CN114559239A

CN114559239A - Sealing ring assembling equipment

Info

Publication number: CN114559239A
Application number: CN202011357474.3A
Authority: CN
Inventors: 付威; 雍红飞; 吴怀波
Original assignee: Ampov Connector System Nantong Co ltd
Current assignee: Ampov Connector System Nantong Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2022-05-31

Abstract

The invention discloses a seal ring assembling device, which is used for installing a seal ring at a preset position on an elongated member, and comprises: a feed device configured to move the at least one sealing ring along the transport path; and a distraction device configured for distracting the seal ring to expand the diameter of the bore of the seal ring to enable insertion of the elongate member; wherein strutting the device and include: a guide pin configured to receive a sealing ring from the feeding device, and at least a portion of an outer circumferential surface of the guide pin has a profile adapted to fit over the sealing ring to spread the sealing ring apart; and a sleeve configured to receive the sealing ring from the guide pin, and having a hollow cavity for receiving the elongate member. With the seal ring assembling apparatus according to the present invention, possible damage to the seal ring can be reduced, and the mounting position of the seal ring on the elongated member can be easily set.

Description

Sealing ring assembling equipment

Technical Field

The present invention relates to a seal ring assembly apparatus, and in particular to a seal ring assembly apparatus for assembling a seal ring to an elongate member or component.

Background

In the field of automobile manufacturing, it is necessary to assemble a grommet to a cable, and automated terminal assembling equipment has been developed for a large number of manufacturing processes for assembling the grommet to the cable.

Automated terminal assembly equipment typically includes a feeder device and a spreader device. The feeding device can automatically feed the sealing ring into the assembly equipment from the sealing ring supply position, then, the sealing ring which is originally in a loose state is expanded to a state that the inner diameter of the sealing ring is enough to be inserted into the cable by the aid of the opening device, and then the retaining mechanism for retaining the sealing ring is driven to sleeve the sealing ring on the cable, so that the assembly step of the sealing ring relative to the cable is completed.

In automated seal ring assembly equipment, the distraction device includes a jaw, a strut block, or a guide rod to distract the seal ring. However, the existing automatic sealing ring assembling equipment is adopted to prop open the sealing ring, the sealing ring is often damaged easily due to the fact that the propping range of the sealing ring is too large, and the sealing effect and the service life of the sealing ring are further influenced.

In addition, the existing automatic sealing ring assembling equipment is complex in overall structure, and the position of the cable installation sealing ring is inconvenient to adjust.

Accordingly, there is a need for improvements in existing automated end seal ring assembly equipment that overcome the deficiencies of existing equipment.

Disclosure of Invention

To overcome the disadvantages of the prior art, the present invention provides a seal ring assembling apparatus for mounting a seal ring to a predetermined position on an elongated member, the seal ring assembling apparatus comprising: an infeed device configured to move at least one seal ring along a transport path; and a distraction device configured to distract the sealing ring to enlarge the diameter of the bore of the sealing ring to enable insertion of the elongate member; wherein, strutting the device and including: a guide pin configured to receive a sealing ring from the feeding device, and at least a portion of an outer circumferential surface of the guide pin has a profile adapted to fit over the sealing ring to spread the sealing ring apart; and a sleeve configured to receive a seal ring from the guide pin, the sleeve having a hollow cavity for receiving the elongate member.

According to another aspect of the invention, the sleeve has a transfer position in which it engages with the guide pin to allow the sealing ring on the guide pin to be transferred onto the sleeve, and a tipping position in which the hollow cavity of the sleeve receives the elongate member to allow the sealing ring to be transferred to the preset position on the elongate element.

According to yet another aspect of the invention, a distractor device comprises: a rotating device that rotates the sleeve between the transfer position and the tipping position, and under the action of the rotating device, the sleeve in the tipping position is rotated through a 90 degree angle relative to the sleeve in the transfer position.

According to yet another aspect of the present invention, the spreading device further comprises a positioning sleeve disposed around the outer circumferential surface of the guide pin, the positioning sleeve forming a gap with the guide pin, the sleeve having an open end adapted to be inserted into the gap.

According to still another aspect of the present invention, the distracting device further comprises: an insertion driving part for moving the guide pin in an insertion direction of inserting the seal ring; and a misalignment driving part for moving the guide pin in a horizontal direction perpendicular to the insertion direction.

According to yet another aspect of the invention, the distracting device further comprises: the pushing-out piece is sleeved outside the sleeve and is configured to move along the sleeve so as to push the sealing ring on the sleeve out of the sleeve.

According to yet another aspect of the invention, the distracting device further comprises: a guide pin base on which at least two guide pins of different diameter sizes are disposed, and a sleeve base on which a corresponding plurality of the sleeves of each of the guide pins are positioned.

According to a further aspect of the invention, the elongate member is a cable, the grommet assembling apparatus further comprising a retaining device for retaining the cable, the retaining mechanism comprising a grip portion for retaining the cable by gripping and in an orientation in which the cable can be inserted into the hollow cavity of the sleeve.

According to yet another aspect of the invention, the distracting device further includes a drive portion configured to move the retainer device relative to the sleeve, the drive portion being configured to position the retainer device and the sleeve at a plurality of different separation distances between the retainer device and the sleeve.

According to yet another aspect of the invention, the feeder device includes a feed rail and a carrier, the carrier being offset relative to the ends of the feed rail.

With the sealing ring assembling device, the opening mode of the guide pin and the sleeve switching sealing ring can keep the opening range of the sealing ring to the minimum range capable of inserting a cable, and the potential damage to the sealing ring is minimized.

The sealing ring assembling equipment, particularly the expanding device in the sealing ring assembling equipment, has the advantages of reduced overall structure size and convenient processing and installation.

In addition, the relative position of the retaining device relative to the sleeve in the opening device is controlled, so that the installation position of the sealing ring on the cable can be easily adjusted, the assembling equipment does not need to be adjusted in a complex manner, and various different assembling requirements can be met.

Drawings

For a more complete understanding of the present invention, reference is made to the following description of exemplary embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 shows a perspective view of a seal ring assembling apparatus according to a preferred embodiment of the present invention.

Fig. 2 shows another perspective view of a seal ring assembling apparatus according to a preferred embodiment of the present invention.

Fig. 3 shows an enlarged perspective view of a portion of a seal ring assembling apparatus according to a preferred embodiment of the present invention.

List of reference numerals

10 sealing ring assembling equipment

15 base

20 feeding device

21 feeding rail

22 material loading seat

30 strutting arrangement

31 guide pin

32 guide pin base

321 insert drive part

322 dislocation driving part

33 positioning sleeve

34 sleeve

35 sleeve base

36 pivot

37 ejector

50 holding device

51 clamping part

60 Cable

70 sealing ring

80 drive part

Detailed Description

The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.

As shown in fig. 1 and 2, the sealing ring assembling apparatus 10 according to the preferred embodiment of the present invention generally includes a feeding device 20, a spreading device 30, and a holding device 50. The feeding device 20 of the assembly apparatus 10 is configured for conveying along a conveying path the sealing rings 70 to be mounted on elongated elements such as cables 60. Distractor 30 is configured to distract seal ring 70, expanding the bore diameter of seal ring 70 to the point where cable 60 can be inserted. The holding device 50 of the assembly apparatus 10 is configured to hold the cable 60 to which the grommet 70 is to be mounted, and to move the cable 60 relative to the grommet 70 held in the distracting device 30 in a state where the cable 60 is held by the assembly apparatus 10.

It will be appreciated that the gasket assembly apparatus 10 according to the present invention may also be used to mount a gasket 70 to other elongate members besides the cable 60.

In the preferred embodiment according to the present invention, the feeder device 20 of the assembly apparatus 10 comprises an elongated feeder rail 21, the feeder rail 21 having a slot along which the sealing rings 70 to be installed are moved in a row towards the distractor device 30. The feed rail 21 has a carrier 22 arranged near one end of the spreader 30, which carrier 22 is used to carry a sealing ring 70 to be mounted next. As can be seen from fig. 1, the load seat 22 is located next to one end of the feed rail 21 and is offset with respect to the extension direction of the feed rail 21. The carrier 22 is positioned below at least one guide pin 31 in the distractor 30 such that the center of the bore of the seal ring 70 is generally aligned with the longitudinal axis of the guide pin 31. The feed rail 21 may have the sealing ring 70 thereon moved along the feed rail 21 by vibration, belt, or the like.

It should be understood that the form of the feed device 20 is not exclusive and that in other alternative embodiments, other forms of feed device 20 may be employed, such as a rotary table form of feed device.

In the preferred embodiment, the feed rails 21 are arranged horizontally in a straight line, but in other alternative embodiments, the feed rails 21 may also include curves, and the inlet ends of the feed rails 21 are at different horizontal heights from the load holders 22, taking into account the arrangement positions of the adjacent devices. The inlet end of the feed rail 21 may be arranged below one hopper.

Next, referring to fig. 1 to 3, the expanding device 30 of the assembling apparatus 10 according to the preferred embodiment of the present invention will be described in detail. In particular, the distraction device 30 according to the invention comprises a guide pin 31 adapted to receive the sealing ring 70 to distract it and a sleeve 34 receiving the expanded sealing ring 70 from the guide pin 31.

Preferably, the guide pin 31 in the distractor 30 is mounted on a movable guide pin base 32, and the guide pin 31 moves with the guide pin base 32 to a position above the cartridge 22 such that the longitudinal axis of the guide pin 31 is aligned with the bore of the seal ring 70, preferably the center of the bore. The guide pin 32 is movable relative to the seal ring 70, so that the seal ring 70 is fitted on the outer circumferential surface of the guide pin 31, and the diameter of the seal ring 70 is enlarged by the contour of the outer circumferential surface of the guide pin 31.

To facilitate alignment and insertion of guide pin 31, a forward section of guide pin 31 (i.e., a section of guide pin 31 adjacent the seal ring) has a diameter less than the diameter of the hole of non-stretched seal ring 70, thereby forming an insertion section of guide pin 31 to facilitate insertion of guide pin 31. The guide pin 31 has a frusto-conical shape at its mid-section, which causes the diameter of the bore to increase progressively as the guide pin 31 is inserted relative to the bore of the seal ring 70. The rear section of the guide pin 31 near the guide pin base 32 is cylindrical with a predetermined diameter corresponding to the diameter to which the bore of the seal ring 70 is to be enlarged. The outer peripheral surfaces of the three sections of the guide pin 31 are continuously formed and smoothly transited.

The distractor 30 also includes a locating sleeve 33 disposed about the outer circumference of the guide pin 31. Specifically, a positioning sleeve 33 is formed around the rear section of the guide pin 31, as shown in fig. 3. A gap is formed between the inner surface of the positioning sleeve 33 and the outer surface of the guide pin 31, which gap is adapted to receive the sealing ring 70 and to insert the end of the sleeve 34 when the sealing ring 70 is transferred from the guide pin 31 onto the positioning sleeve 33.

Furthermore, the expanding device 30 according to the present invention is provided with an insertion driving unit 321 for inserting the guide pin 31, and the insertion driving unit 321 is typically an air cylinder and drives the guide pin base 32 to move in the insertion direction of the insertion seal ring 70. Generally, the insertion direction is a vertically downward direction. Meanwhile, the distractor 30 is further provided with a displacement drive portion 322, and the displacement drive portion 322 is configured to move the guide pin 31 in a direction perpendicular to the insertion direction by the guide pin base 32. The misalignment drive unit 322 is generally used to move the guide pin base 32 in the horizontal direction. The misalignment driving part 322 may include two air cylinders capable of moving the guide pin base 32 in two directions perpendicular to each other in the horizontal direction, respectively. By means of the two-way cylinder drive, the alignment of the longitudinal axis of the guide pin 31 with the bore of the sealing ring 70 and also the alignment of the longitudinal axis of the guide pin 31 with the central axis of the sleeve 34 in the spreading device 30 can be achieved.

The sleeve 34 of the distractor 30 is mounted on a sleeve base 35. The sleeve 34 is a thin-walled cylindrical sleeve 34, the wall of the sleeve 34 surrounding a hollow cavity which is open at its end facing the holder 50.

The sleeve base 35 moves the sleeve 34 between the transfer position and the attaching position by an actuator such as an air cylinder. Fig. 3 shows a transfer position in which sleeve 34 is engageable with guide pin 31 to allow a sealing ring 70 on guide pin 31 to be transferred onto sleeve 34, and a loading position (not shown) in which sleeve 34 allows cable 60 to be received into the hollow cavity of sleeve 34 to enable sealing ring 70 to be fitted to a preset position on cable 60. In other words, the hollow cavity of the sleeve 34 is adapted to receive the guide pin 31 in the transfer position and to receive the cable 60 in the loading position.

The outer circumferential surface of the sleeve 34 has a substantially uniform diameter and, in addition, the inner diameter of the hollow cavity is typically slightly larger than the diameter of the outer circumferential surface of the rear section of the guide pin 31 to allow the rear section of the guide pin 31 to be snugly inserted into the hollow cavity of the sleeve 34.

In the preferred embodiment, movement of sleeve 34 between the transfer and tipping positions is accomplished by rotating sleeve base 35 about pivot 36, as shown in figure 1. Fig. 2 shows the sleeve 34 in a shifted position, in which the longitudinal axis of the sleeve 34 extends in a substantially vertical direction, in which the open end of the hollow cavity of the sleeve 34 is aligned with one of the guide pins 31 located above. Preferably, when the sleeve base 35 is rotated 90 degrees about the pivot 36, the longitudinal axis of the sleeve 34 extends generally horizontally, and the sleeve 34 is rotated into its stowed position with the open end of the hollow cavity of the sleeve 34 aligned with the cable retained by the retainer 50.

Further, the distracting device 30 further comprises an ejector 37, wherein the ejector 37 is arranged outside the sleeve 34 and is configured to be movable along the longitudinal axis of the positioning sleeve 33, so as to push the sealing ring 70 away from the sleeve 34 and transfer it onto the sealing ring 70. In a preferred embodiment the ejector 37 is annular and is moved along the outer surface of the sleeve 34 by means of a pneumatic cylinder.

The grommet assembling apparatus 10 further includes a holding device 50 for holding a cable 60, as shown in fig. 1. The holding device 50 comprises a clamping portion 51. Preferably, the clamping portion 51 includes an upper card and a lower card, which form a bayonet portion therebetween for fixing the cable 60, and can be opened and closed with each other, and when the upper and lower cards are closed, the cable 60 can be stably held in the bayonet portion.

In order to move the sleeve 34 and the cable 70 relative to one another, a drive 80 is provided, in particular in the form of a cylinder, which moves the spreader 30 with the sleeve 34 toward the holding device 50. Rails are provided on the base 15 of the assembly apparatus 10 to enable relative movement between the holding device 50 relative to the spreading device 30.

It will be appreciated that in other alternative embodiments, the drive portion may be arranged to move the gripping portion 51 towards or away from the sleeve 34.

Preferably, the seal ring assembling apparatus 10 may further include a movement limiting mechanism for setting and limiting the amount of displacement of the clamping portion with respect to the sleeve 34, and the installation position of the seal ring 70 with respect to the cable 60 may be easily set by controlling the amount of displacement.

According to the preferred embodiment of the present invention, the installation of the grommet 70 with respect to the cable 60 is facilitated by the grommet assembling apparatus 10.

First, the sealing rings 70 to be installed are fed into the inlet end of the feeding rail 21 of the feeding device 20, so that the sealing rings 70 are arranged in a row in the groove of the feeding rail 21, and the sealing rings 70 are conveyed along the feeding rail 21 to the loading seat 22. At this time, the seal ring 70 is supported such that the hole of the seal ring 70 faces upward. The guide pin base 32 of the distractor 30 is moved directly above the carrier 22 by the driving action of the misalignment drive 322 so that the longitudinal axis of the guide pin 31 is substantially aligned with the bore of the seal ring 70. After the guide pin 31 is aligned with the hole of the seal ring 70, the guide pin 31 is moved toward the seal ring 70 by the insertion driving portion 321, and the guide pin 31 is inserted into the hole of the seal ring 70 until the seal ring 70 moves to the rear stage of the guide pin 31, at which time the hole of the seal ring 70 is spread. At this point, the insertion cylinder moves the guide pin 31 in a direction away from the loading shoe 22, and subsequently the misalignment cylinder moves the guide pin 31 above the sleeve 34, with the sleeve 34 in its transfer position, i.e., with the longitudinal axis of the sleeve 34 in a substantially vertical orientation, such that the longitudinal axis of the guide pin 31 is aligned with the longitudinal axis of the sleeve 34. Subsequently, the insertion cylinder is activated again to insert the guide pin 31 into the hollow cavity of the sleeve 34 until the end of the sleeve 34 is inserted into the gap between the guide pin 31 and the positioning sleeve 33, and the seal ring 70 is transferred to the outer circumferential surface of the sleeve 34 by the abutting action of the positioning sleeve 33. After the transfer is completed, the insertion driving portion 321 is again actuated to move the guide pin 31 away from the sleeve 34. The sleeve 34 is then rotated 90 degrees about the pivot 36 into its tipping position, at which point the cable 60 has been mounted in the grip portion 51 of the holder 50, and the drive portion 80 is activated to move the sleeve 34 towards the grip portion 51 until the cable 60 is inserted into the hollow cavity of the sleeve 34. Finally, the push-out piece 37 is actuated, the push-out piece 37 engages the sealing ring 70 fitted on the sleeve 34, the movement of the push-out piece 37 towards the open end of the sleeve 34 pushing the sealing ring 70 away from the sleeve 34, which assembles the seal to the cable 60 when the sealing ring 70 is moved away from the sleeve 34. In this manner, automated assembly of a grommet 70 relative to cable 60 is accomplished.

As shown in fig. 1, two guide pins having different diameters are mounted on the guide pin base 32, and two sleeves 34 having different outer diameters and inner diameters are mounted on the sleeve base, respectively, the outer diameters of the two sleeves 34 and the inner diameter of the hollow cavity.

With the seal ring assembly apparatus 10 according to the present invention, the extent to which the seal ring 70 is stretched is maintained at a minimum insertable extent to the cable 60 by switching the seal ring stretching manner through the guide pins 31 and the sleeve 34, minimizing potential damage to the seal ring 70.

The sealing ring assembling device 10, particularly the expanding device 30 therein, has the advantages of reduced overall structure size and convenient processing and installation.

In addition, the relative position of the retaining device relative to the sleeve in the opening device is controlled, so that the installation position of the sealing ring on the cable can be easily adjusted, the complex adjustment of the assembling equipment is not needed, and various different assembling requirements can be met.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims

1. A seal ring assembly apparatus for mounting a seal ring to a predetermined position on an elongated member, the seal ring assembly apparatus comprising:

an infeed device configured to move at least one seal ring along a transport path; and

a seal ring distractor configured to distract a seal ring to expand a diameter of a bore of the seal ring to enable insertion of the elongate member;

it is characterized in that the distraction device comprises:

a guide pin configured to receive a sealing ring from the feeding device, and at least a portion of an outer circumferential surface of the guide pin has a profile adapted to fit over the sealing ring to spread the sealing ring apart; and is provided with

A sleeve configured to receive a seal ring from the guide pin, and the sleeve having a hollow cavity for receiving the elongated member.

2. The seal ring assembly apparatus as claimed in claim 1, wherein said sleeve has a transfer position in which said sleeve engages said guide pin to allow a seal ring on said guide pin to be transferred onto said sleeve, and a cocking position in which said hollow cavity of said sleeve receives said elongate member to allow said seal ring to be transferred to said preset position on said elongate element.

3. The seal ring assembly apparatus as claimed in claim 2 wherein said distracting device comprises:

a rotating device that rotates the sleeve between the transfer position and the tipping position, and under the action of the rotating device, the sleeve in the tipping position is rotated through a 90 degree angle relative to the sleeve in the transfer position.

4. The seal ring assembly apparatus as claimed in claim 1, wherein said distracting device further comprises a locating sleeve disposed around said outer peripheral surface of said guide pin, said locating sleeve forming a gap with said guide pin,

the sleeve has an open end adapted to be inserted into the gap.

5. The seal ring assembly apparatus as claimed in claim 1, wherein said distracting device further comprises:

an insertion driving part for moving the guide pin in an insertion direction of inserting the seal ring; and

a misalignment driving part for moving the guide pin in a horizontal direction perpendicular to the insertion direction.

6. The seal ring assembly apparatus as claimed in claim 1, wherein said distracting device further comprises:

the pushing-out piece is sleeved outside the sleeve and is configured to move along the sleeve so as to push the sealing ring on the sleeve out of the sleeve.

7. The seal ring assembly apparatus as claimed in claim 1 or 2, wherein the distracting device further comprises:

a guide pin base on which at least two guide pins of different diameter sizes are arranged, an

And a sleeve base on which a sleeve corresponding to each of the guide pins is positioned.

8. A grommet assembly apparatus as recited in claim 1, wherein the elongate member is a cable, the grommet assembly apparatus further comprising a retaining device for retaining the cable, the retaining mechanism comprising a gripping portion, wherein the gripping portion is for retaining the cable by gripping and in an orientation in which the cable can be inserted into the hollow cavity of the sleeve.

9. The seal ring assembly apparatus as claimed in claim 8 wherein said distractor device further comprises a drive portion capable of moving said retainer device relative to said sleeve, said drive portion configured to enable said retainer device and said sleeve to be positioned at a plurality of different separation distances between said retainer device and said sleeve.

10. The seal ring assembly apparatus as claimed in claim 1 wherein said feed means includes a feed rail and a carrier, said carrier being offset from the end of the feed rail.