Dual-mode multi-cutter machining tool

Abstract

The invention discloses a dual-mode multi-cutter machining tool which comprises a machine table, and a moving device, an electric spindle and a fixing part are installed on the machine table. The motorized spindle has a brake function, so that the motorized spindle is used for fixing the output shaft when instantly stopping rotating and being static, the output end of the motorized spindle is used for installing the clamp, the fixing part directly faces the output end of the motorized spindle, and the clamp or the clamp and the fixing part are matched to form a machining position; a rotating tool turret is installed at the moving end of the moving device, a plurality of installation positions are arranged on the rotating tool turret and can be used for installing a fixed tool expansion piece and a movable tool expansion piece, a plurality of driving assemblies which are independent from one another and correspond to the installation positions are installed in the rotating tool turret, and the number of the driving assemblies is smaller than that of the installation positions. The driving assembly is used for providing power for the moving cutter expansion piece, the position of a workpiece is fixed through the braking function of the driving assembly, a basis is provided for subsequent moving cutter machining, and no extra structure needs to be added. In addition, a driving assembly is innovatively arranged on the rotary tool turret to provide power for the movable tool expansion piece, the two functions of a fixed tool and a movable tool are achieved, the functions of the machine tool are richer, the workpiece does not need to be transferred for secondary machining, and the machining efficiency can be effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic machine tools, in particular to a dual-mode multi-tool processing machine tool. Background Art

[0002] The power turret is an important accessory for high-precision CNC machine tools. It is generally loaded with various types of tools such as turning, milling, and drilling. Different tools can be quickly switched by rotation. For example, the public technical document "CN204975385U, two-gear dual-servo motor power turret" states that several tools can be pre-installed on the turret, and the required tools can be switched by rotating the turret according to the processing conditions.

[0003] However, the tools currently located on the turret are all fixed tools, that is, these tools do not move, and mainly rely on the rotation of the workpiece to change its position to achieve the milling operation on the workpiece. If the workpiece needs to be processed with holes, grooves, etc. later, it needs to be transferred to another machine tool and reprogrammed. There are many preparation steps before processing and the operations are cumbersome. Summary of the invention

[0004] The object of the present invention is to provide a dual-mode multi-tool machining machine tool to solve the problems raised in the above background technology.

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

[0006] A dual-mode multi-tool machining machine tool comprises a machine platform, on which a moving device, an electric spindle and a fixing part are mounted;

[0007] The electric spindle has a brake function, which is used to fix the output shaft when it stops rotating and stops instantly. The output end of the electric spindle is used to install a fixture, and the fixing part is directly opposite to the output end of the electric spindle. The fixture or the fixture and the fixing part cooperate to form a processing position;

[0008] A rotating turret is installed at the mobile end of the mobile device. A plurality of mounting positions are provided on the rotating turret, which can be used to install a fixed knife extension and a movable knife extension. A plurality of drive components that are independent of each other and correspond to the mounting positions are installed in the rotating turret. The number of the drive components is less than the number of mounting positions. The drive components are used to provide power to the movable knife extension.

[0009] According to a further technical solution, the drive assembly includes a drive motor, which is mounted on the inner side of the rotary turret through a mounting member, and whose output shaft extends into the mounting position and is connected to a gear;

[0010] The movable knife extension is installed on the outside of the rotating turret, and has an input end extending into the installation position, and the input end is provided with a gear ring, and the gear ring is meshed with the gear.

[0011] According to a further technical solution, the gear is a bevel gear, and the ring gear is adapted thereto.

[0012] According to a further technical solution, the fixing portion comprises a base, an adjusting seat is slidably connected to the base, a locking structure is provided between the base and the adjusting seat, and a top contact is provided on the adjusting seat.

[0013] According to a further technical solution, the electric spindle comprises a spindle motor and a brake cylinder;

[0014] Both ends of the output shaft of the spindle motor extend outwards, a brake disc is fixedly arranged at one end of the output shaft, a "V"-shaped brake groove is arranged on the outer periphery of the brake disc, and a chuck is arranged at the other end of the output shaft;

[0015] A pressure rod is provided at the output end of the brake cylinder, and the end of the pressure rod is adapted to the shape of the brake groove.

[0016] According to a further technical solution, the brake cylinder is installed on the spindle motor through an extension plate.

[0017] According to a further technical solution, the spindle motor includes a hollow rotor and a push rod inserted into the rotor, a clamp is installed at one end of the rotor, and a disassembly device is installed at the other end. The disassembly device extends into the rotor and is connected to the push rod, and one end of the push rod can abut against the clamp.

[0018] According to a further technical solution, the disassembly and assembly device comprises a locking assembly and a fixing assembly both sleeved on the end of the rotor;

[0019] The locking assembly comprises a hemispherical movable block sleeved on the rotor, the movable block is rotatably connected with the movable plate, one end of the movable plate is rotatably connected with the fixing member, and the other end is rotatably connected with the output end of the locking cylinder through a connecting member;

[0020] The fixing assembly includes a fixing sleeve fixed on the rotor, a plurality of clamping claws are rotatably connected to the fixing sleeve, a reset spring is provided between the fixing sleeve and the clamping claws, one end of the clamping claw can abut against the movable block, and the other end can extend into the rotor and abut against the end of the push rod.

[0021] Beneficial effects of the present invention:

[0022] The present invention uses its own braking function to fix the position of the workpiece, providing a basis for subsequent moving tool processing without the need for additional structure; in addition, the present invention innovatively arranges a drive assembly on the rotating turret to provide power for the moving tool extension, thereby realizing both fixed tool and moving tool functions, making the machine tool more functional, and there is no need to transfer the workpiece position for secondary processing, which can effectively improve the processing efficiency.

[0023] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 : A three-dimensional structural diagram of the present invention.

[0025] Figure 2 : Structural diagram of cutter head of the present invention.

[0026] Figure 3 : The internal structure diagram of the cutter head of the present invention.

[0027] Figure 4 : Disassembly diagram of the drive assembly and the movable knife extension of the present invention.

[0028] Figure 5 : Structural diagram of the fixing part of the present invention.

[0029] Figure 6 : The electric spindle structure of the present invention Figure 1 .

[0030] Figure 7 : The electric spindle structure of the present invention Figure 2 .

[0031] Figure 8 : The electric spindle structure of the present invention Figure 3 .

[0032] : 1-machine, 2-moving device, 3-electric spindle, 31-spindle motor, 311-rotor, 312-rod, 313-through hole, 313-disassembly and assembly device, 3131-movable block, 3132-movable plate, 3133-locking cylinder, 3134-bearing, 3141-fixing sleeve, 3142-clamping jaw, 32-brake cylinder, 33-brake disc, 34-brake groove, 35-chuck, 36-pressure rod, 37-extension plate, 4-fixing part, 41-base, 42-adjusting seat, 43-top contact piece, 5-rotating turret, 51-driving part, 52-knife disc, 53-mounting position, 54-driving assembly, 541-driving motor, 542-mounting part, 543-gear, 61-fixed knife extension, 62-moving knife extension, 621-input end, 622-gear ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] Please refer to Figure 1-8 ;

[0035] The processing machine tool of the present invention also has a turret that can switch tools to achieve different processing functions on the workpiece. Secondly, it also has two processing modes, namely, a conventional workpiece rotating tool fixed cutting mode, and a mode in which the workpiece is fixed and the tool rotates to achieve processing requirements such as hole turning and grooving. The specific structure includes a machine table 1, on which a moving device 2, an electric spindle 3 and a fixed part 4 are installed; the moving end of the moving device 2 is installed with a rotating turret 5, and a plurality of mounting positions 53 are provided on the rotating turret 5, which can be used to install a fixed tool extension 61 and a moving tool extension 62, and a plurality of drive components 54 that are independent of each other and correspond to the mounting positions 53 are installed in the rotating turret 5, and the number of drive components 54 is less than the number of mounting positions 53, and the drive components 54 are used to provide power to the moving tool extension 62; assuming that the number of mounting positions 53 is six, then the number of drive components 54 is less than six, which can be two, and these two drive components 54 can be controlled to start and stop separately;

[0036] In the present embodiment, there is no limitation on the installation position 53 of the fixed knife extension 61, that is, it can be installed at any installation position 53, and the movable knife extension 62 needs to be installed in the installation position 53 corresponding to the drive component 54. The drive component 54 located in the rotating turret 5 can be triggered by the controller according to demand. For example, the workpiece only needs to be subjected to simple milling processing. At this time, there is no need for the drive component 54 to operate, and only the fixed knife needs to be used. In this case, the fixed knife extension 61 can be installed on any installation position 53.

[0037] In addition, it is determined according to the shape of the workpiece whether the fixing part 4 needs to cooperate to form a processing position. One end of the electric spindle 3 is used to install a fixture. For example, when the workpiece is relatively short and has a large volume, the workpiece can be clamped and fixed only by the fixture. If the workpiece is relatively long, one end of it is clamped and fixed by the fixture, and the other end cooperates and contacts with the fixing part 4 to achieve double-head fixation of the workpiece so that it will not be deformed during processing.

[0038] Based on one of the usage modes of the above-mentioned components, in this usage mode, the workpiece only needs to be milled, so before work, the workpiece is first fixed on the processing position, and the fixed tool extension 61 to be used is installed on the rotating turret 5, and then the electric spindle 3 drives the workpiece to rotate, and at the same time the rotating turret 5 selects and switches the fixed tool to be used according to the program, and the moving device 2 drives the rotating turret 5 to move so that the fixed tool contacts the workpiece to realize the milling operation. In this embodiment, the electric spindle 3 has a braking function. When an emergency occurs, the electric spindle 3 is braked suddenly to stop the rotation of the workpiece instantly to avoid further damage to the workpiece or the risk of flying out. This belongs to a conventional processing method.

[0039] Based on another use mode of the above components, the electric spindle 3 in this use mode also has a braking function. The main action of the electric spindle 3 is achieved through the cooperation of the stator component and the rotor 311 component (output shaft). The principle is the same as that of the electric motor. In the case where the rotor 311 component is not fixed, the rotor 311 component can be rotated by applying an external force thereto. In this way, the position of the workpiece cannot be fixed. Therefore, in this embodiment, the brake function of the electric spindle 3 is used to fix the rotor 311 component to prevent the rotor 311 component from rotating during processing.

[0040] The brake function in this embodiment is composed of a separate brake module, that is, it can act independently. When the electric spindle 3 is not working, the brake module fixes the rotor 311 component so that it cannot rotate even when subjected to external force;

[0041] In addition, a moving knife frame module and a fixed knife extension module are respectively installed on the rotating turret 5, wherein the moving knife extension member 62 is connected to the driving assembly 54, and the action sequence of the moving knife and the fixed knife is determined according to the actual situation, and only one of the methods is described below;

[0042] During operation, when the workpiece needs to be milled, the workpiece is driven to rotate by the electric spindle 3. At this time, the rotating turret 5 selects the fixed tool to process the workpiece. Next, when the workpiece needs to be drilled or grooved, the electric spindle 3 will locate the current position of the workpiece so that the side of the workpiece that needs to be processed faces the side of the rotating turret 5. The positioning rotation angle can be specifically achieved through an encoder, which is similar to the positioning method of a servo motor. If some workpieces are cylinders, there is no need for positioning because each side is the same. After the electric spindle 3 stops rotating, the brake module is used to fix the current position of the output shaft so that it cannot rotate. Then, the rotating turret 5 rotates and selects the moving tool extension 62 to make it correspond to the workpiece. Then, the drive assembly 54 drives the moving tool extension 62 to rotate, so that the moving tool rotates to perform a drilling operation on the side of the workpiece.

[0043] In the prior art, a brake module is generally provided on the electric spindle 3, but it only has a braking function. In the present invention, the position of the workpiece is fixed by the built-in braking function, which provides a basis for subsequent moving tool processing without the need for additional structures.

[0044] In addition, the present invention innovatively sets a drive assembly 54 on the rotating turret 5 to provide power for the moving tool extension 62, realizing the two functions of fixed tool and moving tool, making the machine tool more functional, and there is no need to transfer the workpiece position for secondary processing, which can effectively improve the processing efficiency.

[0045] In the embodiment of the present invention, the structure of the rotating turret 5 can refer to the public technical document "CN108746687A, a high-stability power turret", which drives the power source of the moving knife extension 62 and the external motor. According to the description in paragraph 0037 of its specification, "a radial transmission shaft is radially arranged in the cutter disc 52 to drive the rotating knife seat to rotate, and the radial transmission shaft is connected to the axial transmission shaft by a bevel gear 543". This method will make the device very large, and when a number of rotating knife seats are provided, as long as the axial transmission shaft rotates, all the rotating knife seats will rotate synchronously;

[0046] Compared with the later, the present invention cancels the external power supply method, and the drive components 54 adopted are all individually set and controlled, which is more convenient to maintain. If one of the drive components 54 breaks down, there are others that can be used instead, and production will not be delayed. In addition, the built-in method is adopted to make the overall volume light. All the installation positions 53 can be used to install the fixed knife expansion module without any restrictions. It can be installed when the moving knife is needed, making the use of the machine tool more flexible.

[0047] One embodiment of the drive assembly 54 of the present invention specifically includes a drive motor 541. Preferably, the drive motor 541 adopts a small high-speed motor and is used together with a reducer. In this embodiment, the rotary turret 5 includes a rotating driving part and a cutter disc 52 part on which a tool is installed. The cutter disc 52 is circular. The drive part 51 is mainly connected to the outer side of the cutter disc 52, as long as it can drive it to rotate. A space for installing the drive motor 541 is provided in the turntable. The drive motor 541 is installed on the inner side of the rotary turret 5 through the mounting member 542. The output end extends into the mounting position 53 and is connected to a gear 543; preferably, the mounting position 53 has a mounting hole corresponding to the position of the drive motor 541, and the output end of the drive motor 541 extends into the mounting hole; the movable knife extension 62 is installed on the outside of the rotary turret 5, and has an input end 621 extending into the mounting position 53, and the input end 621 is provided with a gear ring 622, and the gear ring 622 is meshed with the gear 543; it should be noted that there are a number of gears meshing with each other located inside the movable knife extension 62, one end of the output end is connected to the internal gear, and the other end is provided with a gear ring 622;

[0048] The mounting position 53 located on the outside of the cutter disc 52 is basically the same. When the movable cutter extension 62 needs to be installed, the output end is inserted into the mounting hole so that the ring gear 622 engages with the gear 543. Then the outer shell is connected to the cutter disc 52 by screws or the like. When the driving component 54 is actuated, the gear 543 is driven, and the ring gear 622, the output end and the gear component located inside will rotate accordingly, thereby realizing the rotation of the external cutter.

[0049] Preferably, the gear 543 is a bevel gear 543, and the teeth on the gear 543 are inclined, and the ring gear 622 is adapted thereto, that is, the ring gear 622 has the same profile as the bevel gear 543, so that the bevel gear 543 is embedded therein. In addition, such a design can ensure that the gear 543 and the ring gear 622 can be meshed together each time they are installed, without adjusting the position of the ring gear 622.

[0050] To further explain, since the drive assembly 54 is disposed inside the cutter disc 52 and the drive assembly 54 must have a wire connection, the cutter disc 52 does not rotate infinitely, but reciprocates at a certain angle to select the cutter to be used.

[0051] One of the embodiments of the fixing portion 4 of the present invention specifically includes a base 41, on which an adjustment seat 42 is slidably connected, the base 41 has a long sliding distance, a locking structure (not shown) is provided between the base 41 and the adjustment seat 42, and a top contact piece 43 is provided on the adjustment seat 42. One end of the workpiece is connected to the electric spindle 3 through a clamp, and the other end contacts with the interference piece, which is usually a cone, so that interference can be achieved and the contact area can be reduced. Preferably, a bearing 3134 is provided between the interference piece and the adjustment seat to enable it to rotate. In addition, the distance between the interference piece and the electric spindle 3 is adjusted by the adjustment seat 42 to adapt to different workpieces.

[0052] One of the embodiments of the electric spindle 3 in the present invention specifically includes a spindle motor 31 and a brake cylinder 32. Both ends of the output shaft of the spindle motor 31 extend outward, a chuck 35 is provided on one end of the output shaft, and a brake disc 33 is fixedly provided on the other end. In this embodiment, the brake disc 33 and the output shaft can be fixed by spline, and when forced braking is required, it is more secure than using screws and other fixing methods; a "V"-shaped brake groove 34 is provided on the outer periphery of the brake disc 33, and a pressure rod 36 is provided at the output end of the brake cylinder 32, the pressure rod 36 is directly opposite to the brake groove 34, and the end of the pressure rod 36 is adapted to the shape of the brake groove 34. It is further explained that since the brake disc 33 is coaxially arranged with the output shaft, that is, the pressure rod 36 is in a vertical state, and always remains perpendicular to the axial direction of the output shaft;

[0053] Preferably, the brake cylinder 32 is installed on the spindle motor 31 through an extension plate 37, which can reduce the volume occupied. Secondly, the spindle motor 31 often needs to move. Installing the brake cylinder 32 on the spindle motor 31 can make it move with it, fix the relative positions of the two, and ensure the braking effect.

[0054] During normal operation, the brake cylinder 32 is in a retracted state, so that the pressure rod 36 is away from the brake groove 34. At the same time, the spindle motor 31 rotates the output shaft at a high speed, and the brake disc 33 rotates synchronously with the output shaft. When an emergency situation requires braking, the brake cylinder 32 quickly pushes the pressure rod 36 to extend and makes its end fit in the brake groove 34, thereby clamping the brake disc 33. It should be noted that after the emergency brake is triggered, the spindle motor 31 will generally stop running, and the output shaft only rotates by inertia at this time; of course, the spindle motor 31 stops running and brakes in an instant. During this process, the brake cylinder 32 will be in a continuous output state, so that the pressure rod 36 remains in a clamped state with the brake disc 33. In addition, the position where the pressure rod 36 contacts the brake groove 34 is subjected to force, and the pressure rod 36 applies a force perpendicular to the output shaft to the brake disc 33, while the force of the brake disc 33 at the contact point is perpendicular to the pressure rod 36, that is, the two forces are perpendicular to each other, so that the force on the brake disc 33 is the largest.

[0055] In another embodiment, the spindle motor 31 is in a stopped state. At this time, the brake cylinder 32 can be triggered separately to make the pressure rod 36 engage in the brake disc 33 and continue to apply pressure, so that the current position of the brake disc 33 can be fixed, that is, the output shaft will not rotate and will be fixed relative to the workpiece. Preferably, the angle between the tool and the force applied by the pressure rod 36 on the brake disc 33 is 90° or a multiple of 90°, which is beneficial to offset the deflection force generated when the tool rotates.

[0056] The spindle motor 31 in the present invention includes a hollow rotor 311, and a push rod 312 inserted into the rotor 311, and of course a stator used in conjunction with the rotor 311. A clamp is installed at one end of the rotor 311, and a disassembly and assembly device 313 is installed at the other end. The disassembly and assembly device 313 is used to loosen and lock the push rod 312, thereby controlling the relationship between the push rod 312 and the clamp to achieve disassembly and installation.

[0057] Furthermore, the disassembly and assembly device 313 is composed of two parts, including a locking component and a fixing component both sleeved on the end of the rotor 311;

[0058] The locking assembly includes a hemispherical movable block 3131 sleeved on the rotor 311, and the movable block 3131 is rotatably connected to the movable plate 3132. Preferably, a space for accommodating the movable block 3131 is provided in the middle of the movable plate 3132, and a bearing 3134 is provided in the space. The two symmetrical ends of the bearing 3134 are rotatably connected to the movable plate 3132, and the inner side of the bearing 3134 is fixedly connected to the movable block 3131, that is, the movable block 3131 can rotate relative to the bearing 3134, but cannot move axially relative to the bearing 3134; in addition, one end of the movable plate 3132 is rotatably connected to the fixed part, and this embodiment does not limit the movable part, as long as the relative position is fixed. Preferably, the fixed frame is an extension plate 37, and the other end of the movable plate 3132 is rotatably connected to the output end of the locking cylinder 3133 through a connecting part; when in action, the movable block 3131 can rotate with the rotor 311, and when axial movement is required, the movable plate 3132 is driven to move up and down through the telescopic action of the locking cylinder 3133.

[0059] In addition, the fixing assembly includes a fixing sleeve 3141 fixed on the rotor 311. The fixing sleeve 3141 can also rotate synchronously with the rotor 311. A plurality of clamping claws 3142 are rotatably connected to the fixing sleeve 3141. A reset spring is provided between the fixing sleeve 3141 and the clamping claws 3142. One end of the clamping claw 3142 can be movably abutted against the rotor 311, and the other end can be extended into the rotor 311 and abut against the end of the push rod 312.

[0060] When the movable block 3131 is in a state of being away from the clamping jaws 3142, under the action of the reset spring, the ends of all the clamping jaws 3142 close to the movable block 3131 are retracted and brought closer to each other, and the other ends of all the corresponding clamping jaws 3142 are in an expanded state away from each other. At this time, the push rod 312 is in a relaxed state, and the clamp can be replaced. After replacement, the locking cylinder 3133 pushes the movable plate 3132 to lift up, and synchronously drives the movable block 3131 to move axially. At this time, under the action of the spherical surface, the clamping jaws 3142 originally in a retracted state gradually open along the trajectory of the spherical surface, and the other ends of all the corresponding clamping jaws 3142 will gradually shrink and close together. After the movable block 3131 reaches a certain position, the end of the clamping jaw 3142 in contact with the spherical surface is opened to the maximum, and the corresponding other end is brought closer to the minimum range. At the same time, it must be brought closer to one end of the push rod 312, and a thrust is applied to make the push rod 312 conflict with the tool or clamp placed at the end of the rotor 311 to achieve locking.

[0061] It should be noted that the rotor 311 is provided with a plurality of through holes 313 corresponding to the clamping jaws 3142 , so that the ends of the clamping jaws 3142 can penetrate into the inner cavity.

[0062] 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.

[0063] 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 implementations that can be understood by those skilled in the art.

Claims

1. A dual-mode multi-tool machining machine tool, comprising a machine platform (1), on which a moving device (2), an electric spindle (3) and a fixing part (4) are mounted, characterized in that: The electric spindle (3) has a brake function, which is used to fix the output shaft when it stops rotating instantly or is stationary. The output end of the electric spindle (3) is used to install a fixture. The fixing part (4) is directly opposite to the output end of the electric spindle (3). The fixture or the fixture and the fixing part (4) cooperate to form a processing position. A rotating turret (5) is installed at the moving end of the moving device (2). The rotating turret (5) is provided with a plurality of mounting positions (53) for mounting a fixed knife extension (61) and a movable knife extension (62). The rotating turret (5) is provided with a plurality of drive assemblies (54) which are independent of each other and correspond to the mounting positions (53). The number of the drive assemblies (54) is less than the number of the mounting positions (53). The drive assemblies (54) are used to provide power to the movable knife extension (62).

2. A dual-mode multi-tool machining machine tool according to claim 1, characterized in that: The driving assembly (54) comprises a driving motor (541), wherein the driving motor (541) is mounted on the inner side of the rotating turret (5) via a mounting member (542), and an output shaft thereof extends into the mounting position (53) and is connected to a gear (543); The movable knife extension (62) is installed on the outside of the rotating turret (5), and has an input end (621) extending into the installation position (53), and the input end (621) is provided with a gear ring (622), and the gear ring (622) is meshed with the gear (543).

3. A dual-mode multi-tool machining machine tool according to claim 2, characterized in that: The gear (543) is a bevel gear (543), and the gear ring (622) is adapted thereto.

4. A dual-mode multi-tool machining machine tool according to claim 1, characterized in that: The fixing portion (4) comprises a base (41), an adjusting seat (42) is slidably connected to the base (41), a locking structure is provided between the base (41) and the adjusting seat (42), and a top contact piece (43) is provided on the adjusting seat (42).

5. The dual-mode multi-tool machining machine tool according to claim 1, characterized in that: The electric spindle (3) comprises a spindle motor (31) and a brake cylinder (32); Both ends of the output shaft of the spindle motor (31) extend outwards, a brake disc (33) is fixedly provided at one end of the output shaft, a "V"-shaped brake groove (34) is provided on the outer periphery of the brake disc (33), and a chuck (35) is provided at the other end of the output shaft; The output end of the brake cylinder (32) is provided with a pressure rod (36), and the end of the pressure rod (36) is adapted to the shape of the brake groove (34).

6. A dual-mode multi-tool machining machine tool according to claim 5, characterized in that: The brake cylinder (32) is mounted on the spindle motor (31) via an extension plate (37).

7. A dual-mode multi-tool machining machine tool according to claim 6, characterized in that: The spindle motor (31) comprises a hollow rotor (311) and a push rod (312) inserted into the rotor (311); a clamp is installed at one end of the rotor (311) and a disassembly device (313) is installed at the other end; the disassembly device (313) extends into the rotor (311) and is connected to the push rod (312); one end of the push rod (312) can abut against the clamp.

8. A dual-mode multi-tool machining machine tool according to claim 7, characterized in that: The disassembly and assembly device (313) comprises a locking component and a fixing component both sleeved on the end of the rotor (311); The locking assembly comprises a hemispherical movable block (3131) sleeved on the rotor (311), the movable block (3131) being rotatably connected to a movable plate (3132), one end of the movable plate (3132) being rotatably connected to a fixing member, and the other end of the movable plate (3132) being rotatably connected to an output end of a locking cylinder (3133) via a connecting member; The fixing assembly comprises a fixing sleeve (3141) fixed on the rotor (311), a plurality of clamping claws (3142) are rotatably connected to the fixing sleeve (3141), a reset spring is provided between the fixing sleeve (3141) and the clamping claws (3142), one end of the clamping claw (3142) can abut against the movable block (3131), and the other end can extend into the rotor (311) and abut against the end of the push rod (312).

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