A heat sink grid assembly hot melt welding apparatus

Abstract

The application provides a heat dissipation grid assembly hot melt welding device, and belongs to the technical field of hot melt welding devices, and comprises: a rack; a transverse moving mechanism and a hot riveting lifting mechanism are arranged on the rack; the transverse moving mechanism drives a to-be-welded piece to move back and forth between a placing position and a welding position; and the hot riveting lifting mechanism drives a welding head to lift and realize pressure welding. The application provides a heat dissipation grid assembly welding device with automatic welding, which comprises a transverse moving mechanism and a hot riveting lifting mechanism. The to-be-welded piece is placed on the bottom die of the transverse moving mechanism, the device is automatically pressed, moved to the welding position, welded, returned to the placing position, and the welding is automatically completed, thereby saving time and effort, achieving good welding effect, high precision, and not needing to consider operation welding. The to-be-welded piece is placed outside the hot die, the operation personnel are prevented from entering the welding area, and the safety of the personnel is ensured.

Description

Technical Field

[0001] This invention relates to the field of hot melt welding equipment technology, and specifically to a hot melt welding equipment for radiator grille assembly. Background Technology

[0002] The radiator grille assembly has a small grille volume, requiring several spot welds, which are demanding and difficult. The radiator grille is made of plastic and uses hot riveting welding. Electric heating elements heat the column to a specific temperature, which is then transferred to a hot riveting head on a tooling. This hot riveting head, with its specific temperature range, contacts the plastic part to be riveted, pressing it under pressure for a certain period. After this time, the part is riveted, cured, and cooled before being removed from the product, completing the riveting process. However, existing automated welding equipment suffers from low efficiency and poor welding results during hot riveting, requiring manual operation, which is time-consuming, labor-intensive, and has low safety. Improvements are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a hot melt welding device for radiator grille assembly.

[0004] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows:

[0005] A radiator grille assembly hot-melt welding device includes: a frame;

[0006] The frame is equipped with a transverse movement mechanism and a hot riveting lifting mechanism;

[0007] The lateral movement mechanism is located below the hot riveting lifting mechanism and includes a base plate, a bottom mold, and a pressure plate. The base plate is movably mounted on the frame via a moving mechanism, and the moving direction is towards or away from directly below the hot riveting lifting mechanism. The bottom mold is fixed above the base plate and has a groove in its center corresponding to the workpiece to be welded. The pressure plate is movably mounted on the base plate via a first lifting mechanism, and a pressing mechanism is fixed at its bottom for pressing the workpiece to be welded. The pressure plate has an opening so that the hot riveting lifting mechanism can pass through and contact the workpiece to be welded.

[0008] The hot riveting lifting mechanism includes a fixed plate and a hot riveting mechanism; the fixed plate is movably mounted on the frame via a second lifting mechanism; the hot riveting mechanism is movably mounted on the fixed plate and includes a plurality of hot riveting heads.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, the moving mechanism includes a slide rail, a first lead screw, and a first drive mechanism; the slide rail is fixedly mounted on the frame; the base plate is slidably mounted on the slide rail; one end of the first lead screw is rotatably connected to the frame, the other end is connected to the output end of the first drive mechanism, and the middle part is threadedly connected to a protrusion fixed to the bottom of the base plate.

[0010] Based on the above solution and as a preferred embodiment of the above solution, a positioning pin is provided on the top of the base plate; the bottom mold is detachably fixed above the base plate by the positioning pin.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme, the first lifting mechanism includes a first slide rod, a second lead screw, and a second drive mechanism; the number of the first slide rods is several, which are vertically fixed on the base plate and do not intersect with the bottom mold; the pressure plate is slidably connected to the first slide rod; the second lead screw passes through and is rotatably connected to the base plate, with its top threadedly connected to the pressure plate and its bottom connected to the second drive mechanism fixed below the base plate.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme, the pressing mechanism includes an outer tube, an inner rod, and a pressure block; the outer tube is vertically fixed to the bottom of the pressure plate; the inner rod is slidably connected inside the outer tube, and its bottom extends out of the outer tube and is fixedly connected to the pressure block; a spring is sleeved on the inner rod; the spring is located inside the outer tube, its top end is fixedly connected to the inner rod, and its bottom end is fixedly connected to the outer tube.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme, the second lifting mechanism includes a second slide rod, a third lead screw, and a third drive mechanism; the second slide rod is fixed on the frame and is divided into two groups, which are respectively set at both ends of the fixed plate; the fixed plate is slidably connected to the second slide rod; the third lead screw is connected to the third drive mechanism, and its bottom passes through the fixed plate and is threadedly connected to it; the third drive mechanism is fixedly set on the frame.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme, the hot riveting mechanism further includes a cylinder; the cylinder is fixedly disposed above the fixed plate, and its telescopic end passes through the fixed plate and is fixedly connected to a plurality of the hot riveting heads.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme, the bottom of the frame is provided with feet and forklift slots.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme, the frame is provided with a hatch.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme, a control panel is provided on the rack.

[0018] The beneficial effects of the present invention are as follows: The present invention provides an automatic welding equipment for radiator grille assembly, including a transverse mechanism and a hot riveting lifting mechanism. The workpiece to be welded is placed on the bottom mold of the transverse mechanism, and the equipment automatically presses, moves to the welding position, welds, and returns to the placement position, completing the welding automatically. This saves time and effort, produces good welding results, and has high precision. Moreover, no manual operation is required for welding. The workpiece to be welded is placed outside the hot mold, ensuring that the operator does not enter the welding area and guaranteeing personnel safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure behind the hidden hatch of the present invention.

[0021] Figure 3 This is a schematic diagram of the base plate and bottom mold structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the moving mechanism structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the first lifting mechanism of the present invention.

[0024] Figure 6 This is a schematic diagram of the fixing plate and hot riveting mechanism of the present invention.

[0025] Figure 7 This is a schematic diagram of the second lifting mechanism of the present invention.

[0026] Figure 8 This is a schematic diagram of the pressing mechanism of the present invention.

[0027] In the diagram: 1. Frame; 11. Foot; 12. Forklift slot; 13. Door; 14. Control panel; 2. Lateral movement mechanism; 21. Base plate; 211. Slide rail; 212. First lead screw; 213. First drive mechanism; 214. Protrusion; 22. Bottom mold; 23. Pressure plate; 231. First slide rod; 232. Second lead screw; 233. Second drive mechanism; 24. Groove; 25. Clamping mechanism; 251. Outer tube; 252. Inner rod; 253. Pressure block; 254. Spring; 26. Positioning pin; 3. Hot riveting lifting mechanism; 31. Fixing plate; 311. Second slide rod; 312. Third lead screw; 313. Third drive mechanism; 32. Hot riveting mechanism; 321. Hot riveting head; 322. Cylinder. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 2 As shown, a radiator grille assembly hot-melt welding equipment includes: a frame 1. The frame 1 has a rectangular parallelepiped structure and is hollow inside. A traversing mechanism 2 and a hot-riveting lifting mechanism 3 are arranged inside the frame 1, with the traversing mechanism 2 positioned below the hot-riveting lifting mechanism 3. Foot supports 11 and forklift slots 12 are provided at the bottom of the frame 1. The foot supports 11 at the four corners of the bottom of the frame 1 for supporting the frame 1. The forklift slots 12 facilitate the movement of the equipment by forklifts. A door 13 is provided on the front of the frame 1.

[0030] The transverse movement mechanism 2 includes a base plate 21, a bottom mold 22, and a pressure plate 23.

[0031] The base plate 21 is movably mounted on the frame 1 via a moving mechanism, moving towards or away from the direct below the hot riveting lifting mechanism 3, so as to move the workpiece to be welded back and forth between the placement position and the welding position. Specifically, as shown... Figure 4 As shown, the moving mechanism includes a slide rail 211, a first lead screw 212, and a first drive mechanism 213. Two slide rails 211 are symmetrically fixed to the frame 1 along its centerline. The base plate 21 is slidably mounted on the slide rails 211. One end of the first lead screw 212 is rotatably connected to the frame 1, and the other end is connected to the output end of the first drive mechanism 213. The middle part is threadedly connected to a protrusion 214 fixed to the bottom of the base plate 21. The first drive mechanism 213 drives the first lead screw 212 to rotate, thereby causing the base plate 21 to move back and forth along the slide rails 211. The first drive mechanism 213 is a motor, fixed to the frame 1.

[0032] The bottom mold 22 is fixed above the base plate 21, and a groove 24 corresponding to the workpiece to be welded is opened in the center. The workpiece to be welded is placed in the groove 24 to fix its position for welding, eliminating the need for manual alignment and improving welding accuracy. For example, Figure 3 As shown, a positioning pin 26 is provided on the top of the base plate 21, and the bottom mold 22 is detachably fixed to the top of the base plate 21 by means of the positioning pin 26. The bottom of the bottom mold 22 has a recess corresponding to the positioning pin 26, and the fixed connection is achieved by the cooperation of the recess and the positioning pin 26. Preferably, the area of ​​the bottom mold 22 is smaller than the area of ​​the base plate 21, and it is arranged in the middle of the base plate 21.

[0033] The pressure plate 23 is vertically mounted on the base plate 21 via a first lifting mechanism, and a clamping mechanism 25 is fixed at the bottom for clamping the workpiece to be welded. The pressure plate 23 has an opening so that the hot riveting lifting mechanism 3 can pass through and contact the workpiece to be welded.

[0034] Preferably, such as Figure 5As shown, the first lifting mechanism includes a first slide rod 231, a second lead screw 232, and a second drive mechanism 233. Several first slide rods 231 are vertically fixed on the base plate 21 and do not intersect with the bottom mold 22. Specifically, there are four first slide rods 231, distributed at the four corners of the base plate 21, with stops at the top. A pressure plate 23 is slidably connected to the first slide rods 231, with an area roughly equivalent to the base plate 21. The second lead screw 232 passes through and is rotatably connected to the base plate 21, extending at the top to be threaded to the pressure plate 23, and at the bottom connected to the second drive mechanism 233 fixed below the base plate 21. The second drive mechanism 233 drives the second lead screw 232 to rotate, thereby causing the pressure plate 23 to slide up and down along the first slide rods 231, achieving the clamping and loosening of the workpiece to be welded. The second drive mechanism 233 is a motor, fixed to the base plate 21.

[0035] like Figure 8 As shown, the clamping mechanism 25 includes an outer tube 251, an inner rod 252, and a pressure block 253. The outer tube 251 is vertically fixed to the bottom of the pressure plate 23. The inner rod 252 is slidably connected inside the outer tube 251, with its bottom extending out of the outer tube 251 and fixedly connected to the pressure block 253. A spring 254 is fitted over the inner rod 252. The spring 254 is located inside the outer tube 251, with its top end fixedly connected to the inner rod 252 and its bottom end fixedly connected to the outer tube 251. Preferably, there are four clamping mechanisms 25, corresponding to the four corners of the radiator grille assembly.

[0036] The hot riveting lifting mechanism 3 includes a fixed plate 31 and a hot riveting mechanism 32.

[0037] The fixing plate 31 is movably mounted on the frame 1 via a second lifting mechanism. The fixing plate 31 is positioned above the pressure plate 23 and can move closer to or further away from the pressure plate 23 under the action of the second lifting mechanism. For example... Figure 7 As shown, the second lifting mechanism includes a second slide bar 311, a third lead screw 312, and a third drive mechanism 313. The second slide bar 311 is fixed to the frame 1 and is divided into two groups, respectively located at both ends of the fixed plate 31. Specifically, the two groups of second slide bars 311 are located near both sides of the frame 1 inside the frame 1, with four bars in each group, corresponding to the four corners of the fixed plate 31. The fixed plate 31 is slidably connected to the second slide bar 311. The third lead screw 312 is connected to the third drive mechanism 313, its bottom penetrating the fixed plate 31 and threadedly connected to it. The third drive mechanism 313 is fixedly mounted on the frame 1. The third drive mechanism 313 drives the third lead screw 312 to rotate, thereby causing the fixed plate 31 to slide up and down along the second slide bar 311, realizing the lifting and lowering of the hot riveting mechanism 32.

[0038] like Figure 6As shown, the hot riveting mechanism 32 is vertically and flexibly mounted on the fixed plate 31, and includes several hot riveting heads 321 and a cylinder 322. The cylinder 322 is fixedly mounted above the fixed plate 31, and its telescopic end passes through the fixed plate 31 and is fixedly connected to the several hot riveting heads 321. A connecting plate is fixed on the telescopic end of the cylinder 322, and the several hot riveting heads 321 are fixed on the connecting plate with fixed relative positions, corresponding to each welding point. Preferably, the number of hot riveting mechanisms 32 is several, but the corresponding welding points do not exceed 48. The cylinder 322 is connected to a control device and an air source.

[0039] All of the aforementioned drive mechanisms are connected to a power supply and a control device. A control panel 14 is installed on the frame 1, allowing operators to control each mechanism. An emergency stop button is provided on the control panel 14, enabling immediate shutdown in case of equipment malfunction.

[0040] Working process: With the base plate 21 and bottom mold 22 in the placement position, the operator places the workpiece to be welded, activates the pneumatic switch, and the pressure plate 23 drives the clamping mechanism 25 to clamp the workpiece to be welded. Then, it moves laterally to the welding position. The fixing plate 31 drives the hot riveting mechanism 32 to descend, and the cylinder 322 drives the hot riveting head 321 to descend, passing through the opening of the pressure plate 23 until it contacts the workpiece to be welded. The cylinder 322 maintains pressure to press and weld for about 40 seconds. After welding is completed, the hot riveting mechanism 32 and the fixing plate 31 rise back to their original positions, the lateral movement mechanism 2 moves back to the placement position, and the pressure plate 23 is released. The operator then removes the welded product and places a new workpiece to be welded.

[0041] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A radiator grille assembly hot-melt welding device, characterized in that, include: Rack (1); The frame (1) is provided with a transverse movement mechanism (2) and a hot riveting lifting mechanism (3); The transverse mechanism (2) is located below the hot riveting lifting mechanism (3) and includes a base plate (21), a bottom mold (22), and a pressure plate (23). The base plate (21) is movably mounted on the frame (1) via a moving mechanism, and the moving direction is towards or away from the direct underside of the hot riveting lifting mechanism (3). The bottom mold (22) is fixed above the base plate (21) and has a groove (24) in the center corresponding to the workpiece to be welded. The pressure plate (23) is movably mounted on the base plate (21) via a first lifting mechanism, and has a pressing mechanism (25) fixed at the bottom for pressing the workpiece to be welded. The pressure plate (23) has an opening so that the hot riveting lifting mechanism (3) can pass through and contact the workpiece to be welded. The hot riveting lifting mechanism (3) includes a fixed plate (31) and a hot riveting mechanism (32); the fixed plate (31) is movably mounted on the frame (1) via a second lifting mechanism; the hot riveting mechanism (32) is movably mounted on the fixed plate (31) and includes a plurality of hot riveting heads (321). The hot riveting mechanism (32) also includes a cylinder (322); the cylinder (322) is fixedly disposed above the fixed plate (31), and its telescopic end passes through the fixed plate (31) and is fixedly connected to a plurality of hot riveting heads (321); The pressing mechanism (25) includes an outer tube (251), an inner rod (252), and a pressing block (253); the outer tube (251) is vertically fixed to the bottom of the pressing plate (23); the inner rod (252) is slidably connected inside the outer tube (251), and its bottom extends out of the outer tube (251) and is fixedly connected to the pressing block (253); the inner rod (252) is fitted with a spring (254); the spring (254) is located inside the outer tube (251), its top end is fixedly connected to the inner rod (252), and its bottom end is fixedly connected to the outer tube (251).

2. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The moving mechanism includes a slide rail (211), a first lead screw (212), and a first drive mechanism (213); the slide rail (211) is fixedly mounted on the frame (1); the base plate (21) is slidably mounted on the slide rail (211); one end of the first lead screw (212) is rotatably connected to the frame (1), the other end is connected to the output end of the first drive mechanism (213), and the middle part is threadedly connected to a protrusion (214) fixed at the bottom of the base plate (21).

3. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The bottom plate (21) is provided with a positioning pin (26) at the top; the bottom mold (22) is detachably fixed above the bottom plate (21) by the positioning pin (26).

4. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The first lifting mechanism includes a first slide rod (231), a second lead screw (232), and a second drive mechanism (233). The first slide rod (231) consists of several rods, which are vertically fixed on the base plate (21) and do not intersect with the bottom mold (22). The pressure plate (23) is slidably connected to the first slide rod (231). The second lead screw (232) passes through and is rotatably connected to the base plate (21), with its top threadedly connected to the pressure plate (23) and its bottom connected to the second drive mechanism (233) fixed below the base plate (21).

5. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The second lifting mechanism includes a second slide rod (311), a third lead screw (312), and a third drive mechanism (313); the second slide rod (311) is fixed on the frame (1) and is divided into two groups, which are respectively set at both ends of the fixed plate (31); the fixed plate (31) is slidably connected to the second slide rod (311); the third lead screw (312) is connected to the third drive mechanism (313), and its bottom passes through the fixed plate (31) and is threadedly connected to it; the third drive mechanism (313) is fixedly set on the frame (1).

6. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The bottom of the frame (1) is provided with feet (11) and forklift slots (12).

7. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, The frame (1) is equipped with a hatch (13).

8. The radiator grille assembly hot-melt welding equipment according to claim 1, characterized in that, A control panel (14) is provided on the frame (1).

Images