A punching machine

Abstract

The present application relates to a punching machine, which includes a machine body and a first hydraulic cylinder, a workbench and two punches arranged on the machine body. The piston rod of the first hydraulic cylinder is arranged vertically downward, and the two punches are arranged on the piston rod of the first hydraulic cylinder. The upper surface of the workbench is provided with a fixed block and two positioning blocks along the direction in which the workpiece extends. A placement groove is formed between the fixed block and the positioning block. The distance between the two side walls of the placement groove gradually increases from bottom to top. When the workpiece is placed on the workbench, the part of the workpiece to be punched is located in the placement groove. A conveying device for conveying the workpiece to the workbench is provided on one side of the machine body. When the workpiece is located on the workbench, the part of the workpiece to be punched is located in one of the placement grooves, and the conveying device fixes the workpiece at this time. The present application can simplify the operation process of the workpiece and has the effect of reducing the labor intensity of the workers.

Description

Technical Field

[0001] The present application relates to the field of machine tools, and in particular to a punching machine. Background Art

[0002] Civil defense doors are doors used for entrances and exits of people's defense projects. When installing civil defense doors, you need to install the door frame first.

[0003] In the related art, as shown in the attached manual Figure 1 As shown, the civil air defense door frame 14 is usually made of a workpiece 11. During the processing, the workpiece 11 is first processed into a first semi-finished product 12, and then the first semi-finished product 12 is processed into a second semi-finished product 13. Then, three second semi-finished products 13 are spliced, and after splicing, the three second semi-finished products 13 are welded together to obtain the civil air defense door frame 14. The workpiece 11 has models of various lengths and sizes, so as to manufacture civil air defense door frames 14 of different sizes.

[0004] A punch press is usually used to process the workpiece 11 into a first semi-finished product 12. During the operation, the worker first places one end of the workpiece 11 on the workbench of the punch press, then holds the other end of the workpiece 11 with his hand, and then starts the punch press. The punch on the punch press moves downward to break off a part of the workpiece 11, and then the same operation is performed on the other end of the workpiece 11, thereby obtaining the first semi-finished product 12.

[0005] In the process of processing the workpiece 11 into the first semi-finished product 12, the worker needs to place the workpiece 11 on the workbench of the punch press first, and then the worker needs to hold the workpiece 11 during the entire punching process, which is inconvenient to operate and increases the labor intensity of the workers. Summary of the invention

[0006] In order to simplify the operational process of processing a workpiece into a first semi-finished product, thereby reducing the labor intensity of workers, the present application provides a punching machine.

[0007] The punch press provided in this application adopts the following technical solution:

[0008] A punching machine comprises a machine body and a first hydraulic cylinder, a workbench and two punches arranged on the machine body, the piston rod of the first hydraulic cylinder is arranged vertically downward, the two punches are arranged on the piston rod of the first hydraulic cylinder, the workbench is arranged horizontally and is located below the punches, the upper surface of the workbench is provided with a fixed block and two positioning blocks along the direction in which the workpiece extends, both sides of the fixed block are arranged obliquely, the distance between the two sides of the fixed block gradually increases from top to bottom, the cross-section of the positioning block is triangular, the two positioning blocks are respectively located on both sides of the fixed block, a placement groove is formed between the fixed block and the positioning block, the distance between the two side walls of the placement groove gradually increases from bottom to top, the two placement grooves are respectively located directly below the two punches, when the workpiece is placed on the workbench, the part of the workpiece to be punched is located in the placement groove, a conveying device for conveying the workpiece to the workbench is provided on one side of the machine body, when the workpiece is on the workbench, the part of the workpiece to be punched is located in one of the placement grooves, and at this time the conveying device fixes the workpiece.

[0009] By adopting the above technical scheme, the special shapes of the fixing block and the positioning block form a placement groove, which matches the shape of the workpiece and has a reasonable structure; when working, the workpiece is conveyed to the workbench by a conveying device, so that the part of the workpiece to be punched is located in one of the placement grooves, and the workpiece is fixed at the same time, and then the first hydraulic cylinder is started, the piston rod of the first hydraulic cylinder is extended to drive the punch to move downward, thereby breaking a part of the workpiece, and then the piston rod of the first hydraulic cylinder is contracted, driving the punch to move upward to leave the workpiece, and then the workpiece is taken out, and the same operation is performed on the other end of the workpiece, so that the part of the other end of the workpiece that needs to be processed is located in another placement groove, and then the above operation is repeated to obtain the first semi-finished product; there is no need for workers to hold the workpiece tightly during the stamping process, which effectively simplifies the operation process and reduces the labor intensity of workers.

[0010] Optionally, a conveyor frame is provided on one side of the body along the length direction of the placement slot, and the conveying device includes a conveying track and a driving mechanism, the conveying track is arranged on the conveying frame and along the length direction of the placement slot, and the upper surface of the conveying track is provided with two first baffles along the length direction of the conveying track, the two first baffles are vertically arranged and respectively located near the two sides of the conveying track, and the workpiece is slidably arranged on the conveying track, and the driving mechanism is used to drive the workpiece to move, and the conveying frame is provided with a flipping mechanism, and the flipping mechanism is used to flip the side of the workpiece to be processed upwards, and the flipping mechanism is located between the conveying track and the body, and a limit plate for positioning the workpiece is provided on the body, the limit plate is located on the side of the fixed block facing away from the conveying frame, and the limit plate is slidably arranged on the body in the vertical direction, and a lifting mechanism for driving the limit plate to move is provided on the body, and when the workpiece is close to the limit plate, a part of the workpiece is located on the conveying track.

[0011] By adopting the above technical solution, the workpiece is placed on the conveying track, and then the driving mechanism is used to push the workpiece toward the machine body. When one end of the workpiece extends out of the conveying track, the flipping mechanism flips the side of the workpiece to be processed upward, so that the workpiece moves to the other side under the action of gravity until the workpiece is pressed against the second baffle, so that the part of the workpiece to be processed is aligned with the corresponding placement groove, because for the two ends of the workpiece, the placement grooves that need to be entered during processing are different; when the driving mechanism presses the workpiece against the limit plate, the workpiece is fixed. After the workpiece is processed, the lifting mechanism is used to drive the limit plate to move downward, thereby releasing the fixing effect on the workpiece, and then the workpiece is taken out, and the same operation can be performed on the other end of the workpiece. It should be noted that when processing the two ends of the workpiece, the flipping mechanism needs to flip the workpiece in different directions.

[0012] Optionally, the driving mechanism includes a push plate and a driving member, wherein the push plate is slidably disposed on the conveying track along the length of the conveying track and is used to push the workpiece to move toward the machine body, and the driving member is used to drive the push plate to move.

[0013] By adopting the above technical solution, the driving member is used to drive the push plate to move, and the push plate drives the workpiece to move, and the structure is simple.

[0014] Optionally, a spring is connected to a side of the push plate facing the machine body, and an end of the spring away from the push plate is connected to a clamping plate. The clamping plate is slidably disposed on the conveying track and is used to push the workpiece to move toward the machine body.

[0015] By adopting the above technical solution, the push plate pushes the spring to move, the spring pushes the clamping plate to move, and the clamping plate pushes the workpiece to move. When the clamping plate pushes the workpiece to the clamping limit plate, the push plate continues to move and the spring is compressed, which has a buffering effect on the system, avoiding excessive impact force between the workpiece and the limit plate, and the structure is reasonable.

[0016] Optionally, a slide groove is formed on the upper surface of the conveying track along the length direction of the conveying track, and a slider is provided at the bottom end of the push plate. The slider is slidably set in the slide groove, and the driving member includes a driving motor and a lead screw. The lead screw is rotatably set on the conveying frame and along the length direction of the conveying track. The lead screw is fixed along the length direction of the conveying track and is threadedly connected to the slider. The driving motor is set on the conveying frame and is used to drive the lead screw to rotate.

[0017] By adopting the above technical solution, the driving motor drives the lead screw to rotate, the rotation of the lead screw drives the slider to move, the movement of the slider drives the push plate to move, thereby driving the spring and the clamping plate to move, the structure is simple, and the operation is convenient.

[0018] Optionally, a sensor is provided on the push plate, and when the elastic force of the spring acting on the push plate exceeds a set value, the sensor is used to turn off the drive motor.

[0019] By adopting the above technical solution, within the elastic limit of the spring, the elastic force of the spring is proportional to the compressed length of the spring. If the pressure on the spring is too large, it may cause the spring to be damaged. Therefore, the set value of the sensor is set according to the properties of the spring. When the elastic force of the spring exceeds the set value, the sensor will drive the motor to turn off, so that the push plate stops moving, thereby stopping further compression of the spring, reducing the possibility of damage to the spring and having a reasonable structure.

[0020] Optionally, a discharge port is provided on the machine body, and the discharge port is located on the side of the limit plate facing away from the fixed block. A mounting frame is provided on the side of the machine body facing away from the conveying frame, and a discharge device for removing the workpiece is provided on the mounting frame.

[0021] By adopting the above technical solution, after one end of the workpiece is processed, the lifting mechanism is used to drive the limit plate to move downward, and then the workpiece will be ejected through the discharge port under the elastic force of the spring. After the end of the workpiece away from the clamping plate is ejected out of the discharge port, the unloading device is used to take out the clamping plate to facilitate unloading.

[0022] Optionally, the unloading device includes a connecting rod and an electromagnet. The connecting rod is vertically arranged and slidably arranged on the mounting frame along the length direction of the conveying track. The mounting frame is provided with a sliding mechanism for driving the connecting rod to move along the length direction of the conveying track. The electromagnet is arranged at the bottom end of the connecting rod. When the workpiece moves out of the discharge port, the electromagnet is located directly above the workpiece.

[0023] By adopting the above technical solution, after the end of the workpiece away from the clamping plate is ejected by the spring, the workpiece is adsorbed by the electromagnet, and then the sliding mechanism is used to drive the connecting rod to move along the length direction of the conveying track, so as to take out the workpiece, and the structure is simple.

[0024] Optionally, the connecting rod is slidably arranged on the mounting frame along a vertical direction, and a sliding component for driving the connecting rod to move along the vertical direction is arranged on the mounting frame.

[0025] By adopting the above technical solution, before the workpiece is ejected, the sliding assembly is used to drive the connecting rod to move upward, thereby driving the electromagnet to move upward, avoiding the workpiece from colliding with the electromagnet when being ejected; after the workpiece is ejected, the sliding assembly is used to adjust the height of the electromagnet so that the electromagnet can better fit the workpiece, resulting in a better adsorption effect and a reasonable structure.

[0026] Optionally, a horizontal support plate is provided on the conveying frame, and the support plate is located between the conveying frame and the machine body. Two second baffles are provided on the support plate along the length direction of the conveying track, and the two second baffles are vertically arranged and respectively located near the two sides of the conveying track. The flipping mechanism includes a flip plate and two second hydraulic cylinders, and the flip plate is placed on the support plate. The upper surface of the flip plate is flush with the conveying track. The two second hydraulic cylinders are arranged on the conveying frame and are located below the flip plate. The piston rods of the two second hydraulic cylinders are arranged vertically upward, and the piston rods of the two second hydraulic cylinders pass through the support plate upward and contact with the flip plate. The two second hydraulic cylinders are distributed in a direction perpendicular to the length direction of the conveying track.

[0027] By adopting the above technical solution, when one end of the workpiece away from the abutting plate passes over the flip plate, one of the second hydraulic cylinders is started, and the piston rod of the second hydraulic cylinder moves upward, thereby lifting one end of the flip plate upward, so that the side of the workpiece to be processed is flipped upward, and the workpiece moves to the other side under the action of gravity until the workpiece abuts against the second baffle, so that the part of the workpiece to be processed is aligned with the corresponding placement groove; when processing the other end of the workpiece, the other second hydraulic cylinder can be started, and the structure is simple and the operation is convenient.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The special shapes of the fixing block and the positioning block form a placement slot, which matches the shape of the workpiece and has a reasonable structure. When working, the workpiece is transported to the workbench by a conveying device so that the part of the workpiece to be punched is located in one of the placement slots, and the workpiece is fixed at the same time. Then the first hydraulic cylinder is started, and the piston rod of the first hydraulic cylinder is extended to drive the punch to move downward, thereby breaking a part of the workpiece. Then the piston rod of the first hydraulic cylinder is contracted, driving the punch to move upward to leave the workpiece, and then the workpiece is taken out, and the same operation is performed on the other end of the workpiece, so that the part of the other end of the workpiece to be processed is located in another placement slot, and then the above operation is repeated to obtain the first semi-finished product. There is no need for workers to hold the workpiece tightly during the stamping process, which effectively simplifies the operation process and reduces the labor intensity of workers.

[0030] 2. The driving motor drives the lead screw to rotate, the lead screw rotation drives the slider to move, the slider movement drives the push plate to move, thereby driving the spring and the abutting plate to move, the abutting plate pushes the workpiece to move, when the abutting plate pushes the workpiece to the abutting limit plate, the push plate continues to move, the spring is compressed, and the system has a buffering effect, avoiding excessive impact between the workpiece and the limit plate, and the structure is reasonable;

[0031] 3. When one end of the workpiece away from the clamping plate passes over the flip plate, one of the second hydraulic cylinders is started, and the piston rod of the second hydraulic cylinder moves upward, thereby lifting one end of the flip plate upward, so that the side of the workpiece to be processed is flipped upward, and the workpiece moves to the other side under the action of gravity until the workpiece is pressed against the second baffle, so that the part of the workpiece to be processed is aligned with the corresponding placement groove; when processing the other end of the workpiece, the other second hydraulic cylinder can be started. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flow chart of the processing status of a workpiece in the background technology of this application.

[0033] Figure 2 It is a schematic diagram of the three-dimensional structure of a punching machine in an embodiment of the present application.

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure of the body in the embodiment of the present application.

[0035] Figure 4 In the embodiment of this application Figure 3 A magnified view of point A.

[0036] Figure 5 It is a cross-sectional view of the body in the embodiment of the present application.

[0037] Figure 6 It is a schematic diagram of the connection relationship between the conveying frame, the conveying device and the turning mechanism in the embodiment of the present application.

[0038] Figure 7 It is a schematic diagram of the connection relationship between the lead screw and the slider in the embodiment of the present application.

[0039] Figure 8 It is a schematic diagram of the connection relationship between the mounting frame, the unloading device, the sliding mechanism and the sliding assembly in the embodiment of the present application.

[0040] Description of reference numerals: 11, workpiece; 12, first semi-finished product; 13, second semi-finished product; 14, air-raid door frame; 2, machine body; 21, first hydraulic cylinder; 211, connecting plate; 212, fixing plate; 213, rubber block; 214, pressing block; 22, workbench; 221, fixing block; 222, positioning block; 223, placement groove; 224, first limiting groove; 23, punch; 24, second limiting groove; 241, receiving groove; 25, limiting plate; 26, third hydraulic cylinder; 27, discharge port; 3, conveying frame; 31, conveying device; 32, conveying track; 321, first baffle; 322 , slide groove; 33, driving mechanism; 34, push plate; 341, slider; 342, spring; 343, clamping plate; 35, driving member; 351, driving motor; 352, screw; 36, mounting plate; 37, support plate; 371, second baffle; 4, flip mechanism; 41, flip plate; 42, second hydraulic cylinder; 5, mounting frame; 51, column; 52, cross plate; 521, mounting groove; 53, collecting box; 6, unloading device; 61, connecting rod; 62, electromagnet; 71, sliding mechanism; 711, fourth hydraulic cylinder; 712, sliding plate; 713, sliding part; 72, fifth hydraulic cylinder. DETAILED DESCRIPTION

[0041] The following is combined with Figure 2-8 This application is described in further detail.

[0042] The present application embodiment discloses a punching machine. Figure 2 and Figure 3 A punching machine includes a machine body 2 and a first hydraulic cylinder 21 , a workbench 22 and two punches 23 arranged on the machine body 2 .

[0043] Reference Figure 3 and Figure 4 The first hydraulic cylinder 21 is fixedly mounted on the machine body 2 and the piston rod is vertically downwardly arranged. A horizontal connecting plate 211 is welded to the bottom end of the piston rod of the first hydraulic cylinder 21. Two horizontal fixing plates 212 are welded to the lower surface of the connecting plate 211. The two fixing plates 212 are distributed along a direction perpendicular to the insertion direction of the workpiece 11. The two punches 23 are respectively welded to the two fixing plates 212. A rubber block 213 is bonded to the lower surface of the fixing plate 212. A pressing block 214 is bonded to the lower surface of the rubber block 213. The pressing block 214 is located on the side of the punch 23 facing the feeding end.

[0044] Reference Figure 3 and Figure 4 The workbench 22 is fixedly mounted on the machine body 2. The workbench 22 is horizontally arranged and located below the punch 23. A fixed block 221 and two positioning blocks 222 are integrally arranged on the upper surface of the workbench 22. The fixed block 221 and the positioning blocks 222 are arranged along the direction in which the workpiece 11 extends. Both sides of the fixed block 221 are inclined, and the distance between the two sides of the fixed block 221 gradually increases from top to bottom. Both sides of the positioning block 222 are inclined, and the distance between the two sides of the positioning block 222 gradually increases from top to bottom, and the cross-section of the positioning block 222 is triangular. The two positioning blocks 222 are respectively located on both sides of the fixed block 221. Two placement grooves 223 are formed between the fixed block 221 and the two positioning blocks 222. The distance between the two side walls of the placement groove 223 gradually increases from bottom to top.

[0045] Reference Figure 5 A first limiting groove 224 is provided on the lower surface of the workbench 22 along a length direction perpendicular to the placement groove 223. The first limiting groove 224 penetrates the workbench 22 along the vertical direction, and the first limiting groove 224 is located on the side of the fixed block 221 facing away from the feeding end. A second limiting groove 24 is provided on the body 2 and is parallel to and connected with the first limiting groove 224. The second limiting groove 24 is located below the first limiting groove 224, and a receiving groove 241 is provided at the bottom of the second limiting groove 24.

[0046] Reference Figure 5 A limit plate 25 is provided on the machine body 2, and the limit plate 25 is slidably provided in the first limit groove 224 and the second limit groove 24 along the vertical direction. A lifting mechanism for driving the limit plate 25 to move is provided on the machine body 2, and the lifting mechanism includes a third hydraulic cylinder 26, and the third hydraulic cylinder 26 is fixedly installed on the machine body 2 and is located in the accommodating groove 241. The piston rod of the third hydraulic cylinder 26 is vertically upwardly arranged and welded to the lower surface of the limit plate 25, thereby driving the limit plate 25 to move in the vertical direction.

[0047] Reference Figure 5 A discharge port 27 is provided on the machine body 2 , and the discharge port 27 is located on a side of the limiting plate 25 facing away from the fixing block 221 .

[0048] Reference Figure 2 and Figure 6A conveying frame 3 is fixedly installed on one side of the machine body 2. The conveying frame 3 is located on the side of the fixed block 221 facing away from the discharge port 27. A conveying device 31 for conveying the workpiece 11 to the workbench 22 is provided on the conveying frame 3. The conveying device 31 includes a conveying track 32 and a driving mechanism 33. The driving mechanism 33 includes a push plate 34 and a driving member 35. The driving member 35 includes a driving motor 351 and a lead screw 352. The conveying track 32 is horizontally welded on the conveying frame 3 and arranged along the length direction of the fixed block 221. Two first baffles 321 along the length direction of the conveying track 32 are welded on the upper surface of the conveying track 32. The two first baffles 321 are both vertically arranged and respectively located near the two sides of the conveying track 32.

[0049] Reference Figure 6 and Figure 7 The upper surface of the conveying track 32 is provided with a slide groove 322 along the length direction of the conveying track 32. The push plate 34 is slidably arranged on the conveying track 32 along the length direction of the conveying track 32, and the lower surface of the push plate 34 is in contact with the conveying track 32, the length direction of the push plate 34 is perpendicular to the length direction of the conveying track 32, and a slider 341 is integrally arranged on the lower surface of the push plate 34, and the slider 341 is slidably arranged in the slide groove 322, so that the push plate 34 is slidably arranged on the conveying track 32 along the length direction of the conveying track 32. The lead screw 352 is rotatably mounted on the conveying track 32 and arranged along the length direction of the conveying track 32, the lead screw 352 is fixed along the length direction of the conveying track 32 and is threadedly connected to the slider 341, and the drive motor 351 is fixedly mounted on the conveying track 32 and the output shaft is coaxially fixedly connected to the lead screw 352. A spring 342 is fixedly connected to the side of the push plate 34 facing the machine body 2, and a clamping plate 343 is fixedly connected to the end of the spring 342 away from the push plate 34. The clamping plate 343 is slidably arranged on the conveying track 32 along the length direction of the conveying track 32. A sensor is installed on the push plate 34. When the elastic force of the spring 342 acting on the push plate 34 exceeds a set value, the sensor is used to turn off the drive motor 351.

[0050] During operation, the workpiece 11 is placed on the conveying track 32, and the workpiece 11 is located on the side of the clamping plate 343 facing the machine body 2. Then the driving motor 351 is started to drive the screw 352 to rotate. The rotation of the screw 352 drives the slider 341 to move toward the machine body 2. The slider 341 drives the push plate 34 to move toward the machine body 2. The push plate 34 drives the clamping plate 343 to move toward the machine body 2 through the spring 342, thereby pushing the workpiece 11 to move toward the machine body 2.

[0051] Reference Figure 6A horizontal mounting plate 36 and a support plate 37 are welded on the conveying frame 3, and both the mounting plate 36 and the support plate 37 are located between the conveying frame 3 and the machine body 2. The support plate 37 is located directly above the mounting plate 36, and a second baffle 371 is welded at both ends of the support plate 37, and the second baffle 371 is arranged along the length direction of the conveying track 32 and is vertically arranged, and the second baffle 371 is aligned with the first baffle 321.

[0052] Reference Figure 6 A flipping mechanism 4 for flipping the side of the workpiece 11 to be processed upward is provided on the conveying frame 3. The flipping mechanism 4 includes a flipping plate 41 and two second hydraulic cylinders 42. The flipping plate 41 is placed on the support plate 37. The two second hydraulic cylinders 42 are welded to the mounting plate 36 and are distributed along a direction perpendicular to the length of the conveying track 32. The piston rods of the two second hydraulic cylinders 42 are vertically arranged upward and pass through the support plate 37 upward to contact the flipping plate 41.

[0053] Reference Figure 2 and Figure 8 The mounting frame 5 is fixedly mounted on the side of the machine body 2 facing away from the conveying frame 3. The mounting frame 5 includes four upright posts 51 and a horizontal plate 52. The four upright posts 51 are vertically fixedly mounted on the ground and are distributed in a rectangular shape. The four upright posts 51 are located on the side of the machine body 2 facing away from the conveying frame 3. The horizontal plate 52 is welded to the top of the four upright posts 51. The horizontal plate 52 is provided with an installation groove 521 along the length direction of the conveying track 32. The installation groove 521 penetrates the horizontal plate 52 in the vertical direction. A collection box 53 is placed below the horizontal plate 52.

[0054] Reference Figure 8 A feeding device 6 for removing the workpiece 11 from the discharge port 27 is installed on the horizontal plate 52. The feeding device 6 includes a connecting rod 61 and an electromagnet 62. The connecting rod 61 is vertically arranged and slides in the installation groove 521 along the length direction of the installation groove 521, and the connecting rod 61 slides on the horizontal plate 52 along the vertical direction.

[0055] Reference Figure 8The horizontal plate 52 is provided with a sliding mechanism 71 for driving the connecting rod 61 to slide along the length direction of the installation groove 521 and a sliding assembly for driving the connecting rod 61 to slide along the vertical direction. The sliding mechanism 71 includes a fourth hydraulic cylinder 711 and a sliding plate 712. The fourth hydraulic cylinder 711 is fixedly installed on the horizontal plate 52. The piston rod of the fourth hydraulic cylinder 711 is horizontally arranged toward the machine body 2. The sliding plate 712 is vertically arranged on the end of the piston rod welded to the fourth hydraulic cylinder 711 away from the cylinder body. The sliding plate 712 is integrally provided with a horizontal sliding portion 713 on the side facing the machine body 2. The lower surface of the sliding portion 713 is in contact with the upper surface of the horizontal plate 52. The sliding assembly includes a fifth hydraulic cylinder 72, which is welded to the sliding portion 713, and a piston rod of the fifth hydraulic cylinder 72 is vertically arranged downward, and the piston rod of the fifth hydraulic cylinder 72 passes downward through the sliding portion 713 and passes downward through the cross plate 52 through the mounting groove 521, and the top end of the connecting rod 61 is welded to the bottom end of the piston rod of the fifth hydraulic cylinder 72, and the electromagnet 62 is fixedly mounted on the bottom end of the connecting rod 61 and arranged horizontally. When one end of the workpiece 11 away from the abutting plate 343 extends out of the discharge port 27, the electromagnet 62 is located directly above the portion of the workpiece 11 extending out of the discharge port 27.

[0056] The fourth hydraulic cylinder 711 drives the sliding plate 712 to move along the length direction of the installation slot 521, the sliding plate 712 drives the sliding part 713 to move along the length direction of the installation slot 521, the sliding plate 712 drives the sliding part 713 to move along the length direction of the installation slot 521, and the sliding part 713 drives the fifth hydraulic cylinder 72 to move along the length direction of the installation slot 521, thereby driving the connecting rod 61 to move along the length direction of the installation slot 521. The extension and retraction of the piston rod of the fifth hydraulic cylinder 72 drives the connecting rod 61 to move in the vertical direction, thereby driving the electromagnet 62 to move along the length direction of the installation slot 521 and in the vertical direction.

[0057] The implementation principle of a punching machine in the embodiment of the present application is as follows: when working, the workpiece 11 is placed on the conveying track 32, and the workpiece 11 is placed on the side of the abutting plate 343 facing the machine body 2 so that the side of the workpiece 11 to be processed faces the machine body 2. Then the driving motor 351 is started, and the driving motor 351 pushes the abutting plate 343 to move toward the machine body 2 through the lead screw 352, the slider 341 and the spring 342 in sequence, so that the abutting plate 343 pushes the workpiece 11 to move toward the machine body 2. When the end of the workpiece 11 facing the machine body 2 passes over the flip plate 41, the second hydraulic cylinder 42 close to the side of the workpiece 11 to be processed is started, and the piston rod of the second hydraulic cylinder 42 moves upward, thereby lifting one end of the flip plate 41 upward, so that the side of the workpiece 11 to be processed is flipped upward, so that the workpiece 11 moves to the other side under the action of gravity, until the workpiece 11 abuts against the first baffle 321 and the second baffle 371, so that the part of the workpiece 11 to be processed is aligned with the corresponding placement groove 223. Then, the workpiece 11 continues to move toward the machine body 2 under the action of the clamping plate 343, and then the part of the workpiece 11 to be processed passes through the placement groove 223. When the workpiece 11 is pressed against the limit plate 25, the push plate 34 continues to move, so that the spring 342 is compressed. When the elastic force of the spring 342 acting on the push plate 34 is greater than the set value, the sensor controls the drive motor 351 to turn off, and the workpiece 11 is fixed at this time.

[0058] Then the first hydraulic cylinder 21 is started, and the piston cylinder of the first hydraulic cylinder 21 moves downward, driving the connecting plate 211 to move downward, and the connecting plate 211 drives the two fixing plates 212 to move downward, and the fixing plate 212 drives the punch 23 and the pressure block 214 to move downward. When the pressure block 214 presses against the workpiece 11, the connecting plate 211 continues to move downward, so that the rubber block 213 is compressed, and the punch 23 presses against the workpiece 11 to break a part of the workpiece 11. Then the piston rod of the first hydraulic cylinder 21 contracts, so that the punch 23 and the pressure block 214 leave the workpiece 11, and then the piston rod of the third hydraulic cylinder 26 contracts, driving the limit plate 25 to move downward, thereby releasing the fixing effect on the workpiece 11, and then under the elastic force of the spring 342, the workpiece 11 is ejected, and at the same time The broken part of the workpiece 11 can be pushed out of the placement groove 223, and then the end of the workpiece 11 away from the clamping plate 343 extends out from the discharge port 27, and then the fifth hydraulic cylinder 72 is started, and the piston rod of the fifth hydraulic cylinder 72 moves downward to drive the connecting rod 61 to move downward, and the connecting rod 61 drives the electromagnet 62 to move downward, so that the workpiece 11 is adsorbed by the electromagnet 62, and then the piston rod of the fourth hydraulic cylinder 711 contracts, and drives the electromagnet 62 to move away from the machine body 2 through the sliding plate 712, the sliding part 713, the fifth hydraulic cylinder 72 and the connecting rod 61 in turn, thereby pulling the workpiece 11 out, and when the workpiece 11 is located directly above the collection box 53, the electromagnet 62 is powered off, so that the workpiece 11 is disengaged from the electromagnet 62 and then falls into the collection box 53.

[0059] For the subsequent workpieces 11, the above operations can be repeated in sequence. When processing the other end of the workpiece 11, the workpiece 11 in the collection box 53 is taken out, and the same operation is performed on the other end of the workpiece 11, thereby obtaining the first semi-finished product 12. It should be noted that the second hydraulic cylinders 42 activated at both ends of the workpiece 11 need to be different. In this processing process, the worker does not need to hold the workpiece 11 tightly during the stamping process, which effectively simplifies the operation process and reduces the labor intensity of the workers.

[0060] 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 punching machine, characterized in that: The invention comprises a machine body (2), a first hydraulic cylinder (21), a workbench (22) and two punches (23) arranged on the machine body (2), wherein the piston rod of the first hydraulic cylinder (21) is arranged vertically downward, and the two punches (23) are arranged on the piston rod of the first hydraulic cylinder (21); the workbench (22) is arranged horizontally and is located below the punches (23); a fixed block (221) and two positioning blocks (222) are arranged on the upper surface of the workbench (22) along the direction in which the workpiece (11) extends; both sides of the fixed block (221) are arranged obliquely, and the distance between the two sides of the fixed block (221) gradually increases from top to bottom; the cross section of the positioning block (222) is triangular, and the two positioning blocks (222) are respectively located on the fixed block On both sides of the workpiece (221), a placement groove (223) is formed between the fixing block (221) and the positioning block (222), and the distance between the two side walls of the placement groove (223) gradually increases from bottom to top. The two placement grooves (223) are respectively located directly below the two punches (23). When the workpiece (11) is placed on the workbench (22), the part of the workpiece (11) to be punched is located in the placement groove (223). One side of the machine body (2) is provided with a conveying device (31) for conveying the workpiece (11) to the workbench (22). When the workpiece (11) is located on the workbench (22), the part of the workpiece (11) to be punched is located in one of the placement grooves (223), and at this time, the conveying device (31) fixes the workpiece (11).

2. A punching machine according to claim 1, characterized in that: A conveying frame (3) is provided on one side of the machine body (2) along the length direction of the placement groove (223); the conveying device (31) comprises a conveying track (32) and a driving mechanism (33); the conveying track (32) is provided on the conveying frame (3) and along the length direction of the placement groove (223); two first baffles (321) along the length direction of the conveying track (32) are provided on the upper surface of the conveying track (32); the two first baffles (321) are both vertically arranged and respectively located near two sides of the conveying track (32); the workpiece (11) is slidably arranged on the conveying track (32); the driving mechanism (33) is used to drive the workpiece (11) to move; the conveying frame (3 ) is provided with a flipping mechanism (4), the flipping mechanism (4) being used to flip the side of the workpiece (11) to be processed upwards, the flipping mechanism (4) being located between the conveying track (32) and the machine body (2), the machine body (2) being provided with a limit plate (25) for positioning the workpiece (11), the limit plate (25) being located on the side of the fixed block (221) facing away from the conveying frame (3), the limit plate (25) being slidably arranged on the machine body (2) in a vertical direction, the machine body (2) being provided with a lifting mechanism for driving the limit plate (25) to move, and when the workpiece (11) is pressed against the limit plate (25), a part of the workpiece (11) is located on the conveying track (32).

3. A punching machine according to claim 2, characterized in that: The driving mechanism (33) comprises a push plate (34) and a driving member (35); the push plate (34) is slidably disposed on the conveying track (32) along the length direction of the conveying track (32) and is used to push the workpiece (11) to move in a direction close to the machine body (2); and the driving member (35) is used to drive the push plate (34) to move.

4. A punching machine according to claim 3, characterized in that: A spring (342) is connected to one side of the push plate (34) facing the machine body (2); an end of the spring (342) away from the push plate (34) is connected to a clamping plate (343); the clamping plate (343) is slidably disposed on the conveying track (32) and is used to push the workpiece (11) to move in a direction close to the machine body (2).

5. A punching machine according to claim 4, characterized in that: The upper surface of the conveying track (32) is provided with a slide groove (322) along the length direction of the conveying track (32); the bottom end of the push plate (34) is provided with a slider (341); the slider (341) is slidably arranged in the slide groove (322); the driving member (35) comprises a driving motor (351) and a lead screw (352); the lead screw (352) is rotatably arranged on the conveying frame (3) and arranged along the length direction of the conveying track (32); the lead screw (352) is fixed along the length direction of the conveying track (32) and is threadedly connected to the slider (341); the driving motor (351) is arranged on the conveying frame (3) and is used to drive the lead screw (352) to rotate.

6. A punching machine according to claim 5, characterized in that: The push plate (34) is provided with a sensor, and when the elastic force of the spring (342) acting on the push plate (34) exceeds a set value, the sensor is used to turn off the drive motor (351).

7. A punching machine according to claim 4, characterized in that: The machine body (2) is provided with a discharge port (27), the discharge port (27) being located on a side of the limit plate (25) facing away from the fixed block (221), and a mounting frame (5) is provided on a side of the machine body (2) facing away from the conveying frame (3), and a discharge device (6) for removing a workpiece (11) is provided on the mounting frame (5).

8. A punching machine according to claim 7, characterized in that: The unloading device (6) comprises a connecting rod (61) and an electromagnet (62); the connecting rod (61) is vertically arranged and slidably arranged on the mounting frame (5) along the length direction of the conveying track (32); the mounting frame (5) is provided with a sliding mechanism (71) for driving the connecting rod (61) to move along the length direction of the conveying track (32); the electromagnet (62) is arranged at the bottom end of the connecting rod (61); when the workpiece (11) moves out of the discharge port (27), the electromagnet (62) is located directly above the workpiece (11).

9. A punching machine according to claim 8, characterized in that: The connecting rod (61) is slidably arranged on the mounting frame (5) in a vertical direction, and a sliding component for driving the connecting rod (61) to move in a vertical direction is arranged on the mounting frame (5).

10. A punching machine according to claim 2, characterized in that: The conveying frame (3) is provided with a horizontal support plate (37), the support plate (37) is located between the conveying frame (3) and the machine body (2), the support plate (37) is provided with two second baffles (371) along the length direction of the conveying track (32), the two second baffles (371) are vertically arranged and respectively located near the two sides of the conveying track (32), the flip mechanism (4) comprises a flip plate (41) and two second hydraulic cylinders (42), the flip plate (41) is placed on the On the support plate (37), the upper surface of the flip plate (41) is flush with the conveying track (32), the two second hydraulic cylinders (42) are both arranged on the conveying frame (3) and are located below the flip plate (41), the piston rods of the two second hydraulic cylinders (42) are both arranged vertically upward, the piston rods of the two second hydraulic cylinders (42) both pass through the support plate (37) upward and contact the flip plate (41), and the two second hydraulic cylinders (42) are distributed along a direction perpendicular to the length of the conveying track (32).

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