A column spindle box assembly mechanism for a machine tool

Abstract

This invention discloses a column and spindle box assembly mechanism for a machine tool, comprising a column, including a column body and a set of spindle box mounting guides fixed to both sides of the front end face of the column body; a spindle box, movably mounted on the spindle box mounting guides and driven by a corresponding spindle box drive mechanism; a vibration damping mechanism, wherein a set of container mounting guides is fixed to the rear end face of the column body, and the vibration damping mechanism includes a vibration damping container movably mounted on the container mounting guides, the vibration damping container being filled with a plurality of corresponding damping particles; and a container drive mechanism, including a container drive screw rotatably mounted on the column body between the container mounting guides, and a second screw nut adapted to the container drive screw being fixed to the vibration damping container. This invention can improve the vibration resistance of the machine tool column itself, thereby improving the support stability of the spindle box and effectively improving the machining accuracy of the machine tool.

Description

Technical Field

[0001] This invention pertains to a machine tool assembly mechanism, specifically a machine tool column spindle box assembly mechanism. Background Technology

[0002] The machine tool column and spindle box assembly includes the machine tool column and the spindle box that can be movably mounted on the machine tool column. The spindle box is driven to move up and down along the machine tool column by a corresponding spindle box drive mechanism, so as to drive the spindle head mounted on the spindle box to perform milling on the corresponding workpiece.

[0003] The existing machine tool column spindle box assembly mechanism has the following defects in actual use:

[0004] 1) Vibration concentration caused during milling is transmitted to the machine tool column through the spindle box, which makes it easy for large stress concentration to form at the connection between the spindle box and the machine tool column, thereby aggravating the impact of vibration on milling and thus affecting the machining accuracy of the machine tool.

[0005] 2) The machine tool column itself has relatively poor vibration resistance, which makes its support stability for the spindle box not meet the design requirements, thus further affecting the accuracy of milling.

[0006] Therefore, the research objective of this invention is to design a machine tool column-spindle box assembly mechanism that can improve the vibration resistance of the machine tool column itself, thereby enhancing the support stability of the spindle box; and effectively disperse the stress between the spindle box and the machine tool column, thus preventing excessive stress concentration at the connection point, thereby further improving the support stability of the spindle box and ultimately improving the machining accuracy of the machine tool. Summary of the Invention

[0007] In view of the technical problems existing in the prior art, the present invention provides a column spindle box assembly mechanism for a machine tool, which can effectively solve the technical problems existing in the prior art.

[0008] The technical solution of this invention is:

[0009] A column spindle box assembly mechanism for a machine tool, comprising:

[0010] The column includes a column body and a set of spindle box mounting rails fixed to both sides of the front end face of the column body. A corresponding motor mounting seat is fixedly installed in the middle of the top of the column body, and a corresponding opening is provided on the column body behind the motor mounting seat.

[0011] The spindle box is movably mounted on the spindle box mounting guide rail and driven by a corresponding spindle box drive mechanism. The spindle box drive mechanism includes a spindle box drive screw rotatably mounted on the column body between the spindle box mounting guide rails. A first screw nut adapted to the spindle box drive screw is fixedly connected to the middle of the rear end face of the spindle box. The spindle box drive screw is driven by a drive motor fixedly mounted on the motor mounting base. A drive gear with its rear end extending to the rear side of the opening of the column body is fixedly connected to the output shaft end of the drive motor.

[0012] The vibration damping mechanism includes a set of container mounting rails corresponding to the main spindle box mounting rails fixedly connected to the rear end face of the column body. The vibration damping mechanism includes a vibration damping container that is movably installed on the container mounting rails. The vibration damping container is filled with a number of corresponding damping particles.

[0013] The container drive mechanism includes a container drive screw rotatably mounted on a column body between the container mounting guide rails. A second screw nut adapted to the container drive screw is fixedly connected to the vibration damping container. The lead of the container drive screw is the same as that of the spindle box drive screw, and a driven gear meshing with the drive gear is fixedly connected to the upper part of the container drive screw. The transmission ratio between the driven gear and the drive gear is 1:1.

[0014] A set of spindle box mounting sliders adapted to the spindle box mounting guide rail are fixed to both sides of the rear end face of the spindle box. The spindle box is movably mounted onto the spindle box mounting guide rail by the cooperation of the spindle box mounting sliders with the spindle box mounting guide rail.

[0015] The column spindle box assembly mechanism also includes a force-sharing mechanism. The force-sharing mechanism includes four guide blocks fixed to the upper and lower ends of both sides of the spindle box. Each guide block has a corresponding guide hole, and a corresponding guide shaft is movably sleeved in each guide hole. A force-sharing slider is fixedly connected to the outer end of each guide shaft and movably mounted on the spindle box mounting rail. A corresponding baffle is fixedly connected to the inner end of each guide shaft. A corresponding helical spring is fixedly sleeved on the guide shaft between the baffle and the guide block. The force-sharing mechanism also includes a slider driving assembly. When the upper force-sharing slider moves to the upper end of the spindle box mounting rail, or when the lower force-sharing slider moves to the lower end of the spindle box mounting rail, the slider driving assembly drives the force-sharing slider to move towards the spindle box.

[0016] The slider drive assembly includes limiting blocks fixedly installed at the upper and lower ends of the spindle box mounting guide rail. When the outer end of the force-shaping slider abuts against the limiting block and the spindle box continues to move, the helical spring is stretched, and the force-shaping slider moves toward the spindle box.

[0017] Alternatively, the slider drive assembly includes an electromagnet fixedly mounted on the spindle box inside the guide block. When the upper component slider moves to the upper end of the spindle box mounting rail, or the lower component slider moves to the lower end of the spindle box mounting rail, the electromagnet is energized to attract the baffle, thereby stretching the helical spring and driving the component slider to move towards the spindle box.

[0018] The vibration damping container includes a limiting plate and a fixed box body fixed to the middle of the limiting plate. The damping particles are filled in the sealed space formed by the fixed box body and the limiting plate.

[0019] A set of container mounting sliders adapted to the container mounting guide rail are fixed to both sides of the front end face of the limiting plate. The vibration damping container is movably mounted onto the container mounting guide rail by the cooperation of the container mounting sliders with the container mounting guide rail.

[0020] The limiting plate of the vibration damping container has an integrally formed fixing seat on the upper side, and a corresponding locking interface is provided on the fixing seat. The second lead screw nut is fixedly locked to the locking interface of the fixing seat, and the second lead screw nut is detachably locked to the fixing seat by multiple corresponding locking bolts.

[0021] The damping particles used for vibration reduction are aluminum-based spherical particles.

[0022] The two sides of the column body are respectively folded backward, and the folded part is L-shaped.

[0023] Advantages of this invention:

[0024] 1) A motor mounting base for mounting a drive motor is fixedly installed at the top center of the column body of the present invention. A corresponding through-hole is provided on the column body behind the motor mounting base, so that a drive gear extending to the outside of the through-hole of the column body can be fixedly connected to the output shaft end of the drive motor. On this basis, the present invention further provides a vibration damping mechanism, which includes a vibration damping container movably installed on the container mounting guide rail. The vibration damping container is fixedly filled with a number of corresponding damping particles for vibration damping. The lead of the container drive screw for driving the vibration damping container is consistent with that of the main spindle box drive screw. A driven gear meshing with the drive gear is fixedly connected to the upper part of the container drive screw, and the transmission ratio between the driven gear and the drive gear is set to 1:1.

[0025] In this way, the vibration damping container can be driven simultaneously during the movement of the spindle box, and the position of the vibration damping container can always correspond to that of the spindle box. The frictional energy dissipation between the damping particles can form a significant vibration reduction and isolation effect. Therefore, it can significantly improve the vibration resistance of the machine tool column itself, and actively control the vibration damping point to the position closest to the vibration source, thereby greatly improving the support stability of the spindle box and improving the machining accuracy of the machine tool.

[0026] 2) The column spindle box assembly mechanism of the present invention also includes a force-sharing mechanism. This force-sharing mechanism comprises four guide blocks fixed to the upper and lower ends of both sides of the spindle box. Each guide block is movably sleeved with a corresponding guide shaft through guide holes. Furthermore, a force-sharing slider, movably mounted on the spindle box mounting rail, is fixed to the outer end of each guide shaft. This increases the number of support points for the spindle box and extends these support points outwards, significantly increasing the support stability of the spindle box and achieving force dispersion. This prevents excessive stress concentration at the connection between the spindle box and the machine tool column, effectively further improving the support stability of the spindle box and thus effectively improving the machining accuracy of the machine tool.

[0027] 3) The inner end of the guide shaft of the present invention is respectively fixedly connected with a corresponding baffle. The guide shaft between the baffle and the guide block is respectively fixedly sleeved with a corresponding helical spring. The force distribution mechanism of the present invention also includes a slider driving assembly. When the force distribution slider located on the upper side moves to the upper end of the spindle box mounting guide rail, or when the force distribution slider located on the lower side moves to the lower end of the spindle box mounting guide rail, the slider driving assembly drives the force distribution slider to move towards the spindle box, so as to actively shorten the distance between the force distribution slider and the spindle box before approaching the limit position of the stroke, thereby preventing excessive influence on the stroke of the spindle box caused by the setting of the force distribution slider, so as to ensure that the force distribution mechanism of the present invention can be implemented smoothly.

[0028] 4) The vibration damping container of the present invention includes a limiting plate and a fixed box body fixed to the middle of the limiting plate, so as to facilitate the filling of damping particles in the middle of the vibration damping container, and to facilitate the installation of container mounting sliders on both sides of the limiting plate, so that the vibration damping mechanism can achieve a reasonable vibration damping effect and facilitate the movable installation of the vibration damping mechanism.

[0029] 5) The limiting plate of the vibration damping container of the present invention has an integrally formed, inwardly provided fixed seat on its upper side. The second lead screw nut is fixedly snapped into the snap-fit ​​interface of the fixed seat, and is detachably installed and removed by multiple corresponding locking bolts. This is because, due to the influence of various factors during operation, a small error value will eventually appear between the moving stroke of the vibration damping container and the moving stroke of the spindle box. When it is necessary to compensate for this error value, the second lead screw nut can be directly disassembled for position compensation movement, and then the vibration damping container can be moved into place and the vibration damping container and the second lead screw nut can be locked and installed in place again to achieve error value compensation.

[0030] 6) The damping particles for vibration reduction in this invention are aluminum-based spherical particles. Since aluminum has low density and high hardness, using it as damping particles can not only reduce weight load, but also effectively ensure friction energy dissipation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0032] Figure 2 This is a schematic diagram of the rear structure of Embodiment 1 of the present invention.

[0033] Figure 3 This is a schematic diagram of the spindle box drive mechanism of the present invention.

[0034] Figure 4 This is a schematic diagram of the container driving mechanism of the present invention.

[0035] Figure 5 This is a schematic diagram of the force-sharing mechanism according to Embodiment 1 of the present invention.

[0036] Figure 6 This is a schematic diagram of the vibration damping mechanism of the present invention.

[0037] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0038] Figure 8 This is a schematic diagram of the force-sharing mechanism in Embodiment 2 of the present invention.

[0039] In the attached diagram: Column 1, Column body 101, Spindle box mounting guide rail 102, Motor mounting base 103, Spindle box 2, Spindle box drive mechanism 3, Spindle box drive screw 301, First screw nut 302, Drive motor 303, Drive gear 4, Vibration damping mechanism 5, Vibration damping container 501, Limiting plate 5011, Fixed box 5012, Damping particles for vibration damping 502, Container mounting guide rail 6, Container drive mechanism 7, Container drive screw 701, Second screw nut 702, Driven gear 8, Spindle box mounting slider 9, Force component mechanism 10, Four guide blocks 1001, Guide shaft 1002, Force component slider 1003, Baffle 1004, Helical spring 1005, Slider drive assembly 1006, Container mounting slider 11, Fixed base 12, Locking bolt 13. Detailed Implementation

[0040] To facilitate understanding by those skilled in the art, the structure of the present invention will now be described in further detail with reference to the accompanying drawings:

[0041] Example 1:

[0042] refer to Figure 1-6 A column spindle box assembly mechanism for a machine tool, comprising:

[0043] The column 1 includes a column body 101 and a set of spindle box mounting guide rails 102 fixed to both sides of the front end face of the column body 101. A corresponding motor mounting seat 103 is fixedly installed in the middle of the top of the column body 101. A corresponding opening is provided on the column body behind the motor mounting seat 103.

[0044] The spindle box 2 is movably mounted on the spindle box mounting guide rail 102 and driven by a corresponding spindle box drive mechanism 3. The spindle box drive mechanism 3 includes a spindle box drive screw 301 rotatably mounted on the column body 101 between the spindle box mounting guide rails 102. A first screw nut 302 adapted to the spindle box drive screw 301 is fixedly connected to the middle of the rear end face of the spindle box 2. The spindle box drive screw 301 is driven by a drive motor 303 fixedly mounted on the motor mounting base 103. A drive gear 4 with its rear end extending to the rear side of the opening of the column body 101 is fixedly connected to the output shaft end of the drive motor 303.

[0045] The vibration damping mechanism 5 includes a set of container mounting rails 6 corresponding to the spindle box mounting rails 102, which are fixedly connected to the rear end face of the column body 101. The vibration damping mechanism 5 includes a vibration damping container 501 that is movably mounted on the container mounting rails 6. The vibration damping container 501 is filled with a number of corresponding damping particles 502.

[0046] The container drive mechanism 7 includes a container drive screw 701 rotatably mounted on a column body 101 between the container mounting guide rails 6. A second screw nut 702 adapted to the container drive screw 701 is fixedly connected to the vibration damping container 501. The lead of the container drive screw 701 is the same as that of the spindle box drive screw 301, and a driven gear 8 meshing with the drive gear 4 is fixedly connected to the upper part of the container drive screw 701. The transmission ratio between the driven gear 8 and the drive gear 4 is 1:1.

[0047] The column body 101 of the present invention has a motor mounting base 103 for mounting a drive motor 303 fixedly installed at the top center. The column body behind the motor mounting base 103 has a corresponding through-hole, so that a drive gear 4 with its rear end extending to the outside of the through-hole of the column body 101 can be fixedly connected to the output shaft end of the drive motor 303. On this basis, the present invention further adds a vibration damping mechanism 5, which includes a vibration damping container 501 movably mounted on the container mounting guide rail 6. The vibration damping container 501 is fixedly filled with a number of corresponding vibration damping damping particles 502. The lead of the container drive screw 701 for driving the vibration damping container 501 is the same as that of the spindle box drive screw 301. A driven gear 8 that meshes with the drive gear 4 is fixedly connected to the upper part of the container drive screw 701, and the transmission ratio between the driven gear 8 and the drive gear 4 is set to 1:1.

[0048] In this way, the vibration damping container 501 can be driven simultaneously during the movement of the spindle box 2, and the position of the vibration damping container 501 can always correspond to the spindle box 2. The frictional energy dissipation between the damping particles 502 can form a significant vibration reduction and isolation effect, which can significantly improve the vibration resistance of the machine tool column itself, and can actively control the vibration damping point to the position closest to the vibration source, thereby greatly improving the support stability of the spindle box 2 and improving the machining accuracy of the machine tool.

[0049] A set of spindle box mounting sliders 9 adapted to the spindle box mounting guide rail 102 are fixedly connected to both sides of the rear end face of the spindle box 2. The spindle box 2 is movably mounted onto the spindle box mounting guide rail 102 by the cooperation of the spindle box mounting sliders 9 and the spindle box mounting guide rail 102.

[0050] The column spindle box assembly mechanism also includes a force-sharing mechanism 10. The force-sharing mechanism 10 includes four guide blocks 1001 fixed to the upper and lower ends of both sides of the spindle box 2. Each guide block 1001 has a corresponding guide hole, and a corresponding guide shaft 1002 is movably sleeved in each guide hole. The outer end of each guide shaft 1002 is fixed with a force-sharing slider 1003 movably mounted on the spindle box mounting guide rail 102. The inner end of each guide shaft 1002 is fixed with a corresponding baffle. 1004, corresponding helical springs 1005 are fixedly sleeved on the guide shaft 1002 between the baffle 1004 and the guide block 1001; the force-sharing mechanism 10 also includes a slider drive assembly 1006, when the upper force-sharing slider 1003 moves to the upper end of the spindle box mounting guide rail 102, or when the lower force-sharing slider 1003 moves to the lower end of the spindle box mounting guide rail 102, the slider drive assembly 1006 drives the force-sharing slider 1003 to move towards the spindle box 2.

[0051] Under the action of the force slider 1003 of the force distribution mechanism 10, the support points of the spindle box 2 can be increased, and the increased support points can be extended and diffused outwards to significantly increase the support stability of the spindle box 2. The force can be distributed to prevent excessive stress concentration at the connection between the spindle box 2 and the column body 101, thereby effectively improving the support stability of the spindle box 2 and thus effectively improving the machining accuracy of the machine tool.

[0052] The inner end of the guide shaft 1002 of the force distribution mechanism 10 is respectively fixed with a corresponding baffle 1004. A corresponding helical spring 1005 is fixedly sleeved on the guide shaft 1002 between the baffle 1004 and the guide block 1001. On this basis, the force distribution mechanism 10 of the present invention also includes a slider drive assembly 1006. When the upper force distribution slider 1003 moves to the upper end of the spindle box mounting guide rail 102, or when the lower force distribution slider 1003 moves to the lower end of the spindle box mounting guide rail 1002, the slider drive assembly 1006 drives the force distribution slider 1003 to move towards the spindle box 2, so as to actively shorten the distance between the force distribution slider 1003 and the spindle box 2 before approaching the limit position of the stroke, thereby preventing excessive influence on the stroke of the spindle box 2 due to the setting of the force distribution slider 1003, so as to ensure that the force distribution mechanism 10 of the present invention can be implemented smoothly.

[0053] The slider drive assembly 1006 includes limiting blocks fixedly installed at the upper and lower ends of the spindle box mounting guide rail 102. When the outer end of the force-shaping slider 1003 abuts against the limiting block and the spindle box 2 continues to move, the helical spring 1005 is stretched, and the force-shaping slider 1003 moves toward the spindle box 2.

[0054] The vibration damping container 501 includes a limiting plate 5011 and a fixed box 5012 fixed to the middle of the limiting plate 5011. The damping particles 502 fill the sealed space formed by the fixed box 5012 and the limiting plate 5011.

[0055] A set of container mounting sliders 11 adapted to the container mounting guide rail 102 are fixedly connected to both sides of the front end face of the limiting plate 5011. The vibration damping container 501 is movably mounted onto the container mounting guide rail 6 by the cooperation of the container mounting sliders 11 and the container mounting guide rail 6.

[0056] The vibration damping container 501 of the present invention includes a limiting plate 5011 and a fixed box 5012 fixed to the middle part of the limiting plate 5011, so as to fill the middle part of the vibration damping container 502 and to facilitate the installation of container mounting sliders 11 on both sides of the limiting plate 5011, so that the vibration damping mechanism 5 can achieve a reasonable vibration damping effect and facilitate the movable installation of the vibration damping mechanism 5.

[0057] The upper side of the limiting plate 5011 of the vibration damping container 501 is integrally formed and has a corresponding fixing seat 12. The fixing seat 12 is provided with a corresponding locking interface. The second lead screw nut 702 is fixedly locked to the locking interface of the fixing seat 12, and the second lead screw nut 702 is detachably locked to the fixing seat 12 by multiple corresponding locking bolts 13.

[0058] Due to various factors during operation, the travel distance of the vibration damping container 501 and the travel distance of the spindle box will eventually result in a small error value. When it is necessary to compensate for this error value, the second lead screw nut 702 can be disassembled and moved for position compensation. Then, the vibration damping container 501 can be moved into place, and the vibration damping container 501 and the second lead screw nut 702 can be locked and installed in place again to achieve error compensation.

[0059] The damping particles 502 used for vibration reduction are aluminum-based spherical particles. Because aluminum has low density and high hardness, using it as damping particles can not only reduce weight load, but also effectively ensure friction energy dissipation.

[0060] The two sides of the column body 101 are respectively folded backward, and the folded part is L-shaped.

[0061] Example 2:

[0062] refer to Figure 7-8The difference between this embodiment and Embodiment 1 is that the slider driving assembly 1006 includes an electromagnet fixedly installed on the spindle box 2 inside the guide block 1001. When the upper component slider 1003 moves to the upper end of the spindle box mounting rail 102, or when the lower component slider 1003 moves to the lower end of the spindle box mounting rail 102, the electromagnet is energized to attract the baffle 1004, causing the helical spring 1005 to be stretched, thereby driving the component slider 1003 to move towards the spindle box 2.

[0063] By using an electromagnet, the driving of the force-shaping slider 1003 can be ensured, and there is no need to install other components on the spindle box mounting rail 102, so as to prevent the performance of the spindle box mounting rail 102 from being affected by the intervention of other components.

[0064] It should be noted that this embodiment is implemented in the same way as embodiment one in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in embodiment one.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A column spindle box assembly mechanism for a machine tool, characterized in that: include The column (1) includes a column body (101) and a set of spindle box mounting guide rails (102) fixed to both sides of the front end face of the column body (101). A corresponding motor mounting seat (103) is fixedly installed in the middle of the top of the column body (101). A corresponding opening is provided on the column body (101) behind the motor mounting seat (103). The spindle box (2) is movably mounted on the spindle box mounting guide rail (102) and driven by the corresponding spindle box drive mechanism (3). The spindle box drive mechanism (3) includes a spindle box drive screw (301) rotatably mounted on the column body (101) between the spindle box mounting guide rails (102). A first screw nut (302) adapted to the spindle box drive screw (301) is fixedly connected to the middle of the rear end face of the spindle box (2). The spindle box drive screw (301) is driven by a drive motor (303) fixedly mounted on the motor mounting base (103). A drive gear (4) with its rear end extending to the rear side of the opening of the column body (101) is fixedly connected to the output shaft end of the drive motor (303). The vibration damping mechanism (5) has a set of container mounting guide rails (6) corresponding to the main spindle box mounting guide rail (102) fixedly connected to the rear end face of the column body (101). The vibration damping mechanism (5) includes a vibration damping container (501) movably mounted on the container mounting guide rail (6). The vibration damping container (501) is filled with a number of corresponding damping particles (502). The container drive mechanism (7) includes a container drive screw (701) rotatably mounted on a column body (101) between the container mounting rails (6). A second screw nut (702) adapted to the container drive screw (701) is fixedly connected to the vibration damping container (501). The lead of the container drive screw (701) is the same as that of the spindle box drive screw (301). A driven gear (8) meshing with the drive gear (4) is fixedly connected to the upper part of the container drive screw (701). The transmission ratio between the driven gear (8) and the drive gear (4) is 1:

1. The column spindle box assembly mechanism also includes a force-sharing mechanism (10). The force-sharing mechanism (10) includes four guide blocks (1001) fixed to the upper and lower ends of both sides of the spindle box (2). Each guide block (1001) has a corresponding guide hole, and a corresponding guide shaft (1002) is movably sleeved in each guide hole. The outer end of each guide shaft (1002) is fixed with a force-sharing slider (1003) movably mounted on the spindle box mounting guide rail (102). The inner end of each guide shaft (1002) is fixed with a corresponding baffle (1003). 4) Corresponding helical springs (1005) are fixedly sleeved on the guide shaft (1002) between the baffle (1004) and the guide block (1001); the force-sharing mechanism (10) also includes a slider drive assembly (1006). When the upper force-sharing slider (1003) moves to the upper end of the spindle box mounting guide rail (102), or when the lower force-sharing slider (1003) moves to the lower end of the spindle box mounting guide rail (102), the slider drive assembly (1006) drives the force-sharing slider (1003) to move towards the spindle box (2). The slider drive assembly (1006) includes limiting blocks fixedly installed at the upper and lower ends of the spindle box mounting guide rail (102). When the outer end of the force-shaping slider (1003) abuts against the limiting block and the spindle box (2) continues to move, the helical spring (1005) is stretched, and the force-shaping slider (1003) moves toward the spindle box (2). The slider drive assembly (1006) includes an electromagnet fixedly installed on the spindle box (2) inside the guide block (1001). When the upper component slider (1003) moves to the upper end of the spindle box mounting guide rail (102), or when the lower component slider (1003) moves to the lower end of the spindle box mounting guide rail (102), the electromagnet is energized to attract the baffle (1004), causing the helical spring (1005) to be stretched, thereby driving the component slider (1003) to move towards the spindle box (2).

2. The column spindle box assembly mechanism for a machine tool according to claim 1, characterized in that: A set of spindle box mounting sliders (9) adapted to the spindle box mounting guide rail (102) are fixedly connected to both sides of the rear end face of the spindle box (2). The spindle box (2) is movably mounted on the spindle box mounting guide rail (102) by the cooperation of the spindle box mounting sliders (9) and the spindle box mounting guide rail (102).

3. The column spindle box assembly mechanism for a machine tool according to claim 1, characterized in that: The vibration damping container (501) includes a limiting plate (5011) and a fixed box (5012) fixed to the middle of the limiting plate (5011). The damping particles (502) fill the sealed space formed by the fixed box (5012) and the limiting plate (5011).

4. The column spindle box assembly mechanism for a machine tool according to claim 3, characterized in that: A set of container mounting sliders (11) adapted to the container mounting guide rail (102) are fixedly connected to both sides of the front end face of the limiting plate (5011). The vibration damping container (501) is movably mounted on the container mounting guide rail (6) by the cooperation of the container mounting sliders (11) and the container mounting guide rail (6).

5. The column spindle box assembly mechanism for a machine tool according to claim 4, characterized in that: The upper side of the limiting plate (5011) of the vibration damping container (501) is integrally formed and has a corresponding fixed seat (12) inward. The fixed seat (12) has a corresponding snap-fit ​​interface. The second lead screw nut (702) is fixedly snapped to the snap-fit ​​interface of the fixed seat (12), and the second lead screw nut (702) is detachably locked to the fixed seat (12) by multiple corresponding locking bolts (13).

6. The column spindle box assembly mechanism for a machine tool according to claim 1, characterized in that: The damping particles (502) used for vibration reduction are aluminum-based spherical particles.

7. The column spindle box assembly mechanism for a machine tool according to claim 1, characterized in that: The two sides of the column body (101) are respectively folded backward, and the folded part is L-shaped.

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