WO2022016744A1

WO2022016744A1 - Punching machine switch locking device and method for using same

Info

Publication number: WO2022016744A1
Application number: PCT/CN2020/127151
Authority: WO
Inventors: 张天伟; 吕时广; 杨辉; 王灵英; 蔡镇蔚; 应颂; 王发强
Original assignee: 浙江金澳兰机床有限公司
Priority date: 2020-07-21
Filing date: 2020-11-06
Publication date: 2022-01-27
Also published as: CN112024761B; CN112024761A

Abstract

A punching machine switch locking device and a method for using same, the device comprising a machine tool base (1) and a lower die (2) provided above the machine tool base (1), a pressing rod (3) is provided on a side surface of the lower die (2), the pressing rod (3) is a right angle rod, the vertical section of the pressing rod (3) penetrates the machine tool base (1) and then the upper end surface thereof is higher than the plane of the lower die (2), a first fulcrum (4) is provided on the pressing rod (3), the first fulcrum (4) is rotatably provided on the machine tool base (1), and the right end of the pressing rod (3) is connected to a locking device by means of a first pull rope (5). The punching machine switch locking device is safe and effective, and not only can a protective cover (16) be effectively used by workers when using the punching machine, but the punching machine switch can also be protected from being mistakenly touched, greatly reducing the occurrences of safety accidents, and enabling the workers to have better safe production habits.

Description

A punch switch locking device and method of using the same

technical field

The invention relates to the technical field of machine tools, in particular to a punch switch locking device.

Background technique

The punch press is a processing machine tool with a wide range of uses. In production, the punching process has the advantages of saving materials and energy, and higher efficiency than traditional machining, and can make products that cannot be achieved by machining through the application of molds. In actual production, it is mainly aimed at sheet metal. In today's production process, there are often safety issues such as chip splashes when stamping sheets, so guards are added when stamping. However, in order to improve efficiency in production, workers usually punch continuously without using a protective cover, which will cause safety hazards, and workers usually touch the foot switch by mistake during frequent walking in order to speed up the process, causing the slider to fall and cause a safety accident.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the present invention provides a punch switch locking device and a use method thereof.

In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions: a punch switch locking device, comprising a machine tool seat, a lower die arranged above the machine tool seat, a pressing rod is arranged on the side of the lower die, and the pressing The rod is a right-angle rod, and the upper end surface of the vertical section of the pressing rod is higher than the plane of the lower die after the vertical section of the pressing rod is passed through the machine base. The right end of the pressing rod is connected with the locking device through a first pulling rope, a first pulley is arranged between the pressing rod and the locking device, and the first pulling rope is wound on the lower semicircle of the first pulley;

In the above solution, preferably, the locking device includes a pedal, a pedal cover, a first spring, a second spring, a gear and a lock pin, and the pedal is rotatably arranged on the second fulcrum at the bottom of the pedal cover (on the bottom surface of the pedal). A first spring is connected with the bottom plate of the pedal cover, a gear is arranged on the side of the pedal cover, a circular arc-shaped rack is arranged on the pedal, and a lock pin is arranged on the left side of the gear. The lock pin is connected to the first pull rope after passing through the left hole of the pedal cover, and the second spring is sleeved on the lock pin against the right side boss of the lock pin and the left side plate of the pedal cover, and the right side of the pedal cover The door closing device has the beneficial effects of providing a switch pedal locking device, which can link the plate to be punched with the foot switch, and unlock the foot pedal through the induction of the plate.

In the above scheme, preferably, the door closing device includes a door panel, a second pull rope, a protective cover and a second pulley, the lower end of the door panel is rotatably arranged on the right end of the bottom plate of the pedal cover, and the upper end of the door panel is connected with one end of the second pull rope, The other end of the second pull rope is wound around the lower arc of the second pulley and then connected to the protective cover. The protective cover is slidably arranged above the machine base. , Through the linkage between the protective cover and the door panel, the punch press can close the door panel of the pedal switch after completing a job to prevent workers from accidentally touching it.

In the above solution, preferably, the pressing rod is a plastic rod, the upper end surface of the vertical section of the pressing rod is a spherical surface, and the upper part of the machine base is provided with a cavity that is convenient for the pressing rod to rotate and swing. The beneficial effects are: providing A light-weight pressing rod is provided, so that the pressing rod can react more sensitively, quickly and effectively after being pressed by the plate, and the pressing rod can rotate in the cavity of the machine tool seat around the first fulcrum.

In the above solution, preferably, the end of the lock pin is a conical head, the size of the conical head is matched with the tooth root of the gear, the material of the lock pin is wear-resistant hard metal, and the beneficial effect is that it provides a The wear-resistant lock pin increases its service life, and the conical head lock pin can effectively cooperate with the gear tooth root part, and the locking effect is better.

In the above solution, preferably, the pedal surface is provided with tooth-shaped protrusions, which has the beneficial effect of providing a non-slip pedal, so that the user will not accidentally step on the pedal due to slippage of the sole of the foot and the pedal.

In the above solution, preferably, the outside of the door panel is provided with a counterweight block, the counterweight block is semi-circular, made of metal, and is arranged in the upper position of the center of the door panel, and the beneficial effect is that: a door panel is provided. In a free state, the block can be deflected to one side around the second fulcrum, and the door panel can be automatically opened without the second pull rope through the counterweight block, which is convenient for manual pedaling.

The method of using a punch switch locking device as claimed in claim 1, the steps are as follows: 1. In the initial position, the protective cover is in an open state, and the outer door panel of the pedal cover is in a closed state. The plate is placed on the lower die surface. At this time, the edge of the plate is pressed on the pressing rod, and the pressing rod rotates counterclockwise around the first fulcrum after being pressed; ②. At this time, the other end of the pressing rod pulls the first pull rope, and the first pull rope is The upward pulling force, because the first stretch is wound on the first pulley, makes the first stretch pull the lock pin to move to the left, and the second spring compresses, so that the lock pin head is separated from the gear; 3. After the plate is placed, Slide the protective cover down to keep the protective cover in a closed state. At this time, there is no more force between the second pull rope and the door panel, and the door panel is rotated clockwise around the fulcrum under the influence of the gravity on one side of the counterweight block, so that the door panel is opened; ④. The door panel is opened After manually stepping on the pedal, the arc-shaped rack on the pedal slides with the gear. After stepping on the pedal, the pedal will rebound after the first spring force, and the punch will complete the punching work; Pull the second pull rope to make the door plate rotate counterclockwise around the fulcrum, close the door plate, take out the plate after stamping, the pressure rod is no longer under the pressure of the plate, the second spring extends to make the lock pin and the gear re-lock and lock, and the lock is locked. The pin slides to the right to pull the first pull rope, and the pressure rod resets the pressure rod under the pulling force of the first pull rope.

The beneficial effects of the present invention are as follows: the present invention provides a device for preventing a worker from stepping on a foot switch by mistake, the device can enable the worker to step on the foot switch after completing the preliminary work before stepping on it, and the door panel and the protective cover are provided on the pedal cover. The linkage allows workers to confirm that the protective cover is closed before stepping on it, which improves the safety during stamping and greatly reduces the incidence of safety accidents.

Description of drawings

FIG. 1 is a schematic diagram of the front view structure of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments: Referring to Figure 1, a punch switch locking device comprises a machine tool seat 1 and a lower die 2 arranged above the machine tool seat 1, and the lower die 2 is a To replace the mold, the lower mold 2 and the machine base 1 are connected by bolts.

Preferably, a pressing rod 3 is provided on the side of the lower mold 2, the pressing rod 3 is a right-angle rod, the material of the pressing rod 3 is preferably plastic, the upper end surface of the vertical section of the pressing rod 3 is a spherical surface, and the pressing rod 3 is a spherical surface. After the vertical section of the rod 3 passes through the machine base 1, its upper end surface is higher than the plane of the lower die 2, so that when the plate is placed on the lower die 2, the pressing rod 3 can be pressed by the plate. The upper part of the machine base 1 is preferably provided with a convenient A cavity in which the pressing rod 3 rotates and swings; the pressing rod 3 is provided with a first fulcrum 4, the first fulcrum 4 is preferably set in the middle of the transverse section of the pressing rod 3, and the first fulcrum 4 is rotatably provided on the machine bed 1, the first fulcrum 4 is preferably connected with the machine tool base 1 by a pin; the right end of the pressure rod 3 is connected with the locking device through the first pull rope 5, and the right end of the pressure rod 3 is preferably provided with a first pull rope for convenience. 5 through the small hole, the first pulling rope 5 is preferably a thin wire rope, a first pulley 6 is provided between the pressing rod 3 and the locking device, and the first pulley 6 is rolled on the machine tool base 1, The first pull rope 5 is wound around the lower semicircle of the first pulley 6 .

Preferably, the locking device includes a pedal 7, a pedal cover 8, a first spring 9, a second spring 10, a gear 11 and a locking pin 12. The surface of the pedal 7 is preferably provided with a tooth-shaped protrusion to prevent sliding during use. , the pedal 7 is rotatably arranged on the second fulcrum 13 at the bottom of the pedal cover 8, the pedal 7 and the second fulcrum 13 at the bottom of the pedal cover 8 are preferably connected by a pin, and grease is added after the pin is penetrated; the pedal 7. A first spring 9 is connected between the bottom surface of the pedal cover 8 and the bottom plate of the pedal cover 8. A gear 11 is provided on the side of the pedal cover 8 for rotation. The rack 19 and the pedal 7 are welded as a whole, and the left side of the gear 11 is provided with a lock pin 12. Preferably, the end of the lock pin 12 is a conical head, and the size of the conical head matches the tooth root of the gear 11. , the material of the lock pin 12 is wear-resistant hard metal; the lock pin 12 is connected to the first pull rope 5 after passing through the left hole of the pedal cover 8, and the lock pin 12 and the first pull rope 5 are preferably Riveting, the second spring 10 is sleeved on the lock pin 12 against the right side boss of the lock pin 12 and the left side plate of the pedal cover 8 respectively, the right side boss of the lock pin 12 and the lock pin 12 are integrally formed , a door closing device is provided on the right side of the pedal cover 8 .

Preferably, the door closing device includes a door panel 14 , a second pull rope 15 , a protective cover 16 and a second pulley 17 , and a counterweight 18 is provided on the outside of the door panel 14 . The counterweight 18 is semicircular and made of It is made of metal and is arranged at the upper center of the door panel 14. The counterweight 18 and the door panel 14 are preferably welded and formed. The lower end of the door panel 14 is rotated and arranged on the right end of the bottom plate of the pedal cover 8. One end of the rope 15, the other end of the second pulling rope 15 is connected to the protective cover 16 after the lower arc of the second pulley 17 is wound. 16 is slidably arranged above the machine tool base 1 , and the protective cover 16 and the machine tool base 1 are preferably slidably connected with slide rails.

Here's how it works or how it's used:

In the initial position, the protective cover 16 is in an open state, and the outer door panel 14 of the pedal cover 8 is in a closed state. When the plate is to be punched, the plate is placed on the surface of the lower die 2. At this time, the edge of the plate is pressed on the pressing rod After the rod 3 is under pressure, it rotates counterclockwise around the first fulcrum 4; at this time, the other end of the pressure rod 3 pulls the first pull rope 5, and the first pull rope 5 is pulled upward, because the first pull rope 5 is wound around the first pulley 6, so that the first pull rope 5 pulls the lock pin 12 to move to the left, and the second spring 10 compresses, so that the lock pin 12 head is disengaged from the gear 11; after the plate is placed, slide the protective cover 16 down to make the protective cover 16 is in the closed state. At this time, the second pull rope 15 and the door panel 14 are no longer under force, and the door panel 14 is rotated clockwise around the fulcrum under the influence of the gravity on the side of the counterweight 18, so that the door panel 14 is opened; after the door panel 14 is opened, manually step on the pedal 7 , the arc-shaped rack 19 on the pedal 7 slides with the gear 11. After stepping on the pedal 7, the pedal 7 is rebounded by the first spring force 9, and the punch press completes the punching work; open the protective cover 16 and make the protective cover 16 slide upward , the protective cover 16 pulls the second pull rope 15 to make the door panel 14 rotate counterclockwise around the fulcrum, close the door panel 14, take out the panel after punching, the pressure rod 3 is no longer under the pressure of the panel, the second spring 10 extends to make the lock pin 12 and the gear 11 are re-engaged and locked, and at the same time, the lock pin 12 slides to the right to pull the first pull rope 5 , and the pressure rod 3 resets the pressure rod 3 under the pulling force of the first pull rope 5 .

This device can cultivate workers' good safety awareness, and consciously and actively close the protective cover during each punching, avoiding unnecessary safety hazards and greatly improving the safety of the punching machine.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A punch switch locking device, comprising a machine tool seat (1) and a lower die (2) arranged above the machine tool seat (1), characterized in that a pressing rod (3) is provided on the side of the lower die (2), The pressing rod (3) is a right-angle rod, and the upper end surface of the pressing rod (3) is higher than the plane of the lower die (2) after the vertical section of the pressing rod (3) is passed through the machine base (1). There is a first fulcrum (4), the first fulcrum (4) is rotatably arranged on the machine base (1), and the right end of the pressing rod (3) is connected with the locking device through a first pulling rope (5). A first pulley (6) is arranged between the pressing rod (3) and the locking device, and the first pulling rope (5) is wound around the lower semicircle of the first pulley (6);

The locking device comprises a pedal (7), a pedal cover (8), a first spring (9), a second spring (10), a gear (11) and a locking pin (12). On the second fulcrum (13) at the bottom of the pedal cover (8), a first spring (9) is connected between the bottom surface of the pedal (7) and the bottom plate of the pedal cover (8). A gear (11), the pedal (7) is provided with a circular arc-shaped rack (19) matched with the gear (11), the left side of the gear (11) is provided with a lock pin (12), the lock The pin (12) passes through the left hole of the pedal cover (8) and is connected to the first pull rope (5). The second spring (10) is sleeved on the lock pin (12) and abuts against the lock pin (12) the right side boss and the left side plate of the pedal cover (8), the right side of the pedal cover (8) is provided with a door closing device;

The door closing device comprises a door panel (14), a second pulling rope (15), a protective cover (16) and a second pulley (17). The upper end of the door panel (14) is connected with one end of the second pulling rope (15), and the other end of the second pulling rope (15) is connected to the protective cover (16) after being wound around the lower arc of the second pulley (17). The protective cover (16) is slidably arranged above the machine tool seat (1).
A punch switch locking device according to claim 1, characterized in that: the pressing rod (3) is a plastic rod, the upper end surface of the vertical section of the pressing rod (3) is a spherical surface, and the machine tool seat ( 1) The upper part is provided with a cavity that facilitates the rotation and swing of the pressing rod (3).
A punch switch locking device according to claim 1, characterized in that: the end of the lock pin (12) is a conical head, and the size of the conical head is matched with the tooth root of the gear (11), and the lock The pin (12) is made of wear-resistant hard metal.
A punch switch locking device according to claim 1, characterized in that a tooth-shaped protrusion is provided on the surface of the pedal (7).
A punch switch locking device according to claim 1, characterized in that: a counterweight (18) is provided on the outer side of the door panel (14), and the counterweight (18) is semicircular and made of Metal, which is arranged on the upper center of the door panel (14).
A method of using a punch switch locking device as claimed in claim 1, characterized in that: the steps are as follows: 1. In the initial position, the protective cover is in an open state, and the outer door panel of the pedal cover is in a closed state. When the parts are pressed, place the plate on the lower die surface, at this time the edge of the plate is pressed on the pressure rod, and the pressure rod rotates counterclockwise around the first fulcrum after being pressed; ② At this time, the other end of the pressure rod pulls the first rope, the A pull rope is pulled upward, because the first stretch is wound on the first pulley, so that the first stretch pulls the lock pin to the left, and the second spring compresses, so that the lock pin head is separated from the gear; ③, the plate After the placement is completed, slide the protective cover down to keep the protective cover in a closed state. At this time, there is no more force between the second pull rope and the door panel, and the door panel is affected by the gravity on the side of the counterweight and rotates clockwise around the fulcrum to open the door panel; ④. Manually step on the pedal after the door panel is opened, and the arc-shaped rack on the pedal slides with the gear. After stepping on the pedal, the pedal is rebounded by the first spring force, and the punching machine completes the punching work; ⑤ Open the protective cover and make the protective cover upward Sliding, the protective cover pulls the second pull rope to make the door plate rotate counterclockwise around the fulcrum, close the door plate, take out the plate after stamping, the pressure rod is no longer under the pressure of the plate, the second spring extends to make the lock pin and the gear re-lock the lock At the same time, the lock pin slides to the right to pull the first pull rope, and the pressure rod resets the pressure rod under the pulling force of the first pull rope.