Equipment for processing core material without leaving cap head by nesting and processing method
By using nesting processing equipment and methods, the problem of residual caps at the end of the core material has been solved, achieving stable clamping and high-quality nesting processing, which is suitable for mass production.
Patent Information
- Application Number
- CN202511547114.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2025-11-28
AI Technical Summary
When the core material is processed to the end, it is out of control and the thin skin connecting it to the outer billet will be torn, resulting in cap residue, which affects the use of solid core material and reduces production efficiency.
A nesting processing device is adopted, which includes a machine tool base, headstock, tailstock, clamping rod, sliding mounting plate, oil feeder, drill rod box and hollow drill bit. The clamping assembly and clamping device ensure a stable connection between the core material and the outer billet. The hollow drill bit and oil feeder are used to cut the core material, avoiding the residue of the cap head.
This process achieves a core material without leaving any cap end, resulting in high processing quality, good precision and surface finish, making it suitable for mass production and improving production efficiency.
Smart Images
Figure CN121017602A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of machining equipment, in particular to a device and method for machining a sleeve material without leaving a cap head. BACKGROUND
[0002] Sleeve machining is a kind of annular cutting machining of ingot blank by deep hole drilling, boring machine or sleeve special machine, and core material is extracted at the same time, forming two products of hollow ingot blank and core material, that is, a certain diameter specification of solid ingot blank is taken out from the solid ingot blank body, and the original solid blank ingot is changed into a hollow ingot.
[0003] The existing technology has the problem that when the sleeve machining reaches the end and is about to be penetrated, the core material is in an uncontrollable state, the connecting thin skin of the outer blank ingot will be torn, and a part of the cap-shaped thin skin at the end of the core material cannot be removed, which is called a cap head, which will affect the use of the solid core material, and the production efficiency is reduced because the workpiece needs to be machined on the lathe again.
[0004] In order to solve the above problems, a device and method for machining a sleeve material without leaving a cap head are provided. SUMMARY
[0005] The present application provides a device and method for machining a sleeve material without leaving a cap head, which solves the problem that the existing technology has the problem that when the sleeve machining reaches the end and is about to be penetrated, the core material is in an uncontrollable state, the connecting thin skin of the outer blank ingot will be torn, and a part of the cap-shaped thin skin at the end of the core material cannot be removed, which is called a cap head, which will affect the use of the solid core material, and the production efficiency is reduced because the workpiece needs to be machined on the lathe again.
[0006] The technical scheme adopted by the present application is as follows: a rod-shaped material to be machined is provided, and a machine tool base, a machine tool headstock, a machine tool tailstock, a front clamping rod, a rear clamping rod, a sliding mounting plate, an oil feeder, a drill rod box, a hollow drill rod, a hollow drill bit, and a clamping assembly are further provided. A machine tool headstock is fixedly arranged at the upper front end of the machine tool base, and a machine tool tailstock is movably arranged at the upper rear end of the machine tool base. A front clamping rod is movably arranged at the rear end of the machine tool headstock, and a rear clamping rod is movably arranged at the front end of the machine tool tailstock. The machine tool headstock and the machine tool tailstock are both provided with a clamping assembly, the front clamping rod and the rear clamping rod are driven to move by the clamping assembly, the rod-shaped material to be machined is detachably arranged between the front clamping rod and the rear clamping rod, and the rod-shaped material to be machined is movably arranged above the machine tool base. An oil feeder is movably arranged at the rear of the machine tool headstock, and the oil feeder is slidably arranged at the upper end of the machine tool base. A drill rod box is arranged at the rear side of the oil feeder, and the drill rod box is movably arranged at the upper end of the machine tool base. A hollow shaft is fixedly provided at the output end of the front wall of the drill pipe box, and a hollow drill rod is fixedly provided at the front end of the hollow shaft. The hollow drill rod and the oil supply device are movably connected through each other. A hollow drill bit is fixedly provided at the front end of the hollow drill rod; The hollow drill bit and the rear end of the rod-shaped material to be processed are in detachable contact. The rear clamping rod is movably connected to the drill rod box, hollow shaft, hollow drill rod, oil feeder, and hollow drill bit.
[0007] Furthermore, two sliding mounting plates are slidably provided on the upper end of the machine tool base, and both sliding mounting plates are movably disposed on the front side of the oil feeder; Two clamping plates are slidably provided on the upper ends of the two sliding mounting plates, and sliding grooves are provided on the upper ends of the two sliding mounting plates. Sliding blocks that cooperate with the sliding grooves are provided on the lower ends of the four clamping plates, and the four sliding blocks are slidably disposed in the sliding grooves close to them. The rod-shaped material to be processed is detachably disposed between two clamping plates located on the same sliding mounting plate; The two sliders located in the same groove are threaded through the same bidirectional lead screw, and the two bidirectional lead screws are driven to rotate by external motors respectively; The inner walls of the two clamping plates located on the same sliding mounting plate are both inclined walls with equal slopes, and the rod-shaped material to be processed can be disassembled between the two adjacent inclined walls.
[0008] Furthermore, the clamping assembly includes a turntable, a connecting block, and a threaded rod; The inner walls of the machine tool headstock and the machine tool tailstock are respectively provided with rectangular through holes, and the front clamping rod and the rear clamping rod are slidably connected through the rectangular through holes adjacent to them; Connecting blocks are fixedly provided on the outer walls of the machine tool headstock and the machine tool tailstock, and turntables are rotatably provided on the outer sides of the two connecting blocks, and the first ends of threaded rods are fixedly provided on the inner walls of the two turntables. The two threaded rods are respectively rotatably connected to the adjacent connecting block; The two threaded rods are respectively movably disposed within the rectangular through hole adjacent to them; The front clamping rod and the rear clamping rod are respectively threaded onto the outer wall of the threaded rod that is close to it.
[0009] Furthermore, the inner walls of the front clamping rod and the rear clamping rod are respectively provided with a plurality of conical apexes at equal angles; Several conical apexes located on the same side are in detachable contact with the end face of the adjacent rod-shaped material to be processed.
[0010] Furthermore, the oil feeder, drill rod box, and machine tool tailstock are all controlled by stepper motors.
[0011] According to another aspect of the present invention, a processing method for a device for processing core material without leaving a cap head is provided, comprising the following steps; Step 1: Operate the output shafts of the two motors to rotate forward, causing the two clamping plates on the same sliding mounting plate to separate from each other, providing space for the rod-shaped material to be processed to be placed in; Step 2: Place the rod-shaped material to be processed on the upper end of the two sliding mounting plates, then operate the motor to make the two bidirectional lead screws rotate in opposite directions, so that the two clamping plates on the same sliding mounting plate move closer to each other and lift the rod-shaped material to be processed to a position coaxial with the machining center, then turn off the motor. Step 3: Start the stepper motor that controls the movement of the oil feeder, so that the oil feeder feeds towards the machine headstock, and the front wall of the oil feeder touches the rear end of the bar-shaped material to be processed. Through continuous feeding, the two sliding mounting plates will be driven to approach the machine headstock, and finally the front end of the bar-shaped material to be processed, which is supported by the two sliding mounting plates, will contact the rear wall of the machine headstock. Disconnect the stepper motor that controls the movement of the oil feeder to achieve lateral fastening of the bar-shaped material to be processed. Step 4: Rotate the turntables at both ends of the equipment to push the front and rear clamping rods closer to the two ends of the rod-shaped material to be processed, until the several conical tips on both sides are embedded into the two end faces of the rod-shaped material to be processed, so as to achieve further tightening. Step 5: Start the stepper motor that controls the movement of the drill rod box, and start the motor on the drill rod box that controls the hollow shaft. The drill rod box starts to drive the hollow drill rod and hollow drill bit to start cutting the back wall of the bar-shaped material to be processed. When the hollow drill bit first contacts the rear end face of the bar-shaped material to be processed, the oil supply device starts to spray cutting fluid onto the hollow drill bit. Step Six: After the hollow drill bit rotates to the front end of the rod-shaped material to be processed, it continues to feed a certain distance past the front end. Then, disconnect the stepper motor that controls the movement of the drill rod box, the motor that controls the rotation of the hollow drill rod, and the oil feeder to complete the processing. Step 7: After processing is completed, start the stepper motor that controls the movement of the drill rod box, so that the drill rod box drives the hollow drill rod to move away from the rod-shaped material to be processed. After the hollow drill bit is completely separated from the rear end face of the processed rod-shaped material by a certain distance, stop the stepper motor that controls the movement of the drill rod box. Step 8: Start the stepper motor that controls the movement of the oil feeder to move the oil feeder away from the rear end face of the rod-shaped material to be processed, and then turn off the stepper motor to provide space for removing the processed rod-shaped material; Step 9: Rotate the turntables at both ends of the equipment in opposite directions to disengage the front and rear clamping rods from the processed rod-shaped material, thereby releasing the restriction on the lateral degree of freedom of the processed rod-shaped material. Step 10: Restart the motor to rotate forward, causing the two clamping plates on the same sliding mounting plate to separate from each other. At this point, the processed rod-shaped material can be removed, resulting in a hollow rod-shaped material after nesting and a core material without a cap.
[0012] Advantages of this invention: After the core material is processed using this equipment, the core material is consistent front to back without leaving any caps. During the processing, the core material and the outer billet are firmly clamped without shaking. The processing quality is good, with high precision and smoothness. It avoids the rotational swaying caused by clamping eccentricity due to the billet not being straight or having a rough surface. This equipment is suitable for mass production of core materials, such as batch processing of hollow billet in the billet preparation workshop of a double-action aluminum alloy extrusion production line.
[0013] In addition to the objectives, features and advantages described above, the present invention has other objectives, features and advantages, which will be further described in detail below with reference to the figures. Attached Figure Description
[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0015] Figure 1 This is a simplified schematic diagram of the overall structure of the present invention; Figure 2 This is a side sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the installation of the conical tip of the present invention; Figure 4 This is a schematic diagram showing the clamped state of the core material without a cap head according to the present invention; Figure 5 This is a schematic diagram of the state during the processing of the present invention; Figure 6 This is a schematic diagram showing the state of the process when the present invention is completed; Figure 7 This is a schematic diagram illustrating the working principle of the clamping assembly of the present invention; Figure 8 This is a schematic diagram of the installation of the clamping plate and the sliding mounting plate of the present invention.
[0016] Figure label: 1 is the connecting block. 2 is the front clamping rod. 3 is the machine headstock. 4 is the bar-shaped material to be processed. 5 is the sliding mounting plate. 6 is the hollow drill bit. 7 is the hollow bar-shaped material after nesting. 8 is the core material without a cap. 9 is the rear clamping rod. 10 is the oil feeder. 11 is the hollow drill rod. 12 is the drill rod box. 13 is the machine tailstock. 14 is the machine base. 15 is the turntable. 16 is the threaded rod. 301 is a rectangular through hole; 501 is the clamping plate, and 502 is the slider; 901 is a conical tip. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention.
[0018] In the description of the invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.
[0019] refer to Figures 1 to 8 A device and processing method for processing core material without leaving a cap, comprising a rod-shaped material to be processed 4, and also comprising a machine tool base 14, a machine tool headstock 3, a machine tool tailstock 13, a front clamping rod 2, a rear clamping rod 9, a sliding mounting plate 5, an oil feeder 10, a drill rod box 12, a hollow drill rod 11, a hollow drill bit 6, and a clamping assembly. A headstock 3 is fixedly installed on the upper front end of the machine tool base 14, and a tailstock 13 is movably installed on the upper rear end of the machine tool base 14. The machine tool base 14 is the supporting component of this equipment. Both the headstock 3 and the tailstock 13 are used to install the clamping assembly described later. The tailstock 13 can be moved to adapt to the length of the rod-shaped material 4 to be processed. The front clamping rod 2 is movably installed at the rear end of the machine headstock 3, and the rear clamping rod 9 is movably installed at the front end of the machine tailstock 13. The front clamping rod 2 and the rear clamping rod 9 can be further clamped by the clamping assembly described later. Both the headstock 3 and the tailstock 13 of the machine tool are equipped with clamping components. The front clamping rod 2 and the rear clamping rod 9 are driven to move by the clamping components. The bar-shaped material 4 to be processed is detachably installed between the front clamping rod 2 and the rear clamping rod 9. The bar-shaped material 4 to be processed is movably installed above the machine tool base 14. An oil supply device 10 is movably installed at the rear of the machine tool headstock 3. The oil supply device 10 is slidably installed on the upper end of the machine tool base 14. The oil supply device 10 is used to replenish the cutting fluid for the hollow drill bit 6 described later. This is prior art and will not be described in detail here. A drill rod box 12 is installed on the rear side of the oil feeder 10. The drill rod box 12 is movably installed on the upper end of the machine tool base 14. The drill rod box 12 can also be a boring bar box, which can be replaced by the operator according to the processing situation and different process flow. A hollow shaft is fixedly installed at the output end of the front wall of the drill rod box 12. A hollow drill rod 11 is fixedly installed at the front end of the hollow shaft. The hollow drill rod 11 and the oil supply device 10 are movably connected through each other. After the drill rod box 12 is started, it will drive the hollow shaft to start rotating. The hollow shaft can drive the hollow drill rod 11 fixed to it to start rotating by rotating, and then drive the hollow drill bit 6 to start rotating to perform nesting operation on the rod-shaped material 4 to be processed. A hollow drill bit 6 is fixedly installed at the front end of the hollow drill rod 11. The hollow structure inside the hollow drill rod 11 and the hollow drill bit 6 can provide space for the movement of the rear clamping rod 9. The hollow drill bit 6 and the rear end of the rod-shaped material 4 to be processed are in detachable contact; The rear clamping rod 9 is movably connected between the drill rod box 12, the hollow shaft, the hollow drill rod 11, the oil feeder 10, and the hollow drill bit 6.
[0020] Two sliding mounting plates 5 are slidably installed on the upper end of the machine tool base 14. Both sliding mounting plates 5 are movably installed on the front side of the oil feeder 10. Two clamping plates 501 are slidably installed on the upper end of the two sliding mounting plates 5. The upper end of the two sliding mounting plates 5 is provided with a sliding groove. The lower end of the four clamping plates 501 is provided with a slider 502 that cooperates with the sliding groove. The four sliders 502 are slidably installed in the sliding groove that is close to them. The rod-shaped material 4 to be processed is detachably installed between two clamping plates 501 located on the same sliding mounting plate 5; Two sliders 502 located in the same groove are threaded through the same bidirectional lead screw, and the two bidirectional lead screws are driven to rotate by external motors respectively; The inner walls of the two clamping plates 501 located on the same sliding mounting plate 5 are both inclined walls with equal slopes. The rod-shaped material 4 to be processed can be detached between the two adjacent inclined walls. The rod-shaped material 4 to be processed is placed between the four clamping plates 501. By starting the external motor, the two clamping plates 501 located on the same sliding mounting plate 5 can be controlled to move closer to each other. As the two clamping plates 501 gradually move closer to the rod-shaped material 4 to be processed, their inclined walls will lift the rod-shaped material 4 to be processed, and can ensure that rod-shaped materials 4 with different outer diameters can be lifted to the position coaxial with the machining center, which has strong adaptability. Then, with the cooperation of the clamping component described later, it can be ensured that the rod-shaped material 4 to be processed will not move up and down on the machining axis.
[0021] The clamping assembly includes a turntable 15, a connecting block 1, and a threaded rod 16; The inner walls of the machine tool headstock 3 and the machine tool tailstock 13 are respectively provided with rectangular through holes 301, and the front clamping rod 2 and the rear clamping rod 9 are slidably connected through the rectangular through holes 301 that are close to them. Connecting blocks 1 are fixedly installed on the outer walls of the machine tool headstock 3 and the machine tool tailstock 13 respectively. Turntables 15 are rotatably installed on the outer sides of the two connecting blocks 1 respectively. The first end of the threaded rod 16 is fixedly installed on the inner wall of the two turntables 15 respectively. The two threaded rods 16 are respectively rotatably connected to the adjacent connecting block 1; Two threaded rods 16 are respectively movably installed in the rectangular through holes 301 that are close to them; The front clamping rod 2 and the rear clamping rod 9 are respectively threaded onto the outer wall of the threaded rod 16 that is close to them. Rotating the turntable 15 will drive the threaded rod 16 that is fixedly installed to it to start rotating. During the rotation of the two threaded rods 16, they will drive the front clamping rod 2 and the rear clamping rod 9 that are threaded on the outside to start advancing. Since the front clamping rod 2 and the rear clamping rod 9 are respectively slidably installed in the rectangular through hole 301 that they cooperate with, the front clamping rod 2 and the rear clamping rod 9 will not rotate during the movement. During the movement, the front clamping rod 2 and the rear clamping rod 9 will respectively press against the front end face and the rear end face of the rod-shaped material 4 to be processed, restricting its ability to move back and forth. Preferably, the front clamping rod 2 and the rear clamping rod 9 can also be driven by a hydraulic cylinder.
[0022] Several conical tips 901 are installed at equal angles on the inner walls of the front clamping rod 2 and the rear clamping rod 9 respectively; Several conical tips 901 located on the same side are detachably in contact with the end face of the rod-shaped material 4 to be processed, which is close to them. When the front clamping rod 2 and the rear clamping rod 9 press against the front and rear faces of the rod-shaped material 4 to be processed, respectively, all the conical tips 901 will be embedded in the end face of the rod-shaped material 4 to be processed, which provides a resistance force much greater than the friction force. Assuming the resistance force arm is the radius R of the circle, it is much larger than the force arm when there is a single tip, which can obtain sufficient resistance torque, thereby ensuring that the core material has sufficient self-holding torque during processing and does not rotate with the tool, thus obtaining better processing effect and processing quality.
[0023] The oil feeder 10, drill rod box 12, and machine tool tailstock 13 are all controlled by stepper motors. The oil feeder 10 and drill rod box 12 can slide back and forth on the machine tool base 14 under the control of the stepper motors that cooperate with them, and have a certain limit function during the sliding process. While being driven by the motor that controls its movement, the drill rod box 12 can be used to advance and rotate the rod-shaped material 4 to be processed for nesting by rotating the hollow drill bit 6. The machine tool tailstock 13 can provide a larger placement space for the longer rod-shaped material 4 to be processed by movement.
[0024] The processing method of this equipment for processing core materials without leaving a cap includes the following steps: Step 1: Operate the output shafts of the two motors to rotate forward, so that the two clamping plates 501 located on the same sliding mounting plate 5 separate from each other, providing space for the rod-shaped material 4 to be processed to be placed in. Step 2: Place the rod-shaped material 4 to be processed on the upper end of the two sliding mounting plates 5, then operate the motor to make the two bidirectional lead screws rotate in opposite directions, so that the two clamping plates 501 located on the same sliding mounting plate 5 move closer to each other and lift the rod-shaped material 4 to be processed to a position coaxial with the machining center, and then turn off the motor. Step 3: Start the stepper motor that controls the movement of the oil feeder 10, so that the oil feeder 10 is fed towards the machine headstock 3, and the front wall of the oil feeder 10 touches the rear end of the bar-shaped material 4 to be processed. Through continuous feeding, the two sliding mounting plates 5 will be driven to approach the machine headstock 3 respectively, and finally the front end of the bar-shaped material 4 to be processed, which is supported by the two sliding mounting plates 5, will contact the rear wall of the machine headstock 3. Disconnect the stepper motor that controls the movement of the oil feeder 10 to achieve lateral fastening of the bar-shaped material 4 to be processed. The machine headstock 3 and the oil feeder 10 are respectively pressed against the two sides of the bar-shaped material 4 to be processed, which can effectively prevent the lateral movement of the bar-shaped material 4 to be processed. The front wall of the oil feeder 10 and the rear wall of the machine headstock 3 are equipped with clamping flanges to contact the front and rear end faces of the bar-shaped material 4 to be processed and to achieve axial clamping function. Step 4: Rotate the turntables 15 at both ends of the equipment to push the front clamping rod 2 and the rear clamping rod 9 closer to the two ends of the rod-shaped material 4 to be processed, until the conical tips 901 on both sides are embedded in the two end faces of the rod-shaped material 4 to be processed, so as to achieve further fastening. The purpose is to enable the front clamping rod 2 and the rear clamping rod 9 to abut against the front and rear end faces of the rod-shaped material 4 to be processed, respectively. By the conical tips 901 being stuck in the end faces of the rod-shaped material 4 to be processed, it can be effectively prevented from being driven to rotate by the hollow drill bit 6 when it comes into contact with the hollow drill bit 6, so as to achieve better processing results. Step 5: Start the stepper motor that controls the movement of the drill rod box 12, and start the motor that controls the hollow shaft on the drill rod box 12. The drill rod box 12 starts to drive the hollow drill rod 11 and hollow drill bit 6 to start cutting the material towards the rear wall of the rod-shaped material 4 to be processed. When the hollow drill bit 6 first contacts the rear end face of the rod-shaped material 4 to be processed, the oil supply device 10 starts to spray cutting fluid onto the hollow drill bit 6. When the hollow drill bit 6 first touches the rear wall of the rod-shaped material 4 to be processed, the processing begins. At this time, the oil supply device 10 will spray cutting fluid from inside the hollow drill bit 6 into the rod-shaped material 4 to be processed for cooling the cutting head. Step 6: After the hollow drill bit 6 rotates to the front end face of the rod-shaped material 4 to be processed, it continues to feed a certain distance past the front end face. Then, disconnect the stepper motor controlling the movement of the drill rod box 12, the motor controlling the rotation of the hollow drill rod 11, and the oil feeder 10 to complete the processing. When the hollow drill bit 6 passes the front end face of the rod-shaped material 4 to be processed, the core material and the outer blank can be separated. Step 7: After processing is completed, start the stepper motor that controls the movement of the drill rod box 12, so that the drill rod box 12 drives the hollow drill rod 11 to move away from the rod-shaped material 4 to be processed. After the hollow drill bit 6 is completely separated from the rear end face of the processed rod-shaped material 4 by a certain distance, stop the stepper motor that controls the movement of the drill rod box 12. At this time, the hollow drill bit 6 is separated from the rod-shaped material 4 to be processed, providing space for removal. Step 8: Start the stepper motor that controls the movement of the oil feeder 10 to move the oil feeder 10 away from the rear end face of the rod-shaped material 4 to be processed, and then turn off the stepper motor to provide space for removing the processed rod-shaped material. Step 9: Rotate the turntables 15 at both ends of the equipment in opposite directions to disengage the front clamping rod 2 and the rear clamping rod 9 from the processed rod material, thereby releasing the restriction on the lateral degree of freedom of the processed rod material. Step 10: Restart the motor to rotate forward, causing the two clamping plates 501 located on the same sliding mounting plate 5 to separate from each other. At this time, the processed rod-shaped material can be taken out, resulting in a hollow rod-shaped material after nesting and a core material without a cap. Since the processed rod-shaped material has been freed from lateral and longitudinal movement restrictions, when the processed rod-shaped material is taken out, hollow rod-shaped material 7 and core material without a cap 8 can be obtained respectively.
[0025] Implementation method of the present invention: The output shafts of the two motors are rotated forward to separate the two clamping plates 501 located on the same sliding mounting plate 5, providing space for the rod-shaped material 4 to be processed to be placed in. Place the bar-shaped material 4 to be processed on the upper end of the two sliding mounting plates 5, then operate the motor to make the two bidirectional lead screws rotate in opposite directions, so that the two clamping plates 501 located on the same sliding mounting plate 5 move closer to each other and lift the bar-shaped material 4 to be processed to a position coaxial with the machining center. Then turn off the motor and start the stepper motor that controls the movement of the oil feeder 10, so that the oil feeder 10 feeds towards the machine headstock 3, so that the front wall of the oil feeder 10 touches the rear end of the bar-shaped material 4 to be processed. Through continuous feeding, the two sliding mounting plates 5 will move closer to the machine headstock 3 respectively, and finally the front end of the bar-shaped material 4 to be processed, which is carried by the two sliding mounting plates 5, contacts the rear wall of the machine headstock 3. Then disconnect the stepper motor that controls the movement of the oil feeder 10. Rotate the turntables 15 at both ends of the equipment respectively, and push the front clamping rod 2 and the rear clamping rod 9 toward the two ends of the rod-shaped material 4 to be processed, until the several conical tips 901 on both sides are embedded into the two end faces of the rod-shaped material 4 to be processed, so as to achieve further fastening. Start the stepper motor that controls the movement of the drill rod box 12, and start the motor on the drill rod box 12 that controls the hollow shaft. The drill rod box 12 starts to drive the hollow drill rod 11 and the hollow drill bit 6 to start cutting the material towards the back wall of the rod-shaped material 4 to be processed. After the hollow drill bit 6 rotates to the front end face of the rod-shaped material 4 to be processed, it continues to feed a certain distance past the front end face. Then, the stepper motor controlling the movement of the drill rod box 12, the motor controlling the rotation of the hollow drill rod 11, and the oil feeder 10 are disconnected to complete the processing. After processing is completed, start the stepper motor that controls the movement of the drill rod box 12, so that the drill rod box 12 drives the hollow drill rod 11 to move away from the rod-shaped material 4 to be processed. After the hollow drill bit 6 is completely separated from the rear end face of the processed rod-shaped material 4 by a certain distance, stop the stepper motor that controls the movement of the drill rod box 12. Start the stepper motor that controls the movement of the oil feeder 10 to move the oil feeder 10 away from the rear end face of the rod-shaped material 4 to be processed, and then turn off the stepper motor. Rotate the turntables 15 at both ends of the equipment in opposite directions to disengage the front clamping rod 2 and the rear clamping rod 9 from the processed rod-shaped material. Restart the motor to rotate forward, causing the two clamping plates 501 located on the same sliding mounting plate 5 to separate from each other. At this point, the processed rod-shaped material can be taken out, resulting in a hollow rod-shaped material after nesting and a core material without a cap.
[0026] After the core material is processed using this equipment, the core material is consistent front to back without leaving any caps. During the processing, the core material and the outer billet are firmly clamped without shaking. The processing quality is good, with high precision and smoothness. It avoids the rotational swaying caused by clamping eccentricity due to the billet not being straight or having a rough surface. This equipment is suitable for mass production of core materials, such as batch processing of hollow billet in the billet preparation workshop of a double-action aluminum alloy extrusion production line.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for processing core material without leaving a cap, comprising a rod-shaped material to be processed (4), characterized in that: It also includes a machine tool base (14), a machine tool headstock (3), a machine tool tailstock (13), a front clamping rod (2), a rear clamping rod (9), a sliding mounting plate (5), an oil feeder (10), a drill rod box (12), a hollow drill rod (11), a hollow drill bit (6), and a clamping assembly; The upper front end of the machine tool base (14) is fixedly provided with a machine tool headstock (3), and the upper rear end of the machine tool base (14) is movably provided with a machine tool tailstock (13). The machine tool headstock (3) is movably provided with a front clamping rod (2) at its rear end, and the machine tool tailstock (13) is movably provided with a rear clamping rod (9) at its front end. Both the headstock (3) and tailstock (13) of the machine tool are provided with clamping components. The front clamping rod (2) and the rear clamping rod (9) are driven to move by the clamping components. The bar-shaped material (4) to be processed is detachably disposed between the front clamping rod (2) and the rear clamping rod (9). The bar-shaped material (4) to be processed is movably disposed above the machine tool base (14). An oil feeder (10) is movably provided behind the machine tool headstock (3), and the oil feeder (10) is slidably disposed on the upper end of the machine tool base (14). The oil feeder (10) is provided with a drill rod box (12) on the rear side, and the drill rod box (12) is movably disposed on the upper end of the machine tool base (14); A hollow shaft is fixedly provided at the output end of the front wall of the drill rod box (12), and a hollow drill rod (11) is fixedly provided at the front end of the hollow shaft. The hollow drill rod (11) and the oil supply device (10) are movably connected through each other. The hollow drill rod (11) is fixedly provided with a hollow drill bit (6) at its front end. The hollow drill bit (6) and the rear end of the rod-shaped material (4) to be processed are in detachable contact; The rear clamping rod (9) is movably connected between the drill rod box (12), the hollow shaft, the hollow drill rod (11), the oil supply device (10), and the hollow drill bit (6).
2. The equipment for processing core material without leaving a cap head as described in claim 1, characterized in that: The upper end of the machine tool base (14) is provided with two sliding mounting plates (5), and both sliding mounting plates (5) are movably disposed on the front side of the oil feeder (10). Two clamping plates (501) are slidably provided on the upper ends of the two sliding mounting plates (5), and the upper ends of the two sliding mounting plates (5) are respectively provided with sliding grooves. The lower ends of the four clamping plates (501) are respectively provided with sliders (502) that cooperate with the sliding grooves. The four sliders (502) are respectively slidably provided in the sliding grooves close to them. The rod-shaped material (4) to be processed is detachably disposed between the two clamping plates (501) located on the same sliding mounting plate (5); The two sliders (502) located in the same groove are internally threaded through the same bidirectional lead screw, and the two bidirectional lead screws are driven to rotate by external motors respectively; The inner walls of the two clamping plates (501) located on the same sliding mounting plate (5) are both inclined walls with equal slopes, and the rod-shaped material (4) to be processed can be disassembled between the two adjacent inclined walls.
3. The equipment for processing core material without leaving a cap as described in claim 1, characterized in that: The clamping assembly includes a turntable (15), a connecting block (1), and a threaded rod (16). The inner walls of the machine tool headstock (3) and the machine tool tailstock (13) are respectively provided with rectangular through holes (301), and the front clamping rod (2) and the rear clamping rod (9) are slidably connected to the rectangular through holes (301) adjacent to them. Connecting blocks (1) are fixedly provided on the outer walls of the machine tool headstock (3) and the machine tool tailstock (13), and turntables (15) are rotatably provided on the outer sides of the two connecting blocks (1), and the first ends of threaded rods (16) are fixedly provided on the inner walls of the two turntables (15). The two threaded rods (16) are rotatably connected to the connecting block (1) adjacent to them; The two threaded rods (16) are respectively movably disposed in the rectangular through holes (301) adjacent to them; The front clamping rod (2) and the rear clamping rod (9) are respectively threaded onto the outer wall of the threaded rod (16) that is close to it.
4. The equipment for processing core material without leaving a cap as described in claim 3, characterized in that: The inner walls of the front clamping rod (2) and the rear clamping rod (9) are provided with a number of conical tips (901) at equal angles. Several conical tips (901) located on the same side are in detachable contact with the end face of the adjacent rod-shaped material (4) to be processed.
5. The equipment for processing core material without leaving a cap head as described in claim 1, characterized in that: The oil feeder (10), drill rod box (12) and machine tool tailstock (13) are all controlled by stepper motors.
6. A device and method for processing core material without leaving a cap during nesting, based on the device for processing core material without leaving a cap as described in any one of claims 1 to 5, characterized in that: Includes the following steps: Step 1: Operate the output shafts of the two motors to rotate forward, so that the two clamping plates (501) located on the same sliding mounting plate (5) are separated from each other, providing space for the rod-shaped material (4) to be processed to be placed in; Step 2: Place the bar-shaped material (4) to be processed on the upper end of the two sliding mounting plates (5), and then operate the motor to make the two bidirectional lead screws rotate in opposite directions, so that the two clamping plates (501) located on the same sliding mounting plate (5) move closer to each other and lift the bar-shaped material (4) to be processed to the position coaxial with the machining center, and then turn off the motor. Step 3: Start the stepper motor that controls the oil feeder (10) to feed the oil feeder (10) toward the machine headstock (3) so that the front wall of the oil feeder (10) touches the rear end of the bar-shaped material (4) to be processed. Through continuous feeding, the two sliding mounting plates (5) will be driven to approach the machine headstock (3) respectively, and finally the front end of the bar-shaped material (4) to be processed, which is carried by the two sliding mounting plates (5), will contact the rear wall of the machine headstock (3). Disconnect the stepper motor that controls the oil feeder (10) to achieve lateral fastening of the bar-shaped material (4) to be processed. Step 4: Rotate the turntables (15) at both ends of the equipment respectively, and push the front clamping rod (2) and the rear clamping rod (9) towards the two ends of the rod-shaped material (4) to be processed, until the several conical tips (901) on both sides are embedded into the two end faces of the rod-shaped material (4) to be processed, so as to achieve further tightening; Step 5: Start the stepper motor that controls the movement of the drill rod box (12) and start the motor that controls the hollow shaft on the drill rod box (12). The drill rod box (12) starts to drive the hollow drill rod (11) and hollow drill bit (6) to start cutting the back wall of the rod material (4) to be processed. When the hollow drill bit (6) first contacts the rear end face of the rod material (4) to be processed, the oil supply device (10) starts to spray cutting fluid onto the hollow drill bit (6). Step 6: After the hollow drill bit (6) rotates to the front end face of the rod-shaped material (4) to be processed, it continues to feed a certain distance past the front end face. Then, disconnect the stepper motor that controls the movement of the drill rod box (12), the motor that controls the rotation of the hollow drill rod (11), and the oil feeder (10) to complete the processing. Step 7: After processing is completed, start the stepper motor that controls the movement of the drill rod box (12) so that the drill rod box (12) drives the hollow drill rod (11) to move away from the rod-shaped material (4) to be processed. After the hollow drill bit (6) is completely separated from the rear end face of the processed rod-shaped material (4) by a certain distance, stop the stepper motor that controls the movement of the drill rod box (12). Step 8: Start the stepper motor that controls the oil feeder (10) to move the oil feeder (10) away from the rear end face of the rod-shaped material (4) to be processed, and then turn off the stepper motor to provide space for taking out the processed rod-shaped material; Step 9: Rotate the turntables (15) at both ends of the equipment in opposite directions to disengage the front clamping rod (2) and the rear clamping rod (9) from the processed rod material, thereby releasing the restriction on the lateral freedom of the processed rod material. Step 10: Start the motor again to rotate forward, so that the two clamping plates (501) located on the same sliding mounting plate (5) can be separated from each other. At this time, the processed rod-shaped material can be taken out to obtain the hollow rod-shaped material (7) after the material is nested and the core material (8) without the cap.