Numerical control four-axis grinding machine tool

Abstract

The utility model provides a numerical control four-axis grinding machine tool. The numerical control four-axis grinding machine tool comprises a machine cabinet and an electric control cabinet arranged on the outer side of the machine cabinet. A machining main shaft used for fixing a machined part and a grinding head arranged on the opposite side of the machining main shaft are arranged in the machine cabinet, a machining main shaft driving unit for driving the machining main shaft to move left and right is arranged below the machining main shaft, and the grinding head is integrally connected with a grinding head work driving unit for driving the grinding head to rotate and conduct grinding operation. A grinding head rotation driving unit for driving the grinding head to rotate in the horizontal direction is arranged below the grinding head, and a grinding head movement driving unit for driving the grinding head rotation driving unit to move front and back is arranged below the grinding head rotation driving unit. When in use, a workpiece is fixed at the front end of the machining main shaft, the grinding head on the opposite side of the machining main shaft is used for grinding the workpiece, the spherical surface and the aspheric surface of the workpiece are ground by the grinding head through the cooperation of multi-shaft driving, and the machining degree of freedom is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of optical processing, in particular to a numerically controlled four-axis grinding machine tool.

Background Art

[0002] With the continuous expansion of the market demand for optical consumer goods such as cameras, video cameras, drones, projectors, etc., and the gradual popularization of liquid crystal displays and touch-screen mobile phones, the optical glass processing industry has been developing day by day.

[0003] As is well known, optical lenses must be measured by optical instruments to check whether their purity, transparency, uniformity, refractive index and dispersion rate meet the specifications. Qualified glass blocks are heated and forged into optical lens blanks. Optical glass substrates usually go through processes such as cutting, rounding, rough grinding, fine grinding, polishing, edge grinding, coating, gluing, and inking. The surface of the optical lens can be processed by grinding to ensure that its surface roughness and topography meet the design requirements, improve the transmittance and performance of optical devices. Through precision grinding, a high-quality lens surface can be obtained, which is beneficial to the adhesion and stability of optical coatings, etc. Grinding processing plays an important role in the lens processing process.

[0004] At present, the operations of grinding machine tools are relatively simple and cannot meet the needs of grinding spherical lenses, aspherical lenses or free-form surface lenses with unconventional shapes. In view of the above problems, the utility model proposes a new technical solution.

Content of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model proposes a numerically controlled four-axis grinding machine tool, and the technical solution adopted is as follows:

[0006] A numerically controlled four-axis grinding machine tool includes a machine cabinet and an electric control cabinet arranged outside the machine cabinet; a processing spindle for fixing a workpiece is arranged inside the machine cabinet, and a grinding head is arranged on the opposite side of the processing spindle. A processing spindle driving unit for driving the processing spindle to move left and right is arranged below the processing spindle. The grinding head is integrally connected with a grinding head working driving unit for driving the grinding head to rotate and perform grinding operations. A grinding head rotation driving unit for driving the grinding head to rotate in the horizontal direction is arranged below the grinding head, and a grinding head moving driving unit for driving the grinding head rotation driving unit to move back and forth is arranged below the grinding head rotation driving unit.

[0007] According to an embodiment of the utility model, a processing surface for adsorbing and fixing a workpiece is arranged at the front end of the processing spindle.

[0008] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, a processing clamp for clamping and fixing a workpiece is provided at the front end of the processing spindle.

[0009] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, the processing spindle driving unit includes a first slide and a first slider disposed on the first slide, and a first driving device for driving the first slider to slide on the first slide, the first slide and the first slider are arranged along the X-axis track direction; the processing spindle is disposed on the first slider.

[0010] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, the grinding head working driving unit includes a grinding shaft and a grinding driving motor, and the grinding head is mounted at the end of the grinding shaft.

[0011] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, the grinding head rotation driving unit includes a rotating base and a rotating platform disposed on the rotating base.

[0012] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, the grinding head moving driving unit includes a second slide and a second slider disposed on the second slide, and a second driving device for driving the second slider to slide on the second slide, the second slide and the second slider are arranged along the Y-axis track direction; the rotating base is disposed on the second slider.

[0013] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, a double-rail fine adjustment platform is provided on the rotating platform, the grinding head working driving unit is fixedly arranged on the double-rail fine adjustment platform, and the double-rail fine adjustment platform can drive the grinding head working driving unit to move and fine-tune in the X-axis and / or Y-axis directions.

[0014] A numerically controlled four-axis grinding machine tool according to an embodiment of the present invention, a fixed frame is provided on the first slider, and the processing spindle is fixed on the fixed frame; a front extension bracket is provided on the fixed frame, and a centering device is provided on the front extension bracket, and the centering device is located above the middle between the processing spindle and the grinding head and aligns with the central axis of the processing spindle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In use, the workpiece to be processed is fixed to the front end of the processing spindle. The grinding head located on the opposite side thereof performs grinding on the workpiece. The working drive unit of the grinding head can drive the grinding head to rotate for grinding. The processing spindle drive unit can drive the processing spindle to move left and right in the X-axis trajectory direction. The grinding head movement drive unit can drive the grinding head to move forward and backward in the Y-axis trajectory direction to approach or move away from the processing spindle. The grinding head rotation drive unit can drive the grinding head to rotate and swing in the plane direction. The present utility model realizes spherical and aspherical grinding of the workpiece by the cooperation of the above multi-axis drives, and has a higher processing freedom.

Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a three-dimensional schematic of an embodiment of the present utility model Figure 1 ;

[0019] Figure 2 is a three-dimensional schematic of an embodiment of the present utility model Figure 2 ;

[0020] Figure 3 is a structural schematic of an embodiment of the present utility model Figure 1 ;

[0021] Figure 4 is a structural schematic of an embodiment of the present utility model Figure 2 ;

[0022] Figure 5 is a structural schematic of an embodiment of the present utility model Figure 3 。

[0023] Main element symbol description:

[0024] 10, cabinet; 20, electric control cabinet; 30, processing spindle; 40, grinding head; 50, first slide; 60, first slider; 70, first driving device; 80, grinding shaft; 90, grinding driving motor; 100, rotating platform; 110, centering device; 120, second slide; 130, second slider; 140, second driving device; 150, double-rail fine-tuning platform; 160, fixed bench; 170, front extension bracket.

Detailed Embodiments

[0025] The embodiments of the present utility model will be described in detail below. The described embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0026] The orientation shown in the drawings should not be construed as limiting the specific scope of protection of the present utility model. It is only for reference and understanding of the preferred embodiments. Changes in the positions of the product components shown in the drawings, increases in the number, or simplification of the structure are possible.

[0027] The "connection" described in the specification and the "connection" relationship between the components shown in the drawings can be understood as fixedly connected, detachably connected, or integrally formed connections; it can be directly connected or connected through an intermediate medium. Those of ordinary skill in the art can understand the connection relationship according to specific circumstances and can obtain different implementation manners such as screwing, riveting, welding, clamping, or embedding for substitution in an appropriate manner.

[0028] For the orientation words such as up, down, left, right, top, bottom, etc. described in the specification and the orientation shown in the drawings, the components can be in direct contact or in contact through other features between them; for example, "above" can be directly above or obliquely above, or it only means higher than other objects; similar understandings can be made for other orientations.

[0029] The manufacturing materials of the components with solid shapes shown in the specification and the drawings can be metal materials, non-metal materials, or other composite materials; for the machining processes of the components with solid shapes, they can be stamping, forging, wire cutting, laser cutting, casting, injection molding, numerical milling, 3D printing, machining, etc.; those of ordinary skill in the art can adaptively select or combine selections according to different processing conditions, costs, and precisions, but are not limited to the above materials and manufacturing processes.

[0030] The present utility model provides a numerically controlled four-axis grinding machine tool, as Figures 1 to 5 shown, which includes a machine cabinet 10 and an electric control cabinet 20 provided outside the machine cabinet 10; a processing spindle 30 for fixing a workpiece is provided inside the machine cabinet 10, and a grinding head 40 is provided on the opposite side of the processing spindle 30. A processing spindle driving unit for driving the processing spindle 30 to move left and right is provided below the processing spindle 30. The grinding head 40 is integrally connected with a grinding head working driving unit for driving the grinding head 40 to perform self-rotation grinding operations. A grinding head rotation driving unit for driving the grinding head 40 to rotate in the horizontal direction is provided below the grinding head 40, and a grinding head moving driving unit for driving the grinding head rotation driving unit to move back and forth is provided below the grinding head rotation driving unit.

[0031] During use, the workpiece to be processed is fixed to the front end of the processing spindle 30. The grinding head 40 located on the opposite side thereof performs grinding on the workpiece. The working drive unit of the grinding head can drive the grinding head 40 to rotate for grinding. The processing spindle drive unit can drive the processing spindle 30 to move left and right in the X-axis trajectory direction. The grinding head movement drive unit can drive the grinding head 40 to move forward and backward in the Y-axis trajectory direction to approach or move away from the processing spindle 30. The grinding head rotation drive unit can drive the grinding head 40 to rotate and swing in the plane direction. The present utility model realizes the need for spherical and aspherical grinding of the workpiece by the grinding head 40 through the cooperation of the above multi-axis drives, and has a higher processing freedom.

[0032] Further, in some embodiments of the present utility model application, a processing surface for adsorbing and fixing the workpiece is provided at the front end of the processing spindle 30, and its front end is a suction cup. Of course, a processing clamp for clamping and fixing the workpiece can also be provided at the front end of the processing spindle 30.

[0033] Further, in some embodiments of the present utility model application, as Figure 3 、 4 、shown in Figure 5, the processing spindle drive unit includes a first slide base 50 and a first slider 60 provided on the first slide base 50, and a first driving device 70 for driving the first slider 60 to slide on the first slide base 50. The first slide base 50 and the first slider 60 are arranged along the X-axis trajectory direction; the processing spindle 30 is arranged on the first slider 60.

[0034] Further, in some embodiments of the present utility model application, as Figure 3 、 4 、shown in Figure 5, the working drive unit of the grinding head includes a grinding shaft 80 and a grinding drive motor 90. The grinding head 40 is installed at the end of the grinding shaft 80.

[0035] Further, in some embodiments of the present utility model application, as Figure 3 、 4 shown in Figure 5, the grinding head rotation drive unit includes a rotating base and a rotating platform 100 provided on the rotating base.

[0036] Further, in some embodiments of the present utility model application, as Figure 3 、 4 、shown in Figure 5, the grinding head movement drive unit includes a second slide base 120 and a second slider 130 provided on the second slide base 120, and a second driving device 140 for driving the second slider 130 to slide on the second slide base 120. The second slide base 120 and the second slider 130 are arranged along the Y-axis trajectory direction; the rotating base is arranged on the second slider 130.

[0037] Further, in some embodiments of the present utility model application, such as Figure 3 , 4 shown, a double-rail fine adjustment platform 150 is provided on the rotary platform 100, the grinding head working drive unit is fixedly arranged on the double-rail fine adjustment platform 150, and the double-rail fine adjustment platform 150 can drive the grinding head working drive unit to move and fine-tune in the X-axis and / or Y-axis directions. In the embodiment, the fine movement of the grinding head working drive unit can be adjusted through the double-rail fine adjustment platform 150, so as to adjust the fine movement of the grinding head 40.

[0038] Further, in some embodiments of the present utility model application, such as Figure 3 , 4 shown, a fixed bench 160 is provided on the first slider 60, and the processing spindle 30 is fixed on the fixed bench 160; a forward extension bracket 170 is provided on the fixed bench 160, and a centering device 110 is provided on the forward extension bracket 170. The centering device 110 is located above the processing spindle 30 and the grinding head 40 and aligns with the central axis of the processing spindle 30. After replacing the grinding head 40, start the centering device 110 for centering detection to check whether the grinding head 40 is installed in place.

[0039] Although the present utility model has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present utility model without departing from the principle and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present utility model, and the scope of protection is defined by the content of the claims.

Claims

1. A CNC four-axis grinding machine tool, characterized in that: The invention comprises a cabinet (10) and an electric control cabinet (20) arranged outside the cabinet (10); a machining spindle (30) for fixing a workpiece is arranged inside the cabinet (10), and a grinding head (40) is arranged on the opposite side of the machining spindle (30); a machining spindle driving unit for driving the machining spindle (30) to move left and right is arranged below the machining spindle (30); a grinding head working driving unit for driving the grinding head (40) to rotate and grind is integrally connected to the grinding head (40); a grinding head rotating driving unit for driving the grinding head (40) to rotate in a horizontal direction is arranged below the grinding head (40); and a grinding head moving driving unit for driving the grinding head rotating driving unit to move forward and backward is arranged below the grinding head rotating driving unit.

2. A CNC four-axis grinding machine tool according to claim 1, characterized in that: The front end of the processing spindle (30) is provided with a processing surface for adsorbing and fixing the processing workpiece.

3. The CNC four-axis grinding machine tool according to claim 1, characterized in that: The front end of the processing spindle (30) is provided with a processing clamp for clamping and fixing the processing workpiece.

4. The CNC four-axis grinding machine tool according to claim 1, characterized in that: The machining spindle drive unit comprises a first slide seat (50), a first slider (60) arranged on the first slide seat (50), and a first drive device (70) for driving the first slider (60) to slide on the first slide seat (50), wherein the first slide seat (50) and the first slider (60) are arranged along the X-axis trajectory direction; the machining spindle (30) is arranged on the first slider (60).

5. The CNC four-axis grinding machine tool according to claim 1, characterized in that: The grinding head working drive unit comprises a grinding shaft (80) and a grinding drive motor (90), and the grinding head (40) is mounted on the end of the grinding shaft (80).

6. The CNC four-axis grinding machine tool according to claim 5, characterized in that: The grinding head rotation driving unit comprises a rotating seat and a rotating platform (100) arranged on the rotating seat.

7. The CNC four-axis grinding machine tool according to claim 6, characterized in that: The grinding head moving driving unit comprises a second slide seat (120) and a second slider (130) arranged on the second slide seat (120), and a second driving device (140) driving the second slider (130) to slide on the second slide seat (120), wherein the second slide seat (120) and the second slider (130) are arranged along the Y-axis trajectory direction; the rotating seat is arranged on the second slider.

8. The CNC four-axis grinding machine tool according to claim 6, characterized in that: A double-track fine-tuning platform (150) is provided on the rotating platform (100), and the grinding head working drive unit is fixedly arranged on the double-track fine-tuning platform (150). The double-track fine-tuning platform (150) can drive the grinding head working drive unit to move and fine-tune in the X-axis and / or Y-axis directions.

9. The CNC four-axis grinding machine tool according to claim 4, characterized in that: A fixed stand (160) is provided on the first sliding block (60), and the machining spindle (30) is fixed on the fixed stand (160); a forward support (170) is provided on the fixed stand (160), and a centering device (110) is provided on the forward support (170); the centering device (110) is located above the machining spindle (30) and the grinding head (40), and is aligned with the central axis of the machining spindle (30).

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