CN210125679U - Automatic unloading stamping die of swivel chair chassis bottom plate - Google Patents
Automatic unloading stamping die of swivel chair chassis bottom plate Download PDFInfo
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- CN210125679U CN210125679U CN201920664784.6U CN201920664784U CN210125679U CN 210125679 U CN210125679 U CN 210125679U CN 201920664784 U CN201920664784 U CN 201920664784U CN 210125679 U CN210125679 U CN 210125679U
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Abstract
The utility model relates to an automatic blanking stamping die for a bottom plate of a chassis of a swivel chair, which comprises an upper die and a lower die, wherein the upper die is provided with a plurality of stamping positions; the punching positions comprise a middle hole punching position, an arc edge punching position, a straight edge punching position and a blanking position which are arranged in sequence; on the mesopore punching press position, along the entering direction of flitch, be equipped with corner cut punching pin, the punching pin of punching waist shape hole and the punching pin of punching the mesopore in proper order, wherein: the two angle cutting punches are distributed on two sides of the material plate, the heads of the angle cutting punches face inwards, and the two sides of the heads are provided with concave parts corresponding to the lower arc angle and the upper arc angle respectively. The depressed parts on the two sides of the head of the chamfering punch simultaneously punch the two corner parts of the lower arc angle and the upper arc angle, thereby not only improving the production efficiency, but also leading the two sides of the head of the chamfering punch to be more balanced in stress, and further obtaining higher molding quality.
Description
Technical Field
The utility model relates to a stamping die especially relates to an automatic unloading stamping die of swivel chair chassis bottom plate.
Background
The base body of the base plate of the swivel chair chassis is made of a plate material and is provided with a plurality of straight edges, arc edges, a plurality of holes which are distributed in different areas and have different shapes, and four arc-shaped corner parts; therefore, in the stamping process, the material plate bears stamping forces with different sizes at different positions, so that local deformation is easily formed to influence the forming quality; particularly, more punching forming is needed, more punching positions are generally adopted under the condition of ensuring the forming quality, and the production efficiency is not easy to improve.
Disclosure of Invention
The utility model mainly aims at providing an automatic unloading stamping die of swivel chair chassis bottom plate, it has better shaping quality and higher production efficiency.
The above technical problem of the present invention can be solved by the following technical solutions: an automatic blanking stamping die for a base plate of a chassis of a swivel chair comprises an upper die and a lower die, wherein the upper die and the lower die are provided with a plurality of stamping positions; the punching positions comprise a middle hole punching position, an arc edge punching position, a straight edge punching position and a blanking position which are arranged in sequence; on the mesopore punching press position, along the entering direction of flitch, be equipped with corner cut punching pin, the punching pin of punching waist shape hole and the punching pin of punching the mesopore in proper order, wherein: the two angle cutting punches are distributed on two sides of the material plate, the heads of the angle cutting punches face inwards, and the two sides of the heads are provided with concave parts corresponding to the lower arc angle and the upper arc angle respectively. Through the scheme, the concave parts on the two sides of the head of the corner cutting punch are used for punching the lower arc angle and the upper arc angle simultaneously, so that the production efficiency is improved, the stress on the two sides of the head of the corner cutting punch is more balanced, and the higher forming quality is obtained.
Preferably, a punch for punching two vertex angle holes is further arranged on the middle hole punching position, and the punch and the corner cutting punch are respectively arranged at two ends of the middle hole punching position. The two ends of the punching area of the material plate are stressed, the material plate is not easy to deform, the forming effect of subsequent punching actions is avoided being influenced, and the integral forming quality is further improved.
Preferably, at the arc-edge punching position, punches for punching arc edges are arranged at two sides of the material plate, each punch is provided with two protrusions matched with the arc edge of the base plate of the revolving chair chassis, and a concave part opposite to the straight edge of the base plate of the revolving chair chassis is arranged between the two protrusions; in the area where the two punching arc edge punches are opposite, the middle part is provided with a punch for punching a typeface in the typing area. Four arc edges at two sides of the bottom plate of the swivel chair chassis are simultaneously formed; the punch for punching characters in the typing area is arranged between the two punching arc-edge punches, so that the trend of deformation of the middle part of the flitch can be effectively counteracted.
Preferably, at the straight-edge stamping position, two sides of the material plate are provided with punches for stamping the straight edge of the base plate of the swivel chair chassis; the two sides of the straight edge punch are respectively provided with a punch for punching two bottom angle holes and a punch for punching characters in the typing area. The punch for punching the two bottom angle holes and the punch for punching the character in the typing area can offset the trend of deformation of the middle part of the material plate caused by impact forces on two sides; and the two side material plates of the straight edge punch are impacted to form balanced stress.
Therefore, through the technical scheme, the utility model discloses both have better shaping quality, have higher production efficiency again.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is a schematic view of a structure of a base plate of a swivel chair chassis;
wherein: 1. a material plate; 2. a middle hole punching position; 3. punching a position by an arc edge; 4. straight edge stamping positions; 5. material level dropping; 21. a corner cutting punch; 31. a typing punch; 41. punching a square hole; 60. straight sides; 61. a lower arc angle; 62. an upper arc angle; 63. a typing area; 64. a square hole; 65. a vertex angle hole; 66. arc edge; 67. a bottom corner hole; 68. a mesopore; 69. a waist-shaped hole.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the utility model relates to an automatic blanking stamping die for a base plate of a revolving chair chassis, which comprises an upper die and a lower die with a plurality of stamping positions, as shown in attached figures 1, 2 and 3; the punching positions comprise a middle hole punching position 2, an arc edge punching position 3, a straight edge punching position 4 and a blanking position 5 which are arranged in sequence; wherein: the middle hole punching position 2 is a punching position for punching a middle hole 68 of the bottom plate of the chassis of the swivel chair, the arc edge punching position 3 is a punching position for punching an arc edge 66 of the bottom plate of the chassis of the swivel chair, the straight edge punching position 4 is a punching position for punching a straight edge 60 of the bottom plate of the chassis of the swivel chair, and the blanking position 5 is a punching position for cutting the bottom plate of the chassis of the swivel chair from a material plate to fall off. The feeding mechanism feeds the area to be formed of the material plate 1 to the punching positions in sequence in a stepping mode.
As shown in fig. 2, in the middle hole punching position 2, a corner cutting punch 21, a punch for punching a waist-shaped hole 69 and a punch for punching a middle hole 68 are sequentially arranged along the entering direction of the flitch 1, wherein: the two angle cutting punches 21 are distributed on two sides of the material plate 1, the heads of the angle cutting punches 21 are inward, and the two sides of the heads are provided with concave parts corresponding to the lower arc angle 61 and the upper arc angle 62 respectively. After the flitch 1 gets into, the depressed part of corner cut punch 21 head both sides is earlier followed, and two bights of arc angle 61 and last arc angle 62 are made simultaneously to the while, have both improved production efficiency, still make corner cut punch 21 head both sides atress more balanced simultaneously.
And a punch for punching two vertex angle holes 65 is also arranged on the middle hole punching position 2, and the punch and the corner cutting punch 21 are respectively arranged at two ends of the middle hole punching position 2, so that two ends of a punching area of the material plate 1 are stressed, the material plate in the area is not easy to deform, the forming effect of subsequent punching action is prevented from being influenced, and the integral forming quality is improved.
In the arc edge punching position 3, punches for punching the arc edges 66 are arranged on two sides of the material plate 1, each punch is provided with two protrusions matched with the arc edges 66, and a concave part opposite to the straight edge 60 is arranged between the two protrusions; in the area where the two punching arc edges 66 are opposite, the middle part is provided with a punch for punching a typeface in the typing area 63. The punches for punching the arc edges 66 are provided with two bulges, so that the four arc edges 66 on the two sides of the base plate of the revolving chair chassis are simultaneously formed; in addition, because the impact force of the punching arc edges 66 is large, the middle part of the material plate in the area is easy to form an upward arched internal pressure, and therefore, the punch for punching the character in the typing area 63 is arranged between the two punching arc edges 66, the deformation trend can be effectively counteracted, and the forming quality of the arc edges 66 is improved.
In the straight edge stamping position 4, two sides of the material plate 1 are provided with punches for stamping the straight edge 60; the two sides of the punch for punching the straight edge 60 are respectively provided with a punch for punching two bottom corner holes 67 and a punch for punching a character pattern in the typing area 63. According to the same principle of the scheme, the punch for punching the two bottom corner holes 67 and the punch for punching the character in the typing area 63 can offset the trend of deformation of the middle part of the flitch caused by impact force on two sides; in addition, the punches for punching the two bottom corner holes 67 and the punches for punching the characters in the typing zone 63 are positioned at the two sides of the punch for punching the straight edge 60, so that the material plates at the two sides receive the impact force, and the balanced stress effect is formed.
In the utility model, the base body of the base plate of the swivel chair chassis is a plate, as shown in the attached figure 3, the base plate is provided with a straight edge 60, a lower arc angle 61, an upper arc angle 62, a typing area 63, a square hole 64, a top angle hole 65, an arc edge 66, a bottom angle hole 67, a middle hole 68 and a waist-shaped hole 69.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides an automatic unloading stamping die of swivel chair chassis bottom plate, includes last mould and the lower mould that has a plurality of punching press position, its characterized in that: the punching positions comprise a middle hole punching position (2), an arc edge punching position (3), a straight edge punching position (4) and a blanking position (5) which are arranged in sequence; on mesopore punching press position (2), along the entering direction of flitch (1), be equipped with corner cut punching pin (21), the punching pin of punching waist shape hole (69) and the punching pin of punching mesopore (68) in proper order, wherein: the two angle cutting punches (21) are distributed on two sides of the material plate (1), the heads of the angle cutting punches (21) are inward, and the two sides of the heads are provided with concave parts corresponding to the lower arc angle (61) and the upper arc angle (62) respectively.
2. The automatic blanking stamping die of the base plate of the swivel chair chassis as claimed in claim 1, wherein: and a punch for punching two vertex angle holes (65) is also arranged on the middle hole punching position (2), and the punch and the corner cutting punch (21) are respectively arranged at two ends of the middle hole punching position (2).
3. The automatic blanking stamping die for the base plate of the revolving chair chassis as claimed in claim 1 or 2, wherein: in the arc edge punching position (3), punches for punching arc edges (66) are arranged on two sides of the material plate (1), each punch is provided with two protrusions matched with the arc edge (66), and a concave part opposite to the straight edge (60) is arranged between the two protrusions; in the area where the two punching arc edges (66) are opposite to each other, the middle part is provided with a punch for punching characters in the typing area (63).
4. The automatic blanking stamping die for the base plate of the revolving chair chassis as claimed in claim 1 or 2, wherein: in the straight edge stamping position (4), two sides of the material plate (1) are provided with punches for stamping the straight edge (60); the two sides of the punch for punching the straight edge (60) are respectively provided with the punch for punching two bottom corner holes (67) and the punch for punching a typeface in the typing area (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920664784.6U CN210125679U (en) | 2019-05-10 | 2019-05-10 | Automatic unloading stamping die of swivel chair chassis bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920664784.6U CN210125679U (en) | 2019-05-10 | 2019-05-10 | Automatic unloading stamping die of swivel chair chassis bottom plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210125679U true CN210125679U (en) | 2020-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920664784.6U Active CN210125679U (en) | 2019-05-10 | 2019-05-10 | Automatic unloading stamping die of swivel chair chassis bottom plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210125679U (en) |
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2019
- 2019-05-10 CN CN201920664784.6U patent/CN210125679U/en active Active
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