Grinding machining tool and machining method for outer arc surface of cambered surface pad of common surface grinding machine

Abstract

The grinding tool comprises a cambered surface base and a threaded rod, a cambered surface steel plate is arranged on the cambered surface base, a groove is formed in the side face of the cambered surface base, the top face of the groove is an arc-shaped face, and the cambered surface base, the top face of the groove and the arc of the cambered surface steel plate are concentric. Side plates are installed on the side faces of the cambered-surface base and the cambered-surface steel plate and fixedly connected with the cambered-surface steel plate, through holes are formed in the bottom ends of the side plates, fixing shafts are installed in the through holes and sleeved with bearings and shaft check rings, the bearings are in sliding connection with the top faces of the grooves, and limiting steel plates are fixed to the sides, in the tangential direction of the cambered surface, of the cambered-surface steel plate. A U-shaped groove with an upward opening is formed in the middle of the limiting steel plate, one end of the threaded rod is clamped in the U-shaped groove, the other end of the threaded rod is connected with a hand crank, the threaded rod is erected on the limiting steel frame, and an inner threaded sleeve is installed between the threaded rod and the limiting steel frame.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding manufacturing, and relates to a grinding tool and a processing method for the outer arc surface of an arc pad of a common surface grinder. Background Art

[0002] Grinding of outer arc surfaces is common in the manufacturing field. When ordinary surface grinders process outer arc surfaces, they usually grind the outer circle of the grinding wheel into the outer arc shape of the workpiece, using the forming method to grind directly. However, since the width of the outer arc surface of some parts exceeds the width of the grinding wheel, it is necessary to replace the grinding wheel several times to grind according to the outer arc shape of the part, which makes the processing process more troublesome. At the same time, due to the repeated replacement of the grinding wheel during the processing, a cutting edge will be formed on the part workpiece, affecting the processing quality. Summary of the invention

[0003] One purpose of the present invention is to provide a grinding tool for the outer arc surface of the arc pad of a common surface grinder, which solves the problem that the processing width of the grinding wheel when processing the arc surface on the existing common surface grinder limits the width of the workpiece to be processed, resulting in large grinding errors of the workpiece.

[0004] Another object of the present invention is to provide a method for grinding the outer arc surface of the arc pad of a common surface grinder.

[0005] The first technical scheme adopted by the present invention is a grinding tool for the outer arc surface of the arc pad of an ordinary surface grinder, comprising an arc base and a threaded rod, a arc steel plate is arranged on the arc base, a recess for clamping the arc pad is arranged on the top surface of the arc steel plate, a groove is arranged on the side surface of the arc base, the top surface of the groove is an arc-shaped surface, the arcs of the arc base, the top surface of the groove and the arc of the arc steel plate are concentric, side plates are installed on the side surface of the arc base and the arc steel plate, the top of the side plate is connected and fixed to the arc steel plate, a through hole is opened at the bottom end of the side plate, a fixed shaft is installed in the through hole, a bearing and a shaft retaining ring are sleeved on the fixed shaft, the bearing is slidably connected to the top surface of the groove, a limiting steel plate is fixed on one side of the arc steel plate along the tangent direction of the arc, a U-shaped groove with an opening upward is opened in the middle of the limiting steel plate, one end of the threaded rod is stuck in the U-shaped groove, a baffle is installed at the end, and a hand crank is connected to the other end, the threaded rod is mounted on a limiting steel frame, and an internal threaded sleeve is installed between the threaded rod and the limiting steel frame.

[0006] Among them, a limit plate is fixed on the side of the side plate, the limit plate and the side plate are fixed by bolt connection, a limit groove is arranged on the fixed shaft, and the limit plate is embedded in the limit groove.

[0007] A protective plate is installed on the top of the U-shaped groove, and the protective plate is fixedly connected to the limiting steel plate by bolts.

[0008] The arc surface base is composed of two steel frames with the same structure. A arc surface steel plate is arranged on each steel frame. The two arc surface steel plates are connected and fixed by a connecting plate. The connecting plate and the limiting steel plate are symmetrically arranged.

[0009] The internal thread sleeve is connected and fixed to the limiting steel frame by screws.

[0010] The second technical solution adopted by the present invention is a grinding method for the outer arc surface of the arc pad of a common surface grinder, comprising the following steps: Step 1, fix the grinding tool of the outer arc surface of the arc pad of the common surface grinder on the grinding machine workbench so that the threaded rod is perpendicular to the movement direction of the workbench; Step 2, clamping the arc surface pad to be processed on the grinding tooling; Step 3, adjust the position of the grinding wheel on the grinder so that the grinding wheel is close to the part of the cambered pad to be ground, then start the grinding wheel and the workbench, the grinding wheel makes a rotary motion, and grinds the outer arc of the cambered pad along the direction of movement of the workbench, and when the grinding result meets the standard, shut down the grinding wheel and the workbench; Step 4, rotate the hand crank, the hand crank drives the threaded rod to move back and forth, and then drives the arc surface steel plate and the arc surface pad to move in a direction perpendicular to the movement direction of the workbench, moves the part of the arc surface pad to be ground to the bottom of the grinding wheel, restarts the grinding wheel and the workbench, grinds the outer arc of the arc surface pad to be processed, and shuts down the grinding wheel and the workbench when the grinding result meets the standard; Step 5, repeat step 4 to complete the grinding process of the entire arc pad.

[0011] In step 1, a grinding tool for the outer arc surface of the arc pad of a common surface grinder is fixed on the grinder workbench, including fixing the arc surface base and the limiting steel frame horizontally on the workbench.

[0012] In step 2, the arc surface pad to be processed is clamped on the grinding tooling, including clamping and fixing the arc surface pad to be processed in the recess on the top surface of the arc surface steel plate.

[0013] The beneficial effect of the present invention is that a curved steel plate is arranged on the curved base, a recess for clamping the curved pad is arranged on the top surface of the curved steel plate, a groove is arranged on the side of the curved base, the top surface of the groove is an arc-shaped surface, the arcs of the curved base, the top surface of the groove and the curved steel plate are concentric, a limiting steel plate is fixed on one side of the curved steel plate along the tangent direction of the curved surface, one end of the threaded rod is clamped in the U-shaped groove of the limiting steel plate, and the threaded rod is driven to drive the curved steel plate to move back and forth, so that the curved steel plate and the curved base move relative to each other, and then the curved pad moves, so that the grinding wheel can grind the outer arc of the curved pad as a whole, thereby solving the influence caused by the width of the outer arc surface of the part exceeding the width of the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure of the grinding tooling for the outer arc surface of the arc pad of a common surface grinder of the present invention; Figure 2 It is a top view of the grinding tooling for the outer arc surface of the arc pad of a common surface grinder of the present invention; Figure 3 yes Figure 1 Middle AA section enlarged view; Figure 4 yes Figure 1 Enlarged view of the middle BB section.

[0015] In the figure, 1. curved pad, 2. curved steel plate, 3. curved base, 4. limiting steel plate, 5. connecting plate, 6. protective plate, 7. limiting steel frame, 8. threaded rod, 9. hand crank, 10. side plate, 11. fixed shaft, 12. limiting plate, 13. bearing, 14. shaft retaining ring, 15. internal threaded sleeve, 16. grinding wheel. DETAILED DESCRIPTION

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1 A grinding tool for the outer arc surface of the arc pad of a common surface grinder, see Figure 1 and Figure 2 , including a curved base 3, a limiting steel frame 7 and a threaded rod 8. A curved steel plate 2 is installed on the curved base 3. A recess for clamping the curved pad 1 is provided on the top surface of the curved steel plate 2. A groove is provided on the side of the curved base 3. The top surface of the groove is an arc-shaped surface. The arcs of the curved base 3, the top surface of the groove and the curved steel plate 2 are concentric. Side panels 10 are installed on the sides of the curved base 3 and the curved steel plate 2. The top of the side panel 10 is fixed to the curved steel plate 2 by bolts.

[0018] See also Figure 3 A through hole is provided at the bottom end of the side plate 10, and a fixed shaft 11 is installed in the through hole. A bearing 13 and a shaft retaining ring 14 are sleeved on the fixed shaft 11, and the bearing 13 is slidably connected to the top surface of the groove. A limiting steel plate 4 is fixed to the arc steel plate 2 along one side of the arc tangent direction, and a U-shaped groove opening upward is provided in the middle of the limiting steel plate 4. One end of the threaded rod 8 is stuck in the U-shaped groove, a baffle is installed at the end, and a hand crank 9 is connected to the other end. The threaded rod 8 is mounted on the limiting steel frame 7, and an internal threaded sleeve 15 is installed between the limiting steel frame 7.

[0019] A limiting plate 12 is fixed to the side of the side plate 10 , and the limiting plate 12 is fixed to the side plate 10 by bolt connection. A limiting groove is provided on the fixed shaft 11 , and the limiting plate 12 is embedded in the limiting groove.

[0020] See also Figure 4 A protective plate 6 is installed on the top of the U-shaped groove, and the protective plate 6 is fixedly connected to the limiting steel plate 4 by bolts.

[0021] Example 2 A grinding tool for the outer arc surface of an arc pad of a common surface grinder includes an arc base 3, a limiting steel frame 7 and a threaded rod 8. The arc base 3 is composed of two steel frames with the same structure, each of which is equipped with a arc steel plate 2. The two arc steel plates 2 are connected and fixed by a connecting plate 5, and the connecting plate 5 and the limiting steel plate 4 are symmetrically arranged.

[0022] A recess for clamping the arc surface pad 1 is provided on the top surface of the arc surface steel plate 2, a groove is provided on the side surface of the arc surface base 3, the top surface of the groove is an arc-shaped surface, the arcs of the arc surface base 3, the top surface of the groove and the arc of the arc surface steel plate 2 are concentric, and side panels 10 are installed on the sides of the arc surface base 3 and the arc surface steel plate 2. The top of the side panel 10 is fixed to the arc surface steel plate 2 by bolts, and a through hole is provided at the bottom end of the side panel 10, a fixed shaft 11 is installed in the through hole, a bearing 13 and a shaft retaining ring 14 are sleeved on the fixed shaft 11, and the bearing 13 is slidably connected to the top surface of the groove.

[0023] A limited steel plate 4 is fixed on one side of the curved steel plate 2 along the tangent direction of the curved surface. A U-shaped groove with an opening upward is opened in the middle of the limited steel plate 4. One end of the threaded rod 8 is stuck in the U-shaped groove, a baffle is installed at the end, and a hand crank 9 is connected to the other end. The threaded rod 8 is mounted on the limited steel frame 7, and an internal threaded sleeve 15 is installed between the threaded rod 8 and the limited steel frame 7. The internal threaded sleeve 15 is connected and fixed to the limited steel frame 7 by screws. A protective plate 6 is installed on the top of the U-shaped groove, and the protective plate 6 is fixedly connected to the limited steel plate 4 by bolts.

[0024] A limiting plate 12 is fixed to the side of the side plate 10 , and the limiting plate 12 is fixed to the side plate 10 by bolt connection. A limiting groove is provided on the fixed shaft 11 , and the limiting plate 12 is embedded in the limiting groove.

[0025] Example 3 A grinding method for the outer arc surface of an arc pad of a common surface grinder comprises the following steps: Step 1, fix the grinding tool of the outer arc surface of the arc pad of the common surface grinder on the grinding machine workbench, including fixing the arc base 3 and the limit steel frame 7 horizontally on the workbench, so that the threaded rod 8 is perpendicular to the movement direction of the workbench; Step 2, clamping the arc surface pad 1 to be processed on the grinding tool, including clamping and fixing the arc surface pad 1 to be processed in the recesses on the top surfaces of the two arc surface steel plates 2; Step 3, adjust the position of the grinding wheel 16 on the grinding machine so that the grinding wheel 16 is close to the part to be ground of the cambered pad 1, then start the grinding wheel and the workbench, the grinding wheel performs a rotary motion, and grinds the outer arc of the cambered pad along the direction of movement of the workbench, and when the grinding result meets the standard, shut down the grinding wheel and the workbench; Step 4, rotating the hand crank 9, the hand crank 9 drives the threaded rod 8 to move back and forth, and then drives the curved steel plate 2 and the curved pad 1 to move in a direction perpendicular to the movement direction of the workbench, moves the part of the curved pad 1 to be ground to the bottom of the grinding wheel, restarts the grinding wheel and the workbench, grinds the part of the outer arc of the curved pad to be processed, and shuts down the grinding wheel and the workbench when the grinding result meets the standard; Step 5, repeat step 4 to complete the grinding process of the entire arc surface pad 1.

Claims

1. The grinding tooling for the outer arc surface of the arc pad of the ordinary surface grinder is characterized by: The invention comprises a curved surface base (3) and a threaded rod (8), wherein a curved surface steel plate (2) is arranged on the curved surface base (3), a recess for clamping a curved surface pad (1) is arranged on the top surface of the curved surface steel plate (2), a groove is arranged on the side surface of the curved surface base (3), the top surface of the groove is an arc-shaped surface, the arcs of the curved surface base (3), the top surface of the groove and the curved surface steel plate (2) are concentric, a side plate (10) is arranged on the side surface of the curved surface base (3) and the curved surface steel plate (2), the top end of the side plate (10) is connected and fixed to the curved surface steel plate (2), a through hole is opened at the bottom end of the side plate (10), a fixed shaft (11) is arranged in the through hole, a bearing (13) and a shaft retaining ring (14) are sleeved on the fixed shaft (11), the bearing (13) is slidably connected to the top surface of the groove, a limiting steel plate (4) is fixed on one side of the curved surface steel plate (2) along the tangent direction of the curved surface, and the limiting steel plate (4) A U-shaped groove with an opening facing upward is provided in the middle, one end of a threaded rod (8) is clamped in the U-shaped groove, a baffle is installed at the end, and a hand crank (9) is connected to the other end. The threaded rod (8) is mounted on a limit steel frame (7), and an internal threaded sleeve (15) is installed between the threaded rod (8) and the limit steel frame (7).

2. The grinding tool for the outer arc surface of the arc pad of a common surface grinder according to claim 1 is characterized in that: A limiting plate (12) is fixed to the side of the side plate (10), the limiting plate (12) and the side plate (10) are connected and fixed by bolts, a limiting groove is provided on the fixed shaft (11), and the limiting plate (12) is embedded in the limiting groove.

3. The grinding tool for the outer arc surface of the arc pad of a common surface grinder according to claim 1, characterized in that: A protective plate (6) is installed on the top of the U-shaped groove, and the protective plate (6) is fixedly connected to the limiting steel plate (4) by bolts.

4. The grinding tool for the outer arc surface of the arc pad of a common surface grinder according to claim 1, characterized in that: The arc surface base (3) is composed of two steel frames of the same structure, each of which is provided with an arc surface steel plate (2), and the two arc surface steel plates (2) are connected and fixed by a connecting plate (5), and the connecting plate (5) and the limiting steel plate (4) are symmetrically arranged.

5. The grinding tool for the outer arc surface of the arc pad of a common surface grinder according to claim 1, characterized in that: The internal thread sleeve (15) is connected and fixed to the limiting steel frame (7) by means of screws.

6. A method for grinding the outer arc surface of an arc pad of a common surface grinder, characterized in that: The following steps are involved: Step 1, fix the grinding tool for the outer arc surface of the arc pad of a common surface grinder on the grinding machine workbench so that the threaded rod (8) is perpendicular to the movement direction of the workbench; Step 2, clamping the arc surface pad (1) to be processed on a grinding tool; Step 3, adjusting the position of the grinding wheel (16) on the grinding machine so that the grinding wheel (16) is in close contact with the part of the cambered pad (1) to be ground, then starting the grinding wheel (16) and the workbench, the grinding wheel (16) performs a rotary motion, and grinds the outer arc of the cambered pad along the direction of motion of the workbench, and when the grinding result meets the standard, shutting down the grinding wheel (16) and the workbench; Step 4, rotating the hand crank (9), the hand crank (9) drives the threaded rod (8) to move back and forth, thereby driving the curved steel plate (2) and the curved pad (1) to move in a direction perpendicular to the movement direction of the workbench, moving the portion of the curved pad (1) to be ground to the bottom of the grinding wheel (16), restarting the grinding wheel (16) and the workbench, grinding the portion of the outer arc of the curved pad to be processed, and shutting down the grinding wheel (16) and the workbench when the grinding result meets the standard; Step 5, repeat step 4 to complete the grinding process of the entire arc surface pad (1).

7. The grinding method of the outer arc surface of the arc pad of a common surface grinder according to claim 6, characterized in that: In the step 1, a grinding tool for the outer arc surface of the arc pad of a common surface grinder is fixed on the grinding machine workbench, including fixing the arc surface base (3) and the limiting steel frame (7) horizontally on the workbench.

8. The grinding method of the outer arc surface of the arc pad of a common surface grinder according to claim 6, characterized in that: In the step 2, the arc surface pad (1) to be processed is clamped on a grinding tool, including clamping and fixing the arc surface pad (1) to be processed in a recess on the top surface of the arc surface steel plate (2).

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