CN111558836A - Ball auxiliary supporting structure - Google Patents
Ball auxiliary supporting structure Download PDFInfo
- Publication number
- CN111558836A CN111558836A CN202010531711.7A CN202010531711A CN111558836A CN 111558836 A CN111558836 A CN 111558836A CN 202010531711 A CN202010531711 A CN 202010531711A CN 111558836 A CN111558836 A CN 111558836A
- Authority
- CN
- China
- Prior art keywords
- ball screw
- inner cylinder
- mandrel
- supporting
- outer cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to an auxiliary support structure of a ball screw, which comprises an outer cylinder, an inner cylinder and a mandrel, wherein the outer cylinder is fixedly connected with the mandrel; the inner cylinder is assembled in the outer cylinder in a sliding manner; a support frame is arranged on the top side of the inner cylinder; the supporting frame is internally provided with two supporting rollers, and the axial direction of the two supporting rollers is the same as the length direction of the ball screw; an auxiliary supporting roller is further installed on the outer side of the supporting frame, and the axial direction of the auxiliary supporting roller is perpendicular to the length direction of the ball screw; the mandrel is T-shaped, penetrates through the inner cylinder from top to bottom and is connected with the end cover at the bottom end of the outer cylinder, and the top end of the mandrel is used for forming an upper limit position at which the inner cylinder slides upwards in the outer cylinder; and a spring is sleeved between the end cover of the mandrel, which is positioned at the top side of the inner cylinder and the bottom end of the outer cylinder. According to the auxiliary support structure for the ball screw, the ball screw is prevented from being subjected to flexural deformation, and the machining precision of a machine tool is ensured; stable structure and high precision.
Description
Technical Field
The invention relates to the field of mechanical equipment manufacturing, in particular to an auxiliary ball screw supporting structure.
Background
The ball screw generates downward deflection deformation under the influence of self gravity, thereby influencing various performances of the machine tool. In the prior art, a supporting structure exists, but the supporting force and the supporting height are difficult to control, the mounting and debugging efficiency is low, and the size cannot be accurately controlled.
Disclosure of Invention
In order to solve the technical problems, the invention provides an auxiliary support structure for a ball screw, which prevents the ball screw from being subjected to flexural deformation and ensures the machining precision of a machine tool; stable structure and high precision.
The technical scheme adopted by the invention for solving the technical problems is as follows: an auxiliary support structure of a ball screw comprises an outer cylinder, an inner cylinder and a mandrel; the inner cylinder is assembled in the outer cylinder in a sliding manner; a support frame is arranged on the top side of the inner cylinder; the supporting frame is internally provided with two supporting rollers, and the axial direction of the two supporting rollers is the same as the length direction of the ball screw; an auxiliary supporting roller is further installed on the outer side of the supporting frame, and the axial direction of the auxiliary supporting roller is perpendicular to the length direction of the ball screw; the mandrel is T-shaped, penetrates through the inner cylinder from top to bottom and is connected with the end cover at the bottom end of the outer cylinder, and the top end of the mandrel is used for forming an upper limit position at which the inner cylinder slides upwards in the outer cylinder; and a spring is sleeved between the end cover of the mandrel, which is positioned at the top side of the inner cylinder and the bottom end of the outer cylinder.
Furthermore, two roller surfaces of the double supporting rollers are tangent to the peripheral surface of the ball screw.
Further, when the spring is arranged between the inner cylinder and the outer cylinder, the spring is in a compressed state and has a compression amount; when the top of inner tube supported the top of the T type of dabber, the decrement of spring was used for supporting ball screw, provides the holding power, prevents that ball screw from taking place the deflection.
Furthermore, the outer wall of the inner cylinder is connected with the inner wall of the outer cylinder through a key and a key slot, so that the inner cylinder can only move along the axial direction of the outer cylinder and cannot rotate in the circumferential direction; the key is provided on one of an outer wall of the inner cylinder or an inner wall of the outer cylinder, and the key groove is provided on the other.
Furthermore, a limiting block is further arranged on the side wall of the outer barrel; the limiting block is provided with a bulge; the inner cylinder is provided with a limiting groove at a position corresponding to the bulge of the limiting block; the limiting block and the limiting groove are used for forming upper and lower limiting of the inner cylinder moving along the outer cylinder.
Furthermore, a connecting part is arranged between the top side of the inner cylinder and the support frame; a side adjusting window is formed in the side surface of the connecting part; and a top adjusting window is also arranged in the area of the bottom plate of the support frame corresponding to the mandrel, and the mandrel is adjusted through the side adjusting window or the top adjusting window.
Furthermore, the bottom end of the mandrel is exposed at the bottom side of the end cover at the bottom end of the outer cylinder, and an anti-shaking ring is arranged at the exposed part of the mandrel and used for preventing the mandrel and the outer cylinder from loosening in the working process.
Furthermore, a ball screw nut is assembled on the ball screw, and pressing plates are installed on two sides of the ball screw nut; the pressing plate is used for enabling the ball screw to act on the auxiliary supporting roller through the pressing plate when the ball screw passes through the supporting structure, so that the inner cylinder moves downwards, and the ball screw can smoothly pass through the supporting structure.
Furthermore, the bottom surface of the pressing plate is provided with an inclined guide part, and the inclined guide part is used for gradually enabling the auxiliary supporting roller to move downwards after being contacted with the auxiliary supporting roller, so that the impact force of the pressing plate on the auxiliary supporting roller is reduced.
The invention has the beneficial effects that: according to the auxiliary support structure for the ball screw, the ball screw is prevented from being subjected to flexural deformation, and the machining precision of a machine tool is ensured; the structure is stable, and the precision is high; the designed double supporting rollers can provide sliding contact with the supporting structure when the ball screw rotates for the ball screw which does not move axially, so that the influence of the supporting structure on the rotation of the ball screw is reduced, and the action precision of the ball screw frame is ensured; the designed auxiliary supporting roller and the pressing plate can enable the ball screw nut to smoothly pass through the supporting structure, the impact force is small, and the structure is stable; the hook wrench can be used for rotationally adjusting the mandrel through the side adjusting window or the top adjusting window, so that the height of the mandrel in the outer barrel is adjusted, the compression amount of the spring is adjusted, the elastic force provided by the compression amount of the spring can overcome the downward deflection deformation caused by the gravity of the ball screw, the upward deflection deformation of the ball screw due to the overlarge elastic force can be avoided, the supporting force is accurately controlled, and the normal operation of the ball screw is not influenced under the condition that the ball screw is not deflected; the design of the limiting block and the limiting groove can provide pre-limiting during the installation of the inner cylinder, the mandrel and the spring, limit the inner cylinder when the spring fails or the mandrel is loosened, and avoid the damage to the ball screw; the anti-shaking ring that adopts, accessible bolt are fixed to the bottom locking of dabber, can make the bottom mounting side of dabber have longer fixed length, strengthen the fixed degree of steadiness of dabber, prevent that the dabber is unexpected not hard up.
Drawings
Fig. 1 is a perspective view of an embodiment of a ball screw auxiliary support structure;
FIG. 2 is a schematic top view of an exemplary embodiment of a ball screw auxiliary support structure;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic view illustrating a state in which the auxiliary ball screw supporting structure of the embodiment supports a ball screw in use;
fig. 5 is a schematic view of a state in which a ball screw nut passes through the auxiliary support structure of a ball screw according to an embodiment.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1 to 5, the present embodiment provides a ball screw auxiliary support structure, which includes an outer cylinder 1, an inner cylinder 2 and a mandrel 8; the inner cylinder 2 is assembled in the outer cylinder 1 in a sliding way; the top side of the inner cylinder 2 is provided with a support frame 3; the supporting frame 3 is internally provided with double supporting rollers 4, and the axial directions of the double supporting rollers 4 are the same as the length direction of the ball screw 16; an auxiliary supporting roller 5 is further installed on the outer side of the supporting frame 3, and the axial direction of the auxiliary supporting roller 5 is perpendicular to the length direction of the ball screw 16; the mandrel 8 is T-shaped, and the mandrel 8 penetrates through the inner cylinder 2 from top to bottom and then is connected with an end cover 10 at the bottom end of the outer cylinder 1, so that the top end of the mandrel 8 forms an upper limit position at which the inner cylinder 2 slides upwards in the outer cylinder 1; and a spring 9 is sleeved between the top side of the inner cylinder and an end cover 10 at the bottom end of the outer cylinder 1 of the mandrel 8.
In the ball screw auxiliary supporting structure of the present embodiment, two roller surfaces of the double supporting rollers 4 are tangent to an outer peripheral surface of the ball screw.
In the ball screw auxiliary supporting structure of the present embodiment, when the spring 9 is installed between the inner cylinder 2 and the outer cylinder 1, it is in a compressed state and has a compression amount; when the top end of the inner cylinder 2 is abutted to the top end of the T-shaped core shaft 8, the compression amount of the spring is used for supporting the ball screw, so that supporting force is provided, and the ball screw is prevented from being deflected.
In the ball screw auxiliary supporting structure of the present embodiment, the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1 are connected by the key 15 and the key groove 14, so that the inner cylinder 2 can only move along the axial direction of the outer cylinder 1 but cannot rotate in the circumferential direction; the key 15 is provided on one of the outer wall of the inner cylinder 2 or the inner wall of the outer cylinder 1, and the key groove 14 is provided on the other.
In the auxiliary support structure for the ball screw according to the embodiment, a limit block 12 is further arranged on the side wall of the outer cylinder 1; the limiting block 12 is provided with a bulge; the inner cylinder 2 is provided with a limiting groove 13 at a position corresponding to the bulge of the limiting block 12; the limiting block 12 and the limiting groove 13 are used for forming the upper and lower limiting of the movement of the inner cylinder 2 along the outer cylinder 1.
In the auxiliary support structure for the ball screw according to the embodiment, a connecting portion is further disposed between the top side of the inner cylinder 2 and the support frame 3; a side adjusting window 6 is arranged on the side surface of the connecting part; and a top adjusting window 7 is also arranged in the area of the bottom plate of the support frame 3 corresponding to the mandrel 8, and the mandrel 8 is adjusted through the side adjusting window 6 or the top adjusting window 7.
In the auxiliary support structure for the ball screw according to the embodiment, the bottom end of the mandrel 8 is exposed out of the bottom side of the end cover 10 at the bottom end of the outer cylinder 1, and an anti-shaking ring 11 is mounted at the exposed part of the mandrel 8 for preventing the mandrel 8 and the outer cylinder 1 from loosening during operation.
In the auxiliary support structure for the ball screw according to the present embodiment, a ball screw nut 17 is mounted on the ball screw 16, and pressing plates 18 are mounted on two sides of the ball screw nut 17; the pressing plate 18 is used for enabling the ball screw 17 to act on the secondary support roller 5 through the pressing plate 18 when passing through the support structure, so that the inner cylinder moves downwards, and the ball screw can smoothly pass through the support structure.
In the ball screw auxiliary support structure of the present embodiment, the bottom surface of the pressure plate 18 has the inclined guide portion 19, and the inclined guide portion 19 is used for contacting with the secondary support roller 5 first and then gradually moving the secondary support roller 5 downward, so as to reduce the impact force of the pressure plate on the secondary support roller 5.
According to the auxiliary support structure for the ball screw, the support force is provided by the spring, the inner cylinder moves up and down in the outer cylinder, the spring is compressed in a normal working state, and the force enough for supporting the ball screw to be subjected to flexural deformation can be generated through the compression amount of the spring, so that the straightness of the ball screw is ensured; in order to prevent the ball screw from deforming upwards under the action of the spring, the upper limit of the inner cylinder is limited by the mandrel, the height of the mandrel can be finely adjusted, and the compression amount of the spring is further controlled, so that the spring provides required supporting force; the vertical section of the mandrel is T-shaped, the top end of the mandrel is provided with an inner hexagonal groove, the mandrel is extended to the inner hexagonal groove of the mandrel from the side adjusting window or the top adjusting window through a hook wrench for rotary adjustment, the height of the mandrel in the outer barrel is further adjusted, and the adjusting process is simple; after the mandrel is finely adjusted, the anti-shaking rings are required to be fixed with the bottom end of the mandrel through bolts, a plurality of anti-shaking rings are tightly attached to each other and the bottom sides of the end covers, so that the fixed length of the bottom end of the mandrel is lengthened, the fixing firmness of the mandrel is improved, and looseness caused by impact of the pressing plate is prevented; in a normal working state, a distance is reserved between the double supporting rollers, the ball screw is erected between the double supporting rollers and is tangent to the two roller surfaces of the double supporting rollers, the design of the double supporting rollers enables the ball screw to be in line contact with the two roller surfaces, and the double supporting rollers also rotate along with the matching of the rotation of the ball screw, so that the friction on the ball screw is reduced to the maximum extent; in the running process of the ball screw, when the nut needs to pass through the support structure, the nut can be guided by utilizing the pressing plates, two sides of the nut are respectively fixed with the pressing plates, the two pressing plates correspond to the auxiliary supporting rollers on two sides of the support frame 3, and two sides of the bottom surface of each pressing plate are respectively provided with an inclined guide surface; when the screw nut moves, the highest end of the inclined guide surface of the pressing plate is contacted with the auxiliary supporting roller, then under the action of the inclined guide surface on one side, the auxiliary supporting roller is pressed, the inner cylinder and the double supporting rollers are driven to move downwards to form a moving channel for the screw nut, under the action of the inclined guide surface on the other side, the auxiliary supporting roller gradually rises and drives the inner cylinder and the double supporting rollers to gradually rise, and the double supporting rollers are contacted with the ball screw again to provide supporting force.
According to the auxiliary support structure for the ball screw, the ball screw is prevented from being subjected to flexural deformation, and the machining precision of a machine tool is ensured; the structure is stable, and the precision is high; the designed double supporting rollers can provide sliding contact with the supporting structure when the ball screw rotates for the ball screw which does not move axially, so that the influence of the supporting structure on the rotation of the ball screw is reduced, and the action precision of the ball screw frame is ensured; the designed auxiliary supporting roller and the pressing plate can enable the ball screw nut to smoothly pass through the supporting structure, the impact force is small, and the structure is stable; the hook wrench can be used for rotationally adjusting the mandrel through the side adjusting window or the top adjusting window, so that the height of the mandrel in the outer barrel is adjusted, the compression amount of the spring is adjusted, the elastic force provided by the compression amount of the spring can overcome the downward deflection deformation caused by the gravity of the ball screw, the upward deflection deformation of the ball screw due to the overlarge elastic force can be avoided, the supporting force is accurately controlled, and the normal operation of the ball screw is not influenced under the condition that the ball screw is not deflected; the design of the limiting block and the limiting groove can provide pre-limiting during the installation of the inner cylinder, the mandrel and the spring, limit the inner cylinder when the spring fails or the mandrel is loosened, and avoid the damage to the ball screw; the anti-shaking ring that adopts, accessible bolt are fixed to the bottom locking of dabber, can make the bottom mounting side of dabber have longer fixed length, strengthen the fixed degree of steadiness of dabber, prevent that the dabber is unexpected not hard up.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a ball auxiliary stay structure which characterized in that: comprises an outer cylinder, an inner cylinder and a mandrel; the inner cylinder is assembled in the outer cylinder in a sliding manner; a support frame is arranged on the top side of the inner cylinder; the supporting frame is internally provided with two supporting rollers, and the axial direction of the two supporting rollers is the same as the length direction of the ball screw; an auxiliary supporting roller is further installed on the outer side of the supporting frame, and the axial direction of the auxiliary supporting roller is perpendicular to the length direction of the ball screw; the mandrel is T-shaped, penetrates through the inner cylinder from top to bottom and is connected with the end cover at the bottom end of the outer cylinder, and the top end of the mandrel is used for forming an upper limit position at which the inner cylinder slides upwards in the outer cylinder; and a spring is sleeved between the end cover of the mandrel, which is positioned at the top side of the inner cylinder and the bottom end of the outer cylinder.
2. The ball screw auxiliary support structure according to claim 1, wherein: and two roller surfaces of the double supporting rollers are tangent to the peripheral surface of the ball screw.
3. A ball screw auxiliary support structure according to claim 1 or 2, wherein: when the spring is arranged between the inner cylinder and the outer cylinder, the spring is in a compressed state and has a compression amount; when the top of inner tube supported the top of the T type of dabber, the decrement of spring was used for supporting ball screw, provides the holding power, prevents that ball screw from taking place the deflection.
4. The ball screw auxiliary support structure according to claim 1, wherein: the outer wall of the inner cylinder is connected with the inner wall of the outer cylinder through a key and a key groove, so that the inner cylinder can only move along the axial direction of the outer cylinder and cannot rotate in the circumferential direction; the key is provided on one of an outer wall of the inner cylinder or an inner wall of the outer cylinder, and the key groove is provided on the other.
5. A ball screw auxiliary support structure according to claim 1, 2 or 4, wherein: the side wall of the outer barrel is also provided with a limiting block; the limiting block is provided with a bulge; the inner cylinder is provided with a limiting groove at a position corresponding to the bulge of the limiting block; the limiting block and the limiting groove are used for forming upper and lower limiting of the inner cylinder moving along the outer cylinder.
6. The ball screw auxiliary support structure according to claim 1, wherein: a connecting part is also arranged between the top side of the inner cylinder and the support frame; a side adjusting window is formed in the side surface of the connecting part; and a top adjusting window is also arranged in the area of the bottom plate of the support frame corresponding to the mandrel, and the mandrel is adjusted through the side adjusting window or the top adjusting window.
7. A ball screw auxiliary support structure according to claim 1, 4 or 6, wherein: the bottom end of the mandrel is exposed at the bottom side of the end cover at the bottom end of the outer barrel, and the exposed part of the mandrel is provided with an anti-shaking ring for preventing the mandrel and the outer barrel from loosening in the working process.
8. The ball screw auxiliary support structure according to claim 1, wherein: the ball screw is provided with a ball screw nut, and pressing plates are arranged on two sides of the ball screw nut; the pressing plate is used for enabling the ball screw to act on the auxiliary supporting roller through the pressing plate when the ball screw passes through the supporting structure, so that the inner cylinder moves downwards, and the ball screw can smoothly pass through the supporting structure.
9. The ball screw auxiliary support structure according to claim 8, wherein: the bottom surface of the pressing plate is provided with an inclined guide part, and the inclined guide part is used for gradually moving the auxiliary supporting roller downwards after being contacted with the auxiliary supporting roller, so that the impact force of the pressing plate on the auxiliary supporting roller is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531711.7A CN111558836A (en) | 2020-06-11 | 2020-06-11 | Ball auxiliary supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531711.7A CN111558836A (en) | 2020-06-11 | 2020-06-11 | Ball auxiliary supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111558836A true CN111558836A (en) | 2020-08-21 |
Family
ID=72073845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010531711.7A Withdrawn CN111558836A (en) | 2020-06-11 | 2020-06-11 | Ball auxiliary supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111558836A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256010A (en) * | 2022-08-23 | 2022-11-01 | 东莞市威峰智能科技有限公司 | Screw rod auxiliary supporting mechanism |
| CN117644420A (en) * | 2024-01-30 | 2024-03-05 | 江苏泰基尔智能科技有限公司 | But angle regulation's accurate slip table structure |
-
2020
- 2020-06-11 CN CN202010531711.7A patent/CN111558836A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256010A (en) * | 2022-08-23 | 2022-11-01 | 东莞市威峰智能科技有限公司 | Screw rod auxiliary supporting mechanism |
| CN117644420A (en) * | 2024-01-30 | 2024-03-05 | 江苏泰基尔智能科技有限公司 | But angle regulation's accurate slip table structure |
| CN117644420B (en) * | 2024-01-30 | 2024-04-09 | 江苏泰基尔智能科技有限公司 | But angle regulation's accurate slip table structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111558836A (en) | Ball auxiliary supporting structure | |
| CN110788213A (en) | Manufacturing and processing die for motor rotor punching sheet | |
| CN109848300A (en) | A kind of rotary punching mechanism | |
| CN210450497U (en) | Hub bearing stamping equipment | |
| CN211052212U (en) | Torsion shaft straightening tool | |
| CN210907483U (en) | Be applied to bearing structure that floats of straightening of long bar material | |
| CN213997355U (en) | Water-cooling wall abrasionproof tile processingequipment | |
| CN209174714U (en) | Punching press shaping equipment for punching press auto pedal | |
| CN215316799U (en) | Bending press-fitting mechanism | |
| CN103786037B (en) | Oblique beam off-load composite guide rail structure | |
| CN113828694B (en) | Adjust spacing type motor roof pressure forming mechanism | |
| CN101905255A (en) | Intermediate roll of leveling machine | |
| CN107282706B (en) | Efficient bending machine | |
| CN213017546U (en) | Ball screw | |
| CN113027854B (en) | Roller leveler | |
| CN214360033U (en) | High-reaction-force-resisting up-down mechanism | |
| CN114888177A (en) | Stamping die for sheet metal part of automobile charging port | |
| CN109945818A (en) | A kind of roughness contourgraph | |
| CN109183732B (en) | Hinge movable dam | |
| CN109018860B (en) | Flashboard operation guiding structure and using method thereof | |
| CN201415227Y (en) | Intermediate roll of leveler | |
| CN218310386U (en) | Automatic stamping die of thrust bearing clamping piece | |
| CN111649560A (en) | Unidirectional rotation extrusion device for textile fabric dewatering device | |
| CN212144262U (en) | Punch press convenient for mounting clamp | |
| CN113182808B (en) | Bending press-fitting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200821 |
|
| WW01 | Invention patent application withdrawn after publication |