Metal pipeline brazing pre-positioning device

Abstract

The utility model relates to a metal pipeline brazing pre-positioning device which comprises a rack, a laser welding head and two clamping assemblies, the laser welding head is movably connected to the rack, a first sliding seat and a second sliding seat are slidably connected to the rack, and the sliding directions of the first sliding seat and the second sliding seat are opposite; the two clamping assemblies are arranged on the first sliding base or the second sliding base correspondingly, a placement base is detachably connected to the first sliding base, and when the clamping assemblies on the first sliding base clamp the end of the metal pipe, the tail of the metal pipe abuts against the placement base. When the first sliding seat and the second sliding seat slide to limit positions towards the opposite sides, the metal pipeline clamped on the first sliding seat is matched with the flange part clamped on the second sliding seat, so that the possibility that the metal pipeline and the flange part are not coaxial is reduced, spot welding is carried out on the metal pipeline and the flange part through a laser welding head, and then the metal pipeline and the flange part are welded. Pre-positioning of a metal pipeline and a flange part is achieved, and subsequent brazing of a product is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal pipeline manufacturing technical field, in particular to a kind of metal pipeline brazing pre-positioning device. BACKGROUND

[0002] With the rapid development of China's automotive industry, the design diversification of automotive pipeline gradually becomes the development trend of the industry, and the continuous change of requirements of vehicle enterprises makes the improvement of various tooling, mould of pipeline production plant, the iteration update speed of process greatly improves, and also brings opportunity for product processing, manufacturing speed, quality improvement.

[0003] Currently, metal pipe and flange type parts need to go through a pre-positioning process before brazing, and currently, the pre-positioning is mostly carried out by resistance welding and argon arc welding spot welding. Resistance welding is prone to spot welding breakdown and metal splashing due to large instantaneous current during welding. Traditional argon arc welding requires high operation skill of workers, consumes argon gas, and has high labor cost and product cost. In addition, there is a risk of breakdown during welding, which makes it difficult to ensure the quality of subsequent brazing. UTILITY MODEL CONTENT

[0004] In order to facilitate subsequent brazing of products, the present application provides a kind of metal pipeline brazing pre-positioning device.

[0005] The metal pipeline brazing pre-positioning device provided by the present application adopts the following technical solution:

[0006] A metal pipeline brazing pre-positioning device includes a rack, a laser welding head, and two sets of clamping assemblies. The laser welding head is movably connected to the rack. The rack has a first sliding seat and a second sliding seat connected thereto by sliding. The sliding directions of the first sliding seat and the second sliding seat are opposite. The two sets of clamping assemblies are arranged on the first sliding seat or the second sliding seat. The first sliding seat is detachably connected to a mounting seat. When the clamping assembly on the first sliding seat clamps the end of the metal pipe, the tail of the metal pipe abuts against the mounting seat.

[0007] By adopting the above technical solution, when the first sliding seat and the second sliding seat slide to the limit position on the opposite side, the metal pipeline clamped on the first sliding seat and the flange part clamped on the second sliding seat are matched to reduce the possibility of misalignment of the metal pipeline and the flange part. Then, the laser welding head spot-welds the metal pipeline and the flange part to realize the pre-positioning of the metal pipeline and the flange part, which facilitates subsequent brazing of products.

[0008] Preferably, the "T" shaped rod is hingedly connected to one end of the first cylinder piston rod, and the laser welding head is arranged at the other end of the "T" shaped rod.

[0009] Through the above technical scheme, the "T" shaped rod is swung back and forth by the piston movement of the first cylinder piston rod, so that the laser welding head moves.

[0010] Preferably, the clamping assembly comprises a fixed seat, a plurality of clamping blocks and a second cylinder, the fixed seat is arranged on the first sliding seat or the second sliding seat, the plurality of clamping blocks are respectively slidably connected to the fixed seat in a direction perpendicular to the sliding direction of the first sliding seat, the plurality of clamping blocks are respectively provided with inclined rods, the inclined rods are respectively arranged through and slidably connected to the adjacent clamping blocks, and the second cylinder is fixedly connected to the fixed seat, and one end of the second cylinder piston rod is fixedly connected to any clamping block.

[0011] Through the above technical scheme, the second cylinder piston rod reciprocates to drive any clamping block to move back and forth, and the remaining clamping blocks are moved to the opposite side together through the arrangement of the inclined rods, so that the metal pipeline is clamped or loosened.

[0012] Preferably, a plurality of profiling pads are arranged, the plurality of profiling pads correspond to the plurality of clamping blocks respectively, and the plurality of profiling pads are respectively detachably connected to the corresponding clamping blocks, so that when the plurality of abutting blocks move to the opposite side, the plurality of profiling pads can abut on the metal pipe at the same time.

[0013] Through the above technical scheme, the clamping assembly can clamp the special-shaped curved pipeline through the arrangement of the profiling pads, so as to increase the versatility of the positioning device.

[0014] Preferably, the anti-skid lines are arranged on the side surface of the metal pipe where the plurality of profiling pads abut.

[0015] Through the above technical scheme, the anti-skid lines are arranged to reduce the possibility of the metal pipe sliding along the axis when the clamping blocks clamp the metal pipe or the metal pipe is connected to the flange part.

[0016] Preferably, the plurality of clamping blocks are respectively provided with insertion grooves, the plurality of profiling pads are respectively provided with abutting blocks which can be inserted and matched with the corresponding insertion grooves, and the plurality of clamping blocks are respectively rotatably connected to the abutting blocks, so that when the insertion grooves and the insertion blocks are inserted and matched, the abutting blocks can be rotated to abut on the insertion blocks.

[0017] By adopting the technical scheme, the profiled pad blocks are detachably connected to the clamping blocks through the plug-in cooperation of the plug-in blocks and the plug-in slots, and the abutting blocks are arranged, when the plug-in blocks are cooperated with the plug-in slots, the abutting blocks are rotated to abut on the plug-in blocks, the positions of the plug-in blocks are limited, and the possibility of displacement of the plug-in blocks is reduced; meanwhile, different groups of profiled pad blocks can be replaced conveniently.

[0018] Preferably, the cross sections of the plug-in slots on the clamping blocks are different.

[0019] By adopting the technical scheme, the possibility of position installation error during installation of the profiled pad blocks is reduced.

[0020] Preferably, two driving cylinders are arranged on the rack, and one end of the piston rods of the two driving cylinders is fixedly connected to the first sliding seat or the second sliding seat.

[0021] By adopting the technical scheme, the first sliding seat and the second sliding seat are driven to reciprocate through the piston movement of the piston rods of the two driving cylinders.

[0022] The technical effects of the utility model mainly embody in the following aspects:

[0023] 1. The first sliding seat, the second sliding seat and the clamping assembly are arranged, when the first sliding seat and the second sliding seat slide to the limit positions on the opposite sides, the metal pipeline clamped on the first sliding seat and the flange part clamped on the second sliding seat are cooperated, the off-axis possibility of the metal pipeline and the flange part is reduced, the metal pipeline and the flange part are spot-welded through the laser welding head, the pre-positioning of the metal pipeline and the flange part is realized, and the product is convenient for subsequent brazing;

[0024] 2. The profiled pad block is arranged, the clamping assembly can clamp the special-shaped curved pipeline, and the universality of the pre-positioning device is increased;

[0025] 3. The cross sections of the plug-in slots are different, the possibility of position installation error during installation of the profiled pad blocks is reduced. DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the embodiment of the application.

[0027] Figure 2 It is a first sliding seat structure schematic view of the embodiment of the application.

[0028] Figure 3 It is an enlarged view along Figure 2 A of the figure.

[0029] Figure 4 is a schematic view of a "T" shaped rod structure of an embodiment of the present application.

[0030] Figure 5 is a schematic view of a clamping assembly structure of an embodiment of the present application.

[0031] Legend: 1, frame; 11, first sliding seat; 12, second sliding seat; 13, drive cylinder; 2, laser welding head; 21, "T" shaped rod; 22, first cylinder; 3, clamping assembly; 31, fixed seat; 32, clamping block; 321, plug-in slot; 322, inclined rod; 33, second cylinder; 34, profiling pad; 341, plug-in block; 35, abutting block; 4, mounting seat. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be further described in detail to make the technical solution of the present application easier to understand and grasp.

[0033] The embodiment of the present application discloses a metal pipeline brazing pre-positioning device.

[0034] Referring to Figure 1 and Figure 2 , the metal pipeline brazing pre-positioning device of the embodiment comprises a frame 1, a laser welding head 2 and two groups of clamping assemblies 3, the laser welding head 2 is movably connected to the frame 1, the frame 1 is slidably connected with a first sliding seat 11 and a second sliding seat 12, the sliding directions of the first sliding seat 11 and the second sliding seat 12 are oppositely arranged, the two groups of clamping assemblies 3 are respectively installed on the first sliding seat 11 or the second sliding seat 12, the mounting seat 4 is detachably connected to the first sliding seat 11, the mounting seat 4 is connected to the frame 1 through bolts, when the clamping assembly 3 on the first sliding seat 11 clamps the end of the metal pipe, the tail of the metal pipe abuts against the mounting seat 4. Two drive cylinders 13 are fixedly connected to the frame 1, one end of the piston rod of each of the two drive cylinders 13 is fixedly connected to the first sliding seat 11 or the second sliding seat 12.

[0035] Referring to Figure 1 and Figure 2 , through the piston movement of the piston rod of the two drive cylinders 13, the first sliding seat 11 and the second sliding seat 12 are driven to reciprocate. When the first sliding seat 11 and the second sliding seat 12 slide to the limit positions on the opposite sides, the metal pipeline clamped on the first sliding seat 11 cooperates with the flange part clamped on the second sliding seat 12, so as to reduce the possibility of misalignment of the metal pipeline and the flange part, then the laser welding head 2 is used to spot weld the metal pipeline and the flange part, so as to realize the pre-positioning of the metal pipeline and the flange part, and facilitate the subsequent brazing of the product.

[0036] Referring to Figure 1 andFigure 4 Further comprising a "T" shaped rod 21, a first cylinder 22 is fixedly connected on the frame 1, a piston rod of the first cylinder 22 is hingedly connected on the "T" shaped rod 21 along a horizontal direction, one end of the "T" shaped rod 21 is hingedly connected on the frame 1 along a horizontal direction, and the laser welding head 2 is fixedly connected on the other end of the "T" shaped rod 21. Through the piston movement of the piston rod of the first cylinder 22, the "T" shaped rod 21 is driven to swing back and forth, so that the laser welding head 2 is moved.

[0037] With reference to Figure 3 and Figure 5 The clamping assembly 3 comprises a fixed seat 31, a plurality of clamping blocks 32 and a second cylinder 33, the fixed seat 31 is fixedly connected on the first sliding seat 11 or the second sliding seat 12, the fixed seats 31 on the first sliding seat 11 and the second sliding seat 12 are coaxially arranged, the plurality of clamping blocks 32 are respectively slidably connected on the fixed seat 31 along a direction perpendicular to the sliding direction of the first sliding seat 11, and the plurality of clamping blocks 32 are uniformly distributed around the central axis of the fixed seat 31, the plurality of clamping blocks 32 are respectively fixedly connected with inclined rods 322, the inclined rods 322 are respectively provided through and slidably connected on the adjacent clamping blocks 32, and the second cylinder 33 is fixedly connected on the fixed seat 31, one end of a piston rod of the second cylinder 33 is fixedly connected on any clamping block 32. Through the reciprocating movement of the piston rod of the second cylinder 33, any clamping block 32 is driven to move back and forth, and through the arrangement of the inclined rods 322, the remaining clamping blocks 32 are moved to the opposite or opposite side together, so that the metal pipeline is clamped or released.

[0038] With reference to Figure 3 and Figure 5 Further comprising a plurality of profiling pads 34, the plurality of profiling pads 34 correspond to the plurality of clamping blocks 32 respectively, the plurality of profiling pads 34 are respectively detachably connected on the corresponding clamping blocks 32, and the plurality of profiling pads 34 abut on the metal pipe side surface respectively provided with anti-skid lines. When the plurality of abutting blocks 35 move to the opposite side, the plurality of profiling pads 34 can abut on the metal pipe at the same time. Through the arrangement of the profiling pads 34, the clamping assembly 3 can clamp the special-shaped curved pipeline, so as to increase the versatility of the pre-positioning device. And through the arrangement of the anti-skid lines, the possibility of the metal pipe sliding along the axis when the clamping blocks 32 clamp the metal pipe or interface with the flange part is reduced, and the profiling pads 34 and the mounting seat 4 each have multiple groups to adapt to different models of metal pipes.

[0039] With reference to Figure 3 and Figure 5If a plurality of clamping blocks 32 are provided, a plurality of insertion grooves 321 are formed on each clamping block 32, a plurality of profiled pads 34 are provided, and a plurality of insertion blocks 341 are fixedly connected to each profiled pad 34 and can be inserted into the corresponding insertion groove 321. A plurality of abutting blocks 35 are rotatably connected to each clamping block 32. When the insertion block 341 is inserted into the insertion groove 321, the abutting block 35 can be rotated to abut against the insertion block 341. Through the insertion of the insertion block 341 into the insertion groove 321, the plurality of profiled pads 34 can be detachably connected to the plurality of clamping blocks 32. When the insertion block 341 is inserted into the insertion groove 321, the abutting block 35 is rotated to abut against the insertion block 341, thereby limiting the position of the insertion block 341 and reducing the possibility of displacement of the insertion block 341. At the same time, it is convenient to replace the profiled pads 34 of different groups. The cross sections of the insertion grooves 321 on the plurality of clamping blocks 32 are different. This plays a role in preventing mistakes and reduces the possibility of incorrect installation of the profiled pads 34.

[0040] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A metal tubing brazing pre-positioning device, characterized by: The utility model relates to a laser welding machine, including frame (1), laser welding head (2) and two groups of clamping components (3), laser welding head (2) swing joint is in frame (1), the first sliding seat (11) and the second sliding seat (12) are slidably connected on frame (1), the sliding direction of first sliding seat (11) and second sliding seat (12) is opposite setting, two groups clamping components (3) are arranged on first sliding seat (11) or second sliding seat (12) respectively, the detachable connection of setting seat (4) is established to first sliding seat (11), when the clamping component (3) on first sliding seat (11) is clamped to the end of metal pipe, the tail of metal pipe is butted on setting seat (4).

2. A metal tubing brazing pre-positioning device as defined in claim 1, wherein: Still include " T " shaped rod (21), the first cylinder (22) is equipped on frame (1), the piston rod one end of first cylinder (22) is hinged and connected in " T " shaped rod (21), one end of " T " shaped rod (21) is hinged and connected in frame (1), laser welding head (2) is arranged in the other end of " T " shaped rod (21).

3. A metal tubing brazing pre-positioning device as defined in claim 1, wherein: Clamping component (3) includes fixed seat (31), several clamping blocks (32) and second cylinder (33), fixed seat (31) is arranged on first sliding seat (11) or second sliding seat (12), several clamping blocks (32) are slidably connected on fixed seat (31) respectively along the sliding direction perpendicular to first sliding seat (11), several clamping blocks (32) are equipped with inclined rod (322) respectively, inclined rod (322) is slidably connected in adjacent clamping block (32) respectively, second cylinder (33) is fixedly connected in fixed seat (31), the piston rod one end of second cylinder (33) is fixedly connected in any clamping block (32).

4. A metal tubing brazing pre-positioning device as defined in claim 3, wherein: Still include several profiling pad blocks (34), several profiling pad blocks (34) are corresponded to several clamping blocks (32) respectively, several profiling pad blocks (34) are detachably connected on corresponding clamping block (32) respectively, when several abutting blocks (35) move towards opposite side, several profiling pad blocks (34) can be abutted on metal pipe simultaneously.

5. A metal tubing brazing pre-positioning device as defined in claim 4, wherein: Several profiling pad blocks (34) are abutted on the side surface on one side of metal pipe and are equipped with anti -skid lines respectively.

6. A metal tubing brazing pre-positioning device as defined in claim 4, wherein: Several clamping blocks (32) are respectively provided with insertion slot (321), several profiling pad blocks (34) are respectively provided with insertion block (341) that can be inserted with corresponding insertion block (341), several clamping blocks (32) are respectively rotatably connected with abutting block (35), when insertion block (341) is inserted with insertion slot (321), abutting block (35) can be rotated to abut on insertion block (341).

7. A metal tubing brazing pre-positioning device as defined in claim 6, wherein: The cross section of insertion slot (321) on several clamping blocks (32) is different.

8. A metal tubing brazing pre-positioning device as defined in claim 1, wherein: Two drive cylinders (13) are equipped on frame (1), the piston rod one end of two drive cylinders (13) is fixedly connected on first sliding seat (11) or second sliding seat (12) respectively.

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