Clamp for turning bearing ring

Abstract

The utility model relates to a clamp for turning a bearing ring, and aims to solve the problems that in the current using process, different bearing rings are different in size, the radian of a clamping plate is fixed, so that the clamping plate cannot be attached to the outer wall of the bearing ring to cause instability in the turning process, the bearing ring can only be clamped from the outer side, and the machining efficiency is high. The machining device comprises a base, a clamping plate, a clamping rod and an arc-shaped inserting block, a first adjusting groove is formed in the center of the top end of the base, a first two-way lead screw is rotationally connected to the inner side of the first adjusting groove, and first threaded blocks are in threaded connection with the two sides of the surface of the first two-way lead screw correspondingly; a clamping plate is fixedly connected to the top end of the first threaded block, through rectangular grooves are formed in the two sides of the side surface of the clamping plate, and side grooves are formed in the front and rear side walls of the base in the vertical direction of the first adjusting groove; the clamping device has the advantages of being stable in clamping, diversified in clamping mode and high in practicability.

Description

Technical Field

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

[0002] Bearing rings are annular parts of centripetal rolling bearings with one or more raceways. Turning is usually used in the processing process. Turning is a cutting method performed on a lathe. It mainly changes the shape and size of the blank through the rotation of the workpiece and the linear or curved movement of the tool to process it into a part that meets the requirements. During turning, a fixture is needed to fix the bearing rings to prevent sliding during the processing process, which may cause the turning process to fail.

[0003] According to the patent publication CN 216576748 U, a fixture for machining bearing rings is provided. By providing a mounting plate, a rotating rod, a slide, a slider, a clamping plate, a connecting rod, a connecting block, and a manual member, it replaces the simpler workpiece machining fixture. The fixture can quickly center the bearing ring on the operating table, thereby reducing the difficulty of positioning the bearing ring for the operator, thereby improving the operator's work efficiency and thus enhancing the practicality of the device. In the process of implementing the utility model, the inventors discovered that at least the following problems in the prior art have not been solved: although the problem of difficult bearing ring positioning is solved by providing clamping plates in four directions to simultaneously clamp the bearing ring, different bearing rings have different sizes during use, and the curvature of the clamping plates is fixed. Therefore, during use, the clamping plates may not fit the outer wall of the bearing ring, resulting in instability during turning. Moreover, the bearing ring can only be clamped from the outside, making it impossible to process the outer side of the bearing ring. Therefore, a new technical solution is needed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology, adapt to actual needs, and provide a clamp for turning bearing rings to solve the current technical problems that different bearing rings have different sizes, and the curvature of the clamping plate is fixed, so it may be unstable during turning because it cannot fit the outer wall of the bearing ring, and the bearing ring can only be clamped from the outside, resulting in the inability to process the outside of the bearing ring.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a clamp for turning bearing rings is designed, including a base, a clamping plate, a clamping rod and an arc-shaped plug-in block, a No. 1 adjustment slot is provided in the center of the top of the base, a No. 1 bidirectional screw rod is rotatably connected to the inner side of the No. 1 adjustment slot, both sides of the surface of the No. 1 bidirectional screw rod are threadedly connected to a No. 1 threaded block, the top of the No. 1 threaded block is fixedly connected with a clamping plate, and both sides of the side surface of the clamping plate are provided with a penetrating rectangular slot, the front and rear side walls of the base in the vertical direction of the No. 1 adjustment slot are provided with side slots, and the inner sides of the side slots are respectively rotatably connected with a threaded rod and a fixedly connected slide rod, and the two ends of the clamping rod are respectively located on both sides The inner sides of the side grooves are respectively threadedly connected on the surface of the threaded rod and the surface of the sliding rod for sliding connection, and the clamping rod passes through the rectangular groove horizontally and fits with the upper and lower inner walls of the rectangular groove; a No. 2 adjusting groove is provided on both sides of the top of the base in the vertical direction of the No. 1 adjusting groove, and the inner side of the No. 2 adjusting groove is rotatably connected with a No. 2 two-way screw rod, and the surface of the No. 2 two-way screw rod is threadedly connected with a No. 2 threaded block, and the No. 2 threaded block is respectively located on the inner sides of the No. 2 adjusting grooves on both sides, and a receiving groove is provided on the top of the No. 2 threaded block, and an inner clamping block is rotatably connected between the front and rear inner side walls of the receiving groove, and a slot is provided on the top of the inner clamping block, and the bottom protrusion of the arc-shaped plug block is vertically movably plugged into the inner side of the slot.

[0006] Preferably, the No. 2 bidirectional screw is located above the No. 1 bidirectional screw, and the No. 2 bidirectional screw and the No. 1 bidirectional screw are perpendicular to each other, and the two No. 2 thread blocks on the surface of the No. 2 bidirectional screw are respectively located on the inner sides of the No. 2 adjustment grooves on both sides.

[0007] Preferably, one end of the No. 1 bidirectional screw rod passes through the inner wall of the No. 1 strip groove and is located on the outside of the base, one end of the No. 2 bidirectional screw rod passes through the inner wall of the No. 2 adjustment groove and is located on the outside of the base, one end of the threaded rod passes through the inner wall of the side groove and is located on the outside of the base, and the No. 1 bidirectional screw rod, the No. 2 bidirectional screw rod and the end of the threaded rod located on the outside of the base are all fixedly connected with a torsion block.

[0008] Preferably, a triangular clamping groove is provided in the center of the surface of the clamping plate and the rack rod facing the center of the base.

[0009] Preferably, a central column is fixedly connected to the center of the top of the base.

[0010] Preferably, a fixing bolt is threadedly connected to the surface of the inner clamping block near the center of the base. The fixing bolt passes through the outer surface of the inner clamping block and is threadedly connected to the protrusion at the bottom of the arc-shaped inserting block inside the slot.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model can clamp the inner side of the bearing ring through the No. 2 bidirectional screw rod, the No. 2 threaded block and the inner clamping block. The inner clamping block is usually stored in the storage groove on the surface of the No. 2 threaded block, so as not to delay the placement of the bearing ring and the clamping and fixing of the outside. When it is needed, it is rotated out of the storage groove, and then the No. 2 bidirectional screw rod is twisted to drive the No. 2 threaded block to move toward the outside of the base. During the movement, the inner clamping block will gradually clamp the bearing ring, which is convenient for the processing of the outside. Cooperating with the outer splint and the clamping rod, the device has the clamping ability of both the outside and the inside, thereby adapting to different processing requirements and improving the practicality of the device.

[0013] 2. The utility model can adapt to the curvature of bearing rings of different sizes through the slot and the arc-shaped clamping plate. The arc-shaped insert is inserted into the top of the inner clamping block. When the inner clamping block is pressed against the bearing ring, the arc-shaped insert will fit the inner wall of the bearing ring, thereby making the inner clamping and fixation more stable. In addition, the arc-shaped clamping block can be replaced to adapt to the curvature of different bearing rings, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the first adjustment slot of the present invention;

[0016] Figure 3 This is a cross-sectional schematic diagram of the No. 2 regulating slot of the present utility model;

[0017] Figure 4 This is a partial enlarged view of point A of the present utility model;

[0018] In the figure: 1. Base; 2. Adjustment slot No. 1; 3. Bidirectional screw No. 1; 4. Threaded block No. 1; 5. Clamp; 501. Rectangular slot; 6. Side slot; 7. Threaded rod; 8. Sliding rod; 9. Clamp rod; 10. Center column; 11. Adjustment slot No. 2; 12. Bidirectional screw No. 2; 13. Threaded block No. 2; 131. Storage slot; 14. Inner clamp; 141. Slot; 15. Arc-shaped insert; 16. Fixing bolt; 17. Triangular clamp slot; 18. Twist block. DETAILED DESCRIPTION

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: A fixture for turning bearing rings, see Figures 1 to 4, including a base 1, a splint 5, a clamping rod 9 and an arc-shaped insert 15. The top center of the base 1 is provided with a No. 1 adjustment slot 2. The inside of the No. 1 adjustment slot 2 is rotatably connected to a No. 1 two-way screw rod 3. Both sides of the surface of the No. 1 two-way screw rod 3 are threadedly connected to a No. 1 threaded block 4. The top of the No. 1 threaded block 4 is fixedly connected with a splint 5. The No. 1 two-way screw rod 3 drives the No. 1 threaded block 4 and the splint 5 to move toward the center of the base 1, thereby limiting and clamping the bearing ring in the front and rear directions, and a through rectangular slot 501 is opened on both sides of the side surface of the splint 5. The No. 1 adjustment slot 2 is perpendicular to the front and rear sides of the base 1. The walls are all provided with side grooves 6, and the inner sides of the side grooves 6 are rotatably connected with threaded rods 7 and fixedly connected with sliding rods 8. The two ends of the clamping rod 9 are respectively located on the inner sides of the side grooves 6 on both sides and are respectively threadedly connected on the surfaces of the threaded rods 7 and slidably connected on the surfaces of the sliding rods 8. The threaded rods 7 are rotated to move the clamping rods 9 on the left and right sides toward the center of the base 1, thereby restricting and clamping the bearing rings in the left and right directions, thereby clamping the bearing rings in two directions perpendicular to each other on the outside; the clamping rod 9 passes horizontally through the rectangular groove 501 and fits against the upper and lower inner walls of the rectangular groove 501, thereby ensuring stability during the sliding process.

[0021] At the same time, a No. 2 adjusting slot 11 is provided on both sides of the top of the base 1 in the vertical direction of the No. 1 adjusting slot 2. The inner side of the No. 2 adjusting slot 11 is rotatably connected to the No. 2 bidirectional screw rod 12. Both sides of the surface of the No. 2 bidirectional screw rod 12 are threadedly connected to the No. 2 thread block 13. The No. 2 thread block 13 is respectively located on the inner side of the No. 2 adjusting slot 11 on both sides. A receiving slot 131 is provided on the top of the No. 2 thread block 13. The front and rear inner side walls of the receiving slot 131 are rotatably connected with an inner clamping block 14. The No. 2 bidirectional screw rod 12 drives the No. 2 thread block 13 to move toward the outside of the base 1. During the movement, the inner clamping block 14 will gradually clamp the bearing ring, which is convenient for processing the outer side. Since the device has the clamping ability of both the outer and inner sides, it is more practical. A slot 141 is provided at the top of the inner clamping block 14, and the bottom protrusion of the arc-shaped insert block 15 is vertically movably inserted into the inner side of the slot 141. When the inner clamping block 14 is pressed against the bearing ring, the arc-shaped insert block 15 will fit the inner wall of the bearing ring, thereby making the clamping and fixing of the inner side more stable, and the arc-shaped clamping block can be replaced to adapt to the curvature of different bearing rings.

[0022] For details, see Figure 2 and Figure 3 The second bidirectional screw rod 12 is located above the first bidirectional screw rod 3, and the second bidirectional screw rod 12 is perpendicular to the first bidirectional screw rod 3. The two second threaded blocks 13 on the surface of the second bidirectional screw rod 12 are respectively located on the inner sides of the second adjustment groove 11 on both sides. The first bidirectional screw rod 3 and the second bidirectional screw rod 12 are independent of each other and do not affect each other. The thread on the surface of the second bidirectional screw rod 12 starts from the center of the base 1 and spreads toward both sides, so it can ensure that the second threaded blocks 13 on both sides can move relative to each other.

[0023] For further information, see Figure 1 One end of the No. 1 bidirectional screw rod 3 passes through the inner wall of the No. 1 strip groove and is located on the outside of the base 1, one end of the No. 2 bidirectional screw rod 12 passes through the inner wall of the No. 2 adjustment groove 11 and is located on the outside of the base 1, one end of the threaded rod 7 passes through the inner wall of the side groove 6 and is located on the outside of the base 1, and the No. 1 bidirectional screw rod 3, the No. 2 bidirectional screw rod 12 and the threaded rod 7 at one end outside the base 1 are fixedly connected with a torsion block 18, which is convenient for manual grip to drive it to rotate, and manual rotation is more precise and stable during the adjustment process.

[0024] It is worth noting that, see Figure 1 A triangular clamping groove 17 is provided in the center of the surface of the splint 5 and the frame rod facing the center of the base 1. The triangular clamping groove 17 can make the splint 5 and the clamping block more stable when fixing the bearing ring from the outside.

[0025] It is worth noting that see Figure 1 A center column 10 is fixedly connected to the center of the top of the base 1. The center column 10 is located in the center of the base 1. When the bearing ring is placed before clamping, the bearing ring is placed on the outside of the center column 10, so that the bearing ring cannot produce a large deviation under the obstruction of the center column 10, so that it can be roughly located in the center of the base 1, thereby improving the clamping speed.

[0026] It is worth mentioning that see Figure 4 The surface of the inner clamping block 14 near the center of the base 1 is threadedly connected with a fixing bolt 16. The fixing bolt 16 passes through the outer surface of the inner clamping block 14 and is threadedly connected to the raised protrusion at the bottom of the arc-shaped plug-in block 15 inside the slot 141. The arc-shaped plug-in block 15 is kept fixed in the slot 141 under the connection of the fixing bolt 16. When it needs to be replaced, you only need to unscrew the fixing bolt 16, which is more convenient.

[0027] Working principle: Place the bearing ring directly in the center of the base 1, rotate the No. 1 bidirectional screw 3 to drive the No. 1 threaded block 4 and the clamping plate 5 toward the center of the base 1, thereby limiting and clamping the bearing ring in the front and rear directions, and then rotate the threaded rod 7 to move the clamping rods 9 on both sides toward the center of the base 1, thereby limiting and clamping the bearing ring in the left and right directions, thereby ensuring the stability of the clamping. The inner clamping block 14 is usually stored in the storage groove 131 on the surface of the No. 2 threaded block 13, so as not to delay the placement of the bearing ring and the clamping and fixing of the outside. When it is needed, it will be turned out from the storage groove 131, and then twist the No. 2 threaded block 13 to fix it. The No. 2 bidirectional screw rod 12 drives the No. 2 threaded block 13 to move toward the outside of the base 1. During the movement, the inner clamping block 14 will gradually clamp the bearing ring, which is convenient for processing on the outside. Since the device has the clamping ability of both the outside and the inside, it adapts to different processing requirements and improves the practicality of the device. An arc-shaped plug-in block 15 is inserted into the top of the inner clamping block 14. When the inner clamping block 14 is pressed against the bearing ring, the arc-shaped plug-in block 15 will fit the inner wall of the bearing ring, thereby making the clamping and fixation of the inside more stable. In addition, the arc-shaped clamping block can be replaced to adapt to the curvature of different bearing rings, thereby improving the practicality of the device.

[0028] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0029] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A fixture for turning bearing rings, comprising a base (1), a clamping plate (5), a clamping rod (9) and an arc-shaped insert (15), characterized in that: The top center of the base (1) is provided with a No. 1 adjustment slot (2), the inner side of the No. 1 adjustment slot (2) is rotatably connected to a No. 1 bidirectional screw rod (3), both sides of the surface of the No. 1 bidirectional screw rod (3) are threadedly connected to a No. 1 threaded block (4), the top of the No. 1 threaded block (4) is fixedly connected to a clamping plate (5), and both sides of the side surface of the clamping plate (5) are provided with a through rectangular slot (501), the front and rear side walls of the base (1) in the vertical direction of the No. 1 adjustment slot (2) are provided with side slots (6), and the inner sides of the side slots (6) are respectively rotatably connected to a threaded rod (7) and fixedly connected to a sliding rod (8), the two ends of the clamping rod (9) are respectively located on the inner sides of the side slots (6) on both sides and are respectively threadedly connected to the surface of the threaded rod (7) and slidably connected to the surface of the sliding rod (8), and the clamping rod (9) passes horizontally through the rectangular slots (6). The first adjusting groove (501) is provided with a second adjusting groove (11) on both sides of the top of the base (1) in the vertical direction of the first adjusting groove (2), and the inner side of the second adjusting groove (11) is rotatably connected with a second bidirectional screw rod (12), and the surface of the second bidirectional screw rod (12) is threadedly connected with a second thread block (13) on both sides, and the second thread block (13) is respectively located on the inner side of the second adjusting groove (11) on both sides, and the top of the second thread block (13) is provided with a receiving groove (131), and an inner clamping block (14) is rotatably connected between the front and rear inner side walls of the receiving groove (131), and the top of the inner clamping block (14) is provided with a slot (141), and the bottom protrusion of the arc-shaped plug-in block (15) is vertically movably plugged into the inner side of the slot (141).

2. A fixture for turning bearing rings according to claim 1, characterized in that: The second bidirectional screw rod (12) is located above the first bidirectional screw rod (3), and the second bidirectional screw rod (12) and the first bidirectional screw rod (3) are perpendicular to each other. The two second thread blocks (13) on the surface of the second bidirectional screw rod (12) are respectively located inside the second adjustment grooves (11) on both sides.

3. A fixture for turning bearing rings according to claim 1, characterized in that: One end of the No. 1 bidirectional screw rod (3) passes through the inner wall of the No. 1 strip groove and is located outside the base (1); one end of the No. 2 bidirectional screw rod (12) passes through the inner wall of the No. 2 adjustment groove (11) and is located outside the base (1); one end of the threaded rod (7) passes through the inner wall of the side groove (6) and is located outside the base (1); and the ends of the No. 1 bidirectional screw rod (3), the No. 2 bidirectional screw rod (12) and the threaded rod (7) located outside the base (1) are all fixedly connected to a torsion block (18).

4. A fixture for turning bearing rings according to claim 1, characterized in that: A triangular clamping groove (17) is provided at the center of the surface of the clamping plate (5) and the rack rod facing the center of the base (1).

5. A fixture for turning bearing rings according to claim 1, characterized in that: A central column (10) is fixedly connected to the center of the top of the base (1).

6. A fixture for turning bearing rings according to claim 1, characterized in that: A fixing bolt (16) is threadedly connected to the surface of the inner clamping block (14) near the center of the base (1). The fixing bolt (16) passes through the outer surface of the inner clamping block (14) and is threadedly connected to a protrusion at the bottom of the arc-shaped inserting block (15) inside the slot (141).

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