CN220462524U

CN220462524U - Wire breakage protection mechanism of numerical control wire cutting machine tool

Info

Publication number: CN220462524U
Application number: CN202322349778.0U
Authority: CN
Inventors: 张华北
Original assignee: Henan Jianhui Machinery Equipment Co ltd
Current assignee: Henan Jianhui Machinery Equipment Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-02-09
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses a broken wire protection mechanism of a numerical control linear cutting machine, which comprises a working box, an adjusting mechanism and a fixing mechanism; working box: the rear end of the working box is provided with a support, the inside of the support is rotationally connected with a screw rod, the upper end of the support is provided with a motor II, an output shaft of the motor II is fixedly connected with the screw rod, a supporting arm is in threaded connection with the middle part of the screw rod, the supporting arm is in sliding connection with a sliding groove in the support, the upper end of the working box is fixedly connected with a protection plate, the front end and the rear end of the protection plate are fixedly connected with fixing seats, the inside of the fixing seat at the front end is rotationally connected with a screw rod III, and the inside of the fixing seat at the rear end is fixedly connected with a guide post; an adjusting mechanism: the wire breakage protection mechanism is arranged at the lower end of the supporting arm, so that the protection precision of the wire breakage protection mechanism of the numerical control wire cutting machine is effectively improved, and the working efficiency of the wire breakage protection mechanism of the numerical control wire cutting machine is further effectively improved.

Description

Wire breakage protection mechanism of numerical control wire cutting machine tool

Technical Field

The utility model relates to the technical field of automatic protection devices of linear cutting machines, in particular to a broken wire protection mechanism of a numerical control linear cutting machine.

Background

The numerical control linear cutting machine consists of a workbench, a wire feeding mechanism, a liquid supply system, a pulse power supply, a control system and the like, in daily life, sparks are often seen to be generated at the moment when a switch is closed or opened by an electric appliance, uneven spots appear on contacts due to melting of high temperature generated by the sparks, the electric corrosion phenomenon is caused, the poor contact and the final damage of the switch are caused, and the electric corrosion phenomenon is harmful. However, with the intensive research of the electric corrosion phenomenon by people, not only can corrosion be reduced and prevented by a scientific method, but also various machining processes are successfully performed on metal by utilizing electric corrosion, so that an electric spark machining method is invented, and the electric spark machining method is also the working principle of a numerical control linear cutting machine;

the existing part of numerical control wire cutting machine tools are monitored by adopting a sensorless mode, when electrode wires are broken, the numerical control wire cutting machine tools stop running, and after people know the operation, equipment is closed by manual operation;

there are some problems, such as a mode of sensorless monitoring, lack of monitoring and reasonable control of the electrode wire, which may affect the safety of the numerically-controlled wire cutting machine, and may affect the accuracy of the wire breakage protection mechanism of the numerically-controlled wire cutting machine, thereby affecting the working efficiency of the wire breakage protection mechanism of the numerically-controlled wire cutting machine.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the wire breakage protection mechanism of the numerical control wire cutting machine, the control of electrode wires is improved through the adjusting unit, the winding is avoided during wire breakage, the influence of wire breakage on the cutting state of materials is avoided through the fixing unit, the protection precision of the wire breakage protection mechanism of the numerical control wire cutting machine is effectively improved, the working efficiency of the wire breakage protection mechanism of the numerical control wire cutting machine is further effectively improved, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the wire breakage protection mechanism of the numerical control wire cutting machine tool comprises a working box, an adjusting mechanism and a fixing mechanism;

working box: the rear end of the working box is provided with a support, the inside of the support is rotationally connected with a screw rod, the upper end of the support is provided with a motor II, an output shaft of the motor II is fixedly connected with the screw rod, a supporting arm is in threaded connection with the middle part of the screw rod, the supporting arm is in sliding connection with a sliding groove in the support, the upper end of the working box is fixedly connected with a protection plate, the front end and the rear end of the protection plate are fixedly connected with fixing seats, the inside of the fixing seat at the front end is rotationally connected with a screw rod III, and the inside of the fixing seat at the rear end is fixedly connected with a guide post;

an adjusting mechanism: the support arm is arranged at the lower end of the support arm;

the fixing mechanism comprises: the guide posts are respectively arranged in the middle of the screw rod III and the guide posts;

wherein: still include the PLC controller, the PLC controller sets up in the rear end of work box right surface, and the input and the output electricity of PLC controller of motor two are connected, and the input and the external power source electricity of PLC controller are connected, realize the taut processing to the wire electrode through adjusting unit, and the wire electrode takes place to twine when avoiding the broken string simultaneously, and fixed unit realizes the fixed to the material, influences the cutting state of material when avoiding the broken string, has effectively improved the protection accuracy of the broken wire protection mechanism of numerical control wire cutting machine tool, and then has effectively improved the work efficiency of the broken wire protection mechanism of numerical control wire cutting machine tool.

Further, adjustment mechanism includes motor three, regulating wheel, regulating seat and screw rod one, regulating seat fixed connection is connected with screw rod one in the lower extreme of support arm, and the inside rotation of the inside recess of regulating seat, the middle part threaded connection of screw rod one has the sliding block, and sliding block and the inside recess sliding connection of regulating seat, the left end rotation of sliding block is connected with the regulating wheel, and motor three sets up in the rear end of regulating seat, and motor three's output shaft and screw rod one fixed connection, motor three's input and the output electricity of PLC controller are connected, realize the control to wire electrode elasticity.

Further, fixed establishment includes sliding seat, screw rod two, splint and guide bar, sliding seat threaded connection is in the middle part of screw rod three, and the middle part of guide post also sliding connection has the sliding seat, and the sliding seat all with the inside sliding chamber sliding connection of vertical adjacent fixing base, the left end of sliding seat upper surface all rotates to be connected with screw rod two, the equal threaded connection in middle part of screw rod two has splint, and the equal fixed connection of guide bar is in the right-hand member of sliding seat upper surface, splint all with horizontal adjacent guide bar sliding connection, realizes the fixed and the removal to the material.

Further, the front end and the rear end of the supporting arm are both rotationally connected with a first driving wheel, the front end of the supporting right side surface is provided with a first motor, an output shaft of the first motor is fixedly connected with the first driving wheel of the front end, the middle part of the upper surface of the working box is provided with a water conveying groove, the front end of the water conveying groove is rotationally connected with a second driving wheel, the rear end of the working box is fixedly connected with a mounting seat, the inside of the mounting seat is rotationally connected with a rotary drum, electrode wires are arranged among the rotary drum, the first driving wheel, the second driving wheel and the regulating wheel, the left end of the mounting seat is provided with uniformly distributed graphite brushes, the graphite brushes are matched and mounted with the electrode wires, the right end of the mounting seat is provided with a fourth motor, an output shaft of the fourth motor is fixedly connected with the rotary drum, and the input ends of the first motor and the fourth motor are electrically connected with the output end of the PLC, so that the electrode wires are replaced.

Further, the device also comprises infrared sensors, wherein the infrared sensors are respectively arranged at the front end of the cavity at the upper end of the working box and the rear end of the supporting arm, and are electrically connected with the PLC in a bidirectional manner, so that the state of the electrode wire is observed in real time.

Further, the device also comprises a motor five, wherein the motor five is arranged at the right end of the fixed seat at the front end, an output shaft of the motor five is fixedly connected with the screw rod three, and an input end of the motor five is electrically connected with an output end of the PLC controller to provide driving force for the movement of materials in the fixation.

Further, the front end of support arm left side surface is provided with the water tank, and the right side inner wall of water tank is provided with the infusion pump, and the input of infusion pump is connected with the output electricity of PLC controller, cools off the cutting part.

Compared with the prior art, the utility model has the beneficial effects that: the broken wire protection mechanism of the numerical control wire cutting machine tool has the following advantages:

the personnel at first place the material in the upper end of sliding seat, personnel are through the knob of rotating screw rod second upper end, make screw rod second rotate, and then make splint glide under the effect of guide bar, and then realize the centre gripping to the material, adjust two fixed establishment in proper order, realize the stable fixed to the material, then personnel realize motor three operation through the PLC controller, motor three operation, motor three's output shaft rotation drives screw rod first rotation, make the sliding block slide forward, and then make the regulating wheel slide forward, regulating wheel and vertical adjacent drive wheel first cooperation work, make the wire electrode be in the state of tightening, when infrared sensor detects the wire electrode and appears the broken wire condition in the cutting process, transfer information to the PLC controller in real time, the PLC controller self-closing motor five, and realize motor four operations, motor four's output shaft rotates and drives the rotary drum and rotate, realize wire electrode wire change displacement on the driving wheel one, and drive wheel two and regulating wheel, and then wire breakage part in time rewiring, the wire electrode of convenient follow-up personnel is improved through the regulating unit, and realize the fixed to the material, wire electrode breakage's fixed, wire electrode wire breakage's numerical control protection device has effectively improved the wire cutting machine tool, and wire cutting machine tool efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the interior of the present utility model;

FIG. 3 is a schematic cross-sectional view of the right side of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the present utility model at a.

In the figure: the device comprises a working box 1, a motor I, a screw rod 3, a motor II, a regulating mechanism 5, a motor III, a regulating wheel 52, a regulating seat 53, a screw rod 54, a fixing mechanism 6, a sliding seat 61, a screw rod II, a clamping plate 63, a guide rod 64, a driving wheel I7, a driving wheel II 8, an infrared sensor 9, a wire electrode 10, a graphite brush 11, a motor IV 12, a mounting seat 13, a PLC 14, a motor V15, a bracket 16, a fixing seat 17, an infusion pump 18, a screw rod III 19 and a water tank 20.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides the following technical solutions: the wire breakage protection mechanism of the numerical control wire cutting machine tool comprises a working box 1, an adjusting mechanism 5 and a fixing mechanism 6;

working box 1: the rear end of the working box is provided with a support 16, the inside of the support 16 is rotationally connected with a screw rod 3, the upper end of the support 16 is provided with a motor II 4, an output shaft of the motor II 4 is fixedly connected with the screw rod 3, the middle part of the screw rod 3 is in threaded connection with a supporting arm, the supporting arm is in sliding connection with a sliding groove in the support 16, the upper end of the working box 1 is fixedly connected with a protection plate, the front end and the rear end of the protection plate are fixedly connected with fixing seats 17, the inside of the fixing seat 17 at the front end is rotationally connected with a screw rod III 19, and the inside of the fixing seat 17 at the rear end is fixedly connected with a guide column;

adjusting mechanism 5: the wire electrode wire 10 is in a tight state by the fact that the wire electrode wire is arranged at the lower end of a supporting arm, an adjusting mechanism 5 comprises a motor III 51, an adjusting wheel 52, an adjusting seat 53 and a screw one 54, the adjusting seat 53 is fixedly connected to the lower end of the supporting arm, the screw one 54 is rotationally connected to the inside of a groove in the adjusting seat 53, a sliding block is connected to the middle part of the screw one 54 in a threaded mode and is in sliding connection with the groove in the adjusting seat 53, the adjusting wheel 52 is rotationally connected to the left end of the sliding block, the motor III 51 is arranged at the rear end of the adjusting seat 53, an output shaft of the motor III 51 is fixedly connected with the screw one 54, an input end of the motor III 51 is electrically connected with the output end of the PLC 14, the motor III 51 runs, the screw one 54 is driven by rotation of the output shaft of the motor III 51, the sliding block forwards slides, and then the adjusting wheel 52 forwards slides with a vertically adjacent driving wheel one 7 in a matched mode;

and a fixing mechanism 6: the fixing mechanism 6 comprises a sliding seat 61, a screw rod II 62, clamping plates 63 and a guide rod 64, wherein the sliding seat 61 is in threaded connection with the middle part of the screw rod III 19, the middle part of the guide rod is also in sliding connection with the sliding seat 61, the sliding seat 61 is in sliding connection with a sliding cavity inside a vertically adjacent fixed seat 17, the left end of the upper surface of the sliding seat 61 is rotationally connected with the screw rod II 62, the middle part of the screw rod II 62 is in threaded connection with the clamping plates 63, the guide rod 64 is fixedly connected with the right end of the upper surface of the sliding seat 61, the clamping plates 64 are in sliding connection with the transversely adjacent guide rod 64, and a knob at the upper end of the screw rod II 62 is rotated to enable the screw rod II 62 to rotate, so that the clamping plates 63 slide downwards under the action of the guide rod 64 to clamp materials, and the two fixing mechanisms 6 are sequentially adjusted to realize stable fixing of the materials;

wherein: the device further comprises a PLC (programmable logic controller) 14, wherein the PLC 14 is arranged at the rear end of the right surface of the working box 1, the input end of the motor II 4 is electrically connected with the output end of the PLC 14, and the input end of the PLC 14 is electrically connected with an external power supply;

wherein: the front end and the rear end of the supporting arm are both rotationally connected with a first driving wheel 7, the front end of the surface on the right side is provided with a first motor 2, an output shaft of the first motor 2 is fixedly connected with the first driving wheel 7 at the front end, the middle part of the upper surface of the working box 1 is provided with a water conveying groove, the front end of the water conveying groove is rotationally connected with a second driving wheel 8, the rear end of the working box 1 is fixedly connected with a mounting seat 13, the inside of the mounting seat 13 is rotationally connected with a rotary drum, electrode wires 10 are arranged among the rotary drum, the first driving wheel 7, the second driving wheel 8 and an adjusting wheel 52, graphite brushes 11 which are uniformly distributed are arranged at the left end of the mounting seat 13 and are respectively matched and installed with the electrode wires 10, the input end of the graphite brushes 11 is electrically connected with the output end of a PLC (programmable logic controller) 14, the right end of the mounting seat 13 is provided with a fourth motor 12, the output shaft of the fourth motor 12 is fixedly connected with the rotary drum, and the input ends of the first motor 2 and the fourth motor 12 are electrically connected with the output end of the PLC 14;

wherein: the device also comprises an infrared sensor 9, wherein the infrared sensor 9 is respectively arranged at the front end of the cavity at the upper end of the working box 1 and the rear end of the supporting arm, and the infrared sensor 9 is electrically connected with the PLC 14 in a bidirectional manner;

wherein: the motor five 15 is arranged at the right end of the fixed seat 17 at the front end, an output shaft of the motor five 15 is fixedly connected with the screw rod three 19, and an input end of the motor five 15 is electrically connected with an output end of the PLC 14;

wherein: the front end of the left side surface of the support arm is provided with a water tank 20, the right side inner wall of the water tank 20 is provided with an infusion pump 18, and the input end of the infusion pump 18 is electrically connected with the output end of the PLC 14.

The working principle of the broken wire protection mechanism of the numerical control wire cutting machine tool provided by the utility model is as follows: during operation, a person firstly places a material at the upper end of the sliding seat 61, rotates the knob at the upper end of the second screw rod 62 to enable the second screw rod 62 to rotate, further enables the clamping plate 63 to slide downwards under the action of the guide rod 64, further realizes clamping of the material, sequentially adjusts the two fixing mechanisms 6 to realize stable fixing of the material, then the person realizes operation of the third motor 51 through the PLC 14, the third motor 51 operates, an output shaft of the third motor 51 rotates to drive the first screw rod 54 to rotate to enable the sliding block to slide forwards, further enables the regulating wheel 52 to slide forwards, the regulating wheel 52 works in cooperation with the vertically adjacent first driving wheel 7 to enable the electrode wire 10 to be in a tight state, when the regulating wheel 52 reaches a required position, the PLC 14 controls the graphite brush 11 to conduct a power supply, the graphite brush 11 is in contact with the electrode wire 10 to conduct electricity, the motor III 51 is closed by the PLC 14 and the operation of the infrared sensor 9 is realized, the real-time state monitoring of the temperature generated by the electrode wire 10 is realized, monitoring information is transmitted to the PLC 14 in real time, the operation of the motor V15 is realized by the PLC 14, the output shaft of the motor V15 rotates to drive the screw III 19 to rotate, the sliding seat 61 at the front end moves rightwards, the movement of materials is realized, the cutting of the materials is realized by matching with the electrode wire 10, meanwhile, the operation of the infusion pump 18 is realized by the PLC 14, the water pump in the water tank 20 is discharged, the real-time cooling treatment is carried out on the cutting point, when the infrared sensor 14 detects the wire breakage condition of the electrode wire 10 in the cutting process, the real-time information is transmitted to the PLC 14, the motor V15 is automatically closed by the PLC 14, the operation of the motor V12 is realized, the output shaft of the motor V12 rotates to drive the rotary drum to rotate, the wire replacement displacement of the wire electrode 10 on the transmission wheel I7, the transmission wheel II 8 and the regulating wheel 52 is realized, and the wire electrode 10 on the transmission wheel I7, the transmission wheel II 8 and the regulating wheel 52 can be timely retracted, so that the subsequent personnel can conveniently rewire.

It should be noted that, in the above embodiment, the first motor 2 and the third motor 51 may be 5i k90A-AF motors, the second motor 4, the fourth motor 12 and the fifth motor 15 may be 5i k120A-AF motors, the infrared sensor 9 may be an LE3FJ sensor, the PLC controller 14 may be a KV-N40DTP programmable controller, the infusion pump 18 may be an SB-8 electric infusion pump, and the PLC controller 14 controls the first motor 2, the second motor 4, the third motor 51, the fourth motor 12, the fifth motor 15, the infrared sensor 9 and the infusion pump 18 to operate by methods commonly used in the prior art.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. Wire breakage protection mechanism of numerical control wire cut electrical discharge machining bed, its characterized in that: comprises a working box (1), an adjusting mechanism (5) and a fixing mechanism (6);

working box (1): the rear end of the working box is provided with a support (16), the inside of the support (16) is rotationally connected with a screw rod (3), the upper end of the support (16) is provided with a motor II (4), an output shaft of the motor II (4) is fixedly connected with the screw rod (3), the middle part of the screw rod (3) is in threaded connection with a supporting arm, the supporting arm is in sliding connection with a sliding groove in the support (16), the upper end of the working box (1) is fixedly connected with a protection plate, the front end and the rear end of the protection plate are fixedly connected with fixing seats (17), the inside of the fixing seat (17) at the front end is rotationally connected with a screw rod III (19), and the inside of the fixing seat (17) at the rear end is fixedly connected with a guide post;

adjusting mechanism (5): the support arm is arranged at the lower end of the support arm;

fixing mechanism (6): the guide posts are respectively arranged in the middle of the screw rod III (19) and the guide posts;

wherein: the automatic control device is characterized by further comprising a PLC (programmable logic controller) controller (14), wherein the PLC controller (14) is arranged at the rear end of the right surface of the working box (1), the input end of the motor II (4) is electrically connected with the output end of the PLC controller (14), and the input end of the PLC controller (14) is electrically connected with an external power supply.

2. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: the adjusting mechanism (5) comprises a motor III (51), an adjusting wheel (52), an adjusting seat (53) and a screw I (54), wherein the adjusting seat (53) is fixedly connected to the lower end of the supporting arm, the screw I (54) is rotationally connected to the inside of a groove in the adjusting seat (53), a sliding block is connected to the middle of the screw I (54) in a threaded mode, the sliding block is slidingly connected with the groove in the adjusting seat (53), the adjusting wheel (52) is rotationally connected to the left end of the sliding block, the motor III (51) is arranged at the rear end of the adjusting seat (53), an output shaft of the motor III (51) is fixedly connected with the screw I (54), and the input end of the motor III (51) is electrically connected with the output end of the PLC (14).

3. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: fixed establishment (6) are including sliding seat (61), screw rod two (62), splint (63) and guide bar (64), sliding seat (61) threaded connection is in the middle part of screw rod three (19), and sliding seat (61) are also slidingly connected in the middle part of guide post, sliding seat (61) all with the inside sliding chamber sliding connection of vertical adjacent fixing base (17), sliding seat (61) upper surface's left end all rotates and is connected with screw rod two (62), screw rod two (62) the equal threaded connection in middle part has splint (63), guide bar (64) all fixed connection in sliding seat (61) upper surface's right-hand member, splint (63) all with horizontal adjacent guide bar (64) sliding connection.

4. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: the front end and the rear end of the supporting arm are both rotationally connected with a first driving wheel (7), the front end of the surface on the right side is provided with a first motor (2), an output shaft of the first motor (2) is fixedly connected with the first driving wheel (7) on the front end, a water conveying groove is formed in the middle of the upper surface of the working box (1), the front end of the water conveying groove is rotationally connected with a second driving wheel (8), the rear end of the working box (1) is fixedly connected with a mounting seat (13), a rotating drum is rotationally connected with the inside of the mounting seat (13), electrode wires (10) are arranged between the rotating drum, the first driving wheel (7), the second driving wheel (8) and the regulating wheel (52), graphite brushes (11) which are uniformly distributed are arranged are matched and installed with the electrode wires (10), the right end of the mounting seat (13) is provided with a fourth motor (12), and the output shaft of the fourth motor (12) is fixedly connected with the rotating drum, and the input ends of the first motor (2) and the fourth motor (12) are electrically connected with the output end of the PLC (14).

5. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: the automatic feeding device is characterized by further comprising an infrared sensor (9), wherein the infrared sensor (9) is respectively arranged at the front end of a cavity at the upper end of the working box (1) and the rear end of the supporting arm, and the infrared sensor (9) is electrically connected with the PLC (14) in a bidirectional mode.

6. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: the motor five (15) is arranged at the right end of the fixed seat (17) at the front end, an output shaft of the motor five (15) is fixedly connected with the screw rod three (19), and an input end of the motor five (15) is electrically connected with an output end of the PLC (14).

7. The wire breakage protection mechanism of a numerical control wire cutting machine according to claim 1, wherein: the front end of support arm left side surface is provided with water tank (20), and the right side inner wall of water tank (20) is provided with infusion pump (18), and the input of infusion pump (18) is connected with the output electricity of PLC controller (14).