Intelligent rolling head

Abstract

The utility model relates to the technical field of automobile parts processing, and specifically discloses an intelligent rolling head. The intelligent rolling head comprises an inner cylinder and an outer cylinder coaxially arranged inside and outside, the upper end of the inner cylinder extends out of the outer cylinder and is provided with a flange end; the lower end of the outer cylinder is connected with a mounting seat, and the mounting seat is provided with a rolling wheel assembly; the outer cylinder is connected with a sliding assembly axially slidingly matched with the inner cylinder, the sliding assembly comprises a first sliding column axially slidingly arranged in the inner hole of the inner cylinder; a second sliding column above the first sliding column is also axially slidingly arranged in the inner hole, a pressure gauge is arranged between the second sliding column and the first sliding column; the upper end of the inner hole is provided with a plug, and a spring is arranged between the plug and the second sliding column. The intelligent rolling head can realize real-time detection of rolling pressure, has high stability, good rolling quality and long service life.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to an intelligent edge rolling head. Background Technology

[0002] Robotic hemming is a key technology in the assembly process of body-in-white. As a new type of hemming method, it uses a robot to control a hemming tool installed at the end of its arm to roll the edge of the panel, so that the outer panel is folded along the edge of the inner panel, thus achieving the assembly of the two.

[0003] Patent CN205816499U discloses a novel automotive door cover hemming mechanism, including a housing, a roller mounting base, and a first and second roller located on the roller mounting base. An end cap is provided on the top of the housing, and a spring and a guide post are disposed inside the housing. The spring is located between the end cap and the upper end of the guide post, and the lower end of the guide post is connected to the roller mounting base via a transition block located below the housing. The side wall of the transition block is provided with graduations, and a pointer for indicating the graduations is mounted on the housing. However, this hemming mechanism cannot achieve real-time detection of the hemming pressure. Summary of the Invention

[0004] The purpose of this invention is to propose an intelligent hemming head that can detect hemming pressure in real time, and has high stability, good hemming quality, and long service life.

[0005] To achieve this objective, the present invention adopts the following technical solution: An intelligent hemming head includes an inner cylinder and an outer cylinder arranged coaxially. The upper end of the inner cylinder extends out of the outer cylinder and is provided with a flange end. The lower end of the outer cylinder is connected to a mounting base, and a hemming wheel assembly is mounted on the mounting base. The outer cylinder is connected to a sliding assembly that slides axially with the inner cylinder. The sliding assembly includes a first sliding column that is axially slidably disposed in the inner hole of the inner cylinder; a second sliding column that is axially slidably disposed above the first sliding column in the inner hole; a pressure gauge is disposed between the second sliding column and the first sliding column; a plug is disposed at the upper end of the inner hole; and a spring is disposed between the plug and the second sliding column.

[0006] Furthermore, the sliding assembly also includes a connecting rod connected to the first sliding column, with both ends of the connecting rod connected to the outer cylinder; the inner cylinder has a sliding groove that slides up and down with the connecting rod.

[0007] Furthermore, a sliding sleeve is provided between the inner cylinder and the outer cylinder, and the sliding sleeve has a clearance groove for avoiding the connecting rod.

[0008] Furthermore, a gasket is provided between the plug and the spring.

[0009] Furthermore, the end of the second slide column facing the plug is coaxially provided with a first protruding shaft for guiding the extension and retraction of the spring, and / or the end of the plug facing the second slide column is coaxially provided with a second protruding shaft for guiding the extension and retraction of the spring.

[0010] Furthermore, a display screen is installed on the outer cylinder, and the pressure gauge is connected to the display screen via a signal connection.

[0011] Furthermore, a number of pressure scales are arranged circumferentially on the outer side of the upper end of the outer cylinder, and a pointer for indicating the corresponding scale on the pressure scale is connected to the flange end.

[0012] Furthermore, the hemming wheel assembly includes a first hemming wheel rotatably mounted on the mounting base, a rotating shaft rotatably connected to the mounting base, and a second and a third hemming wheel respectively disposed at both ends of the rotating shaft; the central axis of the rotating shaft is perpendicular to the rotation center line of the first hemming wheel.

[0013] Furthermore, a calibration pin is inserted into the lower end face of the mounting base.

[0014] Furthermore, a protective cover is provided on the outer periphery of the calibration needle.

[0015] The beneficial effects of this utility model are as follows: This utility model provides an intelligent hemming head that uses a hemming wheel assembly to hem automotive sheet metal. When the hemming wheel assembly exerts vertical upward pressure on the mounting base, this pressure is transmitted through the mounting base to the outer cylinder, connecting rod, first sliding column, and second sliding column. The hemming pressure data is measured by a pressure gauge located between the first and second sliding columns. Compared with the prior art, this application can achieve real-time detection of hemming pressure. Due to the large contact area between the inner and outer cylinders, this intelligent hemming head has high structural stability and a long service life. In addition, the inclusion of a spring reduces hard contact between the hemming wheel assembly and the automotive sheet metal, improving the hemming quality. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the intelligent hemming head provided by this utility model.

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of point I in the diagram.

[0018] Figure 3 This is a three-dimensional structural diagram of the intelligent edge-rolling head provided by this utility model. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 3 As shown, an intelligent hemming head includes an inner cylinder 1 and an outer cylinder 2 coaxially arranged. The upper end of the inner cylinder 1 extends out of the outer cylinder 2 and is provided with a flange end 11 for connecting to a robot connection end. The lower end of the outer cylinder 2 is connected to a mounting base 3, on which a hemming wheel assembly is mounted. The outer cylinder 2 is connected to a sliding assembly 6 that slides axially with the inner cylinder 1. The sliding assembly 6 includes a first sliding column 61 axially slidably disposed within the inner hole of the inner cylinder 1. A second sliding column 14 is also axially slidably disposed within the inner hole of the inner cylinder 1, located above the first sliding column 61. A pressure gauge 7 is disposed between the second sliding column 14 and the first sliding column 61. A plug 13 is provided at the upper end of the inner hole of the inner cylinder 1, and a spring 8 is disposed between the plug 13 and the second sliding column 14.

[0021] Specifically, such as Figure 1 As shown, the sliding assembly 6 also includes a connecting rod 62 connected to the first sliding column 61, with both ends of the connecting rod 62 connected to the outer cylinder 2; the inner cylinder 1 has a sliding groove 12 that slides up and down with the connecting rod 62. In this embodiment, the connecting rod 62 is set perpendicular to the sliding direction of the first sliding column 61.

[0022] Furthermore, a sliding sleeve 9 is provided between the inner cylinder 1 and the outer cylinder 2. The sliding sleeve 9 is tightly connected to the outer cylinder 2, and a clearance groove is provided on the sliding sleeve 9 to avoid the connecting rod 62.

[0023] In this embodiment, a shim can be placed between the plug 13 and the spring 8 to adjust the preload of the spring 8.

[0024] like Figure 2 As shown, in this embodiment, the end of the second sliding column 14 facing the plug 13 is coaxially provided with a first protruding shaft 141 for guiding the extension and retraction of the spring 8, and the end of the plug 13 facing the second sliding column 14 is coaxially provided with a second protruding shaft 131 for guiding the extension and retraction of the spring 8. In use, the first protruding shaft 141 and the second protruding shaft 131 can prevent the spring 8 from shifting during extension and retraction. Furthermore, the outer end face of the plug 13 is provided with a through hole 132 communicating with the inner hole of the inner cylinder 1, so as to facilitate the timely discharge of gas from the inner hole during the rolling process and avoid affecting the detection accuracy.

[0025] like Figure 3 As shown, in this embodiment, a display screen 10 is installed on the outer cylinder 2, and the pressure gauge 7 is connected to the display screen 10 via a signal connection. During the hemming process, the pressure data measured by the pressure gauge 7 is displayed on the display screen 10.

[0026] like Figure 3As shown in this embodiment, several pressure scales 51 are arranged circumferentially on the outer side of the upper end of the outer cylinder 2, and a pointer 52 is connected to the flange end 11 to indicate the scale on the corresponding pressure scale 51. During the hemming process, the scale indicated by the pointer 52 on the pressure scale 51 can be read. After the read scale is converted into a pressure value, it is compared with the data displayed on the screen, so as to more accurately determine whether there is an abnormal hemming pressure.

[0027] In this embodiment, as Figure 1 and 3 As shown, the edging wheel assembly includes a first edging wheel 41 rotatably mounted on the mounting base 3, a rotating shaft 44 rotatably connected to the mounting base 3, and a second edging wheel 42 and a third edging wheel 43 respectively disposed at both ends of the rotating shaft 44; the central axis of the rotating shaft 44 is perpendicular to the rotation center line of the first edging wheel 41.

[0028] Furthermore, a calibration pin 45 is inserted into the lower end face of the mounting base 3 for calibrating the hemming position before the hemming operation. A protective cover 46 is provided on the outer periphery of the calibration pin 45 to prevent damage to the calibration pin 45 and thus affect the calibration accuracy.

[0029] This invention discloses an intelligent hemming head that, in use, utilizes a hemming wheel assembly to hem automotive sheet metal. When the hemming wheel assembly exerts vertical upward pressure on the mounting base 3, this pressure is transmitted through the mounting base 3 to the outer cylinder 2, connecting rod 62, first sliding column 61, and second sliding column 14. The hemming pressure data is measured by a pressure gauge 7 located between the first sliding column 61 and the second sliding column 14, and finally displayed on a display screen 10. Compared with the prior art, this application achieves real-time detection of hemming pressure; due to the large contact area between the inner cylinder 1 and the outer cylinder 2, the intelligent hemming head has high structural stability and a long service life; in addition, the inclusion of a spring 8 reduces hard contact between the hemming wheel assembly and the automotive sheet metal, improving the hemming quality.

[0030] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An intelligent hemming head, characterized in that, It includes an inner cylinder (1) and an outer cylinder (2) arranged coaxially inside and out. The upper end of the inner cylinder (1) extends out of the outer cylinder (2) and is provided with a flange end (11). The lower end of the outer cylinder (2) is connected to a mounting base (3), and a roller assembly is installed on the mounting base (3). The outer cylinder (2) is connected to a sliding assembly (6) that is axially slidingly engaged with the inner cylinder (1). The sliding assembly (6) includes a first sliding column (61) axially slidingly disposed in the inner hole of the inner cylinder (1). A second sliding column (14) is also axially slidingly disposed above the first sliding column (61) in the inner hole. A pressure gauge (7) is disposed between the second sliding column (14) and the first sliding column (61). A plug (13) is disposed at the upper end of the inner hole. A spring (8) is disposed between the plug (13) and the second sliding column (14).

2. The intelligent hemming head according to claim 1, characterized in that, The sliding assembly (6) further includes a connecting rod (62) connected to the first sliding column (61), and the two ends of the connecting rod (62) are connected to the outer cylinder (2); the inner cylinder (1) is provided with a sliding groove (12) that slides up and down with the connecting rod (62).

3. The intelligent hemming head according to claim 2, characterized in that, A sliding sleeve (9) is provided between the inner cylinder (1) and the outer cylinder (2), and the sliding sleeve (9) has a clearance groove for avoiding the connecting rod (62).

4. The intelligent hemming head according to claim 1, characterized in that, A gasket is provided between the plug (13) and the spring (8).

5. The intelligent hemming head according to claim 1, characterized in that, The end of the second slide bar (14) facing the plug (13) is coaxially provided with a first protruding shaft (141) for guiding the extension and retraction of the spring (8), and / or the end of the plug (13) facing the second slide bar (14) is coaxially provided with a second protruding shaft (131) for guiding the extension and retraction of the spring (8).

6. The intelligent hemming head according to claim 1, characterized in that, A display screen (10) is installed on the outer cylinder (2), and the pressure gauge (7) is connected to the display screen (10) via signal.

7. The intelligent hemming head according to claim 1, characterized in that, The outer cylinder (2) has several pressure scales (51) spaced circumferentially on the outer side of its upper end, and the flange end (11) is connected to a pointer (52) for indicating the scale on the corresponding pressure scale (51).

8. The intelligent hemming head according to claim 1, characterized in that, The edging wheel assembly includes a first edging wheel (41) rotatably mounted on the mounting base (3), a rotating shaft (44) rotatably connected to the mounting base (3), and a second edging wheel (42) and a third edging wheel (43) respectively disposed at both ends of the rotating shaft (44); the central axis of the rotating shaft (44) is perpendicular to the rotation center line of the first edging wheel (41).

9. A smart hemming head according to claim 1 or 8, characterized in that, A calibration pin (45) is inserted into the lower end face of the mounting base (3).

10. The intelligent hemming head according to claim 9, characterized in that, The calibration needle (45) is provided with a protective cover (46) on its outer periphery.

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