Main shaft of extra-heavy horizontal turning and milling composite machine tool and machine tool with main shaft

Abstract

The invention relates to the technical field of numerical control machine tools, and particularly provides a main shaft of an extra-heavy horizontal turning and milling composite machine tool and a machine tool with the main shaft. Wherein the main shaft comprises a box body suite, a main shaft assembly suite is rotationally mounted in the middle of the box body suite, driving gear modules and gear shifting fork suite are mounted on the main shaft box body suite on the two sides of the main shaft assembly suite, and the driving gear modules are meshed with the main shaft assembly suite and used for driving the main shaft assembly suite to rotate; the gear shifting fork suite is used for driving a gear piece on the gear module, and high-gear output, low-gear output and neutral-gear output of the driving gear module are achieved. The rigidity is good, meanwhile, the stress faces of the plane roller bearings and the front bearing hole and the rear bearing hole of the box body are machined together, perpendicularity is easy to guarantee, the unbalance loading stress condition of the plane bearings is weakened, and meanwhile the axial endplay precision of the main shaft is better.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machine tools, and particularly relates to a spindle of an ultra-heavy horizontal turning and milling compound machine tool and a machine tool with the spindle. Background Art

[0002] The spindle drive design of traditional large-scale numerical control horizontal lathes generally uses a set of high-power low-speed main motors with a wide speed regulation ratio to drive the spindle to rotate through a set of reduction devices, and the spindle can obtain a relatively wide constant power speed range through hydraulic or electrical gear shifting operations. This structural design is relatively mature and the most common transmission method in the design of large-scale numerical control horizontal lathes both at home and abroad. This traditional transmission structure has the advantages of mature and simple structure, but there are defects of insufficient strength and accuracy when this structure is applied to heavy machine tools. Summary of the Invention

[0003] In order to solve the defects in the prior art, the present invention provides a spindle of an ultra-heavy horizontal turning and milling compound machine tool and a machine tool with the spindle, which are specifically realized through the following technical solutions: A spindle of an ultra-heavy horizontal turning and milling compound machine tool includes a spindle assembly kit rotatably installed in the middle of a spindle box kit. Drive gear modules are installed on the spindle box kits on both sides of the spindle assembly kit. The spindle assembly kit includes a spindle body rotatably connected to the spindle box kit and provided with an eighth gear. The drive gear module includes a first shaft assembly kit, a second shaft assembly kit, and a third shaft assembly kit rotatably matched with the spindle box kit. The first shaft assembly kit includes a first shaft body. The first shaft body is provided with a spline and a third gear. The third gear meshes with the eighth gear. A spline sleeve is meshed on the spline. A second gear is installed at the first end of the spline sleeve, and a first gear is installed at the second end. A fork groove is provided on one side of the second gear close to the first gear. The third shaft assembly kit includes a third shaft body. A fifth gear, a sixth gear, and a seventh gear are sequentially installed on the third shaft body. The sixth gear can mesh with the first gear, and the fifth gear can mesh with the second gear. The second shaft assembly kit includes a second shaft body. A fourth gear meshing with the seventh gear is installed on the second shaft body. The second shaft body is connected to a motor drive. The fork groove is matched with a shift fork kit. The span of the spindle assembly kit is 1600 mm.

[0004] The shift fork kit includes a shift fork that matches the fork groove. The two ends of the shift fork are respectively in sliding fit 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 housing kit. The shift fork is also drivingly connected to a hydraulic cylinder installed on the main shaft housing kit.

[0005] For the eighth gear, m = 10, Z = 115, β = 15° right; for the third gear, m = 10, Z = 28, β = 15° left; for the second gear, m = 8, Z = 78; for the first gear, m = 6, Z = 62; for the fifth gear, m = 8, Z = 21; for the sixth gear, m = 6, Z = 70; for the seventh gear, m = 6, Z = 83, β = 15° right; for the fourth gear, m = 6, Z = 26, β = 15° left.

[0006] The second end of the main shaft body is installed with the first end of a transmission shaft through bolts. The second end of the transmission shaft is drivingly connected to the input end of an encoder.

[0007] The first end and the second end of the main shaft body are respectively in rotational fit with the main shaft housing kit through a fifth bearing member and a sixth bearing member. The fifth bearing member includes at least one tapered bore cylindrical roller bearing and at least one thrust cylindrical roller bearing.

[0008] A machine tool has a main shaft of the ultra-heavy horizontal turning and milling composite machine tool as described above.

[0009] The machine tool includes a bed body. A column is slidably installed on the top of the bed body. The main shaft is installed on the column through a swing head. A slag leakage groove is provided on the bed body. 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 parallel first slide rails are fixedly installed on the top of the bed body. The two first slide rails are respectively located on both sides of the slag leakage groove. A bucket body is slidably installed between the two first slide rails. The bucket body can move synchronously with the column. A transition bucket is fixedly installed on the top of the bucket body. A baffle is fixedly installed at one end of the top of the transition bucket away from the column. Two limit guide rails are fixedly installed at one end of the top of the transition bucket close to the column. A pull rod is slidably installed between the two limit guide rails. The top of the pull rod is fixedly connected to the housing of the swing head through a connecting column. An automatic return shaft is fixedly installed at one end of the transition bucket close to the column. A baffle cloth is installed on the automatic return shaft. The end of the baffle cloth is fixedly connected to the pull rod. A discharge port is provided at the bottom of the bucket body, and the discharge port extends into the interior of the slag discharging auger.

[0010] The automatic rebound shaft includes a housing, a shaft body, and a torsion spring. Auxiliary shaft bodies are installed at both ends of the shaft body. Limiting cylinders are provided at both ends of the housing. 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. The first end of the torsion spring is inserted into a first card slot opened on the auxiliary shaft body. The second end of the torsion spring is sleeved on a card shaft, and the card shaft is fixedly installed inside the housing. The material blocking cloth is wound around the shaft body, and the first end of the material blocking cloth passes through the opening of the housing and is fixedly connected to a pull rod.

[0011] A second card slot is opened on the shaft body, and a fixing member is installed in the second card slot. The fixing member is fixedly connected to the second end of the material blocking cloth.

[0012] Limiting disks are also installed at both ends of the shaft body, and the diameter of the limiting disks is larger than that of the shaft body.

[0013] The technical solution of the present invention has the following advantages: (1) The front support of the main shaft body uses a tapered bore cylindrical roller bearing to bear the radial force and a thrust cylindrical roller bearing to bear the axial force. These two types of bearings can bear the highest rated load among various bearings of the same specification, which can ensure better rigidity and service life of the bearings. In addition, different from the traditional main shaft structure, this structure realizes the separate installation and adjustment of the radial bearing and the axial bearing. During the adjustment process, the two groups of bearings do not interfere with each other. The structure is simple and the adjustment is convenient, which is convenient for the main shaft to achieve better rotational accuracy. In addition, different from general horizontal lathes, the workpiece of a heavy horizontal lathe is borne by the top holding force of the main shaft and the tailstock. When the top holds the workpiece, the axial component force of the workpiece borne is extremely large. Therefore, this structure cancels the stress pad for plane bearing positioning in the traditional main shaft structure and directly installs the thrust bearing in the box hole. The axial component force generated by workpiece top holding is completely borne by the vertical wall. The vertical wall and the box are integrally cast, with good rigidity. At the same time, the stress surface of the plane roller bearing is processed together with the front and rear bearing holes of the box, and the perpendicularity is easy to guarantee, weakening the eccentric loading situation of the plane bearing. At the same time, the axial runout accuracy of the main shaft is better.

[0014] (2) As a key component of the machine tool, the reliability of the main shaft operation is extremely important. Therefore, temperature detection and sensing devices are installed on both the front and rear bearings of the main shaft body to monitor the temperature change of the bearings during the machining process in real time, avoid sudden temperature changes of the bearings caused by insufficient lubrication and other situations, prevent problems such as main shaft damage, and send signals in time when problems occur to avoid major accidents. (3) Traditional lathe spindle structure: To facilitate the machining of slender shaft parts, a through hole is generally provided in the traditional spindle body. Therefore, the encoder is connected to the spindle body in the form of a 1:1 drive gear or a synchronous toothed belt. Inevitably, a certain reaction deviation will occur during the transmission process. For heavy-duty horizontal lathe spindles, to improve the spindle strength, a solid spindle body structure is generally adopted, which provides the condition for the direct connection of the encoder to the spindle body. Therefore, we have adopted the structure of directly connecting the encoder to the spindle body in the figure. This structure makes the encoder feedback signal more accurate, the spindle body orientation accuracy higher, and is more conducive to machining processes that require frequent forward and reverse rotations, such as thread machining.

[0015] (4) During the machining process of the machine tool, it can collect chips, prevent the chips from flying everywhere, and reduce the difficulty of subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic disassembled structure diagram of the present invention; Figure 2 It is a schematic structure diagram of the spindle box kit; Figure 3 It is a schematic structure diagram of the shift fork kit; Figure 4 It is a schematic structure diagram of the first shaft assembly kit; Figure 5 It is a schematic structure diagram of the second shaft assembly kit; Figure 6 It is a schematic structure diagram of the third shaft assembly kit; Figure 7 It is a schematic structure diagram of the spindle assembly kit; Figure 8 It is a schematic plane expansion diagram of the present invention; Figure 9 It is a schematic plane expansion diagram of the shift fork kit; Figure 10 It is a schematic simplified diagram of the shafting structure of the present invention; Figure 11 It is a schematic structure diagram of the machine tool; Figure 12 For Figure 11 the schematic diagram of the mechanism at position A in Figure 13 It is a schematic structure diagram of the material receiving hopper; Figure 14 is Figure 13 a schematic structural diagram of part B in Figure 15 a schematic structural diagram of the automatic rebound shaft; Figure 16 is a schematic internal structural diagram of the automatic rebound shaft; Figure 17 is Figure 16 a schematic structural diagram of part C in Figure 18 a schematic structural diagram of the reel; Figure 19 is a schematic structural diagram of the fixing part.

[0018] In the figure, 1 - main shaft box kit, 101 - first mounting seat, 102 - second mounting seat, 103 - third mounting seat, 104 - fourth mounting seat, 105 - fifth mounting seat, 106 - sixth mounting seat; 2 - shift fork kit, 201 - hydraulic cylinder, 202 - first guide rod, 203 - shift fork, 204 - second guide rod, 205 - connecting rod; 3 - first shaft assembly kit, 301 - first shaft body, 302 - first bearing part, 303 - second bearing part, 304 - first gear, 305 - spline sleeve, 306 - second gear, 307 - third gear, 308 - shift fork groove; 4 - second shaft assembly kit, 401 - second shaft body, 402 - third bearing part, 403 - fourth gear, 404 - rotary seal ring; 5 - third shaft assembly kit, 501 - third shaft body, 502 - fifth gear, 503 - sixth gear, 504 - seventh gear, 505 - fourth bearing part; 6 - main shaft assembly kit, 601 - main shaft body, 602 - eighth gear, 603 - center point, 604 - fifth bearing part, 605 - sixth bearing part, 606 - encoder, 607 - coupling; 7 - bed, 701 - rack, 702 - first slide rail, 703 - slag leakage trough, 704 - second slide rail, 705 - first lead screw, 706 - second lead screw, 707 - first motor; 8 - Material receiving hopper, 801 - Discharge opening, 802 - Hopper body, 803 - First connecting block, 804 - First connecting plate, 805 - Transition hopper, 806 - Baffle, 807 - Limit guide rail, 808 - Baffle cloth, 809 - Automatic rebound shaft, 8010 - Second connecting plate, 8011 - Second nut slider, 8012 - Second connecting block, 8013 - Pull rod, 8014 - Connecting column, 8015 - Chute, 8016 - Housing, 8017 - Guide plate, 8018 - Shaft body, 8019 - Torsion spring, 8020 - Auxiliary shaft body, 8021 - Limit cylinder, 8022 - Limit disc, 8023 - Clamping shaft, 8024 - First card slot, 8025 - Second card slot, 8026 - Plate body, 8027 - Plug block; 9 - First chassis, 901 - Gear; 10 - Slag discharge auger; 11 - Column, 1101 - Third slide rail, 1102 - Third motor, 1103 - Third lead screw, 1104 - Slide plate, 1105 - Mounting plate, 1106 - Fourth motor, 1107 - Swing head; 12 - Second chassis, 1201 - Fifth motor, 1202 - Second chuck. Detailed implementation mode

[0019] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred module or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] As shown in the attached Figure 1 to the attached Figure 12 figures, the present invention provides a spindle of an ultra-heavy horizontal turning and milling compound machine tool.

[0024] The shaft includes a spindle box assembly 1. A spindle assembly kit 6 is rotatably installed in the middle of the spindle box assembly 1. Drive gear modules and shift fork kits 2 are installed on the spindle box assembly 1 on both sides of the spindle assembly kit 6. The drive gear module meshes with the spindle assembly kit 6 to drive the spindle assembly kit 6 to rotate; the shift fork kit 2 is used to drive the gear parts on the gear module to realize the high gear, low gear, and neutral gear outputs of the drive gear module.

[0025] Each drive gear module is driven by a corresponding motor.

[0026] The structure of the spindle assembly kit 6 is as shown in the attached Figure 7 figures, and includes a spindle body 601. The first end and the second end of the spindle body 601 are respectively fitted with a corresponding sixth mounting seat 106 through a fifth bearing member 604 and a sixth bearing member 605. The sixth mounting seat 106 is fixed on the spindle box assembly 1.

[0027] The first end of the spindle body 601 passes through the spindle box assembly 1 and a center point 603 is installed. The second end is bolted with the first end of a transmission shaft. The second end of the transmission shaft is drivingly connected to the input end of an encoder 606 through 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.

[0028] An eighth gear 602 is installed in the middle of the spindle body 601 through a first shaft key. The drive gear module meshes with the eighth gear 602 to drive the spindle body 601 to rotate.

[0029] The structure of the drive gear module is as shown in the attached Figure 1 figures, and includes a first shaft assembly kit 3, a second shaft assembly kit 4, and a third shaft assembly kit 5. Among them, the second shaft assembly kit 4 is drivingly connected to the motor.

[0030] The second shaft assembly kit 4 serves as the power input end of the entire spindle structure, and its structure is as shown in the attached Figure 5As shown, it includes a second shaft body 401. A third bearing member 402 and a fourth gear 403 are installed in the middle of the second shaft body 401. Among them, the third bearing member 402 is installed on the second shaft body 401 through a shaft key. There are two installation methods for the fourth gear 403. One is to install it through a shaft key, and the other is to be integrally formed with the second shaft body 401, that is, the fourth gear 403 is formed by milling on the second shaft body 401.

[0031] A seventh bearing member is also installed at the first end of the second shaft body 401. Elastic retaining rings matching the seventh bearing member are provided on the second shaft body 401 on both sides of the seventh bearing member.

[0032] The seventh bearing member and the third bearing member 402 are respectively matched with corresponding fifth mounting seats 105, and the fifth mounting seats 105 are fixedly installed on the main shaft box assembly 1.

[0033] The second end of the second shaft body 401 penetrates through the main shaft box assembly 1 and is connected to the motor for driving. A rotary seal ring 404 is also installed between the second shaft body 401 and the fifth mounting seat 105.

[0034] The third shaft assembly kit 5 is a structure for transmitting power to the first shaft assembly kit 3, and its structure is as shown in the appendix Figure 6 As shown, it includes a third shaft body 501. An eighth bearing member, a fifth gear 502, a sixth gear 503, a seventh gear 504, and a fourth bearing member 505 are installed on the third shaft body 501 in sequence from the first end to the second end. Among them, the sixth gear 503, the seventh gear 504, and the fourth bearing member 505 are all installed on the third shaft body 501 through shaft keys and are all located on one side close to the second end of the third shaft body 501; the eighth bearing member and the fifth gear 502 are located on one side close to the first end of the third shaft body 501. There is a gap between the fifth gear 502 and the sixth gear 503.

[0035] The eighth bearing member and the fourth bearing member 505 are respectively matched with corresponding fourth mounting seats 104, and the fourth mounting seats 104 are fixedly installed on the main shaft box assembly 1.

[0036] The diameter of the seventh gear 504 is larger than that of the sixth gear 503 and is used to mesh with the fourth gear 403, so as to transmit the power on the second shaft assembly kit 4 to the third shaft assembly kit 5.

[0037] Preferably, the aforementioned eighth bearing member, fifth gear 502, sixth gear 503, seventh gear 504, fourth bearing member 505, sixth gear 503, seventh gear 504, and fourth bearing member 505 are installed on the third shaft body 501 through shaft keys. Of course, they can also be installed in a manner of being limited by an elastic retaining ring. The fifth gear 502 can also be integrally formed with the third shaft body 501, that is, obtained by milling on the third shaft body 501.

[0038] The first shaft assembly kit 3 is used to transmit the power of the third shaft assembly kit 5 to the main shaft assembly kit 6, and its structure is as shown in the appendix Figure 4 and includes a first shaft body 301. A ninth bearing member, a third gear 307, and a second bearing member 303 are fixedly installed at the first end of the first shaft body 301, wherein the third gear 307 is integrally formed with the first shaft body 301; a first bearing member 302 is fixedly installed at the second end of the first shaft body 301.

[0039] The third gear 307 meshes with the eighth gear 602.

[0040] The ninth bearing member, the second bearing member 303, and the first bearing member 302 are respectively matched with corresponding third mounting seats 103, and the third mounting seats 103 are fixedly installed on the main shaft housing kit 1.

[0041] A spline is provided in the middle of the first shaft body 301, and a spline sleeve 305 is meshed on the spline. A second gear 306 is fixedly installed at the first end of the spline sleeve 305 through a shaft key, and a first gear 304 is fixedly installed at the second end, and 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.

[0042] The diameter of the first gear 304 is smaller than the diameter of the sixth gear 503.

[0043] A fork groove 308 is provided on one side of the second gear 306 close to the first gear 304.

[0044] The shift fork kit 2 is provided with a shift fork 203. The shift fork 203 is located in the 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 first gear 304 not engaging with the sixth gear 503 and the second gear 306 not engaging with the fifth gear 502 either.

[0045] The third gear 307 meshes with the eighth gear 602 on the main shaft assembly kit 6, so as to finally transmit the power of the motor to the main shaft body 601.

[0046] When the first gear 304 meshes with the sixth gear 503, the main shaft body 601 realizes high-speed rotation; when the second gear 306 meshes with the fifth gear 502, the main shaft body 601 realizes low-speed rotation; when the first gear 304 does not mesh with the sixth gear 503 and the second gear 306 does not mesh with the fifth gear 502 either, the first shaft assembly kit 3 stops rotating to realize neutral gear.

[0047] The structure of the shift fork kit 2 is as shown in the appendix Figure 2 and includes a hydraulic cylinder 201. The cylinder block of the hydraulic cylinder 201 is fixedly installed on the first mounting seat 101, and the first mounting seat 101 is fixedly installed on the main shaft housing kit 1. The output end of the hydraulic cylinder 201 extends into the main shaft housing kit 1 and is detachably installed with a connecting rod 205 by means of threads or the like. One end of the connecting rod 205 away from the hydraulic cylinder 201 is also detachably installed with a shift fork 203. Both ends of the shift fork 203 are slidably engaged with a first guide rod 202 and a second guide rod 204 respectively. Both ends of the first guide rod 202 and the second guide rod 204 are fixedly connected to the corresponding second mounting seats 102, and the second mounting seats 102 are fixedly installed on the main shaft housing kit 1.

[0048] In this embodiment, the fifth bearing member 604 includes a tapered bore cylindrical roller bearing and a thrust cylindrical roller bearing. The two bearings are installed independently and adjusted separately. 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 is conducive to the main shaft achieving better rotational accuracy.

[0049] As shown in the appendix Figure 10 both the fifth bearing member 604 and the sixth bearing member 605 include two bearings.

[0050] The fifth bearing member 604 includes a tapered bore cylindrical roller bearing to bear the radial force and a thrust cylindrical roller bearing to bear the axial force.

[0051] Temperature sensors matching the fifth bearing member 604 and the sixth bearing member 605 are also installed on the main shaft housing kit 1.

[0052] In this embodiment, the span of the main shaft assembly kit 6 is 1600 mm. The so-called span is the distance between the sixth bearing member 605 and the fifth bearing member 604.

[0053] For the aforementioned eighth gear 602, m = 10, Z = 115, β = 15° right; for the third gear 307, m = 10, Z = 28, β = 15° left; for the second gear 306, m = 8, Z = 78; for the first gear 304, m = 6, Z = 62; for the fifth gear 502, m = 8, Z = 21; for the sixth gear 503, m = 6, Z = 70; for the seventh gear 504, m = 6, Z = 83, β = 15° right; for the fourth gear 403, m = 6, Z = 26, β = 15° left. Among them, m is the module of the gear, z is the number of teeth of the gear, and β is the rotation angle of the gear.

[0054] The present invention also provides a machine tool having this main shaft.

[0055] The structure of the machine tool is as shown in the appendix Figure 11 and in the appendix Figure 12As shown in the figure, it includes a bed body 7. A slag leakage groove 703 is formed in the bed body 7, and the length direction of the slag leakage groove 703 is the same as that of the bed body 7. A slag discharging auger 10 is installed in the slag leakage groove 703, and the top of the slag discharging auger 10 is open to facilitate the falling of debris during the processing process.

[0056] Two parallel second slide rails 704 are fixedly installed on the top of the bed body 7, and the second slide rails 704 are slidably matched with the columns 11.

[0057] A first lead screw 705 driven by a first motor 707 is also installed on the bed body 7. A first nut slider is installed on the first lead screw 705, and the first nut slider is connected to the column 11 by bolts. The first lead screw 705 is located between the two second slide rails 704.

[0058] The two second slide rails 704 are located on the same side of the slag leakage groove 703.

[0059] Two parallel third slide rails 1101 are fixedly installed on the column 11, and the third slide rails 1101 are arranged along the height direction of the column 11. The two third slide rails 1101 are respectively slidably matched with the corresponding sliders fixedly installed on the slide plate 1104.

[0060] The third slide rails 1101 are located on the side of the column 11 close to the slag leakage groove 703 A swing head 1107 is fixedly installed on the slide plate 1104, and a mounting plate 1105 is fixedly installed on the output shaft of the swing head 1107. The aforementioned main shaft is fixedly installed on the mounting plate 1105.

[0061] 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 to the corresponding second shaft bodies 401 through couplings.

[0062] In this embodiment, the power of the fourth motor 1106 is 80 kilowatts.

[0063] The bottom of the slide plate 1104 is connected to a third lead screw 1103 through a third nut slider. The third lead screw 1103 is installed on the column 11 and is located between the two third slide rails 1101.

[0064] One end of the third lead screw 1103 is connected to the output end of a third motor 1102 through a coupling, and the third motor 1102 is fixedly installed on the top of the column 11.

[0065] Two parallel first slide rails 702 are also fixedly installed on the top of the bed body 7. The length directions of the two first slide rails 702 are the same as that of the bed body 7 and are respectively located on both sides of the slag leakage groove 703.

[0066] As attached Figure 11As shown, both of these two first slide rails 702 are located on the side of the column 11 close to the slag leakage trough 703.

[0067] A material receiving hopper 8 and a first chassis 9 are slidably installed between the two first slide rails 702.

[0068] A first chuck that can rotate freely is installed on the first chassis 9.

[0069] One end of the bed body 7 is fixedly installed with a second chassis 12, and a second chuck 1202 driven by a fifth motor 1201 is installed on the second chassis 12; the axis of the second chuck 1202 coincides with the axis of the first chuck.

[0070] The first chuck and the second chuck 1202 are arranged in a mirror image.

[0071] A gear 901 driven by a second motor is also installed on the first chassis 9, and this gear 901 meshes with a rack 701 fixedly installed on the bed body 7. Thus, the second motor can drive the first chassis 9 to slide back and forth along the first slide rail 702 to adapt to workpieces of different lengths.

[0072] The top of the material receiving hopper 8 is open and faces the main shaft; a discharge port 801 is provided at the bottom of the material receiving hopper 8, and the discharge port 801 extends through the slag leakage trough 703 to the inside of the slag discharging auger 10.

[0073] As shown in the appendix Figure 13 As shown, the material receiving hopper 8 includes a hopper body 802, and the aforementioned discharge port 801 is fixedly installed at the bottom of the hopper body 802. A transition hopper 805 is fixedly installed at the top of the hopper body 802. The transition hopper 805 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 there is a smooth transition between the two.

[0074] By setting the transition hopper 805, the opening of the material receiving hopper 8 can be made larger, so that the debris can fall into the material receiving hopper 8 smoothly without falling elsewhere. By setting a hopper body 802 that is relatively similar, the material receiving hopper 8 can be smoothly installed between the two first slide rails 702, and the debris can slide smoothly towards the discharge port 801.

[0075] A first connection block 803 and a second connection plate 8010 are respectively fixedly installed at both ends of the hopper body 802. Among them, the second connection plate 8010 is located at the end of the hopper body 802 close to the column 11, and the first connection block 803 is located at the end of the hopper body 802 far from the column 11. That is, the first connection block 803 and the second connection plate 8010 are respectively located on both sides of the slag leakage trough 703.

[0076] One end of the second connecting plate 8010 away from the bucket body 802 is fixedly connected to the column 11. Thus, the material receiving hopper 8 can move synchronously with the column 11, and the debris generated during the workpiece processing will directly fall on the material receiving hopper 8, rather than splashing to other places, reducing the subsequent cleaning difficulty.

[0077] The bottom of the first connecting block 803 is fixedly installed with the first connecting block 803, the bottom of the second connecting plate 8010 is fixedly installed with the second connecting block 8012, and the first connecting block 803 and the second connecting block 8012 are respectively in sliding fit with the first slide rail 702 through corresponding sliders.

[0078] A second lead screw 706 is also installed on the bed body 7. The bottom of the second connecting plate 8010 is fixedly installed with a second nut slider 8011, and the second nut slider 8011 is in threaded fit with the second lead screw 706.

[0079] One end of the second lead screw 706 is fixedly installed with a driven synchronous pulley, one end of the first lead screw 705 is installed with a driving synchronous pulley, and the driven synchronous pulley and the driving synchronous pulley are connected by a synchronous belt.

[0080] By setting the second lead screw 706, the burden on the first lead screw 705 can be reduced. Of course, when setting the second lead screw 706, the second connecting plate 8010 may not be fixedly connected to the column 11.

[0081] One end of the transition hopper 805 at the top and away from the column 11 is fixedly installed with a baffle 806. The baffle 806 can prevent debris from splashing outside the machine tool. Two limit guide rails 807 are fixedly installed at one end of the transition hopper 805 at the top and close to the column 11. Chute grooves 8015 are opened on both of the two limit guide rails 807. The chute grooves 8015 extend along the height direction of the limit guide rails 807, and the chute grooves 8015 on the two limit guide rails 807 are arranged facing each other.

[0082] A pull rod 8013 is slidably installed between the two chute grooves 8015, that is, both ends of the pull rod 8013 are respectively slidably installed in the corresponding chute grooves 8015.

[0083] The top of the pull rod 8013 is fixedly connected to the housing of the swing head 1107 through two connecting columns 8014.

[0084] At one end of the transition hopper 805 close to the column 11, that is, the end where the limit guide rail 807 is installed, an automatic return shaft 809 is fixedly installed. A baffle cloth 808 is installed on the automatic return shaft 809, and the end of the baffle cloth 808 is fixedly connected to the pull rod 8013. Thus, the baffle cloth 808 is located between the two limit guide rails 807 and can move up and down as the swing head 1107 moves, restricting the cutter on the main shaft between the baffle cloth 808 and the baffle 806, preventing debris from splashing onto the bed body 7 and increasing the subsequent cleaning difficulty.

[0085] By providing the material receiving hopper 8, it is possible to 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 leakage trough 703 during the rotation of the workpiece, and finally all are discharged through the slag discharge auger 10.

[0086] The structure of the aforementioned automatic return shaft 809 is as shown in the appendix Figure 15 As shown, it includes a cylindrical housing 8016. A reel is installed inside the housing 8016, and the aforementioned baffle cloth 808 is wound around the reel; an opening is provided on the housing 8016, and the first end of the baffle cloth 808 passes through the housing 8016 and is fixedly connected to the pull rod 8013.

[0087] A guide plate 8017 is also fixedly installed on the housing 8016. The guide plate 8017 is fixedly connected to the transition hopper 805, and the guide plate 8017 is located between the limit guide rail 807 and the opening of the housing 8016, providing a guiding function for the movement of the baffle cloth 808.

[0088] As shown in the appendix Figure 16 and the appendix Figure 17 and the appendix Figure 18 As shown, the reel includes a shaft body 8018. Auxiliary shaft bodies 8020 are installed at both ends of the shaft body 8018 through threads, that is, internal thread blind holes are provided on the shaft body 8018, and external threads matching the internal thread blind holes are provided on the auxiliary shaft bodies 8020.

[0089] The diameter of the auxiliary shaft body 8020 is smaller than the diameter of the shaft body 8018.

[0090] The aforementioned baffle cloth 808 is wound around the shaft body 8018 Limit cylinders 8021 are provided at both ends of the housing 8016. The auxiliary shaft body 8020 extends into the corresponding limit cylinder 8021 and is rotationally matched with the limit cylinder 8021.

[0091] A torsion spring 8019 is also sleeved on the auxiliary shaft body 8020. Specifically, the torsion spring 8019 is sleeved outside the auxiliary shaft body 8020, and its first end is inserted into the first card slot 8024, which is opened on the auxiliary shaft body 8020.

[0092] The second end of the torsion spring 8019 is sleeved on the clamping shaft 8023, and the clamping shaft 8023 is fixedly installed inside the housing 8016.

[0093] When the baffle cloth 808 is pulled, the reel will be driven to rotate, and at this time, the two torsion springs 8019 will store energy. When the swing head 1107 moves downward, due to the action of the two torsion springs 8019, the reel rotates in the reverse direction, and the baffle cloth 808 is automatically wound around the shaft body 8018. Therefore, the baffle cloth 808 is always in a taut state. When debris splashes onto the baffle cloth 808, it will immediately fall into the hopper body 802 along the baffle cloth 808.

[0094] A second card slot 8025 is formed on the shaft body 8018, and a fixing member is installed in the second card slot 8025. The fixing member is fixedly connected to the second end of the baffle cloth 808.

[0095] The structure of the fixing member is as shown in the appendix Figure 19 and includes a plate body 8026. The first end of the plate body 8026 is fixedly connected to the second end of the baffle cloth 808, and a trapezoidal plug is fixedly installed at the second end of the plate body 8026.

[0096] The shape of the second card slot 8025 is the same as that of the fixing member.

[0097] The reel further includes two limiting disks 8022, which are respectively located at both ends of the shaft body 8018, and the diameter of the limiting disks 8022 is larger than that of the shaft body 8018. The distance between the two limiting disks 8022 is equal to the width of the baffle cloth 808.

[0098] The limiting disk 8022 is pressed between the auxiliary shaft body 8020 and the shaft body 8018 through the auxiliary shaft body 8020. Specifically, a through hole with a diameter smaller than that of the auxiliary shaft body 8020 is provided in the middle of the limiting disk 8022, and a threaded post is provided at the end of the auxiliary shaft body 8020. The threaded post passes through the limiting disk 8022 and is threadedly connected to the internal threaded blind hole.

[0099] During installation, first fix the second section of the baffle cloth 808 to the plate body 8026, then insert the fixing member into the second card slot 8025, then sleeve the torsion spring 8019 on the auxiliary shaft body 8020, then install the limiting disk 8022, and finally install the entire reel in the housing 8016.

[0100] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A spindle for an ultra-heavy horizontal turning-milling machine tool, characterized in that: It comprises a spindle assembly kit (6) rotatably mounted in the middle of a spindle housing kit (1), drive gear modules being mounted on the spindle housing kits (1) on both sides of the spindle assembly kit (6), and the spindle assembly kit (6) comprising a spindle body (601) rotatably connected to the spindle housing kit (1) and mounted with an eighth gear (602); The driving gear module comprises a first shaft assembly kit (3), a second shaft assembly kit (4), and a third shaft assembly kit (5) which are rotatably matched with the spindle housing kit (1); The first shaft assembly kit (3) comprises a first shaft body (301), the first shaft body (301) being provided with a spline and a third gear (307), the third gear (307) being meshed with an eighth gear (602), a spline sleeve (305) being meshed on the spline, a second gear (306) being mounted on a first end of the spline sleeve (305), and a first gear (304) being mounted on a second end, and a shift fork groove (308) being provided on a side of the second gear (306) close to the first gear (304); The third shaft assembly kit (5) comprises a third shaft body (501), on which a fifth gear (502), a sixth gear (503), and a seventh gear (504) are sequentially mounted, the sixth gear (503) being capable of meshing with the first gear (304), and the fifth gear (502) being capable of meshing with the second gear (306); The second shaft assembly kit (4) comprises a second shaft body (401), on which a fourth gear (403) meshing with a seventh gear (504) is mounted; the second shaft body (401) is drive-connected to a motor; The shift fork groove (308) matches the shift fork kit (2); The span of the spindle assembly kit (6) is 1600 mm.

2. The spindle of the ultra-heavy horizontal turning-milling machine tool according to claim 1 is characterized in that: The shift fork kit (2) comprises a shift fork (203) matched with the shift fork groove (308), the two ends of the shift fork (203) respectively slidingly cooperate with a first guide rod (202) and a second guide rod (204), the first guide rod (202) and the second guide rod (204) are fixedly mounted on the spindle housing kit (1), and the shift fork (203) is also drivingly connected to a hydraulic cylinder (201) mounted on the spindle housing kit (1).

3. The spindle of the super heavy horizontal turning and milling 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; the fourth gear (403) has m=6, Z=26, β=15° left.

4. The spindle of the super heavy horizontal turning and milling machine tool according to claim 3 is characterized in that: The second end of the main shaft body (601) is mounted with the first end of a transmission shaft via bolts, and the second end of the transmission shaft is in transmission connection with the input end of an encoder (606).

5. The spindle of the super heavy horizontal turning and milling machine tool according to claim 4 is characterized in that: The first end and the second end of the main shaft body (601) are rotationally matched with the main shaft housing kit (1) via a fifth bearing component (604) and a sixth bearing component (605), respectively; the fifth bearing component (604) comprises at least one cylindrical roller bearing with a tapered hole and at least one thrust cylindrical roller bearing.

6. A machine tool, characterized in that: A spindle for an ultra-heavy horizontal turning-milling machine tool having the spindle of any one of claims 1 to 5.

7. The machine tool according to claim 6, characterized in that The invention comprises a bed (7), a column (11) being slidably mounted on the top of the bed (7), and the main shaft being mounted on the column (11) via a swing head (1107); a slag leakage groove (703) being provided on the bed (7), and the column (11) being located on one side of the slag leakage groove (703); a slag discharge auger (10) being installed in the slag leakage groove (703), and the top of the slag discharge auger (10) being open; two mutually parallel first slide rails (702) being fixedly mounted on the top of the bed (7), the two first slide rails (702) being respectively located on both sides of the slag leakage groove (703), a bucket body (802) being slidably mounted between the two first slide rails (702), the bucket body (802) being capable of synchronously moving with the column (11), and a transition bucket (805) being fixedly mounted on the top of the bucket body (802), the transition bucket A baffle (806) is fixedly installed on the top of (805) and at one end away from the column (11); two limiting guide rails (807) are fixedly installed on the top of the transition bucket (805) and at one end close to 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 on the end of the transition bucket (805) close to the column (11); a material blocking cloth (808) is installed on the automatic rebound shaft (809), and the end of the material blocking cloth (808) is fixedly connected to the pull rod (8013); a discharge port (801) is provided at the bottom of the bucket body (802), and the discharge port (801) extends to the inside of the slag discharge auger (10).

8. The machine tool according to claim 7, characterized in that: The automatic rebound shaft (809) comprises a housing (8016), a shaft (8018) and a torsion spring (8019); auxiliary shaft bodies (8020) are installed at both ends of the shaft (8018); limiting cylinders (8021) are provided at both ends of the housing (8016); the auxiliary shaft bodies (8020) extend into corresponding limiting cylinders (8021) and are rotatably matched with the limiting cylinders (8021); the torsion spring (8019) is sleeved outside the auxiliary shaft body (8020); The first end of the torsion spring (8019) is inserted into the first slot (8024), the first slot (8024) is opened on the auxiliary shaft (8020), the second end of the torsion spring (8019) is sleeved on the clamping shaft (8023), the clamping shaft (8023) is fixedly installed inside the shell (8016), the material blocking cloth (808) is wound around the shaft (8018), and the first end of the material blocking cloth (808) passes through the opening of the shell (8016) and is fixedly connected to the pull rod (8013).

9. The machine tool according to claim 8, characterized in that The shaft body (8018) is provided with a second slot (8025), a fixing piece is installed in the second slot (8025), and the fixing piece is fixedly connected to the second end of the material blocking cloth (808).

10. The machine tool according to claim 9, characterized in that Limiting plates (8022) are also installed at both ends of the shaft body (8018), and the diameter of the limiting plates (8022) is larger than the diameter of the shaft body (8018).

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