CN216205902U - Ball screw raceway contact point diameter detection device - Google Patents
Ball screw raceway contact point diameter detection device Download PDFInfo
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- CN216205902U CN216205902U CN202122361151.8U CN202122361151U CN216205902U CN 216205902 U CN216205902 U CN 216205902U CN 202122361151 U CN202122361151 U CN 202122361151U CN 216205902 U CN216205902 U CN 216205902U
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Abstract
The utility model provides a ball screw raceway contact point diameter detection device which comprises a first detection block, a second detection block and an outer micrometer, wherein two measurement ends of the outer micrometer are respectively provided with a connecting hole along the axial direction, one end of the first detection block and one end of the second detection block are connecting ends used for being connected with the connecting holes, the end surface of the other end of the first detection block and the second detection block is provided with a convex circular arc which is perpendicular to the axial direction of the connecting holes, the diameter of the circular arc is the same as that of a measuring rod, the first detection block is provided with a convex circular arc, the second detection block is provided with two convex circular arcs in parallel, and the distance between the two convex circular arcs is the same as the screw pitch of a screw rod. The problems that the existing detection process is complex, the detection efficiency is low, the detection numerical value is possibly inaccurate, the production efficiency is not high, the quality fluctuation range is large and the like are solved. Belongs to the field of ball screw pair manufacturing and detecting.
Description
Technical Field
The utility model relates to a ball screw raceway contact point diameter detection device, and belongs to the field of manufacturing and detection of ball screw pairs.
Background
The ball screw pair mainly comprises four parts of a screw rod, a nut, a reverser and a steel ball, the axial clearance is one of important indexes of the precision of the screw pair, and the axial clearance is comprehensively determined by the diameter of a contact point of a screw rod raceway, the diameter of a contact point of a nut raceway and the diameter of a steel ball. At present, the diameter of the contact point of the lead screw roller path is detected by an indirect measurement method, namely, a group of three standard measuring rods with the same size are selected according to the size of the arc of the lead screw roller path, two measuring rods are placed in adjacent roller paths on one side of the longitudinal section of the detected lead screw, one measuring rod is placed in the roller path on the other side, the distance between the diameters of the measuring rods on two sides or the distance between the diameters of the measuring rods on two sides is measured by an equivalent tool of a micrometer, and then the actual value of the diameter of the contact point of the lead screw roller path is obtained by calculation. The disadvantages are that: the testing process is complicated, detection efficiency is low, if the angular position of measuring stick in the screw type arc inslot is not adjusted well, will cause and detect the numerical value inaccuracy, and the size is unstable, finally leads to the ball screw pair to make and can only rely on the match mode to guarantee the axle clearance assembling, and production efficiency is not high, and the quality fluctuation range is big.
SUMMERY OF THE UTILITY MODEL
The utility model provides a comprehensive detection device which is convenient to operate and accurate in measurement, and can quickly and accurately complete detection of the diameter of a lead screw raceway contact point of a ball screw pair.
In order to achieve the purpose, the ball screw raceway contact point diameter detection device comprises a first detection block, a second detection block and an outer micrometer, wherein connecting holes are formed in two measuring ends of the outer micrometer along the axial direction, one end of the first detection block and one end of the second detection block are connecting ends used for being connected with the connecting holes, the end face of the other end of the first detection block is provided with a convex circular arc perpendicular to the axial direction of the connecting holes, the diameter of the circular arc is the same as that of a measuring rod, a convex circular arc is arranged on the first detection block, two convex circular arcs are arranged on the second detection block in parallel, and the distance between the two convex circular arcs is the same as the screw pitch of a screw rod.
In the detection device, the first detection block and the second detection block are of pin-like structures, the other ends of the first detection block and the second detection block are provided with shaft shoulders, and the convex circular arcs are arranged on the outer end faces of the first detection block and the second detection block;
in the detection device, the cross section of the convex arc is more than or equal to a semicircle;
in the detection device, the connecting holes on the two measuring ends of the outside micrometer are coaxially formed, and the protruding circular arcs on the first detection block 1 and the second detection block are arranged in the middle of the end face of the detection block.
Compared with the prior art, when the measuring device is used for measuring, the first detecting block is arranged at one end of the outside micrometer, the second detecting block is arranged at the other end of the outside micrometer, the protruding arcs of the detecting blocks at the two ends are embedded into the roller paths at the two sides of the screw rod, the micrometer is screwed to read, the detecting steps are simple, the efficiency is high, the problems of inaccurate detected values, unstable sizes and the like can be effectively avoided as long as the size of the detecting block and the opening and mounting accuracy on the outside micrometer are well controlled, the measuring accuracy is effectively guaranteed, the stability of the measuring quality is improved, and the measuring device is suitable for popularization and application.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic structural view of an outside micrometer after being perforated;
FIG. 3 is a schematic structural diagram of a first detection block;
fig. 4 is a schematic structural diagram of a second detection block.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
Examples
Referring to fig. 1 to 4, the embodiment provides a ball screw raceway contact point diameter detection device, which includes a first detection block 1, a second detection block 2 and an outside micrometer 3, wherein two measurement ends of the outside micrometer 3 are both provided with a connection hole 31 along an axial direction, the first detection block 1 and the second detection block 2 are of a pin-like structure, one end of the first detection block 1 and the second detection block 2 is a connection end for connecting with the connection hole 31, the other end of the first detection block 1 and the second detection block 2 is provided with a shaft shoulder, an end face of the other end is provided with a convex circular arc perpendicular to the axial direction of the connection hole 31, a cross section of the convex circular arc is more than or equal to a half circle, a circular arc diameter is the same as a measuring rod diameter, the convex circular arcs are both arranged on outer end faces of the first detection block 1 and the second detection block 2, the first detection block 1 is provided with a convex circular arc, the second detection block 2 is provided with two convex circular arcs in parallel, and the distance between two convex arcs is the same as the pitch of the screw rod 4, the connecting holes 31 on two measuring ends of the outside micrometer 3 are coaxially arranged, and the convex arcs on the first detecting block 1 and the second detecting block 2 are both arranged in the middle of the end face of the detecting block.
The diameter detection device of the contact point of the screw rod raceway takes the convex circular arc of the detection block as a detection reference, so that the premise of using the diameter detection device is that the circular arc radius, the excircle, the shaft shoulder, the screw pitch and the hole type micrometer of the detection block have higher precision and consistency.
During measurement, the first detection block is arranged at one end of the outside micrometer, the second detection block 2 is arranged at the other end of the outside micrometer, the convex arcs of the detection blocks at the two ends are embedded into the rolling ways at the two sides of the screw rod, and the micrometer is screwed to read.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a ball screw raceway contact point diameter detection device which characterized in that: including first detection piece (1), second detection piece (2) and outside micrometer (3), connecting hole (31) have all been seted up along the axial to two measuring ends of outside micrometer (3), and first detection piece (1) and the one end that the second detected piece (2) are the link that is used for being connected with connecting hole (31), and the terminal surface of the other end has the protruding circular arc that perpendicular to connecting hole (31) axial set up, and the circular arc diameter is the same with the gauge rod diameter, set up a protruding circular arc on first detection piece (1), parallel arrangement has two protruding circular arcs on the second detection piece (2), and the distance between two protruding circular arcs is the same with the lead screw pitch.
2. The ball screw raceway contact point diameter detection device according to claim 1, characterized in that: first detection piece (1) and second detection piece (2) are type pin structure, and the other end that first detection piece (1) and second detected piece (2) has the shaft shoulder, protruding circular arc all sets up on the outer terminal surface of first detection piece (1) and second detection piece (2).
3. The ball screw raceway contact point diameter detection device according to claim 1, characterized in that: the cross section of the convex arc is more than or equal to a semicircle.
4. The ball screw raceway contact point diameter detection device according to claim 1, characterized in that: connecting holes (31) on two measuring ends of the outside micrometer (3) are coaxially formed, and protruding circular arcs on the first detecting block (1) and the second detecting block (2) are arranged in the middle of the end face of the detecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361151.8U CN216205902U (en) | 2021-09-28 | 2021-09-28 | Ball screw raceway contact point diameter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361151.8U CN216205902U (en) | 2021-09-28 | 2021-09-28 | Ball screw raceway contact point diameter detection device |
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| Publication Number | Publication Date |
|---|---|
| CN216205902U true CN216205902U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122361151.8U Active CN216205902U (en) | 2021-09-28 | 2021-09-28 | Ball screw raceway contact point diameter detection device |
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| CN (1) | CN216205902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118032343A (en) * | 2024-04-12 | 2024-05-14 | 常州富丽康精密机械有限公司 | Raceway precision synchronous detection equipment based on multi-lead screw continuous feeding |
-
2021
- 2021-09-28 CN CN202122361151.8U patent/CN216205902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118032343A (en) * | 2024-04-12 | 2024-05-14 | 常州富丽康精密机械有限公司 | Raceway precision synchronous detection equipment based on multi-lead screw continuous feeding |
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