CN112756481A - Stamping die for spatial flexible hinge with planar composite structure - Google Patents
Stamping die for spatial flexible hinge with planar composite structure Download PDFInfo
- Publication number
- CN112756481A CN112756481A CN202011587563.7A CN202011587563A CN112756481A CN 112756481 A CN112756481 A CN 112756481A CN 202011587563 A CN202011587563 A CN 202011587563A CN 112756481 A CN112756481 A CN 112756481A
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- pressing block
- clamping assembly
- bending
- stamping die
- composite structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
- B21D5/0236—Tool clamping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a planar composite structure space compliant hinge stamping die which comprises a moving pair bending module and a revolute pair bending module, wherein a through hole is formed in a first bending block of the moving pair bending module and is used for a first clamping assembly to pass through, the motion track of the first clamping assembly is limited, and the first clamping assembly is prevented from being deviated in the bending process to cause processing failure; in addition, the revolute pair bending module comprises a second clamping assembly, a vertical pressing block and a pair of horizontal pressing blocks, a limiting structure for limiting the moving track of the horizontal pressing block is arranged on the second clamping assembly, the lower end of the short edge bending part for the vertical pressing block to pass through is arranged, the movement track of the horizontal pressing block and the movement track of the vertical pressing block in the working process are limited, the fact that the horizontal pressing block and the vertical pressing block can accurately act on a preset deformation area of the metal sheet is guaranteed, and the processing yield is greatly improved.
Description
Technical Field
The invention relates to the technical field of metal plate forming, in particular to a stamping die for a spatial compliant hinge with a planar composite structure.
Background
The centralized compliant mechanism is mainly made of cut and formed metal sheets, the centralized compliant mechanism is small in size and thickness, the deformation is regular spatial deformation, the length of the deformation section is centralized between 1mm and 2mm, and the preset area of the metal sheets cannot be accurately deformed by processing with a common stamping die.
In order to completely realize each function of the processed centralized compliant mechanism, different positions of the metal sheet need to be bent accurately, and other fixed positions cannot be deformed, otherwise the metal sheet is wasted.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a stamping die for a spatial compliant hinge of a planar composite structure.
The stamping die for the planar composite structure space compliant hinge comprises a moving pair bending module, a first clamping assembly, a first bending block and a second bending block, wherein a through hole for the first clamping assembly to pass through is formed in the middle of the first bending block; and the revolute pair bending module comprises a second clamping assembly, a vertical pressing block arranged above the second clamping assembly and a pair of horizontal pressing blocks arranged on two sides of the second clamping assembly, a limiting structure is formed on the second clamping assembly to limit the moving track of the horizontal pressing block, and a short edge bending part for the lower end of the vertical pressing block to penetrate through is arranged on the second clamping assembly.
The stamping die for the planar composite structure space compliant hinge provided by the embodiment of the invention at least has the following beneficial effects: the space compliant hinge stamping die with the planar composite structure comprises a moving pair bending module and a revolute pair bending module, wherein a through hole is formed in a first bending block of the moving pair bending module and is used for a first clamping assembly to pass through, the motion track of the first clamping assembly is limited, and the situation that the first clamping assembly deviates in the bending process to cause processing failure is prevented; in addition, the revolute pair bending module comprises a second clamping assembly, a vertical pressing block and a pair of horizontal pressing blocks, a limiting structure for limiting the moving track of the horizontal pressing block is arranged on the second clamping assembly, the lower end of the short edge bending part for the vertical pressing block to pass through is arranged, the movement track of the horizontal pressing block and the movement track of the vertical pressing block in the working process are limited, the fact that the horizontal pressing block and the vertical pressing block can accurately act on a preset deformation area of the metal sheet is guaranteed, and the processing yield is greatly improved.
According to some embodiments of the invention, the vertical pressing block comprises a pair of spaced-apart upright posts, and the upright posts are respectively located at two ends of the second clamping assembly.
According to some embodiments of the invention, the second clamping assembly is provided with a second upper pressing block and a second lower pressing block arranged below the second upper pressing block, and the short edge bending part comprises first grooves formed in two end side walls of the second lower pressing block.
According to some embodiments of the invention, two horizontal pressing blocks are symmetrically distributed on two sides of the second clamping assembly.
According to some embodiments of the invention, the horizontal pressing block is provided with a plurality of protrusions near the side wall of the second clamping assembly, and the limiting structure is a limiting groove formed in the top wall of the second lower pressing block and used for sliding in each protrusion.
According to some embodiments of the invention, the top wall of the second lower pressing block is formed with a protrusion extending upwards, and the bottom wall of the second upper pressing block is provided with a slot for the protrusion to enter.
According to some embodiments of the invention, the top wall of the second lower pressing block is provided with a pair of strip-shaped grooves which are arranged in parallel at intervals, the strip-shaped grooves extend along the length direction of the second lower pressing block, and the cross sections of the strip-shaped grooves are in an inverted triangle shape.
According to some embodiments of the invention, the through hole penetrates through the top and the bottom of the first bending block, the top of the first bending block is provided with a deformation groove with two open ends, and the deformation groove extends along the length direction of the first bending block and is communicated with the through hole.
According to some embodiments of the invention, inner chamfers are provided on upper portions of both sidewalls of the deformation groove.
According to some embodiments of the invention, the upper surface of the side wall of the deformation groove is a curved surface.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a schematic composition diagram of a revolute pair bending module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a revolute pair bending module according to an embodiment of the present invention;
FIG. 3 is a structural view of a second pressure-reducing block according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a moving pair bending module according to an embodiment of the present invention;
fig. 5 is a schematic working diagram of a sliding pair bending module according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 5, the stamping die for the planar composite structure space compliant hinge in the embodiment of the invention comprises a moving pair bending module and a revolute pair bending module, wherein the moving pair bending module is provided with a first clamping assembly and a first bending block 22, and the revolute pair bending module comprises a second clamping assembly, a vertical pressing block 12 arranged above the second clamping assembly and a pair of horizontal pressing blocks 13 arranged at two sides of the second clamping assembly.
Specifically, a through hole 221 for the first clamping assembly to pass through is formed in the middle of the first bending block 22, a limiting structure is formed on the second clamping assembly to limit the moving track of the horizontal pressing block 13, and a short-edge bending portion for the lower end of the vertical pressing block 12 to pass through is formed on the second clamping assembly.
According to the stamping die for the planar composite structure space compliant hinge, which is disclosed by the embodiment of the invention, the stamping die comprises a moving pair bending module and a rotating pair bending module, a through hole 221 is formed in a first bending block 22 of the moving pair bending module and is used for a first clamping assembly to pass through, the motion track of the first clamping assembly is limited, and the situation that the first clamping assembly deviates in the bending process to cause processing failure is prevented; in addition, the revolute pair bending module comprises a second clamping assembly, a vertical pressing block 12 and a pair of horizontal pressing blocks 13, a limiting structure for limiting the moving track of the horizontal pressing block 13 is arranged on the second clamping assembly, a short edge bending part is arranged to allow the lower end of the vertical pressing block 12 to pass through, the movement track of the horizontal pressing block 13 and the movement track of the vertical pressing block 12 in the working process are limited, the fact that the two bending modules can accurately act on a preset deformation area of a metal sheet is guaranteed, and the processing yield is greatly improved.
It should be noted that, in the flexible hinge stamped by using the stamping die for the planar composite structure space flexible hinge according to the embodiment of the present invention, before bending, the sliding pair 3 is a hollowed rectangular planar structure with a short side fixed, and the rotating pair 4 is a hollowed rectangular planar structure with a long side fixed outside.
In some embodiments, as shown in fig. 1, the vertical pressing block 12 includes a pair of spaced vertical posts and a cross beam connected to the upper ends of the vertical posts, and the vertical pressing block 12 is integrally U-shaped, wherein the two vertical posts are respectively located at two ends of the second clamping assembly. More specifically, in this embodiment, the second clamping assembly includes a second upper pressing block 111 and a second lower pressing block 112 disposed below the second upper pressing block 111, and the short-side bent portion is a first groove 1121 formed on the side wall of each end of the second lower pressing block 112; further, in order to avoid the second upper pressing block 111 from obstructing the downward movement of the vertical pressing block 12, in this embodiment, second grooves are respectively formed on the two end side walls of the second upper pressing block 111, and each second groove coincides with the vertical central line of the first groove 1121 located below the second groove, it can be understood that the width of the second groove should be no less than the width of the first groove 1121.
Referring to fig. 1, the two horizontal pressing blocks 13 are symmetrically distributed on two sides of the second clamping assembly, specifically, on two sides of the second pressing block 112. The side wall of the horizontal pressing block 13 close to the second clamping component is provided with three protrusions, the three protrusions on the same horizontal pressing block 13 are arranged at equal intervals, and the limiting structure is a limiting groove 1122 formed in the top wall of the second lower pressing block 112 and used for allowing the protrusions to slide in. It is emphasized that in other embodiments, the number of projections may be one, two, or more than three. It can be understood that, in order to avoid the lateral displacement of the second upper pressing block 111 and the second lower pressing block 112 during the working process, the top wall of the second lower pressing block 112 of the present embodiment is formed with a protrusion 1124 extending upward, and in match with the protrusion 1124, the bottom wall of the second upper pressing block 111 is provided with a slot for the protrusion 1124 to enter, and the position of the second upper pressing block 111 and the second lower pressing block 112 is limited by the protrusion 1124 and the slot which are matched with each other; it is emphasized that the cross-sectional profile of the protrusion 1124 has at least one line segment to prevent unwanted relative rotation between the upper two pressing blocks 111 and the lower two pressing blocks 112.
As shown in fig. 3, in this embodiment, a pair of strip-shaped grooves 1123 is further disposed on the top wall of the second lower pressing block 112 at an interval, the two strip-shaped grooves 1123 are respectively disposed on two sides of the protrusion 1124, specifically, the strip-shaped grooves 1123 extend along the length direction of the second lower pressing block 112, and the cross section of the strip-shaped grooves 1123 is in an inverted triangle shape. The arrangement of the strip-shaped groove 1123 reserves a deformation space for bending the long edge of the revolute pair and also provides support for bending the long edge of the revolute pair; wherein, the angle of the bottom contained angle of the bar groove 1123 of this embodiment is 45 degrees, and the long limit of revolute pair can realize 45 degrees bendings in the bar groove 1123.
In some embodiments, as shown in fig. 4, in this embodiment, the through hole 221 penetrates through the top and the bottom of the first bending block 22, and the top of the first bending block 22 is provided with a deformation groove with two open ends, and the deformation groove extends along the length direction of the first bending block 22 and is communicated with the through hole 221. Because the side wall of the deformation groove is used for bending the long side of the moving pair, in order to ensure the consistency of the deformation of the two long sides of the moving pair, the deformation groove is arranged at the middle position of the top of the first bending block 22, the wall thicknesses of the two side walls of the deformation groove are equal, and the first bending block 22 can be in a bilateral symmetry structure integrally. In order to prevent stress concentration during the bending process, the upper surface of the side wall provided with the deformation groove in the present embodiment is a curved surface, and at the same time, inner chamfers 222 are respectively provided on the upper portions of the two side walls of the deformation groove.
More specifically, referring to fig. 4, the first clamping assembly of the present embodiment includes a first upper pressing block 211 and a first lower pressing block 212 that are engaged with each other; the top wall of the first lower pressing block 212 is fixed with a boss extending upwards, and the bottom wall of the first upper pressing block 211 is dug with a positioning hole for accommodating the boss, so that it can be understood that the cross section profile of the boss has at least one segment, and the shape and size of the cross section of the boss are consistent with the shape and size of the cross section of the positioning hole; so, under the cooperation of boss and locating hole, the relative position on the horizontal direction behind the gentle and agreeable hinge of briquetting 211 and the lower briquetting 212 centre gripping of a number is fixed, has effectively prevented in the punching press that the two from taking place the skew to the situation emergence of punching press failure has been avoided.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Plane composite construction space gentle and agreeable hinge stamping die, its characterized in that: comprises that
The moving pair bending module is provided with a first clamping assembly and a first bending block, and a through hole for the first clamping assembly to pass through is formed in the middle of the first bending block; and
the revolute pair bending module comprises a second clamping assembly, a vertical pressing block arranged above the second clamping assembly and a pair of horizontal pressing blocks arranged on two sides of the second clamping assembly, a limiting structure is formed on the second clamping assembly to limit the moving track of the horizontal pressing block, and a short edge bending portion for the lower end of the vertical pressing block to penetrate through is arranged on the second clamping assembly.
2. The planar composite structure spatially compliant hinge stamping die of claim 1, wherein: the vertical pressing block comprises a pair of stand columns arranged at intervals, and the two stand columns are respectively positioned at two ends of the second clamping assembly.
3. The planar composite structure spatially compliant hinge stamping die of claim 2, wherein: the second clamping assembly is provided with a second upper pressing block and a second lower pressing block arranged below the second upper pressing block, and the short edge bending part comprises a first groove formed in the side walls of the two ends of the second lower pressing block.
4. The planar composite structure spatially compliant hinge stamping die of claim 3, wherein: the two horizontal pressing blocks are symmetrically distributed on two sides of the second clamping assembly.
5. The planar composite structure spatially compliant hinge stamping die of claim 4, wherein: the side wall of the horizontal pressing block, which is close to the second clamping component, is provided with a plurality of protrusions, and the limiting structure is a limiting groove which is formed on the top wall of the second lower pressing block and used for the protrusions to slide in.
6. The planar composite structure spatially compliant hinge stamping die of claim 3, wherein: and a protrusion part extending upwards is formed on the top wall of the second lower pressing block, and a slotted hole is formed in the bottom wall of the second upper pressing block and used for the protrusion part to enter.
7. The planar composite structure spatially compliant hinge stamping die of claim 6, wherein: no. two briquetting down's roof sets up the bar groove that a pair of parallel interval set up, the bar groove is followed the length direction of No. two briquetting down extends, just the transversal inverted triangle-shaped of personally submitting in bar groove.
8. The planar composite structure spatially compliant hinge stamping die of claim 1, wherein: the through hole penetrates through the top and the bottom of the first bending block, a deformation groove with two open ends is formed in the top of the first bending block, and the deformation groove extends along the length direction of the first bending block and is communicated with the through hole.
9. The planar composite structure spatially compliant hinge stamping die of claim 8, wherein: and inner chamfers are arranged at the upper parts of the two side walls of the deformation groove.
10. The planar composite structure spatially compliant hinge stamping die of claim 9, wherein: the upper surface of the side wall of the deformation groove is an upward protruding cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587563.7A CN112756481B (en) | 2020-12-28 | 2020-12-28 | Stamping die for spatial flexible hinge with planar composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587563.7A CN112756481B (en) | 2020-12-28 | 2020-12-28 | Stamping die for spatial flexible hinge with planar composite structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112756481A true CN112756481A (en) | 2021-05-07 |
| CN112756481B CN112756481B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011587563.7A Active CN112756481B (en) | 2020-12-28 | 2020-12-28 | Stamping die for spatial flexible hinge with planar composite structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1203991A (en) * | 1967-05-26 | 1970-09-03 | Prec Presswork Co Ltd | Improvements in or relating to the bending of sheet metal |
| CN102371299A (en) * | 2011-09-28 | 2012-03-14 | 安徽永钰过滤器有限公司 | Forming device for neck of cover casing of filter |
| CN204867063U (en) * | 2015-07-01 | 2015-12-16 | 西安隆源电器有限公司 | No indentation bender utensil |
| CN207266974U (en) * | 2017-08-30 | 2018-04-24 | 广州新星实业公司 | A kind of sheet metal apparatus for bending |
| CN207308629U (en) * | 2017-09-04 | 2018-05-04 | 广东劲胜智能集团股份有限公司 | A kind of shaping tool |
| CN207494336U (en) * | 2017-09-26 | 2018-06-15 | 芳源企业（上海）有限公司 | Shape of chinese word Ji Bending Mould |
| CN210547428U (en) * | 2019-06-27 | 2020-05-19 | 安特（惠州）工业有限公司 | Three-section type 180-degree bending device |
| CN111940550A (en) * | 2020-06-18 | 2020-11-17 | 路荞瑀 | Stamping equipment for metal plate bending |
-
2020
- 2020-12-28 CN CN202011587563.7A patent/CN112756481B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1203991A (en) * | 1967-05-26 | 1970-09-03 | Prec Presswork Co Ltd | Improvements in or relating to the bending of sheet metal |
| CN102371299A (en) * | 2011-09-28 | 2012-03-14 | 安徽永钰过滤器有限公司 | Forming device for neck of cover casing of filter |
| CN204867063U (en) * | 2015-07-01 | 2015-12-16 | 西安隆源电器有限公司 | No indentation bender utensil |
| CN207266974U (en) * | 2017-08-30 | 2018-04-24 | 广州新星实业公司 | A kind of sheet metal apparatus for bending |
| CN207308629U (en) * | 2017-09-04 | 2018-05-04 | 广东劲胜智能集团股份有限公司 | A kind of shaping tool |
| CN207494336U (en) * | 2017-09-26 | 2018-06-15 | 芳源企业（上海）有限公司 | Shape of chinese word Ji Bending Mould |
| CN210547428U (en) * | 2019-06-27 | 2020-05-19 | 安特（惠州）工业有限公司 | Three-section type 180-degree bending device |
| CN111940550A (en) * | 2020-06-18 | 2020-11-17 | 路荞瑀 | Stamping equipment for metal plate bending |
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| Publication number | Publication date |
|---|---|
| CN112756481B (en) | 2022-04-22 |
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