Flat pipe arc necking device

Abstract

The utility model relates to a flat pipe arc necking device which comprises a base, a flat pipe is arranged on the base, a fixed plate is fixedly connected to one end of the base, a movable plate is arranged at the other end of the base in a sliding mode, necking blocks are arranged on the opposite surfaces of the fixed plate and the movable plate, and inserting grooves allowing the ends of the flat pipe to be inserted are formed in the necking blocks. The necking block is arranged on the base, the opening of the inserting groove is provided with a necking inclined face, the base is provided with a driving assembly for driving the movable plate to move towards the fixed plate, the necking block is pushed to move through the driving assembly, the end of the flat pipe is inserted into the necking block when the necking block moves, necking of the flat pipe can be achieved, and the flat pipe after necking is more convenient for workers to install the flat pipe on the main plate. The flat tube assembling device has the effect of improving the flat tube assembling efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of cooling tube processing, and in particular to a flat tube arc shrinking device. Background Art

[0002] The EGR cooler is a crucial component in a vehicle's exhaust gas recirculation system, used to cool exhaust gases and thereby reduce nitrogen oxide emissions. Before re-entering the intake system, exhaust gases first pass through the EGR cooler, which contains flat tubes through which exhaust gases flow while coolant flows outside. This heat exchange occurs between the exhaust gases and the coolant, absorbing the heat from the exhaust gases and thus cooling the exhaust gases.

[0003] During the production process of the EGR cooler, multiple flat tubes need to be installed on the main board. However, there are deviations in the ports of the flat tubes after processing and production. Workers need to repeatedly adjust and try during assembly before they can install the flat tubes at the assembly position on the main board. When assembling flat tubes in batches, a lot of assembly time will be consumed, and the assembly efficiency of the flat tubes becomes low, which is obviously insufficient. Utility Model Content

[0004] In order to improve the assembly efficiency of flat tubes, the present application provides a flat tube arc shrinking device.

[0005] The present application provides a flat tube arc shrinking device that adopts the following technical solution:

[0006] A flat tube circular arc shrinking device includes a base, a flat tube is arranged on the base, one end of the base is fixedly connected to a fixed plate, and the other end is slidably provided with a movable plate, and the opposite surfaces of the fixed plate and the movable plate are provided with shrinking blocks, the shrinking block is provided with a slot for inserting the end of the flat tube, and the opening of the slot is provided with a shrinking inclined surface, and the base is provided with a driving component for driving the movable plate to move toward the fixed plate.

[0007] By adopting the above technical solution, workers place the flat tube on the base and align the two ends of the flat tube with the slots, and then drive the movable plate toward the fixed plate through the driving assembly. During the movement of the movable plate, the two ends of the flat tube are gradually inserted into the slots, and the necking slope squeezes the flat tube to shrink the two ends of the flat tube. This setting realizes the necking treatment of the ends of the flat tube, improves the uniformity of the size of the ends of the flat tube, and reduces the adjustment time required for the flat tube due to dimensional errors during installation. At the same time, the shape of the necking plays a guiding role in the assembly of the flat tube, so that the flat tube can be installed more smoothly in the assembly position of the main board, thereby improving the efficiency of the flat tube assembly.

[0008] Optionally, the driving assembly includes a push plate fixedly connected to the movable plate, an oil cylinder is provided on the base, a piston rod of the oil cylinder is provided with a collision head, and the collision head abuts against the push plate.

[0009] By adopting the above technical solution, when shrinking, the cylinder is started, and the cylinder pushes the push plate toward the fixed plate through the impact head. The movement of the push plate drives the movable plate to move, and the movement of the movable plate drives the two shrinking blocks to shrink the two ends of the flat tube. At the same time, the movement distance of the movable plate is adjusted by precisely controlling the stroke of the cylinder to prevent the shrinking blocks from excessively squeezing the flat tube ends.

[0010] Optionally, a guide assembly is provided on the base, and the guide assembly includes a first mounting seat and a second mounting seat. The first mounting seat is provided with a guide column, and the push plate is fixed to the guide column through a tightening bolt. The first mounting seat is slidably connected to the base, and the second mounting seat is provided with a guide sleeve, and the guide column is slidably connected in the guide sleeve.

[0011] By adopting the above technical solution, the connection between the first mounting seat and the push plate is achieved through the guide column and the tightening bolt. When the oil cylinder pushes the push plate to move, the push plate drives the first mounting seat to move toward the second mounting seat. At the same time, the guide column slides in the guide sleeve. Under the limitation of the guide sleeve on the guide column, the push plate can only move along the axial direction of the guide column, thereby ensuring the accuracy of the moving direction of the movable plate and ensuring that the end of the flat tube can be smoothly squeezed by the necking bevel.

[0012] Optionally, a spring is provided on the first mounting seat, one end of the spring is fixedly connected to the first mounting seat, and the other end of the spring is fixedly connected to the second mounting seat.

[0013] By adopting the above technical solution, during the shrinking process, the first mounting seat moves toward the second mounting seat, the first mounting seat generates pressure on the spring, and the spring is compressed. When the shrinking process is completed, the piston rod of the cylinder retracts, and the thrust applied by the cylinder to the push plate disappears. The spring releases elastic potential energy and pushes the first mounting seat away from the second mounting seat. The movement of the first mounting seat drives the shrinking block on the movable plate to separate from the end of the flat tube, making it convenient for workers to remove the flat tube and place a new flat tube.

[0014] Optionally, a fixing seat is provided on the base, the fixing seat is arranged between the second mounting seat and the fixing plate, and a fixing component for fixing the flat tube is provided on the fixing seat.

[0015] By adopting the above technical solution, after the flat tube is placed on the fixing seat, the flat tube is fixed by the fixing assembly, which reduces the possibility of shaking or displacement of the flat tube during the shrinking process, thereby ensuring the accuracy of the shrinking size and shape, and improving the shrinking quality of each flat tube.

[0016] Optionally, the fixing assembly includes a plurality of fixing blocks arranged on the fixing seat, each of the plurality of fixing blocks is provided with a fixing groove, the outer surface of the flat tube abuts against the fixing groove, and the plurality of fixing blocks are evenly distributed along the length direction of the fixing seat.

[0017] By adopting the above technical solution, workers place the flat tube in the fixing groove during shrinking. The setting of multiple fixing blocks provides uniform support force for the flat tube, reducing the possibility of the flat tube shaking during shrinking. At the same time, the opening of the fixing groove can ensure that the flat tube is always fixed by the fixing block during shrinking, avoiding the occurrence of the flat tube detaching from the fixing block.

[0018] Optionally, the fixing assembly includes a bidirectional screw rod and a guide rod, and the bidirectional screw rod and the guide rod are respectively arranged at opposite ends of the fixing seat, and the bidirectional screw rod is rotatably arranged on the fixing seat. The bidirectional screw rod has a clamping plate threadedly connected to the rod body with opposite threads, and the clamping plate is slidably connected to the guide rod at one end away from the bidirectional screw rod, and the clamping plates are provided with a placement groove.

[0019] By adopting the above technical solution, when the size of the flat tube changes, the worker rotates the bidirectional screw, and the rotation of the bidirectional screw drives the two clamping plates to move in opposite or opposite directions. When the two straight edges of the flat tube abut against the side walls of the placement groove, the rotation of the bidirectional screw stops. This arrangement realizes the fixation of flat tubes of different specifications, thereby making the shrinking device suitable for shrinking flat tubes of different specifications, thereby improving the applicability of the shrinking device.

[0020] Optionally, the necking block is detachably connected to the fixed plate and the movable plate by bolts.

[0021] By adopting the above technical solution, when the necking block is damaged or flat tubes of different diameters need to be necked, workers can replace the necking block by disassembling and installing bolts, ensuring the smooth progress of the necking process and improving the adaptability of the necking device.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application provides a driving assembly and a necking block. The driving assembly drives the necking block to move. When the necking block moves, the end of the flat tube is inserted into the necking block, thereby achieving necking of the flat tube. The necked flat tube is more convenient for workers to install on the main board, thereby improving the assembly efficiency of the flat tube.

[0024] 2. This application sets a spring to automatically return the shrinking block to its original position, so as to avoid the next flat tube being blocked by the shrinking block when being installed, making it convenient for workers to remove the shrunken flat tube and place a new flat tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of Example 1 of the present application.

[0026] Figure 2 It is a cross-sectional view of the necking block in Example 1 of the present application.

[0027] Figure 3 It is a cross-sectional view of the first mounting seat and the second mounting seat in Example 1 of the present application.

[0028] Figure 4 It is a structural diagram of Example 2 of the present application.

[0029] Explanation of the accompanying drawings: 01, flat tube; 1, base; 2, fixing seat; 3, fixing assembly; 31, fixing block; 311, fixing groove; 32, clamping plate; 321, placement groove; 33, bidirectional screw rod; 34, guide rod; 4, fixing plate; 5, moving plate; 6, necking block; 61, slot; 62, necking slope; 7, driving assembly; 71, push plate; 72, oil cylinder; 73, impact head; 8, bolt; 9, guide assembly; 91, first mounting seat; 92, second mounting seat; 93, guide column; 94, tightening bolt; 95, connecting flange; 96, guide sleeve; 10, spring. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses a flat tube arc shrinking device.

[0032] Example 1

[0033] Reference Figure 1 A flat tube arc shrinking device includes a base 1, a fixing seat 2 is fixedly installed on the upper surface of the base 1, the length direction of the fixing seat 2 is parallel to the length direction of the base 1, a flat tube 01 to be processed is arranged on the fixing seat 2, and a fixing assembly 3 is arranged on the fixing seat 2. The fixing assembly 3 includes a plurality of fixing blocks 31 fixedly connected to the fixing seat 2, and the plurality of fixing blocks 31 are evenly distributed along the length direction of the fixing seat 2, and a fixing groove 311 is opened on the fixing block 31.

[0034] When shrinking the flat tube 01, the worker holds the flat tube 01 and places it in the fixing groove 311. Multiple fixing blocks 31 provide stable support for the flat tube 01. At the same time, under the restriction of the fixing groove 311, the flat tube 01 will not separate from the fixing block 31, thereby achieving fixation of the flat tube 01 during the shrinking process.

[0035] Reference Figure 1A fixed plate 4 is fixedly installed at one end of the base 1, and a movable plate 5 is slidably connected to the other end. The opposite end surfaces of the fixed plate 4 and the movable plate 5 are detachably connected to a necking block 6 by a bolt 8. The opposite end surfaces of the two necking blocks 6 are provided with a slot 61 for inserting the end of the flat tube 01. The inner wall of the slot 61 is matched with the shape of the side wall of the end of the flat tube 01. The opposite ends of the inner wall of the slot 61 are provided with a necking slope 62, which is used to neck the flat tube 01. A driving component 7 for driving the movable plate 5 to move toward the fixed plate 4 is provided on the base 1.

[0036] Reference Figure 1 and Figure 2 The driving assembly 7 includes a push plate 71, which is fixedly connected to the surface of the movable plate 5 facing away from the fixed plate 4. A cylinder 72 is fixedly installed on the base 1, and the end of the piston rod of the cylinder 72 is fixedly connected to a striker 73, which abuts against the end surface of the push plate 71 facing away from the movable plate 5.

[0037] The worker places the flat tube 01 on the fixed block 31, and makes the end of the flat tube 01 face the slot 61 of the two necking blocks 6. Then the cylinder 72 starts automatically, and the piston rod of the cylinder 72 drives the ram 73 to move toward the fixed plate 4. The movement of the ram 73 drives the push plate 71 to move, and the push plate 71 drives the movable plate 5 to move. In the process of movement of the movable plate 5, the necking slopes 62 at the ends of the two necking blocks 6 gradually approach the ends of the flat tube 01. The necking slopes 62 cause the two ends of the flat tube 01 to neck. This setting realizes the necking treatment of the ends of the flat tube 01, improves the uniformity of the size of the ends of the flat tube 01, and reduces the adjustment time required for the installation of the flat tube 01 due to dimensional errors. At the same time, the shape of the necking plays a guiding role in the assembly of the flat tube 01, so that the flat tube 01 can be more smoothly installed in the assembly position of the main board, thereby improving the efficiency of the assembly of the flat tube 01.

[0038] Reference Figure 1 and Figure 3 A guide assembly 9 is provided on the base 1, and the guide assembly 9 includes a first mounting seat 91 and a second mounting seat 92. The first mounting seat 91 is slidably connected to the side of the base 1 close to the cylinder 72, and the second mounting seat 92 is fixedly mounted on the base 1. Guide columns 93 are bolted at opposite ends of the first mounting seat 91, and the push plate 71 is fixed to the guide columns 93 by tightening bolts 94. The second mounting seat 92 is detachably connected to a guide sleeve 96 corresponding to the two guide columns 93 through a connecting flange 95, and the guide column 93 is slidably connected to the corresponding guide sleeve 96.

[0039] Under the connection of the tightening bolt 94, the first mounting seat 91 moves with the movement of the push plate 71. The movement of the first mounting seat 91 drives the guide column 93 to slide in the guide sleeve 96. Under the limitation of the guide sleeve 96 on the guide column 93, the first mounting seat 91 can only move along the axial direction of the guide column 93, thereby ensuring the accuracy of the moving direction of the push plate 71 and the movable plate 5, and ensuring that the end of the flat tube 01 can be smoothly squeezed by the necking bevel 62.

[0040] Reference Figure 1 and Figure 3 In order to realize the automatic reset of the necking block 6 on the movable plate 5, a spring 10 is provided on the first mounting seat 91. One end of the spring 10 is fixedly connected to the first mounting seat 91, and the other end is fixedly connected to the second mounting seat 92. When the necking is completed, the first mounting seat 91 moves toward the second mounting seat 92, and the first mounting seat 91 squeezes the spring 10 to compress it. After the necking is completed, the cylinder 72 resets to eliminate the thrust exerted on the push plate 71, and the spring 10 resets and pushes the push plate 71 to reset, thereby separating the necking block 6 from the end of the flat tube 01, making it convenient for workers to remove the flat tube 01 and place a new flat tube 01.

[0041] The implementation of a flat tube arc shrinking device in Example 1 of the present application is as follows: the oil cylinder 72 is started, and the piston rod of the oil cylinder 72 drives the impact head 73 to move toward the fixed plate 4. The movement of the impact head 73 drives the push plate 71 to move, and the push plate 71 drives the movable plate 5 to move. During the movement of the movable plate 5, the shrinking inclined surfaces 62 at the ends of the two shrinking blocks 6 gradually approach the ends of the flat tube 01. The shrinking inclined surfaces 62 shrink the two ends of the flat tube 01. Such a setting realizes the shrinking treatment of the ends of the flat tube 01, improves the uniformity of the dimensions of the ends of the flat tube 01, and reduces the adjustment time required for the flat tube 01 due to dimensional errors during installation. At the same time, the shape of the shrinkage plays a guiding role in the assembly of the flat tube 01, so that the flat tube 01 can be more smoothly installed in the assembly position of the main board, thereby improving the efficiency of the assembly of the flat tube 01.

[0042] Example 2

[0043] Reference Figure 4 The difference between Example 2 and Example 1 is that the fixing assembly 3 includes two clamping plates 32, the length directions of the two clamping plates 32 are parallel to the length direction of the fixing base 2, and a placement groove 321 is provided on each clamping plate 32. A bidirectional screw rod 33 and a guide rod 34 are respectively provided at both ends of the fixing base 2. The length directions of the bidirectional screw rod 33 and the guide rod 34 are perpendicular to the length direction of the fixing base 2. The bidirectional screw rod 33 is rotatably set on the surface of the fixing base 2, and the guide rod 34 is fixedly connected to the fixing base 2. One end of the two clamping plates 32 is respectively threadedly connected to the two sections of the rod body with opposite threads of the bidirectional screw rod 33, and the other end is slidably connected to the guide rod 34. One end of the bidirectional screw rod 33 is fixedly connected to a handwheel.

[0044] The implementation principle of Example 2 is: when the specifications of the flat tube 01 that needs to be shrunken change, the worker rotates the bidirectional screw 33, and the rotation of the bidirectional screw 33 drives the two clamping plates 32 to move in opposite or opposite directions. When the two straight edges of the flat tube 01 abut against the side walls of the placement groove 321, the rotation of the bidirectional screw 33 is stopped. This setting realizes the fixation of flat tubes 01 of different specifications, and then makes the shrinking device suitable for shrinking flat tubes 01 of different specifications, thereby improving the applicability of the shrinking device.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A flat tube arc shrinking device, comprising a base (1), on which a flat tube (01) is arranged, characterized in that: One end of the base (1) is fixedly connected to a fixed plate (4), and the other end is slidably provided with a movable plate (5). The surfaces opposite to each other of the fixed plate (4) and the movable plate (5) are both provided with a necking block (6). The necking block (6) is provided with a slot (61) for inserting the end of the flat tube (01). The opening of the slot (61) is provided with a necking inclined surface (62). The base (1) is provided with a driving component (7) for driving the movable plate (5) to move toward the fixed plate (4).

2. The arc necking device for flat tubes according to claim 1, characterized in that: The driving assembly (7) comprises a push plate (71) fixedly connected to the movable plate (5); an oil cylinder (72) is provided on the base (1); a piston rod of the oil cylinder (72) is provided with a striker (73); and the striker (73) abuts against the push plate (71).

3. The arc necking device for flat tubes according to claim 2, characterized in that: The base (1) is provided with a guide assembly (9), and the guide assembly (9) includes a first mounting seat (91) and a second mounting seat (92). The first mounting seat (91) is provided with a guide column (93), and the push plate (71) is fixed to the guide column (93) through a tightening bolt (94). The first mounting seat (91) is slidably connected to the base (1), and the second mounting seat (92) is provided with a guide sleeve (96), and the guide column (93) is slidably connected in the guide sleeve (96).

4. The arc necking device for flat tubes according to claim 3, characterized in that: A spring (10) is provided on the first mounting seat (91), one end of the spring (10) is fixedly connected to the first mounting seat (91), and the other end is connected to the second mounting seat (92).

5. The arc necking device for flat tubes according to claim 3, characterized in that: A fixing seat (2) is provided on the base (1), the fixing seat (2) is provided between the second mounting seat (92) and the fixing plate (4), and a fixing assembly (3) for fixing the flat tube (01) is provided on the fixing seat (2).

6. The arc necking device for flat tubes according to claim 5, characterized in that: The fixing assembly (3) comprises a plurality of fixing blocks (31) arranged on the fixing seat (2), each of the plurality of fixing blocks (31) being provided with a fixing groove (311), the outer surface of the flat tube (01) being in contact with the fixing groove (311), and the plurality of fixing blocks (31) being evenly distributed along the length direction of the fixing seat (2).

7. The arc necking device for flat tubes according to claim 5, characterized in that: The fixing assembly (3) includes a bidirectional screw rod (33) and a guide rod (34). The bidirectional screw rod (33) and the guide rod (34) are respectively arranged at opposite ends of the fixing seat (2). The bidirectional screw rod (33) is rotatably arranged on the fixing seat (2). The rod body of the bidirectional screw rod (33) with opposite screw threads is threadedly connected with a clamping plate (32). The clamping plate (32) is slidably connected to the guide rod (34) at one end away from the bidirectional screw rod (33). The clamping plate (32) is provided with a placement groove (321).

8. The arc necking device for flat tubes according to claim 1, characterized in that: The necking block (6) is detachably connected to the fixed plate (4) and the movable plate (5) via bolts (8).

Images