Gear type powder metallurgy part forming die
By designing a mold for forming powder metallurgy parts such as gears, the combined motion of mold components is used to directly form grooves on the surface of gears, solving the problem that traditional molds cannot form gear grooves, thus improving production efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional powder metallurgy part forming dies cannot effectively form grooves on the surface of gears when pressing them, resulting in additional processing after forming and increasing workload.
A mold for forming gear-type powder metallurgy parts was designed, comprising components such as a mold base, a lower punch base, a lower punch cover, a lower punch core, an upper punch base, an upper punch cover, and an upper punch core, which achieve direct forming of grooves on the surface of the gear through combined motion.
This technology enables the direct forming of grooves on the gear surface, avoiding additional processing after forming, thus improving production efficiency and reducing production costs.
Smart Images
Figure CN224026497U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to powder metallurgy mould technical field, concretely is a gear class powder metallurgy part forming die. BACKGROUND
[0002] Powder metallurgy part forming die plays a vital role in the manufacturing process, directly affects the quality, precision and production efficiency of the part, the die can ensure that the powder is uniformly distributed in the pressing process, reduces the generation of density uneven and defects, thereby improves the mechanical properties and consistency of the part, powder metallurgy part forming die can reduce maintenance cost, and improves production efficiency, in short, high-quality powder metallurgy forming die not only improves the quality of the part, but also optimizes the production process, reduces the production cost, promotes the development of powder metallurgy technology.
[0003] In the prior art, the traditional powder metallurgy part forming die is mainly composed of a die cavity, a punch and a die frame, the die cavity determines the shape of the part, the punch applies pressure to make the powder form, and the die frame supports and fixes the parts, thereby meeting the powder metallurgy part forming production demand.
[0004] However, when the traditional powder metallurgy part forming die is used for pressing and forming the gear, the die cannot press and form the groove on the surface of the gear, so that the formed gear part needs to be additionally processed for the groove, which increases the workload to a certain extent, therefore, the utility model provides a gear class powder metallurgy part forming die to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a gear class powder metallurgy part forming die to solve the problems in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme: a gear class powder metallurgy part forming die, the gear class powder metallurgy part forming die includes: a die holder, a lower punch holder is installed below the die holder, a lower punch cover is arranged in the lower punch holder, and a lower punch core is arranged in the lower punch cover.
[0007] An upper punch holder is installed in the lower end of the upper punch holder, an upper punch cover is arranged in the upper punch cover, and an upper punch core is arranged in the upper punch cover.
[0008] Preferably, one end of the lower punch core is located in the die holder, the other end of the lower punch core is provided with a connecting block, the outer wall of the lower punch core is sleeved with the lower punch cover, and the lower punch core can be displaced up and down in the lower punch cover.
[0009] Preferably, one end of the lower punch cover is located in the die holder, the other end of the lower punch cover is provided with a mounting plate, a plurality of mounting holes are formed in the surface of the mounting plate, the outer wall of the lower punch cover is sleeved with the lower punch holder, and the lower punch cover can be displaced up and down in the lower punch holder.
[0010] Preferably, the die seat surface is provided with a die cavity, and a lower punch cover is arranged in the die cavity and can move up and down in the die cavity.
[0011] Preferably, the upper punch cover is in a whole cylindrical structure, the outer wall of the upper punch cover is fitted with the side surface of the die cavity, the upper punch cover can move up and down in the die cavity, a die hole is arranged at the center of the surface of the upper punch cover, the surface of the die hole is fitted with the outer wall of the lower punch core, the lower punch core can move up and down in the die hole, and a plurality of core grooves are arranged on the surface of the upper punch cover.
[0012] Preferably, the core grooves are arranged in a whole circumferential array, an upper punch core is arranged in the core groove, one end of the upper punch core is fixedly connected with a connecting rod, a threaded hole is arranged at the end of the connecting rod away from the upper punch cover, and a cap is screwed in the threaded hole.
[0013] Preferably, one end of the upper punch seat is fixedly connected with the upper punch cover, the other end of the upper punch seat is fixedly connected with a pressing groove box, a plurality of holes are arranged on the bottom surface of the pressing groove box, a connecting rod is arranged in the hole, a spring member is fixedly connected above the hole, the spring member is sleeved on the outer wall surface of the connecting rod, and the spring member is clamped between the cap and the inner wall surface of the pressing groove box.
[0014] Preferably, a plurality of sliding grooves are arranged on the inner wall side surface of the pressing groove box, a sliding plate is clamped in the sliding groove, the sliding plate is connected with the sliding groove through a sliding block, a plurality of threaded holes are arranged on the surface of the sliding plate, a pressing plate is arranged on the surface of the sliding plate, a plurality of screw rods are arranged on the surface of the pressing plate, threaded holes are screwed on the outer surfaces of the screw rods, and the bottom surface of the pressing plate is attached to the top surface of the cap.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] The gear powder metallurgy part forming die provided by the utility model can push material powder into the die seat through a special device, and the lower punch core, the lower punch cover and the lower punch seat in the die seat are adjusted at appropriate positions. Then, the upper punch seat is pressed downward towards the die seat, and at the same time, the lower punch core is placed in the upper punch cover, and the upper punch core in the upper punch cover also applies pressure, so that the gear surface is formed with a groove, thereby facilitating the forming of the gear with a groove on the surface. In this way, the problem that the gear needs to be additionally machined after forming is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a structural cross-sectional schematic diagram of the utility model;
[0019] Figure 3 It is a lower punch module schematic diagram of the utility model;
[0020] Figure 4 It is the internal structure schematic view of the structure upper punch module of the utility model.
[0021] Figure 5 It is the internal structure schematic view of the structure pressure groove box of the utility model.
[0022] In the figure: 1, die holder; 2, lower punch holder; 3, lower punch cover; 4, lower punch core; 5, upper punch holder; 6, upper punch cover; 7, upper punch core; 8, connecting block; 9, pressing plate; 10, sliding plate; 11, mounting plate; 12, die cavity; 13, die hole; 14, core groove; 15, connecting rod; 16, cap; 17, pressure groove box; 18, spring piece; 19, sliding groove. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme of the utility model to carry out clear, complete description, and the advantage is more clear and clear, the following combining with the figure to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, is used to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without doing the creative work, belong to the scope of the protection of the utility model.
[0024] Embodiment one: please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a gear powder metallurgy part forming die, the gear powder metallurgy part forming die includes: die holder 1, die holder 1 below is equipped with lower punch holder 2, lower punch holder 2 is provided with lower punch cover 3, lower punch cover 3 is provided with lower punch core 4 in;
[0025] Upper punch holder 5, upper punch holder 5 is provided with upper punch cover 6 in lower end, and upper punch cover 6 is provided with upper punch core 7 in;
[0026] When using, material powder can be pushed into die holder 1 by special equipment, and lower punch core 4, lower punch cover 3 and lower punch holder 2 in die holder 1 are all adjusted at suitable position, then upper punch holder 5 is pressed towards die holder 1 direction, and lower punch core 4 is placed in upper punch cover 6 inside while pressing, and upper punch core 7 in upper punch cover 6 also applies pressure to, so that gear surface forming groove is formed, so as to facilitate the gear with groove on surface, which avoids the problem that the gear after forming needs to be additionally machined groove.
[0027] In order to facilitate the disassembly of the mold, a pressing groove box 17 is arranged on the basis of example one, a plurality of sliding grooves 19 are arranged on the inner wall side of the pressing groove box 17, a sliding plate 10 is clamped into the sliding groove 19, the sliding plate 10 is connected with the sliding groove 19 through sliding block connection, a plurality of threaded holes are arranged on the surface of the sliding plate 10, a pressing plate 9 is arranged on the surface of the sliding plate 10, a plurality of screw rods are arranged on the surface of the pressing plate 9, the screw rod is externally screwed with a threaded hole, and the bottom surface of the pressing plate 9 is attached to the top surface of the cap 16; the sliding plate 10 is clamped into the sliding groove 19 in the inner wall of the pressing groove box 17, and the sliding plate 10 is connected with the screw rod arranged on the surface of the pressing plate 9 through the threaded holes arranged on the surface, so as to fix the pressing plate 9 on the surface of the sliding plate 10 as a whole; if it is necessary to check the internal condition of the pressing groove box 17, the screw rod only needs to be disassembled, and the pressing plate 9 is removed from the surface of the sliding plate 10, so as to facilitate the disassembly of the mold.
[0028] The core groove 14 is arranged in a circumferential array as a whole, the core groove 14 is provided with an upper punch core 7, one end of the upper punch core 7 is fixedly connected with a connecting rod 15, a threaded hole is arranged on the end of the connecting rod 15 away from the upper punch cover 6, and a cap 16 is screwed into the threaded hole; a threaded hole is arranged on the upper end of the connecting rod 15 of the upper punch core 7, and a cap 16 is screwed into the threaded hole; the spring member 18 is clamped on the surface of the connecting rod 15 through the cap 16; if it is necessary to replace the spring member 18, the cap 16 can be disassembled from the threaded hole, so as to facilitate the replacement of the spring member 18.
[0029] In order to make the mold better form the gear part, a mold base 1 is arranged on the basis of example two, a mold cavity 12 is arranged on the surface of the mold base 1, a lower punch cover 3 is arranged in the mold cavity 12, and the lower punch cover 3 can move up and down in the mold cavity 12; one end of a lower punch core 4 is located in the mold base 1, the other end of the lower punch core 4 is provided with a connecting block 8, the lower punch core 4 is sleeved with the lower punch cover 3, and the lower punch core 4 can move up and down in the lower punch cover 3; when the pressing forming is performed, the lower punch core 4 is first inserted into the mold hole 13 of the upper punch cover 6, so as to form the shaft hole of the gear part.
[0030] One end of the lower punch cover 3 is located in the mold base 1, the other end of the lower punch cover 3 is provided with a mounting plate 11, a plurality of mounting holes are arranged on the surface of the mounting plate 11, the lower punch cover 3 is sleeved with a lower punch base 2, and the lower punch cover 3 can move up and down in the lower punch base 2; in the process of forming the gear part, the lower punch base 2 and the lower punch cover 3 adjust the position of the parts, so as to adjust the forming specifications of the gear part, after the pressing is completed, the lower punch plate 9 moves upward to eject the gear part, so as to complete the demolding of the gear part.
[0031] The upper stamping cover 6 is in a cylindrical structure as a whole, the outer wall of the upper stamping cover 6 is fitted with the side surface of the mold cavity 12, the upper stamping cover 6 can move up and down in the mold cavity 12, a mold hole 13 is arranged at the center of the surface of the upper stamping cover 6, the surface of the mold hole 13 is fitted with the outer wall of the lower stamping core 4, the lower stamping core 4 can move up and down in the mold hole 13, a plurality of core grooves 14 are arranged on the surface of the upper stamping cover 6; one end of the upper stamping seat 5 is fixedly connected with the upper stamping cover 6, the other end of the upper stamping seat 5 is fixedly connected with a pressure groove box 17, a plurality of holes are arranged on the bottom surface of the pressure groove box 17, a connecting rod 15 is arranged in the hole, a spring member 18 is fixedly connected above the hole, the spring member 18 is sleeved on the outer wall surface of the connecting rod 15, and the spring member 18 is clamped between the cap 16 and the inner wall surface of the pressure groove box 17; when forming, the upper stamping seat 5 is connected with equipment, so that the upper stamping cover 6 applies downward force to the direction of the mold base 1, and according to the groove specification, the pressure plate 9 is connected with the power device, so that the upper stamping core 7 applies downward pressure, thereby the groove on the surface of the gear member is pressed and formed.
[0032] Working principle: in actual use, the material powder can be pushed into the mold base 1 through special equipment, the lower stamping core 4, the lower stamping cover 3 and the lower stamping seat 2 in the mold base 1 are adjusted at appropriate positions, then the upper stamping seat 5 is pressed downward to the direction of the mold base 1, at the same time, the lower stamping core 4 is placed inside the upper stamping cover 6, and the upper stamping core 7 in the upper stamping cover 6 also applies pressure, so that the gear surface is formed with a groove, thereby the gear with a groove on the surface is conveniently formed, and the problem that the gear needs to be additionally machined after forming is avoided.
[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A molding die for gear-type powder metallurgy parts, characterized in that: The gear-type powder metallurgy part forming mold includes: a mold base (1), a lower punch (2) installed below the mold base (1), a lower punch cover (3) provided inside the lower punch (2), and a lower punch die core (4) provided inside the lower punch cover (3). Upper punch seat (5), upper punch cover (6) is installed at the lower end of the upper punch seat (5), and upper punch die core (7) is provided inside the upper punch cover (6). The upper stamping cover (6) is cylindrical in shape. The outer wall of the upper stamping cover (6) fits the side of the mold cavity (12). The upper stamping cover (6) can move up and down in the mold cavity (12). A mold hole (13) is opened at the center of the surface of the upper stamping cover (6). The surface of the mold hole (13) fits the outer wall of the lower stamping die core (4). The lower stamping die core (4) can move up and down in the mold hole (13). Several core grooves (14) are opened on the surface of the upper stamping cover (6). The core groove (14) is arranged in a circular array. An upper punch core (7) is provided in the core groove (14). A connecting rod (15) is fixedly connected to one end of the upper punch core (7). A threaded hole is opened at the end of the connecting rod (15) away from the upper punch cover (6). A cap (16) is screwed into the threaded hole.
2. The gear-type powder metallurgy part forming mold according to claim 1, characterized in that: One end of the lower punch core (4) is located inside the die base (1), and the other end of the lower punch core (4) is equipped with a connecting block (8). The outer wall of the lower punch core (4) is fitted with a lower punch cover (3), and the lower punch core (4) can move up and down inside the lower punch cover (3).
3. The gear-type powder metallurgy part forming mold according to claim 1, characterized in that: One end of the lower punch cover (3) is located inside the mold base (1), and the other end of the lower punch cover (3) is equipped with an mounting plate (11). The surface of the mounting plate (11) has several mounting holes. The outer wall of the lower punch cover (3) is fitted with a lower punch seat (2), and the lower punch cover (3) can move up and down inside the lower punch seat (2).
4. The gear-type powder metallurgy part forming mold according to claim 1, characterized in that: The mold base (1) has a mold cavity (12) on its surface, and a lower punch cover (3) is provided inside the mold cavity (12). The lower punch cover (3) can move up and down inside the mold cavity (12).
5. The gear-type powder metallurgy part forming mold according to claim 1, characterized in that: One end of the upper punch seat (5) is fixedly connected to the upper punch cover (6), and the other end of the upper punch seat (5) is fixedly connected to the pressure groove box (17). The bottom surface of the pressure groove box (17) has several holes, and a connecting rod (15) is installed in the hole. A spring (18) is fixedly connected directly above the hole. The spring (18) is sleeved on the outer wall surface of the connecting rod (15), and the spring (18) is stuck between the cap (16) and the inner wall surface of the pressure groove box (17).
6. The gear-type powder metallurgy part forming mold according to claim 5, characterized in that: The inner wall of the pressure box (17) has several sliding grooves (19), and a sliding plate (10) is inserted into the sliding groove (19). The sliding plate (10) and the sliding groove (19) are connected by a slider. The surface of the sliding plate (10) has several threaded holes. A pressure plate (9) is provided on the surface of the sliding plate (10). A number of screws are provided on the surface of the pressure plate (9). The screws are threaded with threaded holes. The bottom surface of the pressure plate (9) is in contact with the top surface of the cap (16).