Differential elastic pin press fitting equipment

Abstract

The application discloses a differential elastic pin press-fitting equipment, which comprises a rack, a process pin taking-out module and a press-fitting module, wherein the press-fitting module comprises a press-fitting mechanism, a floating adjusting mechanism and a press-fitting head mechanism; the press-fitting mechanism comprises a movable press-fitting machine and a connecting head connected to an output end of the press-fitting machine; the press-fitting head mechanism comprises a connecting rod and a press-fitting head connected to the connecting rod, and the press-fitting head is used for fixing elastic pins; the connecting rod is detachably connected to the connecting head; the press-fitting machine is used for driving the connecting head and the connecting rod to press down the press-fitting head, so that the elastic pins fixed in the press-fitting head are press-fitted into reserved hole positions of a differential provided after the process pins are taken out. The equipment has high automation degree, high work efficiency, high press-fitting precision, good press-fitting effect, and can automatically press-fit the elastic pins into the reserved hole positions of the differential shell, overcomes the defects of manual press-fitting, improves the yield of the elastic pin press-fitting, guarantees the product quality of the differential, and can improve the overall automation level of the differential production line.

Description

Technical Field

[0001] This invention relates to a differential elastic pin press-fitting device, belonging to the field of differential assembly technology. Background Technology

[0002] During differential assembly, spring pins need to be installed in pre-drilled holes in the differential housing to securely connect the upper and lower housings. However, currently, spring pin installation relies heavily on manual labor. Operators manually pick up the spring pin, align it with the pre-drilled hole in the differential housing, and then press it into place by tapping or other methods. This traditional manual installation method has significant drawbacks: high labor costs, increasing the overall manufacturing cost of the differential; low automation, with the entire process heavily reliant on manual labor, making seamless integration with highly automated differential production lines difficult and becoming a bottleneck for improving overall production line automation; and low work efficiency, with slow manual installation speed, making it difficult to meet the demands of large-scale, high-efficiency production.

[0003] Furthermore, before the flexible pin installation process, process pins need to be pre-installed in the reserved holes of the differential housing to pre-fix the upper and lower housings of the differential. This prevents misalignment or displacement of the housings during the processes prior to flexible pin installation due to the lack of pre-fixation, which would affect the normal operation of the processes prior to flexible pin installation. Because the reserved holes in the differential housing contain pre-fixing process pins, when the flexible pin needs to be installed in these holes, the process pins must first be removed before the flexible pin can be installed. However, the removal of process pins for differential assembly is mostly done manually, resulting in high labor costs, low automation, and low efficiency, failing to meet the high-efficiency assembly requirements of differential assembly production lines.

[0004] Existing technologies attempt to use a press-fitting machine to press-fit the flexible pins into pre-drilled holes in the differential housing. However, due to alignment errors or installation errors of the differential, the flexible pins may deviate from their intended positions when aligned with the pre-drilled holes. Furthermore, different sizes of differentials use different sizes of flexible pins, and this deviation increases further when using different flexible pins for different differentials. This results in the press-fitting machine being unable to accurately press the flexible pins into the pre-drilled holes in the differential housing, leading to low pressing accuracy and poor pressing effect. In severe cases, the flexible pin may collide with the differential housing, damaging either the flexible pin or the differential housing, significantly reducing the yield rate of the pressed-fitted flexible pins and affecting the quality of the differential product. In addition, the press-fitting machine lacks a matching pressing head, making it incompatible with the differential housing structure and preventing the machine from properly pressing the flexible pins into the pre-drilled holes in the differential housing. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a differential elastic pin press-fitting device. This device boasts a high degree of automation, high working efficiency, high press-fitting accuracy, and excellent press-fitting effect. It can automatically press the elastic pins into the pre-drilled holes in the differential housing, significantly reducing labor costs, overcoming the drawbacks of manual press-fitting, improving the yield rate of elastic pin press-fitting, ensuring the quality of differential products, enhancing the overall automation level of the differential production line, and meeting the needs of large-scale, high-efficiency production.

[0006] The purpose of this invention is to provide a differential spring pin press-fitting device, comprising:

[0007] A frame, wherein a conveyor frame is mounted on the frame, and a tray for carrying a differential is movably connected to the conveyor frame;

[0008] A process pin removal module is installed on the frame. The process pin removal module includes a movable gripper mechanism for removing the process pin from the reserved hole in the differential.

[0009] The press-fit module includes a press-fit mechanism and a floating adjustment mechanism mounted on the frame, and a press-fit head mechanism mounted on the floating adjustment mechanism;

[0010] The pressing mechanism includes a movable pressing machine and a connector connected to the output end of the pressing machine; the pressing head mechanism includes a connecting rod and a pressing head connected to the connecting rod, the pressing head being used to fix an elastic pin; the connecting rod and the connector are detachably connected, and the pressing machine is used to drive the connector, the connecting rod, and the pressing head to press down, so that the elastic pin fixed inside the pressing head is pressed into the reserved hole provided in the differential after the process pin is removed;

[0011] The floating adjustment mechanism includes a third linear module mounted on the frame, a second connecting plate connected to the output end of the third linear module, a first slide rail fixedly mounted on the second connecting plate, a first floating plate slidably connected to the first slide rail, a second slide rail fixedly mounted on the first floating plate, and a second floating plate slidably connected to the second slide rail. The pressing head mechanism is mounted on the second floating plate.

[0012] In one embodiment of the present invention, the second connecting plate is fixedly connected to a first fixed seat, the first floating plate is fixedly connected to a first floating block, the first floating block is movably connected inside the first fixed seat and a first spring is provided between the first floating block and the first fixed seat, and the moving direction of the first floating block is parallel to the first slide rail; the second floating plate is fixedly connected to a second fixed seat, the first floating plate is fixedly connected to a second floating block, the second fixed seat is movably connected outside the second floating block and a second spring is provided between the second fixed seat and the second floating block, and the moving direction of the second fixed seat is parallel to the second slide rail.

[0013] In one embodiment of the present invention, the first slide rail and the second slide rail are spatially perpendicular, the axis of the first spring is parallel to the first slide rail, and the axis of the second spring is parallel to the second slide rail.

[0014] In one embodiment of the present invention, the pressing module further includes a support, and the pressing mechanism and the floating adjustment mechanism are mounted on the support; the pressing mechanism further includes a third mounting plate mounted on the support, a second linear module mounted on the third mounting plate, and a first guide rail, the third mounting plate being provided with a sliding groove, a movable seat being slidably connected on the first guide rail, the pressing machine being mounted on the movable seat, and the output end of the pressing machine passing through the sliding groove and being fixedly connected to the connector, the output end of the second linear module being fixedly connected to a first connecting block, the first connecting block being fixedly connected to the movable seat, and the second linear module driving the movable seat and the pressing machine to move along the first guide rail through the first connecting block; the floating adjustment mechanism further includes a fourth mounting plate mounted on the support, the third linear module being mounted on the fourth mounting plate, and the output end of the third linear module being connected to the second connecting plate through the first connecting plate.

[0015] In one embodiment of the present invention, the press-fit module further includes a detection mechanism mounted on the floating adjustment mechanism. The detection mechanism includes a detection mounting plate mounted on the second floating plate, a detection cylinder mounted on the detection mounting plate, and a probe connected to the output end of the detection cylinder. The detection cylinder is used to drive the probe to move.

[0016] In one embodiment of the present invention, the connector is provided with a connecting groove, and the connecting rod is provided with a connecting protrusion adapted to the connecting groove, the connecting protrusion being able to be embedded in the connecting groove.

[0017] In one embodiment of the present invention, the pressing head mechanism further includes a third cylinder mounted on the second floating plate, a fourth cylinder connected to the output end of the third cylinder, and a third mounting base connected to the output end of the fourth cylinder, wherein the connecting rod is connected to the third mounting base.

[0018] In one embodiment of the present invention, the pressing head includes a pressing head body. One side of the pressing head body is provided with a clearance notch, a receiving hole for accommodating a resilient pin, and a first detection hole communicating with the receiving hole. A ball-head plunger extending into the receiving hole is installed inside the pressing head body. The resilient pin is embedded in the receiving hole and abuts against the end face of the ball-head plunger. A locking hole communicating with the ball-head plunger is opened at the end of the pressing head body. A fastener for locking the ball-head plunger is provided in the locking hole. The clearance notch and the first detection hole are connected. The shape of the speed reducer housing is adapted to the fastener, the fastener in the locking hole abuts against the side of the ball plunger, and the press-fit head body is connected to the connecting rod; the third mounting base is fixedly mounted with a mounting bracket, the mounting bracket is provided with a second detection hole, the second detection hole is aligned with the first detection hole, the second detection hole is equipped with a sensor, the sensor is used to detect whether there is a spring pin in the receiving hole; there are two of each of the second detection holes and the first detection hole, and the line connecting the two second detection holes passes through the first detection hole and the receiving hole of the press-fit head.

[0019] In one embodiment of the present invention, the process pin removal module is located on one side of the pressing module, the gripper mechanism is located above the conveyor frame, and a lifting mechanism is installed below the frame. The lifting mechanism includes a lifting cylinder for driving the tray and the differential on the tray to move up and down. The gripper mechanism is located above the lifting mechanism and includes a movable gripper for removing the process pin from the pre-drilled hole in the differential. The gripper mechanism also includes a fixed mounting bracket. The system comprises a column mounted on the frame, a first mounting base fixedly mounted on the column, a first linear module fixedly connected to the first mounting base, a first mounting plate connected to the output end of the first linear module, a first cylinder fixedly mounted on the first mounting plate, a fourth mounting plate connected to the output end of the first cylinder, a second cylinder fixedly mounted on the fourth mounting plate, and a gripper cylinder connected to the output end of the second cylinder, wherein the output end of the gripper cylinder is connected to the gripper; the first linear module is used to drive the first mounting plate, the first cylinder, the fourth mounting plate, the second cylinder, and the gripper cylinder. The cylinder and gripper move laterally. The first cylinder drives the fourth mounting plate, the second cylinder, the gripper cylinder, and the gripper to move longitudinally. The second cylinder drives the gripper cylinder and the gripper to move longitudinally. The gripper cylinder drives the gripper to open or close. The lifting mechanism also includes a second mounting base fixedly installed in the frame. The lifting cylinder is fixedly installed below the second mounting base. The output end of the lifting cylinder is connected to a first lifting plate, which is located below the conveyor frame. The lifting cylinder drives the first lifting plate to move up and down. A first linear bearing is fixedly installed on the second mounting base. A first guide shaft is fixedly installed on the first lifting plate. The first guide shaft is movably inserted into the first linear bearing. A first sensor and a second sensor are fixedly installed on one side of the conveyor frame. The first sensor detects whether the differential on the tray has moved below the gripper mechanism. The second sensor detects whether there is a process pin in the reserved hole of the differential. A pin mounting base for storing process pins and elastic pins is fixedly installed on the tray.

[0020] In one embodiment of the present invention, a press-fitting lifting module is installed inside the frame, located below the conveyor frame, and the press-fitting lifting module is located directly below the press-fitting module. The press-fitting lifting module includes a fifth mounting plate, a press-fitting lifting cylinder mounted on the fifth mounting plate, and a support block. The fifth mounting plate has a through hole, and the output end of the press-fitting lifting cylinder passes through the through hole and is fixedly connected to a lifting connector. The lifting connector is connected to a connecting seat, and the connecting seat is fixedly connected to a lifting seat. The lifting seat is fixedly connected to a second lifting plate, and a differential is located on the second lifting plate. The press-fitting lifting cylinder is used to drive the second lifting plate and the differential to perform lifting movements. The support block is connected to a support block drive mechanism. The bearing block driving mechanism is used to drive the bearing block to move; the bearing block has an opening groove on the side facing the lifting connector for accommodating the lifting connector and the connecting seat; a sixth mounting plate is fixedly connected to the fifth mounting plate, and the bearing block driving mechanism is fixedly installed on the sixth mounting plate; sixth mounting plate guide rails are fixedly installed on both sides above the sixth mounting plate, the bearing block is slidably connected in the sixth mounting plate guide rails, and the bearing block driving mechanism is used to drive the bearing block to move along the sixth mounting plate guide rails; the connecting seat has an embedding groove on the side facing the lifting connector, and the lifting connector has a head protrusion on the side facing the connecting seat, the head protrusion being embedded in the embedding groove.

[0021] The present invention has the following beneficial effects:

[0022] This invention provides a differential elastic pin press-fitting device. This device features a precise structure and accurate operation. Through the close cooperation between the process pin removal module, the press-fitting module, and the press-fitting lifting module, it integrates the processes of removing the process pin, removing the elastic pin, detecting the presence of the process pin in the pre-reserved hole of the differential to be press-fitted, aligning the elastic pin, and press-fitting the elastic pin into a single machine. This achieves a high degree of process concentration, high work efficiency, high automation, high press-fitting accuracy, and good press-fitting effect. It can automatically press the elastic pin into the pre-reserved hole of the differential housing, greatly saving labor costs, overcoming the drawbacks of manual press-fitting, improving the yield rate of elastic pin press-fitting, ensuring the quality of differential products, and enhancing the overall automation level of the differential production line, meeting the needs of large-scale, high-efficiency production. Attached Figure Description

[0023] Figure 1 A perspective view of the differential elastic pin press-fitting device provided by the present invention.

[0024] Figure 2 This is another perspective view of the differential elastic pin press-fitting device provided by the present invention.

[0025] Figure 3A perspective view of the process pin removal module provided by the present invention.

[0026] Figure 4 This is a perspective view of the process pin removal module provided by the present invention.

[0027] Figure 5 A perspective view of the press-fit module provided by the present invention.

[0028] Figure 6 This is a perspective view of the structure of the press-fit module provided by the present invention.

[0029] Figure 7 This is a perspective view of the structure of the press-fit module provided by the present invention.

[0030] Figure 8 A perspective view of the floating adjustment mechanism, pressing head mechanism, and detection mechanism provided by the present invention.

[0031] Figure 9 This is another perspective view of the floating adjustment mechanism, pressing head mechanism, and detection mechanism provided by the present invention.

[0032] Figure 10 This is a perspective view of the partial structure of the pressing head mechanism, the detection mechanism, and the floating adjustment mechanism provided by the present invention.

[0033] Figure 11 This is a perspective view of a portion of the floating adjustment mechanism provided by the present invention.

[0034] Figure 12 This is a perspective view of another part of the floating adjustment mechanism provided by the present invention.

[0035] Figure 13 This is a perspective view of the differential and press-fitting head mechanism provided by the present invention.

[0036] Figure 14 This is a perspective view of the press-fitting head fixing elastic pin provided by the present invention.

[0037] Figure 15 A perspective view of the press-fit head provided by the present invention.

[0038] Figure 16 This is a perspective view of the differential being installed on the press-fit lifting module, as provided by the present invention.

[0039] Figure 17 This is a perspective view of the press-fit lifting module provided by the present invention.

[0040] Figure 18 This is a front view of the press-fit lifting module provided by the present invention.

[0041] Figure 19This is a perspective view of the connecting seat and lifting connector provided by the present invention.

[0042] Figure 20 This is a perspective view of the structure of the press-fit lifting module provided by the present invention.

[0043] In the diagram: 1. Frame; 2. Process pin removal module; 20. Pin mounting base; 21. Gripper mechanism; 211. First linear module; 212. First mounting plate; 213. First cylinder; 214. Second mounting plate; 215. Second cylinder; 216. Gripper cylinder; 217. Gripper; 218. Column; 219. First mounting base; 22. Lifting mechanism; 221. Lifting cylinder; 222. Second mounting base; 223. First lifting plate; 224. First guide shaft; 225. First linear bearing; 23. First sensor; 24. Second sensor; 3. Press-fit module; 31. Press-fitting mechanism; 311. Press-fitting machine; 312. Third mounting plate; 313. Second linear module; 314. First connecting block; 315. Movable seat; 316. First guide rail; 317. Slide groove; 318. Connector; 3181. Connecting groove; 32. Floating adjustment mechanism; 321. Fourth mounting plate; 322. Third linear module; 323. First connecting plate; 324. Second connecting plate; 325. First slide rail; 326. First floating plate; 3261. First floating block; 3262. First spring; 3263. First fixed seat; 327. Second slide rail; 328. Second floating plate; 3281. Second floating block; 3282. Second spring; 3283. Second fixed seat; 33. Press-fit head mechanism; 331. Third cylinder; 332. Fourth cylinder; 333. Third mounting seat; 334. Connecting rod; 335. Connecting protrusion; 336. Press-fit head; 3361. Press-fit head body; 3362. Clearance notch; 3363. Ball plunger; 3364. Locking hole; 3365. First detection hole; 3366. Chamfer; 3367. Receiving hole; 3368. Mounting bracket; 3369. Second detection hole; 34. Detection mechanism; 341. Probe; 342. Detection mounting plate; 343. Detection cylinder; 35. Support; 4. Press-fit lifting module; 41. Fifth mounting plate; 411. Through hole; 42. Second lifting plate; 43. Press-fit lifting cylinder; 44. Lifting seat; 45. Connecting seat; 451. Embedded groove; 46. Lifting connector; 461. Head protrusion; 47. Bearing block drive mechanism; 48. Bearing block; 481. Opening groove; 49. Sixth mounting plate; 491. Sixth mounting plate guide rail; 5. Conveyor frame; 6. Differential; 61. Reserved hole; 7. Tray; 8. Process pin; 9. Elastic pin. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] like Figure 1 and Figure 2 As shown, the present invention provides a differential elastic pin pressing device. In some embodiments, it includes a frame 1, on which a conveyor frame 5 is mounted, and a process pin removal module 2 and a pressing module 3 are located above the conveyor frame 5. A tray 7 for carrying a differential 6 is slidably connected to the conveyor frame 5. The process pin removal module 2 is located on one side of the pressing module 3. A pressing lifting module 4 located below the conveyor frame 5 is installed inside the frame 1. The pressing lifting module 4 is located directly below the pressing module 3.

[0048] like Figure 3 and Figure 4As shown, in some embodiments, the process pin removal module 2 includes a gripper mechanism 21 located above the conveyor frame 5, and a lifting mechanism 22 is installed below the frame 1. The lifting mechanism 22 is located below the conveyor frame 5 and includes a lifting cylinder 221 for driving the tray 7 and the differential 6 on the tray 7 to perform lifting and lowering movements. The gripper mechanism 21 is located above the lifting mechanism 22 and includes a movable gripper 217 for removing the process pin 8 from the reserved hole 61 of the differential 6.

[0049] Optionally, the gripper mechanism 21 further includes a column 218 fixedly mounted on the frame 1, a first mounting base 219 fixedly mounted on the column 218, a first linear module 211 fixedly connected to the first mounting base 219, a first mounting plate 212 connected to the output end of the first linear module 211, a first cylinder 213 fixedly mounted on the first mounting plate 212, a fourth mounting plate 3214 connected to the output end of the first cylinder 213, a second cylinder 215 fixedly mounted on the fourth mounting plate 3214, and a gripper cylinder 216 connected to the output end of the second cylinder 215. The output end of the gripper cylinder 216 is connected to the gripper 217; the first linear module 211 is used to drive the first mounting plate 212, the first cylinder 213, the fourth mounting plate 3214, the second cylinder 215, the gripper cylinder 216, and the gripper 217 to move laterally; the first cylinder 213 is used to drive the fourth mounting plate 3214, the second cylinder 215, the gripper cylinder 216, and the gripper 217 to move longitudinally; the second cylinder 215 is used to drive the gripper cylinder 216 and the gripper 217 to move longitudinally; and the gripper cylinder 216 is used to drive the gripper 217 to open or close.

[0050] In this embodiment, the design of combining the first cylinder 213 and the second cylinder 215 increases the longitudinal displacement of the gripper 217, thereby adapting to differentials 6 of different heights and specifications, and expanding the applicability of the equipment. The gripper cylinder 216 drives the gripper 217 to open or close, so that the gripper 217 can remove the process pin 8 from the reserved hole 61 of the differential 6.

[0051] Optionally, the lifting mechanism 22 further includes a second mounting base 222 fixedly installed in the frame 1, a lifting cylinder 221 fixedly installed below the second mounting base 222, the output end of the lifting cylinder 221 connected to a first lifting plate 223, the first lifting plate 223 located below the conveyor frame 5, and the lifting cylinder 221 used to drive the first lifting plate 223 to perform lifting and lowering movements; a first linear bearing 225 is fixedly installed on the second mounting base 222, and a first guide shaft 224 is fixedly installed on the first lifting plate 223, the first guide shaft 224 being movably inserted through the first linear bearing 225.

[0052] In this embodiment, when the pallet 7 moves directly above the first lifting plate 223, the lifting cylinder 221 drives the first lifting plate 223 to move up and down. The first lifting plate 223 drives the pallet 7 and the differential 6 on the pallet 7 to move up and down, thereby lifting the differential 6 so that the gripper 217 of the gripper mechanism 21 can perform the process pin 8 removal operation on the lifted differential 6. The first guide shaft 224 of the first lifting plate 223 is movably inserted into the first linear bearing 225 of the second mounting base 222, providing guidance for the lifting movement of the first lifting plate 223. This facilitates a smoother lifting movement of the first lifting plate 223, ensuring that the pallet 7 and the differential 6 on the pallet 7 remain level during the lifting process, thus facilitating the gripper 217 to remove the process pin 8.

[0053] Optionally, a first sensor 23 and a second sensor 24 are fixedly installed on one side of the conveyor frame 5. The first sensor 23 is used to detect whether the differential 6 on the tray 7 has moved to the bottom of the gripper mechanism 21, and the second sensor 24 is used to detect whether there is a process pin 8 in the reserved hole 61 set in the differential 6.

[0054] In this embodiment, when the first sensor 23 detects that the differential 6 on the tray 7 has moved below the gripper mechanism 21, the gripper mechanism 21 and the lifting mechanism 22 are activated to begin the process pin removal operation on the differential 6. After the process pin 8 removal process is completed, the second sensor 24 detects whether the process pin 8 exists in the reserved hole 61 set in the differential 6, which can detect whether the process pin 8 in the differential 6 on the tray 7 has been successfully removed. This adds a detection process after the process pin 8 is removed, ensuring the accuracy of the equipment operation.

[0055] Optionally, a pin mounting seat 20 for storing the process pin 8 and the resilient pin 9 is fixedly installed on the tray 7, and the pin mounting seat 20 is located on one side of the differential 6. After the gripper 217 removes the process pin 8, it places the process pin 8 into the pin mounting seat 20, which also stores the resilient pin 9.

[0056] The process pin removal module 2 boasts a high degree of automation and efficiency, significantly reducing labor costs and meeting the high-efficiency assembly requirements of the differential assembly production line. Through the coordinated operation of the gripper mechanism 21, lifting mechanism 22, conveyor frame 5, and tray 7, this device automatically removes the process pin 8 from the pre-drilled hole 61 in the differential 6, facilitating the subsequent installation of the elastic pin 9. Furthermore, it uses a first sensor 23 to detect whether the differential 6 on the tray 7 has moved below the gripper mechanism 21, and a second sensor 24 to detect the presence of the process pin 8 in the pre-drilled hole 61 in the differential 6. This allows for successful removal of the process pin 8 from the differential 6 on the tray 7, adding a post-removal inspection step to ensure the accuracy of the equipment operation.

[0057] like Figures 5 to 15 As shown, in some embodiments, the press-fit module 3 includes a support 35, a press-fit mechanism 31 and a floating adjustment mechanism 32 mounted on the support 35, and a press-fit head mechanism 33 and a detection mechanism 34 mounted on the floating adjustment mechanism 32; the press-fit mechanism 31 includes a movable press-fit machine 311 and a connector 318 connected to the output end of the press-fit machine 311; the press-fit head mechanism 33 includes a connecting rod 334 and a press-fit head 336 connected to the connecting rod 334, with an elastic pin 9 fixed inside the press-fit head 336, and the connecting rod 334 and the connector 318 being detachably connected, and the press-fit machine 311 is used to drive the connector 318, the connecting rod 334, and the press-fit head 336 to press down, so that the elastic pin 9 fixed inside the press-fit head 336 is pressed into the reserved hole 61 of the differential 6 located below the press-fit head mechanism 33.

[0058] Optionally, the connector 318 is provided with a connecting groove 3181, and the connecting rod 334 is provided with a connecting protrusion 335 that is adapted to the connecting groove 3181, and the connecting protrusion 335 can be embedded into the connecting groove 3181.

[0059] In this embodiment, the connecting rod 334 and the connecting head 318 are detachably connected by the connecting protrusion 335 fitting into the connecting groove 3181. When the connecting protrusion 335 is inserted into the connecting groove 3181, the connecting rod 334 is connected to the connecting head 318, and the press-fitting machine 311 can drive the connecting head 318, the connecting rod 334, and the press-fitting head 336 to press down; when the connecting protrusion 335 is disengaged from the connecting groove 3181, the connecting head 318 of the press-fitting machine 311 is separated from the connecting rod 334 of the press-fitting head mechanism 33.

[0060] Optionally, the pressing mechanism 31 further includes a third mounting plate 312 fixedly mounted on the support 35, a second linear module 313 fixedly mounted on the third mounting plate 312, and a first guide rail 316. The third mounting plate 312 is provided with a sliding groove 317. A movable seat 315 is slidably connected to the first guide rail 316. The pressing machine 311 is fixedly mounted on the movable seat 315, and the output end of the pressing machine 311 passes through the sliding groove 317 and is fixedly connected to the connector 318. The output end of the second linear module 313 is fixedly connected to a first connecting block 314. The first connecting block 314 is fixedly connected to the movable seat 315. The second linear module 313 drives the movable seat 315 and the pressing machine 311 to move along the first guide rail 11 through the first connecting block 314.

[0061] In this embodiment, the second linear module 313 drives the movable seat 315 and the press machine 311 to move along the first guide rail 11 via the first connecting block 314, so that the output end of the press machine 311 passes through the slide groove 317 and drives the connector 318 to move, thereby making the connector 318 and the connecting rod 334 detachable. When the press machine 311 needs to perform press operation, the second linear module 313 drives the connector 318 to move, so that the connector 318 is connected to the connecting rod 334; when the press machine 311 does not need to perform press operation, the second linear module 313 drives the connector 318 to move, so that the connector 318 is separated from the connecting rod 334, thereby allowing the press head 336 connected to the connecting rod 334 to move independently, so as to facilitate the picking and alignment of the elastic pin 9.

[0062] Optionally, the floating adjustment mechanism 32 further includes a fourth mounting plate 321 fixedly mounted on the support 35, a third linear module 322 fixedly mounted on the fourth mounting plate 321, a first connecting plate 323 connected to the output end of the third linear module 322, a second connecting plate 324 fixedly connected to the first connecting plate 323, a first slide rail 325 fixedly mounted on the second connecting plate 324, a first floating plate 326 slidably connected to the first slide rail 325, a second slide rail 327 fixedly mounted on the first floating plate 326, and a second floating plate 328 slidably connected to the second slide rail 327. The pressing head mechanism 33 is mounted on the second floating plate 328.

[0063] In this embodiment, the third linear module 322 is used to drive the first connecting plate 323 to move. The first connecting plate 323 drives the press head mechanism 33 to move as a whole through the second connecting plate 324, the first floating plate 326, and the second floating plate 328.

[0064] Optionally, the second connecting plate 324 is fixedly connected to the first fixed seat 3263, the first floating plate 326 is fixedly connected to the first floating block 3261, the first floating block 3261 is movably connected inside the first fixed seat 3263, and a first spring 3262 is provided between the first floating block 3261 and the first fixed seat 3263. The moving direction of the first floating block 3261 is parallel to the first slide rail 325. The second floating plate 328 is fixedly connected to the second fixed seat 3283, the first floating plate 326 is fixedly connected to the second floating block 3281, the second fixed seat 3283 is movably connected outside the second floating block 3281, and a second spring 3282 is provided between the second fixed seat 3283 and the second slide rail 327. The first slide rail 325 and the second slide rail 327 are spatially perpendicular. The axial direction of the first spring 3262 is parallel to the first slide rail 325, and the axial direction of the second spring 3282 is parallel to the second slide rail 327.

[0065] In this embodiment, the first floating plate 326 of the floating adjustment mechanism 32 is slidably connected to the first slide rail 325, and the first floating block 3261, which is fixedly connected to the first floating plate 326, is movably connected to the first fixed seat 3263, which is fixedly connected to the second connecting plate 324. A first spring 3262 is provided between the first floating block 3261 and the first fixed seat 3263, so that the first floating plate 326 and the first floating block 3261 can make a small displacement in the X-axis direction along the first slide rail 325 on the second connecting plate 324, so that the first floating plate 326 has a small offset floating amount in the X-axis direction. The elastic force of the first spring 3262 can make the first floating plate 326 return to its initial position when no force is applied, that is, make the offset floating amount of the first floating plate 326 zero when no force is applied. The second floating plate 328 of the floating adjustment mechanism 32 is slidably connected to the second slide rail 327. The second fixed seat 3283, which is fixedly connected to the second floating plate 328, is movably connected to the second floating block 3281, which is fixedly connected to the first floating plate 326. A second spring 3282 is provided between the second floating block 3281 and the second fixed seat 3283, allowing the second floating plate 328 and the second fixed seat 3283 to make a small displacement in the Y-axis direction along the second slide rail 327 on the first floating plate 326. This results in a small offset floating amount for the second floating plate 328 in the Y-axis direction. The elastic force of the second spring 3282 can restore the second floating plate 328 to its initial position when no force is applied, that is, make the offset floating amount of the second floating plate 328 zero when no force is applied. The first connecting plate 323 is arranged vertically, and the second connecting plate 324 is arranged horizontally.

[0066] Therefore, the floating adjustment mechanism 32, through the combined cooperation of two floating plates, two slide rails, two floating blocks, two fixed seats, and two springs, allows the second floating plate 328 and the pressing head mechanism 33 fixed on the second floating plate 328 to have a small offset floating amount in the X and Y axis directions, thereby enabling fine adjustment of the displacement of the pressing head mechanism 33 in the X and Y axis directions. Since the elastic pin 9 may have a certain offset when aligned with the reserved hole 61 of the differential 6 due to alignment errors or installation errors of the differential 6, and since the elastic pin 9 used for different sizes of differentials 6 has different dimensions, the aforementioned offset will further increase when different elastic pins 9 are used to press different differentials 6. Therefore, the floating adjustment mechanism 32 and the pressing head mechanism 33 mounted on the floating adjustment mechanism 32 both have a small offset floating amount in the XY axis direction. This allows the pressing head mechanism 33 to adapt to a certain offset amount due to alignment error or installation error of differential 6 when the elastic pin 9 is aligned with the reserved hole 61. As a result, the pressing head mechanism 33 can accurately press the elastic pin 9 into the reserved hole 61 of differential 6, achieving high pressing accuracy and good pressing effect. This avoids collision between the elastic pin 9 and the differential housing, which could damage the elastic pin 9 or the differential housing. This greatly improves the yield rate of elastic pin 9 pressing, ensures the quality of differential products, and solves the problem of inaccurate pressing caused by a certain offset amount due to alignment error or installation error of differential 6 when the elastic pin 9 is aligned with the reserved hole 61 of differential 6.

[0067] Optionally, the detection mechanism 34 further includes a detection mounting plate 342 fixedly mounted on the second floating plate 328, a detection cylinder 343 fixedly mounted on the detection mounting plate 342, and a probe 341 connected to the output end of the detection cylinder 343, wherein the detection cylinder 343 is used to drive the probe 341 to move.

[0068] In this embodiment, the detection mechanism 34 is used to detect whether a process pin 8 exists in the reserved hole 61 of the differential 6 to be press-fitted with the elastic pin 9. Based on the second sensor 24 detecting the presence of the process pin 8 in the reserved hole 61 of the differential 6, the third linear module 322 and the detection cylinder 343 drive the probe 341 to move, so that the probe 341 is inserted into the reserved hole 61 of the differential 6, realizing a secondary re-inspection of the process pin 8. After confirming that the second sensor 24 and the detection mechanism 34 have checked the reserved hole 61 of the differential 6 twice and found no process pin 8, the pressing machine 311 is then started to press the elastic pin 9 into the reserved hole 61 of the differential 6, thereby avoiding collision between the elastic pin 9 and the process pin 8 that has not been removed from the reserved hole 61, avoiding equipment damage, and ensuring the safety of equipment use. The detection mechanism 34 is fixed on the second floating plate 328 and located on one side of the pressing head mechanism 33, so that the detection mechanism 34 has a small offset floating amount in both the X and Y axes. This allows the displacement of the detection mechanism 34 in the X and Y axes to be finely adjusted, thereby enabling the detection mechanism 34 to adapt to a certain offset due to alignment error or installation error of differential 6 when the probe 341 is aligned with the reserved hole 61. This allows the probe 341 of the detection mechanism 34 to be accurately inserted into the reserved hole 61 of differential 6.

[0069] Optionally, the pressing head mechanism 33 further includes a third cylinder 331 fixedly mounted on the second floating plate 328, a fourth cylinder 332 connected to the output end of the third cylinder 331, and a third mounting base 333 connected to the output end of the fourth cylinder 332, with the connecting rod 334 connected in the third mounting base 333.

[0070] In this embodiment, the third cylinder 331 drives the fourth cylinder 332, the third mounting base 333, and the pressing head 336 to move longitudinally. The fourth cylinder 332 further drives the third mounting base 333 and the pressing head 336 to move longitudinally. Thus, the design of the combination of the third cylinder 331 and the fourth cylinder 332 can improve the displacement of the longitudinal movement of the pressing head 336, thereby adapting to differentials 6 of different height specifications and improving the applicability of the equipment.

[0071] Optionally, the press-fit head 336 includes a press-fit head body 3361. One side of the press-fit head body 3361 is provided with a clearance notch 3362, a receiving hole 3367 for accommodating the elastic pin 9, and a first detection hole 3365 communicating with the receiving hole 3367. A ball-head plunger 3363 extending into the receiving hole 3367 is installed inside the press-fit head body 3361. The elastic pin 9 is embedded in the receiving hole 3367 and abuts against the end face of the ball-head plunger 3363. A locking hole 3364 communicating with the ball-head plunger 3363 is opened at the end of the press-fit head body 3361. A fastener for locking the ball-head plunger 3363 is provided in the locking hole 3364. The clearance notch 3362 is adapted to the shape of the differential 6 housing. The fastener in the locking hole 3364 abuts against the side of the ball plunger 3363. The end of the receiving hole 3367 is provided with a chamfer 3366. The press head body 3361 is connected to the connecting rod 334. The third mounting base 33 is fixedly mounted with a mounting bracket 3368. The mounting bracket 3368 is provided with a second detection hole 3369. The second detection hole 3369 is aligned with the first detection hole 3365. A sensor is installed in the second detection hole 3369. The sensor is used to detect whether there is an elastic pin 9 in the receiving hole 3367. There are two second detection holes 3369 and two first detection holes 3365. The line connecting the two second detection holes 3369 passes through the first detection hole 3365 and the receiving hole 3367 of the press head 336.

[0072] In this embodiment, when the pressing head 336 presses the elastic pin 9 into the reserved hole 61 of the differential 6, the clearance notch 3362 of the pressing head 336 is adapted to the shape of the differential 6 housing. The clearance notch 3362 allows the pressing head 336 to avoid interference with the differential 6 housing during pressing, thus ensuring the elastic pin 9 is successfully pressed into the reserved hole 61 of the differential housing. Furthermore, the clearance notch 3362 is adaptable to the shapes of differential 6 housings of different sizes, allowing the pressing head 336 to accommodate differentials of different sizes, thereby increasing its applicability. The fastener inside the locking hole 3364 abuts against the side of the ball plunger 3363, thereby locking the ball plunger 3363 into the press-fit head 336. This prevents the ball plunger 3363 from loosening or falling out due to repeated contact between the elastic pin 9 and the ball plunger 3363, thus ensuring the effective fixation of the elastic pin 9 by the press-fit head 336. The chamfer 3366 provides a guide for the insertion of the elastic pin 9 into the receiving hole 3367, facilitating the insertion of the elastic pin 9. Since the connection between the two second detection holes 3369 passes through the first detection hole 3365 and the receiving hole 3367 of the pressing head 336, the detection light from the sensor at the second detection hole 3369 can pass through the second detection hole 3369 and the first detection hole 3365 in sequence and enter the receiving hole 3367. This allows the detection of whether there is a spring pin 9 in the receiving hole 3367, preventing damage to the pressing head 336 or the housing of the differential 6 caused by pressing the differential 6 without a fixed spring pin 9 in the pressing head 336, thus ensuring the accuracy of the pressing.

[0073] Thus, the press-fit head 336, through the elastic force of the ball plunger 3363, presses the elastic pin 9, thereby fixing the elastic pin 9 in the receiving hole 3367 of the press-fit head 336. The press-fit machine 311 drives the connecting rod 334 and the press-fit head 336 to press down, overcoming the elastic pressing force of the ball plunger 3363 on the elastic pin 9, thereby pressing the elastic pin 9 fixed in the press-fit head 336 into the reserved hole 61 provided in the differential 6. The press-fit head 336, through the clearance notch 3362, allows it to avoid interference with the differential 6 housing during pressing, thus ensuring the smooth pressing of the elastic pin 9 into the pre-drilled hole 61 in the differential housing. Simultaneously, the clearance notch 3362 is adaptable to the shape of differential 6 housings of different sizes, enabling the press-fit head 336 to accommodate differentials of varying sizes and thus expanding its applicability. The press-fit head 336 uses a fastener within the locking hole 3364 to abut against the side of the ball plunger 3363, locking the ball plunger 3363 within the press-fit head 336. This prevents repeated contact between the elastic pin 9 and the ball plunger 3363, which could lead to loosening or falling off, ensuring the effective fixation of the elastic pin 9 by the press-fit head 336. Furthermore, the detection light from the sensor at the second detection hole 3369 of the press-fit head 336 can sequentially pass through the second detection hole 3369 and the first detection hole 3365 and enter the receiving hole 3367, thereby detecting whether the elastic pin 9 is present in the receiving hole 3367. This prevents damage to the press-fit head 336 or the differential 6 housing caused by pressing the differential 6 without a fixed elastic pin 9 inside the press-fit head 336, ensuring the accuracy of the press-fit. Therefore, the press-fit head 336 can be used in conjunction with the press-fit machine 311 to smoothly press the elastic pin 9 into the reserved hole 61 in the differential housing, greatly improving the efficiency of differential elastic pin installation and meeting the high-efficiency assembly requirements of the differential assembly production line.

[0074] When the pressing mechanism 31 of the pressing module 3 is separated from the pressing head mechanism 33, the pressing head mechanism 33, detached from the pressing mechanism 31, performs the picking and alignment of the elastic pin 9. When the pressing mechanism 31 is connected to the pressing head mechanism 33, the pressing machine 311 of the pressing mechanism 31 presses down on the pressing head 336 of the pressing head mechanism 33, thereby pressing the elastic pin 9 fixed in the pressing head 336 into the reserved hole 61 of the differential 6, completing the pressing operation of the differential elastic pin 9. Since the pressing of the elastic pin 9 requires a large pressing force, the pressing machine 311 is connected to the pressing head 336 and the pressing head 336 is pressed down to smoothly press the elastic pin 9 fixed in the pressing head 336 into the reserved hole 61 of the differential 6. Furthermore, due to the significant weight of the press-fitting machine 311, designing it as an integral part of the press-fitting head mechanism 33 would increase operating costs and reduce the alignment accuracy of the elastic pin 9. This differential elastic pin press-fitting device, through its detachable press-fitting mechanism 31 and press-fitting head mechanism 33, allows the press-fitting head mechanism 33 to move independently when the two are separated, completing the picking and alignment of the elastic pin 9, thus reducing overall operating costs and improving alignment accuracy. When the press-fitting mechanism 31 and press-fitting head mechanism 33 are connected, the press-fitting machine 311 presses down on the press-fitting head 336 to complete the press-fitting of the elastic pin 9, automatically pressing the elastic pin 9 into the pre-drilled hole 61 in the differential housing. This high degree of automation and efficiency significantly reduces labor costs, improves the overall automation level of the differential production line, and meets the needs of large-scale, high-efficiency production.

[0075] like Figures 16 to 20As shown, the press-fit lifting module 4 includes a fifth mounting plate 41, a press-fit lifting cylinder 43 mounted on the fifth mounting plate 41, and a support block 48. The fifth mounting plate 41 has a through hole 411. The output end of the press-fit lifting cylinder 43 passes through the through hole 411 and is fixedly connected to a lifting connector 46. The lifting connector 46 is connected to a connecting seat 45. The connecting seat 45 is fixedly connected to a lifting seat 44. The lifting seat 44 is fixedly connected to a second lifting plate 42. A differential 6 is located on the second lifting plate 42. The press-fit lifting cylinder 43 is used to drive the second lifting plate 42 and the differential 6 to perform lifting and lowering movements. The support block 48 is connected to a support block drive mechanism 47, which is used to drive the support block 48 to move. The support block 48 faces the top. A groove 481 is provided on one side of the lifting connector 46 to accommodate the lifting connector 46 and the connecting seat 45; a sixth mounting plate 49 is fixedly connected to the fifth mounting plate 41, and a bearing block drive mechanism 47 is fixedly installed on the sixth mounting plate 49; a sixth mounting plate guide rail 491 is fixedly installed on both sides above the sixth mounting plate 49, and a bearing block 48 is slidably connected in the sixth mounting plate guide rail 491. The bearing block drive mechanism 47 is used to drive the bearing block 48 to move along the sixth mounting plate guide rail 491; an embedding groove 451 is provided on the side of the connecting seat 45 facing the lifting connector 46, and a head protrusion 461 is provided on the side of the lifting connector 46 facing the connecting seat 45. The head protrusion 461 is embedded in the embedding groove 451.

[0076] In this embodiment, the sixth mounting plate guide rails 491, fixedly mounted on both sides above the sixth mounting plate 49, provide guidance for the movement of the support block 48, enabling the support block 48 to move precisely along the sixth mounting plate guide rails 491, thus ensuring the movement accuracy of the support block 48. The head protrusion 461 is embedded in the embedding groove 451, allowing the head protrusion 461 and the embedding groove 451 to cooperate with each other, achieving the connection between the connecting seat 45 and the lifting connecting head 46. This ensures that the press-fit lifting cylinder 43 smoothly drives the lifting seat 44, the second lifting plate 42, and the differential 6 to perform lifting and lowering movements through the lifting connecting head 46 and the connecting seat 45. Optionally, the support block drive mechanism 47 is a cylinder.

[0077] The working process of the press-fit lifting module 4 is as follows: the output end of the press-fit lifting cylinder 43 passes through the through hole 411 to drive the lifting connector 46 to lift. The lifting connector 46 drives the lifting seat 44 to lift through the connecting seat 45. The lifting seat 44 drives the second lifting plate 42 to lift, thereby completing the lifting of the differential 6 on the second lifting plate 42. After the differential 6 is lifted, the bearing block drive mechanism 47 drives the bearing block 48 to move along the sixth mounting plate guide rail 491, so that the bearing block 48 moves to the bottom of the lifting seat 44. At this time, the lifting connector 46 and the connecting seat 45 are located in the opening slot 481. After the bearing block 48 moves to the bottom of the lifting seat 44, the press-fit lifting cylinder 43 retracts, and the lifting seat 44 descends until it abuts against the top of the bearing block 48. At this time, the bearing block 48 bears the weight of the entire lifting seat 44, the second lifting plate 42, and the differential 6. Press-fitting machine 311 begins the press-fitting operation, pressing the elastic pin 9 into the reserved hole 61 in the differential housing. After the elastic pin 9 is pressed in, press-fitting machine 311 returns to its original position, press-fitting lifting cylinder 43 drives the differential 6 to rise, the support block drive mechanism 47 retracts, and the support block 48 returns to its initial position. Then, press-fitting lifting cylinder 43 drives the differential 6 to fall, so that the differential 6 returns to its initial position after the elastic pin 9 press-fitting operation is completed, thus completing the elastic pin 9 press-fitting process during the assembly of the differential 6.

[0078] The press-fit lifting module 4, through the cooperation of the press-fit lifting cylinder 43 and the bearing block drive mechanism 47, after the press-fit lifting cylinder 43 completes the lifting of the differential 6, the bearing block drive mechanism 47 drives the bearing block 48 to move below the lifting seat 44, and the press-fit lifting cylinder 43 retracts. Thus, the bearing block 48 bears the pressing force of the press-fitting machine 311 and the weight of the differential 6, avoiding the press-fit lifting cylinder 43 from directly bearing the pressing force of the press-fitting machine 311 or the weight of the differential 6, thereby protecting the press-fit lifting cylinder 43 and effectively preventing damage to the press-fit lifting cylinder 43. This greatly improves the service life and reliability of the equipment, thereby improving the assembly efficiency of the differential 6. Furthermore, the bearing block 48 has a strong load-bearing capacity and can be adapted to differentials 6 of different weights, with high adaptability. It can also make the pressing force of the press machine 311 or the gravity of the differential 6 evenly distributed, avoiding affecting the pressing quality of the elastic pin 9, thereby improving the assembly quality of the differential 6.

[0079] Furthermore, the present invention also provides a method for press-fitting a differential elastic pin, using the aforementioned differential elastic pin press-fitting equipment, the method comprising the following steps:

[0080] Step 1: Remove the process pin 8; the conveyor frame 5 drives the tray 7 and the differential 6 on the tray 7 to move below the gripper mechanism 21 of the process pin removal module 2. The first sensor 23 detects whether the differential 6 is in position. After detection, the gripper mechanism 21 and the lifting mechanism 22 are activated; the lifting cylinder 221 of the lifting mechanism 22 drives the first lifting plate 223 to rise, and the first lifting plate 223 drives the tray 7 and the differential 6 on the tray 7 to lift; the first linear module 211 of the gripper mechanism 21 drives the first mounting plate 212, the first cylinder 213, the fourth mounting plate 3214, the second cylinder 215, the gripper cylinder 216, and the gripper 217 to move laterally; the first cylinder 213 drives the fourth mounting plate 3214, the second cylinder 215, the gripper cylinder 216, and the gripper 217 to move longitudinally; the second cylinder 215 drives the gripper cylinder 216 and the gripper 217 to move longitudinally. The gripper 217 is moved to the process pin 8 in the reserved hole 61 of the differential 6; the gripper cylinder 216 drives the gripper 217 to close, clamping and fixing the process pin 8; the first cylinder 213 and the second cylinder 215 drive the gripper 217 and the process pin 8 in the gripper 217 to rise, thereby removing the process pin 8 from the reserved hole 61 of the differential 6; the first linear module 211, the first cylinder 213, and the second cylinder 215 drive the gripper 217. The process pin 8 in the gripper 217 moves to the pin mounting seat 20, and the gripper cylinder 216 drives the gripper 217 to open so that the process pin 8 can be placed into the pin mounting seat 20. When the gripper 217 removes the process pin 8 from the reserved hole 61 of the differential 6, the second sensor 24 detects whether there is a process pin 8 in the reserved hole 61 of the differential 6, thereby detecting whether the process pin 8 in the differential 6 on the tray 7 has been successfully removed.

[0081] Step 2: Press head mechanism 33 picks up elastic pin 9; after the conveyor frame 5 removes process pin 8, the differential 6 moves to the bottom of press module 3. The third linear module 322 of floating adjustment mechanism 32 drives the first connecting plate 323 to move. The first connecting plate 323 drives the press head mechanism 33 to move as a whole to the top of elastic pin 9 in pin mounting seat 20 through the second connecting plate 324, the first floating plate 326, and the second floating plate 328. The third cylinder 331 and the fourth cylinder 332 of press head mechanism 33 drive press head 336 to press down, fixing the elastic pin 9 below press head 336 inside press head 336.

[0082] Step 3: The detection mechanism 34 checks whether there is a process pin 8 in the reserved hole 61 of the differential 6 to be press-fitted with the elastic pin 9; the pressing and lifting module 4 lifts the differential 6, and the third linear module 322 of the floating adjustment mechanism 32 and the detection cylinder 343 drive the probe 341 to move, so that the probe 341 is inserted into the reserved hole 61 of the differential 6, realizing a second re-inspection of the process pin 8. After confirming that the second sensor 24 and the detection mechanism 34 have checked the reserved hole 61 of the differential 6 twice and found no process pin 8, the pressing machine 311 is started to press the elastic pin 9 into the reserved hole 61 of the differential 6.

[0083] Step 4: Alignment of elastic pin 9; The third linear module 322 of the floating adjustment mechanism 32 and the third cylinder 331 and fourth cylinder 332 of the pressing head mechanism 33 drive the pressing head 336 and the elastic pin 9 fixed inside the pressing head 336 to move directly above the reserved hole 61 set in the differential 6, completing the alignment operation between the elastic pin 9 and the reserved hole 61.

[0084] Step 5: The pressing mechanism 31 is connected to the pressing head mechanism 33 after the alignment operation is completed; the second linear module 313 of the pressing mechanism 31 drives the connector 318 to move, so that when the connecting protrusion 335 is embedded in the connecting groove 3181, the connection between the connecting rod 334 and the connector 318 is completed.

[0085] Step 6: Pressing mechanism 31 presses; After the connecting rod 334 is connected to the connecting head 318, the press machine 311 drives the connecting head 318, the connecting rod 334, and the press head 336 to press down, pressing the elastic pin 9 fixed inside the press head 336 into the reserved hole 61 of the differential 6, thereby completing the press-fitting operation of the differential elastic pin 9.

[0086] Step 7: The pressing mechanism 31 separates from the pressing head mechanism 33 after the pressing operation is completed; the second linear module 313 of the pressing mechanism 31 drives the connector 318 to move, so that the connecting protrusion 335 disengages from the connecting groove 3181, thereby separating the connector 318 of the pressing machine 311 from the connecting rod 334 of the pressing head mechanism 33. Repeat steps 1 to 6 above to complete the pressing operation of the elastic pin 9 of the next differential 6.

[0087] In summary, the differential elastic pin pressing equipment provided by this invention has a precise structure and accurate operation. Through the close cooperation between the process pin removal module, the pressing module, and the pressing lifting module, the equipment integrates the processes of removing the process pin, removing the elastic pin, detecting whether the process pin exists in the reserved hole of the differential to be pressed, aligning the elastic pin, and pressing the elastic pin into one machine. This achieves a high degree of process concentration, high work efficiency, high automation, high pressing accuracy, and good pressing effect. It can automatically press the elastic pin into the reserved hole of the differential housing, greatly saving labor costs, overcoming the drawbacks of manual pressing, improving the yield rate of elastic pin pressing, ensuring the quality of differential products, and improving the overall automation level of the differential production line to meet the needs of large-scale, high-efficiency production.

[0088] This document uses specific embodiments to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely illustrative and are intended to aid in understanding the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A differential spring pin press-fitting device, characterized in that, include: A frame, wherein a conveyor frame is mounted on the frame, and a tray for carrying a differential is movably connected to the conveyor frame; A process pin removal module is installed on the frame. The process pin removal module includes a movable gripper mechanism for removing the process pin from the reserved hole in the differential. The press-fit module includes a press-fit mechanism and a floating adjustment mechanism mounted on the frame, and a press-fit head mechanism mounted on the floating adjustment mechanism; The pressing mechanism includes a movable pressing machine and a connector connected to the output end of the pressing machine; the pressing head mechanism includes a connecting rod and a pressing head connected to the connecting rod, the pressing head being used to fix an elastic pin; the connecting rod and the connector are detachably connected, and the pressing machine is used to drive the connector, the connecting rod, and the pressing head to press down, so that the elastic pin fixed inside the pressing head is pressed into the reserved hole provided in the differential after the process pin is removed; The floating adjustment mechanism includes a third linear module mounted on the frame, a second connecting plate connected to the output end of the third linear module, a first slide rail fixedly mounted on the second connecting plate, a first floating plate slidably connected to the first slide rail, a second slide rail fixedly mounted on the first floating plate, and a second floating plate slidably connected to the second slide rail. The pressing head mechanism is mounted on the second floating plate. The second connecting plate is fixedly connected to a first fixed seat, the first floating plate is fixedly connected to a first floating block, the first floating block is movably connected inside the first fixed seat and a first spring is provided between the first floating block and the first fixed seat, and the moving direction of the first floating block is parallel to the first slide rail; the second floating plate is fixedly connected to a second fixed seat, the first floating plate is fixedly connected to a second floating block, the second fixed seat is movably connected outside the second floating block and a second spring is provided between the second fixed seat and the second floating block, and the moving direction of the second fixed seat is parallel to the second slide rail; The press-fit module also includes a detection mechanism installed on the floating adjustment mechanism. The detection mechanism includes a detection mounting plate installed on the second floating plate, a detection cylinder installed on the detection mounting plate, and a probe connected to the output end of the detection cylinder. The detection cylinder is used to drive the probe to move.

2. The differential elastic pin press-fitting device according to claim 1, characterized in that, The first slide rail and the second slide rail are spatially perpendicular, the axis of the first spring is parallel to the first slide rail, and the axis of the second spring is parallel to the second slide rail.

3. The differential elastic pin press-fitting device according to claim 1, characterized in that, The pressing module further includes a support, on which the pressing mechanism and the floating adjustment mechanism are mounted. The pressing mechanism further includes a third mounting plate mounted on the support, a second linear module mounted on the third mounting plate, and a first guide rail. The third mounting plate is provided with a sliding groove. A movable seat is slidably connected to the first guide rail. The pressing machine is mounted on the movable seat, and its output end passes through the sliding groove and is fixedly connected to the connector. A first connecting block is fixedly connected to the output end of the second linear module. The first connecting block is fixedly connected to the movable seat. The second linear module drives the movable seat and the pressing machine to move along the first guide rail through the first connecting block. The floating adjustment mechanism further includes a fourth mounting plate mounted on the support. The third linear module is mounted on the fourth mounting plate, and its output end is connected to the second connecting plate through the first connecting plate.

4. The differential elastic pin press-fitting device according to claim 1, characterized in that, The connector is provided with a connecting groove, and the connecting rod is provided with a connecting protrusion that matches the connecting groove, and the connecting protrusion can be embedded into the connecting groove.

5. The differential spring pin press-fitting device according to claim 1, characterized in that, The press-fitting head mechanism further includes a third cylinder mounted on the second floating plate, a fourth cylinder connected to the output end of the third cylinder, and a third mounting base connected to the output end of the fourth cylinder, with the connecting rod connected to the third mounting base.

6. The differential elastic pin press-fitting device according to claim 5, characterized in that, The press-fit head includes a press-fit head body. One side of the press-fit head body has a clearance notch, a receiving hole for accommodating a spring pin, and a first detection hole communicating with the receiving hole. A ball plunger extending into the receiving hole is installed inside the press-fit head body. The spring pin is embedded in the receiving hole and abuts against the end face of the ball plunger. A locking hole communicating with the ball plunger is opened at the end of the press-fit head body. A fastener for locking the ball plunger is provided in the locking hole. The clearance notch is adapted to the shape of the differential housing. The fastener in the locking hole abuts against the side of the ball plunger. The press-fit head body is connected to the connecting rod. A mounting bracket is fixedly installed on the third mounting base. The mounting bracket has a second detection hole aligned with the first detection hole. A sensor is installed in the second detection hole to detect the presence of a spring pin in the receiving hole. There are two second detection holes and two first detection holes. The line connecting the two second detection holes passes through the first detection hole and the receiving hole of the press-fit head.

7. The differential elastic pin press-fitting device according to claim 1, characterized in that, The process pin removal module is located on one side of the pressing module. The gripper mechanism is located above the conveyor frame. A lifting mechanism is installed below the frame and includes a lifting cylinder for driving the pallet and the differential on the pallet to move up and down. The gripper mechanism is located above the lifting mechanism and includes movable grippers for removing the process pin from the pre-drilled holes in the differential. The gripper mechanism also includes a column fixedly mounted on the frame. The system comprises: a first mounting base fixedly mounted on a column; a first linear module fixedly connected to the first mounting base; a first mounting plate connected to the output end of the first linear module; a first cylinder fixedly mounted on the first mounting plate; a fourth mounting plate connected to the output end of the first cylinder; a second cylinder fixedly mounted on the fourth mounting plate; and a gripper cylinder connected to the output end of the second cylinder, wherein the output end of the gripper cylinder is connected to the gripper. The first linear module is used to drive the first mounting plate, the first cylinder, the fourth mounting plate, the second cylinder, the gripper cylinder, and the gripper to perform... Lateral movement is achieved by the first cylinder driving the fourth mounting plate, the second cylinder, the gripper cylinder, and the gripper to move longitudinally, and the second cylinder driving the gripper cylinder and the gripper to move longitudinally. The gripper cylinder is used to drive the gripper to open or close. The lifting mechanism also includes a second mounting base fixedly installed within the frame. The lifting cylinder is fixedly installed below the second mounting base, and the output end of the lifting cylinder is connected to a first lifting plate located below the conveyor frame. The lifting cylinder drives the first lifting plate to move up and down. A first linear bearing is fixedly installed on the second mounting base, and a first guide shaft is fixedly installed on the first lifting plate. The first guide shaft is movably inserted through the first linear bearing. A first sensor and a second sensor are fixedly installed on one side of the conveyor frame. The first sensor is used to detect whether the differential on the tray has moved below the gripper mechanism, and the second sensor is used to detect whether there is a process pin in the reserved hole of the differential. A pin mounting base for storing process pins and elastic pins is fixedly installed on the tray.

8. The differential elastic pin press-fitting device according to claim 1, characterized in that, The frame houses a pressing and lifting module located below the conveyor frame, with the pressing and lifting module positioned directly below the pressing module. The pressing and lifting module includes a fifth mounting plate, a pressing and lifting cylinder mounted on the fifth mounting plate, and a support block. The fifth mounting plate has a through hole, through which the output end of the pressing and lifting cylinder is fixedly connected to a lifting connector. The lifting connector is connected to a connecting seat, which is fixedly connected to a lifting seat. The lifting seat is fixedly connected to a second lifting plate, and a differential is located on the second lifting plate. The pressing and lifting cylinder drives the second lifting plate and the differential to move in a lifting motion. The support block is connected to a support block drive mechanism. The mechanism is used to drive the support block to move; the support block has an opening groove on the side facing the lifting connector for accommodating the lifting connector and the connecting seat; a sixth mounting plate is fixedly connected to the fifth mounting plate, and the support block drive mechanism is fixedly mounted on the sixth mounting plate; sixth mounting plate guide rails are fixedly mounted on both sides above the sixth mounting plate, the support block is slidably connected in the sixth mounting plate guide rails, and the support block drive mechanism is used to drive the support block to move along the sixth mounting plate guide rails; the connecting seat has an embedding groove on the side facing the lifting connector, and the lifting connector has a head protrusion on the side facing the connecting seat, the head protrusion being embedded in the embedding groove.

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