Clamp for welding inclined bent pipe

Abstract

The utility model provides a clamp for welding inclined bent pipes, which relates to the field of welding clamps for inclined bent pipes and comprises a first synchronizing unit arranged at the top of a positioner, a second synchronizing unit arranged at the top of the first synchronizing unit and a clamping component arranged between the second synchronizing unit and the first synchronizing unit. By means of the design of the clamping blocks and the screws, bent pipes can be clamped and positioned, the bent pipes at the two ends can be positioned and clamped at the same time through the arrangement of the two containing bases, the spot welding process in advance is omitted, the later welding efficiency can be improved, a power source can be provided for the first synchronous unit and the second synchronous unit through the positioner, and the welding efficiency is improved. The first synchronous unit and the second synchronous unit can drive the clamping assembly and the bent pipe to rotate at the same time, in the rotating process, a laser beam of the laser welding machine irradiates a connecting seam of the bent pipe, efficient and accurate welding is achieved, and the welding quality and efficiency are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of welding fixtures for inclined bend pipes, specifically a fixture for welding inclined bend pipes. Background Technology

[0002] In industrial production, the welding of inclined bends is a common process, widely used in automobile manufacturing, aerospace, petrochemical and other fields. Due to the special shape of the inclined bend, a fixture is used for positioning during welding to ensure the stability and accuracy of the bend during the welding process, thereby improving the welding quality.

[0003] Currently, in the welding operation of inclined bend pipes, the two bend pipes are first initially connected by spot welding technology, which can fix the two bend pipes together in a short time. Then, one end of the spot-welded bend pipe is placed in the inner cavity of the fixture. The fixture is designed with a clamping surface that matches the shape of the bend pipe, which can closely fit the surface of the bend pipe and ensure that the bend pipe will not move or deform during the welding process. Then, by adjusting the clamping force and position of the fixture, the bend pipe can be accurately positioned. After positioning, laser welding equipment is used to laser weld the connection between the two bend pipes, thereby realizing the welding operation of the inclined bend pipe.

[0004] However, in existing technologies such as Figure 6 As shown, during the welding process, since the fixture cannot simultaneously position the two ends of the bend, it is necessary to spot weld the two ends of the bend before welding. This step increases the complexity and tediousness of the welding operation, thereby reducing the welding efficiency.

[0005] In summary, this utility model provides a fixture for welding obliquely bent pipes to solve the above problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A clamp for welding obliquely bent pipes, used in laser welding machines and positioners, including...

[0008] A first synchronization unit disposed on the top of the positioner, a second synchronization unit disposed on the top of the first synchronization unit, and a clamping assembly disposed between the second synchronization unit and the first synchronization unit;

[0009] The first synchronization unit includes a first housing, first synchronization wheels movably connected to both sides of the inner cavity of the first housing via bearings, a first synchronization belt drivingly connected to the surfaces of the two first synchronization wheels, a drive shaft fixedly connected to the inner cavity of the right first synchronization wheel, and a connecting rod fixedly connected to the top of the left first synchronization wheel.

[0010] The second synchronization unit includes a second housing, a second synchronization wheel movably connected to both sides of the inner cavity of the second housing via bearings, a second synchronization belt drivingly connected to the surfaces of the two second synchronization wheels, and a connecting frame fixedly connected to the bottom of the left second synchronization wheel;

[0011] The clamping assembly includes two placement seats, a clamping block movably connected to the inner cavity of the placement seats, and a screw movably connected to one side of the clamping block via a bearing.

[0012] Furthermore, in this utility model, a support cylinder is fixedly connected between the second cover and the first cover, and the top of the drive shaft passes through the first cover and extends into the inner cavity of the support cylinder, and is movably connected to the inner cavity of the support cylinder.

[0013] Furthermore, in this utility model, the top of the connecting rod penetrates the inner cavity of the first cover and is fixedly connected to the lower placement seat, and the bottom of the connecting frame penetrates the inner cavity of the second cover and is fixedly connected to the upper placement seat.

[0014] Furthermore, in this utility model, one end of the screw penetrates the inner cavity of the placement seat and extends to the outside of the placement seat and is fixedly connected to a knob. The screw is threadedly connected to the placement seat, and one side of the clamping block and the inner wall of the placement seat are in contact with the bent tube.

[0015] Furthermore, in this utility model, a support plate is fixedly connected to one side of the bottom of the first cover, and the bottom of the transmission shaft extends through to the outside of the first cover and is connected to the positioner.

[0016] Furthermore, in this invention, the laser welding machine includes a laser generator, and the emitting end of the laser generator is aligned with the connecting seam of the two bent pipes.

[0017] Beneficial effects: This utility model has the following beneficial effects:

[0018] This invention utilizes the design of clamping blocks and screws in the clamping assembly to clamp and position the bent pipe. Furthermore, by providing two placement seats, both ends of the bent pipe can be simultaneously positioned and clamped, eliminating the need for pre-tack welding and improving subsequent welding efficiency. The positioner provides a power source for the first and second synchronization units, enabling them to simultaneously drive the clamping assembly and the bent pipe to rotate. During rotation, the laser beam from the laser welding machine irradiates the joint of the bent pipe, allowing for rapid welding of the joint through rotation. This achieves efficient and precise welding, effectively improving welding quality and efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the first cover, the support cylinder, and the second cover of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the second cover and the first cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure of the placement base, clamping block and screw of this utility model;

[0024] Figure 6 This is a schematic diagram of existing technology.

[0025] In the picture:

[0026] 100. Laser welding machine; 200. Positioner; 300. First synchronization unit; 310. First cover; 320. First synchronization pulley; 330. First synchronization belt; 340. Drive shaft; 341. Support cylinder; 350. Connecting rod; 400. Second synchronization unit; 410. Second cover; 420. Second synchronization pulley; 430. Second synchronization belt; 440. Connecting frame; 500. Clamping assembly; 510. Placement seat; 520. Clamping block; 530. Screw. Detailed Implementation

[0027] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0028] Example 1

[0029] like Figure 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides a clamp for welding obliquely bent pipes, used in a laser welding machine 100 and a positioner 200, including...

[0030] A first synchronization unit 300 is disposed on the top of the positioner 200, a second synchronization unit 400 is disposed on the top of the first synchronization unit 300, and a clamping assembly 500 is disposed between the second synchronization unit 400 and the first synchronization unit 300.

[0031] The first synchronization unit 300 includes a first housing 310, first synchronization pulleys 320 movably connected to both sides of the inner cavity of the first housing 310 via bearings, a first synchronization belt 330 drivingly connected to the surfaces of the two first synchronization pulleys 320, a drive shaft 340 fixedly connected to the inner cavity of the right first synchronization pulley 320, and a connecting rod 350 fixedly connected to the top of the left first synchronization pulley 320.

[0032] The second synchronization unit 400 includes a second housing 410, a second synchronization wheel 420 movably connected to both sides of the inner cavity of the second housing 410 via bearings, a second synchronization belt 430 drivingly connected to the surfaces of the two second synchronization wheels 420, and a connecting frame 440 fixedly connected to the bottom of the left second synchronization wheel 420.

[0033] The clamping assembly 500 includes two placement seats 510, a clamping block 520 movably connected to the inner cavity of the placement seat 510, and a screw 530 movably connected to one side of the clamping block 520 via a bearing.

[0034] like Figure 1-5 As shown, the two ends of the bent pipe are placed in the inner cavities of the two placement seats 510, with one end of the two bent pipes in contact. The rotation of the screw 530 drives the clamping block 520 to move to one side to contact the bent pipe, thereby achieving simultaneous positioning and clamping of both ends of the bent pipe. This saves the pre-tack welding process and improves the efficiency of subsequent welding. The positioner 200 drives the drive shaft 340 to rotate, causing the drive shaft 340 to drive the first synchronous pulley 320 and the second synchronous pulley 420 on the right side to rotate synchronously. Simultaneously, the first synchronous belt 330 and the second synchronous belt 430 can drive the first synchronous pulley 320 and the second synchronous pulley 420 on the left to rotate, thereby driving the connecting rod 350 and the connecting frame 440 to rotate. The connecting rod 350 and the connecting frame 440 drive the clamping assembly 500 and the bent pipe to rotate. During the rotation, the laser beam of the laser welding machine 100 irradiates the joint of the bent pipe. Through the rotation of the bent pipe, the laser welding machine 100 can quickly weld the joint of the bent pipe, thereby achieving efficient and precise welding and effectively improving the welding quality and efficiency.

[0035] Example 2

[0036] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] In this embodiment, a support cylinder 341 is fixedly connected between the second cover 410 and the first cover 310. The top of the drive shaft 340 passes through the first cover 310 and extends into the inner cavity of the support cylinder 341, and is movably connected to the inner cavity of the support cylinder 341.

[0038] The top of the connecting rod 350 passes through the inner cavity of the first cover 310 and is fixedly connected to the lower placement seat 510, and the bottom of the connecting bracket 440 passes through the inner cavity of the second cover 410 and is fixedly connected to the upper placement seat 510.

[0039] like Figure 1-3 As shown, the support cylinder 341 is fixedly connected between the second cover 410 and the first cover 310, and the drive shaft 340 is located in its inner cavity, thus providing a stable support for the second cover 410 and protecting the drive shaft 340 to ensure its safety during operation. The connection between the connecting rod 350 and the connecting frame 440 and the clamping assembly 500 ensures that the clamping assembly 500 can move synchronously with the operation of the first synchronization unit 300 and the second synchronization unit 400, thereby improving the synchronization and coordination of the clamp.

[0040] Example 3

[0041] Reference Figure 1 , 3 4 and 5 are the third embodiment of this utility model, which is based on the first two embodiments.

[0042] In this embodiment, one end of the screw 530 passes through the inner cavity of the placement seat 510 and extends to the outside of the placement seat 510 and is fixedly connected to a knob. The screw 530 is threadedly connected to the placement seat 510, and one side of the clamping block 520 and the inner wall of the placement seat 510 are in contact with the bent tube.

[0043] A support plate is fixedly connected to one side of the bottom of the first cover 310, and the bottom of the drive shaft 340 extends through to the outside of the first cover 310 and is connected to the positioner 200.

[0044] The laser welding machine 100 includes a laser generator, and the emitting end of the laser generator is aligned with the joint of the two bent pipes.

[0045] like Figure 1 , 3As shown in Figures 4 and 5, the screw 530 can be rotated by a knob, and the screw 530 is threadedly connected to the placement seat 510, allowing the clamping block 520 to be precisely moved and adjusted by rotating the knob. The support plate can support the first cover 310 and prevent displacement of the first cover 310. The drive shaft 340 is connected to the positioner 200, which facilitates the positioner 200 to transmit rotational power to the drive shaft 340, providing a power source for the rotation of the drive shaft 340. The laser welding machine 100 includes a laser generator, and the emitting end of the laser generator is aligned with the joint of the two bent pipes. This design ensures that the laser beam can accurately irradiate the joint of the bent pipes, achieving efficient and precise welding.

[0046] In use, firstly, place the two obliquely bent pipes to be welded into the inner cavities of the two placement seats 510 in the clamping assembly 500, so that the bent pipes contact the arc-shaped inner wall of the placement seat 510 and the other ends of the two obliquely bent pipes contact each other. Then, adjust the screw 530 by turning the knob. Since the screw 530 is threadedly connected to the placement seat 510, when the screw 530 rotates, it can drive the clamping block 520 to approach and clamp the bent pipes, while simultaneously positioning and clamping the two bent pipes at both ends. This eliminates the spot welding connection step required before traditional welding, simplifies the welding process, and improves the efficiency of subsequent welding. Afterwards, the positioner 200 can drive the drive shaft 340 to rotate, causing the drive shaft 340 to drive the first right side... Synchronous pulleys 320 and 420 rotate synchronously. Simultaneously, the rotation of the first and second synchronous pulleys 320 and 420 on the right side drives the rotation of the first and second synchronous pulleys 320 and 420 on the left side via the first and second synchronous belts 330 and 430. This, in turn, drives the connecting rod 350 and connecting frame 440 to rotate. The connecting rod 350 and connecting frame 440 then drive the clamping assembly 500 and the bent pipe to rotate. During this rotation, the laser beam from the laser welding machine 100 irradiates the joint of the bent pipe. The rotation of the bent pipe allows the laser welding machine 100 to quickly weld the joint, achieving efficient and precise welding and effectively improving welding quality and efficiency.

[0047] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A clamp for welding obliquely bent pipes, used in a laser welding machine (100) and a positioner (200), characterized in that: include: A first synchronization unit (300) disposed on the top of the positioner (200), a second synchronization unit (400) disposed on the top of the first synchronization unit (300), and a clamping assembly (500) disposed between the second synchronization unit (400) and the first synchronization unit (300); The first synchronization unit (300) includes a first housing (310), a first synchronization wheel (320) movably connected to both sides of the inner cavity of the first housing (310) via bearings, a first synchronization belt (330) drivingly connected to the surfaces of the two first synchronization wheels (320), a drive shaft (340) fixedly connected to the inner cavity of the right first synchronization wheel (320), and a connecting rod (350) fixedly connected to the top of the left first synchronization wheel (320). The second synchronization unit (400) includes a second housing (410), a second synchronization wheel (420) movably connected to both sides of the inner cavity of the second housing (410) via bearings, a second synchronization belt (430) drivingly connected to the surfaces of the two second synchronization wheels (420), and a connecting frame (440) fixedly connected to the bottom of the left second synchronization wheel (420). The clamping assembly (500) includes two placement seats (510), a clamping block (520) movably connected to the inner cavity of the placement seats (510), and a screw (530) movably connected to one side of the clamping block (520) via a bearing.

2. The clamp for welding obliquely bent pipes as described in claim 1, characterized in that: A support cylinder (341) is fixedly connected between the second cover (410) and the first cover (310). The top of the drive shaft (340) passes through the first cover (310) and extends into the inner cavity of the support cylinder (341), and is movably connected to the inner cavity of the support cylinder (341).

3. The clamp for welding obliquely bent pipes as described in claim 1, characterized in that: The top of the connecting rod (350) passes through the inner cavity of the first cover (310) and is fixedly connected to the lower placement seat (510), and the bottom of the connecting frame (440) passes through the inner cavity of the second cover (410) and is fixedly connected to the upper placement seat (510).

4. The clamp for welding obliquely bent pipes as described in claim 1, characterized in that: One end of the screw (530) passes through the inner cavity of the placement seat (510) and extends to the outside of the placement seat (510) and is fixedly connected to a knob. The screw (530) is threadedly connected to the placement seat (510). One side of the clamping block (520) and the inner wall of the placement seat (510) are in contact with the bent tube.

5. The clamp for welding obliquely bent pipes as described in claim 1, characterized in that: A support plate is fixedly connected to one side of the bottom of the first cover (310), and the bottom of the drive shaft (340) extends through to the outside of the first cover (310) and is connected to the positioner (200).

6. The clamp for welding obliquely bent pipes as described in claim 1, characterized in that: The laser welding machine (100) includes a laser generator, and the emitting end of the laser generator is aligned with the joint of the two bent pipes.

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