Welding device

Abstract

This utility model relates to a welding device, including a bracket, a support plate, a first positioning fixture, a second positioning fixture, and a lifting drive mechanism for driving the support plate to rise and fall; the top plate and the support plate can be selectively and detachably connected to either the first or the second positioning fixture; the first positioning fixture includes a first placement block and a first pressing block, and the second positioning fixture includes a second placement block and a second pressing block; the lifting drive mechanism drives the support plate to move closer to or away from the top plate; by simply replacing the corresponding fixture, it can simultaneously position and connect the second workpiece to be welded to the first workpiece to be welded and the third workpiece to be welded, respectively, facilitating the welding of the first workpiece to be welded, the second workpiece to be welded, and the third workpiece to be welded together, greatly reducing purchase costs and space occupation, and has good economic and social benefits.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding device. Background Technology

[0002] Laser welding of plastics, also known as laser transmission welding, is a technique that uses the heat generated by a laser beam to melt the plastic contact surfaces and then holds the mixture under pressure in a fixture until it cools, thereby welding plastic parts together.

[0003] Laser welding has been widely used for plastic welding in recent years. Its precise and controllable heat input can effectively control the weld formation and ensure the sealing of the workpiece. The process of this technology is as follows: First, two plastic parts to be welded are clamped together on a device, and then a short-wave infrared laser beam is directed onto the area to be bonded.

[0004] However, the existing method for welding three plastic parts together often involves welding them separately using two different devices, one after the other. This significantly increases the purchase cost, and the two devices take up a lot of space.

[0005] Therefore, in this utility model patent application, the applicant has carefully researched a welding device to solve the above-mentioned problems. Utility Model Content

[0006] This utility model addresses the shortcomings of the existing technology by providing a welding device that, by simply replacing the corresponding fixture, can simultaneously position and connect the second workpiece to be welded with the first workpiece to be welded and the third workpiece to be welded, facilitating the welding of the three workpieces together. This significantly reduces purchase costs and space requirements, resulting in good economic and social benefits.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A welding apparatus includes a support, a support plate, a first positioning fixture, a second positioning fixture, and a lifting drive mechanism for driving the support plate to rise and fall.

[0009] The bracket includes a support part and a top plate and a bottom plate located at the upper and lower ends of the support part, respectively, and the stroke of the bearing plate is located between the top plate and the bottom plate;

[0010] Both the top plate and the bearing plate can be selectively and detachably connected to either the first positioning fixture or the second positioning fixture.

[0011] The first positioning fixture includes a first placement block for placing a first workpiece to be welded and a first pressing block for pressing down the connection between the first workpiece to be welded and the second workpiece to be welded. The first placement block is detachably connected to the upper end face of the support plate, and the first pressing block is detachably connected to the lower end face of the top plate.

[0012] The second positioning fixture includes a second placement block for placing the third workpiece to be welded and a second pressing block for pressing down the connection between the third workpiece to be welded and the second workpiece to be welded. The second placement block is detachably connected to the upper end face of the support plate, and the second pressing block is detachably connected to the lower end face of the top plate.

[0013] The lifting drive mechanism drives the connected support plate to move the support plate closer to or away from the top plate;

[0014] When the top plate and the support plate are both connected to the first positioning fixture, the first placement block is connected to the upper end face of the support plate, and the first pressing block is connected to the lower end face of the top plate, the lifting drive mechanism drives the support plate to move the first placement block closer to or away from the first pressing block.

[0015] When the top plate and the support plate are both connected to the second positioning fixture, the second placement block is connected to the upper end face of the support plate, and the second pressing block is connected to the lower end face of the top plate, the lifting drive mechanism drives the support plate to move the second placement block closer to or away from the second pressing block.

[0016] As a preferred embodiment, the support consists of four vertically arranged guide rods, with the upper and lower ends of the four guide rods respectively connected to the four corners of the lower end face of the top plate and the four corners of the upper end face of the bottom plate.

[0017] As a preferred embodiment, it also includes a left movable panel and a right movable panel;

[0018] The four guide rods are defined as the left front guide rod, the left rear guide rod, the right front guide rod, and the right rear guide rod, respectively.

[0019] The front and rear ends of the left movable plate are respectively connected to the left front guide rod and the left rear guide rod through the first bearing, so that the left movable plate can move up and down relative to the left front guide rod and the left rear guide rod.

[0020] The front and rear ends of the right movable plate are respectively connected to the right front guide rod and the right rear guide rod via the second bearing, so that the right movable plate can move up and down relative to the right front guide rod and the right rear guide rod.

[0021] The left and right ends of the support plate are respectively connected to the left movable plate and the right movable plate, and the lifting drive mechanism drives the support plate to move back along the four guide rods in the vertical direction.

[0022] As a preferred embodiment, the lower end face of the top plate is recessed with a positioning groove, which can be selectively and detachably connected to the first pressing block or the second pressing block.

[0023] As a preferred embodiment, the upper end surface of the top plate is recessed into a groove, which connects to the positioning groove.

[0024] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, it mainly uses the top plate and the bearing plate to be selectively and detachably connected to the first positioning fixture or the second positioning fixture. By simply replacing the corresponding fixture, it can also position and connect the second part to be welded to the first part to be welded and the third part to be welded, respectively. This makes it easy to weld the first part to be welded, the second part to be welded, and the third part to be welded together, greatly reducing the purchase cost and the space occupied, and has good economic and social benefits.

[0025] Secondly, the stability and reliability of the load-bearing plate during the lifting process are ensured through the cooperation of four guide rods, the left movable plate, and the right movable plate.

[0026] Furthermore, the positioning grooves on the top plate facilitate the assembly of the corresponding pressure blocks, thereby improving assembly efficiency.

[0027] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the support structure according to an embodiment of the present utility model (showing the support plate and the lifting drive mechanism);

[0030] Figure 3 This is a schematic diagram of the structure of the first positioning fixture according to an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the second positioning fixture according to an embodiment of the present utility model;

[0032] Figure 5 This is a schematic diagram of the second pressing block structure according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the state of the first positioning fixture in the first preset position after installation of an embodiment of the present invention (the second part to be welded is not shown);

[0034] Figure 7This is a schematic diagram of a first partial cross-sectional structure of an embodiment of the present invention (mainly showing the first and second parts to be welded);

[0035] Figure 8 This is a schematic diagram of a second partial cross-sectional structure of an embodiment of the present invention (mainly showing the third and second parts to be welded).

[0036] Explanation of icon numbers:

[0037] 10. Bracket

[0038] 11. Top Slab

[0039] 111. Positioning groove; 112. Groove

[0040] 12. Base plate

[0041] 13. Front guide rod at the left end; 14. Rear guide rod at the left end.

[0042] 15. Right end front guide rod 16. Right end rear guide rod

[0043] 21. Support plate

[0044] 22. Left movable plate 221. First bearing

[0045] 23. Right side movable plate 231. Second bearing

[0046] 30. The first positioning fixture

[0047] 31. First placement block

[0048] 311. First placement slot; 312. Second placement slot

[0049] 32. First pressing block; 321. First pressing protrusion

[0050] 40. Second positioning fixture

[0051] 41. Second placement block

[0052] 411. Third placement slot 412. Fourth placement slot

[0053] 42. Second pressing block; 421. Second pressing protrusion

[0054] 50. Lifting drive mechanism

[0055] 61. First component to be welded; 62. Second component to be welded

[0056] 63. The third component to be welded. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] like Figures 1 to 8 As shown, a welding device includes a bracket 10, a support plate 21, a first positioning fixture 30, a second positioning fixture 40, a left movable plate 22, a right movable plate 23, and a lifting drive mechanism 50 for driving the support plate 21 to rise and fall.

[0059] The bracket 10 includes a support portion and a top plate 11 and a bottom plate 12 located at the upper and lower ends of the support portion, respectively. The travel of the bearing plate 21 is between the top plate 11 and the bottom plate 12.

[0060] In this embodiment, the support consists of four vertically arranged guide rods, with the upper and lower ends of the four guide rods connected to the four corners of the lower end face of the top plate 11 and the four corners of the upper end face of the bottom plate 12, respectively. Preferably, the four guide rods are defined as the left front guide rod 13, the left rear guide rod 14, the right front guide rod 15, and the right rear guide rod 16, respectively.

[0061] The front and rear ends of the left movable plate 22 are respectively sleeved on the left front guide rod 13 and the left rear guide rod 14 through the first bearing 221, so that the left movable plate 22 can be displaced in the vertical direction relative to the left front guide rod 13 and the left rear guide rod 14.

[0062] The front and rear ends of the right movable plate 23 are respectively sleeved on the right front guide rod 15 and the right rear guide rod 16 via the second bearing 231, so that the right movable plate 23 can move vertically relative to the right front guide rod 15 and the right rear guide rod 16; the left and right ends of the bearing plate 21 are respectively connected to the left movable plate 22 and the right movable plate 23.

[0063] The lower end face of the top plate 11 is recessed upwards with a positioning groove 111, and the upper end face of the top plate 11 is recessed downwards with a groove 112, the groove 112 being connected to the positioning groove 111.

[0064] The top plate 11 and the bearing plate 21 can be selectively and detachably connected to the first positioning fixture 30 or the second positioning fixture 40.

[0065] The first positioning fixture 30 includes a first placement block 31 for placing the first workpiece to be welded 61 and a first pressing block 32 for pressing down the connection between the first workpiece to be welded 61 and the second workpiece to be welded 62. The first placement block 31 is detachably connected to the upper end face of the support plate 21, and the first pressing block 32 is detachably connected to the lower end face of the top plate 11.

[0066] Preferably, the upper end surface of the first placement block 31 is formed with a first placement groove 311 for placing the first workpiece to be welded 61 and a second placement groove 312 for placing one end of the second workpiece to be welded 62, the first placement groove 311 being connected to the second placement groove 312. The lower end surface of the first pressing block 32 is formed with a first pressing protrusion 321 for pressing down the connection between the first workpiece to be welded 61 and the second workpiece to be welded 62.

[0067] The second positioning fixture 40 includes a second placement block 41 for placing the third workpiece 63 to be welded and a second pressing block 42 for pressing down the connection between the third workpiece 63 and the second workpiece 62 to be welded. The second placement block 41 is detachably connected to the upper end face of the support plate 21 and the second pressing block 42 is detachably connected to the lower end face of the top plate 11.

[0068] Preferably, the upper end face of the second placement block 41 is formed with a third placement groove 411 for placing the third workpiece 63 to be welded and a fourth placement groove 412 for placing the other end of the second workpiece 62 to be welded, wherein the third placement groove 411 is connected to the fourth placement groove 412. The lower end face of the second pressing block 42 is formed with a second pressing protrusion 421 for pressing down on the connection between the third workpiece 63 and the second workpiece 62 to be welded.

[0069] In this embodiment, the positioning groove 111 can be selectively and detachably connected to the first pressing block 32 or the second pressing block 42.

[0070] The lifting drive mechanism 50 drives the connected support plate 21 to move the support plate 21 closer to or away from the top plate 11. In this embodiment, the lifting drive mechanism 50 is a cylinder.

[0071] When the top plate 11 and the support plate 21 are both connected to the first positioning fixture 30, the first placement block 31 is connected to the upper end face of the support plate 21, and the first pressing block 32 is connected to the lower end face of the top plate 11, the lifting drive mechanism 50 drives the support plate 21 to move the first placement block 31 closer to or away from the first pressing block 32.

[0072] When the top plate 11 and the support plate 21 are both connected to the second positioning fixture 40, the second placement block 41 is connected to the upper end face of the support plate 21, and the second pressing block 42 is connected to the lower end face of the top plate 11, the lifting drive mechanism 50 drives the support plate 21 to move the second placement block 41 closer to or away from the second pressing block 42.

[0073] In this embodiment, the lifting drive mechanism 50 drives the bearing plate 21 to move back along the four guide rods in the vertical direction.

[0074] The working principle is explained below: (First, one end of the first part to be welded 61 and the second part to be welded 62 are welded together, and then one end of the first part to be welded 61 and the second part to be welded 62 are welded together.)

[0075] 1. The first positioning fixture 30 is connected to the top plate 11 and the support plate 21 respectively, that is, the first placement block 31 is connected to the upper end face of the support plate 21, and the first pressing block 32 is connected to the lower end face of the top plate 11. The lifting drive mechanism 50 drives the support plate 21 to descend, thereby driving the first placement block 31 to descend to the first preset position and then stops working. At this time, the first placement block 31 and the first pressing block 32 maintain a first distance.

[0076] 2. First, place the first part to be welded 61 in the first placement groove 311, then place one end of the second part to be welded 62 in the second placement groove 312, and then extend the end of one end of the second part to be welded 62 into the first part to be welded 61 and connect it to it.

[0077] 3. The lifting drive mechanism 50 drives the bearing plate 21 to rise, which in turn drives the first placement block 31, the first part to be welded 61 and the second part to be welded 62 to rise together to the second preset position and then stops working. At this time, the first pressing protrusion 321 of the first pressing block 32 presses down on the connection between the first part to be welded 61 and the second part to be welded 62, and then the first welding can be performed.

[0078] 4. After the first welding is completed, the lifting drive mechanism 50 drives the bearing plate 21 to descend, which in turn drives the first placement block 31 to descend to the first preset position and then stops working. Then the second positioning fixture 40 can be replaced, that is, the second positioning fixture 40 is connected to the top plate 11 and the bearing plate 21 respectively, that is, the second placement block 41 is connected to the upper end face of the bearing plate 21, and the second pressing block 42 is connected to the lower end face of the top plate 11.

[0079] 5. First, place the third part to be welded 63 into the third placement groove 411, then place the other end of the second part to be welded 62 into the fourth placement groove 412, and then extend the other end of the second part to be welded 62 into the third part to be welded 63 and connect it to it.

[0080] 6. The lifting drive mechanism 50 drives the bearing plate 21 to rise, which in turn drives the second placement block 41, the third part to be welded 63 and the second part to be welded 62 to rise together to the second preset position and then stops working. At this time, the second pressing protrusion 421 of the second pressing block 42 presses down on the connection between the third part to be welded 63 and the second part to be welded 62. Then, the second welding can be carried out, that is, the welding of the first part to be welded 61, the second part to be welded 62 and the third part to be welded 63 into one piece is completed.

[0081] The key design feature of this utility model is that it allows for the selective detachable connection of the top plate and the bearing plate to either the first or the second positioning fixture. By simply replacing the corresponding fixture, it can simultaneously position and connect the second part to be welded to the first part to be welded and the third part to be welded, respectively. This facilitates the welding of the first part to be welded, the second part to be welded, and the third part to be welded together, greatly reducing purchase costs and space requirements, and thus achieving good economic and social benefits.

[0082] Secondly, the stability and reliability of the load-bearing plate during the lifting process are ensured through the cooperation of four guide rods, the left movable plate, and the right movable plate.

[0083] Furthermore, the positioning grooves on the top plate facilitate the assembly of the corresponding pressure blocks, thereby improving assembly efficiency.

[0084] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A welding apparatus, characterized in that: It includes a bracket, a support plate, a first positioning fixture, a second positioning fixture, and a lifting drive mechanism for driving the support plate to rise and fall; The bracket includes a support part and a top plate and a bottom plate located at the upper and lower ends of the support part, respectively, and the stroke of the bearing plate is located between the top plate and the bottom plate; Both the top plate and the bearing plate can be selectively and detachably connected to either the first positioning fixture or the second positioning fixture. The first positioning fixture includes a first placement block for placing a first workpiece to be welded and a first pressing block for pressing down the connection between the first workpiece to be welded and the second workpiece to be welded. The first placement block is detachably connected to the upper end face of the support plate, and the first pressing block is detachably connected to the lower end face of the top plate. The second positioning fixture includes a second placement block for placing the third workpiece to be welded and a second pressing block for pressing down the connection between the third workpiece to be welded and the second workpiece to be welded. The second placement block is detachably connected to the upper end face of the support plate, and the second pressing block is detachably connected to the lower end face of the top plate. The lifting drive mechanism drives the connected support plate to move the support plate closer to or away from the top plate; When the top plate and the support plate are both connected to the first positioning fixture, the first placement block is connected to the upper end face of the support plate, and the first pressing block is connected to the lower end face of the top plate, the lifting drive mechanism drives the support plate to move the first placement block closer to or away from the first pressing block. When the top plate and the support plate are both connected to the second positioning fixture, the second placement block is connected to the upper end face of the support plate, and the second pressing block is connected to the lower end face of the top plate, the lifting drive mechanism drives the support plate to move the second placement block closer to or away from the second pressing block.

2. The welding apparatus according to claim 1, characterized in that: The support consists of four vertically arranged guide rods, with the upper and lower ends of the four guide rods connected to the four corners of the lower end face of the top plate and the four corners of the upper end face of the bottom plate, respectively.

3. The welding apparatus according to claim 2, characterized in that: It also includes a left movable panel and a right movable panel; The four guide rods are defined as the left front guide rod, the left rear guide rod, the right front guide rod, and the right rear guide rod, respectively. The front and rear ends of the left movable plate are respectively connected to the left front guide rod and the left rear guide rod through the first bearing, so that the left movable plate can move up and down relative to the left front guide rod and the left rear guide rod. The front and rear ends of the right movable plate are respectively connected to the right front guide rod and the right rear guide rod via the second bearing, so that the right movable plate can move up and down relative to the right front guide rod and the right rear guide rod. The left and right ends of the support plate are respectively connected to the left movable plate and the right movable plate, and the lifting drive mechanism drives the support plate to move back along the four guide rods in the vertical direction.

4. The welding apparatus according to claim 1, characterized in that: The lower end face of the top plate is recessed with a positioning groove, which can be selectively and detachably connected to the first pressing block or the second pressing block.

5. The welding apparatus according to claim 4, characterized in that: The upper surface of the top plate is recessed downwards with a groove, which is connected to the positioning groove.

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