CN112238311B

CN112238311B - Vertical machining center

Info

Publication number: CN112238311B
Application number: CN202010971740.5A
Authority: CN
Inventors: 曹林峰; 杜龙泉
Original assignee: Nanjing Guchi Cnc Technology Co ltd
Current assignee: Nanjing Guchi Cnc Technology Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-06-03
Anticipated expiration: 2040-09-16
Also published as: CN112238311A

Abstract

The invention discloses a vertical machining center which comprises a base, a guide rail, a lifting machine, a spindle box, a drill bit and an electric cabinet, wherein the guide rail is fixed on the top of the base, the lifting machine and the spindle box are installed on the top of the front end of the guide rail from top to bottom, the drill bit is installed at the bottom of the spindle box, the electric cabinet is installed at the right end of the guide rail, an arc frame is installed on the top of the base, which is located below the spindle box, a tooth block is fixedly connected to the bottom of the arc frame, and a second servo motor is installed at the left end of the base. According to the invention, firstly, the linkage type angle adjusting structure is adopted, so that comprehensive linkage adjustment treatment in the X-axis and Y-axis directions of the workpiece is facilitated, the convenience of workpiece angle adjustment is improved, and meanwhile, the applicability of the device is also improved, so that the actual adjustment, processing and use of the workpiece are facilitated.

Description

Vertical machining center

Technical Field

The invention relates to the technical field of machining centers, in particular to a vertical machining center.

Background

The vertical machining center is a machining center with the axis of a main shaft perpendicular to a workbench and is mainly suitable for machining complex parts such as plates, discs, molds and small shells. The vertical machining center can complete the procedures of milling, boring, drilling, tapping, using cutting threads and the like. The vertical machining center is at least three-axis two-linkage, and generally can realize three-axis three-linkage. However, the existing vertical machining center still has the defects that: firstly, adopt semi-automatic formula adjustment structure mostly, need operating personnel directly to participate in the adjustment when adjusting work piece processing angle, the convenience of adjustment operation is relatively poor, the adjustment structure only is convenient for the adjustment of single direction angle and is handled simultaneously, the adjustment processing use of the work piece of being not convenient for, secondly, when on the work piece clamping workstation, need operating personnel to use anchor clamps, fastener and instrument to carry out the clamping and handle, the clamping operation is wasted time and energy, the daily adjustment clamping and the processing use of the work piece of being not convenient for.

Disclosure of Invention

The invention aims to: the vertical machining center aims to solve the problems that a traditional vertical machining center is difficult to adjust the machining angle of a workpiece conveniently and the adjustment range is small.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vertical machining center comprises a base, a guide rail fixed on the top of the base, a lifter and a spindle box which are arranged on the top of the front end of the guide rail from top to bottom, a drill bit arranged at the bottom of the spindle box and an electric cabinet arranged at the right end of the guide rail, an arc frame is arranged at the top of the base below the main shaft box, a gear block is fixedly connected at the bottom of the arc frame, a second servo motor is arranged at the left end of the base, an output shaft of the second servo motor is connected with a worm which is meshed with the gear block in a transmission way, the top end of the arc frame is rotatably connected with a bracket, the left end of the arc frame is provided with a first servo motor which is driven by the bracket, the top of the bracket is connected with a workbench in a sliding way, the left side of the bottom of the bracket is provided with a first stepping motor, the right end of the first stepping motor is connected with a single-head screw in a transmission mode, and a first threaded sleeve matched with the single-head screw is installed at the bottom end of the workbench.

As a further description of the above technical solution:

the top of the base is symmetrically and fixedly connected with two groups of supports, the inner sides of the two groups of supports are rotatably connected with ball shaft rods, and sliding grooves matched with the ball shaft rods are formed in the arc frame.

As a further description of the above technical solution:

the right-hand member of bracket installs the lock fluted disc, the right side sliding connection that the right-hand member of arc frame is located the lock fluted disc has the smooth knot that is horizontal distribution, install reset spring between smooth knot and the arc frame, the left end fixedly connected with of smooth knot and the hasp of the mutual closure of lock fluted disc.

As a further description of the above technical solution:

the right end of the slide fastener is provided with a magnetic suction block, the right end of the arc frame is positioned on the right side of the magnetic suction block and is provided with a soft iron core, and the outside of the soft iron core is wound with an electrified coil.

As a further description of the above technical solution:

the right-hand member of workstation is installed the second step motor, the left end transmission of second step motor is connected with the double-end screw who runs through the workstation, double-end screw's both ends all overlap and are equipped with the second swivel nut, the externally mounted of second swivel nut has the clamp splice.

As a further description of the above technical solution:

the inner side of the clamping block is connected with a pressing block in a sliding mode, the rear end of the pressing block is horizontally and fixedly connected with a limiting column penetrating through the clamping block, and an extrusion spring is sleeved outside the limiting column and located between the clamping block and the pressing block.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, a linkage type angle adjusting structure is adopted, a second servo motor, a worm and a tooth block are arranged between a base and an arc frame, when the second servo motor drives the worm to rotate, under the rotating action between the worm and the tooth block, the arc frame can integrally rotate and adjust the base in the X-axis direction, meanwhile, a first servo motor is arranged at the left end of the arc frame, a lock tooth disc, a slide fastener, a lock catch, a soft iron core and an electrified coil are arranged between the arc frame and the right end of a bracket, when the first servo motor and the electrified coil are synchronously electrified, the first servo motor can drive the bracket to integrally rotate and adjust the bracket in the Y-axis direction, and simultaneously, when the electrified coil is electrified, the lock catch on the slide fastener can be separated from the lock tooth disc under the action of electromagnetic force, thereby realizing the release of the angle locking of the supporting plate, and the structure is convenient for the comprehensive linkage adjustment of the X-axis direction and the Y-axis direction of a workpiece, not only the convenience of the angle adjustment of the workpiece is improved, but also the applicability of the device is improved, so that the actual adjustment and processing of the workpiece are facilitated.

2. According to the invention, an opposite pressing type clamping structure is adopted, a second stepping motor and a double-end screw rod are arranged at the right end of the workbench, and meanwhile, two groups of second screw sleeves and clamping blocks are arranged on the workbench.

Drawings

FIG. 1 is a schematic diagram of a vertical machining center according to the present invention;

FIG. 2 is a schematic view of the structure at A-A in the present invention;

FIG. 3 is a schematic cross-sectional view of the carriage and the table of the present invention;

FIG. 4 is a schematic cross-sectional view of a clamp block of the present invention;

fig. 5 is a partially enlarged view of the point B in the present invention.

Illustration of the drawings:

1. a base; 101. a support; 102. a ball shaft; 2. a guide rail; 3. a main spindle box; 301. a drill bit; 4. a hoist; 5. an arc frame; 501. a tooth block; 502. a chute; 6. a first servo motor; 7. a bracket; 701. a lock gear disc; 8. a work table; 801. a first threaded sleeve; 9. a first stepper motor; 901. a single-ended screw; 10. a second servo motor; 1001. a worm; 11. an electric cabinet; 12. sliding and buckling; 13. locking; 14. a magnetic suction block; 15. a return spring; 16. a soft iron core; 17. an electrified coil; 18. a second stepping motor; 1801. a double-ended screw; 19. a clamping block; 1901. a second thread insert; 20. a pressing block; 2001. a limiting column; 21. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a vertical machining center comprises a base 1, a guide rail 2 fixed on the top of the base 1, a lifter 4 and a spindle box 3 which are arranged on the top of the front end of the guide rail 2 from top to bottom, a drill bit 301 arranged on the bottom of the spindle box 3 and an electric cabinet 11 arranged on the right end of the guide rail 2, an arc frame 5 is arranged on the top of the base 1 and positioned below the spindle box 3, a tooth block 501 is fixedly connected to the bottom of the arc frame 5, a second servo motor 10 is arranged on the left end of the base 1, an output shaft of the second servo motor 10 is connected with a worm 1001 meshed with the tooth block 501 in a transmission manner, a bracket 7 is rotatably connected to the top end of the arc frame 5, a first servo motor 6 driven by the bracket 7 is arranged on the left end of the arc frame 5, a workbench 8 is slidably connected to the top of the bracket 7, a first stepping motor 9 is arranged on the left side of the bottom of the bracket 7, and a single-head screw 901 is connected to the right end of the first stepping motor 9 in a transmission manner, the bottom end of the working table 8 is provided with a first threaded sleeve 801 matched with the single-head screw 901.

Specifically, as shown in fig. 1 and 5, two sets of supports 101 of the top symmetry fixedly connected with of base 1, the inboard of two sets of supports 101 is all rotated and is connected with ball axle rod 102, arc frame 5's inside seted up with ball axle rod 102 assorted spout 502, two sets of supports 101's setting, the skew and the rocking of arc frame 5 at 1 top Y axle orientation of base have been reduced, ball axle rod 102 and spout 502's setting simultaneously, the frictional force of arc frame 5 at the rotation adjustment of 1 top of base has been reduced, thereby be convenient for the slide adjustment of arc frame 5 at 1 top of base and handle.

Specifically, as shown in fig. 1 and fig. 2, a locking toothed disc 701 is installed at the right end of the bracket 7, a slide fastener 12 which is horizontally distributed is slidably connected to the right end of the arc frame 5 on the right side of the locking toothed disc 701, a return spring 15 is installed between the slide fastener 12 and the arc frame 5, a lock catch 13 which is locked with the locking toothed disc 701 is fixedly connected to the left end of the slide fastener 12, a magnetic attraction block 14 is installed at the right end of the slide fastener 12, a soft iron core 16 is installed on the right side of the magnetic attraction block 14 on the right end of the arc frame 5, an energizing coil 17 is wound around the outside of the soft iron core 16, and the return spring 15 is arranged to realize automatic reset processing of the slide fastener 12 after the energizing coil 17 is powered off, so as to facilitate automatic locking processing of the locking toothed disc 701 and the lock catch 13.

Specifically, as shown in fig. 1, 3 and 4, a second stepping motor 18 is installed at the right end of the workbench 8, a double-headed screw 1801 penetrating through the workbench 8 is connected to the left end of the second stepping motor 18 in a transmission manner, second screw sleeves 1901 are respectively sleeved at both ends of the double-headed screw 1801, a clamping block 19 is installed outside the second screw sleeves 1901, a pressing block 20 is slidably connected to the inner side of the clamping block 19, a limiting column 2001 penetrating through the clamping block 19 is horizontally and fixedly connected to the rear end of the pressing block 20, an extrusion spring 21 is sleeved outside the limiting column 2001 and between the clamping block 19 and the pressing block 20, the double-headed screw 1801 and the second screw sleeves 1901 are arranged to realize synchronous inward or outward movement processing of the two groups of clamping blocks 19, so as to realize adjustment clamping processing of workpieces with different sizes, the extrusion spring 21 is arranged to enable the pressing block 20 to generate outward extrusion force, so that the workpieces are attached to the clamping block 19 more tightly, the arrangement of the limiting column 2001 improves the stability of the sliding adjustment of the pressing block 20 in the horizontal direction.

The working principle is as follows: when the clamping device is used, a power supply is connected, when a workpiece needs to be clamped, the second stepping motor 18 can be controlled to work through the electric cabinet 11, the second stepping motor 18 can drive the double-headed screw 1801 to rotate when working, under the transmission action between the double-headed screw 1801 and the second screw sleeve 1901, the two groups of clamping blocks 19 can synchronously move inwards or outwards on the workbench 8, so that the workpiece can be adjusted and clamped, when the abutting blocks 20 on the two groups of clamping blocks 19 are in contact with the side wall of the workpiece, the pressing springs 21 can be inwards pressed, the pressing springs 21 can generate reverse pressing force, so that the workpiece is pressed and limited to be clamped on the workbench 8, when the angle of the workpiece needs to be adjusted according to the actual processing requirement of the workpiece, the second servo motor 10 can be controlled to work through the electric cabinet 11, when the second servo motor 10 works, the worm 1001 can drive the worm to rotate under the rotating action between the worm 1001 and the tooth block 501, the arc frame 5 can be rotated and adjusted in the X-axis direction on the top of the base 1, the electric control box 11 can control the energizing coil 17 and the first servo motor 6 to work synchronously, when the energizing coil 17 is energized, the soft iron core 16 can generate electromagnetic force, under the action of the electromagnetic force, the magnetic attraction block 14 on the slide fastener 12 can move towards the soft iron core 16, the lock catch 13 on the slide fastener 12 can be separated from the lock toothed disc 701, the unlocking treatment of the bracket 7 is completed, when the first servo motor 6 works, the bracket 7 can be driven to rotate and adjust in the Y-axis direction integrally, when a workpiece on the workbench 8 is adjusted to a proper angle, the second servo motor 10, the energizing coil 17 and the first servo motor 6 can be controlled to stop working, and when the meshing action between the 1001 worm and the toothed block 501, the self-locking after the adjustment in the X-axis direction of the workpiece can be realized, under the effect of the elastic force of the reset spring 15, the slide fastener 12 can move towards the direction of the lock gear disc 701, when the lock catch 13 on the slide fastener 12 contacts the lock gear disc 701, the self-locking after the adjustment of the Y-axis direction of the workpiece is realized, the subsequent processing and use can be carried out, when the whole sliding of the workbench 8 needs to be adjusted, the first stepping motor 9 can be controlled to work through the electric cabinet 11, and under the transmission action between the first stepping motor 9 and the first thread sleeve 801, the workbench 8 can be driven to horizontally slide at the top of the bracket 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A vertical machining center comprises a base (1), a guide rail (2) fixed to the top of the base (1), a lifting machine (4) and a spindle box (3) which are installed at the top of the front end of the guide rail (2) from top to bottom, a drill bit (301) installed at the bottom of the spindle box (3) and an electric cabinet (11) installed at the right end of the guide rail (2), and is characterized in that an arc frame (5) is installed below the spindle box (3) at the top of the base (1), a tooth block (501) is fixedly connected to the bottom of the arc frame (5), a second servo motor (10) is installed at the left end of the base (1), a worm (1001) meshed with the tooth block (501) is connected to an output shaft of the second servo motor (10) in a transmission manner, a bracket (7) is rotatably connected to the top of the arc frame (5), a first servo motor (6) driven by the bracket (7) is installed at the left end of the arc frame (5), the top of the bracket (7) is connected with a workbench (8) in a sliding manner, the left side of the bottom of the bracket (7) is provided with a first stepping motor (9), the right end of the first stepping motor (9) is connected with a single-head screw rod (901) in a transmission manner, and the bottom end of the workbench (8) is provided with a first threaded sleeve (801) matched with the single-head screw rod (901);

the top of the base (1) is symmetrically and fixedly connected with two groups of supports (101), the inner sides of the two groups of supports (101) are rotatably connected with ball shaft rods (102), and sliding grooves (502) matched with the ball shaft rods (102) are formed in the arc frame (5);

a lock fluted disc (701) is installed at the right end of the bracket (7), slide fasteners (12) which are horizontally distributed are slidably connected to the right end of the arc frame (5) on the right side of the lock fluted disc (701), a return spring (15) is installed between the slide fasteners (12) and the arc frame (5), and a lock catch (13) which is mutually locked with the lock fluted disc (701) is fixedly connected to the left end of each slide fastener (12);

the right end of the slide fastener (12) is provided with a magnetic suction block (14), the right end of the arc frame (5) is positioned on the right side of the magnetic suction block (14) and is provided with a soft iron core (16), and the outside of the soft iron core (16) is wound with an energizing coil (17);

a second stepping motor (18) is installed at the right end of the workbench (8), a double-threaded screw (1801) penetrating through the workbench (8) is connected to the left end of the second stepping motor (18) in a transmission mode, second threaded sleeves (1901) are sleeved at two ends of the double-threaded screw (1801), and clamping blocks (19) are installed outside the second threaded sleeves (1901);

the inner side of the clamping block (19) is connected with a pressing block (20) in a sliding mode, the rear end of the pressing block (20) is horizontally and fixedly connected with a limiting column (2001) penetrating through the clamping block (19), and an extrusion spring (21) is sleeved between the clamping block (19) and the pressing block (20) and located outside the limiting column (2001).