Water cutting and edge rolling device for automobile door

Abstract

The utility model belongs to the technical field of automobile manufacturing, and particularly relates to an automobile door water cutting edge rolling device which comprises a gun changing disc. The rear end of the binding body is connected to the gun changing disc; the two rolling heads are arranged on the left side and the right side of the front end of the binding body respectively; the two pressing knives are arranged on the upper side and the lower side of the front end of the binding body respectively. The edge rolling device is applied to the edge rolling process in a narrow and small position space, an area which cannot be rolled by a common rolling head can be pressed, and two plates can be completely attached through the cooperation of the two pressing cutters.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and in particular relates to a water-cutting and rolling device for automobile doors. Background Art

[0002] In the process of automobile body-in-white production, one of the hemming processes for the sheet metal hemming of the four door water-cut parts is the robot hemming process. This process usually uses ordinary columnar rollers for hemming. Due to the small space at the A-pillar and B-pillar positions, ordinary rollers cannot achieve complete pressing, which easily causes subsequent loosening problems. Utility Model Content

[0003] The utility model aims to provide a water-cutting and rolling device for automobile doors in order to solve the technical problem that ordinary rolling heads cannot press the positions of A-pillars and B-pillars well.

[0004] In order to solve the above technical problems, the first aspect of the utility model provides a water-cutting and rolling device for automobile doors, the water-cutting and rolling device for automobile doors comprising:

[0005] Change the gun tray;

[0006] A hemming body, the rear end of which is connected to the gun changing plate;

[0007] Two roller heads, the two roller heads are respectively arranged on the left and right sides of the front end of the hemming body;

[0008] Two pressing knives are respectively arranged on the upper and lower sides of the front end of the hemming body.

[0009] Optionally, in the water-cut hemming device for automobile doors as described above, the two rolling heads and the two pressing knives are respectively detachably connected to the hemming body.

[0010] Optionally, in the water-cut hemming device for automobile doors as described above, the two pressing knives are located at the front sides of the two rolling heads.

[0011] Optionally, in the automobile door water-cutting and rolling device as described above, the two pressing knives are arranged opposite to each other, the inner side surfaces of the front parts of the two pressing knives are working surfaces, the front ends of the two pressing knives are both arc-shaped end surfaces, the arc-shaped end surface of the pressing knife located above faces front and downward, and the arc-shaped end surface of the pressing knife located below faces front and upward.

[0012] Optionally, in the aforementioned automobile door water-cutting and rolling device, the two pressing knives are respectively a first pressing knife and a second pressing knife;

[0013] The working surface of the first pressing knife includes a working surface A1, a working surface A2 and a working surface A3 from the rear end to the front end, the working surface A1 is perpendicular to the axial direction of the hemming body, the angle between the working surface A2 and the working surface A1 is an obtuse angle, the angle between the working surface A3 and the working surface A2 is an obtuse angle, and the front end of the working surface A3 is connected to the arc-shaped end surface of the first pressing knife;

[0014] The working surfaces of the second pressing tool include working surface B1, working surface B2 and working surface B3. The angle between the working surface B1 and the axial direction of the rolling body is an obtuse angle, the angle between the working surface B2 and the working surface B1 is an obtuse angle, and the angle between the working surface B3 and the working surface B2 is an obtuse angle. The front end of the working surface B3 is connected to the arc-shaped end surface of the second pressing tool.

[0015] Optionally, in the aforementioned water-cut hemming device for automobile doors, the angle between the length direction of the roller head and the axial direction of the hemming body is an obtuse angle.

[0016] Optionally, in the aforementioned automobile door water-cut hemming device, the two roller heads are respectively a first roller head and a second roller head, and the front outer diameter of the first roller head is smaller than the front outer diameter of the second roller head.

[0017] Optionally, in the aforementioned automobile door water-cut hemming device, the front portion of the first roller head is a columnar structure, the front portion of the second roller head is a truncated cone structure, and the front end outer diameter of the truncated cone structure is greater than the rear end outer diameter.

[0018] Optionally, in the aforementioned automobile door water-cut hemming device, the hemming body comprises a connecting column and a connecting seat from the rear end to the front end, the rear end of the connecting column is connected to the gun changing plate, and the front end of the connecting seat is respectively provided with two of the rolling heads and two of the pressing knives;

[0019] A sleeve is provided in the front part of the connecting column, the rear part of the connecting seat is inserted into and extends out of the sleeve, the connecting seat is limited to the front end of the connecting column, and a receiving cavity is dug on the rear end surface of the connecting seat;

[0020] The automobile door water-cut hemming device further comprises a pressure detection component, which is located in the connecting column and comprises:

[0021] an elastic member, the front end of which abuts against the accommodating cavity of the connecting seat;

[0022] A first mounting block, wherein a mounting shaft is disposed on a front end surface of the first mounting block, and a rear end of the elastic member is disposed outside the mounting shaft;

[0023] A connecting block, the connecting block is connected to the connecting column, and the front end surface of the connecting block is an inclined surface;

[0024] a second mounting block, wherein the rear end face of the second mounting block is an inclined face matching the front end face of the connecting block, and the rear end face of the second mounting block abuts against the front end face of the connecting block;

[0025] A pressure sensor is located between the first mounting block and the second mounting block and connected to the second mounting block.

[0026] Optionally, in the automobile door water-cutting and rolling device as described above, the connecting block is connected to the connecting column by a pressure adjusting bolt, one end of the pressure adjusting bolt is inserted from the outside of the connecting column and connected to the connecting block, and the pressure adjusting bolt is threadedly connected to the connecting column.

[0027] Optionally, in the aforementioned automobile door water-cut hemming device, the pressure adjustment bolt is connected to one side of the connection block or passes through the connection block;

[0028] A pressure regulating limit block is also arranged in the connecting column, and the pressure regulating limit block is located on a side of the connecting block away from the pressure regulating bolt or on the opposite side of the pressure regulating bolt.

[0029] Optionally, in the aforementioned automobile door water-cut hemming device, the connecting column is provided with two quick-release ports communicating with the inside and the outside, one of the quick-release ports is at least located above the pressure sensor, the second mounting block and the connecting block, the pressure regulating limit block is straddled on one of the quick-release ports, and the other quick-release port is at least located below the connecting block;

[0030] The quick-release cover is provided on the upper quick-release cover, and the quick-release cover is detachably connected to the connecting column;

[0031] The quick-release port upper cover below is provided with a quick-release block, the quick-release block is detachably connected to the connecting column, and the pressure regulating bolt is inserted from the quick-release block and threadedly connected to the quick-release block.

[0032] Optionally, in the aforementioned automobile door water-cut hemming device, the rear portion of the connecting seat can rotate within the connecting column around a first direction, wherein the first direction is perpendicular to the axial direction of the connecting column, so that the connecting seat forms a floating connecting seat.

[0033] Optionally, in the aforementioned automobile door water-cut hemming device, a scale is provided on the connecting column, and a pointer is provided on the connecting seat, and the pointer points to the scale.

[0034] Optionally, in the aforementioned automobile door water-cut hemming device, a calibration pin is detachably provided in the connecting column, and a plug interface is provided on the front end face of the connecting seat, and the calibration pin is detachably plugged into the plug interface.

[0035] In order to solve the above technical problems, the second aspect of the utility model provides a method for water-cutting and rolling an automobile door, comprising:

[0036] S1, using a first roller to roll the inner plate edge of the first target stroke to press the angle of the inner plate edge of the first target stroke relative to the outer plate edge from a first angle to a second angle;

[0037] S2, using a first pressing knife to press the edge of the inner plate of the first target stroke, and pressing the angle of the edge of the inner plate of the first target stroke relative to the edge of the outer plate from the second angle to a third angle;

[0038] S3, using a second pressing knife to press the inner plate edge of the first target stroke, and pressing the angle of the inner plate edge of the first target stroke relative to the outer plate edge from the third angle to 0 degrees.

[0039] Optionally, in the automobile door water-cutting and rolling hemming method as described above, in step S2 and step S3, when laminating the inner panel edging of the first target stroke, the knife is cut into the outer side or the inner side of the first target stroke, and the first target stroke is divided into at least two parts, and at least two parts are laminarized respectively by at least two laminating methods.

[0040] Optionally, in the aforementioned automobile door water-cut hemming method, in step S2, after pressing the hemming portion of the inner panel of the first target stroke, a first pressing knife is used to abut against the hemming portion of the inner panel of the first target stroke and slide the first pressing knife once or several times;

[0041] In step S3, after pressing the inner plate edge of the first target stroke, a second pressing knife is used to abut against the inner plate edge of the first target stroke and slide the second pressing knife once or several times.

[0042] Optionally, in the water-cut hemming method for automobile doors as described above, the first angle is 90°, the second angle is 60°, and the third angle is 30°.

[0043] Optionally, in the aforementioned automobile door water cutting and hemming method, the automobile door water cutting and hemming device provided by the first aspect of the utility model is driven by a robot to achieve the result.

[0044] Optionally, in the aforementioned automobile door water-cutting and rolling method, the first target stroke is from the outer side of the B-pillar to the inner side of the B-pillar or from the inner side of the A-pillar to the outer side of the A-pillar.

[0045] Optionally, in the aforementioned automobile door water-cutting and rolling method, it also includes rolling and pressing the inner panel edge of the total target stroke, wherein the total target stroke includes a first target stroke and a second target stroke connected in sequence;

[0046] Then, step S1 includes:

[0047] S11, using a first roller to roll the inner plate edge of the total target stroke, and pressing the angle of the inner plate edge relative to the outer plate edge of the total target stroke from a first angle to a second angle;

[0048] S12, using a second roller to roll the inner plate edge of the second target stroke to press the angle of the inner plate edge relative to the outer plate edge of the second target stroke from the second angle to a third angle;

[0049] After step S2 and before step S3, the method further includes:

[0050] S2-3, use the second roller to roll the inner plate edge of the second target stroke, and press the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the third angle to 0 degrees.

[0051] Optionally, in the aforementioned automobile door water-cut hemming method, the method further includes rolling and pressing the hemming of the inner panel of the total target stroke, wherein the total target stroke includes two first target strokes and one second target stroke, the second target stroke is located between the two first target strokes, and the lengths of the two first target strokes are the same or different;

[0052] Then, the automobile door water cutting and rolling method comprises:

[0053] S11, using a first roller to roll the inner plate edge of the total target stroke, and pressing the angle of the inner plate edge relative to the outer plate edge of the total target stroke from a first angle to a second angle;

[0054] S12, using a second roller to roll the inner plate edge of the second target stroke to press the angle of the inner plate edge relative to the outer plate edge of the second target stroke from the second angle to a third angle;

[0055] S2, using two first pressing knives to press the inner plate edges of the two first target strokes simultaneously, and pressing the angle of the inner plate edges of the two first target strokes relative to the outer plate edges from the second angle to the third angle;

[0056] S2-3, using a second roller to roll the inner plate edge of the second target stroke, and pressing the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the third angle to 0 degrees;

[0057] S3, using two second pressing knives to press the inner plate edges of the two first target strokes simultaneously, and pressing the angle of the inner plate edges of the two first target strokes relative to the outer plate edges from the third angle to 0 degrees.

[0058] Optionally, in the aforementioned method for water-cutting and rolling hemming of automobile doors, rolling and pressing are realized by two of the water-cutting and rolling hemming devices for automobile doors provided by the first aspect of the utility model;

[0059] The left robot drives a car door water-cutting and rolling device to realize the rolling action of step S11 and step S12;

[0060] The right robot drives the other automobile door water-cutting and rolling device to realize the rolling action of step S2-3;

[0061] The left robot and the right robot drive their respective automobile door water-cutting and rolling devices to realize the pressing action of the two first target strokes in step S2 and step S3.

[0062] The positive progressive effect of the utility model is that the utility model is applied to the hemming process in a narrow space, and can press the area that the ordinary roller head cannot roll, and the cooperation of the two pressing knives can achieve complete fitting of two plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0064] Figure 1 A schematic diagram of the structure of the water-cut hemming device for automobile doors of the utility model;

[0065] Figure 2 for Figure 1 Side view of

[0066] Figure 3 for Figure 1 A top view of

[0067] Figure 4 for Figure 1 Partial exploded view;

[0068] Figure 5 for Figure 4 A partial enlarged view of the

[0069] Figure 6 for Figure 4 Another partial enlarged view;

[0070] Figure 7 A structural schematic diagram of the first pressing knife of the utility model;

[0071] Figure 8 for Figure 7 Side view of

[0072] Fig. 9 A structural schematic diagram of the second pressing knife of the utility model;

[0073] Fig.10 for Fig. 9 Side view of

[0074] Fig.11 The utility model is a process flow chart of the method. DETAILED DESCRIPTION

[0075] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0076] It should be noted that the following embodiments and features therein may be combined with each other if there is no conflict.

[0077] In the description of the present invention, it should be noted that directional words such as the terms "outside", "middle", "inside", "outside", etc., which indicate directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0079] Reference Figures 1 to 4 The embodiment of the utility model provides a water-cutting and rolling device for automobile doors, which comprises a gun-changing plate 1, a rolling body 2, two rolling heads 3 and two pressing knives 4.

[0080] The gun changing plate 1 is used for being detachably connected with the robot, so that the robot can carry the automobile door water cutting and rolling device of the utility model to perform the rolling process.

[0081] The rear end of the hemming body 2 is connected to the gun changing plate 1, the axial direction of the hemming body 2 is the front-to-back direction, and the two roller heads 3 are respectively arranged on the left and right sides of the front end of the hemming body 2. The two pressing knives 4 are respectively arranged on the upper and lower sides of the front end of the hemming body 2.

[0082] Compared with the prior art, the utility model integrates two roller heads 3 and adds two pressing knives 4. When in use, one of the roller heads 3 or one of the pressing knives 4 works. When the roller head 3 or the pressing knives 4 needs to be switched, the robot rotates the car door water-cutting hemming device to achieve the switching action. The utility model is applied to the hemming process in a narrow space, and can press the area that the ordinary roller head cannot roll. The cooperation of the two pressing knives 4 can achieve the complete fitting of two plates.

[0083] In some embodiments, the two roller heads 3 and the two pressing knives 4 are detachably connected to the hemming body 2 , respectively, so as to facilitate replacement or maintenance of the roller heads 3 and the pressing knives 4 .

[0084] In some embodiments, the two pressing knives 4 are located at the front sides of the two rolling heads 3 .

[0085] Since the pressing knife 4 does not move along the length direction of the plate like the rolling head 3 when performing the pressing action, but rotates around the length direction of the plate, the pressing knife 4 presses the inner plate outward when rotating at a certain target position, so that the inner plate is closer to the outer plate. Therefore, the pressing knife 4 is located in front of the rolling head 3, which can prevent the rolling heads 3 on both sides from hitting other parts of the plate and causing damage when the pressing knife 4 rotates.

[0086] In some embodiments, two pressing knives 4 are arranged opposite to each other, and the inner side surfaces of the front parts of the two pressing knives 4 are working surfaces. The front ends of the two pressing knives 4 are both arc-shaped end surfaces, and the arc-shaped end surface of the upper pressing knife 4 faces forward and downward, while the arc-shaped end surface of the lower pressing knife 4 faces forward and upward.

[0087] Since the front end of the pressing blade 4 will abut against the plate when performing the pressing or sliding action, the design of the arc-shaped end surface can reduce damage to the plate when performing the pressing or sliding action.

[0088] In some embodiments, reference Figures 1 to 4 , Figures 7 to 10 The two pressing knives 4 are respectively a first pressing knife 41 and a second pressing knife 42.

[0089] Reference Figure 7 and Figure 8 The working surface of the first pressing tool 41 includes a working surface A1, a working surface A2 and a working surface A3 from the rear end to the front end. The working surface A1 is perpendicular to the axial direction of the rolling body 2. The angle a1 between the working surface A2 and the working surface A1 is an obtuse angle. The angle a2 between the working surface A3 and the working surface A2 is an obtuse angle. The front end of the working surface A3 is connected to the arc-shaped end surface 411 of the first pressing tool 41.

[0090] Reference Fig. 9 and Fig.10 The working surfaces of the second pressing tool 42 include working surface B1, working surface B2 and working surface B3. The angle b1 at which the working surface B1 intersects the axial direction of the rolling body 2 is an obtuse angle. The angle b2 between the working surface B2 and the working surface B1 is an obtuse angle. The angle b3 between the working surface B3 and the working surface B2 is an obtuse angle. The front end of the working surface B3 is connected to the arc-shaped end surface 421 of the second pressing tool 42.

[0091] In some embodiments, reference Figure 3 The angle 3a formed by the longitudinal direction of the roller head 3 and the axial direction of the roller body 2 is an obtuse angle.

[0092] In some embodiments, reference Figures 1 to 4 The two roller heads 3 are respectively a first roller head 31 and a second roller head 32 , and the front outer diameter of the first roller head 31 is smaller than the front outer diameter of the second roller head 32 .

[0093] In some embodiments, the front portion of the first roller head 31 is a columnar structure, and the front portion of the second roller head 32 is a truncated cone structure, wherein the front end outer diameter of the truncated cone structure is greater than the rear end outer diameter.

[0094] In some embodiments, reference Figure 4 The hemming body 2 includes a connecting column 21 and a connecting seat 22 from the rear end to the front end. The rear end of the connecting column 21 is connected to the gun changing plate 1. The connecting column 21 is preferably detachably connected to the gun changing plate 1. Two roller heads 3 and two pressing knives 4 are respectively arranged at the front end of the connecting seat 22.

[0095] A sleeve 23 is provided in the front of the connecting column 21 , and the rear of the connecting seat 22 is inserted into and extends out of the sleeve 23 . The connecting seat 22 is limited to the front end of the connecting column 21 , and a receiving cavity is dug on the rear end surface of the connecting seat 22 .

[0096] Reference Figure 4 and Figure 5 The automobile door water-cut hemming device also includes a pressure detection component, which is located in the connecting column 21. The pressure detection component includes an elastic member 51, a first mounting block 52, a connecting block 53, a second mounting block 54 and a pressure sensor 55.

[0097] The front end of the elastic member 51 abuts against the accommodating cavity of the connecting seat 22. A mounting shaft 56 is provided on the front end face of the first mounting block 52, the axial direction of the mounting shaft 56 is consistent with the axial direction of the hemming body 2, and the rear end of the elastic member 51 is provided on the outer sleeve of the mounting shaft 56. The connecting block 53 is connected to the connecting column 21, and the front end face of the connecting block 53 is an inclined surface. The rear end face of the second mounting block 54 is an inclined surface that matches the front end face of the connecting block 53, and the rear end face of the second mounting block 54 abuts against the front end face of the connecting block 53. The pressure sensor 55 is located between the first mounting block 52 and the second mounting block 54 and is connected to the second mounting block 54.

[0098] In this embodiment, the force exerted by the roller head 3 or the press knife 4 on the plate can be detected by the pressure sensor 55, and the pressure sensor 55 can be connected to the robot controller for controlling the robot, and an alarm can be issued when the force is greater than a preset range. On the other hand, the design of the elastic member 51 enables the roller head 3 or the press knife 4 to play a certain buffering and protective role on the force of the plate during operation, thereby avoiding hard contact damage.

[0099] In some embodiments, the elastic member 51 is a spring.

[0100] In some embodiments, reference Figure 4 The connecting block 53 is connected to the connecting column 21 through a pressure regulating bolt 57 , one end of the pressure regulating bolt 57 is inserted from the outside of the connecting column 21 and connected to the connecting block 53 , and the pressure regulating bolt 57 is threadedly connected to the connecting column 21 .

[0101] The connecting block 53 can be driven to move up and down by rotating the pressure adjusting bolt 57. Since the front end face of the connecting block 53 is an inclined face, it abuts against the rear end face of the second mounting block 54. Therefore, during the up and down movement of the connecting block 53, the axial position of the second mounting block 54 can be adjusted along the rolling body 2, and finally the force exerted by the elastic member 51 on the pressure sensor 55 in the initial state can be adjusted.

[0102] In some embodiments, reference Figure 4 The pressure regulating bolt 57 is connected to one side of the connecting block 53 or passes through the connecting block 53. A pressure regulating stopper 58 is also provided in the connecting column 21. The pressure regulating stopper 58 is located on a side of the connecting block 53 away from the pressure regulating bolt 57 or on the opposite side of the pressure regulating bolt 57.

[0103] The pressure-adjusting limit block 58 can limit the upward movement distance of the connecting block 53 . If the connecting block 53 moves too far upward, the rear end of the elastic member 51 is likely to fall off the mounting shaft 56 .

[0104] In some embodiments, two quick-release ports connecting the inside and the outside are provided on the connecting column 21, one quick-release port 211 is located at least above the pressure sensor 55, the second mounting block 54 and the connecting block 53, the pressure adjustment limit block 58 is straddled on one quick-release port, and the other quick-release port is located at least below the connecting block 53.

[0105] The upper quick release port 211 is covered with a quick release cover 212, which is detachably connected to the connecting column 21. The lower quick release port is covered with a quick release block 213, which is detachably connected to the connecting column 21, and the pressure adjustment bolt 57 is inserted from the quick release block 213 and threadedly connected to the quick release block 213.

[0106] When the pressure sensor 55 needs to be maintained or replaced, the quick-release cover 212 and the quick-release block 213 can be removed, and the pressure sensor can be pushed upward from the bottom to the upper quick-release opening 211, so as to quickly replace the pressure sensor 55 in the connecting column 21.

[0107] In some embodiments, the rear portion of the connection seat 22 can rotate within the connection column 21 around a first direction, and the first direction is perpendicular to the axial direction of the connection column 21 , so that the connection seat 22 forms a floating connection seat 22 .

[0108] The design of the floating connection seat 22 allows the roller head 3 to have a certain micro-motion when rolling along the length direction of the plate, which plays a buffering and protective role on the plate and avoids hard contact damage.

[0109] In some embodiments, the specific structure of the connection base 22 rotatably connected to the connection column 21 can adopt the existing technology.

[0110] You can also use Figure 5 The structure shown:

[0111] The rear section of the connection seat 22 is designed as a rectangular parallelepiped structure 222 and protrudes from the adjacent part of the connection seat 22. A receiving chamber for receiving the rectangular parallelepiped structure is dug at the front of the connection column 21, and at least the front end of the receiving chamber is an open structure. The rectangular parallelepiped structure of the connection seat 22 is confined in the receiving chamber, and when confined, a limiting plate 223 can be provided at the front end of the connection column 21 to prevent the connection seat 22 from falling from the front end.

[0112] A receiving hole is also dug in the connecting column 21, and the front end of the receiving hole is connected to the rear end of the receiving chamber, so that the rear end of the connecting seat 22 can be inserted into the connecting column 21. Of course, a sleeve 23 is provided in the receiving hole for sleeved with the front end of the connecting seat 22.

[0113] Cutouts 224 are provided at the rear ends of the left and right sides of the connecting seat 22 , and open installation grooves are dug at the left and right end faces of the connecting seat 22 , in which a plurality of gaskets 225 are installed.

[0114] In some embodiments, reference Figure 5 A scale 214 is provided on the connecting column 21 , and a pointer 221 is provided on the connecting seat 22 , and the pointer 221 points to the scale 214 .

[0115] Specifically, the pointer 221 may be fixedly connected to the connecting seat 22 via a connecting shaft, and the axial direction of the connecting shaft is the first direction.

[0116] The design of the pointer 221 and the scale 214 allows the user to intuitively understand the rotation range of the connecting seat 22. In the initial situation, it can also be used to determine the coaxiality of the two.

[0117] In some embodiments, reference Figure 4 A calibration pin 61 is detachably provided in the connecting column 21 , and a plug-in interface 62 is provided on the front end surface of the connecting seat 22 , and the calibration pin 61 is detachably plugged into the plug-in interface 62 .

[0118] Specifically, a receiving groove for receiving the calibration pin 61 can be dug on the connecting column 21, and a receiving cover is provided on the receiving groove. When the water-cutting and rolling device for the automobile door does not need to be calibrated, the calibration pin 61 is placed in the receiving groove. When calibration is required, the calibration pin 61 is plugged into the plug interface 62 and calibrated in combination with an external calibration tool.

[0119] In some embodiments, the water-cut hemming device for automobile doors may also include only one roller head 3 , and the roller head 3 is arranged on the left or right side of the front end of the hemming body 2 .

[0120] A design of a roller head 3 can be applied in the case of only the first target stroke.

[0121] The present invention also provides a method for water-cutting and rolling an automobile door, which method comprises the following specific steps:

[0122] S1, using the first roller 31 to roll the inner plate edge of the first target stroke, and pressing the angle of the inner plate edge of the first target stroke relative to the outer plate edge from the first angle to the second angle;

[0123] S2, using the first pressing knife 41 to press the inner plate edge of the first target stroke, and pressing the angle of the inner plate edge of the first target stroke relative to the outer plate edge from the second angle to the third angle;

[0124] S3, using the second pressing knife 42 to press the inner plate edge of the first target stroke, and pressing the angle of the inner plate edge of the first target stroke relative to the outer plate edge from the third angle to 0 degrees.

[0125] The first angle is greater than the second angle, and the second angle is greater than the third angle. Through steps S1 to S3, the angle of the inner panel edge relative to the edge is gradually reduced until they are parallel to each other.

[0126] In some embodiments, in step S2 and step S3, when laminating the inner plate edge of the first target stroke, the knife is cut into the outer side or the inner side of the first target stroke, the first target stroke is divided into at least two parts, and at least two parts are laminarized respectively by at least two laminating methods.

[0127] In this embodiment, whether the pressing knife 4 enters from the outside or the inside can be determined according to the on-site environment and the structure of the plate. The number of parts can be determined according to the distance of the first target stroke and the width of the pressing knife 4 to ensure that after several pressings, the pressing of the first target stroke can be fully covered.

[0128] In some embodiments, in step S2, after pressing the inner plate edge of the first target stroke, the first pressing knife 41 is used to abut against the inner plate edge of the first target stroke and slide the first pressing knife 41 once or several times;

[0129] In step S3, after pressing the inner plate edge of the first target stroke, the second pressing knife 42 is used to abut against the inner plate edge of the first target stroke and slide the second pressing knife 42 once or several times.

[0130] In this embodiment, in order to ensure that there are no wrinkles or unevenness at the interface of the plates after pressing, especially after multiple pressings, the plates are also slid after pressing. During the sliding operation, it is preferred that the pressing knife applies pressure to the plates to slide.

[0131] In some embodiments, the first angle is 90°, the second angle is 60°, and the third angle is 30°.

[0132] In some embodiments, the water-cutting and rolling device for automobile doors provided by the above embodiments of the utility model is implemented by a robot.

[0133] In some embodiments, the first target range is from the outside of the B-pillar to the inside of the B-pillar or from the inside of the A-pillar to the outside of the A-pillar.

[0134] Of course, the first target stroke is not limited to the two target positions mentioned above. The first target stroke of the utility model can also be a narrow space where the rolling process cannot be achieved by using only the roller head.

[0135] In some embodiments, it also includes rolling and pressing the inner plate edge of the total target stroke, and the total target stroke includes a first target stroke and a second target stroke connected in sequence.

[0136] The second target stroke is the position where the roller head can realize the rolling process, and the second target stroke is connected to the first target stroke.

[0137] Then, step S1 includes:

[0138] S11, using the first roller 31 to roll the inner plate edge of the total target stroke, and pressing the angle of the inner plate edge of the total target stroke relative to the outer plate edge from the first angle to the second angle;

[0139] S12, using the second roller 32 to roll the inner plate edge of the second target stroke, and pressing the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the second angle to a third angle;

[0140] After step S2 and before step S3, the method further includes:

[0141] S2-3, use the second roller 32 to roll the inner plate edge of the second target stroke, and press the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the third angle to 0 degrees.

[0142] In some embodiments, the inner plate edge of the total target stroke is also rolled and pressed, and the total target stroke includes two first target strokes and one second target stroke, the second target stroke is located between the two first target strokes, and the lengths of the two first target strokes are the same or different.

[0143] The second target stroke is the position where the roller head can realize the rolling process, and the two sides of the first target stroke are respectively connected to a first target stroke.

[0144] Then, the water cutting and rolling method for automobile doors includes:

[0145] S11, using the first roller 31 to roll the inner plate edge of the total target stroke, and pressing the angle of the inner plate edge of the total target stroke relative to the outer plate edge from the first angle to the second angle;

[0146] S12, using the second roller 32 to roll the inner plate edge of the second target stroke, and pressing the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the second angle to a third angle;

[0147] S2, using two first pressing knives 41 to press the inner plate edges of the two first target strokes at the same time, and pressing the angle of the inner plate edges of the two first target strokes relative to the outer plate edges from the second angle to the third angle;

[0148] S2-3, using the second roller 32 to roll the inner plate edge of the second target stroke, and pressing the angle of the inner plate edge of the second target stroke relative to the outer plate edge from the third angle to 0 degrees;

[0149] S3, using two second pressing knives 42 to press the inner plate edges of the two first target strokes simultaneously, and pressing the angle of the inner plate edges of the two first target strokes relative to the outer plate edges from the third angle to 0 degrees.

[0150] In some embodiments, two automobile door water-cutting and rolling devices provided by the first aspect of the utility model are used to achieve rolling and pressing; a left-side robot drives one automobile door water-cutting and rolling device to achieve the rolling action of steps S11 and S12; a right-side robot drives another automobile door water-cutting and rolling device to achieve the rolling action of steps S2-3; the left-side robot and the right-side robot drive their respective automobile door water-cutting and rolling devices to achieve the pressing action of the two first target strokes in steps S2 and S3.

[0151] In some embodiments, if the second target stroke is a plurality of non-continuous situations, in step S12 and step S2-3, a plurality of second rollers 32 are used to roll the inner plate edges of a plurality of second target strokes simultaneously;

[0152] If the first target stroke is a plurality of non-continuous cases greater than two, in step S2 and step S3, a plurality of first pressing knives 41 and a plurality of second pressing knives 42 are used to press the inner panel edges of the plurality of first target strokes simultaneously.

[0153] Embodiment 1:

[0154] The front door water cutting and rolling process is performed by using a robot connected to a car door water cutting and rolling device. Two robots are needed, namely a left robot and a right robot. Two car door water cutting and rolling devices are needed, each connected to the two robots.

[0155] Reference Fig.11 , the specific steps are:

[0156] 1. The left robot uses the first roller 31 connected thereto to roll the edge of the inner plate 91 from the outer side of the A-pillar to the outer side of the B-pillar, and presses the angle of the edge of the inner plate 91 from the outer side of the A-pillar to the outer side of the B-pillar relative to the edge of the outer plate 92 from 90° to 60°.

[0157] 2. The left robot switches to use the second roller 32 connected to it to roll the edge of the inner plate 91 from the inner side of the B-pillar to the inner side of the A-pillar, and presses the angle of the edge of the inner plate 91 from the inner side of the B-pillar to the inner side of the A-pillar relative to the edge of the outer plate 92 from 60° to 30°.

[0158] 3. ① The left robot switches to use the first pressing tool 41 connected to it to press the edge of the inner panel 91 from the outer side of the B-pillar to the inner side of the B-pillar twice, totaling 140mm, and presses the angle of the edge of the inner panel 91 from the outer side of the B-pillar to the inner side of the B-pillar relative to the edge of the outer panel 92 from 60° to 30°.

[0159] ② The right robot uses the first pressing tool 41 connected to it to press the edge of the inner panel 91 from the inside of the A-pillar to the outside of the A-pillar twice, totaling 140mm, and presses the angle of the edge of the inner panel 91 from the inside of the A-pillar to the outside of the A-pillar relative to the edge of the outer panel 92 from 60° to 30°.

[0160] ① and ② are carried out simultaneously.

[0161] 4. The right robot switches to use the second roller 32 connected to it to roll the edge of the inner plate 91 from the inner side of the B-pillar to the inner side of the A-pillar, and adjusts the angle of the edge of the inner plate 91 from the inner side of the B-pillar to the inner side of the A-pillar relative to the edge of the outer plate 92 from 30° to 0°.

[0162] 5. ① The left robot switches to use the second pressing tool 42 connected to it to press the edge of the inner panel 91 from the outer side of the B-pillar to the inner side of the B-pillar twice, totaling 140mm, and changes the angle of the edge of the inner panel 91 from the outer side of the B-pillar to the inner side of the B-pillar relative to the edge of the outer panel 92 from 30° to 0°.

[0163] ② The right robot switches to use the second pressing tool 42 connected to it to press the edge of the inner panel 91 from the inside of the A-pillar to the outside of the A-pillar twice, totaling 140mm, and changes the angle of the edge of the inner panel 91 from the inside of the A-pillar to the outside of the A-pillar relative to the edge of the outer panel 92 from 30° to 0°.

[0164] ① and ② are carried out simultaneously.

[0165] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the utility model shall be protected within the scope defined by the attached claims.

Claims

1. A water-cut hemming device for automobile doors, characterized in that: The automobile door water cutting and rolling device comprises: Change the gun tray; A hemming body, the rear end of which is connected to the gun changing plate; Two roller heads, the two roller heads are respectively arranged on the left and right sides of the front end of the hemming body; Two pressing knives are respectively arranged on the upper and lower sides of the front end of the hemming body.

2. The automobile door water cutting and rolling device according to claim 1, characterized in that: The two rolling heads and the two pressing knives are respectively detachably connected to the hemming body; And / or, the two pressing knives are located at the front sides of the two rolling heads; And / or, the angle between the length direction of the roller head and the axial direction of the roller body is an obtuse angle; And / or, the two roller heads are respectively a first roller head and a second roller head, and the front outer diameter of the first roller head is smaller than the front outer diameter of the second roller head; And / or, the two roller heads are respectively a first roller head and a second roller head, the front portion of the first roller head is a columnar structure, the front portion of the second roller head is a truncated cone structure, and the front end outer diameter of the truncated cone structure is greater than the rear end outer diameter.

3. The automobile door water-cutting and rolling device according to claim 1, characterized in that: The two pressing knives are arranged opposite to each other, the inner side surfaces of the front parts of the two pressing knives are working surfaces, and the front ends of the two pressing knives are both arc-shaped end surfaces. The arc-shaped end surface of the pressing knife located above faces the front and downward, and the arc-shaped end surface of the pressing knife located below faces the front and upward.

4. The automobile door water-cutting and rolling device according to claim 3, characterized in that: The two pressing knives are respectively a first pressing knife and a second pressing knife; The working surface of the first pressing knife includes a working surface A1, a working surface A2 and a working surface A3 from the rear end to the front end, the working surface A1 is perpendicular to the axial direction of the hemming body, the angle between the working surface A2 and the working surface A1 is an obtuse angle, the angle between the working surface A3 and the working surface A2 is an obtuse angle, and the front end of the working surface A3 is connected to the arc-shaped end surface of the first pressing knife; The working surfaces of the second pressing tool include working surface B1, working surface B2 and working surface B3. The angle between the working surface B1 and the axial direction of the rolling body is an obtuse angle, the angle between the working surface B2 and the working surface B1 is an obtuse angle, and the angle between the working surface B3 and the working surface B2 is an obtuse angle. The front end of the working surface B3 is connected to the arc-shaped end surface of the second pressing tool.

5. The automobile door water-cutting and rolling device according to any one of claims 1 to 4, characterized in that: The hemming body comprises a connecting column and a connecting seat from the rear end to the front end, the rear end of the connecting column is connected to the gun changing plate, and the front end of the connecting seat is respectively provided with two rolling heads and two pressing knives.

6. The automobile door water-cutting and rolling device according to claim 5, characterized in that: A sleeve is provided in the front part of the connecting column, the rear part of the connecting seat is inserted into and extends out of the sleeve, the connecting seat is limited to the front end of the connecting column, and a receiving cavity is dug on the rear end surface of the connecting seat; The automobile door water-cut hemming device further comprises a pressure detection component, which is located in the connecting column and comprises: an elastic member, the front end of which abuts against the accommodating cavity of the connecting seat; A first mounting block, wherein a mounting shaft is disposed on a front end surface of the first mounting block, and a rear end of the elastic member is disposed outside the mounting shaft; A connecting block, the connecting block is connected to the connecting column, and the front end surface of the connecting block is an inclined surface; a second mounting block, wherein the rear end face of the second mounting block is an inclined face matching the front end face of the connecting block, and the rear end face of the second mounting block abuts against the front end face of the connecting block; A pressure sensor is located between the first mounting block and the second mounting block and connected to the second mounting block.

7. The automobile door water-cutting and rolling device according to claim 6, characterized in that: The connection block is connected to the connection column via a pressure regulating bolt, one end of the pressure regulating bolt is inserted from outside the connection column and connected to the connection block, and the pressure regulating bolt is threadedly connected to the connection column.

8. The automobile door water-cutting and rolling device according to claim 7, characterized in that: The pressure regulating bolt is connected to one side of the connecting block or passes through the connecting block; A pressure regulating limit block is also arranged in the connecting column, and the pressure regulating limit block is located on a side of the connecting block away from the pressure regulating bolt or on the opposite side of the pressure regulating bolt.

9. The automobile door water-cutting and rolling device according to claim 8, characterized in that: The connecting column is provided with two quick-release ports communicating with the inside and the outside, one of the quick-release ports is at least located above the pressure sensor, the second mounting block and the connecting block, the pressure regulating limit block is straddled on one of the quick-release ports, and the other quick-release port is at least located below the connecting block; The quick-release cover is provided on the upper quick-release cover, and the quick-release cover is detachably connected to the connecting column; The quick-release port upper cover below is provided with a quick-release block, the quick-release block is detachably connected to the connecting column, and the pressure regulating bolt is inserted from the quick-release block and threadedly connected to the quick-release block.

10. The automobile door water-cutting and rolling device according to claim 5, characterized in that: The rear portion of the connection seat can rotate in the connection column around a first direction, and the first direction is perpendicular to the axial direction of the connection column, so that the connection seat forms a floating connection seat.

11. The water-cut hemming device for automobile doors according to claim 5, characterized in that: The connecting column is provided with a scale, and the connecting seat is provided with a pointer, and the pointer points to the scale.

12. The automobile door water-cutting and rolling device according to claim 5, characterized in that: A calibration pin is detachably provided in the connecting column, and a plug interface is provided on the front end surface of the connecting seat, and the calibration pin is detachably plugged into the plug interface.

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