A floating hem system for a tire membrane

Abstract

The utility model relates to a kind of exempted from tire membrane floating overlock system, including base, floating unit, working unit;Base is provided with floating unit and working unit;Floating unit includes pedestal, first track slide, first overlock head group;First track slide is connected with pedestal;Pedestal is connected with base by first track slide;First overlock head group is connected with pedestal;Working unit includes connecting plate, second track slide, force multiplier cylinder, second overlock head group;Connecting plate is connected with pedestal;Second track slide is connected with pedestal;Second overlock head group is connected with second track slide;Force multiplier cylinder is connected with connecting plate, second track slide respectively.Connecting with prior art, the utility model realizes self-adapting product batch change by floating unit, can exempt from huge overlock tire membrane tooling by floating clamping action, realizes double output force by force multiplier cylinder, adapts most overlock.

Description

Technical Field

[0001] This utility model relates to the field of automotive body-in-white welding technology, and in particular to a tire-free floating hemming system. Background Technology

[0002] Robotics automation technology is now widely used in the manufacturing of automobile (especially passenger cars) body-in-white. With the rapid development of the automotive industry and the accelerated pace of model updates, major automakers are widely adopting automated production technologies to shorten product development cycles and reduce development costs. However, the production process inevitably faces challenges such as land shortages and cash flow constraints due to the large number of models and high production volumes.

[0003] However, existing hemming equipment is complex in structure and expensive; while larger hemming robots and hemming film tooling occupy a lot of space and have a large operating space, making it difficult to achieve the corresponding functions in compact locations; therefore, there is an urgent need for a film-free floating hemming system to achieve film-free hemming, with better and larger space, which is more conducive to robot operation and saves a series of costs such as procurement and processing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a tireless floating hemming system. Through the floating unit, it can adapt to changes in product batches. Through the floating clamping action, it can eliminate the need for bulky hemming tire tooling. Through the force-multiplying cylinder, it can achieve double output force and adapt to most hemming applications.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The purpose of this utility model is to provide a tireless membrane floating edge rolling system, which includes a base, a floating unit, and a working unit. The floating unit and the working unit are arranged on the base. The floating unit includes a base, a first track slider, and a first edge rolling head assembly. The first track slider is connected to the base. The base and the base are connected through the first track slider. The first edge rolling head assembly is connected to the base. The working unit includes a connecting plate, a second track slider, a multiplier cylinder, and a second edge rolling head assembly. The connecting plate is connected to the base. The second track slider is connected to the base. The second edge rolling head assembly is connected to the second track slider. The multiplier cylinder is connected to both the connecting plate and the second track slider.

[0007] Furthermore, the multiplier cylinder includes a cylinder body and a piston rod connected to the cylinder body; the cylinder body is connected to the base via a connecting plate; and the piston rod is connected to the second track slider.

[0008] Furthermore, the tireless membrane floating hemming system also includes a robot connecting flange; the robot connecting flange is connected to the base and is used to connect the robot.

[0009] Furthermore, the tireless floating hemming system also includes a pressure monitoring electro-proportional valve and a pressure sensor; the pressure sensor is connected to the second hemming head assembly and is used to sense the hemming pressure; the pressure monitoring electro-proportional valve is communicatively connected to the pressure sensor; the pressure monitoring electro-proportional valve is communicatively connected to the multiplier cylinder; the pressure monitoring electro-proportional valve inputs a preset pressure and, based on the electrical signal output by the pressure sensor, controls the movement of the piston rod of the multiplier cylinder, thereby driving the movement of the second hemming head assembly, and thus controlling the clamping force of the hemming head.

[0010] Furthermore, the tireless floating edge rolling system also includes an edge rolling precision positioning vision mechanism; the edge rolling precision positioning vision mechanism is connected to the base; the edge rolling precision positioning vision mechanism includes a vision camera, a sensing component, and a protective component; the sensing component includes a distance sensor; the protective component includes a protective cover; the vision camera, sensing component, and protective component are all connected to the base.

[0011] Furthermore, the protective cover is located outside the vision camera and the distance sensor, surrounding the sides of the vision camera and the distance sensor (the sides that do not obstruct the operation of the vision camera and the distance sensor), and the vision camera and the distance sensor are arranged adjacent to each other.

[0012] Furthermore, the distance sensor is a laser sensor or an infrared sensor.

[0013] Furthermore, the precision positioning vision mechanism for edge rolling also includes a controller, which is connected to a vision camera and a distance sensor respectively. When the vision camera identifies a component of the car body in white, it sends an identification signal. The identification signal can be received by the controller and then fed back to the distance sensor, which detects the distance of the component of the car body in white.

[0014] Furthermore, the floating unit also includes a TPC calibration block; the TPC calibration block is connected to the base; the floating unit also includes a first limiting structure; the first limiting structure is connected to the base and is used to limit the floating position of the floating unit. When the upper end of the first track slider abuts against the first limiting structure, the highest point of the floating position is reached, and when the lower end of the first track slider abuts against the base, the lowest point of the floating position is reached.

[0015] Furthermore, the working unit also includes a second limiting structure; the second limiting structure is connected to the base and is used to limit the movement position of the working unit. When the lower end of the second track slider abuts against the second limiting structure, the lowest point of the movement position is reached, and when the upper end of the second track slider abuts against the base, the highest point of the floating position is reached.

[0016] Furthermore, the first edge-rolling head group includes a first edge-rolling head, a second edge-rolling head, a third edge-rolling head, and a fourth edge-rolling head; the first edge-rolling head, the second edge-rolling head, the third edge-rolling head, and the fourth edge-rolling head are all connected to the base; the second edge-rolling head group includes a fifth edge-rolling head and a sixth edge-rolling head; the fifth edge-rolling head and the sixth edge-rolling head are both connected to the second track slider.

[0017] Furthermore, the second hemming head is located above the base; the first, third, and fourth hemming heads are respectively located on different sides of the base; the third and fifth hemming heads are located on the same side and the fifth hemming head is located below the third hemming head; the first and sixth hemming heads are located on the same side and the sixth hemming head is located below the first hemming head.

[0018] Furthermore, the tireless membrane floating hemming system also includes a unit valve and a module; both the unit valve and the module are connected to the base; the unit valve is used to control the inlet and outlet of the air source (connected to the cylinder in the system); the module is an electrical module, serving as a control element.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) The technical solution provides a tire-free floating hemming system, which can adapt to changes in product batches through floating units, eliminate the need for bulky hemming tire tooling through floating clamping action, and achieve double output force through a multiplier cylinder to adapt to most hemming applications.

[0021] 2) The tireless floating hemming system provided in this technical solution further tracks the hemming quality and emergencies in real time by setting up pressure monitoring (pressure monitoring electro-proportional valve).

[0022] 3) The tireless floating edge rolling system provided by this technical solution further utilizes a pressure monitoring electro-proportional valve to control the roller clamping force simply by inputting a preset pressure.

[0023] 4) The tireless floating edge rolling system provided by this technical solution has a simple structure, small space occupation, low cost, and saves money, and is suitable for a variety of different scenarios.

[0024] 5) The tireless membrane floating hemming system provided in this technical solution can make timely adjustments during hemming by cooperating with the hemming head of the floating unit and the hemming head of the working unit, so as to ensure the hemming quality and respond to emergencies in a timely manner. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the tireless membrane floating edge rolling system in an embodiment of the present invention. Figure 1 .

[0026] Figure 2 This is a schematic diagram of the tireless membrane floating edge rolling system in an embodiment of the present invention. Figure 2 .

[0027] Figure 3 This is a schematic diagram of the tireless membrane floating edge rolling system in an embodiment of the present invention. Figure 3 (The robot's connection flange is not shown.)

[0028] in:

[0029] 1. Robot connection flange; 2. Base; 3. Floating unit; 4. Working unit; 5. Pressure monitoring electro-proportional valve; 6. Hemming precision positioning vision mechanism; 7. Individual valve; 8. Module;

[0030] 301, base; 302, first track slider; 303, first edge rolling head; 304, second edge rolling head; 305, third edge rolling head; 306, fourth edge rolling head; 307, TPC calibration block; 308, first limiting structure.

[0031] 401. Connecting plate; 402. Second track slider; 403. Power cylinder; 404. Second limiting structure; 405. Fifth rolling head; 406. Sixth rolling head. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] Example 1

[0038] like Figures 1-3 As shown, this embodiment provides a tireless membrane floating hemming system, which includes a robot connecting flange 1, a base 2, a floating unit 3, and a working unit 4.

[0039] The robot connecting flange 1 is used to connect the robot, and the robot connecting flange 1 is connected to the base 2; the base 2 is provided with a floating unit 3 and a working unit 4.

[0040] The base 2 includes a disc and an L-shaped component connected to the disc. The disc is used to connect to the robot connection flange 1, and the L-shaped component is used to connect to the floating unit 3.

[0041] The base 301 is generally n-shaped, including side plates on both sides and a middle plate connecting the two side plates.

[0042] The floating unit 3 includes a base 301, a first track slider 302, a first edge rolling head group, a TPC calibration block 307, and a first limiting structure 308.

[0043] The first track slider 302 is fixedly connected to the base 301; the base 301 and the base 2 are connected by the first track slider 302, the base 2 is provided with a first slide rail, the first track slider 302 is connected to the first slide rail, and the first track slider 302 can slide on the first slide rail; the first edge-rolling head assembly is connected to the base 301; the TPC calibration block 307 is connected to the base 301; the first limiting structure 308 is connected to the two side plates of the base 301 and is located between the two side plates of the base 301; the first limiting structure 308 is used to limit the floating position of the floating unit 3. When the upper end of the first track slider 302 abuts against the first limiting structure 308, the highest point of the floating position is reached, and when the lower end of the first track slider 302 abuts against the base 2, the lowest point of the floating position is reached.

[0044] The working unit 4 includes a connecting plate 401, a second track slider 402, a multiplier cylinder 403, a second rolling head assembly, and a second limiting structure 404.

[0045] The connecting plate 401 is fixedly connected to the base 301; the second track slider 402 includes a slider part and a main body part connected to the slider part. The slider part of the second track slider 402 is connected to the base 301. The base 301 is provided with a second slide rail. The second track slider 402 is connected to the second slide rail and can slide on the second slide rail; the second rolling head assembly is connected to the main body part of the second track slider 402; the multiplier cylinder 403 is connected to the connecting plate 401 and the second track slider 402 respectively. Specifically, the multiplier cylinder 403 includes... The cylinder body and the piston rod connected to the cylinder body are included. The cylinder body is connected to the base 301 via a connecting plate 401. The piston rod is connected to the second track slider 402. The second limiting structure 404 is connected to the base 301 and is located between the two side plates of the base 301. The second limiting structure 404 is used to limit the movement position of the working unit 4. When the lower end of the second track slider 402 abuts against the second limiting structure 404, the lowest point of the movement position is reached. When the upper end of the second track slider 402 abuts against the base 301, the highest point of the floating position is reached.

[0046] The first edge-rolling head group includes a first edge-rolling head 303, a second edge-rolling head 304, a third edge-rolling head 305, and a fourth edge-rolling head 306; the first edge-rolling head 303, the second edge-rolling head 304, the third edge-rolling head 305, and the fourth edge-rolling head 306 are all connected to the base 301; the second edge-rolling head group includes a fifth edge-rolling head 405 and a sixth edge-rolling head 406; the fifth edge-rolling head 405 and the sixth edge-rolling head 406 are both connected to the second track slider 402. The second rolling head 304 is located above the base 301; the first rolling head 303, the third rolling head 305, and the fourth rolling head 306 are respectively located on different sides of the base 301; the third rolling head 305 and the fifth rolling head 405 are located on the same side, with the fifth rolling head 405 located below the third rolling head 305; the first rolling head 303 and the sixth rolling head 406 are located on the same side, with the sixth rolling head 406 located below the first rolling head 303. The second rolling head 304 and the third rolling head 305 are inclined in the axial direction, and the axial directions of the first rolling head 303, the fifth rolling head 405, and the sixth rolling head 406 are all parallel to the disc of the base 2.

[0047] The first rolling head 303, the second rolling head 304, the third rolling head 305, the fourth rolling head 306, the fifth rolling head 405, and the sixth rolling head 406 are all rolling heads. Each rolling head includes a bearing, a retaining ring, and a rolling head body. The rolling head is connected to a shaft. The shafts connected to the first rolling head 303, the second rolling head 304, the third rolling head 305, and the fourth rolling head 306 are all connected to the base 301. The shafts connected to the fifth rolling head 405 and the sixth rolling head 406 are all connected to the second track slider 402. The bearing is connected to both the bearing and the rolling head body. The rolling head body can rotate around the shaft. The retaining ring is connected to both the bearing and the shaft. The retaining ring is used to prevent axial displacement of the bearing.

[0048] Example 2

[0049] This embodiment provides a tireless floating edge rolling system. Based on Embodiment 1, this embodiment further includes the following settings:

[0050] The tireless membrane floating hemming system also includes a pressure monitoring electro-proportional valve 5 and a pressure sensor; the pressure sensor is connected to the second hemming head assembly and is used to sense the hemming pressure; the pressure monitoring electro-proportional valve 5 is communicatively connected to the pressure sensor; the pressure monitoring electro-proportional valve 5 is communicatively connected to the multiplier cylinder 5; the pressure monitoring electro-proportional valve 5 inputs a preset pressure, and according to the electrical signal output by the pressure sensor, controls the movement of the piston rod of the multiplier cylinder 5, thereby driving the movement of the second hemming head assembly, and thus controlling the clamping force of the hemming head.

[0051] The pressure monitoring electric proportional valve 5 is either a commercially available or purchased component.

[0052] Example 3

[0053] This embodiment provides a tireless floating edge rolling system. Based on Embodiment 1 or Embodiment 2, this embodiment further includes the following settings:

[0054] The tireless floating edge rolling system also includes an edge rolling precision positioning vision mechanism 6; the edge rolling precision positioning vision mechanism 6 is connected to the base 301; the edge rolling precision positioning vision mechanism 6 includes a vision camera, a sensing component, and a protective component; the sensing component includes a distance sensor; the protective component includes a protective cover; the vision camera, sensing component, and protective component are all connected to the base 301.

[0055] The protective cover is located outside the vision camera and the distance sensor, surrounding the sides of the vision camera and the distance sensor (the sides that do not obstruct the operation of the vision camera and the distance sensor), and the vision camera and the distance sensor are arranged adjacent to each other.

[0056] The vision camera is either a commercially available or purchased component.

[0057] The distance sensor is a laser sensor or an infrared sensor, and can be a commercially available or purchased component.

[0058] The precision positioning vision mechanism for edge rolling also includes a controller, which is connected to a vision camera and a distance sensor. When the vision camera identifies a component of the car body-in-white, it sends an identification signal. The identification signal can be received by the controller and fed back to the distance sensor, which detects the distance to the component of the car body-in-white.

[0059] The controller can be a mainstream microcontroller or a processor based on x86, ARM, or RISC-V architecture.

[0060] Example 4

[0061] This embodiment provides a tireless floating edge rolling system. Based on Embodiment 1, Embodiment 2, or Embodiment 3, this embodiment further includes the following settings:

[0062] The tireless membrane floating hemming system also includes a unit valve 7 and a module 8; both the unit valve 7 and the module 8 are connected to the base 2; the unit valve 7 is used to control the inlet and outlet of the air source; the module 8 is an electrical module, serving as a control element.

[0063] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A tireless floating hemming system, characterized in that, The tireless membrane floating edge rolling system includes a base (2), a floating unit (3), and a working unit (4); The base (2) is provided with a floating unit (3) and a working unit (4); The floating unit (3) includes a base (301), a first track slider (302), and a first edge-rolling head assembly; The first track slider (302) is connected to the base (301); The base (301) and the base (2) are connected by a first track slider (302); The first hemming head assembly is connected to the base (301); The working unit (4) includes a connecting plate (401), a second track slider (402), a multiplier cylinder (403), and a second rolling head assembly; The connecting plate (401) is connected to the base (301); The second track slider (402) is connected to the base (301); The second rolling head assembly is connected to the second track slider (402); The multiplier cylinder (403) is connected to the connecting plate (401) and the second track slider (402) respectively.

2. The tireless membrane floating edge rolling system according to claim 1, characterized in that, The multiplier cylinder (403) includes a cylinder body and a piston rod connected to the cylinder body; The cylinder body and the base (301) are connected by a connecting plate (401); The piston rod is connected to the second track slider (402).

3. The tireless membrane floating edge rolling system according to claim 1, characterized in that, The tireless membrane floating hemming system also includes a robot connection flange (1); The robot connecting flange (1) is connected to the base (2), and the robot connecting flange (1) is used to connect the robot.

4. The tireless membrane floating edge rolling system according to claim 1, characterized in that, The tireless membrane floating hemming system also includes a pressure monitoring electric proportional valve (5) and a pressure sensor; The pressure sensor is connected to the second edge-rolling head assembly, and the pressure sensor is used to sense the edge-rolling pressure; The pressure monitoring electro-proportional valve (5) is communicatively connected to the pressure sensor; The pressure monitoring electro-proportional valve (5) is communicatively connected to the multiplier cylinder (5); The pressure monitoring electric proportional valve (5) inputs a preset pressure and controls the movement of the piston rod of the multiplier cylinder (5) according to the electrical signal output by the pressure sensor, thereby driving the movement of the second rolling head assembly and controlling the clamping force of the rolling head.

5. The tireless floating hemming system according to claim 1, characterized in that, The tireless membrane floating hemming system also includes a hemming precision positioning vision mechanism (6); The edge-rolling precision positioning vision mechanism (6) is connected to the base (301); The edge-rolling precision positioning vision mechanism (6) includes a vision camera, a sensing component, and a protective component; The sensing component includes a distance sensor; The protective component includes a protective cover; The vision camera, sensing components, and protective components are all connected to the base (301).

6. The tireless membrane floating hemming system according to claim 1, characterized in that, The floating unit (3) also includes a TPC calibration block (307); The TPC calibration block (307) is connected to the base (301); The floating unit (3) also includes a first limiting structure (308); The first limiting structure (308) is connected to the base (301) to limit the floating position of the floating unit (3). When the upper end of the first track slider (302) abuts against the first limiting structure (308), the highest point of the floating position is reached. When the lower end of the first track slider (302) abuts against the base (2), the lowest point of the floating position is reached.

7. The tireless floating hemming system according to claim 1, characterized in that, The working unit (4) also includes a second limiting structure (404); The second limiting structure (404) is connected to the base (301) and is used to limit the movement position of the working unit (4). When the lower end of the second track slider (402) abuts against the second limiting structure (404), the lowest point of the movement position is reached. When the upper end of the second track slider (402) abuts against the base (301), the highest point of the floating position is reached.

8. The tireless floating edge rolling system according to claim 1, characterized in that, The first edge-rolling head group includes a first edge-rolling head (303), a second edge-rolling head (304), a third edge-rolling head (305), and a fourth edge-rolling head (306); The first rolling head (303), the second rolling head (304), the third rolling head (305), and the fourth rolling head (306) are all connected to the base (301); The second edge-rolling head group includes a fifth edge-rolling head (405) and a sixth edge-rolling head (406); The fifth and sixth rolling heads (405) are both connected to the second track slider (402).

9. A tireless floating hemming system according to claim 8, characterized in that, The second rolled edge (304) is located above the base (301); The first rolling head (303), the third rolling head (305), and the fourth rolling head (306) are respectively disposed on different sides of the base (301); The third hemming head (305) and the fifth hemming head (405) are located on the same side, and the fifth hemming head (405) is located below the third hemming head (305); The first hemming head (303) and the sixth hemming head (406) are located on the same side, and the sixth hemming head (406) is located below the first hemming head (303).

10. A tireless floating edge rolling system according to claim 1, characterized in that, The tireless membrane floating edge rolling system also includes a unit valve (7) and a module (8); Both the individual valve (7) and the module (8) are connected to the base (2); The individual valve (7) is used to control the entry and exit of the gas source; The module (8) is used as an electrical module and serves as a control element.

Images