Numerically-controlled lathe with swing arm for feeding and control method of numerically-controlled lathe

Abstract

The invention relates to the technical field of numerical control lathes, in particular to a numerical control lathe with a swing arm for feeding and a control method thereof.The numerical control lathe comprises a machining table, a vibration cylinder fixed to one side of the machining table, a guide plate fixedly communicated with an outlet of the vibration cylinder, and a swing arm fixed to the other side of the machining table, the guiding device is used for guiding and conveying the raw materials falling from the oscillation cylinder; the swing arm assembly is fixed to the top of the machining table through a first supporting plate and used for clamping and transferring the raw materials conveyed by the guide plate to the clamping assembly to be clamped and machined; the fallen material collecting assembly is fixed to the top of the lowest end of the guide plate; according to the device, through the arrangement of the falling material collecting assembly, defective raw materials are screened, the safety in the equipment operation process is improved, and the situation that the machining efficiency of the equipment is affected due to generation of poor products is avoided.

Description

Technical Field

[0001] The invention relates to the field of numerically controlled lathes, and in particular to a numerically controlled lathe with swing arm feeding and a control method thereof. Background Art

[0002] CNC lathe is an automated machine tool that uses digital control technology to control the movement of the machine tool. It can automatically complete turning tasks according to pre-programmed programs. It has the characteristics of high precision, high efficiency and high degree of automation. CNC lathes are widely used in the field of mechanical manufacturing and can process parts of various complex shapes.

[0003] When using a swing arm to transport raw materials to a CNC lathe, the feeding process can be carried out smoothly if the raw materials are intact. However, if the raw materials are damaged, on the one hand, the raw materials may fall off during the feeding process, and the raw materials that fall off during the transportation process may fall and damage the equipment. On the other hand, when the damaged raw materials are transported to the CNC lathe for processing, the scrap rate during the processing will increase, affecting the processing efficiency of the CNC lathe. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a CNC lathe with swing arm feeding and a control method thereof.

[0005] In a first aspect, the present invention provides a CNC lathe with swing arm feeding, comprising a processing table, a clamping assembly and a tool assembly that cooperate with each other are installed on the top of the processing table, and further comprising: An oscillating cylinder is fixed to one side of the processing table, and a guide plate is fixedly connected to the outlet of the oscillating cylinder to guide and transport the raw materials falling from the oscillating cylinder; A swing arm assembly, fixed to the top of the processing table through a first support plate, and used for clamping and transferring the raw material transmitted by the guide plate to the clamping assembly for clamping and processing; A connecting rod, fixedly supported and connected between the guide plate and the first supporting plate; A falling material collection assembly is fixed to the top of the lowest end of the guide plate, and the swing arm assembly clamps the raw material through the inside of the falling material collection assembly to recover the raw material whose surface is damaged and the clamping is unstable and falls; The staff places the raw material inside the oscillating cylinder. Under the action of the oscillating cylinder, the raw material falls down along the guide plate in sequence. When the raw material falls to the bottom of the guide plate, it is intercepted and stopped by the edge of the guide plate. A notch is provided at the bottom of the guide plate. At this time, when the clamping end of the swing arm assembly moves to the notch position at the bottom of the guide plate, the raw material can be clamped through the notch, so that the swing arm assembly drives the raw material to move toward the clamping assembly through clamping, until the raw material is inserted into the inside of the clamping assembly. The clamping assembly can clamp the raw material and drive the raw material to rotate, and then the tool assembly is controlled to move toward the raw material clamped by the clamping assembly, and the raw material is turned to realize automatic feeding processing of the raw material; In the process of the swing arm assembly clamping and moving the raw material, the swing arm assembly drives the raw material to pass through the falling material collection assembly. Within the range of the falling material collection assembly, if the raw material is damaged on the outside, and there are grooves and unevenness on the outside of the raw material, the swing arm assembly is controlled to keep the clamping position of the raw material unchanged. Therefore, when the raw material is damaged on the outside and has grooves and unevenness, there is no fulcrum when the swing arm assembly clamps the raw material, which causes the raw material to fall due to unstable clamping. At this time, the fallen raw material is collected along the falling material collection assembly. By controlling the clamping force of the swing arm assembly, the swing arm assembly is kept The clamping force is maintained at a level that can stably clamp the intact raw materials. At this time, the raw materials with grooves on the surface will fall due to unstable clamping, thereby screening the defective raw materials. On the one hand, by screening the defective raw materials and making them fall and be collected within the range of the falling material collection component, it is beneficial to avoid the raw materials falling during the clamping movement and causing damage to the equipment, which is beneficial to improving the safety of the equipment during operation. On the other hand, by screening and collecting the defective raw materials, it is beneficial to avoid the defective raw materials being transported to the clamping component for processing, and finally generating poor products that affect the processing efficiency of the equipment.

[0006] Preferably, the swing arm assembly comprises: A rotating rod, one end of which is supported by a bracket, the rotating rod is rotatably connected to the bracket, and the bracket is slidably mounted on the top of the first support plate; A driving mechanism, mounted on the top of the first supporting plate, for driving the rotating rod to rotate; A pushing mechanism, installed on the top of the first supporting plate, used to push the rotating rod to move; A rotating arm is detachably fixed to the end of the rotating rod, and a rotating plate is mounted on the side wall of the rotating arm via a flip adjustment mechanism; Two clamping jaws are symmetrically fixedly mounted on both ends of the rotating plate, and the clamping jaws are used to clamp the raw material; When the material needs to be clamped, the pushing mechanism pushes the rotating rod to move in the direction away from the guide plate, so that the rotating rod drives the rotating arm to rotate without being hindered by the material on the guide plate. The rotating rod drives the rotating arm to rotate in the direction of the guide plate under the driving action of the driving mechanism, until the rotating arm rotates to align with the material at the bottom of the guide plate, the driving mechanism stops driving the rotating rod to rotate. At this time, the pushing mechanism starts again to drive the rotating rod to move in the direction close to the guide plate, so that the clamping claw approaches the raw material from the position of the notch to clamp the raw material. After the clamping claw completes clamping the raw material, the flipping adjustment mechanism drives the rotating plate to rotate, thereby driving the clamping claw to rotate, so that the clamping claw drives the raw material to pass through the falling material collection assembly. At this time, if the raw material falls, then after the clamping claw passes through the falling material collection assembly, the flipping adjustment mechanism continues to drive the rotating plate to rotate, and after the rotating plate rotates, it drives another clamping claw to flip, and during the rotation of the rotating plate, the pushing mechanism starts again to drive the rotating plate The movable rod drives the clamping claw to move in the direction away from the guide plate until the rotating plate is flipped to a position flush with the rotating arm, that is, the other clamping claw is flipped to a position aligned with the raw material at the bottom of the guide plate, and the pushing mechanism is started again to drive the rotating rod to move in the direction of the guide plate, so that the other clamping claw clamps the raw material and conveys the raw material again until the conveyed raw material is intact and no longer falls at the position of the falling material collection assembly. Subsequently, after the clamping claw drives the raw material to pass through the falling material collection assembly, the driving mechanism is started again to drive the rotating rod to rotate, and at the same time the flipping adjustment mechanism slowly stops rotating and drives the rotating plate to rotate back toward the rotating arm, so that the rotating plate returns to a position flush with the rotating arm and stops. Finally, under the driving action of the driving mechanism, the rotating arm and the rotating plate are driven to rotate synchronously to drive the raw material clamped by the clamping claw to be conveyed to the clamping assembly, until the raw material is conveyed to the clamping assembly and then inserted into the interior of the clamping assembly under the pushing action of the pushing mechanism, thereby realizing the conveying of the raw material; During this process, it is possible to determine whether the outside of the raw material is damaged, so that the raw materials that are obviously damaged on the outside and cause unstable clamping can be guided to fall and collected, and when the damaged raw material falls, it is possible to continue moving to clamp the next raw material without switching, which is beneficial to improving the smoothness of the equipment operation and the efficiency of clamping and conveying the raw materials.

[0007] Preferably, the falling material collection assembly comprises: An arc-shaped rail, fixed to the top of the lowest end of the guide plate, the end of the arc-shaped rail being connected to the end track of the guide plate; A recovery box is fixed to the bottom of the lowest end of the guide plate, the recovery box is fixedly connected to the bottom support of the oscillation cylinder through a second support plate, and the top of the recovery box is connected to the recovery opening opened on the side wall of the arc rail; A blocking plate is rotatably mounted on the edge of the recovery opening, a torsion spring is sleeved on the outer side of the rotation axis of the blocking plate, and two ends of the torsion spring are respectively fixedly connected to the recovery opening and the blocking plate; The clamp drives the raw material to move through the arc track. First, the clamp drives the raw material to push the blocking plate to flip, so that the blocking plate makes way for the clamp after flipping, until the clamp drives the raw material through the blocking plate, the blocking plate is reset under the torsional force of the torsion spring, and the clamp drives the raw material to continue to move through the arc track. If the surface of the raw material is damaged, the clamp's clamping of the raw material is unstable, causing the raw material to fall during the process of passing through the arc track. The fallen raw material moves toward the recovery opening along the trajectory of the arc track under the limitation of the trajectory of the arc track until it falls through the recovery opening to the inside of the recovery box for recovery. In this way, if the raw material falls during the raw material transportation process, the fallen raw material can be guided so that the raw material can be recovered along the trajectory, which is beneficial to avoid damage to the equipment caused by the raw material during the falling process, thereby helping to improve the safety during the raw material transportation process.

[0008] Preferably, it also includes: A vibration plate is slidably mounted inside the arc-shaped rail, and the lower side of the vibration plate is arranged in a wave shape; A plurality of springs are arranged in an array along the track of the arc track, one end of each spring is fixedly connected to the vibration plate, and the other end of each spring is fixedly connected to the inner wall of the arc track; When the clamp drives the raw material through the inside of the arc track, the edge of the clamp squeezes the vibration plate, and the vibration plate compresses the spring, causing the spring to compress and generate elastic force. Until the clamp moves to the corrugated depression of the vibration plate, the vibration plate loses the push and squeeze of the clamp, and impacts the clamp under the action of the elastic force of the spring, thereby vibrating and slapping the clamp. When the clamp's grip on the raw material is unstable, the raw material can be promoted to fall, which is beneficial to avoid the situation where the raw material is not dropped and collected inside the arc track, but falls after moving out of the arc track, causing safety hazards again, which is beneficial to improve the accuracy of collecting damaged raw materials.

[0009] Preferably, crack detectors are fixedly installed inside the clamping jaws; The crack detector can detect surface cracks on raw materials. For example, the crack detector can use a high-sensitivity sensor, a laser displacement sensor or a photo acquisition sensor to detect cracks on the surface of the raw material through its own sensing or comparison. When cracks are detected on the surface of the raw material, the clamp is controlled to loosen the clamp on the raw material so that the raw material can be recovered as damaged raw material. On the one hand, it helps to avoid the situation where cracks in the raw material collapse during the process of being transported to the clamping assembly for processing, causing fragments to scatter and pose a safety hazard. On the other hand, it helps to avoid the formation of waste materials during the processing of cracked raw materials, increase the scrap rate, and thus affect the processing efficiency.

[0010] In a second aspect, a control method for a CNC lathe with swing arm feeding is provided, which is applicable to a CNC lathe with swing arm feeding described in the claims, wherein a control unit is installed on the top of the processing table, a pressure sensor is fixed on the top of the blocking plate, an angle detector for detecting the angle between the rotating plate and the rotating arm is installed on the side wall of the rotating plate, the control unit includes a user end, and the control method includes the following steps: A1. The control unit obtains the swing arm angle information from the swing arm assembly, wherein the swing arm angle information includes the clamping angle information α1; A2. The control unit generates arm swing state information according to the arm swing angle information, wherein the arm swing state information includes vertical state information and other state information; A3. When the swing arm state information is vertical state information, the control unit obtains pressure state information from the pressure sensor, and the pressure state information includes pressure information and no-pressure information; A4. The control unit selects target control information according to the pressure state information and the vertical state information; A5. The control unit sends the target control information to the swing arm assembly; An angle detector for detecting the included angle between the rotating plate and the rotating arm is installed on the rotating plate in the swing arm assembly. The angle detector detects the included angle between the rotating plate and the rotating arm to form clamping angle information α1. The swing arm angle information includes the clamping angle information α1. The angle detector sends the swing arm angle information to the control unit so that the control unit obtains the swing arm angle information. The control unit divides the position state of the rotating plate into a vertical state and other states according to the swing arm angle information, thereby generating corresponding vertical state information and other state information. For example, according to the angle at which the rotating plate drives the clamping claw to move out of the arc rail, when the swing arm angle information is this angle, the control unit generates vertical state information, and the swing arm state information is the vertical state information at this time; at other angles, the control unit generates other state information, and the swing arm state information is the other state information at this time; When the swing arm state information is the vertical state information, the pressure sensor generates corresponding pressure state information according to itself within a specified time period. For example, within the time period starting from when the rotating plate drives the clamping claw to enter the interior of the arc track until the rotating plate drives the clamping claw to move out of the interior of the arc track, if the pressure sensor is pressurized, it is in a pressurized state and generates corresponding pressurized information. At this time, the pressure state information is pressurized information. If the pressure sensor is not pressurized, it is in a non-pressurized state and generates corresponding non-pressurized information. At this time, the pressure state information is non-pressurized information. The pressure sensor sends the pressure state information to the control unit, so that the control unit obtains the pressure state information of the pressure sensor. The control unit selects target control information according to the pressure state information and the vertical state information, so as to correspondingly control the clamping jaw to drive the raw material to move toward the clamping assembly for raw material transportation or control another clamping jaw to re-clamp the raw material.

[0011] Preferably, the step A2 comprises: The control unit obtains the switching angle information α0 from the user terminal; Substituting the clamping angle information α1 and the switching angle information α0 into the judgment formula α1=α0, when the judgment formula is met, the control unit generates vertical state information, and when the judgment formula is not met, the control unit generates other state information; The operator inputs the switching angle information α0 from the user end of the control unit. The switching angle information α0 is the angle when the clamp drives the material to rotate and move out of the curved track. For example, when the clamp drives the material to move out of the curved track, the angle between the rotating arm and the rotating plate is 90 degrees, then the switching angle information α0=90°, and the control unit brings the switching angle information α0=90° and the clamping angle information α1 into α1=α0=90°. When the judgment formula is met, the control unit generates vertical state information. When the judgment formula is not met, the control unit generates the remaining state information to realize the judgment of the swing arm state information.

[0012] Preferably, the A4 step specifically includes: When the pressure state information is the no-pressure information, the control unit selects the feeding control information as the target control information according to the no-pressure information and the vertical state information, and the feeding control information is used to control the swing arm assembly to feed the raw material to the clamping assembly; When the pressure state information is the pressure information, the control unit selects re-clamping control information as target control information according to the pressure information and the vertical state information, and the re-clamping control information is used to control the swing arm assembly to re-clamp the raw material; When the pressure state information is the pressure-free information, the control unit obtains the pressure-free information, and selects the feeding control information as the target control information according to the pressure-free information and the vertical state information. The feeding control information controls the driving mechanism to start again to drive the rotating rod to rotate, and at the same time controls the flip adjustment mechanism to slowly stop rotating and reversely drive the rotating plate to rotate back toward the rotating arm, so that the rotating plate returns to a position flush with the rotating arm and stops. Finally, under the driving action of the driving mechanism, the rotating arm and the rotating plate are driven to rotate synchronously to drive the raw material clamped by the clamping claw to be conveyed to the clamping assembly, until the raw material is conveyed to the clamping assembly, and then the pushing mechanism is controlled to start, and the pushing mechanism pushes the raw material to be inserted into the interior of the clamping assembly to realize the conveying of the raw material. When the pressure state information is pressure information, the control unit obtains the pressure information, and selects the re-clamping control information as the target control information according to the pressure information and the vertical state information. After the clamping jaw passes through the falling material collection assembly, the re-clamping control information controls the flip adjustment mechanism to continue to drive the rotating plate to rotate, and the rotating plate drives the other clamping jaw to flip after the rotation, and in the process of the rotation of the rotating plate, the control pushing mechanism starts again to push the rotating rod to drive the clamping jaw to move away from the guide plate until the rotating plate flips to a position flush with the rotating arm, that is, the other clamping jaw flips to a position aligned with the raw material at the bottom of the guide plate, and then controls the pushing mechanism to start again to drive the rotating rod to move toward the guide plate, so that the other clamping jaw clamps the raw material and transports the raw material again.

[0013] Preferably, it also includes: When the pressure state information is the no-pressure information, the control unit acquires the raw material state information from the crack detector, the raw material state information including crack information and no-crack information; When the raw material state information is crack information, the control unit generates collection control information according to the crack information and the pressure-free information, and the collection control information is used to control the swing arm assembly to release the clamping of the raw material; The control unit sends the collection control information to the swing arm assembly; When the crack detector detects cracks on the surface of the raw material, the crack detector generates crack information. At this time, the raw material status information is crack information, and the crack detector sends the raw material status information to the control unit, so that the control unit obtains the raw material status information from the crack detector as crack information. The control unit generates collection control information based on the crack information and the pressure-free information, and then the control unit sends the collection control information to the swing arm assembly, so that the swing arm assembly starts to loosen the clamp on the raw material, so that the raw material falls after loosening the clamp, and then the other clamp re-clamps the next raw material under control of the left and right.

[0014] Preferably, it also includes: The control unit obtains standard clamping information and detection angle information α2 from the user end; The control unit obtains the clamping angle information α3 from the angle detector; The control unit substitutes the detection angle information α2 and the clamping angle information α3 into the judgment formula α2=α3, and if the judgment formula is met, the control unit adjusts the clamping force of the clamping jaw according to the standard clamping information; The operator inputs standard clamping information and detection angle information α2 from the user end. The standard clamping information is the clamping position and strength of the jaws when clamping the standard non-destructive raw material to maintain stable clamping of the raw material. The detection angle information α2 is the angle between the rotating arm and the rotating plate after the jaws drive the raw material to move through the blocking plate. The angle detector detects the angle between the rotating arm and the rotating plate in real time to obtain the clamping angle information α3, and then sends the clamping angle information α3 to the control unit. After the control unit obtains the clamping angle information α3, it substitutes the clamping angle information α3 and the detection angle information α2 into the judgment formula α2=α3. If the judgment formula is met, the control unit adjusts the clamping strength of the jaws according to the standard clamping information, so that the jaws are adjusted to the clamping position and strength when they can clamp the standard non-destructive raw material. At this time, if the surface of the clamped raw material is damaged, the clamping of the clamped raw material is unstable, causing the clamped damaged raw material to fall, thereby realizing the screening of damaged raw materials.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention screens defective raw materials through the setting of the falling material collection component. On the one hand, by screening the defective raw materials, they are allowed to fall and be collected within the range of the falling material collection component, which helps to avoid the raw materials from falling and causing damage to the equipment during the clamping and moving process, and helps to improve the safety of the equipment during operation. On the other hand, by screening and collecting the defective raw materials, it helps to avoid the defective raw materials from being transported to the clamping component for processing, and finally generating poor products that affect the processing efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 4 It is a schematic structural diagram of the swing arm assembly of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0021] Figure 6 It is a schematic diagram of the clamping jaw structure of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the arc rail of the present invention.

[0023] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0024] In the figure: 1. processing table; 2. clamping assembly; 3. tool assembly; 4. oscillation cylinder; 5. guide plate; 6. first support plate; 7. rotating rod; 8. rotating arm; 9. rotating plate; 10. motor; 1001. first gear; 1002. second gear; 1003. rotating shaft; 11. clamping claw; 12. connecting rod; 13. arc rail; 14. vibration plate; 15. spring; 16. recovery box; 1601. second support plate; 17. support rod; 18. blocking plate; 19. recovery opening; 20. crack detector. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0026] like Figures 2 to 8 The CNC lathe with swing arm feeding shown in the figure comprises a processing table 1, on the top of which a clamping assembly 2 and a tool assembly 3 that cooperate with each other are installed, and further comprises: The oscillating cylinder 4 is fixed to one side of the processing table 1, and a guide plate 5 is fixedly connected to the outlet of the oscillating cylinder 4 to guide and transport the raw materials falling from the oscillating cylinder 4; The swing arm assembly is fixed to the top of the processing table 1 through the first support plate 6, and is used to clamp and transfer the raw material transmitted by the guide plate 5 to the clamping assembly 2 for clamping and processing; A connecting rod 12, fixedly supported and connected between the guide plate 5 and the first support plate 6; The falling material collection assembly is fixed to the top of the lowest end of the guide plate 5. The swing arm assembly clamps the raw materials through the inside of the falling material collection assembly to recover the raw materials whose surface is damaged and the clamping is unstable and falls; It should be noted that the clamping assembly 2 is a device for positioning and clamping the raw material and driving the raw material to rotate. For example, the clamping assembly 2 is a three-jaw chuck, which is an existing mature device and will not be described in detail here. It should be noted that the tool assembly 3 includes various tools for processing the raw material, which are existing mature equipment and will not be described in detail here; When using the swing arm to transport raw materials to the CNC lathe, the feeding process can be carried out smoothly if the raw materials are intact. However, if the raw materials are damaged, on the one hand, the raw materials may fall off during the feeding process, and the raw materials that fall off during the transportation process may fall and damage the equipment. On the other hand, when the damaged raw materials are transported to the CNC lathe for processing, the scrap rate in the processing process will increase, affecting the processing efficiency of the CNC lathe. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the staff places the raw material inside the oscillating cylinder 4. The raw material falls down along the guide plate 5 in sequence under the action of the oscillating cylinder 4. When the raw material falls to the bottom of the guide plate 5, it is intercepted and stopped by the edge of the guide plate 5. The bottom of the guide plate 5 is provided with a notch. At this time, when the clamping end of the swing arm assembly moves to the notch position at the bottom of the guide plate 5, the raw material can be clamped through the notch, so that the swing arm assembly drives the raw material to move toward the clamping assembly 2 by clamping, until the raw material is inserted into the inside of the clamping assembly 2. The clamping assembly can clamp the raw material and drive the raw material to rotate, and then the tool assembly 3 is controlled to move toward the raw material clamped by the clamping assembly 2, and the raw material is turned to realize automatic feeding processing of the raw material; In the process of the swing arm assembly clamping and moving the raw material, the swing arm assembly drives the raw material to pass through the falling material collection assembly. Within the range of the falling material collection assembly, if the raw material is damaged on the outside, and there are grooves and unevenness on the outside of the raw material, the swing arm assembly is controlled to keep the clamping position of the raw material unchanged. Therefore, when the raw material is damaged on the outside and has grooves and unevenness, there is no fulcrum when the swing arm assembly clamps the raw material, which causes the raw material to fall due to unstable clamping. At this time, the fallen raw material is collected along the falling material collection assembly. By controlling the clamping force of the swing arm assembly, the swing arm assembly is kept The clamping force is maintained at a level that can stably clamp the intact raw materials. At this time, the raw materials with grooves on the surface will fall due to unstable clamping, thereby screening the defective raw materials. On the one hand, by screening the defective raw materials and making them fall and be collected within the range of the falling material collection component, it is beneficial to avoid the raw materials falling during the clamping movement and causing damage to the equipment, which is beneficial to improving the safety of the equipment during operation. On the other hand, by screening and collecting the defective raw materials, it is beneficial to avoid the defective raw materials being transported to the clamping component for processing, and finally generating poor products that affect the processing efficiency of the equipment.

[0027] As an optional embodiment, the swing arm assembly includes: A rotating rod 7, one end of which is supported by a bracket, the rotating rod 7 is rotatably connected to the bracket, and the bracket is slidably mounted on the top of the first support plate 6; A driving mechanism, mounted on the top of the first supporting plate 6, for driving the rotating rod 7 to rotate; A pushing mechanism, mounted on the top of the first supporting plate 6, for pushing the rotating rod 7 to move; A rotating arm 8 is detachably fixed to the end of the rotating rod 7, and a rotating plate 9 is mounted on the side wall of the rotating arm 8 through a flip adjustment mechanism; Two clamping jaws 11 are symmetrically fixedly mounted on both ends of the rotating plate 9, and the clamping jaws 11 are used to clamp the raw material; When it is necessary to clamp the material, the pushing mechanism pushes the rotating rod 7 to move in the direction away from the guide plate 5, so that the rotating rod 7 drives the rotating arm 8 to rotate without being hindered by the material on the guide plate 5. The rotating rod 7 drives the rotating arm 8 to rotate in the direction of the guide plate 5 under the driving action of the driving mechanism, until the rotating arm 8 rotates to align with the material at the bottom of the guide plate 5, the driving mechanism stops the rotation driving of the rotating rod 7. At this time, the pushing mechanism starts again to drive the rotating rod 7 to move in the direction close to the guide plate 5, so that the clamping claw 11 is close to the material from the notch to clamp the material. After the clamping claw 11 completes the clamping of the material, the flipping adjustment mechanism drives the rotating plate 9 to rotate, thereby driving the clamping claw 11 to rotate, so that the clamping claw 11 drives the material to pass through the falling material collection assembly. At this time, if the material falls, after the clamping claw 11 passes through the falling material collection assembly, the flipping adjustment mechanism continues to drive the rotating plate 9 to rotate. After the rotating plate 9 rotates, it drives another clamping claw 11 to flip, and during the rotation of the rotating plate 9, the pushing mechanism starts again to push The swiveling rod 7 drives the clamping jaw 11 to move in the direction away from the guide plate 5 until the swiveling plate 9 is flipped to a position flush with the swiveling arm 8, that is, the other clamping jaw 11 is flipped to a position aligned with the raw material at the bottom of the guide plate 5, and the pushing mechanism is started again to drive the swiveling rod 7 to move in the direction of the guide plate 5, so that the other clamping jaw 11 clamps the raw material and conveys the raw material again until the conveyed raw material is intact and no longer falls at the position of the falling material collection assembly. Subsequently, after the clamping jaw 11 drives the raw material to pass through the falling material collection assembly, the driving mechanism is started again to drive the swiveling rod 7 to rotate, and at the same time, the flipping adjustment mechanism slowly stops rotating and drives the swiveling plate 9 to rotate back to the swiveling arm 8, so that the swiveling plate 9 returns to a position flush with the swiveling arm 8 and stops. Finally, under the driving action of the driving mechanism, the swiveling arm 8 and the swiveling plate 9 are driven to rotate synchronously to drive the raw material clamped by the clamping jaw 11 to be conveyed to the clamping assembly 2, until the raw material is conveyed to the clamping assembly 2 and then inserted into the interior of the clamping assembly 2 under the pushing action of the pushing mechanism, so as to realize the conveying of the raw material; During this process, it is possible to determine whether the outside of the raw material is damaged, so that the raw materials that are obviously damaged on the outside and cause unstable clamping can be guided to fall and collected, and when the damaged raw material falls, it is possible to continue moving to clamp the next raw material without switching, which is beneficial to improving the smoothness of the equipment operation and the efficiency of clamping and conveying the raw materials.

[0028] As an optional embodiment, the driving mechanism includes a first driving motor, and the output shaft of the first driving motor drives the rotating rod 7 to rotate through a gear set; As an optional embodiment, the pushing mechanism includes a second driving motor, the output shaft of the second driving motor is fixed with a first synchronous wheel, the end of the rotating rod 7 is fixed with a moving seat, the edge of the moving seat is fixed with a rack, a meshing gear meshing with the rack is rotatably mounted on the first support plate 6, the meshing gear is coaxially fixed with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous transmission belt; As an optional embodiment, the flip adjustment mechanism includes: The motor 10 is fixed on the side wall of the rotating arm 8, and the output shaft of the motor 10 is fixed with a first gear 1001; The second gear 1002 is rotatably mounted on the side wall of the rotating arm 8, and the second gear 1002 is meshed with the first gear 1001; The rotating shaft 1003 is fixedly connected to the side wall of the rotating plate 9 to drive the rotating plate 9 to rotate. The rotating shaft 1003 is coaxially fixedly connected to the second gear 1002; As an optional embodiment, it further includes a support rod 17, which is fixed to the side wall of the first support plate 6 and is used to support the rotating arm 8 flipped to the clamping position; As an optional embodiment, the falling material collection assembly includes: The arc rail 13 is fixed to the top of the lowest end of the guide plate 5, and the end of the arc rail 13 is connected to the end track of the guide plate 5; The recovery box 16 is fixed to the bottom of the lowest end of the guide plate 5. The recovery box 16 is fixedly connected to the bottom support of the oscillation cylinder 4 through the second support plate 1601. The top of the recovery box 16 is connected to the recovery opening 19 opened on the side wall of the arc rail 13. The blocking plate 18 is rotatably mounted on the edge of the recovery opening 19. A torsion spring is sleeved on the outer side of the rotation axis of the blocking plate 18. The two ends of the torsion spring are fixedly connected to the recovery opening 19 and the blocking plate 18 respectively. The clamping jaw 11 drives the raw material to move through the arc track 13. First, the clamping jaw 11 drives the raw material to push the blocking plate 18 to flip, so that the blocking plate 18 flips and gives way to the clamping jaw 11, until the clamping jaw 11 drives the raw material to pass through the blocking plate 18, and the blocking plate 18 is reset under the torsional force of the torsion spring, and the clamping jaw 11 drives the raw material to continue to move through the arc track 13. If the surface of the raw material is damaged, the clamping jaw 11 of the raw material is unstable, so that the raw material falls during the process of passing through the arc track 13. The fallen raw material moves toward the recovery opening 19 along the trajectory of the arc track 13 under the limitation of the trajectory of the arc track 13, until it falls through the recovery opening 19 to the inside of the recovery box 16 for recovery. Therefore, if the raw material falls during the raw material transportation process, the fallen raw material can be guided so that the raw material can be recovered along the trajectory, which is beneficial to avoid the situation where the raw material causes damage to the equipment during the falling process, thereby helping to improve the safety during the raw material transportation process.

[0029] As an optional embodiment, it also includes: The vibration plate 14 is slidably mounted inside the arc-shaped rail 13, and the lower side of the vibration plate 14 is arranged in a wave shape; A plurality of springs 15 are arranged in an array along the track of the arc track 13, one end of the spring 15 is fixedly connected to the vibration plate 14, and the other end of the spring 15 is fixedly connected to the inner wall of the arc track 13; When the jaws 11 drive the raw materials through the inside of the arc track 13, the edge of the jaws 11 squeezes the vibration plate 14, and the vibration plate 14 compresses the spring 15, so that the spring 15 is compressed to generate elastic force, until the jaws 11 move to the waveform depression of the vibration plate 14, and the vibration plate 14 loses the push and squeeze of the jaws 11, and impacts the jaws 11 under the elastic force of the spring 15, thereby vibrating and slapping the jaws 11, so that when the jaws 11 are unstable in clamping the raw materials, it can promote the falling of the raw materials, which is conducive to avoiding the situation that the raw materials are not dropped and collected inside the arc track 13, but fall after moving out of the arc track 13 to cause safety hazards again, which is conducive to improving the accuracy of collecting damaged raw materials.

[0030] As an optional embodiment, a crack detector 20 is fixedly installed inside the clamping jaws 11; The crack detector 20 can detect surface cracks on the raw material. For example, the crack detector 20 can use a high-sensitivity sensor, a laser displacement sensor or a photo acquisition sensor to detect cracks on the surface of the raw material through its own sensing or comparison. When cracks are detected on the surface of the raw material, the clamping jaws 11 are controlled to loosen the clamping of the raw material so that the raw material can be recovered as damaged raw material. On the one hand, it is helpful to avoid the situation where the cracked raw material is transported to the clamping assembly 2 for processing, and the cracks in the raw material collapse, causing the fragments to scatter and form a safety hazard. On the other hand, it is helpful to avoid the formation of waste materials during the processing of cracked raw materials, increase the scrap rate, and thus affect the processing efficiency.

[0031] like Figure 1 A control method for a CNC lathe with swing arm feeding is shown, a control unit is installed on the top of the processing table 1, a pressure sensor is fixed on the top of the blocking plate 18, an angle detector for detecting the angle between the rotating plate 9 and the rotating arm 8 is installed on the side wall of the rotating plate 9, the control unit includes a user end, and the control method includes the following steps: A1. The control unit obtains the swing arm angle information from the swing arm assembly, where the swing arm angle information includes the clamping angle information α1; A2. The control unit generates arm swing state information according to the arm swing angle information, where the arm swing state information includes vertical state information and other state information; A3. When the swing arm state information is vertical state information, the control unit obtains pressure state information from the pressure sensor, and the pressure state information includes pressure information and no-pressure information; A4. The control unit selects target control information according to the pressure state information and the vertical state information; A5. The control unit sends the target control information to the swing arm assembly; An angle detector for detecting the included angle between the rotating plate 9 and the rotating arm 8 is installed on the rotating plate 9 in the swing arm assembly. The angle detector detects the included angle between the rotating plate 9 and the rotating arm 8 to form the clamping angle information α1. The swing arm angle information includes the clamping angle information α1. The angle detector sends the swing arm angle information to the control unit so that the control unit obtains the swing arm angle information. The control unit divides the position state of the rotating plate 9 into a vertical state and other states according to the swing arm angle information, thereby generating corresponding vertical state information and other state information. For example, according to the angle at which the rotating plate 9 drives the clamping claw 11 to move out of the arc rail 13, when the swing arm angle information is this angle, the control unit generates vertical state information, and the swing arm state information is the vertical state information at this time; at other angles, the control unit generates other state information, and the swing arm state information is the other state information at this time; When the swing arm state information is the vertical state information, the pressure sensor generates corresponding pressure state information according to itself within a specified time period. For example, within the time period starting from when the rotating plate 9 drives the clamping jaws 11 to enter the interior of the arc-shaped rail 13 and ending when the rotating plate 9 drives the clamping jaws 11 to move out of the interior of the arc-shaped rail 13, if the pressure sensor is pressurized, it is in a pressurized state and generates corresponding pressurized information. At this time, the pressure state information is pressurized information. If the pressure sensor is not pressurized, it is in a non-pressurized state and generates corresponding non-pressurized information. At this time, the pressure state information is non-pressurized information. The pressure sensor sends the pressure state information to the control unit, so that the control unit obtains the pressure state information of the pressure sensor. The control unit selects target control information according to the pressure state information and the vertical state information, so as to correspondingly control the clamping jaw 11 to drive the raw material to move toward the clamping assembly 2 for raw material transportation or control another clamping jaw 11 to re-clamp the raw material.

[0032] As an optional embodiment, step A2 includes: The control unit obtains the switching angle information α0 from the user end; Substitute the clamping angle information α1 and the switching angle information α0 into the judgment formula α1=α0. When the judgment formula is met, the control unit generates vertical state information. When the judgment formula is not met, the control unit generates other state information. The operator inputs the switching angle information α0 from the user end of the control unit. The switching angle information α0 is the angle when the clamp 11 drives the material to rotate and move out of the curved rail 13. For example, when the clamp 11 drives the material to rotate and move out of the curved rail 13, the angle between the rotating arm 8 and the rotating plate 9 is 90 degrees, then the switching angle information α0=90°, the control unit brings the switching angle information α0=90° and the clamping angle information α1 into α1=α0=90°. When the judgment formula is met, the control unit generates vertical state information. When the judgment formula is not met, the control unit generates the remaining state information to realize the judgment of the swing arm state information.

[0033] As an optional embodiment, step A4 specifically includes: When the pressure state information is no-pressure information, the control unit selects the feeding control information as the target control information according to the no-pressure information and the vertical state information, and the feeding control information is used to control the swing arm assembly to feed the raw material to the clamping assembly 2; When the pressure state information is pressure information, the control unit selects the re-clamping control information as the target control information according to the pressure information and the vertical state information, and the re-clamping control information is used to control the swing arm assembly to re-clamp the raw material; When the pressure state information is no-pressure information, the control unit obtains the no-pressure information, and selects the feeding control information as the target control information according to the no-pressure information and the vertical state information. The feeding control information controls the driving mechanism to start again to drive the rotating rod 7 to rotate, and at the same time controls the flip adjustment mechanism to slowly stop rotating and reversely drive the rotating plate 9 to rotate toward the rotating arm 8, so that the rotating plate 9 returns to the position flush with the rotating arm 8 and stops. Finally, under the driving action of the driving mechanism, the rotating arm 8 and the rotating plate 9 are driven to rotate synchronously to drive the raw material clamped by the clamping claw 11 to be conveyed to the clamping assembly 2. After the raw material is conveyed to the clamping assembly 2, the pushing mechanism is controlled to start, and the pushing mechanism pushes the raw material to be inserted into the interior of the clamping assembly 2 to realize the conveying of the raw material. When the pressure state information is pressure information, the control unit obtains the pressure information, and selects the re-clamping control information as the target control information according to the pressure information and the vertical state information. After the clamping jaw 11 passes through the blanking collection assembly, the re-clamping control information controls the flip adjustment mechanism to continue to drive the rotating plate 9 to rotate. After the rotating plate 9 rotates, it drives the other clamping jaw 11 to flip. In the process of rotation of the rotating plate 9, the control pushing mechanism starts again to push the rotating rod 7 to drive the clamping jaw 11 to move away from the guide plate 5 until the rotating plate 9 flips to a position flush with the rotating arm 8, that is, the other clamping jaw 11 flips to a position aligned with the raw material at the bottom of the guide plate 5, and then controls the pushing mechanism to start again to drive the rotating rod 7 to move toward the direction of the guide plate 5, so that the other clamping jaw 11 clamps the raw material and transports the raw material again.

[0034] As an optional embodiment, it also includes: When the pressure state information is no-pressure information, the control unit obtains the raw material state information from the crack detector 20, and the raw material state information includes crack information and no-crack information; When the raw material state information is crack information, the control unit generates collection control information according to the crack information and the pressure-free information, and the collection control information is used to control the swing arm assembly to release the clamping of the raw material; The control unit sends the collected control information to the swing arm assembly; When the pressure state information is no-pressure information, the control unit obtains the no-pressure information, and then controls the crack detector 20 to detect the state of the raw material, so that the crack detector 20 detects and obtains the raw material state information of the raw material; When the crack detector 20 detects cracks on the surface of the raw material, the crack detector 20 generates crack information. At this time, the raw material status information is crack information, and the crack detector 20 sends the raw material status information to the control unit, so that the control unit obtains the raw material status information from the crack detector 20 as crack information, and the control unit generates collection control information according to the crack information and the pressure-free information, and then the control unit sends the collection control information to the swing arm assembly, so that the swing arm assembly starts to release the clamping of the raw material, so that the raw material falls after the clamping is released, and then the other clamp 11 re-clamps the next raw material under control of the left and right.

[0035] As an optional embodiment, it also includes: The control unit obtains standard clamping information and detection angle information α2 from the user end; The control unit obtains the clamping angle information α3 from the angle detector; The control unit substitutes the detection angle information α2 and the clamping angle information α3 into the judgment formula α2=α3. If the judgment formula is met, the control unit adjusts the clamping force of the clamping jaw 11 according to the standard clamping information. The operator inputs standard clamping information and detection angle information α2 from the user end. The standard clamping information is the clamping position and strength of the jaws 11 when clamping the standard non-destructive raw material, so as to maintain stable clamping of the raw material. The detection angle information α2 is the angle between the rotating arm 8 and the rotating plate 9 after the jaws 11 drive the raw material to move through the blocking plate 18. The angle detector detects the angle between the rotating arm 8 and the rotating plate 9 in real time to obtain the clamping angle information α3, and then sends the clamping angle information α3 to the control unit. After the control unit obtains the clamping angle information α3, it substitutes the clamping angle information α3 and the detection angle information α2 into the judgment formula α2=α3. If the judgment formula is met, the control unit adjusts the clamping strength of the jaws 11 according to the standard clamping information, so that the jaws 11 are adjusted to the clamping position and strength when clamping the standard non-destructive raw material. At this time, if the surface of the clamped raw material is damaged, the clamping of the clamped raw material is unstable, causing the clamped damaged raw material to fall, thereby realizing the screening of the damaged raw material.

[0036] The working principle of the present invention is as follows: the staff places the raw material inside the oscillating cylinder 4, and the raw material falls down in sequence along the guide plate 5 under the action of the oscillating cylinder 4. When the raw material falls to the bottom of the guide plate 5, it is intercepted and stopped by the edge of the guide plate 5. The bottom of the guide plate 5 is provided with a notch. At this time, when the clamping end of the swing arm assembly moves to the notch position at the bottom of the guide plate 5, the raw material can be clamped through the notch, so that the swing arm assembly drives the raw material to move toward the clamping assembly 2 by clamping, until the raw material is inserted into the inside of the clamping assembly 2. The clamping assembly can clamp the raw material and drive the raw material to rotate, and then the tool assembly 3 is controlled to move toward the raw material clamped by the clamping assembly 2, and the raw material is turned, thereby realizing automatic feeding and processing of the raw material; In the process of the swing arm assembly clamping and moving the raw material, the swing arm assembly drives the raw material to pass through the falling material collection assembly. Within the range of the falling material collection assembly, if the raw material is damaged on the outside, and there are grooves and unevenness on the outside of the raw material, the swing arm assembly is controlled to keep the clamping position of the raw material unchanged. Therefore, when the raw material is damaged on the outside and has grooves and unevenness, there is no fulcrum when the swing arm assembly clamps the raw material, which causes the raw material to fall due to unstable clamping. At this time, the fallen raw material is collected along the falling material collection assembly. By controlling the clamping force of the swing arm assembly, the swing arm assembly is kept The clamping force is maintained at a level that can stably clamp the intact raw materials. At this time, the raw materials with grooves on the surface will fall due to unstable clamping, thereby screening the defective raw materials. On the one hand, by screening the defective raw materials and making them fall and be collected within the range of the falling material collection component, it is beneficial to avoid the raw materials falling during the clamping movement and causing damage to the equipment, which is beneficial to improving the safety of the equipment during operation. On the other hand, by screening and collecting the defective raw materials, it is beneficial to avoid the defective raw materials being transported to the clamping component for processing, and finally generating poor products that affect the processing efficiency of the equipment.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A CNC lathe with swing arm feeding, comprising a processing table (1), wherein a clamping assembly (2) and a tool assembly (3) which cooperate with each other are mounted on the top of the processing table (1), characterized in that: Also includes: An oscillating cylinder (4) is fixed to one side of the processing table (1); an outlet of the oscillating cylinder (4) is fixedly connected to a guide plate (5) for guiding and transmitting the raw materials falling from the oscillating cylinder (4); a swing arm assembly, fixed to the top of the processing table (1) via a first support plate (6), and used for clamping and transferring the raw material conveyed by the guide plate (5) to the clamping assembly (2) for clamping and processing; A connecting rod (12) fixedly supported and connected between the guide plate (5) and the first support plate (6); The falling material collection assembly is fixed to the top of the lowest end of the guide plate (5), and the swing arm assembly clamps the raw material through the interior of the falling material collection assembly to recover the raw material whose surface is damaged and has fallen due to unstable clamping.

2. A CNC lathe with swing arm feeding according to claim 1, characterized in that: The swing arm assembly comprises: A rotating rod (7), one end of which is supported by a bracket, the rotating rod (7) being rotatably connected to the bracket, and the bracket being slidably mounted on the top of the first supporting plate (6); A driving mechanism, mounted on the top of the first supporting plate (6), and used for driving the rotating rod (7) to rotate; A pushing mechanism, mounted on the top of the first supporting plate (6), and used for pushing the rotating rod (7) to move; A rotating arm (8) is detachably fixed to the end of the rotating rod (7), and a rotating plate (9) is mounted on the side wall of the rotating arm (8) via a flip adjustment mechanism; Two clamping jaws (11) are symmetrically fixedly mounted on the two ends of the rotating plate (9), and the clamping jaws (11) are used to clamp the raw material.

3. A CNC lathe with swing arm feeding according to claim 2, characterized in that: The falling material collection assembly comprises: An arc-shaped rail (13) is fixed to the top of the lowest end of the guide plate (5), and the end of the arc-shaped rail (13) is connected to the end track of the guide plate (5); A recovery box (16) is fixed to the bottom of the lowest end of the guide plate (5), the recovery box (16) is fixedly connected to the bottom support of the oscillation cylinder (4) through a second support plate (1601), and the top of the recovery box (16) is connected to a recovery opening (19) provided on the side wall of the arc-shaped rail (13); A blocking plate (18) is rotatably mounted on the edge of the recovery opening (19); a torsion spring is sleeved on the outside of the rotation axis of the blocking plate (18); and two ends of the torsion spring are respectively fixedly connected to the recovery opening (19) and the blocking plate (18).

4. A CNC lathe with swing arm feeding according to claim 3, characterized in that: Also includes: A vibration plate (14) is slidably mounted inside the arc-shaped rail (13), and the lower side of the vibration plate (14) is arranged in a wave shape; A plurality of springs (15) are arranged in an array along the track of the arc-shaped rail (13); one end of the spring (15) is fixedly connected to the vibration plate (14), and the other end of the spring (15) is fixedly connected to the inner wall of the arc-shaped rail (13).

5. A CNC lathe with swing arm feeding according to claim 4, characterized in that: The clamping jaws (11) are also provided with a crack detector (20) fixedly installed inside.

6. A control method for a CNC lathe with a swing arm feeding, applicable to the CNC lathe with a swing arm feeding as claimed in claim 5, wherein a control unit is installed on the top of the processing table (1), a pressure sensor is fixed on the top of the blocking plate (18), an angle detector for detecting the angle between the rotating plate (9) and the rotating arm (8) is installed on the side wall of the rotating plate (9), and the control unit includes a user end, characterized in that: The control method comprises the following steps: A1. The control unit obtains the swing arm angle information from the swing arm assembly, wherein the swing arm angle information includes the clamping angle information α1; A2. The control unit generates arm swing state information according to the arm swing angle information, wherein the arm swing state information includes vertical state information and other state information; A3. When the swing arm state information is vertical state information, the control unit obtains pressure state information from the pressure sensor, and the pressure state information includes pressure information and no-pressure information; A4. The control unit selects target control information according to the pressure state information and the vertical state information; A5. The control unit sends the target control information to the swing arm assembly.

7. The control method of a CNC lathe with swing arm feeding according to claim 6, characterized in that: The A2 step includes: The control unit obtains the switching angle information α0 from the user terminal; The clamping angle information α1 and the switching angle information α0 are substituted into the judgment formula α1=α0. When the judgment formula is met, the control unit generates vertical state information. When the judgment formula is not met, the control unit generates other state information.

8. The control method of a CNC lathe with swing arm feeding according to claim 6, characterized in that: The A4 step specifically includes: When the pressure state information is the pressure-free information, the control unit selects feeding control information as target control information according to the pressure-free information and the vertical state information, and the feeding control information is used to control the swing arm assembly to feed the raw material to the clamping assembly (2); When the pressure state information is the pressure information, the control unit selects re-clamping control information as target control information according to the pressure information and the vertical state information, and the re-clamping control information is used to control the swing arm assembly to re-clamp the raw material.

9. The control method of a CNC lathe with swing arm feeding according to claim 6, characterized in that: Also includes: When the pressure state information is the no-pressure information, the control unit acquires raw material state information from the crack detector (20), the raw material state information including crack information and no-crack information; When the raw material state information is crack information, the control unit generates collection control information according to the crack information and the pressure-free information, and the collection control information is used to control the swing arm assembly to release the clamping of the raw material; The control unit sends the collection control information to the swing arm assembly.

10. The control method of a CNC lathe with swing arm feeding according to claim 7, characterized in that: Also includes: The control unit obtains standard clamping information and detection angle information α2 from the user end; The control unit obtains the clamping angle information α3 from the angle detector; The control unit substitutes the detection angle information α2 and the clamping angle information α3 into a judgment formula α2=α3, and if the judgment formula is met, the control unit adjusts the clamping force of the clamping jaw (11) according to the standard clamping information.

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