CN220387636U - Multi-step type pole-shrinking mould - Google Patents
Multi-step type pole-shrinking mould Download PDFInfo
- Publication number
- CN220387636U CN220387636U CN202321737384.6U CN202321737384U CN220387636U CN 220387636 U CN220387636 U CN 220387636U CN 202321737384 U CN202321737384 U CN 202321737384U CN 220387636 U CN220387636 U CN 220387636U
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- China
- Prior art keywords
- rod
- hole
- shrinking
- cylinder
- mold
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Links
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 206010040007 Sense of oppression Diseases 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a multi-step rod shrinking mold, which comprises an upper mold, a lower mold, an inserting hole, a rod shrinking hole, a clamping plate, a pressing head and an oil cylinder, wherein the lower mold is provided with a rod shrinking hole which is vertically arranged, the rod shrinking hole penetrates through the upper end and the lower end of the lower mold, the pressing head is inserted into the rod shrinking hole from the bottom of the rod shrinking hole, the bottom of the pressing head is connected with the oil cylinder which drives the pressing head to move up and down, the upper mold is arranged above the lower mold, the lower end of the upper mold is provided with an inserting hole, a straight rod part which does not need to shrink is inserted into the inserting hole, the top end of the straight rod abuts against the top end of the inserting hole, the upper end surface of the lower mold is provided with two mounting plates, and the two mounting plates are symmetrically distributed on two sides of the rod shrinking hole. According to the utility model, the supporting rod is clamped by the multi-layer clamping plates, the rod can be contracted once when one group of clamping plates is released, so that the supporting rod can be contracted in multiple steps, a workpiece is not easy to break in the rod contraction process, and the product rate and the production efficiency are improved.
Description
[ field of technology ]
The utility model relates to the technical field of machining, in particular to the technical field of a rod shrinking die.
[ background Art ]
The existing workpiece needs to be subjected to rod shrinking treatment in the production process, and the concrete mode is that a part of a straight rod is subjected to rod shrinking treatment. Because the length of the part needing the pole is relatively longer, the situation that the pole shrinking part is broken due to bending in the pole shrinking process easily occurs when the existing pole shrinking mould is adopted for carrying out one-time pole shrinking, the reliability of the mould is poor, and the rejection rate is high.
[ utility model ]
The utility model aims to solve the problems in the prior art, and provides a multi-step rod shrinking die which can enable the rod shrinking process to be carried out step by step and the workpiece is not easy to break.
In order to achieve the above purpose, the utility model provides a multi-step rod shrinking mold, which comprises an upper mold, a lower mold, an inserting hole, a rod shrinking hole, a clamping plate, a pressing head and an oil cylinder, wherein the lower mold is provided with the rod shrinking hole which is vertically arranged, the rod shrinking hole penetrates through the upper end and the lower end of the lower mold, the pressing head is inserted into the rod shrinking hole from the bottom of the rod shrinking hole, the bottom of the pressing head is connected with the oil cylinder which drives the pressing head to move up and down, the upper mold is arranged above the lower mold, the lower end of the upper mold is provided with an inserting hole, a rod part without the rod shrinking is inserted into the inserting hole, the top end of the straight rod abuts against the top end of the inserting hole, the upper end face of the lower mold is provided with two mounting plates which are symmetrically distributed on two sides of the rod shrinking hole, the opposite sides of the two mounting plates are respectively fixedly provided with a horizontally arranged air cylinder, the air cylinders on the two mounting plates are vertically arranged from bottom to top, the air cylinders on each air cylinder are in one-to-one correspondence, the movable end of each air cylinder is connected with the clamping plate, the corresponding two air cylinders clamp the straight rod is clamped by the corresponding to the clamping plate, and the clamping groove corresponding to the straight rod is arranged on the clamping plate.
Preferably, the clamping plates are plate bodies arranged horizontally, adjacent clamping plates are positioned on the same side of the telescopic rod hole and are contacted with each other, and the lowest clamping plate is contacted with the upper end face of the lower die.
Preferably, the bottom end of the jack is provided with an outwardly expanding transition bell mouth.
Preferably, the lower end of the compression head is always positioned outside the rod shrinkage hole.
The utility model has the beneficial effects that: according to the utility model, the supporting rod is clamped by the multi-layer clamping plates, the rod can be contracted once when one group of clamping plates is released, so that the supporting rod can be contracted in multiple steps, a workpiece is not easy to break in the rod contraction process, and the product rate and the production efficiency are improved.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a multi-step pinch bar mold of the present utility model;
FIG. 2 is a front cross-sectional view of the last shot of the multi-shot mold of the present utility model;
in the figure: 1-lower die, 2-upper die, 3-straight rod, 10-pole shrinkage hole, 11-compression head, 12-cylinder, 15-mounting plate, 16-cylinder, 17-clamping plate, 20-jack and 21-transition bell mouth.
[ detailed description ] of the utility model
Referring to fig. 1 and 2, the multi-step rod shrinking mold is used for shrinking a part of a straight rod 3, is installed on a cold header and comprises an upper mold 2, a lower mold 1, an inserting hole, a rod shrinking hole 10, a clamping plate 17, a pressing head 11 and an oil cylinder 12, wherein the lower mold 1 is provided with a rod shrinking hole 10 which is vertically arranged, the rod shrinking hole 10 penetrates through the upper end and the lower end of the lower mold 1, the pressing head 11 is inserted into the rod shrinking hole 10 from the bottom of the rod shrinking hole 10, and the bottom of the pressing head 11 is connected with the oil cylinder 12 which drives the pressing head 11 to move up and down.
An upper die 2 is arranged above the lower die 1, the upper die 2 is connected with a pressing mechanism on the cold header, a jack 20 is arranged at the lower end of the upper die 2, a rod-shrinking-free part of the straight rod 3 is inserted into the jack 20, the top end of the straight rod 3 butts against the top end of the jack 20,
the upper end face of the lower die 1 is provided with two mounting plates 15, the two mounting plates 15 are symmetrically distributed on two sides of the rod shrinkage hole 10, the air cylinders 16 which are horizontally arranged are fixed on the opposite sides of the two mounting plates 15, the air cylinders 16 are vertically arranged from bottom to top, the air cylinders 16 on the two mounting plates 15 are in one-to-one correspondence, the movable end of each air cylinder 16 is connected with a clamping plate 17, the clamping plates 17 connected with the corresponding two air cylinders 16 clamp the straight rod 3, and semicircular clamping grooves corresponding to the straight rod 3 are formed in the clamping plates 17.
The clamping plates 17 are horizontally arranged plate bodies, adjacent clamping plates 17 are positioned on the same side of the telescopic rod hole 10 and are in contact with each other, and the lowest clamping plate 17 is in contact with the upper end face of the lower die 1.
The bottom end of the insertion hole 20 is provided with an outwardly expanding transition bell mouth 21.
The lower end of the compression head 11 is always positioned outside the telescopic rod hole 10.
The working process of the utility model comprises the following steps:
in the working process of the multi-step rod shrinking mold, the mold is arranged on a cold header, a straight rod 3 is inserted into an upper mold 2, then the upper mold 2 moves downwards for a certain distance until the tail end of the straight rod 3 enters a rod shrinking hole 10, then a clamping plate 17 clamps the straight rod 3 under the driving of an air cylinder 16, the clamping force is not excessively high, the straight rod 3 can move when the clamping force needs to ensure that the upper mold 2 moves, then the upper mold 2 continues to move downwards until the lower mold 2 is clamped by the clamping plate 17 at the uppermost end, then a pressing head 11 moves upwards to shrink the straight rod 3 for the first time under the driving of an oil cylinder 12, then the pressing head 11 moves downwards to loosen the uppermost group of clamping plates 17, then the pressing head 11 moves upwards to shrink the straight rod 3 for the second time, and then one group of clamping plates 17 is loosened for the first time as described above until the last group of clamping plates 17 are loosened to shrink the last time, and the whole rod shrinking operation is completed.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (4)
1. The multi-step pole shrinking die is used for shrinking a part of a straight pole (3), and is characterized in that: including last mould (2), bed die (1), patchhole, compression rod hole (10), grip block (17), oppression head (11), hydro-cylinder (12), be equipped with a vertical pole hole (10) that contracts of setting on bed die (1), the upper and lower both ends of contracting pole hole (10) run through bed die (1), oppression head (11) insert in contracting pole hole (10) from the bottom of contracting pole hole (10), oppression head (11) bottom links to each other with hydro-cylinder (12) that drive oppression head (11) reciprocates, the top of bed die (1) is equipped with a mould (2) in, goes up mould (2) lower extreme and is equipped with jack (20), the top of straight-bar (3) is equipped with two mounting plates (15) on the up end of bed die (1), two mounting plates (15) symmetrical distribution in the both sides of contracting pole hole (10), two cylinder (16) that correspond one by one are fixed to two cylinder (16) of relative side of two mounting plates (15), and two cylinder (16) are arranged in parallel connection with each other in the cylinder (16) of vertical cylinder (16) of straight-bar (3), clamping plates (17) connected with the corresponding two cylinders (16) clamp the straight rod (3), and semicircular clamping grooves corresponding to the straight rod (3) are formed in the clamping plates (17).
2. The multi-step stalk reducing mold of claim 1, wherein: the clamping plates (17) are horizontally arranged plate bodies, adjacent clamping plates (17) positioned on the same side of the rod shrinkage hole (10) are in contact with each other, and the lowest clamping plate (17) is in contact with the upper end face of the lower die (1).
3. The multi-step stalk reducing mold of claim 1, wherein: the bottom end of the jack (20) is provided with an outwards-expanded transition bell mouth (21).
4. The multi-step stalk reducing mold of claim 1, wherein: the lower end of the pressing head (11) is always positioned outside the rod shrinkage hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321737384.6U CN220387636U (en) | 2023-07-04 | 2023-07-04 | Multi-step type pole-shrinking mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321737384.6U CN220387636U (en) | 2023-07-04 | 2023-07-04 | Multi-step type pole-shrinking mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220387636U true CN220387636U (en) | 2024-01-26 |
Family
ID=89599990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321737384.6U Active CN220387636U (en) | 2023-07-04 | 2023-07-04 | Multi-step type pole-shrinking mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220387636U (en) |
-
2023
- 2023-07-04 CN CN202321737384.6U patent/CN220387636U/en active Active
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