Arc-shaped dovetail taper displacement table and adjustable mechanism for operating robot

Abstract

The present invention discloses an arc-shaped dovetail slope displacement table and an adjustable mechanism for an operating robot, which includes an upper cover, an arc-shaped base, and a transmission lead screw. The transmission lead screw is placed inside the arc-shaped base. A four-way shaft base is provided inside the upper cover, and the other end of the four-way shaft base is connected to the transmission lead screw. Under the action of an external force, the transmission lead screw is rotated to enable the four-way shaft base to drive the upper cover to slide on the arc-shaped base. In this way, the sliding angle between the upper cover and the arc-shaped base can be manually controlled, and no other complex structures need to be added, which can reduce the external space required for the entire slope adjustment. The operation of the present invention is simple. Only by using the cooperation between the transmission lead screw and the four-way shaft base can the horizontal angle of the force application direction be changed, with high precision, fewer components, beautiful appearance, and convenient maintenance and repair.

Description

Technical Field

[0001] The present invention belongs to the field of precision machining and positioning, and particularly relates to an arc-shaped dovetail slope displacement table and an adjustable mechanism for an operating robot. Background Art

[0002] Angular displacement tables have become increasingly important and widely used in systems such as astronomical telescopes, image stabilization, compound-axis precision tracking, and aiming optics. In traditional fields, angular displacement tables generally use traditional mechanical transmissions or servo motor systems. Traditional mechanical transmission mechanisms such as worm and worm gear mechanisms can complete the angular displacement positioning of the turntable by using the transmission of worm and worm gear; servo motor systems can complete the angular displacement positioning of the turntable through the angular displacement closed-loop control of the servo motor; or the angular displacement positioning of the turntable can be completed through the open-loop control of the stepper motor. The above angular displacement tables can also be used for precision angular displacement positioning. However, in practice, when applied to precision positioning, the currently collected displacement table devices are relatively complex. Usually, gears or screws are used to adjust the slope of the displacement table, resulting in problems such as high process risk, low positioning accuracy, large structural dimensions, high production costs, and difficulty in maintenance. Its displacement accuracy and motion ability are difficult to meet the requirements of complex machining and operation, which greatly limits the application and development of angular displacement tables. Summary of the Invention

[0003] Aiming at the deficiencies in the above technologies, the present invention provides an arc-shaped dovetail slope displacement table and an adjustable mechanism for an operating robot, which can not only effectively reduce the process risk of the arc-shaped dovetail slope displacement table, but also have fewer components, simple structure and high precision. It is not only beautiful in appearance, but also very convenient for maintenance.

[0004] To achieve the above object, the present invention provides an arc-shaped dovetail slope displacement table, including an upper cover, an arc-shaped base and a transmission screw rod. The transmission screw rod is placed inside the arc-shaped base. A four-way shaft base is provided inside the upper cover, and the other end of the four-way shaft base is connected to the transmission screw rod. Under the action of an external force, the transmission screw rod is rotated to drive the four-way shaft base to drive the upper cover to slide on the arc-shaped base.

[0005] Preferably, the bottom surface of the upper cover close to the arc-shaped base is arc-shaped, and the upper cover slides along the arc surface direction of the arc-shaped base.

[0006] Preferably, screw holes are provided on the upper cover, and compression screws are installed on the screw holes. The compression screws are used to lock the sliding angle when the upper cover slides on the arc-shaped base.

[0007] Preferably, a first screw is provided beside the screw hole. One end of the first screw is embedded inside the upper cover to adjust the damping feeling when the upper cover slides on the arc-shaped base.

[0008] Preferably, a four-way shaft pin is provided inside the four-way shaft base. A through hole is provided on the four-way shaft pin, and the transmission lead screw passes through the through hole and is slidably connected to the four-way inner shaft base.

[0009] Preferably, it further includes a four-way shaft middle seat. The four-way shaft pin is placed inside the four-way shaft middle seat, and the four-way shaft middle seat is inserted into the four-way shaft base for moving up, down, left, and right inside the four-way shaft base.

[0010] Preferably, through holes are provided on both the upper cover and the four-way shaft base, and second screws are provided inside the through holes. The second screws are used to fixedly connect the upper cover and the four-way shaft base.

[0011] Preferably, one end of the transmission lead screw extends to the outside of the arc base and is connected with a second nut. Under the action of an external force, the second nut is rotated to drive the upper cover to slide on the arc base.

[0012] Preferably, the second nut drives the upper cover to slide within plus or minus 15 degrees on the arc base.

[0013] An adjustable mechanism for operating a robot includes the arc dovetail slope displacement table described in any one of the above.

[0014] The beneficial effects of the present invention are as follows: Compared with the prior art, the arc dovetail slope displacement table provided by the present invention includes an upper cover, an arc base, and a transmission lead screw. The transmission lead screw is placed inside the arc base. A four-way shaft base is provided inside the upper cover, and the other end of the four-way shaft base is connected to the transmission lead screw. Under the action of an external force, the transmission lead screw is rotated to drive the four-way shaft base to drive the upper cover to slide on the arc base. One end of the transmission lead screw extends to the outside of the arc base and is connected with a second nut. The second nut is a knurled nut. Twisting the knurled nut makes the transmission lead screw perform a linear motion while driving the four-way shaft base to move, so that the upper cover slides on the arc base. In this way, the sliding angle between the upper cover and the arc base can be artificially controlled, and no other complex structures need to be added, which can reduce the external space required for the entire slope adjustment. In order to fix the sliding position of the upper cover during sliding, screw threads are provided on the upper cover, and a pressing screw is installed on the screw threads. By setting the pressing screw, the sliding angle of the upper cover can be locked and pressed at any time during the slope movement of the upper cover on the arc base. The operation of this embodiment is simple. Only by using the cooperation between the transmission lead screw and the four-way shaft base can the horizontal angle of the force direction be changed, with high precision, fewer components, beautiful appearance, and convenient maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front overall structure diagram of the present invention;

[0016] Figure 2 This is the overall reverse structure diagram of the present invention;

[0017] Figure 3 This is the exploded view of the present invention from the front perspective;

[0018] Figure 4 This is the exploded view of the present invention from the side perspective;

[0019] Figure 5 This is the structure diagram when the upper cover of the invention slides.

[0020] The description of the main component symbols is as follows:

[0021] 1. Upper cover; 2. Arc-shaped base; 3. Four-way shaft base; 4. Four-way shaft middle seat; 5. Four-way shaft tooth pin; 6. Transmission lead screw; 7. Nylon gasket; 9. Inner hole external thread nut; 10. Knurled nut; 11. Hexagon socket head screw; 13. Compression screw. Specific embodiments

[0022] In order to describe the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings.

[0023] Please refer to Figures 1-5, an arc-shaped dovetail taper displacement table of the present invention includes an upper cover 1, an arc-shaped base 2 and a transmission lead screw 6. The transmission lead screw 6 is placed inside the arc-shaped base 2. A four-way shaft base 3 is provided inside the upper cover 1, and the other end of the four-way shaft base 3 is connected to the transmission lead screw 6. Under the action of an external force, the transmission lead screw 6 is rotated to make the four-way shaft base 3 drive the upper cover 1 to slide on the arc-shaped base 2. Specifically, nylon gaskets 7 are installed at both ends of the transmission lead screw 6. The nylon gaskets 7 are used to sleeve both ends of the transmission lead screw 6. Fixed holes are provided on the arc-shaped base 2. The nylon gaskets 7 are inserted into the fixed holes of the arc-shaped base 2, and then the nylon gaskets 7 are fixed on the arc-shaped base 2 with internal hole external thread nuts 9, so that the transmission lead screw 6 can be firmly fixed on the arc-shaped base 2. One end of the transmission lead screw 6 extends outside the arc-shaped base 2 and is connected with a second nut. More preferably, the second nut is a knurled nut 10. The knurled nut 10 can prevent slipping. By twisting the knurled nut 10, while the transmission lead screw 6 makes a linear motion, it drives the four-way shaft base 3 to move, so that the upper cover 1 slides on the arc-shaped base 2. More preferably, the bottom surface of the upper cover 1 close to the arc-shaped base 2 is arc-shaped, and one end of the arc-shaped base 2 close to the upper cover 1 is also arc-shaped. In this way, when the upper cover 1 slides on the arc-shaped bottom surface, it can fit on the arc-shaped bottom surface to make a taper motion. The existing taper displacement tables can only move in the fixed vertical and horizontal directions. In this embodiment, by cooperating the knurled nut 10, the transmission lead screw 6 and the four-way shaft base 3, in this way, the sliding angle between the upper cover 1 and the arc-shaped base 2 can be artificially controlled, that is, the fixed adjustment angle in the prior art can be converted into an adjustable sliding angle, and no other complex structures need to be added, so that the external space required for the whole taper adjustment can be reduced. This embodiment is simple to operate. Only by the cooperation between the transmission lead screw 6 and the four-way shaft base 3 can the horizontal angle of the force application direction be changed, with high precision, fewer components, beautiful appearance, and convenient maintenance and repair at the same time.

[0024] In this embodiment, in order to fix the sliding position of the upper cover 1 during sliding, screw thread holes are provided on the upper cover 1, and a compression screw 13 is installed on the screw thread holes. By setting the compression screw 13, the sliding angle of the upper cover 1 can be locked and compressed at any time during the process of the upper cover 1 making a taper motion on the arc-shaped base 2. More preferably, a first screw is provided beside the screw thread hole. The first screw is an internal hexagon machine screw. One end of the internal hexagon machine screw is embedded inside the upper cover 1 to regulate the damping feeling when the upper cover 1 and the arc-shaped base 2 slide. By regulating the damping feeling when the upper cover 1 and the arc-shaped base 2 slide, the friction force between the upper cover 1 and the arc-shaped base 2 can be increased, so that the upper cover 1 slides slowly on the arc-shaped base 2. In this way, the sliding angle can be more determined, the measurement accuracy of the displacement table can be increased, and at the same time, it is more conducive to the compression screw 13 to lock the sliding angle.

[0025] In this embodiment, a four-way shaft pin 5 is provided inside the four-way shaft base 3. The four-way shaft pin 5 is provided with a through hole, and the transmission lead screw 6 passes through the through hole and is slidably connected to the four-way shaft base 3. A four-way shaft middle seat 4 is further included. The four-way shaft pin 5 is placed inside the four-way shaft middle seat 4, and the four-way shaft middle seat 4 is inserted into the four-way shaft base 3 for moving up, down, left, and right inside the four-way shaft base 3. Specifically, through holes are provided on both the upper cover 1 and the four-way shaft base 3. Second screws are provided inside the through holes. The second screws are socket head cap screws 11 with internal hexagons, and the socket head cap screws 11 with internal hexagons are used to fixedly connect the upper cover 1 and the four-way shaft base 3. The four-way shaft middle seat 4 is driven by the four-way shaft pin 5 to move up, down, left, and right in the inner hole of the four-way shaft base 3, so that the four-way shaft base 3 provided on the upper cover 1 can realize the inclined movement of the arc surface fitting between the upper cover 1 and the arc base 2.

[0026] In this embodiment, the knurled nut 10 drives the upper cover 1 to slide within plus or minus 15 degrees on the arc base 2. Specifically, scales are engraved on the arc base 2, and the arc inclination angle of the arc base 2 is plus 15 degrees to minus 15 degrees horizontally. More preferably, in order to make the inclined displacement easier to manipulate, the optimal torsion angle is between plus 14.5 degrees and minus 14.5 degrees. In this way, this embodiment can utilize the relative sliding of the upper cover 1 on the arc base 2 to realize the change of the angle in the horizontal direction of the force. In this way, the components are fixed on the upper cover 1, and the knurled nut 10 is rotated. In this way, the upper cover 1 can drive the components to tilt on the arc base 2, thereby performing an inclined movement.

[0027] The working principle of this embodiment is as follows: The arc dovetail inclined displacement table includes an upper cover 1, an arc base 2, a four-way shaft base 3, a four-way shaft middle seat 4, a four-way shaft pin 5, a transmission lead screw 6, a knurled nut 10, and a clamping screw 13. Among them, the four-way shaft pin 5 is placed inside the four-way shaft middle seat 4, the four-way shaft middle seat 4 is placed inside the four-way shaft base 3, the top of the four-way shaft base 3 is fixedly connected to the upper cover 1. Through holes are provided on both the four-way shaft base 3 and the four-way shaft pin 5. The transmission lead screw 6 passes through the through holes on the four-way shaft base 3 and the four-way shaft pin 5. The transmission lead screw 6 is fixed on the arc base 2, and a knurled nut 10 is provided at one end. In this way, when the knurled nut 10 is twisted, it will drive the transmission lead screw 6 to rotate, and the four-way shaft pin 5 on the transmission lead screw 6 will drive the four-way shaft middle seat 4 and the four-way shaft base 3 to move up, down, left, and right, thereby driving the upper cover 1 to slide on the arc base 2. Since the surface of the upper cover 1 close to the arc base 2 is arc-shaped, and the surface of the arc base 2 close to the upper cover 1 is also arc-shaped, the arc surfaces of the upper cover 1 and the arc base 2 can be mutually attached. Therefore, the upper cover 1 can slide along the arc surface direction of the arc base 2, so that the upper cover 1 performs a reciprocating inclined movement on the arc base 2. When the upper cover 1 slides to the angle required by the user, the upper cover 1 can be fixedly locked at its sliding position through the clamping screw 13.

[0028] The present invention also provides an adjustable mechanism for operating a robot, including the arc dovetail taper displacement table described in any one of the above, so that the embossed nut 10 in the arc dovetail taper displacement table can be controlled by the robot to perform a taper movement. Secondly, the arc dovetail taper displacement table of the present invention can also be applied to operating machine equipment and / or operating automatic equipment. In addition, the arc dovetail taper displacement table in this embodiment can be used alone or in combination with other devices.

[0029] The advantages of the present invention are as follows:

[0030] 1. When there is a torsional force on the embossed nut 10, the transmission lead screw 6 is driven; after the transmission four-way shaft tooth pin 5 acts, the drive four-way shaft middle seat 4 and the four-way shaft base 3 are in a moving state, driving the upper cover 1 to perform a taper movement on the arc base 2;

[0031] 2. A compression screw 13 is provided on the outermost side of the upper cover 1. On the one hand, it can be loosened in time when the upper cover 1 and the arc base 2 rotate at an angle. On the other hand, when the upper cover 1 and the arc base 2 rotate at an angle and want to be fixed, it can be tightened in time;

[0032] 3. By adjusting the damping feeling when the upper cover 1 slides with the arc base 2, the friction between the upper cover 1 and the arc base 2 can be increased, so that the upper cover 1 slides slowly on the arc base 2, which can more accurately determine the sliding angle, increase the measurement accuracy of the displacement table, and at the same time it is more conducive to the compression screw 13 to lock the sliding angle.

[0033] Recitation of patent rights:

[0034] The above discloses only several specific embodiments of the present invention, but the present invention is not limited thereto. Any change that can be conceived by those skilled in the art of this patent should fall within the protection scope of the present invention.

Claims

1. An arc-shaped dovetail taper displacement stage, characterized in that It includes an upper cover, a transmission screw rod and an arc-shaped base with an arc-shaped surface. The transmission screw rod is placed inside the arc-shaped base. A four-way shaft base is provided inside the upper cover, and the other end of the four-way shaft base is connected to the transmission screw rod. Under the action of an external force, the transmission screw rod is rotated to make the four-way shaft base drive the upper cover to slide on the arc-shaped base. Among them, the bottom surface of the upper cover close to the arc-shaped base is arc-shaped, and the upper cover slides along the arc surface direction of the arc-shaped base. A four-way shaft tooth pin is provided inside the four-way shaft base, and a through hole is provided on the four-way shaft tooth pin. The transmission screw rod passes through the through hole and is slidably connected to the four-way shaft base. It further includes a four-way shaft middle seat. The four-way shaft tooth pin is placed inside the four-way shaft middle seat, and the four-way shaft middle seat is inserted into the four-way shaft base for moving up, down, left and right inside the four-way shaft base.

2. The arc-shaped dovetail taper displacement stage according to claim 1, wherein Screw thread holes are provided on the upper cover, and compression screws are installed on the screw thread holes. The compression screws are used to lock the sliding angle when the upper cover slides on the arc-shaped base.

3. The arc-shaped dovetail taper displacement table according to claim 2, wherein A first screw is provided beside the screw thread hole. One end of the first screw is embedded inside the upper cover for adjusting the damping feeling when the upper cover slides with the arc-shaped base.

4. The arc-shaped dovetail taper displacement table according to claim 1, wherein Through holes are provided on both the upper cover and the four-way shaft base, and second screws are provided inside the through holes. The second screws are used to fixedly connect the upper cover and the four-way shaft base.

5. The arc-shaped dovetail taper displacement stage according to any one of claims 1-4, characterized in that, One end of the transmission screw rod extends outside the arc-shaped base and is connected with a knurled nut. Under the action of an external force, the knurled nut is rotated to drive the upper cover to slide on the arc-shaped base.

6. The arc-shaped dovetail taper displacement table according to claim 5, wherein, The knurled nut drives the upper cover to slide within plus or minus 15 degrees on the arc-shaped base.

7. An adjustable mechanism for operating a robot, characterized in that, It includes the arc-shaped dovetail slope displacement table according to any one of claims 1-6.

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