Laser welding tool

Abstract

The utility model provides a laser welding tool. The laser welding tool comprises a first rotating mechanism, a second rotating mechanism, a base, a driving piece, a first pipe fitting clamping mechanism and a second pipe fitting clamping mechanism. The first rotating mechanism and the second rotating mechanism are oppositely mounted on the base at an interval, are respectively provided with a first transmission shaft and a second transmission shaft which are coaxially and rotatably mounted, and are driven by the driving part to synchronously rotate. The first pipe fitting clamping mechanism is installed on the first transmission shaft and provided with a first pipe fitting clamping piece, and a pipe fitting to be welded can be fixed. The second pipe fitting clamping mechanism is installed on the second transmission shaft and provided with a second pipe fitting clamping piece, and the second pipe fitting clamping mechanism can fix another pipe fitting to be welded. The welding tool has the advantages of being simple in structure and low in cost, the pipe fittings to be welded can stably and synchronously rotate, the situation of angle deviation during welding is avoided, meanwhile, welding seams are small and attractive, the water leakage problem is not prone to occurring, and the product standard reaching rate is high.

Description

Technical Field

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

[0002] When welding the curvature of a swing pipe, without professional welding fixtures to hold the pipe fittings, it is difficult to achieve mutual fusion between the fittings and the main body. Furthermore, during welding, the fixed angle is prone to deviation, resulting in severe weld scars and excessively large welds, which can easily lead to water leakage and substandard finished products. However, professional welding fixtures are costly and relatively complex in structure. Therefore, this utility model provides a welding fixture with a simple structure and strong practicality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a welding fixture with a simple structure and low cost.

[0004] A laser welding fixture includes a first rotating mechanism, a second rotating mechanism, a base, a driving component, a first pipe clamping mechanism, and a second pipe clamping mechanism, wherein...

[0005] The first rotating mechanism and the second rotating mechanism are mounted opposite each other and spaced apart on the base. They are respectively provided with a first transmission shaft and a second transmission shaft that are coaxial and rotatably mounted. The driving component drives the first transmission shaft and the second transmission shaft to rotate synchronously.

[0006] The first pipe clamping mechanism is mounted on the first drive shaft and driven to rotate by the first drive shaft. The first pipe clamping mechanism is provided with a first pipe clamping component, which can fix a pipe to be welded.

[0007] The second pipe clamping mechanism is mounted on the second drive shaft and driven to rotate by the second drive shaft. The second pipe clamping mechanism is equipped with a second pipe clamping component, which can fix another pipe to be welded.

[0008] The first pipe clamp and the second pipe clamp are close to each other, and the two pipes to be processed, clamped by the first pipe clamp and the second pipe clamp, cross and abut against each other, thus preparing for the welding of the two pipes.

[0009] In use, by setting up a first rotating mechanism and a second rotating mechanism that rotate synchronously, the first pipe clamping mechanism and the second pipe clamping mechanism can also rotate synchronously, thereby driving the two positioned pipes to rotate synchronously, so that oscillating or rotating welding processes can be performed.

[0010] The welding fixture provided by this utility model has the advantages of simple structure and low cost. It can make the pipe to be welded rotate stably and synchronously, thereby avoiding angular deviation during welding. At the same time, the weld is small and beautiful, and it is not easy to have water leakage problems, resulting in a high product compliance rate.

[0011] Preferably, both the first rotating mechanism and the second rotating mechanism include vertical plates, and the first drive shaft and the second drive shaft are rotatably mounted on the two vertical plates through bearings and bearing seats, thereby providing sufficient positioning space for the pipe fittings to be welded.

[0012] Preferably, the driving component is a servo motor, which is mounted on the first rotating mechanism, the second rotating mechanism, or the base via a servo mount, and the servo motor synchronously drives the second transmission shaft and the second transmission shaft.

[0013] Preferably, to improve the consistency of rotation, the driving component further includes a main drive shaft and two sets of synchronous pulleys and synchronous belts. The two ends of the main drive shaft are rotatably mounted on two vertical plates through bearings and bearing seats, and are driven to rotate by the servo motor through a reducer and a coupling. The two ends of the main drive shaft respectively drive the first drive shaft and the second drive shaft to rotate through a set of synchronous pulleys and synchronous belts.

[0014] Preferably, both the first and second rotating mechanisms are equipped with tensioning pulleys, which can be adjusted to tighten the synchronous belt and prevent power failure.

[0015] Preferably, the timing pulley, timing belt, and tensioning pulley are all located on the outward-facing side of the vertical plate, thereby avoiding occupying the inward-facing space of the vertical plate and providing sufficient installation space for the clamping mechanism and pipe fittings. In addition, it also provides sufficient operating space for welding.

[0016] Preferably, the first pipe clamping mechanism includes a support plate, a shaft clamp cover, a positioning shaft mounting plate, and a positioning shaft. One end of the support plate has a semi-circular shaft hole, and the bottom of the shaft clamp cover also has a semi-circular shaft hole. The support plate and the shaft clamp cover are assembled together and clamp the first drive shaft through the two semi-circular shaft holes. One end of the positioning shaft mounting plate is vertically mounted on the other end of the support plate, and the other end points towards the second rotating mechanism. The positioning shaft is mounted on the end of the positioning shaft mounting plate facing the first drive shaft. In use, the pipe to be welded is sleeved on the positioning shaft, thereby achieving a fixing effect.

[0017] To improve the fixing effect, the positioning shaft is selected with the same size as the internal cross-section of the pipe to be welded, so that it can form a tight fit with the pipe to be welded and is not easy to fall off.

[0018] Preferably, the second pipe clamping mechanism includes a slip ring, a cylinder mounting plate, and a clamping cylinder. The slip ring is sleeved on the end of the second drive shaft, and the clamping cylinder is mounted on the end of the slip ring via the cylinder mounting plate. The clamping cylinder includes a pair of jaws and is connected to an air source through the slip ring, enabling air to be supplied through the slip ring while rotating, thus forming a clamping action.

[0019] Preferably, a pair of opposing flat tube clamping molds are installed at the ends of the two clamping jaws, a flat mold arm seat is installed on the top of the clamping cylinder, and parallel and opposing flat mold arms are provided at both ends of the flat mold arm seat. A flat tube flat mold is installed between the two flat mold arms. The top surface of the flat tube flat mold slopes downward and connects to the channel between the two flat tube clamping molds. Thus, when the clamping cylinder clamps the pipe to be welded, the flat tube flat mold can also support other parts of the pipe to be welded, thereby forming a double positioning effect, further improving the stability of the pipe to be welded during welding and rotation, and improving the welding quality.

[0020] Preferably, the air inlet pipe of the air slip ring is connected to the air source through a manual air valve, which allows the operator to control the clamping cylinder at any time, providing convenience for welding work.

[0021] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0022] The welding fixture provided by this utility model has the advantages of simple structure and low cost. It can make the pipe to be welded rotate stably and synchronously, thereby avoiding angular deviation during welding. At the same time, the weld is small and beautiful, and it is not easy to leak water. The product compliance rate is high.

[0023] A vertical plate is installed to provide sufficient positioning space for the pipe fittings to be welded;

[0024] The synchronous belt and synchronous pulley drive structure improves the consistency of pipe rotation and enhances welding quality.

[0025] The synchronous pulley, synchronous belt, and tensioning pulley are all located on the outward-facing side of the vertical plate, thus avoiding occupying the inward-facing space of the vertical plate. This provides ample installation space for the clamping mechanism and pipe fittings, and also provides sufficient operating space for welding.

[0026] The first pipe clamping mechanism adopts a positioning shaft structure, which simplifies the positioning and disassembly of the pipe.

[0027] The second pipe clamping mechanism uses a gripper cylinder, which is easy to operate;

[0028] The second pipe clamping mechanism uses a gripper cylinder and a flat pipe mold, which provides double protection for the positioning of the pipe and further improves the stability of the pipe to be welded during welding and rotation, thereby improving the welding quality. Attached Figure Description

[0029] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0030] in:

[0031] Figure 1 This is an isometric view of a laser welding fixture;

[0032] Figure 2 This is an exploded view of a laser welding fixture;

[0033] Figure 3 This is an axonometric view of the first rotating mechanism;

[0034] Figure 4 This is an exploded view of the first rotating mechanism;

[0035] Figure 5 This is an axonometric view of the second rotating mechanism;

[0036] Figure 6 This is an exploded view of the second rotating mechanism;

[0037] Figure 7 This is an isometric view of the first pipe clamping mechanism;

[0038] Figure 8 This is an exploded view of the clamping mechanism for the first pipe fitting;

[0039] Figure 9 This is an isometric view of the second pipe clamping mechanism;

[0040] Figure 10 This is an exploded view of the second pipe clamping mechanism;

[0041] Figures 1 to 10 The components are labeled as follows: First rotating mechanism 1, First transmission shaft 11, Second rotating mechanism 2, Second transmission shaft 21, Base 3, Drive component 4, Servo motor 41, Main transmission shaft 42, Synchronous pulley 43, First pipe clamping mechanism 5, Support plate 51, Shaft clamp cover 52, Positioning shaft mounting plate 53, Positioning shaft 54, Second pipe clamping mechanism 6, Air slip ring 61, Cylinder mounting plate 62, Clamping cylinder 63, Flat pipe clamping mold 64, Flat mold arm seat 65, Flat mold arm 66, Flat pipe flat mold 67, Vertical plate 7, Tensioning wheel 8, Manual air valve 9. Detailed Implementation

[0042] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0043] Please see Figures 1 to 10 A laser welding fixture includes a first rotating mechanism 1, a second rotating mechanism 2, a base 3, a driving component 4, a first pipe clamping mechanism 5, and a second pipe clamping mechanism 6, wherein...

[0044] The first rotating mechanism 1 and the second rotating mechanism 2 are mounted opposite to and spaced apart on the base 3, and are respectively provided with a first transmission shaft 11 and a second transmission shaft 21 that are coaxial and rotatably mounted.

[0045] In one embodiment, both the first rotating mechanism 1 and the second rotating mechanism 2 include a vertical plate 7. The first transmission shaft 11 and the second transmission shaft 21 are rotatably mounted on the two vertical plates 7 through bearings and bearing seats, thereby providing sufficient positioning space for the pipe fitting to be welded.

[0046] The driving component 4 drives the first transmission shaft 11 and the second transmission shaft 21 to rotate synchronously. Preferably, the driving component 4 is a servo motor 41, which is mounted on the first rotating mechanism 1, the second rotating mechanism 2 or the base 3 via a servo mount. The servo motor 41 synchronously drives the second transmission shaft 21 and the second transmission shaft 21.

[0047] In one embodiment, to improve the consistency of rotation, the drive component 4 further includes a main drive shaft 42 and two sets of synchronous pulleys 43 and synchronous belts. The two ends of the main drive shaft 42 are rotatably mounted on two vertical plates 7 through bearings and bearing seats, and are driven to rotate by the servo motor 41 through a reducer and coupling. The two ends of the main drive shaft 42 respectively drive the first drive shaft 11 and the second drive shaft 21 to rotate through a set of synchronous pulleys 43 and synchronous belts.

[0048] Based on the above embodiments, both the first rotating mechanism 1 and the second rotating mechanism 2 are equipped with tensioning pulleys 8. The position of the tensioning pulleys 8 can be adjusted to tighten the synchronous belt and prevent power failure. In addition, the synchronous pulleys 43, the synchronous belt, and the tensioning pulleys 8 are all located on the outward-facing side of the vertical plate 7, thereby avoiding occupying the inward-facing space of the vertical plate 7, thus providing sufficient installation space for the clamping mechanism and the pipe fittings, and also providing sufficient operating space for welding.

[0049] The first pipe clamping mechanism 5 is mounted on the first drive shaft 11 and is driven to rotate by the first drive shaft 11. The first pipe clamping mechanism 5 is provided with a first pipe clamping component, which can fix a pipe to be welded.

[0050] In one embodiment, the first pipe clamping mechanism 5 includes a support plate 51, a shaft clamp cover 52, a positioning shaft mounting plate 53, and a positioning shaft 54. One end of the support plate 51 has a semi-circular shaft hole, and the bottom of the shaft clamp cover 52 also has a semi-circular shaft hole. The support plate 51 and the shaft clamp cover 52 are assembled together and clamp the first drive shaft 11 through the two semi-circular shaft holes. One end of the positioning shaft mounting plate 53 is vertically mounted on the other end of the support plate 51, and the other end points towards the second rotating mechanism 2. The positioning shaft 54 ​​is mounted on the positioning shaft mounting plate 53 at one end facing the first drive shaft 11. In use, the pipe to be welded is sleeved on the positioning shaft 54, thereby achieving a fixing effect.

[0051] In addition, to improve the fixing effect, the positioning shaft 54 ​​is selected with the same size as the cross-section of the internal space of the tube to be welded, so that it can form a tight mating with the tube to be welded and is not easy to fall off.

[0052] The second pipe clamping mechanism 6 is mounted on the second drive shaft 21 and is driven to rotate by the second drive shaft 21. The second pipe clamping mechanism 6 is provided with a second pipe clamping component, which can fix another pipe to be welded.

[0053] In one embodiment, the second pipe clamping mechanism 6 includes a slip ring 61, a cylinder mounting plate 62, and a clamping cylinder 63. The slip ring 61 is sleeved on the end of the second drive shaft 21, and the clamping cylinder 63 is mounted on the end of the slip ring 61 via the cylinder mounting plate 62. The clamping cylinder 63 includes a pair of grippers and is connected to an air source through the slip ring 61, enabling air to be supplied through the slip ring 61 while rotating, thus forming a clamping action. Preferably, the air inlet pipe of the slip ring 61 is connected to the air source through a manual air valve 9, allowing the operator to control the clamping cylinder 63 at any time, providing convenience for welding work.

[0054] Based on the above embodiment, a pair of opposing flat tube clamping molds 64 are installed at the ends of the two clamping jaws, and a flat mold arm seat 65 is installed on the top of the clamping cylinder 63. The two ends of the flat mold arm seat 65 are provided with parallel and opposing flat mold arms 66. A flat tube flat mold 67 is installed between the two flat mold arms 66. The top surface of the flat tube flat mold 67 slopes downward and connects to the channel between the two flat tube clamping molds 64. Thus, when the clamping cylinder 63 clamps the pipe to be welded, the flat tube flat mold 67 can also support other parts of the pipe to be welded, thereby forming a double positioning effect, further improving the stability of the pipe to be welded during welding and rotation, and improving the welding quality.

[0055] The first pipe clamp and the second pipe clamp are close to each other, and the two pipes to be processed, clamped by the first pipe clamp and the second pipe clamp, cross and abut against each other, thus preparing for the welding of the two pipes.

[0056] In use, by setting up a first rotating mechanism 1 and a second rotating mechanism 2 that rotate synchronously, the first pipe clamping mechanism 5 and the second pipe clamping mechanism 6 can also rotate synchronously, thereby driving the two positioned pipes to rotate synchronously, so that oscillating or rotating welding processes can be performed.

[0057] The welding fixture provided by this utility model has the advantages of simple structure and low cost. It can make the pipe to be welded rotate stably and synchronously, thereby avoiding angular deviation during welding. At the same time, the weld is small and beautiful, and it is not easy to have water leakage problems, resulting in a high product compliance rate.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A laser welding fixture, characterized in that, It includes a first rotating mechanism, a second rotating mechanism, a base, a driving component, a first pipe clamping mechanism, and a second pipe clamping mechanism; The first rotating mechanism and the second rotating mechanism are mounted opposite each other and spaced apart on the base. They are respectively provided with a first transmission shaft and a second transmission shaft that are coaxial and rotatably mounted. The driving component drives the first transmission shaft and the second transmission shaft to rotate synchronously. The first pipe clamping mechanism is mounted on the first drive shaft and is driven to rotate by the first drive shaft. The first pipe clamping mechanism is provided with a first pipe clamping component. The second pipe clamping mechanism is mounted on the second drive shaft and is driven to rotate by the second drive shaft. The second pipe clamping mechanism is provided with a second pipe clamping component. The first pipe clamp and the second pipe clamp are close to each other, and the two pipes to be processed, clamped by the first pipe clamp and the second pipe clamp, cross and abut against each other.

2. The laser welding fixture according to claim 1, characterized in that, Both the first rotating mechanism and the second rotating mechanism include a vertical plate, and the first transmission shaft and the second transmission shaft are rotatably mounted on the two vertical plates through bearings and bearing seats, respectively.

3. The laser welding fixture according to claim 2, characterized in that, The driving component is a servo motor, which is mounted on the first rotating mechanism, the second rotating mechanism, or the base via a servo mount. The servo motor synchronously drives the second transmission shaft and the second transmission shaft.

4. The laser welding fixture according to claim 3, characterized in that, The drive unit also includes a main drive shaft and two sets of synchronous pulleys and synchronous belts. The two ends of the main drive shaft are rotatably mounted on two vertical plates through bearings and bearing seats, and are driven to rotate by the servo motor through a reducer and a coupling. The two ends of the main drive shaft respectively drive the first drive shaft and the second drive shaft to rotate through a set of synchronous pulleys and synchronous belts.

5. The laser welding fixture according to claim 4, characterized in that, Both the first and second rotating mechanisms are equipped with tensioning wheels.

6. The laser welding fixture according to claim 5, characterized in that, The timing pulley, timing belt, and tensioning pulley are all located on the outward-facing side of the vertical plate.

7. The laser welding fixture according to claim 1, characterized in that, The first pipe clamping mechanism includes a support plate, a shaft clamp cover, a positioning shaft mounting plate, and a positioning shaft. One end of the support plate is provided with a semi-circular shaft hole, and the bottom of the shaft clamp cover is also provided with a semi-circular shaft hole. The support plate and the shaft clamp cover are assembled together and clamp the first drive shaft through the two semi-circular shaft holes. One end of the positioning shaft mounting plate is vertically mounted on the other end of the support plate, and the other end points towards the second rotating mechanism. The positioning shaft is mounted on the end of the positioning shaft mounting plate facing the first drive shaft.

8. The laser welding fixture according to claim 1, characterized in that, The second pipe clamping mechanism includes a slip ring, a cylinder mounting plate, and a clamping cylinder. The slip ring is sleeved on the end of the second drive shaft. The clamping cylinder is mounted on the end of the slip ring via the cylinder mounting plate. The clamping cylinder includes a pair of jaws and is connected to an air source via the slip ring.

9. A laser welding fixture according to claim 8, characterized in that, The ends of the two grippers are equipped with a pair of opposing flat tube clamping molds. A flat mold arm seat is installed on the top of the clamping cylinder. The two ends of the flat mold arm seat are provided with parallel and opposing flat mold arms. A flat tube flat mold is installed between the two flat mold arms. The top surface of the flat tube flat mold slopes downward and connects to the channel between the two flat tube clamping molds.

10. A laser welding fixture according to claim 8, characterized in that, The air inlet pipe of the air slip ring is connected to the air source via a manual air valve.

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