CN112059088B - Multi-station die holder for punch press - Google Patents
Multi-station die holder for punch press Download PDFInfo
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- CN112059088B CN112059088B CN202010904688.1A CN202010904688A CN112059088B CN 112059088 B CN112059088 B CN 112059088B CN 202010904688 A CN202010904688 A CN 202010904688A CN 112059088 B CN112059088 B CN 112059088B
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- tray
- lower die
- groove
- station
- die holder
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- 210000001503 joint Anatomy 0.000 claims description 23
- 238000013016 damping Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 241000309551 Arthraxon hispidus Species 0.000 claims 2
- 238000003491 array Methods 0.000 claims 1
- 238000005242 forging Methods 0.000 abstract description 15
- 238000003754 machining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000009428 plumbing Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B21J13/02—Dies or mountings therefor
-
- 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
- B21J13/085—Accessories for handling work or tools handling of tools
-
- 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)
- Forging (AREA)
Abstract
The invention belongs to the field of forging dies, and particularly relates to a multi-station die holder for a punch, which comprises a lower die holder, an upper die holder, a lower die tray and a rotating mechanism; the lower die holder is provided with a tray groove, the lower die tray is placed in the tray groove, the lower die tray is provided with a plurality of groups of station grooves, and a lower die is fixedly arranged in the station grooves; the upper end of the tray groove is fixedly provided with a limiting ring and a plurality of groups of limiting blocks respectively, the bottom of the station groove is provided with a jacking hole, and one end of the jacking hole is communicated with the processing groove; the output shaft of the hydraulic ejector rod can movably penetrate through the ejection hole. The invention avoids the dangerous hidden trouble of manual clamping of the clamping device, and greatly improves the processing efficiency by arranging a plurality of groups of stations and the design of rotation and circulation of the stations; the workpiece taking-out step does not need manual assistance, is quite simple and convenient, and further improves the working efficiency.
Description
Technical Field
The invention belongs to the field of forging dies, and particularly relates to a multi-station die holder for a punch.
Background
Flanges are commonly used as connectors between pipes, valves, pumps and other plumbing to complete the plumbing work in a place, and are typically welded or screwed onto the pipes and then bolted. The existing flange production process mainly comprises two steps of forging and casting, wherein the carbon content of the forged flange is generally lower than that of the cast flange, and the forged flange is not easy to rust; the forging flange has good streamline shape, compact structure and better mechanical property than the casting flange; the forging flange can bear higher shearing force and stretching force than the casting flange, and the forging has uniform internal structure and harmful defects such as air holes, impurities and the like. There is an increasing demand for forging flanges.
When the existing flange is forged, the heated blank is generally placed in a processing area of a forging hammer or a punch press, the blank is manually held by a clamp to be clamped, then upsetting and final forging are carried out, and by the traditional manual clamping mode, workers are easily damaged by a machine accidentally, the flange is dangerous, the processing size is inaccurate, secondary processing is often needed, and therefore the flange is forged by using a die. When the existing common die is used for forging the flange, the steps of filling the blank and taking out the forging piece are complicated, manual auxiliary operation is still needed, and the working efficiency is low, so that a multi-station die holder for a punch is needed.
Disclosure of Invention
The invention provides a multi-station die holder for a punch, which comprises a lower die holder, an upper die holder, a lower die tray and a rotating mechanism;
the lower die holder is provided with a tray groove, the lower die tray is placed in the tray groove, the lower die tray is provided with a plurality of groups of station grooves, and a lower die is fixedly arranged in the station grooves;
the bottom of the tray tank is provided with a first mounting groove, the rotating mechanism is fixedly arranged in the first mounting groove, the output end of the rotating mechanism is arranged below the lower die tray, the central axis of the output shaft of the rotating mechanism is coincident with the central axis of the lower die tray, and the upper die holder is positioned above the lower die tray;
One or more groups of upper dies are fixedly arranged at the lower end of the upper die holder;
The upper end of the tray groove is fixedly provided with a limiting ring and a plurality of groups of limiting blocks respectively, the bottom of the tray groove is also provided with a second mounting groove, the second mounting groove is positioned right below the limiting ring, a hydraulic ejector rod is fixedly arranged in the second mounting groove, and the central axis of an output shaft of the hydraulic ejector rod coincides with the central axis of the limiting ring;
The lower die is provided with a processing groove, the processing groove penetrates through the lower die, the inner diameter of the limiting ring is larger than the maximum inner diameter of the processing groove, and the inner diameter of the limiting ring is smaller than the minimum outer diameter of the processing groove;
A material ejection hole is formed in the bottom of the station groove, and one end of the material ejection hole is communicated with the processing groove; the output shaft of the hydraulic ejector rod can movably penetrate through the ejection hole.
Preferably, the upper die is provided with two groups; the station grooves are arranged in three groups, the three groups of station grooves are arranged in a regular triangle, and the center distances of the three groups of station grooves are equal to the center distances of the two groups of upper dies.
Preferably, the limiting ring is positioned on one side, far away from the upper die holder, of the lower die holder, and the connecting line between the center of the limiting ring and the center of the tray groove is perpendicular to the connecting line between the centers of the two groups of upper dies.
Preferably, the station groove is internally provided with an internal thread seat, the outer wall of the internal thread seat is connected with the inner wall of the station groove through damping springs, the damping springs are arranged in an annular array, the lower die is installed in the internal thread seat in a threaded manner, and one end of the ejection hole penetrates through the internal thread seat and is communicated with the processing groove.
Preferably, the lower die tray and the tray groove are both cylindrical, the lower die tray is in clearance fit with the tray groove, the balls are rotatably mounted on the side wall of the lower die tray, and the annular array of the balls is arranged on the side wall of the lower die tray.
Preferably, the rotating mechanism comprises a hydraulic cylinder and a motor; the hydraulic cylinder is characterized in that one end of the hydraulic cylinder output shaft is fixedly connected with a motor box, the motor is fixedly clamped in the motor box, one end of the motor output shaft penetrates through the motor box and is located above the motor box, one end of the motor output shaft is fixedly connected with a first butt joint, and a cross-shaped lug is arranged on the first butt joint.
Preferably, a second butt joint is fixedly arranged at the center of the bottom of the lower die tray, a cross-shaped groove is formed in the second butt joint, and the cross-shaped groove and the cross-shaped protruding block are correspondingly arranged.
Preferably, a turntable bearing is fixedly arranged at the upper end of the motor box, a through hole is formed in the center of the turntable bearing, the through hole is communicated with the interior of the motor box, and the first butt joint is located in the through hole.
According to the multi-station die holder, the die is matched with the punch to upsets and finish forges the blanks, so that the dangerous hidden danger of manual clamping by a clamping tool is avoided, and the machining efficiency is greatly improved through the design that a plurality of groups of stations are arranged and the plurality of groups of stations rotate and circulate; through being provided with hydraulic ejector pin and liftout hole, hydraulic ejector pin output accessible liftout hole takes out the forging for the forging takes out the step and need not manual work auxiliary, very simple and convenient, further improved work efficiency.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows an overall cross-sectional view according to an embodiment of the invention;
FIG. 2 illustrates a lower die isometric view according to an embodiment of the invention;
FIG. 3 illustrates a cross-sectional view of a lower die holder in accordance with an embodiment of the present invention;
FIG. 4 illustrates a side view of a lower die holder according to an embodiment of the present invention;
FIG. 5 illustrates a cross-sectional view of a rotating mechanism according to an embodiment of the present invention;
FIG. 6 shows a top view of a lower die tray according to an embodiment of the invention;
FIG. 7 illustrates a top view of a station slot according to an embodiment of the present invention;
FIG. 8 illustrates a bottom view of a lower die tray according to an embodiment of the invention;
fig. 9 shows a side view of a lower die tray according to an embodiment of the invention.
In the figure: 1. a lower die holder; 101. a tray slot; 102. a first mounting groove; 103. a second mounting groove; 2. an upper die holder; 201. an upper die; 3. a lower die tray; 301. a station groove; 302. an internal thread seat; 303. a damping spring; 304. a jacking hole; 305. a ball; 4. a rotating mechanism; 5. a lower die; 501. a processing groove; 6. a limiting ring; 7. a limiting block; 8. a hydraulic ejector rod; 9. a hydraulic cylinder; 10. a motor; 11. a motor case; 12. a turntable bearing; 13. a first pair of joints; 14. and a second pair of connectors.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a multi-station die holder for a punch, which comprises a lower die holder 1, an upper die holder 2, a lower die tray 3 and a rotating mechanism 4.
As shown in fig. 1, the lower die holder 1 is provided with a tray groove 101, the lower die tray 3 is placed in the tray groove 101, and a plurality of groups of lower dies 5 are fixedly installed on the lower die tray 3;
the tray groove 101 bottom has seted up first mounting groove 102, slewing mechanism 4 fixed mounting is in first mounting groove 102, slewing mechanism 4 output is vertical upwards, and slewing mechanism 4 output and the axis coincidence of lower mould tray 3, upper die base 2 is located lower mould tray 3 top.
Two groups of upper dies 201 are fixedly arranged at the lower end of the upper die holder 2.
As shown in fig. 2, the outer wall of the lower mold 5 is provided with threads, and the lower mold 5 is provided with a processing groove 501, and the processing groove 501 penetrates through the lower mold 5. In forging the blank, the blank is placed in the processing tank 501.
By mounting the lower die tray 3 in the tray groove 101, the tray groove 101 positions the lower die tray 3, preventing the lower die tray 3 from deviating from the processing area of the punch press during processing.
Preferably, the lower die tray 3 can be set to be of a circular structure, and the lower die tray 3 is in clearance fit with the tray groove 101, so that the lower die tray 3 can rotate in the tray groove 101, stress generated by the lower die tray 3 can be transmitted to the inner wall of the tray groove 101 to the greatest extent in the horizontal direction when the punch is used for punching, displacement dislocation of the lower die tray 3 is reduced, and machining precision is prevented from being too low.
As shown in fig. 3 and fig. 4, the upper end of the tray groove 101 is fixedly provided with a limiting ring 6 and two groups of limiting blocks 7 respectively, the bottom of the tray groove 101 is also provided with a second mounting groove 103, the second mounting groove 103 is positioned right below the limiting ring 6, a hydraulic ejector rod 8 is fixedly arranged in the second mounting groove 103, the output shaft of the hydraulic ejector rod 8 is vertically upwards, and the central axis of the output shaft of the hydraulic ejector rod 8 coincides with the central axis of the limiting ring 6;
the inner diameter of the limiting ring 6 is larger than the maximum inner diameter of the processing groove 501, and the inner diameter of the limiting ring 6 is smaller than the minimum outer diameter of the processing groove 501;
The limiting ring 6 is positioned above the lower die holder 1, and in the horizontal direction, the limiting ring 6 is positioned on one side far away from the upper die holder 2, and the connecting line between the center of the limiting ring 6 and the center of the tray groove 101 is perpendicular to the connecting line between the centers of the two groups of upper dies 201.
The limiting blocks 7 are used for preventing the lower die tray 3 from being ejected by the hydraulic ejector rods 8, in other embodiments, two groups of limiting blocks can be movably connected with the lower die holder 1, and the positions of the two groups of limiting blocks 7 can be adjusted; the hydraulic ejector rod 8 is used for ejecting a finished workpiece from the lower die 5, the limiting ring 6 is used for being matched with the hydraulic ejector rod 8 to eject the workpiece, and when the hydraulic ejector rod 8 ejects the workpiece, the limiting ring 6 can clamp the lower die 5 to prevent the lower die 5 from being ejected out of the lower die tray 3.
Illustratively, as shown in fig. 5, the rotating mechanism 4 includes a hydraulic cylinder 9 and a motor 10; one end fixedly connected with motor case 11 of pneumatic cylinder 9 output shaft, motor 10 joint is fixed in motor case 11, the upper end fixed mounting of motor case 11 has turntable bearing 12, turntable bearing 12's center is provided with the through-hole, the inside intercommunication of through-hole and motor case 11, the one end fixedly connected with first butt joint 13 of motor 10 output shaft, first butt joint 13 is located the through-hole, be provided with the cross lug on the first butt joint.
The rotary table bearing 12 is driven to jack up the lower die tray 3 through the extension of the hydraulic cylinder 9, and meanwhile, the first butt joint 13 is in butt joint with the lower die tray 3, so that the motor 10 drives the lower die tray 3 to rotate, through the structure, the rotation of the lower die tray 3 can be realized, and the rotating mechanism 4 can not be impacted by a punch press during processing.
As shown in fig. 6 and 7, three sets of station grooves 301 are formed on the lower mold tray 3, but not limited to, an internal thread seat 302 is disposed in the station groove 301, an outer wall of the internal thread seat 302 is connected with an inner wall of the station groove 301 through a damping spring 303, and the lower mold 5 is installed in the internal thread seat 302 in a threaded manner;
A jacking hole 304 is formed in the bottom of the station groove 301, and one end of the jacking hole 304 penetrates through the internal thread seat 302 to be communicated with the processing groove 501;
The output end of the hydraulic ejector rod 8 stretches through the ejection hole 304, so that upward force can be applied to a workpiece in the processing groove 501, the workpiece is ejected, the operation is simple, and the ejection step is quick and efficient; through the cooperation of spacing ring 6, at the in-process of ejecting finished piece, spacing ring 6 can block bed die 5, avoids bed die 5 to be ejected.
The damping springs 303 are arranged in an annular array, the three groups of station grooves 301 are arranged in a regular triangle shape, and the center distances of the three groups of station grooves 301 are equal to the center distances of the two groups of upper dies 201;
In the punching process of the punching machine, the impact force received by the lower die 5 mostly has horizontal component force, so that the lower die 5 can translate or the inner wall of the lower die 5 is worn out in an accelerating way, the horizontal impact force received by the lower die 5 can be slowed down through the damping spring 303, the lower die 5 is protected, the wear of the lower die 5 is reduced, and meanwhile, the damping spring 303 can enable the lower die 5 to recover to the original position after being displaced, so that the device can work stably.
As shown in fig. 8, a second butt joint 14 is fixedly installed at the bottom center of the lower mold tray 3, and a cross-shaped groove is formed in the second butt joint 14, and is arranged corresponding to the cross-shaped protruding block;
Through the cooperation of cross lug and cross recess, when first butt joint 13 and second butt joint 14 dock, can make motor 10's output shaft drive lower mould tray 3 rotate, when pneumatic cylinder 9 withdraw, first butt joint 13 and second butt joint 14 can natural separation, simple structure, the transmission is firm.
Illustratively, as shown in fig. 9, the side wall of the lower mold tray 3 is rotatably provided with balls 305, and the annular array of balls 305 is disposed on the side wall of the lower mold tray 3.
Through setting up lower mould tray 3 to circular, and through ball 305 and tray groove 101 clearance fit for lower mould tray 3 can more conveniently rotate when the atress is even.
When the multi-station die holder for the punch press is used, firstly, blanks are placed in two groups of processing grooves 501, then, a hydraulic cylinder 9 is controlled to lift a motor box 11 upwards, a first butt joint 13 and a second butt joint 14 are in butt joint, a lower die tray 3 is supported by a turntable bearing 12, then, a motor 10 is started to drive the lower die tray to rotate, the two groups of processing grooves 501 with the blanks placed are rotated to the position right below two groups of upper dies 201, the two groups of processing grooves 501 are aligned with the two groups of upper dies 201 respectively, and then, a punch press is started to process the blanks; through placing embryo material and lower mould tray pivoted mode in the processing groove 501, need not artifical centre gripping, make the workman be difficult for by the machine accidental injury, safer, the processing size is more accurate moreover.
When the machining is finished, the hydraulic cylinder 9 is controlled to lift the motor box 11 upwards, then the motor 10 is started to drive the lower die tray 3 to rotate, so that one group of machined machining grooves 501 rotate to be right below the limiting rings 6, the output ends of the hydraulic ejector rods 8 are controlled to extend to penetrate through the ejection holes 304, the workpiece in the machining grooves 501 is ejected, and in the process of ejecting the workpiece, the limiting rings 6 can clamp the lower die 5 to avoid the ejection of the lower die 5; the step of taking out the forging piece is not needed to be assisted manually through the hydraulic ejector rod 8 and the limiting ring 6, the ejection step is simple and convenient, and the working efficiency is further improved.
Through being provided with three groups of bed dies 5, form three processing stations to through the rotation of bed die tray 3, make form station rotation between three groups of bed dies 5, when two of them groups of bed dies 5 are located the punching press of upper die 201 below, the finished piece of the ejecting processing of another group of bed dies 5 below spacing ring 6, through this kind of design, further improved work efficiency. When needed, the lower mold 5 includes but is not limited to three sets, and the upper mold includes but is not limited to two sets.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A multi-station die holder for a punch press is characterized in that: comprises a lower die holder (1), an upper die holder (2), a lower die tray (3) and a rotating mechanism (4); the lower die base (1) is provided with a tray groove (101), the lower die tray (3) is placed in the tray groove (101), the lower die tray (3) is provided with a plurality of groups of station grooves (301), and a lower die (5) is fixedly arranged in the station grooves (301); the bottom of the tray groove (101) is provided with a first mounting groove (102), the rotating mechanism (4) is fixedly arranged in the first mounting groove (102), the output end of the rotating mechanism (4) is arranged below the lower die tray (3), the central axis of the output shaft of the rotating mechanism (4) coincides with the central axis of the lower die tray (3), and the upper die base (2) is arranged above the lower die tray (3); one or more groups of upper dies (201) are fixedly arranged at the lower end of the upper die holder (2); the upper end of the tray groove (101) is fixedly provided with a limiting ring (6) and a plurality of groups of limiting blocks (7) respectively, the bottom of the tray groove (101) is also provided with a second mounting groove (103), the second mounting groove (103) is positioned right below the limiting ring (6), a hydraulic ejector rod (8) is fixedly arranged in the second mounting groove (103), and the central axis of an output shaft of the hydraulic ejector rod (8) coincides with the central axis of the limiting ring (6); a processing groove (501) is formed in the lower die (5), the processing groove (501) penetrates through the lower die (5), the inner diameter of the limiting ring (6) is larger than the maximum inner diameter of the processing groove (501), and the inner diameter of the limiting ring (6) is smaller than the minimum outer diameter of the processing groove (501); a material ejection hole (304) is formed in the bottom of the station groove (301), and one end of the material ejection hole (304) is communicated with the processing groove (501); the output shaft of the hydraulic ejector rod (8) can movably penetrate through the ejection hole (304).
2. The multi-station die holder for a punch press according to claim 1, wherein: the upper die (201) is provided with two groups; the station grooves (301) are arranged in three groups, the three groups of station grooves (301) are arranged in a regular triangle, and the center distances of the three groups of station grooves (301) are equal to the center distances of the two groups of upper dies (201).
3. The multi-station die holder for a punch press according to claim 2, wherein: the limiting ring (6) is positioned on one side, far away from the upper die holder (2), of the lower die holder (1), and the connecting line between the center of the limiting ring (6) and the center of the tray groove (101) is perpendicular to the connecting line between the centers of the two groups of upper dies (201).
4. The multi-station die holder for a punch press according to claim 1 or 2, wherein: the automatic feeding device is characterized in that an internal thread seat (302) is arranged in the station groove (301), the outer wall of the internal thread seat (302) is connected with the inner wall of the station groove (301) through damping springs (303), the damping springs (303) are arranged in an annular array, the lower die (5) is arranged in the internal thread seat (302) in a threaded mode, and one end of the ejection hole (304) penetrates through the internal thread seat (302) and is communicated with the processing groove (501).
5. The multi-station die holder for a punch press according to claim 1, wherein: the lower die tray (3) and the tray groove (101) are both cylindrical, the lower die tray (3) is in clearance fit with the tray groove (101), the balls (305) are rotatably arranged on the side wall of the lower die tray (3), and the annular arrays of the balls (305) are arranged on the side wall of the lower die tray (3).
6. The multi-station die holder for a punch press according to claim 1, wherein: the rotating mechanism (4) comprises a hydraulic cylinder (9) and a motor (10); one end fixedly connected with motor case (11) of pneumatic cylinder (9) output shaft, motor (10) joint is fixed in motor case (11), motor case (11) top is located to one end of motor (10) output shaft, motor (10) output shaft's one end fixedly connected with first butt joint head (13), be provided with cross lug on first butt joint head (13).
7. The multi-station die holder for the punch press according to claim 5 or 6, wherein: the center of the bottom of the lower die tray (3) is fixedly provided with a second butt joint (14), the second butt joint (14) is provided with a cross-shaped groove, and the cross-shaped groove and the cross-shaped protruding block are correspondingly arranged.
8. The multi-station die holder for a punch press according to claim 6, wherein: the upper end of the motor box (11) is fixedly provided with a turntable bearing (12), the center of the turntable bearing (12) is provided with a through hole, the through hole is communicated with the inside of the motor box (11), and the first butt joint (13) is positioned in the through hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010904688.1A CN112059088B (en) | 2020-09-01 | 2020-09-01 | Multi-station die holder for punch press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904688.1A CN112059088B (en) | 2020-09-01 | 2020-09-01 | Multi-station die holder for punch press |
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| CN112059088A CN112059088A (en) | 2020-12-11 |
| CN112059088B true CN112059088B (en) | 2024-06-25 |
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| CN115121646B (en) * | 2022-06-18 | 2023-05-23 | 江苏兆铝金属制品有限公司 | Complete die set of automobile LED lamp radiator |
| CN116727591B (en) * | 2023-07-03 | 2023-12-29 | 江阴市恒润重工股份有限公司 | Multi-station gear hot die forging press |
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| CN213002438U (en) * | 2020-09-01 | 2021-04-20 | 东莞市海洛实业有限公司 | Multi-station die holder for punch press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU480580A1 (en) * | 1973-07-04 | 1975-08-15 | Барнаульский завод механических прессов | Stamp holder of multi-position sheet-press automatic press |
| CN210789085U (en) * | 2019-10-24 | 2020-06-19 | 嘉兴坤德精密机械有限公司 | Automatic rotating discharging device for forge piece production |
| CN110788211B (en) * | 2019-11-08 | 2021-12-17 | 青岛恒利包装有限公司 | Forging punch die capable of reducing workpiece abrasion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213002438U (en) * | 2020-09-01 | 2021-04-20 | 东莞市海洛实业有限公司 | Multi-station die holder for punch press |
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