CN214488714U - Flexible press riveting die for stamping parts - Google Patents
Flexible press riveting die for stamping parts Download PDFInfo
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- CN214488714U CN214488714U CN202120379069.5U CN202120379069U CN214488714U CN 214488714 U CN214488714 U CN 214488714U CN 202120379069 U CN202120379069 U CN 202120379069U CN 214488714 U CN214488714 U CN 214488714U
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Abstract
The utility model discloses a flexible riveting die for stamping parts, which comprises an upper die and a lower die; the lower die is provided with a pressure riveting female die, and the upper die is provided with a pressure riveting male die matched with the pressure riveting female die; the workpiece to be processed is positioned and fixed in the press riveting concave die, and the upper die moves towards the lower die through the driving of the press machine so as to press and hold the workpiece to be processed; the upper die is integrated with a press riveting punch, and one end, close to the press riveting female die, of the press riveting punch is configured to be a nitrogen cylinder; and the nitrogen cylinder of the pressure riveting punch drives the rivet to enter a pressure riveting hole of the workpiece to be processed through air pressure. The mould of the utility model takes the nitrogen cylinder as power, so that the energy consumption is low, the raw materials and the auxiliary materials are not needed to be consumed for the connection of the rivet pressing, the consumed cost is only about 50 percent of that of spot welding, and the production cost is reduced; the nitrogen cylinder is used as power, and the problem that metal materials such as aluminum, magnesium, titanium and the like cannot be riveted in a pressing mode in the traditional process is solved.
Description
Technical Field
The utility model relates to a stamping die technical field especially relates to a stamping workpiece is with flexible pressure riveting die.
Background
With the further development of the automobile industry, fastening riveting applications for manufacturing industries of various metal plates, pipes and the like are more and more, and the riveting products can be riveted without internal threads and welding nuts.
The pressure riveting is a mode that in the riveting process, under the action of external pressure, a pressure riveting piece (a rivet, a nut and the like) enables a base material to generate plastic deformation, and the base material is extruded into a prefabricated groove of a riveting screw, a nut and a rivet, so that the two parts are reliably connected.
In the prior art, the equipment adopted by the pressure riveting has the following defects:
1. the structure is complex, the cost is too high, and the production and processing cost is increased;
2. the investment is large, and the occupied area is too large;
3. the production efficiency is low, the product quality is unstable, and the product is easy to generate local deformation and crush injury. The riveting is not firm, and the ejection force and the torque are unqualified.
Therefore, in view of the above technical problems, a need exists in the art for a flexible clinching die for stamping parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel structure, practice thrift manufacturing cost, improve riveting quality in order to reduce the flexible pressure riveting mould for stamping workpiece of rejection rate.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a stamping workpiece is with flexible pressure riveting die, this flexible pressure riveting die includes:
an upper die; and
a lower die;
the lower die is provided with a pressure riveting female die, and the upper die is provided with a pressure riveting male die matched with the pressure riveting female die;
the workpiece to be processed is positioned and fixed in the press riveting concave die, and the upper die moves towards the lower die through the driving of the press machine so as to press and hold the workpiece to be processed;
the upper die is integrated with a press riveting punch, and one end, close to the press riveting female die, of the press riveting punch is configured to be a nitrogen cylinder;
and the nitrogen cylinder of the pressure riveting punch drives the rivet to enter a pressure riveting hole of the workpiece to be processed through air pressure.
Further, the upper mold includes:
mounting a template;
an upper die base plate fixed on the lower surface of the upper die plate in an assembling way; and
the upper die mounting plate group is fixedly connected with the upper die base plate;
the nitrogen cylinder is integrated in the upper die mounting plate group and used for conveying nitrogen through a nitrogen pipeline;
the side, away from the upper die base plate, of the upper die mounting plate group is integrated with the pressure riveting male die, and a convex die body is formed on the surface of the pressure riveting male die in a protruding mode;
the pressure riveting punch is embedded in the male die body.
Further, the upper die mounting plate group includes:
the upper die first mounting plate is fixedly connected with the upper die base plate; and
the upper die second mounting plate is fixedly assembled with the upper die first mounting plate through an upper die positioning column;
and a certain space is reserved between the upper die first mounting plate and the upper die second mounting plate, and the nitrogen cylinder is positioned in the space.
Furthermore, an upper template mounting groove is formed in the matched surface of the upper template and the upper template base plate;
the side surface of the upper die base plate is provided with a long circular groove;
the upper die base plate and the upper die plate are assembled and fixed through an upper die plate mounting block partially embedded into the upper die plate mounting groove and the long circular groove.
Further, the upper die guide blocks are symmetrically arranged on two sides of the upper die first mounting plate and the upper die second mounting plate.
Further, the lower mold includes:
a work table;
the lower die base plate is fixedly assembled with the workbench; and
the lower die mounting plate is fixedly connected with the lower die base plate;
the lower die mounting plate is integrated with the pressure riveting female die at one side away from the lower die base plate;
and a groove is formed on the surface of the pressure riveting female die, and a workpiece to be processed is embedded into the groove.
Furthermore, a positioning structure is arranged in the groove;
the workpiece to be processed is positioned and fixed with the pressure riveting female die through the positioning structure;
the positioning structure includes:
the positioning pins are arranged along two ends of the extending direction of the groove;
a positioning hole matched with the positioning pin is formed in the workpiece to be processed;
when the workpiece to be processed is embedded into the groove, the positioning pin extends into the positioning hole.
Further, gaps are prefabricated at the edges of the grooves.
Further, the lower die mounting plate is fixedly connected with the lower die base plate through lengthened support legs;
a certain gap is reserved between the lower die mounting plate and the lower die base plate through the lengthened support leg;
the periphery of the upper surface of the lower die mounting plate is provided with lower die positioning columns matched with the upper die positioning columns;
when the upper die and the lower die are closed, the upper die positioning column is contacted with the lower die positioning column.
Further, lower die guide blocks are symmetrically arranged on the side surface of the lower die mounting plate;
the outer side surface of the lower die guide block is provided with a guide groove matched with the upper die guide block;
and the upper die and the lower die are matched through the guiding of the upper die guide block and the lower die guide block.
In the technical scheme, the utility model provides a pair of mould is riveted with flexible pressure to stamping workpiece has following beneficial effect:
the mould of the utility model takes the nitrogen cylinder as power, so that the energy consumption is low, the raw materials and the auxiliary materials are not needed to be consumed for the connection of the rivet pressing, the consumed cost is only about 50 percent of that of spot welding, and the production cost is reduced; the nitrogen cylinder is used as power, and the problem that metal materials such as aluminum, magnesium, titanium and the like cannot be riveted in a pressing mode in the traditional process is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a first schematic structural view of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of an upper die of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an upper die of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 5 is a third schematic structural view of an upper die of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 6 is a fourth schematic structural view of an upper die of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a lower die of a flexible riveting die for stamping parts according to an embodiment of the present invention;
fig. 8 is a structural enlarged view of a press riveting concave die of a flexible press riveting die for stamping parts, which is provided by the embodiment of the utility model.
Description of reference numerals:
1. an upper die; 2. a lower die;
101. mounting a template; 102. an upper die base plate; 103. an upper die first mounting plate; 104. an upper die second mounting plate; 105. pressing and riveting a male die; 106. a convex mould body; 107. an upper die guide block; 108. mounting a template; 109. a nitrogen cylinder; 110. a nitrogen line; 111. an upper die positioning column;
10101. an upper template mounting groove;
10201. a long circular groove;
10901. a nitrogen spring;
201. a work table; 202. a lower die base plate; 203. a lower die mounting plate; 204. pressing and riveting the female die; 205. lengthening the supporting legs; 206. a groove; 207. positioning pins; 208. a lower die positioning column; 209. a lower die guide block; 210. and (4) a notch.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1-8;
the utility model discloses a stamping workpiece is with flexible pressure riveting die, this flexible pressure riveting die includes:
an upper mold 1; and
a lower mold 2;
the lower die 2 is provided with a pressure riveting female die 204, and the upper die 1 is provided with a pressure riveting male die 105 matched with the pressure riveting female die 204;
the workpiece to be processed is positioned and fixed in the riveting female die 204, and the upper die 1 moves towards the lower die 2 under the driving of the press machine so as to press and hold the workpiece to be processed;
the upper die 1 is integrated with a pressure riveting punch, and one end of the pressure riveting punch, which is close to the pressure riveting female die 204, is configured as a nitrogen cylinder 109;
and a nitrogen cylinder 109 of the pressure riveting punch drives the rivet into a pressure riveting hole of the workpiece to be processed through air pressure.
Specifically, the embodiment discloses a flexible pressure riveting die for stamping parts, which comprises an upper die 1 and a lower die 2, and a pressure riveting female die 204 and a pressure riveting male die 105 are respectively integrated, the die of the embodiment integrates a nitrogen cylinder 109 in the upper die 1, riveting parts such as rivets are pressure riveted into pressure riveting holes of workpieces to be processed through the air pressure of nitrogen, the position of the nitrogen cylinder 109 can be designed and adjusted according to the position of the pressure riveting holes of the workpieces to be processed, the die assembly operation of the upper die 1 and the lower die 2 is completed under the drive of an external press, and the riveting parts such as rivets are pressure riveted into the corresponding pressure riveting holes through the nitrogen cylinder 109 and a pressure riveting punch under the control of a controller.
The device novel structure improves traditional power into nitrogen cylinder 109's atmospheric pressure power, can adapt to the pressure riveting operation requirement of materials such as magnesium, aluminium, titanium.
Preferably, the upper mold 1 of the present embodiment includes:
an upper template 101;
an upper die pad 102 assembled and fixed to the lower surface of the upper die plate 101; and
an upper die mounting plate group fixedly connected with the upper die base plate 102;
the nitrogen cylinder 109 is integrated in the upper die mounting plate group and used for conveying nitrogen through a nitrogen pipeline 110;
a press riveting male die 105 is integrated on one side, away from the upper die base plate 102, of the upper die mounting plate group, and a male die body 106 is formed on the surface of the press riveting male die 105 in a protruding mode;
the clinch punch is embedded in the die body 106.
Wherein, foretell last mould mounting plate group includes:
an upper die first mounting plate 103 fixedly connected with the upper die base plate 102; and
an upper die second mounting plate 104 fixedly assembled with the upper die first mounting plate 103 through an upper die positioning column 111;
a space is reserved between the upper die first mounting plate 103 and the upper die second mounting plate 104, and a nitrogen cylinder 109 is located in the space.
And more specifically:
in the embodiment, an upper template mounting groove 10101 is formed in one surface of the upper template 101 matched with the upper template base plate 102;
the side surface of the upper die cushion plate 102 is provided with an oblong slot 10201;
the upper die plate 102 is assembled and fixed to the upper die plate 101 by the upper die plate mounting block 108 partially fitted into the upper die plate mounting groove 10101 and the elongated circular groove 10201.
The structure of the upper die 1 is specifically described in this embodiment, wherein the clinching punch 105 is integrated on the upper die plate 101 through the upper die mounting plate group and the upper die pad 102, in order to integrate necessary internal functional components, such as the nitrogen cylinder 109, and other functional components, the upper die mounting plate group of this embodiment is divided into the upper die first mounting plate 103 and the upper die second mounting plate 104, a space is reserved between the two corresponding positions, the space needs to be able to integrate the nitrogen cylinder 109 inside, and the nitrogen spring 10901 at the main punching position needs to be directly opposite to the clinching hole of the workpiece to be processed, so in the actual design, the positions of the nitrogen cylinder 109 and the nitrogen spring 10901 can be properly adjusted according to the position of the workpiece to be clinched.
In addition, in order to provide a certain guiding function when the upper mold 1 and the lower mold 2 are clamped, upper mold guide blocks 107 are symmetrically arranged on both sides of the upper mold first mounting plate 103 and the upper mold second mounting plate 104 of the present embodiment.
Preferably, the lower mold 2 in this embodiment includes:
a work table 201;
a lower die backing plate 202 assembled and fixed with the workbench 201; and
a lower die mounting plate 203 fixedly connected to the lower die backing plate 202;
a press riveting female die 204 is integrated on one side of the lower die mounting plate 203 far away from the lower die base plate 202;
the surface of the riveting die 204 is provided with a groove 206, and a workpiece to be processed is embedded into the groove 206.
Wherein, the groove 206 has a positioning structure therein;
the workpiece to be processed is positioned and fixed with the pressure riveting female die 204 through a positioning structure;
the positioning structure includes:
positioning pins 207 arranged along both ends in the extending direction of the groove 206;
a positioning hole matched with the positioning pin 207 is formed in the workpiece to be processed;
when a workpiece to be machined is inserted into the groove 206, the positioning pin 207 extends into the positioning hole.
The structure of the lower die 2 is described in detail, the lower die mainly carries a workpiece to be processed, and positions and fixes the workpiece to be processed by using the groove 206 of the riveting female die 204 thereon, so as to ensure that the workpiece to be processed can be acted on together with the riveting male die 105 above the lower die when the upper die 1 moves downwards, and in order to further position and fix the workpiece, the positioning pin 207 is integrated in the groove 206 of the embodiment, and the positioning pin 207 positions and fixes both ends of the workpiece in the length direction respectively, and can complete positioning and fixing of the workpiece together with the groove 206, thereby providing convenience for subsequent riveting operation.
In addition, in order to facilitate the removal of the machined workpiece, the edge of the groove 206 of the present embodiment is provided with a notch 210.
Preferably, in this embodiment, the lower mold mounting plate 203 is fixedly connected to the lower mold backing plate 202 through the lengthened support leg 205;
a certain gap is reserved between the lower die mounting plate 203 and the lower die base plate 202 through the lengthened support leg 205;
the periphery of the upper surface of the lower die mounting plate 203 is provided with lower die positioning columns 208 matched with the upper die positioning columns 111;
when the upper mold 1 and the lower mold 2 are closed, the upper mold positioning posts 111 contact the lower mold positioning posts 208.
Wherein, the above description has been introduced that the upper die 1 has the upper die guide block 107, and in order to play a certain guiding role when the die is closed, the lower die 2 of the present embodiment also has the guide block, that is: the side surface of the lower die mounting plate 203 is symmetrically provided with lower die guide blocks 209;
the outer side surface of the lower die guide block 209 is provided with a guide groove matched with the upper die guide block 107;
the upper mold 1 and the lower mold 2 are clamped by the guide of the upper mold guide 107 and the lower mold guide 209.
The traditional pressure source of the pressure riveting device mainly comes from a press machine, the pressure riveting strength is influenced by the thickness and the material of the plate, but the device disclosed by the embodiment only utilizes the press machine as a mechanism for driving the upper die 1 to move, the power source for pressure riveting comes from the nitrogen cylinder 109, and the pressure riveting pieces such as rivets are impacted by the pressure of nitrogen, so that the device can effectively aim at the thickness and the material of different plates and is not influenced by the change of the thickness and the material of the plates.
When the device works, a workpiece to be processed is placed in the groove 206 of the lower die 2, and the positioning mode is that two positioning pins 207 are used for positioning and fixing; subsequently, the rivet is placed in the riveting position; the upper die 1 moves downwards under the driving of the press slide, the riveting male die 105 firstly presses the workpiece to fix the workpiece, and then the riveting punch impacts the rivet under the action of the nitrogen cylinder 109 to press the rivet into the riveting hole of the workpiece. And finally, finishing one-time riveting operation when the guide blocks on the two sides are lowered to the lower limit position. The system drives the upper die 1 to move reversely, and the next riveting operation is continued.
According to practical application, the riveting die is long in service life, the average use time can reach 10-30 ten thousand, and the cost is reduced by about 30% compared with the traditional process because raw materials and auxiliary materials are not consumed.
In the technical scheme, the utility model provides a pair of mould is riveted with flexible pressure to stamping workpiece has following beneficial effect:
the mould of the utility model takes the nitrogen cylinder 109 as power, so that the energy consumption is low, the raw materials and auxiliary materials are not needed to be consumed for the rivet pressing connection, the consumed cost is only about 50 percent of that of spot welding, and the production cost is reduced; the nitrogen cylinder 109 is used as power, and the problem that metal materials such as aluminum, magnesium and titanium cannot be riveted in the traditional process is solved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a mould is riveted with flexible pressure to stamping workpiece which characterized in that, this mould is riveted to flexible pressure includes:
an upper mold (1); and
a lower mold (2);
the lower die (2) is provided with a pressure riveting female die (204), and the upper die (1) is provided with a pressure riveting male die (105) matched with the pressure riveting female die (204);
the workpiece to be machined is positioned and fixed in the riveting female die (204), and the upper die (1) moves towards the lower die (2) through the driving of a press machine so as to press and hold the workpiece to be machined;
the upper die (1) is integrated with a pressure riveting punch, and one end, close to the pressure riveting female die (204), of the pressure riveting punch is configured to be a nitrogen cylinder (109);
and a nitrogen cylinder (109) of the pressure riveting punch drives the rivet into a pressure riveting hole of the workpiece to be processed through air pressure.
2. A flexible clinch die for stampings in accordance with claim 1, characterised in that the upper die (1) comprises:
an upper template (101);
an upper die backing plate (102) assembled and fixed on the lower surface of the upper die plate (101); and
the upper die mounting plate group is fixedly connected with the upper die base plate (102);
the nitrogen cylinder (109) is integrated in the upper die mounting plate group and used for conveying nitrogen through a nitrogen pipeline (110);
the side, away from the upper die base plate (102), of the upper die mounting plate group is integrated with the press riveting male die (105), and a male die body (106) is formed on the surface of the press riveting male die (105) in a protruding mode;
the press riveting punch is embedded in the convex die body (106).
3. The flexible clinch die for stamping parts according to claim 2, wherein the upper die mounting plate group includes:
an upper die first mounting plate (103) fixedly connected with the upper die base plate (102); and
an upper die second mounting plate (104) fixedly assembled with the upper die first mounting plate (103) through an upper die positioning column (111);
a certain space is reserved between the upper die first mounting plate (103) and the upper die second mounting plate (104), and the nitrogen cylinder (109) is located in the space.
4. The flexible riveting die for stamping parts according to claim 2, wherein an upper die plate mounting groove (10101) is formed in one matching surface of the upper die plate (101) and the upper die backing plate (102);
the side surface of the upper die cushion plate (102) is provided with a long circular groove (10201);
the upper die base plate (102) and the upper die plate (101) are assembled and fixed through an upper die plate mounting block (108) which is partially embedded into the upper die plate mounting groove (10101) and the long circular groove (10201).
5. The flexible riveting die for stamping parts according to claim 3, wherein the upper die guide blocks (107) are symmetrically arranged on two sides of the upper die first mounting plate (103) and the upper die second mounting plate (104).
6. A flexible clinch die for stampings in accordance with claim 5, characterised in that the lower die (2) comprises:
a table (201);
a lower die base plate (202) assembled and fixed with the workbench (201); and
a lower die mounting plate (203) fixedly connected to the lower die backing plate (202);
the side, away from the lower die base plate (202), of the lower die mounting plate (203) is integrated with the press riveting female die (204);
a groove (206) is formed in the surface of the press riveting female die (204), and a workpiece to be processed is embedded into the groove (206).
7. A flexible clinch die for stampings in accordance with claim 6, characterised in that the recess (206) has locating formations therein;
the workpiece to be processed is positioned and fixed with the pressure riveting female die (204) through the positioning structure;
the positioning structure includes:
positioning pins (207) arranged along both ends of the extending direction of the groove (206);
a positioning hole matched with the positioning pin (207) is formed in the workpiece to be processed;
when a workpiece to be processed is embedded into the groove (206), the positioning pin (207) extends into the positioning hole.
8. Flexible clinch die for stampings in accordance with claim 6, characterised in that the edges of the recess (206) are provided with notches (210).
9. The flexible riveting die for stamping parts according to claim 6, wherein the lower die mounting plate (203) is fixedly connected with the lower die backing plate (202) through an elongated leg (205);
a certain gap is reserved between the lower die mounting plate (203) and the lower die base plate (202) through the lengthened support leg (205);
the periphery of the upper surface of the lower die mounting plate (203) is provided with lower die positioning columns (208) matched with the upper die positioning columns (111);
when the upper die (1) and the lower die (2) are closed, the upper die positioning column (111) is in contact with the lower die positioning column (208).
10. The flexible riveting die for stamping parts according to claim 6, wherein the lower die guide blocks (209) are symmetrically arranged on the side surface of the lower die mounting plate (203);
the outer side surface of the lower die guide block (209) is provided with a guide groove matched with the upper die guide block (107);
and the upper die (1) and the lower die (2) are matched through the guiding of the upper die guide block (107) and the lower die guide block (209).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120379069.5U CN214488714U (en) | 2021-02-19 | 2021-02-19 | Flexible press riveting die for stamping parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120379069.5U CN214488714U (en) | 2021-02-19 | 2021-02-19 | Flexible press riveting die for stamping parts |
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| CN214488714U true CN214488714U (en) | 2021-10-26 |
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| CN202120379069.5U Active CN214488714U (en) | 2021-02-19 | 2021-02-19 | Flexible press riveting die for stamping parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997038A (en) * | 2021-11-12 | 2022-02-01 | 苏州施米特机械有限公司 | Self-piercing riveting die and self-piercing riveting equipment |
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2021
- 2021-02-19 CN CN202120379069.5U patent/CN214488714U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997038A (en) * | 2021-11-12 | 2022-02-01 | 苏州施米特机械有限公司 | Self-piercing riveting die and self-piercing riveting equipment |
| CN113997038B (en) * | 2021-11-12 | 2023-04-07 | 苏州施米特机械有限公司 | Self-piercing riveting die and self-piercing riveting equipment |
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