Multi-term isothermal stamping die

Abstract

The invention relates to a multi-term isothermal stamping die, and belongs to the technical field of stamping dies. The multi-term isothermal stamping die comprises a stamping lower die, an upper main die holder and side die holders, the stamping lower die is provided with a lower die holder for placing forgings, the side die holders comprise a left side die holder and a right side die holder, the left side die holder comprises a left moving sliding block and a left die body arranged on the left moving sliding block, and the right side die holder comprises a right moving sliding block and a right die body arranged on the right moving sliding block. The right side die holder comprises a right movable sliding block and a right die body arranged on the right movable sliding block; the left die body and the right die body are each provided with a first heating piece used for heating, the lower die base is provided with a second heating piece, the left die body and the right die body abut against each other to form a product forming cavity, and the left side die base, the right side die base and the stamping lower die are each provided with a heat insulation structure used for reducing heat loss. The stamping die has the effects of heating the product forming cavity, ensuring the temperature stability of a stamping area and improving the forming effect.

Description

Technical Field

[0001] This application relates to the technical field of molds, and in particular, to a multi-item isothermal stamping mold. Background Art

[0002] A stamping mold is a key tool in industrial production for applying pressure to metal or non-metal sheets to achieve separation or forming. It is widely used in various manufacturing industries and has the characteristics of high efficiency, precision, and material saving.

[0003] In order to improve the forming efficiency of materials and reduce the probability of material fracture, some stamping molds perform certain heating operations on the materials to be stamped. A common heating method is to slidably install side mold bases on opposite sides of the lower mold base, and heating elements are arranged inside the side mold bases. The side mold bases surround the material, and the heating elements heat the material, and the heat is transferred to the material through the side mold bases.

[0004] However, in the above heating method, since the side mold bases are directly in contact with the outside, it is easy to cause serious heat loss, resulting in relatively frequent temperature changes in the stamping area and affecting the forming effect. Summary of the Invention

[0005] In order to ensure the temperature stability of the stamping area and improve the forming effect, this application provides a multi-item isothermal stamping mold.

[0006] The multi-item isothermal stamping mold provided by this application adopts the following technical solutions: A multi-item isothermal stamping mold includes a stamping lower mold, an upper main mold base, and side mold bases. The stamping lower mold is provided with a lower mold base for placing forgings. The side mold bases include a left side mold base and a right side mold base. The left side mold base includes a left moving slider and a left mold body arranged on the left moving slider. The right side mold base includes a right moving slider and a right mold body arranged on the right moving slider. First heating elements for heating are installed on both the left mold body and the right mold body. The lower mold base is provided with a second heating element. The left mold body and the right mold body are abutted to form a product forming cavity. The left side mold base, the right side mold base, and the stamping lower mold are all provided with heat insulation and heat preservation structures for reducing heat loss.

[0007] By adopting the above technical solution, when using the above stamping die, the product is placed on the lower die base, the side die base is driven, so that the left die base and the right die base approach the lower die base, the left die body and the right die body abut against each other, a product forming cavity with an open top is formed, and the product is positioned. Then, the upper main die base is started, and the die head of the upper main die base is inserted into the product forming cavity to stamp and form the forging. During the stamping process, the left die body and the right die body are heated by the first heating element, and the lower die base is heated by the second heating element, so that the temperature of the side and bottom surfaces of the product forming cavity increases, improving the forming effect during stamping. With the setting of the heat insulation and heat preservation structure, the heat transferred from the side die base to the moving slider is reduced, achieving the effect of energy saving and heat preservation, and making the temperature change of the product forming cavity relatively stable.

[0008] Optionally, the heat insulation and heat preservation structure includes heat insulation plates fitted and installed on the left die body / right die body / lower die base. The heat insulation plates are provided with a plurality of positioning holes, and the left die body / right die body / lower die base is provided with positioning protrusions that are inserted and matched with the positioning holes.

[0009] By adopting the above technical solution, the composition of the heat insulation and heat preservation structure is disclosed. The heat insulation plates are fitted and fixed on the surfaces of the left die body / right die body / lower die base through the cooperation of the positioning holes and the positioning protrusions. The installation structure is simple and convenient for assembly. The heat insulation plates can reduce the heat transfer of the left die body / right die body / lower die base.

[0010] Optionally, the left moving slider is provided with a left installation groove for installing the left die body, the right moving slider is provided with a right installation groove for installing the right die body, and the positioning protrusion abuts against the left installation groove / right installation groove / bottom of the stamping lower die.

[0011] By adopting the above technical solution, the left die body and the right die body are respectively installed in the installation grooves, and the heat insulation plates and the positioning protrusions are attached to the inner walls of the left installation groove / right installation groove, making the installation of the left die body, the right die body and the moving slider relatively stable. Most areas of the left die body / right die body and the moving slider are indirectly abutted through the heat insulation plates, and a small part of the area is directly abutted against the moving slider through the positioning protrusions, resulting in a small heat conduction area and less heat dissipation.

[0012] Optionally, the left die body / right die body is respectively provided with a first heating groove for inserting the first heating element, the lower die base is provided with a second heating groove for inserting the second heating element, and the first heating element and the second heating element each include a heating section for generating heat and a connecting section for connecting to the power supply. The length of the heating section is less than that of the first heating groove / second heating groove.

[0013] By adopting the above technical solution, the first heating element is inserted into the left mold body and the right mold body through the first heating grooves respectively. The structures inside the first heating element and the second heating element are the same, both including a heating section and a communicating section. That is, the first heating element and the second heating element only generate heat inside the left mold body / right mold body / lower mold base, so that the heat source is not directly transmitted to the moving slider.

[0014] Optionally, the top plates of the left moving slider and the right moving slider are both provided with a first inclined surface on the side away from each other. The bottom of the upper main mold base has a sleeve groove for sleeving the side mold base, and the sleeve groove has a second inclined surface that abuts and cooperates with the first inclined surface.

[0015] By adopting the above technical solution, when the left side mold base and the right side mold base are butted, the upper main mold base is started, and the stamping lower mold descends vertically towards the lower mold base, so that the sleeve groove and the side mold base are integrally sleeved and fitted, and the first inclined surface and the second inclined surface abut, realizing the locking of the upper main mold base to the side mold base, reducing the probability of the side mold base shaking left and right during stamping, and improving the forming effect of the forging.

[0016] Optionally, a stamping part is slidably arranged in the upper main mold base, and a stamping die head inserted into the product forming cavity is detachably arranged on the stamping part.

[0017] By adopting the above technical solution, when the sleeve groove and the side mold base are sleeved, the stamping part of the upper main mold base is started, and the stamping die head is inserted into the product forming cavity to realize the stamping forming of the forging. At this time, the side mold base is in a locked state under the action of the first inclined surface and the second inclined surface, and the overall stamping process is relatively stable. The setting of the stamping die head enables the upper main mold base to install a suitable stamping die head according to different products.

[0018] Optionally, the lower mold base is provided with a guiding chute for guiding the sliding of the left moving slider / right moving slider, and the guiding chute abuts against the inclined surface of the left moving slider / right moving slider.

[0019] By adopting the above technical solution, the setting of the guiding chute can play a guiding and limiting role in the sliding of the left moving slider and the right moving slider. The method of abutting with an inclined surface has a lower probability of generating gaps and ensures the stability of sliding.

[0020] Optionally, a limiting sliding seat is arranged on the lower mold base on the side close to the left side mold base. The left mold body is provided with a limiting chute cooperating with the limiting sliding seat. The left mold body is provided with a limiting insertion post on the end face facing the right mold body, and the right mold body is provided with a limiting slot for the limiting insertion post to insert.

[0021] By adopting the above technical solution, the cooperation between the limit sliding seat and the limit sliding groove can lock the left mold base on the lower mold base, reducing the probability of the left mold base shaking back and forth. Through the cooperation between the limit slot and the limit insertion post, the connection between the left mold base and the right mold base is realized, reducing the probability of the right mold base shaking back and forth.

[0022] Optionally, the left mold base / right mold base is further provided with a heat preservation and telescopic structure. The heat preservation and telescopic structure includes two groups of heat preservation sliding plates respectively slidably mounted on the left mold base and the right mold base and a reset elastic member connecting the heat preservation sliding plates. The end of the heat preservation sliding plate is provided with a driving inclined surface for the stamping die head to abut against. The stamping part has a second driving surface for pushing the heat preservation sliding plate. When the stamping die head is completely inserted into the product forming cavity, the heat preservation sliding plate is located inside the left mold base / right mold base.

[0023] By adopting the above technical solution, the setting of the heat preservation and telescopic structure enables the top opening of the product forming cavity to be sealed after the left mold base and the right mold base are butted, reducing the leakage of heat from the top of the product forming cavity and realizing multi-item isothermal.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: Through the setting of the heat insulation and heat preservation structure, the present application can reduce the loss and conduction of heat, play a heat preservation effect on the inner wall of the product forming cavity, form a multi-item isothermal effect, and ensure temperature stability; Through the setting of the first inclined surface and the second inclined surface, the present application can realize the locking effect of the upper main mold base on the two side mold bases, reducing the probability of the forging shaking during stamping; Through the setting of the heat preservation and telescopic structure, the present application can further improve multi-item isothermal, reduce the loss of heat from the top opening of the product forming cavity, and at the same time, when the stamping die head descends, the heat preservation sliding plate automatically expands and contracts into the left moving slider / right moving slider. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of Embodiment 1.

[0026] Figure 2 is an exploded view of the side mold body and the stamping lower mold of Embodiment 1.

[0027] Figure 3 is a schematic cross-sectional view after the left and right side mold bodies of Embodiment 1 are butted.

[0028] Figure 4 is the structure of the heat insulation plate of the left mold base and the lower mold base of Embodiment 1.

[0029] Figure 5 is a schematic cross-sectional view of the left mold base and the lower mold base of Embodiment 1 in the front-rear direction.

[0030] Figure 6 It is a schematic cross-sectional view after stamping the upper main die base in Embodiment 1.

[0031] Figure 7 It is a schematic structural view of the limit slot of the right die body in Embodiment 1.

[0032] Figure 8 It is a schematic cross-sectional view of Embodiment 2.

[0033] Explanation of reference numerals: 1, stamping lower die; 11, lower die base; 111, placement bump; 112, second heating groove; 113, limit sliding seat; 12, die base sliding groove; 121, guiding sliding groove; 13, second heating element; 14, anti-retreat mechanism; 2, upper main die base; 21, sleeved groove; 211, second inclined surface; 22, stamping part; 221, second driving surface; 23, stamping die head; 3, left die base; 31, left moving slider; 311, left installation groove; 312, first through groove; 313, second through groove; 314, first inclined surface; 315, installation sliding groove; 316, heat preservation surface; 32, left die body; 321, positioning bump; 322, first heating groove; 323, limit sliding groove; 33, flange base; 34, first heating element; 341, heating section; 342, connecting section; 35, product forming cavity; 36, limit insertion post; 4, right die base; 41, right moving slider; 411, right installation groove; 42, right die body; 421, limit slot; 5, heat insulation plate; 51, positioning hole; 6, heat preservation sliding structure; 61, heat preservation sliding plate; 611, driving inclined surface; 62, reset elastic part. Detailed implementation manners

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the gravity direction. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0035] The following is a further detailed description of the present application in conjunction with the attached Figure 1-8 drawings.

[0036] An embodiment of the present application discloses a multi-item isothermal stamping die. Embodiment

[0037] Referring to Figure 1 and Figure 2 A multi-item isothermal stamping die includes a stamping lower die 1, an upper main die seat 2, and side die seats. A lower die seat 11 for placing a forging is installed on the top of the stamping lower die 1, and a placing bump 111 for positioning and placing the forging is provided on the top of the lower die seat 11.

[0038] The side die seats include a left side die seat 3 and a right side die seat 4 respectively located on both sides of the lower die seat 11. The overall structures of the left side die seat 3 and the right side die seat 4 are the same, and both are slidably installed on the stamping lower die 1.

[0039] Combined with Figure 3 The left side die seat 3 includes a left moving slider 31 and a left die body 32 installed on the left moving slider 31. The right side die seat 4 includes a right moving slider 41 and a right die body 42 installed on the right moving slider 41. Flange seats 33 are fixedly installed on the sides of the left moving slider 31 and the right moving slider 41 that are away from each other, and the flange seats 33 are threadedly connected to an oil cylinder to achieve the horizontal sliding of the left side die seat 3 and the right side die seat 4.

[0040] The stamping lower die 1 has a die seat chute 12 for installing two side die seats. The opposite side walls of the die seat chute 12 have guiding chutes 121 for guiding the sliding of the side die seats, and the guiding chutes 121 are in inclined contact with the two side die seats.

[0041] A stop mechanism 14 is also installed on the top of the stamping lower die 1 seat. The stop mechanism 14 is located on the side where the two side die seats are away from each other. The stop mechanism 14 includes a stop plate detachably installed on the stamping lower die 1. The stop plate is integrally L-shaped, and the top of the stop plate is located in the die seat chute 12, so that the stop plate can limit the sliding of the left and right side die seats 4. Stop plates with different widths are installed according to forgings of different shapes to ensure the positioning of the forging placement.

[0042] First heating elements 34 are installed through the left die body 32 and the right die body 42. Among them, a second heating element 13 is installed through the lower die seat 11. The left die body 32 and the right die body 42 are rectangular blocks, and the length direction of the rectangular block is perpendicular to the sliding direction of the side die seat. The left side die seat 3 and the right side die seat 4 move towards each other. When the left die body 32 and the right die body 42 are in contact, a product forming cavity 35 with an open top and for inserting the upper main die seat 2 is formed between them and the lower die seat 11. In this embodiment, the stamping forming temperature of the forging needs to be maintained at 400 - 500 °C.

[0043] Referring to Figure 3 and Figure 4, heat insulation and heat preservation structures are provided between the left die body 32 and the left moving slider 31, the right die body 42 and the right moving slider 41, and the lower die base 11 and the top of the stamping lower die 1. Through the heat insulation and heat preservation structures, heat dissipation of the left die body 32, the right die body 42 and the lower die base 11 is reduced, the temperature stability of the product forming cavity 35 is ensured, and the energy-saving effect is achieved.

[0044] The heat insulation and heat preservation structure includes a heat insulation board 5, and the heat insulation board 5 is fitted and installed on the surfaces of the left die body 32 and the right die body 42 and the bottom of the lower die base 11. A plurality of positioning holes 51 penetrating through both end faces are arrayed on the heat insulation board 5, and the left die body 32, the right die body 42, and the lower die base 11 all have positioning protrusions 321 that are inserted and matched with the positioning holes 51. In this embodiment, the positioning protrusion 321 is a cylindrical protrusion, and the diameter dimension of the positioning protrusion 321 is adapted to the positioning hole 51, so that after the heat insulation board 5 is installed, the end face of the positioning protrusion 321 is flush with the surface of the heat insulation board 5.

[0045] On one side where the left moving slider 31 and the right moving slider 41 face each other, there are respectively a left installation groove 311 and a right installation groove 411 for fixedly installing the left die body 32 and the right die body 42. The positioning protrusion 321 of the left die body 32 and the heat insulation board 5 are both attached to the inner wall of the left installation groove 311, and the positioning protrusion 321 of the right die body 42 and the heat insulation board 5 are both attached to the inner wall of the right installation groove 411. The left die body 32 and the right die body 42 are both fixed by bolts, so a plurality of groups of bolt holes (not marked in the figure) are provided on the side walls where the left die body 32 and the right die body 42 are away from each other, and the bolt holes and the positioning holes 51 are staggered. The heat insulation board 5 also has through holes corresponding to the bolt holes.

[0046] Refer to Figure 3 and Figure 5 , the structures of the first heating element 34 and the second heating element 13 are the same, and both include a heating section 341 and a connecting section 342. The left die body 32, the right die body 42, and the lower die base 11 all have heating grooves for installing the heating elements. The heating grooves of the left die body 32 and the right die body 42 are defined as the first heating grooves 322, and the heating groove of the lower die base 11 is defined as the second heating groove 112.

[0047] The first heating groove 322 is arranged along the length direction of the left die body 32, and the left moving slider 31 and the right moving slider 41 have first through grooves 312 corresponding to the first heating groove 322. The first heating element 34 sequentially passes through the first through groove 312 and the first heating groove 322. There are gaps between the ends of the first heating element 34 and the inner walls of the left installation groove 311 and the right installation groove 411, so as to reduce the heat transferred from the first heating element 34 to the moving slider.

[0048] The heating section 341 is a heat generating area for generating heat, and the connecting section 342 is a connection area for connecting the heating section 341 and the power supply. The length of the heating section 341 of the first heating element 34 is less than or equal to the length of the first heating groove 322, so that the heat generated by the first heating element 34 is not easily dissipated from the contact surface between the connecting section 342 and the first through groove 312.

[0049] The second heating groove 112 is arranged along the width direction of the left die body 32, that is, the extending direction of the second heating element 13 is parallel to the sliding direction of the two side die seats. Therefore, the left moving slider 31 has a second through groove 313 corresponding to the second heating element 13. The length of the heating section 341 of the second heating element 13 is less than or equal to the length of the second heating groove 112, so that the heat generated by the second heating element 13 is not easily dissipated from the contact surface between the connecting section 342 and the second through groove 313.

[0050] Refer to Figure 6 , the upper main die seat 2 is driven as a whole by an oil cylinder. It has a sleeving groove 21 at the bottom for sleeving the two side die seats, and the sleeving groove 21 is a rectangular groove as a whole. The outer edges of the tops of the left moving slider 31 and the right moving slider 41 are uniformly provided with a first inclined surface 314. The inner wall of the sleeving groove 21 has a second inclined surface 211 that abuts and cooperates with the first inclined surface 314. After the two side die seats abut, the upper main die seat 2 moves downward, so that the sleeving groove 21 is sleeved on the two side die seats. At the same time, the first inclined surface 314 and the second inclined surface 211 are fitted together, realizing the locking of the upper main die seat 2 and the side die seats, and reducing the probability of the forging moving left and right during stamping. A stamping part 22 corresponding to the product forming cavity 35 is installed in the upper main die seat 2, and the stamping part 22 is driven by an oil cylinder. A stamping die head 23 is detachably installed at the bottom of the stamping part 22. After the upper main die seat 2 completes the locking of the side die seats, the stamping part 22 is started again, so that the stamping die head 23 is inserted into the product forming cavity 35.

[0051] Refer to Figure 4 and Figure 7 , in order to reduce the probability of the side die seat moving back and forth, a limit sliding seat 113 is integrally provided at the top of the lower die seat 11 close to the left side die seat 3, and a limit sliding groove 323 for cooperating with the limit sliding seat 113 is provided at the bottom of the left die body 32. A limit insertion post 36 is further provided on the end face of the left die body 32 facing the right die body 42. The limit insertion post 36 and the left die body 32 are fixed by bolts or other means. The right die body 42 has a limit insertion slot 421 for the limit insertion post 36 to insert. Under the cooperation of the limit insertion slot 421 and the limit insertion post 36, the connection between the left and right die bodies 42 is realized.

[0052] Through the cooperation of the first heating groove 322 and the limit sliding seat 113, and the cooperation of the first inclined surface 314 and the second inclined surface 211, the front-back, left-right locking of the left die body 32 and the right die body 42 is realized, ensuring the stability during stamping.

[0053] Example 2. Compared with Example 1 of the present application, except for the addition of a heat-insulating sliding structure, the rest of the structures are the same as those in Example 1.

[0054] Referring to Figure 8 , in order to further ensure the temperature stability of the product forming cavity 35, a heat-insulating sliding structure 6 is also installed on the left mold base 3 and the right mold base 4. The heat-insulating sliding structure 6 includes two groups of heat-insulating sliding plates 61 respectively installed on the two side mold bases and a reset elastic member 62 connecting the heat-insulating sliding plates 61. The heat-insulating sliding plate 61 is made of a heat-insulating material.

[0055] The left moving slider 31 and the right moving slider 41 are provided with installation chutes 315 for installing the heat-insulating sliding plates 61, and the installation chutes 315 are arranged in the horizontal direction. The reset elastic member 62 is a rectangular spring, and its two ends are fixed to the inner wall of the installation chute 315 and the heat-insulating sliding plate 61.

[0056] After the left mold base 3 and the right mold base 4 are abutted, the two heat-insulating sliding plates 61 are also abutted against each other to form a heat-insulating plate, and the heat-insulating plate covers the top opening of the product forming cavity 35, so that the heat dissipation from the top of the product forming cavity 35 can be reduced. The heat-insulating sliding plate 61 is provided with a driving inclined surface 611 at the end away from the installation chute 315, and the two driving inclined surfaces 611 are inclined gradually towards each other from top to bottom, but the heat-insulating sliding plate 61 still has a rectangular fitting surface below the driving inclined surface 611, that is, the cross-section of the heat-insulating sliding plate 61 in the height direction is a right trapezoid, which is used to ensure the heat-insulating area after the two heat-insulating sliding plates 61 are abutted.

[0057] The setting of the driving inclined surface 611 enables a driving groove with an inverted triangular cross-section to be formed after the heat-insulating sliding plates 61 are abutted, and the width of the driving groove is greater than the width of the stamping die head 23, so that when the stamping die head 23 is inserted downward, the two heat-insulating sliding plates 61 can be driven to move away from each other.

[0058] The side wall of the stamping part 22 also has a second driving surface 221 for pushing the heat-insulating sliding plate 61, and the heat-insulating sliding plate 61 is completely pushed into the installation chute 315 through the second driving surface 221. The left moving slider 31 and the right moving slider 41 have a heat-insulating surface 316 attached to the second driving surface 221 at the bottom of the heat-insulating sliding plate 61, which is used to ensure the fitting of the stamping part 22 and the side mold base and reduce heat dissipation.

[0059] The implementation principle of an isothermal multi-stamping die in an embodiment of the present application is as follows: Place the forging on the positioning convex block 321 of the lower mold base 11, start the horizontal oil cylinder, and the left mold base 3 and the right mold base 4 move towards each other. The product forming cavity 35 formed after the two side mold bases are abutted positions the forging. At this time, the heat-insulating sliding plates 61 are in a fitting state; The left die body 32 and the right die body 42 are heated by the first heating element 34, and the lower die base 11 is heated by the second heating element 13. When heated to 400 - 500 °C, the upper main die base 2 is started, and the stamping die head 23 is inserted into the product forming cavity 35 to perform stamping forming on the forging.

[0060] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A multi-element isothermal stamping die, comprising a stamping lower die (1), an upper main die base (2) and a side die base, wherein the stamping lower die (1) is provided with a lower die base (11) for placing a forging, and the side die base comprises a left die base (3) and a right die base (4), characterized in that: The left die base (3) comprises a left movable slider (31) and a left die body (32) arranged on the left movable slider (31), and the right die base (4) comprises a right movable slider (41) and a right die body (42) arranged on the right movable slider (41); the left die body (32) and the right die body (42) are both installed with a first heating element (34) for heating, and the lower die base (11) is provided with a second heating element (13); the left die body (32) and the right die body (42) are abutted to form a product molding cavity (35), and the left die base (3), the right die base (4) and the stamping lower die (1) are all provided with a heat insulation structure for reducing heat loss.

2. A multi-layer isothermal stamping die according to claim 1, characterized in that: The heat insulation structure comprises a heat insulation board (5) fitted and mounted on the left mold body (32) / right mold body (42) / lower mold base (11); the heat insulation board (5) is provided with a plurality of positioning holes (51); and the left mold body (32), the right mold body (42) and the lower mold base (11) are provided with positioning protrusions (321) which are plugged and matched with the positioning holes (51).

3. A multi-layer isothermal stamping die according to claim 2, characterized in that: The left movable slider (31) is provided with a left mounting groove (311) for mounting the left mold body (32), the right movable slider (41) is provided with a right mounting groove (411) for mounting the right mold body (42), and the positioning protrusion (321) fits the bottom of the stamping lower mold (1) / the left mounting groove (311) / the right mounting groove (411).

4. The multi-element isothermal stamping die according to claim 1, characterized in that: The left mold body (32) and the right mold body (42) are both provided with a first heating groove (322) for the first heating element (34) to be inserted, and the lower mold base (11) is provided with a second heating groove (112) for the second heating element (13) to be inserted, and the first heating element (34) and the second heating element (13) both comprise a heating section (341) for generating heat and a connecting section (342) for connecting to a power source, and the length of the heating section (341) is shorter than that of the first heating groove (322) and the second heating groove (112).

5. The multi-element isothermal stamping die according to claim 1, characterized in that: The tops of the left movable slider (31) and the right movable slider (41) are both provided with a first inclined surface (314) on the side away from each other, the bottom of the upper main mold base (2) has a sleeve groove (21) for sleeve-mounting the side mold base, and the sleeve groove (21) has a second inclined surface (211) that abuts against the first inclined surface (314).

6. The multi-element isothermal stamping die according to claim 1, characterized in that: A stamping part (22) is slidably disposed in the upper main die seat (2), and the stamping part (22) is detachably provided with a stamping die head (23) inserted into the product forming cavity (35).

7. The multi-element isothermal stamping die according to claim 1, characterized in that: The lower die base (11) is provided with a guide groove (121) for guiding the left movable slider (31) / right movable slider (41) to slide, and the guide groove (121) is in abutment with the inclined surface of the left movable slider (31) / right movable slider (41).

8. The multi-element isothermal stamping die according to claim 1, characterized in that: The lower mold base (11) is provided with a limit slide (113) on a side close to the left mold base (3); the left mold body (32) is provided with a limit slide (323) cooperating with the limit slide (113); the left mold body (32) is provided with a limit plug (36) on the end face facing the right mold body (42); and the right mold body (42) is provided with a limit slot (421) for inserting the limit plug (36).

9. The multi-element isothermal stamping die according to claim 6, characterized in that: The left mold base (3) / right mold base (4) is also provided with a heat-insulating telescopic structure, which comprises two groups of heat-insulating slide plates (61) respectively slidably mounted on the left mold base (3) and the right mold base (4) and a reset elastic member (62) connected to the heat-insulating slide plates (61). The end of the heat-insulating slide plate (61) is provided with a driving inclined surface (611) for the punching die head (23) to abut against. The punching member (22) has a second driving surface (221) for pushing the heat-insulating slide plate (61). When the punching die head (23) is fully inserted into the product forming cavity (35), the heat-insulating slide plate (61) is located in the left mold base (3) / right mold base (4).

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