A large bearing ring machining auxiliary support tool

Abstract

The utility model discloses a large -scale bearing sleeve circle processing auxiliary support frock belongs to bearing sleeve circle processing technical field, it includes box body, the annular groove is established in the box body inside, the incomplete gear ring is rotatably connected in the annular groove, three second half round plates are fixedly connected on the incomplete gear ring, the shaft is rotatably connected on the box body. This large -scale bearing sleeve circle processing auxiliary support frock is through setting up support steel ball, second half round plate, first half round plate, tension spring, incomplete gear ring, gear and screw, and this support frock is supported to pipe blank through three support steel balls, can effectively prevent the phenomenon that pipe blank produces the shaking in the process of rotating, prevents the warping phenomenon of product, improves the processing accuracy, and this support frock can adjust the interval of three support steel balls according to the diameter difference of pipe blank, can support the pipe blank of different diameters, expands its use range.

Description

Technical Field

[0001] This utility model belongs to the field of bearing ring processing technology, specifically a large bearing ring processing auxiliary support tooling. Background Technology

[0002] In the machining of large bearing rings, a three-jaw chuck is typically used to clamp and fix the tubular blank. The machine tool is then started to rotate the three-jaw chuck and the tubular blank, and the relative rotation of the tubular blank and the cutting tool completes the cutting work. However, in actual cutting, because the tubular blank is generally quite long, it is prone to vibration during rotation. After machining, the planar direction of the product often warps, affecting the overall accuracy of the product. Therefore, an auxiliary support fixture for machining large bearing rings is needed to solve the above problems. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides an auxiliary support fixture for processing large bearing rings, which solves the problem that in the actual cutting process, due to the generally long length of the pipe blank, it is easy to vibrate during rotation, and after processing, the plane of the product often warps, affecting the overall accuracy of the product.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A large bearing ring machining auxiliary support fixture, comprising a box body, an annular groove inside the box body, an incomplete toothed ring rotatably connected inside the annular groove, three second semicircular plates fixedly connected to the incomplete toothed ring, a rotating shaft rotatably connected to the box body, a gear fixedly connected to one end of the rotating shaft, the gear meshing with the incomplete toothed ring, and three fixing plates fixedly connected inside the box body, each fixing plate having a through hole;

[0005] A movable column is slidably connected inside the through hole. A first semicircular plate is fixedly connected to one end of the movable column, and a connecting support is fixedly connected to the other end of the movable column. A supporting steel ball is rotatably connected inside the connecting support. A tension spring is sleeved on the movable column. A sleeve is fixedly connected to the box body. The rotating shaft is located inside the sleeve. A screw is threaded onto the sleeve.

[0006] As a further embodiment of this utility model: one end of the tension spring is fixedly connected to the connecting support, and the other end of the tension spring is fixedly connected to the fixing plate.

[0007] As a further embodiment of this utility model: a knob is fixedly connected to one end of the rotating shaft, and the knob has several grooves.

[0008] As a further embodiment of this utility model: two columns are fixedly connected to the bottom of the box body, and a base plate is fixedly connected to the bottom end of the two columns.

[0009] As a further embodiment of this utility model: four mounting holes are provided on the base plate, and the four mounting holes are respectively located at the four corners of the base plate.

[0010] As a further embodiment of this utility model: two sliding grooves are provided on the movable column, and two fixing strips are fixedly connected inside the through hole, with the fixing strips located inside the sliding grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This auxiliary support fixture for machining large bearing rings consists of support steel balls, a second semicircular plate, a first semicircular plate, a tension spring, an incomplete gear ring, gears, and screws. During machining, the blank of the pipe fitting used to machine the bearing ring is placed between the three support steel balls, which support the blank. When the spacing between the three support steel balls needs to be adjusted, the screws are loosened to release the fixed state of the rotating shaft. Turning the knob drives the rotating shaft and gear to rotate. Since the gear meshes with the incomplete gear ring, when the gear rotates, it drives the incomplete gear ring and the second semicircular plate to rotate in the forward direction. As the second semicircular plate rotates, relative movement occurs between the second and first semicircular plates. Because the tension spring provides tension to the connecting support, and the connecting support, movable column, and first semicircular plate are integrated, the first and second semicircular plates will be pressed tightly together. When the second semicircular plate and the first... After the relative movement between the two semicircular plates, the tension of the spring causes the first semicircular plate to move closer to the second semicircular plate, causing the movable column and supporting steel balls to move. This increases the spacing between the three supporting steel balls. If the second semicircular plate rotates in the opposite direction, it will press the first semicircular plate, causing the movable column and supporting steel balls to move, thus decreasing the spacing between the three supporting steel balls. After adjusting the spacing of the three supporting steel balls, tighten the screws to fix the rotating shaft. This support fixture supports the pipe blank using three supporting steel balls, effectively preventing the pipe blank from shaking during rotation and preventing product warping, thus improving processing accuracy. Furthermore, this support fixture can adjust the spacing of the three supporting steel balls according to the diameter of the pipe blank, supporting pipe blanks of different diameters and expanding its application range.

[0013] 2. This auxiliary support fixture for large bearing ring processing, through the setting of fixed bars, sliding grooves, and movable columns, allows relative movement between the second and first semicircular plates as the second semicircular plate rotates. Since the tension spring provides tension to the connecting support, and the connecting support, movable column, and first semicircular plate are integrated, the first and second semicircular plates will be tightly fitted together. When relative movement occurs between the second and first semicircular plates, the tension spring will cause the first semicircular plate to move closer to the second semicircular plate, causing the movable column and supporting steel balls to move. This allows the spacing between the three supporting steel balls to be increased. When the movable column moves, the limiting effect of the sliding groove and fixed bars prevents the movable column from rotating, thus preventing relative rotation between the first and second semicircular plates and ensuring their normal operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This is a structural schematic diagram of the cross-section of the box body of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0018] Figure 5 This is a schematic diagram of the structure of this utility model where the fixed plate and the movable column are separated;

[0019] Figure 6 This is a structural schematic diagram of the cross-section of the connecting support of this utility model;

[0020] Figure 7 This is a schematic diagram of the cross-section of the box body and the incomplete toothed ring of this utility model;

[0021] In the diagram: 1. Box body; 2. Column; 3. Base plate; 4. Mounting hole; 5. Sleeve; 6. Shaft; 7. Knob; 8. Screw; 9. Gear; 10. Incomplete gear ring; 11. Fixing plate; 12. Movable column; 13. First semicircular plate; 14. Second semicircular plate; 15. Tension spring; 16. Connecting support; 17. Slide groove; 18. Through hole; 19. Fixing strip; 20. Supporting steel ball; 21. Annular groove. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figure 1-7As shown, this utility model provides a technical solution: an auxiliary support fixture for processing large bearing rings, including a box body 1. The box body 1 has an annular groove 21 inside. Because of the annular groove 21, it can limit the incomplete toothed ring 10 and prevent the incomplete toothed ring 10 from disengaging from the box body 1 when rotating, thereby ensuring the normal operation of the incomplete toothed ring 10. The incomplete toothed ring 10 is rotatably connected inside the annular groove 21. Three second semicircular plates 14 are fixedly connected to the incomplete toothed ring 10. A rotating shaft 6 is rotatably connected to the box body 1. A knob 7 is fixedly connected to one end of the rotating shaft 6. The knob 7 has several grooves. Because the knob 7 has several grooves, it can increase friction, facilitate the operation of the knob 7, and improve the ease of operation.

[0024] A gear 9 is fixedly connected to one end of the rotating shaft 6. The gear 9 meshes with the incomplete gear ring 10. Three fixed plates 11 are fixedly connected inside the box body 1. The fixed plates 11 have through holes 18. A movable column 12 is slidably connected inside the through holes 18. Two sliding grooves 17 are opened on the movable column 12. Two fixing strips 19 are fixedly connected inside the through holes 18. Because of the sliding grooves 17 and fixing strips 19, when the movable column 12 moves, the limiting effect of the sliding grooves 17 and fixing strips 19 prevents the movable column 12 from rotating. This prevents relative rotation between the first semicircular plate 13 and the second semicircular plate 14, thereby ensuring the normal operation of the first semicircular plate 13 and the second semicircular plate 14. The fixing strips 19 are located inside the sliding grooves 17.

[0025] One end of the movable column 12 is fixedly connected to a first semicircular plate 13, and the other end of the movable column 12 is fixedly connected to a connecting support 16. Because the connecting support 16 is provided, and the part of the supporting steel ball 20 located inside the connecting support 16 is larger than half of the supporting steel ball 20 itself, it can be ensured that the supporting steel ball 20 will not detach from the interior of the connecting support 16 when rotating, thus ensuring the normal operation of the supporting steel ball 20. The supporting steel ball 20 is rotatably connected inside the connecting support 16. Because the supporting steel ball 20 is provided, it supports the pipe blank. Since the supporting steel ball 20 is rotatably connected inside the connecting support 16, there is a small rolling friction between the supporting steel ball 20 and the pipe blank. When the pipe blank rotates, the wear is small. A tension spring 15 is sleeved on the movable column 12. One end of the tension spring 15 is fixedly connected to the connecting support 16, and the other end of the tension spring 15 is fixedly connected to the fixed plate 11. A sleeve 5 is fixedly connected to the box body 1.

[0026] The rotating shaft 6 is located inside the sleeve 5. The sleeve 5 is threaded with screws 8. Two columns 2 are fixedly connected to the bottom of the box 1. The bottom of the two columns 2 is fixedly connected to the bottom plate 3. The bottom plate 3 has four mounting holes 4, which are located at the four corners of the bottom plate 3.

[0027] The working principle of this utility model is as follows:

[0028] In use, multiple support fixtures are first installed on the worktable at equal intervals through mounting holes 4. During processing, the pipe blank for processing bearing rings is placed between three support steel balls 20, using the three support steel balls 20 to support the pipe blank. When it is necessary to adjust the spacing of the three support steel balls 20, the screws 8 are loosened to release the fixed state of the rotating shaft 6. Rotating the knob 7 drives the rotating shaft 6 and gear 9 to rotate. Since gear 9 meshes with the incomplete gear ring 10, when gear 9 rotates, it can drive the incomplete gear ring 10 and the second semicircular plate 14 to rotate in the forward direction. As the second semicircular plate 14 rotates, relative movement will occur between the second semicircular plate 14 and the first semicircular plate 13. Since the tension spring 15 provides tension to the connecting support 16, and Furthermore, the connecting support 16, the movable column 12, and the first semicircular plate 13 are integrated, which will cause the first semicircular plate 13 and the second semicircular plate 14 to be in close contact. When the second semicircular plate 14 and the first semicircular plate 13 move relative to each other, the tension of the tension spring 15 will cause the first semicircular plate 13 to move closer to the second semicircular plate 14, causing the movable column 12 and the supporting steel ball 20 to move, thereby increasing the distance between the three supporting steel balls 20. If the second semicircular plate 14 rotates in the opposite direction, the second semicircular plate 14 will squeeze the first semicircular plate 13, causing the movable column 12 and the supporting steel ball 20 to move, thereby decreasing the distance between the three supporting steel balls 20. After the distance between the three supporting steel balls 20 is adjusted, the screw 8 is tightened to fix the rotating shaft 6.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A large bearing ring machining auxiliary support tooling, comprising a box body (1), characterized in that: The box body (1) has an annular groove (21) inside, and an incomplete toothed ring (10) is rotatably connected inside the annular groove (21). Three second semicircular plates (14) are fixedly connected to the incomplete toothed ring (10). A rotating shaft (6) is rotatably connected to the box body (1). A gear (9) is fixedly connected to one end of the rotating shaft (6). The gear (9) meshes with the incomplete toothed ring (10). Three fixing plates (11) are fixedly connected inside the box body (1). Through holes (18) are opened on the fixing plates (11). A movable column (12) is slidably connected inside the through hole (18). A first semicircular plate (13) is fixedly connected to one end of the movable column (12). A connecting support (16) is fixedly connected to the other end of the movable column (12). A supporting steel ball (20) is rotatably connected inside the connecting support (16). A tension spring (15) is sleeved on the movable column (12). A sleeve (5) is fixedly connected to the box body (1). The rotating shaft (6) is located inside the sleeve (5). A screw (8) is threaded onto the sleeve (5).

2. The auxiliary support fixture for machining large bearing rings according to claim 1, characterized in that: One end of the tension spring (15) is fixedly connected to the connecting support (16), and the other end of the tension spring (15) is fixedly connected to the fixing plate (11).

3. The auxiliary support fixture for machining large bearing rings according to claim 1, characterized in that: A knob (7) is fixedly connected to one end of the rotating shaft (6), and the knob (7) has several grooves.

4. The auxiliary support fixture for machining large bearing rings according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected to two columns (2), and the bottom ends of the two columns (2) are fixedly connected to a base plate (3).

5. The auxiliary support fixture for machining large bearing rings according to claim 4, characterized in that: The base plate (3) has four mounting holes (4), which are located at the four corners of the base plate (3).

6. The auxiliary support fixture for machining large bearing rings according to claim 1, characterized in that: Two grooves (17) are provided on the movable column (12), and two fixing strips (19) are fixedly connected inside the through hole (18). The fixing strips (19) are located inside the grooves (17).

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