CN107597967B - Method and equipment for manufacturing thickened toothed chain plate - Google Patents
Method and equipment for manufacturing thickened toothed chain plate Download PDFInfo
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- CN107597967B CN107597967B CN201710980705.8A CN201710980705A CN107597967B CN 107597967 B CN107597967 B CN 107597967B CN 201710980705 A CN201710980705 A CN 201710980705A CN 107597967 B CN107597967 B CN 107597967B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 111
- 238000004080 punching Methods 0.000 claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a manufacturing method and equipment of a thickened toothed chain plate, comprising the following steps: A. punching positioning holes B, rough cutting chain plate holes, C, rough cutting tooth shapes, D, rough cutting tooth backs, E, fine cutting tooth shapes, F, fine cutting tooth backs, G, fine cutting chain plate holes, H and chain plate blanking; the manufacturing equipment comprises a frame, wherein a chain plate punching device is arranged on the frame; the chain plate punching device comprises a lower die mechanism, an upper die mechanism is arranged above the lower die mechanism, and a punching driving mechanism is arranged above the upper die mechanism; the lower die mechanism comprises a die plate, a die-cut concave die set is arranged on the die plate, the upper die mechanism comprises a connecting plate, a die-cut convex die set is arranged below the connecting plate, the upper die mechanism further comprises a guide plate, a telescopic column is arranged between the guide plate and the connecting plate, and a spring fixed on the connecting plate is sleeved outside the telescopic column. The invention has the characteristic of greatly improving the product quality.
Description
Technical Field
The invention relates to a chain plate manufacturing method, in particular to a manufacturing method and equipment of a thickened toothed chain plate.
Background
The main function of the engine timing chain is to drive a valve mechanism of the engine, so that an engine inlet valve and an engine exhaust valve are opened or closed at proper time, and the engine cylinder can be ensured to normally suck and exhaust. With the continuous progress of industrial development, advanced technologies such as VVT, turbocharging, GDI and the like are introduced, high-power, high-performance and low-emission engines are continuously appeared, higher requirements are put forward on the reliability and transmission noise of a timing chain, the conventional toothed chain plate cannot meet the requirements of the new technology, a thickened toothed chain plate needs to be developed to meet the use requirements, and when the thinnest part of the wall thickness of the chain plate is smaller than the thickness of the chain plate, the thickened toothed chain plate can be called as the thickened toothed chain plate (the thinnest part of the wall thickness of the chain plate refers to the minimum distance part between a chain plate hole and the outer wall of the chain plate). However, the thickened toothed chain plate is produced by adopting the traditional direct stamping mode, the precision of the bearing surface and the contact surface of the finished product of the chain plate is lower, the finish degree is also poorer, and the assembled chain has poor reliability and larger noise. Therefore, the prior art has the problem of poor product quality.
Disclosure of Invention
The invention aims to provide a manufacturing method and equipment of a thickened toothed chain plate. The invention has the characteristic of greatly improving the product quality.
The technical scheme of the invention is that the manufacturing method of the thickened toothed chain plate comprises the following steps:
A. punching a positioning hole; punching a positioning hole on a steel strip raw material to obtain a product a;
B. rough cutting a link plate hole; positioning the product a, and roughly cutting chain plate holes of the chain plate on the product a to obtain a product b;
C. rough cutting into tooth shapes; positioning the product b, and roughly cutting the tooth-shaped part of the outer edge of the chain plate at the corresponding position on the product b to obtain a product c;
D. rough cutting of the tooth back; positioning the product c, and roughly cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the product c to obtain a product d;
E. finely cutting the tooth shape; positioning the d product, and finely cutting the tooth-shaped part of the outer edge of the chain plate on the d product to obtain an e product;
F. finely cutting the tooth backs; positioning the e-product, and precisely cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the e-product to obtain an f-product;
G. fine cutting chain plate holes; positioning the f product, and precisely cutting the chain plate holes at the corresponding positions on the f product to finish the processing of the chain plate to obtain a g product;
H. blanking a chain plate; and positioning the g-shaped product, cutting off the connection part of the chain plate and the g-shaped product, and finally obtaining a chain plate finished product h.
In the manufacturing method of the thickened toothed chain plate, the reserved finishing allowance of the chain plate holes formed by rough cutting in the product b is 5% -15% of the thickness of the steel strip raw material; the finishing allowance reserved in the tooth-shaped part formed by rough cutting in the product c is 5% -15% of the thickness of the steel strip raw material; the finishing allowance reserved in the tooth back part formed by rough cutting in the d product is 5% -15% of the thickness of the steel strip raw material;
in the manufacturing method of the thickened tooth-shaped chain plate, the positioning mode in the step B is to position the positioning holes through positioning; the positioning mode in the steps C to H is that positioning holes and chain plate holes are respectively positioned through positioning needles.
The equipment for realizing the manufacturing method of the thickened toothed chain plate comprises a frame, wherein a chain plate punching device is arranged on the frame; the chain plate punching device comprises a lower die mechanism arranged on the frame, a corresponding upper die mechanism is arranged above the lower die mechanism, and a punching driving mechanism fixed with the frame is arranged above the upper die mechanism; the lower die mechanism comprises a concave die plate arranged on a frame, a punching concave die set is arranged on the concave die plate along the feeding direction, the upper die mechanism comprises a connecting plate fixed below a punching driving mechanism, a punching convex die set corresponding to the punching concave die set is arranged below the connecting plate, the upper die mechanism further comprises a guide plate arranged below the connecting plate, a telescopic column is arranged between the guide plate and the connecting plate, a spring fixed on the connecting plate is sleeved outside the telescopic column, a group of positioning pins are arranged below the guide plate, and a passing hole corresponding to the punching convex die set is formed in the guide plate.
In the manufacturing equipment of the thickened toothed chain plate, a guide post penetrating through the guide plate is further arranged below the connecting plate, and the concave template is provided with a limit groove corresponding to the guide post.
In the manufacturing equipment of the thickened toothed chain plate, the punching female die comprises a chain plate Kong Cuqie female die, a chain plate tooth form rough cutting female die, a chain plate tooth back rough cutting female die, a chain plate tooth form fine cutting female die, a chain plate tooth back fine cutting female die, a chain plate Kong Jing cutting female die and a blanking female die which are sequentially arranged on the female die plate along the conveying direction; the punching male die set comprises a chain plate Kong Cuqie male die, a chain plate tooth form rough cutting male die, a chain plate tooth back rough cutting male die, a chain plate tooth form fine cutting male die, a chain plate tooth back fine cutting male die, a chain plate Kong Jing cutting male die and a blanking male die which are sequentially arranged on the connecting plate along the feeding direction.
In the manufacturing equipment of the thickened toothed chain plate, the chain plate hole rough cutting male die comprises a chain plate hole male die body, 4 groups of punching cylinder groups are arranged on the chain plate hole male die body, and the number of cylinders in each group of punching cylinder groups is 2; the 4 punching cylinder groups are arranged in an arc shape.
In the manufacturing equipment of the thickened toothed chain plate, the toothed rough cutting male die of the chain plate comprises a toothed male die body, and two toothed punching structures which are symmetrically arranged are arranged on the toothed male die body; the tooth-shaped punching structure comprises a parallelogram body, and chain plate tooth grooves with W-shaped structures are respectively arranged on the upper side and the lower side of the parallelogram body.
In the manufacturing equipment of the thickened toothed chain plate, the chain plate tooth back rough cutting male die comprises a tooth back male die body, wherein an upper tooth back structure and a lower tooth back structure which are symmetrically arranged are arranged at the upper end and the lower end of the tooth back male die body, and a middle tooth back structure is arranged between the upper tooth back structure and the lower tooth back structure; the middle tooth back structure comprises a middle tooth back body, and the upper side and the lower side of the middle tooth back body are provided with symmetrically arranged chain plate tooth back openings; the upper tooth back structure and the lower tooth back structure comprise tooth back bodies, and chain plate tooth back grooves are formed in the tooth back bodies.
Compared with the prior art, the manufacturing process of the thickened toothed chain plate is optimized and improved, the structure of the chain plate is punched step by step, and rough cutting and fine cutting are carried out on the structure of each part, so that the production precision of the chain plate can be effectively improved, the smoothness of bearing surfaces and contact surfaces such as the aperture of the chain plate, the tooth shape of the chain plate and the tooth back of the chain plate can be improved, the assembled chain has higher reliability, and the transmission noise of the chain can be reduced; meanwhile, the specific limiting is carried out on the sequence steps of punching, so that the positioning precision in the punching process can be effectively ensured. In the manufacturing equipment, the upper die mechanism is positioned through the positioning needle, and steel raw materials are fixed through the guide plate, so that deviation in the punching process is prevented, and the punching precision is improved; moreover, through the cooperation of flexible post and spring, the deflector can stretch out and draw back for die-cut terrace die group delays the contact with the steel, and the deflector has sufficient time to fix the steel, improves die-cut precision, improves die-cut quality. In conclusion, the invention has the characteristic of greatly improving the product quality.
Drawings
FIG. 1 is a process flow diagram of steps A-H of the present invention;
FIG. 2 is a schematic view of the construction of the manufacturing apparatus of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic structural view of the punch of the link plate Kong Cuqie;
FIG. 5 is a schematic view of the structure of a rough cutting punch of the tooth form of the link plate;
fig. 6 is a schematic structural view of a link plate tooth back rough cutting punch.
The marks in the drawings are: 1-a frame, 2-a stamping driving mechanism, 3-a chain plate stamping device, 4-a lower die mechanism, 5-an upper die mechanism, 401-a concave die plate, 402-a die-cutting concave die set, 501-a connecting plate, 502-a die-cutting convex die set, 503-a guide plate, 504-a positioning needle, 505-a telescopic column, 506-a spring, 403-a limit groove, 404-a chain plate Kong Cuqie concave die, 405-a chain plate tooth profile rough cutting concave die, 406-a chain plate tooth back rough cutting concave die, 407-a chain plate tooth profile precise cutting concave die, 408-a chain plate tooth back precise cutting concave die, 409-a chain plate Kong Jingqie concave die, 410-a blanking concave die, 507-a chain plate Kong Cuqie convex die, 508-a chain plate tooth profile rough cutting convex die, 509-chain plate tooth back rough cutting male die, 510-chain plate tooth form fine cutting male die, 511-chain plate tooth back fine cutting male die, 512-chain plate Kong Jingqie male die, 513-blanking male die, 514-chain plate hole male die body, 515-punching cylinder group, 516-passing hole, 517-tooth form male die body, 518-tooth form punching structure, 519-parallelogram body, 520-chain plate tooth groove, 521-tooth back male die body, 522-upper tooth back structure, 523-lower tooth back structure, 524-middle tooth back structure, 525-middle tooth back body, 526-chain plate tooth back opening, 527-tooth back body, 528-chain plate tooth back groove and 529-guide plate.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The manufacturing method of the thickened toothed chain plate comprises the following steps: as shown in fig. 1
A. Punching a positioning hole; punching a positioning hole on a steel strip raw material to obtain a product a;
B. rough cutting a link plate hole; positioning the product a, and roughly cutting chain plate holes of the chain plate on the product a to obtain a product b; finishing allowance reserved in the roughly cut chain plate holes is 5% -15% of the thickness of the steel strip raw material;
C. rough cutting into tooth shapes; positioning the product b, and roughly cutting the tooth-shaped part of the outer edge of the chain plate at the corresponding position on the product b to obtain a product c; the finishing allowance reserved in the tooth-shaped part formed by rough cutting is 5% -15% of the thickness of the steel strip raw material;
D. rough cutting of the tooth back; positioning the product c, and roughly cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the product c to obtain a product d; the finishing allowance reserved in the tooth back part formed by rough cutting is 5% -15% of the thickness of the steel strip raw material;
E. finely cutting the tooth shape; positioning the d product, and finely cutting the tooth-shaped part of the outer edge of the chain plate on the d product to obtain an e product;
F. finely cutting the tooth backs; positioning the e-product, and precisely cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the e-product to obtain an f-product;
G. fine cutting chain plate holes; positioning the f product, and precisely cutting the chain plate holes at the corresponding positions on the f product to finish the processing of the chain plate to obtain a g product;
H. blanking a chain plate; and positioning the g-shaped product, cutting off the connection part of the chain plate and the g-shaped product, and finally obtaining a chain plate finished product h.
The positioning mode in the step B is that positioning is carried out on the positioning holes through positioning; the positioning mode in the steps C to H is that positioning holes and chain plate holes are respectively positioned through positioning needles.
The g products are provided with 4 chain plates.
The manufacturing equipment of the thickened toothed chain plate is shown in fig. 2 to 5, and comprises a frame 1, wherein a chain plate punching device 3 is arranged on the frame 1; the chain plate punching device 3 comprises a lower die mechanism 4 arranged on the frame 1, a corresponding upper die mechanism 5 is arranged above the lower die mechanism 4, and a punching driving mechanism 2 fixed with the frame 1 is arranged above the upper die mechanism 5; the lower die mechanism 4 include the die plate 401 of setting on frame 1, be equipped with die-cut concave module 402 along the direction of delivery on the die plate 401, go up die mechanism 5 including fixing the connecting plate 501 in punching press actuating mechanism 2 below, connecting plate 501 below is equipped with the die-cut protruding module 502 corresponding with die-cut concave module 402, go up die mechanism 5 still including setting up deflector 503 in connecting plate 501 below, be equipped with flexible post 505 between deflector 503 and the connecting plate 501, flexible post 505 overcoat is equipped with the spring 506 that is fixed in on the connecting plate 501, deflector 503 below be equipped with a set of locating pin 504, be equipped with on the deflector 503 with die-cut protruding module 502 corresponding passing hole 516.
A guide post 529 penetrating through the guide plate 503 is further disposed below the connecting plate 501, and a limit groove 403 corresponding to the guide post 529 is disposed on the female die plate 401.
The punching female die 402 comprises a chain plate Kong Cuqie female die 404, a chain plate tooth form rough cutting female die 405, a chain plate tooth back rough cutting female die 406, a chain plate tooth form fine cutting female die 407, a chain plate tooth back fine cutting female die 408, a chain plate Kong Jingqie female die 409 and a blanking female die 410 which are sequentially arranged on the female die plate 401 along the feeding direction; the punching convex module 502 comprises a chain plate Kong Cuqie convex die 507, a chain plate tooth profile rough cutting convex die 508, a chain plate tooth back rough cutting convex die 509, a chain plate tooth profile fine cutting convex die 510, a chain plate tooth back fine cutting convex die 511, a chain plate Kong Jingqie convex die 512 and a blanking convex die 513 which are sequentially arranged on the connecting plate 501 along the feeding direction.
The chain plate Kong Cuqie male die 507 comprises a chain plate hole male die body 514, 4 groups of punching cylinder groups 515 are arranged on the chain plate hole male die body 514, and the number of cylinders in each group of punching cylinder groups 515 is 2; the 4 punching cylinder groups 515 are arranged in an arc shape.
The chain plate tooth-shaped rough cutting male die 508 comprises a tooth-shaped male die body 517, and two tooth-shaped punching structures 518 which are symmetrically arranged are arranged on the tooth-shaped male die body 517; the tooth punching structure 518 comprises a parallelogram body 519, and chain plate tooth grooves 520 with a W-shaped structure are respectively arranged on the upper side and the lower side of the parallelogram body 519.
The chain plate tooth back rough cutting punch 509 comprises a tooth back punch body 521, wherein an upper tooth back structure 522 and a lower tooth back structure 523 which are symmetrically arranged are arranged at the upper end and the lower end of the tooth back punch body 521, and a middle tooth back structure 524 is arranged between the upper tooth back structure 522 and the lower tooth back structure 523; the middle tooth back structure 522 comprises a middle tooth back body 525, and the upper side and the lower side of the middle tooth back body 525 are provided with symmetrically arranged chain plate tooth back openings 526; the upper tooth back structure 522 and the lower tooth back structure 523 each include a tooth back body 527, and the tooth back body 527 is provided with a link plate tooth back groove 528.
The shapes of the chain plate tooth form fine cutting male die 510, the chain plate tooth back fine cutting male die 511 and the chain plate Kong Jingqie male die 512 are similar to the chain plate Kong Cuqie male die 507, the chain plate tooth form rough cutting male die 508 and the chain plate tooth back rough cutting male die 509 respectively, but the sizes are different.
The product A refers to a steel belt with a positioning hole, the product B refers to a steel belt with a preliminarily punched chain plate hole, the product C refers to a steel belt with a roughly punched tooth form, the product D refers to a steel belt with a roughly cut tooth back, the product E refers to a steel belt with a finely cut tooth form, the product f refers to a steel belt with a finely cut tooth back, the product g refers to a steel belt with a finely cut chain plate hole group, and the product g has completed punching of the chain plate.
The rough cutting or the fine cutting in the steps A to H refer to punching.
The positioning holes in the step A comprise first positioning holes symmetrically arranged on two sides of the steel strip raw material, a second positioning hole is arranged on a symmetrical shaft between the two first positioning holes, the whole of the first positioning holes and the whole of the second positioning holes are distributed in a convex arc structure, and the second positioning holes outwards deviate from the positions of the first positioning holes by a distance of a tooth-shaped groove along the symmetrical shaft.
Step B roughly cuts 4 chain plate hole groups of chain plates which are arranged up and down on the product a, wherein the number of the chain plate holes in each chain plate hole group is 2, and the chain plate holes are horizontally arranged in parallel;
the number of the tooth-shaped parts punched in the step C is 2, and the 2 tooth-shaped parts are symmetrically arranged and are respectively positioned between two upper and lower adjacent chain plate hole groups.
The die-cut back of tooth part in step D includes upper portion back of tooth part, middle back of tooth part and lower back of tooth part, upper portion back of tooth part be located the link joint hole group top at the uppermost, middle back of tooth part be located between two middle link joint hole groups, lower back of tooth part is located the link joint hole group below of lowermost.
The feeding end and the discharging end of the frame 1 are respectively provided with a coiled steel conveying device and a coiled steel winding device.
The positioning hole punching device comprises three positioning hole female dies fixed on the frame, and a punching rod is correspondingly arranged above each positioning hole female die and connected with a hydraulic cylinder.
The stamping driving mechanism can be a hydraulic cylinder or an air cylinder.
The upper tooth back structure is positioned above the uppermost chain plate hole group, the middle tooth back structure is positioned between the two middle chain plate hole groups, and the lower tooth back structure is positioned below the lowermost chain plate hole group.
The upper tooth-shaped part of the tooth-shaped punching structure is positioned between the two upper chain plate hole groups, and the lower tooth-shaped part is positioned between the two lower chain plate hole groups.
The working process of the invention comprises the following steps: under the action of a coiled steel conveying device and a coiled steel winding device, punching a positioning hole through a positioning hole punching device, and punching corresponding parts of a chain plate through a chain plate Kong Cuqie male die 507, a chain plate tooth profile rough cutting male die 508, a chain plate tooth back rough cutting male die 509, a chain plate tooth profile fine cutting male die 510, a chain plate tooth back fine cutting male die 511, a chain plate Kong Jingqie male die 512 and a blanking male die 513 sequentially; the punching operation steps in the steps C to H are as follows: the upper die mechanism is driven to move downwards through the stamping driving mechanism, so that a positioning needle in the upper die mechanism is inserted into a positioning hole and a chain plate hole to realize positioning of a steel strip material to be stamped, the upper die mechanism continues to move downwards, a guide plate in the upper die mechanism compresses the steel strip material to be stamped, the upper die mechanism continues to move downwards, a stamping male die in the upper die mechanism is contacted with a raw material to be stamped and is stamped, waste generated by stamping is sent downwards through a stamping female die in the lower die mechanism, and the die cutting Kong Liuzai of the steel strip material generated by stamping is completed.
Claims (1)
1. The manufacturing equipment of the thickened toothed chain plate is characterized by comprising a frame (1), wherein a chain plate punching device (3) is arranged on the frame (1); the chain plate punching device (3) comprises a lower die mechanism (4) arranged on the frame (1), an upper die mechanism (5) is arranged above the lower die mechanism (4), and a punching driving mechanism (2) fixed with the frame (1) is arranged above the upper die mechanism (5); the lower die mechanism (4) comprises a concave die plate (401) arranged on the frame (1), and a punching concave die set (402) is arranged on the concave die plate (401); the upper die mechanism (5) comprises a connecting plate (501) fixed below the stamping driving mechanism (2), a punching convex module (502) corresponding to the punching concave module (402) is arranged below the connecting plate (501), the upper die mechanism (5) further comprises a guide plate (503) arranged below the connecting plate (501), a telescopic column (505) is arranged between the guide plate (503) and the connecting plate (501), a spring (506) is sleeved outside the telescopic column (505), a group of positioning pins (504) are arranged below the guide plate (503), and a passing hole (516) corresponding to the punching convex module (502) is formed in the guide plate (503);
a guide column (529) penetrating through the guide plate (503) is further arranged below the connecting plate (501), and a limit groove (403) corresponding to the guide column (529) is formed in the female die plate (401);
the punching concave module (402) comprises a chain plate Kong Cuqie concave die (404), a chain plate tooth form rough cutting concave die (405), a chain plate tooth back rough cutting concave die (406), a chain plate tooth form fine cutting concave die (407), a chain plate tooth back fine cutting concave die (408), a chain plate Kong Jingqie concave die (409) and a blanking concave die (410) which are sequentially arranged on the concave die plate (401) along the conveying direction; the punching convex module (502) comprises a chain plate Kong Cuqie convex die (507), a chain plate tooth profile rough cutting convex die (508), a chain plate tooth back rough cutting convex die (509), a chain plate tooth profile fine cutting convex die (510), a chain plate tooth back fine cutting convex die (511), a chain plate Kong Jingqie convex die (512) and a blanking convex die (513) which are sequentially arranged on the connecting plate (501) along the conveying direction;
the chain plate Kong Cuqie male die (507) comprises a chain plate hole male die body (514), 4 groups of punching cylinder groups (515) are arranged on the chain plate hole male die body (514), and the number of cylinders in each group of punching cylinder groups (515) is 2; the 4 punching cylinder groups (515) are arranged in an arc shape;
the chain plate tooth-shaped rough cutting male die (508) comprises a tooth-shaped male die body (517), and two tooth-shaped punching structures (518) which are symmetrically arranged are arranged on the tooth-shaped male die body (517); the tooth-shaped punching structure (518) comprises a parallelogram body (519), and chain plate tooth grooves (520) with a W-shaped structure are respectively arranged on the upper side and the lower side of the parallelogram body (519);
the chain plate tooth back rough cutting male die (509) comprises a tooth back male die body (521), wherein an upper tooth back structure (522) and a lower tooth back structure (523) which are symmetrically arranged are arranged at the upper end and the lower end of the tooth back male die body (521), and a middle tooth back structure (524) is arranged between the upper tooth back structure (522) and the lower tooth back structure (523); the middle tooth back structure (524) comprises a middle tooth back body (525), and chain plate tooth back openings (526) which are symmetrically arranged are arranged on the upper side and the lower side of the middle tooth back body (525); the upper tooth back structure (522) and the lower tooth back structure (523) comprise tooth back bodies (527), and chain plate tooth back grooves (528) are formed in the tooth back bodies (527);
the manufacturing method of the manufacturing equipment of the thickened toothed chain plate comprises the following steps:
A. punching a positioning hole; punching a positioning hole on a steel strip raw material to obtain a product a;
B. rough cutting a link plate hole; positioning the product a, and roughly cutting chain plate holes of the chain plate on the product a to obtain a product b;
C. rough cutting into tooth shapes; positioning the product b, and roughly cutting the tooth-shaped part of the outer edge of the chain plate at the corresponding position on the product b to obtain a product c;
D. rough cutting of the tooth back; positioning the product c, and roughly cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the product c to obtain a product d;
E. finely cutting the tooth shape; positioning the d product, and finely cutting the tooth-shaped part of the outer edge of the chain plate on the d product to obtain an e product;
F. finely cutting the tooth backs; positioning the e-product, and precisely cutting the tooth back part of the outer edge of the chain plate at the corresponding position on the e-product to obtain an f-product;
G. fine cutting chain plate holes; positioning the f product, and precisely cutting the chain plate holes at the corresponding positions on the f product to finish the processing of the chain plate to obtain a g product;
H. blanking a chain plate; positioning the g-shaped product, cutting off the connection part of the chain plate and the g-shaped product, and finally obtaining a chain plate finished product h;
finishing allowance reserved in a chain plate hole formed by rough cutting in the product b is 5% -15% of the thickness of the steel strip raw material; the finishing allowance reserved in the tooth-shaped part formed by rough cutting in the product c is 5% -15% of the thickness of the steel strip raw material; the finishing allowance reserved in the tooth back part formed by rough cutting in the d product is 5% -15% of the thickness of the steel strip raw material;
the positioning mode in the step B is that positioning is carried out on the positioning holes through positioning; the positioning mode in the steps C to H is that positioning holes and chain plate holes are respectively positioned through positioning needles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980705.8A CN107597967B (en) | 2017-10-19 | 2017-10-19 | Method and equipment for manufacturing thickened toothed chain plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710980705.8A CN107597967B (en) | 2017-10-19 | 2017-10-19 | Method and equipment for manufacturing thickened toothed chain plate |
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| CN107597967A CN107597967A (en) | 2018-01-19 |
| CN107597967B true CN107597967B (en) | 2024-03-26 |
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| CN111250592A (en) * | 2020-01-19 | 2020-06-09 | 湖南徕木电子有限公司 | Preparation method of knitting needle selection stitch component |
| CN111906242B (en) * | 2020-07-08 | 2022-03-18 | 青岛征和工业股份有限公司 | Sharp tooth chain plate forming die and using method |
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