Rotary punching machine

Abstract

The invention discloses a rotary punching machine, and belongs to the technical field of punching machines, the rotary punching machine comprises a punching machine base, a rotary driving mechanism is mounted in the punching machine base, and the output end of the rotary driving mechanism is provided with a part chuck mechanism at the top of the punching machine base; a plurality of rolling steel balls are arranged between the bottom of the part chuck mechanism and the top of the punching machine base, a punching supporting mechanism is installed at the bottom of the rear end of the punching machine base, and a side edge extending base is fixedly connected between the top and the bottom of the rear end face of the punching machine base. A rotary supporting wide plate in the part chuck mechanism is designed, abrasion of parts is avoided, discharging can be rapidly completed without driving, the punching efficiency of the punching machine is improved, burrs are reduced after punching by designing a reciprocating punching mechanism, a punching supporting sleeve can be replaced in time after being abraded, and the punching efficiency is improved. And the stamping precision is guaranteed, and meanwhile replacement is very convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of punching machines, and in particular relates to a rotary punching machine. Background Art

[0002] A stamping machine generally refers to a punching machine. In national production, the stamping process has the advantages of saving materials and energy, high efficiency, low technical requirements for operators, and the ability to make products that cannot be achieved by mechanical processing through various mold applications. Therefore, its use is becoming more and more extensive. Stamping production is mainly for plates. Through molds, blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion can be made, etc., which are widely used in various fields. The design principle of the stamping machine is to convert circular motion into linear motion. The main motor outputs power to drive the flywheel, and the clutch drives the gears, crankshafts, connecting rods, etc. to achieve the linear motion of the slider. The movement from the main motor to the connecting rod is circular motion, and then the reciprocating up and down linear motion is used to continuously complete the stamping of parts. Among them, rotary stamping machines mostly refer to the loading and fixing of parts to achieve circular motion, and then reciprocating cycles can be achieved to improve the working efficiency of the stamping machine.

[0003] The existing rotary punching machine has two main ways of fixing parts during use. One is to complete the clamping and fixing through the clamp on the turntable, and the other is to achieve the snap-in fixing through the groove or through hole on the turntable. The former completes the clamping and fixing of the tool during use, and then requires a robotic arm to unload the material. At the same time, for some complex parts, manual clamping is still required. The use of a robotic arm will increase the cost of the punching machine, and manual clamping will reduce the working efficiency of the punching machine. The latter is used to achieve snap-in fixing through grooves or through holes with the same shape as the part, which is convenient and fast for loading and unloading. However, the groove still requires additional drive to remove the part during unloading. The way of clamping parts with through holes can also make the parts fall directly onto the conveyor belt during unloading. The overall loading and unloading is very convenient, but during use, the turntable needs to drive the parts to rotate, and there is friction between the bottom of the part and the contact surface, which will cause damage to the surface of the part. At the same time, there are problems of burrs at the bottom of the punching hole of the part and stress deformation of the overall part during stamping. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a rotary punching machine.

[0005] The technical solution adopted to solve the above technical problems is as follows: Provide a rotary stamping machine, including a stamping machine base. A rotary drive mechanism is installed inside the stamping machine base. The output end of the rotary drive mechanism is provided with a part chuck mechanism on the top of the stamping machine base. The part chuck mechanism includes a circular chuck rotatably connected to the top of the stamping machine base. On one side of the inner wall of each of the multiple grooves on the circular chuck, a fixed support narrow plate is fixedly connected. On the other side of the inner wall of each of the multiple grooves on the circular chuck, a fixed shaft rod is fixedly connected. A rotating support wide plate is rotatably connected to each of the multiple fixed shaft rods. At one end of each of the multiple rotating support wide plates at the bottom of the circular chuck, a strip magnet is fixedly connected. A plurality of rolling steel balls are arranged between the bottom of the circular chuck and the top of the stamping machine base. A stamping support mechanism is installed at the bottom of the rear end of the stamping machine base. The stamping support mechanism includes a driving hydraulic cylinder fixedly connected to the bottom of the rear end of the stamping machine base. The output end of the driving hydraulic cylinder is fixedly connected with a U-shaped connecting rod. The top of the U-shaped connecting rod is fixedly connected with a connecting support sleeve. A stamping support sleeve is installed on the top of the connecting support sleeve. A plurality of bolt assemblies are installed between the connecting support sleeve and the stamping support sleeve. A side extension base is fixedly connected between the top and the bottom of the rear end face of the stamping machine base. A stamping drive mechanism is fixedly connected to the top of the side extension base. A reciprocating stamping mechanism is slidably connected inside the stamping drive mechanism. The reciprocating stamping mechanism includes a connecting top sleeve slidably connected to the bottom of the front end of the stamping drive mechanism. Side limiting sliders are fixedly connected to both sides of the connecting top sleeve. The center of the top of the connecting top sleeve is fixedly connected with a connecting rotating shaft. The center of the inner surface of the top of the connecting top sleeve is fixedly connected with a backing plate. A stamping rod is fixedly connected to the bottom of the backing plate. A return spring is fixedly connected to each corner of the inner surface of the top of the connecting top sleeve. A bottom plate connecting sleeve is fixedly connected between the bottoms of the plurality of return springs. The center of the inner surface of the bottom of the bottom plate connecting sleeve is fixedly connected with a limiting connecting sleeve. A mounting plate is fixedly connected to one side of the bottom of the front end face of the stamping drive mechanism. A driving cylinder is fixedly connected to the front end of the top of the mounting plate. Two parts to be stamped are placed on the part chuck mechanism.

[0006] Further, the stamping machine base includes a support base placed on the ground. A bottom support mounting groove is formed at the bottom of the rear end of the support base. A conveyor belt placement groove is formed on one side of the support base. An inner wall of the conveyor belt placement groove near the center of the support base is provided with a rotary drive mounting groove. A guiding groove is formed at the top of the support base. A trapezoidal stamping hole is formed at the rear end of the top of the support base. Two U-shaped fixing bars are fixedly connected to the inner surface of the top of the bottom support mounting groove. Limiting sliding grooves are formed on one side of the two U-shaped fixing bars close to each other. A bottom connection hole plate is fixedly connected between the bottoms of the two U-shaped fixing bars. A guiding slideway is fixedly connected to the bottom of the bottom connection hole plate.

[0007] Through the above technical solution, the support base plays an overall supporting role, and through the bottom support mounting groove, the conveyor belt placement groove, the rotary drive mounting groove, the guiding groove and the trapezoidal stamping hole, the installation of components, the reserved position for conveying parts, guiding and stamping work are respectively realized. The sliding limit of the connecting support sleeve is realized through the limiting sliding grooves in the two U-shaped fixing bars. And the stamping waste enters the inside of the stamping support sleeve, and then slides to one side through the plastic telescopic sleeve, the bottom connection hole plate and the guiding slideway, which is convenient for collection.

[0008] Further, a plurality of grooves corresponding to rolling steel balls are formed at the bottom of the circular chuck and the top of the support base.

[0009] Through the above technical solution, the plurality of rolling steel balls play a supporting role in the rotation of the circular chuck.

[0010] Further, the rotary drive mechanism includes a first motor fixedly connected to the inner surface of the bottom of the rotary drive mounting groove. An output end of the first motor is fixedly connected with a driving block. A fixed driving block is clamped on the top of the driving block. A plurality of fixed ears are fixedly connected to the outer wall of the top of the fixed driving block. Locking bolts are installed on the plurality of fixed ears.

[0011] Through the above technical solution, the first motor drives the driving block to rotate, and then drives the fixed driving block to rotate. The overall circular chuck is driven to rotate through the square structure at the top of the fixed driving block, realizing the continuous rotation of the circular chuck, and further realizing the continuous feeding and discharging of the parts to be stamped.

[0012] Further, the part chuck mechanism further includes a plurality of installation card slots formed at the center of the top of the circular chuck.

[0013] Through the above technical solution, the part to be stamped is placed on the fixed support narrow plate and the rotating support wide plate at the front end of the circular chuck by manual or mechanical drive, and is clamped and fixed through the formed groove. After stamping, the circular chuck continues to rotate. Due to the special-shaped structure at the top of the support base, the rotating support wide plate disengages and rotates downward under gravity. When it rotates to the maximum value, the rotating support wide plate made of iron material is fixed under the attraction of the bar magnet and will not rebound. Then, the part to be stamped will probably fall directly. It can be collected or a conveyor belt can be installed in the placement groove of the conveyor belt to transport the part to the next step. Finally, during the process of the circular chuck continuing to rotate driven by the rotary drive mechanism, the rotating support wide plate is restricted by the guiding chute and starts to rotate until it reaches the horizontal position, waiting for the placement of the next part to be stamped.

[0014] Further, a plurality of square through holes corresponding to the parts to be stamped are provided on the circular chuck. The guiding groove corresponds to the rotating support wide plate. The plurality of fixed ears and the plurality of installation card slots correspond one by one, and threaded holes corresponding to the locking bolts are further provided at the bottom of the installation card slots.

[0015] Through the above technical solution, the square through holes are used to complete the clamping of the parts to be stamped and to install the rotating support wide plate at the bottom. The guiding groove is used to reset the rotating support wide plate, thereby completing the support for the next part to be stamped. The circular chuck can be conveniently replaced through the locking bolts and the threaded holes, and thus the circular chuck with parts to be stamped of different shapes can be replaced.

[0016] Further, the stamping support mechanism further includes a plastic telescopic sleeve fixedly connected to the bottom of the connecting support sleeve, and limiting blocks are fixedly connected to both sides of the connecting support sleeve.

[0017] Through the above technical solution, the driving hydraulic cylinder drives the U-shaped connecting rod to move upward, thereby driving the connecting support sleeve and the stamping support sleeve to move upward until the top of the stamping support sleeve passes through the trapezoidal stamping hole and the through hole on the rotating support wide plate and is in the same plane as the top of the rotating support wide plate, waiting to complete the stamping work. The plastic telescopic sleeve is used to guide the waste material and can change its length as the connecting support sleeve rises and falls at the same time, and can be replaced in time after the stamping support sleeve is worn.

[0018] Further, the stamping drive mechanism includes a support base plate fixedly connected to the top of the side extension base. The inner wall of the front end of the support base plate is fixedly connected with a limit shell. The top of the limit shell is fixedly connected with a mechanism top shell. The rear end of the support base plate is fixedly connected with a second motor. A rotating shaft is rotatably connected between the two sides of the mechanism top shell. One end of the rotating shaft is fixedly connected with a large gear. The output end of the second motor is fixedly connected with a pulley. A clutch is installed on the outer wall of the mechanism top shell at the other end of the rotating shaft. A transmission belt is installed between the pulley and the clutch. A transmission crankshaft is rotatably connected between the two sides of the limit shell. One end of the transmission crankshaft is fixedly connected with a small gear meshing with the large gear. A rotating transmission rod is rotatably connected to the outer wall of the middle section of the transmission crankshaft.

[0019] Through the above technical solution, the second motor drives the pulley to rotate, drives the rotating shaft to rotate through the transmission belt and the clutch, and the large gear at the other end also rotates accordingly. It drives the small gear and the transmission crankshaft to rotate through meshing with the small gear. The middle section of the transmission crankshaft will drive the rotating transmission rod while making a circular motion, thereby completing the drive of the connecting rotating shaft. Since both ends of the rotating transmission rod complete rotation respectively, when the transmission crankshaft rotates, the connecting rotating shaft will drive the overall reciprocating stamping mechanism to complete the up and down reciprocating motion. When the overall reciprocating stamping mechanism descends, the bottom plate connecting sleeve first contacts the surface of the part to be stamped and stops moving, and then the connecting top sleeve continues to descend and compresses a plurality of return springs until the stamping rod passes through the bottom plate connecting sleeve and the part to be stamped to complete the stamping. Then, with the rotation of the transmission crankshaft, the overall reciprocating stamping mechanism is reset. The waste material from the stamping will enter the inside of the stamping support sleeve, and then slide to one side through the plastic telescopic sleeve, the bottom connecting hole plate and the guiding slideway. Finally, the stamping support sleeve is reset under the drive of the drive hydraulic cylinder.

[0020] Further, connecting bearings are installed between the two ends of the rotating shaft and the transmission crankshaft and the mechanism top shell and the limit shell respectively.

[0021] Through the above technical solution, the connecting bearings play a supporting role in the rotation of the rotating shaft and the transmission crankshaft.

[0022] The beneficial effects of the present invention are as follows: (1) By designing the rotating support wide plate in the part chuck mechanism, the present invention can support the part to be punched when the circular chuck rotates and complete the clamping under the direction through hole on the circular chuck. The rotating support wide plate can prevent the part to be punched from contacting the top of the support base and avoid friction. After punching, the circular chuck continues to rotate. Due to the special-shaped structure on the top of the support base, the rotating support wide plate disengages and rotates downward under gravity. When it rotates to the maximum value, the rotating support wide plate made of iron material is fixed under the attraction of the bar magnet and will not rebound. Then, the part to be punched will probably fall directly. Finally, during the process of the circular chuck continuing to rotate driven by the rotary drive mechanism, the rotating support wide plate is restricted by the guiding slideway and starts to rotate until it reaches the horizontal position, waiting for the placement of the next part to be punched. This not only avoids the wear of the part but also realizes the rapid blanking without driving, improving the punching efficiency of the punching machine; (2) By designing the reciprocating punching mechanism, when the whole reciprocating punching mechanism descends, the bottom plate connecting sleeve first contacts the surface of the part to be punched and stops moving. Then, the connecting top sleeve continues to descend and compresses a plurality of return springs until the punching rod passes through the bottom plate connecting sleeve and the part to be punched to complete the punching. Then, with the rotation of the transmission crankshaft, the whole reciprocating punching mechanism resets. The punching waste will enter the inside of the punching support sleeve, and then slide to one side through the plastic telescopic sleeve, the bottom connecting hole plate and the guiding slideway. Finally, the punching support sleeve is reset driven by the driving hydraulic cylinder. During this process, a certain pressure is applied to the part to be punched by squeezing the bottom plate connecting sleeve with a plurality of return springs to avoid deformation during punching. At the same time, the inner wall of the bottom punching support sleeve fits with the outer wall of the punching rod, reducing the occurrence of burrs after punching. When the punching support sleeve is worn, it can be replaced in time, ensuring the punching accuracy and being very convenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional three-dimensional structural schematic diagram of the present invention; Figure 3 is a sectional structural schematic diagram of the present invention; Figure 4 is a partial structural schematic diagram of the present invention; Figure 5 is a structural schematic diagram of the punching machine base of the present invention; Figure 6 is a structural schematic diagram of the rotary drive mechanism of the present invention; Figure 7 is Figure 3 a partial enlarged view of A in Figure 8 is a three-dimensional structural schematic diagram of the punching support mechanism of the present invention; Figure 9 is a schematic cross-sectional structure diagram of the stamping support mechanism of the present invention; Figure 10 is a schematic three-dimensional structure diagram of the part chuck mechanism of the present invention; Figure 11 is a partial cross-sectional structure diagram of the part chuck mechanism of the present invention; Figure 12 is a schematic bottom structure diagram of the part chuck mechanism of the present invention; Figure 13 is a schematic diagram of a partial structure of the present invention; Figure 14 is a schematic three-dimensional cross-sectional structure diagram of the part chuck mechanism and the reciprocating stamping mechanism of the present invention; Figure 15 is a schematic internal structure diagram of the stamping drive mechanism of the present invention; Figure 16 is a schematic three-dimensional structure diagram of the reciprocating stamping mechanism of the present invention; Figure 17 is a schematic three-dimensional cross-sectional structure diagram of the reciprocating stamping mechanism of the present invention; Figure 18 is a schematic internal structure diagram of the reciprocating stamping mechanism of the present invention.

[0024] Reference numerals: 1, punching machine base; 101, support base; 102, bottom support mounting groove; 103, conveyor belt placement groove; 104, rotary drive mounting groove; 105, guide groove; 106, trapezoidal punching hole; 107, U-shaped fixing strip; 108, limit chute; 109, bottom connection hole plate; 110, guide slideway; 2, rotary drive mechanism; 201, first motor; 202, drive block; 203, fixed drive block; 204, fixed ear; 205, locking bolt; 3, part chuck mechanism; 301, circular chuck; 302, fixed support narrow plate; 303, fixed shaft rod; 304, rotating support wide plate; 305, bar magnet; 306, mounting card slot; 4, rolling steel ball; 5, punching support mechanism; 501, drive hydraulic cylinder; 502, U-shaped connecting rod; 503, connecting support sleeve; 504, punching support sleeve; 505, bolt assembly; 506, plastic telescopic sleeve; 507, limit block; 6, side extension base; 7, punching drive mechanism; 701, support bottom plate; 702, limit housing; 703, mechanism top housing; 704, second motor; 705, rotating shaft; 706, large gear; 707, pulley; 708, drive belt; 709, clutch; 710, drive crankshaft; 711, small gear; 712, rotating drive rod; 8, reciprocating punching mechanism; 801, connecting top sleeve; 802, side limit slider; 803, connecting rotating shaft; 804, backing plate; 805, punching rod; 806, return spring; 807, bottom plate connecting sleeve; 808, limit connecting sleeve; 9, mounting plate; 10, drive cylinder; 11, part to be punched. Detailed implementation mode

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As Figures 1 - 5As shown in the figure, a rotary stamping machine according to this embodiment includes a stamping machine base 1. The stamping machine base 1 includes a support base 101 placed on the ground. A bottom support installation groove 102 is opened at the bottom of the rear end of the support base 101. A conveyor belt placement groove 103 is opened on one side of the support base 101. A rotary drive installation groove 104 is opened on the inner wall of the conveyor belt placement groove 103 close to the center of the support base 101. A guide groove 105 is opened at the top of the support base 101. A trapezoidal stamping hole 106 is opened at the rear end of the top of the support base 101. Two U-shaped fixing bars 107 are fixedly connected to the inner surface of the top of the bottom support installation groove 102. Limiting sliding grooves 108 are opened on the sides of the two U-shaped fixing bars 107 close to each other. A bottom connection hole plate 109 is fixedly connected between the bottoms of the two U-shaped fixing bars 107. A guide slideway 110 is fixedly connected to the bottom of the bottom connection hole plate 109. The support base 101 plays an overall supporting role. Through the bottom support installation groove 102, the conveyor belt placement groove 103, the rotary drive installation groove 104, the guide groove 105 and the trapezoidal stamping hole 106, the installation of components, the reserved position for conveying parts, guiding and stamping work are respectively realized. The sliding limit of the connection support sleeve 503 is realized through the limiting sliding grooves 108 in the two U-shaped fixing bars 107. And the waste materials from stamping enter the inside of the stamping support sleeve 504, and then slide to one side through the plastic telescopic sleeve 506, the bottom connection hole plate 109 and the guide slideway 110, which is convenient for collection.

[0027] As Figure 6 and Figure 7 shown in the figure, a rotary drive mechanism 2 is installed inside the stamping machine base 1. The rotary drive mechanism 2 includes a first motor 201 fixedly connected to the inner surface of the bottom of the rotary drive installation groove 104. The output end of the first motor 201 is fixedly connected to a drive chuck 202. A fixed drive block 203 is clamped on the top of the drive chuck 202. A plurality of fixed ears 204 are fixedly connected to the top of the outer wall of the fixed drive block 203. Locking bolts 205 are installed on the plurality of fixed ears 204. The first motor 201 drives the drive chuck 202 to rotate, and then drives the fixed drive block 203 to rotate. The overall circular chuck 301 is driven to rotate through the square structure at the top of the fixed drive block 203, realizing the continuous rotation of the circular chuck 301, and further realizing the continuous feeding and discharging of the parts 11 to be stamped.

[0028] As Figures 10 - 12As shown, at the output end of the rotary drive mechanism 2, a part chuck mechanism 3 is provided on the top of the punching machine base 1. The part chuck mechanism 3 further includes a plurality of mounting slots 306 opened at the center of the top of the circular chuck 301. The part to be punched 11 is placed on the fixed support narrow plate 302 and the rotating support wide plate 304 at the front end of the circular chuck 301 manually or by mechanical drive, and is clamped and fixed through the formed grooves. After punching, the circular chuck 301 continues to rotate. Due to the special-shaped structure on the top of the support base 101, the rotating support wide plate 304 disengages and rotates downward under the action of gravity. When it rotates to the maximum value, the rotating support wide plate 304 made of iron material is fixed under the attraction of the bar magnet 305 and will not rebound. Then the part to be punched 11 will probably fall directly. It can be collected or a conveyor belt can be installed in the conveyor belt placement groove 103 to transfer the part to the next step. Finally, during the process of the circular chuck 301 continuing to rotate driven by the rotary drive mechanism 2, the rotating support wide plate 304 is restricted by the guiding slideway 110 and starts to rotate until it reaches the horizontal position, waiting for the placement of the next part to be punched 11. A plurality of square through holes corresponding to the part to be punched 11 are opened on the circular chuck 301. The guiding groove 105 corresponds to the rotating support wide plate 304. A plurality of fixed ears 204 and a plurality of mounting slots 306 correspond one by one, and threaded holes corresponding to the locking bolts 205 are also opened at the bottom of the mounting slots 306. The square through holes are used to complete the clamping of the part to be punched 11 and to install the rotating support wide plate 304 at the bottom. The guiding groove 105 is used to reset the rotating support wide plate 304, thereby completing the support for the next part to be punched 11. The circular chuck 301 can be easily replaced through the locking bolts 205 and the threaded holes. Furthermore, the circular chuck 301 with parts to be punched 11 of different shapes can be replaced. The part chuck mechanism 3 includes a circular chuck 301 rotatably connected to the top of the punching machine base 1. On one side of the inner wall of each of the plurality of grooves on the circular chuck 301, a fixed support narrow plate 302 is fixedly connected. On the other side of the inner wall of each of the plurality of grooves on the circular chuck 301, a fixed shaft rod 303 is fixedly connected. A rotating support wide plate 304 is rotatably connected to each of the plurality of fixed shaft rods 303. At one end of each of the plurality of rotating support wide plates 304 at the bottom of the circular chuck 301, a bar magnet 305 is fixedly connected.

[0029] As Figures 7 - 9As shown, a plurality of rolling steel balls 4 are arranged between the bottom of the circular chuck 301 and the top of the stamping machine base 1. A plurality of grooves corresponding to the rolling steel balls 4 are provided at the bottom of the circular chuck 301 and the top of the support base 101. The plurality of rolling steel balls 4 play a supporting role in the rotation of the circular chuck 301. A stamping support mechanism 5 is installed at the bottom of the rear end of the stamping machine base 1. The stamping support mechanism 5 includes a driving hydraulic cylinder 501 fixedly connected to the bottom of the rear end of the stamping machine base 1. The output end of the driving hydraulic cylinder 501 is fixedly connected with a U-shaped connecting rod 502. The top of the U-shaped connecting rod 502 is fixedly connected with a connecting support sleeve 503. A stamping support sleeve 504 is installed on the top of the connecting support sleeve 503. A plurality of bolt assemblies 505 are installed between the connecting support sleeve 503 and the stamping support sleeve 504. The stamping support mechanism 5 further includes a plastic telescopic sleeve 506 fixedly connected to the bottom of the support sleeve 503. Limiting blocks 507 are fixedly connected to both sides of the connecting support sleeve 503. The driving hydraulic cylinder 501 drives the U-shaped connecting rod 502 to move upward, thereby driving the connecting support sleeve 503 and the stamping support sleeve 504 to move upward until the top of the stamping support sleeve 504 passes through the trapezoidal stamping hole 106 and the through hole on the rotating support wide plate 304 and is in the same plane as the top of the rotating support wide plate 304, waiting to complete the stamping work. The plastic telescopic sleeve 506 is used to guide the waste material and can simultaneously complete the length change as the connecting support sleeve 503 rises and falls. It can be replaced in time after the stamping support sleeve 504 is worn. A side extension base 6 is fixedly connected between the top and the bottom of the rear end face of the stamping machine base 1.

[0030] As Figures 13 - 15As shown, a stamping drive mechanism 7 is fixedly connected to the top of the side extension base 6. The stamping drive mechanism 7 includes a support base plate 701 fixedly connected to the top of the side extension base 6. The inner wall of the front end of the support base plate 701 is fixedly connected with a limit shell 702. The top of the limit shell 702 is fixedly connected with a mechanism top shell 703. The rear end of the support base plate 701 is fixedly connected with a second motor 704. A rotating shaft 705 is rotatably connected between the two sides of the mechanism top shell 703. One end of the rotating shaft 705 is fixedly connected with a large gear 706. The output end of the second motor 704 is fixedly connected with a pulley 707. The other end of the rotating shaft 705 is provided with a clutch 709 on the outer wall of the mechanism top shell 703. A transmission belt 708 is installed between the pulley 707 and the clutch 709. A transmission crankshaft 710 is rotatably connected between the two sides of the limit shell 702. One end of the transmission crankshaft 710 is fixedly connected with a small gear 711 meshing with the large gear 706. A rotating transmission rod 712 is rotatably connected to the outer wall of the middle section of the transmission crankshaft 710. The second motor 704 drives the pulley 707 to rotate, drives the rotating shaft 705 to rotate through the transmission belt 708 and the clutch 709, and the large gear 706 at the other end also rotates accordingly. The small gear 711 and the transmission crankshaft 710 are driven to rotate by meshing with the small gear 711. The middle section of the transmission crankshaft 710 will drive the rotating transmission rod 712 while making a circular motion, thereby completing the drive of the reciprocating stamping mechanism 8. Connecting bearings are installed between the two ends of the rotating shaft 705 and the transmission crankshaft 710 and the mechanism top shell 703 and the limit shell 702 respectively. The connecting bearings play a supporting role in the rotation of the rotating shaft 705 and the transmission crankshaft 710.

[0031] As Figures 16 - 18As shown, a reciprocating stamping mechanism 8 is slidably connected inside the stamping drive mechanism 7. The reciprocating stamping mechanism 8 includes a connecting top sleeve 801 slidably connected to the bottom of the front end of the stamping drive mechanism 7. Side limit sliders 802 are fixedly connected to both sides of the connecting top sleeve 801. A connecting rotating shaft 803 is fixedly connected to the center of the top of the connecting top sleeve 801. A backing plate 804 is fixedly connected to the center of the inner surface of the top of the connecting top sleeve 801. A stamping rod 805 is fixedly connected to the bottom of the backing plate 804. A return spring 806 is fixedly connected to each corner of the inner surface of the top of the connecting top sleeve 801. A bottom plate connecting sleeve 807 is fixedly connected between the bottoms of the multiple return springs 806. A limit connecting sleeve 808 is fixedly connected to the center of the inner surface of the bottom of the bottom plate connecting sleeve 807. Since the two ends of the rotating transmission rod 712 complete rotations respectively, when the transmission crankshaft 710 rotates, the connecting rotating shaft 803 will drive the entire reciprocating stamping mechanism 8 to complete up and down reciprocating movements. When the entire reciprocating stamping mechanism 8 descends, the bottom plate connecting sleeve 807 first contacts the surface of the part to be stamped 11 and stops moving, and then the connecting top sleeve 801 continues to descend and compresses the multiple return springs 806 until the stamping rod 805 passes through the bottom plate connecting sleeve 807 and the part to be stamped 11 to complete stamping. Then, as the transmission crankshaft 710 rotates, the entire reciprocating stamping mechanism 8 is reset. The stamping waste will enter the stamping support sleeve 504, and then slide to one side through the plastic telescopic sleeve 506, the bottom connecting hole plate 109, and the guiding slideway 110. Finally, the stamping support sleeve 504 is reset under the drive of the drive hydraulic cylinder 501. One side of the bottom of the front end face of the stamping drive mechanism 7 is fixedly connected with a mounting plate 9. A drive cylinder 10 is fixedly connected to the front end of the top of the mounting plate 9. Two parts to be stamped 11 are placed on the part chucking mechanism 3.

[0032] The working principle of this embodiment is as follows. When in use, the part to be stamped 11 is placed on the fixed support narrow plate 302 and the rotating support wide plate 304 at the front end of the circular chuck 301 by manual or mechanical drive, and is clamped and fixed through the formed groove. Then, the first motor 201 drives the drive block 202 to rotate, and further drives the fixed drive block 203 to rotate. The square structure at the top of the fixed drive block 203 drives the entire circular chuck 301 to rotate, and then rotates the next groove to the front end. As the circular chuck 301 rotates, the part to be stamped 11 will be moved to the rear end. At this time, the drive hydraulic cylinder 501 drives the U-shaped connecting rod 502 to move upward, and further drives the connecting support sleeve 503 and the stamping support sleeve 504 to move upward until the top of the stamping support sleeve 504 passes through the trapezoidal stamping hole 106 and the through hole on the rotating support wide plate 304 and is in the same plane as the top of the rotating support wide plate 304; Meanwhile, the second motor 704 drives the pulley 707 to rotate, drives the rotating shaft 705 to rotate through the transmission belt 708 and the clutch 709, and the large gear 706 at the other end also rotates accordingly. The large gear 706 drives the small gear 711 and the transmission crankshaft 710 to rotate through meshing with the small gear 711. The middle part of the transmission crankshaft 710 will drive the rotating transmission rod 712 while making a circular motion, thereby completing the drive of the connecting rotating shaft 803. Since both ends of the rotating transmission rod 712 complete rotation respectively, the connecting rotating shaft 803 will drive the overall reciprocating stamping mechanism 8 to perform up and down reciprocating motion when the transmission crankshaft 710 rotates. When the overall reciprocating stamping mechanism 8 descends, the bottom plate connecting sleeve 807 first contacts the surface of the part to be stamped 11 and stops moving. Then the connecting top sleeve 801 continues to descend and compresses a plurality of return springs 806 until the stamping rod 805 passes through the bottom plate connecting sleeve 807 and the part to be stamped 11 to complete stamping. Then, with the rotation of the transmission crankshaft 710, the overall reciprocating stamping mechanism 8 is reset. The stamping waste will enter the inside of the stamping support sleeve 504, and then slide to one side through the plastic telescopic sleeve 506, the bottom connecting hole plate 109, and the guiding slideway 110. Finally, the stamping support sleeve 504 is reset under the drive of the driving hydraulic cylinder 501; Then, under the drive of the rotary drive mechanism 2, the circular chuck 301 continues to rotate. Since the special-shaped structure rotating support wide plate 304 on the top of the support base 101 is out of position and rotates downward under the action of gravity. When it rotates to the maximum value, the rotating support wide plate 304 made of iron material is fixed under the attraction of the bar magnet 305 and will not rebound. Then, the part to be stamped 11 will probably directly fall off. One can choose to collect it or install a conveyor belt in the conveyor belt placement groove 103 to convey the part to the next step. Finally, during the process that the circular chuck 301 continues to rotate under the drive of the rotary drive mechanism 2, the rotating support wide plate 304 is restricted by the guiding slideway 110 and starts to rotate until it reaches the horizontal position, waiting for the placement of the next part to be stamped 11.

[0033] The above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention.

Claims

1. A rotary punching machine, comprising a punching machine base (1), characterized in that: A rotary drive mechanism (2) is installed inside the punching machine base (1); a part chuck mechanism (3) is arranged at the output end of the rotary drive mechanism (2) at the top of the punching machine base (1); the part chuck mechanism (3) comprises a circular chuck (301) rotatably connected to the top of the punching machine base (1); one side of the inner wall of multiple grooves on the circular chuck (301) is fixedly connected to a fixed support narrow plate (302); the other side of the inner wall of multiple grooves on the circular chuck (301) is fixedly connected to a fixed shaft rod (303); multiple fixed shaft rods (303) are rotatably connected to a rotation support wide plate (304); and a bar magnet (305) is fixedly connected to one end of multiple rotation support wide plates (304) at the bottom of the circular chuck (301); A plurality of rolling steel balls (4) are arranged between the bottom of the circular chuck (301) and the top of the punching machine base (1); a punching support mechanism (5) is installed at the bottom of the rear end of the punching machine base (1); the punching support mechanism (5) comprises a driving hydraulic cylinder (501) fixedly connected to the bottom of the rear end of the punching machine base (1); the output end of the driving hydraulic cylinder (501) is fixedly connected to a U-shaped connecting rod (502); the top of the U-shaped connecting rod (502) is fixedly connected to a connecting support sleeve (503); the top of the connecting support sleeve (503) is installed with a punching support sleeve (504); a plurality of bolt assemblies (505) are installed between the connecting support sleeve (503) and the punching support sleeve (504); and a side extension base (6) is fixedly connected between the top and bottom of the rear end surface of the punching machine base (1); The top of the side extension base (6) is fixedly connected to a punching drive mechanism (7), the inside of the punching drive mechanism (7) is slidably connected to a reciprocating punching mechanism (8), the reciprocating punching mechanism (8) comprises a connecting top sleeve (801) slidably connected to the bottom of the front end of the punching drive mechanism (7), both sides of the connecting top sleeve (801) are fixedly connected to side limit sliders (802), the top center of the connecting top sleeve (801) is fixedly connected to a connecting shaft (803), the center of the top inner surface of the connecting top sleeve (801) is fixedly connected to a pad (804), the bottom of the pad (804) is fixedly connected to the connecting top sleeve (801), and the bottom of the pad (804) is fixedly connected to the connecting top sleeve (801). A punching rod (805) is fixedly connected to the top of the connecting top sleeve (801), a return spring (806) is fixedly connected to each corner of the top inner surface of the connecting top sleeve (801), a bottom plate connecting sleeve (807) is fixedly connected between the bottoms of the plurality of return springs (806), a limit connecting sleeve (808) is fixedly connected to the center of the bottom inner surface of the bottom of the bottom plate connecting sleeve (807), a mounting plate (9) is fixedly connected to one side of the bottom of the front end surface of the punching drive mechanism (7), a driving cylinder (10) is fixedly connected to the front end of the top of the mounting plate (9), and two parts to be punched (11) are placed on the part chuck mechanism (3).

2. The rotary punching machine according to claim 1, characterized in that: The punching machine base (1) comprises a support base (101) placed on the ground, a bottom support installation groove (102) is provided at the bottom of the rear end of the support base (101), a conveyor belt placement groove (103) is provided on one side of the support base (101), a rotation drive installation groove (104) is provided on the inner wall of the conveyor belt placement groove (103) on one side close to the center of the support base (101), a guide groove (105) is provided at the top of the support base (101), a trapezoidal punching hole (106) is provided at the rear end of the top of the support base (101), two U-shaped fixing strips (107) are fixedly connected to the inner surface of the top of the bottom support installation groove (102), the two U-shaped fixing strips (107) are provided with a limiting slide groove (108) on the side close to each other, a bottom connecting hole plate (109) is fixedly connected between the bottoms of the two U-shaped fixing strips (107), and a guide slideway (110) is fixedly connected to the bottom of the bottom connecting hole plate (109).

3. The rotary punching machine according to claim 2, characterized in that: The bottom of the circular chuck (301) and the top of the supporting base (101) are both provided with a plurality of grooves corresponding to the rolling steel balls (4).

4. The rotary punching machine according to claim 2, characterized in that: The rotary drive mechanism (2) comprises a first motor (201) fixedly connected to the inner surface of the bottom of the rotary drive installation groove (104); the output end of the first motor (201) is fixedly connected to a drive card block (202); the top of the drive card block (202) is engaged with a fixed drive block (203); the top of the outer wall of the fixed drive block (203) is fixedly connected to a plurality of fixed ears (204); and locking bolts (205) are installed on the plurality of fixed ears (204).

5. The rotary punching machine according to claim 4, characterized in that: The part chuck mechanism (3) further comprises a plurality of mounting slots (306) disposed at the top centre of the circular chuck (301).

6. The rotary punching machine according to claim 5, characterized in that: The circular chuck (301) is provided with a plurality of square through holes corresponding to the parts to be punched (11), the guide groove (105) corresponds to the rotation support wide plate (304), the plurality of fixing ears (204) correspond to the plurality of mounting slots (306) in one-to-one correspondence, and the bottom of the mounting slot (306) is also provided with a threaded hole corresponding to the locking bolt (205).

7. The rotary punching machine according to claim 1, characterized in that: The stamping support mechanism (5) further comprises a plastic telescopic sleeve (506) fixedly connected to the bottom of the connecting support sleeve (503), and both sides of the connecting support sleeve (503) are fixedly connected to limit blocks (507).

8. The rotary punching machine according to claim 1, characterized in that: The punching drive mechanism (7) comprises a supporting base plate (701) fixedly connected to the top of the side extension base (6); the inner wall of the front end of the supporting base plate (701) is fixedly connected to a limiting shell (702); the top of the limiting shell (702) is fixedly connected to a mechanism top shell (703); the rear end of the supporting base plate (701) is fixedly connected to a second motor (704); a rotating shaft (705) is rotatably connected between two sides of the mechanism top shell (703); one end of the rotating shaft (705) is fixedly connected to a large gear (706); the second motor (704) ) is fixedly connected to an output end thereof with a pulley (707), a clutch (709) is installed on the outer wall of the mechanism top shell (703) at the other end of the rotating shaft (705), a transmission belt (708) is installed between the pulley (707) and the clutch (709), a transmission crankshaft (710) is rotatably connected between the two sides of the limiting shell (702), one end of the transmission crankshaft (710) is fixedly connected to a small gear (711) meshing with the large gear (706), and a rotating transmission rod (712) is rotatably connected to the outer wall of the middle section of the transmission crankshaft (710).

9. The rotary punching machine according to claim 8, characterized in that: Connecting bearings are installed between the two ends of the rotating shaft (705) and the transmission crankshaft (710) and the mechanism top shell (703) and the limiting shell (702) respectively.

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