Grinding machine capable of monitoring grinding wheel contour through image

Abstract

The invention relates to the technical field of grinding machines, in particular to a grinding machine capable of monitoring the contour of a grinding wheel through images. The front end and the rear end of the machine base are provided with a workbench and an upper machine frame respectively, the grinding assembly is arranged on the upper machine frame through a Z-axis driving assembly, the image shooting mechanism comprises a three-axis displacement assembly and an image shooting assembly, and the image shooting assembly is arranged on the side portion of the upper machine frame through the three-axis displacement assembly. The image shooting mechanism is connected with an external control system; the three-axis displacement assembly can drive the image shooting device to perform three-axis reciprocating motion, so that a to-be-processed product and a grinding wheel contour can be respectively shot before and after product processing, projected and uploaded to an external control system for comparison, and then specific parameters of the processed product and the grinding wheel contour can be accurately and intuitively obtained; and the machining precision is high, the yield is increased, the automation degree is high, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machines, and in particular to a grinding machine for monitoring the profile of a grinding wheel using an image. Background Art

[0002] An optical projection grinder is a machine tool that uses a grinding wheel to grind the surface of a product and is equipped with an optical projection device. The optical projection device on an existing optical projection grinder consists of a display screen and an image capture component, wherein the image capture component is fixed on one side of the workbench and is used to capture the grinding process of the processed product and accurately project its image onto the display screen. The staff uses a convex lens mounted on the display screen that can be moved up, down, left, and right to enlarge and observe the projected image, thereby improving the control over the accuracy of workpiece processing.

[0003] In actual application, the above-mentioned existing optical projection grinder cannot accurately monitor the contour accuracy of the grinding wheel because its image capture component is fixed on one side of the workbench. The staff needs to rely on experience to judge whether the contour accuracy of the grinding wheel meets the standard. The accuracy of this judgment method is low. The contour accuracy of the grinding wheel will directly affect whether the processing accuracy, smoothness and other parameters of the processed product are qualified. This will lead to a significant reduction in the yield rate of the product and even the problem of batch scrapping of products, which not only reduces the processing efficiency but also increases the processing cost. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a grinding machine for monitoring the grinding wheel profile by image.

[0005] The technical solution of the present invention is:

[0006] The invention provides a grinding machine for monitoring the profile of a grinding wheel by an image, comprising a machine base, a workbench, an upper frame, a grinding component and an image shooting mechanism; the front end and the rear end of the machine base are respectively provided with a workbench and an upper frame, the grinding component is arranged on the upper frame through a Z-axis driving component, the image shooting mechanism comprises a three-axis displacement component and an image shooting component, the image shooting component is arranged on the side of the upper frame through the three-axis displacement component, and the image shooting mechanism is connected to an external control system.

[0007] Furthermore, the three-axis displacement assembly is composed of a Z-axis linear module, a Y-axis linear module and an X-axis linear module. The Z-axis linear module is vertically arranged on the side of the upper frame, the Y-axis linear module is transversely arranged on the working end of the Z-axis linear module, the X-axis linear module is transversely arranged on the working end of the Y-axis linear module, and an image capture assembly is provided on the working end of the X-axis linear module.

[0008] Furthermore, the image capture assembly consists of an image capture device and a protector, the image capture device is arranged on the working end of the X-axis linear module, the working end of the image capture device faces the workbench, and the protector is arranged on the working end of the image capture device.

[0009] Furthermore, the protector includes a mounting seat, a protective plate and a first driving device; the mounting seat is arranged on the working end of the image capture device, a protective groove is horizontally opened on the mounting seat, a shooting hole is opened on the bottom surface of the protective groove, a protective plate is movably arranged in the protective groove, the first driving device is arranged on the side of the image capture device, and the working end of the first driving device is connected to the protective plate.

[0010] Furthermore, the workbench includes a sliding seat, a Y-axis drive assembly, a processing table and an X-axis drive assembly; the sliding seat is arranged on the machine base through the Y-axis drive assembly, the processing table is arranged on the sliding seat through the X-axis drive assembly, and a tooling fixture is provided on the processing table.

[0011] Furthermore, the grinding assembly includes a lifting seat, a grinding wheel shaft, a grinding wheel and a second driving device; the lifting seat is arranged on the upper frame through the Z-axis driving assembly, and a grinding wheel shaft is fixed on the lifting seat. The front end of the grinding wheel shaft is rotatably connected to the grinding wheel, and the rear end of the grinding wheel shaft is connected to the second driving device arranged in the upper frame.

[0012] Furthermore, the X-axis drive assembly, the Y-axis drive assembly and the Z-axis drive assembly are all covered with dustproof folding cloths.

[0013] The beneficial effects achieved by the present invention are:

[0014] The present invention provides a grinding machine for monitoring the grinding wheel profile by image, which can drive the image capture device to perform three-axis reciprocating movement through a three-axis displacement component, so as to be convenient for respectively photographing the product to be processed and the grinding wheel profile before and after product processing and projecting and uploading them to an external control system for comparison, thereby being able to accurately and intuitively obtain the specific parameters of the processed product and the grinding wheel profile, which not only has high processing accuracy and improved yield rate, but also has a high degree of automation, greatly improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 yes Figure 1 Enlarged view of point A.

[0017] Figure 3 It is a three-dimensional schematic diagram of the image capturing mechanism.

[0018] Figure 4 yes Figure 3 Enlarged view of point B. DETAILED DESCRIPTION

[0019] To facilitate those skilled in the art to understand the present invention, the specific embodiments of the present invention are clearly described below in conjunction with the accompanying drawings. Obviously, the described specific embodiments are only preferred embodiments of the present invention, rather than all embodiments.

[0020] like Figure 1-4 As shown, a grinding machine for image monitoring of grinding wheel profile provided by the present invention comprises a machine base 1, a workbench 2, an upper frame 3, a grinding assembly 4 and an image shooting mechanism 5; the front end and rear end of the machine base 1 are respectively provided with a workbench 2 and an upper frame 3, the grinding assembly 4 is arranged on the front side of the upper frame 3 through a Z-axis driving assembly, the image shooting mechanism 5 comprises a three-axis displacement assembly 51 and an image shooting assembly 52, the image shooting assembly 52 is arranged on the side of the upper frame 3 through the three-axis displacement assembly 51, and the image shooting mechanism 5 is electrically connected to an external control system.

[0021] The external control system in this embodiment is preferably a computer, which is convenient for the staff to observe the processing process and processing status intuitively and accurately.

[0022] The three-axis displacement assembly 51 is composed of a Z-axis linear module 511, a Y-axis linear module 512 and an X-axis linear module 513. The Z-axis linear module 511 is fixedly mounted on the side of the upper frame 3 by vertical bolts, the Y-axis linear module 512 is fixedly mounted on the working end of the Z-axis linear module 511 by horizontal bolts, the X-axis linear module 513 is fixedly mounted on the working end of the Y-axis linear module 512 by horizontal bolts, and the image capturing assembly 52 is fixedly mounted on the working end of the X-axis linear module 513 by bolts. The image capturing assembly is driven to perform three-axis reciprocating motion by the three-axis displacement assembly, so as to facilitate the shooting and projection of the products and grinding wheels being processed on the workbench.

[0023] The image capture assembly 52 consists of an image capture device 521 and a protector 522 for protecting the image capture device 521. The image capture device 521 is fixed to the working end of the X-axis linear module 513 by means of bottom plate bolts. The working end of the image capture device 521 faces the workbench 2, and the protector 522 is arranged on the working end of the image capture device 521. When the image capture device 521 captures and projects the product and the grinding wheel being processed on the workbench, the protector 522 is in an open state. After the image capture device 521 completes the capture and projection, the protector is in a closed state, thereby protecting the working end of the image capture device 521 without interfering with it.

[0024] The protector 522 includes a mounting seat 5221, a protective plate 5222 and a first driving device 5223; the mounting seat 5221 is bolted to the working end of the image capture device 521, a protective groove is horizontally opened on the mounting seat 5221, a shooting hole is opened on the bottom surface of the protective groove, a protective plate 5222 is movably arranged in the protective groove, the first driving device 5223 is fixed to the side of the image capture device 521 by a bracket bolt, the working end of the first driving device 5223 is bolted to the protective plate 5222, and the first driving device is preferably a cylinder; the protective plate is driven to open or close the shooting hole by the first driving device.

[0025] The workbench 2 includes a sliding seat 21, a Y-axis driving assembly 22, a processing table 23 and an X-axis driving assembly 24; the sliding seat 21 is arranged on the machine base 1 through the Y-axis driving assembly 22, and the processing table 23 is arranged on the sliding seat 21 through the X-axis driving assembly 24. The processing table 23 is provided with a fixture for fixing the processed product, which in this embodiment includes but is not limited to an electromagnetic suction cup, a clamp, etc.

[0026] The grinding assembly 4 includes a lifting seat 41, a grinding wheel shaft 42, a grinding wheel 43 and a second driving device; the lifting seat 41 is arranged on the front side of the upper frame 3 through the Z-axis driving assembly, and a grinding wheel shaft 42 is fixed on the lifting seat 41. The front end of the grinding wheel shaft 42 is rotatably connected to the grinding wheel 43, and the rear end of the grinding wheel shaft 42 is drivingly connected to the output end of the second driving device arranged in the upper frame 3. The second driving device in this embodiment is preferably a motor; the grinding assembly and the workbench cooperate with each other to realize three-axis precision machining.

[0027] The X-axis driving assembly 24, the Y-axis driving assembly 22 and the Z-axis driving assembly are all covered with dustproof folding cloths; specifically, the dustproof folding cloths can be stretched or contracted as the sliding seat 2 moves, maintaining airtightness and preventing dust from entering the interior and affecting its accuracy.

[0028] The Y-axis driving assembly 22 is composed of a slide rail, a servo motor and a ball screw; the slide rail is longitudinally bolted to the machine base 1 and is slidably connected to the sliding seat 21, the ball screw is bolted to the machine base 1 and its working end is fixedly connected to the bottom surface of the sliding seat 21, and the servo motor is bolted to the machine base 1 and its output end is drive-connected to the ball screw; the function of Y-axis movement is realized.

[0029] The X-axis driving assembly 24 and the Z-axis driving assembly have the same structure as the Y-axis driving assembly 22 , except for the different installation positions and directions, so they will not be described again.

[0030] The bottom surface of the base 1 is provided with a plurality of adjustable brackets to improve adaptability.

[0031] Working principle: First, install the product or workpiece to be processed in the fixture on the processing table. The external control system drives the image camera to move to the appropriate position along the X, Y, and Z linear modules through the three-axis displacement component and respectively shoot the product to be processed and the contour of the grinding wheel. After shooting, the image is projected and uploaded to the external control system. The image camera is reset and displaced to a safe stop point along the X, Y, and Z linear modules, and the grinder can start grinding the product to be processed.

[0032] When the product is processed, the external control system drives the image capture device to move to the appropriate position along the X, Y, and Z linear modules through the three-axis displacement component and respectively captures the processed product and the processed grinding wheel contour. After the capture is completed, the image is projected and uploaded to the external control system. The external control uses the comparison software to compare the images taken before and after processing, and can obtain the specific parameters of the product and grinding wheel contour, thereby more intuitively and accurately reminding the staff whether the product meets the processing requirements and whether the grinding wheel contour accuracy can continue to be processed.

[0033] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A grinding machine for monitoring the grinding wheel profile by image, characterized in that: The invention comprises a machine base (1), a workbench (2), an upper frame (3), a grinding assembly (4) and an image capturing mechanism (5); the workbench (2) and the upper frame (3) are respectively provided at the front and rear ends of the machine base (1); the grinding assembly (4) is arranged on the upper frame (3) via a Z-axis driving assembly; the image capturing mechanism (5) comprises a three-axis displacement assembly (51) and an image capturing assembly (52); the image capturing assembly (52) is arranged on the side of the upper frame (3) via the three-axis displacement assembly (51); and the image capturing mechanism (5) is connected to an external control system.

2. A grinding machine for monitoring grinding wheel profile by image according to claim 1, characterized in that: The three-axis displacement assembly (51) is composed of a Z-axis linear module (511), a Y-axis linear module (512) and an X-axis linear module (513); the Z-axis linear module (511) is vertically arranged on the side of the upper frame (3); the Y-axis linear module (512) is transversely arranged on the working end of the Z-axis linear module (511); the X-axis linear module (513) is transversely arranged on the working end of the Y-axis linear module (512); and an image capturing assembly (52) is arranged on the working end of the X-axis linear module (513).

3. A grinding machine for monitoring grinding wheel profile by image according to any one of claims 1 to 2, characterized in that: The image capture component (52) is composed of an image capture device (521) and a protector (522); the image capture device (521) is arranged on the working end of the X-axis linear module (513); the working end of the image capture device (521) faces the workbench (2); and the protector (522) is arranged on the working end of the image capture device (521).

4. A grinding machine for monitoring grinding wheel profile by image according to claim 3, characterized in that: The protector (522) comprises a mounting seat (5221), a protective plate (5222) and a first driving device (5223); the mounting seat (5221) is arranged on the working end of the image capture device (521); a protective groove is transversely provided on the mounting seat (5221); a shooting hole is provided on the inner bottom surface of the protective groove; a protective plate (5222) is movably provided in the protective groove; the first driving device (5223) is arranged on the side of the image capture device (521); and the working end of the first driving device (5223) is connected to the protective plate (5222).

5. The grinding machine for monitoring grinding wheel profile by image according to claim 1, characterized in that: The workbench (2) comprises a sliding seat (21), a Y-axis driving assembly (22), a processing table (23) and an X-axis driving assembly (24); the sliding seat (21) is arranged on the machine base (1) via the Y-axis driving assembly (22), the processing table (23) is arranged on the sliding seat (21) via the X-axis driving assembly (24), and a tooling fixture is arranged on the processing table (23).

6. A grinding machine for monitoring grinding wheel profile by image according to claim 1 or 5, characterized in that: The grinding assembly (4) comprises a lifting seat (41), a grinding wheel shaft (42), a grinding wheel (43) and a second driving device; the lifting seat (41) is arranged on the upper frame (3) through a Z-axis driving assembly, a grinding wheel shaft (42) is fixedly arranged on the lifting seat (41), a front end of the grinding wheel shaft (42) is rotatably connected to the grinding wheel (43), and a rear end of the grinding wheel shaft (42) is connected to the second driving device arranged in the upper frame (3).

7. The grinding machine for monitoring the grinding wheel profile by image according to claim 5, characterized in that: The X-axis drive assembly (24), the Y-axis drive assembly (22) and the Z-axis drive assembly are all covered with dustproof folding cloths.

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