CN117798676A - Multi-stage adjustment micro rolling device for shaft parts for lathe - Google Patents
Multi-stage adjustment micro rolling device for shaft parts for lathe Download PDFInfo
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- CN117798676A CN117798676A CN202410223680.7A CN202410223680A CN117798676A CN 117798676 A CN117798676 A CN 117798676A CN 202410223680 A CN202410223680 A CN 202410223680A CN 117798676 A CN117798676 A CN 117798676A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 238000007514 turning Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the field of rolling tools, and provides a multi-stage adjustment micro rolling device for shaft parts for lathes, which comprises a U-shaped base and 2 multi-stage adjustment processing modules, wherein the 2 multi-stage adjustment processing modules are symmetrically arranged at two sides of the upper end of the U-shaped base; the multistage adjustment processing module comprises a first-stage sliding mechanism for controlling the transverse coarse displacement of the processing module, a second-stage sliding mechanism for controlling the transverse fine displacement of the processing module and a lifting mechanism for controlling the longitudinal displacement of the processing module from bottom to top; the inner side of the lifting mechanism is provided with a rolling cutter. The invention has the beneficial effects that: according to the invention, the large-scale adjustment of the centimeter or decimeter level is realized through pin hole matching, the millimeter level adjustment is realized through the lead screw, and finally the micrometer level adjustment is realized through the adjusting bolt. Through the three-level linkage adjustment mode, the technical effects of quickly adjusting the target size in a large-size range and ensuring micron-level fine machining are realized.
Description
Technical Field
The invention relates to the field of rolling tools, in particular to a multistage adjustment micro rolling device for shaft parts for lathes.
Background
Based on sustainable manufacturing concept, the traditional turning technology has the advantage of rapid part forming, but the surface of the part usually generates residual tensile stress, and the defects of burrs, tool marks, uneven surface roughness and the like exist, so that the progress of the turning field is severely restricted. In addition, considering that the requirements of industrial production on the dimensional precision and the surface roughness of the parts are higher and higher, the maximization of the machining quality is difficult to meet by the traditional single turning machining, the service performance of the parts is difficult to improve, and the machining efficiency is low. The rolling mechanism in the prior art has low modularization degree and large occupied space, can not realize the rapid matching of coarse adjustment and fine adjustment, and is difficult to realize rapid centering and micro rolling.
The surface modification technology of rolling processing utilizes rollers to perform peak elimination and valley filling on the surface, ensures plastic flow of metal in the rolling process, and fills the valleys, thereby achieving the purpose of reducing the surface roughness. The prior art shows that: the crystal grains on the surface of the part after the rolling processing are refined, beneficial residual compressive stress is formed, the surface strength and corrosion resistance are obviously improved, and crack initiation can be effectively avoided.
The inventor finds that the technical field of machining mechanical parts provides new requirements on machining precision and efficiency, and a Chinese patent with the application number of 201721330359.0 discloses a technical scheme named as a shaft part surface rolling strengthening device. According to the scheme, oblique block lifting mechanisms are arranged on two sides of a base, and transverse and longitudinal common adjustment is achieved through oblique sliding. The oblique block lifting mechanism is provided with a telescopic mechanism, and the telescopic mechanism is provided with a guide mechanism and a rolling head mechanism. The telescopic mechanism is embedded into the hydraulic cylinder, and the hydraulic cylinder pushes the guide mechanism to move, so that micro rolling of the rolling head mechanism is realized. The technical problems are that: the transverse and longitudinal coarse adjustment centering is synchronously adjusted, so that the shaft parts with different sizes are difficult to quickly match, the transverse occupied space is large, and the safety is difficult to control.
Disclosure of Invention
Aiming at the defects of the prior art, the problems that the current rolling cutter cannot be adapted to parts of different types and occupies large space are solved;
the invention provides a multi-stage adjustment micro rolling device for shaft parts for a lathe, which comprises a U-shaped base and 2 multi-stage adjustment processing modules, wherein the 2 multi-stage adjustment processing modules are symmetrically arranged at two sides of the upper end of the U-shaped base;
the multistage adjustment processing module comprises a first-stage sliding mechanism for controlling the transverse coarse displacement of the processing module, a second-stage sliding mechanism for controlling the transverse fine displacement of the processing module and a lifting mechanism for controlling the longitudinal displacement of the processing module from bottom to top; the inner side of the lifting mechanism is provided with a rolling cutter.
Further, the U-shaped base top sets up first spout, and first spout side sets up a plurality of locating holes, one-level slide mechanism slidable ground sets up in first spout, and one-level slide mechanism bottom sets up the through-hole, and through-hole and locating hole inside set up the fixed one-level slide mechanism of locating pin in different positions.
Further, a fine adjustment device for driving the secondary sliding mechanism is arranged between the primary sliding mechanism and the secondary sliding mechanism.
Further, a second chute is arranged at the upper end of the primary sliding mechanism, and the secondary sliding mechanism is slidably arranged in the second chute; the fine adjustment device comprises a screw rod and a connecting sliding block sliding along with the screw rod in a threaded manner; the guide groove is formed in the bottom of the second sliding groove, the screw rod is rotatably arranged in the guide groove, and the lower end of the connecting sliding block is connected with the upper end of the screw rod and connected with the secondary sliding mechanism.
Further, one or more racks are fixedly arranged at the lower end of the lifting mechanism, a gear for driving the racks to move up and down is arranged in the secondary sliding mechanism, a rotating rod for driving the gear to rotate is arranged, a limiting hole is further formed in the position, corresponding to the rotating rod, of the box body of the secondary sliding mechanism, a limiting pin is arranged on the rotating rod, and the rotating rod is limited to rotate after the lifting mechanism is adjusted in place.
Further, the inside pressure trimming subassembly that is provided with the rolling cutter of elevating system, pressure trimming subassembly is including installing cutter bearing's U-shaped sliding support and adjusting bolt, U-shaped sliding support with adjusting bolt sets up strong permanent magnet and connects, screw has been seted up in the elevating system outside, adjusting bolt and screw adaptation.
As a preferable scheme, the side surface of the secondary sliding mechanism is provided with a male groove and a female groove which are in sliding connection with the second sliding groove.
As a preferable scheme, the lower section of the lifting mechanism is provided with a plurality of lifting guide rods, the upper end of the secondary sliding mechanism is provided with a plurality of deep holes, and the lifting guide rods are matched with the deep holes.
The invention has the beneficial effects that:
1. after the invention is installed on a lathe, two processing technologies can be completed simultaneously, clamping deviation caused by repeated clamping can be effectively avoided, the surface quality can be enhanced, the surface roughness can be reduced, and the synchronous processing of the lathe and the roller can be realized. In addition, the device has high module degree, and is beneficial to improving centering efficiency through the combination of coarse adjustment and fine adjustment without interference.
2. According to the invention, the large-scale adjustment of the centimeter or decimeter level is realized through pin hole matching, the millimeter level adjustment is realized through the lead screw, and finally the micrometer level adjustment is realized through the adjusting bolt. Through the three-level linkage adjustment mode, the technical effects of quickly adjusting the target size in a large-size range and ensuring micron-level fine machining are realized.
3. According to the invention, the extension amount of the roller mechanism can be adjusted by controlling the adjusting bolt, so that precise micro rolling is realized, different defects generated in turning are improved, controllable rolling on a processing surface is realized, and the finish degree and strength of the processing surface are greatly optimized. And the adjusting bolt is connected with the tail end of the connecting piece through a strong permanent magnet, so that the effect of quick retraction after processing is achieved, the problem that the roller accuracy is damaged by external force is avoided, and finally the extension and retraction integrated process is completed.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:
fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the internal structure of the lifting mechanism of the present invention.
Fig. 3 is a schematic view of the internal structure of the sliding mechanism of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
The reference numerals in the drawings are:
1. a U-shaped base; 2. a first-stage sliding mechanism; 3. a secondary sliding mechanism; 5. lifting the guide rod; 6. a lifting mechanism; 7. rolling a cutter; 9. an adjusting bolt; 10. a rack; 11. a rotating lever; 12. a screw rod; 13. positioning holes; 15. a limiting pin; 16. a limiting hole; 17. a positioning pin; 18. a male and female groove; 19. a guide groove; 25. the connecting slide block; 27. a U-shaped sliding bracket; 33. a gear.
Detailed Description
The invention will be further described with reference to the drawings and examples for the purpose of illustrating the features of the invention.
Example 1:
referring to fig. 1 to 3, the embodiment provides a multi-stage adjustment micro rolling device for shaft parts for lathes, which solves the problems that the current rolling tool cannot be adapted to parts of different types and occupies a larger space; the invention provides a multi-stage adjustment micro rolling device for shaft parts for a lathe, which comprises a U-shaped base 1 and 2 multi-stage adjustment processing modules, wherein the 2 multi-stage adjustment processing modules are symmetrically arranged at two sides of the upper end of the U-shaped base 1; the double-roller structure can meet the processing requirements of shaft parts with different sizes, can realize quick centering and micro rolling through the coarse adjustment and fine adjustment which are mutually noninterfere, has the advantages of strong universality, high efficiency and improvement of surface finish and surface reinforcement, and has important significance for prolonging the fatigue life of the shaft parts.
The multistage adjustment processing module comprises a first-stage sliding mechanism 2 for controlling the transverse coarse displacement of the processing module, a second-stage sliding mechanism 3 for controlling the transverse fine displacement of the processing module and a lifting mechanism 6 for controlling the longitudinal displacement of the processing module from bottom to top; a rolling cutter 7 is arranged on the inner side of the lifting mechanism 6.
According to the embodiment, the first-stage sliding mechanism 2 is slidably arranged on the U-shaped base 1, a first chute for placing the first-stage sliding mechanism 2 is arranged at the top end of the U-shaped base 1, a plurality of positioning holes 13 are formed in the side face of the first chute, the first-stage sliding mechanism 2 is slidably arranged in the first chute, a through hole is formed in the bottom of the first-stage sliding mechanism 2, a positioning pin 17 is arranged in the through hole and the positioning hole 13, the positioning pin 17 can penetrate through the hole to fix the first-stage sliding mechanism 2 at different positions, in the actual production process, the difference between the currently machined shaft size and the next shaft size to be machined is large, for example, if the currently machined shaft with the outer diameter of 10mm is, the outer diameter of the next shaft to be machined is 90mm, the size span to be adjusted at the moment is 80mm, the traditional machining cutter is small in order to ensure machining precision, therefore the time consumption of adjustment is long, and the production efficiency is low.
In the embodiment, the hole distance of the positioning hole 13 is 10mm, the first-stage sliding mechanism 2 can be quickly slid to the target position by pulling out the positioning pin 17, and then the first-stage sliding mechanism is fixed by the positioning pin 17, so that quick large-size range stroke adjustment is realized.
In order to achieve fine adjustment after coarse adjustment, a fine adjustment device for driving the secondary slide mechanism 3 is provided between the primary slide mechanism 2 and the secondary slide mechanism 3. Specifically, a second chute is arranged at the upper end of the primary sliding mechanism 2, and the secondary sliding mechanism 3 is slidably arranged in the second chute; the fine adjustment device comprises a screw rod 12 and a connecting sliding block 25 which slides along with the screw rod in a threaded manner; the bottom of the second chute is provided with a guide groove 19, the screw rod 12 is rotatably arranged in the guide groove 19, and the lower end of the connecting sliding block 25 is connected with the upper end of the screw rod 12 and is connected with the secondary sliding mechanism 3. The maximum travel of the feed of the screw rod 12 is required to be larger than or equal to the hole distance of the positioning hole 13, and in the embodiment, the maximum travel of the feed of the screw rod 12 is set to be 10mm, and the screw rod 12 is rotated to drive the secondary sliding mechanism 3, so that the millimeter-level size adjustment is realized. In order to ensure a smooth running in the longitudinal direction during the running of the secondary slide 3, a male and female groove 18 is provided on the side of the secondary slide 3, which is in sliding connection with the second slide groove.
Finally, the machining height of the rolling cutter 7 needs to be adjusted, one or more racks 10 are fixedly arranged at the lower end of the lifting mechanism 6, a gear 33 for driving the racks to move up and down is arranged in the secondary sliding mechanism 3, a rotating rod 11 for driving the gears to rotate is arranged in the secondary sliding mechanism 3, a limit hole 16 is formed in the position, corresponding to the rotating rod, of the box body of the secondary sliding mechanism 3, the rotating rod 11 is limited to rotate after the lifting mechanism 6 is adjusted in place, the rotation of the gear 33 is realized through the rotating rod 11, so that the racks 10 slide along the rack guide grooves, the top ends of the racks 10 drive the lifting mechanism 6 to move, and after the preset height is reached, the crank of the rotating rod 11 is inserted into the limit hole 16 to lock the rotating rod 11, so that the movement of the racks 10 is limited, and the longitudinal adjustment step of the lifting mechanism 6 is completed. Four lifting guide rods 5 are arranged at the bottom end of the lifting mechanism 6, so that lifting stability is ensured.
In order to enable the device to have micron-sized adjustment capability, a pressure fine adjustment assembly of a rolling cutter is arranged in the lifting mechanism 6, the pressure fine adjustment assembly comprises a U-shaped sliding support 27 provided with a cutter bearing and an adjusting bolt 9, the U-shaped sliding support 27 is connected with the adjusting bolt 9 through a strong permanent magnet, a screw hole is formed in the outer side of the lifting mechanism 6, the adjusting bolt 9 is adapted to the screw hole, and the adjusting bolt 9 is rotated to adjust the extension amount of the idler wheel 7 along a designated track, so that the requirement of precise adjustment is met; the strong permanent magnet 28 comprises the strong permanent magnet 28 at the tail end of the adjusting bolt 9 and the tail end of the U-shaped sliding support 27, so that the rolling mechanism can be quickly retracted.
In the embodiment, the pin holes of the primary sliding mechanism are matched to realize large-scale adjustment of centimeter or decimeter level, the fine adjustment device is used for driving the secondary sliding mechanism to realize millimeter level adjustment, and finally the pressure fine adjustment assembly of the rolling cutter is used for realizing micron level adjustment. Through the three-level linkage adjustment mode, the technical effects of quickly adjusting the target size in a large-size range and ensuring micron-level fine machining are realized.
Example 2:
referring to fig. 4, this embodiment is an improvement on the use of embodiment 1 in that the problem of interference with the work piece is found, the arc of the inner surface of the U-shaped base 1 is increased, and a chamfer is provided at the inner upper edge of the primary slide mechanism 2, otherwise the same as embodiment 1.
The above examples and drawings are only for illustrating the technical aspects of the present invention, but not for limiting the same, and it should be understood by those skilled in the art that the present invention is described in detail with reference to the preferred embodiments, and that the changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present invention and the scope of the claims of the present invention. Other related art structures not disclosed in detail in the present invention are prior art in the field.
Claims (8)
1. The multi-stage adjustment micro rolling device for the shaft part for the lathe comprises a U-shaped base (1) and 2 multi-stage adjustment processing modules, wherein the 2 multi-stage adjustment processing modules are symmetrically arranged at two sides of the upper end of the U-shaped base (1);
the method is characterized in that:
the multistage adjustment processing module comprises a first-stage sliding mechanism (2) for controlling the transverse coarse displacement of the processing module, a second-stage sliding mechanism (3) for controlling the transverse fine displacement of the processing module and a lifting mechanism (6) for controlling the longitudinal displacement of the processing module from bottom to top; the inner side of the lifting mechanism (6) is provided with a rolling cutter (7).
2. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: the U-shaped base (1) top sets up first spout, and first spout side sets up a plurality of locating holes (13), one-level slide mechanism (2) slidable ground sets up in first spout, and one-level slide mechanism (2) bottom sets up the through-hole, and through-hole and locating hole (13) inside set up locating pin (17) fixed one-level slide mechanism (2) in different positions.
3. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: and a fine adjustment device for driving the secondary sliding mechanism (3) is arranged between the primary sliding mechanism (2) and the secondary sliding mechanism (3).
4. The multi-stage adjusting and micro-rolling device for shaft parts for lathes according to claim 3, wherein: the upper end of the primary sliding mechanism (2) is provided with a second chute, and the secondary sliding mechanism (3) is slidably arranged in the second chute; the fine adjustment device comprises a screw rod (12) and a connecting sliding block (25) sliding along with the screw rod in a threaded manner; the bottom of the second sliding groove is provided with a guide groove (19), the screw rod (12) is rotatably arranged in the guide groove (19), and the lower end of the connecting sliding block (25) is connected with the upper end of the screw rod (12) and is connected with the secondary sliding mechanism (3).
5. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: one or more racks (10) are fixedly arranged at the lower end of the lifting mechanism (6), a gear (33) for driving the racks to move up and down is arranged in the secondary sliding mechanism (3), a rotating rod (11) for driving the gear to rotate is arranged, a limit hole (16) is further formed in the position, corresponding to the rotating rod, of the box body of the secondary sliding mechanism (3), a limit pin (15) is arranged on the rotating rod (11), and the rotating rod (11) is limited to rotate after the lifting mechanism (6) is adjusted to be in place.
6. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: the pressure fine adjustment assembly of the rolling cutter is arranged inside the lifting mechanism (6), the pressure fine adjustment assembly comprises a U-shaped sliding support (27) provided with a cutter bearing and an adjusting bolt (9), the U-shaped sliding support (27) is connected with the adjusting bolt (9) through a strong permanent magnet, a screw hole is formed in the outer side of the lifting mechanism (6), and the adjusting bolt (9) is matched with the screw hole.
7. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: the side surface of the secondary sliding mechanism (3) is provided with a male groove (18) and a female groove which are in sliding connection with the second sliding groove.
8. The multistage adjustment micro rolling device for shaft parts for lathes according to claim 1, wherein: the lower section of the lifting mechanism (6) is provided with a plurality of lifting guide rods (5), the upper end of the secondary sliding mechanism (3) is provided with a plurality of deep holes, and the lifting guide rods (5) are matched with the deep holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410223680.7A CN117798676A (en) | 2024-02-29 | 2024-02-29 | Multi-stage adjustment micro rolling device for shaft parts for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410223680.7A CN117798676A (en) | 2024-02-29 | 2024-02-29 | Multi-stage adjustment micro rolling device for shaft parts for lathe |
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| CN117798676A true CN117798676A (en) | 2024-04-02 |
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| CN202410223680.7A Pending CN117798676A (en) | 2024-02-29 | 2024-02-29 | Multi-stage adjustment micro rolling device for shaft parts for lathe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214598A (en) * | 2008-01-07 | 2008-07-09 | 李龙江 | Excircle surface rolling device |
| CN105499907A (en) * | 2016-01-21 | 2016-04-20 | 吉林大学 | Device for improving machining precision of inner holes of shaft parts |
| CN206086054U (en) * | 2016-10-24 | 2017-04-12 | 重庆医药高等专科学校 | Financial affairs data clamping machine construct with adjustable |
| CN107097040A (en) * | 2017-06-23 | 2017-08-29 | 安徽工业大学 | A kind of Axle Surface rolling device |
| CN206689676U (en) * | 2017-04-11 | 2017-12-01 | 济南大学 | A kind of lathe workpiece surface rolling device |
| CN207223298U (en) * | 2017-10-16 | 2018-04-13 | 济南大学 | A kind of Axle Surface finish rolling hardening device |
| KR101925005B1 (en) * | 2018-11-06 | 2018-12-04 | 주식회사 디앤아이 | Milling Machine Jig for Precision Parts |
| CN215315230U (en) * | 2021-06-22 | 2021-12-28 | 江苏创恒机械科技有限公司 | Rear material blocking multi-stage material blocking device of bending machine |
| CN114310503A (en) * | 2021-12-29 | 2022-04-12 | 姜堰经济开发区科创中心 | Tool rest of diamond tool sharpening machine tool |
| CN219852418U (en) * | 2023-05-19 | 2023-10-20 | 广西天恒汽车部件制造股份有限公司 | Aluminum profile double-head sawing equipment capable of realizing stepless fine adjustment of length and size precision |
-
2024
- 2024-02-29 CN CN202410223680.7A patent/CN117798676A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214598A (en) * | 2008-01-07 | 2008-07-09 | 李龙江 | Excircle surface rolling device |
| CN105499907A (en) * | 2016-01-21 | 2016-04-20 | 吉林大学 | Device for improving machining precision of inner holes of shaft parts |
| CN206086054U (en) * | 2016-10-24 | 2017-04-12 | 重庆医药高等专科学校 | Financial affairs data clamping machine construct with adjustable |
| CN206689676U (en) * | 2017-04-11 | 2017-12-01 | 济南大学 | A kind of lathe workpiece surface rolling device |
| CN107097040A (en) * | 2017-06-23 | 2017-08-29 | 安徽工业大学 | A kind of Axle Surface rolling device |
| CN207223298U (en) * | 2017-10-16 | 2018-04-13 | 济南大学 | A kind of Axle Surface finish rolling hardening device |
| KR101925005B1 (en) * | 2018-11-06 | 2018-12-04 | 주식회사 디앤아이 | Milling Machine Jig for Precision Parts |
| CN215315230U (en) * | 2021-06-22 | 2021-12-28 | 江苏创恒机械科技有限公司 | Rear material blocking multi-stage material blocking device of bending machine |
| CN114310503A (en) * | 2021-12-29 | 2022-04-12 | 姜堰经济开发区科创中心 | Tool rest of diamond tool sharpening machine tool |
| CN219852418U (en) * | 2023-05-19 | 2023-10-20 | 广西天恒汽车部件制造股份有限公司 | Aluminum profile double-head sawing equipment capable of realizing stepless fine adjustment of length and size precision |
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