Automobile flexible door body punching hydraulic device

Abstract

The present invention relates to the technical field of automobile door body punching devices, and provides an automobile flexible door body line punching hydraulic device, wherein a flexible support frame is provided on the frame, and the flexible support frame is used to support the middle part of the automobile door body placed on the support roller frame; the flexible support frame includes a mounting seat, and a plurality of swing arms are hingedly provided on the top surface of the mounting seat, and the swing arms can swing horizontally to the outside of the mounting seat and unfold; a mounting box is provided on the swing arm, and an elastic push rod is hingedly provided on the circumference of the outer wall of the mounting box, and the elastic push rod can swing vertically along the hinge axis, and the elastic push rod is used to press against the middle surface of the automobile door body; a driving member is provided in the mounting box, and the driving member can drive the connecting ring to move toward the axis of the mounting box, so that the connecting ring drives the elastic push rod to swing vertically toward the direction close to the automobile door body. Through the above technical solution, the technical problem in the prior art that the middle part of the automobile door body lacks effective support when punching the automobile door body, which easily causes the automobile door body to deform during processing, is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of automobile door punching devices, and in particular, to an automobile flexible door line punching hydraulic device. Background Art

[0002] The machining quality of automotive doors plays a key role in the safety, sealing, and aesthetics of the entire vehicle. As a crucial piece of equipment in the automotive door production process, the hydraulic punching device for flexible door lines precisely processes the doors, and its performance directly impacts production efficiency and machining accuracy.

[0003] Currently, existing hydraulic punching systems for automobile door bodies typically use two support rollers to support the door body. However, this support method only supports the two sides of the door body. During the punching process, the middle of the door body lacks effective support and is prone to deformation and displacement under the punching pressure. This leads to reduced punching accuracy and even scrap, seriously affecting the processing quality and production efficiency of the door body. Furthermore, the existing support structure cannot be flexibly adjusted to different door models and shapes, resulting in poor versatility and difficulty in meeting diverse production needs.

[0004] Therefore, there is an urgent need for a hydraulic device for punching a flexible automobile door body that can effectively support the middle part of the automobile door body and improve punching accuracy and production efficiency. Summary of the Invention

[0005] In order to overcome the above defects, the present invention provides a hydraulic device for punching a flexible automobile door body, which solves the technical problem in the prior art that when punching the automobile door body, the middle part of the automobile door body lacks effective support, which easily causes the automobile door body to deform during processing.

[0006] According to one aspect, at least one embodiment of the present invention provides a hydraulic punching device for a flexible door body of an automobile, comprising a frame, two hydraulic punching machines disposed oppositely on the frame, and two support roller frames located between the two hydraulic punching machines, wherein the frame is further provided with a flexible support frame located between the two support roller frames;

[0007] The flexible support frame comprises:

[0008] A mounting base is detachably mounted on the frame, wherein the outer periphery of the mounting base is hinged with a plurality of swing arms capable of horizontal swinging and extending outward from the mounting base;

[0009] An installation box is provided on the swing arm, and at least one elastic top rod capable of vertical swinging is hingedly connected to the outer periphery of the installation box;

[0010] A driving member is arranged in the installation box, and the driving member has a connecting ring sleeved on the outer periphery of the elastic push rod. The driving member can drive the connecting ring to move toward the axis of the installation box to drive the elastic push rod to swing vertically and press against the lower middle part of the car door body.

[0011] Optionally, several active rods are hinged on the outer periphery of the mounting seat, and the active rods correspond one-to-one to the swing arm; a sliding groove is provided on the swing arm, and the extension direction of the sliding groove is the same as the extension direction of the swing arm. The end of the active rod away from the mounting seat is a sliding end, and the sliding end is slidably connected to the sliding groove, and the active rod is used to drive the swing arm to swing horizontally.

[0012] Optionally, a gear ring is rotatably provided on the mounting seat, and the gear ring is coaxially arranged with the mounting seat; the outer periphery of the hinged end of the active rod has a gear portion, and the gear portion is engaged with the gear ring, and the gear ring is used to drive several of the active rods to swing synchronously.

[0013] Optionally, a plurality of through holes are formed on the peripheral wall of the installation box, the through holes corresponding to the elastic ejector rods one by one, a connecting rod is slidably provided in the through hole, the connecting rod passes through the through hole, and one end of the connecting rod close to the elastic ejector rod is fixedly connected to the connecting ring, and the driving member includes:

[0014] A vertical shaft is provided along the axial direction of the installation box and penetrates the installation box and is slidably engaged with the installation box;

[0015] The conical block is fixedly mounted on the vertical axis and is located in the installation box. The end of the connecting rod away from the connecting ring slides and abuts against the outer wall of the conical block. The conical block can move axially with the vertical axis to pull the connecting rod back toward the axis of the installation box and make the elastic push rod swing vertically.

[0016] Optionally, a plurality of slideways are provided on the outer peripheral wall of the conical block, and the extending direction of the slideways is the same as the generatrix direction of the conical block;

[0017] A slider is fixedly provided at the end of the connecting rod, and the slider is slidably provided in the slideway.

[0018] Optionally, a hinged support is rotatably provided at the bottom of the installation box, and the rotation axis of the hinged support is arranged parallel to the main axis of the installation box, and the driving member further includes:

[0019] A pressing rod is provided along the axial direction of the mounting seat and passes through the mounting seat, and the top end of the pressing rod is used to abut against the bottom wall of the middle part of the automobile door body;

[0020] a collar, sleeved on the outer circumference of the pressing rod and located below the bottom surface of the mounting seat, wherein the collar and the pressing rod are slidably engaged along the circumferential direction;

[0021] a transmission rod hinged to the bottom of the hinged support and extending radially along the collar, one end of the transmission rod being hinged to the collar and the other end being in contact with the vertical shaft;

[0022] When the collar moves downward following the pressing rod, the transmission rod can swing vertically under the support of the articulated support and push the vertical axis to move upward; the articulated support can rotate circumferentially to cooperate with the transmission rod to swing horizontally following the swing arm.

[0023] Optionally, the transmission rod is a telescopic rod, and the transmission rod can be telescopic following the swing of the swing arm.

[0024] Optionally, the elastic push rod includes:

[0025] A rod body, the rod body having a hinge end and a limit end, the rod body being hinged to the installation box via the hinge end;

[0026] A sleeve is sleeved on the limiting end of the rod body. A spring is provided on the limiting end. The spring is located in the sleeve. The spring is used to push the sleeve so that the sleeve moves upward and away from the limiting end.

[0027] Optionally, the two punching hydraulic presses are arranged opposite to each other along the length direction of the frame, and at least one of the punching hydraulic presses is capable of sliding along the length direction of the frame.

[0028] Optionally, a screw motor is provided on the frame, and the screw motor is used to drive the punching hydraulic press to move along the length direction of the frame. A rangefinder is provided on the frame, and the rangefinder is used to measure the moving distance of the punching hydraulic press.

[0029] The beneficial effects of the embodiments of the present invention are:

[0030] In the present invention, during operation, the automobile door body is placed on two support roller frames manually or by a robot, with the middle of the door body located above the flexible support frame. When the automobile door body is in place, a robot or other external reinforcement device is required to press and limit the top surface of the automobile door body. Then, the driving member is started, and the driving member drives the connecting ring to move toward the axis of the installation box. The connecting ring drives the elastic push rod to swing vertically toward the direction close to the automobile door body, so that the elastic push rod presses against the middle surface of the automobile door body, providing support for the middle part of the door body. Because the elastic push rod can adapt to the uneven surface of the automobile door body itself, it supports the automobile door body like a human hand, so that the elastic push rod has a better support effect on the automobile door body. Subsequently, two punching hydraulic presses punch the automobile door body according to a preset program. During the processing, the flexible support frame continuously and stably supports the middle part of the door body to prevent the door body from being deformed by the punching pressure. This solution supports the middle part of the automobile door body through a flexible support frame, effectively solving the problem that the existing device only supports the two sides of the door body, causing the middle part to be easily deformed. It improves the stability of the automobile door body during the punching process, thereby improving the punching accuracy and processing quality, reducing the scrap rate, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0032] Figure 1 A schematic diagram of the overall structure of a punching hydraulic device in one embodiment of the present invention;

[0033] Figure 2 for Figure 1 A schematic structural diagram of the flexible support frame as a whole in an embodiment of the present invention;

[0034] Figure 3 for Figure 2 A schematic structural diagram of the mounting box and the elastic ejector rod in the embodiment;

[0035] Figure 4 for Figure 3 A partial enlarged view of point C in the middle;

[0036] Figure 5 for Figure 2 A partial enlarged view of point A in the middle;

[0037] Figure 6 for Figure 3 A front view of the installation box in the embodiment;

[0038] Figure 7 for Figure 6 Cross-sectional view at the middle BB;

[0039] Figure 8 for Figure 7 A partial enlarged view of point D in the middle;

[0040] Figure 9 for Figure 2 A schematic structural diagram of the bottom portion of the flexible support frame in an embodiment;

[0041] Figure 10 for Figure 9 A partial enlarged view of point E in the middle;

[0042] Figure 11 for Figure 3 A structural view of a top view of the interior of the installation box in an embodiment;

[0043] Figure 12 for Figure 7 A partial enlarged view of point F in the middle;

[0044] Figure 13 for Figure 1 A partial enlarged view of point G in the middle;

[0045] Figure 14 for Figure 1 A local enlarged view of the K point in the middle;

[0046] Figure 15 for Figure 1 A partial enlarged view of point H in the middle.

[0047] In the figure: 1. frame, 2. punching hydraulic press, 3. support roller frame, 4. flexible support frame, 41. mounting seat, 42. swing arm, 43. mounting box, 44. elastic push rod, 45. articulated shaft, 5. driving member, 46. connecting ring, 47. active rod, 420. slide groove, 470. sliding end, 48. gear ring, 471. gear part, 430. through hole, 49. connecting rod, 51. vertical shaft, 52. tapered block, 520. slideway, 491. slider, 53. pressing rod, 54. collar, 55. transmission rod, 56. articulated support, 441. rod body, 4411. articulated end, 4410. limit end, 442. sleeve, 443. spring, 6. screw motor, 7. rangefinder. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0049] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0050] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0053] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0054] like Figures 1 to 15As shown, it shows a hydraulic punching device for a flexible door body of an automobile in an embodiment of the present invention, including a frame 1, two punching hydraulic presses 2 arranged opposite to each other on the frame 1, and two support roller frames 3 located between the two punching hydraulic presses 2 for supporting the automobile door body, one of the support roller frames 3 is slidably connected to the frame 1 to facilitate adjustment of the distance between the two oppositely arranged support roller frames 3. It can be understood that the sliding support roller frame 3 is arranged close to the sliding punching hydraulic press 2, so that the sliding support roller frame 3 will not block the movement of the punching press.

[0055] Secondly, a flexible support frame 4 is provided on the frame 1 between the two support roller frames 3. The flexible support frame 4 is used to support the bottom of the middle portion of the automobile door body placed on the support roller frames 3. During door processing, due to the large length of the automobile door body, especially during punching, the middle portion of the door body is prone to dents or warping. If the punching hydraulic presses on both sides work out of sync or the punching force differs greatly, in extreme cases, the automobile door body may bend slightly in a wavy shape. Therefore, the flexible support frame 4 is used to support the surface placed on the middle portion of the door body.

[0056] It should be noted that the frame 1 is a steel frame formed by welding and has a frame structure. A track is provided on the top surface of the frame 1. The punching hydraulic press 2 can slide along the track, but because of the limiting effect of the track, the punching hydraulic press 2 will not slip off the track. It should be emphasized here that the punching hydraulic press 2 for punching the car door body belongs to the existing technology and will not be described in detail here. In addition, the support roller frame 3 includes a roller frame placed horizontally on the frame 1, and a roller shaft is provided on the roller frame. Rotatable wheels are provided at both ends of the roller shaft, and the positions on both sides of the car door body are supported by the wheels.

[0057] Specifically, the flexible support frame 4 is detachably mounted on the frame body 1. The flexible support frame 4 is fixed to the frame body 1 by bolts or plug-in rods and the circular holes or threaded holes on both sides of the frame body 1. The flexible support frame 4 includes a mounting base 41, a plurality of swing arms 42 hingedly mounted on the top surface of the mounting base 41 in the circumferential direction, a mounting box 43, and an elastic top rod 44. The mounting base 41 can be polygonal or circular. When the mounting base is polygonal, the best way is to have each side of the polygon correspond to a swing arm 42. This solution takes the mounting base 41 as a circular example. The mounting base 41 is detachably fixed to the crossbeam of the frame body 1 by bolts. Six swing arms 42 are hingedly evenly spaced in the circumferential direction of the top surface of the mounting base 41. The swing arms 42 are made of aluminum alloy. The spacing between adjacent swing arms 42 is the same, which ensures that the distance of each swing arm 42 is the same. Of course, if the swing arms 42 need to swing at different distances, there is no need to adjust the distance between the multiple swing arms 42 to the same spacing. The swing arm 42 is arranged horizontally with the mounting base 41, and the swing arm 42 can swing horizontally and expand outward from the mounting base 41. The swing arm 42 is arc-shaped. When the swing arm 42 is retracted, the arc shape of the swing arm 42 can adapt to the outer contour of the mounting base 41, so that the swing arm 42 can be tightened as much as possible to the mounting base 41; it can swing horizontally and expand outward from the mounting base 41. The mounting box 43 is mounted on the end of the swing arm 42 away from the mounting base 41. The mounting box 43 has a prismatic or cylindrical structure. Six elastic push rods 44 are hingedly provided on the outer wall of the mounting box 43. The elastic push rods 44 can swing vertically along the hinge axis 45.

[0058] The driving member 5 is arranged in the installation box 43. The driving member 5 can be a cylinder, an electric push rod, etc. The connecting part of the driving member 5 is provided with a connecting ring 46. The connecting ring 46 is sleeved on the elastic push rod 44. The diameter of the connecting ring 46 is larger than the diameter of the elastic push rod 44 so that the connecting ring 46 provides more activity space for the vertical swing of the elastic push rod 44.

[0059] During operation, the car door body is placed on two support roller frames 3 manually or by a robot, with the middle of the door body located above the flexible support frame 4. Once the car door body is in place, a robot or other external reinforcement device is required to press and limit the top surface of the car door body. Then the driving member 5 is started, and the driving member 5 drives the connecting ring 46 to move toward the axis of the installation box 43. The connecting ring 46 drives the elastic push rod 44 to swing vertically toward the car door body, so that the elastic push rod 44 presses against the middle surface of the car door body, providing support for the middle of the door body. Because the elastic push rod 44 can adapt to the uneven surface of the car door body itself, it supports the car door body like a human hand, so that the elastic push rod 44 has a better support effect on the car door body. Subsequently, the two punching hydraulic presses 2 punch the car door body according to the preset program. During the processing, the flexible support frame 4 continuously and stably supports the middle of the door body to prevent the door body from being deformed by the punching pressure.

[0060] To sum up, this structure supports the middle part of the automobile door body through the flexible support frame 4, which effectively solves the problem that the existing device only supports the two sides of the door body, causing the middle part to be easily deformed, improves the stability of the automobile door body during the punching process, and thus improves the punching accuracy and processing quality, reduces the scrap rate, and improves production efficiency.

[0061] In some examples, six active rods 47 are hingedly provided on the circumferential direction of the top surface of the mounting seat 41. The active rods 47 correspond to the swing arms 42 one by one. The position where the active rods 47 are hinged to the mounting seat 41 is between two adjacent swing arms 42. The active rods 47 can swing along the hinge position with the mounting seat 41. Specifically, the active rods 47 themselves can be electric push rods and hydraulic rods, and a device that can drive the swing of the active rods 47 can also be installed. A slide groove 420 extending along the length direction of the swing arm 42 is provided on the swing arm 42. The slide groove 420 is a T-slot structure. The end of the active rod 47 away from the mounting seat 41 is a sliding end 470. The sliding end 470 is a T-block adapted to the T-slot. The T-block can slide in the slide groove 420 without slipping off. The active rod 47 is used to drive the swing arm 42 to swing back and forth.

[0062] For example, Figure 1-Figure 4 As shown, during operation, if the size of the automobile door body is large, it is necessary to adjust the support range of the flexible support frame 4 to adapt to the automobile door body. First, the active rod 47 swings around the hinge point with the mounting seat 41. Since the sliding end 470 of the active rod 47 slides in the slide groove 420 of the swing arm 42, the swing of the active rod 47 drives the swing arm 42 to swing horizontally toward the outside of the mounting seat 41 to expand or retract inward, thereby achieving adaptive support adjustment for automobile door bodies of different sizes. Through the cooperation of the active rod 47 and the slide groove 420, the swing adjustment of the swing arm 42 is more flexible and convenient, and can quickly adapt to the support requirements of automobile door bodies of different sizes, thereby enhancing the versatility and applicability of the device and improving the flexibility in the production process.

[0063] In some examples, a ring gear 48 is rotatably provided on the top surface of the mounting seat 41. The ring gear 48 is driven by an electric roller or a built-in motor drive roller installed on the top surface of the mounting seat 41 and located in the circular hole in the middle of the ring gear. The ring gear 48 is coaxially arranged with the mounting seat 41; the active rod 47 has a gear portion 471 in the axial direction on the end face close to the mounting seat 41. The gear portion 471 and the active rod 47 are an integrated structure. The gear portion 471 is a ring-shaped gear tooth. The gear portion 471 is engaged with the ring gear 48. The ring gear 48 is used to drive several active rods 47 to swing synchronously.

[0064] For example, Figure 2-Figure 5As shown, when the positions of multiple swing arms 42 need to be adjusted simultaneously, the ring gear 48 is driven to rotate by an electric roller or a built-in motor drive roller. When the ring gear 48 rotates, it drives the active rod 47 engaged with it to swing synchronously. The active rod 47 then drives the corresponding swing arm 42 to swing horizontally toward the outside of the mounting seat 41 or retract inward through the cooperation of the sliding end 470 and the slide groove 420, thereby achieving rapid and precise support adjustment for automobile doors of different sizes. The meshing transmission structure of the ring gear 48 and the gear part 471 can achieve synchronous drive of multiple active rods 47, thereby achieving synchronous adjustment of multiple swing arms 42, improving adjustment efficiency, ensuring the consistency and accuracy of adjustment of each swing arm 42, and enhancing the adaptability and processing stability of the device to different automobile doors.

[0065] In some examples, six through holes 430 are evenly distributed along the circumferential direction on the peripheral wall of the mounting box 43. The number of through holes 430 is the same as the number of elastic push rods 44, and the two correspond one to one. The through holes 430 are arranged horizontally, and a connecting rod 49 is slidably arranged in the through holes 430. The connecting rod 49 has a flat structure and passes through the through holes 430. The end of the connecting rod 49 near the elastic push rod 44 is fixedly connected to the connecting ring 46 by welding, and the other end of the connecting rod 49 slides against the outer wall of the conical block 52. The driving member 5 includes a vertical shaft 51 and a conical block 52. The conical block 52 can be an inverted cone or an inverted pyramid. It should be noted that when the conical block 52 is a pyramid, each side of the pyramid needs to correspond to a connecting rod 49. A vertical shaft 51 is arranged axially along the mounting box 43 and slides through the mounting box 43. A limit block is provided on the vertical shaft 51 to prevent the vertical shaft 51 from escaping from the mounting box 43. The vertical shaft 51 can move up and down along the axial direction of the mounting box 43. A conical block 52 is fixedly mounted on the vertical shaft 51 and is located within the mounting box 43. It can move up and down with the vertical shaft 51. The conical block 52 has a smooth tapered surface to reduce friction with the connecting rod 49.

[0066] For example, Figure 6-Figure 8 As shown, when the elastic push rod 44 needs to press against the car door body, the vertical shaft 51 is pushed upward by an external driving mechanism (such as a cylinder), and the vertical shaft 51 drives the conical block 52 to move upward. It should be noted that because the conical block 52 is inverted and the connecting rod 49 cannot move longitudinally due to the limiting effect of the through hole 430, it can only move laterally. Therefore, when the conical block 52 moves upward, the surface with a smaller diameter of the conical block 52 or the tip of the conical block 52 gradually moves upward, and the outer peripheral wall of the conical block 52 will pull the connecting rod 49 toward the axis of the installation box 43, so that the connecting rod 49 moves along the through hole 430 toward the axis of the installation box 43, and the connecting rod 49 pulls the connecting ring 46 to move toward the axis of the installation box 43, thereby driving the elastic push rod 44 to swing vertically toward the car door body, thereby realizing the pressure support of the elastic push rod 44 on the car door body.

[0067] Through the transmission structure of the vertical shaft 51, the conical block 52 and the connecting rod 49, the up and down movement of the vertical shaft 51 can be converted into the vertical swing of the elastic push rod 44, thereby achieving precise control of the elastic push rod 44, ensuring that the elastic push rod 44 can be accurately and stably pressed against the car door body, providing reliable support force for the door body, and improving the stability and reliability of the support.

[0068] In some examples, six slideways 520 are provided on the outer peripheral wall of the conical block 52. The number of slideways 520 matches the number of connecting rods 49, and there is a one-to-one correspondence between the slideways 520 and the connecting rods 49. The slideways 520 extend in the same direction as the generatrix of the conical block 52, and the slideways 520 are dovetail groove structures or T-shaped structures. A slider 491 is fixedly provided on the end surface where the connecting rod 49 abuts the conical block 52. The slider 491 is a dovetail-shaped slider 491 or a T-shaped slider 491 that matches the dovetail groove. The slider 491 slides within the slideway 520 so that the connecting rod 49 does not slip off the conical block 52 when the conical block 52 moves up and down, thereby facilitating the pulling or pushing action of the conical block 52 on the connecting rod 49.

[0069] For example, Figure 7-Figure 8 As shown, during operation, when the vertical shaft 51 drives the conical block 52 upward, the slider 491 at the end of the connecting rod 49 slides within the slideway 520 of the conical block 52. Due to the guiding function of the slideway 520, it should be noted that the slider 491 will not slip off the slideway 520. Therefore, under the connecting, guiding, and limiting functions of the slideway 520, the slider 491 is ensured to always slide along the slideway 520. This ensures that the connecting rod 49 can only move along the through hole 430 toward the axis of the installation box 43, making the movement of the connecting rod 49 more stable and avoiding transmission errors caused by shaking, thereby ensuring that the elastic push rod 44 can swing in the expected direction and angle and quickly press against the automobile door body. This further improves the reliability and stability of the flexible support frame 4 in supporting the automobile door body, and helps to improve the punching processing accuracy of the automobile door body.

[0070] In some examples, the driving member 5 further includes a pressing rod 53, a collar 54, and a transmission rod 55. The pressing rod 53 is arranged along the central axis of the mounting seat 41 and is slidably disposed on the mounting seat 41. When the automobile door body is not placed, the top surface of the pressing rod 53 is higher than the top surface of the support roller frame 3, which facilitates the contact between the pressing rod 53 and the automobile door body. The top end of the pressing rod 53 is used to contact the automobile door body. When the automobile door body is placed on the top surface of the support roller frame 3, the automobile door body presses the pressing rod 53 toward the bottom of the support roller frame 3 under the action of its own gravity. At this time, the pressing rod 53 can also support the middle part of the automobile door body.

[0071] It should also be noted that after the automobile door body of the present application is placed on the support roller frame 3, it will be limited and fixed on the top surface of the automobile door body. For example, a limiting plate or baffle is set on the top surface of the automobile door body to limit the top surface of the automobile door body. In this way, the top and bottom surfaces of the automobile door body can be limited and fixed in combination with the pressing rod 53 and the elastic push rod 44, ensuring the support and limit of the middle part of the automobile door body. In order to fix the top surface of the automobile door body, setting a liftable limiting plate or baffle is a conventional technical means and is not specifically limited here.

[0072] Secondly, the collar 54 is cylindrical and is slidably mounted on the pressing rod 53. The collar 54 is located below the bottom surface of the mounting seat 41. The collar 54 can slide around the outer peripheral wall of the pressing rod 53. A retaining ring is provided on the upper and lower sides of the pressing rod 53 near the collar 54. The retaining ring can ensure that the collar 54 can move up and down synchronously with the pressing rod 53. There are several hinged parts at equal intervals on the circumference of the outer wall of the collar 54 for connecting the transmission rod 55. The transmission rod 55 is a telescopic rod structure. One end of the transmission rod 55 is connected to the collar 55. The hinged connection at the outer peripheral wall of the mounting bracket 43 can be achieved by a ball joint or a pin. The other end of the transmission rod 55 extends to the bottom end of the corresponding vertical shaft 51. The bottom end of the vertical shaft 51 is inlaid with a small ball. The vertical shaft 51 abuts the end of the transmission rod 55 through the small ball. The hinged support 56 is mounted on the bottom surface of the mounting box 43 via a bearing, allowing for flexible rotation. The rod body 441 of the transmission rod 55 is hinged to the hinged support 56, allowing the transmission rod 55 to extend and retract with the swing of the swing arm 42, similar to the principle of a seesaw. When the collar 54 moves downward with the pressing rod 53, the transmission rod 55, supported by the hinged support 56, can push the vertical shaft 51 upward.

[0073] For example, Figures 9-11 As shown, specifically, in actual operation, the automobile door body is placed on the support roller frame 3 using a manipulator or a conveyor belt. The middle part of the automobile door body presses down the pressing rod 53 under the action of its own gravity, and the pressing rod 53 drives the collar 54 downward. During the downward movement of the collar 54, the hinged transmission rod 55, supported by the hinged support 56, pushes the vertical shaft 51 upward. The vertical shaft 51 drives the conical block 52 upward, and the conical block 52 pushes the connecting rod 49, causing the connecting rod 49 to move along the through hole 430 toward the axis of the installation box 43. The connecting rod 49 pulls the connecting ring 46 toward the axis of the installation box 43, thereby driving the elastic push rod 44 to swing vertically toward the automobile door body, realizing the automatic pressure support of the elastic push rod 44 on the automobile door body. When the swing arm 42 swings and adjusts, the transmission rod 55, acting as a telescopic rod, can be extended and retracted accordingly to ensure smooth transmission.

[0074] The above structure automatically supports the elastic push rod 44 after the vehicle door is placed, without the need for additional drive control. Once the vehicle door is placed on the support roller frame 3, the center portion of the door bottom surface is supported, simplifying the operation process and improving work efficiency. Furthermore, the telescopic rod structure of the transmission rod 55 and the articulated support 56 ensure the transmission stability and reliability of the device during adjustment of the swing arm 42 and normal operation, enhancing the practicality of the device.

[0075] In some examples, the transmission rod 55 adopts a multi-stage telescopic sleeve structure, which consists of an inner sleeve and an outer sleeve. The inner sleeve can slide in the outer sleeve and can be adjusted to different lengths under the drive of the swing arm 42 to meet the transmission requirements of the swing arm 42 at different swing angles.

[0076] For example, Figure 12 As shown, when the swing arm 42 swings horizontally outward from the mounting base 41 to expand or retract inward, the transmission rod 55 retracts and contracts accordingly based on the swing angle of the swing arm 42. For example, when the swing arm 42 swings outward, the inner sleeve of the transmission rod 55 extends from the outer sleeve, increasing the length of the transmission rod 55; when the swing arm 42 retracts inward, the inner sleeve retracts into the outer sleeve, shortening the length of the transmission rod 55. This ensures that the transmission rod 55 can always effectively transmit power during the swinging process of the swing arm 42, allowing the vertical shaft 51 to normally drive the elastic push rod 44 to swing.

[0077] The telescopic rod structure of the transmission rod 55 can adapt to the different swinging states of the swing arm 42, ensuring the effectiveness and stability of the transmission under various conditions, avoiding the situation where the transmission rod 55 cannot work normally due to the swinging of the swing arm 42, further improving the reliability and adaptability of the device, and ensuring that the flexible support frame 4 can operate stably in different working scenarios.

[0078] In some examples, the elastic push rod 44 includes a rod body 441 and a sleeve 442. The rod body 441 is a cylindrical metal rod having a hinged end 4411 and a limiting end 4410. The rod body 441 is hingedly connected to the outer peripheral wall of the installation box 43 via the hinged end 4411. Specifically, the limiting end 4410 of the rod body 441 is a disc or plate with a diameter larger than the diameter of the rod body 441 and the same inner diameter as the sleeve 442, which is bolted to the end surface of the rod body 441 away from the installation box 43. The disc or plate is used to limit the sleeve 442.

[0079] It should be noted that the top surface of sleeve 442 is threadedly connected to an end cap, which seals the top surface of sleeve 442. It should be understood that the threaded connection between the end cap and the top surface of sleeve 442 described in this application is only one of the common detachable methods. To connect the end cap and sleeve 442, other methods such as snap-fitting and clamping can also be used, and are not limited to threaded connections. The bottom surface of sleeve 442 only allows the rod body 441 to enter and exit. Sleeve 442 is mounted on the limit end 4410 of rod body 441. It should be emphasized that when assembling the spring push rod 44, because the limiting end 4410 of the rod body 441 composed of a disc or a circular plate is connected to the rod body 441 by bolts, when it is necessary to install the sleeve 442 on the rod body 441, it is necessary to first remove the disc or disc from the rod body 441, then insert the bottom surface of the sleeve 442 onto the rod body 441, and when the top surface of the rod body 441 is exposed from the sleeve 442, install the disc or disc to the top of the rod body 441, then install the spring 443 on the sleeve 442 and the disc, and finally install the end cover into the sleeve 442. It should be emphasized that the spring 443 is a compression spring, and the spring 443 is used to push the sleeve 442 so that the inner top surface of the sleeve 442 is away from the limiting end 4410.

[0080] In addition, in order to prevent the elastic push rod 44 from scratching the car door body, a rubber pad or sponge layer can be wrapped on the outer wall of the sleeve 442.

[0081] For example, Figure 12 As shown, specifically, in actual operation, when elastic push rod 44 presses against the surface of the automobile door, if the surface of the automobile door is uneven, the door will apply pressure to sleeve 442, which will compress spring 443 and slide along the limit end 4410 of rod body 441, allowing sleeve 442 to better fit the surface of the automobile door. When the pressure disappears, spring 443 resumes its elastic deformation, pushing sleeve 442, causing sleeve 442 to return to its original position and maintain the pressure against the surface of the automobile door.

[0082] The elastic push rod 44 can be adaptively adjusted according to the shape of the car door surface, realizing flexible pressure on door surfaces of different shapes, enhancing the adaptability of the flexible support frame 4 to the car door, improving the supporting effect, and ensuring the stability and processing accuracy of the car door during the punching process.

[0083] In some examples, two punching hydraulic presses 2 are arranged opposite each other along the length of the frame 1, with one punching hydraulic press 2 being mounted on the frame 1 via a slide rail and a slider 491 mechanism, allowing it to slide along the length of the frame 1. The slide rail is fixed to the frame 1, and the slider 491 is connected to the base of the punching hydraulic press 2 to ensure smooth sliding of the punching hydraulic press 2.

[0084] For example, Figure 13As shown, when processing automobile doors of varying sizes, the operator manually or electrically controls the sliding rails to move the hydraulic punching machines 2 along the length of the frame 1, adjusting the distance between the two hydraulic punching machines 2 to suit the door processing requirements. Once this adjustment is complete, the door is punched. This slidable hydraulic punching machine 2 allows the device to adapt to processing automobile doors of varying sizes, improving its versatility and reducing the need to replace equipment due to varying door sizes, thereby reducing production costs and improving efficiency.

[0085] In some examples, a screw motor 6 is provided on the frame 1. The screw of the screw motor 6 is connected to the base of the punching hydraulic press 2 via a nut pair. The screw motor 6 can drive the punching hydraulic press 2 to move along the length of the frame 1. The frame 1 is also provided with a distance meter 7. The distance meter 7 uses a laser distance sensor or a scale and is installed on one side of the frame 1 to measure the travel distance of the punching hydraulic press 2.

[0086] In some examples, using a laser rangefinder as an example, when the position of the punching hydraulic press 2 needs to be adjusted, the operator enters the target distance into the control system, which then activates the screw motor 6, which drives the screw to rotate, thereby driving the punching hydraulic press 2 along the length of the frame 1 through the nut pair. During the movement, the rangefinder 7 monitors the movement distance of the punching hydraulic press 2 in real time and feeds the data back to the control system. When the punching hydraulic press 2 moves to the target position, the control system stops the screw motor 6, achieving precise positioning of the punching hydraulic press 2, and then proceeds with the punching process of the automobile door body.

[0087] The coordinated use of the screw motor 6 and the rangefinder 7 realizes the automated and precise positioning of the punching hydraulic press 2, improves the accuracy and efficiency of positioning, reduces manual operation errors, ensures the accuracy and quality of the punching processing of the automobile door body, and further improves the production efficiency and processing stability of the automobile door body.

[0088] In summary, the working principle of this solution is as follows: when punching is required on a car door, the car door is first placed on the two support roller frames 3, with the middle portion of the door correspondingly positioned above the flexible support frame 4. At this point, the car door presses down on the pressing rod 53, which drives the collar 54 downward. During the downward movement of the collar 54, the hinged transmission rod 55, supported by the hinged support 56, pushes the vertical shaft 51 upward. The vertical shaft 51 drives the conical block 52 upward. Due to the sliding fit between the outer peripheral wall of the conical block 52 and the slider 491 at the end of the connecting rod 49, as the conical block 52 moves upward, the conical block 52 pushes the connecting rod 49 along the through hole 430 toward the axis of the installation box 43. The connecting rod 49 pulls the connecting ring 46 toward the axis of the installation box 43, thereby driving the elastic push rod 44 to swing vertically toward the car door, causing the sleeve 442 of the elastic push rod 44 to press against the middle surface of the car door.

[0089] If it is necessary to adjust the support range of the flexible support frame 4 according to the size of the automobile door body, the ring gear 48 can be driven to rotate, and the ring gear 48 drives the active rod 47 engaged with it to swing synchronously, and the sliding end 470 of the active rod 47 slides in the slide groove 420 of the swing arm 42, thereby driving the swing arm 42 to swing horizontally toward the outside of the mounting seat 41 to expand or retract inward, thereby realizing adaptive support for automobile door bodies of different sizes.

[0090] After completing the support adjustment, the screw motor 6 drives the punching hydraulic press 2 to move to the appropriate position, and the rangefinder 7 provides real-time feedback on the moving distance of the punching hydraulic press 2 to ensure accurate positioning. Then the punching hydraulic press 2 performs punching processing on the automobile door body. During the entire processing process, the elastic push rod 44 always provides flexible support to the middle part of the automobile door body to prevent the door body from deformation and displacement.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hydraulic punching device for a flexible door body of an automobile, comprising a frame (1), two hydraulic punching devices (2) arranged opposite to each other on the frame (1), and two support roller frames (3) located between the two hydraulic punching devices (2), characterized in that: The frame (1) is further provided with a flexible support frame (4) located between the two support roller frames (3); The flexible support frame (4) comprises: A mounting seat (41) is detachably mounted on the frame (1), wherein the outer periphery of the mounting seat (41) is hingedly connected to a plurality of swing arms (42) capable of horizontal swinging and extending outward from the mounting seat (41); A mounting box (43) is provided on the swing arm (42), and at least one elastic top rod (44) capable of vertical swinging is hingedly connected to the outer periphery of the mounting box (43); A driving member (5) is arranged in the installation box (43), and the driving member (5) has a connecting ring (46) sleeved on the outer periphery of the elastic push rod (44). The driving member (5) can drive the connecting ring (46) to move toward the axis of the installation box (43) to drive the elastic push rod (44) to swing vertically and press against the lower middle part of the automobile door body.

2. The automobile flexible door line punching hydraulic device according to claim 1, characterized in that: A plurality of active rods (47) are hingedly connected to the outer periphery of the mounting seat (41), and the active rods (47) correspond to the swing arms (42) one by one. A slide groove (420) is provided on the swing arm (42), and the extension direction of the slide groove (420) is the same as the extension direction of the swing arm (42). The end of the active rod (47) away from the mounting seat (41) is a sliding end (470), and the sliding end (470) is slidably connected to the slide groove (420). The active rod (47) is used to drive the swing arm (42) to swing horizontally.

3. The automobile flexible door line punching hydraulic device according to claim 2, characterized in that: A gear ring (48) is rotatably provided on the mounting seat (41), and the gear ring (48) is coaxially arranged with the mounting seat (41); the outer periphery of the hinged end of the active rod (47) has a gear portion (471), and the gear portion (471) is engaged with the gear ring (48), and the gear ring (48) is used to drive a plurality of the active rods (47) to swing synchronously.

4. The automobile flexible door line punching hydraulic device according to claim 1, characterized in that: A plurality of through holes (430) are provided on the peripheral wall of the installation box (43), the through holes (430) corresponding to the elastic push rods (44) one by one, a connecting rod (49) is slidably provided in the through hole (430), the connecting rod (49) passes through the through hole (430), and one end of the connecting rod (49) close to the elastic push rod (44) is fixedly connected to the connecting ring (46), and the driving member (5) comprises: A vertical shaft (51) is provided along the axial direction of the installation box (43) and penetrates the installation box (43) and is slidably engaged with the installation box (43); The conical block (52) is fixedly mounted on the vertical shaft (51) and is located in the installation box (43). One end of the connecting rod (49) away from the connecting ring (46) slides against the outer peripheral wall of the conical block (52). The conical block (52) can move axially with the vertical shaft (51) to pull the connecting rod (49) back toward the axis of the installation box (43) and make the elastic push rod (44) swing vertically.

5. The automobile flexible door line punching hydraulic device according to claim 4, characterized in that: A plurality of slideways (520) are provided on the outer peripheral wall of the conical block (52), and the extending direction of the slideways (520) is the same as the generatrix direction of the conical block (52); A slider (491) is fixedly provided at the end of the connecting rod (49), and the slider (491) is slidably provided in the slideway (520).

6. The automobile flexible door line punching hydraulic device according to claim 4, characterized in that: A hinged support (56) is rotatably provided at the bottom of the installation box (43), and the rotation axis of the hinged support (56) is arranged parallel to the main axis of the installation box (43). The driving member (5) further comprises: A pressing rod (53) is provided along the axial direction of the mounting seat (41) and passes through the mounting seat (41), and the top end of the pressing rod (53) is used to abut against the bottom wall of the middle portion of the automobile door body; A collar (54) is sleeved on the outer periphery of the pressing rod (53) and is located below the bottom surface of the mounting seat (41), wherein the collar (54) and the pressing rod (53) are slidably engaged along the circumferential direction; A transmission rod (55) is hinged below the hinged support (56) and extends radially along the collar (54), one end of the transmission rod (55) is hinged to the collar (54), and the other end is in contact with the vertical shaft (51); When the collar (54) moves downward following the pressing rod (53), the transmission rod (55) can swing vertically under the support of the hinged support (56) and push the vertical shaft (51) to move upward; the hinged support (56) can rotate circumferentially to cooperate with the transmission rod (55) to swing horizontally following the swing arm (42).

7. The automobile flexible door line punching hydraulic device according to claim 6, characterized in that: The transmission rod (55) is a telescopic rod, and the transmission rod (55) can be telescopic following the swing of the swing arm (42).

8. The automobile flexible door line punching hydraulic device according to claim 1, characterized in that: The elastic push rod (44) comprises: A rod body (441), the rod body (441) having a hinge end (4411) and a limiting end (4410), the rod body (441) being hinged to the installation box (43) via the hinge end (4411); A sleeve (442) is sleeved on the limiting end (4410) of the rod body (441). A spring (443) is provided on the limiting end (4410). The spring (443) is located in the sleeve (442). The spring (443) is used to push the sleeve (442) so that the sleeve (442) moves upward and away from the limiting end (4410).

9. The automobile flexible door line punching hydraulic device according to claim 1, characterized in that: The two punching hydraulic presses (2) are arranged opposite to each other along the length direction of the frame (1), and at least one of the punching hydraulic presses (2) is capable of sliding along the length direction of the frame (1).

10. The automobile flexible door line punching hydraulic device according to claim 9, characterized in that: The frame (1) is provided with a screw motor (6), and the screw motor (6) is used to drive the punching hydraulic press (2) to move along the length direction of the frame (1). The frame (1) is provided with a distance meter (7), and the distance meter (7) is used to measure the moving distance of the punching hydraulic press (2).

Images