Sheet metal turning device and turning method for stainless steel sheet metal

Abstract

This invention relates to the field of turning equipment technology, and discloses a sheet metal turning device and a turning method for stainless steel sheet metal. The device includes a machine bed, a spindle, guide rails, a feed seat, and a tool post installed within the machine bed. The key feature is that a vibratory feeder, a drive assembly, a clamping fixture, and a tilting assembly are also installed within the machine bed, with the clamping fixture movably mounted on the vibratory feeder. By incorporating the drive assembly, vibratory feeder, clamping fixture, and tilting assembly into the machine bed, this invention allows for rough machining of stainless steel sheet metal workpieces. Subsequently, the drive assembly, clamping fixture, and tilting assembly transfer the workpiece from the spindle and fix it onto the vibratory feeder. Vibration is then used to relieve stress on the workpiece, and finally, the workpiece is transferred and fixed back onto the spindle for finish machining. This roughing, stress-relieving, and finish machining method is suitable for turning stainless steel sheet metal parts, reducing the probability of workpiece deformation and improving product processing quality.

Description

Technical Field

[0001] This invention relates to the field of turning equipment technology, specifically to a sheet metal turning equipment and a turning method for stainless steel sheet metal. Background Technology

[0002] A turning machine tool is a machine tool used for machining rotationally symmetrical workpieces. It primarily achieves cutting by utilizing the rotational motion of the workpiece and the linear or curvilinear motion of the cutting tool. It mainly consists of a bed, spindle, feed support, and tool post. During operation, the spindle rotates, and the feed support controls the movement of the tool post, causing the cutting tool on the tool post to contact the workpiece on the spindle, thus achieving machining. In actual machining, different challenges arise during turning depending on the material.

[0003] For example, attached Figure 2 The stainless steel sheet metal parts described herein are prone to deformation during turning due to their thin walls and poor heat dissipation, which reduces product quality. Existing turning components generally rely solely on cooling to prevent deformation, which is ineffective, and there is a lack of other more efficient and reasonable methods to control workpiece deformation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sheet metal turning device and a turning method for stainless steel sheet metal, which has the advantages of preventing deformation and high processing quality, and solves the problem that stainless steel sheet metal parts with thin-walled sections are prone to deformation during processing in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sheet metal turning device, including a bed, a spindle, a guide rail, a feed seat, and a tool post installed in the bed, and a vibratory feeder, a drive assembly, a fixture, and a tilting assembly installed in the bed. The fixture is movably mounted on the vibratory feeder and is used to clamp and fix the workpiece. The tilting assembly is mounted on the vibratory feeder and is drively connected to the fixture. The tilting assembly is used to drive the fixture to swing. The drive assembly includes a movable seat mounted on the guide rail and is used to drive the vibratory feeder to move toward the spindle. The vibratory feeder is fixedly mounted on the movable seat and is used to vibrate the workpiece to relieve stress.

[0006] During the cutting process, the workpiece is first rough-machined using a roughing tool. After rough machining, the drive assembly and the tilting assembly operate. The drive assembly forces the vibratory feeder to move toward the spindle, and the tilting assembly forces the fixture to tilt toward the workpiece on the spindle. When the fixture moves onto the workpiece, it rotates to clamp and fix the workpiece. Then, the drive assembly and the tilting assembly operate again to control the fixture to reset. The vibratory feeder operates to vibrate the workpiece for a certain period of time to relieve stress. Finally, the drive assembly and the tilting assembly operate again to force the workpiece to move back and be mounted on the spindle. The workpiece is then finished using a finishing tool.

[0007] Preferably, the fixture includes a base plate, a base shaft is fixed to one edge of the base plate, the base shaft is movably mounted on the vibratory feeder through a first bearing seat, a circular groove is formed on the back of the base plate, an assembly groove and a plurality of sliding grooves arranged in a ring array around the assembly groove are formed on the front of the base plate, a plurality of grippers corresponding to the positions of the sliding grooves are also installed on the front of the base plate, and a first motor is fixed in the assembly groove, the first motor being used to drive the movement of the plurality of grippers.

[0008] Preferably, the gripper includes a frame fixed to the front of the substrate. The frame is provided with a main support rod and a secondary support rod of the same length and distributed in parallel. The bottom ends of the main support rod and the secondary support rod are rotatably connected to the frame. The gripper also includes a clamping block. The clamping block and the frame are parallel to the front of the substrate. The clamping block is hinged to the top ends of the main support rod and the secondary support rod. A spring is also connected between the middle of the secondary support rod and the end of the frame. A driven gear is fixed to the bottom end of the main support rod.

[0009] Preferably, the output end of the first motor extends into the circular groove and is fixedly connected to a disk. The surface of the disk has multiple arc-shaped holes arranged in a ring array. A rack is slidably connected in each of the multiple grooves. The rack meshes with a driven gear. A pin is fixed to the side of the rack near the disk. The pin is inserted into the arc-shaped hole.

[0010] Preferably, a push rod is fixed to the end of the base shaft, and the angle between the push rod and the plane of the substrate is set to an acute angle. The flipping assembly includes two support blocks fixed on the vibratory plate. A transmission screw and a guide rod are provided between the two support blocks in parallel. The two ends of the transmission screw are rotatably connected to the two support blocks respectively, and the two ends of the guide rod are fixed to the two support blocks respectively. A nut sleeve is threaded onto the transmission screw, and the nut sleeve is also movably sleeved with the guide rod. A connecting rod is rotatably connected to the end of the push rod away from the base shaft, and the end of the connecting rod away from the push rod is rotatably connected to the nut sleeve. The flipping assembly also includes a second motor fixed on the vibratory plate.

[0011] Preferably, the vibratory feeder includes a base plate and a top plate mounted on the top surface of the base plate. The clamp and the flipping assembly are both mounted on the top plate. A plurality of rubber blocks are fixedly connected between the bottom surface of the base plate and the movable seat. An exciter is fixed at the center of one edge of the top plate.

[0012] Preferably, the drive assembly includes a drive motor fixed to the bed, a drive screw fixed to the output shaft of the drive motor, the drive screw being mounted on the side of the guide rail via a second bearing seat, a nut seat threadedly connected to the drive screw, a movable seat being fixedly connected to the nut seat, and the movable seat being slidably connected to the guide rail.

[0013] Preferably, the clamps are configured in two sets, the transmission screw is configured as a bidirectional screw and has two symmetrically distributed nut sleeves mounted on its surface, the two nut sleeves are respectively connected to the push rods on the two clamps through connecting rods, a vertical shaft is fixed at the center of the top plate, the bottom end of the vertical shaft passes through the bottom plate and is rotatably connected to the bottom plate, a worm gear is fixed at the bottom end of the vertical shaft, a fourth motor is fixed at the bottom of the bottom plate, a worm is fixed at the output shaft of the fourth motor, the worm is mounted at the bottom of the bottom plate through a third bearing seat, and the worm meshes with the worm wheel.

[0014] Preferably, a first magnet is fixedly embedded at the bottom of the top plate, a second magnet is fixedly embedded at the top surface of the bottom plate, a third magnet is fixedly embedded at the back of the substrate, and a fourth magnet is fixedly embedded at the top surface of the top plate. The second magnet corresponds to the position of the first magnet, and the fourth magnet corresponds to the position of the third magnet. Both the second magnet and the fourth magnet are electromagnets.

[0015] The present invention also discloses a turning method for stainless steel sheet metal, which uses the above-mentioned sheet metal turning device.

[0016] Compared with the prior art, the present invention provides a sheet metal turning device and a turning method for stainless steel sheet metal, which has the following beneficial effects:

[0017] 1. This sheet metal turning device and the turning method for stainless steel sheet metal, by setting a drive assembly, a vibratory feeder, a fixture, and a tilting assembly on the machine bed, allows for rough machining of stainless steel sheet metal workpieces. Then, the drive assembly, fixture, and tilting assembly are used to transfer and fix the workpiece on the spindle to the vibratory feeder. Vibration is then used to relieve stress on the workpiece. Finally, the workpiece is transferred and fixed back to the spindle for finish machining. This rough machining, stress relief, and finish machining method is suitable for turning stainless steel sheet metal parts, reduces the probability of workpiece deformation, and helps improve the processing quality of the product.

[0018] 2. This sheet metal turning device and stainless steel sheet metal turning method, by setting the fixtures into two sets, can use a fourth motor to drive the two fixtures to interchange positions, and the flipping component can also control the two fixtures to flip at the same time, which is conducive to realizing dual-station operation. In actual use, the stress relief process of the workpiece can be carried out simultaneously with the roughing and fine machining of the workpiece, thus improving the processing efficiency.

[0019] 3. This sheet metal turning device and stainless steel sheet metal turning method are equipped with a first magnet, a second magnet, a third magnet and a fourth magnet. The first magnet is attracted and fixed to the second magnet, and the third magnet is attracted and fixed to the fourth magnet, so that the base plate and the top plate are firmly fixed, and the fixture and the vibratory plate are tightly fixed. This improves the integrity of the vibratory plate itself and the integrity of the fixture and the vibratory plate, and avoids the vibration effect of the workpiece being affected by the movement of the vibratory plate itself or the movement of the fixture, thereby ensuring the stress relief effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a sheet metal turning device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the stainless steel sheet metal workpiece of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention;

[0023] Figure 4 This is a cross-sectional view of the fuselage of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the vibratory feeder of the present invention;

[0025] Figure 6 This is a schematic diagram of the back structure of the clamp of the present invention;

[0026] Figure 7 This is an exploded view of the mounting structure of the gripper of the present invention;

[0027] Figure 8 This is a schematic diagram of the bottom structure of the vibratory feeder of the present invention;

[0028] Figure 9 This is a schematic diagram of the bottom structure of the top plate of the present invention.

[0029] In the diagram: 1. Bed; 2. Spindle; 3. Guide rail; 4. Feed seat; 5. Tool post; 6. Vibratory feeder; 61. Base plate; 62. Top plate; 63. Rubber block; 64. Vibrator; 65. Vertical shaft; 66. Worm gear; 67. Fourth motor; 68. Worm; 69. Third bearing housing; 7. Drive assembly; 71. Movable seat; 72. Drive motor; 73. Drive screw; 74. Second bearing housing; 75. Nut seat; 8. Fixture; 80. Gripper; 801. Base plate; 802. Base shaft; 803. First bearing housing; 804. Circular groove; 80 5. Assembly slot; 806. Slide groove; 807. First motor; 808. Frame; 809. Main support rod; 810. Secondary support rod; 811. Clamping block; 812. Spring; 813. Driven gear; 814. Disc; 815. Arc hole; 816. Rack; 817. Pin; 818. Push rod; 9. Tilting assembly; 91. Support block; 92. Transmission screw; 93. Guide rod; 94. Nut sleeve; 95. Connecting rod; 96. Second motor; 10. First magnet; 11. Second magnet; 12. Third magnet; 13. Fourth magnet. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a sheet metal turning device and a turning method for stainless steel sheet metal.

[0032] Example 1: Please refer to Figures 1-4 A sheet metal turning device includes a bed 1, a spindle 2, a guide rail 3, a feed seat 4, and a tool post 5 installed inside the bed 1. The bed 1 also houses a vibratory feeder 6, a drive assembly 7, a clamp 8, and a tilting assembly 9. The clamp 8 is movably mounted on the vibratory feeder 6 and is used to clamp and fix the workpiece. The tilting assembly 9 is mounted on the vibratory feeder 6 and is drively connected to the clamp 8. The tilting assembly 9 is used to drive the clamp 8 to swing. The drive assembly 7 includes a movable seat 71 mounted on the guide rail 3 and is used to drive the vibratory feeder 6 to move towards the spindle 2. The vibratory feeder 6 is fixedly mounted on the movable seat 71. The vibratory feeder 6 is used to vibrate the workpiece to relieve stress.

[0033] During the cutting operation, the workpiece is first roughed using a roughing tool. After roughing, the drive assembly 7 and the tilting assembly 9 operate. The drive assembly 7 forces the vibratory feeder 6 to move toward the spindle 2, and the tilting assembly 9 forces the fixture 8 to tilt toward the workpiece on the spindle 2. When the fixture 8 moves onto the workpiece, it operates to clamp and fix the workpiece. Then, the drive assembly 7 and the tilting assembly 9 operate again to control the fixture 8 to reset. The vibratory feeder 6 operates to vibrate the workpiece for a certain period of time to relieve stress. Finally, the drive assembly 7 and the tilting assembly 9 operate again to force the workpiece to move again and be mounted on the spindle 2. The workpiece is then finished using a finishing tool.

[0034] The workpiece is a stainless steel sheet metal part. The tool holder 5 has multiple installation positions. In actual use, roughing tools and finishing tools are selected according to the requirements and installed on the tool holder 5. A sensor for testing the vibration effect is also fixedly installed at the corner of the vibratory plate 6. The sensor is connected to an external vibration aging device. The vibratory plate 6 is set horizontally.

[0035] In operation, the workpiece is first fixed on the spindle 2. The spindle 2 and feed seat 4 are started, causing the roughing tool to contact the rotating workpiece for rough machining. At the end of the rough machining, the tilting assembly 9 and drive assembly 7 are started. When the tilting assembly 9 operates, it drives the fixture 8 to tilt, so that the fixture 8 is directly facing the workpiece on the spindle 2. When the drive assembly 7 operates, it drives the vibratory feeder 6 to move towards the spindle 2, which in turn moves the fixture 8 towards the spindle 2 until the workpiece is inside the fixture 8. Then, the fixture 8 is started, clamping the workpiece, while the spindle 2 releases its grip on the workpiece. At this point, the workpiece is fixed on the fixture 8. Then, the drive assembly 7 and the tilting assembly 9 are restarted to reset the fixture 8. The workpiece is then fixed on the vibratory feeder 6 by the fixture 8. The vibratory feeder 6 is then started to vibrate the workpiece, thereby relieving its stress. After vibrating for a certain period of time, the vibratory feeder 6 is turned off, and the tilting assembly 9 and the drive assembly 7 are started again to move the workpiece on the fixture 8 back onto the spindle 2. After the spindle 2 clamps the workpiece, the fixture 8 is started to release the workpiece, so that the workpiece is fixed back on the spindle 2. Then, the finishing tool is used for finishing.

[0036] By setting a drive assembly 7, a vibratory feeder 6, a fixture 8, and a tilting assembly 9 on the bed 1, rough machining is first performed when processing stainless steel sheet metal workpieces. Then, the drive assembly 7, fixture 8, and tilting assembly 9 are used to transfer the workpiece on the spindle 2 and fix it on the vibratory feeder 6. Vibration is then used to eliminate the stress on the workpiece. Finally, the workpiece is transferred back to the spindle 2 and fixed for finish machining. This method of rough machining, stress relief, and finish machining can adapt to the turning of stainless steel sheet metal parts, reduce the probability of workpiece deformation, and help improve the processing quality of products.

[0037] Example 2: See Figures 5-7Unlike the above embodiments, the clamp 8 includes a base plate 801. A base shaft 802 is fixed to one edge of the base plate 801. The base shaft 802 is movably mounted on the vibratory feeder 6 via a first bearing seat 803. A circular groove 804 is formed on the back of the base plate 801. An assembly groove 805 and multiple sliding grooves 806 arranged in a ring array around the assembly groove 805 are formed on the front of the base plate 801. Multiple grippers 80 corresponding to the positions of the sliding grooves 806 are also installed on the front of the base plate 801. A first motor 807 is fixed in the assembly groove 805. The first motor 807 is used to drive the movement of multiple sets of grippers 80. Each gripper 80 includes a frame 808 fixed to the front of the base plate 801. The frame 808 is provided with main support rods 809 and secondary support rods 810 of the same length and arranged in parallel. The bottom end of the main support rod 809 and the secondary support rod... The bottom end of 810 is rotatably connected to the frame 808. The gripper 80 also includes a clamping block 811. The clamping block 811 and the frame 808 are parallel to the front of the substrate 801. The clamping block 811 is hinged to the top of the main support rod 809 and the top of the secondary support rod 810. A spring 812 is also connected between the middle of the secondary support rod 810 and the end of the frame 808. A driven gear 813 is fixed at the bottom of the main support rod 809. The output end of the first motor 807 extends into the circular groove 804 and is fixedly connected to a disk 814. The surface of the disk 814 has multiple arc-shaped holes 815 arranged in a ring array. A rack 816 is slidably connected in multiple sliding grooves 806. The rack 816 meshes with the driven gear 813. A pin 817 is fixed on the side of the rack 816 near the disk 814. The pin 817 is inserted into the arc-shaped hole 815.

[0038] The slide 806 is connected to the circular groove 804. In the initial state, the substrate 801 is horizontal and attached to the vibratory plate 6. The front side of the substrate 801 is provided with multiple evenly distributed screw holes. The distribution direction of the screw holes is consistent with the direction of the slide 806. The frame 808 is fixed by bolts in the screw holes. When the bolts match different screw holes, the position of the frame 808 can be adjusted, and then the position of the gripper 80 can be adjusted to adapt to workpieces of different diameters.

[0039] In use, when the clamp 8 moves toward the workpiece, the workpiece is located inside the clamp 8. At this time, the first motor 807 is started. When the first motor 807 runs, it drives the disc 814 to rotate. When the disc 814 rotates, it pushes the pin 817 through the arc hole 815, so that the pin 817 and the rack 816 slide along the slide groove 806. When the rack 816 moves, it drives the driven gear 813 to rotate. When the driven gear 813 rotates, it drives the main support rod 809 to swing. When the main support rod 809 swings, it drives the clamping block 811 to move, and causes the secondary support rod 810 to swing synchronously. The swing amplitude of the secondary support rod 810 is the same as that of the main support rod 809. When the secondary support rod 810 swings, it also stretches the spring 812. The clamping block 811 remains parallel to the surface of the substrate 801 and gradually moves closer to the substrate 801. When multiple clamping blocks 811 move at the same time, the workpiece can be clamped and fixed.

[0040] By setting the fixture 8, when the first motor 807 is started, it can drive multiple clamping blocks 811 to move synchronously, thereby clamping and fixing the workpiece, which is beneficial for transferring the workpiece and keeping the workpiece stable during vibration stress relief, thus improving the stress relief effect. Since the clamping blocks 811 can remain parallel to the surface of the clamping plate 801 during the movement, they can adapt to workpieces of different thicknesses and have high applicability.

[0041] Example 3, see Figure 5 Unlike the above embodiments, the base shaft 802 has a push rod 818 fixed at its end, and the angle between the push rod 818 and the plane of the base plate 801 is set to an acute angle. The flipping assembly 9 includes two support blocks 91 fixed on the vibratory plate 6. A transmission screw 92 and a guide rod 93 are provided between the two support blocks 91 in parallel. The two ends of the transmission screw 92 are rotatably connected to the two support blocks 91 respectively, and the two ends of the guide rod 93 are fixed to the two support blocks 91 respectively. A nut sleeve 94 is threaded onto the transmission screw 92, and the nut sleeve 94 is also movably sleeved with the guide rod 93. The end of the push rod 818 away from the base shaft 802 is rotatably connected to a connecting rod 95, and the end of the connecting rod 95 away from the push rod 818 is rotatably connected to the nut sleeve 94. The flipping assembly 9 also includes a second motor 96 fixed on the vibratory plate 6.

[0042] The transmission screw 92 and guide rod 93 are both perpendicular to the base shaft 802. In use, the second motor 96 is started, which drives the transmission screw 92 to rotate. When the transmission screw 92 rotates, it drives the nut sleeve 94 to move. When the nut sleeve 94 moves, it drives one end of the connecting rod 95 to move. When one end of the connecting rod 95 moves, the other end pulls the push rod 818, which in turn causes the push rod 818 to swing. When the push rod 818 swings, it drives the base shaft 802 to rotate. When the base shaft 802 rotates, it causes the base plate 801 to flip. Similarly, when the second motor 96 drives the transmission screw 92 to rotate in the opposite direction, it causes the base plate 801 to flip in the opposite direction, so that the base plate 801 is reset.

[0043] By setting the flipping component 9, when the second motor 96 is started, it can drive the base plate 801 to flip, so that the angle of the clamp 8 changes, making it easier for the clamp 8 to clamp and fix the workpiece on the spindle 2, and then transfer and fix the workpiece on the spindle 2 onto the vibratory plate 6.

[0044] Example 4, see Figure 5 , Figure 8 and Figure 9 Unlike the above embodiments, the vibratory plate 6 includes a base plate 61 and a top plate 62 installed on the top surface of the base plate 61. The clamp 8 and the flipping assembly 9 are both installed on the top plate 62. A plurality of rubber blocks 63 are fixedly connected between the bottom surface of the base plate 61 and the movable seat 71. A vibrator 64 is fixed at the center of one side edge of the top plate 62.

[0045] The top plate 62 is rectangular. When the vibrator 64 is running, it drives the bottom plate 61 and the top plate 62 to vibrate. The amplitude of the top plate 62 gradually increases near both ends. The clamp 8 is fixed at the part with larger amplitude. When the top plate 62 vibrates, it can drive the workpiece on the clamp 8 to vibrate. After a period of time, the stress on the workpiece can be eliminated, and the probability of workpiece deformation can be reduced.

[0046] Example 5, see Figures 1-4 Unlike the above embodiments, the drive assembly 7 includes a drive motor 72 fixed on the bed 1. The output shaft of the drive motor 72 is fixed with a drive screw 73. The drive screw 73 is mounted on the side of the guide rail 3 through a second bearing seat 74. A nut seat 75 is also threaded onto the drive screw 73. The movable seat 71 is fixedly connected to the nut seat 75 and is also slidably connected to the guide rail 3.

[0047] The drive screw 73 is parallel to the guide rail 3. When in use, the drive motor 72 is started. When the drive motor 72 is running, it drives the drive screw 73 to rotate. The drive screw 73 drives the nut seat 75 and the movable seat 71 to slide along the guide rail 3, thereby driving the vibratory plate 6 to move towards the main shaft 2.

[0048] Example 6, see Figure 5 and Figure 8Unlike the above embodiments, the clamps 8 are configured in two sets, the transmission screw 92 is configured as a bidirectional screw and has two symmetrically distributed nut sleeves 94 mounted on its surface. The two nut sleeves 94 are respectively connected to the push rods 818 on the two clamps 8 via connecting rods 95. A vertical shaft 65 is fixed at the center of the top plate 62. The bottom end of the vertical shaft 65 passes through the bottom plate 61 and is rotatably connected to the bottom plate 61. A worm gear 66 is fixed at the bottom end of the vertical shaft 65. A fourth motor 67 is fixed at the bottom of the bottom plate 61. A worm 68 is fixed on the output shaft of the fourth motor 67. The worm 68 is mounted on the bottom of the bottom plate 61 via a third bearing seat 69 and meshes with the worm gear 66.

[0049] The transmission screw 92 is provided with two sets of symmetrically distributed threads with opposite directions of rotation. The two nut sleeves 94 are matched with the two sets of threads respectively. When a workpiece is clamped on one of the clamps 8 on the vibratory plate 6, the other clamp 8 is selected for the next workpiece clamping. At this time, the fourth motor 67 is started. After the fourth motor 67 runs, it drives the worm 68 to rotate. After the worm 68 rotates, it drives the worm wheel 66 to rotate. After the worm wheel 66 rotates, it drives the vertical shaft 65 and the top plate 62 to rotate. When the top plate 62 rotates 180 degrees, the positions of the two clamps 8 can be interchanged. When the flipping component 9 runs, the rotation of the transmission screw 92 will also drive the two nut sleeves 94 to move at the same time, thereby driving the two clamps 8 to flip at the same time, realizing the effect of dual-station operation.

[0050] By setting the fixtures 8 into two sets, the fourth motor 67 can drive the two fixtures 8 to interchange positions, and the flipping component 9 can also control the two fixtures 8 to flip simultaneously, which is conducive to realizing dual-station operation. In actual use, the stress relief process of the workpiece can be carried out simultaneously with the roughing and fine machining of the workpiece, thus improving the processing efficiency.

[0051] Example 7, see Figures 4-8 Unlike the above embodiments, the top plate 62 has a first magnet 10 fixedly embedded at its bottom, the bottom plate 61 has a second magnet 11 fixedly embedded at its top surface, the base plate 801 has a third magnet 12 fixedly embedded at its back surface, and the top plate 62 has a fourth magnet 13 fixedly embedded at its top surface. The second magnet 11 corresponds to the position of the first magnet 10, and the fourth magnet 13 corresponds to the position of the third magnet 12. Both the second magnet 11 and the fourth magnet 13 are electromagnets.

[0052] In the initial state, the first magnet 10 and the second magnet 11 are attracted and fixed, and the third magnet 12 and the fourth magnet 13 are attracted and fixed, which makes the bottom plate 61 and the top plate 62 tightly fixed, and also makes the clamp 8 and the vibratory plate 6 tightly fixed. This improves the integrity of the vibratory plate 6 itself and the integrity of the clamp 8 and the vibratory plate 6, and avoids the vibration effect of the workpiece being affected by the movement of the vibratory plate 6 itself or the movement of the clamp 8, thereby ensuring the stress relief effect.

[0053] Example 8: A method for machining stainless steel sheet metal, wherein the method uses a sheet metal turning device as described in the above examples.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal turning apparatus, comprising a bed, a spindle, guide rails, a feed seat, and a tool post installed within the bed, characterized in that: The bed also houses a vibratory feeder, a drive assembly, a clamp, and a tilting assembly. The clamp is movably mounted on the vibratory feeder and is used to hold and fix the workpiece. The tilting assembly is mounted on the vibratory feeder and is connected to the clamp in a transmission manner. The tilting assembly is used to drive the clamp to swing. The drive assembly includes a movable seat mounted on a guide rail and is used to drive the vibratory feeder to move toward the spindle. The vibratory feeder is fixedly mounted on the movable seat and is used to vibrate the workpiece to relieve stress. The fixture includes a base plate, a base shaft is fixed to one edge of the base plate, the base shaft is movably mounted on the vibratory feeder through a first bearing seat, a circular groove is opened on the back of the base plate, an assembly groove and multiple sliding grooves distributed in a ring array around the assembly groove are opened on the front of the base plate, and multiple grippers corresponding to the positions of the sliding grooves are also installed on the front of the base plate. A first motor is fixed in the assembly groove, and the first motor is used to drive the movement of multiple sets of grippers. A push rod is fixed to the end of the base shaft. The angle between the push rod and the plane of the base plate is set to an acute angle. The flipping assembly includes two support blocks fixed on the vibratory plate. A transmission screw and a guide rod are arranged in parallel between the two support blocks. The two ends of the transmission screw are rotatably connected to the two support blocks respectively. The two ends of the guide rod are fixed to the two support blocks respectively. A nut sleeve is threaded on the transmission screw. The nut sleeve is also movably sleeved with the guide rod. A connecting rod is rotatably connected to the end of the push rod away from the base shaft. The end of the connecting rod away from the push rod is rotatably connected to the nut sleeve. The flipping assembly also includes a second motor fixed on the vibratory plate. The vibratory plate includes a base plate and a top plate installed on the top surface of the base plate. The clamp and the flipping assembly are both installed on the top plate. Multiple rubber blocks are fixedly connected between the bottom surface of the base plate and the movable seat. An exciter is fixed at the center of one side edge of the top plate. During the cutting process, the workpiece is first rough-machined using a roughing tool. After rough machining, the drive assembly and the tilting assembly operate. The drive assembly forces the vibratory feeder to move toward the spindle, and the tilting assembly forces the fixture to tilt toward the workpiece on the spindle. When the fixture moves onto the workpiece, it rotates to clamp and fix the workpiece. Then, the drive assembly and the tilting assembly operate again to control the fixture to reset. The vibratory feeder operates to vibrate the workpiece for a certain period of time to relieve stress. Finally, the drive assembly and the tilting assembly operate again to force the workpiece to move back and be mounted on the spindle. The workpiece is then finished using a finishing tool.

2. The sheet metal turning device according to claim 1, characterized in that: The gripper includes a frame fixed to the front of the substrate. The frame has a main support rod and a secondary support rod of the same length and distributed in parallel. The bottom ends of the main support rod and the secondary support rod are rotatably connected to the frame. The gripper also includes a clamping block. The clamping block and the frame are parallel to the front of the substrate. The clamping block is hinged to the top ends of the main support rod and the secondary support rod. A spring is also connected between the middle of the secondary support rod and the end of the frame. A driven gear is fixed to the bottom end of the main support rod.

3. The sheet metal turning device according to claim 2, characterized in that: The output end of the first motor extends into the circular groove and is fixedly connected to a disk. The surface of the disk has multiple arc-shaped holes arranged in a ring array. A rack is slidably connected in each of the multiple grooves. The rack meshes with the driven gear. A pin is fixed to the side of the rack near the disk. The pin is inserted into the arc-shaped hole.

4. The sheet metal turning device according to claim 1, characterized in that: The drive assembly includes a drive motor fixed to the bed, a drive screw fixed to the output shaft of the drive motor, the drive screw being mounted on the side of the guide rail via a second bearing seat, a nut seat threadedly connected to the drive screw, a movable seat being fixedly connected to the nut seat, and the movable seat being slidably connected to the guide rail.

5. The sheet metal turning device according to claim 1, characterized in that: The clamps are configured in two sets. The transmission screw is a bidirectional screw with two symmetrically distributed nut sleeves mounted on its surface. The two nut sleeves are respectively connected to push rods on the two clamps via connecting rods. A vertical shaft is fixed at the center of the top plate. The bottom end of the vertical shaft passes through the bottom plate and is rotatably connected to the bottom plate. A worm gear is fixed at the bottom end of the vertical shaft. A fourth motor is fixed at the bottom of the bottom plate. A worm is fixed to the output shaft of the fourth motor. The worm is mounted on the bottom of the bottom plate via a third bearing seat. The worm meshes with the worm wheel.

6. A sheet metal turning device according to claim 5, characterized in that: A first magnet is fixedly embedded at the bottom of the top plate, a second magnet is fixedly embedded at the top surface of the bottom plate, a third magnet is fixedly embedded at the back of the substrate, and a fourth magnet is fixedly embedded at the top surface of the top plate. The second magnet corresponds to the position of the first magnet, and the fourth magnet corresponds to the position of the third magnet. Both the second magnet and the fourth magnet are electromagnets.

7. A method for turning stainless steel sheet metal, characterized in that: The stainless steel sheet metal turning method uses a sheet metal turning device as described in any one of claims 1-6.

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