Titanium alloy workpiece stamping and stretching mechanism

Abstract

The utility model provides a titanium alloy workpiece stamping and stretching mechanism, which belongs to the technical field of die stamping and comprises a stamping process and a stretching process. And the stretching process is provided with a forming process in a matched mode, the stretching process comprises a stretching punch, the stretching punch is fixedly connected with a forming film body through a straight rod at the bottom, the outer surface of the forming film body is connected with a stretching female die in a sliding mode, and the forming process is provided with a lug plate base in a matched mode. The side face of the lug plate base is slidably connected with a bottom groove base, elastic stretching of a spring rod directly acts on an outer fixing ring base through insertion connection of a circular ring and the spring rod, the stability of the stretching process is further ensured, radial stress generated when titanium alloy is vertically punched is counteracted by elastic force, and axial stress is supported and counteracted by a bottom module; meanwhile, the spring rod serves as an energy storage element and can supplement or limit sliding of the lug plate base and the bottom groove base, and the relative stability of the stretching process is further guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of die stamping, and particularly relates to a stamping and stretching mechanism for titanium alloy workpieces. Background Technique

[0002] Due to its high strength, low density and good corrosion resistance, titanium alloy is commonly used in the fields of aerospace, medical devices, automobile manufacturing, etc. Stamping and stretching is a metal forming process used to manufacture metal parts with specific shapes and sizes.

[0003] In the above, since the titanium alloy will deform during stamping, stress will be generated between parts, resulting in fracture and cavities on the stretching surface of the titanium alloy. Moreover, after continuous stamping of the titanium alloy, the side will adhere to the die seat, and over time, material tension will be generated, affecting the quality of linear stamping. Therefore, it is necessary to eliminate the stress of the titanium alloy material during stretching. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stamping and stretching mechanism for titanium alloy workpieces, aiming to solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A stamping and stretching mechanism for titanium alloy workpieces includes a blanking process and a stretching process;

[0007] And, a forming process is arranged in cooperation with the stretching process. The stretching process includes a stretching punch. The stretching punch is fixedly connected with a forming film body through a straight rod at the bottom. The outer surface of the forming film body is slidably connected with a stretching die. The bottom of the stretching die is fixedly connected with a fixed rod. And a correction mechanism is arranged in cooperation with the forming process. The correction mechanism includes an ear plate base adaptively installed at the bottom of the stretching process. The side surface of the ear plate base is slidably connected with a bottom groove seat.

[0008] As a preferred scheme of the utility model, a driving motor is fixedly connected to the bottom of the bottom groove seat. The output end of the driving motor is inserted with a straight shaft. The top of the straight shaft is fixedly sleeved with an upper support rod. The bottom of the upper support rod is adaptively arranged with the stretching process.

[0009] As a preferred scheme of the utility model, a straightening mechanism is arranged in cooperation with the side surface of the straight shaft. The straightening mechanism includes a ring fixedly connected to the outer surface of the straight shaft. A spring rod is inserted into the side surface of the ring. One end of the spring rod is clamped with an outer fixed ring seat. The inner side surface of the outer fixed ring seat is adaptively arranged with the stretching process.

[0010] As a preferred solution of the present utility model, the stretching process further includes a front fixed mold. A stretching female mold is slidably connected to the side of the front fixed mold. A ejector rod is inserted into the center of the stretching female mold, and a positioning straight column is inserted into the upper surface of the front fixed mold. The top of the positioning straight column is movably inserted into the stretching punch.

[0011] As a preferred solution of the present utility model, the punching process includes a material extrusion head. A film-making part is arranged in cooperation with the material extrusion head. The film-making part includes a bearing ring fixedly sleeved at the bottom of the material extrusion head. A material sheet layer is clamped at the top of the bearing ring. A bottom layer seat is arranged in cooperation with the lower surface of the material sheet layer. A base platform is movably inserted into the outer surface of the bottom layer seat. The center of the base platform is aligned with the material extrusion head. A material receiving groove is clamped at the bottom of the bottom layer seat. A base material pressing head is fixedly connected to the side of the material receiving groove.

[0012] As a preferred solution of the present utility model, the corners of the bottom groove seat are arranged in cooperation with the forming process. The bottom groove seat is a symmetric cross plate formed integrally.

[0013] As a preferred solution of the present utility model, the punching process, the stretching process and the forming process are a complete process system carried out in sequence. The stretching process is a recyclable process.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) Through the insertion setting of the circular ring and the spring rod, the elastic stretching of the spring rod directly acts on the outer fixed ring seat, further ensuring the stability of the stretching process. The radial stress generated by the titanium alloy during vertical stamping is offset by the elastic force, and the axial stress is offset by the support of the bottom module. At the same time, the spring rod, as an energy storage element, can provide supplement or limit for the sliding of the ear plate base and the bottom groove seat, further ensuring the relative stability of the stretching process. The corner value of the titanium alloy changing from an ellipse to a square is consistent with the standard value.

[0015] (2) Through the sliding connection between the front fixed mold and the stretching female mold, the titanium alloy material can be directly extruded into the inner cavity of the stretching female mold. The setting of the positioning straight column allows the stretching punch to stably punch. The front fixed mold and the stretching female mold are always vertically aligned, reducing the stress of the titanium alloy material in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0017] Figure 1Schematic diagram of the process for achieving the stretching process effect of the present utility model;

[0018] Figure 2 Schematic diagram of the structure of related parts for achieving the stamping forming effect of the material layer in the present utility model;

[0019] Figure 3 Schematic diagram of the structure of related parts for achieving the standard value of the R corner of the square product in the present utility model;

[0020] Figure 4 Schematic diagram of the structure of related parts for achieving the arc motion effect in the present utility model;

[0021] Figure 5 Schematic diagram of the structure of related parts for achieving the stable vertical stamping effect in the present utility model.

[0022] In the figure: 100, blanking process; 101, blanking head; 102, film forming part; 102a, base; 102b, bearing ring; 102c, material sheet layer; 102d, bottom seat; 103, material storage groove; 104, base material blanking head; 200, stretching process; 201, stretching punch; 202, front fixed die; 203, stretching die; 204, ejector rod; 300, forming process; 301, forming die body; 302, fixing rod; 400, correction mechanism; 401, bottom groove seat; 402, ear plate base; 403, drive motor; 404, straight shaft; 405, upper support rod; 500, straightening mechanism; 501, ring; 502, spring rod; 503, outer fixed ring seat; 504, alignment straight column. Specific embodiments

[0023] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0026] Embodiment 1

[0027] Refer toFigure 1-2 , which is the first embodiment of the present utility model. This embodiment provides a stamping and stretching mechanism for titanium alloy workpieces, including a blanking process 100 and a stretching process 200;

[0028] In addition, a forming process 300 is arranged in cooperation with the stretching process 200. The stretching process 200 includes a stretching punch 201. The stretching punch 201 is fixedly connected with a forming film body 301 through a straight rod at the bottom. The outer surface of the forming film body 301 is slidably connected with a stretching female die 203. The bottom of the stretching female die 203 is fixedly connected with a fixing rod 302. And a correction mechanism 400 is arranged in cooperation with the forming process 300. The correction mechanism 400 includes an ear plate base 402 adaptively installed at the bottom of the stretching process 200. The side surface of the ear plate base 402 is slidably connected with a bottom groove seat 401.

[0029] Specifically, the coordinated arrangement of the blanking process 100, the stretching process 200 and the forming process 300 enables the complete stamping and stretching of titanium alloy. The fixed connection between the stretching punch 201 and the forming film body 301 allows the forming film body 301 to be evenly stretched, and the film body will not break or tear, resulting in higher stretching quality of titanium alloy. The sliding fit between the stretching female die 203, the fixing rod 302 and the forming film body 301 can be used for the stable stretching of titanium alloy at a predetermined position, avoiding the splashing and shaking of titanium alloy when it falls. The sliding connection between the ear plate base 402 and the bottom groove seat 401 enables the stretching process 200 to slide stably along the outer side surface of the bottom groove seat 401. At the same time, the bottom groove seat 401 of the symmetric mechanism allows the process of stretching titanium alloy from an ellipse to a square to proceed stably.

[0030] Furthermore, a driving motor 403 is fixedly connected to the bottom of the bottom groove seat 401. The output end of the driving motor 403 is inserted with a straight shaft 404. A top support rod 405 is fixedly sleeved on the top of the straight shaft 404. The bottom of the top support rod 405 is adaptively arranged with the stretching process 200.

[0031] Preferably, the coordinated arrangement of the driving motor 403, the straight shaft 404 and the top support rod 405 enables the stretching process 200 to have a better stable support effect during sliding, avoiding the waste of titanium alloy resources.

[0032] It should be noted that a straightening mechanism 500 is arranged in cooperation with the side surface of the straight shaft 404. The straightening mechanism 500 includes a ring 501 fixedly connected to the outer surface of the straight shaft 404. A spring rod 502 is inserted into the side surface of the ring 501. One end of the spring rod 502 is clamped with an outer fixed ring seat 503. The inner side surface of the outer fixed ring seat 503 is adaptively arranged with the stretching process 200.

[0033] Afterwards, the insertion setting of the circular ring 501 and the spring rod 502 enables the elastic stretching of the spring rod 502 to directly act on the outer fixed ring seat 503, further ensuring the stability of the stretching process 200. The radial stress generated during the vertical stamping of the titanium alloy is offset by the elastic force, and the axial stress is offset by the support of the bottom module. At the same time, the spring rod 502, as an energy storage element, can provide supplementation or limit for the sliding of the ear plate base 402 and the bottom groove seat 401, further ensuring the relative stability of the stretching process 200. The R corner value of the titanium alloy ellipse changing to a square is consistent with the standard value.

[0034] Embodiment 2

[0035] Referring to Figure 2-3 , this is the second embodiment of the present utility model. Different from the previous embodiment, this embodiment provides relevant parts for realizing the titanium alloy thunder god and the punching preparation effect.

[0036] Specifically, the stretching process 200 further includes a front fixed die 202. A stretching concave die 203 is slidably connected to the side of the front fixed die 202. A ejector rod 204 is inserted into the center of the stretching concave die 203, and a positioning straight column 504 is inserted into the upper surface of the front fixed die 202. The top of the positioning straight column 504 is movably inserted into the stretching punch 201.

[0037] Furthermore, the sliding connection between the front fixed die 202 and the stretching concave die 203 enables the titanium alloy material to be directly extruded into the inner cavity of the stretching concave die 203. The setting of the positioning straight column 504 allows the stretching punch 201 to stably punch, and the front fixed die 202 and the stretching concave die 203 are always vertically aligned.

[0038] Preferably, the punching process 100 includes a material extrusion head 101. The material extrusion head 101 is provided with a film forming part 102 in cooperation. The film forming part 102 includes a bearing ring 102b fixedly sleeved at the bottom of the material extrusion head 101. A material sheet layer 102c is clamped at the top of the bearing ring 102b. A bottom layer seat 102d is provided on the lower surface of the material sheet layer 102c in cooperation. A base 102a is movably inserted into the outer surface of the bottom layer seat 102d. The center of the base 102a is aligned with the material extrusion head 101. A material receiving groove 103 is clamped at the bottom of the bottom layer seat 102d. A base material pressing head 104 is fixedly connected to the side of the material receiving groove 103.

[0039] Among them, the cooperation setting of the material extrusion head 101 with the material sheet layer 102c and the bearing ring 102b enables the titanium alloy material to be completed in the extrusion preparation, facilitating the subsequent continuous stamping process. The insertion of the bottom layer seat 102d and the base 102a can be used for the short-term retention of the titanium alloy material after preparation.

[0040] Embodiment 3

[0041] Referring to Figure 2-5, which is the third embodiment of the present utility model. Different from the previous embodiment, this embodiment provides a description related to realizing a complete stamping process.

[0042] Specifically, the corners of the bottom groove seat 401 are arranged in cooperation with the forming process 300, and the bottom groove seat 401 is a symmetric cross plate formed integrally.

[0043] Furthermore, the cooperation between the corners of the bottom groove seat 401 and the forming process 300 enables the titanium alloy material to be stretched and formed stably and evenly. At the same time, the symmetric setting of the bottom groove seat 401 also allows more titanium alloy materials to complete stamping.

[0044] Preferably, the blanking process 100, the stretching process 200 and the forming process 300 are a complete process system carried out in sequence, and the stretching process 200 is a recyclable process.

[0045] Among them, the coordinated cooperation of the blanking process 100, the stretching process 200 and the forming process 300 makes the titanium alloy process complete and continuous, meeting the high-efficiency requirements of titanium alloy stretching.

[0046] Working principle: First, place the titanium alloy material on the surface of the blank layer 102c, then clamp the blank layer 102c inside the bottom layer seat 102d, and then start the extrusion head 101 to stamp and prepare the titanium alloy; then enter the stretching process 200, start the stretching punch 201, and the front fixed die 202 pushes the titanium alloy material to continuously stamp inside the cavity of the stretching die 203. The ejector rod 204 firmly supports the stretching die 203. After that, slide the entire stretching process 200 through the ear plate base 402 and the bottom groove seat 401 in cooperation. In order to eliminate the stress generated during the stamping of the titanium alloy material, one end of the spring rod 502 can be connected to the stretching process 200, and the other end is fixed to the straight shaft 404. At the same time, turn on the drive motor 403. Under the action of centrifugal force, the spring rod 502 pushes the stretching process 200, and the radial force of the titanium alloy material is offset; the ear plate base 402 and the bottom groove seat 401 will continuously slide under the action of the drive motor 403, and the force during the titanium alloy stamping process is completely removed, meeting the requirement of changing the titanium alloy from an oval shape to a square shape, and the R value can reach the established standard.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any clause of "means-plus-function" is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0048] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model, or those features that are not relevant to the implementation of the present utility model).

[0049] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A titanium alloy workpiece stamping and stretching mechanism, characterized in that: It includes a punching process (100) and a stretching process (200); Furthermore, the stretching process (200) is provided in conjunction with a forming process (300), the stretching process (200) comprises a stretching punch (201), the stretching punch (201) is fixedly connected to a forming film body (301) via a straight-out rod at the bottom, the outer surface of the forming film body (301) is slidably connected to a stretching die (203), the bottom of the stretching die (203) is fixedly connected to a fixing rod (302), and the forming process (300) is provided in conjunction with a correction mechanism (400), the correction mechanism (400) comprises an ear plate base (402) adapted to be installed at the bottom of the stretching process (200), the side of the ear plate base (402) is slidably connected to a bottom groove seat (401).

2. A titanium alloy workpiece stamping and stretching mechanism according to claim 1, characterized in that: The bottom of the bottom groove seat (401) is fixedly connected to a driving motor (403), the output end of the driving motor (403) is plugged with a straight shaft (404), the top of the straight shaft (404) is fixedly sleeved with an upper support rod (405), and the bottom of the upper support rod (405) is adapted to the stretching process (200).

3. A titanium alloy workpiece stamping and stretching mechanism according to claim 2, characterized in that: The side surface of the straight shaft (404) is provided with a straightening mechanism (500), and the straightening mechanism (500) comprises a circular ring (501) fixedly connected to the outer surface of the straight shaft (404), a spring rod (502) is inserted into the side surface of the circular ring (501), and an outer fixed ring seat (503) is clamped at one end of the spring rod (502), and the inner side surface of the outer fixed ring seat (503) is adapted to be arranged in a stretching process (200).

4. The titanium alloy workpiece stamping and stretching mechanism according to claim 1, characterized in that: The stretching process (200) further comprises a front end fixed die (202), the side of the front end fixed die (202) being slidably connected to a stretching die (203), the center of the stretching die (203) being plugged with a push rod (204), and the upper surface of the front end fixed die (202) being plugged with a positioning column (504), the top of the positioning column (504) being movably plugged with the stretching punch (201).

5. The titanium alloy workpiece stamping and stretching mechanism according to claim 1, characterized in that: The punching process (100) includes an extrusion head (101), and the extrusion head (101) is provided with a film-making component (102). The film-making component (102) includes a supporting ring (102b) fixedly sleeved on the bottom of the extrusion head (101), the top of the supporting ring (102b) is clamped with a sheet layer (102c), the lower surface of the sheet layer (102c) is provided with a bottom seat (102d), the outer surface of the bottom seat (102d) is movably connected with a base (102a), the center of the base (102a) is aligned with the extrusion head (101), the bottom of the bottom seat (102d) is clamped with a material storage groove (103), and the side of the material storage groove (103) is fixedly connected with a base material stopper (104).

6. The titanium alloy workpiece stamping and stretching mechanism according to claim 2, characterized in that: The corners of the bottom groove seat (401) are arranged in cooperation with the forming process (300), and the bottom groove seat (401) is an integrally formed symmetrical cross plate.

7. The titanium alloy workpiece stamping and stretching mechanism according to claim 1, characterized in that: The punching process (100), the stretching process (200) and the forming process (300) are a complete process system carried out in sequence, and the stretching process (200) is a cyclic process.

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