CN113954009B - Assembly fixture and assembly method for circulating planetary roller screw pair - Google Patents
Assembly fixture and assembly method for circulating planetary roller screw pair Download PDFInfo
- Publication number
- CN113954009B CN113954009B CN202111410200.0A CN202111410200A CN113954009B CN 113954009 B CN113954009 B CN 113954009B CN 202111410200 A CN202111410200 A CN 202111410200A CN 113954009 B CN113954009 B CN 113954009B
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- nut
- roller
- clamping
- retainer
- screw pair
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Abstract
The invention provides a circulating type planetary roller screw pair assembly fixture which comprises a support frame, roller clamping devices and a nut clamping device, wherein the support frame consists of a base and a cover plate, the nut clamping device is arranged on the cover plate, the roller clamping devices are arranged in the support frame, the nut clamping devices comprise a linear motor, a fixing frame, a nut clamping arm and a moving rod, the moving rod is connected with the nut clamping arm through a connecting rod, the moving rod is pushed by the linear motor, two ends of the moving rod are used for driving the nut clamping arm to clamp a nut of a circulating type planetary roller screw pair to be assembled through the connecting rod, the roller clamping devices comprise a support disc, a pressure rod retainer and a spring, the support disc is fixedly arranged on the base, the pressure rod retainer is fixedly connected with the periphery of the upper end face of the support disc, the center position of the upper end face of the support disc is provided with a nut matched with the bolt through a spring connecting bolt. The invention has scientific and reasonable structural design, simple operation and good clamping effect.
Description
Technical Field
The invention belongs to the technical field of mechanical part assembly, and particularly relates to a circulating planetary roller screw pair assembly fixture and an assembly method thereof.
Background
The planetary roller screw pair is a high-precision transmission mechanism capable of mutually converting linear motion and rotary motion, and is widely applied to the fields of aerospace, weaponry, medical equipment, precision machine tools and the like due to the characteristics of small friction, high efficiency, long service life, strong shock resistance and the like. The PRSM has various forms, wherein the circulating planetary roller screw pair is a transmission mechanism applicable to the linear electromechanical actuator, and has the following advantages: high precision, small lead, high reliability and good repeatability. The assembly problem is the first step which hinders the wide application of the circulating planetary roller screw pair.
The assembly method disclosed in patent CN111306271a is: and the nut with the retainer at one end is directly placed into the roller and is abutted against the nut, then the supporting clamp is used for fixing the position of the roller, and the retainer at the other end is installed, so that the relative position of the roller retainer of the nut is fixed, the clamp is contracted and taken out, and finally the screw is screwed in to complete the assembly of the planetary roller screw pair. The assembly method disclosed in patent CN110103018A is that the roller is clamped first, the clamp is opened in the insert nut, the retainer and circlip at one end are installed, the clamp is contracted and separated from the roller, the clamp is taken out, the retainer and circlip at the other end are installed, and finally the screw is screwed in to complete the assembly. However, the above assembly method is not suitable for the circulating planetary roller screw pair, because of the particularity of the retainer of the circulating planetary roller screw pair (unlike the other common 4 planetary roller screw pairs), the rollers are limited by the straight grooves of the retainer in an axial parallel manner, and the axial positions of each roller and the retainer are different, namely, the rollers are uniformly distributed along the spiral line of the nut. It is thus necessary to design an assembly device and an assembly method for the circulating planetary roller screw pair.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides the assembly fixture and the assembly method of the circulating planetary roller screw pair.
In order to solve the technical problems, the invention adopts the following technical scheme: the assembly fixture for the circulating planetary roller screw pair is characterized by comprising a support frame, a roller clamping device and a nut clamping device, wherein the support frame comprises a base and a cover plate which are arranged in parallel, the cover plate is fixedly connected with the base through a plurality of connecting posts, the nut clamping device is arranged on the top surface of the cover plate, and the roller clamping device is arranged on the top surface of the base;
the nut clamping device comprises a linear motor, a fixed frame, a movable rod and a nut clamping arm, wherein the linear motor is fixedly arranged on the fixed frame, a telescopic push rod of the linear motor penetrates through the fixed frame and is fixedly connected with the movable rod, two sliding seats are symmetrically arranged on the movable rod, the upper end surface and the lower end surface of each sliding seat are respectively connected with the fixed frame and the nut clamping arm through a first connecting rod and a second connecting rod, and the two nut clamping arms are driven by the linear motor to do mirror-image lever movement;
the roller clamping device comprises a supporting disc and a clamping retainer, wherein the supporting disc is connected to the top surface of the base through a plurality of supporting columns, the clamping retainer is composed of a plurality of pressing rod annular arrays, the lower portion of the clamping retainer is in a round table shape, the upper portion of the clamping retainer is in a cylindrical shape, the bottom end of the clamping retainer is hinged to the supporting disc, a rubber ring is arranged on the top end of the clamping retainer, a spring hole is formed in the central position of the supporting disc, a compression bolt is arranged in the spring hole in a penetrating mode, a compression nut in threaded fit with the compression bolt is fixedly arranged at the bottom end of the spring hole, a spring is sleeved on a screw rod of the compression bolt, and a diffusion circular ring is arranged on the spring.
Preferably, the fixing frame is a semi-closed rectangular frame, an opening is formed in the middle of one side of the fixing frame, two limiting heads are symmetrically arranged at the opening on the fixing frame, the moving rod is arranged on the inner side of the fixing frame and is opposite to the opening of the fixing frame, the nut clamping arms are L-shaped, two nut clamping arms are arranged at two sides of the opening of the fixing frame in a mirror image mode, one end of the first connecting rod is hinged to the upper end face of the sliding seat, the other end of the first connecting rod is hinged to the fixing frame, one end of the second connecting rod is hinged to the lower end face of the sliding seat, and the other end of the second connecting rod is hinged to the lower end position of the corner of the nut clamping arms.
Preferably, a limiting groove for clamping the nut clamping arm is formed in the limiting head, and a V-shaped rubber pad is arranged at a clamping position on the nut clamping arm.
Preferably, the pressure rods are in a three-section folded line shape, the number of the pressure rods is 10-15, and the number of the pressure rods is equal to the number of rollers of the circulating planetary roller screw pair to be assembled.
Preferably, the cover plate is provided with an operation hole passing through the clamping retainer.
Preferably, both ends of the support column are respectively in threaded connection with the base and the support disc, an adjusting nut is in threaded connection with the support column, and the adjusting nut is attached to the top surface of the base.
Preferably, a plurality of cushion blocks are fixedly arranged on the cover plate, a plurality of connecting lugs are arranged on the fixing frame, and the connecting lugs are connected with the cushion blocks through connecting bolts.
The assembly method of the circulating type planetary roller screw pair by using the assembly fixture of the circulating type planetary roller screw pair is characterized by comprising the following steps of:
s1, confirming the screwing direction of a screw rod and a nut, selecting a lower cam ring and properly placing the lower cam ring;
s2, assembling the nut and the lower cam ring, fixing the nut and the lower cam ring by using a fixing pin, putting the nut and the lower cam ring into an operation hole, opening a linear motor, moving a push rod moving rod of the linear motor towards a screw pair to be assembled, and moving a sliding seat towards each other to close the sliding seat so that a nut clamping arm clamps the nut;
s3, adjusting the position of the roller retainer, aligning the center line position of one straight groove of the roller retainer with the center line position of the boss of the lower cam ring, adjusting the compression nut, and releasing the elasticity of the spring to enable the roller retainer to prop up the rubber ring to the maximum;
s4, the first roller is arranged in a straight groove of the roller retainer, one end of the first roller is clung to a boss of the lower cam ring and meshed with the nut, and the roller retainer is ensured to be motionless at the moment;
s5, mounting a second roller, and mounting the second roller into a straight groove of a roller retainer to be meshed with the nut, wherein the displacement direction of the first roller and the second roller is the direction close to the lower cam ring;
s6, sequentially installing all the rollers in the straight grooves of the roller retainer, and ensuring that each roller is meshed with the nut;
s7, installing an upper cam ring, and fixedly connecting the upper cam ring with a nut by using a fixing pin;
s8, screwing the screw rod from the upper end, loosening the nut clamping device and the roller clamping device when the screwing distance is half of that of the nut, and then continuing to screw the screw rod to finish assembly.
Preferably, after the operation S6 is performed, the axial positions of the rollers and the roller holder should be checked as long as the upper cam ring is ensured to be assembled normally, if not.
Compared with the prior art, the invention has the following advantages:
1. the clamp device disclosed by the invention has the advantages of scientific and reasonable structural design, stable and reliable clamping, simplicity in operation and low manufacturing cost, and provides a solid foundation for assembling the circulating planetary roller screw pair.
2. The assembly method designed by the invention has clear thought, is convenient to operate and accurate to assemble, and promotes the practical process of the circulating planetary roller screw pair.
The invention is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a nut clamping device according to the present invention.
Fig. 3 is a schematic view of the roller clamping device according to the present invention.
Fig. 4 is an assembled schematic view of the roller No. one of the present invention.
Fig. 5 is a schematic cross-sectional view of a circulating planetary roller screw according to the present invention.
FIG. 6 is a schematic diagram of the assembly of the cam ring and rollers in the right-handed embodiment of the present invention.
FIG. 7 is a schematic diagram of the assembly of the cam ring and rollers in the left hand sense of the present invention.
Fig. 8 is a schematic top view of a multiple roller assembly of the present invention.
Reference numerals illustrate:
Detailed Description
Example 1
As shown in fig. 1 to 3, the invention comprises a supporting frame, a roller clamping device and a nut clamping device, wherein the supporting frame comprises a base 1 and a cover plate 2 which are arranged in parallel, the cover plate 2 is fixedly connected with the base 1 through four connecting posts 3, the nut clamping device is arranged on the top surface of the cover plate 2, and the roller clamping device is arranged on the top surface of the base 1;
the nut clamping device comprises a linear motor 4, a fixed frame 5, a movable rod 6 and a nut clamping arm 7, wherein the linear motor 4 is fixedly arranged on the fixed frame 5, a telescopic push rod of the linear motor 4 penetrates through the fixed frame 5 and is fixedly connected with the movable rod 6, two sliding seats 8 are symmetrically arranged on the movable rod 6, the upper end surface and the lower end surface of each sliding seat 8 are respectively connected with the fixed frame 5 and the nut clamping arm 7 through a first connecting rod 9 and a second connecting rod 10, and the two nut clamping arms 7 are driven by the linear motor 4 to do mirror-image lever movement;
the roller clamping device comprises a supporting disc 11 and a clamping retainer, the supporting disc 11 is connected to the top surface of the base 1 through three supporting columns 12, the clamping retainer is formed by a plurality of pressing rods 13 in an annular array, the lower portion of the clamping retainer is in a round table shape, the upper portion of the clamping retainer is in a cylinder shape, the bottom end of the clamping retainer is hinged to the supporting disc 11, a rubber ring 14 is arranged at the top end of the clamping retainer, a spring hole is formed in the central position of the supporting disc 11, a compression bolt 15 is penetrated in the spring hole, a compression nut in threaded fit with the compression bolt 15 is fixedly arranged at the bottom end of the spring hole, a spring 16 is sleeved on a screw rod of the compression bolt 15, a diffusion ring 24 is connected to the top side surface of the spring 16, and when the spring 16 releases elasticity, the diffusion ring 24 props against the pressing rods 13 to enable the pressing rods 13 to keep an outward expansion state and is limited by the rubber ring 14.
In this embodiment, the fixing frame 5 is a semi-closed rectangular frame, an opening is formed in a middle position of one side of the fixing frame 5, two limiting heads 17 are symmetrically and integrally formed at the opening on the fixing frame 5, the fixing frame 5 finally presents a concave structure with an opening in a concave mode, the moving rod 6 is arranged on the inner side of the fixing frame 5 and is opposite to the opening of the fixing frame 5, the nut clamping arms 7 are in an L shape, two nut clamping arms 7 are arranged at two side positions in the opening of the fixing frame 5 in a mirror image mode, one end of the first connecting rod 9 is hinged to the upper end face of the sliding seat 8, the other end of the first connecting rod 9 is hinged to the fixing frame 5, one end of the second connecting rod 10 is hinged to the lower end face of the sliding seat 8, the other end of the second connecting rod 10 is hinged to the lower end position of the corner of the nut clamping arms 7, and when the moving rod 6 moves towards a direction close to a to-be-assembled screw clamping pair under the pushing of the linear motor 4, the two nut clamping arms 7 are close to clamp nuts.
In this embodiment, the limiting head 17 is provided with a limiting groove for clamping the nut clamping arm 7, and a V-shaped rubber pad 18 is disposed at a clamping position on the nut clamping arm 7.
In this embodiment, the compression bar 13 is a three-section fold line, two fold line angles of the compression bar 13 are right angles and obtuse angles, the number of the compression bars 13 is 10-15, and the number of the compression bars 13 is equal to the number of rollers of the circulating planetary roller screw pair to be assembled.
In this embodiment, the cover plate 2 is provided with an operation hole 19 passing through the clamping holder.
In this embodiment, two ends of the support column 12 are respectively in threaded connection with the base 1 and the support disc 11, an adjusting nut 20 is in threaded connection with the support column 12, and the adjusting nut 20 is attached to the top surface of the base 1.
In this embodiment, a plurality of cushion blocks 23 are fixedly disposed on the cover plate 2, a plurality of connecting lugs 21 are disposed on the fixing frame 5, and the connecting lugs 21 are connected with the cushion blocks 23 through connecting bolts 22.
Example 2
The assembly method of the circulating type planetary roller screw pair by using the assembly fixture of the circulating type planetary roller screw pair is characterized by comprising the following steps of:
s1, as shown in fig. 6 and 7, confirming the rotation direction of a screw rod 29 and a nut 30, selecting a lower cam ring 27 and placing the lower cam ring in a proper position;
s2, assembling the nut 30 and the lower cam ring 27 and fixing the nut with a fixing pin, putting the nut into an operation hole 19, opening the linear motor 4, moving a push rod moving rod 6 of the linear motor 4 towards a lead screw pair to be assembled, and moving a sliding seat 8 towards each other to close the nut, so that a nut clamping arm 7 clamps the nut 30;
s3, adjusting the position of the roller retainer 25, aligning the center line position of one straight groove of the roller retainer 25 with the center line position of the boss of the lower cam ring 27, adjusting the compression nut 30, and releasing the elastic force of the spring 16 to enable the roller retainer 25 to prop up the rubber ring 14 to the maximum;
s4, the first roller 28 is arranged in a straight groove of the roller retainer 25, one end of the first roller 28 is tightly attached to a boss of the lower cam ring 27 and is meshed with the nut 30, and at the moment, the roller retainer 25 is ensured to be motionless;
s5, mounting a roller II 31, mounting the roller II 31 into a straight groove of the roller retainer 25 to be meshed with the nut 30, wherein the displacement direction of the roller II 28 and the roller II 31 is a direction approaching to the lower cam ring 27;
s6, as shown in FIG. 8, all twelve rollers are sequentially installed in the straight groove of the roller retainer 25, so that each roller is meshed with the nut 30;
s7, installing an upper cam ring 26, and fixedly connecting the upper cam ring 26 with a nut 30 by using a fixing pin;
s8, screwing the screw rod 29 from the upper end, loosening the nut clamping device and the roller clamping device when the screwing distance is half of that of the nut 30, and then continuing to screw the screw rod to finish assembly.
In the present embodiment, as shown in fig. 4 and 5, after the operation S6, the upper cam ring is ensured to be assembled normally, if not, the axial positions of the rollers and the roller holder 25 are checked, the axial positions being as shown in fig. 5，(i=0, 1, … (z-1)), m is the thickness of the cam ring.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention. Any simple modification, variation and equivalent variation of the above embodiments according to the technical substance of the invention still fall within the scope of the technical solution of the invention.
Claims (6)
1. The assembly fixture for the circulating planetary roller screw pair is characterized by comprising a support frame, a roller clamping device and a nut clamping device, wherein the support frame comprises a base (1) and a cover plate (2) which are arranged in parallel, the cover plate (2) is fixedly connected with the base (1) through a plurality of connecting posts (3), the nut clamping device is arranged on the top surface of the cover plate (2), and the roller clamping device is arranged on the top surface of the base (1);
the nut clamping device comprises a linear motor (4), a fixing frame (5), a moving rod (6) and a nut clamping arm (7), wherein the linear motor (4) is fixedly arranged on the fixing frame (5), a telescopic push rod of the linear motor (4) penetrates through the fixing frame (5) to be fixedly connected with the moving rod (6), two sliding seats (8) are symmetrically arranged on the moving rod (6), the upper end face and the lower end face of each sliding seat (8) are respectively connected with the fixing frame (5) and the nut clamping arm (7) through a first connecting rod (9) and a second connecting rod (10), and the two nut clamping arms (7) are driven by the linear motor (4) to do mirror-image lever movement;
the roller clamping device comprises a supporting disc (11) and a clamping retainer, wherein the supporting disc (11) is connected to the top surface of the base (1) through a plurality of supporting columns (12), the clamping retainer is formed by a plurality of pressing rods (13) in a ring array, the lower part of the clamping retainer is in a round table shape, the upper part of the clamping retainer is in a cylinder shape, the bottom end of the clamping retainer is hinged to the supporting disc (11), the top end of the clamping retainer is provided with a rubber ring (14), a spring hole is formed in the central position of the supporting disc (11), a compression bolt (15) is penetrated in the spring hole, a compression nut in threaded fit with the compression bolt (15) is fixedly arranged at the bottom end of the spring hole, a spring (16) is sleeved on a screw rod of the compression bolt (15), and a diffusion ring (24) is arranged on the spring (16);
an operation hole (19) penetrating through the clamping retainer is formed in the cover plate (2);
the circulating type planetary roller screw pair comprises a screw (29), a nut (30), a lower cam ring (27), a roller retainer (25) and an upper cam ring (26), and the circulating type planetary roller screw pair assembling clamp is used for assembling the circulating type planetary roller screw pair, and the method comprises the following steps:
s1, confirming the screwing direction of a screw rod (29) and a nut (30), selecting a lower cam ring (27) and properly placing;
s2, assembling the nut (30) and the lower cam ring (27) and fixing the nut and the lower cam ring by using a fixing pin, putting the nut and the lower cam ring into an operation hole (19), opening a linear motor (4), pushing a moving rod (6) to move towards a screw pair to be assembled by the linear motor (4), and enabling a sliding seat (8) to move towards each other to enable a nut clamping arm (7) to clamp the nut (30);
s3, adjusting the position of the roller retainer (25), aligning the center line position of one straight groove of the roller retainer (25) with the center line position of a boss of the lower cam ring (27), adjusting the compression nut (30), and releasing the elasticity of the spring (16) to enable the clamping retainer to prop up the rubber ring (14) to the maximum;
s4, mounting the first roller (28) into a straight groove of the roller retainer (25), enabling one end of the first roller (28) to be tightly attached to a boss of the lower cam ring (27) and meshed with the nut (30), and ensuring that the roller retainer (25) is not moved at the moment;
s5, mounting a second roller (31), and mounting the second roller (31) into a straight groove of a roller retainer (25) to be meshed with a nut (30), wherein the displacement direction of the first roller (28) and the second roller (31) is the direction close to a lower cam ring (27);
s6, all the rollers are sequentially arranged in the straight grooves of the roller retainer (25) to ensure that each roller is meshed with the nut (30);
s7, installing an upper cam ring (26), and fixedly connecting the upper cam ring (26) with a nut (30) by using a fixing pin;
s8, screwing the screw rod (29) from the upper end, loosening the nut clamping device and the roller clamping device when the screwing distance is half of that of the nut (30), and then continuously screwing the screw rod to finish assembly.
2. The assembly fixture for the circulating planetary roller screw pair according to claim 1, wherein the fixing frame (5) is a semi-closed rectangular frame, an opening is formed in the middle of one side of the fixing frame (5), two positioning heads (17) are symmetrically arranged at the opening on the fixing frame (5), the moving rod (6) is arranged on the inner side of the fixing frame (5) and right faces the opening of the fixing frame (5), the nut clamping arms (7) are L-shaped, two nut clamping arms (7) are arranged at two side positions in the opening of the fixing frame (5) in a mirrored mode, one end of the first connecting rod (9) is hinged to the upper end face of the sliding seat (8), the other end of the first connecting rod (9) is hinged to the fixing frame (5), one end of the second connecting rod (10) is hinged to the lower end face of the sliding seat (8), and the other end of the second connecting rod (10) is hinged to the lower end position of the corner of the clamping arm (7).
3. The assembly fixture for the circulating planetary roller screw pair according to claim 2, wherein the limiting head (17) is provided with a limiting groove for clamping the nut clamping arm (7), and a V-shaped rubber pad (18) is arranged at a clamping position on the nut clamping arm (7).
4. The assembly fixture for the circulating type planetary roller screw pair according to claim 1, wherein the compression bars (13) are of a three-section folded line type, the number of the compression bars (13) is 10-15, and the number of the compression bars (13) is equal to the number of rollers of the circulating type planetary roller screw pair to be assembled.
5. The assembly fixture for the circulating planetary roller screw pair according to claim 1, wherein two ends of the supporting column (12) are respectively in threaded connection with the base (1) and the supporting disc (11), an adjusting nut (20) is in threaded connection with the supporting column (12), and the adjusting nut (20) is attached to the top surface of the base (1).
6. The assembly fixture for the circulating planetary roller screw pair according to claim 1, wherein a plurality of cushion blocks (23) are fixedly arranged on the cover plate (2), a plurality of connecting lugs (21) are arranged on the fixing frame (5), and the connecting lugs (21) are connected with the cushion blocks (23) through connecting bolts (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410200.0A CN113954009B (en) | 2021-11-23 | 2021-11-23 | Assembly fixture and assembly method for circulating planetary roller screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410200.0A CN113954009B (en) | 2021-11-23 | 2021-11-23 | Assembly fixture and assembly method for circulating planetary roller screw pair |
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| Publication Number | Publication Date |
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| CN113954009A CN113954009A (en) | 2022-01-21 |
| CN113954009B true CN113954009B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111410200.0A Active CN113954009B (en) | 2021-11-23 | 2021-11-23 | Assembly fixture and assembly method for circulating planetary roller screw pair |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115415790B (en) * | 2022-08-31 | 2023-08-25 | 四川航天烽火伺服控制技术有限公司 | Reverse planetary roller screw assembly fixture and machining assembly method |
| CN117140410B (en) * | 2023-10-27 | 2024-01-02 | 智龙直线(瑞金)科技有限公司 | Differential type planetary roller screw pair assembly fixture and assembly method |
Citations (5)
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|---|---|---|---|---|
| CN104847860A (en) * | 2014-02-14 | 2015-08-19 | Skf公司 | Roller screw, mounting method and tool for fitting rollers in such a roller screw |
| CN105437116A (en) * | 2015-12-14 | 2016-03-30 | 西北工业大学 | Assembling clamp for planet roller screw rod pair |
| CN109807782A (en) * | 2019-03-10 | 2019-05-28 | 西北工业大学 | A kind of planetary roller screw pair assembling jig for polytypic |
| CN112792552A (en) * | 2021-01-20 | 2021-05-14 | 内蒙古工业大学 | Centering planetary roller screw pair vertical assembling device capable of adapting to multiple models |
| CN112936146A (en) * | 2021-02-03 | 2021-06-11 | 内蒙古工业大学 | Integrated assembly fixture of reverse planetary roller screw pair |
-
2021
- 2021-11-23 CN CN202111410200.0A patent/CN113954009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847860A (en) * | 2014-02-14 | 2015-08-19 | Skf公司 | Roller screw, mounting method and tool for fitting rollers in such a roller screw |
| CN105437116A (en) * | 2015-12-14 | 2016-03-30 | 西北工业大学 | Assembling clamp for planet roller screw rod pair |
| CN109807782A (en) * | 2019-03-10 | 2019-05-28 | 西北工业大学 | A kind of planetary roller screw pair assembling jig for polytypic |
| CN112792552A (en) * | 2021-01-20 | 2021-05-14 | 内蒙古工业大学 | Centering planetary roller screw pair vertical assembling device capable of adapting to multiple models |
| CN112936146A (en) * | 2021-02-03 | 2021-06-11 | 内蒙古工业大学 | Integrated assembly fixture of reverse planetary roller screw pair |
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| CN113954009A (en) | 2022-01-21 |
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