Bearing polishing clamp

Abstract

The utility model relates to the technical field of bearing machining, in particular to a bearing polishing clamp which comprises a sleeve and further comprises a plurality of clamping strips, and the clamping strips are arranged on the sleeve in a sliding mode. The displacement mechanism is arranged on the sleeve; the limiting mechanism is arranged on the sleeve; the bearing polishing clamp is different from the prior art, when a worker uses the bearing polishing clamp, the displacement mechanism is used for driving the multiple clamping strips to displace, the inner side of a bearing workpiece is clamped, the limiting mechanism is used for controlling the displacement mechanism, the displacement of the multiple clamping strips is triggered, and the positions of the multiple clamping strips are limited; and a bearing workpiece on the sleeve is clamped, so that deflection and separation of the bearing are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a bearing polishing fixture. Background Art

[0002] Bearing polishing is an important measure to ensure bearing performance and increase bearing service life. When manually polishing bearings, grinding wheels are often used to grind and polish the outer wall of the bearing. A sleeve is needed to fit the bearing. The outer wall diameter of the sleeve is slightly smaller than the inner wall diameter of the bearing. The sleeve drives the bearing forward. Under the relative friction of the grinding wheel, the bearing workpiece is relatively deflected on the sleeve to complete the grinding and polishing of the outer wall of the bearing workpiece.

[0003] In the existing process of grinding and polishing the outer wall of a bearing workpiece with the help of a sleeve and a grinding wheel, when part of the bearing workpiece is not completely polished, it is necessary to retract the sleeve to complete the polishing again. However, due to the relative friction of the grinding wheel, the bearing workpiece will produce relative deflection. When the sleeve is retracted, this friction force will also cause relative displacement between the bearing workpiece and the sleeve, affecting the retraction of the bearing workpiece. Therefore, we propose a bearing polishing fixture. Utility Model Content

[0004] A technical problem to be solved by the present application is: how to clamp the bearing workpiece on the sleeve to prevent the bearing from deflecting and disengaging.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a bearing polishing fixture, including a sleeve, and also including:

[0006] A clamping strip, wherein a plurality of the clamping strips are provided, and the plurality of the clamping strips are all slidably arranged on the sleeve;

[0007] A displacement mechanism, used for driving the plurality of clamping strips to move and clamp the inner side of the bearing workpiece, and arranged on the sleeve;

[0008] The limiting mechanism is used to control the displacement mechanism, trigger the displacement of the plurality of clamping strips and limit the position, and is arranged on the sleeve.

[0009] In some embodiments, the displacement mechanism includes a fixed plate disposed on the sleeve, a plurality of connecting plates are slidably disposed on the fixed plate, and the plurality of connecting plates are respectively connected to a plurality of clamping strips;

[0010] The fixing plate is provided with an extension assembly for driving the plurality of connecting plates to move, thereby driving the plurality of clamping strips to move.

[0011] In some embodiments, the extension assembly includes a rotating rod rotatably disposed on a fixed plate, the rotating rod is rotatably connected to the sleeve, a rotating plate is disposed on the rotating rod, a plurality of connecting strips are rotatably disposed on the rotating plate, and the plurality of connecting strips are rotatably connected to the plurality of connecting plates respectively.

[0012] In some embodiments, the limiting mechanism includes a displacement rod slidably disposed on the sleeve, and a pressing plate is disposed at one end of the displacement rod;

[0013] The rotating rod is provided with a rotating assembly for driving the rotating rod and the rotating plate to rotate;

[0014] The rotating rod is provided with a rebound component for assisting the rotating rod and the rotating plate to return to their original positions.

[0015] In some embodiments, the rotating assembly includes a gear disposed on a rotating rod, a cross bar is disposed on the displacement rod, a rack is disposed on the cross bar, the rack is meshed with the gear, a vertical rod is disposed on the rack, and the vertical rod is slidably connected to the sleeve.

[0016] In some embodiments, the rebound assembly includes a fixing seat arranged on the sleeve, a coil spring is arranged on the fixing seat, an outer end of the coil spring is connected to the fixing seat, an inner end of the coil spring is connected to the rotating rod, and a spring is sleeved on the vertical rod.

[0017] In some embodiments, an L-shaped strip is provided on the sleeve, the pressing plate is rotatably connected to the displacement rod, and a protrusion is provided on the pressing plate.

[0018] The utility model has at least the following beneficial effects:

[0019] Different from the prior art, when the staff uses this bearing polishing fixture, they utilize the displacement mechanism to drive the displacement of multiple clamping strips to clamp the inner side of the bearing workpiece, utilize the limiting mechanism to control the displacement mechanism, trigger the displacement of the multiple clamping strips and limit the position, and during the retraction process of the sleeve, clamp the bearing workpiece on the sleeve to prevent the bearing from deflecting and detaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the local cross-section structure;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the local cross-section structure;

[0023] Figure 4This is a schematic diagram of the displacement mechanism structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the fixing seat and coil spring structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the rotating assembly of the utility model;

[0026] Figure 7 This is a schematic diagram of the L-shaped strip and protrusion structure in Example 2 of the utility model.

[0027] In the figure: 1. sleeve; 2. clamping strip; 3. displacement mechanism; 31. fixed plate; 32. connecting plate; 4. limiting mechanism; 41. displacement rod; 42. pressing plate; 5. extension assembly; 51. rotating rod; 52. rotating plate; 53. connecting strip; 6. rotating assembly; 61. gear; 62. cross bar; 63. rack; 64. vertical bar; 7. rebound assembly; 71. fixed seat; 72. coil spring; 73. spring; 8. L-shaped strip; 9. bump. DETAILED DESCRIPTION

[0028] 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 in 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.

[0029] Example 1

[0030] See also Figure 1-6 , the utility model provides a technical solution:

[0031] A bearing polishing fixture includes a sleeve 1, the outer diameter of the sleeve 1 is slightly smaller than the inner diameter of the bearing workpiece, the bearing workpiece is sleeved on the sleeve 1, and the bearing workpiece can be relatively deflected around the sleeve 1 under the relative friction of the grinding wheel. The specific grinding principle and steps are not repeated here, and also include:

[0032] A clamping strip 2, wherein a plurality of clamping strips 2 are provided, and the plurality of clamping strips 2 are all slidably provided on the sleeve 1;

[0033] The displacement mechanism 3 is used to drive the plurality of clamping strips 2 to move and clamp the inner side of the bearing workpiece, and is arranged on the sleeve 1;

[0034] The limiting mechanism 4 is used to control the displacement mechanism 3 , trigger the displacement of the plurality of clamping strips 2 and limit the position, and is disposed on the sleeve 1 .

[0035] The displacement mechanism 3 includes a fixed plate 31 arranged on the sleeve 1, and a plurality of connecting plates 32 are slidably arranged on the fixed plate 31, and the plurality of connecting plates 32 are respectively connected to the plurality of clamping strips 2; a guide groove corresponding to the connecting plate 32 is arranged on the fixed plate 31, and the guide groove guides and limits the displacement of the clamping strip 2; the plurality of connecting plates 32 drive the corresponding clamping strips 2 to displace, and after the plurality of clamping strips 2 are displaced outward, the inner wall of the bearing workpiece is clamped to prevent it from deflecting; an anti-slip and anti-scratch gasket can be added to the side of the clamping strip 2 that contacts and fits the inner wall of the bearing workpiece, so as to increase the friction between them during clamping, and at the same time avoid scratching the inner wall of the bearing workpiece, thereby avoiding damage to the workpiece.

[0036] An extension component 5 is provided on the fixed plate 31, which is used to drive the multiple connecting plates 32 to move, and then drive the multiple clamping strips 2 to move; the extension component 5 includes a rotating rod 51 rotatably set on the fixed plate 31, the rotating rod 51 is rotatably connected to the sleeve 1, and a rotating plate 52 is provided on the rotating rod 51, and a plurality of connecting strips 53 are rotatably set on the rotating plate 52, and the plurality of connecting strips 53 are respectively rotatably connected to the plurality of connecting plates 32; the rotating rod 51 rotates, driving the rotating plate 52 to rotate, driving the connecting strips 53 to deflect, and through the transmission of the plurality of connecting strips 53, driving the plurality of connecting plates 32 to move, and then driving the plurality of clamping strips 2 to move.

[0037] The limiting mechanism 4 comprises a displacement rod 41 slidably arranged on the sleeve 1 , and a pressing plate 42 is arranged at one end of the displacement rod 41 ; pressing the pressing plate 42 drives the displacement rod 41 to move.

[0038] A rotating assembly 6 is provided on the rotating rod 51, which is used to drive the rotating rod 51 and the rotating plate 52 to rotate; the rotating assembly 6 includes a gear 61 arranged on the rotating rod 51, a cross bar 62 is provided on the displacement rod 41, a rack 63 is provided on the cross bar 62, the rack 63 is meshed with the gear 61, a vertical rod 64 is provided on the rack 63, and the vertical rod 64 is slidably connected with the sleeve 1; the displacement rod 41 moves, driving the cross bar 62 and the rack 63 to move, and under the meshing action, the rack 63 drives the gear 61 and the rotating rod 51 to rotate; the vertical rod 64 supports and guides the displacement of the rack 63, thereby enhancing the stability of the overall structure.

[0039] A rebound component 7 is provided on the rotating rod 51, which is used to assist the rotating rod 51 and the rotating plate 52 to return to their original positions; the rebound component 7 includes a fixed seat 71 arranged on the sleeve 1, and a coil spring 72 is provided on the fixed seat 71. The outer end of the coil spring 72 is connected to the fixed seat 71, and the inner end of the coil spring 72 is connected to the rotating rod 51. A spring 73 is sleeved on the vertical rod 64; after the rotating rod 51 and the rotating plate 52 rotate, after the external force is removed, the coil spring 72 assists the rotating rod 51 and the rotating plate 52 to return to their original positions; similarly, the spring 73 assists the rack 63 and the cross bar 62 to return to their original positions.

[0040] When in use, the outer diameter of the sleeve 1 is slightly smaller than the inner diameter of the bearing workpiece. The bearing workpiece is sleeved on the sleeve 1. Under the relative friction of the rotation of the grinding wheel, the bearing workpiece can be relatively deflected around the sleeve 1; when the bearing workpiece needs to be clamped, the pressing plate 42 is pressed to drive the displacement rod 41, the cross bar 62, and the rack 63 to move. Under the meshing action, the rack 63 drives the gear 61, the rotating rod 51, and the rotating plate 52 to rotate. The rotation of the rotating plate 52 drives the connecting bar 53 to deflect. Through the transmission of multiple connecting bars 53, multiple connecting plates 32 are driven to move, and then multiple clamping strips 2 are driven to move. After the multiple clamping strips 2 are displaced outward, the inner wall of the bearing workpiece is clamped to prevent its deflection, which is convenient for fixing and moving the bearing workpiece.

[0041] Example 2

[0042] See also Figure 7 , the utility model provides a technical solution:

[0043] What is different from Example 1 is that an L-shaped strip 8 is provided on the sleeve 1, and the pressing plate 42 is rotatably connected to the displacement rod 41, and a protrusion 9 is provided on the pressing plate 42; the protrusion 9 can be driven to rotate by rotating the pressing plate 42, and after pressing the pressing plate 42, the protrusion 9 is blocked by the L-shaped strip 8, so that the position of multiple clamping strips 2 is limited by transmission without applying pressure on the pressing plate 42 all the time, which is convenient for personnel to operate.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing polishing fixture, comprising a sleeve (1), characterized in that: Also included are: A clamping strip (2), wherein a plurality of the clamping strips (2) are provided, and the plurality of the clamping strips (2) are all slidably arranged on the sleeve (1); A displacement mechanism (3), used for driving the plurality of clamping strips (2) to displace and clamp the inner side of the bearing workpiece, and arranged on the sleeve (1); The limiting mechanism (4) is used to control the displacement mechanism (3), trigger the displacement of the plurality of clamping strips (2) and limit the position, and is arranged on the sleeve (1).

2. The bearing polishing fixture according to claim 1, characterized in that: The displacement mechanism (3) comprises a fixed plate (31) arranged on the sleeve (1), a plurality of connecting plates (32) being slidably arranged on the fixed plate (31), and the plurality of connecting plates (32) are respectively connected to a plurality of clamping strips (2); An extension component (5) is provided on the fixed plate (31) for driving the plurality of connecting plates (32) to move, thereby driving the plurality of clamping strips (2) to move.

3. The bearing polishing fixture according to claim 2, characterized in that: The extension assembly (5) comprises a rotating rod (51) rotatably arranged on a fixed plate (31), the rotating rod (51) being rotatably connected to the sleeve (1), a rotating plate (52) being arranged on the rotating rod (51), a plurality of connecting strips (53) being rotatably arranged on the rotating plate (52), and the plurality of connecting strips (53) being rotatably connected to the plurality of connecting plates (32) respectively.

4. The bearing polishing fixture according to claim 3, characterized in that: The limiting mechanism (4) comprises a displacement rod (41) slidably arranged on the sleeve (1), and a pressing plate (42) is arranged at one end of the displacement rod (41); The rotating rod (51) is provided with a rotating assembly (6) for driving the rotating rod (51) and the rotating plate (52) to rotate; The rotating rod (51) is provided with a rebound component (7) for assisting the rotating rod (51) and the rotating plate (52) to return to their original positions.

5. The bearing polishing fixture according to claim 4, characterized in that: The rotating assembly (6) comprises a gear (61) arranged on the rotating rod (51); a cross bar (62) is arranged on the displacement rod (41); a rack (63) is arranged on the cross bar (62); the rack (63) is meshed with the gear (61); a vertical rod (64) is arranged on the rack (63); and the vertical rod (64) is slidably connected to the sleeve (1).

6. The bearing polishing fixture according to claim 5, characterized in that: The rebound assembly (7) comprises a fixing seat (71) arranged on the sleeve (1), a coil spring (72) being arranged on the fixing seat (71), an outer end of the coil spring (72) being connected to the fixing seat (71), an inner end of the coil spring (72) being connected to the rotating rod (51), and a spring (73) being sleeved on the vertical rod (64).

7. The bearing polishing fixture according to claim 6, characterized in that: The sleeve (1) is provided with an L-shaped strip (8), the pressing plate (42) is rotatably connected to the displacement rod (41), and the pressing plate (42) is provided with a protrusion (9).

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