Powder metallurgy pressing equipment

Abstract

The utility model relates to the technical field of pressing equipment, in particular to powder metallurgy pressing equipment which comprises a workbench, a moving groove is formed in the middle of the workbench, a lower die is slidably connected in the moving groove, sliding grooves are formed in the two sides of the inner wall of the moving groove, and the sliding grooves are slidably connected with protruding parts on the two sides of the lower die. The bottom of the lower mold is connected with a bottom plate through a protruding fixing plate, the top plate is matched with the bottom plate to push out a finished product, and the two ends of the top of the lower mold extend to be slidably connected with the surface of the workbench. The demolding mechanism comprises a top plate, a limiting plate, a second hydraulic machine and a demolding support, the top plate is slidably connected with the demolding opening, the second hydraulic machine is fixedly connected to the lower surface of the top plate and fixedly connected with the demolding support, and the two ends of the demolding support are fixedly connected to the lower surface of the workbench. The working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressing equipment technology, and more specifically to a powder metallurgy pressing equipment. Background Technology

[0002] Powder metallurgy is a process technology that manufactures various materials and products by pressing metal or metal powders. In this process, the metal material is pressed into the desired shape and size. Powder metallurgy has obvious advantages, such as its ability to easily process special materials, including refractory metals and compounds, pseudo-alloys, and porous materials. In addition, because powder metallurgy can press materials into the final billet in a single operation, it can reduce production costs.

[0003] When pressing metal powder using a pressing device, after the upper mold presses the lower mold, the lower mold usually needs to be removed and flipped over, and then demolded again by a hydraulic press. This demolding method can easily damage the pressed mold, and the process is complicated and affects work efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a powder metallurgy pressing device to solve the problem that in the present invention, when pressing metal powder with a pressing device, after pressing the lower mold with the upper mold, it is usually necessary to remove the lower mold and flip it over, and then demold it again with a hydraulic press. This demolding method is prone to damage to the pressed mold, and the process is complicated and affects work efficiency.

[0005] This utility model provides the following technical solution: a powder metallurgy pressing device, including a workbench, a movable groove is provided in the middle of the workbench, a lower mold is slidably connected in the movable groove, a mold cavity is provided through the center of the lower mold, a limiting boss is provided at the bottom of the inner wall of the mold cavity, a bottom plate that can move up and down is provided through the limiting boss at the bottom of the inner side of the mold cavity, a demolding port is provided through the bottom of one end of the movable groove, and a demolding mechanism is fixedly connected to the demolding port;

[0006] The demolding mechanism includes a demolding bracket. The demolding bracket is provided on the lower surface of the workbench at the position corresponding to the demolding opening. A second hydraulic press is provided inside the demolding bracket. The output end of the second hydraulic press is provided with a top plate that matches the demolding opening. The top plate is located directly below the demolding opening.

[0007] Furthermore, the worktable has two symmetrical movable slots at the end away from the demolding port. A lead screw is rotatably installed inside one of the movable slots, and a servo motor is fixedly connected to the outside of the movable slot. The output end of the servo motor is fixedly connected to the lead screw. A slide rod is installed inside the other movable slot.

[0008] Furthermore, the workbench has a through groove between the two movable grooves, the through groove is connected to the movable groove, and a collection port is provided through the bottom of the through groove, with a collection box installed below the collection port.

[0009] Furthermore, a bracket is provided on one end of the workbench surface near the collection box. The two ends of the bracket are slidably connected to the movable groove. The lead screw is threaded to one end of the bracket, and the slide rod is slidably connected to the other end of the bracket. A brush is fixedly installed on the lower surface of the bracket, and the bottom of the brush is on the same horizontal plane as the upper surface of the lower mold.

[0010] Furthermore, two symmetrical first hydraulic presses are fixedly connected to both sides of the middle part of the workbench. A pressure plate is fixedly connected to the output end of the hydraulic press, and an upper mold that cooperates with the lower mold is fixedly connected to the lower surface of the pressure plate.

[0011] Furthermore, two symmetrical limiting plates are installed on the upper surface of the worktable at one end near the demolding mechanism. The limiting plates are L-shaped plates, and the top of the lower mold extends at both ends of the worktable to cooperate with the limiting plates.

[0012] Furthermore, two positioning holes are provided on the bottom surface of the base plate, and the positioning holes are fitted with positioning blocks that are fixedly connected to the upper surface of the top plate.

[0013] Furthermore, sliding grooves are provided on both sides of the inner wall of the moving groove, and the sliding grooves are slidably connected to the protruding parts on both sides of the lower mold.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention uses a bracket, brush, movable groove, lead screw, slide bar, collection port, and collection box to clean the lower mold that enters the moving groove for processing. Residual powder on the lower mold is swept into the collection box to prevent it from affecting the pressing effect. After pressing, the lower mold is moved to the demolding mechanism and fixed by the limiting plate and slide groove. Under the operation of the second hydraulic press, the base plate and the pressed finished product are pushed out of the lower mold for safe removal, which improves work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall test structure of this utility model;

[0019] Figure 4This is a frontal cross-sectional view of the lower mold of this utility model.

[0020] The attached figures are labeled as follows: 1. Workbench; 101. Moving groove; 102. Demolding port; 103. Slide groove; 104. Collection port; 2. Support; 201. Brush; 202. Collection box; 203. Servo motor; 204. Moving groove; 2041. Lead screw; 2042. Slide rod; 3. Lower mold; 301. Base plate; 4. Pressure plate; 401. First hydraulic press; 402. Upper mold; 5. Demolding mechanism; 501. Limiting plate; 502. Top plate; 503. Second hydraulic press; 504. Demolding support. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-4 This utility model provides a powder metallurgy pressing device, including a workbench 1. A movable groove 101 is provided in the middle of the workbench 1. A lower mold 3 is slidably connected in the movable groove 101. The mold cavity at the center of the lower mold 3 is through-hole. A limiting boss is provided at the bottom of the inner wall of the mold cavity. A bottom plate 301 that can move up and down is provided at the bottom of the inner side of the mold cavity through the limiting boss. A demolding port 102 is provided through the bottom of one end of the movable groove 101. A demolding mechanism 5 is fixedly connected to the demolding port 102. Sliding grooves 103 are provided on both sides of the inner wall of the movable groove 101. The sliding grooves 103 are connected to the lower mold 3. The protruding parts on both sides are slidably connected, allowing the lower mold 3 to move within the moving groove 101, thus enabling the lower mold 3 to be moved to various processing positions. The bottom plate 301 of the lower mold 3 is stably installed at the bottom of the lower mold 3 by cooperating with the protruding part at the bottom of the lower mold 3, but it can be moved upward. The protruding part on the upper surface and the protruding part in the middle of the lower mold 3 are slidably connected to the worktable 1 and the slide groove 103 respectively, forming a support, so that the bottom surface of the bottom 301 is relatively floating with the bottom surface of the moving groove 101, preventing falling dust and powder from affecting the displacement of the lower mold.

[0023] The demolding mechanism 5 includes a demolding bracket 504. The demolding bracket 504 is located on the lower surface of the worktable 1 at the position corresponding to the demolding opening 102. A second hydraulic press 503 is installed inside the demolding bracket 504. The output end of the second hydraulic press 503 is provided with a top plate 502 that matches the demolding opening 102. The top plate 502 is located directly below the demolding opening 102. Two symmetrical limiting plates 501 are installed on the upper surface of the worktable 1 at one end near the demolding mechanism 5. The limiting plates 501 are L-shaped plates. The top of the lower mold 3 extends at both ends of the worktable 1 and cooperates with the limiting plates 501. When the lower mold 3 is moved to the limiting plate 501, the protruding part of the upper surface of the lower mold 3 is fixed. At the same time, under the action of the second hydraulic press 503, the top plate 502 passes through the demolding opening 102 and pushes the bottom plate 301 upward, thereby pushing the finished product out of the lower mold 3 for safe removal and improving work efficiency.

[0024] Two symmetrical movable slots 204 are provided at the end of the worktable 1 away from the demolding port 102. A lead screw 2041 is rotatably connected inside one of the movable slots 204. One end of the lead screw 2041 passes through the movable slot 204 and is fixedly connected to the output end of a servo motor 203. The servo motor 203 is fixedly connected to the worktable 1. A sliding rod 2042 is installed inside the other movable slot 204. A through slot is provided between the two movable slots 204 on the worktable 1. The through slot communicates with the moving slot 101 and has a collection port 104 extending through it. A collection box 202 is installed on the lower side of the workbench 1. A bracket 2 is provided at one end of the workbench 1 near the collection box 202. The two ends of the bracket 2 are slidably connected to the movable groove 204. The lead screw 2041 is threadedly connected to one end of the bracket 2, and the slide rod 2042 is slidably connected to the other end of the bracket 2. A brush 201 is fixedly installed on the lower surface of the bracket 2. The bottom of the brush 201 slides in contact with the upper surface of the lower mold 3. The bracket 2 and the brush 201 are moved back and forth by the servo motor 203, so as to sweep off the powder on the surface of the lower mold 3 and prevent it from affecting the finished product.

[0025] Two symmetrical first hydraulic presses 401 are fixedly connected to the two sides of the middle part of the workbench 1. A pressure plate 4 is fixedly connected between the output ends of the hydraulic presses 401. An upper mold 402 is fixedly connected to the lower surface of the pressure plate 4. Under the control of the first hydraulic presses 401, the powder in the lower mold 3 is pressed.

[0026] Two positioning holes are provided on the bottom surface of the base plate 301. The positioning holes are engaged with the positioning blocks fixedly connected to the upper surface of the top plate 502 to position the base plate 301 and further improve work efficiency.

[0027] The working principle of this utility model is as follows: First, after filling the lower mold 3 with enough powder, it is placed into the moving groove 101 through the protruding part of the lower mold 3. Then, the servo motor 203 is turned on to control the brush 201 to clean the upper surface of the lower mold 3 and sweep the excess powder into the collection box 202. Then, under the action of the first hydraulic press 401, the upper mold 402 presses the powder in the lower mold 3. After pressing, the lower mold 3 is moved to the demolding port 102 and limited by the limiting plate 501. Finally, under the action of the second hydraulic press 503, the finished product is ejected from the lower mold 3 through the cooperation of the top plate 502 and the bottom plate 301.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgical pressing apparatus, characterized in that, The device includes a workbench (1), a moving groove (101) is provided in the middle of the workbench (1), a lower mold (3) is slidably connected in the moving groove (101), a mold cavity is provided in the center of the lower mold (3), a limiting boss is provided at the bottom of the inner wall of the mold cavity, and a bottom plate (301) that can move up and down is provided at the bottom of the inner side of the mold cavity through the limiting boss. A demolding port (102) is provided through the bottom of one end of the moving groove (101), and a demolding mechanism (5) is fixedly connected at the demolding port (102). The demolding mechanism (5) includes a demolding bracket (504). The demolding bracket (504) is provided on the lower surface of the workbench (1) at the position corresponding to the demolding port (102). A second hydraulic press (503) is provided inside the demolding bracket (504). The output end of the second hydraulic press (503) is provided with a top plate (502) that matches the demolding port (102). The top plate (502) is located directly below the demolding port (102).

2. A powder metallurgy pressing apparatus according to claim 1, wherein: The workbench (1) has two symmetrical movable slots (204) at one end away from the demolding port (102). A lead screw (2041) is rotatably installed inside one of the movable slots (204), and a servo motor (203) is fixedly connected to the outside of the movable slot (204). The output end of the servo motor (203) is fixedly connected to the lead screw (2041). A slide rod (2042) is installed inside the other movable slot (204).

3. A powder metallurgy pressing apparatus according to claim 2, wherein: The workbench (1) has a through slot between the two movable slots (204), the through slot is connected to the movable slot (101), and a collection port (104) is provided through the bottom of the through slot. A collection box (202) is installed on the lower side of the collection port (104).

4. A powder metallurgy pressing apparatus according to claim 3, wherein: The workbench (1) has a support (2) at one end near the collection box (202). The two ends of the support (2) are slidably connected to the movable groove (204). The lead screw (2041) is threadedly connected to one end of the support (2), and the slide rod (2042) is slidably connected to the other end of the support (2). A brush (201) is fixedly installed on the lower surface of the support (2). The bottom of the brush (201) is on the same horizontal plane as the upper surface of the lower mold (3).

5. A powder metallurgy pressing apparatus as defined in claim 1, wherein: Two symmetrical first hydraulic presses (401) are fixedly connected to the two sides of the middle part of the workbench (1). A pressure plate (4) is fixedly connected to the output end of the hydraulic press (401). An upper mold (402) that cooperates with the lower mold (3) is fixedly connected to the lower surface of the pressure plate (4).

6. A powder metallurgy pressing apparatus as defined in claim 1, wherein: Two symmetrical limiting plates (501) are installed on the upper surface of the workbench (1) at one end near the demolding mechanism (5). The limiting plates (501) are L-shaped plates. The top of the lower mold (3) extends at both ends of the workbench (1) to cooperate with the limiting plates (501).

7. A powder metallurgy pressing apparatus as defined in claim 1, wherein: Two positioning holes are provided on the bottom surface of the base plate (301), and the positioning holes are fitted with positioning blocks that are fixedly connected to the upper surface of the top plate (502).

8. A powder metallurgy pressing apparatus as defined in claim 1, wherein: The sliding grooves (103) are arranged on both sides of the inner wall of the moving groove (101) and are in sliding connection with the protruding parts on both sides of the lower mold (3).

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