CN217832573U - C type ring automatic assembly equipment - Google Patents

Abstract

The utility model discloses a C type ring automatic assembly equipment, include: a supply unit including a supply support portion for receiving the C-shaped ring, the supply support portion being expandable or contractible in a radial direction of the C-shaped ring; the expansion unit comprises an expansion jig and an expansion supporting part, the expansion jig and the expansion supporting part are arranged oppositely, and the expansion jig can be slidably connected to the expansion supporting part after penetrating through the C-shaped ring, so that the C-shaped ring is sleeved on the expansion jig after being expanded; the pick-up unit comprises a pick-up head and a release ring which is connected to the pick-up head in a sliding way, the pick-up head moves to the end part of the abutting expansion jig and moves towards the direction close to the expansion supporting part, so that the C-shaped ring is sleeved on the pick-up head; and the assembly unit comprises an assembly supporting part for supporting the workpiece, and when the C-shaped ring is positioned at the assembly station, the C-shaped ring is separated from the ring direction and moves close to the workpiece side, so that the C-shaped ring positioned on the pick-up head is sleeved on the workpiece. The utility model discloses the action is reliable, the assembly is effectual and efficiency is higher.

Description

C type ring automatic assembly equipment

Technical Field

The utility model relates to a C type ring assembly technical field, in particular to C type ring automatic assembly equipment.

Background

In the automated production of pneumatic triplets, one of the steps is the assembly of a C-ring, which is required to fit the C-ring onto the corresponding caliber part.

At present, the C-shaped ring is assembled by directly clamping the C-shaped ring into a groove of a workpiece through manual pressure or mechanical pressure, and parts are easy to damage. At the same time, the C-ring expands and deforms more, destroying the mechanical properties. In addition, the assembly efficiency is low due to the manual assembly mode.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the assembly of current C type ring adopts manual assembly to lead to the poor and low problem of assembly efficiency of assembly effect.

To the technical problem mentioned above, the utility model provides a following technical scheme:

an automatic C-ring assembling apparatus, comprising: a supply unit including a supply support for accommodating a C-shaped ring, the supply support being expandable or contractible in a radial direction of the C-shaped ring; the expansion unit comprises an expansion jig and an expansion supporting part, when the C-shaped ring is positioned at an expansion station, the expansion jig and the expansion supporting part are respectively positioned at two opposite sides of the feeding supporting part, and the expansion jig can be slidably connected to the expansion supporting part after penetrating through the C-shaped ring, so that the C-shaped ring is sleeved on the expansion jig after being expanded; the picking unit comprises a picking head positioned on the upper side of the expansion jig and a separation ring connected to the picking head in a sliding manner, the picking head moves to the end part abutted against the expansion jig and moves towards the direction close to the expansion supporting part, so that the C-shaped ring is sleeved on the picking head; the assembling unit comprises an assembling supporting part used for supporting a workpiece, when the C-shaped ring is located at an assembling station, the picking head moves to the end face of the abutted workpiece, the separation ring is close to the workpiece side to move, and the C-shaped ring on the picking head is sleeved on the workpiece.

The utility model discloses an among the partial implementation, the feed unit includes that fixed support overlaps and is located two at least activities of fixed support cover in the cover and supports the cover, two at least activities support the cover concatenation and form the feed supporting part that is used for holding C type ring, and the activity supports the cover and can follow the radial movement of fixed support cover.

The utility model discloses an among the partial embodiment, a side end face that the cover was supported in the activity is equipped with the opening groove, and adjacent activity supports the cover the opening groove forms the circular support groove that holds C type ring.

In some embodiments of the present invention, the expanding unit further comprises a holding device and a first driving device for driving the holding device to move; in an initial state, the clamping device clamps the expansion jig; when the first driving device drives the clamping device to move to the position where the expansion jig is matched with the C-shaped ring, the clamping device unlocks the expansion jig.

The utility model discloses an among the partial embodiment, the expansion tool shaping is the reducing slender body, the reducing slender body includes big footpath section, path section and is located the changeover portion between big footpath section and the path section, the external diameter of the big footpath section of reducing slender body is greater than the initial internal diameter of C type ring, the path section of reducing slender body with the cooperation of expansion supporting part.

The utility model discloses an among the partial implementation, be equipped with on the terminal surface of expansion supporting part and be used for pegging graft the blind hole of expansion tool, the shape of blind hole with the path section and the transition section of reducing slender body match.

The utility model discloses an in some embodiments, pick up the unit and still including being used for supporting pick up the second drive arrangement that the supporting seat removed is picked up in picking up the supporting seat and the drive of picking up the head, the drive of second drive arrangement the picking up head is kept away from or is close the expansion tool.

In some embodiments of the present invention, the pick-up unit further includes a first reset member located between the pick-up head and the release ring, and a third driving device for driving the release ring to move; in an initial state, under the action of the first reset piece, part of the outer peripheral surface of the pickup head extends out of the outer side of the release ring, and when the third driving device drives the release ring to move towards the side close to the expansion jig, the area of the outer peripheral surface of the pickup head, which is positioned at the outer side of the release ring, is gradually reduced.

The utility model discloses an among the partial implementation, still including being used for driving the switching first transposition actuating mechanism and the second transposition actuating mechanism of C type ring station, first transposition actuating mechanism is used for making the C type ring change to the expansion station by the feed station, second transposition actuating mechanism is used for making the C type ring change to the equipment station by picking up the station.

The utility model discloses an among the partial implementation mode, still include the drive and expand the tool and remove to initial condition's fourth drive arrangement, fourth drive arrangement drive expand the supporting part with the expansion tool is synchronous to keeping away from or being close the clamping device direction removes.

The technical scheme of the utility model prior art relatively has following technological effect:

the utility model provides an among the C type ring automatic assembly equipment, set up the feed unit that is used for supporting C type ring for make the C type ring realize the expansion unit of radial expansion, the C type ring after the expansion picks up the unit, and will pick up the equipment unit of C type ring equipment on the unit to the work piece. The linkage through four assembly units realizes the automatic assembly of the C-shaped ring, the structure is simple, the action is reliable, the assembly efficiency of the C-shaped ring is improved, and the damage of the C-shaped ring is avoided.

Drawings

The objects and advantages of the present invention will be understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of an embodiment of the automatic C-ring assembling apparatus of the present invention;

fig. 2 is another schematic structural view of an embodiment of the automatic C-ring assembling apparatus of the present invention;

FIG. 3 is a schematic structural view of a feeding unit in the automatic C-ring assembling apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an embodiment of the expanding unit and the picking unit in the C-shaped ring automatic assembling apparatus of the present invention

Fig. 5 is a schematic view of the initial position of the expansion station in the automatic C-ring assembling apparatus of the present invention;

FIG. 6 is a schematic view of the expanding action at the expanding station in the automatic C-ring assembling apparatus of the present invention;

fig. 7 is a schematic view of the C-shaped ring automatic assembling apparatus of the present invention after the expansion operation at the expansion station is finished;

fig. 8 is a schematic diagram of the picking action of the picking unit at the expansion station in the automatic C-ring assembling apparatus of the present invention;

fig. 9 is a schematic view of the picking up end of the picking up unit at the expansion station in the automatic C-ring assembling apparatus of the present invention;

fig. 10 is a schematic view illustrating that the expansion unit of the automatic C-ring assembling apparatus of the present invention returns to the initial state;

fig. 11 is a schematic view of an initial state at an assembling station in the automatic C-ring assembling apparatus of the present invention;

fig. 12 is a schematic view of the assembly station of the C-shaped ring automatic assembly apparatus of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 and fig. 2 show a specific embodiment of a C-ring automatic assembling apparatus (hereinafter, referred to as an assembling apparatus) according to the present invention, which is used to install a C-ring 100 on a workpiece 200, specifically, to directly clip the C-ring 100 into a groove of the workpiece 200. The automatic assembling equipment comprises: a supply unit 10 for supporting the C-ring 100, an expansion unit 20 for radially expanding the C-ring 100, a pickup unit 30 for picking up the expanded C-ring 100, and an assembly unit 40 for assembling the C-ring 100 on the pickup unit 30 to the workpiece 200. The automatic assembly of the C-ring 100 is achieved by the above-described linkage of the supply unit 10, the expansion unit 20, the pickup unit 30, and the assembly unit 40.

Specifically, as shown in fig. 2 to 4, the supply unit 10 includes a supply support 11 for accommodating the C-shaped ring 100, and the supply support 11 can expand or contract along a radial direction of the C-shaped ring 100, so that the C-shaped ring 100 can be reliably supported on the supply support 11 when expanding; the expansion unit 20 includes an expansion fixture 21 and an expansion supporting portion 22, when the C-shaped ring 100 is located at the expansion station A2, the expansion fixture 21 and the expansion supporting portion 22 are respectively located at the upper and lower sides of the supply supporting portion 11, and the expansion fixture 21 can be slidably connected to the expansion supporting portion 22 after penetrating through the C-shaped ring 100, so that the C-shaped ring 100 is sleeved on the expansion fixture 21 after being expanded; the pick-up unit 30 comprises a pick-up head 31 positioned on the upper side of the expansion jig 21 and a release ring 32 connected to the pick-up head 31 in a sliding manner, wherein the pick-up head 31 moves and pushes the expansion jig 21 to continue to slide along the expansion supporting part 22, so that the C-shaped ring 100 positioned on the expansion jig 21 is sleeved on the pick-up head 31; the assembly unit 40 includes an assembly support 41 for supporting a workpiece 200, and when the C-ring 100 is located at the assembly station, the pick-up head 31 moves to abut against an end surface of the workpiece 200, and the release ring 32 moves toward the workpiece 200, so that the C-ring 100 located on the pick-up head 31 is fitted over the workpiece 200.

The assembly of the C-shaped ring 100 by the assembly equipment comprises the following steps:

s1, as shown in FIG. 5, controlling the C-shaped ring 100 to be transferred from the feeding station A1 to the expansion station A2, so that the expansion jig 21 and the expansion supporting part 22 are respectively located at two opposite sides of the feeding supporting part 11;

s2, as shown in FIG. 6, controlling the expansion fixture 21 to move towards the side close to the expansion supporting part 22 until the expansion fixture is slidably connected to the expansion supporting part 22, and radially expanding the C-shaped ring 100 on the feeding supporting part 11 under the action of the expansion fixture 21 and sleeving the expansion fixture 21;

s3, as shown in FIG. 8, controlling the pickup unit 30 to move to the side of the expansion fixture 21, and the pickup head 31 pushing the expansion fixture 21 to continue moving along the expansion support 22 until the C-shaped ring 100 on the expansion fixture 21 is sleeved on the pickup head 31;

s4, as shown in fig. 11 and 12, the pick-up unit 30 sleeved with the C-shaped ring 100 is controlled to move to the assembly station A4, the pick-up head 31 is moved to the end face abutting against the workpiece 200, the separation ring 32 is controlled to move toward the workpiece 200, the C-shaped ring 100 positioned on the pick-up head 31 is sleeved on the workpiece 200, and the assembly of the C-shaped ring 100 is completed.

The specific components and operation principles of the supply unit 10, the expansion unit 20, the pickup unit 30, and the assembly unit 40 constituting the assembling apparatus will be described in detail below. As shown in fig. 1 and 2, a plurality of groups, for example, 4 groups of the feeding unit 10, the expanding unit 20, the picking unit 30 and the assembling unit 40 are respectively arranged at each station, so that synchronous assembly of a plurality of groups of workpieces 200 is realized, and the assembly efficiency is improved.

< supply Unit 10>

As shown in fig. 3, the feeding unit 10 includes a fixed support sleeve 12 and at least two movable support sleeves 13 positioned in the fixed support sleeve 12, the movable support sleeves 13 are movable along the radial direction of the fixed support sleeve 12, and the at least two movable support sleeves 13 are spliced to form a feeding support portion 11 for accommodating the C-shaped ring 100. Specifically, the fixed support sleeve 12 is fixedly connected to a feed support frame 14 located on the side of the feed station A1, the feed support frame 14 is provided with a through hole coaxially arranged with the fixed support sleeve 12, and the upper end portion of the fixed support sleeve 12 is provided with a limiting edge 121 for limiting the axial position of the movable support sleeve 13. The movable support sleeves 13 are spliced to form a circular feed support part 11, the outer diameter of the feed support part 11 is smaller than the inner diameter of the fixed support sleeve 12, and a gap of 1-2mm is formed between every two adjacent movable support sleeves 13, so that each movable support sleeve 13 can expand outwards.

More specifically, the upper end surface of the movable support sleeve 13 is provided with a notch groove near the inner wall thereof, and the notch groove of the adjacent movable support sleeve 13 forms a circular support groove for accommodating the C-shaped ring 100. When the C-ring 100 is located in the circular support groove, the supply unit 10 forms a through hole penetrating the C-ring 100.

The feeding support part 11 is further sleeved with an elastic ring 15, and the elastic ring 15 provides an acting force towards the axial direction to the movable support sleeve 13. Specifically, the outer side surface of the movable support sleeve 13 is provided with a groove, the grooves on the adjacent movable support sleeves 13 are spliced to form an annular groove, and the elastic ring 15 is sleeved in the annular groove. In the initial state, the feed support portion 11 is in a retracted state by the elastic ring 15, and the circular support groove is slightly larger than the outer diameter of the C-shaped ring in the initial state. When the C-ring is forced to expand, the feed support 11 can expand radially against the action of the elastic ring 15.

< expansion unit 20>

As shown in fig. 4, the expansion jig 21 of the expansion unit 20 is shaped as a variable diameter elongated body, such as a variable diameter shaft body or a variable diameter pipe body; the reducing slender body includes big footpath section 21a, path section 21b and lies in the changeover portion 21C between big footpath section 21a and path section 21b, the external diameter of the big footpath section 21a of reducing slender body is greater than the initial internal diameter of C type ring 100, the path section 21b of reducing slender body with the cooperation of expansion supporting portion 22. When the expansion fixture 21 moves downward, the C-shaped ring 100 is first engaged with the transition section 21C of the expansion fixture 21 and gradually expands until being sleeved on the large-diameter section 21a of the expansion fixture 21. More specifically, the outer peripheral surfaces of the large-diameter section 21a and the small-diameter section 21b of the expansion jig 21 are cylindrical surfaces, and the outer peripheral surface of the transition section 21c is a conical surface. By adopting the expansion jig 21 with the structure, the stress is uniform when the C-shaped ring is expanded, and the C-shaped ring is prevented from being damaged.

The sliding connection mode between the expansion fixture 21 and the expansion support part 22 is not unique; in a specific embodiment, a blind hole 22a for inserting the expansion jig 21 is disposed on the upper end surface of the expansion supporting portion 22, the shape of the blind hole 22a matches with the small-diameter section 21b and the transition section 21c of the variable-diameter elongated body, and the axial length of the blind hole 22a is greater than the lengths of the small-diameter section 21b and the transition section 21c of the expansion jig 21. When the expanding jig 21 moves toward the expanding support portion 22, the small diameter section 21b and the transition section 21c of the expanding jig 21 are sequentially inserted into the blind hole 22a of the expanding support portion 22, so as to support and fix the expanding jig 21.

The expanding unit 20 further comprises a clamping device 23 for clamping the expanding jig 21 and a first driving device 24 for driving the clamping device 23 to move; in an initial state, i.e. in an initial state where the expansion unit 20 is not performing the expansion operation, the clamping device 23 clamps the expansion jig 21 and positions the expansion jig on the upper side of the supply support 11, and the expansion support 22 is positioned on the lower side of the supply support 11. When the C-shaped ring 100 is expanded, the first driving device 24 is controlled to drive the clamping device 23 to move linearly to the large-diameter section 21a of the expansion jig 21 to be matched with the C-shaped ring 100, so that the expansion of the C-shaped ring 100 is realized. At this time, the clamping device 23 is controlled to unlock the expansion jig 21, since the expansion jig 21 is inserted into the expansion support portion 22 at this time, the C-shaped ring 100 is reliably supported and fixed, and the clamping device 23 unlocks the expansion jig 21, which facilitates the picking operation of the picking unit 30.

Specifically, the clamping device 23 includes a clamping jaw 231 and a clamping driving cylinder 232 for controlling the clamping jaw 231 to switch between the clamping position and the unlocking position.

< pickup Unit 30>

As shown in fig. 4, the pick-up head 31 of the pick-up unit 30 is fixedly supported on a pick-up support base 33, and the pick-up support base 33 is located on the upper side of the pick-up head 31 and is fastened and connected by a fastening screw. The pick support base 33 is linearly movable in the up-and-down direction by the second driving device 34. After the C-ring 100 is expanded onto the expanding fixture 21, the second driving device 34 is controlled to move the pick-up support 33 toward the expanding fixture 21 until the pick-up head 31 pushes the expanding fixture 21 to move downward, so that the C-ring 100 is sleeved on the pick-up head 31, thereby completing the pick-up operation of the C-ring 100.

The pick-up unit 30 further comprises a first restoring member 35 located between the pick-up head 31 and the release ring 32, and a third driving device 36 for driving the release ring 32 to move, and specifically, the first restoring member 35 is a compression spring. In an initial state where the pick-up operation is not performed, under the action of the first returning member 35, a part of the outer peripheral surface of the pick-up head 31 protrudes outside the release ring 32, that is, the lower end surface of the release ring 32 is spaced from the lower end surface of the pick-up head 31 by a set distance, so that the C-shaped ring 100 can be reliably sleeved on the pick-up head 31. When the third driving device 36 drives the release ring 32 to move toward the expansion fixture 21, the area of the outer circumferential surface of the pickup head 31 located outside the release ring 32 is gradually reduced, so that the C-shaped ring 100 sleeved thereon can be removed.

< Assembly Unit 40>

As shown in fig. 2, the assembly support 41 of the assembly unit 40 is mounted on an assembly support bracket 42, the assembly support bracket 42 is spaced apart from the feed support bracket 14, and the expansion unit 20 and the pickup unit 30 are located between the assembly support bracket 42 and the feed support bracket 14. The assembly support 41 comprises a limiting tool for supporting and limiting the position of the workpiece 200, and the upper end of the workpiece 200 is provided with a cylindrical surface for assembling the C-shaped ring 100.

When the C-ring 100 to be assembled moves to the assembling station, that is, the pick-up head 31 of the pick-up unit 30 is located on the upper end surface of the workpiece 200 and is coaxially disposed with the workpiece, at this time, the third driving device 36 is controlled to move the release ring 32, and the release ring 32 pushes the C-ring 100 sleeved on the pick-up head 31 to move downward until the C-ring 100 is sleeved on the cylindrical surface of the workpiece 200, so as to assemble the C-ring 100.

The following section describes the manner in which the C-ring 100 is switched at different stations in the loader.

As shown in fig. 2, the loading device includes a feeding station A1, an expanding station A2, a picking station A3, and an assembling station A4, wherein, along a horizontal direction, the feeding station A1 and the assembling station A4 are arranged at intervals, the expanding station A2 and the picking station A3 are located between the feeding station A1 and the assembling station A4, the expanding station A2 and the picking station A3 are located in a same horizontal area, and the two are arranged at intervals along a longitudinal direction; the loading apparatus further includes a first indexing drive mechanism 50 and a second indexing drive mechanism 60 for switching the stations of the C-ring 100, the first indexing drive mechanism 50 being configured to rotate the C-ring 100 from the feeding station A1 to the expanding station A2, and the second indexing drive mechanism 60 being configured to rotate the C-ring 100 from the picking station A3 to the assembling station A4.

Specifically, the first indexing drive mechanism 50 includes a drive motor or drive cylinder that drives the feed support frame 14 in a horizontal direction. The second indexing drive mechanism 60 includes a drive motor or a drive cylinder for driving the pick-up support 33 to move in the horizontal direction and the vertical direction.

After the second indexing drive mechanism 60 is used to position the C-ring 100 on the pick-up head 31, the expansion unit 20 needs to be returned to the initial state to continue the expansion of the next set of C-rings 100. Therefore, as shown in fig. 4, the loading apparatus further includes a fourth driving device 70 for driving the expansion fixture 21 to move to the initial state, and the fourth driving device 70 drives the expansion support 22 and the expansion fixture 21 to move synchronously in a direction away from or close to the clamping device 23.

The rigging equipment still include following step after picking up unit 30 and picking up C type ring 100:

s5. As shown in fig. 9, the pickup unit 30 is controlled to move upward to an initial position. Specifically, the second indexing drive mechanism 60 is controlled to drive the pick-up support seat 33 to move in the horizontal direction and the vertical direction, so that the pick-up unit 30 moves to the initial position located at the upper region of the expansion fixture 21 to perform the pick-up operation of the next group of C-shaped rings 100.

S6, as shown in the figures 9 and 10, controlling the expansion jig 21 to move to the position of the clamping device 23, and controlling the clamping device 23 to clamp the expansion jig 21; specifically, the fourth driving device 70 is controlled to move the expansion support 22 and the expansion fixture 21 upward synchronously, when the large diameter portion of the expansion fixture 21 moves to the area where the clamping device 23 is located, the clamping device 23 is controlled to clamp the expansion fixture 21, the fourth driving device 70 is controlled to move the expansion support 22 downward, and the expansion fixture 21 and the expansion support 22 are disconnected and move to the initial position respectively.

After the expansion unit 20 is moved to the initial position, the method further comprises the following steps:

s7, as shown in FIG. 11, controlling the feeding unit 10 to move to the feeding station A1. Specifically, the first indexing drive mechanism 50 is controlled to drive the feed carriage 14 to move in the horizontal direction to the feed station A1 for the feed preparation operation of the next set of C-rings 100.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the present invention.

Claims (10)

1. An automatic C-shaped ring assembling device is characterized by comprising:

a supply unit including a supply support portion for receiving a C-shaped ring, the supply support portion being expandable or contractible in a radial direction of the C-shaped ring;

the expansion unit comprises an expansion jig and an expansion supporting part, when the C-shaped ring is positioned at an expansion station, the expansion jig and the expansion supporting part are respectively positioned at two opposite sides of the feeding supporting part, and the expansion jig can be slidably connected to the expansion supporting part after penetrating through the C-shaped ring, so that the C-shaped ring is sleeved on the expansion jig after being expanded;

the picking unit comprises a picking head positioned on the upper side of the expansion jig and a separation ring connected to the picking head in a sliding manner, the picking head moves to the end part abutted against the expansion jig and moves towards the direction close to the expansion supporting part, so that the C-shaped ring is sleeved on the picking head;

the assembling unit comprises an assembling supporting part used for supporting a workpiece, when the C-shaped ring is located at an assembling station, the picking head moves to the end face of the abutted workpiece, the separation ring is close to the workpiece side to move, and the C-shaped ring on the picking head is sleeved on the workpiece.

2. The automatic C-ring assembling apparatus according to claim 1, wherein said feeding unit comprises a fixed support sleeve and at least two movable support sleeves in the fixed support sleeve, said at least two movable support sleeves are spliced to form a feeding support portion for accommodating the C-ring, and the movable support sleeves are movable in a radial direction of the fixed support sleeve.

3. The automatic C-shaped ring assembling equipment according to claim 2, characterized in that a notch groove is formed in one end face of each movable support sleeve, and a circular support groove for accommodating the C-shaped ring is formed in the notch groove of each adjacent movable support sleeve.

4. The automatic C-ring assembling apparatus according to claim 1, wherein said expanding unit further comprises a clamping means and a first driving means for driving said clamping means to move; in an initial state, the clamping device clamps the expansion jig; when the first driving device drives the clamping device to move to the position where the expansion jig is matched with the C-shaped ring, the clamping device unlocks the expansion jig.

5. The automatic C-shaped ring assembling equipment according to claim 4, wherein the expansion jig is formed into a variable diameter elongated body, the variable diameter elongated body comprises a large diameter section, a small diameter section and a transition section located between the large diameter section and the small diameter section, the outer diameter of the large diameter section of the variable diameter elongated body is larger than the initial inner diameter of the C-shaped ring, and the small diameter section of the variable diameter elongated body is matched with the expansion supporting portion.

6. The automatic C-shaped ring assembling equipment according to claim 5, wherein a blind hole for inserting the expansion jig is formed in the end face of the expansion support portion, and the shape of the blind hole is matched with the small-diameter section and the transition section of the reducing elongated body.

7. The automatic C-ring assembling apparatus as claimed in claim 1, wherein said pick-up unit further comprises a pick-up support for supporting said pick-up head and a second driving device for driving said pick-up support to move, said second driving device driving said pick-up head to move away from or close to said expansion jig.

8. The automated C-ring assembling apparatus according to claim 7, wherein said picking unit further comprises a first restoring member between said picking head and said release ring and a third driving means for driving said release ring to move; in an initial state, under the action of the first reset piece, part of the outer peripheral surface of the pickup head extends out of the outer side of the release ring, and when the third driving device drives the release ring to move towards the side close to the expansion jig, the area of the outer peripheral surface of the pickup head, which is positioned at the outer side of the release ring, is gradually reduced.

9. The automatic C-ring assembling equipment according to claim 1, further comprising a first indexing driving mechanism and a second indexing driving mechanism for driving and switching the C-ring stations, wherein the first indexing driving mechanism is used for enabling the C-ring to be rotated from the feeding station to the expanding station, and the second indexing driving mechanism is used for enabling the C-ring to be rotated from the picking station to the assembling station.

10. The apparatus of claim 4, further comprising a fourth driving device for driving the expansion fixture to move to the initial state, wherein the fourth driving device drives the expansion support and the expansion fixture to move away from or close to the clamping device synchronously.

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