An automatic chain plate assembly device and a chain plate part

Abstract

The present invention discloses an automatic chain plate assembly device and a chain plate part, which relate to the technical field of chain plate assembly, and include a pin bar feeding unit, a chain plate conveying unit, a chain plate positioning unit and a pin bar installation unit. In this device, each component is linked by a power cylinder, and each component moves simultaneously to perform the assembly work of the chain plate, avoiding the time waste caused by the control device having to receive and convey instructions to the components multiple times during assembly, reducing the assembly time and improving the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of chain plate assembly, and particularly relates to a chain plate automatic assembly device and a chain plate component. Background Art

[0002] In recent years, with the continuous development of the machinery industry and the continuous technical upgrading and transformation of existing equipment, it has promoted the more extensive application of automated equipment in the production and manufacturing field of mechanical parts. Among them, automated assembly, as an important part of automated equipment, plays an important role in the field of industrial automation.

[0003] At present, when the chain plates are made into a chain, automated equipment is used for assembly. The assembly steps of the automated equipment are as follows: S1, first, the chain plates and pin bars are conveyed to a specific position by controlling the conveying device; S2, then, the chain plate positioning unit is used to make the positions of the mounting holes of the two butted chain plates consistent; S3, finally, the pin bar is pressed into the mounting hole of the chain plate by the pressing device. Each step is started successively. That is, after the chain plates and pin bars are in place, the chain plate positioning unit is started for positioning, and after the positioning is completed, the pressing device is started to work. Each component is controlled to start and stop by the control device. Since the control device needs a certain reaction time (the time required for signal reception and instruction transmission) to control the next step of operation after each operation step is completed, the assembly efficiency of the chain plates is low.

[0004] Therefore, the present application provides a chain plate automatic assembly device and a chain plate component to meet the requirements. Summary of the Invention

[0005] The purpose of the present application is to provide a chain plate automatic assembly device and a chain plate component. In this device, each component is linked by a power cylinder, and each component moves simultaneously to perform the assembly work of the chain plate, avoiding the time waste caused by the control device receiving and transmitting instructions to the components multiple times during assembly, reducing the assembly time, and improving the work efficiency.

[0006] To achieve the above purpose, the present application provides the following technical solution: A chain plate automatic assembly device includes a pin bar feeding unit, a chain plate conveying unit, a chain plate positioning unit, and a pin bar installation unit;

[0007] The chain plate conveying unit includes a mounting frame with two limiting plates arranged thereon, a rotating rod and a limiting rod mounted on the mounting frame. Limiting steps are provided at the bottoms of the opposite ends of the two limiting plates. The rotating rod and the limiting rod are respectively fixedly connected to the moving groove through a first slider nut and a sliding sleeve. A spiral groove adapted to the first slider nut is provided on the rotating rod. A chain plate pusher is slidably arranged in the inner cavity of the moving groove, and the side end of the chain plate pusher is connected to the inner cavity of the moving groove through a first buffer spring. The upper end of the chain plate pusher penetrates through a moving opening provided on the mounting frame. The rotating rod is meshed and connected to a first worm rotatably arranged on the mounting frame through a first worm gear provided thereon. A spiral groove is provided on the first worm;

[0008] The pin bar feeding unit includes a feed bin with an opening and closing plate, a rotating column installed at the discharge port of the feed bin and having a loading groove provided thereon, a receiving groove installed on the limiting plate, and a driving rod rotatably arranged on the limiting plate. A second worm gear and a driving gear are respectively installed on the rotating shaft of the rotating column. The driving rod includes a rod body with a spiral groove and a second worm meshed and connected to the driving gear. The receiving groove is connected to the feed bin through a feeding channel;

[0009] The chain plate positioning unit includes a bracket fixed on the two limiting plates. A power cylinder is installed on the bracket. An arc-shaped limiting plate is provided below the movable end of the power cylinder. A limiting baffle is fixed at one lower end of the arc-shaped limiting plate. A column is fixed at the upper end of the arc-shaped limiting plate and is slidably inserted into the movable end. The arc-shaped limiting plate and the movable end are connected through a second buffer spring. Two pressing rods are fixed on the outer wall of the movable end, and the outer ends of the two pressing rods are respectively slidably arranged in the spiral grooves provided on the first worm and the rod body;

[0010] The pin bar installation unit includes a limiting groove provided on the limiting plate and connected to the receiving groove, and a driving column rotatably arranged on the limiting plate and meshed and connected to the driving gear through a transmission gear. A spiral groove is provided on the driving column. A pressing rod is slidably arranged in the limiting groove, and one end of the pressing rod is slidably arranged in the cavity of the spiral groove.

[0011] Preferably, the spiral groove on the driving rod includes a first spiral groove and a second spiral groove connected to each other. The distance between two adjacent grooves in the first spiral groove is greater than the distance between two grooves in the second spiral groove.

[0012] Preferably, the spiral groove on the driving column includes a third spiral groove and a fourth spiral groove connected to each other. The distance between two adjacent grooves in the third spiral groove is less than the distance between two grooves on the fourth spiral groove.

[0013] Preferably, a chain plate storage box is fixed on the mounting frame. Feeding openings and discharging openings are respectively arranged at the front and rear ends of the chain plate storage box. A support plate is fixed on the end of the chain plate push plate.

[0014] Preferably, the spiral groove of the rotating rod includes a fifth spiral groove and a sixth spiral groove which are connected to each other. The distance between two adjacent grooves in the fifth spiral groove is less than the distance between two grooves in the sixth spiral groove.

[0015] Preferably, a material pushing unit is further arranged below the chain plate storage box. The material pushing unit includes two limiting columns installed on the mounting frame, a driving rack installed at the lower end of the moving groove. A limiting slide rod is slidably arranged between the two limiting columns, and the limiting slide rod is fixed on a second slide block nut. The second slide block nut is installed on a reciprocating screw rod fixedly connected to the mounting frame. A hollow column is fixed at the upper end of the second slide block nut. The hollow column is inserted into the reciprocating screw rod. A jacking block is fixed at the upper end of the hollow column. An opening adapted to the jacking block is formed on the chain plate push plate. A hollow gear meshed with the driving rack is rotatably arranged on the reciprocating screw rod. A ratchet wheel is fixed on the inner wall of the hollow gear. The hollow gear is rotatably connected to the reciprocating screw rod. A circular ring is fixedly sleeved on the reciprocating screw rod. A ratchet pawl is rotatably arranged on the circular ring. The ratchet pawl is connected to the circular ring through a return spring. A limiting vertical plate is fixed on the circular ring.

[0016] Preferably, universal balls are densely arranged on the upper ends of the support plate and the chain plate push plate.

[0017] Preferably, a strip-shaped mounting groove consistent with the extending direction of the receiving groove is arranged at the inner cavity bottom of the receiving groove, and a magnetic strip is fixed in the inner cavity of the strip-shaped mounting groove.

[0018] A chain plate part, the chain plate part includes a chain plate and a pin strip. A snap ring with an opening is arranged in the mounting hole of the chain plate. An annular groove adapted to the snap ring is arranged on the pin strip.

[0019] In summary, the technical effects and advantages of the present invention:

[0020] The structure of the present invention is reasonable. Each component of the device is linked by a power cylinder, and each component moves simultaneously to perform the assembly work of the chain plate, avoiding the time waste caused by the control device receiving and transmitting instructions to the components multiple times during assembly, reducing the assembly time, and improving the work efficiency.

[0021] In the present invention, the spiral groove on the driving rod includes a first spiral groove and a second spiral groove that are connected to each other. As the spacing between the spiral grooves becomes closer, the driving rod will accelerate its rotation, which can cause the driving column to rotate rapidly. The rapidly rotating driving column will drive the extrusion rod to move rapidly, which can enable the extrusion rod to quickly press the pin into the mounting hole of the chain plate, thereby further improving work efficiency.

[0022] In the present invention, the spiral groove on the driving column includes a third spiral groove and a fourth spiral groove that are connected to each other. Since the spacing between the spiral grooves is increased, the movement speed of the extrusion rod can be further accelerated, the assembly of the pin strip can be further accelerated, and the working efficiency can be further improved.

[0023] In the present invention, a chain plate storage box is provided, and the chain plates in the chain plate storage box are continuously loaded by using a chain plate push plate. During this assembly process, the operator can continuously add chain plates and pins to the chain plate storage box invention and the silo, and there is no need for a chain plate loading device for loading. Removing the chain plate loading device can reduce the cost of the device and can enable uninterrupted assembly operations.

[0024] In the present invention, the spiral groove of the rotating rod includes a fifth spiral groove and a sixth spiral groove that are connected to each other, which can enable the chain plate push plate to move quickly, which is conducive to the stable drop of the chain plate onto the mounting frame, and can avoid damage to the arc-shaped limit plate and the chain plate push plate due to excessive extrusion force, while reducing the driving force required for the power cylinder to drive various components to perform assembly operations at the same time.

[0025] In the present invention, by adopting the lifting unit, no matter how large the distance between two adjacent stacked chain plates is, the chain plates can be stably placed on the mounting frame to avoid instability caused by collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Schematic diagram of the chain plate positioning unit structure;

[0029] Figure 3 For the present invention Figure 1 Schematic diagram of the chain plate transmission unit structure;

[0030] Figure 4 For the present inventionFigure 1 Schematic diagram of the upward view of the middle limit plate;

[0031] Figure 5 For the present invention Figure 1 Schematic diagram of the rear view in the middle;

[0032] Figure 6 For the present invention Figure 5 Schematic diagram of the middle limit groove structure;

[0033] Figure 7 For the present invention Figure 1 Schematic diagram of the driving rod in the middle;

[0034] Figure 8 Schematic diagram of the chain plate storage box in the present invention;

[0035] Figure 9 For the present invention Figure 8 Schematic diagram of the top material unit in the middle;

[0036] Figure 10 For the present invention Figure 9 Schematic diagram of the partial split in the middle;

[0037] Figure 11 The present invention Figure 10 Schematic diagram of the enlarged structure at position A in the middle;

[0038] Figure 12 The present invention Figure 1 Schematic diagram of the cross-section of the material bin in the middle;

[0039] Figure 13 Schematic diagram of the chain plate part of the present invention.

[0040] In the figure: 1. Chain plate storage box; 2. Chain plate conveying unit; 21. Mounting frame; 22. First worm; 23. Limiting plate; 24. Chain plate pushing plate; 25. Moving groove; 26. Sixth spiral groove; 27. First buffer spring; 28. First slide block nut; 29. Rotating rod; 210. First worm gear; 211. Fifth spiral groove; 3. Chain plate positioning unit; 31. Power cylinder; 32. Support; 33. Pressing rod; 34. Second buffer spring; 35. Arc-shaped limiting plate; 36. Column; 37. Limiting baffle; 4. Pin bar installation unit; 41. Driving column; 42. Third spiral groove; 43. Fourth spiral groove; 44. Limiting groove; 45. Extrusion rod; 46. Transmission gear; 5. Pin bar feeding unit; 51. Bin; 52. Second worm gear; 53. Driving rod; 54. Second worm; 55. First spiral groove; 56. Second spiral groove; 57. Driving gear; 58. Material receiving groove; 59. Feeding channel; 510. Rotating column; 6. Support plate; 7. Material ejecting unit; 71. Driving rack; 72. Limiting column; 73. Second slide block nut; 74. Limiting slide bar; 75. Lifting block; 76. Hollow column; 77. Reciprocating screw rod; 78. Hollow gear; 79. Ring; 710. Ratchet; 711. Limiting vertical plate; 712. Return spring; 713. Pawl; 8. Snap ring. Specific implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Example: Refer to Figure 1-7 and Figure 12 As shown in a chain plate automatic assembly device, which includes a pin bar feeding unit 5, a chain plate conveying unit 2, a chain plate positioning unit 3 and a pin bar installation unit 4;

[0043] The link plate conveying unit 2 includes a mounting frame 21 on which two limiting plates 23 are provided, a rotating rod 29 and a limiting rod mounted on the mounting frame 21. At the bottom of the opposite ends of the two limiting plates 23, limiting steps are provided. The rotating rod 29 and the limiting rod are respectively fixedly connected to the moving groove 25 through a first slider nut 28 and a sliding sleeve. A spiral groove adapted to the first slider nut 28 is provided on the rotating rod 29. A link plate pushing plate 24 is slidably arranged in the inner cavity of the moving groove 25, and the side end of the link plate pushing plate 24 is connected to the inner cavity of the moving groove 25 through a first buffer spring 27. The upper end of the link plate pushing plate 24 penetrates through a moving opening provided on the mounting frame 21. The rotating rod 29 is meshed and connected to a first worm 22 rotatably arranged on the mounting frame 21 through a first worm gear 210 provided thereon. A spiral groove is provided on the first worm 22. The pin bar feeding unit 5 includes a feed bin 51 with an opening and closing plate, a rotating column 510 installed at the feeding port of the feed bin 51 and having a loading groove provided thereon, a receiving groove 58 installed on the limiting plate 23, and a driving rod 53 rotatably arranged on the limiting plate 23. On the rotating shaft of the rotating column 510, a second worm gear 52 and a driving gear 57 are respectively installed. The driving rod 53 includes a rod body with a spiral groove and a second worm 54 meshed and connected to the driving gear 57. The receiving groove 58 is connected to the feed bin 51 through a feeding channel 59. The link plate positioning unit 3 includes a bracket 32 fixed on the two limiting plates 23. A power cylinder 31 is installed on the bracket 32. Below the movable end of the power cylinder 31, an arc-shaped limiting plate 35 is provided. And a limiting baffle 37 is fixed at one lower end of the arc-shaped limiting plate 35. A column 36 whose upper end is slidably inserted into the movable end is fixed at the upper end of the arc-shaped limiting plate 35. A second buffer spring 34 is connected between the arc-shaped limiting plate 35 and the movable end. Two pressing rods 33 are fixed on the outer wall of the movable end, and the outer ends of the two pressing rods 33 are respectively slidably arranged in the spiral grooves provided on the first worm 22 and the rod body. The pin bar installation unit 4 includes a limiting groove 44 provided on the limiting plate 23 and connected to the receiving groove 58, and a driving column 41 rotatably arranged on the limiting plate 23 and meshed and connected to the driving gear 57 through a transmission gear 46. A spiral groove is provided on the driving column 41. An extrusion rod 45 is slidably arranged in the limiting groove 44, and one end of the extrusion rod 45 is slidably arranged in the cavity of the spiral groove. Before the device is used, a material plate can be placed in the area position opposite to the link plate pushing plate 24 on the mounting frame 21 by using a link plate feeding device (such as a manipulator) or manual feeding. The pin bars have been manually placed in the feed bin 51. During operation, the power cylinder 31 is controlled to move downward. The two pressing rods 33 on the power cylinder 31 perform a pressing movement to drive the driving rod 53 and the first worm 22 to simultaneously perform a rotational movement. The driving rod 53 drives the rotating column 10 to rotate through the cooperation of the second worm 54 and the second worm gear 52, so that the pin bars in the feed bin 51 enter the loading groove and are conveyed to the receiving groove 58. At the same time, the rotating column 510 cooperates with the transmission gear 46 and the driving gear to drive the driving column 41 to rotate.The extrusion rod 45 moves under the drive of the driving column 41, and the first worm 22 cooperates with the first worm gear 210 to drive the rotating rod 29 to rotate, and cooperates with the first slider nut 28 to drive the chain plate push plate 24 to push the chain plate to move. At the same time, the power cylinder 31 will drive the arc limit plate 35 to move downward, and each step is carried out simultaneously. When the chain plate is conveyed to the chain plate previously placed under the arc limit plate 35 under the push of the chain plate push plate 24, the chain plate will contact the limit baffle 37 set at the lower end of the arc limit plate 35 to form a block, which can prevent the movement of the chain plate. The arc limit plate 35 continues to move downward to align the two connected chain plates. Before that The rotating column 510 has transported the pin to the material receiving groove 58, and the power cylinder 31 continues to move downward. At this time, the chain plate push plate 24 and the arc-shaped limit plate 35 will compress the first buffer spring 27 and the second buffer spring 34 respectively. At the same time, the extrusion rod 45 will contact the pin and press it into the mounting hole of the chain plate. After the operation is completed, the power cylinder 31 will drive the various components to return to their original positions and prepare for the assembly of the next wheel. This device uses the power cylinder to link the various components, and each component moves simultaneously to assemble the chain plate. This avoids the need for the control device to receive and transmit instructions to the components multiple times during assembly, reducing assembly time and improving work efficiency.

[0044] It should be noted that, first, the pin feeding unit 5 can also be set as a vibration plate, but the vibration generated during operation is large and the cost is high; second, it is not necessary to place a chain plate below the arc-shaped limit plate 35 before the chain plate pusher loads the material; third, the power cylinder 31 is electrically connected to the control device; third, the limit step can limit the chain plate, and the two ends of the chain plate can move to the limit cavity formed by the limit step and the mounting frame 21 to ensure the stability of the chain plate; fourth, the upper end of the chain plate pusher is inserted into the gap between the two chain plates when pushing the material.

[0045] As a preferred implementation in this embodiment, Figure 7 As shown, the spiral groove on the driving rod 53 includes a first spiral groove 55 and a second spiral groove 56 that are connected to each other. The distance between the two adjacent grooves in the first spiral groove 55 is greater than the distance between the two grooves in the second spiral groove 56. When the lower pressing rod 33 just moves from the first spiral groove 55 to the second spiral groove 56 (at this time the extrusion rod 45 just contacts the pin in the receiving groove 58), due to the denser spacing of the spiral grooves, the driving rod 53 will accelerate the rotation, which can make the driving column 41 rotate rapidly, and the rapidly rotating driving column 41 will drive the extrusion rod 45 to move rapidly, so that the extrusion rod 45 can quickly press the pin into the mounting hole of the chain plate, which can further improve work efficiency.

[0046] In this embodiment, if Figure 1As shown, the spiral grooves on the driving column 41 include the mutually connected third spiral groove 42 and fourth spiral groove 43. The distance between adjacent grooves in the third spiral groove 42 is smaller than the distance between two grooves on the fourth spiral groove 43. When the extrusion rod 45 just moves from the third spiral groove to the fourth spiral groove 43 (at this time, the extrusion rod 43 just contacts the end of the pin strip), due to the increase in the spacing of the spiral grooves, the movement speed of the extrusion rod 45 can be further increased, the assembly of the pin strip can be further accelerated, and the working efficiency can be further improved.

[0047] As a preferred implementation manner in this embodiment, as Figure 8 shown, a chain plate storage box 1 is fixed on the mounting frame 21. Feeding openings and discharging openings are respectively arranged at the front and rear ends of the chain plate storage box 1. A support plate 6 is fixed on the end of the chain plate push plate 24. When using the chain plate push plate 24 to complete the docking of two chain plates, at this time, the lower end surface of the chain plate that is vertically stacked in the chain plate storage box 1 and is located at the bottom contacts the upper end surface of the support plate 6. And when the chain plate push plate 24 subsequently moves to compress the first buffer spring 27, the support plate 6 still contacts the lower end of the chain plate. When the power cylinder 31 drives the chain plate push plate 24 to quickly return to its original position, the stacked chain plates can automatically fall, and finally the lower end of the lowermost chain plate contacts the upper end of the mounting frame 21. When the chain plate push plate 24 feeds the material, the lowermost chain plate can be pushed out from the discharging opening for assembly. Repeating this process can form a continuous assembly. During this assembly process, the operator can continuously add chain plates and pin strips to the chain plate storage box 1 and the feed bin 51. There is no need for a chain plate feeding device to feed the material. Removing the chain plate feeding device can reduce the cost of this device and can perform uninterrupted assembly operations.

[0048] It should be noted that a triangular reinforcing block is installed between the lower end of the support plate 6 and the side end of the chain plate push plate 24, which can enhance the structural strength of the chain plate push plate 24 and the support plate 6.

[0049] As a preferred implementation manner in this embodiment, as Figure 3As shown, the spiral groove of the rotating rod 29 includes a fifth spiral groove 211 and a sixth spiral groove 26 that are connected to each other. The distance between adjacent grooves in the fifth spiral groove 211 is less than the distance between two grooves on the sixth spiral groove 26. The cooperation between the sixth spiral groove 26 and the first slider nut 28 can drive the chain plate push plate 24 to perform a rapid feeding movement (rapid movement, which can ensure the stability of the chain plate when the chain plate push plate 24 separates from the stacked chain plates, and is beneficial for the chain plates to fall stably onto the mounting frame 21). When the two chain plates are docked, at this time the first slider nut 28 just moves onto the fifth spiral groove 211. Due to the smaller spacing of the spiral grooves, it will cause the first slider nut 28 to drive the chain plate push plate 24 to slowly compress the first buffer spring 27, which can avoid damage to the arc-shaped limiting plate 24 and the chain plate push plate 24 due to excessive extrusion force, and at the same time reduce the driving force required for the power cylinder 31 to drive all components to perform the assembly operation simultaneously. That is, a power cylinder with a smaller thrust can complete the assembly of the pin strip. Generally speaking, when the driving force of the power cylinder is small, its price is relatively cheap, which also plays a role in reducing costs.

[0050] It should be noted that using the rapid movement of the chain plate push plate 24 to ensure the stability of the chain plate makes the stacked chain plates maintain good stability when contacting and separating from the chain plate push plate 24. Since after the chain plate push plate 24 contacts and separates, the stacked chain plates will move freely downward for a certain distance. When the distance between adjacent stacked chain plates (that is, the distance between the upper end of the lower chain plate and the lower end of the upper chain plate) is small, the time for the stacked chain plates to move freely is short and the collision force is small (between the chain plates and between the chain plates and the mounting frame 21). The stacked chain plates can be supported by the upper end of the mounting frame 21 and remain in their original state. When the distance is large, the collision force is large, and it is difficult for the stacked chain plates to remain in their original state, which is likely to affect the feeding of the subsequent chain plate push plate 24 and even affect the service life of the device. However, the structure of this device is simple and the cost is low.

[0051] As a preferred implementation in this embodiment, as Figure As shown in the figure, it further includes a blanking unit 7 disposed below the chain plate storage box 1. The blanking unit 7 includes two limit columns 72 mounted on the mounting frame 21, and a driving rack 71 mounted at the lower end of the moving groove 25. A limit slide bar 74 is slidably disposed between the two limit columns 72, and the limit slide bar 74 is fixed to the second slide block nut 73. The second slide block nut 73 is mounted on a reciprocating screw rod 77 fixedly connected to the mounting frame 21. A hollow column 76 is fixed to the upper end of the second slide block nut 73. The hollow column 76 is inserted into the reciprocating screw rod 77. A lifting block 75 is fixed to the upper end of the hollow column 76. An opening adapted to the lifting block 75 is formed on the chain plate push plate 24. A hollow gear 78 meshed with the driving rack 71 is rotatably disposed on the reciprocating screw rod 77. A ratchet wheel 710 is fixed to the inner wall of the hollow gear 78. The hollow gear 78 is rotatably connected to the reciprocating screw rod 77. A ring 79 is fixedly sleeved on the reciprocating screw rod 77. A ratchet pawl 713 is rotatably disposed on the ring 79. The ratchet pawl 713 is connected to the ring 79 through a return spring 712. A limit vertical plate 711 is fixed to the ring 79. During use, when the moving groove 25 moves to the right, it drives the driving rack 71 to move. Since the driving rack 71 is engaged with the rotatably disposed hollow gear 78 and a one-way ratchet pawl structure is adopted, when the driving rack 71 moves to the right, the ratchet pawl 713 cannot block the rotation of the hollow gear 78, that is, the hollow gear 78 rotates relative to the reciprocating screw rod 77. When the driving rack 71 moves to the left, the limit vertical plate 711 blocks the ratchet pawl 713, and the ratchet pawl 713 blocks the ratchet wheel 710, enabling the hollow gear 78 to drive the reciprocating screw rod 77 to rotate under the action of the driving rack 71. Through the action of the second slide block nut 73, the lifting block 75 can move upward through the opening and form a support with the bottom of the stacked chain plates and drive them to move upward. After moving to the highest point, the lifting block 75 moves downward and returns to its original position, enabling the stacked chain plates to be stably placed on the mounting frame 21. During the downward movement, the lower end of the stacked chain plates does not contact the upper end of the chain plate push plate 24. By adopting this blanking unit 7, no matter how large the distance between two adjacent stacked chain plates is, the chain plates can be stably placed on the mounting frame 21, avoiding collisions and instability. Compared with using the density of spiral grooves to control the placement of chain plates, this blanking unit 7 has a higher manufacturing cost.

[0052] As a preferred implementation manner in this embodiment, not shown in the figure, universal balls are densely arranged on the upper ends of the support plate 6 and the chain plate push plate 24, which can reduce the friction force between the upper ends of the chain plate push plate 24 and the support plate 6 and the bottom of the chain plate, facilitating the movement of the support plate 6 and the chain plate push plate 24.

[0053] As a preferred implementation manner in this embodiment, which is not shown in the figure, a strip-shaped mounting groove extending in the same direction as the receiving groove 58 is provided at the bottom of the inner cavity of the receiving groove 58, and a magnetic strip is fixed in the inner cavity of the strip-shaped mounting groove. The magnetic strip can magnetically adsorb and fix the pin strip, which can make the pin strip moving into the receiving groove 58 fast and stable, and is beneficial to accurately press the pin strip into the mounting hole of the chain plate through the pressing rod 45.

[0054] Refer to 9-11 Figure 13 A chain plate part as shown, the chain plate part includes a chain plate and a pin strip. A snap ring 8 with an opening is arranged in the mounting hole of the chain plate, and an annular groove adapted to the snap ring 8 is arranged on the pin strip. The chain plate and the pin strip are installed by interference fit, which can make the pin strip after assembly no longer need to insert a limit pin for limiting, further simplifying the assembly steps.

[0055] It should be noted that generally, holes are formed at the ends of the pin strips in the prior art and limit pins are inserted for limiting.

[0056] It should be noted that the length of the pin strip is the distance between the two limit plates 23, so that when stamping and assembling with the pressing rod 45, one end of the pin strip can contact the side end of the limit plate 23 (a buffer pad can be arranged at the side end for collision buffering, avoiding rigid contact of components to cause damage, and at the same time reducing collision noise), preventing over-stamping or separation of the annular groove and the snap ring 8 due to the action of movement inertia.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chain plate automatic assembly device, characterized by: It comprises a pin bar feeding unit (5), a chain plate conveying unit (2), a chain plate positioning unit (3) and a pin bar installation unit (4); The chain plate conveying unit (2) includes a mounting frame (21) on which two limit plates (23) are arranged, a rotating rod (29) and a limit rod installed on the mounting frame (21), and the bottom of the two limit plates (23) are provided with limit steps at opposite ends. The rotating rod (29) and the limit rod are fixedly connected to the moving groove (25) through a first slider nut (28) and a sliding sleeve respectively. The rotating rod (29) is provided with a spiral groove adapted to the first slider nut (28). The moving A chain plate push plate (24) is slidably provided in the inner cavity of the groove (25), and the side end of the chain plate push plate (24) is connected to the inner cavity of the movable groove (25) via a first buffer spring (27). The upper end of the chain plate push plate (24) passes through the mounting frame (21) and is provided with a movable opening. The rotating rod (29) is meshed and connected with a first worm (22) rotatably provided on the mounting frame (21) through a first worm wheel (210) provided thereon, and the first worm (22) is provided with a spiral groove. The pin strip feeding unit (5) comprises a hopper (51) with an opening and closing plate, a rotating column (510) installed at a discharge port of the hopper (51) and having a loading groove formed thereon, a material receiving groove (58) installed on the limit plate (23), and a driving rod (53) rotatably arranged on the limit plate (23), a second worm gear (52) and a driving gear (57) are respectively installed on the rotating shaft of the rotating column (510), the driving rod (53) comprises a rod body with a spiral groove and a second worm gear (54) meshingly connected to the driving gear (57), and the material receiving groove (58) is connected to the hopper (51) through a discharge channel (59); The chain plate positioning unit (3) includes a bracket (32) fixed on two limit plates (23), a power cylinder (31) is installed on the bracket (32), an arc-shaped limit plate (35) is provided below the movable end of the power cylinder (31), and a limit baffle (37) is fixed at a lower end of the arc-shaped limit plate (35), and a column (36) is fixed at the upper end of the arc-shaped limit plate (35) whose upper end is slidably plugged with the movable end, the arc-shaped limit plate (35) and the movable end are connected via a second buffer spring (34), two lower pressure rods (33) are fixed on the outer wall of the movable end, and the outer ends of the two lower pressure rods (33) are respectively slidably provided in the spiral grooves provided on the first worm (22) and the rod body; The pin strip installation unit (4) comprises a limiting groove (44) provided on the limiting plate (23) and connected to the material receiving groove (58), and a driving column (41) rotatably provided on the limiting plate (23) and meshingly connected to the driving gear (57) via a transmission gear (46), wherein the driving column (41) is provided with a spiral groove, and an extrusion rod (45) is slidably provided in the limiting groove (44), and one end of the extrusion rod (45) is slidably provided in the groove cavity of the spiral groove.

2. The automatic chain plate assembly device according to claim 1, characterized in that: The spiral groove on the driving rod (53) comprises a first spiral groove (55) and a second spiral groove (56) connected to each other, and the distance between two adjacent grooves in the first spiral groove (55) is greater than the distance between two grooves in the second spiral groove (56).

3. The automatic chain plate assembly device according to claim 2, characterized in that: The spiral groove on the driving column (41) comprises a third spiral groove (42) and a fourth spiral groove (43) connected to each other, and the distance between two adjacent grooves in the third spiral groove (42) is smaller than the distance between two grooves in the fourth spiral groove (43).

4. The automatic chain plate assembly device according to claim 1, characterized in that: A chain plate storage box (1) is fixed on the mounting frame (21), and a feeding opening and a discharging opening are respectively provided at the front and rear ends of the chain plate storage box (1), and a support plate (6) is fixed on the end of the chain plate push plate (24).

5. The automatic chain plate assembly device according to claim 4, characterized in that: The spiral groove of the rotating rod (29) comprises a fifth spiral groove (211) and a sixth spiral groove (26) connected to each other, and the distance between two adjacent grooves in the fifth spiral groove (211) is smaller than the distance between two grooves in the sixth spiral groove (26).

6. The automatic chain plate assembly device according to claim 4, characterized in that: The chain plate storage box (1) further includes a material ejecting unit (7) provided below the chain plate storage box (1), the material ejecting unit (7) including two limiting columns (72) installed on the mounting frame (21), a driving gear rod (71) installed at the lower end of the movable groove (25), a limiting slide bar (74) slidingly provided between the two limiting columns (72), and the limiting slide bar (74) is fixed on a second slider nut (73), the second slider nut (73) is installed on a reciprocating screw (77) fixedly connected to the mounting frame (21), a hollow column (76) is fixed on the upper end of the second slider nut (73), the hollow column (76) is plugged into the reciprocating screw (77), and the hollow column (76) A lifting block (75) is fixed to the upper end of the chain plate push plate (24), an opening adapted to the lifting block (75) is opened on the chain plate push plate (24), a hollow gear (78) meshingly connected to the driving gear rod (71) is rotatably provided on the reciprocating screw (77), a ratchet (710) is fixed on the inner wall of the hollow gear (78), the hollow gear (78) is rotatably connected to the reciprocating screw (77), a circular ring (79) is fixedly provided on the reciprocating screw (77), a pawl (713) is rotatably provided on the circular ring (79), the pawl (713) is connected to the circular ring (79) through a reset spring (712), and a limiting vertical plate (711) is fixed on the circular ring (79).

7. The automatic chain plate assembly device according to claim 4, characterized in that: The upper ends of the support plate (6) and the chain plate push plate (24) are densely covered with universal balls.

8. The automatic chain plate assembly device according to claim 1, characterized in that: The bottom of the inner cavity of the material receiving groove (58) is provided with a strip-shaped installation groove in the same extension direction as the material receiving groove (58), and a magnetic strip is fixed to the inner cavity of the strip-shaped installation groove.

9. A chain plate member, used in the chain plate automatic assembly device according to any one of claims 1 to 8, characterized in that: The chain plate member comprises a chain plate and a pin bar, a snap ring (8) with an opening is provided in the mounting hole of the chain plate, and an annular groove adapted to the snap ring (8) is provided on the pin bar.

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