CN211614119U

CN211614119U - Human body protector for machining

Info

Publication number: CN211614119U
Application number: CN201921965611.4U
Authority: CN
Inventors: 郝晓芳
Original assignee: Xingtai Jimao Precision Machinery Co ltd
Current assignee: Xingtai Jimao Precision Machinery Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-10-02
Anticipated expiration: 2029-11-14

Abstract

The utility model relates to a machine tool technical field especially relates to a human body protector is used in machining. Including cover half (4) and movable mould (6) including the punching press lathe, install electro-magnet (1) and position switch K1(2) in cover half (4), the break-make of its power of normally open contact control that contactor KM1(101) is passed through in electro-magnet (1), travel switch K2(3) of the closed normally closed contact of time delay are installed to movable mould (6) downside, travel switch K2(3) are established ties with the control coil of contactor KM1(101), position switch K1(2) are parallelly connected with the normally open contact of contactor KM1(101) and are established ties with the coil of contactor KM1(101), the position of position switch K1(2) is adjustable through the dovetail. The electromagnet and the machined blank can generate attraction force to limit the blank to generate displacement, the electromagnet can generate attraction force with the blanking, the blanking is prevented from splashing to a certain extent, and the operating efficiency and the safety of the machine tool are improved.

Description

Human body protector for machining

Technical Field

The utility model relates to a machine tool technical field especially relates to a human body protector is used in machining.

Background

The punch press is very common in a machine tool of a factory machine, because the operation of an old punch press requires a worker to closely contact a working part of the machine tool to carry out feeding and discharging and position adjustment of a blank, the vibration generated when a crankshaft of the punch press acts easily enables the adjusted blank to be displaced on a fixed die, the worker probably readjusts the position of the blank at the moment, the worker avoids the occurrence of danger easily caused in time, the operation is very dangerous, workpieces processed by the punch press are various, splashing can be generated during blanking of some parts, and surrounding workers are easily injured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem, it is not enough to the technique that exists to the aforesaid, a person protector is used in machining is provided, adopt and set up electro-magnet and position switch in the cover half, after the blank reachs the requirement position on the cover half, position switch control electro-magnet circular telegram, produce the attraction between electro-magnet and the blank this moment and can restrict the blank because the lathe vibrations produce the displacement, and the electro-magnet can produce the attraction with the blanking, prevented splashing of blanking to a certain extent, the operating efficiency and the security of lathe have been improved.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a personal protector is used in machining, includes cover half and the movable mould of punching press lathe, its characterized in that: install electro-magnet and position switch K1 in the cover half, the break-make of its power is controlled through contactor KM 1's normally open contact to the electro-magnet, travel switch K2 of the closed normally closed contact of delay is installed to the movable mould downside, travel switch K2 establishes ties with contactor KM 1's control coil, position switch K1 is parallelly connected with contactor KM 1's normally open contact and establishes ties with contactor KM1 coil, position switch K1's bottom surface is fixed with the trapezoidal piece, the cover half upper surface is provided with the dovetail, the trapezoidal piece inserts in the dovetail, position switch K1 still is provided with holding screw. The blank reaches the designated position on the fixed die, then the position switch K1 is triggered to switch on the electromagnet, the blank is attracted by the electromagnetic force and cannot be displaced due to the vibration of a machine tool, when the movable die is pressed down to the position and then completes the stamping action, the time-delay closed normally-closed travel switch K2 on the movable die is triggered to enable the travel switch K2 to be switched off and closed in a time-delay mode, at the moment, the electromagnet is powered off, the blank is not attracted by the electromagnet any more, and time is provided for a worker to remove. The position switch K1 can slide along the dovetail groove in the fixed die and be fixed, and can be suitable for the blank processing that has different dimensional requirements.

Further optimizing the technical scheme, the normally open contact of the contactor KM1 is connected in series with the control coil of the movable die pressing action control contactor KM2 and the press pedal switch of the punch press. When the blank is not attracted by the electromagnet, the pressing action of the punch press can not be started.

Further optimize this technical scheme, the electro-magnet is the annular, is located the die cavity outside of cover half. Set up to the annular can be suitable for the blank and send into the cover half at different angles and process to the suction that annular electromagnet 1 produced can prevent that the blanking of punch press from producing because the impact force of punch press action from splashing, causes personnel injury on every side.

Further optimize this technical scheme, the electro-magnet is two, is located the both sides of cover half die cavity respectively. The arrangement of two electromagnets provides system reliability and does not significantly affect the use of the machine tool when one electromagnet fails.

Further optimizing the technical scheme, the position switch K1 is a travel switch or a proximity switch. The travel switch has high working reliability, and the proximity switch has higher sensitivity.

Drawings

Fig. 1 is a view of an installation layout of a personal protection device for machining.

Fig. 2 is a wiring diagram of an electrical appliance of a personal protection device for machining.

FIG. 3 is a schematic view of a fixed die dovetail slot of a personal guard for machining.

Figure 4 is a trapezoidal block of a personal guard position sensor arrangement for machining.

Fig. 5 is a schematic view of a fixed mold of an embodiment 1 of the personal guard for machining.

Fig. 6 is a schematic view of an embodiment 2 of a fixed mold of a personal protection device for machining.

In the figure: 1. an electromagnet; 2. a position switch K1; 3. a travel switch K2; 4. fixing a mold; 5. a cavity; 6. Moving the mold; 7. contactor KM 2; 101. contactor KM 1; 201. a trapezoidal block; 202. tightening the screw; 401. A dovetail groove; 702. a foot switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: referring to fig. 1-4, a personal protection device for machining comprises a fixed die 4 and a movable die 6 of a punching machine tool, and is characterized in that: the fixed die 4 is provided with an electromagnet 1 and a position switch K1(2), and the position switch K1(2) can be a travel switch or a proximity switch. The electromagnet 1 controls the on-off of a power supply of the electromagnet 1 through a normally open contact of a contactor KM1(101), when a blank contacts a position switch K1(2) during blank feeding, the electromagnet 1 is attracted by the electromagnet 1 and is difficult to move, a travel switch K2(3) for delaying to close a normally closed contact is installed on the lower side of the movable mould 6, the travel switch K2(3) is connected with a control coil of the contactor KM1(101) in series, the position switch K1(2) is connected with the normally open contact of the contactor KM1(101) in parallel and connected with a coil of the contactor KM1(101) in series, the position switch K1(2) is connected with the normally open contact of the contactor KM1(101) in parallel to realize the self-locking of the contactor KM1(101), so that the electromagnet 1 works reliably and stably without vibration interference, a trapezoidal block 201 is fixed on the bottom surface of the position switch K1(2), a trapezoidal block 401 is arranged on the upper, the position switch K1(2) can slide along the dovetail groove 401 through the trapezoid block 201, and after the position switch K1(2) is adjusted to a proper position, the screw 202 on the position switch K1(2) can be screwed down to position the position switch K1 (2). The normally open contact of the contactor KM1(101) is connected in series with the control coil of the movable die 6 pressing action control contactor KM2(7) and the press pressing foot switch 702 of the punch, when the electromagnet 1 is not electrified, namely, when the blank is not reliably positioned, the punch cannot act, and the safety of workers is ensured.

As shown in fig. 5: the electromagnet 1 in the fixed die 4 is annular and can surround the cavity 5 in the fixed die 4, and when the embodiment is adopted, the suction force generated by the annular electromagnet 1 can prevent the blanking of the punch from splashing due to the impact force generated by the action of the punch so as to cause the injury of surrounding personnel.

As shown in fig. 6: the number of the electromagnets 1 can be two as the second embodiment of the patent, and the electromagnets 1 are respectively positioned at two sides of the cavity 5 in the fixed die 4, so that the use of a machine tool can not be seriously influenced when one electromagnet 1 fails.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a personal protector is used in machining, includes cover half (4) and movable mould (6) of punching press lathe, its characterized in that: install electro-magnet (1) and position switch K1(2) in cover half (4), the break-make of its power of normally open contact control that contactor KM1(101) is passed through in electro-magnet (1), travel switch K2(3) of the normally closed contact of delay closure are installed to movable mould (6) downside, travel switch K2(3) and the control coil of contactor KM1(101) are established ties, position switch K1(2) are parallelly connected and are established ties with the coil of contactor KM1(101) with the normally open contact of contactor KM1(101), the bottom surface of position switch K1(2) is fixed with trapezoidal piece (201), cover half (4) upper surface is provided with dovetail (401), trapezoidal piece (201) are inserted in dovetail (401), position switch K1(2) still are provided with holding screw (202).

2. A human body guard for machining according to claim 1, characterized in that: the normally open contact of the contactor KM1(101) is connected in series with a control coil of a movable die (6) pressing action control contactor KM2(7) and a punch press pressing foot switch (702).

3. A personal guard for machining according to claim 1 or 2, characterized in that: the electromagnet (1) is annular and is positioned outside the cavity (5) of the fixed die (4).

4. A personal guard for machining according to claim 1 or 2, characterized in that: the two electromagnets (1) are respectively positioned at two sides of the cavity (5) of the fixed die (4).

5. A personal guard for machining according to claim 1 or 2, characterized in that: the position switch K1(2) is a travel switch or a proximity switch.