Riveting device for roller chain production

Abstract

The utility model relates to the technical field of chain production, and provides a roller chain production riveting device which comprises a guide wheel used for guiding a roller chain to enter a riveting channel, the guide wheel comprises a rotary shell, and an adjusting mechanism is arranged in the rotary shell; the adjusting mechanism comprises a rotating disc, a plurality of driving connecting rods surround the periphery of the rotating disc in an array mode, pushing blocks are arranged at the other ends of the driving connecting rods, the two ends of the driving connecting rods are hinged to the rotating disc and the pushing blocks respectively, and guide sliding grooves are formed in the bottoms of the pushing blocks and matched with guide rails fixed to the rotating shell. Adjusting teeth are fixed to the pushing block, penetrate through the side wall of the rotary shell and can penetrate into a gap between every two adjacent rollers of the roller chain. The guide wheel has the beneficial effects that the pitch of the guide wheel can be changed by utilizing the adjusting mechanism, so that the production requirements of roller chains with different specifications and different pitches can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of chain production, specifically to a riveting device for roller chain production. Background Technology

[0002] A roller chain is a type of chain used to transmit mechanical power. It plays a very important role in industrial and agricultural machinery. In the production process of roller chains, pins and outer chain plates need to be riveted together. During riveting, the roller chain to be riveted is conveyed to the designated position and then the riveting head is used to complete the process. Due to the characteristics of the roller chain's own structure, a sprocket-like structure is generally used to guide it to the designated riveting position.

[0003] However, roller chains come in many different models due to varying load-bearing requirements, and the pitch between rollers in different models also differs. The larger the pitch, the larger the size of each component, and the higher the load-bearing capacity. This means that different specifications of roller chains require guide wheels with different tooth pitches. For a roller chain production line, if the guide wheel size is fixed when producing roller chains of different specifications, it cannot adapt to multiple roller chain models, thus requiring the replacement of different guide wheels. This greatly reduces the flexibility of the entire production process. Utility Model Content

[0004] This utility model proposes a riveting device for roller chain production, which can change the tooth pitch of the guide wheel by adjusting the mechanism, thereby adapting to the production needs of roller chains of different specifications and pitches.

[0005] Therefore, the technical solution adopted is as follows:

[0006] A riveting device for producing roller chains includes a work platform with a guide wheel horizontally arranged on the platform for guiding the roller chain into a riveting channel. The guide wheel includes a rotating housing rotatably connected to the work platform, and the rotating housing has an adjustment mechanism inside. The adjustment mechanism includes a rotating disk horizontally arranged and rotatably connected to the rotating housing. The rotating housing and the rotating disk are driven to rotate and locked by a driving device. Several driving links are arrayed around the rotating disk. The other end of each driving link has a push block. The two ends of the driving links are hinged to the rotating disk and the push block, respectively. The bottom of the push block has a guide groove and is matched with a guide rail fixed to the rotating housing. The guide rail is arranged along the center of the rotating disk towards the outside of the rotating housing. An adjustment tooth is fixed on the push block. The adjustment tooth passes through the side wall of the rotating housing and can enter the gap between each pair of adjacent rollers of the roller chain.

[0007] A further technical solution includes a riveting unit, which comprises a press and a riveting head, the riveting head being located above the riveting channel.

[0008] A further technical solution is that there is a reinforcing block identical to the pushing block between every two pushing blocks and a matching guide rail. A connecting rod is passed through the reinforcing block and the adjacent pushing block. The connecting rod is perpendicular to the length direction of the guide rail and can be slidably connected to both the reinforcing block and the pushing block.

[0009] A further technical solution is that a pushing groove matching the shape of the contact part is provided on the side of the adjusting tooth that contacts the roller.

[0010] A further technical solution includes a positioning mechanism, which includes a telescopic device. The riveting channel is formed by a fixed sidewall and a movable sidewall perpendicular to the working platform. The fixed sidewall is fixed on the working platform, and the movable sidewall is fixedly connected to the telescopic end of the telescopic device. The telescopic device is located on the side where the movable sidewall is located and can drive the movable sidewall to approach or move away from the fixed sidewall.

[0011] A further technical solution is that the positioning mechanism also includes a second telescopic device located on the side where the movable sidewall is located and moving in the same direction as the telescopic device. A positioning channel is provided on the movable sidewall, and a positioning block is slidably connected inside the positioning channel. The positioning block is fixedly connected to the telescopic end of the second telescopic device.

[0012] A further technical solution is that an adjustment base is fixed to the bottom of the guide wheel, and the adjustment base is connected to the working platform through a displacement mechanism. The displacement mechanism includes a guide block fixed to the adjustment base and a guide rail that matches the guide block.

[0013] The working principle and beneficial effects of this application are as follows:

[0014] 1. By adjusting the extension length of each adjusting tooth through the adjustment mechanism, the tooth pitch of the guide wheel can be changed, thereby adapting to different roller chain specifications and avoiding roller chain jamming, skipping teeth or positioning deviation caused by mismatched tooth pitch. This improves the compatibility of the entire riveting process. At the same time, the same riveting equipment can quickly switch to produce roller chains with different pitches, reducing changeover time and special tooling costs.

[0015] 2. With adjustable teeth that can adjust the extension length at any time, when some riveting processes require the chain to be pre-tensioned, the meshing state of the roller chain and the guide wheel can be temporarily changed to meet the requirements. When the roller chain is slightly deformed, it can also be temporarily remedied by adjusting the extension length of the adjustable teeth, reducing downtime, enhancing process flexibility, eliminating the need to equip a dedicated guide wheel for each situation, reducing spare parts management costs, and making the operation faster than replacing the entire guide wheel, thus reducing maintenance time.

[0016] 3. The distance between the fixed sidewall and the movable sidewall is adjusted by the positioning mechanism, which is the width of the riveting channel. This allows the system to accommodate different sizes of roller chain plates, ensuring that the roller chain is fast and stable throughout the entire transmission process and accurately positioned at the riveting position for riveting.

[0017] 4. By using the telescopic device 2 to drive the positioning block, when the roller chain reaches the riveting position, the chain link to be riveted can be pressed against the fixed side wall to prevent it from shifting laterally or vibrating vertically during the conveying process. This ensures that the riveting position is always aligned with the mold and that the chain link will not shift due to the force generated during riveting. During continuous riveting, the positioning block can be calibrated section by section to prevent the pitch error of the entire roller chain from being superimposed due to the deviation of a single section, thereby improving the efficiency and quality of riveting. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a top view of the structure of this application;

[0020] Figure 2 This is a schematic diagram of the main view structure of this application;

[0021] Figure 3 This is a schematic diagram of the guide wheel described in this application;

[0022] Figure 4 This is a schematic diagram of the internal structure of the guide wheel described in this application;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism described in this application;

[0024] Figure 6 This is a schematic diagram of the positioning mechanism described in this application.

[0025] In the diagram: 100, working platform; 200, roller chain; 3, riveting channel; 1, guide wheel; 11, rotating shell; 12, rotating disk; 13, drive linkage; 14, push block; 15, guide rail; 16, adjusting gear; 2, riveting unit; 21, press; 22, riveting joint; 141, reinforcing block; 142, connecting rod; 161, pushing groove; 4, positioning mechanism; 41, telescopic device one; 31, fixed side wall; 32, movable side wall; 42, telescopic device two; 43, positioning block; 300, adjusting base; 5, displacement mechanism; 51, guide slider; 52, guide rail. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] like Figures 1-6 As shown, a roller chain production riveting device includes a work platform 100. A guide wheel 1 is horizontally arranged on the work platform 100 to guide the roller chain 200 into the riveting channel 3. The guide wheel 1 includes a rotating housing 11 rotatably connected to the work platform 100. During operation, a drive device drives the rotating housing 11 to rotate, causing the entire guide wheel 1 to rotate and drive the roller chain 200 to be conveyed in a specified direction. The drive device adopts a servo motor, which has high operating accuracy and accurate positioning, and is suitable for automated production lines of roller chains 200.

[0028] like Figures 3-5 As shown, the rotating housing 11 has an adjustment mechanism inside. The adjustment mechanism includes a horizontally arranged rotating disk 12 that is rotatably connected to the rotating housing 11. The rotating disk 12 is also driven to rotate and locked by a drive device. Several drive linkages 13 are arranged around the rotating disk 12. The other end of the drive linkage 13 has a push block 14. The two ends of the drive linkage 13 are respectively hinged to the rotating disk 12 and the push block 14. The bottom of the push block 14 is provided with a guide groove and matched with a guide rail 15 fixed to the rotating housing 11. The guide rail 15 is arranged along the center of the rotating disk 12 towards the outside of the rotating housing 11. An adjustment tooth 16 is fixed on the push block 14. The adjustment tooth 16 passes through the side wall of the rotating housing 11 and can pass into the gap between each two adjacent rollers of the roller chain 200.

[0029] In this embodiment, the rotation of the rotating disk 12 drives the drive linkage 13 to rotate accordingly. Since the two ends of the drive linkage 13 are hinged to the rotating disk 12 and the push block 14 respectively, when the rotating disk 12 rotates by a corresponding angle, the drive linkage 13 will drive the push block 14 to move along the guide rail 15. The specific direction and distance of movement are determined according to the rotation direction and angle of the rotating disk 12. As a result, the adjusting teeth 16 on the push block 14 will move along the guide rail 15 with the push block 14. This is because the adjusting teeth 16 pass through the side wall of the rotating housing 11 and into the roller chain 20. The roller chain 200 is moved by the gap between each pair of adjacent rollers. Therefore, the adjusting teeth 16 can change the length of the adjusting teeth 16 that passes through the rotating housing 11 as the pushing block 14 moves, thereby changing the distance between each pair of adjacent adjusting teeth 16. When the distance of the adjusting teeth 16 can change according to the requirements, it can adapt to different specifications of roller chains 200 and play a guiding role, improving the compatibility of the entire riveting device. The same riveting device can quickly switch to produce roller chains 200 with different pitches, reducing changeover time and special tooling costs.

[0030] like Figure 5 As shown, considering that the adjustment mechanism requires a certain amount of space to operate, this limits the number of adjustment mechanisms surrounding the outer edge of the rotating disk 12, that is, limits the number of adjustment teeth 16. When the pitch of the roller chain 200 is relatively small, it is necessary to ensure that the density of the adjustment teeth 16 is large enough, that is, that the number is large enough to meet the guiding requirements. Therefore, in another embodiment of this application, there is a reinforcing block 141 identical to the pushing block 14 between every two pushing blocks 14 and a guide rail 15 is matched. A connecting rod 142 is passed between the reinforcing block 141 and the adjacent pushing block 14. The connecting rod 142 is perpendicular to the length direction of the guide rail 15 and can be slidably connected to both the reinforcing block 141 and the pushing block 14.

[0031] This embodiment adds a new adjusting tooth 16 and a guide rail 15 without adding an adjustment mechanism. The push block 14 and the reinforcing block 141 are connected by a connecting rod 142. Since the connecting rod 142 is perpendicular to the length direction of the guide rail 15 and can be slidably connected to both the reinforcing block 141 and the push block 14, the reinforcing block 141 will move synchronously with the push block 14. This ensures that the adjusting tooth 16 added to the reinforcing block 141 can effectively do work. Without adding an adjustment mechanism, the number of adjusting teeth 16 is increased, which can accommodate more specifications of roller chains 200 for guiding.

[0032] like Figure 4 As shown, the side of the adjusting tooth 16 that contacts the roller chain 200 is provided with a pushing groove 161 that matches the shape of the contact part, so as to increase the contact area and increase the curvature to increase the force of the adjusting tooth 16 on the roller chain 200.

[0033] like Figure 2 As shown, the riveting unit 2 used in this embodiment includes a press 21 and a riveting head 22. The riveting head 22 is located above the riveting channel 3. In the production process of the roller chain 200, the prepared steel strips are first cut into the required chain plate shape by a punch press, and two mounting holes are punched on the chain plate. Then, the chain plate with the mounting holes punched is quenched to increase the strength of the chain plate. After quenching, the chain plate is cooled by an oil tank and cleaned to remove residual oil stains. It is then collected and waited to be fed into the assembly system for assembly.

[0034] The bushings that match the mounting holes are also made of steel strips cut to the appropriate length and wound around the mandrel. They also need to be quenched to increase strength. The pins are made of steel strips cut to the required size and formed into a specific diameter through grinding and other operations. Then, the surface residue is washed away with lubricant and other agents to make the surface smooth. During assembly, the inner chain plate, bushing and the middle roller are first combined and pressed together by the press 21 to form a single chain link. Then, one end of the pin is inserted into the outer chain plate and pressed by the press 21. The sleeve is then put on the pin. Then, the other end of the pin is put on the outer chain plate on the other side. Finally, the alignment and riveting are performed by the riveting joint 22 of the riveting unit 2. Finally, the roller chain 200 as a whole is lubricated again and inspected by quality inspection equipment.

[0035] It is important to note that the pressure of the press 21 should be controlled during the riveting process to prevent the riveting from being too tight, which would prevent the chain links from rotating effectively. This would increase the resistance of the roller chain 200 during operation, increase the power consumption of the drive, accelerate the wear of the roller chain 200, and reduce transmission efficiency, noise, and vibration.

[0036] like Figure 6 As shown, another embodiment of the application further includes a positioning mechanism 4, which includes a telescopic device 41. The riveting channel 3 is formed by a fixed side wall 31 and a movable side wall 32 perpendicular to the working platform 100. The fixed side wall 31 is fixed on the working platform 100, and the movable side wall 32 is fixedly connected to the telescopic end of the telescopic device 41. The telescopic device 41 is located on the side where the movable side wall 32 is located and can drive the movable side wall 32 to approach or move away from the fixed side wall 31.

[0037] The positioning mechanism 4 also includes a second telescopic device 42 located on the side of the movable sidewall 32 and moving in the same direction as the first telescopic device 41. The movable sidewall 32 is provided with a positioning channel, and a positioning block 43 is slidably connected inside the positioning channel. The positioning block 43 is fixedly connected to the telescopic end of the second telescopic device 42.

[0038] Telescopic device 1 41 moves the movable sidewall 32, changing the distance of the remaining fixed sidewalls 31, i.e., the width of the riveting channel 3. This allows it to work with the guide wheel 1 to further adapt to different specifications of roller chain 200 chain plate widths, ensuring the roller chain 200 is fast and stable throughout the entire conveying process and accurately positioned to the riveting position for riveting. Telescopic device 2 42 moves the positioning block 43 along the positioning channel, which, when the roller chain 200 reaches the riveting position, presses the chain link to be riveted against the fixed sidewall 31, preventing lateral shift or vertical vibration during conveying. This ensures the riveting position is always aligned with the mold, preventing the chain link from shifting due to the force generated during riveting. During continuous riveting, the positioning block 43 can be calibrated section by section, preventing the cumulative pitch error of the entire roller chain 200 due to deviation in a single section, thus improving the efficiency and quality of riveting. Both telescopic device 1 41 and telescopic device 2 42 use telescopic cylinders.

[0039] like Figure 1 As shown, an adjusting base 300 is fixed to the bottom of the guide wheel 1. The adjusting base 300 is connected to the work platform 100 via a displacement mechanism 5. The displacement mechanism 5 includes a guide slider 51 fixed to the adjusting base 300 and a guide rail 52 matching the guide slider 51. The displacement mechanism 5 can change the position of the adjusting base 300 on the worktable, so that while the guide wheel 1 can adjust the tooth pitch 16, the contact guiding position between the guide wheel 1 and the roller chain 200 can also be changed by changing the position of the adjusting base 300. This allows the two to achieve optimal transmission efficiency, and combined with the working frequency of the riveting joint 22, it also improves the overall efficiency of the riveting process.

[0040] In addition to the guide wheel 1, the bottom of the positioning mechanism 4 also has an adjustment base 300 connected to the working platform 100 via the displacement mechanism 5. The adjustment base 300 can increase the adaptability and flexibility of the various components of the riveting device.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A riveting device for producing a roller chain, comprising a work platform (100), a guide wheel (1) horizontally arranged on the work platform (100) for guiding a roller chain (200) into a riveting channel (3), characterized in that: The guide wheel (1) comprises a rotating shell (11) rotatably connected with the working platform (100), and the rotating shell (11) is internally provided with an adjusting mechanism; The adjusting mechanism comprises a rotating disc (12) horizontally arranged and rotatably connected with the rotating shell (11), the rotating shell (11) and the rotating disc (12) are respectively driven to rotate and locked by a driving device, a plurality of driving connecting rods (13) are arranged around the rotating disc (12), the other end of the driving connecting rod (13) is provided with a pushing block (14), the two ends of the driving connecting rod (13) are respectively hinged with the rotating disc (12) and the pushing block (14), the bottom of the pushing block (14) is provided with a guide sliding groove and is matched with a guide rail (15) fixed with the rotating shell (11), the guide rail (15) is arranged along the center of the rotating disc (12) and is arranged towards the outside of the rotating shell (11), the adjusting tooth (16) is fixed on the pushing block (14), and the adjusting tooth (16) penetrates through the side wall of the rotating shell (11) and can penetrate into the gap between every two adjacent rollers of the roller chain (200).

2. A roll chain riveting device according to claim 1, wherein Further comprising a riveting unit (2), the riveting unit (2) comprises a press (21) and a riveting head (22), and the riveting head (22) is located above the riveting channel (3).

3. The roll chain riveting apparatus according to claim 1, wherein There is a reinforcing block (141) same as the pushing block (14) between every two pushing blocks (14) and matched with the guide rail (15), a connecting rod (142) is arranged between the reinforcing block (141) and the pushing block (14) adjacent to the reinforcing block (141), the connecting rod (142) is perpendicular to the length direction of the guide rail (15) and is slidably connected with the reinforcing block (141) and the pushing block (14).

4. The roll chain production riveting device according to claim 1, wherein The side of the adjusting tooth (16) in contact with the roller is provided with a pushing groove (161) matched with the shape of the contact part.

5. The roll chain production riveting device according to claim 1, wherein Further comprising a positioning mechanism (4), the positioning mechanism (4) comprises a telescopic device one (41), the riveting channel (3) is surrounded by a fixed side wall (31) and a movable side wall (32) perpendicular to the working platform (100), the fixed side wall (31) is fixed on the working platform (100), the movable side wall (32) is fixedly connected with the telescopic end of the telescopic device one (41), the telescopic device one (41) is located on one side of the movable side wall (32) and can drive the movable side wall (32) to approach or move away from the fixed side wall (31).

6. A roll chain riveting device according to claim 5, wherein The positioning mechanism (4) further comprises a telescopic device two (42) located on one side of the movable side wall (32) and moving in the same direction as the telescopic device one (41), the movable side wall (32) is provided with a positioning channel, and the positioning channel is slidably connected with a positioning block (43) inside, and the positioning block (43) is fixedly connected with the telescopic end of the telescopic device two (42).

7. The roll chain production riveting device according to claim 1, wherein The bottom of the guide wheel (1) is fixed with an adjusting base (300), the adjusting base (300) is connected with a working platform (100) through a displacement mechanism (5), and the displacement mechanism (5) comprises a guide sliding block (51) fixed with the adjusting base (300) and a guide sliding rail (52) matched with the guide sliding block (51).

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