CN205270962U - Full -automatic multiaspect milling machine and hydraulic system thereof - Google Patents
Full -automatic multiaspect milling machine and hydraulic system thereof Download PDFInfo
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- CN205270962U CN205270962U CN201521132256.4U CN201521132256U CN205270962U CN 205270962 U CN205270962 U CN 205270962U CN 201521132256 U CN201521132256 U CN 201521132256U CN 205270962 U CN205270962 U CN 205270962U
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Abstract
The utility model discloses a full -automatic multiaspect milling machine and hydraulic system thereof, the milling machine includes the unit head of organism, workstation, anchor clamps and at least two sets of clamping tool bits, the workstation slides and sets up on the organism to set up main hydraulic cylinder along the slip direction between workstation and organism, anchor clamps are fixed on the workstation, adopt the cooperation of closing cylinder and lever mechanism, realize the self -holding of work piece, the unit head is fixed to be set up on the organism of workstation both sides, and the assembly tool bit a plurality of parallels or vertically face or groove carries out simultaneous processing on to the work piece of clamping on the workstation. The utility model discloses a workstation removes and all to adopt the hydraulic cylinder drive with the work piece clamping, and hydraulic cylinder operates steadily, and the noise hangs down, and the reliable operation can realize the full automatic processing of milling machine having improved machining efficiency to workman intensity of labour has been reduced.
Description
Technical field
The utility model belongs to machining tool technical field, is specifically related to a kind of full-automatic multiaspect milling machine and hydraulic efficiency system thereof.
Background technology
At present big batch is processed with to the part of multiple parallel or vertical surface, groove, main employing double sides milling machine is processed, but double sides milling machine is in quick feed with when retreating fast, the movement of worktable is all adopt lead screw transmission, manually form carries out, and double sides milling machine driving parts easily damages, less stable, keep in repair more difficult, and two parallel or vertical surface, grooves can only be processed every time. Need before processing manually workpiece to be carried out clamping, it does not have automatic clamping device, working (machining) efficiency is low, and each operator generally can only operate a machine tool, can not automatically process.
Practical novel content
The technical problem that the utility model solves is: need a large amount of manual operations to cause working (machining) efficiency low for existing double sides milling machine, and the defect of transmission apparatus instability, a kind of full-automatic multiaspect milling machine and hydraulic efficiency system thereof are provided, adopt hydrostatic transmission to replace traditional armstrong's patent transmission.
The utility model adopts following technical scheme to realize:
A kind of full-automatic multiaspect milling machine, comprises the unit head of body, worktable, fixture and at least two assembling folder cutter heads; Described worktable is slidably arranged on body, and arranges main hydraulic cylinder along slip direction between worktable and body, and one end of described main hydraulic cylinder is fixed on body, and another telescopic end is fixed on worktable bottom; Described fixture is fixing on the table, adopting compressed oil cylinder and leverage to coordinate, described compressed oil cylinder is fixing on the table, and one end of leverage is connected with the telescopic end of compressed oil cylinder, the other end then acts on the workpiece being positioned over fixture, it is achieved the automatic clamping of workpiece; Described unit head is fixedly installed on the body of worktable both sides, and the clamping multiple parallel or vertical face of workpiece on the table or groove are processed by assembling cutter head simultaneously.
Further, described unit head adopts double-shaft power head, has two transmission shafts, and a unit head can assemble two cutter heads simultaneously.
Further, described body comprises backing plate, backing plate bearing, unit head bearing and worktable bearing, described backing plate is fixedly installed on backing plate bearing, described worktable bearing is fixed on the mid-way of backing plate, for assembling unit head, described unit head bearing is then separately fixed on the backing plate of worktable bearing both sides, for assembling the power system of unit head and unit head.
Further, described worktable is arranged on worktable bearing by secured adjusted plate, and described unit head bearing is provided with the travel switch of induction worktable travel position near the side of worktable, and described worktable is provided with the some grades of blocks for travel switch induction; Described travel switch is connected with the hydraulic control component signal of control main hydraulic cylinder action.
Further, the worktable bearing of described worktable both sides is provided with protective shield.
The utility model also comprises the hydraulic efficiency system of a kind of above-mentioned full-automatic multiaspect milling machine, comprises speed control loop and loop of voltage regulation; Described speed control loop is connected with main hydraulic cylinder, comprise main reversing valve, speed-regulating valve and timing reversal valve, wherein two working oil mouths of main reversing valve connect two oily mouths of main hydraulic cylinder respectively, wherein being arranged in series speed-regulating valve and timing reversal valve on an oil circuit, the oil inlet and outlet of described main reversing valve connects pumping element and fuel tank respectively; Described loop of voltage regulation is connected with compressed oil cylinder, comprise pressure maintaining valve and clamping reversing valve, two working oil mouths of described clamping reversing valve connect two oily mouths of compressed oil cylinder respectively, and the oil-in of clamping reversing valve is connected to pumping element by pressure maintaining valve, and oil outlet is then connected to fuel tank.
Further, described speed control loop and loop of voltage regulation are connected in parallel on the working connection of same pumping element, and on the working connection of pumping element surplus valve in parallel.
In the utility model, described main reversing valve, timing reversal valve and clamping reversing valve all adopt solenoid operated directional valve.
Further, described speed control loop and loop of voltage regulation adopt modularization structure assembly to arrange.
The utility model adopts technique scheme to have following useful effect:
1) hydraulic speed regulation loop is adopted to control, it is possible to feed and fast retrogressing fast automatically;
2) adopting hydraulic compression oil cylinder, by coordinating leverage can realize the automated exchanged cutter of workpiece, in conjunction with stabilizing hydraulic pressure loop, clamping workpiece is reliable and stable;
3) adopting many group double-shaft power heads, workpiece can carry out the processing of multiple parallel or vertical surface or groove, it is to increase working (machining) efficiency simultaneously, working (machining) efficiency improves more than 50% than common double sides milling machine;
4) driving parts of worktable and clamping all adopts hydro-cylinder, it may also be useful to being difficult in process damage, stability is fine, can ensure not occur any abrasion in the use procedure of 2 years.
5) full-automatic machine tool processing, simple to operate, labour intensity is low, and after artificial place work piece, so that it may automatically process, everyone can operate 2-3 platform equipment simultaneously;
6) lathe adopts hydraulic efficiency system action, and processing is more steady, and surface quality of workpieces is better than the like product that prior art is processed;
7), in hydraulic work system process, the double sides milling machine that processing noise ratio is traditional is little.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the front view of the full-automatic multiaspect milling machine in embodiment.
Fig. 2 is the side-view of the full-automatic multiaspect milling machine in embodiment.
Fig. 3 is the fixing schematic diagram of piston rod of the main hydraulic cylinder in embodiment.
Fig. 4 is the vertical view of the full-automatic multiaspect milling machine in embodiment.
Fig. 5 is the hydraulic schematic of the full-automatic multiaspect milling machine in embodiment.
Fig. 6 is the pilot circuit figure of the full-automatic multiaspect milling machine in embodiment.
Number in the figure: 1, pulley belt, 2, motor, 3, adjustable double-shaft power head, 4, fixture, 5, workpiece, 6, worktable, 7, unit head bearing, 8, backing plate, 9, bearing, 10, travel switch, 11, shelves block, 12, secured adjusted plate, 13, worktable bearing, 14, main hydraulic cylinder, 15, protective shield, 16, compressed oil cylinder, 17, set nut, 18, oil pipe, 19, stationary bearing, 20, hydraulic control module, 21, fuel tank, 22, speed-regulating valve, 23, timing reversal valve, 24, surplus valve, 25, strainer, 26, oil pump, 27, main reversing valve, 28, pressure maintaining valve, 29, clamping reversing valve.
Embodiment
Embodiment
See Fig. 1, Fig. 2 and Fig. 4, the full-automatic multiaspect milling machine in diagram, comprises body, worktable 6, fixture 4 and two groups of adjustable double-shaft power 3; Worktable 6 is slidably arranged on body, and arranges main hydraulic cylinder 14 along slip direction between worktable 6 and body, and one end of main hydraulic cylinder 14 is fixed on body, and another telescopic end is fixed on worktable 6 bottom; Fixture 4 is fixedly installed on the table, adopting compressed oil cylinder 16 and a leverage to coordinate, compressed oil cylinder 16 is fixing on the table, and one end of leverage is connected with the telescopic end of compressed oil cylinder, the other end then acts on the workpiece 5 being positioned over fixture 4, it is achieved the automatic clamping of workpiece; In the present embodiment, the unit head of clamping cutter head adopts adjustable double-shaft power head, there are two transmission shafts, a unit head can assemble two cutter heads simultaneously, and spacing and the amount of feed between two unit heads are all adjustable, unit head is fixed on the body of worktable both sides, and clamping workpiece two sides on the table are processed by assembling cutter head simultaneously. The quantity of unit head and the position of setting all can carry out corresponding adjustment according to the needs of work pieces process.
Carry out supplementing explanation to the concrete structure of the full-automatic multiaspect milling machine of the present embodiment below.
Body comprises backing plate 8, backing plate bearing 9, unit head bearing 7 and worktable bearing 13, backing plate 8 is fixedly installed on backing plate bearing 9, worktable bearing 13 is fixed on the mid-way of backing plate 8, for rigger's station, on unit head bearing 7 backing plates being separately fixed at worktable bearing 13 both sides, for assembling the power system of adjustable double-shaft power head and unit head.
Workpiece 5 is arranged on worktable 6 by fixture 4, and fixture 4 is by compressed oil cylinder 16 workpiece pressing 5; Worktable 6 is arranged on worktable bearing 13 by secured adjusted plate 12, and protective shield 15 is arranged on worktable 6, and worktable bearing 13 is fixed on backing plate 8, and backing plate 8 utilizes backing plate bearing 9 to support.
Adjustable double-shaft power 3 is arranged on unit head bearing 7, and unit head bearing 7 is fixed on backing plate 8. Motor 2 is arranged on unit head bearing 13 li, by pulley belt 1, adjustable double-shaft power 3 is rotated. The rotating speed of unit head 3 regulates by changing the belt pulley of unit head 3, the elasticity of pulley belt 1, is regulated by the position of mobile motor 2 and replacing pulley belt 1.
Main hydraulic cylinder 14 cylinder body part is fixed on bottom worktable 6, and piston rod end is by screw thread and stationary bearing 19 wringing fit, and is fixed on worktable bearing 13, adopts set nut 17 to lock, as shown in Figure 3. Main hydraulic cylinder 14, compressed oil cylinder 16 are connected with fuel tank 21 with hydraulic control module 20 by oil pipe 18, and hydraulic control module 20 be control the integrated module of the hydraulic efficiency system of main hydraulic cylinder 14 and compressed oil cylinder 16 connection. Unit head bearing 7 is provided with the travel switch 10 of induction worktable travel position near the side of worktable, worktable 6 is provided with the some grades of blocks 11 for travel switch induction, as shown in the present embodiment accompanying drawing, travel switch 10 is arranged on the face, right side of left side power head bearing 7, and shelves block 11 correspondence is arranged on the face, left side of worktable 6. Travel switch 10 is connected with the hydraulic control component signal of control main hydraulic cylinder and compressed oil cylinder action, for the stroke signal of collecting work platform is processed in milling machine automatization.
The full-automatic multiaspect milling machine hydraulic efficiency system of the present embodiment comprises speed control loop and loop of voltage regulation; Wherein speed control loop is connected with main hydraulic cylinder 14, comprise main reversing valve 27, speed-regulating valve 22 and timing reversal valve 23, wherein two working oil mouths of main reversing valve 27 connect two oily mouths of main hydraulic cylinder 14 respectively, wherein being arranged in series speed-regulating valve 22 and timing reversal valve 23 on an oil circuit, the oil inlet and outlet of main reversing valve 27 connects pumping element and fuel tank respectively; Loop of voltage regulation is connected with compressed oil cylinder 16, comprise pressure maintaining valve 28 and clamping reversing valve 29, two working oil mouths of clamping reversing valve 29 connect two oily mouths of compressed oil cylinder 16 respectively, and the oil-in of clamping reversing valve 29 is connected to pumping element by pressure maintaining valve 28, and oil outlet is then connected to fuel tank 21.
In conjunction with see Fig. 5, the hydraulic efficiency system of the full-automatic multiaspect milling machine of the present embodiment being described further.
In the present embodiment, speed control loop and loop of voltage regulation are all connected in the oil outlet of same oil pump 26 in parallel, fuel tank 21 is provided with strainer 25, strainer 25 is connected with oil pump 26 by oil pipe, and oil pump 26 the other end is connected with the oil inlet end of a surplus valve 24, hole, main reversing valve 27 lower-left, pressure maintaining valve 28 oil inlet end respectively.
Surplus valve 24 oil outlet end is connected with fuel tank 21 by oil pipe, and surplus valve 24 mainly regulates the pressure of whole hydraulic efficiency system.
Hole, main reversing valve 27 bottom right is connected with fuel tank 21 by oil pipe 18; Main reversing valve 27 left upper port is connected with main hydraulic cylinder 14 ante-chamber by oil pipe 18; The 23 times stomidiums in main reversing valve 27 upper right hole and timing reversal valve are connected, timing reversal valve 23 left upper port is connected with speed-regulating valve 22 outlet-port, timing reversal valve 23 upper right hole is connected with the rear chamber of speed-regulating valve 22 oil supply hole and main hydraulic cylinder 14, speed-regulating valve 22 mainly regulates main hydraulic cylinder 14 travelling speed, thus regulates and add worktable rate of advance in man-hour.
Pressure maintaining valve 28 oil outlet end is connected with hole, clamping reversing valve 29 lower-left, pressure maintaining valve 28 principal security compressed oil cylinder 16 pressure-stabilisation, hole, clamping reversing valve 29 bottom right is connected with fuel tank 21 by oil pipe 18, clamping reversing valve 29 left upper port is connected by oil pipe 18 and compressed oil cylinder 16 times ends, and clamping reversing valve 29 upper right hole is connected with compressed oil cylinder 16 upper end by oil pipe 18.
In the present embodiment, main reversing valve adopts three-position four-way electromagnetic directional valve, timing reversal valve to adopt two position, three-way electromagnetic change valve, clamping reversing valve to adopt two-position four-way solenoid operated directional valve.
The principle of work of the hydraulic efficiency system of the present embodiment illustrates as follows.
The first step, D4 are energized:
Clamping reversing valve 29 is on the right, and oil is entered, workpiece pressing in compressed oil cylinder 16 times chambeies;
2nd step, D1 are energized, D3 energising:
Main reversing valve 27 on the left, timing reversal valve 23 is on the right, and main hydraulic cylinder 14 ante-chamber enters oil, and speed-regulating valve 22 does not work, and worktable advances fast;
3rd step, D3 power-off:
Timing reversal valve 23 on the left, main hydraulic cylinder 14 ante-chamber enters oil, and speed-regulating valve 22 works, and worktable advances at a slow speed, processes;
4th step, D2 are energized, D1 power-off:
Main reversing valve 27 is on the right, and after main hydraulic cylinder 14, oil is entered in chamber, and speed-regulating valve 22 does not work, and worktable retreats fast;
5th step, D4 power-off:
Clamping reversing valve 29 on the left, on compressed oil cylinder 16, oil is entered in chamber, unclamps workpiece;
6th step, D2 power-off, D1 power-off:
Main reversing valve 27 is in middle oil pump off-load, and worktable stops.
Adding man-hour, first oil pump is started, after placing workpiece, can directly start milling machine automatically to process, the process of processing is according to carrying out as follows: clamping work pieces �� unit head work, worktable move quickly into processing shelves block position �� worktable and runs by process velocity, processing work �� worktable runs to right shelves block position, unit head stopping work, worktable retreats fast �� and worktable is back to unclamping a grade block position, unclamping workpiece �� worktable to continue back to left shelves block position, worktable is out of service.
Below in conjunction with accompanying drawing 5 and accompanying drawing 6, the electrical autocontrol principle of work of the present embodiment is described.
The circuit structure of the present embodiment as shown in Figure 6,
First positive source meets insurance FR1, emergency stop switch SB1, limitation travel switch SQ1 (normally closed), then connects 4 shunt circuits.
Shunt circuit one: first meet oil pump halt switch SB2, then electrical equipment KM1 (normally opened contact) and button SB3 is succeeded in parallel connection, finally succeeds electrical equipment KM1.
Shunt circuit two: first and connect button SB4 and relay K M2 (normally opened contact), then connect 2 shunt circuits. Circuit 1, first meeting travel switch SQ2 (normally closed), then electrical equipment KM2 and electro-magnet DM4 is succeeded in parallel connection; Circuit 2, first succeed electrical equipment KM3 (normally closed contact), then meet timing relay TK1.
Shunt circuit three: first meet unit head halt switch SB5, then and connect timing relay TK1 (normally opened contact) and relay K M3 (normally opened contact), connect travel switch SQ3 (compound) normal-closed end again, finally connect 3 shunt circuits. Circuit 1, succeed electrical equipment KM3; Circuit 2, meet electro-magnet DM1; Circuit 3, first meet travel switch SQ4 (normally closed), then meet electro-magnet DM3.
Shunt circuit four: first electrical equipment KM4 (normally opened contact) and travel switch SQ3 (compound) Chang Kaiduan is succeeded in parallel connection, then meets travel switch SQ5 (normally closed), last and connect electro-magnet DM2 and relay K M4.
Electro-magnet DM1 is the D1 in clamping reversing valve 29, DM2 is the D2 in clamping reversing valve 29; Electro-magnet DM3 is the D3 in timing reversal valve 23; Electro-magnet DM4 is the D4 in clamping reversing valve 29.
The full-automatic multiaspect milling machine automatic operation process of the present embodiment is as follows,
The first step, press SB3:
KM1 closes, operation of oil pump.
2nd step, press SB4:
1. KM2 closes, and DM4 (D4) is energized, compressed oil cylinder, and oil is entered, workpiece pressing in lower chamber;
2. energization delay relay (often opening) TK1 (2S) energising.
After 3rd step, 2S, TK1 closes:
1. KM3 closes, and unit head works;
2. DM1 (D1) energising; DM3 (D3) is energized, and master cylinder ante-chamber enters oil, and speed-regulating valve does not work, and worktable advances fast.
4th step, processing shelves block are pressed onto travel switch SQ4 (normally closed):
DM3 (D3) power-off, master cylinder ante-chamber enters oil, and speed-regulating valve works, and worktable advances at a slow speed, processes.
5th step, travel switch SQ3 (compound) encounter right shelves block:
1. KM3 disconnects, unit head stopping work;
2. KM4 closes;
3. DM1 (D1) power-off; DM2 (D2) is energized, and after master cylinder, oil is entered in chamber, and speed-regulating valve does not work, and worktable retreats fast.
6th step, travel switch SQ2 (normally closed) encounter and unclamp a grade block:
DM4 (D4) power-off, compressed oil cylinder, oil is entered in upper chamber, unclamps workpiece.
7th step, travel switch SQ5 (normally closed) encounter left shelves block:
DM2 (D2) power-off, oil pump off-load, worktable stops.
Note:
Disconnecting when limitation travel switch SQ1 (normally closed) encounters left and right postioning abutment, total circuit disconnects; SB1 to be emergency stop switch, SB2 be oil pump halt switch, SB5 are unit head halt switch, FR1 is insurance, and the time delay time that energization delay relay (often opens) TK1 can regulate as required; In the present embodiment, the shelves block of travel switch detection comprises left shelves block, right shelves block, left postioning abutment, right postioning abutment, unclamps grade block and processing shelves block, its concrete control process is as above, travel switch in actual applications and the setting of shelves block, can carry out the adjustment of quantity and position according to different processing requests.
The present embodiment should note when mounted following some:
1) fix with wall screw when installing, by good for worktable level school. Fixture is installed on the table, and the good level in school.
2) before processing, fixture is installed on the table, the good level in school, and ensure that work pieces process face is vertical with dynamic head main spindle; Distance according to the good adjustable double-shaft power head diaxon of work pieces process position adjustments, and each axle extrusion, ensure that each machined surface has suitable process redundancy, and lock; Regulating the position of each shelves block, guarantee can conveniently be processed, and can raise the efficiency again;
3) regulated the pressure of whole hydraulic efficiency system by surplus valve, regulated the pressure of compressed oil cylinder by pressure maintaining valve, regulated the process velocity of lathe by speed-regulating valve.
These are only that the concrete case study on implementation of the utility model illustrates, rights protection scope of the present utility model can not be limited with this. All equivalences done according to the utility model application right claim and description change and amendment, all in the scope of the utility model protection.
Claims (9)
1. a full-automatic multiaspect milling machine, it is characterised in that: the unit head comprising body, worktable, fixture and at least two assembling folder cutter heads;
Described worktable is slidably arranged on body, and arranges main hydraulic cylinder along slip direction between worktable and body, and one end of described main hydraulic cylinder is fixed on body, and another telescopic end is fixed on worktable bottom;
Described fixture is fixing on the table, adopting compressed oil cylinder and leverage to coordinate, described compressed oil cylinder is fixing on the table, and one end of leverage is connected with the telescopic end of compressed oil cylinder, the other end then acts on the workpiece being positioned over fixture, it is achieved the automatic clamping of workpiece;
Described unit head is fixedly installed on the body of worktable both sides, and the clamping multiple parallel or vertical face of workpiece on the table or groove are processed by assembling cutter head simultaneously.
2. the full-automatic multiaspect milling machine of one according to claim 1, described unit head adopts double-shaft power head, has two transmission shafts, and a unit head can assemble two cutter heads simultaneously.
3. the full-automatic multiaspect milling machine of one according to claim 1, described body comprises backing plate, backing plate bearing, unit head bearing and worktable bearing, described backing plate is fixedly installed on backing plate bearing, described worktable bearing is fixed on the mid-way of backing plate, for assembling unit head, described unit head bearing is then separately fixed on the backing plate of worktable bearing both sides, for assembling the power system of unit head and unit head.
4. the full-automatic multiaspect milling machine of one according to claim 3, described worktable is arranged on worktable bearing by secured adjusted plate, described unit head bearing is provided with the travel switch of induction worktable travel position near the side of worktable, and described worktable is provided with the some grades of blocks for travel switch induction; Described travel switch is connected with the hydraulic control component signal of control main hydraulic cylinder action.
5. the full-automatic multiaspect milling machine of one according to claim 3, the worktable bearing of described worktable both sides is provided with protective shield.
6. the hydraulic efficiency system of a full-automatic multiaspect milling machine according to claim 1, it is characterised in that: comprise speed control loop and loop of voltage regulation;
Described speed control loop is connected with main hydraulic cylinder, comprise main reversing valve, speed-regulating valve and timing reversal valve, wherein two working oil mouths of main reversing valve connect two oily mouths of main hydraulic cylinder respectively, wherein being arranged in series speed-regulating valve and timing reversal valve on an oil circuit, the oil inlet and outlet of described main reversing valve connects pumping element and fuel tank respectively;
Described loop of voltage regulation is connected with compressed oil cylinder, comprise pressure maintaining valve and clamping reversing valve, two working oil mouths of described clamping reversing valve connect two oily mouths of compressed oil cylinder respectively, and the oil-in of clamping reversing valve is connected to pumping element by pressure maintaining valve, and oil outlet is then connected to fuel tank.
7. the hydraulic efficiency system of a kind of full-automatic multiaspect milling machine according to claim 6, described speed control loop and loop of voltage regulation are connected in parallel on the working connection of same pumping element, and on the working connection of pumping element surplus valve in parallel.
8. the hydraulic efficiency system of a kind of full-automatic multiaspect milling machine according to claim 6 or 7, described main reversing valve, timing reversal valve and clamping reversing valve all adopt solenoid operated directional valve.
9. the hydraulic efficiency system of a kind of full-automatic multiaspect milling machine according to claim 6, described speed control loop and loop of voltage regulation adopt modularization structure assembly to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132256.4U CN205270962U (en) | 2015-12-31 | 2015-12-31 | Full -automatic multiaspect milling machine and hydraulic system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132256.4U CN205270962U (en) | 2015-12-31 | 2015-12-31 | Full -automatic multiaspect milling machine and hydraulic system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205270962U true CN205270962U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132256.4U Expired - Fee Related CN205270962U (en) | 2015-12-31 | 2015-12-31 | Full -automatic multiaspect milling machine and hydraulic system thereof |
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| CN (1) | CN205270962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747514A (en) * | 2018-08-03 | 2018-11-06 | 芜湖勤惠科技有限公司 | A kind of fluid pressure type milling of rear torsion beam bores, is tapping into set processing unit (plant) |
-
2015
- 2015-12-31 CN CN201521132256.4U patent/CN205270962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747514A (en) * | 2018-08-03 | 2018-11-06 | 芜湖勤惠科技有限公司 | A kind of fluid pressure type milling of rear torsion beam bores, is tapping into set processing unit (plant) |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |