A welding device for square tube and round tube
By designing an automated square tube and round tube welding device, the problems of complex operation and low efficiency in traditional processes are solved, and efficient automatic connection and welding of square tube and round tube are realized, improving production efficiency and product quality.
Patent Information
- Application Number
- CN202411463202.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2044-10-21
AI Technical Summary
The traditional connection process between square and round tubes is complex and relies on manual operations, resulting in low work efficiency and difficult to meet the needs of modern industrial production for efficient automation.
A welding device between square tube and round tube is designed, including the body, push channel, bending mechanism and welding unit, to realize the automatic bending of square tube and automatic push of round tube. The welding process does not require manual intervention and passes through the discharge groove. Realize automatic discharge of finished products.
It significantly improves work efficiency, reduces production costs, and realizes efficient automatic connection and welding between square and round tubes, ensuring the quality of the connection and the structural strength of the finished product.
Smart Images
Figure CN118951468B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of welding devices, and in particular to a welding device for square tubes and round tubes. Background Art
[0002] In the manufacture and processing of electric vehicles, the connection of square tubes and round tubes is a common process. However, the traditional connection method is highly dependent on welding technology, and there are significant problems of manpower and time consumption in this process. Specifically, square tubes and round tubes need to be manually loaded one by one before welding, and unloading after welding is also time-consuming and labor-intensive. Especially in the scenario where the square tube needs to be bent 90 degrees to fit the round tube, the traditional process is more cumbersome: first, the installation holes need to be preset at the bending part of the square tube, and then the round tube is inserted into these holes, and finally the welding operation is performed. This series of bending, connecting and welding steps is not only complicated to operate, but also highly dependent on manual operation, resulting in low work efficiency, and it is difficult to meet the needs of modern industrial production for efficiency and automation.
[0003] In order to solve the above problems and improve production efficiency and product quality, the present invention provides a welding device for square tubes and round tubes. Summary of the invention
[0004] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a welding device for square tubes and round tubes, which can bend a square tube and then connect it to a round tube.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a square tube and round tube welding device, comprising a body, the square tube is provided with a notch adapted to the round tube, and further comprising:
[0006] A first pushing channel, wherein the square tubes are sequentially arranged and installed inside the first pushing channel, the square tubes move inside the first pushing unit, and a discharge trough is provided at the pushing end of the first pushing channel;
[0007] A second pushing channel, wherein a pushing unit capable of pushing the round tube to move is provided at the lower end of the second pushing channel, and the round tube can move along the axial direction at the lower end of the second pushing channel;
[0008] A bending mechanism, wherein the bending mechanism comprises an insertion rod, one end of which can be inserted from one end of the square tube and drive the one end of the square tube to perform a circular motion on the machine body;
[0009] A welding unit, which is mounted on the machine body and includes a welding gun, the end of which points to the connection between the round tube and the square tube;
[0010] When one end of the square tube follows the insertion rod to make a circular motion, the circular tube is located at the gap of the corresponding square tube, and the end of the square tube away from the insertion rod is in a fixed state.
[0011] Preferably, an arc plate is fixed on the machine body, and the bending mechanism includes a support block moving along the arc plate, a track is provided on the inner side of the arc plate, and a slide groove adapted to the track is provided on the support block, and the support block can slide freely on the arc plate by adhering to the arc surface of the arc plate, and the insertion rod passes through the support block and slides on the support block, and raised slide bars are provided on both sides of the insertion rod, and a straight groove adapted to the slide bar is provided inside the support block, and the insertion rod can slide arbitrarily inside the support block under the support of the slide bar, and teeth are provided on one side wall of the insertion rod, and a first gear meshing with the teeth on the insertion rod is rotatably installed inside the support block.
[0012] Preferably, an arc groove is opened inside the arc plate, part of the support block extends into the arc groove, teeth are provided on the side walls of the arc groove, a second gear is rotatably installed inside the support block, and the second gear meshes with the teeth on the arc groove.
[0013] Preferably, the square tube can form a pushing surface during the movement inside the first pushing channel, and the round tube can form a pushing line during the movement inside the second pushing channel, and the pushing line is perpendicular to the pushing surface.
[0014] Preferably, a pressure plate is slidably mounted inside the first pushing channel via a spring, a first oil cylinder is fixed on the machine body, and an output end of the first oil cylinder is connected to the pressure plate.
[0015] Preferably, a box body is fixed on the machine body, the second pushing channel is arranged inside the box body, the second pushing channel is wide at the top and narrow at the bottom, and the width of the lower end of the second pushing channel is adapted to the diameter of the round tube.
[0016] Preferably, a second oil cylinder is fixed on one side of the box body, the second oil cylinder is located at the lower end of the second pushing channel and is parallel to the internal circular tube of the second pushing channel, and a push plate is fixed on the output end of the second oil cylinder, the push plate can push the bottom circular tube to move.
[0017] Preferably, the welding unit comprises a mounting plate and a slide plate, the mounting plate is fixed on the machine body, the slide plate is slidably mounted on the mounting plate, and the welding gun is obliquely mounted on the mounting plate and can slide axially on the mounting plate.
[0018] The beneficial effects of the present invention are:
[0019] The present invention integrates two push channels to realize the automatic feeding function of square tubes and round tubes. After the welding operation is completed, the finished product is automatically pushed out by the discharge chute without direct human intervention, saving manpower and material costs. In addition, the present invention also installs an arc plate structure on the machine body and is equipped with a bending mechanism that can move flexibly along the arc plate. This design enables the square tube to be automatically bent to the required angle (such as 90 degrees) and smoothly sleeved on the round tube before the welding operation. Subsequently, the welding unit is immediately started to accurately weld the joints to ensure the quality of the connection. The entire process is highly automated, and no human intervention is required from bending, sleeve welding to the final product launch, which significantly improves work efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the present invention.
[0021] Figure 2 It is an internal cross-sectional view of the machine body and the box body of the present invention.
[0022] Figure 3 It is a connection diagram of the first pushing channel and the second pushing channel on the body of the present invention.
[0023] Figure 4 It is an internal cross-sectional view of the machine body and arc plate of the present invention.
[0024] Figure 5 This is a connection diagram between the interior of the support block and the insertion rod of the present invention.
[0025] Figure 6 For the present invention Figure 4 Cross-sectional view in the AA direction.
[0026] Figure 7 For the present invention Figure 4 Enlarged view of point B in .
[0027] In the figure: 1, machine body, 2, first pushing channel, 3, second pushing channel, 4, insertion rod, 5, discharge chute, 6, arc plate, 7, support block, 8, box body, 9, pressure plate, 10, spring, 11, first oil cylinder, 12, second oil cylinder, 13, slide plate, 14, welding gun, 15, first gear, 16, second gear, 17, mounting plate. DETAILED DESCRIPTION
[0028] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.
[0029] Embodiment 1
[0030] like Figure 1-Figure 3As shown, in this embodiment, a square tube and round tube welding device is provided, including a body 1, a notch adapted to the round tube is provided on the square tube, and before the square tube and the round tube are welded and connected, a specific connection needs to be adopted, that is, the square tube is precisely bent. In this embodiment, the square tube is designed to be bent 90 degrees, and this bent part is sleeved on the round tube to ensure that it fits tightly to the surface of the round tube. This connection method not only realizes the effective connection between the square tube and the round tube, but also greatly enhances the structural strength and stability of the welded product, making it less likely to deform. It is worth noting that before the square tube is bent, a corresponding notch will be prepared in advance on the square tube to ensure the smooth progress of the bending process and the rationality of the structure after bending, and also includes: a first push channel 2, a second push channel 3, a bending mechanism and a welding unit.
[0031] The square tubes are arranged in sequence inside the first push channel 2. The first push channel 2 is designed as a vertical structure on the body 1, and a plurality of square tubes are inserted vertically inside the first push channel 2. These square tubes are not only firmly placed in the channel, but also have the ability to move horizontally inside the channel. In particular, the notches on each square tube are precisely arranged on the front side of its moving direction. This design is intended to ensure that in subsequent operations (such as bending or docking), the notches can face the correct position, which is convenient for connection or cooperation with round tubes or other components. The square tube moves inside the first push unit, and a discharge trough 5 is provided at the push end of the first push channel 2. The opening of the discharge trough 5 is designed as the discharge port of the square tube, and its discharge direction is clearly perpendicular to the extension direction of the first push channel 2. This layout ensures that when the square tube and the round tube complete the processing process, the finished product can move smoothly outward from the outlet of the discharge trough 5, thereby realizing an automated discharge process and improving production efficiency and convenience of operation. In short, the design of the discharge trough 5 enables the finished product to be easily separated from the production line and complete the discharge operation.
[0032] The lower end of the second push channel 3 is provided with a push unit capable of pushing the round tube to move. The round tube can move along its axial direction at the lower end of the second push channel 3. In this embodiment, a number of round tubes are horizontally installed inside the second push channel 3, and they maintain a mutually perpendicular layout with the square tube in the vertical direction. Due to the effect of gravity, when the round tube at the bottom of the second push channel 3 is successfully transmitted out of the channel, the remaining round tubes will move down along the channel in turn to fill the vacant position. In particular, when the square tube is located inside the discharge trough 5, its position just forms a vertical correspondence with the round tube at the bottom of the second push channel 3. After being activated, the push unit will push the round tube to move in the horizontal direction until the round tube is accurately inserted into the preset notch inside the square tube. It is worth noting that the length of the notch is designed to be longer than the diameter of the round tube to ensure that the round tube can be fully and firmly embedded. In addition, both ends of the notch are designed to be arc-shaped, and the diameters of these arcs match the diameter of the round tube, ensuring that when the round tube is inserted into the notch, it can fit smoothly and tightly with the bottom arc at the lower end of the notch, thereby achieving a stable connection between the square tube and the round tube.
[0033] The square tube can form a pushing surface when moving inside the first pushing channel 2, and the round tube can form a pushing line when moving inside the second pushing channel 3. The pushing line is perpendicular to the pushing surface, which facilitates the connection between the square tube and the round tube.
[0034] The bending mechanism includes a rod 4, one end of which can be inserted from one end of the square tube and drive the end of the square tube to make a circular motion on the body 1. When the rod 4 is fully inserted into the square tube, the axis of its rotation precisely coincides with the axis of the round tube. During the movement of the square tube, since the distance between the square tube and the end of the rod 4 will gradually increase, in order to ensure that the square tube will not accidentally fall off during the rotation process, the length of the rod 4 inserted into the square tube must be long enough to provide the necessary stability and retention force, thereby preventing the square tube and the rod 4 from separating when the distance changes.
[0035] The welding unit is mounted on the machine body 1 , and includes a welding gun 14 , the end of which points to the connection between the round tube and the square tube.
[0036] Among them, when one end of the square tube follows the insertion rod 4 to make a circular motion, the circular tube is located at the gap of the corresponding square tube, and the end of the square tube away from the insertion rod 4 is in a fixed state. The bottom of the square tube is designed with a section inserted into the first push channel 2. This design enables the square tube at the rear to provide a stable support for the frontmost square tube. This support effect is particularly important when the upper end of the square tube is bent, because it can effectively prevent the bottom of the square tube from being displaced unnecessarily during the bending process, thereby ensuring that the bending accuracy and effect are not affected.
[0037] Embodiment 2
[0038] like Figure 1-Figure 4 As shown, based on the first embodiment, this embodiment provides a structural diagram of a bending mechanism, which is as follows:
[0039] An arc plate 6 is fixed on the machine body 1, and the bending mechanism includes a support block 7 that moves along the arc plate 6. A track is provided on the inner side of the arc plate 6, and a slide groove adapted to the track is provided on the support block 7. The support block 7 can be attached to the arc surface of the arc plate 6 and slide freely on the arc plate 6. The insertion rod 4 passes through the support block 7 and slides on the support block 7. Both sides of the insertion rod 4 are provided with raised slide bars, and a straight groove adapted to the slide bar is provided inside the support block 7. Under the support of the slide bar, the insertion rod 4 can slide arbitrarily inside the support block 7. A tooth is provided on one side wall of the insertion rod 4. A first gear 15 meshing with the teeth on the insertion rod 4 is rotatably installed inside the support block 7. A motor for driving the first gear 15 to rotate is fixed on the support block 7, and the output shaft of the motor is meshed with the first gear 15. When the motor drives the first gear 15 to rotate, the first gear 15 will drive the insertion rod 4 to slide on the support block 7, ensuring that the insertion rod 4 can be inserted into the interior of the square tube and complete the extraction function after bending.
[0040] An arc groove is provided inside the arc plate 6, and part of the support block 7 extends into the inside of the arc groove. Teeth are provided on the side walls of the arc groove. A second gear 16 is rotatably installed inside the support block 7, and the second gear 16 meshes with the teeth on the arc groove. A motor for driving the second gear 16 to rotate is fixed on the support block 7, and the output shaft of the motor meshes with the second gear 16. When the motor drives the second gear 16 to rotate, the support block 7 will slide on the arc groove.
[0041] Embodiment 3
[0042] like Figure 1-Figure 7 As shown, based on the first and second embodiments, this embodiment provides a driving device for a square tube and a round tube, which is as follows:
[0043] A pressing plate 9 is slidably mounted inside the first pushing channel 2 through a spring 10, and a first oil cylinder 11 is fixed on the machine body 1. The output end of the first oil cylinder 11 is connected to the pressing plate 9. The main function of the first oil cylinder 11 is to control the movement of the pressing plate 9. When the oil cylinder is working, it will pull the pressing plate 9 away from the discharge trough 5, providing an unobstructed space for the square tubes, so that the square tubes can be smoothly and orderly placed inside the second pushing channel 3. Once the square tubes are placed, the first oil cylinder 11 stops working. At this time, the pressing plate 9 will automatically move toward the square tube and apply pressure under the elastic force of the first spring 10. This pressure will cause the square tube to have a tendency to move toward the discharge trough 5, preparing for subsequent processing or transportation steps.
[0044] A box body 8 is fixed on the machine body 1, and the second pushing channel 3 is arranged inside the box body 8. The second pushing channel 3 is wide at the top and narrow at the bottom. The width of the bottom end of the second pushing channel 3 is adapted to the diameter of the round tube. Under the action of gravity, when the round tube at the bottom of the second pushing channel 3 is successfully transmitted out of the channel, the remaining round tubes will move downward along the channel in turn to fill the vacant positions.
[0045] A second oil cylinder 12 is fixed on one side of the box body 8. The second oil cylinder 12 is located at the lower end of the second pushing channel 3 and is parallel to the internal circular tube of the second pushing channel 3. When a push plate is fixed to the output end of the second oil cylinder 12, the push plate can push the bottom circular tube to move. The output end of the second oil cylinder 12 is extended, and the push plate can push the circular tube to slide, which can not only promote the connection between the circular tube and the square tube, but also complete the discharge of the product.
[0046] The welding unit includes a mounting plate 17 and a slide plate 13. The mounting plate 17 is fixed on the machine body 1. The slide plate 13 is slidably mounted on the mounting plate 17. The welding gun 14 is obliquely mounted on the mounting plate 17 and can slide axially on the mounting plate 17. The welding unit is mounted on one side of the discharge chute 5. After the square tube and the round tube are welded to form a welded product, the welding gun 14 slides a distance away from the product, so that the entire welding unit is away from the product and does not hinder the discharge of the product.
[0047] Working principle: Before welding, the first oil cylinder 11 is driven, and its output rod pulls the pressing plate 9 to move away from the discharge trough 5, thereby making room for the placement of the square tubes. Subsequently, multiple square tubes are vertically inserted into the first push channel 2 one by one. After the first oil cylinder 11 is released, the pressing plate 9 will apply a forward thrust to the square tubes by using the natural restoring force of the spring 10 to ensure that they are firmly in place.
[0048] The round tubes are placed in the designated positions inside the box 8 in an orderly manner. At this time, the second oil cylinder 12 is activated to push the round tube at the bottom to accurately enter the preset notch on the square tube. In this process, the support block 7 and the insertion rod 4 are initially located at the top of the arc plate 6. Then, the first gear 15 starts to rotate, driving the insertion rod 4 to slide along the preset path and smoothly insert into the upper part of the square tube to achieve preliminary positioning and fixation.
[0049] Next, the second gear 16 starts and rotates, which drives the support block 7 to rotate accordingly, so that the square tube is bent under the guidance of the support block 7, and finally fits perfectly on the round tube in place. After completing this assembly step, the welding unit is immediately started to perform precise spot welding on the connection point between the square tube and the round tube to ensure that the two are firmly combined.
[0050] After the spot welding operation is completed, the second oil cylinder 12 plays a role again, continues to push the product composed of the round tube and the square tube, and smoothly sends the finished product out of the machine through the discharge chute 5 for subsequent processing or transportation.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A square tube and round tube welding device, comprising a body (1), wherein the square tube is provided with a notch adapted to the round tube, characterized in that: Also includes: A first pushing channel (2), the square tubes being arranged in sequence and installed inside the first pushing channel (2), the square tubes moving inside the first pushing unit, and a discharge trough (5) being provided at the pushing end of the first pushing channel (2); A second pushing channel (3), wherein a pushing unit capable of pushing the round tube to move is provided at the lower end of the second pushing channel (3), and the round tube can move along its axial direction at the lower end of the second pushing channel (3); A bending mechanism, the bending mechanism comprising an insertion rod (4), one end of the insertion rod (4) being capable of being inserted from one end of the square tube and driving the one end of the square tube to perform circular motion on the machine body (1); A welding unit, the welding unit being mounted on the machine body (1), the welding unit comprising a welding gun (14), the end of the welding gun (14) pointing toward a connection between the round tube and the square tube; When one end of the square tube follows the insertion rod (4) to make a circular motion, the circular tube is located at the notch of the corresponding square tube, and the end of the square tube away from the insertion rod (4) is in a fixed state; An arc plate (6) is fixed on the body (1), and the bending mechanism comprises a support block (7) that moves along the arc plate (6). A track is provided on the inner side of the arc plate (6), and a slide groove that matches the track is provided on the support block (7). The support block (7) can be attached to the arc surface of the arc plate (6) and slide freely on the arc plate (6). The insertion rod (4) passes through the support block (7) and slides on the support block (7). Both sides of the insertion rod (4) are provided with raised slide bars, and a straight groove that matches the slide bar is provided inside the support block (7). The insertion rod (4) can slide arbitrarily inside the support block (7) under the support of the slide bar. A side wall of the insertion rod (4) is provided with teeth, and a first gear (15) that meshes with the teeth on the insertion rod (4) is rotatably installed inside the support block (7).
2. A square tube and round tube welding device according to claim 1, characterized in that: An arc groove is provided inside the arc plate (6), a portion of the support block (7) extends into the interior of the arc groove, teeth are provided on the side walls of the arc groove, a second gear (16) is rotatably mounted inside the support block (7), and the second gear (16) meshes with the teeth on the arc groove.
3. A square tube and round tube welding device according to claim 1, characterized in that: The square tube can form a pushing surface during the movement inside the first pushing channel (2), and the round tube can form a pushing line during the movement inside the second pushing channel (3), wherein the pushing line is perpendicular to the pushing surface.
4. A square tube and round tube welding device according to claim 1, characterized in that: A pressing plate (9) is slidably mounted inside the first pushing channel (2) via a spring (10), a first oil cylinder (11) is fixed on the machine body (1), and an output end of the first oil cylinder (11) is connected to the pressing plate (9).
5. A square tube and round tube welding device according to claim 1, characterized in that: A box body (8) is fixed on the machine body (1), and the second pushing channel (3) is arranged inside the box body (8). The second pushing channel (3) is wide at the top and narrow at the bottom, and the width of the bottom end of the second pushing channel (3) is adapted to the diameter of the circular tube.
6. A square tube and round tube welding device according to claim 5, characterized in that: A second oil cylinder (12) is fixed to one side of the box body (8), the second oil cylinder (12) is located at the bottom end of the second pushing channel (3) and is parallel to the internal round tube of the second pushing channel (3), and a push plate is fixed to the output end of the second oil cylinder (12), the push plate can push the bottom round tube to move.
7. A square tube and round tube welding device according to claim 1, characterized in that: The welding unit comprises a mounting plate (17) and a slide plate (13); the mounting plate (17) is fixed on the machine body (1); the slide plate (13) is slidably mounted on the mounting plate (17); and the welding gun (14) is obliquely mounted on the mounting plate (17) and is capable of axially sliding on the mounting plate (17).