CN108672566B - Mould for rolling circle - Google Patents
Mould for rolling circle Download PDFInfo
- Publication number
- CN108672566B CN108672566B CN201810688423.5A CN201810688423A CN108672566B CN 108672566 B CN108672566 B CN 108672566B CN 201810688423 A CN201810688423 A CN 201810688423A CN 108672566 B CN108672566 B CN 108672566B
- Authority
- CN
- China
- Prior art keywords
- die holder
- pusher dog
- poking
- lower die
- upper die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 16
- 210000003813 thumb Anatomy 0.000 claims abstract description 31
- 210000000078 claw Anatomy 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 210000003811 finger Anatomy 0.000 description 11
- 230000005484 gravity Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a mould for rolling circles, which comprises: the device comprises an upper die holder, a lower die holder, an inner support column for supporting the inner side wall of a machined part, an upper die forming block for forming and pressing the upper end of the machined part, two sliding blocks for forming and pressing the left end and the right end of the machined part respectively, two side pushing punches, a thumb wheel support and a thumb wheel, wherein the two side pushing punches, the thumb wheel and the thumb wheel support respectively push the two sliding blocks to move when the upper die holder moves in the die opening direction relative to the lower die holder; the two sliding blocks are connected to the lower die holder in a sliding manner; the side pushing punch, the upper die forming block and the pusher dog bracket are fixed to the upper die holder; the inner support column is mounted to the lower die holder; the inner support column is arranged between the two sliding blocks; the pusher dog bracket is provided with or connected with a limit structure for limiting the rotating position of the pusher dog relative to the pusher dog bracket; the thumb wheel is formed with a poking tooth matched with the poking claw. The mould for rolling is high in rolling roundness.
Description
Technical Field
The invention relates to a mould for rolling circles.
Background
The die is used for stamping the part into a fixed shape in the stamping process, and the rolling die is used for stamping the part into a rolling shape. The roundness of the rolling circle is not high enough when the traditional rolling circle die rolls the part, and the requirement of the part or the semi-finished product on the roundness cannot be met. And the traditional rounding die is complex in operation when loading and unloading parts, and the machined parts are easy to damage, so that the roundness of the parts is influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a die for rolling circles, which is simple to assemble and disassemble and high in rolling circle degree.
In order to achieve the above object, the present invention adopts the following technical scheme:
a die for rounding, comprising: the device comprises an upper die holder, a lower die holder, an inner support column for supporting the inner side wall of a machined part, an upper die forming block for forming and pressing the upper end of the machined part, two sliding blocks for forming and pressing the left end and the right end of the machined part respectively, two side pushing punches, a thumb wheel support and a thumb wheel, wherein the two side pushing punches, the thumb wheel and the thumb wheel support respectively push the two sliding blocks to move when the upper die holder moves in the die opening direction relative to the lower die holder; the two sliding blocks are connected to the lower die holder in a sliding manner; the side pushing punch, the upper die forming block and the pusher dog bracket are fixed to the upper die holder; the inner support column is mounted to the lower die holder; the inner support column is arranged between the two sliding blocks; the thumb wheel is fixed to the inner support column; the pusher dog is rotationally connected to the pusher dog bracket; the pusher dog bracket is provided with or connected with a limit structure for limiting the rotating position of the pusher dog relative to the pusher dog bracket; the thumb wheel is formed with a poking tooth matched with the poking claw.
Further, when the upper die holder moves towards the die assembly direction relative to the lower die holder, the poking teeth of the poking wheel are contacted with the poking claw, and the poking claw rotates relative to the poking claw bracket; when the upper die holder moves towards the die opening direction relative to the lower die holder, the limiting structure is contacted with the pusher dog, and the pusher dog drives the pusher dog to rotate.
Further, when the upper die holder moves from the die closing position to the die opening position relative to the lower die holder, the pusher dog drives the pusher dog to rotate 90 degrees.
Further, the thumb wheel slides relative to the lower die holder along the rotation axis of the thumb wheel.
Further, the die for rounding also comprises a manual control valve for driving the thumb wheel to slide relative to the lower die holder.
Further, the die for rounding further comprises a fixed block; the fixed block is fixed to the lower die holder; the inner support column passes through the fixed block.
Further, the mold for rounding further comprises an air spring for resetting the slider.
Further, the side pushing punch is formed with a driving inclined plane; the driving inclined plane is inclined to the moving direction of the upper die holder relative to the lower die holder; the slider is formed with a mating ramp that mates with the drive ramp.
Further, the dial wheel comprises 4 dial teeth; the 4 poking teeth are uniformly distributed in the circumferential direction of the rotation axis of the poking wheel.
Further, the limiting structure is a limiting pin; the limiting pin is fixed to the pusher dog bracket.
The invention has the advantages that the provided die for rounding has higher machining precision on the machined part and higher roundness after machining the machined part. When the die is opened, the inner support column rotates, so that the inner wall surface of the rolled part has higher roundness, and the roundness of the outer surface of the part is further ensured.
The method for loading and unloading the processed part on the die for rolling is simple and easy to operate, and the roundness and the precision of the processed part are not affected.
Drawings
FIG. 1 is a schematic view of a die for rounding according to the present invention;
FIG. 2 is a schematic view of the mold for rounding of FIG. 1 from another perspective;
FIG. 3 is a schematic view of the upper die holder of the die for the roll-up in FIG. 1;
FIG. 4 is a schematic view of the lower die holder of the die for the roll-up in FIG. 1;
fig. 5 is an enlarged view of a portion of the upper die holder of the die for rounding of fig. 3.
A die 100 for rolling, an upper die holder 10, a lower die holder 20;
the upper die forming block 11, the side pushing punch 12, the pusher dog bracket 13, the pusher dog 14, the limiting structure 15 and the driving inclined plane 121;
the inner support column 21, the sliding block 22, the shifting wheel 23, the shifting tooth 24, the manual control valve 25, the fixed block 26 and the matching inclined plane 221.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 5, a mold 100 for rounding, includes: the die comprises an upper die holder 10, a lower die holder 20, an inner supporting column 21, an upper die forming block 11, two sliding blocks 22, two side pushing punches 12, a thumb wheel 23, a thumb bracket 13 and a thumb 14.
Specifically, the inner support column 21 supports the inner side wall of the workpiece. The outer surface of the inner support column 21 is a cylindrical surface. The part to be machined is sleeved at a preset position on the outer surface of the inner support column 21. The two sliders 22 respectively form and press the left and right ends of the workpiece. The upper die forming block 11 forms and presses the upper end of the processed part. When the upper die holder 10 moves in the die closing direction relative to the lower die holder 20, the two side pushing punches 12 respectively push the two sliding blocks 22 to move in the direction of the inner supporting column 21 until contacting the machined part and molding and pressing the two ends of the machined part. At the same time, the upper die forming block 11 contacts the processed part and forms and presses the upper end of the processed part.
As a specific embodiment, two slides 22 are slidably coupled to the lower die base 20. The side pushing punch 12, the upper die forming block 11 and the pusher dog bracket 13 are fixed to the upper die holder 10. The inner support column 21 is mounted to the lower die holder 20. The inner support column 21 is disposed between two sliders 22.
Specifically, when the upper die holder 10 moves in the die clamping direction relative to the lower die holder 20, the upper die holder 10 drives the driving ramp 121 to move downward. The driving inclined surface 121 and the matching inclined surface 221 drive the sliding block 22 to transversely move through inclined surface matching. The two sliding blocks 22 are respectively close to the inward supporting columns 21 under the action of the two side pushing punches 12, and are used for forming and pressing the two ends of the processed part.
As a specific embodiment, the side push punch 12 is formed with a driving slope 121. The slider 22 is formed with an engagement slope 221 engaged with the driving slope 121. The drive ramp 121 is inclined to the direction of movement of the upper die holder 10 relative to the lower die holder 20. The included angle between the matching inclined surface 221 and the driving inclined surface 121 is equal to the moving direction of the upper die holder 10. The drive ramp 121 and the mating ramp 221 are parallel.
After the upper die forming block 11 and the two sliding blocks 22 form and press the machined part, the pusher dog 14 drives the pusher wheel 23 to rotate when the upper die holder 10 moves towards the die opening direction relative to the lower die holder 20 so as to drive the inner support column 21 to rotate around the rotation axis of the pusher wheel 23 by a certain angle, so that the machined part sleeved on the cylindrical surface of the inner support column 21 is circumferentially ground when the inner support column 21 rotates, and the roundness of the machined part is improved.
When the die is opened, the upper die holder 10 moves in the opening direction, that is, upward with respect to the lower die holder 20. At this time, the upper die holder 10 drives the pusher dog 14 to move upward. The pusher dog 14 pulls the pusher dog 23 to rotate the pusher dog 23, so that the inner support column 21 is driven to rotate by a moving angle. The thumbwheel 23 is fixed to the support column 21. The rotation axis of the thumb wheel 23 and the rotation axis of the support column 21 are collinear.
As a specific embodiment, a thumbwheel 23 is secured to the inner support column 21. Finger 14 is rotatably connected to finger rest 13. The thumb wheel 23 is formed with a thumb tooth 24 that cooperates with the thumb grip 14.
As a specific embodiment, the finger rest 13 is connected with a limiting structure 15 for limiting the rotational position of the finger 14 with respect to the finger rest 13. Specifically, the limiting structure 15 is a limiting pin; the limit pins are fixed to the finger brackets 13.
As an alternative embodiment, the limit structure may also be formed by or be part of a finger rest.
Specifically, when finger 14 is not in contact with thumb wheel 23, finger 14 is in a natural state perpendicular to finger rest 13 under the force of gravity. When the upper die holder 10 moves towards the die assembly direction relative to the lower die holder 20, the poking teeth 24 of the poking wheel 23 are in contact with the poking claws 14, the poking claws 14 rotate relative to the poking claw brackets 13 under the action force applied by the poking teeth 24 and overcoming the gravity of the poking claws 14, so that the poking claws 14 are folded, the poking claw brackets 13 can continue to move towards the die assembly direction to complete die assembly, after die assembly is completed, the poking claws 14 return to a natural state perpendicular to the poking claw brackets 13 under the action of gravity, and the poking claws 13 are opened. When the upper die holder 10 moves towards the die opening direction relative to the lower die holder 20, the limiting structure 15 contacts with the pusher dog 14 to prevent the pusher dog 14 from rotating relative to the pusher dog bracket 13 under the acting force of the pusher dog 23, and the pusher dog 13 cannot open a larger angle. The pusher dog 14 drives the pusher dog wheel 23 to rotate through the pusher dog 24 under the drive of the upper die holder 10, so that the inner support column 21 is driven to rotate.
The inner support column 21 rotates when the mold is opened, so that the inner wall of the rolled part achieves higher roundness.
As a preferred embodiment, the fingers 14 drive the thumb wheel 23 90 degrees when the upper die holder 10 is moved relative to the lower die holder 20 from the closed to the open die position.
As a preferred embodiment, the dial wheel 23 comprises 4 dial teeth 24; the 4 teeth 24 are evenly distributed in the circumferential direction of the rotational axis of the dial wheel 23.
When the die 100 is opened, the side-pushing punch 12 moves upward out of contact with the slide 22. The reset device drives the two sliding blocks 22 to slide in the direction away from the inner supporting column 21 to finish resetting to the initial position. As a specific embodiment, the resetting device is an air spring.
The inner support column 21 moves in the direction of the rotational axis of the thumbwheel 23 to disengage from the part being machined. The machined part is separated from the inner support column 21, and a worker can conveniently take out the machined part. As a preferred embodiment, the thumb wheel 23 slides the inner support column 21 relative to the lower die holder 20 along the rotational axis of the thumb wheel 23 to disengage the part being machined. The axis of rotation of the thumbwheel 23 is perpendicular to the sliding direction of the slider 22. The axis of rotation of the thumb wheel 23 and the sliding direction of the slide 22 are both perpendicular to the direction of movement of the upper die holder 10 relative to the lower die holder 20.
As a specific embodiment, the mold 100 for rounding also includes a manual control valve 25. The manual control valve 25 is controlled to drive the thumb wheel 23 to slide relative to the lower die holder 20 so as to drive the inner support column 21 to slide relative to the lower die holder 20.
The die 100 for rounding also includes a stop structure that prevents the part being processed from sliding along with the inner support post 21 as the inner support post 21 slides relative to the lower die holder 20. As a specific embodiment, the stop structure is a fixed block 26. The fixed block 26 is fixed to the lower die holder 20; the inner support column 21 passes through the fixing block 26.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (4)
1. A die for rounding, comprising: the device comprises an upper die holder, a lower die holder, an inner support column for supporting the inner side wall of a machined part, an upper die forming block for forming and pressing the upper end of the machined part, two sliding blocks for forming and pressing the left end and the right end of the machined part respectively, two side pushing punches, a poking wheel, a poking claw support and a poking claw, wherein the two side pushing punches, the poking wheel and the poking claw support respectively push the two sliding blocks to move when the upper die holder moves in the die opening direction relative to the lower die holder; the two sliding blocks are connected to the lower die holder in a sliding manner; the side pushing punch, the upper die forming block and the pusher dog bracket are fixed to the upper die holder; the inner support column is mounted to the lower die holder; the inner support column is arranged between the two sliding blocks; the thumb wheel is fixed to the inner support column; the pusher dog is rotationally connected to the pusher dog bracket; the pusher dog support is provided with or connected with a limit structure for limiting the rotating position of the pusher dog relative to the pusher dog support; the poking wheel is provided with poking teeth matched with the poking claws;
when the upper die holder moves towards the die closing direction relative to the lower die holder, the poking teeth of the poking wheel are in contact with the poking claw, and the poking claw rotates relative to the poking claw bracket; when the upper die holder moves towards the die opening direction relative to the lower die holder, the limiting structure is in contact with the pusher dog, and the pusher dog drives the pusher dog to rotate;
when the upper die holder moves from a die closing position to a die opening position relative to the lower die holder, the pusher dog drives the pusher dog to rotate by 90 degrees;
the thumb wheel slides relative to the lower die holder along the rotation axis of the thumb wheel;
the side pushing punch is formed with a driving inclined plane; the driving inclined plane is inclined to the moving direction of the upper die holder relative to the lower die holder; the sliding block is provided with a matching inclined plane matched with the driving inclined plane;
the dial wheel comprises 4 dial teeth; the 4 poking teeth are uniformly distributed in the circumferential direction of the rotating axis of the poking wheel;
the limiting structure is a limiting pin; the limiting pin is fixed to the pusher dog bracket;
the inner support column rotates when the die is opened, so that the inner wall of the rolled part achieves higher roundness.
2. The mold for rounding according to claim 1, wherein,
the die for rolling the circles further comprises a manual control valve for driving the thumb wheel to slide relative to the lower die holder.
3. The mold for rounding according to claim 1, wherein,
the die for rolling up the circles further comprises a fixed block; the fixed block is fixed to the lower die holder; the inner support column passes through the fixed block.
4. The mold for rounding according to claim 1, wherein,
the die for rounding also comprises an air spring for resetting the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688423.5A CN108672566B (en) | 2018-06-28 | 2018-06-28 | Mould for rolling circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688423.5A CN108672566B (en) | 2018-06-28 | 2018-06-28 | Mould for rolling circle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108672566A CN108672566A (en) | 2018-10-19 |
| CN108672566B true CN108672566B (en) | 2024-04-02 |
Family
ID=63812665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810688423.5A Active CN108672566B (en) | 2018-06-28 | 2018-06-28 | Mould for rolling circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672566B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530550A (en) * | 2018-12-29 | 2019-03-29 | 江阴复睿金属科技有限公司 | A kind of multi-process one-pass molding stamping die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000216320A (en) * | 1999-01-26 | 2000-08-04 | Toshiba Corp | Lead molding device for semiconductor device |
| US6098869A (en) * | 1996-04-22 | 2000-08-08 | Elpatronic Ag | Seam welding method and apparatus |
| CN201644561U (en) * | 2010-05-28 | 2010-11-24 | 惠州安特科技工业有限公司 | Automatic roundness correcting device of round tubular part |
| CN202570998U (en) * | 2012-03-27 | 2012-12-05 | 安徽江南机械有限责任公司 | Roll forming mold for hinge seat of trunk |
| CN105363912A (en) * | 2015-11-24 | 2016-03-02 | 重庆研艺科技有限公司 | Horizontal-type unilateral circle-curling die for thin plate |
| CN208467016U (en) * | 2018-06-28 | 2019-02-05 | 浙江正鼎汽车零部件有限公司 | Mold for edge rolling |
-
2018
- 2018-06-28 CN CN201810688423.5A patent/CN108672566B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6098869A (en) * | 1996-04-22 | 2000-08-08 | Elpatronic Ag | Seam welding method and apparatus |
| JP2000216320A (en) * | 1999-01-26 | 2000-08-04 | Toshiba Corp | Lead molding device for semiconductor device |
| CN201644561U (en) * | 2010-05-28 | 2010-11-24 | 惠州安特科技工业有限公司 | Automatic roundness correcting device of round tubular part |
| CN202570998U (en) * | 2012-03-27 | 2012-12-05 | 安徽江南机械有限责任公司 | Roll forming mold for hinge seat of trunk |
| CN105363912A (en) * | 2015-11-24 | 2016-03-02 | 重庆研艺科技有限公司 | Horizontal-type unilateral circle-curling die for thin plate |
| CN208467016U (en) * | 2018-06-28 | 2019-02-05 | 浙江正鼎汽车零部件有限公司 | Mold for edge rolling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108672566A (en) | 2018-10-19 |
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