CN114571188A - Processing method of fork frame type structural part product - Google Patents
Processing method of fork frame type structural part product Download PDFInfo
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- CN114571188A CN114571188A CN202210207281.2A CN202210207281A CN114571188A CN 114571188 A CN114571188 A CN 114571188A CN 202210207281 A CN202210207281 A CN 202210207281A CN 114571188 A CN114571188 A CN 114571188A
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- bar stock
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- fork frame
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- 238000003672 processing method Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 35
- 238000000227 grinding Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000007689 inspection Methods 0.000 claims abstract description 7
- 230000032683 aging Effects 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 239000006104 solid solution Substances 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims description 27
- 238000003801 milling Methods 0.000 claims description 27
- 238000005520 cutting process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 4
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000009659 non-destructive testing Methods 0.000 claims description 3
- 230000035882 stress Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 22
- 239000000243 solution Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Factory Administration (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a method for processing a fork frame type structural part product, which relates to the technical field of mechanical manufacturing and aims at solving the problems that in the existing method for processing the fork frame type structural part product, because no special clamp is used during processing, a small surface is used as a support for grinding, the size of the processing process is ensured to be unstable, the out-of-tolerance condition happens frequently, the quality state is unstable, the repair rate of parts is high, the rejection rate is high, and the use effect is poor, and the following scheme is provided and comprises the following steps: s1: receiving the bar stock; s2: the first step of turning: primarily turning the outer circle in the positive S1; s3: centerless grinding: polishing the excircle of the bar stock in the S2, so that the next process can be conveniently carried out; s4: ultrasonic inspection; s5: solid solution aging: and enabling the bar stock in the S4 to reach the heat treatment requirement. The invention solves the deformation problem that the fork opening is sunken inwards after the part is cut, has high part processing qualification rate, ensures the product quality, has good user experience and is worthy of popularization.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a machining method of a fork frame type structural part product.
Background
The fork frame type parts comprise parts such as levers, connecting rods, rockers, shifting forks, brackets, bearing seats and the like, and mainly play a role in operation, connection or support in machines or equipment; the fork is a control piece, other parts are controlled to shift, and the movement of the fork is the same as that of a clothes rack controlled by a clothes fork when clothes are aired; the shelf is a support for supporting other parts; most fork frame parts are irregular in shape and complex in structure, blanks are castings, and the fork frame parts are processed through multiple procedures and generally can be divided into a working part, a connecting part and a supporting part, and the working part and the supporting part are more in detailed structure, such as round holes, screw holes, oil grooves, oil holes, bosses, pits and the like; the connecting part is mostly of a ribbed plate structure, and the shape of the connecting part is bent and skewed. In order to process products meeting design requirements and high in qualification rate, a method for processing a fork frame type structural component product is urgently needed.
However, in the existing machining method for the fork frame type structural part product, no special clamp is used during machining, the small surface is used as a support for grinding, the dimension guarantee in the machining process is unstable, the out-of-tolerance condition is generated occasionally, the quality state is unstable, the repair rate of parts is high, the rejection rate is high, and the using effect is poor.
Disclosure of Invention
The invention aims to solve the defects that in the existing machining method of a fork frame type structural part product, no special clamp is used, a small surface is used as a support for grinding, the dimension in the machining process is unstable, out-of-tolerance conditions occur occasionally, the quality state is unstable, the repair rate of parts is high, the rejection rate is high, and the use effect is poor.
In order to achieve the purpose, the invention adopts the following technical scheme:
the processing method of the fork frame type structural part product comprises the following steps:
s1: receiving the bar stock;
s2: the first step of turning: primarily turning the outer circle in the positive S1;
s3: centerless grinding: polishing the excircle of the bar stock in the S2, so that the next process can be conveniently carried out;
s4: ultrasonic inspection;
s5: solid solution aging: enabling the bar stock in the S4 to reach the heat treatment requirement;
s6: counting vehicles: roughly machining the bar stock in S5;
s7: the second step is turning: processing the end face of the bar stock in S6 through a lathe to prepare for subsequent clamping;
s8: the first step of milling: milling four sides of the bar stock in S7 by a milling machine;
s9: the first step of bench work: removing burrs milled by the bar stock in the S8;
s10: grinding: grinding four sides of the bar stock in S9, ensuring the requirement of form and position tolerance and preparing for subsequent clamping reference;
s11: the second step is milling: milling a chamfer of the bar stock in S10:
s12: counting vehicles: threading the bar stock in S11 through a lathe;
s13: the third step is milling: milling two step surfaces of the bar stock in the S12;
s14: the second step is bench work: removing burrs milled by the bar material in the S13;
s15: first-step numerical milling: roughly machining and opening the bar stock in the S14 for subsequent process positioning;
s16: wire cutting: removing the allowance in the rod inserting groove of the bar in the S15, and reserving a 0.1mm allowance on the assembly surface for grinding and finish machining;
s17: thirdly, bench work: removing the inner line of the middle groove of the bar stock in the step S16, cutting the remelted layer on the surface until the luster of the metal matrix is reached, and releasing the surface stress of the part after linear cutting;
s18: second step, numerical milling: finishing the hole of the bar stock in S17;
s19: groove grinding: grinding the bar mounting plane in the S18, and using a special clamp and a measuring tool;
s20: flat grinding: finish machining the bar stock in S19 to ensure that the parallelism of the surface is 0.03mm, and designing a groove-shaped clamp, wherein the parallelism between the upper surface and the lower surface of the clamp is within 0.005 mm;
s21: wire cutting: processing the contour of the cambered surface of the appearance by using linear cutting;
s22: fourthly, bench work: removing all burrs, and chamfering sharp edges;
s23: and (6) detecting and warehousing finished products.
Preferably, the bar stock in S1 has a model GH4169 and a size of phi 28 x 315 mm.
Preferably, the part processing relates to twenty-two working procedures, wherein one working procedure is carried out on heat treatment, one working procedure is carried out on nondestructive testing, two working procedures are carried out on a special process, and thirteen sets of special tools are equipped.
Preferably, in S18, the requirement of a size of 4.2mm (+0.03, 0) is ensured.
Preferably, the ultrasonic inspection in S4 is mainly used for inspecting whether the bar stock has internal defects in S3;
preferably, in the second step of S14, the product can be marked after removing the burr by bench work.
According to the processing method of the fork frame type structural part product, the deformation reason of the thin-wall GH4169 material part processed by special processing line cutting is found out, and experience is provided for the process route arrangement of the subsequent processing of the material;
according to the processing method of the fork frame type structural part product, the problem that the clamping is difficult in the processing process of the special-shaped fork rod piece is solved, and the idea is opened for the subsequent processing of the parts, namely, the allowance of the arc curved surface is reserved firstly and is not processed to serve as a process mounting support surface;
the invention solves the deformation problem that the fork opening is sunken inwards after the part is cut, has high part processing qualification rate, ensures the product quality, has good user experience and is worthy of popularization.
Drawings
FIG. 1 is a schematic structural diagram of a product drawing of a machining method for a fork frame type structural part product provided by the invention;
FIG. 2 is a schematic structural diagram of a drawing S1 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 3 is a schematic structural diagram of a drawing S2 of the processing method of the fork frame type structural part product provided by the invention;
FIG. 4 is a schematic structural diagram of a drawing S3 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 5 is a schematic structural diagram of a drawing S6 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 6 is a schematic structural diagram of a drawing S7 of the processing method of the fork frame type structural part product provided by the invention;
FIG. 7 is a schematic structural diagram of a drawing S8 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 8 is a schematic structural diagram of a drawing S10 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 9 is a schematic structural diagram of a drawing S11 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 10 is a schematic structural diagram of a drawing S12 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 11 is a schematic structural diagram of a drawing S13 of a machining method of a fork frame type structural part product provided by the invention;
FIG. 12 is a schematic structural diagram of a drawing S15 of a method for processing a fork frame type structural part product according to the invention;
fig. 13 is a schematic structural diagram of a drawing of S16 of the method for processing the fork frame type structural member product provided by the invention;
FIG. 14 is a schematic structural diagram of a drawing S17 of a machining method of a fork frame type structural part product provided by the invention;
fig. 15 is a schematic structural diagram of a drawing S18 of a method for processing a fork frame type structural member product according to the present invention;
fig. 16 is a schematic structural diagram of a drawing S19 of a method for processing a fork-like structural member product according to the present invention;
fig. 17 is a schematic structural diagram of a drawing of a special fixture for S19 in the method for processing a fork frame type structural member product according to the present invention;
fig. 18 is a schematic structural diagram of a special measuring tool drawing sheet for S19 in the method for processing a fork frame type structural member product according to the present invention;
FIG. 19 is a schematic structural diagram of S20 drawing of the method for processing a fork-like structural member product according to the present invention;
fig. 20 is a diagram illustrating the effect of the finished product S20 of the method for processing the fork frame type structural member product according to the present invention;
fig. 21 is a diagram illustrating the effect of the finished product S20 of the method for processing the fork frame type structural member product according to the present invention;
fig. 22 is a schematic structural diagram of a drawing S21 of the processing method of the fork frame type structural member product provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-22, one embodiment provided by the present solution: the processing method of the fork frame type structural part product comprises the following steps:
s1: receiving the bar stock;
s2: the first step of turning: turning the outer circle in the S1;
s3: centerless grinding: polishing the excircle of the bar material in the S2 to facilitate the next process;
s4: ultrasonic inspection;
s5: solid solution aging: the bar material in the S4 meets the heat treatment requirement;
s6: counting vehicles: roughly processing the bar material in the S5;
s7: the second step is turning: processing the end face of the bar stock in the S6 through a lathe to prepare for subsequent clamping;
s8: the first step of milling: milling the square of the bar stock in S7 by a milling machine;
s9: the first step of bench work: removing burrs milled by the bar material in the S8;
s10: grinding: grinding four sides of the bar in the S9 to ensure the requirement of form and position tolerance and prepare for subsequent clamping reference;
s11: the second step is milling: milling the chamfer of the bar in S10:
s12: counting vehicles: cutting threads on the bar in the S11 through a lathe;
s13: the third step is milling: milling two step surfaces of the bar stock in the S12;
s14: the second step is bench work: removing burrs milled by the bar material in the S13;
s15: first-step numerical milling: roughly machining and opening the bar stock in the S14 for subsequent process positioning;
s16: wire cutting: removing the allowance in the insert rod groove of the bar in the S15, and grinding and finishing the assembly surface by leaving the allowance of 0.1 mm;
s17: thirdly, bench work: removing the inner line of the middle groove of the bar stock in S16, cutting the remelted layer on the surface until the luster of the metal matrix, and releasing the surface stress of the part after linear cutting;
s18: and a second step of milling: performing finish machining on the hole of the bar in the S17;
s19: groove grinding: grinding the bar installation plane in the step S18, and using a special clamp and a measuring tool;
s20: flat grinding: finish machining the bar stock in S19 to ensure that the parallelism of the surface is 0.03mm, designing a groove-shaped clamp, wherein the parallelism between the upper surface and the lower surface of the clamp is within 0.005 mm;
s21: wire cutting: processing the contour of the cambered surface of the appearance by using linear cutting;
s22: fourthly, bench work: removing all burrs, and chamfering sharp edges;
s23: and (5) detecting and warehousing finished products.
Referring to fig. 1, in the present embodiment, the part processing involves twenty-two processes, wherein one process of heat treatment, one process of nondestructive testing, and two processes of special process are provided with thirteen sets of special tools.
Referring to fig. 2, in this embodiment, the bar stock in S1 has a model GH4169 and a size of phi 28 x 315 mm.
Referring to fig. 15, in this embodiment, in S18, the requirement of the size of + 4.2mm (+0.03, 0) is ensured.
In this embodiment, the ultrasonic inspection in S4 is mainly performed to check whether the bar has internal defects in S3;
in this embodiment, in the second step of S14, the product can be marked after removing the burr.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The processing method of the fork frame type structural part product is characterized by comprising the following steps:
s1: receiving the bar stock;
s2: the first step of turning: primarily turning the outer circle in the positive S1;
s3: centerless grinding: polishing the excircle of the bar stock in the S2, so that the next process can be conveniently carried out;
s4: ultrasonic inspection;
s5: solid solution aging: enabling the bar stock in the S4 to reach the heat treatment requirement;
s6: counting vehicles: roughly machining the bar stock in S5;
s7: the second step is turning: processing the end face of the bar stock in the S6 through a lathe to prepare for subsequent clamping;
s8: the first step of milling: milling the square of the bar stock in S7 through a milling machine;
s9: the first step of bench work: removing burrs milled by the bar stock in the S8;
s10: grinding: grinding four sides of the bar stock in S9, ensuring the requirement of form and position tolerance and preparing for subsequent clamping reference;
s11: the second step is milling: milling a chamfer of the bar stock in S10:
s12: counting vehicles: threading the bar stock in S11 by a lathe;
s13: the third step is milling: milling two step surfaces of the bar stock in the S12;
s14: the second step is bench work: removing burrs milled by the bar material in the S13;
s15: first-step numerical milling: roughly machining and opening the bar stock in the S14 for subsequent process positioning;
s16: wire cutting: removing the allowance in the rod inserting groove of the bar in the S15, and reserving a 0.1mm allowance on the assembly surface for grinding and finish machining;
s17: thirdly, bench work: removing the inner line of the middle groove of the bar stock in the step S16, cutting the remelted layer on the surface until the luster of the metal matrix is reached, and releasing the surface stress of the part after linear cutting;
s18: and a second step of milling: finishing the hole of the bar stock in S17;
s19: groove grinding: grinding the bar mounting plane in the S18, and using a special clamp and a measuring tool;
s20: flat grinding: finish machining the bar stock in S19 to ensure that the parallelism of the surface is 0.03mm, and designing a groove-shaped clamp, wherein the parallelism between the upper surface and the lower surface of the clamp is within 0.005 mm;
s21: wire cutting: processing the contour of the cambered surface of the appearance by using linear cutting;
s22: fourthly, bench work: removing all burrs, and chamfering sharp edges;
s23: and (6) detecting and warehousing finished products.
2. The method for processing the fork frame type structural member product according to claim 1, wherein the method comprises the following steps: the model of the bar stock in the S1 is GH4169, and the size is phi 28 x 315 mm.
3. The method for processing the fork frame type structural member product according to claim 1, wherein: the part processing relates to twenty-two working procedures, wherein one working procedure of heat treatment, one working procedure of nondestructive testing and two working procedures of special technology are provided with thirteen sets of special tools.
4. The method for processing the fork frame type structural member product according to claim 1, wherein the method comprises the following steps: in the S18, the requirement of a size of 4.2mm (+0.03, 0) is secured.
5. The method for processing the fork frame type structural member product according to claim 1, wherein the method comprises the following steps: and ultrasonic inspection in the S4, wherein the bar stock is mainly inspected whether the bar stock has internal defects in the S3.
6. The method for processing the fork frame type structural member product according to claim 1, wherein the method comprises the following steps: and S14, performing bench work to remove burrs and then marking the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207281.2A CN114571188A (en) | 2022-03-04 | 2022-03-04 | Processing method of fork frame type structural part product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207281.2A CN114571188A (en) | 2022-03-04 | 2022-03-04 | Processing method of fork frame type structural part product |
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| Publication Number | Publication Date |
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| CN114571188A true CN114571188A (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210207281.2A Pending CN114571188A (en) | 2022-03-04 | 2022-03-04 | Processing method of fork frame type structural part product |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1330161C (en) * | 1989-02-22 | 1994-06-14 | Alan E. Green | Process for manufacturing an improved lift truck fork |
| CN103084789A (en) * | 2011-10-29 | 2013-05-08 | 招远云帆五金机械有限公司 | Fork frame manufacturing process |
| US20150377315A1 (en) * | 2012-11-28 | 2015-12-31 | Schmittergroup Ag | Cylinder Tube Closed At The End So As To Be Fluid-Tight And Method For Production Thereof |
| CN106346213A (en) * | 2016-11-18 | 2017-01-25 | 陕西高华知本化工科技有限公司 | Mechanical processing method of large connection rod |
| CN110614506A (en) * | 2019-11-07 | 2019-12-27 | 张国繁 | Shifting fork drilling and polishing integrated equipment |
| CN113084462A (en) * | 2021-04-19 | 2021-07-09 | 吉林大华机械制造有限公司 | Preparation method of transmission gear shifting fork assembly |
-
2022
- 2022-03-04 CN CN202210207281.2A patent/CN114571188A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1330161C (en) * | 1989-02-22 | 1994-06-14 | Alan E. Green | Process for manufacturing an improved lift truck fork |
| CN103084789A (en) * | 2011-10-29 | 2013-05-08 | 招远云帆五金机械有限公司 | Fork frame manufacturing process |
| US20150377315A1 (en) * | 2012-11-28 | 2015-12-31 | Schmittergroup Ag | Cylinder Tube Closed At The End So As To Be Fluid-Tight And Method For Production Thereof |
| CN106346213A (en) * | 2016-11-18 | 2017-01-25 | 陕西高华知本化工科技有限公司 | Mechanical processing method of large connection rod |
| CN110614506A (en) * | 2019-11-07 | 2019-12-27 | 张国繁 | Shifting fork drilling and polishing integrated equipment |
| CN113084462A (en) * | 2021-04-19 | 2021-07-09 | 吉林大华机械制造有限公司 | Preparation method of transmission gear shifting fork assembly |
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Application publication date: 20220603 |