Gluing machine for automobile sheet metal parts

Abstract

The invention provides a gluing machine for automobile sheet metal fittings, which comprises a glue supply device, a glue supply pipe and a gluing head, the gluing head comprises a main body, one end of the main body is provided with a glue outlet, the glue outlet is provided with a transverse spacing control mechanism and a vertical spacing control mechanism in a staggered manner, the transverse spacing control mechanism comprises a transverse baffle, and the transverse baffle is provided with a vertical baffle. The transverse baffle horizontally moves to change the aperture of the glue outlet, the vertical spacing control mechanism comprises a vertical baffle, the vertical baffle vertically moves to change the aperture of the glue outlet, a glue feeding mechanism is arranged at one end of the main body, the glue feeding mechanism comprises a film belt, a cavity is formed in the main body, a piston is arranged in the cavity in a matched mode, and the film belt is arranged in the cavity. A pipe fitting is fixedly connected to the rear end of the piston, a magnetic ring is fixedly connected to the side wall of the pipe fitting, coils are arranged on the two sides of the magnetic ring, and the coils are fixedly connected with the body. The glue discharging device has the advantage of stable glue discharging.

Description

Technical Field

[0001] The invention relates to the technical field of glue coating machines, in particular to a glue coating machine for automobile sheet metal accessories. Background Art

[0002] In automobile production, if the windshield is installed, it is necessary to apply glue to the sheet metal. Usually, a circle of glue is applied on the sheet metal along the edge of the windshield, and then the windshield is installed on the sheet metal. The windshield is bonded and sealed by glue. It should be noted that the glue used to bond the windshield is of high viscosity.

[0003] In today's automobile production, glue coating machines are basically divided into automated and semi-automated methods. However, in the existing one-time glue application, a glue head is installed at the front end of the glue gun, but the aperture of the glue port is fixed. When applying glue, the amount of glue can only be controlled by adjusting the pumping pressure, and the cross-sectional shape / area of ​​the glue cannot be changed. When applying glue to sheet metal parts, the amount of glue needs to be controlled at different positions, otherwise it is easy to overflow glue when installing workpieces such as glass, or the overflow glue problem needs to be considered during design, which increases the difficulty of design. Summary of the invention

[0004] In order to solve the above problems, the present invention discloses a glue coating machine for automobile sheet metal parts, including a glue supply device, a glue supply hose and a glue head, the two ends of the glue supply hose are respectively connected to the glue supply device and the glue head, the glue head includes a main body, one end of the main body is provided with a glue outlet, the glue outlet is staggered with a horizontal spacing control mechanism and a vertical spacing control mechanism, the horizontal spacing control mechanism includes a horizontal baffle, and the horizontal baffle moves horizontally to change the aperture of the glue outlet, and the vertical spacing control mechanism includes a vertical baffle, and the vertical baffle moves vertically to change the aperture of the glue outlet. By changing the positions of the vertical baffle and the horizontal baffle, the final aperture of the glue outlet is adjusted, thereby controlling the glue output amount, and changing it according to the glue application process of the sheet metal parts.

[0005] One end of the main body is provided with a glue feeding mechanism, which includes a film tape, and the film tape is located just below the glue outlet. The glue is transferred to the sheet metal part through the film tape, rather than directly applying the glue to the sheet metal part.

[0006] The main body is provided with a chamber inside, and a piston is provided in the chamber. The rear end of the piston is fixedly connected with a pipe fitting, and a rubber hose is connected thereto. The side wall of the pipe fitting is fixedly connected with a magnetic ring. Coils are provided on both sides of the magnetic ring, and the coils are fixedly connected to the main body. When the coil is energized, a magnetic field is generated, and the magnetic ring acts to fine-tune the position of the piston, thereby controlling the pressure of the glue delivery and ensuring the stability of the glue output.

[0007] Preferably, the lateral spacing control mechanism further comprises a first motor and a first screw arranged horizontally, one end of the first screw being fixedly connected to an output end of the first motor, and the first screw being threadedly connected to a protruding protrusion arranged on the back of the lateral baffle. When the first motor is started, the first screw is driven, and the lateral baffle moves along the axial direction of the first screw.

[0008] Preferably, the vertical spacing control mechanism further comprises a horizontally arranged movable plate, a second screw and a second motor, one end of the second screw is fixedly connected to the output end of the second motor, the second screw is threadedly connected to a protrusion arranged on the back of the movable plate, an inclined hole is arranged on the movable plate, a convex rod is fixedly connected to the upper side wall of the vertical baffle, and the convex rod is slidably fitted in the inclined hole. The second motor and the second screw are started to drive the movable plate to move along the axial direction of the second screw, and at the same time, the convex rod is fitted in the inclined hole, and the movement of the vertical baffle is realized during the movement of the movable plate.

[0009] Preferably, the glue feeding mechanism further includes a first side plate and a second side plate, and a wedge block, a guide rod and a third motor are arranged between the first side plate and the second side plate, and the film tape is sleeved on the wedge block, the guide rod and the third motor, and the guide rod is located below the glue outlet. The wedge block is located at the front end of the glue feeding mechanism, and the front end of the wedge block is relatively sharp, which is conducive to the separation of glue and the film tape. The second motor is used to drive the film tape, and the working principle of the second motor is consistent with that of the hub motor.

[0010] Preferably, a support rod is fixedly connected to the middle of the upper end of the second side plate, and image sensors are respectively arranged at the lower and upper parts of the support rod. The image sensors are arranged in vertical direction and horizontal direction, that is, the shape of the glue is calculated by image recognition, and then feedback is fine-tuned to ensure the quality of the glue.

[0011] Preferably, the glue feeding mechanism includes a tensioning mechanism, the tensioning mechanism includes a cross bar, and the cross bar is interspersed and arranged on the second side plate; One end of the crossbar is fixedly connected to the swing arm, and the other end of the swing arm is rotatably connected to the tensioning roller, and the tensioning roller presses upward against the film belt, and the other end of the crossbar is provided with a torsion spring for keeping the tensioning roller press upward against the film belt, and the outer side of the torsion spring is covered with a cover. The tensioning mechanism is used to ensure the tensioning force of the film belt.

[0012] The beneficial effects of the present invention are as follows: 1. It is equipped with a horizontal spacing adjustment mechanism and a vertical spacing adjustment mechanism, which can change the glue output of the glue outlet in real time, so as to meet the gluing needs in one gluing operation, and is also suitable for the gluing needs of different types of sheet metal parts.

[0013] 2. A film belt is provided, etc., so that the glue delivered from the glue outlet will not fall directly on the sheet metal parts. The image sensor provided on the glue delivery mechanism can recognize the shape of the glue by image, which is convenient for further adjustment of the glue delivery situation and ensures the stability of the glue delivery.

[0014] 3. The piston, coil and magnetic ring are set to fine-tune the pressure in the chamber to ensure stable glue discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the glue supply device of the present invention; Figure 2 It is a three-dimensional schematic diagram of the glue applying head of the present invention; Figure 3 This is a schematic diagram of the internal piston structure of the glue head of the present invention; Figure 4 is a schematic diagram of a lateral spacing control mechanism of the present invention; Figure 5 It is a schematic diagram of a first viewing angle of the vertical spacing control mechanism of the present invention; Figure 6 A second viewing angle schematic diagram of the vertical spacing control mechanism of the present invention; Figure 7 It is a structural schematic diagram of the glue feeding mechanism of the present invention; Figure 8 It is a three-dimensional schematic diagram of the tensioning mechanism of the present invention; List of reference numerals: 1. Glue supply device; 2. Glue supply hose; 3. Glue head; 4. Cable; 11. Bracket; 12. Stirring motor; 13. Convex shell; 14. Barrel; 31. Glue feeding mechanism; 32. Horizontal spacing control mechanism; 33. Glue outlet; 34. Vertical spacing control mechanism; 35. Cover plate; 36. Main body; 37. Connecting hole; 38. Piston; 39. Magnetic ring; 310. Coil; 311, first side plate; 312, wedge block; 313, fixing nut; 314, film strip; 315, second side plate; 316, image sensor; 317, support rod; 318, guide rod; 319, tensioning mechanism; 3110, third motor; 321, transverse baffle; 322, first screw rod; 323, first motor; 341, movable plate; 342, inclined hole; 343, vertical baffle; 344, second screw rod; 345, second motor; 346, convex rod; 3191. Tensioning roller; 3192. Swing arm; 3193. Torsion spring; 3194. Sealing cap. DETAILED DESCRIPTION

[0016] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0017] Combination Figure 1 and Figure 2 As shown, a glue coating machine for automobile sheet metal parts includes a glue supply device 1, a glue supply hose 2 and a glue head 3, and the two ends of the glue supply hose 2 are respectively connected to the glue supply device 1 and the glue head 3. That is, the glue supply device 1 transports glue to the glue head 3 through the glue supply hose 2.

[0018] Furthermore, the glue supply device 1 includes a bracket 11, the upper end of the bracket 11 is fixedly connected to a cylindrical barrel 14, and the upper end of the barrel 14 is provided with an upper cover, the lower end of the barrel 14 is fixedly connected to a stirring motor 12, and a stirring rod is provided inside the barrel 14, and the output end of the stirring motor 12 is fixedly connected to the stirring rod. A convex shell 13 is provided at the lower part of the barrel 14, and a related electric control module and a glue supply pump are provided inside the convex shell 13, and one end of the glue supply hose 2 is fixedly connected to the output end of the pump, and the upper surface of the convex shell 13 is provided with related interfaces, such as a power supply interface, a communication interface, etc.

[0019] The glue head 3 includes a main body 36, which is a cuboid mechanism as a whole. A glue outlet 33 is arranged at one end of the main body 36, and the shape of the glue outlet 33 is rectangular. A horizontal spacing control mechanism 32 and a vertical spacing control mechanism 34 are staggered at the glue outlet 33. The horizontal spacing control mechanism 32 includes a horizontal baffle 321, and the horizontal baffle 321 moves horizontally to change the aperture of the glue outlet 33. The vertical spacing control mechanism 34 includes a vertical baffle 343, and the vertical baffle 343 moves vertically to change the aperture of the glue outlet 33. With the movement of the horizontal baffle 321 and the vertical baffle 343, the length and width of the glue outlet 33 change, which is beneficial to the needs of gluing different sheet metal parts and different positions of the same sheet metal part, and has higher flexibility.

[0020] Furthermore, at the end opposite to the glue outlet 33, the main body 36 is connected with a glue supply hose 2 and a cable 4 for power supply and control, and the cable 4 is connected to a preset interface at the upper end of the convex shell 13. A connection hole 37 is provided at the upper end of the main body 36, and the connection hole 37 is provided for fixing the glue head 3. In this solution, the glue head 3 can be fixedly connected to the robot arm to realize the multi-degree-of-freedom movement of the glue head 3 for glue application.

[0021] Combination Figure 2 and Figure 7As shown, a glue feeding mechanism 31 is provided at one end of the main body 36, and the glue feeding mechanism 31 includes a film tape 314, and the film tape 314 is located directly below the glue outlet 33. The glue delivered from the glue outlet 33 falls onto the film tape 314, and then is transferred by the film tape 314 and placed on the sheet metal. It is explained here that the glue and the film tape 314 materials do not adhere to each other. For example, if the material of the glue is epoxy resin glue, the material of the film tape 314 can be selected from tetrafluoroethylene, silicone, fluororubber, etc.

[0022] Combination Figure 2 and Figure 3 As shown, a chamber is provided inside the main body 36, and a piston 38 is provided in the chamber, that is, the piston 38 can slide in the chamber, and the rear end of the piston 38 is fixedly connected to a pipe fitting, and the rubber supply hose 2 is connected thereto, and the rubber supply hose 2 pumps glue into the chamber between the piston 38 and the glue outlet 33, and the movement of the piston 38 can change the pressure in the chamber where the glue is located, thereby controlling the flow rate of the glue discharged from the glue outlet 33, and the side wall of the pipe fitting is fixedly connected to a magnetic ring 39, and coils 310 are provided on both sides of the magnetic ring 39, and the coils 310 are fixedly connected to the main body 36, and the two coils 310 are energized in conjunction with each other, and a magnetic field is generated to interact with the magnetic ring 39, thereby pushing the piston 38 to move axially, thereby fine-tuning the pressure in the chamber where the glue is located, and ensuring the quality of the glue output.

[0023] like Figure 4 As shown, the lateral spacing control mechanism 32 also includes a horizontally arranged first motor 323 and a first screw 322. One end of the first screw 322 is fixedly connected to the output end of the first motor 323, and the first screw 322 is threadedly connected to a protrusion arranged on the back of the lateral baffle 321. That is, the first motor 323 is started, and the lateral baffle 321 is moved along the axial direction of the first screw 322 through the transmission of the first screw 322, thereby adjusting the length of the glue outlet 33. In addition, a groove for placing the first motor 323, the first screw 322 and the lateral baffle 321 is arranged at the end of the main body 36.

[0024] Combination Figure 5 and Figure 6As shown, the vertical spacing control mechanism 34 also includes a horizontally arranged movable plate 341, a second screw rod 344, and a second motor 345. One end of the second screw rod 344 is fixedly connected to the output end of the second motor 345. The second screw rod 344 is threadedly connected to a protrusion arranged on the back of the movable plate 341. An inclined hole 342 is arranged on the movable plate 341. A protruding rod 346 is fixedly connected to the upper side wall of the vertical baffle 343, and the protruding rod 346 is slidably fitted in the inclined hole 342. That is, the second motor 345 is started, and the second screw rod 344 is driven to realize the axial movement of the movable plate 341 along the second screw rod 344. The movable plate 341 and the vertical baffle 343 adopt a matching mode of the baffle rod 346 and the inclined hole 342. When the movable plate 341 moves, the vertical baffle 343 moves vertically, thereby realizing the width adjustment of the glue outlet 33. In addition, a groove for accommodating the vertical spacing control mechanism 34 is provided at the end of the main body 36, and there is no interference between the lateral spacing control mechanism 32 and the vertical spacing control mechanism 34, and the lateral baffle 321 and the vertical baffle 343 are staggered.

[0025] like Figure 7 As shown, the glue feeding mechanism 31 also includes a first side plate 311 and a second side plate 315. The shapes of the first side plate 311 and the second side plate 315 are similar to triangles, and a wedge block 312, a guide rod 318 and a third motor 3110 are arranged between the first side plate 311 and the second side plate 315. The film belt 314 is sleeved on the wedge block 312, the guide rod 318 and the third motor 3110. The third motor 3110 is started to drive the film belt 314 to rotate. When the glue falls on the film belt 314, the glue is transported out from the front end of the wedge block 312 as the film belt 314 moves, and the guide rod 318 is located below the glue outlet 33.

[0026] Furthermore, the first side plate 311 is buckled and arranged on the second side plate 315, and a screw and a fixing nut 313 are arranged on the wedge block 312. When the first side plate 311 needs to be removed, the fixing bolt 313 needs to be unscrewed. The purpose of this arrangement is to facilitate the replacement of the film strip 314. Since the film strip 314 passes through the sharp edge of the wedge block 312, the film strip 314 is severely bent and prone to fatigue damage. The film strip 314 needs to pass through the sharp edge of the wedge block 312 to facilitate the separation of glue from the film strip 314.

[0027] A support rod 317 is fixedly connected to the middle of the upper end of the second side plate 315, and the support rod 317 is L-shaped. Image sensors 316 are respectively provided at the lower and upper parts of the support rod 317. The two image sensors 316 are used to obtain the dimensions of the glue in two directions by image recognition, which is conducive to fine-tuning the parameters of the glue output, for example, controlling the power supply status of the first motor 323, the second motor 345 and the coil 310.

[0028] like Figure 8 As shown, the glue feeding mechanism 31 includes a tensioning mechanism 319, which is used to adjust the tightness of the film belt 314. The tensioning mechanism 319 includes a cross bar, and the cross bar is inserted and arranged on the second side plate 315, and the cross bar and the second side plate 315 are rotatably connected.

[0029] One end of the cross bar is fixedly connected to the swing arm 3192, and the other end of the swing arm 3192 is rotatably connected to the tensioning roller 3191, and the tensioning roller 3191 presses the film belt 314 upward, that is, presses the film belt 314 upward. When installing the film belt 314, the film belt 314 can be firstly sleeved on the wedge block 312, the guide rod 318 and the third motor 3110, and then the tensioning roller 3191 is moved to press against the film belt 314, which also provides convenience for the film belt 314. The other end of the cross bar is provided with a torsion spring 3193 for keeping the tensioning roller 3191 pressing against the film belt 314 upward, and the outer side of the torsion spring 3193 is covered with a cover 3194, that is, the torsion spring 3193 is in a pre-tightened state, one end of which is fixed on the cross bar, and the other end is provided on the second side plate 315 or the cover 3194.

[0030] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. A glue coating machine for automobile sheet metal parts, comprising a glue supply device (1), a glue supply hose (2) and a glue applying head (3), wherein both ends of the glue supply hose (2) are respectively connected to the glue supply device (1) and the glue applying head (3), and characterized in that: The glue spraying head (3) comprises a main body (36), one end of the main body (36) is provided with a glue outlet (33), a transverse spacing control mechanism (32) and a vertical spacing control mechanism (34) are staggeredly arranged at the glue outlet (33), the transverse spacing control mechanism (32) comprises a transverse baffle (321), and the transverse baffle (321) moves horizontally to change the aperture of the glue outlet (33), and the vertical spacing control mechanism (34) comprises a vertical baffle (343), and the vertical baffle (343) moves vertically to change the aperture of the glue outlet (33); A glue feeding mechanism (31) is provided at one end of the main body (36), the glue feeding mechanism (31) comprising a film strip (314), and the film strip (314) is located directly below the glue outlet (33); The main body (36) is provided with a chamber inside, and a piston (38) is provided in the chamber. The rear end of the piston (38) is fixedly connected to a pipe fitting, and a rubber hose (2) is connected thereto. The side wall of the pipe fitting is fixedly connected to a magnetic ring (39). Coils (310) are provided on both sides of the magnetic ring (39), and the coils (310) are fixedly connected to the main body (36).

2. The glue coating machine for automobile sheet metal parts according to claim 1, characterized in that: The lateral spacing control mechanism (32) further comprises a first motor (323) and a first screw rod (322) arranged horizontally, one end of the first screw rod (322) being fixedly connected to an output end of the first motor (323), and the first screw rod (322) being threadedly connected to a protrusion provided on the back of the lateral baffle (321).

3. The glue coating machine for automobile sheet metal parts according to claim 1, characterized in that: The vertical spacing control mechanism (34) further comprises a horizontally arranged movable plate (341), a second screw rod (344) and a second motor (345); one end of the second screw rod (344) is fixedly connected to the output end of the second motor (345); the second screw rod (344) is threadedly connected to a protrusion provided on the back of the movable plate (341); an inclined hole (342) is provided on the movable plate (341); a protruding rod (346) is fixedly connected to the upper side wall of the vertical baffle (343), and the protruding rod (346) is slidably fitted in the inclined hole (342).

4. The glue coating machine for automobile sheet metal parts according to claim 1, characterized in that: The glue feeding mechanism (31) further comprises a first side plate (311) and a second side plate (315), and a wedge block (312), a guide rod (318) and a third motor (3110) are arranged between the first side plate (311) and the second side plate (315), the film belt (314) is sleeved on the wedge block (312), the guide rod (318) and the third motor (3110), and the guide rod (318) is located below the glue outlet (33).

5. The glue coating machine for automobile sheet metal parts according to claim 6, characterized in that: A support rod (317) is fixedly connected to the middle portion of the upper end of the second side plate (315), and image sensors (316) are respectively provided at the lower portion and the upper portion of the support rod (317).

6. The glue coating machine for automobile sheet metal parts according to claim 6, characterized in that: The glue feeding mechanism (31) comprises a tensioning mechanism (319), the tensioning mechanism (319) comprises a cross bar, and the cross bar is interspersed and arranged on the second side plate (315); One end of the cross bar is fixedly connected to the swing arm (3192), and the other end of the swing arm (3192) is rotatably connected to the tensioning roller (3191), and the tensioning roller (3191) presses upward against the film belt (314), and the other end of the cross bar is provided with a torsion spring (3193) for keeping the tensioning roller (3191) presses upward against the film belt (314), and the outer side of the torsion spring (3193) is covered with a sealing cover (3194).

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