Adjustable bearing block for numerical control machine tool

Abstract

The utility model provides a kind of adjustable bearing seat for numerical control machine tool, including main plate, track, vice plate, the front of the main plate is fixedly connected with several tracks, the outer surface of the track is movably connected with vice plate, the front of the vice plate is fixedly connected with bearing seat by connecting piece, the connecting piece is threadedly connected with vice plate, the connecting piece is inserted with bearing seat, several guide slots are opened on the vice plate, and the surface of the vice plate is fastened with fastener.The utility model has the advantages that: through the cooperation of track, vice plate, connecting piece, guide slot, fastener, gasket, side ear, bolt, high-precision continuous adjustment can be realized: through bolt-track linkage, stepless fine adjustment is realized, and the precision is better than traditional structure;Bearing seat horizontal position is accurately adjustable, effectively ensures processing efficiency;Modular design: bearing seat and vice plate can be quickly disassembled and assembled, and are suitable for different models of bearings (such as angular contact ball bearing, tapered roller bearing).

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to an adjustable bearing housing for CNC machine tools. Background Technology

[0002] The bearing housing of a CNC machine tool is a mechanical part used to support and fix the bearing, and plays a vital role in the machine tool.

[0003] Traditional CNC machine tool bearing housings are mostly fixed structures, and their position cannot be adjusted after installation. If the bearing position shifts due to machining errors or long-term wear, the entire bearing needs to be disassembled and repositioned, which is time-consuming and affects machining efficiency.

[0004] This device achieves stepless precision adjustment of the bearing seat through a track-sub-plate linkage mechanism, combined with bolt drive and guide groove limiting, while taking into account both structural rigidity and ease of operation. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide an adjustable bearing housing for CNC machine tools to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, one embodiment of the present invention provides an adjustable bearing housing for CNC machine tools, including a main board, rails, and a sub-board. Several rails are fixedly connected to the front of the main board, and the sub-boards are movably connected to the outer surfaces of the rails.

[0008] The front side of the sub-plate is fixedly connected to a bearing seat via a connector. The connector is threadedly connected to the sub-plate and inserted into the bearing seat.

[0009] The sub-plate is provided with a plurality of guide grooves, and fasteners are fixedly fastened to the surface of the sub-plate. The fasteners are movably connected to the guide grooves and are threadedly connected to the main plate.

[0010] The fastener is sandwiched between a gasket and the surface of the sub-plate;

[0011] Both the main board end and the sub-board end are fixedly connected to side lugs. Bolts are threaded onto the side lugs of the main board, and the ends of the bolts are movably connected to the side lugs of the sub-board end.

[0012] Preferably, the main board and the sub-board are made of cast iron, and the track is I-shaped.

[0013] Using the above technical solution: This device is specifically designed for CNC machine tools, and the horizontal position of the bearing seat can be finely adjusted.

[0014] Fine-tuning method: Rotate the bolts in both directions, and the sub-plate moves back and forth along the track. The sub-plate is movably connected to the surface of the main plate.

[0015] The bearing housing is installed on the sub-plate via a connector. After the sub-plate and bearing housing are in place, fasteners are installed to secure the sub-plate and bearing housing in place.

[0016] Preferably, of any of the above schemes, at least two tracks are arranged in parallel, and the front and rear positions of the sub-plate can be finely adjusted.

[0017] This device:

[0018] Structural composition and connection relationships

[0019] Basic framework

[0020] Mainboard: Made of cast iron, with two parallel I-beam rails fixed on the front. The rail cross-section design enhances bending stiffness and prevents deformation.

[0021] Sub-plate: Threaded holes are formed on the surface for mounting connectors and fasteners;

[0022] Side ears: welded to the ends of the main board and sub-board, forming a linkage adjustment mechanism through bolts.

[0023] Adjustment and fixing components

[0024] Bolts: As the core adjusting component, they drive the sub-plate to move back and forth along the track by rotating in both directions, with a moving accuracy of ±0.05mm;

[0025] Guide groove and fastener: The guide groove is a long strip-shaped through hole. The fastener passes through the guide groove and is threaded to the main board. It works with a notched washer to achieve pre-tightening and anti-loosening of the sub-board.

[0026] Bearing housing: Installed to the sub-plate via connectors to ensure quick assembly / disassembly and angular positioning.

[0027] Preferably, in any of the above solutions, the connector or fastener is a hexagonal bolt, and the washer has a notch.

[0028] Working principle

[0029] Fine-tuning process:

[0030] Coarse adjustment: Loosen the fasteners and rotate the bolt forward → the sub-plate moves forward along the track → the horizontal position of the bearing seat changes;

[0031] Precise positioning: The bearing housing position is monitored by a dial indicator, and adjustments are made in the ±0.01mm increments by micro-rotating the bolts;

[0032] Locking and securing: Tighten the fasteners, and the notch design of the washer prevents the bolts from coming back, ensuring a rigid fixation.

[0033] Vibration-resistant design:

[0034] The I-shaped track and the cast iron sub-plate form a rigid sliding pair, reducing displacement deviation caused by vibration;

[0035] The dual-track parallel layout enhances stability and is suitable for high-dynamic load scenarios such as high-speed spindles.

[0036] High-precision continuous adjustment: Stepless fine adjustment is achieved through bolt-track linkage, with precision superior to traditional structures;

[0037] Modular design: The bearing housing and sub-plate can be quickly disassembled and assembled to accommodate different types of bearings (such as angular contact ball bearings and tapered roller bearings);

[0038] Low cost and easy maintenance: Adjustment can be completed with just a standard hex wrench, without the need for special tools or complex control systems;

[0039] Rigidity-Lightweight Balance: Cast iron provides high rigidity, while the I-beam track reduces weight by 30%, making it suitable for compact spaces in precision machine tools.

[0040] Preferably, in any of the above solutions, the motherboard is soldered to the side lugs, and the sub-board is soldered to the side lugs.

[0041] Preferably, in any of the above solutions, the bolt serves as an adjusting element for the bearing housing.

[0042] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0043] This CNC machine tool uses an adjustable bearing housing, which, through the coordinated arrangement of rails, sub-plates, connectors, guide grooves, fasteners, shims, side ears, and bolts, can achieve high-precision continuous adjustment: stepless fine adjustment is achieved through bolt-rail linkage, with accuracy superior to traditional structures; the horizontal position of the bearing housing is precisely adjustable, effectively ensuring processing efficiency;

[0044] Modular design: The bearing housing and sub-plate can be quickly disassembled and assembled to accommodate different types of bearings (such as angular contact ball bearings and tapered roller bearings);

[0045] Low cost and easy maintenance: Adjustment can be completed with just a standard hex wrench, without the need for special tools or complex control systems;

[0046] Rigidity-Lightweight Balance: Cast iron provides high rigidity, while the I-beam track reduces weight by 30%, making it suitable for compact spaces in precision machine tools.

[0047] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0048] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0049] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0050] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0051] Figure 3 This is a front view structural diagram of the present utility model;

[0052] Figure 4 This is a structural schematic diagram of the present invention from a third-view perspective.

[0053] In the diagram: 1-Main board, 2-Railway, 3-Sub-board, 4-Connector, 5-Bearing seat, 6-Guide groove, 7-Fastener, 8-Shim, 9-Side lug, 10-Bolt. Detailed Implementation

[0054] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0056] like Figure 1-4 As shown, the adjustable bearing housing of this CNC machine tool includes a main board 1, a track 2, and a sub-board 3. Several tracks 2 are fixedly connected to the front of the main board 1, and the sub-board 3 is movably connected to the outer surface of the track 2.

[0057] The front side of the sub-plate 3 is fixedly connected to the bearing seat 5 via the connector 4. The connector 4 is threadedly connected to the sub-plate 3 and inserted into the bearing seat 5.

[0058] The sub-plate 3 has several guide grooves 6, and fasteners 7 are fastened to the surface of the sub-plate 3. The fasteners 7 are movably connected to the guide grooves 6, and the fasteners 7 are threadedly connected to the main plate 1.

[0059] Fastener 7 and sub-plate 3 are sandwiched together with a washer 8;

[0060] Both the main board 1 and the sub-board 3 are fixedly connected to side lugs 9. Bolts 10 are threaded onto the side lugs 9 of the main board 1, and the end of the bolts 10 is movably connected to the side lugs 9 at the end of the sub-board 3.

[0061] Example 1: The main board 1 and the sub-board 3 are made of cast iron, and the track 2 is I-shaped. This device is specifically designed for CNC machine tools, and the horizontal position of the bearing seat 5 is finely adjustable.

[0062] Fine-tuning method: Rotate the bolt 10 in both directions, and the sub-plate 3 moves back and forth along the track 2. The sub-plate 3 is movably connected to the surface of the main plate 1.

[0063] The bearing housing 5 is mounted on the sub-plate 3 via the connector 4. After the sub-plate 3 and bearing housing 5 are in place, the fastener 7 is tightened, and the sub-plate 3 and bearing housing 5 are secured in place. At least two rails 2 are arranged in parallel, and the front and rear positions of the sub-plate 3 can be finely adjusted.

[0064] Example 2: This device:

[0065] Structural composition and connection relationships

[0066] Basic framework

[0067] Mainboard 1: Made of cast iron, with two parallel I-shaped rails 2 fixed on the front. The rail cross-section design enhances bending stiffness and prevents deformation.

[0068] Sub-plate 3: Threaded holes are formed on the surface for mounting connectors 4 and fasteners 7;

[0069] Side ear 9: welded to the ends of main board 1 and sub-board 3, forming a linkage adjustment mechanism through bolt 10.

[0070] Adjustment and fixing components

[0071] Bolt 10: As a core adjusting component, it drives the sub-plate 3 to move back and forth along the track 2 with forward and reverse rotation, and the movement accuracy can reach ±0.05mm;

[0072] Guide groove 6 and fastener 7: The guide groove is a long strip through hole. The fastener 7 passes through the guide groove 6 and is threaded to the main board 1. It works with the notched washer 8 to achieve pre-tightening and anti-loosening of the sub-board 3.

[0073] Bearing housing 5: Installed to sub-plate 3 via connector 4, ensuring quick assembly / disassembly and angular positioning. Connector 4 and fastener 7 are specifically hexagonal bolts, and washer 8 has a notch. Main plate 1 is welded to side lug 9, and sub-plate 3 is welded to side lug 9. Bolt 10 serves as an adjustment component for bearing housing 5.

[0074] The working principle of this utility model is as follows:

[0075] Fine-tuning process:

[0076] Coarse adjustment: Loosen fastener 7, rotate bolt 10 forward → sub-plate 3 moves forward along track 2 → bearing seat 5 changes horizontal position;

[0077] Precise positioning: The position of bearing housing 5 is monitored by a dial indicator, and the adjustment is achieved at the ±0.01mm level by micro-rotating the bolt 10;

[0078] Locking and fixing: Tighten fastener 7, the notch design of washer 8 prevents bolt retraction and ensures rigid fixing.

[0079] Vibration-resistant design:

[0080] The I-shaped track 2 and the cast iron sub-plate 3 form a rigid sliding pair to reduce displacement deviation caused by vibration;

[0081] The dual-track parallel layout enhances stability and is suitable for high-dynamic load scenarios such as high-speed spindles.

[0082] Compared with the prior art, the present invention has the following advantages:

[0083] This CNC machine tool uses an adjustable bearing housing, which is set up with track 2, sub-plate 3, connector 4, guide groove 6, fastener 7, shim 8, side lug 9, and bolt 10 to achieve high-precision continuous adjustment: stepless fine adjustment is achieved through the linkage of bolt 10 and track 2, and the accuracy is better than that of traditional structures; the horizontal position of bearing housing 5 is precisely adjustable, which effectively ensures processing efficiency.

[0084] Modular design: The bearing housing 5 and the sub-plate 3 can be quickly disassembled and assembled to accommodate different types of bearings (such as angular contact ball bearings and tapered roller bearings);

[0085] Low cost and easy maintenance: Adjustment can be completed with just a standard hex wrench, without the need for special tools or complex control systems;

[0086] Rigidity-Lightweight Balance: Cast iron provides high rigidity, while the I-beam track reduces weight by 30%, making it suitable for compact spaces in precision machine tools.

Claims

1. An adjustable bearing block for a numerically controlled machine tool, characterized by, The system includes a main board (1), rails (2), and a sub-board (3). Several rails (2) are fixedly connected to the front of the main board (1), and the sub-board (3) is movably connected to the outer surface of the rails (2). A bearing seat (5) is fixedly connected to the front of the sub-board (3) through a connector (4). The connector (4) is threaded to the sub-board (3), and the connector (4) is inserted into the bearing seat (5). The sub-plate (3) has several guide grooves (6), and fasteners (7) are fastened to the surface of the sub-plate (3). The fasteners (7) are movably connected to the guide grooves (6), and the fasteners (7) are threadedly connected to the main plate (1). The fastener (7) and the surface of the sub-plate (3) are sandwiched with a gasket (8); Both the end of the main board (1) and the end of the sub-board (3) are fixedly connected with side ears (9). A bolt (10) is threaded onto the side ear (9) of the main board (1). The end of the bolt (10) is movably connected to the side ear (9) of the end of the sub-board (3).

2. An adjustable chock for a numerically controlled machine tool according to claim 1, characterized in that: The main board (1) and the sub-board (3) are made of cast iron, and the track (2) is I-shaped.

3. An adjustable chock for a numerically controlled machine tool as claimed in claim 2, characterized in that: The track (2) has at least two parallel tracks, and the front and rear positions of the sub-plate (3) can be finely adjusted.

4. The adjustable bearing housing for CNC machine tools as described in claim 3, characterized in that: The connector (4) and fastener (7) are specifically hexagonal bolts, and the washer (8) has a notch.

5. An adjustable bearing housing for CNC machine tools as described in claim 4, characterized in that: The main board (1) is welded to the side ear (9), and the sub-board (3) is welded to the side ear (9).

6. An adjustable bearing housing for CNC machine tools as described in claim 5, characterized in that: The bolt (10) serves as an adjusting element for the bearing housing (5).

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