CN220806400U - Ball screw pair nut processing location frock - Google Patents
Ball screw pair nut processing location frock Download PDFInfo
- Publication number
- CN220806400U CN220806400U CN202322657242.5U CN202322657242U CN220806400U CN 220806400 U CN220806400 U CN 220806400U CN 202322657242 U CN202322657242 U CN 202322657242U CN 220806400 U CN220806400 U CN 220806400U
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- head
- ball screw
- screw pair
- nut
- measuring head
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- 238000003754 machining Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to a ball screw pair nut processing and positioning tool which comprises a fixed frame, a pressure head and a measuring head, wherein the pressure head is connected onto the fixed frame in a sliding manner, the measuring head is fixedly arranged on the fixed frame, the pressure head and the measuring head are oppositely arranged on the same straight line, and a span is formed between the pressure head and the measuring head; the end part of the measuring head is provided with a ball head matched with a thread raceway of a ball screw pair nut; the fixing frame is arranged on the side wall of the ball screw pair nut in a straddling manner, one end provided with a measuring head stretches into the ball screw pair nut, the measuring head is connected in the threaded rollaway nest in a sliding manner, and the pressure head is propped against the outer wall of the ball screw pair nut; the invention takes the thread roller path as the reference for positioning, can rapidly position the position corresponding to the inner roller path of the nut on the outer circumferential surface of the nut, and improves the positioning efficiency and the accuracy.
Description
Technical Field
The invention relates to a processing and positioning tool for a ball screw pair nut, and belongs to the technical field of ball screw pair nut processing.
Background
The nut structure of the ball screw pair comprises a threaded inner raceway and a plurality of graphic elements in the circumferential direction of the outer diameter of the threaded inner raceway, such as a key groove, a mounting hole, an oil hole and the like; the position relation of the graphic primitive is often related to the rollaway nest, for example, the oil hole needs to be communicated with the pressing top of the rollaway nest to accurately lubricate the ball; therefore, the phase relation between the oil hole and the roller path needs to be confirmed by repeated tool setting in the machining process, and time and labor are wasted.
Disclosure of Invention
The invention provides a ball screw pair nut processing and positioning tool for positioning a raceway position on the outer wall of a ball screw pair nut, aiming at solving the problems in the prior art.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the ball screw pair nut processing and positioning tool comprises a fixing frame, a pressing head and a measuring head, wherein the pressing head is connected onto the fixing frame in a sliding mode, the measuring head is fixedly arranged on the fixing frame, the pressing head and the measuring head are oppositely arranged on the same straight line, and a span is formed between the pressing head and the measuring head; the end part of the measuring head is provided with a ball head matched with a thread raceway of a ball screw pair nut;
The fixing frame is arranged on the side wall of the ball screw pair nut in a straddling mode, one end, provided with a measuring head, of the fixing frame stretches into the ball screw pair nut, the measuring head is connected in the threaded roller path in a sliding mode, and the pressure head abuts against the outer wall of the ball screw pair nut.
The technical scheme is further designed as follows: the fixing frame is provided with a slide hole at the position corresponding to the pressure head, a notch communicated with the slide hole is arranged at the position corresponding to the middle part of the slide hole, an adjusting nut is arranged in the notch, and the outer wall of the pressure head is provided with an external thread and is in threaded connection with the adjusting nut through the external thread.
The fixing frame is provided with a locking screw hole communicated with the sliding hole, a locking screw is screwed in the locking screw hole, and the outer wall of the pressure head is provided with a sliding groove along the length direction of the pressure head; the end part of the locking screw extends into the chute and is in sliding connection with the chute, the locking screw is screwed, and the end part of the locking screw is tightly abutted against the inner wall of the chute.
The sliding holes are formed in the two ends of the pressure head, and the width of the notch is larger than the thickness of the adjusting nut.
The fixing frame is provided with a mounting screw hole at a position corresponding to the measuring head, and an external thread is arranged on the outer wall of one end of the measuring head, which is far away from the ball head, and is in threaded connection with the mounting screw hole through the external thread.
The ball screw assembly is characterized in that a locating plate with the setting direction perpendicular to the setting direction of the measuring head is arranged at the position, close to the ball head, of the measuring head, and one side, facing the ball head, of the locating plate is a cambered surface matched with the inner wall of the ball screw assembly nut.
The upper part of the fixing frame is provided with a hollow structure.
The invention has the beneficial effects that:
According to the invention, the measuring head is arranged in the ball screw pair nut, the ball head slides in the thread raceway, and then the pressure head is adjusted to move towards the direction close to the ball screw pair nut until the pressure head is propped against the outer wall of the ball screw pair nut. The invention takes the thread roller path as the reference for positioning, can rapidly position the position corresponding to the inner roller path of the nut on the outer circumference of the nut, and improves the positioning efficiency and the accuracy.
The positioning plate is arranged at the position, close to the ball head, of the measuring head, and the positioning plate is attached to the inner wall of the ball screw pair nut when the ball screw pair nut is used, so that the straight line of the measuring head and the pressure head is always perpendicular to the axial direction of the ball screw pair nut, and the positioning is more accurate.
Drawings
FIG. 1 is a schematic structural diagram of a positioning tool according to an embodiment of the present invention;
FIG. 2 is a schematic view of the fixing frame in FIG. 1;
FIG. 3 is a schematic view of the press head of FIG. 1;
FIG. 4 is a schematic view of the gauge head of FIG. 1;
FIG. 5 is a schematic view of the usage state of FIG. 1;
FIG. 6 is a cross-sectional view of FIG. 2;
Fig. 7 is a sectional view of a use state of a positioning tool according to a second embodiment of the present invention.
In the figure: the device comprises a 1-fixing frame, a 11-hollow structure, a 12-sliding hole, a 13-mounting screw hole, a 14-locking screw hole, a 15-notch, a 2-pressure head, a 21-pressure head center, a 22-chute, a 3-adjusting nut, a 4-locking screw, a 5-measuring head, a 51-ball head, a 52-threaded part, a 53-positioning plate, a 6-nut to be measured and a 7-positioning line.
Description of the embodiments
The invention will now be described in detail with reference to the accompanying drawings and specific examples.
Example 1
As shown in fig. 1, a processing and positioning tool for a ball screw pair nut in this embodiment is used for positioning a position corresponding to a thread raceway on an outer wall of a ball screw pair nut to be tested.
The positioning tool comprises a fixing frame 1, a pressure head 2 which is connected onto the fixing frame 1 in a sliding manner and a measuring head 5 which is fixedly arranged on the fixing frame 1, wherein a crossing part is arranged in the middle of the fixing frame 1, the pressure head 2 and the measuring head 5 are respectively arranged at two ends of the crossing part, and the pressure head 2 and the measuring head 5 are oppositely arranged on the same straight line.
Referring to fig. 2, the upper portion of the fixing frame 1 is provided with a hollow structure 11. The fixing frame 1 is provided with a slide hole 12 at a position corresponding to the pressure head 2, a notch 15 communicated with the slide hole 12 is arranged at a position corresponding to the middle part of the slide hole 12, an adjusting nut 3 is arranged in the notch 15, and the outer wall of the pressure head 2 is provided with external threads and is in threaded connection with the adjusting nut 3 through the external threads as shown in the figure 3; the fixing frame 1 is also provided with a locking screw hole 14 communicated with the sliding hole 12, a locking screw 4 is screwed in the locking screw hole 14, and the outer wall of the pressure head 2 is provided with a sliding groove 22 along the length direction of the pressure head; the end of the locking screw 4 extends into the chute 22 and is in sliding connection with the chute 22,
When the adjusting nut 3 is rotated, the end of the locking screw 4 stretches into the sliding groove 22 to form a limiting structure, so that the pressure head 2 is restrained by the locking screw 4 and cannot rotate, and can only reciprocate along the length direction of the sliding hole 12.
Referring to fig. 4, the fixing frame 1 is provided with a mounting screw hole 13 at a position corresponding to the measuring head 5, one end of the measuring head 5 is provided with a ball head 51 matched with a thread raceway of a nut to be measured, and one end far away from the ball head is provided with a thread part 52 provided with external threads and is screwed and fixed on the fixing frame 1 through the thread part and the mounting screw hole.
As shown in fig. 5 and 6, when the positioning tool of the present embodiment is used, a lathe tool or other scribing tool may be used in advance to draw the positioning line 7 on the circumference of the nut 6 to be measured; the straddling part of the fixing frame 1 is straddled on the side wall of the nut 6 to be measured, one end provided with the measuring head 5 extends into the nut 6 to be measured, the ball head 51 is embedded into the threaded raceway, the adjusting nut 3 is rotated, the pressure head 2 moves towards the direction close to the nut 6 to be measured until the pressure head center 21 at one end of the pressure head 2 is close to the outer wall of the nut 6 to be measured; then the positioning tool is rotated along the circumferential direction of the nut 5 to be measured, so that the ball head 51 slides along the thread raceway and continuously slides into the nut 5 to be measured until the pressure head center 21 contacts the positioning line 7, and then the adjusting nut 3 is stirred, so that the pressure head center 21 is tightly abutted against the outer circumferential surface of the nut 6 to be measured. At this time, the locking screw 4 can be selectively screwed, so that the end of the locking screw 4 is tightly abutted against the inner wall of the chute 22, and the pressure head 2 is locked, so that the positions of the pressure head 2 and the slide hole 12 are relatively fixed.
Because the sliding holes are formed in the two ends of the pressure head 2, the width of the notch 15 is slightly larger than the thickness of the adjusting nut 3, the adjusting nut 3 can move in the notch 15 along the moving direction of the pressure head 2 by a small margin, after the top 21 of the pressure head abuts against the outer circumferential surface of the nut 6 to be tested, the locking screw 4 can be not screwed, a tool is used for knocking the end, far away from the top of the pressure head, of the pressure head 2, positioning points are formed in the outer circumference of the nut 6 to be tested, the positioning points are target positions, the oil holes can be just opposite to the rollaway nest if the oil holes are processed from the positioning points, the positioning tools can be detached as relative positioning of other processing positions. Therefore, the screw thread roller path is used as a reference for positioning, and the position corresponding to the inner roller path of the nut is rapidly and accurately positioned on the outer circumferential surface of the nut to be detected.
Example two
The positioning tool of the embodiment is basically the same as that of the first embodiment, and the difference is that: the measuring head 5 is provided with a locating plate 53 with a setting direction perpendicular to the setting direction of the measuring head 5 near the ball head 51, and one side of the locating plate 53 facing the ball head is a cambered surface matched with the inner wall of the ball screw pair nut.
When the ball head 51 is embedded into a threaded pipeline in use, the positioning plate 53 is attached to the inner wall of the nut 6 to be measured, so that the ball head 51 is enabled to slide along the threaded raceway, and the positioning plate 53 also slides along the inner wall of the nut 6 to be measured at the moment, so that the positioning tool cannot incline, and the positioning plate 53 is perpendicular to the setting direction of the measuring head 5, so that the straight line of the measuring head 5 and the pressure head 2 is always perpendicular to the axial direction of the ball screw pair nut, and the positioning is more accurate.
The technical scheme of the invention is not limited to the embodiments, and all technical schemes obtained by adopting equivalent substitution modes fall within the scope of the invention.
Claims (7)
1. The utility model provides a ball screw pair nut processing location frock, includes the mount, its characterized in that: the device also comprises a pressure head and a measuring head, wherein the pressure head is connected to the fixing frame in a sliding way, the measuring head is fixedly arranged on the fixing frame, the pressure head and the measuring head are oppositely arranged on the same straight line, and a span is formed between the pressure head and the measuring head; the end part of the measuring head is provided with a ball head matched with a thread raceway of a ball screw pair nut;
The fixing frame is arranged on the side wall of the ball screw pair nut in a straddling mode, one end, provided with a measuring head, of the fixing frame stretches into the ball screw pair nut, the measuring head is connected in the threaded roller path in a sliding mode, and the pressure head abuts against the outer wall of the ball screw pair nut.
2. The ball screw pair nut machining positioning tool according to claim 1, wherein: the fixing frame is provided with a slide hole at the position corresponding to the pressure head, a notch communicated with the slide hole is arranged at the position corresponding to the middle part of the slide hole, an adjusting nut is arranged in the notch, and the outer wall of the pressure head is provided with an external thread and is in threaded connection with the adjusting nut through the external thread.
3. The ball screw pair nut machining positioning tool according to claim 2, wherein: the fixing frame is provided with a locking screw hole communicated with the sliding hole, a locking screw is screwed in the locking screw hole, and the outer wall of the pressure head is provided with a sliding groove along the length direction of the pressure head; the end part of the locking screw extends into the chute and is in sliding connection with the chute, the locking screw is screwed, and the end part of the locking screw is tightly abutted against the inner wall of the chute.
4. The ball screw pair nut machining positioning tool according to claim 3, wherein: the sliding holes are formed in the two ends of the pressure head, and the width of the notch is larger than the thickness of the adjusting nut.
5. The ball screw pair nut machining positioning tool according to claim 1, wherein: the fixing frame is provided with a mounting screw hole at a position corresponding to the measuring head, and an external thread is arranged on the outer wall of one end of the measuring head, which is far away from the ball head, and is in threaded connection with the mounting screw hole through the external thread.
6. The ball screw pair nut machining positioning tool according to claim 5, wherein: the ball screw assembly is characterized in that a locating plate with the setting direction perpendicular to the setting direction of the measuring head is arranged at the position, close to the ball head, of the measuring head, and one side, facing the ball head, of the locating plate is a cambered surface matched with the inner wall of the ball screw assembly nut.
7. The ball screw pair nut machining positioning tool according to claim 1, wherein: the upper part of the fixing frame is provided with a hollow structure.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220806400U true CN220806400U (en) | 2024-04-19 |
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