Assembly equipment and assembly method for leaf chain

Abstract

The present invention relates to the field of chain processing, and specifically discloses an assembly device and assembly method for a plate chain. The assembly device includes a frame, a middle chain plate conveying module, an accessory conveying module and a press-fitting module. The chain plate dislocation module includes a dislocation component, a transverse drive unit and a longitudinal drive unit; the dislocation component includes a first clamp and a second clamp; the chain plate dislocation module also includes a sliding mounting seat, and the sliding mounting seat is connected with a first dislocation slider and a second dislocation slider, and the first dislocation slider and the second dislocation slider are connected by an elastic member, the first clamp is fixedly connected to the first dislocation slider, and the second clamp is fixedly connected to the second dislocation slider; the sliding mounting seat is also provided with a limiting unit corresponding to the second dislocation slider. The above-mentioned assembly equipment can automatically complete the dislocation operation of the chain plate, and the degree of automation and assembly efficiency are higher.

Description

Technical Field

[0001] The present invention relates to the field of chain processing, and in particular to an assembly device and an assembly method for a plate chain. Background Art

[0002] A leaf chain is a chain formed by connecting a pin and multiple chain plates. It is mainly used in special equipment such as forklifts and stackers. Because of its advantages of high tensile strength, small elastic elongation, and ability to withstand large impact loads, it is often used as a safety component.

[0003] With the development of the times and the advancement of science and technology, backward industrial chains in various industries will also go through a process of elimination and renewal. In this process, if enterprises do not innovate, they will also face the danger of being eliminated.

[0004] Currently, leaf chains are still commonly assembled by manual press-fitting, which is labor-intensive. Common chain assembly machines can only assemble chains with a single arrangement. The greatest difficulty in assembling leaf chains lies in the misalignment of multiple layers of chain plates. Manually displacing the plates before press-fitting significantly reduces the degree of automation, remains labor-intensive, and results in low assembly efficiency. Existing chain assembly machines struggle to achieve this misalignment during leaf chain assembly. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an assembly device and an assembly method for a plate chain, which can automatically complete the dislocation operation of the chain plates, with a higher degree of automation and assembly efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an assembly device for a leaf chain, comprising at least:

[0007] A frame, wherein the frame is provided with an assembly channel, and the assembly channel is provided with a middle chain plate feeding station and a pressing station in sequence;

[0008] The middle chain plate conveying module is located on one side of the assembly channel and corresponds to the middle chain plate feeding station; the middle chain plate conveying module includes a first push plate, a middle chain plate feeding unit and a first drive unit, the first drive unit drives the first push plate to reciprocate between the middle chain plate feeding unit and the middle chain plate feeding station; the middle chain plate feeding unit includes a first feeding cylinder arranged in a vertical direction, and the lower end of the first feeding cylinder is provided with an opening for the first push plate to pass through;

[0009] The chain plate dislocation module includes a dislocation component, a transverse drive unit, and a longitudinal drive unit; the dislocation component and the middle chain plate conveying module are opposite to each other on the left and right sides relative to the assembly channel;

[0010] The dislocation assembly includes a first clamping jaw and a second clamping jaw, wherein the first clamping jaw includes at least one first clamping plate, and the second clamping jaw includes at least one second clamping plate, wherein the first clamping plates and the second clamping plates are alternately stacked in a vertical direction; the front ends of the first clamping plates and the second clamping plates are respectively provided with contoured grooves matching the middle chain plates;

[0011] The chain plate dislocation module further includes a sliding mounting seat, to which a first dislocation slider and a second dislocation slider are connected, the first dislocation slider and the second dislocation slider being connected via an elastic member, the first clamping jaw being fixedly connected to the first dislocation slider, and the second clamping jaw being fixedly connected to the second dislocation slider; the sliding mounting seat is further provided with a limiting unit corresponding to the second dislocation slider;

[0012] The longitudinal drive unit is used to drive the sliding mounting seat to move perpendicular to the assembly channel; the transverse drive unit is arranged on the sliding mounting seat and connected to the first offset slider;

[0013] Accessory conveying module, the accessory conveying module is used to convey the outer link plate and the pin shaft to the press-fitting station;

[0014] The press-fitting module includes a pin press-fitting unit located above the assembly channel, and the pin press-fitting unit corresponds to the press-fitting station.

[0015] During leaf chain assembly, the mid-chain plate conveyor module automatically pushes a preset number of mid-chain plates into the mid-chain plate feed station. Initially, the contoured grooves on the first and second clamping plates align vertically. Simultaneously, the stopper contacts the second offset slider, bringing the first and second sliders closer together and compressing the elastic element. Because the mid-chain plate conveyor module and the offset assembly are positioned opposite each other, the mid-chain plates, once pushed into the mid-chain plate feed station, fit neatly into the contoured grooves of the offset assembly.

[0016] After the middle chain plate enters the contoured groove, the transverse drive unit drives the first offset slider to move relative to the second offset slider. At this time, the second offset slider is still in contact with the limit unit and is in a stationary state under the elastic force of the elastic part. In this process, the first splint and the second splint are gradually offset, and synchronously drive the middle chain plate to complete the offset.

[0017] As the first offset slider moves relative to the second, the elastic member gradually resets until it transitions from a compressed state to an extended state. Once the elastic member has stretched to a certain extent, its elastic force drives the second offset slider to begin moving synchronously with the first, completing the center link plate's offset process.

[0018] Subsequently, driven by the transverse driving unit, the first dislocation unit and the second dislocation unit move synchronously and transfer the corresponding middle chain plate from the middle chain plate feeding station to the pressing station.

[0019] Finally, the accessories conveying module sends the outer link plate and pin shaft to the pressing station, and the pressing module completes the pressing, completing the entire assembly process.

[0020] The assembly equipment of the present application can automatically realize the dislocation operation of the chain plate, greatly improving the automation level and assembly efficiency of the plate chain assembly.

[0021] Preferably, the middle chain plate feeding unit includes a first material placing cylinder arranged in a vertical direction, and an opening is provided at the lower end of the first material placing cylinder for the first push plate to pass through; the first push plate is also provided with a material receiving channel arranged in a length direction, and the material receiving channel passes through the first push plate in a vertical direction;

[0022] The middle chain plate conveying module also includes a material receiving assembly, which includes a material receiving cylinder and a push head. The push head is located below the middle chain plate feeding unit and is aligned with the material receiving channel; the material receiving cylinder drives the push head to move up and down.

[0023] Due to the large number of chain plates pushed at a time, there is a certain drop in the chain plates as they fall along the feeding barrel, making it difficult to ensure the correct posture of the chain plates after they fall. By setting up a material receiving component, it can play a guiding and buffering role in the process of the chain plates falling along the feeding barrel, ensuring that the chain plates fall smoothly and the correct posture of the chain plates when they are pushed into the chain plate feeding station, creating conditions for subsequent misalignment and press-fitting operations.

[0024] Preferably, a control module is further included, which is electrically connected to the first drive unit, the transverse drive unit and the longitudinal drive unit, and controls the working states of the first drive unit, the transverse drive unit and the longitudinal drive unit respectively.

[0025] Preferably, the press-fitting stations include a pin press-fitting station and an upper outer chain plate press-fitting station;

[0026] The accessory conveying module includes a composite conveying assembly and an upper outer chain plate conveying assembly, wherein the composite conveying assembly corresponds to the pin shaft pressing station, and the upper outer chain plate conveying assembly corresponds to the upper outer chain plate pressing station.

[0027] Preferably, the press-fitting module includes a pin press-fitting assembly and an upper outer chain plate press-fitting assembly, wherein the pin press-fitting assembly corresponds to the pin press-fitting station, and the upper outer chain plate press-fitting assembly corresponds to the upper outer chain plate press-fitting station;

[0028] The pin press assembly includes a first press power unit and a first press head, wherein the first press power unit is used to drive the first press head to move up and down;

[0029] The upper outer link plate press-fitting assembly includes a second press-fitting power unit and a second press-fitting head. The second press-fitting power unit is used to drive the second press-fitting head to reciprocate up and down.

[0030] The press-fitting process is divided into two steps: pin press-fitting and upper outer link plate press-fitting. During the pin press-fitting process, the connection between the middle chain plate and the lower outer link plate is completed, and during the upper outer link plate press-fitting process, the connection between the upper outer link plate and the pin is completed.

[0031] Preferably, the composite conveying assembly includes a lower outer chain plate conveying mechanism and a pin conveying mechanism.

[0032] The lower outer chain plate conveying mechanism includes a second push plate, a lower outer chain plate feeding unit and a second driving unit. The lower outer chain plate feeding unit conveys the lower outer chain plate to the front end of the second push plate. The second driving unit is used to drive the second push plate to convey the front end of the lower outer chain plate to the pin shaft pressing station.

[0033] The pin conveying mechanism includes a third push plate, a pin feeding unit and a third driving unit. The pin feeding unit conveys the pin to the front end of the third push plate. The third driving unit is used to drive the third push plate to convey the pin at the front end to the pin pressing station.

[0034] The third push plate and the second push plate are stacked up and down.

[0035] The second push plate and the third push plate work simultaneously to complete the feeding operation of the pin shaft and the lower outer link plate at a single station.

[0036] Preferably, the press-fitting guide assembly further comprises two guide rods arranged in parallel in a vertical direction, and a guide drive unit for driving the guide rods to move up and down in the vertical direction;

[0037] The bottom of the assembly channel is provided with guide holes corresponding to the guide rods one by one, and the guide holes are located at the pin shaft pressing station; the guide rod has at least two position states relative to the guide hole. In the first position state, the upper end of the guide rod extends from the guide hole, and in the second position state, the guide rod completely withdraws from the assembly channel.

[0038] Because the pins must be inserted sequentially through multiple middle links and a single lower outer link during press-fitting, the alignment of the pin holes between the links is critical. Guide rods, inserted between the links, pass through the lower outer link and the middle link from bottom to top, aligning the pin holes. During press-fitting, the guide rods gradually withdraw from each link as the pin is inserted. This guide rod guides the pin during press-fitting, ensuring it smoothly and sequentially enters the pin holes of each link.

[0039] Preferably, the upper outer chain plate conveying module includes a fourth push plate, an upper outer chain plate feeding unit and a fourth drive unit. The upper outer chain plate feeding unit is used to convey the upper outer chain plate to the front end of the fourth push plate, and the fourth drive unit is used to drive the fourth push plate to convey the upper outer chain plate to the upper outer chain plate pressing station.

[0040] Preferably, the fourth push plate is provided with a slide groove extending along the length direction, and the slide groove extends to the front end of the fourth push plate; it also includes a jump joint assembly, and the jump joint assembly includes a stop block and a fifth drive unit, the stop block is arranged in the slide groove, and the fifth drive unit drives the stop block to reciprocate along the slide groove.

[0041] There is a gap between the pin shaft and the pin hole of the middle chain plate, while the pin holes of the upper outer chain plate and the lower outer chain plate are interference fit. After the press fitting is completed, the pin shaft is fixedly connected to the upper outer chain plate and the lower outer chain plate, and can rotate relative to the middle chain plate.

[0042] The function of the jump joint assembly is to prevent the upper outer link plate from being fed in after a certain length. After the press-fitting is completed, one end of the corresponding pin shaft is connected to the lower outer link plate, and the other end is still free. Subsequently, only the corresponding pin shaft and the lower outer link plate need to be removed as a whole to realize the fixed-length segmentation of the chain, creating conditions for subsequent ring riveting operations.

[0043] A method for assembling a leaf chain, using the assembly device for a leaf chain as described above;

[0044] At least the following steps are included:

[0045] S1. Middle chain plate feeding: The middle chain plate feeding unit feeds a fixed amount of middle chain plates, and the first drive unit drives the first push plate to push the corresponding middle chain plate to the middle chain plate feeding station;

[0046] S2. Center chain plate misalignment: The longitudinal drive unit first drives the sliding mount toward the assembly channel. The contoured grooves on the first and second jaws align, and the elastic member is compressed. The contoured grooves align with the center chain plate that is fed into the center chain plate feed station by the first push plate.

[0047] Then the transverse drive unit starts to work, and the first offset slider starts to slide, and at the same time drives the middle chain plate matched with the first clamping jaw to move along the assembly channel; at this time, under the elastic force of the elastic member, the second offset slider remains in a stationary state, and the second clamping jaw and the middle chain plate matched with the second clamping jaw also remain in a stationary state accordingly;

[0048] After the first offset slider moves a preset distance, the elastic member changes from a compressed state to an extended state, and the elastic member drives the second offset slider to start moving, and at the same time drives the middle chain plate matched with the second clamping jaw to move along the assembly channel until the middle chain plate matched with the first clamping jaw enters the press-fitting station;

[0049] Finally, the transverse drive unit and the longitudinal drive unit cooperate to drive the first clamp and the second clamp to reset, completing a single mid-chain plate dislocation operation;

[0050] S3. Accessory feeding: The accessory conveying module works to feed the outer chain plate and pin into the press-fitting station respectively;

[0051] S4. Pressing: The press-fitting module presses the pin shaft between the outer link plate and the middle link plate to complete the assembly of the leaf chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic structural diagram of the assembly equipment for the leaf chain according to this embodiment;

[0053] Figure 2 This is a structural schematic diagram of the assembly equipment for the leaf chain according to this embodiment from another perspective;

[0054] Figure 3 This is a front view of the assembly equipment for the leaf chain according to this embodiment;

[0055] Figure 4 This is a schematic structural diagram of an assembly channel in an assembly device for a leaf chain according to this embodiment;

[0056] Figure 5 This is a partial view of the middle chain plate feeding station and the pin shaft pressing station in the assembly equipment for the leaf chain of this embodiment;

[0057] Figure 6 This is a schematic diagram of the partial structure of the assembly equipment for the leaf chain in this embodiment;

[0058] Figure 7 This is a partial top view of the assembly equipment for the leaf chain of this embodiment;

[0059] Figure 8 This is a schematic structural diagram of the cooperation between the middle chain plate conveying module and the chain plate staggering module in the assembly equipment for the leaf chain of this embodiment;

[0060] Figure 9This is a schematic structural diagram of the middle chain plate conveying module in the assembly equipment for the leaf chain of this embodiment;

[0061] Figure 10 Schematic diagram of the structure of the chain plate dislocation module in the assembly equipment for the leaf chain of this embodiment;

[0062] Figure 11 This is a top view of the middle chain plate dislocation module of the assembly equipment for the leaf chain of this embodiment; it is in an aligned state at this time.

[0063] Figure 12 This is a top view of the middle chain plate dislocation module of the assembly equipment for the leaf chain in this embodiment; it is in a dislocated state at this time.

[0064] Figure 13 Schematic diagram of the structure of the composite conveying assembly in the assembly equipment for the leaf chain of this embodiment;

[0065] Figure 14 1 is a top view of a composite conveying assembly in an assembly device for a leaf chain according to this embodiment;

[0066] Figure 15 Schematic diagram of the structure of the press-fit guide assembly in the assembly equipment for the leaf chain according to this embodiment;

[0067] Figure 16 This is a structural schematic diagram of another perspective of the composite conveying assembly in the assembly equipment for the leaf chain of this embodiment;

[0068] Figure 17 Schematic diagram of the structure of the upper outer chain plate conveying assembly in the assembly equipment for the leaf chain of this embodiment;

[0069] Figure 18 This is a structural diagram of the cooperation between the adjustment component and the upper outer chain plate conveying component in the assembly equipment for the leaf chain in this embodiment. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, 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 intended to limit the present invention. Example

[0071] like Figure 1-Figure 7 As shown, an assembly device for a plate chain includes a frame 1, a middle chain plate conveying module 5, a chain plate dislocation module 3, an accessory conveying module and a press-fitting module 2.

[0072] Among them, such as Figure 1-Figure 5As shown, the frame 1 is provided with a workbench 11, and an assembly channel 12 is provided on the workbench 11. The assembly channel 12 is provided with a middle plate feed station 121 and a press-fit station. Specifically, the press-fit stations include a pin press-fit station 122, an upper outer plate press-fit station 123, and a head-exposing station 124. The bottom surface of the assembly channel 12 has a height difference. Specifically, the bottom surface of the middle plate feed station is higher than that of the press-fit station, and the height difference is equal to the thickness of the lower outer plate.

[0073] Among them, such as Figure 8 and Figure 9 As shown, the middle chain plate conveying module 5 is located on one side of the assembly channel 12 and corresponds to the middle chain plate feeding station 121. The middle chain plate conveying module 5 includes a first push plate 51, a middle chain plate feeding unit and a first drive unit 53. The first drive unit 53 drives the first push plate 51 to reciprocate between the middle chain plate feeding unit and the middle chain plate feeding station 121. Specifically, the middle chain plate feeding unit includes a first feeding barrel 52 arranged in the vertical direction. The lower end of the first feeding barrel 52 is provided with an opening for the first push plate 51 to pass through. During operation, the middle chain plate is manually placed into the first feeding barrel 52, and the middle chain plate automatically falls into the front end of the first push plate 51 under the action of gravity.

[0074] Further, such as Figure 9 As shown, the first push plate 51 is further provided with a material receiving channel 511 arranged along its length. The material receiving channel 511 vertically penetrates the first push plate 51. The mid-chain plate conveying module 5 also includes a material receiving assembly 8, which includes a material receiving cylinder 81 and a push head 82. The push head 82 is located below the mid-chain plate feeding unit and is aligned with the material receiving channel 511. The material receiving cylinder 81 drives the push head 82 to move up and down.

[0075] Since a large number of intermediate chain plates 01 are pushed at a time, there is a certain drop in the intermediate chain plates 01 as they fall along the first feeding barrel, making it difficult to maintain the correct posture of the intermediate chain plates 01 after they fall. By providing the receiving assembly 8, it can guide and cushion the intermediate chain plates 01 as they fall along the first feeding barrel, ensuring that they fall smoothly and maintain the correct posture when they are pushed into the intermediate chain plate feeding station 121, creating conditions for subsequent misalignment and press-fitting operations.

[0076] Among them, such as Figure 10 – Figure 12 As shown, the chain plate dislocation module 3 includes a dislocation component, a transverse drive unit 32 and a longitudinal drive unit 31. The dislocation component and the middle chain plate conveying module 5 are opposite to each other with respect to the assembly channel 12.

[0077] Specifically, such as Figure 10 – Figure 12As shown, the offset assembly includes a first clamping jaw 38 and a second clamping jaw 39. The first clamping jaw 38 includes at least one first clamping plate, and the second clamping jaw 39 includes at least one second clamping plate. The first and second clamping plates are alternately stacked in a vertical direction. In this embodiment, the first clamping jaw 38 includes two first clamping plates, and the second clamping jaw 39 includes one second clamping plate, with the second clamping plate positioned between the two first clamping plates. The front ends of the first and second clamping plates are each provided with a contoured groove that matches the center link plate.

[0078] Specifically, such as Figure 10 – Figure 12 As shown, the chain plate dislocation module 3 further includes a sliding mounting base 36, to which a first dislocation slider 33 and a second dislocation slider 34 are connected. The first dislocation slider 33 and the second dislocation slider 34 are connected via an elastic member 37. The first clamping jaw 38 is fixedly connected to the first dislocation slider 33, and the second clamping jaw 39 is fixedly connected to the second dislocation slider 34. The sliding mounting base 36 is also provided with a limiting unit 35 corresponding to the second dislocation slider 34.

[0079] The longitudinal driving unit 31 is used to drive the sliding mounting seat 36 to move perpendicularly to the assembly channel 12 . The transverse driving unit 32 is disposed on the sliding mounting seat 36 and connected to the first offset slider 33 .

[0080] In the initial state, the contoured grooves on the first and second clamping plates are aligned vertically, the limiting unit 35 is in contact with the second offset slider 34, the first offset slider 33 and the second slider are close to each other, and the elastic member 37 is in a compressed state. Because the middle chain plate conveying module 5 is positioned opposite the offset assembly, the middle chain plate, after being pushed into the middle chain plate feeding station 121, fits neatly into the contoured groove of the offset assembly.

[0081] After the middle chain plate 01 enters the contoured groove, the transverse drive unit 32 drives the first offset slider 33 to move relative to the second offset slider 34. At this time, the second offset slider 34 is still in contact with the limit unit 35 and is in a stationary state under the elastic force of the elastic member 37. In this process, the first splint and the second splint are gradually offset, and synchronously drive the middle chain plate to complete the offset.

[0082] As the first offset slider 33 moves relative to the second offset slider 34, the elastic member 37 gradually returns to its original position until it transitions from a compressed state to an extended state. When the elastic member 37 has stretched to a certain extent, its elastic force drives the second offset slider 34 to begin moving synchronously with the first offset slider 33, completing the center link plate's offset process.

[0083] Then, driven by the transverse driving unit 32 , the first dislocation unit and the second dislocation unit move synchronously, and transfer the corresponding middle chain plate from the middle chain plate feeding station 121 to the pressing station.

[0084] The accessory conveying module is used to convey the outer link plate and the pin shaft to the press-fitting station. Figure 6 and Figure 7 As shown, the accessory conveying module includes a composite conveying component 6 and an upper outer chain plate conveying component 7, wherein the composite conveying component 6 corresponds to the pin shaft pressing station 122, and the upper outer chain plate conveying component 7 corresponds to the upper outer chain plate pressing station 123.

[0085] Specifically, such as Figure 13-16 As shown, the composite conveying assembly 6 includes a lower outer chain plate conveying mechanism and a pin shaft conveying mechanism. The lower outer chain plate conveying mechanism includes a second push plate 66, a lower outer chain plate feeding unit, and a second drive unit. The lower outer chain plate feeding unit conveys the lower outer chain plate to the front end of the second push plate 66. The second drive unit is used to drive the second push plate 66 to convey the lower outer chain plate at the front end to the pin shaft pressing station 122. Specifically, the lower outer chain plate feeding unit includes a second loading barrel and a slice push plate 64. The lower end of the second loading barrel is provided with an opening for the slice push plate 64 to pass through. The slice push plate 64 is used to push the lower outer chain plate from the second loading barrel to the front end of the second push plate 66. During operation, the lower outer chain plate is manually placed into the second loading barrel, and the lower outer chain plate automatically falls to the front end of the slice push plate 64 under the action of gravity.

[0086] like Figure 13-16 As shown, the pin conveying mechanism includes a third push plate 62, a pin feed unit, and a third drive unit 65. The pin feed unit conveys the pins to the front end of the third push plate 62, and the third drive unit 65 is used to drive the third push plate 62 to convey the pins at the front end to the pin press-fitting station 122. Specifically, the pin feed unit includes two third feeding barrels 61, each of which is provided with a blanking channel that matches the pins. The front end of the third push plate 62 is equipped with a pin clamping unit, and the outlet end of the third feeding barrel 61 corresponds to the pin clamping unit. During operation, a vibrating plate is used to sort the pins to ensure that the pins enter the third blanking barrel in a directional manner.

[0087] As a specific embodiment, the third push plate 62 and the second push plate 66 are stacked up and down. The second push plate 66 and the third push plate 62 work simultaneously to complete the feeding operation of the pin shaft and the lower outer link plate at a single station.

[0088] Specifically, such as Figure 1 and Figure 15As shown, the press-fitting guide assembly 4 is further included. The press-fitting guide assembly 4 includes two guide rods 41 arranged in parallel along the vertical direction, and a guide drive unit 42 that drives the guide rods 41 to move up and down in the vertical direction. The guide rods 41 and the guide drive unit 42 are located below the workbench 11. The upper ends of the guide rods 41 are provided with rounded corners or chamfers.

[0089] The bottom of the assembly channel 12 is provided with guide holes corresponding one-to-one with the guide rods 41. The guide holes are located at the pin press-fitting station 122. The guide rods 41 have at least two positions relative to the guide holes. In the first position, the upper end of the guide rods 41 extends from the guide holes. In the second position, the guide rods 41 are completely retracted from the assembly channel 12.

[0090] Because the pin must be inserted through multiple middle links and a single lower outer link during press-fitting, the alignment of the pin holes between the links is highly critical. Guide rods 41, inserted between the links, pass through the lower outer link and the middle link from bottom to top, aligning the pin holes. During press-fitting, the guide rods 41 gradually withdraw from each link as the pin is inserted. This guide rods 41 guide the pin during press-fitting, ensuring it smoothly and sequentially enters the pin holes of each link.

[0091] like Figure 17 As shown, the upper outer chain plate conveying module includes a fourth push plate 72, an upper outer chain plate feeding unit, and a fourth drive unit 73. The upper outer chain plate feeding unit is used to convey the upper outer chain plate to the front end of the fourth push plate 72, and the fourth drive unit 73 is used to drive the fourth push plate 72 to convey the upper outer chain plate to the upper outer chain plate press-fitting station 123. Specifically, the upper outer chain plate feeding unit includes a fourth loading barrel 71 arranged in a vertical direction. The lower end of the fourth loading barrel 71 is provided with an opening for the fourth pushing plate 72 to pass through. The fourth pushing plate 72 is used to push the upper outer chain plate from the fourth loading barrel 71 to the upper outer chain plate press-fitting station 123. During operation, the upper outer chain plate is manually placed into the fourth loading barrel 71, and the upper outer chain plate automatically falls to the front end of the fourth pushing plate 72 under the action of gravity.

[0092] As a specific implementation method, Figure 17 and Figure 18 As shown, the fourth push plate 72 is provided with a slide groove 721 extending along the length direction, and the slide groove 721 extends to the front end of the fourth push plate 72. The jump joint assembly 9 is also included, and the jump joint assembly 9 includes a stopper 91 and a fifth driving unit 92. The stopper 91 is disposed in the slide groove 721, and the fifth driving unit 92 drives the stopper 91 to reciprocate along the slide groove 721.

[0093] There is a gap between the pin shaft and the pin hole of the middle chain plate, while the pin holes of the upper outer chain plate and the lower outer chain plate are interference fit. After the press fitting is completed, the pin shaft is fixedly connected to the upper outer chain plate and the lower outer chain plate, and can rotate relative to the middle chain plate.

[0094] The function of the jump joint assembly 9 is to not feed the upper outer link plate after a certain length. After the press-fitting is completed, one end of the corresponding pin shaft is connected to the lower outer link plate, and the other end is still in a free state. Subsequently, only the corresponding pin shaft and the lower outer link plate need to be removed as a whole to realize the fixed-length segmentation of the chain, creating conditions for subsequent ring riveting operations.

[0095] Among them, such as Figure 3 As shown, the press-fitting module 2 includes a pin press-fitting assembly 21, an upper outer link plate press-fitting assembly 22 and an exposed head assembly 23, wherein the pin press-fitting assembly 21 corresponds to the pin press-fitting station 122, the upper outer link plate press-fitting assembly 22 corresponds to the upper outer link plate press-fitting station 123, and the exposed head assembly 23 corresponds to the exposed head station 124.

[0096] The pin press assembly 21 comprises a first press power unit and a first press head. The first press power unit is used to drive the first press head in reciprocating motion. Specifically, the first press head includes two parallel ejectors, which are used to press the pin into the chain plate. Because the pin clamping unit is located at the front end of the third push plate 62, the ejector structure facilitates cooperation with the pin contact unit.

[0097] The upper outer link plate press-fitting assembly 22 includes a second press-fitting power unit and a second press head. The second press-fitting power unit is used to drive the second press head in reciprocating motion. Specifically, the second press head comprises two press units, each of which includes a sleeve and a movable ejector block connected to the sleeve via a spring. During the press-fitting process, the movable ejector block contacts the pin and, under the reaction force of the pin, gradually retreats into the sleeve, overcoming the spring force. Finally, the end face of the sleeve contacts the upper outer link plate, press-fitting the upper outer link plate.

[0098] The exposed head assembly 23 includes a third press-fitting power unit and a third press-fitting head, and the third press-fitting head is provided with an exposed head mold.

[0099] The pressing process is divided into three steps: pin pressing, upper outer link plate pressing and head exposure. During the pin pressing process, the connection between the middle chain plate and the lower outer link plate is completed. The upper outer link plate pressing process completes the connection between the upper outer link plate and the pin. The head exposure operation plays the role of adjusting the position between the upper outer link plate and the pin.

[0100] Furthermore, it also includes a control module, which is electrically connected to the first drive unit 53, the second drive unit, the third drive unit 65, the fourth drive unit 73, the transverse drive unit 32 and the longitudinal drive unit 31, and controls the working states of the first drive unit 53, the second drive unit, the third drive unit 65, the fourth drive unit 73, the transverse drive unit 32 and the longitudinal drive unit 31, respectively.

[0101] A method for assembling a leaf chain, using the assembly device for a leaf chain as described above;

[0102] At least the following steps are included:

[0103] S1. Chain plate feeding: The chain plate feeding unit feeds a fixed amount of chain plate, and the first drive unit 53 drives the first push plate 51 to push the corresponding chain plate to the chain plate feeding station 121;

[0104] S2. Misalignment of the middle chain plate: First, the longitudinal drive unit 31 drives the sliding mounting base 36 toward the assembly channel 12. At this time, the contoured grooves on the first and second jaws 38 and 39 are aligned, and the elastic member 37 is in a compressed state; the contoured grooves match the middle chain plate fed into the middle chain plate feed station 121 by the first push plate 51;

[0105] Then, the transverse drive unit 32 operates, and the first offset slider 33 begins to slide, simultaneously driving the middle chain plate matched with the first clamping jaw 38 to move along the assembly channel 12. At this time, under the elastic force of the elastic member 37, the second offset slider 34 remains in a stationary state, and the second clamping jaw 39 and the middle chain plate matched with the second clamping jaw 39 are also in a stationary state.

[0106] After the first offset slider 33 moves a preset distance, the elastic member 37 moves from a compressed state to an extended state, and the elastic member 37 drives the second offset slider 34 to start moving, and at the same time drives the middle chain plate matched with the second clamping jaw 39 to move along the assembly channel 12 until the middle chain plate matched with the first clamping jaw 38 enters the press-fitting station;

[0107] Finally, the transverse drive unit 32 and the longitudinal drive unit 31 cooperate to drive the first clamping jaw 38 and the second clamping jaw 39 to reset, completing a single mid-chain plate dislocation operation;

[0108] S3. Pin and lower outer link plate feeding: The lower outer link plate feeding unit feeds the lower outer link plate into the front end of the second push plate 66, and the pin feeding unit feeds the pin into the front end of the third push plate 62; the second drive unit and pushes the lower outer link plate into the pin press-fitting station 122, while the third drive unit 65 pushes the pin into the pin press-fitting station 122;

[0109] S4 pin press fitting: Pin press fitting assembly 21 work, the pin sequentially pressed into the middle chain plate and the lower outer chain plate;

[0110] S5. Upper outer chain plate feeding: The upper outer chain plate feeding unit feeds the upper outer chain plate into the front end of the fourth push plate 72, and the fourth drive unit 73 pushes the upper outer chain plate into the upper outer chain plate press-fitting station 123;

[0111] S4. Press-fitting the outer chain plate: The press-fitting assembly 22 on the outer chain plate completes the press-fitting operation between the outer chain plate and the pin;

[0112] S4. Heading: The head assembly 23 works to adjust the relative position between the upper outer link plate and the pin shaft.

[0113] In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An assembly device for a leaf chain, characterized in that: At least: A frame, wherein the frame is provided with an assembly channel, and the assembly channel is provided with a middle chain plate feeding station and a pressing station in sequence; The middle chain plate conveying module is located on one side of the assembly channel and corresponds to the middle chain plate feeding station; the middle chain plate conveying module includes a first push plate, a middle chain plate feeding unit and a first drive unit, the first drive unit drives the first push plate to reciprocate between the middle chain plate feeding unit and the middle chain plate feeding station; the middle chain plate feeding unit includes a first feeding cylinder arranged in a vertical direction, and the lower end of the first feeding cylinder is provided with an opening for the first push plate to pass through; The chain plate dislocation module includes a dislocation component, a transverse drive unit, and a longitudinal drive unit; the dislocation component and the middle chain plate conveying module are opposite to each other on the left and right sides relative to the assembly channel; The dislocation assembly includes a first clamping jaw and a second clamping jaw, wherein the first clamping jaw includes at least one first clamping plate, and the second clamping jaw includes at least one second clamping plate, wherein the first clamping plates and the second clamping plates are alternately stacked in a vertical direction; the front ends of the first clamping plates and the second clamping plates are respectively provided with contoured grooves matching the middle chain plates; The chain plate dislocation module further includes a sliding mounting seat, to which a first dislocation slider and a second dislocation slider are connected, the first dislocation slider and the second dislocation slider being connected via an elastic member, the first clamping jaw being fixedly connected to the first dislocation slider, and the second clamping jaw being fixedly connected to the second dislocation slider; the sliding mounting seat is further provided with a limiting unit corresponding to the second dislocation slider; The longitudinal drive unit is used to drive the sliding mounting seat to move perpendicular to the assembly channel; the transverse drive unit is arranged on the sliding mounting seat and connected to the first offset slider; Accessory conveying module, the accessory conveying module is used to convey the outer link plate and the pin shaft to the press-fitting station; The press-fitting module includes a pin press-fitting unit located above the assembly channel, and the pin press-fitting unit corresponds to the press-fitting station.

2. The assembly equipment for leaf chains according to claim 1, characterized in that: The first push plate is further provided with a material receiving channel arranged along the length direction, and the material receiving channel passes through the first push plate in the vertical direction; The middle chain plate conveying module also includes a material receiving assembly, which includes a material receiving cylinder and a push head. The push head is located below the middle chain plate feeding unit and is aligned with the material receiving channel; the material receiving cylinder drives the push head to move up and down.

3. The assembly equipment for leaf chains according to claim 1, characterized in that: It also includes a control module, which is electrically connected to the first drive unit, the transverse drive unit and the longitudinal drive unit, and controls the working states of the first drive unit, the transverse drive unit and the longitudinal drive unit respectively.

4. The assembly device for a leaf chain according to any one of claims 1 to 3, characterized in that: The press-fitting stations include a pin press-fitting station and an upper outer chain plate press-fitting station; The accessory conveying module includes a composite conveying assembly and an upper outer chain plate conveying assembly, wherein the composite conveying assembly corresponds to the pin shaft pressing station, and the upper outer chain plate conveying assembly corresponds to the upper outer chain plate pressing station.

5. The assembly device for a leaf chain according to claim 4, characterized in that: The press-fitting module includes a pin press-fitting assembly and an upper outer chain plate press-fitting assembly, wherein the pin press-fitting assembly corresponds to the pin press-fitting station, and the upper outer chain plate press-fitting assembly corresponds to the upper outer chain plate press-fitting station; The pin press assembly includes a first press power unit and a first press head, wherein the first press power unit is used to drive the first press head to move up and down; The upper outer link plate press-fitting assembly includes a second press-fitting power unit and a second press-fitting head. The second press-fitting power unit is used to drive the second press-fitting head to reciprocate up and down.

6. The assembly device for a leaf chain according to claim 4, characterized in that: The composite conveying assembly includes a lower outer chain plate conveying mechanism and a pin conveying mechanism. The lower outer chain plate conveying mechanism includes a second push plate, a lower outer chain plate feeding unit and a second driving unit. The lower outer chain plate feeding unit conveys the lower outer chain plate to the front end of the second push plate. The second driving unit is used to drive the second push plate to convey the front end of the lower outer chain plate to the pin shaft pressing station. The pin conveying mechanism includes a third push plate, a pin feeding unit and a third driving unit. The pin feeding unit conveys the pin to the front end of the third push plate. The third driving unit is used to drive the third push plate to convey the pin at the front end to the pin pressing station. The third push plate and the second push plate are stacked up and down.

7. The assembly device for a leaf chain according to claim 5, characterized in that: The press-fitting guide assembly further includes two guide rods arranged in parallel along a vertical direction, and a guide drive unit for driving the guide rods to move up and down along the vertical direction; The bottom of the assembly channel is provided with guide holes corresponding to the guide rods one by one, and the guide holes are located at the pin shaft pressing station; the guide rod has at least two position states relative to the guide hole. In the first position state, the upper end of the guide rod extends from the guide hole, and in the second position state, the guide rod completely withdraws from the assembly channel.

8. The assembly equipment for leaf chains according to claim 4, characterized in that: The upper outer chain plate conveying module includes a fourth push plate, an upper outer chain plate feeding unit and a fourth driving unit. The upper outer chain plate feeding unit is used to convey the upper outer chain plate to the front end of the fourth push plate, and the fourth driving unit is used to drive the fourth push plate to convey the upper outer chain plate to the upper outer chain plate pressing station.

9. The assembly device for a leaf chain according to claim 8, characterized in that: The fourth push plate is provided with a slide groove extending along the length direction, and the slide groove extends to the front end of the fourth push plate; it also includes a jump joint assembly, and the jump joint assembly includes a stopper and a fifth drive unit. The stopper is arranged in the slide groove, and the fifth drive unit drives the stopper to reciprocate along the slide groove.

10. A method for assembling a leaf chain, characterized in that: Using the assembly device for a leaf chain according to any one of claims 1 to 9; At least the following steps are included: S1. Middle chain plate feeding: The middle chain plate feeding unit feeds a fixed amount of middle chain plates, and the first drive unit drives the first push plate to push the corresponding middle chain plate to the middle chain plate feeding station; S2. Center chain plate misalignment: The longitudinal drive unit first drives the sliding mount toward the assembly channel. The contoured grooves on the first and second jaws align, and the elastic member is compressed. The contoured grooves align with the center chain plate that is fed into the center chain plate feed station by the first push plate. Then the transverse drive unit starts to work, and the first offset slider starts to slide, and at the same time drives the middle chain plate matched with the first clamping jaw to move along the assembly channel; at this time, under the elastic force of the elastic member, the second offset slider remains in a stationary state, and the second clamping jaw and the middle chain plate matched with the second clamping jaw also remain in a stationary state accordingly; After the first offset slider moves a preset distance, the elastic member changes from a compressed state to an extended state, and the elastic member drives the second offset slider to start moving, and at the same time drives the middle chain plate matched with the second clamping jaw to move along the assembly channel until the middle chain plate matched with the first clamping jaw enters the press-fitting station; Finally, the transverse drive unit and the longitudinal drive unit cooperate to drive the first clamp and the second clamp to reset, completing a single mid-chain plate dislocation operation; S3. Accessory feeding: The accessory conveying module works to feed the outer chain plate and pin into the press-fitting station respectively; S4. Pressing: The press-fitting module presses the pin shaft between the outer link plate and the middle link plate to complete the assembly of the leaf chain.

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