CN112160955A - Synchronous fastening device and method for annular clamp - Google Patents

Synchronous fastening device and method for annular clamp Download PDF

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Publication number
CN112160955A
CN112160955A CN202010962574.2A CN202010962574A CN112160955A CN 112160955 A CN112160955 A CN 112160955A CN 202010962574 A CN202010962574 A CN 202010962574A CN 112160955 A CN112160955 A CN 112160955A
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China
Prior art keywords
clamp
base
sliding block
flexible
semicircular
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CN202010962574.2A
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CN112160955B (en
Inventor
何磊
唐健钧
曹虎
钟学敏
夏清鹰
谭与龙
龙良刚
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00Friction-grip releasable fastenings
    • F16B2/20Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B1/00Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F16B1/02Means for securing elements of mechanisms after operation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention provides a synchronous fastening device of an annular hoop and a fastening method thereof.A base is arranged at the central position of a second semicircular hoop, a sliding block is connected with the base through a moving mechanism, and is far away from or close to the base through the moving mechanism; two flexible bands are fixed respectively in the both sides of sliding block, and the other end of flexible band is connected with two buckles respectively, and two buckles set up the outside at first semicircle clamp tip respectively. Driving the sliding block to be far away from the base, and gradually tensioning the flexible binding belt; the tensioned flexible bridle drives the first semicircular clamp to gradually clamp towards the second semicircular clamp; and then the two clamp fastening bolts are screwed down. The invention avoids the rotation displacement deviation in the installation process of the annular hoop and ensures the installation precision of the annular hoop.

Description

Synchronous fastening device and method for annular clamp
Technical Field
The invention belongs to a fastening device, in particular to a synchronous fastening device of an annular hoop and a fastening method thereof, which are mainly applied to the synchronous fastening requirement in the high-precision assembly process of the annular hoop.
Background
Annular clamps are widely used as a reliable connection means for fixing wire harnesses, pipelines and parts. The assembly of a large number of annular clamps is involved in aircrafts, spacecraft, ships and vehicles. The common connection modes of the annular clamp are bolt connection, threaded connection, quick-release buckle connection and the like. The bolt connection and the thread connection are mainly characterized in that fastening points are arranged at the joint of two semicircular hoops, and a manual or automatic tool is used for screwing the bolt or the thread, so that the hoops are fastened. The quick release buckle connection is provided with a fastening point only at one end, and the other end is generally connected by a shaft. The quick release buckle connection is mainly applied to areas needing frequent disassembly and cannot bear larger load. The bolt connection and the threaded connection can bear larger load, and the connection is stable and reliable and has wider application.
When using bolted connection and threaded connection, because the fastening point of clamp generally has two, is located the both ends of semi-circular clamp, when assembling, generally need screw up the fastening point of one end earlier, screws up the fastening point of the other end again, because fastening process's desynchrony, during the fastening one end, cause the axial rotary displacement of clamp easily, when the fastening other end, this kind of rotary displacement deviation also can not obtain the compensation. On the occasion that has the requirement to the clamp installation accuracy, above-mentioned fastening mode can't satisfy the assembly requirement, needs measurement adjustment repeatedly usually, very big reduction the installation effectiveness.
In the fields of automobile and engine assembly and the like, in order to overcome the defects, researchers invent a bolt synchronous tightening device, and the basic principle of the bolt synchronous tightening device is that devices such as a servo motor and a hydraulic motor are adopted to control the tightening of a bolt, and a computer is used to control the tightening process, so that the synchronism of the tightening process is ensured, and a better effect is achieved. However, such devices are generally bulky, expensive, inconvenient to move, difficult to carry around, and impractical for use in areas where operating space is limited.
In conclusion, in the field of high-precision annular hoop assembly, a synchronous fastening device and a corresponding synchronous fastening method which are small in size, simple in structure, simple and convenient to operate and easy to carry are still lacking.
Disclosure of Invention
The invention aims to solve the problems that the rotation deviation is easy to occur when a traditional asynchronous installation and fastening mode is adopted in the installation process of an annular clamp, and the installation precision of the clamp is poor.
The specific technical scheme is as follows:
the annular hoop synchronous fastening device comprises a base, a sliding block, two buckles and two flexible binding belts;
the base is arranged at the center of the second semicircular hoop, the sliding block is connected with the base through a moving mechanism, and the sliding block is far away from or close to the base through the moving mechanism; two the flexible band fix respectively in the both sides of sliding block, the other end of flexible band is connected with two buckles respectively, two buckles set up respectively in the outside of first semicircle clamp tip.
Furthermore, each buckle comprises a cushion block, a first lock catch and a second lock catch, and the first lock catch and the second lock catch are respectively hinged to two sides of the cushion block; an opening is formed in the middle of the cushion block and used for allowing a clamp fastening bolt to penetrate through;
the base comprises a flexible base and a metal base; the bottom of the flexible base is a molded surface and is used for being tightly attached to a fastening part; the bottom of the flexible base is also provided with a slot for avoiding the clamp; the metal base is fixed on the top surface of the flexible base, and the middle part of the metal base is connected with the lower end of the lead screw through a bearing; a polished rod is fixed on the metal base; the polish rod is parallel to the lead screw;
the sliding block comprises a sliding block and a lead screw; the sliding block is parallel to the metal base; the lead screw is provided with a lead screw nut and an inner hexagonal screw head; the screw nut is fixed in the central hole of the sliding block and is in threaded connection with the screw; the inner hexagonal screw head is fixed at the upper end of the screw rod; grooves are formed in two sides of the sliding block and provided with bolts; the sliding block is also provided with a hole for sliding connection with a polish rod on the metal base;
one end of the flexible binding belt is connected with the bolt and the lock catch on the sliding block, and the other end of the flexible binding belt is connected with the first lock catch and the second lock catch of the buckle.
The fastening method using the annular hoop synchronous fastening device comprises the following steps:
adjusting an annular hoop consisting of a first semicircular hoop and a second semicircular hoop to a preset position, connecting two ends of the first semicircular hoop and the second semicircular hoop by hoop fastening bolts, and slightly screwing; placing the sliding block and the base on the outer wall of the fastening part and in the middle of the second semicircular hoop so as to respectively enable the two buckles to be positioned on the outer side of the end part of the first semicircular hoop;
driving the sliding block to be far away from the base, and gradually tensioning the flexible binding belt; the tensioned flexible bridle drives the first semicircular clamp to gradually clamp towards the second semicircular clamp; stopping driving the sliding block when the first semicircular hoop and the second semicircular hoop are clamped to required positions, and then screwing the two hoop fastening bolts; after the tightening is finished, the driving sliding block is close to the base, the flexible binding belt is loosened, the buckle is disassembled, and the synchronous fastening work of the annular clamp is completed.
Furthermore, the bottom of the flexible base is tightly attached to the fastening part, so that the groove of the flexible base avoids the second semicircular hoop; make two buckles be connected to semicircular clamp both ends junction department respectively to with the backing plate be located the outside of first semicircular clamp tip, make clamp fastening bolt pass through from the hole of dodging in the middle of the cushion.
Compared with the prior art, the invention has the following positive effects:
(1) the synchronous tightening of the annular clamp can be realized, the rotation displacement deviation in the installation process of the annular clamp is avoided, and the installation precision of the annular clamp is ensured;
(2) the structure is exquisite, and synchronous tightening of the annular clamp can be realized without using a motor and a complex control algorithm;
(3) the operation is simple and convenient, an external power supply and a hydraulic source are not needed, and the synchronous tightening of the annular clamp can be realized manually;
(4) the synchronous tightening of the annular clamp can be realized only by depending on a mechanical structure, and an expensive servo motor, a hydraulic motor and a control computer are not needed.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the snap structure of the present invention;
FIG. 3 is a schematic view of the base structure of the present invention;
FIG. 4 is a schematic view of the slider structure of the present invention;
FIG. 5 is a schematic view of a flexible belt structure of the present invention.
Detailed Description
The specific technical scheme of the invention is described by combining the embodiment.
As shown in fig. 1, the annular hoop synchronous fastening device comprises a base, a sliding block, two buckles and two flexible belts 8;
as shown in fig. 2, each of the buckles comprises a cushion block 5, a first buckle 3 and a second buckle 4, and the first buckle 3 and the second buckle 4 are respectively hinged to two sides of the cushion block 5; an opening is formed in the middle of the cushion block 5 and used for allowing a clamp fastening bolt 6 to penetrate through;
as shown in fig. 3, the base comprises a flexible base 9 and a metal base 10; the bottom of the flexible base 9 is a molded surface and is used for being tightly attached to a fastening part; the bottom of the flexible base 9 is also provided with a slot for avoiding the clamp; the metal base 10 is fixed on the top surface of the flexible base 9, and the middle part of the metal base 10 is connected with the lower end of a lead screw 13 through a bearing 12; a polish rod 11 is fixed on the metal base 10; the polish rod 11 is parallel to the lead screw 13;
as shown in fig. 4, the sliding block includes a sliding block 16 and a lead screw 13; the sliding block 16 is parallel to the metal base 10; the lead screw 13 is provided with a lead screw nut 15 and an inner hexagonal screw head 14; the screw nut 15 is fixed in a central hole of the sliding block 16, and the screw nut 15 is in threaded connection with the screw 13; the inner hexagonal screw head 14 is fixed at the upper end of the screw rod 13; grooves are formed in two sides of the sliding block 16, and a bolt is arranged on the grooves; the slide block 16 is also provided with a hole for sliding connection with the polish rod 11 on the metal base 10;
as shown in fig. 5, one end of the flexible strap 8 is connected with the latch and the latch on the slider 16, and the other end is connected with the first latch 3 and the second latch 4 of the buckle.
When the clamp is used, as shown in figure 1, an annular clamp consisting of a first semicircular clamp 2 and a second semicircular clamp 7 is adjusted to a preset position, and clamp fastening bolts 6 at two ends of the first semicircular clamp 2 and the second semicircular clamp 7 are slightly screwed; placing the sliding block and the base on the outer wall of the fastening part 1 and in the middle of the second semicircular hoop 7 to enable the bottom of the flexible base 9 to be tightly attached to the fastening part 1 and enable the groove of the flexible base 9 to avoid the second semicircular hoop 7; respectively connecting two buckles to joints at two ends of the semicircular hoop, and positioning the base plate 5 at the outer side of the end part of the first semicircular hoop 2 to enable the hoop fastening bolt 6 to penetrate out of the avoidance hole in the middle of the cushion block 5;
screwing the internal hexagonal screw head 14 by using a manual or automatic tool, rotating the lead screw 13 to drive the sliding block 16 to be far away from the base along the polished rod 11, and simultaneously gradually tensioning the flexible bridle 8; taut flexible band 8 passes through hasp and cushion 5 and drives first semicircle clamp 2 and gradually to 7 direction chucking of second semicircle clamp, because base and sliding block are located 7 intermediate position departments of second semicircle clamp, so 16 rises of slider can drive two 8 synchronous tautness of flexible band, and consequently the clamp can not take place rotary displacement at the chucking in-process. And when the clamping hoop is clamped to a required position, stopping screwing the inner hexagonal screw head 14. The tightening of the two band tightening bolts 6 in turn is performed using a manual or automatic tool, and the tightening process does not cause movement of the bands, since the bands are already pre-clamped at this point. After the tightening is finished, the inner hexagonal screw head 14 is screwed reversely, the sliding block 16 is close to the base along the polished rod 11, the flexible binding band 8 is loosened, the buckle is detached, and the synchronous fastening work of the annular clamp is finished.

Claims (5)

1. The annular hoop synchronous fastening device is characterized by comprising a base, a sliding block, two buckles and two flexible bridles (8);
the base is arranged at the center of the second semicircular hoop (7), the sliding block is connected with the base through a moving mechanism, and the sliding block is far away from or close to the base through the moving mechanism; two flexible band (8) fix respectively in the both sides of sliding block, the other end of flexible band (8) is connected with two buckles respectively, two buckles set up respectively in the outside of first semicircle clamp (2) tip.
2. A synchronous fastening device of annular clamp according to claim 1, characterized in that each buckle comprises a cushion block (5), a first buckle (3) and a second buckle (4), the first buckle (3) and the second buckle (4) are respectively hinged on two sides of the cushion block (5); an opening is arranged in the middle of the cushion block (5) and used for allowing a clamp fastening bolt (6) to penetrate through.
3. A ring clamp synchronous tightening device according to claim 2, characterized in that the base comprises a flexible base (9), a metal base (10); the bottom of the flexible base (9) is a molded surface and is used for being tightly attached to a fastening part; the bottom of the flexible base (9) is also provided with a slot for avoiding the clamp; the metal base (10) is fixed on the top surface of the flexible base (9), and the middle part of the metal base (10) is connected with the lower end of a lead screw (13) through a bearing (12); a polish rod (11) is fixed on the metal base (10); the polish rod (11) is parallel to the lead screw (13);
the sliding block comprises a sliding block (16) and a lead screw (13); the sliding block (16) is parallel to the metal base (10); the lead screw (13) is provided with a lead screw nut (15) and an inner hexagonal screw head (14); the screw nut (15) is fixed in a central hole of the sliding block (16), and the screw nut (15) is in threaded connection with the screw (13); the inner hexagonal screw head (14) is fixed at the upper end of the screw rod (13); grooves are formed in two sides of the sliding block (16) and provided with bolts; the sliding block (16) is also provided with a hole for sliding connection with the polish rod (11) on the metal base (10);
one end of the flexible binding belt (8) is connected with the bolt and the lock catch on the sliding block (16), and the other end of the flexible binding belt is connected with the first lock catch (3) and the second lock catch (4) of the buckle.
4. Method for simultaneous fastening of ring bands, characterized in that the use of a device for simultaneous fastening of ring bands according to any of claims 1 to 3 comprises the steps of:
firstly, adjusting an annular hoop consisting of a first semicircular hoop (2) and a second semicircular hoop (7) to a preset position, connecting the two ends of the first semicircular hoop (2) and the second semicircular hoop (7) by a hoop fastening bolt (6), and slightly screwing; the sliding block and the base are placed on the outer wall of the fastening part (1) and positioned in the middle of the second semicircular clamp (7), and the two buckles are respectively positioned on the outer sides of the end parts of the first semicircular clamp (2);
the sliding block is driven to be far away from the base, and the flexible belt (8) is gradually tensioned; the tensioned flexible bridle (8) drives the first semicircular hoop (2) to gradually clamp towards the second semicircular hoop (7); when the first semicircular clamp (2) and the second semicircular clamp (7) are clamped to the required positions, stopping driving the sliding block, and then screwing two clamp fastening bolts (6); after the tightening is finished, the driving sliding block is close to the base, the flexible binding band (8) is loosened, the buckle is disassembled, and the synchronous fastening work of the annular clamping hoop is completed.
5. A method of simultaneous tightening of a ring clamp according to claim 4, characterized in that the bottom of the flexible base (9) is in close abutment with the tightening element (1) so that the groove of the flexible base (9) avoids the second semi-circular clamp (7); make two buckles be connected to semicircular clamp both ends junction department respectively to lie in the outside of first semicircular clamp (2) tip with backing plate (5), make clamp fastening bolt (6) pass through from dodging the hole in the middle of cushion (5).
CN202010962574.2A 2020-09-14 2020-09-14 Synchronous fastening device and method for annular clamp Active CN112160955B (en)

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CN112160955B CN112160955B (en) 2022-04-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117340841A (en) * 2023-12-06 2024-01-05 苏州春亿来机械有限公司 Synchronous fastening device for annular clamp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110006552A1 (en) * 2005-06-03 2011-01-13 Stachowiak Jr John Edward Retained lock system and method
CN103307362A (en) * 2013-05-30 2013-09-18 苏州明远冲压件厂 Water pipe clamp
CN204573391U (en) * 2015-05-06 2015-08-19 国家电网公司 Pipe joint securing means
US20160003377A1 (en) * 2012-07-04 2016-01-07 Continental Teves Ag & Co. Ohg Fastening device for fixing a cable
CN205315899U (en) * 2015-11-16 2016-06-15 凤城市万通机械制造有限公司 Two C clamp that appears
CN205423417U (en) * 2015-12-04 2016-08-03 重庆长安汽车股份有限公司 Clamp with positioning looseness resistant function
CN206241612U (en) * 2016-11-28 2017-06-13 潍坊竣泽机械有限公司 Improve the frock of clip Butt Assembling efficiency

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110006552A1 (en) * 2005-06-03 2011-01-13 Stachowiak Jr John Edward Retained lock system and method
US20160003377A1 (en) * 2012-07-04 2016-01-07 Continental Teves Ag & Co. Ohg Fastening device for fixing a cable
CN103307362A (en) * 2013-05-30 2013-09-18 苏州明远冲压件厂 Water pipe clamp
CN204573391U (en) * 2015-05-06 2015-08-19 国家电网公司 Pipe joint securing means
CN205315899U (en) * 2015-11-16 2016-06-15 凤城市万通机械制造有限公司 Two C clamp that appears
CN205423417U (en) * 2015-12-04 2016-08-03 重庆长安汽车股份有限公司 Clamp with positioning looseness resistant function
CN206241612U (en) * 2016-11-28 2017-06-13 潍坊竣泽机械有限公司 Improve the frock of clip Butt Assembling efficiency

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117340841A (en) * 2023-12-06 2024-01-05 苏州春亿来机械有限公司 Synchronous fastening device for annular clamp
CN117340841B (en) * 2023-12-06 2024-02-02 苏州春亿来机械有限公司 Synchronous fastening device for annular clamp

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