Numerically-controlled machine tool for turning sheet metal parts

Abstract

The invention relates to the technical field of turning machining, and discloses a numerical control machine tool for turning machining of sheet metal parts, the numerical control machine tool comprises a device body, a control panel, a transmission bin and a sliding cover plate, the control panel is fixedly installed outside the device body, and the transmission bin is fixedly installed inside the device body; the sliding cover plate is slidably mounted outside the transmission bin, a clamping sliding groove is formed in one side of the transmission bin, and a driving mechanism is mounted in the transmission bin. A positioning connecting rod is driven by a driving mechanism to get close to the center of a clamping sliding groove, and when the positioning connecting rod gets close to the center of the sliding groove, a deformation clamping mechanism, a second plate clamping plate and a second plate clamping plate can be driven to synchronously move to clamp and fix a sheet metal part; and when the sheet metal parts are clamped, the deformation clamping mechanism can adapt to the sheet metal parts of different shapes, so that the clamping stability of the sheet metal parts can be remarkably improved, and the subsequent turning precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of turning processing, in particular to a numerical control machine tool used for turning processing of sheet metal parts. Background Art

[0002] Lathe processing is an important part of mechanical processing. During lathe processing, a turning tool is needed to turn the workpiece. Turning processing mainly processes the surface of the workpiece into different shapes.

[0003] Chinese patent CN109175413B discloses a multi-tool holder CNC lathe. By providing multiple independently controlled tool holders, the multiple tool holders can simultaneously perform turning from multiple angles and directions, and can also realize alternating feeding of the multiple tool holders, thereby significantly improving the processing efficiency of the CNC lathe.

[0004] In the above patents and prior art, since the sheet metal parts are relatively thin as a whole and mostly have polygonal structures, it is difficult for traditional clamps to fix polygonal sheet metal parts during turning processing, and traditional clamps may cause deformation of the sheet metal parts when clamping and fixing the bent parts of the sheet metal parts, thereby affecting the turning accuracy and processing quality of the sheet metal parts. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A CNC machine tool for sheet metal turning, comprising a device body, a control panel, a transmission compartment and a sliding cover plate, wherein the control panel is fixedly mounted on the outside of the device body, the transmission compartment is fixedly mounted on the inside of the device body, the sliding cover plate is slidably mounted on the outside of the transmission compartment, a clamping slot is provided on one side of the transmission compartment, a driving mechanism is mounted on the inside of the transmission compartment, and a clamping mechanism and a positioning mechanism are mounted on the driving mechanism;

[0007] The driving mechanism comprises a driving motor and a transmission rotating rod, wherein the motor rotating disk is mounted inside the sliding cover plate, and the transmission rotating rod is rotatably mounted on the inner side wall of the transmission compartment, and the driving motor can drive the transmission rotating rod to rotate inside the sliding cover plate;

[0008] The clamping mechanism comprises a first plate clamping plate and a second plate clamping plate, and the transmission rotating rod can drive the first plate clamping plate and the second plate clamping plate to move closer to each other when rotating, and the first plate clamping plate and the second plate clamping plate can clamp the sheet metal material from the front and rear sides when moving closer to each other;

[0009] The positioning mechanism includes a positioning connecting rod and a deformation clamping mechanism, the deformation clamping mechanism is arranged at one end of the positioning connecting rod, and the positioning connecting rod is movably installed inside the clamping slide groove. When the transmission rotating rod rotates, it can drive the positioning connecting rod along the clamping slide groove to move closer to the center of the transmission bin, so as to drive the deformation clamping mechanism to move synchronously. The inner side of the deformation clamping mechanism can adapt to the shape of the edge of the sheet metal material when it contacts the edge of the sheet metal material, and can clamp the periphery of the sheet metal material.

[0010] Preferably, the driving mechanism includes a driving motor and a transmission rotating rod, the driving motor is fixedly installed inside the transmission bin, the driving end of the driving motor is fixedly connected to the motor turntable, the outside of the transmission rotating rod is fixedly installed with a turntable turntable, the outside of the motor turntable is connected to the external transmission of the turntable turntable through a transmission belt, the outside of the transmission rotating rod is fixedly installed with a spring mounting seat, the two sides of the spring mounting seat are respectively fixedly installed with a first clamping plate spring and a second clamping plate spring, the movable end of the first clamping plate spring is fixedly connected to a first connecting disk screw, the movable end of the second clamping plate spring is fixedly connected to a second connecting disk screw, the outside of the transmission rotating rod is fixedly installed with a first screw block and a second screw block, the first connecting disk screw and the second connecting disk screw are both slidably installed on the outside of the transmission rotating rod, and the outside of the transmission rotating rod is fixedly installed with a turntable block.

[0011] Preferably, the ends of the first connecting plate screw and the second connecting plate screw that are close to each other are respectively connected to the two sides of the spring mounting seat through the first clamping plate spring and the second clamping plate spring, the inner side of the first connecting plate screw is clamped with the outer side of the transmission rotating rod through the first screw clamping block, and the inner side of the second connecting plate screw is clamped with the outer side of the transmission rotating rod through the second screw clamping block.

[0012] Preferably, the two ends of the transmission rotating rod are respectively rotatably installed on the side walls on both sides of the inside of the transmission bin, and the installation order of the outside of the transmission rotating rod is the rotating rod rotating disk, the first connecting disk screw, the first clamping plate spring, the spring mounting seat, the second clamping plate spring, the second connecting disk screw and the rotating disk block, the outside of the first connecting disk screw and the second connecting disk screw are connected to the clamping mechanism, and the outside of the rotating disk block is clamped with the inside of the positioning mechanism.

[0013] Preferably, the clamping mechanism includes a first clamping plate connecting plate and a second clamping plate connecting plate, the first clamping plate connecting plate is threadedly installed on the outside of the first connecting plate screw, the second clamping plate connecting plate is threadedly installed on the outside of the second connecting plate screw, the first clamping plate connecting plate is slidably installed with a first clamping plate connecting rod, the two ends of the first clamping plate connecting rod are respectively fixedly connected with a first connecting rod block and a first sheet material clamp, the second clamping plate connecting plate is slidably installed with a second clamping plate connecting rod, the two ends of the second clamping plate connecting rod are respectively fixedly connected with a second connecting rod block and a second sheet material clamp.

[0014] Preferably, limiting grooves are radially provided on the surfaces of the first splint connecting plate and the second splint connecting plate, and the limiting grooves on the surfaces of the first splint connecting plate and the second splint connecting plate are respectively distributed in a circumference, one end of the first splint connecting rod is clamped in the limiting groove of the first splint connecting plate through the first connecting rod clamping block, the other end of the first splint connecting rod is fixedly connected to the first plate splint through a positioning mechanism, one end of the second splint connecting rod is clamped in the limiting groove of the second splint connecting plate through the second connecting rod clamping block, and the other end of the second connecting rod clamping block is fixedly connected to the second plate splint through the positioning mechanism.

[0015] Preferably, the positioning mechanism includes a positioning turntable and a positioning connecting rod, the positioning turntable is fixedly mounted on the outside of the transmission turntable, a positioning slide groove is provided inside the positioning turntable, a connecting slot is provided inside the positioning turntable, a spring mounting compartment is fixedly mounted inside the connecting slot, a block spring is fixedly mounted inside the spring mounting compartment, a movable end of the block spring is fixedly connected to a positioning block, the positioning connecting rod is movably mounted inside the clamping slide groove, and a deformation clamping mechanism is provided at one end of the positioning connecting rod.

[0016] Preferably, the positioning groove forms a turbine-type structure, one end of the positioning connecting rod passes through the positioning groove and the clamping groove and is connected to the deformation clamping mechanism, and the first clamping plate connecting rod and the second clamping plate connecting rod both pass through the positioning connecting rod and slide with the inside of the positioning connecting rod.

[0017] Preferably, the outside of the transmission rotating rod is clamped with the positioning block inside the positioning rotating disk through the rotating disk clamping block, and when the transmission rotating rod drives the positioning rotating disk to rotate, it can drive the positioning connecting rod to move inside the clamping slide groove.

[0018] Preferably, the deformation clamping mechanism comprises a clamping base, a first-layer deformation transfer block, a second-layer deformation transfer block and a plate positioning block, the clamping base is fixedly mounted on the positioning connecting rod, a base slide groove is provided inside the clamping base, a first-layer deformation transfer groove is provided inside the first-layer deformation transfer block, a second-layer deformation transfer groove is provided inside the second-layer deformation transfer block, a first-layer deformation clamping block is fixedly mounted outside the first-layer deformation transfer block, a second-layer deformation clamping block is fixedly mounted outside the second-layer deformation transfer block, and a positioning block transfer block is fixedly mounted outside the plate positioning block;

[0019] The first-layer deformation transfer block is rotatably installed inside the clamping base through a first-layer deformation clamping block, the second-layer deformation transfer block is rotatably installed inside the first-layer deformation transfer block through a second-layer deformation clamping block, the plate positioning block is rotatably installed inside the second-layer deformation transfer block through a positioning block transfer block, the first-layer deformation transfer block, the second-layer deformation transfer block and the plate positioning block are stacked in layers on one side of the clamping base, and the first-layer deformation transfer block, the second-layer deformation transfer block and the plate positioning block can adjust the angle of each plate positioning block by rotating relative to each other.

[0020] Compared with the prior art, the present invention provides a CNC machine tool for sheet metal turning, which has the following beneficial effects:

[0021] 1. This CNC machine tool used for sheet metal turning processing drives the transmission rotating rod to rotate by driving the motor. When the transmission rotating rod rotates, it can drive the first sheet metal clamp and the second sheet metal clamp to clamp the sheet metal. When the transmission rotating rod rotates, it can also drive the positioning connecting rod to move closer to the center of the clamping slide groove. When the positioning connecting rod moves closer to the center of the slide groove, it can drive the deformation clamping mechanism, the second sheet metal clamp and the second sheet metal clamp to move synchronously to clamp and fix the sheet metal. When clamping the sheet metal, the deformation clamping mechanism can be used to adapt to sheet metals of different shapes, thereby significantly improving the stability of sheet metal clamping, thereby improving the accuracy of subsequent turning.

[0022] 2. This CNC machine tool used for sheet metal turning cannot move after the first sheet metal clamp and the second sheet metal clamp complete the fixation of the sheet metal, while the first connecting plate screw and the second connecting plate screw continue to rotate. When the first connecting plate screw and the second connecting plate screw continue to rotate, they can compress the first clamp spring and the second clamp spring to continue to move toward the direction of the spring mounting seat. The first clamp spring and the second clamp spring increase the fixing force of the first sheet metal clamp and the second sheet metal clamp on the sheet metal, thereby significantly improving the stability during fixation.

[0023] 3. This CNC machine tool used for sheet metal turning processing, during the movement of the deformation clamping mechanism, the first layer deformation rotating block, the second layer deformation rotating block and the plate positioning block rotate relative to each other, and during the rotation of the plate positioning block, it adapts to the shape of the edge of the sheet metal, thereby being able to adapt to sheet metal parts of different shapes. By being able to use the sheet metal edge shape deformation clamping mechanism to clamp the sheet metal parts, sheet metal parts of different shapes can be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a CNC machine tool for sheet metal turning processing according to the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure inside a CNC machine tool for sheet metal turning processing according to the present invention;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of a driving mechanism of a CNC machine tool for sheet metal turning processing according to the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of a positioning mechanism of a CNC machine tool for sheet metal turning processing according to the present invention;

[0028] Figure 5 The structure diagram of the clamping mechanism of a CNC machine tool for sheet metal turning processing of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 6 The structure diagram of the clamping mechanism of a CNC machine tool for sheet metal turning processing of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement at the center A;

[0031] Figure 8 It is a schematic diagram of the internal structure of a positioning turntable of a CNC machine tool for sheet metal turning processing according to the present invention;

[0032] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlargement at the center A;

[0033] Fig.10 It is a three-dimensional structural schematic diagram of a deformation clamping mechanism of a CNC machine tool used for sheet metal turning processing according to the present invention;

[0034] Fig.11 The present invention is a schematic diagram of the exploded structure of a deformation clamping mechanism of a CNC machine tool used for sheet metal turning.

[0035] In the figure: 1. device body; 2. control panel; 3. transmission bin; 4. clamping slide; 5. sliding cover; 6. driving mechanism; 61. driving motor; 62. motor turntable; 63. driving belt; 64. driving rotating rod; 65. turntable; 66. spring mounting seat; 67. first clamping plate spring; 68. first screw rod block; 69. first connecting plate screw; 610. second clamping plate spring; 611. second screw rod block; 612. second connecting plate screw; 613. turntable block; 7. clamping mechanism; 71. first clamping plate connecting plate; 72. first clamping plate connecting rod; 73. first connecting rod block; 74. first sheet material clamping plate; 75. The second clamping plate connecting plate; 76, the second clamping plate connecting rod; 77, the second connecting rod clamping block; 78, the second plate clamping plate; 8, the positioning mechanism; 81, the positioning turntable; 82, the positioning slide groove; 83, the connecting clamping slot; 84, the spring mounting compartment; 85, the clamping block spring; 86, the positioning clamping block; 87, the positioning connecting rod; 88, the deformation clamping mechanism; 881, the clamping base; 882, the base slide groove; 883, the first layer deformation rotating block; 884, the first layer deformation clamping block; 885, the first layer deformation rotating groove; 886, the second layer deformation rotating block; 887, the second layer deformation clamping block; 888, the second layer deformation rotating groove; 889, the plate positioning block; 8810, the positioning block rotating block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a CNC machine tool for sheet metal turning.

[0038] Embodiment 1:

[0039] See also Figure 1-Figure 11 A CNC machine tool for sheet metal turning processing comprises a device body 1, a control panel 2, a transmission compartment 3 and a sliding cover plate 5, wherein the control panel 2 is fixedly installed on the outside of the device body 1, the transmission compartment 3 is fixedly installed on the inside of the device body 1, the sliding cover plate 5 is slidably installed on the outside of the transmission compartment 3, a clamping groove 4 is opened on one side of the transmission compartment 3, a driving mechanism 6 is installed inside the transmission compartment 3, and a clamping mechanism 7 and a positioning mechanism 8 are installed on the driving mechanism 6;

[0040] The driving mechanism 6 includes a driving motor 61 and a transmission rotating rod 64. The motor rotating disk 62 is installed inside the sliding cover plate 5. The transmission rotating rod 64 is rotatably installed on the inner wall of the transmission compartment 3. The driving motor 61 can drive the transmission rotating rod 64 to rotate inside the sliding cover plate 5.

[0041] The clamping mechanism 7 includes a first plate clamping plate 74 and a second plate clamping plate 78. The transmission rotating rod 64 can drive the first plate clamping plate 74 and the second plate clamping plate 78 to move closer to each other when rotating. When the first plate clamping plate 74 and the second plate clamping plate 78 move closer to each other, the sheet metal material can be clamped from both sides.

[0042] The positioning mechanism 8 includes a positioning connecting rod 87 and a deformation clamping mechanism 88. The deformation clamping mechanism 88 is arranged at one end of the positioning connecting rod 87. The positioning connecting rod 87 is movably installed inside the clamping slide groove 4. When the transmission rotating rod 64 rotates, it can drive the positioning connecting rod 87 along the clamping slide groove 4 to move closer to the center of the transmission bin 3, so as to drive the deformation clamping mechanism 88 to move synchronously. The inner side of the deformation clamping mechanism 88 can adapt to the shape of the edge of the sheet metal material when it contacts the edge of the sheet metal material, and can clamp the periphery of the sheet metal material.

[0043] When working, first place the sheet metal to be turned at the center of the deformation clamping mechanism 88, then start the drive motor 61, and drive the transmission rod 64 to rotate synchronously through the drive motor 61. When the drive motor 61 drives the transmission rod 64 to rotate forward, it can drive the positioning connecting rod 87 to move toward the center of the clamping slot 4. When the positioning connecting rod 87 moves toward the center of the clamping slot 4, it can drive the deformation clamping mechanism 88 to gradually contact the edge of the sheet metal. When the positioning connecting rod 87 moves, it can also drive the first sheet metal clamping plate 74 and the second sheet metal clamping plate 78 to move, and the deformation clamping mechanism 88 can be deformed according to the shape of the edge of the sheet metal. The transmission rod 64 drives the deformation clamping mechanism 88 to deform according to the shape of the edge of the sheet metal. When the variable clamping mechanism 88 clamps the sheet metal part, it can also drive the first sheet metal clamp 74 and the second sheet metal clamp 78 to approach each other, and can fix the front and back of the sheet metal part through the first sheet metal clamp 74 and the second sheet metal clamp 78. When fixing the sheet metal part, the deformable clamping mechanism 88 can be used to adapt to sheet metal parts with different edge shapes, and then the front and rear surfaces and side edges of the sheet metal part are limited and fixed at the same time to prevent the sheet metal part from shifting and falling off during the processing, thereby improving the accuracy of subsequent turning. After the processing is completed, the driving motor 61 can drive the transmission rotating rod 64 to rotate in the opposite direction to relax the deformable clamping mechanism 88 and the clamping mechanism 7 can remove the sheet metal part.

[0044] Embodiment 2:

[0045] The difference from the above embodiment is that, please refer to Figure 2-Figure 3The driving mechanism 6 includes a driving motor 61 and a transmission rotating rod 64. The driving motor 61 is fixedly installed inside the transmission bin 3. The driving end of the driving motor 61 is fixedly connected with the motor turntable 62. The outside of the transmission rotating rod 64 is fixedly installed with a turntable turntable 65. The outside of the motor turntable 62 is connected to the outside of the turntable turntable 65 through a transmission belt 63. The outside of the transmission rotating rod 64 is fixedly installed with a spring mounting seat 66. The first clamping plate spring 67 and the second clamping plate spring 610 are fixedly installed on both sides of the spring mounting seat 66. The movable end of the first clamping plate spring 67 is fixedly connected with the first connecting plate screw 69, and the movable end of the second clamping plate spring 610 is fixedly connected with the second connecting plate screw 612. The outside of the transmission rotating rod 64 is fixedly installed with a first screw block 68 and a second screw block 611. The first connecting plate screw 69 and the second connecting plate screw 612 are both slidably installed on the outside of the transmission rotating rod 64. The outside of the transmission rotating rod 64 is fixedly installed with a turntable block 613.

[0046] The ends of the first connecting plate screw 69 and the second connecting plate screw 612 that are close to each other are connected to the two sides of the spring mounting seat 66 through the first clamping plate spring 67 and the second clamping plate spring 610 respectively. The inner side of the first connecting plate screw 69 is clamped with the outer side of the transmission rotating rod 64 through the first screw clamping block 68, and the inner side of the second connecting plate screw 612 is clamped with the outer side of the transmission rotating rod 64 through the second screw clamping block 611.

[0047] When the driving motor 61 rotates, it can drive the transmission rotating rod 64 to rotate synchronously through the transmission belt 63. When the transmission rotating rod 64 rotates, it can drive the first connecting plate screw 69 and the second connecting plate screw 612 to rotate through the first screw block 68 and the second screw block 611. The thread lines of the first connecting plate screw 69 and the second connecting plate screw 612 are in opposite directions. The rotation of the first connecting plate screw 69 and the second connecting plate screw 612 can drive the clamping mechanism 7 to clamp the sheet metal from the front and back.

[0048] The two ends of the transmission rotating rod 64 are rotatably installed on the side walls on both sides of the interior of the transmission bin 3, and the installation order of the outside of the transmission rotating rod 64 is the rotating rod rotating disk 65, the first connecting disk screw 69, the first clamping plate spring 67, the spring mounting seat 66, the second clamping plate spring 610, the second connecting disk screw 612 and the rotating disk block 613. The outside of the first connecting disk screw 69 and the second connecting disk screw 612 are connected to the clamping mechanism 7, and the outside of the rotating disk block 613 is clamped with the inside of the positioning mechanism 8.

[0049] When the driving motor 61 drives the transmission rotating rod 64 to rotate forward, it can drive the clamping mechanism 7 to clamp the sheet metal from the front and back. When the transmission rotating rod 64 rotates, it can also synchronously drive multiple positioning connecting rods 87 to move toward the center of the clamping slide groove 4. When the positioning connecting rod 87 moves toward the center of the clamping slide groove 4, it can drive the deformation clamping mechanism 88 to clamp the sheet metal. When the positioning connecting rod 87 moves, it can also drive the first sheet metal clamp 74 and the second sheet metal clamp 78 to move to adapt to the shape of the sheet metal. When the driving motor 61 drives the transmission rotating rod 64 to rotate in the opposite direction, it can drive the first connecting plate through the first screw block 68 and the second screw block 611. The screw 69 and the second connecting plate screw 612 rotate. The rotation of the first connecting plate screw 69 and the second connecting plate screw 612 can drive the clamping mechanism 7 to loosen the sheet metal. When the transmission rotating rod 64 rotates, it can also synchronously drive multiple positioning connecting rods 87 to move outward. When the positioning connecting rod 87 moves outward, it can drive the deformation clamping mechanism 88 to loosen the sheet metal. When the positioning connecting rod 87 moves, it can also drive the first sheet metal clamp 74 and the second sheet metal clamp 78 to move outward to loosen the sheet metal. The sheet metal is fixed by the synchronous movement of the clamping mechanism 7 and the positioning mechanism 8, so that the sheet metal is always fixed in the center of the clamping slide groove 4.

[0050] Embodiment three:

[0051] The difference from the above embodiment is that, please refer to Figure 3-Figure 9 The clamping mechanism 7 includes a first clamping plate connecting plate 71 and a second clamping plate connecting plate 75. The first clamping plate connecting plate 71 is threadedly installed on the outside of the first connecting plate screw 69, and the second clamping plate connecting plate 75 is threadedly installed on the outside of the second connecting plate screw 612. The first clamping plate connecting plate 71 is slidably installed with a first clamping plate connecting rod 72, and the two ends of the first clamping plate connecting rod 72 are respectively fixedly connected with a first connecting rod block 73 and a first sheet material clamp 74, and the second clamping plate connecting plate 75 is slidably installed with a second clamping plate connecting rod 76, and the two ends of the second clamping plate connecting rod 76 are respectively fixedly connected with a second connecting rod block 77 and a second sheet material clamp 78.

[0052] The surfaces of the first clamping plate connecting disk 71 and the second clamping plate connecting disk 75 are radially provided with limiting grooves, and the limiting grooves on the surfaces of the first clamping plate connecting disk 71 and the second clamping plate connecting disk 75 are respectively distributed in a circumferential manner, one end of the first clamping plate connecting rod 72 is clamped in the limiting groove of the first clamping plate connecting disk 71 through the first connecting rod clamping block 73, the other end of the first clamping plate connecting rod 72 passes through the positioning mechanism 8 and is fixedly connected to the first plate clamping plate 74, one end of the second clamping plate connecting rod 76 is clamped in the limiting groove of the second clamping plate connecting disk 75 through the second connecting rod clamping block 77, and the other end of the second connecting rod clamping block 77 passes through the positioning mechanism 8 and is fixedly connected to the second plate clamping plate 78;

[0053] The diameter of the first clamping plate connecting disk 71 is smaller than the diameter of the second clamping plate connecting disk 75. The second clamping plate connecting rods 76 are closer to the transmission rotating rod 64 than the first clamping plate connecting rods 72, and the number of the first clamping plate connecting rods 72 and the second clamping plate connecting rods 76 are equal.

[0054] When the first connection plate screw 69 and the second connection plate screw 612 rotate, they can drive the first clamping plate connection plate 71 and the second clamping plate connection plate 75 to move closer to or farther from each other. When the first clamping plate connection plate 71 and the second clamping plate connection plate 75 move, they can respectively drive the first clamping plate connection rod 72 and the second clamping plate connection rod 76 to move through the first connecting rod clamp block 73 and the second connecting rod clamp block 77. When the first clamping plate connection rod 72 and the second clamping plate connection rod 76 move, they can drive the first sheet metal clamp 74 and the second sheet metal clamp 78 to clamp or loosen the sheet metal parts from the front and rear directions.

[0055] The first connecting plate screw 69 and the second connecting plate screw 612 are connected to the first clamping plate spring 67 through the first clamping plate spring 67 and the second clamping plate spring 610 respectively. After the first sheet metal clamp 74 and the second sheet metal clamp 78 clamp the sheet metal and cannot move, the first connecting plate screw 69 and the second connecting plate screw 612 continue to rotate. When the first connecting plate screw 69 and the second connecting plate screw 612 continue to rotate, they can compress the first clamping plate spring 67 and the second clamping plate spring 610 to continue to move toward the direction of the spring mounting seat 66.

[0056] When the transmission rotating rod 64 drives the first connecting plate screw 69 and the second connecting plate screw 612 to rotate, it can drive the first clamping plate connecting plate 71 and the second clamping plate connecting plate 75 to move closer to or away from each other. When the first clamping plate connecting plate 71 and the second clamping plate connecting plate 75 move, they can drive the first clamping plate connecting rod 72 and the second clamping plate connecting rod 76 to move through the first connecting rod block 73 and the second connecting rod block 77. When the first clamping plate connecting rod 72 and the second clamping plate connecting rod 76 move, they can drive the first plate clamping plate 74 and the second plate clamping plate 78 to clamp or loosen the sheet metal parts from the front and back directions. The first plate clamping plate 74 and the second plate clamping plate 78 complete the fixation of the sheet metal parts. After that, it cannot move, while the first connecting plate screw 69 and the second connecting plate screw 612 continue to rotate, and the first connecting plate screw 69 and the second connecting plate screw 612 can move toward the direction of the spring mounting seat 66 when they continue to rotate. The first connecting plate screw 69 and the second connecting plate screw 612 can compress the first clamping plate spring 67 and the second clamping plate spring 610 when they move toward the direction of the spring mounting seat 66. The elastic force of the first clamping plate spring 67 and the second clamping plate spring 610 on the first connecting plate screw 69 and the second connecting plate screw 612 can increase the clamping force of the first plate clamp 74 and the second plate clamp 78 on the sheet metal, thereby significantly improving the stability during clamping.

[0057] Embodiment 4:

[0058] The difference from the above embodiment is that, please refer to Figure 7-Figure 11 The positioning mechanism 8 includes a positioning turntable 81 and a positioning connecting rod 87. The positioning turntable 81 is fixedly mounted on the outside of the transmission turntable 64. A positioning slide groove 82 is provided inside the positioning turntable 81. A connecting card slot 83 is provided inside the positioning turntable 81. A spring mounting chamber 84 is fixedly mounted inside the connecting card slot 83. A card block spring 85 is fixedly mounted inside the spring mounting chamber 84. A positioning card block 86 is fixedly connected to the movable end of the card block spring 85. The positioning connecting rod 87 is movably mounted inside the clamping slide groove 4. A deformation clamping mechanism 88 is provided at one end of the positioning connecting rod 87.

[0059] There are multiple positioning connecting rods 87, and the multiple positioning connecting rods 87, the positioning slide grooves 82 and the clamping slide grooves 4 correspond one to one. The multiple positioning slide grooves 82 form a turbine-type structure. One end of the positioning connecting rod 87 passes through the positioning slide groove 82 and the clamping slide groove 4 and is connected to the deformation clamping mechanism 88. The first clamping plate connecting rod 72 and the second clamping plate connecting rod 76 both pass through the positioning connecting rod 87 and slide with the inside of the positioning connecting rod 87.

[0060] The outside of the transmission rotating rod 64 is engaged with the positioning block 86 inside the positioning rotating disk 81 through the rotating disk block 613. When the transmission rotating rod 64 drives the positioning rotating disk 81 to rotate, it can drive the positioning connecting rod 87 to move inside the clamping slide groove 4.

[0061] When the positioning turntable 81 rotates, it can synchronously drive multiple positioning connecting rods 87 to move closer to the center of the clamping slot 4. When the positioning connecting rods 87 move closer to the center of the clamping slot 4, they can drive the deformation clamping mechanism 88 to clamp the edge of the sheet metal.

[0062] The deformation clamping mechanism 88 includes a clamping base 881, a first-layer deformation rotating block 883, a second-layer deformation rotating block 886 and a plate positioning block 889. The clamping base 881 is fixedly installed on the positioning connecting rod 87. A base sliding groove 882 is provided inside the clamping base 881. A first-layer deformation rotating block 883 is provided inside a first-layer deformation rotating groove 885. A second-layer deformation rotating block 886 is provided inside a second-layer deformation rotating groove 888. A first-layer deformation clamping block 884 is fixedly installed outside the first-layer deformation rotating block 883. A second-layer deformation clamping block 887 is fixedly installed outside the second-layer deformation rotating block 886. A positioning block rotating block 8810 is fixedly installed outside the plate positioning block 889.

[0063] The first-layer deformation transfer block 883 is rotatably installed inside the clamping base 881 through the first-layer deformation clamping block 884, the second-layer deformation transfer block 886 is rotatably installed inside the first-layer deformation transfer block 883 through the second-layer deformation clamping block 887, and the plate positioning block 889 is rotatably installed inside the second-layer deformation transfer block 886 through the positioning block transfer block 8810. The first-layer deformation transfer block 883, the second-layer deformation transfer block 886 and the plate positioning block 889 are stacked layer by layer on one side of the clamping base 881, and the first-layer deformation transfer block 883, the second-layer deformation transfer block 886 and the plate positioning block 889 can adjust the angle of each plate positioning block 889 by rotating relative to each other.

[0064] When the transmission rotating rod 64 rotates, it can drive the positioning rotating disk 81 to rotate through the engagement of the rotating disk block 613 and the positioning block 86. When the positioning rotating disk 81 rotates, it can drive the positioning slide slot 82 to rotate. When the positioning slide slot 82 rotates, it can limit the positioning connecting rod 87 along the clamping slide slot 4 toward the center of the positioning rotating disk 81 through the restriction of the turbine-type slide slot. When the positioning connecting rod 87 moves, it can drive the internal first clamping plate connecting rod 72 and the second clamping plate connecting rod 76 to move synchronously. When the first clamping plate connecting rod 72 and the second clamping plate connecting rod 76 move with the positioning connecting rod 87, the other end moves along the limiting grooves on the first clamping plate connecting disk 71 and the second clamping plate connecting disk 75. During the movement of the positioning connecting rod 87, it can drive the deformation clamping mechanism 88 and the clamping mechanism 7 to clamp and fix the sheet metal. During the movement of the deformation clamping mechanism 88, the first layer deformation rotating block 883, the second layer deformation rotating block 886 and the sheet metal The positioning blocks 889 rotate relative to each other, and during the rotation of the plate positioning blocks 889, they adapt to the shape of the edge of the sheet metal, thereby being able to adapt to sheet metal parts of different shapes. After the deformation clamping mechanism 88 clamps the sheet metal part, the positioning connecting rod 87 cannot continue to move toward the center of the positioning turntable 81, so that the positioning turntable 81 cannot continue to rotate. The transmission rotating rod 64 continues to rotate and can squeeze the positioning block 86 through the turntable block 613, so that the positioning block 86 is collected into the spring mounting chamber 84. After the positioning block 86 is collected into the spring mounting chamber 84, the transmission rotating rod 64 continues to rotate, and the transmission rotating rod 64 continues to rotate to drive the first plate clamp 74 and the second plate clamp 78 to clamp the sheet metal part. By using the sheet metal edge shape deformation clamping mechanism 88 to clamp the sheet metal part, sheet metal parts of different shapes can be clamped, thereby preventing the sheet metal parts from offsetting during the processing and affecting the processing accuracy.

[0065] While embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the 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 CNC machine tool for sheet metal turning, comprising a device body, a control panel, a transmission compartment and a sliding cover plate, wherein the control panel is fixedly mounted on the outside of the device body, the transmission compartment is fixedly mounted on the inside of the device body, and the sliding cover plate is slidably mounted on the outside of the transmission compartment, characterized in that: A clamping slot is provided on one side of the transmission bin, a driving mechanism is installed inside the transmission bin, and a clamping mechanism and a positioning mechanism are installed on the driving mechanism; The driving mechanism comprises a driving motor and a transmission rotating rod, wherein the motor rotating disk is mounted inside the sliding cover plate, and the transmission rotating rod is rotatably mounted on the inner side wall of the transmission compartment, and the driving motor can drive the transmission rotating rod to rotate inside the sliding cover plate; The clamping mechanism comprises a first plate clamping plate and a second plate clamping plate, and the transmission rotating rod can drive the first plate clamping plate and the second plate clamping plate to move closer to each other when rotating, and the first plate clamping plate and the second plate clamping plate can clamp the sheet metal material from the front and rear sides when moving closer to each other; The positioning mechanism includes a positioning connecting rod and a deformation clamping mechanism, the deformation clamping mechanism is arranged at one end of the positioning connecting rod, and the positioning connecting rod is movably installed inside the clamping slide groove. When the transmission rotating rod rotates, it can drive the positioning connecting rod along the clamping slide groove to move closer to the center of the transmission bin, so as to drive the deformation clamping mechanism to move synchronously. The inner side of the deformation clamping mechanism can adapt to the shape of the edge of the sheet metal material when it contacts the edge of the sheet metal material, and can clamp the periphery of the sheet metal material.

2. A CNC machine tool for sheet metal turning according to claim 1, characterized in that: The transmission gear is connected with the transmission gear of the present invention through the transmission belt, and the transmission gear is connected with the transmission gear of the present invention through the transmission belt.

3. A CNC machine tool for sheet metal turning according to claim 2, characterized in that: The ends of the first connecting plate screw and the second connecting plate screw that are close to each other are respectively connected to the two sides of the spring mounting seat through the first clamping plate spring and the second clamping plate spring, the inner side of the first connecting plate screw is clamped with the outer side of the transmission rotating rod through the first screw clamping block, and the inner side of the second connecting plate screw is clamped with the outer side of the transmission rotating rod through the second screw clamping block.

4. A CNC machine tool for sheet metal turning according to claim 3, characterized in that: The two ends of the transmission rotating rod are respectively rotatably installed on the side walls on both sides of the transmission bin, and the installation order of the outside of the transmission rotating rod is the rotating rod rotating disk, the first connecting disk screw, the first clamping plate spring, the spring mounting seat, the second clamping plate spring, the second connecting disk screw and the rotating disk block. The outside of the first connecting disk screw and the second connecting disk screw are connected to the clamping mechanism, and the outside of the rotating disk block is clamped with the inside of the positioning mechanism.

5. A CNC machine tool for sheet metal turning according to claim 4, characterized in that: The clamping mechanism includes a first clamping plate connecting plate and a second clamping plate connecting plate, the first clamping plate connecting plate is threadedly installed on the outside of the first connecting plate screw, the second clamping plate connecting plate is threadedly installed on the outside of the second connecting plate screw, the first clamping plate connecting plate is slidably installed with a first clamping plate connecting rod, the two ends of the first clamping plate connecting rod are respectively fixedly connected with a first connecting rod block and a first sheet material clamp, the second clamping plate connecting plate is slidably installed with a second clamping plate connecting rod, the two ends of the second clamping plate connecting rod are respectively fixedly connected with a second connecting rod block and a second sheet material clamp.

6. A CNC machine tool for sheet metal turning according to claim 5, characterized in that: The surfaces of the first splint connecting plate and the second splint connecting plate are radially provided with limiting grooves, and the limiting grooves on the surfaces of the first splint connecting plate and the second splint connecting plate are respectively distributed in a circumference, one end of the first splint connecting rod is clamped in the limiting groove of the first splint connecting plate through the first connecting rod clamping block, the other end of the first splint connecting rod is fixedly connected to the first plate splint through a positioning mechanism, one end of the second splint connecting rod is clamped in the limiting groove of the second splint connecting plate through the second connecting rod clamping block, and the other end of the second connecting rod clamping block is fixedly connected to the second plate splint through the positioning mechanism.

7. A CNC machine tool for sheet metal turning according to claim 6, characterized in that: The positioning mechanism includes a positioning turntable and a positioning connecting rod, the positioning turntable is fixedly mounted on the outside of the transmission turntable, a positioning slide groove is opened inside the positioning turntable, a connecting slot is opened inside the positioning turntable, a spring mounting compartment is fixedly mounted inside the connecting slot, a block spring is fixedly mounted inside the spring mounting compartment, a movable end of the block spring is fixedly connected to a positioning block, the positioning connecting rod is movably mounted inside the clamping slide groove, and a deformation clamping mechanism is provided at one end of the positioning connecting rod.

8. A CNC machine tool for sheet metal turning according to claim 7, characterized in that: The positioning slot forms a turbine-type structure, one end of the positioning connecting rod passes through the positioning slot and the clamping slot and is connected to the deformation clamping mechanism, and the first clamping plate connecting rod and the second clamping plate connecting rod both pass through the positioning connecting rod and slide with the inside of the positioning connecting rod.

9. A CNC machine tool for sheet metal turning according to claim 8, characterized in that: The outside of the transmission rotating rod is clamped with the positioning clamping block inside the positioning rotating disk through the rotating disk clamping block. When the transmission rotating rod drives the positioning rotating disk to rotate, it can drive the positioning connecting rod to move inside the clamping sliding groove.

10. A CNC machine tool for sheet metal turning according to claim 9, characterized in that: The deformation clamping mechanism comprises a clamping base, a first-layer deformation transfer block, a second-layer deformation transfer block and a plate positioning block, the clamping base is fixedly installed on the positioning connecting rod, a base slide groove is provided inside the clamping base, a first-layer deformation transfer groove is provided inside the first-layer deformation transfer block, a second-layer deformation transfer groove is provided inside the second-layer deformation transfer block, a first-layer deformation clamping block is fixedly installed outside the first-layer deformation transfer block, a second-layer deformation clamping block is fixedly installed outside the second-layer deformation transfer block, and a positioning block transfer block is fixedly installed outside the plate positioning block; The first-layer deformation transfer block is rotatably installed inside the clamping base through a first-layer deformation clamping block, the second-layer deformation transfer block is rotatably installed inside the first-layer deformation transfer block through a second-layer deformation clamping block, the plate positioning block is rotatably installed inside the second-layer deformation transfer block through a positioning block transfer block, the first-layer deformation transfer block, the second-layer deformation transfer block and the plate positioning block are stacked in layers on one side of the clamping base, and the first-layer deformation transfer block, the second-layer deformation transfer block and the plate positioning block can adjust the angle of each plate positioning block by rotating relative to each other.

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