CN215469794U - Automatic tool setting device of drilling machining center - Google Patents

Abstract

The utility model relates to the technical field of machine tools, in particular to an automatic tool striking device of a drilling machining center, which comprises a stand column and a spindle box, wherein the spindle box is slidably arranged on the stand column, and the stand column is provided with a lifting mechanism for driving the spindle box to lift up and down; the main shaft box is provided with a main shaft assembly fixedly arranged on the main shaft box, a knife striking rod capable of rotating relative to the main shaft box and a return spring, one end of the return spring is fixedly connected with the main shaft box, the other end of the return spring is fixedly connected with the knife striking rod, a pressurizing knife striking mechanism is further arranged in the main shaft box, and the pressurizing knife striking mechanism comprises a telescopic rod capable of moving in a telescopic mode; when the tool is changed, the telescopic rod of the pressurizing tool beating mechanism extends out and drives the tool beating rod to rotate towards the tool beating direction, and the tool beating rod rotates and is matched with the tool beating ring of the main shaft assembly for tool changing. Compared with the prior art, the tool changing device has the advantages of simple structure and low manufacturing cost, and the tool changing work can be carried out at any position of the spindle box by additionally arranging the pressurizing tool beating mechanism.

Description

Automatic tool setting device of drilling machining center

Technical Field

The utility model relates to the technical field of machine tools, in particular to an automatic tool striking device of a drilling machining center.

Background

In the machining process of the numerical control machine tool, in order to meet machining requirements of different procedures, operators need to replace different cutters for machining, and the tool magazine of the numerical control machine tool is used for storing the cutters and realizing automatic tool changing, so that a tool changing mode of manually changing the cutters in the prior art is replaced.

Specific tools are needed to be used for machining specific processes, due to the fact that parts of the specific tools are structurally related, the tools cannot be installed in an original tool magazine of a machine tool, the specific tools interfere with the tool magazine, the weight of the parts of the specific tools exceeds the bearing limit of the tool magazine, the parts of the specific tools cannot be installed in the original tool magazine of the machine tool, and therefore automatic tool changing cannot be achieved. The special tools are generally placed on special tool holders, and manual assistance is adopted for tool changing, so that the risk of injury to operators is easy to occur.

In addition, the current drilling machining center adopts a mechanical tool changing mode, a main shaft can be changed by moving to a specific position, tool changing at any position in the movement direction of the main shaft cannot be realized, if the main shaft needs to be changed at any position in the movement direction of the main shaft, manual tool changing needs to be manually assisted, the operation space is narrow, and the risk of injury of an operator is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic tool setting device of a drilling machining center, which has high safety and unlimited tool changing position, aiming at the defects in the prior art.

The purpose of the utility model is realized by the following technical scheme: the application provides an automatic tool setting device of a drilling machining center, which comprises a stand column and a spindle box, wherein the spindle box is slidably mounted on the stand column, and the stand column is provided with a lifting mechanism for driving the spindle box to lift up and down; the main shaft box is provided with a main shaft assembly fixedly arranged on the main shaft box, a knife striking rod capable of rotating relative to the main shaft box and a return spring, one end of the return spring is fixedly connected with the main shaft box, the other end of the return spring is fixedly connected with the knife striking rod, a pressurizing knife striking mechanism is further arranged in the main shaft box, and the pressurizing knife striking mechanism comprises a telescopic rod capable of moving in a telescopic mode; when the tool is changed, the telescopic rod of the pressurizing tool beating mechanism extends out and drives the tool beating rod to rotate towards the tool beating direction, and the tool beating rod rotates and is matched with the tool beating ring of the main shaft assembly for tool changing.

Wherein, the cutter arbor is L shape structure, and the corner of cutter arbor is equipped with the pivot, and the cutter arbor is articulated through pivot and headstock.

The pressurizing knife beating mechanism is a hydraulic cylinder or a pneumatic cylinder, the pressurizing knife beating mechanism is fixedly installed on the spindle box, and a telescopic rod of the pressurizing knife beating mechanism stretches out and moves towards the bottom of the knife beating rod.

The lifting mechanism comprises a slide rail fixedly mounted on the outer side surface of the stand column, the slide rail is provided with a slide block in sliding fit with the slide rail, the outer side surface of the slide block is fixedly connected with the spindle box, the top end of the stand column is fixedly provided with a motor base, the top end surface of the motor base is fixedly provided with a lifting motor, an output shaft of the lifting motor is fixedly connected with the lead screw body, the lead screw body is sleeved with a lead screw nut, and the lead screw nut is fixedly connected with the spindle box.

Wherein, the motor cabinet is towards the side fixed mounting who beats the cutter arbor and is beaten the blade holder, rotationally installs striking bearing on the blade holder, beats the top of cutter arbor and towards the side fixed mounting who strikes bearing and have the pine sword to bump the piece.

The tool comprises a main spindle box, a butterfly tool magazine, a cutter head and a cutter head, wherein the butterfly tool magazine is provided with the cutter head for loading a plurality of common cutters, and the cutter head is rotatably arranged on the outer side of the main spindle box.

The horizontal moving tool magazine comprises a moving vehicle frame used for loading at least one special tool, and a horizontal moving device used for driving the moving vehicle frame to move along the longitudinal direction or/and the transverse direction is arranged at the bottom of the moving vehicle frame.

The utility model has the beneficial effects that: compared with the prior art, the automatic knife forging device of drilling machining center of this application, its simple structure, the cost of manufacture is low, and through addding pressure boost knife forging mechanism to make the headstock homoenergetic carry out tool changing work in the optional position, artifical manual tool changing is safer, reduces artifical tool changing and bumps the risk, improves lathe product processingquality, improves product competitiveness.

Drawings

The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic structural view of the drilling center of the present embodiment after hiding the horizontally moving tool magazine.

Fig. 2 is a partial sectional view of the drilling center in this embodiment.

Fig. 3 is a schematic structural view of the drilling center of the present embodiment after hiding the lifting mechanism.

Reference numerals: the automatic tool setting machine comprises a stand column 1, a mechanical tool setting mechanism 2, a pressurizing tool setting mechanism 3, a butterfly tool magazine 4, a spindle assembly 5, a spindle box 6, a motor base 7, a lifting motor 8, a tool setting base 9, an impact bearing 10, a spindle motor 11, a tool setting rod 21, a reset spring 22, a loose tool collision block 23, a horizontal moving tool magazine 24, a special tool 25 and a common tool 26.

Detailed Description

The utility model is further described with reference to the following examples.

The utility model relates to an automatic tool striking device of a drilling machining center, which is shown in figures 1 and 2, wherein the drilling machining center comprises an upright post 1 and a spindle box 6, the spindle box 6 is slidably arranged on the upright post 1, and the upright post 1 is provided with a lifting mechanism for driving the spindle box 6 to lift up and down. Specifically, elevating system includes slide rail, slider, motor cabinet 7, elevator motor 8, lead screw body and screw-nut. The slide rail is fixedly installed on the outer side face of the upright post 1, the slide rail is provided with a slide block in sliding fit with the slide rail, the outer side face of the slide block is fixedly connected with the spindle box 6, the top end of the upright post 1 is fixedly provided with a motor base 7, the top end face of the motor base 7 is fixedly provided with a lifting motor 8, an output shaft of the lifting motor 8 is fixedly connected with a lead screw body, the lead screw body is sleeved with a lead screw nut, and the lead screw nut is fixedly connected with the spindle box 6. During operation, the lifting motor 8 works, the output shaft of the lifting motor 8 drives the screw rod body to rotate, the screw rod body rotates to enable the screw rod nut to move along the axial direction of the screw rod body, and the screw rod nut moves to drive the spindle box 6 to do reciprocating lifting motion in the vertical height direction. It should be noted that the lifting mechanism in this embodiment is the same as the conventional lifting mechanism of the machining center, and the specific structure and shape thereof are easy for those skilled in the art to know the working principle thereof.

In the present embodiment, the headstock 6 is provided with the spindle unit 5 and the mechanical unclamping mechanism 2 fixedly mounted on the headstock 6. It should be noted that the mechanical unclamping mechanism 2 and the spindle unit 5 in the present embodiment are the same as the unclamping mechanism and the spindle unit 5 used in the machining center with the butterfly magazine 4 in the related art. Specifically, the mechanical unclamping mechanism 2 includes a unclamping rod 21 and a return spring 22 that can rotate relative to the main spindle box 6, and further, the unclamping rod 21 is an L-shaped structure, a corner of the unclamping rod 21 is provided with a rotating shaft, the unclamping rod 21 is hinged with the main spindle box 6 through the rotating shaft, one end of the return spring 22 is fixedly connected with the main spindle box 6, and the other end of the return spring 22 is fixedly connected with the upper portion of the unclamping rod 21. The spindle assembly 5 comprises a spindle motor 11, a cutter ring and four-jaw claws which are sequentially arranged from top to bottom, the cutter ring is sleeved on the periphery of an output shaft of the spindle motor 11 and is in linkage connection with the four-jaw claws, and during operation, the cutter ring moves downwards and drives the four-jaw claws to open outwards, so that a cutter can enter between the four-jaw claws, the cutter ring moves upwards to return, and the four-jaw claws close inwards, thereby fixing the cutter and realizing the grabbing of the cutter.

In this embodiment, the mechanical unclamping mechanism 2 further includes a unclamping seat 9, an impact bearing 10 and a unclamping bumper 23. The side of motor cabinet 7 towards hitting the cutter arbor 21 is fixed mounting have a knife seat 9, rotationally installs striking bearing 10 on the knife seat 9, and the side of hitting the top of cutter arbor 21 towards striking bearing 10 is fixed mounting have a loose sword and bump piece 23.

When the mechanical unclamping mechanism 2 works, the spindle box 6 rises and moves in the vertical direction, the loose tooling collision block 23 on the unclamping bar 21 generates interference collision with the impact bearing 10 on the unclamping seat 9, so as to drive the unclamping bar 21 to move clockwise in the unclamping direction, the unclamping bar 21 collides with the unclamping ring so as to drive the unclamping ring to move, at the moment, the return spring 22 is in a stretching state, the unclamping ring moves to loosen the four-clack claw of the spindle assembly 5, the spindle box 6 moves downwards again in the vertical direction, the four-clack claw grabs the common cutter 26, in the process of moving downwards the spindle box 6, the loose tooling collision block 23 does not interfere with the impact bearing 10, the return spring 22 in the stretching state drives the unclamping bar 21 to rotate anticlockwise and return by using the elasticity of the return spring 22, so as to complete the action of replacing the common cutter 26 by the mechanical unclamping mechanism 2.

As the improvement, still be equipped with pressure boost unclamping mechanism 3 in the headstock 6, pressure boost unclamping mechanism 3 includes telescopic link of scalable motion, and during the tool changing, the telescopic link of pressure boost unclamping mechanism 3 stretches out and orders about unclamping pole 21 and rotates towards unclamping direction (clockwise), and unclamping pole 21 rotates and cooperates the unclamping ring tool changing of main shaft assembly 5. Specifically, the pressurizing knife beating mechanism 3 can be a hydraulic cylinder or a pneumatic cylinder, as an optimal scheme, the pneumatic cylinder can be adopted, the pneumatic cylinder is high in control precision and rapid in action, and the smoothness and the speed of knife changing are further improved. The pressurizing unclamping mechanism 3 is fixedly mounted on the spindle box 6, and the pressurizing unclamping mechanism 3 can be particularly mounted on the side of the spindle motor 11, so that the position of the pressurizing unclamping mechanism 3 relative to the spindle assembly 5 is completely fixed, the pressurizing unclamping mechanism 3 can move up and down along with the lifting movement of the spindle assembly 5, and the position between the pressurizing unclamping mechanism 3 and the spindle assembly 5 cannot be changed, so that the position of the pressurizing unclamping mechanism 3 does not need to be adjusted for multiple times, and the tool changing action is simplified. In order to more conveniently enable the pressurizing knife striking mechanism 3 to drive the knife striking rod 21 to rotate clockwise, the telescopic rod of the pressurizing knife striking mechanism 3 extends towards the bottom of the knife striking rod 21.

The working process of the pressurizing unclamping mechanism 3 is as follows: the special tool 25 tool changing mode, the headstock 6 is driven by the elevating system to move up and down, the headstock 6 can be changed the tool at the optional position on the vertical direction, pressure boost unclamping mechanism 3 acts, the telescopic link of pressure boost unclamping mechanism 3 drives unclamping rod 21 clockwise rotating, unclamping rod 21 clockwise rotating and drive the unclamping ring motion on the main shaft assembly 5, reset spring 22 is in the tensile state this moment, unclamping ring motion and unclamping the four-clack of main shaft assembly 5, pack the tool into four clacks in the four clacks, the telescopic link withdrawal of pressure boost unclamping mechanism 3, reset spring 22 under the tensile state utilizes its self elasticity to order about unclamping rod 21 anticlockwise rotating and the return, thereby accomplish the action that pressure boost unclamping mechanism 3 snatched the tool. It should be noted that, because the pressurization tool beating mechanism 3 can change tools at any position, the headstock 6 can cooperate with an external tool holder to change tools, and also can cooperate with manual tool changing, thereby improving tool changing efficiency and safety.

With reference to fig. 3, the drilling machining center further includes a butterfly magazine 4, the butterfly magazine 4 being provided with a cutter head for loading a plurality of common cutters 26, the cutter head being rotatably mounted on the outer side of the main spindle box 6. It should be noted that the butterfly magazine 4 is a butterfly magazine 4 used in a drilling center in the prior art, and a person skilled in the art can easily know the specific structure and working principle thereof, and the butterfly magazine 4 can perform a lowering or raising motion with respect to the main spindle box 6, and the cutter head can rotate, so as to automatically select an appropriate common tool 26.

Referring to fig. 3, the drilling machining center further includes a horizontally moving tool magazine 24, the horizontally moving tool magazine 24 includes a moving carriage for carrying at least one special tool 25, and a horizontally moving device for driving the moving carriage to move in a longitudinal direction or/and a transverse direction is provided at the bottom of the moving carriage. It should be noted that the horizontal moving device may be a conventional screw transmission mechanism or a synchronous transmission mechanism adopted by the machine tool as long as the movable carriage can move longitudinally and transversely, and the function of the horizontal moving tool magazine 24 is only used for loading tools which cannot be mounted on the butterfly tool magazine 4 and transferring the tools to the lower part of the main shaft assembly 5. The specific structure and operation of the device will be readily apparent to those skilled in the art.

Compared with the prior art, the automatic knife forging device of drilling machining center of this embodiment, its simple structure, the cost of manufacture is low, and through addding pressure boost knife forging mechanism 3 to make headstock 6 all can carry out the tool changing work in the optional position, artifical manual tool changing is safer, reduces artifical tool changing bruise risk, improves lathe product processingquality, improves product competitiveness.

In the tool changing method of the drilling machining center of the embodiment, the drilling machining center is provided with the butterfly tool magazine 4 and the horizontal moving tool magazine 24, and the tool changing method is provided with at least two modes: in the first mode, a common cutter 26 is used for changing a cutter mode, the lifting mechanism drives the spindle box 6 to ascend to a cutter changing station, the butterfly-type cutter holder 4 rotates when the spindle box 6 ascends to the cutter changing station, one common cutter 26 in the butterfly-type cutter holder 4 is located in the direction of the spindle assembly 5, then the mechanical cutter beating mechanism 2 on the spindle box 6 operates, the cutter beating rod 21 drives a cutter beating ring on the spindle assembly 5 to move, the cutter beating ring moves to loosen four claws of the spindle assembly 5, the spindle box 6 moves downwards in the vertical direction again, the four claws grab the common cutter 26, the mechanical cutter beating mechanism 2 stops moving and returns, the butterfly-type cutter holder 4 rotates, and the common cutter 26 is changed; and in the second mode, a special tool 25 is in a tool changing mode, the horizontal moving device drives the horizontal moving tool magazine 24 to move to the lower side of the spindle box 6, one special tool 25 is aligned with the spindle assembly 5, the spindle box 6 is driven by the lifting mechanism to move downwards to the upper side of the special tool 25, the pressurizing tool beating mechanism 3 acts, the telescopic rod of the pressurizing tool beating mechanism 3 drives the tool beating rod 21 to rotate, the tool beating rod 21 drives a tool beating ring on the spindle assembly 5 to move, the four-jaw of the spindle assembly 5 is loosened by the tool beating ring, the spindle box 6 moves downwards in the vertical direction, the four-jaw grabs the special tool 25, the pressurizing tool beating mechanism 3 stops acting and returns, the horizontal moving tool magazine 24 returns, and tool changing of the special tool 25 is completed.

In the present embodiment, in mode one, the mechanical unclamping mechanism 2 functions as: the cutter bar 21 moves up along with the spindle box 6, the loose cutter collision block 23 of the cutter bar 21 interferes and collides with the impact bearing 10 on the cutter seat 9, and the impact bearing 10 drives the cutter bar 21 to rotate towards the cutter changing direction, so that the cutter bar 21 drives the cutter ring on the spindle assembly 5 to move.

As a preferable scheme, the tool changing method of the drilling machining center further comprises a third mode of manually changing tools, the spindle box 6 is driven to any position in the vertical direction by the lifting mechanism, the lifting mechanism stops, the special tool 25 is manually moved to the position below the spindle assembly 5, the pressurizing and unclamping mechanism 3 is controlled to act, the telescopic rod of the pressurizing and unclamping mechanism is pressed to drive the unclamping rod 21 to rotate, the unclamping rod 21 drives the unclamping ring on the spindle assembly 5 to move, the four-clack claw of the spindle assembly 5 is loosened by the unclamping ring movement, the special tool 25 is manually installed into the four-clack claw, the pressurizing and unclamping mechanism 3 stops and returns, and tool changing of the special tool 25 is completed.

Compared with the prior art, the tool changing method of the drilling machining center is quick in tool changing and easy to operate, tool changing work can be carried out at any position, time for manual tool changing is saved, the damage risk is reduced, the tool changing time is shortened, the machining time is greatly shortened, the production cost is reduced, and the machining efficiency of machine tool products is improved.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (7)

1. An automatic tool striking device of a drilling machining center comprises an upright post and a main shaft box, wherein the main shaft box is slidably mounted on the upright post, and the upright post is provided with a lifting mechanism for driving the main shaft box to lift up and down; the headstock is equipped with fixed mounting main shaft subassembly on the headstock, can for headstock pivoted beats the pole and reset spring, reset spring's one end with the headstock rigid coupling, reset spring's the other end with beat the pole rigid coupling of sword, its characterized in that: a pressurizing knife beating mechanism is also arranged in the spindle box and comprises a telescopic rod capable of telescopic motion;

when the tool is changed, the telescopic rod of the pressurizing tool beating mechanism extends out and drives the tool beating rod to rotate towards the tool beating direction, and the tool beating rod rotates and is matched with the tool beating ring of the main shaft assembly for tool changing.

2. The automatic striking device of a drilling machining center of claim 1, characterized in that: the cutter bar is of an L-shaped structure, a rotating shaft is arranged at the corner of the cutter bar, and the cutter bar is hinged with the spindle box through the rotating shaft.

3. The automatic striking device of a drilling machining center of claim 2, characterized in that: the pressurizing knife forging mechanism is a hydraulic cylinder or a pneumatic cylinder, the pressurizing knife forging mechanism is fixedly installed on the spindle box, and a telescopic rod of the pressurizing knife forging mechanism moves towards the bottom of the knife forging rod in an extending mode.

4. The automatic striking device of a drilling machining center of claim 1, characterized in that: the lifting mechanism comprises a slide rail fixedly mounted on the outer side surface of the stand column, the slide rail is provided with a slide block in sliding fit with the slide rail, the outer side surface of the slide block is fixedly connected with the spindle box, the top end of the stand column is fixedly provided with a motor base, the top end surface of the motor base is fixedly provided with a lifting motor, an output shaft of the lifting motor is fixedly connected with a lead screw body, the lead screw body is sleeved with a lead screw nut, and the lead screw nut is fixedly connected with the spindle box.

5. The automatic striking device of a drilling machining center of claim 4, characterized in that: the motor cabinet orientation the side fixed mounting of beating the cutter arbor has the beating blade seat, rotationally install the striking bearing on the beating blade seat, the top orientation of beating the cutter arbor the side fixed mounting of striking bearing has the pine sword to bump the piece.

6. The automatic striking device of a drilling machining center of claim 1, characterized in that: still include butterfly tool magazine, butterfly tool magazine is equipped with the blade disc that is used for loading a plurality of ordinary cutters, the blade disc is installed with rotating the outside of headstock.

7. The automatic striking device of the drilling machining center of claim 1 or 6, characterized in that: the horizontal moving tool magazine comprises a moving vehicle frame used for loading at least one special tool, and a horizontal moving device used for driving the moving vehicle frame to move along the longitudinal direction or/and the transverse direction is arranged at the bottom of the moving vehicle frame.

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