An automatic assembly machine and assembly method for U-shaped attachment chains

Abstract

The present invention relates to the field of chain processing, and specifically discloses an automatic assembly machine and an assembly method for a U-shaped attachment chain. The automatic assembly machine includes a frame, an inner link feeding module, a connecting attachment feeding module, and a pressing module. An assembly channel is provided on the workbench, and an inner link feeding station and a pressing station are provided on the assembly channel. The inner link sorting assembly includes an inner link feeding unit, a first pushing member, and a first driving unit, and the first driving unit is used to drive the first pushing member to move between the inner link feeding unit and the inner link feeding station; the inner link transfer assembly includes a second pushing member and a second driving unit, and the second driving unit is used to drive the second pushing member to move along the assembly channel between the inner link feeding station and the pressing station. The above-mentioned automatic assembly machine can automatically complete the feeding and assembly operations of each component in the U-shaped attachment chain, with high automation and assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the field of chain processing, and particularly to an automatic assembly machine and an assembly method for a U-shaped accessory chain. Background Art

[0002] Chains are commonly used components in the mechanical field, often used for conveying and transmission. The U-shaped accessory chain is a special form of chain, and its main feature is that it can connect double-row chains or even multi-row chains with U-shaped accessories and be used as a whole. The U-shaped accessories can play a role in wrapping and protecting the chain.

[0003] As Figure 1 shown, the U-shaped accessory chain usually includes U-shaped accessories 01 and at least two rows of inner chains. The inner chains are composed of inner chain links 03 arranged in sequence. An intermediate chain plate 04 is provided between adjacent two inner chain links 03 and is connected by a pin shaft 02. The intermediate chain plate 04 plays a connecting role between adjacent two inner chain links 03 and also connects two rows of inner chains in parallel, while the U-shaped accessories 01 cover two rows of inner chains.

[0004] The structure of the U-shaped accessory chain is complex. During the assembly process, it is necessary to arrange multiple rows of inner chain links in an orderly manner and insert them into the U-shaped accessories. It is also necessary to install intermediate chain plates and pin shafts to complete the connection. The installation steps of the U-shaped accessory chain are cumbersome, and it is difficult for existing chain assembly machines to achieve the automatic assembly of U-shaped accessory chains. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic assembly machine and an assembly method for a U-shaped accessory chain, which can automatically complete the feeding and assembly operations of each component in the U-shaped accessory chain, with high automation and assembly efficiency.

[0006] To solve the above technical problem, the technical solution provided by the present invention is as follows: An automatic assembly machine for a U-shaped accessory chain, comprising:

[0007] A frame, on which a workbench is provided. An assembly channel is provided on the workbench, and an inner chain link feeding station and a pressing station are provided on the assembly channel; the assembly channel includes an inner chain link transfer section and a pressing section. The inner chain link feeding station is located in the inner chain link transfer section, and the pressing station is located in the connection area between the pressing section and the inner chain link conveying section;

[0008] The inner chain link transfer section includes two guiding blocks arranged in parallel, and an inner chain link transfer interval is formed between the two guiding blocks; a profiling unit is provided on the side of the guiding block facing the inner chain link transfer interval, and the profiling unit extends along the length direction of the inner chain link conveying section; a chain feeding drive unit for driving the chain to move unidirectionally along the assembly channel is further provided on the frame;

[0009] Inner link feeding module, the inner link feeding module includes an inner link sorting component and an inner link transfer component; the inner link sorting component is located on one side of the inner link feeding station, and the inner link sorting component includes an inner link feeding unit, a first pusher and a first driving unit, and the first driving unit is used to drive the first pusher to move between the inner link feeding unit and the inner link feeding station; the inner link transfer component includes a second pusher and a second driving unit, and the second driving unit is used to drive the second pusher to move along the assembly channel between the inner link feeding station and the pressing station;

[0010] Connecting accessory feeding module, the connecting accessory feeding module includes an intermediate link plate feeding component, a pin feeding component and a U-shaped accessory feeding component, and the intermediate link plate feeding component and the U-shaped accessory feeding component are arranged opposite to each other left and right with respect to the pressing station; the intermediate link plate feeding component is used to feed the intermediate link plate into the pressing station, the pin feeding component is used to feed the pin into the pressing station, and the U-shaped accessory feeding component is used to feed the U-shaped accessory into the pressing station;

[0011] Pressing module, the pressing module is used to press the pin into the U-shaped accessory, inner link and intermediate link plate.

[0012] The profiling unit can limit the inner link, and the height position of the inner link will not change during the segmented movement along the inner link transfer until it enters the pressing station, and the relative positions of multiple inner links remain stable, leaving enough space for the feeding of the intermediate link plate. After the intermediate link plate and the pin are assembled, the profiling unit is not required for auxiliary limiting.

[0013] When assembling the U-shaped accessory chain, first, the inner link sorting component feeds the corresponding number of inner links into the inner link feeding station, and the inner link indexing unit synchronously pushes multiple inner links to the pressing station. During the transfer process, due to the limiting effect of the profiling unit, the relative positions of the inner links remain unchanged. After entering the pressing station, the intermediate link plate feeding component feeds the intermediate link plate between every two upper and lower inner links, the U-shaped accessory feeding component feeds the U-shaped accessory into the pressing station, the pin feeding component feeds the pin into the pressing station, and finally the pressing module works to press the pin into the pin hole to complete the assembly of a single link. After each link is assembled, the feeding drive unit works to drive the chain to move, leaving space for the assembly of the next link.

[0014] Preferably, the profiling unit includes chutes matching the inner link plates in the inner link. The chutes on the two guiding blocks correspond one by one and are arranged opposite to each other left and right.

[0015] After the inner link enters the inner link transfer and picks up the part, the upper and lower inner link plates are respectively inserted into the chutes of the guiding blocks on both sides to keep the inner link stable in the height direction.

[0016] Preferably, the number of profiling units is at least two groups and they are distributed in sequence in the height direction; a plurality of backing plates are also provided at the inner link feeding station, and one backing plate is correspondingly provided below each profiling unit.

[0017] The backing plates play a role in supporting and guiding the inner links, preventing the inner links from falling during the process of entering the inner link feeding station, and ensuring that the inner link plates on the inner links smoothly enter the chute.

[0018] Preferably, the chain feeding drive unit includes an insertion plate, a mounting slider, a lateral drive member, and a longitudinal drive member. The insertion plate is located on one side of the assembly channel and is slidably connected to the mounting slider; the lateral drive unit is arranged on the mounting slider and is used to drive the insertion plate to reciprocate perpendicular to the assembly channel; the longitudinal drive unit is used to drive the mounting slider to reciprocate along the extension direction of the assembly channel.

[0019] Preferably, the inner link feeding unit includes a first vibrating disk and a first guiding cylinder. The inlet end of the first guiding cylinder is communicated with the outlet of the first vibrating disk, and the outlet end of the first guiding cylinder corresponds to the first pushing member.

[0020] Preferably, the press-fitting module is located above the press-fitting station. The press-fitting module includes a press-fitting head and a press-fitting power unit. The press-fitting power unit is used to drive the press-fitting head to move up and down; two parallel ejector pins are provided on the press-fitting head.

[0021] Preferably, the intermediate link plate feeding assembly includes an intermediate link plate feeding unit, a third pushing member, and a third drive unit. The third drive unit is used to drive the third pushing member to move between the intermediate link plate feeding unit and the press-fitting station.

[0022] Preferably, the pin feeding assembly includes a pin feeding unit, a fourth pushing member, and a fourth drive unit. The fourth drive unit is used to drive the fourth pushing member to move between the pin feeding unit and the press-fitting station.

[0023] Preferably, the U-shaped attachment feeding assembly includes a U-shaped attachment feeding unit, a fifth pushing member, and a fifth drive unit. The fifth drive unit is used to drive the fifth pushing member to move between the U-shaped attachment feeding unit and the press-fitting station.

[0024] An assembly method for a U-shaped attachment chain, using the automatic assembly machine as described above;

[0025] At least includes the following steps:

[0026] S1. Inner link sorting: The inner link sorting assembly works, pushing the inner links to the inner link feeding station, and the inner links are matched with the profiling units;

[0027] S2. Inner link transfer: The inner link transfer component operates to push the inner links to the press-fitting station along the segmented inner link conveyor; restricted by the profiling unit, the inner links remain stationary in the height direction during the transfer process.

[0028] S3. Connecting accessory feeding: The intermediate link feeding component pushes the intermediate links into the press-fitting station, the pin feeding component pushes the pins into the press-fitting station, and the U-shaped accessory feeding component pushes the U-shaped accessories into the press-fitting station.

[0029] S4. Press-fitting: The press-fitting module operates to press the pins into the U-shaped accessories, inner links, and intermediate links to complete the assembly of a single section. Description of the drawings

[0030] Figure 1 It is a schematic structural diagram of a U-shaped accessory chain.

[0031] Figure 2 It is a schematic structural diagram of the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0032] Figure 3 It is a top view of the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0033] Figure 4 It is a side view of the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0034] Figure 5 It is a schematic structural diagram of the automatic assembly machine for the U-shaped accessory chain in this embodiment in the state without the press-fitting module.

[0035] Figure 6 It is a top view of the automatic assembly machine for the U-shaped accessory chain in this embodiment in the state without the press-fitting module.

[0036] Figure 7 It is a schematic structural diagram of the assembly channel in the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0037] Figure 8 It is a cross-sectional view of the segmented inner link transfer in the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0038] Figure 9 It is a schematic structural diagram of the cooperation between the inner link feeding module and the assembly channel in the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0039] Figure 10 It is a cross-sectional view of the cooperation between the inner link feeding module and the assembly channel in the automatic assembly machine for the U-shaped accessory chain in this embodiment.

[0040] Figure 11This is a schematic structural diagram of the cooperation between the chain feeding drive unit and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment;

[0041] Figure 12 This is a schematic structural diagram of the cooperation between the connecting accessory feeding module and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment;

[0042] Figure 13 This is a schematic structural diagram of the cooperation between the middle link plate feeding assembly and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment;

[0043] Figure 14 This is a cross-sectional view of the cooperation between the middle link plate feeding assembly and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment;

[0044] Figure 15 This is a schematic structural diagram of the cooperation between the pin shaft feeding assembly and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment;

[0045] Figure 16 This is a schematic structural diagram of the cooperation between the U-shaped accessory feeding assembly and the assembly channel in the automatic assembly machine for U-shaped accessory chains in this embodiment. Detailed implementation mode

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment

[0047] As Figures 2 - 6 shown, an automatic assembly machine for U-shaped accessory chains includes a frame 1, an inner link feeding module 5, a connecting accessory feeding module and a pressing module 2.

[0048] Among them, as Figures 2 - 6 shown, a workbench is provided on the frame 1, an assembly channel 11 is provided on the workbench, and an inner link feeding station 12 and a pressing station 13 are provided on the assembly channel 11. As Figure 7 and Figure 8 shown, the assembly channel 11 includes an inner link transfer section 111 and a pressing section 112. The inner link feeding station 12 is located in the inner link transfer section 111, and the pressing station 13 is located in the connection area between the pressing section 112 and the inner link conveying section.

[0049] As Figure 7 and Figure 8As shown, the inner link transfer section 111 includes two guiding blocks 1111 arranged in parallel, and an inner link transfer interval 1114 is formed between the two guiding blocks 1111. A profiling unit is provided on the side of the guiding block 1111 facing the inner link transfer interval 1114, and the profiling unit extends along the length direction of the inner link conveying section.

[0050] Specifically, as Figure 7 and Figure 8 shown, the profiling unit includes a chute 1112 that matches the inner link plate in the inner link. The chutes 1112 on the two guiding blocks 1111 correspond to each other one by one and are arranged opposite to each other left and right. Specifically, in this application, two sets of profiling grooves are taken as an example for specific illustration. Correspondingly, the number of inner links is also two, and the number of inner links transferred simultaneously at one time is also two.

[0051] The profiling unit can limit the position of the inner link. During the movement of the inner link along the inner link transfer section 111, the height position of the inner link will not change until it enters the press-fitting station 13. The relative position between the two inner links remains stable, leaving enough space for the feeding of the intermediate link plate. After the intermediate link plate and the pin shaft are assembled, the profiling unit is no longer required for auxiliary position limitation. After the inner link enters the inner link transfer and picking station, the upper and lower inner link plates are respectively inserted into the chutes 1112 of the guiding blocks 1111 on both sides to keep the inner link stable in the height direction.

[0052] Furthermore, as Figure 8 shown, a plurality of backing plates 1113 are also provided at the inner link feeding station 12, and one backing plate 1113 is correspondingly provided below each profiling unit. The backing plates 1113 play a role in supporting and guiding the inner link, preventing the inner link from falling during the process of entering the inner link feeding station 12, and ensuring that the inner link plates on the inner link smoothly enter the chutes 1112.

[0053] As Figure 5 、 Figure 6 and Figure 11 shown, a chain feeding drive unit 7 for driving the chain to move unidirectionally along the assembly channel 11 is further provided on the frame 1. The chain feeding drive unit 7 includes an insertion plate 71, a mounting slider 72, a lateral drive member, and a longitudinal drive member. The insertion plate 71 is located on one side of the assembly channel 11 and is slidably connected to the mounting slider 72. The lateral drive unit 74 is provided on the mounting slider 72 and is used to drive the insertion plate 71 to reciprocate perpendicular to the assembly channel 11. The longitudinal drive unit 73 is used to drive the mounting slider 72 to reciprocate along the extension direction of the assembly channel 11.

[0054] Specifically, as Figure 5 、 Figure 6 、 Figure 9 and Figure 10As shown, the inner chain link feeding module 5 includes an inner chain link sorting component 52 and an inner chain link transfer component 53. The inner chain link sorting component 52 is located at one side of the inner chain link feeding station 12, and the inner chain link sorting component 52 includes an inner chain link feeding unit, a first pushing member 522 and a first driving unit 521, and the first driving unit 521 is used to drive the first pushing member 522 to move between the inner chain link feeding unit and the inner chain link feeding station 12. The inner chain link transfer component 53 includes a second pushing member 532 and a second driving unit 531, and the second driving unit 531 is used to drive the second pushing member 532 to move between the inner chain link feeding station 12 and the press-fitting station 13 along the assembly channel 11.

[0055] like Figure 1 , Figure 2 and Figure 9 As shown, the inner chain link feeding unit includes a first vibration plate 51 and a first guide cylinder 54. The inlet end of the first guide cylinder 54 is connected to the outlet of the first vibration plate 51, and the outlet end of the first guide cylinder 54 corresponds to the first pusher 522. Since there are two inner chains, two inner chain links need to be pushed in at a time, and the corresponding number of inner chain link sorting assemblies 52 is also two, and they are opposite to each other relative to the assembly channel 11. At the same time, because there is a height difference between the two inner chain links after being sent into the assembly channel 11, the first pushers 522 in the two inner chain link sorting assemblies 52 are also staggered in the height direction.

[0056] Among them, Figure 5 , Figure 6 and Figure 12 As shown, the connecting accessory feeding module includes an intermediate chain plate feeding assembly 4, a pin shaft feeding assembly 6 and a U-shaped accessory feeding assembly 3, and the intermediate chain plate feeding assembly 4 and the U-shaped accessory feeding assembly 3 are opposite to each other relative to the press-fitting station 13. The intermediate chain plate feeding assembly 4 is used to feed the intermediate chain plate into the press-fitting station 13. The pin shaft feeding assembly 6 is used to feed the pin shaft into the press-fitting station 13. The U-shaped accessory feeding assembly 3 is used to feed the U-shaped accessory into the press-fitting station 13.

[0057] Specifically, Figure 13 and Figure 14 As shown, the intermediate chain plate feeding assembly 4 includes an intermediate chain plate feeding unit, a third pushing member 47 and a third driving unit 45 , and the third driving unit 45 is used to drive the third pushing member 47 to move between the intermediate chain plate feeding unit and the press-fitting station 13 .

[0058] Since two inner chains are usually connected by double-row intermediate chain plates, the number of intermediate chain plates needs to be controlled. Figure 13 and Figure 14As shown, the intermediate link feeding unit includes a second vibrating bowl 41, a second feeding tube, and a link presetting mechanism. The link presetting mechanism includes a presetting station 46, a material distributing push plate 44, a material distributing driving member 43, a feeding push plate 42, and a feeding driving member 48. The inlet end of the second feeding tube corresponds to the second vibrating bowl 41, and the outlet end of the second feeding tube corresponds to the material distributing push plate 44. The material distributing driving member 43 is used to drive the material distributing push plate 44 to sequentially push the intermediate links to the presetting station 46, and the feeding driving member 48 is used to drive the feeding push plate 42 to push the intermediate links from the presetting station 46 to the front end of the third pushing member 47. Finally, the third pushing member 47 pushes the links to the pressing station 13. Specifically, the presetting station 46 is provided with a presetting trough. The material distributing push plate 44 sequentially feeds the intermediate links into the presetting trough. After the intermediate links are stacked in the presetting trough to a preset quantity in sequence, they are pushed by the feeding push plate 42 to the front end of the third pushing member 47.

[0059] Specifically, as Figure 15 shown, the pin feeding assembly 6 includes a pin feeding unit, a fourth pushing member 62, and a fourth driving unit 63. The fourth driving unit 63 is used to drive the fourth pushing member 62 to move between the pin feeding unit and the pressing station 13.

[0060] The pin feeding unit includes a third vibrating bowl 61 and a third feeding tube. The inlet end of the third feeding tube corresponds to the outlet of the third vibrating bowl 61, and the outlet end of the third feeding tube corresponds to the fourth pushing member 62.

[0061] Specifically, as Figure 16 shown, the U-shaped accessory feeding assembly 3 includes a U-shaped accessory feeding unit, a fifth pushing member 33, and a fifth driving unit 36. The fifth driving unit 36 is used to drive the fifth pushing member 33 to move between the U-shaped accessory feeding unit and the pressing station 13.

[0062] The pin feeding assembly 6 and the U-shaped accessory feeding assembly 3 are located on the same side of the assembly channel 11, and the fourth pushing member 62 is arranged above the fifth pushing member 33. Therefore, the U-shaped accessories cannot directly fall onto the front end of the fifth pushing member 33 by gravity. The U-shaped accessory feeding unit includes a fourth vibrating bowl 31, a fourth feeding tube 32, and a lateral pushing mechanism. The lateral pushing mechanism includes a lateral push plate 34 and a lateral driving member 35. The inlet end of the fourth feeding tube 32 corresponds to the outlet of the fourth vibrating bowl 31, and the outlet end of the fourth feeding tube 32 corresponds to the lateral push plate 34. The lateral driving member 35 is used to drive the lateral push plate 34 to push the U-shaped accessories to the front end of the fourth pushing member 62.

[0063] Among them, as Figures 1 - 3As shown, the press-fitting module 2 is used to press-fit the pin shafts into the U-shaped attachments, inner link plates, and intermediate link plates. The press-fitting module 2 is located above the press-fitting station 13. The press-fitting module 2 includes a press-fitting head and a press-fitting power unit, and the press-fitting power unit is used to drive the press-fitting head to move up and down. Two parallel ejector pins are provided on the press-fitting head.

[0064] When assembling the U-shaped attachment chain, first, the inner link sorting component 52 feeds the corresponding number of inner link plates into the inner link feeding station 12, and the inner link indexing unit synchronously pushes multiple inner link plates to the press-fitting station 13. During the transfer process, due to the limiting effect of the profiling unit, the relative positions of the inner link plates remain unchanged. After entering the press-fitting station 13, the intermediate link feeding component 4 feeds the intermediate link plates between every two upper and lower inner link plates, the U-shaped attachment feeding component 3 feeds the U-shaped attachments into the press-fitting station 13, the pin shaft feeding component 6 feeds the pin shafts into the press-fitting station 13, and finally the press-fitting module 2 works to press-fit the pin shafts into the pin holes to complete the assembly of a single link. After each link is assembled, the feeding drive unit works to drive the chain to move, leaving space for the assembly of the next link.

[0065] An assembly method for a U-shaped attachment chain, using the automatic assembly machine as described above;

[0066] At least includes the following steps:

[0067] S1. Inner link sorting: The inner link sorting component 52 works to push the inner link plates to the inner link feeding station 12, and the inner link plates are matched with the profiling unit.

[0068] S2. Inner link transfer: The inner link transfer component 53 works to push the inner link plates along the inner link conveyor in segments to the press-fitting station 13; under the restriction of the profiling unit, the inner link plates remain stationary in the height direction during the transfer process.

[0069] S3. Connecting attachment feeding: The intermediate link feeding component 4 pushes the intermediate link plates into the press-fitting station 13, the pin shaft feeding component 6 pushes the pin shafts into the press-fitting station 13, and the U-shaped attachment feeding component 3 pushes the U-shaped attachments into the press-fitting station 13.

[0070] S4. Press-fitting: The press-fitting module 2 works to press-fit the pin shafts into the U-shaped attachments, inner link plates, and intermediate link plates, and the feeding drive unit works to drive the chain to move to complete the assembly of a single section.

[0071] In summary, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic assembly machine for a U-shaped attachment chain, characterized in that, it at least includes: A frame, on which a workbench is provided. An assembly channel is provided on the workbench. An inner link feeding station and a pressing station are provided on the assembly channel. The assembly channel includes an inner link transfer section and a pressing section. The inner link feeding station is located in the inner link transfer section, and the pressing station is located in the connection area between the pressing section and the inner link conveying section; The inner link transfer section includes two guiding blocks arranged in parallel. An inner link transfer interval is formed between the two guiding blocks. The side of the guiding block facing the inner link transfer interval is provided with a profiling unit, and the profiling unit extends along the length direction of the inner link conveying section. A chain feeding drive unit for driving the chain to move unidirectionally along the assembly channel is also provided on the frame; An inner link feeding module, which includes an inner link sorting component and an inner link transfer component. The inner link sorting component is located on one side of the inner link feeding station. The inner link sorting component includes an inner link feeding unit, a first pushing member and a first driving unit. The first driving unit is used to drive the first pushing member to move between the inner link feeding unit and the inner link feeding station. The inner link transfer component includes a second pushing member and a second driving unit. The second driving unit is used to drive the second pushing member to move along the assembly channel between the inner link feeding station and the pressing station; A connecting accessory feeding module, which includes an intermediate link plate feeding component, a pin feeding component and a U-shaped accessory feeding component. The intermediate link plate feeding component and the U-shaped accessory feeding component are arranged opposite to each other left and right with respect to the pressing station. The intermediate link plate feeding component is used to feed the intermediate link plate into the pressing station, the pin feeding component is used to feed the pin into the pressing station, and the U-shaped accessory feeding component is used to feed the U-shaped accessory into the pressing station; A pressing module, which is used to press the pin into the U-shaped accessory, inner link and intermediate link plate.

2. The automatic assembly machine according to claim 1, characterized in that: The profiling unit includes a chute matching the inner link plate in the inner link. The chutes on the two guiding blocks correspond one by one and are arranged opposite to each other left and right.

3. The automatic assembly machine according to claim 2, characterized in that: The number of the profiling units is at least two groups and are distributed in sequence in the height direction. A number of pads are also provided at the inner link feeding station, and one pad is correspondingly provided under each profiling unit.

4. The automatic assembly machine according to claim 1, characterized in that: The chain feeding drive unit includes an insertion plate, a mounting slider, a transverse driving member and a longitudinal driving member. The insertion plate is located on one side of the assembly channel and is slidably connected to the mounting slider. The transverse driving unit is arranged on the mounting slider and is used to drive the insertion plate to reciprocate perpendicular to the assembly channel. The longitudinal driving unit is used to drive the mounting slider to reciprocate along the extension direction of the assembly channel.

5. The automatic assembly machine according to claim 1, characterized in that: The described inner link feeding unit includes a first vibrating bowl and a first guide tube. The inlet end of the first guide tube is communicated with the outlet of the first vibrating bowl, and the outlet end of the first guide tube corresponds to the first pushing member.

6. The automatic assembly machine according to claim 1, characterized in that: The press-fitting module is located above the press-fitting station. The press-fitting module includes a press-fitting head and a press-fitting power unit. The press-fitting power unit is used to drive the press-fitting head to move up and down; two parallel ejector pins are provided on the press-fitting head.

7. The automatic assembly machine according to any one of claims 1-6, characterized in that: The intermediate link plate feeding assembly includes an intermediate link plate feeding unit, a third pushing member and a third driving unit. The third driving unit is used to drive the third pushing member to move between the intermediate link plate feeding unit and the press-fitting station.

8. The automatic assembly machine according to any one of claims 1-6, characterized in that: The pin feeding assembly includes a pin feeding unit, a fourth pushing member and a fourth driving unit. The fourth driving unit is used to drive the fourth pushing member to move between the pin feeding unit and the press-fitting station.

9. The automatic assembly machine according to any one of claims 1-6, characterized in that: The U-shaped accessory feeding assembly includes a U-shaped accessory feeding unit, a fifth pushing member and a fifth driving unit. The fifth driving unit is used to drive the fifth pushing member to move between the U-shaped accessory feeding unit and the press-fitting station.

10. An assembly method for a U-shaped accessory chain, characterized in that using the automatic assembly machine according to any one of claims 1-9; at least including the following steps: S1. Inner link sorting: The inner link sorting assembly works to push the inner link to the inner link feeding station, and the inner link is matched with the profiling unit; S2. Inner link transfer: The inner link transfer assembly works to push the inner link along the inner link conveyor section by section to the press-fitting station; under the restriction of the profiling unit, the inner link remains stationary in the height direction during the transfer process; S3. Connecting accessory feeding: The intermediate link plate feeding assembly pushes the intermediate link plate into the press-fitting station, the pin feeding assembly pushes the pin into the press-fitting station, and the U-shaped accessory feeding assembly pushes the U-shaped accessory into the press-fitting station; S4. Press-fitting: The press-fitting module works to press the pin into the U-shaped accessory, inner link and intermediate link plate to complete the assembly of a single section.

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