Open type double-crankshaft mechanical punching equipment for sheet metal part

Abstract

The invention discloses open type double-crankshaft mechanical punching equipment for sheet metal parts, and belongs to the technical field of punching machine equipment. Comprising a punching device, the punching device is used for punching a to-be-machined part, a feeding device and a discharging device are arranged on the punching device, the feeding device is used for punching the to-be-punched part, and the discharging device is used for sending out the punched part; the self-leveling mechanism is adopted for automatically adjusting the levelness of the punching rotating shaft, and the horizontal included angle of the punching rotating shaft can be automatically adjusted when the punching rotating shaft inclines, so that the punching rotating shaft is always kept strictly horizontal, and the punching precision is improved; the feeding device is matched with the blocking mechanism and the discharging mechanism to push a to-be-punched part to the position below the punching head and center the to-be-punched part, so that the to-be-punched part is accurately machined and positioned, the punched part is automatically transferred to the discharging device after machining is completed, and the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of punching machine equipment, and in particular relates to an open double-crank mechanical punching equipment for sheet metal parts. Background Art

[0002] A double crankshaft mechanical punching machine is a mechanical device used for metal punching processing. Its working principle is to use two crankshafts that move perpendicularly to each other to drive the punch to punch and form metal sheets. This type of punching machine is usually used to produce metal parts, auto parts, home appliance housings, etc. It has the advantages of high production efficiency, good stability, and wide practicality. The punching machine in the prior art can punch parts, use pressure to perform perforations, and punch sheet metal parts to achieve perforation. However, before processing, the parts to be punched need to be manually centered, and the placement accuracy is low. At the same time, manual placement has certain safety risks. At the same time, after the processing is completed, the parts need to be manually removed, which also has safety risks, and it is impossible to identify whether the processing is qualified. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an open double-crank mechanical punching device for sheet metal parts.

[0004] The technical solution adopted to solve the above technical problems is: an open double-crank mechanical punching equipment for sheet metal parts, including a punching device, the punching device includes a lower pressure box, the punching device is used to punch the parts to be processed, the punching device is provided with a feeding device and a discharging device, the feeding device includes a discharge rack, the discharge rack is fixedly installed on the lower pressure box, the feeding device is used to punch the parts to be punched, the discharging device includes a discharging rack, the discharging rack is fixedly installed on the lower pressure box, and the discharging device is used to deliver the parts that have been punched.

[0005] Furthermore, the punching device includes a motor fixedly mounted on the lower pressure box, a motor gear fixedly mounted on the motor shaft of the motor, a punching shaft rotatably mounted in the lower pressure box, the punching shaft and the lower pressure box are rotatably mounted through a ball head, a punching gear fixedly mounted on the punching shaft, the punching gear meshes with the motor gear, a push plate rotatably mounted on the punching shaft, a punching rod rotatably mounted on the push plate, a punching block rotatably mounted on the punching rod, a punching plate fixedly mounted on the punching block, the punching block and the lower pressure box are slidably mounted, the punching plate and the lower pressure box are slidably mounted, a number of punching heads are fixedly mounted on the bottom of the punching plate, and a self-leveling mechanism is provided on the lower pressure box.

[0006] Furthermore, the self-leveling mechanism includes an upper and lower slide frame slidably mounted on the lower pressure box, a punching shaft rotatably mounted on the upper and lower slide frames, an adjusting block fixedly mounted on the upper and lower slide frames, an outer rotating rod rotatably mounted on the adjusting block, a slide plate rotatably mounted on the outer rotating rod, the slide plate slidably mounted on the lower pressure box, an inner rotating rod rotatably mounted on the slide plate, a gear plate rotatably mounted on the inner rotating rod, the gear plate slidably mounted on the lower pressure box, a screw rod rotatably mounted on the screw rod, a screw rod gear fixedly mounted on the screw rod, the screw rod gear meshes with the gear plate, a lifting block slidably mounted in the lower pressure box, the punching shaft rotatably mounted on the lifting block, and a threaded transmission is formed between the lifting block and the screw rod.

[0007] The rotation of the motor drives the motor gear to rotate, thereby driving the punching shaft to rotate through the punching gear, thereby driving the push plate to rotate, thereby driving the punching rod to rotate, thereby driving the punching block to rise and fall along the lower pressure box, thereby driving the punching plate and the punching head to rise and fall, and punching the parts under the punching head.

[0008] When the punching shaft is not in a horizontal state, for example, the punching shaft is closer to the punching gear side and lower than the other side, the adjusting block drives the outer rotating rod to rotate, thereby driving the slide plate to rise along the lower pressure box, thereby driving the inner rotating rod to rotate, thereby driving the gear plate to slide, thereby driving the screw gear and the screw to rotate, thereby driving the lifting block to rise, so that the side of the punching shaft close to the punching gear rises, so that the punching shaft remains in a horizontal state.

[0009] Furthermore, the feeding device includes a plurality of convex balls rotatably mounted on the unloading rack, an electric cylinder is fixedly mounted on the unloading rack, a descending plate is fixedly mounted on the top of the electric cylinder, a vertical rack is fixedly mounted on the descending plate, a transmission gear is rotatably mounted on the unloading rack, the vertical rack is meshed with the transmission gear, a trapezoidal push plate is slidably mounted on the unloading rack, a transverse rack is fixedly mounted on the trapezoidal push plate, the transverse rack is meshed with the transmission gear, and a discharging mechanism and a blocking mechanism are provided on the unloading rack.

[0010] Furthermore, the discharging mechanism includes a descending block slidably mounted on the material discharge rack, a slope block fixedly mounted on the descending block, a material push plate slidably mounted on the descending block, a push plate spring is arranged between the material push plate and the descending block, and a push spring is arranged between the descending block and the descending plate.

[0011] Furthermore, the blocking mechanism includes a blocking plate slidably mounted on the material discharging rack, a rotating plate is rotatably mounted on the material discharging rack, the descending block is rotatably mounted on the waist hole of the rotating plate, and the blocking plate is rotatably mounted on the waist hole of the rotating plate.

[0012] The parts to be processed are placed on the material rack, located on several convex balls. The electric cylinder contracts to drive the descending plate to rise, thereby driving the vertical rack to rise, thereby driving the transmission gear to rotate, thereby driving the horizontal rack and the trapezoidal push plate to slide inward, and the slope of the trapezoidal push plate pushes the parts to be processed toward the material push plate.

[0013] The descending plate will pull the descending block down through the push spring, but before the material push plate is pushed by the part to be processed, the descending block cannot descend and the push spring is stretched. When the part to be processed pushes the material push plate to ensure the center of the part, the material push plate is pushed to slide along the descending block, and the push plate spring is compressed. When the material push plate is pushed away from the material rack, the push spring contracts, driving the descending block and the material push plate to descend together, and then the trapezoidal push plate continues to push the part forward.

[0014] When the descending block descends, it drives the rotating plate to rotate, thereby driving the blocking plate to rise. When the part is pushed to contact with the blocking plate, the pushing is stopped and the part reaches the working position.

[0015] When the punching process of the parts is completed, the electric cylinder contracts, driving the descending plate to rise, thereby driving the descending block and the ramp block to rise, thereby lifting the processed parts. At the same time, the descending block rises and drives the blocking plate to descend through the rotating plate, and the parts are slid onto the discharge roller through the slope of the ramp block. After the ramp block rises, the push plate spring rebounds, driving the material push plate to pop out and restore to the initial state.

[0016] Furthermore, the discharging device includes a discharging motor fixedly mounted on the discharging rack, a discharging motor gear is fixedly mounted on the motor shaft of the discharging motor, a plurality of discharging rollers are rotatably mounted on the discharging rack, roller gears are fixedly mounted on the discharging rollers, a transmission gear is also fixedly mounted on the discharging roller closest to the discharging motor side, the transmission gear is meshed with the discharging motor gear, a transmission belt is wrapped around the roller gear, a detection sensor is fixedly mounted on the discharging rack, and an elimination mechanism is arranged on the discharging rack.

[0017] Furthermore, the elimination mechanism includes an elimination motor fixedly mounted on the discharging rack, a main gear is fixedly mounted on the motor shaft of the elimination motor, a plurality of elimination rollers are rotatably mounted on the discharging rack, roller gears are fixedly mounted on the elimination rollers, a large gear is also fixedly mounted on the elimination rollers above the elimination motor, the large gear is meshed with the main gear, a transmission belt is wrapped around the outside of the roller gear, a bottom electric cylinder is fixedly mounted on the discharging rack, a lifting plate is fixedly mounted on the top of the bottom electric cylinder, a guide rod is fixedly mounted on the lifting plate, and the guide rod can pass through the gap of the discharging roller.

[0018] The processed parts fall onto the discharge roller, and the detection sensor detects whether the processing is qualified. If the processing is qualified, the discharge motor rotates to drive the discharge motor gear to rotate, thereby driving the transmission gear to rotate, thereby driving the roller gear and the discharge roller to rotate, and the transmission belt drives each discharge roller and roller gear to rotate, and transports the parts out from the front of the discharge roller.

[0019] If the detection sensor detects that the processing is unqualified, the bottom electric cylinder extends out, driving the lifting plate and the guide rod to rise. In the process of the discharge roller transmitting the parts forward, the parts are blocked by the guide rod and reach the elimination roller. The elimination motor rotates to drive the main gear to rotate, thereby driving the large gear and roller gear to rotate, thereby driving each roller gear and elimination roller to rotate through the transmission belt, and the unqualified parts are transported out of the elimination roller.

[0020] The beneficial effects of the present invention are as follows: (1) The present invention adopts a self-leveling mechanism to automatically adjust the horizontality of the punching shaft. When the punching shaft is tilted, the horizontal angle of the punching shaft can be automatically adjusted, so that the punching shaft always maintains a strict level, thereby improving the accuracy of punching, and punching is performed by pressurization, and punching is achieved by punching sheet metal parts; (2) The feeding device provided in the present invention cooperates with the blocking mechanism and the discharging mechanism to push the parts to be punched under the punching head and center the parts to be punched, thereby accurately processing and positioning the parts to be punched. After the processing is completed, the punched parts are automatically transferred to the discharging device, and the degree of automation is high; (3) The discharging device provided in the present invention can detect the punched parts. If the processing is qualified, they are directly output. If the processing is unqualified, the parts are output through another channel, thereby effectively controlling the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 2 The structure diagram of the punching device of the present invention is shown in FIG. Figure 1 .

[0023] Figure 3 The structure diagram of the punching device of the present invention is shown in FIG. Figure 2 .

[0024] Figure 4 The structure of the feeding device of the present invention is shown in FIG. Figure 1 .

[0025] Figure 5 It is a structural schematic diagram of the blocking mechanism of the present invention.

[0026] Figure 6 The structure of the feeding device of the present invention is shown in FIG. Figure 2 .

[0027] Figure 7 The structure of the discharging device of the present invention is shown in FIG. Figure 1 .

[0028] Figure 8 The structure of the discharging device of the present invention is shown in FIG. Figure 2 .

[0029] Fig. 9 The structure of the discharging device of the present invention is shown in FIG. Figure 3 .

[0030] Figure numerals: 101-lower pressure box; 102-motor; 103-motor gear; 104-punching gear; 105-punching shaft; 106-upper and lower slide frames; 107-adjusting block; 108-outer rotating rod; 109-slide plate; 110-inner rotating rod; 111-gear plate; 112-screw gear; 113-screw; 114-lifting block; 115-push plate; 116-punching rod; 117-punching block; 118-punching plate; 119-punching head; 201-discharging rack; 202-convex ball; 203-electric cylinder; 204-descending plate; 205-vertical rack; 206-transmission gear; 207-horizontal rack ;208-trapezoidal push plate;209-push spring;210-descending block;211-rotating plate;212-blocking plate;213-slope block;214-material push plate;215-push plate spring;301-discharging rack;302-discharging motor;303-discharging motor gear;304-transmission gear;305-detection sensor;306-discharging roller;307-roller gear;308-elimination roller;309-elimination motor;310-main gear;311-large gear;312-transmission belt;313-roller gear;314-transmission belt;315-bottom electric cylinder;316-lifting plate;317-guide rod. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0032] like Figure 1 As shown, an open double crank mechanical punching device for sheet metal parts in this embodiment is composed of a punching device, a feeding device and a discharging device. The punching device includes a lower pressing box 101, which is used to punch the parts to be processed. The punching device is provided with a feeding device and a discharging device. The feeding device includes a discharge rack 201, which is fixedly mounted on the lower pressing box 101. The feeding device is used to punch the parts to be punched. The discharging device includes a discharging rack 301, which is fixedly mounted on the lower pressing box 101. The discharging device is used to deliver the parts that have been punched.

[0033] like Figure 2 , Figure 3As shown, the punching device includes a motor 102 fixedly mounted on a lower pressure box 101, a motor gear 103 fixedly mounted on the motor shaft of the motor 102, a punching shaft 105 rotatably mounted in the lower pressure box 101, the punching shaft 105 and the lower pressure box 101 are rotatably mounted through a ball head, a punching gear 104 is fixedly mounted on the punching shaft 105, the punching gear 104 is meshed with the motor gear 103, a push plate 115 is rotatably mounted on the punching shaft 105, a punching rod 116 is rotatably mounted on the push plate 115, a punching block 117 is rotatably mounted on the punching rod 116, a punching plate 118 is fixedly mounted on the punching block 117, the punching block 117 is slidably mounted on the lower pressure box 101, the punching plate 118 is slidably mounted on the lower pressure box 101, a plurality of punching heads 119 are fixedly mounted on the bottom of the punching plate 118, and a self-leveling mechanism is provided on the lower pressure box 101.

[0034] like Figure 2 , Figure 3 As shown, the self-leveling mechanism includes an upper and lower slide frame 106 slidably mounted on the lower pressure box 101, the punching shaft 105 is rotatably mounted with the upper and lower slide frames 106, an adjusting block 107 is fixedly mounted on the upper and lower slide frames 106, an outer rotating rod 108 is rotatably mounted on the adjusting block 107, a slide plate 109 is rotatably mounted on the outer rotating rod 108, the slide plate 109 is slidably mounted with the lower pressure box 101, an inner rotating rod 110 is rotatably mounted on the slide plate 109, a gear plate 111 is rotatably mounted on the inner rotating rod 110, the gear plate 111 is slidably mounted with the lower pressure box 101, a screw rod 113 is rotatably mounted on the lower pressure box 101, a screw gear 112 is fixedly mounted on the screw rod 113, the screw gear 112 is meshed with the gear plate 111, a lifting block 114 is slidably mounted in the lower pressure box 101, the punching shaft 105 is rotatably mounted with the lifting block 114, and the lifting block 114 and the screw rod 113 form a threaded transmission.

[0035] The motor 102 rotates to drive the motor gear 103 to rotate, thereby driving the punching shaft 105 to rotate through the punching gear 104, thereby driving the push plate 115 to rotate, thereby driving the punching rod 116 to rotate, thereby driving the punching block 117 to rise and fall along the lower pressure box 101, thereby driving the punching plate 118 and the punching head 119 to rise and fall, and punching the parts below the punching head 119.

[0036] When the punching shaft 105 is not in a horizontal state, for example, the punching shaft 105 is closer to the punching gear 104 and lower than the other side, the adjusting block 107 drives the outer rotating rod 108 to rotate, thereby driving the slide plate 109 to rise along the lower pressure box 101, thereby driving the inner rotating rod 110 to rotate, thereby driving the gear plate 111 to slide, thereby driving the screw gear 112 and the screw 113 to rotate, thereby driving the lifting block 114 to rise, so that the side of the punching shaft 105 close to the punching gear 104 rises, so that the punching shaft 105 remains in a horizontal state.

[0037] like Figure 4-Figure 6 As shown, the feeding device includes a plurality of convex balls 202 rotatably mounted on a discharge rack 201, an electric cylinder 203 is fixedly mounted on the discharge rack 201, a descending plate 204 is fixedly mounted on the top of the electric cylinder 203, a vertical rack 205 is fixedly mounted on the descending plate 204, a transfer gear 206 is rotatably mounted on the discharge rack 201, the vertical rack 205 is meshed with the transfer gear 206, a trapezoidal push plate 208 is slidably mounted on the discharge rack 201, a transverse rack 207 is fixedly mounted on the trapezoidal push plate 208, the transverse rack 207 is meshed with the transfer gear 206, and a discharging mechanism and a blocking mechanism are provided on the discharge rack 201.

[0038] like Figure 4-Figure 6 As shown, the discharging mechanism includes a descending block 210 slidably mounted on the material discharging rack 201, a slope block 213 is fixedly mounted on the descending block 210, a material pushing plate 214 is slidably mounted on the descending block 210, a pushing plate spring 215 is arranged between the material pushing plate 214 and the descending block 210, and a pushing spring 209 is arranged between the descending block 210 and the descending plate 204.

[0039] like Figure 4-Figure 6 As shown, the blocking mechanism includes a blocking plate 212 slidably mounted on the material discharging rack 201, a rotating plate 211 is rotatably mounted on the material discharging rack 201, the descending block 210 is rotatably mounted on the waist hole of the rotating plate 211, and the blocking plate 212 is rotatably mounted on the waist hole of the rotating plate 211.

[0040] The parts to be processed are placed on the material rack 201, located on a number of convex balls 202. The electric cylinder 203 contracts to drive the descending plate 204 to rise, thereby driving the vertical rack 205 to rise, thereby driving the transmission gear 206 to rotate, thereby driving the horizontal rack 207 and the trapezoidal push plate 208 to slide inward, and the slope of the trapezoidal push plate 208 pushes the parts to be processed toward the material push plate 214.

[0041] The descending plate 204 will pull the descending block 210 down by pushing the spring 209, but before the material push plate 214 is pushed by the part to be processed, the descending block 210 cannot descend, and the pushing spring 209 is stretched. When the part to be processed pushes the material push plate 214, the part is centered, and the material push plate 214 is pushed to slide along the descending block 210. The push plate spring 215 is compressed. When the material push plate 214 is pushed away from the material rack 201, the pushing spring 209 contracts, driving the descending block 210 and the material push plate 214 to descend together, and then the trapezoidal push plate 208 continues to push the part forward.

[0042] When the descending block 210 descends, the rotating plate 211 is driven to rotate, thereby driving the blocking plate 212 to rise. When the part is pushed to contact with the blocking plate 212, the pushing is stopped and the part reaches the working position.

[0043] When the punching process of the part is completed, the electric cylinder 203 contracts, driving the descending plate 204 to rise, thereby driving the descending block 210 and the slope block 213 to rise, thereby lifting the processed part. At the same time, the descending block 210 rises and drives the blocking plate 212 to descend through the rotating plate 211, and the part is slid onto the discharge roller 306 through the slope block 213. After the slope block 213 rises, the push plate spring 215 rebounds, driving the material push plate 214 to pop out and restore to the initial state.

[0044] like Figure 7-Figure 9 As shown, the discharging device includes a discharging motor 302 fixedly mounted on a discharging frame 301, a discharging motor gear 303 is fixedly mounted on the motor shaft of the discharging motor 302, a plurality of discharging rollers 306 are rotatably mounted on the discharging frame 301, roller gears 307 are fixedly mounted on the discharging rollers 306, a transmission gear 304 is also fixedly mounted on the discharging roller 306 closest to the discharging motor 302, the transmission gear 304 is meshed with the discharging motor gear 303, a transmission belt 312 is wrapped around the roller gear 307, a detection sensor 305 is fixedly mounted on the discharging frame 301, and an elimination mechanism is arranged on the discharging frame 301.

[0045] like Figure 7-Figure 9 As shown, the elimination mechanism includes an elimination motor 309 fixedly mounted on the discharge rack 301, a main gear 310 is fixedly mounted on the motor shaft of the elimination motor 309, a plurality of elimination rollers 308 are rotatably mounted on the discharge rack 301, roller gears 313 are fixedly mounted on the elimination rollers 308, a large gear 311 is also fixedly mounted on the elimination rollers 308 above the elimination motor 309, the large gear 311 is meshed with the main gear 310, a transmission belt 314 is wrapped around the roller gear 313, a bottom electric cylinder 315 is fixedly mounted on the discharge rack 301, a lifting plate 316 is fixedly mounted on the top of the bottom electric cylinder 315, a guide rod 317 is fixedly mounted on the lifting plate 316, and the guide rod 317 can pass through the gap of the discharge roller 306.

[0046] The processed parts fall onto the discharge roller 306, and the detection sensor 305 detects whether the processing is qualified. If the processing is qualified, the discharge motor 302 rotates to drive the discharge motor gear 303 to rotate, thereby driving the transmission gear 304 to rotate, thereby driving the roller gear 307 and the discharge roller 306 to rotate, and the transmission belt 312 drives each discharge roller 306 and the roller gear 307 to rotate, and transports the parts out from the front of the discharge roller 306.

[0047] If the detection sensor 305 detects that the processing is unqualified, the bottom electric cylinder 315 extends out, driving the lifting plate 316 and the guide rod 317 to rise. In the process of the discharge roller 306 transmitting the parts forward, the parts are blocked by the guide rod 317 and reach the elimination roller 308. The elimination motor 309 rotates to drive the main gear 310 to rotate, thereby driving the large gear 311 and the roller gear 313 to rotate, thereby driving each roller gear 313 and the elimination roller 308 to rotate through the transmission belt 314, and the unqualified parts are transported out of the elimination roller 308.

[0048] The working principle of this embodiment is as follows: the descending plate 204 will pull the descending block 210 down through the push spring 209. Before the material push plate 214 is pushed by the part to be processed, the descending block 210 cannot descend, and the push spring 209 is stretched. After the part to be processed pushes the material push plate 214, the center of the part is ensured, and the material push plate 214 is pushed to slide along the descending block 210, and the push plate spring 215 is compressed. When the material push plate 214 is pushed away from the material rack 201, the push spring 209 contracts, driving the descending block 210 and the material push plate 214 to descend together, and then the trapezoidal push plate 208 continues to push the part forward. When the descending block 210 descends, it will drive the rotating plate 211 to rotate, thereby driving the blocking plate 212 to rise. When the part is pushed to contact the blocking plate 212, the push is stopped at this time, and the part reaches the working position. The motor 102 rotates to drive the motor gear 103 to rotate, thereby driving the punching shaft 105 to rotate through the punching gear 104, thereby driving the push plate 115 to rotate, thereby driving the punching rod 116 to rotate, thereby driving the punching block 117 to rise and fall along the lower pressure box 101, thereby driving the punching plate 118 and the punching head 119 to rise and fall, and punching the parts below the punching head 119. When the punching shaft 105 is not in a horizontal state, for example, the side of the punching shaft 105 close to the punching gear 104 is lower than the other side, at this time, the adjustment block 107 drives the outer rotating rod 108 to rotate, thereby driving the slide plate 109 to rise along the lower pressure box 101, thereby driving the inner rotating rod 110 to rotate, thereby driving the gear plate 111 to slide, thereby driving the screw gear 112 and the screw 113 to rotate, thereby driving the lifting block 114 to rise, so that the side of the punching shaft 105 close to the punching gear 104 rises, so that the punching shaft 105 remains in a horizontal state. When the punching process of the parts is completed, the electric cylinder 203 contracts, driving the descending plate 204 to rise, thereby driving the descending block 210 and the ramp block 213 to rise, thereby lifting the processed parts. At the same time, the descending block 210 rises and drives the blocking plate 212 to descend through the rotating plate 211, and slides the parts onto the discharge roller 306 through the slope of the ramp block 213. After the ramp block 213 rises, the push plate spring 215 rebounds, driving the material push plate 214 to pop out and restore the initial state. The processed parts fall onto the discharge roller 306, and the detection sensor 305 detects whether the processing is qualified. If the processing is qualified, the discharge motor 302 rotates to drive the discharge motor gear 303 to rotate, thereby driving the transmission gear 304 to rotate, thereby driving the roller gear 307 and the discharge roller 306 to rotate, and the transmission belt 312 drives each discharge roller 306 and the roller gear 307 to rotate, and the parts are transported out from the front of the discharge roller 306.If the detection sensor 305 detects that the processing is unqualified, the bottom electric cylinder 315 extends out, driving the lifting plate 316 and the guide rod 317 to rise. In the process of the discharge roller 306 transmitting the parts forward, the parts are blocked by the guide rod 317 and reach the elimination roller 308. The elimination motor 309 rotates to drive the main gear 310 to rotate, thereby driving the large gear 311 and the roller gear 313 to rotate, thereby driving each roller gear 313 and the elimination roller 308 to rotate through the transmission belt 314, and the unqualified parts are transported out of the elimination roller 308.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An open double-crank mechanical punching device for sheet metal parts, comprising a punching device, characterized in that: The punching device comprises a lower pressing box (101), the punching device is used to punch holes in the parts to be processed, the punching device is provided with a feeding device and a discharging device, the feeding device comprises a discharge rack (201), the discharge rack (201) is fixedly mounted on the lower pressing box (101), the feeding device is used to punch holes in the parts to be punched, the discharging device comprises a discharge rack (301), the discharge rack (301) is fixedly mounted on the lower pressing box (101), and the discharging device is used to deliver the parts that have been punched; The punching device comprises a motor (102) fixedly mounted on a lower pressure box (101), a motor gear (103) fixedly mounted on the motor shaft of the motor (102), a punching shaft (105) rotatably mounted in the lower pressure box (101), the punching shaft (105) and the lower pressure box (101) being rotatably mounted via a ball head, a punching gear (104) fixedly mounted on the punching shaft (105), the punching gear (104) being meshed with the motor gear (103), and the punching shaft (105) being rotatably mounted on the punching shaft (105). A push plate (115) is movably mounted, a punching rod (116) is rotatably mounted on the push plate (115), a punching block (117) is rotatably mounted on the punching rod (116), a punching plate (118) is fixedly mounted on the punching block (117), the punching block (117) is slidably mounted on the lower pressure box (101), the punching plate (118) is slidably mounted on the lower pressure box (101), a plurality of punching heads (119) are fixedly mounted on the bottom of the punching plate (118), and a self-leveling mechanism is provided on the lower pressure box (101).

2. The open double crankshaft mechanical punching device for sheet metal parts according to claim 1, characterized in that: The self-leveling mechanism comprises an upper and lower slide frame (106) slidably mounted on the lower pressure box (101), a punching shaft (105) rotatably mounted on the upper and lower slide frame (106), an adjustment block (107) fixedly mounted on the upper and lower slide frame (106), an outer rotating rod (108) rotatably mounted on the adjustment block (107), a slide plate (109) rotatably mounted on the outer rotating rod (108), the slide plate (109) slidably mounted on the lower pressure box (101), an inner rotating rod (110) rotatably mounted on the slide plate (109), and the inner rotating rod (111) A gear plate (111) is rotatably mounted on the lower pressure box (101), the gear plate (111) and the lower pressure box (101) are slidably mounted, a screw rod (113) is rotatably mounted on the lower pressure box (101), a screw rod gear (112) is fixedly mounted on the screw rod (113), the screw rod gear (112) is meshed with the gear plate (111), a lifting block (114) is slidably mounted in the lower pressure box (101), the punching shaft (105) and the lifting block (114) are rotatably mounted, and the lifting block (114) and the screw rod (113) form a threaded transmission.

3. The open double crank mechanical punching device for sheet metal parts according to claim 1, characterized in that: The feeding device comprises a plurality of convex balls (202) rotatably mounted on a material discharging frame (201); an electric cylinder (203) is fixedly mounted on the material discharging frame (201); a descending plate (204) is fixedly mounted on the top of the electric cylinder (203); a vertical rack (205) is fixedly mounted on the descending plate (204); a transmission gear (206) is rotatably mounted on the material discharging frame (201); the vertical rack (205) meshes with the transmission gear (206); a trapezoidal push plate (208) is slidably mounted on the material discharging frame (201); a transverse rack (207) is fixedly mounted on the trapezoidal push plate (208); the transverse rack (207) meshes with the transmission gear (206); and a discharging mechanism and a blocking mechanism are arranged on the material discharging frame (201).

4. The open double crankshaft mechanical punching device for sheet metal parts according to claim 3, characterized in that: The material discharging mechanism comprises a descending block (210) slidably mounted on the material discharging frame (201), a slope block (213) being fixedly mounted on the descending block (210), a material pushing plate (214) being slidably mounted on the descending block (210), a pushing plate spring (215) being arranged between the material pushing plate (214) and the descending block (210), and a pushing spring (209) being arranged between the descending block (210) and the descending plate (204).

5. The open double crankshaft mechanical punching device for sheet metal parts according to claim 4, characterized in that: The blocking mechanism comprises a blocking plate (212) slidably mounted on the material discharging rack (201); a rotating plate (211) is rotatably mounted on the material discharging rack (201); the descending block (210) is rotatably mounted on the waist hole of the rotating plate (211); and the blocking plate (212) is rotatably mounted on the waist hole of the rotating plate (211).

6. The open double crank mechanical punching device for sheet metal parts according to claim 1, characterized in that: The discharging device comprises a discharging motor (302) fixedly mounted on a discharging frame (301); a discharging motor gear (303) is fixedly mounted on the motor shaft of the discharging motor (302); a plurality of discharging rollers (306) are rotatably mounted on the discharging frame (301); roller gears (307) are fixedly mounted on the discharging rollers (306); a transmission gear (304) is also fixedly mounted on the discharging roller (306) closest to the discharging motor (302); the transmission gear (304) is meshed with the discharging motor gear (303); a transmission belt (312) is wound around the roller gear (307); a detection sensor (305) is fixedly mounted on the discharging frame (301); and an elimination mechanism is arranged on the discharging frame (301).

7. An open double crankshaft mechanical punching device for sheet metal parts according to claim 6, characterized in that: The elimination mechanism comprises an elimination motor (309) fixedly mounted on a discharging frame (301), a main gear (310) fixedly mounted on the motor shaft of the elimination motor (309), a plurality of elimination rollers (308) rotatably mounted on the discharging frame (301), roller gears (313) fixedly mounted on the elimination rollers (308), a large gear (311) fixedly mounted on the elimination rollers (308) above the elimination motor (309), the large gear (311) meshing with the main gear (310), a transmission belt (314) wound around the roller gears (313), a bottom electric cylinder (315) fixedly mounted on the discharging frame (301), a lifting plate (316) fixedly mounted on the top of the bottom electric cylinder (315), a guide rod (317) fixedly mounted on the lifting plate (316), and the guide rod (317) can pass through the gap of the discharging rollers (306).

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