CN105538763A - Toggle type underdrive coining press - Google Patents
Toggle type underdrive coining press Download PDFInfo
- Publication number
- CN105538763A CN105538763A CN201610109239.1A CN201610109239A CN105538763A CN 105538763 A CN105538763 A CN 105538763A CN 201610109239 A CN201610109239 A CN 201610109239A CN 105538763 A CN105538763 A CN 105538763A
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- CN
- China
- Prior art keywords
- hinged
- connecting rod
- rod
- toggle
- stage clip
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
- B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/28—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/266—Drive systems for the cam, eccentric or crank axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/40—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by wedge means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a toggle type underdrive coining press. The toggle type underdrive coining press comprises a press body, a toggle sliding block transmission device, a buffer device, a forming protection device and a sliding block stroke adjusting device. The toggle sliding block transmission device comprises a buffer connecting rod, a pull rod, an upper connecting rod and a lower connecting rod. The upper end of the buffer connecting rod is hinged to the buffer device, the lower end of the buffer connecting rod is hinged to a crankshaft journal, a crankshaft is hinged to a crankshaft lower connecting rod, the crankshaft lower connecting rod is hinged to one end of the pull rod, the other end of the pull rod is hinged to the lower end of the upper connecting rod and the upper end of the lower connecting rod, and the lower end of the upper connecting rod is hinged to a sliding block. The forming protection device is arranged on the sliding block and the front side of an upper base plate. The sliding block stroke adjusting device is arranged on the bottom of a lower workbench of the press body. The buffer device is simple in structure and convenient to maintain, and the reliability is improved. A baffle blocks a mold space all the time in the coining process. The sliding block stroke adjusting device adjusts the stroke of the sliding block by adjusting the positions of the pull rod, the upper connecting rod and the lower connecting rod, and adjustment is convenient and rapid.
Description
Technical field
The present invention relates to a kind of toggle rod type punching machine, especially a kind of compact conformation, elbow bar-type precision press easy to use, belong to metal forming machinery technical field.
Background technology
The ram travel of elbow bar-type precision press compared with short, deformation force large, for plastic deformation process such as cubic deformation, surface markings, be widely used in Powder Metallurgy Industry, food service industry and other extraordinary pressure processing fields.Existing elbow bar-type precision press clutch cushion generally adopts buffering pneumatic cushion to cushion, buffering pneumatic cushion except complex structure, inconvenient maintenance and frequency higher except, also need compressed air gas source.Some are not possessed to the small business of compressed air gas source, be difficult to use this smoothing press.Some special industry is shaped as the pressure-sizing of explosive, also needs flame proection, and existing elbow bar-type precision press is difficult to this pressure processing operation competent.
Summary of the invention
The object of this invention is to provide a kind of compact conformation, buffer unit is full mechanical and has the toggle rod type underdrive smoothing press of flame proection.
The present invention is achieved by the following technical programs:
A kind of toggle rod type underdrive smoothing press, comprise fuselage, multi-stage speed-reducing transmission device, toggle link block driving device, arrangement of clutch, buffer unit, shaping protective device and ram travel adjusting device, described multi-stage speed-reducing transmission device is arranged on outside in fuselage, comprise motor-driven first order belt reduction gearing mechanism, the second level gear reduced drive mechanism be connected successively with first order belt reduction gearing mechanism and third level gear reduced drive mechanism, arrangement of clutch is arranged in third level gear drive, bent axle one end is fixedly connected with arrangement of clutch one end, maneton in the middle part of bent axle and toggle link block driving device hinged, bent axle other end termination is fixedly connected with brake wheel, described toggle link block driving device comprises buffering connecting rod, pull bar, upper connecting rod and lower link, described buffering small end and buffer unit hinged, buffering connecting rod lower end and maneton hinged, bent axle and bent axle lower link upper end thereof, bent axle lower link lower end and pull bar one end hinged, the pull bar other end and upper connecting rod lower end and lower link upper end thereof, upper connecting rod lower end and slide block hinged, slide block is positioned on the downside of upper padding plate, and upper padding plate is fixed on the downside of the entablature of fuselage, shaping protective device is arranged on front side of slide block and upper padding plate, on bottom the lower table that ram travel adjusting device is arranged on fuselage, hinged on the upside of lower link lower end and ram travel adjusting device.
Object of the present invention can also be realized further by following technical measures.
Further, the length ratio of described pull bar, upper connecting rod and lower link is 0.9 ~ 1.1:0.7 ~ 0.8:2.4 ~ 2.6.
Further, the outer peripheral face of described brake wheel is taper type, and brake ring is enclosed within the brake wheel of taper type, and the tapering of brake ring cone-shaped inner hole mates with the tapering of taper type brake wheel outer peripheral face.
Further, described buffer unit comprises cross tube, sheer pole, two extension springs, stage clip and stage clip pre-tightening mechanisms, cross tube is fixedly connected with on the downside of the entablature of fuselage, stage clip pre-tightening mechanism upper and lower side is respectively with in the middle part of cross tube, be connected in the middle part of sheer pole, and the upper and lower side of two extension springs connects into rectangular frame respectively by drag hook and cross tube two ends and sheer pole two ends; Also hinged with buffering small end in the middle part of sheer pole.
Further, described stage clip pre-tightening mechanism comprises stage clip stem stem, upper press cover, lower bolster and several adjusting rod, stage clip stem stem upper and lower side is connected with being connected and fixed in the middle part of cross tube, in the middle part of sheer pole respectively, compression spring sleeve is on stage clip stem stem, several adjusting rod be arranged in parallel with stage clip stem stem is around stage clip inner circumferential, several adjusting rod upper and lower side is each passed through upper press cover and lower bolster, and nut is screwed in the upper and lower side of several adjusting rod respectively.
Further, described shaping protective device comprises cam, roller, lever, protection baffle plate and protective device connecting rod, described cam is fixedly connected with the bent axle other end, roller is inlaid in the groove of cam face, roller and protective device connecting rod lower end hinged, protective device small end and lever one end hinged, its intermediate part is hinged with the upper hinged seat be fixed on inside entablature, the lever other end is hinged with small end on protection baffle plate, and on protection baffle plate, connecting rod lower end is fixedly connected with protection baffle plate upper end; Bent axle rotates to top dead-centre process from bottom dead centre, protection baffle plate move down to block on the downside of upper padding plate and on the upside of slide block between die space.
Further, described ram travel adjusting device comprises lower hinged seat, inclination seat board, lower support bar, screw rod and handwheel, on bottom the lower table that the large end of described inclination seat board is arranged on fuselage outwardly, lower hinged seat is fixed on the upside of inclination seat board small end, lower link lower end and lower hinged seat hinged, lower support bar upper end is fixed on the downside of the large end of inclination seat board, screw rod one end and lower table vertical side hinged, the screw rod other end is horizontal through the screwed hole of lower support bar lower end, and screw rod other end termination is fixedly connected with handwheel.
Buffer unit of the present invention adopts the frame structure of two extension springs and stage clip composition to replace buffering pneumatic cushion, and structure is simple, easy to maintenance and improve the reliability of buffer unit.The present invention does not need to use compressed air, reduces use cost.The brake wheel of taper type increases the contact area with brake ring, improves braking effect; By changing the contact area between brake ring and brake wheel, brake force and braking time can be adjusted.Shaping protective device of the present invention adopts cam lever structure, makes to protect baffle plate to block die space all the time in coining process, guarantees the safety of operator in explosive or other dangerous material pressure-sizing forming processes.What ram travel adjusting device adopted inclination seat board moves horizontally the position adjusting pull bar, upper connecting rod and lower link three bar, thus the stroke of adjustment slide block, fast easy to adjust.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes fuselage 1, multi-stage speed-reducing transmission device 2, toggle link block driving device 3, arrangement of clutch 4, buffer unit 5, shaping protective device 6 and ram travel adjusting device 7, multi-stage speed-reducing transmission device 1 is arranged on outside in fuselage 1, comprise the first order belt reduction gearing mechanism 22 that motor 21 drives, the second level gear reduced drive mechanism 23 be connected successively with first order belt reduction gearing mechanism 22 and third level gear reduced drive mechanism 24, arrangement of clutch 4 is arranged in the 4th gear 241 of third level gear drive 24, bent axle 8 left end is fixedly connected with arrangement of clutch 4 right-hand member, maneton 81 in the middle part of bent axle 8 is hinged with toggle link block driving device 3, bent axle 8 right-hand member termination is fixedly connected with brake wheel 9.The outer peripheral face of brake wheel 9 is taper type, and the bevel angle of the brake wheel 9 of the present embodiment is 45 °.Brake ring 91 is enclosed within the brake wheel 9 of taper type, both tapering couplings.Move axially brake ring 91, the contact area between brake ring 91 and brake wheel 9 can be changed, adjust brake force and braking time.
Toggle link block driving device 3 comprises buffering connecting rod 31, pull bar 32, upper connecting rod 33 and lower link 34, buffering connecting rod 31 upper end and buffer unit 5 hinged, lower end and maneton 81 hinged, bent axle 8 and bent axle lower link 82 upper end thereof, bent axle lower link 82 lower end and pull bar 32 left end hinged, pull bar 32 right-hand member and upper connecting rod 33 lower end and lower link 34 upper end thereof, upper connecting rod 33 lower end and slide block 35 hinged, slide block 35 is positioned on the downside of upper padding plate 36, and upper padding plate 36 is fixed on the downside of fuselage entablature 11.The length ratio of pull bar 32, upper connecting rod 33 and lower link 34 is 0.9 ~ 1.1:0.7 ~ 0.8:2.4 ~ 2.6, and the present embodiment is 1:0.8:25.
Buffer unit 5 comprises cross tube 51, sheer pole 52, two extension springs 53, stage clip 54 and stage clip pre-tightening mechanisms 55, cross tube 51 is fixedly connected with on the downside of the entablature 11 of fuselage 1, stage clip pre-tightening mechanism 55 upper and lower side is respectively with in the middle part of cross tube 51, be connected in the middle part of sheer pole 52, and the upper and lower side of two extension springs 53 connects into rectangular frame respectively by drag hook 56 and cross tube 51 two ends and sheer pole 52 two ends.In the middle part of sheer pole 52 also with buffering connecting rod 31 upper end thereof.Stage clip pre-tightening mechanism 55 comprises stage clip stem stem 551, upper press cover 552, lower bolster 553 and several adjusting rod 554, stage clip stem stem 551 upper and lower side is respectively with in the middle part of cross tube 51, be fixedly connected with in the middle part of sheer pole 52, stage clip 54 is enclosed within stage clip stem stem 551, several adjusting rod 554 be arranged in parallel with stage clip stem stem 551 is around stage clip 54 inner circumferential, several adjusting rod 554 upper and lower side is each passed through upper press cover 552 and lower bolster 553, and nut 555 is screwed in the upper and lower side of several adjusting rod 554 respectively.Fastening nut 555, makes stage clip 54 be subject to precompressed.During rectangular frame assembling, two of its both sides extension springs 53 are made all to be subject to prestretching.Turn to the idle stroke process of bottom dead centre at bent axle 8 from top dead-centre, buffering connecting rod 31 moves down, buffer unit 5 tension, two extension spring 53 tensions of rectangular frame both sides extend, meanwhile, stage clip 54 tension in the middle of rectangular frame, its tension stroke and stage clip 54 precompressed stroke offset; Cushioned when slide block 35 being moved down by pull bar 32, upper connecting rod 33 and lower link 34.Turn to the pressure stroke process of top dead-centre at bent axle 8 from bottom dead centre, buffering connecting rod 31 moves, buffer unit 5 pressurized, two extension spring 53 pressurizeds of rectangular frame both sides shorten, and its pressurized stroke and two extension spring 53 stage clip 54 prestretching strokes offset; Stage clip 54 pressurized in the middle of rectangular frame, makes to be cushioned when slide block 35 moves by pull bar 32, upper connecting rod 33 and lower link 34.Like this, slide block 35 uplink and downlink are all cushioned.
Shaping protective device 6 is arranged on front side of slide block 35 and upper padding plate 36, comprise cam 61, roller 62, lever 63, protection baffle plate 64 and protective device connecting rod 65, cam 61 is fixedly connected with bent axle 8 right-hand member, roller 62 is inlaid in the groove of cam 61 end face, roller 61 is hinged with protective device connecting rod 65 lower end, protective device connecting rod 65 upper end and lever 63 left end hinged, hinged with the upper hinged seat 66 be fixed on inside entablature 11 in the middle part of lever 63, lever 63 right-hand member and connecting rod 67 upper end thereof on protection baffle plate, on protection baffle plate, connecting rod 67 lower end is fixedly connected with protection baffle plate 64 upper end.Bent axle 8 rotates to top dead-centre process from bottom dead centre, protection baffle plate 64 move down to block on the downside of upper padding plate 36 and on the upside of slide block 35 between die space.Guarantee to protect baffle plate to block the safety of die space operator all the time in explosive or other dangerous material pressure-sizing forming processes.
On bottom the lower table 12 that ram travel adjusting device 7 is arranged on fuselage 1, comprise lower hinged seat 71, inclination seat board 72, lower support bar 73, screw rod 74 and handwheel 75, on bottom the lower table 12 that the large end of inclination seat board 72 is arranged on fuselage outwardly, lower hinged seat 71 is fixed on the upside of inclination seat board 72 small end, lower link 34 lower end and lower hinged seat 71 hinged, lower support bar 73 upper end is fixed on inclination seat board 72 and holds greatly downside, screw rod 74 left end and lower table 12 vertical side hinged, screw rod 74 right-hand member is horizontal through the screwed hole of lower support bar 73 lower end, screw rod 74 right-hand member termination is fixedly connected with handwheel 75.Rotate handwheel 75, screw rod 74 rotates thereupon, pulls inclination seat board 72 to move left and right by lower support bar 73, thus changes the position of lower hinged seat 71, and the position of pull bar 32, upper connecting rod 33 and lower link 34 3 bar is changed, thus the stroke of adjustment slide block 35.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (7)
1. a toggle rod type underdrive smoothing press, comprise fuselage, multi-stage speed-reducing transmission device, toggle link block driving device, arrangement of clutch, buffer unit, shaping protective device and ram travel adjusting device, described multi-stage speed-reducing transmission device is arranged on outside in fuselage, comprise motor-driven first order belt reduction gearing mechanism, the second level gear reduced drive mechanism be connected successively with first order belt reduction gearing mechanism and third level gear reduced drive mechanism, arrangement of clutch is arranged in third level gear drive, bent axle one end is fixedly connected with arrangement of clutch one end, maneton in the middle part of bent axle and toggle link block driving device hinged, bent axle other end termination is fixedly connected with brake wheel, it is characterized in that: described toggle link block driving device comprises buffering connecting rod, pull bar, upper connecting rod and lower link, described buffering small end and buffer unit hinged, buffering connecting rod lower end and maneton hinged, bent axle and bent axle lower link upper end thereof, bent axle lower link lower end and pull bar one end hinged, the pull bar other end and upper connecting rod lower end and lower link upper end thereof, upper connecting rod lower end and slide block hinged, slide block is positioned on the downside of upper padding plate, and upper padding plate is fixed on the downside of the entablature of fuselage, shaping protective device is arranged on front side of slide block and upper padding plate, on bottom the lower table that ram travel adjusting device is arranged on fuselage, hinged on the upside of lower link lower end and ram travel adjusting device.
2. toggle rod type underdrive smoothing press as claimed in claim 1, is characterized in that: the length ratio of described pull bar, upper connecting rod and lower link is 0.9 ~ 1.1:0.7 ~ 0.8:2.4 ~ 2.6.
3. toggle rod type underdrive smoothing press as claimed in claim 1, it is characterized in that: the outer peripheral face of described brake wheel is taper type, and brake ring is enclosed within the brake wheel of taper type, the tapering of brake ring cone-shaped inner hole mates with the tapering of taper type brake wheel outer peripheral face.
4. toggle rod type underdrive smoothing press as claimed in claim 1, it is characterized in that: described buffer unit comprises cross tube, sheer pole, two extension springs, stage clip and stage clip pre-tightening mechanisms, cross tube is fixedly connected with on the downside of the entablature of fuselage, stage clip pre-tightening mechanism upper and lower side is respectively with in the middle part of cross tube, be fixedly connected with in the middle part of sheer pole, and the upper and lower side of two extension springs connects into rectangular frame respectively by drag hook and cross tube two ends and sheer pole two ends; Also hinged with buffering small end in the middle part of sheer pole.
5. toggle rod type underdrive smoothing press as claimed in claim 4, it is characterized in that: described stage clip pre-tightening mechanism comprises stage clip stem stem, upper press cover, lower bolster and several adjusting rod, stage clip stem stem upper and lower side is connected with being connected and fixed in the middle part of cross tube, in the middle part of sheer pole respectively, compression spring sleeve is on stage clip stem stem, several adjusting rod be arranged in parallel with stage clip stem stem is around stage clip inner circumferential, several adjusting rod upper and lower side is each passed through upper press cover and lower bolster, and nut is screwed in the upper and lower side of several adjusting rod respectively.
6. toggle rod type underdrive smoothing press as claimed in claim 1, it is characterized in that: described shaping protective device comprises cam, roller, lever, protection baffle plate and protective device connecting rod, described cam is fixedly connected with the bent axle other end, roller is inlaid in the groove of cam face, roller and protective device connecting rod lower end hinged, protective device small end and lever one end hinged, its intermediate part is hinged with the upper hinged seat be fixed on inside entablature, the lever other end is hinged with small end on protection baffle plate, on protection baffle plate, connecting rod lower end is fixedly connected with protection baffle plate upper end, bent axle rotates to top dead-centre process from bottom dead centre, protection baffle plate move down to block on the downside of upper padding plate and on the upside of slide block between die space.
7. toggle rod type underdrive smoothing press as claimed in claim 1, it is characterized in that: described ram travel adjusting device comprises lower hinged seat, inclination seat board, lower support bar, screw rod and handwheel, on bottom the lower table that the large end of described inclination seat board is arranged on fuselage outwardly, lower hinged seat is fixed on the upside of inclination seat board small end, lower link lower end and lower hinged seat hinged, lower support bar upper end is fixed on the downside of the large end of inclination seat board, screw rod one end and lower table vertical side hinged, the screw rod other end is horizontal through the screwed hole of lower support bar lower end, screw rod other end termination is fixedly connected with handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610109239.1A CN105538763B (en) | 2016-02-29 | 2016-02-29 | Toggle type underdrive coining press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610109239.1A CN105538763B (en) | 2016-02-29 | 2016-02-29 | Toggle type underdrive coining press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105538763A true CN105538763A (en) | 2016-05-04 |
| CN105538763B CN105538763B (en) | 2017-05-03 |
Family
ID=55818522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610109239.1A Active CN105538763B (en) | 2016-02-29 | 2016-02-29 | Toggle type underdrive coining press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105538763B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696326A (en) * | 2016-12-21 | 2017-05-24 | 宁波澳玛特高精冲压机床股份有限公司 | Punching device for punching machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB499565A (en) * | 1938-02-05 | 1939-01-25 | Maschf | Toggle lever press for the automatic production of ceramic plates or the like |
| JPH0740098A (en) * | 1993-07-29 | 1995-02-10 | Ishikawajima Harima Heavy Ind Co Ltd | Transmission device for drive force of mechanical press and its starting method |
| CN102092144A (en) * | 2009-12-10 | 2011-06-15 | 朱祥中 | Novel pressure machine |
| CN203864044U (en) * | 2014-05-30 | 2014-10-08 | 沃得精机(中国)有限公司 | Different-direction transmission device for two-point pressure machine |
| CN104226768A (en) * | 2014-09-09 | 2014-12-24 | 宁波市科斯顿精工机械有限公司 | Connecting rod punch press |
| CN204172385U (en) * | 2014-09-03 | 2015-02-25 | 浙江金澳兰机床有限公司 | 8 connecting rod punch presses |
| CN205395220U (en) * | 2016-02-29 | 2016-07-27 | 沃得精机(中国)有限公司 | Toggle link formula underdrive knuckle lever coining press |
-
2016
- 2016-02-29 CN CN201610109239.1A patent/CN105538763B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB499565A (en) * | 1938-02-05 | 1939-01-25 | Maschf | Toggle lever press for the automatic production of ceramic plates or the like |
| JPH0740098A (en) * | 1993-07-29 | 1995-02-10 | Ishikawajima Harima Heavy Ind Co Ltd | Transmission device for drive force of mechanical press and its starting method |
| CN102092144A (en) * | 2009-12-10 | 2011-06-15 | 朱祥中 | Novel pressure machine |
| CN203864044U (en) * | 2014-05-30 | 2014-10-08 | 沃得精机(中国)有限公司 | Different-direction transmission device for two-point pressure machine |
| CN204172385U (en) * | 2014-09-03 | 2015-02-25 | 浙江金澳兰机床有限公司 | 8 connecting rod punch presses |
| CN104226768A (en) * | 2014-09-09 | 2014-12-24 | 宁波市科斯顿精工机械有限公司 | Connecting rod punch press |
| CN205395220U (en) * | 2016-02-29 | 2016-07-27 | 沃得精机(中国)有限公司 | Toggle link formula underdrive knuckle lever coining press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696326A (en) * | 2016-12-21 | 2017-05-24 | 宁波澳玛特高精冲压机床股份有限公司 | Punching device for punching machine |
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| Publication number | Publication date |
|---|---|
| CN105538763B (en) | 2017-05-03 |
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