Grinding machine

Abstract

The utility model discloses a grinding machine, and relates to the technical field of machining equipment. The grinding machine comprises a base, a workbench, a Y-axis moving device, a portal frame, an X-axis moving device, a Z-axis moving device, a machine head, a main shaft, a magnetic table dressing assembly and a grinding wheel dressing assembly. The Y-axis moving device and the portal frame are both installed on the base, the workbench is installed on the Y-axis moving device, the X-axis moving device is installed on the front side of the portal frame, the Z-axis moving device is installed on the X-axis moving device, the machine head is installed on the Z-axis moving device, the main shaft is installed on the machine head and arranged in the Z-axis direction, and the lower end of the main shaft is connected with a grinding wheel. The magnetic table dressing assembly comprises a magnetic table dressing grinding wheel, the magnetic table dressing grinding wheel is detachably connected to the side of the machine head, the axis of the magnetic table dressing grinding wheel is arranged in the X-axis direction, the grinding wheel dressing assembly comprises a grinding wheel dressing roller, the grinding wheel dressing roller is arranged on the base and located on the side of the workbench, and the axis of the grinding wheel dressing roller is arranged in the Z-axis direction. The grinding machine can automatically trim the grinding wheel and the magnetic table.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing equipment technical field, especially relates to a grinding machine. BACKGROUND

[0002] Grinding machine is a kind of machine tool that uses grinding tool to grind the surface of workpiece, most grinding machines use high-speed rotating grinding wheel as grinding tool, in the grinding process, the shape of grinding wheel will change, and abrasive grains will gradually blunt, the shape precision of grinding wheel will directly affect the shape precision of workpiece, and the wear of abrasive grains will cause the cutting ability of grinding wheel to decline, and the grinding temperature will also rise;Magnetic table (electromagnetic chuck) is an important component for fixing workpiece, it adsorbs workpiece on the worktable of grinding machine by magnetic force, and the surface of magnetic table will become uneven due to adsorbing iron filings and wear after long-time use, when workpiece is placed on uneven magnetic table for grinding, the flatness error of ground workpiece will increase. Therefore, the grinding wheel and magnetic table of grinding machine need to be trimmed regularly. SUMMARY

[0003] The utility model provides a grinding machine that can automatically trim the grinding wheel and magnetic table.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A grinding machine comprises a base, a worktable, a Y-axis moving device, a gantry, an X-axis moving device, a Z-axis moving device, a machine head, a main shaft, a magnetic table trimming assembly and a grinding wheel trimming assembly;The Y-axis moving device and the gantry are both arranged on the base, the worktable is arranged on the Y-axis moving device, the X-axis moving device is arranged on the front side of the gantry, the Z-axis moving device is arranged on the X-axis moving device, the machine head is arranged on the Z-axis moving device, the main shaft is arranged on the machine head and extends along the Z-axis direction, the lower end of the main shaft extends above the worktable and is coaxially connected with a grinding wheel, the magnetic table trimming assembly comprises a magnetic table trimming grinding wheel, the magnetic table trimming grinding wheel is detachably connected on the side of the machine head, and the axis of the magnetic table trimming grinding wheel extends along the X-axis direction, and the grinding wheel trimming assembly comprises a grinding wheel trimming roller, the grinding wheel trimming roller is arranged on the base and located on the side of the worktable, and the axis of the grinding wheel trimming roller extends along the Z-axis direction and is parallel to the axis of the main shaft.

[0006] Further, the magnetic table trimming assembly further comprises a mounting bracket, a first trimming main shaft and a first main shaft driving motor, the mounting bracket comprises an angle seat and a main shaft clamp arranged integrally, the angle seat is detachably connected on the side of the machine head, the first trimming main shaft is arranged on the main shaft clamp, the magnetic table trimming grinding wheel is coaxially connected on the first trimming main shaft, and the output shaft of the first main shaft driving motor is in transmission connection with the first trimming main shaft.

[0007] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0008] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0009] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0010] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0011] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0012] Further, the grinding wheel dressing assembly further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located beside the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

[0013] Compared with the prior art, the grinding wheel dressing assembly has at least the following beneficial effects:

[0014] In use, this invention allows for the dressing of the magnetic table via a dressing wheel located beside the machine head. Since the dressing wheel is mounted on the machine head, it can coordinate with the worktable to adjust the machining direction. The rotation of the dressing wheel automatically grinds and dresses the magnetic table surface without manual operation, ensuring the accuracy of the magnetic table surface. This guarantees the relative positional accuracy between the workpiece and the grinding wheel when placing the workpiece, ensuring the flatness of the ground workpiece meets requirements. Furthermore, the magnetic table dressing assembly can be removed when not in use. The grinding wheel on the spindle can be dressed via a dressing assembly located beside the worktable. Driven by the X-axis movement device, the machine head approaches the dressing roller, and its rotation automatically grinds and dresses the grinding wheel without manual operation. The dressed grinding wheel provides more uniform and precise grinding, improving workpiece machining quality. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Fig. 2 This is a schematic diagram of the connection structure between the workbench and the base in an embodiment of the present utility model;

[0017] Fig. 3 This is a schematic diagram of the structure of the machine head according to an embodiment of the present utility model;

[0018] Fig. 4 This is a schematic diagram of the structure of the magnetic table trimming assembly according to an embodiment of the present invention.

[0019] The following components are labeled in the diagram: 1. Base; 2. Worktable; 3. Y-axis moving device; 31. First linear slide rail; 32. First lead screw and nut pair; 33. First slide block; 34. First drive motor; 4. Gantry frame; 5. X-axis moving device; 51. Second linear slide rail; 52. Second lead screw and nut pair; 53. Second slide block; 54. Second drive motor; 6. Z-axis moving device; 61. Third linear slide rail; 62. Third lead screw and nut pair; 63. Third drive motor; 7. Machine head; 8. Spindle; 9. Magnetic table dressing assembly; 91. Magnetic table dressing grinding wheel; 92. Mounting bracket; 921. Angle seat; 922. Spindle clamp; 93. First dressing spindle; 10. Grinding wheel dressing assembly; 101. Grinding wheel dressing roller; 102. Second dressing spindle; 20. Nitrogen balance cylinder. Detailed Implementation

[0020] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0021] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" of the second feature includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0022] As Figs. 1-4 shown, one embodiment of the utility model discloses a grinding machine, including base 1, workbench 2, Y axis moving device 3, portal frame 4, X axis moving device 5, Z axis moving device 6, nose 7, main shaft 8, magnetic platform finishing assembly 9 and grinding wheel finishing assembly 10.

[0023] The Y-axis moving device 3 and the gantry 4 are both arranged on the base 1, the workbench 2 is arranged on the Y-axis moving device 3, the X-axis moving device 5 is arranged on the front side of the gantry 4, the Z-axis moving device 6 is arranged on the X-axis moving device 5, the head 7 is arranged on the Z-axis moving device 6, the main shaft 8 is arranged on the head 7 and is arranged along the Z-axis direction, the lower end of the main shaft 8 extends above the workbench 2 and is coaxially connected with a grinding wheel, the magnetic table dressing assembly 9 comprises a magnetic table dressing grinding wheel 91, the magnetic table dressing grinding wheel 91 is detachably connected on the side of the head 7, the axis of the magnetic table dressing grinding wheel 91 is arranged along the X-axis direction, the grinding wheel dressing assembly 10 comprises a grinding wheel dressing roller 101, the grinding wheel dressing roller 101 is provided with granular diamond, the grinding wheel dressing roller 101 is arranged on the base 1 and is located on the side of the workbench 2, the axis of the grinding wheel dressing roller 101 is arranged along the Z-axis direction and is parallel to the axis of the main shaft 8.

[0024] In use, the workbench 2 is driven to move along the Y-axis direction by the Y-axis moving device 3, the main shaft 8 is driven to move along the X-axis and Z-axis directions by the X-axis moving device 5 and the Z-axis moving device 6 respectively, the main shaft 8 cooperates with the workbench 2 to adjust the processing direction, and the grinding wheel on the main shaft 8 can perform grinding processing on the workpiece on the workbench 2; in addition, the magnetic table can be dressed by the magnetic table dressing grinding wheel 91 on the side of the head 7, and the magnetic table dressing grinding wheel 91 can cooperate with the workbench 2 to adjust the processing direction because the magnetic table dressing grinding wheel 91 is arranged on the head 7, the magnetic table dressing grinding wheel 91 can automatically perform grinding dressing on the magnetic table plane by rotating, manual operation is not needed, the precision of the magnetic table plane is ensured, the relative position precision of the workpiece and the grinding wheel can be ensured when the workpiece is placed, the flatness of the ground workpiece meets the requirements, the magnetic table dressing assembly 9 is not used in normal cases, and the magnetic table dressing grinding wheel 91 can be detached.

[0025] In some embodiments, the magnetic table dressing assembly 9 further comprises a mounting frame 92, a first dressing main shaft 93 and a first main shaft driving motor (not shown in the figure), the mounting frame 92 comprises an angle seat 921 and a main shaft clamp 922 arranged integrally, the angle seat 921 is detachably connected on the side of the head 7, the first dressing main shaft 93 is arranged on the main shaft clamp 922, the magnetic table dressing grinding wheel 91 is coaxially connected on the first dressing main shaft 93, and the output shaft of the first main shaft driving motor is in transmission connection with the first dressing main shaft 93.

[0026] In some embodiments, the grinding wheel dressing assembly 10 further comprises a second dressing spindle 102 and a second spindle drive motor (not shown in the figure), the second dressing spindle 102 is installed on the base 1 and located beside the worktable 2, the grinding wheel dressing roller 101 is coaxially connected to the upper end of the second dressing spindle 102, and the output shaft of the second spindle drive motor is in transmission connection with the second dressing spindle 102.

[0027] In some embodiments, the grinding machine further comprises a third spindle drive motor (not shown in the figure), the third spindle drive motor is installed on the head 7, and the output shaft of the third spindle drive motor is in transmission connection with the spindle 8.

[0028] In some embodiments, the grinding machine further comprises a nitrogen balance cylinder 20, the nitrogen balance cylinder 20 is installed on the top of the second sliding seat 53, and the output rod of the nitrogen balance cylinder 20 is connected to the top of the head 7. The nitrogen balance cylinder 20 uses high-pressure nitrogen to control the pressure of the oil cylinder, so that the pressure of the oil cylinder matches the weight of the spindle 8 and other components of the head 7, thereby balancing the weight of the spindle 8 and other components, and also has the effects of compensating for the inertia of motion, reducing the load of the third spindle drive motor, and improving the machining precision.

[0029] The Y-axis moving device 3 comprises a first linear slide rail 31, a first screw-nut pair 32, a first sliding seat 33, and a first drive motor 34. The first linear slide rail 31 and the first screw-nut pair 32 are installed on the base 1 along the Y-axis direction. The bottom surface of the first sliding seat 33 is connected with the slider of the first linear slide rail 31 and also connected with the nut of the first screw-nut pair 32. The worktable 2 is installed on the first sliding seat 33. The output shaft of the first drive motor 34 is in transmission connection with one end of the screw rod of the first screw-nut pair 32. The first drive motor 34 is used to drive the screw rod of the first screw-nut pair 32 to rotate, so as to drive the nut to move on the screw rod along the Y-axis direction, thereby driving the first sliding seat 33 to move along the Y-axis direction.

[0030] The X-axis moving device 5 comprises a second linear slide rail 51, a second screw-nut pair 52, a second sliding seat 53, and a second drive motor 54. The second linear slide rail 51 and the second screw-nut pair 52 are installed on the gantry 4 along the X-axis direction. The rear side of the second sliding seat 53 is connected with the slider of the second linear slide rail 51 and also connected with the nut of the second screw-nut pair 52. The Z-axis moving device 6 is installed on the second sliding seat 53. The output shaft of the second drive motor 54 is in transmission connection with one end of the screw rod of the second screw-nut pair 52. The second drive motor 54 is used to drive the screw rod of the second screw-nut pair 52 to rotate, so as to drive the nut to move on the screw rod along the X-axis direction, thereby driving the second sliding seat 53 to move along the X-axis direction.

[0031] The Z-axis moving device 6 comprises a third linear slide rail 61, a third screw-nut pair 62 and a third driving motor 63. The third linear slide rail 61 and the third screw-nut pair 62 are arranged on the second sliding base 53 along the Z-axis direction. The rear side of the head 7 is connected with the slider of the third linear slide rail 61 and the nut of the third screw-nut pair 62. The output shaft of the third driving motor 63 is in transmission connection with one end of the screw rod of the third screw-nut pair 62. The third driving motor 63 is used to drive the screw rod of the third screw-nut pair 62 to rotate, so as to drive the nut to move along the Z-axis direction on the screw rod, thereby driving the head 7 to move along the Z-axis direction.

[0032] It should be understood that all the above embodiments are exemplary but not restrictive, and any modification, equivalent change and modification made by the skilled in the art to the above described specific embodiments are still within the scope of the technical scheme of the present application.

Claims

1. A grinding machine characterized by: The application relates to a magnetic table dressing device and a grinding wheel dressing device, which are used for dressing a magnetic table and a grinding wheel.

2. The grinding machine according to claim 1, characterized in that: The magnetic table dressing device further comprises a mounting frame, a first dressing spindle and a first spindle driving motor, the mounting frame comprises an angle seat and a spindle clamp which are integrally arranged, the angle seat is detachably connected to the side of the head, the first dressing spindle is arranged on the spindle clamp, the magnetic table dressing grinding wheel is coaxially connected to the first dressing spindle, and the output shaft of the first spindle driving motor is in transmission connection with the first dressing spindle.

3. The grinding machine of claim 1, wherein: The grinding wheel dressing device further comprises a second dressing spindle and a second spindle driving motor, the second dressing spindle is arranged on the base and located at the side of the workbench, the grinding wheel dressing roller is coaxially connected to the upper end of the second dressing spindle, and the output shaft of the second spindle driving motor is in transmission connection with the second dressing spindle.

4. The grinding machine of claim 1, wherein: The application further comprises a third spindle driving motor, the third spindle driving motor is arranged on the head, and the output shaft of the third spindle driving motor is in transmission connection with the main shaft.

5. The grinding machine of claim 1, wherein: The Y-axis moving device comprises a first linear slide rail, a first screw nut pair, a first sliding seat and a first driving motor, the first linear slide rail and the first screw nut pair are arranged on the base along the Y-axis direction, the bottom surface of the first sliding seat is connected with the slider of the first linear slide rail and the nut of the first screw nut pair, the workbench is arranged on the first sliding seat, the output shaft of the first driving motor is in transmission connection with one end of the screw rod of the first screw nut pair, the first driving motor is used for driving the screw rod of the first screw nut pair to rotate, so as to drive the nut to move on the screw rod along the Y-axis direction, thereby driving the first sliding seat to move along the Y-axis direction.

6. The grinding machine of claim 1, wherein: The X-axis moving device comprises a second linear slide rail, a second screw-nut pair, a second sliding base and a second driving motor, the second linear slide rail and the second screw-nut pair are arranged on the portal frame along the X-axis direction, the rear side of the second sliding base is connected with the slider of the second linear slide rail and the nut of the second screw-nut pair, the Z-axis moving device is arranged on the second sliding base, the output shaft of the second driving motor is in transmission connection with one end of the screw rod of the second screw-nut pair, the second driving motor is used to drive the screw rod of the second screw-nut pair to rotate, so as to drive the nut to move on the screw rod along the X-axis direction, thereby driving the second sliding base to move along the X-axis direction.

7. The grinding machine of claim 6, wherein: The Z-axis moving device comprises a third linear slide rail, a third screw-nut pair and a third driving motor, the third linear slide rail and the third screw-nut pair are arranged on the second sliding base along the Z-axis direction, the rear side of the head is connected with the slider of the third linear slide rail and the nut of the third screw-nut pair, the output shaft of the third driving motor is in transmission connection with one end of the screw rod of the third screw-nut pair, the third driving motor is used to drive the screw rod of the third screw-nut pair to rotate, so as to drive the nut to move on the screw rod along the Z-axis direction, thereby driving the head to move along the Z-axis direction.

8. The grinding machine of claim 6, wherein: A nitrogen balance cylinder is further arranged on the top of the second sliding base, and the output rod of the nitrogen balance cylinder is connected with the top of the head.

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