CN116160042A - Adopt 3+2+1 planer-type microprill hole center - Google Patents

Abstract

The invention discloses a 3+2+1 gantry-type micro-hole drilling center, including a base, a workbench, a two-dimensional precision numerical control turntable equipped with a disc-type workbench, an integrated gantry beam, a slide plate, and a ram , headstock, driving device one, driving device two, driving device three, driving device four, driving device five and driving device six. The whole machine of the present invention has reasonable structure, stable and reliable quality, and ingenious conception. It adopts three linear axes and two rotating axes for accurate positioning, which can meet the requirements of drilling at any angle. It adopts flexible manual feed axis, single-axis movement, and automatic rebound reset. The operation is flexible and convenient, and it is equipped with precision drilling base and guide sleeve, especially for the processing of micro, thin and small holes in non-orthogonal planes, which effectively improves the drilling accuracy and improves the phenomenon that the drill bit is easy to break.

Description

A 3+2+1 type gantry type micro-hole drilling center

technical field

The invention belongs to the technical field of drilling, and in particular relates to a 3+2+1 gantry-type micro-hole drilling center.

Background technique

At present, the processing equipment for the hole system is mostly ordinary radial drilling machine, CNC vertical machining center, CNC gantry drilling and milling center, etc., and more conventional hole systems are processed on the orthogonal surface. Most of them use five-axis machining centers and auxiliary processing with tooling.

Its main defect is that conventional drilling equipment cannot meet the processing of micro, thin and small holes on non-orthogonal surfaces, and the drilling will be affected by factors such as too small drill bits, difficult positioning of non-orthogonal surfaces, large drill vibration, and easy breakage of drill bits. The processing quality of the workpiece, especially the processing of key parts used in enterprises such as aviation, aerospace, and military industry.

Contents of the invention

In view of the problems raised by the above-mentioned background technology, the object of the present invention is to provide a 3+2+1 type gantry type micro-hole drilling center.

For realizing above-mentioned technical purpose, the technical scheme that the present invention adopts is as follows:

A 3+2+1 type gantry-type micro-hole drilling center, including a base, a worktable, a two-dimensional precision CNC turntable equipped with a disc-type worktable, an integrated gantry beam, a slide plate, a ram, a spindle box, Drive device one, drive device two, drive device three, drive device four, drive device five, and drive device six;

The base is connected to the integrated gantry beam and fixed on the ground;

The workbench is slidingly connected to the base through a drive device one, and the drive device one controls the movement of the workbench along the guide rail in the Y-axis direction of the base;

The two-dimensional precision numerical control turntable is installed on the upper surface of the workbench;

The disc-type worktable is connected to the two-dimensional precision numerical control turntable through the drive device 4 and the drive device 5, the drive device 4 controls the horizontal rotation of the disc-type worktable around the C axis, and the drive device 5 controls the disc The workbench tilts and rotates around the B axis;

The sliding plate is connected to the integrated gantry beam through the driving device 2, and the driving device 2 controls the movement of the sliding plate along the guide rail in the X-axis direction of the integrated gantry beam;

The ram is slidingly connected to the slide plate through the drive device three, and the drive device three controls the movement of the ram along the guide rail in the Z-axis direction of the slide plate;

The spindle box is moved and installed on the ram through the drive device six, and the drive device six controls the movement of the spindle box along the guide rail in the H-axis direction of the ram;

A high-speed high-precision electric spindle is installed in the spindle box, and a precision drilling mold base is installed at the lower part. The high-speed high-precision electric spindle is connected to a micro-hole drill bit, and the precision drilling mold base is connected to a guide sleeve.

It is further defined that the drive device 1, the drive device 2 and the drive device 3 are all composed of a servo motor and a ball screw pair connected through a coupling; the drive device 4 and the drive device 5 are all servo motors directly connected to each other. Weiwei precision CNC turntable, such a structural design, improves the control accuracy through the control mode of the servo motor and the ball screw pair, and the direct drive of the servo motor has the advantages of stable transmission and quietness.

Further defined, the driving device six is composed of a rotary handle, a gear shaft, a scroll spring and a rack, the rotary handle is connected to the gear shaft, the other end of the gear shaft is connected to the scroll spring, and the rack is installed and fixed on the main shaft On the box, with such a structural design, the gear shaft is driven by manually turning the rotary handle downward, and the gear shaft drives the spindle box, high-speed and high-precision electric spindle, precision drilling base, guide sleeve and micro-hole drill bit to move downward through meshing with the rack. , loosen the rotary handle, the volute spring will rebound and reset the spindle box, high-speed high-precision electric spindle, precision drilling base, guide sleeve and micro-hole drill bit by its own elastic force, which will play a leveling role and make the operation easier.

It is further defined that the integrated gantry beam is provided with uprights for support and beams connected between the uprights. Such a structural design integrates the uprights and beams into an integrated design, effectively enhancing the stability and rigidity of the whole machine.

It is further defined to include an electrical box and an operating station. With such a structural design, various electrical control switches and components are installed through the electrical box to operate through the operating station.

Beneficial effects of the present invention: the structure of the whole machine is reasonable, the quality is stable and reliable, and the concept is ingenious. It adopts three linear axes and two rotating axes for precise positioning, which can meet the requirements of drilling at any angle. It adopts flexible manual feed axis, single axis movement, automatic Spring back reset, flexible and convenient operation, matched with precision drilling base and guide sleeve, especially for the processing of micro, thin and small holes in non-orthogonal planes, which effectively improves the drilling accuracy and improves the phenomenon that the drill bit is easy to break.

Description of drawings

The invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

1 is a schematic diagram of the external structure of an embodiment of a 3+2+1 type gantry-type micro-hole drilling center of the present invention;

Fig. 2 is a schematic diagram of the position of each driving device in the embodiment of a 3+2+1 type gantry-type micro-hole drilling center according to the present invention;

Fig. 3 is a schematic structural view of the driving device 6 in the embodiment of the 3+2+1 type gantry-type micro-hole drilling center of the present invention;

The main component symbols are explained as follows:

1. Base; 2. Workbench; 3. Integrated gantry beam; 4. Skateboard; 5. Ram; 6. Headstock; 7. Precision drilling base; 8. Two-dimensional precision CNC turntable; 9. Electrical box; 10. Operation station; 11. Rotary handle; 12. Gear shaft; 13. Scroll spring; 14. Rack; 15. High-speed and high-precision electric spindle; 16. Guide sleeve.

Detailed ways

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1-3, a 3+2+1 type gantry-type micro-hole drilling center of the present invention includes a base 1, a workbench 2, and a two-dimensional precision CNC turntable 8 equipped with a disc-type workbench. , One-piece gantry beam 3, slide plate 4, ram 5, headstock 6, driving device 1, driving device 2, driving device 3, driving device 4, driving device 5 and driving device 6;

The base 1 is connected to the integrated gantry beam 3 and fixed on the ground;

The workbench 2 is slidingly connected to the base 1 through the drive device 1, and the drive device 1 controls the movement of the workbench 2 along the guide rail of the Y-axis direction of the base 1;

The two-dimensional precision CNC turntable 8 is installed on the upper surface of the workbench 2;

The disc-type worktable is connected to the two-dimensional precision numerical control turntable 8 through drive device 4 and drive device 5. Drive device 4 controls the disc-type worktable to rotate horizontally around the C axis, and drive device 5 controls the disc-type worktable to rotate around the B axis. Axis tilt rotation;

The sliding plate 4 is connected to the integrated gantry beam 3 through the driving device 2, and the driving device 2 controls the movement of the sliding plate 4 along the guide rail of the X-axis direction of the integrated gantry beam 3;

The ram 5 is slidingly connected with the slide plate 4 through the driving device 3, and the driving device 3 controls the movement of the ram 5 along the guide rail in the Z-axis direction of the slide plate 4;

The spindle box 6 is moved and installed on the ram 5 through the driving device 6, and the driving device 6 controls the movement of the spindle box 6 along the guide rail in the H-axis direction of the ram 5;

High-speed high-precision electric main shaft 15 is installed in the main shaft box 6, and the precision drilling base 7 is installed in the bottom, and the high-speed high-precision electric main shaft connects the micro-hole drill bit, and the precision drilling base 7 connects guide sleeve 16.

In this example,

The workbench 2, the slide plate 4 and the ram 5 are respectively controlled by the driving device 1, the driving device 2 and the driving device 3 to form a total of three degrees of freedom of motion in the Y-axis, X-axis and Z-axis;

The disc-type worktable and the two-dimensional precision numerical control turntable 8 are connected through the drive device 4 and the drive device 5 to form a total of two degrees of freedom of movement around the C-axis horizontal rotation and around the B-axis tilted rotation;

The spindle box 6 is moved and installed on the ram 5 through the driving device 6 to form a degree of freedom along the H-axis direction;

The above 3+2+1 degree of freedom mode effectively improves the processing range, processing capacity and drilling accuracy of the micro-hole drill on the high-speed high-precision electric spindle 15 for micro, fine, and small holes in non-orthogonal planes. And because of the high degree of freedom, it can achieve fast and accurate positioning and improve the phenomenon that the drill bit is easy to break (because the workpiece posture can be effectively adjusted to fit the drill bit, and the processing resistance caused by incorrect drilling posture can be reduced), and finally the fixation can be completed efficiently. The workpiece on the two-dimensional precision numerical control turntable 8 carries out the operation of drilling.

Preferably, the driving device one, the driving device two and the driving device three are all connected by a servo motor and a ball screw pair through a shaft coupling; the driving device four and the driving device five are servo motors directly connected to the two-dimensional precision numerical control turntable 8, so The structural design improves the control accuracy through the control mode of the servo motor and the ball screw pair, and the direct drive of the servo motor has the advantages of stable transmission and quietness. In fact, other structural shapes of the driving device 1, the driving device 2, the driving device 3, the driving device 4 and the driving device 5 can also be specifically considered according to specific conditions.

Preferably, the driving device 6 is composed of a rotary handle 11, a gear shaft 12, a scroll spring 13 and a rack 14, the rotary handle 11 is connected to the gear shaft 12, the other end of the gear shaft 12 is connected to the scroll spring 13, and the rack 14 is installed and fixed on the main shaft On box 6, with such a structural design, the gear shaft 12 is driven by manually turning the rotary handle 11 downward, and the gear shaft 12 drives the spindle box 6, the high-speed high-precision electric spindle 15, the precision drilling base 7, and the guide shaft by meshing with the rack 14. The sleeve 16 and the micro-hole drill move down, and the rotary handle 11 is released, and the scroll spring 13 rebounds the spindle box 6, the high-speed high-precision electric spindle 15, the precision drilling base 7, the guide sleeve 16 and the micro-hole drill by its own elastic force. Reset, play a leveling role, the operation is more convenient. In fact, other structural shapes of the driving device 6 can also be specifically considered according to specific conditions.

Preferably, the integrated gantry beam 3 is provided with uprights for support and beams connected between the uprights. Such a structural design integrates the uprights and beams into an integrated design, effectively enhancing the stability and rigidity of the whole machine. In fact, other structural shapes of the integrated gantry crossbeam 3 can also be specifically considered according to specific conditions.

Preferably, an electrical box 9 and an operating station 10 are also included. With such a structural design, various electrical control switches and components are installed through the electrical box 9 and operated through the operating station 10 . In fact, other structural shapes for the integration of electrical components and control can also be considered according to specific situations.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (5)

1. A 3+2+1 type gantry-type micro-hole drilling center, characterized in that it includes a base (1), a workbench (2), and a two-dimensional precision numerical control turntable (8 ), one-piece gantry beam (3), slide plate (4), ram (5), headstock (6), drive unit 1, drive unit 2, drive unit 3, drive unit 4, drive unit 5 and drive unit 6 ; The base (1) is connected to the integrated gantry beam (3) and fixed on the ground; The worktable (2) is slidably connected to the base (1) through a driving device, and the driving device controls the movement of the worktable (2) along the guide rail in the Y-axis direction of the base (1); The two-dimensional precision numerical control turntable (8) is installed on the upper surface of the workbench (2); The disc-type workbench is connected to the two-dimensional precision numerical control turntable (8) through the drive device four and the drive device five, the drive device four controls the disc-type workbench to rotate horizontally around the C axis, and the drive device five Control the tilting rotation of the disc table around the B axis; The slide plate (4) is connected with the integrated gantry beam (3) through the drive device two, and the drive device two controls the slide plate (4) to move along the guide rail in the X-axis direction of the integrated gantry beam (3); The ram (5) is slidingly connected with the slide plate (4) through the drive device three, and the drive device three controls the movement of the ram (5) along the guide rail in the Z-axis direction of the slide plate (4); The spindle box (6) is moved and installed on the ram (5) by the driving device six, and the driving device six controls the guide rail movement of the spindle box (6) along the H-axis direction of the ram (5); The high-speed high-precision electric spindle (15) is installed in the spindle box (6), and the precision drilling base (7) is installed at the bottom, the high-speed high-precision electric spindle is connected to the micro-hole drill bit, and the precision drilling base (7) Guide sleeve (16). 2. A 3+2+1 type gantry-type micro-hole drilling center according to claim 1, characterized in that: said driving device 1, driving device 2 and driving device 3 are all composed of servo motors and ball wires The pair of bars is connected by a shaft coupling; the fourth driving device and the fifth driving device are servo motors directly connected to a two-dimensional precision numerical control turntable (8). 3. A 3+2+1 type gantry-type micro-hole drilling center according to claim 2, characterized in that: the driving device consists of a rotary handle (11), a gear shaft (12), a scroll Spring (13) and rack (14) constitute, and described rotary handle (11) is connected gear shaft (12), and the other end of described gear shaft (12) is connected scroll spring (13), and described rack (14) Install and fix on the headstock (6). 4. A 3+2+1 gantry-type micro-hole drilling center according to claim 3, characterized in that: the integrated gantry beam (3) is provided with columns for support and connected between the columns beams between. 5. A 3+2+1 gantry-type micro-hole drilling center according to claim 1, characterized in that it also includes an electrical box (9) and an operation station (10).

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