CN218097530U - Positioning device for detecting axial clearance of screw rod - Google Patents
Positioning device for detecting axial clearance of screw rod Download PDFInfo
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- CN218097530U CN218097530U CN202222061527.8U CN202222061527U CN218097530U CN 218097530 U CN218097530 U CN 218097530U CN 202222061527 U CN202222061527 U CN 202222061527U CN 218097530 U CN218097530 U CN 218097530U
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Abstract
The utility model provides a positioning device for detecting the axial clearance of a screw rod, which comprises a slider support, a nut positioning chuck, a screw rod positioning chuck and a detection slider; the detection sliding block is arranged on the sliding block support in a sliding mode, and the screw rod positioning chuck is fixed to one end of the detection sliding block along the sliding direction; the nut positioning chuck is arranged in front of the screw positioning chuck along the sliding direction; the nut positioning chuck is provided with a nut clamping hole, the screw positioning chuck is provided with a screw clamping hole, and the central lines of the nut clamping hole and the screw clamping hole are overlapped. The utility model has the advantages that: the precision error of the screw rod in the axial detection can be effectively reduced, and the axial precision of the screw rod in the use process can be further ensured.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a lead screw detects technical field, in particular to positioner that lead screw axle clearance detected.
[ background of the invention ]
The screw rod is the most commonly used transmission element on tool machinery and precision machinery, and its main function is to convert rotary motion into linear motion, or to convert torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency simultaneously.
The lead screw includes screw rod and the nut that the cooperation was used, and in order to guarantee that the lead screw can satisfy the required precision, the axial clearance between screw rod and the nut needs be in certain extent, otherwise will lead to the lead screw can't satisfy the required precision. Therefore, after the screw rod is produced or used for a period of time (the gap may be changed due to abrasion in the using process), the axial gap is detected to ensure the accuracy of the screw rod.
When the existing detection device detects the axial clearance of the screw rod, the screw rod cannot be effectively positioned, so that the axial detection precision of the screw rod has large deviation, and the axial precision of the screw rod in use cannot be ensured. In view of the above problems, the present inventors have conducted intensive studies and have made the present invention.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a positioner that lead screw axial clearance detected, solves current detection device and examines time measuring in the axial clearance to the lead screw, all can't effectively fix a position the lead screw, and the axial that leads to the lead screw detects the precision and has great deviation, and then can't guarantee the problem of the axial precision of lead screw when using.
The utility model discloses a realize like this: a positioning device for detecting axial clearance of a screw rod comprises a sliding block support, a nut positioning chuck, a screw rod positioning chuck and a detection sliding block; the detection sliding block is arranged on the sliding block support in a sliding mode, and the screw rod positioning chuck is fixed to one end of the detection sliding block along the sliding direction; the nut positioning chuck is arranged in front of the screw positioning chuck along the sliding direction; the nut positioning chuck is provided with a nut clamping hole, the screw positioning chuck is provided with a screw clamping hole, and the central lines of the nut clamping hole and the screw clamping hole are overlapped.
Further, the sliding block support comprises a base and a first supporting vertical plate fixedly arranged on the base; the middle part of the first supporting vertical plate is provided with a detection sliding groove along the horizontal direction, and the detection sliding block is assembled on one side of the first supporting vertical plate in a sliding mode through the detection sliding groove.
Furthermore, one end of the first supporting vertical plate is fixedly connected with a second supporting vertical plate, the first supporting vertical plate and the second supporting vertical plate are perpendicular to each other, the nut positioning chuck is fixed on the second supporting vertical plate, and the nut positioning chuck and the screw positioning chuck are located on the same side of the first supporting vertical plate.
Furthermore, the nut positioning chuck is fixed on one side, far away from the screw positioning chuck, of the second supporting vertical plate, and a screw through hole is formed in the second supporting vertical plate; the nut clamping hole is superposed with the central line of the screw rod through hole.
Furthermore, a slide block limiting plate is arranged on one side, back to the detection slide block, of the first supporting vertical plate, and the detection slide block is fixedly connected with the slide block limiting plate through a connecting block penetrating through the detection chute.
Furthermore, the first supporting vertical plate is arranged above and below the detection sliding groove, crossed roller guide rails are arranged along the sliding direction, and guide sliding seats matched with the crossed roller guide rails are arranged at the upper end and the lower end of the sliding block limiting plate.
Furthermore, a joint plane which is jointed with the surface of the first supporting vertical plate after assembly is formed on one side, close to the first supporting vertical plate, of the detection sliding block.
Furthermore, a detection plane is formed at one end, far away from the screw positioning chuck, of the detection slide block.
Further, the nut positioning chuck is a quick chuck with three clamping jaws.
Further, the screw positioning chuck is a spring chuck.
Through adopting the technical scheme of the utility model, following beneficial effect has at least:
1. the one end of lead screw is pressed from both sides tightly fixedly through adopting screw rod positioning clamp head, adopts nut positioning clamp head to press from both sides tight fixedly to screw-nut to make the central line coincidence in nut centre gripping hole and screw rod centre gripping hole, so not only can realize effectively fixing a position the lead screw, can guarantee after the location moreover that the both ends of lead screw are in on same water flat line, consequently through adopting the utility model discloses a positioner can effectively reduce the lead screw and examine the precision error of time measuring at the axial, and then can guarantee the axial precision of lead screw when using.
2. The detection slide block, the connecting block and the slide block limiting plate are guided to slide linearly by adopting the cross roller guide rail and the guide slide seat to be mutually matched, and the cross roller guide rail has high sensitivity and very small coefficient difference between dynamic friction and static friction, so the motion stability is good, the movement error phenomenon is not easy to occur in the process of moving detection, and the detection precision of the lead screw clearance can be improved. Meanwhile, the cross roller guide rail has high positioning precision, and the repeated positioning precision can reach 0.2 mu m; and the friction resistance is small, the movement is light, the abrasion is small, and the precision retentivity is good.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a top view of the positioning device of the present invention;
fig. 2 is a front view of the positioning device of the present invention;
fig. 3 is a rear view of the positioning device of the present invention;
FIG. 4 is a structural diagram of the slider support of the present invention;
FIG. 5 is a diagram of the connection structure of the detection slider and the slider limiting plate according to the present invention;
fig. 6 is a side view of the first supporting riser and the cross roller guide of the present invention;
fig. 7 is a schematic structural view of the positioning device of the present invention when positioning the screw rod.
Description of reference numerals:
100-positioning device, 200-screw rod, 300-screw rod nut, 1-slide block support, 11-base, 12-first supporting vertical plate, 121-detection sliding groove, 13-second supporting vertical plate, 131-screw rod through hole, 2-nut positioning chuck, 21-nut clamping hole, 22-clamping jaw, 3-screw rod positioning chuck, 31-screw rod clamping hole, 4-detection slide block, 41-connecting block, 42-attaching plane, 43-detection plane, 5-slide block limiting plate, 51-guide slide block and 6-cross roller guide rail.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the technical solutions of the present invention will be described in detail below with reference to the drawings and specific embodiments.
It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience in describing the embodiments and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured and operated in a specific orientation. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 7, in a preferred embodiment of a positioning device 100 for detecting axial clearance of a screw rod according to the present invention, the positioning device 100 includes a slider support 1, a nut positioning chuck 2, a screw positioning chuck 3, and a detection slider 4; the sliding block support 1 is used for supporting; the nut positioning chuck 2 is used for clamping and fixing a feed screw nut; the screw positioning chuck 3 is used for clamping and fixing one end of a screw rod of the screw rod; the detection slide block 4 is used for pushing the screw rod to move axially through the detection slide block 4 after one end of the screw rod and the screw rod nut are clamped and fixed, and therefore the detection of the axial clearance is achieved.
The detection slide block 4 is arranged on the slide block support 1 in a sliding mode, so that the detection slide block 4 can push the screw rod of the screw rod to move axially, and the screw rod positioning chuck 3 is fixed at one end of the detection slide block 4 along the sliding direction, so that the screw rod positioning chuck 3 can move axially along with the detection slide block 4; the nut positioning chuck 2 is arranged in front of the screw positioning chuck 3 along the sliding direction; nut clamping hole 21 has on the nut location chuck 2, screw rod clamping hole 31 has on the screw rod location chuck 3, just the central line coincidence of nut clamping hole 21 and screw rod clamping hole 31 can guarantee like this that nut location chuck 2 and screw rod location chuck 3 are behind the tight lead screw of clamp, and the both ends of lead screw are in same water flat line, and then can guarantee axial clearance's detection precision.
The utility model discloses an adopt 3 one ends to the lead screw of screw rod location chuck to press from both sides tightly fixedly, adopt 2 tight fixations to the lead screw nut of nut location chuck to make the coincidence of the central line of nut centre gripping hole 21 and screw rod centre gripping hole 31, so not only can realize effectively fixing a position the lead screw, can guarantee after the location moreover that the both ends of lead screw are in on the same water flat line, consequently through adopting the utility model discloses a positioner can effectively reduce the lead screw and examine the precision error of time measuring at the axial, and then can guarantee the axial precision of lead screw when using.
In the embodiment of the present invention, the slider support 1 includes a base 11 and a first supporting vertical plate 12 fixed on the base 11; when the concrete implementation, the lower extreme of first support riser 12 can be in the same place through bolt and 11 lock pairs of base, constitutes slider support 1 through base 11 and the cooperation of first support riser 12, can make whole slider support 1 more stable, reliable, can not appear rocking the condition such as in the in-process of using.
A detection sliding groove 121 is formed in the middle of the first supporting vertical plate 12 along the horizontal direction, and the detection sliding block 4 is slidably assembled on one side of the first supporting vertical plate 12 through the detection sliding groove 121, so that the detection sliding block 4 can slide along the horizontal direction.
In the embodiment of the present invention, one end of the first supporting vertical plate 12 is fixedly connected to a second supporting vertical plate 13, so as to conveniently mount and fix the nut positioning chuck 2; the first supporting vertical plate 12 and the second supporting vertical plate 13 are perpendicular to each other, the nut positioning chuck 2 is fixed on the second supporting vertical plate 13, and the nut positioning chuck 2 and the screw positioning chuck 3 are located on the same side of the first supporting vertical plate 12, so that the screw can be clamped and positioned by the nut positioning chuck 2 and the screw positioning chuck 3, and two ends of the positioned screw of the screw rod are located on the same horizontal line.
Preferably, first support riser 12 and second support riser 13 adopt integrated into one piece to make and form, and the terminal surface of first support riser 12 and second support riser 13 is "L" type structure, so both can install nut location chuck 2 on the aspect fixedly, can further promote the stability of whole slider support 1 again.
In the embodiment of the present invention, the nut positioning chuck 2 is fixed on the second supporting vertical plate 13 at a side far from the screw positioning chuck 3, and a screw through hole 131 is formed on the second supporting vertical plate 13; the nut clamping hole 21 coincides with the central line of the screw rod through hole 131 so as to facilitate the screw rod to pass through and ensure that the positioned screw rod is positioned on the same horizontal straight line. Because the distance between the nut positioning chuck 2 and the screw positioning chuck 3 is limited, the screw rod can be positioned more conveniently by fixing the nut positioning chuck 2 on one side far away from the screw positioning chuck 3, the screw rod is also conveniently taken down after the detection is finished, and the operation is more convenient.
The embodiment of the utility model provides an in, first support riser 12 is in the back of the one side of detecting slider 4 is provided with slider limiting plate 5, detect slider 4 through passing detect spout 121's connecting block 41 with slider limiting plate 5 fixed connection. Set up slider limiting plate 5 through one side back to detecting slider 4 to through connecting block 41 will detect slider 4 and slider limiting plate 5 fixed connection together, can guarantee to detect slider 4 and can not break away from first support riser 12.
Preferably, the height of the connecting block 41 in the vertical direction is slightly smaller than the width of the detecting chute 121 in the vertical direction, so that the connecting block 41 can slide along the detecting chute 121 more smoothly.
In the embodiment of the present invention, the first supporting vertical plate 12 is disposed above and below the detecting chute 121 along the sliding direction, and the upper and lower ends of the slider limiting plate 5 have the guiding slide 51 matched with the cross roller guide 6. Through the mutual cooperation of the crossed roller guide rail 6 and the guide sliding seat 51, the detection sliding block 4, the connecting block 41 and the sliding block limiting plate 5 can only slide linearly along the horizontal direction.
The utility model discloses an adopt cross roller guide rail 6 and direction slide 31 to mutually support and guide detection slider 4, connecting block 41 and slider limiting plate 5 and carry out the rectilinear sliding, because cross roller guide rail 6 sensitivity is high, and its coefficient difference of dynamic friction and static friction is very little, consequently the motion stationarity is good, is difficult for appearing the movement error phenomenon at the in-process that removes the detection, and then can promote the detection precision in lead screw clearance. Meanwhile, the cross roller guide rail 6 has high positioning precision, and the repeated positioning precision can reach 0.2 mu m; and the friction resistance is small, the movement is light, the abrasion is small, and the precision retentivity is good.
In the embodiment of the present invention, in order to make the detection slider 4 slide more stably and smoothly, the detection slider 4 is close to one side of the first supporting vertical plate 12 is formed with the attaching plane 42 attached to the surface of the first supporting vertical plate 12 after being assembled.
The utility model discloses an in the embodiment, it is keeping away from to detect slider 4 the one end of screw rod location chuck 3 is formed with detection plane 43, specifically examines time measuring like this, and test probe is no matter which position contact with detection plane 43 can all guarantee the detection effect. Preferably, the detection slide 4 is in a rectangular parallelepiped structure.
In the embodiment of the present invention, the nut positioning chuck 2 is a quick chuck having three clamping jaws 22, which is a conventional device and will not be described in detail herein. The utility model discloses an adoption has the quick chuck of three clamping jaw 22 as nut location chuck 2, can guarantee the tight effect of clamp to the screw nut on the one hand, and on the other hand can press from both sides screw nut fast gripping, improves the efficiency of pressing from both sides tight location.
In the embodiment of the present invention, the screw positioning chuck 3 is a spring chuck, which is an existing device and will not be described in detail herein. The utility model discloses an adopt collet chuck as screw rod location chuck 3, both can guarantee the tight effect of clamp to the lead screw rod, can improve the efficiency of pressing from both sides tight location again.
The embodiment of the utility model provides an in, slider support 1, nut location chuck 2, screw rod location chuck 3, detection slider 4, slider limiting plate 5 and cross roller guide rail 6 all can adopt stainless steel to make and form to ensure to be difficult to damage at the in-process that uses.
Referring to fig. 7, when the positioning device 100 of the present invention specifically positions the lead screw, one end of the lead screw 200 passes through the nut positioning chuck 2 through the nut clamping hole 21, and one end of the lead screw 200 is inserted into the screw clamping hole 31, and the lead screw nut 300 is rotated along the lead screw 200 until the lead screw nut 300 is located in the nut clamping hole 21; one end of the screw rod 200 is clamped by the screw rod positioning chuck 3, and the screw rod nut 300 is clamped by the nut positioning chuck 2, so that the positioning of the screw rod is completed. When the axial clearance is detected specifically, the detection probe of the dial indicator needs to be in contact with the detection plane 43 of the detection slide block 4, and then the thrust in the direction away from the detection probe is applied to the detection slide block 4, so that the axial clearance value can be read by using the dial indicator.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides a positioner that lead screw axle clearance detected which characterized in that: the device comprises a sliding block support, a nut positioning chuck, a screw positioning chuck and a detection sliding block; the detection sliding block is arranged on the sliding block support in a sliding mode, and the screw rod positioning chuck is fixed to one end of the detection sliding block along the sliding direction; the nut positioning chuck is arranged in front of the screw positioning chuck along the sliding direction; the nut positioning chuck is provided with a nut clamping hole, the screw positioning chuck is provided with a screw clamping hole, and the central lines of the nut clamping hole and the screw clamping hole are overlapped.
2. The positioning device of claim 1, wherein: the sliding block support comprises a base and a first supporting vertical plate fixedly arranged on the base; the middle part of the first supporting vertical plate is provided with a detection sliding groove along the horizontal direction, and the detection sliding block is assembled on one side of the first supporting vertical plate in a sliding mode through the detection sliding groove.
3. The positioning device of claim 2, wherein: one end of the first supporting vertical plate is fixedly connected with a second supporting vertical plate, the first supporting vertical plate and the second supporting vertical plate are perpendicular to each other, the nut positioning chuck is fixed on the second supporting vertical plate, and the nut positioning chuck and the screw positioning chuck are located on the same side of the first supporting vertical plate.
4. The positioning device of claim 3, wherein: the nut positioning chuck is fixed on one side, far away from the screw positioning chuck, of the second supporting vertical plate, and a screw through hole is formed in the second supporting vertical plate; the nut clamping hole is superposed with the central line of the screw rod through hole.
5. The positioning device of claim 2, wherein: the first supporting vertical plate is provided with a sliding block limiting plate at one side back to the detection sliding block, and the detection sliding block is fixedly connected with the sliding block limiting plate through a connecting block penetrating through the detection sliding groove.
6. The positioning device of claim 5, wherein: the first supporting vertical plate is arranged above and below the detection sliding groove, crossed roller guide rails are arranged along the sliding direction, and guide sliding seats matched with the crossed roller guide rails are arranged at the upper end and the lower end of the sliding block limiting plate.
7. The positioning device of claim 2, wherein: and a joint plane which is jointed with the surface of the first supporting vertical plate after assembly is formed on one side of the detection slide block, which is close to the first supporting vertical plate.
8. The positioning device of claim 1, wherein: and a detection plane is formed at one end of the detection slide block, which is far away from the screw positioning chuck.
9. The positioning device of any one of claims 1-8, wherein: the nut positioning chuck is a quick chuck with three clamping jaws.
10. The positioning device of any one of claims 1-8, wherein: the screw rod positioning chuck is a spring chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222061527.8U CN218097530U (en) | 2022-08-05 | 2022-08-05 | Positioning device for detecting axial clearance of screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222061527.8U CN218097530U (en) | 2022-08-05 | 2022-08-05 | Positioning device for detecting axial clearance of screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218097530U true CN218097530U (en) | 2022-12-20 |
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ID=84486387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222061527.8U Active CN218097530U (en) | 2022-08-05 | 2022-08-05 | Positioning device for detecting axial clearance of screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218097530U (en) |
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2022
- 2022-08-05 CN CN202222061527.8U patent/CN218097530U/en active Active
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