CN112388294A - Flaring pipe joint tightening machine - Google Patents
Flaring pipe joint tightening machine Download PDFInfo
- Publication number
- CN112388294A CN112388294A CN202010984058.XA CN202010984058A CN112388294A CN 112388294 A CN112388294 A CN 112388294A CN 202010984058 A CN202010984058 A CN 202010984058A CN 112388294 A CN112388294 A CN 112388294A
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- China
- Prior art keywords
- nut
- joint
- clamping mechanism
- flared tube
- gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a tightening machine for a flared tube joint, which solves the problems of high labor intensity, high rejection rate and low assembly efficiency of manually tightening the flared tube and the joint in the prior art, and comprises a support, a nut clamping mechanism, a joint clamping mechanism and a power mechanism, wherein the nut on one end of the flared tube is fixed by the nut clamping mechanism, the joint is fixed by the joint clamping mechanism, the joint cannot rotate but can move along with the nut in the radial direction, the power mechanism is arranged to drive the nut clamping device to rotate so as to drive the nut to rotate, so that the nut and the joint are tightened, when the tightening pressure of the nut reaches a preset value, the power mechanism stops working, the nut is not tightened any more, the semi-automatic tightening of the flared tube and the joint can be realized, the workload of an operator can be reduced, the assembly efficiency is improved, and the assembly quality is ensured, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of flared tubes, in particular to a tightening machine for a flared tube joint.
Background
The structure of the tightening of the flared steel pipe joint is that the outer conical surface of the joint is in matched contact with the inner conical surface of the flared pipe, and the inner conical surface and the outer conical surface are in pressed contact by rotating a nut on the flared pipe. It is not possible to turn the fitting with a conventional pneumatic tool to tighten the flared fitting. At present, one end of the connector is fixed, and the other end of the connector is sleeved with a stress application rod by an open spanner and is screwed up manually. High requirements on experience and physical strength of operators.
The prior art has the problems that: firstly, because flared tube pipe diameter 42mm, connect and the nut opposite side is 55mm and 60mm respectively, so manual dynamics of screwing up is great, and pure manual twisting intensity of labour is high and inefficiency. Secondly, the matching requirement of the external conical surface of the joint and the internal conical surface of the flared pipe is high, and the manual screwing torque screwing force and the screwing angle cannot reach the standard, so that the subsequent oil leakage condition is often caused.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a tightening machine for a flared tube joint, which can reduce the work intensity of an operator, and can control the torque at the time of tightening a nut by machine operation, thereby preventing the occurrence of oil leakage and the like.
To achieve the above object, the present invention provides a flared tube joint tightener including:
a support;
the nut clamping mechanism is arranged on the support, and a nut is arranged at one end of the flared tube and clamped in the nut clamping mechanism;
the joint clamping mechanism is slidably arranged on the support and used for fixing the joint, and when the joint clamping mechanism slides to a preset position, the joint is connected with the nut;
and the power mechanism is used for providing power for the nut clamping mechanism to drive the nut to be screwed.
According to the flaring pipe joint screwing machine, the joint clamping mechanism comprises the sliding baffle and the sliding plate, the two sides of the middle of the joint are planar, and the two sides of the middle of the joint are respectively attached to one sliding baffle.
According to the tightening machine for the flared pipe joint, the support is provided with the slide way, and two sides of the slide plate are arranged in the slide way.
According to the tightening machine for the flared pipe joint, the power mechanism comprises a hydraulic motor and a transmission mechanism, the transmission mechanism comprises a motor gear, a transmission gear and a footing gear, the hydraulic motor is fixed on the support, the motor gear is fixed on an output shaft of the hydraulic motor, the upper side of the transmission gear is meshed with the motor gear, the lower side of the transmission gear is meshed with the footing gear, and the footing gear is fixed on the support through a rotating shaft.
According to the tightening machine for the flared pipe joint, when the tightening pressure of the nut reaches a preset value, the hydraulic motor and the transmission mechanism stop moving.
According to the tightening machine for the flared pipe joint, the nut clamping mechanism is fixed on the inner ring of the transmission gear through the pin.
According to the tightening machine for the flared pipe joint, the nut clamping mechanism comprises two separable clamping pieces, a limiting hole is formed in the surrounding middle of the two clamping pieces, and the nut is clamped in the limiting hole.
According to the tightening machine for the flared pipe joint, the end, close to the nut, of the joint is provided with the O-shaped ring.
According to the tightening machine for the flared pipe joint, a square flange is arranged at one end, away from the nut, of the flared pipe.
The invention has the following beneficial effects:
1. the operating personnel only need place mounted position department with joint and flaring pipe, can drive the nut automatically through the device and screw up, can reduce operating personnel's working strength in the very big degree, avoids the occupational disease who consequently produces.
2. After the screwing torque of the nut reaches the preset value, the hydraulic motor and the transmission assembly stop moving, so that certain torque of the nut and the joint is guaranteed, and the situation that oil leakage occurs when the joint is too loose is avoided.
3. Adopt mechanical device to screw up nut and joint, can accelerate the speed of screwing up of nut and joint, increase the efficiency of nut and joint assembly every day, and reduce the spoilage that connects, practiced thrift more cost to a certain extent.
4. The nut clamping mechanism comprises two separable clamping pieces, the pin can be pulled out after the clamping pieces are screwed down, the clamping pieces are taken down, the flared tube can be withdrawn from the rear, and the joint is prevented from being clamped.
5. An O-shaped ring is arranged at one end of the joint close to the nut, so that the sealing performance of the joint and the nut can be improved.
Drawings
FIG. 1 is a side view of the overall structure of the present invention;
FIG. 2 is an elevational view of the overall construction of the present invention;
FIG. 3 is a schematic structural view of the nut clamping mechanism of the present invention;
fig. 4 is a schematic view of the flared tube and fitting assembly of the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, a flared tube joint tightener includes:
a support 100, the support 100 being used to provide support for other components.
The nut clamping mechanism 200 is arranged on the support 100, a nut 510 is arranged at one end of the flared tube 500 and clamped in the nut clamping mechanism 200, a square flange 520 is arranged at the other end of the flared tube 500, and the nut clamping mechanism 200 is used for clamping the nut 510 and driving the nut 510 to rotate.
The joint clamping mechanism 300 is slidably arranged on the support 100 and used for fixing the joint 600, when the joint clamping mechanism 300 slides to a preset position, the joint 600 is connected with the nut 510, when the joint 600 is installed, the joint clamping mechanism 300 slides out to facilitate installation of the joint 600, after installation, the joint clamping mechanism 300 slides towards the nut 510 until the joint 600 is connected with the nut 510, wherein the end, connected with the nut 510, of the joint 600 is a threaded end and is used for being screwed in a threaded engagement mode. An O-ring is provided at an end of the joint 600 close to the nut 510, and the O-ring is indispensable for ensuring the sealing property of the joint 600 and the nut 510.
The power mechanism 400 is configured to provide power to the nut clamping mechanism 200 to drive the nut 510 to be screwed, and the power mechanism 400 drives the nut clamping mechanism 200 to rotate and further drive the nut 510 to rotate, in this embodiment, the nut 510 is driven to rotate clockwise, and when the nut 510 rotates clockwise, due to the engagement between the joint 600 and the inner thread of the nut 510, the nut 510 and the joint 600 are screwed together, so as to achieve the assembly of the nut 510 and the joint 600.
The operator just needs to install flared tube 500 and joint to the position after, the starting equipment can, can reduce operating personnel's intensity of labour by a wide margin, also can avoid operating personnel to have used for a long time to tighten nut 510 and cause the occupational disease to.
The connector clamping mechanism 300 comprises two sliding baffles 310 and two sliding plates 320, two sides of the middle of the connector 600 are planar, and two sides of the middle of the connector 600 are respectively attached to one sliding baffle 310, the two sliding baffles 310 are oppositely arranged on the sliding plates 320, and the connector 600 is clamped between the two sliding baffles 310 and the sliding plates 320. Because the two sides of the middle of the joint 600 are planar, and the two sides of the middle are respectively attached to one sliding baffle plate 310, the joint 600 cannot rotate between the two sliding baffle plates 310 and can only move along the opening direction, so that the joint 600 can be prevented from rotating and damaging an O-shaped ring on the joint 600.
The support 100 is provided with a slide rail 110, two sides of the sliding plate 320 are arranged in the slide rail 110, the sliding plate 320 slides in the slide rail 110, and the slide rail 110 also limits the sliding direction of the sliding plate 320, which is equivalent to sliding on a rail.
The power mechanism 400 comprises a hydraulic motor 410 and a transmission mechanism 420, the transmission mechanism 420 comprises a motor gear 421, a transmission gear 422 and a foot gear 423, the hydraulic motor 410 is fixed on the support 100, the motor gear 421 is fixed on an output shaft of the hydraulic motor 410, the upper side of the transmission gear 422 is meshed with the motor gear 421, the lower side of the transmission gear 422 is meshed with the foot gear 423, the foot gear 423 is fixed on the support 100 through a rotating shaft, the hydraulic motor 410 provides power and drives the motor gear 421 to rotate through the output shaft, the transmission gear 422 is driven to rotate by the motor gear 421, wherein the nut clamping mechanism 200 is fixed on the inner ring of the transmission gear 422 through a pin, namely, the transmission gear 422 drives the nut clamping mechanism 200 to rotate and further drives the nut 510 to rotate, and the nut clamping mechanism 200 cannot be fixed through the rotating shaft due to the nut clamping mechanism 200 arranged in the middle of, the foot gear 423 cooperates with the motor gear 421 to restrain the driving gear 422 therebetween without affecting the rotation of the driving gear 422.
The nut clamping mechanism 200 comprises two separable clamping pieces 210, a limiting hole 220 is formed in the middle of the two clamping pieces 210 in a surrounding mode, the nut is clamped in the limiting hole 220, when one end of the flared tube 500 with the nut 510 is installed, the two clamping pieces 210 are wrapped to the side edge of the nut 510, the two clamping pieces 210 are installed on the inner ring of the transmission gear 422 through pins, after the two clamping pieces are screwed down, the pins can be pulled out, the two clamping pieces 210 are respectively taken down, the flared tube 500 moves backwards, limitation of the limiting hole 220 on the joint 600 is avoided, and the square flange 520 cannot pass through the inner ring of the transmission gear 422.
When the screwing pressure of the nut 510 reaches a preset value, the hydraulic motor 410 and the transmission mechanism 420 stop moving, and through experiments, in the embodiment, the preset value is 50kg, that is, when the screwing pressure of the nut 510 reaches 50kg, the hydraulic motor 410 and the transmission mechanism 420 stop moving, the nut clamping mechanism 200 also stops rotating and does not continue to be screwed, and after the nut clamping mechanism stops rotating, the nut 510 and the assembly of the joint 600 can be conveniently disassembled by rotating properly and releasing the pressure. And under this pressure, the very low of joint 600 spoilage, its assembly effect is also better, avoids taking place the oil leak condition between joint 600 and nut 510.
In the above solution, a force sensor may be provided at the side of the nut clamping mechanism 200 for monitoring the pressure when the nut 510 is tightened and controlling the hydraulic motor 410 to be turned off.
In the embodiment, the product percent of pass can reach a very high level through the change of equipment and an assembly process, the inspection can be avoided, the assembly efficiency is greatly improved, and through preliminary budget, the cost of about one thousand and six can be saved in one month by using the standard of 125 machines in a factory, and more cost can also be saved.
The invention provides a tightening machine for a flared tube joint, which is characterized in that a nut clamping mechanism is used for fixing a nut on one end of a flared tube, the joint is fixed by the joint clamping mechanism, so that the joint cannot rotate but can move along with the nut in the radial direction, a power mechanism is arranged for driving the nut clamping device to rotate so as to drive the nut to rotate, so that the nut and the joint are tightened, when the tightening pressure of the nut reaches a preset value, the power mechanism stops working, the nut is not tightened any more, the semi-automatic tightening of the flared tube and the joint can be realized, the workload of an operator can be reduced, the assembly efficiency can be improved, the assembly quality can be ensured, and the cost can be saved.
The technical solutions of the present invention are explained in detail above with reference to the accompanying drawings, and the described embodiments are used to help understanding the idea of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A flared tube joint tightener characterized in that it comprises:
a support;
the nut clamping mechanism is arranged on the support, and a nut is arranged at one end of the flared tube and clamped in the nut clamping mechanism;
the joint clamping mechanism is slidably arranged on the support and used for fixing the joint, and when the joint clamping mechanism slides to a preset position, the joint is connected with the nut;
and the power mechanism is used for providing power for the nut clamping mechanism to drive the nut to be screwed.
2. The tightening machine for the flared tube joint as claimed in claim 1, wherein the joint clamping mechanism comprises a slide plate and a slide plate, wherein both sides of the middle portion of the joint are planar, and both sides of the middle portion of the joint are respectively engaged with one of the slide plates.
3. The flare pipe joint tightening machine according to claim 2, wherein the support is provided with a slide, and both sides of the slide are provided in the slide.
4. The tightening machine for a flared tube joint as claimed in claim 1, wherein the power mechanism comprises a hydraulic motor and a transmission mechanism, the transmission mechanism comprises a motor gear, a transmission gear and a foot gear, the hydraulic motor is fixed on the support, the motor gear is fixed on an output shaft of the hydraulic motor, an upper side of the transmission gear is engaged with the motor gear, a lower side of the transmission gear is engaged with the foot gear, and the foot gear is fixed on the support through a rotating shaft.
5. The flare pipe joint tightening machine according to claim 4, wherein the hydraulic motor and the transmission mechanism stop moving when a pressure at which the nut is tightened reaches a preset value.
6. The flare pipe joint tightening machine according to claim 4, wherein the nut clamping mechanism is fixed to the transmission gear inner race by a pin.
7. The flared tube joint tightener of claim 6, wherein the nut clamping mechanism comprises two separable clamping members, the two clamping members enclosing a limiting hole formed therebetween, and the nut being engaged in the limiting hole.
8. The flare pipe joint tightening machine according to claim 1, wherein an O-ring is provided on an end of the joint adjacent to the nut.
9. The tightening machine for a flared tube joint as claimed in claim 1, wherein a square flange is provided on an end of the flared tube remote from the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010984058.XA CN112388294A (en) | 2020-09-18 | 2020-09-18 | Flaring pipe joint tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010984058.XA CN112388294A (en) | 2020-09-18 | 2020-09-18 | Flaring pipe joint tightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112388294A true CN112388294A (en) | 2021-02-23 |
Family
ID=74596337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010984058.XA Pending CN112388294A (en) | 2020-09-18 | 2020-09-18 | Flaring pipe joint tightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112388294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184366A (en) * | 2021-12-02 | 2022-03-15 | 成都飞机工业（集团）有限责任公司 | Guide pipe, outer sleeve nut and pipe joint assembly error test bed |
| CN115070400A (en) * | 2022-06-21 | 2022-09-20 | 大连理工大学 | Universal tightening tool for flared pipe joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0226933A1 (en) * | 1985-12-12 | 1987-07-01 | Communaute Europeenne De L'energie Atomique (Euratom) | Tool for tightening and slackening of a pipe joint |
| CN204094449U (en) * | 2014-09-26 | 2015-01-14 | 浙江海洋学院 | A kind of nutting mechanism |
| KR101673117B1 (en) * | 2016-07-15 | 2016-11-16 | 천성민 | Nut Combination Apparatus of Air Conditioner Pipe |
| CN208854129U (en) * | 2018-09-30 | 2019-05-14 | 上海旭虹精密模具制造有限公司 | Connector tightening device |
| CN110744295A (en) * | 2019-12-04 | 2020-02-04 | 上海克来机电自动化工程股份有限公司 | Automatic screwing mechanism |
-
2020
- 2020-09-18 CN CN202010984058.XA patent/CN112388294A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0226933A1 (en) * | 1985-12-12 | 1987-07-01 | Communaute Europeenne De L'energie Atomique (Euratom) | Tool for tightening and slackening of a pipe joint |
| CN204094449U (en) * | 2014-09-26 | 2015-01-14 | 浙江海洋学院 | A kind of nutting mechanism |
| KR101673117B1 (en) * | 2016-07-15 | 2016-11-16 | 천성민 | Nut Combination Apparatus of Air Conditioner Pipe |
| CN208854129U (en) * | 2018-09-30 | 2019-05-14 | 上海旭虹精密模具制造有限公司 | Connector tightening device |
| CN110744295A (en) * | 2019-12-04 | 2020-02-04 | 上海克来机电自动化工程股份有限公司 | Automatic screwing mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184366A (en) * | 2021-12-02 | 2022-03-15 | 成都飞机工业（集团）有限责任公司 | Guide pipe, outer sleeve nut and pipe joint assembly error test bed |
| CN115070400A (en) * | 2022-06-21 | 2022-09-20 | 大连理工大学 | Universal tightening tool for flared pipe joint |
| CN115070400B (en) * | 2022-06-21 | 2023-09-22 | 大连理工大学 | Universal screwing tool for flaring pipe joint |
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