Floating supporting structure of long and thin bearing part end face grinding machine

Abstract

A floating supporting structure of a long and thin bearing part end face grinding machine comprises a rear connecting base, a rear floating support and a steel ball, a boss is integrally arranged at the position, between the rear connecting base and the rear floating support, of the rear connecting base, and the steel ball is clamped between a first groove and a second groove which are formed in the rear connecting base and the rear floating support respectively. An annular pressing plate is fixedly arranged at the position, located at the second groove, of the rear floating support, the boss is sleeved with the annular pressing plate, an annular groove is formed in the position, located at the outer ring of the annular pressing plate, of the rear floating support, the middle of the annular groove is covered with the outer ring of the annular pressing plate, and an annular middle connecting base is arranged in the annular groove; the end part of the free end of the middle connecting seat is clamped in a clamping groove formed by the annular groove and the annular pressing plate; the end part of the connecting end of the middle connecting seat extends out of the clamping groove and is connected with the rear connecting seat through a bolt; therefore, the bearing clamping time is shortened, the floating effect is good, the production efficiency is improved, and the bearing machining quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing end surface grinding, in particular to a floating support structure of an end surface grinding machine for an elongated bearing part. Background Art

[0002] When grinding the two end faces of the bearing, both end faces are blank faces, and the perpendicularity to the outer circle reaches 0.08mm. When grinding the end faces of the bearing, the rear support is fixed to the workpiece shaft, and one end face of the bearing leans against the fixed rear support. At the same time, the lower support and the pressure wheel lean against the outer circle of the bearing. The bearing is positioned under the action of the rear support, lower support, and pressure wheel and rotates with the pressure wheel. The grinding wheel grinds the other end of the bearing. Due to the non-perpendicularity between the outer circle and the end face, the rear support cannot correct the end face. Therefore, the ground end face of the bearing will still have large circular runout and will not be perpendicular to the outer circle. Even repeated grinding will not meet production requirements, and the grinding efficiency is low. Publication No. CN218875063U specifically provides a chuck and a grinding machine including the chuck, which is used to change the axis position of the workpiece to be processed to meet the posture required by grinding; but the elastic connection structure used to make the movable part float a certain amount relative to the base part is complex and difficult to assemble and maintain. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a floating support structure for an end face grinder of an elongated bearing part, aiming to simplify the assembly structure, improve production and reduce maintenance costs.

[0004] A floating support structure of an end face grinding machine for an elongated bearing part comprises a rear connecting seat, a rear floating support and a steel ball. A boss is integrally provided on the rear connecting seat between the rear connecting seat and the rear floating support. The boss is located in the middle of the rear connecting seat. A first groove with a hemispherical cross section is provided on the end face of the boss. A second groove with a V-shaped cross section is provided at a position corresponding to the first groove on the rear floating support. The first groove and the second groove are arranged facing each other. The steel ball is clamped between the first groove and the second groove. One side outer wall of the steel ball is in contact with and slides with the first groove. The steel ball is fixedly connected in the second groove. An annular pressure plate is fixedly provided at the second groove, and the annular pressure plate is sleeved on the boss. An annular groove is opened at the outer ring of the annular pressure plate on the rear floating support, and the outer ring of the annular pressure plate covers the middle part of the annular groove. An annular middle connecting seat is provided in the annular groove, and the free end of the middle connecting seat is clamped in the clamping groove formed by the annular groove and the annular pressure plate. The connecting end of the middle connecting seat extends out from the clamping groove and is fixedly connected to the rear connecting seat by bolts. Floating gaps are left between the rear connecting seat and the rear floating support, between the annular pressure plate and the boss, the rear connecting seat, and between the middle connecting seat and the annular pressure plate and the annular groove.

[0005] Furthermore, a grease groove for storing grease is provided at the bottom of the first groove.

[0006] Furthermore, the bolts are arranged along the axial direction of the rear connecting seat and penetrate the middle connecting seat. The rear connecting seat is a cylindrical structure, and the bolts are evenly distributed along the circumference of the rear connecting seat.

[0007] Furthermore, the annular pressure plate is fixedly connected to the rear floating support through screws, the rear floating support is a cylindrical structure, and the screws are evenly distributed on the annular pressure plate.

[0008] Furthermore, the cross section of the middle connecting seat is an L-shaped structure.

[0009] The beneficial effects of the utility model are as follows: the middle connecting seat, the annular pressure plate and the rear connecting seat are fixedly connected to the rear floating support in sequence, and the steel ball is clamped between the rear floating support and the rear connecting seat, so as to reduce the bearing clamping time, achieve good floating effect, avoid the bearing end face and the outer circle from being non-perpendicular, improve production efficiency, and thus improve the processing quality of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structural diagram of the present utility model. DETAILED DESCRIPTION

[0011] The present invention will be described in detail below with reference to the accompanying drawings. The embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and are not to be construed as limiting the present invention. The terms such as left, center, right, top, and bottom in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product and should not be considered as restrictive.

[0012] A floating support structure of an end face grinding machine for a slender bearing part comprises a rear connecting seat 5, a rear floating support 1 and a steel ball 2. A cylindrical boss 51 is integrally provided on the rear connecting seat 5 between the rear connecting seat 5 and the rear floating support 1. The boss 51 is located in the middle of the rear connecting seat 5. A first groove 52 with a hemispherical cross section is provided on the end face of the boss 51. A second groove 11 with a V-shaped cross section is provided at a position corresponding to the first groove 52 on the rear floating support 1. The first groove 52 and the second groove 11 are arranged facing each other. The steel ball 2 is clamped between the first groove 52 and the second groove 11. One side outer wall of the steel ball 2 is in contact with and slides with the first groove 52. The steel ball 2 is fixedly connected in the second groove 11. An annular pressure plate 4 is fixedly provided at the groove 11, and the annular pressure plate 4 is sleeved on the boss 51. An annular groove 12 is opened at the outer ring of the annular pressure plate 4 on the rear floating support 1, and the outer ring of the annular pressure plate 4 covers the middle part of the annular groove 12. An annular middle connecting seat 3 is provided in the annular groove 12, and the free end of the middle connecting seat 3 is clamped in the clamping groove formed by the annular groove 12 and the annular pressure plate 4. The connecting end of the middle connecting seat 3 extends from the clamping groove and is fixedly connected to the rear connecting seat 5 by a bolt 53. The cross-section of the middle connecting seat 3 is an L-shaped structure. There are floating gaps between the rear connecting seat 5 and the rear floating support 1, between the annular pressure plate 4 and the boss 51, the rear connecting seat 5, and between the middle connecting seat 3 and the annular pressure plate 4 and the annular groove 12.

[0013] In order to facilitate the matching effect between the lifting steel ball 2 and the first groove 52, a grease groove 21 for storing grease is provided at the bottom of the first groove 52; in order to facilitate the connection and fixation between the middle connecting seat 3 and the rear connecting seat 5, the bolt 53 is arranged along the axial direction of the rear connecting seat 5 and is penetrated on the middle connecting seat 3. The rear connecting seat 5 is a cylindrical structure, and the bolts 53 are evenly distributed along the circumference of the rear connecting seat 5; the annular pressure plate 4 is fixedly connected to the rear floating support 1 by screws 41. The rear floating support 1 is a cylindrical structure, and the screws 41 are evenly distributed on the annular pressure plate 4; in addition, a wear-resistant metal block 13 is embedded in the rear floating support 1.

[0014] During assembly, first place the free end of the middle connecting seat 3 into the annular groove 12, and then fix the annular pressure plate 4 to the rear floating support 1 by means of screws 41, while making the free end of the middle connecting seat 3 clamped in the clamping groove surrounded by the annular pressure plate 4 and the annular groove 12; then clamp the steel ball 2 between the rear floating support 1 and the rear connecting seat 5, and fix the rear connecting seat 5 to the middle connecting seat 3 by means of bolts 53, so that the rear floating support 1 slides along the spherical surface of the steel ball 2 under the support of the steel ball 2, thereby realizing the floating of the rear floating support 1.

[0015] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A floating support structure for an end face grinder of a slender bearing part, comprising a rear connecting seat, a rear floating support and a steel ball, characterized in that: A boss is integrally provided on the rear connecting seat at a position between the rear connecting seat and the rear floating support. The boss is located in the middle of the rear connecting seat. A first groove with a hemispherical cross section is provided on the end face of the boss. A second groove with a V-shaped cross section is provided at a position corresponding to the first groove on the rear floating support. The first groove and the second groove are arranged opposite to each other. The steel ball is clamped between the first groove and the second groove. One side outer wall of the steel ball fits and slides with the first groove. The steel ball is fixedly connected to the second groove. An annular pressure plate is fixedly provided at the second groove on the rear floating support. The annular pressure plate is sleeved on the boss, and an annular groove is opened on the outer ring of the annular pressure plate on the rear floating support. The outer ring of the annular pressure plate covers the middle part of the annular groove. An annular middle connecting seat is provided in the annular groove. The free end of the middle connecting seat is clamped in the clamping groove formed by the annular groove and the annular pressure plate. The connecting end of the middle connecting seat extends out from the clamping groove and is fixedly connected to the rear connecting seat by bolts. Floating gaps are left between the rear connecting seat and the rear floating support, between the annular pressure plate and the boss, the rear connecting seat, and between the middle connecting seat and the annular pressure plate and the annular groove.

2. The floating support structure of the end face grinding machine for slender bearing parts according to claim 1, characterized in that: A grease groove for storing grease is provided at the bottom of the first groove.

3. The floating support structure of the end face grinding machine for slender bearing parts according to claim 1, characterized in that: The bolts are arranged along the axial direction of the rear connecting seat and penetrate the middle connecting seat. The rear connecting seat is a cylindrical structure, and the bolts are evenly distributed along the circumference of the rear connecting seat.

4. The floating support structure of the end face grinding machine for slender bearing parts according to claim 1, characterized in that: The annular pressure plate is fixedly connected to the rear floating support by screws. The rear floating support is a cylindrical structure, and the screws are evenly distributed on the annular pressure plate.

5. The floating support structure of the end face grinding machine for slender bearing parts according to claim 1, characterized in that: The cross section of the middle connecting seat is an L-shaped structure.

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