CN216881458U - Flat wire forming stamping die and stamping equipment - Google Patents

Abstract

The utility model relates to the technical field of stamping processing, in particular to a flat wire forming stamping die and stamping equipment, which comprise an upper die base, a lower die base matched with the upper die base, a guide block connected with the upper die base, a guide rail base connected with the guide block in a sliding manner, a sliding block connected with the lower die base, and a sliding rail base connected with the sliding block in a sliding manner; the guide rail seat is vertically arranged, the slide rail seat is horizontally arranged, so that the upper die holder moves along the vertical direction, and the lower die holder moves along the horizontal direction; and after the upper die holder and the lower die holder are assembled, the contact position of the upper die holder and the lower die holder is just abutted against the bending position of the flat wire. According to the die provided by the utility model, the upper die base moves vertically downwards, the lower die base moves horizontally, and the upper die base and the lower die base move together to form a motion, so that the die is in line contact friction when used for stamping and closing the flat wire, the problem of damage caused by extrusion and scraping is avoided, and the quality of the flat wire and the performance of a flat wire motor are effectively guaranteed. The structure is simple, the cost is low, and the universality is strong.

Description

Flat wire forming stamping die and stamping equipment

Technical Field

The utility model 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 occupation ratio of the flat-wire motor in practical application is higher and higher. Meanwhile, with the improvement of a voltage platform of the whole vehicle, the requirement on the insulating property of the flat wire enameled wire is higher and higher. In the process of manufacturing the flat wire motor, the line-type forming of the flat wire is a process which causes the largest damage to the line type. The damaged enameled wire can cause the condition of poor insulation, and can cause safety accident in serious cases.

In the prior art, the flat wire is mainly manufactured by a press forming process, wherein the press forming process is a processing and forming method for obtaining a workpiece with a required shape and size by applying external force to a plate, a strip, a pipe, a section and the like by a press machine and a die 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 bend by a die. The die is as shown in fig. 2, and comprises an upper die provided with a punch and a lower die used for placing the flat wire, the lower die is fixed according to a specific working principle, the upper die is rapidly punched downwards along the vertical direction, and the flat wire is pushed to complete deformation, so that 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, the initial contact surface and the final contact surface of the upper die and the flat wire may generate friction slip, which causes the enameled insulation layer of the flat wire to be damaged by the extrusion and scraping of the die, and in addition, the friction deformation at the bending part is large, which also causes serious damage, thereby affecting the quality of the flat wire and the performance of the flat wire motor.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that the flat wire is extruded and scraped by a die and damaged in the stamping process in the prior art, the utility model provides a flat wire forming stamping die which comprises an upper die base, a lower die base matched with the upper die base, a guide block connected with the upper die base, a guide rail base connected with the guide block in a sliding manner, a sliding block connected with the lower die base and a sliding rail base connected with the sliding block in a sliding manner;

the guide rail seat is vertically arranged, the slide rail seat is horizontally arranged, so that the upper die holder moves in the vertical direction under the action of the guide block and the guide rail seat, and the lower die holder moves in the horizontal direction under the action of the slide block and the slide rail seat; and after the upper die holder and the lower die holder are assembled, the contact position of the upper die holder and the lower die holder is just abutted against the bending position of the flat wire.

In one embodiment, the rail seat and the slide rail seat are integrally formed.

In one embodiment, the upper die holder and the lower die holder are matched to form a material passing space for the flat wire to be punched to pass through.

In one embodiment, the material passing space comprises a material passing groove arranged at the stamping part of the upper die base and a material passing convex ridge arranged at the stamping part of the lower die base, wherein the material passing groove is matched with the material passing convex ridge.

In one embodiment, the surface roughness of the material passing groove is less than or equal to Ra1.6 μm.

In an embodiment, the material passing space further comprises a clamping groove which is arranged at the tail of the lower die holder and can just embed the flat wire.

In an embodiment, the automatic pressing device further comprises an automatic pressing assembly which is arranged at the material passing space and arranged on the guide block, and the automatic pressing assembly comprises:

the material pressing column is vertically arranged inside the guide block in a sliding mode, and a through groove arranged in 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 punching is carried out, the material pressing column is slowly contacted with the lower die holder, and moves upwards under the compression action of the spring until the die assembly is completed, and finally the material pressing column is pressed on the flat wire of the lower die holder due to the reaction force of the compression of the spring.

In one embodiment, the device further comprises a manual pressing assembly which is positioned at the material passing space and fixed above the guide rail seat.

In one embodiment, the manual pressing assembly comprises a fixed frame fixed on the guide rail seat and a connecting rod structure arranged in the fixed frame; the upper end of the connecting rod structure is connected with a pressing handle, and the lower end of the connecting rod structure is connected with a pressing block; the pressing handle is pressed downwards to drive the pressing block at the lower end of the connecting rod structure to be pressed on the flat wire of the lower die holder.

The utility model also provides a stamping device, which adopts the flat wire forming stamping die.

Based on the above, compared with the prior art, the flat wire forming and stamping die provided by the utility model has the advantages that the upper die base moves vertically and downwards, the lower die base moves horizontally, and the upper die base and the lower die base move to form a motion composition, so that the die is in line contact friction when the die is used for stamping and die assembling the flat wire, the problem of damage caused by extrusion and scraping is avoided, and the quality of the flat wire and the performance of a flat wire motor are effectively guaranteed. The structure is simple, the cost is low, and the universality is strong.

Additional features and advantages of the utility model 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 utility model. The objectives and other advantages of the utility model 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 used in the embodiments or the description in 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 for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts; in the following description, the drawings are illustrated in a schematic view, and the drawings are not intended to limit the present invention.

FIG. 1 is a schematic structural view of a flat wire punch forming used in a flat wire motor;

FIG. 2 is a schematic diagram of a conventional mold structure;

FIG. 3 is a state diagram of the process of pressing the upper mold of the mold shown in FIG. 2;

FIG. 4 is a schematic structural view of a flat wire forming and stamping die according to the present invention;

FIG. 5 is an exploded view of a stamping die for forming flat wires according to the present invention;

FIG. 6 is a state diagram of the upper die pressing process of the flat wire forming stamping die;

FIG. 7 is an overall perspective view of a flat wire forming stamping die provided in the present invention;

FIG. 8 is an overall front view of a flat wire forming and stamping die according to the present invention;

FIG. 9 is an overall side view of a flat wire forming stamping die according to the present invention;

FIG. 10 is an exploded view of a flat wire forming stamping die according to the present invention;

fig. 11 is a schematic structural view of the automatic pressing assembly and the guide block.

Reference numerals are as follows:

10 upper die holder 20 lower die holder 41 guide block

42 guide rail seat 51 slide block 52 slide rail seat

30 material passing space 31 material passing groove 32 material passing convex ridge

60 automatic pressing assembly 61 pressing column 61a through groove

62 spring 63 fixed pin 70 manual compression assembly

71 fixed frame 72 connecting rod structure 73 pressing handle

74 pressing block

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments; the technical features devised in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other; all other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, and should not be construed as limiting the present invention; it will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The utility model provides a flat wire forming and stamping die, which comprises an upper die holder 10, a lower die holder 20 matched with the upper die holder 10, a guide block 41 connected with the upper die holder 10, a guide rail seat 42 connected with the guide block 41 in a sliding manner, a sliding block 51 connected with the lower die holder 20, and a sliding rail seat 52 connected with the sliding block 51 in a sliding manner, wherein the guide rail seat 42 is connected with the guide block 41 in a sliding manner; the guide rail seat 42 is vertically arranged, the slide rail seat 52 is horizontally arranged, so that the upper die holder 10 moves in the vertical direction under the action of the guide block 41 and the guide rail seat 42, and the lower die holder 20 moves in the horizontal direction under the action of the slide block 51 and the slide rail seat 52; after the upper die holder 10 and the lower die holder 20 are assembled, the contact position of the upper die holder 10 and the lower die holder is just abutted against the bending position of the flat wire.

In specific implementation, as shown in fig. 4, 5, and 6, the stamping die includes an upper die holder 10 and a lower die holder 20, wherein the matched mold shape of the upper die holder 10 and the lower die holder 20 is adapted to the shape of the flat wire to be manufactured. The stamping die 10 further comprises a guide block 41 and a guide rail seat 42, wherein the guide rail seat 42 is vertically arranged, and the guide block 41 and the upper die holder 10 are fixed in a detachable or non-detachable connection mode, for example, one or more of a threaded connection mode, a snap connection mode, a pin connection mode, a welding mode and a riveting mode are adopted. The guide block 41 is matched with the guide rail seat 42, and the guide block 41 can move towards the lower die holder 20 along the guide rail seat 42 under the limit of the guide rail seat 42. It should be understood that the guide block 41 may be directly connected to one of the power sources such as the air cylinder, the electric cylinder, the motor, etc. through a T-shaped groove formed on the top portion, or may be indirectly connected to one of the power sources such as the air cylinder, the electric cylinder, the motor, etc. through a transmission mechanism such as a lead screw nut mechanism, a synchronous belt mechanism, a gear mechanism, a link mechanism, etc.

Similarly, the device also comprises a sliding block 51 and a sliding rail seat 52, wherein the sliding rail 52 is horizontally arranged, and the sliding block 51 is fixed with the lower die seat 20 in a detachable or non-detachable connection manner, for example, in one or more manners of threaded connection, snap connection, pin connection, welding and riveting. The slide block 51 is matched with the slide rail seat 52, and the slide block 51 can move along the slide rail seat 52 to the horizontal direction of the upper die holder 10 under the limit of the slide rail seat 52. It should be understood that the sliding block 51 can be directly connected to one of the power sources such as the air cylinder, the electric cylinder, the motor, etc. through the T-shaped groove provided at the end portion, and can also be indirectly connected to one of the power sources such as the air cylinder, the electric cylinder, the motor, etc. through a transmission mechanism such as a lead screw nut mechanism, a synchronous belt mechanism, a gear mechanism, a link mechanism, etc.

Preferably, the rail seat 42 is integrally formed with the rail seat 52.

In specific implementation, as shown in fig. 10, the rail seat 42 and the slide rail seat 52 are integrally formed according to the matching of the rail seat 42 and the slide rail seat 52 with each structure, wherein the rail seat 42 is disposed above and the slide rail seat 52 is disposed below. The rail base 42 has a downwardly extending groove for restricting the guide block 41 from sliding in the vertical direction, and the rail base 52 has a horizontally extending groove for restricting the slide block 51 from sliding in the horizontal direction. Through the arrangement, the cost can be effectively saved, and the assembly time is shortened.

Preferably, the upper die holder 10 and the lower die holder 20 are matched to form a material passing space 30 for the flat wire to be punched to pass through.

In specific implementation, as shown in fig. 5, the upper die holder 10 and the lower die holder 20 form a material passing space 30 for a flat wire to be punched to pass through in a 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, accurate die closing and bending are ensured, and the flat wire can be prevented from being flattened in height.

Preferably, the material passing space 30 comprises a material passing groove 31 disposed at the punching part of the upper die holder 10 and a material passing ridge 32 disposed at the punching part of the lower die holder 20, wherein the material passing groove 31 is matched with the material passing ridge 32.

In specific implementation, as shown in fig. 7, 8 and 9, the depth and the width of the material passing groove 31 and the material passing ridge 32 depend on the height and the width of the flat wire. Specifically, the material passing groove 31 and the material passing ridge 32 are arranged at the punching part, the specific shape of the material passing groove 31 and the material passing ridge 32 is matched with the shape obtained by punching, and the height of the material passing ridge 32 and the flat wire is equal to the depth of the material passing groove 31. 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 stamping. As a preferable scheme, the flat wire can be manually fed into the material passing space 30, and the flat wire can also be fed into the material passing space 30 by an electric push rod mechanism or other feeding mechanisms.

Preferably, the surface roughness of the material passing groove 31 is less than or equal to Ra1.6 μm, so that the flat wire is ensured to be smoothly contacted in the material passing groove 31 and the material passing convex ridge 32, and the flat wire is effectively prevented from being rubbed with each other to generate indentation and scratch in the stamping and die assembly process.

Preferably, the material passing space 30 further includes a clamping groove 33 disposed at the tail of the lower die holder 20 and capable of just embedding the flat wire.

In specific implementation, the depth and width of the clamping groove 33 should be able to completely accommodate the flat wire to be punched. As a preferred scheme, the flat wire can be manually conveyed into the material passing space 30 and limited on the clamping groove 33, and the flat wire can be conveyed into the clamping groove 33 through an electric push rod mechanism or other feeding mechanisms.

Preferably, the automatic pressing device 60 is arranged at the material passing space 30 and arranged on the guide block 41, and the automatic pressing device 60 comprises: the material pressing column 61 is vertically arranged inside the guide block 41 in a sliding manner, and a through groove 61a arranged along the vertical direction is formed in the middle of the material pressing column 61; a spring 62, which is arranged inside the guide block 41, one end of which is connected with the pressing column 61, and the other end of which is connected with the guide block 41; a fixing pin 63 horizontally passing through the through groove 61a and fixed on the guide block 41; when the die closing and punching are carried out, the material pressing column 61 is slowly contacted with the lower die holder 20 and moves upwards under the compression action of the spring 62 until the die is completely closed, and finally the material pressing column is pressed on the flat line of the lower die holder 20 due to the reaction force of the compression of the spring 62.

In specific implementation, as shown in fig. 11, the automatic pressing assembly 60 works on the principle that, in a state where no punching is performed, the spring 62 is relaxed, and the pressing column 61 is suspended on the guide block 41 under the restriction of the spring 62 and the fixing pin 63; during the clamping press, the plunger 61 is gradually brought into contact with the lower die holder 20 and then moved upward by the compression of the spring 62 until the clamping is completed. Because it is in the position of the overfeed space 30, the ram 61 will 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 stamped can be effectively pressed, the flat wire is prevented from bouncing, and the stamping stability is ensured.

It should be noted that, in order to consider the distribution rationality of the structure, the present solution arranges the automatic pressing assembly 60 on the guide block 41, and a person skilled in the art can arrange the automatic pressing assembly 60 at a position which follows the punching movement of the upper die holder 10 and can press the flat wire during the die closing punching according to the actual structural requirements.

Preferably, a manual pressing assembly 70 is further included at the material passing space 30 and fixed above the rail seat 42. The manual pressing assembly 70 may adopt a screw-nut mechanism or a link mechanism to practice the pressing by moving up and down.

Preferably, as shown in fig. 10, the manual pressing assembly 70 includes a fixed frame 71 fixed on the rail seat 42 and a link structure 72 disposed inside the fixed frame 71; the upper end of the connecting rod structure 72 is connected with a pressing handle 73, and the lower end of the connecting rod structure is connected with a pressing block 74; the pressing handle 73 is pressed downwards to drive the pressing block 74 at the lower end of the connecting rod structure 72 to be pressed on the 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 punching stability.

The utility model also provides a stamping device, which adopts the flat wire forming stamping die.

As a preferable aspect, the punching apparatus may be configured to have: the cutting mechanism for cutting the flat wire adopts the flat wire forming and stamping die, a conveying and inserting mechanism for conveying the cut flat wire into the stamping die, a conveying and taking-out mechanism for taking out the punched flat wire after stamping, and the like.

Further, in the production line, the flat wire is manufactured, punched and then assembled into the motor through the stamping, and the flat wire forming and punching die can be applied to part or all of the motor production lines.

In summary, compared with the prior art, the flat wire forming and stamping die provided by the utility model has the advantages of simple structure, low cost, applicability to materials with different stamping shapes and strong universality. And the surface of the punched flat wire can be effectively ensured not to be damaged, so that the quality of the flat wire and the performance of a flat wire motor are effectively ensured.

In addition, it will be appreciated by those skilled in the art that, although there may be many problems with the prior art, each embodiment or aspect of the present invention may be improved only in one or several respects, without necessarily simultaneously solving all the technical problems listed in the prior art or in the background. It will be understood by those skilled in the art that nothing in a claim should be taken as a limitation on that claim.

Although terms such as upper die holder, lower die holder, material passing space, material passing groove, clamping groove, guide block, sliding block, material passing convex ridge, guide rail holder, slide rail holder, automatic pressing assembly, material pressing column, through groove, spring, fixing pin, manual pressing assembly, fixing frame, connecting rod structure, pressing handle, pressing block, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention; the terms "first," "second," and the like in the description and in the claims, and in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a flat wire shaping stamping die which characterized in that: the die comprises an upper die holder (10), a lower die holder (20) matched with the upper die holder (10), a guide block (41) connected with the upper die holder (10), a guide rail seat (42) connected with the guide block (41) in a sliding manner, a sliding block (51) connected with the lower die holder (20), and a sliding rail seat (52) connected with the sliding block (51) in a sliding manner;

the guide rail seat (42) is vertically arranged, the slide rail seat (52) is horizontally arranged, so that the upper die holder (10) moves along the vertical direction under the action of the guide block (41) and the guide rail seat (42), and the lower die holder (20) moves along the horizontal direction under the action of the sliding block (51) and the slide rail seat (52); after the upper die holder (10) and the lower die holder (20) are assembled, the contact position of the upper die holder and the lower die holder just abuts against the bending position of the flat wire.

2. The flat wire forming and stamping die according to claim 1, wherein: the guide rail seat (42) and the slide rail seat (52) are integrally formed.

3. The flat wire forming and stamping die according to claim 1, wherein: and the upper die holder (10) and the lower die holder (20) are matched to form a material passing space (30) for the flat wire to be punched to pass through.

4. The flat wire forming and stamping die according to claim 3, wherein: the material passing space (30) comprises a material passing groove (31) arranged at the stamping part of the upper die holder (10) and a material passing convex ridge (32) arranged at the stamping part of the lower die holder (20), wherein the material passing groove (31) is matched with the material passing convex ridge (32).

5. The flat wire forming and stamping die according to claim 4, wherein: the surface roughness of the material passing groove (31) is less than or equal to Ra1.6 mu m.

6. The flat wire forming and stamping die according to claim 4, wherein: the material passing space (30) further comprises a clamping groove (33) which is arranged at the tail of the lower die holder (20) and can just embed the flat wire.

7. The flat wire forming and stamping die according to claim 3, further comprising an automatic pressing assembly (60) located at the material passing space (30) and disposed on the guide block (41), the automatic pressing assembly (60) comprising:

the material pressing column (61) is vertically arranged inside the guide block (41) in a sliding mode, and a through groove (61a) arranged in the vertical direction is formed in the middle of the material pressing column (61);

the spring (62) is arranged in the guide block (41), one end of the spring is connected with the material pressing column (61), and the other end of the spring is connected with the guide block (41);

a fixing pin (63) horizontally penetrates through the through groove (61a) and is fixed on the guide block (41);

when the die assembly punching is carried out, the material pressing column (61) is slowly contacted with the lower die holder (20) and moves upwards under the compression action of the spring (62) to be fully assembled, and finally the material pressing column is pressed on the flat wire of the lower die holder (20) due to the reaction force of the compression of the spring (62).

8. The flat wire forming and stamping die according to claim 3, wherein: the device also comprises a manual pressing assembly (70) which is positioned at the material passing space (30) and fixed above the guide rail seat (42).

9. The flat wire forming and stamping die of claim 8, wherein: the manual pressing assembly (70) comprises a fixed frame (71) fixed on the guide rail seat (42) and a connecting rod structure (72) arranged in the fixed frame (71); the upper end of the connecting rod structure (72) is connected with a pressing handle (73), and the lower end of the connecting rod structure is connected with a pressing block (74); the pressing handle (73) is pressed downwards to drive the pressing block (74) at the lower end of the connecting rod structure (72) to be pressed against the flat wire of the lower die holder (20).

10. A stamping apparatus, characterized in that: a flat wire forming and stamping die as claimed in any one of claims 1 to 9.

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