CN201848570U

CN201848570U - Feeding mechanism for multi-bit numerical control drilling machine

Info

Publication number: CN201848570U
Application number: CN2010205937855U
Authority: CN
Inventors: 林哲然
Original assignee: 林颖
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-06-01
Anticipated expiration: 2020-11-05

Abstract

The utility model discloses a feeding mechanism for a multi-bit numerical control drilling machine. The feeding mechanism comprises an elevating motor, a gear and a rack, wherein an output shaft of the elevating motor is fixedly connected with the gear; and the gear is meshed with the rack. The rack is fixedly connected with a main shaft jacket of a drill bit mechanism. The feeding mechanism is independent of a tool changing mechanism of the multi-bit numerical control drilling machine and the drill bit mechanism, is clear and simple in structure, is easy to maintain and is uniformly controlled by a numerical control system, so as to increase the operation flexibility, improve the production efficiency and reduce the cost. The feeding mechanism has the advantages of high production efficiency, high processing precision, low cost, low labor intensity, compact and simple structure and reasonable design and can be widely applied to the field of machining.

Description

The feed mechanism of multi-head numerical control drilling machine

Technical field

The utility model relates to a kind of feed mechanism of multi-head numerical control drilling machine, is specifically related to a kind of feed mechanism of multi-head numerical control drilling machine.

Background technology

Drilling machine is widely used in modern industry, is common machining equipment, is used for technologies such as boring and tapping more, is divided into common driller and numerical control drilling machine two classes.In modern mechanical processing, often require to finish continuously twice and even the above operation of twice in boring, reaming, spot-facing, fraising and the tapping of workpiece, with precision such as the shape that improves workpiece hole, size, positions, reduce loading and unloading and location number of times simultaneously, enhance productivity.

Though single drill bit drilling machine of common driller is simple to operate, need constantly more bit change, exist shortcomings such as difficult location, machining accuracy and efficient are low; Though the operating efficiency of file leader's drilling machine increases, required precision still can't be satisfied.Numerical control drilling machine has accurate positioning, machining accuracy and efficient advantages of higher, but because of its complex structure, cost an arm and a leg, maintain inconvenience, make a lot of medium-sized and small enterprises be difficult to accept.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of feed mechanism of multi-head numerical control drilling machine, and it can overcome existing many bit drills of numerical control bed structure complexity, cost an arm and a leg, maintains the defective of inconvenience.

For solving the problems of the technologies described above, the technical solution of the feed mechanism of the utility model multi-head numerical control drilling machine is:

Comprise lifting motor, gear, tooth bar, the output shaft of lifting motor is fixedlyed connected with gear, and wheel and rack is meshed.

Described tooth bar is fixedlyed connected with the spindle jacket of drill bit mechanism.

The technique effect that the utility model can reach is:

The cutter-exchange mechanism of the utility model and multi-head numerical control drilling machine, drill bit mechanism are separate, and clear in structure is succinct, be easy to safeguard, and by the unified control of digital control system, can increase operating flexibility, enhance productivity, and reduce cost.

The utility model not only production efficiency height, machining accuracy height, cheap, can reduce labour intensity, and compact conformation is simple, reasonable in design, can be widely used in field of machining.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is the structural representation that multi-head numerical control drilling machine of the present utility model is installed;

Fig. 2 is the schematic diagram of cutter-exchange mechanism of the present utility model;

Fig. 3 is the schematic diagram of the gearbox internal structure of multi-head numerical control drilling machine;

Fig. 4 is the splined shaft of multi-head numerical control drilling machine and the transmission schematic diagram of gearbox.

Description of reference numerals among the figure:

1 is base, and 2 is disk,

3 is air-actuated jaw, and 4 is splined shaft,

5 is gear, and 6 is lifting motor,

7 is spindle jacket, and 9 is tooth bar,

12 is gearbox, and 13 is servomotor,

14 is speed and the controlled servomotor of angle, and 15 is bracing frame,

17 is shaft coupling, and 19 is manipulator,

20 is cutter chuck, and 21 is the cutter drill bit,

22 is column, and 26 is output gear,

25 are the input gear.

The specific embodiment

The feed mechanism of the utility model multi-head numerical control drilling machine is used for multi-head numerical control drilling machine as shown in Figure 1.

The multi-head numerical control drilling machine comprises base 1, cutter-exchange mechanism, drill bit mechanism, feed mechanism, and base 1 is provided with workbench, is set with column 22 on the base 1, and column 22 tops are provided with cutter-exchange mechanism; Be set with bracing frame 15 on the base 1, bracing frame 15 is fixedlyed connected with base 1 by bolt; Bracing frame 15 is provided with drill bit mechanism, drill bit mechanism connects feed mechanism, the spindle jacket 7 that feed mechanism drives drill bit mechanism vertically moves, and makes air-actuated jaw 3(air-actuated jaw 3 by cutter chuck 20 clamping cutter drill bits 21) can vertically move; The control end of cutter-exchange mechanism, drill bit mechanism, feed mechanism all is connected with the signal output part of digital control system.

As shown in Figure 2, cutter-exchange mechanism comprises the controlled servomotor 14 of disk 2, manipulator 19, cutter chuck 20, speed and angle, being provided with on the disk 2 shown in a plurality of manipulator 19(Fig. 2 is four manipulators), a plurality of manipulators 19 are with respect to disk 2 circumference uniform distributions, and manipulator 19 clampings have cutter chuck 20; Cutter drill bit 21 is housed on the cutter chuck 20; Disk 2 is by shaft coupling 17 connection speeds and the controlled servomotor 14 of angle; Manipulator 19 is connected with the signal output part of digital control system.

The disk 2 of cutter-exchange mechanism is supported on the base 1 by column 22.

Manipulator 19, cutter chuck 20 are identical with the number of cutter drill bit 21, i.e. each cutter chuck 20 manipulator 19 of configuration and cutter drill bit 21.

The controlled servomotor 14 of speed and angle is arranged on the bracing frame 15 by bolting;

The controlled servomotor 14 of speed and angle drives disk 2 by shaft coupling 17 and rotates with respect to base 1, fixedly turn an angle (when manipulator 19 is four rotate 90 degree) at every turn, make the cutter chuck 20 of manipulator 19 clampings rotate to the corresponding position of the air-actuated jaw 3 of drill bit mechanism.

Drill bit mechanism comprises servomotor 13, gearbox 12, spindle jacket 7, splined shaft 4, air-actuated jaw 3, as shown in Figure 3, is provided with intermeshing output gear 26, input gear 25 in the gearbox 12, and the input gear 25 of gearbox 12 connects servomotor 13; Gearbox 12 is fixedlyed connected with bracing frame 15 by bolt; Splined shaft 4 comprises spline segment, optical axis section, and the output gear 26 of gearbox 12 is meshed with the spline segment of splined shaft 4, and the optical axis section of splined shaft 4 is arranged in the spindle jacket 7 by bearing fixing; The optical axis Duan Yiduan of splined shaft 4 (being the output of splined shaft 4) connects air-actuated jaw 3, as shown in Figure 4; Air-actuated jaw 3 is positioned on the same axis with the cutter chuck 20 of correspondence position, makes air-actuated jaw 3 can lock the cutter chuck 20 of clamping correspondence position, thereby realizes the clamping to required cutter drill bit 21;

Servomotor 13 reaches cutter chuck 20 by gearbox 12, splined shaft 4, air-actuated jaw 3 with power.

Feed mechanism comprises lifting motor 6, gear 5, tooth bar 9, and the output shaft of lifting motor 6 is fixedlyed connected with gear 5 by key, and tooth bar 9 is fixedly set on the spindle jacket 7 of drill bit mechanism, and gear 5 is meshed with tooth bar 9;

Lifting motor 6 is arranged at the bottom of gearbox 12 by bolting;

The control end that speed and the controlled servomotor 14(of angle are cutter-exchange mechanism), servomotor 13(is the control end of drill bit mechanism), lifting motor 6(is the control end of feed mechanism) all be connected with the signal output part of digital control system.

The course of work of the present utility model is as follows:

Workpiece is positioned on the workbench of base 1, digital control system drives lifting motor 6, lifting motor 6 driven wheels 5 rotate, the rotation of gear 5 drives the tooth bar 9 that is engaged with and moves down, and drive spindle jacket 7 simultaneously and be arranged at splined shaft 4 moving linearlies in the spindle jacket 7, thereby make the first operation cutter drill bit 21 that is fixed in splined shaft 4 outputs obtain the motion of vertical directions;

When the first operation cutter drill bit 21 drops to the original position of processing work along with splined shaft 4, digital control system drives servomotor 13, servomotor 13 drives splined shaft 4 by the output gear in the gearbox 12 26 and rotates, the rotation of splined shaft 4 drives the first operation cutter drill bit 21 of splined shaft 4 outputs, make it by setting the rotating speed rotation, finish main motion, promptly begin the workpiece processing of holing;

Behind hole arrival desired depth, digital control system reverse drive lifting motor 6, lifting motor 6 drives splined shafts 4 and is moved upward to the tool changing height, stops the work of servomotor 13 simultaneously, and the first operation cutter drill bit 21 stops operating; Digital control system control manipulator 19 makes manipulator 19 clamp the first operation cutter chuck 20, and the air-actuated jaw 3 of drill bit mechanism discharges the first operation cutter chuck 20 simultaneously; Digital control system drives lifting motor 6, drives splined shaft 4 and moves up, and breaks away from cutter chuck 20 fully until air-actuated jaw 3, makes the clamping of splined shaft 4 outputs release to the first operation cutter drill bit 21; The controlled servomotor 14 of digital control system actuating speed and angle, 2 rotations of controlled servomotor 14 driver plates of speed and angle, fixedly turn an angle (as 90 degree) at every turn, make the second operation cutter chuck 20 on the disk 2 navigate to the concentric position (being the correspondence position of the air-actuated jaw 3 of drill bit mechanism) of splined shaft 4; Digital control system drives lifting motor 6, lifting motor 6 drives splined shaft 4 and moves down, make air-actuated jaw 3 clamp the second operation cutter chuck 20, the manipulator 19 of the second operation cutter chuck, 20 correspondences discharges cutter chuck 20 simultaneously, make splined shaft 4 outputs clamp the second operation cutter drill bit 21, finish tool changing;

Digital control system drives lifting motor 6 once more, the processing of beginning second operation work.

After all process steps of workpiece is finished, make splined shaft 4 rise to elemental height, all motors quit work, and promptly finish the processing of workpiece multiple working procedure.

Claims

1. the feed mechanism of a multi-head numerical control drilling machine, it is characterized in that: comprise lifting motor (6), gear (5), tooth bar (9), the output shaft of lifting motor (6) is fixedlyed connected with gear (5), and gear (5) is meshed with tooth bar (9).

2. the feed mechanism of multi-head numerical control drilling machine according to claim 1 is characterized in that: described tooth bar (9) is fixedlyed connected with the spindle jacket (7) of drill bit mechanism.