CN203496319U

CN203496319U - Safety device of press machine

Info

Publication number: CN203496319U
Application number: CN201320573948.7U
Authority: CN
Inventors: 顾强
Original assignee: Hefei Kaibang Motor Co Ltd
Current assignee: Hefei Kaibang Motor Co Ltd
Priority date: 2013-09-13
Filing date: 2013-09-13
Publication date: 2014-03-26
Anticipated expiration: 2023-09-13

Abstract

The utility model belongs to an auxiliary mechanism of a stamping apparatus, and particularly provides a safety device of a press machine. A frame includes an upper crossbeam and a lower base, columns are arranged between the upper crossbeam and the lower base, a movable crossbeam is arranged on the columns between the upper crossbeam and the lower base, a lower die holder is arranged on the lower base, an upper pressing die is arranged on the lower plate surface of the movable crossbeam, a pneumatic power mechanism is connected between the upper crossbeam and the movable crossbeam, a pneumatic spring is arranged between the frame and the movable crossbeam, when the movable crossbeam performs rising and resetting motions, the pneumatic spring is started and supplies upward elastic forces to support the movable crossbeam to prevent the movable crossbeam from falling down, thereby preventing operators from being injured. Therefore, the safety of the press machine is improved.

Description

The safety device of forcing press

Technical field

The utility model belongs to the auxiliary body of pressing equipment, is specifically a kind of safety device of forcing press.

Background technology

The forcing press of punch forming or punching press assembling is very general in industrial and mining enterprises, in actual production, the press structure of the processing of finding or assembling use is fairly simple, punching press power source is generally selected cylinder, forcing press totally comprises entablature and the lower support being arranged in workbench or frame, the column of some guiding use is set on four angles of the plate face of lower support, the top of column arranges entablature, between entablature and lower support, moved cross beam is set, moved cross beam lower panel face arranges forcing press top die, starting pressure machine, utilization is arranged on the air cylinder driven moved cross beam top die of entablature along column to pressing down, thereby punching press or assemble to be processed.The piston rod of the cylinder of forcing press connected with being connected by Connection Block is set on moved cross beam of moved cross beam, and the Connection Block correspondence that is threaded into of the rod end setting of piston rod arranges in screwed hole.Strenuous exercise due to the cylinder of forcing press, forcing press after long-term work because material structure is tired, the position, piston rod end of Connection Block and cylinder is because be provided with screw thread, because of stress, too concentrate and rupture possibly, moved cross beam is in the process rising or under the idle state of forcing press, moved cross beam is together with the unexpected downward landing of the pressure head arranging on moved cross beam, and this is breakneck concerning operator.

Utility model content

The purpose of this utility model is to provide a kind of safety device to improve the processing safety of forcing press, prevents that operating personnel from coming to harm.

For achieving the above object, the technical solution adopted in the utility model is: a kind of safety device of forcing press, comprise entablature and lower support, there is column between the two, between entablature and lower support, on column, moved cross beam is being set, die shoe is arranged on lower support, top die is arranged on the lower face of moved cross beam, between entablature and moved cross beam, be connected with pneumatic power mechanism, between lower support and moved cross beam, be provided with nitrogen spring, nitrogen spring provides resilient support upwards to play moved cross beam.

There is following technique effect in the utility model: the elastic constant feature of utilizing nitrogen spring self, between lower support and moved cross beam, nitrogen spring is set, during moved cross beam reset lifting, nitrogen spring starts support and plays moved cross beam, prevent the fracture due to moved cross beam and pneumatic power mechanism link position place, cause unexpected the falling of top die on moved cross beam and moved cross beam, operator is shone into injury, so just improved the security that forcing press uses.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the enlarged drawing of C in Fig. 1.

The specific embodiment

In conjunction with Fig. 1 and Fig. 2, the utility model is done further to understand.

A kind of safety device of forcing press, comprise entablature 10 and lower support 20, there is column 30 between the two, between entablature 10 and lower support 20, on column 30, moved cross beam 40 is being set, die shoe A is arranged on lower support 20, top die B is arranged on the lower face of moved cross beam 40, between entablature 10 and moved cross beam 40, be connected with pneumatic power mechanism, described pneumatic power mechanism is pneumatic cylinder, piston rod and the moved cross beam of pneumatic cylinder are connected and fixed, for forcing press provides power, upper bolster on driving moved cross beam 40 is to pressing down, between lower support 20 and moved cross beam 40, be provided with nitrogen spring 50, nitrogen spring 50 provides resilient support upwards to play moved cross beam 40, prevent the fracture due to moved cross beam 40Yu pneumatic power mechanism's link position place, cause unexpected the falling of top die B on moved cross beam 10 and moved cross beam 10, operator is shone into injury, improve the safety in utilization of forcing press.

Further, as preferred version of the present utility model, in conjunction with Fig. 1, the vertical setting of plate face of the length direction of described nitrogen spring 50 and moved cross beam 40 and lower support 20, thereby guaranteed the direction of nitrogen spring 50 elastic forces and the plate face of moved cross beam 40 vertical.

Further, the elastic force summation of described nitrogen spring 50 is more than or equal to the weight summation of described moved cross beam 40 and moved cross beam 40 annexes, as preferred version of the present utility model, the elastic force summation of nitrogen spring 50 is a bit larger tham the weight summation of moved cross beam 40 and moved cross beam annex, can either reach the object that support plays moved cross beam 40 like this, can reduce again because forcing press is when pressing down, outside the pneumatic power mechanism amount of exports of forcing press, make every effort to overcome the elastic force that takes nitrogen spring 50, and the impact that build-up of pressure machine downforce reduces, in fact, forcing press top die B is when pressing down, the weight of moved cross beam 40 and annex has overcome the elastic force that the major part of nitrogen spring 50 makes progress, forcing press pneumatic power mechanism only need overcome a part of power that nitrogen is very little, downforce impact on forcing press is very little.

Further, the quantity that nitrogen spring 50 is set and position according to the size reasonable of forcing press moved cross beam 40 and moved cross beam 40 weights of attachment, guarantee symmetrical layout nitrogen spring 50, the suffered supporting force of each nitrogen spring 50 uniform support.

Finally, shown in Fig. 2, design feature due to nitrogen spring 50, guarantee that the length of nitrogen spring 50 and the stroke of forcing press conform to, described nitrogen spring 50 is at the plate face with lower support 20 and moved cross beam 40 fixedly time, by the plate face at lower support 20 and moved cross beam 40, tighten transition bracket 60, the plate face that overhangs of transition bracket 60 arranges gudgeon 61, gudgeon 61 is fastening with the end of nitrogen spring 50, object makes nitrogen spring 50 effectively to fix exactly, by self length of transition bracket 60, the length of nitrogen spring 50 can conform to the stroke of forcing press.

Claims

1. the safety device of a forcing press, comprise entablature (10) and lower support (20), there is column (30) between the two, be positioned between entablature (10) and lower support (20), on column (30), moved cross beam (40) be set, die shoe A is arranged on lower support (20), top die B is arranged on the lower face of moved cross beam (40), between entablature (10) and moved cross beam (40), be connected with pneumatic power mechanism, it is characterized in that: between lower support (20) and moved cross beam (40), be provided with nitrogen spring (50), nitrogen spring (50) provides resilient support upwards to play moved cross beam (40).

2. press machine safety device according to claim 1, is characterized in that: the vertical setting of plate face of the length direction of described nitrogen spring (50) and moved cross beam (40) and lower support (20).

3. press machine safety device according to claim 1 and 2, is characterized in that: the elastic force summation of described nitrogen spring (50) is more than or equal to the weight summation of described moved cross beam (40) and moved cross beam (40) annex.