Door cover edge rolling tool

Abstract

The utility model provides a door cover binding tool which comprises a roller, a roller installation assembly, a TCP and a floating control assembly, the roller and the TCP are installed on the roller installation assembly, and the floating control assembly comprises a fixing device, a spring adjusting device, a reference block detection device and a manual observation device. The beneficial effects of the utility model are that the roller integrated design is adopted, the roller can be conveniently and rapidly replaced in the later period, the TCP and the protective cover are installed on the installation seat, the protective cover is used for protecting the safety of personnel, the TCP protective measure is adopted to play a role in safety protection, the initial state of the spring is adjusted by adjusting the positions of the two adjusting blocks, the factory state can be set, and the production efficiency is improved. And initial pressure setting of metal plates made of different materials in the later period is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of hemming tools, and in particular to a door cover hemming tool. Background Technology

[0002] Because automotive door panels and other exterior coverings have very high aesthetic requirements, door panel assemblies are typically not welded during production. Instead, they are fixed by folded edges between the inner and outer panels. Therefore, current automotive door panel manufacturing usually uses an edge-wrapping process. To adapt to the multi-product production lines of modern automotive manufacturers, achieve flexibility in door panel assembly production, save production line space, reduce debugging and manufacturing costs, improve edge-wrapping quality, and increase the automation of the entire manufacturing process, the use of robotic edge rolling has become the development direction for door panel edge-wrapping production and is gradually replacing presses and edge-wrapping dies in production.

[0003] Currently, there are four similar inventions on the market. These inventions all have something in common: they all use springs for linear floating to achieve pressure self-adaptation during the rolling process. However, during long-term rolling, the lifespan of the springs is worn out, leading to a decline in product quality. These inventions also have a common drawback: they cannot monitor the rolling process in real time and require a lot of time for debugging, which affects product quality and project cycle. Utility Model Content

[0004] To overcome the problems existing in the prior art, this utility model provides a door cover hemming tool.

[0005] This utility model discloses a door cover rolling tool, including a roller, a roller mounting assembly, a TCP (roller control unit), and a floating control assembly. The roller and the TCP are mounted on the roller mounting assembly, and the floating control assembly includes a fixing device, a spring adjustment device, a reference block detection device, and a manual observation device.

[0006] Based on this, the roller mounting assembly includes a roller mounting block and a mounting base, the roller is mounted on the roller mounting block, the roller mounting block is mounted on the mounting base, and a protective cover is mounted on the mounting base.

[0007] Based on this, the TCP is installed on the installation pod.

[0008] Based on this, the fixing device includes a bushing, a connecting block, a floating mounting base, a flat key, and a spline sleeve. The flat key is installed on the spline sleeve, the spline sleeve is installed inside the floating mounting base, the connecting block is installed at the bottom of the floating mounting base, and the bushing is installed at the lower end of the connecting block.

[0009] Based on this, the spring adjustment device includes a second flat key, a splined shaft, an adjusting block, a first pointer, a spring, a force transmission shaft, a second bushing, a strain pressure sensor, a mounting plate, and a reference mounting flange. The adjusting block is installed on the splined shaft, and the splined shaft is inserted into the splined sleeve from the upper part of the floating mounting base. The two second flat keys are installed on the lower end of the splined shaft. The spring is inserted into the upper end of the splined shaft and contacts the upper end of the adjusting block. The second bushing is installed in the upper hole of the floating mounting base. The force transmission shaft passes through the hole of the second bushing and contacts the upper end of the spring. The strain pressure sensor is installed on the lower end of the mounting plate. The upper surface of the mounting plate is installed on the lower end face of the reference mounting flange. The lower end face of the reference mounting flange is connected to the upper end face of the floating mounting base. The first pointer is installed inside the floating mounting base.

[0010] Based on this, the reference block detection device includes a reference block, a displacement sensor, and a connecting seat. The reference block is installed on the side of the spline shaft, the displacement sensor is installed on the connecting seat, and the connecting seat is installed on the side of the floating mounting base.

[0011] Based on this, a cover plate and an oil injection head are installed on the side of the floating mounting base.

[0012] Based on this, the manual observation device includes a mounting flange, connecting bolts, a scale, and a second pointer. The mounting flange is installed on the lower end of the splined shaft, and the lower end face of the mounting flange is connected to the upper end face of the mounting base. The connecting bolts fix the mounting base to the splined shaft. The scale is installed on both sides of the mounting flange, and the second pointer is installed on both sides of the connecting block.

[0013] Based on this, a raised platform is installed on the upper end face of the reference mounting flange, and the upper end face of the raised platform is fixed to the lower end face of the robot mounting flange.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The roller is installed on the roller mounting block, and the roller mounting block is directly installed on the mounting base. The roller is integrated with the design, which makes it easy to quickly replace the roller later. The TCP and the protective cover are installed on the mounting base. The protective cover is used to protect the safety of personnel. The TCP protection measures play a role in safety protection. By adjusting the position of the two adjustment blocks, the initial state of the spring can be adjusted, which can set the factory state and facilitate the initial pressure setting of sheet metal of different materials later.

[0016] (2) During the hemming process, the spring is compressed by the linear motion of the spline shaft, and the force is transmitted to the strain pressure sensor through the force transmission shaft. The strain pressure sensor transmits a signal to confirm the pressure of the hemming tool during the hemming process. The displacement of the reference block is driven by the spline shaft, and then detected by the displacement sensor. The displacement of the hemming tool during the hemming process can be confirmed. Combining the relationship between the pressure and the displacement, the monitoring of product quality during the hemming process can be confirmed.

[0017] (3) During the process of the robot driving the rolling tool to roll the product, the strain pressure sensor collects the rolling pressure and outputs a signal, while the displacement sensor provides a digital signal of the displacement of the roller in the rolling tool. The signal output by the strain pressure sensor is usually very weak and must be amplified and processed. A pressure signal transmitter is used to transmit the signal to the analog input channel of the data acquisition module. The start and end digital signals are output from the PLC to the switch input channel of the data acquisition module. These signals are then photoelectrically isolated before entering the data acquisition module. Another switch signal input to the monitoring system from the PLC is the origin calibration signal, used to ensure the accuracy of the displacement signal. The digital output channel is used to output information on whether the rolling quality is qualified and whether the pressure exceeds the limit to the PLC. The data acquisition module performs digital-to-analog conversion, filtering, and interference removal on the received digital and analog signals before transmitting the signals to the data processing module.

[0018] (4) The “pressure-displacement-time” curve is displayed on the screen to determine the result. The working process of the roller pressing can be understood very intuitively. The time corresponding to the pressure and displacement must be consistent in order to ensure that the quality of the roller pressing can be monitored in real time. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the door cover rolling tool of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the door cover rolling tool of this utility model;

[0021] Figure 3 yes Figure 2 AA section view;

[0022] Figure 4 yes Figure 1 Schematic diagram of the structure at point B;

[0023] Figure 5 yes Figure 2 Schematic diagram of the structure at point C;

[0024] Figure 6 This is a system diagram of this utility model;

[0025] Figure 7It is a graph showing the relationship between pressure, displacement, and time;

[0026] In the diagram: 1. Roller, 2. Roller mounting assembly, 201. Roller mounting block, 202. Mounting seat, 203. Protective cover, 3. TCP, 4. Floating control assembly, 401. Mounting flange, 402. Key II, 403. Connecting bolt, 404. Spline shaft, 405. Bushing I, 406. Connecting block, 407. Floating mounting base, 408. Oil injection head, 409. Reference block, 410. Adjusting block, 411. Pointer I, 412. Spring, 413. Connecting seat, 414. Displacement sensor, 415. Force transmission shaft, 416. Bushing II, 417. Strain pressure sensor, 418. Mounting plate, 419. Reference mounting flange, 420. Key I, 421. Spline sleeve, 422. Cover plate, 423. Pointer II, 5. Robot mounting flange, 6. Elevation platform. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0028] This utility model discloses a door cover hemming tool, referenced Figure 1 , Figure 2 and Figure 3 Roller 1 is installed on roller mounting block 201, and roller mounting block 201 is directly installed on mounting base 202, which can ensure quick installation and removal of roller 1, and facilitate quick replacement of roller 1 on site. TCP3 and protective cover 203 are installed on mounting base 202. Protective cover 203 is used to protect personnel safety, and TCP3 is used to correct the origin position of robot and edge rolling tool.

[0029] refer to Figures 2-5Install the first flat key 420 onto the spline sleeve 421, then install the spline sleeve 421 into the floating mounting base 407. Next, install the connecting block 406 onto the bottom of the floating mounting base 407. Install the first bushing 405 onto the lower end of the connecting block 406. This ensures that the spline sleeve 421 is fixed to the floating mounting base 407. Install the two adjusting blocks 410 onto the spline shaft 404. Insert the spline shaft 404 from the upper part of the floating mounting base 407 into the spline sleeve 421. Then, install the second two flat keys 402 onto the lower end of the spline shaft 404. Finally, insert the spring 412. The upper end of the splined shaft 404 is inserted into the shaft and contacts the upper end of the adjusting block 410. The bushing 416 is installed into the upper hole of the floating mounting base 407. The force transmission shaft 415 passes through the hole of the bushing 416 and contacts the upper end of the spring 412. The strain pressure sensor 417 is installed on the lower end of the mounting plate 418. The upper end face of the mounting plate 418 is installed on the lower end face of the reference mounting flange 419. The lower end face of the reference mounting flange 419 is connected to the upper end face of the floating mounting base 407. The pointer 411 is installed inside the floating mounting base 407 to facilitate the identification of the two adjusting blocks. In summary, the initial state of the spring can be adjusted by adjusting the positions of the two adjusting blocks 410, thus setting the factory default state. The reference block 409 is installed on the side of the splined shaft 404, and the displacement sensor 414 is installed on the connecting seat 413, which is then installed on the side of the floating mounting base 407. Thus, the displacement sensor 414 can be used to detect the position of the reference block 409. The cover plate 422 is installed on the side of the floating mounting base 407 to protect the displacement sensor 414 from damage due to impact. The oil filler head 408 is installed... The side of the floating mounting base 407 is used to lubricate the spline shaft 404 and the spline sleeve 421. The mounting flange 401 is installed on the lower end of the spline shaft 404, and the lower end face of the mounting flange 401 is connected to the upper end face of the mounting seat 202. The mounting seat 202 and the spline shaft 404 are then fixed by the connecting bolts 403. The scale 424 is then installed on both sides of the mounting flange 401, and the pointer 423 is installed on both sides of the connecting block 406, ensuring that the pointer 423 points to the scale of the scale 424. In summary, this is used to facilitate manual observation during the debugging process.

[0030] Its working principle is as follows: During the hemming process, the splined shaft 404 compresses the spring 412 through linear motion, and then transmits the force to the strain pressure sensor 417 through the force transmission shaft 415. The strain pressure sensor 417 transmits a signal to confirm the pressure magnitude of the hemming tool during the hemming process. The splined shaft 404 drives the reference block 409 to move, and the displacement sensor 414 detects this displacement, confirming the amount of displacement of the hemming tool during the hemming process. By combining the relationship between pressure magnitude and displacement, product quality can be monitored during the hemming process.

[0031] Install the lower end face of the raised platform 6 onto the upper end face of the reference mounting flange 419. The raised platform 6 can be replaced with a gun changing disc, which allows for quick switching of the rolling tool. Then, combine the lower end face of the robot mounting flange 5 with the upper end face of the raised platform 6, and connect the robot to the robot mounting flange 5.

[0032] refer to Figure 6 During the process of the robot driving the hemming tool to roll products, the strain pressure sensor collects the rolling pressure and outputs a signal, while the displacement sensor provides a digital signal of the displacement of the rollers in the hemming tool. The signal output by the strain pressure sensor is usually very weak and must be amplified and processed. A pressure signal transmitter is used to transmit the signal to the analog input channel of the data acquisition module. The start and end digital signals are output from the PLC to the switch input channel of the data acquisition module. These signals are then photoelectrically isolated before entering the data acquisition module. Another switch signal input to the PLC monitoring system is the origin calibration signal, used to ensure the accuracy of the displacement signal. The digital output channel is used to output information on whether the rolling quality is qualified and whether the pressure exceeds the limit to the PLC. The data acquisition module performs digital-to-analog conversion, filtering, and interference removal on the received digital and analog signals before transmitting the signals to the data processing module.

[0033] refer to Figure 7 The display screen shows a "pressure-displacement-time" curve to determine the result, which can provide a very intuitive understanding of the roller pressing process. The time corresponding to pressure and displacement must be consistent to ensure that the quality of roller pressing can be monitored in real time.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", "pad", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the terms in this utility model according to the specific circumstances.

[0036] The preferred embodiments of the present invention have been illustrated and described. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through teachings or techniques or knowledge in related fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A door cover hemming tool, characterized in that: It includes a roller (1), a roller mounting assembly (2), a TCP (3) and a floating control assembly (4). The roller (1) and the TCP (3) are mounted on the roller mounting assembly (2). The floating control assembly (4) includes a fixing device, a spring adjustment device, a reference block detection device and a manual observation device.

2. The door cover hemming tool according to claim 1, characterized in that: The roller mounting assembly (2) includes a roller mounting block (201) and a mounting base (202). The roller (1) is mounted on the roller mounting block (201), the roller mounting block (201) is mounted on the mounting base (202), and a protective cover (203) is mounted on the mounting base (202).

3. The door cover hemming tool according to claim 2, characterized in that: The TCP (3) is installed on the mounting base (202).

4. The door cover hemming tool according to claim 3, characterized in that: The fixing device includes a bushing (405), a connecting block (406), a floating mounting base (407), a flat key (420), and a spline sleeve (421). The flat key (420) is installed on the spline sleeve (421), the spline sleeve (421) is installed inside the floating mounting base (407), the connecting block (406) is installed at the bottom of the floating mounting base (407), and the bushing (405) is installed at the lower end of the connecting block (406).

5. The door cover hemming tool according to claim 4, characterized in that: The spring adjusting device includes a second flat key (402), a splined shaft (404), an adjusting block (410), a pointer (411), a spring (412), a force transmission shaft (415), a second bushing (416), a strain pressure sensor (417), a mounting plate (418), and a reference mounting flange (419). The adjusting block (410) is installed on the splined shaft (404). The splined shaft (404) is inserted into the splined sleeve (421) from the upper part of the floating mounting base (407). The two second flat keys (402) are installed on the lower end shaft of the splined shaft (404). The spring (412) is inserted into the splined shaft. The upper end of the 404) shaft is in contact with the upper end of the adjusting block (410). The bushing two (416) is installed in the upper end hole of the floating mounting base (407). The force transmission shaft (415) passes through the hole of the bushing two (416) and is in contact with the upper end of the spring (412). The strain pressure sensor (417) is installed on the lower end of the mounting plate (418). The upper end face of the mounting plate (418) is installed on the lower end face of the reference mounting flange (419). The lower end face of the reference mounting flange (419) is connected to the upper end face of the floating mounting base (407). The pointer one (411) is installed inside the floating mounting base (407).

6. The door cover hemming tool according to claim 5, characterized in that: The reference block detection device includes a reference block (409), a displacement sensor (414), and a connecting seat (413). The reference block (409) is mounted on the side of the spline shaft (404), the displacement sensor (414) is mounted on the connecting seat (413), and the connecting seat (413) is mounted on the side of the floating mounting base (407).

7. The door cover hemming tool according to claim 6, characterized in that: The floating mounting base (407) has a cover plate (422) and an oil injection head (408) mounted on its side.

8. The door cover hemming tool according to claim 7, characterized in that: The manual observation device includes a mounting flange (401), connecting bolts (403), a scale (424), and a pointer (423). The mounting flange (401) is mounted on the lower end of the splined shaft (404). The lower end face of the mounting flange (401) is connected to the upper end face of the mounting base (202). The connecting bolts (403) fix the mounting base (202) to the splined shaft (404). The scale (424) is mounted on both sides of the mounting flange (401), and the pointer (423) is mounted on both sides of the connecting block (406).

9. The door cover hemming tool according to claim 5, characterized in that: A raised platform (6) is installed on the upper end face of the reference mounting flange (419), and the upper end face of the raised platform (6) is fixed to the lower end face of the robot mounting flange (5).

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