CN201907221U - Overload protective device of numerical control punch - Google Patents
Overload protective device of numerical control punch Download PDFInfo
- Publication number
- CN201907221U CN201907221U CN 201020657493 CN201020657493U CN201907221U CN 201907221 U CN201907221 U CN 201907221U CN 201020657493 CN201020657493 CN 201020657493 CN 201020657493 U CN201020657493 U CN 201020657493U CN 201907221 U CN201907221 U CN 201907221U
- Authority
- CN
- China
- Prior art keywords
- shearing
- seat
- numerical control
- protective device
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Presses (AREA)
Abstract
The utility model relates to an overload protective device of a numerical control punch in the field of presses. The overload protective device comprises a slider connecting seat and a striking head, a shearing seat is fixed at the lower end of the slider connecting seat, the lower end of the shearing seat is connected with a shearing blade mounting seat, a shearing blade is arranged between combining surfaces of the shearing seat and the shearing blade mounting seat, a big end up circular step hole is arranged at the center of the shearing blade mounting seat, a circular hole with the diameter equal to that of a large-diameter section of the step hole is arranged at the center of the shearing seat, and the striking head is fittingly arranged in the step hole and attached to the lower side of the shearing blade. When in overload, the shearing blade is shorn off, and the striking head retreats to the circular hole at the center of the shearing seat so as to avoid damaging dies and transmission components of a press. The overload protective device realizes shearing breaking type overload protection. Compared with the prior art, the overload protective device is simple in structure, low in manufacturing cost, reliable in performance, convenient in installation and use and suitable for installation and use of numerical control punches and other presses.
Description
Technical field
The utility model relates to a kind of punch press, particularly a kind of safety guard of punch press.
Background technology
In the prior art; numerical control press in use; because die point rust; material thickness increases; it is incorrect that mould is installed adjustment; the polylith of punching press simultaneously plates etc. are all multifactor; overload when making forcing press work; thereby cause the destruction of parts such as press crankshaft, connecting rod, mould and even main driving motor, therefore, designed overload protection arrangement at the attacking head position of numerical control press; when numerical control press transships; protective device is had an effect, and makes overload power must not pass to other important spare parts, has avoided important spare part to go to pot and the loss that brings.
At present, the overload protection arrangement in the press mainly contains following a few class: the pressure overload protection device of active force and limiting drive train system are gone up the torque overload protective device of driving torque on the restriction slide block.Pressure overload protection device can be divided into failure by shear formula overload protection arrangement and hydraulic pressure overload protective device again.The torque overload protective device that the limiting drive train system is gone up driving torque mainly is that the shaft coupling with moment restriction is installed between motor and power transmission shaft; though there is special manufacturing firm to make; but manufacturing cost is higher; and be directly installed on forcing press on the bent axle for motor; this kind device can't use, moreover numerical control press is mainly used in punching, blanking, shallow recessing, shallow drawing etc.; impulse stroke is short, the suitable pressure overload protection device that adopts.And the fluid pressure type overload protection arrangement needs a cover circuit apparatus for hydraulic such as motor, oil pump, magnetic valve, check valve, unloader, overflow valve, and needs enough installing spaces, also may have hidden danger such as hydraulic fluid leak.The numerical control press functional part is more, compact conformation, and attacking head part installing space is limited, is not suitable for installing the fluid pressure type overload protection arrangement.
The utility model content
The purpose of this utility model provides a kind of numerical control press overload protection arrangement, makes its compact conformation, is convenient to be connected and installed, and can avoids the forcing press overload accurately and effectively.
The purpose of this utility model is achieved in that the numerical control press overload protection arrangement; comprise slide block Connection Block and attacking head; described slide block Connection Block lower end is fixed with Cut Block; the Cut Block lower end is connected with shears the sheet mount pad; be provided with the shearing sheet between the faying face of Cut Block and shearing sheet mount pad; shear sheet mount pad center and be provided with up big and down small circular shoulder hole; the Cut Block center is provided with the isometrical circular hole of big footpath section with described shoulder hole, and described attacking head is equipped with in described shoulder hole and abuts in shears the sheet downside.
During the utility model work; it is descending that the toggle of forcing press drives attacking head; realize punch process; the reaction force acts of workpiece and mould is being sheared on the sheet; when overload takes place when; shearing sheet is cut off; attacking head can move back in the circular hole at Cut Block center, avoids the damage of mould and forcing press drive disk assembly, the invention belongs to failure by shear formula overload protection; compared with prior art; it is simple in structure, low cost of manufacture, dependable performance; easy to install, be suitable for numerical control press and other forcing press is installed and used.
As further improvement of the utility model, radially be provided with the inductive switch that is used to provide alarm signal on the described Cut Block.After the shearing sheet was cut off, inductive switch can be sensed and shear sheet or attacking head, thereby sends signal, gives control system, realizes actions such as shutdown, warning.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, 1 shears the sheet mount pad, and 2 shear sheet, 3 Cut Blocks, 4 slide block Connection Blocks, 5 inductive switches, 6 attacking heads.
The specific embodiment
As shown in Figure 1, be the numerical control press overload protection arrangement, its structure mainly includes slide block Connection Block 4 and attacking head 6, slide block Connection Block 4 lower ends are fixed with Cut Block 3, Cut Block 3 lower ends are connected with shears sheet mount pad 1, be provided with between the faying face of Cut Block 3 and shearing sheet mount pad 1 and shear sheet 2, shear sheet mount pad 1 center and be provided with up big and down small circular shoulder hole, Cut Block 3 centers are provided with the isometrical circular hole of big footpath section with described shoulder hole, and attacking head 6 is equipped with in described shoulder hole and abuts in shears sheet 2 downsides; On described Cut Block 3, radially be provided with the inductive switch 5 that is used to provide alarm signal.
When forcing press transships, shear sheet 2 with regard to failure by shear, so attacking head 6 produces relative displacement with Cut Block 3, do not transmit flush shear force, make the moment of linkage no longer increase, can protect the transmission system of mould and lathe.The size of shearing force is by the diameter of attacking head 6, the shear strength decision of shearing the thickness of sheet 2 and shearing sheet 2.Make the material of shearing sheet and need make shear strength test, after the shear strength of manufactured materials is determined in test,, determine to shear the thickness of sheet 2 again according to the destructive power of shearing sheet.Shear the shearing sheet that needs more to renew after sheet destroys and just can rework, the signal of inductive switch 5 passes to the forcing press control system, realizes shutting down and point out the forcing press shearing sheet that overload need more renew.
Claims (2)
1. numerical control press overload protection arrangement; comprise slide block Connection Block and attacking head; it is characterized in that: described slide block Connection Block lower end is fixed with Cut Block; the Cut Block lower end is connected with shears the sheet mount pad; be provided with the shearing sheet between the faying face of Cut Block and shearing sheet mount pad; shear sheet mount pad center and be provided with up big and down small circular shoulder hole; the Cut Block center is provided with the isometrical circular hole of big footpath section with described shoulder hole, and described attacking head is equipped with in described shoulder hole and abuts in shears the sheet downside.
2. numerical control press overload protection arrangement according to claim 1 is characterized in that: radially be provided with the inductive switch that is used to provide alarm signal on the described Cut Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020657493 CN201907221U (en) | 2010-12-09 | 2010-12-09 | Overload protective device of numerical control punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020657493 CN201907221U (en) | 2010-12-09 | 2010-12-09 | Overload protective device of numerical control punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907221U true CN201907221U (en) | 2011-07-27 |
Family
ID=44299431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020657493 Expired - Fee Related CN201907221U (en) | 2010-12-09 | 2010-12-09 | Overload protective device of numerical control punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437743A (en) * | 2013-07-30 | 2013-12-11 | 西安物华巨能爆破器材有限责任公司 | Shear-type pressure actuating mechanism used for pressure initiation device and reverse circulation valve |
| CN109127837A (en) * | 2018-09-05 | 2019-01-04 | 芜湖福祥模具科技有限公司 | A kind of weight die device of accurate positionin |
-
2010
- 2010-12-09 CN CN 201020657493 patent/CN201907221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437743A (en) * | 2013-07-30 | 2013-12-11 | 西安物华巨能爆破器材有限责任公司 | Shear-type pressure actuating mechanism used for pressure initiation device and reverse circulation valve |
| CN109127837A (en) * | 2018-09-05 | 2019-01-04 | 芜湖福祥模具科技有限公司 | A kind of weight die device of accurate positionin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20191209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |