Automatic punching machine

Abstract

The utility model relates to an automatic punching machine which comprises a machine base, and the machine base is provided with two conveying material channels which are parallel to each other and used for containing sectional materials. A traction mechanism used for transferring the sectional materials, a punching mechanism used for punching the sectional materials and a cutting mechanism used for cutting the punched sectional materials section by section are sequentially arranged on the machine base in the feeding direction of the conveying material channel. The traction mechanism comprises a traction base and a traction driving device used for controlling the traction base to slide in a reciprocating mode in the feeding direction. The traction base is provided with a first upper material clamping device arranged above the two conveying material channels and first side material clamping devices arranged on the left sides and the right sides of the conveying material channels. According to the punching machine, automatic feeding, punching, cutting and other machining procedures can be carried out on profiles, the automation degree of machining is improved, and the production efficiency of products is improved.

Description

Technical Field

[0001] The utility model relates to the field of punching machines, in particular to an automatic punching and cutting machine. Background Art

[0002] Punching is a common process in industrial production. With the development of technology and the optimization of structure, punching equipment, in addition to the punching function, also combines automatic loading, automatic unloading, and punching in multiple directions at the same time. The current punching machine structure, such as Chinese patent number CN201320800088.6, disclosed a new type of punching machine on 2014-06-04, which mainly includes a frame, a punching mechanism, a clamping and feeding mechanism and a controller. During use, the clamping and feeding mechanism usually clamps the workpiece and pulls and feeds the material by applying a force from top to bottom. However, when the height of the workpiece to be punched is greater than the width, the clamping method easily causes the workpiece to shift, which ultimately affects the punching effect. Therefore, punching can only be performed using punching machines of different structures according to different workpieces. In addition, the current punching machines generally use a single conveying channel, which causes the punching machine to have problems such as low punching efficiency. Summary of the invention

[0003] The utility model aims to provide an automatic punching and cutting machine with simple and reasonable structure, convenient installation and stable structure.

[0004] An automatic punching and shearing machine comprises a machine base, on which are arranged two mutually parallel conveying channels for placing profiles, and on which are arranged a traction mechanism for transferring the profiles, a punching mechanism for punching the profiles, and a cutting mechanism for cutting the punched profiles into sections in sequence along the feeding direction of the conveying channels; the traction mechanism comprises a traction seat and a traction drive device for controlling the traction seat to slide back and forth along the feeding direction, and the traction seat is provided with a first upper clamping device placed above the two conveying channels and a first side clamping device placed on the left and right sides of the conveying channels.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the first upper clamping device includes a supporting vertical plate placed between two conveying channels, and the two sides of the supporting vertical plate are respectively connected to the first upper clamping cylinder, the downward piston shaft of the first upper clamping cylinder is connected to the upper clamping plate, and the traction seat is connected to a lower clamping plate corresponding to the upper clamping plate, and the conveying channel is provided with a linear avoidance groove for the lower clamping plate to slide.

[0007] As a further solution, the first side clamping device includes two first side clamping cylinders, one connected to the traction seat on the left and one connected to the right. The piston shafts of the two first side clamping cylinders moving in opposite directions are connected to an outer clamping plate. The outer clamping plate moves between the upper clamping plate and the lower clamping plate and cooperates with the supporting vertical plate to clamp the profile.

[0008] As a further solution, the punching mechanism includes a gantry and a stamping cylinder fixed on the gantry, an upper punching mold is connected to the piston shaft of the stamping cylinder, a lower punching mold is fixed below the upper punching mold, a guide assembly is arranged between the lower punching mold and the upper punching mold, and the gantry is also provided with a second upper clamping device and a second side clamping device which cooperate with the lower punching mold.

[0009] As a further solution, the second upper clamping device includes a second upper clamping cylinder connected in front of the upper punching die, the downward piston shaft of the second upper clamping cylinder is connected to a middle pressure material locking plate that moves up and down relative to the lower punching die, and the middle pressure material locking plate is connected to two middle pressure material locking blocks;

[0010] The second side clamping device includes two second side clamping cylinders, one on the left and one on the right, which are arranged on both sides of the lower punching die. The piston shafts of the two second side clamping cylinders that move towards each other are connected to profile positioning clamps. Positioning grooves that cooperate with the profile positioning clamps are opened on both sides of the lower punching die.

[0011] As a further solution, the upper punching die comprises an upper die base and a lifting floating seat, the upper die base is connected with a punching needle and a floating seat guide column, the lifting floating seat is slidably connected to the upper die base through the floating seat guide column, and the floating seat guide column sleeve is provided with a compression spring that abuts between the upper die base and the lifting floating seat, and the lifting floating seat is provided with an avoidance hole corresponding to the punching needle; the lower punching die comprises a lower die base and a lower die bottom plate fixed on the lower die base, and the lower die bottom plate is provided with a die hole corresponding to the punching needle;

[0012] As a further solution, the guide assembly includes main vertical guide columns fixedly connected to the two ends of the lower mold base and a central vertical guide column fixed in the middle of the lower mold base, the upper mold base is provided with a first linear guide hole that cooperates with the main vertical guide column, and the lifting floating seat is provided with a second linear guide hole that cooperates with the central vertical guide column.

[0013] As a further solution, a first connecting piece is provided on the piston shaft of the stamping cylinder, and a second connecting piece connected to the first connecting piece is provided on the top of the upper punching die. The upper punching die is detachably connected to the piston shaft of the stamping cylinder by cooperating with the first connecting piece through the second connecting piece.

[0014] As a further solution, the cutting mechanism includes a saw blade device for sawing the profile and a workpiece clamping device for fixing the profile during sawing;

[0015] The saw blade device includes a motor slide and a cutting drive device for controlling the motor slide to move transversely relative to the conveying channel. The motor slide is provided with a saw blade motor, and the output shaft of the saw blade motor is fixedly connected to the saw blade.

[0016] The workpiece clamping device comprises a support frame connected to the machine base, and the support frame is provided with a third upper clamping device arranged above the two conveying channels and a third side clamping device arranged on the left and right sides of the conveying channels.

[0017] As a further solution, the third upper clamping device includes two third upper clamping cylinders fixed on the support frame, the downward piston shafts of the two third upper clamping cylinders are connected to the rear material pressing lock plate, and the corresponding conveying channel on each rear material pressing lock plate is connected to two upper material pressing blocks, and a saw blade avoidance groove is formed between the two upper material pressing blocks;

[0018] The third side clamping device includes two groups of cylinder groups arranged on the left and right sides of the support frame, each group of cylinder groups includes two third side clamping cylinders arranged at intervals before and after the saw blade moving path, and a side clamping block is connected to the piston shaft of each third side clamping cylinder.

[0019] As a further solution, the traction mechanism also includes a pressing bracket connected to the front ends of the two conveying channels and a front pressing cylinder fixed on the pressing bracket, and a front pressing locking plate is connected to the downward piston shaft of the front pressing cylinder, and the front pressing locking plate is respectively connected to front pressing blocks corresponding to the two conveying channels.

[0020] The beneficial effects of the utility model are as follows:

[0021] This automatic punching and cutting machine first uses a traction mechanism to automatically feed the profile, and the traction mechanism also includes a first upper clamping device and a second side clamping device, which can clamp profiles or other materials of different shapes, making the punching machine more applicable and improving practicality. The profile or other materials are then automatically punched through the punching mechanism, which can improve the accuracy of punching, and the upper and lower punching dies of the punching mechanism can be disassembled and replaced, so that the punching machine can meet different punching needs. Finally, the punched model is cut off in sections according to the preset length through the cutting mechanism, so that the quality of the formed product is more stable. The entire production process has a high degree of automation, which improves the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0023] Figure 2It is a schematic diagram of the traction mechanism structure in the utility model.

[0024] Figure 3 It is a schematic diagram of the punching mechanism structure in the utility model.

[0025] Figure 4 It is a schematic diagram of the exploded structure of the punching mechanism in the utility model.

[0026] Figure 5 It is a schematic diagram of the cutting mechanism structure in the utility model.

[0027] Figure 6 It is a schematic diagram of the structure of the workpiece clamping device in the utility model.

[0028] Figure 7 It is a schematic diagram of the front pressing structure of the traction mechanism in the utility model.

[0029] Figure 8 It is a schematic diagram of the structure of the cutting drive device in the utility model. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figures 1 to 8 As shown, an automatic punching and shearing machine includes a machine base 1, on which are arranged two mutually parallel conveying channels 2 for placing profiles, and on which are arranged a traction mechanism 3 for transferring the profiles, a punching mechanism 4 for punching the profiles, and a cutting mechanism 5 for cutting the punched profiles into sections in sequence along the feeding direction of the conveying channels 2; the traction mechanism 3 includes a traction seat 31 and a traction driving device 32 for controlling the traction seat 31 to slide back and forth along the feeding direction, and the traction seat 31 is provided with a first upper clamping device 33 placed above the two conveying channels 2 and a first side clamping device 34 placed on the left and right sides of the conveying channels 2.

[0032] The first upper clamping device 33 includes a supporting vertical plate 331 placed between the two conveying channels 2, and the first upper clamping cylinder 332 is connected to the two sides of the supporting vertical plate 331 respectively, and the downward piston shaft of the first upper clamping cylinder 332 is connected to the upper clamping plate 333, and the traction seat 31 is connected to the corresponding upper clamping plate 333 with a lower clamping plate 334, and the conveying channel 2 is provided with a linear avoidance groove 201 for the lower clamping plate 334 to slide, so that the traction mechanism 3 can clamp and pull the flat profile.

[0033] The first side clamping device 34 includes two first side clamping cylinders 341 connected to the traction seat 31 on the left and the right. The piston shafts of the two first side clamping cylinders 341 that move in opposite directions are connected to an outer clamping plate 342. The outer clamping plate 342 moves between the upper clamping plate 333 and the lower clamping plate 334, and cooperates with the supporting vertical plate 331 to clamp the profile, so that the traction mechanism 3 can clamp and pull the upright profile or other raw materials.

[0034] The punching mechanism 4 includes a gantry 41 and a punching cylinder 42 fixed on the gantry 41, an upper punching die 43 is connected to the piston shaft of the punching cylinder 42, a lower punching die 44 is fixedly provided below the upper punching die 43, a guide assembly 45 is provided between the lower punching die 44 and the upper punching die 43, and a second upper clamping device 46 and a second side clamping device 47 cooperating with the lower punching die 44 are also provided on the gantry 41.

[0035] In this embodiment, there is more than one guide rail subassembly between the gantry 41 and the base 1, and the front and rear displacement can be adjusted through the guide rail subassembly through the punching mechanism 4.

[0036] The second upper clamping device 46 comprises a second upper clamping cylinder 461 connected to the front of the upper punching die 43, the downward piston shaft of the second upper clamping cylinder 461 is connected to a middle pressure material locking plate 462 that moves up and down relative to the lower punching die 44, and the middle pressure material locking plate 462 is connected to two middle pressure material locking blocks 463;

[0037] The second side clamping device 47 includes two second side clamping cylinders 471, one on the left and one on the right, which are arranged on both sides of the lower punching mold 44. The piston shafts of the two second side clamping cylinders 471 that move towards each other are connected to a profile positioning clamp 472. Positioning grooves 4401 that cooperate with the profile positioning clamp 472 are opened on both sides of the lower punching mold 44.

[0038] The upper punching die 43 comprises an upper die base 431 and a lifting floating seat 432, a punching needle 433 and a floating seat guide column 434 are connected to the upper die base 431, the lifting floating seat 432 is slidably connected to the upper die base 431 through the floating seat guide column 434, and the floating seat guide column 434 is sleeved with a compression spring 435 that abuts between the upper die base 431 and the lifting floating seat 432, and the lifting floating seat 432 is provided with an avoidance hole 436 corresponding to the punching needle 433; the lower punching die 44 comprises a lower die base 441 and a lower die bottom plate 442 fixed on the lower die base 441, and the lower die bottom plate 442 is provided with a die hole 443 corresponding to the punching needle 433;

[0039] The guide assembly 45 includes a main vertical guide column 451 fixedly connected to both ends of the lower mold base 441 and a central vertical guide column 452 fixed in the middle of the lower mold base 441, the upper mold base 431 is provided with a first linear guide hole 437 that cooperates with the main vertical guide column 451, and the lifting floating seat 432 is provided with a second linear guide hole 438 that cooperates with the central vertical guide column 452.

[0040] A first connecting piece is provided on the piston shaft of the stamping cylinder 42, and a second connecting piece connected to the first connecting piece is provided on the top of the upper punching die 43. The upper punching die 43 is detachably connected to the piston shaft of the stamping cylinder 42 through the cooperation of the second connecting piece and the first connecting piece.

[0041] The first connecting member is an articulated ear 81, and the second connecting member is an articulated seat 82. The upper mold base 431 is detachable by passing a pin through the articulated seat 82 and the articulated ear 81.

[0042] The cutting mechanism 5 comprises a saw blade device 51 for sawing the profile and a workpiece clamping device 52 for fixing the profile during sawing;

[0043] The saw blade device 51 includes a motor slide 511 and a cutting drive device 512 for controlling the motor slide 511 to move transversely relative to the conveying channel 2. The motor slide 511 is provided with a saw blade motor 513, and the output shaft of the saw blade motor 513 is fixedly connected with a saw blade 514.

[0044] The workpiece clamping device 52 includes a support frame 53 connected to the machine base 1 , and the support frame 53 is provided with a third upper clamping device 54 placed above the two conveying channels 2 and a third side clamping device 55 placed on the left and right sides of the conveying channels 2 .

[0045] The third upper clamping device 54 includes two third upper clamping cylinders 541 fixed on the support frame 53, and the downward piston shafts of the two third upper clamping cylinders 541 are connected to the rear material pressing lock plate 542, and each rear material pressing lock plate 542 is connected to two upper material pressing blocks 543 corresponding to the conveying channel 2, and a saw blade avoidance groove 544 is formed between the two upper material pressing blocks 543;

[0046] The third side clamping device 55 includes two groups of cylinder groups arranged on the left and right sides of the support frame 53, each group of cylinder groups includes two third side clamping cylinders 551 arranged at intervals before and after the saw blade moving path, and a side clamping block 552 is connected to the piston shaft of each third side clamping cylinder 551.

[0047] The traction mechanism 3 also includes a material pressing bracket 61 arranged at the front end of the two conveying channels 2 and a front material pressing cylinder 62 fixed on the material pressing bracket 61, and a front material pressing locking plate 63 is connected to the downward piston shaft of the front material pressing cylinder 62, and the front material pressing locking plate 63 is respectively connected to front material pressing blocks 64 corresponding to the two conveying channels 2.

[0048] The traction drive device and the cutting drive device have the same structure, and the difference is that the movement direction is different. Taking the cutting drive device as an example, both include a driving motor 71, a coupling 72, a screw shaft 73 and a screw nut 74. The output end of the driving motor 71 is connected to one end of the coupling 72, and the screw shaft 73 is connected to the other end of the coupling 72. The screw nut 74 is sleeved on the screw shaft 73 and connected to the motor slide 511.

[0049] The traction drive device and the cutting drive device also include a slide rail assembly, and the slide rail assembly includes a fixed slide rail 75 and a movable slide rail 76. The fixed slide rail 75 is fixedly connected to the machine base 1, and the movable slide rail 76 is fixedly connected to the motor slide 511. When moving, the saw blade device 51 slides horizontally along the slide rail assembly under the drive of the drive motor 71.

[0050] Combined with the above structure, its working principle is:

[0051] The profile is placed on the conveying channel 2, the first upper clamping device 33 or the first side clamping device 34 clamps the profile, the traction drive device 32 works to control the first upper clamping device 33 or the first side clamping device 34 to clamp the profile and slide backward to convey it toward the punching mechanism 4, after the traction mechanism is pulled to the moving end, the front pressing cylinder 62 works to make the front pressing block 64 press the profile, after the first upper clamping device 33 or the first side clamping device 34 releases the profile, the profile can be fixed, and then the traction drive device 32 works to control the first upper clamping device 33 or the first side clamping device 34 to slide forward to reset and clamp the profile again, and repeat the above steps so that the profile can be fed into the punching mechanism 4.

[0052] Before punching, the second upper clamping cylinder 461 or the second side clamping cylinder 471 works to drive the middle pressure material locking block 463 or the profile positioning clamp 472 to fix the position of the profile, and then the stamping cylinder 42 works to control the upper punching die 43 to move downward, and the lifting floating seat 432 in the upper punching die 43 first presses against the profile to play a pre-fixing role, and then the punching needle 433 continues to move downward under the drive of the upper die base 431 to punch the profile. After punching, the middle pressure material locking block 463 or the profile positioning clamp 472 releases the profile so that the profile can continue to be conveyed.

[0053] After being transferred to a certain length, the third upper clamping cylinder 541 or the third side clamping cylinder 551 works, driving the upper pressure block 543 or the side clamping block 552 to press against the front and rear positions of the sawing mouth of the profile, and then the saw blade motor 513 works, driving the saw blade 514 to rotate in height, and at the same time the cutting drive device 512 controls the cross-cutting movement of the motor slide 511, thereby cutting the profile to form a product, and repeating this cycle. When the upper pressure block 543 or the side clamping block 552 presses against the profile, the front pressure block 64, the middle pressure locking block 463 or the profile positioning clamp 472 presses the profile at the same time, so that the front, middle and rear of the profile are all pressed and fixed when sawing, which can better stabilize the position of the profile.

[0054] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic punching machine, comprising a base (1), characterized in that The machine base (1) is provided with two mutually parallel conveying channels (2) for placing profiles, and the machine base (1) is provided with a traction mechanism (3) for transferring the profiles, a punching mechanism (4) for punching the profiles, and a cutting mechanism (5) for cutting the punched profiles into sections in sequence along the feeding direction of the conveying channels (2); the traction mechanism (3) includes a traction seat (31) and a traction drive device (32) for controlling the traction seat (31) to slide back and forth along the feeding direction, and the traction seat (31) is provided with a first upper clamping device (33) disposed above the two conveying channels (2) and a first side clamping device (34) disposed on the left and right sides of the conveying channels (2).

2. The automatic punching machine according to claim 1, characterized in that The first upper clamping device (33) comprises a supporting vertical plate (331) disposed between two conveying channels (2), the two sides of the supporting vertical plate (331) are respectively connected to the first upper clamping cylinder (332), the downward piston shaft of the first upper clamping cylinder (332) is connected to the upper clamping plate (333), the traction seat (31) is connected to a lower clamping plate (334) corresponding to the upper clamping plate (333), and the conveying channel (2) is provided with a linear avoidance groove (201) for the lower clamping plate (334) to slide.

3. An automatic punching machine according to claim 2, characterized in that The first side clamping device (34) comprises two first side clamping cylinders (341) connected to the traction seat (31) on the left and the right, and the piston shafts of the two first side clamping cylinders (341) moving in opposite directions are connected to an outer clamping plate (342). The outer clamping plate (342) moves between the upper clamping plate (333) and the lower clamping plate (334) and cooperates with the supporting vertical plate (331) to clamp the profile.

4. The automatic punching machine according to claim 1, characterized in that The punching mechanism (4) comprises a gantry (41) and a punching cylinder (42) fixed on the gantry (41); an upper punching die (43) is connected to the piston shaft of the punching cylinder (42); a lower punching die (44) is fixedly provided below the upper punching die (43); a guide assembly (45) is provided between the lower punching die (44) and the upper punching die (43); and a second upper clamping device (46) and a second side clamping device (47) cooperating with the lower punching die (44) are also provided on the gantry (41).

5. The automatic punching machine according to claim 4, characterized in that The second upper clamping device (46) comprises a second upper clamping cylinder (461) connected in front of the upper punching die (43); the downward piston shaft of the second upper clamping cylinder (461) is connected to a middle pressure material locking plate (462) that moves up and down relative to the lower punching die (44); the middle pressure material locking plate (462) is connected to two middle pressure material locking blocks (463); The second side clamping device (47) comprises two second side clamping cylinders (471) arranged on the left and right sides of the lower punching die (44), the piston shafts of the two second side clamping cylinders (471) moving in opposite directions are connected to a profile positioning clamp block (472), and positioning grooves (4401) cooperating with the profile positioning clamp block (472) are formed on both sides of the lower punching die (44).

6. The automatic punching machine according to claim 4, characterized in that The upper punching die (43) comprises an upper die base (431) and a lifting floating seat (432), the upper die base (431) is connected with a punching needle (433) and a floating seat guide column (434), the lifting floating seat (432) is slidably connected to the upper die base (431) via the floating seat guide column (434), and the floating seat guide column (434) is sleeved with a compression spring (435) that abuts between the upper die base (431) and the lifting floating seat (432), and the lifting floating seat (432) is provided with an avoidance hole (436) corresponding to the punching needle (433); the lower punching die (44) comprises a lower die base (441) and a lower die bottom plate (442) fixed on the lower die base (441), and the lower die bottom plate (442) is provided with a die hole (443) corresponding to the punching needle (433); The guide assembly (45) includes a main vertical guide column (451) fixedly connected to both ends of the lower mold base (441) and a central vertical guide column (452) fixed in the middle of the lower mold base (441); the upper mold base (431) is provided with a first linear guide hole (437) that cooperates with the main vertical guide column (451); and the lifting floating seat (432) is provided with a second linear guide hole (438) that cooperates with the central vertical guide column (452).

7. The automatic punching machine according to claim 4, characterized in that A first connecting piece is arranged on the piston shaft of the punching cylinder (42), and a second connecting piece connected to the first connecting piece is arranged on the top of the upper punching die (43). The upper punching die (43) is detachably connected to the piston shaft of the punching cylinder (42) through the cooperation of the second connecting piece and the first connecting piece.

8. The automatic punching machine according to claim 1, characterized in that The cutting mechanism (5) comprises a saw blade device (51) for sawing the profile and a workpiece clamping device (52) for fixing the profile during sawing; The saw blade device (51) comprises a motor slide (511) and a cutting drive device (512) for controlling the motor slide (511) to move transversely relative to the conveying channel (2); a saw blade motor (513) is provided on the motor slide (511); and a saw blade (514) is fixedly connected to an output shaft of the saw blade motor (513); The workpiece clamping device (52) comprises a support frame (53) connected to the machine base (1), and the support frame (53) is provided with a third upper clamping device (54) arranged above the two conveying channels (2) and a third side clamping device (55) arranged on the left and right sides of the conveying channels (2).

9. The automatic punching machine according to claim 8, characterized in that : The third upper clamping device (54) comprises two third upper clamping cylinders (541) fixed on the support frame (53), the downward piston shafts of the two third upper clamping cylinders (541) are connected to rear material pressing lock plates (542), and two upper material pressing blocks (543) are connected to the corresponding conveying channel (2) on each rear material pressing lock plate (542), and a saw blade avoidance groove (544) is formed between the two upper material pressing blocks (543); The third side clamping device (55) comprises two groups of cylinder groups arranged on the left and right sides of the support frame (53), each group of cylinder groups comprising two third side clamping cylinders (551) arranged at intervals before and after the saw blade moving path, and a side clamping block (552) is connected to the piston shaft of each third side clamping cylinder (551).

10. The automatic punching machine according to claim 1, characterized in that The traction mechanism (3) further comprises a material pressing support (61) arranged at the front ends of the two material conveying channels (2) and a front material pressing cylinder (62) fixed on the material pressing support (61), a front material pressing locking plate (63) being connected to the downward piston shaft of the front material pressing cylinder (62), and front material pressing blocks (64) being connected to the front material pressing locking plate (63) corresponding to the two material conveying channels (2), respectively.

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