CN111673672B - Automatic assembly device and assembly method thereof - Google Patents
Automatic assembly device and assembly method thereof Download PDFInfo
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- CN111673672B CN111673672B CN202010571316.1A CN202010571316A CN111673672B CN 111673672 B CN111673672 B CN 111673672B CN 202010571316 A CN202010571316 A CN 202010571316A CN 111673672 B CN111673672 B CN 111673672B
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- cylinder
- material taking
- depth
- supporting block
- taking mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Automatic Assembly (AREA)
Abstract
The invention relates to an automatic assembly device and an assembly method thereof, wherein the assembly device comprises a material taking mechanism and a follow-up mechanism, the follow-up mechanism comprises a supporting block with a limit groove, a jacking cylinder for controlling the lifting of the supporting block, a sliding plate fixed at the bottom end of the jacking cylinder, a first sliding rail connected with the bottom of the sliding plate in a sliding way and a spring cylinder for controlling the sliding plate to move along the first sliding rail, and a baffle is arranged at the end, close to the material taking mechanism, of the first sliding rail, and the assembly method comprises the following steps: step S1, moving the head of the depth pipe clamp into a limit groove provided with an inner pipe, and pushing the thimble to extend into the inner pipe; s2, the material taking mechanism pushes the deep pipe clamp to be sleeved with the inner pipe, and the chuck is blocked and held with the outer surface of the supporting block; and S3, the supporting block moves from the position of the baffle to the direction away from the baffle, the material taking mechanism pushes the depth pipe clamp to move along with the supporting block, the inner pipe does not move along with the supporting block, and the material taking mechanism drives the depth pipe clamp to move along with the follow-up mechanism through the follow-up mechanism, so that the head of the depth pipe clamp can be assembled with the inner pipe in place.
Description
Technical Field
The invention relates to the technical field of conveying and assembling, in particular to an automatic assembling device and an assembling method thereof.
Background
With the development of animal husbandry, more and more enterprises are raising pigs, cows, sheep and horses, and more requirements are placed on the number of disposable inseminators of animals, so manufacturers producing inseminators consider adopting automatic equipment to produce as much as possible.
The insemination device has more parts, see fig. 1, and comprises an inner tube 101, an outer tube 102 sleeved outside the inner tube 101, a foam head 103 sleeved at the front end of the outer tube 102, a depth head 104 assembled at the front end of the inner tube 101, a depth pipe clamp 105 sleeved at the tail of the inner tube 101 and a tail pipe 106 assembled at the rear end of the depth pipe clamp 105. The inner tube 101 is longer than the outer tube 102, and both ends of the inner tube 101 extend outward from both ends of the outer tube 102. The outer tube 102 has a hard tube structure which is not easily deformed, and the inner tube 101 has a flexible tube structure which is easily deformed.
The depth tube clamp 105 comprises a head portion 1051, a tail portion 1052 and a chuck 1053 positioned between the head portion 1051 and the tail portion 1052, wherein the head portion 1051 is provided with an axial inner hole, the head portion 1051 is sleeved outside the inner tube 101, and the outer diameter of the inner tube 101 is close to the inner diameter of the head portion 1051, so that the head portion 1051 is provided with expansibility in the sleeving process, and is excessively matched with the inner tube 101, so that assembly failure is caused.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an automatic assembly device with good assembly effect and an assembly method thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic assembly device, its includes the feeding mechanism and is located feeding mechanism rear follower, feeding mechanism includes a plurality of first mechanical tongs and control first mechanical tongs follow-up follower horizontal migration's first cylinder, follower includes the supporting shoe, control the jacking cylinder that the supporting shoe goes up and down, be fixed in the sliding plate of jacking cylinder bottom, with sliding plate bottom sliding connection's first slide rail and control the sliding plate is followed the spring cylinder that first slide rail removed, spring cylinder bottom with first slide rail connection, first slide rail is close to feeding mechanism end is equipped with the baffle, the jacking cylinder be in spring cylinder with slide between the baffle, the supporting shoe upper surface has a plurality of from outside inwards sunken spacing groove, the supporting shoe top is equipped with down the pressure subassembly, the pressure subassembly includes down briquetting and control down the inner tube goes up and down, the briquetting bottom has a plurality of from outside inwards sunken pressure groove and the lower inner tube of pressing down, the pressure groove is used for aligning with the spacing groove.
The pressing assembly further comprises a sliding support frame, a second sliding rail and a second air cylinder, wherein the pressing air cylinder is fixed on the sliding support frame, and the second air cylinder drives the sliding support frame to slide back and forth on the second sliding rail.
The material taking mechanism further comprises a material taking plate, a cam divider arranged at the bottom of the material taking plate and a motor for controlling the cam divider to rotate, wherein first fixing plates are fixed at two ends of the material taking plate, and a plurality of first mechanical grippers are fixed on the two first fixing plates.
The lower end of the cam divider is provided with a supporting frame, a third sliding rail is arranged on the supporting frame, the cam divider is arranged on the third sliding rail in a sliding mode, the cam divider is connected with the first air cylinder, and the first air cylinder drives the cam divider to slide on the third sliding rail.
The first mechanical gripper comprises a clamping block, a plurality of clamping grooves which are recessed from outside to inside are formed in the inner side of the clamping block, ejector pins are arranged in the clamping grooves, and depth pipes are sleeved on the ejector pins in a clamping mode.
The first mechanical gripper further comprises a clamping plate and a clamping cylinder for controlling the clamping plate to approach the clamping groove.
In order to achieve the above purpose, the present invention further provides the following technical solutions: an automated assembly method, comprising:
step S1, a material taking mechanism moves the head of a depth pipe clamp into a limit groove provided with an inner pipe, pushes a thimble to extend into the inner pipe, and the inner pipe is aligned with an inner hole of the head;
s2, the material taking mechanism pushes the deep pipe clamp to be sleeved with the inner pipe, and the chuck is blocked and held with the outer surface of the supporting block with the limiting groove;
s3, the supporting block moves from the position of the baffle to the direction away from the baffle, the material taking mechanism pushes the depth pipe clamp to move along with the supporting block, and the inner pipe does not move along with the supporting block;
in step S3, the support block is lifted through a lifting cylinder, the bottom end of the lifting cylinder is provided with a sliding plate, the bottom of the sliding plate is slidably connected with a first sliding rail, one end of the sliding plate is connected with a spring cylinder, the baffle is arranged at the position, close to the end of the material taking mechanism, of the first sliding rail, the head of the depth pipe clamp completely penetrates into a limit groove, the chuck is blocked and held outside the support block and cannot be assembled with the inner pipe continuously, the spring cylinder drives the sliding plate to move away from the baffle, the support block moves synchronously with the sliding plate, the first cylinder pushes the depth pipe clamp to move along with the support block, the inner pipe moves relatively with the limit groove of the support block, corresponding to the forward movement of the inner pipe in the limit groove, and the head of the depth pipe clamp can be assembled with the inner pipe in place.
In step S1, the material taking mechanism includes a plurality of first mechanical grippers and controls first cylinder of first mechanical gripper horizontal migration, and a plurality of first mechanical grippers snatch vertical arrangement' S degree of depth pipe strap, and the first mechanical gripper that presss from both sides the degree of depth pipe strap upwards overturns 90, and the degree of depth pipe strap adjustment is placed for the level, and the first mechanical gripper that presss from both sides the degree of depth pipe strap rotates 180, and horizontal migration is close to the inner tube.
Compared with the prior art, the invention has the beneficial effects that: the head of degree of depth pipe strap is gone deep into the spacing groove completely, and the chuck keeps off to hold outside the support block can not continue to assemble with the inner tube, the spring cylinder drives the sliding plate keeps away from baffle direction and removes, the support block with the synchronous removal of slip first cylinder promotes degree of depth pipe strap and follows the support block removes, and the relative motion takes place for the spacing groove of inner tube and support block, corresponds to the inner tube and takes place the antedisplacement in the spacing groove, and the head of degree of depth pipe strap can be in place with the inner tube assembly.
Drawings
FIG. 1 is a schematic view of the overall structure of the insemination device of the present invention;
FIG. 2 is a schematic view of the depth pipe clamp of FIG. 1;
FIG. 3 is a schematic view of the whole structure of the automatic assembling device of the present invention;
FIG. 4 is a schematic view of the take-off mechanism of FIG. 3;
FIG. 5 is an enlarged schematic view of the structure of FIG. 3 at A;
FIG. 6 is a schematic view of the reclaimer mechanism and follower mechanism of FIG. 3;
FIG. 7 is an enlarged schematic view of the structure at B in FIG. 6;
fig. 8 is a schematic structural view of the follower mechanism in fig. 6.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention is an automatic assembling device, which includes a feeding mechanism 1, a jacking mechanism 2 disposed at an outlet end of the feeding mechanism 1, a clamping mechanism 3 disposed behind the jacking mechanism 2, a material taking mechanism 4 disposed behind the clamping mechanism 3, and a follower mechanism 5 disposed behind the material taking mechanism 4.
The jacking mechanism 2 is used for jacking the depth pipe clamp to the position below the clamping mechanism 3.
Referring to fig. 3, the gripping mechanism 3 is used to grip a deep pipe clamp placed by the jacking mechanism 2 and translate to the take-out mechanism 4. The material clamping mechanism 3 comprises a second fixing plate 31, a plurality of second mechanical grippers 32 fixed on the second fixing plate 31, a fourth air cylinder 33 connected to the second fixing plate 31, an air cylinder fixing plate 34 for fixing the fourth air cylinder 33 and a fourth sliding rail 35 arranged at the bottom of the air cylinder fixing plate 34 in a sliding manner. The fourth cylinder 33 controls the plurality of second mechanical grips 32 to extend or retract horizontally forward. A plurality of second mechanical grippers 32 grasp the depth pipe clamps transported by the jacking mechanism 2 and interface with the take out mechanism 4.
Referring to fig. 4, the take-out mechanism 4 includes a take-out plate 41, a plurality of first mechanical grippers 42 provided at both ends of the take-out plate 41, a first fixing plate 43 for fixing the plurality of first mechanical grippers 42, a cam divider 44 provided at the bottom of the take-out plate 41, and a motor 45 for controlling the rotation of the cam divider 44. The first mechanical grippers 42 at both ends of the take-out plate 41 are alternately taken out and assembled by rotating 180 °.
Referring to fig. 5, the first mechanical gripper 42 includes a clamping block 421, the inner side of the clamping block 421 is provided with a plurality of clamping grooves 4211 which are recessed from outside to inside, a thimble 42111 is arranged in the clamping groove 4211, and a depth pipe is sleeved on the thimble 42111. In order to prevent the depth pipe from being jammed in the clamping groove 4211, the first mechanical gripper 42 further comprises a clamping plate 422 and a clamping cylinder 423 for controlling the clamping plate 422 to approach the clamping groove 4211.
The second mechanical gripper 32 of the clamping mechanism 3 is used for sleeving the depth pipe clamp 105 outside the thimble 42111, clamping the chuck of the depth pipe clamp outside the clamping groove 4211, exposing the head 1051 of the depth pipe clamp 105 outside the clamping groove 4211, enabling the tail 1052 to go deep into the clamping groove 4211, driving the clamping plate 422 to approach the clamping groove 4211 by the clamping cylinder 423, and clamping the depth pipe clamp 105.
The outer diameter of the thimble 42111 is smaller than the inner diameter of the inner tube, and the outer diameter of the inner tube is smaller than the inner diameter of the head of the depth pipe clamp.
Referring to fig. 4, a support 401 is provided at the lower end of the cam divider 44, a third sliding rail 402 is provided on the support 401, the cam divider 44 is slidably disposed on the third sliding rail 402, one end of the cam divider 44 is connected with a first cylinder 403, and the first cylinder 403 drives the cam divider 44 to slide on the third sliding rail 402.
Referring to fig. 4, the extracting mechanism 4 further includes a fixing frame 46, a rotating plate 47, a rotating cylinder 48 and a third cylinder 49 disposed at two ends of the extracting plate 41. The rotating plate 47 is rotatably connected with the fixing frame 46 through a bearing, and the rotating cylinder 48 controls the rotating plate 47 to turn around the fixing frame 46. And both ends of the material taking plate 41 are respectively provided with a third air cylinder 49 for driving the first mechanical gripper 42 to move up and down relative to the fixing frame 46, one end of the third air cylinder 49 is fixed at the bottom of the rotating plate 47, and the other end of the third air cylinder 49 is connected with the first fixing plate 43.
During material taking, the material taking plate 41 moves towards the direction close to the material clamping mechanism 3, a plurality of first mechanical grippers 42 at one end of the material taking plate 41 grasp depth pipe clamps vertically clamped on a plurality of second mechanical grippers 32, the first mechanical grippers 42 move downwards after material taking, the depth pipe clamps are separated from the second mechanical grippers 32, then the first mechanical grippers 42 clamped with the depth pipe clamps are turned upwards around a fixing frame 46 by 90 degrees, the depth pipe clamps are adjusted to be horizontally placed, a cam divider 44 drives the material taking plate 41 to rotate by 180 degrees, and the depth pipe clamps horizontally fixed on the first mechanical grippers 42 are assembled with inner and outer pipes placed in the follow-up mechanism 5. The plurality of first mechanical grippers 42 at the other end of the take-out plate 41 are close to the clamping mechanism 3 and grip deep pipe clamps vertically placed in the clamping mechanism 3.
Referring to fig. 6 and 8, the follower 5 includes a supporting block 51, a lifting cylinder 52 for controlling the lifting of the supporting block 51, a sliding plate 53 fixed to the bottom end of the lifting cylinder 52, a first sliding rail 54 slidably connected to the bottom of the sliding plate 53, and a spring cylinder 55 connected to one end of the sliding plate 53.
Referring to fig. 7, the upper surface of the supporting block 51 has a plurality of limiting grooves 511 recessed from outside to inside, and the limiting grooves 511 are distributed at equal intervals. Referring to fig. 6, a hold down assembly 57 is provided above the shoe 51. The pressing assembly 57 includes a sliding support frame 571, a pressing block 572 at the lower end of the sliding support frame 571, and a pressing cylinder 573 for controlling the pressing block 572 to rise and fall. The pressing cylinder 573 is fixed to the slide supporting frame 571. The pressing component 57 further comprises a second sliding rail 574 and a second air cylinder 575, and the second air cylinder 575 drives the sliding supporting frame 571 to slide back and forth on the second sliding rail 574.
The bottom surface of the pressing block 572 is provided with a plurality of pressing grooves (not indicated) which are recessed from outside to inside, and the pressing grooves are aligned with the limiting grooves 511 to limit the inner tube, so that bending deformation is prevented from occurring in the assembly process of the pressing block and the depth pipe clamp, and the effect is influenced. Simultaneously, the head of the depth pipe clamp is deeply arranged in the limit groove 511 and assembled with the inner pipe, the thimble 42111 of the first mechanical gripper 42 extends out of the head and is exposed outwards, and the outwards exposed part of the thimble 42111 is deeply arranged in the inner pipe to play a supporting role.
The bottom of the spring cylinder 55 is connected with the first sliding rail 54, the spring cylinder 55 drives the jacking cylinder 52 to slide on the first sliding rail 54, a baffle 541 is arranged at the end, close to the material taking mechanism 4, of the first sliding rail 54, and the jacking cylinder 52 slides between the spring cylinder 55 and the baffle 541.
The automatic assembly method of the present invention comprises:
step S1, a material taking mechanism moves the head of a depth pipe clamp into a limit groove provided with an inner pipe, pushes a thimble to extend into the inner pipe, and the inner pipe is aligned with an inner hole of the head;
wherein the depth tube clamp 105 comprises a head portion 1051, a tail portion 1052 and a chuck 1053 positioned between the head portion 1051 and the tail portion 1052, the head portion 1051 having an axial bore within which an inner tube is sleeved.
S2, the material taking mechanism pushes the deep pipe clamp to be sleeved with the inner pipe, and the chuck is blocked and held with the outer surface of the supporting block; in the step, the head of the depth pipe clamp completely penetrates into the limit groove, and the chuck is blocked outside the supporting block and cannot be assembled with the inner pipe continuously;
and S3, the supporting block moves towards the direction away from the baffle, the material taking mechanism pushes the depth pipe clamp to move along with the supporting block, and the inner pipe does not move along with the supporting block.
In the step, the spring cylinder drives the sliding plate to move away from the baffle, the supporting block moves synchronously along with the sliding, and the first cylinder pushes the depth pipe clamp to move along with the supporting block, so that the inner pipe and the limiting groove of the supporting block move relatively to be assembled in place.
The support block compresses the spring of the spring cylinder in the process of moving away from the baffle, and simultaneously corresponds to the fact that the inner tube moves forward in the limiting groove, and the head of the depth pipe clamp can be assembled with the inner tube in place.
And after the assembly is completed, the spring of the spring cylinder rebounds, and the supporting block moves to the baffle plate to reset.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The automatic assembly device is characterized by comprising a material taking mechanism and a follow-up mechanism arranged behind the material taking mechanism, wherein the material taking mechanism comprises a plurality of first mechanical grippers and a first cylinder for controlling the first mechanical grippers to follow up the follow-up mechanism to horizontally move, the follow-up mechanism comprises a supporting block, a jacking cylinder for controlling the lifting of the supporting block, a sliding plate fixed at the bottom end of the jacking cylinder, a first sliding rail connected with the bottom of the sliding plate in a sliding manner and a spring cylinder for controlling the sliding plate to move along the first sliding rail, the bottom of the spring cylinder is connected with the first sliding rail, a baffle is arranged near the end of the material taking mechanism, the jacking cylinder slides between the spring cylinder and the baffle, a plurality of limiting grooves which are recessed from outside to inside are formed in the upper surface of the supporting block, a pressing assembly is arranged above the supporting block, the pressing assembly comprises a pressing block and a pressing cylinder for controlling the lifting of the pressing block, and the bottom surface of the pressing block is provided with a plurality of inner pipes which are recessed from inside to outside and aligned with the limiting grooves.
2. The automated assembly device of claim 1, wherein the hold down assembly further comprises a slide support, a second slide rail, a second air cylinder, the hold down air cylinder being secured to the slide support, the second air cylinder driving the slide support to slide back and forth on the second slide rail.
3. The automatic assembly device of claim 1, wherein the material taking mechanism further comprises a material taking plate, a cam divider arranged at the bottom of the material taking plate and a motor for controlling the cam divider to rotate, wherein first fixing plates are fixed at two ends of the material taking plate, and a plurality of first mechanical grippers are fixed on the two first fixing plates.
4. The automatic assembly device according to claim 3, wherein the lower end of the cam divider is provided with a supporting frame, a third sliding rail is arranged on the supporting frame, the cam divider is slidably arranged on the third sliding rail, the cam divider is connected with the first cylinder, and the first cylinder drives the cam divider to slide on the third sliding rail.
5. The automatic assembly device according to claim 3, wherein the first mechanical gripper comprises a clamping block, a plurality of clamping grooves recessed from outside to inside are formed in the inner side of the clamping block, ejector pins are arranged in the clamping grooves, and the depth pipe is clamped on the ejector pins.
6. The automated assembly device of claim 5, wherein the first mechanical gripper further comprises a clamping plate and a clamping cylinder that controls the approach of the clamping plate to the clamping groove.
7. An automated assembly method, comprising:
step S1, a material taking mechanism moves the head of a depth pipe clamp into a limit groove provided with an inner pipe, pushes a thimble to extend into the inner pipe, and the inner pipe is aligned with an inner hole of the head;
s2, the material taking mechanism pushes the deep pipe clamp to be sleeved with the inner pipe, and the chuck is blocked and held with the outer surface of the supporting block with the limiting groove;
s3, the supporting block moves from the position of the baffle to the direction away from the baffle, the material taking mechanism pushes the depth pipe clamp to move along with the supporting block, and the inner pipe does not move along with the supporting block;
in step S3, the support block is lifted through a lifting cylinder, the bottom end of the lifting cylinder is provided with a sliding plate, the bottom of the sliding plate is slidably connected with a first sliding rail, one end of the sliding plate is connected with a spring cylinder, the baffle is arranged at the position, close to the end of the material taking mechanism, of the first sliding rail, the head of the depth pipe clamp completely penetrates into a limit groove, the chuck is blocked and held outside the support block and cannot be assembled with the inner pipe continuously, the spring cylinder drives the sliding plate to move in the direction away from the baffle, the support block moves synchronously with the sliding plate, and simultaneously, the first cylinder pushes the depth pipe clamp to move along with the support block, the inner pipe moves relatively with the limit groove of the support block, which is equivalent to the forward movement of the inner pipe in the limit groove, and the head of the depth pipe clamp can be assembled with the inner pipe in place.
8. The automated assembly method of claim 7, wherein: in step S1, the material taking mechanism includes a plurality of first mechanical grippers and controls first cylinder of first mechanical gripper horizontal migration, and a plurality of first mechanical grippers snatch vertical arrangement' S degree of depth pipe strap, and the first mechanical gripper that presss from both sides the degree of depth pipe strap upwards overturns 90, and the degree of depth pipe strap adjustment is placed for the level, and the first mechanical gripper that presss from both sides the degree of depth pipe strap rotates 180, and horizontal migration is close to the inner tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010571316.1A CN111673672B (en) | 2020-06-22 | 2020-06-22 | Automatic assembly device and assembly method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010571316.1A CN111673672B (en) | 2020-06-22 | 2020-06-22 | Automatic assembly device and assembly method thereof |
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| CN111673672A CN111673672A (en) | 2020-09-18 |
| CN111673672B true CN111673672B (en) | 2023-06-09 |
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| US3978575A (en) * | 1975-06-18 | 1976-09-07 | The Upjohn Company | Method and device for extracting filter frits from liquid chromatographic columns |
| US5228182A (en) * | 1992-01-06 | 1993-07-20 | Hart Arthur J | Axle housing repair apparatus and method for replacing a vehicle axle tube assembly |
| CN208409061U (en) * | 2018-05-29 | 2019-01-22 | 汕头市全方位机械有限公司 | A kind of inclined tube rotary positioning apparatus |
| CN208946052U (en) * | 2018-10-24 | 2019-06-07 | 快克智能装备股份有限公司 | A kind of equipment for assembling inner sheath |
| CN210282122U (en) * | 2019-06-10 | 2020-04-10 | 中国石油天然气股份有限公司 | Ejector |
| CN110239014A (en) * | 2019-06-12 | 2019-09-17 | 天津市宇刚保温建材有限公司 | Heat preservation pipe prefabricated production poling machine and its application method |
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