Damping slide block for numerical control machine tool

Abstract

The utility model discloses a damping slider for numerical control machine tool, including main shaft box and setting two Z axle guide rails of main shaft box positive face, two Z axle guide rails all have the slider one, slider two and damping slider of slidingly arranged, and the damping slider is between the slider one and slider two, be equipped with the oil inlet structure on the damping slider, a kind of damping slider for numerical control machine tool provided in the application, the structure of linear guide rail system is innovatively improved, each sets up three pairs of sliders on two Z axle guide rails, and the slider in middle is designed as damping slider, while setting oil hole in the middle position of damping slider front, so that oil can reach damping surface by oil hole, oil film damping vibration is formed between damping slider and guide rail, this unique structure design can effectively reduce the vibration of linear guide rail system, significantly reduce the adverse effect of vibration on machine tool processing quality, make the surface of processing workpiece more smooth, size precision higher, greatly improve the qualified rate of product.

Description

Technical Field

[0001] This utility model belongs to the field of linear guide technology for CNC machine tools, specifically relating to a damping slider for CNC machine tools. Background Technology

[0002] In modern manufacturing, CNC machine tools are core processing equipment. Their processing accuracy and stability directly determine the quality of products and production efficiency. As a key moving component of CNC machine tools, linear guides undertake the guiding and supporting functions of important components such as the spindle box, and play a vital role in the motion accuracy and dynamic performance of machine tools.

[0003] With the increasing demands for machining accuracy and production efficiency in the manufacturing industry, CNC machine tools are developing towards high speed and high precision. However, when the machine tool is in high-speed motion, due to the inertial force of the moving parts, cutting force, and external interference, the linear guide rail will generate significant vibration. This vibration will not only be directly reflected on the surface of the workpiece, leading to increased surface roughness and reduced dimensional accuracy, seriously affecting machining quality and making it difficult for products to meet high-precision design requirements, increasing scrap rate and production costs; but also accelerate tool wear, shorten tool life, increase tool replacement frequency and cost. Frequent tool replacement will also affect the continuity of machining and production efficiency. Therefore, this utility model proposes a damping slider for CNC machine tools. Utility Model Content

[0004] The purpose of this invention is to provide a damping slider for CNC machine tools to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a damping slider for CNC machine tools, comprising... The spindle housing and two Z-axis guide rails are set on the front of the spindle housing. Slider 1, slider 2 and damping slider are slidably set on the two Z-axis guide rails, and the damping slider is located between slider 1 and slider 2. The damping slider is equipped with an oil inlet structure.

[0006] Preferably, the back of the damping slider is provided with a guide groove that is adapted to the Z-axis guide rail.

[0007] Preferably, the oil inlet structure includes a rectangular groove on the front of the damping slider, two circular grooves in the rectangular groove, and an oil inlet hole in the inner side of the circular grooves and communicating with the guide groove.

[0008] Preferably, a sealing cap is provided on one side of each circular groove within the rectangular groove.

[0009] Preferably, the sealing cap includes a circular cover gasket, a side gasket, and a shaft block. The shaft block is fixed inside the rectangular groove and located on one side of the circular groove. The side gasket and the circular cover gasket are an integral structure, and the side gasket is rotatably sleeved on the shaft block. The position of the circular cover gasket corresponds to the circular groove.

[0010] Preferably, the back of the circular cover is provided with an integrated sealing gasket, and the sealing gasket is adapted to the circular groove.

[0011] Preferably, the sealing cap further includes a gasket groove formed in the inner wall of the rectangular groove, and the gasket groove corresponds to the sealing gasket.

[0012] Preferably, the sealing cover further includes a positioning protrusion fixed to the inner wall of the rectangular groove and located on one side of the shaft block, and the back of the side pad has two positioning slots corresponding to the positioning protrusion, and the positioning protrusion is engaged into one of the positioning slots.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The damping slider for CNC machine tools provided in this application innovatively improves the structure of the linear guide system by setting three sliders on each of the two Z-axis guides, and designing the middle slider as a damping slider. At the same time, an oil inlet hole is set in the middle of the front of the damping slider, so that oil can reach the damping surface through the oil hole, forming an oil film to dampen vibration between the damping slider and the guide rail. This unique structural design can effectively reduce the vibration of the linear guide system, significantly reduce the adverse effects of vibration on the machining quality of the machine tool, make the surface of the machined workpiece smoother and the dimensional accuracy higher, and greatly improve the product qualification rate. At the same time, it reduces the impact and wear of vibration on the cutting tool, extends the service life of the cutting tool, reduces the number of cutting tool replacements and costs, and further improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the damping slider of this utility model; Figure 3 This utility model Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a side sectional view of the oil inlet structure of this utility model; Figure 5 This utility model Figure 4 A magnified view of a portion of region B in the middle; In the diagram: 1. Spindle box; 2. Z-axis guide rail; 3. Slider 1; 4. Slider 2; 5. Damping slider; 51. Guide groove; 52. Rectangular groove; 53. Circular groove; 54. Oil inlet; 55. Sealing cover; 551. Circular cover gasket; 552. Side pad; 553. Shaft block; 554. Sealing gasket; 555. Gasket groove; 556. Positioning slot; 557. Positioning protrusion. Detailed Implementation

[0015] 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.

[0016] Example Please see Figures 1 to 5 This is an embodiment of the present utility model, which provides the following technical solution: a damping slider for a CNC machine tool, comprising... The spindle housing 1 and two Z-axis guide rails 2 are provided on the front of the spindle housing 1. Slider 1 3, slider 2 4 and damping slider 5 are slidably arranged on the two Z-axis guide rails 2. The damping slider 5 is located between slider 1 3 and slider 2 4. In subsequent actual use, slider 1 3, slider 2 4 and damping slider 5 are all connected to the external substrate, so that the external substrate can be slidably installed on the spindle housing 1. The damping slider 5 is equipped with an oil inlet structure.

[0017] In this embodiment, preferably, the back of the damping slider 5 is provided with a guide groove 51 that is adapted to the Z-axis guide rail 2, so that the damping slider 5 can smoothly slide and cooperate with the Z-axis guide rail 2.

[0018] In this embodiment, preferably, the oil inlet structure includes a rectangular groove 52 on the front of the damping slider 5, two circular grooves 53 in the rectangular groove 52, and an oil inlet hole 54 in the inner side of the circular grooves 53 and communicating with the guide groove 51. Subsequently, oil can reach the inner side of the guide groove 51 through the oil inlet hole 54, that is, the contact damping surface between the guide groove 51 and the Z-axis guide rail 2, so that an oil film damping vibration is formed between the damping slider 5 and the Z-axis guide rail 2, which can reduce the vibration of the linear guide rail system.

[0019] In this embodiment, preferably, a sealing cap 55 is provided on one side of each circular groove 53 in the rectangular groove 52. When the oil inlet hole 54 is not needed in the future, the circular groove 53 can be covered and sealed by the sealing cap 55 to prevent foreign objects from entering.

[0020] In this embodiment, preferably, the sealing cover 55 includes a circular cover 551, a side pad 552, and a shaft block 553. The shaft block 553 is fixed inside the rectangular groove 52 and located on one side of the circular groove 53. The side pad 552 and the circular cover 551 are an integral structure, both made of rubber material, which will undergo elastic deformation when squeezed. The side pad 552 is rotatably sleeved on the shaft block 553, and the circular cover 551 is positioned corresponding to the circular groove 53. Subsequently, the operator can rotate the side pad 552 around the shaft block 553 so that the circular cover 551 rotates to the circular groove 53, thereby covering and sealing the circular groove 53 and the oil inlet hole 54 through the circular cover 551. When it is necessary to inject oil into the guide groove 51 through the oil inlet hole 54 in the future, the circular cover 551 can be rotated and removed again to expose the circular groove 53 and the oil inlet hole 54 normally.

[0021] In this embodiment, preferably, the back of the circular cover gasket 551 is provided with an integrated sealing gasket 554, and the sealing gasket 554 is adapted to the circular groove 53, so that when the circular cover gasket 551 is subsequently rotated to cover the circular groove 53, the sealing gasket 554 can be embedded in the circular groove 53 to improve the sealing effect.

[0022] In this embodiment, preferably, the sealing cap 55 further includes a pad groove 555 formed in the inner wall of the rectangular groove 52, and the pad groove 555 corresponds to the sealing pad 554, so that when the circular cap 551 is rotated away from the circular groove 53, the sealing pad 554 can enter the pad groove 555 and be properly placed. If the circular groove 53 is to be covered by the circular cap 551 later, the circular cap 551 is pulled outward forcefully, so that the circular cap 551, the side pad 552 and the sealing pad 554 undergo elastic deformation until the sealing pad 554 is moved out of the pad groove 555. Then the circular cap 551 and the side pad 552 can be rotated smoothly, so that the circular cap 551 can be rotated to the circular groove 53 to cover the circular groove 53, so that the sealing pad 554 is inserted into the circular groove 53 for sealing.

[0023] In this embodiment, preferably, the sealing cover 55 further includes a positioning protrusion 557 fixed to the inner wall of the rectangular groove 52 and located on one side of the shaft block 553. Two positioning slots 556 corresponding to the positioning protrusion 557 are provided on the back of the side pad 552. The positioning protrusion 557 is engaged in one of the positioning slots 556, achieving auxiliary limiting after the circular cover 551 and the side pad 552 are rotated. This ensures that the operator obtains a certain auxiliary limiting after rotating the circular cover 551. When the operator needs to rotate the circular cover 551... When the round cover pad 551 rotates, the round cover pad 551 can be forcefully rotated and turned, causing the side pad 552 to rotate around the shaft block 553. This causes the side pad 552 to be elastically deformed by the pressure of the positioning protrusion 557, which eventually pushes the positioning protrusion 557 out of the positioning slot 556. When the side pad 552 rotates 180 degrees around the shaft block 553, the positioning protrusion 557 will be squeezed into the positioning slot 556, thus achieving auxiliary positioning of the round cover pad 551 and the side pad 552 after rotation.

[0024] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 damping slider for CNC machine tools, characterized in that: include The spindle housing (1) and two Z-axis guide rails (2) are provided on the front of the spindle housing (1). Slider 1 (3), slider 2 (4) and damping slider (5) are slidably provided on the two Z-axis guide rails (2), and the damping slider (5) is located between slider 1 (3) and slider 2 (4). The damping slider (5) is provided with an oil inlet structure.

2. The damping slider for CNC machine tools according to claim 1, characterized in that: The back of the damping slider (5) is provided with a guide groove (51) that is compatible with the Z-axis guide rail (2).

3. A damping slider for a CNC machine tool according to claim 2, characterized in that: The oil inlet structure includes a rectangular groove (52) on the front of the damping slider (5), two circular grooves (53) in the rectangular groove (52), and an oil inlet hole (54) in the inner side of the circular grooves (53) and communicating with the guide groove (51).

4. A damping slider for a CNC machine tool according to claim 3, characterized in that: A sealing cap (55) is provided on one side of each circular groove (53) within the rectangular groove (52).

5. A damping slider for a CNC machine tool according to claim 4, characterized in that: The sealing cap (55) includes a circular cover gasket (551), a side gasket (552), and a shaft block (553). The shaft block (553) is fixed inside the rectangular groove (52) and on one side of the circular groove (53). The side gasket (552) and the circular cover gasket (551) are an integral structure, and the side gasket (552) is rotatably sleeved on the shaft block (553). The position of the circular cover gasket (551) corresponds to the circular groove (53).

6. A damping slider for a CNC machine tool according to claim 5, characterized in that: The circular cover gasket (551) has an integrated sealing gasket (554) on its back side, and the sealing gasket (554) is adapted to the circular groove (53).

7. A damping slider for a CNC machine tool according to claim 6, characterized in that: The sealing cap (55) also includes a gasket groove (555) formed in the inner wall of the rectangular groove (52), and the gasket groove (555) corresponds to the sealing gasket (554).

8. A damping slider for a CNC machine tool according to claim 6, characterized in that: The sealing cap (55) also includes a positioning protrusion (557) fixed to the inner wall of the rectangular groove (52) and located on one side of the shaft block (553). The back of the side pad (552) has two positioning slots (556) corresponding to the positioning protrusion (557). The positioning protrusion (557) is inserted into one of the positioning slots (556).

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