Constant-pressure polishing driving assembly for optical curved surface

Abstract

The utility model discloses an optical curved surface constant pressure polishing driving assembly which comprises a sliding assembly, an air cylinder and an L-shaped connecting rod, the air cylinder is arranged at the moving end of a Y-axis driving device and connected to one end of the L-shaped connecting rod, and the other end of the L-shaped connecting rod and a second rotating device are connected to the moving end of the sliding assembly. The fixed end of the sliding assembly is arranged at the moving end of the Y-axis driving device, and the sliding assembly is arranged in the Z-axis direction. The fine adjustment seat is connected between the moving end of the Y-axis driving device and the fixed end of the sliding assembly and used for adjusting the angles of the polishing pen in the Z-axis direction and the Y-axis direction; by means of the structure, the polishing pen can move in multiple dimensions, linear motion is achieved, the angle adjusting function is achieved, and the polishing requirements for different workpieces can be met.

Description

Technical Field

[0001] The utility model relates to the field of optical curved surface polishing machine tools, and particularly relates to an optical curved surface constant pressure polishing drive assembly. Background Art

[0002] With the development and increasingly wide application of optical technology, the requirements for the machining surface shape accuracy and surface quality of the surface of optical elements are getting higher and higher, and the materials of optical elements are gradually developing towards difficult-to-machine materials with hard and brittle characteristics; however, the existing polishing machine tools have the following disadvantages:

[0003] 1. The number of motion dimensions is small, and the layout of each motion dimension is not reasonable enough, resulting in limited polishing angles and affecting the polishing effect;

[0004] 2. For the settings of different polishing inclination angles, manual adjustment is required, lacking in both efficiency and accuracy;

[0005] 3. There are certain limitations in degrees of freedom when processing workpieces with special angles or special shapes;

[0006] 4. Due to the curvature change of the optical curved surface, the contact state between the polishing tool and the workpiece is affected, resulting in unstable pressure control during the polishing process.

[0007] Therefore, there is an urgent need for an optical curved surface constant pressure polishing drive assembly to solve the above problems. Content of the Utility Model

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an optical curved surface constant pressure polishing drive assembly.

[0009] An embodiment of the utility model adopts the following technical solution to solve its technical problem: An optical curved surface constant pressure polishing drive assembly includes a sliding assembly, a cylinder, and an L-shaped connecting rod. The cylinder is installed on the moving end of the Y-axis driving device and is connected to one end of the L-shaped connecting rod. The other end of the L-shaped connecting rod and the second rotating device are connected to the moving end of the sliding assembly. The fixed end of the sliding assembly is installed on the moving end of the Y-axis driving device, and the sliding assembly is arranged along the Z-axis direction;

[0010] It further includes a fine adjustment seat connected between the moving end of the Y-axis driving device and the fixed end of the sliding assembly, which is used to adjust the angles of the polishing pen in the Z-axis direction and the Y-axis direction.

[0011] As one of the preferred embodiments of the utility model, an optical curved surface constant pressure polishing drive assembly further includes an L-shaped fixed seat arranged along the Y-axis direction on the frame. The Y-axis driving device is installed on the L-shaped fixed seat. The L-shaped connecting rod is arranged along the X-axis direction, with one end extending below the L-shaped fixed seat and the other end extending to one side of the L-shaped fixed seat.

[0012] As one of the preferred embodiments of the present utility model, an optical curved surface constant pressure polishing drive assembly further includes a second rotating device installed on the polishing drive assembly and arranged along the X-axis direction, for driving its rotating end to rotate around the X-axis, and the polishing pen is installed on the second rotating device.

[0013] As one of the preferred embodiments of the present utility model, the sliding assembly is arranged as an air floating seat.

[0014] As one of the preferred embodiments of the present utility model, the fine adjustment seat includes a mounting seat, a first movable seat, a second movable seat, a first driving assembly and a second driving assembly;

[0015] The mounting seat is installed on the moving end of the Y-axis driving device;

[0016] The first movable seat is installed on the mounting seat;

[0017] The second movable seat is installed on the first movable seat, and the fixed end of the sliding assembly is installed on the side of the second movable seat facing away from the first movable seat;

[0018] The first driving assembly is connected between the mounting seat and the first movable seat, for driving the first movable seat to rotate relative to the mounting seat along the Y-axis direction;

[0019] The second driving assembly is connected between the second movable seat and the first movable seat, for driving the second movable seat to rotate relative to the first movable seat along the Z-axis direction.

[0020] As one of the preferred embodiments of the present utility model, the first driving assembly includes a first arc convex part, a first arc groove and a first adjusting assembly;

[0021] The first arc convex part is arranged on the mounting seat and along the Y-axis direction;

[0022] The first arc groove is arranged on the side of the first movable seat close to the mounting seat and fits with the first arc convex part;

[0023] The first adjusting assembly is connected between the mounting seat and the first movable seat, and the first adjusting assembly can drive the first movable seat to move along the arc track of the first arc convex part and the first arc groove relative to the mounting seat when operating.

[0024] As one of the preferred embodiments of the present utility model, the second driving assembly includes a second arc convex part, a second arc groove and a second adjusting assembly;

[0025] The second arc convex part is arranged on the first movable seat and along the Z-axis direction;

[0026] The second arc groove is arranged on the side of the second movable seat close to the mounting seat and fits with the second arc convex part;

[0027] The second adjusting component is connected between the second movable seat and the first movable seat. When the second adjusting component acts, it can drive the second movable seat to move relative to the first movable seat along the arc track of the second arc convex part and the second arc groove.

[0028] Advantages of the present utility model: An optical curved surface constant pressure polishing driving component includes a sliding component, a cylinder, and an L-shaped connecting rod. The cylinder is installed on the moving end of the Y-axis driving device and is connected to one end of the L-shaped connecting rod. The other end of the L-shaped connecting rod and the second rotating device are connected to the moving end of the sliding component. The fixed end of the sliding component is installed on the moving end of the Y-axis driving device, and the sliding component is arranged along the Z-axis direction; it further includes a fine-tuning seat connected between the moving end of the Y-axis driving device and the fixed end of the sliding component, which is used to adjust the angles of the polishing pen in the Z-axis direction and the Y-axis direction; with the above structure, the polishing pen can have multi-dimensional movement, not only realizing linear movement, but also having an angle adjustment function, and can meet the polishing requirements of different workpieces. Description of the Drawings

[0029] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0030] Figure 1 is the first structural schematic diagram of an optical curved surface constant pressure polishing driving component;

[0031] Figure 2 is the second structural schematic diagram of an optical curved surface constant pressure polishing driving component;

[0032] Figure 3 is the partial structural schematic diagram of an optical curved surface constant pressure polishing driving component;

[0033] Figure 4 is the first structural schematic diagram of the fine-tuning seat;

[0034] Figure 5 is the second structural schematic diagram of the fine-tuning seat. Detailed Embodiments

[0035] This part will describe the specific embodiments of the present utility model in detail. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0036] In the description of the present utility model, the meaning of "a plurality of" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the corresponding number, while understandings such as "above", "below", and "within" include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0037] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the orientations or position relationships indicated by "up", "down", "front", "rear", "left", "right", etc., they are based on the orientations or position relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model.

[0038] In the present utility model, unless otherwise clearly defined, terms such as "arranged", "installed", and "connected" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected; they can be the communication inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0039] Referring to Figures 1 to 5 , a precision six-axis optical curved surface constant-pressure polishing machine tool includes a machine frame 100, a workpiece seat 200, an X-axis driving device 300, a Y-axis driving device 400, a Z-axis driving device 500, a swing device 600, a first rotating device 710, a second rotating device 720, and a constant-pressure polishing driving assembly 800;

[0040] The X-axis driving device 300 is installed on the machine frame 100 and is used to drive its moving end to move along the X-axis direction;

[0041] The Z-axis driving device 500 is installed on the moving end of the X-axis driving device 300 and is used to drive its moving end to move along the Z-axis direction;

[0042] The swing device 600 is installed on the moving end of the Z-axis driving device 500 and is used to drive its swinging end to swing around the Y-axis;

[0043] The first rotating device 710 is installed on the swinging end of the swing device 600 and is used to drive its rotating end to rotate around the Y-axis;

[0044] The workpiece seat 200 is installed on the rotating end of the first rotating device 710 and is used to clamp the workpiece;

[0045] The Y-axis driving device 400 is installed on the frame 100 and is used to drive its moving end to move along the Y-axis direction;

[0046] The constant-pressure polishing driving assembly 800 is installed on the moving end of the Y-axis driving device 400 and is located above the workpiece seat 200;

[0047] The second rotating device 720 is installed on the constant-pressure polishing driving assembly 800 and is used to drive its rotating end to rotate around the X-axis. The polishing pen 840 is installed on the second rotating device 720.

[0048] In the present utility model, the working principle is as follows:

[0049] 1) Install the workpiece on the workpiece seat 200, write the corresponding polishing program according to the optical surface required by the workpiece, and each driving device operates according to the preset program; specifically, the X-axis driving device 300 can drive the Z-axis driving device 500, the swinging device 600, the first rotating device 710, and the workpiece seat 200 to move along the X-axis direction, serving as the first-axis movement; the Z-axis driving device 500 can drive the swinging device 600, the first rotating device 710, and the workpiece seat 200 to move along the Z-axis direction, serving as the second-axis movement; the swinging device 600 can drive the first rotating device 710 and the workpiece seat 200 to swing in the Z-axis direction, serving as the third-axis movement; the first rotating device 710 drives the workpiece seat 200 to rotate in the Z-axis direction, serving as the fourth-axis movement; the Y-axis driving device 400 can drive the constant-pressure polishing driving assembly 800 and the second rotating device 720 to move along the Y-axis direction, serving as the fifth-axis movement; the second rotating device 720 can drive the polishing pen 840 to rotate along the X-axis direction, serving as the sixth-axis movement; the constant-pressure polishing driving assembly 800 drives the second rotating device 72 and the polishing pen 840 to polish the workpiece, and the polishing of the workpiece is achieved through the cooperation of the linear movements of the X, Y, and Z axes, the swinging movement in the Z-axis direction, the rotating movement in the Z-axis direction, and the rotating movement in the X-axis direction.

[0050] 2) In one embodiment, the constant-pressure polishing driving assembly 800 includes a sliding assembly 810, a frictionless cylinder 820, and an L-shaped connecting rod 830. The frictionless cylinder 820 is installed on the moving end of the Y-axis driving device 400 and is connected to one end of the L-shaped connecting rod 830. The other end of the L-shaped connecting rod 830 and the second rotating device 720 are connected to the moving end of the sliding assembly 810. The fixed end of the sliding assembly 810 is installed on the moving end of the Y-axis driving device 400, and the sliding assembly 810 is arranged along the Z-axis direction;

[0051] Specifically, the reciprocating motion of the frictionless cylinder 820 drives the movable end of the sliding assembly 810 to move in the Z-axis direction relative to the fixed end of the sliding assembly 810. In a preferred embodiment, the sliding assembly 810 is arranged as an air-floating seat; thereby driving the polishing pen 840 to polish the workpiece; the frictionless cylinder 820 controls the polishing pressure, and the air-floating seat serves as a guiding rail to reduce friction and achieve more accurate pressure control with higher precision; in one embodiment, when the frictionless cylinder 820 controls the air-floating seat to be in the middle floating position, it can be used to process workpieces with discontinuous machining surfaces (such as workpieces with through holes), which can provide a certain movement gap to avoid tool collision; in one embodiment, when the frictionless cylinder 820 controls the air-floating seat to be in the position of the maximum stroke, it can be used to process workpieces with continuous machining surfaces and polish them according to a predetermined trajectory.

[0052] In a further embodiment, it further includes an L-shaped fixed seat 850 arranged on the frame 100 along the Y-axis direction. The Y-axis driving device 400 is installed on the L-shaped fixed seat 850. The L-shaped connecting rod 830 is arranged along the X-axis direction, with one end extending below the L-shaped fixed seat 850 and the other end extending to one side of the L-shaped fixed seat 850; the first arm of the L-shaped fixed seat 850 is arranged along the Z-axis direction, and the second arm is arranged along the Y-axis direction. The Y-axis driving device 400 is installed on the second arm of the L-shaped fixed seat 850, and the second arm of the L-shaped fixed seat 850 extends outward relative to the frame 10. While avoiding the X-axis driving device 300 and the Z-axis driving device 500, it enables the polishing pen 840 of the constant-pressure polishing driving assembly 800 to face the workpiece; and the first arm of the L-shaped connecting rod 830 is located below the second arm of the L-shaped fixed seat 850 and is arranged along the Z-axis direction, and the second arm of the L-shaped connecting rod 830 is arranged along the X-axis direction, and its connection point with the frictionless cylinder 820 is located outside the second arm of the L-shaped fixed seat 850.

[0053] 3) In another embodiment, a precision six-axis optical surface constant-pressure polishing machine tool further includes a fine-tuning seat 900 connected between the moving end of the Y-axis driving device 400 and the fixed end of the sliding assembly 810, which is used to adjust the angles of the polishing pen 840 in the Z-axis direction and the Y-axis direction; this setting can further increase the motion dimensions of the polishing machine tool, enabling the workpiece to have 4-axis motion, and the polishing pen 840 also has 2-axis motion and 2-axis fine-tuning - the linear motion of the Y-axis driving device 400, the angle adjustment in the Z-axis direction, the angle adjustment in the Y-axis direction, and the rotational motion in the X-axis direction.

[0054] 4) As a preferred embodiment of the fine-tuning seat 900, the fine-tuning seat 900 includes a mounting seat 910, a first movable seat 920, a second movable seat 930, a first driving component 940, and a second driving component 950;

[0055] The mounting base 910 is installed on the moving end of the Y-axis driving device 400;

[0056] The first movable seat 920 is installed on the mounting base 910;

[0057] The second movable seat 930 is installed on the first movable seat 920, and the fixed end of the sliding assembly 810 is installed on the side of the second movable seat 930 facing away from the first movable seat 920;

[0058] The first driving assembly 940 is connected between the mounting base 910 and the first movable seat 920, and is used to drive the first movable seat 920 to rotate relative to the mounting base 910 in the Y-axis direction;

[0059] The second driving assembly 950 is connected between the second movable seat 930 and the first movable seat 920, and is used to drive the second movable seat 930 to rotate relative to the first movable seat 920 in the Z-axis direction;

[0060] Specifically, when the first driving assembly 940 acts, it will drive the first movable seat 920 to rotate relative to the mounting base 910 in the Y-axis direction, and then drive the second movable seat 930, the sliding assembly 810 connected to the second movable seat 930, and the polishing pen 840 connected to the sliding assembly 810 to rotate simultaneously in the Y-axis direction, realizing the angle adjustment of the polishing pen 840 in the Y-axis direction; when the second driving assembly 950 acts, it will drive the second movable seat 930 to rotate relative to the first movable seat 920 in the Z-axis direction, and then drive the sliding assembly 810 connected to the second movable seat 930 and the polishing pen 840 connected to the sliding assembly 810 to rotate simultaneously in the Z-axis direction, realizing the angle adjustment of the polishing pen 840 in the Z-axis direction. Cooperating with the linear movement of the polishing pen 840 in the Y-axis direction and the multi-axis movement of the workpiece, the polishing of the workpiece can be better realized.

[0061] 5) As a preferred embodiment of the first driving assembly 940, the first driving assembly 940 includes a first arc convex portion 941, a first arc groove 942, and a first adjusting assembly 943; the first arc convex portion 941 is arranged on the mounting base 910 and arranged along the Y-axis direction; the first arc groove 942 is arranged on the side of the first movable seat 920 close to the mounting base 910 and fits with the first arc convex portion 941; the first adjusting assembly 943 is connected between the mounting base 910 and the first movable seat 920, and the first adjusting assembly 943 can drive the first movable seat 920 to move relative to the mounting base 910 along the arc trajectory of the first arc convex portion 941 and the first arc groove 942 when it acts.

[0062] The second driving component 950 includes a second arc-shaped convex portion 951, a second arc-shaped groove 952, and a second adjusting component 953; the second arc-shaped convex portion 951 is arranged on the first movable seat 920 and arranged along the Z-axis direction; the second arc-shaped groove 952 is arranged on the side of the second movable seat 930 close to the mounting seat 910 and fits with the second arc-shaped convex portion 951; the second adjusting component 953 is connected between the second movable seat 930 and the first movable seat 920, and the second adjusting component 953 can drive the second movable seat 930 to move relative to the first movable seat 920 along the arc track of the second arc-shaped convex portion 951 and the second arc-shaped groove 952 during operation; it should be noted that the first adjusting component 943 and the second adjusting component 953 can adopt any implementable structure and can be manual or electric.

[0063] 6) The advantages of the present utility model are as follows: Through the above structure, not only can multi-dimensional movement be achieved, but also the layout of the movement mechanisms of each axis can be optimized, and the polishing requirements for different workpieces can be realized.

[0064] Of course, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An optical surface constant pressure polishing drive assembly, characterized in that: The invention comprises a sliding assembly (810), a cylinder (820) and an L-shaped connecting rod (830), wherein the cylinder (820) is mounted on the moving end of the Y-axis driving device (400) and connected to one end of the L-shaped connecting rod (830), the other end of the L-shaped connecting rod (830) and a second rotating device (720) are connected to the movable end of the sliding assembly (810), the fixed end of the sliding assembly (810) is mounted on the moving end of the Y-axis driving device (400), and the sliding assembly (810) is arranged along the Z-axis direction; It also includes a fine-tuning seat (900) connected between the moving end of the Y-axis driving device (400) and the fixed end of the sliding assembly (810), which is used to adjust the angle of the polishing pen (840) in the Z-axis direction and the Y-axis direction.

2. An optical surface constant pressure polishing drive assembly according to claim 1, characterized in that: It also includes an L-shaped fixing seat (850) arranged on the frame (100) and arranged along the Y-axis direction, the Y-axis driving device (400) is installed on the L-shaped fixing seat (850), and the L-shaped connecting rod (830) is arranged along the X-axis direction and has one end extending to the bottom of the L-shaped fixing seat (850) and the other end extending to one side of the L-shaped fixing seat (850).

3. The optical surface constant pressure polishing drive assembly according to claim 1, characterized in that: It also includes a second rotating device (720) installed on the polishing drive assembly (800) and arranged along the X-axis direction, which is used to drive its rotating end to rotate around the X-axis. The polishing pen (840) is installed on the second rotating device (720).

4. The optical surface constant pressure polishing drive assembly according to claim 1, characterized in that: The sliding assembly (810) is configured as an air floating seat.

5. The optical surface constant pressure polishing drive assembly according to claim 1, characterized in that: The fine-tuning seat (900) comprises a mounting seat (910), a first movable seat (920), a second movable seat (930), a first driving assembly (940) and a second driving assembly (950); The mounting seat (910) is mounted on the moving end of the Y-axis driving device (400); The first movable seat (920) is installed on the mounting seat (910); The second movable seat (930) is mounted on the first movable seat (920), and the fixed end of the sliding assembly (810) is mounted on a side of the second movable seat (930) facing away from the first movable seat (920); The first driving assembly (940) is connected between the mounting seat (910) and the first movable seat (920), and is used to drive the first movable seat (920) to rotate relative to the mounting seat (910) along the Y-axis direction; The second driving assembly (950) is connected between the second movable seat (930) and the first movable seat (920), and is used to drive the second movable seat (930) to rotate relative to the first movable seat (920) along the Z-axis direction.

6. The optical surface constant pressure polishing drive assembly according to claim 5, characterized in that: The first driving assembly (940) comprises a first arc-shaped convex portion (941), a first arc-shaped groove (942) and a first adjusting assembly (943); The first arc-shaped convex portion (941) is disposed on the mounting seat (910) and arranged along the Y-axis direction; The first arc-shaped groove (942) is arranged on a side of the first movable seat (920) close to the mounting seat (910) and is in contact with the first arc-shaped protrusion (941); The first adjustment component (943) is connected between the mounting seat (910) and the first movable seat (920). When in operation, the first adjustment component (943) can drive the first movable seat (920) to move relative to the mounting seat (910) along the arc-shaped trajectory of the first arc-shaped protrusion (941) and the first arc-shaped groove (942).

7. The optical surface constant pressure polishing drive assembly according to claim 5, characterized in that: The second driving component (950) comprises a second arc-shaped protrusion (951), a second arc-shaped groove (952) and a second adjustment component (953); The second arc-shaped convex portion (951) is disposed on the first movable seat (920) and arranged along the Z-axis direction; The second arc-shaped groove (952) is arranged on a side of the second movable seat (930) close to the mounting seat (910) and is in contact with the second arc-shaped protrusion (951); The second adjustment component (953) is connected between the second movable seat (930) and the first movable seat (920). When the second adjustment component (953) is in operation, it can drive the second movable seat (930) to move relative to the first movable seat (920) along the arc trajectory of the second arc-shaped protrusion (951) and the second arc-shaped groove (952).

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