TWM459041U - Pressing mold with guided impact unit - Google Patents

Description

Stamping die with guiding impact unit

The present invention relates to a stamping die, and more particularly to a stamping die having a guiding impact unit.

Stamping is a metalworking method that slams a workpiece, cuts, bends, or shapes it into the finished shape or size specified by the mold. The machine tool used for stamping is called a punch press, and the mold used is called a stamping die. Nowadays, products with repeatability, high precision and uniform specifications can be punched out. The products that are stamped and formed include the body, chassis, fuel tank, radiator plate of the automobile, the drum of the boiler, the metal casing, the steel piece of the motor and the electric appliance, etc., and the smaller ones can also manufacture surface-mounted circuit components.

As shown in Fig. 10, the conventional stamping is generally composed of upper molds 91 and lower molds 92 which correspond to each other. The upper mold 91 is provided with a molding punch 911 and a pressing punch 912; the lower mold 92 is disposed corresponding to the upper mold 91, and includes a molding slider 921 that can slide a certain distance to the left and right. When the mold is closed, the upper mold 91 moves downward, and the pressing punch 912 pushes the chamfered surface 9210 of the forming slider 921, so that the forming slider 921 slides to the right side to the side where the product needs to be punched, and is stamped by the forming punch 911. The product 90 needs to be stamped on the upper surface to complete the stamping forming operation simultaneously; when the mold is opened, the upper mold 91 moves upward, and the forming punch 911 and the pressing punch 912 are moved upward, and the forming slider 921 is returned to the original position, and finally Form the desired product.

However, such conventional stamping methods have their limitations and are limited by the inclined chamfered surface structure. The double punching motions must operate perpendicularly to each other, one set is punched in the up and down direction, and the other set must be stamped in the left and right direction, without change. There is room for it; on the other hand, double stamping must be operated synchronously, once in place, and cannot be waited for, for example, after a set of presses are completed, and then left and right stamping. That is to say, there is a sequential double stamping, which must be completed by two sets of machines or by changing the mold on the same machine. In this way, the process will be complicated and the output efficiency will be reduced. In particular, there will be a positioning problem between the two operations. Once the feeding and positioning accuracy are slightly deviated, the previous punching position and the second punching position will be offset. Significantly reduce product yields, resulting in a sharp increase in manufacturing costs.

Further, since the products produced in the conventional molds are all uniform specifications, especially for such double-punched products, even if the structure of the product is slightly changed, for example, the position of the perforation is shifted by three centimeters to the right, another set of stamping dies is needed, not to mention Double-stamped molds are more expensive to manufacture and must be redesigned and purchased with another set of stamping dies, which undoubtedly increases costs significantly.

Of course, there are already multi-axis punching machines, but because of the set of multiple punching arms, the cost and price of the machine are far higher than the traditional single-axis punching machines, and the traditional processing industry can't afford it. Therefore, in order to simplify the process, improve the output efficiency and product yield, the structural design of the stamping die becomes an important issue. At present, the industry is striving to develop various types of composite mold structures, and strives to design a suitable stamping die. It hopes to obtain high-performance and high-quality product output under the premise of minimum cost to solve the problem of traditional stamping die.

In view of this, the present invention particularly proposes a stamping die having a multi-directional or segmented stamping function. Not only can the function of multiple or segmental stamping be achieved in the same mold; it can also be fine-tuned according to the specifications or structure of subsequent products, and with the technical features of this creation, multiple stamping can be performed in multiple directions without having to replace the entire group. Stamping die. In summary, the present invention provides an improved stamping die, in which a group of guiding impact units are placed in the mold to withstand the primary movement in the up and down direction, thereby providing secondary movements that change direction or timing, thus enabling Multi-stage or multi-directional stamping on the simplest single-axis press table not only simplifies the process, but also improves product yield and output efficiency for maximum economic efficiency.

One object of the present invention is to provide a stamping die having a guiding impact unit, which can perform multiple punching with multiple angles or timings in a single operation, thereby simplifying the process.

Another object of the present invention is to provide a stamping die having a guiding impact unit, which can complete the effect of multiple stamping in a single time and improve the output efficiency.

Another object of the present invention is to provide a stamping die having a guiding impact unit, which can complete the effect of multiple stamping in a single operation, reduce unnecessary positioning problems, and improve product yield.

A further object of the present invention is to provide a stamping die having a guiding impact unit, which can design the guiding impact unit in the mold as an adjustable pattern, so that the single die can manufacture a plurality of specifications, reduce the cost of the mold and improve the manufacturing flexibility.

The present invention discloses a stamping die having a guiding impact unit which is disposed on a press machine further including a base for punching a workpiece to be processed. The stamping die includes a lower die assembly having a lower die body; an upper die assembly having an upper die body corresponding to the lower die body; and at least one of the upper die body and the lower die body, Providing relative movement between a relatively remote starting position and a relatively close stamping position; and at least one guiding impact unit comprising: a pivoting member of the upper mold assembly, the lower mold assembly Or one of the bases, a guide block for pivoting between a rest position and an impact position; the guide block having a first end and a traction portion, the first end to the pivot a line is an angle with the connecting portion of the traction portion to the pivot shaft; a punch actuated by the traction portion; and the at least one guiding impact unit includes a body when the upper mold body and the lower mold body are When the starting position is relatively close to the pressing position, the pressure driving portion of the first end of the guiding block is pivoted by being pushed by one of the upper mold body, the lower mold body or the base, and the traction portion is The first end pivots at an equal angular velocity The punch actuated.

Based on the above, the stamping die with the guiding impact unit of the present invention can perform multi-directional or multi-stage sequential punching by the single-axis punching machine, which not only saves the process, reduces the mold cost, but also reduces the alignment. Inaccurate risk, greatly improve product yield and output efficiency; can also produce guide position impact unit with adjustable position, so that it is feasible to manufacture a variety of similar products with a single die, without the need to replace the entire set of stamping dies, greatly By expanding the scope of use of stamping products, the cost can be effectively controlled, and the output can be further improved to achieve all of the above objectives.

The foregoing and other technical features, features, and advantages of the present invention will be apparent from the following description of the preferred embodiments.

1 is a schematic cross-sectional view showing a first preferred embodiment of the stamping die of the present invention. The stamping die 10 is disposed on the press table 1 in the same manner as the prior art, and the press table 1 further includes a base 20. The stamping die 10 mainly includes an upper die assembly 11, a lower die assembly 12, and a guide impact unit 13. In the embodiment, the upper mold assembly 11 further includes an upper mold body 111 and a plurality of returning members 113, and a plurality of guiding holes 112 are formed in the upper mold body 111; the lower mold assembly 12 includes a lower die body 121 and a plurality of guide posts 122 respectively corresponding to the guiding holes 112; the guiding impact unit 13 includes a guiding block 131, a punch 132, a pressure driving portion 133 and a pivot 134. Of course, the positions of the guide post and the guide hole can be exchanged with each other, which still does not hinder the implementation of the present case.

For convenience of explanation, it is defined herein that the upper mold assembly 11 and the lower mold assembly 12 are in a starting position away from each other before punching, and the positions close to each other at the time of punching are punching positions; in this example, the impact is guided. The unit 13 is pivotally mounted in the lower mold assembly 12 by a pivot 134, and when pressed, is pressed by the upper mold body 111 of the upper mold assembly 11 for punching. Therefore, the pressure-driven driving portion 133 in the guide impact unit 13 is interposed between the starting position and the punching position of the upper mold body 111.

When the stamping die 10 is closed, please refer to FIG. 2 together, the upper die body 111 is driven by the power source of the press machine 1 and displaced toward the lower die assembly 12, and the guiding of the impact unit 13 is guided at this time. The block 131 will take the first end portion 1311 of the guiding block 131 as the pressure receiving driving portion 133, and will withstand the pressing of the upper mold body 111, so that the slightly L-shaped guiding block 131 as a whole along the pivot 134 The figure pivots counterclockwise, and the traction portion 1312 at the upper end of the guide block 131 rotates at the same angular velocity as the first end portion, and the laterally disposed punch 132 is pulled to the left to perform punching.

In this example, since the upper mold body 111 is provided with a sharp punch (not labeled), the object to be processed will be first impacted by a punch of the upper mold body 111 on the top, and then the right side. The punch 132 reaches the right side wall of the item to be treated, and instead forms another recess on the right side thereof. It can be found that, by the action of the guiding impact unit 13, the upper and the right punching can be divided into successive actions according to the time sequence, and even the right punch 132 can be arranged obliquely, so that an oblique direction can be formed on the right side of the object to be processed. The depressions provide a multi-angle stamping effect in a single impact.

Referring to FIG. 3 together, when the stamping is completed, the pressure above the upper mold assembly 11 is released, and the return member 113, which is illustrated as a spring, is sleeved on the outside of the guide post 122, and the upper mold body 111 is The restoring force of the elastic deformation caused by the pressing is reversely applied to the upper mold body 111, whereby the upper mold body 111 is pushed upward to move away from the lower mold body 121 and return to the starting position. In this example, the pivot 134 of the guiding block 131 is also provided with a torsion spring (not shown) to return the guiding block 131 to the original position, and a spring is disposed between the guiding block 131 and the punch 132 (not The label 132 will also gradually return to the starting position with the guiding block 131 to complete a stamping cycle.

As shown in FIG. 4, the length of the first end portion 1311 (i.e., the pressure-receiving portion 133 in this example) and the pivot 134 is not equal to the length of the traction portion 1312 and the pivot 134. And at an angle to each other, and the concentric arc rotation along the pivot 134, when the height of the pivot 134 is changed, the start rotation time of the pressed driving portion 133 by the contact of the upper mold body 111 can be changed. In order to control the relative timing of the right side punching, in other words, to increase the position of the pivot 134, the original position of the guiding block 131 is relatively lowered, so that the lateral stamping delay can be started, so that the lateral punching occurs in the last period of the entire stamping process. When the position of the pivot 134 is lowered, the original position of the guiding block 131 is relatively increased, so that the lateral punching is started early.

On the other hand, when the pivot 134 is disposed at a position closer to the left side of the guiding block 131, the connection between the first end portion 1311 (ie, the pressure driving portion 133 in this example) and the pivot 134 is shortened, and the traction portion 1312 and the pivot portion are shortened. The line of 134 is stretched such that the difference between the two is greater, that is, the traction portion 1312 will guide the punch 132 through a larger arc at the same time, and the lateral displacement speed of the lateral punch is Zoom in, so you can give a quick blow to the object to be processed at the very end of the process of punching up and down. Conversely, the pivot 134 is moved to the right relative to the guide block 131, which will lengthen the line connecting the first end 1311 and the pivot 134, and the laterally punched punch 132 thus operates relatively slowly. Of course, whether the position of the pivot 134 in the guiding block 131 is changed, or the position at which the pivot 134 is pivoted to the lower mold body is changed, a similar corresponding effect can be produced. Therefore, in this example, it is exemplified that a plurality of accommodating holes 1313 are formed in the guiding block 131 for the pivot 134 to change the setting position, whereby the same die can easily change the speed or timing of the actuation, or The position or angle of the stamping is easily adjusted, so that the flexibility of the mold is greatly improved.

A second embodiment of the present invention is shown in FIG. 5 and FIG. 6, wherein the stamping die is different from the previous embodiment in that the guiding block 131' is pivotally mounted on the upper die assembly 11' by a pivot 134'. The shape of the guiding block 131' is changed, and the first end portion 1311' (ie, the pressure driving portion 133') is connected to the pivot 134' with respect to the traction portion 1312' and the pivot 134'. The connection becomes an obtuse angle instead of the acute angle of the previous embodiment; further, the embodiment is performed by the lower mold body 121' carrying the object to be processed moving toward the upper mold body 111' for punching; in short, the lower mold body When the stamping body 111' is pressed toward the upper mold body 111', the lower mold body 121' pushes the pressure-receiving driving portion 133' of the guiding block 131', drives the first end portion 1311' to rotate the guiding block 131', and pulls the traction portion 131' The portion 1312' activates the punch 132'; therefore, it can also be stamped from the lower die to the upper die to illustrate the diversity of the stamping method in the present creation.

7 to 9 are schematic views showing the punching operation of the third embodiment of the present invention. In the present embodiment, the pivot 134" of the guiding impact unit 13" is pivoted in the base 20", and the impact unit is guided. 13" additionally includes a conductive member 135", the lower end of the conductive member 135" extends to the lower mold body 121", and the upper end extends to the first end portion 1311" corresponding to the guide block 131". When the lower mold body 121" is up When punching, the pressure-receiving driving portion 133" at the lower end of the conductive member 135" is pushed forward to displace the conductive member 135" as a whole, and the conductive member 135" pushes the first end portion 1311 of the guiding block 131" with its upper end. ", the guide block 131" is further rotated, and its traction portion 1312" is pulled to actuate the punch 132" down.

Referring to the object to be processed shown in FIG. 8 and FIG. 9, the upper mold body 111" and the lower mold body 121" are first clamped and clamped, and the punch 132" is placed on the object to be processed which is clamped. The punching of a through hole in the up and down direction, such as the combination of furniture, such as table legs, leg processing, will be much more convenient than the current mold, so that the two actions in the same direction can be completed in the same mold. In this example, the upper and lower mold bodies are not clamped by the form of the guide post, but the hydraulic pump is pushed up from the bottom, for example, and the effect of the present invention can be achieved.

In particular, the guide block can be replaced by the user and can be flexibly assembled and disassembled. There is no need to replace the entire stamping assembly, and a few simple changes can be provided by changing the position of the stamping unit. Of course, as can be easily understood by those skilled in the art, the shape of the guiding block of the present invention may be differently changed; moreover, the receiving hole in the guiding block is not limited to a certain position, and the position thereof may be determined according to the location. Arranging the angles to be rotated, so that a plurality of pivots can be placed in the guiding block for the above-mentioned pivots, so that the guiding blocks can be relatively located in a plurality of dissimilar positions, thereby improving efficiency; The angle of the guiding block is not limited to one type, and may also be changed according to the appearance of the matched product. The first end portion and the length of the traction portion may be designed to be symmetrical. Or an asymmetrical structure, without hindering the implementation of the case. In this way, only a set of molds need to be opened, which can be adjusted according to requirements, reducing the cost of the mold.

In summary, the stamping die with the guiding impact unit of the present invention can perform multi-directional or multi-stage sequential punching by the single-axis punching machine, which not only saves the process, reduces the mold cost, but also reduces the pair. The inaccurate risk of the position greatly improves the product yield and output efficiency; it can also make the guide impact unit with adjustable position, so that it is feasible to manufacture a variety of similar products with a single die, without replacing the entire set of stamping dies. By expanding the range of use of stamping products, the cost can be effectively controlled, and the output can be further improved to achieve all of the above objectives.

The above drawings are only examples of the present invention, which can be derived from a wide range of applications, and because of the simple structure, the doubled production efficiency can also take into account the production cost, and has industrial utilization value. Anyone who has the same simple conversion or equivalent conversion as the creative technology idea belongs to the scope of this new patent.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person having ordinary knowledge in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection of this new type is subject to the definition of the scope of the patent application.

1‧‧‧ Stamping machine

10‧‧‧Pressing die

20, 20" ‧ ‧ pedestal

11, 11' ‧ ‧ upper mold components

12‧‧‧Down module

13, 13" ‧ ‧ guided impact unit

111, 111’, 111” ‧‧‧Upper Form Body

112‧‧‧ Guide hole

113‧‧‧Return parts

121, 121’, 121”‧‧‧

122. . . Guide column

131, 131', 131"... guide block

132, 132’, 132”... punches

133, 133', 133"... pressure drive unit

134, 134', 134"... pivot

135"...transmission

1311, 1311', 1311"... first end

1312, 1312’. . . Traction department

1313. . . Socket hole

91. . . Upper mold

92. . . Lower die

911. . . Forming punch

912. . . Pushing the punch

921. . . Forming slider

9210. . . Oblique cut surface

90. . . product

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a first preferred embodiment of a stamping die of the present invention.

Fig. 2 is a schematic view showing the mold clamping of the first preferred embodiment of the stamping die of the present invention.

Fig. 3 is a schematic view showing the opening of the first preferred embodiment of the stamping die of the present invention.

4 is an enlarged schematic view of the guide impact unit of FIGS. 1 to 3.

Figure 5 is a cross-sectional view showing a second preferred embodiment of the stamping die of the present invention.

Fig. 6 is a schematic view showing the clamping of a second preferred embodiment of the stamping die of the present invention.

Figure 7 is a cross-sectional view showing a third preferred embodiment of the stamping die of the present invention.

Fig. 8 is a schematic view showing the start of clamping of a third preferred embodiment of the stamping die of the present invention.

Fig. 9 is a schematic view showing the completion of the clamping of the third preferred embodiment of the stamping die of the present invention.

Figure 10 is a schematic view of a conventional stamping die.

1. . . Stamping machine

10. . . Stamping die

20. . . Pedestal

11. . . Upper mold assembly

12. . . Lower die assembly

13. . . Guide impact unit

111. . . Upper mold body

112. . . Guide hole

113. . . Return piece

121. . . Lower die body

122. . . Guide column

131. . . Guide block

132. . . Punch

133. . . Pressure driven part

134. . . Pivot

Claims (9)

A stamping die having a guiding impact unit for being disposed on a punching machine and stamping a workpiece to be processed, the punching machine having a base for the stamping die, the stamping die comprising: one having an upper die An upper mold assembly of the body; a lower mold assembly having a lower mold body corresponding to the upper mold body; and at least one of the upper mold body and the lower mold body is provided at a relatively distant start a relative movement between the position and a relatively close stamping position; and at least one guiding impact unit comprising: a pivoting member of the upper mold assembly, the lower mold assembly or the base a guiding block pivoting between a rest position and an impact position; the guiding block having a first end and a traction portion remote from the first end, the first end being opposite the pivot portion Pivoting at the same angle; and a punch actuated by the aforementioned traction portion; and the at least one guiding impact unit includes a body when the upper mold body and the lower mold body are relatively close to the punching position from the aforementioned starting position , By the upper mold body, or one of the lower mold body base driving pressure receiving portion is actuated to push the first end portion of the guide block is pivotally actuate the punch. The stamping die of claim 1, wherein in the at least one guiding impact unit, the pivot pivoting the guiding block is pivotally disposed on the upper die body. The stamping die of claim 1, wherein in the at least one guiding impact unit, the pivot pivoting the guiding block is pivoted to the lower die body. The stamping die of claim 1, wherein in the at least one guiding impact unit, the pivot pivoting the guiding block is pivoted to the base. The stamping die of claim 1, 2, 3 or 4, wherein the guiding impact unit further comprises a conducting member having the above-mentioned pressurized driving portion, the conducting member being away from the pressurized driving portion One end edge contacts the above guiding block. The stamping die of claim 1, 2, 3 or 4, wherein the pressurized driving portion is formed at a first end portion corresponding to the guiding block. The stamping die of claim 1, 2, 3 or 4, wherein at least one of the upper die assembly or the lower die component further comprises at least one guide post, and the upper die assembly or the lower The other of the die assemblies is formed with guide holes corresponding to the number of the aforementioned guide columns and respectively provided for the corresponding guide posts. The stamping die of claim 7, wherein the upper die assembly further comprises at least one sleeve that is sleeved outside the guide post for pushing the upper die body and the lower die body from the relatively close stamping position. A return member to the relatively distant starting position. The stamping die of claim 1, wherein the guide block of the at least one guide impact unit is formed with a plurality of the pivots for accommodating the pivots such that the guide blocks are opposite A receiving hole located at a plurality of different positions.