CN216138026U

CN216138026U - Spring cutting device of spring machine and spring machine

Info

Publication number: CN216138026U
Application number: CN202120953168.XU
Authority: CN
Inventors: 潘柏霖; 张斌; 秦龙; 张剑
Original assignee: Guangdong Xinbao Precision Manufacturing Co ltd
Current assignee: Guangdong Xinbao Precision Manufacturing Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-03-29
Anticipated expiration: 2031-05-06

Abstract

The utility model provides a tongue cutting device of a spring machine and the spring machine, which comprise a stamping knife fixing plate, a stamping knife, a wire pressing plate, a die holder, a die core, a spring and a die holder fixing plate, wherein the wire pressing plate comprises a first wire pressing plate and a second wire pressing plate, a wire groove for sending out a wire is arranged between the first wire pressing plate and the second wire pressing plate, a stamping knife opening for the stamping knife to pass through is formed in the side surface of the first wire pressing plate, a die holder opening for the die holder to pass through is formed in the side surface of the second wire pressing plate, and the stamping knife opening and the die holder opening are communicated and are positioned in the wire groove. According to the tongue cutting device of the spring machine and the spring machine, the cutting tongue is punched out through the punching knife, and the cutting tongue is ejected out of the die holder through the die core, so that the cutting tongue can smoothly pass through the wire pressing plate, wires around the cutting tongue are not deformed, the automation of a tongue cutting process of the spring machine is realized, and the production efficiency and the product quality of the tongue cutting spring strip are greatly improved.

Description

Spring cutting device of spring machine and spring machine

Technical Field

The utility model relates to the field of spring manufacturing, in particular to a tongue cutting device of a spring machine and the spring machine.

Background

The spring bar (also called coil spring or shrapnel and the like) is a flat wire product manufactured by a spring machine, and the forming of a machine table and the processing of a cutting tongue are generally difficult, because the cutting tongue can be clamped at a wire slot when the spring machine is used for production, and if the wire slot is deepened, a wire can be bent in the wire slot, so that continuous production cannot be realized. However, the tongue is often used on the spring strip, for example, in the production of the spring coil, the spring coil is formed by the cooperation of the wire pressing wheel, the wire pressing plate and each mechanical arm, then the spring coil is reversely wound into a ring to increase the elasticity of the spring strip, and the spring strip is fixed by sleeving the ring around the spring strip, but the fixation is troublesome and requires large labor cost. Another fixing method is to design a tongue cutting and punching on the coil spring and to sleeve the hole on the tongue to realize fixing. On the elastic sheet, the cutting tongue can be used as a hanging table to position the product.

At present, an automatic and efficient tongue cutting mode is not available for processing flat wire products, and the existing tongue cutting process usually adopts secondary processing under wires and uses a small punch to cut tongues manually. The manual tongue cutting method has the disadvantages of being separated from the forming process, poor in dimensional stability, low in production efficiency, high in labor cost and high in product type limitation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tongue cutting device of a spring machine and the spring machine, and aims to solve the technical problems of poor stability, low production efficiency and high labor cost of manual tongue cutting in the prior art.

The utility model provides a tongue cutting device of a spring machine, which comprises a punching knife fixing plate, a punching knife, a line pressing plate, a die holder, a die core, a spring and a die holder fixing plate, the wire pressing plate comprises a first wire pressing plate and a second wire pressing plate, a wire groove for sending out a wire is arranged between the first wire pressing plate and the second wire pressing plate, the stamping knife is fixedly connected with the stamping knife fixing plate, a stamping knife opening for the stamping knife to pass through is arranged on the side surface of the first wire pressing plate, the side surface of the second wire pressing plate is provided with a die holder opening for the die holder to pass through, the punching edge and the die holder opening are communicated with each other and are positioned in the wire slot, the mold core is fixedly connected with one end of the spring, the other end of the spring is fixed on the mold base fixing plate, the spring and the die core are positioned in the die holder, and the die holder is fixedly connected with the die holder fixing plate.

Further, the punching edge is located at the tail end of the first wire pressing plate, and the die seat opening is located at the tail end of the second wire pressing plate.

Furthermore, a tongue cutting outlet is arranged at the outlet of the wire groove on the wire pressing plate.

Further, the tongue cutting outlet is located on the second wire pressing plate.

Further, the cross section of the mold core is the same as that of the stamping knife.

Further, the center point of the section of the die cutting edge is aligned with the center point of the section of the die seat opening and both are positioned on the axis of the wire groove.

Further, the stamping knife and the stamping knife fixing plate are fixedly connected through screws.

Further, the die holder is fixedly connected with the die holder fixing plate through screws.

The utility model also provides a spring machine, which comprises a plurality of controllable mechanical arms, a control device for coordinately controlling the mechanical arms based on a control program, a wire feeding device for conveying a wire rod, a forming device for forming a spring and a tongue cutting device of the spring machine, wherein the stamping knife fixing plate and the die holder fixing plate of the tongue cutting device of the tongue cutting spring machine are respectively fixed on different mechanical arms.

According to the tongue cutting device of the spring machine and the spring machine, the cutting tongue is punched out through the punching knife, and the cutting tongue is ejected out of the die holder through the die core, so that the cutting tongue can smoothly pass through the wire pressing plate without deformation, the automation of the tongue cutting process of the spring machine is realized, and the production efficiency and the product quality of the tongue cutting spring strip are greatly improved.

Drawings

FIG. 1 is a top plan view in horizontal section of the tongue cutting device of the spring machine of the present invention;

FIG. 2 is an elevation view in vertical section of the tongue cutting device of the coiling machine of the present invention;

fig. 3 is a perspective view of the tongue cutting device of the spring machine of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly, and the connection may be a direct connection or an indirect connection.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, the utility model provides a tongue cutting device of a spring machine, which comprises a die cutter fixing plate 1, a die cutter 2, a wire pressing plate 3, a die holder 4, a die core 5, a spring 6 and a die holder fixing plate 7, wherein the wire pressing plate comprises a first wire pressing plate 31 and a second wire pressing plate 32, a wire slot 8 for sending out a wire is arranged between the first wire pressing plate 31 and the second wire pressing plate 32, the die cutter 2 is fixedly connected with the die cutter fixing plate 1, a die cutter opening 9 for the die cutter 2 to pass through is arranged on the side surface of the first wire pressing plate 31, a die holder opening 10 for the die holder 4 to pass through is arranged on the side surface of the second wire pressing plate 32, the die cutter opening 9 and the die holder opening 10 are mutually communicated and are positioned in the wire slot 8, the die core 5 is fixedly connected with one end of the spring 6, the other end of the spring 6 is fixed on the die holder fixing plate 7, the spring 6 and the die core 5 are positioned in the die holder 4, and the die holder 4 is fixedly connected with the die holder fixing plate 7. Preferably, the end of the mould core to which the spring 6 is connected is provided with a hanging table (as shown in fig. 2) which functions to confine the mould core 5 in the mould base 4 so that the spring 6 is pre-stressed to provide a greater spring force.

When the spring machine works, the wire pressing wheel rotates to send out the wire, and the die holder 4 moves to the position, close to the wire, of the wire groove 8 through the die holder opening 10 under the action of a mechanical arm of the spring machine. At the moment, the punching knife 2 enters the punching edge 3 under the action of the mechanical arm to start punching, the wire is punched out of the cutting tongue, and the die core 5 of the die holder 4 is pressed back. After the cut tongue is formed, the die holder 4 retreats, and meanwhile, the die core 5 exerts thrust on the cut tongue under the action of the spring 6, so that the cut tongue is prevented from being clamped on the die holder 4, and the deformation of the wire rod is avoided. When the die holder reaches a certain position, the cutting tongue completely exits the die holder 4, the punching knife 2 also retreats, and when the knife tip of the punching knife 2 exits the wire groove, the wire pressing wheel continuously rotates to send the cutting tongue out of the wire pressing plate, so that the tongue cutting procedure is completed.

In one embodiment, in order to prevent the wire from being deformed by the jamming of the cutting tongue, the punching edge 9 is located at the end of the first wire pressing plate 31, and the die seat opening 10 is located at the end of the second wire pressing plate 32, i.e. the cutting tongue means is located at the end of the whole wire pressing plate 3.

In one embodiment, a tongue cutting outlet 11 is arranged at the outlet of the wire groove 8 on the wire pressing plate 3. In order to enable the cutting tongue to smoothly pass through the wire pressing plate 3 and avoid the deformation of the wire, a tongue avoiding vacancy, namely a tongue cutting outlet 11, can be designed at the outlet of the wire groove 8. Preferably, the flap outlet 11 is located at the outlet of the wire slot 8 on the second wire presser 32, depending on the flap orientation.

In one embodiment, the cross-sectional surface of the mold core is the same as the cross-sectional surface of the die cutter, so that the mold core 5 can smoothly withdraw the cutting tongue from the mold base 4, and if the cross-sectional area of the mold core 5 is larger than the cross-sectional area of the die cutter 2, the burr of the cutting tongue can be too large.

In one embodiment, the center point of the cross section of the die edge 9 and the center point of the die seat opening 10 are aligned and both located on the axis of the wire groove 8. The design can ensure that the position of the cutting tongue is positioned on the axis of the spring strip, and the accuracy of the cutting tongue is improved.

In one embodiment, the die cutter 2 and the die cutter fixing plate 1 are fixedly connected through screws. The replacement of the die cutter 2 can be facilitated through the screw fixation.

In one embodiment, the die holder 4 is fixedly connected with the die holder fixing plate 7 through screws. The screw fixing mode can also facilitate the replacement of the die holder 4.

The utility model also provides a spring machine, which comprises a plurality of controllable mechanical arms, a control device for coordinately controlling the mechanical arms based on a control program, a wire feeding device for conveying a wire rod, a forming device for forming a spring and a tongue cutting device of the spring machine, wherein the die cutter fixing plate 1 and the die holder fixing plate 7 of the tongue cutting device are respectively fixed on different mechanical arms. The spring machine is a common automatic device for producing springs at present, and various universal spring machines supporting the production of various types of springs exist in the market, so the specific structure of the spring machine is not described in detail. The spring machine comprising the tongue cutting device can automatically complete the tongue cutting process when spring strips and other springs needing tongue cutting are produced.

According to the tongue cutting device of the spring machine and the spring machine, the tongue cutting punching knife and the die holder are designed at the tail end of the wire pressing plate, and the tongue avoiding vacant position is designed at the tail end of the wire pressing plate, so that automatic continuous feeding is realized. When the spring strip cutting die works, the die cutter punches the wire to form the cutting tongue, and the die core can push the cutting tongue out of the die holder, so that the cutting tongue can smoothly pass through the wire pressing plate to enable the wire not to bend and deform, the traditional manual tongue cutting is replaced, the automation of the tongue cutting process is realized, and the production efficiency and the product quality of the tongue cutting spring strip are greatly improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A tongue cutting device of a spring machine is characterized by comprising a stamping knife fixing plate, a stamping knife, a line pressing plate, a die holder, a die core, a spring and a die holder fixing plate, the wire pressing plate comprises a first wire pressing plate and a second wire pressing plate, a wire groove for sending out a wire is arranged between the first wire pressing plate and the second wire pressing plate, the stamping knife is fixedly connected with the stamping knife fixing plate, a stamping knife opening for the stamping knife to pass through is arranged on the side surface of the first wire pressing plate, the side surface of the second wire pressing plate is provided with a die holder opening for the die holder to pass through, the punching edge and the die holder opening are communicated with each other and are positioned in the wire slot, the mold core is fixedly connected with one end of the spring, the other end of the spring is fixed on the mold base fixing plate, the spring and the die core are positioned in the die holder, and the die holder is fixedly connected with the die holder fixing plate.

2. The tongue cutting apparatus for a coiling machine as set forth in claim 1, wherein said punch edge is located at the end of said first wire pressing plate and said die seat opening is located at the end of said second wire pressing plate.

3. The tongue cutting device of a coiling machine as claimed in claim 2, characterized in that the outlet of the wire casing on the tension disc is provided with a tongue cutting outlet.

4. The spring machine tongue cutting device of claim 3, wherein the tongue cutting outlet is located on the second tension disc.

5. The tongue cutting device of a spring machine according to claims 1-4, wherein the cross section of the core is the same as the cross section of the die cutter.

6. The tongue cutting apparatus of a coiling machine as set forth in claim 5, characterized in that the center point of the cross section of the die edge and the center point of the cross section of the die seat opening are aligned and are both located on the axis of the wire groove.

7. The tongue cutting device of a coiling machine as claimed in claim 1, characterized in that the die cutter and the die cutter fixing plate are fixedly connected by screws.

8. The tongue cutting device for a spring forming machine according to claim 1, wherein the die holder is fixedly connected to the die holder fixing plate by a screw.

9. A spring machine comprising a plurality of controllable robot arms, control means for controlling said robot arms in coordination based on a control program, wire feeding means for feeding a wire, and forming means for forming a spring, characterized by further comprising the tongue cutting device of the spring machine according to any one of claims 1 to 8, wherein said die fixing plate and said die holder fixing plate of the tongue cutting device of the tongue cutting spring machine are fixed to different robot arms, respectively.