Turnover clamping mechanism suitable for cold heading forming equipment

Abstract

The invention relates to the technical field of metal processing machinery, and particularly discloses a turnover clamping mechanism suitable for cold heading forming equipment, the turnover clamping mechanism comprises a mounting unit, a regulation and control unit is arranged at the top of the mounting unit, and clamping units are arranged on the front side and the rear side of the regulation and control unit; and the regulation and control unit comprises fixing frames, a driving lead screw and a regulation and control sliding block, and the fixing frames are fixedly arranged on the two sides of the top of the mounting unit. A first rotating motor, a second rotating motor and an electric control rotating shaft are used for driving a first rotating shaft, a second rotating shaft and a third servo electric cylinder to rotate correspondingly, a first rotating disc is matched, multi-angle and multi-mode overturning and rotating control over the clamping unit is achieved, and through the structural design, the clamping unit can achieve multi-angle and multi-mode overturning and rotating control according to the cold heading forming machining direction of a workpiece; the position and the angle are flexibly adjusted, clamping feeding and overturning clamping control over the workpiece are automatically completed, and the cold heading forming machining efficiency of the workpiece is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing machinery, in particular to a flip clamping mechanism suitable for cold heading forming equipment. Background Art

[0002] As a key equipment in the field of metal processing, cold heading equipment is widely used in many industries such as fasteners and automotive parts. Through the cold heading process, metal wires or bars are cold extruded in the mold. It has many advantages such as high production efficiency, high material utilization rate, and stable product quality, and can meet the needs of large-scale industrial production. In the cold heading process, the flipping clamping mechanism plays a vital role. It is responsible for accurately transferring the workpiece from the previous station to the next station, and stably clamping and accurately flipping the workpiece during the processing process, which directly affects the processing accuracy and production efficiency of the product.

[0003] However, the flip clamping mechanism of the cold heading forming equipment currently on the market has significant defects. On the one hand, when the existing flip clamping mechanism adjusts the distance between the clamping component and the manipulator frame, the transmission accuracy of the gear pair is easily affected, resulting in the need for recalibration after each adjustment. Not only is the operation cumbersome, but the overall accuracy and stability of the equipment is difficult to guarantee during the frequent adjustment process, which in turn affects the processing accuracy and makes the product quality uneven. On the other hand, the existing clamping mechanism lacks flexibility when dealing with workpieces of different shapes and sizes, and cannot achieve automatic and efficient clamping and flipping of the workpiece. It often requires manual intervention or replacement of a large number of parts, resulting in low production efficiency and difficulty in meeting diverse production needs. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a flip clamping mechanism suitable for cold heading forming equipment, in order to solve the above-mentioned technical defects.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flip clamping mechanism suitable for cold heading forming equipment, comprising a mounting unit, a regulating unit is arranged on the top of the mounting unit, and a clamping unit is arranged on the front and rear sides of the regulating unit; the regulating unit comprises a fixed frame, a driving screw and a regulating slider, fixed frames are fixedly arranged on both sides of the top of the mounting unit, and driving screws are rotatably arranged on the front and rear sides of the two fixed frames, and a regulating slider is slidably arranged on the top of the mounting unit, and matching threaded holes are arranged on the front and rear sides of the inside of the regulating slider, and the insides of the two matching threaded holes are respectively threadedly connected with the surfaces of the two driving screws; a regulating drive frame is fixedly arranged on the right side of the fixed frame located on the right side, and a regulating motor is fixedly arranged on the right side of the regulating drive frame, the right ends of the two driving screws extend to the inside of the regulating drive frame, and are rotatably connected to one side of the inner wall of the regulating drive frame, the left end of the output shaft of the regulating motor extends to the inside of the regulating drive frame, and the left end of the regulating motor and the right ends of the two driving screws are fixedly arranged with driving gears, and the tooth surfaces of the three driving gears are connected by transmission chain transmission.

[0006] Furthermore, offset sliders are slidably provided on the front and rear sides of the top of the regulating slider, a first servo electric cylinder is fixedly provided inside the two offset sliders, a connecting frame 1 is fixedly provided on the top of the driving shaft of the two first servo electric cylinders, a rotating sleeve and a rotating shaft 1 are rotatably provided inside the two connecting frames 1, the surfaces of the two rotating shafts 1 are respectively fixedly connected to the inside of the two rotating sleeves, a first rotating motor is fixedly provided on one side of the two connecting frames 1, and one end of the output shaft of the two first rotating motors is respectively fixedly connected to the inside of the two rotating shafts 1.

[0007] Furthermore, a second servo electric cylinder is fixedly provided on the surface of the two rotating sleeves, a connecting frame 2 is fixedly provided on one end of the driving shaft of the two second servo electric cylinders, a rotating shaft 2 and a rotating frame are rotatably provided inside the two connecting frames 2, the surfaces of the two rotating shafts 2 are fixedly connected to the inside of the two rotating frames, a second rotating motor is fixedly provided on one side of the two connecting frames 2, and one end of the output shaft of the two second rotating motors is respectively fixedly connected to the inside of the two rotating shafts 2.

[0008] Furthermore, an electrically controlled rotating shaft is rotatably arranged on one side of the two rotating frames, a third servo electric cylinder is fixedly arranged on the surface of the two electrically controlled rotating shafts, a rotating disk 1 is fixedly arranged at the bottom end of the driving shaft of the two third servo electric cylinders, and the bottoms of the two rotating disks 1 are respectively connected to the tops of the two clamping units.

[0009] Furthermore, the clamping unit includes a material clamping mounting frame, the top of the material clamping mounting frame is rotatably connected to the bottom of the rotating disk one, the front and rear sides of the bottom of the material clamping mounting frame are fixedly provided with linear slides, the left and right sides of the bottoms of the two linear slides are fixedly provided with control slides, the two control slides are provided with extension slides on the opposite sides thereof for sliding up and down through electric sliders, the rotating disk two is fixedly provided on the opposite sides of the two extension slides, the two rotating disks two are rotatably provided with connecting plates on the opposite sides thereof, and the two connecting plates are rotatably provided with shape memory pads on the opposite sides thereof, and the shape memory pads are made of thermo-induced shape memory polymer.

[0010] Furthermore, fourth servo electric cylinders are fixedly provided on both sides of the top of the material clamping mounting frame, a lifting frame is movably provided at the bottom of the material clamping mounting frame, both sides of the top of the lifting frame are respectively fixedly connected to the bottom ends of the driving shafts of the two fourth servo electric cylinders, three flexible adsorption blocks are movably provided at the bottom of the lifting frame, a number of micro electric cylinders are fixedly provided at the bottom of the lifting frame, the bottom ends of the driving shafts of the micro electric cylinders are respectively fixedly connected to the tops of the three flexible adsorption blocks, and the bottoms of the three flexible adsorption blocks are all embedded with electromagnetic adsorption sheets.

[0011] Furthermore, a rotation limit frame 1 is provided on the front and rear sides of the material clamping mounting frame through an electrically controlled rotating shaft, and a rotation limit frame 2 is provided on one side of the two rotation limit frames 1 through an electrically controlled rotating shaft.

[0012] Furthermore, an oil storage tank is fixedly provided on one side of the two offset sliding blocks, and two oil guide pipes are provided inside the two oil storage tanks through a micro oil pump, and one end of the two oil guide pipes is respectively connected to the first lubrication groove and the second lubrication groove inside the rotating sleeve and the rotating frame.

[0013] Furthermore, a fixed block is fixedly provided in the middle part of the top of the regulating slider, and transmission tooth grooves are provided on the front and rear sides of the fixed block. Offset gears are rotatably provided on the opposite sides of the two offset sliders, and the tooth surfaces of the two offset gears are respectively meshed with the transmission tooth grooves on the front and rear sides of the fixed block for transmission, and one end of the two offset gears are driven to rotate by a motor built into the two offset sliders.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows:

[0015] 1. In the present invention, the mounting unit is connected to the cold heading forming machine by bolts, which ensures the stable installation of the entire mechanism. The regulating motor in the regulating unit drives the driving screw to rotate, so as to realize the left and right sliding of the regulating slider on the top of the mounting unit, which is convenient for adjusting the lateral position of the clamping unit. The first servo electric cylinder on the regulating slider can control the connection frame to lift and adjust the height of the clamping unit; the first rotating motor, the second rotating motor and the electrically controlled rotating shaft respectively drive the rotating shaft one, the rotating shaft two and the third servo electric cylinder to rotate, and cooperate with the rotating disk one to realize multi-angle and multi-mode flipping and rotation control of the clamping unit. Through the above-mentioned structural design, the clamping unit can flexibly adjust the position and angle according to the cold heading forming processing orientation of the workpiece, automatically complete the clamping, feeding and flipping clamping control of the workpiece, and greatly improve the cold heading forming processing efficiency of the workpiece.

[0016] 2. When lubricating the surfaces of rotating shaft one and rotating shaft two, the lubricating oil in the oil storage tank is pumped into the first lubrication groove and the second lubrication groove through two oil guide pipes. The lubricating oil is pumped in periodically during the working process of rotating shaft one and rotating shaft two to form a lubricating film, which effectively reduces the friction between the joints, reduces wear and energy loss.

[0017] 3. When cold heading the workpiece, the two offset sliders are controlled to be offset on the top of the regulating slider, and the offset gears on one side of the two offset sliders are engaged with the transmission tooth grooves on the front and rear sides of the fixed block to allow the two offset sliders to move to the left and right sides respectively on the front and rear sides of the fixed block. When the left regulating unit and the clamping unit are used to clamp and feed the workpiece, the right regulating unit and the clamping unit can be used simultaneously to clamp the workpiece for cold heading, which greatly improves the efficiency of automatic control, flipping and clamping of the workpiece for cold heading. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the flip clamping mechanism applicable to the cold heading forming equipment according to the embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a control drive frame and a drive gear structure according to an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a control unit structure according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of an oil storage tank and an oil guide pipe structure according to an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the clamping unit structure according to an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the connecting plate, shape memory pad and rotary disk II structures according to an embodiment of the present invention;

[0025] Figure 7 Schematic diagram of the lifting frame and flexible adsorption block structures according to an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the fixed block and misaligned gear structures according to an embodiment of the present invention.

[0027] In the figure, 1, installation unit; 2, regulation unit; 3, clamping unit; 4, fixed frame; 5, driving lead screw; 6, regulation slider; 7, mating threaded hole; 8, regulation motor; 9, regulation driving frame; 10, driving gear; 11, transmission chain; 12, first servo cylinder; 13, connecting frame I; 14, rotating sleeve; 15, rotating shaft I; 16, first rotating motor; 17, second servo cylinder; 18, connecting frame II; 19, rotating frame; 20, rotating shaft II; 21, second rotating motor; 22, electric control rotating shaft; 23, third servo cylinder; 24, rotary disk I; 25, material clamping installation frame; 26, linear slide; 27, control slide plate; 28, extension slide plate; 29, rotary disk II; 30, connecting plate; 31, shape memory pad; 32, fourth servo cylinder; 33, lifting frame; 34, micro cylinder; 35, flexible adsorption block; 36, rotating limit frame I; 37, rotating limit frame II; 38, oil storage tank; 39, oil guide pipe; 40, misaligned slider; 41, fixed block; 42, misaligned gear. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] Embodiment 1

[0031] See also Figures 1 to 8 As shown, the flip clamping mechanism suitable for cold heading forming equipment includes: a mounting unit 1, a regulating unit 2 is arranged on the top of the mounting unit 1, and clamping units 3 are arranged on the front and rear sides of the regulating unit 2;

[0032] Specifically, when the flipping and clamping mechanism of the cold heading forming equipment is used, the installation unit 1 is installed and connected to the cold heading forming machine tool through a bolt group on all sides, and the control unit 2 is used to drive the clamping unit 3 to automatically clamp and feed the workpiece, and the flipping and clamping control of the workpiece is performed according to the cold heading forming processing orientation of the workpiece to improve the cold heading forming processing efficiency of the workpiece.

[0033] It is also necessary to further explain that the regulating unit 2 includes a fixing frame 4, a driving screw 5 and a regulating slider 6. The fixing frames 4 are fixedly arranged on both sides of the top of the installation unit 1, and the driving screws 5 are rotatably arranged on the front and rear sides of the two fixing frames 4. The regulating slider 6 is slidably arranged on the top of the installation unit 1, and the front and rear sides of the regulating slider 6 are arranged with matching threaded holes 7. The insides of the two matching threaded holes 7 are respectively threadedly connected with the surfaces of the two driving screws 5.

[0034] A regulating drive frame 9 is fixedly arranged on the right side of the fixed frame 4 located on the right side, and a regulating motor 8 is fixedly arranged on the right side of the regulating drive frame 9, the right ends of the two driving screw rods 5 are extended to the interior of the regulating drive frame 9, and the right ends of the two driving screw rods 5 are rotatably connected to one side of the inner wall of the regulating drive frame 9, the left end of the output shaft of the regulating motor 8 extends to the interior of the regulating drive frame 9, and the left end of the regulating motor 8 and the right ends of the two driving screw rods 5 are fixedly arranged with a driving gear 10, and the tooth surfaces of the three driving gears 10 are connected through a transmission chain 11.

[0035] Specifically, when the regulating slider 6 is driven to slide left and right, the driving shaft of the regulating motor 8 cooperates with the driving gear 10 and the transmission chain 11 to drive the two driving screws 5 to rotate synchronously. When the two driving screws 5 rotate clockwise, the regulating slider 6 slides to the left at the top of the mounting unit 1. When the two driving screws 5 rotate counterclockwise, the regulating slider 6 slides to the right at the top of the mounting unit 1, thereby realizing the left and right sliding of the regulating slider 6 at the top of the mounting unit 1.

[0036] Furthermore, offset sliders 40 are slidably provided on the front and rear sides of the top of the regulating slider 6, and the first servo electric cylinders 12 are fixedly provided inside the two offset sliders 40, a connecting frame 13 is fixedly provided on the top of the driving shaft of the two first servo electric cylinders 12, and a rotating sleeve 14 is rotatably provided inside the two connecting frames 13, a rotating shaft 15 is rotatably provided inside the two connecting frames 13, and the surfaces of the two rotating shafts 15 are respectively fixedly connected to the inside of the two rotating sleeves 14, and a first rotating motor 16 is also fixedly provided on one side of the two connecting frames 13, and one end of the output shaft of the two first rotating motors 16 is respectively fixedly connected to the inside of the two rotating shafts 15, and the two rotating shafts 15 are controlled to rotate by the output shafts of the two first rotating motors 16, so as to cooperate with the two rotating shafts 15 to drive the two rotating sleeves 14 to rotate inside the two connecting frames 13, and a first lubrication groove is also provided between the inside of the two rotating sleeves 14 and the surface of the two rotating shafts 15;

[0037] A second servo electric cylinder 17 is fixedly arranged on the surface of the two rotating sleeves 14, and a connecting frame 2 18 is fixedly arranged at one end of the driving shaft of the two second servo electric cylinders 17, a rotating shaft 20 is rotatably arranged inside the two connecting frames 2 18, and a rotating frame 19 is fixedly arranged on the surface of the two rotating shafts 20, wherein a second lubrication groove is arranged between the surface of the rotating shaft 20 and the inside of the rotating frame 19; a second rotating motor 21 is fixedly arranged on one side of the two connecting frames 2 18, and one end of the output shaft of the two second rotating motors 21 is respectively fixedly connected to the inside of the two rotating shafts 20, an electrically-controlled rotating shaft 22 is rotatably arranged on one side of the two rotating frames 19, and a third servo electric cylinder 23 is also fixedly arranged on the surface of the two electrically-controlled rotating shafts 22, a rotating disk 1 24 is fixedly arranged at the bottom end of the driving shaft of the two third servo electric cylinders 23, and the bottoms of the two rotating disks 1 24 are respectively connected to the tops of the two clamping units 3.

[0038] Specifically, when adjusting the position and flipping of the two clamping units 3, the output shaft of the first servo electric cylinder 12 controls the connecting frame 13 to be lifted, thereby lifting the height of the entire clamping unit 3, and the output shaft of the first rotating motor 16 controls the rotating shaft 15 to rotate, and the rotating shaft 15 drives the rotating sleeve 14 to rotate, so as to achieve the first adjustment of the flipping angle of the clamping unit 3, and the output shaft of the second rotating motor 21 controls the rotating shaft 20 to rotate, and the rotating shaft 20 drives the rotating frame 19 to rotate, so as to achieve the second adjustment of the flipping angle of the clamping unit 3, and the electric-controlled rotating shaft 22 set on one side of the rotating frame 19 drives the third servo electric cylinder 23 to rotate, so as to achieve the third adjustment of the flipping angle of the clamping unit 3, and finally the clamping unit 3 is driven to rotate by the rotating disk 124 to adapt to the flexible adjustment of the clamping angle of the workpiece during the cold heading forming process.

[0039] In a specific embodiment, the present invention ensures the stable installation of the entire mechanism by bolting the mounting unit 1 to the cold heading forming machine tool. The regulating motor 8 in the regulating unit 2 drives the driving screw 5 to rotate, so as to realize the left and right sliding of the regulating slider 6 on the top of the mounting unit 1, which is convenient for adjusting the lateral position of the clamping unit 3. The first servo electric cylinder 12 on the regulating slider 6 can control the lifting of the connecting frame 13 to adjust the height of the clamping unit 3; the first rotating motor 16, the second rotating motor 21 and the electrically controlled rotating shaft 22 respectively drive the rotating shaft 15, the rotating shaft 20 and the third servo electric cylinder 23 to rotate, and cooperate with the rotating disk 1 24 to realize multi-angle and multi-mode flipping and rotation control of the clamping unit 3. Through the above-mentioned structural design, the clamping unit 3 can flexibly adjust the position and angle according to the cold heading forming processing orientation of the workpiece, automatically complete the clamping, feeding and flipping clamping control of the workpiece, and greatly improve the cold heading forming processing efficiency of the workpiece.

[0040] Example 2

[0041] When controlling the rotation regulation of rotating shaft 15 and rotating shaft 2 20, in order to prevent the joints and clamping parts of rotating shaft 15 and rotating shaft 2 20 from being subjected to greater friction and mechanical stress during frequent operation, a lubrication structure for rotating shaft 15 and rotating shaft 2 20 is specially designed. Specifically, an oil storage tank 38 is fixedly provided on one side of the two offset sliders 40, and two oil guide pipes 39 are provided inside the two oil storage tanks 38 through a micro oil pump, and one end of the two oil guide pipes 39 is respectively connected to the inside of the first lubrication groove and the second lubrication groove.

[0042] It should be noted that when lubricating the surfaces of rotating shaft 15 and rotating shaft 2 20, the lubricating oil inside the oil storage tank 38 is pumped into the first lubrication groove and the second lubrication groove through two oil guide pipes 39, and is periodically pumped in during the operation of rotating shaft 15 and rotating shaft 2 20 to form a lubricating film, which effectively reduces the friction between the joints, reduces wear and energy loss.

[0043] Example 3

[0044] On the basis of flexible regulation of the clamping unit 3, in order to realize automatic controlled flipping clamping of different types of workpieces, the structural composition of the clamping unit 3 will be specifically disclosed below. The clamping unit 3 includes a material clamping mounting frame 25, and the top of the material clamping mounting frame 25 is rotatably connected to the bottom of the rotating disk 1 24. The front and rear sides of the bottom of the material clamping mounting frame 25 are fixedly provided with linear slides 26, and the left and right sides of the bottoms of the two linear slides 26 are fixedly provided with control slides 27, and the opposite sides of the two control slides 27 are provided with extension slides 28 that slide up and down through electric sliders, and the opposite sides of the two extension slides 28 are fixedly provided with rotating disk 29, and the opposite sides of the two rotating disks 29 are rotatably provided with connecting plates 30, and the opposite sides of the two connecting plates 30 are rotatably provided with shape memory pads 31, wherein the shape memory pad 31 adopts a thermo-induced shape memory polymer, specifically polycaprolactone, at room temperature, it can Maintain a certain hardness and shape, and when the temperature rises to above its glass transition temperature or melting point, the activity of the molecular chain is enhanced, and the material can be deformed. A micro heating and cooling device is built into the connecting plate 30. When the shape memory polymer material layer needs to be deformed to fit the workpiece, the temperature of the material layer is raised to above its glass transition temperature or melting point by the heating device. For the polycaprolactone material layer, the temperature is raised to about 60°C, the material begins to soften, and deforms under the combined action of the clamping force of the splint and the surface contour of the workpiece, fitting closely to the workpiece. After processing, when the material layer needs to be restored to its initial state or adjusted, the cooling device is used to quickly reduce the temperature, and the material layer will gradually harden and be fixed in the current shape, or restored to a preset shape. The temperature of the material layer can be monitored in real time by a temperature sensor and fed back to the control system to accurately adjust the time and intensity of heating and cooling to achieve precise control of deformation.

[0045] Furthermore, fourth servo electric cylinders 32 are fixedly provided on both sides of the top of the material clamping mounting frame 25, and a lifting frame 33 is movably provided at the bottom of the material clamping mounting frame 25, and both sides of the top of the lifting frame 33 are respectively fixedly connected to the bottom ends of the driving shafts of the two fourth servo electric cylinders 32, and three flexible adsorption blocks 35 are movably provided at the bottom of the lifting frame 33, and a number of micro electric cylinders 34 are fixedly provided at the bottom of the lifting frame 33, and the bottom ends of the driving shafts of the several micro electric cylinders 34 are respectively fixedly connected to the tops of the three flexible adsorption blocks 35, and the bottoms of the three flexible adsorption blocks 35 are all embedded with electromagnetic adsorption sheets.

[0046] Furthermore, the front and rear sides of the material clamping mounting frame 25 are both provided with a rotation limit frame 1 36 through an electrically controlled rotating shaft, and one side of the two rotation limit frames 1 36 is both provided with a rotation limit frame 2 37 through an electrically controlled rotating shaft.

[0047] Specifically, when clamping the workpiece to be cold headed, the multi-stage flip angle control inside the control unit 2 is used to turn the clamping mounting frame 25 toward the surface of the workpiece, and the two control slides 27 are controlled to slide toward the two sides of the workpiece according to the shape of the workpiece. The shape memory pads 31 on one side of the two control slides 27 are used to adaptively clamp the two sides of the workpiece, and the bottom end of the driving shaft of the fourth servo electric cylinder 32 is used to control the lifting frame 33 to approach the surface of the workpiece. The bottom ends of the driving shafts of several micro electric cylinders 34 are used to control the flexible adsorption block 35 to magnetically adsorb the upper surface of the workpiece, and the front and rear side surfaces of the workpiece are clamped and limited in cooperation with the rotating limit frame 1 36 and the rotating limit frame 2 37 on the front and rear sides of the clamping mounting frame 25, thereby ensuring the clamping stability of the workpiece.

[0048] When performing cold heading processing on the workpiece, the rotating disk 29 set on one side of the two extension slides 28 is used to control the angle flipping of the connecting plate 30, so as to control the angle flipping of the processing orientation of the workpiece, and when controlling the angle flipping of the processing orientation of the workpiece, the two extension slides 28 are controlled to slide inside the two control slides 27, so as to provide sufficient flipping space for the workpiece processing orientation regulation, thereby realizing automatic control of the flipping clamping of the workpiece cold heading processing.

[0049] Example 4

[0050] It also needs to be further explained that in order to improve the efficiency of cold heading processing on the workpiece, a fixed block 41 is fixedly set in the middle part of the top of the regulating slider 6, and the front and rear sides of the fixed block 41 are provided with transmission tooth grooves, and the two offset sliders 40 are rotatably provided with offset gears 42 on the opposite sides, and the tooth surfaces of the two offset gears 42 are respectively engaged with the transmission tooth grooves on the front and rear sides of the fixed block 41 for transmission, and one end of the two offset gears 42 are driven to rotate by the motor built into the two offset sliders 40.

[0051] It should be noted that when the workpiece is cold headed, the two offset sliders 40 are offset and controlled at the top of the regulating slider 6, and the offset gears 42 on one side of the two offset sliders 40 and the transmission tooth grooves on the front and rear sides of the fixed block 41 are engaged and transmitted, so that the two offset sliders 40 move to the left and right sides respectively on the front and rear sides of the fixed block 41. When the control unit 2 and the clamping unit 3 on the left are used to clamp and feed the workpiece, the control unit 2 and the clamping unit 3 on the right can be used simultaneously to clamp the workpiece for cold heading, which greatly improves the efficiency of automatic control, flipping and clamping of the workpiece for cold heading.

[0052] Example 5

[0053] Specifically, this embodiment also discloses a working method of a flip clamping mechanism suitable for cold heading forming equipment, comprising the following steps:

[0054] Step 1: Fix the mounting unit 1 on the cold heading forming machine tool by means of a bolt group to ensure the stability of the equipment, check whether the connections of each unit component are firm, whether the circuit and oil circuit are normally connected, whether the temperature of the shape memory pad 31 is at room temperature, and whether the initial positions of each electric cylinder and motor are correct;

[0055] Step 2: Start the regulating motor 8, and its driving shaft drives the driving gear 10 to rotate, and the two driving screws 5 rotate synchronously through the transmission chain 11. The driving screw 5 rotates to drive the regulating slider 6 to slide left and right on the top of the installation unit 1, so that the clamping unit 3 moves horizontally to a position close to the workpiece. According to the height of the workpiece, start the first servo electric cylinder 12, and its driving shaft pushes the connecting frame 13 to rise or fall, so as to adjust the height of the clamping unit 3;

[0056] Step 3: According to the shape of the workpiece, control the two control slides 27 to slide on the linear slide 26, so that the shape memory pad 31 is close to the two sides of the workpiece, and start the micro-heating device in the connecting plate 30 to heat the shape memory pad 31 made of polycaprolactone to about 60°C, so that it softens and fits the two sides of the workpiece under the clamping force of the clamp and the surface contour of the workpiece. Start the fourth servo electric cylinder 32, and its drive shaft pushes the lifting frame 33 close to the upper surface of the workpiece. Then start the micro electric cylinder 34, and the drive shaft pushes the flexible adsorption block 35 down, turn on the electromagnetic adsorption sheet, and magnetically adsorb the upper surface of the workpiece. Start the electric control shafts on the front and rear sides of the clamping mounting frame 25, rotate the rotating limit frame 1 36 and the rotating limit frame 2 37, and clamp and limit the front and rear side surfaces of the workpiece to ensure stable clamping of the workpiece.

[0057] Step 4, start the first rotating motor 16, and its output shaft drives the rotating shaft 15 to rotate, and then drives the rotating sleeve 14 to rotate in the connecting frame 13, so as to achieve the first flip angle control of the clamping unit 3, start the second rotating motor 21, and its output shaft drives the rotating shaft 20 to rotate, and drives the rotating frame 19 to rotate, so as to achieve the second flip angle control of the clamping unit 3, and drives the third servo electric cylinder 23 to rotate through the electric control rotating shaft 22, so as to achieve the third flip angle control of the clamping unit 3, and the rotating disk 1 24 rotates to further adjust the angle of the clamping unit 3, so that the workpiece reaches the required position for cold heading processing;

[0058] Step 5: During the cold heading process, if the workpiece processing orientation needs to be adjusted, the rotating disk 29 is started to drive the connecting plate 30 to flip, and the extending slide plate 28 is controlled to slide in the control slide plate 27 to provide enough space for the workpiece to flip. During processing, the micro oil pump periodically pumps the lubricating oil in the oil storage tank 38 into the first lubrication groove and the second lubrication groove through the oil guide pipe 39 to reduce the friction at the joint of the rotating shaft 15 and the rotating shaft 20;

[0059] Step 6: When the workpiece is cold headed, the motor built into the two offset sliders 40 is started to drive the offset gear 42 to rotate, and the offset gear 42 is meshed with the transmission tooth grooves on the front and rear sides of the fixed block 41 to drive, so that the two offset sliders 40 move to the left and right sides at the front and rear sides of the fixed block 41, respectively, so that when the left regulating unit 2 and the clamping unit 3 clamp and feed the workpiece, the right regulating unit 2 and the clamping unit 3 can synchronously clamp the workpiece for cold headed processing;

[0060] Step 7: After the processing is completed, start the micro-cooling device in the connecting plate 30 to reduce the temperature of the shape memory pad 31 to restore its initial hardness and shape, release the electromagnetic adsorption sheet, retract the flexible adsorption block 35, rotate and open the rotating limit frame 1 36 and the rotating limit frame 2 37, control the movement of the clamping unit 3, and unload the processed workpiece.

[0061] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The flip clamping mechanism is suitable for cold heading equipment, characterized in that: The invention comprises a mounting unit (1), wherein a regulating unit (2) is arranged on the top of the mounting unit (1), and a clamping unit (3) is arranged on the front and rear sides of the regulating unit (2); the regulating unit (2) comprises a fixing frame (4), a driving screw rod (5) and a regulating slider (6), wherein the fixing frames (4) are fixedly arranged on both sides of the top of the mounting unit (1), and the driving screw rods (5) are rotatably arranged on the front and rear sides of the two fixing frames (4), and a regulating slider (6) is slidably arranged on the top of the mounting unit (1), and the front and rear sides of the regulating slider (6) are arranged with matching threaded holes (7), and the insides of the two matching threaded holes (7) are respectively connected to the two driving screw rods (5) and the two driving screw rods (5) are ... The surface of the movable screw rod (5) is threadedly connected; a regulating drive frame (9) is fixedly arranged on the right side of the fixed frame (4) located on the right side, and a regulating motor (8) is fixedly arranged on the right side of the regulating drive frame (9); the right ends of the two driving screw rods (5) extend into the interior of the regulating drive frame (9) and are rotatably connected to one side of the inner wall of the regulating drive frame (9); the left end of the output shaft of the regulating motor (8) extends into the interior of the regulating drive frame (9); the left end of the regulating motor (8) and the right ends of the two driving screw rods (5) are fixedly arranged with a driving gear (10); the tooth surfaces of the three driving gears (10) are transmission-connected via a transmission chain (11).

2. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 1 is characterized in that: The front and rear sides of the top of the regulating slider (6) are both slidably provided with offset sliders (40), the interiors of the two offset sliders (40) are both fixedly provided with first servo electric cylinders (12), the top ends of the driving shafts of the two first servo electric cylinders (12) are fixedly provided with connecting frames (13), the interiors of the two connecting frames (13) are both rotatably provided with rotating sleeves (14) and rotating shafts (15), the surfaces of the two rotating shafts (15) are respectively fixedly connected to the interiors of the two rotating sleeves (14), the sides of the two connecting frames (13) are both fixedly provided with first rotating motors (16), and one end of the output shafts of the two first rotating motors (16) are respectively fixedly connected to the interiors of the two rotating shafts (15).

3. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 2 is characterized in that: A second servo electric cylinder (17) is fixedly arranged on the surface of the two rotating sleeves (14), a connecting frame (18) is fixedly arranged on one end of the driving shaft of the two second servo electric cylinders (17), a rotating shaft (20) and a rotating frame (19) are rotatably arranged inside the two connecting frames (18), the surfaces of the two rotating shafts (20) are fixedly connected to the inside of the two rotating frames (19), a second rotating motor (21) is fixedly arranged on one side of the two connecting frames (18), and one end of the output shaft of the two second rotating motors (21) is fixedly connected to the inside of the two rotating shafts (20) respectively.

4. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 3 is characterized in that: An electrically controlled rotating shaft (22) is rotatably arranged on one side of the two rotating frames (19), a third servo electric cylinder (23) is fixedly arranged on the surface of the two electrically controlled rotating shafts (22), a rotating disk (24) is fixedly arranged at the bottom end of the driving shaft of the two third servo electric cylinders (23), and the bottoms of the two rotating disks (24) are respectively connected to the tops of the two clamping units (3).

5. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 1 is characterized in that: The clamping unit (3) comprises a material clamping mounting frame (25), the top of the material clamping mounting frame (25) is rotatably connected to the bottom of the rotating disk 1 (24), the front and rear sides of the bottom of the material clamping mounting frame (25) are fixedly provided with linear slides (26), the left and right sides of the bottoms of the two linear slides (26) are fixedly provided with control slides (27), the opposite sides of the two control slides (27) are provided with extension slides (28) that slide up and down through electric sliders, the opposite sides of the two extension slides (28) are fixedly provided with a rotating disk 2 (29), the opposite sides of the two rotating disks 2 (29) are rotatably provided with connecting plates (30), the opposite sides of the two connecting plates (30) are rotatably provided with shape memory pads (31), and the shape memory pads (31) are made of thermo-induced shape memory polymer.

6. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 5, characterized in that: Fourth servo electric cylinders (32) are fixedly arranged on both sides of the top of the clamping mounting frame (25); a lifting frame (33) is movably arranged at the bottom of the clamping mounting frame (25); both sides of the top of the lifting frame (33) are respectively fixedly connected to the bottom ends of the driving shafts of the two fourth servo electric cylinders (32); three flexible adsorption blocks (35) are movably arranged at the bottom of the lifting frame (33); a plurality of micro electric cylinders (34) are fixedly arranged at the bottom of the lifting frame (33); the bottom ends of the driving shafts of the plurality of micro electric cylinders (34) are respectively fixedly connected to the tops of the three flexible adsorption blocks (35); and electromagnetic adsorption sheets are embedded in the bottoms of the three flexible adsorption blocks (35).

7. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 5, characterized in that: The front and rear sides of the material clamping mounting frame (25) are both provided with a rotation limit frame (36) which is rotated by an electric control shaft, and one side of the two rotation limit frames (36) is both provided with a rotation limit frame (37) which is rotated by an electric control shaft.

8. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 2, characterized in that: An oil storage tank (38) is fixedly provided on one side of the two offset sliding blocks (40), and two oil guide pipes (39) are provided inside the two oil storage tanks (38) through a micro oil pump, and one end of the two oil guide pipes (39) is respectively connected to a first lubrication groove and a second lubrication groove inside the rotating sleeve (14) and the rotating frame (19).

9. The flipping and clamping mechanism suitable for cold heading forming equipment according to claim 2, characterized in that: A fixed block (41) is fixedly arranged in the middle of the top of the regulating slider (6), and transmission tooth grooves are arranged on the front and rear sides of the fixed block (41). Misaligned gears (42) are rotatably arranged on opposite sides of the two offset sliders (40), and the tooth surfaces of the two offset gears (42) are respectively meshed with the transmission tooth grooves on the front and rear sides of the fixed block (41) for transmission, and one end of the two offset gears (42) is driven to rotate by a motor built into the two offset sliders (40).

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