CN211760199U

CN211760199U - Automatic door of numerical control machine tool

Info

Publication number: CN211760199U
Application number: CN201921981430.0U
Authority: CN
Inventors: 夏辉; 余杰; 黄龙生
Original assignee: Youji Machine Industrial China Co ltd
Current assignee: Youji Machine Industrial China Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-10-27
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to an automatic door of a numerical control machine tool, which comprises a safety mask, wherein an operation opening is arranged on the safety mask, a safety door which can be automatically opened and closed through a cylinder is arranged outside the operation opening, a limit cylinder is arranged on the safety mask, a key is arranged at the end part of an air rod in the limit cylinder, a lock head which corresponds to the key and is matched with the key is arranged on the safety door, and the key and the lock head are controlled through a solenoid valve; the emergency exit left and right sides is provided with one respectively and bumps the piece, be provided with the proximity switch that closes the door and the proximity switch that opens the door that correspond the emergency exit left and right sides respectively and bump the piece on the safety face guard. The automatic door of the numerical control machine tool controls the electromagnetic valve through the instruction and controls the air source to push the limiting cylinder to reciprocate, whether the safety door reaches a closed position or an open position is confirmed through the door closing proximity switch and the door opening proximity switch, the locking and the opening of the door lock are realized through the instruction control electromagnetic valve, and the safety accident is effectively prevented.

Description

Automatic door of numerical control machine tool

Technical Field

The utility model relates to a digit control machine tool field especially relates to a digit control machine tool automatically-controlled door.

Background

The numerical control machine tool is a digital control machine tool for short, and is an automatic machine tool equipped with a program control system, said control system can logically process and decode the program defined by control code or other symbolic instruction, and can use coded digital representation, and can utilize information carrier to input it into numerical control device, and can utilize the numerical control device to give out various control signals to control the action of machine tool so as to automatically machine the part according to the form and size required by drawing. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, and is a typical mechanical and electrical integration product.

The numerical control machine tool generally comprises a processing program carrier, a numerical control device, a servo driving device, a machine tool main body and other auxiliary devices. Generally be provided with the safety guard in the lathe main part, seted up the operation mouth on the safety guard, the convenient operation to the lathe, in order to prevent that the lathe from adding the iron cut and splashing, influence safety, be equipped with the emergency exit on the operation mouth, current lathe emergency exit generally divide into manually open and through the automatic mode of opening of cylinder, nevertheless, do not have on the current lathe to open the emergency exit and return the real-time detection that targets in place, the incident takes place easily.

Disclosure of Invention

The utility model aims to solve the technical problem that a numerical control machine tool automatic door capable of monitoring the opening and closing positions of a machine tool safety door in real time and limiting the closed rear position of the safety door is provided to prevent the safety door from being opened at will and causing safety accidents.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: an automatic door of a numerical control machine tool comprises a safety mask which is used for covering the outside of a machine tool body, an operation opening is arranged on the front side of the safety mask, a detachable closed surface is arranged on the right half side of the operation opening, a safety door is arranged on the outside of the left half side of the operation opening, an upper guide rail and a lower guide rail are respectively arranged at the positions, which are positioned at the upper side and the lower side of the operation opening, on the front side and the rear side of the safety mask, an upper guide block which is in rolling fit with the upper guide rail and a lower guide rail which is in rolling fit with the lower guide rail are respectively arranged at the upper end and the lower end of the safety door, the safety door is pushed to reciprocate on the upper guide rail and the lower guide rail through an opening and closing door arranged on the machine tool, a limiting cylinder is fixedly arranged right above the closed surface on the safety mask and is controlled by, the key and the lock head are controlled to be opened and closed through an external electromagnetic valve; the position that the emergency exit openly is close to the left and right sides is provided with the piece respectively and collides the piece, and two are collided the mutual symmetry of piece, the position that lies in the operation mouth left and right sides on the safety face guard is provided with respectively by lathe PLC system control's the proximity switch that closes the door and the proximity switch that opens the door, the proximity switch that closes the door corresponds the piece that collides of the left and right sides on the emergency exit respectively with the proximity switch that opens the door.

Preferably, the upper guide rail is internally provided with a guide groove, the guide groove is communicated with the outside through a guide opening arranged on the front surface of the upper guide rail, and the back surface of the upper guide rail is fixed on the safety face cover; the guide groove is internally provided with a guide wheel which is matched with the guide groove in a rolling way, the guide wheel penetrates through the guide opening through a pin shaft and is connected with an upper guide block arranged on the outer side of the guide opening, and the upper guide block is fixedly arranged on the safety door.

Preferably, the guide wheel is in interactive connection with the pin shaft through a bearing.

Preferably, the lower guide rail is provided with a guide groove with an upward opening, and the lower pulley is in rolling fit with the guide groove.

Preferably, the safety door has a length slightly greater than that of the closing surface, and a right end of the safety door overlaps with a left end portion of the closing surface after the safety door is closed.

Preferably, the lock head is fixedly connected with the bracket fixedly arranged at the upper left corner of the front face of the safety door.

Compared with the prior art, the utility model discloses an useful part is: the automatic door of the numerical control machine tool controls the electromagnetic valve through an instruction and controls the air source to push the limiting cylinder to reciprocate, confirms whether the safety door reaches a closed or opened position through the door closing proximity switch and the door opening proximity switch, and realizes locking and opening of the door lock through the instruction control electromagnetic valve; in the operation of the machine tool equipment, an operator cannot manually open the safety door until the operation of the machine tool equipment is finished, so that the door lock can be opened through an instruction and the safety door can be opened simultaneously, and the safety accident can be effectively prevented.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of the automatic door of the numerical control machine tool of the present invention;

fig. 2 is a schematic diagram of the cooperation principle of the upper guide rail and the upper guide block in the automatic door of the numerical control machine tool of the utility model.

In the figure: 1. a safety housing; 2. an operation port; 3. a closed face; 4. a safety door; 5. a cylinder; 51. a gas lever; 52. a key; 53. a lock head; 6. a bracket; 7. an upper guide rail; 71. a guide opening; 72. a guide groove; 8. an upper guide block; 9. a door closing proximity switch; 10. a door opening proximity switch; 11. bumping blocks; 12. a lower guide rail; 13. a lower pulley; 14. a guide wheel; 15. a bearing; 16. and (7) a pin shaft.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

fig. 1 shows a numerical control machine tool automatic door, which comprises a safety mask 1 covering the outside of a machine tool body, wherein an operation opening 2 is arranged on the front surface of the safety mask 1, a detachable sealing surface 3 is arranged on the right half surface of the operation opening 2, a safety door 4 is arranged on the outside of the left half surface, an upper guide rail 7 and a lower guide rail 12 are respectively arranged at the positions of the front surface of the safety mask 1, which are positioned at the upper side and the lower side of the operation opening 2, the upper end and the lower end of the safety door 4 are respectively provided with an upper guide block 8 in rolling fit with the upper guide rail 7 and a lower guide wheel 13 in rolling fit with the lower guide rail 12, the safety door 4 is pushed to reciprocate on the upper guide rail 7 and the lower guide rail 12 by an opening and closing door cylinder arranged on the machine tool, a limiting cylinder 5 is fixedly arranged right above the sealing surface 3 on the safety mask 1, the limiting cylinder 5 is controlled by an external, the safety door 4 is provided with a lock 53 corresponding to and matched with the key 52, and the opening and closing of the key 52 and the lock 53 are controlled by an external electromagnetic valve; the position that emergency exit 4 openly is close to the left and right sides is provided with one respectively and bumps piece 11, and two block bumps 11 mutual symmetries, the position that lies in the 2 left and right sides of operation mouth on the safety face guard 1 is provided with respectively by machine tool PLC system control's the proximity switch 9 of closing the door and the proximity switch 10 of opening the door, the proximity switch 9 of closing the door corresponds the emergency exit 4 on the left and right sides respectively and bumps piece 11 with opening the door.

As shown in fig. 2, a guide groove 72 is provided inside the upper rail 7, the guide groove 72 communicates with the outside through a guide opening 71 provided on the front surface of the upper rail 7, and the back surface of the upper rail 7 is fixed to the safety mask 1; the guide groove 72 is internally provided with a guide wheel 14 in rolling fit with the guide groove, the guide wheel 14 passes through the guide opening 71 through a pin 16 and is connected with an upper guide block 8 arranged outside the guide opening 71, the guide wheel 14 and the pin 16 are in interactive connection through a bearing 15, and the upper guide block 8 is fixedly arranged on the safety door 4.

In order to facilitate the guiding movement of the safety door 4, a guide groove with an upward opening is formed in the lower guide rail 12, and the lower pulley 13 is in rolling fit with the guide groove.

In order to ensure that the safety door 4 can be completely covered on the operation opening 2 and ensure the processing safety, the length of the safety door 4 is slightly larger than that of the sealing surface 3, and the right end of the safety door 4 is overlapped with the left end part of the sealing surface 3 after being closed.

In order to facilitate the locking head 53 to be installed in place, the locking head 53 is fixedly connected with the bracket 6 fixedly arranged at the upper left corner of the front surface of the safety door 4 corresponding to the key 52.

The specific working principle is as follows: when the safety door 4 is closed through the door opening and closing cylinder, the door opening and closing cylinder pushes the safety door 4 to linearly move left under the limitation and action of the upper guide rail 7 and the lower guide rail 12, when the collision block 11 at the left end of the safety door 4 touches the door closing proximity switch 9, the door closing proximity switch 9 transmits a signal to a machine tool PLC system through a cable to confirm the closing position of the safety door 4, after the safety door 4 is confirmed to be in place, the air rod 51 on the limiting cylinder 5 is opened under the control of the electromagnetic valve, the key 52 at the end part of the air rod 51 is in butt joint fit with the lock 53 on the safety door 4, then the electromagnetic valve of the lock 53 is controlled to control the key 52 and the lock 53 to be locked, the position of; after the machine tool is machined, the electromagnetic valve on the lock 53 controls the lock to be unlocked with the key 52, the air rod 51 of the stopper steel 5 is retracted under the control of the corresponding electromagnetic valve, the key 52 is driven to be separated from the lock 53, then the door opening and closing cylinder controls the safety door 4 to move to the right under the limitation and action of the upper guide rail 7 and the lower guide rail 12, when the collision block 11 at the right end of the safety door 4 touches the door opening proximity switch 10, the door opening proximity switch 10 transmits a signal to a machine tool PLC system through a cable, and the closing position of the safety door 4 is confirmed; if the safety door 4 cannot touch the door closing proximity switch 9 or the door opening proximity switch 10 after being closed or opened, the corresponding door closing proximity switch 9 or the door opening proximity switch 10 can give an alarm signal to the PLC system through a cable, so as to attract the attention of an operator.

The automatic door of the numerical control machine tool controls the electromagnetic valve through an instruction and controls the air source to push the limiting cylinder 5 to reciprocate, confirms whether the safety door 4 reaches a closed or opened position through the close-door proximity switch 9 and the open-door proximity switch 10, and realizes the locking and opening of the door lock through the instruction control electromagnetic valve; in the operation of the machine tool equipment, an operator cannot manually open the safety door 4 until the operation of the machine tool equipment is finished, so that the door lock can be opened through an instruction and the safety door 4 can be opened at the same time, and the safety accident can be effectively prevented.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a digit control machine tool automatically-controlled door, is including being used for covering safety mask (1) of establishing at the lathe bed outside, the front of safety mask (1) is provided with operation mouth (2), the right half of operation mouth (2) is detachable closed surface (3), and the half outside of left side is provided with emergency exit (4), the position that safety mask (1) openly lies in operation mouth (2) upper and lower both sides is provided with guide rail (7) and lower rail (12) respectively, the upper and lower both ends of emergency exit (4) are provided with respectively with upper guide rail (7) rolling fit's last guide block (8) and with lower rail (12) rolling fit's lower pulley (13), emergency exit (4) promote it through the door cylinder of opening and closing that sets up on the lathe and do reciprocating motion on upper guide rail (7) and lower rail (12), its characterized in that: a limiting cylinder (5) is fixedly arranged on the safety mask (1) right above the closed surface (3), the limiting cylinder (5) is controlled by an external electromagnetic valve, a key (52) is fixedly arranged at the end part of a gas rod (51) in the limiting cylinder (5), a lock head (53) corresponding to the key (52) and matched with the key (52) is arranged on the safety door (4), and the opening and closing of the key (52) and the lock head (53) are controlled by the external electromagnetic valve; safety door (4) openly are close to the position of the left and right sides and are provided with one respectively and bump piece (11), and two bump piece (11) mutual symmetry, the position that lies in operation mouth (2) left and right sides on safety face guard (1) is provided with respectively by closing door proximity switch (9) and the proximity switch (10) that opens the door of lathe PLC system control, close door proximity switch (9) and the proximity switch (10) that opens the door correspond respectively on safety door (4) the block (11) that bumps of the left and right sides.

2. The numerical control machine tool automatic door according to claim 1, characterized in that: a guide groove (72) is formed in the upper guide rail (7), the guide groove (72) is communicated with the outside through a guide opening (71) formed in the front face of the upper guide rail (7), and the back face of the upper guide rail (7) is fixed on the safety mask (1); the safety door is characterized in that a guide wheel (14) in rolling fit with the guide groove (72) is arranged in the guide groove (72), the guide wheel (14) penetrates through the guide opening (71) through a pin shaft (16) and is connected with an upper guide block (8) arranged on the outer side of the guide opening (71), and the upper guide block (8) is fixedly arranged on the safety door (4).

3. The numerical control machine tool automatic door according to claim 2, characterized in that: the guide wheel (14) and the pin shaft (16) are in interactive connection through a bearing (15).

4. The numerical control machine tool automatic door according to claim 1, characterized in that: the lower guide rail (12) is provided with a guide groove with an upward opening, and the lower pulley (13) is matched with the guide groove in a rolling manner.

5. The numerical control machine tool automatic door according to claim 1, characterized in that: the length of the safety door (4) is slightly larger than that of the sealing surface (3), and the right end of the safety door (4) coincides with the left end of the sealing surface (3) after the safety door is closed.

6. The numerical control machine tool automatic door according to claim 1, characterized in that: the lock head (53) is fixedly connected with the bracket (6) fixedly arranged at the upper left corner of the front surface of the safety door (4).