Flexible support of two-component polystyrene foam gun

Abstract

The utility model relates to the field of robot application, in particular to a two-component polystyrene foam gun flexible support which comprises a fixing plate, a buffering assembly connected with the fixing plate, a connecting assembly connected with the buffering assembly and a polystyrene foam gun connected with the connecting assembly. The buffer assembly comprises a sliding rail installed on the side, away from the robot, of the fixing plate, a stop block arranged at the bottom of the sliding rail and a spring arranged above the connecting assembly, a fixing piece is arranged on the fixing plate, and the fixing piece is used for fixing the spring. The connecting assembly is arranged between the spring and the check block and connected with the sliding rail in a sliding mode. The application has the effect of reducing the possibility of deformation of the custard hole position and the automobile body metal plate caused by rigid contact.

Description

Technical Field

[0001] The present application relates to the field of robot applications, and particularly to a flexible bracket for a two-component foaming glue gun. Background Art

[0002] During automobile production and manufacturing, to improve the sound insulation and noise reduction effect of the vehicle body, the side cavity of the vehicle body is usually filled with room-temperature reactive PU foam filler in the general assembly workshop. By using its rapid foaming and rapid molding at room temperature to seal the bypass cavity, the airflow can be effectively blocked and the wind noise can be suppressed. With the development of society, the manual operation of vehicle body cavity foaming is being replaced by automated operation. By making a special bracket to fix the foaming glue gun on the 6-axis flange of the robot, after the robot is taught the trajectory, under the control of the PLC system, the automation of the vehicle body foaming operation is realized.

[0003] Currently, an integral welded foaming connection assembly is used to fix the foaming glue gun. However, when the robot performs automatic foaming operation on the vehicle body cavity, the position where the vehicle body stops each time is not the same as the position of the taught vehicle body. When the distance between the vehicle body specification hole and the gun head of the foaming glue gun is less than the normal distance, the robot brings the foaming glue gun into contact with the specification hole, which will cause rigid contact with the specification hole, thus easily leading to deformation of the specification hole position and the vehicle body sheet metal. Utility Model Content

[0004] In order to reduce the possibility of deformation of the specification hole position and the vehicle body sheet metal caused by rigid contact, the present application provides a flexible bracket for a two-component foaming glue gun.

[0005] The flexible bracket for a two-component foaming glue gun provided by the present application adopts the following technical solutions:

[0006] A flexible bracket for a two-component foaming glue gun includes a fixing plate, a buffer assembly connected to the fixing plate, a connection assembly connected to the buffer assembly, and a foaming glue gun connected to the connection assembly. The fixing plate is connected to the robot. The buffer assembly includes a slide rail installed on the side of the fixing plate away from the robot, a stopper placed at the bottom of the slide rail, and a spring provided above the connection assembly. A fixing member is provided on the fixing plate for fixing the spring. The connection assembly is placed between the spring and the stopper and is slidably connected to the slide rail.

[0007] By adopting the above technical solutions, when the distance between the gun head of the foaming glue gun and the vehicle body is shorter than the actual distance, at this time, when the robot drives the gun head of the foaming glue gun into the specification hole position, the contact pressure is too high. When the gun head collides with the specification hole, the foaming glue gun moves away from the specification hole under the drive of the connection assembly, and the spring is compressed to provide buffering, thereby reducing the possibility of rigid collision between the gun head of the foaming glue gun and the specification hole resulting in deformation of the hole position and the vehicle body sheet metal.

[0008] Optionally, the connecting component includes a slider slidably connected to the slide rail and a foam bracket connected to the foam gun.

[0009] By adopting the above technical solution, when the gun head impacts the specification hole, the slider slides on the slide rail, and the foam gun moves away from the specification hole under the drive of the slider. When the spring is compressed to the shortest, the buffer extreme point is reached. At this time, the gun head slowly contacts the specification hole, thus achieving the buffering effect.

[0010] Optionally, the foam bracket includes a first plate connected to the slider and a second plate connected to the foam gun. The included angle between the first plate and the second plate is an obtuse angle, and the second plate is arranged parallel to the fixed plate.

[0011] By adopting the above technical solution, the included angle between the first plate and the second plate is set as an obtuse angle, so that a space for placing other components is formed between the first plate and the second plate, and greater connection strength is provided for the whole. The parallel arrangement makes the gun head in direct contact with the specification hole, making the foaming more accurate.

[0012] Optionally, the fixing member includes a mounting plate installed above the slide rail, a screw rod passing through the mounting plate, a guide rod passing through the screw rod, and a locking nut for fixing the screw rod and the guide rod. The end of the guide rod away from the mounting plate is provided with threads and is threadedly connected to the first plate of the foam bracket.

[0013] By adopting the above technical solution, during use, the screw rod is installed on the mounting plate. After the guide rod passes through the screw rod, the spring is sleeved on the guide rod, and then the spring is fixed between the spring adjusting screw rod and the slider by using the threads on the guide rod. By adjusting the screw rod, the tightness of the spring is adjusted, so as to change the buffering distance. After the tightness of the spring is adjusted, the locking nut is tightened for locking.

[0014] Optionally, a connecting flange is connected to the side of the fixed plate away from the mounting and connecting component. The connecting flange is used to fix the fixed plate and the robot.

[0015] By adopting the above technical solution, during installation, the connecting flange is connected to the robot, and then the bolt is passed through the flange for fixing. The setting of the connecting flange increases the connection strength between the fixed plate and the robot.

[0016] Optionally, a vision bracket is also connected to one side of the fixed plate. A binocular vision is fixedly connected to the side of the vision bracket away from the buffer component. The binocular vision is used to scan the specification hole.

[0017] By adopting the above technical solutions, the setting of binocular vision enables the positioning of the gun head to be more accurate; during use, after trajectory teaching, the robot performs foaming automation operations under the control of the PLC program. The specific operations are as follows: The robot carries the foaming gun into the vehicle body, scans the specification holes through binocular vision, the system automatically calculates the hole position deviation, the PLC sends the calculated hole position deviation value to the robot, and the robot automatically adjusts the trajectory to achieve more accurate foaming operations for the specification holes.

[0018] Optionally, the vision bracket is a vision bracket made of aluminum alloy, and fixing holes and mounting holes are provided on the vision bracket.

[0019] By adopting the above technical solutions, using aluminum alloy for the vision bracket can reduce the weight while ensuring the overall strength of the bracket. The prefabricated threaded fixing holes on the vision bracket cooperate with the threaded holes on the fixing plate to achieve accurate positioning of the vision bracket; the prefabricated threaded holes for fixing binocular vision on the vision bracket are used for the positioning and fixing of binocular vision.

[0020] Optionally, a nozzle gasket is installed at the gun head of the foaming gun, and the nozzle gasket is fixed by a set screw.

[0021] By adopting the above technical solutions, since the diameter of the gun head is smaller than the diameter of the specification hole, the foaming material is likely to overflow from the gap between the gun head and the specification hole. The setting of the nozzle gasket causes the nozzle gasket to deform under the contact pressure between the gun head and the specification hole, ensuring close contact between the gun head and the specification hole, eliminating the gap between the gun head and the specification hole, and preventing the foaming material from overflowing.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By setting the fixing plate, buffer assembly, slide rail, spring, connection assembly, slider, and foaming bracket, when the distance between the gun head of the foaming gun and the vehicle body is shorter than the actual distance, at this time, when the robot drives the gun head of the foaming gun into the specification hole position, the contact pressure is too large. When the gun head collides with the specification hole, the foaming gun is driven away from the specification hole by the connection assembly, and the spring is compressed to perform buffering, thereby reducing the possibility of rigid collision between the gun head of the foaming gun and the specification hole, which may cause deformation of the hole position and the body sheet metal.

[0024] 2. By setting the mounting plate, screw rod, guide rod, and locking nut, during use, the screw rod is installed on the mounting plate. After the guide rod passes through the screw rod, the spring is sleeved on the guide rod, and then the spring is fixed between the spring adjustment screw rod and the slider by using the thread on the guide rod. By adjusting the screw rod, the tightness of the spring is adjusted, thereby changing the buffering distance. After the tightness of the spring is adjusted, the locking nut is tightened for locking.

[0025] 3. By setting a nozzle gasket, since the diameter of the gun head is smaller than the diameter of the specification hole, the foaming material easily overflows from the gap between the gun head and the specification hole. The setting of the nozzle gasket causes the nozzle gasket to deform under the contact pressure between the gun head and the specification hole, ensuring close contact between the gun head and the specification hole, eliminating the gap between the gun head and the specification hole, and preventing the foaming material from overflowing. Brief Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the present application.

[0027] Figure 2 is a schematic diagram of the overall structure of another perspective of the present application.

[0028] Description of the Reference Numerals: 1, fixed plate; 2, buffer assembly; 21, slide rail; 22, spring; 3, connection assembly; 31, slider; 32, foaming bracket; 321, first plate; 322, second plate; 4, two-component foaming gun; 5, fixing member; 51, mounting plate; 52, screw; 53, guide rod; 54, locking nut; 6, connecting flange; 7, vision bracket; 8, binocular vision; 9, fixing hole; 10, mounting hole; 11, nozzle gasket; 12, stop block. Detailed Description of the Embodiment

[0029] The following will Figure 1-2 further describe the present application in detail.

[0030] The embodiment of the present application discloses a flexible bracket for a two-component foaming gun 4.

[0031] Referring to Figure 1 , a flexible bracket for a two-component foaming gun 4 includes a fixed plate 1, a buffer assembly 2 connected to the fixed plate 1, a connection assembly 3 connected to the buffer assembly 2, and a two-component foaming gun 4 connected to the connection assembly 3. The fixed plate 1 is connected to a robot. The buffer assembly 2 includes a slide rail 21 installed on the side of the fixed plate 1 away from the robot, a stop block 12 placed at the bottom of the slide rail 21, and a spring 22 disposed above the connection assembly 3. A fixing member 5 is provided on the fixed plate 1, and the fixing member 5 is used to fix the spring 22. The connection assembly 3 is disposed between the spring 22 and the stop block 12 and is slidably connected to the slide rail 21.

[0032] When the distance between the gun head of the two-component foaming gun 4 and the vehicle body is shorter than the actual distance, at this time, the robot drives the gun head of the two-component foaming gun 4 into the specification hole position with too much contact pressure. When the gun head collides with the specification hole, the two-component foaming gun 4 moves away from the specification hole under the drive of the connection assembly 3, and the spring 22 is compressed to perform buffering, thereby reducing the possibility of rigid collision between the gun head of the two-component foaming gun 4 and the specification hole causing deformation of the hole position and the body sheet metal.

[0033] The connecting component 3 includes a slider 31 slidably connected to the slide rail 21 and a foam bracket 32 fixedly connected to the foam gun 4. The foam bracket 32 includes a first plate 321 connected to the slider 31 and a second plate 322 connected to the foam gun 4. The included angle between the first plate 321 and the second plate 322 is an obtuse angle, and the second plate 322 is arranged parallel to the fixed plate 1.

[0034] When the gun head impacts the specification hole, the slider 31 slides on the slide rail 21, and the foam gun 4 moves away from the specification hole under the drive of the slider 31. When the spring 22 is compressed to the shortest, the buffer extreme point is reached. At this time, the gun head slowly contacts the specification hole, thus achieving the buffering effect. The included angle between the first plate 321 and the second plate 322 is set as an obtuse angle, so that a space for placing other components is formed between the first plate 321 and the second plate 322, and greater connection strength is provided for the whole. The parallel setting makes the gun head contact the specification hole linearly, making the foaming more accurate.

[0035] Refer to Figure 1 , the fixing member 5 includes a mounting plate 51 installed above the slide rail 21, a screw rod 52 passing through the mounting plate 51, a guide rod 53 passing through the screw rod 52, and a locking nut 54 for fixing the screw rod 52 and the guide rod 53. The end of the guide rod 53 far from the mounting plate 51 is provided with a thread and is threadedly connected to the first plate 321 of the foam bracket 32.

[0036] During use, the screw rod 52 is installed on the mounting plate 51. After the guide rod 53 passes through the screw rod 52, the spring 22 is sleeved on the guide rod 53, and then the spring 22 is fixed between the spring 22 adjusting screw rod 52 and the slider 31 by using the thread on the guide rod 53. By adjusting the screw rod 52, the tightness of the spring 22 is adjusted, so as to change the buffering distance. After the tightness of the spring 22 is adjusted, the locking nut 54 is tightened for locking.

[0037] On the side of the fixed plate 1 far from the mounting and connecting component 3, a connecting flange 6 is connected. The connecting flange 6 is used to fix the fixed plate 1 and the robot. During installation, the connecting flange 6 is connected to the robot, and then the bolt is passed through the flange for fixing. The setting of the connecting flange 6 increases the connection strength between the fixed plate 1 and the robot.

[0038] Refer to Figure 1 and Figure 2 , on one side of the fixed plate 1, a vision bracket 7 is also connected. On the side of the vision bracket 7 far from the buffer component 2, a binocular vision 8 is fixedly connected. The binocular vision 8 is used to scan the specification hole. The vision bracket 7 is a vision bracket 7 made of aluminum alloy, and the vision bracket 7 is provided with a fixing hole 9 and a mounting hole 10.

[0039] The setting of the binocular vision 8 enables more accurate positioning of the gun head. During use, after the robot is taught the trajectory, under the control of the PLC program, it performs automated foaming operations. The specific operations are as follows: The robot carries the foaming gun 4 into the vehicle body. Through the binocular vision 8, it scans the specification holes, and the system automatically calculates the hole position deviation. The PLC sends the calculated hole position deviation value to the robot, and the robot automatically adjusts the trajectory to achieve more accurate foaming operations for the specification holes. The vision bracket 7 is made of aluminum alloy, which can reduce the weight while ensuring the overall strength of the bracket. The vision bracket 7 is prefabricated with threaded fixing holes 9, which cooperate with the threaded holes on the fixing plate 1 to achieve accurate positioning of the vision bracket 7. The vision bracket 7 is prefabricated with threaded holes for fixing the binocular vision 8 to achieve the positioning and fixing of the binocular vision 8.

[0040] Refer to Figure 2 , a nozzle gasket 11 is installed at the gun head of the foaming gun 4, and the nozzle gasket 11 is fixed by a set screw. Since the diameter of the gun head is smaller than the diameter of the specification hole, the foaming material is likely to overflow from the gap between the gun head and the specification hole. The setting of the nozzle gasket 11 causes the nozzle gasket 11 to deform under the contact pressure between the gun head and the specification hole, ensuring close contact between the gun head and the specification hole, eliminating the gap between the gun head and the specification hole, and preventing the foaming material from overflowing.

[0041] The implementation principle of a flexible bracket for a two-component foaming gun 4 in an embodiment of this application is as follows: During installation, the connecting flange 6 is connected to the robot, and then bolts are inserted into the flange for fixation. The setting of the connecting flange 6 increases the connection strength between the fixing plate 1 and the robot. During use, the screw rod 52 is installed on the mounting plate 51. After the guide rod 53 passes through the screw rod 52, the spring 22 is sleeved on the guide rod 53, and then using the threads on the guide rod 53, the spring 22 is fixed between the spring 22 adjusting screw rod 52 and the slider 31. By adjusting the screw rod 52, the tightness of the spring 22 is adjusted, thereby changing the buffering distance. After the tightness of the spring 22 is adjusted, the lock nut 54 is tightened for locking. During use, after the robot is taught the trajectory, under the control of the PLC program, it performs automated foaming operations. The specific operations are as follows: The robot carries the foaming gun 4 into the vehicle body. Through the binocular vision 8, it scans the specification holes, and the system automatically calculates the hole position deviation. The PLC sends the calculated hole position deviation value to the robot, and the robot automatically adjusts the trajectory to achieve more accurate foaming operations for the specification holes. When the gun head collides with the specification hole, the slider 31 slides on the slide rail 21, and the foaming gun 4 moves away from the specification hole under the drive of the slider 31. When the spring 22 is compressed to the shortest, the buffering extreme point is reached. At this time, the gun head slowly contacts the specification hole, thus achieving the buffering effect.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A flexible bracket for a two-component foaming glue gun (4), characterized in that: The invention comprises a fixed plate (1), a buffer component (2) connected to the fixed plate (1), a connecting component (3) connected to the buffer component (2), and a foam glue gun (4) connected to the connecting component (3); the fixed plate (1) is connected to a robot; the buffer component (2) comprises a slide rail (21) installed on a side of the fixed plate (1) away from the robot, a stopper (12) arranged at the bottom of the slide rail (21), and a spring (22) arranged above the connecting component (3); a fixing member (5) is arranged on the fixed plate (1), and the fixing member (5) is used to fix the spring (22); the connecting component (3) is arranged between the spring (22) and the stopper (12), and is slidably connected to the slide rail (21).

2. A flexible bracket for a two-component foaming glue gun (4) according to claim 1, characterized in that: The connection assembly (3) comprises a sliding block (31) slidably connected to the sliding rail (21) and a foaming bracket (32) connected to the foaming glue gun (4).

3. A flexible bracket for a two-component foaming glue gun (4) according to claim 2, characterized in that: The foaming bracket (32) comprises a first plate (321) connected to the slider (31) and a second plate (322) connected to the foaming glue gun (4); the angle between the first plate (321) and the second plate (322) is an obtuse angle; the second plate (322) is arranged parallel to the fixed plate (1).

4. A flexible bracket for a two-component foaming glue gun (4) according to claim 3, characterized in that: The fixing member (5) comprises a mounting plate (51) mounted above the slide rail (21), a screw rod (52) passing through the mounting plate (51), a guide rod (53) passing through the screw rod (52), and a locking nut (54) for fixing the screw rod (52) and the guide rod (53); the guide rod (53) has a thread on one end away from the mounting plate (51) and is threadedly connected to the first plate (321) of the foaming bracket (32).

5. A flexible bracket for a two-component foaming glue gun (4) according to claim 1, characterized in that: A connecting flange (6) is connected to the side of the fixing plate (1) away from the mounting of the connecting assembly (3), and the connecting flange (6) is used to fix the fixing plate (1) and the robot.

6. A flexible bracket for a two-component foaming glue gun (4) according to claim 1, characterized in that: One side of the fixing plate (1) is also connected to a visual support (7), and a side of the visual support (7) away from the buffer component (2) is fixedly connected to a binocular vision (8), and the binocular vision (8) is used to scan the sample hole.

7. A flexible bracket for a two-component foaming glue gun (4) according to claim 6, characterized in that: The visual bracket (7) is a visual bracket (7) made of an aluminum alloy, and a fixing hole (9) and a mounting hole (10) are provided on the visual bracket (7).

8. A flexible bracket for a two-component foaming glue gun (4) according to claim 1, characterized in that: A gun nozzle gasket (11) is installed at the gun head of the foam glue gun (4), and the gun nozzle gasket (11) is fixed by a set screw.

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