Machine tool machining spindle stabilizing device

Abstract

The invention relates to the technical field of machine tool equipment, in particular to a machine tool machining spindle stabilizing device. A spindle seat comprises a vertical base, a Y sliding rail connected with a Y sliding groove is arranged on one face of the vertical base, side pulling plates are arranged on the two sides of the other face of the vertical base, and the two side pulling plates are connected through a transverse connecting ridge; an installation wing extending outwards is arranged on one side of the bottom of the side pull plate, a clamping piece is arranged below the installation wing, a stable pull rod is arranged above the side pull plate, the end of the stable pull rod is clamped by an inclined clamping block, and the part, extending out of the inclined clamping block, of the end of the stable pull rod is connected through a nut. The main shaft seat is optimally arranged and is stably connected with the main shaft case, the stabilizing pull rod is arranged on the side pull plate, and inclined upward pulling force is generated through the stabilizing pull rod, so that vibration generated by the combined action of rotation and material cutting during rotation operation of the main shaft of the main shaft case is balanced and weakened, and the production precision of the main shaft is guaranteed; and the product quality is improved, the defective rate is effectively reduced, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool equipment, and in particular to a machine tool processing spindle stabilization device. Background Art

[0002] Machine tools are essential basic equipment in modern industrial production and are widely used in automobile manufacturing. With the rapid development of the manufacturing industry, the machine tool industry has also ushered in new development opportunities. The demand for CNC machine tools is increasing due to their high precision. As an important market for global machine tool consumption and production, China's machine tool industry output value and consumption are among the highest in the world.

[0003] The stability of the machine tool spindle has a vital impact on the machining accuracy and surface quality. In recent years, with the widespread application of CNC machine tools, spindle accuracy and stability have become key factors in improving machining quality. The radial rotation error of the spindle is one of the important factors affecting its accuracy and stability. Testing and vibration modal research on it can be used for prediction and compensation of machine tool processing, thereby improving the machining accuracy and surface quality of parts.

[0004] In terms of technological progress, domestic and foreign scholars have conducted extensive research on modal simulation calculation methods and rotation error test methods for machine tool spindles. For example, the natural frequency of the electric spindle is obtained through modal analysis, which provides an analytical basis for the structural design of high-speed electric spindles and the determination of the optimal preload of bearings. In addition, the spindle-casing vibration transmission mechanical model in high-speed electric spindles based on Hertz theory and least squares theory, as well as the simplification and determination of certain parameters of the electric spindle using the multi-body transfer matrix method, are important technical means to improve the stability of the spindle.

[0005] In practical applications, the stability problem of the spindle can be analyzed and solved in many ways. For example, the dynamic characteristics of the spindle can be analyzed by the transfer matrix method to reflect the dynamic characteristics of the electric spindle system. In addition, the spindle rotation error test is also an important part of improving stability. By using high-precision measurement equipment and methods, the spindle rotation error can be accurately measured and analyzed.

[0006] In summary, the research and analysis of machine tool spindle stability is a multifaceted process involving modal analysis, which can effectively improve the stability of the machine tool spindle, thereby improving the processing performance and accuracy of the entire machine tool.

[0007] But in addition to the optimization at the industrial control level, the motor spindle can also be stabilized by optimizing the structure. For example, the patent with application number CN201710692293.8 discloses a machine tool spindle with a protective function, including a shaft core, the machine tool spindle with a protective function also includes a hood and a front bearing, the shaft core sleeve is fixed on the motor along the axial direction of the output shaft of the motor, the hood is fixed at the front end of the shaft core sleeve and forms a first air outlet gap between the shaft core sleeve, the front bearing is installed inside the shaft core sleeve and located at the front end of the shaft core sleeve, the shaft core is located in the shaft core sleeve, its rear end is connected to the output shaft of the motor by transmission, its front end is installed on the front bearing and extends out of the shaft core sleeve through the hood, and the shaft core has a main air duct along its axial direction. The present invention uses the wind blown out by the fan to enter the first cavity along the main air duct and then blow out from the first air outlet gap, blocking sand and the like outside the shaft core sleeve, keeping the bearing clean, reducing the wear of the bearing, and ensuring the stable operation of the machine tool spindle. However, although this technical solution uses wind force to reduce bearing wear and ensure stable operation of the machine tool spindle, it is difficult to accurately control in actual production to achieve its ultimate goal and achieve the final effect. Summary of the invention

[0008] The present invention provides a spindle stabilizing device for machine tools, which is stably connected to a spindle case through the joint action of a vertical base, a side pull plate, a mounting wing and a transverse connecting ridge. A stabilizing pull rod is arranged on the side pull plate, and the stabilizing pull rod exerts an inclined upward pulling force on the side pull plate, so as to balance and weaken the vibration of the part of the spindle of the spindle case that passes through the spindle seat end due to the joint action of rotation and cutting of materials during the rotating operation, thereby ensuring the production accuracy of the spindle, improving the quality of the product, effectively reducing the defective rate, and improving the economic benefits.

[0009] The above-mentioned technical purpose of the present invention is achieved through the following technical scheme: a machine tool processing spindle stabilization device comprises a machine body, the machine body comprises a base and a vertical frame, the vertical frame is arranged on the base; the vertical frame is provided with a horizontal X-line rail, the X-line rail is connected to the spindle slide through a first slider, the spindle slide is provided with a vertical Y-slide groove, the Y-slide groove is slidably connected to the spindle seat, the spindle seat comprises a vertical base, one side of the vertical base is provided with a Y-slide rail connected to the Y-slide groove, and both sides of the other side of the vertical base are provided with side pull plates, the two side pull plates are connected by a horizontal connecting ridge, one side of the bottom of the side pull plate is provided with an outwardly extending mounting wing, a clamping piece is provided below the mounting wing, a stabilizing pull rod is provided above the side pull plate, the end of the stabilizing pull rod is clamped by an oblique clamping block, and the end of the stabilizing pull rod protruding from the oblique clamping block is connected by a nut.

[0010] As a preferred embodiment of the technical solution of the present invention, two mutually connected spindle slides are provided on the X-line rail, the two spindle slides are connected by a connecting part, the connecting part is provided with a plurality of anti-interference holes, and the length of the anti-interference holes gradually increases from top to bottom.

[0011] As a preferred embodiment of the technical solution of the present invention, the oblique clamping block is arranged at the connection between the side pull plate and the transverse connecting ridge, and the thickness of the side pull plate is less than half of the width of the oblique clamping block.

[0012] As a preferred embodiment of the technical solution of the present invention, the oblique clamping block is a clamping block having a clamping groove, and the groove width of the clamping groove is smaller than the outer diameter length of the stabilizing rod.

[0013] As a preferred embodiment of the technical solution of the present invention, a limiting recess is provided at the connection between the oblique clamp block and the end of the stabilizing rod.

[0014] As a preferred embodiment of the technical solution of the present invention, a main shaft end protrudes downwardly at the connection between the two side pull plates and the transverse connecting ridge, a main shaft end is provided with a main shaft hole, shock-absorbing holes are provided around the circumference of the main shaft hole, the shock-absorbing holes include a wind guide part and a linear gathering part that are interconnected, the wind guide part is a bullet-shaped hole with the hole cavity tightened inward at the end, and the linear gathering part is a straight hole with a consistent hole diameter everywhere.

[0015] As a preferred embodiment of the technical solution of the present invention, all the shock-absorbing holes arranged in a circle on the main shaft end constitute a polygon with the vertical line where the main shaft hole axis is located as the axis of symmetry, and the inner wall of the air guide part is provided with raised ribs arranged in a spiral shape, and a plurality of the raised ribs are arranged in a circle to form spiral rifling.

[0016] As a preferred embodiment of the technical solution of the present invention, the spindle end is provided with an air inlet hole with a larger aperture on the outside of the spindle hole, and an air guide surface is provided on the outermost side of the air inlet hole.

[0017] As a preferred embodiment of the technical solution of the present invention, a high-position counterweight is provided at the connection between the side pull plate and the vertical base, and the lowest height of the high-position counterweight is higher than half the height of the vertical base.

[0018] As a preferred embodiment of the technical solution of the present invention, a plurality of ventilation holes are provided on the connecting ridge and the side pull plate.

[0019] In summary, the present invention has the following beneficial effects.

[0020] 1. Through the spindle seat connected to the spindle slide, the spindle seat is connected to the spindle chassis, and the vertical base, side pull plate, mounting wing and transverse connecting ridge work together to stably connect with the spindle chassis. A stabilizing pull rod is set on the side pull plate, and the stabilizing pull rod exerts an oblique upward pulling force on the side pull plate, so as to balance and weaken the vibration of the part of the spindle chassis that passes through the spindle seat end due to the combined effect of rotation and cutting of the material during the rotation operation, thereby ensuring the production accuracy of the spindle, improving the quality of the product, effectively reducing the defective rate, and improving the economic benefits.

[0021] 2. By setting the interference holes 31 with gradually longer sides, the bottom weight is reduced and the center of gravity of the spindle seat assembled with the spindle chassis is increased. After the center of gravity is increased, the balanced distribution of mass can effectively decompose and balance the vibration of the spindle to achieve a shock-absorbing and stabilizing effect.

[0022] 3. When the spindle extended from the spindle box is rotating and cutting, the surrounding air flow rate becomes faster due to the rotation of the spindle, and the air is introduced into the air inlet through the wind guide surface. After the air gathers in the air inlet, the air pressure in the air inlet increases, and the high-pressure air in the air inlet is squeezed toward the shock-absorbing hole. Since the spirally arranged raised ribs on the inner wall of the wind guide part form spiral rifling, the high-pressure air generates air rotation through the spiral rifling. After the air rotates, the air thrust is generated, which thrusts the spindle hole inward, thereby reducing the circumferential vibration caused by the rotation of the spindle, thereby improving the cutting task of the spindle under high-precision requirements.

[0023] 4. Design a linear gathering part at the rear half of the shock-absorbing hole. Through the small aperture design, the air is gathered so that the air can quickly flow out through the linear gathering part, and the spindle box located behind the spindle hole is cooled by high-speed blowing, which helps to reduce the temperature of the spindle box and extend the service life of the spindle box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The present invention is a schematic diagram of the overall structure of a machine tool machining spindle stabilization device.

[0026] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a machine body in a machine tool machining spindle stabilization device.

[0027] Figure 3 The present invention is a front view of a machine body in a machine tool machining spindle stabilization device.

[0028] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a spindle slide in a spindle stabilization device for machine tool processing.

[0029] Figure 5 The present invention is a rear side view of a spindle slide in a spindle stabilization device for a machine tool.

[0030] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a spindle seat in a spindle stabilization device for machine tool processing.

[0031] Figure 7 The present invention is a rear side view of a spindle seat in a spindle stabilization device for machining a machine tool.

[0032] Figure 8 The present invention is a top view of a spindle seat in a spindle stabilization device for machining a machine tool.

[0033] Fig. 9 A machine tool spindle stabilizing device according to the present invention Fig. 9 Cross-sectional view at AA in the middle.

[0034] Fig.10 It is a partial cross-sectional view of a spindle end in a machine tool processing spindle stabilization device of the present invention.

[0035] in: 1. Machine body, 2. Base, 3. Stand, 4. X-line rail, 5. Spindle slide, 6. First slider, 7. Y slide groove, 8. Spindle seat, 9. Vertical base, 10. Y slide rail, 11. Side pull plate, 12. Horizontal connecting ridge, 13. Mounting wing, 14. Clamp, 15. Stabilizing rod, 16. Oblique clamp, 17. Nut, 18. Spindle end, 19. Spindle hole, 20. Shock-absorbing hole, 21. Wind guide part, 22. Linear gathering part, 23. Raised rib, 24. Limiting recess, 25. Inlet hole, 26. Wind guide surface, 27. High-position counterweight, 28. Ventilation hole, 29. Clamp groove, 30. Connecting part, 31. Anti-interference hole, 32. Motor frame, 33. Slider accommodating cavity, 34. Bearing clamp, 35. Slider connecting block. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described below with reference to the accompanying drawings: Refer to the attached Figure 1 To Attachment Fig.10As shown, a spindle stabilization device for machine tool processing includes a machine body 1, which includes a base 2 and a stand 3, and the stand 3 is arranged on the base 2. A horizontal X-line rail 4 is arranged on the stand 3, and the X-line rail 4 is connected to the spindle slide 5 through a first slider 6, and the first slider 6 is connected to the spindle slide 5 through a slider connecting block 35, and the slider connecting block 35 is arranged on the back of the spindle slide 5. A bearing clamp 34 is also arranged on the back of the spindle slide 5, and is connected to the screw motor arranged on the stand 3 through the bearing clamp 34 (wherein the screw motor is not drawn in the accompanying drawings, and the screw motor is horizontally arranged on the stand 3), and the bearing clamp 34 is wrapped and clamped on the ball bearing of the screw motor, and the screw motor rotates to drive the spindle slide 5 to make horizontal left and right reciprocating motion on the X-line rail 4. A vertical Y-slide 7 is arranged on the spindle slide 5, and the Y-slide 7 is slidably connected to the spindle seat 8. A motor frame 32 is provided on the top of the spindle slide 5, and a motor for driving the spindle seat 8 to move is installed on the motor frame 32. The output end of the motor is connected to a ball screw, and the ball screw is connected to the spindle seat 8, thereby driving the spindle seat 8 to reciprocate up and down on the Y axis (the motor and the ball screw are not drawn in the attached drawings).

[0037] The spindle seat 8 includes a vertical base 9, one side of the vertical base 9 is provided with a Y slide rail 10 connected to the Y slide groove 7, and the other side of the vertical base 9 is provided with side pull plates 11 on both sides, the two side pull plates 11 are connected by a horizontal connecting ridge 12, and one side of the bottom of the side pull plate 11 is provided with an outwardly extending mounting wing 13, and a clamping piece 14 is provided below the mounting wing 13. The mounting wing 13 is connected to the spindle box (the spindle box is not drawn in the accompanying drawings). As long as an insertion block adapted to the clamping piece 14 is welded above the spindle box, the mounting wing 13 and the spindle box are stably connected to each other through interference fit between the insertion block and the clamping piece 14, and the specifications of the spindle box can be matched and selected according to actual conditions. A stabilizing rod 15 is provided above the side pull plate 11, and the end of the stabilizing rod 15 is clamped by an oblique clamping block 16, and the end of the stabilizing rod 15 extending out of the oblique clamping block 16 is connected by a nut 17.

[0038] Through the spindle seat 8 connected to the spindle slide 5, the spindle seat 8 is connected to the spindle chassis, and the vertical base, side pull plate, mounting wing and transverse connecting ridge work together to stably connect to the spindle chassis, and a stabilizing pull rod is arranged on the side pull plate. The stabilizing pull rod exerts an oblique upward pulling force on the side pull plate, so as to balance and weaken the vibration of the part of the spindle of the spindle chassis that passes through the spindle seat end due to the combined effect of rotation and cutting of the material during the rotation operation, thereby ensuring the production accuracy of the spindle, improving the quality of the product, effectively reducing the defective rate, and improving the economic benefits.

[0039] Two mutually connected spindle slides 5 are provided on the X-line rail 4. The two spindle slides 5 are connected by a connecting portion 30. The connecting portion 30 is provided with a plurality of anti-interference holes 31, and the length of the anti-interference holes 31 gradually increases from top to bottom.

[0040] The oblique clamping block 16 is disposed at the connection between the side pull plate 11 and the transverse connecting ridge 12 , and the thickness of the side pull plate 11 is less than half of the width of the oblique clamping block 16 .

[0041] The oblique clamping block 16 is a clamping block having a clamping groove 29 , and the groove width of the clamping groove 29 is smaller than the outer diameter length of the stabilizing rod 15 .

[0042] A limiting recess 24 is provided at the connection between the oblique clamping block 16 and the end of the stabilizing rod 15 .

[0043] A main shaft end 18 is protruding downwardly at the connection between the two side pull plates 11 and the transverse connecting ridge 12, and a main shaft hole 19 is provided on the main shaft end 18. Shock-absorbing holes 20 are provided around the circumference of the main shaft hole 19. The shock-absorbing holes 20 include an air guide portion 21 and a linear gathering portion 22 which are interconnected. The air guide portion 21 is a bullet-shaped hole with the hole cavity tightened inward at the end, and the linear gathering portion 22 is a straight hole with a consistent hole diameter everywhere.

[0044] All the damping holes 20 arranged in a circle on the spindle end 18 form a polygon with the vertical line where the axis of the spindle hole 19 is located as the symmetry axis. The inner wall of the air guide 21 is provided with raised ribs 23 arranged in a spiral shape. Multiple raised ribs 23 are arranged in a circle to form a spiral rifling. The principle is that under the action of the rifling, the air entering the air guide 21 rotates along the spiral shape of the rifling to form an airflow. When the airflow rotates, it exerts a force on the outer wall of the damping hole 20. The force given by the outer wall of the damping hole 20 is transmitted to the periphery of the spindle hole 19, so that the spindle hole 19 plays a damping role on the spindle. At the same time, it can be further configured that the ends of the raised ribs 23 on the inner walls of the shock-absorbing holes 20 circumferentially arranged around the main shaft hole 19 are always facing the main shaft hole 19. By setting the ends of the raised ribs 23 on the inner walls of all the shock-absorbing holes 20 to face, the force generated by the shock-absorbing holes 20 on the main shaft hole 19 is gathered toward the axis of the main shaft hole 19. Since the generated forces are all toward the axis of the main shaft hole 19, the main shaft can be stabilized.

[0045] The spindle end 18 is provided with an air inlet 25 with a larger aperture outside the spindle hole 19, and an air guide surface 26 is provided at the outermost side of the air inlet 25. The circular ring formed by the air guide surface 26 is in the shape of a trumpet with the trumpet mouth facing outward. When the spindle extending from the spindle box is rotating and cutting, the surrounding air flow rate becomes faster due to the rotation of the spindle, and the air is introduced into the air inlet 25 through the air guide surface 26. After the air is gathered in the air inlet 25, the air pressure in the air inlet 25 increases, and the high-pressure air in the air inlet 25 is squeezed toward the shock-absorbing hole 20. Since the raised ribs 23 arranged in a spiral shape on the inner wall of the wind guide part 21 form a spiral rifling, the high-pressure air generates air rotation through the spiral rifling. After the air rotates, the air thrust generates an inward thrust on the spindle hole 19, so that the circumferential vibration caused by the rotation of the spindle is weakened, thereby improving the cutting task of the spindle under high-precision requirements. At the same time, a linear gathering portion 22 is designed at the rear half of the shock-absorbing hole 20. Through the small aperture design, air is gathered so that the air can quickly flow out through the linear gathering portion 22, thereby performing a high-speed blowing and cooling effect on the spindle box located behind the spindle hole 19, thereby helping to reduce the temperature of the spindle box and extend the service life of the spindle box.

[0046] A high-position counterweight 27 is provided at the connection between the side pull plate 11 and the vertical base 9, and the lowest height of the high-position counterweight 27 is higher than half the height of the vertical base 9. Since the bottom is connected to the spindle box through the clamping member 14, and the mass of the spindle box is large, the center of gravity of the spindle seat 8 after the spindle box is connected is low. When the center of gravity of the spindle seat 8 after the spindle box is assembled is low, when the spindle box generates vibration due to the rotation of the spindle, it cannot be well dispersed through the spindle seat 8. After the center of gravity is raised, the balanced distribution of mass can effectively decompose and balance the vibration of the spindle, achieving a shock-absorbing and stable effect.

[0047] A plurality of ventilation holes 28 are provided on the connecting ridge 12 and the side pull plate 11 .

[0048] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0049] In the description of the present invention, it should be understood that the terms "front and back" are only used to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the device or component referred to must have a specific orientation, and therefore cannot be understood as a limitation of the invention.

[0050] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A machine tool spindle stabilization device, comprising a machine body (1), characterized in that: The machine body (1) comprises a base (2) and a stand (3), wherein the stand (3) is arranged on the base (2); a horizontal X-line rail (4) is arranged on the stand (3), wherein the X-line rail (4) is connected to a spindle slide (5) via a first slider (6); a vertical Y-slide groove (7) is arranged on the spindle slide (5), wherein the Y-slide groove (7) is slidably connected to a spindle seat (8); the spindle seat (8) comprises a vertical base (9), wherein one side of the vertical base (9) is provided with a Y-slide rail (10) connected to the Y-slide groove (7); Side pull plates (11) are provided on both sides of the other side of the vertical base (9), and the two side pull plates (11) are connected by a transverse connecting ridge (12). A mounting wing (13) extending outward is provided on one side of the bottom of the side pull plate (11), and a clamping member (14) is provided below the mounting wing (13). A stabilizing rod (15) is provided above the side pull plate (11), and the end of the stabilizing rod (15) is clamped by an oblique clamping block (16), and the end of the stabilizing rod (15) extending out of the oblique clamping block (16) is connected by a nut (17).

2. A machine tool processing spindle stabilization device according to claim 1, characterized in that: Two mutually connected spindle slides (5) are provided on the X-line rail (4); the two spindle slides (5) are connected via a connecting portion (30); the connecting portion (30) is provided with a plurality of anti-interference holes (31), and the length of the anti-interference holes (31) gradually increases from top to bottom.

3. The machine tool processing spindle stabilization device according to claim 1, characterized in that: The oblique clamping block (16) is arranged at the connection between the side pull plate (11) and the transverse connecting ridge (12), and the thickness of the side pull plate (11) is less than half of the width of the oblique clamping block (16).

4. The machine tool processing spindle stabilization device according to claim 1, characterized in that: The oblique clamping block (16) is a clamping block having a clamping groove (29), and the groove width of the clamping groove (29) is smaller than the outer diameter length of the stabilizing pull rod (15).

5. The machine tool processing spindle stabilization device according to claim 2, characterized in that: A limiting recess (24) is provided in the connection between the oblique clamp block (16) and the end of the stabilizing pull rod (15).

6. The machine tool processing spindle stabilization device according to claim 1, characterized in that: A main shaft end (18) is protruding downwards from the connection between the two side pull plates (11) and the transverse connecting ridge (12), and a main shaft hole (19) is provided on the main shaft end (18). Shock-absorbing holes (20) are provided around the circumference of the main shaft hole (19). The shock-absorbing holes (20) include an air guide portion (21) and a linear gathering portion (22) that are interconnected. The air guide portion (21) is a bullet-shaped hole with an inwardly tightened end, and the linear gathering portion (22) is a straight hole with a consistent hole diameter.

7. The machine tool processing spindle stabilization device according to claim 6, characterized in that: A plurality of pairs of the damping holes (20) arranged circumferentially on the main shaft end (18) form a polygon with a vertical line on which the axis of the main shaft hole (19) is located as a symmetry axis, and the inner wall of the air guide portion (21) is provided with raised ribs (23) arranged in a spiral shape, and a plurality of the raised ribs (23) are arranged circumferentially to form a spiral rifling.

8. The machine tool processing spindle stabilization device according to claim 7, characterized in that: The spindle end (18) is provided with an air inlet hole (25) with a larger aperture outside the spindle hole (19), and an air guide surface (26) is provided at the outermost side of the air inlet hole (25).

9. The machine tool processing spindle stabilization device according to claim 1, characterized in that: A high-position counterweight (27) is provided at the connection between the side pull plate (11) and the vertical base (9), and the lowest height of the high-position counterweight (27) is higher than half the height of the vertical base (9).

10. The machine tool processing spindle stabilization device according to claim 1, characterized in that: A plurality of ventilation holes (28) are provided on the connecting ridge (12) and the side pull plate (11).

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