CN210209590U - Lead screw line rail coupling mechanism convenient to adjustment - Google Patents
Lead screw line rail coupling mechanism convenient to adjustment Download PDFInfo
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- CN210209590U CN210209590U CN201920985732.9U CN201920985732U CN210209590U CN 210209590 U CN210209590 U CN 210209590U CN 201920985732 U CN201920985732 U CN 201920985732U CN 210209590 U CN210209590 U CN 210209590U
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- lead screw
- screw
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- linear guide
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Abstract
The utility model discloses a lead screw line rail coupling mechanism convenient to adjustment, including the frame, feed part, nut keysets and bearing frame, it fixes in the frame to feed the part, the bearing frame is connected with the part of feeding, still includes screw nut, linear guide and driving plate, the bearing frame passes through the nut keysets and is connected with screw nut, the last slider that is equipped with of linear guide, the composite set of linear guide and slider is equipped with a plurality ofly, and the slider is connected with the driving plate, and the slider setting is in nut keysets both sides, the driving plate is fixed on the slider, is equipped with the clearance between driving plate and the nut keysets, is equipped with the adjustment gasket in the clearance. The utility model discloses an increase adjusting shim and nut keysets, the adjustment is fed part axis and linear guide's dimensional deviation, and the adjustment is fed the dimensional deviation of part axis and ball axis, and when making frame, screw bearing frame machining error appear, whole mechanism can reach the operation requirement through simple adjustment.
Description
Technical Field
The utility model relates to a machining, mechanical equipment technical field specifically are a lead screw line rail coupling mechanism convenient to adjustment.
Background
The existing machine tool workbench is roughly divided into two types, one type is rotary motion; one type is reciprocating motion, and for the reciprocating motion, two forms of a linear rail and a hard rail are adopted at present, and the linear rail is commonly used in some portable machine tools, such as a linear cutting machine, an engraving machine and the like. The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipment and precision instruments due to their low frictional resistance, and known screw pairs generally support and pretension both ends of a screw rod by means of a screw support and bearings in the screw support.
At present, in a device for driving a lead screw to feed by a motor, the combination use of the lead screw and a linear rail is a commonly used driving structure at present, and the driving structure puts higher requirements on the part processing precision for connecting a lead screw nut and a linear rail slide block. Chinese utility model patent of CN203792078U announced at 08 months 27 days 2014 discloses a lathe feeding mechanism, the utility model discloses on the motor was fixed in the saddle through the supporting seat, the motor shaft passed through the coupling joint with the lead screw. The two ends of the screw rod are supported by bearings (bearing units), the screw rod nut is fixed on the sliding plate, and the motor, the motor supporting seat, the screw rod and the screw rod tail end supporting seat form a main body structure of the feeding component. The supporting bearing at the motor end is a deep groove ball bearing, and the fit between the outer ring of the deep groove ball bearing and the motor supporting seat hole is clearance fit; the size difference exists between the tail end bearing unit and the bearing seat hole, and a larger gap exists between the tail end bearing unit and the bearing seat hole. The use of the above techniques has the following disadvantages: the size deviation that can inevitably appear in the course of working causes the machining error between lathe and the lead screw bearing frame, can cause very big influence to the assembly precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lead screw line rail coupling mechanism convenient to adjustment, through increasing adjusting shim and nut keysets, the adjustment is fed part axis and linear guide's dimensional deviation, and the adjustment is fed the dimensional deviation of part axis and ball axis, and when making frame, lead screw bearing frame machining error appear, whole mechanism can reach the operation requirement through simple adjustment.
In order to achieve the purpose of the invention, the utility model adopts the following technical scheme: the utility model provides a lead screw line rail coupling mechanism convenient to adjustment, includes the frame, feeds part, nut keysets and bearing frame, it fixes in the frame to feed the part, the bearing frame is connected with the part of feeding, still includes lead screw nut, linear guide and driving plate, the bearing frame passes through the nut keysets and is connected with lead screw nut, the last slider that is equipped with of linear guide, the composite set of linear guide and slider is equipped with a plurality ofly, the slider is connected with the driving plate, the slider sets up in nut keysets both sides, the driving plate is fixed on the slider, be equipped with the clearance between driving plate and the nut keysets, be equipped with the adjustment gasket in the clearance.
Preferably, a plurality of mounting holes are formed in the screw nut, threaded holes are formed in the nut adapter plate, a plurality of threaded holes are formed in the screw nut, and the screw nut is fixedly connected with the nut adapter plate in the threaded holes through screw locking.
Preferably, the nut keysets adopts the plane sheet metal, be equipped with waist type hole on the nut keysets, waist type hole is equipped with a plurality ofly, and a plurality of waist type holes vertically set up on the nut keysets.
Preferably, the central axis of the linear guide is parallel to the central axis of the feeding member.
Preferably, the central axis of the screw is parallel to the central axis of the feeding member.
Preferably, the adjusting shim is a flat thin plate.
Preferably, the screw is a ball screw.
Compared with the prior art, the screw rod line rail connecting mechanism which is convenient to adjust and adopts the technical scheme has the following beneficial effects:
the screw rod linear rail connecting mechanism convenient to adjust is adopted, the adjusting gasket is added between the transmission plate and the nut adapter plate, and the adjusting gasket is processed to adjust the dimensional deviation between the axis of the feeding part and the linear guide rail, so that the bearing seat and the transmission plate are connected tightly;
and secondly, the position of the nut adapter plate is adjusted to adjust the size deviation of the axis of the feeding part and the axis of the screw rod, so that the use requirement can be met by simple adjustment, and the processing errors of the base and the screw rod bearing seat can be reduced in time.
Drawings
FIG. 1 is a schematic front view of an embodiment of a lead screw linear rail connection mechanism convenient for adjustment according to the present invention;
FIG. 2 is a schematic cross-sectional view of the screw-rail connection mechanism for easy adjustment in the present embodiment;
fig. 3 is a schematic structural diagram of the nut adapter plate in this embodiment.
Reference numerals: 1. a machine base; 2. a drive plate; 3. a feeding member; 4. a lead screw nut; 5. a lead screw; 6. adjusting the gasket; 7. a nut adapter plate; 71. a kidney-shaped hole; 8. a linear guide rail; 9. a slider; 10. and a bearing seat.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic front view showing an embodiment of a screw-rail connection mechanism for facilitating adjustment, and fig. 2 is a schematic cross-sectional view showing the screw-rail connection mechanism for facilitating adjustment, which includes a housing 1, a feeding member 3, a nut adapter plate 7 and a bearing seat 10, wherein the feeding member 3 is fixed in the housing 1, and the feeding member 3 is constrained on the base and has freedom to move and rotate along an axial direction. Bearing frame 10 the bearing frame is connected with feeding part 3, and bearing frame 10 drives feeding part 3 and moves along the axis direction. Nut keysets 7 is connected with feeding part 3 through bearing frame 10, be fixed with lead screw 5 in the nut keysets 7, still include linear guide 8 and driving plate 2, be equipped with slider 9 on the linear guide 8, linear guide 8 and slider 9's composite set are equipped with a plurality ofly, slider 9 is fixed on frame 1, slider 9 sets up in nut keysets 7 both sides, driving plate 2 is fixed on slider 9, be equipped with the clearance between driving plate 2 and the nut keysets 7, be equipped with adjusting shim 6 in the clearance. Still include screw nut 4, screw nut 4 is last to be equipped with a plurality of mounting holes. In this embodiment, the spacer 6 is a flat thin plate, and the screw 5 is a ball screw.
As shown in fig. 3, which is a schematic structural diagram of the nut adapter plate, a plurality of threaded holes are formed in the nut adapter plate 7, and screws pass through mounting holes in the screw nut 4 and are locked in the threaded holes, so that the screw nut 4 and the nut adapter plate 7 are fixed. The spindle nut 4 is connected to a bearing block 10 via a nut adapter plate 7. The nut adapter plate 7 is provided with a plurality of waist-shaped holes 71, and the plurality of waist-shaped holes 71 are longitudinally arranged on the nut adapter plate 7. In the present embodiment, the nut adaptor plate 7 is a flat thin plate.
The adjusting method of the lead screw linear rail connecting mechanism convenient to adjust comprises the following steps: step 1, machining an adjusting gasket 6, adjusting the size deviation between the axis of a feeding component 3 and a linear guide rail 8, and locking a transmission plate 2 and a bearing seat 10;
and 3, starting a mechanism to drive the feeding component 3 to move along the axis of the screw 5 and the direction of the linear guide rail 8, and observing the load of the motor.
The two sides of the nut adapter plate 7 are respectively provided with a sliding block 9 and a linear guide rail 8, the linear guide rail 8 is fixed on the machine base 1, the sliding block 9 is fixed on the linear guide rail 8, a convex block on the linear guide rail 8 is clamped in a clamping groove on the sliding block 9, the upper surface of the sliding block 9 is connected with the transmission plate 2, and after the mechanism is installed, the feeding component 3 and the transmission plate 2 are driven to move along the axis of the ball screw 5 and the direction of the linear guide rail 8. The central axis of the linear guide rail 8 is ensured to be arranged in parallel with the central axis of the feeding component 3, and the central axis of the lead screw 5 is arranged in parallel with the central axis of the feeding component 3. In the machining process, size deviation occurs between the feeding component 3, the linear guide rail 8 and the ball screw 5, the grinding adjusting gasket 6 keeps the transmission plate 2 and the feeding component 3 in an axis parallel arrangement, and the height error between the screw nut 4 and the bearing seat 10 is adjusted through the height adjustment of the bolt and the nut in the kidney-shaped hole 71, so that the axis of the feeding component 3 and the axis of the screw 5 are ensured to be in a parallel arrangement.
The above is the preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a lead screw line rail coupling mechanism convenient to adjustment which characterized in that: comprises a machine base (1), a feeding component (3), a nut adapter plate (7) and a bearing seat (10), the feeding component (3) is fixed in the machine base (1), the bearing seat (10) is connected with the feeding component (3), the feeding mechanism also comprises a screw nut (4), a linear guide rail (8) and a transmission plate (2), the bearing seat (10) is connected with the screw nut (4) through a nut adapter plate (7), the linear guide rail (8) is provided with a plurality of sliding blocks (9), the combination device of the linear guide rail (8) and the sliding blocks (9) is provided with a plurality of sliding blocks, the sliding blocks (9) are connected with the transmission plate (2), the sliding blocks (9) are arranged on two sides of the nut adapter plate (7), the driving plate (2) is fixed on the sliding block (9), a gap is arranged between the driving plate (2) and the nut adapter plate (7), and an adjusting gasket (6) is arranged in the gap.
2. The adjustable lead screw linear rail connection of claim 1, wherein: the lead screw nut (4) is provided with a plurality of mounting holes, the nut adapter plate (7) is provided with a plurality of threaded holes, and the lead screw nut (4) is fixed with the nut adapter plate (7) in the threaded holes through screw locking.
3. The adjustable lead screw linear rail connection of claim 1, wherein: the nut keysets (7) adopt the plane sheet metal, be equipped with waist type hole (71) on nut keysets (7), waist type hole (71) are equipped with a plurality ofly, and a plurality of waist type holes (71) vertically set up on nut keysets (7).
4. The adjustable lead screw linear rail connection of claim 1, wherein: the central axis of the linear guide rail (8) is parallel to the central axis of the feeding component (3).
5. The adjustable lead screw linear rail connection of claim 1, wherein: the central axis of the screw rod (5) is parallel to the central axis of the feeding component (3).
6. The adjustable lead screw linear rail connection of claim 1, wherein: the adjusting shim (6) is a plane thin plate.
7. The adjustable lead screw linear rail connection of claim 1, wherein: the lead screw is a ball screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985732.9U CN210209590U (en) | 2019-06-27 | 2019-06-27 | Lead screw line rail coupling mechanism convenient to adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985732.9U CN210209590U (en) | 2019-06-27 | 2019-06-27 | Lead screw line rail coupling mechanism convenient to adjustment |
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| Publication Number | Publication Date |
|---|---|
| CN210209590U true CN210209590U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985732.9U Active CN210209590U (en) | 2019-06-27 | 2019-06-27 | Lead screw line rail coupling mechanism convenient to adjustment |
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| CN (1) | CN210209590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181318A (en) * | 2019-06-27 | 2019-08-30 | 江苏大卫精工科技有限公司 | A kind of lead screw Xian Gui bindiny mechanism being conveniently adjusted and its method of adjustment |
-
2019
- 2019-06-27 CN CN201920985732.9U patent/CN210209590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181318A (en) * | 2019-06-27 | 2019-08-30 | 江苏大卫精工科技有限公司 | A kind of lead screw Xian Gui bindiny mechanism being conveniently adjusted and its method of adjustment |
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