A dual-spindle vertical machining center

Abstract

The invention discloses a dual-spindle vertical machining center, which relates to the technical field of machining centers. The dual-spindle vertical machining center comprises a frame body, side vertical plates are fixed on both sides of the upper end of the frame body, and a gantry is arranged between the two side vertical plates; a transverse sliding mechanism is fixed on the inner side of the gantry; two vertical sliding mechanisms are installed above the transverse sliding mechanism, and a longitudinal cutting mechanism is installed on each vertical sliding mechanism; when in use, a steering knuckle to be processed is first installed on a clamp mechanism, and the transverse sliding mechanism and the vertical sliding mechanism drive the longitudinal cutting mechanism to move up and down and left and right, so as to realize cutting processing of the part of the steering knuckle that needs to be cut; after the cutting processing is completed, the clamp mechanism turns the steering knuckle 90 degrees and moves it to the rear side, and a plurality of transverse punching mechanisms perform drilling processing on the steering knuckle, so as to realize the combined processing processing of milling and drilling of the steering knuckle, and effectively improve the processing efficiency of the steering knuckle.

Description

Technical Field

[0001] The invention specifically relates to the technical field of machining centers, in particular to a dual-spindle vertical machining center. Background Art

[0002] The automobile steering knuckle is a key component in the automobile steering system and suspension system, and is usually composed of axle journals, flanges, fork-shaped structures, etc. The axle journal is used to install the wheel hub, which is the key part connecting the wheel and the body, allowing the wheel to rotate flexibly around it; the flange is generally used to connect components such as the brake disc to ensure the coordinated work of the brake system and the wheel; the fork-shaped structure is often used to connect steering-related components such as the steering rod to transmit the force from the steering gear to the wheel and change the direction of the wheel.

[0003] The existing vertical machining center can usually only perform milling on the surface of the steering knuckle, and then put it on the drilling equipment to drill the hole on the steering knuckle, which reduces the processing efficiency of the steering knuckle; after the steering knuckle is milled and then drilled, it needs to be re-clamped, which wastes a lot of time; and the equipment cannot realize the combined processing of the steering knuckle. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-spindle vertical machining center, which can directly perform drilling after milling the steering knuckle, thereby realizing combined processing of the steering knuckle, thereby realizing simultaneous processing of the steering knuckle milling and drilling, effectively eliminating the tedious workpiece disassembly back and forth, and greatly improving the processing efficiency of the steering knuckle. In order to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A dual-spindle vertical machining center comprises a frame body, side vertical plates are fixed on both sides of the upper end of the frame body, and a gantry is arranged between the two side vertical plates; a transverse sliding mechanism is fixed inside the gantry; two vertical sliding mechanisms are installed above the transverse sliding mechanism, and a longitudinal cutting mechanism is installed on each vertical sliding mechanism;

[0007] A clamp mechanism is provided below the longitudinal cutting mechanism; sliding seats are fixed on both sides of the bottom of the clamp mechanism, the sliding seats are slidably connected to the slide rails, and the slide rails are fixed on the frame body;

[0008] A plurality of transverse punching mechanisms are provided on the inner side of the clamp mechanism; the plurality of transverse punching mechanisms are fixedly connected to the gantry;

[0009] A chip removal groove is provided on the side of the frame body away from the gantry, and a chip removal mechanism is provided below the chip removal groove; the longitudinal cutting mechanism performs plane cutting processing on the steering knuckle; and the transverse punching mechanism performs punching processing on the steering knuckle.

[0010] As a further technical solution of the present invention, a hydraulic system is provided at the rear of the frame body, and a hydraulic lubrication and cooling system is fixed on the outside of the frame body.

[0011] As a further technical solution of the present invention, the chip removal mechanism includes a bracket arranged below the chip removal groove, and a transmission shell is provided above the bracket; a lifting belt is installed inside the transmission shell, and the lifting belt is driven by a driving assembly fixed on the outside of the transmission shell.

[0012] As a further technical solution of the present invention, the clamp mechanism includes a platform, a flip frame is fixed on the platform, two guide rails are symmetrically installed on the inner side of the flip frame, and a slide is slidably connected between the two guide rails; hydraulic cylinders are provided at both ends of the slide; the hydraulic cylinder is fixed to the flip frame through a cylinder fixing frame;

[0013] The slide frame is provided with two turning oil cylinders, and the cylinder rod ends of the turning oil cylinders are movably connected to the steering knuckle clamp through fisheye joints.

[0014] As a further technical solution of the present invention, the steering knuckle clamp is provided with a steering knuckle, and the steering knuckle has a through hole which is mounted on the convex shaft on the inner side of the upper end of the flip frame and is rotatably connected.

[0015] As a further technical solution of the present invention, the steering knuckle fixture comprises a fixture table, one side of which is equipped with a driving member; the inner side of the driving member is equipped with a driving toothed plate; the driving toothed plate is meshed and connected with a gear installed on the rotating shaft; the rotating shaft passes through the fixed cylinder and is fixed to the rotating disk; the fixed cylinder is fixed to the bottom of the fixed disk;

[0016] The rotating disk and the fixed disk are both provided with through grooves for facilitating the sliding of the clamping column.

[0017] As a further technical solution of the present invention, the through slots on the rotating disk are arranged in an arc shape; the through slots on the fixed disk are arranged in a double round head straight slot; and the number of the through slots on the rotating disk and the through slots on the fixed disk is the same and corresponds one to one.

[0018] As a further technical solution of the present invention, the lower end of the fixed cylinder is fixed on the guide sleeve; the gear is located inside the guide sleeve, and the driving gear plate is slidably connected in the guide sleeve; the guide sleeve is fixed to the bottom of the fixture table.

[0019] As a further technical solution of the present invention, each of the driving members comprises an arc-shaped tongue, and two driving rods are welded inside the arc-shaped tongue; the driving rods are slidably connected to one side of the fixture table; and one end of the two driving rods is welded with an end plate; the end plate is fixed to the driving member;

[0020] The driving rod is also sleeved with a spring; the spring is located between the arc-shaped tongue and the fixture platform.

[0021] As a further technical solution of the present invention, an arc-shaped groove is provided at the upper end of the arc-shaped tongue, and a roller is movably connected in the arc-shaped groove; the upper surface of the roller is higher than the upper surface of the arc-shaped tongue.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the present invention is used, the steering knuckle to be processed is first installed on the clamp mechanism, and the lateral sliding mechanism and the vertical sliding mechanism drive the longitudinal cutting mechanism to move up and down and left and right, so as to realize the cutting process of the part of the steering knuckle that needs to be cut; after the cutting process is completed, the clamp mechanism turns the steering knuckle 90 degrees and moves to the rear side, and multiple lateral punching mechanisms perform drilling process on the steering knuckle, thereby realizing the combined processing of milling and drilling of the steering knuckle, and effectively improving the processing efficiency of the steering knuckle;

[0024] In the present invention, when cutting and drilling, the metal debris generated falls onto the lifting belt through the chip removal groove on the frame body, and the driving component drives the lifting belt to move, so that the metal debris is discharged through the discharge end of the transmission shell; in addition, the length, height and direction of the head of the chip removal mechanism can be specially designed according to the on-site layout form to ensure the regularity of the on-site layout;

[0025] The present invention utilizes the longitudinal cutting mechanism to perform plane cutting on the steering knuckle, and the steering knuckle is in a horizontal state; after the cutting is completed, the cylinder rod of the hydraulic cylinder extends, and the slide slides inward along the guide rail, and then cooperates with the action of the turning cylinder to make the steering knuckle clamp turn over 90 degrees with the turning frame as the turning basis, so that the steering knuckle is 90 degrees perpendicular to the machine tool; then the oil cylinder is used to push the carrier to move backward, so that multiple transverse punching mechanisms punch holes on the steering knuckle; this scheme can realize cutting and drilling without disassembling the steering knuckle, and effectively improves the processing efficiency of the steering knuckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the planar structure of the present invention.

[0027] Figure 2 The present invention Figure 1 Top view of the .

[0028] Figure 3The present invention Figure 1 Schematic diagram of part of the structure.

[0029] Figure 4 The present invention Figure 3 Schematic diagram from another perspective.

[0030] Figure 5 The present invention Figure 1 Rear view of.

[0031] Figure 6 The present invention Figure 5 AA section view.

[0032] Figure 7 The present invention Figure 3 An enlarged schematic diagram of point B.

[0033] Figure 8 The present invention Figure 6 Enlarged schematic diagram of point C.

[0034] Fig. 9 It is a schematic diagram of the disassembled structure of the steering knuckle clamp in the present invention.

[0035] Fig.10 The present invention Fig. 9 Schematic diagram of the bottom structure.

[0036] Fig.11 It is a schematic diagram of the structure of the driving member in the present invention.

[0037] Fig.12 The present invention Fig. 9 An enlarged schematic diagram of point D.

[0038] Fig.13 The present invention Fig.10 Enlarged schematic diagram of point E.

[0039] In the figure: 1-frame body, 2-side vertical plate, 3-gantry, 4-lateral sliding mechanism, 5-longitudinal cutting mechanism, 6-lateral punching mechanism, 7-clamp mechanism, 8-sliding seat, 9-slide rail, 10-chip removal mechanism, 11-hydraulic system, 12-vertical sliding mechanism, 13-hydraulic lubrication and cooling system;

[0040] 71-carrier, 72-turning frame, 73-guide rail, 74-slide, 75-hydraulic cylinder, 76-turning cylinder, 77-steering knuckle clamp, 78-cylinder fixing frame, 79-tilt plate;

[0041] 771- fixture table, 772- rotating clamp, 773- rotating disk, 774- fixed disk, 775- clamping column, 776- fixed cylinder, 777- rotating shaft, 778- gear, 779- driving gear plate, 770- driving member, 7711- guide sleeve;

[0042] 7701-arc tongue, 7702-roller, 7703-driving rod, 7704-end plate, 7705-spring;

[0043] 101 - transmission housing, 102 - drive assembly, 103 - lifting belt, 104 - bracket. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figures 1 to 13 In an embodiment of the present invention, a dual-spindle vertical machining center includes a frame body 1, side vertical plates 2 are fixed on both sides of the upper end of the frame body 1, and a gantry 3 is provided between the two side vertical plates 2; a lateral sliding mechanism 4 is fixed on the inner side of the gantry 3; two vertical sliding mechanisms 12 are installed above the lateral sliding mechanism 4, and each vertical sliding mechanism 12 is installed with a longitudinal cutting mechanism 5;

[0046] A clamp mechanism 7 is provided below the longitudinal cutting mechanism 5; sliding seats 8 are fixed on both sides of the bottom of the clamp mechanism 7, and the sliding seats 8 are slidably connected to the slide rails 9, and the slide rails 9 are fixed on the frame body 1;

[0047] A plurality of transverse punching mechanisms 6 are provided on the inner side of the clamp mechanism 7; the plurality of transverse punching mechanisms 6 are fixedly connected to the gantry 3;

[0048] The frame body 1 is provided with a chip removal groove on one side away from the gantry 3, and a chip removal mechanism 10 is provided below the chip removal groove; the longitudinal cutting mechanism 5 performs plane cutting on the steering knuckle; and the transverse punching mechanism 6 performs punching on the steering knuckle.

[0049] By adopting the above technical solution, when in use, the steering knuckle to be processed is first installed on the clamp mechanism 7, and the lateral sliding mechanism 4 and the vertical sliding mechanism 12 drive the longitudinal cutting mechanism 5 to move up and down and left and right, so as to realize the cutting process of the part of the steering knuckle that needs to be cut;

[0050] After the cutting process is completed, the clamp mechanism 7 flips the steering knuckle 90 degrees and moves it to the rear side, and multiple transverse punching mechanisms 6 drill the steering knuckle, thereby realizing the combined processing of milling and drilling of the steering knuckle, effectively improving the processing efficiency of the steering knuckle.

[0051] Please see attached Figure 1-2 In this embodiment, a hydraulic system 11 is provided at the rear of the frame body 1 , and a hydraulic lubrication cooling system 13 is fixed on the outer side of the frame body 1 .

[0052] By adopting the above technical solution, the hydraulic system 11 provides driving kinetic energy for each hydraulic component; the hydraulic lubrication and cooling system 13 ensures the cooling effect and lubrication function of the entire equipment.

[0053] The hydraulic lubrication and cooling system 13 is equipped with a lubrication system, a hydraulic system, and the system valve group and the pump group are centrally stored in the equipment cabinet.

[0054] The lubrication system adopts an intermittent automatic lubrication pump and uses No. 000 thin butter (the lubricating grease is canned and replaced directly after use) to realize the automatic lubrication function of the machine tool, reducing the risk of the machine tool losing its original accuracy prematurely or causing serious machine tool component failure due to lack of lubrication and oil, resulting in downtime and production stoppage.

[0055] The hydraulic system 11 consists of a motor, a pump, a valve group, an oil tank, an oil pipe and hydraulic accessories. The working pressure of the hydraulic system is 7MPa, which is adjusted by the main circuit system valve. All seals are imported products, the pipeline layout is simple, leak-free, and easy to maintain and debug.

[0056] Please see attached Figure 3-5 In this embodiment, the chip removal mechanism 10 includes a bracket 104 arranged below the chip removal groove, and a transmission shell 101 is provided above the bracket 104; a lifting belt 103 is installed inside the transmission shell 101, and the lifting belt 103 is driven by a driving component 102 fixed to the outside of the transmission shell 101.

[0057] By adopting the above technical solution, when cutting and drilling, the metal debris generated falls onto the lifting belt 103 through the chip discharge groove on the frame body 1, and the driving component 102 drives the lifting belt 103 to move, so that the metal debris is discharged through the discharge end of the transmission shell 101.

[0058] In addition, the length, height and direction of the head of the chip removal mechanism 10 can be specially designed according to the on-site layout to ensure the regularity of the on-site layout.

[0059] Please see attached Figure 3-8In this embodiment, the fixture mechanism 7 includes a carrier 71, a flip frame 72 is fixed on the carrier 71, two guide rails 73 are symmetrically installed on the inner side of the flip frame 72, and a slide 74 is slidably connected between the two guide rails 73; hydraulic cylinders 75 are provided at both ends of the slide 74; the hydraulic cylinder 75 is fixed to the flip frame 72 through a cylinder fixing frame 78; two flip cylinders 76 are provided on the slide 74, and the cylinder rod ends of the flip cylinders 76 are movably connected to the steering knuckle clamp 77 through a fisheye joint. The steering knuckle clamp 77 clamps a steering knuckle, which has a through hole on the steering knuckle and is mounted on the convex shaft on the inner side of the upper end of the flip frame 72, and is rotatably connected.

[0060] By adopting the above technical solution, when the longitudinal cutting mechanism 5 is used to perform plane cutting on the steering knuckle, the steering knuckle is in a horizontal state; after the cutting is completed, the cylinder rod of the hydraulic cylinder 75 is extended, and the slide 74 slides inward along the guide rail 73, and then cooperates with the action of the flip cylinder 76 to make the steering knuckle clamp 77 flip 90 degrees with the flip frame 72 as the flipping basis, so that the steering knuckle is 90 degrees perpendicular to the machine tool; then the cylinder (not shown) is used to push the carrier 71 to move to the rear side, so that multiple horizontal punching mechanisms 6 punch holes on the steering knuckle.

[0061] The above solution can realize cutting and drilling processing without disassembling the steering knuckle, and effectively improves the processing efficiency of the steering knuckle.

[0062] For more details, please refer to the attached Figure 9-13 The steering knuckle fixture 77 includes a fixture table 771, and a driving member 770 is installed on one side of the fixture table 771; a driving gear plate 779 is installed on the inner side of the driving member 770; the driving gear plate 779 is meshed and connected with a gear 778 installed on the rotating shaft 777; the rotating shaft 777 passes through the fixed cylinder 776 and is fixed to the rotating disk 773; the fixed cylinder 776 is fixed to the bottom of the fixed disk 774;

[0063] The rotating disk 773 and the fixed disk 774 are both provided with through grooves for facilitating the sliding of the clamping column 775 .

[0064] By adopting the above technical solution, when clamping the steering knuckle, the steering knuckle is first placed in the clamp table 771. The contour of the clamp table 771 is set along the contour of the steering knuckle, which can accurately fix the steering knuckle and has high stability whether during cutting or drilling.

[0065] When the steering knuckle is placed on the fixture table 771, the steering knuckle matches the cavity contour inside the fixture table 771. While being placed, one end of the steering knuckle presses down the driving member 770, and the driving member 770 slides inwardly to cause the driving gear plate 779 to slide inwardly along the guide sleeve 7711, and drives the gear 778 to rotate. Driven by the gear 778, the rotating disk 773 rotates along the rotating shaft 777. At this time, the multiple clamping columns 775 slide outwardly, thereby clamping and fixing the flange hole in the middle of the steering knuckle; then the rotating clamping member 772 is rotated inwardly and clamped and fixed with the steering knuckle, so that the steering knuckle can be locked and fixed, ensuring that the steering knuckle will not fall off the fixture table 771; in this case, the steering knuckle always has a downward pressure on the driving member 770, thereby ensuring that the multiple clamping columns 775 clamp and fix the steering knuckle.

[0066] Please refer to the attached Figure 12-13 In this embodiment, the through slots on the rotating disk 773 are arranged in an arc shape; the through slots on the fixed disk 774 are arranged in a double round head straight slot; and the number of through slots on the rotating disk 773 and the number of through slots on the fixed disk 774 are the same and correspond one to one.

[0067] To be more specific, in this embodiment, the lower end of the fixed cylinder 776 is fixed on the guide sleeve 7711; the gear 778 is located inside the guide sleeve 7711, and the driving gear plate 779 is slidably connected in the guide sleeve 7711; the guide sleeve 7711 is fixed to the bottom of the fixture table 771.

[0068] By adopting the above technical solution, the arc-shaped through groove on the rotating disk 773 and the double-round-headed straight groove on the fixed disk 774 have a limiting and guiding effect on the clamping column 775. When the rotating disk 773 rotates, the clamping column 775 will slide along the arc-shaped through groove on the rotating disk 773 and the double-round-headed straight groove on the fixed disk 774, thereby clamping the steering knuckle.

[0069] Please refer to the attached Fig.11 In this embodiment, each of the driving members 770 includes an arc-shaped tongue 7701, and two driving rods 7703 are welded inside the arc-shaped tongue 7701; the driving rods 7703 are slidably connected to one side of the fixture table 771; and one end of the two driving rods 7703 is welded with an end plate 7704; the end plate 7704 is fixed to the driving member 770;

[0070] The driving rod 7703 is also sleeved with a spring 7705 ; the spring 7705 is located between the arc-shaped tongue 7701 and the fixture table 771 .

[0071] By adopting the above technical solution, when the steering knuckle is pressed down, the arc-shaped tongue 7701 will compress the spring 7705 and push the driving rod 7703 to move inward, so that the driving gear plate 779 has a force to slide inward.

[0072] After rotating the rotating clamp 772 outward to release the lock on the steering knuckle, the steering knuckle loses its pressing force on the arc-shaped tongue 7701. Under the push of the spring 7705, the arc-shaped tongue 7701 is reset and pulls the driving rod 7703 to move outward. The driving gear plate 779 has a reverse driving force on the gear 778, so that the clamping column 775 releases the clamping force on the steering knuckle, thereby facilitating the removal of the steering knuckle.

[0073] In this embodiment, an arc groove is formed at the upper end of the arc-shaped tongue 7701 , and a roller 7702 is movably connected in the arc groove; the upper surface of the roller 7702 is higher than the upper surface of the arc-shaped tongue 7701 .

[0074] By adopting the above technical solution, the setting of the roller 7702 facilitates a better sliding effect when the steering knuckle is pressed down, so that the arc tongue 7701 can slide smoothly inward.

[0075] The working principle is: when the steering knuckle is placed on the fixture table 771, the steering knuckle matches the cavity contour inside the fixture table 771, and while being placed, one end of the steering knuckle presses down the driving member 770, and the driving member 770 slides inwardly so that the driving gear plate 779 slides inwardly along the guide sleeve 7711, and drives the gear 778 to rotate. Driven by the gear 778, the rotating disk 773 rotates along the rotating shaft 777, and at this time, the multiple clamping columns 775 slide outwardly, thereby clamping and fixing the flange hole in the middle of the steering knuckle; then the rotating clamp 772 is rotated inwardly and clamped and fixed with the steering knuckle, so that the steering knuckle can be locked and fixed, ensuring that the steering knuckle will not fall off the fixture table 771; in this case, the steering knuckle always has a downward pressure on the driving member 770, thereby ensuring that the multiple clamping columns 775 clamp and fix the steering knuckle.

[0076] When the longitudinal cutting mechanism 5 is used to perform plane cutting on the steering knuckle, the steering knuckle is in a horizontal state; after the cutting is completed, the cylinder rod of the hydraulic cylinder 75 is extended, and the slide 74 slides inward along the guide rail 73, and then cooperates with the action of the flip cylinder 76 to make the steering knuckle clamp 77 flip 90 degrees with the flip frame 72 as the flipping basis, so that the steering knuckle is 90 degrees perpendicular to the machine tool; then the oil cylinder is used to push the carrier 71 to move backward, so that multiple horizontal punching mechanisms 6 punch holes on the steering knuckle; when cutting and drilling, the generated metal debris falls onto the lifting belt 103 through the chip discharge groove on the frame body 1, and the driving component 102 drives the lifting belt 103 to move, so that the metal debris is discharged through the discharge end of the transmission shell 101.

[0077] After the processing is completed, the rotating clamp 772 is rotated outward to release the lock on the steering knuckle. The steering knuckle loses its pressing force on the arc-shaped tongue 7701. Under the push of the spring 7705, the arc-shaped tongue 7701 is reset and pulls the driving rod 7703 to move outward. The driving gear plate 779 has a reverse driving force on the gear 778, so that the clamping column 775 releases the clamping of the steering knuckle, thereby facilitating the removal of the steering knuckle.

[0078] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0079] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-spindle vertical machining center, characterized in that: The machine comprises a frame body (1), side vertical plates (2) are fixed on both sides of the upper end of the frame body (1), and a gantry (3) is provided between the two side vertical plates (2); a transverse sliding mechanism (4) is fixed on the inner side of the gantry (3); two vertical sliding mechanisms (12) are mounted on the upper side of the transverse sliding mechanism (4), and a longitudinal cutting mechanism (5) is mounted on each vertical sliding mechanism (12); A clamping mechanism (7) is provided below the longitudinal cutting mechanism (5); sliding seats (8) are fixed on both sides of the bottom of the clamping mechanism (7); the sliding seats (8) are slidably connected to the slide rails (9), and the slide rails (9) are fixed on the frame body (1); A plurality of transverse punching mechanisms (6) are provided on the inner side of the clamp mechanism (7); the plurality of transverse punching mechanisms (6) are fixedly connected to the gantry (3); A chip removal groove is provided on the side of the frame body (1) away from the gantry (3), and a chip removal mechanism (10) is provided below the chip removal groove; the longitudinal cutting mechanism (5) performs a plane cutting process on the steering knuckle; and the transverse punching mechanism (6) performs a punching process on the steering knuckle; The clamp mechanism (7) comprises a carrier (71), a flip frame (72) is fixed above the carrier (71), two guide rails (73) are symmetrically mounted on the inner side of the flip frame (72), and a slide frame (74) is slidably connected between the two guide rails (73); hydraulic cylinders (75) are provided at both ends of the slide frame (74); the hydraulic cylinder (75) is fixed to the flip frame (72) via a cylinder fixing frame (78); The slide frame (74) is provided with two tilting oil cylinders (76), and the ends of the cylinder rods of the tilting oil cylinders (76) are movably connected to the steering knuckle clamp (77) via fisheye joints; The steering knuckle clamp (77) holds a steering knuckle, and the steering knuckle has a through hole that is mounted on the convex shaft on the inner side of the upper end of the tilting frame (72) and is rotatably connected; The steering knuckle fixture (77) comprises a fixture table (771), one side of which is cooperatively mounted with a driving member (770); the inner side of the driving member (770) is cooperatively mounted with a driving toothed plate (779); the driving toothed plate (779) is meshingly connected with a gear (778) mounted on a rotating shaft (777); the rotating shaft (777) passes through a fixed cylinder (776) and is fixed to a rotating disk (773); the fixed cylinder (776) is fixed to the bottom of the fixed disk (774); The rotating disk (773) and the fixed disk (774) are both provided with through grooves for facilitating the sliding of the clamping column (775); The through slots on the rotating disk (773) are arranged in an arc shape; the through slots on the fixed disk (774) are arranged in a double round-head straight slot; and the through slots on the rotating disk (773) and the through slots on the fixed disk (774) are the same in number and correspond one to one; The lower end of the fixing cylinder (776) is fixed on the guide sleeve (7711); the gear (778) is located inside the guide sleeve (7711), and the driving gear plate (779) is slidably connected inside the guide sleeve (7711); the guide sleeve (7711) is fixed on the bottom of the fixture table (771); Each of the driving members (770) comprises an arc-shaped tongue (7701), and two driving rods (7703) are welded on the inner side of the arc-shaped tongue (7701); the driving rods (7703) are slidably connected to one side of the fixture table (771); and an end plate (7704) is welded at one end of the two driving rods (7703); and the end plate (7704) is fixed to the driving member (770); The driving rod (7703) is also sleeved with a spring (7705); the spring (7705) is located between the arc-shaped tongue (7701) and the fixture table (771); An arc-shaped groove is formed at the upper end of the arc-shaped tongue (7701), and a roller (7702) is movably connected in the arc-shaped groove; the upper surface of the roller (7702) is higher than the upper surface of the arc-shaped tongue (7701); When the steering knuckle is placed on the fixture table (771), one end of the steering knuckle presses down the driving member (770) while being placed. When the steering knuckle is pressed down, the arc-shaped tongue (7701) compresses the spring (7705) and pushes the driving rod (7703) to move inward, so that the driving tooth plate (779) has a force to slide inward.

2. The dual-spindle vertical machining center according to claim 1, characterized in that: A hydraulic system (11) is provided at the rear of the frame body (1), and a hydraulic lubrication cooling system (13) is fixed on the outside of the frame body (1).

3. The dual-spindle vertical machining center according to claim 1, characterized in that: The chip removal mechanism (10) comprises a bracket (104) arranged below the chip removal groove, and a transmission shell (101) is arranged above the bracket (104); a lifting belt (103) is installed inside the transmission shell (101), and the lifting belt (103) is driven by a driving component (102) fixed to the outside of the transmission shell (101).

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