CN107952893B - Tensioning riveting mechanism - Google Patents
Tensioning riveting mechanism Download PDFInfo
- Publication number
- CN107952893B CN107952893B CN201810003853.9A CN201810003853A CN107952893B CN 107952893 B CN107952893 B CN 107952893B CN 201810003853 A CN201810003853 A CN 201810003853A CN 107952893 B CN107952893 B CN 107952893B
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- die
- sleeve
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- tension
- core
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 8
- 239000000945 filler Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000013011 mating Effects 0.000 description 5
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002699 waste material Substances 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to a tensioning riveting mechanism, which is used for riveting a stamping part and a round sleeve, and comprises a supporting component, a die sleeve fixedly connected to the supporting component and provided with a tensioning part, a die core sleeved on the inner periphery of the die sleeve in a sliding manner, and a driving device for driving the die core to move, wherein the round sleeve and the stamping part are sleeved on the outer periphery of the tensioning part in sequence, and one end of the die core is provided with a matching part matched with the tensioning part; when the driving device drives the mold core to slide relative to the mold sleeve, the matching part can prop against the expanding part and enable the expanding part to expand outwards, and then the round sleeve and the stamping part deform and rivet with each other. The mechanism is used for riveting aluminum alloy parts, no filler is needed, and the two parts are mutually deformed, extruded and connected by the shape of the die, so that a certain torsional strength is achieved.
Description
Technical Field
The invention relates to a tensioning riveting mechanism.
Background
In the prior art, the aluminum alloy parts are generally connected by adopting a rivet connection or welding mode, so that a large amount of rivets are required to be consumed when the rivets are used for connection, the consumption of materials is quite high, and the production cost of enterprises is increased; when the aluminum alloy parts are connected in a welding mode, the aluminum alloy parts have serious environmental pollution and consume energy, and because of the structural limitation of the aluminum alloy parts, the welding heads of the welding machines are difficult to effectively weld the workpieces, the welding operation is very difficult, and the production efficiency is low. Under the condition that the connection strength requirement of the aluminum alloy piece is not high, the rivet connection or welding is adopted, so that the waste is quite high, and the economical and environment-friendly effects are not realized.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a tensioning riveting mechanism with high automation degree.
In order to solve the technical problems, the invention adopts the following technical scheme:
the tensioning riveting mechanism is used for riveting the stamping part and the round sleeve, and comprises a supporting component, a die sleeve fixedly connected to the supporting component and provided with an expanding part, a die core sleeved on the inner periphery of the die sleeve in a sliding manner, and a driving device for driving the die core to move, wherein the round sleeve and the stamping part are sequentially sleeved on the outer periphery of the expanding part, and one end of the die core is provided with a matching part matched with the expanding part; when the driving device drives the mold core to slide relative to the mold sleeve, the matching part can prop against the expanding part and enable the expanding part to expand outwards, and then the round sleeve and the stamping part deform and rivet with each other.
Preferably, the inner periphery of the expanding portion of the die sleeve is formed with a conical surface, the outer periphery of the matching portion of the die core is formed with a matching surface matched with the conical surface, and when the matching surface is in contact with the conical surface, the expanding portion expands outwards.
Preferably, the expanding part comprises a plurality of expanding plates which are distributed at intervals along the circumferential direction, and the inner side surfaces of the upper parts of the expanding plates are enclosed to form conical surfaces.
Preferably, the number of the expansion plates is six, and the six expansion plates are uniformly distributed at intervals along the circumferential direction; and the whole die sleeve is made of high-elasticity and high-hardness grinding tool steel, so that the expansion plate has certain elasticity while the hardness of the expansion plate for extruding the round sleeve and deforming the round sleeve is ensured, and the expansion plate is convenient to expand outwards.
Preferably, the die sleeve and the die core extend in the vertical direction, and when the driving device drives the die core to move downwards in the vertical direction, the matching part on the die core can prop against the expansion part and enable the expansion part to expand outwards.
Preferably, the drive means are provided below the mould core. The driving device is specifically a hydraulic cylinder.
Preferably, the power output shaft of the driving device is in transmission connection with the lower end part of the mold core through a tension sensor.
Preferably, the support assembly comprises a first support plate, a second support plate, a plurality of support columns connected and supported between the first support plate and the second support plate, and a fixing seat penetrating through the first support plate and used for installing a die sleeve.
Preferably, the tensioning riveting mechanism further comprises a guide mechanism for guiding the mold core to move up and down, the guide mechanism comprises a sliding plate fixedly connected with the tension sensor, sliding sleeves are arranged on two sides of the sliding plate and are in sliding connection with the support column through the sliding sleeves, and when the driving device drives the mold core to move up and down, the sliding plate slides along the support column along with the mold core.
Preferably, the tensioning riveting mechanism further comprises a positioning device for positioning the stamping part, wherein the positioning device comprises a positioning plate positioned above the first supporting plate, a positioning pin arranged on the positioning plate and a fixing column for fixedly supporting the positioning plate above the first supporting plate.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
the tensioning riveting mechanism is used for riveting aluminum alloy parts, does not need filler, and utilizes the shape of a die (namely the shape of an expanding part) to enable the two parts to be mutually deformed, extruded and connected, and achieves certain torsional strength. The tensioning riveting mechanism has the advantages of compact structure, simple and convenient use, production cost saving and workpiece processing efficiency improvement, and avoids the serious environmental pollution caused by welding or rivet riveting in the prior art, and also avoids the difficult operation problem of the welding mode, and the rivet is not required to be consumed (material consumption and high cost) like rivet riveting.
Drawings
FIG. 1 is a schematic perspective view of a stamping of the present invention;
FIG. 2 is a schematic perspective view (from the bottom) of the stamping and circular sleeve of the present invention;
FIG. 3 is a schematic perspective view of a tensioning riveting mechanism of the present invention;
FIG. 4 is a schematic diagram of a front view of a tensioning riveting mechanism of the present invention;
FIG. 5 is a schematic perspective view of a die sleeve according to the present invention;
FIG. 6 is a schematic perspective view of a mold core according to the present invention;
wherein: 1. a die sleeve; 11. a spreading plate; 2. a mold core; 21. a mating portion; 31. a first support plate; 32. a second support plate; 33. a support column; 34. a fixing seat; 41. a slide plate; 42. a sliding sleeve; 51. a positioning plate; 52. a positioning pin; 53. fixing the column; 6. a driving device; 7. a tension sensor; 100. stamping parts; 200. a circular sleeve.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1, 2, 3 and 4, the tensioning riveting mechanism is used for riveting a stamping part 100 with a round sleeve 200, and comprises a support assembly, a die sleeve 1 (see fig. 5) fixedly connected to the support assembly and provided with a tensioning part, a die core 2 (see fig. 6) sleeved on the inner periphery of the die sleeve 1 in a sliding manner, and a driving device for driving the die core 2 to move, wherein the support assembly comprises a first support plate 31, a second support plate 32, a plurality of support columns 33 connected and supported between the first support plate 31 and the second support plate 32, and a fixing seat 34 penetrating through the first support plate 31 and used for installing the die sleeve 1; the periphery of the expansion part is sequentially sleeved with a round sleeve 200 and a stamping part 100, and one end of the mold core 2 is provided with a matching part 21 matched with the expansion part; when the driving device drives the mold core 2 to slide relative to the mold sleeve 1, the matching portion 21 can press the expanding portion and expand the expanding portion outwards, so that the circular sleeve 200 and the stamping part 100 deform and rivet with each other.
Specifically, the inner circumference of the expansion part of the die sleeve 1 is formed with a tapered surface, the outer circumference of the mating part of the die core 2 is formed with a mating surface mating with the tapered surface, and when the mating surface collides with the tapered surface, the expansion part expands outwards. The expansion part comprises six expansion plates 11 which are distributed at intervals along the circumferential direction, and the inner side surfaces of the upper parts of the expansion plates 11 are enclosed to form conical surfaces. The six expansion plates 11 are uniformly distributed at intervals along the circumferential direction, in this example, the length of each expansion plate is greater than 2/3 of the overall length of the die sleeve, and the whole die sleeve 1 is made of high-elasticity and high-hardness grinding tool steel, so that the expansion plates have certain elasticity while the hardness of extruding the round sleeve and deforming the round sleeve is ensured, and the expansion plates are convenient to expand outwards.
In this example, the die sleeve 1 and the die core 2 extend in the vertical direction, and when the driving device drives the die core 2 to move downwards in the vertical direction, the matching part 21 on the die core 2 can press the expansion part and cause the expansion part to expand outwards. The driving device is arranged below the mold core 2, and the driving device 6 is specifically a hydraulic cylinder. The power output shaft of the driving device is in transmission connection with the lower end part of the mold core 2 through a tension sensor 7, and the tension sensor 7 can serve as a transmission part and simultaneously provide tension value information for a tensioning riveting mechanism (particularly a control system of the mechanism) so as to control the driving device (namely a hydraulic cylinder) to act.
Further, the tensioning riveting mechanism further comprises a straightening mechanism for straightening the mold core 2 in the up-and-down motion, the straightening mechanism comprises a sliding plate 41 fixedly connected with the tension sensor 7, sliding sleeves 42 are arranged on two sides of the sliding plate 41 and are in sliding connection with the support columns 33 through the sliding sleeves 42, and when the driving device drives the mold core 2 to move up and down, the sliding plate 41 slides along the support columns 33 along with the mold core 2. The tensioning riveting mechanism further comprises a positioning device for positioning the stamping part 100, wherein the positioning device comprises a positioning plate 51 positioned above the first supporting plate 31, a positioning pin 52 arranged on the positioning plate 51 and a fixing column 53 for fixedly supporting the positioning plate 51 above the first supporting plate 31.
Specifically, in this example, when the tension riveting mechanism is used, the hydraulic cylinder pulls the tension sensor 7 downwards, the tension sensor 7 pulls the die core 2 downwards (the process sliding plate 41 is used for providing guide for movement of the die core), when the matching surface of the matching part at the upper end of the die core 2 is in contact with the conical surface at the inner side of the upper part of the six expansion plates 11 of the die sleeve 1, the six expansion plates 11 are outwards expanded, and further the round sleeve 200 sleeved at the outer side of the six expansion plates 11 and the stamping part 100 are deformed and mutually riveted together, in this example, when the tension sensor 7 arranged by the tension riveting mechanism senses that the tension reaches a preset value, a signal is sent to the control system of the tension riveting mechanism, the control system controls the hydraulic cylinder to stop driving the die core 2 to continuously move downwards, and the hydraulic cylinder returns to the initial position after the die core 2 moves upwards. The production process has high automation degree.
In summary, the tensioning riveting mechanism is used for riveting aluminum alloy parts, no filler is needed, and the two parts are mutually deformed, pressed and connected by utilizing the shape of a die (namely the shape of the opening part), so that certain torsional strength is achieved. The tensioning riveting mechanism has compact and compact structure, is simple and convenient to use, saves the production cost and improves the processing efficiency of workpieces.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a tight riveting mechanism rises, tight riveting mechanism is used for riveting stamping workpiece and circular sleeve mutually, its characterized in that: the tensioning riveting mechanism comprises a supporting component, a die sleeve fixedly connected to the supporting component and provided with an expanding part, a die core sleeved on the inner periphery of the die sleeve in a sliding manner, and a driving device for driving the die core to move, and further comprises a positioning device for positioning the stamping part, wherein the outer periphery of the expanding part is sequentially sleeved with the round sleeve and the stamping part, and one end of the die core is provided with a matching part matched with the expanding part; the expansion part comprises a plurality of expansion plates which are distributed at intervals along the circumferential direction, and the length of each expansion plate is more than 2/3 of the whole length of the die sleeve;
when the driving device drives the mold core to slide relative to the mold sleeve, the matching part can prop against the expanding part and enable the expanding part to expand outwards, and then the round sleeve and the stamping part deform and rivet with each other.
2. The tension riveting mechanism of claim 1 wherein: the inner periphery of the expansion part of the die sleeve is provided with a conical surface, the outer periphery of the matching part of the die core is provided with a matching surface matched with the conical surface, and when the matching surface is in contact with the conical surface, the expansion part expands outwards.
3. The tension riveting mechanism of claim 2 wherein: the upper inner side surfaces of the plurality of expansion plates are enclosed to form the conical surface.
4. A tensioning rivet mechanism according to claim 3, wherein: six expansion plates are arranged.
5. The tension riveting mechanism of claim 1 wherein: the die sleeve and the die core extend in the vertical direction, and when the driving device drives the die core to move downwards in the vertical direction, the matching part on the die core can press the expansion part and enable the expansion part to expand outwards.
6. The tension rivet mechanism as set forth in claim 5, wherein: the driving device is arranged below the mold core.
7. The tension rivet mechanism as recited in claim 6, wherein: the power output shaft of the driving device is in transmission connection with the lower end part of the mold core through a tension sensor.
8. The tension rivet mechanism as recited in claim 7, wherein: the support assembly comprises a first support plate, a second support plate, a plurality of support columns connected with and supported between the first support plate and the second support plate, and a fixing seat penetrating through the first support plate and used for installing the die sleeve.
9. The tension rivet mechanism as recited in claim 8, wherein: the tensioning riveting mechanism further comprises a straightening mechanism used for straightening the mold core during up-and-down movement, the straightening mechanism comprises a sliding plate fixedly connected with the tension sensor, sliding sleeves are arranged on two sides of the sliding plate and are in sliding connection with the support columns through the sliding sleeves, and when the driving device drives the mold core to move up and down, the sliding plate follows the mold core to slide along the support columns.
10. The tension rivet mechanism as recited in claim 8, wherein: the positioning device comprises a positioning plate positioned above the first supporting plate, a positioning pin arranged on the positioning plate and a fixing column fixedly supporting the positioning plate above the first supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810003853.9A CN107952893B (en) | 2018-01-03 | 2018-01-03 | Tensioning riveting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810003853.9A CN107952893B (en) | 2018-01-03 | 2018-01-03 | Tensioning riveting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107952893A CN107952893A (en) | 2018-04-24 |
| CN107952893B true CN107952893B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810003853.9A Active CN107952893B (en) | 2018-01-03 | 2018-01-03 | Tensioning riveting mechanism |
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| Country | Link |
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| CN (1) | CN107952893B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453865B (en) * | 2022-02-18 | 2023-02-03 | 杭州九龙机械制造有限公司 | Press bush frock integrated device |
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|---|---|---|---|---|
| CN202037263U (en) * | 2010-12-30 | 2011-11-16 | 上海德尔福汽车空调系统有限公司 | Novel-structure riveting device for connecting pipes of liquid collecting pipes of condenser of automobile air conditioner |
| CN202451555U (en) * | 2012-02-08 | 2012-09-26 | 无锡安士达五金有限公司 | Rivet body of non-fracture mute rivet |
| CN103317078A (en) * | 2013-07-11 | 2013-09-25 | 株洲时代金属制造有限公司 | Rivet pulling mechanism and rivet pulling method |
| CN103742505A (en) * | 2013-12-11 | 2014-04-23 | 京信通信技术(广州)有限公司 | Pressuring riveting and rising riveting integrated nut and combination and riveting technology thereof |
| CN106194964A (en) * | 2016-08-30 | 2016-12-07 | 无锡安士达五金有限公司 | Hit core riveting nut |
| CN205887852U (en) * | 2016-04-27 | 2017-01-18 | 法拉达汽车散热器（天津）有限公司 | Auto radiator metal parts rises and rivets device |
| WO2017193893A1 (en) * | 2016-05-12 | 2017-11-16 | 中兴通讯股份有限公司 | Riveting device and usage thereof |
| CN206677024U (en) * | 2017-03-03 | 2017-11-28 | 上海明署科技发展有限公司 | A kind of expanding mould |
| CN207723332U (en) * | 2018-01-03 | 2018-08-14 | 苏州托克斯冲压设备有限公司 | A kind of tensioner riveting mechanism |
-
2018
- 2018-01-03 CN CN201810003853.9A patent/CN107952893B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202037263U (en) * | 2010-12-30 | 2011-11-16 | 上海德尔福汽车空调系统有限公司 | Novel-structure riveting device for connecting pipes of liquid collecting pipes of condenser of automobile air conditioner |
| CN202451555U (en) * | 2012-02-08 | 2012-09-26 | 无锡安士达五金有限公司 | Rivet body of non-fracture mute rivet |
| CN103317078A (en) * | 2013-07-11 | 2013-09-25 | 株洲时代金属制造有限公司 | Rivet pulling mechanism and rivet pulling method |
| CN103742505A (en) * | 2013-12-11 | 2014-04-23 | 京信通信技术(广州)有限公司 | Pressuring riveting and rising riveting integrated nut and combination and riveting technology thereof |
| CN205887852U (en) * | 2016-04-27 | 2017-01-18 | 法拉达汽车散热器（天津）有限公司 | Auto radiator metal parts rises and rivets device |
| WO2017193893A1 (en) * | 2016-05-12 | 2017-11-16 | 中兴通讯股份有限公司 | Riveting device and usage thereof |
| CN106194964A (en) * | 2016-08-30 | 2016-12-07 | 无锡安士达五金有限公司 | Hit core riveting nut |
| CN206677024U (en) * | 2017-03-03 | 2017-11-28 | 上海明署科技发展有限公司 | A kind of expanding mould |
| CN207723332U (en) * | 2018-01-03 | 2018-08-14 | 苏州托克斯冲压设备有限公司 | A kind of tensioner riveting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107952893A (en) | 2018-04-24 |
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