CN113275466B

CN113275466B - Die capable of molding and clamping sheet metal part

Info

Publication number: CN113275466B
Application number: CN202110728914.XA
Authority: CN
Inventors: 席靖宁; 张俊霞; 孟庆舒; 马绿州; 冯辉; 周民杰
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Zhengzhou Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Zhengzhou Electric Appliances Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2023-04-11
Anticipated expiration: 2041-06-29
Also published as: CN113275466A

Abstract

The invention relates to a die capable of molding and clamping a sheet metal part, which comprises an upper die, a lower die and a pressing assembly arranged between the upper die and the lower die, wherein the upper die and the lower die can perform punch forming on a main body of the sheet metal part in the die closing process so as to enable the sheet metal part to form an expected structure with adjacent side walls, and simultaneously enable a card and a bayonet to be clamped at the joint of the adjacent side walls of the expected structure; the pressing component can bend the card at the joint of the adjacent side walls of the expected structure in the process of closing the upper die and the lower die, so that the bent card and the bayonet form a clamping structure. The die can implement molding and clamping on a sheet metal part in the one-step die closing process, so that the problem that the existing molding die and clamping die are low in production efficiency when in use can be solved, and one set of processing equipment can be omitted, so that the manual input, the processing cost and the like are reduced.

Description

Die capable of molding and clamping sheet metal part

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a die capable of forming and clamping a sheet metal part.

Background

In processing a sheet metal part, if a target part is formed by a forming and clamping process, a forming die and a clamping die need to be used. Wherein the forming mold is used for stamping the sheet metal part into a desired structure (i.e. a finished or semi-finished product of the target part, such as a box shape) with adjacent side walls, and the clamping mold is used for clamping the adjacent side walls of the desired structure to prevent the adjacent side walls from separating from each other. The existing forming die and clamping die can form and clamp sheet metal parts, but have the defect of low production efficiency in use.

Disclosure of Invention

In order to solve all or part of the problems, the invention aims to provide a die capable of molding and clamping sheet metal parts, which is used for solving the problem of low production efficiency of the existing molding die and clamping die in use.

The invention provides a die capable of molding and clamping a sheet metal part, wherein the sheet metal part comprises a main body, a card arranged on the edge of the main body and a bayonet arranged on the edge of the main body, and the die comprises an upper die, a lower die and a pressing component arranged between the upper die and the lower die, wherein the upper die and the lower die can perform punch forming on the main body of the sheet metal part in the die assembly process so as to form the sheet metal part into a desired structure with adjacent side walls, and simultaneously, the card and the bayonet are clamped at the joint of the adjacent side walls of the desired structure; the pressing assembly can bend the card at the joint of the adjacent side walls of the expected structure in the process of closing the upper die and the lower die, so that the folded card and the bayonet form a clamping structure.

Further, the hold-down assembly includes a press block selectively movable toward and away from the desired configuration, the press block having a V-shaped groove configured to impart a press-bending to the card upon contact with the desired configuration.

Furthermore, the pressing assembly further comprises an inserting block arranged on the upper die, a stop block fixedly arranged on the lower die, a sliding rod penetrating through the stop block and fixedly connected with the pressing block, an anti-falling component arranged at the end part of the sliding rod far away from the pressing block and a return spring sleeved on the sliding rod and positioned between the anti-falling component and the stop block, wherein the inserting block can be inserted between the stop block and the pressing block in the process of closing the upper die and the lower die, and drives the pressing block to move towards the expected structure until the card is bent by the V-shaped groove.

Further, the hold-down assembly further comprises a linear guide disposed between the press block and the lower die and allowing the press block to slide relative to the lower die, a central axis of the linear guide being perpendicular to and coplanar with a seam of adjacent sidewalls of the desired structure.

Furthermore, a first guide inclined plane is arranged at the end part, close to the lower die, of the insertion block, and a second guide inclined plane capable of being matched with the first guide inclined plane is arranged on the pressing block.

Further, the number of the pressing components is multiple.

Furthermore, the die further comprises a switching cushion block arranged between the lower die and the pressing assembly.

Furthermore, the upper die comprises an upper die main body and a punch arranged on the upper die main body, and the lower die comprises a lower die main body, an elastic resetting member arranged on the lower die main body, a material dragging plate arranged on the elastic resetting member, and a plurality of bending female dies arranged on the lower die main body and surrounding the material dragging plate.

Furthermore, the die also comprises a plurality of positioning rods which are arranged on the lower die main body in a dispersed mode and can prevent the sheet metal part from shaking on the material dragging plate.

Further, the die comprises a guide sleeve arranged on one of the upper die main body and the lower die main body and a guide pillar arranged on the other of the upper die main body and the lower die main body, and the guide pillar can be inserted into the guide sleeve in a matched mode when the upper die and the lower die are combined.

According to the technical scheme, the die capable of forming and clamping the sheet metal part integrates the forming die and the clamping die together, so that the sheet metal part can be subjected to punch forming and clamping in a one-step die assembly process, the problem that the existing forming die and clamping die are low in production efficiency when used can be solved, a set of processing equipment can be omitted, and accordingly labor input and processing cost are reduced. In addition, the die has the advantages of simple structure, easy assembly, safe and reliable use and convenient implementation, popularization and application.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the figure:

FIG. 1 is a first usage state diagram of a die capable of molding and clamping a sheet metal part according to an embodiment of the invention;

FIG. 2 is a schematic structural view of a lower die of the mold shown in FIG. 1;

FIG. 3 is a second usage state diagram of the mold capable of molding and clamping the sheet metal part according to the embodiment of the invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a third use state diagram of the die capable of molding and clamping the sheet metal part according to the embodiment of the invention;

fig. 6 is a partially enlarged view of fig. 5 at B.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The invention will be further explained with reference to the drawings.

Fig. 1, 3 and 5 all show a die capable of forming and clamping a sheet metal part according to an embodiment of the invention. The die can perform forming and clamping on the sheet metal part 200. The sheet metal part 200 includes a main body, a card 202 disposed on an edge of the main body, and a bayonet 203 disposed on the edge of the main body, as shown in detail in fig. 4 and 6. As shown in fig. 1, 2, 3 and 5, the mold includes an upper mold 1, a lower mold 2, and a hold-down assembly 3 provided between the upper mold 1 and the lower mold 2. The number of the pressing members 3 may be one or more, but in the present embodiment, the number of the pressing members 3 is preferably plural. In the using process, the upper die 1 and the lower die 2 can punch and form the main body of the sheet metal part 200 in the die assembly process, so that the sheet metal part 200 is formed into a desired structure with adjacent side walls, and meanwhile, the card 202 and the bayonet 203 are clamped at the joint of the adjacent side walls of the desired structure; the hold-down assembly 3 is capable of bending the card 202 at the seam between the adjacent sidewalls of the desired configuration during closing of the upper and lower

dies

1, 2 to form the folded card 202 into a card-tight configuration with the card opening 203.

According to the embodiment of the invention, the die can punch and clamp the sheet metal part in the one-step die assembly process, so that the problem of low production efficiency of the existing forming die and clamping die in use can be solved, and a set of processing equipment can be omitted, thereby reducing the labor input, the processing cost and the like. In addition, the die has the advantages of simple structure, easy assembly, safe and reliable use and convenient implementation, popularization and application.

In the present embodiment, the pressing member 3 includes a pressing piece 31 capable of being selectively moved toward or away from a desired configuration, and the pressing piece 31 has a V-shaped groove 31a capable of performing press bending on the card 202 when contacting the desired configuration, as shown in detail in fig. 4 and 6. The clamping structure processed by the V-shaped groove 31a is reliable in performance and attractive. Wherein, the movement of the pressing block 31 can be driven by a linear driving mechanism such as an air cylinder, an electric cylinder, etc.

In this embodiment, in order to reduce the manufacturing cost and energy required by the mold, a purely mechanical driving mechanism is used instead of a linear driving mechanism, that is, the pressing assembly 3 further includes an insertion block 32 disposed on the upper mold 1, a stop block 33 fixedly disposed on the lower mold 2, a slide rod 34 penetrating through the stop block 33 and fixedly connected to the pressing block 31 (see fig. 5 for details), an anti-falling member 35 disposed on an end portion of the slide rod 34 away from the pressing block 31, and a return spring 36 sleeved on the slide rod 34 and located between the anti-falling member 35 and the stop block 33. The insert 32 is inserted between the stopper 33 and the presser 31 during the closing of the upper and

lower molds

1 and 2, and drives the presser 31 toward a desired configuration until the V-shaped groove 31a bends the card 202. The retaining member 35 may be a shoulder structure, a nut, or the like, but is preferably a nut or the like that can be screwed to the slider 34.

In the present embodiment, the hold-down assembly 3 further comprises a linear guide 37 disposed between the pressing block 31 and the lower die 2 and allowing the pressing block 31 to slide relative to the lower die 2, the central axis of the linear guide 37 being perpendicular to and coplanar with the target joint of the adjacent side walls of the desired structure. This linear guide 37 can effectively stabilize the motion of briquetting 31, guarantees that the V-arrangement groove can more accurately carry out the bending to card 202.

In this embodiment, a first guiding inclined plane is provided on the end of the insert block 32 close to the lower die 2, and a second guiding inclined plane capable of matching with the first guiding inclined plane is provided on the pressing block 31. During the process of closing the upper die 1 and the lower die 2, the first guiding inclined surface and the second guiding inclined surface which are matched with each other help the insert block 32 to be smoothly inserted between the stop block 33 and the pressing block 31, so that the insert block 32 can timely push the pressing block 31 to move towards the expected structure until the card 202 is bent by the V-shaped groove.

In this embodiment, the mold may further include an adapter pad 4 disposed between the lower mold 2 and the hold-down assembly 3, as shown in detail in fig. 1. The adapter pad 4 is used to increase the height of the pressing assembly 3 to ensure that the pressing assembly 3 can accurately bend the card 202. The connection between the adapting cushion block 4 and the lower die 2 and the connection between the adapting cushion block and the pressing component 3 can be detachable connection or non-detachable connection. In the actual manufacturing process, it should be selected according to actual needs, and if the height of the pressing assembly 3 is high enough to ensure that the pressing assembly 3 can perform accurate bending on the card 202, the adaptor pad 4 can be omitted.

In the present embodiment, the upper die 1 includes an upper die body 11 and a punch 12 (see fig. 1) provided on the upper die body 11, and the lower die 2 includes a lower die body 21, an elastic restoring member 22 provided on the lower die body 21, and a retainer plate 23 (see fig. 2) provided on the elastic restoring member 22, and a plurality of bending die 24 provided on the lower die body 21 and arranged around the retainer plate 23. Wherein the elastic reset component can be selected as springs arranged in an array form or a spring skeleton structure used in the mattress, etc. When the upper die 1 and the lower die 2 are clamped, the punch 12 can press the sheet metal part and force the sheet metal part into a desired shape under the cooperation of the material dragging plate 23 and the bending die 24. The bending female dies 24 are used for forming the side walls of the expected structure, and each bending female die 24 can be used for forming only one side wall of the expected structure, so that the number of the side walls is the same as that of the side walls of the expected structure. The stripper plate 23 is used to form the base plate of the desired configuration. The material dragging plate 23 can be forced to move downwards and compress the elastic resetting component 22 when the sheet metal part 200 is deformed, so that the elastic resetting component 22 can ensure that the material dragging plate 23 can restore to the initial position after the punch forming is completed.

In this embodiment, the mold further includes a plurality of positioning rods 25 disposed on the lower mold body 21 in a distributed manner and capable of preventing the sheet metal part 200 from shaking on the mop plate. When sheet metal component 200 is put on towing plate 23, a plurality of locating levers 25 support and lean on the edge of the main part of sheet metal component and carry out the location to it, guarantee that sheet metal component 200 can accurately form expected structure after by stamping forming.

In this embodiment, the mold further includes a guide bush 51 provided on one of the upper and

lower mold bodies

11 and 21 and a guide post 52 provided on the other of the upper and

lower mold bodies

11 and 21, the guide post 52 being fittingly inserted into the guide bush 51 when the upper and

lower molds

1 and 2 are combined. The guide pillar 52 and the guide sleeve 51 are used for positioning the upper die 1 and the lower die 2, and dislocation of the upper die 1 and the lower die 2 in the die assembly process is prevented.

In conclusion, the die can mold and clamp the sheet metal part 200 in a one-step die closing process, so that the problem that the existing molding die and clamping die are low in production efficiency when used can be solved, a set of processing equipment can be omitted, and accordingly manual investment and processing cost and the like are reduced.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention disclosed, and such changes or variations should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The die is characterized by comprising an upper die, a lower die and a pressing assembly arranged between the upper die and the lower die, wherein the upper die and the lower die can punch and form the main body of the sheet metal part in a die assembly process so as to form the sheet metal part into an expected structure with adjacent side walls, and the card and the bayonet are clamped at the joint of the adjacent side walls of the expected structure; the pressing assembly can bend the card at the joint of the adjacent side walls of the expected structure in the process of closing the upper die and the lower die, so that the folded card and the bayonet form a clamping structure;

the hold-down assembly includes a press block selectively movable toward and away from the desired configuration, the press block having a V-shaped groove configured to impart a press bend to the card upon contact with the desired configuration.

2. The mold of claim 1, wherein the pressing assembly further comprises an insert block disposed on the upper mold, a stop block fixedly disposed on the lower mold, a slide rod penetrating the stop block and fixedly connected to the pressing block, an anti-separation member disposed on an end of the slide rod away from the pressing block, and a return spring disposed on the slide rod and between the anti-separation member and the stop block, wherein the insert block can be inserted between the stop block and the pressing block during the closing of the upper mold and the lower mold, and drives the pressing block to move toward the desired structure until the card is bent by the V-shaped groove.

3. The mold of claim 2, wherein the hold-down assembly further comprises a linear guide disposed between the press block and the lower mold and allowing the press block to slide relative to the lower mold, a central axis of the linear guide being perpendicular to the seam of the adjacent sidewalls of the desired structure and being coplanar with one another.

4. The mold according to claim 2, wherein a first guide slope is provided on an end portion of the insert block adjacent to the lower mold, and a second guide slope capable of cooperating with the first guide slope is provided on the press block.

5. The mold according to any one of claims 1 to 4, wherein the number of the pressing members is plural.

6. The mold of any of claims 1-4, further comprising an adapter pad disposed between the lower mold and the hold-down assembly.

7. The die according to any one of claims 1 to 4, wherein the upper die comprises an upper die body and a punch provided on the upper die body, and the lower die comprises a lower die body, an elastic return member provided on the lower die body, and a stripper plate provided on the elastic return member, and a plurality of bending dies provided on the lower die body and arranged around the stripper plate.

8. The mold according to claim 7, further comprising a plurality of positioning rods disposed on the lower mold body in a dispersed manner and capable of preventing the sheet metal part from shaking on the stripper plate.

9. The die as claimed in any one of claims 1 to 4, further comprising a guide bush provided on one of the upper and lower die bodies and a guide post provided on the other of the upper and lower die bodies, the guide post being fittingly insertable into the guide bush when the upper and lower dies are combined.