Press fitting tool for speed chain with dustproof cover

Abstract

The utility model relates to chain machining equipment, and particularly discloses a press fitting tool for a speed multiplication chain with a dustproof cover. The press-fitting tool comprises an installation module, a press-fitting module and a top cover module, the installation module comprises a lower module and positioning needles, the lower module is provided with at least one press-fitting station, the positioning needles are vertically arranged on the press-fitting stations, and 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 ejector pins, the ejector pins are horizontally arranged on one side of the lower module, and the ejector pins are in one-to-one correspondence with the press-fitting stations and located between the two positioning pins. According to the press-fitting tool, one end of the dustproof cover can be pressed and deformed in the press-fitting process of the chain plate, a space is reserved for press-fitting of the chain plate, loading of the dustproof cover and press-fitting operation of the chain plate are both considered, and smooth assembly of inner chain links in the multiple chain is guaranteed.

Description

Technical Field

[0001] The utility model relates to a chain processing device, in particular to a press-fitting tooling for a double-speed chain with a dust cover. Background Technique

[0002] The multiple-chain is a conveying chain mainly used for material conveying, widely applied to production lines in industries such as electronic appliances and electromechanics, and has a speed-increasing function, enabling the tooling plate carrying goods thereon to run quickly.

[0003] The multiple-chain includes inner chain links, outer chain plates and pins. The inner chain links are connected by pins and outer chain plates. As Figures 1 - 3 shown, the inner chain link includes two chain plates 11, two sleeves 12 and two groups of rollers 13. The rollers 13 usually include large rollers and small rollers. The diameter of the large rollers is greater than the width of the chain plate 11, and the diameter of the small rollers is less than the width of the chain plate 11. The large rollers are used to contact the bearing platform and support the materials to be conveyed, and the small rollers are used to cooperate with the sprocket for driving. As Figures 1 - 3 shown, it is a structural schematic diagram of the inner chain link of the multiple-chain. In order to reduce the influence of impurities in the environment on the chain and improve the service life of the multiple-chain, the inner chain link also includes a dust cover 14. The dust cover 14 can play a good role in shielding the large rollers and small rollers and prevent sundries from entering.

[0004] The Chinese utility model patent with the authorization announcement number of CN 216784663U discloses a conveying chain with a dust-proof function, which at least includes rollers, outer chain plates, inner chain plates, sleeves and pins, and also includes a dust cover. The dust cover is arranged at the gap between every two adjacent rollers, and the dust cover includes an outer chain plate dust cover and an inner chain plate dust cover. The inner chain link in the above-mentioned conveying chain has the same structure as the inner chain link of the multiple-chain pressed in this application.

[0005] As Figures 1 - 3 shown, both ends of the dust cover 14 of the multiple-chain are hook-shaped buckles 16 respectively. The inner chain link is placed between the two buckles 16 of the dust cover 14 and is snap-connected. Between the two buckles 16 is a cover body 15. The cover body 15 includes a middle cover corresponding to the large rollers and a side cover corresponding to the small rollers. The middle cover is embedded between the two large rollers to provide comprehensive shielding protection for the large rollers.

[0006] Since the chain plate 11 and the sleeve 12 need to be press-fitted with interference, the chain plate 11 and the dust cover 14 are snap-connected by the snap 16. The press-fitting direction of the chain plate 11 and the sleeve 12 is perpendicular to the installation direction of the dust cover 14. At the same time, the roller 13 needs to be sleeved before press-fitting the chain plate 11, and the middle cover needs to be embedded between two large rollers. There is a certain contradiction between the installation of the dust cover 14 and the press-fitting of the chain plate 11 in the two assembly steps. If the dust cover 14 is first embedded between two large rollers, the end of the dust cover 14 will hinder the press-fitting of the chain plate 11. If the press-fitting operation of the chain plate 11 is first completed, there is not enough space for the dust cover 14 to be embedded between the two rollers 13.

[0007] In view of the special structure of the above-mentioned multiple-chain and the difficulties in the above-mentioned assembly process, the present application provides a press-fitting device and a press-fitting method for a multiple-chain with a dust cover, which realizes the press-fitting of the inner link in the multiple-chain and takes into account the installation of the dust cover and the press-fitting operation of the chain plate. Summary of the Invention

[0008] The technical problem to be solved by the present utility model is to provide a press-fitting tooling for a multiple-chain with a dust cover, which can press and deform one end of the dust cover during the press-fitting process of the chain plate, leave space for the press-fitting of the chain plate, take into account the installation of the dust cover and the press-fitting operation of the chain plate, and ensure the smooth assembly of the inner link in the multiple-chain.

[0009] To solve the above technical problems, the technical solution provided by the present utility model is as follows: A press-fitting tooling for a multiple-chain with a dust cover, at least including:

[0010] An installation module, the installation module includes a lower module and positioning pins. At least one press-fitting station is provided on the lower module, and the positioning pins are vertically arranged at the press-fitting stations. The number of positioning pins at each press-fitting station is two;

[0011] A press-fitting module, the press-fitting module includes an upper module. The upper module is provided with a press-fitting head, and the press-fitting head corresponds to the press-fitting stations one by one and is arranged opposite up and down;

[0012] A top cover module, the top cover module includes a top pin. The top pin is horizontally arranged on one side of the lower module, and the top pin corresponds to the press-fitting stations one by one and is located between the two positioning pins.

[0013] Before the press-fitting operation, first select a single chain plate and two sleeves from each set of inner link fittings, and press-fit them to form a plate-sleeve combination. During the press-fitting, first pass the individual chain plates in each set of inner link fittings through the pin holes and onto the positioning pins. Subsequently, insert the rollers, dust covers, and the plate-sleeve combination into the press-fitting station. The rollers are sleeved outside the sleeves, and the sleeves are sleeved onto the positioning pins. The upper end of the dust cover is connected to the chain plate on the plate-sleeve combination. Finally, the externally provided driving module drives the ejector pin to move horizontally, and presses and deforms the lower end of the dust cover until the lower end is deformed and horizontally misaligned with the corresponding chain plate. Then, the externally provided driving module drives the upper module to move downward until the press-fitting head contacts the plate-sleeve combination and applies pressure to the plate-sleeve combination. The sleeve moves downward for press-fitting with the corresponding chain plate. After the press-fitting operation is completed, the externally provided driving module resets, the pressure applied by the ejector pin to the dust cover is removed, the lower end of the dust cover resets, and is connected to the corresponding chain plate, completing the press-fitting operation.

[0014] The rollers can be sleeved onto the positioning pins in sequence after the individual chain plates are sleeved onto the positioning pins, and finally the dust covers and the plate-sleeve combination are sleeved and fitted. The rollers can also be fitted with the positioning pins integrally after being fitted with the dust covers and the plate-sleeve combination.

[0015] Using the press-fitting tooling of the present application can press and deform one end of the dust cover during the press-fitting of the chain plate, leaving space for the press-fitting of the chain plate, taking into account both the installation of the dust cover and the press-fitting operation of the chain plate, and ensuring the smooth assembly of the inner links in the multiple-strand chain.

[0016] Preferably, the press-fitting station is provided with a lower bearing surface, and a protruding groove is provided on the lower bearing surface, and the positioning pin is arranged in the protruding groove. The provision of the protruding groove can leave sufficient space for the press-fitting of the sleeve, avoiding interference between the lower end of the sleeve and the lower module.

[0017] Preferably, the positioning pin includes a pin body and a press-fitting elastic member. An installation hole is provided on the lower module, the pin body is slidably arranged in the installation hole, and the press-fitting elastic member is arranged between the pin body and the lower module.

[0018] Preferably, the pin body includes a first section and a second section along the axial direction from top to bottom, and the diameter of the first section is smaller than that of the second section; in the normal state, the second section extends out of the protruding groove.

[0019] The first section corresponds to the sleeve, and the diameter matches the inner diameter of the sleeve; the second section corresponds to the chain plate, and the diameter corresponds to the pin hole of the chain plate. During press-fitting, the first section is used to position the sleeve, and the second section is used to position the chain plate. The pin hole and the sleeve are forced to be centered through the pin body, thus ensuring smooth press-fitting. During the press-fitting process, the sleeve squeezes the second section, and the pin body moves axially against the elastic force of the press-fitting elastic member. While ensuring the completion of press-fitting, it can prevent the second section from reaming the sleeve and ensure the forming quality.

[0020] Preferably, an ejection channel is provided on the upper surface of the lower module. The ejection channel corresponds to the press-fitting station one by one and is located between two ejector pins. The ejection channel runs through the lower module in the horizontal direction. The dust cover is aligned with the ejection channel, and the ejection channel can leave enough space for the pressing and deforming movement of the dust cover.

[0021] Preferably, two press-fitting bosses are provided on the press-fitting head, and there is a break between the two press-fitting bosses. The two press-fitting bosses correspond to the two sleeves one by one, and the break position between the two press-fitting bosses is aligned with the dust cover.

[0022] Preferably, the top cover module further includes a guide block. The guide block is located on one side of the lower module, and the ejector pin is slidably arranged on the guide block. The guide block plays a role in supporting and guiding the ejector pin to ensure the smooth progress of the top cover operation.

[0023] Preferably, the top cover module further includes a top cover slider and an inclined plug-in part. The top cover slider is horizontally slidably arranged. The inclined plug-in part is fixedly connected to the upper module and extends downward. The top cover slider is located below the inclined plug-in part; an insertion surface is provided at the lower end of the inclined plug-in part, and the insertion surface inclines towards the lower module.

[0024] The inclined plug-in part is connected to the upper module and moves up and down synchronously with the upper module. Further, the up and down movement of the inclined plug-in part is converted into the horizontal movement of the top cover slider through the insertion surface, and then the ejector pin is pushed to move to complete the top cover operation. By using the same driving part to drive the press-fitting operation and the top cover operation, the rhythm stability of the two actions can be ensured. Only by reasonably setting the specifications and dimensions of the inclined plug-in part and the ejector pin can the two actions be smoothly and orderly completed.

[0025] Preferably, a roller is provided at one end of the top cover slider facing away from the lower module, and the roller corresponds to the insertion surface.

[0026] When the inclined plug-in part moves downward, the insertion surface contacts the roller and rolls relative to it, thereby pushing the top cover slider to translate. By providing the roller, the friction between the inclined plug-in part and the top cover slider can be reduced, the translation drive of the top cover slider is smoother, and the wear of the inclined plug-in part and the top cover slider can also be reduced. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a double-speed chain with a dust cover;

[0028] Figure 2 is an exploded view of a double-speed chain with a dust cover;

[0029] Figure 3 is a cross-sectional view of a double-speed chain with a dust cover;

[0030] Figure 4 Schematic structural diagram of the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0031] Figure 5 Another perspective structural diagram of the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0032] Figure 6 Side view of the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0033] Figure 7 Schematic structural diagram of the installation module in the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0034] Figure 8 Schematic structural diagram of the needle body in the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0035] Figure 9 Schematic structural diagram of the cooperation between the top cover module and the top cover driving mechanism in the press-fitting device for the dust-proof cover-equipped double-speed chain in this embodiment;

[0036] Figure 10 Schematic structural diagram of the plate cylinder assembly in step S1 of the press-fitting method for the dust-proof cover-equipped double-speed chain in this embodiment;

[0037] Figure 11 Schematic structural diagram of the state where the inner link is loaded into the press-fitting station in the press-fitting method for the dust-proof cover-equipped double-speed chain in this embodiment;

[0038] Figure 12 Schematic structural diagram of the press-fitting step in the press-fitting method for the dust-proof cover-equipped double-speed chain in this embodiment, at this time the lower buckle of the dust-proof cover is deformed by the ejector pin;

[0039] Figure 13 Schematic structural diagram of the press-fitting completion state in the press-fitting method for the dust-proof cover-equipped double-speed chain in this embodiment. Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Embodiment

[0041] As Figures 4 - 6 shown, a press-fitting device for a double-speed chain with a dust-proof cover includes a workbench 4, a press-fitting tooling, and a driving module. The press-fitting tooling includes an installation module, a press-fitting module, and a top cover module.

[0042] As Figures 4 - 7As shown in the figure, the installation module includes a lower module 5 and positioning pins 8, and the lower module 5 is arranged on the workbench 4. At least one press-fitting station is provided on the lower module 5. A lower bearing surface is provided at the press-fitting station, and an exposed head groove 52 is provided on the lower bearing surface. The positioning pins 8 are arranged in the exposed head groove 52.

[0043] One inner link 1 is installed corresponding to each press-fitting station. Single inner link 1 can be selected for processing, or multiple inner links can be processed simultaneously. The lower bearing surface is used to position the chain plate and bear the load during the press-fitting process. The setting of the exposed head groove 52 can leave enough space for the press-fitting of the sleeve, avoiding interference between the lower end of the sleeve and the lower module 5.

[0044] As Figure 7 shown in the figure, the positioning pins 8 are vertically arranged at the press-fitting stations, and the number of positioning pins 8 at each press-fitting station is two. Specifically, the positioning pins 8 include a pin body 81 and a press-fitting elastic member 82. An installation hole is provided on the lower module 5, and the pin body 81 is slidably arranged in the installation hole. The press-fitting elastic member 82 is arranged between the pin body 81 and the lower module 5. As Figure 8 shown in the figure, the pin body 81 includes a first segment 811 and a second segment 812 from top to bottom along the axis. The diameter of the first segment 811 is smaller than that of the second segment 812. In the normal state, the second segment 812 extends out of the exposed head groove 52.

[0045] 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 corresponds to 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 forced to be centered through the pin body 81, thus ensuring smooth press-fitting. During the press-fitting process, the sleeve squeezes the second segment 812, and the pin body 81 moves axially against the elastic force of the press-fitting elastic member 82. While ensuring the completion of press-fitting, it can avoid the second segment 812 from reaming the sleeve and ensure the forming quality.

[0046] As Figures 4 - 6 shown in the figure, the press-fitting module includes an upper module 3, and a press-fitting head 2 is provided on the upper module 3. The press-fitting head 2 corresponds to the press-fitting stations one by one and is arranged opposite up and down. Specifically, two press-fitting bosses are provided on the press-fitting head 2, and a break is provided between the two press-fitting bosses. The two press-fitting bosses correspond to the two sleeves one by one, and the break position between the two press-fitting bosses is aligned with the dust cover.

[0047] As Figure 6 and Figure 9As shown in the figure, the top cover module includes ejector pins 72, and the ejector pins 72 are horizontally arranged on one side of the lower module 5. The ejector pins 72 correspond to the press-fitting stations one by one and are located between two positioning pins 8. Specifically, the top cover module further includes a guide block 71. The guide block 71 is arranged on the workbench 4 and is 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 plays a role in supporting and guiding the ejector pins 72 to ensure the smooth progress of the top cover operation.

[0048] Furthermore, as Figure 7 shown in the figure, the upper surface of the lower module 5 is provided with an ejection channel 51. The ejection channel 51 corresponds to the press-fitting stations one by one and is located between two ejector pins 72. The ejection channel 51 runs through the lower module 5 in the horizontal direction. The dust cover is aligned with the ejection channel 51, and the ejection channel 51 can leave enough space for the pressing and deforming movement of the dust cover.

[0049] As Figures 4 - 6 shown in the figure, the drive module includes a press-fitting drive mechanism and a top cover drive mechanism. The press-fitting 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 pins 72 to move axially.

[0050] As Figure 6 and Figure 9 shown in the figure, as a specific implementation manner, the top cover module further includes a top cover slider 61 and an inclined plug-in part 62. The top cover slider 61 is horizontally slidably arranged on the workbench 4. The inclined plug-in part 62 is fixedly connected to the upper module 3 and extends downward. The top cover slider 61 is located below the inclined plug-in part 62. The lower end of the inclined plug-in part 62 is provided with an insertion surface 63, and the insertion surface 63 inclines towards the lower module 5. The press-fitting drive mechanism and the top cover drive mechanism include the same driving part, and the driving part is used to drive the upper module 3 to move up and down.

[0051] The inclined plug-in part 62 is connected to the upper module 3 and moves up and down synchronously with the upper module 3. Further, the up and down movement of the inclined plug-in part 62 is converted into the horizontal movement of the top cover slider 61 through the insertion surface, and then the ejector pins 72 are pushed to move to complete the top cover operation. By using the same driving part to drive the press-fitting operation and the top cover operation, the rhythm stability of the two actions can be ensured. Only by reasonably setting the specifications and dimensions of the inclined plug-in part 62 and the ejector pins 72 can the two actions be smoothly and orderly completed.

[0052] As Figure 6 and [[ID=As shown, a roller 64 is provided at one end of the top cover slider 61 facing away from the lower module 5. The roller 64 corresponds to the insertion surface 63. When the inclined plug-in part 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 providing the roller 64, the friction between the inclined plug-in part 62 and the top cover slider 61 can be reduced, the translation drive of the top cover slider 61 is smoother, and the wear of the inclined plug-in part 62 and the top cover slider 61 can also be reduced.

[0053] Specifically, the top cover drive mechanism further includes a reset unit (not shown in the figure), and the top cover slider 61 is connected to the reset unit. Under normal conditions, the ejector pin 72 is arranged out of alignment with the lower module 5. The reset unit includes a top cover elastic member. After the press-fitting operation is completed, the reset unit drives the top cover slider 61 and the ejector pin 72 to reset, leaving enough space for the reset of the dust cover and the separation operation of the inner link 1 and the positioning pin 8.

[0054] Before the press-fitting operation, first select a single link plate 11 and two sleeves 12 from each set of inner link 1 fittings and press-fit them to form a plate-sleeve combination. During press-fitting, first, the individual link plates 12 in each set of inner link 1 fittings are sleeved onto the positioning pin 8 through the pin holes. Subsequently, the rollers 12, the dust cover 14, and the plate-sleeve combination are loaded into the press-fitting station. The roller 13 is sleeved outside the sleeve 12, and the sleeve 12 is sleeved onto the positioning pin 8. The upper end of the dust cover 14 is connected to the link plate 11 on the plate-sleeve combination. Finally, the drive module drives the ejector pin 72 to move horizontally, and the lower end of the dust cover 14 is pressed and deformed until the lower end is deformed to be horizontally misaligned with the corresponding link plate 11. The drive module drives the upper module 3 to move downward until the press-fitting head 2 contacts the plate-sleeve combination and applies pressure to the plate-sleeve combination, and the sleeve 12 moves downward for press-fitting with the corresponding link plate 11. After the press-fitting operation is completed, the drive module resets, 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 is connected to the corresponding link plate 11, and the press-fitting operation is completed.

[0055] The roller can be sleeved onto the positioning pin 8 in sequence after the separate link plate is sleeved onto the positioning pin 8, and finally the dust cover and the plate-sleeve combination are sleeved and matched. The roller can also be matched with the positioning pin 8 as a whole after being matched with the dust cover and the plate-sleeve combination.

[0056] Using the press-fitting equipment of the present application, one end of the dust cover can be pressed and deformed during the link plate press-fitting process, leaving space for the press-fitting of the link plate, taking into account both the installation of the dust cover and the press-fitting operation of the link plate, and ensuring the smooth assembly of the inner link 1 in the multiple-strand chain.

[0057] A press-fitting method for a multiple-strand chain with a dust cover, using the press-fitting equipment as described above;

[0058] At least includes the following steps:

[0059] S1. Pre-assembly: According to the number of press-fitting stations, select the corresponding number of inner chain link 1 accessories. Each set of inner chain link 1 accessories includes two chain plates 11, two sleeves 12 and two sets of rollers 13. In each set of inner chain link 1 accessories, select a single chain plate 11 and two sleeves 12, and press-fit them to form a plate-cylinder assembly, such as ​ Shown is a plate-cylinder assembly.

[0060] S2. Installation: Install the unpressed chain plates 11 in each group of inner link 1 accessories into the press-fitting station, wherein the pin hole on the chain plate 11 is inserted into the positioning needle 8, and the pin hole matches the second segment 812 of the needle body 81. Install the roller 13, the dust cover 14 and the plate-cylinder assembly into the press-fitting station, wherein the roller 13 is sleeved outside the sleeve 12, and the sleeve 12 is inserted into the positioning needle 8, wherein the upper end of the dust cover 14 is connected to the chain plate 11 on the plate-cylinder assembly, the inner hole of the sleeve 12 matches the first segment 811 of the positioning needle 8, and the lower end of the sleeve 12 abuts against the end of the second segment 812. The pin hole and the sleeve 12 are forced to be aligned through the needle body 81. That is, ​ Status shown.

[0061] S3. Press-fit: The drive module operates, causing the upper module 3 to move downward, and the inclined insert 62 to move downward synchronously. The inclined insert 62 first contacts the top cover slider 61, driving the ejector pin 72 to move horizontally. The ejector pin 72 contacts the dust cover 14, pressing and deforming the lower end of the dust cover 14 until the lower end is horizontally offset from the corresponding chain plate 11.

[0062] The upper module 3 continues to move downward until the press fitting head 2 contacts the plate-cylinder assembly. The press fitting head 2 applies pressure to the plate-cylinder assembly, and the sleeve 12 moves downward to press fit the corresponding chain plate 11. During the downward movement of the sleeve 11, the positioning pin 8 squeezes the press fitting elastic member 82, and the press fitting elastic member 82 moves downward, leaving space for the press fitting of the sleeve 12 and the chain plate 11. ​ Status shown.

[0063] The drive module is reset, the upper module 3 moves upward, the press-fitting head 2 and the oblique plug 62 move upward synchronously, the ejector pin 72 is driven to retreat by the reset unit, the pressure exerted by the ejector pin 72 on the dust cover 14 is removed, the lower end of the dust cover 14 is reset, and the buckle 16 at the lower end of the dust cover 14 is engaged from the outside of the chain plate 11, thus achieving the engagement between the lower chain plate 11 and the dust cover 14, completing the entire press-fitting operation. During the upward movement of the upper module 3, the press-fitting elastic member 82 drives the positioning pin 8 upward and lifts up the inner chain link 1 that has been press-fitted. ​ Status shown.

[0064] S4. Unloading: Remove the inner chain link 1 as a whole upward from the positioning pin 8.

[0065] In summary, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A press-fitting tooling for a double-speed chain with a dust cover, characterized in that At least: An installation module, the installation module includes a lower module and positioning pins, the lower module is provided with at least one press-fitting station, the positioning pins are vertically arranged at the press-fitting station, and the number of positioning pins on each press-fitting station is two; A press-fitting module, comprising an upper module, wherein the upper module is provided with a press-fitting head, the press-fitting head corresponding to each press-fitting station one by one and being arranged vertically opposite to each other; The top cover module includes an ejector pin, which is horizontally arranged on one side of the lower module. The ejector pin corresponds to the press-fitting station one by one and is located between two positioning pins.

2. The press-fitting tooling according to claim 1, characterized in that: The press-fitting station is provided with a lower pressure-bearing surface, the lower pressure-bearing surface is provided with a head-exposed groove, and the positioning pin is arranged in the head-exposed groove.

3. The press-fitting tooling according to claim 1, wherein: The positioning needle includes a needle body and a press-fit elastic member. The lower module is provided with a mounting hole. The needle body is slidably arranged in the mounting hole. The press-fit elastic member is arranged between the needle body and the lower module.

4. The press-fitting tooling according to claim 3, characterized in that: The needle body includes a first segment and a second segment from top to bottom along the axial direction, and the diameter of the first segment is smaller than that of the second segment; under normal conditions, the second segment extends out of the exposed groove.

5. The press-fitting tooling according to claim 1, wherein: An ejection channel is provided on the upper surface of the lower module. The ejection channel corresponds to the press-fitting station one by one and is located between two ejector pins. The ejection channel is arranged to penetrate the lower module in a horizontal direction.

6. The press-fitting tooling according to claim 1, wherein: The press-fitting head is provided with two press-fitting bosses, which are disconnected from each other.

7. The press-fitting tooling according to claim 1, wherein: The top cover module further comprises a guide block, the guide block is located at one side of the lower module, and the ejector pin is slidably arranged on the guide block.

8. The press-fitting tooling according to any one of claims 1-7, characterized in that: The top cover module also includes a top cover slider and an oblique plug-in. The top cover slider is arranged to slide horizontally. The oblique plug-in is fixedly connected to the upper module and extends downward. The top cover slider is located below the oblique plug-in. The lower end of the oblique plug-in is provided with an insertion surface, and the insertion surface is inclined toward the lower module.

9. The press-fitting tooling according to claim 8, wherein: The end of the top cover sliding block facing away from the lower module is provided with a roller, and the roller corresponds to the insertion surface.

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