DE102016101945B4 - Hot riveting stamp and hot riveting device - Google Patents
Hot riveting stamp and hot riveting device Download PDFInfo
- Publication number
- DE102016101945B4 DE102016101945B4 DE102016101945.3A DE102016101945A DE102016101945B4 DE 102016101945 B4 DE102016101945 B4 DE 102016101945B4 DE 102016101945 A DE102016101945 A DE 102016101945A DE 102016101945 B4 DE102016101945 B4 DE 102016101945B4
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- DE
- Germany
- Prior art keywords
- rivet
- foot
- stamp
- heating
- heißnietstempels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/60—Riveting or staking
- B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
- B29C65/305—Electrical means involving the use of cartridge heaters
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
- B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8167—Quick change joining tools or surfaces
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
- B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8182—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
- B29C66/81821—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
- B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
- B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
- B29C66/91951—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to time, e.g. temperature-time diagrams
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Heißnietstempel (402) aufweisend einen Fuß (412) mit einer Arbeitsfläche (403), die mittels einer Heizeinheit (404) erhitzbar ist, wobei die Heizeinheit (404) in oder an dem Heißnietstempel (402) angeordnet ist und wobei die Arbeitsfläche (403) des Fußes (412) an die zu erzeugende Nietkopfkontur angepasst ist, und einen Aufnahmebereich, mittels dessen der Heißnietstempel (402) an einer Vorrichtung befestigbar ist, wobei zwischen dem Aufnahmebereich und dem Fuß (413) mit der Arbeitsfläche (403) eine thermische Trenneinheit (408) vorgesehen ist, welche eine direkte Wärmeübertragung zwischen dem Fuß (412) mit der Arbeitsfläche (403) und dem Aufnahmebereich verhindert, dadurch gekennzeichnet, dass die thermische Trenneinheit (408) von einem Bereich mit einer Reduzierung des Materialquerschnitts mittels der Ausbildung von Gitterstrukturen gebildet ist.A hot riveting punch (402) comprising a foot (412) having a work surface (403) that is heatable by a heating unit (404), the heating unit (404) being disposed in or on the hot riveting punch (402), and wherein the work surface (403) of the foot (412) is adapted to the rivet head contour to be generated, and a receiving area, by means of which the Heißnietstempel (402) is attachable to a device, wherein between the receiving area and the foot (413) with the working surface (403) is a thermal separation unit ( 408) is provided, which prevents direct heat transfer between the foot (412) with the work surface (403) and the receiving area, characterized in that the thermal separation unit (408) is formed by a region with a reduction of the material cross section by means of the formation of lattice structures is.
Description
Die vorliegende Erfindung betrifft einen Heißnietstempel und eine Heißnietvorrichtung.The present invention relates to a Heißnietstempel and a Heißnietvorrichtung.
Das Heißnieten, auch Heißverstemmen genannt, ist ein gängiges Verfahren in der heutigen Kunststofffügetechnik. Bei einem solchen Kunststofffügeprozess werden thermoplastische Kunststoffbauteile miteinander bzw. mit metallischen Komponenten form-, stoff- und/oder kraftschlüssig verbunden, wobei keine Zusatzmaterialien wie Schrauben oder Klebstoffe benötigt werden.Hot riveting, also called hot caulking, is a common process in today's plastic joining technology. In such a plastic joining process, thermoplastic components are connected with each other or with metallic components positively, materially and / or non-positively, with no additional materials such as screws or adhesives are needed.
Eine form-, stoff- und/oder kraftschlüssige Verbindung wird durch die unter Einwirkung von Kraft und Wärme umgeformten Kunststoffnieten bzw. -zapfen, die auch als Nietdome bezeichnet werden, realisiert. Die Einbringung der notwendigen Kraft und Wärme in den Kunststoff erfolgt dabei durch beheizte Heißnietstempel.A positive, material and / or non-positive connection is realized by the plastic rivets or pins, which are also called rivet domes, under the influence of force and heat. The introduction of the necessary force and heat in the plastic takes place by heated Heißnietstempel.
Das Heißnieten stellt ein vergleichsweise einfaches und robustes sowie gleichzeitig ein thermisch und mechanisch schonendes Fügeverfahren dar, welches die Erzeugung von qualitativ hochwertigen strukturellen Verbindungen zwischen Kunststoffen, Kunststoffen und Metallen oder Kunststoffen und anderen Materialien ermöglicht.Hot riveting represents a comparatively simple and robust, as well as a thermally and mechanically gentle joining process, which enables the production of high-quality structural connections between plastics, plastics and metals or plastics and other materials.
Das Heißnieten ist vor allem in der Automobilzulieferindustrie, in der Medizintechnik und in der Mikroelektronik eine breit angewendete Fügetechnologie.Hot riveting is a widely used joining technology, above all in the automotive supply industry, in medical technology and in microelectronics.
Bekannt ist vor allem das Heißluftnieten. Beim Heißluftnieten werden Nieten aus einem thermoplastischen Kunststoff verwendet. Um den Niet in den plastischen Zustand überzuführen, wird ein Lufterhitzer mit einem Luftaustrittsrohr verwendet, das von der Seite schräg auf den Niet gerichtet ist. Da der Niet üblicherweise nur von einer Seite mit Heißluft angeströmt wird, nimmt das Erwärmen des Niets eine entsprechend lange Heizzeit in Anspruch. Die Pressposition des Stempels muss solange eingehalten werden, bis der verformte plastische Niet erstarrt ist. Hierzu wird die Kaltluft über ein Rohr mit einer Düse seitlich gegen den Niet geblasen, auf den der Stempel gepresst ist. Damit erfordert auch das Abkühlen des Niets eine entsprechend lange Kühlzeit. Aufgrund der langen Heizzeit und der langen Kühlzeit lässt die Taktzeit einer solchen Vorrichtung zu wünschen übrig. Zudem nimmt das Rohr mit der Düse neben dem Stempel Platz in Anspruch, sodass ein Nieten mit einem geringen Nietabstand nicht erfolgen kann.Above all, hot air riveting is known. Hot air riveting uses rivets made of a thermoplastic material. In order to bring the rivet in the plastic state, an air heater is used with an air outlet pipe, which is directed from the side obliquely on the rivet. Since the rivet is usually supplied with hot air from only one side, heating the rivet requires a correspondingly long heating time. The pressing position of the punch must be maintained until the deformed plastic rivet has solidified. For this purpose, the cold air is blown through a pipe with a nozzle laterally against the rivet on which the punch is pressed. Thus, the cooling of the rivet requires a correspondingly long cooling time. Due to the long heating time and the long cooling time, the cycle time of such a device leaves something to be desired. In addition, the pipe with the nozzle takes up space next to the punch, so that riveting with a small rivet spacing can not take place.
In der
Aus der
Aus der
Aus
Aus der
Bei den bekannten Heißnietverfahren erfolgt eine indirekte Erwärmung der Arbeitsfläche des Stempels, was aufgrund insbesondere der relativ großen zu erwärmenden Masse des Stempels eine entsprechend lange Zeit in Anspruch nimmt. Zudem ist der Stempel üblicherweise mit anderen gut wärmeleitenden Komponenten direkt verbunden, wodurch nicht nur die Wärmeverluste hoch sind, sondern auch insbesondere bei thermisch sensiblen Komponenten deren Funktionsfähigkeit und Lebensdauer beeinträchtigt werden können.
Der resultierende Wirkungsgrad einer derartigen Stempelbeheizung ist daher sehr gering. Es beträgt die erforderliche elektrische Leistung einer Heizpatrone üblicherweise ca. zweihundert Watt. Das Abkühlen des Stempels erfolgt üblicherweise, indem Kaltluft über ein Rohr mit einer Düse seitlich gegen die Nietstelle mit angepresstem Stempel geblasen wird. Die an dem Stempel vorbeiströmende Luft kann jedoch nur wenig Wärme aufnehmen, was den Nachteil mit sich bringt, dass entweder lange angeblasen oder ein hoher Luftvolumenstrom verwendet werden muss. Damit erfordert auch das Abkühlen des Nietkopfs eine entsprechend lange Zeit.In the known Heißnietverfahren there is an indirect heating of the working surface of the punch, which takes due to in particular the relatively large mass of the stamp to be heated a correspondingly long time to complete. In addition, the stamp is usually directly connected to other good heat-conducting components, which not only the heat losses are high, but also their thermal performance and life can be affected especially in thermally sensitive components.
The resulting efficiency of such a stamp heating is therefore very low. It is the required electrical power of a heating cartridge usually about two hundred watts. Cooling of the stamp is usually done by cold air is blown through a pipe with a nozzle laterally against the riveting with pressed stamp. However, the air flowing past the stamp can absorb only a small amount of heat, which entails the disadvantage that either long blown or a high air volume flow must be used. Thus, the cooling of the rivet head requires a correspondingly long time.
Aufgrund der langen Aufheiz- und Kühlzeiten lässt die Prozesszykluszeit der bekannten Heißnietanlagen von durchschnittlich ca. sechzig Sekunden zu wünschen übrig, und die die Taktzeitanforderungen der Industrie, insbesondere der Automobilzulieferindustrie, werden deutlich überschritten.Due to the long heating and cooling times, the process cycle time of the known hot riveting systems leaves an average of about sixty seconds to be desired, and the cycle time requirements of the industry, in particular the automotive supply industry, are significantly exceeded.
Nachteilig ist weiterhin, wie ausgeführt, die geringe Energieeffizienz. Das Heißnietverfahren stellt daher keinen energieeffizienten Fügeprozess dar. Außerdem sind vergleichsweise lange Prozesszeiten notwendig, wodurch das Verfahren als unwirtschaftlich einzustufen ist.Another disadvantage is, as stated, the low energy efficiency. The hot riveting process therefore does not represent an energy-efficient joining process. In addition, comparatively long process times are necessary, which makes the process uneconomical.
Es ist daher Aufgabe dieser Erfindung den bekannten Heißnietprozess, insbesondere im Kunststoffbereich, zu verbessern und sowohl die Prozesszykluszeit beim Heißnieten als auch den dazu erforderlichen Energieaufwand zu reduzieren.It is therefore an object of this invention to improve the known Heißnietprozess, especially in the plastic sector, and to reduce both the process cycle time during hot riveting and the energy required for this purpose.
Diese Aufgabe wird durch einen Heißnietstempel mit den Merkmalen des Patentanspruches 1 und eine Heißnietvorrichtung mit den Merkmalen der Patentanspruches 9 gelöst.This object is achieved by a Heißnietstempel with the features of claim 1 and a Heißnietvorrichtung with the features of claim 9.
Der erfindungsgemäße Heißnietstempel weist einen Fuß mit einer Arbeitsfläche auf, die mittels einer Heizeinheit erhitzbar ist. Die Heizeinheit ist in oder an dem Heißnietstempel angeordnet. Die Arbeitsfläche des Fußes bzw. im oder am Fuß ist an die zu erzeugende Nietkopfkontur angepasst. Es ist außerdem ein Aufnahmebereich vorhanden, mittels dessen der Heißnietstempel an oder in einer Vorrichtung befestigbar ist Zwischen dem Aufnahmebereich und dem Fuß mit der Arbeitsfläche ist eine thermische Trenneinheit vorgesehen, welche eine direkte Wärmeübertragung zwischen dem Fuß mit der Arbeitsfläche und dem Aufnahmebereich verhindert.The Heißnietstempel invention has a foot with a work surface, which is heated by a heating unit. The heating unit is arranged in or on the Heißnietstempel. The working surface of the foot or in or on the foot is adapted to the Nietkopfkontur to be generated. There is also a receiving area, by means of which the hot riveting die can be fastened to or in a device. Between the receiving area and the foot with the working surface, a thermal separation unit is provided, which prevents a direct heat transfer between the foot with the working surface and the receiving area.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 2 ist, dass die thermische Trenneinheit aus einer Schicht mit reduzierter Wärmeleitfähigkeit gegenüber dem Material des Fußes und des Aufnahmebereichs des Heißnietstempels besteht und/oder von einem Bereich mit einer Reduzierung des Materialquerschnitts mittels der Ausbildung von Gitterstrukturen gebildet ist.It is advantageous according to the embodiment according to claim 2, that the thermal separation unit consists of a layer with reduced thermal conductivity compared to the material of the foot and the receiving area of the Heißnietstempels and / or is formed by a region with a reduction of the material cross-section by means of the formation of lattice structures.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 3 ist, dass der Heißnietstempel mindestens einen Kanal besitzt, der den Heißnietstempel in seiner Längsachse im Innern durchläuft und mindestens eine Öffnung besitzt, die in der Nähe der Arbeitsfläche des Fußes angeordnet ist.It is advantageous according to the embodiment of claim 3 that the Heißnietstempel has at least one channel which passes through the Heißnietstempel in its longitudinal axis in the interior and has at least one opening which is arranged in the vicinity of the working surface of the foot.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 4 ist, dass der Fuß des Heißnietstempels eine Verjüngung aufweist, oberhalb derer die Öffnung des Kanals ausmündet.Advantageous according to the embodiment according to claim 4, that the foot of Heißnietstempels has a taper, above which opens the opening of the channel.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 5 ist, dass die Heizeinheit ein keramisches Heizelement ist und/oder dass die Heizeinheit im Fuß des Heißnietstempels angeordnet ist. It is advantageous according to the embodiment according to claim 5, that the heating unit is a ceramic heating element and / or that the heating unit is arranged in the foot of Heißnietstempels.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 6 ist, dass der Fuß des Heißnietstempels gegenüber dem Aufnahmebereich des Heißnietstempels gekröpft angeordnet ist.It is advantageous according to the embodiment according to claim 6, that the foot of the Heißnietstempels opposite the receiving area of the Heißnietstempels is arranged cranked.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 7 ist, dass die thermische Trenneinheit im Kröpfungsbereich integriert ist.It is advantageous according to the embodiment according to claim 7 that the thermal separation unit is integrated in the offset area.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 8 ist, dass im Fuß des Heißnietstempels eine von außen zugängliche Aussparung vorhanden ist, in welche die Heizeinheit einsetzbar ist.It is advantageous according to the embodiment according to claim 8, that in the foot of Heißnietstempels an externally accessible recess is provided, in which the heating unit is used.
Die erfindungsgemäße Heißnietvorrichtung nach Patentanspruch 9 besitzt eine Befestigungskomponente zur kraft- und/oder formschlüssigen Aufnahme mindestens eines Heißnietstempels. Es ist außerdem eine Trägerplatte vorhanden, an welcher mindestens eine Befestigungskomponente anordenbar ist. Es ist eine Arretiervorrichtung zur kraftschlüssigen Aufnahme mindestens zweier Fügepartner, die mittels mindestens eines Niets verbindbar sind, vorhanden. Die Fügepartner weisen Durchbrüche, vorzugsweise in Form von Bohrungen auf, durch welche ein Nietdom führbar ist, der die beiden Fügepartner verbindet. Es ist in der Heißnietvorrichtung mindestens ein Heißnietstempel so angeordnet, dass dieser in einer Position der Vorrichtung auf dem mindestens einen Nietdom zum Liegen kommt. Dies ist die Verformungsposition. Es ist eine Antriebseinheit vorhanden, die von einer elektronischen Steuereinheit ansteuerbar ist, wobei mittels der Antriebseinheit, gesteuert über die elektronische Steuereinheit, die Trägerplatte in Richtung auf die Arretiervorrichtung oder von dieser weg bewegbar ist. Die elektronische Steuereinheit steuert die Erwärmung des mindestens einen Heißnietstempels über dessen Heizeinheit, wobei die Steuereinheit die Vorrichtung in einem Zyklus mit mehreren einander nachfolgenden Arbeitsschritten betreibt. Zunächst fügt die Steuereinheit die mindestens zwei Fügepartner über eine mechanische Betätigungseinheit in die Arretiervorrichtung ein und führt den Nietdom entsprechend ein; in einer vorteilhaften Ausgestaltung der Erfindung ist der Nietdom bereits eingeführt. Anschließend oder zeitgleich steuert die elektronische Steuereinheit die Erwärmung des mindestens einen Heißnietstempel auf eine voreinstellbare Prozesstemperatur und hält diese Temperatur nach Erreichen der Prozesstemperatur durch geeignete Ansteuerung der Heizeinheit des mindestens einen Heißnietstempels nahezu konstant. Sodann steuert die Steuereinheit die Trägerplatte mittels der Antriebseinheit auf die Fügepartner und presst den mindestens einen Heißnietstempel mit einer vordefinierten Kraft auf den mindestens einen Nietdom des Niets und belässt dies für einen voreinstellbaren Zeitraum. Danach leitet die elektronische Steuereinheit über einen einstellbaren Zeitraum aus dem mindestens einen Luftkanal des mindestens einen Heißnietstempels Kühlluft, wodurch der Fuß des mindestens einen Heißnietstempels und der Niet gekühlt werden. Anschließend entfernt die Steuereinheit die Trägerplatte mittels der Antriebseinheit von den Fügepartnern, entnimmt diese aus der Arretiervorrichtung und fügt erneut mindestens zwei Fügepartner über eine mechanische Betätigungseinheit in die Arretiervorrichtung ein. Sodann wird der Prozess erneut gestartet.The Heißnietvorrichtung invention according to claim 9 has a fastening component for non-positive and / or positive reception of at least one Heißnietstempels. There is also a carrier plate available, on which at least one fastening component can be arranged. There is a locking device for frictionally receiving at least two joining partners, which are connectable by means of at least one rivet present. The joining partners have openings, preferably in the form of holes, through which a rivet is feasible, which connects the two joining partners. At least one hot riveting punch is arranged in the hot riveting device such that it comes to rest in a position of the device on the at least one rivet dome. This is the deformation position. There is a drive unit available, which is controlled by an electronic control unit, wherein by means of the drive unit, controlled by the electronic control unit, the support plate in the direction of the locking device or away from it is movable. The electronic control unit controls the heating of the at least one Heißnietstempels via the heating unit, wherein the control unit operates the device in a cycle with a plurality of successive steps. First, the control unit inserts the at least two joining partners via a mechanical actuating unit in the locking device and introduces the Nietdom accordingly; In an advantageous embodiment of the invention, the rivet dome is already introduced. Subsequently or at the same time, the electronic control unit controls the heating of the at least one Heißnietstempel to a presettable process temperature and keeps this temperature after reaching the process temperature by suitable control of the heating unit of the at least one Heißnietstempels almost constant. Then, the control unit controls the carrier plate by means of the drive unit to the joining partners and presses the at least one Heißnietstempel with a predefined force on the at least one Nietdom of the rivet and leaves this for a presettable period. Thereafter, the electronic control unit over an adjustable period of time from the at least one air duct of the at least one Heißnietstempels cooling air, whereby the foot of the at least one Heißnietstempels and the rivet are cooled. Subsequently, the control unit removes the support plate by means of the drive unit from the joining partners, removes them from the locking device and again inserts at least two joining partners into the locking device via a mechanical actuation unit. Then the process is restarted.
Vorteilhaft gemäß der Ausführung nach Patentanspruch 10 ist, dass die Prozesstemperatur zum Ausbilden des Nietkopfes nach etwa sieben Sekunden wird erreicht und der Abkühlvorgang in etwa zehn Sekunden in Anspruch nimmt.Advantageous according to the embodiment of claim 10 is that the process temperature for forming the rivet head after about seven seconds is reached and the cooling process takes about ten seconds.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich anhand der abhängigen Ansprüche, der weiteren Beschreibung sowie anhand eines konkreten Ausführungsbeispiels, welches anhand von Figuren erläutert wird.Advantageous embodiments of the invention will become apparent from the dependent claims, the further description and with reference to a specific embodiment, which will be explained with reference to figures.
Es zeigt:
-
1 eine Heißnietvorrichtung nach dem Stand der Technik; -
2 einen Prozesszyklus nach dem Stand der Technik während eines Heißnietvorgangs; -
3 Temperatur-Zeit-Verläufe in Knotenpunkten eines Stempels nach dem Stand der Technik; -
4 eine erfindungsgemäße Heißnietvorrichtung mit einem erfindungsgemäßen Heißnietstempel; -
5 einen Prozesszyklus währen eines Heißnietvorgangs mit einer erfindungsgemäßen Heißnietvorrichtung und einem erfindungsgemäßen Heißnietstempel; -
6 Temperatur-Zeit-Verläufe in Knotenpunkten eines erfindungsgemäßen Heißnietstempels; und -
7 einen erfindungsgemäßen Heißnietstempel in einer perspektivischen Ansicht.
-
1 a Heißnietvorrichtung according to the prior art; -
2 a process cycle of the prior art during a Heißnietvorgangs; -
3 Temperature-time profiles in nodes of a stamp according to the prior art; -
4 a Heißnietvorrichtung invention with a Heißnietstempel invention; -
5 a process cycle during a Heißnietvorgangs with a Heißnietvorvorrichtung invention and a Heißnietstempel according to the invention; -
6 Temperature-time courses in nodes of a Heißnietstempels invention; and -
7 a Heißnietstempel invention in a perspective view.
Die nachfolgende Beschreibung anhand des konkreten Ausführungsbeispiels stellt keine Limitierung der Erfindung auf dieses konkrete Ausführungsbeispiel dar.The following description with reference to the concrete embodiment does not represent a limitation of the invention to this specific embodiment.
In
Die Trägerplatte
Es sind die Arbeitspositionen am Nietdom und die Ruheposition des Stempels
The
These are the working positions on the rivet dome and the resting position of the
In
Bei
Anschließend erfolgt der Verfahrensschritt des Abkühlens
Sodann wird im nächsten Verfahrensschritt des Abhebens bzw. erneuten Erwärmens
Es wird also der Stempel
Die Zeitdauer des Erwärmens
The duration of
Als Heizeinrichtung wird in der Regel eine elektrisch beheizte metallische Heizpatrone verwendet, die in den Stempel
Aufgrund der langen Aufheiz- und Kühlzeiten lässt die Prozesszykluszeit der herkömmlichen Heißnietanlage von durchschnittlich ca. sechzig Sekunden zu wünschen übrig.Due to the long heating and cooling times, the process cycle time of the conventional hot riveting plant leaves an average of about sixty seconds to be desired.
In
In
Es ist der Temperaturverlauf an den vier Knotenpunkten
In
In einer vorteilhaften Ausgestaltung der Erfindung sind mehr als zwei Kühlrohre
Es kann aber in einer weiteren vorteilhaften Ausgestaltung der Erfindung nur ein Kühlrohr
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen. Dass das oder die Kühlrohre
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Kühlrohre
Es ist eine thermische Trenneinheit
Es wird gezielt nur der Fuß
Der Heißnietstempel
Die Kühlrohre
Zugleich erfolgt eine Kühlung des gesamten Heißnietstempels
At the same time there is a cooling of the
Der Heißnietstempel
Die Trägerplatte
Der Heißnietstempel
Der Heißnietstempel
Durch die nunmehr konkret auf den Einzelfall einstellbare Erhitzung des Heißnietstempels
Es ist der Kühlluftstrom
Ein erfindungsgemäßer Heißnietstempel
Der erfindungsgemäße Heißnietstempel
The
Zur Beheizung des Heißnietstempels
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die thermische Trenneinheit
In
Es ist außerdem die Temperatur
It's also the temperature
Es wird also der Heißnietstempel
Der Zeitbedarf für den Verfahrensschritt des Umformens
Weiterhin ergibt sich ein veränderter Temperaturverlauf in der Umformphase
Furthermore, there is a changed temperature profile in the forming
Zur Beheizung des Heißnietstempels
Außerdem besitzt der Heißnietstempel
In
Es ist schematisch ein Heißnietstempel
In
Es wird die maximale Temperatur in der Nähe der Arbeitsfläche
Die Erwärmung der mit dem Heißnietstempel
Es ist daher eine Verkürzung der Aufheiz- und Abkühlzeiten jeweils um bis zu fünfzig Prozent erzielbar.It is schematically a
In
It will set the maximum temperature near the
The heating of the hot
It is therefore possible to shorten the heating and cooling times in each case by up to fifty percent.
Es wird nur ein relativ kleiner Bereich um die Arbeitsfläche
Der quasistationäre Temperaturzustand wird bereits nach ca. zehn Minuten erreicht. Im Fuß
In
In einer vorteilhaften Ausgestaltung der Erfindung ist der Fußbereich
Im Fußbereich
Der Fußbereich
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die thermische Trenneinheit durch eine Schicht eines Materials mit reduzierter Wärmeleitfähigkeit gegenüber dem Material, aus dem der Korpus des Heißnietstempels gefertigt ist, besteht. Es kann daher für die Trennschicht ein Material mit Edelstahlanteilen eingesetzt werden.In a further advantageous embodiment of the invention it is provided that the thermal separation unit consists of a layer of a material with reduced thermal conductivity compared to the material from which the body of the Heißnietstempels is made. It can therefore be used for the release layer, a material with stainless steel components.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass der Bereich des Übergangs zwischen Fußbereich
Es wird im Folgenden eine erfindungsgemäße Vorrichtung zum Heißnieten beschrieben, ohne auf eine Darstellung in einer Figur zu verweisen. Die Vorrichtung zum Heißnieten verwendet einen oder mehrere der vorherig beschriebenen Heißnietstempel. Die Heißnietstempel, die in der Heißnietvorrichtung, wie eingangs beschrieben, angeordnet sind, werden mit einer ersten Geschwindigkeit in Richtung der kongruenten Oberflächen der Nietdome bis zum Erreichen einer definierten Startposition, unter Beachtung vorgegebener oder voreingestellter definierter Koordinaten, mindestens eines Heißnietstempels verfahren und sodann mit einer geringeren Geschwindigkeit bis zum Berühren der Oberfläche mindestens eines Nietdomes vorgeschoben. Während des Rücklaufs und/oder während des Vorschubs bis zur Anlage des Heißnietstempels an dem Nietdom oder nach dem Vorschub bis zum Nietdom werden die Heißnietstempel auf eine Solltemperatur aufgeheizt. Die Heißnietstempel werden mit einer Vorschubbewegung, unter Aufbringung einer geregelten, konstanten oder einer progressiv ansteigenden Druckkraft, auf die Nietdome verfahren, bis die Verformung der Nietdome erreicht ist oder bis zum Erreichen eines definierten Verformungsgrades des mindestens einen Nietdomes.A hot-riveting device according to the invention will be described below, without referring to a representation in a figure. The hot riveting apparatus uses one or more of the previously described hot riveting dies. The Heißnietstempel, which are arranged in the Heißnietvorrichtung, as described above, are moved at a first speed in the direction of the congruent surfaces of the rivet dome until reaching a defined starting position, taking into account predetermined or preset defined coordinates, at least one Heißnietstempels and then with a lower speed to touch the surface of at least one Nietdomes advanced. During the return and / or during the feed to the plant of the Heißnietstempels at the rivet or after the feed to the rivet dome hot riveting are heated to a desired temperature. The Heißnietstempel be moved with a feed movement, applying a controlled, constant or a progressively increasing pressure force on the rivet mandrel until the deformation of the rivet dome is reached or until reaching a defined degree of deformation of the at least one Nietdomes.
Durch die stufenweise Änderung der Verfahrgeschwindigkeit wird erreicht, dass die Heißnietstempel sehr schnell den Ausgangspunkt erreichen, da die Koordinaten vorgegeben oder beim Einrichten der Vorrichtung durch einen Sensor erfasst werden und in einer Speichereinheit der Steuereinheit, die vorzugsweise eine elektronische Steuereinheit ist, gespeichert werden.
Es ist auch eine zeitliche Zuordnung im Verfahrensablauf der Verfahrensschritte der Vorrichtung zum Heißnieten vorgesehen, so dass auch der Zeitpunkt, zu welchen der Vorschub unterbrochen werden soll, festgelegt werden kann. Ab diesem Zeitpunkt kann ein langsameres Verfahren einsetzen und/oder auch ein
Aufheizen oder ein Fortführen der Aufheizung des Heißnietstempels oder der Heißnietstempel, die in der Vorrichtung angeordnet sind, wie beschrieben in oder an der Trägerplatte. Die Verfahrgeschwindigkeit zwischen der Ausgangsposition und dem Anschlag des Heißnietstempels auf der Oberfläche eines Hohl- oder Vollnietes aus Kunststoff oder der Endposition nach Abschluss der Verformung erfolgt gegenüber dem ersten Vorschub langsamer.
Mit dem Anliegen des Heißnietstempels am Nietdom wird über die Steuerung veranlasst, dass der Servomotor mit einer progressiven oder mittels einer geregelten gleichbleibenden Druckkraft den Nietdom in gewünschter Weise durch den Heißnietstempel, insbesondere dessen Arbeitsfläche, vorgegeben verformt.The gradual change of the travel speed ensures that the Heißnietstempel very quickly reach the starting point, since the coordinates are given or detected when setting up the device by a sensor and stored in a memory unit of the control unit, which is preferably an electronic control unit.
It is also a temporal assignment in the process flow of the method steps of the device for hot riveting provided so that the time at which the feed is to be interrupted, can be set. From this point on, a slower procedure can be used and / or entered
Heating or continuing the heating of the hot riveting punch or hot riveting dies arranged in the apparatus as described in or on the support plate. The speed of movement between the starting position and the stop of the Heißnietstempels on the surface of a hollow or rivet made of plastic or the final position after completion of the deformation takes place more slowly compared to the first feed.
With the concern of the Heißnietstempels rivet on the ruling is caused by the control that the servo motor with a progressive or by means of a regulated constant compressive force the rivet mandrel in the desired manner by the Heißnietstempel, in particular its working surface, given deformed.
Es hat sich gezeigt, dass bei Verwendung einer ansteigenden Beschleunigungskurve bei der Vernietung der Nietprozess im Vergleich zu einer Nietung mit konstanter Verformzeit zeitlich wesentlich verkürzt werden kann, ebenso wenn mit gleichbleibender Druckkraft auf den Nietkopf gedrückt wird.It has been found that when using a rising acceleration curve in the riveting of the riveting process can be significantly reduced in time compared to a rivet with a constant deformation time, as well as when pressed with constant compressive force on the rivet head.
Um den Nietprozess weiter zu beschleunigen, hat es sich als vorteilhaft erwiesen, dass bereits während der ersten beiden Bewegungsabschnitte der Heißnietkopf bzw. jeder der vorhandenen Heißnietköpfe aufgeheizt oder auf Solltemperatur nachgeheizt wird, während die Aufheizung schon während der Rückführphase der Druckplatte nach der Verformung erfolgt.In order to further accelerate the riveting process, it has proved to be advantageous for the hot rivet head or each of the existing hot rivet heads to be heated or reheated to desired temperature during the first two movement sections, while the heating takes place during the return phase of the pressure plate after the deformation.
Die Erfindung umfasst aber auch eine Vorrichtung zum Verbinden von Gegenständen durch Kunststoffheißvernietung mittels Umformung erwärmter thermoplastischer Nietdome mittels einer Vorrichtung mit einer definierten Anzahl von Heißnietköpfen unterschiedlicher Höhe und Querschnittsform, die nach dem Einlegen der Gegenstände in die Vorrichtung und der Nieten in kongruente Durchbrüche in den Gegenständen oder nach Durchstecken der an einem Gegenstand fixierten Nietdome durch Durchbrüche in den weiteren Gegenständen zunächst bis zum Berühren der Oberfläche mindestens eines Nietdomes verfahren werden und sodann wegabhängig bis zum Erreichen des Anschlages den Verformungsprozess jedes Nietdomes durch die aufgeheizten Heißnietköpfe bewirken.However, the invention also encompasses a device for joining articles by plastic hot riveting by means of forming heated thermoplastic rivet domes by means of a device having a defined number of hot rivet heads of different height and cross-sectional shape, which after insertion of the articles into the device and the rivets into congruent openings in the articles or after passing through the rivet dome fixed to an object through openings in the further objects, first to contact the surface of at least one rivet dome, and then, depending on the distance, until reaching the stop, effecting the deformation process of each rivet dome by the heated hot rivet heads.
Nachfolgend wird die Vorrichtung zum Heißnieten anhand der Figur
Die erfindungsgemäße Heißnietvorrichtung besitzt eine Befestigungskomponente zur kraft- und/oder formschlüssigen Aufnahme mindestens eines Heißnietstempels
Die Prozesstemperatur zum Ausbilden des Nietkopfes wird nach etwa sieben Sekunden erreicht und der Abkühlvorgang nimmt in etwa zehn Sekunden in Anspruch.Hereinafter, the device for hot riveting with reference to the figure
The Heißnietvorrichtung invention has a fastening component for non-positive and / or positive receiving at least one Heißnietstempels
The process temperature for forming the rivet head is reached after about seven seconds, and the cooling process takes about ten seconds.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 101101
- HeißnietvorrichtungHeißnietvorrichtung
- 102102
- Stempelstamp
- 104104
- Heizeinheitheating unit
- 105105
- Befestigungskomponentemounting component
- 106106
- Trägerplattesupport plate
- 107107
- Kühlrohrcooling pipe
- 108108
- Kühlluftcooling air
- 109109
- Nietdomrivet pin
- 110110
- Fügepartnerjoining partner
- 111111
- Fügepartnerjoining partner
- 112112
- Wärmefluss heat flow
- 201201
- Stempelstamp
- 202202
- Nietdomrivet pin
- 203203
- Fügepartnerjoining partner
- 204204
- Fügepartnerjoining partner
- 205205
- Erwärmen (Phase des Erwärmens)Heating (heating phase)
- 206206
- Umformen (Phase des Umformens)Forming (phase of forming)
- 207207
- Abkühlen (Phase des Abkühlens)Cooling (phase of cooling)
- 208208
- Anheben bzw. erneutes Erwärmen (Phase des Abhebens bzw. erneuten Erwärmens)Raising or reheating (lifting or reheating phase)
- t, t0, t1, t2, t3t, t0, t1, t2, t3
- Zeitpunkttime
- T, T1, T2T, T1, T2
- Temperatur temperature
- 301301
- Stempelstamp
- 302302
- Spitzetop
- 303303
- Arbeitsflächeworking surface
- P1, P2, P3, P4P1, P2, P3, P4
- Knotenpunkte hubs
- 401401
- HeißnietvorrichtungHeißnietvorrichtung
- 402402
- HeißnietstempelHeißnietstempel
- 403403
- Arbeitsflächeworking surface
- 404404
- Heizeinheitheating unit
- 405405
- Befestigungskomponentemounting component
- 406406
- Trägerplattesupport plate
- 407407
- Kühlluftrohr bzw. KühlluftkanalCooling air pipe or cooling air duct
- 408408
- thermische Trenneinheitthermal separation unit
- 409409
- Nietdomrivet pin
- 410410
- Fügepartnerjoining partner
- 411411
- Fügepartnerjoining partner
- 412412
- Fuß des HeißnietstempelsFoot of the riveting stamp
- 413413
- Austrittsöffnung (des Kühlluftrohrs bzw. Kühlluftkanals)Outlet opening (of the cooling air pipe or cooling air duct)
- 414414
- KühlluftstromCooling air flow
- 415415
- Wärmefluss heat flow
- 501501
- HeißnietstempelHeißnietstempel
- 502502
- Nietdomrivet pin
- 503503
- Fügepartnerjoining partner
- 504504
- Fügepartnerjoining partner
- 505505
- Erwärmen (Phase des Erwärmens)Heating (heating phase)
- 506506
- Umformen (Phase des Umformens)Forming (phase of forming)
- 507507
- Abkühlen (Phase des Abkühlens)Cooling (phase of cooling)
- 508508
- Anheben bzw. erneutes Erwärmen (Phase des Abhebens bzw. erneuten Erwärmens)Raising or reheating (lifting or reheating phase)
- 509509
- Fuß (des Heißnietstempels)Foot (of the riveting stamp)
- 510510
- thermische Trenneinheitthermal separation unit
- 511511
- Arbeitsfläche working surface
- t, t0, t1, t2, t3t, t0, t1, t2, t3
- Zeitpunkttime
- T, T1, T2T, T1, T2
- Temperatur temperature
- 601601
- HeißnietstempelHeißnietstempel
- 602602
- Arbeitsflächeworking surface
- 603603
- Fuß (des Heißnietstempels)Foot (of the riveting stamp)
- 604604
- thermische Trenneinheit thermal separation unit
- P1, P2, P3, P4P1, P2, P3, P4
- Knotenpunkte hubs
- 701701
- HeißnietstempelHeißnietstempel
- 702702
- Fußbereichfooter
- 703703
- Befestigungsbereichfastening area
- 704704
- Aussparungrecess
- 705705
- Verjüngungrejuvenation
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Cited By (1)
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WO2023021011A1 (en) | 2021-08-17 | 2023-02-23 | Richard Bergner Holding GmbH & Co. KG | System and method for processing workpieces, and processing station for a system of this kind |
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CN107695208A (en) * | 2017-09-22 | 2018-02-16 | 东莞帕姆蒂昊宇液态金属有限公司 | A kind of amorphous product automatic thermal riveting connection device |
CN114109018B (en) * | 2021-12-21 | 2023-05-12 | 黄伟 | Scaffold connecting device for building construction and application method thereof |
CN117445420B (en) * | 2023-12-20 | 2024-03-19 | 浙江明禾新能科技股份有限公司 | Semi-automatic hot riveting machine |
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WO2023021011A1 (en) | 2021-08-17 | 2023-02-23 | Richard Bergner Holding GmbH & Co. KG | System and method for processing workpieces, and processing station for a system of this kind |
DE102021209012A1 (en) | 2021-08-17 | 2023-02-23 | Richard Bergner Holding GmbH & Co. KG | System and method for processing workpieces and processing station for such a system |
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