Online automatic grinding tool for conical roller of ring rolling mill

Abstract

The utility model discloses an on-line automatic grinding tool for a conical roller of a ring rolling mill, which relates to the technical field of grinding of conical rollers of ring rolling mills and comprises a supporting mechanism, a grinding mechanism and a horizontal adjusting device. The supporting mechanism comprises a supporting frame, a height adjusting support and a guide sliding way. The grinding mechanism comprises a grinding frame, a grinding motor, a grinding wheel and a transmission belt; the horizontal adjusting device comprises a lead screw, a servo motor and a lead screw sliding block. On-line welding and grinding are carried out on the conical roller of the ring rolling machine, the conical roller does not need to be disassembled, repairing time is greatly shortened, the downtime of equipment is shortened, and production efficiency is improved; the labor intensity of workers is reduced, and the labor cost is reduced; damage to conical roller parts caused by repeated disassembly and assembly of the conical roller is avoided, the maintenance cost of the conical roller is reduced, meanwhile, the risk that the ring rolling precision of the ring rolling machine is reduced possibly due to the damage of the conical roller is reduced, various surface grinding requirements of irregular welding can be met, and the grinding quality of the conical roller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tapered rollers of ring rolling machines, in particular to an online automatic grinding tool for tapered rollers of ring rolling machines. Background Art

[0002] Ring rolling machines are mainly used to roll inner and outer rings of bearings, gear rings, pipe flanges and other forgings. The materials include carbon steel, stainless steel, titanium alloy and other alloys. During the rolling process, the tapered rollers are easily worn parts. Their wear will lead to reduced processing accuracy and uneven end faces of the rings. Therefore, the tapered rollers of the ring rolling machine need to be repaired from time to time.

[0003] In existing technology, the traditional repair process for the tapered rollers of ring rolling machines involves disassembly, welding, grinding, repair, and reinstallation. This process is time-consuming and labor-intensive, and can result in uneven and difficult welding. Repairing the tapered rollers requires removing them from the equipment, installing them on a lathe or other auxiliary tooling for overlay welding, and then reinstalling them into the ring rolling machine. This time-consuming process increases repair time and incurs the time cost of multiple tapered roller replacements. Furthermore, traditional methods cannot perform online grinding of the tapered rollers while the ring rolling machine is in operation, limiting production efficiency and continuous operation.

[0004] A conical roller grinding device with application number CN2015203427244 is also used for grinding the conical rollers of ring rolling machines. However, it can only be ground by positioning. When the grinding position needs to be changed, manual assistance is required, and the positioning must be readjusted after moving, making it difficult to achieve efficient grinding efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide an online automatic grinding tool for the tapered roller of a ring rolling machine, so as to solve the problem that in the existing technology proposed in the above background technology, the traditional repair process of the tapered roller of the ring rolling machine includes disassembly, welding, grinding repair and installation and resetting. This process is time-consuming and labor-intensive, and there are problems of uneven welding and great welding difficulty.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online automatic grinding tool for the tapered roller of a ring rolling machine, comprising a support mechanism and a grinding mechanism; the support mechanism comprises a horizontally arranged support frame and a height adjustment support is respectively arranged at its four corners, a hollow rectangular through hole is provided near the middle of the support frame and guide slides facing each other up and down are provided on both the left and right sides thereof, and a grinding mechanism is jointly arranged through two sets of guide slides facing each other up and down; a horizontal adjustment device connected to the grinding mechanism and capable of driving it to move is provided on the bottom surface of the support frame; the grinding mechanism comprises a grinding frame, a motor mounting plate is provided on the right side of the top surface of the grinding frame, a grinding motor is provided on the top surface of the motor mounting plate, a longitudinally mounted grinding shaft is embedded in the grinding frame on the left side of the motor mounting plate, both ends of the grinding shaft are arranged on the grinding frame through bearing seats, and a grinding wheel is provided in the middle of the grinding shaft, pulleys are provided on the grinding shaft and the grinding motor and a transmission belt is jointly provided.

[0007] Furthermore, the height adjustment support includes a support base and a circular recess at the center of its top surface and an embedded bearing, the inner ring of the bearing is interference fit with a vertical support column, the outer wall of the support column is provided with an external thread and is installed with two height adjustment nuts, both height adjustment nuts are fixedly set on the support frame, and a hexagonal nut is fixedly set on the top of the support column.

[0008] Furthermore, the two ends of the grinding frame are respectively placed between two sets of upper and lower opposing guide slides; a grinding motor is arranged on the top surface of the motor mounting plate through the guide slides, and two tightening bolts are also arranged on the top surface of the motor mounting plate on the left side of the grinding motor.

[0009] Furthermore, the horizontal adjustment device includes two screw rods longitudinally arranged on the bottom surface of the support frame, both screw rods are fixed on the bottom surface of the support frame through bearing seats, and a servo motor is provided at one end of the screw rod; a screw rod slider is matched with the screw rod, and the screw rod slider is fixed on the bottom surface of the grinding frame.

[0010] Furthermore, grinding wheel guards are provided on the grinding frame on both the left and right sides of the grinding wheel.

[0011] Preferably, the grinding motor is a variable frequency motor.

[0012] Preferably, the grinding wheel is a brown corundum grinding wheel.

[0013] Preferably, the servo motor and the grinding motor are connected to a CNC center together.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is used for online welding and grinding of the tapered roller of the ring rolling machine. There is no need to remove the tapered roller from the equipment, install it on the submerged arc welding machine for welding, and then install it on a large horizontal machine for turning. Instead, online welding and grinding are carried out directly on the ring rolling machine, which greatly shortens the repair time, reduces the equipment downtime, and improves production efficiency. The online grinding tool reduces the need for manual participation in complex processes such as disassembling and assembling the tapered roller, and no longer requires multiple people to disassemble the tapered roller, which reduces the labor intensity of workers and realizes fully automatic online grinding, thereby reducing labor costs. Since the damage to the tapered roller components caused by multiple disassembly and assembly of the tapered roller is avoided, such as the bearings and seals that need to be replaced each time they are disassembled, the maintenance cost of the tapered roller is reduced, and the risk of reduced ring rolling accuracy of the ring rolling machine due to damage to the tapered roller is reduced. In the online grinding tool, the grinding wheel is driven to rotate by a variable frequency motor and realizes stepless speed regulation, which greatly meets the grinding requirements of various irregular welding surfaces, and the distance between the grinding wheel and the welding surface can be accurately adjusted by the tool support mechanism. Through CNC programming, the grinding wheel cone roller can move at a uniform speed in the axis direction, thereby improving the surface grinding accuracy and ensuring the grinding quality of the cone roller; compared with the traditional cone roller grinding which uses manual angle grinder for grinding, the grinding time is long and the surface quality of the cone roller after grinding cannot meet the surface accuracy requirements of the cone roller, the online automatic grinding tooling used in the utility model can significantly improve the grinding efficiency, reduce the grinding cost and labor intensity, and at the same time improve the grinding quality of the cone surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the structure of the utility model;

[0017] Figure 2 for Figure 1 Top view;

[0018] Figure 3 for Figure 1 rear view;

[0019] Figure 4 for Figure 3 A magnified view of middle A;

[0020] Figure 5 for Figure 3 Enlarged view of middle B;

[0021] Figure 6 for Figure 1 Right view of;

[0022] Figure 7 It is the top view of the grinding mechanism;

[0023] Figure 8 for Figure 7 rear view;

[0024] Figure 9 This is a schematic diagram of the grinding principle of the upper and lower tapered rollers of the ring rolling machine of the utility model;

[0025] Figure 10 This is a schematic diagram of the installation of the utility model on a ring rolling machine;

[0026] In the figure: support mechanism 1, support frame 11, height adjustment support 12, support base 121, support column 122, height adjustment nut 123, hexagonal nut 124, rectangular through hole 13, guide slide 14, grinding mechanism 2, grinding frame 21, motor mounting plate 22, grinding motor 23, tightening bolt 24, grinding shaft 25, grinding wheel 26, transmission belt 27, grinding wheel guard 28, leveling device 3, screw 31, servo motor 32, screw slider 33. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please refer to Figure 1-10 , Figure 1 This is the main view of the structure of the utility model; Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 rear view; Figure 4 for Figure 3 A magnified view of middle A; Figure 5 for Figure 3 Enlarged view of middle B; Figure 6 for Figure 1 Right view of; Figure 7 It is the top view of the grinding mechanism; Figure 8 for Figure 7 rear view; Figure 9 This is a schematic diagram of the grinding principle of the upper and lower tapered rollers of the ring rolling machine of the utility model; Figure 10 This is a schematic diagram of the utility model being installed on a ring rolling machine.

[0029] The utility model provides an online automatic grinding tool for the tapered roller of a ring rolling machine, which is used for grinding the tapered roller of the ring rolling machine online. The tool comprises a supporting mechanism 1 and a grinding mechanism 2.

[0030] The support mechanism 1 includes a horizontally arranged support frame 11, and a height adjustment support 12 is respectively provided at the four corners of the support frame 11 for adjusting the vertical height of the support frame 11; a hollow rectangular through hole 13 is provided near the middle of the support frame 11, and guide slides 14 facing each other up and down are provided on the left and right sides of the rectangular through hole 13, and a grinding mechanism 2 is jointly provided through two groups of guide slides 14 facing each other up and down; at the same time, a horizontal adjustment device 3 connected to the grinding mechanism 2 and capable of driving it to move is provided on the bottom surface of the support frame 11; through the coordinated use of the height adjustment support 12 and the horizontal adjustment device 3, the adjustable level and height of the grinding mechanism 2 can be adjusted, thereby ensuring effective contact with the surface of the tapered roller to be ground.

[0031] The height adjustment support 12 includes a support base 121, a circular concave groove is provided at the center of the top surface of the support base 121 and a bearing is embedded therein, and a vertical support column 122 is installed with an interference fit on the inner ring of the bearing, and an external thread is provided on the outer wall of the support column 122, and two height adjustment nuts 123 are threadedly installed, and the two height adjustment nuts 123 are fixedly provided on the support frame 11, and a hexagonal nut 124 is fixedly provided on the top of the support column 122; when in use, the support column 122 is driven to rotate synchronously by rotating the hexagonal nut 124, so that the vertical height of the support frame 11 can be adjusted.

[0032] The grinding mechanism 2 includes a grinding frame 21, and the two ends of the grinding frame 21 are respectively placed between two groups of upper and lower opposite guide slides 14; a motor mounting plate 22 is provided on the right side of the top surface of the grinding frame 21, and a grinding motor 23 is provided on the top surface of the motor mounting plate 22 through a guide slide, and two tightening bolts 24 are also provided on the top surface of the motor mounting plate 22 on the left side of the grinding motor 23, for tightening and fixing the grinding motor 23; a longitudinally mounted grinding shaft 25 is embedded in the grinding frame 21 on the left side of the motor mounting plate 22, and the two ends of the grinding shaft 25 are provided on the grinding frame 21 through bearing seats, and a grinding wheel 26 is provided in the middle of the grinding shaft 25, and at the same time, the grinding shaft 25 and the grinding motor 23 are provided with pulleys and a transmission belt 27 is provided together.

[0033] In addition, grinding wheel guards 28 are provided on the grinding frame 21 on both the left and right sides of the grinding wheel 26 to ensure safety when the grinding wheel 26 is in operation.

[0034] The grinding motor 23 is a variable frequency motor, which drives the grinding wheel 26 to achieve stepless speed regulation, meeting the grinding needs of complex and irregular welding surfaces.

[0035] The grinding wheel 26 is a brown corundum grinding wheel.

[0036] The horizontal adjustment device 3 includes two screw rods 31 longitudinally arranged on the bottom surface of the support frame 11. The two screw rods 31 are fixed on the bottom surface of the support frame 11 through a bearing seat. A servo motor 32 is provided at one end of the screw rod 31 for driving the rotation of the screw rod 31; a screw rod slider 33 is matched with the screw rod 31, and the screw rod slider 33 is fixed on the bottom surface of the grinding frame 21, so that the grinding mechanism 2 can be driven to move longitudinally by the servo motor 32.

[0037] When in use, the support mechanism 1 is placed in the middle position of the upper and lower conical rollers of the ring rolling machine, so that both the upper and lower conical rollers can be ground. The conical rollers are set to run at a low speed through the ring rolling machine equipment, and the brown corundum grinding wheel is driven to rotate by a variable frequency motor, thereby realizing the grinding of the welding surface; the servo motor 32 and the grinding motor 23 are connected to the CNC center together, and through CNC programming, the grinding wheel 26 and the grinding motor 23 are driven by the lead screw 31 to run at a uniform speed along the axis of the conical roller on the guide rail, and the CNC system gives the grinding amount for each time, the total grinding amount and the number of round-trip grinding, thereby realizing fully automatic reciprocating grinding of the surface of the conical roller.

[0038] The utility model is used for online welding and grinding of the tapered roller of the ring rolling machine. There is no need to remove the tapered roller from the equipment, install it on the submerged arc welding machine for welding, and then install it on a large horizontal machine for turning. Instead, online welding and grinding are carried out directly on the ring rolling machine, which greatly shortens the repair time, reduces the equipment downtime, and improves production efficiency. The online grinding tool reduces the need for manual participation in complex processes such as disassembling and assembling the tapered roller, and no longer requires multiple people to disassemble the tapered roller, which reduces the labor intensity of workers and realizes fully automatic online grinding, thereby reducing labor costs. Since the damage to the tapered roller components caused by multiple disassembly and assembly of the tapered roller is avoided, such as the bearings and seals that need to be replaced each time they are disassembled, the maintenance cost of the tapered roller is reduced, and the risk of reduced ring rolling accuracy of the ring rolling machine due to damage to the tapered roller is reduced. In the online grinding tool, the grinding wheel is driven to rotate by a variable frequency motor and realizes stepless speed regulation, which greatly meets the grinding requirements of various irregular welding surfaces, and the distance between the grinding wheel and the welding surface can be accurately adjusted by the tool support mechanism. Through CNC programming, the grinding wheel cone roller can move at a uniform speed in the axis direction, thereby improving the surface grinding accuracy and ensuring the grinding quality of the cone roller; compared with the traditional cone roller grinding which uses manual angle grinder for grinding, the grinding time is long and the surface quality of the cone roller after grinding cannot meet the surface accuracy requirements of the cone roller, the online automatic grinding tooling used in the utility model can significantly improve the grinding efficiency, reduce the grinding cost and labor intensity, and at the same time improve the grinding quality of the cone surface.

[0039] Although the embodiments of the present invention have been shown and described, it is clear that the described embodiments are only a portion of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it is understood by those skilled in the art that all other embodiments obtained by various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of the present invention and without making any creative efforts are within the scope of protection of the present invention.

Claims

1. An online automatic grinding tool for the tapered roller of a ring rolling machine, characterized by: The invention comprises a support mechanism (1) and a grinding mechanism (2); the support mechanism (1) comprises a horizontally arranged support frame (11) and a height adjustment support (12) is respectively arranged at the four corners thereof; a hollow rectangular through hole (13) is arranged near the middle of the support frame (11) and guide slideways (14) facing each other vertically are arranged on both the left and right sides thereof; the grinding mechanism (2) is arranged together through two groups of guide slideways (14) facing each other vertically; a horizontal adjustment device (3) connected to the grinding mechanism (2) and capable of driving the grinding mechanism (2) to move is arranged on the bottom surface of the support frame (11); the grinding mechanism (2) comprises A grinding frame (21) is provided with a motor mounting plate (22) on the right side of the top surface of the grinding frame (21), a grinding motor (23) is provided on the top surface of the motor mounting plate (22), a longitudinally mounted grinding shaft (25) is embedded in the grinding frame (21) on the left side of the motor mounting plate (22), both ends of the grinding shaft (25) are provided on the grinding frame (21) through bearing seats, and a grinding wheel (26) is provided in the middle of the grinding shaft (25), and pulleys are provided on the grinding shaft (25) and the grinding motor (23) and a transmission belt (27) are provided together.

2. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 1 is characterized in that: The height adjustment support (12) includes a support base (121) and a circular concave at the center of the top surface thereof and embedded with a bearing, the inner ring of the bearing is interference-fitted with a vertical support column (122), the outer wall of the support column (122) is provided with an external thread and is installed with two height adjustment nuts (123), the two height adjustment nuts (123) are fixedly set on the support frame (11), and the top of the support column (122) is fixedly provided with a hexagonal nut (124).

3. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 2 is characterized in that: The two ends of the grinding frame (21) are respectively placed between two groups of upper and lower facing guide slides (14); a grinding motor (23) is arranged on the top surface of the motor mounting plate (22) through the guide slides, and two tightening bolts (24) are also arranged on the top surface of the motor mounting plate (22) on the left side of the grinding motor (23).

4. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 3 is characterized by: The horizontal adjustment device (3) includes two screw rods (31) longitudinally arranged on the bottom surface of the support frame (11), and the two screw rods (31) are fixedly arranged on the bottom surface of the support frame (11) through a bearing seat, and a servo motor (32) is arranged at one end of the screw rod (31); a screw rod slider (33) is matched with the screw rod (31), and the screw rod slider (33) is fixedly arranged on the bottom surface of the grinding frame (21).

5. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 4 is characterized in that: Grinding wheel guards (28) are provided on the grinding frame (21) on both the left and right sides of the grinding wheel (26).

6. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 4 is characterized in that: The grinding motor (23) is a variable frequency motor.

7. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 4 is characterized in that: The grinding wheel (26) is a brown corundum grinding wheel.

8. The on-line automatic grinding tool for the tapered roller of a ring rolling machine according to claim 6 is characterized in that: The servo motor (32) and the grinding motor (23) are connected to a numerical control center.

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