Bearing seat machining tool
By combining the design of a rotary hydraulic cylinder and a movable pressure plate, high-precision positioning and stable clamping of the bearing housing are achieved, solving the problem of insufficient positioning of existing tooling under high-precision requirements and improving machining accuracy and efficiency.
Patent Information
- Application Number
- CN202423090626.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing bearing housing machining fixtures are difficult to achieve accurate positioning and stable clamping under high precision requirements, resulting in insufficient machining accuracy.
A bearing housing machining fixture including first and second clamping assemblies is adopted. By using the combination of first and second fixed support plates, a rotary hydraulic cylinder and a movable pressure plate, the rotary hydraulic cylinder drives the movable pressure plate to rotate and press down to achieve stable positioning and clamping of the bearing housing.
This improves the clamping stability and positioning effect of the bearing housing, ensuring high-precision machining quality while maintaining ease of use and efficiency.
Smart Images
Figure CN223643554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing housing processing technology, and specifically to a bearing housing processing tooling. Background Technology
[0002] Bearings are commonly used components in machinery, reducing friction and supporting shaft rotation. Bearing housings are used to support the bearings, ensuring their proper operation. Figure 1 The bearing housing shown requires clamping with a fixture when machining the end face groove. The current clamping method uses a positioning plate with holes to fit the bearing housing, using the holes to axially limit its position before machining one end face. This simple fixture is difficult to install when the holes are small, and cannot accurately position the bearing when the holes are slightly larger. While it can assist in machining the bearing housing, it provides a rough positioning method with low precision requirements. It is unsuitable for bearing housings requiring high machining accuracy. Utility Model Content
[0003] The purpose of this utility model is to provide a bearing housing machining fixture that improves the clamping and positioning effect of the bearing housing without affecting its ease of use.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The bearing housing machining fixture includes a base, a first clamping assembly and a second clamping assembly mounted on the base. The first clamping assembly includes a first fixed support plate, a first rotary hydraulic cylinder, and a first movable pressure plate. The first fixed support plate has a first support groove for cooperating with the outer periphery of one end of the bearing housing. One end of the first movable pressure plate is connected to the upper part of the piston rod of the first rotary hydraulic cylinder. The first movable pressure plate has a first pressure groove for pressing the outer periphery of one end of the bearing housing. The second clamping assembly has the same structure as the first clamping assembly and is used to clamp the other end of the bearing housing.
[0006] Furthermore, the second clamping assembly includes a second fixed support plate, a second corner hydraulic cylinder, and a second movable pressure plate. The second fixed support plate is arranged parallel to the first fixed support plate, and the first movable pressure plate and the second movable pressure plate rotate in opposite directions when rotating.
[0007] Furthermore, the first clamping assembly includes a first fixed hydraulic cylinder, and the first fixed hydraulic cylinder and the first rotating hydraulic cylinder are respectively located on both sides of the length direction of the first fixed support plate; when the first movable pressure plate rotates with the first rotating hydraulic cylinder, the other end of the first movable pressure plate can cooperate with the piston rod of the first fixed hydraulic cylinder.
[0008] Furthermore, the other end of the first movable pressure plate is provided with a first U-shaped groove for engaging with the piston rod.
[0009] Furthermore, the first movable pressure plate is a C-shaped plate with the opening facing downwards, and each end has an ear, one of which is used to connect with the first corner hydraulic cylinder, and the other ear is provided with the first U-shaped slot.
[0010] Furthermore, both the first movable pressure plate and the second movable pressure plate are C-shaped plates with their openings facing downwards, and each end has an ear.
[0011] The beneficial effects of this utility model are:
[0012] In use, the bearing housing to be processed is placed on the support grooves of the first and second fixed support plates for initial positioning. Then, the first and second rotary hydraulic cylinders are activated, and the first and second movable pressure plates rotate towards the piston rod of the fixed hydraulic cylinder, engaging with the piston rod until the fixed hydraulic cylinder presses down. The first and second rotary hydraulic cylinders press down, while the first and second fixed hydraulic cylinders also begin their descent. Once the rotary and fixed hydraulic cylinders are in position, the movable pressure plate presses the bearing housing firmly. After pressing, the end of the bearing housing can be processed. After processing, the fixed hydraulic cylinder rises first, ceasing to press the movable pressure plate. Then, the first and second rotary hydraulic cylinders are activated, and the first and second movable pressure plates rotate in opposite directions to remove the bearing housing. This fixture has a simple structure, is easy to use, and provides a more secure clamping solution. It improves clamping stability without reducing clamping efficiency, thus facilitating subsequent processing. Attached Figure Description
[0013] Figure 1 This is a structural view of the bearing housing to be clamped;
[0014] Figure 2 This is the front view of the bearing housing machining fixture of this utility model;
[0015] Figure 3 This is a top view of the bearing housing machining fixture of this utility model;
[0016] Figure 4 This is a side view of the bearing housing machining fixture of this utility model.
[0017] 1. Base; 11. First angle hydraulic cylinder; 12. First movable pressure plate; 121. First U-shaped slot; 13. First fixed support plate; 131. First support groove; 14. First fixed hydraulic cylinder; 141. Piston rod; 21. Second angle hydraulic cylinder; 22. Second movable pressure plate; 221. Second U-shaped slot; 23. Second fixed support plate; 24. Second fixed hydraulic cylinder; 3. Bearing seat. 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 skilled in the art are within the protection scope of the present utility model.
[0019] Embodiments of this utility model:
[0020] like Figures 2-4 As shown, the bearing housing machining fixture includes a base 1, a first clamping assembly and a second clamping assembly mounted on the base 1. The second clamping assembly has the same components as the first clamping assembly. The first clamping assembly and the second clamping assembly operate synchronously and are used to clamp the two ends of the bearing sleeve.
[0021] The first clamping assembly includes a first fixed support plate 13, a first corner hydraulic cylinder 11, and a first movable pressure plate 12. The first fixed support plate 13 is provided with a first support groove 131, which is an arc-shaped groove with an upward opening, for supporting and cooperating with the outer periphery of one end of the bearing seat 3. One end of the first movable pressure plate 12 is connected to the upper part of the piston rod 141 of the first corner hydraulic cylinder 11. The first movable pressure plate 12 has a first pressing groove, which is an arc-shaped groove, for pressing the outer periphery of one end of the bearing seat 3.
[0022] The first clamping assembly also includes a first fixed hydraulic cylinder 14. In this embodiment, it is called a fixed hydraulic cylinder only for the purpose of distinguishing names. A fixed hydraulic cylinder is a conventional hydraulic cylinder that performs linear lifting and lowering movements. The first fixed hydraulic cylinder 14 and the first angle hydraulic cylinder 11 are located on opposite sides of the length of the first fixed support plate 13. When the first movable pressure plate 12 rotates with the first angle hydraulic cylinder 11, the other end of the first movable pressure plate 12 can cooperate with the piston rod 141 of the first fixed hydraulic cylinder 14.
[0023] The first movable pressure plate 12 is a C-shaped plate with its opening facing downwards. Each end has an ear, one of which connects to the first angle hydraulic cylinder 11 and rotates with it. The other ear has a first U-shaped groove 121 for engaging with the piston rod 141 of the first fixed hydraulic cylinder 14. When the first movable pressure plate 12 rotates with the first angle hydraulic cylinder 11, the first U-shaped groove 121 of the first movable pressure plate 12 engages with the piston rod 141 of the first fixed hydraulic cylinder 14. After engagement, the piston rod 141 of the first fixed hydraulic cylinder 14 moves downwards, pressing down on the end containing the first U-shaped groove 121.
[0024] The second clamping assembly is used to clamp the other end of the bearing housing 3. The second clamping assembly includes a second fixed support plate 23, a second rotary hydraulic cylinder 21, and a second movable pressure plate 22. The second fixed support plate 23 is arranged parallel to the first fixed support plate 13. To avoid interference, the first movable pressure plate 12 and the second movable pressure plate 22 rotate in opposite directions. One end of the second movable pressure plate 22 is provided with a second U-shaped groove 221. The second clamping assembly also includes a second fixed hydraulic cylinder 24. The structure and working principle of the second clamping assembly are the same as those of the first clamping assembly, and therefore will not be described in detail; the main difference is that the size of the support groove of the second support plate is smaller than that of the support groove of the first support plate because the outer diameters of the two supported points of the bearing housing 3 are different.
[0025] The working principle of this new bearing housing machining fixture:
[0026] The bearing housing 3 to be processed is placed on the first support groove 131 and the second support groove 231 of the first fixed support plate 13 and the second fixed support plate 23, respectively, with the center of the bearing housing 3 horizontal. Additionally, the bearing housing 3 is initially positioned axially by the shoulder on its outer periphery against the sidewalls of the first fixed support plate 13 and the second fixed support plate 23. The first rotary hydraulic cylinder 11 and the second rotary hydraulic cylinder 21 are activated, the first movable pressure plate 12 rotates 90 degrees counterclockwise, and the second movable pressure plate 22 rotates 90 degrees clockwise. The U-shaped slots of the first and second movable pressure plates engage with the piston rods of the corresponding fixed hydraulic cylinders. Then, the first rotary hydraulic cylinder 11 and the second rotary hydraulic cylinder 21 press down, while the first and second fixed hydraulic cylinders also descend. Once the rotary and fixed hydraulic cylinders are in position, the movable pressure plates press the bearing housing 3 firmly. After pressing, the end of the bearing housing 3 can be milled with grooves and holes. After processing, the fixed hydraulic cylinder rises first, no longer pressing the movable pressure plate. Then, the first angular hydraulic cylinder 11 and the second angular hydraulic cylinder 21 are activated, the first movable pressure plate 12 rotates 90 degrees clockwise, and the second movable pressure plate 22 rotates 90 degrees counterclockwise. At this time, the bearing seat 3 can be removed. This fixture is convenient to use and provides a more secure clamping.
[0027] In other embodiments, for certain sizes and models of bearing housings, if the clamping requirements can be met by using only a rotary hydraulic cylinder to drive the movable pressure plate, then a fixed hydraulic cylinder may not be used.
Claims
1. A tooling fixture for machining bearing housings, characterized in that: The device includes a base, a first clamping assembly mounted on the base, and a second clamping assembly. The first clamping assembly includes a first fixed support plate, a first rotary hydraulic cylinder, and a first movable pressure plate. The first fixed support plate has a first support groove for supporting and engaging with the outer periphery of one end of the bearing housing. One end of the first movable pressure plate is connected to the upper part of the piston rod of the first rotary hydraulic cylinder, and the first movable pressure plate has a first pressure groove for pressing the outer periphery of one end of the bearing housing. The second clamping assembly has the same structure as the first clamping assembly and is used to clamp the other end of the bearing housing.
2. The bearing housing machining fixture according to claim 1, characterized in that: The second clamping assembly includes a second fixed support plate, a second corner hydraulic cylinder, and a second movable pressure plate. The second fixed support plate is arranged parallel to the first fixed support plate, and the first movable pressure plate and the second movable pressure plate rotate in opposite directions when rotating.
3. The bearing housing machining fixture according to claim 1, characterized in that: The first clamping assembly includes a first fixed hydraulic cylinder, and the first fixed hydraulic cylinder and the first rotating hydraulic cylinder are respectively located on both sides of the length direction of the first fixed support plate; when the first movable pressure plate rotates with the first rotating hydraulic cylinder, the other end of the first movable pressure plate can cooperate with the piston rod of the first fixed hydraulic cylinder.
4. The bearing housing machining fixture according to claim 3, characterized in that: The other end of the first movable pressure plate is provided with a U-shaped groove for engaging with the piston rod.
5. The bearing housing machining fixture according to claim 4, characterized in that: The first movable pressure plate is a C-shaped plate with the opening facing downwards, and each end has an ear. One ear is used to connect with the first corner hydraulic cylinder, and the other ear is provided with the U-shaped groove.
6. The bearing housing machining fixture according to claim 2, characterized in that: Both the first movable pressure plate and the second movable pressure plate are C-shaped plates with their openings facing downwards, and each end has an ear.