CN114654430B - Double-speed multifunctional electric hammer and use method thereof - Google Patents
Double-speed multifunctional electric hammer and use method thereof Download PDFInfo
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- CN114654430B CN114654430B CN202210222852.XA CN202210222852A CN114654430B CN 114654430 B CN114654430 B CN 114654430B CN 202210222852 A CN202210222852 A CN 202210222852A CN 114654430 B CN114654430 B CN 114654430B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
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Abstract
The invention discloses a double-speed multifunctional electric hammer and a use method of the electric hammer, the double-speed multifunctional electric hammer comprises a hammering shovel, an electric hammer main body, a gear shifting poking piece, a power part and a hydraulic part, wherein the hammering shovel comprises a left hammering shovel and a right hammering shovel, a hydraulic cylinder is arranged between the left hammering shovel and the right hammering shovel, the hammering shovel is connected through the hydraulic cylinder to form a complete hammering shovel, the hammering shovel is arranged on the electric hammer main body in a sliding manner, the electric hammer main body can strike the hammering shovel to vibrate back and forth when being started, and the power part is positioned in the electric hammer main body and provides power for the electric hammer main body. The invention provides a double-speed multifunctional electric hammer and a use method thereof, wherein when the double-speed multifunctional electric hammer is clamped by a wall body, a hammering shovel can be automatically opened and closed to enlarge a clamped hole, so that the hammering shovel can be easily taken out, an operator is not required to stop to pry the hammer forcefully, the convenience of the electric hammer is improved, the practical service life of the electric hammer is prolonged, and the labor efficiency of an operator is improved.
Description
Technical Field
The invention relates to the technical field of electric hammers, in particular to a double-speed multifunctional electric hammer and a using method of the electric hammer.
Background
Generally, an electric hammer rotates an operation lever to select a striking mode, a rotation mode, or a striking and rotation mode, and can transmit the striking and rotation from a motor to a tool provided at a distal end simultaneously or independently via a striking mechanism and a rotation driving mechanism;
for the electric hammer, the selection of the operation mode is performed by a mode switching mechanism, which is provided with a clutch on the striking mechanism and the rotation driving mechanism, respectively, and connects or blocks the rotation force from the motor to the striking mechanism or the rotation driving mechanism;
but when the electric hammer strikes the operation, it is because powerful striking power, easily with the hammering shovel nail of front end into the wall in, and hammering shovel and wall body closely fixed together this moment to make hammering shovel by the card dead, make the operator difficult to take it off, and easily pry the electric hammer bad when prying by force.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-speed multifunctional electric hammer and a use method thereof.
In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides a multi-functional electric hammer of double speed, includes hammering shovel, electric hammer main part, shift plectrum, power division and hydraulic pressure division, hammering shovel includes left hammering shovel and right hammering shovel, is provided with the pneumatic cylinder between the two, and forms complete hammering shovel through the pneumatic cylinder connection, hammering shovel slides and sets up in the electric hammer main part, the electric hammer main part can beat hammering shovel when opening and make its back-and-forth vibration, power division is located the electric hammer main part, and it provides power for the electric hammer main part, hydraulic pressure division sets up in the electric hammer main part, and it includes the piston hydro-cylinder, be connected through oil pipe between piston hydro-cylinder and the pneumatic cylinder, power division includes motor, carousel and connecting rod, the carousel sets up on the motor, be provided with the cylinder on the carousel, and be provided with first axis of rotation on the pneumatic lever of cylinder, long slotted hole has been seted up to connecting rod one end, and the connecting rod passes through the hole and slides and set up on first axis of rotation, and the other end rotation of connecting rod sets up on the piston hydro-cylinder, and can change the position that first axis of rotation is located the carousel through the cylinder expansion and contraction.
The hydraulic part can automatically supply oil to the hydraulic cylinder when the hammering shovel is clamped in the wall, so that the left hammering shovel and the right hammering shovel can automatically open, the clamped hole is enlarged, the clamping hole is convenient to take out, and the opening is simultaneously opened and restored to be carried out alternately, so that the hammering shovel can be conveniently taken out from the clamped hole, and meanwhile, when the hammering shovel is carried out alternately, the degree of each time of enlarging is increased, and the hammering shovel is more convenient to take out from the clamped hole.
In the above scheme, preferably, the piston cylinder comprises a cylinder body and a piston rod, the piston rod is arranged in the cylinder body in a sliding manner, hydraulic oil is arranged in the cylinder body, the front end of the piston rod is provided with a connecting plate, a second rotating shaft is arranged on the connecting plate, the other end of the connecting rod is rotationally connected to the second rotating shaft, a first elastic piece is further sleeved on the piston rod, and the two ends of the piston rod are respectively propped against the connecting plate and the cylinder body.
The hydraulic cylinder has the beneficial effects that after the tensile force disappears, the piston rod can automatically reset, so that the hydraulic oil in the hydraulic cylinder returns to the cylinder body again.
In the above scheme, preferably, the hammering shovel is provided with the multiunit pneumatic cylinder, and is provided with the oil inlet on the hammering shovel, and it communicates with multiunit pneumatic cylinder, and communicates with the oil outlet on the cylinder body.
The left hammering shovel and the right hammering shovel can be spread in parallel.
In the above scheme, preferably, the cylinder rear is provided with still that inflates the device, and it includes and inflates pole, second elastic component and the cylinder of inflating, and the pole of inflating slides and sets up in the cylinder of inflating, and the second elastic component also slides and sets up in the cylinder of inflating, and is located the pole front end of inflating, the cylinder front end of inflating is connected with the air inlet of cylinder.
In the above scheme, preferably, the shifting plectrum rotates and sets up on the electric hammer main part, and is provided with circular lug on it, the pump pole tail end is convex design, and it surpasss the carousel outer wall, and when rotating, pump pole can press and touch on circular lug.
The rotary table has the beneficial effects that the rotary table can be inflated by the air cylinder every time the rotary table rotates.
In the above aspect, preferably, the first rotating shaft is located at a center position of the turntable when in the initial position.
The connecting rod has the beneficial effect that when the connecting rod is not clamped, the connecting rod does not displace.
In the above aspect, preferably, the length of the long slot hole is greater than the radius of the turntable, and in the initial position, one end of the long slot hole is propped against the first rotating shaft.
A method for using a double-speed multifunctional electric hammer,
s1, installing a hammering shovel on the electric hammer main body to enable the hammering shovel to work normally.
And S2, when the hammering shovel is clamped in the wall body, the electric hammer main body is pulled backwards, and meanwhile, the electric hammer is in an opening state.
And S3, the hammering shovel is pressed on the pressing switch, and the turntable rotates to drive the inflating device to inflate the air cylinder so as to extend forwards.
S4: the turntable rotates to drive the connecting rods to move together, so that the piston rods press hydraulic oil in the cylinder into the hydraulic cylinder, the left hammering shovel and the right hammering shovel are propped against each other to prop up the clamped hole, then the holes are combined, and after repeated times, the hole is propped up, so that the hydraulic oil can be taken out conveniently.
The beneficial effects of the invention are as follows: the invention provides a double-speed multifunctional electric hammer and a use method thereof, wherein when the double-speed multifunctional electric hammer is clamped by a wall body, a hammering shovel can be automatically opened and closed to enlarge a clamped hole, so that the hammering shovel can be easily taken out, an operator is not required to stop to pry the hammer forcefully, the convenience of the electric hammer is improved, the practical service life of the electric hammer is prolonged, and the labor efficiency of an operator is improved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a cross-sectional view of the internal structure of the present invention.
Fig. 4 is a schematic view of the hammering shovel according to the present invention.
Fig. 5 is a cross-sectional view of the hammering shovel of the present invention.
Fig. 6 is an enlarged view of a portion of the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: with reference to figures 1 to 6 of the drawings,
the utility model provides a multi-functional electric hammer of double speed, includes hammering shovel 1, electric hammer main part 2, shift plectrum 3, power portion 4 and hydraulic pressure portion 5, hammering shovel 1 includes left hammering shovel 11 and right hammering shovel 12, still be provided with pneumatic cylinder 13 on the left hammering shovel 11, telescopic link on it sets up on right hammering shovel 12, still be provided with oil inlet 14 on the left hammering shovel 11, left hammering shovel 11 and right hammering shovel 12 merge together and form hammering shovel 1, pneumatic cylinder 13 is provided with the multiunit, and all is connected with oil inlet 14 for can parallel the opening and shutting between left hammering shovel 11 and the right hammering shovel 12, circular arc long recess 15 has still been seted up on the installation piece of left hammering shovel 11 tail end, and its installation head 21 cooperation setting on the electric hammer main part 2 makes hammering shovel 1 can the back and forth slip, just the installation head 21 department of electric hammer main part 2 front end is provided with the pressure touch switch, when hammering shovel 1 slides forward, can the pressure touch switch.
After hydraulic oil enters the hydraulic cylinder 13, the left hammering shovel 11 and the right hammering shovel 12 can be opened in parallel, and after the hydraulic oil in the hydraulic cylinder is pumped away, the left hammering shovel 11 and the right hammering shovel 12 are closed automatically.
The hydraulic part 5 comprises a piston cylinder 51, which comprises a cylinder body 511 and a piston rod 512, wherein the piston rod 512 is slidably arranged in the cylinder body 511, hydraulic oil is arranged in the cylinder body 511 and is connected with the oil inlet 14 through an oil pipe, a connecting plate 513 is arranged at the front end of the piston rod 512, a second rotating shaft 514 is arranged on the connecting plate 513, a first elastic piece 52 is further sleeved on the piston rod 512, and two ends of the first elastic piece are respectively abutted against the connecting plate 513 and the cylinder body 511.
In the initial state, because the first elastic member 52 acts, the piston rod 512 is in the extended state, and the hydraulic oil in the hydraulic cylinder 13 is in the cylinder 511, so that the left hammering shovel 11 and the right hammering shovel 12 are in the closed state, when the piston rod 512 is subjected to the backward pulling force, the piston rod slides backward, so that the hydraulic oil is pressed into the hydraulic cylinder 13 to pinch, so that the left hammering shovel 11 and the right hammering shovel 12 are separated in parallel, and when the pulling force disappears, the piston rod 512 is restored to the initial state under the action of the first elastic member 52, so that the hydraulic oil is returned to the cylinder 511 to the right, so that the left hammering shovel 11 and the right hammering shovel 12 are combined again.
The gear shifting sheet 3 is rotatably arranged on the electric hammer main body 2, the gear shifting sheet 3 is provided with a round lug 31, when the electric hammer needs to perform striking operation, after the gear shifting sheet 3 is shifted to a striking gear, a switch is pressed down, the electric hammer main body 2 enables the hammering shovel 1 to vibrate back and forth, the power part 4 and the hydraulic part 5 are both arranged inside the electric hammer main body 2, the power part 4 comprises a motor 41, a rotary disc 42, a connecting rod 44 and an inflating device 45, the rotary disc 42 is arranged on the motor 41, the rotary disc 42 is provided with an air cylinder 43, a pneumatic rod 431 of the air cylinder 43 is provided with a first rotating shaft 432, one end of the connecting rod 44 is provided with a slotted hole 441, the connecting rod 44 is slidably arranged on the first rotating shaft 432 through the slotted hole 441, the other end of the connecting rod 44 is rotatably connected to a second rotating shaft 514, the inflating device 45 is arranged behind the air cylinder 43, the rotary table 42 is also arranged on the rotary table 42, which comprises an air pumping rod 451, a second elastic piece 452 and an air pumping cylinder 453, wherein the air pumping rod 451 is arranged in the air pumping cylinder 453 in a sliding manner, the second elastic piece 452 is also arranged in the air pumping cylinder 453 in a sliding manner, two ends of the second elastic piece are respectively propped against the front end of the air pumping rod 451 and the front end of the inner wall of the air pumping cylinder 453, the front end of the air pumping cylinder 453 is communicated with the interior of the air cylinder 43, a one-way air inlet valve is arranged on a channel, the front end of the air pumping cylinder 453 is also provided with an air pumping cylinder air inlet hole 454, the air pumping cylinder air inlet hole 454 is also provided with a one-way air inlet valve, the interior of the air cylinder 43 is also provided with a third elastic piece 433 in a sliding manner, two ends of the third elastic piece 433 are respectively propped against the piston surface of the air pumping rod 431 and the front end wall of the inner hole of the air cylinder 43, the air outlet hole 434 is also provided with an electromagnetic air outlet valve, which is controlled by a pressure contact switch on the mounting head 21.
After the gear shifting sheet 3 is shifted to the striking gear, the round bump 31 thereon faces the rotary table 42, at this time, the electric hammer is aligned to the wall surface to be operated, the hammering shovel 1 is propped against the wall surface, and the electric hammer main body 2 is held by a hand, so that the hammering shovel 1 slides backwards relative to the electric hammer main body 2, thereby starting the normal hammering operation, at this time, the motor 41 rotates to drive the rotary table 42 to rotate, the inflating rod 451 on the inflating device 45 on the rotary table 42 does not rotate for one circle to press and contact the round bump 31 once, thereby driving air into the air cylinder 43, at this time, the hammering shovel 1 does not press and contact the press and contact switch, therefore, at this time, the electromagnetic air outlet valve is in an open state, thereby enabling the pressed air to run out from the electromagnetic air outlet valve, and therefore, the pneumatic rod 431 does not move, so that the position of the first rotating shaft 432 does not move, or is in the center position of the rotary table 42.
When the hammering shovel 1 is clamped, a person manually holds the hammering shovel 1 on the electric hammer main body 2 to pull the hammering shovel 1 backwards, so that the hammering shovel 1 slides forwards relative to the electric hammer main body 2 and is pressed on the pressing switch, the electromagnetic air outlet valve is controlled to be closed, the air pumping device 45 pumps air into the air cylinder 43, the air rod 431 slides forwards a little by a little at every rotation of the rotary table 42, the first rotary shaft 432 moves towards the periphery of the rotary table 42, after the first rotary shaft 432 moves out of the circle center, the rotary table 42 rotates each time, the first rotary shaft 432 rotates around the circle center, when the hammering shovel 1 moves backwards relative to the hydraulic part 5, the connecting plate 513 is driven to slide backwards together under the action of the connecting rod 44, so that the piston rod 512 slides backwards, hydraulic oil is pressed into the hydraulic cylinder 13, the left hammering shovel 11 and the right hammering shovel 12 are separated parallelly, so that a large clamped hole is formed, when the first rotary shaft 432 moves forwards relative to the hydraulic part 5, the piston rod 512 slides forwards under the action of the first elastic piece 52, hydraulic oil returns into the cylinder 511 again, the left hammering shovel 11 and the right hammering shovel 11 is pressed out of the hole 12, and the distance between the left hammering shovel 12 and the left hammering shovel 12 is increased, and the left hammering shovel 12 is opened more, so that the distance is increased, and the distance between the left hammering shovel 12 and the left hammering shovel 12 is increased, and the inside the hole is opened, and the distance is increased.
The working principle or the using method is as follows:
after the gear shifting sheet 3 is shifted to the striking gear, the round protruding block 31 on the gear shifting sheet faces the rotary disc 42, at the moment, the electric hammer is aligned to the wall surface to be operated, the hammering shovel 1 is propped against the wall surface, and a hand is held on the electric hammer main body 2, so that the hammering shovel 1 slides backwards relative to the electric hammer main body 2, normal hammering operation is started, at the moment, the rotary disc 42 is driven to rotate by rotation of the motor 41, the air pumping rod 451 on the air pumping device 45 on the gear shifting sheet is not rotated for one circle to press and touch the round protruding block 31 once on the rotary disc 42, so that air is pumped into the air cylinder 43, at the moment, the hammering shovel 1 is not pressed and touched on the press and touch switch, therefore, at the moment, the electromagnetic air outlet valve is in an open state, so that the pressed air runs out from the electromagnetic air outlet valve, and therefore, the pneumatic rod 431 does not move, and the position of the first rotating shaft 432 is not moved, or is in the center of the rotary disc 42.
When the hammering shovel 1 is clamped, a person manually holds the hammering shovel 1 on the electric hammer main body 2 to pull the hammering shovel 1 backwards, so that the hammering shovel 1 slides forwards relative to the electric hammer main body 2 and is pressed on the pressing switch, the electromagnetic air outlet valve is controlled to be closed, the air pumping device 45 pumps air into the air cylinder 43, the air rod 431 slides forwards a little by a little at every rotation of the rotary table 42, the first rotary shaft 432 moves towards the periphery of the rotary table 42, after the first rotary shaft 432 moves out of the circle center, the rotary table 42 rotates each time, the first rotary shaft 432 rotates around the circle center, when the hammering shovel 1 moves backwards relative to the hydraulic part 5, the connecting plate 513 is driven to slide backwards together under the action of the connecting rod 44, so that the piston rod 512 slides backwards, hydraulic oil is pressed into the hydraulic cylinder 13, the left hammering shovel 11 and the right hammering shovel 12 are separated parallelly, so that a large clamped hole is formed, when the first rotary shaft 432 moves forwards relative to the hydraulic part 5, the piston rod 512 slides forwards under the action of the first elastic piece 52, hydraulic oil returns into the cylinder 511 again, the left hammering shovel 11 and the right hammering shovel 11 is pressed out of the hole 12, and the distance between the left hammering shovel 12 and the left hammering shovel 12 is increased, and the left hammering shovel 12 is opened more, so that the distance is increased, and the distance between the left hammering shovel 12 and the left hammering shovel 12 is increased, and the inside the hole is opened, and the distance is increased.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; 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 (6)
1. Double-speed multifunctional electric hammer, its characterized in that: including hammering shovel (1), electric hammer main part (2), shift plectrum (3), power division (4) and hydraulic part (5), hammering shovel (1) are including left hammering shovel (11) and right hammering shovel (12), are provided with pneumatic cylinder (13) between the two, and form complete hammering shovel (1) through pneumatic cylinder (13) connection, hammering shovel (1) slides and sets up on electric hammer main part (2), electric hammer main part (2) can beat hammering shovel (1) when opening and make its back-and-forth vibrations, power division (4) are located electric hammer main part (2), and it provides power for electric hammer main part (2), hydraulic part (5) set up in electric hammer main part (2), and it includes piston cylinder (51), be connected through oil pipe between piston cylinder (51) and the pneumatic cylinder (13), power division (4) are including motor (41), carousel (42) and connecting rod (44), carousel (42) set up on motor (41), be provided with on carousel (42) and pneumatic cylinder (43) and pneumatic cylinder (431) are provided with slotted hole (44), the connecting rod (44) is arranged on the first rotating shaft (432) in a sliding way through the long slot hole (441), the other end of the connecting rod (44) is arranged on the piston oil cylinder (51) in a rotating way, and the position of the first rotating shaft (432) on the turntable (42) can be changed through the expansion and the contraction of the air cylinder (43);
the piston cylinder (51) comprises a cylinder body (511) and a piston rod (512), the piston rod (512) is arranged in the cylinder body (511) in a sliding mode, hydraulic oil is arranged in the cylinder body (511), a connecting plate (513) is arranged at the front end of the piston rod (512), a second rotating shaft (514) is arranged on the connecting plate (513), the other end of the connecting rod (44) is rotationally connected to the second rotating shaft (514), a first elastic piece (52) is sleeved on the piston rod (512), and two ends of the first elastic piece are respectively propped against the connecting plate (513) and the cylinder body (511);
the hammering shovel (1) is provided with a plurality of groups of hydraulic cylinders (13), and the hammering shovel (1) is provided with an oil inlet (14) which is communicated with the plurality of groups of hydraulic cylinders (13) and is communicated with oil outlet holes on the cylinder body (511).
2. The dual-speed multi-function electric hammer of claim 1, wherein: the rear of the air cylinder (43) is further provided with an air pumping device (45), the air pumping device comprises an air pumping rod (451), a second elastic piece (452) and an air pumping cylinder (453), the air pumping rod (451) is arranged in the air pumping cylinder (453) in a sliding mode, the second elastic piece (452) is also arranged in the air pumping cylinder (453) in a sliding mode and located at the front end of the air pumping rod (451), and the front end of the air pumping cylinder (453) is connected with an air inlet of the air cylinder (43).
3. The dual-speed multi-function electric hammer of claim 2, wherein: the gear shifting pulling piece (3) is rotatably arranged on the electric hammer main body (2), a round protruding block (31) is arranged on the gear shifting pulling piece, the tail end of the inflating rod (451) is in a circular arc shape, the tail end of the inflating rod exceeds the outer wall of the rotary table (42), and when the rotary table (42) rotates, the inflating rod (451) can be pressed on the round protruding block (31).
4. The dual-speed multi-function electric hammer of claim 1, wherein: the first rotating shaft (432) is positioned at the center of the turntable (42) when in the initial position.
5. The dual-speed multi-function electric hammer of claim 1, wherein: the length of the long groove hole (441) is larger than the radius of the rotary disc (42), and one end of the long groove hole (441) is propped against the first rotary shaft (432) in the initial position.
6. Use of a double-speed multifunctional electric hammer according to any of the claims 1-5, characterized in that:
s1, mounting a hammering shovel (1) on an electric hammer main body (2) to enable the hammering shovel to work normally;
s2, when the hammering shovel (1) is clamped in the wall body, the electric hammer main body (2) is pulled backwards, and meanwhile, the electric hammer is in an open state;
s3, the hammering shovel (1) is pressed on the pressing switch, and the turntable (42) rotates to drive the inflating device (45) to inflate the air cylinder (43) so as to extend forwards;
s4: the turntable (42) rotates to drive the connecting rod (44) to move together, so that the piston rod (512) presses hydraulic oil in the cylinder body (511) into the hydraulic cylinder (13), the left hammering shovel (11) and the right hammering shovel (12) are propped up against each other, the clamped holes are supported, then the holes are combined, and after repeated times, the holes are supported and are convenient to take out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222852.XA CN114654430B (en) | 2022-03-09 | 2022-03-09 | Double-speed multifunctional electric hammer and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222852.XA CN114654430B (en) | 2022-03-09 | 2022-03-09 | Double-speed multifunctional electric hammer and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114654430A CN114654430A (en) | 2022-06-24 |
| CN114654430B true CN114654430B (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210222852.XA Active CN114654430B (en) | 2022-03-09 | 2022-03-09 | Double-speed multifunctional electric hammer and use method thereof |
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| CN (1) | CN114654430B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0426918A1 (en) * | 1989-11-09 | 1991-05-15 | Louis N. Giannuzzi | Automatic setting tool for masonry anchors |
| KR100990201B1 (en) * | 2010-05-26 | 2010-10-29 | 김미선 | Variable geometry expandable hammer |
| US8602124B2 (en) * | 2010-12-29 | 2013-12-10 | Medical Enterprises, Llc | Electric motor driven tool for orthopedic impacting |
| JP5082051B2 (en) * | 2011-02-05 | 2012-11-28 | アピュアン株式会社 | AIR HAMMER TOOL, AND METHOD OF ADJUSTING BATTLE FORCE OF THE AIR HAMMER TOOL |
| CN109622849B (en) * | 2018-12-28 | 2021-04-09 | 山东泰和能源股份有限公司 | Shaft blind hole radial rotary swaging and finish forging process and radial rotary swaging device |
| CN113857873A (en) * | 2021-09-29 | 2021-12-31 | 浙江铂动工贸有限公司 | Plate stamping equipment suitable for multi-piece type wheel hub |
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- 2022-03-09 CN CN202210222852.XA patent/CN114654430B/en active Active
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