CN105234336A - Ejection safety mechanism for forging press - Google Patents
Ejection safety mechanism for forging press Download PDFInfo
- Publication number
- CN105234336A CN105234336A CN201510793224.7A CN201510793224A CN105234336A CN 105234336 A CN105234336 A CN 105234336A CN 201510793224 A CN201510793224 A CN 201510793224A CN 105234336 A CN105234336 A CN 105234336A
- Authority
- CN
- China
- Prior art keywords
- hole
- piston rod
- cylinder body
- forging press
- sill
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Forging (AREA)
Abstract
The invention relates to an ejection safety mechanism for a forging press. The mechanism comprises a cylinder body and a lower cross beam; protrusions are arranged on the top of the cylinder body, and a plurality of mounting holes are formed in each protrusion; an opening is formed in the bottom of the cylinder body, and a piston rod is arranged in the cylinder body and is composed of a first-stage piston rod and a second-stage piston rod; an ejection rod sleeve is arranged in the first-stage piston rod, and an ejection rod hole is formed in the ejection rod sleeve; the ejection rod hole comprises a first-stage hole, a second-stage hole and a third-stage hole; the top end of the first-stage piston rod is connected with a stroke spring, and a lining sleeve is arranged outside the stroke spring; a bumper rod is arranged in the lower cross beam, and a safety pin is arranged in the bumper rod; and the two ends of the safety pin are arranged on the through holes in the lower cross beam. The ejection safety mechanism is precise in structure and high in pressure bearing capacity and meanwhile has the safety effect, and the condition that the ejection mechanism or the whole machine is damaged due to overload pressure borne by the ejection mechanism is prevented.
Description
Technical field
The present invention relates to a kind of forging press with ejecting insurance institution, belonging to screw tap contracting handle processing technique field.
Background technology
Screw tap is a kind of cutter of machining internal thread, can be divided into spiral tap and straight sword screw tap according to shape, and the shank of screw tap forges shrinking by forging press and forms, and is again contracting handle; Eject forging press by ejecting mechanism again after contracting handle is shaping and can complete the casting of contracting handle.
The forging press of screw tap contracting handle is processed, the ejecting mechanism on it, because forging and pressing inner hardness or other failure causes in prior art, ejecting mechanism can be caused to bear overladen pressure, along with machine operates continuously, cause ejecting mechanism to damage or complete machine impaired, thus cause larger economic loss.
Summary of the invention
The object of the invention is the defect for prior art, providing a kind of forging press with ejecting insurance institution, bearing capacity is strong, has safety effect simultaneously, prevents from causing the situation that ejecting mechanism damages or complete machine is impaired because ejecting mechanism bears overladen pressure.
The present invention is achieved by the following technical solutions:
A kind of forging press is with ejecting insurance institution, comprise cylinder body and sill, wherein, described cylinder body top is provided with projection, described projection is provided with some installing holes, described some installing holes were arranged around protruding one week, described cylinder base is provided with opening, piston rod is provided with in described cylinder body, described piston rod is made up of first stage piston bar and second piston rod, described first stage piston bar is connected with second piston rod one end, described first stage piston bar outer wall is provided with some grooves, described some grooves are symmetrically set, top stem casing is provided with in described first stage piston bar, the shaft section of described top stem casing is quadrangle, described quadrangle corner place is provided with cutting angle, jogger hole is provided with in described top stem casing, described jogger hole comprises one-level hole, second hole and three grades of holes, by top stem casing top to bottom direction, described one-level hole, second hole is connected successively with three grades of holes, the interior diameter of described second hole is all less than the interior diameter in one-level hole and three grades of holes, described first stage piston masthead portion is connected with stroke spring, lining is provided with outside stroke spring, described stroke spring one end is connected with lining,
Described sill is provided with fixing hole and through hole, be provided with bumper bar in described sill, described bumper bar one end is arranged at sill outside, and correspondingly with second piston rod position arranges, be provided with safety plug in described bumper bar, described safety plug two ends are arranged on the through hole of sill respectively.
Above-mentioned a kind of forging press is with ejecting insurance institution, and wherein, the overall diameter of described first stage piston bar is d1, and the overall diameter of second piston rod is d2, described d1>d2, and the bore of described opening is d3, described d2=d3.
Above-mentioned a kind of forging press is with ejecting insurance institution, and wherein, the surface of described some grooves is arc surface.
Above-mentioned a kind of forging press is with ejecting insurance institution, and wherein, the length of described jogger hole is L1, and the length in described one-level hole is L2, described L1:L2=4.9:1.
Beneficial effect of the present invention is:
The present invention is installed on forging press, the contracting handle of processing is placed in the jogger hole in top stem casing, when drift makes to make top stem casing press down during contracting handle shrinking, thus drive piston rod to move, stroke spring is stretched, second piston rod stretches out from the bottom opening of cylinder body, be butted on the bumper bar place of sill, along with machining, stroke spring moves because deformation recovery drives on piston rod, top stem casing moves, realizes contracting handle and eject; When the hardness because forging and pressing inside or other failure causes; ejecting mechanism is caused to bear overladen pressure; along with machine operates continuously; second piston rod is excessive with bumper bar phase synapsis pressure; thrust safety plug; bumper bar is come off from bottom, and piston rod can not continue punching press, thus plays the safety effect of protection ejecting mechanism and forging press complete machine.
The ratio in jogger hole of the present invention and one-level hole is suitable for, and is beneficial to the pressure-bearing property improving top stem casing, if be less than this ratio, is unfavorable for that contracting handle takes out; If be greater than this ratio, then the steadiness carrying contracting handle is not good.
Precise structure of the present invention, makes ejecting mechanism bearing capacity strong, has safety effect simultaneously, prevents from causing the situation that ejecting mechanism damages or complete machine is impaired because ejecting mechanism bears overladen pressure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is cylinder body top view of the present invention.
Fig. 3 is inventive piston bar top view.
Fig. 4 is top stem casing structural representation of the present invention.
Fig. 5 is top stem casing top view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
A kind of forging press is with ejecting insurance institution, comprise cylinder body 1 and sill 2, wherein, described cylinder body 1 top is provided with protruding 3, described protruding 3 are provided with some installing holes 4, described some installing holes 4 were arranged around protruding one week, opening 5 is provided with bottom described cylinder body 1, piston rod 6 is provided with in described cylinder body 1, described piston rod 6 is made up of first stage piston bar 7 and second piston rod 8, described first stage piston bar 7 is connected with second piston rod 8 one end, the overall diameter of described first stage piston bar 7 is d1, the overall diameter of second piston rod 8 is d2, described d1>d2, the bore of described opening 5 is d3, described d2=d3, described first stage piston bar 7 outer wall is provided with some grooves 9, described some grooves 9 are symmetrically set, the surface of described some grooves 9 is arc surface, top stem casing 10 is provided with in described first stage piston bar 7, the shaft section of described top stem casing 10 is quadrangle, described quadrangle corner place is provided with cutting angle 11, jogger hole 12 is provided with in described top stem casing 10, described jogger hole 12 comprises one-level hole 13, second hole 14 and three grades of holes 15, by top stem casing 10 top to bottom direction, described one-level hole 13, second hole 14 is connected successively with three grades of holes 15, the length of described jogger hole 15 is L1, the length in described one-level hole 13 is L2, described L1:L2=4.9:1, the interior diameter of described second hole 14 is all less than interior 5 diameters in one-level hole 13 and three grades of holes 1, described first stage piston bar 7 top is connected with stroke spring 16, lining 17 is provided with outside stroke spring 16, described stroke spring 16 one end is connected with lining 17,
Described sill 2 is provided with fixing hole 18 and through hole 19, bumper bar 20 is provided with in described sill 2, it is outside that described bumper bar 20 one end is arranged at sill 2, and correspondingly with second piston rod 8 position to arrange, be provided with safety plug 21 in described bumper bar 20, described safety plug 21 two ends are arranged on the through hole 19 of sill 2 respectively.
Working method of the present invention is:
The present invention is installed on forging press, the contracting handle of processing is placed in the jogger hole 12 in top stem casing 10, when drift makes to make top stem casing 10 press down during contracting handle shrinking, thus drive piston rod 6 to move, stroke spring 16 is stretched, second piston rod 8 stretches out from the bottom opening 5 of cylinder body 1, be butted on bumper bar 20 place of sill 2, along with machining, stroke spring 16 moves because deformation recovery drives on piston rod 6, top stem casing 10 moves, realizes contracting handle and eject; When the hardness because forging and pressing inside or other failure causes; ejecting mechanism is caused to bear overladen pressure; along with machine operates continuously; second piston rod 8 is excessive with bumper bar 20 phase synapsis pressure; thrust safety plug 21; bumper bar 20 is come off from bottom, and piston rod 6 can not continue punching press, thus plays the safety effect of protection ejecting mechanism and forging press complete machine.
Above are only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. a forging press is with ejecting insurance institution, comprise cylinder body and sill, it is characterized by, described cylinder body top is provided with projection, described projection is provided with some installing holes, described some installing holes were arranged around protruding one week, described cylinder base is provided with opening, piston rod is provided with in described cylinder body, described piston rod is made up of first stage piston bar and second piston rod, described first stage piston bar is connected with second piston rod one end, described first stage piston bar outer wall is provided with some grooves, described some grooves are symmetrically set, top stem casing is provided with in described first stage piston bar, the shaft section of described top stem casing is quadrangle, described quadrangle corner place is provided with cutting angle, jogger hole is provided with in described top stem casing, described jogger hole comprises one-level hole, second hole and three grades of holes, by top stem casing top to bottom direction, described one-level hole, second hole is connected successively with three grades of holes, the interior diameter of described second hole is all less than the interior diameter in one-level hole and three grades of holes, described first stage piston masthead portion is connected with stroke spring, lining is provided with outside stroke spring, described stroke spring one end is connected with lining,
Described sill is provided with fixing hole and through hole, be provided with bumper bar in described sill, described bumper bar one end is arranged at sill outside, and correspondingly with second piston rod position arranges, be provided with safety plug in described bumper bar, described safety plug two ends are arranged on the through hole of sill respectively.
2. a kind of forging press as claimed in claim 1 is with ejecting insurance institution, it is characterized by, and the overall diameter of described first stage piston bar is d1, and the overall diameter of second piston rod is d2, described d1>d2, and the bore of described opening is d3, described d2=d3.
3. a kind of forging press as claimed in claim 1 is with ejecting insurance institution, it is characterized by, and the surface of described some grooves is arc surface.
4. a kind of forging press as claimed in claim 1 is with ejecting insurance institution, it is characterized by, and the length of described jogger hole is L1, and the length in described one-level hole is L2, described L1:L2=4.9:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793224.7A CN105234336A (en) | 2015-11-18 | 2015-11-18 | Ejection safety mechanism for forging press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793224.7A CN105234336A (en) | 2015-11-18 | 2015-11-18 | Ejection safety mechanism for forging press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105234336A true CN105234336A (en) | 2016-01-13 |
Family
ID=55032293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510793224.7A Pending CN105234336A (en) | 2015-11-18 | 2015-11-18 | Ejection safety mechanism for forging press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105234336A (en) |
-
2015
- 2015-11-18 CN CN201510793224.7A patent/CN105234336A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160113 |
|
| WD01 | Invention patent application deemed withdrawn after publication |