Positioning structure of long and thin bearing part end face grinding machine

Abstract

The utility model provides a positioning structure of a slender bearing part end face grinding machine, which comprises a rear support, a lower support, an adjusting pinch roller and a fixed pinch roller, the rear support comprises a support seat and a rotating shaft rotatably mounted on the support seat, a pull rod is arranged on the rotating shaft along the axis in a penetrating manner, and the front end of the pull rod is in threaded fit with a positioning tool. The positioning tool comprises a sample piece with the same specification as the bearing standard piece, the top end of the lower support is supported on the lower side of the middle of the outer circumferential face of the sample piece, and the adjusting pressing wheel and the fixed pressing wheel are located on the left side and the right side of the middle of the outer circumferential face of the sample piece respectively and attached to the sample piece. The positioning tool can be rapidly and fixedly connected to the rear support through the pull rod, the position of a bearing of the corresponding specification to be machined is determined through the lower support, the fixed pressing wheel and the movable pressing wheel, the end face of the bearing can be ground by detaching the positioning tool and installing the bearing, and therefore the bearing clamping time is shortened, the production efficiency is improved, and precise bearing positioning is achieved. And the machining quality of the same batch of bearings is further improved.

Description

Technical Field

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

[0002] The bearing end face grinder is a specialized production equipment used for machining the end faces of rolling elements. During machining, the bearing is positioned to the machining position under the action of the rear support, lower support, and adjustment pressure wheel. At this time, the center line of the bearing must intersect with the axis of rotation of the grinding wheel in the same plane. The feed pressure wheel then moves to press the bearing against the fixed pressure wheel. The rotation of the two pressure wheels drives the bearing to rotate, and the end face is ground using the Fancheng method. The positioning of the bearing directly affects the shape and accuracy of the ground bearing end face. Since the bearing and the rear support and lower support are not fixed, directly placing the bearing on the rear support and lower support cannot ensure that the center line of the bearing intersects with the axis of rotation of the grinding wheel in the same plane, that is, the machining accuracy cannot be guaranteed. In this case, the position of the bearing must be repeatedly adjusted, which is inefficient. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a positioning structure for an end face grinder of an elongated bearing part, the purpose of which is to facilitate the rapid positioning of the bearing on the rear support and the lower support, thereby improving work efficiency.

[0004] The adjusting wheel and the fixed pressure wheel are respectively located on the left and right sides of the middle part of the middle part of the middle part and are engaged with the adjusting wheel and the fixed pressure wheel. The rear support is located behind the rear support. The rear support includes a support seat and a rotating shaft rotatably mounted on the support seat. A pull rod is provided on the rotating shaft along its axis, and a rear end portion of the pull rod is blocked on the rear end face of the rotating shaft. A positioning tool is matched with a front end thread of the pull rod. The positioning tool includes a sample with the same specifications as the bearing standard part. A first fixed shaft is integrated on the end face of the small head end of the sample. The first fixed shaft is coaxially arranged with the sample. The free end of the first fixed shaft cooperates with the pull rod thread, and the free end face of the first fixed shaft is fitted with the end face of the rotating shaft. The top end of the lower support is supported on the lower side of the middle part of the outer circumferential surface of the sample. The adjusting wheel and the fixed pressure wheel are respectively located on the left and right sides of the middle part of the outer circumferential surface of the sample and are fitted with it. The axes of the sample, the adjusting wheel and the fixed pressure wheel are located in the same plane.

[0005] Furthermore, a second fixed shaft is integrally provided on the end face of the large end of the sample, the second fixed shaft is coaxially arranged with the sample, and the structure of the second fixed shaft is the same as that of the first fixed shaft.

[0006] Further: a circular boss is provided on the rotating shaft, the boss is coaxially arranged with the rotating shaft, a groove is opened on the first fixed shaft at a position corresponding to the boss, the boss is located in the groove and matches it, and the pull rod passes through the boss and then into the bottom surface of the groove and cooperates with the first fixed shaft thread.

[0007] Furthermore, the outer diameter of the first fixed shaft is smaller than or equal to the minimum outer diameter of the sample.

[0008] Furthermore, a through hole is provided on the first fixed shaft near the sample, and an axis of the through hole intersects with an axis of the first fixed shaft and is perpendicular to each other.

[0009] The beneficial effects of the utility model are as follows: the positioning tool can be quickly fixed and connected to the rear support through the pull rod, and the position of the bearing of the corresponding specification to be processed can be determined through the lower support, the fixed pressure wheel and the movable pressure wheel. The positioning tool is removed and the bearing is installed and the bearing end face can be ground, thereby reducing the clamping time of the bearing, improving production efficiency, realizing precise positioning of the bearing, and thus improving the processing quality of bearings in the same batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the utility model from a top view;

[0012] Figure 3 for Figure 2 A magnified view of the structure of area A in the middle. DETAILED DESCRIPTION

[0013] 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.

[0014] A positioning structure of an end face grinder for an elongated bearing part comprises a rear support, a lower support 4, an adjusting pressure wheel 3 and a fixed pressure wheel 1. The adjusting pressure wheel 3 and the fixed pressure wheel 1 are arranged in parallel on the left and right sides. The lower support 4 is located between the adjusting pressure wheel 3 and the fixed pressure wheel 1. The rear support is located behind the lower support 4. The rear support comprises a support seat 5 and a rotating shaft 51 rotatably mounted on the support seat 5. A pull rod 6 is provided along the axis of the rotating shaft 51. The rear end of the pull rod 6 is stopped on the rear end face of the rotating shaft 5. A positioning tool is provided at the front end thread of the pull rod 6. The positioning tool comprises a sample 21 with the same specifications as the bearing standard part. A first screw thread is integrated on the small end face of the sample 21. A fixed shaft 22, the first fixed shaft 22 is coaxially arranged with the sample 21, the free end of the first fixed shaft 22 is threadedly engaged with the pull rod 6, the free end face of the first fixed shaft 22 is fitted with the end face of the rotating shaft 51, the top end of the lower support 4 is supported on the lower side of the middle part of the outer circumferential surface of the sample 21, the adjusting pressure wheel 3 and the fixed pressure wheel 1 are respectively located on the left and right sides of the middle part of the outer circumferential surface of the sample and fit therewith, and the axes of the sample 21, the adjusting pressure wheel 3 and the fixed pressure wheel 1 are located in the same plane; a through hole 24 is provided on the first fixed shaft 22 near the sample 21, the axis of the through hole 24 intersects with the axis of the first fixed shaft 22 and is perpendicular to each other, and the through hole 24 is used for disassembling and assembling the sample 21.

[0015] To facilitate the processing of the small head end face of the bearing, a second fixed shaft is integrated on the large head end face of the sample 21, and the second fixed shaft is coaxially arranged with the sample 21. The second fixed shaft has the same structure as the first fixed shaft 22; to facilitate production, the outer diameter of the first fixed shaft 22 is less than or equal to the minimum outer diameter of the sample 21; to facilitate the positioning of the first fixed shaft 22 on the rotating shaft 51, a circular boss 52 is provided on the rotating shaft 51, and the boss 52 is coaxially arranged with the rotating shaft 51. A groove 23 is opened on the first fixed shaft 22 at a position corresponding to the boss 52. The boss 52 is located in the groove 23 and matches it. After the pull rod 6 passes through the boss 52, it penetrates into the bottom surface of the groove 23 and is threadedly engaged with the first fixed shaft 22.

[0016] When in use, the middle part of the positioning tool (sample 21) is exactly the same as the size and shape of the bearing, and serves to replace the bearing and position the bearing. One end of the positioning tool is fixed to the rotating shaft 51 of the rear support through the pull rod 6, and the position of the fixed pressure wheel 1 is adjusted so that it is in full contact with the sample 21. Then, the fixed pressure wheel 1 is fixed, and the adjustment pressure wheel 3 is moved so that it is in full contact with the sample 21. The lower support 4 is adjusted up and down so that it is in full contact with the sample 21. At this time, the spatial position determined by the lower support 4, the fixed pressure wheel, and the adjustment pressure wheel 3 is the position of the bearing of the corresponding specification to be processed. Remove the positioning tool, install the bearing, and then grind the bearing end face; when grinding the large and small end faces of the tapered bearing, you only need to swap the positions of the two ends of the positioning tool and readjust the fixed pressure wheel 1, the lower support 4, and the adjustment pressure wheel 3.

[0017] 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 positioning structure for an end face grinder of an elongated bearing part, comprising a rear support, a lower support, an adjusting pressure wheel, and a fixed pressure wheel, wherein the adjusting pressure wheel and the fixed pressure wheel are arranged in parallel on the left and right sides, the lower support is located between the adjusting pressure wheel and the fixed pressure wheel, and the rear support is located behind the lower support. The rear support comprises a support base and a rotating shaft rotatably mounted on the support base, and is characterized in that: A pull rod is provided on the rotating shaft along its axis, and the rear end of the pull rod is stopped on the rear end face of the rotating shaft, and a positioning tool is matched with the front end thread of the pull rod. The positioning tool includes a sample with the same specifications as the bearing standard part, and a first fixed shaft is integrated on the end face of the small head end of the sample. The first fixed shaft is coaxially arranged with the sample, and the free end of the first fixed shaft is matched with the pull rod thread. The free end face of the first fixed shaft is fitted with the end face of the rotating shaft, and the top end of the lower support is supported on the lower side of the middle part of the outer circumferential surface of the sample. The adjusting pressure wheel and the fixed pressure wheel are respectively located on the left and right sides of the middle part of the outer circumferential surface of the sample and fit with it. The axes of the sample, the adjusting pressure wheel and the fixed pressure wheel are located in the same plane.

2. The positioning structure of the end face grinding machine for an elongated bearing component according to claim 1, characterized in that: A second fixed shaft is integrally provided on the end face of the large head of the sample. The second fixed shaft is coaxially arranged with the sample. The second fixed shaft has the same structure as the first fixed shaft.

3. The positioning structure of the end face grinding machine for an elongated bearing component according to claim 1 or 2, characterized in that: A circular boss is provided on the rotating shaft, and the boss is coaxially arranged with the rotating shaft. A groove is opened on the first fixed shaft at a position corresponding to the boss. The boss is located in the groove and matches it. After the pull rod passes through the boss, it penetrates into the bottom surface of the groove and cooperates with the first fixed shaft thread.

4. The positioning structure of the end face grinding machine for an elongated bearing component according to claim 1 or 2, characterized in that: The outer diameter of the first fixed shaft is smaller than or equal to the minimum outer diameter of the sample.

5. The positioning structure of the end face grinding machine for an elongated bearing component according to claim 1, characterized in that: A through hole is provided on the first fixed shaft close to the sample, and the axis of the through hole intersects with the axis of the first fixed shaft and is perpendicular to each other.

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