CN111468672A - Sharp tooth chain plate shape processing die and processing method - Google Patents
Sharp tooth chain plate shape processing die and processing method Download PDFInfo
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- CN111468672A CN111468672A CN202010437755.3A CN202010437755A CN111468672A CN 111468672 A CN111468672 A CN 111468672A CN 202010437755 A CN202010437755 A CN 202010437755A CN 111468672 A CN111468672 A CN 111468672A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L9/00—Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains
- B21L9/02—Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains of roller-chain or other plate-link type
- B21L9/04—Punching or bending the different parts of the chain links
Abstract
The invention relates to the technical field of chain transmission, and provides a sharp-tooth chain plate appearance processing die and a processing method, aiming at solving the problems that the traditional tooth-shaped chain plate processing is firstly positioned by holes and then mills the sharp-tooth part of a workpiece, so that the production efficiency is low; the problem that a gap exists in hole positioning and the tooth form and hole position precision of a tooth-shaped chain plate is reduced is solved; the upper die mechanism comprises an upper die plate, an upper base plate, a nail seat, a female die cushion block and a female die which are sequentially and fixedly connected from top to bottom, the upper die plate is arranged on a pressure head of the punching machine, two vertical punching nails are symmetrically arranged in an inner cavity of the female die, the upper ends of the punching nails penetrate through the nail seat and are vertically arranged on the bottom end face of the upper base plate, and the lower end of the female die is of a punching cutter tooth structure. The invention is particularly suitable for processing the tine chain plate of the toothed chain and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of chain transmission, in particular to a sharp-tooth chain plate shape processing mold and a processing method.
Background
A tooth-shaped chain is also called a silent chain, belongs to a form of a transmission chain, is an important mechanical basic part with wide application, is mainly used under the working conditions of high speed, heavy load, low noise and large center distance, and has better transmission performance than the tooth-shaped belt transmission, the gear transmission and the roller chain transmission, thereby becoming one of the preferred transmission forms in various industries.
The toothed chain is formed by alternately assembling a series of sharp tooth chain plates and guide plates and connecting pin shafts or combined hinge elements, and hinge joints are arranged between adjacent pitches. The traditional processing flow of the toothed chain plate is that a workpiece is blanked firstly, then the workpiece is positioned by a hole, and a forming cutter on a milling machine is used for milling the sharp tooth part of the workpiece, so that the production efficiency is low; and the hole positioning has a gap, so that the tooth form and hole position precision of the tooth-form chain plate is reduced.
The patent with publication number CN105689633B discloses a processing method of a non-standard tooth-shaped chain and the non-standard tooth-shaped chain, wherein the processing method comprises the steps of firstly adopting a progressive die to precisely punch a plurality of chain plates at the same time, so that the hole and the side edge of each chain plate are both 100% bright; carrying out isothermal quenching treatment on the chain plate, and carrying out carbonitriding treatment on the guide plate; then carrying out composite heat treatment of carbonitriding and isothermal quenching on the pin shaft, and carrying out cryogenic treatment, grinding and polishing; and finally, assembling the chain plate, the guide plate and the pin shaft, and performing pre-tensioning running-in after the assembly is completed, but the processing method has the problem of low production efficiency, and therefore, the die and the method for processing the shape of the sharp-tooth chain plate are provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a sharp-tooth chain plate appearance processing die and a processing method, overcomes the defects of the prior art, has reasonable design and compact structure, and aims to solve the problems that the traditional tooth-shaped chain plate processing is firstly positioned by holes and then mills sharp-tooth parts of workpieces, and the production efficiency is low; the hole positioning has a gap, and the tooth form and hole position precision of the tooth-form chain plate is reduced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a sharp-tooth chain plate appearance processing die comprises an upper die mechanism and a lower die mechanism which are arranged in a matched mode;
the upper die mechanism comprises an upper die plate 1, an upper backing plate 2, a nail seat 3, a female die cushion block 5 and a female die 7 which are fixedly connected in sequence from top to bottom, the upper die plate 1 is arranged on a pressure head of a punching machine, two vertical punching nails 4 are symmetrically arranged in an inner cavity of the female die 7, the upper ends of the punching nails 4 penetrate through the nail seat 3 and are vertically arranged on the bottom end face of the upper backing plate 2, and the lower end of the female die 7 is of a punching cutter tooth structure;
the lower die mechanism comprises a male die 9, a male die holder 11, a lower cushion block 12, a lower template 13, an upper clamping plate 14, an elastic cushion block 15 and a lower clamping plate 16 which are sequentially arranged from top to bottom.
Preferably, a spring ring 6 for buffering is sleeved in the inner cavity of the female die 7.
Preferably, the male die 9 is slidably sleeved with a floating positioning block 8, the lower end edge of the floating positioning block 8 is vertically provided with a plurality of telescopic ejector rods 10, and the telescopic ejector rods 10 are fixedly arranged at the upper end of the male die holder 11.
Preferably, a workpiece groove is formed between the floating positioning block 8 and the upper end face of the male die 9, and the depth of the workpiece groove is 2-5 mm.
Preferably, the elastic cushion block 15 is made of polyurethane.
The invention also provides a processing method based on the sharp-tooth chain plate shape mold, which comprises the following steps:
s1, pretreating the whole metal plate, and punching the pretreated whole metal plate into workpieces with uniform specifications in a large scale;
s2, placing the workpiece on a male die 9 of a lower die mechanism;
s3, starting the punching machine, driving the upper die mechanism to move downwards by the punch, punching the edge of the workpiece by the punching cutter tooth structure at the lower end of the female die 7 in an arc and tooth shape, and synchronously punching the pin hole position of the workpiece by the lower end surface of the punching nail 4;
and S4, returning the punch of the punching machine, ascending the upper die mechanism, and taking out the punch-formed sharp-tooth chain plate.
Preferably, in the step S1, the pretreatment of the whole metal plate includes degreasing, derusting, leveling, polishing and passivating.
Preferably, in step S2, the workpiece is placed in a workpiece groove formed by the floating positioning block 8 and the upper end surface of the punch 9.
(III) advantageous effects
The embodiment of the invention provides a sharp-tooth chain plate shape processing die and a processing method, which have the following beneficial effects:
1. the combined structure of the female die and the male die is matched, so that the arc and tooth-shaped edge punching of the edge of the workpiece can be performed, the arrangement of two punching nails is combined, the processing of the pin shaft hole position in the middle of the sharp-tooth chain plate workpiece can be ensured during edge punching, the sharp-tooth chain plate is formed, and the problem of low production efficiency of the traditional processing mode is solved.
2. The invention synchronously processes hole processing and appearance processing, ensures the position precision of the tooth form and the hole on the tine chain plate, and improves the processing quality of the tine chain plate.
3. The elastic cushion block is arranged, so that the buffering can be reduced, the service life of the die is prolonged, the buffering performance is improved by matching with the spring ring sleeved in the cavity of the female die, and the forming protection of the die on the sharp-tooth chain plate is ensured.
4. Through the combined structure of the floating positioning block and the male die, a workpiece to be processed is placed in a workpiece groove formed between the floating positioning block and the upper end face of the male die, positioning punching of the workpiece is guaranteed, and the formed sharp-tooth chain plate is accurately punched.
Drawings
The above features, technical features, advantages and implementations of a tine link plate profile forming mold and method will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a sharp-tooth chain plate profile processing mold according to the present invention;
FIG. 2 is a blanking diagram of a tine link plate according to the present invention;
FIG. 3 is a schematic view of the structure I in FIG. 2 according to the present invention;
FIG. 4 is a finished view of the tine link plate of the present invention;
FIG. 5 is a schematic structural diagram of a floating positioning block according to the present invention.
In the figure: the device comprises an upper template 1, an upper padding plate 2, a nail seat 3, a female die cushion block 5, a spring ring 6, a female die 7, a floating positioning block 8, a male die 9, a telescopic ejector rod 10, a male die seat 11, a lower padding block 12, a lower template 13, an upper clamping plate 14, an elastic cushion block 15 and a lower clamping plate 16.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 5 and examples:
example 1
A sharp-tooth chain plate appearance processing die comprises an upper die mechanism and a lower die mechanism which are arranged in a matched mode;
the upper die mechanism comprises an upper die plate 1, an upper backing plate 2, a nail seat 3, a female die cushion block 5 and a female die 7 which are fixedly connected in sequence from top to bottom, the upper die plate 1 is arranged on a pressure head of a punching machine, two vertical punching nails 4 are symmetrically arranged in an inner cavity of the female die 7, the upper ends of the punching nails 4 penetrate through the nail seat 3 and are vertically arranged on the bottom end face of the upper backing plate 2, and the lower end of the female die 7 is of a punching cutter tooth structure;
the lower die mechanism comprises a male die 9, a male die holder 11, a lower cushion block 12, a lower template 13, an upper clamping plate 14, an elastic cushion block 15 and a lower clamping plate 16 which are sequentially arranged from top to bottom.
In the embodiment, the concave die 7 is matched with the convex die 9 to punch the edge of the workpiece in an arc shape and a tooth shape, and the arrangement of the two punching nails 4 is combined, so that the processing of the hole position of the pin shaft in the middle of the sharp-tooth chain plate workpiece can be ensured during edge punching, the sharp-tooth chain plate is formed, the problem of low production efficiency of the traditional processing mode is solved, meanwhile, the synchronous processing of hole processing and appearance processing also ensures the position precision of the tooth shape and the hole on the sharp-tooth chain plate, and the processing quality of the sharp-tooth chain plate is improved.
It can be understood that the arrangement of the elastic cushion block 15 can reduce buffering, prolong the service life of the die and ensure the forming protection of the die on the tine chain plate.
In the embodiment, as shown in fig. 1, a spring ring 6 for buffering is sleeved in an inner cavity of the female die 7, so that the punching workpiece is effectively protected, and the rapid forming of the tine link plate is ensured.
In this embodiment, as shown in fig. 1 and 5, the floating locating block 8 is slidably sleeved on the male die 9, the lower end edge of the floating locating block 8 is vertically provided with a plurality of telescopic ejector rods 10, the telescopic ejector rods 10 are fixedly installed at the upper end of the male die base 11, and the floating locating block 8 can be effectively supported by the telescopic ejector rods 10, so that the floating locating block 8 can slide up and down.
In this embodiment, as shown in fig. 1 and 5, a workpiece groove is formed between the floating positioning block 8 and the upper end surface of the punch 9, and the depth of the workpiece groove is 2 to 5 mm, so that a workpiece can be conveniently placed for positioning and punching.
In this embodiment, the elastic cushion block 15 is made of polyurethane, and polyurethane has better stability, chemical resistance, rebound resilience and mechanical properties than a PVC (polyvinyl chloride) foam material, has smaller compression deformability, and has good heat insulation, sound insulation, shock resistance and gas defense properties.
Example 2
The invention also provides a processing method based on the sharp-tooth chain plate shape mold, which comprises the following steps:
s1, pretreating the whole metal plate, and punching the pretreated whole metal plate into workpieces with uniform specifications in a large scale;
s2, placing the workpiece on a male die 9 of a lower die mechanism;
s3, starting the punching machine, driving the upper die mechanism to move downwards by the punch, punching the edge of the workpiece by the punching cutter tooth structure at the lower end of the female die 7 in an arc and tooth shape, and synchronously punching the pin hole position of the workpiece by the lower end surface of the punching nail 4;
and S4, returning the punch of the punching machine, ascending the upper die mechanism, and taking out the punch-formed sharp-tooth chain plate.
In this embodiment, in step S1, the pretreatment of the entire metal plate includes oil removal, rust removal, leveling, polishing, and passivation, so as to improve the performance of the entire metal plate to meet the processing requirements of the tine link plate.
In this embodiment, in step S2, the workpiece is placed in a workpiece groove formed by the floating positioning block 8 and the upper end surface of the punch 9, so as to ensure the positioning effect.
Other undescribed structures refer to example 1.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. A sharp-tooth chain plate appearance processing die is characterized by comprising an upper die mechanism and a lower die mechanism which are matched;
the upper die mechanism comprises an upper die plate, an upper base plate, a nail seat, a female die cushion block and a female die which are fixedly connected in sequence from top to bottom, the upper die plate is arranged on a pressure head of the punching machine, two vertical punching nails are symmetrically arranged in an inner cavity of the female die, the upper ends of the punching nails penetrate through the nail seat and are vertically arranged on the bottom end face of the upper base plate, and the lower end of the female die is of a punching cutter tooth structure;
the lower die mechanism comprises a male die, a male die holder, a lower cushion block, a lower die plate, an upper clamping plate, an elastic cushion block and a lower clamping plate which are sequentially arranged from top to bottom.
2. The profile processing mold for a tine plate as claimed in claim 1, wherein: and a spring ring for buffering is sleeved in the inner cavity of the female die.
3. The profile processing mold for a tine plate as claimed in claim 1, wherein: the male die is sleeved with a floating positioning block in a sliding mode, a plurality of telescopic ejector rods are vertically arranged on the edge of the lower end of the floating positioning block, and the telescopic ejector rods are fixedly arranged at the upper end of the male die base.
4. The tooth chain plate profile processing mold of claim 3, wherein: a workpiece groove is formed between the floating positioning block and the upper end face of the male die, and the depth of the workpiece groove is 2-5 mm.
5. The profile processing mold for a tine plate as claimed in claim 1, wherein: the elastic cushion block is made of polyurethane.
6. A sharp-tooth chain plate shape processing method is characterized by comprising the following steps:
s1, pretreating the whole metal plate, and punching the pretreated whole metal plate into workpieces with uniform specifications in a large scale;
s2, placing the workpiece on a male die of a lower die mechanism;
s3, starting a punching machine, driving an upper die mechanism to move downwards by a punch, punching edges of an arc and a tooth form on the edge of a workpiece by a punching cutter tooth structure at the lower end of a female die, and synchronously punching the pin shaft hole position of the workpiece by the lower end surface of a punching nail;
and S4, returning the punch of the punching machine, ascending the upper die mechanism, and taking out the punch-formed sharp-tooth chain plate.
7. The method for processing the profile of the tine plate as claimed in claim 6, wherein: in step S1, the pretreatment of the whole metal plate includes degreasing, derusting, leveling, polishing, and passivating.
8. The method for processing the profile of the tine plate as claimed in claim 6, wherein: in the step S2, the workpiece is placed in a workpiece groove formed by the floating positioning block and the upper end face of the punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010437755.3A CN111468672A (en) | 2020-05-21 | 2020-05-21 | Sharp tooth chain plate shape processing die and processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010437755.3A CN111468672A (en) | 2020-05-21 | 2020-05-21 | Sharp tooth chain plate shape processing die and processing method |
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| Publication Number | Publication Date |
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| CN111468672A true CN111468672A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010437755.3A Pending CN111468672A (en) | 2020-05-21 | 2020-05-21 | Sharp tooth chain plate shape processing die and processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059101A (en) * | 2020-08-20 | 2020-12-11 | 泉州台商投资区正港工业设计服务中心 | Disposable punch forming device for chain plate production and punching method thereof |
-
2020
- 2020-05-21 CN CN202010437755.3A patent/CN111468672A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059101A (en) * | 2020-08-20 | 2020-12-11 | 泉州台商投资区正港工业设计服务中心 | Disposable punch forming device for chain plate production and punching method thereof |
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