Hot melting welding device

Abstract

The utility model discloses a hot melting welding device which comprises a positioning mould, a hot melting welding device and a welding device, the positioning mould is provided with a profiled groove used for placing a product, and the profiled groove is internally provided with a profiling face matched with the bottom of the product in appearance; the hot melting mechanisms are arranged on the left side, the right side and the upper portion of the positioning mould respectively, the hot melting mechanisms located on the left side and the right side of the positioning mould can move face to face or back to back, the hot melting mechanism located on the upper portion of the positioning mould can move up and down, and each hot melting mechanism is provided with a hot melting head for heating and hot melting the to-be-hot-melted part of the product; and the front clamping mechanism and the rear clamping mechanism are respectively arranged on the front side and the rear side of the positioning mould and are used for clamping the front side and the rear side of the product. The special-shaped product can be accurately positioned, the hot melting mechanisms located on the left side, the right side and the upper portion of the product are close to the to-be-welded portion of the product, the hot melting heads at the front ends of the hot melting mechanisms are heated to conduct hot melting welding on the product, welding consistency is guaranteed, and welding efficiency and welding quality are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts welding, in particular to a hot-melt welding device. Background Art

[0002] A hot melt welding machine is a machine that uses heating to weld plastic parts such as household appliances, car lights, and automobile melters. An existing automobile plastic part is composed of two parts, one of which has multiple protrusions and the other has multiple sockets that match the protrusions. During assembly, the protrusions need to be inserted into the sockets, and then the protrusions are melted by a hot melt machine to weld the two parts together.

[0003] However, since both parts are of special shapes, the location of each welding point is different. The hot melt welding machine cannot accurately locate the special-shaped parts, which makes it impossible to achieve synchronous welding of all welding points. Therefore, hot melt machines or manual handheld hot melt equipment are usually used to weld each welding point one by one. This method is inefficient and cannot guarantee the consistency of the accuracy and welding quality of each welding point. Utility Model Content

[0004] The utility model aims to solve the above problems and designs a hot melt welding device to solve the problems of welding difficulties and reduced welding efficiency of special-shaped automobile parts.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is a hot melt welding device, comprising:

[0006] A positioning jig, wherein the positioning jig has a groove for placing the product, and the groove has a contoured surface that matches the bottom shape of the product;

[0007] The hot melt mechanism is respectively arranged on the left and right sides and the top of the positioning jig, wherein the hot melt mechanisms on the left and right sides of the positioning jig can move toward or away from each other, and the hot melt mechanism on the top of the positioning jig can move up and down, and the hot melt mechanism has a hot melt head for heating and hot melting the part to be hot melted of the product;

[0008] The front clamping mechanism and the rear clamping mechanism are respectively arranged on the front side and the rear side of the positioning jig, and are used to clamp the front and rear sides of the product.

[0009] Preferably, it also includes a mounting plate, on which a first fixing plate is arranged, on which the positioning jig is fixedly mounted, and on both sides of the first fixing plate second fixing plates are arranged, the second fixing plates are slidably connected to the mounting plate, and the hot melt mechanism is mounted on the second fixing plate.

[0010] Preferably, a cylinder fixing seat is provided on one side of the second fixing plate, a driving cylinder is provided on the cylinder fixing seat, and an output end of the driving cylinder is connected to the second fixing plate.

[0011] Preferably, an adjustment plate and an assembly plate are provided on the second fixing plate, a stand is provided on the adjustment plate, and the hot melt mechanism is provided on both the assembly plate and the stand.

[0012] Preferably, the adjustment plate and the first fixing plate are both provided with mounting holes, the mounting holes are both provided with adjustment knobs, and the adjustment knobs are threadedly connected to the adjustment plate and the first fixing plate.

[0013] Preferably, a vertical plate is provided on the mounting plate, a support plate is provided on the vertical plate, a lifting cylinder is provided on the support plate, a lifting plate is provided below the support plate, the lifting plate is connected to the support plate by a guide rod for upward and downward sliding, the output end of the lifting cylinder is connected to the lifting plate, and the hot melt mechanism is installed on the lifting plate.

[0014] Preferably, a downward cylinder is provided at the bottom of the lifting plate, a slide is slidably connected to the side of the downward cylinder, the output end of the downward cylinder is connected to the slide, the hot melt mechanism is vertically fixed on the slide, and a through hole is provided in the middle of the lifting plate for the hot melt mechanism to move up and down.

[0015] Preferably, the positioning jig is provided with an upper positioning fixture for pre-compacting the product, and the bottom of the upper positioning fixture has a contoured surface that matches the shape of the product.

[0016] Compared with the prior art, the beneficial effects are:

[0017] The utility model provides a positioning jig with a groove matched with the shape of the product, and a contoured surface in the groove, which can accurately position the special-shaped product, and at the same time cooperate with the front and rear clamping mechanisms to clamp the front and rear sides of the product to prevent the product from moving at will. The hot melt mechanisms located on the left and right sides and the top of the product are close to the welding parts of the product, and the hot melt heads at the front end of the hot melt mechanisms are heated to perform hot melt welding on the product. All welding points on the product are welded synchronously, which can ensure the consistency of welding. There is no need to weld each welding point one by one, which effectively improves the welding efficiency of the product and significantly improves the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the hot melt welding device in the utility model;

[0019] Figure 2 is a schematic structural diagram of a hot melt welding device from another perspective;

[0020] Figure 3 It is a structural schematic diagram of the hot melt welding device from another perspective;

[0021] Figure 4 It is a structural schematic diagram of a hot melt mechanism in a hot melt welding device;

[0022] Figure 5 It is a schematic diagram of the installation structure of the downward moving cylinder in the hot melt welding device.

[0023] In the figure, 1. mounting plate; 2. first fixing plate; 3. positioning jig; 4. second fixing plate; 5. hot melt mechanism; 501. hot melt head; 6. front clamping mechanism; 7. rear clamping mechanism; 8. connecting seat; 9. driving cylinder; 10. cylinder fixing seat; 11. lowering cylinder; 12. vertical plate; 13. supporting plate; 14. lifting cylinder; 15. lifting plate; 16. upper positioning fixture; 17. assembly plate; 18. adjustment plate; 19. adjustment knob; 20. stand. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 3 As shown, a preferred embodiment of the utility model proposes a hot melt welding device, which mainly includes a mounting plate 1, a movable module arranged on the mounting plate 1, a positioning jig 3, a hot melt mechanism 5, a front clamping mechanism 6, a rear clamping mechanism 7 and other components. In this embodiment, there are six hot melt mechanisms 5, two on each of the left and right sides of the positioning jig 3 and two on the top, which respectively perform hot melt welding on different positions on the left and right sides and the top of the product placed on the positioning jig 3.

[0026] A first fixed plate 2 is arranged in the middle of the mounting plate 1, and a second fixed plate 4 is arranged on both sides of the first fixed plate 2. The bottom of the second fixed plate 4 is slidably connected to the slide rail on the mounting plate 1, and two hot melt mechanisms 5 are arranged on each second fixed plate 4. There are two moving modules, which are respectively used to control the movement of the two second fixed plates 4 and control the hot melt mechanism 5 to approach or move away from the position of the product placed on the positioning jig 3.

[0027] The first fixing plate 2 is provided with mounting holes at the four corners, and an adjusting knob 19 is provided in each mounting hole. At the same time, a plurality of circular holes are also provided on the mounting plate 1, and the adjusting knob 19 is threadedly connected to the circular holes. By tightening the adjusting knob 19, the first fixing plate 2 can be fixed to the mounting plate 1, thereby realizing the quick installation and disassembly of the first fixing plate 2, and the installation position of the first fixing plate 2 can be adjusted through the plurality of circular holes on the mounting plate 1.

[0028] refer to Figure 1 The positioning jig 3 is fixed on the first fixed plate 2. The positioning jig 3 has a groove that matches the shape of the product. The bottom surface of the groove is a contour surface that matches the bottom shape of the product. At the same time, an upper positioning fixture 16 is placed on the positioning jig 3. The bottom of the upper positioning jig 16 also has a contour surface that matches the bottom shape of the product. After the product is placed in the groove, the upper positioning jig 16 is placed on the positioning jig 3. The upper positioning jig 16 pre-presses the product on the positioning jig 3 and can also position the product to prevent the product from moving at will, so as to ensure the accuracy of hot melting.

[0029] refer to Figure 4 An adjusting plate 18 and an assembling plate 17 are provided on the second fixing plate 4, wherein the assembling plate 17 is fixed to the second fixing plate 4 by bolts, mounting holes are provided at the diagonals of the adjusting plate 18, and an adjusting knob 19 is provided in each mounting hole, which has the same function as the adjusting knob 19 on the first fixing plate 2, and can realize quick installation and disassembly of the adjusting plate 18.

[0030] A stand 20 is provided on the adjustment plate 18, and a hot melt mechanism 5 is installed on the stand 20. At the same time, a hot melt mechanism 5 is also provided on the assembly plate 17. The stand 20 can raise the height of the hot melt mechanism 5 so as to perform hot melt welding on a position slightly upward on the side of the product, while the height of the hot melt mechanism 5 on the assembly plate 17 is lower so as to perform hot melt welding on a position slightly downward on the side of the product.

[0031] In this embodiment, the mobile module adopts a driving cylinder 9, which is horizontally fixed on a cylinder fixing seat 10, and the cylinder fixing seat 10 is installed and fixed on the mounting plate 1. A connecting seat 8 is provided on the second fixing plate 4. The output end of the driving cylinder 9 is fixedly connected to the connecting seat 8. The output end of the driving cylinder 9 is extended and retracted, driving the second fixing plate 4 to slide along the slide rail, thereby controlling the hot melt mechanism 5 to approach or move away from the product.

[0032] In other technical solutions, the moving module may also use a screw motor as a power mechanism.

[0033] The front clamping mechanism 6 and the rear clamping mechanism 7 are respectively arranged on the front and rear sides of the positioning jig 3. The front clamping mechanism 6 and the rear clamping mechanism 7 are both driven by cylinders to move the clamping plates, and cooperate with each other to clamp the front and rear sides of the product to position the product and prevent the product from moving.

[0034] refer to Figure 1 , Figure 5 A vertical plate 12 is also arranged on the mounting plate 1, a support plate 13 is fixed on the top of the vertical plate 12, a lifting plate 15 is arranged below the support plate 13, and a guide rod is arranged at each of the four corners of the lifting plate 15, the lower end of the guide rod is fixedly connected to the lifting plate 15, and the upper end is slidably connected to the support plate 13 up and down. A lifting cylinder 14 is vertically fixed on the support plate 13, the output end of the lifting cylinder 14 is fixedly connected to the lifting plate 15 below, and the lifting cylinder 14 controls the lifting plate 15 to move up and down.

[0035] The lifting plate 15 has a through hole in the middle, and a downward cylinder 11 is arranged in the through hole. The downward cylinder 11 adopts a slide plate cylinder. Two hot melt mechanisms 5 are arranged on the slide plate on the back of the slide plate cylinder. The cylinder controls the slide plate to slide up and down. When the lifting cylinder 14 controls the hot melt mechanism 5 to approach the product below, the downward cylinder 11 controls the hot melt mechanism 5 to move down to perform hot melt welding on the corresponding part of the product.

[0036] The front end of the hot melt mechanism 5 in this embodiment has a hot melt head 501. The hot melt head 501 is heated and then heats and welds the corresponding parts of the product.

[0037] According to the different shapes of the products, the positioning jig 3 and the upper positioning fixture 16 can be replaced, and the positions of the hot melt mechanisms 5 can be adjusted to meet the hot melt welding of products with different special-shaped structures.

[0038] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A hot melt welding device, characterized in that: include: A positioning jig (3), wherein the positioning jig (3) has a groove for placing the product, and the groove has a contoured surface that matches the bottom shape of the product; The hot melt mechanisms (5) are respectively arranged on the left and right sides and the top of the positioning jig (3), wherein the hot melt mechanisms (5) located on the left and right sides of the positioning jig can move towards or away from each other, and the hot melt mechanism (5) located above the positioning jig (3) can move up and down, and the hot melt mechanism (5) has a hot melt head (501) for heating and hot melting the part of the product to be hot melted; The front clamping mechanism (6) and the rear clamping mechanism (7) are respectively arranged on the front and rear sides of the positioning jig (3) and are used to clamp the front and rear sides of the product.

2. The hot melt welding device according to claim 1, characterized in that: It also comprises a mounting plate (1), a first fixing plate (2) being arranged on the mounting plate (1), the positioning jig (3) being mounted and fixed on the first fixing plate (2), second fixing plates (4) being arranged on both sides of the first fixing plate (2), the second fixing plates (4) being slidably connected to the mounting plate (1), and the hot melt mechanism (5) being mounted on the second fixing plate (4).

3. The hot melt welding device according to claim 2, characterized in that: A cylinder fixing seat (10) is provided on one side of the second fixing plate (4), a driving cylinder (9) is provided on the cylinder fixing seat (10), and an output end of the driving cylinder (9) is connected to the second fixing plate (4).

4. The hot melt welding device according to claim 3, characterized in that: The second fixing plate (4) is provided with an adjusting plate (18) and an assembling plate (17), the adjusting plate (18) is provided with a stand (20), and the hot-melt mechanism (5) is provided on both the assembling plate (17) and the stand (20).

5. The hot melt welding device according to claim 4, characterized in that: The adjusting plate (18) and the first fixing plate (2) are both provided with mounting holes, and the mounting holes are both provided with adjusting knobs (19), and the adjusting knobs (19) are threadedly connected to the adjusting plate (18) and the first fixing plate (2).

6. The hot melt welding device according to claim 2, characterized in that: A vertical plate (20) (12) is arranged on the mounting plate (1), a support plate (13) is arranged on the vertical plate (20) (12), a lifting cylinder (14) is arranged on the support plate (13), a lifting plate (15) is arranged below the support plate (13), the lifting plate (15) is connected to the support plate (13) by a guide rod so as to slide up and down, an output end of the lifting cylinder (14) is connected to the lifting plate (15), and the hot melt mechanism (5) is installed on the lifting plate (15).

7. The hot melt welding device according to claim 6, characterized in that: A downward cylinder (11) is provided at the bottom of the lifting plate (15), a slide plate is slidably connected to the side of the downward cylinder (11), an output end of the downward cylinder (11) is connected to the slide plate, the hot melt mechanism (5) is vertically fixed on the slide plate, and a through hole is provided in the middle of the lifting plate (15) for the hot melt mechanism (5) to move up and down.

8. The hot melt welding device according to claim 1, characterized in that: The positioning jig (3) is provided with an upper positioning fixture (16) for pre-pressing the product, and the bottom of the upper positioning fixture (16) has a contoured surface that matches the shape of the product.

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