CN210547094U - Quick-change type cylinder barrel backward extrusion die - Google Patents
Quick-change type cylinder barrel backward extrusion die Download PDFInfo
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- CN210547094U CN210547094U CN201921003843.1U CN201921003843U CN210547094U CN 210547094 U CN210547094 U CN 210547094U CN 201921003843 U CN201921003843 U CN 201921003843U CN 210547094 U CN210547094 U CN 210547094U
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Abstract
The utility model discloses a quick-change type cylinder barrel backward extrusion die, wherein a connecting rod of an upper die assembly is vertically arranged at the bottom of an upper mounting seat, a punch is arranged at the lower end of the connecting rod, and a vertically extending first cooling liquid channel is arranged in the connecting rod; a female die of the lower die assembly is arranged at the top of the lower mounting seat, a die cavity used for being matched with the upper die assembly is arranged in the female die, a cooling water jacket is sleeved outside the female die, a second cooling liquid channel is arranged in the cooling water jacket, an outer pressing sleeve is sleeved outside the cooling water jacket, and a clamping device is connected with the outer pressing sleeve to radially clamp the outer pressing sleeve; structural design is reasonable, realizes the inside cooling of terrace die through set up first coolant liquid passageway in the connecting rod of terrace die, overlaps the cooling water jacket simultaneously and establishes outside the die, on the one hand in the course of working in the inside first coolant liquid passageway of die and the outside second coolant liquid passageway cooperation of being located the die realize the cooling to terrace die and die, increase of service life, on the other hand is convenient for change terrace die and die as required.
Description
Technical Field
The utility model relates to a metal plastic forming field especially relates to a reverse extrusion die of quick change formula cylinder.
Background
At present, a cylinder body of a hydraulic buffer required by special equipment is generally manufactured and processed in a mode of welding a plug by adopting a solid bar or a seamless steel pipe and a steel plate. Low material utilization rate, large processing allowance, low performance reliability and high production and manufacturing cost. For places with strict requirements on mechanical properties, the mechanical properties required by the material cannot be achieved only by a heat treatment mode at places with thicker thicknesses, and the structure must be refined by a forging processing mode, so that the mechanical properties of the material are improved.
The existing mould, as the technology disclosed in the Chinese patent '35 CrMo steel back wall pipe vertical backward extrusion process and the used extrusion mould' with the publication number CN 104858254B, is composed of an upper mould, a lower mould and a pressure plate, because the upper mould has no cooling device, the convex mould is of an integral structure, the service life of the mould is short in the normal production process, the mould needs to be integrally disassembled when being replaced, the replacement time is long, and the time and the labor are wasted. The lower die is of a two-layer structure, the female die is directly placed on the inner side of the pressing die, a cooling water channel is arranged between the two layers of dies, the sealing of cooling water is guaranteed, otherwise, water leakage is easy to occur, the requirement on the manufacturing precision of the female die is high, and the phenomenon of water leakage is easily caused due to the fact that the female die is replaced and the female die is not installed in place. Meanwhile, when the female die is replaced, a plurality of compression nuts on the periphery need to be disassembled, so that the time for replacement is long, and the production cost is high. This mould does not have terrace die shedder to when embracing the mould condition, waste time and energy.
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution background art, the utility model provides a quick change formula cylinder backward extrusion mould.
The utility model provides a pair of quick change formula cylinder backward extrusion mould, include: an upper die assembly and a lower die assembly;
the upper die assembly comprises an upper mounting seat, a connecting rod and a male die punch, the connecting rod is vertically arranged at the bottom of the upper mounting seat, the male die punch is detachably mounted at the lower end of the connecting rod, and a first cooling liquid channel which vertically extends is arranged in the connecting rod;
the lower die assembly is located below the upper die assembly and comprises a lower mounting seat, a female die, a cooling water jacket, an outer pressing sleeve and a clamping device, the female die is mounted at the top of the lower mounting seat, a die groove matched with the upper die assembly is formed in the female die, the cooling water jacket is sleeved outside the female die, a second cooling liquid channel is formed in the cooling water jacket, the outer pressing sleeve is sleeved outside the cooling water jacket, and the clamping device is connected with the outer pressing sleeve to radially clamp the outer pressing sleeve.
Preferably, the middle part of the outer clamping sleeve is provided with a clamping cavity extending downwards from the top, and the inner diameter of the clamping cavity is gradually increased from top to bottom.
Preferably, the middle part of the cooling water jacket is provided with a cooling cavity extending downwards from the top, and the inner diameter of the cooling cavity is gradually increased from top to bottom.
Preferably, the second cooling liquid channel is spirally arranged from top to bottom around the cooling cavity, and the upper end of the second cooling liquid channel is provided with a water outlet and the lower end of the second cooling liquid channel is provided with a water inlet.
Preferably, a cushion block is arranged in the cooling cavity, and the concave die is arranged above the cushion block.
Preferably, still include the ejector beam, be equipped with the installation through-hole of vertical extension on the mount pad down, the die cavity bottom of die is equipped with the opening just the opening part is equipped with the material and fills up, and the vertical setting of ejector beam is in just the upper end supports and leans on the material to fill up in the installation through-hole.
Preferably, the die further comprises two punch lifters which are arranged at the top of the outer pressing sleeve and are symmetrically arranged on two sides of the female die.
Preferably, the terrace die tripper includes tripper body, slider, spring, stop collar, guide bar, the tripper body is fixed at outer compressing tightly the cover top, be equipped with on the tripper body to keeping away from the spout that the die direction runs through, the stop collar is located the spout and keeps away from die one end and with this body coupling of tripper, be equipped with the spacing hole with the spout intercommunication on the stop collar, but slider slidable mounting just is located the stop collar and is close to die one side in the spout, guide bar one end is equipped with the stopper, the stopper is located the stop collar and keeps away from slider one end, the guide bar is kept away from stopper one end and is passed spacing hole is connected with the slider, the spring is located the stop collar and keeps away.
In the quick-change cylinder barrel backward extrusion die, the connecting rod of the upper die assembly is vertically arranged at the bottom of the upper mounting seat, the punch is arranged at the lower end of the connecting rod, and a vertically extending first cooling liquid channel is arranged in the connecting rod; the female die of the lower die assembly is arranged at the top of the lower mounting seat, a die groove used for being matched with the upper die assembly is formed in the female die, the cooling water jacket is sleeved outside the female die, a second cooling liquid channel is formed in the cooling water jacket, the outer pressing sleeve is sleeved outside the cooling water jacket, and the clamp is connected with the outer pressing sleeve to radially clamp the outer pressing sleeve. Through the quick-change cylinder backward extrusion die of above-mentioned optimal design, structural design is reasonable, realizes the inside cooling of terrace die through set up first coolant liquid passageway in the connecting rod of terrace die, overlaps the cooling water jacket simultaneously and establishes outside the die, and the first coolant liquid passageway that lies in the die on the one hand and the second coolant liquid passageway that lies in the die outside cooperate the realization to the cooling of terrace die and die in the course of working, increase of service life, and on the other hand is convenient for change terrace die and die as required.
Drawings
Fig. 1 is the utility model provides a quick change formula cylinder backward extrusion mould's schematic structure.
Fig. 2 is the utility model provides a structural schematic diagram of terrace die tripper of quick change formula cylinder backward extrusion mould.
Detailed Description
As shown in fig. 1 and 2, fig. 1 is the utility model provides a structural schematic diagram of a quick change formula cylinder backward extrusion mould, fig. 2 is the utility model provides a structural schematic diagram of terrace die discharger of quick change formula cylinder backward extrusion mould.
Referring to fig. 1, the utility model provides a quick change formula cylinder backward extrusion mould, include: an upper die assembly and a lower die assembly;
the upper die assembly comprises an upper mounting seat 11, a connecting rod 12 and a male die punch 13, wherein the connecting rod 12 is vertically arranged at the bottom of the upper mounting seat 11, the male die punch 13 is detachably mounted at the lower end of the connecting rod 12, and a first cooling liquid channel which vertically extends is arranged in the connecting rod 12;
the lower die assembly is located below the upper die assembly and comprises a lower mounting seat 21, a female die 22, a cooling water jacket 23, an outer clamping sleeve 24 and a clamping device 25, the female die 22 is mounted at the top of the lower mounting seat 21, a die cavity used for being matched with the upper die assembly is formed in the female die 22, the cooling water jacket 23 is sleeved outside the female die 22, a second cooling liquid channel is formed in the cooling water jacket 23, the outer clamping sleeve 24 is sleeved outside the cooling water jacket 23, and the clamping device 25 is connected with the outer clamping sleeve 24 to radially clamp the outer clamping sleeve 24.
In the specific working process of the quick-change type cylinder barrel backward extrusion die, when in processing, a substitute workpiece is placed in a die cavity of a female die, and an upper die assembly descends to enable a connecting rod and a male die punch to extend into the die cavity of the female die to complete extrusion; in the extrusion process, the first cooling liquid channel cools the punch of the male die in the middle of the connecting rod, and the second cooling liquid channel cools the female die at the periphery of the female die.
In the embodiment, the quick-change type cylinder barrel backward extrusion die is characterized in that a connecting rod of an upper die assembly is vertically arranged at the bottom of an upper mounting seat, a punch is arranged at the lower end of the connecting rod, and a first cooling liquid channel which extends vertically is arranged in the connecting rod; the female die of the lower die assembly is arranged at the top of the lower mounting seat, a die groove used for being matched with the upper die assembly is formed in the female die, the cooling water jacket is sleeved outside the female die, a second cooling liquid channel is formed in the cooling water jacket, the outer pressing sleeve is sleeved outside the cooling water jacket, and the clamp is connected with the outer pressing sleeve to radially clamp the outer pressing sleeve. Through the quick-change cylinder backward extrusion die of above-mentioned optimal design, structural design is reasonable, realizes the inside cooling of terrace die through set up first coolant liquid passageway in the connecting rod of terrace die, overlaps the cooling water jacket simultaneously and establishes outside the die, and the first coolant liquid passageway that lies in the die on the one hand and the second coolant liquid passageway that lies in the die outside cooperate the realization to the cooling of terrace die and die in the course of working, increase of service life, and on the other hand is convenient for change terrace die and die as required.
In a specific embodiment, the middle part of the outer pressing sleeve 24 is provided with a clamping cavity extending downwards from the top, the inner diameter of the clamping cavity is gradually increased from top to bottom, and similarly, the middle part of the cooling water jacket 23 is provided with a cooling cavity extending downwards from the top, the inner diameter of the cooling cavity is gradually increased from top to bottom; during processing, the holding effect of the outer pressing sleeve and the cooling water jacket is improved, and the reliability of installation of the lower die assembly during processing and demolding is improved.
In a specific arrangement mode of the second cooling liquid channel, the second cooling liquid channel is spirally arranged from top to bottom around the cooling cavity, the upper end of the second cooling liquid channel is provided with a water outlet, and the lower end of the second cooling liquid channel is provided with a water inlet; thereby ensuring the cooling effect of the female die.
In other specific embodiments, the cooling cavity is provided with a cushion block 3, and the female die 22 is arranged above the cushion block 3, so that the adaptability of the lower die assembly is improved, and the cooling die is suitable for female dies with different sizes.
In order to facilitate demolding of the extruded material, the extrusion die further comprises an ejector rod 5, a vertically extending installation through hole is formed in the lower installation base 21, an opening is formed in the bottom of a die cavity of the female die 22, a material pad 4 is arranged at the opening, the ejector rod 5 is vertically arranged in the installation through hole, and the upper end of the ejector rod abuts against the material pad 4; after the punching is finished, the upper die assembly rises, the processed workpiece is left in the die cavity of the female die, and the material block and the workpiece above the material block are pushed upwards through the material ejecting rod to eject upwards together.
In order to facilitate loading and unloading from the male die, referring to fig. 2, the male die unloading device further comprises two male die unloading devices, wherein the two male die unloading devices are mounted at the top of the outer pressing sleeve 24 and are symmetrically arranged on two sides of the female die 22; the male die discharger is arranged at the top of the female die, and when the punch head of the male die ascends after stamping is finished, the male die discharger prevents a workpiece from ascending together with the male die and helps the male die to discharge; meanwhile, the male die discharger is arranged at the top of the female die in the society, so that the male die discharger is convenient to replace due to use abrasion.
In a specific setting mode of the male die discharger, the male die discharger comprises a discharger body 51, a sliding block 52, a spring 53, a limiting sleeve 54 and a guide rod 55, wherein the discharger body 51 is fixed at the top of the outer pressing sleeve 24, the discharger body 51 is provided with a sliding groove penetrating in the direction away from the female die 22, the limiting sleeve 54 is positioned at one end of the sliding groove away from the female die 22 and connected with the discharger body 51, the limiting sleeve 54 is provided with a limiting hole communicated with the sliding groove, the sliding block 52 is slidably mounted in the sliding groove and positioned at one side, close to the female die 22, of the limiting sleeve 54, one end of the guide rod 55 is provided with a limiting block, the limiting block is positioned at one end, away from the sliding block 52, of the guide rod 55 passes through the limiting hole to be connected with the sliding block 52, and the spring; the slide block returns to the direction far away from the female die before punching, and after punching, the slide block is popped up under the action of the spring to limit the workpiece in the die cavity of the female die, so that when the upper die assembly ascends, the workpiece is unloaded from the punch of the male die.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A quick-change cylinder barrel backward extrusion die is characterized by comprising: an upper die assembly and a lower die assembly;
the upper die assembly comprises an upper mounting seat (11), a connecting rod (12) and a male die punch (13), the connecting rod (12) is vertically arranged at the bottom of the upper mounting seat (11), the male die punch (13) is detachably mounted at the lower end of the connecting rod (12), and a first cooling liquid channel which vertically extends is arranged in the connecting rod (12);
the lower die assembly is located below the upper die assembly, the lower die assembly comprises a lower mounting seat (21), a female die (22), a cooling water jacket (23), an outer pressing sleeve (24) and a clamping device (25), the female die (22) is mounted at the top of the lower mounting seat (21), a die cavity matched with the upper die assembly is formed in the female die (22), the cooling water jacket (23) is sleeved outside the female die (22), a second cooling liquid channel is formed in the cooling water jacket (23), the outer pressing sleeve (24) is sleeved outside the cooling water jacket (23), and the clamping device (25) is connected with the outer pressing sleeve (24) and radially clamps the outer pressing sleeve (24).
2. The quick-change cylinder barrel counter-extrusion die as claimed in claim 1, characterized in that the middle of the outer pressing sleeve (24) is provided with a clamping cavity extending downwards from the top, the inner diameter of the clamping cavity gradually increasing from top to bottom.
3. The quick-change cylinder barrel counter-extrusion die as claimed in claim 1, wherein the cooling water jacket (23) is provided in the middle with a cooling cavity extending downward from the top, the inner diameter of the cooling cavity gradually increasing from top to bottom.
4. The quick-change cylinder barrel backward extrusion die as claimed in claim 3, wherein a second cooling liquid channel is spirally arranged from top to bottom around the cooling cavity, and the upper end of the second cooling liquid channel is provided with a water outlet and the lower end is provided with a water inlet.
5. The quick-change cylinder barrel counter-extrusion die as claimed in claim 3, characterized in that a spacer block (3) is arranged in the cooling chamber, and the female die (22) is arranged above the spacer block (3).
6. The quick-change cylinder barrel backward extrusion die as claimed in claim 1, further comprising an ejector rod (5), wherein a vertically extending mounting through hole is formed in the lower mounting seat (21), an opening is formed in the bottom of a die cavity of the female die (22), a material pad (4) is arranged at the opening, the ejector rod (5) is vertically arranged in the mounting through hole, and the upper end of the ejector rod abuts against the material pad (4).
7. The quick-change cylinder barrel backward extrusion die as claimed in claim 1 or 6, further comprising two punch strippers mounted on top of the outer pressing sleeve (24) and symmetrically arranged on both sides of the female die (22).
8. The quick-change cylinder barrel backward extrusion die as recited in claim 7, wherein the male die discharger comprises a discharger body (51), a slide block (52), a spring (53), a limiting sleeve (54) and a guide rod (55), the discharger body (51) is fixed at the top of the outer pressing sleeve (24), the discharger body (51) is provided with a sliding chute which penetrates in the direction away from the female die (22), the limiting sleeve (54) is positioned at one end of the sliding chute away from the female die (22) and connected with the discharger body (51), the limiting sleeve (54) is provided with a limiting hole communicated with the sliding chute, the slide block (52) is slidably mounted in the sliding chute and positioned at one side of the limiting sleeve (54) close to the female die (22), one end of the guide rod (55) is provided with a limiting block, the limiting block is positioned at one end of the limiting sleeve (54) away from the slide block (52), one end of the guide rod (55) away from the limiting, the spring (53) is positioned on one side of the limiting sleeve (54) far away from the sliding block (52) and sleeved outside the guide rod (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003843.1U CN210547094U (en) | 2019-06-28 | 2019-06-28 | Quick-change type cylinder barrel backward extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003843.1U CN210547094U (en) | 2019-06-28 | 2019-06-28 | Quick-change type cylinder barrel backward extrusion die |
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| Publication Number | Publication Date |
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| CN210547094U true CN210547094U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921003843.1U Active CN210547094U (en) | 2019-06-28 | 2019-06-28 | Quick-change type cylinder barrel backward extrusion die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202020A (en) * | 2019-06-28 | 2019-09-06 | 安徽嘉岳金属科技有限公司 | A kind of quick-changing type cylinder barrel indirect-extrusion mould |
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2019
- 2019-06-28 CN CN201921003843.1U patent/CN210547094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202020A (en) * | 2019-06-28 | 2019-09-06 | 安徽嘉岳金属科技有限公司 | A kind of quick-changing type cylinder barrel indirect-extrusion mould |
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