CN87211036U

CN87211036U - Muti-function drilling machine

Info

Publication number: CN87211036U
Application number: CN 87211036
Authority: CN
Inventors: 刘湘
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-08-03
Filing date: 1987-08-03
Publication date: 1988-05-11

Abstract

The utility model relates to a drilling machine with the multifunctional operation of drilling, fastening, tapping, etc. The technical character is that the drilling machine is provided with a controller which can adjust the rotation speed and the torque and control the positive rotation, the negative rotation and the shutting-down. The control switch, which controls the positive rotation and the negative rotation of the unit head, is arranged on the handle of a control lever. So the utility model has the advantages of simple structure, convenient operation, good using effect, multifunctional operation, etc.

Description

Muti-function drilling machine

The utility model relates to a kind of bench drill with multi-function operations such as boring, fastening, tapping.

The bench drill that uses generally adopts the cone pulley gear to carry out speed governing at present, and this bench drill is only applicable to the boring of workpiece.In order rationally and to use bench drill economically, people wish to work out multiduty as far as possible bench drill for a long time.For example be used for multi-functional operations such as boring, fastening, tapping.But also still finding no this class bench drill so far comes out, estimate that it has following two main causes: one is to realize that above-mentioned operation need solve the optimum speed and the torque control problem of bench drill, i.e. the disconnected awl protection of the suitable rotational line speed of bench drill unit head and rotary inertia and tapping operation and the tension force control of terminal operation; Though another is to address the above problem, has the cost height and be unfavorable for problem or other reason applied.

The purpose of this utility model is in order to address the above problem, provide a kind of simple and reasonable, cost is low, be convenient to operation, result of use is good, has the bench drill of multi-function operations such as boring, fastening, tapping.

Technical solution of the present utility model is on existing bench drill, to mix the controller that can control motor speed, torque and rotating and parking.Be equipped with in the shell of its controller by power circuit, the synchronous control circuit that constitutes of bridge silicon controlled, the adjuster of half-bridge, reshaper, energy storage separator, trigger, half control, arithmetic unit, bistable trigger, integrator, testing circuit, delayer, discharge circuit.On the shell of controller, be furnished with and the corresponding power switch of control circuit, positive and negative, stop gauge tap, indicator lamp, rotating speed, torque knob, feedback fine setting, moment gauge outfit etc.For simplified structure, reduce cost, the speed change cone pulley that has now on the bench drill can be removed, with motor directly as unit head, to change the original the sort of version that drives the unit head rotation by motor transmission mechanism, for the ease of operation, realize the control of bench drill forward and backward crawl, on the handle of the operating mechanism of controlling the support lifting, miniature point driving switch is housed.

The utility model compared with the prior art, owing to adopted adjustable unit head rotating speed, the controller of torque, cancelled traditional cone pulley speed changing structure, it has not only increased the function of bench drill, and the variation that has produced matter, it can make bench drill carry out infinitely variable speeds zero to the rated speed scope, in the torque control decided at the higher level but not officially announced of 5～200% volume torque range, therefore fastening, boring, when reaching given moment, can stop rapidly in the tapping operation, it has not only improved crudy, and the awl problem is resolved in solution, the dark feedback technique of its governing system, (13 millimeters torque capacitys reach 10 kilograms/meter to make unit head (tens rev/mins) when low speed obtain enough output torques, 6 millimeters reach 3 kilograms/meter) torque control has very high sensitivity and very wide adjusting range (can accurately be controlled M for 13 millimeters ₃～M ₁₂M1～M6 screw torque can be accurately controlled in the torque of screw, 6 millimeters) in addition, because the miniature point driving switch of the positive and negative brill of control bench drill is housed on the handle of control stick, thus made things convenient for operation.Therefore, the utlity model has simple and reasonable, advantages such as cost is low, be convenient to operation, good, the multi-function operation of result of use.

Below in conjunction with accompanying drawing, describe a specific embodiment of the present utility model in detail.

Fig. 1 is a structural representation of the present utility model

Fig. 2 is a controller schematic diagram of the present utility model

Fig. 3 is the circuit block diagram of Fig. 2

Fig. 4 is the circuit diagram of Fig. 2

Referring to Fig. 1, unit head 6 is series excited machines, is fastened with dop 7 by screw on the axostylus axostyle of motor.Its unit head 6 is fixed on the support 15 by holding screw 10 and top board 11, two sliding sleeves 12,19 on the support 15 and be positioned at the round spring 14 between two sliding sleeves and have the locating slide sleeve 18 and columned 9 sliding joining of supporting member of set lever 20.Locating slide sleeve 18 is connected with the control stick 5 that has handle 3 by connecting rod 17, and control stick 5 is fixed on the support 15 by bolt shaft 13.The miniature point driving switch 1,2 of forward and backward is housed in the end of handle 3.The lead of miniature point driving switch 1,2 of forward and backward and motor is connected with the controller 4 that is located at motor top by plug connector.Guide rail 16 on the support 15 is joined with the groove cunning of locating slide sleeve 18 sidepieces.Supporting member 9 is fastened in the jack of base 8 by jackscrew 24.A locating slide sleeve 22 that has spacing screw rod 21 and set lever 23 is arranged in the bottom of supporting member 9.

Referring to Fig. 2: controller is a controller that profile is a rectangle, power switch 26 is housed on the panel of controller housing, positive and negative, stop gauge tap 30 indicator lamps 27, rotating speed,

torque knob

28,29, feedback fine setting 31 and be used to indicate the gauge outfit 25 of moment size, in the housing of controller, be equipped with by resistance R _1～10, diode D _1～7, controllable silicon KP _1～2, triode BG _1～5, capacitor C _1～4, potentiometer (variable resistor) W _1～3, the control circuit of formation (referring to Fig. 4)

When using: connect power supply,, adjust " rotating speed knob " 28 and turn round, on dop 7, load by rule of thumb, adjust " torque knob " 29 and turn round to desirable parking moment with hand to desirable rotating speed with gauge tap 30 indication " just changeing " positions.Gauge tap 30 is pushed off-position, depress handle 3, support 15, overcome round spring 14 elastic force through guide rail 16 and drive unit head 6, along supporting member 9, locating slide sleeve 22, move down perpendicular to base 8, pressing after alignment pieces just changes miniature point driving switch 1, unit head 6, just changes feeding.With the tapping is example, and when the tapping resistance was bored moment near breaking, controller 4 cut off motor powers rapidly, feed-disabling, unclamp the normal inching turning switch after 1 one seconds, controller 4 resets, presses reverse inching turning switch 2, unit head 6 withdraws from several buttons, presses 1 feeding of normal inching turning switch again.Move in circles like this and finish, when carrying out terminal operation, when tightening 6 parkings of a screw unit head, need unclamp the normal inching turning switch and press again after 1, one second, carry out next operation until tapping.

Claims

1, a kind of multifunctional bench drill, include the operating mechanism of motor [6], dop [7], support [15], supporting member [9], base [8] and the lifting of control support [15], it is characterized in that on bench drill, being provided with a controller [4], be by controlling motor speed, the circuit of torque and rotating and parking and power switch [26] gauge tap [30] rotating speed, torque knob [28], [29] are formed.

2, multifunctional bench drill according to claim 1 is characterized in that said circuit is by power supply, synchronously bridge silicon controlled, the adjuster of half-bridge, reshaper, energy storage separator, trigger, half control, arithmetic unit, bistable trigger, integrator, testing circuit, delayer, discharge circuit constitute.

3, multifunctional bench drill according to claim 1 is characterized in that not having on the handlebar of said operating mechanism positive and negative, and turning point moves switch (1), (2).

4, multifunctional bench drill according to claim 1 is characterized in that also not feeding back on the said controller (4) fine setting and gauge outfit.