Numerically controlled machine tool screw support device

Abstract

The utility model provides a numerical control machine tool screw rod supporting device, include: including the support assembly and the block for supporting numerical control machine tool screw rod, support assembly installs in numerical control machine tool both sides respectively, support assembly includes wire rail and support plate, wire rail passes through screw and installs wire rail one end of numerical control machine tool surface, wire rail one end sliding installation has the sliding block, and the block is located the sliding block upper end. Through the sliding block and wire rail in support assembly constitute movable support seat, can according to the length of screw rod and actual work demand flexible adjustment position, through the design of pull rod, support plate, tow chain mounting plate constitutes fixed support seat, through the pre -tightening force of pull rod offset screw rod when operating lateral force, prevent the support structure loose.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a CNC machine tool lead screw support device. Background Technology

[0002] During the operation of CNC machine tools, the lead screw, as the core transmission component, undertakes the crucial task of accurately converting rotary motion into linear motion, and its performance directly affects the machining accuracy and stability of the machine tool.

[0003] For example, the national authorized patent announcement number CN207289581U discloses a CNC machine tool lead screw support device, including an electromagnet switch. The electromagnet switch is installed in front of the base. A left bracket is provided on the upper left side of the base. A left sealing end cover is provided in front of the left shaft hole. A sealing nut is provided in front of the left sealing end cover. A right shaft hole is provided inside the right bracket. The electromagnet and the electromagnet switch are electrically connected. An electromagnet is installed below the CNC machine tool lead screw support device. In this way, when it is necessary to install the CNC machine tool lead screw support device in the required position, it is only necessary to place the CNC machine tool lead screw support device in the required position and then turn on the electromagnet switch. This allows the electromagnet to fix the CNC machine tool lead screw support device in the required position, making the installation of the CNC machine tool lead screw support device more convenient and improving the practical performance of the CNC machine tool lead screw support device.

[0004] However, the aforementioned lead screw support device is prone to bending deformation due to its own weight and the load it bears during operation. In some large CNC machine tools, the lead screw is quite long. Under high-speed operation and heavy load, the middle area is very prone to sagging, which will cause a significant decrease in the transmission accuracy of the lead screw, resulting in the dimensional deviation of the machined parts exceeding the allowable range. It will also accelerate the wear of the lead screw and shorten its service life. Utility Model Content

[0005] The present invention aims to solve the problems mentioned in the background art by providing a CNC machine tool lead screw support device.

[0006] The specific technical solution is as follows:

[0007] A CNC machine tool lead screw support device includes: a support assembly and a support block for supporting the CNC machine tool lead screw. The support assembly is respectively installed on both sides of the CNC machine tool. The support assembly includes a linear guide and a support plate. The linear guide is installed on one end of the CNC machine tool surface by screws. A slider is slidably installed on one end of the linear guide, and the support block is located on the upper end of the slider.

[0008] As a preferred embodiment of this utility model, a support plate is connected to the upper surface of the slider, a support block is installed on the upper surface of the support plate, a pull rod is connected to one side of the support plate, and the two ends of the pull rod are provided with reverse threads, which are screwed into the threaded holes connecting the support plate and the drag chain mounting plate respectively. The drag chain mounting plate is also fixed to the side of the CNC machine tool by screws, and is provided with a slot for fixing the steel drag chain.

[0009] As a preferred embodiment of this utility model, the center of the support block is provided with a groove for storing lubricating oil, and the mounting holes on the surface of the support block can be fixed to one end of the support plate by screws.

[0010] As a preferred embodiment of this utility model, polyurethane cushioning pads are bonded to both sides of the support block.

[0011] As a preferred embodiment of this utility model, a lubrication pipe connector is installed at one end of the support block, and the lubrication pipe is installed to one end of the lubrication pipe connector by a steel cable chain, and the lubrication pipe connector is connected to a groove provided on the surface of the support block.

[0012] As a preferred embodiment of this utility model, one end of the machine tool is equipped with a cable chain groove by screws, one end of the steel cable chain is engaged in the groove of the cable chain mounting plate, and the other end extends into the cable chain groove, and the steel cable chain is installed in the cable chain groove.

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

[0014] 1. The CNC machine tool lead screw support device provided by this utility model consists of a movable support seat formed by a slider and linear guide in the support assembly. The position can be flexibly adjusted according to the length of the lead screw and actual working requirements. A fixed support seat is formed by the design of a tie rod, support plate, and drag chain mounting plate. The preload of the tie rod counteracts the lateral force of the lead screw during operation, preventing the support structure from loosening. The design of the fixed support seat and the movable support seat can effectively reduce the deflection and vibration of the lead screw during operation, significantly improve the transmission accuracy of the lead screw, effectively improve the positioning accuracy of the machine tool, and improve the dimensional accuracy of the parts processed later, thus meeting the requirements of high-precision machining. This solves the problems of easy deformation, large vibration, and difficult installation and maintenance of lead screws.

[0015] 2. The CNC machine tool lead screw support device provided by this utility model, through the design of a support block, a polyurethane buffer pad, a lubrication pipe connector, and a steel cable chain, has the support block fixed to the upper surface of the support plate by screws. The groove in the center of the support block is used to store lubricating oil. The lubrication pipe connector is threaded to the side of the support block, and the lubrication pipe is installed at one end of the lubrication pipe connector through a steel cable chain. This can continuously lubricate the contact surface between the lead screw and the nut, reducing frictional loss. At the same time, the support block directly supports the lead screw, dispersing local stress. The polyurethane buffer pads bonded to both ends of the support block can effectively absorb and consume the vibration and impact energy generated during the operation of the lead screw, reducing wear between the lead screw and other components, thereby extending the service life of the lead screw and effectively reducing equipment maintenance costs and downtime. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a CNC machine tool lead screw support device according to an embodiment of the present invention;

[0017] Figure 2 A schematic side view of the CNC machine tool lead screw support device provided in this embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the drag chain mounting plate structure of the CNC machine tool lead screw support device provided in this embodiment of the utility model.

[0019] In the attached image:

[0020] 1. Support block;

[0021] 2. Support components; 201. Linear guide rail; 202. Slider; 203. Tie rod; 204. Support plate; 205. Cable chain mounting plate;

[0022] 3. Polyurethane cushioning pad;

[0023] 41. Steel cable chain; 42. Cable chain groove; 43. Lubrication pipe connector. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] The CNC machine tool lead screw support device provided in this embodiment, such as Figures 1-3 As shown, the system includes a support assembly 2 for supporting the lead screw of a CNC machine tool and a support block 1. The support assembly 2 is installed on both sides of the CNC machine tool. The support assembly 2 includes a linear guide 201 and a support plate 204. The linear guide 201 is installed on one end of the surface of the CNC machine tool by screws. A slider 202 is slidably installed on one end of the linear guide 201. The support block 1 is located on the upper end of the slider 202. The support plate 204 is connected to the upper surface of the slider 202. The support block 1 is installed on the upper surface of the support plate 204. A pull rod 203 is connected to one side of the support plate 204. The pull rod 203 has reverse threads at both ends, which are screwed into the threaded holes connecting the support plate 204 and the cable chain mounting plate 205, respectively. The cable chain mounting plate 205 is also fixed to the side of the CNC machine tool by screws and has a slot for fixing a steel cable chain 41.

[0030] The movable support base, composed of slider 202 and linear guide 201 in support assembly 2, can be flexibly adjusted according to the length of the lead screw and actual working requirements. The fixed support base, composed of tie rod 203, support plate 204, and drag chain mounting plate 205, is formed by the design of tie rod 203. The preload of tie rod 203 counteracts the lateral force of the lead screw during operation, preventing the support structure from loosening. The design of the fixed and movable support bases effectively reduces the deflection and vibration of the lead screw during operation, significantly improves the transmission accuracy of the lead screw, effectively improves the positioning accuracy of the machine tool, and improves the dimensional accuracy of the parts processed later, meeting the requirements of high-precision machining. This solves the problems of easy deformation, large vibration, and difficult installation and maintenance of the lead screw.

[0031] Example 2

[0032] The CNC machine tool lead screw support device provided in this embodiment, such as Figures 1-3 As shown, the machine tool includes: a support block 1 with a groove in the center for storing lubricating oil, and mounting holes on the surface of the support block 1 for fixing to one end of the support plate 204 with screws. Polyurethane buffer pads 3 are bonded to both sides of the support block 1. A lubrication pipe connector 43 is installed at one end of the support block 1, and the lubrication pipe is installed to one end of the lubrication pipe connector 43 via a steel cable chain 41, with the lubrication pipe connector 43 communicating with the groove on the surface of the support block 1. A cable chain groove 42 is installed at one end of the machine tool with screws, one end of the steel cable chain 41 is engaged in a slot in the cable chain mounting plate 205, and the other end extends into the cable chain groove 42, where the steel cable chain 41 is installed.

[0033] Through the design of the support block 1, polyurethane buffer pad 3, lubrication pipe connector 43, and steel cable chain 41, the support block 1 is fixed to the upper surface of the support plate 204 with screws. The groove in the center of the support block 1 is used to store lubricating oil. The lubrication pipe connector 43 is threaded to the side of the support block 1. The lubrication pipe is installed at one end of the lubrication pipe connector 43 through the steel cable chain 41. This can continuously lubricate the contact surface between the lead screw and the nut, reducing friction loss. At the same time, the support block 1 directly supports the lead screw and disperses local stress. The polyurethane buffer pad 3 bonded to both ends of the support block 1 can effectively absorb and consume the vibration and impact energy generated during the operation of the lead screw, reduce the wear between the lead screw and various components, thereby extending the service life of the lead screw and effectively reducing the maintenance cost and downtime of the equipment.

[0034] In summary, the CNC machine tool lead screw support device provided in this embodiment has the following advantages: the fixed support seat and the movable support seat in the structure can effectively support the lead screw, effectively reduce the deflection and vibration of the lead screw during operation, significantly improve the transmission accuracy of the lead screw, avoid the machining accuracy from exceeding the deviation, and extend the service life of the lead screw.

[0035] In use, when the CNC machine tool is running, the rotational power output by the motor is transmitted to the lead screw through the coupling. The lead screw rotates at high speed under the support of the fixed support seat and the movable support seat. The support block 1 supports the lead screw and contains lubricating fluid to lubricate the lead screw and ensure stable rotation. The polyurethane buffer pad 3 can effectively absorb the vibration and impact energy generated during the operation of the lead screw, reduce the impact of vibration on the lead screw and the machine tool, and ensure that the lead screw can operate in a high-precision, low-vibration environment. It does not require frequent maintenance; only periodic maintenance is needed for the support device to be used for a long time.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lead screw support device for a CNC machine tool, characterized in that, The system includes a support assembly (2) and a support block (1) for supporting the lead screw of a CNC machine tool. The support assembly (2) is installed on both sides of the CNC machine tool. The support assembly (2) includes a linear guide (201) and a support plate (204). The linear guide (201) is installed on one end of the surface of the CNC machine tool by screws. A slider (202) is slidably installed on one end of the linear guide (201). The support block (1) is located on the upper end of the slider (202).

2. The CNC machine tool lead screw support device according to claim 1, characterized in that, The upper surface of the slider (202) is connected to a support plate (204), and a support block (1) is installed on the upper surface of the support plate (204). A pull rod (203) is connected to one side of the support plate (204). The two ends of the pull rod (203) are provided with reverse threads, which are screwed into the threaded holes connecting the support plate (204) and the drag chain mounting plate (205). The drag chain mounting plate (205) is also fixed to the side of the CNC machine tool by screws, and is provided with a slot for fixing the steel drag chain (41).

3. The CNC machine tool lead screw support device according to claim 2, characterized in that, The center of the support block (1) is provided with a groove for storing lubricating oil, and the mounting holes on the surface of the support block (1) can be fixed to one end of the support plate (204) by screws.

4. The CNC machine tool lead screw support device according to claim 3, characterized in that, Polyurethane buffer pads (3) are bonded to both sides of the support block (1).

5. The CNC machine tool lead screw support device according to claim 3, characterized in that, A lubrication pipe connector (43) is installed at one end of the support block (1). The lubrication pipe is installed to one end of the lubrication pipe connector (43) via a steel drag chain (41), and the lubrication pipe connector (43) is connected to a groove provided on the surface of the support block (1).

6. The CNC machine tool lead screw support device according to claim 5, characterized in that, One end of the machine tool is fitted with a cable chain groove (42) by screws. One end of the steel cable chain (41) is engaged in the groove of the cable chain mounting plate (205), and the other end extends into the cable chain groove (42). The steel cable chain (41) is installed in the cable chain groove (42).

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