CN203484960U - Transmission device for cutting welding seam - Google Patents
Transmission device for cutting welding seam Download PDFInfo
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- CN203484960U CN203484960U CN201320520655.2U CN201320520655U CN203484960U CN 203484960 U CN203484960 U CN 203484960U CN 201320520655 U CN201320520655 U CN 201320520655U CN 203484960 U CN203484960 U CN 203484960U
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Abstract
The utility model discloses a transmission device for cutting a welding seam. The transmission device mainly comprises a tool rest (29) and a driving device, the tool rest (29) is used for mounting a tool, and the driving device drives the tool to rotate through a transmission component and is mounted on a base. The transmission device is characterized in that an axial feeding component and a radial feeding component are respectively arranged on the transmission device, the axial feeding component drives the tool to axially move, the radial feeding component drives the tool to radially move, and both the axial feeding component and the radial feeding component are arranged on the base. A double-feeding mode replaces a single-feeding mode in the prior art, by the double-feeding mode, the tool can do compound movement and can also do single movement, applicability of machining conditions is improved, and dependence on forming tools is decreased, so that the transmission device is high in working efficiency, high in universality and suitable for popularization.
Description
Technical field
The utility model relates to a kind of transmission device, relates in particular to a kind of transmission device for weld seam cutting.
Background technology
The welding when assembling with housing conventionally of multiple tube on heavy large volume pressure vessel, for guaranteeing seam inspection, every weld seam end face must, through hi-precision cutting, reach higher roughness requirement; In addition defective weld seam finished edge welding again after must excising.Because distinctive expensive, the Heavy Weight of heavy large volume pressure vessel, volume are large, weld seam welding quality requires high, this requires weld seam cutter sweep can adapt to difference and cuts operating modes, and the core of weld seam cutter sweep technology is exactly its transmission device.
Certain weld seam cutting transmission device reaches the object of processing weld seam by rotary cutter while axial feed, mainly reducing motor, casing, worm gear, worm screw, sleeve, power transmission shaft, gear, attachment driving shaft, insurance clutch, feeding clutch, feeding scale etc., consist of, reducing motor is arranged on casing and is connected with worm screw key, worm screw is arranged in casing and axial limiting, worm gear and sleeve are affixed, sleeve is connected with transmission shaft bond, power transmission shaft can move axially in sleeve, sleeve is connected with casing by bearing, by end cap axial limiting, gear is installed on sleeve, the gear engagement of it and attachment driving shaft, on attachment driving shaft, there is conical socket, conical socket coordinates with the steel ball of insurance clutch, insurance clutch is by housing, screw, spring, steel ball forms, a gear is arranged on insurance clutch, the gear being engaged with is arranged on sleeve, can move axially along sleeve, with lifting flange, cam, handle, pin forms feeding clutch, an axial limiting has been installed on sleeve, the screw rod of sleeve rotating relatively, driving lever and screw rod are affixed, on screw rod, coordinate a nut, nut is mounted and fixed on one end of power transmission shaft, the power transmission shaft other end is flange, for mounting tool post, feeding scale is arranged on casing tail end, form feeding indication with screw rod tail end, during work, the torque of reducing motor passes to sleeve by worm gear-endless screw, sleeve drives power transmission shaft rotation, thereby make knife rest rotation, also drive attachment driving shaft rotation simultaneously, by the gear drive feeding clutch gear on insurance clutch, by the pin in feeding clutch, pass to driving lever, driving lever is passed to screw rod rotation, between screw rod and power transmission shaft, has speed discrepancy, realizes power transmission shaft axial feed, when feeding resistance increases, the steel ball of insurance clutch rolls out in the conical socket of attachment driving shaft, and feeding stops, rotate feeding clutch handle, cam can make flange promote or decline, during connection, and pin and driving lever engagement, feeding starts, pin and driving lever disengagement during disconnection, feeding stops, automatic withdrawal, by anti-car, realize, manually withdrawing, must stop, and by stirring driving lever, makes screw rod reversion drive power transmission shaft to retreat realization.The axial feed of this transmission device is that its ratio is fixed value owing to there being speed discrepancy to produce between screw rod and power transmission shaft, and rotating speed is higher, and feeding is larger, cutting force is larger, easily forges a knife, and the roughness of finished surface and precision are difficult to guarantee, in addition, processing operating mode is single, and applicability is low.
Utility model content
The purpose of this utility model is to overcome existing weld seam cutting transmission device rotating speed of transmission shaft and feeding relation fixed correlation, is suitable for the defect that processing operating mode is single, a kind of axial feed and the radial feed that can simultaneously realize cutter is provided, and feeding and the separate universal transmission device for weld seam cutting of the speed of mainshaft.
The purpose of this utility model is achieved through the following technical solutions:
A kind of transmission device for weld seam cutting, mainly by the knife rest of mounting cutter, the drive unit that drives cutter to rotate by drive disk assembly, formed, described drive unit is arranged on support, on described transmission device, be also respectively equipped with and drive the axial feed parts of cutter axially-movable and the radial feed parts that drive cutter radial motion, described axial feed parts and radial feed parts are all arranged on support.
Further, the counter drive shaft that described drive disk assembly comprises the final drive shaft that is connected with knife rest by carriage saddle, is connected on this final drive shaft and can relative final drive shaft moves left and right; Described final drive shaft is also connected with drive unit and can moves left and right by relative drive unit, and described axial feed parts drive final drive shaft motion, and described radial feed parts drive counter drive shaft motion.
For the ease of being connected to counter drive shaft, described final drive shaft is hollow shaft, and described counter drive shaft is connected on the inwall of final drive shaft by counter feather key.
Further, described axial feed parts comprise by main shaft slip ring and are connected to the bracket on final drive shaft, the large handwheel that is connected to the axis feeding screw mandrel on bracket and is connected with this axis feeding screw mandrel; Described bracket is installed on support and all and can moves by relative support with axis feeding screw mandrel.
In order to satisfy the demand, described bracket also can move left and right by relative support on support by guide rails assembling, and described axis feeding screw mandrel is arranged on support and can be rotated relative to support by bearing.
The distance moving left and right for the ease of reading final drive shaft, the size of cutter axial feed is also provided with and indicates the main scale that final drive shaft moves left and right distance on described support.
Further, described radial feed parts comprise by countershaft slip ring and are connected to countershaft feed screw on counter drive shaft, by bearing, are arranged on bracket and the small handwheel that can rotate, the gear pair that is connected on small handwheel and drives countershaft feed screw to move left and right; Meanwhile, on described knife rest, be provided with the slotted hole of an inclination, in this slotted hole, be provided with the roller that can slide along slotted hole, on described counter drive shaft, be provided with the commutation fork arm being connected with this roller.
In order to realize better the utility model, on described countershaft feed screw, be provided with the countershaft feed nut axle being connected with gear pair, described countershaft feed nut axle is connected on bracket and bearing by bearing respectively.
The distance moving left and right for the ease of reading counter drive shaft, i.e. the size of cutter radial feeding is also provided with and indicates the main scale that counter drive shaft moves left and right distance on described countershaft feed screw.
In order to ensure effect, described drive unit comprise be connected with final drive shaft and by bearing, be arranged on the worm-wheel shaft on support, the worm screw that is connected to the worm gear on this worm-wheel shaft and is meshed with this worm gear; On described worm screw, be also connected with motor.
The utility model is compared compared with prior art, has the following advantages and beneficial effect:
(1) on transmission device of the present utility model, be also respectively equipped with and drive the axial feed parts of cutter axially-movable and the radial feed parts that drive cutter radial motion, thereby make two feeding modes that the utility model adopts replace single feeding mode of the prior art, of the present utility model pair of feeding mode makes cutter both can do compound motion, can also do single movement, improved the applicability of processing operating mode, reduced the dependence to forming tool, thereby make transmission device operating efficiency of the present utility model high, and highly versatile.
(2) axial feed parts of the present utility model drive final drive shaft motion, realize the axial feed of cutter, radial feed parts drive counter drive shaft motion, realize the radial feed of cutter, thereby make axial feed parts and the separate setting of radial feed parts, cutter is free to advance or retreat, the amount of feeding is selected according to processing operating mode, both guaranteed that finished surface reached requirement, improved again the service life of processing safety and cutter.
(3) final drive shaft of the present utility model is hollow shaft, counter drive shaft is connected on the inwall of final drive shaft by counter feather key, thereby under the dynamic action of drive unit, can make counter drive shaft synchronously rotate with final drive shaft, simultaneously due to counter drive shaft relatively final drive shaft move left and right, so can make counter drive shaft under the effect of radial feed parts, realize the radial feed to cutter.
(4) bracket of the present utility model is connected on final drive shaft by main shaft slip ring, makes the relative carriage turns of final drive shaft energy under the effect of main shaft slip ring, and while bracket also can promote final drive shaft and move left and right, thereby realizes the axial feed to cutter; On bracket, be connected with axis feeding screw mandrel, and be connected with large handwheel on axis feeding screw mandrel, rotate rotatable axis feeding screw mandrel of large handwheel, thereby driven bracket moves left and right, and can promote final drive shaft and move left and right.
(5) bracket of the present utility model by guide rails assembling on support, thereby can make bracket move left and right by relative support, axis feeding screw mandrel is arranged on support by bearing, thereby axis feeding screw mandrel can be rotated relative to support, to facilitate the axial feed of realizing cutter.
(6) on support of the present utility model, be also provided with main scale, conveniently by this main scale, read the distance that final drive shaft moves left and right, the data of the main scale reading are the axial feeding of cutter.
(7) countershaft feed screw of the present utility model is connected on counter drive shaft by countershaft slip ring, counter drive shaft can be rotated relative to countershaft feed screw under the effect of countershaft slip ring, while countershaft feed screw also can promote counter drive shaft and move left and right, thus the convenient radial feed of realizing cutter; Gear pair drives countershaft feed screw to move left and right, and connects small handwheel and can facilitate turning gear wheel set on gear pair; Simultaneously, on knife rest, be provided with the slotted hole of an inclination, in this slotted hole, be provided with the roller that can slide along slotted hole, on counter drive shaft, be provided with the commutation fork arm being connected with this roller, cutter is connected with roller, when countershaft feed screw promotion counter drive shaft moves left and right, under the effect of commutation fork arm, can along plagioclase hole, slide by pushing rolling wheels, can realize the radial feed to cutter.
(8) the countershaft feed nut axle that is provided with of the present utility model, can facilitate countershaft feed screw to be connected with gear pair by this countershaft feed nut axle, thereby facilitates gear pair to drive countershaft feed screw to move left and right; Countershaft feed nut axle is connected on bracket and bearing by bearing respectively, thereby countershaft feed nut axle can be arranged on to bracket and bearing, also can make countershaft feed nut axle rotate simultaneously.
(9) on countershaft feed screw of the present utility model, be also provided with main scale, conveniently by this main scale, read the distance that counter drive shaft moves left and right, thereby be convenient to calculate by reading the data of this main scale the radial feeds of cutter.
(10) drive unit of the present utility model comprises worm-wheel shaft, worm gear and the worm screw cooperatively interacting, worm-wheel shaft is connected with final drive shaft, on worm screw, connect motor, can be by the transmission of power of motor to final drive shaft under the effect of worm screw, worm gear and worm-wheel shaft, thereby drive final drive shaft to rotate, can realize the rotation of cutter, so that cutter cuts workpiece.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the stressed schematic diagram of roller of the present utility model in slotted hole.
Wherein, the corresponding name of the Reference numeral in accompanying drawing is called:
1-casing, 2-frame, 3-final drive shaft, 4-counter drive shaft, 5-main shaft feather key, 6-counter feather key, 7-worm-wheel shaft, 8-worm gear, 9-worm screw, 10-main shaft slip ring, 11-countershaft slip ring, 12-bracket, 13-bearing, 14-axis feeding screw mandrel, 15-main shaft feed screw nut, 16-countershaft feed screw, 17-countershaft feed nut axle, 18-nut shaft end cap, 19-gear wheel, 20-pinion, 21-main scale, 22-complementary scale, 23-large handwheel, 24-small handwheel, 25-guide rail, 26-counter flange, 27-commutation fork arm, 28-roller, 29-knife rest, 30-carriage saddle.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail:
Embodiment
As shown in Figure 1, 2, transmission device of the present utility model, is mainly comprised of support, and support of the present utility model is the assembly of frame 2 and casing 1.On casing 1, be also provided with counter flange 26, by this counter flange 26, transmission device of the present utility model can be arranged on main process equipment.
On described support, be also provided with drive unit, described drive unit comprises worm-wheel shaft 7, being connected on frame 2 and casing 1 by bearing respectively of this worm-wheel shaft 7.On described worm-wheel shaft 7, be also connected with worm gear 8, meanwhile, on described worm gear 8, be also connected with worm screw 9.During use, motor is connected on worm screw to 9, motor of the present utility model is arranged on casing 1.Starter motor, can be passed to worm gear 8 by worm screw 9 by the power of motor, and drives worm-wheel shaft 7 to rotate by worm gear 8.
For the ease of mounting cutter, transmission device of the present utility model also comprises knife rest 29.For the ease of by the transmission of power of drive unit to knife rest 29, thereby cutter is rotated and cut workpiece, on described worm-wheel shaft 7, be also provided with the drive disk assembly that drives cutter to rotate.Described drive disk assembly comprises the final drive shaft 3 being connected on worm-wheel shaft 7, and this final drive shaft 3 is also connected with knife rest 29 by carriage saddle 29.Described worm-wheel shaft 7 is hollow shaft, and described final drive shaft 3 is connected on the inwall of worm-wheel shaft 7 by main shaft feather key 5, thereby makes final drive shaft 3 can synchronize with worm-wheel shaft 7 rotation, and meanwhile, this final drive shaft 3 relatively worm-wheel shaft 7 moves left and right.Described final drive shaft 3 is also hollow shaft, on this final drive shaft 3, be also connected with counter drive shaft 4,4 of described counter drive shafts are connected to by counter feather key 6 on the inwall of final drive shaft 3, thereby make counter drive shaft 4 can synchronize with final drive shaft 3 rotation, meanwhile, this counter drive shaft 4 also relatively final drive shaft 3 move left and right.During cutter work, motor drives worm-wheel shaft 7 to rotate, and 7 of worm-wheel shafts drive final drive shaft 3 to rotate, and 3 of final drive shafts rotate by carriage saddle 30 band movable knife racks 29, thereby drive the cutter being arranged on knife rest 29 to rotate.Meanwhile, counter drive shaft 4 is synchronizeed rotation with final drive shaft 3.
For the ease of driving cutter axially-movable, on described final drive shaft 3, be also provided with axial feed parts.Described axial feed parts comprise bracket 12, and this bracket 12 is connected on final drive shaft 3 by main shaft slip ring 10.Described final drive shaft 3 is connected on the interior ring of main shaft slip ring 10, and bracket 12 is connected on the outer shroud of main shaft slip ring 10, thereby final drive shaft 10 can rotate relative to bracket 12.Described bracket 12 is arranged in frame 2 by track 25, and this bracket 12 can move left and right along frame 2, so that promote final drive shaft 3, moves left and right.
For the ease of promoting bracket 12, move left and right, thereby promote cutter by final drive shaft 3, move left and right, to realize the axis feeding to cutter, on described bracket 12, be also connected with axis feeding screw mandrel 14.Described axis feeding screw mandrel 14 is arranged in frame 2 by bearing, thereby this axis feeding screw mandrel 14 can be rotated relative to frame 2.For the ease of rotating spindle feed screw 14, thereby drive bracket 12 to move left and right by axis feeding screw mandrel 14, on described axis feeding screw mandrel 14, be also connected with large handwheel 23, rotate 23 rotatable axis feeding screw mandrels 14 of large handwheel.The distance moving left and right for the ease of indicating final drive shaft 3 so that indicate the axial feeding of cutter, is also provided with main scale 21 in described frame 2.Meanwhile, on described large handwheel 23, be also provided with complementary scale 22, this complementary scale 22 is annular, and this complementary scale 22 is arranged on large handwheel 23 and can synchronously rotates with large handwheel 23, also can rotate relative to large handwheel 23.
For the ease of driving cutter radial motion, on described counter drive shaft 4, be also provided with radial feed parts.Described radial feed parts comprise by countershaft slip ring 11 and are connected to the countershaft feed screw 16 on counter drive shaft 4, described counter drive shaft 4 is connected on the interior ring of countershaft slip ring 11,16 of described countershaft feed screws are connected on the outer shroud of countershaft slip ring 11, thereby counter drive shaft 4 can be rotated relative to countershaft feed screw 16.On described bracket 12, be also provided with small handwheel 24, this small handwheel 24 is arranged on bracket 12 by bearing 13, and this small handwheel 24 can rotate.
For the ease of driving countershaft feed screw 16 to move left and right by rotating small handwheel 24, on described small handwheel 24, be also provided with the gear pair that drives countershaft feed screw 16 to move left and right.Described gear pair comprises the pinion 20 being connected on small handwheel 24 and the gear wheel 19 being meshed with this pinion 20, and described gear wheel 19 has through hole.Simultaneously, on described countershaft feed screw 16, be also provided with the countershaft feed nut axle 17 matching with gear wheel 19, this countershaft feed nut axle 17 is enclosed within on countershaft feed screw 16 and with countershaft feed screw 16 and matches, and this countershaft feed nut 17 is connected on the through-hole wall of gear wheel 19 after matching with gear wheel 19, thereby this countershaft feed nut axle 17 can be synchronizeed with gear wheel 19 rotation, and can promote countershaft feed screw 16 and move left and right.
Described countershaft feed nut axle 17 is connected on bracket 12 and bearing 13 by bearing respectively, on described bearing 13, be also provided with nut shaft end cap 18, this nut shaft end cap 18 has the through hole matching with countershaft feed screw 16, after described nut shaft end cap 18 coordinates with countershaft feed screw 16 by its through hole, on countershaft feed screw 16, and be matched in clearance between these nut shaft end cap 18 through holes and countershaft feed screw 16.On described nut shaft end cap 18, be provided with bossy body, on described countershaft feed screw 16, be also provided with the keyway matching with the bossy body of nut shaft end cap 18, the bossy body of described nut shaft end cap 18 is connected on countershaft feed screw 16 after coordinating with countershaft feed screw 16 keyways, thereby can stop countershaft feed screw 16 to rotate, meanwhile, this nut shaft end cap 18 also can carry out spacing to countershaft feed nut axle 17.The length of the keyway of described countershaft feed screw 16 is greater than the length of the bossy body of nut shaft end cap 18, the bossy body that is nut shaft end cap 18 can horizontally slip in the keyway of countershaft feed screw 16, thus make countershaft feed screw 16 relatively nut shaft end cap 18 move left and right.
Meanwhile, be also provided with the slotted hole of an inclination on described knife rest 29, be provided with the roller 28 that can slide along this slotted hole in this slotted hole, cutter is connected on roller 28, when roller 28 slides in slotted hole, can be with cutter to move up and down.For the ease of driving rolls 28, along slotted hole, slide, on described counter drive shaft 4, be also provided with the commutation fork arm 27 being connected with roller 28.When countershaft feed screw 16 promotes counter drive shaft 4 phase left movement, at the next roller 28 that drives of effect of commutation fork arm 27, along slotted hole, slide, thereby can realize the radial feed to cutter.The distance moving left and right for the ease of indicating counter drive shaft 4 so that the distance moving left and right by the counter drive shaft 4 indicating is calculated the radial feeds of cutter, is also provided with main scale 21 on described countershaft feed screw 16.Meanwhile, be yet provided with complementary scale 22 on described small handwheel 24, this complementary scale 22 is arranged on small handwheel 24 and can synchronously rotates with small handwheel 24, also can rotate relative to small handwheel 24.
Fig. 2 is the stressed schematic diagram in the slotted hole of roller 28 of the present utility model on knife rest 29, wherein, because slotted hole is obliquely installed, α is the angle of slotted hole vertical direction, F is counter drive shaft 4 through the active force of commutation fork arm 27 pair rollers 28, and F1 is the active force that F vertically produces while acting on roller 28.In figure, force analysis can be found out, the angled α tangent relationship of F1 and F, and α value is larger, and F1 is just larger, but the slippage stroke of knife rest 29 is less, considers each factor, and the selection range of α of the present utility model is 45 °～60 °.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. the transmission device for weld seam cutting, mainly by the knife rest (29) of mounting cutter, the drive unit that drives cutter to rotate by drive disk assembly, formed, described drive unit is arranged on support, it is characterized in that: on described transmission device, be also respectively equipped with and drive the axial feed parts of cutter axially-movable and the radial feed parts that drive cutter radial motion, described axial feed parts and radial feed parts are all arranged on support.
2. according to a kind of transmission device for weld seam cutting claimed in claim 1, it is characterized in that: described drive disk assembly comprises the final drive shaft (3) that is connected with knife rest (29) by carriage saddle (30), is connected to the counter drive shaft (4) that this final drive shaft (3) is upper and the relative final drive shaft of energy (3) moves left and right; Described final drive shaft (3) is also connected with drive unit and can moves left and right by relative drive unit, and described axial feed parts drive final drive shaft (3) motion, and described radial feed parts drive counter drive shaft (4) motion.
3. according to a kind of transmission device for weld seam cutting claimed in claim 2, it is characterized in that: described final drive shaft (3) is hollow shaft, and described counter drive shaft (4) is connected on the inwall of final drive shaft (3) by counter feather key (6).
4. according to a kind of transmission device for weld seam cutting described in claim 2 or 3, it is characterized in that: described axial feed parts comprise by main shaft slip ring (10) and are connected to the bracket (12) on final drive shaft (3), the large handwheel (23) that is connected to the axis feeding screw mandrel (14) on bracket (12) and is connected with this axis feeding screw mandrel (14); Described bracket (12) is installed on support and all and can moves by relative support with axis feeding screw mandrel (14).
5. according to a kind of transmission device for weld seam cutting claimed in claim 4, it is characterized in that: described bracket (12) is arranged on support and can be moved left and right by relative support by guide rail (25), and described axis feeding screw mandrel (14) is arranged on support and can be rotated relative to support by bearing.
6. according to a kind of transmission device for weld seam cutting claimed in claim 5, it is characterized in that: on described support, be also provided with and indicate the main scale (21) that final drive shaft (3) moves left and right distance.
7. according to a kind of transmission device for weld seam cutting described in claim 5 or 6, it is characterized in that: described radial feed parts comprise by countershaft slip ring (11) and are connected to countershaft feed screw (16) on counter drive shaft (4), by bearing (13), are arranged on the upper small handwheel (24) that also can rotate of bracket (12), are connected to the gear pair that small handwheel (24) goes up and drive countershaft feed screw (16) to move left and right; Meanwhile, on described knife rest (29), be provided with the slotted hole of an inclination, in this slotted hole, be provided with the roller (28) that can slide along slotted hole, on described counter drive shaft (4), be provided with the commutation fork arm (27) being connected with this roller (28).
8. according to a kind of transmission device for weld seam cutting claimed in claim 7, it is characterized in that: on described countershaft feed screw (16), be provided with the countershaft feed nut axle (17) being connected with gear pair, described countershaft feed nut axle (17) is connected on bracket (12) and bearing (13) by bearing respectively.
9. according to a kind of transmission device for weld seam cutting claimed in claim 8, it is characterized in that: on described countershaft feed screw (16), be also provided with and indicate the main scale (21) that counter drive shaft (4) moves left and right distance.
10. according to a kind of transmission device for weld seam cutting described in claim 8 or 9, it is characterized in that: described drive unit comprise be connected with final drive shaft (3) and by bearing, be arranged on the worm-wheel shaft (7) on support, the worm screw (9) that is connected to the worm gear (8) on this worm-wheel shaft (7) and is meshed with this worm gear (8); On described worm screw (9), be also connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520655.2U CN203484960U (en) | 2013-08-23 | 2013-08-23 | Transmission device for cutting welding seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520655.2U CN203484960U (en) | 2013-08-23 | 2013-08-23 | Transmission device for cutting welding seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484960U true CN203484960U (en) | 2014-03-19 |
Family
ID=50255818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520655.2U Withdrawn - After Issue CN203484960U (en) | 2013-08-23 | 2013-08-23 | Transmission device for cutting welding seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203484960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433791A (en) * | 2013-08-23 | 2013-12-11 | 四川航天系统工程研究所 | Transmission device for welding line cutting |
-
2013
- 2013-08-23 CN CN201320520655.2U patent/CN203484960U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433791A (en) * | 2013-08-23 | 2013-12-11 | 四川航天系统工程研究所 | Transmission device for welding line cutting |
| CN103433791B (en) * | 2013-08-23 | 2015-07-22 | 四川航天系统工程研究所 | Transmission device for welding line cutting |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150722 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150722 |
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| RGAV | Abandon patent right to avoid regrant |