CN110814665A - Production process of hinge shaft - Google Patents
Production process of hinge shaft Download PDFInfo
- Publication number
- CN110814665A CN110814665A CN201911165332.4A CN201911165332A CN110814665A CN 110814665 A CN110814665 A CN 110814665A CN 201911165332 A CN201911165332 A CN 201911165332A CN 110814665 A CN110814665 A CN 110814665A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- blank
- hinge shaft
- namely
- die
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
- B24B5/045—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally with the grinding wheel axis perpendicular to the workpiece axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/083—Deburring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a production process of a hinge shaft, belonging to the technical field of forging processing, and comprising the following steps of: step S1: cutting, namely cutting the round steel by using a band sawing machine to cut the round steel into a cylindrical blank; step S2: heating, namely placing the blank in a heating furnace for heating, so that the temperature of the blank is higher than the recrystallization temperature and lower than the temperature of a solidus line; step S3: free forging, namely upsetting the heated blank by using a press machine, and then punching the blank by using a punch; step S4: die forging, namely placing the punched blank in a forging die, and performing die forging on the blank by using a press; step S5: removing excess materials, placing the blank in a flash removing die, and then punching off the flash by using a press machine; step S6: and rough turning, namely performing rough turning on the inner hole of the blank, the two axial end faces of the inner hole and the excircle of the shaft at the two ends of the workpiece in sequence. The invention has the effect of improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of forging processing, in particular to a production process of a hinge shaft.
Background
The hinge shaft is a mounting mode of a hydraulic steel, the hydraulic cylinder can swing after mounting, and the hinge shaft is generally produced by adopting a forging process because the center of the structure is provided with a larger center hole, belongs to a ring-shaped part similar to a flange and bears higher pressure.
At present, the chinese patent application with publication number CN104550594A discloses a forging process of a bearing hinge shaft, which comprises the following steps: chamfering one end of a steel ingot blank, pressing a dead head at the other end to be a clamp handle, cutting off redundant length, cutting a water gap, and deburring; filling the blank into a drain pan for upsetting; taking out the blank, pressing a square chamfer and drawing out a octagonal round; pulling a rod, forging steps at two ends to a designed size, and then placing the two ends into a die for upsetting; flattening both ends, repeatedly folding the two ends in eight directions, and punching holes on both sides by using a punch; the horse stick is beneficial to reaming twice; flattening two end faces to enable the thickness to reach the design size, and filling a round inner hole with a punch for flattening; and (5) performing heat treatment after the measured size is qualified.
The above prior art solutions have the following drawbacks: utilize the horse stick to carry out the reaming, need beat the hinge repeatedly, so need carry out the reheating of going back the stove sometimes because consuming time overlength, and then lead to production efficiency low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hinge shaft production process and production efficiency.
The above object of the present invention is achieved by the following technical solutions: a hinge shaft production process comprises the following steps: step S1: cutting, namely cutting the round steel by using a band sawing machine to cut the round steel into a cylindrical blank; step S2: heating, namely placing the blank in a heating furnace for heating, so that the temperature of the blank is higher than the recrystallization temperature and lower than the temperature of a solidus line; step S3: free forging, namely upsetting the heated blank by using a press machine, and then punching the blank by using a punch; step S4: die forging, namely placing the punched blank in a forging die, and performing die forging on the blank by using a press; step S5: removing excess materials, placing the blank in a flash removing die, and then punching off the flash by using a press machine; step S6: and rough turning, namely performing rough turning on the inner hole of the blank, the two axial end faces of the inner hole and the excircle of the shaft at the two ends of the workpiece in sequence.
By adopting the technical scheme, the blank is punched firstly, and then the blank is directly pressed in the forging die by using a die forging mode, so that the forming of a workpiece is realized, the repeated use of a feed bar for reaming is not needed, and the repeated returning and heating are also not needed, thereby greatly shortening the time consumed in production and improving the production efficiency.
The present invention in a preferred example may be further configured to: further comprising step S7: performing primary shot blasting, namely performing shot blasting treatment on the workpiece by using a shot blasting machine; step S8: trimming, namely trimming the outer circle of the workpiece by using a grinding wheel to remove the fracture marks left by the flash; step S9: performing secondary shot blasting, namely performing shot blasting treatment on the workpiece again by using a shot blasting machine; step S10: and (4) finish turning, namely finish turning the shaft excircle, the hinge inner hole and the axis end face of the hinge inner hole at two ends of the hinge shaft in sequence.
By adopting the technical scheme, the outer oxide skin of the workpiece is removed by one-time shot blasting, so that the broken marks generated by removing the flash can be seen more clearly, and the subsequent required finishing process is facilitated. And internal stress generated at the time of forging can be released.
The present invention in a preferred example may be further configured to: in step S2, the blank is heated by a natural gas heating furnace at 1180-1220 ℃ for 2 hours.
By adopting the technical scheme, the blank is sufficiently heated, so that the temperature of the blank can be close to the solidus temperature.
The present invention in a preferred example may be further configured to: the deburring die in the step S5 comprises a lower die and an upper die, wherein the lower die comprises a blanking groove with the same workpiece appearance, the blanking groove is coaxially provided with a circular blanking hole, the diameter of the blanking hole is larger than that of a workpiece center hole, the diameter of the blanking hole is smaller than that of a workpiece excircle, the upper die comprises a first punch and a second punch which are coaxially and fixedly connected, the first punch is in clearance fit with the workpiece center hole, and the outer diameter of the second punch is equal to that of the workpiece excircle.
Through adopting above-mentioned technical scheme, prevent to send the work piece on the lower mould and be located the charging chute, because the existence of overlap, the overlap can be contradicted in the upper surface of lower mould, thereby make the work piece unsettled in the charging chute, start the press, utilize the press to drive the mould rebound, first drift is contradicted in the even skin of work piece centre bore department, even skin is washed off, then go up the mould and continue the rebound, the second drift is contradicted on the work piece, make the work piece rebound, thereby make work piece and overlap separation, the overlap is stayed the upper surface of lower mould, the work piece falls into the charging chute, the separation of overlap and work piece has been made.
The present invention in a preferred example may be further configured to: the lower mould lateral wall has seted up the blown down tank, the blown down tank communicates with the charging chute.
By adopting the technical scheme, the workpiece after the flash removal can be taken out from the discharge chute, so that the workpiece can be taken out conveniently.
The present invention in a preferred example may be further configured to: in step S6, the inner circle of the workpiece is turned with the outer circle of the workpiece as a reference, the axial end face of the inner circle of the workpiece is turned with the inner circle as a reference, the shaft end faces at the two ends of the hinge shaft are milled flat with the inner circle of the workpiece as a reference, and the shaft end faces at the two ends of the hinge shaft are used as processing positioning holes.
By adopting the technical scheme, the position of the positioning hole is more accurate, a reliable foundation is increased for the finish machining needed later, the amount of turning needed is smaller when the workpiece needs to be machined by the positioning hole later, and the machining efficiency is improved.
The present invention in a preferred example may be further configured to: in step S8, the outer circle of the workpiece is trimmed by the hand wheel to remove the fracture left after trimming.
Since the burrs are cut by the shearing force generated by the die and the punch, the burrs are cut or broken, and therefore, a fracture mark is left on the surface of the die after the burrs are removed, thereby affecting the appearance of the product. By adopting the technical scheme, the oxide skin on the surface of the workpiece is removed by one-time shot blasting, so that the broken marks of the flash are more clear and visible, the outer circle of the workpiece is conveniently trimmed by a worker through a hand wheel, and the broken marks left after the flash is removed are removed.
The present invention in a preferred example may be further configured to: in step S10, the outer circles of the shaft shafts at both ends of the hinge shaft are turned with the positioning holes as references, the inner circle of the workpiece is turned with the outer circles of the shaft shafts at both ends of the hinge shaft as references, and then the end face of the workpiece is cut with the inner circle of the workpiece as a reference.
By adopting the technical scheme, the inner circle and the end face of the workpiece are processed by taking the positioning hole as a reference, and the size of the workpiece meets the requirement better.
The present invention in a preferred example may be further configured to: step S7 of trimming, namely, mounting the workpiece on a trimming device, and removing the fracture marks left by the flash; step S8: performing shot blasting, namely performing shot blasting treatment on the workpiece again by using a shot blasting machine; step S9: and (4) finish turning, namely finish machining is carried out on the shaft excircle of the two ends of the hinge shaft, the inner hole of the hinge shaft and the axial line end face of the inner hole of the hinge shaft in sequence.
By adopting the technical scheme, the descaling of the workpiece is performed by one shot blasting without utilization, the outer circle of the workpiece can be directly trimmed by using the trimming device, the process is simplified, and the production efficiency is improved.
The present invention in a preferred example may be further configured to: the trimming device comprises a rack, a three-jaw chuck is rotatably connected to the rack, a grinding chip structure is horizontally and slidably connected to the rack, the grinding chip structure comprises two sliding seats and two sliding directions of the sliding seats, the sliding directions of the sliding seats are parallel to each other and all pass through the circle center of the three-jaw chuck, a grinding wheel is rotatably connected to the sliding seats, and a driving motor for driving the grinding wheel to rotate is fixedly connected to the sliding seats.
Through adopting above-mentioned technical scheme, thereby utilize three-jaw chuck to contradict in the work piece circle with the work piece fixed, then start driving motor, utilize driving motor to drive the emery wheel and rotate, then remove the sliding block and make the emery wheel contradict in the work piece and carry out the grinding to the excircle surface of work piece to the excircle of work piece is maintained.
In summary, the invention includes at least one of the following beneficial technical effects:
firstly, the blank is directly pressed into a forging die by using a die forging mode, so that the forming of a workpiece is realized, the hole expansion by using a horse bar for multiple times is not needed, and the repeated furnace return heating is also not needed, so that the time consumed during production is greatly shortened;
secondly, the oxide skin on the outer layer of the workpiece is removed by one-time shot blasting, so that the fracture marks generated by deburring can be seen more clearly, the subsequent required finishing process is facilitated, the fracture marks generated by deburring are removed, and the workpiece is more attractive;
and thirdly, the manual trimming is replaced by the trimming device, so that the step of shot blasting is omitted, the process is simplified, and the production efficiency is improved.
Drawings
FIG. 1 is a flowchart of example 1;
FIG. 2 is a schematic structural view showing a deflashing mold according to example 1;
FIG. 3 is a flowchart of example 2;
fig. 4 is a schematic structural view for showing a trimming device in example 2.
Reference numerals: 100. removing the flash die; 101. a lower die; 102. an upper die; 103. a charging chute; 104. a blanking hole; 105. a first punch; 106. a second punch; 107. a discharge chute; 200. a dressing device; 201. a frame; 202. a three-jaw chuck; 203. a structure of abrasive dust; 204. an operating lever; 205. a sliding seat; 206. a grinding wheel; 207. a drive motor; 208. a bidirectional lead screw; 209. and an operating wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1, the production process of a hinge shaft disclosed by the invention comprises the following steps:
step S1: and cutting, namely cutting the round steel by using a band sawing machine to cut the round steel into a plurality of blanks. The weight of each blank is 1.05-1.15 times of the weight of the qualified hinge shaft.
Step S2: heating, namely placing the blank in a heating furnace for heating. The heating furnace is a natural gas furnace, the internal temperature of the natural gas heating furnace is 1180-1220 ℃, and the blank is placed in the heating furnace to be heated for two hours, so that the temperature of the blank is close to but not higher than the temperature of the solidus line of the blank.
And a step S3 of free forging, in which the heated blank is upset by a press machine to increase the diameter and shorten the length of the blank.
Step S4: and die forging, namely placing the upset blank in a hinge shaft forging die, and then carrying out die forging on the blank by using a friction press to form the blank into a hinge shaft workpiece. The outer edge of the workpiece after die forging has flash, and the position of the central hole has connecting skin.
Step S5: and (3) removing excess materials, placing the blank in a flash removing die 100, and then punching off the flash and the connected skin by using a press machine.
As shown in fig. 2, the deflashing mold 100 includes a lower mold 101 and an upper mold 102. The lower die 101 comprises a blanking groove 103 with the same workpiece appearance, the blanking groove 103 is coaxially provided with a circular blanking hole 104, the diameter of the blanking hole 104 is larger than that of a central hole of the workpiece, and the diameter of the blanking hole 104 is smaller than that of an excircle of the workpiece. The upper die 102 comprises a first punch 105 and a second punch 106 which are coaxially and fixedly connected, the first punch 105 is in clearance fit with a central hole of a workpiece, and the outer diameter of the second punch 106 is equal to the outer diameter of the workpiece. The workpiece is placed on the lower die 101 and within the charging chute 103. Because of the existence of the flash, the flash will collide with the upper surface of the lower mold 101, so that the workpiece is suspended in the blanking slot 103. And starting the press machine, driving the upper die 102 to move downwards by using the press machine, enabling the first punch 105 to abut against the connected skin at the central hole of the workpiece, punching the connected skin, then continuing to move downwards by using the upper die 102, and enabling the second punch 106 to abut against the workpiece to move downwards, so that the workpiece is separated from the flash. The flash remains on the upper surface of the lower die 101, and the workpiece falls into the chute 103, so that the flash and the workpiece are separated.
In order to conveniently take out the workpiece in the blanking groove 103, the side wall of the lower die 101 is provided with a discharge groove 107, the discharge groove 107 is communicated with the blanking groove 103, and the workpiece after deburring can be taken out from the discharge groove 107.
Step S6: rough turning, namely roughly turning the workpiece, clamping the excircle of the workpiece by using a lathe fixture, and turning the inner circle of the workpiece and two end faces of the axis of the inner circle. Then the workpiece is mounted on a fixture of the double-head milling machine, and then the workpiece is calibrated so that the workpiece and two main shafts of the double-head milling machine are coaxially arranged. And milling the end surfaces of the two end shafts of the hinge shaft by using a double-head milling machine. Then the hinge shaft is arranged on the double-head rotating bed, and positioning holes are drilled in the end surfaces of the two end shafts of the hinge shaft by taking the end surfaces of the two end shafts of the hinge shaft as a reference. And finally, turning the outer circles of the shafts at the two ends of the hinge shaft by taking the positioning holes as the reference.
Step S7: the workpiece is placed in the shot blasting machine in a primary shot blasting mode, shot blasting treatment is carried out on the workpiece by the shot blasting machine to remove oxide skin on the surface of the workpiece, broken marks generated by deburring can be seen more clearly, a required finishing process is facilitated, and internal stress generated during forging can be released.
Step S8: and (4) trimming, wherein after the primary shot blasting, oxide skin on the surface of the workpiece is removed, so that the broken marks of the flash are more clearly visible, a worker can conveniently trim the outer circle of the workpiece by using a hand wheel, and the broken marks left after the flash is removed are removed.
Step S9: and performing secondary shot blasting, namely placing the workpiece in a shot blasting machine, performing shot blasting treatment on the workpiece again by using the shot blasting machine, and removing the trace left after finishing.
Step S10: and finish turning, namely finish turning the workpiece. Turning the excircle of the two end shafts of the hinge shaft of the workpiece by using a lathe, and taking the positioning hole as a reference. Then the excircle of the shaft at the two ends of the hinge shaft is used as a reference to turn the center hole of the hinge shaft. And finally, turning two end surfaces of the inner circle axis of the hinge shaft by taking the center hole of the hinge shaft as a reference.
Example two: the invention discloses a hinge shaft production process, which is different from the first embodiment in that a shot blasting step is removed, and then a workpiece is trimmed by a trimming device 200, and the process is characterized in that:
as shown in FIG. 3, steps S1 to S6 are the same as those of the first embodiment.
Step S7: trimming, the workpiece is mounted on the trimming device 200, and the trimming device 200 is used to remove the fracture marks left by deburring on the workpiece.
As shown in fig. 4, the dressing apparatus 200 includes a frame 201, and a three-jaw chuck 202 is rotatably connected to the frame 201, and the three-jaw chuck 202 abuts against an inner circle of the workpiece to fix the workpiece. The frame 201 is horizontally connected with a grinding structure 203 in a sliding mode, and the outer wall of a workpiece is ground by the grinding structure 203.
As shown in fig. 4, a horizontally disposed operating rod 204 is fixedly connected to the three-jaw chuck 202, and the operating rod 204 is used to control the rotation of the three-jaw chuck 202, so as to drive the workpiece to rotate.
As shown in fig. 4, the abrasive dust structure 203 includes two sliding seats 205 slidably connected to the frame 201, and the sliding directions of the two sliding seats 205 are parallel and both pass through the center of the three-jaw chuck 202. The sliding seat 205 is rotatably connected with a grinding wheel 206, and the sliding seat 205 is fixedly connected with a driving motor 207 for driving the grinding wheel 206 to rotate. The rack 201 is rotatably connected with a bidirectional screw 208, two ends of the bidirectional screw 208 are respectively connected with the two sliding seats 205 in a threaded manner, and the two sliding seats 205 can move in opposite directions by rotating the bidirectional screw 208. One end of the bidirectional screw 208 is coaxially and fixedly connected with an operating wheel 209. Utilize three-jaw chuck 202 to contradict thereby fixed the work piece in the work piece inner circle, then start driving motor 207, utilize driving motor 207 to drive emery wheel 206 and rotate, then rotate operation wheel 209, make two-way lead screw rotate and make two sliding seats 205 be close to each other, emery wheel 206 contradicts and grinds in the excircle surface of work piece to the work piece, thereby maintain the excircle of work piece, utilize action bars 204 to rotate three-jaw chuck 202 at last, make it drive the work piece and rotate, thereby maintain the outer wall of work piece.
Step S8: and (4) shot blasting, namely placing the workpiece in a shot blasting machine, and performing shot blasting treatment on the workpiece by using the shot blasting machine to remove traces left by finishing and surface oxide skin.
Step S9: and finish turning, namely finish turning the workpiece. Turning the excircle of the two end shafts of the hinge shaft of the workpiece by using a lathe, and taking the positioning hole as a reference. Then the excircle of the shaft at the two ends of the hinge shaft is used as a reference to turn the center hole of the hinge shaft. And finally, turning two end surfaces of the inner circle axis of the hinge shaft by taking the center hole of the hinge shaft as a reference.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A hinge shaft production process comprises the following steps: step S1: cutting, namely cutting the round steel by using a band sawing machine to cut the round steel into a cylindrical blank; step S2: heating, namely placing the blank in a heating furnace for heating, so that the temperature of the blank is higher than the recrystallization temperature and lower than the temperature of a solidus line; step S3: free forging, namely upsetting the heated blank by using a press machine, and then punching the blank by using a punch; step S4: die forging, namely placing the punched blank in a forging die, and performing die forging on the blank by using a press; step S5: removing excess materials, placing the blank in a flash removing die (100), and then punching off the flash by using a press machine; step S6: and rough turning, namely performing rough turning on the inner hole of the blank, the two axial end faces of the inner hole and the excircle of the shaft at the two ends of the workpiece in sequence.
2. A process for producing a hinge shaft according to claim 1, wherein: further comprising step S7: performing primary shot blasting, namely performing shot blasting treatment on the workpiece by using a shot blasting machine; step S8: trimming, namely trimming the outer circle of the workpiece by using a grinding wheel (206) to remove the fracture marks left by the flash; step S9: performing secondary shot blasting, namely performing shot blasting treatment on the workpiece again by using a shot blasting machine; step S10: and (4) finish turning, namely finish turning the shaft excircle, the hinge inner hole and the axis end face of the hinge inner hole at two ends of the hinge shaft in sequence.
3. A process for producing a hinge shaft according to claim 2, wherein: in step S2, the blank is heated by a natural gas heating furnace at 1180-1220 ℃ for 2 hours.
4. A process for producing a hinge shaft according to claim 3, wherein: the deburring die (100) in the step S5 comprises a lower die (101) and an upper die (102), wherein the lower die (101) comprises a blanking groove (103) with the same workpiece appearance, a circular blanking hole (104) is coaxially arranged in the blanking groove (103), the diameter of the blanking hole (104) is larger than that of a workpiece center hole, the diameter of the blanking hole (104) is smaller than that of a workpiece excircle, the upper die (102) comprises a first punch (105) and a second punch (106) which are coaxially and fixedly connected, the first punch (105) is in clearance fit with the workpiece center hole, and the outer diameter of the second punch (106) is equal to that of the workpiece excircle.
5. The process for producing a hinge shaft according to claim 4, wherein: a discharge chute (107) is formed in the side wall of the lower die (101), and the discharge chute (107) is communicated with the charging chute (103).
6. The process for producing a hinge shaft according to claim 5, wherein: in step S6, the inner circle of the workpiece is turned with the outer circle of the workpiece as a reference, the axial end face of the inner circle of the workpiece is turned with the inner circle as a reference, the shaft end faces at the two ends of the hinge shaft are milled flat with the inner circle of the workpiece as a reference, and the shaft end faces at the two ends of the hinge shaft are used as processing positioning holes.
7. A process for producing a hinge shaft according to claim 6, wherein: in step S8, the outer circle of the workpiece is trimmed by the hand wheel to remove the fracture left after trimming.
8. A process for producing a hinge shaft according to claim 7, wherein: in step S10, the outer circles of the shaft shafts at both ends of the hinge shaft are turned with the positioning holes as references, the inner circle of the workpiece is turned with the outer circles of the shaft shafts at both ends of the hinge shaft as references, and then the end face of the workpiece is cut with the inner circle of the workpiece as a reference.
9. A process for producing a hinge shaft according to claim 1, wherein: the method further comprises the step of S7 finishing, wherein the workpiece is arranged on a finishing device (200), and the fracture mark left by the flash is removed; step S8: performing shot blasting, namely performing shot blasting treatment on the workpiece again by using a shot blasting machine; step S9: and (4) finish turning, namely finish machining is carried out on the shaft excircle of the two ends of the hinge shaft, the inner hole of the hinge shaft and the axial line end face of the inner hole of the hinge shaft in sequence.
10. A process for producing a hinge shaft according to claim 9, wherein: trimming means (200) includes frame (201), it is connected with three-jaw chuck (202) to rotate on frame (201), frame (201) horizontal sliding connection has abrasive dust structure (203), abrasive dust structure (203) are including sliding connection in two of frame (205) slide seat (205), two slide seat (205) the slip direction be parallel arrangement and all pass through the centre of a circle of three-jaw chuck (202), slide seat (205) go up to rotate and be connected with emery wheel (206), fixedly connected with drive emery wheel (206) pivoted driving motor (207) on slide seat (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165332.4A CN110814665B (en) | 2019-11-25 | 2019-11-25 | Production process of hinge shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165332.4A CN110814665B (en) | 2019-11-25 | 2019-11-25 | Production process of hinge shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110814665A true CN110814665A (en) | 2020-02-21 |
| CN110814665B CN110814665B (en) | 2021-07-20 |
Family
ID=69558958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165332.4A Active CN110814665B (en) | 2019-11-25 | 2019-11-25 | Production process of hinge shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110814665B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050238509A1 (en) * | 2004-04-22 | 2005-10-27 | Lee Po T | Clutch suction disk for air compressor of vehicle air conditioner |
| CN104550594A (en) * | 2015-01-14 | 2015-04-29 | 重庆焱炼重型机械设备股份有限公司 | Supporting hinged shaft forging technology |
| CN105328096A (en) * | 2015-11-14 | 2016-02-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Forming method of die forging clamps made of titanium alloy |
| CN106111862A (en) * | 2016-08-29 | 2016-11-16 | 中航动力股份有限公司 | A kind of forging method of GH4901 sleeve spacer ring |
| CN206169143U (en) * | 2016-10-26 | 2017-05-17 | 重庆琪扬汽车配件有限公司 | Semi -axis flange overlap hot cutting device |
| CN106734845A (en) * | 2017-01-18 | 2017-05-31 | 南京工程学院 | A kind of precise forming process of brake disc of high-speed train |
| CN108421951A (en) * | 2018-03-23 | 2018-08-21 | 韶关市中机重工股份有限公司 | EMU driving device wheel hub forging mold and its production technology |
| CN108581078A (en) * | 2018-07-23 | 2018-09-28 | 重庆大学 | Planar double enveloping worm flank of tooth double-side grinding lathe based on the virtual centre of gyration |
| CN209062056U (en) * | 2018-11-14 | 2019-07-05 | 四川众友机械有限责任公司 | It is a kind of for automate forging and stamping right angle bevel gear shaving die |
-
2019
- 2019-11-25 CN CN201911165332.4A patent/CN110814665B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050238509A1 (en) * | 2004-04-22 | 2005-10-27 | Lee Po T | Clutch suction disk for air compressor of vehicle air conditioner |
| CN104550594A (en) * | 2015-01-14 | 2015-04-29 | 重庆焱炼重型机械设备股份有限公司 | Supporting hinged shaft forging technology |
| CN105328096A (en) * | 2015-11-14 | 2016-02-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Forming method of die forging clamps made of titanium alloy |
| CN106111862A (en) * | 2016-08-29 | 2016-11-16 | 中航动力股份有限公司 | A kind of forging method of GH4901 sleeve spacer ring |
| CN206169143U (en) * | 2016-10-26 | 2017-05-17 | 重庆琪扬汽车配件有限公司 | Semi -axis flange overlap hot cutting device |
| CN106734845A (en) * | 2017-01-18 | 2017-05-31 | 南京工程学院 | A kind of precise forming process of brake disc of high-speed train |
| CN108421951A (en) * | 2018-03-23 | 2018-08-21 | 韶关市中机重工股份有限公司 | EMU driving device wheel hub forging mold and its production technology |
| CN108581078A (en) * | 2018-07-23 | 2018-09-28 | 重庆大学 | Planar double enveloping worm flank of tooth double-side grinding lathe based on the virtual centre of gyration |
| CN209062056U (en) * | 2018-11-14 | 2019-07-05 | 四川众友机械有限责任公司 | It is a kind of for automate forging and stamping right angle bevel gear shaving die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110814665B (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8313357B2 (en) | Method for the production of a workpiece and grinding machine | |
| KR100572346B1 (en) | Method for producing steel rolling bearing rings | |
| CN104227345A (en) | Processing method for high-precision thin step shaft and grinding chuck for processing method | |
| CN105033566A (en) | Thin-wall thin-bottom product machining method suitable for numerical control machine tool | |
| CN109926894A (en) | Turbine disc mortise form grinding process equipment and its application method | |
| CN103357974B (en) | A kind of adjustable corrugated thread processing unit (plant) and method | |
| CN111421310A (en) | Efficient machining process for crankshaft | |
| JP4604122B2 (en) | Re-polishing method | |
| CN102494042B (en) | Method for manufacturing constant velocity universal joint maintaining rack | |
| CN105689612A (en) | Near-net forming forging method for novel straight-tooth bevel gear tooth-profile die | |
| WO2015021515A2 (en) | Method and machine tool for manufacturing a screw rotor of a compressor, an expander of the like | |
| CN110814665B (en) | Production process of hinge shaft | |
| CN108941709A (en) | A kind of anti-milling method of cutter for numerically-controlled machine tool | |
| CN111299967B (en) | Processing method of metal spiral rib | |
| CN204487262U (en) | A kind of machine tool chip removal device | |
| CN103920936B (en) | Large gear adhesive belt tooth grinding machine | |
| CN103272949B (en) | Machining method for female die with stepped holes | |
| CN102729020A (en) | Method for machining cutter and dedicated mold | |
| CN108637383A (en) | A kind of saw blade flute profile processing method | |
| CN100493823C (en) | Processing method of full-grinding twist drill after plastic deformation, and machining and positioning apparatus | |
| CN112059565B (en) | Precision manufacturing method of high-strength stainless steel thin-wall bevel gear | |
| CN105773094A (en) | Production process for roller shear blade spacer bush | |
| CN108067664B (en) | A kind of milling plane processing method | |
| CN111791033A (en) | Thin plate ratchet wheel machining method | |
| CN204673291U (en) | A kind of lathe supporting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |