CN203292527U - Pressure regulating device of machine tool fixture - Google Patents
Pressure regulating device of machine tool fixture Download PDFInfo
- Publication number
- CN203292527U CN203292527U CN2013203509512U CN201320350951U CN203292527U CN 203292527 U CN203292527 U CN 203292527U CN 2013203509512 U CN2013203509512 U CN 2013203509512U CN 201320350951 U CN201320350951 U CN 201320350951U CN 203292527 U CN203292527 U CN 203292527U
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- CN
- China
- Prior art keywords
- main shaft
- oil
- belt pulley
- regulating device
- oil cylinder
- 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 - Lifetime
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Abstract
The utility model discloses a pressure regulating device of a machine tool fixture and belongs to the field of parts and devices of a machine tool. Only one kind of pressure can be provided by an existing lathe fixture. The pressure regulating device of the machine tool fixture comprises a main shaft, a pull rod, a three-jaw chuck, a belt pulley, an oil cylinder, a flange plate and a hydraulic control system, wherein the pull rod is arranged in an inner cavity of the main shaft in a penetrating mode, the three-jaw chuck is fixedly installed at the front end of the main shaft and is connected with the pull rod, the belt pulley is arranged on the rear portion of the main shaft in a sleeved mode and is fixed through a key, a locking nut which abuts against a leaning shoulder on the inner end face of a through hole of the belt pulley is installed at the rear end of the main shaft, the rear end of the belt pulley is connected with the front end of the oil cylinder through the flange plate, the right end of the pull rod is connected with the front end of a piston rod through a connecting nut, the hydraulic control system comprises an oil pump and a reversing valve, two hydraulic oil circuits are arranged on the oil pump and are led out from the oil pump, the two hydraulic oil circuits are converged into one main hydraulic oil circuit through an oil circuit board, the main hydraulic oil circuit board is communicated with an inner cavity of the oil cylinder, and each hydraulic oil circuit is provided with a reversing valve and a pressure reducing valve. The pressure regulating device of the machine tool fixture has the advantage that different kinds of clamping force, needed during rough machining and finish machining, of the machine tool fixture can be regulated automatically.
Description
Technical field
The utility model belongs to machine tool component device field, and is especially relevant with a kind of jig pressure-regulating device.
Background technology
when being lathe in machining, the turning attachment device is used for the device of holding workpiece, existing turning attachment generally can only provide a kind of chucking power to fixture, and actual lathe is in turning processing time-division roughing and fine finishining, two kinds of chucking powers that add required fixture in man-hour are different, during roughing, required chucking power is larger, and required chucking power is less during fine finishining, if use a kind of chucking power not exist piece-holder firm or with defects such as workpiece crush, affect product quality, some factories are for improving above-mentioned defect, regulate by hand-hydraulic when roughing and fine finishining, although can alignment jig in roughing and accurately machined chucking power, but have a strong impact on working (machining) efficiency, increase production cost.
The utility model content
The purpose of this utility model is intended to overcome existing turning attachment can only provide a kind of defect of pressure, provides a kind of and can automatically regulate the jig pressure-regulating device of turning attachment in roughing different chucking powers during with fine finishining.
for this reason, the utility model is by the following technical solutions: the jig pressure-regulating device, comprise hollow main shaft, pull bar, scroll chuck, belt pulley, oil cylinder and ring flange, pull bar is threaded onto in the inner chamber of described hollow main shaft, described scroll chuck is fixedly installed in the hollow main shaft front end and with described pull bar front end, is connected, described hollow main shaft back segment partly is threaded onto in described belt pulley central through hole, and by a key, radially fix, described hollow main shaft rear end is installed with locking nut, locking nut is resisted against step end face shoulder in the belt pulley central through hole, described belt pulley is carried out axial location, the belt pulley rearward end is connected by ring flange with the leading section of described cylinder block, described pull bar right part is connected by the attaching nut with the cylinder piston rod front end, it is characterized in that, described jig pressure-regulating device also comprises hydraulic control system, hydraulic control system is connected with the cylinder block inner chamber, hydraulic control system comprises oil pump and reversal valve, draw on oil pump and be provided with the two-way hydraulic circuit, and by an oil circuit board, merge into a total hydraulic circuit, total hydraulic circuit is communicated with described cylinder block inner chamber, wherein on the hydraulic circuit of every road, a reversal valve and a pressure-reducing valve are set.
As to technique scheme further supplement and perfect, the utility model also comprises following technical characterictic.
Total hydraulic circuit between described cylinder block inner chamber and oil circuit board is provided with check valve, and when numerically controlled lathe cut off the power supply suddenly, hydraulic oil can not reflux, and workpiece can, owing to not having chucking power to throw away, not avoided potential safety hazard.
when the utility model uses, when carrying out workpiece roughing, before processing, at first passes through by lathe the pressure-reducing valve on two hydraulic circuits of manual adjustments, make it reach setting value, after regulating, in succession switch on by making two reversal valves on hydraulic circuit under the lathe electric control system controls, the hydraulic oil that oil pump provides enters on oil circuit board and converges by two hydraulic circuits respectively, pressure on oil circuit is strengthened, after hydraulic oil enters into the cylinder block inner chamber, the piston rod that promotes oil cylinder moves backward, the pull bar that is connected with piston rod is motion backward also, make pull bar hold the scroll chuck of pull bar front end, make three to grab the clamping of chuck to workpiece, when carrying out fine finishining, in the reversal valve energising that makes under the lathe electric control system controls wherein on an oil circuit, reversal valve outage on another oil circuit, make two oil circuits of drawing from oil pump can only be communicated with a hydraulic circuit and enter into oil circuit board, enter into the cylinder block inner chamber by check valve, the piston rod that promotes oil cylinder moves backward, the pull bar that is connected with piston rod is motion backward also, make pull bar hold the scroll chuck of pull bar front end, make three to grab the clamping of chuck to workpiece, but the chucking power of chucking power at this moment during less than roughing, avoid workpiece fixture crushing workpiece when fine finishining.
Use the utility model can reach following beneficial effect: by hydraulic control system is set, workpiece to be regulated different chucking powers in roughing during with fine finishining automatically, avoided the hidden danger such as the not firm or workpiece of piece-holder crushes, improved the crudy of workpiece; Avoid manual adjustments, the workpiece working (machining) efficiency is provided.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the schematic diagram of the utility model hydraulic control system.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail.
as Fig. 1 ~ shown in Figure 2, the utility model comprises hollow main shaft 6, pull bar 7, scroll chuck 8, belt pulley 4, oil cylinder 1, ring flange 2 and hydraulic control system, pull bar 7 is threaded onto in the inner chamber of described hollow main shaft 6, scroll chuck 8 is fixedly installed in hollow main shaft 6 front ends and with described pull bar 7 front ends, is connected, hollow main shaft 6 back segments partly are threaded onto in belt pulley 4 central through holes, and by a key 5, radially fix, hollow main shaft 6 rear ends are installed with locking nut 3, locking nut 3 is resisted against step end face shoulder in belt pulley 4 central through holes, described belt pulley 4 is carried out axial location, belt pulley 4 rearward end are connected by ring flange 2 with the leading section of oil cylinder 1 cylinder body, pull bar 7 right parts are connected by the attaching nut with oil cylinder 1 piston rod front end, hydraulic control system is connected with oil cylinder 1 inner chamber of cylinder block, hydraulic control system comprises oil pump 13 and reversal valve 11, draw on oil pump 13 and be provided with two hydraulic circuits, and by an oil circuit board 10, merge into a total hydraulic circuit, total hydraulic circuit is communicated with oil cylinder 1 inner chamber of cylinder block, wherein on the hydraulic circuit of every road, a reversal valve 11 and a pressure-reducing valve 12 are set, described total hydraulic circuit is provided with check valve 9, when numerically controlled lathe cuts off the power supply suddenly, hydraulic oil can not reflux, workpiece can be owing to not having chucking power to throw away, avoid potential safety hazard.
when the utility model uses, when carrying out workpiece roughing, before processing, at first passes through by lathe the pressure-reducing valve 12 on two hydraulic circuits of manual adjustments, make it reach setting value, after regulating, in succession switch on by making two reversal valves 11 on hydraulic circuit under the lathe electric control system controls, the hydraulic oil that oil pump 13 provides enters on oil circuit board 10 and converges by two hydraulic circuits respectively, pressure on oil circuit is strengthened, after hydraulic oil enters into oil cylinder 1 inner chamber of cylinder block, the piston rod that promotes oil cylinder 1 moves backward, the pull bar 7 that is connected with piston rod is motion backward also, make pull bar 7 hold the scroll chuck 8 of pull bar 7 front ends, make the clamping of 8 pairs of workpiece of scroll chuck, when carrying out fine finishining, in reversal valve 11 energisings that make under the lathe electric control system controls wherein on an oil circuit, reversal valve 11 outages on another oil circuit, make two oil circuits of drawing from oil pump 13 can only be communicated with a hydraulic circuit and enter into oil circuit board 10, enter into oil cylinder 1 inner chamber of cylinder block by check valve 9, the piston rod that promotes oil cylinder 1 moves backward, the pull bar 7 that is connected with piston rod is motion backward also, make pull bar 7 hold the scroll chuck 8 of pull bar 7 front ends, make the clamping of 8 pairs of workpiece of scroll chuck, but the chucking power of chucking power at this moment during less than roughing, avoid workpiece fixture crushing workpiece when fine finishining.
Claims (2)
1. jig pressure-regulating device, comprise hollow main shaft (6), pull bar (7), scroll chuck (8), belt pulley (4), oil cylinder (1) and ring flange (2), pull bar (7) is threaded onto in the inner chamber of described hollow main shaft (6), described scroll chuck (8) is fixedly installed in hollow main shaft (6) front end and with pull bar (7) front end, is connected, described hollow main shaft (6) back segment partly is threaded onto in belt pulley (4) central through hole, and by a key (5), radially fix, hollow main shaft (6) rear end is installed with locking nut (3), locking nut (3) is resisted against step end face shoulder in belt pulley (4) central through hole, belt pulley (4) rearward end is connected by ring flange (2) with the leading section of oil cylinder (1) cylinder body, pull bar (7) right part is connected by the attaching nut with oil cylinder (1) piston rod front end, it is characterized in that: described jig pressure-regulating device also comprises hydraulic control system, hydraulic control system is connected with oil cylinder (1) inner chamber of cylinder block, hydraulic control system comprises oil pump (13) and reversal valve (11), draw and be provided with the two-way hydraulic circuit on oil pump (13), and by an oil circuit board (10), merge into a total hydraulic circuit, total hydraulic circuit is communicated with described oil cylinder (1) inner chamber of cylinder block, wherein on the hydraulic circuit of every road, a reversal valve (11) and a pressure-reducing valve (12) are set.
2. jig pressure-regulating device according to claim 1, it is characterized in that: the total hydraulic circuit between described oil cylinder (1) inner chamber of cylinder block and oil circuit board (10) is provided with check valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203509512U CN203292527U (en) | 2013-06-17 | 2013-06-17 | Pressure regulating device of machine tool fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203509512U CN203292527U (en) | 2013-06-17 | 2013-06-17 | Pressure regulating device of machine tool fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203292527U true CN203292527U (en) | 2013-11-20 |
Family
ID=49568567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203509512U Expired - Lifetime CN203292527U (en) | 2013-06-17 | 2013-06-17 | Pressure regulating device of machine tool fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203292527U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108000195A (en) * | 2017-12-30 | 2018-05-08 | 无锡烨隆精密机械有限公司 | A kind of volute positioning tool and its localization method |
| CN108000184A (en) * | 2017-12-30 | 2018-05-08 | 无锡烨隆精密机械有限公司 | A kind of oil channel structures of volute hydraulic pressure positioning tool |
| TWI695937B (en) * | 2019-07-22 | 2020-06-11 | 大東原油壓企業有限公司 | The hydraulic system of the tool machine program the segmentless pressure control device and its control method |
| CN115255886A (en) * | 2022-07-29 | 2022-11-01 | 中国第一汽车股份有限公司 | Cylindrical pin pulling device and cylindrical pin pulling method |
-
2013
- 2013-06-17 CN CN2013203509512U patent/CN203292527U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108000195A (en) * | 2017-12-30 | 2018-05-08 | 无锡烨隆精密机械有限公司 | A kind of volute positioning tool and its localization method |
| CN108000184A (en) * | 2017-12-30 | 2018-05-08 | 无锡烨隆精密机械有限公司 | A kind of oil channel structures of volute hydraulic pressure positioning tool |
| CN108000195B (en) * | 2017-12-30 | 2024-04-05 | 无锡烨隆精密机械股份有限公司 | Volute positioning tool and positioning method thereof |
| TWI695937B (en) * | 2019-07-22 | 2020-06-11 | 大東原油壓企業有限公司 | The hydraulic system of the tool machine program the segmentless pressure control device and its control method |
| CN115255886A (en) * | 2022-07-29 | 2022-11-01 | 中国第一汽车股份有限公司 | Cylindrical pin pulling device and cylindrical pin pulling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 4, 2023, the expiration and termination of the 39 volume 2701 patent Number: 27-01 Volume: 39 |