High-precision trepanning device for outer ring of bearing hub

Abstract

The utility model discloses a bearing hub outer ring high-precision trepanning device which comprises a workbench, stand columns are fixedly connected to the four ends of the upper portion of the workbench, a third driving motor is fixedly connected to one end of the outer side of the workbench, and the output end of the third driving motor is inwards provided with a two-way screw in a penetrating mode. A second threaded block is in threaded connection with the two-way screw rod, a second open groove is formed in the workbench, the second threaded block penetrates through the second open groove and is upwards and fixedly connected with second arc-shaped plates, and a third driving motor, the two-way screw rod and the second threaded block can drive the two second arc-shaped plates to move relatively; the bearing hub can be positioned and clamped through the second arc-shaped plates, and the first arc-shaped plates can have elastic acting force under the action of the sliding rods, the sliding blocks and the springs, so that the bearing hub outer ring can be subjected to double positioning, the stability of the bearing hub outer ring during trepanning is ensured, and the problem that the precision of the bearing hub outer ring is affected due to deviation is prevented.

Description

Technical Field

[0001] The utility model relates to the field of bearing hub processing, in particular to a high-precision hole opening device for the outer ring of a bearing hub. Background Art

[0002] The wheel hub bearing is one of the key parts of the automobile. Its main function is to bear weight and provide precise guidance for the rotation of the wheel hub, which requires it to bear not only axial load but also radial load. The wheel hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings into one unit and has the advantages of good assembly performance, no need for clearance adjustment, light weight, compact structure, large load capacity, grease can be pre-loaded for sealed bearings, no need for external wheel hub seals and no need for maintenance. It has been widely used in cars and is also gradually expanding its application in trucks.

[0003] The bearing hub needs to be drilled with holes during the production process, and the bearing hub needs to be clamped and fixed during the drilling process. The traditional bearing hub clamping device has many shortcomings during use. For example, during the drilling process of the bearing hub, the clamping device needs to repeatedly clamp the bearing hub to achieve the effect of drilling holes at different positions of the bearing hub. However, the repeated clamping process will waste the operator's working time, the operation is inconvenient, and the drilling efficiency of the bearing hub is affected. Summary of the invention

[0004] The utility model aims to provide a high-precision hole opening device for the outer ring of a bearing hub, which solves the problem in the prior art that a clamping device is required to repeatedly clamp the bearing hub.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision hole opening device for the outer ring of a bearing hub, comprising a workbench, four ends of the upper side of the workbench are fixedly connected with columns, one end of the outer side of the workbench is fixedly connected with a third drive motor, an output end of the third drive motor is penetrated and inwardly provided with a bidirectional screw, a second threaded block is threadedly connected to the bidirectional screw, and a second slot is opened on the workbench;

[0006] The second threaded block passes through the second slot and is fixedly connected with the second arc-shaped plate upwardly. Slide grooves are also provided at both ends above the workbench. A slide rod is fixedly connected inside the slide groove. A spring is sleeved on the slide rod.

[0007] As a further description of the above technical solution: a sliding block is slidably connected to the sliding rod, and a first arc-shaped plate is fixedly connected to the upper end of the sliding block.

[0008] As a further description of the above technical solution: the inner end of the column is fixedly connected to a fixing frame, and the outer end of the fixing frame is fixedly connected to a first driving motor.

[0009] As a further description of the above technical solution: a first lead screw is provided inwardly through the output end of the first driving motor, and a first threaded block is threadedly connected to the first lead screw.

[0010] As a further description of the above technical solution: a first slot is opened on the inner side of the fixed frame, and the first threaded block passes through the first slot and is fixedly connected to the movable frame inwardly.

[0011] As a further description of the above technical solution: a third slot is opened inside the movable frame, a second drive motor is fixedly connected inside the third slot, a second lead screw is fixedly connected to the output end of the second drive motor, and a third threaded block is threadedly connected to the second lead screw.

[0012] As a further description of the above technical solution: the lower end of the third threaded block is fixedly connected to a cylinder, the lower end of the cylinder is fixedly connected to a connecting plate, the lower end of the connecting plate is fixedly connected to a fourth drive motor, and the output end of the fourth drive motor is fixedly connected to a drill bit.

[0013] The utility model has the following beneficial effects:

[0014] Compared with the prior art, the high-precision hole-punching device for the outer ring of the bearing hub can drive the two second arc-shaped plates to move relative to each other by setting a third driving motor, a bidirectional screw and a second threaded block, and the bearing hub can be positioned and clamped by the second arc-shaped plates. Under the action of the sliding rod, the slider and the spring, the first arc-shaped plates can have an elastic force, so that the outer ring of the bearing hub can be double-positioned, ensuring the stability of the outer ring of the bearing hub when punching a hole, and preventing the problem of deviation affecting its accuracy;

[0015] Compared with the prior art, this high-precision hole-punching device for the outer ring of a bearing hub can adjust the horizontal and vertical positions of the entire hole-punching assembly by setting a first drive motor and a third drive motor, thereby being able to perform hole-punching operations at different positions of the outer ring of the bearing hub, thereby improving the practicability and accuracy of the entire device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a top view of a workbench of the utility model.

[0020] Figure 3 It is a side view of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the movable frame of the utility model.

[0022] Legend:

[0023] 1. Workbench; 2. First drive motor; 3. First lead screw; 4. First threaded block; 5. Movable frame; 6. First slot; 7. Fixed frame; 8. Column; 9. Second lead screw; 10. Second drive motor; 11. First arc plate; 12. Second slot; 13. Second arc plate; 14. Sliding block; 15. Second threaded block; 16. Third drive motor; 17. Bidirectional screw; 18. Spring; 19. Sliding rod; 20. Slide groove; 21. Cylinder; 22. Connecting plate; 23. Fourth drive motor; 24. Drill; 25. Third slot; 26. Third threaded block. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment of a high-precision hole punching device for the outer ring of a bearing hub, comprising a workbench 1, four ends of the upper side of the workbench 1 are fixedly connected with columns 8, and the fixing frame 7 can be stably supported by setting the columns 8, and one end of the outer side of the workbench 1 is fixedly connected with a third drive motor 16, and the output end of the third drive motor 16 is penetrated and inwardly provided with a bidirectional screw 17, and the bidirectional screw 17 is threadedly connected with a second threaded block 15, and a second slot 12 is provided on the workbench 1, and the bidirectional screw 17 can be driven to rotate by starting the third drive motor 16, and under the action of the threaded connection, the second threaded block 15 can drive the second arc plate 13 to perform double positioning and clamping on the outer ring of the bearing hub, thereby ensuring the stability of the outer ring of the bearing hub during the hole punching operation;

[0026] The second threaded block 15 passes through the second slot 12 and is fixedly connected to the second arc-shaped plate 13 upward. Slide grooves 20 are also provided at the upper two ends of the workbench 1. A slide rod 19 is fixedly connected inside the slide groove 20. A spring 18 is sleeved on the slide rod 19. A slider 14 is slidably connected to the slide rod 19. The upper end of the slider 14 is fixedly connected to the first arc-shaped plate 11. The slider 14 can drive the first arc-shaped plate 11 to slide on the slide rod 19, and the first arc-shaped plate 11 can have an elastic force under the action of the spring 18, so that the first arc-shaped plate 11 at both ends is pulled outward. Under the action of the spring 18, the first arc-shaped plate 11 can have an elastic force, so that the first arc-shaped plate 11 can be positioned and clamped at both ends of the outer ring of the bearing hub through the first arc-shaped plate 11, thereby improving the stability of the opening of the bearing hub;

[0027] The inner end of the column 8 is fixedly connected with a fixing frame 7, and the outer end of the fixing frame 7 is fixedly connected with a first driving motor 2. The output end of the first driving motor 2 is penetrated and inwardly provided with a first screw 3, and the first screw 3 is threadedly connected with a first thread block 4. By starting the first driving motor 2, the first screw 3 can be driven to rotate. The inner side of the fixing frame 7 is provided with a first slot 6, and the first thread block 4 penetrates the first slot 6 and is fixedly connected inwardly with a movable frame 5. Under the action of the threaded connection, the first thread block 4 can drive the movable frame 5 to move horizontally, thereby adjusting the horizontal position of the opening assembly;

[0028] A third slot 25 is provided inside the movable frame 5, and a second drive motor 10 is fixedly connected inside the third slot 25. A second lead screw 9 is fixedly connected to the output end of the second drive motor 10, and a third threaded block 26 is threadedly connected to the second lead screw 9. By starting the second drive motor 10, the second lead screw 9 can be driven to rotate. Under the action of the threaded connection, the third threaded block 26 can drive the hole opening component below to move longitudinally, so that the hole opening position can be adjusted according to different bearing hubs, thereby improving the adjustability and processing accuracy of the device;

[0029] The lower end of the third threaded block 26 is fixedly connected to the cylinder 21, the lower end of the cylinder 21 is fixedly connected to the connecting plate 22, the lower end of the connecting plate 22 is fixedly connected to the fourth drive motor 23, the output end of the fourth drive motor 23 is fixedly connected to the drill bit 24, and starting the cylinder 21 and the fourth drive motor 23 can realize the hole opening operation on the outer ring of the bearing hub.

[0030] Working principle: When the device is used, first place the outer ring of the bearing hub that needs to be drilled on the workbench 9, pull the first arc plates 11 at both ends outward, and the first arc plates 11 can have elastic force under the action of the spring 18, so that the two ends of the outer ring of the bearing hub can be positioned and clamped through the first arc plates 11, and then start the third drive motor 16 to drive the bidirectional screw 17 to rotate, and under the action of the threaded connection, the second threaded block 15 can drive the second arc plate 13 to double-position and clamp the outer ring of the bearing hub, ensuring the stability of the outer ring of the bearing hub during the drilling operation, and then start the first drive motor 2 to enable the first threaded block 4 to drive the drilling assembly to adjust horizontally, and start the third drive motor 16 to enable the third threaded block 26 to drive the drilling assembly to adjust the longitudinal position, so that the drill bit 24 can correspond to the drilling position of the outer ring of the bearing hub, and finally start the cylinder 21 and the fourth drive motor 23 to realize the drilling operation on the outer ring of the bearing hub.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A high-precision hole-making device for a bearing hub outer ring, comprising a workbench (1), characterized in that: The four upper ends of the workbench (1) are fixedly connected to columns (8); an outer end of the workbench (1) is fixedly connected to a third drive motor (16); a bidirectional screw (17) is provided inwardly through the output end of the third drive motor (16); a second threaded block (15) is threadedly connected to the bidirectional screw (17); and a second slot (12) is provided on the workbench (1); The second threaded block (15) passes through the second slot (12) and is fixedly connected to the second arc-shaped plate (13) upwardly. The upper two ends of the workbench (1) are also provided with sliding slots (20). The interior of the sliding slot (20) is fixedly connected to a sliding rod (19), and a spring (18) is sleeved on the sliding rod (19).

2. A high-precision hole opening device for a bearing hub outer ring according to claim 1, characterized in that: The sliding rod (19) is slidably connected to a sliding block (14), and the upper end of the sliding block (14) is fixedly connected to a first arc-shaped plate (11).

3. The high-precision hole-drilling device for the outer ring of a bearing hub according to claim 1, characterized in that: The inner end of the upright column (8) is fixedly connected to a fixing frame (7), and the outer end of the fixing frame (7) is fixedly connected to a first driving motor (2).

4. A high-precision hole-drilling device for a bearing hub outer ring according to claim 3, characterized in that: A first lead screw (3) is provided inwardly through the output end of the first drive motor (2), and a first threaded block (4) is threadedly connected to the first lead screw (3).

5. A high-precision hole-drilling device for a bearing hub outer ring according to claim 4, characterized in that: A first slot (6) is provided on the inner side of the fixed frame (7), and the first threaded block (4) passes through the first slot (6) and is fixedly connected inwardly to the movable frame (5).

6. A high-precision hole-drilling device for a bearing hub outer ring according to claim 5, characterized in that: A third slot (25) is provided inside the movable frame (5), a second drive motor (10) is fixedly connected inside the third slot (25), a second lead screw (9) is fixedly connected to the output end of the second drive motor (10), and a third threaded block (26) is threadedly connected to the second lead screw (9).

7. A high-precision hole-drilling device for a bearing hub outer ring according to claim 6, characterized in that: The lower end of the third threaded block (26) is fixedly connected to a cylinder (21), the lower end of the cylinder (21) is fixedly connected to a connecting plate (22), the lower end of the connecting plate (22) is fixedly connected to a fourth drive motor (23), and the output end of the fourth drive motor (23) is fixedly connected to a drill bit (24).

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