CN108527765B - Real-time pressure regulating injecting glue compound glue riveting device - Google Patents
Real-time pressure regulating injecting glue compound glue riveting device Download PDFInfo
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- CN108527765B CN108527765B CN201810302284.8A CN201810302284A CN108527765B CN 108527765 B CN108527765 B CN 108527765B CN 201810302284 A CN201810302284 A CN 201810302284A CN 108527765 B CN108527765 B CN 108527765B
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- holder
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- 239000003292 glue Substances 0.000 title claims abstract description 99
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 22
- 150000001875 compounds Chemical class 0.000 title description 2
- 238000002347 injection Methods 0.000 claims abstract description 88
- 239000007924 injection Substances 0.000 claims abstract description 88
- 239000002131 composite material Substances 0.000 claims abstract description 69
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 46
- 230000001070 adhesive effect Effects 0.000 abstract description 46
- 239000012790 adhesive layer Substances 0.000 abstract description 9
- 239000010410 layer Substances 0.000 abstract description 8
- 239000004033 plastic Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 16
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 238000004026 adhesive bonding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C45/14508—Joining juxtaposed sheet-like articles, e.g. for making trim panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
- B29C45/535—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston using two or more cooperating injection rams, e.g. coaxially or alternately operating rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C2045/14532—Joining articles or parts of a single article injecting between two sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to a real-time pressure-regulating glue injection composite glue riveting device, belongs to the technical field of glue riveting composite connection, and solves the technical problems that glue overflow, degumming, less glue, brittle failure of a glue layer and glue joint failure are easy to occur in the prior art, and a reliable high-quality glue riveting joint cannot be formed; the invention comprises an upper die holder, a lower die holder, a blank holder, a composite male die, a female die, bolts, four guide sleeves and four guide posts; the invention also comprises an injecting glue pressure regulating system, four heating coils and a control box; the invention solves the problem of damage to the adhesive layer during riveting, effectively prevents the problems of adhesive overflow, adhesive failure and adhesive failure, and improves the strength of the adhesive-riveting composite connection joint.
Description
Technical Field
The invention belongs to the technical field of glue riveting composite connection, and particularly relates to a real-time pressure-regulating glue injection composite glue riveting device.
Background
With the development of the automobile industry, higher requirements on oil consumption reduction, energy conservation and emission reduction are put forward, and the lightweight design of a vehicle body structure is increasingly paid attention to. By introducing light materials such as aluminum alloy or magnesium alloy into an all-steel vehicle body, realization of a "mixed material vehicle body structure" has become a development direction for weight reduction of the vehicle body. How to ensure the connection reliability of parts made of different materials is a current problem to be solved.
At present, the problem of connection between dissimilar materials is mainly expressed in the following three aspects: because of the difference of crystal structure and physical property among materials, the traditional resistance spot welding mode is difficult to form an effective nugget, and hard and brittle intermetallic compounds are easy to form on an interface; because of potential difference between materials, a primary cell effect is formed when the materials are in close contact, and electrochemical corrosion is caused to a base material; the thermal expansion characteristic difference of different materials causes inconsistent thermal deformation of the base metal to generate residual stress and local warping, and the joint performance is seriously affected by the three aspects.
Common connection modes between dissimilar materials comprise riveting, gluing and glue riveting composite connection, wherein the riveting comprises rivet riveting and rivetless riveting; the rivet is used for riveting, namely, the rivet pierces through the plates to realize connection, and the static strength and the fatigue strength of the joint are good; the self-locking joint is formed between the rivet-free riveting plates to realize connection, the static strength and the fatigue strength of the joint are higher, the problem of hard and brittle interface generated during connection of dissimilar materials can be effectively avoided, and the self-locking joint is one of the most widely applied mechanical connection technologies in the existing automobile body manufacturing.
The glue joint is a process that monomer molecules and curing agents are subjected to crosslinking curing reaction to finally form a three-dimensional net shape, so that direct contact of dissimilar materials can be avoided, the glue joint is one of effective modes for realizing connection of the dissimilar materials, and the glue joint has higher tensile shear strength and has advantages in improving the overall fatigue performance and energy absorption of a vehicle body.
The glue-riveting composite connection technology is to rivet the glued plates. The joint application of gluing and riveting can exert respective advantages, the glued and riveted composite connection separates the plates through the glue layer as an insulating material, has good corrosion resistance and connection fixing effects, and can prevent the abrupt failure of the gluing and play a role in failure buffering. Compared with simple gluing or riveting, the glue-riveting composite connection greatly enhances the rigidity and strength of the joint, and is an ideal means for connecting dissimilar materials.
In the prior art, when glue riveting composite connection is carried out, the common mode is to rivet after gluing the plates, but because the mobility of the adhesive is strong, the adhesive solution is easy to overflow from the plates under the action of the stamping force, so that no adhesive layer or few adhesive layers are arranged at the position of the rivet joint, the adhesive joint is invalid, and a reliable high-quality glue riveting joint cannot be formed; another common glue riveting composite connection mode is that the adhesive is partially cured or completely cured and then is riveted, the glue layer with higher curing degree has higher brittleness, the problem of brittle fracture of the glue layer is easy to occur when the glue layer is subjected to stamping force during riveting, and the problems of glue overflow, glue separation and glue lack occur when the glue layer is subjected to riveting impact force when the curing degree is lower.
Disclosure of Invention
The invention aims to provide a real-time pressure-regulating glue-injection composite glue riveting device, which solves the technical problems that glue overflow, degumming, less glue, brittle failure of a glue layer, and glue joint failure easily occur in the prior art, and a reliable high-quality glue riveting joint cannot be formed.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention discloses a real-time pressure-regulating glue injection composite glue riveting device which comprises an upper die holder, a lower die holder, a blank holder, a composite male die, a female die, four guide sleeves and four guide posts; four guide sleeves with the same structure are distributed on four corners of an upper die holder, the upper die holder is welded with each guide sleeve, each guide sleeve corresponds to one guide pillar, the guide sleeves move up and down along the guide pillar, and the lower die holder is in transition fit connection with a female die through a clamping groove; an annular cavity is arranged at the center of the female die, namely a female die cavity;
the invention also comprises an injecting glue pressure regulating system, four heating coils and a control box;
the glue injection pressure regulating system comprises three cylinders with the same structure, two glue injection pipes and two pressure sensors; the three cylinders with the same structure are respectively a left cylinder, a middle cylinder and a right cylinder, the two rubber injection pipes are a left rubber injection pipe and a right rubber injection pipe, a piston rod of the left cylinder is in threaded connection with the upper end of the left rubber injection pipe, a piston rod of the right cylinder is in threaded connection with the upper end of the right rubber injection pipe, a pressure sensor is arranged at a pipe orifice of the left rubber injection pipe, a pressure sensor is arranged at a pipe orifice of the right rubber injection pipe, an upper die holder is fixedly connected with each cylinder, a piston rod of the middle cylinder is in threaded connection with a composite punch, the upper die holder is connected with a blank holder through a bolt, the composite punch moves up and down in a central hole of the blank holder, and four heating coils are uniformly distributed on the circumference of the bottom of the composite punch;
the control box is provided with a left cylinder switch, a middle cylinder switch, a right cylinder switch, a main switch, a heating switch and a pressure sensor display screen respectively, wherein the left cylinder switch is used for controlling the starting of a left cylinder, the middle cylinder switch is used for controlling the starting of the middle cylinder, the right cylinder switch is used for controlling the starting of a right cylinder, the heating switch is used for controlling a heating coil to heat, the pressure sensor display screen is used for monitoring the pressure values of a left rubber injection pipe orifice and a right rubber injection pipe orifice in real time, and the control box is arranged in a cavity in the upper die holder.
The upper die holder is fixedly connected with each cylinder specifically: the bottom surface of upper die base evenly is provided with three round holes that the structure is the same, and every round hole corresponds an cylinder, the top and the round hole fixed connection of cylinder.
The die holder and the female die are excessively matched specifically as follows: the left side and the right side of the upper part of the lower die seat are respectively provided with a lug, two identical lugs are clamped into two identical grooves at the corresponding positions of the lower part of the female die, and the lugs are in transition fit connection with the grooves.
The composite male die is a solid frustum-shaped structural member and is made of high-hardness die steel, four cylindrical pore canals with the same structure are formed in the bottom ring surface of the composite male die from outside to inside, a heating coil is arranged in each pore canal, the axis of each cylindrical pore canal is intersected with the central axis of the composite male die, the cylindrical pore canals are not communicated, and insulating materials are coated on the surfaces of the cylindrical pore canals and the surface of the composite male die.
The blank holder is of a hollow cylindrical structure, the surface of the blank holder is coated with insulating materials and is made of high-hardness die steel, and the blank holder and the female die are arranged oppositely.
The female die is made of high-hardness die steel, insulating materials are coated on the surfaces of the female die, the female die is a disc-shaped structural member, an annular cavity is arranged in the center of the female die, namely a female die cavity, a conical boss is arranged in the center of the annular cavity, and the rotation axis of the annular cavity is collinear with the rotation axis of the conical boss.
The working principle of the invention is as follows: the invention needs to adhere with the upper plate or the lower plate by means of the plastic ring, the plastic ring is positioned at the right center of the upper plate or the lower plate which is adhered with the plastic ring, the plastic ring divides the adhesive coating area into a plastic ring inner area and a plastic ring outer area, after the adhesive coating of the ring outer area of the plastic ring is finished, the device is used for injecting adhesive into the plastic ring inner area, two symmetrical through holes are arranged at the non-riveting position of the upper plate in advance, the projections of the two symmetrical through holes on the lower plate are contained in the plastic ring inner area, the projections are used for removing air and adhesive in a cavity between the upper plate and the lower plate, ensuring the smooth continuous injection of the adhesive, ensuring the thickness and the continuity of the adhesive layer, starting a left cylinder or a right cylinder of a pressure regulating and injecting system, pushing the left injecting pipe or the right injecting pipe into the adhesive into the plastic ring inner area, and when riveting is carried out, ensuring that the stepped surfaces of the left injecting pipe and the right injecting pipe respectively completely cover the two through holes on the upper plate and press the upper plate, preventing the adhesive from overflowing, and monitoring by a force sensor, and simultaneously regulating the downward pressure of the left injecting pipe and the adhesive in the ring in real time, and ensuring the dynamic deformation of the adhesive in the ring and the pressure when the pressure and the adhesive layer is in the ring is in balance; after riveting is finished, the adhesive in the plastic ring is heated by a heating coil in the composite male die, so that the curing of the adhesive is accelerated, the production time is shortened, and the production efficiency is improved.
The beneficial technical effects of the invention are as follows:
1. according to the invention, the left air cylinder or the right air cylinder in the pressure-regulating glue injection system is used for pushing the left glue injection pipe or the right glue injection pipe to inject the adhesive into the inner ring area of the plastic ring, when the riveting is carried out, the pressure of the adhesive at the glue injection hole is monitored in real time through the pressure sensor, the lower pressure of the adhesive is regulated and controlled in real time, the lower pressure of the adhesive when the glue injection hole is used for injecting the adhesive into the inner ring glue injection area and the combined pressure of the adhesive, such as impact force and force generated by plate deformation, during the riveting, are ensured to be in dynamic balance, the adhesive is prevented from overflowing from the glue injection hole of the upper plate, the thickness of the adhesive and the thickness value of the adhesive are ensured, the problem of damage to the adhesive layer during the riveting is solved, the problems of glue overflow, degumming and glue breaking are effectively prevented, and the strength of the adhesive riveting composite connecting joint is improved;
2. after the riveting is finished, the adhesive in the riveting area is heated by a heating coil in the composite male die, so that the curing of the adhesive is accelerated, the production time is shortened, and the production efficiency is improved;
3. the glue injection pressure regulating system in the device is suitable for both a rivetless riveting device and a rivetless riveting device, and has strong applicability;
4. after the glue injection pressure regulating system of the device is used for completing the gluing of the upper plate and the lower plate, the riveting is completed through the interaction of the composite male die and the female die cavity, and the curing of the adhesive is accelerated through the heating coil in the composite male die, so that the glue riveting integration is realized, the procedures are reduced, the time is saved, and the production rate is improved.
Drawings
FIG. 1 is a cross-sectional view of a real-time pressure-regulating glue injection composite glue rivet device of the invention;
FIG. 2 is a cross-sectional view of an upper die holder in the real-time pressure-regulating glue injection composite glue riveting device of the invention;
FIG. 3 is a top view of an upper die holder in the real-time pressure-regulating glue injection composite glue riveting device of the invention;
FIG. 4 is a cross-sectional view of a composite punch in a real-time pressure-regulating glue injection composite glue rivet device of the invention;
FIG. 5 is a top view of a composite punch in a real-time pressure-regulating glue injection composite glue rivet device according to the present invention;
FIG. 6 is a cross-sectional view of a blank holder in a real-time pressure-regulating glue injection composite glue rivet device according to the invention;
FIG. 7 is a top view of a blank holder in a real-time pressure-regulating glue injection composite glue rivet device according to the present invention;
FIG. 8 is a cross-sectional view of a lower die holder in the real-time pressure-regulating glue injection composite glue rivet device of the invention;
FIG. 9 is a top view of a lower die holder in a real-time pressure-regulating glue injection composite glue rivet device according to the invention;
FIG. 10 is a cross-sectional view of a female die in a real-time pressure-regulating glue injection composite glue rivet device of the invention;
FIG. 11 is a top view of a female die in a real-time pressure-regulating glue injection composite glue rivet device of the invention;
FIG. 12 is a schematic diagram illustrating the partitioning of glue spreading areas for two pairs of boards according to an embodiment of the present invention;
FIG. 13 is a schematic view showing the positioning of an adhesive plate in a device before riveting according to the second embodiment of the present invention;
FIG. 14 is a schematic illustration of an injection pressure regulating system injecting adhesive into an annular cavity prior to riveting in accordance with a second embodiment of the present invention;
FIG. 15 is a schematic diagram of a glue injection hole closed by a glue injection pressure regulating system prior to riveting in accordance with a second embodiment of the present invention;
FIG. 16 is a schematic diagram illustrating deformation of a plate during riveting according to the second embodiment of the present invention;
FIG. 17 is a schematic diagram showing a pressure maintaining stage after riveting is completed according to the second embodiment of the present invention;
wherein, 1, an upper die holder, 2, a bolt, 3, a right cylinder, 4, a right cylinder piston rod, 5, a right rubber injection tube, 6, a blank holder, 7, a composite male die, 8, a female die, 9 and a middle cylinder, 10, a middle piston rod, 11, a left cylinder, 12, a left cylinder piston rod, 13, a left rubber injection pipe, 14, a guide sleeve, 15, a guide pillar, 16, a pressure sensor, 17, a heating coil, 18 and a lower die holder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1-11, the real-time pressure-regulating glue injection composite glue riveting device comprises an upper die holder 1, a lower die holder 18, a blank holder 6, a composite male die 7, a female die 8, bolts 2, four guide sleeves 14 and four guide posts 15; four guide sleeves 14 with the same structure are distributed on four corners of the upper die holder 1, the guide sleeves 14 are welded with the upper die holder 1, each guide sleeve 14 is welded with each guide sleeve 14, each guide sleeve 14 corresponds to one guide post 15, the guide sleeves 14 move up and down along the guide posts 15, and the lower die holder 18 is in transition fit connection with the female die 8; an annular cavity is arranged at the center of the female die 8, namely a female die cavity;
the invention also comprises an injecting glue pressure regulating system, four heating coils and a control box;
the glue injection pressure regulating system comprises three cylinders with the same structure, two glue injection pipes and two pressure sensors; the three cylinders with the same structure are a left cylinder 11, a middle cylinder 9 and a right cylinder 3 respectively, two rubber injection pipes are a left rubber injection pipe 13 and a right rubber injection pipe 5, a left cylinder piston rod 12 is in threaded connection with the upper end of the left rubber injection pipe 13, a right cylinder piston rod 4 is in threaded connection with the upper end of the right rubber injection pipe 5, a pressure sensor is arranged at the pipe orifice of the left rubber injection pipe 13, a pressure sensor is arranged at the pipe orifice of the right rubber injection pipe 5, an upper die holder 1 is fixedly connected with each cylinder respectively, a piston rod of the middle cylinder 9 is in threaded connection with a composite punch 7, the upper die holder 1 is connected with a blank holder 6 through a bolt 2, the composite punch 7 moves up and down in a central hole of the blank holder 6, and four heating coils 17 are uniformly distributed on the circumference of the bottom of the composite punch 7;
the control box is provided with a left cylinder switch, a middle cylinder switch, a right cylinder switch, a main switch, a heating switch and a pressure sensor display screen respectively, wherein the left cylinder switch is used for controlling the starting of the left cylinder 11, the middle cylinder switch is used for controlling the starting of the middle cylinder 9, the right cylinder switch is used for controlling the starting of the right cylinder 3, the heating switch is used for controlling the heating coil 17 to heat, the pressure sensor display screen is used for monitoring the pressure values of the pipe orifice of the left injection pipe 13 and the pipe orifice of the right injection pipe 5 in real time, and the control box is arranged in the cavity in the upper die holder 1.
The upper die holder 1 is fixedly connected with each cylinder specifically as follows: the bottom surface of upper die base 1 evenly is provided with three round holes that the structure is the same, and every round hole corresponds an cylinder, the top and the round hole fixed connection of cylinder.
The excessive matching of the lower die holder 18 and the female die 8 is specifically as follows: the left and right sides of the upper part of the lower die holder 18 are respectively provided with a lug, two identical lugs are clamped into two identical grooves at the corresponding positions of the lower part of the female die 8, and the lugs are in transition fit connection with the grooves.
The composite male die 7 is a solid frustum-shaped structural member and is made of high-hardness die steel, four cylindrical pore canals with the same structure are formed in the bottom ring surface of the composite male die 7 from outside to inside, a heating coil is arranged in each pore canal, the axis of each cylindrical pore canal intersects with the central axis of the composite male die 7, the cylindrical pore canals are not communicated, and insulating materials are coated on the surfaces of the cylindrical pore canals and the surface of the composite male die.
The blank holder 6 is of a hollow cylindrical structure, the surface of the blank holder is coated with insulating materials, the blank holder is made of high-hardness die steel, and the blank holder is arranged opposite to the female die 8.
The female die 8 is made of high-hardness die steel, insulating materials are coated on the surfaces of the female die 8, the female die is a disc-shaped structural member, an annular cavity is arranged in the center of the female die, namely a female die cavity, a conical boss is arranged in the center of the annular cavity, and the rotation axis of the annular cavity is collinear with the rotation axis of the conical boss.
Embodiment two:
referring to fig. 12-17, the device is utilized to carry out glue riveting composite connection between different materials, and an aluminum plate and a steel plate with the specification of 120mmX, 120mmX and 2mm are adopted as different plates for glue riveting connection, and the specific operation process is as follows:
1. surface treatment such as impurity removal is respectively carried out on the aluminum plate and the steel plate;
2. symmetrically forming two R5 through holes on the aluminum plate, ensuring that the projection of the two through holes on the aluminum plate is contained in a plastic ring, uniformly coating a layer of high polymer adhesive on the upper surface of the plastic ring, wherein the thickness of an adhesive layer of an adhesive coating area outside the plastic ring is equal to the sum of the thickness of the plastic ring and the thicknesses of an upper adhesive layer and a lower adhesive layer of the plastic ring and is 0.3mm, removing redundant adhesive around the plate, and curing at normal temperature to obtain an adhesive plate;
3. placing an adhesive plate on the female die, positioning the adhesive plate, ensuring that the axial leads of the plastic ring and the female die are overlapped, respectively corresponding to the left rubber injection pipe 13 and the right rubber injection pipe 5 through two through holes on the upper plate, overlapping the axial lead of the corresponding rubber injection pipe through each through hole, and fixing the adhesive plate;
4. the main switch of the device is opened, so that the left cylinder 11, the middle cylinder 9 and the right cylinder 3 are started simultaneously, and piston rods of the cylinders respectively drive the composite male die 7, the blank holder 6 and the glue injection pressure regulating system to move downwards at a constant speed until the blank holder 6 contacts with an upper plate and compresses the upper plate and a lower plate; the left cylinder switch is regulated to enable a piston rod of the left cylinder 11 to push the left glue injection 13 to move downwards into a left through hole of an upper plate material, and the right cylinder 3 assembly body keeps the original position;
the left rubber injection pipe 13 slowly injects high polymer adhesive into the inner region of the plastic ring, the air in the cavity is discharged from the right through hole of the upper plate along with the entering of the adhesive, when the adhesive is fully filled in the inner region of the plastic ring, the rubber injection is stopped, and simultaneously the left cylinder switch and the right cylinder switch are regulated to ensure that the left cylinder piston rod 12 drives the left rubber injection pipe to move downwards, the right cylinder piston rod 4 drives the right rubber injection pipe to move downwards, the step surfaces of the left rubber injection pipe and the right rubber injection pipe are ensured to fully cover and compress the aluminum plate, and the rubber overflow is prevented;
5. opening a switch of the middle cylinder 9, so that a piston rod of the middle cylinder 9 drives the composite punch 7 to move downwards and punch, and the aluminum plate and the steel plate start to deform along with the downwards pressing of the composite punch 7; meanwhile, pressure sensors at the pipe orifices of the left rubber injection pipe 13 and the right rubber injection pipe 5 monitor the pipe orifice pressure in real time, namely the pressure value of the adhesive at the rubber injection orifice, and the measured result is transmitted to a sensor display screen, the left cylinder and the right cylinder are regulated according to the pressure value, so that the pressure values at the pipe orifices of the left rubber injection pipe 13 and the right rubber injection pipe 5 are ensured to be equal until riveting is completed, and an interlocking structure is formed by the engagement of the aluminum plate and the steel plate;
6. after riveting, keeping the positions of the blank holder 6, the composite male die 7 and the female die 8 still, and maintaining the pressure of the aluminum plate and the steel plate; meanwhile, a heating switch of the device is regulated, so that a heating coil 17 in the composite male die 7 heats a riveting piece until the left air cylinder 11 and the right air cylinder 3 respectively drive the left rubber injection tube 13 and the right rubber injection tube 5 to move upwards to initial positions after the adhesive is in a solid-liquid coexisting state; and keeping the heating coil 14 to continuously heat the riveting piece, and after the adhesive is completely solidified, adjusting the switch of the middle air cylinder 9, so that the middle air cylinder 9 drives the composite male die 7 to move up to the initial height, and drives the blank holder 6 to move up to the original position, thereby completing the riveting process.
Claims (4)
1. The real-time pressure-regulating glue injection composite glue riveting device comprises an upper die holder (1), a lower die holder (18), a blank holder (6), a composite male die (7), a female die (8), bolts (2), four guide sleeves (14) and four guide posts (15); four guide sleeves (14) with the same structure are distributed on four corners of an upper die holder (1), the guide sleeves (14) are welded with the upper die holder, the upper die holder (1) is welded with each guide sleeve (14), each guide sleeve (14) corresponds to one guide pillar (15), the guide sleeves (14) move up and down along the guide pillars (15), and a lower die holder (18) is in transition fit connection with a female die (8); an annular cavity is arranged at the center of the female die (8), namely a female die cavity;
the device is characterized by further comprising an injecting glue pressure regulating system, four heating coils and a control box;
the glue injection pressure regulating system comprises three cylinders with the same structure, two glue injection pipes and two pressure sensors; the three cylinders with the same structure are a left cylinder (11), a middle cylinder (9) and a right cylinder (3), the two rubber injection pipes are a left rubber injection pipe (13) and a right rubber injection pipe (5), a left cylinder piston rod (12) is in threaded connection with the upper end of the left rubber injection pipe (13), a right cylinder piston rod (4) is in threaded connection with the upper end of the right rubber injection pipe (5), a pressure sensor is arranged at the pipe orifice of the left rubber injection pipe (13), a pressure sensor is arranged at the pipe orifice of the right rubber injection pipe (5), an upper die holder (1) is fixedly connected with each cylinder, the piston rod of the middle cylinder (9) is in threaded connection with a composite punch (7), the upper die holder (1) is connected with a blank holder (6) through bolts (2), and the composite punch (7) moves up and down in a central hole of the blank holder (6), and four heating coils (17) are uniformly distributed on the circumference of the bottom of the composite punch (7);
the control box is provided with a left cylinder switch, a middle cylinder switch, a right cylinder switch, a main switch, a heating switch and a pressure sensor display screen respectively, wherein the left cylinder switch is used for controlling the starting of a left cylinder (11), the middle cylinder switch is used for controlling the starting of a middle cylinder (9), the right cylinder switch is used for controlling the starting of a right cylinder (3), the heating switch is used for controlling a heating coil (17) to heat, the pressure sensor display screen is used for monitoring the pressure values of the pipe orifice of a left rubber injection pipe (13) and the pipe orifice of a right rubber injection pipe (5) in real time, the control box is arranged in a cavity in an upper die holder (1), the pressure values of the pipe orifice of the left cylinder (11) and the right cylinder (3) are regulated according to the pressure values, and the pressure values of the pipe orifice of the left rubber injection pipe (13) and the pipe orifice of the right rubber injection pipe (5) are guaranteed to be equal;
the upper die holder (1) is fixedly connected with each air cylinder specifically: three round holes with the same structure are uniformly formed in the bottom surface of the upper die holder (1), each round hole corresponds to one air cylinder, and the top end of each air cylinder is fixedly connected with the round hole;
the upper die holder (18) and the female die (8) are excessively matched specifically as follows: two identical protruding blocks are respectively arranged on the left side and the right side of the upper part of the lower die holder (18), and are clamped into two identical grooves at the corresponding positions of the lower part of the female die (8), and the protruding blocks are in transition fit connection with the grooves.
2. The real-time pressure-regulating glue injection composite glue riveting device according to claim 1 is characterized in that the composite male die (7) is a solid frustum-shaped structural member and is made of high-hardness die steel, four cylindrical pore channels with the same structure are formed in the bottom ring surface of the composite male die (7) from outside to inside, a heating coil is arranged in each pore channel, the axis of each cylindrical pore channel is intersected with the central axis of the composite male die (7), the cylindrical pore channels are not communicated, and insulating materials are coated on the surfaces of each cylindrical pore channel and the composite male die.
3. The real-time pressure-regulating glue injection composite glue riveting device according to claim 1, wherein the blank holder (6) is of a hollow cylindrical structure, the surface of the blank holder is coated with insulating materials, the blank holder is made of high-hardness die steel, and the blank holder is arranged opposite to the female die (8).
4. The real-time pressure-regulating glue injection composite glue riveting device according to claim 1, wherein the female die (8) is made of high-hardness die steel, insulating materials are coated on the surfaces of the female die, the female die is a disc-shaped structural member, an annular cavity is arranged at the center of the female die, the center of the annular cavity is provided with a conical boss, and the rotation axis of the annular cavity is collinear with the rotation axis of the conical boss.
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| CN201810302284.8A CN108527765B (en) | 2018-04-04 | 2018-04-04 | Real-time pressure regulating injecting glue compound glue riveting device |
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| CN201810302284.8A CN108527765B (en) | 2018-04-04 | 2018-04-04 | Real-time pressure regulating injecting glue compound glue riveting device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110000287B (en) * | 2019-03-27 | 2024-01-12 | 一汽-大众汽车有限公司 | Optimized forming system and method for rivet-free adhesive riveting connection |
| CN110000288B (en) * | 2019-03-27 | 2024-01-16 | 一汽-大众汽车有限公司 | Reshaping device and method for rivet-free adhesive riveting connection |
| CN111421095B (en) * | 2020-04-15 | 2022-01-18 | 成都飞机工业（集团）有限责任公司 | Glue-rivet mixed assembly method and assembly structure of composite lip and air inlet channel |
| CN112024283A (en) * | 2020-08-20 | 2020-12-04 | 深圳市裕展精密科技有限公司 | Lead-in device, lead-in method and product |
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