CN115532954A - Hydraulic pipe fitting necking sealing device and method - Google Patents
Hydraulic pipe fitting necking sealing device and method Download PDFInfo
- Publication number
- CN115532954A CN115532954A CN202211534035.4A CN202211534035A CN115532954A CN 115532954 A CN115532954 A CN 115532954A CN 202211534035 A CN202211534035 A CN 202211534035A CN 115532954 A CN115532954 A CN 115532954A
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- necking
- mould
- pole shoe
- clamping fixture
- upper cover
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- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 47
- 239000010949 copper Substances 0.000 claims abstract description 47
- 238000005303 weighing Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000003068 static effect Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model provides a hydraulic pipe ware piece throat sealing device and method, belongs to pipe fitting processing technology field, throat sealing device includes upper cover, mould pillar, weighing sensor, the upper cover links to each other with application of force mechanism, the mould is arranged in mould pillar top, be equipped with the cambered surface recess that is used for the pole shoe throat to warp on the mould, be equipped with the through-hole that supplies the copper pipe to pass on the mould, be equipped with the counter bore that supplies the copper pipe to place on the mould pillar, the counter bore bottom of mould pillar is equipped with reset spring, mould pillar bottom and weighing sensor butt. According to the invention, the clamping fixture with the cambered surface groove is arranged, and the cambered surface groove limits the necking track of the outer wall of the pole shoe, so that the pole shoe is coated and sealed by the force applied by the upper cover along the radial necking of the cambered surface groove, the coated necking assembly of the pipe fitting to be sealed is realized in a mechanical necking deformation mode, the assembly efficiency can be improved, and the sealing effect is ensured.
Description
Technical Field
The invention belongs to the technical field of pipe fitting processing, and particularly relates to a hydraulic pipe fitting necking sealing device and method.
Background
The hydraulic tube device mainly comprises a pole shoe, a copper tube, liquid and the like, wherein the liquid arranged in the copper tube plays a damping role and is of great importance to the time delay performance of the hydraulic tube device, so that the prevention of liquid leakage is one of key technologies for assembling the hydraulic tube device.
The key of the sealing technology of the hydraulic tube device is the assembly between the pole shoe and the copper tube, and at present, the sealing of the pole shoe and the copper tube is assembled in two modes, namely resistance welding and laser welding. When resistance welding is adopted, the sealing effect is difficult to meet the expectation due to the influence of uneven current density distribution of a welding area; when laser welding is adopted, the consistency of the sealing effect and the quality is limited by the comprehensive matching of parameters such as laser output power, welding speed, surface state of a test piece and the like, and the actual verification effect is insufficient. Therefore, the two modes are difficult to ensure better sealing effect and quality stability.
Disclosure of Invention
In view of the defects and shortcomings of the prior art, the invention provides a hydraulic pipe fitting necking sealing device and a hydraulic pipe fitting necking sealing method.
In order to achieve the purpose, the invention adopts the main technical scheme that:
the utility model provides a hydraulic pressure pipe ware piece throat sealing device, hydraulic pressure pipe ware includes pole piece, copper pipe, throat sealing device includes upper cover, mould pillar, weighing sensor, the upper cover links to each other with application of force mechanism, mould pillar top is arranged in to the mould, be equipped with the cambered surface recess that is used for the pole piece throat to warp on the mould, the throat orbit of cambered surface recess restriction pole piece outer wall, the pole piece receives the upper cover application of force outer edge to wrap up the copper pipe along the radial throat of cambered surface recess sealedly, be equipped with the through-hole that supplies the copper pipe to pass on the mould, be equipped with the counter bore that supplies the copper pipe to place on the mould pillar, the counter bore bottom of mould pillar is equipped with reset spring, mould pillar bottom and weighing sensor butt, weighing sensor links to each other with the pressure display for the pressure of monitoring throat sealing process. The upper cover is driven to be pressed with the clamping fixture through the force application mechanism, so that the pole shoe and the copper pipe necking are assembled in a sealing mode, the assembly efficiency can be improved, the sealing effect is guaranteed, the return spring enables the copper pipe to be tightly matched with the pole shoe, and the necking sealing effect is guaranteed. Through weighing sensor and pressure display, can control the dynamics of sealed assembly, guarantee the product quality after the assembly, wherein reset spring makes copper pipe and pole shoe closely cooperate, has guaranteed the sealed effect of throat.
Further, the force application mechanism comprises a lead screw, a movable die and a static die, the lead screw is movably connected with the frame mechanism, the bottom of the lead screw is abutted against the top of the movable die, and the static die is arranged at the bottom of the weighing sensor. The mode of applying force by the screw rod, the movable die and the static die is adopted, the assembly efficiency is improved, the sealing effect is ensured, and the mode of applying force by the screw rod is beneficial to controlling the necking feed amount.
Furthermore, the movable die is provided with a limiting sleeve for limiting the screw rod, so that the screw rod is not easy to shift when the bottom of the movable die rotates.
Further, the frame mechanism comprises a base, a lifting column and a cross beam, the bottom of the lifting column is fixedly connected with the base, one side of the cross beam is connected with the lifting column, and a lead screw nut matched with a lead screw is arranged on one side, away from the lifting column, of the cross beam, so that the stability of the lead screw for the force application of the movable mold is ensured.
Further, be equipped with stop gear between movable mould and the quiet mould, stop gear is including setting up the guide rail between movable mould and quiet mould, the movable mould runs through to set up on the guide rail, and the guide rail top is equipped with the stop screw that prevents movable mould and guide rail and break away from, and the guide rail outside of movable mould below is equipped with supporting spring, makes movable mould steady movement, and then guarantees the stability of pole shoe and copper pipe throat seal assembly to help the automatic re-setting of movable mould, realize that the hydraulic pressure tube device carries out the throat assembly repeatedly.
Further, weighing sensor sets up in the fixed cover of sensor, the fixed cover sliding connection of sensor has the sensor upper cover, sensor upper cover top links to each other with the mould pillar, sensor upper cover bottom and weighing sensor butt.
The necking sealing method of the hydraulic tube device adopting the device comprises the following steps:
the method comprises the following steps: placing the mould on a mould support, and connecting a weighing sensor with a pressure display;
step two: inserting a copper pipe to be subjected to necking assembly into a clamping fixture and a clamping fixture support, and placing a pole shoe to be subjected to necking assembly on the copper pipe;
step three: rotating the screw rod to enable the movable die to move downwards, enabling the upper cover to contact the pole shoe firstly, slowly rotating the screw rod after the pole shoe approaches the mould, and observing the numerical value of the pressure display;
step four: when the numerical value of the pressure display reaches the designated necking pressure, the screw rod stops rotating;
step five: the screw rod is rotated reversely, the movable die is reset to the initial position, and the copper tube and the pole shoe are assembled into a hydraulic tube device which is bounced to the initial position under the action of the reset spring;
step six: and taking out the assembled hydraulic pipe device.
The invention has the beneficial effects that:
1. according to the necking sealing device for the hydraulic pipe device, the clamping fixture with the cambered surface groove is arranged, the cambered surface groove limits the necking track of the outer wall of the pole shoe, the pole shoe is enabled to be wrapped and sealed along the radial necking of the cambered surface groove by the force applied by the upper cover, the wrapped necking assembly of a pipe fitting to be sealed is realized in a mechanical necking deformation mode, the upper cover applies force through the force applying mechanism to drive the upper cover to be pressed with the clamping fixture, the pole shoe and the copper pipe are enabled to be sealed and assembled, the assembly efficiency can be improved, and the sealing effect is ensured.
2. The bottom of a counter bore of a mould pillar is provided with a return spring, and the purpose is to keep an interaction force between a copper pipe and a pole shoe in the process of sealing a necking, so that necking of the pole shoe is realized, the copper pipe is prevented from sinking under the influence of gravity, necking assembly cannot be realized by the pole shoe, the return spring provides contact pre-pressure between pipe fittings to be subjected to necking, and the quality of necking assembly is ensured.
3. The hydraulic pipe device necking sealing device is characterized in that a weighing sensor connected with a pressure display is arranged at the bottom of the necking mechanism, so that necking pressure can be monitored and fed back to the output pressure of a lead screw, and the consistency of the assembly sealing quality is ensured.
4. The necking sealing device of the hydraulic pipe device outputs necking pressure in a rotary screw rod mode, and is beneficial to controlling the feeding amount of necking.
5. According to the necking sealing device for the hydraulic tube device, the limiting mechanism with the supporting spring is arranged between the movable die and the static die, so that the movable die can stably move, the automatic resetting of the movable die is facilitated, and the repeated necking assembly of the hydraulic tube device is realized.
6. The necking sealing device for the hydraulic pipe device can perform necking assembly on the hydraulic pipe devices with different diameters by adjusting the size of the clamping fixture, wherein the return spring enables the copper pipe to be tightly matched with the pole shoe, so that the necking sealing effect is ensured.
Drawings
FIG. 1 is a schematic structural view of a necking sealing device of a hydraulic tube device according to the present invention;
FIG. 2 is a schematic structural view of the assembly of the movable mold, the stationary mold, the limiting mechanism and the necking mechanism;
FIG. 3 is a schematic top view of the structure of FIG. 2;
FIG. 4 isbase:Sub>A sectional view A-A of FIG. 3;
FIG. 5 is a front view of the necking mechanism;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
fig. 7 is a schematic structural diagram of a hydraulic tube device.
The components in the figure: the device comprises a lifting column 1, a cross beam 2, a screw 3, a copper tube 4, a pressure display 5, a base 6, a stud 7, a static die 8, a sensor fixing sleeve 9, a clamping fixture support 10, a guide rail 11, a clamping fixture 12, a supporting spring 13, a movable die 14, a lead screw 15, a lead screw nut 16, a limiting sleeve 17, a limiting screw 18, a weighing sensor 19, a pole shoe 20, an upper cover 21, a return spring 22, a sensor upper cover 23, a hydraulic tube device 24 and a cambered groove 25.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The invention provides a necking sealing device for a hydraulic pipe device. In the necking mechanism, necking deformation of the pole shoe is realized under the action of the upper cover and the clamping fixture, and meanwhile, a flanging part of the copper pipe is wrapped to realize sealing assembly.
As shown in fig. 6, the hydraulic pipe fitting necking sealing device of the present invention includes a pole shoe 20 and a copper pipe 4, the necking sealing device includes an upper cover 21, a mold 12, a mold support 10 and a weighing sensor 19, the upper cover 21 is connected to a force application mechanism, the mold 12 is disposed on the top of the mold support 10, the mold 12 is provided with an arc groove 25 for necking deformation of the pole shoe 20, the arc groove 25 limits a necking track of an outer wall of the pole shoe 20, the pole shoe 20 is forced by the upper cover 21 to radially shrink along the arc groove 25 to wrap and seal a flanging portion of the copper pipe 4, so as to achieve mechanical sealing assembly. The upper cover 21 applies force through the force application mechanism to drive the upper cover to be pressed with the mould, so that the pole shoe and the copper pipe necking are assembled in a sealing mode, the assembly efficiency can be improved, and the sealing effect is guaranteed. The through hole that supplies copper pipe 4 to pass is equipped with on the mould 12, is equipped with the counter bore that supplies copper pipe 4 to place on the mould pillar 10, the counter bore bottom of mould pillar 10 is equipped with reset spring 22, and reset spring makes copper pipe and pole piece closely cooperate, has guaranteed the sealed effect of throat, and its purpose is at the sealed in-process of throat, keeps the mutual effort between copper pipe 4 and the pole piece 20, realizes the throat to pole piece 20, avoids copper pipe 4 to receive the influence of gravity to sink, makes pole piece 20 can't realize the throat assembly. In order to control the force of the sealing assembly and ensure the consistency of the assembly sealing quality, as shown in fig. 2-4, the bottom of the mould pillar 10 is abutted against a weighing sensor 19, the weighing sensor 19 is connected with a pressure display 5 and used for monitoring the pressure in the necking sealing process, and the force of the sealing assembly can be controlled through the weighing sensor and the pressure display to ensure the quality of the assembled product.
During assembly, the copper pipe 4 is arranged in a through groove of the clamping fixture 12 and the clamping fixture support column 10, the bottom of the copper pipe 4 is abutted to the reset spring 22, the pole shoe 20 is arranged at the top of the copper pipe 4, after the copper pipe 4 is tightly attached to the pole shoe 20, under the action of the force application mechanism, the upper cover 21 moves towards the clamping fixture 12 and the clamping fixture support column 10, after the lower edge of the pole shoe 20 contacts the clamping fixture 12, the pole shoe 20 is wrapped and sealed along the radial necking of the cambered surface groove 25 by the outer edge of the force applied by the upper cover 21 to the flanging part of the copper pipe 4, and mechanical sealing assembly is achieved. The device can improve the assembly efficiency and ensure the sealing effect. As shown in fig. 7, the hydraulic tube device 24 is an assembly of the pole piece 20 and the copper tube 4 after necking.
As shown in fig. 1, 2 and 4, the weighing sensor 19 is disposed in the sensor fixing sleeve 9, the bottom of the sensor fixing sleeve 9 is connected to the base 6, the sensor fixing sleeve 9 is slidably connected with a sensor upper cover 23, and the sensor upper cover 23 can move up and down along the inside of the sensor fixing sleeve 9. The sensor upper cover 23 is provided with a groove for placing the clamping fixture support column 10. The top of the sensor upper cover 23 is abutted against the bottom of the clamping fixture support column 10, and the bottom of the sensor upper cover 23 is abutted against the weighing sensor 19. Through weighing sensor 19 and pressure display 5, can control the dynamics of sealed assembly, guarantee the product quality after the assembly.
Specifically, the force application mechanism comprises a lead screw 15, a movable die 14 and a static die 8, the lead screw 15 is movably connected with the frame mechanism, the bottom of the lead screw 15 is abutted to the top of the movable die 14, and the static die 8 is arranged at the bottom of a weighing sensor 19. The invention adopts the force application mode of the lead screw to be beneficial to controlling the feeding amount of the necking. The frame mechanism includes base 6, lift post 1, crossbeam 2, 1 bottom of lift post is fixed continuous with base 6, one side of crossbeam 2 links to each other with lift post 1, and one side that lift post 1 was kept away from to crossbeam 2 is equipped with 15 complex lead screw nuts 16 of lead screw, guarantees the stability of lead screw to the movable mould application of force. Specifically, a screw 3 penetrates through the side surface of the cross beam 2 close to the lifting column 1, and the screw 3 is screwed down to be abutted against the surface of the lifting column 1 so as to position the cross beam 2; the position of the beam 2 can be adjusted up and down by loosening the screw 3. The invention adopts the force application mode of the screw rod 15, the movable die 14 and the static die 8, improves the assembly efficiency, ensures the sealing effect, and is beneficial to controlling the necking feed amount by adopting the force application mode of the screw rod. More specifically, in order to prevent the position of the screw from shifting during the process of applying force to the screw, as shown in fig. 1, a stop collar 17 for limiting the position of the screw 15 is provided on the movable die 14, so that the position of the screw 15 is not easily shifted when the bottom of the movable die 14 rotates.
In order to enable the movable die 14 to stably move, a limiting mechanism is arranged between the movable die 14 and the static die 8, the limiting mechanism comprises a guide rail 11 arranged between the movable die 14 and the static die 8, the movable die 14 is arranged on the guide rail 11 in a penetrating mode, a limiting screw 18 for preventing the movable die 14 from being separated from the guide rail 11 is arranged at the top of the guide rail 11, a supporting spring 13 is arranged outside the guide rail 11 below the movable die 14, the movable die is enabled to stably move, automatic resetting of the movable die is facilitated, and repeated necking assembly of hydraulic pipe devices is achieved.
The invention also provides a method for sealing the necking of the hydraulic pipe device, and the necking sealing device of the hydraulic pipe device is adopted to carry out necking sealing on the hydraulic pipe device 24. The method specifically comprises the following steps:
the method comprises the following steps: placing a mould 12 on a mould support 10, and connecting a weighing sensor 19 with a pressure display 5;
step two: inserting a copper pipe to be subjected to necking assembly into a clamping fixture 12 and a clamping fixture support 10, and placing a pole shoe 20 to be subjected to necking assembly on the copper pipe 4 to keep stable placement;
step three: rotating the screw rod 15 to enable the movable die 14 to move downwards, enabling the upper cover 21 to contact the pole shoe 20 firstly, slowly rotating the screw rod 15 after the pole shoe 20 approaches the mould 12, and observing the numerical value of the pressure display 5;
step four: when the numerical value of the pressure display 5 reaches the designated necking pressure, stopping rotating the screw rod 15, and stabilizing the pressure for 2s;
step five: the screw rod 15 is rotated reversely, the movable die 14 is reset to the initial position under the acting force of the supporting spring 13, and the copper tube 4 and the pole shoe 20 are assembled into a hydraulic tube device 24 which is bounced to the initial position under the action of the reset spring 22;
step six: the assembled hydraulic tube device 24 is removed.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present invention and that those skilled in the art may make modifications, alterations, substitutions and alterations to the above embodiments within the scope of the present invention.
Claims (7)
1. A throat sealing device for a hydraulic pipe device, the hydraulic pipe device comprises a pole shoe (20) and a copper pipe (4), and is characterized in that: the necking sealing device comprises an upper cover (21), a clamping fixture (12), a clamping fixture support column (10) and a weighing sensor (19), wherein the upper cover (21) is connected with a force application mechanism, the top of the clamping fixture support column (10) is arranged in the clamping fixture (12), a cambered surface groove (25) used for deformation of a necking of a pole shoe (20) is arranged on the clamping fixture (12), the cambered surface groove (25) limits a necking track of the outer wall of the pole shoe (20), the pole shoe (20) is sealed by wrapping a copper pipe (4) along a radial necking of the cambered surface groove (25) under the action of force applied by the upper cover (21), a through hole for the copper pipe (4) to pass is formed in the clamping fixture (12), a counter bore for the copper pipe (4) to be placed is formed in the clamping fixture support column (10), a reset spring (22) is arranged at the bottom of the counter bore of the clamping fixture support column (10), the bottom of the clamping fixture support column (10) is connected with the weighing sensor (19), and the weighing sensor (19) is connected with a pressure display (5) in a butt joint mode for monitoring the pressure of the necking sealing process.
2. A hydraulic tube element throat seal according to claim 1 wherein: the force application mechanism comprises a lead screw (15), a movable die (14) and a static die (8), the lead screw (15) is movably connected with the frame mechanism, the bottom of the lead screw (15) is abutted to the top of the movable die (14), and the static die (8) is arranged at the bottom of the weighing sensor (19).
3. A hydraulic tube element throat seal according to claim 2 wherein: and a limiting sleeve (17) used for limiting the screw rod (15) is arranged on the movable die (14).
4. A hydraulic tubing throat seal according to claim 2 wherein: the frame mechanism comprises a base (6), a lifting column (1) and a cross beam (2), wherein the bottom of the lifting column (1) is fixedly connected with the base (6), one side of the cross beam (2) is connected with the lifting column (1), and one side, away from the lifting column (1), of the cross beam (2) is provided with a lead screw nut (16) matched with a lead screw (15).
5. A hydraulic tube element throat seal according to claim 2 wherein: be equipped with stop gear between movable mould (14) and quiet mould (8), stop gear is including setting up guide rail (11) between movable mould (14) and quiet mould (8), movable mould (14) run through to set up on guide rail (11), and guide rail (11) top is equipped with stop screw (18) that prevent movable mould (14) and guide rail (11) and break away from, and guide rail (11) outside of movable mould (14) below is equipped with supporting spring (13).
6. A hydraulic tube element throat seal according to claim 1 wherein: weighing sensor (19) set up in the fixed cover of sensor (9), sliding connection has sensor upper cover (23) in the fixed cover of sensor (9), sensor upper cover (23) top links to each other with mould pillar (10), sensor upper cover (23) bottom and weighing sensor (19) butt.
7. A method of necking a hydraulic tube device using the apparatus according to any one of claims 1 to 6, wherein: the method comprises the following steps:
the method comprises the following steps: placing a mould (12) on a mould support (10), and connecting a weighing sensor (19) with a pressure display (5);
step two: inserting a copper pipe to be subjected to necking assembly into a clamping fixture (12) and a clamping fixture support (10), and placing a pole shoe to be subjected to necking assembly on the copper pipe;
step three: rotating the screw rod (15), moving the movable die (14) downwards, contacting the pole shoe by the upper cover (21) firstly, slowly rotating the screw rod (15) after the pole shoe approaches the clamping fixture (12), and observing the numerical value of the pressure display (5);
step four: when the numerical value of the pressure display (5) reaches the designated necking pressure, the screw rod (15) stops rotating;
step five: the screw rod (15) is rotated reversely, the movable die (14) is reset to the initial position, and the copper tube and the pole shoe are assembled into a hydraulic tube device which is bounced to the initial position under the action of the reset spring (22);
step six: and taking out the assembled hydraulic pipe device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211534035.4A CN115532954A (en) | 2022-12-02 | 2022-12-02 | Hydraulic pipe fitting necking sealing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211534035.4A CN115532954A (en) | 2022-12-02 | 2022-12-02 | Hydraulic pipe fitting necking sealing device and method |
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| CN115532954A true CN115532954A (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211534035.4A Pending CN115532954A (en) | 2022-12-02 | 2022-12-02 | Hydraulic pipe fitting necking sealing device and method |
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| CN209756197U (en) * | 2019-01-04 | 2019-12-10 | 新昌县云大农业有限公司 | press that security performance is high |
| CN209813127U (en) * | 2018-10-15 | 2019-12-20 | 百艺工坊(北京)科技文化有限公司 | Screw press |
| CN210280437U (en) * | 2019-06-25 | 2020-04-10 | 天津市华顺通阀门有限公司 | Plug-in all-welded ball valve necking processing equipment |
| CN215849797U (en) * | 2021-09-16 | 2022-02-18 | 山东茶之恋杯业有限公司 | Manual press for processing tea-water separation cup |
| CN114309336A (en) * | 2021-12-08 | 2022-04-12 | 象山宝航矿业有限公司 | Protection device for preventing damage of press machine during unlocking operation after contact |
| CN115255163A (en) * | 2022-07-15 | 2022-11-01 | 同济大学 | Heating plastic connection processing method of metal thin-walled tubes with different diameters |
| CN115255164A (en) * | 2022-08-03 | 2022-11-01 | 沈阳铁路信号有限责任公司 | Necking seal assembly method of precision hydraulic pipe |
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2022
- 2022-12-02 CN CN202211534035.4A patent/CN115532954A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1363060A2 (en) * | 1996-10-07 | 2003-11-19 | Universal Tubular Systems, Inc. | Conduit connector and method |
| CN204817753U (en) * | 2015-06-09 | 2015-12-02 | 江西铜业股份有限公司 | Pipe throat ware for press |
| WO2016205846A1 (en) * | 2015-06-23 | 2016-12-29 | Henn Gmbh & Co Kg. | Method for calculating a usage figure for a pressing tool in a joining press |
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| CN210280437U (en) * | 2019-06-25 | 2020-04-10 | 天津市华顺通阀门有限公司 | Plug-in all-welded ball valve necking processing equipment |
| CN215849797U (en) * | 2021-09-16 | 2022-02-18 | 山东茶之恋杯业有限公司 | Manual press for processing tea-water separation cup |
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| CN115255163A (en) * | 2022-07-15 | 2022-11-01 | 同济大学 | Heating plastic connection processing method of metal thin-walled tubes with different diameters |
| CN115255164A (en) * | 2022-08-03 | 2022-11-01 | 沈阳铁路信号有限责任公司 | Necking seal assembly method of precision hydraulic pipe |
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Application publication date: 20221230 |