A flexible punching device

Abstract

The present invention provides a flexible punching device, which belongs to the field related to punching devices. A flexible punching device includes a mounting seat, a top end of the mounting seat is fixedly connected to a connecting seat connected to an external robot, the other end of the mounting seat is provided with a through slot for discharging materials, both sides of the mounting seat are fixedly connected with a first fixed seat, two symmetrical stamping arms are arranged inside the mounting seat, grooves are arranged on the two stamping arms, two symmetrical rotating rods are fixedly connected to the mounting seat, rotating slots corresponding to the rotating rods are arranged on the two stamping arms, and the rotating rods are located in the rotating slots and rotate; the present invention, through the setting of the pressing arm, can extrude the workpiece, ensure the stability of the workpiece, improve the accuracy of punching, and compared with the traditional punching mode, can perform multiple punching operations at the same time, thereby improving practicality and work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field related to punching devices, and in particular relates to a flexible punching device. Background Art

[0002] With the development of the automotive field, the punching device of the frame is more and more widely used. The function of the frame is to support and connect the various assemblies of the car, so that the assemblies maintain a relatively correct position and bear various loads inside and outside the car. The frame needs to be punched during the production process, so a punching device is needed to complete the punching work of the frame.

[0003] Existing punching devices are of a single type, mostly punching in a straight line direction, with high requirements on the position of the punched holes, low practicality, and inability to perform multiple punching operations on the same frame, which reduces work efficiency. In addition, due to some pressure acting on the punched frame during punching, shaking occurs, affecting the punching accuracy. Summary of the invention

[0004] The embodiment of the present invention provides a flexible punching device, aiming to solve the problems raised in the background technology.

[0005] The embodiment of the present invention is implemented as follows: a flexible punching device includes a mounting seat, the top end of the mounting seat is fixedly connected to a connecting seat connected to an external robot, the other end of the mounting seat is provided with a through slot for discharging materials, both sides of the mounting seat are fixedly connected to a first fixing seat, two mutually symmetrical stamping arms are arranged inside the mounting seat, the two stamping arms are provided with grooves, two mutually symmetrical rotating rods are fixedly connected to the mounting seat, the two stamping arms are provided with rotating slots corresponding to the rotating rods, and the rotating rods are located in the rotating slots and rotate inside the rotating slots, the two first fixing seats are provided with a first connecting block that moves axially along the inner cavity of the first fixing seat, and one end of the first connecting block is rotatably connected to one end of the stamping arm through a first convex rod, and the other ends of the two first connecting blocks are rotatably connected to the first end of the stamping arm through a first convex rod, and the other ends of the two first connecting blocks A first connecting rod is fixedly connected to both sides of the end, and the first connecting rod passes through the first fixed seat horizontally. A sliding groove that slides with the first connecting rod is provided on both sides of the two first fixed seats. The ends of the two first fixed seats away from the mounting seat are fixedly connected to the first high hydraulic cylinder. Two first swing arms that are symmetrical to each other are arranged on both sides of the two first high hydraulic cylinders, and one end of the first swing arm is rotatably connected to the first connecting rod. A first connecting rod is installed between the two first swing arms that are symmetrical to each other. The middle parts of the two ends of the two first connecting rods are fixedly connected to the first protrusions. The four first swing arms are provided with a first rotating groove that rotates with the first protrusion. The first connecting rod is fixedly connected to the output end of the first high hydraulic cylinder by a first fastening screw, and the other ends of the two stamping arms are detachably connected to a punch.

[0006] Preferably, a slot is provided on one side of the stamping arm away from the first connecting block and close to the mounting seat, and a punch detachably connected by a fixing screw is provided inside the slot. The setting of the fixing screw facilitates the replacement of the punch, thereby improving work efficiency.

[0007] Preferably, the bottom ends of the two first fixing seats are fixedly connected with a second limit plate, and the two second limit plates are detachably connected with a second sensor for limiting the longitudinal movement of the first swing arm through screws. Through the setting of the sensor, a feedback signal can be provided to the first high hydraulic cylinder to control the movement of the first high hydraulic cylinder and at the same time play a role of limit protection.

[0008] Preferably, both sides of the mounting seat are fixedly connected with a second fixing seat located below the first fixing seat, the inner cavity of the groove is provided with two pressing arms rotating along the rotating rod, and the two pressing arms are symmetrical to each other, the inner cavities of the two second fixing seats are provided with a second connecting block moving axially along the inner cavity of the second fixing seat, one end of the two second connecting blocks is rotatably connected to one end of the pressing arm through the second protruding rod, the two second connecting blocks are fixedly connected with a second connecting rod on both sides of the end away from the second protruding rod, and the second connecting rod transversely penetrates the second fixing seat, the two second fixing seats are provided with a strip groove corresponding to the second connecting rod, the two second fixing seats are fixedly connected with a second high hydraulic cylinder at one end away from the mounting seat, and the two second high hydraulic cylinders A second swing arm is provided on both sides of the pressing cylinder, one end of the four second swing arms is rotatably connected to the second protruding rod, a second connecting rod is provided between the two second swing arms, and the middle parts of the two ends of the two second connecting rods are fixedly connected with a second protrusion, and the four second swing arms are provided with a second rotation groove corresponding to the second protrusion, and the second protrusion is located in the second rotation groove and rotates inside the output end of the two second high hydraulic cylinders are fixedly connected to the second connecting rod through a second fastening screw, and the other end of the two pressing arms is provided with a through hole corresponding to the punch, through the setting of the second high hydraulic cylinder, under the action of the second swing arm, the second connecting block and the pressing arm can be used to extrude the workpiece, thereby ensuring the stability of the workpiece and improving the punching accuracy.

[0009] Preferably, one side of each of the two second fixing seats is fixedly connected with a first limit plate, and the two first limit plates are detachably connected with a first sensor for limiting the longitudinal movement of the second swing arm through screws. Through the setting of the sensor, a feedback signal can be provided to the second high hydraulic cylinder to control the movement of the second high hydraulic cylinder and at the same time play a role of limit protection.

[0010] Preferably, the through groove is in an I-shaped structure, and the diameter of the bottom is larger than the diameter of the top, so as to facilitate the discharge of waste.

[0011] Preferably, the diameter of the through hole is 3 mm larger than the diameter of the punch. By setting the diameter of the through hole to be larger than the diameter of the punch, the use of the punch is facilitated and jamming is avoided.

[0012] Preferably, the diameter of the through groove is 4 mm larger than the diameter of the punch. By setting the diameter of the through groove larger than the diameter of the punch, the discharge of waste is facilitated and blockage is avoided.

[0013] Preferably, the punch is made of tungsten steel, and the first connecting block, the second connecting block, the second connecting rod, the first connecting rod, the first protruding rod, the second protruding rod and the rotating rod are all made of steel. By using a punch made of tungsten steel, it has high precision and can increase the service life.

[0014] The present invention provides a flexible punching device, which has the following beneficial effects:

[0015] 1. The present invention, through the provision of the second high hydraulic cylinder, under the action of the second swing arm, utilizes the second connecting block and the pressing arm to extrude the workpiece, thereby ensuring the stability of the workpiece and improving the accuracy of punching.

[0016] 2. The present invention can facilitate the replacement of the punch by setting the fixing screws, and can set two different punches at the same time. Compared with the traditional punching mode, multiple punching operations can be performed simultaneously, thereby improving practicality and work efficiency.

[0017] 3. The present invention facilitates the discharge of waste by providing a through slot with an I-shaped structure. Meanwhile, the diameter of the through slot is larger than the diameter of the punch, which facilitates the discharge of waste and avoids blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic cross-sectional view of the main structure of the present invention;

[0020] Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the connection structure between the first fixing seat and the first swing arm of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the connection between the second fixing seat and the second swing arm of the present invention.

[0023] In the figure: 1, mounting seat; 2, connecting seat; 3, first fixed seat; 4, first connecting block; 5, first connecting rod; 6, first convex rod; 7, first high hydraulic cylinder; 8, first swing arm; 9, first connecting rod; 10, first convex block; 11, first fastening screw; 12, first rotating groove; 13, punching arm; 14, groove; 15, slot; 16, punch; 17, fixing screw; 18, second fixed seat; 19, second high hydraulic cylinder; 20, second swing arm; 21, second connecting rod; 22, second convex block; 23, second rotating groove; 24, second fastening screw; 25, first limit plate; 26, first sensor; 27, second connecting rod; 28, second connecting block; 29, second convex rod; 30, pressing arm; 31, through hole; 32, rotating slot; 33, rotating rod; 34, through slot; 35, second sensor; 36, second limit plate. DETAILED DESCRIPTION

[0024] 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.

[0025] The present invention provides a flexible punching device, such as Figures 1 to 5As shown, it includes a mounting seat 1, the top of which is fixedly connected to a connecting seat 2 connected to an external robot, the other end of the mounting seat 1 is provided with a through slot 34 for discharging materials, and both sides of the mounting seat 1 are fixedly connected to a first fixing seat 3, and two symmetrical stamping arms 13 are arranged inside the mounting seat 1, and grooves 14 are arranged on the two stamping arms 13, and two symmetrical rotating rods 33 are fixedly connected to the mounting seat 1, and rotating grooves 32 corresponding to the rotating rods 33 are arranged on the two stamping arms 13, and the rotating rods 33 are located inside the rotating grooves 32 for rotation, and the first connecting blocks 4 that move axially along the inner cavity of the first fixing seats 3 are arranged inside the two first fixing seats 3, and one end of the first connecting block 4 is rotatably connected to one end of the stamping arm 13 through a first convex rod 6, and the other ends of the two first connecting blocks 4 are fixedly connected on both sides. A first connecting rod 5 is connected, and the first connecting rod 5 passes through the first fixed seat 3 horizontally. Both sides of the two first fixed seats 3 are provided with sliding grooves that slide with the first connecting rod 5. The two first fixed seats 3 are fixedly connected to the first high hydraulic cylinder 7 at one end away from the mounting seat 1. Both sides of the two first high hydraulic cylinders 7 are provided with two symmetrical first swing arms 8, and one end of the first swing arm 8 is rotatably connected to the first connecting rod 5. A first connecting rod 9 is installed between the two symmetrical first swing arms 8. The middle parts of the two ends of the two first connecting rods 9 are fixedly connected with first protrusions 10. The four first swing arms 8 are provided with first rotating grooves 12 that rotate with the first protrusions 10. The first connecting rod 9 is fixedly connected to the output end of the first high hydraulic cylinder 7 by a first fastening screw 11, and the other ends of the two stamping arms 13 are detachably connected with a punch 16.

[0026] A slot 15 is provided on one side of the punch arm 13 away from the first connecting block 4 and close to the mounting seat 1. A punch 16 detachably connected by a fixing screw 17 is provided inside the slot 15. The setting of the fixing screw 17 facilitates the replacement of the punch 16, thereby improving work efficiency.

[0027] The bottom ends of the two first fixing seats 3 are fixedly connected with a second limit plate 36, and the two second limit plates 36 are detachably connected with a second sensor 35 for limiting the longitudinal movement of the first swing arm 8 through screws. Through the setting of the second sensor 35, a feedback signal can be provided to the first high hydraulic cylinder 7 to control the movement of the first high hydraulic cylinder 7 and at the same time play a role of limit protection.

[0028] Both sides of the mounting seat 1 are fixedly connected with a second fixing seat 18 located below the first fixing seat 3, the inner cavity of the groove 14 is provided with two pressing arms 30 rotating along the rotating rod 33, and the two pressing arms 30 are symmetrical to each other, the inner cavities of the two second fixing seats 18 are provided with second connecting blocks 28 that move axially along the inner cavity of the second fixing seat 18, one end of the two second connecting blocks 28 is rotatably connected to one end of the pressing arm 30 through a second protruding rod 29, the two second connecting blocks 28 are fixedly connected with second connecting rods 27 on both sides of the ends away from the second protruding rod 29, and the second connecting rods 27 transversely penetrate the second fixing seat 18, the two second fixing seats 18 are provided with strip grooves corresponding to the second connecting rods 27, the two second fixing seats 18 are fixedly connected with a second high hydraulic cylinder 19 at one end away from the mounting seat 1, and the two second high hydraulic cylinders 19 A second swing arm 20 is provided on both sides, one end of the four second swing arms 20 is rotatably connected to the second protruding rod 29, a second connecting rod 21 is provided between the two second swing arms 20, and the middle parts of the two ends of the two second connecting rods 21 are fixedly connected with a second protrusion 22, and the four second swing arms 20 are provided with a second rotation groove 23 corresponding to the second protrusion 22, and the second protrusion 22 is located in the second rotation groove 23 and rotates inside, the output ends of the two second high hydraulic cylinders 19 are fixedly connected to the second connecting rod 21 through a second fastening screw 24, and the other ends of the two pressing arms 30 are provided with a through hole 31 corresponding to the punch 16, through the setting of the second high hydraulic cylinder 19, under the action of the second swing arm 20, the second connecting block 28 and the pressing arm 30 can be used to extrude the workpiece, thereby ensuring the stability of the workpiece and improving the accuracy of punching.

[0029] One side of each of the two second fixing seats 18 is fixedly connected with a first limit plate 25, and the two first limit plates 25 are detachably connected with a first sensor 26 for limiting the longitudinal movement of the second swing arm 20 through screws. Through the setting of the first sensor 26, a feedback signal can be provided to the second high hydraulic cylinder 19 to control the movement of the second high hydraulic cylinder 19 and at the same time play a role of limit protection.

[0030] The through slot 34 is in an I-shaped structure, and the diameter of the bottom is larger than the diameter of the top, so as to facilitate the discharge of waste.

[0031] The diameter of the through hole 31 is 3 mm larger than the diameter of the punch 16 . By setting the diameter of the through hole 31 to be larger than the diameter of the punch 16 , the use of the punch 16 is facilitated and jamming is avoided.

[0032] The diameter of the through slot 34 is 4 mm larger than the diameter of the punch 16 . By setting the diameter of the through slot 34 to be larger than the diameter of the punch 16 , it is convenient to discharge waste materials and avoid blockage.

[0033] The punch 16 is made of tungsten steel, and the first connecting block 4, the second connecting block 28, the second connecting rod 27, the first connecting rod 5, the first protruding rod 6, the second protruding rod 29 and the rotating rod 33 are all made of steel. By using the punch 16 made of tungsten steel, it has high precision and can increase the service life.

[0034] Before use, the first sensor 26 and the second sensor 35 are connected to the external controller through a wiring harness, the first high hydraulic cylinder 7 and the second high hydraulic cylinder 19 are connected to the hydraulic station through a pipeline, and then a suitable punch 16 is placed inside the slot 15, and the punch 16 is fixed by a fixing screw 17. By setting two left and right punches 16, the punching required for punching two workpieces can be installed. Compared with the traditional punching mode, multiple punching operations can be performed at the same time, which improves practicality and work efficiency. When in use, it is connected to the robot through the connecting seat 2. When it is necessary to punch the workpiece, the bottom of the mounting seat 1 is placed on one side of the workpiece through the robot, and the movement of the first high hydraulic cylinder 7 is controlled to drive the first connecting rod 9 to move, thereby causing the two first swing arms 8 to move synchronously, and then the first connecting block 4 is driven to move under the action of the first connecting rod 5, and then the stamping arm 13 is driven to rotate toward each other along the rotating rod 33 under the action of the rotating slot 32 under the action of the first convex rod 6, and at the same time, the movement of the second high hydraulic cylinder 19 is synchronously controlled to drive the second connecting rod 21 to move, thereby causing the two second swing arms 8 to move synchronously. The arm 20 moves synchronously, and then drives the second connecting block 28 to move under the action of the second connecting rod 27, and then drives the pressing arm 30 to rotate toward each other along the rotating rod 33 under the action of the rotating slot 32 under the action of the second protruding rod 29, thereby squeezing the workpiece, so that the workpiece fits tightly between the pressing arm 30 and the mounting seat 1. Through the setting of the pressing arm 30, the workpiece can be squeezed, the stability and punching accuracy of the workpiece punching are improved, and at the same time, the punch 16 is used to pass through the through hole 31 on the pressing arm 30 to punch the workpiece, and the punching shear is cut. The incoming waste enters the interior of the through slot 34 driven by the collision, and then falls freely along the through slot 34. When it is necessary to perform multiple punching operations on the workpiece at the same time, it is only necessary to use the fixing screws 17 to respectively install different punches 16 on the left and right punching arms 13 before use. When it is necessary to perform another punching operation on the workpiece, it is only necessary to use the robot to place the workpiece between the punching arm 13 and the mounting seat 1 on the opposite side. By performing the above steps, punching can be achieved. It is possible to perform multiple punching operations on the workpiece at the same time, thereby improving practicality and work efficiency.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible punching device, comprising a mounting seat (1), characterized in that: The top of the mounting seat (1) is fixedly connected to a connecting seat (2) connected to an external robot, the other end of the mounting seat (1) is provided with a through slot (34) for discharging materials, both sides of the mounting seat (1) are fixedly connected to a first fixed seat (3), the interior of the mounting seat (1) is provided with two mutually symmetrical punching arms (13), both of which are provided with a groove (14), the mounting seat (1) is fixedly connected to two mutually symmetrical rotating rods (33), both of which are provided with a rotating slot (32) corresponding to the rotating rod (33), and the rotating rod (33) is located inside the rotating slot (32) for rotation, and the interiors of the two first fixed seats (3) are provided with A first connecting block (4) is arranged to move axially along the inner cavity of the first fixed seat (3), and one end of the first connecting block (4) is rotatably connected to one end of the punching arm (13) through a first protruding rod (6). The other ends of the two first connecting blocks (4) are fixedly connected to first connecting rods (5) on both sides, and the first connecting rods (5) penetrate the first fixed seat (3) transversely. Both sides of the two first fixed seats (3) are provided with sliding grooves that slide with the first connecting rods (5). The ends of the two first fixed seats (3) away from the mounting seat (1) are fixedly connected to first high hydraulic cylinders (7). Both sides of the two first high hydraulic cylinders (7) are provided with two mutually symmetrical first swing arms (8), and one end of the first swing arm (8) is provided with a first swing arm (8). The first connecting rod (9) is rotatably connected to the first connecting rod (5) at one end, a first connecting rod (9) is installed between the two first swing arms (8) which are symmetrical to each other, the middle parts of the two ends of the two first connecting rods (9) are fixedly connected to the first protrusions (10), the four first swing arms (8) are provided with first rotation grooves (12) which rotate with the first protrusions (10), the first connecting rod (9) is fixedly connected to the output end of the first high hydraulic cylinder (7) through a first fastening screw (11), a slot (15) is provided on the side close to the mounting seat (1) at one end of the punching arm (13) away from the first connecting block (4), a punch (16) which is detachably connected by a fixing screw (17) is arranged inside the slot (15), and the mounting seat (1 ) are fixedly connected to a second fixed seat (18) located below the first fixed seat (3) on both sides, the inner cavity of the groove (14) is provided with two pressing arms (30) rotating along the rotating rod (33), and the two pressing arms (30) are symmetrical to each other, the inner cavities of the two second fixed seats (18) are provided with second connecting blocks (28) moving axially along the inner cavity of the second fixed seat (18), one end of the two second connecting blocks (28) is rotatably connected to one end of the pressing arm (30) through a second protruding rod (29), and the two ends of the two second connecting blocks (28) away from the second protruding rod (29) are fixedly connected to second connecting rods (27) on both sides, and the second connecting rods (27) pass through the second fixed seat (18) laterally,The two second fixing seats (18) are each provided with a strip groove corresponding to the second connecting rod (27); one end of the two second fixing seats (18) away from the mounting seat (1) is fixedly connected to a second high hydraulic cylinder (19); second swing arms (20) are provided on both sides of the two second high hydraulic cylinders (19); one end of the four second swing arms (20) is rotatably connected to the second protruding rod (29); a second connecting rod (21) is provided between the two second swing arms (20); and the two second connecting rods The middle parts of both ends of the two second swing arms (21) are fixedly connected with second protrusions (22), the four second swing arms (20) are provided with second rotation grooves (23) corresponding to the second protrusions (22), and the second protrusions (22) are located inside the second rotation grooves (23) for rotation, the output ends of the two second high hydraulic cylinders (19) are fixedly connected with the second connecting rod (21) through second fastening screws (24), and the other ends of the two pressing arms (30) are provided with through holes (31) corresponding to the punch (16).

2. A flexible punching device as claimed in claim 1, characterized in that: The bottom ends of the two first fixing seats (3) are fixedly connected to a second limit plate (36), and the two second limit plates (36) are detachably connected to a second sensor (35) for limiting the longitudinal movement of the first swing arm (8) via screws.

3. A flexible punching device as claimed in claim 1, characterized in that: One side of each of the two second fixing seats (18) is fixedly connected to a first limit plate (25), and each of the two first limit plates (25) is detachably connected to a first sensor (26) for limiting the longitudinal movement of the second swing arm (20) via screws.

4. A flexible punching device as claimed in claim 1, characterized in that: The through groove (34) is in an I-shaped structure, and the diameter of the bottom is larger than the diameter of the top.

5. A flexible punching device as claimed in claim 1, characterized in that: The diameter of the through hole (31) is 3 mm larger than the diameter of the punch (16).

6. A flexible punching device as claimed in claim 1, characterized in that: The diameter of the through groove (34) is 4 mm larger than the diameter of the punch (16).

7. A flexible punching device as claimed in claim 1, characterized in that: The punch (16) is made of tungsten steel, and the first connecting block (4), the second connecting block (28), the second connecting rod (27), the first connecting rod (5), the first protruding rod (6), the second protruding rod (29) and the rotating rod (33) are all made of steel.

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