Automobile armrest framework glue spraying equipment

Abstract

The application provides an automobile armrest framework glue spraying equipment, which comprises a support feeding device, a grabbing device and a glue spraying device. The support feeding device comprises a rotating workbench, a support frame and two workpiece support mechanisms, and has a feeding and discharging station and a glue spraying and grabbing station. The two workpiece support mechanisms are driven to rotate by the rotating workbench, so that the support feeding device alternately feeds the grabbing device. The grabbing device comprises a workpiece grabbing mechanism and a six-axis robot. The glue spraying device comprises a pressure disc type hot melt glue machine and a glue gun angle adjusting mechanism. The glue gun of the hot melt glue machine is arranged at a fixed position and has a plurality of nozzles capable of spraying different shapes of glue. During operation, the grabbing device drives the workpiece to move to cooperate with the glue gun to spray glue, so that different shapes of glue are sprayed on different parts of the automobile armrest framework workpiece. The equipment meets the glue spraying processing requirements of the long and narrow automobile armrest framework workpiece, and solves the operation pain point that the glue gun in the existing equipment is not suitable for long path movement due to its large weight.

Description

Technical Field

[0001] This invention relates to the field of adhesive spraying equipment, and more specifically to an adhesive spraying equipment for automotive armrest frames. Background Technology

[0002] Interior components are an integral part of a car. While they may not significantly impact the overall performance, they are directly visible and tangible to users, thus having a substantial influence on them. Currently, to enhance user comfort and the aesthetics of the car interior, and even to cater to consumer tastes and demands, automakers are placing increasingly higher demands on the aesthetic enhancement of interior components. A common method of this enhancement involves spraying hot melt adhesive onto the car's interior frame and then applying appropriate surface coverings.

[0003] like Figure 6 The first and second automotive armrest frame workpieces shown are two components of the automotive armrest frame, with an interlocking structure on their inner sides. Currently, the method for applying adhesive to these workpieces involves fixing the workpieces and then using a glue gun in a glue spraying device to spray adhesive onto their surface while moving the gun. However, both workpieces are elongated components requiring glue application to multiple areas. Current glue guns are too large and heavy, and their movement paths are inconvenient, making them unsuitable for applying adhesive to different areas of such elongated components. Furthermore, some areas of the workpieces require strip-shaped adhesive, others spiral-shaped adhesive, and still others other shapes. Moving the glue gun affects the adhesive quality, especially since different parts of the workpiece require different adhesive shapes, and existing glue spraying devices cannot guarantee the quality of the application. Therefore, a device with a fixed glue gun and a movable workpiece was designed to meet the processing requirements of applying different shapes of adhesive to different parts of the automotive armrest frame workpiece. Summary of the Invention

[0004] This invention is made to solve the above-mentioned problems, and its purpose is to provide an adhesive spraying device for automobile armrest frames.

[0005] This invention provides an adhesive spraying device for automotive armrest frames, characterized by comprising: a support feeding device for supporting workpieces and feeding them to a gripping device, including a rotary worktable, a support frame mounted on the rotary worktable, and two workpiece support mechanisms detachably mounted on the support frame. The two workpiece support mechanisms are symmetrically arranged about the central axis of the rotary worktable. Each workpiece support mechanism includes a support platform and a support mold mounted on the support platform, a first clamping assembly, a lifting assembly, and a positioning detection sensor. The support mold includes a first support portion fixed to the support platform and a second support portion that can be raised relative to the support platform by the lifting assembly. Both the first and second support portions have a contact point with the workpiece. The system includes a contoured structure adapted to support and position workpieces; a gripping device for gripping and placing workpieces on a support feeding device, and for moving the workpieces to cooperate with a glue spraying device for glue spraying, including a workpiece gripping mechanism and a six-axis robot that moves the workpiece gripping mechanism; and a glue spraying device for spraying glue onto the workpieces, including a pressure plate type hot melt glue machine with a glue gun and a glue gun angle adjustment mechanism, the glue gun being suspended and having multiple nozzles capable of spraying glue of different shapes; wherein the support feeding device has a loading / unloading station for loading and unloading workpieces and a glue spraying and gripping station for the gripping device to pick up and place workpieces, and a rotating worktable enables the two workpiece support mechanisms to alternate between the loading / unloading station and the glue spraying and gripping station.

[0006] The automotive armrest frame adhesive spraying equipment provided by the present invention may also have the following features: the support frame includes a base frame and a roller assembly, a first side positioning assembly and a second side positioning assembly disposed on the base frame. The roller assembly is used for moving the workpiece support mechanism when it is installed or removed from the support frame. The first side positioning assembly is disposed on both sides of the base frame and is used to position the workpiece support mechanism from both sides. The second side positioning assembly is disposed in the middle of the base frame and is used to position the workpiece support mechanism from a direction that is horizontal and perpendicular to the direction of action of the first side positioning assembly.

[0007] Furthermore, the first side positioning assembly includes a first side positioning cylinder, a first snap-fit ​​component, and a linear guide rail. The piston end of the first side positioning cylinder is horizontally oriented towards the opposite side of its location. The first snap-fit ​​component is connected to the piston end of the first side positioning cylinder and installed on the linear guide rail arranged parallel to the side of the first side positioning cylinder. The support platform has first positioning pins on both sides that are positioned and cooperate with the first snap-fit ​​component. The second side positioning assembly includes a second side positioning cylinder, a positioning pin, and a second snap-fit ​​component. The piston end of the second side positioning cylinder is arranged in the direction of the workpiece support mechanism as it is removed from the support frame along the roller assembly. The positioning pin is connected to the piston end of the second side positioning cylinder. The second snap-fit ​​component is arranged beside the second side positioning cylinder. The support platform has a pin hole that cooperates with the positioning pin and a second positioning pin that cooperates with the second snap-fit ​​component.

[0008] The automotive armrest frame adhesive spraying device provided by the present invention may also have the following features: a first clamping assembly is disposed at the location of the first support part, and includes a first clamping cylinder, a first clamping head, and a first clamping head seat. The cylinder body of the first clamping cylinder is fixed on the support platform or the first support part. The first clamping head is hinged to the piston end of the first clamping cylinder and hinged to the first clamping head seat. The first clamping head seat is fixed on the cylinder body of the first clamping cylinder. The first clamping head is driven by the piston rod of the first clamping cylinder to rotate around the first clamping head seat, thereby pressing the workpiece onto the first support part or releasing the workpiece.

[0009] The automotive armrest frame adhesive spraying device provided by the present invention may also have the following features: the lifting assembly is disposed at the bottom of the second support and includes a lifting cylinder, a guide bearing, and a guide shaft. The cylinder body of the lifting cylinder is fixed at the bottom of the support platform, the piston end of the lifting cylinder passes vertically upward through the support platform and is connected to the bottom of the second support. The guide bearing is mounted on the support platform, and the guide shaft cooperates with the guide bearing and its upper end is connected to the bottom of the second support.

[0010] The automotive armrest frame adhesive spraying equipment provided by the present invention may also have the following features: the positioning detection sensor includes a first positioning detection sensor disposed on the support mold and a second positioning detection sensor disposed on the side of the support mold. The first positioning detection sensor detects whether the workpiece is positioned by the pressure it receives, and the second positioning detection sensor detects whether the workpiece is positioned by measuring the distance between itself and the corresponding part of the workpiece.

[0011] The automotive armrest frame adhesive spraying device provided by the present invention may also have the following features: the workpiece gripping mechanism includes a gripping seat and a tool-side quick-change disc, a second clamping assembly and a drop detection sensor disposed on the gripping seat, and the gripping seat has a contour mold part that matches the workpiece.

[0012] Furthermore, the bottom and side surfaces of the contour mold part are contact surfaces that match the workpiece. The second clamping assembly includes a second clamping cylinder, a second clamping head, and a second clamping head seat. The cylinder body of the second clamping cylinder is fixed on the side surface of the contour mold part. The piston end of the second clamping cylinder is set in the direction corresponding to the bottom surface of the contour mold part. The second clamping head is hinged to the piston end of the second clamping cylinder and is also hinged to the second clamping head seat. The second clamping head seat is fixed on the cylinder body of the second clamping cylinder. The second clamping head is driven by the piston rod of the second clamping cylinder to rotate around the second clamping head seat, thereby pressing the workpiece onto the contour mold part or releasing the workpiece.

[0013] The glue spraying equipment for the car armrest frame provided by the present invention may also have the following features: the glue gun angle adjustment mechanism includes an angle adjustment electric cylinder and a tilt angle detection sensor, and the angle adjustment electric cylinder drives the glue gun to change the tilt angle by extending and retracting the piston rod.

[0014] The automotive armrest frame adhesive spraying device provided by this invention may also have the following features: the workpiece includes a first automotive armrest frame workpiece and a second automotive armrest frame workpiece, the first automotive armrest frame workpiece and the second automotive armrest frame workpiece are two elongated components with different inner structures, and can be joined together to form a complete automotive armrest frame; the first support part is used to support and position the end part of the automotive armrest frame workpiece, and the second support part is used to support and position the main body part of the automotive armrest frame workpiece; the workpiece gripping mechanism is used to grip one first automotive armrest frame workpiece and one second automotive armrest frame workpiece simultaneously.

[0015] The role and effect of invention

[0016] The automotive armrest frame adhesive spraying equipment according to the present invention includes a support feeding device, a gripping device, and an adhesive spraying device. The support feeding device has a loading and unloading station and an adhesive spraying gripping station. It drives two workpiece support mechanisms on the rotating worktable to rotate, thereby alternately feeding materials to the gripping device. The gripping device can grip and move the workpiece. The glue gun of the adhesive spraying device is set in a fixed position and its tilt angle can be adjusted at any time. The glue gun has multiple nozzles that can spray different shapes of glue. During the adhesive spraying operation, the gripping device moves the workpiece to cooperate with the glue gun to spray glue, thereby realizing the adhesive spraying process of spraying different shapes of glue on different parts of the automotive armrest frame workpiece. Therefore, this automotive armrest frame adhesive spraying equipment perfectly meets the adhesive spraying processing needs of long and narrow automotive armrest frame workpieces. It solves the problem that the glue guns in existing equipment are not suitable for long-path movement due to their large weight (a single three-nozzle glue gun in this application weighs up to 20kg). It also features a dual-station support and feeding device, which not only improves processing efficiency, but also allows its workpiece support mechanism to meet different support needs of the workpiece before and after adhesive spraying through the lifting and lowering of some support structures, thus exhibiting excellent adaptability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the automotive armrest frame adhesive spraying equipment in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the supporting feeding device in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the rotary table and support frame in an embodiment of the present invention;

[0020] Figure 4This is a schematic diagram of the top structure of the workpiece support mechanism in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the workpiece support mechanism in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the first clamping assembly in an embodiment of the present invention;

[0023] Figure 7 This is a partial structural schematic diagram of the workpiece support mechanism in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the gripping device in an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the workpiece gripping mechanism in an upward angle according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the workpiece gripping mechanism in an upward angle according to an embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the structure of the second clamping assembly in an embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of the adhesive spraying device in an embodiment of the present invention;

[0029] Figure 13 This is a schematic diagram of the glue gun angle adjustment mechanism in an embodiment of the present invention;

[0030] Figure 14 This is a schematic diagram of the structure of the car armrest frame workpiece in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. First automotive armrest frame workpiece; 2. Second automotive armrest frame workpiece; 100. Support feeding device; 110. Rotary worktable; 120. Support frame; 121. Base frame; 1211. Flange; 1212. Partition plate; 122. Roller assembly; 123. First side positioning assembly; 1231. First side positioning cylinder; 1232. First snap-fit ​​component; 1233. Linear guide rail; 124. Second side positioning assembly; 1241. Second side positioning cylinder; 1242. Positioning pin; 1243. Second snap-fit ​​component; 130. Workpiece support mechanism; 131. Support platform; 1311. First positioning post; 1312. Second positioning post; 1313. Reinforcing plate; 132. Support mold; 132A. First support mold; 1321A. First support part; 1322A. Second support part; 132B. Second support mold; 1321B. First support part; 1322B. Second support part; 133. First clamping assembly; 1331 First clamping cylinder; 1332 First clamping head; 1333 First clamping head seat; 134 Lifting assembly; 1341 Lifting cylinder; 1342 Guide shaft; 135 Position detection sensor; 135A First position detection sensor; 135B Second position detection sensor; 136 Valve island; 200 Gripping device; 210 Workpiece gripping mechanism; 211 Gripping seat; 2111 Intermediate connecting part; 2112 First contouring mold part ; 2113 Second contouring mold part; 212 Tool side quick-change disc; 213 Second clamping assembly; 2131 Second clamping cylinder; 2132 Second clamping head; 2133 Second clamping head seat; 214 Drop detection sensor; 220 Six-axis robot; 300 Glue spraying device; 310 Pressure plate type hot melt glue machine; 311 Glue gun; 312 Support; 320 Glue gun angle adjustment mechanism; 321 Angle adjustment electric cylinder; 322 Tilt angle detection sensor. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0034] Example

[0035] Figure 1 This is a schematic diagram of the adhesive spraying equipment for car armrest frames.

[0036] like Figure 1As shown, this embodiment provides an adhesive spraying device for an automotive armrest frame, including a support feeding device 100, a gripping device 200, and an adhesive spraying device 300. The support feeding device 100 supports the workpiece and feeds it to the gripping device 200. The support feeding device 100 has two stations: a loading / unloading station for loading and unloading workpieces and a gripping station for the gripping device 200 to pick up and place workpieces. The gripping device 200 grips and places workpieces on the support feeding device 100 and moves the workpieces to cooperate with the adhesive spraying device 300 for adhesive spraying. The adhesive spraying device 300 sprays hot melt adhesive in different shapes. The workpieces to be sprayed are a first automotive armrest frame workpiece 1 and a second automotive armrest frame workpiece 2. The various devices are described in detail below.

[0037] Figure 2 This is a structural schematic diagram of the supporting feeding device 100.

[0038] like Figure 2 As shown, the support feeding device 100 includes a rotary table 110, a support frame 120, and two workpiece support mechanisms 130. The rotary table 110 drives the support frame 120 to rotate, which in turn drives the two workpiece support mechanisms 130 on the support frame 120 to rotate, enabling the two workpiece support mechanisms 130 to alternately move between the loading / unloading station and the glue-spraying and gripping station. The support frame 120 supports and positions the two workpiece support mechanisms 130. The two workpiece support mechanisms 130 are detachably mounted on the support frame 120 and arranged symmetrically about the central axis of the rotary table 110. Each workpiece support mechanism 130 supports and positions a workpiece. The specific details of each part of the support feeding device 100 are described below.

[0039] Figure 3 This is a structural schematic diagram of the rotary worktable 110 and the support frame 120.

[0040] like Figure 3 As shown, the rotary table 110 rotates via a motor drive, which can be a servo motor or a stepper motor. The support frame 120 mainly includes a base frame 121 and a roller assembly 122 and a side positioning assembly mounted on the base frame 121. The roller assembly 122 facilitates the movement of the workpiece support mechanism 130 into position on the support frame 120, and the side positioning assembly is used to position the workpiece support mechanism 130 to prevent it from falling off the support frame 120 when rotating with the rotary table 110.

[0041] In this embodiment, the chassis 121 is in the shape of a "day" - shaped frame capable of installing two workpiece support mechanisms 130. A flange 1211 connected to the rotary table 110 is provided at the middle bottom of the chassis 121, and a partition 1212 is further provided at the middle top of the chassis 121. There are four groups of roller assemblies 122. Every two groups are used for the installation of one workpiece support mechanism 130 and are respectively arranged along both sides of the top surface of the chassis 121. When the workpiece support mechanism 130 is placed thereon, the roller assemblies 122 on both sides can support both sides of the bottom of the workpiece support mechanism 130, enabling the workpiece support mechanism 130 to be movable along the roller assemblies 122.

[0042] In this embodiment, there are six groups of side positioning components. Every three groups are used for the positioning of one workpiece support mechanism 130. Among them, two groups are the first side positioning components 123, and the other group is the second side positioning component 124. The two groups of first side positioning components 123 are respectively arranged on both sides of the chassis 121 and are used for positioning the workpiece support mechanism 130 from both sides. Each group of first side positioning components 123 includes a first side positioning cylinder 1231, a first clamping member 1232, and a linear guide rail 1233. The piston ends of the first side positioning cylinders 1231 of the two groups of first side positioning components 123 are horizontally opposed and are respectively connected to a first clamping member 1232. Each first clamping member 1232 is in the shape of a plate and is installed on the linear guide rail 1233 arranged in parallel beside the first side positioning cylinder 1231. The first clamping member 1232 realizes the positioning function by clamping the first positioning column 1311 on the side of the workpiece support mechanism 130 through the slot on it. The second side positioning component 124 is arranged in the middle of the chassis 121 and is used for positioning the workpiece support mechanism 130 from the direction horizontally perpendicular to the acting direction of the first side positioning component 123. The second side positioning component 124 includes a second side positioning cylinder 1241, a positioning pin 1242, and a second clamping member 1243. The piston end of the second side positioning cylinder 1241 is arranged corresponding to the direction in which the workpiece support mechanism 130 is unloaded from the support frame 120 along the roller assemblies 122. The positioning pin 1242 is connected to the piston end of the second side positioning cylinder 1241 and realizes the positioning function by inserting into the pin hole on the end side of the workpiece support mechanism 130. The second clamping member 1243 is arranged beside the second side positioning cylinder 1241 and realizes the positioning function by clamping the second positioning column 1312 on the end side of the workpiece support mechanism 130 through the slot on it.

[0043] Figure 4 and Figure 5 are respectively the schematic structural diagrams of the top and bottom of the workpiece support mechanism 130.

[0044] As Figure 4 and Figure 5As shown, each workpiece support mechanism 130 includes a support platform 131 and a support mold 132, a first clamping assembly 133, a lifting assembly 134 and a positioning detection sensor 135 disposed on the support platform 131.

[0045] The support platform 131 is rectangular. The top surface of the support platform 131 has first positioning posts 1311 on both sides that cooperate with the first snap-fit ​​parts 1232 of the two sets of first side positioning components 123. The bottom end of the support platform 131 has a pin hole that cooperates with the positioning pin 1242 of the second side positioning component 124 and a second positioning post 1312 that cooperates with the second snap-fit ​​part 1243. The bottom sides of the support platform 131 also have reinforcing plates 1313 that contact and cooperate with the roller assembly 122 of the support frame 120.

[0046] The support mold 132 has a contoured structure adapted to the workpiece structure, serving to support and position the workpiece. Specifically, the support mold 132 includes a first support part and a second support part. The first support part is fixedly connected to the support platform 131, and the second support part can be raised relative to the support platform 131 by the lifting assembly 134. The purpose of this arrangement is to allow the workpiece to be supported and positioned by the first and second support parts together before the adhesive spraying process, preventing it from falling off during rotation, and to allow the workpiece to be supported and positioned by the second support part alone after the adhesive spraying process, so as to minimize or avoid contact between the adhesive spraying area on the workpiece and the support mold, ensuring the integrity of the adhesive surface, and also facilitating the subsequent removal of the workpiece.

[0047] In this embodiment, as Figure 4 As shown, the support platform 131 is provided with two first support molds 132A and two second support molds 132B arranged symmetrically about the centerline. Each first support mold 132A consists of three first support parts 1321A and two second support parts 1322A, used to support a first automobile armrest frame workpiece 1. The three first support parts 1321A are respectively arranged at both ends and the middle of the first automobile armrest frame workpiece 1, and the two second support parts 1322A are respectively arranged between the three first support parts 1321A, used to support and position the main body of the first automobile armrest frame workpiece 1. Each second support mold 132B consists of two first support parts 1321B and three second support parts 1322B, used to support a second automobile armrest frame workpiece 2. The two first support parts 1321B are respectively arranged corresponding to the two ends of the second automobile armrest frame workpiece 2, and the three second support parts 1322B are arranged between the two first support parts 1321B, used to support and position the main body of the second automobile armrest frame workpiece 2.

[0048] The first clamping assembly 133 is used to clamp the workpiece onto the supporting mold 132, ensuring the workpiece is stably positioned and does not shift, facilitating precise gripping by the gripping device 200. In this embodiment, as... Figure 4 As shown, a first clamping assembly 133 is respectively provided at the two first support portions 1321A at both ends of each first support mold 132A, and at the two first support portions 1321B at both ends of each second support mold 132B. These assemblies clamp the ends of the workpiece to ensure its stable position on the support mold. Figure 6 As shown, each first clamping assembly 133 includes a first clamping cylinder 1331, a first clamping head 1332, and a first clamping head seat 1333. The cylinder body of the first clamping cylinder 1331 can be fixed on the support platform 10 or the corresponding first support part. The piston end of the first clamping cylinder 1331 is vertically upward and hinged to the first clamping head 1332. The first clamping head 1332 is hinged to the first clamping head seat 1333, and the first clamping head seat 1333 is fixed to the cylinder body of the first clamping cylinder 1331. When it is necessary to place a workpiece onto the support mold 132, the piston rod of the first clamping cylinder 1331 retracts, and the first clamping head 1332 is in the upward flipped position. At this time, the first clamping assembly 133 is in the loosened state and will not affect the placement of the workpiece. When it is necessary to clamp the workpiece, the piston rod of the first clamping cylinder 1331 extends, and the first clamping head 1332 rotates around the first clamping head seat 1333 to the downward position. At this time, the first clamping assembly 133 is in the clamping state, and the first clamping head 1332 clamps the workpiece on the support mold 132 by pressing down.

[0049] The lifting assembly 134 is used to lift the second support portion of the supporting mold 132, so that the glued workpiece can be placed on the raised second support portion, avoiding or reducing contact between the glued part and the first support portion. In this embodiment, as... Figure 5 As shown, a lifting assembly 134 is respectively provided at the bottom of the two second support parts 1322A of each first support mold 132A and at the bottom of the two second support parts 1322B of each second support mold 132B. Each lifting assembly 134 includes a lifting cylinder 1341, a guide bearing, and a guide shaft 1342. The cylinder body of the lifting cylinder 1341 is fixed to the bottom of the support platform 131, and the piston end of the lifting cylinder 1341 passes vertically upward through the support platform 131 and connects to the bottom of the second support part. The guide bearing is mounted on the support platform 131, and the guide shaft 1342 cooperates with the guide bearing and its upper end is connected to the bottom of the second support part. The guide bearing and the guide shaft 1342 can ensure the stability of the second support part when it is raised and lowered. A valve island 136 is also fixed at the bottom of the support platform 131, which is connected to the first clamping cylinder 1331 of each first clamping assembly 133 and the lifting cylinder 1341 of each lifting assembly 134.

[0050] Figure 7 This is a partial structural schematic diagram of the workpiece support mechanism 130.

[0051] The positioning detection sensor 135 is used to detect whether the workpiece is properly positioned on the support mold 132. In this embodiment, as... Figure 4 and Figure 7 As shown, the positioning detection sensor 135 includes multiple first positioning detection sensors 135A and multiple second positioning detection sensors 135B. The first positioning detection sensors 135A are pressure sensors, respectively disposed on the two first support portions 1321A at both ends of each first support mold 132A and the two first support portions 1321B at both ends of each second support mold 132B, for contacting the workpiece. When the workpiece is placed on the support mold 132, the first positioning detection sensor 135A detects whether the workpiece is in place by the pressure it receives. The second positioning detection sensors 135B are distance sensors, respectively disposed beside the two first support portions 1321A at both ends of each first support mold 132A and the two first support portions 1321B at both ends of each second support mold 132B. When the workpiece is placed on the support mold 132, the second positioning detection sensor 135B detects whether the workpiece is in place by measuring the distance between itself and the corresponding part of the workpiece.

[0052] Figure 8 This is a structural schematic diagram of the gripping device 200.

[0053] like Figure 8 As shown, the gripping device 200 includes a workpiece gripping mechanism 210 and a six-axis robot 220. The workpiece gripping mechanism 210 is used to simultaneously grip a first automotive armrest frame workpiece 1 and a second automotive armrest frame workpiece 2, and the six-axis robot 220 is used to drive the workpiece gripping mechanism 210 to move. In this embodiment, there are two gripping devices 200.

[0054] Figure 9 and Figure 10 This is a schematic diagram of the workpiece gripping mechanism 210 from different perspectives.

[0055] like Figure 9 and Figure 10 As shown, the workpiece gripping mechanism 210 includes a gripping seat 211, a tool-side quick-change disc 212 disposed on the gripping seat 211, a plurality of second clamping assemblies 213, and a plurality of drop detection sensors 214.

[0056] The gripping seat 211 is integrally formed by a central connecting part 2111 and a first contouring mold part 2112 and a second contouring mold part 2113 connected on both sides of the central connecting part 2111. The first contouring mold part 2112 is the seat portion adapted to the first automobile armrest frame workpiece 1, and its bottom and side surfaces have convex and concave structures that match the inner surface of the first automobile armrest frame workpiece 1. The second contouring mold part 2113 is the seat portion adapted to the second automobile armrest frame workpiece 2, and its bottom and side surfaces have convex and concave structures that match the inner surface of the second automobile armrest frame workpiece 2.

[0057] The tool-side quick-change disc 212 is mounted on the top surface of the intermediate connecting part 2111 of the gripper seat 211. The tool-side quick-change disc 212 is used to cooperate with the robot-side quick-change disc at the end of the six-axis robot 220 to achieve quick assembly and disassembly between the workpiece gripping mechanism 210 and the six-axis robot 220. In this embodiment, the tool-side quick-change disc 212 is a pneumatic quick-change disc, which, compared with electric and hydraulic quick-change discs, has advantages such as simple structure, low failure rate, easy maintenance, and long service life.

[0058] Multiple second clamping components 213 are distributed on the first and second contouring mold portions 2112 and 2113 of the gripping seat 211, and are used to clamp the first automobile armrest frame workpiece 1 and the second automobile armrest frame workpiece 2 onto the corresponding contouring mold portions. In this embodiment, there are six sets of second clamping components 213, with three sets corresponding to one contouring mold portion, and they are respectively arranged at both ends and the middle of the contouring mold portion. This arrangement can effectively clamp the long and narrow automobile armrest frame workpiece onto the gripping seat 211.

[0059] Figure 11 This is a schematic diagram of the structure of the second clamping assembly 213.

[0060] like Figure 11 As shown, each second clamping assembly 213 includes a second clamping cylinder 2131, a second clamping head 2134, and a second clamping head seat 2133. The cylinder body of the second clamping cylinder 2131 is fixed to the side of the corresponding contour mold part. The piston end of the second clamping cylinder 2131 is arranged in the direction corresponding to the bottom surface of the contour mold part and is hinged to the second clamping head 2134. The second clamping head 2134 is hinged to the second clamping head seat 2133, and the second clamping head seat 2133 is fixed to the cylinder body of the second clamping cylinder 2131. When it is necessary to make the gripper 211 fit or separate from the automotive armrest frame workpiece, such as... Figure 11As shown in the left side, the piston rod of the second clamping cylinder 2131 retracts, and the second clamping head 2134 is tilted downwards under the action of the piston rod of the second clamping cylinder 2131. At this time, the second clamping assembly 213 is in the released state, and the second clamping head 2134 will not affect the contact or separation between the gripping seat 211 and the automotive armrest frame workpiece. When it is necessary to clamp the automotive armrest frame workpiece, see... Figure 11 On the right side, the second clamping cylinder 2131 extends through the piston rod and drives the second clamping head 2134 to flip up around the second clamping head seat 2133. At this time, the second clamping assembly 213 is in a clamping state, and the second clamping head 2134 clamps the corresponding part of the car armrest frame workpiece on the gripping seat 211.

[0061] Multiple drop detection sensors 214 are distributed on the first contouring mold portion 2112 and the second contouring mold portion 2113 of the gripping seat 211, and are used to detect whether the gripped first automobile armrest frame workpiece 1 and second automobile armrest frame workpiece 2 have fallen. In this embodiment, there are four drop detection sensors 214, with two sensors corresponding to one contouring mold portion. The specific distribution is shown in [details omitted]. Figure 9 and Figure 10 .

[0062] Figure 12 This is a schematic diagram of the adhesive spraying device 300.

[0063] like Figure 12 As shown, the glue spraying device 300 includes a pressure plate type hot melt glue machine 310 and a glue gun angle adjustment mechanism 320. The pressure plate type hot melt glue machine 310 is equipped with multiple glue guns 311, each with multiple nozzles, capable of spraying glue in different shapes. The glue gun angle adjustment mechanism 320 is used to adjust the angle of the glue guns 311, ensuring that the angle of the glue guns 311 is controllable to accommodate glue spraying of products with various complex shapes.

[0064] In this embodiment, the pressure plate hot melt glue machine 310 is equipped with two glue guns 311, each corresponding to one of the two gripping devices. The two glue guns 311 are supported and suspended on the top of the pressure plate hot melt glue machine 310 by a bracket 312. Each glue gun 311 has three nozzles, which are used to spray dotted glue, strip glue, and spiral glue, respectively. The pressure plate hot melt glue machine 310 is equipped with two hot melt glue supply components, one for use and one for backup, to prevent the machine from stopping when adding glue.

[0065] Figure 13 This is a schematic diagram of the glue gun angle adjustment mechanism 320.

[0066] like Figure 13As shown, the glue gun angle adjustment mechanism 320 includes an angle adjustment cylinder 321 and a tilt angle detection sensor 322. The glue gun 311 is hinged to a support 312, and the angle adjustment cylinder 321 is mounted on the support 312, with its piston end hinged to the glue gun 311. The tilt angle detection sensor 322 is mounted on the glue gun 311 and is used to detect the tilt angle of the glue gun 311. In this embodiment, each glue gun 311 is provided with one angle adjustment cylinder 321 and one tilt angle detection sensor 322.

[0067] This automotive armrest frame adhesive spraying equipment also includes a control system for controlling the operation of each device. The working process and principle of this automotive armrest frame adhesive spraying equipment are explained in detail below.

[0068] Before the automotive armrest frame adhesive spraying equipment operates, for the support feeding device 100, both workpiece support mechanisms 130 must first be installed onto the support frame 120. For each workpiece support mechanism 130, after it is placed on the base frame 121, it moves towards the center of the base frame 121 along the roller assemblies 122 on both sides. When it moves into position, the second positioning post 1312 on the workpiece support mechanism 130 is precisely engaged in the slot of the second snap-fit ​​member 1243 in the center of the base frame 121. Then, the first side positioning assemblies 123 on both sides of the base frame 121 and the second side positioning assembly 124 in the center of the base frame 121 are activated. The first side positioning cylinder 1231 drives the first snap-fit ​​member 1232 to engage the corresponding first positioning post 1311, and the second side positioning cylinder 1241 drives the positioning pin 1242 to insert into the pin hole. In this way, the workpiece support mechanism 130 is positioned in two horizontal directions, and the workpiece support mechanism 130 is installed on the support frame 120.

[0069] The working process of the adhesive spraying workpiece support and feeding device 100 is as follows: First, at the loading and unloading station of the support and feeding device 100, two first automotive armrest frame workpieces 1 and two second automotive armrest frame workpieces 2 to be sprayed with adhesive are placed on the corresponding support molds of the workpiece support mechanism 130. For each support mold, when the first positioning detection sensor 135A and the second positioning detection sensor 135B both detect that the workpiece is in place, the first clamping components 133 at both ends of the mold press the ends of the workpiece, thus completing the placement of the workpiece at the loading and unloading station. Afterwards, the rotary table 110 rotates, causing the workpiece support mechanism 130, which contains the workpieces to be sprayed with adhesive, to rotate from the loading and unloading station to the adhesive spraying gripping station, waiting for the gripping device 200 to grip the workpiece.

[0070] Next, the two gripping devices 200 grip the workpieces respectively. For each gripping device 200, the six-axis robot 220 first moves the workpiece gripping mechanism 210 to a certain distance directly above the first car armrest frame workpiece 1 and the second car armrest frame workpiece 2 to be gripped. Then, with all the second clamping components 213 in the released state, the six-axis robot 220 moves the workpiece gripping mechanism 210 down, so that the first contouring mold part 2112 and the second contouring mold part 2113 of the gripping seat 211 correspond to and fit against the first car armrest frame workpiece 1 and the second car armrest frame workpiece 2 respectively. After that, all the second clamping components 213 actuate, clamping the first car armrest frame workpiece 1 and the second car armrest frame workpiece 2 onto the gripping seat 211, and the first clamping component 133 of the workpiece support mechanism 130 releases the workpiece. At this point, the workpiece gripping mechanism 210 has completed the simultaneous gripping of one first car armrest frame workpiece 1 and one second car armrest frame workpiece 2.

[0071] Then, the two gripping devices 200 move the workpiece to cooperate with the glue spraying device 300 for glue spraying. For each gripping device 200, the six-axis robot 220 moves the workpiece gripping mechanism 210 holding the workpiece to the location of the glue gun 311 of the glue spraying device 300. According to the part of the workpiece that needs glue spraying and the shape of the required glue, the glue gun angle adjustment mechanism 320 of the glue spraying device 300 adjusts the angle of the glue gun 311 in real time, and the corresponding nozzle of the glue gun 311 dispenses glue. At the same time, the six-axis robot 220 moves the workpiece gripping mechanism 210 holding the workpiece to cooperate, thus performing glue spraying on the workpiece.

[0072] During the movement of the six-axis robot 220, which drives the workpiece gripping mechanism 210 to grasp the workpiece, drop detection sensors 214 perform real-time detection on the first car armrest frame workpiece 1 and the second car armrest frame workpiece 2. When a drop detection sensor 214 fails to detect a workpiece, it means that the corresponding car armrest frame workpiece has fallen or partially detached during the movement. At this time, the drop detection sensor 214 generates a workpiece drop signal and sends it to the control system. The control system then controls the six-axis robot 220 to stop moving based on this signal.

[0073] After the workpiece is sprayed with adhesive, at the adhesive gripping station of the support feeding device 100, the second support part 1322A of each first support mold 132A and the second support part 1322B of each second support mold 132B on the workpiece support mechanism 130 are pre-lifted by the lifting component 134 at their respective bottoms. Then, the first car armrest frame workpiece 1 and the second car armrest frame workpiece 2, which have been sprayed with adhesive, are placed on it by the gripping device 200, thus completing the placement of the workpiece at the adhesive gripping station.

[0074] Finally, the rotary table 110 rotates, causing the workpiece support mechanism 130, which holds the glued workpiece, to rotate from the glue-gripping station to the loading / unloading station. This allows for workpiece retrieval at the loading / unloading station, where the workpiece to be glued can be repositioned. Because the contouring structure on the second support section itself positions the workpiece, the glued workpiece will not fall off when the rotary table 110 rotates.

[0075] The role and effect of the embodiments

[0076] The automotive armrest frame adhesive spraying equipment described in this embodiment includes a support feeding device, a gripping device, and an adhesive spraying device. The support feeding device has loading / unloading stations and an adhesive spraying gripping station. A rotating worktable drives two workpiece support mechanisms on the support feeding device to rotate, alternately feeding the workpiece to the gripping device. The gripping device grips and moves the workpiece. The adhesive gun of the adhesive spraying device is positioned in a fixed location with an adjustable tilt angle, and the gun has multiple nozzles capable of spraying different shapes of adhesive. During adhesive spraying, the gripping device moves the workpiece to coordinate with the adhesive gun's dispensing, enabling the spraying of different shapes of adhesive onto different parts of the automotive armrest frame workpiece. Therefore, this automotive armrest frame adhesive spraying equipment effectively meets the adhesive spraying needs of long and narrow automotive armrest frame workpieces, solving the problem of existing equipment where the heavy adhesive gun is unsuitable for long-distance movement. The dual-station support feeding device not only improves processing efficiency but also allows the workpiece support mechanism to meet different support requirements before and after adhesive spraying through the lifting and lowering of some support structures, demonstrating excellent adaptability.

[0077] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A car armrest frame adhesive spraying device, characterized in that, include: A support feeding device for supporting workpieces and feeding them to a gripping device includes a rotary table, a support frame mounted on the rotary table, and two workpiece support mechanisms detachably mounted on the support frame. The two workpiece support mechanisms are arranged symmetrically about the central axis of the rotary table. Each workpiece support mechanism includes a support platform and a support mold, a first clamping assembly, a lifting assembly, and a positioning detection sensor disposed on the support platform. The support mold includes a first support portion fixed on the support platform and a second support portion that can be raised relative to the support platform by the lifting assembly. Both the first support portion and the second support portion have a contoured structure adapted to the workpiece structure and used to support and position the workpiece. A gripping device for gripping and placing the workpiece on the supporting feeding device, and for moving the workpiece to cooperate with the following glue spraying device for glue spraying processing, including a workpiece gripping mechanism and a six-axis robot that moves the workpiece gripping mechanism; and A glue spraying device for spraying glue onto the workpiece includes a pressure plate type hot melt glue machine with a glue gun and a glue gun angle adjustment mechanism. The glue gun is suspended and has multiple nozzles capable of spraying glue in different shapes; The supporting feeding device has a loading and unloading station for loading and unloading the workpiece and a glue spraying and gripping station for the gripping device to pick up and put down the workpiece. The rotating worktable enables the two workpiece supporting mechanisms to alternate between the loading and unloading station and the glue spraying and gripping station.

2. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The support frame includes a base frame and a roller assembly, a first side positioning assembly, and a second side positioning assembly mounted on the base frame. The roller assembly is used to move the workpiece support mechanism when it is installed or removed from the support frame. The first side positioning components are disposed on both sides of the base frame and are used to position the workpiece support mechanism from both sides. The second side positioning component is disposed in the middle of the base frame and is used to position the workpiece support mechanism from a direction that is horizontal and perpendicular to the direction of action of the first side positioning component.

3. The automotive armrest frame adhesive spraying equipment according to claim 2, characterized in that: in, The first side positioning assembly includes a first side positioning cylinder, a first snap-fit ​​component, and a linear guide rail. The piston end of the first side positioning cylinder is horizontally oriented towards the opposite side of its location. The first snap-fit ​​component is connected to the piston end of the first side positioning cylinder and is mounted on the linear guide rail that is arranged parallel to the side of the first side positioning cylinder. The support platform is provided with first positioning posts on both sides that cooperate with the positioning of the first snap-fit ​​component; The second side positioning assembly includes a second side positioning cylinder, a positioning pin, and a second snap-fit ​​component. The piston end of the second side positioning cylinder is positioned in the direction in which the workpiece support mechanism is removed from the support frame along the roller assembly. The positioning pin is connected to the piston end of the second side positioning cylinder. The second snap-fit ​​component is arranged beside the second side positioning cylinder. The support platform has a pin hole that engages with the positioning pin and a second positioning post that engages with the second snap-fit ​​component on its end side.

4. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The first clamping assembly is disposed at the location of the first support portion and includes a first clamping cylinder, a first clamping head, and a first clamping head seat. The cylinder body of the first clamping cylinder is fixed on the support platform or the first support part. The first clamping head is hinged to the piston end of the first clamping cylinder and is also hinged to the first clamping head seat. The first clamping head seat is fixed to the cylinder body of the first clamping cylinder. The first clamping head is driven by the piston rod of the first clamping cylinder to rotate around the first clamping head seat, thereby pressing the workpiece onto the first support or releasing the workpiece.

5. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The lifting assembly is located at the bottom of the second support portion and includes a lifting cylinder, a guide bearing, and a guide shaft. The cylinder body of the lifting cylinder is fixed to the bottom of the support platform, and the piston end of the lifting cylinder passes vertically upward through the support platform and connects to the bottom of the second support part. The guide bearing is mounted on the support platform. The guide shaft cooperates with the guide bearing and its upper end is connected to the bottom of the second support part.

6. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The positioning detection sensor includes a first positioning detection sensor disposed on the supporting mold and a second positioning detection sensor disposed beside the supporting mold. The first positioning detection sensor detects whether the workpiece is in place by the pressure it receives. The second positioning detection sensor detects whether the workpiece is in place by measuring its distance from the corresponding part of the workpiece.

7. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The workpiece gripping mechanism includes a gripping seat, a tool-side quick-change disc, a second clamping assembly, and a drop detection sensor mounted on the gripping seat. The gripper has a contour mold portion that matches the workpiece.

8. The automotive armrest frame adhesive spraying equipment according to claim 7, characterized in that: in, The bottom and side surfaces of the contour mold are contact surfaces that match the workpiece. The second clamping assembly includes a second clamping cylinder, a second clamping head, and a second clamping head seat. The cylinder body of the second clamping cylinder is fixed on the side of the mold part, and the piston end of the second clamping cylinder is arranged corresponding to the bottom surface of the mold part. The second clamping head is hinged to the piston end of the second clamping cylinder and is also hinged to the second clamping head seat. The second clamping head seat is fixed to the cylinder body of the second clamping cylinder. The second clamping head is driven by the piston rod of the second clamping cylinder to rotate around the second clamping head seat, thereby pressing the workpiece onto the mold part or releasing the workpiece.

9. The automotive armrest frame adhesive spraying equipment according to claim 1, characterized in that: in, The glue gun angle adjustment mechanism includes an angle adjustment electric cylinder and a tilt angle detection sensor. The angle adjustment cylinder drives the glue gun to change its tilt angle by extending and retracting the piston rod.

10. The automotive armrest frame adhesive spraying equipment according to any one of claims 1 to 9, characterized in that: in, The workpiece includes a first automotive armrest frame workpiece and a second automotive armrest frame workpiece. The first car armrest frame workpiece and the second car armrest frame workpiece are two elongated components with different inner structures, and they can be joined together to form a complete car armrest frame. The first support portion is used to support and position the end portion of the automotive armrest frame workpiece. The second support is used to support and position the main body of the automotive armrest frame workpiece; The workpiece gripping mechanism is used to simultaneously grip one first car armrest frame workpiece and one second car armrest frame workpiece.

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