Flange for adjusting dynamic balance of grinding wheel

Abstract

The utility model relates to the technical field of grinding wheels, in particular to a flange for adjusting dynamic balance of a grinding wheel, the flange is provided with an annular chute, three balance blocks are arranged in the chute, the outer side surface of the chute is a cylindrical surface, the inner side surface of the chute is a conical surface, and the diameter of the conical surface at the bottom of the chute is smaller than that of the conical surface at the top of the chute; each balance block is of a split structure and is formed by attaching a first sub-block and a second sub-block, straddle screws are arranged on the attaching faces, the outer side face of each first sub-block is matched with the cylindrical face of the corresponding sliding groove, and the inner side face of each second sub-block is matched with the conical face of the corresponding sliding groove. The balance block is of a split structure and is composed of the two sub-blocks, when the balance block is installed, the second sub-block is firstly placed in the sliding groove, the conical surface of the balance block is attached to the conical surface of the sliding groove, then the first sub-block is placed, and the perforation screw is installed. The balance block is arranged in a split mode, the sub-blocks are sequentially installed, the balance block can still be smoothly installed even if an opening is not formed in the sliding groove, and the problem that the balance block cannot be arranged at the opening is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grinding wheel dynamic balance adjustment, particularly relates to a flange for adjusting the dynamic balance of a grinding wheel. BACKGROUND

[0002] During grinding, the grinding wheel rotates at high speed, and unevenness of the grinding wheel material and machining errors of the outer dimension can cause the center of gravity of the grinding wheel to be misaligned with the rotation axis, resulting in imbalance. This imbalance can cause machine tool vibration and produce vibration marks on the ground surface, and even damage the cutting edge. Therefore, the grinding wheel needs to be dynamically balanced before use.

[0003] To adjust the dynamic balance, a flange is usually provided for the grinding wheel, and an annular sliding groove is formed in the flange. Three dynamic balancing blocks are arranged in the sliding groove. By adjusting the position of the dynamic balancing blocks in the sliding groove, the unbalanced force of the grinding wheel can be offset, making the grinding wheel rotate more uniformly and stably and reducing the wear of the grinding machine spindle.

[0004] Chinese invention patent CN114346898A discloses a grinding wheel dynamic balance adjustment device, and also discloses a grinding wheel (which is essentially a flange structure) in the specification. An annular sliding groove is formed in the flange, and the cross section of the sliding groove is trapezoidal. Three dynamic balancing blocks are arranged in the sliding groove, and a connecting hole is formed in each balancing block. A bolt is screwed into the connecting hole, and the bolt abuts against the inner bottom surface of the sliding groove. At this time, the balancing block abuts against the inner side wall of the sliding groove, and the balancing block remains stable in the sliding groove. The balancing block is small at the top and large at the bottom, and the upper opening of the sliding groove is smaller than the lower edge of the balancing block to prevent the balancing block from falling out, but it is also difficult to fit in. Therefore, openings (which can be seen in the specification, and this is also a common practice in the field) are provided on the sliding groove to allow the balancing block to be smoothly placed in the sliding groove. During dynamic balance adjustment, the position of the balancing block is adjusted according to the unbalanced value of the grinding wheel. However, when the unbalanced point is located at the opening, the balancing block cannot be arranged at the three openings, affecting the dynamic balance adjustment of the grinding wheel. Figure 1 UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a flange for adjusting the dynamic balance of a grinding wheel to solve the above-mentioned problems in the prior art. To achieve the above-mentioned purpose, the utility model solves the problem by the following technical scheme:

[0006] ​The utility model provides a kind of flange of adjusting grinding wheel dynamic balance, the flange is opened annular sliding slot, three balancing blocks are equipped in the sliding slot, the outside of the sliding slot is cylindrical surface, and the inside is conical surface, the diameter of the conical surface at groove bottom is less than its diameter at groove top;Each balancing block is split structure, is formed by first sub-block and second sub-block and is equipped with saddle seam screw on the bonding surface, the outside of the first sub-block is adapted to the cylindrical surface of the sliding slot, and the inside of the second sub-block is adapted to the conical surface of the sliding slot.

[0007] As a further technical solution, the bonding surface is a plane and perpendicular to the diameter direction of the flange.

[0008] As a further technical solution, the bonding surface is equipped with a saddle seam hole that cooperates with the saddle seam screw, and the saddle seam hole is a through hole.

[0009] As a further technical solution, the flange is equipped with a fastening screw for connecting with the grinding machine spindle.

[0010] As a further technical solution, the flange has a contact end surface on the opposite side of the sliding slot, which is adapted to the grinding machine spindle and the grinding wheel end surface.

[0011] The beneficial effects of the above-mentioned utility model are as follows:

[0012] (1) The balancing block of the utility model is a split structure composed of two sub-blocks. When assembling, the second sub-block is first placed in the sliding slot, the balancing block conical surface is bonded with the sliding slot conical surface, and then the first sub-block is placed and the saddle seam screw is assembled. The sub-blocks are assembled in sequence, and the balancing block can be smoothly assembled even without an opening in the sliding slot, avoiding the problem of not being able to arrange the balancing block at the opening.

[0013] (2) The utility model is equipped with a saddle seam screw on the bonding surface of each balancing block. After the sub-blocks are assembled in the sliding slot, the saddle seam screw is screwed, the saddle seam screw is pressed against the sliding slot bottom, the balancing block moves upward, the balancing block conical surface is tightly bonded with the sliding slot conical surface, the balancing block is fixed, and the balancing block has good stability in the sliding slot. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions serve to explain the utility model and do not constitute a limitation of the utility model. It should also be understood that these drawings are shown for simplicity and clarity and are not necessarily drawn to scale. The utility model will now be described and explained in additional features and details by using the drawings, in which:

[0015] Figure 1The flange for adjusting dynamic balance of a grinding wheel and the grinding wheel assembly front view in the embodiment of the utility model are shown.

[0016] Figure 2 The flange for adjusting dynamic balance of a grinding wheel and the grinding wheel assembly section view in the embodiment of the utility model are shown.

[0017] Figure 3 The main view when the balancing block is assembled in the embodiment of the utility model is shown.

[0018] Figure 4 The section view when the balancing block is assembled in the embodiment of the utility model is shown.

[0019] Figure 5 The main view when the balancing block is disassembled in the embodiment of the utility model is shown.

[0020] Figure 6 The section view when the balancing block is disassembled in the embodiment of the utility model is shown.

[0021] In the figure: 1, grinding wheel; 2, flange; 3, balancing block; 31, first sub-block; 311, balancing block cylindrical surface; 32, second sub-block; 321, balancing block conical surface; 33, split pin; 4, grinding machine spindle; 5, sliding groove; 51, sliding groove cylindrical surface; 52, sliding groove conical surface; 6, fastening screw; 7, stop. DETAILED DESCRIPTION

[0022] The technical scheme in the typical embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0023] As shown in Figure 1 and Figure 2 , the embodiment provides a flange for adjusting dynamic balance of a grinding wheel, the flange 2 is provided with an annular sliding groove 5, three balancing blocks 3 are arranged in the sliding groove 5, the unbalanced force of the grinding wheel is offset by adjusting the position of the balancing block 3 in the sliding groove 5, so that the grinding wheel rotates more uniformly and stably.

[0024] In the embodiment, as shown in Figure 2 , the outer side surface of the sliding groove 5 is a cylindrical surface, that is, a sliding groove cylindrical surface 51, and the inner side surface is a conical surface, that is, a sliding groove conical surface 52.

[0025] The diameter of the sliding groove conical surface 52 at the groove bottom is smaller than the diameter at the groove top, the diameters of different positions of the conical surface are different, and the diameter at the groove bottom of the sliding groove 5 is smaller than the diameter at the groove top.

[0026] As shown in Figure 3 ,Figure 4 、 Figure 5 and Figure 6 As shown in the drawings, each balance block 3 is a split structure formed by the first sub-block 31 and the second sub-block 32, and a saddle screw 33 is arranged on the joint surface. The outer side surface of the first sub-block 31 is adapted to the cylindrical surface of the sliding groove 5, and the inner side surface of the second sub-block 32 is adapted to the conical surface of the sliding groove 5. That is, the sliding groove cylindrical surface 51 matches the balance block cylindrical surface 311, and the sliding groove conical surface 52 matches the balance block conical surface 321.

[0027] The outer side surface of the first sub-block 31 is a cylindrical surface, and the inner side surface is a flat surface. The inner side surface of the second sub-block 32 is a conical surface, and the outer side surface is a flat surface. The inner side surface of the first sub-block 31 and the outer side surface of the second sub-block 32 are joint surfaces. After the balance block 3 is installed in the sliding groove 5, the joint surface is perpendicular to the diameter direction of the flange 2. A saddle screw hole is arranged on the joint surface and matched with the saddle screw 33, and the saddle screw hole is a through hole. It can be understood that half of the screw hole is arranged on each sub-block of the balance block, and the two sub-blocks are jointed to form a complete saddle screw hole.

[0028] When the balance block 3 is installed, the second sub-block 32 is first placed in the sliding groove 5, the balance block conical surface 321 is jointed with the sliding groove conical surface 52, and then the first sub-block 31 is placed and the saddle screw 33 is installed. The saddle screw 33 is screwed, the saddle screw 33 is pressed against the bottom of the sliding groove 5, the balance block 3 is moved upward, the balance block conical surface 321 is tightly jointed with the sliding groove conical surface 52, and the balance block 3 is fixed. The unbalanced position is measured by the dynamic balancing device, the saddle screw 33 is loosened, the balance block 3 is rotated to the required position, and then the saddle screw 33 is locked. Other adjustment devices can also be used to assist in adjusting the position of the balance block.

[0029] The balance block 3 of the embodiment is a split structure composed of two sub-blocks. When installed, the second sub-block 32 is first placed in the sliding groove 5, the balance block conical surface 321 is jointed with the sliding groove conical surface 52, and then the first sub-block 31 is placed and the saddle screw 33 is installed. The balance block 3 is thus split and installed in the sliding groove 5 in sequence, which can still ensure smooth installation of the balance block even if no opening is provided on the sliding groove 5, thereby avoiding the problem that the balance block cannot be arranged at the opening.

[0030] In the embodiment, the saddle screw 33 is arranged on the joint surface of each balance block 3. After the sub-blocks are installed in the sliding groove, the saddle screw 33 is screwed, the saddle screw 33 is pressed against the bottom of the sliding groove, the balance block 3 is moved upward, the balance block conical surface 321 is tightly jointed with the sliding groove conical surface 52, the balance block 3 is fixed, and the balance block 3 also has good stability in the sliding groove 5.

[0031] As shown in the drawings, Figure 1 and Figure 2As shown in the drawings, the flange 2 is provided with fastening screws 6 for connecting with the grinder spindle 4. Six fastening screws are arranged in this embodiment, which are uniformly arranged on the same circle. It can be understood that in some embodiments, the number of fastening screws can be selected according to actual conditions, for example, when the diameter of the grinder spindle is larger, the number of fastening screws required may be more than this embodiment.

[0032] As shown in the drawings, the flange 2 is provided with fastening screws 6 for connecting with the grinder spindle 4. Six fastening screws are arranged in this embodiment, which are uniformly arranged on the same circle. It can be understood that in some embodiments, the number of fastening screws can be selected according to actual conditions, for example, when the diameter of the grinder spindle is larger, the number of fastening screws required may be more than this embodiment. Figure 2 As shown in the drawings, the flange 2 is provided with fastening screws 6 for connecting with the grinder spindle 4. Six fastening screws are arranged in this embodiment, which are uniformly arranged on the same circle. It can be understood that in some embodiments, the number of fastening screws can be selected according to actual conditions, for example, when the diameter of the grinder spindle is larger, the number of fastening screws required may be more than this embodiment.

[0033] Specifically, the flange 2 is provided with a stop 7 on one side, which is matched with the end face of the grinder spindle 4 and positioned, at this time, the outer edge end face of the flange 2 is attached to the grinding wheel 1, and is locked by the fastening screw 6.

[0034] In the process of assembling the grinding wheel, the grinding wheel 1 is assembled on the grinder spindle 4, one side end face is attached to the shoulder of the grinder spindle 4, then the flange 2 is matched with the end face of the grinder spindle 4 and positioned through the stop 7, and the fastening screw 6 is locked. Three balancing blocks 3 are sequentially assembled in the sliding groove 5 of the flange 2, the unbalanced position is measured by the dynamic balancing device, the split screw 33 is loosened, the balancing block 3 is rotated to the required position, and the split screw 33 is locked. Other adjustment devices can also be used to assist in adjusting the position of the balancing block.

[0035] Although the utility model has disclosed the above with preferred embodiments, it is not intended to limit the utility model, and any person skilled in the art can make possible changes and modifications to the utility model technical scheme by using the above disclosed methods and technical contents without departing from the spirit and scope of the utility model, therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, which does not depart from the content of the utility model technical scheme, all belong to the protection scope of the utility model technical scheme.

Claims

1. A flange for adjusting dynamic balance of a grinding wheel, the flange is provided with an annular sliding groove, and three balancing blocks are arranged in the sliding groove, characterized in that, The outer side of the sliding slot is a cylindrical surface, and the inner side is a conical surface, the diameter of the conical surface at the bottom of the slot is smaller than that at the top of the slot; each of the balancing blocks is a split structure formed by bonding a first sub-block and a second sub-block, and a split screw is arranged on the bonding surface, the outer side of the first sub-block is adapted to the cylindrical surface of the sliding slot, and the inner side of the second sub-block is adapted to the conical surface of the sliding slot.

2. A flange for conditioning the dynamic balance of a grinding wheel as claimed in claim 1, characterized in that, The bonding surface is a plane and is perpendicular to the diameter direction of the flange.

3. The flange for regulating dynamic balance of a grinding wheel as set forth in claim 1, wherein The bonding surface is provided with a split screw hole matched with the split screw, and the split screw hole is a through hole.

4. The flange for regulating dynamic balance of a grinding wheel as set forth in claim 1, wherein The flange is provided with a fastening screw for connecting with the main shaft of the grinding machine.

5. A flange for conditioning the dynamic balance of a grinding wheel as defined in claim 4, wherein, The flange is provided with a contact end surface on the opposite side of the sliding slot, which is adapted to the main shaft of the grinding machine and the end surface of the grinding wheel.

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