CN101709363B - Press quenching lathe of thin-wall sleeve workpiece - Google Patents
Press quenching lathe of thin-wall sleeve workpiece Download PDFInfo
- Publication number
- CN101709363B CN101709363B CN 200910244899 CN200910244899A CN101709363B CN 101709363 B CN101709363 B CN 101709363B CN 200910244899 CN200910244899 CN 200910244899 CN 200910244899 A CN200910244899 A CN 200910244899A CN 101709363 B CN101709363 B CN 101709363B
- Authority
- CN
- China
- Prior art keywords
- quenching
- lathe bed
- lathe
- oil
- thin
- 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.)
- Active
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 90
- 230000000171 quenching effect Effects 0.000 title claims abstract description 84
- 238000001816 cooling Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005255 carburizing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 208000010727 head pressing Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a press quenching lathe of a thin-wall sleeve workpiece, belonging to the technical field of lathes. The press quenching lathe of the thin-wall sleeve workpiece is characterized by comprising a lathe bed, an upright post, a press head, a quenching oil temperature control device, a quenching oil supply device, a hydraulic control device and an electric control box, wherein a depoling device and a discharging device is arranged below the lathe bed; a workpiece conveying device is arranged in the lathe bed; the upright post is arranged on the lathe bed, provided with a main oil cylinder, a pulsing oil cylinder, an oil cylinder position control travel switch and internally provided with the press head; the center of the press head is overlapped with that of the working position of the lathe bed; the quenching oil temperature control device is arranged on a side lathe bed, and the right side of a front lathe bed is provided with the quenching oil supply device; the hydraulic control device is independently arranged at one side of the lathe bed; and the electric control box is arranged at the right side of the lathe bed. The invention has the advantages of simple structure, compact assembly, convenient operation, stable property, complete functions, safety, reliability, little environmental pollution, high work efficiency, and the like.
Description
Technical field
The invention belongs to the machine tool technology field, particularly relate to a kind of press quenching lathe of thin-wall sleeve workpiece.
Background technology
At present, ring gear, automobile gearbox inter-sync tooth profile sleeve quenched adopt two kinds of methods: 1. directly carburizing and quenching: the A. part that quenched takes hang in passing-type furnace internal heating, insulation, quench cooled, finishes quenching process; B. taked pile row stacking mode in multipurpose furnace internal heating, insulation, quench cooled by the quenching part, finish quenching process.2. press after the second-heating after the carburizing and quench: adopt in process furnace internal heating insulation back taking-up to be placed on centration axis and the step disk, last compressing cylinder band top die is pushed down workpiece and is pressed into quench cooled in the hardening liquid, pressure head rises, step disk rises the workpiece depoling, finishes quenching process.
Directly the carburizing and quenching part deformation is big, scrap rate is high.Adopting the pressure technology of quenching that ring gear, automobile gearbox inter-sync tooth profile sleeve are quenched is that gear manufactory just is extensive use of in recent years, and part deformation reduces, scrap rate reduces, and makes considerable progress.But because lathe function is single, operating method is less, can not satisfy the production needs, and has technical problem such as working condition difference.
Summary of the invention
The present invention provides a kind of press quenching lathe of thin-wall sleeve workpiece for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide a kind of have simple in structure, compact, easy to operate, the stable performance of assembling, multiple functional, safe and reliable, environmental pollution is little and the press quenching lathe of thin-wall sleeve workpiece of characteristics such as working (machining) efficiency height.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of press quenching lathe of thin-wall sleeve workpiece is characterized in: press quenching lathe comprises lathe bed, column, pressure head, Quenching Oil temperature control device, quenching oil feedway, hydraulic control device, electric control box; Be provided with depoling device, blanking device below the lathe bed, Work transfer device is arranged in the lathe bed; Column is installed on the lathe bed, and master cylinder, impulse clinder, oil cylinder position control travel switch are arranged; Pressure head is housed in the column, and the pressure head center overlaps with center, lathe bed working position; The Quenching Oil temperature control device is on the side lathe bed, and there is the quenching oil feedway on preceding lathe bed right side, and hydraulic control device is placed separately in lathe bed one side, and electric control box is installed in the lathe bed right side.
The present invention can also adopt following technical scheme:
Described press quenching lathe of thin-wall sleeve workpiece is characterized in: lathe bed is provided with the cooling oil sump, pressing mold supporting ring seat is arranged on the lathe bed and join oil jacket; The depoling device has depoling oil cylinder and pull bar, and blanking device is by material oil cylinder, linear guides, driving lever are formed down; Blanking positioning disk and Work transfer device are arranged in the lathe bed, send outside the lathe in order to workpiece that pressure is quenched.
Described press quenching lathe of thin-wall sleeve workpiece is characterized in: column has master cylinder, impulse clinder, master cylinder that position control travel switch and collision block are arranged, and is installed on the column top, and impulse clinder is connected with the piston crown of master cylinder by nut.
Described press quenching lathe of thin-wall sleeve workpiece is characterized in: pressure head is connected with the impulse clinder piston by screw, and pressure head takes the slide-and-guide piece to realize the lifting moving guiding; The pressure mould of quenching is connected with the pressing mold trip bolt with pressure head, and pressure head has telescopic oil deflector ring.
Described press quenching lathe of thin-wall sleeve workpiece is characterized in: Quenching Oil temperature control device comprises: quenching oil heating, cooling, stirring, liquid level warning device add the thermal recovery electrically heated; Water-cooling pattern is adopted in cooling; Fluid stirs the step-down gear impeller mode that adopts; The liquidometer of band oil level warning function is adopted in oil level control.
Described press quenching lathe of thin-wall sleeve workpiece, be characterized in: the flow of quenching oil feedway (5) control quenching oil, the flow of quenching oil filters quenching oil by double-drum filter, and double-drum filter has oil supply pipe to be connected the quantitative fuel feeding control of realization with two two-way electromagnetic valves.
Advantage and positively effect that the present invention has are:
Press quenching lathe of thin-wall sleeve workpiece is owing to adopted brand-new technology scheme of the present invention, compared with prior art, the present invention have simple in structure, compact, easy to operate, the stable performance of assembling, multiple functional, safe and reliable, environmental pollution is little and the working (machining) efficiency advantages of higher.
Description of drawings
Fig. 1 is an appearance of the machine tool structural representation of the present invention;
Fig. 2 is the plan structure synoptic diagram of Fig. 1;
Fig. 3 is the hydraulic control device structural representation;
Fig. 4 is the plan structure synoptic diagram of Fig. 3;
Fig. 5 is a bed piece part-structure synoptic diagram of the present invention;
Fig. 6 is a machine pillar part-structure synoptic diagram of the present invention;
Fig. 7 is a lathe pressure head part-structure synoptic diagram of the present invention;
Fig. 8 is a lathe Quenching Oil temperature control device synoptic diagram of the present invention;
Fig. 9 is a lathe quenching oil feedway synoptic diagram of the present invention.
Among the figure, 1-lathe bed, 101-lathe bed structure spare, 102-driving lever, the 103-pull bar, 104-linear guides, 105-blanking positioning disk, material oil cylinder under the 106-, the 107-Work transfer device, 108-depoling oil cylinder, 109 join oil jacket, and 110-supports ring seat, the 2-column, 201-pillar construction spare, 202-smoke exhaust, the 203-guide plate, 204-master cylinder, 205-plugging pin oil cylinder, the 206-travel switch, 207-security device, 208-impulse clinder, the 3-pressure head, 301-orienting lug, 302-step disk, the 303-spacer ring, 304-pressing plate, 305-sustained ring, the 306-oil blocking cover, 307-trip bolt, 308-oil deflector ring, 4-Quenching Oil temperature control device, 401-step-down gear, 402-water intaking valve, the 403-liquidometer, 404-heating tube, 405-impeller, the 406-heat exchanger, 5-quenching oil feedway, 501-two-way electromagnetic valve, the 502-stopping valve, 503-oil feed pump, 504-change lever, 505-bitubular purolator, 6-hydraulic efficiency system, 7-electrical system.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Consult accompanying drawing 1 to Fig. 9.
Embodiment 1
Press quenching lathe of thin-wall sleeve workpiece, described thin cover circular piece press quenching lathe comprises: lathe bed 1, column 2, pressure head 3, Quenching Oil temperature control device 4, quenching oil feedway 5, hydraulic control device 6, electric control box 7; The lathe bed structure spare 101 of lathe bed part is that the basis of lathe also is the cooling oil sump, front portion above the lathe bed is the working position of lathe, be provided with the depoling device below it, blanking device designs on this position on the lathe bed, rear design has Work transfer device 107 in the lathe bed.Column partly is installed on the lathe bed, and design has master cylinder 204, impulse clinder 208 oil cylinder position control device, and inside is equipped with pressure head 3, and the pressure head center overlaps with center, lathe bed working position.The Quenching Oil temperature control device is arranged on the side lathe bed, preceding lathe bed right side is provided with quenching oil feedway 5, and the execution unit design of hydraulic control device is in the column back, and the hydraulic control device design is placed separately in the lathe bed side, electric control box 7 sides of design on lathe bed are connected with lathe.
As shown in Figure 5, described lathe bed part is made up of lathe bed structure spare, depoling mechanism, cutting agency, transfer mechanism etc.Lathe bed structure spare 101 is that the basis of lathe also is the cooling oil sump, and the front portion above the lathe bed is the working position of lathe, and its Position Design has pressing mold supporting ring seat 110, joins oil jacket 109 etc., on the pressing mold supporting ring seat 110 special-purpose lower supporting disc of pressing the mould of quenching can be installed; Design has depoling mechanism below it, and this mechanism is linked by depoling oil cylinder 108 and pull bar 103, pull bar and the special-purpose sizing core dish of the mould of quenching of pressing, and cylinder action can be realized sizing core dish jack-up and decline depoling; The blanking device design is inboard on lathe bed, by material oil cylinder 106, linear guides 104, driving lever 102 are formed down, when the lathe working routine needs the blanking campaign, drive the line slideway slide block by following material oil cylinder and move along guide rail and drive driving lever 102 and will be dialled from the working position to blanking positioning disk 105 by the quenching part and slide on the Work transfer device 107; Work transfer device 107 is taked the carrier bar type of drive, form by step-down gear, chain wheel pair deceleration, sprocket wheel carrier bar, design has the retaining baffle plate on the carrier bar, prevent the workpiece slippage in course of conveying after the quilt pressure that falls is quenched, workpiece was outside guide groove plate skids off lathe after workpiece was sent lathe after this device will be quenched by pressure.
As shown in Figure 6, described column 2 is installed on the lathe bed, is made up of parts such as pillar construction spare 201, smoke exhaust 202, guide plate 203, master cylinder 204, plugging pin oil cylinder 205, travel switch 206, security device 207, impulse clinders 208.Pillar construction spare 201 makes this lathe mainly support and bear pressure piece, master cylinder 204 is installed in pillar construction spare 201 tops, the downward piston rod head of impulse clinder 208 and master cylinder 204 by nut be connected, the master cylinder position control adopts travel switch 206 and collision block structure design, is installed on the column top; Impulse clinder 208 is connected with pressure head part 3 by screw.Depoling depression bar and impulse clinder link, and realize the depoling of pressing mold sizing core dish; Impulse clinder 208 moves and adopts the realization guiding of sliding in the guide path of guide plate 203 on column is installed, and for the lathe protection safety, the place is equipped with photoelectricity security device 207 at the front of column 201 quenching workpiece inlet dodge gate.
As shown in Figure 7, described pressure head 3 design and installations are connected with impulse clinder 208 pistons by screw in column inside.Form by parts such as orienting lug 301, step disk 302, spacer ring 303, pressing plate 304, sustained ring 305, oil blocking cover 306, pressure ring trip bolt 307, active catch oil rings 308.Ram movement is taked to slide in slide-and-guide piece 301 and the guide path that is installed on the column and is realized motion guide.The pressure mould of quenching is connected with pressure head pressing plate 304 and adopts pressing mold trip bolt 307 to connect, and this partial design has telescopic active catch oil ring 308.
As shown in Figure 8, Quenching Oil temperature control device 4 is arranged on the side lathe bed, and this device comprises: parts such as step-down gear 401, water intaking valve 402, liquidometer 403, heating tube 404, impeller 405, heat exchanger 406.Add the thermal recovery electrically heated; Water-cooling pattern is adopted in cooling, and water coolant flows into the heat exchanger 406 that is placed in the quenching oil through two-way electromagnetic valve, realizes the cooling to quenching oil; Fluid stirs the impeller 405 that adopts step-down gear 401 drives to go deep in the quenching oil and rotates, and realizes the temperature equalisation of quenching oil in the lathe bed; The oil temperature control is controlled the entering water electromagnetic valve 402 of external water coolant and is realized by being positioned at the lateral temperature controller of lathe bed; Oil level control is finished by the liquidometer 403 of band oil level warning function.
As shown in Figure 9, quenching oil fueller 5 is arranged on the right side and is connected with lathe bed, and this device comprises: parts such as two-way electromagnetic valve 501, stopping valve 502, oil feed pump 503, change lever 504, bitubular purolator 505.Oil feed pump 503 is pumped via pipes into double-drum filter, filtration after the control of two two-way electromagnetic valves flows into the lathe bed interior conduit to joining in the oil jacket with quenching oil, realizes timing, quantitative fuel feeding.
Machine tool motion is a power by hydraulic control device 6.Hydraulic power unit by this device provides power, and hydraulic power unit is independently placed, and links by pipeline and the control block hydraulic unit with that is installed in the column rear portion, reaches hydraulic pressure more by the road and carries out oil cylinder and promote moving parts and realize the pressure of the quilt quenching workpiece operation of quenching.
The machine tool motion program is by electric control box 7 controls.Control has dual mode: manual mode, automated cycle mode.Manual mode can comprise by each individual event action of the corresponding button on control panel control lathe: the locking of master cylinder lifting, the lifting of pressurization oil cylinder, the lifting of depoling oil cylinder, lock cylinder and loosen, the opening and closing of quenching chamber door, the opening and closing of quenching oil heating system etc.Lathe is in starting position can forward the automated cycle mode to, automated cycle is moved automatically by the program of establishment in advance, comprise control: the quenching chamber door is closed, sizing core dish rises, pressure head is depressed, quenching oil is opened, the actions such as time-delay, depoling, pressure head rise, blanking, unlatching quenching chamber door of pressurizeing of pulse, and the pressure of finishing the quenching workpiece operation of quenching also transfers out lathe with workpiece automatically.
Claims (6)
1. press quenching lathe of thin-wall sleeve workpiece, it is characterized in that: press quenching lathe comprises lathe bed (1), column (2), pressure head (3), Quenching Oil temperature control device (4), quenching oil feedway (5), hydraulic control device (6), electric control box (7); Lathe bed is provided with depoling device, blanking device below (1), and Work transfer device (107) is arranged in the lathe bed; Column (2) is installed on the lathe bed, and master cylinder (204), impulse clinder (208), oil cylinder position control travel switch (206) are arranged; Pressure head (3) is housed in the column, and the pressure head center overlaps with center, lathe bed working position; Quenching Oil temperature control device (4) is on the side lathe bed, and there is quenching oil feedway (5) on preceding lathe bed right side, and hydraulic control device (6) is placed separately in lathe bed one side, and electric control box (7) is installed in the lathe bed right side.
2. according to the described press quenching lathe of thin-wall sleeve workpiece of claim 1, it is characterized in that: lathe bed (1) is provided with the cooling oil sump, pressing mold supporting ring seat (110) is arranged on the lathe bed and join oil jacket (109); The depoling device has depoling oil cylinder (108) and pull bar (103), and blanking device is by material oil cylinder (106), linear guides (104), driving lever (102) are formed down; Blanking positioning disk (105) and Work transfer device (107) are arranged in the lathe bed, send outside the lathe in order to workpiece that pressure is quenched.
3. according to the described press quenching lathe of thin-wall sleeve workpiece of claim 1, it is characterized in that: column (2) has master cylinder (204), impulse clinder (208), master cylinder that position control travel switch (206) and collision block are arranged, be installed on the column top, impulse clinder (208) is connected by the piston crown of nut with master cylinder (204).
4. according to the described press quenching lathe of thin-wall sleeve workpiece of claim 1, it is characterized in that: pressure head (3) is connected with the impulse clinder piston by screw, and pressure head takes slide-and-guide piece (301) to realize the lifting moving guiding; The pressure mould of quenching is connected with pressing mold trip bolt (307) with pressure head, and pressure head has telescopic oil deflector ring (308).
5. according to the described press quenching lathe of thin-wall sleeve workpiece of claim 1, it is characterized in that: Quenching Oil temperature control device (4) comprising: quenching oil heating, cooling, stirring, liquid level warning device add the thermal recovery electrically heated; Water-cooling pattern is adopted in cooling; Fluid stirs step-down gear (401) impeller (405) mode that adopts; The liquidometer (403) of band oil level warning function is adopted in oil level control.
6. according to the described press quenching lathe of thin-wall sleeve workpiece of claim 1, it is characterized in that: the flow of quenching oil feedway (5) control quenching oil, the flow of quenching oil filters quenching oil by double-drum filter, and double-drum filter has oil supply pipe to be connected the quantitative fuel feeding control of realization with two two-way electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244899 CN101709363B (en) | 2009-12-18 | 2009-12-18 | Press quenching lathe of thin-wall sleeve workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244899 CN101709363B (en) | 2009-12-18 | 2009-12-18 | Press quenching lathe of thin-wall sleeve workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709363A CN101709363A (en) | 2010-05-19 |
| CN101709363B true CN101709363B (en) | 2011-06-15 |
Family
ID=42402169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910244899 Active CN101709363B (en) | 2009-12-18 | 2009-12-18 | Press quenching lathe of thin-wall sleeve workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709363B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236858B (en) * | 2017-07-01 | 2018-11-06 | 长沙理工大学 | A kind of I. C. engine crankshaft quenching coolant liquid treatment box and its application method |
| CN109536684B (en) * | 2018-10-22 | 2020-09-18 | 重庆铁马工业集团有限公司 | Pressure quenching equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228489Y (en) * | 1994-04-21 | 1996-06-05 | 天津市热处理研究所 | Heating quenching heat treatment device for sheet part |
| CN2745936Y (en) * | 2004-07-28 | 2005-12-14 | 张光荣 | Multistation quenching press machine of bearing internal external sleeve |
| CN201136883Y (en) * | 2007-11-23 | 2008-10-22 | 天津第一机床总厂 | Control device for heat treatment equipment of quenching press machine |
-
2009
- 2009-12-18 CN CN 200910244899 patent/CN101709363B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228489Y (en) * | 1994-04-21 | 1996-06-05 | 天津市热处理研究所 | Heating quenching heat treatment device for sheet part |
| CN2745936Y (en) * | 2004-07-28 | 2005-12-14 | 张光荣 | Multistation quenching press machine of bearing internal external sleeve |
| CN201136883Y (en) * | 2007-11-23 | 2008-10-22 | 天津第一机床总厂 | Control device for heat treatment equipment of quenching press machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709363A (en) | 2010-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323902B (en) | Full size ring type parts quenching equipment | |
| CN101709363B (en) | Press quenching lathe of thin-wall sleeve workpiece | |
| CN201560222U (en) | Pressure quenching machine tool for workpieces such as thin-wall covers | |
| CN105014840A (en) | Multi-layer shaper vulcanizer for hand cart tire | |
| CN2782704Y (en) | Fully automatic rotary conveying type annealing furnace | |
| CN101638714B (en) | Numerical control 6-station automatic sizing quenching press | |
| CN204470506U (en) | Frame-type end upsetting hydraulic press | |
| CN101880756A (en) | High-temperature solid smelting furnace heat-treatment quenching machine | |
| CN1322149C (en) | Cut deal high-order steel tapping machines | |
| CN202660919U (en) | Combined hydraulic mud gun and hydraulic opening integrated machine | |
| CN201432086Y (en) | Improved separation cooling bed for continuous casting machine | |
| CN207435498U (en) | A kind of heat treatment dress reclaimer | |
| CN201362812Y (en) | Track jack | |
| CN201447492U (en) | High-temperature solution furnace heat-treatment quenching machine | |
| CN110560624B (en) | Automatic forging production unit of steering rocker shaft | |
| CN101144112A (en) | Quenching device | |
| CN201077853Y (en) | High alloy cell-type solid solution heat treatment stove hardening machine | |
| CN203247181U (en) | Chalcogenide glass element profiling device | |
| CN208772863U (en) | A kind of reduction gear ring assembly tooling | |
| CN208772425U (en) | A kind of three-in-one counter-pressure casting machine of new-energy automobile aluminium alloy | |
| CN207468675U (en) | It is a kind of to have the function of to limit the heat treatment press that shape pressure is quenched | |
| CN214605433U (en) | Hydraulic vulcanizing device with upper die capable of moving back and forth | |
| CN112264605A (en) | Metal casting equipment | |
| CN2461740Y (en) | Bricks, tile former hydraulic mechanism | |
| CN212916971U (en) | Flue gas recovery device for multi-way outlet of cold heading machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200320 Address after: 300385 No.11, Zhuyuan Road, Dasi high tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin Patentee after: Tianjin First Machine Tool Co.,Ltd. Address before: 300180, No. 146 Jintang Road, Hedong District, Tianjin Patentee before: TIANJIN NO.1 MACHINE TOOL WORKS |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 11 Chuyuan Road, Dasi High tech Industrial Park, Xiqing Economic Development Zone, Tianjin, 300385 Patentee after: General Technology Group Tianjin First Machine Tool Co.,Ltd. Country or region after: China Address before: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee before: Tianjin First Machine Tool Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |