Multifunctional material shearing and clamping device of cold header

Abstract

The invention relates to the technical field of cold header equipment manufacturing, and particularly discloses a multifunctional material shearing and clamping device of a cold header. The main transmission assembly comprises a main transmission shaft; the clamping assembly comprises a clamping seat, a main clamping arm, an auxiliary clamping arm and a clamping closing driving piece, a first shifting part is arranged on the main clamping arm, a second shifting part is arranged on the auxiliary clamping arm, and the first shifting part movably abuts against the second shifting part; the clamp closing driving piece can drive the main clamping arm and the auxiliary clamping arm to get close to each other. The adjusting assembly comprises a clamp closing adjusting piece, when the clamping force of the main clamping arm and the auxiliary clamping arm is attenuated, the clamp closing adjusting piece can increase the acting force of the clamp closing driving piece on the main clamping arm, and therefore the clamping force is adjusted in real time. The clamping device has the effects that the clamping force is adjusted in real time, the stable operation of equipment is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cold heading machine equipment manufacturing, and in particular to a multifunctional material shearing and clamping device for a cold heading machine. Background Art

[0002] As a commonly used metal forming equipment, cold heading machine applies high pressure to metal blanks to make them plastically deform in the mold, thereby manufacturing parts with high dimensional accuracy and complex structure. This processing method has been widely used in the fields of automobiles, machinery, aviation, etc. Its advantages of high efficiency and high precision provide reliable guarantees for mass production. At the same time, with the continuous improvement of industrial automation level and environmental protection requirements, cold heading processing has put forward higher requirements for process accuracy, production efficiency and material utilization, which has prompted the equipment to continue to develop in the direction of integration and multi-function.

[0003] The invention with publication number 202111523799.9 in the related technology discloses a high-speed cold heading machine, which includes a bed, a main transmission mechanism, a slider, a forming mold and a cutting mechanism. The slider slides in the bed, and the main transmission mechanism includes a crankshaft, a crank connecting rod, a first transmission rod, a second transmission rod and a third transmission rod. The crankshaft is installed on the bed, the crank connecting rod is hinged to the eccentric part of the crankshaft, and the other end of the crank connecting rod is hinged to the slider. One end of the first transmission rod is hinged to the crank connecting rod through a first rotating shaft. The first transmission rod is on the outside of the bed, and a first gear plate is installed on the rear side of the crankshaft. One end of the second transmission rod is fixed on the first gear plate, and a second gear plate is provided under the first gear plate. The second gear plate is meshed with the first gear plate for transmission, and the third transmission rod is installed on the second gear plate.

[0004] However, in the actual shearing process, under the conditions of long-term high-pressure impact and continuous operation, the clamping mechanism is very likely to weaken due to component wear or loosening of the clamping connection structure, which in turn causes the blank to be unstable in the mold and affects the forming effect. Summary of the invention

[0005] The present application provides a multifunctional material shearing and clamping device for a cold heading machine, which can monitor and feedback the clamping force of the clamping mechanism in real time to avoid attenuation of the clamping force due to wear of the clamping mechanism or loose connection structure, thereby ensuring stable and efficient operation of the equipment.

[0006] The multifunctional material shearing and clamping device of a cold heading machine provided in the present application adopts the following technical solution: A multifunctional material shearing and clamping device for a cold heading machine, comprising: body; A main transmission assembly, the main transmission assembly comprising a main transmission shaft, the main transmission shaft being rotatably disposed on the fuselage; The clamping assembly comprises a clamping seat, a main clamping arm, a secondary clamping arm and a clamping closing driving member, the clamping seat is slidably arranged on the fuselage, the main clamping arm and the secondary clamping arm are both rotatably arranged on the clamping seat, the main clamping arm and the secondary clamping arm are arranged opposite to each other, the main clamping arm is provided with a first toggle part, the first toggle part is provided with a rounded corner, the secondary clamping arm is provided with a second toggle part, the first toggle part and the second toggle part are movably abutted; the clamping closing driving member is arranged on the clamping seat, and the clamping closing driving member can drive the main clamping arm and the secondary clamping arm to approach each other; An adjustment component, wherein the adjustment component includes a closing clamp adjustment member, wherein the closing clamp adjustment member is arranged on the fuselage, wherein the closing clamp adjustment member is transmission-connected to the closing clamp driving member, wherein the closing clamp adjustment member can act on the closing clamp driving member, and when the clamping force between the main clamping arm and the auxiliary clamping arm is attenuated, the closing clamp adjustment member can increase the force of the closing clamp driving member on the main clamping arm, thereby realizing real-time adjustment of the clamping force.

[0007] By adopting the above technical scheme, the main clamping arm and the auxiliary clamping arm are driven to approach each other by the provided closing clamping driving member, so as to realize the clamping of the blank, and the closing clamping adjusting member provided on the machine body can make timely response to the change of the clamping force. If the main clamping arm and the auxiliary clamping arm are loosened or worn due to long-term high-pressure impact and continuous operation, thereby causing the clamping force to decay, the provided closing clamping adjusting member can adjust the closing clamping driving member based on this, monitor and adjust the force of the closing clamping driving member on the main clamping arm in real time, so as to ensure the stability of the clamping force, thereby forming a closed-loop feedback adjustment system, ensuring that the clamping force is maintained at a preset high level, so that the blank can always be stably clamped, and the blank can be prevented from shifting or falling due to insufficient clamping force.

[0008] Optionally, it also includes a feeding assembly, which includes a feeding cam, a feeding slide rod and a feeding arm, a motor is arranged on the fuselage, the output end of the motor is fixedly connected to one end of the main transmission shaft, the feeding cam is fixedly mounted on the main transmission shaft, the feeding slide rod is slidably passed through the fuselage, a mounting seat is provided at one end of the feeding slide rod, the clamping seat is fixedly connected to the mounting seat, a feeding rotating part is fixedly provided on the feeding arm, the feeding arm is rotatably arranged on the fuselage through the feeding rotating part, one end of the feeding arm is rotatably connected to one end of the feeding slide rod away from the mounting seat, and the other end of the feeding arm is movably abutted against the feeding cam.

[0009] By adopting the above technical solution, the feeding cam is connected to the main transmission shaft, and the feeding slide rod is driven to slide as the main transmission shaft rotates, thereby realizing the movement of the clamping seat, so that it can deliver the sheared blank to the mold, avoiding the problem of unstable feeding position of the sheared blank caused by positioning error, and improving the overall production accuracy.

[0010] Optionally, the clamping assembly also includes an opening and clamping driving member, which includes a clamping cam, a sleeve, a lifting rod and a pressing arm. The clamping cam is configured in a cone shape and is disposed on the main transmission shaft. The sleeve is fixedly disposed on the fuselage. The lifting rod is slidably disposed on the sleeve. A fourth roller is rotatably disposed at one end of the lifting rod, and the fourth roller is movably abutted against the clamping cam. The pressing arm is rotatably disposed on the fuselage. A pressing rod is fixedly disposed at one end of the pressing arm, and the pressing rod is movably abutted against one end of the main clamping arm. One end of the pressing arm is movably abutted against one end of the main clamping arm, and one end of the pressing arm away from the pressing rod is movably abutted against one end of the lifting rod away from the fourth roller. By adopting the above technical solution, the rotational motion of the main transmission shaft is converted into a smooth lifting and lowering motion of the lifting rod through the cooperation of the clamping cam and the fourth roller, thereby realizing the opening and clamping action of the clamping arm, and avoiding uneven opening of the clamping arm due to unbalanced or too fast movement, thereby causing blank positioning errors.

[0011] Optionally, the closing clamp drive member includes a closing clamp pin and a clamping spring, the clamping seat is provided with a receiving groove, the closing clamp pin is slidably arranged in the receiving groove, and one end of the closing clamp pin extends out of the receiving groove, and the other end of the closing clamp pin is fixedly provided with an extension portion, a step surface is formed at the connection between the extension portion and the closing clamp pin, and the extension portion extends out of the receiving groove away from the end of the closing clamp pin, a partition plate is slidably arranged on the extension portion, the partition plate is slidably arranged in the receiving groove, the partition plate divides the receiving groove into two independent chambers, the two chambers are respectively arranged as an installation chamber and a pressurized chamber, the pressurized chamber is filled with hydraulic oil, the clamping spring is arranged in the installation chamber, the clamping spring is sleeved on the extension portion, one end of the clamping spring is connected to the step surface, and the clamping spring is connected to the partition plate.

[0012] By adopting the above technical solution, when the pressing rod contacts the main clamp, the closing clamp pin will be under the action of the clamping spring, and the main clamping arm and the auxiliary clamping arm will approach each other and clamp the blank, and a partition plate is provided in the receiving groove. By changing the amount of hydraulic oil in the pressurized chamber, the elastic coefficient of the clamping spring can be indirectly changed, thereby increasing the force of the closing clamp pin on the main clamping arm, effectively balancing the influence of external load changes on the clamping force, so that the clamping system can adapt to different working conditions and maintain efficient and stable performance.

[0013] Optionally, the closing clamp adjustment member includes a hydraulic piston and a connecting pipe, the hydraulic piston is arranged on the fuselage, and the hydraulic piston is located at the end of the pressing arm away from the pressing rod, a visual window is opened on the hydraulic piston, and a scale is set on the visual window, one end of the connecting pipe is connected to the hydraulic piston, and the other end of the connecting pipe is connected to the pressurized chamber, and a one-way valve is set on the connecting pipe.

[0014] By adopting the above technical solution, the setting of the hydraulic piston provides a power source for the change of the pressurized chamber, and when the closing clamp driving member drives the main clamping arm and the auxiliary clamping arm to approach each other, if the main clamping arm and the auxiliary clamping arm are loosened or worn due to long-term high-pressure impact and continuous operation, thereby causing the clamping force to decay, the hydraulic oil discharged from the first hydraulic cylinder will increase, and the setting adjustment component can adjust the position of the clamping cam on the main transmission shaft, so that the pressing arm squeezes the hydraulic piston, and the hydraulic piston injects hydraulic oil into the pressurized chamber, thereby realizing real-time adjustment of the clamping force to ensure that the clamping force is always in the best state. In addition, a visual window and a scale are set on the hydraulic piston, so that during daily use, the operator can observe in real time whether the clamping force of the clamping assembly is attenuated or the degree of attenuation, thereby improving the overall real-time feedback performance of the equipment and ensuring production efficiency.

[0015] Optionally, the adjustment component also includes a first hydraulic cylinder, which is fixed on the clamping seat, and is coaxially arranged with the closing pin. A first piston block is slidably arranged in the first hydraulic cylinder, and the first piston block separates the first hydraulic cylinder into two independent chambers, which are respectively arranged as a first chamber and a second chamber. Hydraulic oil is injected into the first hydraulic cylinder, and one end of the extension portion extends out of the first chamber and is fixedly connected to the first piston block.

[0016] By adopting the above technical solution and utilizing the first hydraulic cylinder, the distance change between the main clamping arm and the auxiliary clamping arm can be flexibly converted into the amount of hydraulic oil squeezed out of the first hydraulic cylinder each time. Each relative displacement between the main clamping arm and the auxiliary clamping arm will directly affect the discharge amount of the hydraulic oil in the hydraulic cylinder. In this way, the change of the clamping force can be dynamically displayed in real time to facilitate subsequent adjustments.

[0017] Optionally, the adjusting assembly also includes a second hydraulic cylinder, a mounting portion is fixedly provided on the fuselage, one end of the second hydraulic cylinder is fixedly provided on the mounting portion, a second piston block is slidably provided in the second hydraulic cylinder, a piston rod is fixedly provided on the second piston block, the piston rod is slidably passed through the second hydraulic cylinder, the end of the piston rod away from the second piston block is connected to the clamping cam, the second piston block separates the second hydraulic cylinder into two independent chambers, the two independent chambers are respectively set as a third chamber and a fourth chamber, a first liquid guide tube and a second liquid guide tube are provided on the second hydraulic cylinder, one end of the first liquid guide tube is connected to the third chamber, the other end of the first liquid guide tube is connected to the first chamber, one end of the second liquid guide tube is connected to the fourth chamber, and the other end of the second liquid guide tube is connected to the second chamber.

[0018] By adopting the above technical solution, the second hydraulic cylinder is connected to the first hydraulic cylinder, so that the change of the clamping force can be directly controlled, that is, each relative displacement between the main clamping arm and the auxiliary clamping arm is driven by the hydraulic oil discharged by the first hydraulic cylinder to drive the piston of the second hydraulic cylinder to move, thereby indirectly controlling the position of the clamping cam and realizing automatic matching of the clamping force and the working condition of the equipment.

[0019] Optionally, the adjusting component also includes a return spring, a limit strip is fixedly provided on the main transmission shaft, a limit slot is provided on the clamping cam, the limit strip is slidably connected to the limit slot, the clamping cam is slidably arranged on the main transmission shaft, a fixed plate is fixedly provided on the main transmission shaft, the fixed plate is located on one side of the clamping cam, the return spring is arranged on the fixed plate, one end of the return spring is fixedly connected to the fixed plate, and the other end of the return spring is fixedly connected to the clamping cam.

[0020] By adopting the above technical solution, the setting of the limit strip and the limit slide groove can effectively prevent the clamping cam from circumferential displacement, thereby ensuring the transmission accuracy; at the same time, the setting of the reset spring enables the clamping cam to avoid rigid collision during the adjustment process, and cooperates with the second hydraulic cylinder, which is not easy to cause axial displacement, effectively extending the service life.

[0021] Optionally, a limiting rod is provided at the end of the piston rod away from the second hydraulic cylinder, a yielding ring groove is provided on the clamping cam, one end of the limiting rod is telescopically arranged with the end of the piston rod away from the second hydraulic cylinder, and a limiting part is fixed at the other end of the limiting rod, and the limiting part is slidably arranged in the yielding ring groove.

[0022] By adopting the above technical solution, the setting of the limit rod allows a certain degree of telescopic freedom between the piston rod and the clamping cam, avoiding stress concentration caused by rigid connection, so as to meet the position changes under different working conditions and improve the reliability and durability of the system.

[0023] Optionally, it also includes a shearing assembly, which includes a first shearing cam, a second shearing cam, a shearing sliding rod, a shearing knife, a first shearing arm and a second shearing arm, the first shearing cam and the second shearing cam are both fixedly arranged on the main transmission shaft, the shearing sliding rod is slidably passed through the fuselage, a knife holder is fixedly arranged at one end of the shearing sliding rod, the shearing knife is fixedly arranged on the knife holder, a first shearing rotating part is fixedly arranged on the first shearing arm, the first shearing arm is rotatably arranged on the fuselage through the first shearing rotating part, a second shearing rotating part is fixedly arranged on the second shearing arm, and the second shearing arm is rotated through the first shearing rotating part. The second shearing rotating part is rotatably set on the fuselage, the first shearing arm is located at one side of the second shearing arm, a first roller is rotatably set at one end of the first shearing arm, the first roller is movably abutted with the first shearing cam, an abutment rod is set at the other end of the first shearing arm, a second roller is rotatably set at one end of the second shearing arm, the second roller is movably abutted with the second shearing cam, the other end of the second shearing arm is connected to the end of the shearing sliding rod away from the tool holder, and an abutment stud is set on the second shearing arm, and the abutment stud is abutted with the end of the abutment rod away from the first shearing arm.

[0024] By adopting the above technical solution, the shearing arm is driven by a double cam to realize the movement of the shearing knife, and the setting of the double cam makes the shearing action more coordinated, effectively improving the shearing accuracy and work efficiency. In addition, the shearing knife is reset by the linkage setting of the double cam and the first shearing arm. Compared with the traditional reset method using a spring, this mechanical linkage method has higher reliability and durability, and extends the service life of the equipment.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the closing clamp driving member drives the main clamping arm and the auxiliary clamping arm to approach each other, the first hydraulic cylinder arranged on the closing clamp driving member will discharge a certain amount of hydraulic oil, and the discharged hydraulic oil can just reflect the change in the distance between the main clamping arm and the auxiliary clamping arm. If the main clamping arm and the auxiliary clamping arm are loosened or worn due to long-term high-pressure impact and continuous operation, thereby causing the clamping force to decay, then the hydraulic oil discharged by the first hydraulic cylinder will increase, and the increased hydraulic oil will drive the clamping cam to slide on the main transmission shaft, thereby increasing the hydraulic pressure in the pressurized chamber through the pressurized hydraulic piston, and indirectly increasing the elastic coefficient of the clamping spring, thereby effectively compensating for the wear of components caused by long-term high-pressure impact or continuous operation, and the attenuation of the clamping force caused by the loosening of the clamping connection structure, ensuring that the clamping force is maintained at a preset high The horizontal position of the workpiece can always stably clamp the workpiece, preventing the workpiece from shifting or falling due to insufficient clamping force. Compared with the traditional hydraulic clamp, although the traditional hydraulic clamp has a more direct clamping effect, in the case of continuous high-pressure impact or continuous operation, once the clamping claws of the traditional hydraulic clamp are worn or the connection is loose, the traditional hydraulic clamp cannot adjust the clamping force in real time. Instead, it is only after a problem occurs that the clamping force is attenuated. At the same time, the traditional hydraulic clamp is a precision instrument. Once damaged, it is not easy to repair, which will increase the maintenance cost, lengthen the production cycle, and reduce the production efficiency. Through this technical solution, not only can the clamping force be kept stable and the clamping force attenuation be responded to in real time, but the service life of the equipment can be limitedly extended to ensure production efficiency. 2. Through the first hydraulic cylinder arranged on the clamping seat and the second hydraulic cylinder arranged on one side of the clamping cam, the distance change between the main clamping arm and the auxiliary clamping arm is flexibly converted into the amount of hydraulic oil squeezed out of the first hydraulic cylinder each time. Each relative displacement between the main clamping arm and the auxiliary clamping arm will directly affect the discharge amount of hydraulic oil in the hydraulic cylinder, so that the change of clamping force can be dynamically displayed in real time. At the same time, this discharge amount directly affects the position between the clamping cam and the fourth roller, thus forming a closed-loop feedback adjustment system, which can monitor and adjust the action of the closed clamping drive member in real time; in addition, a visual window and a scale are arranged on the hydraulic piston, so that in daily use, the operator can observe in real time whether the clamping force of the clamping assembly is attenuated or the degree of attenuation, thereby improving the overall real-time feedback performance of the equipment and ensuring production efficiency; 3. The double cam is used to drive the shear arm to realize the movement of the shear knife. The double cam setting makes the shearing action more coordinated, effectively improving the shearing accuracy and work efficiency. In addition, the double cam and the first shear arm are linked to realize the reset of the shear knife. Compared with the traditional reset method using springs, this mechanical linkage method has higher reliability and durability, and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the shearing and feeding device of an embodiment of the present application.

[0027] Figure 2 It is a partial structural schematic diagram of the shearing and feeding device of the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the structure of the shearing assembly in the embodiment of the present application.

[0029] Figure 4 It is a structural schematic diagram of the first shearing cam in an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the structure of the second shearing cam in the embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the overall structure of the feeding assembly in the embodiment of the present application.

[0032] Figure 7 It is a schematic diagram of the overall structure of the clamping drive member in the embodiment of the present application.

[0033] Figure 8 yes Figure 7 Schematic diagram of the enlarged portion B.

[0034] Fig. 9 yes Figure 6 Enlarged schematic diagram of part A.

[0035] Figure numerals: 1, fuselage; 11, mounting portion; 12, mounting groove; 2, main transmission assembly; 21, main transmission shaft; 211, limit strip; 22, motor; 3, clamping assembly; 31, clamping seat; 311, receiving groove; 3111, mounting chamber; 3112, pressurizing chamber; 32, main clamping arm; 321, first toggle portion; 33, auxiliary clamping arm; 331, second toggle portion; 34, closing clamp driving member; 341, closing clamp pin; 3411, extension portion; 342, pressing spring; 343, partition plate ; 35, clamping drive member; 351, clamping cam; 3511, yielding ring groove; 352, sleeve; 353, lifting rod; 354, pressing arm; 355, fourth roller; 356, pressing rod; 4, adjustment assembly; 41, clamping adjustment member; 411, hydraulic piston; 412, connecting pipe; 413, one-way valve; 42, first hydraulic cylinder; 421, first piston block; 422, first chamber; 423, second chamber; 43, second hydraulic cylinder; 431, second piston block; 432, piston rod; 4 33. Third chamber; 434. Fourth chamber; 44. First liquid guide tube; 45. Second liquid guide tube; 46. Return spring; 47. Fixed plate; 48. Limit rod; 481. Limit part; 5. Feeding assembly; 51. Feeding cam; 52. Feeding sliding rod; 53. Feeding arm; 521. Mounting seat; 531. Feeding rotating part; 54. Third roller; 6. Shearing assembly; 61. First shearing cam; 611. Connecting part; 612. First near-resting circle segment; 613. First pushing section; 614. First The far rest circle segment; 615, the first return segment; 62, the second shearing cam; 621, the second near rest circle segment; 622, the second push segment; 623, the second far rest circle segment; 624, the second return segment; 63, the shearing sliding rod; 64, the shearing knife; 65, the first shearing arm; 66, the second shearing arm; 631, the knife holder; 651, the first shearing rotating part; 661, the second shearing rotating part; 652, the first roller; 67, the abutment rod; 662, the second roller; 68, the abutment stud; 69, the rotating shaft. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-9 This application is described in further detail.

[0037] The embodiment of the present application discloses a multifunctional material shearing and clamping device for a cold heading machine.

[0038] Reference Figure 1The multifunctional shearing and clamping device of the cold heading machine includes a machine body 1, a main transmission assembly 2, a shearing assembly 6, a feeding assembly 5, a clamping assembly 3 and an adjusting assembly 4. The main transmission assembly 2, the shearing assembly 6, the feeding assembly 5 and the adjusting assembly 4 are all installed on the machine body 1, the main transmission assembly 2 is located on one side of the machine body 1, and the main transmission assembly 2 is located below the shearing assembly 6, the clamping assembly 3 is located on one side of the shearing assembly 6, and the feeding assembly 5 is located between the shearing assembly 6 and the clamping assembly 3.

[0039] The fuselage 1 serves as the installation base of the entire shearing and clamping device, and the main transmission member can simultaneously transmit the outer end power to the shearing component 6, the feeding component 5 and the clamping component 3; the shearing component 6 can quickly cut out the cold heading blank; the feeding component 5 can feed the sheared blank into the cold heading die; the clamping component 3 can stably clamp the sheared blank, and cooperate with the feeding component 5 to feed the blank into the cold heading die; the adjusting component 4 can check that there is no clamping force attenuation in the clamping component 3, and can ensure that the clamping component 3 has a stable clamping force by acting on the clamping component 3.

[0040] Reference Figure 2 In the embodiment of the present application, a mounting groove 12 for cold heading forming is provided on the fuselage 1, a die base is embedded on the inner wall of the mounting groove 12, an annular shearing knife seat and a stamping die are embedded on the die base, and a conveying mechanism for conveying wire material is also provided on the fuselage 1, and the conveying mechanism can pass the wire material as the raw material through the shearing knife seat and enter the shearing component 6.

[0041] Reference Figure 1 and Figure 2 In the embodiment of the present application, the main transmission assembly 2 includes a main transmission shaft 21 and a motor 22. A plurality of first support seats are fixedly provided on one side of the width direction of the fuselage 1. The main transmission shaft 21 is rotatably arranged on the fuselage 1 through the first support seats. A bearing is also arranged between the main transmission shaft 21 and the first support seats, and the bearing sleeve is arranged on the main transmission shaft 21. The motor 22 is fixedly provided on the first support seat, and the output end of the motor 22 is fixedly connected to one end of the main transmission shaft 21.

[0042] Reference Figure 3 In the embodiment of the present application, the shearing assembly 6 includes a first shearing cam 61, a second shearing cam 62, a shearing sliding rod 63, a shearing knife 64, a first shearing arm 65, a second shearing arm 66, and an abutting stud 68. The first shearing cam 61 and the second shearing cam 62 are coaxially fixed on the main transmission shaft 21. A connecting portion 611 is fixedly provided on one side of the first shearing cam 61. An end of the connecting portion 611 away from the first shearing cam 61 is fixedly connected to the second shearing cam 62. The first shearing cam 61 is fixedly connected to the second shearing cam 62 via the connecting portion 611, and the first shearing cam 61 and the second shearing cam 62 are staggered.

[0043] Reference Figure 3 , Figure 4 and Figure 5 , the outer contour of the first shearing cam 61 is respectively set to the first near rest circle segment 612, the first push segment 613, the first far rest circle segment 614 and the first return segment 615, wherein the first near rest circle segment 612 is an arc segment centered on the minimum radius on the first shearing cam 61, the first push segment 613 is a curve segment from the minimum radius to the maximum radius on the first shearing cam 61, the first far rest circle segment 614 is an arc segment centered on the maximum radius on the first shearing cam 61, and the first return segment 615 is a curve segment from the maximum radius to the minimum radius on the first shearing cam 61. Similarly, the outer contour of the second shearing cam 62 is respectively set to the second near rest circle segment 621, the second push segment 622, the second far rest circle segment 623 and the second return segment 624.

[0044] The first near rest circle segment 612 and the second near rest circle segment 621 have the same radius, the first far rest circle segment 614 and the second far rest circle segment 623 have the same radius, the length of the first far rest circle segment 614 is much larger than the length of the second far rest circle segment 623, the first push segment 613 and the second push segment 622 are arranged at an acute angle to each other, and the first return segment 615 and the second return segment 624 are arranged at an obtuse angle to each other.

[0045] The shearing sliding rod 63 is slidably arranged on the fuselage 1, and one end of the shearing sliding rod 63 extends into the mounting groove 12. A knife holder 631 is fixedly arranged at one end of the shearing sliding rod 63 located in the mounting groove 12, and a hinge is arranged at the other end of the shearing sliding rod 63. The shearing knife 64 is fixedly arranged on the knife holder 631, and the shearing knife 64 is arranged as a circular knife.

[0046] Two groups of second support seats are fixedly provided on the outer wall of the fuselage 1, and the rotating shaft 69 is rotatably mounted on the fuselage 1 through the two groups of second support seats. The first shearing arm 65 is provided with a first shearing rotating portion 651 on the outer wall along its own length direction, and the first shearing rotating portion 651 is rotatably connected to the rotating shaft 69. The first shearing arm 65 is rotatably set on the fuselage 1 through the first shearing rotating portion 651. The second shearing arm 66 is provided with a second shearing rotating portion 661, and the second shearing rotating portion 661 is rotatably connected to the rotating shaft 69. The second shearing arm 66 is rotatably set on the fuselage 1 through the second shearing rotating portion 661. The first shearing arm 65 is located on one side of the second shearing arm 66, and the first shearing arm 65 and the second shearing arm 66 are cross-set.

[0047] A first roller 652 is rotatably provided at one end of the first shearing arm 65, and the first roller 652 is located between the first shearing cam 61 and the fuselage 1, and the first roller 652 is movably abutted against the first shearing cam 61. A contact rod 67 is provided at the other end of the first shearing arm 65, and the contact rod 67 is located on the side of the first shearing arm 65 facing away from the fuselage 1. A thread is provided at one end of the contact rod 67, and the contact rod 67 is threadedly connected to the first shearing arm 65.

[0048] A second roller 662 is rotatably provided at one end of the second shearing arm 66. The second roller 662 is located on the side of the second shearing cam 62 away from the fuselage 1. The second roller 662 is movably abutted against the second shearing cam 62. The other end of the second shearing arm 66 is rotatably connected to one end of the hinged part, and the other end of the hinged part is rotatably connected to the shearing sliding rod 63.

[0049] The second shearing arm 66 is fixed with a mounting portion 11, and an abutting stud 68 is passed through the mounting portion 11 and is threadedly connected to the mounting portion 11. One end of the abutting stud 68 abuts against an end of the abutting rod 67 away from the first shearing arm 65. By adjusting the abutting stud 68 so that the first roller 652 can be stably pressed on the first shearing cam 61, and the second roller 662 can also be stably pressed on the second shearing cam 62, it can be ensured that the torque of the main transmission shaft 21 can be stably transmitted to the first shearing arm 65 and the second shearing arm 66, thereby ensuring the continuity of the shearing action.

[0050] More specifically, when the main transmission shaft 21 drives the first shearing cam 61 and the second shearing cam 62 to rotate, when the second roller 662 is moving from the end of the second push segment 622 to the second far resting circle segment 623, the first roller 652 is moving from the end of the first return segment 615 to the first near resting circle segment 612. At this time, one end of the first shearing arm 65 provided with the first roller 652 and one end of the second shearing arm 66 provided with the second roller 662 are simultaneously swung in a direction away from the fuselage 1, and the other end of the second shearing arm 66 drives the shearing sliding rod 63 to slide in the direction of the mounting groove 12, thereby achieving the shearing knife 6 4 to cut the wire material; when the first roller 652 is moving from the end of the first push section 613 to the first far resting circular section 614, the second roller 662 is moving from the end of the second far resting circular section 623 to the second return section 624. At this time, one end of the first shearing arm 65 provided with the first roller 652 and one end of the second shearing arm 66 provided with the second roller 662 are simultaneously swung toward the direction of the fuselage 1, and the other end of the second shearing arm 66 drives the shearing sliding rod 63 to slide toward the principle installation groove 12, the shearing knife 64 is reset, and the wire material is fed into the circular knife, so that the shearing knife 64 completes a shearing action.

[0051] Reference Figure 6 and Figure 7In the embodiment of the present application, the feeding assembly 5 includes a feeding cam 51, a feeding sliding rod 52, a feeding arm 53 and a tensioning member. The feeding cam 51 is fixed on the main transmission shaft 21. The feeding cam 51 is located on the side of the second shearing cam 62 away from the first shearing cam 61. According to the division of the outer contour of the first shearing cam 61, the outer contour of the feeding cam 51 is similarly set to the third near rest circle segment, the third push stroke segment, the third far rest circle segment and the third return stroke segment.

[0052] The feeding slide rod 52 is slidably arranged on the fuselage 1, and one end of the feeding slide rod 52 extends into the mounting groove 12. A mounting seat 521 is fixedly arranged on one end of the feeding slide rod 52 located in the mounting groove 12, and a connecting seat is fixedly arranged on the other end of the feeding slide rod 52, and a first waist-shaped groove is opened on the connecting seat.

[0053] A feeding rotating part 531 is fixedly provided on the side wall along the length direction of the feeding arm 53, and the feeding rotating part 531 is rotatably connected to the rotating shaft 69. The feeding arm 53 is rotatably set on the fuselage 1 through the feeding rotating part 531. A third roller 54 is rotatably set at one end of the feeding arm 53, and the third roller 54 is movably abutted against the feeding cam 51. A second waist-shaped groove is opened at one end of the feeding arm 53 away from the third roller 54, and a connecting bolt is arranged in the second waist-shaped groove. The feeding arm 53 is fixedly connected to one end of the feeding sliding rod 52 provided with the first waist-shaped groove through the connecting bolt.

[0054] The tensioning member is configured as an elastic telescopic rod, which is fixed on the body 1 , and the telescopic end of the tensioning member is movably in contact with the feeding arm 53 .

[0055] Reference Figure 7 and Figure 8 In the embodiment of the present application, the clamping assembly 3 includes a clamping seat 31, a main clamping arm 32, a secondary clamping arm 33, a closing clamp driving member 34, an opening clamp driving member 35 and a closing clamp adjusting member 41. The clamping seat 31 is fixed on the mounting seat 521. The main clamping arm 32 and the secondary clamping arm 33 are both rotatably arranged on the clamping seat 31. The main clamping arm 32 and the secondary clamping arm 33 are symmetrically arranged along the width direction of the clamping seat 31. A first toggle portion 321 is arranged on the outer wall of the main clamping arm 32 facing the secondary clamping arm 33. A rounded corner is arranged on the end of the first toggle portion 321 away from the main clamping arm 32. A second toggle portion 331 is arranged on the outer wall of the secondary clamping arm 33 facing the main clamping arm 32. The first toggle portion 321 and the second toggle portion 331 are movably abutted against each other.

[0056] A first clamping portion is provided on the main clamping arm 32, and a third waist-shaped groove is opened on the main clamping arm 32 away from the clamping seat 31. The first clamping portion is detachably connected to the end of the main clamping arm 32 away from the clamping seat 31 by bolts, and the third waist-shaped groove can fine-tune the position of the first clamping portion; similarly, a second clamping portion is also provided on the auxiliary clamping arm 33, and the second clamping portion is arranged in the same manner as the first clamping portion.

[0057] The clamping drive member 34 includes a clamping pin 341 and a pressing spring 342. The clamping seat 31 is provided with a receiving groove 311. The clamping pin 341 is slidably arranged in the receiving groove 311, and one end of the clamping pin 341 extends out of the receiving groove 311. The other end of the clamping pin 341 is fixed with an extension portion 3411. A stepped surface is formed at the connection between the extension portion 3411 and the clamping pin 341. The end of the extension portion 3411 away from the clamping pin 341 extends out of the receiving groove 311. A partition is slidably arranged on the extension portion 3411. Plate 343, the partition plate 343 is slidably set in the receiving groove 311, the partition plate 343 divides the receiving groove 311 into two independent chambers, the two chambers are respectively set as the installation chamber 3111 and the pressurizing chamber 3112, the pressurizing chamber 3112 is filled with hydraulic oil, the clamping spring 342 is set in the installation chamber 3111, the clamping spring 342 is sleeved on the extension part 3411, one end of the clamping spring 342 is connected to the step surface, and the clamping spring 342 is connected to the partition plate 343.

[0058] The clamping drive 35 includes a clamping cam 351, a sleeve 352, a lifting rod 353 and a pressing arm 354. The clamping cam 351 is located on the side of the feeding cam 51 away from the second shearing cam 62. The outer peripheral surface of the clamping cam 351 is set as an inclined surface, that is, the area of ​​the clamping cam 351 close to the feeding cam 51 is larger than the area of ​​the other surface of the clamping cam 351.

[0059] According to the division of the outer contour of the first shearing cam 61 , the outer contour of the clamping cam 351 is similarly set to be a fourth near rest circle segment, a fourth push stroke segment, a fourth far rest circle segment and a fourth return stroke segment.

[0060] The sleeve 352 is fixed on the fuselage 1, and the sleeve 352 is located above the clamping cam 351. The lifting rod 353 is slidably penetrated on the sleeve 352. A fourth roller 355 is rotatably provided at one end of the lifting rod 353. The fourth roller 355 is set in a frustum shape and movably abuts against the clamping cam 351.

[0061] A pressing rotating seat is fixedly provided on the fuselage 1, and a pressing arm 354 is rotatably set on the pressing rotating seat, and the pressing arm 354 is located above the lifting rod 353, and the pressing arm 354 is orthogonally arranged with the main clamping arm 32. A pressing rod 356 is fixedly provided at one end of the pressing arm 354, and the pressing rod 356 is arranged parallel to the main clamping arm 32. A pressing roller is provided at one end of the main clamping arm 32 away from the first clamping part, and the pressing rod 356 is movably abutted against the pressing roller, and one end of the pressing arm 354 away from the pressing rod 356 is movably abutted against one end of the lifting rod 353 away from the fourth roller 355.

[0062] More specifically, the main transmission shaft 21 drives the clamping cam 351 to rotate, and the lifting rod 353 will slide back and forth in the sleeve 352. When the fourth roller 355 moves from the fourth push segment of the clamping cam 351 to the fourth far rest circle segment, the end of the lifting rod 353 away from the clamping cam 351 gradually lifts the end of the pressing arm 354 away from the pressing rod 356. The pressing rod 356 presses the main clamping arm 32 downward through the pressing roller, and the closing pin 341 is gradually pressed down, thereby achieving the clamping The clamping drive of component 3; when the fourth roller 355 moves from the end of the fourth far rest circle segment to the fourth return segment, the end of the lifting rod 353 away from the clamping cam 351 gradually moves downward, and the end of the pressing arm 354 away from the pressing rod 356 also gradually falls back. At the same time, the closing pin 341 is pushed upward under the action of the clamping spring 342, and the first clamping part on the main clamping arm 32 and the second clamping part on the auxiliary clamping arm 33 approach each other, thereby realizing the closing drive of the clamping component 3.

[0063] Reference Figure 7 , Figure 8 and Fig. 9 In the embodiment of the present application, the adjustment component 4 includes a first hydraulic cylinder 42, a second hydraulic cylinder 43, a return spring 46 and a clamping adjustment member 41. The first hydraulic cylinder 42 is fixedly mounted on the clamping seat 31. The first hydraulic cylinder 42 is coaxially arranged with the clamping pin 341. A first piston block 421 is slidably arranged in the first hydraulic cylinder 42. The first piston block 421 separates the first hydraulic cylinder 42 into two independent chambers, which are respectively arranged as a first chamber 422 and a second chamber 423. Hydraulic oil is injected into the first hydraulic cylinder 42. One end of the extension portion 3411 away from the clamping pin 341 extends out of the first chamber 422 and is fixedly connected to the first piston block 421.

[0064] A mounting portion 11 is fixedly provided on the fuselage 1, one end of the second hydraulic cylinder 43 is fixedly provided on the mounting portion 11, a second piston block 431 is slidably provided in the second hydraulic cylinder 43, a piston rod 432 is fixedly provided on the second piston block 431, the piston rod 432 is slidably penetrated on the second hydraulic cylinder 43, one end of the piston rod 432 away from the second piston block 431 is connected to the clamping cam 351, the second piston block 431 separates the second hydraulic cylinder 43 into two independent chambers, the two independent chambers are respectively provided as a third chamber 433 and a fourth chamber 434, a first liquid guide tube 44 and a second liquid guide tube 45 are provided on the second hydraulic cylinder 43, one end of the first liquid guide tube 44 is communicated with the third chamber 433, the other end of the first liquid guide tube 44 is communicated with the first chamber 422, one end of the second liquid guide tube 45 is communicated with the fourth chamber 434, and the other end of the second liquid guide tube 45 is communicated with the second chamber 423.

[0065] In more detail, a limit strip 211 is fixedly provided on the main transmission shaft 21, a limit slot is provided on the clamping cam 351, the limit slot is slidably connected to the limit strip 211, and the clamping cam 351 is slidably penetrated on the main transmission shaft 21. A fixing plate 47 is provided between the clamping cam 351 and the feeding cam 51, the fixing plate 47 is fixedly provided on the main transmission shaft 21, a return spring 46 is provided on the fixing plate 47, one end of the return spring 46 is fixedly connected to the fixing plate 47, and the other end of the return spring 46 is fixedly connected to the clamping cam 351, and the initial state of the return spring 46 is a tightened state.

[0066] A limiting rod 48 is provided at the end of the piston rod 432 away from the second hydraulic cylinder 43, and a yielding ring groove 3511 is provided on the side of the clamping cam 351 away from the feeding cam 51. One end of the limiting rod 48 is telescopically arranged with the end of the piston rod 432 away from the second hydraulic cylinder 43, and a limiting portion 481 is fixed at the other end of the limiting rod 48, and the limiting portion 481 is slidably arranged in the yielding ring groove 3511.

[0067] Reference Figure 6 , Figure 7 and Figure 8 In the embodiment of the present application, the closing clamp adjustment member 41 includes a hydraulic piston 411 and a connecting pipe 412. An "L"-shaped mounting plate is fixedly provided on the side of the pressing rotating seat away from the pressing rod 356. The hydraulic piston 411 is fixedly provided on the mounting plate. A visual window is provided on the hydraulic piston 411, so that it is possible to observe in real time whether the clamping force of the clamping assembly 3 is attenuated and the degree of attenuation. The hydraulic piston 411 is located above the pressing arm 354. A connecting pipe 412 is fixedly provided on the hydraulic piston 411. One end of the connecting pipe 412 is connected to the hydraulic piston 411, and the other end of the connecting pipe 412 is connected to the pressurized chamber 3112. A one-way valve 413 is provided on the connecting pipe 412.

[0068] It is worth noting here that, under normal conditions, when the lifting rod 353 lifts one end of the pressing arm 354 away from the pressing rod 356 , the pressing arm 354 cannot form an effective abutment with the telescopic end of the hydraulic piston 411 .

[0069] More specifically, in a normal state, under the action of the clamping spring 342, the clamping pin 341 pushes the main clamping arm 32 upward, and the extension portion 3411 drives the piston block to slide in the first hydraulic cylinder 42, the first chamber 422 is compressed, and the hydraulic oil in the first chamber 422 enters the third chamber 433 through the first liquid guide tube 44, and the second piston block 431 will slide toward the fourth chamber 434, and the piston rod 432 will gradually retract inward. At this time, since the limiting rod 48 and the piston rod 432 are telescopically arranged, and the inward retraction stroke of the piston rod 432 is equal to the telescopic stroke of the limiting rod 48 on the piston rod 432, the clamping cam 351 is limited by the return spring 46, so the position of the clamping cam 351 on the main transmission shaft 21 does not change, and the upward lifting stroke of the lifting rod 353 remains unchanged; In the embodiment of the present application, when the connection of the clamping parts in the clamping assembly 3 becomes loose, the clamping force is attenuated, that is, the matching clearance of the connection in the clamping assembly 3 increases (such as the clearance of the rotating pair or the sliding pair), and this clearance allows the parts to produce additional relative movement outside the original motion constraints. For example, when the rotating pair between the main clamping arm 32 and the clamping seat 31 is loose, the movement amplitude of the main clamping arm 32 increases due to the existence of the clearance; similarly, when the rotating pair between the auxiliary clamping arm 33 and the clamping seat 31 is loose, the movement amplitude of the main clamping arm 32 increases due to the existence of the clearance.

[0070] To sum up, once the movement amplitude of the main clamping arm 32 increases, the upward movement distance of the closing clamp pin 341 will increase, so that the extension portion 3411 drives the sliding stroke of the first piston block 421 in the first hydraulic cylinder 42 to increase accordingly, and the hydraulic oil in the first chamber 422 will have excess hydraulic oil injected into the third chamber 433. At this time, the retraction stroke of the piston rod 432 increases. Since under normal conditions, the inward retraction stroke of the piston rod 432 is equal to the telescopic stroke of the limit rod 48 on the piston rod 432, the piston rod 432 will drive the clamping cam 351 to move away from the feeder through the limit rod 48. The directional sliding of the cam 51 increases the deflection amplitude of the pressing arm 354. During this process, the pressing arm 354 squeezes the telescopic end of the hydraulic piston 411 away from the end of the pressing rod 356, and then the hydraulic oil in the hydraulic piston 411 is injected into the pressurized chamber 3112 through the first liquid guide tube 44. At this time, the closing pin 341 has pressed against one end of the main clamping arm 32 and can no longer move. The partition plate 343 will squeeze the clamping spring 342 toward the side of the installation chamber 3111, directly increasing the elastic effect of the clamping spring 342 relative to the closing pin 341, thereby compensating for the clamping force attenuated by the connecting structure.

[0071] At the same time, the first liquid guide tube 44 is provided with a one-way valve 413, and the hydraulic oil injected into the pressurized chamber 3112 will not be discharged, and the telescopic end of the hydraulic piston 411 will stay at the position when the previous step is completed. Thereafter, if the main clamping arm 32 is not further loosened to cause the movement amplitude to continue to increase, the pressing arm 354 will not be able to form an effective abutment with the telescopic end of the hydraulic piston 411.

[0072] The implementation principle of the multifunctional shearing and clamping device of the cold heading machine of the present application embodiment is as follows: the conveying mechanism delivers the wire material to the shearing knife 64, the starting motor 22 drives the main transmission shaft 21 to rotate, the shearing knife 64 completes the shearing of the wire material under the drive of the first shearing cam 61 and the second shearing cam 62, the clamping assembly 3 clamps the sheared blank, and the blank is delivered to the cold heading die through the feeding assembly 5; During this process, the first piston cylinder 43 arranged on the clamping seat 31 and the second hydraulic cylinder 43 arranged on the fuselage 1 are used to detect whether the clamping force is attenuated. Once the clamping force is attenuated, the clamping cam 351 can be driven by the second hydraulic cylinder 43 to change its position on the main transmission shaft 21, so that the deflection amplitude of the pressing arm 354 increases to squeeze the hydraulic piston 411, and the hydraulic oil in the hydraulic piston 411 is injected into the pressurized chamber 3112, thereby indirectly increasing the elastic coefficient of the clamping spring 342, thereby compensating for the attenuation of the clamping force caused by loose connection structure or wear of clamping parts, thereby ensuring the clamping stability of the clamping assembly 3.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional shearing and clamping device for a cold heading machine, characterized in that: include: Body (1); A main transmission assembly (2), the main transmission assembly (2) comprising a main transmission shaft (21), the main transmission shaft (21) being rotatably disposed on the fuselage (1); A clamping assembly (3), the clamping assembly (3) comprising a clamping seat (31), a main clamping arm (32), a secondary clamping arm (33) and a clamping drive member (34), the clamping seat (31) being slidably disposed on the body (1), the main clamping arm (32) and the secondary clamping arm (33) being rotatably disposed on the clamping seat (31), the main clamping arm (32) and the secondary clamping arm (33) being disposed opposite to each other, the main clamping arm (32) A first toggle portion (321) is provided on the main clamping seat (31), the first toggle portion (321) is provided with a rounded corner, a second toggle portion (331) is provided on the auxiliary clamping arm (33), the first toggle portion (321) and the second toggle portion (331) are movably abutted against each other; the clamp closing driving member (34) is provided on the clamping seat (31), and the clamp closing driving member (34) can drive the main clamping arm (32) and the auxiliary clamping arm (33) to move closer to each other; An adjustment component (4), the adjustment component (4) comprising a closing clamp adjustment member (41), the closing clamp adjustment member (41) being arranged on the body (1), the closing clamp adjustment member (41) being in transmission connection with the closing clamp driving member (34), the closing clamp adjustment member (41) being capable of acting on the closing clamp driving member (34), and when the clamping force of the main clamping arm (32) and the auxiliary clamping arm (33) is attenuated, the closing clamp adjustment member (41) is capable of increasing the force of the closing clamp driving member (34) on the main clamping arm (32), thereby achieving real-time adjustment of the clamping force.

2. The multifunctional material shearing and clamping device of a cold heading machine according to claim 1, characterized in that: The machine body (1) further comprises a feeding assembly (5), the feeding assembly (5) comprising a feeding cam (51), a feeding sliding rod (52) and a feeding arm (53); a motor (22) is arranged on the machine body (1); an output end of the motor (22) is fixedly connected to one end of the main transmission shaft (21); the feeding cam (51) is fixedly arranged on the main transmission shaft (21); the feeding sliding rod (52) is slidably arranged on the machine body (1); and a mounting bracket is arranged on one end of the feeding sliding rod (52). The mounting seat (521) is fixedly connected to the clamping seat (31), and a feeding rotating part (531) is fixedly provided on the feeding arm (53). The feeding arm (53) is rotatably arranged on the machine body (1) through the feeding rotating part (531). One end of the feeding arm (53) is rotatably connected to an end of the feeding sliding rod (52) away from the mounting seat (521), and the other end of the feeding arm (53) is movably abutted against the feeding cam (51).

3. The multifunctional material shearing and clamping device of a cold heading machine according to claim 2, characterized in that: The clamping assembly (3) further comprises a clamping drive member (35), the clamping drive member (35) comprising a clamping cam (351), a sleeve (352), a lifting rod (353) and a pressing arm (354), the clamping cam (351) being arranged in a frustum shape, the clamping cam (351) being arranged on the main transmission shaft (21), the sleeve (352) being fixedly arranged on the fuselage (1), the lifting rod (353) being slidably arranged on the sleeve (352), and one end of the lifting rod (353) being rotatable. A fourth roller (355) is movably arranged thereon, the fourth roller (355) being movably abutted against the clamping cam (351), the pressing arm (354) being rotatably arranged on the fuselage (1), a pressing rod (356) being fixedly arranged at one end of the pressing arm (354), the pressing rod (356) being movably abutted against one end of the main clamping arm (32), and an end of the pressing arm (354) away from the pressing rod (356) being movably abutted against an end of the lifting rod (353) away from the fourth roller (355).

4. The multifunctional material shearing and clamping device of a cold heading machine according to claim 3 is characterized in that: The clamping drive member (34) comprises a clamping pin (341) and a pressing spring (342); a receiving groove (311) is provided on the clamping seat (31); the clamping pin (341) is slidably arranged in the receiving groove (311); one end of the clamping pin (341) extends out of the receiving groove (311); an extension portion (3411) is fixedly arranged on the other end of the clamping pin (341); a stepped surface is formed at the connection between the extension portion (3411) and the clamping pin (341); one end of the extension portion (3411) away from the clamping pin (341) extends out of the receiving groove (311); a sliding spring (342) is provided on the extension portion (3411); A partition plate (343) is provided, wherein the partition plate (343) is slidably arranged in the accommodating groove (311), and the partition plate (343) divides the accommodating groove (311) into two independent chambers, wherein the two chambers are respectively arranged as an installation chamber (3111) and a pressurizing chamber (3112), and the pressurizing chamber (3112) is filled with hydraulic oil, and the clamping spring (342) is arranged in the installation chamber (3111), and the clamping spring (342) is sleeved on the extension portion (3411), and one end of the clamping spring (342) is connected to the stepped surface, and the clamping spring (342) is connected to the partition plate (343).

5. The multifunctional material shearing and clamping device of a cold heading machine according to claim 4, characterized in that: The clamp closing adjustment member (41) comprises a hydraulic piston (411) and a connecting pipe (412); the hydraulic piston (411) is arranged on the body (1), and the hydraulic piston (411) is located at an end of the pressing arm (354) away from the pressing rod (356); a visual window is provided on the hydraulic piston (411), and a scale is provided on the visual window; one end of the connecting pipe (412) is connected to the hydraulic piston (411), and the other end of the connecting pipe (412) is connected to the pressurizing chamber (3112); and a one-way valve (413) is provided on the connecting pipe (412).

6. The multifunctional material shearing and clamping device of a cold heading machine according to claim 4, characterized in that: The adjustment assembly (4) further comprises a first hydraulic cylinder (42), wherein the first hydraulic cylinder (42) is fixedly mounted on the clamping seat (31), the first hydraulic cylinder (42) and the clamp closing pin (341) are coaxially arranged, a first piston block (421) is slidably arranged in the first hydraulic cylinder (42), the first piston block (421) separates the first hydraulic cylinder (42) into two independent chambers, the two independent chambers being respectively arranged as a first chamber (422) and a second chamber (423), hydraulic oil is injected into the first hydraulic cylinder (42), and one end of the extension portion (3411) extends out of the first chamber (422) and is fixedly connected to the first piston block (421).

7. The multifunctional material shearing and clamping device of a cold heading machine according to claim 6, characterized in that: The adjustment assembly (4) further comprises a second hydraulic cylinder (43), a mounting portion (11) is fixedly provided on the body (1), one end of the second hydraulic cylinder (43) is fixedly provided on the mounting portion (11), a second piston block (431) is slidably provided in the second hydraulic cylinder (43), a piston rod (432) is fixedly provided on the second piston block (431), the piston rod (432) is slidably provided on the second hydraulic cylinder (43), one end of the piston rod (432) away from the second piston block (431) is connected to the clamping cam (351), and the second piston block (431) The second hydraulic cylinder (43) is divided into two independent chambers, which are respectively set as a third chamber (433) and a fourth chamber (434). The second hydraulic cylinder (43) is provided with a first liquid guide tube (44) and a second liquid guide tube (45). One end of the first liquid guide tube (44) is connected to the third chamber (433), and the other end of the first liquid guide tube (44) is connected to the first chamber (422). One end of the second liquid guide tube (45) is connected to the fourth chamber (434), and the other end of the second liquid guide tube (45) is connected to the second chamber (423).

8. The multifunctional material shearing and clamping device of a cold heading machine according to claim 7, characterized in that: The adjustment component (4) further comprises a return spring (46); a limit strip (211) is fixedly provided on the main transmission shaft (21); a limit slot is provided on the clamping cam (351); the limit strip (211) is slidably connected to the limit slot; the clamping cam (351) is slidably arranged on the main transmission shaft (21); a fixing plate (47) is fixedly provided on the main transmission shaft (21); the fixing plate (47) is located on one side of the clamping cam (351); the return spring (46) is arranged on the fixing plate (47); one end of the return spring (46) is fixedly connected to the fixing plate (47); and the other end of the return spring (46) is fixedly connected to the clamping cam (351).

9. The multifunctional material shearing and clamping device of a cold heading machine according to claim 7, characterized in that: A limiting rod (48) is provided at one end of the piston rod (432) away from the second hydraulic cylinder (43); a clearance ring groove (3511) is provided on the clamping cam (351); one end of the limiting rod (48) is telescopically arranged with the end of the piston rod (432) away from the second hydraulic cylinder (43); a limiting portion (481) is fixedly arranged at the other end of the limiting rod (48); and the limiting portion (481) is slidably arranged in the clearance ring groove (3511).

10. The multifunctional material shearing and clamping device of a cold heading machine according to claim 1, characterized in that: The machine also comprises a shearing assembly (6), the shearing assembly (6) comprising a first shearing cam (61), a second shearing cam (62), a shearing sliding rod (63), a shearing knife (64), a first shearing arm (65) and a second shearing arm (66), the first shearing cam (61) and the second shearing cam (62) being fixedly mounted on the main transmission shaft (21), the shearing sliding rod (63) being slidably mounted on the machine body (1), a knife holder (631) being fixedly mounted on one end of the shearing sliding rod (63), the shearing knife (64) being fixedly mounted on the knife holder (631), a first shearing rotating portion (651) being fixedly mounted on the first shearing rotating portion (651), the first shearing arm (65) being rotatably mounted on the machine body (1) via the first shearing rotating portion (651), a second shearing rotating portion (661) being fixedly mounted on the second shearing arm (66), and the second shearing arm (66) being connected to the machine body (1) by a screw thread. The second shearing rotating part (661) is rotatably arranged on the body (1), the first shearing arm (65) is located on one side of the second shearing arm (66), a first roller (652) is rotatably arranged at one end of the first shearing arm (65), the first roller (652) is movably abutted against the first shearing cam (61), an abutting rod (67) is arranged at the other end of the first shearing arm (65), a second roller (662) is rotatably arranged at one end of the second shearing arm (66), the second roller (662) is movably abutted against the second shearing cam (62), the other end of the second shearing arm (66) is connected to an end of the shearing sliding rod (63) away from the knife holder (631), and an abutting stud (68) is arranged on the second shearing arm (66), the abutting stud (68) is abutted against an end of the abutting rod (67) away from the first shearing arm (65).

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