Pressing plate expanded connection tool

Abstract

The utility model discloses a pressing plate expanded connection tool which comprises a die installation base and a clamp installation base, a flaring die and a forming die are installed on the side, close to the clamp installation base, of the die installation base, a clamp is installed on the clamp installation base, an installation groove and a pipe groove are formed in the clamp, the pipe groove is communicated with the installation groove, and a pressing plate is installed in the installation groove. A through hole is formed in the side, away from the mold mounting base, of the pressing plate, a first inclined face is connected to the side, close to the mold mounting base, of the through hole, a supporting face is connected to the side, close to the mold mounting base, of the first inclined face, a second inclined face is connected to the side, close to the mold mounting base, of the supporting face, and an annular groove is connected to the side, close to the mold mounting base, of the second inclined face. The pipe end expansion device can expand the pipe end of a pipe, so that the pipe end is expanded to be fixed with the pressing plate.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and more specifically, to a pressure plate expansion joint tooling. Background Technology

[0002] During vehicle assembly, automotive air conditioning piping is constrained by the complex environment and space within the vehicle's front compartment. To improve the vibration resistance of the air conditioning piping system, facilitate assembly, reduce the space occupied by the fixed piping, and allow for a more rational layout within the front compartment, pressure plate connections are typically used. Traditionally, pipe and pressure plate connections are primarily achieved through welding, with adhesive expansion and threaded connections used in special cases. These methods require workers to perform more loading and unloading operations, impacting processing efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a pressure plate expansion joint tooling.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a pressure plate expansion joint tooling, including a mold mounting base and a clamp mounting base. A flaring mold and a forming mold are installed on the side of the mold mounting base near the clamp mounting base. A clamp is installed on the clamp mounting base. The clamp has an installation groove and a pipe groove. The pipe groove is connected to the installation groove. A pressure plate is installed in the installation groove. A through hole is opened on the side of the pressure plate away from the mold mounting base. An inclined surface one is connected to the side of the through hole near the mold mounting base. A support surface is connected to the side of the inclined surface one near the mold mounting base. An inclined surface two is connected to the side of the support surface near the mold mounting base. An annular groove is connected to the side of the inclined surface two near the mold mounting base.

[0006] Furthermore, the inclined surface is annular, and the diameter of the end of the inclined surface connected to the support surface is larger than the diameter of the end connected to the through hole.

[0007] Furthermore, the second inclined surface is annular, and the diameter of the end of the inclined surface connected to the annular groove is larger than the diameter of the end connected to the support surface.

[0008] Furthermore, the flaring die includes a mounting block 1, a flaring rod 1 connected to the side of the mounting block 1 near the fixture mounting seat, a reducing rod 1 connected to the end of the flaring rod 1 away from the mounting block 1, and a mandrel 1 connected to the end of the reducing rod 1 away from the flaring rod 1.

[0009] Furthermore, the diameter of the first mandrel is smaller than the diameter of the first flared rod, the first reducing rod is frustum shaped, the diameter of the end of the first reducing rod near the first flared rod is the same as the diameter of the first flared rod, and the diameter of the end of the first reducing rod near the first mandrel is the same as the diameter of the first mandrel.

[0010] Furthermore, there are two flaring dies, and the diameters of the flaring rods of the two flaring dies are different.

[0011] Furthermore, the molding die includes a second mounting block. A molding ring is connected to the side of the second mounting block near the fixture mounting seat. The molding ring is frustum-shaped. A support rod is connected to the end of the molding ring away from the second mounting block. The diameter of the end of the molding ring near the second mounting block is larger than the diameter of the end near the support rod. A variable diameter rod is connected to the end of the support rod away from the molding ring. A mandrel is connected to the end of the variable diameter rod away from the support rod. The variable diameter rod is frustum-shaped. The diameter of the end of the variable diameter rod near the support rod is larger than the diameter of the end near the mandrel.

[0012] Furthermore, there are two molding dies, and the molding rings of the two molding dies have different lengths.

[0013] The beneficial effect of this utility model is that the pipe end inserted into the pressure plate is flared and shaped so that the pipe end expands and completes the fixed connection with the pressure plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the pressure plate expansion joint tool in this embodiment;

[0015] Figure 2 This is a schematic diagram of one structure of the flaring mold in this embodiment;

[0016] Figure 3 This is a schematic diagram of one structure of the molding die in this embodiment;

[0017] Figure 4 This is a cross-sectional view of the pressure plate in this embodiment;

[0018] Figure 5 This is a schematic diagram of the completed structure in this embodiment.

[0019] Reference numerals in the attached drawings: 1. Mold mounting base; 2. Flaring mold; 3. Forming mold; 4. Fixture mounting base; 5. Fixture; 6. Pipe groove; 7. Pipe; 8. Mounting groove; 9. Pressure plate; 10. Mounting block one; 11. Flaring rod one; 12. Mandrel one; 13. Variable diameter rod one; 14. Mounting block two; 15. Support rod; 16. Mandrel two; 17. Variable diameter rod two; 18. Forming ring; 19. Inclined surface one; 20. Support surface; 21. Inclined surface two; 22. Ring groove; 23. Through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 As shown, a pressure plate expansion fitting includes a mold mounting base 1 and a clamp mounting base 4. A flaring mold 2 and a forming mold 3 are mounted on the side of the mold mounting base 1 near the clamp mounting base 4. A clamp 5 is mounted on the clamp mounting base 4. The clamp 5 has an installation groove 8 and a pipe groove 6, which are connected to the installation groove 8. A pressure plate 9 is installed in the installation groove 8. A through hole 23 is provided on the side of the pressure plate 9 away from the mold mounting base 1. An inclined surface 19 is connected to the side of the through hole 23 near the mold mounting base 1. The inclined surface 19 is close to the mold mounting base 1. A support surface 20 is connected to one side of the mounting base 1. An inclined surface 19 is annular, and the diameter of the end of the inclined surface 19 connected to the support surface 20 is larger than the diameter of the end connected to the through hole 23. An inclined surface 21 is connected to the side of the support surface 20 near the mold mounting base 1. An annular groove 22 is connected to the side of the inclined surface 21 near the mold mounting base 1. The inclined surface 21 is annular, and the diameter of the end of the inclined surface 21 connected to the annular groove 22 is larger than the diameter of the end connected to the support surface 20. The outer diameter of the annular groove 22 is larger than the maximum diameter of the inclined surface 21. The tube 7 is first inserted into the tube groove 6 for fixation, and then the pressure plate 9 is inserted into the mounting groove 8, simultaneously causing the tube end of the tube 7 to pass through the mounting groove 8. The flaring mold 2 and the forming mold 3 act sequentially on the tube end of the tube 7, causing the tube end of the tube 7 to expand, such as... Figure 5 As shown, the outer wall of the pipe end of the pipe 7 can fit with the inclined surface 19, the support surface 20, the inclined surface 21 and the annular groove 22 inside the pressure plate 9, thereby completing the expansion joint.

[0022] Furthermore, the flaring mold 2 includes a mounting block 10. A flaring rod 11 is connected to the side of the mounting block 10 near the fixture mounting base 4. A reducing rod 13 is connected to the end of the flaring rod 11 away from the mounting block 10, and a mandrel 12 is connected to the end of the reducing rod 13 away from the flaring rod 11. The diameter of the mandrel 12 is smaller than the diameter of the flaring rod 11. The reducing rod 13 is frustoconical in shape. The diameter of the reducing rod 13 near the flaring rod 11 is the same as that of the flaring rod 11, and the diameter of the reducing rod 13 near the mandrel 12 is the same as that of the mandrel 12. The mandrel 12 extends into the tube 7 to support the portion corresponding to the through hole 23. The reducing rod 17, in conjunction with the inclined surface 19, bends the wall of the tube 7. The flaring rod 11 extends into the tube 7, enlarging the diameter of the tube 7 end.

[0023] Furthermore, there are two flaring molds 2, and the flaring rods 11 of the two flaring molds 2 have different diameters. First, the pipe end of the pipe 7 is flared by the flaring mold 2 with the smaller diameter flaring rod 11, and then the pipe end of the pipe 7 is flared by the flaring mold 2 with the larger diameter flaring rod 11. This allows the pipe end to be flared gradually, avoiding excessive deformation and damage to the pipe end caused by flaring in one step.

[0024] Furthermore, the molding die 3 includes a mounting block 2 14. A molding ring 18 is connected to the side of the mounting block 2 14 near the fixture mounting seat 4. The molding ring 18 is frustoconical. A support rod 15 is connected to the end of the molding ring 18 away from the mounting block 2 14. The diameter of the end of the molding ring 18 near the mounting block 2 14 is larger than the diameter of the end near the support rod 15. A variable diameter rod 2 17 is connected to the end of the support rod 15 away from the molding ring 18. A mandrel 2 16 is connected to the end of the variable diameter rod 2 17 away from the support rod 15. The variable diameter rod 2 17 is frustoconical. The diameter of the end of the variable diameter rod 2 17 near the support rod 15 is larger than the diameter of the end near the mandrel 2 16.

[0025] Furthermore, there are two molding dies 3, and the molding rings 18 of the two molding dies 3 have different lengths.

[0026] When the forming mold 3 with the shorter forming ring 18 acts on the end of the tube 7, the mandrel 16 is inserted into the tube 7 at the position corresponding to the through hole 23 to provide support and prevent deformation. The reducing rod 17 cooperates with the inclined surface 19 to further compress the tube 7, making the tube wall of the tube 7 fit more closely to the inclined surface 19. The support rod 15 extends into the tube 7 at the position corresponding to the support surface 20 to provide support and prevent deformation. The forming ring 18 acts on the tube 7 and cooperates with the inclined surface 21 to enlarge the end of the tube 7, making the outer wall of the tube 7 fit closely to the inclined surface 21.

[0027] When the forming mold 3 with a longer forming ring 18 acts on the end of the pipe 7, the mounting block 2 14 will press against the end of the pipe after the forming ring 18 contacts the pipe 7, squeezing the end of the pipe and pressing it into the ring groove 22 for forming, thereby increasing the contact between the end of the pipe and the pressure plate 9, making the connection between the two more secure.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A press plate expansion tooling, characterized by, The utility model provides a mould installation seat (1) and clamp installation seat (4) including, the flaring die (2) and the forming die (3) are installed to the one side of mould installation seat (1) near clamp installation seat (4), clamp (5) is installed on clamp installation seat (4), the installation groove (8) and pipe groove (6) are seted up on clamp (5), pipe groove (6) is connected with installation groove (8), the pressing plate (9) is installed in installation groove (8), the through -hole (23) is seted up on the one side of pressing plate (9) away from mould installation seat (1), the one side of through -hole (23) near mould installation seat (1) is connected with inclined plane one (19), the one side of inclined plane one (19) near mould installation seat (1) is connected with support surface (20), the one side of support surface (20) near mould installation seat (1) is connected with inclined plane two (21), the one side of inclined plane two (21) near mould installation seat (1) is connected with ring groove (22).

2. The press plate expansion bonding tool according to claim 1, characterized in that, The inclined plane one (19) is annular, the diameter of the one end of the inclined plane one (19) connected with the support surface (20) is greater than the diameter of the other end connected with the through -hole (23).

3. The press plate expansion bonding tool according to claim 2, characterized in that, The inclined plane two (21) is annular, the diameter of the one end of the inclined plane two (21) connected with the ring groove (22) is greater than the diameter of the other end connected with the support surface (20).

4. The press plate expansion tooling of claim 1, wherein, The flaring die (2) includes the mounting block one (10), the flaring rod one (11) is connected to the one side of the mounting block one (10) near the clamp installation seat (4), the diameter of the flaring rod one (11) is greater than the diameter of the core rod one (12), the diameter of the one end of the variable diameter rod one (13) near the flaring rod one (11) is the same as the diameter of the flaring rod one (11), the diameter of the other end of the variable diameter rod one (13) near the core rod one (12) is the same as the diameter of the core rod one (12).

5. The press plate expansion tooling of claim 4, wherein, The diameter of the core rod one (12) is less than the diameter of the flaring rod one (11), the variable diameter rod one (13) is circular truncated cone type, the diameter of the one end of the variable diameter rod one (13) near the flaring rod one (11) is the same as the diameter of the flaring rod one (11), the diameter of the other end of the variable diameter rod one (13) near the core rod one (12) is the same as the diameter of the core rod one (12).

6. The press plate expansion tooling of claim 4, wherein, The flaring die (2) is provided with two, the diameter of the flaring rod one (11) of two flaring dies (2) is different.

7. The press plate expansion tooling of claim 1, wherein, The forming die (3) includes the mounting block two (14), the forming ring (18) is connected to the one side of the mounting block two (14) near the clamp installation seat (4), the diameter of the one end of the forming ring (18) near the mounting block two (14) is greater than the diameter of the other end near the support rod (15), the diameter of the variable diameter rod two (17) is greater than the diameter of the core rod two (16), the diameter of the one end of the variable diameter rod two (17) near the support rod (15) is greater than the diameter of the other end near the core rod two (16).

8. The press plate expansion tooling of claim 7, wherein, The forming die (3) is provided with two, the length of the forming ring (18) of two forming dies (3) is different.

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