Pressing device with dust cover and speed chain

Abstract

The application relates to a chain processing device, in particular to a press-fitting device and press-fitting method of a multiple-speed chain with a dustproof cover. The press-fitting device comprises a workbench, a mounting module, a press-fitting module, a top cover module and a driving module. The mounting module comprises a lower module and a positioning needle. The lower module is provided with a press-fitting station, and the positioning needle is vertically arranged on the press-fitting station. The number of the positioning needles on each press-fitting station is two. The press-fitting module comprises an upper module, and the upper module is provided with a press-fitting head. The top cover module comprises a top needle, and the top needle corresponds to the press-fitting station one by one and is located between the two positioning needles. The driving module comprises a press-fitting driving mechanism and a top cover driving mechanism. The press-fitting device can deform one end of the dustproof cover in the chain plate press-fitting process, leaves space for the press-fitting of the chain plate, considers the press-fitting operation of the dustproof cover and the chain plate, and guarantees the smooth assembly of the inner chain link of the multiple-speed chain.

Description

Technical Field

[0001] This invention relates to a chain processing equipment, and more particularly to a pressing device and pressing method for a high-speed chain with a dust cover. Background Technology

[0002] Multi-speed chains are a type of conveyor chain mainly used for material conveying. They are widely used in production lines in industries such as electronics, electrical appliances, and electromechanical engineering. They have a speed-increasing function, enabling tooling plates supporting goods to move quickly.

[0003] A multiplier chain consists of inner links, outer plates, and pins. The inner links are connected to each other via pins and outer plates, such as... Figures 1-3 As shown, the inner link includes two chain plates 11, two sleeves 12, and two sets of rollers 13. The rollers 13 typically include large rollers and small rollers. The diameter of the large rollers is larger than the width of the chain plates 11, and the diameter of the small rollers is smaller than the width of the chain plates 11. The large rollers are used to contact the carrying platform and support the material to be conveyed, while the small rollers are used to cooperate with the sprockets for drive. Figures 1-3 The diagram shows the structure of the inner link of a multi-link chain. In order to reduce the impact of impurities in the environment on the chain and improve the service life of the multi-link chain, the inner link also includes a dust cover 14. The dust cover 14 can effectively shield the large roller and the small roller to prevent foreign objects from entering.

[0004] Chinese utility model patent CN 216784663U discloses a conveyor chain with dustproof function, which includes at least rollers, outer chain plates, inner chain plates, sleeves, and pins, and also includes dust covers. The dust covers are disposed in the gap between every two adjacent rollers, and the dust covers include dust covers for the outer chain plates and dust covers for the inner chain plates. The inner chain links in the above-mentioned conveyor chain have the same structure as the inner chain links of the press-fit multiple chain in this application.

[0005] like Figures 1-3 As shown, the dust cover 14 of the multi-chain has hook-shaped buckles 16 at both ends. The inner chain link is placed between the two buckles 16 of the dust cover 14 and is engaged. Between the two buckles 16 is the cover body 15, which includes a middle cover corresponding to the large roller and a side cover corresponding to the small roller. The middle cover is embedded between the two large rollers to provide comprehensive protection for the large rollers.

[0006] Because the chain plate 11 and sleeve 12 require interference fit, and the chain plate 11 and dust cover 14 are connected by snap-fit ​​16, the pressing direction of the chain plate 11 and sleeve 12 is perpendicular to the installation direction of the dust cover 14. Furthermore, before pressing the chain plate 11, the roller 13 needs to be fitted in, and the middle cover needs to be embedded between the two large rollers. There is a certain contradiction between the installation of the dust cover 14 and the pressing of the chain plate 11. If the dust cover 14 is embedded between the two large rollers first, the end of the dust cover 14 will obstruct the pressing of the chain plate 11. If the pressing of the chain plate 11 is completed first, there is insufficient space for the dust cover 14 to be embedded between the two rollers 13.

[0007] In view of the special structure of the aforementioned multi-speed chains and the difficulties in the assembly process, this application provides a pressing device and pressing method for multi-speed chains with dust covers, which realizes the pressing of inner links in multi-speed chains, and takes into account both the installation of dust covers and the pressing of chain plates. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a pressing device and pressing method for a high-speed chain with a dust cover. During the pressing process of the chain plate, one end of the dust cover can be deformed by pressing, leaving space for the pressing of the chain plate. This takes into account both the installation of the dust cover and the pressing operation of the chain plate, and ensures the smooth assembly of the inner links in the high-speed chain.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pressing device with a dust cover and a double-speed chain, comprising at least:

[0010] Workbench;

[0011] The installation module includes a lower module and positioning pins. The lower module is set on the workbench. The lower module is provided with at least one pressing station. The positioning pins are vertically set at the pressing station, and there are two positioning pins at each pressing station.

[0012] The pressing module includes an upper module, which is equipped with a pressing head; the pressing head corresponds one-to-one with the pressing station and is positioned vertically opposite each other.

[0013] The top cover module includes ejector pins, which are horizontally arranged on one side of the lower module; each ejector pin corresponds to a pressing station and is located between two positioning pins.

[0014] The drive module includes a press-fit drive mechanism and a top cover drive mechanism. The press-fit drive mechanism is used to drive the upper module to move up and down, and the top cover drive mechanism is used for the axial movement of the ejector pin.

[0015] Before pressing, a single chain plate and two sleeves are selected from each set of internal link components and pressed together to form a plate-and-tube assembly. During pressing, the individual chain plate from each set of internal link components is first inserted into the positioning pin through the pin hole. Then, the roller, dust cover, and plate-and-tube assembly are installed in the pressing station, with the roller fitted over the sleeve and the sleeve fitted over the positioning pin. The upper end of the dust cover is connected to the chain plate on the plate-and-tube assembly. Finally, the drive module drives the ejector pin to move horizontally, pressing and deforming the lower end of the dust cover until it is horizontally misaligned with the corresponding chain plate. The drive module then drives the upper module to move downwards until the pressing head contacts the plate-and-tube assembly and applies pressure. The sleeve moves downwards to press with the corresponding chain plate. After the pressing operation is completed, the drive module resets, the pressure applied to the dust cover by the ejector pin is removed, the lower end of the dust cover resets, and it connects with the corresponding chain plate, completing the pressing operation.

[0016] The roller can be fitted with positioning pins on individual chain plates, followed by the positioning pins, and finally the dust cover and plate cylinder assembly. Alternatively, the roller can be fitted together with the positioning pins as a whole after the dust cover and plate cylinder assembly are in place.

[0017] The pressing equipment of this application can deform one end of the dust cover during the pressing process of the chain plate, leaving space for the pressing of the chain plate, thus taking into account both the installation of the dust cover and the pressing operation of the chain plate, and ensuring the smooth assembly of the inner links in the multiple chain.

[0018] Preferably, the pressing station has a lower pressure-bearing surface, and the lower pressure-bearing surface has an outcrop groove, with the positioning pin disposed within the outcrop groove. The outcrop groove provides sufficient space for the pressing of the sleeve, preventing interference between the lower end of the sleeve and the lower module.

[0019] Preferably, the positioning pin includes a pin body and a press-fit elastic element, the lower module is provided with a mounting hole, the pin body is slidably disposed in the mounting hole, and the press-fit elastic element is disposed between the pin body and the lower module.

[0020] Preferably, the needle body includes a first segment and a second segment along the axial direction from top to bottom, the diameter of the first segment being smaller than that of the second segment; under normal conditions, the second segment extends out of the protrusion groove.

[0021] The first segment corresponds to the sleeve, with its diameter matching the sleeve's inner diameter; the second segment corresponds to the chain plate, with its diameter matching the chain plate's pin hole. During press-fitting, the first segment positions the sleeve, and the second segment positions the chain plate. The pin hole and sleeve are forcibly aligned by the needle body, ensuring smooth press-fitting. During press-fitting, the sleeve presses against the second segment, and the needle body moves axially against the elastic force of the press-fitting elastic element. This ensures successful press-fitting while preventing the second segment from enlarging the sleeve's hole, thus guaranteeing molding quality.

[0022] Preferably, the upper surface of the lower module is provided with an ejector channel, which corresponds one-to-one with the pressing station and is located between two ejector pins. The ejector channel extends horizontally through the lower module. The dust cover is aligned with the ejector channel, which provides sufficient space for the pressing and deformation movement of the dust cover.

[0023] Preferably, the pressing head is provided with two pressing bosses, which are disconnected from each other. The two pressing bosses correspond one-to-one with the two sleeves, and the disconnection position between the two pressing bosses is aligned with the dust cover.

[0024] Preferably, the top cover module further includes a guide block, which is disposed on the worktable and located on one side of the lower module. The ejector pin is axially slidably connected to the guide block. The guide block supports and guides the ejector pin, ensuring smooth operation of the top cover.

[0025] Preferably, the top cover module further includes a top cover slider and an inclined insert. The top cover slider is horizontally slidably mounted on the worktable. The inclined insert is fixedly connected to the upper module and extends downward. The top cover slider is located below the inclined insert. The lower end of the inclined insert has an insertion surface, which is inclined towards the lower module.

[0026] The press-fitting drive mechanism and the top cover drive mechanism include the same drive component, which is used to drive the upper module to move up and down.

[0027] The angled insert connects to the upper module and moves up and down synchronously with it. Furthermore, the insertion surface converts the angled insert's vertical movement into the horizontal movement of the top cover slider, which in turn drives the ejector pin to complete the top cover operation. Using the same drive unit to drive both the pressing and top cover operations ensures stable timing for both actions. Only by properly setting the dimensions of the angled insert and ejector pin can the smooth and orderly completion of both actions be guaranteed.

[0028] Preferably, the top cover driving mechanism further includes a reset unit, and the top cover slider is connected to the reset unit; under normal conditions, the ejector pin and the lower module are misaligned.

[0029] After the pressing operation is completed, the reset unit drives the top cover slider and ejector pin to reset, leaving enough space for the reset of the dust cover and the separation of the inner link and the positioning pin.

[0030] A pressing method for a double-speed chain with a dust cover, using the pressing equipment described above;

[0031] At least the following steps are included:

[0032] S1. Pre-assembly: Select the corresponding number of internal link components according to the number of press-fitting stations. Each set of internal link components includes two chain plates, two sleeves and two sets of rollers. Select a single chain plate and two sleeves from each set of internal link components and press-fit them to form a plate-tube assembly.

[0033] S2. Installation: Install the unpressed chain plates from each set of inner link accessories into the pressing station, where the pin holes on the chain plates are fitted with positioning pins; install the rollers, dust covers and plate cylinder assemblies into the pressing station, where the rollers are fitted over the sleeves, the sleeves are fitted with positioning pins, and the upper end of the dust cover is connected to the chain plates on the plate cylinder assemblies.

[0034] S3. Pressing: The drive module drives the ejector pin to move horizontally and presses down on the lower end of the dust cover until the lower end is deformed and horizontally misaligned with the corresponding chain plate;

[0035] The drive module drives the upper module to move downwards until the pressing head contacts the plate and cylinder assembly and applies pressure to the plate and cylinder assembly. The sleeve moves downwards and presses against the corresponding chain plate. The drive module resets, the pressure applied to the dust cover by the ejector pin is removed, the lower end of the dust cover resets and connects with the corresponding chain plate, completing the pressing operation. Attached Figure Description

[0036] Figure 1 A schematic diagram of a high-speed chain with a dust cover;

[0037] Figure 2 An exploded view of a double-speed chain with a dust cover;

[0038] Figure 3 A cross-sectional view of a double-speed chain with a dust cover;

[0039] Figure 4 This is a schematic diagram of the pressing equipment with a dust cover and a double-speed chain in this embodiment;

[0040] Figure 5 This is a schematic diagram of the pressing equipment with a dust cover and a double-speed chain in this embodiment from another perspective.

[0041] Figure 6 This is a side view of the press-fitting equipment with a dust cover and a double-speed chain in this embodiment;

[0042] Figure 7 This is a schematic diagram of the installation module in the press-fitting equipment with a dust cover and a double-speed chain in this embodiment;

[0043] Figure 8 This is a schematic diagram of the needle body in the press-fitting equipment with a dust cover and a double-speed chain in this embodiment;

[0044] Figure 9This is a schematic diagram of the structure of the top cover module and the top cover drive mechanism in the press-fitting equipment with a dust cover and a double-speed chain in this embodiment.

[0045] Figure 10 This is a schematic diagram of the plate and cylinder assembly in step S1 of the press-fitting method for the double-speed chain with a dust cover in this embodiment;

[0046] Figure 11 This is a schematic diagram of the inner chain link being installed in the pressing station in the pressing method of the double-speed chain with dust cover in this embodiment;

[0047] Figure 12 This is a structural diagram of the pressing step in the pressing method of the double speed chain with dust cover in this embodiment. At this time, the lower end buckle of the dust cover is deformed by the ejector pin.

[0048] Figure 13 This is a schematic diagram of the completed pressing state of the pressing method for the double-speed chain with dust cover in this embodiment. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 merely illustrative and not intended to limit the invention. Example

[0050] like Figures 4-6 As shown, a pressing device with a dust cover and a double-speed chain includes a workbench 4, an installation module, a pressing module, a top cover module, and a drive module.

[0051] like Figures 4-7 As shown, the installation module includes a lower module 5 and a positioning pin 8. The lower module 5 is mounted on the workbench 4. The lower module 5 has at least one pressing station, and the pressing station has a lower pressure bearing surface. The lower pressure bearing surface has an outcrop groove 52, and the positioning pin 8 is disposed in the outcrop groove 52.

[0052] Each pressing station corresponds to the installation of one inner link 1. A single inner link 1 can be processed, or multiple links can be processed simultaneously. The lower bearing surface is used to position the chain plate and bear the load during the pressing process. The protruding groove 52 provides sufficient space for the pressing of the sleeve, preventing interference between the lower end of the sleeve and the lower module 5.

[0053] like Figure 7As shown, the positioning pins 8 are vertically arranged at the pressing stations, with two positioning pins 8 at each pressing station. Specifically, the positioning pin 8 includes a pin body 81 and a pressing elastic element 82. The lower module 5 has a mounting hole, the pin body 81 is slidably disposed within the mounting hole, and the pressing elastic element 82 is disposed between the pin body 81 and the lower module 5. Figure 8 As shown, the needle body 81 includes a first segment 811 and a second segment 812 along the axial direction from top to bottom. The diameter of the first segment 811 is smaller than that of the second segment 812. Under normal conditions, the second segment 812 extends out of the protrusion groove 52.

[0054] The first segment 811 corresponds to the sleeve 12, and its diameter matches the inner diameter of the sleeve; the second segment 812 corresponds to the chain plate 11, and its diameter matches the pin hole of the chain plate. During press-fitting, the first segment 811 is used to position the sleeve, and the second segment 812 is used to position the chain plate. The pin hole and the sleeve are forcibly aligned by the needle body 81, thus ensuring smooth press-fitting. During the press-fitting process, the sleeve presses against the second segment 812, and the needle body 81 moves axially against the elastic force of the press-fitting elastic element 82. While ensuring the completion of press-fitting, it can also prevent the second segment 812 from causing hole enlargement in the sleeve, ensuring the forming quality.

[0055] like Figures 4-6 As shown, the pressing module includes an upper module 3, which is equipped with a pressing head 2. Each pressing head 2 corresponds to a pressing station and is positioned vertically opposite to the other. Specifically, each pressing head 2 has two pressing bosses, which are disconnected from each other. Each pressing boss corresponds to one of two sleeves, and the disconnected position between the two pressing bosses is aligned with the dust cover.

[0056] like Figure 6 and Figure 9 As shown, the top cover module includes ejector pins 72, which are horizontally positioned on one side of the lower module 5. Each ejector pin 72 corresponds to a pressing station and is located between two positioning pins 8. Specifically, the top cover module also includes a guide block 71, which is mounted on the worktable 4 and located on one side of the lower module 5. The ejector pins 72 are axially slidably connected to the guide block 71. The guide block 71 provides support and guidance for the ejector pins 72, ensuring smooth top cover operation.

[0057] Furthermore, such as Figure 7 As shown, the upper surface of the lower module 5 is provided with an ejection channel 51. The ejection channel 51 corresponds one-to-one with the pressing station and is located between two ejector pins 72. The ejection channel 51 is set horizontally through the lower module 5. The dust cover is aligned with the ejection channel 51, and the ejection channel 51 can provide sufficient space for the pressing and deformation movement of the dust cover.

[0058] like Figures 4-6 As shown, the drive module includes a press-fit drive mechanism and a top cover drive mechanism. The press-fit drive mechanism is used to drive the upper module 3 to move up and down, and the top cover drive mechanism is used to drive the ejector pin 72 to move axially.

[0059] like Figure 6 and Figure 9 As shown, in one specific embodiment, the top cover module further includes a top cover slider 61 and an inclined insert 62. The top cover slider 61 is horizontally slidably mounted on the worktable 4. The inclined insert 62 is fixedly connected to the upper module 3 and extends downwards, with the top cover slider 61 located below the inclined insert 62. The lower end of the inclined insert 62 has an insertion surface 63, which is inclined towards the lower module 5. The press-fitting drive mechanism and the top cover drive mechanism include the same drive component, which is used to drive the upper module 3 to move up and down.

[0060] The angled insert 62 connects to the upper module 3 and moves up and down synchronously with the upper module 3. Furthermore, the insertion surface converts the up-and-down movement of the angled insert 62 into the horizontal movement of the top cover slider 61, thereby driving the ejector pin 72 to complete the top cover operation. Using the same drive unit to drive both the pressing and top cover operations ensures stable timing for both actions. Only by properly setting the dimensions of the angled insert 62 and the ejector pin 72 can the smooth and orderly completion of both actions be guaranteed.

[0061] like Figure 6 and Figure 9 As shown, the top cover slider 61 has a roller 64 at the end opposite to the lower module 5. The roller 64 corresponds to the insertion surface 63. When the inclined insert 62 moves downward, the insertion surface 63 contacts the roller 64 and rolls relative to it, thereby pushing the top cover slider 61 to translate. By setting the roller 64, the friction between the inclined insert 62 and the top cover slider 61 can be reduced, making the translation drive of the top cover slider 61 smoother, and also reducing the wear of the inclined insert 62 and the top cover slider 61.

[0062] Specifically, the top cover driving mechanism also includes a reset unit (not shown in the figure), and the top cover slider 61 is connected to the reset unit. Normally, the ejector pin 72 is misaligned with the lower module 5. The reset unit includes a top cover elastic element. After the pressing operation is completed, the reset unit drives the top cover slider 61 and ejector pin 72 to reset, providing sufficient space for the reset of the dust cover and the separation of the inner link 1 from the positioning pin 8.

[0063] Before pressing, a single chain plate 11 and two sleeves 12 are selected from each set of inner link 1 components and pressed together to form a plate-tube assembly. During pressing, the individual chain plate 12 from each set of inner link 1 components is first inserted into the positioning pin 8 through the pin hole. Then, the roller 12, dust cover 14, and plate-tube assembly are installed in the pressing station, with the roller 13 fitted over the sleeve 12, and the sleeve 12 fitted into the positioning pin 8. The upper end of the dust cover 14 is connected to the chain plate 11 on the plate-tube assembly. Finally, the drive module drives the ejector pin 72 to move horizontally and presses and deforms the lower end of the dust cover 14 until it is horizontally misaligned with the corresponding chain plate 11. The drive module then drives the upper module 3 to move downward until the pressing head 2 contacts the plate-tube assembly and applies pressure to it. The sleeve 12 moves downward to press with the corresponding chain plate 11. After the pressing operation is completed, the drive module is reset, the pressure applied by the ejector pin 72 to the dust cover 14 is removed, the lower end of the dust cover 14 is reset and connected to the corresponding chain plate 11, thus completing the pressing operation.

[0064] The roller can be fitted with positioning pins 8 on individual chain plates, followed by the positioning pins 8 sequentially, and finally the dust cover and plate cylinder assembly. Alternatively, the roller can be fitted together with the positioning pins 8 as a whole after the dust cover and plate cylinder assembly are assembled.

[0065] The pressing equipment of this application can press and deform one end of the dust cover during the pressing process of the chain plate, leaving space for the pressing of the chain plate, taking into account both the installation of the dust cover and the pressing operation of the chain plate, and ensuring the smooth assembly of the inner link 1 in the multiple chain.

[0066] A pressing method for a double-speed chain with a dust cover, using the pressing equipment described above;

[0067] At least the following steps are included:

[0068] S1. Pre-assembly: Based on the number of press-fitting stations, select the corresponding number of inner link 1 components. Each set of inner link 1 components includes two chain plates 11, two bushings 12, and two sets of rollers 13. Select one chain plate 11 and two bushings 12 from each set of inner link 1 components, and press-fit them to form a plate-tube assembly, such as... Figure 10 The image shows a plate-cylinder assembly.

[0069] S2. Installation: Install the unpressed chain plate 11 from each set of inner chain link 1 components into the pressing station. The pin hole on the chain plate 11 is fitted with the positioning pin 8, and the pin hole matches the second segment 812 of the pin body 81. Install the roller 13, dust cover 14, and plate / tube assembly into the pressing station. The roller 13 is fitted over the sleeve 12, and the sleeve 12 is fitted with the positioning pin 8. The upper end of the dust cover 14 connects to the chain plate 11 on the plate / tube assembly. The inner hole of the sleeve 12 matches the first segment 811 of the positioning pin 8, and the lower end of the sleeve 12 abuts against the end of the second segment 812. The pin hole and sleeve 12 are forcibly aligned by the pin body 81. That is... Figure 11 The state shown.

[0070] S3. Pressing: The drive module works, the upper module 3 moves downward, and the inclined insert 62 moves downward synchronously. The inclined insert 62 first contacts the top cover slider 61 and drives the ejector pin 72 to move horizontally. The ejector pin 72 contacts the dust cover 14 and presses and deforms the lower end of the dust cover 14 until the lower end is horizontally misaligned with the corresponding chain plate 11.

[0071] The upper module 3 continues to move downwards until the pressing head 2 contacts the plate-cylinder assembly. The pressing head 2 applies pressure to the plate-cylinder assembly, and the sleeve 12 moves downwards to press against the corresponding chain plate 11. During the downward movement of the sleeve 11, the positioning pin 8 squeezes the pressing elastic element 82, and the pressing elastic element 82 moves downwards, leaving space for the pressing of the sleeve 12 against the chain plate 11. That is... Figure 12 The state shown.

[0072] The drive module resets, the upper module 3 moves upward, the pressing head 2 and the inclined insert 62 move upward synchronously, the ejector pin 72 retracts under the drive of the reset unit, the pressure applied by the ejector pin 72 on the dust cover 14 is removed, the lower end of the dust cover 14 resets, and the buckle 16 at the lower end of the dust cover 14 engages with the outside of the chain plate 11, realizing the engagement between the lower chain plate 11 and the dust cover 14, completing all pressing operations. During the upward movement of the upper module 3, the pressing elastic element 82 drives the positioning pin 8 to move upward, and lifts the pressed inner chain link 1. That is... Figure 13 The state shown.

[0073] S4. Unloading: Unload the inner link 1 upwards from the positioning pin 8.

[0074] In summary, 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 within the protection scope of the present invention.

Claims

1. A press mounting apparatus with a dust cover speed chain, characterized by, At least including: Workbench; The installation module includes a lower module and positioning pins. The lower module is set on the workbench. The lower module is provided with at least one pressing station. The positioning pins are vertically set at the pressing station, and there are two positioning pins at each pressing station. The pressing module includes an upper module, which is equipped with a pressing head; the pressing head corresponds one-to-one with the pressing station and is positioned vertically opposite each other. The top cover module includes ejector pins, which are horizontally arranged on one side of the lower module; each ejector pin corresponds to a pressing station and is located between two positioning pins. The driving module includes a press-fitting driving mechanism and a top cover driving mechanism. The press-fitting driving mechanism is used to drive the upper module to move up and down, and the top cover driving mechanism is used for the axial movement of the ejector pin. The positioning needle includes a needle body and a press-fit elastic element. The lower module is provided with a mounting hole. The needle body is slidably disposed in the mounting hole. The press-fit elastic element is disposed between the needle body and the lower module. The top cover module also includes a top cover slider and an inclined insert. The top cover slider is horizontally slidably mounted on the worktable. The inclined insert is fixedly connected to the upper module and extends downward. The top cover slider is located below the inclined insert. The lower end of the inclined insert has an insertion surface, which is inclined towards the lower module. The press-fitting drive mechanism and the top cover drive mechanism include the same drive component, which is used to drive the upper module to move up and down.

2. The press device of claim 1, wherein: The pressing station is provided with a lower pressure bearing surface, and the lower pressure bearing surface is provided with an exposed groove, and the positioning pin is set in the exposed groove.

3. The press device of claim 1, wherein: The needle body comprises a first segment and a second segment along the axial direction from top to bottom. The diameter of the first segment is smaller than that of the second segment. Under normal conditions, the second segment extends out of the protrusion groove.

4. The press device of claim 1, wherein: The upper surface of the lower module is provided with an ejection channel, which corresponds one-to-one with the pressing station and is located between two ejector pins. The ejection channel is set to penetrate the lower module in a horizontal direction.

5. The press device of claim 1, wherein: The pressing head is provided with two pressing bosses, which are disconnected from each other.

6. The press device of claim 1, wherein: The top cover module also includes a guide block, which is set on the worktable and located on one side of the lower module. The ejector pin is axially slidably connected to the guide block.

7. The press device of claim 1, wherein: The top cover driving mechanism also includes a reset unit, and the top cover slider is connected to the reset unit; under normal conditions, the ejector pin and the lower module are misaligned.

8. A press-mounting method of a dust cover-equipped speed chain, characterized by, The pressing equipment as described in any one of claims 1-7 is used; At least the following steps are included: S1. Pre-assembly: Select the corresponding number of internal link components according to the number of press-fitting stations. Each set of internal link components includes two chain plates, two sleeves and two sets of rollers. Select a single chain plate and two sleeves from each set of internal link components and press-fit them to form a plate-tube assembly. S2. Installation: Install the unpressed chain plates from each set of inner link accessories into the pressing station, where the pin holes on the chain plates are fitted with positioning pins; install the rollers, dust covers and plate cylinder assemblies into the pressing station, where the rollers are fitted over the sleeves, the sleeves are fitted with positioning pins, and the upper end of the dust cover is connected to the chain plates on the plate cylinder assemblies. S3. Pressing: The drive module drives the ejector pin to move horizontally and presses and deforms the lower end of the dust cover until the lower end is horizontally misaligned with the corresponding chain plate; The drive module drives the upper module to move downward until the pressing head contacts the plate and cylinder assembly and applies pressure to the plate and cylinder assembly. The sleeve moves downward and presses against the corresponding chain plate. The drive module is reset, the pressure applied to the dust cover by the ejector pin is removed, the lower end of the dust cover is reset and connected to the corresponding chain plate, completing the press-fit operation.

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