A high-yield automated umbrella rib assembly machine tool

Abstract

This invention discloses a high-yield automated umbrella rib assembly machine tool, including a support ring and a drive structure for rotating the support ring. The support ring is welded to a worktable via a support rod. Adjacent worktables are welded together via connecting rings. A threaded post, threadedly connected to the support ring, is threaded through the support ring. A first connecting post is welded to the center of the bottom surface of the threaded post, and the first connecting post abuts against a second connecting post. A rivet is fitted onto the first connecting post. A first guide post is threaded through the support ring, and a feeding plate and a base plate are welded to both ends of the first guide post. A feeding cylinder, welded to the feeding plate, is threaded through the feeding plate and used to push the rivet to rivet the umbrella rib. This invention provides high precision throughout the riveting process, which is beneficial for product weight and yield.

Description

Technical Field

[0001] This invention relates to the field of modular machine tool technology, and more specifically, to an automated umbrella rib modular machine tool with a high yield rate. Background Technology

[0002] The ribs of an umbrella are composed of multiple parts, such as long ribs and short ribs. These ribs need to be assembled into a whole, so a combination machine tool is needed in the process of assembling the umbrella ribs.

[0003] As disclosed in the prior art (CN210523715U), a riveting mechanism for an umbrella rib riveting assembly machine can achieve efficient riveting operations by setting a rivet pressing part and a rivet bearing part. Furthermore, the rivet pressing part and the rivet bearing part are synchronously controlled by an upper reduction motor and a lower reduction motor, which can ensure that the upper guide rod and the lower guide rod always remain coaxially aligned, thereby ensuring the accuracy of rivet pressing.

[0004] Although the upper and lower guide rods can remain coaxial, during riveting operations, the upper guide rod needs to drive the rivet through the riveting hole on the umbrella rib and cooperate with the lower guide rod to complete the riveting operation. Therefore, during the riveting process, the upper and lower guide rods need to remain coaxial with the riveting hole on the umbrella rib, and the rivet also needs to remain coaxial with the upper guide rod when being fed.

[0005] To address this, existing technology (CN112108604A) discloses an automatic umbrella rib riveting device. This device involves placing umbrella rib segments into various positioning fixtures, which are then combined to interlock and mate the segments. Furthermore, the positioning fixtures can precisely align the riveting holes of all rib segments in a single operation, significantly reducing the time required for aligning the riveting holes and thus improving the riveting efficiency of the umbrella ribs.

[0006] The above method allows for the fixing of umbrella ribs using tooling, improving the precision of the riveting process, greatly reducing defective products, and improving product quality while also enhancing the accuracy of the riveting process.

[0007] When the rivets in the two existing technologies mentioned above are fed through a feeding track, and the feeding track has an arc-shaped path at one end, the rivets are prone to jamming when passing through the arc-shaped path, which makes it impossible for the rivets to be accurately inserted into the rivet holes of the umbrella ribs, which is not conducive to the riveting quality and yield of the umbrella ribs. Summary of the Invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0009] Therefore, the purpose of this invention is to provide an automated umbrella rib assembly machine tool with a high yield rate, including a support ring and a drive structure for driving the support ring to rotate. The support ring is welded to a worktable via a support rod, and adjacent worktables are fixed together by welding a connecting ring.

[0010] It also includes a processing table, on which a fixed frame is welded and connected. A first hydraulic cylinder and a second hydraulic cylinder are bolted to the top and bottom of the fixed frame, respectively. A lifting plate for pushing the positioning column is welded and connected to the piston end of the second hydraulic cylinder, and a top plate for pushing the bottom plate is welded and connected to the piston rod end of the second hydraulic cylinder.

[0011] A support ring has a threaded post threaded through it, and a first connecting post is welded to the center of the bottom surface of the threaded post. The first connecting post and the second connecting post are mated together, and a rivet is fitted on the first connecting post.

[0012] A support ring with a first guide post passing through it. A feeding plate and a base plate are welded to both ends of the first guide post, and a feeding cylinder is welded to the feeding plate. The feeding cylinder is used to push the rivet to rivet the umbrella rib.

[0013] The workbench has a slot for placing umbrella ribs, and the workbench wall at the bottom of the slot has a through hole for the second connecting post and the positioning post to pass through.

[0014] The bottom end of the positioning post protrudes to form a hemispherical flared protrusion, and the surface of the positioning post at the edge of the flared protrusion has a riveting step. The positioning post and the flared protrusion are provided with through holes and slots, and the top end of the second connecting post extends into the holes and slots and is elastically connected to the positioning post.

[0015] Furthermore, the drive structure includes a base, on which a fixed column is welded and connected, and a rotating column that is movably connected to its bearing is inserted into the fixed column. The rotating column is welded and connected to the inner circular wall of the support ring through a crossbar.

[0016] An electric motor is also fixed on the base, and the output shaft of the electric motor is welded to the bottom end of the rotating column.

[0017] The rotating column can be fixed to the base via a fixed column. The rotating column, through a crossbar, can then lift the support ring. When the motor is powered on, it drives the rotating column to rotate axially on the fixed column, thus causing the support ring to rotate synchronously via the crossbar.

[0018] Furthermore, a threaded rod is welded to the end of the first connecting post facing the second connecting post, and a threaded groove matching the threaded rod is opened on the end of the second connecting post facing the first connecting post. Through the threaded rod and the threaded groove, the second connecting post and the first connecting post are threadedly connected, which allows for disassembly and installation. When the first connecting post and the second connecting post are separated, rivets can be fitted onto the first connecting post to realize the material loading operation. At the same time, the first connecting post can be fixed to the support ring through the threaded post. When the second connecting post and the first connecting post are connected, the second connecting post can remain in a fixed state, thereby realizing the positioning and installation of the umbrella rib and the positioning riveting.

[0019] Furthermore, a guide rod is welded to the end of the second connecting post away from the threaded groove, and a retaining ring is fitted onto the top of the guide rod and welded to it.

[0020] The outer circular wall of the fixing ring fits into the inner wall of the slot. The positioning post can move along the axis of the guide rod through the fixing ring. The size design of the fixing ring and the slot ensures that the positioning post will not deviate during movement, thus ensuring the subsequent riveting quality of the positioning post. Furthermore, the positioning post and the second connecting post are detachable installation structures, meaning that the positioning post can be directly removed from the second connecting post. After the riveting operation is completed, the riveted umbrella rib can be removed from the placement slot by pulling out the positioning post.

[0021] Furthermore, the diameter of the feeding cylinder is the same as the inner diameter of the through hole, and two sets of symmetrically distributed sliding plates are welded to the inner wall of the top of the feeding cylinder, and the sliding plates are slidably connected to protrusions.

[0022] The protrusion has a trapezoidal structure, with its inclined surface facing the first guide post. The protrusion is welded to the inner wall of the feeding cylinder via a first spring.

[0023] The bottom surface of the protrusion forms a T-shaped slider, and the surface of the sliding plate has a groove that matches the slider. The slider and the groove allow the protrusion to move horizontally and linearly on the sliding plate. When the feeding cylinder moves vertically downward with the feeding plate, the inclined surface of the protrusion will contact the rivet head edge. Under the horizontal pressure of the rivet head edge, the protrusion will move horizontally on the sliding plate, and then the protrusion will pass through the rivet head edge after moving.

[0024] Furthermore, each group contains two protrusions, the distance between the two protrusions is less than the diameter of the rivet's head, and the inner diameter of the feeding cylinder is greater than the diameter of the rivet's head.

[0025] When the protrusion moves horizontally under the pressure of the rivet head, it compresses the first spring. After the protrusion passes over and separates from the rivet head, the first spring returns to its natural state, thus pushing the protrusion back to its original position. When the feeding cylinder moves vertically upwards with the feeding plate, the top surface of the protrusion on the feeding cylinder abuts against the rivet head. This allows the feeding cylinder to move synchronously with the rivet via the protrusion, enabling the rivet to move vertically upwards along the first connecting post.

[0026] Furthermore, a set of second guide columns is welded to the top of the lifting plate, and the second guide columns penetrate the top wall of the fixed frame;

[0027] A top rod runs through the lifting plate, and a hemispherical rubber block is glued to the bottom end of the top rod. A limit plate is welded to the top end of the top rod. A second spring is sleeved on the top rod between the limit plate and the lifting plate, and both ends of the second spring are welded to the limit plate and the lifting plate.

[0028] The second guide post allows the lifting plate to move smoothly downwards on the fixed frame under the push of the first hydraulic cylinder. The push rod moves synchronously with the lifting plate and inserts into the placement slot. The bottom end of the push rod contacts the umbrella ribs in the placement slot through a rubber block, thereby pressing the umbrella ribs tightly. This prevents the umbrella ribs from shifting when the rivets move upwards and are inserted into the riveting holes inside the umbrella ribs, which is beneficial to the subsequent riveting quality. As the lifting plate continues to descend, the push rod can no longer move. The push rod will move along the lifting plate and stretch the second spring through the limit plate. Under the reaction force of the second spring, the push rod can be forced to firmly press the umbrella ribs.

[0029] Furthermore, the diameter of the top rod is smaller than the width of the placement groove, the distribution path of the top rod is consistent with the shape of the placement groove, and multiple top rods are provided. The diameter and distribution design of the top rods allow them to be inserted into the placement groove and contact the umbrella ribs, and to press multiple sections of the umbrella ribs together, which is beneficial to the subsequent riveting accuracy and quality.

[0030] Furthermore, the first connecting post, the second connecting post, and the guide rod are coaxial, and the diameters of the first and second connecting posts are the same. The diameter of the guide rod is smaller than the inner diameter of the slot. The diameters of the first and second connecting posts are designed such that when the first and second connecting posts are joined together, the rivet can slide from the first connecting post onto the second connecting post. At this time, driven by the feeding cylinder, the rivet can push the positioning post out of the riveting hole on the umbrella rib, so that the rivet can be inserted into the riveting hole on the umbrella rib.

[0031] Furthermore, a limiting sleeve is fitted at the bottom end of the first connecting column, and the bottom end of the limiting sleeve is welded to the threaded column. The diameter of the limiting sleeve is smaller than the diameter of the rivet's cap, and the height of the limiting sleeve is greater than the height of the feeding cylinder.

[0032] When multiple rivets are fitted onto the first connecting post, the bottommost rivet will contact the limiting cylinder. The limiting cylinder will create a gap between the bottommost rivet and the surface of the support ring. When the feeding cylinder descends to fit against the surface of the support ring, the feeding cylinder is now located below the bottommost rivet. When the feeding cylinder rises again, it will drive all the rivets upwards along the first connecting post, thus realizing the rivet feeding operation.

[0033] The advantages of the automated umbrella rib assembly machine tool with high yield rate of the present invention are as follows:

[0034] The present invention is equipped with a workbench, through which the umbrella ribs can be assembled first through the placement slot, which not only improves work efficiency, but also benefits the subsequent riveting quality.

[0035] The placement groove has multiple through holes, which are aligned with the riveting holes of the umbrella ribs. A positioning pin is inserted into the through hole, which can also pass through the riveting holes of the umbrella ribs. The positioning pin can be used to position the umbrella ribs and ensure the subsequent riveting accuracy.

[0036] A first connecting post is provided, and multiple rivets are fitted on the first connecting post. The rivets can move along the axial direction of the first connecting post to feed materials. Straight feeding not only feeds materials quickly but also avoids material jamming.

[0037] Equipped with a feeding plate, the feeding plate drives the feeding cylinder to move up and down, which in turn moves the rivet upwards and inserts it into the riveting hole of the umbrella rib. Since the position of the rivet hole of the umbrella rib is the position of the positioning post, the movement direction of the rivet is consistent with the position of the positioning post. This ensures that the rivet can be accurately inserted into the rivet hole of the umbrella rib. With the flared protrusion and riveting step on the positioning post, the rivet is riveted, thus realizing the riveting operation of the umbrella rib. The entire riveting operation process is highly precise, which is beneficial to the weight of the product and the yield rate. Attached Figure Description

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein

[0039] Figure 1 This is a top view of the structure of the present invention;

[0040] Figure 2 This is a schematic cross-sectional view of the fixed column and rotating column of the present invention;

[0041] Figure 3 This is a top view schematic diagram of the support ring and feeding plate of the present invention;

[0042] Figure 4 This is a three-dimensional structural diagram of the threaded column and the first connecting column of the present invention;

[0043] Figure 5 This is a top view of the worktable structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning column of the present invention;

[0045] Figure 7 This is a schematic diagram of the feeding cylinder structure before it moves according to the present invention;

[0046] Figure 8 For the present invention Figure 7 Enlarged structural diagram of point A in the middle;

[0047] Figure 9 For the present invention Figure 7 Enlarged structural diagram of point B;

[0048] Figure 10 This is a schematic diagram of the structure of the feeding cylinder after it has been moved according to the present invention;

[0049] Figure 11 For the present invention Figure 10 Enlarged structural diagram of point C;

[0050] Figure 12 This is a side view of the fixing frame structure of the present invention.

[0051] In the diagram: 1. Base; 2. Fixed column; 3. Rotating column; 4. Crossbar; 5. Support ring; 51. Threaded column; 52. First connecting column; 521. Limiting cylinder; 53. Threaded rod; 54. Rivet; 55. Feeding plate; 56. Feeding cylinder; 561. Sliding plate; 562. Protrusion; 563. First spring; 57. Base plate; 58. First guide column; 6. Support rod; 7. Worktable; 71. Placement slot; 72. Through hole; 73. Positioning post; 731. Flared protrusion; 732. Riveting step; 733. Hole groove; 74. Second connecting post; 75. Guide rod; 76. Fixing ring; 8. Connecting ring; 9. Machining table; 91. Fixing frame; 92. First hydraulic cylinder; 93. Lifting plate; 94. Second guide post; 95. Top rod; 96. Limiting plate; 97. Second spring; 98. Second hydraulic cylinder; 99. Top plate. Detailed Implementation

[0052] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0054] Please see Figures 1-12 This invention provides a technical solution: a high-yield automated umbrella rib assembly machine tool, including a support ring 5 and a drive structure for driving the support ring 5 to rotate. The support ring 5 is welded to a worktable 7 via a support rod 6, and adjacent worktables 7 are welded and fixed together via connecting rings 8.

[0055] It also includes a processing table 9, on which a fixed frame 91 is welded and connected. A first hydraulic cylinder 92 and a second hydraulic cylinder 98 are bolted to the top and bottom of the fixed frame 91, respectively. A lifting plate 93 for pushing the positioning column 73 is welded and connected to the piston end of the second hydraulic cylinder 98, and a top plate 99 for pushing the bottom plate 57 is welded and connected to the piston rod end of the second hydraulic cylinder 98.

[0056] A support ring 5 has a threaded post 51 threaded through it. A first connecting post 52 is welded to the center of the bottom surface of the threaded post 51. The first connecting post 52 is connected to the second connecting post 74. A rivet 54 is fitted on the first connecting post 52.

[0057] A support ring 5 has a first guide post 58 passing through it. The first guide post 58 has a feeding plate 55 and a base plate 57 welded to its two ends respectively. A feeding cylinder 56 is welded to the feeding plate 55 and is used to push the rivet 54 to rivet the umbrella rib.

[0058] The workbench 7 has a placement slot 71 for placing umbrella ribs, and the workbench 7 wall at the bottom of the placement slot 71 has a through hole 72 for the second connecting post 74 and the positioning post 73 to pass through.

[0059] The bottom end of the positioning post 73 protrudes to form a hemispherical flared protrusion 731. A riveting step 732 is formed on the surface of the positioning post 73 at the edge of the flared protrusion 731. A through hole 733 is opened on the positioning post 73 and the flared protrusion 731. The top end of the second connecting post 74 extends into the hole 733 and is elastically connected to the positioning post 73.

[0060] The drive structure includes a base 1, a fixed column 2 welded to the base 1, a rotating column 3 movably connected to its bearing inserted into the fixed column 2, and the rotating column 3 welded to the inner wall of the support ring 5 via a crossbar 4.

[0061] An electric motor is also fixed on the base 1, and the output shaft of the electric motor is welded to the bottom end of the rotating column 3.

[0062] A threaded rod 53 is welded to the end of the first connecting post 52 facing the second connecting post 74, and a threaded groove matching the threaded rod 53 is opened on the end of the second connecting post 74 facing the first connecting post 52.

[0063] The second connecting post 74 has a guide rod 75 welded to the end away from the threaded groove, and a retaining ring 76 welded to the top of the guide rod 75.

[0064] The diameter of the feeding cylinder 56 is the same as the inner diameter of the through hole 72. Two sets of symmetrically distributed sliding plates 561 are welded to the inner wall of the top of the feeding cylinder 56. The sliding plates 561 are slidably connected to the protrusions 562. The protrusions 562 have a trapezoidal structure. The inclined surface of the protrusions 562 faces the first guide post 58. The protrusions 562 are welded to the inner wall of the feeding cylinder 56 through the first spring 563.

[0065] Each group of protrusions 562 consists of two protrusions, the distance between the two protrusions 562 is less than the diameter of the rivet 54 cap, and the inner diameter of the feed cylinder 56 is greater than the diameter of the rivet 54 cap.

[0066] A set of second guide columns 94 are welded to the top of the lifting plate 93, and the second guide columns 94 penetrate the top wall of the fixed frame 91.

[0067] A top rod 95 runs through the lifting plate 93. A hemispherical rubber block is glued to the bottom of the top rod 95. A limit plate 96 is welded to the top of the top rod 95. A second spring 97 is sleeved on the top rod 95 between the limit plate 96 and the lifting plate 93. Both ends of the second spring 97 are welded to the limit plate 96 and the lifting plate 93.

[0068] The diameter of the push rod 95 is smaller than the width of the placement groove 71, and the distribution path of the push rod 95 is consistent with the shape of the placement groove 71.

[0069] The first connecting post 52, the second connecting post 74, and the guide rod 75 are coaxial, and the diameters of the first connecting post 52 and the second connecting post 74 are the same, while the diameter of the guide rod 75 is smaller than the inner diameter of the slot 733.

[0070] The bottom end of the first connecting post 52 is fitted with a limiting sleeve 521. The bottom end of the limiting sleeve 521 is welded to the threaded post 51. The diameter of the limiting sleeve 521 is smaller than the diameter of the cap of the rivet 54, and the height of the limiting sleeve 521 is greater than the height of the feeding cylinder 56.

[0071] Working principle: Specifically, during operation, such as... Figure 5 As shown, the umbrella ribs can be assembled and placed into the placement slot 71, and the positioning pin 73 can be passed through the riveting hole on the umbrella rib. The positioning pin 73 is used to position and install the umbrella rib, which prevents the umbrella rib from becoming loose during movement and helps to improve the subsequent riveting quality and yield.

[0072] like Figure 1and Figure 12 As shown, at this time, the rotating column 3 drives the worktable 7 to move through the support rod 6. When the worktable 7 rotates into the fixed frame 91, the second hydraulic cylinder 98 is energized and operates, pushing the top plate 99 upward. At the same time, the first hydraulic cylinder 92 pushes the lifting plate 93 downward. The lifting plate 93 presses and fixes the umbrella ribs through the top rod 95.

[0073] like Figures 7-9 As shown, at this time, the feeding cylinder 56 is located on the support ring 5 and below the bottommost rivet 54, and the positioning pin 73 passes through the rivet hole in the umbrella rib.

[0074] like Figure 10 and Figure 11 As shown, after the top plate 99 moves upward, it contacts the bottom plate 57. Under the push of the top plate 99, the bottom plate 57 pushes the feeding plate 55 upward through the first guide post 58. The feeding plate 55 drives the feeding cylinder 56 to move synchronously. When the feeding cylinder 56 moves upward, it drives the rivet 54 to move upward along the first connecting post 52 through the protrusion 562. When the feeding cylinder 56 is inserted into the through hole 72, the rivet 54 moves to the second connecting post 74 and contacts the positioning post 73, thus moving the positioning post 73 from the umbrella rib. The rivet 54 is pushed out of the rivet hole on the umbrella rib and can be inserted into the rivet hole on the umbrella rib. At this time, the top of the rivet 54 contacts the flared protrusion 731 at the bottom of the positioning post 73. When the lifting plate 93 continues to descend, it can press the positioning post 73. The positioning post 73 can enlarge the top of the rivet 54 through the flared protrusion 731. Then, the positioning post 73 can flatten the flared part through the riveting step 732, so that the top of the rivet 54 is also cap-shaped, thereby completing the riveting operation.

[0075] like Figure 1 and Figure 3 As shown, multiple worktables 7 and feeding plates 55 are provided. The worktables 7 are rotated via the support rings 5, enabling continuous riveting operations and improving work efficiency. Furthermore, the design of multiple worktables 7 allows for simultaneous loading and unloading of the riveted umbrella ribs.

[0076] Multiple counterweights are bolted to the top surface of the feeding plate 55. The counterweights are made of metal, such as iron or steel, which can increase the overall weight of the feeding plate 55. When the feeding plate 55 is separated from the top plate 99, the feeding plate 55 will automatically descend and reset. The feeding plate 55 can drive the feeding cylinder 56 to descend and reset. During the descent, the feeding cylinder 56 will support the rivet 54 at the bottom. Then, when the feeding cylinder 56 rises again, it can drive the rivet 54 to rise, thus realizing continuous riveting operation.

[0077] The rivet 54 is hollow, and its inner diameter is the same as that of the first connecting post 52 and the second connecting post 74. This ensures that the rivet 54 will not wobble when it moves on the first connecting post 52 and the second connecting post 74, thereby ensuring the overall riveting accuracy.

[0078] In the description of this specification, terms such as "connection," "installation," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms within this invention based on the specific circumstances.

[0079] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-good-product-ratio automatic umbrella rib assembling machine tool, comprising a support ring (5) and a driving structure for driving the support ring (5) to rotate, the support ring (5) is welded with a workbench (7) through a support rod (6), and adjacent two workbenches (7) are welded and fixed through a connecting ring (8), characterized in that: The support ring (5) is penetrated by a threaded column (51) screwed with the support ring (5), the bottom center of the threaded column (51) is welded with a first connecting column (52), the first connecting column (52) is connected with a second connecting column (74), and the first connecting column (52) is sleeved with a rivet (54). The support ring (5) is penetrated by a first guide column (58), the two ends of the first guide column (58) are welded with a feeding plate (55) and a bottom plate (57) respectively, the feeding plate (55) is penetrated by a feeding cylinder (56) welded with the feeding plate (55), and the feeding cylinder (56) is used for riveting the rivet (54) with the umbrella rib. The workbench (7) is provided with a placing groove (71) for placing the umbrella rib, and the wall of the workbench (7) at the bottom of the placing groove (71) is provided with a through hole (72) for the second connecting column (74) and the positioning column (73) to penetrate. The bottom end of the positioning column (73) is protruded to form a hemispherical flared protrusion (731), the surface of the positioning column (73) at the edge of the flared protrusion (731) is formed with a riveting step (732), and the positioning column (73) and the flared protrusion (731) are provided with a through hole (733). The diameter of the feeding cylinder (56) is consistent with the inner diameter of the through hole (72), the top inner wall of the feeding cylinder (56) is welded with two groups of symmetrically distributed sliding plates (561), and the sliding plates (561) are slidingly connected with protrusions (562). The protrusions (562) are in trapezoidal structure, the inclined surface of the protrusions (562) faces the first guide column (58), and the protrusions (562) are welded with the inner wall of the feeding cylinder (56) through the first spring (563). The number of the protrusions (562) in each group is two, the distance between the two protrusions (562) is less than the diameter of the hat brim of the rivet (54), and the inner diameter of the feeding cylinder (56) is greater than the diameter of the hat brim of the rivet (54).

2. The high yield automatic umbrella rib assembling machine according to claim 1, characterized in that: The driving structure comprises a base (1), the base (1) is welded with a fixed column (2), the fixed column (2) is penetrated by a rotating column (3) bearingly connected with the fixed column (2), and the rotating column (3) is welded with the inner circular wall of the support ring (5) through a cross rod (4). The base (1) is also fixed with a motor, and the output shaft of the motor is welded with the bottom end of the rotating column (3).

3. The high yield automatic umbrella rib assembling machine of claim 1, wherein: The end of the first connecting column (52) facing the second connecting column (74) is welded with a threaded rod (53), and the end of the second connecting column (74) facing the first connecting column (52) is provided with a threaded groove matched with the threaded rod (53).

4. The high yield automatic umbrella rib assembling machine of claim 1, wherein: The end of the second connecting column (74) away from the threaded groove is welded with a guide rod (75), and the top end of the guide rod (75) is sleeved with a fixed ring (76) welded with the guide rod (75).

5. The high yield automatic umbrella rib assembling machine as claimed in claim 1, wherein: Also include processing platform (9), the processing platform (9) is welded with a fixed frame (91), the fixed frame (91) top and bottom end are bolted with first hydraulic cylinder (92) and second hydraulic cylinder (98) respectively, the piston end of second hydraulic cylinder (98) is welded with a lifting plate (93) for pushing positioning column (73), the piston rod end of second hydraulic cylinder (98) is welded with a top plate (99) for pushing bottom plate (57), the lifting plate (93) top is welded with a group of second guide column (94), the second guide column (94) penetrates through the top wall of fixed frame (91).

6. A high yield automatic umbrella rib assembling machine as claimed in claim 5 wherein: The lifting plate (93) is penetrated through with a top rod (95), the bottom end of top rod (95) is bonded with a hemispherical rubber block, the top end of top rod (95) is welded with a limit plate (96), the second spring (97) is sleeved on the top rod (95) between limit plate (96) and lifting plate (93), the both ends of second spring (97) are welded with limit plate (96) and lifting plate (93), the diameter of top rod (95) is less than the slot width of placing groove (71), the distribution path of top rod (95) is consistent with the shape of placing groove (71).

7. The high yield automatic umbrella rib assembling machine as claimed in claim 3, wherein: The first connecting column (52), the second connecting column (74) and the guide rod (75) are coaxial, and the diameters of the first connecting column (52) and the second connecting column (74) are consistent, the diameter of the guide rod (75) is less than the inner diameter of the hole groove (733).

8. The high yield automatic umbrella rib assembling machine of claim 1, wherein: The bottom end of the first connecting column (52) is sleeved with a limit cylinder (521), the bottom end of the limit cylinder (521) is welded with the threaded column (51), the diameter of the limit cylinder (521) is less than the diameter of the cap edge of the rivet (54), and the height of the limit cylinder (521) is greater than the height of the feeding cylinder (56).

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