Bearing raceway trimming device

Abstract

A bearing raceway trimming device comprises a rack, a linear trimming assembly and an arc trimming assembly are arranged on the rack, the rack is slidably connected with a sliding plate, the linear trimming assembly is installed on the sliding plate, and the linear trimming assembly comprises a linear trimming pen and a carriage slidably connected with the sliding plate. The linear trimming pen can move in the direction perpendicular to the sliding direction of the dragging plate and can be fixed. The sliding plate is fixedly connected with a supporting frame, the supporting frame comprises two oppositely-arranged side plates, the top ends of the two side plates are fixedly connected through a top plate, the two side plates and the top plate define a containing space capable of containing the linear trimming assembly, the arc trimming assembly is installed on the top plate, and the arc trimming device is wide in application range and high in trimming precision.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing raceway dressing, in particular to a bearing raceway dressing device. Background Art

[0002] Dressers are one type of bearing grinding equipment, mostly used for grinding the inner surface of bearings. However, there are many types of bearings, and existing dresser equipment has a single function. When grinding the outer raceway of single-row or double-row cylindrical or tapered rollers, deep groove ball bearings, angular contact ball bearings, four-point angular contact ball bearings, and spherical roller bearings, a corresponding dresser is required. The dresser has a small application range and a high equipment investment cost. In the prior art, there are also devices that integrate the two dressers together, but the grinding accuracy of the integrated equipment cannot be guaranteed. Utility Model Content

[0003] In order to solve the problem of small application range and low precision of the dresser in the prior art, the utility model provides a bearing raceway dressing device, which can grind various bearing raceways, has a wide application range and high dressing precision.

[0004] In order to achieve the above-mentioned purpose, the specific scheme adopted by the utility model is: a bearing raceway dressing device, including a frame, on which a straight line dressing component and a circular arc dressing component are arranged, the frame is slidably connected to a sliding plate, the straight line dressing component is mounted on the sliding plate, the straight line dressing component includes a straight line dressing pen and a slide plate slidably connected to the sliding plate, the straight line dressing pen can move in a direction perpendicular to the sliding direction of the slide plate and can be fixed; a support frame is fixedly connected to the sliding plate, the support frame includes two oppositely arranged side panels, the top ends of the two side panels are fixedly connected by a top plate, the two side panels and the top plate enclose a storage space that can accommodate the straight line dressing component, and the circular arc dressing component is mounted on the top plate.

[0005] As an optimization solution for the above-mentioned bearing raceway dressing device: the sliding plate is provided with a horizontal driving assembly for driving the slide plate to slide, the horizontal driving assembly includes a moving ring and a lead screw, the lead screw passes through the moving ring and can drive the moving ring to move horizontally back and forth, the slide plate is fixedly connected to the outer wall of the moving ring, and the lead screw is driven by a driving motor.

[0006] As another optimization scheme of the above-mentioned bearing raceway dressing device: a connecting block fixedly connected to the straight line dressing pen is provided on the drag plate, two parallel slide grooves perpendicular to its moving direction are opened on the drag plate, a slider matching the slide groove is fixedly connected to the connecting block, and the connecting block can slide along the slide groove and can be fixed.

[0007] As another optimization scheme of the above-mentioned bearing raceway dressing device: the arc dressing assembly includes a connecting seat and a rotating shaft rotatably connected to the connecting seat, the connecting seat is slidably connected to the top plate and can be fixed, the top end of the rotating shaft is connected to a driving source for driving its rotation, and the bottom end of the rotating shaft is provided with an arc dressing pen.

[0008] As another optimization scheme of the above-mentioned bearing raceway dressing device: a first connecting plate is fixedly connected to the top plate, a first threaded rod is rotatably connected to the first connecting plate, a threaded hole matching the first threaded rod is provided on the connecting seat, and the first threaded rod can push the connecting seat to slide on the top plate during rotation.

[0009] As another optimization scheme of the above-mentioned bearing raceway dressing device: a fixed shaft that rotates synchronously with the rotating shaft is provided at the bottom end of the rotating shaft, the axis of the fixed shaft is parallel to the axis of the rotating shaft, and the arc dressing pen is fixedly connected to the bottom end of the fixed shaft.

[0010] As another optimization scheme of the above-mentioned bearing raceway dressing device: the bottom end of the fixed shaft is fixedly connected with a first connecting member and a second connecting member, the arc dressing pen is fixedly connected to the first connecting member, and an adjusting rod is rotatably arranged on the second connecting member. One end of the adjusting rod passes through the second connecting member and then contacts the first connecting member, so that an elastic gap is formed between the first connecting member and the second connecting member.

[0011] As another optimization scheme of the above-mentioned bearing raceway dressing device: a clamping cylinder with an opening in the side wall and an axis parallel to the axis of the rotating shaft is provided at the bottom end of the rotating shaft, clamping plates are fixedly connected on both sides of the opening, bolts are provided between the two clamping plates, and the top end of the fixed shaft can be extended into the clamping cylinder and clamped by the bolts.

[0012] As another optimization scheme of the above-mentioned bearing raceway dressing device: the bottom end of the rotating shaft is fixedly connected to a second connecting plate, and the second connecting plate is rotatably connected to a second threaded rod; the top side wall of the clamping cylinder is fixedly connected to a mounting plate having a threaded hole matching the second threaded rod, and one end of the second threaded rod passes through the second connecting plate and extends into the threaded hole.

[0013] As another optimization scheme of the above-mentioned bearing raceway dressing device: a ruler is fixedly connected to the mounting plate, a marker located above the ruler is fixedly connected to the rotating shaft, and the ruler and the marker cooperate to measure the distance between the axis of the fixed shaft and the axis of the rotating shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a bearing raceway dressing device, wherein a straight line dressing component and an arc dressing component are arranged on a frame. When the arc dressing component is used, the straight line dressing component is located in a containing space, and a straight line dressing pen is slid to move along the sliding direction of a slide plate; when the straight line dressing component is used, the straight line dressing component is restored to its original position, and the arc dressing pen of the arc dressing component is removed, and the two sets of dressing components can be used separately, thus saving space and cost occupied by the equipment; at the same time, the utility model has a wide range of applications, can dress various bearing raceways, and has high dressing accuracy.

[0016] 2. In the present invention, when grinding raceways of different diameters, the distance between the axis of the rotating shaft and the axis of the fixed shaft is adjusted by the second threaded rod, thereby corresponding to raceways of different diameters, so that the present invention has a wide range of applications.

[0017] 3. In the utility model, during the rotation of the adjusting rod, one end of the adjusting rod can push the first connecting member away from the second connecting member or close to the second connecting member, that is, the width of the elastic gap can be changed, thereby achieving slight adjustments to the arc trimming pen and improving the trimming accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 is a cross-sectional view of the arc dressing assembly;

[0020] Figure 3 is a rear view of the arc trimming assembly;

[0021] Figure 4 is a schematic diagram of the structure of a straight line trimming assembly;

[0022] Figure markings: 1. Frame, 101. Sliding plate, 2. Arc trimming assembly, 201. Arc trimming pen, 202. First connecting piece, 203. Second connecting piece, 204. Clamping cylinder, 205. Mounting plate, 206. Second threaded rod, 207. Bearing sleeve, 209. Driving source, 210. Ruler, 211. Rotating shaft, 212. Fixed shaft, 3. Straight line trimming assembly, 301. Straight line trimming pen, 302. Connecting block, 303. Drag plate, 304. Slide groove, 305. Moving ring, 306. Lead screw, 4. Support frame, 401. Side plate, 402. Top plate, 403. First connecting plate, 404. First threaded rod, 5. Connecting seat, 6. Adjusting rod, 7. Elastic gap. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts that are not described and disclosed in detail in the following embodiments of the present invention should be understood as existing technologies that are known or should be known to those skilled in the art, such as the structure of the connecting block, the assembly of the drive motor and the lead screw, the connection method of the lead screw and the housing, the assembly of the drive source and the rotating shaft, etc.

[0024] Example

[0025] A bearing raceway dressing device includes a frame 1, on which a straight line dressing component 3 and an arc dressing component 2 are arranged, the frame 1 includes a bottom plate and a workbench arranged parallel to the bottom plate, the workbench and the bottom plate are fixedly connected by two oppositely arranged support plates, the connection between the workbench and the support plate and between the bottom plate and the support plate is bolted, integrally connected or welded, in this embodiment, the connection between the workbench and the support plate and between the bottom plate and the support plate is welded. The frame 1 is slidably connected with a sliding plate 101, the upper end surface of the workbench is provided with two mutually parallel moving grooves, and the lower end surface of the sliding plate 101 is fixedly connected with a moving block corresponding to the moving groove, so that the sliding plate 101 can move along the workbench and can be fixed, thereby adjusting the position of the straight line dressing component 3 and the arc dressing component 2. The straight line trimming assembly 3 is mounted on the sliding plate 101. The straight line trimming assembly 3 includes a straight line trimming pen 301 and a carriage 303 slidably connected to the sliding plate 101. The straight line trimming pen 301 can move in a direction perpendicular to the sliding direction of the carriage 303 and can be fixed, that is, the straight line trimming pen 301 can move synchronously with the carriage 303 and can also move in a direction perpendicular to the sliding direction of the carriage 303. The sliding plate 101 is fixedly connected with a support frame 4. The support frame 4 includes two oppositely arranged side panels 401. The side panels 401 are perpendicular to the workbench, that is, the side panels 401 extend in the height direction; the top ends of the two side panels 401 are fixedly connected by a top panel 402. The top panel 402 is perpendicular to the side panels 401. The connection between the top panel 402 and the side panels 401 is welding, bolt connection or integral connection. In this embodiment, the connection between the two is integral connection. The two side plates 401 and the top plate 402 enclose a space that can accommodate the straight line trimming component 3. The arc trimming component 2 is installed on the top plate 402. When the arc trimming component 2 needs to be used, the straight line trimming pen 301 moves in a direction perpendicular to the sliding direction of the carriage 303 so that it does not block the use of the arc trimming component 2; when the straight line correction component needs to be used, the straight line trimming pen 301 is slid to its original position and fixed on the carriage 303 so that it moves synchronously with the carriage 303 to work. The straight line trimming component 3 and the arc trimming component 2 are integrated together, and one device can trim the outer ring raceway of single-row or double-row cylindrical or tapered rollers, the outer ring groove of deep groove ball bearings, angular contact ball bearings, four-point angular contact ball bearings, and the outer ring raceway of spherical roller bearings, which means that it has a wide range of applications and saves equipment investment costs; at the same time, it improves the trimming accuracy.

[0026] The connection mode between the carriage 303 and the straight line trimming pen 301 is that the carriage 303 is provided with a connecting block 302 fixedly connected to the straight line trimming pen 301, the carriage 303 is provided with two parallel slide grooves 304 perpendicular to its moving direction, the connecting block 302 is fixedly connected with a slider matched with the slide groove 304, and the connecting block 302 can slide along the slide groove 304 and can be fixed. Figure 4 As shown, the extension direction of the slide 304 is perpendicular to the moving direction of the carriage 303. When the straight trimming assembly 3 is working, the connecting block 302 is fixedly connected to the carriage 303 by bolts, so that the straight trimming pen 301 and the carriage 303 move synchronously to work. When the arc trimming assembly 2 is working, the bolts are unscrewed and the connecting block 302 is moved along the slide 304 to one side of the carriage 303, so that the straight trimming pen 301 does not block the work of the arc trimming assembly 2.

[0027] like Figure 4 As shown, a horizontal driving assembly for driving the carriage 303 to slide is provided on the sliding plate 101, and the horizontal driving assembly includes a moving ring 305 and a lead screw 306. The lead screw 306 passes through the moving ring 305 and can drive the moving ring 305 to reciprocate horizontally. The carriage 303 is fixedly connected to the outer wall of the moving ring 305, and the lead screw 306 is driven by a driving motor. In this embodiment, the horizontal driving assembly is arranged in a housing, and the housing is fixedly connected to the sliding plate 101, and the connection method of the two is bolt connection; the driving motor is arranged in the housing and drives the lead screw 306 to rotate forward or reversely, and during the rotation of the lead screw 306, the moving ring 305 is driven to reciprocate along the lead screw 306, thereby driving the carriage 303 to reciprocate.

[0028] like Figure 2As shown, the arc trimming assembly 2 includes a connecting seat 5 and a rotating shaft 211 rotatably connected to the connecting seat 5. The connecting seat 5 is slidably connected to the top plate 402 and can be fixed. Specifically, the connecting seat 5 can slide to the left or right along the top plate 402. When the diameter of the bearing raceway is large, the connecting seat 5 slides to the right to ensure the movement space of the arc trimming pen 201 in the arc trimming assembly 2; a first connecting plate 403 is fixedly connected to the top plate 402, and the first connecting plate 403 is an "L"-shaped plate. A first threaded rod 404 is rotatably connected to the first connecting plate 403. A threaded hole matching the first threaded rod 404 is provided on the connecting seat 5. During the rotation of the first threaded rod 404, the connecting seat 5 can be pushed to slide on the top plate 402. The first threaded rod 404 includes a smooth portion and a threaded portion. A through hole is provided on the first connecting plate 403, and the smooth portion is penetrated in the through hole. Limiting rings are provided on both sides of the through hole to prevent the first threaded rod 404 from moving left and right. The threaded portion extends into the threaded hole, and when the first threaded rod 404 is rotated, the connecting seat 5 can be driven to move along the length direction of the first threaded rod 404. The top of the rotating shaft 211 is connected to a driving source 209 for driving its rotation, and the bottom of the rotating shaft 211 is provided with an arc trimming pen 201. A through hole is provided on the side of the connecting seat 5 away from the first threaded seat, and a bearing sleeve 207 is fixedly connected in the through hole. The connection method of the two is interference fit; the bearing sleeve 207 and the rotating shaft 211 are rotatably connected through a bearing. The top of the rotating shaft 211 extends out of the bearing sleeve 207 and is connected to the driving source 209, and the bottom of the rotating shaft 211 extends out of the bearing sleeve 207 and is connected to the arc trimming pen 201.

[0029] The connection mode between the rotating shaft 211 and the arc trimming pen 201 is that the bottom end of the rotating shaft 211 is provided with a fixed shaft 212 that rotates synchronously therewith, the axis of the fixed shaft 212 is parallel to the axis of the rotating shaft 211, and the arc trimming pen 201 is fixedly connected to the bottom end of the fixed shaft 212. Specifically, the bottom end of the rotating shaft 211 is provided with a clamping cylinder 204 with an opening on the side wall and an axis parallel to the axis of the rotating shaft 211, the opening extends along the height direction of the clamping cylinder 204 and penetrates the top and bottom of the clamping cylinder 204, so that the fixed shaft 212 can be inserted into the clamping cylinder 204, and clamping plates are fixedly connected on both sides of the opening, and the connection mode between the two is an integral connection, and bolts are provided between the two clamping plates, and the top end of the fixed shaft 212 can be inserted into the clamping cylinder 204 and clamped by the bolts. The height of the arc trimming pen 201 can be controlled according to the length of the fixed shaft 212 inserted into the clamping cylinder 204, so that the utility model has a wide range of applications. The clamping cylinder 204 is connected to the rotating shaft 211, and the clamping cylinder 204 can move in a direction perpendicular to the axis of the rotating shaft 211, thereby adjusting the distance between the axis of the clamping cylinder 204 and the axis of the rotating shaft 211 to correspond to bearing raceways of different diameters, further increasing the scope of application of the utility model. Specifically, Figure 2As shown, the top side wall of the clamping cylinder 204 is fixedly connected to a mounting plate 205 having a threaded hole that matches the second threaded rod 206. The mounting plate 205 and the clamping cylinder 204 are connected in an integral manner or by welding. In this embodiment, the two are connected by welding. The bottom end of the rotating shaft 211 is fixedly connected to a second connecting plate, and the second connecting plate is rotatably connected to the second threaded rod 206; one end of the second threaded rod 206 passes through the second connecting plate and extends into the threaded hole. The length of the second threaded rod 206 extending into the threaded hole can control the distance between the axis of the clamping cylinder 204 and the axis of the rotating shaft 211, thereby adjusting the diameter of the motion trajectory of the arc finishing pen 201 to correspond to bearing raceways of different diameters. As shown Figure 3 As shown, a scale 210 is fixedly connected to the mounting plate 205 , and a mark located above the scale 210 is fixedly connected to the rotating shaft 211 . The scale 210 and the mark cooperate to measure the distance between the axis of the fixed shaft 212 and the axis of the rotating shaft 211 .

[0030] The bottom end of the fixed shaft 212 is fixedly connected with the first connecting member 202 and the second connecting member 203. The arc trimming pen 201 is fixedly connected with the first connecting member 202. The second connecting member 203 is rotatably provided with an adjusting rod 6. One end of the adjusting rod 6 passes through the second connecting member 203 and contacts the first connecting member 202, so that an elastic gap 7 is formed between the first connecting member 202 and the second connecting member 203. The outer wall of the adjusting rod 6 is provided with an external thread, and a threaded hole matching the external thread is provided on the second connecting rod. The adjusting rod 6 is arranged in the threaded hole, and its right end extends out of the threaded hole and contacts the first connecting member 202. During the rotation of the adjusting rod 6, the length of the right end thereof extending out changes, causing the width of the elastic gap 7 to change, thereby achieving fine adjustment of the diameter of the motion trajectory of the arc trimming pen 201 and improving the trimming accuracy.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing raceway dressing device, comprising a frame (1), on which a straight line dressing component (3) and an arc dressing component (2) are arranged, characterized in that: The frame (1) is slidably connected to a sliding plate (101), a straight line trimming assembly (3) is mounted on the sliding plate (101), the straight line trimming assembly (3) comprises a straight line trimming pen (301) and a drag plate (303) slidably connected to the sliding plate (101), the straight line trimming pen (301) can move in a direction perpendicular to the sliding direction of the drag plate (303) and can be fixed; the sliding plate (101) is fixedly connected to a support frame (4), the support frame (4) comprises two side plates (401) arranged opposite to each other, the top ends of the two side plates (401) are fixedly connected via a top plate (402), the two side plates (401) and the top plate (402) enclose a storage space capable of accommodating the straight line trimming assembly (3), and the arc trimming assembly (2) is mounted on the top plate (402).

2. A bearing raceway dressing device according to claim 1, characterized in that: The sliding plate (101) is provided with a horizontal driving assembly for driving the carriage (303) to slide. The horizontal driving assembly comprises a moving ring (305) and a lead screw (306). The lead screw (306) passes through the moving ring (305) and can drive the moving ring (305) to move horizontally back and forth. The carriage (303) is fixedly connected to the outer side wall of the moving ring (305). The lead screw (306) is driven by a driving motor.

3. A bearing raceway dressing device according to claim 1, characterized in that: The carriage (303) is provided with a connecting block (302) fixedly connected to the straight line trimming pen (301); the carriage (303) is provided with two parallel sliding grooves (304) perpendicular to its moving direction; a sliding block matched with the sliding groove (304) is fixedly connected to the connecting block (302); the connecting block (302) can slide along the sliding groove (304) and can be fixed.

4. A bearing raceway dressing device according to claim 1, characterized in that: The circular arc trimming assembly (2) comprises a connecting seat (5) and a rotating shaft (211) rotatably connected to the connecting seat (5); the connecting seat (5) is slidably connected to a top plate (402) and can be fixed; the top end of the rotating shaft (211) is connected to a driving source (209) for driving the rotating shaft (211) to rotate; and the bottom end of the rotating shaft (211) is provided with a circular arc trimming pen (201).

5. A bearing raceway dressing device as claimed in claim 4, characterized in that: The top plate (402) is fixedly connected to a first connecting plate (403), the first connecting plate (403) is rotatably connected to a first threaded rod (404), a threaded hole matching the first threaded rod (404) is provided on the connecting seat (5), and the first threaded rod (404) can push the connecting seat (5) to slide on the top plate (402) during rotation.

6. A bearing raceway dressing device as claimed in claim 4, characterized in that: The bottom end of the rotating shaft (211) is provided with a fixed shaft (212) which rotates synchronously therewith, the axis of the fixed shaft (212) is parallel to the axis of the rotating shaft (211), and the arc trimming pen (201) is fixedly connected to the bottom end of the fixed shaft (212).

7. A bearing raceway dressing device according to claim 6, characterized in that: The bottom end of the fixed shaft (212) is fixedly connected to a first connecting member (202) and a second connecting member (203); the arc trimming pen (201) is fixedly connected to the first connecting member (202); an adjusting rod (6) is rotatably arranged on the second connecting member (203); one end of the adjusting rod (6) passes through the second connecting member (203) and then contacts the first connecting member (202), so that an elastic gap (7) is formed between the first connecting member (202) and the second connecting member (203).

8. A bearing raceway dressing device according to claim 6, characterized in that: The bottom end of the rotating shaft (211) is provided with a clamping cylinder (204) whose side wall has an opening and whose axis is parallel to the axis of the rotating shaft (211), and clamping plates are fixedly connected on both sides of the opening, and bolts are provided between the two clamping plates. The top end of the fixed shaft (212) can extend into the clamping cylinder (204) and be clamped by the bolts.

9. A bearing raceway dressing device according to claim 8, characterized in that: The bottom end of the rotating shaft (211) is fixedly connected to a second connecting plate, and the second connecting plate is rotatably connected to a second threaded rod (206); the top side wall of the clamping cylinder (204) is fixedly connected to a mounting plate (205) having a threaded hole matching the second threaded rod (206), and one end of the second threaded rod (206) passes through the second connecting plate and extends into the threaded hole.

10. A bearing raceway dressing device according to claim 9, characterized in that: A scale (210) is fixedly connected to the mounting plate (205), and a mark located above the scale (210) is fixedly connected to the rotating shaft (211). The scale (210) and the mark cooperate to measure the distance between the axis of the fixed shaft (212) and the axis of the rotating shaft (211).

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