阅读说明：本技术 可控杆或轴周向转动和轴向移动的转角定位装置 (Angle positioning device capable of controlling circumferential rotation and axial movement of rod or shaft ) 是由 丰宗强 姚培锋 韩伟达 于 2021-07-21 设计创作，主要内容包括：本发明涉及一种可控杆或轴周向转动和轴向移动的转角定位装置,其包括回转定位体、外圈按压筒、定位壳安装盖、第一复位弹簧、旋转阶梯筒、控轴移动筒、上壳体、弹簧支架、下壳体和第二复位弹簧,所述上壳体上端与定位壳安装盖固定相连,其下端与下壳体上端固定相连,所述回转定位体经外圈按压筒与定位壳安装盖内孔同轴间隙配合,并经第一复位弹簧与控轴移动筒上端接触,所述旋转阶梯筒上端与外圈按压筒下端接触,其下端与控轴移动筒上部接触,所述控轴移动筒中部经弹簧支架和第二复位弹簧与下壳体内壁底端接触,其底端与所控制的杆或轴相连。本发明操作简单、结构紧凑、运行稳定,杆或轴的轴向距离和周向角度调节准确且可周向和轴向定位。(The invention relates to a rotary angle positioning device capable of controlling circumferential rotation and axial movement of a rod or a shaft, which comprises a rotary positioning body, an outer ring pressing cylinder, a positioning shell mounting cover, a first return spring, a rotary stepped cylinder, a control shaft moving cylinder, an upper shell, a spring support, a lower shell and a second return spring, wherein the upper end of the upper shell is fixedly connected with the positioning shell mounting cover, the lower end of the upper shell is fixedly connected with the upper end of the lower shell, the rotary positioning body is in coaxial clearance fit with an inner hole of the positioning shell mounting cover through the outer ring pressing cylinder and is in contact with the upper end of the control shaft moving cylinder through the first return spring, the upper end of the rotary stepped cylinder is in contact with the lower end of the outer ring pressing cylinder, the lower end of the rotary stepped cylinder is in contact with the upper part of the control shaft moving cylinder, the middle part of the control shaft moving cylinder is in contact with the bottom end of the inner wall of the lower shell through the spring support and the second return spring, and the bottom end of the control shaft moving cylinder is connected with the rod or the shaft to be controlled. The invention has simple operation, compact structure, stable operation, accurate adjustment of the axial distance and the circumferential angle of the rod or the shaft and circumferential and axial positioning.)

1. A rotary angle positioning device capable of controlling circumferential rotation and axial movement of a rod or a shaft is characterized by comprising a rotary positioning body, an outer ring pressing barrel, a positioning shell mounting cover, a first reset spring, a rotary stepped barrel, a control shaft moving barrel, an upper shell, a spring support, a lower shell and a second reset spring, wherein the upper end of the upper shell is fixedly connected with the positioning shell mounting cover, the lower end of the upper shell is fixedly connected with the upper end of the lower shell, the rotary positioning body is in coaxial clearance fit with an inner hole of the positioning shell mounting cover through the outer ring pressing barrel and is in contact with the upper end of the control shaft moving barrel through the first reset spring, the upper end of the rotary stepped barrel is in contact with the lower end of the outer ring pressing barrel, the lower end of the rotary stepped barrel is in contact with the upper part of the control shaft moving barrel, the middle part of the control shaft moving barrel is in contact with the bottom end of the inner wall of the lower shell through the spring support and the second reset spring, and the bottom end of the rotary stepped barrel is connected with the rod or the shaft to be controlled,

the rotary positioning body comprises an outer pressing column, a semi-through cylinder and a first fixed sliding block, the outer pressing column is in clearance fit with an inner hole of the outer ring pressing cylinder, the semi-through cylinder is connected to the lower end of the outer pressing column, pressing stepped tooth columns are distributed at the bottom end of the semi-through cylinder, and the first fixed sliding block is fixedly connected to the upper end of the semi-through cylinder and is in sliding connection with a slide way on the wall of the rotary stepped cylinder;

the outer ring pressing cylinder comprises an outer ring pressing cylinder body, a second fixed sliding block and a first tooth column, the second fixed sliding block is fixedly connected to the upper half end of the cylindrical surface of the outer ring pressing cylinder body and is in sliding connection with the inner wall slide way of the positioning shell mounting cover, and the first tooth column is fixedly connected to the lower half end of the cylindrical surface of the outer ring pressing cylinder body and is in meshed connection with the tooth column of the rotary stepped cylinder;

the bottom end of the positioning shell mounting cover is provided with a second toothed column, the middle of the positioning shell mounting cover is provided with a through hole, two ends of the positioning shell mounting cover are provided with two end face blind holes of which the axes are parallel to the axes of the positioning shell mounting cover, and a connecting line of the centers of the two end face blind holes is provided with two inner wall slideways which are relatively distributed on the inner wall of the through hole;

the middle of the rotary stepped cylinder is provided with a cylinder hole, the upper end of the rotary stepped cylinder is provided with a third tooth column, a small groove is arranged between every two adjacent third tooth columns, the upper end of the rotary stepped cylinder is provided with an upper wall slideway, and the bottom end of the rotary stepped cylinder is provided with rotary stepped tooth columns which are distributed according to a certain circumferential angle and axial distance;

the outer wall of the control shaft moving cylinder, which is close to the top end, is provided with a fixed compression block, and the lower end of the control shaft moving cylinder is connected with a rod or a shaft.

2. A rotary angle positioning device capable of controlling the circumferential rotation and axial movement of a rod or shaft according to claim 1, wherein the upper end surface of the lower shell is provided with two symmetrical blind holes, and the lower end of the inner hole is provided with a concave hole and is in contact with the lower end of the second return spring; the middle of the upper shell is provided with a shell hole, the upper end surface of the upper shell is provided with two symmetrical upper blind holes, the lower end surface of the upper shell is provided with two symmetrical lower blind holes, the upper end surface of the upper shell is connected with the end surface blind holes of the positioning shell mounting cover through the upper blind holes, and the lower end surface of the upper shell is connected with the blind holes of the upper end surface of the lower shell through the lower blind holes.

3. A device for angular positioning of controllable rod or shaft with circumferential rotation and axial movement according to claim 1, wherein the first fixed sliding block is connected with the sliding track on the wall in a sliding manner, while ensuring that the rotary positioning body moves downwards along the axial direction by a corresponding distance, so that the tooth tip of the pressing stepped tooth column contacts the middle part of the upper end inclined plane of the fixed pressed block; the second fixed sliding block is connected with the inner wall slide in a sliding mode, and meanwhile the outer ring pressing barrel moves downwards along the axial direction by a corresponding distance, so that the tooth tip of the first tooth column is in contact with the middle of the inclined plane of the third tooth column.

4. A rotary angle positioning device capable of controlling circumferential rotation and axial movement of a rod or shaft according to claim 1, wherein the rotary positioning body, the outer ring pressing barrel, the positioning housing mounting cover, the first return spring, the rotary stepped barrel, the control shaft moving barrel, the upper housing, the spring support, the lower housing and the second return spring are coaxially arranged.

5. A rotary angle positioning device capable of controlling circumferential rotation and axial movement of a rod or shaft according to claim 1, wherein the first fixed sliding blocks are provided with two and 180 ° apart distribution, the second fixed sliding blocks are provided with two and 180 ° apart distribution, the first tooth posts are provided with 4 and uniformly distributed along the circumferential direction, the second tooth posts are provided with 8 teeth of the same size and uniformly distributed along the circumferential direction, the third tooth posts are provided with 8 teeth and uniformly distributed along the circumferential direction, and the sliding grooves are provided with 2 and 180 ° apart distribution.

6. A rotary angle positioning device capable of controlling circumferential rotation and axial movement of a rod or shaft according to claim 1, wherein the angle and direction of the inclined surface of the rotary stepped tooth column are the same as those of the upper end inclined surface of the fixed pressure receiving block, and the angle and direction of the inclined surface of the third tooth column are the same as those of the second tooth column.

7. A rotary angle positioning device capable of controlling the circumferential rotation and axial movement of a rod or shaft as claimed in claim 1, wherein the top end surface of the control shaft moving cylinder is a concave surface, and the bottom surface of the spring support is a concave surface and contacts with the upper end of the second return spring.

8. A rotary angular positioning device with both circumferential and axial movement of a controllable lever or shaft as claimed in claim 1, wherein said first and second return springs are identical in construction and said second return spring is larger in size.

9. A device according to claim 2, wherein the line joining the centres of the two upper blind holes forms an angle with the line joining the centres of the two lower blind holes.

Technical Field

The invention belongs to a corner positioning technology, and particularly relates to a corner positioning device capable of controlling circumferential rotation and axial movement of a rod or a shaft.

Background

In some mechanical structures, it is often necessary to control the axial movement and circumferential rotation of each rod or shaft, such rods or shafts are manually adjusted in actual circumferential and axial adjustment operations, the axial distance and circumferential angle of adjustment are uncertain, and the operation process is somewhat complicated and tedious. Therefore, it is necessary and desirable to design a rotational angle positioning device that can control the circumferential rotation and axial movement of a rod or shaft to achieve accurate adjustment of the axial distance and circumferential angle of the shaft.

Disclosure of Invention

In view of the above, the present invention provides a rotational angle positioning device capable of controlling the circumferential rotation and axial movement of a rod or a shaft, which comprises a rotary positioning body, an outer ring pressing barrel, a positioning shell mounting cover, a first reset spring, a rotary stepped barrel, a control shaft moving barrel, an upper shell, a spring bracket, a lower shell and a second reset spring, wherein the upper end of the upper shell is fixedly connected with the positioning shell mounting cover, the lower end of the rotary positioning body is fixedly connected with the upper end of the lower shell, the rotary positioning body is in coaxial clearance fit with an inner hole of the mounting cover of the positioning shell through an outer ring pressing cylinder, and is contacted with the upper end of the control shaft moving cylinder through a first return spring, the upper end of the rotary stepped cylinder is contacted with the lower end of the outer ring pressing cylinder, the lower end of the control shaft moving cylinder is contacted with the upper part of the control shaft moving cylinder, the middle part of the control shaft moving cylinder is contacted with the bottom end of the inner wall of the lower shell through a spring bracket and a second reset spring, and the bottom end of the control shaft moving cylinder is connected with a controlled rod or shaft. The invention has simple operation, compact structure, stable operation, accurate adjustment of the axial distance and the circumferential angle of the rod or the shaft and circumferential and axial positioning.

The invention provides a corner positioning device capable of controlling circumferential rotation and axial movement of a rod or a shaft, which comprises a rotary positioning body, an outer ring pressing cylinder, a positioning shell mounting cover, a first return spring, a rotary stepped cylinder, a control shaft moving cylinder, an upper shell, a spring support, a lower shell and a second return spring, wherein the upper end of the upper shell is fixedly connected with the positioning shell mounting cover, the lower end of the upper shell is fixedly connected with the upper end of the lower shell, the rotary positioning body is in coaxial clearance fit with an inner hole of the positioning shell mounting cover through the outer ring pressing cylinder and is in contact with the upper end of the control shaft moving cylinder through the first return spring, the upper end of the rotary stepped cylinder is in contact with the lower end of the outer ring pressing cylinder, the lower end of the rotary stepped cylinder is in contact with the upper part of the control shaft moving cylinder, the middle part of the control shaft moving cylinder is in contact with the bottom end of the inner wall of the lower shell through the spring support and the second return spring, and the, the rotary positioning body comprises an outer pressing column, a semi-through cylinder and a first fixed sliding block, the outer pressing column is in clearance fit with an inner hole of the outer ring pressing cylinder, the semi-through cylinder is connected to the lower end of the outer pressing column, pressing stepped tooth columns are distributed at the bottom end of the semi-through cylinder, and the first fixed sliding block is fixedly connected to the upper end of the semi-through cylinder and is in sliding connection with a slide way on the wall of the rotary stepped cylinder;

the outer ring pressing cylinder comprises an outer ring pressing cylinder body, a second fixed sliding block and a first tooth column, the second fixed sliding block is fixedly connected to the upper half end of the cylindrical surface of the outer ring pressing cylinder body and is in sliding connection with the inner wall slide way of the positioning shell mounting cover, and the first tooth column is fixedly connected to the lower half end of the cylindrical surface of the outer ring pressing cylinder body and is in meshed connection with the tooth column of the rotary stepped cylinder;

the bottom end of the positioning shell mounting cover is provided with a second toothed column, the middle of the positioning shell mounting cover is provided with a through hole, two ends of the positioning shell mounting cover are provided with two end face blind holes of which the axes are parallel to the axes of the positioning shell mounting cover, and a connecting line of the centers of the two end face blind holes is provided with two inner wall slideways which are relatively distributed on the inner wall of the through hole;

the middle of the rotary stepped cylinder is provided with a cylinder hole, the upper end of the rotary stepped cylinder is provided with a third tooth column, a small groove is arranged between every two adjacent third tooth columns, the upper end of the rotary stepped cylinder is provided with an upper wall slideway, and the bottom end of the rotary stepped cylinder is provided with rotary stepped tooth columns which are distributed according to a certain circumferential angle and axial distance;

the outer wall of the control shaft moving cylinder, which is close to the top end, is provided with a fixed compression block, and the lower end of the control shaft moving cylinder is connected with a rod or a shaft.

Furthermore, the upper end surface of the lower shell is provided with two symmetrical blind holes, and the lower end of the inner hole is provided with a concave hole and is in contact with the lower end of the second return spring; the middle of the upper shell is provided with a shell hole, the upper end surface of the upper shell is provided with two symmetrical upper blind holes, the lower end surface of the upper shell is provided with two symmetrical lower blind holes, the upper end surface of the upper shell is connected with the end surface blind holes of the positioning shell mounting cover through the upper blind holes, and the lower end surface of the upper shell is connected with the blind holes of the upper end surface of the lower shell through the lower blind holes.

Preferably, when the first fixed sliding block is in sliding connection with the upper sliding channel of the wall, the rotary positioning body is ensured to move downwards along the axial direction by a corresponding distance, so that the tooth tip of the pressing stepped tooth column is in contact with the middle part of the inclined plane at the upper end of the fixed pressed block; the second fixed sliding block is connected with the inner wall slide in a sliding mode, and meanwhile the outer ring pressing barrel moves downwards along the axial direction by a corresponding distance, so that the tooth tip of the first tooth column is in contact with the middle of the inclined plane of the third tooth column.

Preferably, the rotary positioning body, the outer ring pressing barrel, the positioning shell mounting cover, the first return spring, the rotary stepped barrel, the control shaft moving barrel, the upper shell, the spring support, the lower shell and the second return spring are coaxially arranged.

Preferably, the first fixed sliding block is provided with two and 180-degree distribution at intervals, the second fixed sliding block is provided with two and 180-degree distribution at intervals, the first tooth column is provided with 4 and evenly distributes along the circumferential direction, the second tooth column is provided with 8 of the same size and evenly distributes along the circumferential direction, the third tooth column is provided with 8 and evenly distributes along the circumferential direction, and the sliding chute is provided with 2 and 180-degree distribution at intervals.

Preferably, the angle and the direction of the inclined plane of the rotary stepped toothed column are the same as those of the inclined plane of the upper end of the fixed pressed block, and the angle and the direction of the inclined plane of the third toothed column are the same as those of the inclined plane of the second toothed column.

Preferably, the top end surface of the control shaft moving cylinder is a concave surface, and the bottom surface of the spring support is a concave surface and is in contact with the upper end of the second return spring.

Preferably, the first return spring and the second return spring have the same structure, and the second return spring has a larger size.

Preferably, a connecting line of the centers of the two upper blind holes and a connecting line of the centers of the two lower blind holes form a certain included angle.

The invention has the characteristics and beneficial effects that:

1. the rotary angle positioning device capable of controlling the circumferential rotation and the axial movement of the rod or the shaft is simple and rapid to operate, compact in structure and stable in operation, and the axial distance and the circumferential angle of the rod or the shaft are accurately adjusted and can be positioned circumferentially and axially.

2. The rotary angle positioning device capable of controlling the circumferential rotation and the axial movement of the rod or the shaft can realize the periodic circumferential rotation and the axial movement of the shaft by means of the specific tooth column design, and avoid the influence on the output effect caused by the operation error caused by manual adjustment.

Drawings

FIG. 1 is a schematic three-dimensional perspective view of a rotational angle positioning device for controlling the circumferential rotation and axial movement of a rod or shaft according to the present invention;

FIG. 2 is a perspective view of the rotary positioning body of the present invention;

FIG. 3 is a perspective view of the outer ring pressing cylinder of the present invention;

FIG. 4 is a perspective view of a positioning housing mounting cover of the present invention;

FIG. 5 is a perspective view of a rotating stepped drum according to the present invention;

FIG. 6 is a perspective view of the control shaft moving cylinder of the present invention;

FIG. 7 is a perspective view of the upper housing of the present invention;

FIG. 8 is a perspective view of the spring support of the present invention;

fig. 9 is a perspective view of the lower housing of the present invention.

In the figure:

1-a rotary positioning body; 2-outer ring pressing cylinder; 3-positioning the shell mounting cover; 4-a first return spring; 5-rotating the stepped cylinder; 6-control the shaft to move the cylinder; 7-an upper shell; 8-a spring support; 9-a lower shell; 10-a second return spring; 11-external compression column; 12-a first fixed slider; 13-a semi-through cylinder; 21-a second fixed slide; 22-outer ring pressing cylinder body; 23-a first tooth post; 31-inner wall slide; 32-a via hole; 33-end face blind hole; 34-second tooth post; 51-third tooth column; 52-cylinder hole; 53-wall ramps; 54-rotating stepped tooth column; 61-upper end inclined plane; 62-fixing the pressed block; 63-a rod or shaft; 71-shell pores; 72-upper blind hole; 73-lower blind hole; 81-axle hole; 82-concave surface; 91-concave hole; 92-blind hole.

Detailed Description

The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.

The invention provides a corner positioning device capable of controlling the circumferential rotation and axial movement of a rod or a shaft, as shown in figure 1, which comprises a rotary positioning body 1, an outer ring pressing cylinder 2, a positioning shell mounting cover 3, a first reset spring 4, a rotary stepped cylinder 5, a control shaft moving cylinder 6, an upper shell 7, a spring support 8, a lower shell 9 and a second reset spring 10, wherein the upper end of the upper shell 7 is fixedly connected with the positioning shell mounting cover 3, the lower end of the upper shell is fixedly connected with the upper end of the lower shell 9, the rotary positioning body 1 is in coaxial clearance fit with an inner hole of the positioning shell mounting cover 3 through the outer ring pressing cylinder 2 and is contacted with the upper end of the control shaft moving cylinder 6 through the first reset spring 4, the upper end of the rotary stepped cylinder 5 is contacted with the lower end of the outer ring pressing cylinder 2, the lower end of the rotary stepped cylinder is contacted with the upper part of the control shaft moving cylinder 6, the middle part of the control shaft moving cylinder 6 is contacted with the bottom end of the inner wall of the lower shell 9 through the spring support 8 and the second reset spring 10, the bottom end of which is connected to a controlled rod or shaft 63. The rotary positioning body 1, the outer ring pressing barrel 2, the positioning shell mounting cover 3, the first reset spring 4, the rotary stepped barrel 5, the control shaft moving barrel 6, the upper shell 7, the spring support 8, the lower shell 9 and the second reset spring 10 are all coaxially arranged and assembled according to the structure shown in the figure.

As shown in fig. 2, the rotary positioning body 1 includes an outer pressing column 11, a semi-through cylinder 13 and a first fixed sliding block 12, the outer pressing column 11 is in clearance fit with an inner hole of the outer pressing cylinder 2, the semi-through cylinder 13 is connected to the lower end of the outer pressing column 11, a pressing stepped tooth column is distributed at the bottom end of the semi-through cylinder, the first fixed sliding block 12 is fixedly connected to the upper end of the semi-through cylinder 13 and is in sliding connection with a slide 53 on the wall of the rotary stepped cylinder 5, axial movement can be performed, and the first fixed sliding block 12 is provided with two blocks and is distributed at an interval of 180 degrees.

As shown in fig. 3, the outer ring pressing barrel 2 comprises an outer ring pressing barrel body 22, a second fixed sliding block 21 and a first toothed column 23, the second fixed sliding block 21 is fixedly connected to the upper half end of the cylindrical surface of the outer ring pressing barrel body 22 and is in sliding connection with an inner wall slide 31 of the positioning shell mounting cover 3, and can move axially, the first toothed column 23 is fixedly connected to the lower half end of the cylindrical surface of the outer ring pressing barrel body 22 and is in meshed connection with a third toothed column 51 of the rotary stepped barrel 5, the second fixed sliding blocks 21 are two and are distributed at intervals of 180 degrees, and the first toothed columns 23 are 4 and are uniformly distributed along the circumferential direction.

As shown in fig. 4, the bottom end of the positioning housing mounting cover 3 is provided with a second tooth post 34, the middle of the positioning housing mounting cover is provided with a through hole 32, the two ends of the positioning housing mounting cover are provided with two end face blind holes 33, the axes of which are parallel to the axis of the positioning housing mounting cover 3, the connecting line of the centers of the two end face blind holes is provided with two inner wall slideways 31 which are oppositely distributed on the inner wall of the through hole 32, and the second tooth posts 34 are provided with 8 teeth with the same size and are uniformly distributed along the circumferential direction.

As shown in fig. 5, the middle of the rotary stepped cylinder 5 is provided with a cylinder hole 52, the upper end of the rotary stepped cylinder is provided with 8 third tooth posts 51 which are uniformly distributed along the circumferential direction, and small grooves are arranged between the adjacent third tooth posts 51, wherein the upper end of the rotary stepped cylinder is provided with 2 wall upper slideways 53 which are distributed at intervals of 180 degrees, and the bottom end of the rotary stepped cylinder is provided with rotary stepped tooth posts 54 which are distributed according to a certain circumferential angle and axial distance. Preferably, the angle and direction of the slope of the third tooth post 51 is the same as the slope of the second tooth post 34, and sufficient meshing is achieved to allow circumferential rotation.

As shown in FIG. 6, the top end surface of the control shaft moving cylinder 6 is a concave surface 61, a fixed pressure block 62 is arranged on the outer wall near the top end, and a control rod or shaft 63 is arranged at the bottom. Preferably, the angle and direction of the upper end inclined plane of the fixed pressed block 62 are the same as those of the inclined plane of the rotary stepped tooth column 54, and the fixed pressed block 62 is fully meshed with one of the rotary stepped tooth columns 54, so that a certain distance of axial movement and a certain angle of circumferential rotation can be simultaneously realized.

As shown in fig. 9, the upper end surface of the lower housing 9 is provided with two symmetrical blind holes 92, and the lower end of the inner hole is provided with a concave hole 91 and contacts with the lower end of the second return spring 10; as shown in fig. 7, the upper housing 7 has a housing hole 71 in the middle, two symmetrical upper blind holes 72 on the upper end surface, two symmetrical lower blind holes 73 on the lower end surface, the upper end surface of which is connected with the blind holes 33 on the end surface of the positioning housing mounting cover 3 through the upper blind holes 72 by bolts, and the lower end surface of which is connected with the blind holes 92 on the upper end surface of the lower housing 9 through the lower blind holes 73 by bolts. The connecting line of the centers of the two upper blind holes 72 and the connecting line of the centers of the two lower blind holes 73 form a certain included angle.

As shown in fig. 8, the spring supporter 8 is provided with a shaft hole 81 and a concave surface 82 at the bottom surface and contacts the upper end of the second return spring 10. The first return spring 4 and the second return spring 10 have the same structure, and the second return spring 10 is larger in size.

While the first fixed sliding block 12 is in sliding connection with the upper sliding channel 53 of the wall, the rotary positioning body 1 is ensured to move downwards along the axial direction by a corresponding distance, so that the tooth tip of the pressing stepped tooth column 54 is contacted with the middle part of the upper end inclined plane of the fixed pressure receiving block 62; while the second fixed slide block 21 is connected with the inner wall slideway 31 in a sliding way, the outer ring pressing barrel 2 is ensured to move downwards along the axial direction by a corresponding distance, so that the tooth tip of the first tooth column 23 is contacted with the middle part of the inclined surface of the third tooth column 51.

In embodiment 1, when the fixed pressed block 62 is fully engaged with the first step of the rotary stepped toothed column 54, and an axially downward external force is applied to the external pressed column 11, after the first fixed slide block 12 moves downwards along the axial direction on the wall slide way 53 for positioning movement, the tooth surface of the pressing stepped toothed column at the lower end of the semi-through cylinder 13 will contact with the inclined surface of the fixed pressed block 62, because one side surface of the fixed pressed block 62 is constrained by the side surface of the toothed column in the rotary stepped toothed column 54 contacting with the fixed pressed block, the pressed stepped toothed column can only move downwards along the axial direction before being out of contact with the fixed pressed block, and can not rotate circumferentially, and simultaneously, the control shaft moving cylinder 6 will apply an acting force to the spring support 8, and the spring support 8 will compress the second return spring 10 to generate elastic potential energy storage force, when one side surface of the fixed pressed block 62 is out of contact with the inclined surface of the rotary stepped toothed column 54 contacting with the fixed pressed block, i.e. when the inclined surface of the fixed pressed block 62 is not constrained by the inclined surface, under the action of the second return spring 11, the control shaft moving cylinder 6 can move upwards along the axial direction under the pushing of the spring support 8, the fixed pressed block 62 can slide along the tooth surface of the pressing stepped tooth column at the lower end of the semi-through cylinder 13, a certain angle of circumferential rotation and a certain distance of axial movement can occur until the fixed pressed block stops moving at the most concave point between the two tooth columns of the pressing stepped tooth column at the lower end of the semi-through cylinder 13, after the acting force applied at the upper end of the outer pressing column 11 is cancelled, the acting force of the first return spring 4 pushes the rotary positioning body 1 to move upwards under the guiding of the wall upper slideway 53, the fixed pressed block 62 can be separated from the contact with the tooth surface of the pressing stepped tooth column at the lower end of the semi-through cylinder 13 after being contacted with the tooth surface of the second stepped tooth column of the rotary stepped tooth column 54, so that the fixed pressed block 62 can slide on the tooth surface of the second stepped tooth column 54, and the certain angle of circumferential rotation and the certain distance of axial movement can occur, until the bottom of the fixed compression block stops moving under the constraint of the third step tooth column of the rotary step tooth column 54, the fixed compression block 62 can be fully meshed with the second step tooth column of the rotary step tooth column 54, and the process has circumferential rotation of a certain angle and axial movement of a certain distance.

In the embodiment 2, the upper end surface of the outer ring pressing cylinder 2 is stressed, the second fixed sliding block 21 moves axially downward in the inner wall slideway 31, when the tooth surface of the first tooth column 23 contacts with the tooth surface of the third tooth column 51, the three parts of the rotating stepped cylinder 5, the control shaft moving cylinder 6 and the spring support 8 move axially downward (the three parts can be regarded as one component), and the spring is compressed, so that the elastic potential energy is increased, in the process, the third tooth column 51 cannot slide on the tooth surface of the first tooth column 23 due to the constraint of the second tooth column 34, so that only the axial movement is generated, after a certain distance of movement, when the tooth point of the third tooth column 51 is lower than the tooth point of the second tooth column 34, namely, when the third tooth column 51 is separated from the second tooth column 34, namely, the second tooth column 34 does not constrain on the third tooth column 51, the elastic potential energy released by the spring acts on the spring contact plane, so as to enable the spring support 8, The shaft control moving cylinder 6 and the rotating stepped cylinder 5 are pushed upwards along the axial direction, the third toothed column 51 can sequentially slide on the tooth surfaces of the first toothed column 23 and the second toothed column 34, when the third toothed column 51 moves to the tooth root of the first toothed column 23, the first toothed column 23 can restrain the third toothed column 51, the acting force of the outer ring pressing the upper end surface of the cylinder is cancelled, the third toothed column 51 can slide on the tooth surface of the second toothed column 34 under the action of the second reset spring and is fully meshed with the second toothed column 34, and finally the rotating stepped cylinder 5, the shaft control moving cylinder 6, the spring support 8 and the shaft only rotate circumferentially at a certain angle.

The rotary angle positioning device capable of controlling the circumferential rotation and the axial movement of the rod or the shaft is simple and rapid to operate, compact in structure and stable in operation, and the axial distance and the circumferential angle of the rod or the shaft are accurately adjusted and can be positioned circumferentially and axially; by means of the specific toothed column design, the periodic circumferential rotation and the axial movement of the shaft can be realized, and the influence on the output effect caused by the operation error due to manual adjustment is avoided.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.