CN112589034B - Righting device for crank press blank and working method - Google Patents
Righting device for crank press blank and working method Download PDFInfo
- Publication number
- CN112589034B CN112589034B CN202011504760.8A CN202011504760A CN112589034B CN 112589034 B CN112589034 B CN 112589034B CN 202011504760 A CN202011504760 A CN 202011504760A CN 112589034 B CN112589034 B CN 112589034B
- Authority
- CN
- China
- Prior art keywords
- roller
- gear sleeve
- guide groove
- rotating arm
- clamp
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004080 punching Methods 0.000 claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 50
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
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
- B21J13/10—Manipulators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention provides a straightening device for a crank press blank and a working method, wherein the straightening device comprises a feeding component, a straightening component, a clamping component, a driving component and a bracket; the feeding assembly is connected to the support and comprises a guide groove, a movable guide groove and a roller A, the guide groove is fixedly arranged on the support, the movable guide groove is arranged at the front end of the guide groove, the lower end of the movable guide groove is connected with a gear sleeve B, the gear sleeve B is meshed with the gear sleeve A, a rotating arm is connected to the gear sleeve A, and the rotating arm is connected with an arc plate; drive assembly is connected to gyro wheel A upper end, and gyro wheel A is located rocking arm upper portion, prevents to right the subassembly and blocks the walking route of mould at the punching press in-process, through being provided with spring A and spring B, after accomplishing the punching press, original position is got back to with the activity guide slot under the pulling of spring to the rocking arm, and is simple high-efficient, does not need manual recovery position, through the mode of gyro wheel A with gyro wheel B contact, compares with direct contact, and the gyro wheel can reduce frictional force, prevents that machine part from damaging.
Description
Technical Field
The invention relates to the technical field of crank presses, in particular to a straightening device for a crank press blank and a working method.
Background
A crank press is one of the most commonly used cold stamping devices and serves as a working platform for the cold stamping die. It has simple structure and convenient use. In a crank press, a slider is mounted on a crank shaft, vertically reciprocates within a stroke due to rotation of the crank shaft, and presses a workpiece against a die to form a desired product. A forging machine for converting the rotary motion of a motor into the linear reciprocating motion of a slider by a crank-slider mechanism to perform a forming process on a material.
In the working process of a crank press, a forged blank needs to be placed in, the method adopted at present mainly comprises the steps that a worker holds a manual clamp to clamp the forged blank, the forged blank needs to be clamped all the time after the forged blank is placed in a stamping position, the forged blank is kept fixed until the stamping is completed, the personal safety of an operator cannot be ensured due to the placing mode, the product quality cannot be ensured, the labor intensity is high, although a mechanical arm is also adopted to place the blank at present, the mechanical arm is complex in structure and high in cost, and a large amount of financial and manpower is needed for overhauling and subsequent maintenance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a straightening device for a crank press blank, the blank is sent into a lower die through a straightening assembly and is driven by a roller A, so that the die is prevented from blocking a walking route of the die in a pressing process by the straightening assembly, after the stamping is finished, a rotating arm and a movable guide groove return to the original positions under the pulling of a spring through the arrangement of the spring A and the spring B, the straightening device is simple and efficient, the position does not need to be manually restored, and the roller A and the roller B are in contact, so that the friction force can be reduced and the damage of mechanical parts can be prevented compared with a direct contact mode.
The invention also provides a working method of the righting device for the crank press blank.
A righting device for crank press blanks comprises a feeding component, a righting component, a clamping component, a driving component, a stamping component and a support;
the feeding assembly is connected to the support and comprises a guide groove, a movable guide groove and a roller A, the guide groove is fixedly arranged on the support, the movable guide groove is arranged at the front end of the guide groove, the lower end of the movable guide groove is connected with a gear sleeve B, the gear sleeve B is meshed with the gear sleeve A, a rotating arm is connected to the gear sleeve A and connected with an arc plate, the gear sleeve A and the gear sleeve B are respectively sleeved on the fixed shaft, and two ends of the fixed shaft are fixed to the shaft seat; the shaft seat is arranged on the bracket, the upper end of the roller A is connected with the driving assembly, and the roller A is positioned at the upper part of the rotating arm;
the centering assembly comprises a claw clamp A, a claw clamp B and a roller B, the claw clamp A is arranged on a gear sleeve C, the gear sleeve C is meshed with a gear sleeve D, the gear sleeve D is connected with the claw clamp B through a claw clamp rotating arm, the upper end of the roller B is connected with a driving assembly, the roller B is positioned on the upper side of the claw clamp rotating arm, the gear sleeve C and the gear sleeve D are respectively sleeved on a fixed shaft, and two ends of the fixed shaft are fixed on a shaft seat;
the stamping assembly comprises an upper die and a lower die, the upper die is arranged between the roller A and the roller B and connected with the driving assembly, the lower die is arranged between the claw clamp A and the claw clamp B and connected with the support, and the positions of the upper die and the lower die correspond to each other.
The driving assembly comprises a push rod, the lower end of the push rod is connected with a sliding block, the sliding block is arranged in a sliding rail on the support, and the lower end of the sliding block is connected with a roller A, an upper die and a roller B.
According to the technical scheme of the invention, preferably, a spring A is connected between the rotating arm and the movable guide groove, and a spring B is connected between the claw clamp rotating arm and the bracket.
According to the technical scheme of the invention, preferably, the lower die is provided with a semicircular groove, and the upper die is provided with a semicircular groove matched with the lower die.
According to the technical scheme of the invention, preferably, the gear sleeve A and the gear sleeve C are positioned on the same fixed shaft, and the gear sleeve B and the gear sleeve D are positioned on the same fixed shaft.
According to the technical scheme of the invention, preferably, the contact surface of the claw clamp rotating arm and the roller B is an inclined surface, and the claw clamp rotating arm part is provided with a horizontal convex part.
According to the technical scheme of the invention, preferably, the contact surface of the rotating arm and the roller A is an arc surface.
A working method of a righting device for a crank press blank specifically comprises the following steps:
(1) placing a rectangular blank in the guide groove, sliding the blank into the guide groove, contacting the front end of the blank with the arc plate, and vertically sliding the blank into the lower die under the blocking of the arc plate;
(2) the driving assembly controls the roller A, the upper die and the roller B to move downwards, the roller A contacts the rotating arm firstly, so that the gear sleeve A rotates 35 degrees outwards, the gear sleeve B rotates 35 degrees outwards under the driving of the gear sleeve A, and the arc plate and the movable guide groove rotate 35 degrees outwards;
(3) the driving assembly controls the roller A, the upper die and the roller B to continue to move downwards, the roller B contacts the jaw clamp rotating arm, the gear sleeve D rotates 30 degrees towards the center, the gear sleeve C rotates 30 degrees towards the center under the driving of the gear sleeve D, and the jaw clamp A and the jaw clamp B rotate towards the center to clamp and fix the blank;
(4) the driving assembly controls the roller A, the upper die and the roller B to continue moving downwards, the upper die contacts the blank, the roller B moves to the middle of the claw clamp rotating arm at the moment, and the roller B drives the gear sleeve D to rotate outwards by 35 degrees;
(5) the blank die-casting is completed, the driving assembly controls the roller A, the upper die and the roller B to move upwards, the spring A is connected between the rotating arm and the movable guide groove, the spring B is connected between the jaw clamp rotating arm and the bracket, and the jaw clamp A, the jaw clamp B, the arc plate and the movable guide groove are restored to the initial positions through the pulling of the spring A and the spring B;
(6) and taking down the finished product to complete the whole work.
The invention has the beneficial effects that:
1. during the subassembly is sent into the lower mould through righting to drive circular arc board and activity guide slot through gyro wheel A and rotate to the outside, make the upper die utensil in the downstream process, prevent to right the subassembly and block the walking route of mould in stamping process, can guarantee again simultaneously that the blank is accurate to fall into among the lower mould.
2. Through being provided with spring A and spring B, after accomplishing the punching press, the rocking arm returns original position under spring A's pulling, and the claw presss from both sides the rocking arm and returns original position under spring B's pulling, and is simple high-efficient, does not need manual recovery position, has practiced thrift manpower and time greatly.
3. Through the mode of gyro wheel A and gyro wheel B contact, compare with direct contact, the gyro wheel can reduce frictional force, prevents that the machine part that rigid collision caused from damaging.
4. Through gyro wheel B's motion for claw presss from both sides A, claw clamp B and merges fixed and right the blank earlier, and last mould contacts the back with the blank, and claw clamp A, claw clamp B open to it presss from both sides A, claw clamp B with the claw and bumps to avoid going up the mould, can guarantee the position of blank, can guarantee the cooperation of mould and bed die again simultaneously, and is simple high-efficient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the centralizer assembly of the present invention;
FIG. 3 is a schematic structural diagram of a roller A and a roller B according to the present invention;
FIG. 4 is a top view of the centralizer assembly of the present invention;
FIG. 5 is a schematic view of the structure of the present invention at step (2);
FIG. 6 is a schematic structural view of the present invention at step (3);
FIG. 7 is a schematic structural view of the present invention at step (4);
wherein, 1, a bracket; 2. a push rod; 3. a slider; 4. a roller B; 5. a roller A; 6. a gear sleeve A; 7. a gear sleeve B; 8. a guide groove; 9. a movable guide groove; 10. a jaw clamp A; 11. a jaw clamp B; 12. a claw clamp rotating arm; 13. a circular arc plate; 14. a rotating arm; 15. a fixed shaft; 16. a lower die; 17. an upper die; 18. a spring A; 19. a spring B; 20. a gear sleeve C; 21. a gear sleeve D; 22. a blank; 23. a horizontal protrusion.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for the purpose of describing the present invention but do not require that the present invention must be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood broadly, and may be, for example, welded or detachably connected; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.
Example 1:
as shown in the figure, the righting device for the crank press blank comprises a feeding assembly, a righting assembly, a clamping assembly, a driving assembly and a support 1; the support 1 is connected with a feeding assembly, the feeding assembly comprises a guide groove 8, an included angle of 30-60 degrees is formed between the guide groove 8 and the horizontal plane, a movable guide groove 9 and a roller A5, the guide groove 8 is fixedly arranged on the support 1, the movable guide groove 9 is movably arranged at the front end of the guide groove 8, the movable guide groove 9 is not connected with the guide groove 8, the lower end of the movable guide groove 9 is connected with a gear sleeve B7, a gear sleeve B7 is meshed with a gear sleeve A6, the gear sleeve A6 is connected with a rotating arm 14, the rotating arm 14 is connected with an arc plate 13, the inner arc surface of the arc plate 13 faces towards a blank 22, the gear sleeve A6 and the gear sleeve B7 are respectively sleeved on two fixed shafts 15, and two ends of the fixed shafts 15 are fixed on a shaft seat; the shaft seat is arranged on the bracket 1, the upper end of the roller A5 is connected with the slide block 3, and the roller A5 is positioned on the upper part of the rotating arm 14.
The righting assembly comprises a claw clamp A10 and a claw clamp B11, an arc plate is arranged at the front end of the claw clamp A10 and the front end of the claw clamp B11, the radian of the arc plate is matched with that of a blank 22, a claw clamp A10 is arranged on a gear sleeve C20, a gear sleeve C20 is meshed with a gear sleeve D21, the gear sleeve D21 is connected with a claw clamp B11 through a claw clamp rotating arm 12, the upper end of a roller B4 is connected with a sliding block 3, a roller B4 is positioned on the upper side of the claw clamp rotating arm 12, the gear sleeve C20 and the gear sleeve D21 are respectively sleeved on two fixed shafts 15, the stamping assembly comprises an upper die 17 and a lower die 16, the upper die 17 is arranged between a roller A5 and a roller B4, the upper die 17 is connected with the sliding block 3, the lower die 16 is arranged between a claw clamp A10 and a claw clamp B11, the lower die 16 is connected with a support 1, the upper die 17 and the lower die 16 are mutually corresponding in position, a spring A18 is connected between the rotating arm 14 and a movable clamp B359, and a spring support 19 is connected between the claw clamp B361. The lower die 16 is provided with a semicircular groove, and the upper die 17 is provided with a semicircular groove matched with the lower die 16.
The driving assembly comprises a push rod 2, the lower end of the push rod 2 is connected with a slide block 3, the upper end of the push rod 2 is connected with an engine through a crank, the slide block 3 is arranged in a slide rail on the support 1, the slide block 3 can vertically move relative to the support 1, and the lower end of the slide block 3 is connected with a roller A55, an upper die 17 and a roller B4. Gear sleeve A6 is located same fixed axle 15 with gear sleeve C20, gear sleeve B7 is located same fixed axle with gear sleeve D21, claw presss from both sides rocking arm 12 and gyro wheel B4 contact surface is the inclined plane, and claw presss from both sides rocking arm 12 portion and is equipped with horizontal convex part 23.
Example 2:
the working method of the righting device for the crank press blank has the specific structure as in embodiment 1, and specifically comprises the following steps:
(1) placing a rectangular blank 22 in the guide groove 8, sliding the blank 22 in through the guide groove 8, contacting the front end of the blank 22 with the arc plate 13 through the movable guide groove 9, and vertically sliding the blank 22 into the lower die 16 under the block of the arc plate 13;
(2) the driving assembly controls the roller A5, the upper die 17 and the roller B4 to move downwards, the roller A contacts the rotating arm firstly, as shown in fig. 5, the gear sleeve A6 rotates 35 degrees outwards, the gear sleeve B7 rotates 35 degrees outwards under the driving of the gear sleeve A6, and the circular arc plate 13 and the movable guide groove 9 rotate 35 degrees outwards; the upper die 17 is prevented from being blocked by the arc plate 13 and the movable guide groove 9 in the descending process;
(3) the driving assembly controls the roller A5, the upper die 17 and the roller B4 to move downwards continuously, as shown in the position of FIG. 6, the roller B4 contacts the claw clamp rotating arm 12, the gear sleeve D21 rotates towards the center by 30 degrees, the gear sleeve C20 rotates towards the center by 30 degrees under the driving of the gear sleeve D21, and the claw clamp A10 and the claw clamp B11 rotate towards the center to clamp and fix the blank 22;
(4) the driving assembly controls the roller A5, the upper die 17 and the roller B4 to move downwards continuously, as shown in the position of FIG. 7, the upper die 17 contacts the blank 22, the roller B4 moves to the middle of the claw clamping rotating arm 12, contacts the horizontal convex part 23 and moves downwards continuously, and the roller B4 drives the gear sleeve D21 to rotate 35 degrees outwards; preventing the jamming of the jaw a10, jaw B11 during the closing of the upper die 17 with the lower die 16;
(5) the blank die-casting is completed, the driving assembly controls the roller A5, the upper die 17 and the roller B4 to move upwards, the spring A18 is connected between the rotating arm 14 and the movable guide groove 9, the spring B19 is connected between the claw clamp rotating arm 12 and the bracket 1, and the claw clamp A10, the claw clamp B11, the arc plate 13 and the movable guide groove 9 are restored to the initial positions through the pulling of the spring A18 and the spring B19;
(6) and taking down the finished product to complete the whole work.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (2)
1. A righting device for crank press blanks comprises a stamping assembly, a driving assembly and a support; the punching press subassembly is connected to the support upside, is equipped with drive assembly on the punching press subassembly, its characterized in that: the automatic feeding device is characterized by further comprising a centering assembly, a clamping assembly and a feeding assembly, wherein the feeding assembly is connected to the support and comprises a guide groove, a movable guide groove and a roller A, the guide groove is fixedly arranged on the support, the movable guide groove is arranged at the front end of the guide groove, the lower end of the movable guide groove is connected with a gear sleeve B, the gear sleeve B is meshed with the gear sleeve A, a rotating arm is connected to the gear sleeve A and connected with an arc plate, the gear sleeve A and the gear sleeve B are sleeved on a fixed shaft, and two ends of the fixed shaft are fixed on shaft seats; the shaft seat is arranged on the bracket, the upper end of the roller A is connected with the driving assembly, and the roller A is positioned at the upper part of the rotating arm; the centering assembly comprises a claw clamp A and a claw clamp B, the claw clamp A is arranged on a gear sleeve C, the gear sleeve C is meshed with a gear sleeve D, the gear sleeve D is connected with the claw clamp B through a claw clamp rotating arm, the upper end of a roller B is connected with a driving assembly, the roller B is positioned on the upper side of the claw clamp rotating arm, the gear sleeve C and the gear sleeve D are respectively fixed on a shaft, the gear sleeve A and the gear sleeve C are positioned on the same fixed shaft, and the gear sleeve B and the gear sleeve D are positioned on the same fixed shaft; the stamping assembly comprises an upper die and a lower die, the upper die is arranged between the roller A and the roller B and is connected with the driving assembly, the lower die is arranged between the jaw clamp A and the jaw clamp B and is connected with the bracket, and the upper die and the lower die correspond to each other in position; the driving assembly comprises a push rod, the lower end of the push rod is connected with a sliding block, the sliding block is arranged in a sliding rail on the support, and the lower end of the sliding block is connected with a roller A, an upper die and a roller B;
a spring A is connected between the rotating arm and the movable guide groove, and a spring B is connected between the claw clamp rotating arm and the bracket;
the lower die is provided with a semicircular groove, and the upper die is provided with a semicircular groove matched with the lower die;
the contact surface of the claw clamp rotating arm and the roller B is an inclined plane, and a horizontal convex part is arranged at the claw clamp rotating arm part;
the contact surface of the rotating arm and the roller A is an arc surface.
2. The working method of the centralizing device for crank press blanks according to claim 1, comprising the following steps: (1) placing a rectangular blank in the guide groove, sliding the blank into the guide groove through the guide groove, contacting the arc plate at the front end of the blank, and vertically sliding the blank into the lower die under the blocking of the arc plate; (2) the driving assembly controls the roller A, the upper die and the roller B to move downwards, the roller A contacts the rotating arm firstly, so that the gear sleeve A rotates 35 degrees outwards, the gear sleeve B rotates 35 degrees outwards under the driving of the gear sleeve A, and the arc plate and the movable guide groove rotate 35 degrees outwards; (3) the driving assembly controls the roller A, the upper die and the roller B to continue to move downwards, the roller B contacts the jaw clamp rotating arm, the gear sleeve D rotates 30 degrees towards the center, the gear sleeve C rotates 30 degrees towards the center under the driving of the gear sleeve D, and the jaw clamp A and the jaw clamp B rotate towards the center to clamp and fix the blank; (4) the driving assembly controls the roller A, the upper die and the roller B to continue moving downwards, the upper die contacts the blank, the roller B moves to the middle of the claw clamp rotating arm at the moment, and the roller B drives the gear sleeve D to rotate outwards by 35 degrees; (5) the blank die-casting is completed, the driving assembly controls the roller A, the upper die and the roller B to move upwards, the spring A is connected between the rotating arm and the movable guide groove, the spring B is connected between the jaw clamp rotating arm and the bracket, and the jaw clamp A, the jaw clamp B, the arc plate and the movable guide groove are restored to the initial positions through the pulling of the spring A and the spring B; (6) and taking down the finished product to complete the whole work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504760.8A CN112589034B (en) | 2020-12-18 | 2020-12-18 | Righting device for crank press blank and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504760.8A CN112589034B (en) | 2020-12-18 | 2020-12-18 | Righting device for crank press blank and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112589034A CN112589034A (en) | 2021-04-02 |
| CN112589034B true CN112589034B (en) | 2022-09-16 |
Family
ID=75199391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011504760.8A Active CN112589034B (en) | 2020-12-18 | 2020-12-18 | Righting device for crank press blank and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112589034B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB839133A (en) * | 1956-08-14 | 1960-06-29 | Us Industries Inc | "transfer mechanism" |
| CN103394626A (en) * | 2013-08-09 | 2013-11-20 | 浙江正一机械有限公司 | Adjustable tongs mechanism capable of being turned over by 180 degrees of cold heading forming machine |
| CN108356198A (en) * | 2018-01-12 | 2018-08-03 | 江苏理研科技股份有限公司 | A kind of cavity plate with righting structure |
| CN109318433B (en) * | 2018-09-17 | 2024-03-19 | 山东乾元半导体科技有限公司 | LED packaging mold for PCB |
| CN208976861U (en) * | 2018-11-13 | 2019-06-14 | 张佃伟 | A kind of turnery processing lathe convenient for fixed material |
| CN210305304U (en) * | 2019-07-11 | 2020-04-14 | 山东芙诺鑫智能科技有限公司 | Automatic punching and riveting integrated equipment for channel |
| CN111229923A (en) * | 2020-02-17 | 2020-06-05 | 黄薇婷 | Continuous conveying and processing device for metal round pipe |
| CN111185522A (en) * | 2020-02-17 | 2020-05-22 | 黄薇婷 | Automatic processing device for metal round pipe |
-
2020
- 2020-12-18 CN CN202011504760.8A patent/CN112589034B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112589034A (en) | 2021-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4513602A (en) | Transfer device | |
| CN218310650U (en) | Automobile wheel hub forging device | |
| CN111545619A (en) | Stamping forming equipment for sheet metal parts | |
| CN211363576U (en) | Fixed adjustable-speed punching machine tool | |
| CN115647255A (en) | Sword processing equipment capable of automatically adjusting position of initial blank | |
| GB2038680A (en) | Kinematic drive, in particular for driving loading and unloading apparatus of machine tools such as presses, punches and the like | |
| CN112589034B (en) | Righting device for crank press blank and working method | |
| US20020023417A1 (en) | Packaging machine | |
| US4646600A (en) | Cutting press with tool magazine | |
| US4195564A (en) | Machine press | |
| CN105537556A (en) | Steel-aluminum die-cast cooling fin loading taker | |
| JP2001246418A (en) | Press die for edge bending | |
| CN217858483U (en) | Stamping manipulator workbench | |
| CN211490591U (en) | Clamp for broaching steel plate pin | |
| CN209937785U (en) | Opposite-impact hydraulic punch press | |
| CN218785163U (en) | Bearing ring forging line | |
| CN221658100U (en) | Plate shearing machine with autoloading function | |
| CN216991910U (en) | Synergistic mechanical arm | |
| CN114670253B (en) | Four-column cutting machine with automatic feeding and discharging functions | |
| CN217394615U (en) | Bar cutting device | |
| CN209792747U (en) | Shearing mechanism of plate shearing machine for producing supports | |
| CN214212699U (en) | Welding platform | |
| CN218744194U (en) | High-accuracy five metals stamping device of multi-angle | |
| CN213256400U (en) | Double-station guide press machine | |
| CN218396973U (en) | Raw material cutting device for bearing production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A centering device and working method for crank press blank Effective date of registration: 20230208 Granted publication date: 20220916 Pledgee: Shandong Tongsheng Financing Guarantee Co.,Ltd. Pledgor: SHANDONG HUAMIN STEEL BALL JOINT-STOCK Co.,Ltd. Registration number: Y2023980032266 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220916 Pledgee: Shandong Tongsheng Financing Guarantee Co.,Ltd. Pledgor: SHANDONG HUAMIN STEEL BALL JOINT-STOCK Co.,Ltd. Registration number: Y2023980032266 |