Integrated punching device with multiple punching faces and punching equipment suitable for automobile auxiliary frame

Abstract

The invention discloses an integrated punching device with multiple punching faces and punching equipment suitable for an automobile auxiliary frame. The integrated punching device with the multiple punching faces comprises a first base, a second base, a first driving mechanism used for driving the first base to move, a second driving mechanism used for driving the second base to move and a plurality of punching mechanisms arranged on the outer surface of the first base or the outer surface of the second base. The punching mechanism comprises a female die mechanism, a first male die mechanism and / or a second male die mechanism and a first demolding mechanism. The first base and the second base are used for driving the first male die mechanism and the second male die mechanism to move correspondingly. The first demolding mechanism comprises a rotating rod, a rotating shaft and a demolding driver used for driving the rotating rod to rotate around the rotating shaft. The rotating rod and the rotating shaft are arranged on the first male die mechanism and / or the second male die mechanism, and the demolding driver is arranged on the female die mechanism.

Description

Technical Field

[0001] This invention belongs to the field of automated punching technology, specifically relating to a linear integrated punching device with multiple punching surfaces and multiple punching stations suitable for automotive subframes, as well as punching equipment including the integrated punching device. Background Technology

[0002] Existing automotive subframe punching equipment includes rotary punching and linear punching. Rotary punching uses a cylinder to drive a rotating rod, on which a punching die is mounted to achieve the punching action, as shown in patents CN118788870A (a robotic arm for transporting clamps in automotive frame punching) and CN108015160A (a punching mechanism for automotive subframes). However, rotary punching operates by flipping the rod, which means the applied force angle is not entirely along the predetermined hole axis, leading to punching quality issues.

[0003] Therefore, existing punching equipment for automotive subframes is basically linear, such as patent CN109365628A, a punching mechanism for a subframe; patent CN109290432A, an online punching device for an arc welding line of a vehicle frame; patent CN210115371U, a punching device for automotive workpieces; patent CN220239779U, a punching device, punching equipment, and front subframe processing system; and patent CN215544121U, a floating punching mechanism, etc., all of which are linear punching equipment.

[0004] However, on the one hand, whether rotary or linear punching, existing punching equipment generally has only one punching working surface. Two corresponding punches are set on either side of a die, and punching is achieved through the movement of the die or punch. The existing punching equipment structure cannot accommodate more punching working surfaces. On the other hand, existing punching equipment generally places the demolding structure on the punch, increasing the size and space occupied by the punch, further reducing the possibility of setting up multiple punching working surfaces. At the same time, the fixed stroke of existing punching equipment makes it unsuitable for complex and variable vehicle frame structures, requiring a complete redesign of the punching equipment, increasing costs and reducing efficiency.

[0005] The above background information is provided only to aid in understanding the inventive concept and technical solution of this invention. It does not necessarily belong to the prior art of this invention. In the absence of clear evidence that the above information was disclosed before the filing date of this invention, the above background information should not be used to evaluate the novelty and inventiveness of this invention. Summary of the Invention

[0006] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an integrated punching device with multiple punching surfaces, which is a linear punching device with multiple punching surfaces and multiple punching stations, and is integrated into one unit, making more reasonable use of space and having a wider range of applications.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An integrated punching device with multiple punching surfaces includes a first base, a second base, a first driving mechanism for moving the first base, a second driving mechanism for moving the second base, and multiple punching mechanisms disposed on the outer surface of the first or second base. Each punching mechanism includes a die cavity, a first punch and / or a second punch, and a first demolding mechanism. The first and second punches are located on opposite sides of the die cavity, and the first and second bases respectively drive the first and second punches to move. The first demolding mechanism includes a rotating rod, a rotating shaft, and a demolding actuator for driving the rotating rod to rotate around the rotating shaft. The rotating rod and rotating shaft are disposed on the first and / or second punches, and the demolding actuator is disposed on the die cavity. The first demolding mechanism is a split structure, allowing the demolding actuator to be disposed within the die cavity, avoiding excessive size and interference caused by placing the demolding mechanism on the punch head.

[0008] The first driving mechanism and the second driving mechanism are used to drive the first base and the second base to perform linear motion, respectively. The first base and the second base move closer to each other to perform punching or move further apart. Preferably, at least three sets of punching mechanisms are provided on the outer periphery of the first base and the second base. If the first base and the second base are cuboid, three sets of punching mechanisms can be provided on three of their faces. If the first base and the second base are circular, three or more sets of punching mechanisms can be provided.

[0009] According to some preferred embodiments of the present invention, the first punch mechanism and / or the second punch mechanism includes a first fixing block and a punch head disposed on the first fixing block. The first fixing block of the first punch mechanism is disposed on the first base, and the first fixing block of the second punch mechanism is disposed on the second base. A plurality of first fixing blocks are disposed circumferentially on the first base and the second base. During punching, taking the first driving mechanism as an example, the first driving mechanism drives the first base and its first fixing blocks and punch head to move synchronously.

[0010] According to some preferred embodiments of the present invention, the rotating shaft is disposed on the first fixed block and located between the two ends of the rotating rod. One end of the rotating rod corresponds to the punch head, and the other end corresponds to the demolding actuator. The rotating rod and the rotating shaft are disposed on the side of the punch head near the demolding actuator, which is fixed inside the die mechanism; that is, the entire first demolding mechanism is disposed inside the punching mechanism. During demolding, utilizing the lever principle, the demolding actuator acts on one end of the rotating rod. Under the rotational fixing action of the rotating shaft, the other end of the rotating rod corresponding to the punch head moves in the opposite direction, pushing the workpiece on the punch head outward for demolding.

[0011] According to some preferred embodiments of the present invention, the demolding actuator includes a nitrogen spring, the piston rod of which is disposed at the end of the rotating rod away from the punch head. The demolding actuator using a nitrogen spring can be embedded within the die mechanism, not affecting the proximity of the die mechanism and punch mechanism during punching, and can also act promptly to achieve demolding when the die mechanism and punch mechanism move away from each other.

[0012] According to some preferred embodiments of the invention, a first guide mechanism is disposed between the first base and the second base, the first guide mechanism being located inside the first base and the second base, the first guide mechanism comprising a guide seat disposed on one of the first base or the second base and a guide cylinder disposed on the remaining one of the first base or the second base, the guide seat being partially accommodated within the guide cylinder.

[0013] According to some preferred embodiments of the present invention, a second guiding mechanism is provided outside the first base and the second base. The second guiding mechanism includes a fixedly disposed guide strip and a guide groove formed on the first base and the second base. The guide strip is accommodated within the guide groove, and multiple guide grooves are formed on the outer surfaces of the first base and the second base. Since multiple punching mechanisms are provided, it is necessary to ensure the linear movement of the first base and the second base, as well as the centering and stability during punching. Therefore, the present invention provides a first guiding mechanism corresponding to the interior and a second guiding mechanism corresponding to the exterior. The first guiding mechanism includes a circularly disposed guide seat and a guide cylinder, providing guidance from the interior of the first base and the second base; simultaneously, the second guiding mechanism includes multiple rectangularly disposed guide strips and guide grooves, providing guidance from the exterior of the second base and the second base.

[0014] According to some preferred embodiments of the present invention, the first base and / or the second base has a rectangular cross-section, and the punching mechanism is provided on two or three circumferential surfaces of the first base and the second base; the guide groove is formed at the corners of the first base and / or the second base. Preferably, the punching mechanism is provided on all three circumferential surfaces of the first base and the second base, and guide strips are provided at all four corners of the first base and the second base.

[0015] According to some preferred embodiments of the present invention, a mounting plate and a connecting plate located at the end of the mounting plate are included. A first driving mechanism and a second driving mechanism are fixed to the connecting plate. A die mechanism and a second guiding mechanism are fixed to the mounting plate and located on opposite sides of the mounting plate. A moving groove is provided on the mounting plate for the first fixing block to pass through and move. The die mechanism includes a second fixing block and a die head. The second fixing block is fixed to the outer surface of the mounting plate. The moving groove is located on both sides of the second fixing block. A guide strip is fixed to the inner surface of the mounting plate. The moving groove and the guide strip extend in the same direction.

[0016] According to some preferred embodiments of the present invention, the first drive mechanism and / or the second drive mechanism includes a receiving cavity and a piston housed within the receiving cavity. The piston divides the receiving cavity into a first cavity and a second cavity. The piston has a piston rod connected to the first base or the second base. By controlling the volume of the first cavity and the second cavity, the position of the piston is controlled, thereby controlling the position of the first base or the second base and controlling the distance between the first punch mechanism or the second punch mechanism and the die mechanism. This enables the control and adjustment of the opening distance before punching. With the cooperation of the smaller first punch mechanism or the second punch mechanism, the integrated punching device of the present invention can enter the interior of the complex automotive subframe to perform punching.

[0017] According to some preferred embodiments of the present invention, the punching mechanism includes a second demolding mechanism, the second demolding mechanism including an elastic element disposed corresponding to the punch head. In some embodiments, the second demolding mechanism may be provided on a first punch mechanism or a second punch mechanism where volume is not a requirement, and preferably the elastic element of the second demolding mechanism is urethane rubber.

[0018] This invention also provides a punching device suitable for automotive subframes, comprising a mounting base and an integrated punching apparatus as described above. A floating mechanism is provided between the mounting base and the integrated punching apparatus. The floating mechanism includes a guide rail and a slider. The mounting base is fixedly connected to one of the guide rail and the slider, and the integrated punching apparatus is fixedly connected to the remaining one of the guide rail and the slider. The mounting base can be connected to a robotic arm. During punching, relative positional movement occurs between the integrated punching apparatus, the robotic arm, and the mounting base. By providing the floating mechanism, stress is avoided between the integrated punching apparatus and the mounting base, protecting the relevant components.

[0019] According to some preferred embodiments of the present invention, a reset mechanism is provided between the mounting base and the integrated punching device. The reset mechanism includes a reference block fixedly connected to the mounting base, a reset block fixedly connected to the integrated punching device, and a reset drive for pushing the reset block to move to a position corresponding to the reference block. After one punching cycle is completed, the reset drive drives the reset block to move to a position corresponding to the reference block, thereby resetting the device and enabling the next punching cycle, thus avoiding poor punching caused by positional deviation.

[0020] Due to the adoption of the above technical solutions, the advantages of the present invention compared with the prior art are as follows: The integrated punching device of the present invention sets the first demolding mechanism as a split structure including a rotating rod, a rotating shaft and a demolding driver, so as to realize the dispersion of structure and volume, the demolding effect is good, and the demolding driver is set in the die mechanism to avoid the punch volume being too large, further reducing the overall volume of the integrated punching device and the possibility of interference with the vehicle frame, and can set more punching surfaces and punching stations, which is suitable for punching more complex automotive subframe structures. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the integrated punching device in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of section I; Figure 3 This is a three-dimensional structural diagram of the integrated punching device in an embodiment of the present invention from another perspective; Figure 4 This is a schematic cross-sectional view of the integrated punching device in an embodiment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the local structure; In the attached diagram, the components are: integrated punching device-1, first base-21, second base-22, first drive mechanism-31, second drive mechanism-32, punching mechanism-4, first punch mechanism-41, second punch mechanism-42, die mechanism-43, first demolding mechanism-5, rotating rod-51, rotating shaft-52, demolding driver-53, second demolding mechanism-6, elastic element-61, first fixing block-71, punch head-72, second fixing block-73, scrap hole-731, and die head-73. 74, First guide mechanism - 8, guide seat - 81, guide cylinder - 82, Second guide mechanism - 9, guide bar - 91, mounting plate - 10, moving groove - 101, connecting plate - 11, mounting seat - 12, stop driver - 131, stop plate - 132, guide rail - 141, slider - 142, reset mechanism - 15, reference block - 151, reset block - 152, reset drive - 153, first cavity - 161, second cavity - 162, piston rod - 163, piston - 164. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] In existing technologies, punching holes at different structural locations on an automotive subframe requires corresponding punching units with varying opening distances. The number of units required corresponds to the number of opening distances, increasing punching time, efficiency, and cost. The integrated punching device of this invention combines multiple punching mechanisms into one unit, enabling the application of different opening distances. Furthermore, the redesigned demolding structure reduces the device's size and cost while improving punching efficiency.

[0025] like Figures 1 to 5 As shown, the punching equipment for automotive subframes in this embodiment includes a mounting base 12, a linear integrated punching device 1, a floating mechanism and a reset mechanism 15 disposed between the mounting base 12 and the integrated punching device 1.

[0026] Mounting base 12 can be connected to a robotic arm. During punching, the integrated punching device 1, the robotic arm, and mounting base 12 will move relative to each other. By setting a floating mechanism, stress is avoided between the integrated punching device 1 and the mounting base 12, protecting the relevant components. The floating mechanism includes a guide rail 141 and a slider 142. In this embodiment, the mounting base 12 is fixedly connected to the slider 142, and the integrated punching device 1 is fixedly connected to the guide rail 141. During punching, the integrated punching device 1 and the guide rail 141 move synchronously relative to the slider 142.

[0027] In this embodiment, reset mechanisms 15 are installed on both the upper and lower sides of the connection between the mounting base 12 and the integrated punching device 1. The reset mechanism 15 includes a reference block 151 fixedly connected to the mounting base 12, a reset block 152 fixedly connected to the integrated punching device 1, and a reset drive 153 for pushing the reset block 152 to move to the position corresponding to the reference block 151. After one punching cycle is completed, the reset drive 153 drives the reset block 152 to move to the position corresponding to the reference block 151, thus resetting the device and enabling the next punching cycle, preventing poor punching due to positional deviation.

[0028] The following details the specific structure of the integrated punching device 1 in this embodiment: The integrated punching device 1 with multiple punched surfaces in this embodiment includes a mounting plate 10, a connecting plate 11 located at the end of the mounting plate 10, a first base 21, a second base 22, a first driving mechanism 31 for driving the first base 21 to move linearly, a second driving mechanism 32 for driving the second base 22 to move linearly, multiple punching mechanisms 4 disposed on the outer surfaces of the first base 21 and the second base 22, a first guiding mechanism 8 disposed between the first base 21 and the second base 22, and a second guiding mechanism 9 disposed outside the first base 21 and the second base 22. The first driving mechanism 31 and the second driving mechanism 32 are fixed on the connecting plate 11, and the die mechanism 43 and the second guiding mechanism 9 are fixed on the mounting plate 10 and are respectively located on the upper and lower sides of the mounting plate 10. In this embodiment, the connecting plate 11 has a U-shaped structure, and the openings of the U-shaped connecting plates 11 at both ends of the mounting plate 10 are different, which facilitates observation and avoids a reduction in structural strength. The reset block 152 of the reset mechanism 15 is fixedly connected to the side of the mounting plate 10.

[0029] The first driving mechanism 31 and the second driving mechanism 32 are respectively used to drive the first base 21 and the second base 22 to perform linear motion. The first base 21 and the second base 22 move closer to each other to perform punching or move further apart. In this embodiment, the cross-section of the first base 21 and the second base 22 is rectangular. Punching mechanisms 4 are provided on three circumferential surfaces of the first base 21 and the second base 22, and the other surface is used to connect with the mounting base 12.

[0030] The first drive mechanism 31 and the second drive mechanism 32 include a receiving cavity and a piston 164 housed in the receiving cavity. The piston 164 divides the receiving cavity into a first cavity 161 and a second cavity 162. The piston 164 has a piston rod 163, the end of which is connected to the first base 21 or the second base 22. By controlling the volume of the first cavity 161 and the second cavity 162, the position of the piston 164 is controlled, thereby controlling the position of the first base 21 and the second base 22, and controlling the distance between the first punch mechanism 41 or the second punch mechanism 42 and the die mechanism 43. This enables the control and adjustment of the opening distance before punching. With the smaller first punch mechanism 41 and the second punch mechanism 42, the integrated punching device 1 of this embodiment can enter the interior of the complex automotive subframe to perform punching.

[0031] The first guiding mechanism 8 is located inside the first base 21 and the second base 22. In this embodiment, the first guiding mechanism 8 includes a guide seat 81 disposed on the first base 21 and a guide cylinder 82 disposed on the second base 22. The guide seat 81 is partially accommodated within the guide cylinder 82. The second guiding mechanism 9 includes a guide strip 91 fixed to the mounting plate 10 and guide grooves formed on the first base 21 and the second base 22. The guide strip 91 is accommodated within the guide grooves to guide the linear movement of the first base 21 and the second base 22. Multiple guide grooves are formed on the outer surfaces of the first base 21 and the second base 22. The guide grooves are formed at the four corners of the rectangular first base 21 and the second base 22. That is, in this embodiment, the three circumferential surfaces of the first base 21 and the second base 22 are all provided with a punching mechanism 4, and the four corners of the first base 21 and the second base 22 are all provided with guide strips 91.

[0032] Since multiple punching mechanisms 4 are provided, it is necessary to ensure the linear movement of the first base 21 and the second base 22, as well as the centering and stability during punching. Therefore, this embodiment provides a first guide mechanism 8 corresponding to the inside and a second guide mechanism 9 corresponding to the outside. The first guide mechanism 8 includes a circular guide seat 81 and a guide cylinder 82, which provides guidance from inside the first base 21 and the second base 22. Meanwhile, the second guide mechanism 9 includes multiple rectangular guide strips 91 and guide grooves, which provide guidance from outside the second base 22.

[0033] The punching mechanism 4 includes a die cavity mechanism 43, a first punch mechanism 41 and a second punch mechanism 42, and a first demolding mechanism 5. The first punch mechanism 41 and the second punch mechanism 42 are respectively disposed on both sides of the die cavity mechanism 43. The first base 21 and the second base 22 are respectively used to drive the first punch mechanism 41 and the second punch mechanism 42 to move linearly. The first punch mechanism 41 and the second punch mechanism 42 include a first fixing block 71 and a punch head 72 disposed on the first fixing block 71. The first fixing block 71 of the first punch mechanism 41 is disposed on the first base 21, and the first fixing block 71 of the second punch mechanism 42 is disposed on the second base 22. In this embodiment, three first fixing blocks 71 are disposed on the circumference of both the first base 21 and the second base 22. During punching, taking the first driving mechanism 31 as an example, the first driving mechanism 31 drives the first base 21 and the first fixing blocks 71 and the punch head 72 thereon to move linearly synchronously closer to the die cavity mechanism 43.

[0034] The mounting plate 10 has a moving groove 101 for the first fixing block 71 to pass through and move. The die mechanism 43 includes a second fixing block 73 and a die head 74. The second fixing block 73 is fixed on the outer surface of the mounting plate 10. The moving groove 101 is opened on both sides of the second fixing block 73 and passes through the thickness direction of the mounting plate 10. The guide strip 91 is fixed on the inner surface of the mounting plate 10. The moving groove 101 and the guide strip 91 extend in the same direction.

[0035] The first demolding mechanism 5 includes a rotating rod 51, a rotating shaft 52, and a demolding actuator 53 for driving the rotating rod 51 to rotate around the rotating shaft 52. The rotating rod 51 and the rotating shaft 52 are disposed on the first punch mechanism 41 and / or the second punch mechanism 42, and the demolding actuator 53 is disposed within the second fixing block 73 of the die mechanism 43. In this embodiment, the first demolding mechanism 5 is a split structure, which allows the demolding actuator 53 to be embedded within the die mechanism 43. This avoids the excessive size and interference caused by placing the demolding mechanism on the punch head 72, preventing it from entering complex vehicle frames and limiting the number of punching surfaces and punching stations.

[0036] The rotating shaft 52 is mounted on the first fixed block 71 and located between the two ends of the rotating rod 51. One end of the rotating rod 51 corresponds to the punch head 72, and the other end corresponds to the demolding actuator 53. The rotating rod 51 and the rotating shaft 52 are positioned on the side of the punch head 72 near the demolding actuator 53, which is fixed within the second fixed block 73 of the die mechanism 43. Thus, the entire first demolding mechanism 5 is located inside the punching mechanism 4. During demolding, utilizing the lever principle, the demolding actuator 53 acts on one end of the rotating rod 51. Under the rotational fixing action of the rotating shaft 52, the other end of the rotating rod 51 corresponding to the punch head 72 moves in the opposite direction, pushing the workpiece on the punch head 72 outward for demolding. The bottom surface of the rotating rod 51 is either in contact with or away from the circumferential surface of the punch head 72 for better demolding. The rotating rod 51 is positioned on the surface of the first fixed block 71 near the second fixed block 73.

[0037] The preferred demolding actuator 53 includes a nitrogen spring, with the piston rod of the nitrogen spring positioned at the end of the rotating rod 51 away from the punch head 72. The demolding actuator 53, using a nitrogen spring, can be embedded within the second fixing block 73, without affecting the proximity of the die mechanism 43 and the first punch mechanism 41 or the second punch mechanism 42 during punching, while also being able to actuate promptly to achieve demolding when the die mechanism 43 and the first punch mechanism 41 or the second punch mechanism 42 move away from each other.

[0038] Preferably, a second demolding mechanism 6 is provided on one or more of the first punch mechanisms 41 or the second punch mechanisms 42 in the integrated punching device 1. The second demolding mechanism 6 includes an elastic element 61 corresponding to the punch head 72. That is, in some cases, the second demolding mechanism 6 can be provided on the first punch mechanism 41 or the second punch mechanism 42 where volume is not a requirement. Preferably, the elastic element 61 of the second demolding mechanism 6 is urethane. Only one demolding mechanism needs to be provided on the first punch mechanism 41 and the second punch mechanism 42. Preferably, a first demolding mechanism 5 is used.

[0039] like Figure 5 As shown, the volume of the punch mechanism (first fixing block 71 and corresponding punch head 72) using the first demolding mechanism 5 in this embodiment on the right is significantly smaller than the volume of the punch mechanism using the second demolding mechanism 6 on the left. In this embodiment, the integrated punching device 1 sets the first demolding mechanism 5 as a split structure including a rotating rod 51, a rotating shaft 52, and a demolding driver 53, achieving structural and volume dispersion and good demolding effect. Furthermore, by placing the demolding driver 53 within the second fixing block 73 of the die mechanism 43, the volume of the punch mechanism is prevented from becoming too large, further reducing the overall volume of the integrated punching device 1 and the possibility of interference. This allows for the setting of more punching surfaces and punching stations, making it suitable for punching within more complex automotive subframe structures.

[0040] After punching, the waste material is contained within the second fixing block 73, and the top of the second fixing block 73 is provided with a waste material hole 731. Preferably, the integrated punching device 1 of this embodiment also includes a material blocking mechanism, which includes a material blocking plate 132 and a material blocking driver 131 for driving the material blocking plate 132 to move. During punching, the material blocking plate 132 covers the waste material hole 731. After one or more punching operations are completed, the integrated punching device 1 moves to a suitable position, and the material blocking driver 131 drives the material blocking plate 132 to move, exposing the waste material hole 731, and the waste material falls from the waste material hole 731 to a designated position.

[0041] The following is a brief description of the working process of the punching equipment applicable to the automotive subframe in this embodiment, taking one side of the first drive mechanism 31 as an example: Before punching, the reset drive 153 of the reset mechanism 15 is fully retracted to avoid affecting the floating of the integrated punching device 1 during punching.

[0042] By controlling the volume ratio of the first cavity 161 and the second cavity 162 in the first drive mechanism 31, the position of the piston 164 is controlled, the position of the first base 21 connected to the piston rod 163 and the position of the first fixing block 71 fixed on the first base 21 are controlled, and thus the opening distance between the first fixing block 71 and the second fixing block 73 is controlled.

[0043] The robotic arm controls the integrated punching device 1 to enter the corresponding punching position of the car subframe. During the entry process, the first drive mechanism 31 can also adjust the opening distance between the first fixing block 71 and the second fixing block 73 to match the complex structure of the car subframe and avoid rigid contact between the car subframe and the integrated punching device 1.

[0044] After entering position, the first drive mechanism 31 drives the first base 21 and the first fixed block 71 to move linearly, causing the punch head 72 and the die head 74 to approach each other and punch holes in the vehicle subframe. During the punching process, the floating mechanism operates, enabling the integrated punching device 1 to float relative to the mounting base 12 via the guide rail 141 and the slider 142. Simultaneously, the reduced distance between the first fixed block 71 and the second fixed block 73 compresses the demolding driver 53, but does not affect the punching process.

[0045] After punching is completed, the first drive mechanism 31 drives the first base 21 and the first fixed block 71 to move linearly, increasing the distance between the first fixed block 71 and the second fixed block 73. The demolding driver 53 is activated, and the piston rod of the demolding driver 53 extends outward, acting on one end of the rotating rod 51, pushing that end of the rotating rod 51 toward the first drive mechanism 31. Under the rotational fixing action of the rotating shaft 52, the other end of the rotating rod 51 corresponding to the punch head 72 moves in the opposite direction, that is, toward the second fixed block 73. Demolding is achieved while the first base 21 and the first fixed block 71 are moving.

[0046] After demolding, the reset drive 153 of the reset mechanism 15 actuates, pushing the reset block 152, which is fixedly connected to the second fixed block 73, to the same position as the reference block 151, which is fixedly connected to the mounting base 12, to ensure the accuracy of the next punching. Simultaneously, after one or more punching operations, when the integrated punching device 1 moves to the appropriate position, the stop mechanism actuates, and the stop driver 131 drives the stop plate 132 to move, causing the waste material in the second fixed block 73 to fall to the designated position, avoiding impact on the equipment and facilitating unified processing.

[0047] The integrated punching device of this invention is used for punching holes at different opening distances on the same workpiece (automotive subframe). The first drive mechanism and the second drive mechanism include multiple control positions, which can adjust the piston stroke to achieve opening clearance. This allows multiple punching mechanisms to avoid interference by using the piston's stop position, thus enabling them to enter the complex structure of the automotive subframe. Simultaneously, the integrated punching device of this invention solves the spatial demolding problem by transferring the demolding force to the second fixed block of the die mechanism, achieving demolding through leverage. This does not occupy external space, transferring force to a non-interference area and improving space utilization.

[0048] The above embodiments of the present invention are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An integrated punching device with multiple punched surfaces, characterized in that, The device includes a first base, a second base, a first driving mechanism for moving the first base, a second driving mechanism for moving the second base, and a plurality of punching mechanisms disposed on the outer surface of the first or second base. Each punching mechanism includes a die mechanism, a first punch mechanism and / or a second punch mechanism, and a first demolding mechanism. The first and second punch mechanisms are located on opposite sides of the die mechanism. The first and second bases are used to drive the first and second punch mechanisms to move, respectively. The first demolding mechanism includes a rotating rod, a rotating shaft, and a demolding actuator for driving the rotating rod to rotate around the rotating shaft. The rotating rod and rotating shaft are disposed on the first and / or second punch mechanisms, and the demolding actuator is disposed on the die mechanism.

2. The integrated punching device according to claim 1, characterized in that, The first punch mechanism and / or the second punch mechanism include a first fixing block and a punch head disposed on the first fixing block. The first fixing block of the first punch mechanism is disposed on the first base, and the first fixing block of the second punch mechanism is disposed on the second base.

3. The integrated punching device according to claim 2, characterized in that, The rotating shaft is mounted on the first fixed block and located between the two ends of the rotating rod. One end of the rotating rod corresponds to the punch head, and the other end of the rotating rod corresponds to the demolding driver.

4. The integrated punching device according to claim 2, characterized in that, The demolding actuator includes a nitrogen spring, and the piston rod of the nitrogen spring is positioned at the end of the rotating rod away from the punch head.

5. The integrated punching device according to claim 1, characterized in that, The first guide mechanism is disposed between the first base and the second base. The first guide mechanism is located inside the first base and the second base. The first guide mechanism includes a guide seat disposed on one of the first base or the second base and a guide cylinder disposed on the other of the first base or the second base. The guide seat is partially housed in the guide cylinder.

6. The integrated punching device according to claim 1, characterized in that, The system includes a second guide mechanism disposed outside the first base and the second base. The second guide mechanism includes a guide bar that is fixedly disposed and a guide groove formed on the first base and the second base. The guide bar is accommodated in the guide groove. Multiple guide grooves are formed on the outer surfaces of the first base and the second base.

7. The integrated punching device according to claim 6, characterized in that, The first base and / or the second base have rectangular cross-sections, and the punching mechanism is provided on two or three circumferential surfaces of the first base and the second base; the guide groove is opened at the corner of the first base and / or the second base.

8. The integrated punching device according to claim 2, characterized in that, The device includes a mounting plate and a connecting plate located at the end of the mounting plate. The first driving mechanism and the second driving mechanism are fixed on the connecting plate. The die mechanism and the second guiding mechanism are fixed on the mounting plate and are located on both sides of the mounting plate, respectively. The mounting plate has a moving groove for the first fixing block to pass through and move.

9. The integrated punching device according to claim 1, characterized in that, The first driving mechanism and / or the second driving mechanism includes a receiving cavity and a piston housed in the receiving cavity. The piston divides the receiving cavity into a first cavity and a second cavity. The piston has a piston rod connected to the first base or the second base. The position of the piston is controlled by controlling the volume of the first cavity and the second cavity, thereby controlling the position of the first base or the second base.

10. The integrated punching device according to claim 2, characterized in that, The punching mechanism includes a second demolding mechanism, which includes an elastic element corresponding to the punch head.

11. A punching device suitable for automobile subframes, characterized in that, The device includes a mounting base and an integrated punching device as described in any one of claims 1-10, wherein a floating mechanism is provided between the mounting base and the integrated punching device, the floating mechanism including a guide rail and a slider, the mounting base being fixedly connected to one of the guide rail and the slider, and the integrated punching device being fixedly connected to the remaining one of the guide rail and the slider.

12. The punching equipment according to claim 11, characterized in that, A reset mechanism is provided between the mounting base and the integrated punching device. The reset mechanism includes a reference block fixedly connected to the mounting base, a reset block fixedly connected to the integrated punching device, and a reset drive component for pushing the reset block to move to the position corresponding to the reference block.

Images