CN207057647U - The safety-type scroll chuck of numerically controlled lathe - Google Patents

Abstract

The utility model discloses a kind of numerically controlled lathe with safety-type scroll chuck, including chuck body, the chuck body is assemblied in the output end of spindle of numerical control lathe, the chuck body is provided with the spanner connector that can connect spanner, the scroll chuck has safety system, the safety system is mainly made up of trigger mechanism and conductive ring, the driving hole that the trigger mechanism is corresponded on spanner connector is arranged radially on spanner connector, the trigger mechanism is mainly by that can extend into the insulating guide rod in driving hole, the base being fixed on spanner connector and the back-moving spring composition being between insulating guide rod and base, fixed contact head is disposed with insulation system on the spanner connector of the insulating guide rod both sides, and movable contact head that is corresponding and coordinating fixed contact head is disposed with the insulating guide rod.

Description

The safety-type scroll chuck of numerically controlled lathe

Technical field

It the utility model is related to Digit Control Machine Tool scroll chuck field, the safety-type three-jaw card of specifically a kind of numerically controlled lathe Disk.

Background technology

Chuck handle is lathe equipment the most frequently used in mechanical processing process, by the way that chuck handle head is inserted into spanner Hole adjusts clamping and release of the chuck to workpiece, when using chuck handle that parts fixation is good after, often because anxiety or Person's carelessness forgets chuck handle to be removed from the driving hole of chuck, and instruction is machined particularly with beginner or student Often occur when practicing, when starting lathe, spanner is easily thrown out of under the influence of centrifugal force, it is easy to chuck handle occurs and hits Hinder the situation of machine tool guideway and the finger of turner, or even the beginner having or student hold chuck handle and just start lathe, and Cause the damage of personnel and equipment.

The content of the invention

Goal of the invention of the present utility model is：For above-mentioned the deficiencies in the prior art, there is provided one kind can effectively prevent because Chuck handle is forgotten to remove and causes the safety-type scroll chuck of the numerically controlled lathe of security incident.

Technical scheme is used by the utility model：A kind of numerically controlled lathe safety-type scroll chuck, including chuck body, The chuck body is assemblied in the output end of spindle of numerical control lathe, and the chuck body is provided with the spanner connection that can connect spanner Body, the scroll chuck have safety system, and the safety system is mainly made up of trigger mechanism and conductive ring, institute State the driving hole that trigger mechanism is corresponded on spanner connector to be arranged radially on spanner connector, the trigger mechanism is mainly by energy The insulating guide rod that enough extends into driving hole, the base being fixed on spanner connector and it is between insulating guide rod and base Back-moving spring forms, and is disposed with fixed contact head and described with insulation system on the spanner connector of the insulating guide rod both sides Movable contact head that is corresponding and coordinating fixed contact head is disposed with insulating guide rod, the conductive ring is assemblied in insulation system to be pulled The outside of hand connector, the conductive ring is connected by two conduction brush with the fixation contact head on spanner connector, described to lead Electric circle is connected between relay by wire（KA1）Normally-closed contact on, the auxiliary reclay（KA1）Normally opened contact string It is associated on the spindle control circuit in main spindle box, the auxiliary reclay（KA1）Normally-closed contact open when spindle control circuit Disconnect.

Further, the safety system also has conductive switching mechanism, and the conductive switching mechanism is mainly by One conduction brush, changeover panel, the second conduction brush and tray deck composition, the changeover panel is fixed on main shaft, with shaft motion, described Tray deck is arranged on main shaft, relative main remains stationary, and the both side surface of the changeover panel is distinguished by the first contact screw The first conductive plate and the second conductive plate are connected with, one end of first conduction brush is connected between relay（KA1）It is normally closed On contact, the first conductive plate of the other end and the side surface of changeover panel one be engaged, one end of second conduction brush passes through Two contact screws are fixed on tray deck, the second conductive plate of the other end and another side surface of changeover panel is engaged, the branch Frame disk is connected by the second contact screw with the wire on conductive ring.

Further, the insulating guide rod front end of the trigger mechanism is connected with briquetting, and the front end of the briquetting is resetting bullet It can be extended into the driving hole on spanner connector in the presence of spring.

Further, the base of the trigger mechanism is provided with guide groove, after the back-moving spring and insulating guide rod End is arranged in the guide groove of base.

Further, the inner surface of the conductive ring is provided with interior insulation cushion rubber, outer surface is provided with external insulation cushion rubber, institute State the outside that conductive ring is assemblied in spanner connector by interior insulation cushion rubber.

Further, upper two conduction brush of the conductive ring respectively by wire with it is corresponding on spanner connector Fixed contact head connection.

The beneficial effects of the utility model are：The safety-type scroll chuck of numerically controlled lathe described in the utility model, passes through Setting safety system, which effectively solves to forget to remove because of chuck handle, on the original structure of numerically controlled lathe causes spanner The problem of causing personnel and equipment damage is thrown out of, the safety system is passed through by the trigger mechanism being arranged on scroll chuck Wire is connected with the conductive switching mechanism on main shaft, passes through the fixation contact head of trigger mechanism and disconnection and the company of movable contact head The purpose for reaching control spindle return is fetched, it is safe.

Brief description of the drawings

The utility model is further described below in conjunction with the accompanying drawings.

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

Fig. 2 is the partial enlarged drawing of conductive switching mechanism in Fig. 1.

Fig. 3 is the structural representation in three-jaw chuck spanner hole in Fig. 1.

Fig. 4 is the partial enlarged drawing of trigger mechanism in Fig. 3.

Code name implication in figure：1-chuck body；2-tray deck；3-changeover panel；4-the first conduction brush；5-the first is conductive Disk；6-the first contact screw；7-the second conduction brush；8-the second contact screw；9-wire；10-external insulation cushion rubber；11— Conductive ring；12-interior insulation cushion rubber；13-the three conduction brush；14-the four conduction brush；15-fix contact head；16-activity connects Contact；17-briquetting；18-insulating guide rod；19-spanner connector；20-back-moving spring；21-driving hole；22-main shaft； 23-base；24-main spindle box；25-the second conductive plate.

Embodiment

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4：The utility model is numerically controlled lathe safety-type scroll chuck, including chuck body 1, chuck body 1 is assemblied in the output end of spindle of numerical control lathe 22, and chuck body 1 is provided with the spanner connector 19 that can connect spanner And safety system, trigger mechanism that safety system includes being arranged on scroll chuck, conductive ring 11 and it is arranged on master Conductive switching mechanism on axle.

Wherein, trigger mechanism has 3, is arranged on scroll chuck, and each trigger mechanism is corresponded on spanner connector 19 Driving hole 21, and be arranged radially on spanner connector 19, trigger mechanism mainly by insulating guide rod 18, base 23 and resets bullet Spring 20, insulating guide rod 18 can be extended into driving hole 21, with insulation system on the spanner connector 19 of the both sides of insulating guide rod 18 It is disposed with and movable contact head 16 that is corresponding and coordinating fixed contact head 15 is disposed with fixed contact head 15 and insulating guide rod 18, The front end of insulating guide rod 18 is connected with briquetting 17, and the front end of briquetting 17 can extend into spanner company in the presence of back-moving spring 20 In driving hole 21 on junctor 19；Base 23 is fixed on spanner connector 19, and base 23 is provided with guide groove, back-moving spring 20 It is arranged in the rear end of insulating guide rod 18 in the guide groove of base 23；Back-moving spring 20 be in insulating guide rod 18 and base 23 it Between.

Conductive ring 11 is assemblied in the outside of spanner connector 19 with insulation system, and conductive ring 11 is distinguished by two conduction brush It is connected by wire with the fixation contact head 15 on spanner connector 19, two conduction brush are respectively the 3rd conduction brush 13 and the 4th Conduction brush 14, conductive ring 11 are connected between relay by wire 9（KA1）Normally-closed contact on, auxiliary reclay（KA1）'s Normally opened contact is connected on the spindle control circuit in main spindle box 24, auxiliary reclay（KA1）Normally-closed contact open when main shaft Control loop disconnects, and the inner surface of conductive ring 11 is provided with external insulation cushion rubber 10 provided with interior insulation cushion rubber 12, outer surface, described Conductive ring 11 is assemblied in the outside of spanner connector 19 by interior insulation cushion rubber 12.

Conductive switching mechanism is mainly made up of the first conduction brush 4, changeover panel 3, the second conduction brush 7 and tray deck 2, changeover panel 3 are fixed on main shaft 22, are acted with main shaft 22, and tray deck 2 is arranged on main shaft 22, the remains stationary of relative main 22, described turn The both side surface of removable disk 3 is connected to the first conductive plate 5 and the second conductive plate 25 by the first contact screw 6, and first is conductive One end of brush 4 is connected between relay（KA1）Normally-closed contact on, it is the first of the other end and the side surface of changeover panel 3 one conductive Disk 5 is engaged, and one end of the second conduction brush 7 is fixed on tray deck 2 by the second contact screw 8, the other end and changeover panel 3 Second conductive plate 25 of another side surface is engaged, and tray deck 2 passes through the second contact screw 8 and the wire 9 on conductive ring 11 Connection.

Above-mentioned concrete technical scheme is only to illustrate the utility model, rather than its limitations.Although with reference to above-mentioned specific skill The utility model is described in detail art scheme, it will be understood by those within the art that：It still can be right Above-mentioned concrete technical scheme is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed or replaced Change, the essence of appropriate technical solution is departed from the spirit and scope of technical solutions of the utility model.

Claims (6)

1. a kind of numerically controlled lathe safety-type scroll chuck, including chuck body（1）, the chuck body（1）It is assemblied in numerically controlled lathe Main shaft（22）Output end, the chuck body（1）The spanner connector of spanner can be connected by being provided with（19）, it is characterised in that： The scroll chuck has safety system, and the safety system is mainly by trigger mechanism and conductive ring（11）Composition, The trigger mechanism corresponds to spanner connector（19）On driving hole（21）It is arranged radially at spanner connector（19）On, it is described to touch Mechanism is sent out mainly by driving hole can be extended into（21）Interior insulating guide rod（18）, be fixed on spanner connector（19）On base （23）Be in insulating guide rod（18）With base（23）Between back-moving spring（20）Composition, the insulating guide rod（18）Both sides Spanner connector（19）On fixed contact head is disposed with insulation system（15）And the insulating guide rod（18）On be disposed with correspondingly And coordinate fixed contact head（15）Movable contact head（16）, the conductive ring（11）Spanner connector is assemblied in insulation system （19）Outside, the conductive ring（11）Pass through two conduction brush and spanner connector（19）On fixation contact head（15）Even Connect, the conductive ring（11）Pass through wire（9）It is connected between relay（KA1）Normally-closed contact on, the auxiliary reclay （KA1）Normally opened contact be connected on main spindle box（24）On interior spindle control circuit, the auxiliary reclay（KA1）It is normally closed touch Spindle control circuit disconnects when point is opened.

2. the safety-type scroll chuck of numerically controlled lathe according to claim 1, it is characterised in that：The safety system is also With conductive switching mechanism, the conductive switching mechanism is mainly by the first conduction brush（4）, changeover panel（3）, the second conduction brush（7） And tray deck（2）Composition, the changeover panel（3）It is fixed on main shaft（22）Above, with main shaft（22）Action, the tray deck（2）Peace Mounted in main shaft（22）Upper, relative main（22）Remains stationary, the changeover panel（3）Both side surface pass through the first contact screw （6）It is connected to the first conductive plate（5）With the second conductive plate（25）, first conduction brush（4）One end be connected between Relay（KA1）Normally-closed contact on, the other end and changeover panel（3）First conductive plate of one side surface（5）It is engaged, it is described Second conduction brush（7）One end pass through the second contact screw（8）It is fixed on tray deck（2）The upper, other end and changeover panel（3）It is another Second conductive plate of side surface（25）It is engaged, the tray deck（2）Pass through the second contact screw（8）With conductive ring（11）On Wire（9）Connection.

3. the safety-type scroll chuck of numerically controlled lathe according to claim 1, it is characterised in that：The insulation of the trigger mechanism Guide rod（18）Front end is connected with briquetting（17）, the briquetting（17）Front end in back-moving spring（20）In the presence of can extend into Spanner connector（19）On driving hole（21）It is interior.

4. according to the numerically controlled lathe of claim 1 or 3 with safety-type scroll chuck, it is characterised in that：The trigger mechanism Base（23）It is provided with guide groove, the back-moving spring（20）And insulating guide rod（18）Rear end be arranged in base（23）Guiding In groove.

5. the safety-type scroll chuck of numerically controlled lathe according to claim 1 or claim 2, it is characterised in that：The conductive ring（11） Inner surface be provided with interior insulation cushion rubber（12）, outer surface be provided with external insulation cushion rubber（10）, the conductive ring（11）By interior Insulate cushion rubber（12）It is assemblied in spanner connector（19）Outside.

6. the safety-type scroll chuck of numerically controlled lathe according to claim 1 or claim 2, it is characterised in that：The conductive ring（11） Upper two conduction brush pass through wire and spanner connector respectively（19）On corresponding fixed contact head（15）Connection.