CN210154782U - Ejector pin interference checking device - Google Patents
Ejector pin interference checking device Download PDFInfo
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- CN210154782U CN210154782U CN201920625709.9U CN201920625709U CN210154782U CN 210154782 U CN210154782 U CN 210154782U CN 201920625709 U CN201920625709 U CN 201920625709U CN 210154782 U CN210154782 U CN 210154782U
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- pin
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Abstract
The utility model discloses a mandril interference checking device, which comprises a test board and a test rod; the test board is provided with a plurality of ejector rod holes, and the ejector rod holes are matched with the die holder through holes of the lower die holder; the test rod is of a cylindrical structure and can be movably arranged in each ejector rod hole, and the length of the test rod is greater than the depth of the die holder through hole; the test board is attached to the lower surface of the lower die holder, and the test rod is inserted into the through hole of the die holder. The utility model discloses play the analog action to the air cushion ejector pin, before stamping process before the cooperation of pegging graft of air cushion ejector pin and die holder, realize carrying out visual test, investigation to interfering in advance, can in time carry out reprocess to unqualified die holder and revise, make the air cushion ejector pin on the board obtain the protection, avoid frequent maintenance and change, saved economic cost and human cost, also made the production progress obtain the assurance simultaneously.
Description
Technical Field
The utility model relates to a stamping die field, concretely relates to ejector pin interference investigation device.
Background
The drawing die is a processing device which enables a flat-plate blank to obtain a stable space shape through plastic deformation under the action of a press machine and the combined action of a female die (an upper die), a blank holder and a male die (a lower die). Drawing dies can be classified into single-action drawing dies and double-action drawing dies according to the equipment used.
Wherein, the single action drawing die needs to utilize an air cushion ejector pin (also called a bed ejector pin) on a machine table. Referring to fig. 1, during the stamping operation, the lower die base is locked on the machine, the air cushion ejector rods penetrate through a plurality of die base through holes in the lower die base and jack up the blank holder, and then the upper die performs downward pressing movement in the vertical direction, so that the blank is formed by drawing and pressing.
Because the lower die base may produce size error in the course of working, lead to the air cushion ejector pin can't pass the die base through-hole of lower die base to produce the interference in the inside of lower die base, make the air cushion ejector pin receive the damage. Moreover, interference occurs in the lower die holder, the jacking process is difficult to observe, and an operator cannot take measures before the interference occurs, so that the air cushion ejector rod needs to be maintained or replaced, and great economic cost and labor cost are caused.
Therefore, a test and inspection device is needed, which can perform test and inspection of interference on the lower die holder in advance before the stamping process; if interference occurs, the lower die base can be machined and corrected again in time, so that the bed ejector rod can be well protected, the production safety is improved, and the bed ejector rod can be free from frequent maintenance and replacement.
SUMMERY OF THE UTILITY MODEL
For overcoming prior art's not enough, the utility model aims to provide a push rod interference investigation device, it can cooperate with the die holder of drawing die to cooperate with the die holder in advance before the punching press, whether can appear interfering the phenomenon through observing the investigation.
The utility model discloses a following technical scheme realizes:
a ram interference troubleshooting apparatus comprising: a test plate and a test stick; the test board is provided with a plurality of ejector rod holes, and the ejector rod holes are matched with the die holder through holes of the lower die holder; the test rod is of a cylindrical structure and can be movably arranged in each ejector rod hole, and the length of the test rod is greater than the depth of the die holder through hole; the test board is attached to the lower surface of the lower die holder, and the test rod is inserted into the through hole of the die holder.
Furthermore, the test rod is provided with a pin hole, a limit pin is inserted in the pin hole, and the test rod is movably arranged on the test board through the matching of the pin hole and the limit pin.
Furthermore, the ejector rod interference checking device also comprises a fixed rail; the fixed rail is arranged on the lower surface of the lower die holder, a clamping groove is formed in the fixed rail, a bayonet matched with the clamping groove is formed in the test board, and the test board is clamped and fixed with the fixed rail.
Furthermore, one end of the fixed rail is also provided with a first positioning key, the lower die holder is correspondingly provided with a first key groove, and the first positioning key is matched and fixed with the first key groove on the lower die holder so as to position the fixed rail.
Furthermore, the ejector rod interference checking device also comprises a fixed pressing plate; the fixed pressing plate is arranged at the bottom of the fixed rail and is fixedly connected with the fixed rail through bolts so as to fix the fixed rail on the lower die base.
Furthermore, a plurality of clamping grooves are formed in the fixed rail.
Further, a plurality of bayonets are arranged on the test board.
Furthermore, the test board further comprises a second positioning key, the second positioning key is fixedly connected with the test board through a screw, a second key groove is correspondingly formed in the lower die holder, and the second positioning key is matched and fixed with the second key groove so as to position the test board.
Furthermore, the test board also comprises a supporting cushion block; the supporting cushion block is arranged at the bottom of the test board and is positioned close to the center of the test board; and the supporting cushion block is attached to the lower surface of the lower die base.
Furthermore, a plurality of pin holes with different heights are formed in the test rod; the side of each pin hole is engraved with a corresponding stroke value.
Compared with the prior art, the utility model discloses the beneficial effect that can reach does: the test board is provided with a plurality of test rods, the test rods are inserted into the die holder through holes of the lower die holder, whether interference occurs or not can be judged by observing the height of each test rod, and if interference exists in a certain die holder through hole, the corresponding test rod can be jacked up. The utility model discloses play the analog action to the air cushion ejector pin, before stamping process before the cooperation of pegging graft of air cushion ejector pin and die holder, realize carrying out visual test, investigation to interfering in advance, can in time carry out reprocess to unqualified die holder and revise, make the air cushion ejector pin on the board obtain the protection, avoid frequent maintenance and change, saved economic cost and human cost, also made the production progress obtain the assurance simultaneously.
Drawings
FIG. 1 is a schematic perspective view of the lower die base in cooperation with an air cushion ejector pin;
FIG. 2 is a schematic perspective view of the lower mold base in cooperation with the present invention;
FIG. 3 is a bottom view of the lower die holder;
fig. 4 is a perspective view of the present invention;
fig. 5 is an exploded view of the present invention.
In the figure: 10. an air cushion ejector rod; 20. a lower die holder; 21. a die holder through hole; 22. a first keyway; 23. a second keyway; 30. a mandril interference checking device; 31. a test board; 311. a jack rod hole; 312. supporting the cushion block; 313. a bayonet; 314. a second positioning key; 32. a test bar; 321. a pin hole; 33. a spacing pin; 34. a fixed rail; 341. a card slot; 342. a first positioning key; 35. fixing the pressing plate; 36. a bolt; 40. and (7) a blank holder.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
The utility model discloses a push rod interference investigation device 30. Referring to fig. 1, fig. 1 shows that the upper surface of the lower die base 20 faces upward, when the drawing die performs a stamping operation, the lower die base 20 is locked on a machine, the air cushion ejector rods 10 on the machine pass through a plurality of die base through holes 21 in the lower die base 20 and jack up the blank holders 40, and then the upper die base performs a downward pressing motion in the vertical direction, so that the blank is drawn and pressed into a shape. If the lower die holder 20 interferes with the air cushion ejector rod 10, the air cushion ejector rod 10 on the machine table is damaged, and maintenance and replacement are needed.
The utility model discloses a push rod interference investigation device 30 plays the simulation effect to air cushion push rod 10, before formal punching press process, cooperates with die holder 20 earlier than air cushion push rod 10 to carry out the test investigation of interference in advance to die holder 20. If the lower die holder 20 with interference is checked out, re-processing and correction are carried out in time; if no interference exists, the lower die holder 20 is locked on the machine, and then stamping work is formally started.
Referring to fig. 2, in contrast to fig. 1, fig. 2 shows the lower die base 20 with its lower surface facing upward. The pin interference checking device 30 includes a test board 31 and a test bar 32. Referring to fig. 2, 4 and 5, the test board 31 is provided with a plurality of ejector rod holes 311, the ejector rod holes 311 are adapted to the die holder through holes 21 of the lower die holder 20, and the center positions of the ejector rod holes 311 and the die holder through holes 21 are correspondingly consistent and have equal intervals. The test rod 32 is of a cylindrical structure, the diameter of the test rod 32 is consistent with that of the air cushion ejector rod 10, meanwhile, the diameter of the test rod 32 is ensured to be 1mm smaller than that of the ejector rod hole 311, and the test rod is movably arranged on each ejector rod hole 311, so that the test rod 32 can be jacked up when interference occurs, and visualization is realized; the length of the test rod 32 is larger than the depth of the die holder through hole 21, so that the test rod 32 can pass through the die holder through hole 21; the test board 31 is attached to the lower surface of the lower mold base 20, and the test bar 32 is inserted into the mold base through hole 21. Whether the interference is generated in the die holder through hole 21 can be judged by observing and comparing the heights of the test rods 32 and whether the test rods are jacked up.
Referring to fig. 5, the test bar 32 is provided with a pin hole 321, and the pin hole 321 may be semicircular or rectangular with an inverted C-angle. The pin hole 321 is inserted with a matching limit pin 33, and the testing rod 32 is movably disposed on the testing board 31 through the matching of the pin hole 321 and the limit pin 33. That is, the stopper pin 33 clamps the testing rod 32 on the testing board 31, so that the testing rod 32 is fixed in the vertical downward direction and movable in the vertical upward direction, and when the bottom end of the testing rod 32 interferes with the lower mold base 20, the testing rod 32 can be jacked up and observed.
As a preferred embodiment, referring to fig. 2, 4 and 5, the lift pin interference checking apparatus 30 further includes a fixed rail 34. The fixed rail 34 is disposed on the lower surface of the lower die holder 20, a slot 341 is disposed on the fixed rail 34, a bayonet 313 adapted to the fixed rail 31 is correspondingly disposed on the test board 31, and the test board 31 is fastened and fixed with the fixed rail 34. Specifically, the number of the fixed rails 34 is two, and the fixed rails are respectively disposed at two ends of the test board 31, so that the test board 31 and the fixed rails 34 form a "U" shaped structure. Design calculation is carried out aiming at specific working conditions, and the distance between the clamping grooves 341 of the two fixed rails 34 is consistent with the distance between the two bayonets 313 on the test board 31, so that the test board 31 can be quickly positioned on the fixed rails 34 through the embodiment and inserted into the die holder through holes 21, the test rod 32 and the die holder through holes 21 do not need to be repeatedly aligned and inserted, the working hours are saved, and the efficiency is improved.
In a preferred embodiment, one end of the fixed rail 34 is further provided with a first positioning key 342, the lower die holder 20 is correspondingly provided with a first key slot 22, and the first positioning key 342 is used for cooperating with the first key slot 22 on the lower die holder 20 to perform quick positioning for the installation of the fixed rail 34. By this embodiment, the fixed rail 34 can be quickly mounted on the lower die base 20.
As a preferred embodiment, the lift pin interference checking apparatus 30 further includes a fixed pressing plate 35. The fixed pressure plate 35 is arranged at the bottom of the fixed rail 34 and is fixedly connected with the fixed rail 34 through a bolt 36; that is, the lower die holder 20 is clamped by the fixing pressure plate 35 and the fixing rail 34, so that the fixing rail 34 is fixed on the lower die holder 20 and is not easy to loosen, and the test board 31 is more accurately mounted. Specifically, the fixing rails 34 on one side are provided with two fixing pressure plates 35, so that the number of the fixing pressure plates 35 is 4 in total, and a further reinforcing effect is achieved.
In a preferred embodiment, the fixed rail 34 is provided with a plurality of engaging grooves 341. Referring to fig. 3, since the number of the die holder through holes 21 is multiple rows, the die holder through holes 21 of each row need to be subjected to an interference test. The fixed rail 34 is provided with a plurality of card slots 341, and the test board 31 can be taken out from one card slot 341 and then mounted on another card slot 341, so that the interference test and the troubleshooting can be performed on the die holder through holes 21 in the other row. With this embodiment, test checks can be performed on the die holder through holes 21 of each row. Meanwhile, the device can also be used for switching moulds with different specifications.
In a preferred embodiment, the test board 31 is provided with a plurality of notches 313, and the notches 313 and the slots 341 are engaged and fixed. Since the lower die holder 20 has a plurality of specifications with different sizes, the test board 31 is correspondingly provided with a plurality of bayonets 313, and the fixed rail 34 can be adjusted to select the proper bayonets 313 to be matched according to different widths of the lower die holder 20. By the embodiment, the die with different sizes can be suitable, and cost is saved.
In a preferred embodiment, the test plate 31 further includes a second positioning key 314. The second positioning key 314 is fixedly connected to the test board 31 through a screw, the lower die holder 20 is correspondingly provided with a second key groove 23, and the second positioning key 314 and the second key groove 23 are matched and fixed, so that the test board 31 and the lower die holder 20 can be quickly positioned. Meanwhile, since the second positioning key 314 is screwed, the second positioning key 314 is detachable, so that the test board 31 can be adapted to the lower mold base 20 with a key slot or a non-key slot.
In a preferred embodiment, the test board 31 further comprises spacer blocks 312. Referring to fig. 5, the spacer block 312 is disposed at the bottom of the testing board 31 and located near the center of the testing board 31, and the spacer block 312 is attached to the lower surface of the lower mold base 20 to support and buffer the testing board 31. Since the size of part of the lower die holder 20 is large, the length of the test board 31 is also long, and if the test board 31 is fixed only by two ends, the middle part is easy to deform. Through setting up lip block 312, can solve the easy problem of warping, improve the life who surveys test panel 31 simultaneously.
In a preferred embodiment, the test bar 32 is provided with a plurality of pin holes 321 with different heights, and the side of each pin hole 321 is engraved with a corresponding stroke value. Because the lower die holder 20 has a plurality of specifications with different sizes, and correspondingly, the depths of the die holder through holes 21 are different, the pin holes 321 with different heights are arranged on the test rod 32, so that the lower die holder 20 can be matched with the lower die holders 20 with different specifications conveniently; the stroke value facilitates to quickly find the pin hole 321 with the corresponding height for installing the test rod 32.
The utility model discloses an installation procedure as follows: the fixed rail 34 is placed at the edge of the lower die base 20 and is positioned through the first positioning key 342; after positioning, the fixed pressure plate 35 is fixedly connected with the fixed rail 34 by using a bolt 36, so that the position of the fixed rail 34 is fixed; mounting a test bar 32 in the test plate 31 with a spacing pin 33; the bayonet 313 of the test board 31 is mounted on the bayonet 341 of the fixed rail 34, so that the test bar 32 is inserted into the die holder through hole 21. Whether the interference is generated in the corresponding die holder through hole 21 can be judged by observing the height of each test rod 32 and whether the test rod is jacked up.
Through the detailed explanation to above-mentioned embodiment, can understand, the utility model discloses play the analog action to air cushion ejector pin 10, before stamping process before air cushion ejector pin 10 with the cooperation of pegging graft of die holder 20, realize carrying out visual test, investigation to interfering in advance, can in time carry out rework correction to unqualified die holder 20, make air cushion ejector pin 10 on the board obtain the protection, avoid frequent maintenance and change, economic cost and human cost have been saved, also make the production progress obtain the assurance simultaneously. Additionally, the utility model discloses a detachable mounting structure, thereby operating personnel can save the space that occupies through dismantling, also portable, accomodate, remove simultaneously, also are favorable to practicing thrift manufacturing cost.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a roof bar interference investigation device which characterized in that includes: a test plate and a test stick; the test board is provided with a plurality of ejector rod holes, and the ejector rod holes are matched with the die holder through holes of the lower die holder; the test rod is of a cylindrical structure and can be movably arranged in each ejector rod hole, and the length of the test rod is greater than the depth of the die holder through hole; the test board is attached to the lower surface of the lower die holder, and the test rod is inserted into the through hole of the die holder.
2. The lift pin interference investigation apparatus of claim 1, wherein the test rod is provided with a pin hole, a limit pin is inserted into the pin hole, and the test rod is movably disposed on the test plate through the cooperation of the pin hole and the limit pin.
3. The lift pin interference investigation device of claim 1, further comprising a fixed rail; the fixed rail is arranged on the lower surface of the lower die holder, a clamping groove is formed in the fixed rail, a bayonet matched with the clamping groove is formed in the test board, and the test board is clamped and fixed with the fixed rail.
4. The ejector rod interference investigation device of claim 3, wherein one end of the fixed rail is further provided with a first positioning key, the lower die holder is correspondingly provided with a first key groove, and the first positioning key is matched and fixed with the first key groove on the lower die holder so as to position the fixed rail.
5. The lift pin interference investigation device of claim 4, further comprising a fixed platen; the fixed pressing plate is arranged at the bottom of the fixed rail and is fixedly connected with the fixed rail through bolts so as to fix the fixed rail on the lower die base.
6. A pin lift interference checking device according to claim 3, wherein a plurality of catching grooves are provided on the fixed rail.
7. A lift pin interference investigation apparatus according to claim 3 wherein a plurality of bayonet sockets are provided on the test plate.
8. The lift pin interference investigation device of claim 1, wherein the test plate further comprises a second positioning key, the second positioning key is fixedly connected with the test plate through a screw, a second key groove is correspondingly formed in the lower die holder, and the second positioning key is fixedly matched with the second key groove to position the test plate.
9. The lift pin interference investigation apparatus of claim 1, wherein the test plate further comprises a spacer block; the supporting cushion block is arranged at the bottom of the test board and is positioned close to the center of the test board; and the supporting cushion block is attached to the lower surface of the lower die base.
10. The lift pin interference investigation device of claim 2, wherein the test bar is provided with a plurality of pin holes having different heights; the side of each pin hole is engraved with a corresponding stroke value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625709.9U CN210154782U (en) | 2019-04-30 | 2019-04-30 | Ejector pin interference checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625709.9U CN210154782U (en) | 2019-04-30 | 2019-04-30 | Ejector pin interference checking device |
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| Publication Number | Publication Date |
|---|---|
| CN210154782U true CN210154782U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625709.9U Active CN210154782U (en) | 2019-04-30 | 2019-04-30 | Ejector pin interference checking device |
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| CN (1) | CN210154782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132558A (en) * | 2019-04-30 | 2019-08-16 | 广州广汽荻原模具冲压有限公司 | A kind of mandril interference examination device |
-
2019
- 2019-04-30 CN CN201920625709.9U patent/CN210154782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132558A (en) * | 2019-04-30 | 2019-08-16 | 广州广汽荻原模具冲压有限公司 | A kind of mandril interference examination device |
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