Double-spindle butt joint tool arrangement of numerical control lathe

Abstract

The present application relates to the technical field of double-shaft numerical control lathe, in particular to a numerical control lathe double-main-shaft butt joint tool arrangement structure, which comprises a mounting base and a tool arrangement piece arranged on the mounting base, a tool rest is detachably connected to the tool arrangement piece, an adjusting assembly is arranged inside the tool rest, and an elastic washer is sleeved on a fastener; the bottom protrusion of the fastener connected to the tool rest is slidably installed into a groove arranged on the tool arrangement piece, the fastener is pre-tightened to compress the elastic washer when reaching a suitable position, the fastener is not completely tightened, the elastic washer is in contact with the groove to fix the tool rest at this time, the tool rest is allowed to be finely adjusted under the premise of keeping stable, then the adjusting assembly is pressed to make it longitudinally displace, the bottom adjusting component is in contact with the tool arrangement piece when the limiting assembly limits it, then the adjusting assembly is rotated to cooperate with the tool arrangement piece, and the tool rest is driven to be finely adjusted.

Description

Technical Field

[0001] This invention relates to the field of dual-axis CNC lathe technology, specifically a dual-spindle docking tool rack structure for a CNC lathe. Background Technology

[0002] A twin-spindle CNC lathe is a precision machining equipment controlled by a CNC system and equipped with two independent spindles. It can complete multiple machining processes of a workpiece simultaneously or collaboratively. Its core design lies in the collaborative operation of the two spindles, which significantly improves production efficiency and machining accuracy. The tool rack structure of the twin-spindle CNC lathe is the core design for achieving high-efficiency machining. Through the arrangement and collaborative movement of multiple tools, it can complete the continuous machining of complex processes.

[0003] The main components of existing twin-spindle CNC lathes, such as Figure 2 and Figure 14 As shown, it mainly includes a mounting base and an outer shell mounted on the outside of the mounting base. The outer shell is provided with a cabinet door for opening and closing. The mounting base is provided with a transmission assembly and a spindle assembly driven by the transmission assembly. The mounting base is also provided with a tool holder for mounting the tool holder, a tool holder for mounting the tool, and fasteners for fixing the tool holder.

[0004] Chinese patent CN119282154A discloses a CNC lathe with a dual-spindle docking tool structure. The flushing mechanism includes a pressure chamber on some bolts. Each pressure chamber is connected to a first flushing pipe connected to a water outlet pipe. The bottom end of the bolt with the pressure chamber is also provided with a water spray hole communicating with the first flushing pipe. Water is collected in the pressure chamber and then sprayed outward from the water spray hole and onto the tool, washing away iron filings and impurities left on the tool or tool slot during machining.

[0005] Chinese patent CN111604506A discloses a dual-spindle CNC lathe. The invention features a fine-tuning tool post that allows for precise adjustment of the machine tool's XY-direction, ensuring the relative position of the tool and spindle. The innovation of this machine tool structure lies in its two spindles, one of which can perform machining while the other does so simultaneously, doubling the machining efficiency. The lathe's two tool posts can be finely adjusted in two directions, ensuring the correct tool and spindle position during workpiece machining. The operation is convenient, sensitive, and highly precise.

[0006] In existing twin-spindle CNC lathes, the tool post is pre-fixed to the tool rack with fasteners. Due to the large self-weight of the tool post mounting end, a cantilever torque is formed, causing the tool post to often be in an inclined state after initial installation. To achieve the required parallelism, operators currently rely mainly on manually tapping the tool post with tools such as plastic rods and observing and adjusting it in real time. Manual tapping is difficult to achieve precise micron-level parallelism adjustment, and the process is time-consuming. When installing multiple tools, this problem is magnified, seriously slowing down the tool rack efficiency. After completing the parallelism adjustment, the spacing between each tool post must be manually adjusted according to the workpiece size and the number of tools in the rack. This manual operation is not only inconvenient, but also prone to damaging the already calibrated tool post parallelism during the adjustment process, causing secondary deviations and further extending the overall tool rack time.

[0007] Therefore, the present invention provides a tool arrangement structure for a dual-spindle CNC lathe that can improve the tool arrangement rate and facilitate the adjustment of the spacing between multiple tool holders. Summary of the Invention

[0008] To address the problems of low tool sizing rate and difficulty in accurately controlling tool sizing accuracy in existing dual-axis CNC lathes, a dual-spindle docking tool sizing structure for CNC lathes is designed.

[0009] The technical solution adopted by the present invention to solve its technical problem is: a dual spindle docking tool rack structure for CNC lathe, including a mounting base and a tool rack component set on the mounting base, wherein a tool holder is detachably connected to the tool rack component, an adjustment component is provided inside the tool holder, and an elastic washer is sleeved on the fastener;

[0010] When the tool holder is fixedly connected to the tool rack by fasteners, the elastic washer is compressed by the fasteners to be in a semi-compressed state, which initially fixes the tool holder and allows it to be adjusted. The tool holder is gradually fine-tuned to the required parallelism by rotating the adjustment component. Then, the distance between each tool holder is adjusted by rotating the adjustment component according to the workpiece size and the number of tool holders installed.

[0011] The adjustment component transmits rotational power to the adjustment element located at the upper end of the tool holder, causing the adjustment element to move the tool holder and complete the adjustment.

[0012] Furthermore, the adjustment component is located at the center of the tool holder, and includes a rotating component rotatably mounted inside the tool holder and extending to the upper end of the tool holder. One end of the rotating component located inside the tool holder is rotatably connected to a deceleration component. The end of the deceleration component away from the rotating component is fixedly connected to a spring, and the end of the deceleration component close to the spring is fixedly connected to an adjustment component.

[0013] Furthermore, the adjustment assembly includes a worm gear structure rotatably installed inside the blade holder, with adjustment components rotatably connected to both sides of the worm gear. The bottom of the adjustment component contacts the upper end of the blade assembly. The adjustment component is set as a roller, and the outer side of the roller is provided with a stamp to enhance friction. A rotating wheel is provided at one end of the worm gear that extends through to the upper end of the blade holder.

[0014] Furthermore, the tool holder has an internal mounting cavity with the upper and lower ends of the mounting cavity penetrating the tool holder. The adjustment component is located inside the mounting cavity, the outer wall of the deceleration component is slidably connected to the inner wall of the adjustment cavity, and the end of the spring away from the deceleration component is fixedly connected to the mounting cavity.

[0015] Furthermore, an adjusting block is fixedly connected to the outer side of the rotating component, and a limiting groove is formed on the outer side of the adjusting block. The bottom end of the adjusting block is rotatably connected to the upper end of the deceleration assembly.

[0016] Furthermore, the tool holder is also provided with a limiting component, which includes elastic limiting components symmetrically arranged on the outside of the rotating component. Adjusting rods are symmetrically arranged on one side of the two sets of elastic limiting components. An elastic abutment is also provided on the outside of the rotating component, which is located between the two sets of elastic limiting components.

[0017] Furthermore, the upper end of the blade holder is provided with an adjustment groove, and the inner wall of the adjustment groove is provided with a friction part. When the blade holder is adjusted, the adjustment part contacts the friction part and rolls on the friction part as the adjustment component rotates, thereby fine-tuning the blade holder.

[0018] Furthermore, the fastener is installed inside the dovetail groove of the cutter bar, and the elastic washer is located between the bottom end of the fastener and the dovetail groove.

[0019] Furthermore, an outer shell is fixedly connected to the outside of the mounting base, and cabinet doors are symmetrically arranged on the outer shell. A transmission assembly is provided on one side of the mounting base, as well as a spindle assembly that is connected to the transmission assembly. The tool holder and fasteners are detachably connected.

[0020] The beneficial effects of this invention are:

[0021] The present invention discloses a dual-spindle docking tool rack structure for a CNC lathe. The fasteners connected to the tool holder have their bottom protrusions slidably installed into grooves in the tool rack components. After reaching the appropriate position, the fasteners are pre-tightened to compress the elastic washers. The fasteners are not fully tightened; at this point, the elastic washers abut against the grooves, fixing the tool holder and allowing for fine-tuning while maintaining stability. Then, the adjusting component is pressed to move it longitudinally. When the bottom adjusting component contacts the tool rack components, a limiting component limits its movement. The adjusting component is then rotated to engage with the tool rack components, thereby driving the tool holder for fine-tuning. Once the tool holder is adjusted to the required parallelism, the distance between each tool holder can be adjusted according to the size of the workpiece and the number of tools in the rack, preventing mutual interference. This improves the tool racking speed and facilitates adjusting the distance between multiple tool holders, further increasing the installation speed for multiple tools. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the main body of the present invention;

[0025] Figure 3 This is a schematic diagram of the blade rack structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the tool holder structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of section A;

[0028] Figure 6 This is a cross-sectional view of the tool holder structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the adjustment component structure of the present invention;

[0030] Figure 8 This is a partial cross-sectional view of the adjustment component of the present invention;

[0031] Figure 9 This is a schematic diagram of a tool rack structure according to an embodiment of the present invention;

[0032] Figure 10 For the present invention Figure 9 Enlarged view of section B;

[0033] Figure 11 This is a cross-sectional view of a tool holder structure according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the adjustment component structure according to an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the elastic washer structure of the present invention;

[0036] Figure 14 This is a schematic diagram of a conventional tool holder structure referenced in this invention.

[0037] In the diagram: 1. Outer shell; 2. Cabinet door; 3. Mounting base; 4. Transmission assembly; 5. Spindle assembly; 6. Tool block; 61. Adjustment groove; 62. Friction part; 7. Tool holder; 71. Mounting cavity; 8. Adjustment assembly; 81. Rotating component; 811. Adjusting block; 82. Deceleration assembly; 83. Spring; 84. Adjustment component; 9. Limiting assembly; 91. Elastic limiting component; 92. Elastic abutment component; 10. Fastener; 11. Elastic washer. Detailed Implementation

[0038] To make the technical means, technical features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] Example 1: As Figure 1 - Figure 8 As shown, the present invention provides a dual-spindle docking tool rack structure for a CNC lathe, including a mounting base 3 and a tool rack 6 disposed on the mounting base 3. A tool holder 7 is detachably connected to the tool rack 6. An adjustment component 8 is provided inside the tool holder 7. An elastic washer 11 is sleeved on the fastener 10.

[0040] When the tool holder 7 is fixedly connected to the tool rack 6 by fastener 10, the elastic washer 11 is compressed by the fastener 10 to be in a semi-compressed state, which initially fixes the tool holder 7 and allows it to be adjusted. Then, the tool holder 7 is gradually finely adjusted to the required parallelism by rotating the adjustment component 8. Then, the distance between each tool holder 7 is adjusted by rotating the adjustment component 8 according to the workpiece size and the number of tool holders 7 installed.

[0041] The adjustment component 8 transmits rotational power to the adjustment member 84, which is located at the upper end of the tool holder 6, so that the adjustment member 84 drives the tool holder 7 to move and complete the adjustment.

[0042] Specifically, when installing the tool holder 7, the bottom protrusion of the fastener 10 connected to the tool holder 7 is slidably installed into the groove of the tool rack 6. After reaching the appropriate position, the fastener 10 is pre-tightened to compress the elastic washer 11. The fastener 10 is not fully tightened. At this time, the elastic washer 11 abuts against the groove to fix the tool holder 7, allowing it to be finely adjusted while maintaining stability. The longitudinal displacement is achieved by pressing the adjustment component 8. When the bottom adjustment component 84 contacts the friction part 62 provided on the tool rack 6, the limiting component 9 limits it. Then, the adjustment component 8 is rotated to cooperate with the tool rack 6, thereby driving the tool holder 7 to make fine adjustments. The parallelism of the tool holder 7 is observed in real time by an external calibration tool, which can be a dial indicator. This device is commonly used by those skilled in the art and will not be described in detail here. When the tool holder 7 is adjusted to the required parallelism, the distance between each tool holder 7 can be adjusted according to the size of the workpiece to be processed and the number of tools in the rack to prevent mutual interference.

[0043] In this embodiment, the adjustment component 8 is located at the center of the tool holder 7. It includes a rotating member 81 that is rotatably installed inside the tool holder 7 and extends to the upper end of the tool holder 7. One end of the rotating member 81 located inside the tool holder 7 is rotatably connected to a deceleration component 82. The end of the deceleration component 82 away from the rotating member 81 is fixedly connected to a spring 83. The end of the deceleration component 82 near the spring 83 is fixedly connected to an adjustment member 84. An adjustment block 811 is fixedly connected to the outer side of the rotating member 81. A limiting groove is formed on the outer side of the adjustment block 811. The bottom end of the adjustment block 811 is rotatably connected to the upper end of the deceleration component 82. An installation cavity 71 is formed inside the tool holder 7. The upper and lower ends of the installation cavity 71 respectively penetrate the tool holder 7. The adjustment component 8 is disposed inside the installation cavity 71. The outer wall of the deceleration component 82 is slidably connected to the inner wall of the adjustment cavity. The end of the spring 83 away from the deceleration component 82 is fixedly connected to the installation cavity 71.

[0044] Specifically, such as Figure 6 - Figure 8As shown, a rotating component 81 is located at one end outside the tool holder 7 and is equipped with a wheel. The rotating component 81 can be driven to rotate by the wheel. The adjusting block 811 is located outside the rotating component 81 and has a limiting groove that matches the limiting component 9. When adjusting the tool holder 7, pressing the rotating component 81 will cause the reducing component 82 to slide inside the mounting cavity 71 through the adjusting block 811. At the same time, the spring 83 will be compressed, causing the adjusting component 84 to move and contact the tool rack 6. The reducing component 82 is a planetary gear set. The input rotation of the sun gear is converted into the revolution of the planetary gears by the constrained gear ring. The planetary carrier outputs power at a reduced angular velocity. At the same time, the torque is amplified based on the principle of energy conservation. The purpose is to reduce the rotational speed transmitted by the rotating component 81, thereby increasing the adjustment accuracy of the tool holder 7. The transmission ratio of the gears inside the planetary gear set can be reasonably set according to the required accuracy. The adjusting component 8 can also be set to any other structure that can achieve the same effect.

[0045] In this embodiment, the tool holder 7 is also provided with a limiting component 9. The limiting component 9 includes elastic limiting components 91 symmetrically arranged on the outside of the rotating component 81. Adjusting rods are symmetrically arranged on one side of the two sets of elastic limiting components 91. An elastic abutment component 92 is also provided on the outside of the rotating component 81, which is located between the two sets of elastic limiting components 91.

[0046] Specifically, such as Figure 8 As shown, the limiting component 9 limits the adjusting component 8 when adjusting the tool holder 7 via the elastic limiting member 91, so that the adjusting member 84 at its bottom end is in contact with the friction part 62 in the adjusting groove 61. After adjustment, the elastic limiting member 91 is pressed to limit the adjusting component 8 by pressing the elastic abutment member 92. The elastic limiting member 91 includes a spring telescopic rod and a limiting block at the end of the spring telescopic rod near the rotating member 81. Adjusting rods are symmetrically arranged on the outer sides of the two sets of spring telescopic rods. The ends of the two adjusting rods away from the spring telescopic rods are set as inclined surfaces. When the limit is applied, the two sets of adjusting rods move relative to each other. The elastic contact member 92 includes a pressing rod and an elastic member for resetting the pressing rod. One end of the pressing rod is provided with a contact block. When the elastic contact member 92 is pressed, the contact member at one end of the pressing rod will contact the inclined surface of the adjusting rod. As the pressing is applied, the two sets of elastic limit members 91 are gradually separated. Then, under the reset of the spring 83, the adjusting component 8 is driven to reset, so that the adjusting component 84 is separated from the friction part 62 and put into the mounting cavity 71 opened in the tool holder 7 to avoid subsequent debris interference. At the same time, the limit component 9 can also be set to any other structure that can achieve the same effect.

[0047] In this embodiment, the upper end of the blade rack 6 is provided with an adjustment groove 61, and the inner wall of the adjustment groove 61 is provided with a friction part 62. When the blade holder 7 is adjusted, the adjustment member 84 contacts the friction part 62 and rolls on the friction part 62 as the adjustment component 8 rotates, thereby fine-tuning the blade holder 7.

[0048] Specifically, such as Figure 4 and Figure 5 As shown, in this embodiment, one side of the end of the tool holder 7 where the adjusting groove 61 is mounted is set as an inclined surface, and the inclined surface is provided with a pattern for increasing friction. At the same time, the outer side of the adjusting member 84 that contacts the friction part 62 is also provided with a pattern for increasing friction. The other side of the adjusting groove 61 is set as a right angle surface. When the adjusting assembly 8 adjusts the tool holder 7, the outer side of the adjusting member 84 only contacts the friction part 62. The adjusting member 84 is made of polyurethane rubber, which has high strength, tear resistance, good wear resistance and deformation resistance.

[0049] In this embodiment, a housing 1 is fixedly connected to the outside of the mounting base 3. Cabinet doors 2 are symmetrically arranged on the housing 1. A transmission assembly 4 is provided on one side of the mounting base 3, and a spindle assembly 5 is connected to the transmission assembly 4. Fasteners 10 are installed inside the dovetail groove of the tool rack 6. Elastic washers 11 are located between the bottom end of the fasteners 10 and the dovetail groove. The tool holder 7 is detachably connected to the fasteners 10.

[0050] Specifically, such as Figure 2 , Figure 3 , Figure 6 and Figure 13 The mounting base 3 shown is used to install various components. The outer shell 1 serves as a protective housing to prevent debris from splashing during processing. The cabinet door 2 can be opened for tool arrangement and loading / unloading. The spindle assembly 5 is a symmetrically arranged double spindle, which is driven by a motor to rotate. The transmission assembly 4 can be configured to be a motor driving a lead screw to rotate, and then the two sets of motor lead screws respectively drive the two sets of spindles to adjust their positions. At the same time, the transmission assembly 4 can also be configured to be any other structure that can achieve the same effect. The tool arrangement component 6 is driven by a motor to drive a lead screw to adjust the tool change. At the same time, it can also be configured to achieve the same effect through any other means. The fastener 10 can be configured to be bolt fastening. The elastic washer 11 can be configured to be a wave washer, which deforms under compression and gradually recovers when the force is lost. At the same time, the elastic washer 11 can also be configured to be any other structure that can achieve the same effect.

[0051] Example 2: Figure 1-13 As shown, the present invention provides a dual-spindle docking tool rack structure for a CNC lathe, including a mounting base 3 and a tool rack 6 disposed on the mounting base 3. A tool holder 7 is detachably connected to the tool rack 6. An adjustment component 8 is provided inside the tool holder 7. An elastic washer 11 is sleeved on the fastener 10.

[0052] When the tool holder is fixedly connected to the tool rack by fasteners, the elastic washer is compressed by the fasteners to be in a semi-compressed state, which initially fixes the tool holder and allows it to be adjusted. The tool holder is gradually fine-tuned to the required parallelism by rotating the adjustment component. Then, the distance between each tool holder is adjusted by rotating the adjustment component according to the workpiece size and the number of tool holders installed.

[0053] The adjustment component transmits rotational power to the adjustment element located at the upper end of the tool holder, causing the adjustment element to move the tool holder and complete the adjustment.

[0054] Specifically, the adjustment component 8 is configured as a worm gear structure, and an adjustment element 84 is rotatably connected to both sides of the worm gear. The bottom of the adjustment element 84 contacts the upper end of the cutter 6. The adjustment element 84 can be configured as a roller, and the outer side of the roller is provided with a print to enhance friction. The transmission ratio of the worm gear brings a speed reduction effect, and a rotating wheel is set at the end of the worm that passes through to the upper end of the cutter holder 7. In this embodiment, the speed reduction component 82 in embodiment one can be omitted, and the limiting component 9 is not set. The friction part 62 of the adjustment groove 61 opened in the cutter 6 is set at the bottom edge. It is used in scenarios where the precision requirement is not high. By rotating the rotating wheel, the power is transmitted to the rollers set on both sides of the worm gear through the worm gear, so that they roll on the surface of the friction part 62 and drive the cutter holder 7 to make fine adjustments.

[0055] Working principle: First, the staff opens the cabinet door 2 and assembles the tool holder 7 with the fastener 10 and the elastic washer 11. Then, the bottom protrusion of the fastener 10 connected to the tool holder 7 is slid into the groove of the tool rack 6. After reaching the appropriate position, the fastener 10 is pre-tightened to compress the elastic washer 11. The fastener 10 is not fully tightened. At this time, the elastic washer 11 abuts against the groove to fix the tool holder 7, allowing it to be finely adjusted while keeping the tool holder 7 stable.

[0056] Then, by pressing the adjusting component 8 to make it longitudinally displaced, when the bottom adjusting part 84 contacts the friction part 62 provided on the blade holder 6, the limiting component 9 limits the adjusting component 8 when adjusting the blade holder 7 through the elastic limiting part 91, so that the adjusting part 84 provided at its bottom end keeps in contact with the friction part 62 in the adjusting groove 61, and after the adjustment is completed, the elastic abutment 92 is pressed to contact the elastic limiting part 91 to limit the adjusting component 8. The elastic limiting part 91 includes a spring telescopic rod and a limiting block provided at one end of the spring telescopic rod near the rotating part 81. At the same time, the outer sides of the two sets of spring telescopic rods are symmetrically provided with The adjusting rods have two ends away from the spring telescopic rods that are set as inclined surfaces. When the adjusting assembly 8 is limited, the two sets of adjusting rods move relative to each other. The elastic contact member 92 includes a pressing rod and an elastic member for resetting the pressing rod. One end of the pressing rod is provided with a contact block. When the elastic contact member 92 is pressed, the contact member at one end of the pressing rod will contact the inclined surface of the adjusting rod. As the pressing is done, the two sets of elastic limiting members 91 are gradually separated. Then, under the reset of the spring 83, the adjusting assembly 8 is reset, so that the adjusting member 84 is separated from the friction part 62 and put into the mounting cavity 71 opened in the tool holder 7 to avoid subsequent debris interference.

[0057] Next, rotate the adjustment component 8 to engage with the tool rack 6, thereby driving the tool holder 7 to make fine adjustments. The parallelism of the tool holder 7 can be observed in real time through an external calibration tool. When the tool holder 7 is adjusted to the required parallelism, the distance between each tool holder 7 can be further adjusted according to the size of the workpiece to be processed and the number of tools in the rack, so that they will not interfere with each other. Then, subsequent processing can be carried out.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-spindle tool rack structure for a CNC lathe, comprising a mounting base and tool rack components mounted on the mounting base, characterized in that: The blade rack is detachably connected to a blade holder, which has an adjustment component inside. An elastic washer is fitted onto the fastener. When the tool holder is fixedly connected to the tool rack by fasteners, the elastic washer is compressed by the fasteners to be in a semi-compressed state, which initially fixes the tool holder and allows it to be adjusted. The tool holder is gradually fine-tuned to the required parallelism by rotating the adjustment component. Then, the distance between each tool holder is adjusted by rotating the adjustment component according to the workpiece size and the number of tool holders installed. The upper end of the blade rack is provided with an adjustment groove, and the inner wall of the adjustment groove is provided with a friction part. When the blade holder is adjusted, the adjustment part contacts the friction part and rolls in the friction part as the adjustment component rotates, thereby fine-tuning the blade holder. The fastener is installed inside the dovetail groove of the blade rack, and the elastic washer is located between the bottom end of the fastener and the dovetail groove. The adjustment assembly transmits rotational power to an adjustment member that is in contact with the upper end of the tool holder, causing the adjustment member to move the tool holder and complete the adjustment.

2. The dual-spindle docking tool rack structure for a CNC lathe according to claim 1, characterized in that: The adjustment component is located at the center of the tool holder and includes a rotating component that is rotatably installed inside the tool holder and extends to the upper end of the tool holder. One end of the rotating component located inside the tool holder is rotatably connected to a deceleration component. The end of the deceleration component away from the rotating component is fixedly connected to a spring, and the end of the deceleration component close to the spring is fixedly connected to an adjustment component.

3. The dual-spindle docking tool rack structure for a CNC lathe according to claim 2, characterized in that: The adjustment assembly includes a worm gear structure rotatably installed inside the blade holder. Adjustment components are rotatably connected to both sides of the worm gear. The bottom of the adjustment component contacts the upper end of the blade assembly. The adjustment component is set as a roller. The outer side of the roller is provided with a stamp to enhance friction. A rotating wheel is provided at one end of the worm gear that extends to the upper end of the blade holder.

4. A dual-spindle docking tool rack structure for a CNC lathe according to claim 2 or 3, characterized in that: The tool holder has an internal mounting cavity with the upper and lower ends of the mounting cavity penetrating through it. The adjustment component is located inside the mounting cavity, the outer wall of the deceleration component is slidably connected to the inner wall of the adjustment cavity, and the end of the spring away from the deceleration component is fixedly connected to the mounting cavity.

5. A dual-spindle docking tool rack structure for a CNC lathe according to claim 2, characterized in that: An adjusting block is fixedly connected to the outer side of the rotating component. A limiting groove is provided on the outer side of the adjusting block, and the bottom end of the adjusting block is rotatably connected to the upper end of the deceleration assembly.

6. A dual-spindle docking tool rack structure for a CNC lathe according to claim 4, characterized in that: The tool holder is also equipped with a limiting component, which includes elastic limiting components symmetrically arranged on the outside of the rotating component. Adjusting rods are symmetrically arranged on one side of the two sets of elastic limiting components. An elastic abutment is also provided on the outside of the rotating component, which is located between the two sets of elastic limiting components.

7. The dual-spindle docking tool rack structure for a CNC lathe according to claim 1, characterized in that: The mounting base is fixedly connected to an outer shell, and cabinet doors are symmetrically arranged on the outer shell. A transmission component is provided on one side of the mounting base, as well as a spindle assembly that is connected to the transmission component. The tool holder and fasteners are detachably connected.

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