A method of mounting a grinding wheel

Abstract

This invention discloses a method for installing grinding wheels on a grinding machine. The method employs an installation structure where the entire lifting device is hoisted by a crane using lifting lugs. The grinding wheel connecting block is aligned with the tapered sleeve connector. Three bolt holes evenly distributed on the grinding wheel connecting block are aligned with three 8mm diameter circular holes on the outer ring of the tapered sleeve connector, and connected with M8 bolts. The crane winch pulls the movable part upwards. When the spring is compressed by 100±5mm, the stop pin is pulled upwards, and the pin head is screwed into the pre-drilled pin hole, fixing the movable part relative to the fixed part. At this point, the lifting wire rope is taut due to the spring force. Bolts are screwed into the two evenly distributed bolt holes on the grinding wheel connecting block, pressing against the grinding wheel spindle. The two nuts are rotated alternately to push the tapered sleeve connector off the spindle, allowing the grinding wheel to be removed. This invention provides a simple and efficient way to replace grinding wheels while protecting the grinding wheel headstock spindle and preventing damage to critical components.

Description

Technical Field

[0001] This invention relates to grinding wheels for CNC roll grinding machines, and more particularly to a method for mounting grinding wheels on grinding machines. Background Technology

[0002] CNC roll grinding machines use grinding wheels as cutting tools to process rolls. During use, the diameter of the grinding wheel continuously decreases. When the diameter falls below the limit value, the grinding wheel must be replaced; otherwise, there will be safety hazards and the grinding accuracy will be affected. Replacing the grinding wheel is a relatively frequent procedure in daily operation.

[0003] When changing the grinding wheel, a lifting device needs to be lifted by an overhead crane. The operator fixes the lifting device to the grinding wheel bushing, and then the grinding wheel is removed by the overhead crane. Because the wire rope connecting the lifting device needs to be pre-tightened, the lifting device is connected to the grinding wheel tapered sleeve during this process. The tapered sleeve is connected to the spindle. If the overhead crane hook is pulled up too much, it may damage the spindle.

[0004] The grinding wheels used in CNC roll grinding machines and the bushings required for installation are quite heavy, making it difficult to change the grinding wheels by manpower alone. Currently, the lifting equipment used poses a risk of damaging the headstock spindle during lifting due to varying skill levels among operators.

[0005] Therefore, a specific installation method needs to be developed to quickly replace the grinding wheel while protecting the spindle from damage. Summary of the Invention

[0006] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a grinding wheel installation method for grinding machines, which is simple and efficient to replace grinding wheels, while protecting the grinding wheel headstock spindle and preventing damage to key components.

[0007] Technical Solution: The present invention provides a method for installing a grinding wheel on a grinding machine, characterized by: employing an installation structure, using lifting lugs to lift the entire lifting device via a crane, aligning the grinding wheel connecting block with the tapered sleeve connector; aligning the three bolt holes evenly distributed on the grinding wheel connecting block with the three 8mm diameter circular holes on the outer ring of the tapered sleeve connector, and connecting them with M8 bolts; the crane winch pulls the movable part upwards, and when the spring is compressed by 100±5mm, the stop pin is pulled upwards, and the pin head is screwed into the reserved pin hole, fixing the movable part and the fixed part relative to each other. At this time, the lifting wire rope is taut due to the spring force; the bolts on the two evenly distributed bolt holes on the grinding wheel connecting block are screwed in, pressing against the grinding wheel spindle, and the two nuts are rotated alternately to push the tapered sleeve connector off the spindle, at which point the grinding wheel is removed.

[0008] The process involves replacing the pre-installed tapered sleeve grinding wheel onto the spreader, installing the grinding wheel via a crane, and then slightly raising the crane hook after installation to unscrew the stop pin, at which point the spreader is reset.

[0009] The installation structure includes a movable part, a fixed part, and a grinding wheel. The movable part is connected to the guide key of the fixed part through a guide sleeve. A pre-reserved pin hole is provided between the upper and lower spring washers of the guide key. The guide sleeve and the spring are stacked between the two spring washers. The guide sleeve is connected to the stop pin. The bottom of the fixed part is connected to the grinding wheel of the grinding machine through a tapered sleeve connector.

[0010] The movable component is equipped with a lifting lug at its top, which is connected to an external traveling mechanism.

[0011] The guide sleeve is provided with a guide keyway, which corresponds to the guide key.

[0012] The guide sleeve is provided with a stop pin groove, and the stop pin is fixed by a pin passing through the stop pin groove and the stop pin.

[0013] The stop pin head is 30mm long, the stop pin head corresponds to the reserved pin hole, and the stop pin handle is 120mm long.

[0014] The tapered sleeve connector has three 8mm diameter round holes on the outer ring and two M8 threaded holes on the inner ring.

[0015] The connecting block of the grinding wheel has three bolt holes corresponding to three round holes with a diameter of 8mm.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention effectively reduces the risk of grinding wheel spindle when changing grinding wheels, protects the spindle from damage, and allows for quick and convenient grinding wheel replacement, reducing the labor intensity of personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the present invention;

[0018] Figure 2 This is a side view of the mounting structure of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the installation structure of the present invention;

[0020] Figure 4 This is a front view schematic diagram of the mounting structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the movable component of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the fastener of the present invention;

[0023] Figure 7This is a schematic diagram of the stop pin of the present invention;

[0024] In the diagram, 1 is the moving part; 2 is the spring; 3 is the stop pin; 4 is the fixed part; 5 is the grinding wheel; 6 is the guide sleeve; 7 is the lifting lug; 8 is the spring washer; 9 is the guide key; 10 is the tapered sleeve connector; 11 is the guide keyway; 12 is the stop pin groove; and 13 is the reserved pin hole. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The grinding wheel mounting structure of this invention includes a movable part 1, a fixed part 4, and a grinding wheel 5. The movable part 1 is connected to the guide key 9 of the fixed part 4 via a guide sleeve 6. A reserved pin hole 13 is provided between the upper and lower spring washers 8 of the guide key 9. The guide sleeve 6 and the spring 2 are stacked between the two spring washers 8. The guide sleeve 6 is connected to the stop pin 3. The bottom of the fixed part 4 is connected to the grinding wheel 5 via a tapered sleeve connector 10. The top of the movable part 1 is provided with a lifting lug 7, which is connected to an external traveling mechanism. The guide sleeve 6 has a guide keyway 11, which corresponds to the guide key 9. The guide sleeve 6 has a stop pin groove 12, through which the stop pin 3 is fixed by a pin passing through the stop pin groove 12 and the stop pin 3. The head of the stop pin 3 is 30mm long, and the head of the stop pin 3 corresponds to the reserved pin hole 13. The handle of the stop pin 3 is 120mm long. The tapered sleeve connector 10 has three 8mm diameter round holes on its outer ring and two M8 threaded holes on its inner ring. The connecting block of the grinding wheel 5 has three bolt holes corresponding to the three 8mm diameter round holes.

[0027] In use, the entire lifting device is lifted by the overhead crane using the lifting lug 7. The grinding wheel connecting block is aligned with the tapered sleeve connector 10. The three bolt holes evenly distributed on the grinding wheel connecting block of the grinding wheel 5 are aligned with the three 8mm diameter round holes on the outer ring of the tapered sleeve connector 10, and connected with M8 bolts. The overhead crane winch pulls the movable part 1 upward. When the spring 2 is compressed by about 100mm, the stop pin 3 is pulled upward, and the pin head is screwed into the reserved pin hole 13. The movable part 1 and the fixed part 4 are fixed relative to each other. At this time, the lifting wire rope is taut due to the force of the spring 2. The bolts on the two evenly distributed bolt holes on the grinding wheel connecting block are screwed in to abut against the grinding wheel spindle. The two nuts are rotated alternately to push the tapered sleeve connector 10 off the spindle. The grinding wheel is then removed. The grinding wheel with the pre-installed tapered sleeve is replaced on the lifting device. The grinding wheel is installed by the overhead crane. After installation, the overhead crane hook is slightly raised, and the stop pin 3 is screwed out. The lifting device is then reset.

Claims

1. A method of mounting a grinding wheel on a grinder, characterized by: The mounting structure includes a movable part (1), a fixed part (4), and a grinding wheel (5). The movable part (1) is connected to the guide key (9) of the fixed part (4) via a guide sleeve (6). A pre-drilled pin hole (13) is provided between the upper and lower spring washers (8) of the guide key (9). The guide sleeve (6) and the spring (2) are stacked between the two spring washers (8). The guide sleeve (6) is connected to the stop pin (3). The bottom of the fixed part (4) is connected to the grinding wheel (5) via a tapered sleeve connector (10). The top of the movable part (1) is provided with a lifting lug (7). The lifting lug (7) is connected to the external traveling mechanism; the guide sleeve (6) is provided with a guide keyway (11), which corresponds to the guide key (9); the guide sleeve (6) is provided with a stop pin groove (12), and the stop pin (3) is fixed by a pin passing through the stop pin groove (12) and the stop pin (3); the tapered sleeve connector (10) has 3 round holes with a diameter of 8mm on the outer ring and 2 M8 threaded holes on the inner ring. Using the lifting lug (7), the entire installation structure is lifted by the crane. The grinding wheel connecting block is aligned with the conical sleeve connector (10). The three bolt holes on the grinding wheel connecting block, which are evenly distributed on the grinding wheel (5), are aligned with the three 8mm diameter round holes on the outer ring of the conical sleeve connector (10) and connected by M8 bolts. The crane winch pulls the movable part (1) upward. When the spring (2) is compressed by 100±5mm, the stop pin (3) is pulled upward. The pin head of the stop pin (3) is screwed into the reserved pin hole (13). The movable part (1) and the fixed part (4) are fixed relative to each other. At this time, the hoisting wire rope is tightened due to the force of the spring (2). The bolts on the two M8 threaded holes evenly distributed on the inner ring of the conical sleeve connector (10) are screwed in to abut against the grinding wheel spindle. The two bolts are rotated alternately to push the conical sleeve connector (10) off the spindle. At this time, the grinding wheel is removed.

2. The grinding machine wheel mounting method according to claim 1, characterized in that: Replace the pre-installed conical sleeve grinding wheel onto the mounting structure. Install the grinding wheel using a crane. After installation, slightly raise the crane hook and unscrew the stop pin (3). At this point, the mounting structure will be reset.

3. The grinding wheel mounting method for a grinding machine according to claim 1, characterized in that: The stop pin (3) has a head length of 30mm, the head of the stop pin (3) corresponds to the reserved pin hole (13), and the handle of the stop pin (3) is 120mm long.

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