CN210387135U - Adjustable sealing punch for internal high-pressure forming equipment - Google Patents
Adjustable sealing punch for internal high-pressure forming equipment Download PDFInfo
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- CN210387135U CN210387135U CN201921181895.8U CN201921181895U CN210387135U CN 210387135 U CN210387135 U CN 210387135U CN 201921181895 U CN201921181895 U CN 201921181895U CN 210387135 U CN210387135 U CN 210387135U
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Abstract
The utility model relates to an adjustable sealing punch for internal high-pressure forming equipment, which comprises an external punch, an internal punch, a blank pipe fitting and a sealing ring; the right side of the outer punch is provided with an installation groove, the inner punch is installed in a cylindrical groove of the outer punch, and the outer punch and the inner punch are in clearance fit connection; an annular sliding groove is formed in the inner wall of the cylindrical groove of the outer punch, a sliding block matched with the annular sliding groove is arranged on the outer side wall of the inner punch, and when the inner punch is arranged in the cylindrical groove of the outer punch, the sliding block of the inner punch is arranged in the annular sliding groove of the outer punch; a sealing ring is arranged on the inner wall of the opening of the cylindrical groove on the outer punch, a step is arranged at one end, positioned at the opening of the cylindrical groove on the outer punch, of the inner punch, and the depth of the cylindrical groove in the outer punch is larger than the length of the inner punch; the blank pipe fitting is sleeved on the step of the inner punch and clamped in the cylindrical groove of the outer punch, and the sealing ring is arranged between the blank pipe fitting and the inner wall of the cylindrical groove. Through the utility model discloses, can realize pressure regulating, sealed effect.
Description
Technical Field
The utility model relates to an adjustable sealed drift for interior high pressure former belongs to the plastic forming field.
Background
The internal high-pressure formed member has light weight, good product quality, flexible product design and simple process, and has the characteristics of near-net-shape forming, green manufacturing and the like, thereby being widely applied to the field of light weight of automobiles. Through effective cross section design and wall thickness design, many automobile parts can all be made into the single integral component of complicated structure with standard tubular product through interior high pressure forming. Obviously, the method is superior to the traditional stamping and welding mode in the aspects of product quality, production process simplicity and the like. Most hydroforming processes require only one punch (or hydroforming punch) that conforms to the shape of the part, and the rubber diaphragm on the hydroforming machine functions as a common female die, thus the die cost is about 50% less than that of the conventional die. Compared with the traditional stamping forming which needs a plurality of working procedures, the hydraulic forming only needs one step to form the same part.
The internal high-pressure forming is mainly divided into three stages, namely a forming stage, a shaping stage and a pressure maintaining stage. Wherein the control of the pressure parameters is crucial. In the initial stage of forming, the blank tube is placed in a die cavity and clamped, and axial punches at both ends are horizontally pushed to form a seal. During the forming process, the internal pressure is increased too fast, so that the pipe wall thinning rate is too high and cracking defects are caused. Too slow a rise in internal pressure can lead to defects such as wrinkles. Most of the current equipment for pressure control in the pressure maintaining stage is realized by a high-pressure oil system. The utility model discloses press the numerous and diverse current situation of control in order to solve in the forming process, can realize that the drift adjusts interior pressure, simplify the structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at pressing the regulation flow in the high pressure forming process is numerous and diverse in the present, provide a simple and easy, can realize pressure regulating, the sealed effect be used for interior high pressure forming equipment's adjustable sealed drift of structure.
The utility model aims at realizing the purpose, and discloses an adjustable sealing punch for internal high-pressure forming equipment, which is characterized by comprising an outer punch, an inner punch, a blank pipe fitting and a sealing ring;
a cylindrical groove is formed in the right side of the outer punch, the inner punch is installed in the cylindrical groove of the outer punch, and the outer punch and the inner punch are connected in a clearance fit manner; an annular sliding groove is formed in the inner wall of the cylindrical groove of the outer punch, a sliding block matched with the annular sliding groove is arranged on the outer side wall of the inner punch, and when the inner punch is arranged in the cylindrical groove of the outer punch, the sliding block of the inner punch is arranged in the annular sliding groove of the outer punch;
a sealing ring is arranged on the inner wall of the opening of the cylindrical groove on the outer punch, a step is arranged at one end, positioned at the opening of the cylindrical groove on the outer punch, of the inner punch, and the depth of the cylindrical groove in the outer punch is larger than the length of the inner punch; the blank pipe fitting is sleeved on the step of the inner punch and clamped in the cylindrical groove of the outer punch, and the sealing ring is arranged between the blank pipe fitting and the inner wall of the cylindrical groove to play a role in sealing;
a first pipe cavity is arranged in the outer punch, an oil inlet of the first pipe cavity is positioned at the top of the outer punch, and an oil outlet of the first pipe cavity is positioned at the right side of the outer punch; a second pipe cavity is arranged on the inner punch, an oil inlet of the second pipe cavity is positioned on the left side of the inner punch, and an oil outlet of the second pipe cavity is positioned on the right side of the inner punch; when the inner punch is arranged in the cylindrical groove of the outer punch, the outlet of the first pipe cavity is communicated with the opening of the second pipe cavity.
The inner wall of the opening of the cylindrical groove on the outer punch is provided with a sealing groove, and the sealing ring is installed and fixed in the sealing groove.
The contact part of the cavity wall of the first cavity and the cavity wall of the second cavity is sealed.
The utility model discloses it is rational in infrastructure, through the utility model discloses, a but provide a sealed drift of adjustable for interior high pressure former, including outer drift, interior drift, stock pipe fitting, sealing washer. The outer punch is connected with the inner punch through clearance fit, wherein the annular sliding groove of the outer punch is matched with the sliding block of the inner punch. The sealing ring is connected with the outer punch. The inside annular spout that possess of outer drift for restrict interior drift circumferential direction. The right side of the outer punch is provided with a sealing groove, and a sealing effect can be achieved after the sealing ring is installed. The upper end of the inner punch is provided with a slide block for limiting the circumferential rotation of the inner punch. A semi-annular groove is formed in the left side of the inner punch, and the high-pressure oil switch can be adjusted through circumferential rotation. The right side of the inner punch is provided with a step which is used for matching with the outer punch to fix and punch the blank pipe fitting.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a sectional view taken along line B-B of fig. 1.
Fig. 3 is a schematic structural view of the inner punch in a top view.
Fig. 4 is a sectional view taken along the line a-a of fig. 3.
Fig. 5 is a side view structural diagram of fig. 3.
Wherein: the device comprises an outer punch 1, an inner punch 2, a blank pipe 3, a sealing ring 4, a first pipe cavity 5-1 and a second pipe cavity 5-2.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
An adjustable sealing punch for internal high-pressure forming equipment comprises an outer punch 1, an inner punch 2, a blank pipe 3 and a sealing ring 4; the inner punch is characterized in that a cylindrical groove is formed in the right side of an outer punch (1), an inner punch 2 is installed in the cylindrical groove of the outer punch 1, the outer punch 1 is in clearance fit connection with the inner punch 2, an annular sliding groove is formed in the inner wall of the cylindrical groove of the outer punch 1, a sliding block matched with the annular sliding groove is arranged on the outer side wall of the inner punch 2, and when the inner punch 2 is installed in the cylindrical groove of the outer punch 1, the sliding block of the inner punch 2 is arranged in the annular sliding groove of the outer punch 1.
A sealing ring 4 is arranged on the inner wall of an opening of a cylindrical groove on the outer punch 1, a step is arranged at one end, positioned at the opening of the cylindrical groove, of the inner punch 2 on the outer punch 1, and the depth of the cylindrical groove in the outer punch 1 is larger than the length of the inner punch 2; the blank pipe fitting 3 is sleeved on the step of the inner punch 2 and clamped in the cylindrical groove of the outer punch 1, and the sealing ring 4 is arranged between the blank pipe fitting 3 and the inner wall of the cylindrical groove to play a role in sealing.
A first pipe cavity 5-1 is arranged in the outer punch 1, an oil inlet of the first pipe cavity 5-1 is positioned at the top of the outer punch 1, and an oil outlet is positioned at the right side of the outer punch 1; a second pipe cavity 5-2 is arranged on the inner punch 2, an oil inlet of the second pipe cavity 5-2 is positioned on the left side of the inner punch 2, and an oil outlet is positioned on the right side of the inner punch 2; when the inner punch 2 is mounted in the cylindrical groove of the outer punch 1, the outlet of the first tube cavity 5-1 is communicated with the opening of the second tube cavity 5-2.
The inner wall of an opening of the cylindrical groove on the outer punch 1 is provided with a sealing groove, and the sealing ring 4 is fixedly arranged in the sealing groove. The contact between the cavity wall of the first lumen 5-1 and the cavity wall of the second lumen 5-2 is sealed.
As shown in fig. 1, an adjustable sealing punch for an internal high-pressure forming device comprises an outer punch 1, an inner punch 2, a blank pipe 3 and a sealing ring 4. The annular sliding groove of the outer punch 1 is matched with the sliding block of the inner punch 2. The blank tube 3 is interposed between the inner punch 2 and the outer punch 1 for ease of forming. The sealing ring 4 is connected with the outer punch 1.
The using method comprises the following steps: arrange the die cavity in with stock pipe fitting 3 and compound die, both ends are sheathe in the utility model discloses the drift, the axial drift level at both ends impels, forms sealedly. In the initial stage of forming, the outer punch 1 is rotated to connect the high-pressure oil path, so that the high-pressure oil enters the tube cavities (the first tube cavity and the second tube cavity), and then forming is performed. And in the pressure maintaining stage, the outer punch 1 is rotated, and a high-pressure oil way is cut off, so that the pressure maintaining purpose is achieved.
The method specifically comprises the following steps: when forming, firstly, the blank pipe 3 is sleeved on the inner punch 2 and is matched and fixed with the outer punch 1. And is matched with a corresponding die to realize complete positioning. In the initial forming stage, the outer punch 1 is rotated to enable the first pipe cavity 5-1 and the second pipe cavity 5-2 to be in a communicated state, the whole oil way is closed, high-pressure oil enters from an oil inlet at the upper part of the outer punch 1, exits from an oil outlet at the right end of the inner punch 2 and enters the blank pipe fitting 3, and forming is started. In the pressure maintaining stage, the oil pressure in the blank pipe fitting 3 is required to be stable, the outer punch 1 is rotated, the pipe orifices of the first pipe cavity 5-1 and the second pipe cavity 5-2 are staggered, the oil way is disconnected, and the pressure maintaining is realized.
The technical means disclosed in the scheme of the present invention is not limited to the technical means disclosed in the above embodiments, but also includes a technique formed by combining the above technical features at will.
Claims (3)
1. An adjustable sealing punch for internal high-pressure forming equipment is characterized by comprising an outer punch (1), an inner punch (2), a blank pipe fitting (3) and a sealing ring (4);
a cylindrical groove is formed in the right side of the outer punch (1), the inner punch (2) is installed in the cylindrical groove of the outer punch (1), and the outer punch (1) is in clearance fit connection with the inner punch (2); an annular sliding groove is formed in the inner wall of the cylindrical groove of the outer punch (1), a sliding block matched with the annular sliding groove is arranged on the outer side wall of the inner punch (2), and when the inner punch (2) is installed in the cylindrical groove of the outer punch (1), the sliding block of the inner punch (2) is arranged in the annular sliding groove of the outer punch (1);
a sealing ring (4) is arranged on the inner wall of an opening of the cylindrical groove on the outer punch (1), a step is arranged at one end, positioned at the opening of the cylindrical groove on the outer punch (1), of the inner punch (2), and the depth of the cylindrical groove in the outer punch (1) is larger than the length of the inner punch (2); the blank pipe fitting (3) is sleeved on the step of the inner punch (2) and clamped in the cylindrical groove of the outer punch (1), and the sealing ring (4) is arranged between the blank pipe fitting (3) and the inner wall of the cylindrical groove to play a role in sealing;
a first pipe cavity (5-1) is arranged in the outer punch (1), an oil inlet of the first pipe cavity (5-1) is located at the top of the outer punch (1), and an oil outlet is located on the right side of the outer punch (1); a second pipe cavity (5-2) is formed in the inner punch (2), an oil inlet of the second pipe cavity (5-2) is located on the left side of the inner punch (2), and an oil outlet of the second pipe cavity is located on the right side of the inner punch (2); when the inner punch (2) is arranged in the cylindrical groove of the outer punch (1), the outlet of the first pipe cavity (5-1) is communicated with the opening of the second pipe cavity (5-2).
2. The adjustable sealing punch for the internal high-pressure forming equipment as claimed in claim 1, wherein a sealing groove is formed in the opening inner wall of the cylindrical groove in the outer punch (1), and the sealing ring (4) is installed and fixed in the sealing groove.
3. An adjustable sealing punch for internal high pressure forming equipment according to claim 1, characterized in that the contact between the cavity wall of the first lumen (5-1) and the cavity wall of the second lumen (5-2) is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181895.8U CN210387135U (en) | 2019-07-25 | 2019-07-25 | Adjustable sealing punch for internal high-pressure forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181895.8U CN210387135U (en) | 2019-07-25 | 2019-07-25 | Adjustable sealing punch for internal high-pressure forming equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210387135U true CN210387135U (en) | 2020-04-24 |
Family
ID=70356452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921181895.8U Active CN210387135U (en) | 2019-07-25 | 2019-07-25 | Adjustable sealing punch for internal high-pressure forming equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210387135U (en) |
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2019
- 2019-07-25 CN CN201921181895.8U patent/CN210387135U/en active Active
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