Bearing ring workpiece support device and grinding machine incorporating same
By designing a bearing ring workpiece support device, using fine-tuning components to make the self-aligning connecting plate concentric, and through the contact between the support component and the outer wall of the bearing ring workpiece, the scratch problem caused by the electromagnetic centerless fixture was solved, thus achieving a shorter production cycle and improved precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THIEL ENHAUS MASCH (SHANGHAI) CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-03
AI Technical Summary
Existing electromagnetic centerless jigs cause scratches during the grinding of bearing rings, extending the production cycle, increasing costs, and reducing accuracy.
A bearing ring workpiece support device was designed, including a support base, a self-aligning connecting plate, and first and second support members. The self-aligning connecting plate is made concentric by the fine-adjusting member, and the first and second support members make contact with the outer wall of the bearing ring workpiece, thereby reducing contact stress and contact area.
It shortened the production cycle, reduced production costs, improved the machining accuracy of bearing ring workpieces, and reduced the occurrence of scratches.
Smart Images
Figure CN224445498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding technology, and in particular to a bearing ring workpiece support device and a grinding machine tool equipped with the bearing ring workpiece support device. Background Technology
[0002] Electromagnetic centerless chucks are widely used in bearing ring grinding due to their advantages such as high repeatability, roundness replication, minimal clamping deformation, and ease of automation. However, during the grinding of bearing rings, the electromagnetic centerless chuck uses radial clamping and grinding force to stably press the bearing ring onto two supports and move relative to them. This inevitably results in circumferential scratches on the bearing ring during movement. To remove these scratches, the industry practice is to add a finishing grinding process on the outer diameter surface after final grinding. This not only extends the production cycle and increases the production cost of bearing rings but also reduces the accuracy of the wall thickness difference between the outer diameter surface (the reference surface) and the raceway. Therefore, using existing electromagnetic centerless chucks in conjunction with grinding machines for grinding bearing rings results in long production cycles, high production costs, and low precision in the finished bearing rings. Utility Model Content
[0003] To shorten the production cycle and reduce production costs of bearing ring workpieces, this utility model proposes a bearing ring workpiece support device. The device includes a support base, a self-aligning connecting plate, a first support member, and a second support member. The support base includes a support base and a support vertical plate. The support vertical plate is vertically fixed to the support base and has a positioning groove. The self-aligning connecting plate has a fan-shaped clearance groove and an arc-shaped adjusting slide groove. The adjusting slide groove is located on the side of the self-aligning connecting plate and near the edge of the fan-shaped clearance groove. The self-aligning connecting plate is mounted on the support vertical plate, and a fine-tuning component for adjusting the center position of the fan-shaped clearance groove is provided between the self-aligning connecting plate and the support base. The first support member is mounted on the self-aligning connecting plate via a first slide block located in the adjusting slide groove, and the second support member is mounted on the self-aligning connecting plate via a second slide block located in the adjusting slide groove. The first and second support members are arranged at an included angle.
[0004] This utility model's bearing ring workpiece support device utilizes a fine-tuning component to finely adjust the fixed position of the self-aligning connecting plate on the support base, enabling the adjusting groove on the self-aligning connecting plate to be concentric with the bearing ring workpiece to be processed. This ensures that the contact surfaces of the first support member and the second support member are concentric with the bearing ring workpiece to be processed. By using the sliding of the first slide and the second slide in the adjusting groove, the first support member and the second support member can be slid along the adjusting groove, thereby adjusting the included angle between the first support member and the second support member. This ensures that both the first support member and the second support member are in contact with the outer wall line of the bearing ring workpiece to be processed when supporting it. In this way, when grinding the bearing ring workpiece using a grinding machine, the workpiece can be made concentric with the adjusting groove on the self-aligning connecting plate, and the first and second supports mounted on the self-aligning connecting plate can be made in contact with the outer wall of the bearing ring workpiece. This greatly reduces the contact stress and contact area between the bearing ring workpiece and the first and second supports, thereby significantly reducing the probability of the bearing ring workpiece being scratched by the first and second supports during processing. This effectively reduces the likelihood of needing to add a grinding process to the outer diameter surface. Therefore, it is evident that using the bearing ring workpiece support device of this invention during the grinding process can shorten the production cycle of the bearing ring workpiece, reduce the production cost, and improve the processing accuracy.
[0005] Preferably, the fine-tuning component includes a horizontal fine-tuning mechanism and a vertical fine-tuning mechanism. The horizontal fine-tuning mechanism is mounted on the support base, and its adjusting end abuts against the bottom of the self-aligning connecting plate. The vertical fine-tuning mechanism is mounted on the support vertical plate, and its adjusting end abuts against the side of the self-aligning connecting plate. Thus, when fine-tuning the fixed position of the self-aligning connecting plate using the fine-tuning component, the horizontal fine-tuning mechanism can be used below the self-aligning connecting plate to adjust its vertical height, and the vertical fine-tuning mechanism can be used to adjust its horizontal position from the side of the self-aligning connecting plate, making adjustment simple and convenient. Furthermore, the horizontal fine-tuning mechanism includes a horizontal fine-tuning bolt and a horizontal fine-tuning nut. The horizontal fine-tuning bolt is installed in a horizontal fine-tuning screw hole on the support base, with the screw head of the horizontal fine-tuning bolt facing the self-aligning connecting plate. The horizontal fine-tuning nut is sleeved on the horizontal fine-tuning bolt and located between the support base and the screw head of the horizontal fine-tuning bolt. The vertical fine-tuning mechanism includes a vertical fine-tuning seat, a vertical fine-tuning bolt, and a vertical fine-tuning nut. The vertical fine-tuning seat is fixed to the side end of the support vertical plate. The vertical fine-tuning bolt is installed in a vertical fine-tuning screw hole on the vertical fine-tuning seat, with the screw head of the vertical fine-tuning bolt facing the self-aligning connecting plate. The vertical fine-tuning nut is sleeved on the vertical fine-tuning bolt and located between the vertical fine-tuning seat and the screw head of the vertical fine-tuning bolt. Thus, when fine-tuning the fixed position of the self-aligning connecting plate on the support base using the fine-tuning mechanism, stepless adjustment can be achieved simply by turning the horizontal fine-tuning bolt in the horizontal fine-tuning mechanism and the vertical fine-tuning bolt in the vertical fine-tuning mechanism, making operation simple and convenient. More preferably, the vertical fine-tuning base includes a base plate and a connecting block. The base plate is perpendicularly connected to the connecting block, and the vertical fine-tuning screw hole is located on the base plate. The connecting block is fixed to the support vertical plate by connecting bolts. In this way, the vertical fine-tuning base can be connected and fixed to the support vertical plate on the support base via the connecting block, making fixing simple and convenient. The base plate, perpendicularly connected to the connecting block, is provided with a vertical fine-tuning screw hole for installing the vertical fine-tuning bolt, facilitating control of the vertical fine-tuning bolt's perpendicularity to the side of the self-aligning connecting plate, thereby facilitating fine-tuning of the fixed position of the self-aligning connecting plate.
[0006] Preferably, an adjusting shim is provided between the fine-tuning component and the self-aligning connecting plate. This shim prevents friction damage to the self-aligning connecting plate during adjustment, thus avoiding impact on its service life and adjustment accuracy. Furthermore, the self-aligning connecting plate is provided with a shim slot for mounting the adjusting shim. This prevents the adjusting shim from shifting or becoming misaligned during adjustment, thus ensuring the accuracy of the self-aligning connecting plate's adjustment.
[0007] Preferably, the first support member includes a first support base, a first floating support seat, a first floating support block, and a first contact block. The first support base is connected to the first slide, and a rotating groove is provided at the top of the first support base. The first floating support seat is installed in the rotating groove by a connecting pin, and the central axis of the connecting pin is perpendicular to the axial section of the fan-shaped relief groove. The top fold of the first floating support seat has a V-shaped structure, and two first floating support grooves are provided on the top fold, which are symmetrically arranged on both sides of the fold line of the top fold. The first floating support block is installed in the first floating support groove by a first positioning pin, and the central axis of the first positioning pin is perpendicular to the axial section of the fan-shaped relief groove. The cross-sections are parallel; the first contact block is fixed to the top of the first floating support block, and the first contact block, facing away from the first contact surface of the first floating support block, contacts the bearing ring workpiece; the second support member includes a second support base, a second floating support block, and a second contact block. The second support base is connected to the second slide block, and a second floating support groove is provided at the top of the second support base. The second floating support block is installed in the second floating support groove by a second positioning pin, and the central axis of the second positioning pin is parallel to the axial cross-section of the fan-shaped clearance groove; the second contact block is fixed to the top of the second floating support block, and the second contact block, facing away from the second floating support block, contacts the bearing ring workpiece. In this way, the first floating support seat in the first support member is installed in the rotating groove at the top of the first support base by a connecting pin, and can rotate around the connecting pin according to the support needs, so that the first contact surfaces of the two first contact blocks on the top folded surface of the V-shaped structure on the first floating support seat are in contact with the outer wall line of the bearing ring workpiece to be processed, thereby cooperating with the second contact surface of the second contact block in the second support member to stably support the bearing ring workpiece to be processed, and improving the support stability of the bearing ring workpiece support device of this utility model. In addition, the first floating support block in the first support member is installed in the first floating support groove on the first floating support seat through the first positioning pin, and the second floating support block in the second support member is installed in the second floating support groove on the second support base through the second positioning pin. This allows the first floating support block to rotate around the first positioning pin in the first floating support groove, and the second floating support block to rotate around the second positioning pin in the second floating support groove. As a result, both the first contact block fixed on the first floating support block and the second contact block fixed on the second floating support block are in line contact with the bearing ring workpiece to be processed, reducing scratches generated on the bearing ring workpiece during processing. This can shorten the grinding production cycle of the bearing ring workpiece, reduce the production cost of the bearing ring workpiece, and improve the processing accuracy of the bearing ring workpiece.Further, the first support member includes a first connecting block, which is located between and connects the first support base and the first slide; the second support member includes a second connecting block, which is located between and connects the second support base and the second slide. Thus, the first support base in the first support member is connected to the first slide via the first connecting block, and the second support base in the second support member is connected to the second slide via the second connecting block. Different specifications of the first and second connecting blocks can be selected as needed to meet the requirements of processing bearing ring workpieces of different specifications. More preferably, the first connecting block is provided with a first connecting groove, and the first support base is provided with a first connecting latch, and when the first support base is connected to the first connecting block, the first connecting latch is engaged in the first connecting groove; the second connecting block is provided with a second connecting groove, and the second support base is provided with a second connecting latch, and when the second support base is connected to the second connecting block, the second connecting latch is engaged in the second connecting groove. Thus, when grinding bearing ring workpieces of different specifications, the fixed positions of the first connecting plate on the first support base in the first connecting groove on the first connecting block and the fixed positions of the second connecting plate on the second support base in the second connecting groove on the second connecting block can be adjusted as needed. Therefore, this bearing ring workpiece support device can be used for processing bearing ring workpieces of different specifications, and has a wide range of applications.
[0008] Furthermore, this utility model also proposes a grinding machine tool equipped with any of the aforementioned bearing ring workpiece support devices. By equipping the grinding machine tool with the aforementioned bearing ring workpiece support device, scratches generated on the outer wall of the bearing ring workpiece during grinding can be effectively reduced, the production cycle of the bearing ring workpiece can be shortened, production costs can be reduced, and the machining accuracy of the bearing ring workpiece can be improved. Attached Figure Description
[0009] Figure 1 This is a first-view structural schematic diagram of the bearing ring workpiece support device of this utility model;
[0010] Figure 2 This is a second-view structural schematic diagram of the bearing ring workpiece support device of this utility model;
[0011] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure in the diagram;
[0012] Figure 4 for Figure 2 A schematic diagram of the BB cross-sectional structure. Detailed Implementation
[0013] Below, in conjunction with Figures 1 to 4 This paper provides a detailed description of the bearing ring workpiece support device of this utility model and the grinding machine tool equipped with the bearing ring workpiece support device.
[0014] like Figure 1 and 2 As shown, the bearing ring workpiece support device of this utility model includes a support base 1, a self-aligning connecting plate 2, a first support member 31, and a second support member 32. The support base 1 includes a support base 11 and a support vertical plate 12, which is vertically fixed to the support base 11 and has a positioning groove 121. When the bearing ring workpiece support device is installed and fixed on a grinding machine, the positioning groove 121 on the support vertical plate 12 corresponds to the grinding position on the grinding machine, so that the grinding device on the grinding machine can extend from the positioning groove 121 to grind the bearing ring workpiece 4 located on the bearing ring workpiece support device. Preferably, the positioning groove 121 is an arc-shaped groove, which facilitates the extension of the grinding device from the positioning groove 121 and avoids interference between the inner wall of the positioning groove 121 and the grinding device, thus preventing interference with the grinding process. Preferably, a right-angled triangular rib plate 13 is connected between the support vertical plate 12 and the support base 11 to enhance the connection stability between the support vertical plate 12 and the support base 11.
[0015] like Figures 1 to 4As shown, the self-aligning connecting plate 2 is provided with a fan-shaped relief groove 21 and an arc-shaped adjusting slide 22. The adjusting slide 22 is located on the side of the self-aligning connecting plate 2 and close to the edge of the fan-shaped relief groove 21. A first slide 51 for connecting to the first support member 31 and a second slide 52 for connecting to the second support member 32 are installed in the adjusting slide 22. In this way, during use, the first slide 51 and the second slide 52 can slide in the adjusting slide 22 to drive the first support member 31 and the second support member 32 to slide along the adjusting slide 22, thereby adjusting the included angle between the first support member 31 and the second support member 32, so that the first support member 31 and the second support member 32 are in contact with the outer wall line of the bearing ring workpiece 4 to be processed when supporting it. Preferably, the cross-section of the adjusting slide 22 is a T-shaped structure. In this way, when the first slide block 51 and the second slide block 52 are installed in the adjusting slide groove 22, it can prevent the first slide block 51 and the second slide block 52 from sliding out of the adjusting slide groove 22, thus affecting the installation and fixation of the first support member 31 and the second support member 32 on the self-aligning connecting plate 2. The self-aligning connecting plate 2 is installed on the supporting vertical plate 12, and a fine-tuning component for adjusting the center position of the adjusting sector-shaped clearance groove 21 is provided between the self-aligning connecting plate 2 and the supporting base 1. In this way, during use, the fixed position of the self-aligning connecting plate 2 on the supporting vertical plate 12 can be adjusted as needed using the fine-tuning component, so that the adjusting slide groove 22 on the self-aligning connecting plate 2 is concentric with the bearing ring workpiece 4 to be processed, thereby making the contact surface of the first support member 31 and the second support member 32 concentric with the bearing ring workpiece 4 to be processed. Preferably, the fine-tuning component includes a horizontal fine-tuning mechanism 61 and a vertical fine-tuning mechanism 62. The horizontal fine-tuning mechanism 61 is mounted on the support base 11, and its adjusting end abuts against the bottom of the self-aligning connecting plate 2. The vertical fine-tuning mechanism 62 is mounted on the support vertical plate 12, and its adjusting end abuts against the side of the self-aligning connecting plate 2. Thus, when fine-tuning the fixed position of the self-aligning connecting plate 2 using the fine-tuning component, the horizontal fine-tuning mechanism 61 can be used to adjust the vertical height of the self-aligning connecting plate 2 from below, and the vertical fine-tuning mechanism 62 can be used to adjust the horizontal position of the self-aligning connecting plate 2 from the side, making adjustment simple and convenient.Preferably, the horizontal fine-tuning mechanism 61 includes a horizontal fine-tuning bolt 611 and a horizontal fine-tuning nut 612. The horizontal fine-tuning bolt 611 is installed in a horizontal fine-tuning screw hole (not shown in the figure) on the support base 11, and the screw head of the horizontal fine-tuning bolt 611 faces the self-aligning connecting plate 2. The horizontal fine-tuning nut 612 is sleeved on the horizontal fine-tuning bolt 611 and located between the support base 11 and the screw head of the horizontal fine-tuning bolt 611. The vertical fine-tuning mechanism 62 includes a vertical fine-tuning seat 6. 21. Vertical fine-tuning bolt 622 and vertical fine-tuning nut 623: The vertical fine-tuning seat 621 is fixedly mounted on the side end of the supporting vertical plate 12. The vertical fine-tuning bolt 622 is installed in the vertical fine-tuning screw hole (not shown in the figure) on the vertical fine-tuning seat 621, with the screw head of the vertical fine-tuning bolt 622 facing the self-aligning connecting plate 2. The vertical fine-tuning nut 623 is sleeved on the vertical fine-tuning bolt 622 and located between the vertical fine-tuning seat 621 and the screw head of the vertical fine-tuning bolt 622. In this way, when fine-tuning the fixed position of the self-aligning connecting plate 2 on the support seat 1 using the fine-tuning components, stepless adjustment can be achieved simply by turning the horizontal fine-tuning bolt 611 in the horizontal fine-tuning mechanism 61 and the vertical fine-tuning bolt 622 in the vertical fine-tuning mechanism 62, making the operation simple and convenient. Preferably, the vertical fine-tuning seat 621 includes a seat plate 6211 and a connecting block 6212. The seat plate 6211 and the connecting block 6212 are vertically connected, and the vertical fine-tuning screw hole for installing the vertical fine-tuning bolt 622 is located on the seat plate 6211. The connecting block 6212 is installed and fixed on the supporting vertical plate 12 by a connecting bolt (not shown in the figure). In this way, the vertical fine-tuning seat 621 can be connected and fixed to the supporting vertical plate 12 on the support seat 1 through the connecting block 6212, which is simple and convenient. The seat plate 6211, which is vertically connected to the connecting block 6212, is provided with a vertical fine-tuning screw hole for installing the vertical fine-tuning bolt 622, which facilitates the control of the vertical fine-tuning bolt 622 being perpendicular to the side of the self-aligning connecting plate 2, thereby facilitating the fine-tuning of the fixed position of the self-aligning connecting plate 2. Preferably, an adjusting shim 63 is provided between the fine-tuning component and the self-aligning connecting plate 2. By placing an adjusting shim 63 between the self-aligning connecting plate 2 and the fine-tuning component, friction damage to the self-aligning connecting plate 2 during adjustment can be avoided, thus preventing impact on its service life and adjustment accuracy. Preferably, the self-aligning connecting plate 2 is provided with a shim slot (not shown in the figure) for installing the adjusting shim 63. This ensures that the adjusting shim 63 is installed in the shim slot, preventing misalignment during adjustment and ensuring the adjustment accuracy of the self-aligning connecting plate 2.
[0016] like Figure 1 , 2As shown in Figure 4, the first support member 31 is mounted on the self-aligning connecting plate 2 via a first slide block 51 located in the adjusting slide groove 22, and the second support member 32 is mounted on the self-aligning connecting plate via a second slide block located in the adjusting slide groove, with the first support member 31 and the second support member 32 arranged at an included angle. Thus, the first support member 31 and the second support member 32 support the bearing ring workpiece 4 to be processed from at least two angles, ensuring the support stability of the bearing ring workpiece 4 during the grinding process. Preferably, the first support member 31 is located near the upper part of the fan-shaped relief groove 21, and the second support member 32 is located near the bottom of the fan-shaped relief groove 21. This allows the first support member 31 and the second support member 32 to support the bearing ring workpiece 4 from the bottom and sides, improving the support stability of the bearing ring workpiece 4 during the grinding process. Preferably, the first support member 31 includes a first support base 311, a first floating support seat 312, a first floating support block 313, and a first contact block 314. The first support base 311 is connected to the first slide block 51, and a rotating groove 3111 is provided at the top of the first support base 311. The first floating support seat 312 is installed in the rotating groove 3111 by a connecting pin 315, and the central axis of the connecting pin 315 is perpendicular to the axial section of the fan-shaped relief groove 21. The top folded surface (not shown in the figure) of the first floating support seat 312 is a V-shaped structure, and two first floating support grooves (not shown in the figure) are provided on the top folded surface. The two first floating support grooves are symmetrically arranged on both sides of the fold line of the top folded surface. The first floating support block 313 is installed in the first floating support groove by a first positioning pin 316, and the central axis of the first positioning pin 316 is perpendicular to the axial section of the fan-shaped relief groove 21. Parallel; the first contact block 314 is fixed to the top of the first floating support block 313, and the first contact block 314 contacts the bearing ring workpiece 4 away from the first contact surface (not shown in the figure) of the first floating support block 313; the second support member 32 includes a second support base 321, a second floating support block 322 and a second contact block 323. The second support base 321 is connected to the second slide block 52. The top end of the second support base 321 is provided with a second floating support groove (not shown in the figure). The second floating support block 322 is installed in the second floating support groove through a second positioning pin 324, and the central axis of the second positioning pin 324 is parallel to the axial section of the fan-shaped relief groove 21; the second contact block 323 is fixed to the top of the second floating support block 322, and the second contact block 323 contacts the bearing ring workpiece 4 away from the second contact surface (not shown in the figure) of the second floating support block 322.In this way, the first floating support seat 312 in the first support member 31 is installed in the rotating groove 3111 on the top of the first support base 311 through the connecting pin 315. It can rotate around the connecting pin 315 according to the support needs, so that the first contact surfaces of the two first contact blocks 314 on the top folded surface of the V-shaped structure on the first floating support seat 312 are in contact with the outer wall line of the bearing ring workpiece 4 to be processed. This, together with the second contact surface of the second contact block 323 in the second support member 32, stably supports the bearing ring workpiece 4 to be processed, thereby improving the support stability of the bearing ring workpiece support device of this utility model. Furthermore, the first floating support block 313 in the first support member 31 is installed in the first floating support groove on the first floating support seat 312 via the first positioning pin 316, and the second floating support block 322 in the second support member 32 is installed in the second floating support groove on the second support base 321 via the second positioning pin 324. This allows the first floating support block 313 to rotate around the first positioning pin 316 in the first floating support groove, and the second floating support block 322 to rotate around the second positioning pin 324 in the second floating support groove. As a result, the first contact block 314 fixed on the first floating support block 313 and the second contact block 323 fixed on the second floating support block 322 both form an ideal line contact with the outer wall of the bearing ring workpiece 4 to be processed. This can minimize the contact stress between the bearing ring workpiece 4 and the first support member 31 and the second support member 32, thereby minimizing the scratches generated on the bearing ring workpiece 4 during processing. This can shorten the grinding production cycle of the bearing ring workpiece 4, reduce the production cost of the bearing ring workpiece 4, and improve the processing accuracy of the bearing ring workpiece 4. Preferably, the included angle α of the V-shaped structure of the top folded surface of the first floating support 312 is an obtuse angle. Thus, the included angle between the first contact surfaces of the two first contact blocks 314 located on the top folded surface of the first floating support 312 is an obtuse angle, facilitating contact between the two first contact surfaces and the outer wall of the bearing ring workpiece 4 to be processed, thereby supporting the bearing ring workpiece 4. Preferably, the first support member 31 includes a first connecting block 317, which is located between and connects the first support base 311 and the first slide 51; the second support member 32 includes a second connecting block 325, which is located between and connects the second support base 321 and the second slide 52. In this way, the first support base 311 in the first support member 31 is connected to the first slide 51 through the first connecting block 317, and the second support base 321 in the second support member 32 is connected to the second slide 52 through the second connecting block 325. Different specifications of the first connecting block 317 and the second connecting block 325 can be selected as needed to meet the needs of processing bearing ring workpieces 4 of different specifications.Preferably, the first connecting block 317 is provided with a first connecting groove (not shown in the figure), which extends radially along the fan-shaped relief groove 21. The first support base 311 is provided with a first connecting latch 3112, and when the first support base 311 is connected to the first connecting block 317, the first connecting latch 3112 is engaged in the first connecting groove. The second connecting block 325 is provided with a second connecting groove (not shown in the figure), which extends radially along the fan-shaped relief groove. The second support base 321 is provided with a second connecting latch 3212, and when the second support base 321 is connected to the second connecting block 325, the second connecting latch 3212 is engaged in the second connecting groove. Thus, when grinding bearing ring workpieces 4 of different specifications, the fixed positions of the first connecting plate 3112 on the first support base 311 in the first connecting groove on the first connecting block 317 and the fixed positions of the second connecting plate 3212 on the second support base 321 in the second connecting groove on the second connecting block 325 can be adjusted as needed along the radial direction of the fan-shaped relief groove. Therefore, the bearing ring workpiece support device of this utility model can be used for processing bearing ring workpieces 4 of different specifications, and has a wide range of applications.
[0017] When grinding bearing ring workpieces using a grinding machine equipped with the bearing ring workpiece support device of this utility model, the fixed position of the self-aligning connecting plate 2 on the support base 11 can be finely adjusted using a fine-tuning component. This allows the adjusting groove 22 on the self-aligning connecting plate 2 to be concentric with the bearing ring workpiece 4 to be processed, thereby making the contact surfaces of the first support member 31 and the second support member 32 concentric with the bearing ring workpiece 4 to be processed. By using the sliding of the first slide block 51 and the second slide block 52 in the adjusting groove 22 to drive the first support member 31 and the second support member 32 to slide along the adjusting groove 22, the included angle between the first support member 31 and the second support member 32 can be adjusted, so that the first support member 31 and the second support member 32 are in contact with the outer wall line of the bearing ring workpiece 4 to be processed when supporting it. In this way, when the bearing ring workpiece 4 is ground using a grinding machine, the workpiece can be made concentric with the adjusting groove 22 on the self-aligning connecting plate 2, and the first support 31 and the second support 32 mounted on the self-aligning connecting plate 2 can be in contact with the outer wall of the bearing ring workpiece 4. This greatly reduces the contact stress and contact area between the bearing ring workpiece 4 and the first support 31 and the second support 32, thereby significantly reducing the probability of the bearing ring workpiece 4 being scratched by the first support 31 and the second support 32 during the processing, and thus effectively reducing the probability of needing to add a grinding process on the outer diameter surface. Therefore, it is evident that using the bearing ring workpiece support device of this invention to support the bearing ring workpiece 4 during the grinding process can shorten the production cycle of the bearing ring workpiece 4, reduce the production cost of the bearing ring workpiece 4, and improve the processing accuracy of the bearing ring workpiece 4.
Claims
1. A bearing ring workpiece support apparatus, characterized by, The bearing ring workpiece support device includes a support base, a self-aligning connecting plate, a first support member, and a second support member. The support base includes a support base and a support vertical plate. The support vertical plate is vertically fixed on the support base and has a positioning groove. The self-aligning connecting plate has a fan-shaped clearance groove and an arc-shaped adjusting slide groove. The adjusting slide groove is located on the side of the self-aligning connecting plate and close to the edge of the fan-shaped clearance groove. The self-aligning connecting plate is mounted on the support vertical plate, and a fine-tuning component for adjusting the center position of the fan-shaped clearance groove is provided between the self-aligning connecting plate and the support base. The first support member is mounted on the self-aligning connecting plate via a first slide block located in the adjusting slide groove, and the second support member is mounted on the self-aligning connecting plate via a second slide block located in the adjusting slide groove. The first support member and the second support member are arranged at an included angle.
2. The bearing ring workpiece support apparatus of claim 1 wherein, The fine-tuning component includes a horizontal fine-tuning mechanism and a vertical fine-tuning mechanism. The horizontal fine-tuning mechanism is mounted on the support base, and the adjusting end of the horizontal fine-tuning mechanism abuts against the bottom of the self-aligning connecting plate. The vertical fine-tuning mechanism is mounted on the support vertical plate, and the adjusting end of the vertical fine-tuning mechanism abuts against the side of the self-aligning connecting plate.
3. The bearing ring workpiece support apparatus of claim 2 wherein, The horizontal fine-tuning mechanism includes a horizontal fine-tuning bolt and a horizontal fine-tuning nut. The horizontal fine-tuning bolt is installed in a horizontal fine-tuning screw hole on the support base, with the screw head facing the self-aligning connecting plate. The horizontal fine-tuning nut is sleeved on the horizontal fine-tuning bolt and located between the support base and the screw head of the horizontal fine-tuning bolt. The vertical fine-tuning mechanism includes a vertical fine-tuning seat, a vertical fine-tuning bolt, and a vertical fine-tuning nut. The vertical fine-tuning seat is fixed to the side end of the support vertical plate. The vertical fine-tuning bolt is installed in a vertical fine-tuning screw hole on the vertical fine-tuning seat, with the screw head facing the self-aligning connecting plate. The vertical fine-tuning nut is sleeved on the vertical fine-tuning bolt and located between the vertical fine-tuning seat and the screw head of the vertical fine-tuning bolt.
4. The bearing ring workpiece support apparatus of claim 3 wherein, The vertical fine-tuning seat includes a base plate and a connecting block. The base plate is vertically connected to the connecting block, and the vertical fine-tuning screw hole is located on the base plate. The connecting block is installed and fixed on the support vertical plate by connecting bolts.
5. The bearing ring workpiece support apparatus of any one of claims 1-4, wherein, An adjustment shim is provided between the fine-tuning component and the self-aligning connecting plate.
6. The bearing ring workpiece support apparatus of claim 5 wherein, The self-aligning connecting plate is provided with a shim slot for installing the adjusting shim.
7. The bearing ring workpiece support apparatus of any one of claims 1-4, wherein, The first support member includes a first support base, a first floating support seat, a first floating support block, and a first contact block. The first support base is connected to the first slide, and a rotating groove is provided at the top of the first support base. The first floating support seat is installed in the rotating groove by a connecting pin, and the central axis of the connecting pin is perpendicular to the axial section of the fan-shaped relief groove. The top fold of the first floating support seat has a V-shaped structure, and two first floating support grooves are provided on the top fold, which are symmetrically arranged on both sides of the fold line of the top fold. The first floating support block is installed in the first floating support groove by a first positioning pin, and the central axis of the first positioning pin is parallel to the axial section of the fan-shaped relief groove. The first contact block is fixed to the top of the first floating support block, and the first contact block contacts the bearing ring workpiece with its first contact surface facing away from the first floating support block. The second support member includes a second support base, a second floating support block, and a second contact block. The second support base is connected to the second slide. A second floating support groove is provided at the top of the second support base. The second floating support block is installed in the second floating support groove by a second positioning pin, and the central axis of the second positioning pin is parallel to the axial section of the sector-shaped clearance groove. The second contact block is fixed to the top of the second floating support block, and the second contact surface of the second contact block, which is away from the second floating support block, contacts the bearing ring workpiece.
8. The bearing ring workpiece support apparatus of claim 7 wherein, The first support member includes a first connecting block located between and connecting the first support base and the first slide; the second support member includes a second connecting block located between and connecting the second support base and the second slide.
9. The bearing ring workpiece support apparatus of claim 8 wherein, The first connecting block is provided with a first connecting groove, and the first support base is provided with a first connecting latch. When the first support base is connected to the first connecting block, the first connecting latch is engaged in the first connecting groove. The second connecting block is provided with a second connecting groove, and the second support base is provided with a second connecting latch. When the second support base is connected to the second connecting block, the second connecting latch is engaged in the second connecting groove.
10. A grinding machine, characterized by The grinding machine is equipped with a bearing ring workpiece support device as described in any one of claims 1-9.