Automatic exchange device for a horizontal turning machine

Abstract

The utility model relates to machine tool technical field discloses an automatic exchange device for horizontal plus machine tool, including base, outer sleeve, exchange arm, base is installed on horizontal plus machine tool, and the upper end of base is equipped with drive assembly, outer sleeve is installed on the movable end of drive assembly, exchange arm is installed on outer sleeve and is symmetrically distributed, and outer sleeve and exchange arm are driven to lift and rotate through drive assembly, drive assembly includes motor and coaxial centering pusher that is arranged in the motor inside. The utility model discloses drive assembly includes motor and coaxial centering pusher, and pusher rotates synchronously with rotor, and its movable part can lift and is fixed with outer sleeve, and outer sleeve and exchange arm are driven to lift and rotate through drive assembly, and this design simplifies transmission structure, and motor directly drives pusher, reduces intermediate transmission component, makes exchange action more direct and efficient, greatly shortens the exchange time, improves the work efficiency of horizontal plus machine tool.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to an automatic exchange device for a horizontal machining center. Background Technology

[0002] In a large machinery manufacturing plant, multiple horizontal machining centers are responsible for processing complex parts. During frequent use, the drawbacks of the traditional structure of the automatic exchange devices on these machines have become increasingly apparent, seriously affecting production efficiency and product quality.

[0003] Traditional horizontal machining center exchange devices use gears and racks to drive the exchange device to rotate and achieve table position changes. This mechanical structure is relatively complex. In actual production in large machinery manufacturing plants, numerous gears and racks work together, which not only increases the manufacturing cost of the equipment, but also makes installation, debugging and maintenance extremely difficult. Every time the exchange device is overhauled, technicians need to spend a lot of time and energy to disassemble, inspect and reinstall these parts, which seriously affects the uptime of the equipment, causes production delays, and the transmission accuracy and work efficiency also need to be improved. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an automatic exchange device for horizontal machining centers.

[0005] The present invention proposes an automatic exchange device for a horizontal machining center, comprising a base, an outer sleeve, and exchange arms. The base is installed on the horizontal machining center, and a drive assembly is installed on the upper end of the base. The outer sleeve is installed on the movable end of the drive assembly, and the exchange arms are installed on the outer sleeve and symmetrically distributed. The drive assembly drives the outer sleeve and the exchange arms to lift, lower, and rotate.

[0006] The drive assembly includes a motor and a pusher coaxially aligned inside the motor. The motor is preferably a torque motor. The motor has a stator and a rotor inside, and the pusher rotates synchronously with the rotor. The pusher has a liftable movable part, and the free end of the movable part extends upward to the outside of the motor and is fixed to the outer sleeve.

[0007] The pusher can be a cylinder, hydraulic cylinder, electric push rod, or other existing technologies.

[0008] To address the issues of complex structure and long operation time in traditional horizontal machining center exchange devices, the drive component design of this device has been optimized. The pusher inside the motor is coaxially aligned with the rotor and can rotate synchronously with the rotor. This structure allows the motor's power to be directly transmitted to the pusher. The movable part of the pusher can be raised and lowered and is fixed to the outer sleeve. When the motor is running, it can drive the pusher to rotate and also drive the outer sleeve and exchange arm to move synchronously through the raising and lowering of the movable part. This design simplifies the transmission structure, reduces intermediate transmission components such as gears and racks, and makes the exchange action more direct and efficient, greatly shortening the time required for the worktable to exchange positions, thereby improving the working efficiency of the horizontal machining center.

[0009] As a further optimized solution of this utility model, the pusher, rotor, and stator are arranged in sequence from the inside to the outside. The lower end of the rotor is equipped with a first positioning plate, and the first positioning plate and the pusher are rotatably connected to the upper end of the base through the same bearing.

[0010] The arrangement of the pusher, rotor, and stator from the inside out makes the entire drive assembly compact and rationally laid out. The first positioning plate is installed at the lower end of the rotor and is rotatably connected to the base via the same bearing as the pusher, ensuring the concentricity and stability of the rotor and pusher during rotation. During motor drive, this structure can effectively reduce vibration and eccentricity, resulting in higher motion accuracy of the exchange arm during rotation and lifting. This leads to more accurate exchange positioning of the worktable, improves the transmission accuracy of the horizontal machining center, helps to process high-precision parts, and enhances product quality.

[0011] As a further optimized solution of this utility model, the pushing part is set as a hydraulic cylinder, the movable part is set as a piston and is slidably fitted in the inner cavity of the pushing part, the upper end of the hydraulic cylinder has a sealing ring near the opening to prevent the internal oil from leaking outward, the upper end of the movable part extends to the outside of the motor and has a radially extending annular step, the upper end face of the annular step is fixed to the outer sleeve by bolts, and the lower end face of the annular step is equipped with a guide pin that is inserted into the upper end face of the pushing part.

[0012] The pusher is configured as a hydraulic cylinder, and the movable part is configured as a piston. The hydraulic drive provides a smooth and reliable operation. The piston slides within the cylinder cavity, enabling stable lifting and lowering movements. The annular step at the upper end of the movable part is fixed to the outer sleeve with bolts, ensuring a secure connection between the movable part and the outer sleeve. The guide pin installed on the lower end face of the annular step is inserted into the upper end face of the pusher, providing guidance and further enhancing the stability of the movable part during lifting and lowering. This prevents the piston from shifting or wobbling during movement, ensuring the accuracy and reliability of the exchange device during lifting and lowering.

[0013] As a further optimization of this utility model, the upper end face of the pusher is provided with a guide hole that matches the guide pin, and the lower end of the guide pin is slidably inserted into the guide hole.

[0014] The guide hole on the upper end face of the pusher is slidably connected to the guide pin, providing precise guidance for the lifting and lowering movement of the moving part. When the piston drives the moving part to rise or fall, the guide pin slides in the guide hole, restricting the movement trajectory of the moving part and making it move smoothly only in the predetermined direction. This guiding structure can effectively reduce the friction and wear of the moving part during the movement process, while improving the accuracy of the lifting and lowering movement, ensuring that the exchange arm remains stable during the lifting and lowering process, and further improving the working performance of the automatic exchange device.

[0015] As a further optimization of this utility model, the base has a second oil passage connected to the lower end of the inner cavity of the pusher, providing a stable supply of hydraulic oil to the cylinder. The hydraulic oil enters the inner cavity of the cylinder through the second oil passage, pushing the piston up or down. The stable supply of hydraulic oil ensures the normal operation of the pusher, enabling the moving part to smoothly drive the outer sleeve and the exchange arm to rise and fall, ensuring the stability and reliability of the entire exchange device during operation.

[0016] As a further optimization of this utility model, the device also includes a stator cover installed on the upper end of the stator, the center of the stator cover having a sleeve hole adapted to the free end of the movable part, and the inner wall of the sleeve hole having a sealing ring.

[0017] The stator cover is installed on the upper end of the stator, and the central sleeve hole is adapted to the free end of the movable part, which facilitates the passage of the movable part. At the same time, it plays a role in protecting the internal structure of the motor. The sealing ring on the inner wall of the sleeve hole can prevent dust, impurities and other impurities from entering the motor and avoid these impurities from damaging the stator, rotor and other components of the motor, thus ensuring the normal operation of the motor. In addition, the sealing ring can also play a certain sealing role, preventing the leakage of lubricating oil inside the motor and extending the service life of the motor.

[0018] As a further optimized solution of this utility model, the device also includes a second positioning disk installed on the upper end of the rotor. The center of the second positioning disk is provided with a movable hole that is adapted to the upper end of the pusher. The upper end of the pusher is assembled in the movable hole and is flush with the upper surface of the movable hole.

[0019] The movable hole at the center of the second positioning plate is adapted to the upper end of the pusher, providing additional positioning support for the pusher. During the rotation and lifting of the pusher driven by the motor, the second positioning plate can limit the radial displacement of the pusher, ensuring the stability of the pusher during movement. The design that the upper end of the pusher is flush with the upper surface of the movable hole makes the fit between the second positioning plate and the pusher tighter, further improving the motion accuracy of the entire drive assembly and ensuring that the exchange device can accurately complete the exchange action of the worktable during operation.

[0020] As a further optimized solution of this utility model, a clamp is also installed on the upper end face of the base. The clamp has multiple clamping parts, and the multiple clamping parts are evenly distributed circumferentially around the lower periphery of the pusher. The clamp is set below the bearing, and the lower end of the pusher passes through the bearing and extends downward to the space between the multiple clamping parts.

[0021] The clamps on the upper surface of the base and their multiple circumferentially distributed clamping parts play an important stabilizing role during the operation of the device. When the worktable is not being exchanged, the clamping parts of the clamp hold the pusher, limiting the swaying and displacement of the pusher and ensuring that the entire device is in a stable state. When the worktable needs to be exchanged, the clamp releases its grip on the pusher, allowing the pusher to rotate and move up and down freely to complete the exchange action. This design improves the stability and reliability of the automatic exchange device under different working conditions and ensures the normal operation of the equipment.

[0022] As a further optimization of this utility model, the clamp is a hydraulic clamp and is supplied with fluid through a first oil circuit set inside the base. The characteristics of the hydraulic system make the clamping action of the clamp more stable and can accurately control the magnitude of the clamping force according to actual needs. The first oil circuit ensures that the clamp has a stable power source during operation, ensuring that the pusher can be firmly clamped when not exchanging and can be quickly and accurately released when exchanging, further improving the working reliability and stability of the automatic exchange device.

[0023] As a further optimized solution of this utility model, a cooling sleeve fitted around the motor is also installed on the upper end face of the base. The inner wall of the cooling sleeve is in contact with the outer side of the stator, and the interior of the cooling sleeve has a first heat exchange pipe and a second heat exchange pipe that are interconnected. The opening ends of the first heat exchange pipe and the second heat exchange pipe are respectively connected to the inlet and outlet of the heat exchange medium circulation equipment.

[0024] The cooling jacket is installed around the motor. Its internal first and second heat exchange pipes are connected to the heat exchange medium circulation equipment, forming an effective cooling system. The heat exchange medium can be cold air or cold water, preferably cold water. During motor operation, a large amount of heat is generated. The inner wall of the cooling jacket is in contact with the outer surface of the stator, which can absorb the heat generated by the motor in time. The heat exchange medium circulates in the first and second heat exchange pipes, carrying away the heat and preventing the motor from being damaged due to overheating. This not only extends the service life of the motor, but also ensures the stable performance of the motor during long-term operation, thereby ensuring the stable operation of the automatic heat exchange device and improving the overall reliability of the equipment.

[0025] The automatic exchange device for horizontal machining centers proposed in this utility model has the following beneficial effects:

[0026] (I) The drive assembly of this utility model includes a motor and a coaxially aligned pusher. The pusher rotates synchronously with the rotor. Its movable part can be raised and lowered and fixed to the outer sleeve. The drive assembly drives the outer sleeve and the exchange arm to rise, lower and rotate. This design simplifies the transmission structure. The motor directly drives the pusher, reducing intermediate transmission components and making the exchange action more direct and efficient. It greatly shortens the exchange time and improves the working efficiency of the horizontal machining center. In actual production, it enables the horizontal machining center to switch processing tasks faster, reduces equipment waiting time, improves overall working efficiency, and thus improves the production efficiency of the factory.

[0027] (ii) The pusher, rotor and stator are arranged in sequence from the inside to the outside, and the rotor is rotatably connected to the base through the first positioning plate and bearing. This precise layout and connection method ensures the stability and accuracy of the motor drive. During the exchange process, the movement accuracy of the exchange arm is higher, and the exchange positioning of the worktable can be realized more accurately, thereby improving the transmission accuracy of the horizontal machining tool, providing a guarantee for the processing of high-precision parts and improving the processing quality.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] Figure 1 This is a top view of the structure of this utility model;

[0030] Figure 2 This is a front cross-sectional view of the present invention.

[0031] Figure descriptions: 1. Base; 2. Outer sleeve; 3. Exchange arm; 4. Pushing component; 5. Stator; 6. Rotor; 7. First positioning plate; 8. Bearing; 9. Movable part; 10. Guide pin; 11. Stator cover; 12. Second positioning plate; 13. Clamp; 14. First oil passage; 15. Second oil passage; 16. Cooling jacket; 17. First heat exchange pipe; 18. Second heat exchange pipe. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the field of machine tool technology, traditional exchange devices for horizontal machining centers suffer from problems such as complex structure and long operation time, which affect the working efficiency and transmission accuracy of the machine tool. The automatic exchange device of this utility model effectively solves these problems through innovative design, and its specific implementation is as follows:

[0035] like Figure 1 and Figure 2 As shown, the automatic exchange device mainly consists of a base 1, an outer sleeve 2, an exchange arm 3, and a drive assembly. The base 1 serves as the basic component and is stably installed on the horizontal machining center, providing support for the entire device. The drive assembly is installed on the upper end of the base 1 and is the core part that realizes the function of the device. The outer sleeve 2 is installed on the movable end of the drive assembly, and the exchange arm 3 is symmetrically distributed on the outer sleeve 2. Driven by the drive assembly, the outer sleeve 2 and the exchange arm 3 can achieve lifting and rotating movements, thereby completing the exchange action of the worktable.

[0036] Specifically, such as Figure 2As shown, the drive assembly includes a motor and a pusher 4 coaxially aligned inside the motor. The motor contains a stator 5 and a rotor 6. Preferably, the motor is a torque motor, which provides stable and efficient power. The pusher 4 rotates synchronously with the rotor 6. Its unique feature is that it has a liftable movable part 9. The free end of the movable part 9 extends upward to the outside of the motor and is fixed to the outer sleeve 2. This structural design allows the motor to drive the pusher 4 to rotate when it is running, and also to drive the outer sleeve 2 and the exchange arm 3 to move synchronously through the lifting and lowering of the movable part 9. This simplifies the transmission structure, reduces intermediate transmission components, makes the exchange action more direct and efficient, greatly shortens the time required for the worktable to exchange positions, and improves the working efficiency of the horizontal machining center.

[0037] Furthermore, such as Figure 2 As shown, the pusher 4, rotor 6, and stator 5 are arranged sequentially from the inside to the outside. The lower end of the rotor 6 is equipped with a first positioning plate 7. The first positioning plate 7 and the pusher 4 are rotatably connected to the upper end of the base 1 through the same bearing 8. This layout ensures the concentricity and stability of the rotor 6 and the pusher 4 during rotation, effectively reducing vibration and eccentricity. This makes the movement accuracy of the exchange arm 3 higher during rotation and lifting, thereby more accurately realizing the exchange positioning of the worktable and improving the transmission accuracy of the horizontal machining center.

[0038] Furthermore, the pusher 4 is usually configured as a hydraulic cylinder, and the movable part 9 is configured as a piston. The piston is slidably fitted in the inner cavity of the pusher 4. A sealing ring is installed at the upper end of the hydraulic cylinder near the opening to prevent the internal oil from leaking outward.

[0039] like Figure 2 As shown, the upper end of the movable part 9 extends to the outside of the motor and has a radially extending annular step. The upper end face of the annular step is fixed to the outer sleeve 2 by bolts to ensure a firm connection. A guide pin 10 is installed on the lower end face of the annular step. A guide hole that matches the guide pin 10 is opened on the upper end face of the pusher 4. The lower end of the guide pin 10 is slidably inserted into the guide hole. This design utilizes the smoothness of hydraulic drive to achieve stable lifting and lowering movement of the movable part 9. The cooperation between the guide pin 10 and the guide hole provides precise guidance for the lifting and lowering of the movable part 9, effectively reducing the offset and shaking of the piston during the movement, and improving the accuracy and stability of the lifting and lowering movement.

[0040] Furthermore, such as Figure 2 As shown, the base 1 has a second oil passage 15 that is connected to the lower end of the inner cavity of the pusher 4, providing a stable supply of hydraulic oil to the cylinder. The hydraulic oil enters the inner cavity of the cylinder through the second oil passage 15, pushing the piston up or down, thereby ensuring the normal operation of the pusher 4 and enabling the movable part 9 to smoothly drive the outer sleeve 2 and the exchange arm 3 to rise and fall, ensuring the stability and reliability of the entire exchange device during operation.

[0041] like Figure 2 As shown, in order to protect the internal structure of the motor, the device also includes a stator cover 11 installed on the upper end of the stator 5. The stator cover 11 has a sleeve hole at the center that matches the free end of the movable part 9. The inner wall of the sleeve hole has a sealing ring. The sleeve hole allows the movable part 9 to pass through easily. At the same time, the sealing ring can prevent dust and impurities from entering the motor, avoiding damage to the stator 5, rotor 6 and other components of the motor. It can also prevent the leakage of lubricating oil inside the motor and extend the service life of the motor.

[0042] Furthermore, a second positioning disk 12 is installed on the upper end of the rotor 6. The center of the second positioning disk 12 has a movable hole that matches the upper end of the pusher 4. The upper end of the pusher 4 is fitted into the movable hole and is flush with the upper surface of the movable hole. The second positioning disk 12 provides additional positioning support for the pusher 4. During the rotation and lifting of the pusher 4 driven by the motor, it can limit the radial displacement of the pusher 4, ensure its motion stability, and make the fit between the second positioning disk 12 and the pusher 4 tighter. This further improves the motion accuracy of the entire drive assembly and ensures that the exchange device accurately completes the exchange action of the worktable.

[0043] like Figure 2 As shown, a clamp 13 is installed on the upper end face of the base 1. The clamp 13 is a hydraulic clamp and is supplied with liquid through the first oil passage 14 provided inside the base 1. The clamp 13 has multiple clamping parts that are evenly distributed around the lower periphery of the pusher 4. The lower end of the pusher 4 passes through the bearing and extends downward to the space between the multiple clamping parts.

[0044] When no worktable exchange is required, the clamping part of the clamp 13 clamps the pusher 4, limiting its swaying and displacement, and ensuring the stability of the device. When the worktable needs to be exchanged, the clamp 13 releases the clamp on the pusher 4, allowing the pusher 4 to rotate and move up and down freely. The hydraulic clamp is supplied with fluid through the first oil circuit 14, ensuring the smoothness of the clamping action and the precise control of the clamping force, thereby improving the stability and reliability of the automatic exchange device under different working conditions.

[0045] like Figure 2 As shown, considering that the motor will generate a lot of heat when it is working, a cooling sleeve 16 is also installed on the upper surface of the base 1 and fitted around the motor. The inner wall of the cooling sleeve 16 is in contact with the outer side of the stator 5. The inside has a first heat exchange pipe 17 and a second heat exchange pipe 18 that are interconnected. The open ends of the first heat exchange pipe 17 and the second heat exchange pipe 18 are respectively connected to the inlet and outlet of the heat exchange medium circulation equipment. The heat exchange medium is preferably cold water.

[0046] During motor operation, the cooling jacket 16 can absorb the heat generated by the motor in a timely manner. Cold water enters the cooling jacket 16 from the first heat exchange pipe 17 and then flows out from the second heat exchange pipe 18. The water circulation equipment completes the heat exchange, carrying away the heat generated by the motor and preventing the motor from being damaged due to overheating. This ensures the stable performance of the motor during long-term operation, thereby ensuring the stable operation of the automatic heat exchange device and improving the overall reliability of the equipment.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic exchange device for a horizontal machining center, comprising a base (1), an outer sleeve (2), and exchange arms (3), wherein the base (1) is mounted on the horizontal machining center, and a drive assembly is mounted on the upper end of the base (1), the outer sleeve (2) is mounted on the movable end of the drive assembly, and the exchange arms (3) are mounted on the outer sleeve (2) and symmetrically distributed, wherein the drive assembly drives the outer sleeve (2) and the exchange arms (3) to lift, lower, and rotate, characterized in that: The drive assembly includes a motor and a pusher (4) coaxially aligned inside the motor. The motor has a stator (5) and a rotor (6) inside, and the pusher (4) rotates synchronously with the rotor (6). The pusher (4) has a liftable movable part (9), the free end of which extends upward to the outside of the motor and is fixed to the outer sleeve (2).

2. The automatic exchange device for a horizontal machining center according to claim 1, characterized in that, The pusher (4), rotor (6), and stator (5) are arranged in sequence from the inside to the outside. The lower end of the rotor (6) is equipped with a first positioning plate (7). The first positioning plate (7) and the pusher (4) are rotatably connected to the upper end of the base (1) through the same bearing (8).

3. An automatic exchange device for a horizontal machining center according to claim 1, characterized in that, The pusher (4) is configured as a hydraulic cylinder, and the movable part (9) is configured as a piston and is slidably fitted in the inner cavity of the pusher (4). The upper end of the movable part (9) extends to the outside of the motor and has a radially extending annular step. The upper end face of the annular step is fixed to the outer sleeve (2) by bolts, and the lower end face of the annular step is fitted with a guide pin (10) that is inserted into the upper end face of the pusher (4).

4. An automatic exchange device for a horizontal machining center according to claim 3, characterized in that, The upper end face of the pusher (4) is provided with a guide hole that matches the guide pin (10), and the lower end of the guide pin (10) is slidably inserted into the guide hole.

5. An automatic exchange device for a horizontal machining center according to claim 3, characterized in that, The base (1) has a second oil passage (15) that is connected to the lower end of the inner cavity of the pusher (4).

6. An automatic exchange device for a horizontal machining center according to claim 1, characterized in that, It also includes a stator cover (11) installed on the upper end of the stator (5), and the center of the stator cover (11) is provided with a sleeve hole that matches the free end of the movable part (9), and the inner wall of the sleeve hole has a sealing ring.

7. An automatic exchange device for a horizontal machining center according to claim 1, characterized in that, It also includes a second positioning disk (12) installed on the upper end of the rotor (6). The center of the second positioning disk (12) is provided with a movable hole that matches the upper end of the pusher (4). The upper end of the pusher (4) is assembled in the movable hole and is flush with the upper surface of the movable hole.

8. An automatic exchange device for a horizontal machining center according to claim 1, characterized in that, A clamp (13) is also installed on the upper surface of the base (1). The clamp (13) has multiple clamping parts, and the multiple clamping parts are evenly distributed around the lower periphery of the pusher (4).

9. An automatic exchange device for a horizontal machining center according to claim 8, characterized in that, The clamp (13) is a hydraulic clamp and is supplied with fluid through a first oil passage (14) provided inside the base (1).

10. An automatic exchange device for a horizontal machining center according to claim 1, characterized in that, The upper end of the base (1) is also equipped with a cooling sleeve (16) that is fitted around the motor. The inner wall of the cooling sleeve (16) is in contact with the outer side of the stator (5), and the interior of the cooling sleeve (16) has a first heat exchange pipe (17) and a second heat exchange pipe (18) that are interconnected. The opening ends of the first heat exchange pipe (17) and the second heat exchange pipe (18) are respectively connected to the inlet and outlet of the heat exchange medium circulation equipment.

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