CN210967249U - Hydraulic rotary pipe cutter - Google Patents
Hydraulic rotary pipe cutter Download PDFInfo
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- CN210967249U CN210967249U CN201921565557.4U CN201921565557U CN210967249U CN 210967249 U CN210967249 U CN 210967249U CN 201921565557 U CN201921565557 U CN 201921565557U CN 210967249 U CN210967249 U CN 210967249U
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- pipeline
- cutting
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- sliding
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Abstract
The utility model relates to the technical field of pipe cutting machines, in particular to a hydraulic rotary pipe cutting machine, which comprises a pipe cutting fixing table component, a rotation adjusting device, a pipeline end face fixing device, a cutting bearing fixing base and a lifting cutting device, wherein a screw rod II is rotated according to the length of a pipeline, the distance between two bearing seats II is adjusted, the pipeline is placed between the two bearing seats II, two groups of telescopic blocks are arranged in pipe orifices at two ends of the pipeline, six telescopic rods are simultaneously started, the pipeline is fixed by utilizing the two groups of telescopic blocks, in addition, two bearing circular plates are extruded, the pipeline is completely fixed, after the pipeline is fixed, the screw rod I is rotated according to a cutting point, a saw blade of an electric saw is positioned right above the cutting point, the electric saw and a hydraulic cylinder are simultaneously started, the hydraulic cylinder drives a rotary electric saw to move downwards, after the electric saw finishes the surface cutting of the pipeline, two, the two motors drive the pipeline to slowly rotate through the bearing circular plate, and the pipeline can be completely cut after the pipeline rotates for a circle.
Description
Technical Field
The utility model relates to a pipe cutting machine technical field, more specifically the hydraulic pressure rotation type pipe cutting machine that says so.
Background
A novel full-automatic pipe cutting machine with a patent number of CN201620151746.7 at present comprises a handle, a shearing knife, a groove, a shock absorber, a working platform, a fixed support, a pipe cutting machine body, a gasket, a rotating shaft, a telescopic rod, a hydraulic system, a rotating motor and a power switch, wherein the handle is installed on the pipe cutting machine body; the pipe cutting machine body is provided with a shearing knife; the groove is arranged on the working platform; a fixed bracket is arranged below the working platform; a gasket is arranged on the outer side of the shearing knife; the rotating shaft is arranged on the pipe cutting machine body; the telescopic rod is arranged on the hydraulic system; a rotating motor is arranged in the pipe cutting machine body; and a power switch is arranged on the pipe cutting machine body. This novel can not be fine fix the pipeline, and the cutting force that produces moreover is less, and the time of cutting off the pipeline is longer.
Disclosure of Invention
The utility model relates to a pipe cutting machine technical field, more specifically the hydraulic pressure rotation type pipe cutting machine that says so, bear unable adjustment base and lift cutting device including pipe cutting fixed table component, rotation adjusting device, pipeline terminal surface fixing device, cutting, this device can carry out fine fixed to the pipeline, produces bigger cutting force, spends less time and accomplishes the cutting to the pipeline.
Hydraulic pressure rotation type pipe cutting machine, including pipe cutting fixed table component, this hydraulic pressure rotation type pipe cutting machine still bears unable adjustment base and lift cutting device including rotating adjusting device, pipeline terminal surface fixing device, cutting, pipe cutting fixed table component on fixedly connected with rotate adjusting device, pipeline terminal surface fixing device be provided with two, two pipeline terminal surface fixing device be sliding connection respectively at rotate adjusting device both ends about, the cutting bears unable adjustment base sliding connection at the front end of pipe cutting fixed table component, the cutting bears fixedly connected with lift cutting device on the unable adjustment base.
As this technical scheme's further optimization, the utility model discloses hydraulic pressure rotation type pipe cutting machine cut a tub fixed table component including bearing table, channel, slide, bearing frame I, lead screw I and crank I, both ends are provided with slide and channel respectively around bearing the table, the equal fixedly connected with bearing frame I in both ends about the slide, lead screw I's both ends rotate with two bearing frame I respectively and are connected, lead screw I's right-hand member fixedly connected with crank I.
As this technical scheme's further optimization, the utility model discloses hydraulic pressure rotation type pipe cutting machine rotation adjusting device include fixed plate, traveller I, lead screw II and crank II, the fixed plate be provided with two, two fixed plate difference fixed connection both ends about the channel, the equal fixedly connected with traveller I in both ends around between two channels, lead screw II's both ends rotate with two fixed plates respectively and are connected, the screw at lead screw II both ends is soon to opposite, lead screw II's right-hand member fixedly connected with crank II.
As a further optimization of the technical proposal, the pipeline end surface fixing device of the hydraulic rotary pipe cutting machine of the utility model comprises a bearing seat II, a sealing ring, a bearing circular plate and a T-shaped groove, the telescopic link, flexible piece, fixed block and motor, the bearing frame II internal rotation is connected with the seal ring, fixedly connected with bears the plectane in the seal ring, evenly be provided with three T-slot on bearing the plectane, the three telescopic link of even fixedly connected with in the seal ring, the equal sliding connection has flexible piece in the three T-slot, three telescopic link respectively with three flexible piece fixed connection, the below fixedly connected with fixed block of bearing frame II outer end, fixedly connected with motor on the fixed block, the output shaft of motor with bear plectane fixed connection, two bearing frame II sliding connection are at both ends about two traveller I respectively, two bearing frame II are respectively through threaded connection both ends about lead screw II.
As this technical scheme's further optimization, the utility model discloses hydraulic pressure rotation type pipe cutting machine the cutting bear unable adjustment base and include right-angle board, roof and traveller II, right-angle board sliding connection pass through threaded connection in the slide and with lead screw I, the upper end fixedly connected with roof of right-angle board, two traveller II of fixedly connected with between right-angle board and the roof.
As a further optimization of this technical scheme, the utility model discloses hydraulic pressure rotation type pipe cutting machine lift cutting device include slide, pneumatic cylinder and electric saw, slide and two traveller II sliding connection, slide's upper end fixedly connected with pneumatic cylinder, the upper end and the roof fixed connection of pneumatic cylinder, slide's lower extreme fixedly connected with electric saw.
The utility model discloses hydraulic pressure rotation type pipe cutting machine's beneficial effect does:
according to the length rotation lead screw II of pipeline, adjust the distance between two bearing frame II, place the pipeline between two bearing frame II, and arrange the mouth of pipe at pipeline both ends in two sets of flexible pieces, start six telescopic links simultaneously, utilize two sets of flexible pieces to fix the pipeline, in addition, two extrusion that bear the weight of the disc, fix the pipeline completely, after fixing, according to the cutting point, rotate lead screw I, let the saw bit of electric saw be located the cutting point directly over, start electric saw and pneumatic cylinder simultaneously, the pneumatic cylinder drives pivoted electric saw and moves down, after the face cutting of pipeline finishes when the electric saw, start two motors simultaneously, two motors drive the pipeline through bearing the disc and slowly rotate, the pipeline can be cut completely after the pipeline rotates a week.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a hydraulic rotary pipe cutting machine of the present invention;
FIG. 2 is a schematic view of a tube cutting fixing table member;
FIG. 3 is a schematic view of a portion of a tube cutting and fixing table member;
FIG. 4 is a schematic view of a rotation adjustment device;
FIG. 5 is a schematic view of the pipe end face fixture;
FIG. 6 is another schematic view of the fixing device for the end face of the pipeline;
FIG. 7 is a first view showing a part of the structure of the pipe end face fixing device;
FIG. 8 is a second schematic view of a portion of the pipe end face fixture;
FIG. 9 is a schematic view of a cutting load-bearing fixture base;
fig. 10 is a schematic structural view of the lifting cutting device.
In the figure: cutting a pipe to fix the table member 1; a carrying table 1-1; channels 1-2; 1-3 of a slideway; bearing seat I1-4; a lead screw I1-5; a crank I1-6; a rotation adjusting device 2; a fixing plate 2-1; a sliding column I2-2; a screw II 2-3; a crank II 2-4; a pipeline end face fixing device 3; bearing seat II 3-1; 3-2 of a seal ring; a bearing circular plate 3-3; t-shaped grooves 3-4; 3-5 parts of a telescopic rod; 3-6 of a telescopic block; 3-7 parts of a fixed block; 3-8 of a motor; cutting the bearing fixed base 4; 4-1 of a right-angle plate; a top plate 4-2; sliding column II 4-3; a lifting cutting device 5; 5-1 of a lifting sliding plate; 5-2 of a hydraulic cylinder; 5-3 of an electric saw.
Detailed Description
The first embodiment is as follows:
the present invention relates to the technical field of pipe cutting machines, and more particularly to a hydraulic rotary pipe cutting machine, which comprises a pipe cutting fixing table member 1, a rotation adjusting device 2, a pipe end surface fixing device 3, a cutting bearing fixing base 4 and a lifting cutting device 5, wherein a screw II2-3 is rotated according to the length of a pipe, the distance between two bearing blocks II3-1 is adjusted, the pipe is placed between the two bearing blocks II3-1, two sets of telescopic blocks 3-6 are placed in pipe orifices at two ends of the pipe, six telescopic rods 3-5 are simultaneously started, the pipe is fixed by using the two sets of telescopic blocks 3-6, and the two bearing circular plates 3-3 are extruded to completely fix the pipe, after the pipe is fixed, the screw I1-5 is rotated according to a cutting point, so that a saw blade of an electric saw 5-3 is positioned right above the cutting point, the electric saw 5-3 and the hydraulic cylinder 5-2 are started simultaneously, the hydraulic cylinder 5-2 drives the rotary electric saw 5-3 to move downwards, after the electric saw 5-3 cuts the surface of the pipeline, the two motors 3-8 are started simultaneously, the two motors 3-8 drive the pipeline to rotate slowly through the bearing circular plate 3-3, and the pipeline can be completely cut after rotating for one circle;
hydraulic pressure rotation type pipe cutting machine, including pipe cutting fixed table component 1, this hydraulic pressure rotation type pipe cutting machine still bears unable adjustment base 4 and lift cutting device 5 including rotating adjusting device 2, pipeline terminal surface fixing device 3, cutting, pipe cutting fixed table component 1 on fixedly connected with rotate adjusting device 2, pipeline terminal surface fixing device 3 be provided with two, two pipeline terminal surface fixing device 3 respectively sliding connection are at both ends about rotating adjusting device 2, the cutting bears unable adjustment base 4 sliding connection at the front end of pipe cutting fixed table component 1, the cutting bears fixedly connected with lift cutting device 5 on unable adjustment base 4.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1-10, and the embodiment further describes the first embodiment, in which the pipe cutting fixing table component 1 includes a bearing table 1-1, a channel 1-2, a slideway 1-3, a bearing seat I1-4, a screw I1-5, and a crank I1-6, the bearing table 1-1 plays a role of bearing and fixing support, the front and rear ends of the bearing table 1-1 are respectively provided with the slideway 1-3 and the channel 1-2, the channel 1-2 can provide a fixed space for the fixing plate 2-1, the slideway 1-3 can provide a fixed space for the right-angle plate 4-1, the left and right ends of the slideway 1-3 are both fixedly connected with the bearing seat I1-4, the bearing seat I1-4 can limit the screw I1-5, the lead screw I1-5 can only rotate around the axis of the lead screw I1-5, two ends of the lead screw I1-5 are respectively connected with two bearing seats I1-4 in a rotating manner, the rotating lead screw I1-5 can drive the right-angle plate 4-1 to slide left and right, the right end of the lead screw I1-5 is fixedly connected with a crank I1-6, and the crank I1-6 can easily drive the lead screw I1-5 to rotate.
The third concrete implementation mode:
the embodiment is described below with reference to fig. 1-10, and the embodiment further describes a second embodiment, where the rotation adjustment device 2 includes two fixing plates 2-1, sliding columns I2-2, a screw II2-3, and a crank II2-4, the two fixing plates 2-1 are respectively and fixedly connected to the left and right ends of the channels 1-2, the two fixing plates 2-1 play a role in bearing and fixing, the sliding columns I2-2 are respectively and fixedly connected to the front and rear ends between the two channels 1-2, the two sliding columns I2-2 can limit the bearing seat II3-1, so that the bearing seat II3-1 can only slide left and right, the two ends of the screw II2-3 are respectively and rotatably connected to the two fixing plates 2-1, the rotating screw II2-3 can drive the two bearing seats II3-1 to move, according to the difference of the lengths of pipelines, the distance between two bearing seats II3-1 is adjusted by utilizing a lead screw II2-3, the screw thread turning directions of two ends of the lead screw II2-3 are opposite, and the screw thread turning directions of two ends of the lead screw II2-3 are opposite, so that the rotating lead screw II2-3 can simultaneously drive two bearing seats II3-1 to slide inwards or outwards, the right end of the lead screw II2-3 is fixedly connected with a crank II2-4, and the crank II2-4 can easily drive the lead screw II2-3 to rotate.
The fourth concrete implementation mode:
the embodiment is described below with reference to fig. 1 to 10, and the third embodiment is further described in the present embodiment, in which the pipeline end face fixing device 3 includes a bearing seat II3-1, a seal ring 3-2, a bearing circular plate 3-3, a T-shaped groove 3-4, a telescopic rod 3-5, a telescopic block 3-6, a fixing block 3-7 and a motor 3-8, the bearing seat II3-1 plays a role of bearing and fixing, the bearing seat II3-1 is rotatably connected with the seal ring 3-2, the seal ring 3-2 can provide a fixed space for the telescopic rod 3-5, the seal ring 3-2 is internally and fixedly connected with the bearing circular plate 3-3, the bearing circular plate 3-3 plays a role of bearing and connecting, the bearing circular plate 3-3 is uniformly provided with three T-shaped grooves 3-4, the T-shaped grooves 3-4 can provide a sliding space for the telescopic block 3-6, three telescopic rods 3-5 are uniformly and fixedly connected in the sealing ring 3-2, the telescopic rods 3-5 can drive the telescopic blocks 3-6 to move, the positions of the telescopic blocks 3-6 are adjusted according to different diameters of pipelines, the pipelines are fixed by the three telescopic blocks 3-6, the telescopic blocks 3-6 are respectively and slidably connected in the three T-shaped grooves 3-4, the three telescopic rods 3-5 are respectively and fixedly connected with the three telescopic blocks 3-6, a fixed block 3-7 is fixedly connected below the outer end of the bearing seat II3-1, the fixed block 3-7 can provide a fixed space for the motor 3-8, the motor 3-8 is fixedly connected on the fixed block 3-7, the motor 3-8 can drive the bearing circular plate 3-3 to rotate, the rotating bearing circular plate 3-3 can drive the pipelines to rotate, when the pipeline is cut, the pipeline is rotated for one circle to complete the paired cutting work, an output shaft of a motor 3-8 is fixedly connected with a bearing circular plate 3-3, two bearing seats II3-1 are respectively and slidably connected to the left end and the right end of two sliding columns I2-2, and two bearing seats II3-1 are respectively and threadedly connected to the left end and the right end of a screw II 2-3.
The fifth concrete implementation mode:
the following describes the present embodiment with reference to fig. 1 to 10, and the cutting bearing fixing base 4 further described in the fourth embodiment includes a right-angle plate 4-1, a top plate 4-2, and a sliding pillar II4-3, the right-angle plate 4-1 is slidably connected in the slideway 1-3 and is in bearing connection with the screw I1-5 through the threaded connection right-angle plate 4-1, the top plate 4-2 is fixedly connected to the upper end of the right-angle plate 4-1, two sliding pillars II4-3 are fixedly connected between the right-angle plate 4-1 and the top plate 4-2, and the two sliding pillars II4-3 can limit the lifting sliding plate 5-1, so that the lifting sliding plate 5-1 can only slide up and down, and the cutting position of the electric saw 5-3 is ensured to be unchanged.
The sixth specific implementation mode:
the embodiment is described below with reference to fig. 1-10, and the fifth embodiment is further described in the present embodiment, where the lifting cutting device 5 includes a lifting sliding plate 5-1, a hydraulic cylinder 5-2, and an electric saw 5-3, the lifting sliding plate 5-1 is slidably connected to two sliding columns II4-3, the lifting sliding plate 5-1 plays a role of bearing connection, the hydraulic cylinder 5-2 is fixedly connected to the upper end of the lifting sliding plate 5-1, after the hydraulic cylinder 5-2 is started, the hydraulic cylinder 5-2 can drive the lifting sliding plate 5-1 to slide up and down, so as to drive the lifting sliding plate 5-1 to move up and down, and cut the pipe, the upper end of the hydraulic cylinder 5-2 is fixedly connected to the top plate 4-2, the lower end of the lifting sliding plate 5-1 is fixedly connected to the electric saw 5-3, after the electric saw 5, the electric saw 5-3 rotates the saw blade to cut the pipe.
The utility model discloses hydraulic pressure rotation type pipe cutting machine's theory of operation:
rotating a lead screw II2-3 according to the length of a pipeline, adjusting the distance between two bearing seats II3-1, placing the pipeline between two bearing seats II3-1, placing two groups of telescopic blocks 3-6 in pipe orifices at two ends of the pipeline, starting six telescopic rods 3-5 simultaneously, fixing two ends of the pipeline by using the two groups of telescopic blocks 3-6, extruding two bearing circular plates 3-3 to two ends of the pipeline to completely fix the pipeline, rotating the lead screw I1-5 according to a cutting point after fixing, enabling a saw blade of an electric saw 5-3 to be positioned right above the cutting point, starting the electric saw 5-3 and a hydraulic cylinder 5-2 simultaneously, driving the rotating electric saw 5-3 to move downwards by the hydraulic cylinder 5-2, closing the hydraulic cylinder 5-2 after the electric saw 5-3 cuts the surface of the pipeline completely, the hydraulic cylinder 5-2 is prevented from driving the electric saw 5-3 to move downwards too deep, so that the electric saw 5-3 is contacted with the pipeline to damage the electric saw 5-3, the two motors 3-8 are started at the same time, the two motors 3-8 drive the pipeline to slowly rotate through the bearing circular plate 3-3, the pipeline can be completely cut after the pipeline rotates for a circle, and the two motors 3-8 are closed after the pipeline is cut, so that the phenomenon of wire winding is prevented.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (6)
1. Hydraulic pressure rotation type pipe cutting machine is including cutting fixed table component of pipe (1), its characterized in that: this hydraulic pressure rotation type pipe cutting machine still bears unable adjustment base (4) and lift cutting device (5) including rotating adjusting device (2), pipeline terminal surface fixing device (3), cutting, pipe cutting fixed table component (1) on fixedly connected with rotate adjusting device (2), pipeline terminal surface fixing device (3) be provided with two, both ends about rotating adjusting device (2) are connected in sliding respectively in two pipeline terminal surface fixing device (3), the cutting bears unable adjustment base (4) sliding connection at the front end of pipe cutting fixed table component (1), the cutting bears fixedly connected with lift cutting device (5) on unable adjustment base (4).
2. The hydraulic rotary pipe cutter as recited in claim 1, wherein: the pipe cutting fixing table component (1) comprises a bearing table (1-1), channels (1-2), slideways (1-3), bearing seats I (1-4), lead screws I (1-5) and cranks I (1-6), wherein the front end and the rear end of the bearing table (1-1) are respectively provided with the slideways (1-3) and the channels (1-2), the left end and the right end of the slideways (1-3) are respectively and fixedly connected with the bearing seats I (1-4), the two ends of the lead screws I (1-5) are respectively and rotatably connected with the two bearing seats I (1-4), and the right end of the lead screws I (1-5) is fixedly connected with the cranks I (1-6).
3. The hydraulic rotary pipe cutter as recited in claim 2, wherein: the rotation adjusting device (2) comprises two fixing plates (2-1), two sliding columns I (2-2), a screw rod II (2-3) and a crank II (2-4), wherein the two fixing plates (2-1) are fixedly connected to the left end and the right end of each channel (1-2) respectively, the sliding columns I (2-2) are fixedly connected to the front end and the rear end between the two channels (1-2), the two ends of the screw rod II (2-3) are rotatably connected with the two fixing plates (2-1) respectively, the screw threads at the two ends of the screw rod II (2-3) are opposite in rotating direction, and the crank II (2-4) is fixedly connected to the right end of the screw rod II (2-3).
4. A hydraulic rotary pipe cutter as defined in claim 3, wherein: the pipeline end face fixing device (3) comprises a bearing seat II (3-1), a sealing ring (3-2), a bearing circular plate (3-3), a T-shaped groove (3-4), telescopic rods (3-5), telescopic blocks (3-6), a fixing block (3-7) and a motor (3-8), wherein the sealing ring (3-2) is connected in the bearing seat II (3-1) in a rotating manner, the bearing circular plate (3-3) is fixedly connected in the sealing ring (3-2), the bearing circular plate (3-3) is uniformly provided with three T-shaped grooves (3-4), the three telescopic rods (3-5) are uniformly and fixedly connected in the sealing ring (3-2), the telescopic blocks (3-6) are respectively connected in the three T-shaped grooves (3-4) in a sliding manner, and the three telescopic rods (3-5) are respectively and fixedly connected with the three telescopic blocks (3-6), the lower part of the outer end of the bearing seat II (3-1) is fixedly connected with a fixed block (3-7), the fixed block (3-7) is fixedly connected with a motor (3-8), an output shaft of the motor (3-8) is fixedly connected with a bearing circular plate (3-3), the two bearing seats II (3-1) are respectively connected to the left end and the right end of the two sliding columns I (2-2) in a sliding mode, and the two bearing seats II (3-1) are respectively connected to the left end and the right end of the screw rod II (2-3) through threads.
5. The hydraulic rotary pipe cutter as recited in claim 4, wherein: the cutting bearing fixing base (4) comprises right-angle plates (4-1), a top plate (4-2) and sliding columns II (4-3), the right-angle plates (4-1) are connected in the slideways (1-3) in a sliding mode and are connected with the lead screws I (1-5) through threads, the top plate (4-2) is fixedly connected to the upper ends of the right-angle plates (4-1), and the two sliding columns II (4-3) are fixedly connected between the right-angle plates (4-1) and the top plate (4-2).
6. The hydraulic rotary pipe cutter as recited in claim 5, wherein: the lifting cutting device (5) comprises a lifting sliding plate (5-1), a hydraulic cylinder (5-2) and an electric saw (5-3), the lifting sliding plate (5-1) is connected with two sliding columns II (4-3) in a sliding mode, the upper end of the lifting sliding plate (5-1) is fixedly connected with the hydraulic cylinder (5-2), the upper end of the hydraulic cylinder (5-2) is fixedly connected with a top plate (4-2), and the lower end of the lifting sliding plate (5-1) is fixedly connected with the electric saw (5-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565557.4U CN210967249U (en) | 2019-09-20 | 2019-09-20 | Hydraulic rotary pipe cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565557.4U CN210967249U (en) | 2019-09-20 | 2019-09-20 | Hydraulic rotary pipe cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210967249U true CN210967249U (en) | 2020-07-10 |
Family
ID=71447222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921565557.4U Expired - Fee Related CN210967249U (en) | 2019-09-20 | 2019-09-20 | Hydraulic rotary pipe cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210967249U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372055A (en) * | 2020-11-30 | 2021-02-19 | 常德市振东机械有限公司 | Cutting positioner is assembled to platform pull rod for tower crane |
| CN113523415A (en) * | 2021-07-26 | 2021-10-22 | 浙江龙华工具有限公司 | Adjustable cutting knife rest of threading machine |
| CN113547170A (en) * | 2021-08-27 | 2021-10-26 | 陈南 | Pipe cutting machine is used in production of new forms of energy lithium cell thin wall aluminum hull |
| CN113976994A (en) * | 2021-11-04 | 2022-01-28 | 顾璟汇 | Pipe cutting equipment for building |
-
2019
- 2019-09-20 CN CN201921565557.4U patent/CN210967249U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372055A (en) * | 2020-11-30 | 2021-02-19 | 常德市振东机械有限公司 | Cutting positioner is assembled to platform pull rod for tower crane |
| CN113523415A (en) * | 2021-07-26 | 2021-10-22 | 浙江龙华工具有限公司 | Adjustable cutting knife rest of threading machine |
| CN113547170A (en) * | 2021-08-27 | 2021-10-26 | 陈南 | Pipe cutting machine is used in production of new forms of energy lithium cell thin wall aluminum hull |
| CN113976994A (en) * | 2021-11-04 | 2022-01-28 | 顾璟汇 | Pipe cutting equipment for building |
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Granted publication date: 20200710 Termination date: 20210920 |