Inner retainer ring transferring and pressing mechanism and assembling equipment

Abstract

The utility model discloses an inner collar transfer press-fitting mechanism and assembly equipment, and relates to the technical field of inner collar assembly equipment, specifically, the inner collar transfer press-fitting mechanism comprises: a transfer assembly, the inner wall of which is a conical cylindrical structure; the telescopic end of the translation air cylinder is connected with the transferring assembly, and the translation air cylinder is used for driving the transferring assembly to move at the first stroke end point and the second stroke end point; a first pressure head assembly for pressing the inner clamping ring from the large-diameter end of the transfer assembly and a first press-fitting cylinder for driving the first pressure head assembly to act are arranged at the first stroke end point; according to the inner clamping ring transferring and pressing mechanism and the assembling equipment, through the design of the conical inner cavity of the transferring assembly, the single inner clamping ring is assembled in the transferring assembly firstly, the opening size and the overall radius of the single inner clamping ring are reduced, then the inner clamping ring is conveniently assembled to a DO section or a VL section, and therefore the assembling efficiency and the percent of pass are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inner clamp ring assembly equipment, and more specifically, to an inner clamp ring transfer and press-fitting mechanism. In addition, the utility model also relates to an inner clamp ring assembly equipment including the inner clamp ring transfer and press-fitting mechanism. Background Art

[0002] In the automotive field, many parts are gradually being assembled automatically instead of manually. One of them is the assembly of the inner ring of the DO joint or VL joint. The DO joint or VL joint is an important component of the automotive system. Its main functions are to assist driving and steering, and power transmission. Therefore, the assembly of the inner ring of the DO joint or VL joint is extremely important to the operational safety of the entire vehicle.

[0003] In the prior art, the assembly of the inner clamping ring of the DO joint or VL joint still requires manual assembly because the assembly effect of the automated assembly line is not ideal. However, the manual assembly of the inner clamping ring is difficult, and there are problems such as low efficiency and poor pass rate.

[0004] In summary, how to provide an inner clamping ring transfer and pressing mechanism and assembly equipment that can solve the problems of low manual assembly efficiency and poor pass rate is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide an inner clamping ring transfer and pressing mechanism. Through the conical inner cavity design of the transfer component, a single inner clamping ring is first assembled in the transfer component to reduce its opening size and overall radius, and then it is convenient to assemble it to the DO section or VL section, thereby improving the assembly efficiency and pass rate.

[0006] Another object of the present utility model is to provide an assembly device including the above-mentioned inner clamping ring transfer and press-fitting mechanism, which can solve the same technical problem.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] An inner clamping ring transfer and pressing mechanism is used for assembling the inner clamping ring, comprising:

[0009] The transfer component has a conical cylindrical inner wall;

[0010] A translation cylinder, the telescopic end of which is connected to the transfer assembly, is used to drive the transfer assembly to move at the first stroke endpoint and the second stroke endpoint; a first ram assembly for pressing the inner retaining ring from the large diameter end of the transfer assembly, and a first pressing cylinder for driving the first ram assembly to move are provided at the first stroke endpoint; a second ram assembly for pressing the inner retaining ring from the small diameter end of the transfer assembly, and a second pressing cylinder for driving the second ram assembly to move are provided at the second stroke endpoint; a plurality of groups of radially retractable limiting teeth are provided on the outer circumference of the first ram assembly for abutting the end face of the inner retaining ring, and the maximum rotation radius of the free end of the limiting teeth is not greater than the inner diameter of the large diameter end of the transfer assembly.

[0011] Preferably, a feed port is provided on the side wall of the large diameter end of the transfer assembly for allowing the inner retaining ring to enter the inner cavity of the transfer assembly, and a baffle or a baffle ring is provided on the large diameter end of the transfer assembly for limiting the inner retaining ring from escaping from the large diameter end of the transfer assembly.

[0012] Preferably, a through hole is provided on the side wall of the inner retaining ring at the press-fitting position in the transfer assembly, and a second sensor is fixedly provided at the end point of the first stroke through a second bracket for detecting whether the inner retaining ring is pressed into the specified position in the transfer assembly by the first pressure head assembly.

[0013] Preferably, a lifting cylinder is provided between the telescopic end of the translation cylinder and the transfer assembly, and the axes of the lifting cylinder and the translation cylinder are perpendicular.

[0014] Preferably, a support seat is provided at the first stroke end point of the transfer assembly, which can abut against the small-diameter end of the transfer assembly and is used to provide support for the transfer assembly along the centerline direction.

[0015] Preferably, the first press-fitting cylinder and the second press-fitting cylinder are relatively fixed via a second cylinder fixing seat, and guide shafts are provided at the ends of the first pressing head assembly and the second pressing head assembly, and the guide shafts are slidably mounted on the second cylinder fixing seat.

[0016] An inner clamping ring assembly device comprises the inner clamping ring transfer and pressing mechanism described in any one of the above items.

[0017] Preferably, it further comprises a feeding channel, a material sorting assembly vertically connected to the feeding channel, a push plate capable of sliding through the feeding channel, and a feeding cylinder for driving the push plate;

[0018] The height of the feeding channel is 1-2 times the thickness of the inner clamping ring, and the thickness of the push plate is not greater than the thickness of the inner clamping ring;

[0019] The discharge port of the feeding channel coincides with the feed port of the transfer assembly at the end point of the first stroke.

[0020] Preferably, the material sorting component includes a storage shaft perpendicular to the feeding channel, and the outer side wall of the storage shaft is provided with a protrusion along the length direction for clamping the open groove of the inner clamping ring. The gap between the bottom end of the storage shaft and the bottom wall of the feeding channel is 1-2 times the thickness of the inner clamping ring, and the top end of the storage shaft is slid into the gravity ring.

[0021] Preferably, a first sensor is fixedly provided on the outside of the storage shaft via a first bracket, for detecting the number of the inner clamping rings remaining in the storage shaft.

[0022] Compared with the prior art, the inner clamping ring transfer and pressing mechanism provided by the present invention has at least the following beneficial effects:

[0023] The present application sets up a transfer assembly with a tapered inner cavity, and presses the inner clamping ring in through a first press head assembly. During the pressing process, the opening size of the inner clamping ring is reduced, and the inner diameter is reduced. The inner clamping ring is then moved to the pressing position together with the transfer assembly, and is pressed into the DO section or VL section through a second press head assembly. During the process, the inner clamping ring is always in a small inner diameter state, which is convenient for installation and helps to improve installation efficiency and pass rate.

[0024] The inner clamping ring assembly equipment provided by the present invention includes the above-mentioned inner clamping ring transfer and pressing mechanism, and has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a specific inner clamp ring assembly device provided by the present utility model;

[0027] Figure 2 This is a schematic diagram of a specific loading assembly and transfer assembly provided by the present utility model;

[0028] Figure 3 Provided by the utility model Figure 2 Side view of

[0029] Figure 4 This is a schematic structural diagram of a specific press-fit assembly provided by the present utility model;

[0030] Figure 5 This is a schematic structural diagram of the transfer assembly provided by the present invention at the first stroke endpoint;

[0031] Figure 6 This is a cross-sectional view of the transfer assembly provided by the present invention at the end point of the first stroke;

[0032] Figure 7 This is a structural schematic diagram of a specific working base assembly provided by the utility model.

[0033] Figure 1-Figure 7 middle:

[0034] 1. Loading assembly; 2. Press-fitting assembly; 3. Tool base assembly; 4. Loading cylinder; 5. Fixed seat; 6. First cylinder fixed seat; 7. Push plate; 8. Buffer; 9. Storage shaft; 10. First sensor; 11. First bracket; 12. Second sensor; 13. Second bracket; 14. Drag chain; 15. Translation cylinder; 16. Lifting cylinder; 17. Transfer assembly; 18. Support seat; 19. First press-fitting cylinder; 20. Second press-fitting cylinder; 21. First pressure head assembly; 22. Second pressure head assembly; 23. Guide shaft; 24. Second cylinder fixed seat; 25. Support frame; 26. Positioning tool; 27. Third sensor; 28. Third bracket. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The core of this utility model is to provide an inner clamping ring transfer and pressing mechanism. Through the tapered inner cavity design of the transfer component, a single inner clamping ring is first assembled in the transfer component to reduce its opening size and overall radius, and then it is convenient to assemble it to the DO section or VL section, thereby improving the assembly efficiency and qualification rate.

[0037] Another core of the present invention is to provide an inner clamping ring assembly device including the inner clamping ring transfer and press-fitting mechanism.

[0038] Please refer to Figures 1-6 , an inner clamping ring transfer and pressing mechanism, used for assembling the inner clamping ring, comprising:

[0039] The transfer component 17 has an inner wall of a conical cylindrical structure;

[0040] The translation cylinder 15, the telescopic end of which is connected to the transfer assembly 17, is used to drive the transfer assembly 17 to move at the first stroke endpoint and the second stroke endpoint; the first stroke endpoint is provided with a first ram assembly 21 for pressing the inner retaining ring from the large diameter end of the transfer assembly 17, and a first pressing cylinder 19 for driving the first ram assembly 21 to move; the second stroke endpoint is provided with a second ram assembly 22 for pressing the inner retaining ring from the small diameter end of the transfer assembly 17, and a second pressing cylinder 20 for driving the second ram assembly 22 to move; the outer circumference of the first ram assembly 21 is provided with several groups of radially retractable limiting teeth for abutting the end face of the inner retaining ring, and the maximum rotation radius of the free end of the limiting teeth is not greater than the inner diameter of the large diameter end of the transfer assembly 17.

[0041] In actual operation, in the initial state, the transfer assembly 17 is at the first stroke end point;

[0042] Manually or with the help of other auxiliary equipment, the inner clamping ring is placed from the large diameter end of the transfer assembly 17, and under the action of the first pressing cylinder 19, the first pressing head assembly 21 is driven to extend into the transfer assembly 17. During the process, the limiting teeth on the outer periphery of the first pressing head assembly 21 contact the end face of the inner clamping ring, driving the inner clamping ring to enter the inner cavity of the transfer assembly 17 together. As the entry depth increases, the inner diameter cross-sectional radius of the transfer assembly 17 decreases, the limiting teeth shrink radially inward, and the inner clamping ring adaptively reduces the opening size and its own inner diameter to match the inner diameter of the inner cavity cross-sectional area of the transfer assembly 17 until it moves to the farthest stroke end point of the first pressing head assembly 21. At this time, the inner clamping ring is fixed in the inner cavity of the transfer assembly 17, and the first pressing cylinder 19 drives the first pressing head assembly 21 to reset;

[0043] The translation cylinder 15 drives the transfer assembly 17 to the second stroke end point. At this time, under the action of the second pressing cylinder 20, the second pressing head assembly 22 is driven to penetrate the inner cavity of the transfer assembly 17. During this process, the second pressing head assembly 22 abuts the end face of the inner clamping ring, causing it to continue to move until it is ejected from the small diameter end of the transfer assembly 17. Before ejection, the installation position of the DO section or VL section should be aligned with the small diameter end of the transfer assembly 17 to ensure that the inner clamping ring can directly reach the installation position after leaving the inner cavity of the transfer assembly 17 and increase its inner diameter to complete the installation.

[0044] Then the translation cylinder 15 drives the transfer assembly 17 to reset.

[0045] Therefore, the first pressing cylinder 19, the second pressing cylinder 20, the first pressing head assembly 21, and the second pressing head assembly 22 together constitute the pressing assembly 2. The two pressing heads in the pressing assembly 2 can adopt the same structure when designing. For example, both adopt the form of the first pressing head assembly 21, the central body of which is cylindrical or pie-shaped, and its diameter is not greater than the minimum inner diameter of the inner cavity of the transfer assembly 17, and the outer periphery of the central body is radially telescopically provided with limiting teeth, and an elastic member is provided between the limiting teeth and the central body along the direction of relative movement, so that the first pressing head assembly 21 can adaptively adjust its own maximum radius when passing through the inner cavity of the transfer assembly 17; and in some embodiments, the second pressing head assembly 22 is used to only set the central body, and its diameter is not greater than the minimum inner diameter of the inner cavity of the transfer assembly 17.

[0046] In some embodiments, the inner cavity of the transfer component 17 is a conical structure, which is used to allow the inner retaining ring to complete necking. However, in some embodiments, a cylindrical structure of a certain length is set at the small diameter end of the transfer component 17, such as a cylindrical structure of 5-10 mm. In this section of the inner cavity of the transfer component 17, the inner retaining ring no longer necks, but can maintain a good relative position relationship with the transfer component 17, so as to ensure the relative position relationship between the inner retaining ring and the transfer component 17 when the translation cylinder 15 is actuated.

[0047] In some embodiments, as Figure 5 and Figure 6 As shown, a feed port is provided on the side wall of the large diameter end of the transfer assembly 17 for allowing the inner retaining ring to enter the inner cavity of the transfer assembly 17 , and a baffle or baffle ring is provided on the large diameter end of the transfer assembly 17 for limiting the inner retaining ring from escaping from the large diameter end of the transfer assembly 17 ;

[0048] Setting the feed port of the transfer component 17 on the side wall helps to load the material with the help of the loading component 1 to realize automated operation. Only one inner retaining ring is loaded at a time. At the same time, adding a baffle or a baffle ring can effectively prevent the inner retaining ring from escaping from the large diameter end of the transfer component 17.

[0049] In some embodiments, as Figure 5 As shown, a through hole is provided on the side wall of the inner retaining ring at the press-fitting position in the transfer assembly 17, and a second sensor 12 is fixedly provided at the first stroke end point via a second bracket 13 for detecting whether the inner retaining ring is press-fitted to the specified position in the transfer assembly 17 by the first press head assembly 21;

[0050] The second sensor 12 is preferably a through-type photoelectric sensor, that is, the through hole in the side wall of the transfer component 17 is a through hole that passes through the corresponding side wall. A pair of through-type photoelectric sensors are set at the end point of the first stroke, and the through-type route is preferably perpendicular to the movement route of the transfer component 17. When the inner clamping ring is pressed into the specified position in the transfer component 17, the inner clamping ring just blocks the through hole in the side wall of the transfer component 17, that is, blocks the through-type route of the photoelectric sensor, and the photoelectric sensor feedback is high level. If the inner clamping ring is not pressed into place, or there is a missing component, the through hole in the side wall of the transfer component 17 will not be blocked, that is, the through-type route of the photoelectric sensor is unobstructed, and the photoelectric sensor feedback is low level. The level signal fed back by the photoelectric sensor can be used to determine whether the inner clamping ring is missing or wrongly installed.

[0051] In some embodiments, a lifting cylinder 16 is provided between the telescopic end of the translation cylinder 15 and the transfer assembly 17 , and the lifting cylinder 16 is perpendicular to the axis of the translation cylinder 15 ;

[0052] like Figure 2 As shown, a fixed seat 5 is provided, and a slider that slides relative to the fixed seat 5 is provided, the two ends of the translation cylinder 15 are respectively connected to the slider and the fixed seat 5, and the two ends of the lifting cylinder 16 are respectively connected to the slider and the transfer component 17, or one end of the lifting cylinder 16 is connected to the slider, and the other end is connected to the transfer component 17 through a connecting plate, and a drag chain 14 is provided to accommodate the air pipe connected to the lifting cylinder 16, so that the transfer component 17 obtains the ability to move horizontally and vertically at the same time, thereby improving the flexibility of the arrangement of the first stroke end point and the second stroke end point of the transfer component 17.

[0053] In some embodiments, as Figure 2 and Figure 5 As shown, a support seat 18 is provided at the first stroke end point of the transfer assembly 17, which can abut against the small diameter end of the transfer assembly 17 to provide support for the transfer assembly 17 along the centerline direction;

[0054] like Figure 6 As shown, when the first pressing head assembly 21 presses the inner retaining ring, a downward force is generated on the transfer assembly 17. At this time, a support seat 18 is set at the bottom of the transfer assembly 17, which can provide an upward supporting force for the transfer assembly 17, thereby ensuring the stable position of the transfer assembly 17 and effectively reducing the force transmission from the transfer assembly 17 to the translation cylinder 15.

[0055] In some embodiments, as Figure 4 As shown, the first press-fitting cylinder 19 and the second press-fitting cylinder 20 are relatively fixedly arranged by the second cylinder fixing seat 24, and the ends of the first pressing head assembly 21 and the second pressing head assembly 22 are both provided with a guide shaft 23, and the guide shaft 23 is slidably installed with the second cylinder fixing seat 24;

[0056] By providing the guide shaft 23 , the linearity of the movement of the first pressing head assembly 21 and the second pressing head assembly 22 is ensured.

[0057] In addition to the inner clamping ring transfer and press-fitting mechanisms disclosed in the above-mentioned embodiments, the present invention also provides an inner clamping ring assembly device including the above-mentioned inner clamping ring transfer and press-fitting mechanism.

[0058] like Figure 1 As shown, the inner clamp ring assembly equipment also includes a feeding channel, a material sorting component vertically connected to the feeding channel, a push plate 7 that can slide through the feeding channel, and a feeding cylinder 4 that drives the push plate 7;

[0059] The height of the feeding channel is 1-2 times the thickness of the inner clamping ring, and the thickness of the push plate 7 is not greater than the thickness of the inner clamping ring;

[0060] The discharge port of the loading channel coincides with the feed port of the transfer assembly 17 at the end point of the first stroke.

[0061] The feeding channel, the material handling assembly, the push plate 7 and the feeding cylinder 4 together constitute the feeding assembly 1, which is used to push the inner clamping rings stored in the material handling assembly to the discharge port of the feeding channel one by one under the action of the push plate 7, and then enter the transfer assembly 17 through the feed port of the transfer assembly 17;

[0062] By limiting the height of the feeding channel and the thickness of the push plate 7, the number of inner clamping rings fed each time is limited to one, avoiding the jamming problem caused by installing multiple inner clamping rings at the same time;

[0063] like Figure 2 As shown, the first cylinder fixing seat 6 is fixed to the fixing seat 5, and the two ends of the feeding cylinder 4 are respectively connected to the first cylinder fixing seat 6 and the push plate 7, and the surface of the first cylinder fixing seat 6 is provided with a slide rail for the push plate 7 to slide, and the tail end of the slide rail is provided with a buffer 8, that is, when the push plate 7 returns, it can avoid violent collision under the action of the buffer 8.

[0064] In some embodiments, as Figure 2 and Figure 3 As shown, the material sorting assembly includes a storage shaft 9 perpendicular to the feeding channel. The outer peripheral side wall of the storage shaft 9 is provided with a protrusion along the length direction for clamping the opening groove of the inner clamping ring. The gap between the bottom end of the storage shaft 9 and the bottom wall of the feeding channel is 1-2 times the thickness of the inner clamping ring. The top end of the storage shaft 9 is slidably sleeved into the gravity ring.

[0065] like Figure 2As shown, a protrusion is provided on the side wall of the storage shaft 9 so that the opening of the inner clamping ring is just clamped on the protrusion, thereby limiting the position of the inner clamping ring and preventing it from rotating, thereby obtaining a correct assembly posture; and by controlling the gap between the bottom end of the storage shaft 9 and the bottom wall of the feeding channel, only one inner clamping ring is separated from the storage shaft 9 each time, avoiding the release of multiple inner clamping rings at a single time;

[0066] At the same time, a gravity ring is added to press the inner clamping ring in the storage shaft 9, pushing it away from the storage shaft 9, thereby ensuring the continuity of production.

[0067] In some embodiments, a first sensor 10 is fixedly provided on the outside of the storage shaft 9 via a first bracket 11 for detecting the number of remaining inner collars in the storage shaft 9;

[0068] The first sensor 10 is preferably a through-beam photoelectric sensor, which has the same principle as the second sensor 12 and feeds back the number of remaining inner clamping rings through the feedback level signal. When the number is lower than the set value, the inner clamping rings are replenished.

[0069] In actual production, the DO section or VL section is generally manually transported to the second stroke end point of the transfer assembly 17 to complete the assembly of the inner clamping ring; in some embodiments, the tooling base assembly 3 is used to transport the DO section or VL section;

[0070] Specifically, Figure 7 As shown, the tooling base assembly 3 includes a support frame 25, a positioning tooling 26 slidably installed or plugged into the support frame 25, and a third sensor 27 fixed to the positioning tooling 26 through a third bracket 28. The third sensor 27 is preferably a through-beam photoelectric sensor, and its principle is consistent with that of the second sensor 12. It is used to detect whether the DO section or VL section in the positioning tooling 26 is missing. The relative movement between the positioning tooling 26 and the support frame 25 can be achieved by manual movement, robotic arm grasping, or assembly line transmission.

[0071] For the structures of other parts of the inner clamp ring assembly equipment, please refer to the prior art and will not be described in detail in this article.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The above describes in detail the inner clamping ring transfer and press-fitting mechanism and assembly equipment provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An inner clamping ring transfer and pressing mechanism, used for assembling the inner clamping ring, characterized in that: include: The transfer component (17) has an inner wall with a conical cylindrical structure; A translation cylinder (15) has a telescopic end connected to the transfer assembly (17) for driving the transfer assembly (17) to move at a first stroke end point and a second stroke end point; a first pressing head assembly (21) for pressing the inner retaining ring from the large diameter end of the transfer assembly (17) and a first pressing cylinder (19) for driving the first pressing head assembly (21) are provided at the first stroke end point; a second pressing head assembly (22) for pressing the inner retaining ring from the small diameter end of the transfer assembly (17) and a second pressing cylinder (20) for driving the second pressing head assembly (22) are provided at the second stroke end point; the outer circumference of the first pressing head assembly (21) is provided with a plurality of groups of radially telescopic limiting teeth for abutting the end face of the inner retaining ring, and the maximum rotation radius of the free end of the limiting teeth is not greater than the inner diameter of the large diameter end of the transfer assembly (17).

2. The inner clamping ring transfer and pressing mechanism according to claim 1, characterized in that: The side wall of the large diameter end of the transfer component (17) is provided with a feed port for allowing the inner retaining ring to enter the inner cavity of the transfer component (17), and the large diameter end of the transfer component (17) is provided with a baffle or a baffle ring for limiting the inner retaining ring from escaping from the large diameter end of the transfer component (17).

3. The inner clamping ring transfer and pressing mechanism according to claim 1, characterized in that: A through hole is provided on the side wall of the inner retaining ring at the press-fitting position in the transfer assembly (17), and a second sensor (12) is fixedly provided at the end point of the first stroke via a second bracket (13) for detecting whether the inner retaining ring is press-fitted to a specified position in the transfer assembly (17) by the first pressing head assembly (21).

4. The inner clamping ring transfer and pressing mechanism according to claim 1, characterized in that: A lifting cylinder (16) is provided between the telescopic end of the translation cylinder (15) and the transfer assembly (17), and the axes of the lifting cylinder (16) and the translation cylinder (15) are perpendicular.

5. The inner clamping ring transfer and pressing mechanism according to any one of claims 1 to 4, characterized in that: A support seat (18) is provided at the first stroke end point of the transfer assembly (17), which can abut against the small-diameter end of the transfer assembly (17) and is used to provide support for the transfer assembly (17) along the centerline direction.

6. The inner clamping ring transfer and pressing mechanism according to claim 1, characterized in that: The first press-fitting cylinder (19) and the second press-fitting cylinder (20) are relatively fixedly arranged via a second cylinder fixing seat (24); the ends of the first pressing head assembly (21) and the second pressing head assembly (22) are both provided with a guide shaft (23); and the guide shaft (23) is slidably mounted on the second cylinder fixing seat (24).

7. An inner clamping ring assembly device, characterized in that: It includes the inner clamping ring transfer and pressing mechanism described in any one of claims 1-6.

8. The inner collar assembly device according to claim 7, characterized in that: It also includes a feeding channel, a material sorting component vertically connected to the feeding channel, a push plate (7) capable of sliding through the feeding channel, and a feeding cylinder (4) for driving the push plate (7); The height of the feeding channel is 1-2 times the thickness of the inner clamping ring, and the thickness of the push plate (7) is not greater than the thickness of the inner clamping ring; The discharge port of the feeding channel coincides with the feed port of the transfer assembly (17) at the end point of the first stroke.

9. The inner collar assembly device according to claim 8, characterized in that: The material sorting component includes a storage shaft (9) perpendicular to the feeding channel, and the outer peripheral side wall of the storage shaft (9) is provided with a protrusion along the length direction for clamping the opening groove of the inner clamping ring. The gap between the bottom end of the storage shaft (9) and the bottom wall of the feeding channel is 1-2 times the thickness of the inner clamping ring, and the top end of the storage shaft (9) is slidably inserted into the gravity ring.

10. The inner collar assembly device according to claim 9, characterized in that: A first sensor (10) is fixedly provided on the outside of the storage shaft (9) via a first bracket (11) for detecting the number of the inner clamping rings remaining in the storage shaft (9).

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