Bearing seat drilling jig
Patent Information
- Application Number
- CN202522575314.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-04
AI Technical Summary
[0004]本实用新型的目的在于提供轴承座钻孔夹具,以解决现有轴承座需操作人员反复校准旋转工作台的角度定位,不仅调整流程繁琐、耗时费的问题
[0012]1.通过升降气缸可直接驱动承载台实现倾斜角度调节,替代了 镗床加旋转工作台需人工反复校准角度的繁琐操作,角度调整更便捷,同时借助支撑辊与旋转电机的配合,可直接带动圆柱形轴承座同步旋转,无需拆卸重新定位即可完成同一圆周上多个斜孔的加工,大幅减少耗时费力问题。
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Figure CN224896429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a bearing housing drilling fixture. Background Technology
[0002] As a core component of shaft support in various mechanical equipment, bearing housings are among the most widely used types of bearing housings in the industrial field due to their advantages such as simple structure, convenient manufacturing, and strong adaptability. For example, flanged bearing housings are suitable for shaft support needs in different scenarios such as conveying equipment, fans and pumps, agricultural machinery, and heavy metallurgical equipment, providing core protection for the stable operation of equipment. In actual working conditions, cylindrical bearing housings often need to be machined with oblique holes to meet specific lubrication and heat dissipation, installation and positioning, or functional integration requirements. For example, in heavy-load or high-speed operation scenarios, oblique oil holes can allow lubricating oil to reach the bearing friction surface at the optimal angle, significantly improving lubrication efficiency. In scenarios where installation space is limited, oblique mounting holes can achieve flexible positioning and fixation of cylindrical bearing housings.
[0003] However, the rotating structure of cylindrical bearing housings presents numerous technical challenges for the machining of inclined holes. Currently, the industry commonly uses a boring machine in conjunction with a rotary table to machine inclined holes in cylindrical bearing housings. The inclined hole is achieved by adjusting the placement angle of the bearing housing through the rotary table. However, this machining method has significant drawbacks, requiring operators to repeatedly calibrate the angle positioning of the rotary table, which is not only cumbersome but also time-consuming and labor-intensive. Utility Model Content
[0004] The purpose of this utility model is to provide a bearing housing drilling fixture to solve the problem that existing bearing housings require operators to repeatedly calibrate the angle positioning of the rotary table, which is not only cumbersome and time-consuming.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A bearing housing drilling fixture includes a base, a sliding seat that slides left and right connected to the top of the base, a rotating support rotatably connected to the surface of the sliding seat, a bearing platform fixedly connected to the top of the rotating support, a connecting lug fixedly connected to the bottom surface of the bearing platform near the right end, a vertically arranged lifting cylinder mounted on the top surface of the base, a lifting rod fixedly connected to the output end of the lifting cylinder, the lifting rod and the connecting lug being rotatably connected, a support plate and a positioning seat fixedly mounted on the top of the bearing platform, a support roller rotatably connected between the two, a positioning groove opened on the top of the positioning seat, and a clamping assembly installed in the positioning groove.
[0007] Preferably, the top of the base is provided with a sliding groove for the sliding seat to slide left and right, the sliding seat is a T-shaped structure, and the groove of the sliding groove is set accordingly.
[0008] Preferably, the rotating support is installed on the bottom surface of the support platform near the left end.
[0009] Preferably, a rotary motor is fixedly connected to the surface of the support plate, and the output end of the rotary motor is coaxially fixedly connected to the end of the support roller.
[0010] Preferably, the clamping assembly includes a clamping cylinder and a clamping block. The clamping cylinder is fixedly connected to the surface of the positioning seat. The telescopic end of the clamping cylinder moves through the surface of the positioning seat and extends into the positioning groove. The end of the telescopic end is fixedly connected to the clamping block.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. The tilt angle can be adjusted by directly driving the bearing table through the lifting cylinder, which replaces the tedious operation of repeatedly calibrating the angle manually on the boring machine with a rotary table. The angle adjustment is more convenient. At the same time, with the cooperation of the support roller and the rotary motor, the cylindrical bearing seat can be directly driven to rotate synchronously. Multiple inclined holes on the same circumference can be processed without disassembly and repositioning, which greatly reduces the time and labor costs. Attached Figure Description
[0013] Figure 1 This is a front view of the entire utility model;
[0014] Figure 2 This is a side view of the entire utility model;
[0015] Figure 3 This is a front sectional view of the base of this utility model;
[0016] Figure 4 This is a front sectional view of the positioning seat of this utility model.
[0017] In the diagram: 1. Base; 2. Sliding groove; 3. Sliding seat; 4. Rotating support; 5. Bearing platform; 6. Connecting ear seat; 7. Lifting rod; 8. Lifting cylinder; 9. Support plate; 10. Rotary motor; 11. Support roller; 12. Positioning seat; 13. Positioning groove; 14. Clamping block; 15. Clamping cylinder. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1 to 4 This utility model provides a technical solution.
[0020] The bearing housing drilling fixture includes a base 1, with a sliding seat 3 that slides left and right connected to the top of the base 1. The top of the base 1 is provided with a sliding groove 2 for the sliding seat 3 to slide left and right. The sliding seat 3 has a T-shaped structure, and the groove of the sliding groove 2 is correspondingly set. To reduce sliding resistance, the contact surface between the sliding seat 3 and the sliding groove 2 is provided with rollers or balls. By converting sliding friction into rolling friction, the smooth movement of the sliding seat 3 is achieved. A rotating support 4 is rotatably connected to the surface of the sliding seat 3. A bearing platform 5 is fixedly connected to the top of the rotating support 4, and the rotating support 4 is installed on the bottom surface of the bearing platform 5 near the left end, forming an inclined support base point for the bearing platform 5.
[0021] A connecting lug 6 is fixedly connected to the bottom surface of the support platform 5 near the right end. A vertically set lifting cylinder 8 is installed on the top surface of the base 1. A lifting rod 7 is fixedly connected to the output end of the lifting cylinder 8. The lifting rod 7 and the connecting lug 6 are rotatably connected. By starting the lifting cylinder 8, the lifting rod 7 is driven to extend and retract up and down, which can drive the support platform 5 to rotate around the rotating support 4, thereby realizing the lifting and tilt angle adjustment of the right end of the support platform 5.
[0022] A support plate 9 and a positioning seat 12 are fixedly installed on the top of the support platform 5. A support roller 11 is rotatably connected between the two. The support roller 11 is used to support the seat of the bearing seat. A rotary motor 10 is fixedly connected to the surface of the support plate 9. The output end of the rotary motor 10 is coaxially fixedly connected to the end of the support roller 11. In order to increase the friction between the support roller 11 and the bearing seat, a friction-increasing material such as rubber can be sleeved on the surface of the support roller 11. Starting the rotary motor 10 can drive the support roller 11 to rotate, thereby driving the bearing seat placed on it to rotate synchronously, which is convenient for processing different holes on the same circumference.
[0023] The top of the positioning seat 12 is provided with a positioning groove 13, which is used to fit the protruding part of the bearing seat, such as the flange edge of the flange bearing seat, to achieve the initial positioning of the bearing seat. A clamping cylinder 15 is fixedly connected to the surface of the positioning seat 12. The telescopic end of the clamping cylinder 15 moves through the surface of the positioning seat 12 and extends into the positioning groove 13. A clamping block 14 is fixedly connected to the end of the telescopic end. When the protruding part of the bearing seat is embedded in the positioning groove 13, the clamping cylinder 15 is activated to push the clamping block 14 to squeeze the protruding part of the bearing seat, thus completing the firm fixation of the bearing seat and allowing drilling operations to be carried out. If the drilling position needs to be adjusted, simply control the clamping cylinder 15 to retract and release the clamping block 14.
[0024] The tilt angle can be adjusted by driving the bearing platform 5 with the lifting cylinder 8. Combined with the function of the support roller 11 to drive the bearing seat to rotate, the bearing seat tilt direction hole position and multiple inclined holes on the same circumference can be processed on the drilling machine, which effectively improves the flexibility and accuracy of bearing seat drilling.
[0025] Specifically, the solution is as follows: Based on the cylindrical bearing housing to be processed, the cylindrical housing body is placed stably on the support roller 11 of the bearing platform 5 to ensure that the housing body of the bearing housing is in close contact with the support roller 11. At the same time, the position of the bearing housing is adjusted so that the protruding part of the solid is accurately embedded in the positioning groove 13 on the top of the positioning seat 12, thus completing the initial positioning of the bearing housing.
[0026] Start the clamping cylinder 15 on the positioning seat 12, control its extension end to extend, and drive the clamping block 14 to move into the positioning groove 13 until the clamping block 14 tightly presses the protruding part of the bearing seat. At this time, it is necessary to confirm that the bearing seat is fixed firmly and there is no shaking, so as to avoid displacement during the processing and affect the drilling accuracy.
[0027] Tilting angle adjustment: If it is necessary to process the inclined hole, start the lifting cylinder 8 on the base 1. The lifting rod 7 at its output end will extend and retract, driving the bearing platform 5 to rotate around the rotating support 4. Adjust the extension and retraction of the lifting cylinder 8 according to the preset inclined hole angle until the bearing seat reaches the required tilting processing angle. After the adjustment is completed, turn off the lifting cylinder 8 and maintain the current state.
[0028] Circumferential hole position adjustment: If multiple oblique holes on the same circumference need to be processed, first loosen the clamping of the protruding part of the bearing seat, then start the rotary motor 10 on the support plate 9. Its output end drives the support roller 11 to rotate, which in turn drives the bearing seat placed on the support roller 11 to rotate synchronously. When the bearing seat rotates to the next preset hole position, turn off the rotary motor 10 to complete the hole position switching in the circumferential direction. After the switching is completed, clamp the protruding part of the bearing seat again.
[0029] Drilling: After confirming that all adjustments are in place and the bearing housing is securely fixed, start the drilling machine to perform drilling operations. During the process, observe the condition of the fixture and bearing housing to avoid abnormal vibration or displacement.
[0030] Disassembly and cleaning after machining: After all holes are machined, turn off the drilling machine, start the clamping cylinder 15, control its extension end to retract, drive the clamping block 14 back, and release the clamp on the bearing seat; then reset the sliding seat 3, start the lifting cylinder 8 to restore the bearing platform 5 to a horizontal state; finally, take out the machined bearing seat, clean the iron filings and debris on the surface of the fixture, check whether each part is intact, and prepare for the next operation.
[0031] During operation, it is necessary to strictly follow the operating specifications of pneumatic components and motors to avoid equipment damage or processing errors caused by misoperation; when adjusting the angle and position, it is recommended to use tools such as angle gauges and tape measures for precise calibration.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bearing housing drilling fixture, comprising a base (1), characterized in that: The top of the base (1) is connected to a sliding seat (3) that can slide left and right. A rotating support (4) is rotatably connected to the surface of the sliding seat (3). A bearing platform (5) is fixedly connected to the top of the rotating support (4). A connecting ear (6) is fixedly connected to the bottom surface of the bearing platform (5) near the right end. A vertically arranged lifting cylinder (8) is installed on the top surface of the base (1). A lifting rod (7) is fixedly connected to the output end of the lifting cylinder (8). The lifting rod (7) and the connecting ear (6) are rotatably connected. A support plate (9) and a positioning seat (12) are fixedly installed on the top of the bearing platform (5). A support roller (11) is rotatably connected between the two. A positioning groove (13) is opened on the top of the positioning seat (12). A clamping component is installed in the positioning groove (13).
2. The bearing housing drilling fixture according to claim 1, characterized in that, The top of the base (1) is provided with a sliding groove (2) for the sliding seat (3) to slide left and right. The sliding seat (3) has a T-shaped structure and the groove of the sliding groove (2) is set accordingly.
3. The bearing housing drilling fixture according to claim 1, characterized in that, The rotating support (4) is installed on the bottom surface of the bearing platform (5) near the left end.
4. The bearing housing drilling fixture according to claim 1, characterized in that, A rotary motor (10) is fixedly connected to the surface of the support plate (9), and the output end of the rotary motor (10) is coaxially fixedly connected to the end of the support roller (11).
5. The bearing housing drilling fixture according to claim 1, characterized in that, The clamping assembly includes a clamping cylinder (15) and a clamping block (14). The clamping cylinder (15) is fixedly connected to the surface of the positioning seat (12). The telescopic end of the clamping cylinder (15) moves through the surface of the positioning seat (12) and extends into the positioning groove (13). The end of the telescopic end is fixedly connected to the clamping block (14).