CN213406336U - Y-axis transmission mechanism of three-dimensional position indicator - Google Patents
Y-axis transmission mechanism of three-dimensional position indicator Download PDFInfo
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- CN213406336U CN213406336U CN202021661331.7U CN202021661331U CN213406336U CN 213406336 U CN213406336 U CN 213406336U CN 202021661331 U CN202021661331 U CN 202021661331U CN 213406336 U CN213406336 U CN 213406336U
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Abstract
The utility model discloses a three-dimensional position finder's Y axle drive mechanism, three-dimensional position finder includes the operating table, X axle drive mechanism, Y axle drive mechanism, Z axle drive mechanism and slewing mechanism, operating table one side is equipped with Y axle drive mechanism, Y axle drive mechanism is connected with slewing mechanism one end, the slewing mechanism other end is connected with Z axle drive mechanism, be equipped with X axle drive mechanism on the Z axle drive mechanism, Y axle drive mechanism includes the base, the transmission slider, the lead screw subassembly, primary shaft holds guide block and secondary shaft holds guide block, the base upper end is equipped with the spout, the spout bottom is equipped with antifriction bearing, and the butt is equipped with the transmission slider on antifriction bearing in the spout, transmission slider one side is equipped with primary shaft holds the guide block, transmission slider opposite side is equipped with the secondary shaft holds the guide block, the lead screw subassembly is located and is used for driving the. Implement the utility model discloses technical scheme reasonable in design, transmission output is stable, and the precision is high, and the consume is little, has prolonged Y axle drive mechanism life.
Description
Technical Field
The utility model relates to a precision control technical field, concretely relates to Y axle drive mechanism of three-dimensional position appearance.
Background
The three-dimensional locator for brain of small animal is an important research apparatus for preclinical research of brain diseases, and it uses special marks (such as bregma) on the skull surface of small animal as basic reference point, combines with brain atlas, determines the position of some nerve structure (nucleus) in the skull of small animal by the movement of its three axes, further performs injection, stimulation and record brain electricity to nerve structure, and can be used for animal models and related research of diseases such as Parkinson's disease, epilepsy, senile dementia, brain tumor, brain injury, etc.
At present, a commonly used three-dimensional moving mechanism is used for transmission, namely a T-shaped lead screw + guide rod structure (X, Z shaft) and a T-shaped lead screw + dovetail structure (Y shaft), two ends (X, Z shaft) of the lead screw and the guide rod, and the front end (Y shaft) of the lead screw and the dovetail structure are fixed by fixing blocks, a gap (convolution) between the lead screw and a screw sleeve is adjusted in a matching way through the tightness of three sets of parts, namely PEEK plastics and metal gaskets on two sides of the fixing block and a handle at the head end of the lead screw, and after the gap is adjusted to a certain degree, a pointed screw on the side surface (with a tooth hole) of a handle extrudes and props against an outer tooth at the front end of the lead screw so as to limit the tightness position of the handle to keep the same, so that the gap state between the lead screw and the screw sleeve is kept unchanged.
However, this design has the following problems:
(1) in the back-and-forth transmission process of each shaft, the PEEK plastic gaskets and the metal gaskets on the two sides perform plane friction mutually, so that the loss is large, the gap between the screw rod and the screw sleeve is generated quickly, the transmission accuracy is deviated, and the hand feeling comfort degree is not good;
(2) in the back-and-forth transmission process of each shaft, the acting force of the rotating handle is large, so that the pointed screw on the side surface of the handle extrudes, deforms and damages the outer teeth at the front end of the screw rod, the gap between the screw rod and the screw sleeve is generated quickly, the transmission accuracy is deviated, the hand feeling comfort level is poor, and the handle is difficult to screw down for maintenance due to the fact that the outer teeth at the front end of the screw rod are damaged, so that the whole transmission mechanism is directly scrapped;
(3) the Y-axis transmission mechanism usually adopts a dovetail structure, and the dovetail structure has the defects of difficult slide block movement adjustment and large abrasion loss, thereby influencing the precision of transmission control.
SUMMERY OF THE UTILITY MODEL
The utility model provides a Y axle drive mechanism of three-dimensional position finder has solved the problem that current screw drive mechanism loss is big, transmission output is unstable, the precision is poor and life is short.
The technical scheme of the utility model is realized like this:
the embodiment of the utility model discloses a Y-axis transmission mechanism of a three-dimensional position indicator, the three-dimensional position indicator comprises an operating table, an X-axis transmission mechanism, a Y-axis transmission mechanism, a Z-axis transmission mechanism and a rotating mechanism, one side of the operating table is provided with a Y-axis transmission mechanism, the Y-axis transmission mechanism is connected with one end of a rotating mechanism, the other end of the rotating mechanism is connected with a Z-axis transmission mechanism, an X-axis transmission mechanism is arranged on the Z-axis transmission mechanism, the Y-axis transmission mechanism comprises a base, a transmission slide block, a screw rod assembly, a first bearing guide block and a second bearing guide block, the upper end of the base is provided with a chute, the bottom of the chute is provided with a rolling bearing, a transmission slide block is arranged in the chute and is abutted against the rolling bearing, a first bearing guide block is arranged on one side of the transmission slide block, a second bearing guide block is arranged on the other side of the transmission slide block, the screw rod assembly penetrates through the base and is used for driving the transmission slide block to move back and forth along the sliding groove.
Further, the screw rod assembly comprises a screw rod, a front connecting block, a rear connecting block and a rotating handle, a nut sleeve is sleeved on the screw rod and used for being connected with the base, one end of the screw rod is connected with the rear connecting block through a ball bearing, the other end of the screw rod is provided with a taper surface, and the taper surface is matched with the taper sleeve in the front connecting block.
Furthermore, the lead screw just is located the extension of tapering face one end and is equipped with connecting thread, connecting thread passes preceding connecting block and is connected with twist grip after the suit is equipped with plastics flat pad, spring pad, adjusting nut and protective sheath in proper order, be equipped with on the twist grip and be used for skid-proof anti-skidding line.
Furthermore, the first bearing guide block comprises a guide block seat, a horizontal rolling bearing and a vertical rolling bearing are arranged on one side of the guide block seat, the horizontal rolling bearing is abutted to the bottom of a U-shaped groove formed in the side face of the transmission slide block, and the vertical rolling bearing is abutted to two side faces of the U-shaped groove.
Furthermore, a side block used for limiting the transmission sliding block is arranged at one end of the U-shaped groove.
Furthermore, the first bearing guide block and the second bearing guide block have the same structure and are respectively arranged on two sides of the transmission slide block.
Furthermore, one end of the transmission sliding block is provided with a rotary fixing head used for being connected with the rotating mechanism.
Furthermore, a graduated scale is arranged on the transmission sliding block and used for measuring the displacement of the transmission sliding block.
The utility model provides a Y axle drive mechanism of three-dimensional position finder has following beneficial effect:
implement the utility model discloses a Y axle drive mechanism of three-dimensional position appearance structural design is reasonable, and transmission output is stable, and transmission control accuracy is high, and the consume is little, has prolonged Y axle drive mechanism life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded structural schematic diagram of a Y-axis transmission mechanism of a three-dimensional position finder according to an embodiment of the present invention;
fig. 2 is one of schematic structural diagrams of a Y-axis transmission mechanism of a three-dimensional position finder according to an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a Y-axis transmission mechanism of a three-dimensional position finder according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a three-dimensional position finder according to an embodiment of the present invention.
Detailed Description
The invention will be further understood by the following examples of embodiments of the invention, which are not intended to limit the invention. Insubstantial modifications and adaptations of the invention as described herein will occur to those skilled in the art and are intended to be within the scope of the invention.
Referring to fig. 1 to 4, a Y-axis transmission mechanism of a three-dimensional positioning instrument includes an operating table 100, an X-axis transmission mechanism 200, a Y-axis transmission mechanism 300, a Z-axis transmission mechanism 400 and a rotation mechanism 500, wherein the Y-axis transmission mechanism 300 is disposed at one side of the operating table 100, the Y-axis transmission mechanism 300 is connected to one end of the rotation mechanism 500, the other end of the rotation mechanism 500 is connected to the Z-axis transmission mechanism 400, the X-axis transmission mechanism 200 is disposed on the Z-axis transmission mechanism 400, the Y-axis transmission mechanism 300 includes a base 1, a transmission slider 2, a lead screw assembly 3, a first bearing guide block 4 and a second bearing guide block 5, a chute 11 is disposed at an upper end of the base 1, a rolling bearing 6 is disposed at a bottom of the chute 11, the transmission slider 2 is disposed in the chute 11 and abutted against the rolling bearing 6, the first bearing guide block 4 is disposed at one side, the other side of the transmission slide block 2 is provided with a second bearing guide block 5, the screw rod assembly 3 is arranged on the base 1 in a penetrating mode and used for driving the transmission slide block 2 to move back and forth along the sliding groove 11, specifically, the bottom of the transmission slide block 2 slides along the rolling bearing 6, and two sides of the transmission slide block 2 slide with the first bearing guide block 4 and the second bearing guide block 5 respectively, so that the transmission slide block 2 slides in the sliding groove 11 in a sliding mode through bearings at the bottom and two sides, friction resistance is small, and operation is stable.
According to the utility model discloses an embodiment, this lead screw subassembly 3 includes lead screw 301, preceding connecting block 302, back connecting block 303 and twist grip 304, the suit is equipped with nut cover 305 on the lead screw 301 and is used for being connected with base 1, lead screw 301 one end is connected with back connecting block 303 through ball bearing 306, the lead screw 301 other end is equipped with tapering face 3010, tapering face 307 with locate tapering cover 307 cooperation setting in the preceding connecting block 302, specifically, lead screw 301 front end is connected with tapering cover 307 cooperation through tapering face 307, consequently, lead screw 301 is more stable when rotating.
According to the utility model discloses an embodiment, this lead screw 301 just is located the extension of taper face 3010 one end and is equipped with connecting thread 308, connecting thread 308 is connected with twist grip 304 before passing connecting block 302 and after the suit is equipped with flat pad 309 of plastics, spring pad 310, adjusting nut 311 and protective sheath 312 in proper order, be equipped with on twist grip 304 and be used for skid-proof anti-skidding line.
According to the embodiment of the utility model, this first bearing guide 4 includes guide block seat 41, guide block seat 41 one side is equipped with horizontal antifriction bearing 42 and vertical antifriction bearing 43, horizontal antifriction bearing 42 with locate the bottom looks butt of the U-shaped groove 21 of transmission slider 2 side, vertical antifriction bearing 43 and the both sides face looks butt of this U-shaped groove 21, specifically, first bearing guide 4 all carries out the rolling friction motion through horizontal antifriction bearing 42 and vertical antifriction bearing 43 and U-shaped groove 21 inboard, has reduced frictional force, has prolonged life, has improved stability.
According to the embodiment of the present invention, one end of the U-shaped groove 21 is provided with a side block 7 for limiting the position of the transmission slide 2.
According to the utility model discloses an embodiment, this first bearing guide block 4 is the same with second bearing guide block 5 structure, and locates respectively transmission slider 2's both sides have reduced frictional force between first bearing guide block 4, second bearing guide block 5 and the transmission slider 2, have improved stability.
According to the utility model discloses an embodiment, this transmission slider 2 one end is equipped with the rotatory fixed head 8 that is used for being connected with slewing mechanism 500.
According to the utility model discloses an embodiment is equipped with scale 22 on this transmission slider 2, scale 22 is used for measuring 2 displacements of transmission slider.
The utility model provides a Y axle drive mechanism of three-dimensional position finder has following beneficial effect:
one, it is big to be distinguished from the wearing and tearing that prior art exists, the Y axle forked tail transmission structure of weak point such as transmission output unstability, this technical scheme adopts transmission slider and bearing guide block and locates the antifriction bearing of spout bottom and pass through rolling bearing and be connected, carries out rolling friction with transmission slider and bearing guide block and antifriction bearing of the change of prior art Y axle forked tail transmission structure's transmission slider and base face contact friction to reduce contact friction, reduced wearing and tearing, therefore greatly prolonged Y axle drive mechanism's life.
Secondly, the lead screw front end of lead screw subassembly is equipped with the tapering face among the Y axle drive mechanism of this technical scheme, and the tapering face sets up with the taper sleeve cooperation of locating in the preceding connecting block, lock nut and twist grip mechanism cooperation, has improved transmission output's stability, accuracy.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A Y-axis transmission mechanism of a three-dimensional position finder comprises an operating table, an X-axis transmission mechanism, a Y-axis transmission mechanism, a Z-axis transmission mechanism and a rotating mechanism, one side of the operating table is provided with a Y-axis transmission mechanism, the Y-axis transmission mechanism is connected with one end of a rotating mechanism, the other end of the rotating mechanism is connected with a Z-axis transmission mechanism, an X-axis transmission mechanism is arranged on the Z-axis transmission mechanism, it is characterized in that the Y-axis transmission mechanism comprises a base, a transmission slide block, a screw rod component, a first bearing guide block and a second bearing guide block, the upper end of the base is provided with a chute, the bottom of the chute is provided with a rolling bearing, a transmission slide block is arranged in the chute and is abutted against the rolling bearing, a first bearing guide block is arranged on one side of the transmission slide block, a second bearing guide block is arranged on the other side of the transmission slide block, the screw rod assembly penetrates through the base and is used for driving the transmission slide block to move back and forth along the sliding groove.
2. The Y-axis transmission mechanism according to claim 1, wherein the lead screw assembly comprises a lead screw, a front connecting block, a rear connecting block and a rotating handle, a nut sleeve is sleeved on the lead screw for connecting with the base, one end of the lead screw is connected with the rear connecting block through a ball bearing, the other end of the lead screw is provided with a tapered surface, and the tapered surface is matched with the tapered sleeve arranged in the front connecting block.
3. The Y-axis transmission mechanism according to claim 2, wherein the screw rod is provided with a connecting thread at one end of the taper surface in an extending manner, the connecting thread passes through the front connecting block and is connected with a rotating handle after being sequentially sleeved with a plastic flat pad, a spring pad, an adjusting nut and a protective sleeve, and the rotating handle is provided with anti-skid lines.
4. The Y-axis transmission mechanism according to claim 1, wherein the first bearing guide block includes a guide block seat, one side of the guide block seat is provided with a horizontal rolling bearing and a vertical rolling bearing, the horizontal rolling bearing abuts against the bottom of a U-shaped groove formed in a side surface of the transmission slider, and the vertical rolling bearing abuts against both side surfaces of the U-shaped groove.
5. The Y-axis transmission mechanism as claimed in claim 4, wherein one end of the U-shaped slot is provided with a side block for limiting the transmission slide block.
6. The Y-axis transmission mechanism according to claim 1, wherein the first bearing guide block and the second bearing guide block have the same structure and are respectively disposed on two sides of the transmission slide block.
7. The Y-axis transmission mechanism of claim 1, wherein one end of the transmission slide is provided with a rotary fixing head for connecting with a rotating mechanism.
8. The Y-axis transmission according to claim 1, wherein a graduated scale is provided on the transmission slider for measuring the transmission slider displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021661331.7U CN213406336U (en) | 2020-08-10 | 2020-08-10 | Y-axis transmission mechanism of three-dimensional position indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021661331.7U CN213406336U (en) | 2020-08-10 | 2020-08-10 | Y-axis transmission mechanism of three-dimensional position indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213406336U true CN213406336U (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021661331.7U Expired - Fee Related CN213406336U (en) | 2020-08-10 | 2020-08-10 | Y-axis transmission mechanism of three-dimensional position indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213406336U (en) |
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2020
- 2020-08-10 CN CN202021661331.7U patent/CN213406336U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |