CN102909611A - Numerical control equipment - Google Patents

Abstract

The numerical control equipment comprises a Z-direction guiding device, a sliding seat for installing the Z-direction guiding device, a sliding seat fixing device, a sliding seat driving device, a workpiece clamping device and a main machining head; the sliding seat comprises a sliding seat bottom plate, a convex part which is convexly arranged on the sliding seat bottom plate, and a first fixed plane is arranged on the outer side surface of the sliding seat bottom plate; the Z-direction guide device comprises a Z-direction guide rod and a Z-direction guide rail driving device; a Z-direction linear guide rail accommodating hole penetrating through the Y-direction sliding seat and the convex part is further formed, and one side surface of the Z-direction linear guide rail accommodating hole is a second fixing plane parallel to the first fixing plane; two first Z-direction linear guide rail tracks are fixed on the second fixing plane, and a second Z-direction linear guide rail track is arranged on the Z-direction guide rod; the main processing head is arranged below the Z-shaped guide rod; the advantages are that the guiding effect is good, and a rotation stopping structure needs to be designed; when the first Z-direction linear guide rail track and the second Z-direction linear guide rail track are abraded, only the first Z-direction linear guide rail track and the second Z-direction linear guide rail track need to be replaced.

Description

a

technical field

The present invention relates to a numerical control equipment, in particular to a main processing head numerical control machine tool, numerical control painting equipment, numerical control welding equipment, numerical control laser cutting equipment, numerical control laser welding equipment, numerical control plasma cutting equipment, numerical control screw mounting equipment, numerical control gas cutting equipment wait.

Background technique

Existing CNC equipment with a gantry structure, such as the invention patent application number 201010284237.9, discloses a CNC gantry vertical compound machine tool, including a base, a workbench, and a column. The columns are movably connected by column guide rails or by fasteners. The composite beam is fixedly connected, and the composite beam is flexibly connected through the beam guide rail or fixedly connected with more than two sliding saddles through the fasteners, and the sliding saddle is flexibly connected to the main shaft device through the ram guide rail; the base, the column, the composite beam, and the main shaft device A screw drive device is provided, and the screw drive device is connected with an electric numerical control device. The main shaft device includes a sliding saddle, on which a balance cylinder is arranged, the upper end of the balance cylinder is connected to the balance cylinder support, and a vertical pressure plate is also connected to the sliding saddle. There is a screw rod inside the saddle, the screw rod is connected with a driving motor, the driving motor is fixed on the saddle through the drive motor seat, a bearing seat is arranged inside the sliding saddle, a bearing is arranged between the bearing seat and the screw rod, and the screw rod is flexibly connected There is a ram, on which a punching cylinder is fixed through a punching cylinder bracket, and a high-speed spindle is set under the punching cylinder, and the high-speed spindle is connected to a timing pulley through a timing belt, and the timing pulley is connected to the main motor, and the main motor passes through the main motor. The motor base is fixed on the ram. When in use, the servo motor drives the worktable screw to rotate, thereby adjusting the position of the worktable so that the workpiece processing part is aligned with the vertical spindle device, the left slide saddle drives the motor, the right slide saddle drives the left slide saddle screw, The right sliding saddle screw rotates to adjust the lateral position of the vertical spindle unit. Then the position of the vertical spindle head is adjusted by the screw rod. After the main motor is started, the high-speed spindle starts to rotate through the synchronous belt pulley and the synchronous belt transmission. The high-speed spindle is equipped with a tool, and the tool connected to it can finish the workpiece. processing. In this invention, the structure of the main shaft device is very complicated, which greatly increases the equipment cost; there are many transmission links, which increases the difficulty of assembly and reduces the machining accuracy.

In the invention patent with the application number 201010155118.3, a CNC machining center is disclosed, which includes a workbench for clamping workpieces. The workbench is provided with a horizontal column, and a cross slide is installed on the horizontal column. The upper end of the cross slide is connected to There is a Y-axis screw, the lower end of the cross slide is connected with an X-axis screw, and the upper part of the Y-axis screw is provided with a vertical column that can extend the vertical ram to move up and down. The vertical column is connected with a Z-axis screw, and the vertical ram It is movably connected to one side of the Z-axis screw rod, and the lower end of the vertical ram is connected to the main shaft with the tool.

In the above-mentioned prior art, the ram on which the main shaft is installed is placed on one side of the screw rod, and is movably connected with the screw rod. The connection between the ram and the screw rod is used for bearing, and the center of gravity deviates from the axis of the screw rod. When the spindle moves up and down, the unbalanced motion produces torsion, which makes the spindle move in the direction of the screw axis, resulting in poor stability and inaccurate positioning of the spindle. , Unsmooth motion, large motion inertia, and fast wear of moving parts further affect the processing accuracy.

Contents of the invention

The technical problem to be solved by the present invention is to provide a numerical control device with good stability when the main processing head moves up and down, and which is not easy to generate unbalanced torque.

Numerical control equipment, including the Z-direction guide device, the slide seat installed with the Z-direction guide device, the slide seat fixing device, the slide seat driving device, the workpiece clamping device, the main processing head, the electric control device, between the slide seat fixing device and the slide seat There are sliding seat guide rails that cooperate with each other; the sliding seat includes a sliding seat bottom plate, which is protruded on the sliding seat bottom plate, and the outer surface has a convex part with a first fixed plane; the Z-direction guide device includes a Z guide rod that can move up and down, a drive The Z-direction rail driving device that the Z guide rod moves up and down; there is a Z-direction linear guide rail accommodation hole that runs through the Y-direction slide seat and the convex part in the Y-direction slide seat and the convex part, and one side of the Z-direction linear guide rail accommodation hole. It is the second fixed plane parallel to the first fixed plane; two first Z-direction linear guide tracks are fixed on the second fixed plane, and the Z guide rod is fixed with the Z guide rod and connected with the corresponding first The second Z-direction linear guide rail matched with the Z-direction linear guide rail track; there is also a Z-direction rod installation hole that runs through the Y-direction slide seat and the convex part and communicates with the Z-direction linear guide rail accommodation hole in the Y-direction slide seat and convex part , the diameter of the installation hole of the Z guide rod is larger than the width of the Z-direction linear guide rail accommodation hole, and less than the length of the Z-direction linear guide rail accommodation hole; the Z guide rod can only move up and down with the Y-direction slide; the main processing head Set below the Z guide bar.

As an improvement of the first solution, the Z guide rod is a circular guide rod, and Z-direction guide and fixing parts are symmetrically protruded on both sides of the Z guide rod, and the second Z-direction linear guide track is fixed on the Z-direction guide and fixation part.

The convex portion includes an upper convex portion protruding vertically upward from the bottom plate of the slide seat and a lower convex portion vertically upwardly protruding from the bottom of the slide seat; a motor support plate is provided on the upper convex portion; the Z-guiding rod driving device includes a driving motor to drive The Z guide rod moves up and down, a Z-direction screw rod connected with the motor shaft of the driving motor, and a screw nut matched with the Z-direction screw rod; the screw nut and the Z guide rod are installed together and the axis position of the Z guide rod is fixed; The drive motor is fixed on the motor support plate, and the end of the Z-direction screw rod away from the drive motor passes through the motor support plate, and the screw nut extends into the Z guide rod and avoids the Z guide rod. The main processing head is set under the Z guide rod, the axis of the Z guide rod and the position of the Z-direction screw are fixed, the main processing head is located directly below the Z-direction screw, the structure of the main shaft device is simple, and the manufacturing cost of the equipment is low; Simple, high machining accuracy; the center of gravity of the main processing head and the axis of the screw are basically on the same straight line, the movement of the main shaft is balanced when it moves up and down, basically no torque is generated to make the main shaft deviate from the direction of the screw axis, and the stability of the main shaft is good when it moves , Accurate positioning, smooth movement, and the moving parts are not easy to wear, thereby further improving the processing accuracy of the equipment.

As an improvement of plan four, a rotating shaft or main shaft that can only rotate relative to the Z guiding rod is provided in the Z guiding rod; the third screw nut is fixed to the Z guiding rod, and a third screw that drives the rotating shaft or the main shaft to rotate is installed on the outer periphery of the rotating shaft or the main shaft. A rotor, a first stator cooperating with the first rotor is installed in the Z guide rod, and the rotating shaft or main shaft can only rotate relative to the Z guide rod. The first stator and the first rotor cooperate to drive the rotating shaft or the main shaft, and the structure is simple and the installation is convenient.

As an improvement of plan four, there is also a first swing seat fixed to the Z guide rod; a second stator is installed in the first swing seat, and a second rotor that is installed in the second stator and cooperates with the second stator is installed in the The first pendulum shaft in the horizontal direction in the second rotor, the main machining head base of the main machining head is fixed on the first pendulum shaft or integrally formed with the first pendulum shaft. The driving of the first balance shaft is realized through the cooperation of the second stator and the second rotor, the structure is simple, the installation is convenient, and the installation space is reduced.

As a common improvement of schemes 1 to 3, the slide seat installed with the Z-direction guide device is a Y-direction slide seat; Seat guide rail, Y guide rail to the right; also includes base, main support column arranged on the base, main support frame arranged on the main support column; main support frame is a closed-loop structure with opening facing vertical direction; in main support frame There are X forward guide rails and X backward guide rails that cooperate with each other between the X slide seat, and an X direction slide that can slide back and forth along the X forward guide rails and X backward guide rails is installed on the X forward guide rails and X backward guide rails. Sliding seat; also includes the first driving device for driving the X-direction sliding seat to move back and forth, and the first driving device for driving the X-direction sliding seat to move back and forth; the sliding seat driving device is the second driving device, and the Z guide rod driving device is the third driving device device. The main support frame is a closed-loop structure. On the one hand, it can transmit the support force supporting the X-direction slide seat to the base evenly, so it has a good load-bearing effect on the X-direction slide seat. It has good rigidity and is very conducive to the processing head from above. The workpiece is processed downwards. On the other hand, the X-direction screw or X-synchronous belt can be located between the X forward guide rail and the X-backward guide rail, so that only one X-direction screw or X-direction synchronous belt can be realized. It is consistent with a power source to drive the X-direction sliding seat, and the machining datum of the guide rail position, which ensures the shape and position accuracy of the guide rail. To drive the X-direction slide to move back and forth, only one X-direction screw or X-direction synchronous belt and one power source are needed, which can overcome the need to install two synchronously moving motors at the positions of the X front guide rail and the X rear guide rail to drive the X direction slide. Because it is difficult for two synchronous motors to achieve completely synchronous motion, or one of the motors slows down or speeds up, the movement of the X-direction slide is unbalanced and torque is generated, causing the X-direction slide to move in the X direction, resulting in The problem of poor stability, inaccurate positioning, and poor movement when the X-direction slide moves. The X-direction screw or the X-direction synchronous belt is located between the X-forward guide rail and the X-rearward guide rail. It can also overcome the problem of only installing a driving device at the position of the X-direction guide rail or the X-rearward guide rail to drive the X-direction slide seat. The force is completely biased to one side, resulting in unbalanced movement of the X-direction slide, resulting in torque that causes the X-direction slide to move in the X direction, resulting in poor stability, inaccurate positioning, poor movement, and too fast movement of the X-direction slide. It cannot adapt to large machine tools with large spacing between X forward guide rails and X backward guide rails. Since the main processing head can move in the X, Y, and Z directions, the workpiece clamping device such as the workbench for clamping the workpiece does not need to move in the X, Y, and Z directions. On the one hand, due to the main processing head and The weight of the X and Y sliding seats of the carrying device is much lighter than the total weight of the traditional workbench and the workpiece that need to be moved to clamp the workpiece, so it can greatly save energy when processing the workpiece and reduce the inertia of the moving parts of the equipment, thereby It can greatly improve the displacement sensitivity of the moving parts and the processing accuracy of the workpiece, increase the moving speed in the X direction and Y direction, improve the processing efficiency, and greatly reduce the wear between the moving parts of the equipment and the guide rail; on the other hand, it can realize the clamping of multiple workpieces. The reciprocating motion or rotary motion of the worktable realizes the transfer of workpieces between different positions and realizes the assembly line operation. Since the X forward guide rail, X backward guide rail, Y left guide rail, Y right guide rail, and Z guide rod are all installed above the workpiece clamping device, the iron chips processed from the workpiece basically do not need special protection. It will not enter the guide rail above the processing head. On the one hand, the structure of the guide rail is simplified, and on the other hand, the life of the guide rail is greatly improved.

As an improvement of the seventh scheme, the first drive device includes a first drive motor, which drives the X-direction slide to move back and forth, and an X motor shaft connected to the motor shaft of the first drive motor parallel to the X front guide rail and the X rear guide rail. The screw rod is the first screw nut matched with the X-direction screw rod; the X-direction screw rod is located between the X forward guide rail and the X backward guide rail; the first drive motor is installed on the main support frame, and the first screw nut is fixed on the On the X-direction sliding seat, the X-direction screw rod cooperates with the first screw nut; the X-direction sliding seat is a square closed-loop structure. The X-direction sliding seat is driven by a screw rod, with simple structure and high displacement precision.

As an improvement of the eighth scheme, the X-direction slide seat includes a square frame with an opening facing the vertical direction, and X-direction guide rail slide seat fixing blocks are protruded from the front and back sides of the frame respectively, and the bottom surfaces of the left and right sides of the square frame are respectively There are lower bumps; the X forward guide rail and the X backward guide rail include the X-direction linear sliding track with balls installed on the main support frame, which are fixed on the bottom surface of the X-direction rail slide seat fixing block to cooperate with the X-direction linear sliding track The X-direction rail slide.

As an improvement of Scheme 7, the main support frame also includes X-direction screw mounts installed on the left and right sides close to the main support frame, the first drive motor is installed on the outer surface of an X-direction screw mount, and the X-direction screw The end of the rod away from the first driving motor passes through the X-direction screw mounting seat on which the first driving motor is installed, and the first screw nut is installed on the X-direction screw mounting seat away from the first driving motor. The X-direction screw mount is easy to ensure that the mounting hole matched with the X-direction screw is concentric, no matter whether the distance between the two ends of the X-direction screw is very far or very close, it is the same, especially the X-direction screw mount is When the universal self-centering mount is used, it can further ensure that the X-direction screw rotates very smoothly.

The beneficial effect of the present invention is: through the cooperation of the first Z-direction linear guide rail and the second Z-direction linear guide rail with the Z-direction guidance, the guiding effect is good, and the Z-direction rod does not need to be designed with anti-rotation structure. Especially when the first Z-direction linear guide rail and the second Z-direction linear guide rail are worn out, it is only necessary to replace the first Z-direction linear guide rail and the second Z-direction linear guide rail without replacing the Z guide rod.

Description of drawings

Fig. 1 is a schematic perspective view of Embodiment 1 of the present invention.

Fig. 2 is a three-dimensional exploded schematic view of the Y-direction slide seat, the Z-direction guide device and the main processing head according to Embodiment 1 of the present invention.

3 is a schematic diagram of the Y-direction sliding seat, the Z-direction guide device, and the main processing head cut along the axis of the Z-direction rod according to Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram cut along line A-A of Fig. 3 .

Fig. 5 is a schematic diagram of the Y-direction sliding seat, the Z-direction guide device and the main processing head cut along the axis of the Z guide rod according to the second embodiment of the present invention.

Detailed ways

Example 1

As shown in FIGS. 1 to 4 , a numerical control device includes an integrally formed main frame 1 and a workbench 2 . The main body frame 1 includes a square base 3, which is integrally formed with the base 3 and is arranged at the four corners of the base 3 and the main support columns 4 respectively arranged at the middle positions of the left side, the right side and the rear side of the base, connecting the main support columns 4 Between horizontal connecting column 5. The main support frame 6 arranged on the main support column 4 is integrally formed with the main support column 4 . The main support frame 6 is a square closed-loop structure with an opening facing the vertical direction.

It also includes the X-direction sliding seat 7. Between the main support frame 6 and the X-direction sliding seat 7, there are mutually matched X forward guide rails and X backward guide rails. The X slide seat 7 can slide back and forth along the X forward guide rail and the X backward guide rail.

The X-direction slide seat 7 comprises a square frame with an opening facing the vertical direction, X-guiding rail slide seat fixing blocks 13 protrude respectively on the front and rear sides of the square frame, and a lower convex portion 14 is provided on the bottom surface of the square frame.

The X forward guide rail and the X backward guide rail include the X-direction linear sliding track 15 provided with balls installed on the main support frame 6, and the X-direction linear sliding track 15 that is fixed on the bottom surface of the X-direction rail slide seat fixing block 13 and cooperates with the X-direction linear sliding track 15. Guide rail slide 16.

It also includes a first driving device that drives the X-direction slide seat 7 to move back and forth; the first drive device includes a first drive motor 10 that drives the X-direction slide seat 7 to move back and forth, and a line parallel to the X-direction linear sliding track 15 that is parallel to the first drive motor 10. An X-direction screw rod 11 connected to the motor shaft of a driving motor 10, a first screw nut (not shown) matched with the X-direction screw rod 11, the first screw nut is fixed on the lower convex part 14 and combined with the X-direction slide seat 7 s position.

It also includes X-direction screw mounts 17 installed on the left and right sides of the main support frame 6, the first drive motor 10 is installed on the outer surface of the X-direction screw mounts 17, and the X-direction screw 11 is far away from the first drive. One end of the motor 10 passes through the X-direction screw mount 17, and the first screw nut (not shown) is installed on the X-direction screw mount 17 away from the first driving motor 10; the X-direction screw 11 is located on two X-direction screw mounts. Between the sliding rails 15 towards the straight line.

It also includes a Y-direction slide seat 18, and a Y-direction left guide rail and a Y-direction right guide rail are provided between the X-direction slide seat 7 and the Y-direction slide seat 18.

It also includes a second drive device that drives the Y slide 18 to move back and forth; the second drive includes a second drive motor 21 that drives the Y slide 18 to move back and forth, and a pair of Y to the left guide rail and Y to the right guide rail. A Y-direction screw 22 connected to the motor shaft of the second driving motor 21 , and a second screw nut (not shown) matched with the Y-direction screw 22 .

The Y-slider 18 includes a Y-slider bottom plate, an upper convex portion 25 protruding vertically upward from the Y-slider bottom plate, and a lower convex portion 26 vertically protruded downwards from the Y-slider bottom plate. An upper convex portion 25 and a lower convex portion 26 protrude around the bottom plate of the Y-direction sliding seat. The second screw nut 24 is fixed at the position where the lower convex part 26 is combined with the bottom plate of the Y-direction slide seat.

The Y-direction slide 18 slide comprises a slide base 51 , an upper protrusion 25 protruding vertically upward from the Y-direction slide base 51 , and a lower protrusion 26 vertically protruding downward from the Y-direction slide base 51 .

The Y-to-left guide rail and the Y-to-right guide rail are slide rails; including a Y-direction linear sliding track 27 directly fixed on the X-direction slide seat 7 with balls, fixed on the bottom surface of the Y-direction slide base plate 51 and Y-direction linear slide The Y guide rail slide seat 29 that track 27 cooperates.

It also includes a Y-direction screw mounting seat 28 installed on the front and rear sides near the X-direction slide seat 7, the second drive motor 21 is installed on the outer surface of the Y-direction screw mounting seat 28, and the Y-direction screw rod 22 is away from the second One end of the driving motor 21 passes through the Y-direction screw mounting base 28 , and the second screw nut (not shown) is installed on the Y-direction screw mounting base 28 away from the second driving motor 21 . The Y-direction screw rod 22 is located between two Y-direction linear slide rails 27 .

Also be provided with the Z direction guide device that is installed on the Y direction slide seat 18. The Z-direction guide includes a circular Z guide rod 30 that can move up and down, a cover plate 31, a rotating shaft that can only rotate relative to the Z guide rod 30, a first rotor 33 and a first stator 34 that drive the rotating shaft to rotate, a bearing 35, and a drive shaft. The third driving device that the Z guide bar 30 moves up and down. A Z-direction linear guide accommodating hole 49 that runs through the Y-direction slide 18 and the protrusion is provided in the Y-direction slide 18 and the convex portion, and one side of the Z-direction linear guide accommodating hole 49 is parallel to the first fixed plane. The second fixed plane; on the second fixed plane, two first Z-direction linear guide rails 36 are fixed on the two sides of the Z-direction bar 30, and the Z-direction fixed part 37 is symmetrically protruded, and on the Z-directed fixed part 37 A second Z-direction linear hard rail track 38 is fixed, and a guide groove 39 cooperating with the first Z-direction linear hard rail track 36 is provided on the second Z-direction linear hard rail track 38 . In the Y-direction slide seat 18 and the convex part, there is also a Z guide rod mounting hole 50 which passes through the Y-direction slide seat 18 and the convex part and communicates with the Z-direction linear guide rail accommodating hole 49. The diameter of the Z guide rod mounting hole 50 is larger than Z. The width of the accommodating hole 49 of the linear guide rail is smaller than the length of the accommodating hole 49 of the Z-direction linear guide rail. The Z guide rod 30 is installed together with the Y-direction sliding seat 18 only movable up and down.

A motor fixing plate 40 is fixed on the upper convex portion 25 .

The third driving device includes a third driving motor 41 and a Z-direction screw rod 42 for driving the Z-direction rod 30 to move up and down. The rotating shaft includes a large shaft 44 that matches the inner hole of the Z guide rod 30 and a small shaft 45 extending from the top of the large shaft. The bearing 35 is sleeved on the small shaft 45 and supported on the large shaft 44. The first rotor 33 is sleeved on the small shaft. On the shaft 45 and supported on the bearing 35 , the first stator 34 is installed in the Z guide rod 30 and cooperates with the first rotor 33 . The cover plate 31 is fixed on the top of the Z guide bar 30 . The third wire nut 46 is fixed on the center of the cover plate 31 and extends into the rotating shaft to avoid the space of the rotating shaft. The third driving motor 41 is installed on the motor fixing plate 40, and one end of the Z-direction screw mandrel 30 is connected with the third driving motor 41 by a shaft coupler 47, and the other end of the Z-direction screw mandrel 30 passes through the motor fixing plate 40 and the third driving motor 41. The screw nut 46 cooperates and stretches into the rotating shaft to avoid the space with the rotating shaft. The Z guide rod 30 passes through the Y-direction slide seat 18 . The lower end of the rotating shaft passes through the Z guiding rod 30 and protrudes from the Z guiding rod 30, and the main processing head 48 is installed on the rotating shaft.

Example 2

As shown in Figure 5, a kind of numerical control equipment is different from Embodiment 1 in that a main shaft 61 is installed in the Z guide rod 60, the tool clamping head 62 of the main processing head is directly fixed on the main shaft 60, and the tool 63 is fixed on the On the tool clamping head 62.

In the present invention, the main processing head may be provided with a tool clamping head, or the main processing head may be a paint spraying head, a welding gun, a laser gun, a plasma cutting gun, a screw gun or a gas cutting gun. When a milling cutter is installed on the tool chuck, the function of milling can be realized; when a grinding wheel is installed on the tool chuck, the function of grinding can be realized; when a boring tool is installed on the tool chuck , the function of boring can be realized; when the drill bit is installed on the tool holder, the function of drilling can be realized; when the main processing head is a painting head, the function of spraying can be realized; when the main processing head is a welding torch, the function of Welding function; when the main processing head is a laser gun, it can realize the function of laser cutting and or laser welding; when the main processing head is a plasma cutting gun, it can realize the function of plasma cutting; when the main processing head is a screw gun, it can realize screw loading function. Since the structure of the main processing head can adopt the existing structure, it will not be described one by one in the present invention.

Claims (9)

1. numerical control device comprises the Z-direction guider, and the slide of Z-direction guider is installed, the slide fixture, slide drive unit, clamping workpiece device, main processing head, electric control gear is characterized in that: be provided with the carriage rail that cooperatively interacts between slide fixture and slide; Slide comprises the slide base plate, is convexly equipped with on the slide base plate, lateral surface is with the protuberance of the first fixed pan; The Z-direction guider comprises the Z-direction guide rod that can move up and down, the Z-direction guide rail drive unit that driving Z-direction guide rod moves up and down; Be provided with the Z-direction line slideway accommodating hole that runs through Y-direction slide and protuberance in Y-direction slide and protuberance, a side of Z-direction line slideway accommodating hole is second fixed pan parallel with the first fixed pan; Be fixed with two the first Z-direction line slideway tracks at the second fixed pan, be provided with the second Z-direction line slideway track of fixing and cooperate with corresponding the first Z-direction line slideway track with the Z-direction guide rod at the Z-direction guide rod; Also be provided with the Z-direction guide rod installing hole that runs through Y-direction slide and protuberance, is communicated with Z-direction line slideway accommodating hole in Y-direction slide and protuberance, the aperture of Z-direction guide rod installing hole is greater than the width of Z-direction line slideway accommodating hole, less than the length of Z-direction line slideway accommodating hole; The Z-direction guide rod only can be installed together with the Y-direction slide with moving up and down; Main processing head is arranged on Z-direction guide rod below.

2. numerical control device as claimed in claim 1 is characterized in that: the Z-direction guide rod is the circle guide rod, convexes with Z-direction fixed guide bonding part in the bilateral symmetry of Z-direction guide rod, and the second Z-direction line slideway track is fixed on Z-direction fixed guide bonding part.

3. numerical control device as claimed in claim 1 or 2 is characterized in that: protuberance comprises the upper convex portion that is convexly equipped with vertically upward from the slide base plate and the lower protuberance that upwards is convexly equipped with from the slide bottom vertical; Upper convex portion is provided with motor support plate; Z-direction guide rod drive unit comprises a drive motors, drives the Z-direction screw mandrel that the Z-direction guide rod moves up and down, is connected with the motor shaft of drive motors, the screw that cooperates with the Z-direction screw mandrel; Screw and Z-direction guide rod are installed together and fix with the axial location of Z-direction guide rod; Drive motors is fixed on the motor support plate, and the Z-direction screw mandrel passes motor support plate, screw away from an end of drive motors and stretches in the Z-direction guide rod and the empty avoiding of Z-direction guide rod.

4. numerical control device as claimed in claim 3 is characterized in that: only be provided with the relatively rotationally rotating shaft of Z-direction guide rod or main shaft in the Z-direction guide rod; The 3rd screw and Z-direction guide rod are fixed, and in the periphery of rotating shaft or main shaft the first rotor of drive shaft or main shaft rotation are installed, and the first stator that cooperates with the first rotor is installed in the Z-direction guide rod, and rotating shaft or main shaft only can rotate relative to the Z-direction guide rod.

5. numerical control device as claimed in claim 3 is characterized in that: also be provided with first swing seat fixing with the Z-direction guide rod; The second stator is installed in the first swing seat, be installed in the second rotor that cooperates with the second stator in the second stator, be installed in the first balance staff of the horizontal direction in the second rotor, the main processing headstock of described main processing head is fixed on the first balance staff or is one-body molded with the first balance staff.

6. numerical control device as claimed in claim 1 or 2 is characterized in that: the slide that the Z-direction guider is installed is the Y-direction slide; The slide fixture is the X-direction slide, and carriage rail is Y-direction seat guide rail, the right guide rail of Y-direction that is installed between Y-direction slide and X-direction slide; Also comprise base, be arranged on main support column on the base, be arranged on the main backstop on the main support column; Described main backstop is that opening is towards the closed-loop structure of vertical direction; Between main backstop and X-direction slide, be provided with the X-direction fromer rail, the X-direction rear rail that cooperatively interact, the X-direction slide that can slidably reciprocate along X-direction fromer rail, X-direction rear rail is installed at X-direction fromer rail, X-direction rear rail; Also comprise driving the first drive unit that the X-direction slide moves back and forth, drive the first drive unit that the X-direction slide moves back and forth; The slide drive unit is the second drive unit, and Z-direction guide rod drive unit is the 3rd drive unit.

7. numerical control device as claimed in claim 6, it is characterized in that: the first drive unit comprises first drive motors, drive that the X-direction slide moves back and forth, the X-direction screw mandrel that with the motor shaft of first drive motors be connected parallel with X-direction fromer rail, X-direction rear rail, the first screw that cooperates with the X-direction screw mandrel; The X-direction screw mandrel is between X-direction fromer rail, X-direction rear rail; The first drive motors is installed on the main backstop, and the first screw is fixed on the X-direction slide, and the X-direction screw mandrel cooperates with the first screw; Described X-direction slide is square closed-loop structure.

8. numerical control device as claimed in claim 7, it is characterized in that: the X-direction slide comprises opening towards the square frame of vertical direction, convexes with respectively X-direction guide rail slide fixed block on the front and back sides of square frame, is equipped with lower protruding block in the bottom surface of the left and right sides of square frame; X-direction fromer rail, X-direction rear rail comprise the X-direction linear slide track that is provided with ball that is installed on the main backstop, are fixed on the X-direction guide rail slide that X-direction guide rail slide fixed block bottom surface cooperates with X-direction linear slide track.

9. numerical control device as claimed in claim 6, it is characterized in that: main backstop also comprises the X-direction screw mandrel mount pad that is installed near the left and right sides of main backstop, the first drive motors is installed on the lateral surface of an X-direction screw mandrel mount pad, and the X-direction screw mandrel passes X-direction screw mandrel mount pad, the first screw that the first drive motors is installed away from an end of the first drive motors and is installed on the X-direction screw mandrel mount pad away from the first drive motors.

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