CN108943748B

CN108943748B - Device for assembling buckle in stages

Info

Publication number: CN108943748B
Application number: CN201810955985.1A
Authority: CN
Inventors: 邓璞; 周建军; 高源�; 马力; 王卫生
Original assignee: Chongqing Weisize Auto Parts Co ltd
Current assignee: Chongqing Pingwei Automotive Systems Co ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2023-11-24
Anticipated expiration: 2038-08-21
Also published as: CN108943748A

Abstract

The invention provides a device for assembling a buckle in stages, which is used for solving the problem of difficult installation of the buckle in the prior art. A device for staged assembly of a buckle for mounting the buckle to a buckle seat, comprising: the mounting seat is provided with a pull belt and a pushing-in piece, the pull belt and the pushing-in piece are arranged on the mounting seat, the pushing-in piece is used for pushing the buckle to the buckle seat, and the pull belt is used for pulling the buckle seat to the buckle and driving the pushing-in piece to move; the first guide mechanism is arranged on the mounting seat and used for guiding the pushing-in part and the pushing-in part only moves linearly in the moving direction of the buckle; one end of the pull belt is relatively fixed in the movement direction of the buckle through the first connecting piece and the pushing piece, and the other end of the pull belt is of a toothed belt structure; an elastic return device; and the output end of the driving mechanism is meshed with the toothed belt of the pull belt. Has the effect of convenient assembly.

Description

Device for assembling buckle in stages

Technical Field

The invention relates to the field of buckle assembly equipment, in particular to a device for assembling buckles in stages.

Background

The connecting modes of the plastic parts are many, wherein the mode of adopting the buckle to connect accounts for the vast majority, however, according to the current state of the art in China, the enterprise that can adopt full automation to install the buckle is not large, and most enterprises can adopt manual mode to install the buckle. Nowadays, the precision requirements for plastic parts are higher and higher, and the precision requirements for corresponding connection parts are also higher and higher. The buckle also has definite limiting requirements when designing plastic parts, and an interference assembly mode is adopted during assembly. Therefore, the manual assembly is very difficult, the operation difficulty is high, and the efficiency is low.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a device for assembling a buckle in stages, which is used for solving the problem of difficulty in installing the buckle in the prior art.

To achieve the above and other related objects, the present invention provides a device for staged assembly of a buckle, for mounting the buckle to a buckle seat,

comprising the following steps:

the mounting seat is provided with a plurality of mounting holes,

a drawstring and a push-in piece which are arranged on the installation seat,

the pushing-in piece is used for pushing the buckle to the buckle seat, and the pull belt is used for pulling the buckle seat to the buckle and driving the pushing-in piece to move;

also comprises a first guiding mechanism arranged on the mounting seat,

the first guide mechanism is used for guiding the pushing-in part and the pushing-in part only moves linearly in the moving direction of the buckle;

one end of the pull belt is relatively fixed in the movement direction of the buckle through the first connecting piece and the pushing piece, the other end of the pull belt is of a toothed belt structure, and the pull belt and the side surface of the mounting seat jointly form a buckle seat accommodating space of a closed-loop structure when in work;

the device also comprises an elastic return device, wherein the elastic return device is used for returning the pushing-in piece;

also comprises a driving mechanism,

the output end of the driving mechanism is meshed with the toothed belt of the pull belt.

The invention is realized in such a way that the buckle seat is placed in a closed loop structure formed by the pull belt and the mounting seat, the buckle is placed at the position of the pushing-in part on the mounting seat, the driving mechanism drives the toothed belt of the pull belt to be meshed, the pull belt is rotated when the output end of the driving mechanism rotates, the pull belt is also rotated, when the closed loop structure of the toothed belt of the pull belt is reduced, the buckle seat is gradually pulled to the buckle by the pull belt, due to the existence of the elastic return device, the pushing-in part does not move before the elastic return part does not reach deformation pressure, at the moment, the buckle is static, when the buckle is contacted with the buckle seat, the toothed belt of the pull belt is continuously driven, at the moment, the displacement of the buckle seat is blocked by the side surface of the mounting seat, the buckle seat is in a static state, at the moment, the alignment state of the buckle and the buckle seat can be adjusted, the next step of accurate assembly is ensured, the pull belt of the first connecting piece pulls the pushing-in part, the pushing-in part compresses and deforms the elastic return part, thereby pushing the buckle is pushed into the buckle seat, after the assembly is completed, the driving mechanism reversely drives the toothed belt of the pull belt, at the moment, the elastic return part is ready for assembling the buckle seat.

Further, the first guide mechanism comprises a first guide groove and a first guide piece, the first guide groove is formed in the mounting seat along the moving direction of the buckle, the first guide piece is matched with the first guide groove, and the first guide piece is fixed with the pushing piece;

the cross section of the first guide piece is rectangular, or the first guide groove and the first guide piece are more than one, or the first guide groove is one, and the first guide piece in one first guide groove is more than one in the moving direction of the buckle.

Further, the side of mount pad is equipped with the second guide way along buckle direction of motion, the second guide way with first guide way intercommunication, first connecting piece with first guide piece is being connected and in buckle direction of motion is on relatively fixed.

Further, the elastic return device is a spring, and the elastic return device is arranged in the first guide groove.

Further, the tail end of the pushing piece is of a C-shaped structure.

Further, the driving mechanism comprises an axial pressing piece, a worm and a spiral internal spline;

the worm is connected with one end of the axial pressing piece coaxially through a circumferential rotating pair, the worm is meshed with the spiral internal spline, the spiral internal spline is arranged on the mounting seat, and the worm is meshed with the toothed belt of the pull belt.

Further, the mounting seat comprises a first mounting seat and a second mounting seat, and the height of the first mounting seat is higher than that of the second mounting seat;

the drawstring and the pushing piece are both arranged on the first mounting seat;

the spiral internal spline is arranged on the second mounting seat, and the toothed belt of the pull belt is clamped by the first mounting seat and the worm.

Further, the axial pressing member is driven manually, or the axial pressing member is driven by an electric, hydraulic or air cylinder.

Further, the driving mechanism further comprises an axial reset member, the axial reset member has a tendency of preventing the worm from approaching the spiral internal spline, and the axial reset member is used for resetting the worm.

Further, the driving mechanism further comprises a guiding limiting rod, the guiding limiting rod is fixed with the axial pressing piece, and the guiding limiting rod movably penetrates through the guiding hole of the mounting seat.

As described above, the device for assembling the buckle in stages has the following beneficial effects:

1. the assembly difficulty can be effectively reduced, and the assembly efficiency is improved.

2. The clamping device has the advantages that the clamping device can be pulled to the clamping device, the clamping device can be pushed to the clamping device, the action is performed in stages, the action intervention can be effectively performed, the alignment is performed, and the assembly precision is improved.

3. Has the characteristics of reliable and stable action.

4. The application range is wide, and the device can be suitable for manual driving and automatic driving.

5. The linear motion can be effectively converted into rotary motion, and the structure is simplified.

6. The whole device is small in size.

Drawings

Fig. 1 shows a perspective view of a device assembled in stages for a buckle according to the invention.

Fig. 2 shows a schematic view of the driving mechanism of the device for the snap-fit staged assembly of the invention.

Fig. 3 shows a perspective view of the worm and axial press fit of the snap-fit staged assembly device of the present invention.

Fig. 4 shows a top view of the mounting base of the device of the invention assembled in stages with a clasp.

Fig. 5 shows a D-D cross-sectional view of fig. 4.

Fig. 6 shows a side view of the mount of the device of the present invention assembled in stages with a clasp.

Fig. 7 shows a cross-sectional view taken in the direction B-B of fig. 6.

Fig. 8 shows a schematic view of the device for assembling the buckle in stages according to the first working state of the device.

Fig. 9 shows a schematic view of the second working state of the device for assembling the buckle in stages according to the invention.

Fig. 10 shows a schematic view of the device for the staged assembly of the buckle in the third working state.

Description of element reference numerals

1. Buckle

2. Buckle seat

3. Mounting base

4. Pull belt

5. Push-in part

6. First guiding mechanism

41. First connecting piece

7. Elastic return device

8. Driving mechanism

61. First guide groove

62. First guide member

411. Second guide groove

81. Axial pressing piece

82. Worm screw

821. Circumferential revolute pair

83. Spiral internal spline

31. First mounting seat

32. Second mounting seat

84. Axial resetting piece

85. Guiding limit rod

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

Please refer to fig. 1 to 10. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are otherwise, required to achieve the objective and effect taught by the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.

In this embodiment, referring to fig. 1 and 2, the present invention provides a device for assembling a buckle in stages, for mounting a buckle 1 on a buckle seat 2,

comprising the following steps:

the mounting base 3 is provided with a plurality of mounting holes,

a pull belt 4 and a push-in piece 5 mounted on the mounting base 3,

the pushing piece 5 is used for pushing the buckle 1 to the buckle seat 2, the pull belt 4 is used for pulling the buckle seat 2 to the buckle 1 and used for driving the pushing piece 5 to move;

also comprises a first guiding mechanism 6 arranged on the mounting seat 3,

the first guiding mechanism 6 is used for guiding the pushing-in piece 5 and the pushing-in piece 5 only moves linearly in the moving direction of the buckle 1;

one end of the pull belt 4 is relatively fixed in the moving direction of the buckle 1 through a first connecting piece 41 and the pushing piece 5, the other end of the pull belt 4 is of a toothed belt structure, and the pull belt 4 and the side surface of the mounting seat 3 jointly form a buckle seat 2 accommodating space of a closed loop structure when in operation;

also comprises elastic return means 7, said elastic return means 7 being adapted to return said push-in member 5;

and also comprises a driving mechanism 8,

the output end of the driving mechanism 8 is meshed with the toothed belt of the pull belt 4.

In the working process, the buckle seat 2 is placed in a closed loop structure formed by the pull belt 4 and the mounting seat 3, the buckle 1 is placed at the position of the push-in part 5 on the mounting seat 3, the driving mechanism 8 drives the toothed belt of the pull belt 4 to be meshed, when the output end of the driving mechanism 8 rotates, the pull belt 4 also rotates, when the closed loop structure of the toothed belt of the pull belt 4 is contracted, the buckle seat 2 is gradually pulled towards the buckle 1 by the pull belt 4, the push-in part 5 does not move before the elastic return part does not reach deformation pressure due to the elastic return part 7, at the moment, the buckle 1 is static, after the buckle 1 and the buckle seat 2 are contacted, continuing to drive the toothed belt of the pull belt 4, at this moment, the displacement of the buckle seat 2 is blocked by the side face of the mounting seat 3, the buckle seat 2 is in a static state, at this moment, the alignment state of the buckle 1 and the buckle seat 2 can be adjusted, the accurate assembly of the next action is ensured, the pull belt 4 pulls the first connecting piece 41, the pull belt 4 of the first connecting piece 41 pushes the piece 5, the pushing piece 5 compresses and deforms the elastic return piece, thereby the buckle 1 is further pushed into the buckle seat 2, after the assembly is completed, the driving mechanism 8 reversely drives the toothed belt of the pull belt 4, at this moment, the elastic return piece returns the pushing piece 5, and the assembly of the next buckle 1 and the buckle seat 2 is prepared.

In this embodiment, referring to fig. 1 and 2, and fig. 4 to 7, the first guiding mechanism 6 includes a first guiding groove 61 and a first guiding member 62, the first guiding groove 61 is opened on the mounting base 3 along the moving direction of the buckle 1, the first guiding member 62 is matched with the first guiding groove 61, and the first guiding member 62 is fixed with the pushing member 5;

alternatively, in fig. 5 and 7, the first guide groove 61 and the first guide 62 are more than one.

Alternatively, the first guide 62 may be rectangular in cross-section.

Optionally, the number of the first guiding grooves 61 is one, and the number of the first guiding pieces 62 in one first guiding groove 61 is more than one in the moving direction of the buckle 1.

By providing the first guide mechanism 6, the pushing member 5 can maintain rectilinear motion, and at the same time, when the pushing member 5 is pulled to move by the first connecting member 41, the pushing member 5 will not incline forward at the stressed end and backward at the unstressed end.

In fig. 5 and 7, there are two of the first guide grooves 61 and the first guides 62. The first connecting member 41 and the first guide member 62 have two stress points, which are less likely to be inclined forward and backward.

In this embodiment, referring to fig. 1 and 2, and fig. 4 to 7 and 10, a second guiding slot 411 is provided on a side surface of the mounting seat 3 along a moving direction of the buckle 1, the second guiding slot 411 is communicated with the first guiding slot 61, and the first connecting piece 41 and the first guiding piece 62 are connected and relatively fixed in the moving direction of the buckle 1.

In this embodiment, referring to fig. 2 and 7, the elastic return device 7 is a spring, and the elastic return device 7 is disposed in the first guide groove 61.

In this embodiment, referring to fig. 1 and 2, and fig. 8 to 10, the pushing member 5 is C-shaped at its end. Can effectually guide buckle 1 to central point, the assembly is more accurate.

In this embodiment, referring to fig. 1 and 3, the driving mechanism 8 includes an axial pressing member 81, a worm 82, and a helical internal spline 83;

one end of the worm 82 is coaxially connected with the axial pressing member 81 through a circumferential rotating pair 821, the worm 82 is meshed with the spiral internal spline 83, the spiral internal spline 83 is arranged on the mounting seat 3, and the worm 82 is meshed with a toothed belt of the pull belt.

The worm 82 is pressed by the axial pressing member 81 to move downwards, and the worm 82 is meshed with the spiral internal spline 83, so that the worm 82 rotates when moving downwards, and the axial pressing member 81 does not rotate or is not easy to rotate because the upper ends of the axial pressing member 81 and the worm 82 are matched through the circumferential rotation pair 821. The axial revolute pair in 3 is in a bearing structure, the upper end of the worm 82 corresponds to the outer ring of the bearing, the lower end of the axial pressing member 81 corresponds to the inner ring of the bearing, and steel balls are arranged between the inner ring and the outer ring.

In this embodiment, referring to fig. 4 and 6, and fig. 7 to 10, the mounting base 3 includes a first mounting base 31 and a second mounting base 32, and the first mounting base 31 is higher than the second mounting base 32;

the drawstring 4 and the push-in piece 5 are both installed on the first installation seat 31;

the helical internal spline 83 is provided on the second mount 32, and the toothed belt of the pull belt is clamped by the first mount 31 and the worm 82.

The toothed belt of the pull belt is clamped and meshed through the first mounting seat 31 and the worm 82, other pressing structures are not required to be arranged on the toothed belt, and the structure is simplified.

Alternatively, the axial pressing member 81 is driven manually, or the axial pressing member 81 is driven electrically, hydraulically or by a cylinder. In fig. 1 to 10, manual driving is preferred, occupies a small volume, is convenient to operate, and is replaced by other driving modes, and the linear driving of the electric, hydraulic or air cylinder in the prior art is mature, which is not shown in the drawings.

In this embodiment, referring to fig. 3, the driving mechanism 8 further includes an axial restoring member 84, where the axial restoring member 84 has a tendency to block the approach of the worm 82 to the helical internal spline 83, and the axial restoring member 84 is used for restoring the worm 82. When the worm 82 moves downward to the completion of the assembly of the buckle 1 and the buckle seat 2, the pressure of the axial pressing member 81 is canceled, and the elastic force of the axial return member 84 returns the worm 82.

In fig. 3, the lower end of the worm 82 is of a stepped shaft structure, a stepped hole structure is correspondingly arranged on the second mounting seat, the axial resetting piece 84 is a spring, the axial resetting piece 84 is sleeved on the stepped shaft, and the lower end of the axial resetting piece 84 is in contact with the stepped surface of the stepped hole to realize stress.

In the above embodiments, a housing may be further provided to effectively isolate the internal transmission components, as shown in fig. 8 to 10, which each provide a housing that may be mated with a mounting base, preferably, the housing and the mounting base are removably secured.

In this embodiment, referring to fig. 1, 3, and 7 to 10, the driving mechanism 8 further includes a guiding and limiting rod 85, the guiding and limiting rod 85 is fixed to the axial pressing member 81, and the guiding and limiting rod 85 movably passes through the guiding hole of the mounting seat.

The axial movement of the axial pressing member 81 is effectively guided, and meanwhile, the axial pressing member 81 can be effectively prevented from rotating, so that the operation is more convenient.

In conclusion, the invention can effectively reduce the assembly difficulty and improve the assembly efficiency. The clamping seat 2 can be pulled to the clamping seat 1, the clamping seat 2 can be pushed to the clamping seat 1, the action is performed in stages, the action intervention can be effectively performed, the alignment is performed, and the assembly precision is improved. Has the characteristics of reliable and stable action. The application range is wide, and the device can be suitable for manual driving and automatic driving. The linear motion can be effectively converted into rotary motion, and the structure is simplified. The whole device is small in size. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A device for assembling a buckle in stages is used for installing the buckle on a buckle seat, and is characterized in that,

comprising the following steps:

the mounting seat is provided with a plurality of mounting holes,

a drawstring and a push-in piece which are arranged on the installation seat,

also comprises a first guiding mechanism arranged on the mounting seat,

the first guide mechanism is used for guiding the push-in part and the push-in part only moves linearly in the moving direction of the buckle, and comprises a first guide groove and a first guide part, wherein the first guide groove is formed in the mounting seat along the moving direction of the buckle, the first guide part is matched with the first guide groove, and the first guide part is fixed with the push-in part;

the driving mechanism comprises an axial pressing piece, a worm and a spiral internal spline;

2. The snap-fit staged assembly device of claim 1, wherein:

3. The snap-fit staged assembly device of claim 2, wherein: the side of mount pad is equipped with the second guide way along buckle direction of motion, the second guide way with first guide way intercommunication, first connecting piece with first guide is connected and be in buckle direction of motion is last relatively fixed.

4. A device for phased assembly of snaps in accordance with claim 3, wherein: the elastic return device is a spring and is arranged in the first guide groove.

5. The snap-fit staged assembly device of claim 1, wherein: the tail end of the pushing piece is of a C-shaped structure.

6. The snap-fit staged assembly device of claim 1, wherein: the mounting seat comprises a first mounting seat and a second mounting seat, and the height of the first mounting seat is higher than that of the second mounting seat;

7. The snap-fit staged assembly device of claim 1, wherein: the axial pressing member is driven manually or electrically.

8. The snap-fit staged assembly device of claim 1, wherein: the driving mechanism further comprises an axial resetting piece, the axial resetting piece has a trend of preventing the worm from approaching to the spiral internal spline, and the axial resetting piece is used for resetting the worm.

9. The snap-fit staged assembly device as defined in any one of claims 7-8, wherein: the driving mechanism further comprises a guide limiting rod, the guide limiting rod is fixed with the axial pressing piece, and the guide limiting rod movably penetrates through the guide hole of the mounting seat.