CN112338490A - Automatic feeding device of small bearing - Google Patents
Automatic feeding device of small bearing Download PDFInfo
- Publication number
- CN112338490A CN112338490A CN202011405693.4A CN202011405693A CN112338490A CN 112338490 A CN112338490 A CN 112338490A CN 202011405693 A CN202011405693 A CN 202011405693A CN 112338490 A CN112338490 A CN 112338490A
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- bearing
- storage bin
- connecting rod
- material rail
- rail
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- 239000000463 material Substances 0.000 claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/004—Feeding the articles from hoppers to machines or dispensers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/008—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes the parts being continuously transported through the machine during assembling or disassembling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/06—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines
- B65G47/08—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines spacing or grouping the articles during feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/88—Separating or stopping elements, e.g. fingers
- B65G47/8807—Separating or stopping elements, e.g. fingers with one stop
- B65G47/8815—Reciprocating stop, moving up or down in the path of the article
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles To Conveyors (AREA)
Abstract
An automatic feeding device for small bearings comprises a frame main body, a bearing storage bin, a limiting stop mechanism, a driving link mechanism and a bearing transfer material rail; the frame main body is provided with a material storage bin, a limiting stop mechanism, a driving connecting rod mechanism and a bearing transfer material rail are sequentially arranged above the material storage bin from top to bottom, and the limiting stop mechanism, the driving connecting rod mechanism and the bearing transfer material rail are conveyed in a matched mode; the bearing can be orderly placed in the bearing bin in multiple rows and multiple columns by a mechanical arm or manually, so that one-time multiple-batch feeding is realized for automatic rotor assembly of one shift or multiple shifts. The bearing slides the feeding through self gravity along the feed bin slope, make full use of the gravity of bearing itself and produced and remove kinetic energy, realize whole row of short-range removal of bearing, saved numerous and diverse transfer structure, simplified the feeding process.
Description
Technical Field
The invention relates to the technical field of automatic production of motor rotors, in particular to an automatic feeding device for a small bearing.
Background
It is known that, for small-sized motors with low noise and high efficiency (such as air conditioning motors, cleaner motors, etc.), two high-precision and ultra-silent small-sized deep groove ball bearings are generally used at two ends of a rotor. Generally, such bearings are delicate and delicate, and a slight vibration or impact may cause damage to a bearing channel, resulting in poor bearing sound, and when a rotor rotates at a high speed, such abnormal bearing sound is amplified, and a motor generates very loud noise. Therefore, the conventional small-part automatic feeding device, such as a combination of a vibrating disk and a linear feeder, cannot be applied to the bearing. This problem has plagued the motor industry all the time, and prior art can only adopt manpower to pay-off one by one and put into the pre-installation feed bin of rotor pressure equipment anchor clamps, realizes the bearing assembly of rotor, and production efficiency is very low. In the present day of gradually realizing industrial 4.0, an automatic feeding device of a small bearing is a technical problem to be solved urgently in order to realize the full-automatic production of a motor rotor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the automatic feeding device for the small bearing, so that the problem of full-automatic feeding of the small bearing is solved, and full-automatic production of large-batch motor rotors is facilitated.
The purpose of the invention is realized as follows: the utility model provides an automatic feeding device of small bearing which characterized in that: the device comprises a frame main body, a material storage bin, a limiting stopping mechanism, a driving connecting rod mechanism and a bearing transferring material rail; the frame main body is provided with a material storage bin, a limiting stop mechanism, a driving connecting rod mechanism and a bearing transfer material rail are sequentially arranged above the material storage bin from top to bottom, and the limiting stop mechanism, the driving connecting rod mechanism and the bearing transfer material rail are conveyed in a matched mode; the limiting stop mechanism comprises an air cylinder, a stop plate and a portal frame for fixing the air cylinder; the cylinder works to drive the stop plate to move up and down and is used for stopping or releasing a bearing in the storage bin; the driving connecting rod mechanism is provided with a motor, the motor is connected with a stud with a fixed lead, the stud is provided with a nut connecting rod for driving the bearing to move forwards, and the tail end of the stud is provided with a supporting bearing and a bearing seat; the bearing transferring material rail is arranged at the lower end of the material storage bin, the bearing transferring material rail is provided with a horizontal elongated slot, the end part of the nut connecting rod is matched with the horizontal elongated slot, and a slotted hole with the size equivalent to that of the bearing is arranged at the terminal end of the bearing transferring material rail; and a bearing press-fitting pre-waiting material channel is arranged right below a slotted hole of the bearing transferring material rail.
As a preferred technical scheme: the bottom surface of the storage bin for placing the bearing is provided with a slope, the inclination angle of the slope is alpha, and the angle is 1 degrees < alpha <44 degrees; the bearings roll by self gravity to feed the materials together in a whole row.
As a preferred technical scheme: the bearing enters a bearing press-fitting pre-waiting material channel through self gravity (or cylinder action).
As a preferred technical scheme: the motor can rotate positively and negatively.
The working principle is as follows: the automatic feeding device is arranged on a frame main body of the equipment, and when the bearings are fed, a large number of bearings are orderly placed in the storage bin row by row, column by column and radial along the slope of the bin from the transferring material rail. When the system works, the cylinder of the stop mechanism is limited to act, the stop plate falls down to stop all bearings in the storage bin above the transfer material rail, the bearings in the transfer material rail are slightly separated from the bearings in the storage bin, and the bearings in the transfer material rail are not pushed by the rest bearings in the storage bin. Then the motor drives the link mechanism to work, the motor generally adopts a stepping motor or a servo motor, the motor rotates forward to drive the stud to rotate, a nut connecting rod on the stud is pushed by the screw thread of the stud to continuously advance, the nut connecting rod moves for a fixed distance of one bearing thickness each time to drive the bearings on the transfer material rail to enter the slotted holes at the terminal of the material rail one by one, the bearings fall into the slotted holes through self gravity or the action of an air cylinder to enter the material rail to be pre-waiting for press mounting, and therefore the press mounting assembly of the bearings. After all the bearings on the transferring material rail are transferred and assembled, the motor drives the motor of the link mechanism to rotate reversely, the nut connecting rod rapidly returns to the original position, then the limiting stop mechanism working limiting plate goes upwards, a new row of bearings automatically slide along the slope to enter the lower transferring material rail due to self gravity, and a new round of automatic feeding and feeding action is started.
Has the advantages that:
the automatic feeding device for the small bearing provided by the invention has the following beneficial effects:
the bearings can be orderly placed in the bearing storage bin in multiple rows and multiple columns by a mechanical arm or a manual mode, and one-time multi-batch feeding is achieved for automatic rotor assembly of one shift or multiple shifts.
The bearing slides the feeding through self gravity along the feed bin slope, make full use of the gravity of bearing itself and produced and remove kinetic energy, realize whole row of short-range removal of bearing, saved numerous and diverse transfer structure, simplified the feeding process.
The bearing passes through the propelling movement feeding one by one of drive link mechanism, has avoided the bearing damage that the bearing collided each other and the vibration arouses, has avoided the production of bearing noise.
The transparent protective cover is arranged on the periphery of the whole device and is opened only when the bearing is loaded, so that the bearing is prevented from being polluted by dust and impurities in the air.
By the device, the problem of automatic feeding of the small bearing, which puzzles the industry for many years, is solved, and the full automation of the production process of the motor rotor is realized.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a sectional view 1 of example 1 of the present invention;
FIG. 3 is a sectional view 2 of example 1 of the present invention;
fig. 4 is a schematic view of a material storage bin and a limiting and stopping mechanism in embodiment 1 of the invention;
FIG. 5 is a schematic view of a motor-driven link mechanism and a bearing transfer rail according to embodiment 1 of the present invention;
fig. 6 is embodiment 2 of the present invention.
In example 1: 1. a frame body; 2. a bearing; 3. a material storage bin; 4. a limiting and stopping mechanism; 5. a drive link mechanism; 6. the bearing transfers the material rail; 7. bearing press fitting pre-waiting material channel bin; 8. an example rotor; 301. a bin ramp; 401. A cylinder; 402. a blocking plate; 403. combining the door frames; 501. a motor; 502. a stud; 503. a nut connecting rod; 504. a support bearing; 505. a bearing seat; 601. a long groove of the material rail; 602. a material rail; 603. a slot hole.
In example 2: A. a material storage bin; B. a bearing; C. a limiting and stopping mechanism; D. a drive link structure; d1, a cylinder; d2, a sliding connecting rod; d3, a balance guide rail; E. bearing press fitting is performed in advance for waiting for the material channel bin.
Detailed Description
The technical solutions in 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.
Example 1:
as shown in fig. 1-5, embodiment 1 of the present invention provides an automatic feeding device for small bearings, which includes a frame main body 1 of an apparatus, a storage bin 3 is mounted and fixed on the frame main body 1, the storage bin 3 is an open box-shaped structure (or a transparent cover capable of being opened is added on the storage bin 3), a bottom plate of the storage bin is set to be a slope 301, and an inclination angle of the slope 301 is 1 ° < α <45 °; a large number of bearings 2 are arranged in the storage bin 3, and during feeding, the bearings 2 are placed in the storage bin 3 in order along the slope of the bin, line by line and radial direction from a bearing transfer material rail 6 below the bin 3; assuming that the thickness of the bearing 2 is T and the number of the bearings arranged in each row is n, the inner width L of the storage bin 3 for arranging the bearings needs to satisfy nT < L < 1.5 nT.
The limiting stop mechanism 4 is fixed above the storage bin 3 and comprises an air cylinder 401, a stop plate 402 fixedly connected with the air cylinder and a gantry assembly 403 for fixing the air cylinder, wherein the air cylinder 401 works to drive the stop plate 402 to move up and down for stopping or releasing the bearing 2 in the storage bin 3.
The drive link mechanism 5 is disposed directly above the bearing transfer rail 6, and includes a stepping motor (or a servo motor) 501 capable of rotating forward and backward, a stud 502 having a fixed lead is connected to an end of the motor 501, a nut link 503 matched with a thread of the stud is disposed on the stud 502, and a bearing seat 505 for supporting a bearing 504 and fixing the bearing is disposed at a tail end of the stud 502.
The bearing transferring material rail 6 is arranged at the lower end of the material storage bin 3 and connected with the bin, a horizontal long groove 601 is arranged in the middle, the lower end of the nut connecting rod 503 is inserted into the groove to be matched with the groove, and the nut connecting rod 503 can stably move forwards or backwards when the motor rotates; one side of the material rail 602 is arranged into a semicircular arc shape to match with the outer diameter of the bearing 2 for blocking the bearing and forming a bearing transfer track, the terminal end of the material rail 602 is provided with a slotted hole 603 with the same size as the bearing, and the bearing 2 falls into the slotted hole 603 through self gravity (or cylinder action) and enters the bearing press-fitting pre-waiting material channel bin 7.
Wherein, the storage granary 3 and the limiting blocking mechanism 4 form a bearing storage device (figure 4), and the motor-driven link mechanism 5 and the bearing transfer material rail 6 form a bearing automatic feeding device (figure 5).
During specific work, firstly, the air cylinder 401 of the limiting stop mechanism 4 acts, the stop plate 402 falls to stop all the bearings 2 in the storage bin 3 above the transferring material rail 6, the bearings in the transferring material rail 6 and the bearings in the storage bin 3 are slightly separated, and the bearings in the transferring material rail 6 are not influenced by the thrust of the bearings in the bin 3 to be subsequently transferred. Then the link mechanism 5 is driven to work, the motor 501 rotates forwards to drive the stud 502 to rotate, the nut connecting rod 503 on the stud 502 is pushed by the screw thread of the stud 502 to continuously advance, the fixed distance of one bearing thickness is moved each time, the bearings on the transfer material rail 6 are driven to enter the slotted holes 603 at the terminal of the material rail 602 one by one, the bearings 2 fall into the slotted holes 603 through self gravity or cylinder action and enter the pre-press-fitting waiting material channel 7, and therefore the bearing press-fitting assembly of each rotor is started; after all the bearings on the transferring material rail 6 are transferred and assembled, the motor 501 of the motor-driven link mechanism 5 rotates reversely, the nut connecting rod 503 returns to the original position quickly, then the limiting stop mechanism 4 works to stop the plate 402 to move upwards, a new row of bearings automatically slide to enter the lower bearing to transfer the material rail 6 due to self gravity, the stop plate 402 moves downwards, the motor-driven link mechanism 5 starts a new round of automatic feeding and feeding action, and the operation is repeated in such a circulating way, so that the automatic feeding and feeding of the small bearings are realized.
Preferably, a certain damping structure (such as a spring structure) can be arranged in the bearing press fitting pre-waiting material channel bin 7 and is generally arranged at the position of the penultimate bearing in the material channel bin, so that the weight of all the bearings above the bin can not be transmitted to the bearing waiting for press fitting at the lowest part, and after the bearing at the lowest part is taken by the rotor for press fitting, the gravity of all the bearings left in the material channel bin 7 is slightly larger than the damping force, so that the original penultimate bearing can smoothly enter the lowest part and can not bear too large pressure of the upper bearing; of course, a cylinder can be arranged above the pre-waiting material channel bin 7 to move up and down to feed the bearings in the bin one by one, and the damping force of the damping structure can be slightly larger, so that the damage to the bearings in the feeding process can be reduced to the maximum extent.
Example 2:
as shown in fig. 6, an automatic feeding device for small bearings according to embodiment 2 of the present invention has a main structure substantially the same as that of embodiment 1, and includes a storage bin a, a limiting stop mechanism B, a driving link mechanism C, a bearing transfer rail D, and a bearing press-fitting pre-waiting storage bin E.
The driving linkage mechanism C consists of a cylinder C1, a driving linkage C2, two guide posts C3 and a mounting plate C4/C5. The cylinder C1 is horizontally fixed on the mounting plate C4, and a push rod of the cylinder is arranged right above the bearing transfer track D; two guide posts C3 are horizontally fixed on the mounting plate C4/C5, are arranged on two sides of the push rod of the air cylinder C1 and are parallel to the push rod. The end part of the cylinder push rod is fixedly connected with a driving connecting rod C2, two ends of the driving connecting rod C2 are respectively provided with a through hole or a guide sleeve, and the sliding guide posts C3 penetrate through the through holes or the guide sleeves to be matched with each other pairwise, so that the balance of the driving connecting rod C2 in three directions X, Y, Z is ensured, and the driving connecting rod C2 can freely slide on the two guide posts C3. The lower end of the driving connecting rod C2 is used for pushing the bearing F in the bearing transfer material rail D to realize feeding one by one.
The bearing press mounting pre-waiting material channel bin E is arranged to be of an inclined bin structure, and the inclination angle is 1-45 degrees; the tail part of the bearing transferring material rail D is provided with a notch for the bearing F to slide out, and the bearings F slide one by one to enter a bearing press mounting pre-waiting material channel bin E.
The specific working points are different from those of the embodiment 1: in the driving link mechanism C of the embodiment, the cylinder C1 works to drive the connecting rod C2 to advance and feed or return to the original point starting position; after the connecting rod C2 advances to drive the bearing F in the transfer material rail D to move to the material rail terminal, the push rod of the cylinder C1 rapidly returns to the original position, and the bearing F at the material rail terminal slides into the bearing press mounting pre-waiting material rail bin E of the inclined bin structure through self gravity (or cylinder pushing) to wait for the press mounting of the rotor; the proper thrust of the connecting rod C2 borne by the bearing F can be ensured by adjusting the air pressure of the air cylinder C1, and the actions of the rest mechanisms are the same as those of the embodiment 1.
The two examples described above are given solely for the purpose of illustrating the invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in addition to those described above without necessarily requiring or implying any exhaustive enumeration of all such embodiments and with obvious changes and modifications within the scope of the invention.
Claims (4)
1. The utility model provides an automatic feeding device of small bearing which characterized in that: the device comprises a frame main body (1), a material storage bin (3), a limiting stop mechanism (4), a driving connecting rod mechanism (5) and a bearing transfer material rail (6); the frame main body (1) is provided with a material storage bin (3), a limiting stop mechanism (4), a driving connecting rod mechanism (5) and a bearing transfer material rail (6) are sequentially arranged above the material storage bin (3) from top to bottom, and the limiting stop mechanism (4), the driving connecting rod mechanism (5) and the bearing transfer material rail (6) are matched for conveying; the limiting stop mechanism (4) comprises an air cylinder (401), a stop plate (402) and a gantry (403) for fixing the air cylinder; the cylinder (401) works to drive the stop baffle (402) to move up and down, and the stop baffle is used for stopping or releasing the bearing (2) in the storage bin (3); a motor (501) is arranged on the driving link mechanism (5), a stud (502) with a fixed lead is connected to the motor (501), a nut connecting rod (503) for driving the bearing (2) to move forwards is arranged on the stud (502), and a supporting bearing (504) and a bearing seat (505) are arranged at the tail end of the stud (502); the bearing transferring material rail (6) is arranged at the lower end of the material storage bin (3), the bearing transferring material rail (6) is provided with a horizontal long groove (601), the end part of the nut connecting rod (503) is matched with the horizontal long groove (601), and the terminal of the bearing transferring material rail (6) is provided with a slotted hole (603) with the size equivalent to that of the bearing (2); a bearing press-mounting pre-waiting material channel (7) is arranged right below the slotted hole (603) of the bearing transferring material rail (6).
2. The automatic feeding device of small bearings according to claim 1, characterized in that: the bottom surface of the material storage bin (3) for placing the bearing (2) is provided with a slope (301), the inclination angle of the slope (301) is alpha, and the angle is 1 degrees < alpha <44 degrees; the bearings (2) roll by self gravity to feed the materials together in a whole row.
3. The automatic feeding device of small bearings according to claim 1, characterized in that: the bearing (2) enters a bearing press-fitting pre-waiting material channel (7) through self gravity (or cylinder action).
4. The automatic feeding device of small bearings according to claim 1, characterized in that: the motor (501) can rotate positively and negatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405693.4A CN112338490A (en) | 2020-12-04 | 2020-12-04 | Automatic feeding device of small bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405693.4A CN112338490A (en) | 2020-12-04 | 2020-12-04 | Automatic feeding device of small bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112338490A true CN112338490A (en) | 2021-02-09 |
Family
ID=74428197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011405693.4A Withdrawn CN112338490A (en) | 2020-12-04 | 2020-12-04 | Automatic feeding device of small bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112338490A (en) |
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| CN113814689A (en) * | 2021-09-13 | 2021-12-21 | 浙江德马科技股份有限公司 | Rotor bearing installation equipment |
| CN114178894A (en) * | 2021-12-16 | 2022-03-15 | 盛瑞传动股份有限公司 | Shaft raw material threading equipment and process for machining thread |
| CN114523281A (en) * | 2022-03-01 | 2022-05-24 | 苏州工业职业技术学院 | Body-building pulling force rope warhead automatic installation equipment |
| CN115464425A (en) * | 2021-06-11 | 2022-12-13 | 麒盛科技股份有限公司 | Automatic cutting machine |
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Cited By (17)
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