CN110253231B - Machining method for removing burrs of solid retainer - Google Patents
Machining method for removing burrs of solid retainer Download PDFInfo
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- CN110253231B CN110253231B CN201910656180.1A CN201910656180A CN110253231B CN 110253231 B CN110253231 B CN 110253231B CN 201910656180 A CN201910656180 A CN 201910656180A CN 110253231 B CN110253231 B CN 110253231B
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- 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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Abstract
The invention discloses a processing method for removing burrs of an entity retainer, relates to the field of metal processing, and aims to solve the problem that the burrs on the surface of the entity retainer in the prior art are difficult to remove manually, and the processing method for removing the burrs of the entity retainer comprises the following steps: turning and forming; step two: grinding an end face; step three: grinding the outer diameter; step four: the inner diameter of the final vehicle; step five: turning an inner step and chamfering; step six: marking; step seven: drilling and milling holes; step eight: deburring; step nine: polishing; step ten: detecting dynamic balance; step eleven: performing fluorescent penetrant inspection; step twelve: acid washing; step thirteen: final inspection; fourteen steps: silver plating; step fifteen: detecting the dynamic balance after silver; sixthly, the steps are as follows: cleaning; seventeen steps: packaging; the invention is mainly used for removing processing burrs on the surface, the pocket and the step part of the bearing retainer during bearing processing.
Description
Technical Field
The invention relates to a processing method for removing burrs of a solid retainer, and belongs to the field of metal processing.
Background
Burrs are irregular parts such as various sharp edges and burrs appearing at the transition position of the surface of a workpiece in the manufacturing process of metal and nonmetal parts, the burrs influence the detection, assembly, service performance, working life and the like of the parts, and particularly influence the quality of precision parts such as bearings and the like, so that the burrs are one of the most main factors influencing the product quality in the processing process;
mechanical processing inevitably generates some burrs, manual burr removal is influenced by factors such as personnel quality, skill level and the like, processing quality is extremely unstable, and meanwhile manual burr removal easily generates scratches, collision damages and the like on important surfaces to influence product quality;
the original entity retainer deburring processing method is characterized in that burrs are manually removed, an operator manually removes the burrs of the retainer, the influence of human factors is large, the manual work is not uniform, sometimes the manual work is large or small, the fluctuation of the appearance quality of the retainer is large, even sometimes the burrs on the surface of the retainer are not completely removed, the problem of frequent repeated reworking exists, the processing time is wasted, the product delivery progress is influenced, a burr cutter is manually ground by the operator, the randomness is large, the appearance of the burr cutter is different and irregular, sometimes the cutter is sharp, the operator easily touches other surfaces of the retainer carelessly, the surface of the retainer is scratched, and the product is scrapped. Sometimes, when an operator removes burrs, fingers of the operator are pricked by the burrs, or sometimes, the fingers of the operator are pricked by the burr cutter, and unnecessary damage is caused to the operator;
to remove various burrs on the surface of the solid cage is not easy, takes a lot of man-hours, and increases the production cost of the solid cage, and therefore, it should not be limited to a post-process measure of selecting a reasonable deburring method after the burrs are generated, but more importantly, a pre-process measure of preventing and controlling the generation of the burrs should be taken into consideration during the process design.
Taking a certain type of entity holder as an example, the process flow is as follows: shaping → first plane of fine turning → second plane of fine turning → external diameter of rough grinding → internal diameter of fine turning → marking → drilling → boring → external diameter of fine grinding → internal diameter of final turning → external diameter of final grinding → internal step of turning and chamfering → deburring → polishing → dynamic balance → acid cleaning → final inspection → silver plating → dynamic balance of silver → packaging
The process flow has the following problems: the pockets are uniformly distributed on the outer diameter and inner diameter surfaces of the cage after drilling and boring, the surface of the cage at the moment is discontinuous, then the processes of fine grinding of the outer diameter, final turning of the inner diameter, turning of the inner step, chamfering and the like are carried out, large and more burrs are generated around the round pocket and at the joint of the inner step of the cage and the pocket, the burrs are difficult to remove by an operator manually, and the burrs are difficult to remove, so that the processing method for removing the burrs generated around the pocket and at the joint of the inner step of the cage and the pocket is very satisfactory.
Disclosure of Invention
The invention provides a processing method for removing burrs of an entity retainer, aiming at solving the problem that the burrs on the surface of the entity retainer are difficult to remove manually in the prior art.
A processing method for removing burrs of a solid retainer comprises the following implementation steps:
the method comprises the following steps: turning and forming;
the method aims at the forming steps of the steel material parts including rough turning, tempering and fine turning, and comprises the following specific operation processes:
a) the method comprises the following steps Roughly turning the inner diameter and chamfering the first end face of the blank; reserving 1.1-1.3 mm of inner diameter for the fine turning, and reserving 0.3-0.5 mm of first end surface for the fine turning by the rough turning first end surface;
b) the method comprises the following steps Roughly turning the outer diameter of the blank and chamfering the second end face; the allowance for the outer diameter of the fine car is 1.1-1.3 mm, and the allowance for the second end surface of the fine car is 0.3-0.5 mm;
c) the method comprises the following steps Tempering the roughly turned parts;
d) the method comprises the following steps Performing fine turning on the inner diameter and the first end face chamfering on the tempered part; reserving 0.4-0.55 mm of inner diameter of the final vehicle, and reserving 0.08-0.12 mm of first end face grinding;
e) the method comprises the following steps Performing fine turning on the external diameter and chamfering on the second end face of the tempered part; the allowance for grinding the outer diameter is 0.2-0.25 mm, and the allowance for grinding the second end face is 0.08-0.12 mm;
step two: grinding an end face; grinding both end faces of the molded part of the retainer machined in the step one by using a double-end-face grinding machine, wherein the machining amount of the process is 0.08-0.12 mm, and the size of the end face of the machined retainer reaches the size of the end face of a finished retainer;
step three: grinding the outer diameter; performing outer diameter grinding processing on the molded part of the retainer processed in the step two, wherein the processing amount in the working procedure is 0.2-0.25 mm, and the total outer diameter of the retainer is processed to the outer diameter of the finished product of the retainer in the working procedure;
step four: the inner diameter of the final vehicle; carrying out final turning inner diameter machining on the retainer forming part machined in the third step, wherein the machining amount in the working procedure is 0.4-0.55 mm, and the total inner diameter of the retainer is machined to the inner diameter of the retainer finished product in the working procedure;
step five: turning an inner step and chamfering; carrying out inner step turning and chamfering processing on the retainer forming part processed in the fourth step, wherein the step and the chamfer in the retainer assembly are processed to the size of the inner step and the chamfer of the finished retainer;
step six: marking;
step seven: drilling and milling holes; utilizing an alloy steel drill bit to drill a pocket on a numerical control machining center, utilizing a milling cutter to perform rough machining on the pocket, and then performing finish machining, wherein the size of the pocket obtained after finish machining is the size of a pocket of a finished cage product;
step eight: deburring;
case 1: and C, taking the retainer as copper, and performing the specific process of deburring on the round pocket structure solid retainer processed in the step seven as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs on the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, adopting the inner diameter of the retainer for positioning, namely flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, wherein the central line of the brush is vertical to the central line of the retainer, and finishing the deburring of the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer by rotating the finishing machining unit equipment forward at the forward rotating speed of 2200-2400r/min for 30-35 s, then rotating the finishing machining unit equipment backward at the backward rotating speed of 2200;
d) the method comprises the following steps Removing burrs on the circular arc surface of the inner diameter circular pocket hole of the retainer and the inner step surface, selecting a bowl-shaped brush, enabling the swinging distance of the brush to be 2mm, adopting outer diameter positioning of the retainer, namely enabling the end surface of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the center line of the brush to be in a parallel state with the center line of the retainer, enabling the finishing machining unit equipment to rotate forwards for 35-40 s at a forward rotation speed of 2200-2400r/min, then rotate backwards for 35-40 s at a reverse rotation speed of 2200-2400r/min, and then performing width turning machining according to the method, and finishing the removal of the burrs on the circular arc;
e) the method comprises the following steps Removing burrs of the left cambered surface and the right cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, swinging the brush for 2mm, adopting the inner diameter positioning of the retainer, namely, flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the brush to be in a vertical state with the central line of the retainer, enabling the finishing processing unit equipment to rotate forwards at a forward rotation speed of 2200-2400r/min for 30-35 s, then rotating backwards at a reverse rotation speed of 2200-2400r/min for 30-35 s, and performing amplitude turning according to the method, and finishing the burr removal of the left cambered surface and the right cambered;
case 2: the material of the retainer is steel, and the specific process of deburring the solid retainer with the square pocket structure processed in the step seven is as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction of the retainer, selecting a planar hairbrush, adopting inner diameter positioning of the retainer, namely, the end surface of the retainer is flatly placed on a movable claw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, wherein the central line of the hairbrush is vertical to the central line of the retainer, finishing machining unit equipment is reversely rotated at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and the burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction;
d) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the inner diameter of the retainer, selecting a planar brush, enabling the swinging distance of the brush to be 2mm, adopting the outer diameter of the retainer for positioning, namely enabling the end face of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the central line of the brush to be in a parallel state with the central line of the retainer, and finishing the burr removal of the lintel of the pocket holes in the inner diameter of the retainer by using a finishing processing unit at a forward rotation speed of 2300-2500 r/min, forward rotation of 30-35 s, and reverse rotation of 2300-2500 r/;
e) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the outer diameter direction of the retainer, selecting a bowl-shaped hairbrush with a swinging distance of 1mm, adopting inner diameter positioning of the retainer, namely flatly placing the end face of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the hairbrush to be in a parallel state with the central line of the retainer, rotating the finishing processing unit equipment at a forward rotation speed of 2300-2500 r/min for 50-55 s, then at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and turning the finishing processing according to the method, and finishing the burr removal of the lintel of the pocket holes in the outer;
step nine: polishing;
step ten: detecting dynamic balance;
step eleven: performing fluorescent penetrant inspection;
step twelve: acid washing;
step thirteen: final inspection;
fourteen steps: silver plating;
step fifteen: detecting the dynamic balance after silver;
sixthly, the steps are as follows: cleaning;
seventeen steps: and (6) packaging.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the manual deburring in the prior art, the processing method provided by the invention can ensure uniform and consistent appearance quality and stable processing quality, generally, the manual deburring of each product generally requires 15min, and the processing efficiency is improved by at least 62% by using the method provided by the invention for processing.
2. Compared with the manual deburring in the prior art, the processing method provided by the invention provides a new positioning tool, and is suitable for removing more than 90% of burrs of the retainer on the equipment; the stability and the reliability of workpiece positioning in the using process are met; the design structure is relatively simple, the processing cost and the processing difficulty are reduced, the requirements on simple and quick operation in the adjusting and clamping process are met, and the disassembly is convenient and time-saving.
3. Compared with the existing manual deburring method, the processing method provided by the invention has the advantages that the one-time cross-inspection qualification rate of the deburring process of the retainer is improved to more than 98% from the original less than 60%, and meanwhile, the appearance quality of the product is effectively improved.
Drawings
FIG. 1 is a cross-sectional view of an inner diameter positioning tool of the present invention;
FIG. 2 is a sectional view taken along the line B-B of the inner diameter positioning tool of the present invention;
FIG. 3 is a top view of the inner diameter positioning tool of the present invention;
FIG. 4 is a schematic view of the inner diameter positioning tool of the present invention;
FIG. 5 is a partial enlarged view of the inner diameter positioning tool of the present invention;
FIG. 6 is a cross-sectional view of the outer diameter positioning tool of the present invention;
FIG. 7 is a sectional view taken along the line A-A of the outer diameter positioning tool of the present invention;
FIG. 8 is a top view of the outer diameter positioning tool of the present invention;
FIG. 9 is a schematic view showing the effect of the outer diameter positioning tool of the present invention;
fig. 10 is a partially enlarged view of the outer diameter positioning tool of the present invention.
In the figure, a movable clamping jaw with an inner diameter of 1, a first through groove with an inner diameter of 1-1, a stepped hole with an inner diameter of 1-2, a first T-shaped guide key with an inner diameter of 2-1, a first base with an inner diameter of 2-1, a first T-shaped guide groove with an inner diameter of 3-1, a second stepped hole with an inner diameter of 3-2, a first bolt with an inner diameter of 4-2, a movable clamping jaw with an outer diameter of 5-1, a second through groove with an inner diameter of 5-1, a third stepped hole with an inner diameter of 5-2, a second T-shaped guide groove with an inner diameter of 3-1, a second stepped hole with an inner diameter of 3-.
Detailed Description
The first embodiment is as follows: the machining method for removing the burrs of the solid retainer in the embodiment comprises the following implementation steps of:
the method comprises the following steps: turning and forming;
case 1: the method aims at the forming steps of the steel material parts including rough turning, tempering and fine turning, and comprises the following specific operation processes:
a) the method comprises the following steps Roughly turning the inner diameter and chamfering the first end face of the blank; reserving 1.1-1.3 mm of inner diameter for the fine turning, and reserving 0.3-0.5 mm of first end surface for the fine turning by the rough turning first end surface;
b) the method comprises the following steps Roughly turning the outer diameter of the blank and chamfering the second end face; the allowance for the outer diameter of the fine car is 1.1-1.3 mm, and the allowance for the second end surface of the fine car is 0.3-0.5 mm;
c) the method comprises the following steps Tempering the roughly turned parts;
d) the method comprises the following steps Performing fine turning on the inner diameter and the first end face chamfering on the tempered part; reserving 0.4-0.55 mm of inner diameter of the final vehicle, and reserving 0.08-0.12 mm of first end face grinding;
e) the method comprises the following steps Performing fine turning on the external diameter and chamfering on the second end face of the tempered part; the allowance for grinding the outer diameter is 0.2-0.25 mm, and the allowance for grinding the second end face is 0.08-0.12 mm;
case 2: the forming step of the copper material part comprises a fine turning, and the specific operation process is as follows:
a) the method comprises the following steps Performing fine turning on the inner diameter and chamfering the first end face of the blank; reserving 0.4-0.55 mm for the inner diameter of the final vehicle, and reserving 0.08-0.12 mm for grinding the first end face;
b) the method comprises the following steps Performing fine turning on the inner diameter and chamfering on the second end face of the blank; the allowance for grinding the outer diameter is 0.2-0.25 mm, and the allowance for grinding the second end face is 0.08-0.12 mm;
step two: grinding an end face; grinding both end faces of the molded part of the retainer machined in the step one by using a double-end-face grinding machine, wherein the machining amount of the process is 0.08-0.12 mm, and the size of the end face of the machined retainer reaches the size of the end face of a finished retainer;
step three: grinding the outer diameter; performing outer diameter grinding processing on the molded part of the retainer processed in the step two, wherein the processing amount in the working procedure is 0.2-0.25 mm, and the total outer diameter of the retainer is processed to the outer diameter of the finished product of the retainer in the working procedure;
step four: the inner diameter of the final vehicle; carrying out final turning inner diameter machining on the retainer forming part machined in the third step, wherein the machining amount in the working procedure is 0.4-0.55 mm, and the total inner diameter of the retainer is machined to the inner diameter of the retainer finished product in the working procedure;
step five: turning an inner step and chamfering; carrying out inner step turning and chamfering processing on the retainer forming part processed in the fourth step, wherein the step and the chamfer in the retainer assembly are processed to the size of the inner step and the chamfer of the finished retainer;
step six: marking;
step seven: drilling and milling holes; utilizing an alloy steel drill bit to drill a pocket on a numerical control machining center, utilizing a milling cutter to perform rough machining on the pocket, and then performing finish machining, wherein the size of the pocket obtained after finish machining is the size of a pocket of a finished cage product;
step eight: deburring;
case 1: and C, taking the retainer as copper, and performing the specific process of deburring on the round pocket structure solid retainer processed in the step seven as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs on the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, adopting the inner diameter of the retainer for positioning, namely flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, wherein the central line of the brush is vertical to the central line of the retainer, and finishing the deburring of the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer by rotating the finishing machining unit equipment forward at the forward rotating speed of 2200-2400r/min for 30-35 s, then rotating the finishing machining unit equipment backward at the backward rotating speed of 2200;
d) the method comprises the following steps Removing burrs on the circular arc surface of the inner diameter circular pocket hole of the retainer and the inner step surface, selecting a bowl-shaped brush, enabling the swinging distance of the brush to be 2mm, adopting outer diameter positioning of the retainer, namely enabling the end surface of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the center line of the brush to be in a parallel state with the center line of the retainer, enabling the finishing machining unit equipment to rotate forwards for 35-40 s at a forward rotation speed of 2200-2400r/min, then rotate backwards for 35-40 s at a reverse rotation speed of 2200-2400r/min, and then performing width turning machining according to the method, and finishing the removal of the burrs on the circular arc;
e) the method comprises the following steps Removing burrs of the left cambered surface and the right cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, swinging the brush for 2mm, adopting the inner diameter positioning of the retainer, namely, flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the brush to be in a vertical state with the central line of the retainer, enabling the finishing processing unit equipment to rotate forwards at a forward rotation speed of 2200-2400r/min for 30-35 s, then rotating backwards at a reverse rotation speed of 2200-2400r/min for 30-35 s, and performing amplitude turning according to the method, and finishing the burr removal of the left cambered surface and the right cambered;
case 2: the material of the retainer is steel, and the specific process of deburring the solid retainer with the square pocket structure processed in the step seven is as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction of the retainer, selecting a planar hairbrush, adopting inner diameter positioning of the retainer, namely, the end surface of the retainer is flatly placed on a movable claw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, wherein the central line of the hairbrush is vertical to the central line of the retainer, finishing machining unit equipment is reversely rotated at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and the burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction;
d) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the inner diameter of the retainer, selecting a planar brush, enabling the swinging distance of the brush to be 2mm, adopting the outer diameter of the retainer for positioning, namely enabling the end face of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the central line of the brush to be in a parallel state with the central line of the retainer, and finishing the burr removal of the lintel of the pocket holes in the inner diameter of the retainer by using a finishing processing unit at a forward rotation speed of 2300-2500 r/min, forward rotation of 30-35 s, and reverse rotation of 2300-2500 r/;
e) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the outer diameter direction of the retainer, selecting a bowl-shaped hairbrush with a swinging distance of 1mm, adopting inner diameter positioning of the retainer, namely flatly placing the end face of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the hairbrush to be in a parallel state with the central line of the retainer, rotating the finishing processing unit equipment at a forward rotation speed of 2300-2500 r/min for 50-55 s, then at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and turning the finishing processing according to the method, and finishing the burr removal of the lintel of the pocket holes in the outer;
step nine: polishing;
step ten: detecting dynamic balance;
step eleven: performing fluorescent penetrant inspection;
step twelve: acid washing;
step thirteen: final inspection;
fourteen steps: silver plating;
step fifteen: detecting the dynamic balance after silver;
sixthly, the steps are as follows: cleaning:
seventeen steps: and (6) packaging.
In the embodiment, compared with the processing technology in the prior art, the 'drilling and hole milling' procedure is arranged after the 'grinding outer diameter, final turning inner diameter and turning inner step' procedure for processing, and the purpose is to eliminate hard and large burrs caused by intermittent turning, the burrs generated by the intermittent turning are very difficult to remove, large and more burrs are generated around the round pocket and at the joint of the inner step of the retainer and the pocket, and the burrs are most easily generated in the drilling and hole milling procedures, so that the severity of the generation of the burrs is controlled by adjusting processing parameters in the processing process.
The second embodiment is as follows: the embodiment is further limited to the machining method for removing burrs of the solid retainer described in the first embodiment, and the first embodiment is described with reference to fig. 1 to 4, in the present embodiment, the inner diameter positioning tool assembly mentioned in the eighth step includes N inner diameter positioning tools, N is a positive integer, each inner diameter positioning tool includes an inner diameter movable clamping jaw 1, a first T-shaped guide key 2, a first base 3 and four first bolts 4, the bottom of each inner diameter movable clamping jaw 1 is provided with a first through groove 1-1 along the length direction, the top of each first base 3 is provided with a first T-shaped guide groove 3-1 along the length direction, each first T-shaped guide key 2 is arranged in one first T-shaped guide groove 3-1 and one through groove 1-1, and each first T-shaped guide key 2 is slidably connected with one first T-shaped guide groove 3-1, one end of the bottom surface of each first T-shaped guide groove 3-1 is provided with two second stepped holes 3-2, a first bolt 4 is arranged in each second stepped hole 3-2, the threaded end of each first bolt 4 is arranged outside the lower surface of the first base 3, the upper surface of each first T-shaped guide key 2 is provided with two first threaded holes 2-1, the bottom surface of each first through groove 1-1 is provided with two first stepped holes 1-2, each first threaded hole 2-1 and each first stepped hole 1-2 are oppositely arranged, each first threaded hole 2-1 and each first stepped hole 1-2 are internally provided with one first bolt 4, and the threaded part of each bolt 4 is in threaded connection with one first threaded hole 2-1. Other components and connection modes are the same as those of the first embodiment.
The third concrete implementation mode: the embodiment is further limited to the processing method for removing burrs of the solid retainer described in the first embodiment, and is described with reference to fig. 5 to 8, in the embodiment, the outer diameter positioning tool assembly mentioned in the eighth step includes N outer diameter positioning tools, N is a positive integer, each outer diameter positioning tool includes an outer diameter movable clamping jaw 5, a second T-shaped guide key 6, a second base 7 and four second bolts 8, the bottom of each outer diameter movable clamping jaw 5 is provided with a second through groove 5-1 along the length direction, the top of each second base 7 is provided with a second T-shaped guide groove 7-1 along the length direction, each second T-shaped guide key 6 is arranged in one second T-shaped guide groove 7-1 and two through grooves 5-1, and each second T-shaped guide key 6 is slidably connected with one second T-shaped guide groove 7-1, one end of the bottom surface of each second T-shaped guide groove 7-1 is provided with two fourth stepped holes 7-2, each fourth stepped hole 7-2 is internally provided with a second bolt 8, the threaded end of each second bolt 8 is arranged outside the lower surface of the second base 7, the upper surface of each second T-shaped guide key 6 is provided with two second threaded holes 6-1, the bottom surface of each second through groove 5-1 is provided with two third stepped holes 5-2, each second threaded hole 6-1 and each third stepped hole 5-2 are oppositely arranged, each second threaded hole 6-1 and each third stepped hole 5-2 are internally provided with a second bolt 8, and the threaded part of each second bolt 8 is in threaded connection with one second threaded hole 6-1. Other components and connection modes are the same as those of the first embodiment.
The fourth concrete implementation mode: the present embodiment is further limited to the processing method for removing the burrs of the solid cage according to the first embodiment, and is described with reference to fig. 4 and 8, where N has a value in a range of 3 to 6. Other components and connection modes are the same as those of the first embodiment.
So set up, the location frock plays location and reinforced (rfd) effect in processing, prevents that the holder from producing the skew when removing the burr owing to receiving the power of cutter application, therefore the location frock is difficult for too little, and too little can lead to the location inaccurate, influences the machining precision, and equally location frock is also difficult too much, can increase the cost of manufacture when the location frock is too much, simultaneously because holder size reason, the location frock is too much can influence the effect when holder burring.
The fifth concrete implementation mode: in this embodiment, the machining method for removing the burrs of the solid holder is further limited, and the embodiment is described with reference to fig. 1, fig. 4, fig. 5, and fig. 8, in this embodiment, the N inner diameter positioning tools and the N outer diameter positioning tools are circumferentially and equidistantly distributed on the workbench of the finishing machining unit device, and each inner diameter positioning tool and each outer diameter positioning tool are fixedly connected with the workbench of the finishing machining unit device through bolts. Other components and connection modes are the same as those of the first embodiment.
The sixth specific implementation mode: the present embodiment is further limited to the processing method for removing the burrs of the solid holder according to the first embodiment, and the present embodiment will be described with reference to fig. 1, in which a rubber protective layer is provided on the contact surface of each of the inner diameter movable jaws 1 and the workpiece. Other components and connection modes are the same as those of the first embodiment.
So set up, can effectual protection holder internal diameter's surface quality when the dress card.
The seventh embodiment: in the present embodiment, the machining method for removing the burrs of the solid holder according to the first embodiment is further limited, and the present embodiment will be described with reference to fig. 5, in which a rubber protective layer is provided on the contact surface between each of the outer diameter movable claws 5 and the workpiece. Other components and connection modes are the same as those of the first embodiment.
So set up, can effectual protection holder external diameter's surface quality when the dress card.
The specific implementation mode is eight: the present embodiment is further limited to the processing method for removing burrs of the solid holder according to the first embodiment, and the present embodiment will be described with reference to fig. 9, in which the inner diameter movable jaw 1 and the first base 3 are fixed by tooth engagement. Other components and connection modes are the same as those of the first embodiment.
The specific implementation method nine: the present embodiment further defines the processing method for removing the burrs of the solid holder according to the first embodiment, and is described with reference to fig. 10, in which the outer diameter movable jaw 5 and the second base 7 are fixed by tooth engagement. Other components and connection modes are the same as those of the first embodiment.
With the arrangement, in the embodiment, the movable clamping jaw and the base teeth are selected to be meshed and fixed, so that the function of limiting is achieved after the clamping process is carried out according to different types of retainers, the retainer needing to be deburred is firstly installed on the positioning tool when the positioning tool is used, the retainer is positioned through the movable clamping jaw and the T-shaped guide key (the rubber protective layer can extrude the retainer in the process to prepare for subsequent clamping, the surface of the retainer cannot be damaged due to certain elasticity of the rubber protective layer), the movable clamping jaw and the T-shaped guide key are fastened through the bolt after the positioning, meanwhile, the retainer is arranged in the rubber protective layer on the movable clamping jaw, so that the retainer is clamped in the positioning tool assembly, the movable clamping jaw is meshed and fixed with the base teeth, the limiting effect is further guaranteed, and the situation that the movable clamping jaw and the T-shaped guide key are driven to move by the retainer under stress in the deburring work is avoided.
The detailed implementation mode is ten: the embodiment is further limited to the processing method for removing the burrs of the solid retainer, which is described in the first embodiment, and in the embodiment: the finishing unit equipment is a deburring machine model LB250S2 produced by Shanghai Popule electromechanical manufacturing Limited liability company. Other components and connection modes are the same as those of the first embodiment.
Examples
The embodiment provides a processing method for removing burrs of a solid retainer, which takes a steel retainer as an example and specifically comprises the following steps:
the method comprises the following steps: turning and forming;
a) the method comprises the following steps Roughly turning the inner diameter and chamfering the first end face of the blank; reserving 1.2mm of inner diameter of the fine turning, and reserving 0.4mm of first end surface of the fine turning for the first end surface of the rough turning;
b) the method comprises the following steps Roughly turning the outer diameter of the blank and chamfering the second end face; the allowance for the outer diameter of the fine car is 1.2mm, and the allowance for the second end surface of the fine car is 0.4 mm;
c) the method comprises the following steps Tempering the roughly turned parts;
d) the method comprises the following steps Performing fine turning on the inner diameter and the first end face chamfering on the tempered part; reserving 0.5mm for the inner diameter of the final vehicle, and reserving 0.1mm for grinding the first end face;
e) the method comprises the following steps Performing fine turning on the external diameter and chamfering on the second end face of the tempered part; the allowance for grinding the outer diameter is 0.2mm, and the allowance for grinding the second end face is 0.1 mm;
step two: grinding an end face; grinding both end faces of the molded part of the retainer machined in the step one by using a double-end-face grinding machine, wherein the machining amount of the working procedure is 0.1mm, and the size of the end face of the machined retainer reaches the size of the end face of a finished retainer product;
step three: grinding the outer diameter; grinding the outer diameter of the molded part of the retainer processed in the step two, wherein the processing amount in the working procedure is 0.2mm, and the total outer diameter of the retainer is processed to the outer diameter of the finished product of the retainer in the working procedure;
step four: the inner diameter of the final vehicle; carrying out final turning inner diameter machining on the retainer forming part machined in the third step, wherein the machining amount in the working procedure is 0.5mm, and the total inner diameter of the retainer is machined to the inner diameter of the finished retainer;
step five: turning an inner step and chamfering; carrying out inner step turning and chamfering processing on the retainer forming part processed in the fourth step, wherein the step and the chamfer in the retainer assembly are processed to the size of the inner step and the chamfer of the finished retainer;
step six: marking;
step seven: drilling and milling holes; utilizing an alloy steel drill bit to drill a pocket on a numerical control machining center, utilizing a milling cutter to perform rough machining on the pocket, and then performing finish machining, wherein the size of the pocket obtained after finish machining is the size of a pocket of a finished cage product;
step eight: deburring;
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs of the upper side, the lower side, the outer step and the step claw of the pocket hole in the outer diameter direction of the retainer, selecting a planar hairbrush, adopting inner diameter positioning of the retainer, namely, the end face of the retainer is flatly placed on a movable claw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, wherein the central line of the hairbrush is vertical to the central line of the retainer, finishing machining unit equipment is reversely rotated at a reverse rotation speed of 2300r/min for 50s, and the burrs of the upper side, the lower side, the outer step and the step claw of the pocket hole in the outer diameter direction;
d) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the inner diameter of the retainer, selecting a planar brush, swinging the brush by 2mm, positioning the outer diameter of the retainer, namely, flatly placing the end face of the retainer on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, wherein the central line of the brush is parallel to the central line of the retainer, and finishing the burr removal of the lintel of the pocket holes in the inner diameter of the retainer at a forward rotation speed of 2300r/min, a forward rotation speed of 30s, a reverse rotation speed of 2300r/min and a reverse rotation speed of 30s by a finishing processing;
e) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the outer diameter direction of the retainer, selecting a bowl-shaped hairbrush with the swinging distance of 1mm, adopting the inner diameter positioning of the retainer, namely, the end face of the retainer is flatly placed on a movable clamping jaw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, the central line of the hairbrush is parallel to the central line of the retainer, rotating the finishing processing unit equipment at a forward rotation speed of 2300r/min for 50s, then at a reverse rotation speed of 2300r/min for 50s, and turning for 50s according to the method, and removing the burrs of the lintel of the pocket holes in the outer diameter direction of;
step nine: polishing;
step ten: detecting dynamic balance;
step eleven: performing fluorescent penetrant inspection;
step twelve: acid washing;
step thirteen: final inspection;
fourteen steps: silver plating;
step fifteen: detecting the dynamic balance after silver;
sixthly, the steps are as follows: cleaning;
seventeen steps: and (6) packaging.
Calculating the deburring time in the machining process as follows: 50+ (30+30) + (50+50) × 2 ═ 310s ≈ 5.2min
Taking a copper retainer as an example, the method specifically comprises the following steps:
the method comprises the following steps: turning and forming;
a) the method comprises the following steps Performing fine turning on the inner diameter and chamfering the first end face of the blank; reserving 0.4mm for the inner diameter of the final vehicle, and reserving 0.1mm for grinding the first end face;
b) the method comprises the following steps Performing fine turning on the inner diameter and chamfering on the second end face of the blank; the allowance for grinding the outer diameter is 0.2mm, and the allowance for grinding the second end face is 0.1 mm;
step two: grinding an end face; grinding both end faces of the molded part of the retainer machined in the step one by using a double-end-face grinding machine, wherein the machining amount of the working procedure is 0.1mm, and the size of the end face of the machined retainer reaches the size of the end face of a finished retainer product;
step three: grinding the outer diameter; grinding the outer diameter of the molded part of the retainer processed in the step two, wherein the processing amount in the working procedure is 0.2mm, and the total outer diameter of the retainer is processed to the outer diameter of the finished product of the retainer in the working procedure;
step four: the inner diameter of the final vehicle; carrying out final turning inner diameter machining on the retainer forming part machined in the third step, wherein the machining amount in the working procedure is 0.4mm, and the total inner diameter of the retainer is machined to the inner diameter of the finished retainer;
step five: turning an inner step and chamfering; carrying out inner step turning and chamfering processing on the retainer forming part processed in the fourth step, wherein the step and the chamfer in the retainer assembly are processed to the size of the inner step and the chamfer of the finished retainer;
step six: marking;
step seven: drilling and milling holes; utilizing an alloy steel drill bit to drill a pocket on a numerical control machining center, utilizing a milling cutter to perform rough machining on the pocket, and then performing finish machining, wherein the size of the pocket obtained after finish machining is the size of a pocket of a finished cage product;
step eight: deburring;
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs of the upper cambered surface and the lower cambered surface of the outer diameter circular pocket hole of the retainer, selecting a planar hairbrush, adopting the inner diameter positioning of the retainer, namely, the end surface of the retainer is flatly placed on a movable clamping jaw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, wherein the central line of the hairbrush is vertical to the central line of the retainer, the finishing machining unit equipment is firstly rotated forwards at the speed of 2300r/min for 30s, then rotated backwards at the speed of 2300r/min for 30s, and the burrs of the upper cambered surface and the lower cambered surface of the outer diameter circular pocket hole of the;
d) the method comprises the following steps Removing burrs on the circular arc surface of the inner diameter circular pocket hole of the retainer and the inner step surface, selecting a bowl-shaped brush, enabling the swinging distance of the brush to be 2mm, adopting outer diameter positioning of the retainer, namely enabling the end surface of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the central line of the brush to be in a parallel state with the central line of the retainer, enabling the finishing machining unit equipment to rotate forward at a forward rotation speed of 2300r/min for 40s and then rotate backward at a reverse rotation speed of 2300r/min for 40s, and performing flanging machining according to the method, wherein the burrs on the circular arc surface of the inner diameter circular;
e) the method comprises the following steps Removing burrs on left and right cambered surfaces of a circular pocket hole on the outer diameter of the retainer, selecting a planar brush, swinging the brush by 2mm, positioning the inner diameter of the retainer, namely, flatly placing the end face of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the brush and the central line of the retainer to be in a vertical state, rotating the finishing processing unit equipment at a forward rotation speed of 2300r/min for 30s in a forward rotation mode, then at a reverse rotation speed of 2300r/min for 30s in a reverse rotation mode, and performing flanging processing according to the method, wherein the burrs on the left and right cambered surfaces of the circular;
step nine: polishing;
step ten: detecting dynamic balance;
step eleven: performing fluorescent penetrant inspection;
step twelve: acid washing;
step thirteen: final inspection;
fourteen steps: silver plating;
step fifteen: detecting the dynamic balance after silver;
sixthly, the steps are as follows: cleaning:
seventeen steps: and (6) packaging.
Calculating the deburring time in the machining process as follows: 30+30+ (40+40) × 2+ (30+30) × 2 ≈ 340s 5.7min
Because the burr is produced most easily in drilling and milling process, the severity that the burr produced is controlled through adjusting the processing parameter in this embodiment, and according to the cage pocket machining scope in this embodiment, drilling and milling process processing parameter are as follows:
in the table, f is the feeding amount, and n is the rotating speed;
meanwhile, 100 bearing retainers in the embodiment are selected, manual deburring is carried out, the results are checked, the number of qualified surface burr pieces is 56, the one-time checking qualified rate is 56%, the same type of retainer is 100 retainers, and the one-time checking qualified rate of the retainer deburring processing by the polishing unit is 98%;
the difference between the manual deburring and the processing method is analyzed by using a lean six-sigma binary logistic regression method, a workpiece A for manual deburring and a workpiece B for deburring processed by using the processing method are scanned by a system, the quantity of variable burrs is input, regression operation is performed according to a link function Logit, the coefficient standard error of the workpiece A is 29.85, the coefficient standard error of the workpiece B is 1.01, and the advantage ratio P obtained by operation is 0.001 and is less than 0.05, so that the relation is established, and the analysis conclusion is shown: the manual deburring processing method is 29.85 times of the defect generating opportunity of the method provided by the invention (the workpiece A and the workpiece B are cages of the same type, and the designation A and B are only convenient for distinguishing products processed by different deburring methods);
therefore, compared with the manual deburring method in the prior art, the deburring method provided by the invention has remarkable beneficial effects in processing time and processing stability.
The present invention is not limited to the above embodiments, and any person skilled in the art can make many modifications and equivalent variations by using the above-described structures and technical contents without departing from the scope of the present invention.
Claims (8)
1. A processing method for removing burrs of a solid retainer is characterized by comprising the following steps: the method comprises the following implementation steps:
the method comprises the following steps: turning and forming;
case 1: the method aims at the forming steps of the steel material parts including rough turning, tempering and fine turning, and comprises the following specific operation processes:
a) the method comprises the following steps Roughly turning the inner diameter and chamfering the first end face of the blank; reserving 1.1-1.3 mm of inner diameter for the fine turning, and reserving 0.3-0.5 mm of first end surface for the fine turning by the rough turning first end surface;
b) the method comprises the following steps Roughly turning the outer diameter of the blank and chamfering the second end face; the allowance for the outer diameter of the fine car is 1.1-1.3 mm, and the allowance for the second end surface of the fine car is 0.3-0.5 mm;
c) the method comprises the following steps Tempering the roughly turned parts;
d) the method comprises the following steps Performing fine turning on the inner diameter and the first end face chamfering on the tempered part; reserving 0.4-0.55 mm of inner diameter of the final vehicle, and reserving 0.08-0.12 mm of first end face grinding;
e) the method comprises the following steps Performing fine turning on the external diameter and chamfering on the second end face of the tempered part; the allowance for grinding the outer diameter is 0.2-0.25 mm, and the allowance for grinding the second end face is 0.08-0.12 mm;
case 2: the forming step of the copper material part comprises a fine turning, and the specific operation process is as follows:
a) the method comprises the following steps Performing fine turning on the inner diameter and chamfering the first end face of the blank; reserving 0.4-0.55 mm for the inner diameter of the final vehicle, and reserving 0.08-0.12 mm for grinding the first end face;
b) the method comprises the following steps Performing fine turning on the inner diameter and chamfering on the second end face of the blank; the allowance for grinding the outer diameter is 0.2-0.25 mm, and the allowance for grinding the second end face is 0.08-0.12 mm;
step two: grinding an end face; grinding both end faces of the molded part of the retainer machined in the step one by using a double-end-face grinding machine, wherein the machining amount of the process is 0.08-0.12 mm, and the size of the end face of the machined retainer reaches the size of the end face of a finished retainer;
step three: grinding the outer diameter; performing outer diameter grinding processing on the molded part of the retainer processed in the step two, wherein the processing amount in the working procedure is 0.2-0.25 mm, and the total outer diameter of the retainer is processed to the outer diameter of the finished product of the retainer in the working procedure;
step four: the inner diameter of the final vehicle; carrying out final turning inner diameter machining on the retainer forming part machined in the third step, wherein the machining amount in the working procedure is 0.4-0.55 mm, and the total inner diameter of the retainer is machined to the inner diameter of the retainer finished product in the working procedure;
step five: turning an inner step and chamfering; carrying out inner step turning and chamfering processing on the retainer forming part processed in the fourth step, wherein the step and the chamfer in the retainer assembly are processed to the size of the inner step and the chamfer of the finished retainer;
step six: marking;
step seven: drilling and milling holes; utilizing an alloy steel drill bit to drill a pocket on a numerical control machining center, utilizing a milling cutter to perform rough machining on the pocket, and then performing finish machining, wherein the size of the pocket obtained after finish machining is the size of a pocket of a finished cage product;
case 1: when the holder material is copper, the concrete process of circle pocket structure entity holder deburring after the processing is as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs on the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, adopting the inner diameter of the retainer for positioning, namely flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, wherein the central line of the brush is vertical to the central line of the retainer, and finishing the deburring of the upper cambered surface and the lower cambered surface of the circular pocket hole of the outer diameter of the retainer by rotating the finishing machining unit equipment forward at the forward rotating speed of 2200-2400r/min for 30-35 s, then rotating the finishing machining unit equipment backward at the backward rotating speed of 2200;
d) the method comprises the following steps Removing burrs on the circular arc surface of the inner diameter circular pocket hole of the retainer and the inner step surface, selecting a bowl-shaped brush, enabling the swinging distance of the brush to be 2mm, adopting outer diameter positioning of the retainer, namely enabling the end surface of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the center line of the brush to be in a parallel state with the center line of the retainer, enabling the finishing machining unit equipment to rotate forwards for 35-40 s at a forward rotation speed of 2200-2400r/min, then rotate backwards for 35-40 s at a reverse rotation speed of 2200-2400r/min, and then performing width turning machining according to the method, and finishing the removal of the burrs on the circular arc;
e) the method comprises the following steps Removing burrs of the left cambered surface and the right cambered surface of the circular pocket hole of the outer diameter of the retainer, selecting a planar brush, swinging the brush for 2mm, adopting the inner diameter positioning of the retainer, namely, flatly placing the end surface of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the brush to be in a vertical state with the central line of the retainer, enabling the finishing processing unit equipment to rotate forwards at a forward rotation speed of 2200-2400r/min for 30-35 s, then rotating backwards at a reverse rotation speed of 2200-2400r/min for 30-35 s, and performing amplitude turning according to the method, and finishing the burr removal of the left cambered surface and the right cambered;
case 2: when the holder material is the steel, the concrete process of circle pocket structure entity holder deburring after the processing is as follows:
a) the method comprises the following steps Respectively selecting an inner diameter positioning tool assembly and an outer diameter positioning tool assembly with similar specifications according to the inner diameter and the outer diameter of the retainer, installing the outer diameter positioning tool assembly on finishing processing unit equipment according to processing steps when burrs on the outer diameter of the pocket are removed, adjusting the outer diameter positioning tool assembly to a proper position to fixedly clamp the retainer, installing the inner diameter positioning tool assembly on the finishing processing unit equipment when burrs on the inner diameter of the pocket are removed, adjusting the inner diameter positioning tool assembly to a proper position to fixedly clamp the retainer in cooperation with the outer diameter positioning tool assembly for inner diameter adjustment of the retainer;
b) the method comprises the following steps Selecting a brush with a proper specification and shape according to the structure of the retainer;
c) the method comprises the following steps Removing burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction of the retainer, selecting a planar hairbrush, adopting inner diameter positioning of the retainer, namely, the end surface of the retainer is flatly placed on a movable claw in an inner diameter positioning tool assembly to clamp and fix the inner diameter of the retainer, wherein the central line of the hairbrush is vertical to the central line of the retainer, finishing machining unit equipment is reversely rotated at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and the burrs of the upper edge, the lower edge, the outer step and the step claw of the pocket hole in the outer diameter direction;
d) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the inner diameter of the retainer, selecting a planar brush, enabling the swinging distance of the brush to be 2mm, adopting the outer diameter of the retainer for positioning, namely enabling the end face of the retainer to be horizontally placed on a movable clamping jaw in an outer diameter positioning tool assembly, clamping and fixing the outer diameter of the retainer, enabling the central line of the brush to be in a parallel state with the central line of the retainer, and finishing the burr removal of the lintel of the pocket holes in the inner diameter of the retainer by using a finishing processing unit at a forward rotation speed of 2300-2500 r/min, forward rotation of 30-35 s, and reverse rotation of 2300-2500 r/;
e) the method comprises the following steps Removing burrs of the lintel of the pocket holes in the outer diameter direction of the retainer, selecting a bowl-shaped hairbrush with a swinging distance of 1mm, adopting inner diameter positioning of the retainer, namely flatly placing the end face of the retainer on a movable clamping jaw in an inner diameter positioning tool assembly, clamping and fixing the inner diameter of the retainer, enabling the central line of the hairbrush to be in a parallel state with the central line of the retainer, rotating the finishing processing unit equipment at a forward rotation speed of 2300-2500 r/min for 50-55 s, then at a reverse rotation speed of 2300-2500 r/min for 50-55 s, and turning the finishing processing according to the method, and finishing the burr removal of the lintel of the pocket holes in the outer;
step eight: deburring; removing burrs of the bearing retainer with the machined hole in the seventh step by adopting a finishing machining unit in cooperation with an inner diameter positioning tool and an outer diameter positioning tool;
step nine: polishing;
step ten: detecting dynamic balance;
step eleven: performing fluorescent penetrant inspection;
step twelve: acid washing;
step thirteen: final inspection;
fourteen steps: silver plating;
step fifteen: detecting the dynamic balance after silver;
sixthly, the steps are as follows: cleaning;
seventeen steps: and (6) packaging.
2. The machining method for deburring of a solid cage according to claim 1, wherein: the inner diameter positioning tool assembly mentioned in the eighth step comprises N inner diameter positioning tools, N is a positive integer, each inner diameter positioning tool comprises an inner diameter movable clamping jaw (1), a first T-shaped guide key (2), a first base (3) and four first bolts (4), the bottom of each inner diameter movable clamping jaw (1) is provided with a first through groove (1-1) along the length direction, the top of each first base (3) is provided with a first T-shaped guide groove (3-1) along the length direction, each first T-shaped guide key (2) is arranged in the first T-shaped guide groove (3-1) and the through groove (1-1), each first T-shaped guide key (2) is slidably connected with the first T-shaped guide groove (3-1), one end of the bottom of each first T-shaped guide groove (3-1) is provided with two second stepped holes (3-2), a first bolt (4) is arranged in each second stepped hole (3-2), the threaded end of each first bolt (4) is arranged outside the lower surface of the first base (3), the upper surface of each first T-shaped guide key (2) is provided with two first threaded holes (2-1), the bottom surface of each first through groove (1-1) is provided with two first stepped holes (1-2), each first threaded hole (2-1) and each first stepped hole (1-2) are arranged oppositely, each first threaded hole (2-1) and each first stepped hole (1-2) are provided with one first bolt (4), and the threaded portion of each bolt (4) is in threaded connection with one first threaded hole (2-1).
3. The machining method for deburring of a solid cage according to claim 2, wherein: the outer diameter positioning tool assembly mentioned in the eighth step comprises N outer diameter positioning tools, N is a positive integer, each outer diameter positioning tool comprises an outer diameter movable clamping jaw (5), a second T-shaped guide key (6), a second base (7) and four second bolts (8), the bottom of each outer diameter movable clamping jaw (5) is provided with a second through groove (5-1) along the length direction, the top of each second base (7) is provided with a second T-shaped guide groove (7-1) along the length direction, each second T-shaped guide key (6) is arranged in the second T-shaped guide groove (7-1) and the two through grooves (5-1), each second T-shaped guide key (6) is in sliding connection with the second T-shaped guide groove (7-1), one end of the bottom of each second T-shaped guide groove (7-1) is provided with two fourth stepped holes (7-2), a second bolt (8) is arranged in each fourth stepped hole (7-2), the threaded end of each second bolt (8) is arranged outside the lower surface of the second base (7), the upper surface of each second T-shaped guide key (6) is provided with two second threaded holes (6-1), the bottom surface of each second through groove (5-1) is provided with two third stepped holes (5-2), each second threaded hole (6-1) and one third stepped hole (5-2) are oppositely arranged, each second threaded hole (6-1) and one third stepped hole (5-2) are internally provided with one second bolt (8), and the threaded portion of each second bolt (8) is in threaded connection with one second threaded hole (6-1).
4. A machining method for deburring of a solid cage according to claim 3, wherein: the value range of N is 3-6.
5. The machining method for deburring of a solid cage according to claim 4, wherein: n internal diameter location frock and N external diameter location frock all along circumference equidistance distribution on the workstation of finishing processing unit equipment, and every internal diameter location frock and every external diameter location frock all are through the workstation fixed connection of bolt with finishing processing unit equipment.
6. The machining method for deburring of a solid cage according to claim 5, wherein: a rubber protective layer is arranged on the contact surface of each inner diameter movable clamping jaw (1) and the workpiece, and a rubber protective layer is arranged on the contact surface of each outer diameter movable clamping jaw (5) and the workpiece.
7. The machining method for deburring of a solid cage according to claim 6, wherein: the inner diameter movable clamping jaw (1) is meshed and fixed with the first base (3), and the outer diameter movable clamping jaw (5) is meshed and fixed with the second base (7).
8. The machining method for deburring of a solid cage according to claim 7, wherein: the finishing unit equipment is a deburring machine model LB250S2 produced by Shanghai Popule electromechanical manufacturing Limited liability company.
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| CN111037241A (en) * | 2020-01-14 | 2020-04-21 | 瓦房店阿科比轴承有限公司 | Comb type retainer preparation process |
| CN111906504B (en) * | 2020-08-14 | 2022-07-01 | 中国航发哈尔滨轴承有限公司 | Finish machining method for aviation high-speed bearing retainer |
| CN114986107B (en) * | 2022-07-25 | 2023-05-02 | 湛江德利车辆部件有限公司 | Manufacturing method of camshaft retainer and camshaft retainer |
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