A main shaft of an ultra-heavy horizontal turning and milling combined machine tool and a machine tool with the main shaft

Abstract

The application relates to the technical field of numerical control machine tools, and particularly provides a main shaft of an ultra-heavy horizontal turning and milling combined machine tool and the machine tool with the main shaft. The main shaft comprises a box body set, a main shaft assembly set is rotatably arranged in the middle of the box body set, a driving gear module and a gear shifting fork set are arranged on the main shaft box body set on the two sides of the main shaft assembly set, the driving gear module is engaged with the main shaft assembly set and is used for driving the main shaft assembly set to rotate, and the gear shifting fork set is used for driving the gear piece on the driving gear module to realize high-gear, low-gear and neutral-gear output of the driving gear module. The application has good rigidity, the stress surface of the plane roller bearing is processed together with the front and rear bearing holes of the box body, the perpendicularity is easy to guarantee, the eccentric load stress condition of the plane bearing is weakened, and the axial movement precision of the main shaft is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools, in particular to a main shaft of an ultra-heavy horizontal turning and milling combined machine tool and a machine tool with the main shaft. BACKGROUND

[0002] The traditional main shaft driving design of a large numerical control horizontal lathe generally adopts a set of wide speed ratio high-power low-speed main motor to drive the main shaft to rotate through a set of speed reduction device, and the main shaft obtains a wide constant power speed range through hydraulic or electrical gear shifting operation. This structure design is mature whether in domestic or foreign large numerical control horizontal lathe design, and it is also the most common transmission mode. This traditional transmission structure has the advantages of mature structure and simplicity, but the application of this structure to heavy machine tools will have the defects of insufficient strength and insufficient precision. SUMMARY

[0003] In order to solve the defects in the prior art, the present application provides a main shaft of an ultra-heavy horizontal turning and milling combined machine tool and a machine tool with the main shaft, which is realized by the following technical scheme:

[0004] A main shaft of an ultra-heavy horizontal turning and milling combined machine tool, comprising a main shaft assembly set rotatingly installed in the middle of a main shaft box set, a driving gear module is installed on the main shaft box set on both sides of the main shaft assembly set, the main shaft assembly set comprises a main shaft body rotatingly connected with the main shaft box set and provided with an eighth gear;

[0005] The driving gear module comprises a first shaft assembly set, a second shaft assembly set and a third shaft assembly set rotatingly matched with the main shaft box set;

[0006] The first shaft assembly set comprises a first shaft body provided with a spline and a third gear, the third gear is engaged with the eighth gear, the spline is engaged with a spline sleeve, a second gear is installed at the first end of the spline sleeve, a first gear is installed at the second end, and a shift fork groove is arranged on the side of the second gear close to the first gear;

[0007] The third shaft assembly set comprises a third shaft body, a fifth gear, a sixth gear and a seventh gear are installed on the third shaft body in sequence, the sixth gear can be engaged with the first gear, and the fifth gear can be engaged with the second gear;

[0008] The second shaft assembly set comprises a second shaft body, a fourth gear engaged with the seventh gear is installed on the second shaft body; and the second shaft body is drivingly connected with a motor;

[0009] The shift fork groove is matched with a gear shifting shift fork set;

[0010] The span of the main shaft assembly kit is 1600mm.

[0011] The gear shifting fork kit comprises a fork matched with a fork groove, two ends of the fork are respectively slidably connected with a first guide rod and a second guide rod, the first guide rod and the second guide rod are fixedly installed on the main shaft box kit, and the fork is further drivingly connected with a hydraulic cylinder installed on the main shaft box kit.

[0012] The eighth gear has m=10, Z=115 and beta=15° right; the third gear has m=10, Z=28 and beta=15° left; the second gear has m=8, Z=78; the first gear has m=6, Z=62; the fifth gear has m=8, Z=21; the sixth gear has m=6, Z=70; the seventh gear has m=6, Z=83 and beta=15° right; and the fourth gear has m=6, Z=26 and beta=15° left.

[0013] The second end of the main shaft body is bolted with the first end of a transmission shaft, and the second end of the transmission shaft is drivingly connected with the input end of an encoder.

[0014] The first end and the second end of the main shaft body are respectively rotatably connected with the main shaft box kit through a fifth bearing and a sixth bearing, and the fifth bearing comprises at least one taper hole cylindrical roller bearing and at least one thrust cylindrical roller bearing.

[0015] A machine tool has the main shaft of the super-heavy horizontal turning-milling combined machine tool as described above.

[0016] The machine tool comprises a bed body, a column is slidably installed on the top of the bed body, and the main shaft is installed on the column through a swing head; a slag leakage groove is formed in the bed body, and the column is located on one side of the slag leakage groove; a slag discharging auger is installed in the slag leakage groove, and the top of the slag discharging auger is open; two first slide rails are fixedly installed on the top of the bed body and parallel to each other, the two first slide rails are respectively located on two sides of the slag leakage groove, a bucket body is slidably installed between the two first slide rails, the bucket body can synchronously move with the column, a transition bucket is fixedly installed on the top of the bucket body, a baffle is fixedly installed on the end of the transition bucket away from the column, two limiting guide rails are fixedly installed on the end of the transition bucket close to the column, a pull rod is slidably installed between the two limiting guide rails, the top of the pull rod is fixedly connected with the housing of the swing head through a connecting column, an automatic rebound shaft is fixedly installed on the end of the transition bucket close to the column, a material blocking cloth is installed on the automatic rebound shaft, and the end of the material blocking cloth is fixedly connected with the pull rod; a discharging opening is arranged on the bottom of the bucket body, and the discharging opening extends into the slag discharging auger.

[0017] The automatic rebound shaft comprises a shell, a shaft body and a torsion spring, both ends of the shaft body are provided with auxiliary shaft bodies, both ends of the shell are provided with limiting cylinders, the auxiliary shaft bodies extend into the corresponding limiting cylinders and are rotationally matched with the limiting cylinders, the torsion spring is sleeved outside the auxiliary shaft body, a first end of the torsion spring is inserted into a first clamping groove, the first clamping groove is formed in the auxiliary shaft body, a second end of the torsion spring is sleeved on a clamping shaft, the clamping shaft is fixedly installed in the shell, and the material blocking cloth is wound around the shaft body.

[0018] A second clamping groove is formed in the shaft body, and a fixing piece is installed in the second clamping groove and fixedly connected with a second end of the material blocking cloth.

[0019] Both ends of the shaft body are also provided with limiting discs, and the limiting discs have a diameter larger than that of the shaft body.

[0020] The technical scheme has the following advantages:

[0021] (1) The front support of the main shaft body adopts a cylindrical roller bearing with a taper hole to bear the radial force, and a thrust cylindrical roller bearing to bear the axial force. Among various bearings of the same specification, these two kinds of bearings can bear the highest rated load, which can ensure that the bearing has better rigidity and service life. In addition, unlike the traditional main shaft structure, the present structure realizes independent installation and adjustment of the radial bearing and the axial bearing, and the two bearings do not interfere with each other during the adjustment process. The structure is simple, the adjustment is convenient, and the main shaft can realize better rotation accuracy. In addition, unlike general horizontal lathes, the workpiece of the heavy horizontal lathe is supported by the top center of the main shaft and the tailstock. When the top center supports the workpiece, the axial component force of the workpiece is very large. Therefore, the present structure cancels the force pad for positioning the plane bearing in the traditional main shaft structure, and the thrust bearing is directly installed in the hole of the box. The axial component force generated by the workpiece support is completely borne by the vertical wall. The vertical wall and the box are integrally cast, and have good rigidity. At the same time, the force bearing surface of the plane roller bearing is machined together with the front and rear bearing holes of the box, so that the perpendicularity is easy to ensure, the eccentric load bearing condition of the plane bearing is weakened, and the axial movement accuracy of the main shaft is better.

[0022] (2) As a key component of the machine tool, the reliability of the main shaft is extremely important. Therefore, temperature detection sensors are installed on the front and rear bearings of the main shaft body to monitor the temperature change of the bearings in real time during the machining process. The sudden change of the bearing temperature caused by insufficient lubrication and other conditions is avoided, and the occurrence of problems such as damage to the main shaft is avoided. When problems occur, signals are sent in time to avoid major accidents.

[0023] (3) The traditional lathe spindle structure, in order to facilitate the machining of slender shaft parts, the traditional spindle body is generally provided with a through hole. Therefore, the encoder adopts the form of 1:1 transmission gear or synchronous toothed belt to connect with the spindle body. In the transmission process, there will be a certain backlash deviation. In order to improve the strength of the spindle, the heavy lathe spindle generally adopts a solid spindle structure, which provides conditions for the direct connection of the encoder and the spindle body. Therefore, we use the structure of the encoder and the spindle body in the figure. This structure makes the encoder feedback signal more accurate, the spindle body directional accuracy higher, and more conducive to thread machining and other processes that need to be frequently reversed.

[0024] (4) The machine tool can collect the debris during the machining process of the workpiece, avoid the debris flying everywhere, and reduce the difficulty of subsequent cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. Those skilled in the art can obtain other drawings according to these drawings without creating any inventive labor.

[0026] Figure 1 It is a disassembled structure diagram of the present application;

[0027] Figure 2 It is a structure diagram of the spindle box assembly;

[0028] Figure 3 It is a structure diagram of the shift fork assembly;

[0029] Figure 4 It is a structure diagram of the first shaft assembly;

[0030] Figure 5 It is a structure diagram of the second shaft assembly;

[0031] Figure 6 It is a structure diagram of the third shaft assembly;

[0032] Figure 7 It is a structure diagram of the spindle assembly;

[0033] Figure 8 It is a plane expansion diagram of the present application;

[0034] Figure 9 It is a plane expansion diagram of the shift fork assembly;

[0035] Figure 10 It is a simplified diagram of the shafting structure of the present application;

[0036] Figure 11 Structure diagram of machine tool;

[0037] Figure 12 Structure diagram of Figure 11 Structure diagram of mechanism at A in the middle;

[0038] Figure 13 Structure diagram of material receiving hopper;

[0039] Figure 14 Structure diagram of Figure 13 Structure diagram at B in the middle;

[0040] Figure 15 Structure diagram of automatic rebound shaft;

[0041] Figure 16 Structure diagram of internal structure of automatic rebound shaft;

[0042] Figure 17 Structure diagram of Figure 16 Structure diagram at C in the middle;

[0043] Figure 18 Structure diagram of reel;

[0044] Figure 19 Structure diagram of fixing member.

[0045] In the figure, 1-main shaft box assembly, 101-first mounting seat, 102-second mounting seat, 103-third mounting seat, 104-fourth mounting seat, 105-fifth mounting seat, 106-sixth mounting seat;

[0046] 2-shifting fork assembly, 201-hydraulic cylinder, 202-first guide rod, 203-fork, 204-second guide rod, 205-connecting rod;

[0047] 3-first shaft assembly, 301-first shaft body, 302-first bearing member, 303-second bearing member, 304-first gear, 305-spline sleeve, 306-second gear, 307-third gear, 308-fork groove;

[0048] 4-second shaft assembly, 401-second shaft body, 402-third bearing member, 403-fourth gear, 404-rotary seal ring;

[0049] 5-third shaft assembly, 501-third shaft body, 502-fifth gear, 503-sixth gear, 504-seventh gear, 505-fourth bearing member;

[0050] 6- main shaft assembly kit, 601- main shaft body, 602- eighth gear, 603- center, 604- fifth bearing piece, 605- sixth bearing piece, 606- encoder, 607- coupling;

[0051] 7- bed body, 701- rack, 702- first sliding rail, 703- slag notch, 704- second sliding rail, 705- first lead screw, 706- second lead screw, 707- first motor;

[0052] 8- receiving hopper, 801- discharge port, 802- hopper body, 803- first connecting block, 804- first connecting plate, 805- transition hopper, 806- baffle, 807- limiting guide rail, 808- material blocking cloth, 809- automatic rebound shaft, 8010- second connecting plate, 8011- second nut sliding block, 8012- second connecting block, 8013- pull rod, 8014- connecting column, 8015- sliding groove, 8016- shell, 8017- guide plate, 8018- shaft body, 8019- torsional spring, 8020- auxiliary shaft body, 8021- limiting cylinder, 8022- limiting disc, 8023- clamping shaft, 8024- first clamping groove, 8025- second clamping groove, 8026- plate body, 8027- plug block;

[0053] 9- first machine case, 901- gear;

[0054] 10- discharging screw conveyor;

[0055] 11- stand column, 1101- third sliding rail, 1102- third motor, 1103- third lead screw, 1104- sliding plate, 1105- mounting plate, 1106- fourth motor, 1107- swing head;

[0056] 12- second machine case, 1201- fifth motor, 1202- second chuck. DETAILED DESCRIPTION

[0057] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0058] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict between them.

[0061] As shown in the accompanying Figure 1 to the accompanying Figure 12 The present application provides a main shaft of an ultra-heavy horizontal turning and milling combined machine tool.

[0062] The shaft includes a main shaft box assembly 1, a main shaft assembly 6 is rotatably mounted in the middle of the main shaft box assembly 1, a drive gear module and a gear shifting fork assembly 2 are mounted on both sides of the main shaft box assembly 1 of the main shaft assembly 6, the drive gear module is engaged with the main shaft assembly 6, and is used to drive the main shaft assembly 6 to rotate; the gear shifting fork assembly 2 is used to drive the gear piece on the drive gear module to realize high gear, low gear and neutral gear output of the drive gear module.

[0063] Each drive gear module is driven by a corresponding motor.

[0064] The structure of the main shaft assembly 6 is shown in the accompanying Figure 7 The main shaft body 601 is connected with the corresponding sixth mounting seat 106 through the fifth bearing 604 and the sixth bearing 605 at the first end and the second end respectively, and the sixth mounting seat 106 is fixed on the main shaft box assembly 1.

[0065] The first end of the spindle body 601 extends out of the spindle housing kit 1 and is fitted with a tip 603. The second end is bolted to the first end of the drive shaft. The second end of the drive shaft is driven to the input end of the encoder 606 via a coupling 607. The encoder 606 is used to detect the rotational speed of the spindle body 601. Specifically, the encoder 606 is connected to the spindle body 601 in the form of a 1:1 transmission gear or a synchronous toothed belt.

[0066] An eighth gear 602 is mounted on the middle of the main spindle 601 via a first key. The drive gear module meshes with the eighth gear 602 to drive the main spindle 601 to rotate.

[0067] The structure of the drive gear module is shown in the attached figure. Figure 1 As shown, it includes a first axis assembly kit 3, a second axis assembly kit 4, and a third axis assembly kit 5, wherein the second axis assembly kit 4 is connected to the motor drive.

[0068] The second shaft assembly kit 4 serves as the power input end of the entire main shaft structure, and its structure is shown in the attached figure. Figure 5 As shown, it includes a second shaft 401, a third bearing 402 and a fourth gear 403 are mounted in the middle of the second shaft 401. The third bearing 402 is mounted on the second shaft 401 by a shaft key. The fourth gear 403 can be mounted in two ways: one is by a shaft key, and the other is integrally formed with the second shaft 401, that is, the fourth gear 403 is formed by milling on the second shaft 401.

[0069] The first end of the second shaft 401 is also equipped with a seventh bearing component, and elastic retaining rings matching the seventh bearing component are provided on both sides of the second shaft 401.

[0070] The seventh bearing component and the third bearing component 402 respectively cooperate with the corresponding fifth mounting base 105, and the fifth mounting base 105 is fixedly installed on the spindle housing assembly 1.

[0071] The second end of the second shaft 401 passes through the main spindle housing assembly 1 and is connected to the motor drive. A rotary sealing ring 404 is also installed between the second shaft 401 and the fifth mounting base 105.

[0072] The third axis assembly kit 5 serves as the structure for transmitting power to the first axis assembly kit 3, and its structure is shown in the attached figure. Figure 6As shown, the third shaft body 501 is sequentially provided with an eighth bearing, a fifth gear 502, a sixth gear 503, a seventh gear 504, and a fourth bearing 505 from a first end to a second end, wherein the sixth gear 503, the seventh gear 504, and the fourth bearing 505 are all mounted on the third shaft body 501 through shaft keys and are located on a side close to the second end of the third shaft body 501; the eighth bearing and the fifth gear 502 are located on a side close to the first end of the third shaft body 501. A gap is left between the fifth gear 502 and the sixth gear 503.

[0073] The eighth bearing and the fourth bearing 505 are respectively matched with corresponding fourth mounting seats 104, and the fourth mounting seats 104 are fixedly mounted on the main shaft box assembly 1.

[0074] The seventh gear 504 has a diameter greater than that of the sixth gear 503, and is used to mesh with the fourth gear 403, so as to transmit power on the second shaft assembly 4 to the third shaft assembly 5.

[0075] The foregoing eighth bearing, fifth gear 502, sixth gear 503, seventh gear 504, and fourth bearing 505 are preferably mounted on the third shaft body 501 through shaft keys, and of course can also be mounted through the way of limiting by elastic retaining rings. The fifth gear 502 can also be formed integrally with the third shaft body 501, that is, milling is performed on the third shaft body 501.

[0076] The first shaft assembly 3 is used to transmit power of the third shaft assembly 5 to the main shaft assembly 6, and the structure thereof is as shown in FIG. 3. Figure 4 As shown, the first shaft body 301 is fixedly provided with a ninth bearing, a third gear 307, and a second bearing 303 at a first end thereof, wherein the third gear 307 is formed integrally with the first shaft body 301; a first bearing 302 is fixedly mounted at a second end of the first shaft body 301.

[0077] The third gear 307 meshes with the eighth gear 602.

[0078] The ninth bearing, the second bearing 303, and the first bearing 302 are respectively matched with corresponding third mounting seats 103, and the third mounting seats 103 are fixedly mounted on the main shaft box assembly 1.

[0079] The middle part of the first shaft body 301 is provided with a spline, and the spline is engaged with a spline sleeve 305. The first end of the spline sleeve 305 is fixedly installed with a second gear 306 through a shaft key, and the second end is fixedly installed with a first gear 304. The first gear 304 is integrally formed with the spline sleeve 305. The diameter of the first gear 304 is smaller than the diameter of the second gear 306, but larger than the diameter of the third gear 307.

[0080] The diameter of the first gear 304 is smaller than the diameter of the sixth gear 503.

[0081] The side of the second gear 306 close to the first gear 304 is provided with a shift fork groove 308.

[0082] The shift fork assembly 2 is provided with a shift fork 203, which is located in the shift fork groove 308 and pushes the spline sleeve 305 to move back and forth along the spline on the first shaft body 301, so as to realize the engagement of the first gear 304 with the sixth gear 503, or the engagement of the second gear 306 with the fifth gear 502, or the disengagement of the first gear 304 from the sixth gear 503 and the disengagement of the second gear 306 from the fifth gear 502.

[0083] The third gear 307 is engaged with the eighth gear 602 on the main shaft assembly 6, so that the power of the motor is finally transmitted to the main shaft body 601.

[0084] When the first gear 304 is engaged with the sixth gear 503, the main shaft body 601 rotates at high gear; when the second gear 306 is engaged with the fifth gear 502, the main shaft body 601 rotates at low gear; when the first gear 304 is disengaged from the sixth gear 503 and the second gear 306 is disengaged from the fifth gear 502, the first shaft assembly 3 stops rotating, realizing the neutral gear.

[0085] The structure of the shift fork assembly 2 is shown in the accompanying drawings. Figure 2 As shown, the shift fork assembly 2 includes a hydraulic cylinder 201, the cylinder body of which is fixedly installed on a first mounting seat 101, and the first mounting seat 101 is fixedly installed on the main shaft box assembly 1. The output end of the hydraulic cylinder 201 extends into the inside of the main shaft box assembly 1 and is detachably installed with a connecting rod 205 through screwing or the like. The end of the connecting rod 205 away from the hydraulic cylinder 201 is also detachably installed with a shift fork 203, and the two ends of the shift fork 203 are respectively in sliding fit with a first guide rod 202 and a second guide rod 204. The two ends of the first guide rod 202 and the second guide rod 204 are respectively fixedly connected with corresponding second mounting seats 102, and the second mounting seats 102 are fixedly installed on the main shaft box assembly 1.

[0086] In this embodiment, the fifth bearing component 604 includes a cylindrical roller bearing with a tapered bore and a thrust cylindrical roller bearing. The two bearings are installed and adjusted independently. During the adjustment process, the two sets of bearings do not interfere with each other. The structure is simple and the adjustment is convenient, which makes it easier for the spindle to achieve better rotational accuracy.

[0087] As attached Figure 10 As shown, both the fifth bearing component 604 and the sixth bearing component 605 include two bearings.

[0088] The fifth bearing component 604 includes a tapered cylindrical roller bearing that bears radial force and a thrust cylindrical roller bearing that bears axial force.

[0089] The spindle housing assembly 1 is also equipped with temperature sensors that match the fifth bearing component 604 and the sixth bearing component 605.

[0090] In this embodiment, the span of the spindle assembly kit 6 is 1600mm, which is the distance between the sixth bearing component 605 and the fifth bearing component 604.

[0091] The aforementioned eighth gear 602 has m=10, Z=115, and β=15° right; the third gear 307 has m=10, Z=28, and β=15° left; the second gear 306 has m=8 and Z=78; the first gear 304 has m=6 and Z=62; the fifth gear 502 has m=8 and Z=21; the sixth gear 503 has m=6 and Z=70; the seventh gear 504 has m=6, Z=83, and β=15° right; and the fourth gear 403 has m=6, Z=26, and β=15° left. Here, m is the module of the gear, z is the number of teeth, and β is the rotation angle of the gear.

[0092] The present invention also provides a machine tool having the spindle.

[0093] The structure of the machine tool is shown in the attached figure. Figure 11 and attached Figure 12 As shown, the device includes a bed 7, on which a slag-discharging groove 703 is provided. The length direction of the slag-discharging groove 703 is the same as the length direction of the bed 7. A slag-discharging auger 10 is installed inside the slag-discharging groove 703, and the top of the slag-discharging auger 10 is open to facilitate the falling of debris during the processing.

[0094] Two parallel second slide rails 704 are fixedly installed on the top of the bed 7, and the second slide rails 704 slide in cooperation with the column 11.

[0095] The bed 7 is also equipped with a first lead screw 705 driven by a first motor 707. A first nut slider is mounted on the first lead screw 705, and the first nut slider is bolted to the column 11. The first lead screw 705 is located between two second slide rails 704.

[0096] The two second sliding rails 704 are located on the same side of the slag trough 703.

[0097] The two third sliding rails 1101 are fixedly installed on the column 11 and are arranged along the height direction of the column 11. The two third sliding rails 1101 are respectively in sliding cooperation with the corresponding sliding blocks fixedly installed on the sliding plate 1104.

[0098] The third sliding rails 1101 are located on the side of the column 11 close to the slag trough 703

[0099] The swivel head 1107 is fixedly installed on the sliding plate 1104, and the mounting plate 1105 is fixedly installed on the output shaft of the swivel head 1107. The main shaft is fixedly installed on the mounting plate 1105.

[0100] The two fourth motors 1106 are also fixedly installed on the mounting plate 1105, and the output shafts of the two fourth motors 1106 are respectively connected with the corresponding second shaft bodies 401 through couplings.

[0101] The power of the fourth motor 1106 in the embodiment is 80 kW.

[0102] The bottom of the sliding plate 1104 is connected with the third screw rod 1103 through the third nut block, the third screw rod 1103 is installed on the column 11 and located between the two third sliding rails 1101.

[0103] One end of the third screw rod 1103 is connected with the output end of the third motor 1102 through a coupling, and the third motor 1102 is fixedly installed on the top of the column 11.

[0104] The top of the bed body 7 is also fixedly installed with two first sliding rails 702 which are parallel to each other, the length direction of the two first sliding rails 702 is the same as the length direction of the bed body 7, and the two first sliding rails 702 are respectively located on the two sides of the slag trough 703.

[0105] As shown in the accompanying drawings, the two first sliding rails 702 are located on the side of the column 11 close to the slag trough 703. Figure 11 The receiving hopper 8 and the first machine box 9 are slidingly installed between the two first sliding rails 702.

[0106] The first chuck which can freely rotate is installed on the first machine box 9.

[0107] The second machine box 12 is fixedly installed on one end of the bed body 7, and the second chuck 1202 driven by the fifth motor 1201 is installed on the second machine box 12. The axis of the second chuck 1202 coincides with the axis of the first chuck.

[0108] The first chuck and the second chuck 1202 are mirror image arranged.

[0109] The first chuck and the second chuck 1202 are mirror image arranged.

[0110] The first cabinet 9 is also provided with a gear 901 driven by a second motor, which is engaged with a rack 701 fixedly installed on the bed body 7. Thus, the second motor can drive the first cabinet 9 to slide back and forth along the first slide rail 702 to adapt to workpieces of different lengths.

[0111] The top of the receiving hopper 8 is open and faces the main shaft; the bottom of the receiving hopper 8 is provided with a discharge port 801, which extends to the inside of the slagging auger 10 through the slagging groove 703.

[0112] As shown in the accompanying drawings, the receiving hopper 8 comprises a hopper body 802, and the aforementioned discharge port 801 is fixedly installed at the bottom of the hopper body 802. Figure 13 A transition hopper 805 is fixedly installed at the top of the hopper body 802, which is a cylindrical structure with both ends open, and the top area of the transition hopper 805 is larger than the bottom area. The bottom area of the transition hopper 805 is equal to the top area of the hopper body 802, and the two areas are smoothly connected.

[0113] The provision of the transition hopper 805 can make the opening of the receiving hopper 8 larger, so that the debris can fall into the receiving hopper 8 smoothly without falling elsewhere. The provision of a relatively similar hopper body 802 can make the receiving hopper 8 be installed smoothly between the two first slide rails 702, and can make the debris slide smoothly to the discharge port 801.

[0114] The two ends of the hopper body 802 are respectively fixedly installed with a first connecting block 803 and a second connecting plate 8010, wherein the second connecting plate 8010 is located at one end of the hopper body 802 close to the column 11, and the first connecting block 803 is located at one end of the hopper body 802 away from the column 11. That is, the first connecting block 803 and the second connecting plate 8010 are respectively located on both sides of the slagging groove 703.

[0115] The end of the second connecting plate 8010 away from the hopper body 802 is fixedly connected with the column 11. Thus, the receiving hopper 8 can move synchronously with the column 11, and the debris generated during the machining of the workpiece can directly fall into the receiving hopper 8 without splashing to other places, reducing the difficulty of subsequent cleaning.

[0116] The bottom of the first connecting block 803 is fixedly installed with a first connecting block 803, and the bottom of the second connecting plate 8010 is fixedly installed with a second connecting block 8012. The first connecting block 803 and the second connecting block 8012 are respectively slidably connected with the first slide rail 702 through corresponding sliding blocks.

[0117] The bed body 7 is also provided with a second lead screw 706, and the bottom of the second connecting plate 8010 is fixedly installed with a second nut sliding block 8011 which is threadedly connected with the second lead screw 706.

[0118] One end of the second lead screw 706 is fixedly installed with a driven synchronous wheel, and one end of the first lead screw 705 is fixedly installed with a driving synchronous wheel. The driven synchronous wheel and the driving synchronous wheel are connected through a synchronous belt.

[0119] The second lead screw 706 can reduce the burden of the first lead screw 705. Of course, when the second lead screw 706 is arranged, the second connecting plate 8010 can not be fixedly connected with the column 11.

[0120] A baffle plate 806 is fixedly installed at the top of the transition hopper 805 and away from one end of the column 11. The baffle plate 806 can prevent debris from splashing out of the machine tool,

[0121] Two limiting guide rails 807 are fixedly installed at the top of the transition hopper 805 and close to one end of the column 11. The two limiting guide rails 807 are both provided with a sliding groove 8015 extending along the height direction of the limiting guide rail 807, and the sliding grooves 8015 on the two limiting guide rails 807 are oppositely arranged.

[0122] A pull rod 8013 is slidingly installed between the two sliding grooves 8015, that is, the two ends of the pull rod 8013 are slidingly installed in the corresponding sliding grooves 8015.

[0123] The top of the pull rod 8013 is fixedly connected with the shell of the swing head 1107 through two connecting columns 8014.

[0124] An automatic rebound shaft 809 is fixedly installed at the end of the transition hopper 805 close to the column 11, that is, the end where the limiting guide rail 807 is installed. The automatic rebound shaft 809 is installed with a material blocking cloth 808, and the end of the material blocking cloth 808 is fixedly connected with the pull rod 8013. Therefore, the material blocking cloth 808 is located between the two limiting guide rails 807 and can move with the swing head 1107 to realize up and down movement, and restrict the tool on the main shaft between the material blocking cloth 808 and the baffle plate 806 to prevent debris from splashing onto the bed body 7 and increase the difficulty of subsequent cleaning.

[0125] The material receiving hopper 8 can prevent debris from splashing along the width direction of the bed body 7. Most of the debris will fall into the material receiving hopper 8, and a small part will directly fall into the slag discharge chute 703 during the rotation of the workpiece, and finally all will be discharged through the slag discharge auger 10.

[0126] The structure of the aforementioned automatic rebound shaft 809 is shown in the accompanying drawings Figure 15 The structure of the aforementioned automatic rebound shaft 809 is shown in the accompanying drawings

[0127] A guide plate 8017 is also fixedly installed on the housing 8016. The guide plate 8017 is fixedly connected to the transition bucket 805, and the guide plate 8017 is located between the limit guide rail 807 and the opening of the housing 8016, providing guidance for the movement of the baffle cloth 808.

[0128] As attached Figure 16 Appendix Figure 17 and attached Figure 18 As shown, the reel includes a shaft body 8018, and auxiliary shaft bodies 8020 are threadedly installed at both ends of the shaft body 8018. That is, the shaft body 8018 is provided with an internal thread blind hole, and the auxiliary shaft body 8020 is provided with an external thread that matches the internal thread blind hole.

[0129] The diameter of the auxiliary shaft 8020 is smaller than the diameter of the shaft 8018.

[0130] The aforementioned baffle cloth 808 is wound around the shaft 8018

[0131] Both ends of the housing 8016 are provided with limiting cylinders 8021, and the auxiliary shaft 8020 extends into the corresponding limiting cylinder 8021 and rotates with the limiting cylinder 8021.

[0132] A torsion spring 8019 is also fitted on the auxiliary shaft 8020. Specifically, the torsion spring 8019 is fitted on the outside of the auxiliary shaft 8020, and its first end is inserted into the first slot 8024, which is opened on the auxiliary shaft 8020.

[0133] The second end of the torsion spring 8019 is sleeved on the retaining shaft 8023, and the retaining shaft 8023 is fixedly installed inside the housing 8016.

[0134] When the baffle cloth 808 is pulled, it drives the roller to rotate, at which point the two torsion springs 8019 store force. When the swing head 1107 moves downward, the roller rotates in the opposite direction due to the action of the two torsion springs 8019, and the baffle cloth 808 automatically winds onto the shaft 8018. Therefore, the baffle cloth 808 is always in a taut state, and when debris splashes onto the baffle cloth 808, it immediately falls into the bucket body 802 along the baffle cloth 808.

[0135] A second slot 8025 is provided on the shaft 8018, and a fastener is installed in the second slot 8025. The fastener is fixedly connected to the second end of the baffle cloth 808.

[0136] The structure of the fastener is shown in the attached figure. Figure 19 As shown, it includes a plate 8026, the first end of which is fixedly connected to the second end of the baffle cloth 808, and a trapezoidal plug is fixedly installed on the second end of the plate 8026.

[0137] The shape of the second slot 8025 is the same as that of the fastener.

[0138] The reel further comprises two limiting discs 8022, which are respectively located at two ends of the shaft body 8018 and have a diameter greater than that of the shaft body 8018. The distance between the two limiting discs 8022 is equal to the width of the material blocking cloth 808.

[0139] The limiting disc 8022 is extruded between the auxiliary shaft body 8020 and the shaft body 8018 by the auxiliary shaft body 8020. Specifically, the middle part of the limiting disc 8022 is provided with a through hole with a diameter less than that of the auxiliary shaft body 8020, and the end part of the auxiliary shaft body 8020 is provided with a threaded column which is threadedly connected with the inner threaded blind hole by penetrating the limiting disc 8022.

[0140] During installation, the second section of the material blocking cloth 808 is first fixed to the plate body 8026, then the fixing member is inserted into the second clamping groove 8025, then the torsional spring 8019 is sleeved on the auxiliary shaft body 8020, then the limiting disc 8022 is installed, and finally the entire reel is installed in the shell 8016.

[0141] Obviously, the above embodiments are merely examples for the purpose of clarity and are not intended to limit the embodiments. Based on the above description, those skilled in the art can make other different forms of changes or modifications. It is unnecessary and impossible to enumerate all the embodiments. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A spindle for an ultra-heavy-duty horizontal turning and milling machine tool, characterized in that: The spindle assembly kit (6) is rotatably mounted in the middle of the spindle housing kit (1). Both sides of the spindle housing kit (1) of the spindle assembly kit (6) are equipped with drive gear modules. The spindle assembly kit (6) includes a spindle body (601) rotatably connected to the spindle housing kit (1) and equipped with an eighth gear (602). The drive gear module includes a first shaft assembly kit (3), a second shaft assembly kit (4), and a third shaft assembly kit (5) that are rotatably engaged with the spindle housing kit (1). The first shaft assembly kit (3) includes a first shaft (301), the first shaft (301) is provided with a spline and a third gear (307), the third gear (307) meshes with an eighth gear (602), a spline sleeve (305) meshes on the spline, a second gear (306) is installed at the first end of the spline sleeve (305), a first gear (304) is installed at the second end, and a shift fork groove (308) is provided on the side of the second gear (306) near the first gear (304); The third shaft assembly kit (5) includes a third shaft (501), on which a fifth gear (502), a sixth gear (503), and a seventh gear (504) are sequentially mounted. The sixth gear (503) can mesh with the first gear (304), and the fifth gear (502) can mesh with the second gear (306). The second shaft assembly kit (4) includes a second shaft (401), on which a fourth gear (403) meshes with a seventh gear (504); the second shaft (401) is connected to a motor drive. The shift fork slot (308) matches the shift fork assembly (2); The span of the spindle assembly kit (6) is 1600mm.

2. The spindle of the ultra-heavy-duty horizontal turning and milling composite machine tool according to claim 1, characterized in that, The shift fork assembly (2) includes a shift fork (203) that matches the shift fork groove (308). The two ends of the shift fork (203) are slidably engaged with the first guide rod (202) and the second guide rod (204) respectively. The first guide rod (202) and the second guide rod (204) are fixedly installed on the spindle housing assembly (1). The shift fork (203) is also driven by a hydraulic cylinder (201) installed on the spindle housing assembly (1).

3. The spindle of the ultra-heavy-duty horizontal turning and milling composite machine tool according to claim 1 or 2, characterized in that, The eighth gear (602) has m=10, Z=115, β=15° right; the third gear (307) has m=10, Z=28, β=15° left; the second gear (306) has m=8, Z=78; the first gear (304) has m=6, Z=62; the fifth gear (502) has m=8, Z=21; the sixth gear (503) has m=6, Z=70; the seventh gear (504) has m=6, Z=83, β=15° right; and the fourth gear (403) has m=6, Z=26, β=15° left.

4. The spindle of the ultra-heavy-duty horizontal turning and milling composite machine tool according to claim 3, characterized in that, The second end of the main shaft (601) is bolted to the first end of the drive shaft, and the second end of the drive shaft is connected to the input end of the encoder (606).

5. The spindle of the ultra-heavy-duty horizontal turning and milling composite machine tool according to claim 4, characterized in that, The first and second ends of the main shaft (601) are rotatably engaged with the main shaft housing assembly (1) via the fifth bearing component (604) and the sixth bearing component (605), respectively. The fifth bearing component (604) includes at least one cylindrical roller bearing with a tapered bore and at least one thrust cylindrical roller bearing.

6. A machine tool, characterized in that, The spindle of the ultra-heavy-duty horizontal turning and milling machine tool as described in any one of claims 1 to 5.

7. The machine tool according to claim 6, characterized in that, The system includes a bed (7), on which a column (11) is slidably mounted. The main shaft is mounted on the column (11) via a swing head (1107). A slag-discharging trough (703) is provided on the bed (7), and the column (11) is located on one side of the slag-discharging trough (703). A slag-discharging auger (10) is installed inside the slag-discharging trough (703), and the top of the slag-discharging auger (10) is open. Two parallel first slide rails (702) are also fixedly mounted on the top of the bed (7). The two first slide rails (702) are located on both sides of the slag-discharging trough (703). A bucket (802) is slidably mounted between the two first slide rails (702). The bucket (802) can move synchronously with the column (11). A transition bucket (805) is fixedly mounted on the top of the bucket (802). A baffle (806) is fixedly installed at the top of the transition bucket (805) and at the end away from the column (11). Two limiting guide rails (807) are fixedly installed at the top of the transition bucket (805) and at the end near the column (11). A pull rod (8013) is slidably installed between the two limiting guide rails (807). The top of the pull rod (8013) is fixedly connected to the shell of the swing head (1107) through a connecting column (8014). An automatic rebound shaft (809) is fixedly installed at the end of the transition bucket (805) near the column (11). A baffle cloth (808) is installed on the automatic rebound shaft (809). The end of the baffle cloth (808) is fixedly connected to the pull rod (8013). A discharge port (801) is provided at the bottom of the bucket body (802). The discharge port (801) extends into the slag discharge auger (10).

8. The machine tool according to claim 7, characterized in that, The automatic rebound shaft (809) includes a housing (8016), a shaft (8018), and a torsion spring (8019). Auxiliary shafts (8020) are mounted at both ends of the shaft (8018), and limiting sleeves (8021) are provided at both ends of the housing (8016). The auxiliary shafts (8020) extend into the corresponding limiting sleeves (8021) and rotate in cooperation with them. The torsion spring (8019) is sleeved around the auxiliary shafts (8020). The first end of the torsion spring (8019) is inserted into the first slot (8024), which is opened on the auxiliary shaft (8020). The second end of the torsion spring (8019) is sleeved on the retaining shaft (8023), which is fixedly installed inside the housing (8016). The baffle cloth (808) is wrapped around the shaft (8018), and the first end of the baffle cloth (808) passes through the opening of the housing (8016) and is fixedly connected to the pull rod (8013).

9. The machine tool according to claim 8, characterized in that, A second slot (8025) is provided on the shaft (8018), and a fixing member is installed in the second slot (8025). The fixing member is fixedly connected to the second end of the baffle cloth (808).

10. The machine tool according to claim 9, characterized in that, Both ends of the shaft (8018) are also equipped with limiting disks (8022), the diameter of which is larger than the diameter of the shaft (8018).

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