CN114160707B - Flat wire forming stamping die and stamping equipment - Google Patents
Flat wire forming stamping die and stamping equipment Download PDFInfo
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- CN114160707B CN114160707B CN202210016555.XA CN202210016555A CN114160707B CN 114160707 B CN114160707 B CN 114160707B CN 202210016555 A CN202210016555 A CN 202210016555A CN 114160707 B CN114160707 B CN 114160707B
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- flat wire
- die base
- stamping
- upper die
- lower die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
本发明涉及冲压加工技术领域，特别涉及一种扁线成型冲压模具及冲压设备，包括上模座以及与上模座相适配的下模座，所述上模座和下模座合模形成供待冲压的扁线穿过的过料空间，所述上模座底端设置有至少一组滚轮，所述滚轮用于合模时与扁线压合，以使得扁线在压合部位弯折。本发明提供的扁线成型冲压模具在上模座增设滚轮，在模具对扁线进行冲压合模时，能够以滚动摩擦替代滑动摩擦，以避免挤压刮擦而导致的损伤问题，从而有效保证扁线的质量和扁线电机的性能。其结构简单，成本较低，针对不同冲压形状的材料，均可适用，通用性强。
The present invention relates to the field of stamping processing technology, and in particular to a flat wire forming stamping die and stamping equipment, including an upper die base and a lower die base matched with the upper die base, wherein the upper die base and the lower die base are combined to form a material passing space for the flat wire to be stamped to pass through, and at least one group of rollers are provided at the bottom end of the upper die base, and the rollers are used to press the flat wire when the mold is closed, so that the flat wire is bent at the pressing position. The flat wire forming stamping die provided by the present invention adds rollers to the upper die base, and when the mold is stamping and closing the flat wire, rolling friction can be used instead of sliding friction to avoid damage caused by extrusion and scratching, thereby effectively ensuring the quality of the flat wire and the performance of the flat wire motor. It has a simple structure and low cost, and is applicable to materials with different stamping shapes, and has strong versatility.
Description
Technical Field
The invention relates to the technical field of stamping processing, in particular to a flat wire forming stamping die and stamping equipment.
Background
With the development of new energy automobiles, the duty ratio of the flat wire motor in practical application is higher and higher. Meanwhile, along with the improvement of the whole vehicle voltage platform, the requirement on the insulation performance of the flat wire enameled wire is higher and higher. In the process of manufacturing the flat wire motor, the flat wire forming is the process with the greatest damage to the wire. The insulated wire with excessive damage can cause poor insulation, and safety accidents can be caused in serious cases.
In the prior art, the flat wire is mainly manufactured by a stamping forming process, wherein the stamping forming process is a processing forming method for obtaining a workpiece with a required shape and size by applying external force to plates, strips, pipes, sectional materials and the like by using a press machine and a die to enable the plates, the strips, the pipes, the sectional materials and the like to generate plastic deformation or separation. As shown in fig. 1, a straight flat wire needs to be punched into a shape having a secondary bending by a die. The die is shown in fig. 2, and comprises an upper die provided with a punch and a lower die for placing the flat wire, wherein the lower die is fixed on the concrete working principle, the upper die is used for stamping downwards in the vertical direction and pushing the flat wire to finish deformation, and the die is simple in structure and high in forming efficiency.
However, in the stamping deformation process of the stamping die, as shown in fig. 3, friction sliding occurs on the initial contact surface and the final contact surface of the upper die and the flat wire, as shown by the thickened wire, so that the enameled insulating layer of the flat wire is damaged due to extrusion scraping of the die, in addition, the friction deformation at the bending position is large, and serious damage is caused, so that the quality of the flat wire and the performance of the flat wire motor are affected.
Disclosure of Invention
In order to solve the defect that a flat wire is damaged due to extrusion scraping of a die in the stamping process in the prior art, the invention provides a flat wire forming stamping die which comprises an upper die holder and a lower die holder matched with the upper die holder, wherein the upper die holder and the lower die holder are matched to form a material passing space for the flat wire to be stamped to pass through, at least one group of rollers are arranged at the bottom end of the upper die holder, and the rollers are used for pressing the flat wire when the upper die holder is matched with the flat wire so as to bend the flat wire at a pressing part.
In an embodiment, shaft holes are formed in two sides of the upper die holder, and the rollers are rotatably arranged on the shaft holes of the upper die holder.
In an embodiment, the lower die holder is provided with at least one set of rollers at a bending position greater than or equal to 90 degrees.
In an embodiment, the material passing space comprises a material passing groove arranged at the stamping part of the upper die holder and a material passing convex ridge arranged at the stamping part of the lower die holder, wherein the material passing groove is matched with the material passing convex ridge, and the material passing space further comprises a clamping groove arranged at the tail part of the lower die holder.
In an embodiment, the die further comprises a limiting block arranged between the upper die holder and the lower die holder, wherein the limiting block is fixed on the lower die holder, and the height of the limiting block is flush with the height of the lower die holder so as to prevent the upper die holder from being over pressed.
In one embodiment, the stamping device further comprises a base, a guide rail seat vertically arranged on the base and a guide block in sliding connection with the guide rail seat, wherein the guide block is fixedly connected with the upper die holder, so that the guide block drives the upper die holder to stamp in the vertical direction.
In an embodiment, still include and be located the automatic subassembly that compresses tightly of overfeeding space department and set up on the guide block, automatic subassembly that compresses tightly includes:
The material pressing column is slidably and vertically arranged in the guide block, and a through groove arranged along the vertical direction is formed in the middle of the material pressing column;
The spring is arranged in the guide block, one end of the spring is connected with the material pressing column, and the other end of the spring is connected with the guide block;
The fixing pin horizontally penetrates through the through groove and is fixed on the guide block;
When the die assembly and stamping are carried out, the material pressing column is slowly contacted with the lower die holder and moves upwards to complete die assembly under the compression action of the spring, and finally, the material pressing column is propped against the flat wire of the lower die holder due to the reaction force of the spring compression.
In one embodiment, a manual compression assembly is also included at the void and secured above the rail seat.
In an embodiment, the afterbody of die holder still is provided with spacing subassembly, spacing subassembly includes:
The device comprises a lower die holder, a limiting strip, a positioning groove and a positioning groove, wherein the limiting strip is arranged at the bottom of the lower die holder and can reciprocate along the feeding direction;
the limiting rod is vertically arranged at the tail end of the limiting strip, and the flat wire penetrates in the feeding direction of the material passing space until the end of the flat wire abuts against the limiting rod;
and the adjusting pin penetrates through the positioning through groove, and the distance between the limiting rod and the lower die holder is adjusted by rotating the adjusting pin and moving the limiting strip.
The invention also provides stamping equipment, and the flat wire forming stamping die is adopted.
Based on the above, compared with the prior art, the flat wire forming stamping die provided by the invention is additionally provided with the roller on the upper die holder, and can replace sliding friction with rolling friction when the die performs stamping die assembly on the flat wire, so that the problem of damage caused by extrusion scraping is avoided, and the quality of the flat wire and the performance of a flat wire motor are effectively ensured. The stamping die is simple in structure, low in cost, applicable to materials with different stamping shapes and high in universality.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to the drawings without any inventive effort for a person skilled in the art, where the positional relationship described in the drawings in the following description, unless otherwise specified, are all based on the directions in which the components are depicted in the drawings.
Fig. 1 is a schematic view of a structure of a flat wire press-formed for a flat wire motor;
FIG. 2 is a schematic diagram of a conventional mold structure;
FIG. 3 is a state diagram of the press-down process of the upper die of FIG. 2;
Fig. 4 is a structural exploded view of a flat wire forming and stamping die provided by the invention;
Fig. 5 is a state diagram of an upper die pressing process of the flat wire forming stamping die;
fig. 6 is an overall perspective view of a flat wire forming and stamping die provided by the invention;
fig. 7 is an overall front view of a flat wire forming and stamping die provided by the invention;
fig. 8 is an overall side view of a flat wire forming stamping die provided by the invention;
fig. 9 is an overall exploded view of a flat wire forming and stamping die provided by the invention;
Fig. 10 is a schematic structural view of the automatic compressing assembly and the guide block.
Reference numerals:
10 upper die holder 20 lower die holder 30 material passing space
31 Pass trough 32 pass convex ridge 40 gyro wheel
52 Guide block 51 guide rail seat 11 shaft hole
33 Draw-in groove 21 stopper 90 base
60 Automatic compression assembly 61 material pressing column 61a through groove
62 Spring 63 fixed pin 70 manual compression assembly
80 Spacing subassembly 81 spacing 81a location logical groove
82 Stop lever 83 adjusting pin
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, technical features designed in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and all other embodiments obtained by those skilled in the art without making creative efforts on the basis of the embodiments of the present invention are all within the scope of protection of the present invention.
In the description of the present invention, it should be noted that all terms used in the present invention (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs and are not to be construed as limiting the present invention, and it should be further understood that the terms used in the present invention should be construed as having meanings consistent with the meanings of the terms in the context of the present specification and the related art and should not be construed in an idealized or overly formal sense unless expressly so defined herein.
The invention provides a flat wire forming and stamping die, which comprises an upper die holder 10 and a lower die holder 20 matched with the upper die holder 10, wherein the upper die holder 10 and the lower die holder 20 are clamped to form a material passing space 30 for a flat wire to be stamped to pass through, at least one group of rollers 40 are arranged at the bottom end of the upper die holder 10, and the rollers 40 are used for pressing the flat wire during clamping so as to bend the flat wire at a pressing part.
In particular, as shown in fig. 4 and 5, the stamping die includes an upper die holder 10 and a lower die holder 20, wherein the die-closing shapes of the upper die holder 10 and the lower die holder 20 should conform to the shape of the flat wire to be manufactured, in addition, the upper die holder 10 and the lower die holder 20 form a material passing space 30 for the flat wire to be stamped to pass through in the die-closing state, and the height of the material passing space 30 should be matched with the height of the flat wire, so that the flat wire is trapped in the material passing space 30, ensuring accurate die-closing and bending, and avoiding flattening of the flat wire in height.
The bottom end of the upper die holder 10 is provided with at least one set of rollers 40 at the bending position, the rollers 40 are rotatably embedded on the upper die holder 10, and preferably, the width of the rollers 40 is greater than or equal to the width of the flat wire to be processed. When the die performs stamping die assembly on the flat wire, rolling friction can be used for replacing sliding friction, so that the problem of damage caused by extrusion scraping is avoided, and the quality of the flat wire and the performance of a flat wire motor are effectively ensured.
As a preferable solution, the roller 40 is detachably disposed on the upper die holder 10, and the size of the roller 40 can be changed to adapt to flat wires with different specifications, so that the flat wires have more versatility.
It should be noted that, the arrangement of the roller 40 is not limited to that shown in the drawings, and those skilled in the art can arrange the roller 40 at a plurality of bending positions of the upper die holder 10 according to the bending shape of the actual flat wire.
Preferably, the two sides of the upper die holder 10 are provided with shaft holes 11, and the roller 40 is rotatably arranged on the shaft holes 11 of the upper die holder 10.
In particular, a roller is disposed in the middle of the roller 40, wherein the roller 40 is rotatably connected with the roller, and the roller is rotatably connected with the shaft hole 11 in a manner of being fixed on the shaft hole. Preferably, the roller 40 is rotatably connected with the shaft hole 11 of the upper die holder 10 through a bearing.
Preferably, the lower die holder 20 is provided with at least one set of rollers at a bending position of 90 ° or more.
In specific implementation, similar to the manner of setting the rollers 40, at least one set of rollers is also disposed on the lower die holder 20 at a bending position greater than or equal to 90 °, where the number of rollers should be set according to the bending angle required by the actual flat wire shape. Preferably, the width of the roller is greater than or equal to the width of the flat wire to be processed. When the die is used for stamping and closing the flat wire, rolling friction can be used for replacing sliding friction, so that the problem of damage caused by extrusion scraping is further avoided. In addition, the roller can be rotatably connected with the lower die holder 20 through a bearing, and the roller shaft can be connected with the lower die holder 20 through a mode that the middle part of the roller penetrates through the roller shaft. As a preferred embodiment, the roller is detachably disposed on the lower die holder 20.
Preferably, the material passing space 30 includes a material passing groove 31 disposed at a punching position of the upper die holder 10 and a material passing ridge 32 disposed at a punching position of the lower die holder 20, wherein the material passing groove 31 is matched with the material passing ridge 32, and the material passing space 30 further includes a clamping groove 33 disposed at a tail portion of the lower die holder 20.
In practice, as shown in fig. 4 and 6, the depth and width of the passing groove 31, the passing ridge 32 and the clamping groove 33 depend on the height and width of the flat wire. Specifically, the passing groove 31 and the passing ridge 32 are arranged at the punching position, the specific shape of the passing groove is in accordance with the shape obtained by punching, and the sum of the heights of the passing ridge 32 and the flat wire is the depth of the passing groove 31. The depth and width of the clamping groove 33 should be such that it can fully accommodate the flat wire to be punched. Preferably, the open end of the material passing groove 31 is rounded, so that the edge of the flat wire can be effectively prevented from being worn during punching. As a preferred solution, the flat wire may be manually fed into the feeding space 30 and retained in the clamping groove 33, and the flat wire may be fed into the clamping groove 33 by an electric push rod mechanism or other feeding mechanism.
As another preferable scheme, the surface roughness of the passing groove 31 and the passing ridge 32 is less than or equal to ra1.6 μm, so as to ensure smooth contact of the flat wire in the passing groove 31 and the passing ridge 32, and effectively avoid the occurrence of indentation and scratch caused by mutual friction of the flat wire in the stamping and die closing process.
Preferably, the die further comprises a limiting block 21 arranged between the upper die holder 10 and the lower die holder 20, wherein the limiting block 21 is fixed on the lower die holder 20, and the height of the limiting block is level with the height of the lower die holder 20 so as to prevent the upper die holder 10 from being over-pressed.
In the embodiment, as shown in fig. 8 and 9, in order to avoid excessive stamping of the upper die holder 10 and further increase wear of the flat wire at the bending portion, the lower die holder 20 is provided with a stopper 21 at a position located at the stamping portion. The height of the limiting block 21 is flush with the height of the lower die holder 20, and after die assembly is performed, the top of the limiting block 21 can abut against the bottom of the upper die holder 10, so that the upper die holder 10 is limited to be further pressed down, and the device is effectively protected.
Preferably, the die further comprises a base 90, a guide rail seat 51 vertically arranged on the base 90 and a guide block 52 in sliding connection with the guide rail seat 51, wherein the guide block 52 is fixedly connected with the upper die holder 10, so that the guide block 52 drives the upper die holder 10 to punch in the vertical direction.
In the specific implementation, as shown in fig. 6, 7, 8 and 9, the guide block 52 is matched with the guide rail seat 51, and the guide block 52 can move along the guide rail seat 51 towards the lower die holder 20 under the limit of the guide rail seat 51. The top of the guide block 52 is provided with a T-shaped slot, which may be directly connected to one of the power sources of the cylinder, the electric cylinder, the motor, etc., or indirectly connected to one of the power sources of the cylinder, the electric cylinder, the motor, etc. through a transmission mechanism such as a screw-nut mechanism, a synchronous belt mechanism, a gear mechanism, a link mechanism, etc.
Preferably, the guide rail seat 51 is fixed on the base 90, and includes a guide rail portion at the top and a supporting portion below, where the guide rail portion is a groove extending downward and used for limiting the guide block 52 from sliding up and down, and the supporting portion is used for placing the lower die holder 20 thereon. Through the arrangement, the cost can be effectively saved, and the assembly time is reduced.
Preferably, the automatic pressing assembly 60 is positioned at the material passing space 30 and arranged on the guide block 52, the automatic pressing assembly 60 comprises a pressing column 61, a spring 62, a fixing pin 63 and a pressing rod, wherein the pressing column 61 is slidably and vertically arranged inside the guide block 52, a through groove 61a is formed in the middle of the pressing column 61 and is arranged in the vertical direction, one end of the spring 62 is arranged inside the guide block 52 and connected with the pressing column 61, the other end of the spring is connected with the guide block 52, the fixing pin 63 horizontally penetrates through the through groove 61a and is fixed on the guide block 52, and when the die assembly and the pressing column 61 is in die assembly and pressing, the pressing column is gradually contacted with the lower die holder 20 and moves upwards to complete die assembly under the compression effect of the spring 62, and finally the pressing column is pressed against a flat line of the lower die holder 20 due to the compression reaction force of the spring 62.
In particular, as shown in fig. 10, the automatic pressing assembly 60 operates on the principle that in a non-punching state, the spring is relaxed, the pressing column 61 is suspended on the guide block 52 under the restriction of the spring 62 and the fixing pin 63, and in a die closing punching process, the pressing column 61 is slowly contacted with the lower die holder 20, and then moves upwards to complete die closing under the compression action of the spring 62. Because it is in the position of the passing space 30, the pressing column 61 will just press against the flat line of the lower die holder 20 due to the reaction force of the spring 62. Through the structure, the flat wire which is being punched can be effectively pressed, the flat wire is prevented from bouncing, and the punching stability is ensured.
It should be noted that, in order to consider the distribution rationality of the structure, the automatic pressing assembly 60 is disposed on the guide block 52, and according to the actual structural requirement, a person skilled in the art may just set the automatic pressing assembly 60 at a position that follows the stamping movement of the upper die holder 10 and can press the flat wire during die assembly and stamping.
Preferably, a manual hold-down assembly 70 is also included at the void 30 and secured above the rail seat 51.
In specific implementation, the manual pressing assembly 70 includes a fixing frame fixed on the guide rail seat 51, and a connecting rod pressing mechanism disposed inside the fixing frame, where one end of the connecting rod pressing mechanism is connected to a pressing handle, and the other end of the connecting rod pressing mechanism is connected to a pressing block, and the pressing handle is broken off with the fingers or pressed down by the upper hand, so that the connecting rod pressing mechanism can drive the pressing block to press against a flat wire of the lower die holder 20, thereby effectively pressing the flat wire being punched, preventing the flat wire from bouncing, and ensuring the stability of punching.
Preferably, the tail of the lower die holder 20 is further provided with a limiting component 80, the limiting component 80 comprises a limiting strip 81, a limiting rod 82, an adjusting pin 83 and an adjusting pin 83, the limiting strip 81 is arranged at the bottom of the lower die holder 20 and can reciprocate along the feeding direction, a positioning through groove 81a which is arranged along the feeding direction is formed in the limiting strip 81, scale values are further arranged on the outer side of the positioning through groove 81a, the limiting rod 82 is vertically arranged at the tail end of the limiting strip 81, the flat wire penetrates through the end of the flat wire in the feeding direction of the feeding space 30 until the end of the flat wire abuts against the limiting rod 82, and the adjusting pin 83 penetrates through the positioning through groove 81a, and the distance between the limiting rod 82 and the lower die holder 20 is adjusted by rotating the adjusting pin 83 and moving the limiting strip 81.
In specific implementation, as shown in fig. 6, 7 and 9, the working principle is that the limit bar 81 is provided with scale values, the distance between the limit bar 82 and the lower die holder 20 is converted according to the actual flat wire length and the required punching position, the adjusting pin 83 is unscrewed, the limit bar 81 is adjusted to the converted distance position, and the adjusting pin 83 is screwed. Finally, the flat wire is penetrated in the feeding direction of the feeding space 30 until the tail end of the flat wire abuts against the limiting rod 82, namely, one end of the feeding direction is limited, so that the flat wire is punched at a proper position. Through the structure, the flat wire forming machine can adapt to flat wire forming with different specification and size requirements, the die does not need to be replaced again, and the universality of the die is effectively improved.
Preferably, according to the present invention, the manual adjustment mode of the limiting assembly 80 may be replaced by controlling the movement of the limiting bar 81 and thus the movement of the limiting rod 82 to a proper position by a servo motor, thereby realizing the automatic operation.
The invention also provides stamping equipment, and the flat wire forming stamping die is adopted.
As a preferable mode, the punching apparatus may be provided with a cutting mechanism for cutting the flat wire, a conveying insertion mechanism for conveying the cut flat wire into the punching die by using the flat wire forming punching die as described above, a conveying take-out mechanism for taking out the punched flat wire after punching, and the like.
Further, in the production line, from the production processing of the flat wire to the completion of the stamping, to the assembly of the stamped flat wire into the motor, the flat wire forming stamping die may be applied to part or all of the motor production line.
In summary, compared with the prior art, the flat wire forming stamping die provided by the invention has the advantages of simple structure, low cost, applicability to materials with different stamping shapes and strong universality. And can effectively guarantee that the flat wire surface that punches out can not harm to the quality of flat wire and the performance of flat wire motor are effectively guaranteed.
In addition, it should be understood by those skilled in the art that although there are many problems in the prior art, each embodiment or technical solution of the present invention may be modified in only one or several respects, without having to solve all technical problems listed in the prior art or the background art at the same time. Those skilled in the art will understand that nothing in one claim should be taken as a limitation on that claim.
Although terms such as upper die holder, lower die holder, blanking space, blanking slot, guide block, shaft hole, blanking ridge, guide rail seat, roller, clamping slot, stopper, base, automatic hold-down assembly, blanking post, through slot, spring, fixing pin, manual hold-down assembly, stopper bar, positioning through slot, stopper bar, adjustment pin are more used herein, the possibility of using other terms is not precluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner that does not depart from the spirit of the invention by any of the additional limitations, the terms "first," "second," etc. (if any) in the description of embodiments of the invention and in the claims and drawings described above are intended to distinguish between similar objects and not necessarily describe a particular sequence or order.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210016555.XA CN114160707B (en) | 2022-01-07 | 2022-01-07 | Flat wire forming stamping die and stamping equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210016555.XA CN114160707B (en) | 2022-01-07 | 2022-01-07 | Flat wire forming stamping die and stamping equipment |
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| CN114160707A CN114160707A (en) | 2022-03-11 |
| CN114160707B true CN114160707B (en) | 2025-03-25 |
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| CN216881457U (en) * | 2022-01-07 | 2022-07-05 | 厦门势拓御能科技有限公司 | Flat wire forming stamping die and stamping equipment |
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| JP2001077267A (en) * | 1999-09-08 | 2001-03-23 | Mitsubishi Electric Corp | Semiconductor manufacturing device and manufacture of semiconductor device |
| US6418772B1 (en) * | 2000-09-11 | 2002-07-16 | Consolidated Metal Products, Inc. | Centering device and method for U-bolt bending machine |
| CN203944713U (en) * | 2014-07-14 | 2014-11-19 | 中国电子科技集团公司第三十六研究所 | A kind of shaping dies of electrical wiring element |
| DE112015003972T5 (en) * | 2014-08-28 | 2017-06-01 | David Broadhead | Die and punch for a pressing tool |
| CN105665581B (en) * | 2016-04-22 | 2017-08-29 | 成都华川电装有限责任公司 | Rectangle enamel-covered wire rolls over U wire agencies |
| CN212285651U (en) * | 2020-03-23 | 2021-01-05 | 安平县金爵五金网业有限公司 | Multi-station U-shaped wire bending machine |
| CN213256626U (en) * | 2020-07-02 | 2021-05-25 | 漳州锐腾电器有限公司 | A shaping structure that is used for high-speed stamping die to bend and prevents to draw wounded |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204182829U (en) * | 2014-08-14 | 2015-03-04 | 浙江正泰电器股份有限公司 | Breaker conducting system rigid line shaped device |
| CN216881457U (en) * | 2022-01-07 | 2022-07-05 | 厦门势拓御能科技有限公司 | Flat wire forming stamping die and stamping equipment |
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