CN209035966U - a micro milling machine - Google Patents

Abstract

The utility model relates to field of machining, specifically a kind of Micro Milling Machine, including rack, X is to feed system, Y-direction feed system, turning axis system, turning tool component, Z-direction feed system, automatic turntable and milling component, rack includes pedestal and stand, X is set on pedestal to feed system, and X is equipped with X to slide unit to feed system, Y-direction feed system is set to X on slide unit, and Y-direction feed system is equipped with Y-direction slide unit, turning axis system is set on Y-direction slide unit, and turning axis system front end is equipped with rotatable turning end, elastic fixture block is equipped in turning end, turning tool component is equipped with turning end relative position on pedestal, Z-direction feed system is equipped in stand, and Z-direction feed system is equipped with Z-direction slide unit, automatic turntable is installed on Z-direction slide unit, and automatic turntable is equipped with rotatable Table with revolvable top, milling component are installed on the table with revolvable top.The utility model overall construction design exquisiteness is compact, not only increases work pieces process processing range, but also workpiece processing quality is effectively ensured.

Description

a micro milling machine

technical field

The utility model relates to the field of machining, in particular to a miniature milling machine.

Background technique

With the development of science and technology, there are more and more demands for tiny parts, and at the same time, the requirements for their use function, material properties, structural shape, reliability, etc. are also getting higher and higher. At present, precision and ultra-precision machine tools of conventional size are usually used to process precision three-dimensional tiny parts made of metal materials, but the cost is high, the efficiency is low, and the flexibility is poor. It can reduce production costs and achieve high-speed machining and high-precision motion control. Therefore, it has been gradually promoted and applied. It has important theoretical significance and practical application prospects to take micro-turn-milling machine tools as the research object. Since the external dimensions of the micro-turn-milling machine are much smaller than that of the traditional machine tools, the overall performance of the micro-turn-milling machine is the key to whether it can produce high-precision tiny parts, so its overall design is very important.

Utility model content

The purpose of the utility model is to provide a micro milling machine, the overall structure design is exquisite and compact, which not only enlarges the processing technology range of the workpiece, but also effectively guarantees the processing quality of the workpiece.

The purpose of this utility model is to achieve through the following technical solutions:

A micro milling machine includes a frame, an X-direction feeding system, a Y-direction feeding system, a turning spindle system, a turning tool assembly, a Z-direction feeding system, an automatic turntable and a milling assembly, the frame includes a horizontal base and The vertical frame is arranged vertically at one end of the base, the X-direction feeding system is set on the base, and the X-direction feeding system is provided with an X-direction slide table, and the Y-direction feeding system is set on the X-direction slide. On the table, and the Y-direction feeding system is provided with a Y-direction slide table, the turning spindle system is set on the Y-direction slide table, and the front end of the turning spindle system is provided with a rotatable turning end head, in the The turning end is provided with an elastic clamping block for clamping the workpiece, a turning tool assembly is arranged on the base at a position opposite to the turning end, and a Z-direction feeding system is arranged on the vertical frame, and all the The Z-direction feeding system is provided with a Z-direction slide table, an automatic turntable is installed on the Z-direction slide table, and the automatic turntable is provided with a rotatable turntable surface, and the milling assembly is installed on the turntable surface.

The turning spindle system includes a turning motor, a turning end, and a turning box. The turning box is provided with a rotating shaft. The rotating shaft is supported and installed in the turning box through a bearing, and the front end of the rotating shaft is provided with a rotating shaft. The turning end and the rear end of the rotating shaft are connected with the turning motor through a coupling.

The turning end is provided with a plurality of elastic clamping blocks. When viewed along the axial direction of the turning end, the elastic clamping blocks are petal-shaped, and each elastic clamping block is evenly distributed along the circumferential direction. The front side of the elastic clamping block is provided with an inclined surface, and the rear end is provided with a spring to be fixedly connected with the bottom end of the turning end.

The automatic turntable includes a turntable surface, a rotary motor, a worm and a worm wheel, wherein the worm is driven to rotate by the rotary motor, the worm wheel is engaged with the worm, and the turntable surface is fixedly connected with the worm wheel.

The X-direction feeding system includes an X-direction motor, an X-direction screw nut, an X-direction lead screw, and an X-direction slide table, wherein the X-direction motor and the X-direction lead screw are both arranged on the base, and the X-direction screw The rod is driven to rotate by the X-direction motor, the two sides of the X-direction slide table are slidably connected to the base through the slide rail slider assembly, the X-direction screw nut is sleeved on the X-direction screw, and the X-direction The lower side of the sliding table is fixedly connected with the X-direction nut.

The Y-direction feeding system includes a Y-direction motor, a Y-direction screw nut, a Y-direction lead screw, and a Y-direction slide table, wherein the Y-direction motor and the Y-direction lead screw are both arranged on the X-direction slide table, and the The Y-direction lead screw is driven and rotated by the Y-direction motor, the two sides of the Y-direction slide table are slidably connected to the X-direction slide table through the slide rail slider assembly, and the Y-direction screw nut is sleeved on the Y-direction lead screw, and The lower side of the Y-direction sliding table is fixedly connected with the Y-direction nut.

The Z-direction feeding system includes a Z-direction motor, a Z-direction screw nut, a Z-direction lead screw, and a Z-direction slide table, wherein the Z-direction motor and the Z-direction lead screw are both arranged on the vertical frame, and the Z-direction The lead screw is driven to rotate by the Z-direction motor, the two sides of the Z-direction slide table are slidably connected to the vertical frame through the slide rail slider assembly, the Z-direction screw nut is sleeved on the Z-direction lead screw, and the The lower side of the Z-direction sliding table is fixedly connected with the Z-direction nut.

The advantages and positive effects of the present utility model are:

1. The overall structure design of the utility model is exquisite and compact, wherein the position of the turning end is adjusted by the X-direction feeding system and the Y-direction feeding system, and the position of the milling component is adjusted by the Z-direction feeding system and the automatic turntable, which increases the processing technology of the workpiece. Range, and through the coordination of milling and turning speeds, the machining quality of the workpiece is guaranteed.

2. The turning end of the utility model uses elastic clamping blocks to fix the workpiece, the workpiece is easy to install and disassemble, and the workpiece processing is convenient.

3. The positioning accuracy of the utility model is high, wherein the repeated positioning accuracy of the X-direction feeding system, the Y-direction feeding system and the Z-direction feeding system can reach 0.0002mm.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Fig. 2 is the schematic diagram of the turning spindle system in Fig. 1,

Fig. 3 is a sectional view of the turning spindle system in Fig. 2,

Fig. 4 is the schematic diagram of the automatic turntable in Fig. 1,

Figure 5 is a schematic diagram of the principle of the automatic turntable in Figure 4,

FIG. 6 is a schematic diagram of the principle of the X-direction feeding system in FIG. 1,

FIG. 7 is a schematic diagram of the working principle of the utility model.

Among them, 1 is the turning spindle system, 101 is the turning motor, 102 is the turning end, 103 is the turning box, 104 is the rotating shaft, 105 is the bearing, 106 is the coupling, 107 is the elastic clamping block, and 2 is the Y direction Feeding system, 3 is the X-direction feeding system, 301 is the X-direction motor, 302 is the X-direction nut, 303 is the X-direction screw, 304 is the X-direction slide table, 4 is the turning tool assembly, 5 is the frame, 501 is the base, 502 is the stand, 6 is the milling assembly, 7 is the Z-direction feeding system, 8 is the automatic turntable, 801 is the turntable surface, 802 is the rotating motor, 803 is the worm, and 804 is the worm wheel.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, the utility model includes a frame 5, an X-direction feeding system 3, a Y-direction feeding system 2, a turning spindle system 1, a turning tool assembly 4, a Z-direction feeding system 7, and an automatic turntable 8 and milling assembly 6, the frame 5 includes a horizontal base 501 and a vertical frame 502 vertically arranged at one end of the base 501, the X-direction feeding system 3 is set on the base 501, and the X-direction feeding The system 3 is provided with an X-direction slide table 304 that can move along the X-direction, the Y-direction feeding system 2 is provided on the X-direction slide table 304, and the Y-direction feeding system 2 is provided with an X-direction slide table 304 that can move along the Y direction. The moving Y-direction slide table, the turning spindle system 1 is arranged on the Y-direction slide table, the front end of the turning spindle system 1 is provided with a rotatable turning end head 102, and as shown in FIG. 3, the turning end head 102 is provided with an elastic clamping block 107 for clamping the workpiece, and a turning tool assembly 4 is arranged on the base 501 opposite to the turning end 102. The workpiece is inserted on the turning end 102 during turning and is inserted into the turning end 102. The turning tool assembly 4 is used to complete turning by driving the turning end 102 to rotate. The vertical frame 502 is provided with a Z-direction feeding system 7, and the Z-direction feeding system 7 is provided with a Z-direction feeding system that can be lifted and lowered along the Z-direction. Z-direction slide table, the automatic turntable 8 is installed on the Z-direction slide table, the automatic turntable 8 is provided with a rotatable turntable surface 801, the milling assembly 6 is installed on the turntable surface 801, and the milling assembly 6 passes through The Z-direction feeding system 7 drives up and down, and drives and rotates to adjust the milling angle through the turntable surface 801 .

As shown in FIGS. 2 to 3 , the turning spindle system 1 includes a turning motor 101 , a turning end 102 and a turning box 103 . The turning box 103 is provided with a rotating shaft 104 , and the rotating shaft 104 passes through a bearing 105 The support is installed in the turning box 103 , the front end of the rotating shaft 104 is provided with the turning end 102 , and the rear end of the rotating shaft 104 is connected to the turning motor 101 through a coupling 106 . When the mechanism is in operation, the rotating shaft is driven to rotate by the turning motor 101, thereby driving the turning end 102 at the front end to rotate. In this embodiment, the turning motor 101 is a servo motor.

As shown in FIG. 3 , the turning head 102 is provided with a plurality of elastic clamping blocks 107 for clamping and fixing the workpiece. When viewed along the axial direction of the turning head 102 , the elastic clamping blocks 107 are in the shape of petals. Each elastic clamping block 107 is evenly distributed along the circumferential direction. The front side of the elastic clamping block 107 is provided with an inclined surface, and the rear end is provided with a spring which is fixedly connected with the bottom end of the turning end 102 to push each elastic clamping block 107 inward. Even if each elastic clamping block 107 is opened, the spring is in a compressed state at this time. After the workpiece is inserted between each elastic clamping block 107, the elastic clamping block 107 is released, and the elastic clamping block 107 is reset under the action of the rear end spring and will The workpiece is firmly clamped.

As shown in FIGS. 4 to 5 , the automatic turntable 8 includes a turntable surface 801 , a rotary motor 802 , a worm 803 and a worm wheel 804 , wherein the worm 803 is driven to rotate by the rotary motor 802 , and the worm wheel 804 meshes with the worm 803 and passes through the worm 803 . The worm 803 is driven to rotate, and the turntable surface 801 is fixedly connected with the worm wheel 804 and is driven to rotate by the worm wheel 804 . In this embodiment, the rotating motor 802 is a servo motor.

As shown in FIG. 6 , the X-direction feeding system 3 includes an X-direction motor 301, an X-direction screw nut 302, an X-direction screw 303 and an X-direction slide table 304, wherein the X-direction motor 301 and the X-direction screw 303 are both Set on the base 501, and the X-direction screw 303 is driven to rotate by the X-direction motor 301, and the X-direction slide table 304 is slidably connected to the base 501 through the slide rail slider assembly. The thread nut 302 is sleeved on the X-direction screw 303, and the lower side of the X-direction sliding table 304 is fixedly connected with the X-direction thread nut. When the mechanism works, the X-direction motor 301 drives the X-direction lead screw 303 to rotate, and then drives the X-direction slide table 304 to move through the X-direction nut 302 .

The structure of the Y-direction feeding system 2 and Z-direction feeding system 7 is the same as that of the X-direction feeding system 3, wherein the Y-direction feeding system 2 includes a Y-direction motor, a Y-direction nut, a Y-direction screw and a Y-direction The Y-direction slide table, wherein the Y-direction motor and the Y-direction lead screw are both arranged on the X-direction slide table 304, and the Y-direction lead screw is driven to rotate by the Y-direction motor, and both sides of the Y-direction slide table pass through The slide rail slider assembly is slidably connected to the X-direction slide table 304 , the Y-direction nut is sleeved on the Y-direction lead screw, and the lower side of the Y-direction slide table is fixedly connected to the Y-direction nut. The Z-direction feeding system 7 includes a Z-direction motor, a Z-direction screw nut, a Z-direction lead screw, and a Z-direction slide table, wherein the Z-direction motor and the Z-direction lead screw are both arranged on the stand 502, and the Z-direction The lead screw is driven to rotate by the Z-direction motor, the two sides of the Z-direction slide table are slidably connected to the vertical frame 502 through the slide rail slider assembly, the Z-direction screw nut is sleeved on the Z-direction lead screw, and all The lower side of the Z-direction sliding table is fixedly connected with the Z-direction nut.

As shown in FIG. 7 , the turning tool assembly 4 includes a turning tool holder and a turning tool. The turning tool holder is fixed on the base 501 , and the turning tool is provided with a turning tool holder on the side of the turning end 102 . The lower end of the milling assembly 6 is provided with a rotatable milling cutter.

The working principle of the utility model is:

The utility model completes the workpiece machining through the turning spindle system 1, the turning tool assembly 4 and the milling assembly 6, wherein the turning spindle system 1 adjusts the position through the X-direction feeding system 3 and the Y-direction feeding system 2, and the workpiece is installed on the turning spindle system 1 In the turning end 102 at the front end, the turning tool assembly 4 is fixed on the base 501 and is located at the opposite position of the turning end 102, the workpiece rotates through the turning end 102 and realizes the turning function through the turning tool assembly 4, and the milling assembly 6 is The Z-direction feeding system 7 is used to drive the lifting and lowering, and the angle of the automatic turntable 8 is adjusted to realize the milling function, which enlarges the processing technology range of the workpiece.

As shown in FIG. 7 , the utility model mainly includes four basic movements, such as the rotary motion of the milling cutter, the rotary motion of the workpiece, the X-direction feeding motion and the Y-direction feeding motion of the workpiece. The rotational motion of the milling cutter is the main motion, and the cutting speed is determined by the rotational speed of the milling cutter and the workpiece. The main determining factor is the rotational speed of the milling cutter, especially in high-speed and ultra-high-speed machining processes. , the influence of workpiece rotation speed on cutting speed can be ignored. The rotation speed of the workpiece, the X-direction feedrate, the Y-direction feedrate, and the Z-direction feedrate of the milling cutter together determine the size of the cutting feedrate.

Claims (7)

1. a kind of Micro Milling Machine, it is characterised in that: including rack (5), X to feed system (3), Y-direction feed system (2), turning Axis system (1), turning tool component (4), Z-direction feed system (7), automatic turntable (8) and milling component (6), rack (5) packet It includes horizontal pedestal (501) and is vertical at the stand (502) of the pedestal (501) one end, X is set to institute to feed system (3) It states on pedestal (501), and the X is equipped with X to slide unit (304) to feed system (3), Y-direction feed system (2) is set to the X To on slide unit (304), and the Y-direction feed system (2) is equipped with Y-direction slide unit, and turning axis system (1) is set to the Y-direction slide unit On, and turning axis system (1) front end is equipped with rotatable turning end (102), sets in the turning end (102) There is the elastic fixture block (107) for clamping workpiece, is set on the pedestal (501) with turning end (102) relative position There are turning tool component (4), be equipped with Z-direction feed system (7) on the stand (502), and the Z-direction feed system (7) is equipped with Z-direction Slide unit, automatic turntable (8) are installed on the Z-direction slide unit, and the automatic turntable (8) is equipped with rotatable table with revolvable top (801), Milling component (6) is installed on the table with revolvable top (801).

2. Micro Milling Machine according to claim 1, it is characterised in that: the turning axis system (1) includes turning motor (101), turning end (102) and turning cabinet (103), the turning cabinet (103) is interior to be equipped with rotary shaft (104), the rotation Shaft (104) is installed in the turning cabinet (103) by bearing (105) bearing, and rotary shaft (104) front end is equipped with institute It states turning end (102), rotary shaft (104) rear end is connected by shaft coupling (106) with the turning motor (101).

3. Micro Milling Machine according to claim 1 or 2, it is characterised in that: be equipped with multiple bullets in the turning end (102) Property fixture block (107), look along the axial direction of the turning end (102), the elastic fixture block (107) is in petaloid, and each bullet Property fixture block (107) it is circumferentially uniformly distributed, inclined-plane is equipped on front side of the elastic fixture block (107), rear end is equipped with spring and turning End (102) bottom end is connected.

4. Micro Milling Machine according to claim 1, it is characterised in that: the automatic turntable (8) include table with revolvable top (801), Rotating electric machine (802), worm screw (803) and worm gear (804), wherein worm screw (803) passes through the rotating electric machine (802) driving rotation Turn, worm gear (804) is engaged with the worm screw (803), and table with revolvable top (801) and the worm gear (804) are connected.

5. Micro Milling Machine according to claim 1, it is characterised in that: the X to feed system (3) include X to motor (301), X is to screw (302), X to lead screw (303) and X to slide unit (304), and wherein X is to motor (301) and X to lead screw (303) Be set to the pedestal (501) on, and the X to lead screw (303) by the X to motor (301) drive rotate, the X to Slide unit (304) two sides are slidably connected by sliding-rail sliding component with the pedestal (501), and X is set in the X to screw (302) To on lead screw (303), and the X is connected with the X to screw to slide unit (304) downside.

6. Micro Milling Machine according to claim 1, it is characterised in that: the Y-direction feed system (2) includes Y-direction motor, Y To screw, Y-direction lead screw and Y-direction slide unit, wherein Y-direction motor and Y-direction lead screw are set to the X on slide unit (304), and the Y It is rotated to lead screw by the Y-direction motor driven, Y-direction slide unit two sides are sliding to slide unit (304) by sliding-rail sliding component and X Dynamic connection, Y-direction nut sleeve are loaded on the Y-direction lead screw, and are connected on the downside of the Y-direction slide unit with the Y-direction screw.

7. Micro Milling Machine according to claim 1, it is characterised in that: the Z-direction feed system (7) includes Z-direction motor, Z To screw, Z-direction lead screw and Z-direction slide unit, wherein Z-direction motor and Z-direction lead screw are set on the stand (502), and the Z-direction silk Thick stick is rotated by the Z-direction motor driven, and Z-direction slide unit two sides are slided by sliding-rail sliding component and the stand (502) Connection, Z-direction nut sleeve are loaded on the Z-direction lead screw, and are connected on the downside of the Z-direction slide unit with the Z-direction screw.