CN111910066A - Heat treatment process for high-strength bolt - Google Patents
Heat treatment process for high-strength bolt Download PDFInfo
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- CN111910066A CN111910066A CN202010869114.5A CN202010869114A CN111910066A CN 111910066 A CN111910066 A CN 111910066A CN 202010869114 A CN202010869114 A CN 202010869114A CN 111910066 A CN111910066 A CN 111910066A
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- sliding
- clamping
- support
- bolt
- pushing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a high-strength bolt heat treatment process which comprises a clamping sliding and pushing mechanism, a reciprocating meshing mechanism, an L-shaped vertical plate support and slide rails, wherein two groups of slide rails which are symmetrically distributed along the length direction of the L-shaped vertical plate support are arranged on the end surface of the L-shaped vertical plate support; the method solves the problem that the oxide layer on the surface of the high-strength bolt is removed to ensure the cleanness and smoothness of the spiral cutting edge of the high-strength bolt, so that the next electroplating process can be carried out on the high-strength bolt.
Description
Technical Field
The invention relates to the technical field of bolt heat treatment, in particular to a high-strength bolt heat treatment process.
Background
The high-strength bolt is an important fastener and is widely applied to the fields of machine tools, general machinery, automobiles, engineering machinery, electric power engineering, petrochemical industry, bridges, railway vehicle mining machinery, buildings and the like. The product quality and reliability of the device are also frequently seen in daily life of people, and play an important role in the working performance and the structural safety of a host; the high-strength bolt can obtain certain strength, good plasticity, toughness and higher bending strength through heat treatment, and comprehensive mechanical properties such as relaxation and the like and service performance thereof are avoided, so that the quality and reliability of the fastener are ensured;
the common surface oxidation phenomenon can occur after the high-strength bolt is subjected to heat treatment, so that oxide scales appear on the spiral cutting edge of the high-strength bolt, the oxide layers on the surface of the high-strength bolt are removed, the spiral cutting edge of the high-strength bolt is ensured to be neat and smooth, and the next electroplating process can be performed on the high-strength bolt.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that the heat treatment process of the high-strength bolt comprises the following specific steps:
s1, positioning and clamping: the clamping unit is used for clamping bolts of different types and sizes, and abutting and limiting the top end surfaces of the bolts;
s2, screw forward rotation fitting: the reciprocating engagement mechanism rotates clockwise to perform spiral clearance fit with the bolt clamped in the S1;
s3, spiral reverse matching: rotating the reciprocating engagement mechanism anticlockwise to outwards rotate the bolt in the S2 in the screw clearance fit;
s4, checking and collecting: the removal condition of the oxide layer on the surface of the bolt is checked by workers, the oxide layer is collected and placed, and the appearance condition of the oxide layer on the surface of the bolt is recorded;
the above-mentioned oxide layer treatment on the surface of the bolt in the steps S1 to S4 of the bolt heat treatment process needs to be completed by the cooperation of the clamping sliding and pushing mechanism, the reciprocating engagement and rotation mechanism, the L-shaped vertical plate bracket and the slide rail, wherein:
the end face of the L-shaped vertical plate support is provided with two groups of slide rails which are symmetrically distributed along the length direction of the L-shaped vertical plate support, the slide rails are provided with a clamping sliding and pushing mechanism in a rolling and abutting mode, a reciprocating meshing mechanism is arranged right behind the clamping sliding and pushing mechanism, and the reciprocating meshing mechanism is arranged on the inner wall of the L-shaped vertical plate support;
the clamping sliding-pushing mechanism comprises a sliding-pushing support, a hand grip and a clamping unit; the sliding and pushing support is connected to the sliding rail in a rolling mode, the hand grip is symmetrically installed on the outer wall of the sliding and pushing support through bolts, and a plurality of groups of clamping units which are linearly distributed along the length direction of the sliding and pushing support are arranged on the sliding and pushing support; the sliding and pushing support is pushed to move forwards manually by using the hand grip.
The clamping unit comprises a square frame, a linkage shaft lever, a hinged connecting rod, a spherical grab handle, a pulling spring, a fixed platform, a clamping jaw, a turning disc and a limiting triangular bracket; the square frame is arranged on a sliding and pushing support, a linkage shaft lever is arranged on the square frame through a bearing with a seat, an articulated connecting rod is arranged on a rear end shaft head of the linkage shaft lever through a hinge pin, a spherical grab handle is arranged at one end shaft head of the articulated connecting rod through the hinge pin, one end shaft head of a pulling spring is arranged on the sliding and pushing support through a spring support, the other end shaft head of the pulling spring is connected with the articulated connecting rod through the spring support, the front end shaft head of the linkage shaft lever penetrates through the inside of a fixed platform, the fixed platform is arranged on the sliding and pushing support, clamping jaws are uniformly arranged on the fixed platform in a sliding fit mode around the circumferential direction of the fixed platform, the clamping jaws are connected with a turning disc through a cam follower, and the turning disc is arranged on the front end shaft head of the linkage shaft lever through a pin, the limiting triangular bracket is arranged on the square frame; the spherical grab handle is pulled to rotate the hinge rotating connecting rod to control the rotation movement of the linkage shaft rod, the clamping jaw is synchronously controlled to slide on the fixed platform through rotating the turning disc, the pulling spring is pulled to reset, the used spherical grab handle can be operated to be folded by ninety degrees and is locked in the square frame through being folded downwards, and the limiting triangular support is abutted to limit the limit position
The reciprocating engagement mechanism comprises a translation guide rail, a displacement sliding plate, a spur rack, a gear strut, a clamping rotary sleeve rod and a pushing cylinder; the device comprises a translation guide rail, a displacement sliding plate, a gear pillar, a pushing cylinder, a floating joint and a sliding plate, wherein the translation guide rail is symmetrically arranged on an L-shaped vertical plate support through a pin bolt, the translation guide rail is provided with the displacement sliding plate in a sliding fit mode, the bottom end surface of the displacement sliding plate is provided with a plurality of groups of straight racks which are linearly distributed along the length direction of the displacement sliding plate, the straight racks are mutually meshed and rotatably connected with the gear pillar, the gear pillar is uniformly arranged on the L-shaped vertical plate support through a bearing, the gear pillar is provided with a clamping rotary sleeve rod in a spiral fit mode, the pushing cylinder is arranged on the L-shaped vertical plate support through a cylinder seat, and an output shaft; the displacement sliding plate is driven to move on the translation guide rail through the pushing cylinder, so that the spur rack is meshed with the rotating gear support to realize reciprocating forward and reverse rotation, and the clamping and rotating sleeve rod is in spiral clearance fit.
Preferably; the square frame is provided with a gear fixing clamping groove, so that after the clamping distance of the spherical grab handle is adjusted, the spherical grab handle is folded downwards and placed into the gear fixing clamping groove to be locked, and a worker is prevented from carelessly releasing clamping and positioning.
Preferably; transfer the carousel on evenly be provided with arc waist hole, will transfer the carousel on evenly be provided with arc waist hole, be convenient for through transferring the carousel gyration, make arc waist hole come the diameter interval of synchronous movement screens clamping jaw to carry out the screens centre gripping to the bolt of different model sizes, improved the application range of bolt screens centre gripping.
Preferably; translation guide rail on the symmetry be provided with the final stop round pin, will translation guide rail on the symmetry be provided with the final stop round pin, the displacement slide of being convenient for has played the spacing effect of butt when reciprocating translation motion, has protected the displacement slide to take place the butt with other working part when the motion and has interfered, causes the damage of working part to cause mechanical mobility trouble.
The invention has the beneficial effects that:
the clamping unit is used for adjusting clamping positions of the bolts according to different diameter requirements, the used spherical grab handle can be folded by ninety degrees and is placed into the square frame to be locked through downward folding, so that loosening of clamping and positioning of the bolts is avoided, the square frame is locked by three diameter sizes, clamping and positioning of different diameter sizes are met, variability of clamping and positioning of the bolts is improved, and market requirements are met.
The top end face of the bolt is pushed by the limiting triangular support, so that the bolt can be in spiral fit with the clamping and rotating sleeve rod continuously when the bolt is in spiral clearance fit, and the phenomenon of slipping caused during spiral butt joint is prevented, and an oxide layer on the surface of the bolt cannot be effectively removed in a matched mode through spiral winding.
And the clamping and rotating sleeve rod can replace corresponding models according to the bolts with clamping diameter sizes, so that the screw clearance fit of different models and sizes is met.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a heat treatment process for a high strength bolt according to the present invention;
FIG. 2 is a perspective view of the present invention in a primary viewing position;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 4 is a side view perspective of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 4;
FIG. 6 is a schematic top perspective view of the present invention;
FIG. 7 is an enlarged view of a portion of the invention at C of FIG. 6;
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific drawings, and it is to be noted that the embodiments and the features in the embodiments can be combined with each other in the application without conflict.
As shown in fig. 1 to 7, a heat treatment process for a high-strength bolt includes the following steps:
s1, positioning and clamping: the clamping unit 12 is used for clamping bolts of different types and sizes and abutting and limiting the top end faces of the bolts;
s2, screw forward rotation fitting: the reciprocating engagement mechanism 2 rotates clockwise to perform screw clearance fit with the bolt clamped in the S1;
s3, spiral reverse matching: the bolt in the S2 with the screw clearance fit is screwed outwards by the anticlockwise rotation of the reciprocating engagement mechanism 2;
s4, checking and collecting: the removal condition of the oxide layer on the surface of the bolt is checked by workers, the oxide layer is collected and placed, and the appearance condition of the oxide layer on the surface of the bolt is recorded;
the above-mentioned bolt heat treatment process S1 to S4 steps of the oxide layer treatment on the bolt surface require the clamping sliding-pushing mechanism 1, the reciprocating engagement-rotation mechanism 2, the L-shaped vertical plate support 3 and the slide rail 4 to cooperate to complete the oxide layer treatment on the bolt surface, wherein:
two groups of slide rails 4 which are symmetrically distributed along the length direction of the L-shaped vertical plate support 3 are arranged on the end surface of the L-shaped vertical plate support 3, a clamping sliding and pushing mechanism 1 is arranged on each slide rail 4 in a rolling and abutting mode, a reciprocating meshing mechanism 2 is arranged right behind the clamping sliding and pushing mechanism 1, and the reciprocating meshing mechanism 2 is arranged on the inner wall of the L-shaped vertical plate support 3;
the clamping sliding-pushing mechanism 1 comprises a sliding-pushing support 10, a handhold handle 11 and a clamping unit 12; the sliding and pushing support 10 is connected to the sliding rail 4 in a rolling manner, the handhold handles 11 are symmetrically installed on the outer wall of the sliding and pushing support 10 through bolts, and a plurality of groups of clamping units 12 which are linearly distributed along the length direction of the sliding and pushing support are arranged on the sliding and pushing support; the sliding support 10 is pushed to move forwards manually by using the handhold 11.
The clamping unit 12 comprises a square frame 121, a linkage shaft rod 122, an articulated connecting rod 123, a spherical grab handle 124, a pulling spring 125, a fixed platform 126, a clamping jaw 127, a turning disc 128 and a limiting triangular bracket 129; the square frame 121 is arranged on the sliding support 10, a gear fixing clamping groove is formed in the square frame 121, and the square frame 121 is provided with the gear fixing clamping groove, so that the spherical grab handle 124 can be conveniently folded downwards to be placed in the gear fixing clamping to be locked after the clamping distance is adjusted, and a worker is prevented from carelessly releasing clamping and positioning; the square frame 121 is provided with a linkage shaft rod 122 through a bearing with a seat, the rear end of the linkage shaft rod 122 is provided with an articulated connecting rod 123 through a hinge pin, one end of the articulated connecting rod 123 is provided with a spherical grab handle 124 through the hinge pin, one end of the pulling spring 125 is arranged on the sliding and pushing support 10 through a spring support, the other end of the pulling spring 125 is connected with the articulated connecting rod 123 through the spring support, the front end of the linkage shaft rod 122 is penetrated in a fixed platform 126, the fixed platform 126 is arranged on the sliding and pushing support 10, the fixed platform 126 is uniformly provided with clamping jaws 127 around the circumference direction through a sliding fit mode, the clamping jaws 127 are connected with an adjusting disc 128 through a cam follower, the adjusting disc 128 is arranged on the front end of the linkage shaft rod 122 through a pin bolt, the turning disc 128 is uniformly provided with arc-shaped waist holes, so that the turning disc 128 can rotate to synchronously move the diameter intervals of the clamping jaws 127 through the arc-shaped waist holes, thereby clamping bolts of different types and sizes, and improving the use range of bolt clamping; the limit triangular support 129 is arranged on the square frame 121; the spherical grab handle 124 pulls the hinged connecting rod 123 to control the rotation movement of the linkage shaft rod 122, the turning disc 128 rotates to synchronously control the sliding adjustment of the clamping jaw 127 on the fixed platform 126, the pulling spring 125 is pulled to reset, the used spherical grab handle 124 can be operated to be folded by ninety degrees and is placed into the square frame 121 to be locked through being folded downwards, and the limiting triangular support 129 is abutted and limited.
The reciprocating engagement mechanism 2 comprises a translation guide rail 20, a displacement sliding plate 21, a spur rack 22, a gear strut 23, a clamping rotary sleeve rod 24 and a pushing cylinder 25; the translation guide rail 20 is symmetrically arranged on the L-shaped vertical plate support 3 through a pin bolt, the translation guide rail 20 is symmetrically provided with stop pins, and the stop pins are symmetrically arranged on the translation guide rail 20, so that the displacement sliding plate 21 can be abutted and limited during reciprocating translation motion, and the displacement sliding plate 21 is protected from being abutted and interfered with other working parts during motion to damage the working parts, thereby causing the motion fault of machinery; the translation guide rail 20 is provided with a displacement sliding plate 21 in a sliding fit manner, the bottom end face of the displacement sliding plate 21 is provided with a plurality of groups of spur racks 22 which are linearly distributed along the length direction of the displacement sliding plate, the spur racks 22 are in meshed rotary connection with gear pillars 23, the gear pillars 23 are uniformly installed on an L-shaped vertical plate support 3 through bearings, the gear pillars 23 are provided with clamping and rotating sleeve rods 24 in a spiral fit manner, the pushing cylinder 25 is installed on the L-shaped vertical plate support 3 through a cylinder seat, and an output shaft of the pushing cylinder 25 is connected with the displacement sliding plate 21 through a floating joint; the displacement slide plate 21 is driven to move on the translation guide rail 20 through the pushing cylinder 25, so that the spur rack 22 is meshed with the rotating gear support 23 to realize reciprocating forward and reverse rotation, and the clamping and rotating sleeve rod 24 is in spiral clearance fit.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A high-strength bolt heat treatment process is characterized in that: the specific bolt heat treatment process is as follows:
s1, positioning and clamping: the clamping unit (12) is used for clamping bolts of different types and sizes and abutting and limiting the top end face of the bolt;
s2, screw forward rotation fitting: the reciprocating engagement mechanism (2) rotates clockwise to perform screw clearance fit with the bolt clamped in the S1;
s3, spiral reverse matching: the reciprocating engagement mechanism (2) rotates anticlockwise to outwards rotate the bolt in the S2 in the way of screw clearance fit;
s4, checking and collecting: the removal condition of the oxide layer on the surface of the bolt is checked by workers, the oxide layer is collected and placed, and the appearance condition of the oxide layer on the surface of the bolt is recorded;
the oxide layer treatment on the surface of the bolt in the steps of the bolt heat treatment process from S1 to S4 needs to be completed by the cooperation of the clamping sliding and pushing mechanism (1), the reciprocating engagement and rotation mechanism (2), the L-shaped vertical plate bracket (3) and the sliding rail (4), wherein:
two groups of slide rails (4) which are symmetrically distributed along the length direction of the L-shaped vertical plate support (3) are arranged on the end surface of the L-shaped vertical plate support, a clamping sliding and pushing mechanism (1) is arranged on each slide rail (4) in a rolling and abutting mode, a reciprocating meshing mechanism (2) is arranged right behind the clamping sliding and pushing mechanism (1), and the reciprocating meshing mechanism (2) is arranged on the inner wall of the L-shaped vertical plate support (3);
the clamping sliding-pushing mechanism (1) comprises a sliding-pushing support (10), a hand grip (11) and a clamping unit (12); the sliding and pushing support (10) is connected to the sliding rail (4) in a rolling mode, the hand grips (11) are symmetrically installed on the outer wall of the sliding and pushing support (10) through bolts, and a plurality of groups of clamping units (12) which are linearly distributed along the length direction of the sliding and pushing support are arranged on the sliding and pushing support;
the clamping unit (12) comprises a square frame (121), a linkage shaft lever (122), an articulated connecting rod (123), a spherical grab handle (124), a pulling spring (125), a fixed platform (126), a clamping jaw (127), a turning disc (128) and a limiting triangular support (129); the square frame (121) is arranged on the sliding and pushing support (10), a linkage shaft lever (122) is arranged on the square frame (121) through a bearing with a seat, a hinged connecting rod (123) is arranged on a rear end shaft head of the linkage shaft lever (122) through a hinge pin, a spherical grab handle (124) is arranged on one end shaft head of the hinged connecting rod (123) through the hinge pin, one end shaft head of a pulling spring (125) is arranged on the sliding and pushing support (10) through a spring support, the other end shaft head positioned on the pulling spring (125) is mutually connected with the hinged connecting rod (123) through a spring support, the front end shaft head of the linkage shaft lever (122) penetrates through the inside of a fixed platform (126), the fixed platform (126) is arranged on the sliding and pushing support (10), and clamping jaws (127) are uniformly arranged on the fixed platform (126) in a sliding fit manner around the circumferential direction of the fixed platform (126), and the clamping jaw (127) is connected with a turning disc (128) through a cam follower, the turning disc (128) is arranged on the front end shaft head of the linkage shaft rod (122) through a pin bolt, and the limiting triangular support (129) is arranged on the square frame (121).
2. The heat treatment process for the high-strength bolt according to claim 1, wherein: the reciprocating engagement mechanism (2) comprises a translation guide rail (20), a displacement sliding plate (21), a spur rack (22), a gear strut (23), a clamping rotary sleeve rod (24) and a pushing cylinder (25); translation guide rail (20) install on L type riser support (3) through the cotter symmetry, translation guide rail (20) on be provided with displacement slide (21) through sliding fit mode, the bottom terminal surface of displacement slide (21) is provided with multiunit and is linear distribution's spur rack (22) along its length direction, spur rack (22) and gear pillar (23) intermeshing rotate and be connected, gear pillar (23) through the even installation of bearing on L type riser support (3), gear pillar (23) on install card through spiral cooperation mode and revolve loop bar (24), push away put cylinder (25) and install on L type riser support (3) through the cylinder block, the output shaft that pushes away put cylinder (25) connects through floating and displacement slide (21) interconnect.
3. The heat treatment process for the high-strength bolt according to claim 1, wherein: the square frame (121) is provided with a gear fixing clamping groove.
4. The heat treatment process for the high-strength bolt according to claim 1, wherein: arc-shaped waist holes are uniformly formed in the turning disc (128).
5. The heat treatment process for the high-strength bolt according to claim 2, wherein: and stop pins are symmetrically arranged on the translation guide rail (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869114.5A CN111910066A (en) | 2020-08-26 | 2020-08-26 | Heat treatment process for high-strength bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869114.5A CN111910066A (en) | 2020-08-26 | 2020-08-26 | Heat treatment process for high-strength bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111910066A true CN111910066A (en) | 2020-11-10 |
Family
ID=73278785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010869114.5A Withdrawn CN111910066A (en) | 2020-08-26 | 2020-08-26 | Heat treatment process for high-strength bolt |
Country Status (1)
| Country | Link |
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| CN (1) | CN111910066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476068A (en) * | 2020-11-26 | 2021-03-12 | 杭州佳顿智能科技有限公司 | Manufacturing and processing technology of engine camshaft |
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| CN205874551U (en) * | 2016-08-21 | 2017-01-11 | 浙江洲隆机器制造有限公司 | Stainless steel forges with high -efficient even flake device |
| CN106826502A (en) * | 2017-03-20 | 2017-06-13 | 河南工业贸易职业学院 | A kind of bolt clears up derusting device |
| CN209793401U (en) * | 2019-03-18 | 2019-12-17 | 长泰县张艺文五金加工场 | High-efficient rust cleaning device of iron rod |
| CN111113234A (en) * | 2020-01-16 | 2020-05-08 | 张家港市圣鼎源制管有限公司 | Grinding device for threaded steel pipe |
| CN111360666A (en) * | 2020-03-16 | 2020-07-03 | 陈秀兰 | Method for treating iron scale on surface of hot-rolled casting |
| CN211249550U (en) * | 2019-09-20 | 2020-08-14 | 苏州新图精密五金紧固件有限公司 | Rust removal device for nut processing |
| CN111558647A (en) * | 2020-05-28 | 2020-08-21 | 张小闯 | Electrical cabinet metal plate stamping device and metal plate machining method |
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2020
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|---|---|---|---|---|
| JPH1132836A (en) * | 1997-07-16 | 1999-02-09 | Amada Co Ltd | Brush device |
| KR20040092053A (en) * | 2003-04-23 | 2004-11-03 | 이광호 | Remover of pipe scale |
| KR200438131Y1 (en) * | 2006-11-16 | 2008-01-22 | (주)거명정공 | Grinding machine |
| CN201168710Y (en) * | 2008-04-07 | 2008-12-24 | 邯郸钢铁股份有限公司 | Iron scale removing apparatus |
| CN101249631A (en) * | 2008-04-18 | 2008-08-27 | 北京星和众工设备技术有限公司 | Novel rust cleaning machine |
| JP2011224724A (en) * | 2010-04-20 | 2011-11-10 | Mitsubishi Heavy Ind Ltd | Workpiece polishing apparatus |
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| CN205874551U (en) * | 2016-08-21 | 2017-01-11 | 浙江洲隆机器制造有限公司 | Stainless steel forges with high -efficient even flake device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476068A (en) * | 2020-11-26 | 2021-03-12 | 杭州佳顿智能科技有限公司 | Manufacturing and processing technology of engine camshaft |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201110 |
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