CN204505905U - A kind of hydraulic locking apparatus of forcing press - Google Patents
A kind of hydraulic locking apparatus of forcing press Download PDFInfo
- Publication number
- CN204505905U CN204505905U CN201520156698.6U CN201520156698U CN204505905U CN 204505905 U CN204505905 U CN 204505905U CN 201520156698 U CN201520156698 U CN 201520156698U CN 204505905 U CN204505905 U CN 204505905U
- Authority
- CN
- China
- Prior art keywords
- locking nut
- screw rod
- stepped hole
- hole
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 125000003003 spiro group Chemical group 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
Landscapes
- Press Drives And Press Lines (AREA)
Abstract
The utility model discloses a kind of hydraulic locking apparatus of forcing press, it comprises the connecting rod with stepped hole, be installed on the locking nut on stepped hole and the screw rod being arranged in stepped hole, the extended stepped hole of spiro rod length, and its external part forms screw ball head, screw ball head connection sliding block, the top plane of locking nut has certain end-play relative to step, screw rod and locking nut have certain thread pitch when screwing togather, end-play is greater than this thread pitch, connecting rod is provided with the end cover of band radial direction through hole at its bottom face, axial compartment is formed between sealing end cap and locking nut, this axial compartment is connected with radial direction through hole, when radial direction through hole injection liquid force feed also fills axial compartment, the screwing section of locking nut and screw rod produces elastic deformation.Adopt technique scheme to eliminate thread pitch, screw motion precision is high, long service life, and then improves the precision that slide block moves to bottom dead centre operating position, and therefore, stamped workpieces Mass accuracy is high.
Description
[technical field]
The utility model relates to a kind of hydraulic locking apparatus of forcing press, belongs to forcing press locking technical field.
[background technology]
As shown in Figure 1, the locking device of existing forcing press comprises connecting rod 1 ', screw rod 2 ' and swivel nut 3 ', and screw rod 2 ' and swivel nut 3 ' are all positioned at the stepped hole 10 ' of connecting rod 1 '.Wherein, swivel nut 3 ' is fixed in stepped hole 10 ' by pressing plate H ', and together with swivel nut 3 ' and screw rod 2 ' are screwed on by internal and external screw thread, and one end that screw rod 2 ' stretches out stepped hole 10 ' forms screw ball head 21 ', this screw ball head 21 ' connection sliding block 5 '.
Slide block 5 ' the process that pumps is as follows:
When forcing press operation, the motion of known crankshaft connecting rod system, connecting rod 1 ' is made to drive screw ball head 21 ' to move, thus conversion of motion is slide block 5 ' moves up and down at upper dead center position and bottom dead centre operating position, owing to there is thread pitch objectively between screw rod 2 ' and swivel nut 3 ', affect slide block 5 ' and arrive bottom dead centre operating position precision, cause stamped workpieces Mass accuracy low, and reduce the service life of screw rod 2 ' and die of press.
[utility model content]
The deficiency that the technical problems to be solved in the utility model exists for above-mentioned prior art and provide that a kind of screw motion precision is high, the hydraulic locking apparatus of the forcing press of long service life, this device can improve the slide block that screw ball head connects and arrive bottom dead centre operating position with high accuracy.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of hydraulic locking apparatus of forcing press, comprise the connecting rod with stepped hole and the screw rod being arranged in stepped hole, the length of screw rod can stretch out described stepped hole, this end that described screw rod stretches out stepped hole forms screw ball head, screw ball head connection sliding block, its improvement is: also comprise the locking nut be installed on stepped hole, the installation of locking nut makes its top plane have certain end-play relative to step, time together with screw rod is screwed on locking nut, there is certain thread pitch, described end-play is greater than this thread pitch, described connecting rod is installed with the end cover of band radial direction through hole at its bottom face, axial compartment is formed between sealing end cap and locking nut, this axial compartment is connected with radial direction through hole, in radial direction through hole injection liquid force feed and when axial compartment is filled, elastic deformation is produced at the screwing section of action of hydraulic force lower locking nut and screw rod.
Thread pitch time together with above-mentioned screw rod is screwed on locking nut is 0.1mm, and above-mentioned end-play is 0.25mm.
Compared with prior art, the utility model tool has the following advantages and beneficial effect:
After adopting technique scheme, because the screwing section at hydraulics lower locking nut and screw rod produces elastic deformation, so can eliminate the thread pitch existing for screwing section of locking nut and screw rod, screw motion precision is high, long service life, and then improve the precision that reciprocating slide block moves to bottom dead centre operating position, therefore, stamped workpieces Mass accuracy is high.
[accompanying drawing explanation]
Fig. 1 is the locking device structure schematic diagram of existing forcing press;
Fig. 2 is the hydraulic locking apparatus structural representation of the utility model forcing press.
Be described in further detail with regard to the utility model below in conjunction with accompanying drawing.
[detailed description of the invention]
Please refer to shown in Fig. 2, a kind of hydraulic locking apparatus of forcing press, comprise the connecting rod 1 with stepped hole 10 and the screw rod 2 being arranged in stepped hole 10, the length of screw rod 2 can be stretched out outside described stepped hole 10, this end that screw rod 2 stretches out stepped hole 10 forms screw ball head 21, screw ball head 21 connection sliding block 5, its improvement is: also comprise the locking nut 3 be installed on stepped hole 10, the installation of locking nut 3 makes its top plane 31 have certain end-play relative to step 11, time together with screw rod 2 is screwed on locking nut 3, there is certain thread pitch, described end-play is greater than this thread pitch, connecting rod 1 is installed with the end cover 4 of band radial direction through hole 40 at its bottom face, axial compartment K is formed between sealing end cap 4 and locking nut 3, this axial compartment K is connected with radial direction through hole 40, in radial direction through hole 40 injection liquid force feed and when axial compartment K is filled, elastic deformation is produced at action of hydraulic force lower locking nut 3 and the screwing section of screw rod 2.
Thread pitch time together with screw rod 2 is screwed on locking nut 3 is 0.1mm, and end-play is 0.25mm.
Locking nut 3 is installed by pin H; Fixed by bolt S when end cover 4 is installed.
The pressure of hydraulic oil is 250Kg/cm
2.
The course of work of slide block 5 is as follows:
When forcing press operation, bent axle is connected with connecting rod 1, the motion of crankshaft connecting rod system, makes connecting rod 1 drive screw ball head 21 to move, thus conversion of motion is slide block 5 moves up and down at upper dead center position and bottom dead centre operating position.Due to locking nut 3 when mounted, make it push up plane 31 and have certain end-play relative to step 11, when radial direction through hole 40 injection liquid force feed and when axial compartment K is filled, due to the design of end-play, locking nut 3 can be made under action of hydraulic force to have the spatial joint clearance upwards lifted, locking nut 3 produces elastic deformation with the screwing section of screw rod 2, its deformation result is a cancellation the thread pitch existing for screwing section of locking nut 3 and screw rod 2, screw rod 2 kinematic accuracy is improved, and then improve the precision that reciprocating slide block 5 moves to bottom dead centre operating position, therefore, stamped workpieces Mass accuracy is high.
Claims (2)
1. the hydraulic locking apparatus of a forcing press, comprise the connecting rod with stepped hole and the screw rod being arranged in stepped hole, the length of screw rod can stretch out described stepped hole, this end that described screw rod stretches out stepped hole forms screw ball head, screw ball head connection sliding block, it is characterized in that: also comprise the locking nut be installed on stepped hole, the installation of locking nut makes its top plane have certain end-play relative to step, time together with screw rod is screwed on locking nut, there is certain thread pitch, described end-play is greater than this thread pitch, described connecting rod is installed with the end cover of band radial direction through hole at its bottom face, axial compartment is formed between sealing end cap and locking nut, this axial compartment is connected with radial direction through hole, in radial direction through hole injection liquid force feed and when axial compartment is filled, elastic deformation is produced at the screwing section of action of hydraulic force lower locking nut and screw rod.
2. hydraulic locking apparatus according to claim 1, it is characterized in that screw rod be screwed on locking nut together with time thread pitch be 0.1mm, described end-play is 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156698.6U CN204505905U (en) | 2015-03-18 | 2015-03-18 | A kind of hydraulic locking apparatus of forcing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156698.6U CN204505905U (en) | 2015-03-18 | 2015-03-18 | A kind of hydraulic locking apparatus of forcing press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204505905U true CN204505905U (en) | 2015-07-29 |
Family
ID=53703907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520156698.6U Expired - Fee Related CN204505905U (en) | 2015-03-18 | 2015-03-18 | A kind of hydraulic locking apparatus of forcing press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204505905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723601A (en) * | 2015-03-18 | 2015-06-24 | 浙江锻压机床有限公司 | Hydraulic locking device of pressure machine |
| CN110586797A (en) * | 2019-10-21 | 2019-12-20 | 浙江金澳兰机床有限公司 | Electric protection device of numerical control machine tool |
-
2015
- 2015-03-18 CN CN201520156698.6U patent/CN204505905U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723601A (en) * | 2015-03-18 | 2015-06-24 | 浙江锻压机床有限公司 | Hydraulic locking device of pressure machine |
| CN110586797A (en) * | 2019-10-21 | 2019-12-20 | 浙江金澳兰机床有限公司 | Electric protection device of numerical control machine tool |
| CN110586797B (en) * | 2019-10-21 | 2021-02-23 | 浙江金澳兰机床有限公司 | Electric protection device of numerical control machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161012 Address after: 312400, four floor, technical center building, 88 forging Road, Shengzhou Economic Development Zone, Zhejiang, China Patentee after: Zhejiang Zhe Forging Machine Co. Ltd. Address before: 312400 No. 88 forging Road, Shengzhou Economic Development Zone, Zhejiang, China Patentee before: Zhejiang forging machine tool Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20200318 |