Numerically-controlled machine tool for machining automobile aluminum alloy parts

Abstract

The invention relates to the technical field, in particular to a numerical control machine tool for machining automobile aluminum alloy parts, which comprises a machine tool body, a spindle box is arranged at one end of a workbench of the machine tool body, a sliding tool rest is arranged at the other end of the workbench, and the numerical control machine tool further comprises a rotating disc, at least three charging grooves are formed in the outer ring wall of the rotating disc at equal intervals, the charging grooves are in a U shape, flaring grooves are further formed in the positions, located at the charging grooves, of the front face of the rotating disc, and major-arc-shaped rotating bases are rotationally arranged in the flaring grooves. Through cooperation of the loading mechanism and the rotating disc, the workpiece can automatically fall into the loading groove, the clamping mechanism on the rotating disc can automatically clamp and fix the workpiece, and the rotating driving mechanism can control the clamping ring and the workpiece to rotate around the center axis of the clamping ring and the workpiece, so that the manual intervention degree can be reduced in the loading link, and the loading efficiency is improved. The labor intensity of workers can be relieved, and the machining efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool for machining automobile aluminum alloy parts. BACKGROUND

[0002] With the rapid development of the automobile manufacturing industry, lightweight design has become the core direction to improve vehicle energy efficiency and handling performance, and aluminum alloy is widely used in the manufacture of key automobile parts such as engine cylinder blocks, transmission housings, and suspension system components due to its high strength, low density, and excellent corrosion resistance. Among them, cylindrical aluminum alloy workpieces, as the basic components of the transmission system and steering system, directly affect the vehicle assembly quality and production line output efficiency. At present, the turning of the cylindrical aluminum alloy workpiece, the end face and the stepped structure mainly relies on traditional numerical control machine tools. Under the existing processing mode, the operator needs to manually align the one end of the cylindrical aluminum alloy workpiece to be processed with the center hole of the spindle chuck, and drive the claw to tighten to realize the fixation of the workpiece by rotating the chuck wrench; then, the spindle box drives the chuck and the workpiece to rotate at high speed, and the control system drives the sliding tool holder to move along the guide rail according to the preset program, so that the tool and the workpiece are in contact and the turning is completed; after processing, the spindle stops rotating, the operator manually loosens the claw again, takes down the processed workpiece and places it on the rack, and then repeats the above steps for clamping and processing the next workpiece. However, this processing method relying on manual loading and unloading gradually exposes significant limitations in actual production. On the one hand, the automobile parts production line usually needs to realize mass production and continuous production, and the operator needs to complete hundreds or even thousands of workpiece clamping and dismounting operations in a single workday, and frequent handling, alignment and clamping operations will cause the labor intensity of the operator to increase sharply; on the other hand, the manual loading and unloading process will inevitably cause the machine tool to be idle, and after the workpiece turning is completed, the spindle needs to stop rotating to wait for the operator to take down the workpiece, and after the new workpiece is clamped and fixed and the position is confirmed to be correct, the machine tool can be restarted to enter the next processing cycle. Therefore, how to optimize the loading and unloading process of the cylindrical aluminum alloy workpiece, reduce manual intervention, and shorten the waiting time for changing materials has become a key technical problem to improve the machining efficiency of automobile aluminum alloy parts and reduce labor intensity. Therefore, we propose a numerical control machine tool for machining automobile aluminum alloy parts. SUMMARY

[0003] The present application aims to provide a numerical control machine tool for machining automobile aluminum alloy parts to solve the problems raised in the background.

[0004] The present application is realized by the following technical solutions: A numerical control machine tool for machining of automobile aluminum alloy parts, comprising a machine tool body, one end of the workbench of the machine tool body is provided with a spindle box, the other end of the workbench is provided with a sliding tool holder, further comprising: A rotating disc is coaxially fixedly connected with the output shaft of the spindle box, at least three loading grooves are evenly spaced on the outer ring wall of the rotating disc, the loading grooves are U-shaped, a flared groove is further formed on the front surface of the rotating disc and located at the loading groove, and a rotation seat in the shape of an arc of a circle is rotatably arranged in the flared groove; A loading mechanism is arranged obliquely above the rotating disc, the loading mechanism comprises a mounting seat and a loading disc, a plurality of storage grooves are uniformly and spacedly formed on the outer peripheral wall of the loading disc, when the storage grooves and the loading grooves are aligned and distributed, the workpieces in the storage grooves can roll into the corresponding loading grooves; A clamping mechanism corresponding to the loading grooves, the clamping mechanism comprises a clamping ring, the clamping ring is coaxially arranged with the corresponding rotation seat, the clamping ring is a hollow structure, the clamping ring is provided with a clamping assembly in the inside, the clamping assembly comprises at least three clamping heads, one end of the clamping head extends into the inner ring of the clamping ring, and the clamping head is slidably connected with the clamping ring along the radial direction of the clamping ring; A rotation driving mechanism is arranged on the workbench of the machine tool body, the rotation driving mechanism is located on one side of the rotating disc, and the rotation driving mechanism is used for driving any clamping ring to rotate; Wherein, the clamping mechanism and the corresponding rotation seat are slidably connected along the axial direction of the rotating disc, the clamping mechanism further comprises a linear driving assembly for driving the clamping ring to slide along the axial direction, when the clamping ring approaches the rotation seat, the plurality of clamping heads slide towards the center of the clamping ring.

[0005] Optionally, the mounting seat has an arc-shaped blocking wall located on the side of the loading disc, when the workpiece on the loading disc rotates to face the arc-shaped blocking wall region, the arc-shaped blocking wall can prevent the workpiece from falling off.

[0006] Optionally, a stabilizing sleeve is arranged on the back surface of the rotating disc and located at the position of the loading groove, the stabilizing sleeve is in the shape of U and matches the contour of the loading groove.

[0007] Optionally, the width of the notch of the rotation seat is not less than the opening width of the loading groove, a fitting ring in the shape of an arc of a circle is fixedly arranged in the flared groove, the fitting ring is arranged outside the rotation seat, a plurality of rollers are rotatably arranged on the fitting ring at uniform intervals, and the rollers are in rolling contact with the outer ring wall of the rotation seat.

[0008] Optionally, three guide rods are equidistantly arranged on the front surface of the rotation seat along the circumferential direction, and the three guide rods are movably arranged through the corresponding clamping rings.

[0009] Optionally, the material clamping assembly comprises a driving ring coaxially arranged inside the material clamping ring and rotationally connected with the inner ring of the material clamping ring, and a helical tooth is protruded on the upper surface of the driving ring and threadedly matched with the bottom surface of the chuck. The two sides of the chuck are slidably provided with a baffle plate fixedly connected with the inner wall of the material clamping ring.

[0010] Optionally, the material clamping assembly further comprises a driving gear ring located inside the material clamping ring and outside the driving ring, the driving gear ring is rotationally connected with the inner wall of the material clamping ring, and a driven gear ring is fixedly sleeved on the outer peripheral wall of the driving ring, and the driven gear ring and the driving gear ring are engaged. One of the guide rods passes through the inner side of the driving gear ring, a helical groove is formed on the outer surface of the guide rod, and a guide protrusion is protruded on the inner ring of the driving gear ring and movably embedded in the helical groove.

[0011] Optionally, the linear driving assembly comprises a linear module and a retaining sleeve, the linear module is fixedly installed on the front surface of the rotating disc and distributed along the axial direction of the rotating disc, and the retaining sleeve is rotationally sleeved on the outside of the material clamping ring and fixedly connected with the movable end of the linear module.

[0012] Optionally, the rotary driving mechanism comprises a driving motor and a driving gear transmissionally connected with the output shaft of the driving motor, and the outside of the material clamping ring is fixedly sleeved with a driving gear ring; when the material clamping ring moves to a position directly opposite to the rotary driving mechanism, the driving gear can be engaged with the corresponding driving gear ring.

[0013] Optionally, the back surface of the mounting seat is provided with a loading servo motor, and the output shaft of the loading servo motor is coaxially connected with the loading disc.

[0014] Compared with the prior art, the present application provides a numerical control machine tool for machining automobile aluminum alloy parts, which has the following beneficial effects: 1. The workpiece can be automatically dropped into the loading groove through the cooperation of the loading mechanism and the rotating disc, the material clamping mechanism on the rotating disc can automatically clamp and fix the workpiece, and the rotary driving mechanism can control the rotation of the material clamping ring and the workpiece around the center axis thereof, so that the present application can reduce the degree of manual intervention in the loading process, which not only helps to reduce the labor intensity of workers, but also effectively improves the processing efficiency; 2. The optimal arc-shaped rotary seat and the assembly ring can not only realize the rotation of the material clamping ring, but also avoid hindering the workpiece from entering the loading groove, so as to facilitate the automatic rolling of the workpiece into the loading groove; 3. The radial movement of the plurality of chucks can be automatically realized through the forward and backward movement of the material clamping ring, so that the automatic clamping process of the workpiece can be realized without manual adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the rotating disk and loading mechanism of the present invention; Figure 3 This is a schematic diagram of the rotating disk and clamping mechanism of the present invention; Figure 4 This is a schematic diagram of the rotating disk structure of the present invention; Figure 5 This is a schematic diagram of the rotating seat and assembly ring structure of the present invention; Figure 6 This is a schematic diagram of the loading mechanism of the present invention; Figure 7 This is a top view of the inside of the clamping ring of the present invention; Figure 8 This is a cross-sectional view of the clamping ring structure of the present invention; Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0016] In the diagram: 100, machine tool body; 200, spindle box; 300, sliding tool post; 400, rotating disk; 401, loading groove; 402, flared groove; 403, rotary seat; 404, assembly ring; 405, roller; 406, stabilizing sleeve; 500, loading mechanism; 501, mounting base; 502, loading tray; 503, storage trough; 504, servo motor; 505, arc-shaped baffle; 600, clamp. Material handling mechanism; 601, clamping ring; 602, guide rod; 603, chuck; 604, drive ring; 605, helical gear; 606, side plate; 607, driving gear ring; 608, driven gear ring; 609, helical groove; 610, guide protrusion; 611, linear module; 612, retaining sleeve; 613, drive gear ring; 700, rotary drive mechanism; 701, drive motor; 702, drive gear. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 - Figure 9The utility model provides a numerical control machine tool for automobile aluminum alloy piece processing, including machine tool body 100, one end of the workbench of machine tool body 100 is equipped with main shaft box 200, and the other end of the workbench is equipped with sliding tool rest 300, specifically, main shaft box 200 has motor and transmission assembly inside, and the motor controls the rotation of main shaft through transmission assembly, and sliding tool rest 300 can slide left and right, and carries the cutter to approach or be away from main shaft box 200 to realize turning processing.

[0019] The embodiment also includes a rotating disc 400, a loading mechanism 500 and a material clamping mechanism 600, wherein the rotating disc 400 is coaxially fixedly connected with the output shaft of the main shaft box 200, at least three loading grooves 401 are equidistantly formed in the outer ring wall of the rotating disc 400, the loading grooves 401 are in U shape, flared grooves 402 are also formed in the front surface of the rotating disc 400 and located at the loading grooves 401, and arc-shaped rotating seats 403 are rotatably arranged in the flared grooves 402; in the embodiment, the number of the loading grooves 401 is three, the flared grooves 402 are circular, and the center of the flared grooves 402 coincides with the center of the inner end arc segment of the loading grooves 401; the center of the rotating seat 403 also coincides with the center of the flared grooves 402, and the rotating seat 403 can rotate around its center.

[0020] Specifically, the gap width of the rotating seat 403 is not less than the opening width of the loading groove 401, an assembly ring 404 in arc shape is fixedly arranged in the flared groove 402, the assembly ring 404 is sleeved on the outside of the rotating seat 403, a plurality of rollers 405 are rotatably arranged on the assembly ring 404 at equal intervals, and the rollers 405 are in rolling contact with the outer ring wall of the rotating seat 403. The assembly ring 404 includes two arc-shaped ring pieces, the two ring pieces are symmetrically distributed in mirror image, the rollers 405 are rotatably arranged between the two ring pieces, the rollers 405 are in the shape of an ellipsoid with thick middle and thin ends, and the outer ring wall of the rotating seat 403 is concave to match the shape of the rollers 405. Therefore, the rollers 405 not only allow the rotating seat 403 to rotate around its center, but also prevent the rotating seat 403 from moving in the axial direction to maintain the stability of the rotating seat 403.

[0021] It is worth mentioning that the rotating seat 403 and the assembly ring 404 in the embodiment are made of stainless steel, and the rollers 405 are made of high chromium steel, which has high strength characteristics.

[0022] In this embodiment, the loading mechanism 500 is located diagonally above the rotating disk 400. The loading mechanism 500 includes a mounting base 501 and a loading tray 502. A plurality of storage slots 503 are evenly spaced on the outer peripheral wall of the loading tray 502. When the storage slots 503 and the loading slots 401 are aligned, the workpieces in the storage slots 503 can roll into the corresponding loading slots 401. Specifically, one end of the mounting base 501 is provided with a connecting frame, which is fixedly connected to the machine tool body 100 by bolts. The loading mechanism 500 is located diagonally above the rotating disk 400, near the outside, to facilitate user loading. A loading servo motor 504 is provided on the back of the mounting base 501, and the output shaft of the loading servo motor 504 is coaxially connected to the loading tray 502. The loading servo motor 504 drives the loading tray 502 to rotate intermittently, and the rotation angle each time is consistent with the angle between two adjacent storage slots 503.

[0023] Furthermore, the mounting base 501 has an arc-shaped baffle 505 located on the side of the loading tray 502, such as Figure 2 As shown, when the workpiece on the loading tray 502 rotates to the area directly opposite the arc-shaped baffle 505, the arc-shaped baffle 505 can prevent the workpiece from falling. The center of the arc-shaped baffle 505 coincides with the center of the loading tray 502. When the loading tray 502 carries the workpiece into the area directly opposite the arc-shaped baffle 505, the inner surface of the arc-shaped baffle 505 has only a tiny gap with the workpiece, thus preventing the workpiece from falling. Furthermore, it is worth mentioning that in this embodiment, there are 10 storage troughs 503, and the included angle between two adjacent storage troughs 503 is 36°.

[0024] It should be noted that the several storage slots 503 on the loading tray 502 require manual, timed feeding, and each time several workpieces can be loaded. In this embodiment, both the loading tray 502 and the rotating disk 400 rotate clockwise, and the rotating disk 400 also rotates intermittently, with each rotation angle being the included angle between two adjacent loading slots 401. Specifically, in application, the rotating disk 400 first rotates 120° and then fixes itself, while the loading tray 502 then rotates 36°. When the storage slot 503 leaves the arc-shaped baffle 505, it can directly face a loading slot 401 located diagonally above it. Figure 2 As shown, the workpiece can automatically roll into the loading trough 401 at this time.

[0025] It is worth mentioning that a stabilizing sleeve 406 is provided on the back of the rotating disk 400, located at the position of the loading groove 401. The stabilizing sleeve 406 is U-shaped and matches the contour of the loading groove 401. Figure 3 As shown, the stabilizing sleeve 406 is welded and fixed to the back of the rotating disk 400. The function of the stabilizing sleeve 406 is to support the workpiece, and the side of the stabilizing sleeve 406 away from the rotating disk 400 has an end cap. It should be noted that, for ease of demonstration of the clamping mechanism 600, Figure 3Only one set of the material clamping mechanism 600 is shown on the transfer rotary disc 400.

[0026] The structure of the material clamping mechanism 600 is described as follows: The material clamping mechanism 600 corresponds to the loading groove 401 one by one, and the material clamping mechanism 600 comprises a material clamping ring 601 which is coaxially arranged with the corresponding rotary seat 403. The material clamping ring 601 is internally hollow, and comprises two front and back walls in the form of a circular ring, and two inner and outer walls in the form of an inner and outer concentric distribution. The front and back walls, the inner wall and the outer wall jointly form an internally hollow circular ring structure, as shown in Figure 8 and Figure 9 The two end faces of the inner wall and the outer wall are bolted and fixed with the front wall and the back wall, respectively.

[0027] Specifically, the front surface of the rotary seat 403 is provided with three guide rods 602 at equal intervals in the circumferential direction, and the three guide rods 602 are movably penetrated through the corresponding material clamping ring 601. The guide rods 602 are riveted and fixed with the rotary seat 403, and are distributed along the axial direction of the rotary seat 403. The front wall and the back wall of the material clamping ring 601 are both provided with through holes for the guide rods 602 to pass through.

[0028] In this embodiment, the inside of the material clamping ring 601 is provided with a material clamping assembly, which comprises at least three clamping heads 603. One end of the clamping head 603 extends into the inner ring of the material clamping ring 601, and the clamping head 603 is slidably connected with the material clamping ring 601 along the radial direction of the material clamping ring 601. Specifically, the inner wall of the material clamping ring 601 is provided with an opening for the clamping head 603 to pass through, and the end of the clamping head 603 extending into the inner ring of the material clamping ring 601 is used to abut against the workpiece.

[0029] In some embodiments of the present application, the material clamping assembly further comprises a driving ring 604 which is coaxially arranged with the material clamping ring 601 and located inside the material clamping ring 601. The driving ring 604 is rotatably connected with the inner ring of the material clamping ring 601 through a bearing, and the upper surface of the driving ring 604 is protrudingly formed with a helical tooth 605, as shown in Figure 7 The bottom surface of the clamping head 603 is threadedly connected with the helical tooth 605. The two sides of the clamping head 603 are slidably provided with a stop plate 606 which is fixedly connected with the inner wall of the material clamping ring 601. The stop plate 606 is used to limit the clamping head 603, so that the clamping head 603 can only move along the radial direction of the material clamping ring 601. Therefore, when the driving ring 604 rotates, the clamping head 603 can be driven to slide back and forth along the radial direction of the material clamping ring 601 due to the thread cooperation.

[0030] Further, the clamping assembly further comprises a driving gear ring 607 located inside the clamping ring 601 and outside the driving ring 604, the driving gear ring 607 is rotationally connected with the inner wall of the clamping ring 601, the outer peripheral wall of the driving ring 604 is fixedly sleeved with a driven gear ring 608, the driven gear ring 608 and the driving gear ring 607 are in meshing engagement; one guide rod 602 passes through the inside of the driving gear ring 607, the outer surface of the guide rod 602 is provided with a spiral groove 609, the inner ring of the driving gear ring 607 is protrudingly formed with a guide protrusion 610, and the guide protrusion 610 is movably embedded in the spiral groove 609. Therefore, when the clamping ring 601 slides along the guide rod 602, the guide protrusion 610 can move along the spiral groove 609, so that the driving gear ring 607 and the driving ring 604 are rotated.

[0031] It should be noted that the rear wall of the driving gear ring 607 and the clamping ring 601 are rotationally connected through bearings. The guide protrusion 610 is in a semispherical shape, and the surface of the guide protrusion 610 and the inner surface of the spiral groove 609 are chrome-plated and smoothed to reduce the sliding friction therebetween, so that the guide protrusion 610 can more smoothly slide inside the spiral groove 609.

[0032] In the embodiment, the clamping mechanism 600 further comprises a linear driving assembly for driving the clamping ring 601 to slide in the axial direction, when the clamping ring 601 approaches the rotating seat 403, the clamping heads 603 slide towards the center of the clamping ring 601. Specifically, the linear driving assembly comprises a linear module 611 and a retaining sleeve 612, the linear module 611 can be a hydraulic sliding table in the embodiment, the linear module 611 is fixedly installed on the front surface of the rotating disc 400, and the linear module 611 is distributed along the axial direction of the rotating disc 400, the retaining sleeve 612 is rotationally sleeved outside the clamping ring 601, and the retaining sleeve 612 is further fixedly connected with the movable end of the linear module 611. Therefore, the clamping ring 601 can be directly driven to slide in the axial direction of the guide rod 602 through the linear driving assembly, and when the clamping ring 601 gradually approaches the rotating disc 400, the clamping heads 603 will gradually approach the center of the clamping ring 601; when the clamping ring 601 gradually moves away from the rotating disc 400, the clamping heads 603 will also gradually move away from the center of the clamping ring 601, so that the workpiece is clamped or released.

[0033] It is worth mentioning that the driving of the hydraulic sliding table needs the power provided by a hydraulic system, and the connection of the hydraulic system and the hydraulic sliding table cannot be separated from the hydraulic pipeline. In order to avoid the continuous rotation of the rotating disc 400 from winding the hydraulic pipeline, in the embodiment, every time the rotating disc 400 rotates clockwise for 3 turns, the rotating disc 400 rotates counterclockwise for 3 turns to return to the original position, and then the intermittent clockwise rotation is repeated.

[0034] In some embodiments of the present application, the embodiment further comprises a rotary driving mechanism 700 arranged on the workbench of the machine tool body 100, the rotary driving mechanism 700 is located at one side of the rotating disc 400, and the rotary driving mechanism 700 is used to drive any material clamping ring 601 to rotate; specifically, the rotary driving mechanism 700 comprises a driving motor 701 and a driving gear 702 in transmission connection with the output shaft of the driving motor 701, and the outer part of the material clamping ring 601 is fixedly sleeved with a driving gear ring 613; when the material clamping ring 601 moves to a position opposite to the rotary driving mechanism 700, the driving gear 702 can be engaged with the corresponding driving gear ring 613. It should be noted that the driving gear 702 is arranged on the workbench through a gear seat, and the driving gear 702 and the output shaft of the driving motor 701 are in transmission connection through a synchronous belt.

[0035] It should be noted that the rotary driving mechanism 700 is located on the inner side of the machine tool workbench, when one of the rotary seats 403 rotates to the inner side of the machine tool and is consistent with the center height of the rotating disc 400, as shown in Figure 2 , the rotary seat 403 is consistent with the center height of the driving gear 702.

[0036] In summary, in the actual application process of the embodiment, the rotating disc 400 and the material loading disc 502 are intermittently rotated, when the storage groove 503 on the material loading disc 502 is rotated to align with the material loading groove 401, the cylindrical workpiece in the storage groove 503 can be automatically rolled into the material loading groove 401. It should be noted that at this time, the material clamping ring 601 is located away from the rotating disc 400, and the workpiece will not be hindered by the material clamping ring 601 and the guide rod 602 when entering the material loading groove 401.

[0037] Subsequently, the linear driving assembly controls the material clamping ring 601 to approach the rotating disc 400, and in the movement process of the material clamping ring 601, the clamping heads 603 also gradually approach the center of the material clamping ring 601, until the clamping heads 603 abut against the surface of the workpiece, so as to clamp the workpiece. At this time, since the position of the clamping head 603 is limited by the workpiece, the positions of the driving ring 604 and the driving gear ring 607 are also fixed, so that the material clamping ring 601 cannot continue to move. It is worth mentioning that since the diameter of the workpiece is a certain value, when the material clamping ring 601 cannot continue to move, the distance between the material clamping ring 601 and the rotating disc 400 is also a certain value.

[0038] When the workpiece located in the machining position is machined, the rotating disc 400 rotates again by 120° clockwise, so that the above-mentioned machined workpiece also enters the position opposite to the rotating driving mechanism 700, at this time the driving gear 702 and the driving gear ring 613 are engaged, and then the driving motor 701 is started and drives the workpiece to rotate around its center axis. Then the sliding tool holder 300 is automatically controlled by the program to approach the workpiece, and the workpiece is turned. After finishing, the sliding tool holder 300 is reset to the right, the driving motor 701 is temporarily stopped, the rotating disc 400 rotates again by 120°, and the above-mentioned process is repeated, so that the automatic machining of the workpiece is completed.

[0039] When the machined workpiece rotates to the position located obliquely below the rotating disc 400, if the gap of the rotating seat 403 is not aligned with the opening of the loading groove 401, the workpiece may not fall smoothly, at this time manual assistance is needed to rotate the rotating seat 403, so that the workpiece automatically falls. It is worth mentioning that although the workpiece loading and unloading in the embodiment also needs manual intervention, compared with the chuck clamping mode, the loading and unloading in the embodiment is obviously simpler; in addition, since the embodiment has three loading grooves 401, the three loading grooves 401 are alternately located in the machining position, which can greatly reduce the waiting time and improve the machining efficiency.

[0040] In addition, the material clamping ring 601 in the embodiment is fixed by the guide rod 602 and the linear module 611, so that the fixing accuracy of the workpiece is lower than that of the traditional chuck to some extent, so the embodiment is more suitable for machining some aluminum alloy parts with low precision requirements, such as some protective parts, covering parts, connecting parts, rather than workpieces involving transmission and motion cooperation.

[0041] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A numerical control machine tool for machining of automobile aluminum alloy parts, comprising a machine tool body, a main shaft box is arranged at one end of a worktable of the machine tool body, and a sliding tool holder is arranged at the other end of the worktable, characterized in that, Also include: Rotary disc, the rotary disc is coaxial fixed connection with the output shaft of the main shaft box, the outer ring wall of the rotary disc is equidistantly provided with at least three loading grooves, the loading groove is U-shaped, the front of the rotary disc and located at the loading groove is also provided with flared groove, the flared groove is rotatably provided with a rotation seat which is arc-shaped; Loading mechanism, the loading mechanism is arranged obliquely above the rotary disc, the loading mechanism includes a mounting seat and a loading disc, the outer peripheral wall of the loading disc is uniformly and equidistantly provided with a plurality of storage grooves, when the storage groove and the loading groove are aligned, the workpiece in the storage groove can roll into the corresponding loading groove; Clamping mechanism, the clamping mechanism corresponds to the loading groove one by one, the clamping mechanism includes a clamping ring, the clamping ring is coaxially arranged with the corresponding rotation seat, the clamping ring is hollow structure, the clamping ring is provided with a clamping assembly, the clamping assembly includes at least three clamping heads, one end of the clamping head extends into the inner ring of the clamping ring, and the clamping head is slidably connected with the clamping ring along the radial direction of the clamping ring; Rotary drive mechanism, arranged on the workbench of the machine tool body, the rotary drive mechanism is located on one side of the rotary disc, the rotary drive mechanism is used for driving any clamping ring to rotate; Wherein, the clamping mechanism and the corresponding rotation seat are slidably connected along the axial direction of the rotary disc, the clamping mechanism further includes a linear drive assembly for driving the clamping ring to slide along the axial direction, when the clamping ring approaches the rotation seat, the plurality of clamping heads slide towards the center of the clamping ring.

2. The numerical control machine tool for processing automobile aluminum alloy parts according to claim 1, characterized in that: The mounting seat has an arc-shaped baffle on the side of the loading disc, when the workpiece on the loading disc rotates to the position opposite to the arc-shaped baffle, the arc-shaped baffle can prevent the workpiece from falling off.

3. The numerical control machine tool for processing automobile aluminum alloy parts according to claim 1, characterized in that: The back of the rotary disc and located at the loading groove position is provided with a stabilizing sleeve, the stabilizing sleeve is U-shaped and matches the contour of the loading groove.

4. The numerical control machine tool for processing automobile aluminum alloy parts according to any one of claims 1 or 3, characterized in that: The notch width of the rotation seat is not less than the opening width of the loading groove, the flared groove is fixedly provided with a fitting ring which is arc-shaped, the fitting ring is sleeved on the outside of the rotation seat, a plurality of rollers are rotatably arranged on the fitting ring, and the rollers are in rolling contact with the outer ring wall of the rotation seat.

5. The numerical control machine tool for processing automobile aluminum alloy parts according to claim 1, characterized in that: The front of the rotation seat is equidistantly provided with three guide rods along the circumferential direction, the three guide rods are movably penetrated through the corresponding clamping ring.

6. The numerically controlled machine tool for processing of an automobile aluminum alloy piece according to claim 5, characterized in that: The clamping assembly includes a drive ring, the drive ring is coaxially arranged with the clamping ring and located inside the clamping ring, the drive ring is rotatably connected with the inner ring of the clamping ring, the upper surface of the drive ring is protrusively formed with a helical tooth, and the bottom surface of the clamping head is threadedly connected with the helical tooth. The clamping head is slidably provided with a baffle plate on both sides, and the baffle plate is fixedly connected with the inner wall of the clamping ring.

7. The numerically controlled machine tool for processing of an automobile aluminum alloy piece according to claim 6, characterized in that: The clamping assembly further includes a driving gear ring which is located inside the clamping ring and outside the drive ring, the driving gear ring is rotatably connected with the inner wall of the clamping ring, the outer peripheral wall of the drive ring is fixedly sleeved with a driven gear ring, and the driven gear ring and the driving gear ring are in meshing connection; One of the guide rods penetrates through the inside of the driving gear ring, the outer surface of the guide rod is provided with a helical groove, the inner ring of the driving gear ring is protrusively formed with a guide protrusion, and the guide protrusion is movably embedded in the helical groove.

8. The numerically controlled machine tool for processing of automobile aluminum alloy parts according to claim 1, characterized in that: The linear driving assembly comprises a linear module and a retaining sleeve, the linear module is fixedly installed on the front surface of the rotating disc and is distributed along the axial direction of the rotating disc, and the retaining sleeve is rotatably sleeved outside the material clamping ring and is fixedly connected with the movable end of the linear module.

9. The numerically controlled machine tool for processing of aluminum alloy parts for automobiles according to claim 1, characterized in that: The rotating driving mechanism comprises a driving motor and a driving gear connected with the output shaft of the driving motor, and the outer portion of the material clamping ring is fixedly sleeved with a driving gear ring; when the material clamping ring moves to a position opposite to the rotating driving mechanism, the driving gear can be engaged with the corresponding driving gear ring.

10. The numerically controlled machine tool for processing of an automobile aluminum alloy piece according to claim 1, characterized in that: The back surface of the mounting seat is provided with a loading servo motor, and the output shaft of the loading servo motor is coaxially connected with the loading disc.

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