CN115351515A - Processing method of thermostat shell assembly - Google Patents
Processing method of thermostat shell assembly Download PDFInfo
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- CN115351515A CN115351515A CN202211135339.3A CN202211135339A CN115351515A CN 115351515 A CN115351515 A CN 115351515A CN 202211135339 A CN202211135339 A CN 202211135339A CN 115351515 A CN115351515 A CN 115351515A
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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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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Abstract
The invention belongs to the technical field of automobile part machining, and provides a machining method of a thermostat shell assembly. The whole process is compact, the equipment investment is low, only one processing equipment is needed to be matched with a plurality of processing clamps to complete the processing, the processing beat is short and balanced, the rejection rate is low, the labor cost is low, and the manufacturing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of automobile part processing, and particularly relates to a processing method of a shell assembly of a thermostat.
Background
Under the dual pressure of energy and environmental crisis, in recent years, the trend of new energy transformation in the automobile industry is very obvious, and most hybrid electric vehicles play an important role in new energy vehicles. In order to achieve the aims of low oil consumption, low emission and low cost, a large number of automobile factories perform a large number of light-weight works, so that a large number of parts have the characteristics of light weight, thin wall, high precision and the like, and great difficulty and challenge are brought to the die casting machining industry. The shell of the thermostat in the automobile part belongs to the product, and has the characteristics of easy deformation of thin wall and strict precision requirement. The workpiece is easy to be compressed and deformed by a plurality of clamps in the machining process, and the machined workpiece is easy to deform and rebound, so that the planeness and the coaxiality of the shaft hole are poor or even out of tolerance, the CPK (capacity index in the production process) is too small, and the quality management requirement cannot be met.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, an object of the present invention is to provide a method for processing a thermostat housing assembly, so as to improve the manufacturing precision of the product, meet the quality management requirements, improve the production efficiency, and reduce the manufacturing cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a processing method of a thermostat shell assembly is disclosed, and a processing device applied to the processing method of the thermostat shell assembly comprises a first processing clamp, a second processing clamp, a third processing clamp, a fourth processing clamp and a fifth processing clamp which are arranged in a processing center;
the blank piece of the thermostat shell assembly comprises a first rough positioning hole, a second rough positioning hole, a first rough positioning table top, a second rough positioning table top and a third rough positioning table top;
the processing method comprises the following steps:
s1, placing a blank piece of the thermostat shell assembly into a first machining clamp for fixing, wherein the first machining clamp comprises a first positioning piece matched with the first coarse positioning hole and the second coarse positioning hole and a first pressing and fixing device used for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top;
s2, processing the blank and forming a first reference surface, a first slot hole, a first reference hole and a second reference hole;
s3, placing the blank processed in the step S2 into a second processing fixture for fixing, wherein the second processing fixture comprises a second positioning piece matched with the first reference hole and the second reference hole and a second pressing and fixing device used for pressing the first reference surface, and processing the blank and forming an oil passage hole;
s4, placing the blank processed in the step S3 into a third processing fixture for fixing, wherein the third processing fixture comprises a third positioning piece matched with the first reference hole and the second reference hole and a third pressing and fixing device used for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, processing the blank and forming a second reference surface, a first sealing hole, a first threaded hole and a second threaded hole, and then performing chamfering treatment;
s5, placing the blank processed in the step S4 into a fourth processing fixture for fixing, wherein the fourth processing fixture comprises a fourth positioning piece matched with the first reference hole and the second reference hole and a fourth pressing and fixing device for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, processing the blank and forming a first bolt mounting surface, a third threaded hole, a second bolt mounting surface, a fourth threaded hole and a pressing hole, and then performing chamfering treatment;
s6, placing the blank processed in the step S5 into a fifth fixture for fixing, wherein the fifth fixture comprises a fifth positioning piece matched with the first reference hole and the second reference hole, a fifth pressing and fixing device used for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, and a floating supporting piece used for supporting the blank, processing the blank to form a third reference surface, a second slotted hole, a first shaft hole, a second shaft hole, a third shaft hole, a fourth shaft hole, a fifth shaft hole and a first bolt through hole, chamfering and chamfering the holes to form a fifth threaded hole, a sixth threaded hole, a seventh threaded hole and an eighth threaded hole, and chamfering the holes;
s7, manually deburring the thermostat shell assembly processed in the step S5;
s8, cleaning the thermostat shell assembly;
s9, carrying out laser marking on the thermostat shell assembly;
s10, pressing a pipe fitting on the thermostat shell assembly;
s11, performing a sealing leakage test on the thermostat shell assembly;
s12, appearance inspection;
and S13, packaging.
Preferably, in step S2, the processing of the first slotted hole adopts a diamond milling cutter, the processing of the first reference hole and the second reference hole adopts a rough and fine integrated cutter, the rough and fine integrated cutter adopts a diamond drilling reamer, the lower end of the rough and fine integrated cutter is provided with a plurality of diamond blades for rough machining, and the upper end of the rough and fine integrated cutter is provided with diamond blades for fine machining and is provided with a chamfer cutting edge.
Preferably, in step S3, a cemented carbide drill is used for machining the oil passage hole.
Preferably, in step S4, a diamond disc milling cutter is used for processing the second reference surface, a first fine-tuning diamond boring cutter is used for processing the first seal hole, a cemented carbide drill is used for processing the first threaded hole and the second threaded hole, and a chamfering blade and an extrusion tap are arranged on the cemented carbide drill.
Preferably, in step S5, the processing of first bolt installation face and third screw hole adopts counter boring integral type cutter the lower extreme setting of counter boring integral type cutter is used for processing the carbide drill bit of third screw hole the upper end setting of counter boring integral type cutter is used for processing the diamond counter boring cutter of first bolt installation face, the tapping processing of third screw hole adopts the extrusion screw tap, standard carbide end mill is adopted in the processing of second bolt installation face, the carbide drill bit is adopted in the processing of fourth screw hole, dispose chamfer cutting edge and extrusion screw tap on the carbide drill bit, rough machining cutter and finish machining cutter are adopted in the processing in pressure equipment hole, rough machining cutter adopts the carbide drill bit, finish machining cutter adopts first diamond reamer.
Processing the blank piece, forming a third reference surface, a second slotted hole, a first shaft hole, a second shaft hole, a third shaft hole, a fourth shaft hole, a fifth shaft hole and a first bolt through hole, chamfering and chamfering the holes to form a fifth threaded hole, a sixth threaded hole, a seventh threaded hole and an eighth threaded hole, and chamfering the holes
Preferably, in step S6, a rough machining tool and a finish machining tool are used for machining the second slot, the rough machining tool is a hard alloy drill bit, the finish machining tool is a second diamond reamer which has four milling cutter blades, a second fine-tuning diamond boring tool is used for machining the first shaft hole, the second shaft hole and the third shaft hole, a third fine-tuning diamond boring tool is used for machining the fourth shaft hole and the fifth shaft hole, the hard alloy drill bit is used for machining the first bolt through hole, a positive chamfer blade and a negative chamfer blade are arranged on the hard alloy drill bit used for machining the first bolt through hole, a hard alloy drill bit is used for machining the fifth screw hole, the sixth screw hole, the seventh screw hole and the eighth screw hole, and a chamfer blade and an extrusion screw tap are arranged on the hard alloy drill bit used for machining the fifth screw hole, the sixth screw hole, the seventh screw hole and the eighth screw hole.
Preferably, a machining clamp includes a first clamp seat be equipped with first guide block on the first clamp seat, first locating piece, first compressing and fixing device locate first clamp seat, the quantity of first locating piece is two, first locating piece includes first locating pin spare, first compressing and fixing device's quantity is three and encircles first locating piece setting, first compressing and fixing device includes first supporting seat, a hold-down mechanism and a driving cylinder, the drive end of a driving cylinder with a hold-down mechanism connects, a hold-down end of a hold-down mechanism is in the top of first supporting seat.
Preferably, the second machining clamp comprises a second clamp seat and a second installation face, the second installation face is obliquely arranged with the second clamp seat, a second guide block is arranged on the second installation face, the second positioning piece and the second pressing and fixing device are arranged on the second installation face, the number of the second positioning piece is two, the second positioning piece comprises a second positioning pin piece, the number of the second pressing and fixing device is three, the second pressing and fixing device comprises a second supporting seat, a second pressing mechanism and a second driving cylinder, the driving end of the second driving cylinder is connected with the second pressing mechanism, the pressing end of the second pressing mechanism is located above the second supporting seat, and a space for placing a blank of the thermostat shell assembly is formed among the second guide block, the second positioning piece and the second pressing and fixing device.
Preferably, the third machining fixture comprises a third fixture seat and a third installation surface, the third installation surface and the third fixture seat are obliquely arranged, a third guide block is arranged on the third installation surface, the third positioning part and a third pressing and fixing device are arranged on the third installation surface, the third positioning part comprises a third positioning pin, the number of the third pressing and fixing devices is three, the third pressing and fixing device comprises a third support seat, a third pressing mechanism and a third driving cylinder, the driving end of the third driving cylinder is connected with the third pressing mechanism, the pressing end of the third pressing mechanism is positioned above the third support seat, and the third positioning part and the third pressing and fixing device are arranged around the third guide block;
the fourth machining clamp comprises a fourth clamp seat, a fourth guide block is arranged on the fourth clamp seat, a fourth positioning piece and a fourth pressing and fixing device are arranged on the fourth clamp seat, the fourth positioning piece comprises a fourth positioning pin piece, the fourth pressing and fixing device comprises a fourth supporting seat, a fourth pressing mechanism and a fourth driving cylinder, the driving end of the fourth driving cylinder is connected with the fourth pressing mechanism, and the pressing end of the fourth pressing mechanism is located above the fourth supporting seat.
Preferably, the fifth fixture comprises a fifth fixture seat and a fifth installation surface, the fifth installation surface and the fifth fixture seat are perpendicular to each other, a fifth guide block is arranged on the fifth installation surface, a fifth positioning element and a fifth pressing and fixing device are arranged on the fifth installation surface, the fifth positioning element comprises a fifth positioning pin, the number of the fifth pressing and fixing devices is three, the fifth pressing and fixing device comprises a fifth supporting seat, a fifth pressing mechanism and a fifth driving cylinder, the driving end of the fifth driving cylinder is connected with the fifth pressing mechanism, the pressing end of the fifth pressing mechanism is located above the fifth supporting seat, the fifth positioning element and the fifth pressing and fixing device are arranged around the fifth guide block, and the floating support element is arranged on the fifth fixture seat.
Compared with the prior art, the invention has the beneficial effects that:
the processing method of the thermostat shell assembly has the advantages of compact process, less equipment investment, short and balanced processing takt, low rejection rate and low labor cost, and improves the manufacturing efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of the thermostat housing assembly of the present invention.
FIG. 2 is a side view of the thermostat housing assembly of the present invention.
FIG. 3 is a top view of the thermostat housing assembly of the present invention.
FIG. 4 is a cross-sectional view of the thermostat housing assembly of the present invention.
Fig. 5 is a front view of the first machining jig of the present invention.
Fig. 6 is a plan view of the first machining jig of the present invention.
Fig. 7 is a perspective view of a second machining jig of the present invention.
Fig. 8 is a front view of a second mounting surface of the second machining jig of the present invention.
Fig. 9 is a front view of a third machining jig of the present invention.
Fig. 10 is a front view of a fourth machining jig of the present invention.
Fig. 11 is a front view of a fifth jig of the present invention.
Fig. 12 is a side view of a fifth industrial jig of the present invention.
Wherein:
1-a first coarse positioning hole, 2-a second coarse positioning hole, 3-a first coarse positioning table top, 4-a second coarse positioning table top, 5-a third coarse positioning table top, 6-a first reference surface, 7-a first slotted hole, 8-a first reference hole, 9-a second reference hole, 10-an oil channel hole, 11-a second reference surface, 12-a first sealing hole, 13-a first threaded hole, 14-a second threaded hole, 15-a first bolt mounting surface, 16-a third threaded hole, 17-a second bolt mounting surface, 18-a fourth threaded hole, 19-a press mounting hole, 20-a third reference surface, 21-a second slotted hole, 22-a first axial hole, 23-a second axial hole, 24-a third axial hole, 25-a fourth axial hole, 26-a fifth axial hole, 27-a first bolt through hole, 28-a fifth threaded hole, 29-a sixth threaded hole, 30-a seventh threaded hole, and 31-an eighth threaded hole;
32-a first processing clamp, 321-a first clamp seat, 322-a first guide block, 323-a first positioning piece, 324-a first pressing and fixing device, 3241-a first supporting seat, 3242-a first pressing mechanism, 3243-a first driving cylinder, 32421-a first linkage rod, 32422-a first pressing and fixing seat and 32423-a first pressing rod;
33-a second processing clamp, 331-a second clamp seat, 332-a second mounting surface, 333-a second guide block, 334-a second positioning piece, 335-a second pressing and fixing device;
34-a third machining clamp, 341-a third clamp seat, 342-a third mounting surface, 343-a third guide block, 344-a third positioning piece and 345-a third pressing and fixing device;
35-a fourth processing clamp, 351-a fourth clamp seat, 352-a fourth guide block, 353-a fourth positioning piece and 354-a fourth pressing and fixing device;
36-fifth fixture, 361-fifth fixture seat, 362-fifth mounting surface, 363-fifth guide block, 364-fifth positioning piece, 365-fifth pressing and fixing device and 366-floating support piece.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiment is as follows:
as shown in fig. 1 to 12, the present embodiment provides a method for machining a thermostat housing assembly, and a machining device applied to the method for machining the thermostat housing assembly includes a first machining fixture 32, a second machining fixture 33, a third machining fixture 34, a fourth machining fixture 35 and a fifth machining fixture 36 which are disposed in a machining center;
the blank of the thermostat shell assembly is formed by die-casting, the machining allowance of a plane to be machined of the blank is designed to be 0.5mm, the machining allowance of a hole (groove) to be machined is designed to be a single side of 0.4mm, and the blank comprises a first coarse positioning hole 1, a second coarse positioning hole 2, a first coarse positioning table top 3, a second coarse positioning table top 4 and a third coarse positioning table top 5;
in this embodiment, the processing locations and requirements of the thermostat housing are as follows:
the device comprises a first reference surface 6, a first groove hole 7, a first reference hole 8, a second reference hole 9, an oil channel hole 10, a second reference surface 11, a first sealing hole 12, a first threaded hole, a second threaded hole and a chamfer, a first bolt mounting surface 15, a third threaded hole 16 and a chamfer, a second bolt mounting surface 17, a fourth threaded hole 18 and a chamfer, a press mounting hole 19, a third reference surface 20, a second groove hole 21, a first shaft hole 22, a second shaft hole 23, a third shaft hole 24, a fourth shaft hole 25, a fifth shaft hole 26, a first bolt through hole 27 chamfer and a reverse chamfer, fifth to eighth threaded holes and chamfers, and burrs are manually cleaned. The flatness requirement of the assembling surface is less than 0.1mm; the coaxiality of the shaft hole is 0.03mm, and the verticality is 0.05mm. And a chamfer is processed on one side of the back surface of the bolt through hole. The two semicircular holes are divided into a multi-stage shape by the oil groove.
The processing method comprises the following steps:
s1, placing a blank of the thermostat shell assembly into a first machining clamp 32 for fixing, wherein the first machining clamp 32 comprises a first positioning piece 323 matched with a first coarse positioning hole 1 and a second coarse positioning hole 2 and a first pressing and fixing device 324 for pressing a first coarse positioning table top 3, a second coarse positioning table top 4 and a third coarse positioning table top 5;
the first machining clamp 32 comprises a first clamp seat 321, a first guide block 322 is arranged on the first clamp seat 321, a first positioning piece 323 and a first pressing fixing device 324 are arranged on the first clamp seat 321, the number of the first positioning piece 323 is two, the first positioning piece 323 comprises a first positioning pin piece, the number of the first pressing fixing device 324 is three, the first pressing fixing device 324 is arranged around the first positioning piece 323, the first pressing fixing device 324 comprises a first supporting seat 3241, a first pressing mechanism 3242 and a first driving cylinder 3243, a driving end of the first driving cylinder 3243 is connected with the first pressing mechanism 3242, and a pressing end of the first pressing mechanism 3242 is located above the first supporting seat 3241.
The first pressing mechanism 3242 comprises a first linkage rod 32421, a first pressing fixing seat 32422 and a first pressing rod 32423, the middle of the first pressing rod 32423 is hinged to the first pressing fixing seat 32422, the first pressing fixing seat 32422 is arranged on the first clamp seat 321, one end of the first linkage rod 32421 is connected with the driving end of the first driving cylinder 3243, the other end of the first pressing rod 32423 is hinged to one end of the first pressing rod 32423, and the other end of the first pressing rod 32423 is a pressing end.
S2, processing the blank and forming a first reference surface 6, a first slot hole 7, a first reference hole 8 and a second reference hole 9;
s3, placing the blank processed in the step S2 into a second processing fixture 33 for fixing, wherein the second processing fixture 33 comprises a second positioning piece 334 matched with the first reference hole 8 and the second reference hole 9 and a second pressing and fixing device 335 for pressing the first reference surface 6, and processing the blank to form an oil passage hole 10;
the second machining fixture 33 comprises a second fixture seat 331 and a second mounting surface 332, the second mounting surface 332 and the second fixture seat 331 are obliquely arranged, a second guide block 333 is arranged on the second mounting surface 332, a second positioning member 334 and a second pressing and fixing device 335 are arranged on the second mounting surface 332, the number of the second positioning members 334 is two, the second positioning member 334 comprises a second positioning pin member, the number of the second pressing and fixing device 335 is three, the second pressing and fixing device 335 comprises a second support seat, a second pressing mechanism and a second driving cylinder, a driving end of the second driving cylinder is connected with the second pressing mechanism, a pressing end of the second pressing mechanism is located above the second support seat, and a space for placing a blank of the thermostat housing assembly is formed among the second guide block 333, the second positioning member 334 and the second pressing and fixing device 335.
S4, placing the blank processed in the step S3 into a third processing clamp 34 for fixing, wherein the third processing clamp 34 comprises a third positioning piece 344 matched with the first reference hole 8 and the second reference hole 9 and a third pressing and fixing device 345 for pressing the first coarse positioning table top 3, the second coarse positioning table top 4 and the third coarse positioning table top 5, processing the blank to form a second reference surface 11, a first sealing hole 12, a first threaded hole 13 and a second threaded hole 14, and then performing chamfering treatment;
the third machining fixture 34 includes a third fixture seat 341 and a third mounting surface 342, the third mounting surface 342 and the third fixture seat 341 are obliquely arranged, a third guide block 343 is disposed on the third mounting surface 342, a third positioning piece 344 and a third pressing and fixing device 345 are disposed on the third mounting surface 342, the third positioning piece 344 includes a third positioning pin, the number of the third pressing and fixing devices 345 is three, the third pressing and fixing device 345 includes a third support seat, a third pressing mechanism and a third driving cylinder, a driving end of the third driving cylinder is connected with the third pressing mechanism, a pressing end of the third pressing mechanism is located above the third support seat, the third positioning piece 344 and the third pressing and fixing device 345 are disposed around the third guide block 343, and the third guide block 343 is disposed to cooperate with the blank;
s5, placing the blank processed in the step S4 into a fourth processing clamp 35 for fixing, wherein the fourth processing clamp 35 comprises a fourth positioning piece 353 matched with the first datum hole 8 and the second datum hole 9 and a fourth pressing and fixing device 354 used for pressing the first coarse positioning table top 3, the second coarse positioning table top 4 and the third coarse positioning table top 5, processing the blank to form a first bolt mounting surface 15, a third threaded hole 16, a second bolt mounting surface 17, a fourth threaded hole 18 and a pressing hole 19, and then performing chamfering treatment;
the fourth machining fixture 35 includes a fourth fixture seat 351, a fourth guide block 352 is disposed on the fourth fixture seat 351, a fourth positioning member 353 and a fourth pressing fixing device 354 are disposed on the fourth fixture seat 351, the fourth positioning member 353 includes a fourth positioning pin, the fourth pressing fixing device 354 includes a fourth support seat, a fourth pressing mechanism and a fourth driving cylinder, a driving end of the fourth driving cylinder is connected with the fourth pressing mechanism, and a pressing end of the fourth pressing mechanism is located above the fourth support seat.
S6, placing the blank processed in the step S5 into a fifth machining fixture 36 for fixing, wherein the fifth machining fixture 36 comprises a fifth positioning piece 364 matched with the first reference hole 8 and the second reference hole 9, a fifth pressing and fixing device 365 used for pressing the first coarse positioning table top 3, the second coarse positioning table top 4 and the third coarse positioning table top 5 and a floating support piece 366 used for supporting the blank, machining the blank to form a third reference surface 20, a second groove hole 21, a first shaft hole 22, a second shaft hole 23, a third shaft hole 24, a fourth shaft hole 25, a fifth shaft hole 26 and a first bolt through hole 27, chamfering and reversely chamfering the holes to form a fifth threaded hole 28, a sixth threaded hole 29, a seventh threaded hole 30 and an eighth threaded hole 31, and chamfering the holes;
the fifth workpiece fixture 36 includes a fifth fixture seat 361 and a fifth mounting surface 362, the fifth mounting surface 362 and the fifth fixture seat 361 are perpendicular to each other, the fifth mounting surface 362 is provided with a fifth guide block 363, a fifth positioning member 364 and a fifth pressing and fixing device 365 are provided on the fifth mounting surface 362, the fifth positioning member 364 includes a fifth positioning pin member, the number of the fifth pressing and fixing devices 365 is three, the fifth pressing and fixing device 365 includes a fifth supporting seat, a fifth pressing mechanism and a fifth driving cylinder, a driving end of the fifth driving cylinder is connected with the fifth pressing mechanism, a pressing end of the fifth pressing mechanism is located above the fifth supporting seat, the fifth positioning member 364 and the fifth pressing and fixing device 365 are provided around the fifth guide block 363, the floating support member 366 is provided on the fifth fixture seat 361, and the fifth guide block 363 is engaged with the blank member.
S7, manually deburring the thermostat shell assembly processed in the step S5;
s8, cleaning the shell assembly of the thermostat;
s9, carrying out laser marking on the thermostat shell assembly;
s10, pressing a pipe fitting on the thermostat shell assembly;
s11, performing a sealing leakage test on the thermostat shell assembly;
s12, appearance inspection;
and S13, packaging.
Specifically, in step S2, a diamond milling cutter is used for processing the first slot 7, a rough-finish integrated cutter is used for processing the first reference hole 8 and the second reference hole 9, a diamond drilling reamer is used for the rough-finish integrated cutter, a plurality of diamond blades for rough processing are arranged at the lower end of the rough-finish integrated cutter, and diamond blades for finish processing and orifice chamfering blades are arranged at the upper end of the rough-finish integrated cutter.
Specifically, in step S3, a cemented carbide drill is used to machine the oil passage hole 10.
Specifically, in step S4, a diamond disc cutter is used to machine the second reference surface 11, a first fine diamond boring cutter is used to machine the first seal hole 12, a carbide drill is used to machine the first threaded hole 13 and the second threaded hole 14, and a chamfering blade and an extrusion tap are arranged on the carbide drill.
Specifically, in step S5, the countersink drill integrated tool is used for processing the first bolt mounting surface 15 and the third screw hole 16, a cemented carbide drill bit for processing the third screw hole 16 is arranged at the lower end of the countersink drill integrated tool, a diamond cutter for processing the first bolt mounting surface 15 is arranged at the upper end of the countersink drill integrated tool, an extrusion tap is used for tapping the third screw hole 16, a standard cemented carbide end mill is used for processing the second bolt mounting surface 17, a cemented carbide drill bit is used for processing the fourth screw hole 18, a chamfer edge and an extrusion tap are arranged on the cemented carbide drill bit, a rough machining tool and a finish machining tool are used for processing the press-fitting hole 19, the rough machining tool is the cemented carbide drill bit, and the finish machining tool is the first diamond reamer.
Processing a blank to form a third reference surface 20, a second slot hole 21, a first shaft hole 22, a second shaft hole 23, a third shaft hole 24, a fourth shaft hole 25, a fifth shaft hole 26 and a first bolt through hole 27, chamfering and chamfering the holes to form a fifth threaded hole 28, a sixth threaded hole 29, a seventh threaded hole 30 and an eighth threaded hole 31, and chamfering the holes
Specifically, in step S6, a rough machining tool and a finish machining tool are used for machining the second slot 21, a cemented carbide drill bit is used for the rough machining tool, a second diamond reamer is used for the finish machining tool, the second diamond reamer has four milling cutter blades, a second fine-tuning diamond boring tool is used for machining the first shaft hole 22, the second shaft hole 23 and the third shaft hole 24, a third fine-tuning diamond boring tool is used for machining the fourth shaft hole 25 and the fifth shaft hole 26, a cemented carbide drill bit is used for machining the first bolt via hole 27, a forward chamfer blade and an inverse chamfer blade are arranged on the cemented carbide drill bit used for machining the first bolt via hole 27, a cemented carbide drill bit is used for machining the fifth screw hole 28, the sixth screw hole 29, the seventh screw hole 30 and the eighth screw hole 31, and a chamfer blade and an extrusion tap are arranged on the cemented carbide drill bit used for machining the fifth screw hole 28, the sixth screw hole 29, the seventh screw hole 30 and the eighth screw hole 31.
In summary, compared with the prior art, the method has the following advantages:
1. according to the processing method of the shell assembly of the thermostat, which is provided by the invention, the clamps are firstly improved, and a plurality of processing clamps are designed specially for the processing requirements of a processing center, so that the requirements of different processing surfaces are met.
2. The positioning pin adopts a floating conical pin structure, and ensures that a blank hole of the thermostat shell assembly is automatically centered without a gap.
3. The hydraulic cylinder clamping structure of the supporting cylinder assembly and the clamping cylinder assembly is adopted, the stability of fixing of the thermostat shell assembly in the machining process is guaranteed, the machining precision is guaranteed, and meanwhile the guide block is arranged, so that the thermostat shell assembly can conveniently enter a fixing area, and the positioning and fixing of a machined product are facilitated.
4. The processing method of the thermostat shell assembly has the advantages of compact process, less equipment investment, short and balanced processing time, low rejection rate and low labor cost, only needs one processing device to be matched with a plurality of processing clamps to complete processing, and improves the manufacturing efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A processing method of a thermostat shell assembly is characterized by comprising the following steps: the processing device applied to the processing method of the thermostat shell assembly comprises a first processing clamp, a second processing clamp, a third processing clamp, a fourth processing clamp and a fifth processing clamp which are arranged in a processing center;
the blank piece of the thermostat shell assembly comprises a first coarse positioning hole, a second coarse positioning hole, a first coarse positioning table top, a second coarse positioning table top and a third coarse positioning table top;
the processing method comprises the following steps:
s1, placing a blank piece of the thermostat shell assembly into a first machining fixture for fixing, wherein the first machining fixture comprises a first positioning piece matched with the first rough positioning hole and the second rough positioning hole and a first pressing and fixing device used for pressing the first rough positioning table top, the second rough positioning table top and the third rough positioning table top;
s2, processing the blank piece and forming a first reference surface, a first slot hole, a first reference hole and a second reference hole;
s3, placing the blank processed in the step S2 into a second processing fixture for fixing, wherein the second processing fixture comprises a second positioning piece matched with the first reference hole and the second reference hole and a second pressing and fixing device used for pressing the first reference surface, and processing the blank and forming an oil passage hole;
s4, placing the blank processed in the step S3 into a third processing fixture for fixing, wherein the third processing fixture comprises a third positioning piece matched with the first reference hole and the second reference hole and a third pressing and fixing device used for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, processing the blank and forming a second reference surface, a first sealing hole, a first threaded hole and a second threaded hole, and then performing chamfering treatment;
s5, placing the blank processed in the step S4 into a fourth processing fixture for fixing, wherein the fourth processing fixture comprises a fourth positioning piece matched with the first reference hole and the second reference hole and a fourth pressing and fixing device for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, processing the blank and forming a first bolt mounting surface, a third threaded hole, a second bolt mounting surface, a fourth threaded hole and a pressing hole, and then performing chamfering treatment;
s6, placing the blank processed in the step S5 into a fifth fixture for fixing, wherein the fifth fixture comprises a fifth positioning piece matched with the first reference hole and the second reference hole, a fifth pressing and fixing device used for pressing the first coarse positioning table top, the second coarse positioning table top and the third coarse positioning table top, and a floating supporting piece used for supporting the blank, processing the blank to form a third reference surface, a second slotted hole, a first shaft hole, a second shaft hole, a third shaft hole, a fourth shaft hole, a fifth shaft hole and a first bolt through hole, chamfering and chamfering the holes to form a fifth threaded hole, a sixth threaded hole, a seventh threaded hole and an eighth threaded hole, and chamfering the holes;
s7, manually deburring the thermostat shell assembly processed in the step S5;
s8, cleaning the thermostat shell assembly;
s9, carrying out laser marking on the thermostat shell assembly;
s10, pressing a pipe fitting on the thermostat shell assembly;
s11, performing a sealing leakage test on the thermostat shell assembly;
s12, appearance inspection;
and S13, packaging.
2. The method for processing the thermostat housing assembly according to claim 1, wherein in step S2, the first slot is processed by a diamond milling cutter, the first reference hole and the second reference hole are processed by a rough-finish integrated cutter, the rough-finish integrated cutter is a diamond drilling reamer, the rough-finish integrated cutter is provided with a plurality of diamond blades for rough processing at a lower end, diamond blades for finish processing at an upper end, and an orifice chamfering blade edge.
3. The method of claim 1, wherein in step S3, the oil passage hole is machined using a cemented carbide drill.
4. The method of claim 1, wherein in step S4, the second reference surface is machined by a diamond disc cutter, the first seal hole is machined by a first fine-tuning diamond boring tool, the first and second threaded holes are machined by a carbide drill bit, and the carbide drill bit is provided with a chamfer blade and an extrusion tap.
5. The method of manufacturing a thermostat housing assembly according to claim 1, wherein in step S5, a countersink drill integrated tool is used for machining the first bolt mounting surface and the third threaded hole, a cemented carbide drill bit for machining the third threaded hole is provided at a lower end of the countersink drill integrated tool, a diamond countersink for machining the first bolt mounting surface is provided at an upper end of the countersink drill integrated tool, an extrusion tap is used for tapping the third threaded hole, a standard cemented carbide end mill is used for machining the second bolt mounting surface, a cemented carbide drill bit is used for machining the fourth threaded hole, a chamfer blade and an extrusion tap are provided on the cemented carbide drill bit, a roughing tool and a finishing tool are used for machining the press-fitting hole, the roughing tool is a cemented carbide drill bit, and the finishing tool is a first diamond reamer.
And processing the blank piece, forming a third reference surface, a second slotted hole, a first shaft hole, a second shaft hole, a third shaft hole, a fourth shaft hole, a fifth shaft hole and a first bolt through hole, chamfering and chamfering the holes to form a fifth threaded hole, a sixth threaded hole, a seventh threaded hole and an eighth threaded hole, and chamfering the holes.
6. The method of claim 1, wherein in step S6, the second slot is machined by using a rough machining tool and a finish machining tool, the rough machining tool is a hard alloy drill, the finish machining tool is a second diamond reamer having four milling cutter blades, the first, second and third shaft holes are machined by using a second fine-tuning diamond boring tool, the fourth and fifth shaft holes are machined by using a third fine-tuning diamond boring tool, the first bolt hole is machined by using a hard alloy drill, the hard alloy drill used for machining the first bolt hole is provided with a positive chamfer blade and a negative chamfer blade, the fifth, sixth, seventh and eighth screw holes are machined by using a hard alloy drill, and the hard alloy drill used for machining the fifth, sixth, seventh and eighth screw holes is provided with a chamfer blade and an extrusion tap.
7. The method for machining the thermostat housing assembly according to claim 1, wherein the first machining fixture includes a first fixture seat, a first guide block is disposed on the first fixture seat, the first positioning member and a first pressing and fixing device are disposed on the first fixture seat, the number of the first positioning member is two, the first positioning member includes a first positioning pin, the number of the first pressing and fixing device is three, the first pressing and fixing device is disposed around the first positioning member, the first pressing and fixing device includes a first supporting seat, a first pressing mechanism and a first driving cylinder, a driving end of the first driving cylinder is connected with the first pressing mechanism, and a pressing end of the first pressing mechanism is located above the first supporting seat.
8. The thermostat housing assembly machining method according to claim 1, wherein the second machining fixture comprises a second fixture seat and a second installation surface, the second installation surface and the second fixture seat are obliquely arranged, a second guide block is arranged on the second installation surface, the second positioning pieces and the second pressing and fixing devices are arranged on the second installation surface, the number of the second positioning pieces is two, the second positioning pieces comprise second positioning pin pieces, the number of the second pressing and fixing devices is three, the second pressing and fixing devices comprise second support seats, second pressing mechanisms and second driving cylinders, a driving end of each second driving cylinder is connected with the second pressing mechanism, a pressing end of each second pressing mechanism is located above the corresponding second support seat, and a space for placing blanks of the thermostat housing assembly is formed among the second guide block, the second positioning pieces and the second pressing and fixing devices.
9. The method for machining the thermostat shell assembly according to claim 1, wherein the third machining fixture comprises a third fixture seat and a third mounting surface, the third mounting surface and the third fixture seat are obliquely arranged, a third guide block is arranged on the third mounting surface, the third positioning piece and a third pressing and fixing device are arranged on the third mounting surface, the third positioning piece comprises a third positioning pin piece, the number of the third pressing and fixing devices is three, the third pressing and fixing device comprises a third support seat, a third pressing mechanism and a third driving cylinder, a driving end of the third driving cylinder is connected with the third pressing mechanism, a pressing end of the third pressing mechanism is located above the third support seat, and the third positioning piece and the third pressing and fixing device are arranged around the third guide block;
the fourth machining clamp comprises a fourth clamp seat, a fourth guide block is arranged on the fourth clamp seat, a fourth positioning piece and a fourth pressing and fixing device are arranged on the fourth clamp seat, the fourth positioning piece comprises a fourth positioning pin piece, the fourth pressing and fixing device comprises a fourth supporting seat, a fourth pressing mechanism and a fourth driving cylinder, the driving end of the fourth driving cylinder is connected with the fourth pressing mechanism, and the pressing end of the fourth pressing mechanism is located above the fourth supporting seat.
10. The method for machining the thermostat shell assembly according to claim 1, wherein the fifth fixture comprises a fifth fixture seat and a fifth installation surface, the fifth installation surface and the fifth fixture seat are arranged perpendicular to each other, a fifth guide block is arranged on the fifth installation surface, the fifth positioning member and a fifth pressing and fixing device are arranged on the fifth installation surface, the fifth positioning member comprises a fifth positioning pin member, the number of the fifth pressing and fixing devices is three, the fifth pressing and fixing device comprises a fifth supporting seat, a fifth pressing mechanism and a fifth driving cylinder, a driving end of the fifth driving cylinder is connected with the fifth pressing mechanism, a pressing end of the fifth pressing mechanism is located above the fifth supporting seat, the fifth positioning member and the fifth pressing and fixing device are arranged around the fifth guide block, and the floating support member is arranged on the fifth fixture seat.
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| CN113404616A (en) * | 2021-06-30 | 2021-09-17 | 湛江德利车辆部件有限公司 | Front housing and processing method thereof |
| CN114932379A (en) * | 2022-05-11 | 2022-08-23 | 广东鸿图南通压铸有限公司 | Machining method for motor shell of pure electric vehicle |
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| JP2001260671A (en) * | 2000-03-22 | 2001-09-26 | Jatco Transtechnology Ltd | Method of manufacturing transmission unit housing and transmission unit housing |
| CN109268126A (en) * | 2018-11-20 | 2019-01-25 | 宁波裕隆汽车制泵有限公司 | A kind of thermostat lower case and its processing method |
| CN111660070A (en) * | 2020-06-23 | 2020-09-15 | 湛江德利车辆部件有限公司 | Oil pan and machining method thereof |
| CN111975304A (en) * | 2020-08-31 | 2020-11-24 | 东风(十堰)有色铸件有限公司 | Processing technique method for electric vehicle speed reducer shell |
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