A shaping tool for MIM parts
By designing a MIM part shaping fixture that includes a worktable and mounting components, the problem of existing equipment being unable to quickly change templates was solved, enabling rapid disassembly and installation of molds, thereby improving production efficiency and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU YONGLIXING IND CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-07-14
AI Technical Summary
Existing MIM part shaping fixtures cannot quickly change the upper and lower templates according to different parts during the processing, making the operation cumbersome.
A forming fixture was designed, comprising a worktable, mounting components, an upper mold, a lower mold, a cylinder, a limit rod, and fixing bolts. The cylinder drives the limit rod to insert into the lower mold to limit the position, and the fixing bolts fix the upper mold, thereby enabling the rapid disassembly and installation of the upper and lower molds.
It enables quick replacement of the upper and lower molds, simplifies the operation process, and improves production efficiency and equipment adaptability.
Smart Images

Figure CN224487232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parts shaping, and in particular to a shaping fixture for MIM parts. Background Technology
[0002] MIM (Metal Injection Molding) parts are a type of powder metallurgy, which involves mixing metal powder with an organic binder, granulating the mixture, and then injection molding it into the desired part shape. Because subsequent sintering deformation is required, complex parts are prone to deformation. Therefore, a shaping process is needed to improve the assembly pass rate and consistency of MIM parts.
[0003] A forming fixture for MIM parts (CN215430918U) is available, comprising a press body and an upper and lower die plate mounted on the press body. It also includes a lower die fixed to the lower die plate, multiple mounting blocks symmetrically fixed to both sides of the lower die, and a concave block at one end of the lower die. A first slider is symmetrically and slidably mounted at one end of the lower die, a second slider is symmetrically and slidably mounted at the other end, and a third slider is symmetrically and slidably mounted in the middle of the lower die. A side cutting block is fixed to one side of the third slider. A fixing block is provided on the upper die plate to drive the first, second, and third sliders to move. This application avoids the waste of manpower caused by multiple forming operations, improves forming efficiency, reduces the labor intensity of employees, and increases production efficiency. Simultaneously, this device achieves uniform and effective forming, meeting the requirements of mass production and batch forming.
[0004] However, the above-mentioned utility model cannot quickly change the upper and lower templates according to different parts during the processing, making the operation cumbersome. Utility Model Content
[0005] The purpose of this utility model is to provide a shaping fixture for MIM parts, which aims to solve the problem that existing devices cannot quickly change the upper and lower templates according to different parts during the processing, resulting in cumbersome operation.
[0006] To achieve the above objectives, this utility model provides a shaping fixture for MIM parts, including a worktable and a mounting assembly. The mounting assembly includes a mounting bracket, a stamping machine, an upper die, a lower die, a mounting plate, a slide, fixing bolts, a cylinder, and a limit rod.
[0007] The mounting bracket is fixedly connected to the workbench and located on top of the workbench. The stamping machine is fixedly connected to the mounting bracket and located on top of the mounting bracket. The mounting plate is fixedly connected to the output end of the stamping machine and located on one side of the stamping machine. The slide is fixedly connected to the mounting plate and located on one side of the mounting plate. The upper mold is slidably connected to the slide and located inside the slide. The fixing bolt is threadedly connected to the slide and to the upper mold, and located on one side of the slide. The lower mold is placed on the workbench. The cylinder is fixedly connected to the workbench and located on one side of the workbench. The limiting rod is fixedly connected to the output end of the cylinder and slidably connected to the lower mold, and located on one side of the cylinder.
[0008] The mounting assembly further includes a positioning post and a positioning groove. The positioning groove is fixedly connected to the lower mold and located on one side of the lower mold. The positioning post is fixedly connected to the upper mold and located at the bottom of the upper mold. The positioning post and the positioning groove are in clearance fit.
[0009] The mounting assembly further includes a spring and a push rod. The spring is connected to the lower mold and located inside the lower mold. The push rod is connected to the spring and slidably connected to the lower mold, and is located on top of the spring.
[0010] The mounting assembly further includes a support frame and a fixing plate. The support frame is fixedly connected to the workbench and located at the bottom of the support frame. The fixing plate is fixedly connected to the support frame and located on one side of the support frame.
[0011] The installation assembly further includes a storage box and a partition. The storage box is slidably connected to the support frame and is located on one side of the support frame. The partition is fixedly connected to the storage box and is located inside the storage box.
[0012] This utility model discloses a forming fixture for MIM parts. Using a device, the lower mold is placed on a worktable. A cylinder drives a limiting rod to insert into the lower mold, thus restricting its position on the worktable. The upper mold slides into the inner side of a groove and is then fixed in position using fixing bolts. After installation, a stamping machine controls the upper mold to stamp and shape the part to be formed within the lower mold. The proposed device structure enables rapid disassembly and installation of the upper and lower molds, facilitating replacement and solving the problem of existing devices being unable to quickly change the upper and lower templates for different parts during processing, resulting in cumbersome operation. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a structural diagram of a shaping fixture for MIM parts according to this utility model.
[0015] Figure 2 This is a cross-sectional schematic diagram of a shaping fixture for MIM parts according to this utility model.
[0016] Figure 3 This is a side view of a shaping fixture for MIM parts according to the present invention.
[0017] 101-Workbench, 102-Installation Components, 103-Installation Frame, 104-Punching Machine, 105-Upper Die, 106-Lower Die, 107-Installation Plate, 108-Slide Groove, 109-Fixing Bolt, 110-Cylinder, 111-Limit Rod, 112-Positioning Column, 113-Positioning Groove, 114-Spring, 115-Push Rod, 116-Support Frame, 117-Fixing Plate, 118-Storage Box, 119-Partition. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0019] First Embodiment
[0020] Please see Figures 1-3 , Figure 1 This is a structural diagram of a shaping fixture for MIM parts according to this utility model. Figure 2 This is a cross-sectional schematic diagram of a shaping fixture for MIM parts according to this utility model. Figure 3 This is a side view of a shaping fixture for MIM parts according to the present invention.
[0021] This utility model provides a shaping fixture for MIM parts, including a worktable 101 and an installation assembly 102. The installation assembly 102 includes an installation frame 103, a stamping machine 104, an upper mold 105, a lower mold 106, an installation plate 107, a slide 108, a fixing bolt 109, a cylinder 110, a limit rod 111, a positioning column 112, a positioning groove 113, a spring 114, a push rod 115, a support frame 116, a fixing plate 117, a storage box 118, and a partition 119. The aforementioned solution solves the problem that existing devices cannot quickly change the upper and lower molds according to different parts during processing, resulting in cumbersome operation.
[0022] In this embodiment, the mounting bracket 103 is fixedly connected to the workbench 101 and located on top of the workbench 101; the stamping machine 104 is fixedly connected to the mounting bracket 103 and located on top of the mounting bracket 103; the mounting plate 107 is fixedly connected to the output end of the stamping machine 104 and located on one side of the stamping machine 104; the slide groove 108 is fixedly connected to the mounting plate 107 and located on one side of the mounting plate 107; the upper mold 105 is slidably connected to the slide groove 108 and located inside the slide groove 108; the fixing bolt 109 is threadedly connected to the slide groove 108 and to the upper mold 105, and located on one side of the slide groove 108; the lower mold 106 is placed on the workbench 101. The cylinder 110 is fixedly connected to the worktable 101 and located on one side of the worktable 101. The limiting rod 111 is fixedly connected to the output end of the cylinder 110 and slidably connected to the lower mold 106, and located on one side of the cylinder 110. When using the device, the lower mold 106 is placed on the worktable 101, and the cylinder 110 drives the limiting rod 111 to insert into the lower mold 106, thereby limiting the position of the lower mold 106 on the worktable 101. The upper mold 105 is slidably inserted into the inner side of the slide groove 108, and then the position is fixed by the fixing bolt 109. After installation, the upper mold 105 is controlled by the stamping machine 104 to stamp and shape the part to be shaped in the lower mold 106. The proposed device structure enables the rapid disassembly and installation of the upper mold 105 and the lower mold 106, facilitating replacement and solving the problem of existing devices being unable to quickly replace the upper and lower mold plates according to different parts during processing, resulting in cumbersome operation.
[0023] The mounting assembly 102 further includes a positioning post 112 and a positioning groove 113. The positioning groove 113 is fixedly connected to the lower mold 106 and located on one side of the lower mold 106. The positioning post 112 is fixedly connected to the upper mold 105 and located at the bottom of the upper mold 105. The positioning post 112 and the positioning groove 113 are clearance-fitted. When the upper mold 105 stamps and shapes the parts inside the lower mold 106, the positioning post 112 slides in the positioning groove 113, thereby improving the stability of the device during stamping.
[0024] Secondly, the mounting assembly 102 also includes a spring 114 and a push rod 115. The spring 114 is connected to the lower mold 106 and is located inside the lower mold 106. The push rod 115 is connected to the spring 114 and is slidably connected to the lower mold 106, and is located on top of the spring 114. The push rod 115 is pressed down during the part forming process. After the stamping and forming is completed, the upper mold 105 leaves the lower mold 106, and the push rod 115 is reset by the spring 114, thereby ejecting the part in the lower mold 106 to achieve rapid demolding.
[0025] Furthermore, the mounting assembly 102 also includes a support frame 116 and a fixing plate 117. The support frame 116 is fixedly connected to the workbench 101 and is located at the bottom of the support frame 116. The fixing plate 117 is fixedly connected to the support frame 116 and is located on one side of the support frame 116. The support frame 116 is used to support the device, and the fixing plate 117 is provided on the support frame 116. The fixing plate 117 has mounting holes, and bolts are passed through the mounting holes on the fixing plate 117 to connect with the placement surface, thereby fixing the position of the device and improving the stability of the device.
[0026] Finally, the installation assembly 102 also includes a storage box 118 and a partition 119. The storage box 118 is slidably connected to the support frame 116 and is located on one side of the support frame 116. The partition 119 is fixedly connected to the storage box 118 and is located inside the storage box 118. The storage box 118 is used to store the upper mold 105 and the lower mold 106. The partition 119 divides the storage box 118 into two spaces, making it easy to store the upper mold 105 and the lower mold 106 separately.
[0027] When using the forming fixture for MIM parts according to this utility model, the lower mold 106 is placed on the worktable 101. The cylinder 110 drives the limiting rod 111 to insert into the lower mold 106, thereby restricting the position of the lower mold 106 on the worktable 101. The upper mold 105 slides into the inner side of the slide groove 108 and is then fixed in position by the fixing bolt 109. After installation, the stamping press 104 controls the upper mold 105 to stamp and shape the part to be formed in the lower mold 106. The device structure of the application realizes the quick disassembly and installation of the upper mold 105 and the lower mold 106, which is convenient for replacement. It solves the problem that existing devices cannot quickly change the upper and lower templates according to different parts during processing, resulting in cumbersome operation.
[0028] The above-disclosed embodiments are merely preferred embodiments of the forming fixture for MIM parts of this utility model, and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this utility model still fall within the scope of this utility model.
Claims
1. A shaping fixture for MIM parts, comprising a worktable, characterized in that: It also includes an installation assembly, which includes a mounting bracket, a stamping machine, an upper die, a lower die, a mounting plate, a slide, fixing bolts, a cylinder, and a limit rod; The mounting bracket is fixedly connected to the workbench and located on top of the workbench. The stamping machine is fixedly connected to the mounting bracket and located on top of the mounting bracket. The mounting plate is fixedly connected to the output end of the stamping machine and located on one side of the stamping machine. The slide is fixedly connected to the mounting plate and located on one side of the mounting plate. The upper mold is slidably connected to the slide and located inside the slide. The fixing bolt is threadedly connected to the slide and to the upper mold, and located on one side of the slide. The lower mold is placed on the workbench. The cylinder is fixedly connected to the workbench and located on one side of the workbench. The limiting rod is fixedly connected to the output end of the cylinder and slidably connected to the lower mold, and located on one side of the cylinder.
2. The forming fixture for a MIM part as described in claim 1, characterized in that: The mounting assembly further includes a positioning post and a positioning groove. The positioning groove is fixedly connected to the lower mold and located on one side of the lower mold. The positioning post is fixedly connected to the upper mold and located at the bottom of the upper mold. The positioning post and the positioning groove are in clearance fit.
3. The forming fixture for a MIM part as described in claim 2, characterized in that: The mounting assembly also includes a spring and a push rod. The spring is connected to the lower mold and located inside the lower mold. The push rod is connected to the spring and slidably connected to the lower mold, and is located on top of the spring.
4. The forming fixture for a MIM part as described in claim 3, characterized in that: The mounting assembly also includes a support frame and a fixing plate. The support frame is fixedly connected to the workbench and located at the bottom of the support frame. The fixing plate is fixedly connected to the support frame and located on one side of the support frame.
5. The forming fixture for a MIM part as described in claim 4, characterized in that: The installation assembly also includes a storage box and a partition. The storage box is slidably connected to the support frame and is located on one side of the support frame. The partition is fixedly connected to the storage box and is located inside the storage box.