Forming die for refrigerator air compressor connecting rod

Abstract

The forming die for the refrigerator air compressor connecting rod comprises an upper punching bearing plate, a female die, a lower punching bearing plate and a core rod assembly, the two ends of the bottom of the upper punching bearing plate are connected with upper punching rings through bolts, each upper punching ring is internally provided with an upper punching main body, the two ends of the female die are provided with cavities, and the lower punching bearing plate is provided with a lower punching main body. A cavity is formed in the top of the upper punching bearing plate, the upper punching body penetrates into the cavity from the top end of the cavity, lower punching rings are connected to the two ends of the top of the lower punching bearing plate through bolts, a lower punching body is arranged in each lower punching ring, the lower punching bodies penetrate into the cavity from the bottom end of the cavity, and adjusting assemblies are arranged between the upper punching rings and the upper punching bearing plate and between the lower punching bearing plate and the lower punching rings. The utility model relates to the technical field of powder metallurgy. By means of the integral structure, synchronous production of two products in the one-time forming process can be achieved by adopting few components, the yield and production efficiency are greatly improved, and labor cost and investment are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a forming die for a connecting rod of a refrigerator air compressor. Background Art

[0002] The connecting rod is a part in a refrigerator air compressor, which is a relatively small part with a complex structure. It cannot be mass-produced by ordinary processing, and the production efficiency is low and the manufacturing cost is high. At present, most of such parts are produced by powder metallurgy. The die used for powder metallurgy generally includes an upper punch, a female die, a lower punch and a core rod. Each female die has only one cavity, so a die can only produce one part at a time, and it is difficult to improve the production efficiency.

[0003] Therefore, the utility model provides a forming die for a connecting rod of a refrigerator air compressor to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a forming die for a connecting rod of a refrigerator air compressor, which solves the above problems.

[0005] To achieve the above object, the utility model is realized by the following technical solutions: A forming die for a connecting rod of a refrigerator air compressor includes an upper punch bearing plate, a female die, a lower punch bearing plate and a core rod assembly. Both ends of the bottom of the upper punch bearing plate are connected with upper punch rings through bolts. An upper punch main body is arranged inside each upper punch ring. Cavities are opened at both ends of the female die, and the upper punch main body penetrates into the female die from the top end of the cavity. Both ends of the top of the lower punch bearing plate are connected with lower punch rings through bolts. A lower punch main body is arranged inside each lower punch ring, and the lower punch main body penetrates into the female die from the bottom end of the cavity. Adjusting components are arranged between the upper punch ring and the upper punch bearing plate and between the lower punch bearing plate and the lower punch ring. The adjusting components are used to compensate the height difference between the two upper punch rings and the two lower punch main bodies.

[0006] Preferably, the adjusting component includes a mounting seat, a limiting frame, a limiting rod, a jacking plate and a guiding plate. Mounting seats are arranged between the upper punch bearing plate and the upper punch ring and between the lower punch bearing plate and the lower punch ring. A limiting frame is fixedly connected inside the mounting seat. A limiting rod is vertically slidably connected in the middle of the limiting frame. The bottom end of the limiting rod is fixedly connected with a jacking plate. A guiding plate is fixedly connected in the middle of the jacking plate. A guiding through groove is obliquely opened in the middle of the guiding plate. A transmission screw rod is rotatably connected in the middle of the mounting seat. A displacement frame is threadedly connected to the outer side of the transmission screw rod, and both ends of the displacement frame are respectively slidably connected inside the two guiding through grooves.

[0007] Preferably, the mandrel assembly includes a mandrel bearing plate, a mandrel pressing ring and a mandrel body. The top end of the mandrel bearing plate is connected with the mandrel pressing ring by bolts. A plurality of mandrel bodies are arranged on the mandrel pressing ring. Through holes adapted to the mandrel bodies are formed at both ends of the lower punch body, and the mandrel bodies penetrate through the through holes and extend into the cavity interior.

[0008] Preferably, mounting grooves are arranged inside both the upper stamping ring and the lower stamping ring, and the upper punch body and the lower punch body are assembled inside the mounting grooves.

[0009] Preferably, an avoidance hole is formed in the middle of the mounting seat for avoiding bolts.

[0010] Preferably, a limiting piece is fixedly connected to the top end of the limiting rod, and a noise reduction pad is fixedly connected to the outside of the limiting piece.

[0011] Preferably, a guiding slide bar is fixedly connected to the middle of the mounting seat, and the displacement frame is also slidably connected to the outside of the guiding slide bar.

[0012] Preferably, guide rods are fixedly connected to both ends of the displacement frame, and the displacement frame is connected inside the guiding through groove through the guide rods. A wear-resistant layer is arranged on the outside of the guide rods.

[0013] Beneficial effects

[0014] The utility model provides a forming die for a refrigerator air compressor connecting rod. Compared with the prior art, the following beneficial effects are achieved:

[0015] For the forming die for the refrigerator air compressor connecting rod, through the overall structure, synchronous production of two products can be realized in one forming process with fewer components, greatly improving the output and production efficiency and reducing the labor cost and investment.

[0016] For the forming die for the refrigerator air compressor connecting rod, through the structural cooperation of the adjusting assembly, stable adjustment of the height difference between two upper punch bodies or two lower punch bodies can be realized through the controllable displacement of the jacking plate, ensuring the consistency of the product height. Description of the drawings

[0017] Figure 1 is a schematic diagram of the utility model;

[0018] Figure 2 is an exploded view of the utility model;

[0019] Figure 3 is a schematic assembly structure diagram of the upper stamping ring and the upper punch body of the utility model;

[0020] Figure 4 is a schematic assembly structure diagram of the lower stamping ring and the lower punch body of the utility model;

[0021] Figure 5 is a structural schematic diagram of the adjustment component of the present utility model;

[0022] In the figure, 1 is the upper punch bearing plate; 2 is the female die; 3 is the lower punch bearing plate; 4 is the mandrel bearing plate; 5 is the upper punch ring; 6 is the upper punch body; 7 is the cavity; 8 is the lower punch ring; 9 is the lower punch body; 10 is the adjustment component; 11 is the mounting seat; 12 is the limit frame; 13 is the limit rod; 14 is the lifting plate; 15 is the guide plate; 16 is the guide through groove; 17 is the transmission screw; 18 is the displacement frame; 19 is the mandrel retaining ring; 20 is the mandrel body. Specific embodiments

[0023] 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.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-5 , a forming die for a refrigerator air compressor connecting rod, including an upper punch bearing plate 1, a female die 2, a lower punch bearing plate 3 and a mandrel assembly. Both ends of the bottom of the upper punch bearing plate 1 are connected with upper punch rings 5 through bolts. An upper punch body 6 is arranged inside each upper punch ring 5. Cavities 7 are opened at both ends of the female die 2, and the upper punch body 6 penetrates into the cavity 7 from the top end. Both ends of the top of the lower punch bearing plate 3 are connected with lower punch rings 8 through bolts. A lower punch body 9 is arranged inside each lower punch ring 8, and the lower punch body 9 penetrates into the cavity 7 from the bottom end. Adjustment components 10 are arranged between the upper punch ring 5 and the upper punch bearing plate 1 and between the lower punch bearing plate 3 and the lower punch ring 8. The adjustment component 10 is used to compensate for the height difference between the two upper punch rings 5 and the two lower punch bodies 9;

[0026] Specifically, mounting grooves are arranged inside the upper punch ring 5 and the lower punch ring 8. The upper punch body 6 and the lower punch body 9 are assembled inside the mounting grooves. By means of the arrangement of the mounting grooves, the upper punch body 6 and the lower punch body 9 can be effectively placed, ensuring the stability of the upper punch body 6 and the lower punch body 9 during application;

[0027] The mandrel assembly includes a mandrel bearing plate 4, a mandrel retaining ring 19 and a mandrel body 20. The top end of the mandrel bearing plate 4 is connected with the mandrel retaining ring 19 through bolts. A plurality of mandrel bodies 20 are arranged on the mandrel retaining ring 19. Through holes adapted to the mandrel bodies 20 are opened at both ends of the lower punch body 9, and the mandrel bodies 20 penetrate through the through holes and extend into the cavity 7;

[0028] In this embodiment, the upper punch body 6 is used to seal the cavity 7 from the upper part of the female mold 2 and transfer pressure to the powder part from top to bottom. The cavity 7 is used to press the powder. The lower punch body 9 is used to seal the cavity 7 from the lower part and transfer pressure to the powder part from bottom to top. The core rod body 20 is used to form the green compact into a product in the pressing direction.

[0029] Furthermore, in this embodiment, considering the characteristics of the powder metallurgy pressing process, the lower punch body 9 cannot be "pressed dead". Therefore, the two lower punch rings 8 and the two lower punch bodies 9 are designed to be separate and independent, and a certain gap is reserved.

[0030] Embodiment Two:

[0031] Please refer to Figures 1-5 , this embodiment provides a technical solution based on Embodiment One: The adjustment assembly 10 includes a mounting seat 11, a limiting frame 12, a limiting rod 13, a jacking plate 14 and a guiding plate 15. Mounting seats 11 are arranged between the upper punch bearing plate 1 and the upper punch ring 5 and between the lower punch bearing plate 3 and the lower punch ring 8. A limiting frame 12 is fixedly connected inside the mounting seat 11. A limiting rod 13 is vertically slidably connected to the middle of the limiting frame 12. The bottom end of the limiting rod 13 is fixedly connected to a jacking plate 14. A guiding plate 15 is fixedly connected to the middle of the jacking plate 14. A guiding through groove 16 is obliquely formed in the middle of the guiding plate 15. A transmission screw rod 17 is rotatably connected to the middle of the inside of the mounting seat 11. A displacement frame 18 is threadedly connected to the outside of the transmission screw rod 17, and the two ends of the displacement frame 18 are respectively slidably connected inside the two guiding through grooves 16.

[0032] Furthermore, an avoidance hole is formed in the middle of the mounting seat 11 for avoiding bolts.

[0033] Here, a limiting piece is fixedly connected to the top end of the limiting rod 13, and a noise reduction pad is fixedly connected to the outside of the limiting piece. By means of the arrangement of the limiting piece, the displacement stroke of the limiting rod 13 can be limited to prevent the limiting rod 13 from disengaging from the limiting frame 12.

[0034] Preferably, a guiding slide rod is fixedly connected to the middle of the mounting seat 11, and the displacement frame 18 is also slidably connected to the outside of the guiding slide rod. By means of the arrangement of the guiding slide rod, the displacement of the displacement frame 18 can be effectively guided to prevent the displacement frame 18 from rotating uncontrollably.

[0035] Furthermore, guide rods are fixedly connected to both ends of the displacement frame 18. The displacement frame 18 is connected to the inside of the guide through groove 16 through the guide rods, and a wear-resistant layer is provided on the outer side of the guide rods. With the arrangement of the guide rods, during the linear displacement of the displacement frame 18, the guide rods can be driven to displace inside the guide through groove 16. Since the guide through groove 16 is inclined, the lifting plate 14 can be driven to displace under the limitation of the limiting rod 13.

[0036] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0037] Working principle: When the height difference between the two upper punch bodies 6 and between the two lower punch bodies 9 exceeds 0.01, first loosen the bolts at the corresponding positions to increase the distance between the upper punch bearing plate 1 and the upper punch ring 5 or between the lower punch bearing plate 3 and the lower punch ring 8. Subsequently, rotate the transmission screw rod 17 to drive the displacement frame 18 to displace along the transmission screw rod 17. In combination with the connection between the displacement frame 18 and the guide through groove 16, when the displacement frame 18 linearly displaces, it can push the lifting plate 14 to move out of the mounting seat 11 under the limitation of the limiting rod 13, and push the upper punch body 6 or the lower punch body 9 through the limiting frame 12, so as to adjust the height difference between the two upper punch bodies 6 and the two lower punch bodies 9, ensuring that the height difference between the two upper punch bodies 6 and the two lower punch bodies 9 does not exceed 0.01, thereby ensuring the consistency of the product height during the pressing production process.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forming die for the connecting rod of a refrigerator air compressor, characterized in that: It includes an upper punch bearing plate (1), a female die (2), a lower punch bearing plate (3) and a mandrel assembly. At both ends of the bottom of the upper punch bearing plate (1), upper punch rings (5) are connected by bolts. Inside each upper punch ring (5), an upper punch body (6) is arranged. Cavities (7) are formed at both ends of the female die (2), and the upper punch body (6) penetrates into the female die (2) from the top of the cavity (7). At both ends of the top of the lower punch bearing plate (3), lower punch rings (8) are connected by bolts. Inside each lower punch ring (8), a lower punch body (9) is arranged, and the lower punch body (9) penetrates into the female die (2) from the bottom of the cavity (7). Adjustment assemblies (10) are arranged between the upper punch rings (5) and the upper punch bearing plate (1) and between the lower punch bearing plate (3) and the lower punch rings (8). The adjustment assemblies (10) are used to compensate for the height difference between the two upper punch rings (5) and the two lower punch bodies (9).

2. The forming die for the connecting rod of the refrigerator air compressor according to claim 1, characterized in that: The adjustment assembly (10) includes a mounting seat (11), a limiting frame (12), a limiting rod (13), a jacking plate (14) and a guiding plate (15). Mounting seats (11) are arranged between the upper punch bearing plate (1) and the upper punch rings (5) and between the lower punch bearing plate (3) and the lower punch rings (8). A limiting frame (12) is fixedly connected inside the mounting seat (11). A limiting rod (13) is vertically slidably connected to the middle of the limiting frame (12). The bottom end of the limiting rod (13) is fixedly connected with a jacking plate (14). A guiding plate (15) is fixedly connected to the middle of the jacking plate (14). A guiding through groove (16) is obliquely formed in the middle of the guiding plate (15). A transmission screw rod (17) is rotatably connected to the middle of the mounting seat (11). A displacement frame (18) is threadedly connected to the outside of the transmission screw rod (17), and both ends of the displacement frame (18) are respectively slidably connected inside the two guiding through grooves (16).

3. The forming die for the connecting rod of the refrigerator air compressor according to claim 1, characterized in that: The mandrel assembly includes a mandrel bearing plate (4), a mandrel pressing ring (19) and a mandrel body (20). The top of the mandrel bearing plate (4) is connected with a mandrel pressing ring (19) by bolts. A plurality of mandrel bodies (20) are arranged on the mandrel pressing ring (19). Through holes adapted to the mandrel bodies (20) are formed at both ends of the lower punch body (9), and the mandrel bodies (20) penetrate through the through holes and extend into the cavity (7).

4. A forming die for a connecting rod of a refrigerator air compressor according to claim 1, characterized in that: Mounting grooves are arranged inside the upper punch rings (5) and the lower punch rings (8), and the upper punch bodies (6) and the lower punch bodies (9) are assembled inside the mounting grooves.

5. The forming die for the connecting rod of a refrigerator air compressor according to claim 2, characterized in that: An avoidance hole is formed in the middle of the mounting seat (11) for avoiding bolts.

6. A forming die for a connecting rod of a refrigerator air compressor according to claim 2, characterized in that: A limiting piece is fixedly connected to the top end of the limiting rod (13), and a noise reduction pad is fixedly connected to the outside of the limiting piece.

7. The forming die for the connecting rod of the refrigerator air compressor according to claim 2, characterized in that: A guiding slide bar is fixedly connected to the middle of the mounting seat (11), and the displacement frame (18) is also slidably connected to the outside of the guiding slide bar.

8. A forming die for a refrigerator air compressor connecting rod according to claim 2, characterized in that: Both ends of the displacement frame (18) are fixedly connected with guide rods, and the displacement frame (18) is connected inside the guide through groove (16) through the guide rods, and a wear-resistant layer is arranged on the outer side of the guide rods.

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