A trimming jig for a support product in a metal injection molding process
By designing a shaping fixture for support components in the metal injection molding process, the problem of deformation of complex and thin-walled products during sintering was solved, achieving efficient product shaping and quality improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI 3S MIM TECH
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-03
AI Technical Summary
In metal powder injection molding, products with complex structures and thin walls are prone to deformation during high-temperature sintering, which affects product quality and requires reshaping and correction.
A shaping fixture for support components in a metal injection molding process has been designed, including an upper cover, a lower fixing plate, a shovel, and a buffer assembly. Through the cooperation of the upper cover and the shovel, the upper surface and left and right sides of the product can be shaped simultaneously, and the buffer assembly provides protection.
It enables simultaneous shaping of the top plane and left and right sides of multiple products, improving the forming quality and consistency of the products and reducing deformation.
Smart Images
Figure CN224444593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a shaping fixture for support products in metal injection molding process. Background Technology
[0002] Metal powder injection molding (MIM) is a new type of near-net-shape forming technology in powder metallurgy that combines modern plastic injection molding technology with traditional powder metallurgy processes.
[0003] The product is produced by injection molding, so the condition of the mold is closely related to the quality of the product. However, for products with complex structures and relatively thin walls, deformation is likely to occur during the sintering process.
[0004] Due to the characteristics of its process, MIM injection molded products with complex structures and thin walls are prone to deformation during high-temperature sintering. This is determined by the characteristics of the MIM process. In most cases, the product needs to be reshaped and corrected, otherwise it will affect the use of the product. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a shaping fixture for support products in metal injection molding process. Through the design of the top cover and the shovel, it has the advantage of being able to simultaneously shape the top surface of multiple products and the left and right sides of multiple products at the same time.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A shaping fixture for a support component product in a metal injection molding process includes:
[0008] Top cover and bottom fixing plate;
[0009] The shovel is provided in two symmetrically arranged and slidably mounted on the lower fixed plate.
[0010] The product fixing base has a first convex sliding groove that mates with the product fixing base at the middle position of the lower fixing plate, and a stop block is also fixedly installed at the middle position of the lower fixing plate.
[0011] A buffer assembly is disposed between the upper cover and the lower fixing plate.
[0012] Preferably, a second convex groove communicating with the first convex groove is provided at the middle position of both the left and right sides of the lower fixing plate.
[0013] Furthermore, both of the aforementioned excavators include a convex slider that mates with the second convex groove, a side pressure block fixedly installed on the convex slider near the first convex groove, and an upper pressure block slidably installed with the convex slider. The upper pressure block is fixedly installed on the upper cover by screws.
[0014] Furthermore, a through groove that mates with the upper pressure block is provided in the middle of the side of the convex slider away from the first convex groove. Inclined sliders are fixedly installed on both the front and back sides of the upper pressure block. Inclined grooves that mate with the inclined sliders are provided on both the inner wall of the front and the inner wall of the back of the convex slider. The two inclined sliders are slidably installed inside the two inclined grooves respectively.
[0015] Furthermore, the buffer assembly includes a stop screw for fixing the lower fixing plate to the upper cover and a spring sleeved on the outside of the stop screw.
[0016] Furthermore, the lower fixing plate has an internal cavity for the insertion screw to pass through and a lower spring cavity, and the upper cover has an internal upper spring cavity and a screw hole that mates with the insertion screw.
[0017] Furthermore, a gap is left between the spring and the locking screw, one end of the spring is fixedly installed inside the lower spring cavity, and the other end of the spring is located inside the upper spring cavity.
[0018] The beneficial effects of this utility model are:
[0019] This utility model involves placing a product on a product fixing seat, then pushing the product fixing seat filled with products into the first convex groove of the lower fixing plate, so that the top of the product is located below the upper cover, and the two sides of the product correspond to the positions of two forks respectively. By using a shaping press, force is applied to the upper cover to press it down, so that the upper cover and the plane of the lower fixing plate are pressed together, shaping the upper surface of the product. At the same time, during the pressing down of the upper cover, it can drive the two forks to move towards the product, shaping the left and right sides of the product. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0022] Figure 2 This is a schematic diagram of the product fixing base being inserted into the lower fixing plate.
[0023] Figure 3 This is a three-dimensional schematic diagram of the shovel of this utility model.
[0024] Figure 4 This is a top view of the present invention.
[0025] Figure 5 This is a utility model Figure 4 Schematic diagram of cross-section at point AA.
[0026] Figure 6 This is a three-dimensional schematic diagram of the product fixing base of this utility model.
[0027] Figure 7 This is a three-dimensional schematic diagram of the lower fixing plate of this utility model.
[0028] The markings in the diagram are as follows: 1. Top cover; 2. Lower fixing plate; 3. Forklift; 4. Product fixing seat; 5. Buffer assembly; 201. First convex slide groove; 202. Stop block; 203. Second convex slide groove; 301. Convex slider; 302. Side pressure block; 303. Upper pressure block; 304. Screw; 305. Tilt slider; 306. Tilt slide groove; 401. Handle; 501. Plug screw; 502. Spring; 503. Cavity; 504. Lower spring cavity; 505. Upper spring cavity; 506. Screw hole. Detailed Implementation
[0029] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0033] Example
[0034] Please see Figure 1-7 As shown, a forming fixture for a support component product in a metal injection molding process includes an upper cover 1, a lower fixed plate 2, a scraper 3, a product fixing seat 4, and a buffer assembly 5. Two scrapers 3 are provided, symmetrically arranged, and slidably mounted on the lower fixed plate 2. A first convex groove 201 that cooperates with the product fixing seat 4 is provided at the middle position of the lower fixed plate 2. A stop block 202 is also fixedly installed at the middle position of the lower fixed plate 2. The buffer assembly 5 is disposed between the upper cover 1 and the lower fixed plate 2.
[0035] The product holder 4 has multiple slots for placing products, and a handle 401 is fixedly installed on the product holder 4, which facilitates the picking and placing of products.
[0036] In this invention, the product fixing seat 4 is filled with products, and the product fixing seat 4 filled with products is pushed into the first convex groove 201 opened in the lower fixing plate 2, so that the top of the product is located below the upper cover 1, and the two sides of the product correspond to the positions of the two shovels 3 respectively. By using the shaping press, force is applied to the upper cover 1 to press it down, so that the upper cover 1 and the plane of the lower fixing plate 2 are pressed together, shaping the upper plane of the product. At the same time, during the pressing down of the upper cover 1, the two shovels 3 can be driven to move towards the product, shaping the left and right sides of the product.
[0037] The lower fixing plate 2 has a second convex groove 203 at the middle position on both the left and right sides, which is connected to the first convex groove 201.
[0038] Both excavators 3 include a convex slider 301 that mates with the second convex groove 203, a side pressure block 302 that is fixedly installed on the convex slider 301 near the first convex groove 201, and an upper pressure block 303 that is slidably installed with the convex slider 301. The upper pressure block 303 is fixedly installed on the upper cover 1 by screws 304. The convex slider 301 and the side pressure block 302 are integrally formed.
[0039] The convex slider 301 has a through groove in the middle of the side away from the first convex groove 201 that matches the upper pressure block 303. The upper pressure block 303 has inclined sliders 305 fixedly installed on both the front and back sides. The inner walls of the front and back sides of the convex slider 301 have inclined grooves 306 that match the inclined sliders 305. The two inclined sliders 305 are slidably installed in the two inclined grooves 306 respectively. The side of the upper pressure block 303 that contacts the convex slider 301 is an inclined surface.
[0040] The upper cover 1 and the upper pressure block 303 are fixedly installed by screws 304. When the press applies force, the upper cover 1 moves downward, so that the upper cover 1 and the lower fixed plate 2 are pressed together. This can simultaneously shape the upper surface of multiple products placed on the product fixing seat 4.
[0041] During the downward pressing of the top cover 1, the two upper pressing blocks 303 can move downward in the through groove opened in the convex slider 301. During the downward movement of the two upper pressing blocks 303, the inclined slider 305 can slide inside the inclined slide groove 306 opened in the convex slider 301, so that the convex slider 301 moves towards the product. During the movement of the convex slider 301 towards the product, the side pressing blocks 302 move synchronously towards the product. The two side pressing blocks 302 can shape the left and right sides of the multiple products placed on the product fixing seat 4.
[0042] That is, when the press applies force to the upper cover 1, it can simultaneously shape the upper surface of multiple products and the left and right sides of multiple products.
[0043] The buffer assembly 5 includes a screw 501 for fixing the lower fixing plate 2 to the upper cover 1 and a spring 502 sleeved on the outside of the screw 501.
[0044] The lower fixing plate 2 has a cavity 503 for the insertion screw 501 to pass through and a lower spring cavity 504 inside. The upper cover 1 has an upper spring cavity 505 and a screw hole 506 that mates with the insertion screw 501 inside.
[0045] A gap is left between the spring 502 and the stop screw 501. One end of the spring 502 is fixedly installed inside the lower spring cavity 504, and the other end of the spring 502 is located inside the upper spring cavity 505.
[0046] The screw 501 is inserted through the cavity 503 and the spring 502 is screwed into the screw hole 506 of the upper cover 1. When the upper cover 1 moves downward under the action of the press, the spring 502 will be compressed. The spring 502 can play a buffering role and protect the upper cover 1, the product and the lower fixing plate 2.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A shaping jig of a support product in a metal injection molding process, characterized by, include: Upper cover (1) and lower fixing plate (2); Two shovels (3) are provided, the two shovels (3) are symmetrically arranged, and the two shovels (3) are slidably installed on the lower fixed plate (2); The product fixing seat (4) has a first convex groove (201) that cooperates with the product fixing seat (4) at the middle position of the lower fixing plate (2), and a stop block (202) is also fixedly installed at the middle position of the lower fixing plate (2). A buffer assembly (5) is disposed between the upper cover (1) and the lower fixing plate (2).
2. The trim tool for a support product in a metal injection molding process according to claim 1, wherein, The lower fixing plate (2) has a second convex groove (203) at the middle position on both the left and right sides, which is connected to the first convex groove (201).
3. The trim tool for a support product in a metal injection molding process according to claim 2, wherein, Both of the aforementioned excavators (3) include a convex slider (301) that mates with the second convex groove (203), a side pressure block (302) that is fixedly installed on the convex slider (301) near the first convex groove (201), and an upper pressure block (303) that is slidably installed with the convex slider (301). The upper pressure block (303) is fixedly installed on the upper cover (1) by screws (304).
4. The trim tool for a support product in a metal injection molding process according to claim 3, wherein The convex slider (301) has a through groove in the middle of the side away from the first convex groove (201) that cooperates with the upper pressure block (303). The upper pressure block (303) has inclined sliders (305) fixedly installed on both the front and back sides. The inner walls of the front and back sides of the convex slider (301) have inclined grooves (306) that cooperate with the inclined sliders (305). The two inclined sliders (305) are slidably installed inside the two inclined grooves (306).
5. The trim tool for a support product in a metal injection molding process according to claim 1, wherein, The buffer assembly (5) includes a stop screw (501) for fixing the lower fixing plate (2) and the upper cover (1) and a spring (502) sleeved on the outside of the stop screw (501).
6. The trim tool for a support product in a metal injection molding process according to claim 5, wherein, The lower fixing plate (2) has a cavity (503) for the insertion screw (501) to pass through and a lower spring cavity (504) inside. The upper cover (1) has an upper spring cavity (505) and a screw hole (506) that cooperates with the insertion screw (501) inside.
7. The trim tool for a support product in a metal injection molding process according to claim 5, wherein There is a gap between the spring (502) and the screw (501). One end of the spring (502) is fixedly installed inside the lower spring cavity (504), and the other end of the spring (502) is located inside the upper spring cavity (505).