CN216869367U - Lead screw runout detection supporting device - Google Patents
Lead screw runout detection supporting device Download PDFInfo
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- CN216869367U CN216869367U CN202122959288.3U CN202122959288U CN216869367U CN 216869367 U CN216869367 U CN 216869367U CN 202122959288 U CN202122959288 U CN 202122959288U CN 216869367 U CN216869367 U CN 216869367U
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- lead screw
- supporting seat
- base
- supporting
- runout detection
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Abstract
The lead screw runout detection supporting device comprises a base, a first supporting seat and a second supporting seat, wherein the first supporting seat and the second supporting seat are arranged on the base; the lead screw support device is characterized in that supporting salient points are arranged on the first supporting seat and the second supporting seat respectively, the positions of the supporting salient points on the first supporting seat and the second supporting seat are opposite, and a groove of a lead screw to be detected can be embedded to support the lead screw. Compared with the prior art, the screw rod jumping detection device has the advantages that the inner surface of the screw rod to be detected serves as a support through the support base with the support salient points, the inner surface serves as a reference surface to conduct screw rod jumping detection, and the detection result is more accurate.
Description
Technical Field
The utility model relates to the field of mechanical element detection, in particular to a lead screw bounce detection supporting device.
Background
The lead screw is a common transmission element for machine tools and precision machines. The shape of the screw rod is a cylinder with a length far larger than the diameter, and the surface of the screw rod is provided with a spiral groove extending along the radial direction. The main function of the screw rod is to convert the rotary motion into linear motion through the spiral groove or convert the torque into axial repeated acting force, and the screw rod has the characteristics of high precision, reversibility and high efficiency. The jumping value of the lead screw reflects the precision of the lead screw, and the jumping detection of the lead screw is indispensable for ensuring that the precision of the produced lead screw meets the requirement.
As shown in fig. 1, the conventional screw runout detecting and supporting device is a supporting block provided with a V-shaped groove. When the lead screw is run out to be detected, the lead screw is erected on the supporting blocks which are arranged in parallel, the lead screw is rotated, the positions of the two ends, the middle part and the like of the lead screw are run out to be detected by using the indicating meter in the rotating process of the lead screw, and the obtained data is run out of the lead screw. The detection reference surface of the lead screw bounce detection supporting device is the outer diameter surface of the lead screw, but when the lead screw works, the ball nut is in contact with the groove of the lead screw to generate rolling friction, namely the reference surface of actual working is the inner surface of the groove of the lead screw. Therefore, the detection reference surface of the screw bounce detection supporting device in the prior art is not consistent with the reference surface of the screw in actual operation, and the obtained data has large errors.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a lead screw bounce detection supporting device taking the inner surface of a lead screw groove as a supporting surface.
The utility model is realized by the following technical scheme: the device comprises a base, a first supporting seat and a second supporting seat, wherein the first supporting seat and the second supporting seat are arranged on the base; the lead screw positioning device is characterized in that supporting salient points are respectively arranged on the first supporting seat and the second supporting seat, the positions of the supporting salient points on the first supporting seat and the second supporting seat are opposite, and a groove of a lead screw to be detected can be embedded to support the lead screw. When the lead screw bounce detection supporting device is used for detecting the bounce of the lead screw, the supporting salient points sink into the groove of the lead screw, the rotation of the lead screw takes the groove as a reference surface and is the same as the reference surface in actual work, and the measured bounce value is more accurate.
Furthermore, the supporting salient points are spherical, so that smooth rotation of the lead screw is ensured, and abrasion is reduced.
Furthermore, the upper surface of the base is provided with a sliding chute, and the second supporting seat is arranged on the sliding chute and can slide along the sliding chute; the distance between the first supporting seat and the second supporting seat can be adjusted through the sliding grooves so as to adapt to lead screws with different diameters.
Further, the device also comprises an adjusting mechanism, wherein the adjusting mechanism comprises a sliding block and a locking bolt; the sliding block is arranged in the sliding groove and is opposite to the second supporting seat, and the locking bolt penetrates through the sliding block and the second supporting seat and can lock the second supporting seat and the sliding block; the interval accessible of first supporting seat and second supporting seat adjustment mechanism locks, prevents to take place not hard up in the testing process, guarantees the precision that detects.
Furthermore, a plurality of positioning concave positions which are distributed in parallel with the direction of the sliding groove are arranged on the inner wall of the sliding groove of the base; the adjusting mechanism further comprises a positioning strip arranged on the sliding block, and the free end part of the positioning strip is abutted with the positioning concave position; the position and the interval of the positioning concave position are arranged according to the specifications of different lead screws, and the corresponding position can be directly adjusted according to the specifications of the lead screw to be measured during use, so that the adjusting process is more convenient.
Furthermore, the adjusting mechanism is further provided with an elastic sheet, the fixed end part of the positioning strip is fixed on the sliding block through the elastic sheet, and the elastic sheet generates elastic force which enables the free end part of the positioning strip to be abutted against the positioning concave position.
Furthermore, the first support seat comprises a first base arranged on the base and a first support frame, one end of the first support frame is inserted on the first base, and the other end of the first support frame is provided with the support salient point; the second supporting seat comprises a second base and a second supporting frame, the second base is arranged on the base, one end of the second supporting frame is inserted into the second base, and the other end of the second supporting frame is provided with the supporting salient points. Can dismantle between support frame and the base, can change the support frame of corresponding specification according to the lead screw of different specifications, application scope is wider.
Furthermore, a scale pointer is arranged on the second supporting seat, a scale mark corresponding to the positioning concave position is arranged at a position, adjacent to the scale pointer, on the base, and the distance is adjusted according to the scale pointer and the scale mark during use, so that the adjusting process is more convenient.
Drawings
Fig. 1 is a structural view of a screw runout detecting support device of the prior art.
Fig. 2 is an external configuration view of the lead screw runout detecting apparatus of the present invention.
Fig. 3 is a vertical sectional view of the lead screw runout detecting apparatus of the present invention.
Fig. 4 is a horizontal sectional view of the lead screw runout detecting apparatus of the present invention.
Fig. 5 is a diagram showing a state of use of the lead screw runout detecting apparatus of the present invention.
The technical scheme of the utility model is described in detail in the following with reference to the accompanying drawings.
Detailed Description
As shown in fig. 2 to 4, the lead screw runout detecting and supporting device of the present invention includes a base 10, a first supporting seat 20, a second supporting seat 30 and an adjusting mechanism 40, wherein the first supporting seat 20 is fixed on the base 10, the second supporting seat 30 can slide along the base 10, and the adjusting mechanism 40 is used for limiting the movement of the second supporting seat 30.
The base 10 is a hollow structure, and an opening is formed on a top plate of the base, so that a sliding groove 11 is formed.
The first support seat 20 comprises a first base 21 arranged on the base 10 and a first support frame 22, one end of the first support frame 22 is inserted on the first base 21, and the other end of the first support frame 22 is provided with the support salient point a. The first base 21 and the first support frame 22 are detachable, so that the first support frame 22 with corresponding specifications can be replaced according to lead screws with different specifications. In this embodiment, the first support frame 22 includes a cylinder and a cone, a bottom surface of the cone is connected to an end surface of the cylinder, and one end of the cylinder is inserted into the first base 21 and fixed by a screw; the supporting salient points A are spherical and are arranged at the top end of the cone.
The second support seat 30 includes a second base 31 and a second support frame 32, the second base 31 is disposed on the sliding chute 11, one end of the second support frame 32 is inserted into the second base 31, and the other end of the second support frame 32 is provided with the support protrusion a. The second base 31 and the second support frame 32 are detachable, so that the second support frame 32 with corresponding specifications can be replaced according to lead screws with different specifications. The positions of the supporting salient points A on the first supporting seat 20 and the second supporting seat 30 are opposite, and the supporting salient points A can be embedded into a groove of a lead screw to be detected so as to support the lead screw. The second base 31 can slide along the sliding groove 11, so as to adjust the distance between the first support seat 20 and the second support seat 30, so as to adapt to lead screws with different specifications. In this embodiment, the second supporting frame 32 includes a column and a cone, a bottom surface of the cone is connected to an end surface of the column, and one end of the column is inserted into the second base 31 and fixed by a screw; the supporting salient points A are spherical and are arranged at the top end of the cone.
The adjusting mechanism 40 comprises a sliding block 41 and a locking bolt 42; the sliding block 41 is disposed in the sliding slot 11 and directly faces the second support seat 30, and the locking bolt 42 passes through the sliding block 41 and the second support seat 30 and can lock the second support seat 30 and the sliding block 41.
In addition, the adjusting mechanism 40 further comprises an elastic sheet 43 and a positioning strip 431; a plurality of positioning concave positions 111 which are distributed in parallel with the direction of the sliding chute 11 are further arranged on the inner wall of the sliding chute 11, and the positions and the intervals of the positioning concave positions 111 are set according to the common specification of a screw rod; the fixed end of the positioning bar 431 is fixed on the sliding block 41 through the spring sheet 43, and the spring sheet 43 generates an elastic force which enables the free end of the positioning bar 431 to be abutted against the positioning concave 111; a scale pointer (not shown) is arranged on the second support seat 31, and a scale mark (not shown) corresponding to the positioning concave 111 is arranged at a position on the base 10 adjacent to the scale pointer, so as to quickly adjust the distance between the first support seat 20 and the second support seat 30.
As shown in fig. 5, when measuring the lead screw runout, two lead screw runout detection supporting devices of the present invention are oppositely arranged on the working table, the locking bolt 42 is unscrewed, the second base 31 is adjusted to make the specification corresponding to the mark point pointed by the indicating point consistent with the specification of the lead screw 50 to be measured, and the locking bolt 42 is tightened after the adjustment is completed; then erecting the lead screw 50 to be tested on two lead screw bounce detection supporting devices, so that the supporting salient points A are all sunk into the groove of the lead screw 50; finally, the lead screw 50 is rotated, and simultaneously, the indication meter is used for measuring the jumping amplitude of the two ends, the middle part and the like of the lead screw 50 in the rotating process.
Compared with the prior art, the lead screw bounce detection method has the advantages that the inner surface of the groove of the lead screw is used as the support through the support salient points A, the inner surface of the groove is used as the reference surface to carry out lead screw bounce detection, and detected data are more accurate; furthermore, the base 10 of the utility model is provided with the chute 11, and the second supporting seat 30 is arranged on the chute 11, the second supporting seat 30 can slide along the chute 11, so that the distance between the first supporting seat 20 and the second supporting seat 30 can be adjusted to adapt to the measurement of lead screws with different diameters; furthermore, the utility model is also provided with a locking mechanism 40 for locking the second supporting seat 30, so as to prevent the second supporting seat 30 from deviating in the measuring process and ensure the accuracy of the measuring result; furthermore, a detachable structure is arranged between the support frame and the base, so that the support frame with the corresponding specification can be replaced according to the width of the groove of the lead screw.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a lead screw detection strutting arrangement that beats which characterized in that: the device comprises a base, a first supporting seat and a second supporting seat, wherein the first supporting seat and the second supporting seat are arranged on the base; the lead screw positioning device is characterized in that supporting salient points are respectively arranged on the first supporting seat and the second supporting seat, the positions of the supporting salient points on the first supporting seat and the second supporting seat are opposite, and a groove of a lead screw to be detected can be embedded to support the lead screw.
2. The lead screw runout detection support device according to claim 1, characterized in that: the supporting salient points are spherical.
3. Lead screw runout detection support device according to claim 1 or 2, characterized in that: the upper surface of base is equipped with the spout, the second supporting seat is established on the spout and can follow its slip.
4. The lead screw runout detection support device according to claim 3, characterized in that: the adjusting mechanism comprises a sliding block and a locking bolt; the sliding block is arranged in the sliding groove and is right opposite to the second supporting seat, and the locking bolt penetrates through the sliding block and the second supporting seat and can enable the second supporting seat to be locked with the sliding block.
5. The lead screw runout detection support device according to claim 4, wherein: a plurality of positioning concave positions which are distributed in parallel with the direction of the sliding groove are arranged on the inner wall of the sliding groove of the base; the adjusting mechanism further comprises a positioning strip arranged on the sliding block, and the free end part of the positioning strip is abutted to the positioning concave position.
6. The lead screw runout detection support device according to claim 5, wherein: the adjusting mechanism is further provided with an elastic sheet, the fixed end part of the positioning strip is fixed on the sliding block through the elastic sheet, and the elastic sheet generates elastic force which enables the free end part of the positioning strip to be abutted against the positioning concave position.
7. Lead screw runout detection support device according to any of claims 4 to 6, characterized in that: the first support seat comprises a first base arranged on the base and a first support frame, one end of the first support frame is inserted on the first base, and the other end of the first support frame is provided with the support salient point.
8. Lead screw runout detection support device according to any of claims 4 to 6, characterized in that: the second supporting seat comprises a second base and a second supporting frame, the second base is arranged on the base, one end of the second supporting frame is inserted into the second base, and the other end of the second supporting frame is provided with the supporting salient points.
9. Lead screw runout detection support device according to any of claims 5 to 6, characterized in that: and a scale pointer is arranged on the second supporting seat, and a scale mark corresponding to the positioning concave position is arranged at a position adjacent to the scale pointer on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122959288.3U CN216869367U (en) | 2021-11-29 | 2021-11-29 | Lead screw runout detection supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122959288.3U CN216869367U (en) | 2021-11-29 | 2021-11-29 | Lead screw runout detection supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216869367U true CN216869367U (en) | 2022-07-01 |
Family
ID=82128376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122959288.3U Active CN216869367U (en) | 2021-11-29 | 2021-11-29 | Lead screw runout detection supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216869367U (en) |
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2021
- 2021-11-29 CN CN202122959288.3U patent/CN216869367U/en active Active
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