CN115383437A

CN115383437A - Clamp spring installation mechanism and assembly production line

Info

Publication number: CN115383437A
Application number: CN202211016425.2A
Authority: CN
Inventors: 时文静; 李加林; 陈忠源; 胡秋原
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-11-25

Abstract

The application relates to a clamp spring mounting mechanism which is used for assembling a clamp spring on a clamping groove at the end part of a shaft and comprises a shaft positioning device and a clamp spring pressing-in device which are oppositely arranged; the shaft positioning device is provided with a fixed part and a movable part which are oppositely arranged, and a shaft of the clamp spring to be installed is fixed between the fixed part and the movable part; the clamp spring press-in device is provided with a first press-in part and a second press-in part; a buffer gap is arranged between the first press-in part and the second press-in part, and notches are formed at the bottom ends of the first press-in part and the second press-in part to clamp the clamp spring to be installed; when the circlip pressing-in device is driven to move towards the shaft positioning device, the buffer gap is expanded to assemble the circlip into the clamping groove at the end part of the shaft. Adopt this application can realize automatic installation jump ring to the draw-in groove of axle head portion, need not adopt artifical installation, the process continuity is good, and assembly quality's stability is strong, can not produce the jump ring and damage condemned condition.

Description

Clamp spring installation mechanism and assembly production line

Technical Field

The application relates to the technical field of assembly, in particular to a jump ring installation mechanism and an assembly production line.

Background

The snap spring is also called a retainer ring or a snap ring, belongs to one type of fastener, is arranged in a clamping groove at the end part of a shaft of a machine or equipment, and plays a role in preventing axial movement of parts on the shaft.

In the prior art, the clamp spring is installed in a manner that clamp spring pincers are manually utilized to unfold the clamp spring and are embedded into a clamping groove at the end part of the shaft. Because the diameter scope that will strut jump ring clearance to axle leads to the installation to consume time very long, and the processing continuity is not high, also is difficult to guarantee moreover that the jump ring all assembles to the preset position of work piece at every turn on, still can cause the damage of jump ring. It is difficult to ensure the stability of the assembling quality.

Therefore, the defects of high labor cost, poor process continuity, scrapping of the snap spring and poor stability of the assembling quality exist in the mode of manually installing the snap spring at present, and a device for automatically installing the snap spring is urgently needed to solve the problems.

Disclosure of Invention

Based on this, it is necessary to provide a jump ring installation mechanism and assembly line that can install the jump ring automatically to above-mentioned technical problem for there is the human cost height, the process continuity is poor and cause the jump ring to scrap, the poor stability's of assembly quality technical problem in the mode that adopts artifical installation jump ring at present.

On one hand, the clamp spring mounting mechanism is used for assembling a clamp spring on a clamp groove at the end part of a shaft and comprises a shaft positioning device and a clamp spring pressing-in device;

the shaft positioning device is provided with a fixed part and a movable part which are oppositely arranged, a shaft to be provided with a clamp spring is fixed between the fixed part and the movable part, the shaft is provided with at least one clamping groove arranged along the circumferential direction of the shaft, and the clamp spring is arranged in the clamping groove;

the clamp spring press-in device is arranged opposite to the shaft positioning device and is provided with a first press-in part and a second press-in part; the top ends of the first press-in part and the second press-in part are connected, a buffer gap is arranged between the first press-in part and the second press-in part, notches are formed at the bottom ends of the first press-in part and the second press-in part, clamp springs to be mounted can be clamped in the notches, the notches face the clamping grooves on the shaft, and the planes of the notches are parallel to the plane of the clamping grooves;

when the clamp spring to be installed is clamped in the clamp spring press-in device, and the shaft to be installed with the clamp spring is fixed on the shaft positioning device, the clamp spring press-in device is driven to move towards the shaft positioning device, and the buffer gap is expanded to assemble the clamp spring into the clamping groove at the end part of the shaft.

In one embodiment, the notch is in an inverted U shape, and the shape and the size of the notch are matched with those of the clamp spring.

In one embodiment, the plane of the notch is parallel to the plane of the slot; the notch is disposed coplanar with the catch when the circlip is fitted into the catch at the end of the shaft.

In one embodiment, the notches are embedded with ball plungers arranged in pairs; when the clamp spring to be installed is clamped in the notch, the ball plunger presses the outer surface of the lower end of the clamp spring; when the clamp spring is separated from the notch, the ball plunger is pressed into the inner side wall of the notch by the clamp spring.

In one embodiment, the first pressed-in part and the second pressed-in part are integrally arranged, and the thickness of the first pressed-in part and the thickness of the second pressed-in part are both 0.6 to 0.95 times of the thickness of the snap spring.

In one embodiment, the clamp spring mounting mechanism further comprises a shaft feeding device; the shaft feeding device is used for conveying a shaft to be installed to the shaft positioning device;

the axle loading attachment includes:

the charging base is provided with a charging groove and an inclined guide part; and

the inclined conveying mechanism is arranged on the inclined guide part, and the bottom of the inclined conveying mechanism is positioned in the feeding groove; the inclined conveying mechanism is provided with a feeding belt and a plurality of positioning blocks arranged on the feeding belt, and the positioning blocks are vertically arranged along the conveying direction of the feeding belt; the positioning block can be used for clamping the shaft.

In one embodiment, the positioning block is provided with an arc-shaped groove, and the diameter of the arc-shaped groove is matched with the outer diameter of the shaft; the length of the positioning block is smaller than that of the shaft.

In one embodiment, when a positioning block clamped with a shaft reaches the top end of the feeding belt, the movement is stopped; at the moment, the fixed part is abutted against the first end of the shaft to be provided with the clamp spring, and the movable part is abutted against the second end of the shaft by adjusting the distance between the movable part and the fixed part.

In one embodiment, the clamp spring mounting mechanism further comprises a finished product collecting bin; the finished product collecting bin is arranged below the top end of the feeding belt; after the clamp spring is assembled on the shaft, the clamp spring automatically falls into the finished product collecting bin along with the rotation of the feeding belt; the finished product collecting bin comprises a material receiving portion and a material receiving box, the material receiving portion is arranged corresponding to the top end of the feeding belt, the material receiving portion is communicated to an opening of the material receiving box in an arc shape, and the material receiving box is contained in the material receiving portion and can be pulled out of the material receiving portion.

In one embodiment, the clamp spring mounting mechanism further comprises a clamp spring feeding device; the clamp spring feeding device is used for accommodating a clamp spring to be installed and pressing the clamp spring to be installed into the notch;

jump ring material feeding unit includes:

the clamping springs are sequentially placed on the profiling track;

the ejection part is arranged on one side of the profiling track and used for pressing the clamp spring placed on the profiling track tightly and pressing the clamp spring to be installed into the notch; and

and the power source is connected to the ejection piece and used for driving the ejection piece to run along the extending direction of the profiling track.

In one embodiment, the snap spring mounting mechanism further comprises an operation platform, the snap spring feeding device, the shaft positioning device and the snap spring pressing-in device are arranged on the upper surface of the operation platform, the shaft feeding device and the finished product collecting bin are arranged below the operation platform, and the shaft feeding device penetrates through a gap of the operation platform to convey a shaft to the shaft positioning device.

In another aspect, an assembly line is provided that includes the circlip mounting mechanism described above.

Above-mentioned jump ring installation mechanism and assembly line, through the fixed axle of waiting to install the jump ring of axle positioner, jump ring push in the device and set up first portion of impressing and the second portion of impressing and form the notch and come the chucking jump ring of waiting to install, work as the drive jump ring push in the device orientation when axle positioner moves, first portion of impressing with the buffering clearance between the second portion of impressing is propped greatly in order to assemble the jump ring to the draw-in groove of axle tip. The clamp spring is automatically installed on the clamp groove at the end part of the shaft, manual installation is not needed, the process continuity is good, the stability of the assembling quality is high, and the condition that the clamp spring is damaged and scrapped cannot be generated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a circlip mounting mechanism device in one embodiment;

FIG. 2 is a schematic structural view of a shaft loading device in one embodiment;

FIG. 3 is a side view of a shaft loading apparatus in one embodiment;

FIG. 4 is a schematic diagram of a positioning block in one embodiment;

FIG. 5 is a schematic structural view of a shaft positioning device in one embodiment;

FIG. 6 is a schematic view of the general structure of the shaft feeding device and the finished product collecting bin in one embodiment;

FIG. 7 is a side view of a shaft loading device and finished product collection bin in one embodiment;

FIG. 8 is a schematic diagram of a finished product collection bin in one embodiment;

fig. 9 is a schematic structural diagram of the snap spring feeding device in one embodiment;

fig. 10 is a schematic overall structure diagram of the snap spring feeding device and the snap spring pressing device in one embodiment;

fig. 11 is a schematic structural view of a snap spring pressing device in one embodiment;

fig. 12 is a side view of a snap spring press-in device in one embodiment;

FIG. 13 is a schematic structural diagram of a pressing block for clamping a clamp spring in one embodiment;

FIG. 14 is a schematic structural diagram of a clamp spring in one embodiment;

fig. 15 is a schematic structural diagram of the snap spring in one embodiment being assembled into the clamping groove at the end of the shaft.

Wherein the designations in the figures are as follows:

a clamp spring mounting mechanism 1, a clamp spring 2, a shaft 3, a clamping groove 31,

the shaft positioning means 11, the fixed part 111, the movable part 112,

the clamp spring pressing-in device 12, the driving cylinder 121, the linear slide rail 122,

the press-in block 123, the first press-in part 1231, the second press-in part 1232,

a notch 1233, a cushion gap 1234, a ball plunger 1235,

the shaft feeder 13, the loading base 131, the loading chute 1311, the tilt guide 1312,

the inclined conveying mechanism 132, the feeding belt 1321, the positioning block 1322,

a finished product collecting bin 14, a material receiving part 141, a material receiving box 142,

a clamp spring feeding device 15, a profiling track 151, a material ejecting part 152, a power source 153,

a work platform 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

As background art states, the mode that adopts the manual work to install the jump ring at present has the defect that human cost is high, the process continuity is poor and causes the jump ring to scrap, the stability of assembly quality is poor.

In order to solve the problems, the clamp spring mounting mechanism capable of automatically mounting the clamp spring and the assembly production line are creatively provided in the embodiment of the invention, so that the clamp spring is automatically mounted on the clamp groove at the end part of the shaft without manual mounting, the process continuity is good, the stability of the assembly quality is high, and the condition that the clamp spring is damaged and scrapped cannot be generated.

Example 1

In embodiment 1, as shown in fig. 1, there is provided a clip mounting mechanism 1 for mounting a clip 2 to a clip groove 31 at an end of a shaft 3, which includes a shaft positioning device 11 and a clip pressing device 12 disposed opposite to each other.

As shown in fig. 5, the shaft positioning device 11 is provided with a fixing portion 111 and a movable portion 112 which are arranged oppositely, the fixing portion 111 and the movable portion 112 are used for fixing a shaft 3 of the clamp spring 2 to be installed, at least one clamping groove 31 is arranged on the shaft 3 along the circumferential direction of the shaft, and the clamping groove 31 is used for installing the clamp spring 2. In the present embodiment, one end of the shaft 3 is provided with a locking groove 31 arranged along the circumferential direction thereof.

As shown in fig. 11, 12, and 13, the snap spring pressing device 12 includes a first pressing portion 1231 and a second pressing portion 1232; the first portion 1231 of impressing with the top of the second portion 1232 of impressing is connected, first portion 1231 of impressing with be equipped with between the second portion 1232 of impressing buffer clearance 1234, first portion 1231 of impressing with the bottom of second portion 1232 of impressing forms notch 1233, can the chucking jump ring 2 of treating the installation in the notch 1233, notch 1233 orientation draw-in groove 31 setting on the axle 3.

When the clamp spring 2 to be installed is clamped in the clamp spring press-in device 12, and the shaft 3 of the clamp spring 2 to be installed is fixed on the shaft positioning device 11, the clamp spring press-in device 12 is driven to move towards the shaft positioning device 11, and the buffer gap 1234 is expanded to assemble the clamp spring 2 into the clamping groove 31 at the end of the shaft 3.

It can be understood that, as shown in fig. 14, the circlip 2 has a C-shaped structure with a notch for being engaged with the shaft 3. As shown in fig. 15, when the clamp spring 2 is assembled in the clamping groove 31 at the end of the shaft 3, the gap of the clamp spring 2 contacts the outer surface of the shaft 3 first, and the gap is expanded until the gap of the clamp spring 2 is expanded to the diameter of the shaft 3, at this time, the clamp spring 2 is gradually reduced and reset after passing through the outer diameter of the shaft 3, and thus the clamp spring 2 is assembled in the clamping groove 31 at the end of the shaft 3. In this process, the bottom end between the first 1231 and the second 1232 of the jump ring press-in device 12 forms notch 1233 chucking jump ring 2, and along with the breach of jump ring 2 is propped up, the separation of the first 1231 and the second 123 of the press-in portion in the area of the external diameter grow of jump ring 2 simultaneously leads to buffering clearance 1234 being propped up and then resetting, realizes that jump ring 2 assembles in the draw-in groove 31 of the end of shaft 3. Therefore, manual operation can be replaced, and mechanical automatic installation is realized.

In this embodiment, the notch 1233 has an inverted U shape, and the shape and size of the notch 1233 are matched with the shape and size of the clamp spring 2.

In this embodiment, the plane of the notch 1233 is parallel to the plane of the slot 31; the notch 1233 is positioned coplanar with the card slot 31 when the clip spring 2 is fitted into the card slot 2 at the end of the shaft 3.

In this embodiment, as shown in fig. 13, the slot 1233 is embedded with ball plungers 1235 arranged in pairs; when the clamp spring 2 to be installed is clamped in the notch 1233, the ball plunger 1235 compresses the outer surface of the lower end of the clamp spring 2; when the clamp spring 2 is separated from the notch 1233, the ball plunger 1235 is pressed into the inner side wall of the notch 1233 by the clamp spring 2.

In this embodiment, the first press-fitting part 1231 and the second press-fitting part 1232 are integrally provided, and the thickness of each of the first press-fitting part 1231 and the second press-fitting part 1232 is 0.6 to 0.95 times the thickness of the snap spring 2. The groove depth is calculated and tested to be 0.85x of the thickness of the clamp spring 2, so that the clamp spring 2 on the outermost side can be pressed in, but the clamp spring 2 on the second plate cannot be pressed in. When first portion 1231 that impresses with the thickness of second portion 1232 that impresses is when less than 0.6 times of 2 thickness of jump ring, jump ring 2 can not be by the stable joint of notch 1233 and along with first portion 1231 that impresses with the thickness attenuation of second portion 1232 that impresses, notch 1233 joint jump ring 2's stability variation. When the thickness of the first pressed part 1231 and the second pressed part 1232 is more than 0.95 times of the thickness of the clamp spring 2, the stability that the clamp spring 2 is pressed into and clamped in the outermost side is good, but along with the thickening of the first pressed part 1231 and the second pressed part 1232, the probability that the notch 1233 is pressed into the second clamp spring 2 is increased, and the equipment is clamped and crashed. Only when the thickness of the first press-in part 1231 and the thickness of the second press-in part 1232 are both 0.6 to 0.95 times of the thickness of the clamp spring 2, the press-in of the clamp spring 2 at the outermost side can be effectively ensured, but the second clamp spring 2 cannot be pressed. This proves that the thickness of the first pressed part 1231 and the thickness of the second pressed part 1232 can not be directly adopted in the present application, and the effect is best when the thickness of the snap spring 2 is calculated and tested to be 0.85 times of the groove depth. Therefore, the thickness of each of the first pressed portion 1231 and the second pressed portion 1232 is preferably 0.85 times the thickness of the snap spring 2.

In this embodiment, as shown in fig. 1, the snap spring mounting mechanism 1 further includes a shaft feeding device 13; the shaft loading device 13 is used to transport the shaft 3 to be mounted to the shaft positioning device 11.

As shown in fig. 2 and 3, the shaft loading device 13 includes a loading base 131 and an inclined conveying mechanism 132. The charging base 131 is provided with a charging chute 1311 and an inclined guide 1312; the inclined conveying mechanism 132 is installed on the inclined guide part 1312, and the bottom of the inclined conveying mechanism 132 is positioned in the feeding chute 1311; the inclined conveying mechanism 132 is provided with a feeding belt 1321 and a plurality of positioning blocks 1322 arranged on the feeding belt 1321, wherein the positioning blocks 1322 are vertically arranged along the conveying direction of the feeding belt 1321; the positioning block 1322 can clamp the shaft 3.

In this embodiment, as shown in fig. 4, the positioning block 1322 is provided with an arc-shaped groove, and the diameter of the arc-shaped groove matches with the outer diameter of the shaft 3; the positioning block 1322 has a length smaller than that of the shaft 3.

In this embodiment, the movement is stopped when a positioning block 1322 to which the shaft 3 is chucked reaches the top end of the feed belt 1321; at this time, the fixed part 111 abuts against the first end of the shaft 3 to which the clamp spring 2 is to be mounted, and the movable part 112 abuts against the second end of the shaft 3 by adjusting the distance between the movable part 112 and the fixed part 111.

As shown in fig. 5, in the present embodiment, the shaft 3 is positioned by the positioning block 1322 and the movable portion 112, so that the position of the shaft 3 is more stable. The movable part 112 includes a pressing cylinder or a linear motor, preferably a pressing cylinder.

In this embodiment, as shown in fig. 1, the snap spring mounting mechanism 1 further includes a finished product collecting bin 14; the finished product collecting bin 14 is arranged below the top end of the feeding belt 1321; after the clamping spring 2 is assembled on the shaft 3, the clamping spring automatically falls into the finished product collecting bin 14 along with the rotation of the feeding belt 1321. As shown in fig. 7 and 8, the finished product collecting bin 14 includes a material receiving portion 141 and a material receiving box 142, the material receiving portion 141 is disposed corresponding to a top end of the feeding belt 1321, the material receiving portion 141 is communicated to an opening of the material receiving box 142 in an arc shape, and the material receiving box 142 is accommodated in the material receiving portion 141 and can be pulled out from the material receiving portion 141.

In this embodiment, as shown in fig. 1, the snap spring mounting mechanism 1 further includes a snap spring feeding device 15; the clamp spring feeding device 15 is used for containing a clamp spring 2 to be installed and pressing the clamp spring 2 to be installed into the notch 1233.

As shown in fig. 9, the circlip feeding device 15 includes a profile rail 151, an ejector 152, and a power source 153. The clamp springs 2 are sequentially placed on the profiling track 151; the jacking part 152 is arranged on one side of the profiling track 151 and used for pressing the clamp spring 2 placed on the profiling track 151 and pressing the clamp spring 2 to be installed into the notch 1233; the power source 153 is connected to the ejector 152, and is used for driving the ejector 152 to move along the extending direction of the profile track 151.

In this embodiment, as shown in fig. 1, 6, and 7, the snap spring mounting mechanism 1 further includes an operation platform 16, the snap spring feeding device 15, the shaft positioning device 11, and the snap spring pressing device 12 are disposed on an upper surface of the operation platform 16, the shaft feeding device 13 and the finished product collecting bin 14 are disposed below the operation platform 16, and the shaft feeding device 13 passes through a gap of the operation platform 16 to transport the shaft 3 to the shaft positioning device 11.

When the clamp spring installation mechanism is used, as shown in fig. 1, the integral structure of the clamp spring installation mechanism 1 comprises a clamp spring feeding device 15, a clamp spring pressing-in device 12, a shaft feeding device 13, a shaft positioning device 11 and a finished product collecting bin 14, and the functions of automatic feeding of the clamp spring 2, automatic feeding of the shaft 3, automatic assembling of the clamp spring 2 and the shaft 3 and automatic discharging and collecting of finished products are achieved.

As shown in fig. 2, fig. 2 is a schematic structural diagram of the shaft feeding device 13, and the feeding chute 1311 extends to the outside of the working platform 16 for feeding by personnel. The feeding belt 1321 is embedded into the feeding groove 1311, a positioning block 1322 is fixedly locked on the feeding belt 1321, the shaft 3 is automatically clamped into the positioning block 1322 on the feeding belt 1321 along with the movement of the feeding belt 1321 driven by the rolling shaft 3, and the continuous transportation of the shaft 3 is realized. When the shaft 3 reaches the top end of the feeding belt 1321, the clamping spring 2 is installed at a working position.

As shown in fig. 5, fig. 5 is a schematic structural diagram of the shaft positioning device 11, and after the shaft 3 reaches the working position, the shaft 3 is accurately positioned by the positioning block 1322 and the movable portion 112.

As shown in fig. 6 and 7, fig. 6 is a schematic view of the overall structure of the shaft feeding device 13 and the finished product collecting bin 14, and fig. 7 is a side view of the shaft feeding device 13 and the finished product collecting bin 14. The shaft 3 automatically drops into the receiving box 142 along with the rotation of the belt after the operation of the processing position, and the box body of the receiving box 142 can be pulled out for taking materials.

As shown in fig. 9, fig. 9 is a schematic structural diagram of the circlip feeding device 15. The clamp springs 2 are sequentially placed on the profiling track 151, and the power source 153 is connected with the material ejecting part 152 to push the clamp springs 2 to feed. The clamp spring 2 is pressed into the notch 1233 after reaching the top end, and the clamp spring pressing device 12 presses down the top end connecting positions of the first pressing-in part 1231 and the second pressing-in part 1232 by using the air cylinder, so that the clamp spring 2 in the notch 1233 is pressed into the clamping groove 31 on the shaft 3. When all the clamp springs 2 on the profile track 151 are installed, the power source 153 drives the quick clamp connected with the material ejecting part 152 to open for material supplement.

As shown in fig. 7, fig. 7 is a schematic structural diagram of the snap spring pressing device 12. The snap spring press-fitting device 12 includes a driving cylinder 121, a linear slide rail 122, and a press-fitting block 123 including a first press-fitting portion 1231 and a second press-fitting portion 1232, the press-fitting block 123 moves along the linear slide rail 122 and is driven by the driving cylinder 121, the driving cylinder 121 is connected to the press-fitting block 123 through the linear slide rail 122, and the press-fitting block 123 has a notch 1233 and a buffer gap 1234 corresponding to the notch 1233.

Fig. 13 is a schematic structural view of the press-in block 123 for clamping the clip spring 2. Through calculation and experiments, the thickness of the pressing block 123 is 0.85x the thickness of the clamp spring 2, so that the clamp spring 2 on the outermost side can be pressed in, but the second clamp spring 2 cannot be pressed in. A notch milled in the middle of the pressing-in block 123 is used as a buffer gap 1234, and can bear certain deformation at the moment when the snap spring 2 is pressed into the shaft 3. The bulb plunger 1235 is embedded in the lower end of the pressing block 123, so that the clamp spring 2 cannot fall freely under the action of gravity when entering the pressing block 123. When the pressing-in is needed, the spring in the ball plunger 1235 retracts under the action of pressure to release the clamp spring 2.

In the above-mentioned jump ring installation mechanism 1, fix the axle 3 of waiting to install jump ring 2 through axle positioner 11, jump ring press-in device 12 sets up first portion 1231 and the second portion 1232 that impresses and forms notch 1233 and the chucking jump ring 2 that waits to install, when the drive jump ring press-in device 12 orientation when axle positioner 11 moves, first portion 1231 that impresses with the buffering clearance 1234 between the second portion 1232 that impresses is propped up in order to assemble jump ring 2 to the draw-in groove 31 of axle 3 tip. Realized automatic installation jump ring 2 to the draw-in groove 31 of 3 tip of axle on, need not adopt artifical installation, the process continuity is good, and assembly quality's stability is strong, can not produce the condemned condition of jump ring 2 damage.

Example 2

All the technical features of embodiment 1 are included in embodiment 2, but the difference is that in embodiment 2, instead of embodiment 1, one locking groove 31 is provided only at one end of the shaft 3, and the locking groove 31 is further provided at both ends of the shaft 3 along the circumferential direction thereof.

Correspondingly, the snap spring feeding device 15 and the snap spring pressing device 12 in embodiment 2 are both provided with two snap spring feeding devices, and are of a bilateral symmetry structure.

Specifically, in embodiment 2, as shown in fig. 1, there is provided a circlip mounting mechanism 1 for mounting a circlip 2 to a snap groove 31 at an end of a shaft 3, which includes a shaft positioning device 11 and a circlip pressing device 12 that are oppositely disposed.

As shown in fig. 5, the shaft positioning device 11 is provided with a fixed portion 111 and a movable portion 112 which are oppositely arranged, a shaft 3 to be mounted with the snap spring 2 is fixed between the fixed portion 111 and the movable portion 112, at least one clamping groove 31 is arranged on the shaft 3 along the circumferential direction of the shaft, and the clamping groove 31 is used for mounting the snap spring 2. In the present embodiment, two ends of the shaft 3 are respectively provided with a locking groove 31 arranged along the circumferential direction thereof.

As shown in fig. 11, 12, and 13, the snap spring pressing device 12 includes a first pressing portion 1231 and a second pressing portion 1232; the first portion 1231 of impressing with the top of the second portion 1232 of impressing is connected, first portion 1231 of impressing with be equipped with between the second portion 1232 of impressing buffer clearance 1234, first portion 1231 of impressing with the bottom of second portion 1232 of impressing forms notch 1233, can the chucking jump ring 2 of treating the installation in the notch 1233, notch 1233 orientation the last draw-in groove 31 of axle 3 sets up, just notch 1233 place plane with draw-in groove 31 place plane is parallel.

When the clamp spring 2 to be installed is clamped in the clamp spring press-in device 12 and the shaft 3 of the clamp spring 2 to be installed is fixed on the shaft positioning device 11, the clamp spring press-in device 12 is driven to move towards the shaft positioning device 11, and the buffer gap 1234 is enlarged to assemble the clamp spring 2 into the clamping groove 31 at the end of the shaft 3.

It will be appreciated that, as shown in figure 14, the circlip 2 is a C-shaped structure having a notch to snap over the shaft 3. As shown in fig. 15, when the clamp spring 2 is assembled in the clamping groove 31 at the end of the shaft 3, the gap of the clamp spring 2 contacts the outer surface of the shaft 3 first, and the gap is expanded until the gap of the clamp spring 2 is expanded to the diameter of the shaft 3, at this time, the clamp spring 2 is gradually reduced and reset after passing through the outer diameter of the shaft 3, and thus the clamp spring 2 is assembled in the clamping groove 31 at the end of the shaft 3. In this process, the bottom end between the first 1231 and the second 1232 of the jump ring press-in device 12 forms notch 1233 chucking jump ring 2, and along with the breach of jump ring 2 is propped up, the separation of the first 1231 and the second 123 of the press-in portion in the area of the external diameter grow of jump ring 2 simultaneously leads to buffering clearance 1234 being propped up and then resetting, realizes that jump ring 2 assembles in the draw-in groove 31 of the end of shaft 3. Therefore, manual operation can be replaced, and mechanical automatic installation is realized.

In this embodiment, the first press-fitting part 1231 and the second press-fitting part 1232 are integrally provided, and the thickness of each of the first press-fitting part 1231 and the second press-fitting part 1232 is 0.6 to 0.95 times the thickness of the snap spring 2. The groove depth is 0.85x of the thickness of the clamp spring 2 through calculation and experiment, so that the clamp spring 2 on the outermost side can be pressed in, but the clamp spring 2 on the second plate cannot be pressed in. When first portion 1231 that impresses with the thickness of second portion 1232 that impresses is when less than 0.6 times of 2 thickness of jump ring, jump ring 2 can not be by the stable joint of notch 1233 and along with first portion 1231 that impresses with the thickness attenuation of second portion 1232 that impresses, notch 1233 joint jump ring 2's stability variation. When first portion 1231 that impresses with the thickness of second portion 1232 that impresses is when more than 0.95 of jump ring 2 thickness, can guarantee that the outside jump ring 2 impresses and this jump ring 2 of joint stability is good, but along with first portion 1231 that impresses with the thickness thickening of second portion 1232 that impresses, notch 1233 can press the probability grow of second piece jump ring 2, leads to the equipment card to die and the machine of dying. Only when the thickness of the first press-in part 1231 and the thickness of the second press-in part 1232 are both 0.6 to 0.95 times of the thickness of the clamp spring 2, the press-in of the clamp spring 2 at the outermost side can be effectively ensured, but the second clamp spring 2 cannot be pressed. This proves that the thickness of the first pressed part 1231 and the thickness of the second pressed part 1232 can not be directly adopted in the present application, and the effect is best when the thickness of the snap spring 2 is calculated and tested to be 0.85 times of the groove depth. Therefore, the thickness of each of the first pressed portion 1231 and the second pressed portion 1232 is preferably 0.85 times the thickness of the circlip 2.

In this embodiment, as shown in fig. 4, the positioning block 1322 is provided with an arc-shaped groove, and the diameter of the arc-shaped groove matches with the outer diameter of the shaft 3; the length of the positioning block 1322 is smaller than that of the shaft 3.

In this embodiment, as shown in fig. 1, the snap spring mounting mechanism 1 further includes a finished product collecting bin 14; the finished product collecting bin 14 is arranged below the top end of the feeding belt 1321; after the clamping spring 2 is assembled on the shaft 3, the finished product automatically falls into the finished product collecting bin 14 along with the rotation of the feeding belt 1321. As shown in fig. 7 and 8, the finished product collecting bin 14 includes a material receiving portion 141 and a material receiving box 142, the material receiving portion 141 is disposed corresponding to a top end of the feeding belt 1321, the material receiving portion 141 is communicated to an opening of the material receiving box 142 in an arc shape, and the material receiving box 142 is accommodated in the material receiving portion 141 and can be pulled out from the material receiving portion 141.

As shown in fig. 9 and 10, the circlip feeding device 15 includes a profile rail 151, an ejector 152, and a power source 153. The clamp springs 2 are sequentially placed on the profiling track 151; the ejection part 152 is arranged on one side of the profiling track 151 and used for pressing the clamp spring 2 placed on the profiling track 151 and pressing the clamp spring 2 to be installed into the notch 1233; the power source 153 is connected to the ejector 152 for driving the ejector 152 to move along the extending direction of the profile rail 151.

In this embodiment, as shown in fig. 1, fig. 6, and fig. 7, the snap spring mounting mechanism 1 further includes an operation platform 16, the snap spring feeding device 15, the shaft positioning device 11, and the snap spring pressing device 12 are disposed on the upper surface of the operation platform 16, the shaft feeding device 13, and the finished product collecting bin 14 are disposed below the operation platform 16, and the shaft feeding device 13 penetrates through a gap of the operation platform 16 to convey the shaft 3 to the shaft positioning device 11.

When the clamp spring mounting mechanism is used, as shown in fig. 1, fig. 1 is an integral structure of the clamp spring mounting mechanism 1, and the clamp spring mounting mechanism comprises a clamp spring feeding device 15, a clamp spring pressing-in device 12, a shaft feeding device 13, a shaft positioning device 11 and a finished product collecting bin 14, so that the functions of automatic feeding of a clamp spring 2, automatic feeding of a shaft 3, automatic assembling of the clamp spring 2 and the shaft 3 and automatic discharging and collecting of finished products are realized.

As shown in fig. 2, fig. 2 is a schematic structural diagram of the shaft feeding device 13, and the feeding chute 1311 extends out of the working platform 16 for feeding by personnel. The feeding belt 1321 is embedded into the feeding groove 1311, positioning blocks 1322 are fixed to the feeding belt 1321 in a locking manner, the feeding belt 1321 is driven by the rolling shaft 3 to move, and the shaft 3 is automatically clamped into the positioning blocks 1322 on the feeding belt 1321, so that the shaft 3 is continuously transported. When the shaft 3 reaches the top end of the feeding belt 1321, the clamping spring 2 is installed in a working position.

As shown in fig. 6 and 7, fig. 6 is a schematic view of the overall structure of the shaft feeding device 13 and the finished product collecting bin 14, and fig. 7 is a side view of the shaft feeding device 13 and the finished product collecting bin 14. The shaft 3 automatically drops into the receiving box 142 following the rotation of the belt after the operation at the processing station, and the box body of the receiving box 142 can be pulled out for taking material.

As shown in fig. 10, fig. 10 is a schematic structural diagram of the clip spring feeding device 15 and the clip spring pressing device 12. The clamp springs 2 are sequentially placed on the profiling track 151, and the power source 153 is connected with the ejection piece 152 to push the clamp springs 2 to feed. The clamp spring 2 is pressed into the notch 1233 after reaching the top end, and the clamp spring pressing device 12 presses down the top end connecting positions of the first pressing-in part 1231 and the second pressing-in part 1232 by using the air cylinder, so that the clamp spring 2 in the notch 1233 is pressed into the clamping groove 31 on the shaft 3. When all the clamp springs 2 on the profile track 151 are installed, the power source 153 drives the quick clamp connected with the material ejecting part 152 to open for material supplement. Wherein, the clamp spring feeding device 15 and the clamp spring pressing device 12 are both provided with two.

As shown in fig. 7, fig. 7 is a schematic structural diagram of the circlip pressing device 12. The snap spring press-fitting device 12 includes a driving cylinder 121, a linear slide rail 122, and a press-fitting block 123 including a first press-fitting portion 1231 and a second press-fitting portion 1232, the press-fitting block 123 moves along the linear slide rail 122 and is driven by the driving cylinder 121, the driving cylinder 121 is connected to the press-fitting block 123 through the linear slide rail 122, and the press-fitting block 123 has a notch 1233 and a buffer gap 1234 corresponding to the notch 1233.

Fig. 13 is a schematic structural view of the press-in block 123 for clamping the clip spring 2. Through calculation and experiments, the thickness of the pressing block 123 is 0.85x of the thickness of the clamp spring 2, so that the clamp spring 2 on the outermost side can be pressed in, but the clamp spring 2 on the second plate cannot be pressed in. A notch is milled in the middle of the pressing-in block 123 to serve as a buffer gap 1234, which can bear a certain deformation at the moment when the snap spring 2 is pressed into the shaft 3. The bulb plunger 1235 is embedded in the lower end of the pressing block 123, so that the clamp spring 2 cannot fall freely under the action of gravity when entering the pressing block 123. When the pressing-in is needed, the spring in the ball plunger 1235 retracts under the action of pressure to release the clamp spring 2.

In the above-mentioned jump ring installation mechanism 1, through the axle 3 of the fixed jump ring 2 of waiting to install of axle positioner 11, jump ring press-in device 12 sets up first portion of impressing 1231 and the second portion of impressing 1232 formation notch 1233 comes the chucking to wait to install jump ring 2, when the drive jump ring press-in device 12 orientation when the motion of axle positioner 11, first portion of impressing 1231 with buffering clearance 1234 between the second portion of impressing 1232 is strutted in order to assemble two jump rings 2 simultaneously to two draw-in grooves 31 of axle 3 both sides tip. Realized two jump rings of automatic installation 2 to two draw-in grooves 31 of 3 tip of axle, need not adopt artifical installation, the process continuity is good, assembly quality's stability is strong, can not produce 2 condemned circumstances of damaging of jump ring.

The invention also provides an assembly production line which comprises the clamp spring installation mechanism 1. The assembly production line improves the installation efficiency of the snap spring 2, completes the feeding and caching of the shaft 3 and the snap spring 2, and achieves unmanned operation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A jump ring installation mechanism, comprising:

the shaft positioning device is provided with a fixed part and a movable part which are oppositely arranged, a shaft to be provided with a clamp spring is fixed between the fixed part and the movable part, the shaft is provided with at least one clamping groove arranged along the circumferential direction of the shaft, and the clamping spring is arranged in the clamping groove; and

the clamp spring press-in device is arranged opposite to the shaft positioning device; the clamp spring press-in device is provided with a first press-in part and a second press-in part; the top ends of the first press-in part and the second press-in part are connected, a buffer gap is arranged between the first press-in part and the second press-in part, notches are formed at the bottom ends of the first press-in part and the second press-in part, clamp springs to be installed can be clamped in the notches, and the notches face the clamping grooves on the shaft;

2. The circlip mounting mechanism of claim 1 wherein the notch is in the shape of an inverted U, the shape and size of the notch matching the shape and size of the circlip.

3. The circlip mounting mechanism of claim 1 wherein the plane of the notch is parallel to the plane of the groove; the notch is disposed coplanar with the catch when the circlip is fitted into the catch at the end of the shaft.

4. The circlip mounting mechanism as claimed in claim 1 wherein ball plungers are embedded in pairs in the notch; when the clamp spring to be installed is clamped in the notch, the ball plunger presses the outer surface of the lower end of the clamp spring; when the clamp spring is separated from the notch, the ball plunger is pressed into the inner side wall of the notch by the clamp spring.

5. The clip mounting mechanism of claim 1, wherein the first press-fitting portion and the second press-fitting portion are integrally provided, and the thickness of each of the first press-fitting portion and the second press-fitting portion is 0.6 to 0.95 times the thickness of the clip.

6. The circlip mounting mechanism of claim 1 further comprising a shaft feeding device; the shaft feeding device is used for conveying a shaft to be installed to the shaft positioning device;

the axle loading attachment includes:

the inclined conveying mechanism is arranged on the inclined guide part, and the bottom of the inclined conveying mechanism is positioned in the feeding groove; the inclined conveying mechanism is provided with a feeding belt and a plurality of positioning blocks arranged on the feeding belt, and the positioning blocks are vertically arranged along the conveying direction of the feeding belt; the positioning block can clamp the shaft.

7. The circlip mounting mechanism as claimed in claim 6 wherein the locating block is provided with an arc groove, the diameter of the arc groove matching the outer diameter of the shaft; the length of the positioning block is smaller than that of the shaft.

8. The circlip mounting mechanism as claimed in claim 7 wherein when a positioning block with a shaft clamped thereto reaches the top end of the feed belt, the movement is stopped; at the moment, the fixed part is abutted against the first end of the shaft to be provided with the clamp spring, and the movable part is abutted against the second end of the shaft by adjusting the distance between the movable part and the fixed part.

9. The circlip mounting mechanism of claim 8 wherein said circlip mounting mechanism further comprises a finished product collection bin;

the finished product collecting bin is arranged below the top end of the feeding belt; after the clamp spring is assembled on the shaft, the clamp spring automatically falls into the finished product collecting bin along with the rotation of the feeding belt;

the finished product collecting bin comprises a material receiving portion and a material receiving box, the material receiving portion is arranged corresponding to the top end of the feeding belt, the material receiving portion is communicated to the opening of the material receiving box in an arc shape, and the material receiving box is contained in the material receiving portion and can be pulled out of the material receiving portion.

10. The clamp spring mounting mechanism of claim 9, further comprising a clamp spring feeder; the clamp spring feeding device is used for accommodating a clamp spring to be installed and pressing the clamp spring to be installed into the notch;

jump ring material feeding unit includes:

the clamping springs are sequentially placed on the profiling track;

11. The clamp spring mounting mechanism of claim 10 further comprising a work platform, wherein the clamp spring feeding device, the shaft positioning device and the clamp spring pressing device are disposed on an upper surface of the work platform, the shaft feeding device and the finished product collecting bin are disposed below the work platform, and the shaft feeding device passes through a gap of the work platform to convey a shaft to the shaft positioning device.

12. An assembly line comprising a circlip mounting mechanism as claimed in any one of claims 1 to 11.