined of the machining machine tool of the present application is clamped on the horizontally arranged workpiece spindle, and the turret structure is adopted, so that the arrangement on the machine tool is more compact, saving the use space;

[0081] (4) The horizontal milling and grinding part of the machining machine tool of the present application adopts a double-output spindle and a long tool bar cutter structure, which can process the inner surface of the super-length-diameter-ratio part, and the workpiece only needs to be clamped once to complete the milling and grinding two processes, effectively avoiding the error caused by secondary clamping, and improving the workpiece machining quality;

[0082] (5) The machining machine tool of the present application adopts a hollow turret structure, which is convenient for connecting the pipe lines of the spindle grinding head, such as electric control, gas source and hydraulic oil, and reduces the complexity of the structure.

[0083] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated at 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0084] In addition, it should be pointed out that the use of "first", "second" and the like words to qualify parts, is only intended to facilitate the distinction of the corresponding parts, and unless otherwise stated, the above words do not have special meanings, and therefore cannot be understood as limiting the scope of protection of the present application.

[0085] The preferred embodiments of the present application have been described above with the purpose of enabling not to limit the scope of protection of the present application, but of enabling a person skilled in the art to make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A combined milling and grinding machine tool, characterized in that, The machine tool base (10) is provided with a first moving shaft (20) and a second moving shaft (30), the first moving shaft (20) extends along the X direction, and the second moving shaft (30) extends along the Z direction perpendicular to the X direction; The clamping mechanism (40) is arranged on the first moving shaft (20) and moves along the X direction under the driving of the first moving shaft (20), and the clamping mechanism (40) comprises a driving part (41) and a clamping part (42), the driving part (41) is connected with the clamping part (42) to drive the clamping part (42) to move along the Y direction, and the Y direction is perpendicular to the X direction and the Z direction; The rotating mechanism (50) is arranged on the second moving shaft (30) and moves along the Z direction under the driving of the second moving shaft (30), and the rotating mechanism (50) comprises a rotating table (51) and a column (52), the rotating table (51) is rotatably arranged on the second moving shaft (30), and the column (52) is vertically arranged on the rotating table (51); The milling and grinding mechanism (60) is arranged on the column (52), and the milling and grinding mechanism (60) comprises a vertical milling and grinding part (61) and a horizontal milling and grinding part (62), the vertical milling and grinding part (61) and the horizontal milling and grinding part (62) are arranged on different sides of the column (52); The milling and grinding integrated machining tool further comprises a trimming mechanism (70), and the trimming mechanism (70) comprises: A third moving shaft (71) is arranged on the machine tool base (10), and the third moving shaft (71) extends along the X direction; A fourth moving shaft (72) is arranged on the third moving shaft (71), and the fourth moving shaft (72) extends along the Z direction; A trimmer (73) is arranged on the fourth moving shaft (72); A laser sensor is arranged on the vertical milling and grinding part (61) and the horizontal milling and grinding part (62), and the laser sensor is used for detecting the wear degree of the first grinding part (6132) and the second grinding part (6232). The driving part (41) comprises:

2. The milling and grinding integrated machine tool according to claim 1, characterized in that, A moving box (411) is arranged on the first moving shaft (20), the moving box (411) has a containing cavity (4110), one side of the moving box (411) close to the rotating mechanism (50) is provided with an opening (4111) and a mounting plate (4112), the opening (4111) communicates with the containing cavity (4110), and the mounting plate (4112) is arranged at the opening (4111); ​ A lead screw is arranged in the accommodating cavity (4110), the lead screw extends along the Y direction, and the mounting plate (4112) is movably mounted on the lead screw; A first driving motor (412) is arranged on the upper surface of the moving box (411), the first driving motor (412) is connected with the lead screw to drive the rotation of the lead screw, thereby driving the movement of the mounting plate (4112) along the Y direction.

3. The milling and grinding integrated machine tool according to claim 2, characterized in that, The clamping component (42) comprises: A machine tool spindle (421) is rotatably arranged on the mounting plate (4112); A clamping piece (422) is arranged on one end of the machine tool spindle (421) close to the rotating mechanism (50) to clamp the workpiece to be machined.

4. The hybrid milling and grinding machine tool of claim 1, wherein, The vertical milling and grinding component (61) comprises: A first base (611) is arranged on the first side of the column (52); A first driving assembly (612) is arranged on the first base (611), the first driving assembly (612) comprises a second driving motor (6121) and a third driving motor (6122), the second driving motor (6121) and the third driving motor (6122) are arranged on the upper and lower sides of the first base (611) respectively, the rotation shafts of the second driving motor (6121) and the third driving motor (6122) extend along the height direction of the machine tool base (10); A first milling and grinding assembly (613) comprises a first milling piece (6131) and a first grinding piece (6132), one of the first milling piece (6131) and the first grinding piece (6132) is connected with the rotation shaft of the second driving motor (6121), and the other is connected with the rotation shaft of the third driving motor (6122).

5. The hybrid milling and grinding machine tool of claim 1, wherein, The horizontal milling and grinding component (62) comprises: A second base (621) is arranged on the second side of the column (52); A second driving assembly (622) is arranged on the second base (621), the second driving assembly (622) comprises a fourth driving motor (6221) and a fifth driving motor (6222), the fourth driving motor (6221) and the fifth driving motor (6222) are arranged on opposite sides of the second base (621) respectively, and the rotation shafts of the fourth driving motor (6221) and the fifth driving motor (6222) extend along a direction parallel to the upper surface of the machine tool base (10); The second milling and grinding assembly (623) comprises a second milling cutter (6231) and a second grinding cutter (6232), one of which is connected with the rotating shaft of the fourth driving motor (6221), and the other of which is connected with the rotating shaft of the fifth driving motor (6222).

6. The hybrid milling and grinding machine tool of claim 1, wherein, Dust covers (80) are arranged on the first moving shaft (20), the second moving shaft (30), the third moving shaft (71) and the fourth moving shaft (72).

7. A processing method of a milling-grinding integrated processing machine tool, characterized by, The milling and grinding integrated machining method is executed by the milling and grinding integrated machining tool of any one of claims 1 to 6, and comprises the following steps: A surface milling and grinding step: the rotating table (51) is controlled to rotate to a first predetermined position, and the vertical milling and grinding component (61) is used to mill and grind the outer surface of the workpiece clamped by the clamping member (422); An inner cavity milling and grinding step: the rotating table (51) is controlled to rotate to a second predetermined position, and the horizontal milling and grinding component (62) is used to mill and grind the workpiece clamped by the clamping member (422) to process a smooth cavity on the workpiece; A dressing step: the laser sensor is used to detect the wear degree of the first grinding cutter (6132) and the second grinding cutter (6232), and the dresser (73) is used to dress the first grinding cutter (6132) and the second grinding cutter (6232).

8. The machining method of the combined milling and grinding machine tool according to claim 7, characterized in that, The milling and grinding integrated machining method sets the machining program by taking the end point of the workpiece closest to the rotating table (51) as the reference point of the machining program.

9. The machining method of the combined milling and grinding machine tool according to claim 8, characterized in that, In the surface milling and grinding step, according to the machining program, the first milling cutter (6131) is controlled to mill the outer surface of the workpiece at least once by interpolation of the first moving shaft (20) and the second moving shaft (30) until the required machining shape is achieved, and after the milling is completed, the first grinding cutter (6132) is controlled to grind the outer surface at least once by interpolation of the first moving shaft (20) and the second moving shaft (30); and / or, In the inner cavity milling and grinding step, according to the machining program, the second milling cutter (6231) is controlled to mill the workpiece at least once by interpolation of the first moving shaft (20) and the second moving shaft (30) until the required cavity is achieved, and after the milling is completed, the second grinding cutter (6232) is controlled to grind the inner cavity at least once by interpolation of the first moving shaft (20) and the second moving shaft (30); and / or, In the dressing step, according to the detection result of the laser sensor, the dresser (73) is controlled to polish the worn first grinding cutter (6132) and the second grinding cutter (6232) respectively by interpolation of the third moving shaft (71) and the fourth moving shaft (72).

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