TWI702095B - Rotating die device - Google Patents

Abstract

A rotary die device includes a die unit and a linkage device; wherein the die unit has at least an upper die and a lower die opposite to the upper die, and the upper die is provided in the direction of the lower die A plurality of punches of different types, and the lower mold is provided with matching mold cavities at positions relative to the punches, and the linkage device is provided between the upper mold and the lower mold to rotate the upper mold The lower mold can be rotated together with the mold. The upper die and the lower die are combined by the linkage device. When holes of different shapes are needed to be punched out, the die unit only needs to be rotated, and it can be replaced with another punch and corresponding die cavity combination of different shapes . The punches can be selected simply and quickly, and the equipment cost and processing time can be effectively reduced.

Description

Rotating die device

The invention relates to a punching device, in particular to a rotary punching die device that can quickly replace punches.

A punching machine is a device for processing a workpiece. When a hole is punched on a workpiece with a punching machine, the workpiece is first placed under the punch of the die, and then the power device is activated to drive the punch to pressurize the workpiece. The punch with relatively high hardness punches a hole in the workpiece with the same shape as the punch. With the development of different application fields of workpieces or the development of combination methods, the required hole shapes are becoming more and more diverse. Therefore, before punching, the mold used with the punching machine will be selected according to the required shape.

However, the existing punching machine can only be equipped with a mold of one shape. If it is necessary to punch holes of different shapes, it is necessary to prepare multiple punching machines equipped with molds of different shapes at the same time, or remove the punching mold and Replacement can meet the needs of punching holes of different shapes. This will increase equipment cost or processing time and needs to be improved.

Therefore, the object of the present invention is to provide a rotary die device that can quickly replace the punch in a rotating manner.

Therefore, the rotary die device of the present invention includes a die unit and a linkage device. The die unit has at least an upper die and a lower die opposite to the upper die, and the upper die is provided with a plurality of punches of different types in the direction of the lower die, and the lower die is opposite to the punches. The head positions are respectively provided with matching mold cavities, and the linkage device is arranged between the upper mold and the lower mold, and the lower mold can be rotated together when the upper mold is activated.

The effect of the present invention is that the upper die and the lower die are combined together by the linkage device, and when holes of different shapes are needed to be punched out, only the die unit needs to be rotated, and it can be replaced with another punch of different shapes at the same time. Head and another cavity. It can simply and quickly select from the punches to punch holes of different shapes, and can effectively reduce the cost of purchasing equipment and the processing time of workpieces.

1 and 2, an embodiment of the rotary die device of the present invention is suitable for punching holes on a blank 5, and includes a base 1 suitable for carrying the blank 5 The die unit of the base 1, a positioning device 3 for positioning the die unit 2 on the base 1, and an end connected to the base 1 and suitable for carrying the material 5 together with the base 1 Base 4.

The base 1 includes a base shaft 11 protruding upward, a chamber 12 recessed downward around the base shaft 11 in a ring shape, a downward recessed limit groove 13 suitable for housing the material 5, and a plurality of Along the extension direction of the limiting groove 13, the limiting members 14 are arranged at intervals and can be reciprocally extended in the limiting groove 13, and are suitable for positioning the limiting member 14 of the blank 5. The limiting groove 13 is formed with two notches 131 facing the die unit 2 and the feeding base 4 respectively.

The die unit 2 includes a lower mold 21 set on the base shaft 11 of the base 1 and accommodated in the chamber 12, and an upper mold 22 set on the base shaft 11 and spaced from the lower mold 21 in the vertical direction. , A linkage device 23 connecting the upper mold 22 and the lower mold 21, a plurality of punches 24 protruding from the upper mold 22 toward the lower mold 21 and arranged around the base shaft 11, and one from the upper mold 22 and The lower mold 21 is sleeved on the elastic member 25 of the base shaft 11. In this embodiment, four punches 24 arranged around the base shaft 11 are taken as an example for description, and the punches 24 can punch holes of different shapes. However, due to the view angle relationship, FIGS. 1 and 2 Only two adjacent punches 24 are shown in.

The lower mold 21 is suitable for carrying the material sheet 5 together with the base 1, and is formed with a plurality of material containing passages 211 recessed downward and suitable for containing the material sheet 5, and a plurality of materials are respectively connected to the material containing channels 211 211 are respectively used for a cavity 212 for the punches 24 to extend, and a through hole 213 for the base shaft 11 to penetrate in the vertical direction. In addition, the lower mold 21 has an assembly member 214 arranged around the through hole 213 in a closed shape and extending toward the upper mold 22. In this embodiment, the lower mold 21 is formed with four material containing passages 211, and four mold cavities 212 positioned on the same line as the punches 24, and the shapes of the mold cavities 212 are respectively Corresponding to the shape of 24 punches. It should be noted that in this embodiment, the shapes and numbers of the punches 24, the material containing passages 211, and the mold cavities 212 are only examples, and are not shown in this embodiment. limit.

The upper mold 22 has a ring-shaped resisting member 221 sleeved on the base shaft 11, and a ring-shaped body 222 sleeved on the resisting member 221. In this embodiment, one end of the elastic member 25 resists the resisting member 221, and the other end resists the lower mold 21 and is accommodated in the assembly member 214 of the lower mold 21.

1 and 3, the upper mold 22 and the lower mold 21 are assembled by the linkage device 23, and have two assembly parts surrounding the base shaft 11 and facing the lower mold 21 from the upper mold 22 214 protruding connecting rods 231, two openings 232 recessed from the assembling member 214 corresponding to the connecting rods 231 and respectively for the connecting rods 231 to slidably penetrate through the upper mold 22 perforation 233, and two sliding rods 234 connected to the assembly 214 and slidably penetrated through the perforations 233 (due to the angle of view, only one linkage rod 231 and one hole 232 are shown in the figure. , A perforation 233, and a sliding rod 234). Each perforation 233 has a small aperture portion 235 facing the lower mold 21 and a large aperture portion 236 opposite to the small aperture portion 235 and larger than the small aperture portion 235. Each sliding rod 234 has a rod portion 237 extending from the assembly 214 toward the upper mold 22 and passing through the through hole 233, and a rod portion 237 connected to the rod portion 237 and received in the large aperture portion 236的头238.

It should be noted that the number of the linkage rods 231, the holes 232, the perforations 233, and the sliding rods 234 is not limited to this, and the linkage device 23 may also have only a linkage rod 231 and An opening 232 can also be used to connect the upper mold 22 and the lower mold 21 together.

1 and 2 again, the positioning device 3 includes a plurality of positioning grooves 31 recessed radially inwardly from the outer peripheral surface of the lower mold 21, and a positioning groove 31 extending from the base 1 toward the lower mold 21 and used to reciprocally The positioning slider 32 penetrates through one of the positioning grooves 31. In this embodiment, the positioning device 3 includes four positioning grooves 31 respectively corresponding to the material containing channels 211.

The feeding base 4 is formed with a feeding slot 41 recessed downward and suitable for containing the material sheet 5, and communicating with one of the slots 131 of the limiting slot 13 of the base 1, and has a The limit slot 13 and the feed slot 41 extend in the same direction as the ruler 42, and a plurality of rules are arranged at intervals along the extension direction of the feed slot 41 and can be reciprocally extended in the feed slot 41, and are suitable for The limiting members 14 of the base 1 cooperate to position the fixing member 43 of the material 5.

1 to 3, for ease of description, the punches 24 in the figure are marked as 24a, 24b, 24c from left to right (due to the angle of view, the punch 24c is not shown in FIG. The punch 24b is not shown in 3), and the material containing channel 211, the mold cavity 212 and the positioning groove 31 corresponding to the punch 24a are marked as 211a, 212a, and 31a, respectively.

This embodiment is suitable for use with a power device 6 that reciprocates in the vertical direction. Before punching, the rotary punching device of the present invention must be placed under the power device 6 as shown in Figure 3 of this embodiment. , The die unit 2 is located directly below the power device 6 and is separated from the power device 6, and then one of the punches 24 is selected according to the shape of the hole to be punched, and the die unit 2 is rotated, and the upper die 22 The lower mold 21 will be driven by the linkage rods 231 and the sliding rods 234 to rotate synchronously, so that the punch 24a always corresponds to the material containing channel 211a, the mold cavity 212a and the positioning groove 31a. The die unit 2 can drive the punches 24 to rotate relative to the base 1 between a punching position that can contact the blank 5 and a ready position that cannot contact the blank 5.

For example, when a rectangular hole as shown in the punch 24a is to be punched, the punch unit 2 must first be rotated clockwise or counterclockwise as shown in FIG. 2 so that the punch 24a is located at the punching position. Waiting for the punches 24b, 24c to be located in the preparation position. At this time, the material containing channel 211a corresponding to the punch 24a will communicate with one of the slots 131 of the limiting groove 13, and the material containing channel 211a is connected to The limiting slot 13 extends in the same direction, and the other slot 131 of the limiting slot 13 communicates with the feeding slot 41 of the feeding base 4 so that the material containing channel 211a and the limiting slot 13 and the feeding groove 41 form a linear connection, and then, the positioning slide 32 is pushed into the positioning groove 31 a in the direction indicated by the arrow at the bottom of FIG. 2, so that the lower mold 21 is positioned by the positioning slide 32.

Finally, the blank 5 is placed in the feeding trough 41, and the blank 5 is pushed from the feeding trough 41 to the die unit 2, so that the blank 5 is simultaneously accommodated in the feeding trough 41, In the limiting groove 13 and the material containing channel 211a, the blank 5 can be measured with the ruler 42 at this time, so that the position where the blank 5 is to be punched can be located between the punch 24a and the mold cavity 212a . Then, if necessary, the position-limiting parts 14 and the fixing parts 43 are pushed to the blank 5 for positioning, and then the punching operation can be performed.

Of course, the placement method of the material 5 is not limited to the manner described above, and the material 5 can also be pushed into the material containing channel 211a from the side of the base 1 opposite to the feeding base 4. In the stamping application of the blank 5, if only one end of the blank 5 needs to be stamped, it is more convenient to enter the material containing passage 211a for stamping in this way.

2 to 4, after the power device 6 is activated, the power device 6 will move downward as shown by the arrow in Figure 3 to drive the upper mold 22, and the upper mold 22 drives the linkages of the linkage device 23 The rods 231 and the punches 24 move toward the lower mold 21 relative to the sliding rods 234 and compress the elastic member 25 elastically. In this embodiment, since the linkage rods 231 and the openings 232 of the linkage device 23 are in a non-tight fit, when the power device 6 drives the upper mold 22, the linkage rods 231 can move toward the The lower mold 21 slides, and the punch 24a located at the punching position can contact the blank 5 as shown in FIG. 4, and extend into the mold cavity 212a after punching. The punches 24b, 24c located in the preparation position will directly extend into the corresponding mold cavities 212 to prevent the punches 24b, 24c from being damaged due to contact with the lower mold 21.

After the punch 24 a punches a hole in the blank 5, the elastic member 25 will be elastically reset and drive the upper die 22 to drive the punch 24 to automatically move away from the lower die 21 and the blank 5. In this process, since the diameter of the heads 238 of the sliding rods 234 is larger than the small apertures 235 of the perforations 233, and they cannot pass through the small apertures 235, the upper mold 22 will be limited by the heads 238. It stops moving due to the action of the position, and finally returns to the position before punching as shown in Figure 3 to complete the punching operation. By cooperating with the linkage device 23 to limit the lower mold 21 and the upper mold 22, the lower mold 21 and the upper mold 22 can be rotated synchronously, and it is convenient to replace with another punch 24 of a different shape, which ensures the The punch 24 can maintain the alignment with the cavities 212 of the lower mold 21 during the punching process, and ensure that the upper mold 22 automatically returns to the position before punching during the resetting process.

Refer to Figure 2 and Figure 5 in conjunction. After finishing the stamping operation, if other types of holes need to be stamped, push the stopper 14 and the fixed parts 43 away from the blank 5, and replace the The blank 5 or move the position of the blank 5, and then withdraw the positioning slider 32 away from the die unit 2 as shown in Fig. 5, and then move clockwise or counterclockwise as shown in the arrow direction in Fig. 5 Rotate the die unit 2 in the same direction to continue punching with another style of punch 24.

1 and 3 again, because the die unit 2 is directly sleeved on the base shaft 11 of the base 1, and the die unit 2 is not connected to the power device 6, so only the positioning device 3 is positioned The sliding member 32 pushes away from the extended positioning groove 31 and lifts the die unit 2 away from the base 1 to separate the base 1 and the die unit 2. When more holes of different shapes need to be punched out, a plurality of die units 2 with a plurality of punches 24 of different shapes can be produced, so that the user can replace the die unit 2 according to the needs of punching. There is no need to purchase machines with different punch shapes, which can effectively reduce the cost of purchasing equipment and storage space. At the same time, since the die unit 2 can be easily removed, the punches 24 of different shapes can be quickly replaced.

In addition, the die unit 2 is not connected to the power device 6, therefore, the rotary die device of the present invention can be easily moved, and can be used in different types of stamping equipment without being affected by the type of machine. Limited.

In addition, in this embodiment, the power device 6 drives the punches 24 at the same time, and cooperates with the limiting effect of the linkage device 23 on the lower die 21 and the upper die 22, so that the power device 6 is relatively The force applied by the unit 2 will be more even, that is, the power device 6 drives the upper die 22 so that the punches 24 provided on the upper die 22 are linearly directed toward the lower die 21 simultaneously and consistently Move, so that the eccentric load generated during punching can be reduced, the processing accuracy can be improved, and the service life of the die unit 2 can be prolonged.

In summary, the rotary punching die device of the present invention uses the linkage device 23 to cooperate and assemble the lower die 21 and the upper die 22, and when it is necessary to punch out holes of different shapes, it only needs to be pivoted on the base 1 The die unit 2 can be replaced with another punch 24 of a different shape and the corresponding die cavity 212 combination. Therefore, the punches 24 can be selected simply and quickly according to the punching requirements, and the corresponding cavities 212 can also be rotated synchronously, which can effectively reduce the cost of purchasing equipment and the processing time of workpieces, so the cost can be achieved. The purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: base

11: Base shaft

12: Room

13: Limit slot

131: Notch

14: limit piece

2: Die unit

21: Lower die

211, 211a: material channel

212, 212a: mold cavity

213: Through hole

214: Assembly

22: upper die

221: Boycott

222: body

23: Linkage device

231: Link Rod

232: Orifice

233: Piercing

234: Sliding Rod

235: small aperture

236: Large aperture

237: Pole

238: Head

24, 24a, 24b, 24c: punch

25: Elastic

3: positioning device

31, 31a: positioning slot

32: positioning slider

4: Feeding base

41: Feeding chute

42: Ruler

43: fixed parts

5: blank

6: Power plant

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is an incomplete three-dimensional exploded view illustrating an embodiment of the rotary die device of the present invention; Figure 2 is a schematic diagram illustrating a punching position of one of the punches of the embodiment; Figures 3 and 4 are each an incomplete cross-sectional side view, illustrating that the embodiment is suitable for continuous action used with a power device; and Fig. 5 is a schematic diagram illustrating the rotation of another punch of the embodiment from a preparation position to the punching position.

1: base

11: Base shaft

12: Room

13: Limit slot

131: Notch

2: Die unit

21: Lower die

211: Containment Channel

212: Mould Cavity

213: Through hole

214: Assembly

22: upper die

221: Boycott

222: body

23: Linkage device

231: Link Rod

232: Orifice

233: Piercing

234: Sliding Rod

24: Punch

25: Elastic

3: positioning device

31: positioning slot

32: positioning slider

4: Feeding base

41: Feeding chute

Claims (13)

A rotary die device comprising: a die unit and a linkage device; wherein the die unit has at least an upper die and a lower die opposite to the upper die, and the upper die is set in the direction of the lower die There are a plurality of different types of punches, and the lower mold is provided with matching mold cavities at positions relative to the punches, and the linkage device is set between the upper mold and the lower mold to rotate the The lower mold can be linked with the upper mold, so that the punches always correspond to the matching mold cavities. The rotary die device according to claim 1, further comprising a base, and the lower die is arranged on the base. The rotary die device according to claim 2, wherein a chamber is provided on the base, and the chamber is provided for the lower mold to be contained therein. The rotary die device according to claim 3, wherein the chamber of the base is provided with a base shaft, the lower die is provided with a through hole opposite to the base shaft, and the upper die is sleeved on the base shaft . The rotary die device according to claim 4, wherein an elastic member is provided between the upper mold and the lower mold, and the upper mold uses the elastic force of the elastic member to cause energy between the upper mold and the lower mold Always keep a distance. The rotary die device according to claim 2, wherein the position of the lower die relative to the cavity is respectively provided with a material containing channel. The rotary die device according to claim 2, further comprising a positioning device for positioning the die unit on the base. The rotary die device according to claim 7, wherein the positioning device includes a plurality of positioning grooves provided on the lower mold and recessed from its periphery, and a One of the positioning sliding parts of the positioning groove can be extended on the base. The rotary die device according to claim 6, wherein one end of the base is connected with a feeding base, and the feeding base is provided with a feeding trough, and the base is opposite to the feeding trough. There is a limit slot. The rotary die device according to claim 9, wherein the two notches of the limiting groove of the base are respectively communicated with the feeding groove of the feeding base and the material containing passage of the lower mold. The rotary die device according to claim 9, wherein a plurality of limit members are provided on the base relative to the limit slot. The rotary die device according to claim 9, wherein the feeding base further includes a ruler in the same direction as the limiting groove. The rotary die device according to claim 1, wherein the linkage device has at least one linkage rod provided on the upper die and at least one hole provided on the lower die.

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