CN101890462B - Closed punch overload protection device - Google Patents
Closed punch overload protection device Download PDFInfo
- Publication number
- CN101890462B CN101890462B CN2010102331053A CN201010233105A CN101890462B CN 101890462 B CN101890462 B CN 101890462B CN 2010102331053 A CN2010102331053 A CN 2010102331053A CN 201010233105 A CN201010233105 A CN 201010233105A CN 101890462 B CN101890462 B CN 101890462B
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- China
- Prior art keywords
- fixed
- holder
- connecting rod
- overload
- protection device
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- Expired - Fee Related
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Abstract
The invention discloses a closed punch overload protection device, which comprises a first fixed seat and an overload detection mechanism, wherein the first fixed seat and the overload detection mechanism are fixed on a rack; one end of the overload detection mechanism is arranged on the first fixed seat in a pivot mode, and the other end is fixed on the rack of a closed punch; the overload detection mechanism comprises a connection shaft and an inverted T-type connection rod; one end of the connection shaft is fixed on a second fixed seat, and the other end is fixed with a connection rod seat; the middle position of the T-type connection rod is arranged on the first fixed seat in a pivot mode through a pivot; one end of the cross bar of the T-type connection rod is hinged with the connection rod seat; the tail end of the vertical bar of the T-type connection rod is provided with a close salient point; the first fixed seat is provided with a close switch matched with the close salient point; and the first fixed seat is also provided with a deformation detecting and displaying instrument which is connected with the overload detection mechanism. The invention has high sensitivity, is practical and convenient, and has low maintenance cost and the like.
Description
Technical field
The present invention relates to the pressing equipment field, especially relate to a kind of closed punch overload protection device.
Background technology
Traditional dynamo-electric punch press is to utilize the driven by motor flywheel to rotate; Come driven punch vertically to move up and down through the mode of flywheel rotation and inertial guidance and accomplish press work; The pressure excess load of punch press drift is recurrent thing; Because caused danger of excess load and negative effect also are conspicuous, gently then cause stamping material to scrap, heavy then results in machines is damaged.Therefore; Overload protection how to realize punch press effectively just becomes a difficult problem of pendulum in face of vast producer, and a kind of closed punch overload protection device provided by the present invention is exactly a kind of device that punch press shields when the excess load punching press in use occurring.
Summary of the invention
To the problems referred to above, the object of the present invention is to provide a kind of closed punch overload protection device that can address the above problem.
The technical scheme that the present invention is adopted for its technical problem of solution is:
A kind of closed punch overload protection device is characterized in that comprising: be fixed on first holder and overload testing agency on the frame, said overload testing agency one end is hubbed on first holder, and the other end is fixed on the frame of closed punch.
Further improvement as such scheme; Said overload testing agency comprises a connecting axle and an inverted T type connecting rod, and an end of connecting axle is fixed on second holder, and the other end is fixed with connecting rod base; The middle part of said T type connecting rod is hubbed on first holder through pivot; One end and the connecting rod base of T type connecting rod cross bar are hinged, and the end of T type connecting rod montant is provided with proximity bump, on said first holder proximity switch that cooperates with proximity bump is installed; Proximity switch is installed on the proximity switch fixed head, and said proximity switch fixed head is fixed with first holder through giving as security lid.
Further, on first holder enclosing cover is installed.
Further, said proximity bump is made up of the screw rod that is fixed on the nut on the T type connecting rod montant and be connected with nut thread.
In addition, the deformation that is connected with overload testing agency also is installed on said first holder and detects display instrument.
The invention has the beneficial effects as follows: the present invention is as a kind of closed punch overload protection device; Because the overload testing agency in the device can detect the variation of external load in real time, exactly; And detect display instrument through deformation the size conversion of external load is become the readable data form; Make operating personnel can in time grasp the situation of change of external load, and after detecting external load and reaching dangerous warning value, device can break off proximity switch again voluntarily; Cut off the electricity supply, and then machinery shuts down.Therefore, make punch press security in use improve greatly on the one hand; On the other hand, reduced owing to the damage that lacks unnecessary loss such as stamping material scrappage height that protective device causes and machine; In addition, this invention also has advantages such as highly sensitive, easy to use, that maintenance cost is low.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified:
Fig. 1 is a cross-sectional view of the present invention;
Fig. 2 is a side structure sketch map of the present invention.
The specific embodiment
With reference to Fig. 1, Fig. 2; A kind of closed punch overload protection device; Comprise first holder 1 and overload testing agency 3 that are fixed on the frame, said overload testing agency 3 one ends are hubbed on first holder 1, and the other end is fixed on the frame of closed punch.
As depicted in figs. 1 and 2; As the preferred embodiment of the present invention; Said overload testing agency 3 comprises a connecting axle 32 and an inverted T type connecting rod 36, and an end of connecting axle 32 is fixed on second holder 31, and the other end is fixed with connecting rod base 33; The middle part of said T type connecting rod 36 is hubbed on first holder 1 through pivot 34; One end and the connecting rod base 33 of T type connecting rod 36 cross bars are hinged, and the end of T type connecting rod 36 montants is provided with proximity bump 35, on said first holder 1 proximity switch that cooperates with proximity bump 35 are installed; Proximity switch is installed on the proximity switch fixed head 11, and it is fixing that said proximity switch fixed head 11 covers 12 and first holder 1 through signature.
As depicted in figs. 1 and 2; Load when excessive when the drift of punch press, micro-displacement just can take place in the connecting axle 32 of overload testing agency 3, and the micro-displacement of connecting axle 32 causes T type connecting rod 36 around pivot 34 rotations; Amplification through T type connecting rod 36; The micro-displacement of connecting axle 32 can make the corresponding angle of connecting rod 36 rotation, and the anglec of rotation can detect display instrument 13 through deformation again and show with the form of readable data, has therefore just played the effect of accurate monitoring.
One enclosing cover 2 that shields is installed on first holder 1, and said proximity bump 35 is made up of the screw rod that is fixed on the nut on T type connecting rod 36 montants and be connected with nut thread.
In addition, the deformation that is connected with overload testing agency 3 also is installed on said first holder 1 and detects display instrument 13.
As shown in Figure 1, after outside drift load reached dangerous warning value, connecting axle 32 can rotate to maximum rated angle by drivening rod 36; At this moment; Being positioned at the terminal proximity bump of T type connecting rod 36 montants 35 can contact with the proximity switch on the proximity switch fixed head 11, and then overload protection device can reach the dangerous state of alert and cut-off switch is cut off the electricity supply because detect; Punch press is quit work, promptly reached the effect of dangerous warning protection.In addition, can the deformation that external load convert the readable data form to be detected display instrument 13, so the operator can monitor the load condition of punch press drift real-time and accurately, further play warning function owing to also be provided with on the device.Need further be pointed out that; Because above-mentioned proximity bump 35 is made up of adjustable screw and screw rod; Therefore can regulate the distance between proximity bump 35 and the proximity switch according to the actual needs of punch press; Be the peak load warning value, so just make sensitivity of the present invention and usage range all improve greatly.
More than preferable enforcement of the present invention is specified; Certainly; The present invention can also adopt the form different with above-mentioned embodiment; Those of ordinary skill in the art should belong in protection scope of the present invention conversion of under the prerequisite of spirit of the present invention, being done that is equal to or corresponding the change.
Claims (4)
1. closed punch overload protection device; It is characterized in that comprising: be fixed on first holder (1) and overload testing agency (3) on the frame; Said overload testing agency (3) one ends are hubbed on first holder (1), and the other end is fixed on the frame of closed punch, and said overload testing agency (3) comprises a connecting axle (32) and an inverted T type connecting rod (36); One end of connecting axle (32) is fixed on second holder (31); The other end is fixed with connecting rod base (33), and the middle part of said T type connecting rod (36) is hubbed on first holder (1) through pivot (34), and an end and the connecting rod base (33) of T type connecting rod (36) cross bar are hinged; The end of T type connecting rod (36) montant is provided with proximity bump (35); The proximity switch that cooperates with proximity bump (35) is installed on said first holder (1), and proximity switch is installed on the proximity switch fixed head (11), and said proximity switch fixed head (11) is fixing with first holder (1) through giving as security lid (12).
2. a kind of closed punch overload protection device according to claim 1 is characterized in that: an enclosing cover (2) is installed on first holder (1).
3. a kind of closed punch overload protection device according to claim 1 is characterized in that: said proximity bump (35) is made up of the screw rod that is fixed on the nut on T type connecting rod (36) montant and be connected with nut thread.
4. according to claim 1 or 2 or 3 described a kind of closed punch overload protection devices, it is characterized in that: the deformation that is connected with overload testing agency (3) also is installed on said first holder (1) detects display instrument (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102331053A CN101890462B (en) | 2010-07-20 | 2010-07-20 | Closed punch overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102331053A CN101890462B (en) | 2010-07-20 | 2010-07-20 | Closed punch overload protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101890462A CN101890462A (en) | 2010-11-24 |
| CN101890462B true CN101890462B (en) | 2012-11-21 |
Family
ID=43099896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102331053A Expired - Fee Related CN101890462B (en) | 2010-07-20 | 2010-07-20 | Closed punch overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101890462B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD239360A1 (en) * | 1985-06-20 | 1986-09-24 | Warnke Umformtech Veb K | OVERLOAD PROTECTION FOR THE ADJUSTMENT MOVEMENT OF THE TRANSFER PRESSING GRIPPERS |
| CN101518808B (en) * | 2009-04-09 | 2010-07-28 | 高尔荣 | Overload protective device of punch |
| CN201462377U (en) * | 2009-06-10 | 2010-05-12 | 李明 | Overload protection device of press machine |
| CN201783596U (en) * | 2010-07-20 | 2011-04-06 | 中山市胜龙锻压机械有限公司 | Overload protection device of closed type punching machine |
-
2010
- 2010-07-20 CN CN2010102331053A patent/CN101890462B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101890462A (en) | 2010-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130720 |