A bearing inner ring grinding device

Abstract

The utility model provides a bearing inner ring grinding device, which belongs to the technical field of bearing processing and aims to solve the problem that the position of the clamping needs to be manually adjusted each time for the bearing inner rings with different inner diameters, which increases the processing preparation time and reduces the efficiency of the production test of the bearing inner ring. The utility model comprises an operation box, a groove is provided on the inner bottom wall of the operation box, a rotating disk for placing the bearing inner ring is provided in the groove, a drainage hole is provided on the rotating disk, a slide groove is provided in an annular manner on the inner wall of the groove, the rotating disk is connected to the slide groove through a slider, a support is provided on one side of the groove, a spherical grinding wheel grinding head is provided on the side wall of the support, a placement chamber is provided in the rotating disk, an electric cylinder is installed in the placement chamber, a frustum is provided on the rotating disk, four sliding grooves are provided at equal intervals on the surface of the rotating disk along the circumferential direction, a clamping block is provided in the sliding groove for sliding, the inner side surface of the clamping block contacts the side surface of the frustum, and the rotating disk is driven by a motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing processing, and more specifically, particularly relates to a bearing inner ring grinding device. Background Art

[0002] As a core transmission element, bearings are mainly used to support mechanical rotating bodies and reduce the friction coefficient during their movement. Bearings usually include four basic components: outer ring, inner ring, rolling elements and cage.

[0003] Due to the special functions of bearings, some special types of bearings need to be produced separately for performance testing before mass production. In the production process of the inner ring of the bearing, a bearing inner ring grinding device is used. During the polishing and grinding process of the inner ring of the bearing, the position of the inner ring of the bearing is fixed by clamping, and then the inner ring groove of the bearing is polished and polished using a high-speed rotating spherical grinding head. However, due to the different inner diameters of the inner ring of the bearing, general bearing inner ring grinding equipment needs to manually adjust the clamping position for the inner ring of the bearing with different inner diameters each time, which increases the processing preparation time and reduces the efficiency of the production test of the inner ring of the bearing.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a bearing inner ring grinding device is provided to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a bearing inner ring grinding device to solve the problem that for bearing inner rings of different inner diameters, the clamping position needs to be manually adjusted each time, which increases the processing preparation time and reduces the efficiency of production testing of the bearing inner ring.

[0006] The purpose and effect of the bearing inner ring grinding device of the utility model are achieved by the following specific technical means:

[0007] A bearing inner ring grinding device comprises an operation box, the inner bottom wall of the operation box is provided with a circular groove, a rotating disk for placing the bearing inner ring is provided in the groove, a drainage hole is provided on the rotating disk, a slide groove is provided in an annular manner on the inner wall of the groove, the rotating disk is connected to the slide groove through a slider, a support is provided on one side of the groove, a spherical grinding wheel head is provided on the side wall of the support, and the spherical grinding wheel head fits with the inner ring groove in the bearing inner ring;

[0008] A placement chamber is provided in the rotating disk, an electric cylinder is installed in the placement chamber, a frustum is provided on the rotating disk, a piston rod of the electric cylinder passes through the rotating disk and is connected to the frustum, four sliding grooves are provided at equal intervals along the circumferential direction on the surface of the rotating disk, clamping blocks are slidably provided in the four sliding grooves, the frustum is located between the four clamping blocks, the inner side of the clamping block contacts the side of the frustum, and the rotating disk is driven by a motor.

[0009] Furthermore, a moving component is provided on the inner bottom wall of the operating box, and the moving component includes a receiving groove opened on the inner bottom wall of the operating box and located on one side of the groove, a support rod is provided in the receiving groove, and both ends of the support rod are respectively connected to the inner wall of the receiving groove, and a support seat is sleeved on the support rod, and a screw rod is passed through the support, and both ends of the screw rod are respectively rotatably connected to the inner wall of the receiving groove, and the outer end of the screw rod passes through the side wall of the operating box and is connected to the motor.

[0010] Furthermore, a water inlet nozzle is provided on the top wall of the operation box, and a drainage pipe is provided inside the groove.

[0011] Furthermore, a rubber layer is provided on the outer side of the clamping block.

[0012] Furthermore, an observation door and window are provided on the surface of the operation box, and one side of the operation box is hinged to one side of the observation door and window through a hinge.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By setting the frustum and the clamping block, the inner ring of the bearing to be processed is placed on the rotating disk, the clamping block and the frustum are located inside the inner ring of the bearing, the piston rod of the electric cylinder passes through the rotating disk and is connected to the frustum, the piston rod of the electric cylinder drives the frustum to move upward along the axial direction, and the side of the frustum is used to apply thrust to the inner side surfaces of the four clamping blocks, pushing the clamping blocks to move outward along the sliding groove, so that the outer side surface of the clamping block is in close contact with the inner ring surface of the inner ring of the bearing, thereby realizing the clamping and fixing of the inner rings of the bearings with different inner diameters, and providing convenience for the polishing and grinding of the inner rings of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a stereoscopic diagram of a bearing inner ring grinding device.

[0016] Figure 2 It is an exploded view of a bearing inner ring grinding device of the utility model.

[0017] Figure 3 The utility model is a cross-sectional view of a bearing inner ring grinding device.

[0018] Figure 4 The utility model is a partial schematic diagram of a bearing inner ring grinding device.

[0019] Figure 5 It is a partial cross-sectional view of a bearing inner ring grinding device of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Operation box; 2. Groove; 3. Slide; 4. Rotating disk; 5. Sliding block; 6. Drain hole; 7. Support; 8. Spherical grinding wheel head; 91. Inner annular surface; 92. Inner ring groove; 10. Placement chamber; 11. Electric cylinder; 12. Cone; 13. Sliding groove; 14. Observation door and window; 15. Clamping block; 16. Moving assembly; 161. Receiving groove; 162. Support rod; 163. Screw rod; 17. Drain pipe; 18. Water inlet nozzle. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 5 As shown:

[0027] The utility model provides a bearing inner ring grinding device, comprising an operation box 1, a water inlet nozzle 18 is penetrated through the top wall of the operation box 1, a circular groove 2 is opened on the inner bottom wall of the operation box 1, a drainage pipe 17 is penetrated through the bottom of the groove 2, and the drainage pipe 17 is used to discharge waste liquid and debris in the grinding process through the drainage pipe 17, a rotating disk 4 is arranged in the groove 2, the rotating disk 4 is used to support and place the bearing inner ring, drainage holes 6 are evenly distributed on the rotating disk 4, a slide groove 3 is opened in an annular manner on the inner wall of the groove 2, and the rotating disk 4 is connected to the slide groove 3 through a slider 5, so as to play a supporting and positioning effect on the rotating disk 4;

[0028] One end of the water inlet nozzle 18 is located above the rotating disk 4, and the other end passes through the operation box 1 and is connected to the external water source. During the grinding process, water is continuously sprayed to the inner ring grinding work area of ​​the bearing above the rotating disk 4 through the water inlet nozzle 18 to form a cooling liquid curtain, thereby reducing the high temperature and spark splashing caused by high-speed grinding. The water flow can also play a good lubricating role, reducing the friction resistance between the grinding tool and the inner ring of the bearing. By cooling with water spray, the dust generated during the grinding process is reduced;

[0029] A placement chamber 10 is provided inside the rotating disk 4, and an electric cylinder 11 is installed in the placement chamber 10. A frustum 12 is provided on the rotating disk 4. The piston rod of the electric cylinder 11 passes through the rotating disk 4 and is connected to the frustum 12, so that the electric cylinder 11 can move the frustum 12 up and down along the axial direction through the piston rod. Four sliding grooves 13 are provided on the surface of the rotating disk 4 at equal intervals along the circumferential direction. Clamping blocks 15 are slidably provided in the four sliding grooves 13. The inner side surface of the clamping block 15 contacts the frustum 12. When the inner ring of the bearing needs to be clamped, the operator places the inner ring of the bearing to be processed on the surface of the rotating disk 4. The clamping block 15 and the frustum 12 are located inside the inner ring of the bearing. The electric cylinder 11 serves as a power source, and controls the piston rod to extend and retract through a built-in motor. When the electric cylinder 11 receives a start signal, the motor in the electric cylinder 11 starts to run, driving the piston rod in the electric cylinder 11 to extend, bringing The movable frustum 12 moves upward along the axial direction, and the side surface of the frustum 12 contacts the inner side surface of the clamping block 15, transmitting thrust to the clamping block 15, so that the four clamping blocks 15 slide outward synchronously along their respective sliding grooves 13, so that the outer side of the clamping block 15 abuts against the inner ring surface 91 of the inner ring of the bearing, thereby clamping and fixing the inner ring of the bearing, adapting to the inner ring sizes of bearings with different inner diameters, and improving the grinding efficiency of the inner ring of the bearing. Conversely, when the inner ring of the bearing needs to be released, the piston rod of the electric cylinder 11 retracts, driving the frustum 12 to move downward along the axial direction, and the frustum 12 moves downward, loosening the abutment against the inner side surface of the clamping block 15, so that the clamping block 15 releases the clamping and fixing of the inner ring surface 91 of the inner ring of the bearing, completing the release of the inner ring of the bearing; the model of the electric cylinder 11 is SEC61-R038, and the electric cylinder 11 is a prior art, which is not described in detail in the present utility model;

[0030] A motor is installed at the bottom of the operating box 1, and the output shaft of the motor is connected to the rotating disk 4. The motor drives the rotating disk 4 to rotate. A support 7 is provided on one side of the groove 2, and a spherical grinding wheel head 8 is provided on the side wall of the support 7. The spherical grinding wheel head 8 is tightly fitted with the inner ring groove 92. When the inner ring of the bearing placed on the rotating disk 4 is clamped and fixed by the clamping block 15, the motor drives the rotating disk 4 to rotate, and the spherical grinding wheel head 8 evenly grinds and polishes the inner ring groove 92 of the synchronously rotating bearing inner ring; the model of the spherical grinding wheel head 8 is HY-46, and the spherical grinding wheel head 8 is a prior art and is not described in detail in the present utility model.

[0031] The inner bottom wall of the operating box 1 is located on one side of the groove 2 and is provided with a receiving groove 161. A support rod 162 is provided in the receiving groove 161. A support 7 is sleeved on the support rod 162. A screw rod 163 is passed through the support 7. Both ends of the screw rod 163 are rotatably connected to the inner wall of the receiving groove 161. The outer end of the screw rod 163 passes through the side wall of the operating box 1 and is connected to the motor. A spherical grinding wheel head 8 is provided on one side of the support 7. The motor drives the screw rod 163 to rotate, and the output shaft of the motor transmits the rotational motion to the screw rod 163. The screw rod 163 starts to rotate, and the screw rod 163 and the support are connected. 7 threaded connection, when the screw rod 163 rotates forward, the support 7 moves to the left along the axial direction of the screw rod 163, conversely, when the screw rod 163 rotates reversely, the support 7 moves to the right along the axial direction of the screw rod 163, and the setting of the support rod 162 plays a role of limiting and guiding the support 7, ensuring that the support 7 can only move left and right and cannot rotate with the rotation of the screw rod 163, ensuring that the support 7 moves left and right smoothly along the set straight line trajectory, which is convenient for the operator to adjust the position according to the grinding requirements of the inner ring groove 92 of the inner ring of the bearing with different diameters.

[0032] An observation door and window 14 is provided on the surface of the operating box 1. One side of the operating box 1 is hinged to one side of the observation door and window 14 through a hinge. The setting of the observation door and window 14 facilitates the operator to observe the grinding condition of the inner ring of the bearing more directly, clearly and in real time, and timely adjust the abnormal conditions occurring during the grinding process. The observation door and window 14 makes the operating box 1 a closed space, which can effectively block the debris that may fly out during the high-speed rotation grinding process to avoid harm to the operator.

[0033] When using:

[0034] The operator places the inner ring of the bearing to be polished on the rotating disk 4, the clamping block 15 and the truncated cone 12 are located inside the inner ring of the bearing, the electric cylinder 11 is turned on, and the piston rod of the electric cylinder 11 drives the truncated cone 12 to move upward, and through the contact between the side of the truncated cone 12 and the inner side of the four clamping blocks 15, a thrust is applied to the four clamping blocks 15, so that the clamping blocks 15 move outward along their respective sliding grooves 13, and the outer side of the clamping block 15 is pushed to closely contact the inner ring surface 91 of the inner ring of the bearing, so as to adapt to shafts of different inner diameters. The inner ring of the bearing is clamped and fixed, and the motor drives the rotating disk 4 to rotate, driving the clamped inner ring of the bearing to rotate synchronously, and the spherical grinding wheel grinding head 8 fits with the inner ring groove 92 of the inner ring of the bearing. When the inner ring of the bearing rotates, the spherical grinding wheel grinding head 8 evenly grinds and polishes it. The water inlet nozzle 18 penetrated on the top wall of the operating box 1 continuously sprays water to the grinding working area of ​​the inner ring of the bearing to cool the inner ring of the bearing and the grinding tool, thereby realizing the grinding of the inner rings of the bearings with different inner diameters and improving the efficiency of the production test of the inner ring of the bearing.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A bearing inner ring grinding device, characterized in that: The invention comprises an operating box (1), wherein the inner bottom wall of the operating box (1) is provided with a circular groove (2), wherein a rotating disk (4) for placing the inner ring of the bearing is provided in the groove (2), wherein a drainage hole (6) is provided on the rotating disk (4), and an annular slide groove (3) is provided on the inner wall of the groove (2), wherein the rotating disk (4) is connected to the slide groove (3) via a slider (5), wherein a support (7) is provided on one side of the groove (2), wherein a spherical grinding wheel head (8) is provided on the side wall of the support (7), and the spherical grinding wheel head (8) is fitted with an inner ring groove (92) in the inner ring of the bearing; The rotating disk (4) is provided with a placement chamber (10), an electric cylinder (11) is installed in the placement chamber (10), a truncated cone (12) is provided on the rotating disk (4), a piston rod of the electric cylinder (11) passes through the rotating disk (4) and is connected to the truncated cone (12), four sliding grooves (13) are provided on the surface of the rotating disk (4) at equal intervals along the circumferential direction, clamping blocks (15) are slidably provided in the four sliding grooves (13), the truncated cone (12) is located between the four clamping blocks (15), the inner side surface of the clamping block (15) is in contact with the side surface of the truncated cone (12), and the rotating disk (4) is driven by a motor.

2. A bearing inner ring grinding device as claimed in claim 1, characterized in that: The inner bottom wall of the operation box (1) is also provided with a moving assembly (16), the moving assembly (16) comprising a receiving groove (161) provided on the inner bottom wall of the operation box (1) and located on one side of the groove (2), a support rod (162) is provided in the receiving groove (161), two ends of the support rod (162) are respectively connected to the inner wall of the receiving groove (161), a support seat (7) is sleeved on the support rod (162), a screw rod (163) is passed through the support seat (7), two ends of the screw rod (163) are respectively rotatably connected to the inner wall of the receiving groove (161), and the outer end of the screw rod (163) passes through the side wall of the operation box (1) and is connected to the motor.

3. A bearing inner ring grinding device as claimed in claim 2, characterized in that: A water inlet nozzle (18) is provided on the top wall of the operation box (1), and a drainage pipe (17) is provided inside the groove (2).

4. A bearing inner ring grinding device as claimed in claim 1, characterized in that: The outer side surface of the clamping block (15) is provided with a rubber layer.

5. A bearing inner ring grinding device as claimed in claim 1, characterized in that: An observation door and window (14) is provided on the surface of the operation box (1), and one side of the operation box (1) is hinged to one side of the observation door and window (14) via a hinge.

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