CN113458735B - Method for manufacturing pull rod ball head for automobile - Google Patents
Method for manufacturing pull rod ball head for automobile Download PDFInfo
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- CN113458735B CN113458735B CN202110847802.6A CN202110847802A CN113458735B CN 113458735 B CN113458735 B CN 113458735B CN 202110847802 A CN202110847802 A CN 202110847802A CN 113458735 B CN113458735 B CN 113458735B
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- ball head
- seat
- ball
- rod
- head rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
Abstract
The invention discloses a method for manufacturing a ball head rod, which adopts 1) ball head rod manufacturing; 2) manufacturing a ball socket; 3) integrally assembling and processing; 4) the lubricant is added in four steps, so that the process steps of the pull rod ball head can be simplified, the assembly precision of the ball head seat and the ball head rod is improved, the time required by production is saved, and the production efficiency is improved. Through the cooperation of fixed assembly device, can not assemble bulb seat and bulb pole fast, damage when reducing bulb seat and bulb pole equipment can guarantee the precision when assembling simultaneously, improves the even degree of injection resin, improves the quality of pull rod bulb, prolongs the life of pull rod bulb. The invention can simplify the process steps of the pull rod ball head, improve the assembly precision of the ball head seat and the ball head rod, save the time required by production and improve the production efficiency.
Description
Technical Field
The invention belongs to the technical field of automobile accessories, and particularly relates to a manufacturing method of a pull rod ball head for an automobile.
Background
Generally, an automobile steering system includes: a steering wheel disposed in front of a driver seat; a steering shaft connected to a lower portion of the steering wheel; and a transmission case crossing a lower end of the steering shaft and converting a rotational movement force transmitted from the steering shaft into a linear movement force of left and right sides of the vehicle. The transmission case has a rack bar that slides left/right therein, and tie rods are coupled to both ends of the rack bar by tie rod balls. The rack bar extends left and right in a hollow rack housing forming the outer shape of the transmission case, and is axially slidable. Tie rods and tie rod balls are coupled to both ends of the rack bar, and tires for steering are coupled to the tie rod balls. The tie rod ball is arranged between the rack bar and the tie rod to axially transmit power and can swing and rotate.
The conventional pull rod ball head for the automobile is often more in steps and more complex in manufacturing, and the assembly precision is poorer in the process of assembling the ball head seat and the ball head rod.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a manufacturing method of a pull rod ball head for an automobile, which can simplify the process steps of the pull rod ball head, improve the assembly precision of a ball head seat and a ball head rod, save the time required by production and improve the production efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
the manufacturing method of the pull rod ball head for the automobile is characterized in that:
1) manufacturing a ball head rod:
the method comprises the steps of firstly, rough machining and forming raw materials, grinding the rod part to form an excircle, carrying out magnetic powder inspection, locally heating a ball head after the inspection is finished, carrying out hot upsetting on the ball head by adopting a die, carrying out heat treatment on the ball head rod after the ball head is formed, and carrying out integral shot blasting treatment. The method comprises the following steps of rough machining and forming a raw material part, then flaw detection and defective product screening, then hot upsetting of a ball head by a mold, rapid ball head forming, heat treatment of the ball head rod to change internal stress distribution and improve the strength of the ball head rod, and finally shot blasting treatment to change the roughness of the surface of the ball head rod so that the surface of the ball head rod is more light-ring.
2) Manufacturing a ball socket:
roughly machining and molding the raw materials, then cutting and grinding the outer part of the ball head seat according to the design requirements of a drawing, drilling and cutting to form a ball head groove, drilling a hole in the ball head seat to form an injection hole, communicating the injection hole with the ball head groove, rounding the rod part of the ball head seat, and then polishing the ball head seat. When the ball head seat is machined, the external shape is machined, after the machining is finished, a hole is drilled in the ball head seat, then a ball head groove is formed through slow hole reaming, and the accuracy of the ball head groove is guaranteed. Rounding and polishing operations ensure the surface precision and smoothness of the ball seat.
3) Integral assembly and processing:
fixing the ball head seat and the ball head rod, then heating the ball head seat, extruding the ball head of the ball head rod into the ball head groove of the ball head seat, then injecting resin into the ball head groove through the injection hole, and standing for cooling and molding the resin. Make the expansion of bulb seat through heating bulb seat, the impressing of the bulb pole of being convenient for, the injury when also making the bulb pole crowd into the bulb seat simultaneously is minimum, inject resin in the cavity that forms between bulb seat and bulb pole, can reduce the wearing and tearing between bulb seat and the bulb pole, the life-span of extension bulb seat and bulb pole, after resin wearing and tearing are totally, can inject new resin and guarantee the normal use of bulb seat and bulb pole simultaneously.
4) Adding a lubricant:
lubricating grease is added between the ball head and the resin to realize the lubrication of the ball head. The lubricant is used for realizing the lubrication of the ball head, so that the ball head can freely rotate and has small friction.
Further, the detailed steps of the ball head rod manufacturing are as follows:
a) roughly machining a ball head rod:
firstly, fixing the raw materials on a lathe, cutting into a shape by using the lathe, reserving 3-5mm more than the set size of a drawing, then, finely cutting the ball head rod of the initial prototype, and reserving 1-2mm according to the set size of the drawing. The rough machining of the ball head ensures the approximate shape of the ball head rod, is convenient for the subsequent finish machining of the ball head rod, and avoids the situation that the rough machining part is scrapped too deeply for a cutter.
b) Finish machining of the ball head rod:
after the rough machining of the ball head rod is finished, rounding the rod part, grinding the rod part to be smooth and in size to be designed, locally heating the ball head, placing the ball head in a die for hot heading forming, and performing finish machining on the ball head rod to ensure that the size of the ball head rod is consistent with the designed size of the drawing.
c) Ball head rod treatment:
the integral ball head rod is heated to 900 ℃, then the ball head rod is sent into a cooling channel for normalizing treatment, after the ball head rod is cooled to 550 ℃, the ball head rod is sent into an annealing furnace for annealing treatment, after the ball head rod is cooled along with the furnace, the ball head is locally inductively heated and quenched, and after the heat treatment of the ball head rod is finished, the ball head rod is placed on a processing table of a shot blasting machine for shot blasting treatment. Through heat treatment, the overall strength of the ball head rod is improved, the internal stress of the ball head rod is eliminated, and meanwhile, the ball head is quenched, so that the surface hardness of the ball head is improved.
Further, the detailed steps of the manufacturing of the ball seat are as follows:
a) roughly machining a ball head seat:
the raw materials are fixed on a lathe, the shape is cut according to the design requirements of a drawing, then the feeding depth of a cutter is increased, and 1-2mm is reserved according to the design size of the drawing. The rough machining of the ball head seat can facilitate the subsequent finish machining of the ball head seat, improve the machining precision of the ball head seat and reduce the rejection rate of rough materials.
b) Finish machining of the ball socket:
fixing the roughly machined ball head seat on a numerical control machine tool, inputting the size of the ball head seat, finely cutting the ball head seat, drilling an injection hole in the ball head seat after cutting is finished, communicating the injection hole with a ball head groove, and then polishing the ball head seat. The fine machining of the ball socket ensures the machining precision of the ball socket and improves the production quality of the ball socket.
Further, the detailed steps of the step assembly processing are as follows:
a) preparation of processing:
clamping a clamping block on the ball head seat, then resetting the fixed assembling device, checking the running condition of the fixed assembling device, ensuring that the fixed assembling device runs normally, and then respectively fixing the ball head rod and the ball head seat on the fixed assembling device; the ball head seat and the clamping block are connected before machining, so that subsequent fixing of the ball head seat on the fixing and assembling device can be facilitated, the fixing precision is guaranteed, and the production efficiency is improved.
b) Assembling the ball head rod and the ball head seat:
firstly, placing the ball head seat in a heating ring, heating by high-frequency induction, then extruding the ball head of the ball head rod into the ball head seat, and then waiting for the ball head seat to be cooled. The ball head seat is heated to expand the ball head seat, so that the ball head rod can be conveniently extruded, and the ball head rod and the ball head seat are not easy to damage in the extruding process.
c) Resin injection:
after the ball head seat is cooled, resin is injected into a cavity between the ball head and the ball head seat through the injection hole, and then the resin is cooled and molded. After the ball head seat is cooled, resin is injected, so that the injection effect of the resin can be ensured.
d) Resetting the workpiece:
the fixing of the ball head rod and the ball head seat is loosened, then the ball head rod is communicated with the ball head seat and taken out together, and then the fixing and assembling device is reset. The workpiece resetting and fixing assembly device is reset, so that the subsequent assembly and processing of the ball socket can be facilitated, and the production efficiency is improved.
Further, the detailed steps of the processing preparation in the step a are as follows: checking the operation condition of the device, can be under the prerequisite of normal operating with the clamp splice, fixed block and heating ring are whole to reset, later sheathe the connecting block in the pole portion of bulb seat, the relative position of adjustment connecting block and bulb seat, make bulb seat level place, the bottom of connecting block also is the level and places, later screw up the screw of connecting block and make the connecting block and the pole portion fixed connection of bulb seat, the bulb seat also is in the level state of placing when guaranteeing that the bottom of connecting block can the level place, place bulb seat level on the base, later the clamp splice cylinder starts, the recess of connecting block is aimed at to the bellying on the clamp splice, the clamp splice presss from both sides tight connecting block, the fixed block cylinder starts, the fixed block presss from both sides tight bulb pole. Through the setting of connecting block, realize the quick location of bulb seat, the centre gripping of the bulb seat of being convenient for when guaranteeing the precision of bulb seat centre gripping, also can improve clamping speed, shortens the processing required time.
Further, the detailed steps of the step b of assembling the ball head rod and the ball head seat are as follows: the clamping block seat cylinder is started to drive the clamping block seat to move upwards and drive the ball head seat to move upwards, then the heating ring cylinder is started to drive the heating ring to transversely move to the ball head seat to move out, then the heating ring is started to heat the ball head seat, after the ball head seat is heated, the heating ring returns, the clamping block seat cylinder moves downwards, then the positioning block cylinder is started to drive the positioning block to clamp the ball head seat, and then the fixing seat cylinder is started to push the fixing block downwards so that the ball head rod on the fixing block is pushed into the ball head seat. The ball head seat ascends, the ball head seat is inductively heated through the heating ring, then the ball head rod is fixed on the base, the precision of the ball head seat is guaranteed, and finally the ball head rod is pressed downwards and squeezed into the ball head seat.
Further, the detailed steps of the resin injection in the step c are as follows: connecting a resin injection pipe to an injection hole of the ball head seat, starting a fixed seat cylinder, adjusting the position of a ball head rod to ensure a cavity between the ball head rod and the ball head seat, injecting resin into the cavity, stopping injection when the height of the surface of the resin is consistent with that of the top surface of the ball head seat, separating the injection pipe when the resin is dry, and removing redundant resin at the bottom of the injection hole and redundant resin at the top of the ball head seat. The ball head rod and the ball head seat are fixed, the resin injection effect is improved, the resin uniformity is ensured, and the service life of the ball head seat is prolonged.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention adopts 1) the ball head rod to manufacture; 2) manufacturing a ball socket; 3) integrally assembling and processing; 4) the lubricant is added in four steps, so that the process steps of the pull rod ball head can be simplified, the assembly precision of the ball head seat and the ball head rod is improved, the time required by production is saved, and the production efficiency is improved. Through the cooperation of fixed assembly device, can not assemble bulb seat and bulb pole fast, damage when reducing bulb seat and bulb pole equipment can guarantee the precision when assembling simultaneously, improves the even degree of injection resin, improves the quality of pull rod bulb, prolongs the life of pull rod bulb.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a fixing and assembling device according to the present invention;
FIG. 2 is a schematic view of a heating structure of the ball socket of the present invention;
FIG. 3 is a schematic view of the clamping block seat of the present invention;
FIG. 4 is a schematic view of the fixing base of the present invention;
FIG. 5 is a schematic diagram of the structure of the clamping block of the present invention.
In the figure, 1-base; 2-clamping a block; 3-a clamping block cylinder; 4-a clamp block seat; 5-a clamping block seat cylinder; 6-connecting a block; 7-a heating ring; 8-heating ring cylinder; 9-fixing block; 12-a holder cylinder; 13-positioning blocks; 14-a positioning block cylinder; 15-ball seat; 16-ball head rod.
Detailed Description
As shown in fig. 1 to 5, the method for manufacturing a tie rod ball for an automobile of the present invention comprises the following steps:
1) the ball stud 16 is manufactured:
the method comprises the steps of firstly, rough machining and forming raw materials, grinding the rod part to form an excircle, carrying out magnetic powder inspection, locally heating the ball head after the inspection is finished, carrying out hot upsetting on the ball head by adopting a die, carrying out heat treatment on the ball head rod 16 after the ball head is formed, and carrying out integral shot blasting treatment. The method comprises the following steps of rough machining and forming a raw material part, then flaw detection and defective product screening, then hot upsetting of a ball head by a mold, rapid ball head forming, heat treatment of the ball head rod 16 to change internal stress distribution, improvement of the strength of the ball head rod 16, and finally shot blasting treatment to change the roughness of the surface of the ball head rod 16, so that the surface of the ball head rod 16 is more light-ring.
2) Manufacturing the ball socket 15:
rough machining and forming raw materials, then cutting and grinding the outer part of the ball head seat 15 according to the design requirements of a drawing, drilling and cutting to form a ball head groove, drilling a hole in the ball head seat 15 to form an injection hole, communicating the injection hole with the ball head groove, rounding the rod part of the ball head seat 15, and then polishing the ball head seat 15. When the ball socket 15 is machined, the external shape is machined, after the machining is finished, a hole is drilled in the ball socket 15, and then a ball groove is formed by slowly reaming, so that the precision of the ball groove is ensured. Rounding and polishing operations ensure the surface accuracy and smoothness of the ball cup 15.
3) And (4) integral assembly and processing:
fixing the ball head seat 15 and the ball head rod 16, then heating the ball head seat 15, extruding the ball head of the ball head rod 16 into the ball head groove of the ball head seat 15, then injecting resin into the ball head groove through the injection hole, and standing for cooling and molding of the resin. Make the bulb seat 15 inflation through heating the bulb seat 15, the indentation of the bulb pole 16 of being convenient for, the injury when also making the bulb pole 16 crowd into the bulb seat 15 simultaneously is minimum, inject resin in the cavity that forms between bulb seat 15 and bulb pole 16, can reduce the wearing and tearing between bulb seat 15 and the bulb pole 16, prolong the life-span of bulb seat 15 and bulb pole 16, after the resin wearing and tearing are totally spent, can inject new resin and guarantee the normal use of bulb seat 15 and bulb pole 16 simultaneously.
4) Adding a lubricant:
grease is added between the ball head and the resin to realize the lubrication of the ball head. The lubricant is used for lubricating the ball head, so that the ball head can freely rotate and has small friction.
Further, the detailed steps of manufacturing the ball stud 16 are:
a) rough machining of the ball head rod 16:
firstly, fixing the raw materials on a lathe, cutting the raw materials into shapes by using the lathe, reserving 3-5mm more than the set size of a drawing, then, finely cutting the ball head rod 16 of the initial prototype, and reserving 1-2mm according to the set size of the drawing. The rough ball machining ensures the general shape of the ball shank 16, facilitates the subsequent finish machining of the ball shank 16, and avoids the deep scrapping of rough machined parts by the cutter.
b) Finish machining of the ball head rod 16:
after the rough machining of the ball head rod 16 is finished, rounding the rod part to enable the rod part to be smooth and the size to be ground into the design size of the drawing, then locally heating the ball head, placing the ball head in a die for hot heading forming, and performing finish machining on the ball head rod 16 to ensure that the size of the ball head rod 16 is consistent with the design size of the drawing.
c) Ball rod 16 processing:
the integral ball head rod 16 is heated to 900 ℃, then the ball head rod is sent into a cooling channel for normalizing treatment, after the ball head rod 16 is cooled to 550 ℃, the ball head rod is sent into an annealing furnace for annealing treatment, after the ball head rod 16 is cooled along with the furnace, the local induction heating of the ball head is carried out for quenching treatment, and after the heat treatment of the ball head rod 16 is finished, the ball head rod 16 is placed on a processing table of a shot blasting machine for shot blasting treatment. Through heat treatment, the overall strength of the ball head rod 16 is improved, the internal stress of the ball head rod 16 is eliminated, and meanwhile, the ball head is quenched, so that the surface hardness of the ball head is improved.
The detailed steps of manufacturing the ball cup 15 are as follows:
a) roughing the ball seat 15:
the raw materials are fixed on a lathe, the shape is cut according to the design requirements of a drawing, then the feeding depth of a cutter is increased, and 1-2mm is reserved according to the design size of the drawing. The rough machining of the ball seat 15 can facilitate the subsequent finish machining of the ball seat 15, improve the machining precision of the ball seat 15 and reduce the rejection rate of coarse materials.
b) Finish machining of the ball seat 15:
fixing the roughly machined ball head seat 15 on a numerical control machine tool, inputting the size of the ball head seat 15, finely cutting the ball head seat 15, drilling an injection hole on the ball head seat 15 after cutting, communicating the injection hole with a ball head groove, and polishing the ball head seat 15. The finish machining of the ball socket 15 ensures the machining precision of the ball socket 15 and improves the production quality of the ball socket 15.
The detailed steps of the assembly processing are as follows:
a) preparation of processing:
clamping a clamping block on the ball head seat 15, then resetting the fixed assembling device, checking the running condition of the fixed assembling device, ensuring the normal running of the fixed assembling device, and then respectively fixing the ball head rod 16 and the ball head seat 15 on the fixed assembling device; the ball head seat 15 and the clamping block are connected before processing, so that the subsequent fixing of the ball head seat 15 on the fixing and assembling device can be facilitated, the fixing precision is ensured, and the production efficiency is improved.
b) Assembling the ball head rod 16 with the ball head seat 15:
the ball seat 15 is first placed in the heating ring 7, and is heated by high-frequency induction, and then the ball head of the ball head rod 16 is squeezed into the ball seat 15, and then the ball seat 15 is waited for cooling. By heating the ball socket 15, the ball socket 15 is expanded, so that the ball rod 16 can be conveniently squeezed in, and the ball rod 16 and the ball socket 15 are not easily damaged in the squeezing process.
c) Resin injection:
after the ball seat 15 is cooled, resin is injected into a cavity between the ball head and the ball seat 15 through the injection hole, and then the resin is cooled and molded. After the ball seat 15 is cooled, the resin is injected, so that the injection effect of the resin can be ensured.
d) Resetting the workpiece:
the fixing of the ball head rod 16 and the ball head seat 15 is loosened, then the ball head rod 16 is communicated with the ball head seat 15 and taken out together, and then the fixing and assembling device is reset. The workpiece resetting and fixing assembly device resetting can facilitate the subsequent assembly and processing of the ball seat 15 and improve the production efficiency.
The detailed steps of the processing preparation in the step a are as follows: checking the operation condition of the device, can be under the prerequisite of normal operating with the clamp splice 2, fixed block 9 and heating ring 7 are all reset, later sheathe connecting block 6 in the pole portion of bulb seat 15, adjust the relative position of connecting block 6 and bulb seat 15, make bulb seat 15 level place, the bottom of connecting block 6 also is the level and places, later screw up the screw of connecting block 6 makes connecting block 6 and the pole portion fixed connection of bulb seat 15, it is also in the level state of placing to guarantee that bulb seat 15 is also in the level when the bottom of connecting block 6 can the level place, place bulb seat 15 on base 1 in flatly, later clamp splice cylinder 3 starts, the bellying on the clamp splice 2 aims at the recess of connecting block 6, clamp splice 2 presss from both sides tight connecting block 6, the start of fixed block 9 cylinder, the tight bulb pole 16 of fixed block 9 clamp. Through the setting of connecting block 6, realize the quick location of bulb seat 15, the centre gripping of the bulb seat 15 of being convenient for when guaranteeing the precision of the 15 centre gripping of bulb seat, also can improve clamping speed, shortens the processing required time.
Step b the detailed steps of assembling the ball stud 16 and the ball socket 15 are as follows: the clamping block seat air cylinder 5 is started to drive the clamping block seat 4 to move upwards to drive the ball seat 15 to move upwards, the heating ring air cylinder 8 is started to drive the heating ring 7 to move transversely to the ball seat 15 to move out, the heating ring 7 is started to heat the ball seat 15, after the heating of the ball seat 15 is finished, the heating ring 7 returns, the clamping block seat air cylinder 5 moves downwards, the positioning block air cylinder 14 is started to drive the positioning block air cylinder 14 to clamp the ball seat 15, the fixing seat air cylinder 12 is started to push the fixing block 9 downwards, and therefore the ball head rod 16 on the fixing block 9 is pushed into the ball seat 15. The ball head seat 15 moves upwards, the ball head seat 15 is inductively heated through the heating ring 7, then the ball head rod 16 is fixed on the base 1, the precision of the ball head seat 15 is guaranteed, and finally the ball head rod 16 is pressed downwards and squeezed into the ball head seat 15, so that the assembly is convenient, and the assembly effect is good.
Step c the detailed steps of resin injection are: connecting a resin injection tube to an injection hole of the ball cup 15, starting the fixed seat cylinder 12, adjusting the position of the ball rod 16 to ensure a cavity between the ball rod 16 and the ball cup 15, injecting resin into the cavity, stopping injection when the surface height of the resin is consistent with the top height of the ball cup 15, separating the injection tube when the resin is dry, and removing redundant resin at the bottom of the injection hole and redundant resin at the top of the ball cup 15. The ball head rod 16 and the ball head seat 15 are fixed, the resin injection effect is improved, the resin uniformity is ensured, and the service life of the ball head seat 15 is prolonged.
The present invention is made using 1) a ball-end shaft 16; 2) manufacturing a ball socket 15; 3) integrally assembling and processing; 4) the lubricant is added in four steps, so that the process steps of the tie rod ball head can be simplified, the assembly precision of the ball head seat 15 and the ball head rod 16 is improved, the time required by production is saved, and the production efficiency is improved. Through the cooperation of fixed assembly device, can not assemble bulb seat 15 and bulb pole 16 fast, damage when reducing bulb seat 15 and the equipment of bulb pole 16 can guarantee the precision when assembling simultaneously, improves the even degree of injection resin, improves the quality of pull rod bulb, prolongs the life of pull rod bulb.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (1)
1. The manufacturing method of the pull rod ball head for the automobile is characterized by comprising the following steps: 1) Manufacturing a ball head rod: a) Roughly machining a ball head rod: fixing the raw materials on a lathe, cutting the raw materials into a shape by using the lathe, reserving the shape by 3-5mm more than the set size of a drawing, then finely cutting the ball head rod of the initial prototype, and reserving the size by 1-2mm according to the set size of the drawing; b) Finish machining of the ball head rod: after the rough machining of the ball head rod is finished, rounding the rod part to enable the rod part to be smooth and the size to be ground into the design size of a drawing, then locally heating the ball head, and placing the ball head in a die for hot heading forming; c) Ball head rod treatment: heating the whole ball head rod to 900 ℃, then sending the ball head rod into a cooling channel for normalizing treatment, sending the ball head rod into an annealing furnace for annealing treatment after the ball head rod is cooled to 550 ℃, locally induction heating the ball head and quenching treatment after the ball head rod is cooled along with the furnace, and placing the ball head rod on a processing table of a shot blasting machine for shot blasting treatment after the heat treatment of the ball head rod is finished; 2) Manufacturing a ball socket: a) Roughly machining a ball head seat: fixing the raw materials on a lathe, cutting into shapes according to the design requirements of a drawing, then increasing the feeding depth of a cutter, and reserving 1-2mm more according to the design size of the drawing; b) Finish machining of the ball socket: fixing the roughly machined ball head seat on a numerical control machine tool, inputting the size of the ball head seat, finely cutting the ball head seat, drilling an injection hole in the ball head seat after cutting, communicating the injection hole with a ball head groove, and polishing the ball head seat; 3) And (4) integral assembly and processing: a) Preparation of processing: checking the operation condition of the fixed assembly device, resetting all the clamping blocks, the fixed blocks and the heating rings on the premise that the fixed assembly device can normally operate, installing the heating rings on the ball seat, then sleeving the connecting blocks on the rod part of the ball seat, adjusting the relative positions of the connecting blocks and the ball seat to enable the ball seat to be horizontally placed, horizontally placing the bottom of the connecting blocks, then screwing screws of the connecting blocks to enable the connecting blocks to be fixedly connected with the rod part of the ball seat, ensuring that the ball seat is also horizontally placed while the bottom of the connecting blocks can be horizontally placed, horizontally placing the ball seat on the base, starting the clamping block cylinder, aligning the protrusions on the clamping blocks with the grooves of the connecting blocks, clamping the connecting blocks by the clamping blocks, starting the fixed block cylinder, and clamping the ball rod by the fixed blocks; b) Assembling the ball head rod and the ball head seat: the clamping block seat cylinder is started to drive the clamping block seat to move upwards and drive the ball head seat to move upwards, then the heating ring cylinder is started to drive the heating ring to transversely move to the ball head seat, then the heating ring is started to heat the ball head seat, after the ball head seat is heated, the heating ring returns, the clamping block seat cylinder descends, then the positioning block cylinder is started to drive the positioning block to clamp the ball head seat, and then the fixing seat cylinder is started to push the fixing block downwards so that a ball head rod on the fixing block is pushed into the ball head seat; c) Resin injection: connecting a resin injection tube to an injection hole of a ball head seat, starting a fixed seat cylinder, adjusting the position of a ball head rod, ensuring a cavity between the ball head rod and the ball head seat, injecting resin into the cavity, stopping injection when the height of the surface of the resin is consistent with that of the top surface of the ball head seat, separating the injection tube when the resin is dry, and removing redundant resin at the bottom of the injection hole and redundant resin at the top of the ball head seat; d) Resetting the workpiece: loosening the fixing of the ball head rod and the ball head seat, then taking out the ball head rod together with the ball head seat, and then resetting the fixing and assembling device; 4) Adding a lubricant: lubricating grease is added between the ball head and the resin to realize the lubrication of the ball head.
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| CN202110847802.6A CN113458735B (en) | 2021-07-27 | 2021-07-27 | Method for manufacturing pull rod ball head for automobile |
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| CN202110847802.6A CN113458735B (en) | 2021-07-27 | 2021-07-27 | Method for manufacturing pull rod ball head for automobile |
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| US4459900A (en) * | 1981-07-06 | 1984-07-17 | Deere & Company | Heat insulated piston assembly and method of assembling |
| CN107696396A (en) * | 2017-11-06 | 2018-02-16 | 吉安汽车配件(苏州)有限公司 | A kind of manufacturing process of ball-head tension rod component |
| CN109047602A (en) * | 2018-08-24 | 2018-12-21 | 森冈精机（南通）有限公司 | The upsetting pressure technique of ball stud upsetting pressure molding die and ball stud |
| CN110587222A (en) * | 2019-09-09 | 2019-12-20 | 株洲时代新材料科技股份有限公司 | Automobile thrust rod hot riveting positioning method and tool |
| CN112846727A (en) * | 2021-04-26 | 2021-05-28 | 宁波晠昊金属制造有限公司 | Press-fitting machine for automobile elbow and ball head |
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| CN113458735A (en) | 2021-10-01 |
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