CN103019298A

CN103019298A - Simulative handle for numerical control bench drill

Info

Publication number: CN103019298A
Application number: CN2012105632047A
Authority: CN
Inventors: 庄进
Original assignee: FUZHOU GONGDA TAIZUAN Co Ltd
Current assignee: FUZHOU GONGDA TAIZUAN Co Ltd
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2013-04-03
Anticipated expiration: 2032-12-21
Also published as: CN103019298B

Abstract

The invention relates to a simulative handle for a numerical control bench drill. The simulative handle comprises a holder, an electromagnetic damping disk, a rotary encoder, and handles provided with a rotary shaft. The holder is provided with a flange and a tube. The flange is fixed on a bench drill. The rotary shaft is positioned on the flange through a bearing. The electromagnetic damping disk and the rotary encoder are disposed in the tube and are respectively linked to the rotary shaft. The handles are provided with a handle base and are fixed at the end of the rotary shaft through the handle base. The handle base covers an opening of the tube. The rotary encoder is electrically connected with a servo motor and controls action of the servo motor. A current sensor connected to a power input end of the servo motor acquires change of current and is connected to an electromagnetic coil of the electromagnetic damping disk through an amplifier circuit. The simulative handle is capable of controlling action of the servo motor and timely feeding back feed resistance of the bench drill during operation, and helps operators judge magnitude of the feed resistance and regulate feed amount so as to regulate feed speed by hand feel and protect a drill bit from damage.

Description

Numerical control bench drill simulating handle

Technical field:

The invention belongs to the plant equipment field, particularly a kind of numerical control bench drill simulating handle.

Background technology:

Bench drill is weighting platform formula drilling machine also, is widely used in field of machining, can boring on workpiece, the operation such as reaming, fraising and tapping.Manually the structure of bench drill roughly includes base, column, main spindle box, main shaft, rack sleeve, gear shaft and handle etc.Add man-hour, rotate by turning handle driven gear axle, thereby the vertical tooth bar that drives on the rack sleeve with its engagement moves up and down, and finishes F.F., attack, rewind down, and the combination action.Such bench drill not only troublesome poeration, labour intensity is large, and a people can only control a machine, and production efficiency is relatively low, and is especially all the more so to batch machining.For this reason, the digital improvement of common manual bench drill namely becomes inevitable.Existing numerical control bench drill replaces traditional mechanical type feeding handle all with numerical control tank or electric-control board by servomotor, controls the servomotor action by the mode of programming, realizes the target of automated job.By practice for many years, still there is limitation in the numerical control bench drill, and one, bench drill operator are a line skilled worker, and programming is difficult to for the moment incision for them; Two, bench drill is except the manufacturing batch workpiece, the material difference of also processing some nonstandard scattered workpiece, especially these workpiece is large, the processing specification is complicated, although can manually process by the operating key on the CNC Panel, but the resistance in the time of can't judging drilling causes the faults such as drill bit damage.How to merge manual bench drill handle function at the numerical control bench drill, namely become the object of the present invention's research.

Summary of the invention:

The objective of the invention is to design a kind of numerical control bench drill simulating handle with feeding control and resistance feedback.

Technical solution of the present invention is achieved in that a kind of numerical control bench drill simulating handle, it is characterized in that including holder, electromagnetic damping dish, rotary encoder, with the handle of rotating shaft; Holder has a ring flange and a cylindrical shell, is fixed on the bench drill by ring flange, and described rotating shaft is positioned on the ring flange by bearing; Described electromagnetic damping dish and rotary encoder are contained in the cylindrical shell, and link with rotating shaft respectively, with the one handle seat, be fixed on roller end by this handle set on the handle, and lid are located at described cartridge openings place; Described rotary encoder is electrically connected with servomotor, the action of control servomotor; Be connected on the current sensor on the servo motor power supply input end, gather curent change by connecting the solenoid of electromagnetic damping dish behind the amplifying circuit.Simulating handle both can have been controlled the servomotor action, and the feeding damping in the time of also in good time feeding back drilling machine work helps the operation people to judge the feeding drag size and regulate the amount of feeding.Thereby realize that hand feed " has feel ", carry out speed of feed and regulate by the perception of hand, not damaged with the protection drill bit.

Described electromagnetic damping dish comprises solenoid and the magnechuck that is fixed on the holder cylindrical shell, and the dampened disk that is fixed on iron content in the rotating shaft.

Described electromagnetic damping dish refers to magnetic powder brake.

The present invention have be skillfully constructed, reasonable in design, the effective lever operated function of analog mechanical, realize and conventional manual bench drill seamless switching that in good time perception damping situation is carried out speed of feed and regulated by the perception of hand, not damaged with the protection drill bit, be particularly useful for the processing of scattered workpiece; More prior, this simulating handle can cooperate the self-learning function of numerical control tank, by the record of the process chip in numerical control tank simulating handle operating process, then again by numerical control tank control bench drill, repeating manual flow process processes workpiece, thereby reduce the limitation that the numerical control bench drill relies on programming, solve the bottleneck that the numerical control bench drill is popularized.

Description of drawings:

The present invention will be further described below in conjunction with concrete legend:

Fig. 1 simulating handle schematic appearance

Fig. 2 simulating handle diagrammatic cross-section

Fig. 3 simulating handle perspective exploded view

Fig. 4 simulating handle schematic block circuit diagram

Fig. 5 simulating handle is combined schematic diagram with the numerical control bench drill

Wherein

1-holder 11-ring flange 12-cylindrical shell

2-handle 21-handle set 22-shifting block

3-electromagnetic damping dish 31-solenoid 32-magnechuck

33-dampened disk 4-rotary encoder 5-rotating shaft

6-bearing 71-base 72-column

73-main spindle box 74-servomotor

Embodiment:

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, numerical control bench drill simulating handle includes holder 1, handle 2, electromagnetic damping dish 3 and rotary encoder 4; Holder 1 has a ring flange 11 and a cylindrical shell 12, is fixed on the bench drill by ring flange 11; On the handle 2 with one handle seat 21; be fixed on the end of rotating shaft 5 by this handle set 21; the other end of rotating shaft 5 is positioned on the ring flange 11 by bearing 6; so that handle set 21 can cover the opening part that is located at cylindrical shell 12; in electromagnetic damping dish 3 and rotary encoder 4 be encapsulated in; shield, avoid laying dust etc.

Electromagnetic damping dish 3 comprises solenoid 31 and the magnechuck 32 that is fixed on the cylindrical shell 12, and the dampened disk 33 that is fixed on iron content in the rotating shaft 5; Magnechuck 32 is both as the support of solenoid 31, is again the iron core that produces magnetic force, and its magnetic force is directly proportional with electric current in the solenoid 31.During work, the increase of drill thrust, the electric current of servomotor 74 power inputs also can correspondingly increase, the electric current that feeds back to solenoid 31 increases, generation magnetic force strengthens, and the suction-combining force of magnechuck 32 and dampened disk 33 also increases, thereby the resistance of dampened disk 33 rotations is increased, can feed back to the operator from handle 2, simulate the same function of conventional manual bench drill handle.Rotary encoder 4 comprises static outer ring and the inner ring of rotation, the outer ring is installed on the cylindrical shell 12, inner ring and handle set 21 or rotating shaft 5 interlocks, also be that inner ring rotates under shifting block on the handle set 21 22 drives, perhaps be connected with rotating shaft 5 keys to drive the inner ring rotation, the signal that rotary encoder 4 produces passes to servomotor 74, control servomotor 74 forward and backwards, and rotating speed, realize control F.F., rewind down, perhaps the worker such as advances at the action.Described electromagnetic damping dish 3 and rotary encoder 4 are contained in the cylindrical shell 12.Electromagnetic damping dish 3 also can adopt magnetic powder brake, can be used to equally fictitious load.

Such as Fig. 4, the circuit relationships of the electromagnetic damping dish 3 in the simulating handle and rotary encoder 4 and servomotor 74, described rotary encoder 4 is electrically connected with servomotor 74,74 actions of control servomotor; And be connected on current sensor on servomotor 74 power inputs, and gathering curent change by connecting the solenoid 31 of electromagnetic damping dish 3 behind the amplifying circuit, the servo motor power supply electric current increases, and the electric current of solenoid 31 also increases thereupon.For compatible different size drill bit, can reach again corresponding damping amount, in amplifying circuit, be provided with the damping gear selective pan of corresponding drill bit specification, so that simulating handle can adapt to different drill bit specifications.

With reference to Fig. 5, simulating handle and numerical control bench drill structural drawing, the numerical control bench drill includes base 71, column 72, main spindle box 73 and servomotor 74, and simulating handle is installed in the right side of main spindle box 73, so that handle 2 positions are identical with conventional robot handle position, the handled easily person is accustomed to needing of operation.

Claims

1. numerical control bench drill simulating handle is characterized in that including holder, electromagnetic damping dish, rotary encoder, with the handle of rotating shaft; Holder has a ring flange and a cylindrical shell, is fixed on the bench drill by ring flange, and described rotating shaft is positioned on the ring flange by bearing; Described electromagnetic damping dish and rotary encoder are contained in the cylindrical shell, and link with rotating shaft respectively, with the one handle seat, be fixed on roller end by this handle set on the handle, and lid are located at described cartridge openings place; Described rotary encoder is electrically connected with servomotor, the action of control servomotor; Be connected on the current sensor on the servo motor power supply input end, gather curent change by connecting the solenoid of electromagnetic damping dish behind the amplifying circuit.

2. numerical control bench drill simulating handle according to claim 1 is characterized in that the electromagnetic damping dish comprises solenoid and the magnechuck that is fixed on the holder cylindrical shell, and the dampened disk that is fixed on iron content in the rotating shaft.

3. numerical control bench drill simulating handle according to claim 1 is characterized in that the electromagnetic damping dish refers to magnetic powder brake.