Machine tool machining system

Abstract

The utility model relates to the technical field of machine tools, and particularly discloses a machine tool machining system. The machine tool machining system comprises a machine tool body, a cutter, a supporting mechanism and a workpiece driving mechanism. Wherein the machine tool body is provided with a main shaft chuck; the cutter is arranged on the machine tool body and used for machining workpieces. The supporting mechanism comprises a supporting component used for supporting a workpiece and a lifting assembly used for driving the supporting component to ascend and descend. The workpiece driving mechanism comprises a driving mechanism chuck and a shaft moving assembly, the shaft moving assembly can drive the driving mechanism chuck to move axially so as to be close to and / or away from the main shaft chuck, and the driving mechanism chuck is used for clamping a workpiece and driving the workpiece to move axially relative to the cutter. According to the machine tool machining system, when the ultra-long part is machined, repeated clamping is not needed, halfway turning and segmented splicing machining are not needed, machining can be completed through one-time clamping, and the machining efficiency of the ultra-long part can be effectively improved. And meanwhile, deflection deformation of the workpiece can be prevented, and stable machining of the whole workpiece is achieved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and more specifically, to a machine tool processing system. Background Technology

[0002] In existing automated CNC operations, machine tool processing is a common method. It involves placing the workpiece into a machine tool, clamping and fixing it, and then performing machining and surface treatment. Shaft parts are widely used in various mechanical equipment, mainly serving as supports and transmission components. Because these parts are often core components in mechanical equipment and operate in high-temperature, high-speed environments, the technical requirements for these parts are very high to ensure that the assembled workpiece meets rotational accuracy requirements.

[0003] In the field of mechanical manufacturing, the demand for processing ultra-long workpieces (such as slender shafts with a length-to-diameter ratio of L to d, i.e., L / d ≥ 25, large guide rails, etc.) is increasing. However, traditional machine tool technology and process methods make it difficult to process ultra-long workpieces. Moreover, problems such as bending deformation, large workpiece deflection deformation, uneven stress during processing, and limited processing length may occur during processing, making it difficult to obtain satisfactory surface roughness, geometric accuracy, and hardness improvement.

[0004] In summary, how to effectively solve the problem that traditional machine tools cannot meet the processing length and accuracy requirements of ultra-long workpieces is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a machine tool processing system whose structural design can effectively solve the problem that traditional machine tools cannot meet the processing length and processing accuracy of ultra-long workpieces.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A machine tool processing system, comprising:

[0008] The machine tool body is equipped with a spindle chuck;

[0009] A cutting tool, mounted on the machine tool body, is used to process the workpiece;

[0010] The support mechanism includes a support component for supporting the workpiece and a lifting assembly for driving the support component to rise and fall.

[0011] A workpiece driving mechanism includes a driving mechanism chuck and an axis shifting assembly. The axis shifting assembly can drive the driving mechanism chuck to move axially toward and / or away from the spindle chuck. The driving mechanism chuck is used to clamp the workpiece and drive the workpiece to move axially relative to the cutting tool.

[0012] Optionally, in the above-described machine tool processing system, the workpiece driving mechanism includes:

[0013] A chuck support is located at the output end of the shaft displacement assembly;

[0014] A spindle seat is rotatably mounted on the chuck bracket, and the drive mechanism chuck is coaxially mounted on the spindle seat;

[0015] A rotary drive device is used to drive the spindle seat to rotate.

[0016] Optionally, in the above-described machine tool processing system, the workpiece driving mechanism includes an auxiliary support assembly disposed at the bottom of the chuck bracket, the auxiliary support assembly being used to abut against the machine tool body and move along the axial direction of the machine tool body.

[0017] Optionally, in the above-mentioned machine tool processing system, the auxiliary support assembly includes:

[0018] Abutting component, used to abut against the machine tool body;

[0019] An elastic element is provided in the chuck bracket;

[0020] A first connecting member is disposed on the abutting member and connected to the elastic member, for adjusting the height of the abutting member to abut against the machine tool body.

[0021] Optionally, in the above-mentioned machine tool processing system, the lifting assembly includes:

[0022] Mounting bracket, wherein the mounting bracket is provided with threaded holes;

[0023] The second connector is inserted into the threaded hole and threadedly engaged with the threaded hole. When the second connector rotates, it can move up and down relative to the mounting bracket.

[0024] A movable plate is located at the top of the second connector, and the supporting component is located on the movable plate.

[0025] Optionally, in the above-mentioned machine tool processing system, the mounting bracket is provided with a guide hole, and the lifting assembly further includes a guide rod passing through the guide hole, with the top end of the guide rod located on the moving plate.

[0026] Optionally, in the above-described machine tool processing system, the support component includes an adjusting clamp for clamping the workpiece and capable of adjusting the clamping force applied to the workpiece.

[0027] Optionally, in the above-described machine tool processing system, the cutting tool is movably disposed on the machine tool body along the axial direction, and the machine tool body is capable of driving the cutting tool to move axially.

[0028] Optionally, the above-mentioned machine tool processing system also includes:

[0029] A clamping mechanism is used to clamp the workpiece. The clamping mechanism is located on the machine tool body and can move axially synchronously with the cutting tool.

[0030] And / or,

[0031] An auxiliary mechanism is provided on the machine tool body. The auxiliary mechanism and the cutting tool are used to act on the workpiece from opposite sides of the workpiece, and the auxiliary mechanism can provide a balancing force to the workpiece.

[0032] Optionally, the above-mentioned machine tool processing system also includes:

[0033] A feeding mechanism is located at one end of the machine tool body away from the workpiece driving mechanism, and is used to feed the workpiece into the machine tool body.

[0034] And / or,

[0035] An inspection platform is located at the end of the workpiece drive mechanism away from the machine tool body, and is used to inspect the workpiece after it has been processed by the cutting tool.

[0036] The machine tool processing system provided by this utility model includes a machine tool body, a cutting tool, a support mechanism, and a workpiece driving mechanism. The machine tool body is equipped with a spindle chuck; the cutting tool is mounted on the machine tool body and used for machining the workpiece; the support mechanism includes a support component for supporting the workpiece and a lifting assembly for driving the support component to move up and down; the workpiece driving mechanism includes a drive mechanism chuck and an axis-shifting assembly, the axis-shifting assembly being able to drive the drive mechanism chuck to move axially towards and / or away from the spindle chuck, the drive mechanism chuck being used to clamp the workpiece and drive the workpiece to move axially relative to the cutting tool.

[0037] When machining extra-long workpieces using the machine tool processing system provided by this utility model, the workpiece is clamped by a spindle chuck and a drive mechanism chuck. The drive mechanism chuck can fix the workpiece to drive its movement. The spindle chuck can support the workpiece and is axially movable in engagement with it. The drive mechanism chuck can move axially from a position close to the spindle chuck to a position away from it, thereby driving the workpiece to move axially relative to the tool, achieving machining at different positions along the workpiece's axis. Alternatively, the drive mechanism chuck can also move axially from a position away from the spindle chuck to a position close to it, thereby driving the workpiece to move axially relative to the tool, achieving machining at different positions along the workpiece's axis. During the above machining process, the support mechanism lifting assembly can drive the support components to move up and down to support the workpiece and prevent it from bending or deforming.

[0038] In summary, the machine tool processing system provided in this application can drive the workpiece axially through the workpiece drive mechanism. Therefore, it can use a pull-in mode to pull the workpiece in from one end of the spindle chuck for processing, or a push-in mode to push the workpiece from the far end to the spindle chuck for processing. It is evident that this machine tool processing system can complete the processing of ultra-long parts without multiple clamping operations, and without the need for mid-process turning or segmented splicing; processing can be completed in a single clamping, effectively improving the processing efficiency of ultra-long parts.

[0039] Meanwhile, the support mechanism supports the workpiece, and combined with the support of the drive mechanism chuck and spindle chuck, the multi-stage clamping can prevent workpiece deflection and deformation, thus achieving stable processing of the entire workpiece. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a machine tool processing system according to a specific embodiment of the present invention;

[0042] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0043] Figure 3 This is a schematic diagram of the workpiece driving mechanism according to a specific embodiment of the present invention;

[0044] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0045] Figure 5 This is a schematic diagram of the support mechanism according to a specific embodiment of the present utility model;

[0046] Figure 6 This is a schematic diagram of the structure of a cutting tool according to a specific embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of the clamping mechanism according to a specific embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram of the auxiliary mechanism according to a specific embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram of the feeding mechanism according to a specific embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of the structure of an inspection platform according to a specific embodiment of the present invention.

[0051] Figure label:

[0052] 1-Machine tool body; 2-Cutting tool; 3-Support mechanism; 4-Workpiece driving mechanism; 5-Clamping mechanism; 6-Auxiliary mechanism; 7-Feeding mechanism; 8-Inspection platform; 9-Controller;

[0053] 11-Spindle chuck;

[0054] 21-Cutter body; 22-Second force sensor; 23-Second temperature sensor; 24-Vibration sensor; 25-Second cooling nozzle;

[0055] 31-Support component; 32-Lifting assembly; 33-First force sensor; 34-First temperature sensor; 35-First cooling nozzle;

[0056] 321-Mounting bracket; 3211-Threaded hole; 322-Second connector; 323-Moving plate; 324-Guide hole; 325-Guide rod;

[0057] 3212 - Base; 3213 - Fixing plate; 3214 - Guide block;

[0058] 41-Drive mechanism chuck; 42-Shaft shift assembly; 43-Chuck bracket; 44-Spindle seat; 45-Rotary drive device; 46-Auxiliary support assembly; 47-Main support; 48-Secondary support; 49-Angle support;

[0059] 421-Module guide rail; 422-Module slider; 423-Module motor;

[0060] 461-Abutting component; 462-Elastic component; 463-First connecting component;

[0061] 51-Clamping servo motor; 52-Clamping guide rail; 53-Clamping slider; 54-Clamping block; 55-Slider connecting block; 56-Clamping support base; 57-Third force sensor; 58-Third cooling nozzle;

[0062] 61-Auxiliary body; 62-Auxiliary claw; 63-Fourth force sensor; 64-Fourth temperature sensor; 65-Fourth cooling nozzle;

[0063] 71-Feeding table support; 72-Feeding table lifting structure; 73-Moving slide bar; 74-Feeding support table; 75-Feeding moving table; 76-Feeding push rod; 77-Operating panel;

[0064] 81 - Platform; 82 - V-shaped support block. Detailed Implementation

[0065] This utility model discloses a machine tool processing system to meet the processing length and processing accuracy requirements of ultra-long workpieces.

[0066] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0067] Traditional machine tools have the following limitations when machining extra-long workpieces:

[0068] I. Limitations of Machine Tool Structure and Rigidity

[0069] Traditional machine tools use a single cast iron bed (such as gray cast iron HT250), the length of which is limited by the casting process, transportation costs and material stability. The maximum machining length of standard machine tools is usually no more than 3 meters. Extra-long beds (such as more than 5 meters) need to be spliced ​​in sections, but the straightness error of the splicing surface (≥0.02mm / m) will reduce the accuracy of the guide rails, resulting in cumulative machining errors.

[0070] Traditional long-stroke ball screws in machine tools (such as those with a diameter of 50mm and a length of 4 meters) are prone to bending deformation under their own weight and cutting forces. Significant vibration occurs during high-speed machining, resulting in a surface roughness Ra ≥ 1.6μm on the workpiece.

[0071] II. Thermal Deformation and Precision Attenuation

[0072] When cutting extra-long workpieces (such as 5-meter 45 steel shafts), the temperature rise ΔT = 40℃ results in a thermal expansion ΔL ≈ 2.3mm, far exceeding the compensation range of the elastic center (usually ≤ 1mm). If the workpiece is clamped at both ends, the thermal expansion will be hindered, causing the workpiece to bend or even jam, leading to an increased batch scrap rate.

[0073] During long-stroke machining, frictional heat between the guide rail and the leadscrew, as well as motor heating, cause localized temperature rises in the machine tool (e.g., a temperature difference of 5-8℃ between the Z-axis and the guide rail), and thermal deformation of the machine bed leads to tool path deviation. Traditional temperature compensation techniques rely on a limited number of sensors, making it difficult to model the temperature gradient across the entire field, with compensation residuals ≥0.01mm / m.

[0074] III. Insufficient stability of clamping and process systems

[0075] Existing support devices such as tool rests and center rests rely on manual adjustment, and fluctuations in support pressure (e.g., ±0.2MPa) can easily cause periodic changes in machining force. Although hydraulic adaptive supports can dynamically adjust pressure, their response delay is difficult to match the demands of high-speed machining.

[0076] The processing of extra-long workpieces often adopts a segmented processing mode. After processing a certain distance, the workpiece is often turned around to process another segment. This method has low processing efficiency and requires two clamping operations, making it difficult to ensure the consistency of the entire workpiece processing and seriously affecting processing capacity.

[0077] To at least partially overcome the aforementioned limitations, this application provides a machine tool processing system that utilizes an added working drive mechanism and support mechanism to achieve single-clamping processing of ultra-long workpieces, and can effectively suppress deflection deformation during processing. The structure of the machine tool processing system is described in the following embodiments.

[0078] In some embodiments, please refer to Figures 1-2 The machine tool processing system provided by this utility model includes a machine tool body 1, a cutting tool 2, a support mechanism 3, and a workpiece driving mechanism 4. The machine tool body 1 is equipped with a spindle chuck 11. The specific structure of the machine tool body 1 can refer to the configuration of a conventional machine tool. The spindle chuck 11 is used to clamp the workpiece, and the workpiece can move axially within it; that is, the spindle chuck 11 can support the workpiece but does not fix it axially. This can be achieved by adjusting the clamping force of the spindle chuck 11.

[0079] The cutting tool 2 is mounted on the machine tool body 1 and is used to machine the workpiece. The specific form of the cutting tool 2 is set according to needs, such as including cutting tools for cutting operations, surface strengthening tools for surface strengthening treatment, etc. It is understood that the machine tool body 1 may include multiple types of cutting tools 2, or cutting tools 2 of the same type but different specifications, to meet different machining requirements. The specific structure of the cutting tool 2 can refer to the design of cutting tools 2 with corresponding functions in the prior art.

[0080] The support mechanism 3 includes a support component 31 for supporting the workpiece and a lifting assembly 32 for driving the support component 31 to rise and fall. The support mechanism 3 provides support to the workpiece to prevent deflection deformation. The number of support mechanisms 3 can be set as needed, such as multiple support mechanisms 3 spaced apart along the axial direction. In this application, "multiple" refers to two or more. It is understood that "axial direction" in this application refers to the axial direction of the machine tool body 1, which is the extension direction of the machine tool guideway when the machine tool body 1 has a machine tool guideway, and is also the axial direction of the spindle chuck 11. By having multiple support mechanisms 3 act on the workpiece, deflection deformation of the workpiece can be better prevented. For example, the fixed end of the lifting assembly 32 can be located on the machine tool body 1, such as the bed of the machine tool body 1. The support component 31 is located on the movable end of the lifting assembly 32 so as to rise and fall under the drive of the movable end.

[0081] The workpiece driving mechanism 4 includes a drive mechanism chuck 41 and an axis shifting assembly 42. The axis shifting assembly 42 drives the drive mechanism chuck 41 to move axially closer to and / or further away from the spindle chuck 11. The drive mechanism chuck 41 clamps the workpiece and drives the workpiece to move axially relative to the tool 2. The working drive mechanism drives the workpiece to move axially. The axis shifting assembly 42 serves as its power mechanism and guide mechanism, while the drive mechanism chuck 41 can fix the workpiece. Thus, under the drive of the axis shifting assembly 42, the drive mechanism chuck 41 can drive the workpiece to move axially, thereby changing the axial position of the tool 2 relative to the workpiece and achieving continuous machining at different positions. For example, the drive mechanism chuck 41 is a power chuck. Understandably, the axis shifting assembly 42 can drive the drive mechanism chuck 41 to move axially closer to and / or away from the spindle chuck 11. In one example, the axis shifting assembly 42 can drive the drive mechanism chuck 41 to move axially closer to the spindle chuck 11 to achieve push-mode machining, that is, push the workpiece towards the spindle chuck 11 so that the tool 2 can machine the workpiece.

[0082] In another example, the axis shifting assembly 42 can drive the drive mechanism chuck 41 to move axially away from the spindle chuck 11 to realize the pull mode machining, that is, to pull the workpiece away from the spindle chuck 11 so that the tool 2 can machine the workpiece.

[0083] In another example, the axis shifting component 42 can both drive the drive mechanism chuck 41 to move axially closer to the spindle chuck 11 and drive the drive mechanism chuck 41 to move axially away from the spindle chuck 11, thus enabling both push-mode and pull-mode machining. The machining mode can be selected as needed during specific operations.

[0084] When machining extra-long workpieces using the machine tool processing system provided by this utility model, the workpiece is clamped by the spindle chuck 11 and the drive mechanism chuck 41. The drive mechanism chuck 41 can fix the workpiece to drive its movement. The spindle chuck 11 can support the workpiece and is axially movable in cooperation with it. The drive mechanism chuck 41 can move axially from a position close to the spindle chuck 11 to a position away from it, thereby driving the workpiece to move axially relative to the tool 2, thus achieving machining at different positions along the axial direction of the workpiece. Alternatively, the drive mechanism chuck 41 can also move axially from a position away from the spindle chuck 11 to a position close to it, thereby driving the workpiece to move axially relative to the tool 2, thus achieving machining at different positions along the axial direction of the workpiece. During the above machining process, the lifting assembly 32 of the support mechanism 3 can drive the support component 31 to move up and down to support the workpiece and prevent it from bending or deforming.

[0085] In summary, the machine tool processing system provided in this application can drive the workpiece axially through the workpiece drive mechanism 4. Therefore, it can use a pull-in mode to pull the workpiece in from one end of the spindle chuck 11 for processing, or a push-in mode to push the workpiece from the far end to the spindle chuck 11 for processing. It is evident that this machine tool processing system, when processing ultra-long parts, does not require multiple clamping operations, nor does it require mid-process turning or segmented splicing; processing can be completed in a single clamping operation, effectively improving the processing efficiency of ultra-long parts.

[0086] Meanwhile, the support mechanism 3 provides support for the workpiece, and combined with the support of the drive mechanism chuck 41 and the spindle chuck 11, the multi-stage clamping can prevent workpiece deflection and deformation, thus achieving stable processing of the entire workpiece.

[0087] In some embodiments, please refer to Figure 3 and Figure 4 The workpiece driving mechanism 4 includes a chuck support 43, a spindle seat 44, and a rotary drive device 45. The chuck support 43 is located at the output end of the axis shifting assembly 42; the spindle seat 44 is rotatably mounted on the chuck support 43, and the drive mechanism chuck 41 is coaxially mounted on the spindle seat 44; the rotary drive device 45 drives the spindle seat 44 to rotate. The axial movement of the drive mechanism chuck 41 can drive the chuck support 43 via the axis shifting assembly 42, which in turn drives the spindle seat 44 on the chuck support 43, and the spindle seat 44 drives the drive mechanism chuck 41 on it to move axially. Furthermore, in this embodiment, the drive mechanism chuck 41 can also rotate under the drive of the rotary drive device 45; that is, the rotary drive device 45 drives the spindle seat 44 to rotate, and the spindle seat 44 drives the drive mechanism chuck 41 on it to rotate, thereby driving the workpiece to rotate. With this configuration, the machine tool processing system can drive the workpiece to rotate, thus meeting the corresponding processing requirements. For example, the rotary drive device 45 is a rotary motor.

[0088] In some embodiments, the axis shifting assembly 42 includes a module guide rail 421, a module slider 422, and a module motor 423. The module slider 422 is slidably connected to the module guide rail 421, and a chuck bracket 43 is bolted to the module slider 422. The module motor 423 drives the module slider 422 to move axially along the module guide rail 421. The module slider 422 is the output end of the axis shifting assembly 42. Exemplarily, the chuck bracket 43 includes multiple bracket plates connected by bolts. Each bracket plate includes two side plates, a bottom plate, and a back plate. The chuck bracket 43 remains parallel to the ground or the machine tool guide rail of the machine tool body 1. A spindle seat 44 is mounted on the chuck bracket 43. The spindle seat 44 is connected to a rotary motor via a belt. The rotary motor drives the spindle seat 44 to rotate, thereby driving the drive mechanism chuck 41 to rotate, thus achieving the rotation of an extra-long workpiece. The module motor 423, used to drive the module slider 422 to move relative to the module guide rail 421, may be mounted on the back plate.

[0089] In some embodiments, the workpiece driving mechanism 4 includes an auxiliary support assembly 46 disposed at the bottom of the chuck bracket 43. The auxiliary support assembly 46 is used to abut against the machine tool body 1 and move axially along the machine tool body 1. Specifically, the auxiliary support assembly 46 is disposed below the base plate of the chuck bracket 43. The auxiliary support assembly 46 is used to support the entire workpiece driving mechanism 4 and prevent the workpiece driving mechanism 4 from falling due to its own weight. When the workpiece driving mechanism 4 moves above the machine tool body 1 under the drive of the axis shift assembly 42, such as when it moves above the machine tool guide plane, the auxiliary support assembly 46 abuts against the machine tool body 1. Therefore, under the support of the machine tool body 1, the auxiliary support assembly 46 can reliably provide support force to the workpiece, prevent workpiece deformation, and ensure high-precision operation of the workpiece during processing. In other embodiments, the auxiliary support assembly 46 is disposed at the output end of the axis shift assembly 42 through the chuck bracket 43. If the force provided by the output end of the axis shift assembly 42 meets the requirements, the auxiliary support assembly 46 may not be provided.

[0090] In some embodiments, please refer to Figure 4 The auxiliary support assembly 46 includes an abutment 461, an elastic element 462, and a first connecting element 463. The abutment 461 is used for rolling contact with the machine tool body 1; the elastic element 462 is disposed on the chuck bracket 43; the first connecting element 463 is disposed on the abutment 461 and connected to the elastic element 462, and is used to adjust the height of the abutment 461 to abut against the machine tool body 1. Utilizing the extensibility of the elastic element 462, the workpiece drive mechanism 4 can dynamically adapt to the guide rail plane, ensuring stability during processing. The first connecting element 463 connects the abutment 461 to the elastic element 462, and also adjusts the height of the abutment 461 to adapt to support on the machine tool body 1, specifically on the machine tool guide rail plane. The auxiliary support assembly 46 contacts the machine tool body 1 through the abutment 461, reducing friction between the workpiece drive mechanism 4 and the machine tool body 1 when the workpiece drive mechanism 4 moves axially relative to the machine tool body 1. For example, the abutment 461 is a bullseye bearing. The elastic element 462 is a nitrogen spring. The first connecting element 463 is a screw and is threadedly connected to the elastic element 462 to achieve continuous adjustment of the height of the abutment element 461 within a certain range.

[0091] In some embodiments, the workpiece driving mechanism 4 includes a main support 47 and a secondary support 48. At least two main supports 47 are provided, each located on one side of the machine tool guide rail, and a shaft shifting assembly 42 is connected between the two main supports 47. Exemplarily, the main supports 47 are fixed to the ground where the machine tool body 1 is placed by bolts. The end face of the shaft shifting assembly 42 mounted on the main support 47 is parallel to the machine tool guide rail, such as the top surface of the main support 47 being parallel to the machine tool guide rail, to ensure the straightness of the workpiece being pulled or pushed during processing. The secondary support 48 is installed between the two main supports 47 to connect them and ensure the parallelism and consistency between the main supports 47.

[0092] In some embodiments, the workpiece drive mechanism 4 further includes an inclined bracket 49, the top end of which is disposed on the main bracket 47, and the bottom end is inclined away from the main bracket 47. Exemplarily, the inclined bracket 49 is fixed to the ground on which the machine tool body 1 is placed by bolts. Considering the weight of the workpiece drive mechanism 4 mounted on the main bracket 47, the inclined bracket 49 is added to ensure its installation stability. In the case where the axis shift assembly 42 includes a module guide rail 421, the module guide rail 421 is disposed above the two main brackets 47, and to ensure consistent installation, the plane of the module guide rail 421 remains parallel to the side surface of the main bracket 47.

[0093] In some embodiments, please refer to Figure 5 The lifting assembly 32 includes a mounting frame 321, a second connecting member 322, and a movable plate 323. The mounting frame 321 has a threaded hole 3211; the second connecting member 322 passes through the threaded hole 3211 and is threaded into it; the movable plate 323 is located at the top of the second connecting member 322, and a support member 31 is located on the movable plate 323. The mounting frame 321 can be fixed to the ground or to the machine tool body 1. The second connecting member 322 is threaded into the mounting frame 321. When the second connecting member 322 rotates within the threaded hole 3211, it can simultaneously rise and fall relative to the mounting frame 321, thereby driving the movable plate 323 at the top of the second connecting member 322 to rise and fall accordingly, and the support member 31 located on the movable plate 323 to rise and fall accordingly. The lifting assembly 32, with the above configuration, has a simple structure and precise lifting control. The second connecting member 322 can specifically be a lead screw. For example, the second connecting member 322 can be connected to the output end of a motor through a gear transmission assembly to rotate under the drive of the motor.

[0094] In some embodiments, the mounting bracket 321 is provided with a guide hole 324, and the lifting assembly 32 further includes a guide rod 325 passing through the guide hole 324, with the top end of the guide rod 325 located on the movable plate 323. When the second connecting member 322 drives the movable plate 323 to rise or fall, the movable plate 323 drives the guide rod 325 to rise or fall. Since the guide rod 325 is located within the guide hole 324, it rises or falls along the guide hole 324. Thus, the cooperation between the guide rod 325 and the guide hole 324 provides a good guiding effect for the rise and fall of the movable plate 323.

[0095] For example, the mounting bracket 321 includes a base 3212, a fixing plate 3213, and a guide block 3214. The base 3212 can be fixed to the ground with bolts. Three fixing plates 3213 can be provided, two of which are symmetrically arranged and vertically fixed to the upper surface of the base 3212, and the third fixing plate 3213 is horizontally installed between the two vertically installed fixing plates 3213. A threaded hole 3211 is provided on the horizontally installed fixing plate 3213. One end of the second connecting member 322 is fixedly connected to the moving plate 323, and the other end is screwed into the threaded hole 3211. The moving plate 323 can be moved up and down by rotating the second connecting member 322. Guide blocks 3214 are provided at the four corners of the mounting bracket 321 corresponding to the movable plate 323. Specifically, guide blocks 3214 are provided at the top corners of the vertically mounted fixed plate 3213 and at the four corners of the horizontally mounted fixed plate 3213. Each guide block 3214 has a guide hole 324. Guide rods 325 are connected to the four corners of the movable plate 323, and each guide rod 325 passes through the corresponding guide hole 324 to slide along the guide hole 324. With the above configuration, the four corners of the movable plate 323 are used as auxiliary points for movement, making the lifting and lowering of the movable plate 323 more stable and reliable.

[0096] In some embodiments, the support member 31 includes an adjusting clamp for clamping a workpiece and capable of adjusting the clamping force applied to the workpiece. Exemplarily, the adjusting clamp includes two opposing jaws for clamping the workpiece, the jaws being hydraulically driven and the clamping force adjustable. At least one of a first temperature sensor 34, a first force sensor 33, and a first cooling nozzle 35 may be disposed on the inner surface of the workpiece, and the clamping force of the adjusting clamp is dynamically adjusted in real time based on the value fed back by the first force sensor 33 to suppress workpiece movement. The first cooling nozzle 35 can adjust its flow rate and pressure in real time based on the temperature value fed back by the first temperature sensor 34, thereby dynamically adjusting the processing environment of the workpiece to achieve the optimal processing state of the workpiece.

[0097] In some embodiments, the cutting tool 2 is movably mounted on the machine tool body 1 along the axial direction, and the machine tool body 1 is capable of driving the cutting tool 2 to move axially. Exemplarily, the machine tool body 1 includes a bed, a machine tool guide rail mounted on the bed, a guide rail slider mounted on the machine tool guide rail, and a driving component for driving the guide rail slider to move. The cutting tool 2 is mounted on the guide rail slider, and the driving component drives the guide rail slider to move along the machine tool guide rail, i.e., axially, thereby causing the cutting tool 2 to move axially accordingly. With the above configuration, in addition to processing in pull-out mode and / or push-out mode, this machine tool processing system can also perform turning-out processing to meet different processing conditions.

[0098] For example, when machining a non-extra-long workpiece, the workpiece is clamped by the spindle chuck 11 and the drive mechanism chuck 41, and then the workpiece is machined by controlling the tool 2 to move axially.

[0099] In some embodiments, please refer to Figure 6 The cutting tool 2 includes a tool body 21, on which at least one of a second force sensor 22, a second temperature sensor 23, a vibration sensor 24, and a second cooling nozzle 25 is provided. The second force sensor 22 and the vibration sensor 24 are used to monitor the machining status of the cutting tool 2 and can provide feedback to the support mechanism 3 for real-time dynamic adjustment. The second temperature sensor 23 is used to monitor the temperature at the machining point of the cutting tool 2. The flow rate of the second cooling nozzle 25 is adjusted in real time according to the feedback value of the second temperature sensor 23 to prevent the temperature of the workpiece machining area from becoming too high and damaging the workpiece.

[0100] In some embodiments, please refer to Figures 1-2 The machine tool processing system also includes a clamping mechanism 5 for clamping the workpiece. The clamping mechanism 5 is located on the machine tool body 1 and can move axially synchronously with the cutting tool 2. The clamping mechanism 5 clamps the workpiece to suppress its movement. It is understood that when the workpiece drive mechanism 4 drives the workpiece to move axially, the clamping force of the clamping mechanism 5 will not fix the workpiece axially; that is, the workpiece can move axially relative to the clamping mechanism 5.

[0101] In some embodiments, please refer to Figure 7The clamping mechanism 5 is installed in the machining area of ​​the machine tool body 1, specifically behind the cutting tool 2, and can move together with the cutting tool 2. The clamping mechanism 5 includes a clamping servo motor 51, a clamping guide rail 52, two clamping sliders 53, and clamping blocks 54 respectively mounted on the clamping sliders 53. The two clamping sliders 53 are symmetrically arranged on the clamping guide rail 52. The clamping servo motor 51 is connected to the clamping sliders 53, driving the clamping sliders 53 to move on the clamping guide rail 52. Specifically, the clamping servo motor 51 is a double-acting servo motor, ensuring that the two clamping sliders 53 move towards each other on the clamping guide rail 52, and that the distance they move is consistent. Clamping blocks 54 are respectively mounted on the two clamping sliders 53 to move with the clamping sliders 53, thereby clamping the workpiece. The clamping blocks 54 are designed according to the shape of the workpiece. Specifically, the clamping blocks 54 can be fixed to the clamping sliders 53 via slider connecting blocks 55. For example, each clamping slider 53 is equipped with a clamping support 56, and two clamping blocks 54 are mounted on the clamping support 56 to form two sets of clamping action on the workpiece. For example, each clamping block 54 is provided with a third force sensor 57, which is used to clamp the workpiece in real time according to the force feedback value to suppress the workpiece's jump. A third cooling nozzle 58 may be provided on the clamping block 54 to cool down the workpiece clamping area.

[0102] In some embodiments, please refer to Figures 1-2 The machine tool processing system also includes an auxiliary mechanism 6, located on the machine tool body 1. The auxiliary mechanism 6 and the cutting tool 2 act on the workpiece from opposite sides, and the auxiliary mechanism 6 provides a balancing force to the workpiece. It is understood that the auxiliary mechanism 6 can be positioned opposite the cutting tool 2, located on opposite sides of the workpiece, thus allowing forces to be applied to the workpiece from both sides. Specifically, the cutting tool 2 applies a load to the workpiece to achieve surface strengthening and other processing. The auxiliary mechanism 6 provides a balancing force to the workpiece to ensure force balance, prevent workpiece runout during processing, and prevent bending deformation of the workpiece due to the force applied by the cutting tool 2. For example, the magnitude of the supporting force of the auxiliary mechanism 6 is dynamically adjusted according to the magnitude of the loading force of the cutting tool 2.

[0103] In some embodiments, please refer to Figure 8An auxiliary mechanism 6 is installed opposite the cutting tool 2 to counteract the force exerted by the cutting tool 2 on the workpiece. The auxiliary mechanism 6 includes an auxiliary body 61 and auxiliary claws 62. At least one of a fourth force sensor 63, a fourth temperature sensor 64, and a fourth cooling nozzle 65 can be installed on the inner surface of the workpiece facing the auxiliary claws 62. The two auxiliary claws 62 are installed one after the other on the auxiliary body 61. The auxiliary claws 62 can dynamically adjust the clamping force in real time according to the feedback value of the fourth force sensor 63 to ensure stable clamping of the workpiece, prevent workpiece jitter during processing, and prevent the workpiece from bending or deforming due to the force exerted by the cutting tool 2. The temperature of the workpiece is detected by the fourth temperature sensor 64. When the workpiece temperature rises due to processing, the controller 9 can activate the alarm device and automatically adjust the flow rate of the fourth cooling nozzle 65 to achieve cooling.

[0104] In some embodiments, please refer to Figures 1-2 The machine tool processing system also includes a feeding mechanism 7, located at the end of the machine tool body 1 away from the workpiece driving mechanism 4, for feeding workpieces into the machine tool body 1. The feeding structure enables automatic feeding of workpieces into the machine tool body 1, improving processing efficiency.

[0105] In some embodiments, please refer to Figure 9 The feeding mechanism 7 includes a feeding table support 71, a feeding table lifting structure 72, a movable slide bar 73, a feeding support table 74, a feeding moving table 75, a feeding push rod 76, and an operation panel 77. The feeding table lifting structure 72 is movably and rotatably mounted on the movable slide bar 73, meaning that the feeding table lifting structure 72 can rise and fall along the movable slide bar 73 and can rotate relative to the movable slide bar 73 to flip its workpiece onto the feeding support table 74. The movable slide bar 73 is fixedly mounted on the feeding table support 71, and the feeding table lifting structure 72 is telescopic, extending forward to the bottom of the extra-long workpiece and then lifting the workpiece upward. The upper part of the feeding mechanism 7 is the feeding support table 74, and the feeding moving table 75 is located inside the feeding support table 74. The feeding moving table 75 moves the workpiece step by step from the slot of the feeding support table 74 to the feeding push rod 76 through the up and down reciprocating motion. The feeding push rod 76 is used to push the extra-long workpiece into the spindle hole of the machine bed, waiting for the extra-long workpiece to be processed.

[0106] In some embodiments, please refer to Figures 1-2 The machine tool processing system also includes an inspection platform 8, located at the end of the workpiece drive mechanism 4 furthest from the machine tool body 1, for inspecting the workpieces processed by the cutting tool 2. The inspection platform 8 allows for on-site inspection of the workpieces, ensuring workpiece processing quality and improving processing efficiency.

[0107] In some embodiments, please refer to Figure 10The inspection platform 8 includes a platform 81 and a V-shaped support block 82 located on the platform 81. The processed workpiece can be placed on this inspection platform 8 for post-processing inspection.

[0108] In some embodiments, the machine tool processing system includes a controller 9, which is connected to a feeding mechanism 7, a workpiece driving mechanism 4, a support mechanism 3, a clamping mechanism 5, and an auxiliary mechanism 6. The control program controls the feeding mechanism 7 to feed materials intermittently in a step-by-step feeding mode. Then, the support mechanism 3, the clamping mechanism 5, and the auxiliary mechanism 6 dynamically adjust the clamping force according to the monitored real-time data, thereby ensuring that the processing process is in a high-precision state. Finally, the inspection platform 8 completes the inspection of the processed workpiece, realizing the intelligent processing of ultra-long workpieces.

[0109] For example, when this machine tool processing system is working, extra-long workpieces are placed together in the processing area. When processing is required, the feeding mechanism 7 selects one workpiece from the pile and feeds it into the machine tool body 1. Then, the auxiliary mechanism 6, clamping mechanism 5, and support mechanism 3 adaptively clamp the workpiece. Finally, the drive mechanism chuck 41 of the workpiece drive mechanism 4 clamps the tail end of the workpiece, the cutting tool 2 contacts the workpiece processing surface, and the axis shifting component 42 drives the drive mechanism chuck 41 to move to achieve surface treatment of the extra-long workpiece under pulling and pushing conditions. The processed extra-long workpiece is sent to the inspection platform 8 for inspection. This machine tool processing system can process extra-long workpieces, achieve multi-directional dynamic clamping of the workpiece, prevent bending and deformation of the workpiece during processing, suppress workpiece jumping and processing vibration, and ensure uniform force during processing.

[0110] The following is an example of a processing method.

[0111] Extra-long workpieces (such as 4-meter-long workpieces) are stacked in the processing area. The feeding mechanism 7 is used to lift and transport the extra-long workpieces to a position coaxial with the spindle hole of the machine tool body 1. Then, the workpieces are pushed to the machine tool processing area by the feeding push rod 76 of the feeding mechanism 7.

[0112] When machining the workpiece with tool 2 and a pressure of 200KG, the following three machining modes can be selected according to the machining requirements:

[0113] 1) Select the tool feed mode, clamp the workpiece with the spindle chuck 11 (0.7MPa air pressure) and the drive mechanism chuck 41 (0.7MPa air pressure), and use the double chuck method to achieve clamping, which can effectively increase the machining length. Retract the support components 31 of the two support mechanisms 3, clamp the workpiece with the clamping mechanism 5 (1N.M), and then clamp the workpiece with the auxiliary mechanism 6 (2.2MPa hydraulic pressure). The tool 2 contacts the workpiece surface, and the tool feed is achieved through the machine tool body 1.

[0114] 2) Select the material pulling mode, move the workpiece drive mechanism 4 to the vicinity of the clamping mechanism 5, and then clamp the workpiece with the spindle chuck 11 (0.3MPa air pressure, using servo block clamping) and drive mechanism chuck 41 (0.7MPa air pressure). The clamping mechanism 5 clamps the workpiece (1N.M), and the auxiliary mechanism 6 clamps the workpiece (2.2MPa hydraulic pressure). Use the controller 9 to set the processing length (3.8m) to realize that the axis shifting component 42 drives the drive mechanism chuck 41 to move 3.8m away from the spindle chuck 11. During the movement, the controller 9 will raise the support components 31 of each support mechanism 3 in turn according to the real-time situation to ensure the stability of the processing process and suppress the bending of the workpiece during the processing.

[0115] 3) Select the push mode, move the workpiece drive mechanism 4 to the farthest end of the workpiece to be processed, and then the spindle chuck 11 (0.3MPa air pressure, using servo block clamping) and drive mechanism chuck 41 (0.7MPa air pressure) clamp the workpiece, the clamping mechanism 5 clamps the workpiece (1N.M), and the auxiliary mechanism 6 clamps the workpiece (2.2MPa hydraulic pressure). Use the controller 9 to set the processing length (3.8m) to realize that the axis shift component 42 drives the drive mechanism chuck 41 to move 3.8m towards the spindle chuck 11 end. During the movement, the controller 9 will raise the support components 31 of each support mechanism 3 in turn according to the real-time situation to ensure the stability of the processing process and suppress the bending of the workpiece during the processing.

[0116] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0117] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A machine tool processing system, characterized in that, include: The machine tool body (1) is equipped with a spindle chuck (11). Cutting tool (2), located on the machine tool body (1), is used to process workpieces; The support mechanism (3) includes a support component (31) for supporting the workpiece and a lifting assembly (32) for driving the support component (31) to rise and fall. The workpiece driving mechanism (4) includes a driving mechanism chuck (41) and an axis shifting assembly (42). The axis shifting assembly (42) can drive the driving mechanism chuck (41) to move axially to approach and / or move away from the spindle chuck (11). The driving mechanism chuck (41) is used to clamp the workpiece and drive the workpiece to move axially relative to the tool (2).

2. The machine tool processing system according to claim 1, characterized in that, The workpiece driving mechanism (4) includes: A chuck bracket (43) is located at the output end of the shaft shift assembly (42); The spindle seat (44) is rotatably mounted on the chuck bracket (43), and the drive mechanism chuck (41) is coaxially mounted on the spindle seat (44). A rotary drive device (45) is used to drive the spindle seat (44) to rotate.

3. The machine tool processing system according to claim 2, characterized in that, The workpiece driving mechanism (4) includes an auxiliary support assembly (46) located at the bottom of the chuck bracket (43). The auxiliary support assembly (46) is used to abut against the machine tool body (1) and move along the axial direction of the machine tool body (1).

4. The machine tool processing system according to claim 3, characterized in that, The auxiliary support component (46) includes: Abutting member (461) is used for rolling contact with the machine tool body (1); An elastic element (462) is provided on the chuck bracket (43); A first connecting member (463) is disposed on the abutting member (461) and connected to the elastic member (462) for adjusting the height of the abutting member (461) to abut against the machine tool body (1).

5. The machine tool processing system according to any one of claims 1-4, characterized in that, The lifting assembly (32) includes: Mounting bracket (321), wherein the mounting bracket (321) is provided with threaded hole (3211); The second connector (322) is inserted into the threaded hole (3211) and threadedly engaged with the threaded hole (3211). When the second connector (322) rotates, it can rise and fall relative to the mounting bracket (321). A movable plate (323) is disposed at the top of the second connector (322), and the supporting component (31) is disposed on the movable plate (323).

6. The machine tool processing system according to claim 5, characterized in that, The mounting bracket (321) is provided with a guide hole (324), and the lifting assembly (32) further includes a guide rod (325) passing through the guide hole (324), with the top end of the guide rod (325) located on the moving plate (323).

7. The machine tool processing system according to claim 5, characterized in that, The support component (31) includes an adjusting clamp for clamping the workpiece and capable of adjusting the clamping force applied to the workpiece.

8. The machine tool processing system according to any one of claims 1-4, characterized in that, The cutting tool (2) is movably disposed on the machine tool body (1) along the axial direction, and the machine tool body (1) is capable of driving the cutting tool (2) to move axially.

9. The machine tool processing system according to any one of claims 1-4, characterized in that, Also includes: A clamping mechanism (5) is used to clamp the workpiece. The clamping mechanism (5) is located on the machine tool body (1) and can move axially synchronously with the cutting tool (2). And / or, An auxiliary mechanism (6) is provided on the machine tool body (1). The auxiliary mechanism (6) and the cutting tool (2) are used to act on the workpiece from opposite sides of the workpiece, and the auxiliary mechanism (6) can provide a balancing force to the workpiece.

10. The machine tool processing system according to any one of claims 1-4, characterized in that, Also includes: The feeding mechanism (7) is located at one end of the machine tool body (1) away from the workpiece driving mechanism (4) and is used to feed the workpiece into the machine tool body (1). And / or, The inspection platform (8) is located at one end of the workpiece drive mechanism (4) away from the machine tool body (1) and is used to inspect the workpiece processed by the cutting tool (2).

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