CN220005641U

CN220005641U - Stamping die

Info

Publication number: CN220005641U
Application number: CN202321095465.0U
Authority: CN
Inventors: 潘旭华
Original assignee: Zhejiang Yawei Precision Machine Tool Co Ltd
Current assignee: Zhejiang Yawei Precision Machine Tool Co Ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-14
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a stamping die, which belongs to the technical field of dies and comprises an upper die and a lower die, wherein the upper die comprises an upper die seat and a punch positioning plate, a plurality of punch positioning holes are formed in the punch positioning plate, and punches are arranged in the punch positioning holes; the lower die comprises a lower die base and a female die, wherein the female die is provided with a shaped hole, the punch heads are arranged in one-to-one correspondence with the shaped hole, each punch head comprises a mounting section and a punching section, and the size of each mounting section is larger than that of each punching section; the punch positioning holes and the punch positioning holes are arranged in one-to-one correspondence and have the same size, and the punch positioning holes can be processed in a superposition way; the device also comprises a guiding sliding component, an upper positioning hole is arranged on the punch positioning plate, a lower positioning hole is arranged on the female die, the upper locating holes and the lower locating holes are arranged in one-to-one correspondence, the sizes of the upper locating holes and the lower locating holes are completely consistent, and the upper locating holes and the lower locating holes can be processed in a superposition mode. The utility model can eliminate the relative error of the center distance, and has the effects of convenient assembly and uniform clearance between the punch and the profile hole.

Description

Stamping die

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a stamping die.

Background

The die or the die part in the stamping composite die has high requirements on the size and uniformity of the gap between the punch and the female die, so that high requirements are put on the processing and assembling of parts, errors are generated on the center distances between the punch positioning hole on the punch positioning plate and the die and between the punch positioning hole on the die and the positioning hole for positioning and guiding the sliding component due to the limitation on the processing precision of a processing machine tool, and the requirements on the technical workers are high in the prior art through manual adjustment of technical workers in the assembling process. To this end we provide a stamping die.

Disclosure of Invention

The utility model aims to provide a stamping die, which is characterized in that the sizes and the shapes of punch locating holes on a punch locating plate and holes on a female die are designed to be completely consistent, and an upper locating hole and a lower locating hole for locating and guiding a sliding component are respectively arranged on the punch locating plate and the female die, and the shapes and the sizes are completely consistent, so that the punch locating plate and the female die can be processed in a superposition way, the relative error of center distance is completely eliminated, and the stamping die has the effects of being convenient to assemble and enabling gaps between the punch and the holes to be uniform.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the stamping die comprises an upper die and a lower die, wherein the upper die comprises an upper die seat and a punch positioning plate arranged below the upper die seat, a plurality of punch positioning holes are formed in the punch positioning plate, and punches are arranged in the punch positioning holes; the lower die comprises a lower die seat and a female die arranged above the lower die seat, wherein a plurality of forming holes matched with the punches are formed in the female die, the punches are arranged in one-to-one correspondence with the forming holes, the punches comprise mounting sections for transition fit or interference fit with the punch positioning holes and stamping sections matched with the forming holes, and the size of the mounting sections is larger than that of the stamping sections; the punch positioning holes and the punch positioning holes are arranged in one-to-one correspondence and have the same size, and the punch positioning holes can be processed in a superposition way; the punch positioning plate is provided with upper positioning holes in transition fit or interference fit with the guide sliding assembly, the female die is provided with lower positioning holes in transition fit or interference fit with the guide sliding assembly, the upper positioning holes and the lower positioning holes are arranged in one-to-one correspondence and are completely consistent in size, and projection of each upper positioning hole and the corresponding lower positioning hole in the vertical direction are completely overlapped and can be overlapped.

Preferably, the guide sliding assembly comprises a guide sleeve and a guide column in sliding fit with the guide sleeve, and the guide sleeve and the guide column are respectively provided with an outer circle positioning section matched with the upper positioning hole and the lower positioning hole.

Preferably, when interference fit is adopted, the two matched parts are divided into a containing part and a contained part, a plurality of inclined grooves are formed on the contact contour of at least one part, and inclined cantilevers are formed between every two inclined grooves.

Preferably, a stripper plate is arranged between the punch positioning plate and the female die, the stripper plate is provided with perforations for the punching section of the punch to pass through, the perforations are arranged in one-to-one correspondence with the shaped holes, the sizes of the perforations are completely consistent with those of the shaped holes, and the projection of each perforation in the vertical direction is completely overlapped with the projection of the corresponding shaped hole;

preferably, the unloading plate is provided with an unloading guide sleeve and is connected through a bolt, the unloading guide sleeve is provided with a guide through hole which is used for being matched with the guide sleeve in a sliding manner, and the size of the guide through hole is completely consistent with that of the upper locating hole and the lower locating hole which are correspondingly arranged.

Preferably, the mounting section and the punching section of the punch are integrally formed, and the punch is arranged in a T shape.

Compared with the prior art, the utility model has the beneficial effects that: through the complete coincidence of the shape design of the punch locating hole on the punch locating plate and the shape design of the die hole on the female die, and the upper locating hole and the lower locating hole for locating and guiding the sliding component are respectively arranged on the punch locating plate and the female die, and the shape and the size are completely consistent, so that the punch locating plate and the female die can be processed in a superposition way, the relative error of the center distance is completely eliminated, and the punch locating plate has the effects of being convenient to assemble and enabling the clearance between the punch and the die hole to be uniform.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic structural view of the punch of the present utility model.

Fig. 3 is a schematic structural view of the present utility model when the punch positioning hole is in interference fit with the punch.

In the figure: 1. an upper die holder; 2. a lower die holder; 3. a punch positioning plate; 4. a female die; 5. a punch; 51. a mounting section; 52. stamping the section; 6. a shaped hole; 71. an outer circle positioning section; 72. sliding the positioning section; 8. guide sleeve; 81. a guide hole; 82. a guide section; 9. an upper positioning hole; 10. a lower positioning hole; 11. a stripper plate; 12. perforating; 13. a compression spring; 141. a limit part; 142. a smooth section; 143. a threaded section; 15. a discharging guide sleeve; 16. a guide through hole; 17. a chute; 18. and (3) a cantilever.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the present utility model provides a stamping die, which comprises an upper die and a lower die, wherein the upper die comprises an upper die holder 1 and a punch positioning plate 3 arranged below the upper die holder 1, a plurality of punches 5 are arranged on the punch positioning plate 3, and specifically, punch positioning holes (not shown in the figure) for positioning the punches 5 are arranged on the punch positioning plate 3. The lower die comprises a lower die holder 2 and a female die 4 arranged above the lower die holder 2, the shape and the size of the female die 4 are completely consistent with those of the punch locating plate 3, a plurality of holes 6 matched with the punches 5 are formed in the female die 4, and a plurality of punches 5 are arranged in one-to-one correspondence with the holes 6. In this embodiment, the cross section of the punch 5 is in a T-shape, specifically, the punch 5 includes a mounting section 51 and a punching section 52, and the mounting section 51 is used for transition fit or interference fit with the punch positioning hole; the punching section 52 is adapted to fit the shaped hole 6, and the size of the mounting section 51 is larger than the size of the punching section 52. As shown in fig. 3, when the mounting section 51 is in interference fit with the punch positioning hole, the two mating members are divided into a female member and a female member, and at least one member has a contact profile provided with a plurality of inclined grooves 17. In this embodiment, the containing member is a punch positioning hole, the contained member is a mounting section 51 of the punch 5, the plurality of inclined grooves 17 are uniformly distributed on the contact contour of the punch positioning hole, and inclined cantilevers 18 are formed between every two inclined grooves 17, and when the two inclined grooves 17 are matched, the cantilevers 18 elastically deform to enable the punch positioning hole to be tightly matched with the mounting section 51. In addition, the sizes of the punch positioning holes and the profile holes 6 are completely consistent, the projection of each punch positioning hole and the profile hole 6 which is correspondingly arranged in the vertical direction are completely overlapped, and the punch positioning holes and the profile holes can be processed in a superposition mode.

As shown in fig. 1, a guide sliding assembly is arranged between the upper die and the lower die, and the upper die can do linear reciprocating motion along the vertical direction relative to the lower die through the guide sliding assembly. The guide sliding assembly comprises a guide sleeve 8 and a guide column, the guide sleeve 8 and the guide column are both provided with an outer circle positioning section 71, and a guide hole 81 which is in sliding fit with the guide column is formed in the guide sleeve 8. The guide sleeve 8 is arranged on the upper die holder 1 in a threaded manner, the guide hole 81 penetrates through the upper die holder 1, and the guide column is arranged on the lower die holder 2 and is in sliding fit with the guide hole 81. The guide column further comprises a sliding positioning section 72 extending upwards from the middle of the outer circle positioning section 71, wherein the outer circle positioning section 71 of the guide column is arranged on the lower die holder 2 in a threaded manner; the size of the guide cylinder outer circle positioning section 71 is the same as that of the guide sleeve 8 outer circle positioning section 71, the size of the sliding positioning section 72 is matched with the inner diameter of the guide hole 81, and the sliding positioning section 72 is matched with the guide hole 81 in a sliding manner.

In order to facilitate positioning of the relative positions of the punch 5 and the die 4, the assembly process is simplified, and the working efficiency is improved. An upper positioning hole 9 is formed in the punch positioning plate 3, the upper positioning hole 9 is used for being in transition fit or interference fit with an outer circle positioning section 71 of the guide sleeve 8, a lower positioning hole 10 is formed in the female die 4, and the lower positioning hole 10 is used for being in transition fit or interference fit with the outer circle positioning section 71 of the guide column. The shape and the size of the upper positioning hole 9 and the lower positioning hole 10 are completely consistent.

The punch positioning plate 3 and the die 4 are provided with a stripper plate 11 for unloading, the stripper plate 11 is movably connected with the upper die holder 1 through an adjusting piece, the adjusting piece comprises a vertical rod inserted in the upper die holder 1 and a limiting part 141 arranged at the top of the vertical rod and positioned on the upper surface of the upper die holder 1 for limiting, the vertical rod comprises a smooth section 142 and a threaded section 143 connected with the smooth section 142, the smooth section 142 is in clearance insertion with the upper die holder 1 and the punch positioning plate 3, and the threaded section 143 is in threaded connection with the stripper plate 11 and can adjust the relative distance between the stripper plate 11 and the punch positioning plate 3 through the threaded section 143. And compression springs 13 are fixedly arranged on the stripper plate 11, the compression springs 13 are sleeved outside the vertical rods of the adjusting piece, and the top ends of the compression springs are connected with the lower surface of the punch positioning plate 3. In order to facilitate discharging, the stripper plate 11 is provided with a plurality of perforations 12 through which the punches 5 can penetrate, the perforations 12 are in one-to-one correspondence with the punches 5, the inner diameter of each perforation 12 is larger than the size of the punching section 52 of the punch 5, friction force between the punch 5 and the perforations 12 in the process of penetrating the punches 12 can be prevented from affecting the work of the punches 5, specifically, the perforations 12 are in one-to-one correspondence with the shaped holes 6, the sizes of the perforations are completely consistent, and the projection of each perforation 12 on the vertical direction of the corresponding arranged shaped hole 6 is completely overlapped. Meanwhile, the unloading plate 11 is provided with an unloading guide sleeve 15 and is connected through bolts, the cross section of the unloading guide sleeve 15 is in an inverted T-shaped arrangement, the unloading guide sleeve 15 is provided with a guide through hole 16 which is used for being in sliding fit with the guide sleeve 8, the guide sleeve 8 further comprises a guide section 82, the size of the guide section 82 is smaller than that of the outer circle positioning section 71, the guide through hole 16 is in sliding fit with the guide section 82, and the guide through hole 16 is completely consistent with the sizes of the upper positioning hole 9 and the lower positioning hole 10 which are correspondingly arranged.

In the present utility model, since the upper positioning hole 9 of the punch positioning plate 3 is completely aligned with the lower positioning hole 10 of the die 4 and the guide through hole 16 of the discharge guide bush 15, the punch positioning plate 3, the die 4, and the discharge plate 11 can be overlapped when the upper positioning hole 9, the lower positioning hole 10, and the guide through hole 16 are processed. In addition, because the punch locating plate 3 is consistent with the shape of the female die 4, and the punch locating holes formed in the punch locating plate 3 are in one-to-one correspondence with the holes 6 formed in the female die 4 and the through holes 12 formed in the stripper plate 11, the punch locating plate 3, the female die 4 and the stripper plate 11 can be subjected to superposition processing, and further, the relative error of center distance is completely eliminated, and the punch locating plate has the effects of being convenient to assemble and enabling gaps between the punch 5 and the holes 6 to be uniform.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A stamping die, characterized in that: the die comprises an upper die and a lower die, wherein the upper die comprises an upper die holder (1) and a punch positioning plate (3) arranged below the upper die holder (1), a plurality of punch positioning holes are formed in the punch positioning plate (3), and punches (5) are arranged in the punch positioning holes; the lower die comprises a lower die holder (2) and a female die (4) arranged above the lower die holder (2), wherein a plurality of holes (6) matched with the punches (5) are formed in the female die (4), the punches (5) are arranged in one-to-one correspondence with the holes (6), the punches (5) comprise mounting sections (51) used for being in transition fit or interference fit with the punch positioning holes, and stamping sections (52) matched with the holes (6), and the size of the mounting sections (51) is larger than that of the stamping sections (52); the punch positioning holes and the punch holes (6) are arranged in one-to-one correspondence and have the same size, and the punch positioning holes and the punch holes can be processed in a superposition way; the punch positioning plate (3) is provided with an upper positioning hole (9) in transition fit or interference fit with the guide sliding assembly, the female die (4) is provided with a lower positioning hole (10) in transition fit or interference fit with the guide sliding assembly, the upper positioning holes (9) and the lower positioning holes (10) are arranged in one-to-one correspondence, the sizes of the upper positioning holes and the lower positioning holes are completely consistent, the projection of each upper positioning hole (9) and the projection of the corresponding lower positioning hole (10) on the vertical direction are completely coincident, and the upper positioning hole and the projection of the corresponding lower positioning hole (10) on the vertical direction can be overlapped for processing.

2. A stamping die as defined in claim 1, wherein: the guide sliding assembly comprises a guide sleeve (8) and a guide column in sliding fit with the guide sleeve (8), and the guide sleeve (8) and the guide column are respectively provided with an outer circle positioning section (71) matched with the upper positioning hole (9) and the lower positioning hole (10).

3. A stamping die as defined in claim 1, wherein: when interference fit is adopted, the two matching parts are divided into a containing part and a contained part, a plurality of inclined grooves (17) are formed in the contact profile of at least one part, and inclined cantilevers (18) are formed between every two inclined grooves (17).

4. A stamping die as defined in claim 1, wherein: the punch positioning plate (3) and the female die (4) are provided with a stripper plate (11), the stripper plate (11) is provided with perforations (12) used for a punching section (52) of a punch (5) to pass through, the perforations (12) are arranged in one-to-one correspondence with the forming holes (6) and the sizes of the two are completely consistent, and the projections of each perforation (12) and the corresponding forming hole (6) in the vertical direction are completely overlapped.

5. A stamping die as defined in claim 4, wherein: the automatic unloading device is characterized in that an unloading guide sleeve (15) is arranged on the unloading plate (11) and is connected through a bolt, a guide through hole (16) which is used for being matched with the guide sleeve (8) in a sliding mode is formed in the unloading guide sleeve (15), and the guide through hole (16) is completely consistent with the upper positioning hole (9) and the lower positioning hole (10) which are correspondingly arranged in size.

6. A stamping die as defined in claim 1, wherein: the mounting section (51) and the stamping section (52) of the punch (5) are integrally formed, and the punch (5) is arranged in a T shape.