Riveting device for elbow water pipe of oil cooler

Abstract

The utility model discloses an oil cooler elbow water pipe riveting device, relates to the field of elbow water pipe riveting equipment, aims to solve the problems that gaps exist between the roots of elbow water pipes and a pressing plate and two groups of elbow water pipes cannot be riveted at the same time in the riveting process in the prior art, and adopts the technical scheme that the oil cooler elbow water pipe riveting device comprises an upper template and a lower template, limiting columns are arranged on the opposite faces of the upper die plate and the lower die plate and correspond to each other in position. A supporting assembly for a workpiece is further arranged on the lower die plate, and a clamp for limiting the workpiece is further arranged on the lower die plate; the first supporting block and the second supporting block are arranged on the lower die plate, two sets of elbow water pipes on a workpiece can be supported respectively, and the elbow water pipes are limited in cooperation with a clamp, so that the elbow water pipes on the workpiece can be conveniently and rapidly fixed. The problems that in the riveting process, gaps exist between the roots of the elbow water pipes and the pressing plate, and the two elbow water pipes cannot be riveted at the same time are solved, and meanwhile the riveting efficiency is improved by 50%.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow water pipe riveting equipment, in particular to an elbow water pipe riveting device for an oil cooler. Background Technique

[0002] The pressing plate assembly of the oil cooler is composed of 2 elbow water pipes and 2 flanged solder tabs riveted to 1 pressing plate. Such products are sensitive to the riveting gap. Otherwise, there will be a phenomenon of virtual soldering at the root of the elbow water pipe during welding. Therefore, there should be no gap after riveting the root of the elbow water pipe to the pressing plate. However, due to the special structure of the elbow water pipe, the end of the elbow water pipe needs to be given way when taking and placing parts, and it cannot be fully supported at the root of the elbow water pipe. If only half of the root is supported, the root of the elbow water pipe will bear a large riveting force during the riveting process, and there will be a gap between the unsupported part and the pressing plate, which will cause virtual soldering during welding and form a defective weld. Moreover, the included angle between the 2 elbow water pipes of this assembly is 165°, and the parts cannot be taken after riveting at one station. The utility model solves the problems that the root of the elbow water pipe cannot be fully supported and there is a gap with the pressing plate, and the 2 elbow water pipes cannot be riveted simultaneously. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an elbow water pipe riveting device for an oil cooler, which can effectively solve the problems in the background technique.

[0004] In order to achieve the above purpose, the utility model discloses an elbow water pipe riveting device for an oil cooler. The technical scheme adopted is that it includes an upper template and a lower template. Limiting columns are arranged on the opposite surfaces of the upper template and the lower template, and the positions correspond to each other. Guide columns are arranged on the lower template, and compression springs are sleeved on the guide columns. Guide sleeves corresponding to the positions of the guide columns and with matching dimensions are arranged on the upper template.

[0005] A support assembly for the workpiece is further arranged on the lower template. The support assembly includes a first support block and a second support block, and the first support block and the second support block respectively support the two groups of bent pipes on the workpiece during riveting.

[0006] A clamp for limiting the workpiece is further arranged on the lower template.

[0007] A riveting and pressing assembly corresponding to the positions of the first support block and the second support block is arranged on the upper template. By arranging the first support block and the second support block on the lower template, the two groups of elbow water pipes on the workpiece can be respectively supported, and the clamp is used to limit it, solving the problems that there is a gap between the root of the elbow water pipe and the pressing plate and the two elbow water pipes cannot be riveted simultaneously during the riveting process, and at the same time, the riveting efficiency is increased by 50%.

[0008] As a preferred technical solution of the present utility model, the support assembly further includes a positioning block and a support pin. The positioning block is used to support the bent pipe of the workpiece, and the support pin is used to support the pressing plate of the workpiece.

[0009] As a preferred technical solution of the present utility model, a support is connected to the driving end of the clamp. Limit blocks and sliding seats are respectively arranged on the upper and lower sides of the support. The limit blocks cooperate with the support assembly to limit the workpiece. A slide rail adapted to the sliding seat is further arranged on the lower template, and the slide rail guides the limit blocks.

[0010] As a preferred technical solution of the present utility model, there are two groups of limit posts and guide sleeves, which are arranged at the corners of the upper template and are staggered.

[0011] As a preferred technical solution of the present utility model, the riveting assembly includes a riveting head, a first unloading block and a second unloading block. The top of the riveting head is installed on the upper template. There are two groups of riveting heads. The first unloading block and the second unloading block are respectively installed at the bottoms of the two groups of riveting heads through cylindrical pins. A return spring is further arranged between the first unloading block and the second unloading block and the upper template. The first unloading block and the second unloading block respectively correspond to the first support block and the second support block in position. By adopting the cooperation of the unloading block, the return spring and the riveting head, before riveting the workpiece, preliminary positioning is carried out through the cooperation of the unloading block and the return spring to improve the riveting accuracy; after riveting is completed, the separation of the workpiece and the riveting head is realized through the re - cooperation of the unloading block and the return spring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: by arranging the first support block and the second support block on the lower template, the present utility model can respectively support two groups of elbow water pipes on the workpiece and cooperate with the clamp to limit them, solving the problems of gaps between the roots of the elbow water pipes and the pressing plate and the inability to rivet the two elbow water pipes simultaneously during the riveting process, and at the same time increasing the riveting efficiency by 50%.

[0013] In the present utility model, by adopting the cooperation of the unloading block, the return spring and the riveting head, before riveting the workpiece, preliminary positioning is carried out through the cooperation of the unloading block and the return spring to improve the riveting accuracy; after riveting is completed, the separation of the workpiece and the riveting head is realized through the re - cooperation of the unloading block and the return spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3Schematic diagram of the installation structure of the lower template of the present utility model;

[0017] Figure 4 Schematic diagram of the installation structure of the upper template of the present utility model;

[0018] Figure 5 Schematic diagram of the workpiece structure of the present utility model.

[0019] In the figure: 1. Upper template; 2. Lower template; 3. Clamp; 4. Limit post; 5. Guide post; 6. Compression spring; 7. Guide sleeve; 8. First unloading block; 9. Second unloading block; 10. First support block; 11. Second support block; 12. Support pin; 13. Workpiece; 14. Slide seat; 15. Support; 16. Slide rail; 17. Positioning block; 18. Limit block; 19. Riveting head; 20. Cylindrical pin; 21. Return spring. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0021] As Figures 1 to 5 shown, the present utility model discloses an oil cooler elbow water pipe riveting device. The technical solution adopted is that it includes an upper template 1 and a lower template 2. Limit posts 4 are provided on the opposite surfaces of the upper template 1 and the lower template 2, and the positions correspond to each other; A guide post 5 is provided on the lower template 2, and a compression spring 6 is sleeved on the guide post 5. A guide sleeve 7 corresponding to the position of the guide post 5 and having a matching size is provided on the upper template 1;

[0022] There are two groups of the limit posts 4 and the guide sleeves 7, which are arranged at the corners of the upper template 1 and are arranged staggeredly.

[0023] A support assembly for the workpiece 13 is further provided on the lower template 2. The support assembly includes a first support block 10 and a second support block 11. The first support block 10 and the second support block 11 respectively support the two groups of bent pipes on the workpiece 13 during riveting;

[0024] The support assembly further includes a positioning block 17 and a support pin 12. The positioning block 17 is used to support the bent pipes of the workpiece 13, and the support pin 12 is used to support the pressing plate of the workpiece 13. Under the action of the positioning block 17, the angle during the riveting of the two groups of elbow water pipes can also be limited, so that the included angle between the two groups of elbow water pipes is 165°.

[0025] The lower template 2 is further provided with a clamp 3 for limiting the workpiece 13; there are two groups of clamps 3, which correspond to the positions of the first support block 10 and the second support block 11 respectively, and cooperate with the first support block 10 and the second support block 11 to complete the clamping and limiting of the elbow water pipe.

[0026] A support 15 is connected to the driving end of the clamp 3. Limiting blocks 18 and sliding seats 14 are respectively arranged on the upper and lower sides of the support 15. The limiting block 18 cooperates with the support assembly to limit the workpiece 13. A slide rail 16 adapted to the sliding seat 14 is further arranged on the lower template 2, and the slide rail 16 plays a guiding role for the limiting block 18.

[0027] The upper template 1 is provided with a riveting component corresponding to the positions of the first support block 10 and the second support block 11.

[0028] The riveting component includes a riveting head 19, a first unloading block 8 and a second unloading block 9. The top of the riveting head 19 is installed on the upper template 1. There are two groups of riveting heads 19. The bottoms of the two groups of riveting heads 19 are respectively installed with the first unloading block 8 and the second unloading block 9 through a cylindrical pin 20. A return spring 21 is further arranged between the first unloading block 8 and the second unloading block 9 and the upper template 1. The first unloading block 8 and the second unloading block 9 respectively correspond to the positions of the first support block 10 and the second support block 11.

[0029] Working principle of the present utility model: During use, the two groups of elbow water pipes of the workpiece 13 are respectively placed on the first support block 10 and the second support block 11. Half of the area at the roots of the two groups of elbow water pipes is in contact with the first support block 10 and the second support block 11. At the same time, the positioning block 17 supports the two groups of elbow water pipes. The driving clamp 3 is driven, and its driving end drives the limiting block 18 to move towards the elbow water pipes through the support 15, and under the guidance of the slide seat 14 and the slide rail 16, the limiting block 18 supports and limits the remaining half of the area at the roots of the two groups of elbow water pipes; the pressure plate is placed on the first support block 10 and the second support block 11. At this time, the support pin 12 supports the pressure plate. The upper template 1 is controlled to move downward, driving the riveting head 19, the first unloading block 8 and the second unloading block 9 to move downward. The first unloading block 8 and the second unloading block 9 are in contact with the pressure plate. The upper template 1 continues to move downward. The first unloading block 8 and the second unloading block 9 slide along the riveting head 19 under the limitation of the cylindrical pin 20, and the first unloading block 8 and the second unloading block 9 squeeze the return spring 21, and the return spring 21 is compressed. At this time, the first unloading block 8 and the second unloading block 9 apply a downward force to the pressure plate under the elastic force of the return spring 21 for limiting the pressure plate. The riveting head 19 rivets the pressure plate and the elbow water pipes. After the riveting is completed, the upper template 1 resets, driving each component to reset. Under the action of the return spring 21, the first unloading block 8 and the second unloading block 9, the riveting head 19 is separated from the pressure plate smoothly, and one riveting operation is completed.

[0030] The circuit and mechanical connections involved in the present utility model are common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to well-known common sense.

[0031] The components not described in detail in this article are prior art.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An oil cooler elbow water pipe riveting device, characterized in that: It includes an upper template (1) and a lower template (2). Limiting columns (4) are provided on the facing surfaces of the upper template (1) and the lower template (2), and their positions correspond to each other. A guide post (5) is provided on the lower template (2), and a compression spring (6) is sleeved on the guide post (5). A guide sleeve (7) corresponding to the position of the guide post (5) and with a suitable size is provided on the upper template (1). A support assembly for the workpiece (13) is further provided on the lower template (2). The support assembly includes a first support block (10) and a second support block (11). The first support block (10) and the second support block (11) respectively support the workpiece (13) during the riveting of two groups of bent pipes on the workpiece (13). A clamp (3) for limiting the workpiece (13) is further provided on the lower template (2). A riveting assembly corresponding to the positions of the first support block (10) and the second support block (11) is provided on the upper template (1).

2. The riveting device for the oil cooler elbow water pipe according to claim 1, characterized in that: The support assembly further includes a positioning block (17) and a support pin (12). The positioning block (17) is used to support the bent pipe of the workpiece (13), and the support pin (12) is used to support the pressing plate of the workpiece (13).

3. The riveting device for the elbow water pipe of an oil cooler according to claim 1, wherein: A support (15) is connected to the driving end of the clamp (3). A limiting block (18) and a sliding seat (14) are respectively provided on the upper and lower sides of the support (15). The limiting block (18) cooperates with the support assembly to limit the workpiece (13). A slide rail (16) adapted to the sliding seat (14) is further provided on the lower template (2), and the slide rail (16) guides the limiting block (18).

4. A riveting device for an oil cooler elbow water pipe according to claim 1, characterized in that: There are two groups of the limiting columns (4) and the guide sleeves (7), which are arranged at the corners of the upper template (1) and are staggered.

5. The riveting device for the elbow water pipe of an oil cooler according to claim 1, wherein: The riveting assembly includes a riveting head (19), a first unloading block (8) and a second unloading block (9). The top of the riveting head (19) is installed on the upper template (1). There are two groups of the riveting heads (19). The first unloading block (8) and the second unloading block (9) are respectively installed at the bottoms of the two groups of the riveting heads (19) through a cylindrical pin (20). A return spring (21) is further provided between the first unloading block (8) and the second unloading block (9) and the upper template (1). The first unloading block (8) and the second unloading block (9) respectively correspond to the positions of the first support block (10) and the second support block (11).

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