CN212285446U - Convex ring punch forming device - Google Patents

Convex ring punch forming device Download PDF

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Publication number
CN212285446U
CN212285446U CN202021771655.6U CN202021771655U CN212285446U CN 212285446 U CN212285446 U CN 212285446U CN 202021771655 U CN202021771655 U CN 202021771655U CN 212285446 U CN212285446 U CN 212285446U
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CN
China
Prior art keywords
die
punch
floating
sleeve
groove
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Active
Application number
CN202021771655.6U
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Chinese (zh)
Inventor
张秀平
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Trans Matic Precision Metal Moulding Suzhou Co ltd
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Trans Matic Precision Metal Moulding Suzhou Co ltd
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Priority to CN202021771655.6U priority Critical patent/CN212285446U/en
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Abstract

The utility model discloses a bulge loop stamping forming device, including the lower mould, the floating piece, the die sinking subassembly and last die assembly, the lower mould is fixed to be set up on the bottom plate, the lower mould top is provided with the first punching a hole that matches with the tubular product internal diameter, the floating piece surrounds around the lower mould, a plurality of die sinking subassemblies radially run through the floating piece, the die sinking subassembly is combined to form and is punched a hole with the second that the tubular product external diameter matches in the lower mould top, the second lateral wall that punches a hole is provided with cyclic annular shaping chamber, it includes first drift and second drift to go up the die assembly, the second drift slides and sets up in first drift, the second drift includes with first punching a hole complex interior punching part and with the second punch a hole complex outer splenium, first drift corresponds the floating piece setting, be provided with the punching press head that corresponds the second drift. The utility model discloses a three board-like stamping die utilize mechanical cooperation to carry out the die sinking, make things convenient for getting of tubular product to put the material, simple structure, the action is reliable, long service life.

Description

Convex ring punch forming device
Technical Field
The utility model relates to a mold design and manufacturing technical field, concretely relates to bulge loop stamping forming device.
Background
The metal pipe is often required to be processed with convex rings to meet different use requirements, at present, stamping forming is mainly adopted, however, in the mode, a pressing die and a pier head are two parts separated from each other, the actual working process is difficult to ensure on the same central shaft, the wall thicknesses of different parts of the pipe are different easily, namely the pipe wall thicknesses are not uniform, the pipe generates excessive stress locally in the deformation process, and therefore the pipe is cracked and damaged, or the pipe wall is sunken, the deformation tolerance of the product is difficult to control, the production and processing efficiency is low, the labor intensity is high, meanwhile, a convex ring stamping device in the prior art is only suitable for the pipe with the same pipe diameter, and the pipe with the different pipe diameters cannot be processed, even if the pipe can be processed, the taking and placing of the pipe are also very inconvenient.
Therefore, a device capable of processing convex rings on pipes with different diameters is needed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a bulge loop stamping forming device adopts three board-like stamping die, utilizes mechanical cooperation to carry out the die sinking, makes things convenient for getting of tubular product to put the material, simple structure, and the action is reliable, long service life.
In order to solve the technical problem, the utility model provides a convex ring punch forming device, which comprises a lower die, a floating part, a die sinking component and an upper die component, the lower die is fixedly arranged on the bottom plate, the top of the lower die is provided with a first punched hole matched with the inner diameter of the pipe, the floating part surrounds the periphery of the lower die, a plurality of die sinking assemblies penetrate through the floating part along the radial direction, the die opening assembly is combined above the lower die to form a second punched hole matched with the outer diameter of the pipe, an annular forming cavity is arranged on the side wall of the second punched hole, the upper die assembly comprises a first punch head and a second punch head, the second punch head is arranged in the first punch head in a sliding mode, the second punch comprises an inner punching part matched with the first punched hole and an outer pressing part matched with the second punched hole, the first punch corresponds to the floating part, and a punching head corresponding to the second punch is arranged in the first punch.
Furthermore, the die sinking assembly comprises a die sleeve, a sliding block and a die plate, the die sleeve is fixedly connected with the bottom plate outside the floating part, the die plate radially penetrates through the floating part, the sliding block is fixedly connected to the outer end of the die plate, a guide groove is formed in the sliding block, and a pin arranged on the die sleeve penetrates through the guide groove.
Further, the guide groove comprises a downward inclined section which is inclined inwards and downwards and an upper straight section which is arranged vertically.
Furthermore, a reset groove is arranged in the floating part along the radial direction, a reset spring is arranged in the reset groove, one end of the reset spring is fixedly connected with the floating part, and the other end of the reset spring is connected with the template.
Further, the die sleeve comprises an upper die sleeve and a lower die sleeve, the lower die sleeve is fixedly connected with the bottom plate, the lower die sleeve and the upper die sleeve are provided with corresponding connecting grooves, and the lower die sleeve and the upper die sleeve are fixedly connected through connecting pins inserted into the connecting grooves.
Furthermore, a plurality of guide grooves are formed in the floating piece, and guide columns inserted into the guide grooves are arranged on the bottom plate.
Furthermore, a third punch is arranged between the first punch and the second punch, pin holes matched with each other are formed in the first punch and the third punch, and a fixing pin penetrates through the pin holes to fix the first punch and the third punch.
Furthermore, a movable groove is formed in the side face of the second punch, a pin groove for fixing a guide pin is formed in the first punch, the guide pin is inserted between the pin groove and the movable groove, and the second punch moves up and down within the length range of the movable groove.
Further, the upper die assembly is arranged to be in a flat tenon shape.
Furthermore, the number of the die opening assemblies is four, and the four die opening assemblies are symmetrically arranged on the periphery of the floating part.
The utility model discloses a beneficial effect that bulge loop stamping forming device compares with prior art is, adopts three board-like stamping die, utilizes mechanical cooperation to carry out the die sinking, makes things convenient for getting of tubular product to put the material, simple structure, and the action is reliable, long service life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the float of the present invention;
FIG. 4 is a schematic view of the interior of the float of the present invention;
fig. 5 is a schematic view of the upper die assembly of the present invention.
The reference numbers in the figures illustrate: 10. the die comprises a lower die, 11, a bottom plate, 12, a first punching hole, 20, a floating piece, 21, a guide post, 30, a die opening assembly, 31, a second punching hole, 32, an annular forming cavity, 33, a die sleeve, 331, an upper die sleeve, 332, a lower die sleeve, 333, a connecting pin, 34, a sliding block, 35, a die plate, 36, a guide groove, 361, a lower inclined section, 362, an upper straight section, 37, a pin, 38, a reset groove, 39, a reset spring, 40, an upper die assembly, 41, a first punch, 42, a second punch, 421, an inner punching part, 422, an outer pressing part, 43, a punching head, 44, a third punch, 45, a fixing pin, 46, a guide pin, 47 and a movable groove.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, a view of an embodiment of a device for press forming a male ring according to the present invention is shown. The utility model discloses a forming device includes lower mould 10, floating piece 20, die sinking subassembly 30 and last mould subassembly 40. The lower die 10 supports the pipe, the upper die punches downwards to compress the floating part 20, the die opening assembly 30 is restrained to limit the pipe, and finally the pipe forms a convex ring at a designated position around the pipe under the limitation of the die opening assembly 30; after the punching is finished, the upper die resets, the floating piece 20 rebounds and resets, the die opening assembly 30 is ejected to the periphery, the pipe is released, and the finished product is convenient to take out and the workpiece to be machined is put in again.
Specifically, referring to fig. 2 and 3, a cross-sectional view and a schematic structural view of the lower mold 10 of the present invention are shown. The lower die 10 is fixedly arranged on the bottom plate 11, the top of the lower die 10 is provided with a first punched hole 12 matched with the inner diameter of the pipe, the floating part 20 surrounds the periphery of the lower die 10, a plurality of die sinking assemblies 30 penetrate through the floating part 20 along the radial direction, the mold opening assembly 30 forms a second punched hole 31 matching with the outer diameter of the pipe above the lower mold 10, the side wall of the second punched hole 31 is provided with an annular forming cavity 32, the upper die assembly 40 comprises a first punch 41 and a second punch 42, the second punch 42 is slidably arranged in the first punch 41, the second punch 42 comprises an inner punch 421 matched with the first punched hole 12 and an outer punch 422 matched with the second punched hole 31, the first punch 41 is disposed corresponding to the floating member 20, and a punching head 43 corresponding to the second punch 42 is disposed in the first punch 41. When the punching die works, different pipe diameter sections of the pipe are sleeved on the lower die 10, the lower die 10 supports the pipe, the pipe section of the convex ring to be punched is arranged in the second punched hole 31 formed by the die sinking assembly 30, the second punch 42 is inserted into the second punched hole 31 during punching, wherein the inner punching part 421 is inserted into the pipe and the first punching hole 12, the outer pressing part 422 presses against the top of the pipe, the first punch 41 presses against the floating part 20, the first punch 41 compresses the floating part 20 with the continuous pressing of the upper die, the second punch 42 slides towards the upper part of the first punch 41 until the second punch 42 presses against the punching head 43 at the top of the first punch 41, the first punch 41 continues to press downwards, the outer pressing part 422 presses the pipe downwards, because the inside and the outside of the pipe are limited by the second punch 42, the die sinking assembly 30 and the first punch 41 respectively, at this time, the pipe can only expand at the position of the annular forming cavity 32, namely, a convex ring is formed at the designed position.
At this time, since the protruding ring protrudes outward, and the pipe diameter of other sections of the pipe is different from the second punched hole 31 formed by the mold opening assembly 30, in order to enable the pipe after stamping to be taken out, the mold opening assembly 30 should expand outward to release the pipe, in order to achieve that the mold opening assembly 30 automatically opens outward when opening the mold, in this embodiment, the mold opening assembly 30 includes a mold sleeve 33, a slider 34 and a mold plate 35, the mold sleeve 33 is fixedly connected with the bottom plate 11 outside the floating member 20, the mold plate 35 radially penetrates through the floating member 20, the slider 34 is fixedly connected to the outer end of the mold plate 35, the slider 34 is provided with a guide groove 36, and a pin 37 arranged on the mold sleeve 33 penetrates through the guide groove 36. Because die sleeve 33 and bottom plate 11 fixed connection, pin 37 sets up on die sleeve 33, therefore the position of pin 37 is unchangeable all the time, because slider 34 and template 35 run through floating piece 20, move up when the upper die, floating piece 20 kick-backs upwards, promote slider 34 and template 35 rebound, at the in-process of slider 34 rebound, because the spacing of pin 37, template 35 is driven outwards by slider 34 and is removed tubular product, makes things convenient for taking out of tubular product.
Further, to ensure that the floating member 20 can be completely released to the free state, the guide groove 36 includes a downward inclined section 361 inclined inward and downward and an upper straight section 362 arranged vertically. So that the engagement of the pin 37 and the guide slot 36 does not limit the compression and release of the float member 20. In order to ensure that the templates 35 can be tightly spliced when the upper die is pressed down, a reset groove 38 is radially arranged in the floating part 20, a reset spring 39 is arranged in the reset groove 38, one end of the reset spring 39 is fixedly connected with the floating part 20, and the other end of the reset spring is connected with the templates 35. The return spring 39 pulls the diaphragm plate in the splicing direction, ensuring that the template 35 is spliced tightly. Furthermore, to facilitate assembling of the parts, the die sleeve 33 includes an upper die sleeve 331 and a lower die sleeve 332, the lower die sleeve 332 is fixedly connected to the bottom plate 11, corresponding connecting slots are provided on the lower die sleeve 332 and the upper die sleeve 331, and the lower die sleeve 332 and the upper die sleeve 331 are fixedly connected by a connecting pin 333 inserted into the connecting slots. The lower die sleeve 332 surrounds the floating member 20, and the upper die sleeve 331 covers the upper periphery of the floating member 20, so that the lower die sleeve 332 and the upper die sleeve 331 cooperate to protect the floating member 20 on one hand, and the upper die sleeve 331 forms a limit for the template 35 on the other hand.
Referring to fig. 4, which is a schematic diagram of the internal structure of the floating member 20, in order to ensure that the floating member 20 can be retracted in the vertical direction, a plurality of guide grooves 36 are provided on the floating member 20, and guide posts 21 inserted into the guide grooves 36 are provided on the base plate 11. With the guidance of the guide posts 21, the float 20 can only be scaled in the vertical direction. The number of the die sinking assemblies 30 is four, and the four die sinking assemblies 30 are symmetrically arranged around the floating member 20. The die sinking assemblies 30 are identical in shape and convenient to process and splice.
Referring to fig. 1 and 5, the upper mold structure of the present invention is schematically shown. Since the inner diameter of the top of the floating member 20 is larger than that of the second punched hole 31, in order to ensure complete restriction of the pipe, in this embodiment, a third punch 44 is further disposed between the first punch 41 and the second punch 42, the third punch 44 is punched between the floating member 20 and the second punch 42, in order to fix the third punch 44, pin holes which are mutually matched are disposed on the first punch 41 and the third punch 44, and a fixing pin 45 passes through the pin holes to fix the first punch 41 and the third punch 44. Meanwhile, in order to realize the up-and-down movement of the second punch 42 in the first punch 41, a movable groove 47 is formed in the side surface of the second punch 42, a pin groove for fixing a guide pin 46 is formed in the first punch 41, the guide pin 46 is inserted between the pin groove and the movable groove 47, and the second punch 42 moves up and down in the length range of the movable groove 47. The relative position of the guide pin 46 and the first punch 41 is fixed, and when the second punch 42 moves up and down in the first punch 41, rolling friction is generated between the guide pin 46 and the second punch 42, so that friction force is small, and smooth operation of the second punch 42 is ensured. Further, the upper die assembly 40 is provided in a tongue-and-groove shape. So that the punching force is more concentrated.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (10)

1. A convex ring punch forming device is characterized by comprising a lower die, a floating part, a die opening assembly and an upper die assembly, the lower die is fixedly arranged on the bottom plate, the top of the lower die is provided with a first punched hole matched with the inner diameter of the pipe, the floating part surrounds the periphery of the lower die, a plurality of die sinking assemblies penetrate through the floating part along the radial direction, the die opening assembly is combined above the lower die to form a second punched hole matched with the outer diameter of the pipe, an annular forming cavity is arranged on the side wall of the second punched hole, the upper die assembly comprises a first punch head and a second punch head, the second punch head is arranged in the first punch head in a sliding mode, the second punch comprises an inner punching part matched with the first punched hole and an outer pressing part matched with the second punched hole, the first punch corresponds to the floating part, and a punching head corresponding to the second punch is arranged in the first punch.
2. The convex ring punch forming device according to claim 1, wherein the mold opening assembly comprises a mold sleeve, a sliding block and a mold plate, the mold sleeve is fixedly connected with the bottom plate outside the floating part, the mold plate radially penetrates through the floating part, the sliding block is fixedly connected with the outer end of the mold plate, a guide groove is formed in the sliding block, and a pin arranged on the mold sleeve penetrates through the guide groove.
3. The apparatus of claim 2, wherein the guide groove comprises a lower inclined section inclined inward and downward and an upper straight section arranged vertically.
4. The convex ring punch forming device according to claim 2, wherein a reset groove is radially arranged in the floating member, a reset spring is arranged in the reset groove, one end of the reset spring is fixedly connected with the floating member, and the other end of the reset spring is connected with the template.
5. The apparatus of claim 2, wherein the die sleeve comprises an upper die sleeve and a lower die sleeve, the lower die sleeve is fixedly connected with the bottom plate, the lower die sleeve and the upper die sleeve are provided with corresponding connecting grooves, and the lower die sleeve and the upper die sleeve are fixedly connected through connecting pins inserted into the connecting grooves.
6. The apparatus according to claim 1, wherein the floating member has a plurality of guide grooves, and the base plate has guide posts inserted into the guide grooves.
7. The apparatus of claim 1, wherein a third punch is disposed between the first and second punches, and the first and third punches have cooperating pin holes through which fixing pins pass to fix the first and third punches.
8. The apparatus according to claim 1, wherein a movable groove is provided on a side surface of the second punch, a pin groove for fixing a guide pin is provided in the first punch, the guide pin is inserted between the pin groove and the movable groove, and the second punch moves up and down within a length range of the movable groove.
9. The apparatus of claim 1, wherein the upper die assembly is configured as a tongue.
10. The apparatus of claim 1, wherein four mold opening assemblies are provided, and the four mold opening assemblies are symmetrically disposed around the floating member.
CN202021771655.6U 2020-08-21 2020-08-21 Convex ring punch forming device Active CN212285446U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021771655.6U CN212285446U (en) 2020-08-21 2020-08-21 Convex ring punch forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021771655.6U CN212285446U (en) 2020-08-21 2020-08-21 Convex ring punch forming device

Publications (1)

Publication Number Publication Date
CN212285446U true CN212285446U (en) 2021-01-05

Family

ID=73937508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021771655.6U Active CN212285446U (en) 2020-08-21 2020-08-21 Convex ring punch forming device

Country Status (1)

Country Link
CN (1) CN212285446U (en)

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