Alloy powder tamping device

Abstract

This utility model relates to the field of powder metallurgy equipment technology, and in particular to an alloy powder compaction device. It includes a base and a support. A first fixed seat and a second fixed seat are slidably mounted on one side of the support. A telescopic mechanism is fixed on the support, and the output end of the telescopic mechanism is fixedly connected to the upper end of the second fixed seat. A sleeve is detachably connected to the lower end of the first fixed seat, and a rubber sleeve containing alloy powder is placed inside the sleeve. A telescopic connecting rod is provided inside the first fixed seat, with one end of the connecting rod extending out of the first fixed seat and a first fixing block fixed to its end. A second fixing block is fixed to one side of the second fixed seat, with the end of the second fixing block located below the first fixing block. A third fixing block is fixed on the support, located directly above the first fixing block, and the second and third fixing blocks are offset. Mechanical vibration is used to reduce the compaction error of the alloy powder in multiple rubber sleeves, ensuring the uniformity of product quality.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy equipment technology, and in particular to an alloy powder compaction device. Background Technology

[0002] Powder metallurgy is a process technology that uses metal powders to manufacture metal materials through molding and sintering. The basic steps of powder metallurgy include: powder mixing, isostatic pressing, sintering, and molding. After the alloy powder is uniformly mixed, it is placed into a plastic sleeve mold for isostatic pressing. The alloy powder has a loose thickness within the plastic sleeve; under the same isostatic pressing conditions, different loose thicknesses will produce different products.

[0003] Currently, the compaction of alloy powder placed in the rubber sleeve involves manually lifting the sleeve and allowing it to fall naturally onto the operating platform under gravity. This process is repeated multiple times to achieve the required compaction degree for the alloy powder. However, the vibration intensity and frequency vary during manual compaction, resulting in differences in the quality of the produced products and making it impossible to guarantee product quality uniformity. Summary of the Invention

[0004] To address the issue of inconsistent product quality caused by vibration compaction of alloy powder in existing rubber sleeves under the same isostatic pressing conditions, this invention proposes an alloy powder vibration compaction device. This device uses mechanical vibration to reduce the compaction error of alloy powder in multiple rubber sleeves, thereby ensuring product quality uniformity.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An alloy powder compaction device includes a base and a support. The support is fixed on the base. A first fixed seat and a second fixed seat are slidably arranged on one side of the support. A telescopic mechanism is fixed on the support. The output end of the telescopic mechanism is fixedly connected to the upper end of the second fixed seat. A sleeve is detachably connected to the lower end of the first fixed seat. A rubber sleeve containing alloy powder is placed inside the sleeve. The rubber sleeve includes a cylinder and a cover. The alloy powder is filled into the cylinder to occupy about 95% of the cylinder's internal space. The cylinder is then sealed with the cover and inserted into the sleeve for compaction.

[0007] The first fixed base is equipped with a telescopic connecting rod. One end of the connecting rod extends out of the first fixed base and is fixed to a first fixed block. A second fixed block is fixed to one side of the second fixed base. The first and second fixed blocks are located between the first and second fixed bases. The end of the second fixed block away from the second fixed base is located below the first fixed block. A third fixed block is fixed on the bracket and is located directly above the first fixed block. The upper end surface of the first fixed block is a first inclined surface, and the lower end surface of the third fixed block is a second inclined surface. The first and second inclined surfaces cooperate with each other, and the second and third fixed blocks are offset. The second fixed base drives the first fixed base to move upward. After moving to a certain height, the first fixed base detaches from the second fixed base, and under the action of gravity, the sleeve at its lower end falls freely onto the base, realizing the vibration of the alloy powder in the rubber sleeve inside the sleeve.

[0008] Preferably, a sliding seat is fixed on one side of the bracket, and a first sliding groove is vertically opened on the sliding seat. A first slider is slidably arranged in the first sliding groove, and the end of the first slider away from the bracket extends out of the first sliding groove and its end is connected and fixed to the first fixing block.

[0009] Preferably, the lower end of the sliding seat is closed. This prevents the first slider from directly disengaging from the sliding seat, thereby determining the lowest point of the first fixed block.

[0010] Preferably, a vertical slide rail is fixed on one side of the bracket, and a second slide groove that mates with the slide rail is provided on the second fixing block.

[0011] Preferably, the telescopic mechanism is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0012] Preferably, a fixing plate is fixed at the lower end of the first fixing seat. The fixing plate has a plurality of third sliding grooves circumferentially opened. A sliding plate in the shape of an inverted "L" is slidably arranged in the third sliding groove. A bolt is threadedly connected to the sliding plate. The bolt passes downward through the sliding plate and contacts the upper surface of the fixing plate.

[0013] An annular flange is fixed on the outer wall of the sleeve. The lower end of the sliding plate extends out of the third sliding groove and a limiting part is fixed at its end. The limiting part is located below the flange and its end contacts the outer surface of the sleeve inward.

[0014] Preferably, the first fixed seat has a fourth sliding groove, which includes a first groove and a second groove from the inside to the outside. The area of ​​the longitudinal section of the first groove is smaller than that of the longitudinal section of the second groove. A sliding rod is slidably disposed in the first groove, and a sliding block is slidably disposed in the second groove. The end of the sliding rod is fixedly connected to the sliding block. A spring is sleeved on the sliding rod. The spring is located in the second groove and its two ends are in contact with the side wall of the second groove. The sliding block is fixedly connected to one side of the connecting rod.

[0015] The beneficial effects of this utility model through the above technical solution are as follows:

[0016] 1. In the initial position, the end of the second fixing block away from the second fixing seat is located below the first fixing block. Driven by the telescopic mechanism, the second fixing block drives the first fixing block to move upward. When the first inclined surface at the upper end of the first fixing block contacts the second inclined surface of the third fixing block, the first fixing block drives the connecting rod to move towards the first fixing seat. At this time, the first fixing block disengages from the second fixing block, and then the first fixing seat falls under the action of gravity, thereby completing the vibration of the alloy powder in the inner sleeve of the sleeve. The mechanical vibration reduces the error of the compaction of the alloy powder in multiple sleeves, ensures the uniformity of product quality, meets product quality requirements, and reduces the labor intensity of on-site workers.

[0017] 2. The fixed plate of this utility model is provided with multiple third sliding grooves, and a sliding plate is slidably arranged in the third sliding groove. Bolts are screwed onto the sliding plate to fix the position of the sliding plate in the third sliding groove. This can adapt to different sleeves and rubber sleeves and improve the application range of this device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an alloy powder compaction device according to the present invention;

[0019] Figure 2 This utility model relates to an alloy powder compaction device. Figure 1 Schematic diagram of the structure at point A;

[0020] Figure 3 This utility model relates to an alloy powder compaction device. Figure 1 Schematic diagram of the structure at point B;

[0021] Figure 4 This is a schematic diagram of the part of the structure in contact between the first inclined surface of the first fixed block and the second inclined surface of the third fixed block of the alloy powder compaction device of this utility model.

[0022] Figure 5 This utility model relates to an alloy powder compaction device. Figure 4 An enlarged front view;

[0023] Figure 6 This utility model relates to an alloy powder compaction device. Figure 4 An enlarged top view;

[0024] Figure 7 This is a front view of the sleeve of an alloy powder compaction device according to the present invention;

[0025] Figure 8 This utility model relates to an alloy powder compaction device. Figure 7 Structural cross-sectional view at point AA;

[0026] Figure 9 This is an enlarged view of the structure of the fourth sliding groove inside the first fixed seat of the alloy powder compaction device of this utility model.

[0027] In the attached diagram, the following numbers are used: 1 is the base, 2 is the bracket, 3 is the first fixed seat, 4 is the second fixed seat, 5 is the telescopic mechanism, 6 is the sleeve, 7 is the rubber sleeve, 8 is the connecting rod, 9 is the first fixed block, 10 is the second fixed block, 11 is the third fixed block, 12 is the first inclined surface, 13 is the second inclined surface, 14 is the sliding seat, 15 is the first slide groove, 16 is the first slider, 17 is the slide rail, 18 is the fixed plate, 19 is the third slide groove, 20 is the sliding plate, 21 is the bolt, 22 is the flange, 23 is the limiting part, 24 is the first groove, 25 is the second groove, 26 is the sliding rod, 27 is the sliding block, 28 is the spring, 29 is the first mounting plate, and 30 is the second mounting plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1-9 As shown, this embodiment provides an alloy powder compaction device, including a base 1 and a support 2. The support 2 is welded and fixed on the base 1, and the base 1 is fixed to the floor of the workshop by bolts. A first fixed seat 3 and a second fixed seat 4 are slidably arranged on one side of the support 2.

[0030] refer to Figure 1 In this embodiment, a sliding seat 14 is bolted to one side of the bracket 2. A first sliding groove 15 is vertically formed on the sliding seat 14. A first slider 16 is slidably disposed within the first sliding groove 15. The end of the first slider 16 away from the bracket 2 extends out of the first sliding groove 15, and its end is fixedly connected to the first fixing block 9 by bolts. In order to determine the lowest point of the vertical movement distance of the first fixing block 9 and to prevent the first slider 16 from directly dislodging from the first sliding groove 15, the lower end of the sliding seat 14 is closed.

[0031] A vertical slide rail 17 is bolted to one side of the bracket 2, and a second sliding groove is provided on the second fixing block 10 to cooperate with the slide rail 17. This ensures the stability of the second fixing block 10 when it moves up and down.

[0032] Furthermore, a first mounting plate 29 is fixed to the bracket 2, and a telescopic mechanism 5 is fixed to the first mounting plate 29. The telescopic mechanism 5 can be a cylinder, a hydraulic cylinder, or an electric push rod. The output end of the telescopic mechanism 5 is welded and fixed to the upper end of the second fixed seat 4. A sleeve 6 is detachably connected to the lower end of the first fixed seat 3. A rubber sleeve 7 containing alloy powder is placed inside the sleeve 6. The rubber sleeve 7 includes a cylinder and a cover. The alloy powder filling the cylinder occupies about 95% of the internal space. In actual production, the rubber sleeve 7 is a mold for rubber products.

[0033] refer to Figure 3 , Figure 7 and Figure 8 In this embodiment, a fixing plate 18 is welded and fixed to the lower end of the first fixing seat 3. The fixing plate 18 is evenly provided with three third sliding grooves 19 in the circumferential direction. A sliding plate 20 in the shape of an inverted "L" is slidably arranged in each third sliding groove 19. A bolt 21 is threadedly connected to the sliding plate 20. After the bolt 21 passes downward through the sliding plate 20, it contacts the upper surface of the fixing plate 18, thereby positioning the sliding plate 20 in the third sliding groove 19.

[0034] Furthermore, an annular flange 22 is fixed on the outer wall of the sleeve 6. The lower end of the sliding plate 20 extends out of the third sliding groove 19, and a limiting part 23 is fixed at its end. The limiting part 23 is located below the flange 22, and its end contacts the outer surface of the sleeve 6 inward. The three limiting parts 23 limit the flange 22 from three directions, thereby achieving stable placement of the sleeve 6 under the fixed plate 18. At the same time, the position of the upper end face of the limiting part 23 to the lower end face of the fixed plate 18 is equal to the thickness of the flange, preventing the sleeve 6 from shaking during up and down movement.

[0035] refer to Figure 2 and Figure 9 The first fixed base 3 is provided with a telescopic connecting rod 8. One end of the connecting rod 8 extends out of the first fixed base 3 and is fixed with a first fixing block 9. In this embodiment, the first fixed base 3 is provided with a fourth sliding groove. The fourth sliding groove includes a first groove body 24 and a second groove body 25 from the inside to the outside. The longitudinal cross-sectional area of ​​the first groove body 24 is smaller than that of the second groove body 25. A sliding rod 26 is slidably disposed in the first groove body 24, and a sliding block 27 is slidably disposed in the second groove body 25. The end of the sliding rod 26 is fixedly connected to the sliding block 27. A spring 28 is sleeved on the sliding rod 26. The spring 28 is located in the second groove body 25 and its two ends are in contact with the side wall of the second groove body 25. The sliding block 27 is connected and fixed to one side of the connecting rod 8. The second mounting plate 30 is fixed to one side of the first fixing block 9 by bolts to realize the installation of the sliding rod 26 and the sliding block 27 in the fourth sliding groove.

[0036] refer to Figure 2A second fixing block 10 is fixed on one side of the second fixing seat 4. The first fixing block 9 and the second fixing block 10 are located between the first fixing seat 3 and the second fixing seat 4. The end of the second fixing block 10 away from the second fixing seat 4 is located below the first fixing block 9. When the telescopic mechanism 5 drives the second fixing seat 4 to move upward, the second fixing block 10 presses against the lower end face of the first fixing block 9, causing the first fixing seat 3 to move upward.

[0037] A third fixing block 11 is fixed on the bracket 2. The third fixing block 11 is located directly above the first fixing block 9. The upper end surface of the first fixing block 9 is a first inclined surface 12, and the lower end surface of the third fixing block 11 is a second inclined surface 13. The first inclined surface 12 and the second inclined surface 13 cooperate with each other. (Reference) Figure 4 and Figure 5 After the first fixed seat 3 moves upward a certain distance, the first inclined surface 12 of the upper end of the first fixed block 9 contacts the second inclined surface 13 of the lower end of the third fixed block 11, causing the connecting rod 8 to drive the first fixed block 9 to move towards the first fixed seat 3. After moving a certain distance, the first fixed block 9 disengages from the second fixed block 10 (e.g., Figure 6 The second fixing block 10 and the third fixing block 11 are misaligned. The second fixing block 10 continues to move upward, while the first fixing seat 3 moves downward under the action of gravity, completing one vibration of the alloy powder in the inner rubber sleeve 7 of the sleeve 6.

[0038] After one vibration of the rubber sleeve 7, the telescopic mechanism 5 drives the 4 to move downwards. The lower end face of the second fixed block 10 contacts the first inclined surface 12 at the upper end of the first fixed block 9. The connecting rod 8 drives the first fixed block 9 to move closer to the first fixed seat 3. After the second fixed block 10 returns to the lower side of the first fixed block 9, the first fixed block 9 resets under the elastic force of the spring, and the vibration of the rubber sleeve 7 can begin again. The number of vibrations varies for different alloy powders. For isostatic pressing of the same alloy powder, the same number of vibrations can be achieved by this device to improve the uniformity of product quality.

[0039] In another possible implementation, second fixed seats 4 can be provided on both sides of the first fixed seat 3, and the telescopic mechanisms on the two second fixed seats 4 can be activated synchronously to ensure the stability of the first fixed seat 3 when it moves upward.

[0040] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An alloy powder tamping device comprising a base (1) and a holder (2) fixed to the base (1), characterized in that, The bracket (2) has a first fixed seat (3) and a second fixed seat (4) that slide up and down on one side. The bracket (2) has a telescopic mechanism (5) fixed on it. The output end of the telescopic mechanism (5) is fixedly connected to the upper end of the second fixed seat (4). The lower end of the first fixed seat (3) is detachably connected to a sleeve (6). A rubber sleeve (7) containing alloy powder is placed inside the sleeve (6). The first fixed seat (3) is provided with a telescopic connecting rod (8). One end of the connecting rod (8) extends out of the first fixed seat (3) and a first fixed block (9) is fixed at its end. A second fixed block (10) is fixed on one side of the second fixed seat (4). The first fixed block (9) and the second fixed block (10) are located between the first fixed seat (3) and the second fixed seat (4). The end of the second fixed block (10) away from the second fixed seat (4) is located below the first fixed block (9). The bracket (2) is fixed with a third fixing block (11), which is located directly above the first fixing block (9). The upper end surface of the first fixing block (9) is a first inclined surface (12), and the lower end surface of the third fixing block (11) is a second inclined surface (13). The first inclined surface (12) and the second inclined surface (13) cooperate with each other, and the second fixing block (10) and the third fixing block (11) are misaligned.

2. The alloy powder tamping device of claim 1, wherein A sliding seat (14) is fixed on one side of the bracket (2). A first sliding groove (15) is vertically opened on the sliding seat (14). A first slider (16) is slidably arranged in the first sliding groove (15). The end of the first slider (16) away from the bracket (2) extends out of the first sliding groove (15) and its end is connected and fixed to the first fixing block (9).

3. The alloy powder tamping device of claim 2, wherein The lower end of the sliding seat (14) is closed.

4. The alloy powder tamping device of claim 1, wherein The bracket (2) has a vertical slide rail (17) fixed on one side, and the second fixing block (10) has a second slide groove that cooperates with the slide rail (17).

5. The alloy powder tamping device of claim 1, wherein The telescopic mechanism (5) is a cylinder, a hydraulic cylinder, or an electric push rod.

6. The alloy powder tamping device of claim 1, wherein The lower end of the first fixed seat (3) is fixed with a fixed plate (18). The fixed plate (18) has multiple third sliding grooves (19) circumferentially opened. A sliding plate (20) in the shape of an inverted "L" is slidably arranged in the third sliding groove (19). A bolt (21) is threaded on the sliding plate (20). After the bolt (21) passes through the sliding plate (20) downward, it contacts the upper surface of the fixed plate (18). An annular flange (22) is fixed on the outer wall of the sleeve (6). The lower end of the sliding plate (20) extends out of the third sliding groove (19) and a limiting part (23) is fixed at its end. The limiting part (23) is located on the lower side of the flange (22) and the end of the limiting part (23) contacts the outer side of the sleeve (6) inward.

7. The alloy powder tamping device of claim 1, wherein The first fixed seat (3) has a fourth sliding groove. The fourth sliding groove includes a first groove (24) and a second groove (25) from the inside to the outside. The area of ​​the longitudinal section of the first groove (24) is smaller than the area of ​​the longitudinal section of the second groove (25). A sliding rod (26) is slidably arranged in the first groove (24). A sliding block (27) is slidably arranged in the second groove (25). The end of the sliding rod (26) is fixedly connected to the sliding block (27). A spring (28) is sleeved on the sliding rod (26). The spring (28) is located in the second groove (25) and its two ends are in contact with the side wall of the second groove (25). The sliding block (27) is fixedly connected to one side of the connecting rod (8).

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