Bearing ring positioning tool for vertical grinding machine

Abstract

The utility model provides a bearing ring positioning tool for a vertical grinding machine, which comprises a mounting plate, a bearing ring positioning device and a positioning device, and the supporting assembly comprises a fixed supporting unit and a movable supporting unit which are mounted on the mounting plate, and is used for supporting and positioning the outer side surface of the bearing ring. The supporting assembly comprising the fixed supporting unit and the movable supporting unit is arranged to support the outer side face of the bearing ring so as to conduct radial positioning on the bearing ring, the supporting assembly is installed on the machine tool in cooperation with the installation plate, the stable clamping function of the bearing ring is achieved, and the problem that the bearing ring cannot be completely clamped and fixed due to the small number of positioning points is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing grinding processing, in particular to a bearing ring positioning tool for a vertical grinder. Background Art

[0002] Grinding is an important step in the bearing production process. Its main purpose is to make the size and shape accuracy of the ring meet the design requirements and provide qualified rings for bearing assembly. In the existing technology, the vertical grinder for extra-large thin-walled bearing rings generally adopts the method of centering grinding, that is, positioning by magnetic chuck and manual alignment. Since the thin-walled bearing rings are prone to deformation caused by stress release and deformation caused by the clamping and alignment process during the grinding process, it is difficult to ensure the accuracy of the processing of thin-walled bearing rings, and the processing is very difficult.

[0003] Chinese patent CN201833241U discloses a rolling bearing support for centerless grinding, which is supported on the outer cylindrical surface of an annular workpiece and is used for radial positioning of the annular workpiece during grinding. It is characterized in that the radial positioning support during the grinding of the annular workpiece is a rolling bearing. The rolling bearing is provided with two, which are supported on the outer cylindrical surface of the annular part to achieve radial positioning during the grinding of the annular workpiece. The utility model has a simple structure, and changes the friction mode between the support surface and the outer cylindrical surface of the workpiece from sliding friction to rolling friction, which greatly reduces the friction between the support surface and the outer cylindrical surface of the workpiece, and effectively solves the problem that the sliding support roughens the outer cylindrical surface of the workpiece, generates friction heat and wear.

[0004] However, this technical solution has the following problems: first, the number of its positioning points is small, and the bearing ring cannot be completely clamped and fixed; second, its positioning accuracy is low and does not meet the accuracy requirements of the bearing. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies in the prior art and provide a bearing ring positioning tool for a vertical grinder. The utility model supports the outer side of the bearing ring for radial positioning by providing a support assembly including a fixed support unit and a dynamic support unit. The support assembly is installed on the machine tool in conjunction with a mounting plate to achieve a stable clamping function of the bearing ring, thereby solving the problem that the bearing ring cannot be completely clamped and fixed due to a small number of positioning points.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bearing ring positioning tool for a vertical grinding machine, comprising:

[0008] Mounting plate, mounted horizontally on the machine tool;

[0009] The support assembly comprises a fixed support unit and a movable support unit which are installed on the installation plate and support and position the outer side surface of the bearing ring.

[0010] Preferably, the mounting plate comprises a mounting groove, which is arc-shaped and is arranged concentrically with the bearing ring.

[0011] Preferably, the fixed support unit comprises a first connecting block installed in the installation groove and a roller seat installed on the first connecting block, and a fixed roller is movably mounted on the roller seat.

[0012] Preferably, the dynamic support unit comprises a second connecting block installed in the installation groove, an adjustment block installed on the second connecting block, and a support clamping plate movably installed on both sides of the adjustment block, and the support clamping plate is provided with two movable rollers.

[0013] As a preference, the fixed roller and the movable roller are axially arranged vertically and are in linear contact with the outer side surface of the bearing ring.

[0014] As a preference, the roller seat is radially slidably mounted on the first connecting block, and the fixed roller is rotatably connected to one end of the roller seat facing the bearing ring.

[0015] As a preference, the adjustment block is detachably mounted on the second connecting block via a pressure plate, and the support clamp is rotatably mounted on the adjustment block via a rotary shaft.

[0016] As a preference, the fixed roller and the movable roller are respectively mounted on the roller seat and the supporting clamping plate through roller shafts, and a plurality of bearings are arranged between the fixed roller and the movable roller and the roller shafts.

[0017] As a preference, two installation grooves are concentrically arranged, the first connection block and the second connection block are installed in the installation grooves at intervals, and the installation positions of the first connection block and the second connection block are circumferentially adjustable.

[0018] As a preference, two sets of the mounting plates and support assemblies are arranged along the circumference of the bearing ring.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model uses a fixed support unit and a dynamic support unit in combination with a mounting plate to mount the support assembly on a machine tool, thereby achieving precise support and positioning of the outer side surface of the bearing ring.

[0021] (2) The utility model provides a first connecting block on the fixed support unit, and the positioning height can be adjusted according to the bearing ring by changing the connecting block, and the roller seat radially slidably installed on the first connecting block can be used to adjust the diameter and height of the fixed support unit.

[0022] (3) The utility model provides a detachable adjustment block on the dynamic support unit, and the adjustment block can be replaced according to the bearing ring to adjust the height and diameter, so the structure is simpler, more stable and reliable.

[0023] (4) The utility model improves the support accuracy and rigidity by installing four sets of narrow series angular contact ball bearings on each fixed roller and each movable roller, so that the tooling can position the bearing ring with the highest possible accuracy and have a higher anti-interference performance.

[0024] (5) The utility model provides two sets of support components to support and position the bearing ring at multiple points along the circumference, making the positioning more reliable.

[0025] In summary, the utility model has the advantages of accurate and reliable positioning, convenient adjustment, strong anti-interference ability, etc., and is suitable for the grinding processing and positioning of extra-large thin-walled bearing rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a side view of the structure of the utility model;

[0028] FIG3 (a) is a schematic top view of a fixed support unit of the present invention;

[0029] FIG3 ( b ) is a side view schematic diagram of the fixed support unit of the utility model;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the dynamic support unit of the utility model;

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the movable roller of the utility model;

[0032] Figure 6 This is a schematic diagram of grinding the outer side of the bearing ring of the utility model;

[0033] Figure 7 It is a schematic diagram of grinding the inner side of the bearing ring of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] Embodiment 1

[0037] like Figure 1-7 As shown, this embodiment provides a bearing ring positioning tool for a vertical grinder, including: a mounting plate 1, horizontally mounted on the machine tool; a support assembly 2, including a fixed support unit 3 and a dynamic support unit 4 installed on the mounting plate 1, supporting and positioning the outer side of the bearing ring 5.

[0038] By using the fixed support unit 3 and the dynamic support unit 4 in coordination with the mounting plate 1 , the support assembly 2 is installed on the machine tool to achieve precise support and positioning of the outer side surface of the bearing ring 5 .

[0039] The mounting plate 1 comprises a mounting groove 11 , which is arc-shaped and is concentrically arranged with the bearing ring 5 .

[0040] The fixed support unit 3 includes a first connection block 31 installed in the installation groove 11 and a roller seat 32 installed on the first connection block 31, and a fixed roller 33 is movably installed on the roller seat 32. The roller seat 32 is radially slidably installed on the first connection block 31, and two fasteners 311 are installed on the first connection block 31. The connecting line of the fasteners 311 points to the center of the circle. A waist hole 321 is provided on the roller seat 32, and the waist hole 321 slides with the two fasteners 311 and can be positioned between the first connection block 31 under the action of the fasteners 311; the fixed roller 33 is rotatably connected to one end of the roller seat 32 facing the bearing ring 5.

[0041] By setting a first connecting block 31 on the fixed support unit 3, the positioning height can be adjusted by changing the connecting block according to the bearing ring 5, and the roller seat 32 radially slidably installed on the first connecting block 31 can be used to adjust the diameter and height of the fixed support unit 3.

[0042] like Figure 1 , 4 As shown, the dynamic support unit 4 includes a second connection block 41 installed in the installation groove 11, an adjustment block 42 installed on the second connection block 41, and support clamps 43 movably installed on both sides of the adjustment block 42, and the support clamps 43 are clamped with two moving rollers 44. The adjustment block 42 is provided with an arc groove 421 corresponding to the moving roller 44, and the arc groove 421 is spaced from the moving roller 44, so that the support clamps 43 have a certain range of movement. The adjustment block 42 is detachably mounted on the second connection block 41 through a pressure plate 45, and the support clamps 43 are rotatably mounted on the adjustment block 42 through a rotary shaft 46.

[0043] By providing a detachable adjustment block 42 on the dynamic support unit 4, the adjustment block 42 can be replaced according to the bearing ring 5 to adjust the height and diameter, and the structure is simpler, more stable and reliable.

[0044] like Figure 1 As shown, the installation groove 11 is concentrically provided with two pieces, the first connection block 31 and the second connection block 41 are installed in the installation groove 11 at intervals, and the installation positions of the first connection block 31 and the second connection block 41 are circumferentially adjustable.

[0045] By means of the arc-shaped design of the mounting groove 11 and the concentric arrangement with the bearing ring 5 , the fixed support unit 3 and the dynamic support unit 4 can be adjusted circumferentially to adapt the positioning points according to the processing requirements.

[0046] Embodiment 2

[0047] As shown in Fig. 3 (a)-5, the same or corresponding parts as those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that the fixed roller 33 and the movable roller 44 are arranged vertically in the axial direction and are in line contact with the outer side surface of the bearing ring 5. The fixed roller 33 and the movable roller 44 are respectively installed on the roller seat 32 and the supporting clamping plate 43 through the roller shaft 61, and a plurality of bearings 62 are arranged between the fixed roller 33 and the movable roller 44 and the roller shaft 61. The bearings 62 are angular contact bearings and are provided in four sets. Figure 5 4 is a schematic diagram of the connection of the movable roller 44. The connection method of the fixed roller 33 is the same as that of the movable roller 44, which will not be described in detail here.

[0048] By installing four sets of narrow series angular contact ball bearings 62 on each fixed roller 33 and movable roller 44, the support accuracy and rigidity are improved, so that the positioning of the bearing ring 5 by the tooling can have a higher anti-interference performance while ensuring the highest possible accuracy.

[0049] Embodiment 3

[0050] like Figure 1-7 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment is different from the first embodiment in that two sets of the mounting plate 1 and the support assembly 2 are arranged along the circumference of the bearing ring 5 and are arranged at an interval of 180°.

[0051] like Figure 6 As shown, in actual production, when processing the outer surface of the bearing ring 5, the bearing ring 5 is supported by two sets of dynamic support components 4 and two sets of fixed support components 3. The two sets of dynamic support units 4 are adjusted to determine the grinding position and grinding angle of the grinding wheel, and the grinding wheel performs grinding at an appropriate speed.

[0052] like Figure 7 As shown, when machining the inner surface of the bearing ring 5, a set of support components 2 is used to fix the workpiece, the grinding wheel is close to the support part, and the dynamic support component 4 is adjusted to grind the inner surface of the workpiece at a suitable grinding angle to achieve the required size and accuracy.

[0053] By providing two sets of support components 2, the bearing ring 5 is supported and positioned at multiple points along the circumference, making the positioning more reliable.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing ring positioning tool for a vertical grinder, characterized in that: include: Mounting plate, mounted horizontally on the machine tool; The support assembly comprises a fixed support unit and a movable support unit which are installed on the installation plate and support and position the outer side surface of the bearing ring.

2. The bearing ring positioning tool for a vertical grinder according to claim 1, characterized in that: The mounting plate comprises a mounting groove, which is arc-shaped and is arranged concentrically with the bearing ring.

3. The bearing ring positioning tool for a vertical grinder according to claim 2, characterized in that: The fixed support unit comprises a first connection block installed in the installation groove and a roller seat installed on the first connection block, and a fixed roller is movably installed on the roller seat.

4. The bearing ring positioning tool for a vertical grinder according to claim 3, characterized in that: The dynamic support unit comprises a second connection block installed in the installation groove, an adjustment block installed on the second connection block, and support clamps movably installed on both sides of the adjustment block, and the support clamps are clamped with two dynamic rollers.

5. The bearing ring positioning tool for a vertical grinder according to claim 4, characterized in that: The fixed roller and the movable roller are axially arranged vertically and are in linear contact with the outer side surface of the bearing ring.

6. The bearing ring positioning tool for a vertical grinder according to claim 5, characterized in that: The roller seat is radially slidably mounted on the first connecting block, and the fixed roller is rotatably connected to one end of the roller seat facing the bearing ring.

7. The bearing ring positioning tool for a vertical grinder according to claim 5, characterized in that: The adjusting block is detachably mounted on the second connecting block via a pressing plate, and the supporting clamping plate is rotatably mounted on the adjusting block via a rotating shaft.

8. The bearing ring positioning tool for a vertical grinder according to claim 5, characterized in that: The fixed roller and the movable roller are respectively mounted on the roller seat and the supporting clamping plate through roller shafts, and a plurality of bearings are arranged between the fixed roller, the movable roller and the roller shafts.

9. The bearing ring positioning tool for a vertical grinder according to claim 4, characterized in that: The installation grooves are concentrically arranged with two pieces, the first connection block and the second connection block are installed in the installation grooves at intervals, and the installation positions of the first connection block and the second connection block are circumferentially adjustable.

10. The bearing ring positioning tool for a vertical grinder according to claim 1, characterized in that: The mounting plate and the support assembly are arranged in two sets along the circumference of the bearing ring.

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