CN204486696U - A kind of gas-liquid pressure-boosting self-pierce riveting picks - Google Patents
A kind of gas-liquid pressure-boosting self-pierce riveting picks Download PDFInfo
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- CN204486696U CN204486696U CN201520064483.1U CN201520064483U CN204486696U CN 204486696 U CN204486696 U CN 204486696U CN 201520064483 U CN201520064483 U CN 201520064483U CN 204486696 U CN204486696 U CN 204486696U
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Abstract
A kind of gas-liquid pressure-boosting self-pierce riveting picks, and comprises gas-liquid pressure-boosting control system, self-piercing riveting mechanism, supporting seat and circuit control system; Gas-liquid pressure-boosting control system comprises pneumohydraulic pressure-cylinder, compressed air pump and all kinds of control valve, self-piercing riveting mechanism comprises pressurized cylinder support, upper punch, low punch, C type framework, mould etc., gas-liquid pressure-boosting control system is connected with self-piercing riveting mechanism by pneumohydraulic pressure-cylinder, and whole device is placed on supporting seat.Of the present utility model have the advantages such as structure is simple, production cost is low, structure space area occupied is little, safe and reliable, and its circuit control system is simple and be easy to realize, easy to operate; Have full-automatic riveting process, riveted joint speed is fast, and efficiency is high, can realize working continuously; By changing drift and mould, also can be used for pipe type rivet, flanged pipe type rivet, oval pipe type rivet, without multiple rivets such as rivets.
Description
Technical field
The utility model belongs to technical field of mechanical manufacturing equipment, relates to a kind of riveting equipment.
Background technology
Along with world energy sources day is becoming tight, in the transport facilitys such as automobile, train, aircraft, people adopt lightweight material to alleviate deadweight more and more.The connection of these lightweight materials and steel and connection to each other, adopt traditional welding technique to also exist always and be difficult to go beyond or be difficult to ensure the problems such as connector capability and performance: some high-strength material is responsive on temperature impact, if employing welding method, in welding process, easily produce hot-spot, cause decrease of fatigue strength; There is overlay coating or nonconducting organic protection layer plate, welding manner should not be adopted to connect; The plate that the welding performances such as aluminium alloy are bad, adopts the mode of spot welding to connect effect undesirable.Traditional riveting process all requires to carry out pre-punched hole to riveted joint material, and then connects with rivet, and such riveting process complexity, appearance poor, efficiency is low and not easily realize automation.
Self-piercing riveting is a kind of mechanical fasteners method not needing prebored hole to connect plate.Self-piercing riveting is compared tool with spot welding with plate Joining Technology such as conventional rivet connection and is had the following advantages: can connect multilayer aluminum, coating sheet metal, reinforced plastics, composite; Do not need prebored hole; Endurance; Carrying out when quality of connection checks can with the naked eye direct vision; , non-thermal radiation, no-spark, no waste mine little to ambient influnence, low energy consumption, low noise; Energy and adhesive and lubricant compatible etc.
Realize self-punching riveting technology, the most important thing is the research that self-pierce riveting picks.Therefore, development structure is simple, equipment is little, without hydraulic fluid leak, rivet force can stepless time adjustment, be beneficial to the manufacturing, there is the new type power of autonomous property right drive self-piercing riveting equipment, significant to the extensive use in Novel lightweight material at home automobile production enterprise, huge market application foreground and economic worth will be produced.
Utility model content
The purpose of this utility model is to provide a kind of gas-liquid pressure-boosting self-pierce riveting and picks, can connect different kinds material, it has low cost, high efficiency, rivet force greatly, the features such as riveted joint speed is fast, and the self-punching riveting technology of polytype rivet can be adopted, reliability is high, environmental friendliness.
The utility model is achieved through the following technical solutions.
The utility model comprises gas-liquid pressure-boosting control system, self-piercing riveting mechanism, circuit control system and supporting seat (10).
Described gas-liquid pressure-boosting control system comprises pneumohydraulic pressure-cylinder (1), compressed air pump (20), switch valve with two-position and five-pass, speed regulation throttle valve, open type air pressure control switch (16), closed type air pressure control switch (17) and tracheae.Compressed air pump (20) is connected with switch valve with two-position and five-pass A (14), switch valve with two-position and five-pass B (15) by tracheae; Switch valve with two-position and five-pass A (14) is connected by tracheae blow vent P3, P4 with closed type air pressure control switch (17), pneumohydraulic pressure-cylinder (1); Switch valve with two-position and five-pass B (15) is connected with speed regulation throttle valve I (18), speed regulation throttle valve II (19) respectively by tracheae, speed regulation throttle valve I (18) is connected by the blow vent P1 of tracheae with open type air pressure control switch (16), pneumohydraulic pressure-cylinder (1), and speed regulation throttle valve II (19) is connected by the blow vent P2 of tracheae with pneumohydraulic pressure-cylinder (1); Pneumohydraulic pressure-cylinder (1) is connected with self-piercing riveting mechanism; Switch valve with two-position and five-pass A (14) and two-position five-way change reversal valve B (15) is contained in supporting seat (10) workbench side by trip bolt.
Described self-piercing riveting mechanism, comprises pressurized cylinder support (2), upper punch (3), low punch (4), blank holder (5), spring pearl detent mechanism (6), pressing spring (8), removable fasteners (9), C type framework (11), mould (12) and threaded ring flange (13).One end of pressurized cylinder support (2) is connected by threaded ring flange (13) with one end of C type framework (11), and mould (12) is connected to the other end of C type framework (11); The lower end of upper punch (3) and the upper end of low punch (4) are threaded connection; Removable fasteners (9) is arranged on low punch (4), and low punch (4) and blank holder (5) are located by connecting by removable fasteners (9); One end of pressing spring (8) is connected with upper punch (3), and its other end is connected with blank holder (5); Spring pearl detent mechanism (6) is arranged in blank holder (5); Self-piercing riveting mechanism is connected on supporting seat (10).
Described spring pearl detent mechanism (6) comprises six little balls and three transparent rubbers, and blank holder (5) is also provided with through-hole groove, and six little balls are contained in through-hole groove, and three transparent rubbers are located at through-hole groove side.
Described pneumohydraulic pressure-cylinder (1) is placed on pressurized cylinder support (2), and is bolted, and the upper end of pneumohydraulic pressure-cylinder (1) piston rod and upper punch (3) is threaded connection.
Described mould, different according to rivet type, can be die, flat-die.
Described supporting seat (10) comprises workbench, angle steel and pull bar, and workbench and four angle steel are bolted, and two pull bars interconnection two angle steel respectively, supporting seat workbench and pressurized cylinder support one end are bolted.
Institute's circuit control system comprises scram button SB1, start-stop button SB2, open type air pressure control switch SP1, closed type air pressure control switch SP2, switch valve with two-position and five-pass B (15) contact coil KM1 and contact coil KM2 with switch valve with two-position and five-pass A (14).The one termination power output circuit of scram button SB1, another termination closed type air pressure control switch SP2, start-stop button SB2 is in parallel with switch valve with two-position and five-pass B (15) normally opened contact KM1, a termination closed type air pressure control switch SP2; Open type air pressure control switch SP1 is in parallel with switch valve with two-position and five-pass A (14) normally opened contact KM2, contact coil KM2 with switch valve with two-position and five-pass A (14) after in parallel to connect, contact coil KM1 after series connection with switch valve with two-position and five-pass B (15) in parallel; A termination power output circuit in parallel, another termination start-stop button SB2.
Described gas-liquid pressure-boosting self-pierce riveting pick can be used for semitubular rivet, pipe type rivet (comprising flanged pipe type rivet, oval pipe type rivet), without multiple rivets such as rivets.
When pipe type rivet (flanged pipe type rivet, oval pipe type rivet) is riveted, mould (12) is changed into flat-die (24), its riveted joint principle is placed in by pipe type rivet by between the upper and lower plate of riveted joint, again the plate accompanying pipe type rivet is placed on flat-die (24), plate aimed at drift by riveted joint place, the central shaft of pipe type rivet must with the central axis of drift; Drift moves down, and upper and lower for pipe type rivet two ends are pressed into upper and lower plate respectively, and rivet upper and lower side is deformed into horn-like and forms mechanical self-latching, thus completes connection.
Without rivet self-piercing riveting, its technological principle first changes low punch (4) and mould (12) for without riveting drift (25) with without riveting die (26); Then being riveted, plate is straight and even to be put into, and the place that rivet is aimed at without riveting die and the axial line without riveting drift as far as possible; Decline without riveting drift and start to contact plate, under the thrust without riveting drift, upper plate and the plate part generation elastic bending deflection without riveting punch. contact; Continue descending without riveting drift, extrude upper and lower plate, until arrive close to dead point without riveting drift, at this moment riveted, exited without riveting drift (25) and get back to original position.
Compared with other self-piercing riveting equipment, the utility model tool has the following advantages and beneficial effect:
1, structure of the present utility model simple, have production cost low, manufacture the advantages such as simple, structure space area occupied is little, safe and reliable.
2, pneumohydraulic pressure-cylinder of the present utility model is without hydraulic fluid leak, produces compressed air provide pneumatic supply by compressed air pump, environmental protection and exert oneself large, and rivet force is stepless adjustable in prescribed limit.
3, the utility model is provided with open type and closed type air pressure control switch, pressure control switch passes through setup pressure value, by the change of atmospheric pressure, the state of pressure control switch is changed, thus the break-make of control circuit, when atmospheric pressure overpressure gauge tap pressure set points, open type air pressure control switch is connected automatically, and closed type air pressure control switch disconnects automatically, makes circuit ON or disconnection.Circuit control system is simple and be easy to realize, easy to operate.
4, the utility model has full-automatic riveting process, and riveted joint speed is fast, and efficiency is high, can realize working continuously.
5, gas-liquid pressure-boosting self-pierce riveting of the present utility model picks, by changing drift and mould, also can be used for pipe type rivet, flanged pipe type rivet, oval pipe type rivet, without multiple rivets such as rivets.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1 is pneumohydraulic pressure-cylinder, 2 is pressurized cylinder support, 3 is upper punch, 4 is low punch, 5 is blank holder, 6 is spring pearl detent mechanism, 7 is rivet, 8 is pressing spring, 9 is removable fasteners, 10 is supporting seat, 11 is C type framework, 12 is mould, 13 is threaded ring flange, 14 is switch valve with two-position and five-pass A, 15 is switch valve with two-position and five-pass B, 16 is open type air pressure control switch, 17 is closed type air pressure control switch, 18 is speed regulation throttle valve I, 19 is speed regulation throttle valve II, 20 is compressed air pump, P1, P2, P3, P4 is respectively the blow vent of pneumohydraulic pressure-cylinder.
Fig. 2 is the place of A shown in Fig. 1 enlarged diagram.
Fig. 3 is Fig. 2 part-structure enlarged diagram.
Fig. 4 is the schematic diagram of self-piercing riveting mechanism of the present utility model.
Fig. 5 is gas-liquid pressure-boosting control system schematic diagram of the present utility model.In figure, 21 is oil hydraulic cylinder, and 22 is spacer, and 23 is booster cavity.
Fig. 6 is circuit control system schematic diagram of the present utility model.In figure, SB1 is scram button, normally off; SB2 is start-stop button, normally open; KM1 is that switch valve with two-position and five-pass B contacts coil and normally opened contact, and KM2 is that switch valve with two-position and five-pass A contacts coil and normally opened contact, and SP1 is open type air pressure control switch, and SP2 is open type air pressure control switch.
Fig. 7 is C type frame structure schematic diagram.
Fig. 8 is upper punch structural representation.
Fig. 9 is low punch structural representation.
Figure 10 is blank holder structural representation.
Figure 11 is pressurized cylinder supporting structure schematic diagram.
Figure 12 is the Working table structure schematic diagram of supporting seat.
Figure 13 is angle steel and the Tiebar structure schematic diagram of supporting seat.
Figure 14 is pipe type rivet (flanged pipe type rivet, oval pipe type rivet) riveting process schematic diagram.(a) pipe type rivet structure chart in figure, (b) pipe type rivet self-piercing riveting process principle figure.
Figure 15 is mould (flat-die) generalized section.
Figure 16 is without rivet self-piercing riveting process principle figure.In figure, 25 is without riveting drift, and 26 is without riveting die.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model, a kind of gas-liquid pressure-boosting self-pierce riveting picks, comprise gas-liquid pressure-boosting control system, self-piercing riveting mechanism, circuit control system and supporting seat, described gas-liquid pressure-boosting control system comprise pneumohydraulic pressure-cylinder 1, compressed air pump 20, switch valve with two-position and five-pass A14, switch valve with two-position and five-pass B15, speed regulation throttle valve 18,19, open type air pressure control switch 16, closed type air pressure control switch 17 and tracheae, described pneumohydraulic pressure-cylinder 1 is connected with self-piercing riveting mechanism; Compressed air pump 20 is connected with switch valve with two-position and five-pass A14, switch valve with two-position and five-pass B15 by tracheae, switch valve with two-position and five-pass A14 is connected by tracheae blow vent P3, P4 with closed type air pressure control switch 17, pneumohydraulic pressure-cylinder 1, switch valve with two-position and five-pass B15 is connected with speed regulation throttle valve 18,19 by tracheae, speed regulation throttle valve 18 is connected by the P1 of tracheae with open type air pressure control switch 16, pneumohydraulic pressure-cylinder 1, and speed regulation throttle valve 19 is connected by the P2 of tracheae with pneumohydraulic pressure-cylinder 1; Described self-piercing riveting mechanism is connected on supporting seat 10.
Fig. 5 is gas-liquid pressure-boosting control system schematic diagram, its operation principle is: before riveted joint starts, start compressed air pump 20, when riveted joint starts, first switch valve with two-position and five-pass B15 is energized commutation, compressed air enters tracheae, by switch valve with two-position and five-pass B15, flow through speed regulation throttle valve 18, arrive open type air pressure control switch 16, the blow vent P1 of pneumohydraulic pressure-cylinder 1, the oil hydraulic cylinder 21 of pneumohydraulic pressure-cylinder 1 is entered by blow vent P1, hydraulic oil in oil hydraulic cylinder 21 is at the spacer 22 of compressed air flows by action to pneumohydraulic pressure-cylinder, promotion lower piston rod moves downward, blank holder 5 is moved down, when blank holder 5 arrives bottom dead centre, plate to be riveted is compressed, the compressed air of spacer 22 is discharged from blow vent P2, this process is also referred to as precompressed stroke.After blank holder compression plate no longer moves down, gas atmosphere in oil hydraulic cylinder 21 continues to increase, when its pressure exceedes the pressure of open type air pressure control switch 16 setting, the normally opened contact of open type air pressure control switch 16 is connected automatically, thus make switch valve with two-position and five-pass A14 energising commutation, compressed air arrives closed type air pressure control switch 17 by switch valve with two-position and five-pass A14, blow vent P3, the booster cavity 23 of pneumohydraulic pressure-cylinder 1 is entered by blow vent P3, thus promotion upper piston rod moves down, spacer 22 is made to produce hydraulic oil, lower piston rod continues to move downward, drive drift moves down, rivet 7 is under the punching press of drift, pierce through the upper strata plate of riveted joint plate, rivet 7 after distortion is formed mechanical interlocked with plate, reach connection object, in riveting process, air through blow vent P2 and P4 flows in air by switch valve with two-position and five-pass A14 and switch valve with two-position and five-pass B15, this process is also referred to as supercharging stroke.When gas liquid pressurization system reaches required rivet force, when pressure exceedes the set pressure of closed type air pressure control switch 17, closed type air pressure control switch 17 normally-closed contact disconnects, switch valve with two-position and five-pass A14 and switch valve with two-position and five-pass B15 is power-off restoration simultaneously, compressed air is through switch valve with two-position and five-pass A14 and switch valve with two-position and five-pass B15, booster cavity 23 and the spacer 22 of pneumohydraulic pressure-cylinder 1 is entered by blow vent P2 and P4, promotion blank holder 5 and drift move up, original position got back to by blank holder 5 and drift, this process is also referred to as return-stroke, self-piercing riveting is from flanging, the process being riveted to return completes, then aforesaid operations process is repeated.
Claims (4)
1. a gas-liquid pressure-boosting self-pierce riveting picks, and it is characterized in that comprising gas-liquid pressure-boosting control system, self-piercing riveting mechanism, supporting seat (10) and circuit control system;
Described gas-liquid pressure-boosting control system comprises pneumohydraulic pressure-cylinder (1), compressed air pump (20), switch valve with two-position and five-pass, speed regulation throttle valve, open type air pressure control switch (16), closed type air pressure control switch (17) and tracheae; Compressed air pump (20) is connected with switch valve with two-position and five-pass A (14), switch valve with two-position and five-pass B (15) by tracheae; Switch valve with two-position and five-pass A (14) is connected by tracheae blow vent P3, P4 with closed type air pressure control switch (17), pneumohydraulic pressure-cylinder (1); Switch valve with two-position and five-pass B (15) is connected with speed regulation throttle valve I (18), speed regulation throttle valve II (19) respectively by tracheae, speed regulation throttle valve I (18) is connected by the blow vent P1 of tracheae with open type air pressure control switch (16), pneumohydraulic pressure-cylinder (1), and speed regulation throttle valve II (19) is connected by the blow vent P2 of tracheae with pneumohydraulic pressure-cylinder (1); Pneumohydraulic pressure-cylinder (1) is connected with self-piercing riveting mechanism;
Described self-piercing riveting mechanism, comprises pressurized cylinder support (2), upper punch (3), low punch (4), blank holder (5), spring pearl detent mechanism (6), pressing spring (8), removable fasteners (9), C type framework (11), mould (12) and threaded ring flange (13); One end of pressurized cylinder support (2) is connected by threaded ring flange (13) with one end of C type framework (11), and mould (12) is connected to the other end of C type framework (11); The lower end of upper punch (3) and the upper end of low punch (4) are threaded connection; Removable fasteners (9) is arranged on low punch (4), and low punch (4) and blank holder (5) are located by connecting by removable fasteners (9); One end of pressing spring (8) is connected with upper punch (3), and its other end is connected with blank holder (5); Spring pearl detent mechanism (6) is arranged in blank holder (5); Self-piercing riveting mechanism is connected on supporting seat (10); Pneumohydraulic pressure-cylinder (1) is placed on pressurized cylinder support (2), and is bolted, and the upper end of pneumohydraulic pressure-cylinder (1) piston rod and upper punch (3) is threaded connection;
Described supporting seat (10) comprises workbench, angle steel and pull bar, and workbench and four angle steel are bolted, two pull bars interconnection two angle steel respectively, and supporting seat workbench and pressurized cylinder support one end are bolted;
Institute's circuit control system comprises scram button SB1, start-stop button SB2, open type air pressure control switch SP1, closed type air pressure control switch SP2, switch valve with two-position and five-pass B (15) contact coil KM1 and contact coil KM2 with switch valve with two-position and five-pass A (14); The one termination power output circuit of scram button SB1, another termination closed type air pressure control switch SP2, start-stop button SB2 is in parallel with switch valve with two-position and five-pass B (15) normally opened contact KM1, a termination closed type air pressure control switch SP2; Open type air pressure control switch SP1 is in parallel with switch valve with two-position and five-pass A (14) normally opened contact KM2, contact coil KM2 with switch valve with two-position and five-pass A (14) after in parallel to connect, contact coil KM1 after series connection with switch valve with two-position and five-pass B (15) in parallel; A termination power output circuit in parallel, another termination start-stop button SB2.
2. gas-liquid pressure-boosting self-pierce riveting according to claim 1 picks, it is characterized in that described spring pearl detent mechanism (6) comprises six little balls and three transparent rubbers, blank holder (5) is also provided with through-hole groove, six little balls are contained in through-hole groove, and three transparent rubbers are located at through-hole groove side.
3. gas-liquid pressure-boosting self-pierce riveting according to claim 1 picks, and it is characterized in that described mould is die or flat-die.
4. gas-liquid pressure-boosting self-pierce riveting according to claim 1 picks, and it is characterized in that for semitubular rivet, pipe type rivet or without rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064483.1U CN204486696U (en) | 2015-01-29 | 2015-01-29 | A kind of gas-liquid pressure-boosting self-pierce riveting picks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064483.1U CN204486696U (en) | 2015-01-29 | 2015-01-29 | A kind of gas-liquid pressure-boosting self-pierce riveting picks |
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| CN204486696U true CN204486696U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520064483.1U Withdrawn - After Issue CN204486696U (en) | 2015-01-29 | 2015-01-29 | A kind of gas-liquid pressure-boosting self-pierce riveting picks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550618A (en) * | 2015-01-29 | 2015-04-29 | 华东交通大学 | Pneumohydraulic self-piercing riveting machine |
| CN107570569A (en) * | 2017-09-20 | 2018-01-12 | 佛山市顺德区美的洗涤电器制造有限公司 | The manufacture method of board component, diel and rear board component afterwards |
| CN108787985A (en) * | 2018-06-15 | 2018-11-13 | 湖北博士隆科技股份有限公司 | A kind of handheld electromagnetic self-piercing riveting device and clinching method |
-
2015
- 2015-01-29 CN CN201520064483.1U patent/CN204486696U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550618A (en) * | 2015-01-29 | 2015-04-29 | 华东交通大学 | Pneumohydraulic self-piercing riveting machine |
| CN107570569A (en) * | 2017-09-20 | 2018-01-12 | 佛山市顺德区美的洗涤电器制造有限公司 | The manufacture method of board component, diel and rear board component afterwards |
| CN107570569B (en) * | 2017-09-20 | 2019-05-07 | 佛山市顺德区美的洗涤电器制造有限公司 | The manufacturing method of back plate component, stamping die and back plate component |
| CN108787985A (en) * | 2018-06-15 | 2018-11-13 | 湖北博士隆科技股份有限公司 | A kind of handheld electromagnetic self-piercing riveting device and clinching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |