Grinding wheel dressing mechanism of high-speed plane pre-grinding machine

Abstract

The utility model relates to the technical field of high-speed plane pre-grinding machines, in particular to a grinding wheel dressing mechanism of a high-speed plane pre-grinding machine, which comprises a supporting column, a cross beam is mounted at the top of the supporting column, a sliding rod is mounted at the bottom of one end, far away from the supporting column, of the cross beam, a sliding seat is sleeved on the sliding rod, and the sliding seat is mounted at the top of an inner core. The inner core is installed on the outer sleeve through a bearing, the bottom of the outer sleeve is connected with a second gear, the second gear is meshed with a first gear disc on a main shaft of a second driving motor, and the bottom of the inner core is connected with a lifting base. Automatic repair feeding is achieved by setting repair parameters, the dressing rod can swing in a reciprocating mode, the dressing rod can swing on the dressed face of the grinding wheel in a reciprocating mode, and therefore flatness repair of the grinding wheel is rapidly achieved, operation is very easy, and flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of high-speed flat surface pre-grinding machine technology, specifically to a grinding wheel dressing mechanism for a high-speed flat surface pre-grinding machine. Background Technology

[0002] A pre-grinding machine is a grinding machine that uses abrasive-coated or embedded grinding wheels to grind the surface of a workpiece. It is mainly used for grinding high-precision flat surfaces, internal and external cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces, and other profiled surfaces of workpieces. Existing high-speed flat surface pre-grinding machines require dressing during operation, which often necessitates a dressing mechanism. However, existing dressing mechanisms cannot use high-precision lead screw drives to achieve automatic feed in the Z-direction (up and down), nor can they reciprocate the dressing rod while automatically feeding, thus failing to achieve rapid dressing, exhibiting poor flexibility, and being inconvenient to use. Therefore, a grinding wheel dressing mechanism for a high-speed flat surface pre-grinding machine is provided. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a grinding wheel dressing mechanism for a high-speed surface pre-grinding machine, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a grinding wheel dressing mechanism for a high-speed surface pre-grinding machine, comprising a support column, a crossbeam mounted on the top of the support column, a slide rod mounted on the bottom of the crossbeam at the end away from the support column, a slide seat fitted on the slide rod, the slide seat mounted on the top of an inner core for driving the inner core to move up and down along the slide rod, the inner core mounted on an outer sleeve via bearings, a second gear connected to the bottom of the outer sleeve, the second gear meshing with a first gear disc on the main shaft of a second drive motor, a lifting seat connected to the bottom of the inner core, a slot provided in the middle of the lifting seat and the inner core, a nut mounted on the bottom inner wall of the slot, a lead screw threaded onto the nut, the bottom of the lead screw connected to a first drive motor, a dressing arm mounted on one side of the outer sleeve, a dressing rod mounted on the end of the dressing arm away from the outer sleeve, and a diamond pen mounted on the bottom of the dressing rod.

[0005] In a preferred embodiment of this invention, the trimming arm is bolted to the outer sleeve, and the trimming rod is bolted to the trimming arm.

[0006] In a preferred embodiment of this utility model, the crossbeam is bolted to the top of the support column, the first drive motor is bolted to the frame, and the main shaft of the first drive motor is connected to the lead screw via a coupling.

[0007] As a preferred embodiment of this utility model, the bottom end of the slide rod is fixed to the frame, and the top end of the slide rod is fixed to the crossbeam.

[0008] As a preferred embodiment of this utility model, the second drive motor is mounted on the bottom of the lifting seat by bolts, and the second gear is fixed on the bottom of the outer casing.

[0009] In a preferred embodiment of this invention, both the first drive motor and the second drive motor are electrically connected to the control switch.

[0010] Compared with the prior art, the beneficial effects of this utility model are: this mechanism can realize the automatic up and down movement of the dressing rod, realize automatic repair feed by setting repair parameters, and realize the reciprocating swing of the dressing rod, so that the dressing rod reciprocates on the surface of the grinding wheel being dressed, thereby quickly realizing the flatness repair of the grinding wheel. The operation is very simple and highly flexible. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Support column; 2. Crossbeam; 3. Trimming arm; 4. Trimming rod; 5. Diamond pen; 6. Lead screw; 7. First drive motor; 8. Second drive motor; 9. First gear disc; 10. Coupling; 11. Lifting seat; 12. Nut; 13. Second gear; 14. Inner core; 15. Outer sleeve; 16. Slot; 17. Connecting seat; 18. Slide rod; 19. Bearing. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0014] Example: Please refer to Figure 1This utility model provides a technical solution: a grinding wheel dressing mechanism for a high-speed surface pre-grinding machine, including a support column 1, a crossbeam 2 mounted on the top of the support column 1, a slide rod 18 mounted on the bottom of the crossbeam 2 at the end away from the support column 1, a slide seat 17 sleeved on the slide rod 18, the slide seat 17 mounted on the top of the inner core 14, used to drive the inner core 14 to move up and down along the slide rod 18, the inner core 14 is mounted on the outer sleeve 15 through a bearing 19, the outer sleeve 15 can rotate around the inner core 14 through the bearing 19, the bottom of the outer sleeve 15 is connected to a second gear 13, although the outer sleeve 15 can rotate around the inner core 14 through the bearing 19, it meshes with the first gear disk 9 on the main shaft of the second drive motor 8 through the second gear 13. The outer sleeve 15 is limited to prevent it from rotating automatically. The rotation of the outer sleeve 15 is achieved by the rotation of the first gear disk 9. The bottom of the inner core 14 is connected to the lifting seat 11. The middle of the lifting seat 11 and the inner core 14 is provided with a slot 16. The bottom inner wall of the slot 16 is equipped with a nut 12. The nut 12 is threaded with a lead screw 6. The bottom of the lead screw 6 is connected to the first drive motor 7. The rotation of the lead screw 6 is used to move the nut 12 up and down. A trimming arm 3 is installed on one side of the outer sleeve 15. A trimming rod 4 is installed at the end of the trimming arm 3 away from the outer sleeve 15. A diamond pen 5 is installed at the bottom of the trimming rod 4. The up and down movement of the nut 12 drives the trimming rod 4 and the diamond pen 5 to move up and down.

[0015] The trimming arm 3 is bolted to the outer sleeve 15, and the trimming rod 4 is bolted to the trimming arm 3.

[0016] The crossbeam 2 is bolted to the top of the support column 1, the first drive motor 7 is bolted to the frame, and the main shaft of the first drive motor 7 is connected to the lead screw 6 through the coupling 10.

[0017] The bottom end of the slide bar 18 is fixed to the frame, and the top end of the slide bar 18 is fixed to the crossbeam 2.

[0018] The second drive motor 8 is bolted to the bottom of the lifting seat 11, and the second gear 13 is fixed to the bottom of the outer sleeve 15.

[0019] Both the first drive motor 7 and the second drive motor 8 are electrically connected to the control switch.

[0020] Working principle: The grinding wheel dressing mechanism of a high-speed surface pre-grinding machine is operated by a first drive motor 7 that rotates forward or in reverse to drive the lead screw 6 to rotate. The lead screw 6 rotates around the bearing, causing the nut 12 to move on the lead screw 6. As the nut 12 moves up and down, it drives the lifting seat 11, the inner core 14 on the lifting seat 11, the outer sleeve 15 connected to the inner core 14, and the dressing arm 3 mounted on the outer sleeve 15 to move up and down, thereby realizing the up and down movement of the diamond pen 5. It adopts high-precision lead screw transmission and can automatically feed in the Z direction (up and down); the feed step is 0.005mm.

[0021] A grinding wheel dressing rod 4 is mounted on the extended dressing arm 3. The dressing rod 4 is perpendicular to the working surface of the grinding wheel and is equipped with a diamond grinding wheel dressing pen. When the dressing pen descends and contacts the surface of the grinding wheel to be dressed, this position is set to "0". The dressing thickness is then set to 0.05mm. At this time, the second drive motor 8 rotates in both directions, thereby driving the first gear disk 9 to rotate. The rotation of the first gear disk 9 drives the second gear 13 to rotate. The second gear 13 is fixedly connected to the outer sleeve 15. The second gear 13 drives the outer sleeve 15 and the bearing 19 installed on the inner wall of the outer sleeve 15 to rotate around the inner core 14. The outer sleeve 15 rotates clockwise or counterclockwise, thereby driving the dressing arm 3 to rotate, achieving left and right swinging. The swing range is a constant angle range. The dressing arm 3 swings back and forth on the surface of the grinding wheel to be dressed, thereby achieving the flatness restoration of the grinding wheel.

[0022] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A grinding wheel dressing mechanism for a high-speed surface pre-grinding machine, comprising a support column (1), characterized in that: A crossbeam (2) is installed on the top of the support column (1). A slide rod (18) is installed at the bottom of the crossbeam (2) at the end away from the support column (1). A slide seat (17) is fitted on the slide rod (18). The slide seat (17) is installed on the top of the inner core (14) to drive the inner core (14) to move up and down along the slide rod (18). The inner core (14) is installed on the outer sleeve (15) through a bearing (19). A second gear (13) is connected to the bottom of the outer sleeve (15). The second gear (13) is connected to the first gear disc on the main shaft of the second drive motor (8). 9) Engagement, the bottom of the inner core (14) is connected to a lifting seat (11), the middle of the lifting seat (11) and the inner core (14) is provided with a slot (16), a nut (12) is installed on the bottom inner wall of the slot (16), a screw (6) is threaded on the nut (12), the bottom of the screw (6) is connected to the first drive motor (7), a trimming arm (3) is installed on one side of the outer sleeve (15), a trimming rod (4) is installed at the end of the trimming arm (3) away from the outer sleeve (15), and a diamond pen (5) is installed at the bottom of the trimming rod (4).

2. The grinding wheel dressing mechanism of the high-speed surface pre-grinding machine according to claim 1, characterized in that: The trimming arm (3) is bolted to the outer sleeve (15), and the trimming rod (4) is bolted to the trimming arm (3).

3. The grinding wheel dressing mechanism of the high-speed surface pre-grinding machine according to claim 1, characterized in that: The crossbeam (2) is bolted to the top of the support column (1), the first drive motor (7) is bolted to the frame, and the main shaft of the first drive motor (7) is connected to the lead screw (6) through a coupling (10).

4. The grinding wheel dressing mechanism of the high-speed surface pre-grinding machine according to claim 1, characterized in that: The bottom end of the slide bar (18) is fixed to the frame, and the top end of the slide bar (18) is fixed to the crossbeam (2).

5. The grinding wheel dressing mechanism of the high-speed surface pre-grinding machine according to claim 1, characterized in that: The second drive motor (8) is bolted to the bottom of the lifting seat (11), and the second gear (13) is fixed to the bottom of the outer sleeve (15).

6. The grinding wheel dressing mechanism of the high-speed surface pre-grinding machine according to claim 1, characterized in that: Both the first drive motor (7) and the second drive motor (8) are electrically connected to the control switch.

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