Reverse pressure detection mechanism for automobile edge rolling

Abstract

The utility model belongs to the technical field of automobile production and manufacturing equipment, and particularly relates to a reverse pressure detection mechanism for automobile binding, which comprises an upper end cover, a support, a spring, an upper baffle plate, a lower baffle plate, a main shaft, a pressure sensor assembly and a binding head main body, one end of the main shaft penetrates through a through hole in the middle of the support and extends into the cavity, a pressure sensor, a lower baffle, a spring and an upper baffle are sequentially installed on the main shaft located in the cavity and are fastened through bolts, the other end of the main shaft is in threaded connection with the edge rolling head body, and the edge rolling head is installed on the edge rolling head body. According to the utility model, the tensile force received by the binding can be measured through the pressure sensor, so that the pressure of the binding head can be conveniently adjusted, and the occurrence of crimping and bulging is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of automobile manufacturing equipment, specifically relating to a mechanism for detecting reverse pressure on automobile hemming. Background Technology

[0002] In the welding workshop, a robotic arm drives rollers to act on the sheet metal, using the metal's plastic deformation to roll and fold along the fold line. Through multiple rolls (2-4 times) adjusted by the roller's feed rate and angle, the inner and outer panels are pressed together. The folding adhesive then secures the inner and outer panels tightly, achieving the desired assembly. This process can replace traditional pressing and folding and is widely used in the manufacturing of exterior body panels. However, because it cannot detect the stress on the sheet metal, some curling and bulging may occur. Utility Model Content

[0003] The purpose of this invention is to provide a reverse pressure detection mechanism for automotive hemming to solve the problems existing in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a reverse pressure detection mechanism for automotive hemming, comprising an upper end cover, a support, a spring, an upper baffle, a lower baffle, a main shaft, a pressure sensor assembly, and a hemming head body. The upper end cover is fixedly connected to the support, which has a cavity. One end of the main shaft extends through a through hole in the middle of the support into the cavity. A pressure sensor assembly, a lower baffle, a spring, and an upper baffle are mounted on the main shaft located in the cavity and secured with bolts. The other end of the main shaft is threadedly connected to the hemming head body, and the hemming head is mounted on the hemming head body.

[0005] Preferably, the spring sleeve has a bushing.

[0006] Preferably, the bushing is fitted with a dust cover.

[0007] Preferably, a cover plate is provided on one side of the support, which seals the side of the cavity.

[0008] The beneficial effects of this invention are: this invention can measure the magnitude of the tension received by the hemming edge through a pressure sensor, thereby facilitating the adjustment of the pressure of the hemming head and reducing the occurrence of curling and bulging edges. Attached Figure Description

[0009] Figure 1 This is a front view of the positioning device;

[0010] Figure 2 This is a side view of the positioning device;

[0011] Figure 3This is a top view of the positioning device;

[0012] Figure 4 This is an isometric view of the positioning device;

[0013] Figure 5 This is a diagram of the internal structure of this positioning device. Detailed Implementation

[0014] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0015] like Figure 1 As shown, a reverse pressure detection mechanism for automotive hemming includes an upper cover 1, a support 2, a dust cover 3, a spring 4, an upper baffle 5, a bushing 6, a lower baffle 7, a main shaft 8, a pressure sensor assembly 9, a hemming head body 10, a hemming head 11, and a cover plate 12. The upper cover is fixedly connected to the support, which has a cavity. One end of the main shaft extends through a through hole in the middle of the support into the cavity. A pressure sensor assembly, the lower baffle, the spring, and the upper baffle are mounted on the main shaft within the cavity and secured with bolts. The other end of the main shaft is threadedly connected to the hemming head body, and the hemming head is mounted on the hemming head body. A bushing is fitted over the spring. A dust cover is fitted over the bushing.

[0016] Step 1: First connect the spindle 8 to the hemming head body 10.

[0017] Step 2: Pass the spindle from step 1 through the hollow support 2 and use the locating pin to position it to prevent rotation.

[0018] Step 3: Insert the pressure sensor assembly 9, lower baffle 7, spring 4, and upper baffle 5 into the spindle in the order of step 2.

[0019] Step 4: Place the bushing 6 and dust cover 3 into the structure from step 3.

[0020] The final step is to install the upper cover 1 and cover plate 13 on the fourth step and tighten them.

[0021] Working process: Assemble the device according to the above technical solution, and connect the upper cover 1 to the robot. Open the dust cover 13 and connect the display device in the pressure sensor assembly 9. When the roller head 11 performs the edge rolling operation on the pre-rolled plate on the side wheel hub wrapping film, the edge rolling head 11 applies pressure to the film, and conversely, the force applied by the edge rolling head to the main shaft 8 is a tension force. The main shaft 8 will then transmit the tension force to the spring 4, and the pressure of the spring 4 will then be transmitted to the pressure sensor assembly 9, which facilitates real-time detection of the magnitude of the edge rolling pressure received by the edge rolling head.

[0022] The working principle is as follows: when the rolling head performs the rolling operation on the pre-rolled plate, the rolling head applies a pulling force to the spindle, and the spindle will transmit the pulling force to the spring. Since the forces are mutual, the pressure sensor can measure the magnitude of the pulling force received by the rolling head.

[0023] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A mechanism for detecting reverse pressure on automotive hemming, characterized in that: The device includes an upper end cover, a support, a spring, an upper baffle, a lower baffle, a main shaft, a pressure sensor assembly, and a edging head body. The upper end cover is fixedly connected to the support, which has a cavity. One end of the main shaft extends through a through hole in the middle of the support into the cavity. The pressure sensor assembly, lower baffle, spring, and upper baffle are mounted on the main shaft in the cavity and secured with bolts. The other end of the main shaft is threadedly connected to the edging head body, and the edging head is mounted on the edging head body.

2. The automotive hemming reverse pressure detection mechanism according to claim 1, characterized in that: The spring sleeve has a bushing.

3. The automotive hemming reverse pressure detection mechanism according to claim 2, characterized in that: The bushing is fitted with a dust cover.

4. The automotive hemming reverse pressure detection mechanism according to claim 1, characterized in that: The support has a cover plate on one side, which seals the side of the cavity.

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