An automated loading and unloading machine for a numerically controlled double-head lathe

Abstract

The present invention belongs to the technical field of loading and unloading of numerically controlled double-headed lathes, and specifically refers to an automated loading and unloading machine for numerically controlled double-headed lathes, including a support frame, a support base, a pressure-measuring type guiding mechanism, and an anti-inertia type clamping mechanism. The support base is arranged on the upper wall of the support frame. The pressure-measuring type guiding mechanism includes a sliding component, a driving component, a pressure-measuring component, and a voltage-stabilizing component. The sliding component is arranged on the upper wall of the support base, the driving component is arranged on the upper wall of the sliding component, the pressure-measuring component is arranged on the inner wall of the sliding component, and the voltage-stabilizing component is arranged on one side of the sliding component. The present invention provides an automated loading and unloading machine for numerically controlled double-headed lathes that can monitor the operating state of a slider with unilateral load, reduce the wear degree between the slider and the guide rail during reciprocating motion, and can rotate and replace the clamping structure to ensure that double operations can be completed in each movement.

Description

Technical Field

[0001] The invention belongs to the technical field of loading and unloading of numerically controlled double-headed lathes, and specifically refers to an automatic loading and unloading machine for numerically controlled double-headed lathes. Background Art

[0002] Since lathes can perform various machining operations on various types of workpieces such as shafts, discs, and rings, they are commonly used for machining the inner and outer rotating surfaces, end faces, and various internal and external threads of workpieces. However, for longer bar materials or pipe-like parts with higher coaxiality requirements at both ends, it is difficult to ensure their precision and quality when using ordinary lathes or numerically controlled lathes for machining. For this reason, the intermediate drive double-headed numerically controlled lathe came into being. The characteristic of the intermediate drive double-headed numerically controlled lathe is that a large through-hole spindle box is arranged in the middle, with a tool rest on each side, and the two ends of the workpiece can be turned simultaneously. This machining method can machine both ends of the bar material simultaneously without disassembling the part, ensuring high coaxiality at both ends of the workpiece to meet the actual machining requirements.

[0003] Currently, the existing automatic loading and unloading machines for numerically controlled double-headed lathes have the following problems:

[0004] The existing automatic loading and unloading machines for numerically controlled double-headed lathes do not have the ability to monitor the operating state of the slider with unilateral load, resulting in excessive offloading of the slider after the clamping structure clamps the workpiece, increasing the wear degree between the slider and the guide rail, and further affecting the conveying accuracy of the workpiece during the reciprocating motion. Moreover, the traditional automatic loading and unloading machines for numerically controlled double-headed lathes also do not have the ability to replace the clamping structure, resulting in only one type of operation being able to be completed in a single-way transportation. Therefore, they cannot meet the current usage requirements for automatic loading and unloading machines of numerically controlled double-headed lathes. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, this solution provides an automatic loading and unloading machine for numerically controlled double-headed lathes that can monitor the operating state of the slider with unilateral load, reduce the wear degree between the slider and the guide rail during reciprocating motion, and can rotate and replace the clamping structure to ensure that two types of operations can be completed in each movement.

[0006] The technical solution adopted in this solution is as follows: An automatic loading and unloading machine for a numerically controlled double-head lathe proposed in this solution includes a support frame, a support seat, a pressure-measuring guiding mechanism, and an inertia-proof clamping mechanism. The support seat is arranged on the upper wall of the support frame. The pressure-measuring guiding mechanism includes a sliding component, a driving component, a pressure-measuring component, and a voltage-stabilizing component. The sliding component is arranged on the upper wall of the support seat. The driving component is arranged on the upper wall of the sliding component. The pressure-measuring component is arranged inside the sliding component. The voltage-stabilizing component is arranged on one side of the sliding component. The inertia-proof clamping mechanism includes a lifting component and a rotating clamping component. The lifting component is arranged on the side of the driving component away from the voltage-stabilizing component. The rotating clamping component is arranged at one end of the lifting component close to the support frame.

[0007] As a further preference of the solution in this case, the sliding component includes a guide rail, a slider, and a sliding seat. The guide rail is arranged on the upper wall of the support seat. The sliders are symmetrically arranged at both ends of the guide rail. The guide rail is slidably connected to the sliders. The sliding seat is arranged on the upper wall of the sliders. The driving component includes a motor seat, a servo motor, a rack, and a driving gear. The motor seat penetrates and is arranged inside the sliding seat. The servo motor is arranged inside the motor seat. The rack is arranged on the upper wall of the support seat on one side of the guide rail. The driving gear is arranged at the power end of the servo motor. The driving gear meshes with the rack. The pressure-measuring component includes a pressure-measuring groove, a pressing plate, a pressure-measuring spring, a weighing sensor, and a strip-shaped groove. The pressure-measuring groove is arranged on the upper wall of the guide rail. The pressure-measuring groove is open on three sides. The strip-shaped grooves are symmetrically arranged on the bottom wall of the pressure-measuring groove. The strip-shaped grooves are open on three sides. The pressing plate is slidably arranged inside the pressure-measuring groove. The pressure-measuring spring is arranged between the pressing plate and the bottom wall of the strip-shaped groove. Multiple groups of the weighing sensors penetrate and are arranged between the guide rail and the inner wall of the support seat. One side of the pressure-measuring spring away from the pressing plate is connected to the weighing end of the weighing sensor. The voltage-stabilizing component includes a voltage-stabilizing groove, a U-shaped plate, a strip-shaped magnet, a voltage-stabilizing electromagnet, a gravity block, and a limiting block. The voltage-stabilizing groove is arranged on the inner wall of the support seat at the end away from the guide rail. The voltage-stabilizing groove is open on two sides. The U-shaped plate penetrates the cavity of the voltage-stabilizing groove and is arranged on the side wall of the slider. One end of the U-shaped plate away from the slider is arranged below the support seat. The strip-shaped magnet is arranged on the bottom wall of the support seat. The voltage-stabilizing electromagnet is arranged on the upper wall of one end of the U-shaped plate close to the strip-shaped magnet. The strip-shaped magnet and the voltage-stabilizing electromagnet are arranged opposite to each other. The gravity block is arranged on the bottom wall of one end of the U-shaped plate close to the voltage-stabilizing electromagnet. The limiting block is arranged on the upper wall of the U-shaped plate inside the voltage-stabilizing groove. The limiting block is in contact with the top wall of the voltage-stabilizing groove.

[0008] During use, since the slider clamps and transports the workpiece unilaterally, the extrusion force of the slider on the upper wall of the guide rail is different, resulting in uneven force on the contact surface between the guide rail and the slider, excessive local pressure, and accelerated wear. The normal state of the pressure measuring spring is set to be extended. The pressure measuring spring drives the pressure plate to fit against the bottom wall of the slider. When the slider is in a balanced state, the extrusion force on the pressure plate is the same. When the slider shows an off-load phenomenon, the downward pressure of the slider on the pressure plate at one end of the guide rail increases. The pressure plate squeezes the weighing end of the weighing sensor through the pressure measuring spring, and the gravity sensed by the weighing sensors at both ends of the bottom wall of the support seat changes. At this time, a suitable gravity block is installed on the bottom wall of the U-shaped plate to ensure that the extrusion forces of the slider on the pressure plates at both ends of the guide rail are the same.

[0009] Preferably, the lifting assembly includes a strip-shaped plate, an electric push rod, a lifting groove, a lifting plate, a connecting frame, and a strip-shaped magnet. The strip-shaped plate is arranged on the side of the motor seat away from the servo motor. The electric push rod is arranged through the inner wall of the top of the strip-shaped plate. The lifting groove is arranged at one end of the strip-shaped plate away from the electric push rod. The lifting groove is open on three sides. The lifting plate is slidably arranged on the inner wall of the lifting groove. The connecting frame is arranged between the lifting plate and the power end of the electric push rod. The strip-shaped magnet is arranged on the side of the lifting plate close to the support seat. The rotating clamping assembly includes a rotating clamping motor, a steering block, a clamping angle sleeve, a groove, an adsorption electromagnet, an annular magnet plate, and a clamping spring. The rotating clamping motor is arranged at one end of the lifting plate away from the strip-shaped plate and on the side of the lifting plate close to the support frame. The steering block is arranged on the side of the lifting plate away from the rotating clamping motor. The power end of the rotating clamping motor passes through the lifting plate and is connected to the steering block. Two groups of the clamping angle sleeves are arranged at a right angle on the side wall of the steering block. The groove is arranged on the inner wall of the clamping angle sleeve close to the steering block. The groove is open at one end. The adsorption electromagnet is arranged on the inner wall of the groove. The annular magnet plate is slidably arranged on the inner wall of the clamping angle sleeve away from the steering block. The clamping spring is arranged between the inner wall of the groove outside the adsorption electromagnet and the annular magnet plate. The normal state of the clamping spring is set to be extended.

[0010] During use, the pallet for holding workpieces is placed on the ground at both ends of the support base. The support frame drives the support base to be fixedly placed on one side of the numerically controlled double-headed lathe. The power end of the electric push rod extends and drives the lifting plate through the connecting frame. The lifting plate slides down along the lifting groove and drives the turning block closer to the pallet. The turning clamp motor drives the turning block to rotate through the power end. The turning block drives the clamping angle sleeve closer to the workpiece. The clamping angle sleeve descends and sleeves onto the outer side of the cylindrical workpiece. The annular magnetic plate fits against the upper wall of the cylindrical workpiece. The annular magnetic plate is energized to generate magnetism to adsorb the cylindrical workpiece. The annular magnetic plate and the adsorption electromagnet are arranged with opposite polarities. The adsorption electromagnet is fixed inside the groove and adsorbs the annular magnetic plate by magnetic force. The annular magnetic plate slides along the clamping angle sleeve by the deformation of the clamping spring and approaches the adsorption electromagnet. The workpiece is clamped inside the clamping angle sleeve. The power end of the electric push rod shortens and drives the lifting plate through the connecting frame. The lifting plate drives the turning block and the clamping angle sleeve to rise. The turning clamp motor drives the turning block to rotate through the power end. The turning block drives the clamping angle sleeve of the unclamped workpiece closer to the pallet. The power end of the electric push rod extends and drives the clamping angle sleeve to descend and sleeve onto the outer side of the cylindrical workpiece. The annular magnetic plate is adsorbed by magnetic force. As the power end of the electric push rod extends, the annular magnetic plate slides along the inner wall of the clamping angle sleeve by the deformation of the clamping spring and approaches the adsorption electromagnet, completing the clamping operation of two groups of workpieces.

[0011] Specifically, a controller is provided on the side wall of the support frame.

[0012] Among them, the controller is electrically connected to the servo motor, the weighing sensor, the voltage stabilizing electromagnet, the turning clamp motor, and the annular magnetic plate respectively.

[0013] The beneficial effects obtained by this solution with the above structure are as follows:

[0014] Compared with the prior art, this solution combines a voltage stabilizing transmission structure and a pressure measuring transmission structure, and uses a single rail setting. (1) There is no need for multi-rail alignment debugging; (2) The contact surface of the single rail is reduced, the friction loss is reduced, and the acceleration and speed upper limits of the moving parts are higher; (3) The single-rail design is convenient for foreign object cleaning and is suitable for dusty environments;

[0015] Moreover, through the provided pressure measuring type guiding mechanism and anti-inertia clamping mechanism, under the mutual cooperation of the sliding component, the driving component, the pressure measuring component, the voltage stabilizing component, the lifting component, and the turning clamp component, by maintaining the balance of the slider, it is possible to ensure the smoothness of the slider when reciprocating along the rail, reduce the probability of wear between the rail and the slider, and thus ensure the accurate loading and unloading of the workpiece by the slider, avoiding the long-term eccentric load of the slider causing the rail to bend and deform, resulting in a decrease in motion accuracy and affecting the clamping operation of the workpiece;

[0016] When the clamping angle sleeve clamps and transports the workpiece, it can adaptively adjust the balance state of the slider according to the weight of the workpiece, so as to accurately complete the loading and unloading operation of the workpiece under the condition of ensuring that there is no wear between the guide rail and the slider due to eccentric load. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of this solution;

[0018] Figure 2 It is a front perspective view of this solution;

[0019] Figure 3 It is a bottom perspective view of this solution;

[0020] Figure 4 It is a schematic diagram of the structure of the sliding component of this solution;

[0021] Figure 5 It is a schematic diagram of the structure of the anti-inertia clamping mechanism of this solution;

[0022] Figure 6 It is a schematic diagram of the structure of the voltage stabilizing component of this solution;

[0023] Figure 7 It is a schematic diagram of the structure of the pressure measuring component of this solution;

[0024] Figure 8 It is the front view of this solution;

[0025] Figure 9 It is the side view of this solution;

[0026] Figure 10 It is the top view of this solution;

[0027] Figure 11 is Figure 10 The sectional view of part A-A of;

[0028] Figure 12 is Figure 5 The enlarged structural view of part I of;

[0029] Figure 13 is Figure 11 The enlarged structural view of part II of;

[0030] Figure 14 is Figure 1 The enlarged structural view of part III of;

[0031] Figure 15 is Figure 2 The enlarged structural view of part IV of;

[0032] Figure 16 is Figure 7 The enlarged structural view of part V of.

[0033] Among them, 1. Support frame, 2. Support base, 3. Pressure-measuring guiding mechanism, 4. Sliding assembly, 5. Guide rail, 6. Slide block, 7. Sliding seat, 8. Driving assembly, 9. Motor base, 10. Servo motor, 11. Rack and pinion, 12. Driving gear, 13. Pressure-measuring assembly, 14. Pressure-measuring groove, 15. Pressing plate, 16. Pressure-measuring spring, 17. Weighing sensor, 18. Anti-inertia clamping mechanism, 19. Lifting assembly, 20. Strip-shaped plate, 21. Electric push rod, 22. Lifting groove, 23. Lifting plate, 24. Connecting frame, 25. Strip-shaped magnet, 26. Rotating clamping assembly, 27. Rotating clamping motor, 28. Steering block, 29. Clamping angle sleeve, 30. Groove, 31. Adsorption electromagnet, 32. Ring-shaped magnetic plate, 33. Clamping spring, 34. Controller, 35. Strip-shaped groove, 36. Voltage-stabilizing assembly, 37. Voltage-stabilizing groove, 38. U-shaped plate, 39. Strip-shaped magnet, 40. Voltage-stabilizing electromagnet, 41. Gravity block, 42. Limit block.

[0034] The attached drawings are used to provide a further understanding of the solution, and constitute a part of the specification. Together with the embodiments of the solution, they are used to explain the solution, but do not constitute a limitation to the solution. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the solution will be clearly and completely described in conjunction with the attached drawings in the embodiments of the solution. Obviously, the described embodiments are only a part of the embodiments of the solution, rather than all the embodiments; based on the embodiments in the solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the solution.

[0036] In the description of the solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the attached drawings. It is only for the convenience of describing the solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the solution.

[0037] As Figures 1 - 16As shown in the figure, an automatic loading and unloading machine for a numerically controlled double-headed lathe proposed by this solution includes a support frame 1, a support base 2, a pressure-measuring type guiding mechanism 3, and an inertia-proof clamping mechanism 18. The support base 2 is arranged on the upper wall of the support frame 1. The pressure-measuring type guiding mechanism 3 includes a sliding component 4, a driving component 8, a pressure-measuring component 13, and a voltage-stabilizing component 36. The sliding component 4 is arranged on the upper wall of the support base 2. The driving component 8 is arranged on the upper wall of the sliding component 4. The pressure-measuring component 13 is arranged inside the sliding component 4. The voltage-stabilizing component 36 is arranged on one side of the sliding component 4. The inertia-proof clamping mechanism 18 includes a lifting component 19 and a rotating clamping component 26. The lifting component 19 is arranged on the side of the driving component 8 away from the voltage-stabilizing component 36. The rotating clamping component 26 is arranged at one end of the lifting component 19 close to the support frame 1.

[0038] The sliding component 4 includes a guide rail 5, a slider 6, and a sliding seat 7. The guide rail 5 is arranged on the upper wall of the support base 2. The sliders 6 are symmetrically arranged at both ends of the guide rail 5. The guide rail 5 is slidably connected to the sliders 6. The sliding seat 7 is arranged on the upper wall of the sliders 6. The driving component 8 includes a motor base 9, a servo motor 10, a rack 11, and a driving gear 12. The motor base 9 penetrates and is arranged inside the sliding seat 7. The servo motor 10 is arranged inside the motor base 9. The rack 11 is arranged on the upper wall of the support base 2 on one side of the guide rail 5. The driving gear 12 is arranged at the power end of the servo motor 10. The driving gear 12 meshes with the rack 11. The pressure-measuring component 13 includes a pressure-measuring groove 14, a pressing plate 15, a pressure-measuring spring 16, a weighing sensor 17, and a strip-shaped groove 35. The pressure-measuring groove 14 is arranged on the upper wall of the guide rail 5. The pressure-measuring groove 14 is open on three sides. The strip-shaped grooves 35 are symmetrically arranged on the bottom wall of the pressure-measuring groove 14. The strip-shaped grooves 35 are open on three sides. The pressing plate 15 is slidably arranged inside the pressure-measuring groove 14. The pressure-measuring spring 16 is arranged between the pressing plate 15 and the bottom wall of the strip-shaped groove 35. Multiple groups of the weighing sensors 17 penetrate and are arranged between the guide rail 5 and the inner wall of the support base 2. The side of the pressure-measuring spring 16 away from the pressing plate 15 is connected to the weighing end of the weighing sensor 17. The voltage-stabilizing component 36 includes a voltage-stabilizing groove 37, a U-shaped plate 38, a strip-shaped magnet 39, a voltage-stabilizing electromagnet 40, a gravity block 41, and a limiting block 42. The voltage-stabilizing groove 37 is arranged on the inner wall of the support base 2 away from the guide rail 5. The voltage-stabilizing groove 37 is open on two sides. The U-shaped plate 38 penetrates the cavity of the voltage-stabilizing groove 37 and is arranged on the side wall of the slider 6. The end of the U-shaped plate 38 away from the slider 6 is arranged below the support base 2. The strip-shaped magnet 39 is arranged on the bottom wall of the support base 2. The voltage-stabilizing electromagnet 40 is arranged on the upper wall of the end of the U-shaped plate 38 close to the strip-shaped magnet 39. The strip-shaped magnet 39 and the voltage-stabilizing electromagnet 40 are arranged opposite to each other. The gravity block 41 is arranged on the bottom wall of the end of the U-shaped plate 38 close to the voltage-stabilizing electromagnet 40. The limiting block 42 is arranged on the upper wall of the U-shaped plate 38 inside the voltage-stabilizing groove 37. The limiting block 42 is in contact with the top wall of the voltage-stabilizing groove 37.

[0039] The lifting assembly 19 includes a strip plate 20, an electric push rod 21, a lifting groove 22, a lifting plate 23, a connecting frame 24 and a strip magnet 25. The strip plate 20 is arranged on the side of the motor base 9 away from the servo motor 10. The electric push rod 21 is arranged through the inner wall of the top of the strip plate 20. The lifting groove 22 is arranged at one end of the strip plate 20 away from the electric push rod 21. The lifting groove 22 is open on three sides. The lifting plate 23 is slidably arranged on the inner wall of the lifting groove 22. The connecting frame 24 is arranged between the lifting plate 23 and the power end of the electric push rod 21. The strip magnet 25 is arranged on the side of the lifting plate 23 close to the support base 2. The rotating clamping assembly 26 includes a rotating clamping motor 27, a steering block 28, a clamping angle sleeve 29, a groove 30, an adsorption electromagnet 31, an annular magnetic plate 32 and a clamping spring 33. The rotating clamping motor 27 is arranged at one end of the lifting plate 23 away from the strip plate 20 and on the side of the lifting plate 23 close to the support frame 1. The steering block 28 is arranged on the side of the lifting plate 23 away from the rotating clamping motor 27. The power end of the rotating clamping motor 27 passes through the lifting plate 23 and is connected to the steering block 28. Two groups of the clamping angle sleeves 29 are arranged at a right angle on the side wall of the steering block 28. The groove 30 is arranged on the inner wall of the clamping angle sleeve 29 close to the steering block 28. The groove 30 is open at one end. The adsorption electromagnet 31 is arranged on the inner wall of the groove 30. The annular magnetic plate 32 is slidably arranged on the inner wall of the clamping angle sleeve 29 away from the steering block 28. The clamping spring 33 is arranged between the inner wall of the groove 30 outside the adsorption electromagnet 31 and the annular magnetic plate 32. The clamping spring 33 is normally in an extended state.

[0040] A controller 34 is arranged on the side wall of the support frame 1.

[0041] The controller 34 is electrically connected to the servo motor 10, the weighing sensor 17, the voltage stabilizing electromagnet 40, the rotating clamping motor 27 and the annular magnetic plate 32 respectively.

[0042] During specific use, the support frame 1 drives the support base 2 to be fixedly placed on the ground on one side of the numerically controlled double - head lathe. The trays for loading workpieces are placed on the ground at both ends of the support base 2. In the initial state, the slider 6 is located at both ends of the guide rail 5, the clamping angle sleeve 29 is located above the tray, the compression spring 16 is normally in an extended state, and the compression spring 16 drives the pressing plate 15 to fit against the bottom wall of the slider 6.

[0043] Since the slider 6 conveys the workpiece unilaterally, and the workpiece clamping structure is arranged on one side of the slider 6, a phenomenon of uneven load occurs when the slider 6 slides along the guide rail 5. When the workpiece is not being transported, the controller 34 controls the weighing sensor 17 to start. The weighing sensor 17 senses the extrusion force from the pressure measuring spring 16 through the weighing end. At this time, the extrusion force exerted by the side of the slider 6 with the clamping structure on the pressing plate 15 at one end of the guide rail 5 is relatively large. After being extruded, the pressing plate 15 uses the deformation of the pressure measuring spring 16 to squeeze the weighing end of the weighing sensor 17. The extrusion forces detected at both ends of the bottom wall of the support base 2 are different. The gravity block 41 that meets the balance condition of the slider 6 is arranged on the bottom wall of the U-shaped plate 38. Under the gravity of the gravity block 41, the U-shaped plate 38 presses down on the side of the slider 6 away from the strip plate 20 to ensure the balance of the slider 6 when moving on the guide rail 5. When the slider 6 is in a balanced state, the extrusion forces of the pressure measuring spring 16 on the weighing end of the weighing sensor 17 are the same;

[0044] When the workpiece placed on the tray needs to be processed, the controller 34 controls the electric push rod 21 to start. The power end of the electric push rod 21 extends and drives the lifting plate 23 through the connecting frame 24. The lifting plate 23 slides down along the lifting groove 22 and drives the turning block 28 close to the tray. The controller 34 controls the turning and clamping motor 27 to start. The turning and clamping motor 27 drives the turning block 28 to rotate through the power end. The turning block 28 drives the clamping angle sleeve 29 close to the workpiece. The clamping angle sleeve 29 descends and sleeves onto the outside of the cylindrical workpiece. The annular magnetic plate 32 fits against the upper wall of the cylindrical workpiece. The controller 34 controls the annular magnetic plate 32 to start. The annular magnetic plate 32 is energized to generate magnetism to adsorb the cylindrical workpiece. The adsorption electromagnet 31 is arranged with opposite poles to the annular magnetic plate 32. The adsorption electromagnet 31 is fixed inside the groove 30 and adsorbs the annular magnetic plate 32 through magnetism. The annular magnetic plate 32 slides along the clamping angle sleeve 29 and approaches the adsorption electromagnet 31 by using the deformation of the clamping spring 33. The workpiece is clamped inside the clamping angle sleeve 29. The controller 34 controls the power end of the electric push rod 21 to shorten and drives the lifting plate 23 through the connecting frame 24. The lifting plate 23 drives the turning block 28 and the clamping angle sleeve 29 to rise, completing the clamping operation for a group of workpieces;

[0045] The controller 34 controls the turning and clamping motor 27 to start. The turning and clamping motor 27 drives the turning block 28 to rotate through the power end. The turning block 28 drives the clamping angle sleeve 29 of the unclamped workpiece to rotate close to the tray. The power end of the electric push rod 21 extends and drives the clamping angle sleeve 29 to descend and sleeve onto the outside of the cylindrical workpiece. The annular magnetic plate 32 is adsorbed by magnetism. The annular magnetic plate 32 adsorbs the adsorption electromagnet 31 fixed inside the groove 30. The annular magnetic plate 32 slides along the inner wall of the clamping angle sleeve 29 and approaches the adsorption electromagnet 31 by using the deformation of the clamping spring 33. The power end of the electric push rod 21 shortens and drives the cylindrical workpiece to rise, completing the clamping operation for two groups of workpieces. At this time, workpieces are clamped inside the clamping angle sleeves 29 at both ends of the guide rail 5;

[0046] Since the slider 6 clamps and transports the workpiece unilaterally, the extrusion force of the slider 6 on the upper wall of the guide rail 5 is different, resulting in uneven force on the contact surface between the guide rail 5 and the slider 6, excessive local pressure, and accelerated wear. After the heavier cylindrical workpiece is clamped inside the clamping angle sleeve 29, the load weight on one side of the slider 6 increases, breaking the balance of the slider 6 in the initial state. The gravity sensed by the weighing sensors 17 at both ends of the bottom wall of the support base 2 changes. At this time, the slider 6 changes from the balanced state to the eccentric load state. One end of the slider 6 close to the strip plate 20 squeezes the pressure plate 15 at one end of the guide rail 5 close to the strip plate 20. The squeezing force received by the weighing end of the weighing sensor 17 from the pressure measuring spring 16 increases. The controller 34 controls the start of the voltage stabilizing electromagnet 40. The voltage stabilizing electromagnet 40 is fixed on the bottom wall of the support base 2 and is energized to generate magnetism. The voltage stabilizing electromagnet 40 and the strip magnet 39 are set with the same pole. Under the action of the magnetic field repulsive force between the strip magnet 39 and the voltage stabilizing electromagnet 40, the U-shaped plate 38 pulls the slider 6 downward. When the weighing values of the weighing sensors 17 at both ends of the bottom wall of the support base 2 are the same, the balance adjustment of the slider 6 is completed;

[0047] The controller 34 controls the start of the servo motor 10. The servo motor 10 drives the driving gear 12 to rotate through the power end. The driving gear 12 meshes with the rack 11. The driving gear 12 rolls along the rack 11 to drive the slider 6. The slider 6 slides along the guide rail 5 to drive the two groups of cylindrical workpieces close to the numerically controlled double-head lathe. When the voltage stabilizing electromagnet 40 moves horizontally below the strip magnet 39, no additional thrust or pulling force will be generated between the voltage stabilizing electromagnet 40 and the strip magnet 39. On the one hand, it can ensure the relative balance between the slider 6 and the guide rail 5. On the other hand, it can reduce the driving load pressure of the driving end of the servo motor 10;

[0048] The workpiece clamping port of the numerically controlled double-head lathe is automatically opened. The controller 34 controls the power end of the electric push rod 21 to extend. The electric push rod 21 drives the lifting plate 23 to descend through the connecting frame 24. The lifting plate 23 drives the cylindrical workpiece to be horizontally coaxial with the clamping port of the numerically controlled double-head lathe. The controller 34 controls the annular magnetic plate 32 to be powered off and demagnetized. The clamping spring 33 elastically resets to drive the annular magnetic plate 32 to slide inside the clamping angle sleeve 29. The annular magnetic plate 32 pushes the cylindrical workpiece into the clamping port of the numerically controlled double-head lathe. The numerically controlled double-head lathe automatically clamps the cylindrical workpiece. The annular magnetic plate 32 moves away from the side wall of the workpiece. The cylindrical workpiece inside one group of clamping angle sleeves 29 is taken off, and the cylindrical workpiece that has not been processed is still clamped inside the other group of clamping angle sleeves 29, completing the feeding operation of the workpiece;

[0049] After a set of workpieces inside the CNC double-head lathe are processed, the servo motor 10 drives the clamping angle sleeve 29 to approach the workpiece. The annular magnetic plate 32 fits against the side wall of the workpiece. The clamping opening of the CNC double-head lathe opens. The controller 34 controls the annular magnetic plate 32 to be energized. The annular magnetic plate 32 magnetically adsorbs the workpiece. Under the action of the magnetic field of the opposite pole of the adsorption electromagnet 31, the annular magnetic plate 32 uses the deformation of the clamping spring 33 to clamp the processed workpiece into the empty clamping angle sleeve 29. The controller 34 controls the power end of the servo motor 10 to reverse and drives the clamping angle sleeve 29 away from the clamping opening of the CNC double-head lathe;

[0050] Subsequently, the controller 34 controls the rotation clamp motor 27 to start. The rotation clamp motor 27 drives the steering block 28 to rotate through the power end. The steering block 28 drives another set of clamping angle sleeves 29 to approach the CNC double-head lathe, so that the unprocessed workpiece is horizontally coaxial with the clamping opening of the CNC double-head lathe. The power end of the servo motor 10 rotates forward to drive the unprocessed workpiece into the clamping opening of the CNC double-head lathe. The annular magnetic plate 32 is de-energized and demagnetized. The clamping spring 33 deforms and resets to push the annular magnetic plate 32. The annular magnetic plate 32 slides along the inner wall of the clamping angle sleeve 29 to push the workpiece into the clamping opening of the CNC double-head lathe. The CNC double-head lathe automatically clamps the workpiece, completing the material taking and loading operations of the CNC double-head lathe. At this time, only one of the two sets of clamping angle sleeves 29 contains the processed workpiece;

[0051] The controller 34 controls the servo motor 10 to reverse. The servo motor 10 drives the processed workpiece to move above the tray. The controller 34 controls the power end of the electric push rod 21 to extend. The extension of the power end of the electric push rod 21 drives the processed workpiece to approach the tray. The annular magnetic plate 32 is de-energized and demagnetized. The processed workpiece falls onto the tray, completing the unloading operation of the workpiece;

[0052] The power end of the electric push rod 21 shortens. The servo motor 10 drives a set of clamping angle sleeves 29 to reach above the workpiece. The power end of the electric push rod 21 extends again to put the clamping angle sleeve 29 over the outside of the workpiece. The annular magnetic plate 32 magnetically adsorbs. The annular magnetic plate 32 adsorbs the adsorption electromagnet 31 fixed inside the groove 30. The annular magnetic plate 32 slides along the inner wall of the clamping angle sleeve 29 close to the adsorption electromagnet 31 by using the deformation of the clamping spring 33. The shortening of the power end of the electric push rod 21 drives the cylindrical workpiece to rise, completing the clamping operation of a set of workpieces. The other set of clamping angle sleeves 29 is in an empty state, completing the material taking operation of the workpiece;

[0053] The servo motor 10 drives a group of workpieces to move beside the numerically controlled double-headed lathe. After the numerically controlled double-headed lathe finishes machining the workpieces inside it, the clamping angle sleeve 29 in the no-load state clamps the machined workpieces, unloads the machined workpieces, and then installs the unprocessed workpieces inside another clamping angle sleeve 29 into the clamping port of the numerically controlled double-headed lathe again, completing the unloading and loading operations of the numerically controlled double-headed lathe, so that the clamping angle sleeve 29 can perform loading and unloading operations on the workpieces both when approaching the tray and when approaching the numerically controlled double-headed lathe;

[0054] When the power end of the electric push rod 21 extends multiple times to drive the workpiece to descend, a certain inertia will be generated, which will increase the pressure on one side of the slider 6 and squeeze the guide rail 5, causing certain damage. The magnetism generated by the voltage-stabilizing electromagnet 40 is set with the same pole as the bar magnet 25. The voltage-stabilizing electromagnet 40 is fixed on the upper wall of the U-shaped plate 38. The voltage-stabilizing electromagnet 40 pushes the bar magnet 25 through repulsion, and the bar magnet 25 drives the lifting plate 23 to maintain a vertical state, thereby avoiding the extrusion damage phenomenon between the guide rail 5 and the slider 6 caused by the inertia generated by the descending gravity;

[0055] When the slider 6 tilts towards the load side, the slider 6 drives the limit block 42 to lift through the U-shaped plate 38. The limit block 42 limits the lifting amplitude of the U-shaped plate 38 by fitting with the top wall of the voltage-stabilizing groove 37, reducing the tilting degree of the slider 6 and the squeezing force of the slider 6 on the guide rail 5, ensuring the stable operation of the workpiece loading and unloading processing operations; Just repeat the above operations when using it next time.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] The above describes the present solution and its implementation manner. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present solution, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design a structural manner and an embodiment similar to the technical solution without creative efforts without departing from the creative purpose of the present solution, they shall fall within the protection scope of the present solution.

Claims

1. An automatic loading and unloading machine for a numerically controlled double-head lathe, comprising a support frame and a support base, characterized in that: It also includes a pressure-measuring guiding mechanism and an anti-inertia clamping mechanism. The support base is arranged on the upper wall of the support frame. The pressure-measuring guiding mechanism includes a sliding component, a driving component, a pressure-measuring component, and a voltage-stabilizing component. The sliding component is arranged on the upper wall of the support base, the driving component is arranged on the upper wall of the sliding component, the pressure-measuring component is arranged on the inner wall of the sliding component, and the voltage-stabilizing component is arranged on one side of the sliding component. The anti-inertia clamping mechanism includes a lifting component and a rotating clamping component. The lifting component is arranged on the side of the driving component away from the voltage-stabilizing component, and the rotating clamping component is arranged at one end of the lifting component close to the support frame. The sliding component includes a guide rail, a slider, and a sliding seat. The guide rail is arranged on the upper wall of the support base, the sliders are symmetrically arranged at both ends of the guide rail, the guide rail is slidably connected to the sliders, and the sliding seat is arranged on the upper wall of the sliders. The voltage-stabilizing component includes a voltage-stabilizing groove, a U-shaped plate, a strip magnet, a voltage-stabilizing electromagnet, a gravity block, and a limiting block. The voltage-stabilizing groove is arranged on the inner wall of one end of the support base away from the guide rail. The U-shaped plate penetrates the cavity of the voltage-stabilizing groove and is arranged on the side wall of the slider. One end of the U-shaped plate away from the slider is arranged below the support base. The strip magnet is arranged on the bottom wall of the support base. The voltage-stabilizing electromagnet is arranged on the upper wall of one end of the U-shaped plate close to the strip magnet. The gravity block is arranged on the bottom wall of one end of the U-shaped plate close to the voltage-stabilizing electromagnet. The limiting block is arranged on the upper wall of the U-shaped plate inside the voltage-stabilizing groove. The pressure-measuring component includes a pressure-measuring groove, a pressing plate, a pressure-measuring spring, a weighing sensor, and a strip groove. The pressure-measuring groove is arranged on the upper wall of the guide rail. The pressure-measuring groove is open on three sides. The strip grooves are symmetrically arranged on the bottom wall of the pressure-measuring groove. The strip grooves are open on three sides. The pressing plate is slidably arranged on the inner wall of the pressure-measuring groove. The pressure-measuring spring is arranged between the pressing plate and the bottom wall of the strip groove. Multiple groups of weighing sensors penetrate and are arranged between the guide rail and the inner wall of the support base. One side of the pressure-measuring spring away from the pressing plate is connected to the weighing end of the weighing sensor. The driving component includes a motor seat and a servo motor. The motor seat penetrates and is arranged on the inner wall of the sliding seat, and the servo motor is arranged inside the motor seat. The lifting component includes a strip plate, an electric push rod, a lifting groove, a lifting plate, a connecting frame, and a strip magnet. The strip plate is arranged on the side of the motor seat away from the servo motor. The electric push rod penetrates and is arranged on the top inner wall of the strip plate. The lifting groove is arranged at one end of the strip plate away from the electric push rod. The lifting groove is open on three sides. The lifting plate is slidably arranged on the inner wall of the lifting groove. The connecting frame is arranged between the lifting plate and the power end of the electric push rod. The strip magnet is arranged on the side of the lifting plate close to the support base. The rotating clamping component includes a rotating clamping motor, a steering block, a clamping angle sleeve, a groove, an adsorption electromagnet, an annular magnetic plate, and a clamping spring. The rotating clamping motor is arranged at one end of the lifting plate away from the strip plate. The rotating clamping motor is arranged on the side of the lifting plate close to the support frame. The steering block is arranged on the side of the lifting plate away from the rotating clamping motor. The power end of the rotating clamping motor penetrates the lifting plate and is connected to the steering block. Two groups of clamping angle sleeves are arranged at a right angle on the side wall of the steering block.

2. The automatic loading and unloading machine for a numerically controlled double-head lathe according to claim 1, characterized in that: The driving component further includes a rack and a driving gear. The rack is arranged on the upper wall of the support base on one side of the guide rail, and the driving gear is arranged on the power end of the servo motor. The driving gear meshes with the rack.

3. An automatic loading and unloading machine for a numerically controlled double-headed lathe according to claim 1, characterized in that: The groove is provided on the inner wall of one end of the clamping angle sleeve close to the steering block. The groove is open at one end. The adsorption electromagnet is provided on the inner wall of the groove. The annular magnetic plate is slidably provided on the inner wall of the end of the clamping angle sleeve far from the steering block. The clamping spring is provided between the inner wall of the groove outside the adsorption electromagnet and the annular magnetic plate. The clamping spring is normally in an extended state.

4. An automatic loading and unloading machine for a numerically controlled double-head lathe according to claim 1, characterized in that: The voltage stabilizing groove is open at both sides. The strip magnet is arranged opposite to the voltage stabilizing electromagnet. The limiting block is attached to the top wall of the voltage stabilizing groove.

Images