A compressor mounting plate riveting mold

Abstract

This utility model relates to the technical field of stamping dies, and proposes a compressor mounting plate riveting die, including a die body, which includes an upper template assembly and a lower template assembly. The upper and lower template assemblies are used to rivet and fix the compressor mounting plate to the rivets. A punch is disposed on the upper template assembly. A positioning seat is used to install the rivets and is disposed on the lower template assembly. The compressor mounting plate and the positioning seat are assembled with the rivets, and the die body is closed. The upper template assembly drives the punch to press down on the rivets, and the rivet head is deformed by compression. The rivet head spreads along the outer periphery of the mounting hole of the compressor mounting plate and is pressed against the upper part of the compressor mounting plate. The compressor mounting plate riveting die realizes the synchronous riveting of multiple mounting holes of the compressor mounting plate with each rivet through the closing action of the upper and lower template assemblies. The punch driven by the upper template assembly presses down vertically on the rivet head, so that the rivet head is deformed and spreads evenly along the outer periphery of the mounting hole, forming a mechanical interlock.

Description

Technical Field

[0001] This utility model relates to the technical field of stamping dies, specifically to a compressor mounting plate riveting die. Background Technology

[0002] The current compressor mounting plate is assembled with rivets using a spin riveting machine. The compressor mounting plate has more than three mounting holes. The process involves inserting the rivet into the mounting hole, and then using a high-frequency rotating spin riveting head to plastically deform the rivet head, thus achieving fastening. Since a single spin riveting machine can only process one rivet at a time, multiple positioning operations are required to complete all riveting operations, resulting in prolonged assembly time per part, low production efficiency, and insufficient equipment utilization.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] This invention proposes a compressor mounting plate riveting mold. Through the closing action of the upper and lower template assemblies, the mold enables simultaneous riveting of multiple mounting holes on the compressor mounting plate with each rivet. The punch driven by the upper template assembly vertically presses down on the rivet head, causing it to deform and spread evenly along the outer periphery of the mounting hole, forming a mechanical interlock. Compared to the single-point processing mode of traditional riveting machines, this mold structure eliminates repetitive positioning time, integrating the previously multi-operation process into a single stamping process, significantly improving production efficiency.

[0005] A compressor mounting plate rivet mold designed for this purpose includes a mold body, the mold body comprising: An upper template assembly and a lower template assembly are used to rivet and fix the compressor mounting plate to the rivets. A punch, which is disposed on the upper template assembly; A positioning seat, which is used to install rivets and is set on the lower template assembly; The compressor mounting plate and the positioning seat are assembled with rivets, and the mold body is closed. The upper template assembly drives the punch to press down on the rivets. The rivet head is deformed by compression and spreads along the outer periphery of the compressor mounting hole and is pressed against the upper part of the compressor mounting plate.

[0006] The punch has a first taper at the lower end of the rivet.

[0007] The rivet has a positioning part on the lower outer side corresponding to its head; The rivet head passes through the mounting hole of the compressor mounting plate, the positioning part is located on the lower surface of the mounting hole, and the rivet head extends out of the upper surface of the mounting hole and forms a riveting part when the punch is pressed down. After the riveting is completed, the compressor mounting plate is clamped between the riveting part and the positioning part to achieve axial fixation.

[0008] The positioning seat is provided with a mounting cavity for inserting rivets, and the depth of the mounting cavity is greater than the length of the rivet insertion section.

[0009] The lower part of the rivet is provided with a second taper to guide the rivet into the mounting cavity.

[0010] The positioning seat is fixed on the lower template assembly, or the positioning seat is detachably installed on the lower template assembly.

[0011] The punch is fixed to the upper template assembly, or the punch is detachably installed on the upper template assembly.

[0012] The positioning seat extends upward from the upper part of the lower template assembly to axially fix the rivet and to make the rivet head face the upper template assembly.

[0013] The rivet head is provided with a groove for engaging with the lower part of the punch.

[0014] The upper template assembly includes an upper template fixed to the punch and a lower template fixed to the positioning seat. The number of punches is two or more, the number of positioning seats is two or more, and the punches and positioning seats are arranged in a one-to-one correspondence.

[0015] The beneficial technical effects of this utility model are as follows: The compressor mounting plate riveting mold achieves simultaneous riveting of multiple mounting holes and each rivet through the closing action of the upper and lower template assemblies. The punch driven by the upper template assembly presses down vertically on the rivet head, causing it to deform and spread evenly along the outer periphery of the mounting hole, forming a mechanical interlock. Compared to the single-point processing mode of traditional riveting machines, this mold structure eliminates repeated positioning time, integrating the process that originally required multiple operations into a single stamping, significantly improving production efficiency. The pre-set mounting cavity of the positioning seat ensures the axial alignment of the rivet, and when fixing the lower template assembly on the stamping machine table, it avoids uneven tightening force caused by misalignment during riveting, thus ensuring the assembly stability of the compressor mounting plate and rivets. Attached Figure Description

[0016] Figure 1 This is a three-dimensional cross-sectional structural diagram of the compressor mounting plate rivet mold in the mold-opening state according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the compressor mounting plate rivet mold in the closed state according to an embodiment of the present invention.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a schematic diagram of the structure of a rivet head after being compressed according to an embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0021] See Figures 1-4 A compressor mounting plate rivet mold, comprising a mold body, the mold body comprising: Upper template assembly 1 and lower template assembly 2 are used to rivet and fix the compressor mounting plate 6 to the rivet 5. Punch 3, wherein the punch 3 is disposed on the upper template assembly 1; Positioning seat 4, which is used to install rivets 5 and is set on the lower template assembly 2; The compressor mounting plate 6 is assembled with the rivet 5 of the positioning seat 4, and the mold body is closed. The upper template assembly 1 drives the punch 3 to press down the rivet 5. The head of the rivet 5 is deformed by compression. The head of the rivet 5 spreads along the outer periphery of the mounting hole of the compressor mounting plate 6 and is pressed against the upper part of the compressor mounting plate 6.

[0022] The compressor mounting plate riveting mold achieves simultaneous riveting of multiple mounting holes on the compressor mounting plate 6 and each rivet 5 through the closing action of the upper template assembly 1 and the lower template assembly 2. The punch 3 driven by the upper template assembly 1 presses down vertically on the head of the rivet 5, causing the head of the rivet 5 to deform and spread evenly along the outer periphery of the mounting hole, forming a mechanical interlock. Compared with the single-point processing mode of traditional riveting machines, this mold structure eliminates the time of repeated positioning, integrating the process that originally required multiple operations into a single stamping, significantly improving production efficiency. The preset mounting cavity 401 of the positioning seat 4 ensures the axial alignment of the rivet 5, and at the same time, when fixing the lower template assembly 2 on the stamping machine table, it avoids the problem of uneven fastening force caused by skewing during the riveting process, thereby ensuring the assembly stability of the compressor mounting plate 6 and the rivet 5.

[0023] The punch 3 has a first taper 301 at the lower end of the rivet 5.

[0024] The first taper 301 at the lower end of the punch 3 creates a progressive extrusion force when it contacts the head of the rivet 5, causing the metal to flow under pressure. The tapered structure guides the material at the head of the rivet 5 to preferentially fill the edge area of ​​the mounting hole in the compressor mounting plate 6, making the forming of the riveting part 502 more uniform and flat.

[0025] The rivet 5 is provided with a positioning part 501 on the lower outer side of its head; The head of the rivet 5 passes through the mounting hole of the compressor mounting plate 6, the positioning part 501 is located on the lower surface of the mounting hole, the head of the rivet 5 extends out of the upper surface of the mounting hole and forms the riveting part 502 when the punch 3 is pressed down. After the riveting is completed, the compressor mounting plate 6 is clamped between the riveting part 502 and the positioning part 501 to achieve axial fixation.

[0026] The positioning part 501 and the riveting part 502 of the rivet 5 form a clamping structure in the vertical direction, firmly fixing the compressor mounting plate 6 between them. The positioning part 501 is pre-positioned on the lower surface of the mounting hole to ensure that the rivet 5 is axially pre-fixed before stamping, preventing displacement during mold closing. When the punch 3 presses down, the upward extension of the rivet head is compressed to form the riveting part 502. The amount of deformation is precisely controlled by the positioning part 501 to avoid excessive compression that could cause deformation of the sheet metal.

[0027] The positioning seat 4 is provided with a mounting cavity 401 for inserting rivets 5.

[0028] The mounting cavity 401 on the positioning seat 4 provides a radial positioning reference for the rivet 5. Its inner wall has a clearance fit with the lower part of the rivet 5 to ensure the perpendicularity of the rivet 5. The depth of the mounting cavity 401 is greater than the length of the rivet 5 insertion section to resist the axial reaction force during stamping and prevent the positioning seat 4 from being crushed. The positioning seat 4 is compatible with rivets 5 of different diameters. Quick changeover can be achieved simply by replacing the positioning seat 4, reducing mold adaptation costs.

[0029] The lower part of the rivet 5 is provided with a second taper 503 for guiding the rivet 5 into the mounting cavity 401. The second taper 503 at the lower part of the rivet 5 forms a guiding fit with the entrance of the mounting cavity 401, and the tapered surface contact reduces the assembly friction resistance between the rivet 5 and the positioning seat 4.

[0030] The positioning seat 4 is fixed on the lower template assembly 2, or the positioning seat 4 is detachably installed on the lower template assembly 2.

[0031] The positioning seat 4 and the lower template assembly 2 are connected by bolts to form a detachable fixed connection, which allows for the replacement of only the corresponding positioning seat 4 module instead of the entire mold for different models of compressor mounting plates, greatly reducing the cost of equipment modification.

[0032] When the compressor mounting plate is long, a guide mold closing structure (guide post and guide sleeve) can be set between the upper and lower molds in the width direction. The guide mold closing structure will not interfere with the compressor mounting plate.

[0033] The punch 3 is fixed on the upper template assembly 1, or the punch 3 is detachably installed on the upper template assembly 1.

[0034] The detachable design of the punch 3 and the upper mold plate assembly 1 facilitates the maintenance of worn parts. When a single punch 3 is damaged, it can be replaced independently, avoiding the scrapping of the entire mold. The punch 3 and the upper mold plate assembly 1 are connected by bolts to form a detachable fixed connection.

[0035] The positioning seat 4 extends upward from the upper part of the lower template assembly 2 to axially fix the rivet 5, and the head of the rivet 5 faces the upper template assembly 1.

[0036] The upward-extending structure of the positioning seat 4 ensures that its top is higher than the upper surface of the lower template assembly 2, forming a cantilever support for the rivet 5. This design ensures that the compressor mounting plate 6 can be laid flat on top of the positioning seat 4, achieving initial positioning of the plate material without additional clamps. This allows the mounting plate 6 to naturally press against the positioning part 501 after placement, avoiding the risk of loosening before mold closing. Simultaneously, the upward-facing arrangement of the rivet 5's heads conforms to the force transmission direction of the stamping process, optimizing the metal flow path.

[0037] The head of the rivet 5 is provided with a groove 504 for engaging with the lower part of the punch 3. The groove 504 on the head of the rivet 5 and the lower end of the punch 3 form a complementary fitting structure, achieving precise alignment in the initial stage of stamping. The sidewall of the groove 504 guides the force of the punch 3 to concentrate on the central axis of the rivet 5, preventing asymmetrical deformation of the riveting part 502 caused by eccentric load. The groove depth controls the starting position of material flow, allowing the riveting part 502 to expand outward while maintaining the thickness of the central area of ​​the head, preventing the punch 3 from directly penetrating the head of the rivet 5.

[0038] The upper template assembly 1 includes an upper template that is fixed to the punch 3 and a lower template that is fixed to the positioning seat 4; The number of punches 3 is two or more, and the number of positioning seats 4 is two or more, with the punches 3 and positioning seats 4 arranged in a one-to-one correspondence.

[0039] The one-to-one arrangement of multiple punches 3 and positioning seats 4 enables the synchronous riveting of all mounting holes on the compressor mounting plate 6, improving assembly efficiency and realizing synchronous riveting processing on one machine.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compressor mounting plate rivet mold, comprising a mold body, characterized in that, The mold body includes: Upper template assembly (1) and lower template assembly (2), the upper template assembly (1) and lower template assembly (2) are used to rivet and fix the compressor mounting plate (6) to the rivet (5); Punch (3), the punch (3) is disposed on the upper template assembly (1); Positioning seat (4), the positioning seat (4) is used to install rivets (5) and is set on the lower template assembly (2); The compressor mounting plate (6) is assembled with the rivet (5) of the positioning seat (4), and the mold body is closed. The upper template assembly (1) drives the punch (3) to press down the rivet (5). The head of the rivet (5) is deformed by compression. The head of the rivet (5) spreads along the outer periphery of the mounting hole of the compressor mounting plate (6) and presses against the upper part of the compressor mounting plate (6).

2. The compressor mounting plate rivet mold according to claim 1, characterized in that: The punch (3) acts on the lower end of the rivet (5) and has a first taper (301).

3. The compressor mounting plate rivet mold according to claim 1, characterized in that: The rivet (5) has a positioning part (501) on the lower outer side of its head. The head of the rivet (5) passes through the mounting hole of the compressor mounting plate (6), the positioning part (501) is located on the lower surface of the mounting hole, and the head of the rivet (5) extends out of the upper surface of the mounting hole and forms a riveting part (502) when the punch (3) presses down. After the riveting is completed, the compressor mounting plate (6) is clamped between the riveting part (502) and the positioning part (501) to achieve axial fixation.

4. The compressor mounting plate rivet mold according to claim 1, characterized in that: The positioning seat (4) is provided with a mounting cavity (401) for inserting a rivet (5), and the depth of the mounting cavity (401) is greater than the length of the rivet (5) insertion section.

5. The compressor mounting plate rivet mold according to claim 4, characterized in that: The lower part of the rivet (5) is provided with a second taper (503) for guiding the rivet (5) into the mounting cavity (401).

6. The compressor mounting plate rivet mold according to claim 1, characterized in that: The positioning seat (4) is fixed on the lower template assembly (2), or the positioning seat (4) is detachably installed on the lower template assembly (2).

7. The compressor mounting plate rivet mold according to claim 1, characterized in that: The punch (3) is fixed on the upper template assembly (1), or the punch (3) is detachably installed on the upper template assembly (1).

8. The compressor mounting plate rivet mold according to claim 1, characterized in that: The positioning seat (4) extends upward above the lower template assembly (2) to axially fix the rivet (5) and make the head of the rivet (5) face the upper template assembly (1).

9. The compressor mounting plate rivet mold according to claim 1, characterized in that: The head of the rivet (5) is provided with a groove (504) for engaging with the lower part of the punch (3).

10. The compressor mounting plate rivet mold according to claim 1, characterized in that: The upper template assembly (1) includes an upper template that is fixed to the punch (3) and a lower template that is fixed to the positioning seat (4); The number of punches (3) is two or more, the number of positioning seats (4) is two or more, and the punches (3) and positioning seats (4) are arranged in a one-to-one correspondence.

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