CN218761190U - Guide rail advance and retreat operation mechanism - Google Patents
Guide rail advance and retreat operation mechanism Download PDFInfo
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- CN218761190U CN218761190U CN202223048267.7U CN202223048267U CN218761190U CN 218761190 U CN218761190 U CN 218761190U CN 202223048267 U CN202223048267 U CN 202223048267U CN 218761190 U CN218761190 U CN 218761190U
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- guide rail
- screw rod
- main shaft
- screw
- lead screw
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Abstract
The utility model belongs to the technical field of the guide rail, especially, relate to a guide rail advance and retreat running gear. The utility model discloses, including the bearing frame, the bearing frame on be equipped with outer rail guide holder, outer rail guide holder and bearing frame between link to each other through the connecting piece. The utility model discloses in the use, rotate coaxial direct-connection lead screw subassembly, promote impeller and main shaft axle shell circular guide through coaxial direct-connection lead screw subassembly, the impeller can avoid coaxial direct-connection lead screw subassembly and the direct bumps of main shaft axle shell circular guide, the impeller adopts detachable construction, be convenient for change the maintenance, coaxial direct-connection lead screw subassembly is when promoting main shaft axle shell circular guide, main shaft axle shell circular guide is symmetrical atress balanced stable all around, the rigidity is good, coaxial direct-connection lead screw subassembly directly couples positioning accuracy height, the forward and reverse clearance is little, the dustproof leakproofness of coaxial direct-connection lead screw subassembly is good, the appearance is small, the loaded down with trivial details multistage mechanical transmission's loss of precision has been solved, the practicality is stronger.
Description
Technical Field
The utility model belongs to the technical field of the guide rail, a guide rail advance and retreat running gear is related to.
Background
The existing guide rail is installed by adopting a screw rod in a single side, the thrust of forward and backward operation is transmitted to other edges in a single side mode, the straightness of the guide rail has unstable factors during forward and backward operation, the damage is fast, a pan rod is transmitted to a pan wheel and a pan wheel internal thread transmission guide rail, and the pan wheel and the pan rod are transmitted more, so that the mechanical structure tends to be complex, flat and poor, the model position difference is multistage, the addition is avoided, and the precision is lost. Therefore, the guide rail advancing and retreating running mechanism which solves the problem of complicated precision loss of multi-stage mechanical transmission, ensures that the stress of the guide rail is uniformly distributed and balanced, improves the precision of the forward and reverse clearance of the screw rod, improves the positioning precision of the main shaft advancing and retreating guide rail and has small volume is very necessary.
In order to overcome the defects of the prior art, people continuously explore and provide various solutions, for example, a chinese patent discloses an electric lead screw linear guide rail [ application number: 202111139820.5], comprising a stepping motor, a coupler, a motor bracket, a transmission screw rod, a guide rail platform and a guide rail tail end fixing frame; connecting holes are formed in the periphery of the guide rail platform; the lower part of the guide rail platform is provided with two positioning notches, and the guide rail tail end fixing frame is detachably connected with the two positioning notches at the lower part of the guide rail platform; the center of the upper part of the guide rail platform is detachably connected with a motor bracket; the upper end of the motor bracket is detachably connected with the stepping motor; the output end shaft of the stepping motor is connected with the upper end of the coupler; the upper end of the transmission screw rod is connected with the lower end of the coupler; the lower end of the transmission screw rod is detachably connected with the upper end of the guide rail tail end fixing support.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a guide rail advance and retreat running gear.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
a guide rail driving and reversing operation mechanism comprises a bearing seat, wherein an outer rail guide seat is arranged on the bearing seat, the outer rail guide seat is connected with the bearing seat through a connecting piece, a spindle shaft shell circular guide rail capable of linearly reciprocating along the vertical direction is arranged in the outer rail guide seat, a coaxial direct-connection screw rod assembly is arranged in the bearing seat, the coaxial direct-connection screw rod assembly penetrates through the spindle shaft shell circular guide rail, a pushing piece is arranged on the spindle shaft shell circular guide rail, and the pushing piece corresponds to the coaxial direct-connection screw rod assembly in position.
In the above-mentioned guide rail advance and retreat running mechanism, the coaxial direct-connected screw rod assembly includes the screw rod that sets up in the bearing frame, the screw rod run through main shaft axle housing round guide rail, the bearing frame on be equipped with the screw rod driving piece, the screw rod driving piece link to each other with the screw rod.
In the above-mentioned guide rail advancing and retreating operation mechanism, the screw rod driving member includes a motor disposed on the bearing seat, a deceleration adjusting portion is disposed between a rotation shaft of the motor and the screw rod, one end of the deceleration adjusting portion is connected to the rotation shaft of the motor, and the other end is connected to the screw rod.
In the above-mentioned guide rail advancing and retreating operation mechanism, the deceleration adjusting part includes a speed reducer disposed between the rotation shaft of the motor and the screw rod, one end of the speed reducer is connected to the rotation shaft of the motor, and the other end is connected to the screw rod.
In the guide rail advancing and retreating running mechanism, a main shaft is arranged between the main shaft shell circular guide rail and the screw rod, the screw rod penetrates through the main shaft, and the main shaft is connected with the pushing piece.
In the above-mentioned guide rail advancing and retreating operation mechanism, the pushing member includes a shaft housing guide rail end cap and a screw nut which are arranged on the circular guide rail of the shaft housing of the main shaft, and the shaft housing guide rail end cap and the screw nut respectively correspond to the positions of the screw rod.
In the guide rail advancing and retreating running mechanism, the shaft housing guide rail end cover and the main shaft housing circular guide rail are fixed through bolt screwing, and the outer diameter of the main shaft is smaller than the inner diameter of the main shaft housing circular guide rail.
In the above-mentioned guide rail advancing and retreating operation mechanism, the bearing seat is internally provided with a screw rod fixing piece, and the screw rod penetrates through the screw rod fixing piece.
In the above-mentioned guide rail advancing and retreating operation mechanism, the screw rod fixing member includes a screw rod fixing bearing disposed in the bearing seat, and the screw rod fixing bearing is fixedly connected to the bearing seat.
In the above-mentioned guide rail advancing and retreating operation mechanism, the connecting piece includes a plurality of long-foot bolts arranged between the outer rail guide seat and the bearing seat.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses in the use, rotate coaxial direct-connection lead screw subassembly, promote impeller and main shaft axle shell circular guide through coaxial direct-connection lead screw subassembly, the impeller can avoid coaxial direct-connection lead screw subassembly and the direct bumps of main shaft axle shell circular guide, the impeller adopts detachable construction, be convenient for change the maintenance, coaxial direct-connection lead screw subassembly is when promoting main shaft axle shell circular guide, main shaft axle shell circular guide is symmetrical atress balanced stable all around, the rigidity is good, coaxial direct-connection lead screw subassembly directly couples positioning accuracy height, the forward and reverse clearance is little, the dustproof leakproofness of coaxial direct-connection lead screw subassembly is good, the appearance is small, the loaded down with trivial details multistage mechanical transmission's loss of precision has been solved, the practicality is stronger.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Fig. 3 is an enlarged schematic view at B in fig. 1.
In the figure: the device comprises a bearing seat 1, an outer rail guide seat 2, a connecting piece 3, a main shaft shell round guide rail 4, a coaxial direct-connection lead screw assembly 5, a pushing piece 6, a lead screw 7, a lead screw driving piece 8, a motor 9, a speed reduction adjusting part 10, a speed reducer 11, a main shaft 12, a shaft shell guide rail end cover 13, a lead screw nut 14, a lead screw fixing piece 15, a lead screw fixing bearing 16 and a long-leg bolt 17.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, a guide rail advancing and retreating operation mechanism comprises a bearing seat 1, wherein an outer rail guide seat 2 is arranged on the bearing seat 1, the outer rail guide seat 2 is connected with the bearing seat 1 through a connecting piece 3, a spindle shaft shell circular guide rail 4 capable of reciprocating and linearly moving along the vertical direction is arranged in the outer rail guide seat 2, a coaxial direct-connection screw rod assembly 5 is arranged in the bearing seat 1, the coaxial direct-connection screw rod assembly 5 penetrates through the spindle shaft shell circular guide rail 4, a pushing piece 6 is arranged on the spindle shaft shell circular guide rail 4, and the pushing piece 6 corresponds to the coaxial direct-connection screw rod assembly 5 in position.
In the embodiment, in the using process, the coaxial direct-connection screw rod assembly 5 is rotated, the pushing member 6 and the spindle shaft shell circular guide rail 4 are pushed through the coaxial direct-connection screw rod assembly 5, the pushing member 6 can avoid direct collision of the coaxial direct-connection screw rod assembly 5 and the spindle shaft shell circular guide rail 4, the pushing member 6 adopts a detachable structure, the replacement and maintenance are convenient, when the coaxial direct-connection screw rod assembly 5 pushes the spindle shaft shell circular guide rail 4, the periphery of the spindle shaft shell circular guide rail 4 is uniformly and stably stressed, the rigidity is good, the direct connection positioning precision of the coaxial direct-connection screw rod assembly 5 is high, the forward and reverse gaps are small, the coaxial direct-connection screw rod assembly 5 is good in dust prevention and sealing performance and small in size, the problem of precision loss of complicated multistage mechanical transmission is solved, and the practicability is high.
Referring to fig. 1-3, the coaxial direct-connection screw rod assembly 5 includes a screw rod 7 disposed in a bearing seat 1, the screw rod 7 penetrates through a circular guide rail 4 of a spindle shaft housing, a screw rod driving member 8 is disposed on the bearing seat 1, and the screw rod driving member 8 is connected with the screw rod 7.
Specifically speaking, in the use, start lead screw driving piece 8, drive lead screw 7 through lead screw driving piece 8 and rotate, promote impeller 6 and main shaft axle shell circular guide rail 4 through lead screw 7, impeller 6 can avoid coaxial direct-connection lead screw subassembly 5 and main shaft axle shell circular guide rail 4 direct collision, impeller 6 adopts detachable construction, the maintenance of being convenient for changes, lead screw 7 is when promoting main shaft axle shell circular guide rail 4, main shaft axle shell circular guide rail 4 is the balanced stable of symmetrical atress all around, the rigidity is good, lead screw 7 direct connection positioning accuracy is high, the positive reverse clearance is little, lead screw 7 is dustproof the leakproofness good, the appearance is small, the loss of precision of loaded down with trivial details multistage mechanical transmission has been solved, and the practicality is stronger.
Referring to fig. 1 and 2, the screw driving member 8 includes a motor 9 disposed on the bearing seat 1, a deceleration adjusting portion 10 is disposed between a rotation shaft of the motor 9 and the screw 7, one end of the deceleration adjusting portion 10 is connected to the rotation shaft of the motor 9, and the other end is connected to the screw 7.
In this embodiment, when the lead screw 7 needs to be rotated, the motor 9 is started, the lead screw 7 is driven to rotate through the motor 9, the speed reduction adjusting part 10 plays a role in adjusting the rotating speed, and the motor 9 adopts a forward and reverse rotating motor.
The speed reduction adjusting part 10 comprises a speed reducer 11 arranged between a rotating shaft of the motor 9 and the screw rod 7, one end of the speed reducer 11 is connected with the rotating shaft of the motor 9, and the other end of the speed reducer is connected with the screw rod 7.
In this embodiment, the speed reducer 11 plays a role in adjusting the rotating speed, and the motor 9, the speed reducer 11 and the lead screw 7 are in a coaxial straight connection structure, so that the positioning is fast and accurate.
Referring to fig. 1, a main shaft 12 is arranged between the main shaft housing circular guide rail 4 and the screw rod 7, the screw rod 7 penetrates through the main shaft 12, and the main shaft 12 is connected with the pushing piece 6.
In the embodiment, the main shaft 12 is fixedly connected with the main shaft shell circular guide rail 4, the screw rod 7 penetrates through the main shaft 12, the axis of the screw rod 7 is superposed with the main shaft 12, the coaxial direct connection positioning precision is high, and the forward and reverse gaps are small.
The pushing piece 6 comprises a shaft housing guide rail end cover 13 and a screw nut 14 which are arranged on the main shaft housing circular guide rail 4, and the shaft housing guide rail end cover 13 and the screw nut 14 respectively correspond to the screw 7.
In this embodiment, in the rotation process of the lead screw 7, the end cover 13 of the shaft housing guide rail and the lead screw nut 14 are pushed, so as to drive the circular guide rail 4 of the spindle shaft housing to synchronously advance and retreat.
The spindle housing guide rail end cover 13 is fixed with the spindle housing circular guide rail 4 through bolt screwing, and the outer diameter of the spindle 12 is smaller than the inner diameter of the spindle housing circular guide rail 4, so that the structure is reasonable.
Referring to fig. 2, a screw fixing member 15 is disposed in the bearing seat 1, and the screw 7 penetrates through the screw fixing member 15.
In this embodiment, the screw fixing member 15 is used to fix the screw 7, so as to prevent the screw 7 from tilting and deviating in angle.
Referring to fig. 1 and 3, the lead screw fixing member 15 includes a lead screw fixing bearing 16 disposed in the bearing housing 1, and the lead screw fixing bearing 16 is fixedly connected to the bearing housing 1.
In this embodiment, the lead screw fixing bearing 16 is used for fixing the lead screw 7, so as to prevent the lead screw 7 from inclining and deviating in angle, and meanwhile, the rotation is not affected.
Referring to fig. 1, the connecting member 3 includes a plurality of long-leg bolts 17 disposed between the outer rail guide 2 and the bearing seat 1.
In this embodiment, the long-leg bolt 17 is provided to facilitate the disassembly and assembly.
The utility model discloses a theory of operation is:
in the using process, the motor 9 is started, the lead screw 7 is driven to rotate by the motor 9, the speed reducer 11 plays a role in adjusting the rotating speed, the shaft shell guide rail end cover 13, the lead screw nut 14 and the main shaft shell circular guide rail 4 are pushed by the lead screw 7, the shaft shell guide rail end cover 13 and the lead screw nut 14 adopt detachable structures, the replacement and maintenance are convenient, when the lead screw 7 pushes the main shaft shell circular guide rail 4, the periphery of the main shaft shell circular guide rail 4 is symmetrical and stressed stably, the rigidity is good, the lead screw 7 is directly connected and positioned with high precision and small forward and reverse clearances, the lead screw 7 is good in dustproof sealing performance and small in external size, the precision loss of complicated multistage mechanical transmission is solved, and the practicability is strong,
the main shaft 12 is fixedly connected with the main shaft shell circular guide rail 4, the screw rod 7 penetrates through the main shaft 12, the axis of the screw rod 7 is superposed with the main shaft 12, the coaxial direct connection positioning precision is high, the forward and reverse gaps are small,
in the rotation process of the screw rod 7, the end cover 13 of the guide rail of the shaft shell and the screw rod nut 14 are pushed, so as to drive the circular guide rail 4 of the shaft shell of the main shaft to synchronously advance and retreat,
the screw rod fixing bearing 16 is used for fixing the screw rod 7, preventing the screw rod 7 from inclining and deviating in angle, simultaneously not influencing the rotation,
the long-foot bolt 17 is convenient to disassemble and assemble.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Although the terms of the bearing seat 1, the outer rail guide seat 2, the connecting piece 3, the spindle axle housing circular guide rail 4, the coaxial direct-connection screw rod assembly 5, the pushing piece 6, the screw rod 7, the screw rod driving piece 8, the motor 9, the speed reduction adjusting part 10, the speed reducer 11, the spindle 12, the axle housing guide rail end cover 13, the screw rod nut 14, the screw rod fixing piece 15, the screw rod fixing bearing 16, the long-foot bolt 17 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. The guide rail advancing and retreating running mechanism comprises a bearing seat (1) and is characterized in that an outer rail guide seat (2) is arranged on the bearing seat (1), the outer rail guide seat (2) is connected with the bearing seat (1) through a connecting piece (3), a main shaft shell circular guide rail (4) capable of linearly reciprocating in the vertical direction is arranged in the outer rail guide seat (2), a coaxial direct-connection lead screw assembly (5) is arranged in the bearing seat (1), the coaxial direct-connection lead screw assembly (5) penetrates through the main shaft shell circular guide rail (4), a pushing piece (6) is arranged on the main shaft shell circular guide rail (4), and the pushing piece (6) corresponds to the coaxial direct-connection lead screw assembly (5).
2. The guide rail advancing and retreating running mechanism is characterized in that the coaxial direct-connection screw rod assembly (5) comprises a screw rod (7) arranged in a bearing seat (1), the screw rod (7) penetrates through a main shaft shell circular guide rail (4), a screw rod driving part (8) is arranged on the bearing seat (1), and the screw rod driving part (8) is connected with the screw rod (7).
3. The guide rail advancing and retreating running mechanism is characterized in that the screw rod driving piece (8) comprises a motor (9) arranged on the bearing seat (1), a speed reduction adjusting part (10) is arranged between the rotating shaft of the motor (9) and the screw rod (7), one end of the speed reduction adjusting part (10) is connected with the rotating shaft of the motor (9), and the other end of the speed reduction adjusting part is connected with the screw rod (7).
4. The guide rail advancing-retreating running mechanism according to claim 3, wherein the deceleration adjusting portion (10) comprises a decelerator (11) disposed between the rotating shaft of the motor (9) and the screw (7), and one end of the decelerator (11) is connected to the rotating shaft of the motor (9) and the other end is connected to the screw (7).
5. The guide rail advancing and retreating running mechanism according to claim 4, characterized in that a main shaft (12) is arranged between the main shaft housing circular guide rail (4) and the screw rod (7), the screw rod (7) penetrates through the main shaft (12), and the main shaft (12) is connected with the pushing piece (6).
6. The guide rail advancing and retreating running mechanism is characterized in that the pushing piece (6) comprises a shaft housing guide rail end cover (13) and a screw nut (14) which are arranged on the main shaft housing circular guide rail (4), and the shaft housing guide rail end cover (13) and the screw nut (14) respectively correspond to the position of the screw (7).
7. The guide rail advancing-retreating running mechanism according to claim 6, characterized in that the shaft housing guide rail end cover (13) is fixed with the main shaft housing circular guide rail (4) through bolt screwing, and the outer diameter of the main shaft (12) is smaller than the inner diameter of the main shaft housing circular guide rail (4).
8. The guide rail advancing and retreating running mechanism is characterized in that a screw rod fixing piece (15) is arranged in the bearing seat (1), and the screw rod (7) penetrates through the screw rod fixing piece (15).
9. The guide rail advancing and retreating running mechanism according to claim 8, wherein the screw fixing member (15) comprises a screw fixing bearing (16) arranged in the bearing seat (1), and the screw fixing bearing (16) is fixedly connected with the bearing seat (1).
10. The guide rail advancing-retreating running mechanism according to claim 9, characterized in that the connecting member (3) comprises a plurality of long bolts (17) arranged between the outer guide rail guide base (2) and the bearing base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048267.7U CN218761190U (en) | 2022-11-16 | 2022-11-16 | Guide rail advance and retreat operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048267.7U CN218761190U (en) | 2022-11-16 | 2022-11-16 | Guide rail advance and retreat operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761190U true CN218761190U (en) | 2023-03-28 |
Family
ID=85649667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223048267.7U Active CN218761190U (en) | 2022-11-16 | 2022-11-16 | Guide rail advance and retreat operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761190U (en) |
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2022
- 2022-11-16 CN CN202223048267.7U patent/CN218761190U/en active Active
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