CN215430915U

CN215430915U - Shaping tool for complex MIM (metal injection molding) part

Info

Publication number: CN215430915U
Application number: CN202121603511.4U
Authority: CN
Inventors: 祁万章
Original assignee: Suzhou Saiterui Precision Machinery Parts Co ltd
Current assignee: Suzhou Saiterui Precision Machinery Parts Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-01-07
Anticipated expiration: 2031-07-14

Abstract

The application discloses shaping frock of complicated MIM part. This plastic frock of complicated MIM part includes mould and lower mould, has seted up the spout on the lower mould, is provided with the core supporting component that carries out the centre gripping to the work piece on the spout, still is fixed with groove cave sword piece on the core supporting component, is provided with the stopper that restriction groove cave sword piece and core supporting component removed on the lower mould, goes up the mould and can drive the motion of core supporting component. The application solves the technical problems of high production cost, low production efficiency and high labor intensity of workers caused by repeated processing of workpieces.

Description

Shaping tool for complex MIM (metal injection molding) part

Technical Field

The application relates to the technical field of workpiece machining, in particular to a shaping tool for a complex MIM part.

Background

Mim (metal Injection molding) parts are one type of powder metallurgy that are formed into part shapes by mixing metal powder with an organic binder, pelletizing, and Injection molding. Because subsequent sintering deformation is needed, deformation is easy to occur to complex parts, the assembly qualification rate and consistency of the MIM parts need to be improved through a shaping process, and for the complex parts, the efficiency, the shaping effect and the convenience in operation need to be considered in the shaping design.

The complicated part of MIM that column, have the hole and have the notch on the outer wall is in the sintering back, and the change in size all appears easily in notch and the hole on the outer wall, need carry out plastic and adjustment to the notch on hole and the outer wall respectively in the plastic process, needs a plurality of equipment to revise the plastic to it, and manufacturing cost is high, and staff intensity of labour is big, and production efficiency is low.

Disclosure of Invention

The main aim at of this application provides a plastic frock of complicated MIM part to solve the problem that the manufacturing cost that the work piece numerous processing caused is high, low and artifical intensity of labour is big of production efficiency.

In order to achieve the purpose, the shaping tool for the complex MIM part is provided.

The shaping tool for the complex MIM part comprises: go up mould and lower mould, the spout has been seted up on the lower mould, be provided with the core supporting component who carries out the centre gripping to the work piece on the spout, still be fixed with groove cave sword piece on the core supporting component, be provided with the stopper that restriction groove cave sword piece and core supporting component removed on the lower mould, it can drive the motion of core supporting component to go up the mould.

Furthermore, the core supporting component comprises a sliding block and a pushing block, the sliding block is arranged in the sliding groove in a sliding mode, the pushing block is arranged in the sliding groove in a sliding mode, a first core supporting block is fixed on the sliding block, a second core supporting block is fixed on the pushing block, and the groove hole cutter block is fixedly connected with the first core supporting block.

Furthermore, an inclined plane I is arranged on the sliding block, and a triangular block I corresponding to the inclined plane I is fixed on the upper die.

Furthermore, an inclined plane II is formed in the push block, and a triangular block II corresponding to the inclined plane II is fixed on the upper die.

Furthermore, a first fixing block and a second fixing block are respectively fixed at two ends of the sliding groove, and elastic parts are respectively fixed between the first fixing block and the sliding block, and between the second fixing block and the pushing block.

Furthermore, a first positioning block for clamping a part is fixed in the middle of the sliding groove, one end of the first positioning block is fixedly connected with the limiting block, and a second positioning block corresponding to the first positioning block is fixed on the upper die.

Further, the elastic member is a spring or a tension belt.

Furthermore, a demoulding ejection used for pushing the workpiece to be separated from the lower die is arranged on the lower die.

Furthermore, the demoulding ejection device comprises an air cylinder fixed on the lower end face of the lower die and a through hole formed in the lower die, and a telescopic rod of the air cylinder penetrates through the through hole and the first positioning block.

In the embodiment of the application, the core supporting block I and the core supporting block II are arranged on the lower die to avoid the change of the size of the inner hole of the workpiece in the shaping process, and meanwhile, the groove hole on the outer wall of the workpiece is trimmed and shaped through the groove hole cutter block, so that the size precision of the groove hole on the outer wall of the workpiece is ensured, the processing and shaping of multiple positions of the workpiece are realized at one time, the processing and shaping efficiency of the workpiece is improved, the labor intensity of workers is reduced, the processing and shaping efficiency of the workpiece is improved, the production of mass workpieces is met, and the problems of high production cost and low processing and shaping efficiency caused by the fact that the workpiece needs to be shaped for multiple times are solved; in addition, the core supporting block I and the core supporting block II move through the matching of the upper die and the lower die, so that the arrangement of a driving source is reduced, the utilization of energy is improved, and the waste of energy is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the utility model and do not limit it. In the drawings:

FIG. 1 is a schematic main view of an embodiment;

FIG. 2 is a schematic view showing a relationship between the upper mold and the lower mold;

FIG. 3 is a schematic diagram showing the relationship between structures on a lower mold;

fig. 4 is a schematic view showing a connection relationship between the pocket block and the first core support block.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 3, a shaping tool for a complex MIM component includes an upper die 1 and a lower die 2, a sliding groove 3 is provided on the lower die 2, a core supporting component 4 for clamping a workpiece is provided on the sliding groove 3, a slot tool block 5 is further fixed on the core supporting component 4, a limiting block 6 for limiting the movement of the slot tool block 5 and the core supporting component 4 is provided on the lower die 2, and the upper die 1 can drive the core supporting component 4 to move.

As shown in fig. 2 and 3, the object used by the tool is a cylindrical workpiece, both ends of the workpiece are provided with square inner holes, and one end of the outer wall of the workpiece is provided with a notch, during the process of processing and shaping the workpiece, the lower die 2 is fixed on a working platform of a punching machine, the upper die 1 is fixed on a punching part of the punching machine, a first positioning block 18 for clamping a part is fixed in the middle of the sliding chute 3, one end of the first positioning block 18 is fixedly connected with a limiting block 6, a second positioning block 19 corresponding to the first positioning block 18 is fixed on the upper die 1, both the first positioning block 18 and the second positioning block 19 are provided with clamping grooves adapted to the shape of the workpiece to be processed, a worker places the workpiece to be processed on the first positioning block 18, one end of the workpiece to be processed is abutted against the limiting block 6, the clamping groove of the first positioning block 18 is adapted to the lower half part of the workpiece to be processed, and the clamping groove of the second positioning block 19 is adapted to the upper half part of the workpiece to be processed, and the shape of the workpiece to be processed can be shaped through the clamping grooves on the first positioning block 18 and the second positioning block 19, so that the workpiece to be processed meets the size requirement required by production.

As shown in fig. 3 and 4, the core supporting component 4 includes a sliding block 7 slidably disposed in the sliding groove 3 and a pushing block 8 slidably disposed in the sliding groove 3, a first core supporting block 9 is fixed on the sliding block 7, a second core supporting block 10 is fixed on the pushing block 8, the pocket cutter block 5 is fixedly connected with the first core supporting block 9, the first core supporting block 9 and the second core supporting block 10 are respectively adapted to square inner holes at two ends of a workpiece to be machined, the first core supporting block 9 and the second core supporting block 10 can clamp the workpiece to be machined, and the size of the inner hole of the workpiece to be machined can be maintained through the first core supporting block 9 and the second core supporting block 10, so as to avoid the size of the inner hole of the workpiece to be machined from changing during a stamping process, the pocket cutter block 5 corresponds to a pocket on the outer wall of the workpiece to be machined, and the pocket cutter block 5 can perform size adjustment on the outer wall of the workpiece to be machined, the adjusted groove cavity is matched with the groove cavity cutter block 5, the groove cavity cutter block 5 can prevent the size of the groove cavity from changing in the stamping process, the requirement for size precision in the machining process is met, a first inclined plane 11 is formed in the sliding block 7, a first triangular block 12 corresponding to the first inclined plane 11 is fixed on the upper die 1, a second inclined plane 13 is formed in the pushing block 8, and a second triangular block 14 corresponding to the second inclined plane 13 is fixed on the upper die 1.

When the punching machine is started, a punching part of the punching machine moves downwards, the upper die 1 moves downwards until the first positioning block 18 and the second positioning block 19 are attached to each other, the shape of a workpiece to be processed can be shaped through the first positioning block 18 and the second positioning block 19, the shape size of the workpiece to be processed meets the requirements of production and processing, the first triangular block 12 drives the slider 7 to move under the cooperation with the first inclined plane 11, the second triangular block 14 drives the push block 8 to move under the cooperation with the second inclined plane 13, the slider 7 drives the first core supporting block 9 fixedly connected with the slider 7 to move, the push block 8 moves to drive the second core supporting block 10 fixed with the push block to move, the first core supporting block 9 and the second core supporting block 10 respectively enter square inner holes at two ends of the workpiece to be processed, and the workpiece to be processed is prevented from being punched through the first core supporting block 9 and the second core supporting block 10, the change of the size of the inner hole appears, the movement of the groove hole cutter block 5 can be driven in the process that the core supporting block I9 moves, the groove hole cutter block 5 can trim the groove hole on the outer wall of the workpiece to be machined, the size required by production and machining is met, the groove hole cutter block 5 is located in the groove hole of the workpiece to be machined in the stamping process, the size change of the groove hole of the workpiece to be machined is avoided in the stamping process, and the size precision in the machining and shaping process is met.

After punching is finished, a punching part of the punching machine is restored to the original state, because two ends of the sliding chute 3 are respectively fixed with a first fixed block 15 and a second fixed block 16, an elastic part 17 is fixed between the first fixed block 15 and the sliding block 7, and between the second fixed block 16 and the pushing block 8, the elastic part 17 is a spring or a tensioning belt, when a first positioning block 18 and a second positioning block 19 are attached, the elastic part 17 is in the tensioning state, after the upper die 1 and the lower die 2 are separated, the sliding block 7 and the pushing block 8 are restored to the original position under the elastic action of the elastic part 17 for next use, because the lower die 2 is provided with a demoulding ejection 20 for pushing a workpiece to be separated from the lower die 2, the demoulding ejection 20 comprises a cylinder 21 fixed on the lower end face of the lower die 2 and a through hole opened on the lower die 2, a telescopic rod of the cylinder 21 penetrates through the through hole and the first positioning block 18, the punching machine is provided with a controller which can control the operation of the punching machine and the operation of the cylinder 21, the telescopic rod of the air cylinder 21 corresponds to the position of the workpiece, air is supplied to the air cylinder 21, the telescopic rod of the air cylinder 21 extends, the telescopic rod of the air cylinder 21 can push the workpiece on the positioning block down from the first positioning block 18, the workpiece is discharged, the labor intensity of workers is further reduced, and the processing efficiency of the workpiece is improved.

As shown in fig. 2 and 3, the size of the inner hole of the workpiece can be maintained by matching the first core support block 9 and the second core support block 10, the size change of the inner hole of the workpiece in the processing and shaping process is avoided, and the probability of part processing waste products is reduced.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a plastic frock of complicated MIM part, its characterized in that, includes mould (1) and lower mould (2), spout (3) have been seted up on lower mould (2), be provided with core supporting component (4) that carry out the centre gripping to the work piece on spout (3), still be fixed with groove cave sword piece (5) on core supporting component (4), be provided with stopper (6) that restriction groove cave sword piece (5) and core supporting component (4) removed on lower mould (2), it can drive core supporting component (4) motion to go up mould (1).

2. The tool for reshaping the complex MIM component of claim 1, wherein the core support assembly (4) comprises a sliding block (7) slidably disposed in the sliding groove (3) and a pushing block (8) slidably disposed in the sliding groove (3), a first core support block (9) is fixed on the sliding block (7), a second core support block (10) is fixed on the pushing block (8), and the pocket knife block (5) is fixedly connected with the first core support block (9).

3. The tool for reshaping the complex MIM (metal injection molding) part as claimed in claim 2, wherein the slider (7) is provided with a first inclined surface (11), and the upper mold (1) is fixed with a first triangular block (12) corresponding to the first inclined surface (11).

4. The tool for reshaping the complex MIM (metal injection molding) part as claimed in claim 2, wherein the push block (8) is provided with a second inclined surface (13), and the upper die (1) is fixed with a second triangular block (14) corresponding to the second inclined surface (13).

5. The tool for reshaping the complex MIM (metal injection molding) part as claimed in claim 2, wherein a first fixing block (15) and a second fixing block (16) are respectively fixed at two ends of the sliding groove (3), and elastic members (17) are respectively fixed between the first fixing block (15) and the sliding block (7), and between the second fixing block (16) and the pushing block (8).

6. The tool for reshaping the complex MIM (metal injection molding) part as claimed in claim 1, wherein a first positioning block (18) for clamping the part is fixed in the middle of the sliding groove (3), one end of the first positioning block (18) is fixedly connected with the limiting block (6), and a second positioning block (19) corresponding to the first positioning block (18) is fixed on the upper die (1).

7. The tool according to claim 5, wherein the elastic member (17) is a spring or a tension band.

8. The tool for reshaping complex MIM components according to claim 1 wherein the lower mold (2) is provided with a stripper bullet (20) for pushing the workpiece off the lower mold (2).

9. The tool for reshaping the complex MIM (metal injection molding) part as claimed in claim 8, wherein the ejection spring top (20) comprises a cylinder (21) fixed on the lower end surface of the lower die (2) and a through hole opened on the lower die (2), and a telescopic rod of the cylinder (21) penetrates through the through hole and the first positioning block (18).