Single-arm five-axis rotary table

Abstract

The utility model discloses a single-arm five-axis rotary table which comprises a mounting seat mounted on a transverse moving mechanism of a five-axis linkage processing machine and a first rotating mechanism mounted on the mounting seat, a first rotating cylinder is mounted on the first rotating mechanism, a connecting seat is mounted on the first rotating cylinder, and a second rotating cylinder is mounted on the connecting seat. A second rotating mechanism is arranged on the connecting base, and a second rotating cylinder used for installing a workpiece clamp is installed on the second rotating mechanism; the rotating axis of the first rotating mechanism is perpendicular to the rotating axis of the second rotating mechanism. A cutter height detection sensor is mounted on the connecting seat; the current situation that in the prior art, a five-axis rotary table is not integrated with a height reference for achieving height parameter calibration after tool changing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of five-axis linkage machining machines, in particular to a single-arm five-axis turntable. Background Art

[0002] The five-axis linkage numerically controlled machine tool is a machine tool with high scientific and technological content and high precision, which is specially used for machining complex curved surfaces. It is widely used in industries such as aviation, aerospace, military, scientific research, precision instruments, and high-precision medical equipment. The five-axis turntable is an important component device in the five-axis numerically controlled machine tool. Its main function is to fixedly connect the workpiece to the five-axis turntable of the five-axis linkage numerically controlled machine tool through a fixture before machining, so as to facilitate the five-axis numerically controlled machine tool to perform relevant grinding or milling on the workpiece. At the same time, the five-axis turntable can drive the workpiece to rotate during the machining process, so that the relatively complex shape and curved surface of the part can be completed with one clamping.

[0003] The five-axis turntable can realize the adjustment of the swing angle and rotation angle of the workpiece to match the machining angle requirements of the five-axis linkage numerically controlled machine tool. However, during the machining process, the five-axis linkage numerically controlled machine tool will change tools, and after changing the tools, the height parameter relative to the five-axis turntable needs to be retooled. In the prior art, manual adjustment of the tool and the workpiece is mainly used for tool setting before machining, and there is no integrated relative height reference on the five-axis turntable to automatically complete the calibration of the tool height parameter. Summary of the Utility Model

[0004] (1) Technical Problem

[0005] The purpose of the utility model is to provide a single-arm five-axis turntable to solve the problem that there is no integrated height reference on the five-axis turntable in the prior art to realize the calibration of the height parameter after tool change.

[0006] (2) Technical Solution

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A single-arm five-axis turntable includes a mounting base installed on the cross-movement mechanism of a five-axis linkage machining machine and a first rotating mechanism installed on the mounting base. A first rotating cylinder is installed on the first rotating mechanism, a connecting seat is installed on the first rotating cylinder, a second rotating mechanism is provided on the connecting seat, and a second rotating cylinder for installing a workpiece fixture is installed on the second rotating mechanism; the rotation axis of the first rotating mechanism is perpendicular to the rotation axis of the second rotating mechanism; a tool height detection sensor is installed on the connecting seat.

[0009] Preferably, the first rotating mechanism includes a first turntable installed on the mounting base, a first motor is connected to the first turntable, and the first rotating cylinder is installed on the first turntable.

[0010] Preferably, the connecting seat includes a flange mounted on the first rotating cylinder, the flange is provided with a connecting arm extending obliquely downward, an installation shell is fixed on the connecting arm, and the top surface of the installation shell is lower than the central plane of the flange.

[0011] Preferably, the second rotating mechanism includes a second turntable arranged in the installation shell, a second motor is connected to the second turntable, and a protective cover for covering the second motor is arranged at the bottom of the installation shell; the second rotating cylinder is installed on the second turntable.

[0012] Preferably, the mounting seat is provided with a first connecting ring for covering the first turntable, two first sealing grooves are spaced apart on the first connecting ring, and first sealing rings are arranged in the first sealing grooves; the inner wall of the first rotating cylinder is rotationally matched with the first connecting ring.

[0013] Preferably, the installation shell is provided with a second connecting ring for covering the second turntable, two second sealing grooves are spaced apart on the second connecting ring, second sealing rings are arranged in the second sealing grooves, and the second rotating cylinder is rotationally matched with the second connecting ring.

[0014] Preferably, the second rotating cylinder is provided with a first mounting hole, a second mounting hole distributed in a triangular shape, and a third mounting hole distributed in a rectangular shape; the triangle formed by the first mounting holes is larger than the triangle formed by the second mounting holes, and the bottom sides are respectively located on both sides of the center line of the second rotating cylinder.

[0015] Preferably, the first mounting hole and the second mounting hole are used for installing a three-jaw chuck, and the third mounting hole is used for installing a self-centering vise.

[0016] (III) Beneficial effects

[0017] The connecting seat is swung by the first rotating mechanism, and the second rotating cylinder is rotated by the second rotating mechanism. Thus, the workpiece fixture mounted on the second rotating cylinder can drive the workpiece to adjust the swing angle and the rotation angle. Specifically, by ensuring that the axes of the two rotating movements are perpendicular, ensuring that the tool centering position is on the vertical line of the intersection point, and at the same time, a tool height detection sensor is installed on the connecting seat. After replacing the tool and moving downward to touch the tool height detection sensor, the relative height parameter of the currently replaced tool can be obtained, so that there is no need to perform manual compensation based on the workpiece as a reference;

[0018] At the same time, the entire turntable can be moved by the transverse movement mechanism in five-axis linkage machining. Thus, the position movement and angle rotation of the workpiece can be realized, and the position and angle dynamic adjustment can be realized during more complex curved surface machining.

[0019] Since the axes are perpendicular, the volume of the entire turntable is reduced, making it suitable for use in a five-axis linkage machine with a smaller volume requirement. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from the first perspective of the embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure from the second perspective of the embodiment of the present invention

[0022] Figure 3 It is a schematic diagram of the exploded structure from the first perspective of the embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the exploded structure from the second perspective of the embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the connecting seat in the embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the second rotating cylinder in the embodiment of the present invention;

[0026] In Figures 1 to 6 the correspondence between the component names or lines and the drawing reference numerals is as follows:

[0027] Mounting seat 1, first rotating mechanism 2, first turntable 21, first motor 22, first rotating cylinder 3, connecting seat 4, flange 41, connecting arm 42, mounting shell 43, second rotating mechanism 5, second turntable 51, second motor 52, protective cover 53, second rotating cylinder 6, tool height detection sensor 7, first connecting ring 8, first sealing groove 9, second connecting ring 10, second sealing groove 11, first mounting hole 12, second mounting hole 13, third mounting hole 14. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See Figures 1 - 6As shown in the figure, in the embodiment of the present utility model, a single-arm five-axis turntable is proposed, which is applied to a five-axis linkage machining machine to realize the adjustment of the rotation angle of the workpiece in two dimensions. At the same time, it can be moved as a whole and can realize at least three-direction adjustment, ensuring that the workpiece can perform more complex curved surface machining after the angle is adjusted. Specifically, it includes a mounting base 1 installed on the cross-sliding mechanism of the five-axis linkage machining machine and a first rotating mechanism 2 installed on the mounting base 1. A first rotating cylinder 3 is installed on the first rotating mechanism 2, a connecting seat 4 is installed on the first rotating cylinder 3, a second rotating mechanism 5 is provided on the connecting seat 4, and a second rotating cylinder 6 for installing a workpiece fixture is installed on the second rotating mechanism 5. The horizontal displacement of the entire turntable is adjusted through the cross-sliding mechanism on the five-axis linkage machining machine, and the first rotating mechanism 2 drives the workpiece to swing and adjust the swing angle relative to the horizontal axis through the first rotating cylinder 3 and the connecting seat 4. At the same time, the second rotating mechanism 5 drives the workpiece to rotate and adjust the angle relative to the vertical axis, so as to realize the dynamic adjustment of the workpiece in three dimensions of displacement, swing and rotation, and can cooperate with the five-axis linkage machining machine to perform complex angle adjustment during machining, and can realize the machining of complex curved surfaces and complex structures.

[0030] At the same time, the rotation axis of the first rotating mechanism 2 is perpendicular to the rotation axis of the second rotating mechanism 5, which can further reduce the volume of the entire turntable, so that it can be relatively applied to a small-volume five-axis linkage machining machine; at the same time, through the mutually perpendicular axes, the tool machining centering position can be on the vertical line of the intersection point.

[0031] At the same time, a tool height detection sensor 7 is installed on the connecting seat 4. Specifically, a position switch, a pressure sensor, etc. can be used. After the tool height detection sensor 7 is integrally installed through the height reference on the connecting seat 4, when the five-axis linkage machining machine replaces the tool, the current height after the tool replacement will be detected by moving the tool to touch it, and the parameters will be fed back to the five-axis linkage machining machine to realize automatic height compensation. Specific circuit controls such as data transmission can directly adopt the existing technology. The main purpose of this embodiment is to integrate the tool height detection sensor 7 and ensure the accuracy of the relative height detection reference through the accuracy of the installation surface.

[0032] Among them, the first rotating mechanism 2 includes a first turntable 21 installed on the mounting base 1. A first motor 22 is connected to the first turntable 21. The first rotating cylinder 3 is installed on the first turntable 21. The first turntable 21 is driven by the first motor to rotate, thereby driving the first rotating cylinder 3 to rotate synchronously. At the same time, a first connecting ring 8 for covering the first turntable 21 is provided on the mounting base 1. Two first sealing grooves 9 are spaced apart on the first connecting ring 8. First sealing rings are provided in the first sealing grooves 9. The inner wall of the first rotating cylinder 3 is rotationally matched with the first connecting ring 8. Thus, relative sealing can be achieved during the rotation of the first rotating cylinder 3, preventing external dust and other impurities from entering the interior and causing jamming effects on the rotation state of the first turntable 21, etc.

[0033] Specifically, the connecting seat 4 is used to install and integrate the second rotating mechanism 5 and at the same time transmit the power of the first rotating mechanism 2. The connecting seat 4 includes a flange 41 installed on the first rotating cylinder 3. An inclined downward extending connecting arm 42 is provided on the flange 41. An installation shell 43 is fixed on the connecting arm 42. The top surface of the installation shell 43 is lower than the central plane of the flange 41. The flange 41 is connected to the inner ring of the rotating cylinder, and the outer ring of the flange 41 is connected to the connecting arm 42. The entire connecting seat 4 is integrally formed, and the top surface of the installation shell 43 is lower than the central plane of the flange 41. The width of the connecting arm 42 is minimized, so that the occupied volume of the entire connecting seat 4 is small.

[0034] Specifically, the second rotating mechanism 5 includes a second turntable 51 provided in the installation shell 43. A second motor 52 is connected to the second turntable 51. A protective cover 53 for covering the second motor 52 is provided at the bottom of the installation shell 43. The second motor 52 is protected by the protective cover 53. The second rotating cylinder 6 is installed on the second turntable 51. The second motor 52 operates independently to drive the second turntable 51 to rotate, driving the second rotating cylinder 6 to rotate synchronously, realizing the horizontal rotation angle adjustment of the workpiece.

[0035] At the same time, a second connecting ring 10 for covering the second turntable 51 is provided on the installation shell 43. Two second sealing grooves 11 are spaced apart on the second connecting ring 10. Second sealing rings are provided in the second sealing grooves 11. The second rotating cylinder 6 is rotationally matched with the second connecting ring 10. By maintaining sealing during the rotational mating process of the second rotating cylinder 6 and the second connecting ring 10, dust prevention can be achieved inside, avoiding the situation of jamming of the second turntable 51.

[0036] Specifically, different types of workpiece fixtures can be installed on the second rotating cylinder 6. By providing a first mounting hole 12, a second mounting hole 13, and a third mounting hole 14 that are triangularly distributed and rectangularly distributed on the second rotating cylinder 6, and the triangle formed by the first mounting holes 12 is larger than the triangle formed by the second mounting holes 13, and the bases are respectively located on both sides of the center line of the second rotating cylinder 6. The first mounting holes 12, the second mounting holes 13, and the third mounting holes 14 with different shapes can be adapted to different types of workpiece fixtures, and specific workpiece fixtures can be used accordingly according to processing needs.

[0037] Specifically, the first mounting hole 12 and the second mounting hole 13 are used to mount a three-jaw chuck, and the third mounting hole 14 is used to mount a self-centering vise, thereby correspondingly increasing the types of workpiece fixtures and improving the processing convenience.

[0038] In the present invention, unless otherwise clearly defined and limited, terms such as "mounting", "connecting", "connecting", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A single-arm five-axis turntable, characterized in that: It includes a mounting base installed on the transverse movement mechanism of a five-axis linkage machining machine and a first rotating mechanism installed on the mounting base. A first rotating cylinder is installed on the first rotating mechanism, a connecting seat is installed on the first rotating cylinder, a second rotating mechanism is provided on the connecting seat, and a second rotating cylinder for installing a workpiece fixture is installed on the second rotating mechanism; The rotation axis of the first rotating mechanism is perpendicular to the rotation axis of the second rotating mechanism; A tool height detection sensor is installed on the connecting seat.

2. The single-arm five-axis turntable according to claim 1, characterized in that: The first rotating mechanism includes a first turntable installed on the mounting base, a first motor is connected to the first turntable, and the first rotating cylinder is installed on the first turntable.

3. The single-arm five-axis turntable according to claim 2, characterized in that: The connecting seat includes a flange plate installed on the first rotating cylinder. The flange plate is provided with a connecting arm extending obliquely downward. An installation shell is fixed on the connecting arm, and the top surface of the installation shell is lower than the central plane of the flange plate.

4. The single-arm five-axis turntable according to claim 3, characterized in that: The second rotating mechanism includes a second turntable provided in the installation shell, a second motor is connected to the second turntable, and a protective cover for covering the second motor is provided at the bottom of the installation shell; The second rotating cylinder is installed on the second turntable.

5. The single-arm five-axis turntable according to claim 2, wherein: A first connecting ring for covering the first turntable is provided on the mounting base. Two first sealing grooves are spaced apart on the first connecting ring, and first sealing rings are provided in the first sealing grooves; The inner wall of the first rotating cylinder is in rotational cooperation with the first connecting ring.

6. The single-arm five-axis turntable according to claim 4, wherein: A second connecting ring for covering the second turntable is provided on the installation shell. Two second sealing grooves are spaced apart on the second connecting ring, and second sealing rings are provided in the second sealing grooves. The second rotating cylinder is in rotational cooperation with the second connecting ring.

7. A single-arm five-axis turntable according to any one of claims 1-6, characterized in that: First mounting holes, second mounting holes are formed on the second rotating cylinder in a triangular distribution, and third mounting holes are formed in a rectangular distribution; The triangle formed by the first mounting holes is larger than the triangle formed by the second mounting holes, and the bases are respectively located on both sides of the center line of the second rotating cylinder.

8. The single-arm five-axis turntable according to claim 7, characterized in that: The first mounting holes and the second mounting holes are used for installing a three-jaw chuck, and the third mounting holes are used for installing a self-centering vise.

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