Tool for differential elastic pin press fitting

Abstract

The utility model discloses a kind of tool for differential elastic pin press mounting, the tool includes press head, the press head includes press head body, the side of press head body is provided with avoidance gap, the accommodating hole for accommodating elastic pin and the first detection hole communicated with the accommodating hole, the ball head plunger of press head body is installed in the inside and is inserted into the accommodating hole, the elastic pin is embedded into the accommodating hole and with the end surface of ball head plunger abuts, the end of press head body is provided with the locking hole communicated with ball head plunger, locking hole is provided with fastener for locking ball head plunger in it. The tool can be used with press mounting machine, can smoothly press mounting elastic pin in the reserved hole position of differential housing, greatly improve the work efficiency of differential elastic pin installation, can meet the requirement of efficient assembly to differential assembly production line.

Description

Technical Field

[0001] This utility model relates to a tooling for press-fitting elastic pins of differentials, belonging to the field of differential assembly technology. Background Technology

[0002] During the assembly of the differential, elastic pins need to be installed in the reserved holes in the differential housing to securely connect the upper and lower housings. Currently, most existing elastic pin installation methods rely on manual installation, which results in high labor costs, low automation, and low work efficiency.

[0003] Existing technologies attempt to use a press-fitting machine to press the elastic pin into the pre-drilled holes in the differential housing. However, the press-fitting machine lacks the necessary tooling for the pressing process, making it incompatible with the differential housing structure and thus preventing the press-fitting machine from successfully pressing the elastic pin into the pre-drilled holes in the differential housing.

[0004] Therefore, there is a lack of tooling for press-fitting the elastic pin of the differential in the existing technology. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a tooling for press-fitting differential elastic pins. This tooling can be used in conjunction with a press-fitting machine to smoothly press the elastic pins into the pre-drilled holes in the differential housing, greatly improving the efficiency of differential elastic pin installation and meeting the requirements of high-efficiency assembly in differential assembly production lines.

[0006] This utility model provides a tooling for press-fitting a differential elastic pin, including a press-fitting head. The press-fitting head includes a press-fitting head body. One side of the press-fitting head body is provided with a clearance notch, a receiving hole for accommodating the elastic pin, and a first detection hole communicating with the receiving hole. A ball plunger extending into the receiving hole is installed inside the press-fitting head body. The elastic 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-fitting head body. A fastener for locking the ball plunger is provided in the locking hole.

[0007] In one embodiment of this utility model, the clearance notch is adapted to the shape of the differential housing.

[0008] In one embodiment of this utility model, the fastener in the locking hole abuts against the side of the ball plunger.

[0009] In one embodiment of this utility model, the end of the receiving hole is provided with a chamfer.

[0010] In one embodiment of this utility model, a connecting seat is provided on the side of the pressing head body away from the clearance notch, the connecting seat is connected to a mounting seat, the mounting seat is connected to a connecting shaft, and the connecting shaft is connected to a pressing machine.

[0011] In one embodiment of this utility model, the connecting seat is a flange structure.

[0012] In one embodiment of this utility model, the 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, and a sensor is installed in the second detection hole. The sensor is used to detect whether there is an elastic pin in the receiving hole.

[0013] In one embodiment of this utility model, 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 pressing head.

[0014] In one embodiment of this utility model, there are two ball-head plungers, which are disposed on both sides of the receiving hole, and the two ball-head plungers together fix the elastic pin in the receiving hole.

[0015] In one embodiment of this utility model, there are two locking holes, and the two locking holes are respectively connected to the two ball-head plungers.

[0016] This utility model has the following beneficial effects:

[0017] This utility model provides a tooling for press-fitting a differential elastic pin. The elastic force of a ball plunger compresses the elastic pin, thereby fixing it into the receiving hole of the press-fitting head. The press-fitting machine drives the connecting shaft, mounting base, and press-fitting head downwards, overcoming the elastic compressive force of the ball plunger on the elastic pin, thus pressing the elastic pin fixed inside the press-fitting head into the pre-drilled hole in the differential. This tooling, with its clearance notch, allows the press-fitting head to avoid interference with the differential housing during pressing, ensuring smooth press-fitting of the elastic pin into the pre-drilled hole in the differential housing. Furthermore, the clearance notch is adaptable to the shape of differential housings of different sizes, allowing the press-fitting head to be compatible with differentials of various sizes, thus expanding the applicability of this tooling for press-fitting differential elastic pins. This fixture uses fasteners within the locking holes to abut against the side of the ball plunger, thus locking the ball plunger securely within the press-fit head. This prevents the ball plunger from loosening or falling out due to repeated contact between the elastic pin and the ball plunger, ensuring the press-fit head effectively secures the elastic pin. Furthermore, the sensor's detection light at the second detection hole of the fixture passes sequentially through the second and first detection holes into the receiving hole, detecting the presence of the elastic pin. This prevents damage to the press-fit head or differential housing caused by pressing the differential without an elastic pin, ensuring the accuracy of the press-fit. Therefore, this fixture can be used with a press-fitting machine to smoothly press the elastic pin into the pre-drilled holes in the differential housing, significantly improving the efficiency of differential elastic pin installation and meeting the high-efficiency assembly requirements of differential assembly lines. Attached Figure Description

[0018] Figure 1 A perspective view of the tooling used for press-fitting the differential elastic pin provided by this utility model.

[0019] Figure 2 This is another perspective view of the tooling used for the differential elastic pin press-fitting provided by this utility model.

[0020] Figure 3 A perspective view of the elastic pin fixed inside the press head provided by this utility model.

[0021] Figure 4 A perspective view of the pressing head provided by this utility model.

[0022] Figure 5 This is a side view of the pressing head provided by this utility model.

[0023] Figure 6 A perspective view of the differential provided by this utility model.

[0024] In the diagram: 1. Press-fit head; 11. Press-fit head body; 12. Clearance notch; 13. Ball plunger; 14. Locking hole; 15. First inspection hole; 16. Connecting seat; 17. Chamfer; 18. Receiving hole; 2. Mounting seat; 3. Connecting shaft; 4. Mounting bracket; 41. Second inspection hole; 5. Differential; 51. Reserved hole; 6. Spring pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, 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 utility model based on the specific circumstances.

[0027] 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.

[0028] like Figures 1 to 6As shown, this utility model provides a tooling for press-fitting a differential elastic pin, including a press-fitting head 1. The press-fitting head 1 includes a press-fitting head body 11. One side of the press-fitting head body 11 is provided with a clearance notch 12, a receiving hole 18 for accommodating the elastic pin 6, and a first detection hole 15 communicating with the receiving hole 18. A ball plunger 13 extending into the receiving hole 18 is installed inside the press-fitting head body 11. The elastic pin 6 is embedded in the receiving hole 18 and abuts against the end face of the ball plunger 13. A locking hole 14 communicating with the ball plunger 13 is opened at the end of the press-fitting head body 11. A fastener for locking the ball plunger 13 is provided in the locking hole 14.

[0029] In some embodiments, the clearance notch 12 is adapted to the shape of the differential 5 housing.

[0030] In this embodiment, when the pressing head 1 presses the elastic pin 6 into the reserved hole 51 of the differential 5, the clearance notch 12 of the pressing head 1 is adapted to the shape of the differential 5 housing. The clearance notch 12 allows the pressing head 1 to avoid interference with the differential 5 housing during pressing, thus ensuring the elastic pin is successfully pressed into the reserved hole 51 of the differential housing. Furthermore, the clearance notch 12 is adaptable to the shape of differential 5 housings of different sizes, allowing the pressing head 1 to accommodate differentials of different sizes, thereby improving the applicability of the tooling used for pressing the differential elastic pin.

[0031] In some embodiments, the fastener in the locking hole 14 abuts against the side of the ball plunger 13.

[0032] By having the fastener inside the locking hole 14 abut against the side of the ball plunger 13, the ball plunger 13 can be locked inside the press head 1, preventing the elastic pin 6 from contacting the ball plunger 13 multiple times, which could cause the ball plunger 13 to loosen or fall off, thus ensuring the fixing effect of the press head 1 on the elastic pin 6.

[0033] In some embodiments, the end of the receiving hole 18 is provided with a chamfer 17.

[0034] In this embodiment, the chamfer 17 provides a guide for the insertion of the elastic pin 6 into the receiving hole 18, facilitating the insertion of the elastic pin 6.

[0035] In some embodiments, a connecting seat 16 is provided on the side of the pressing head body 11 away from the clearance notch 12, the connecting seat 16 is connected to a mounting seat 2, the mounting seat 2 is connected to a connecting shaft 3, and the connecting shaft 3 is connected to a pressing machine.

[0036] In this embodiment, the press machine is fixedly connected to the connecting shaft 3. The press machine drives the connecting shaft 3, the mounting base 2, and the press head 1 to press down, thereby pressing the elastic pin 6 fixed inside the press head 1 into the reserved hole 51 provided in the differential 5.

[0037] Optionally, the connecting seat 16 is a flange structure.

[0038] In some embodiments, the mounting base 2 is fixedly mounted with a mounting bracket 4, the mounting bracket 4 is provided with a second detection hole 41, the second detection hole 41 is aligned with the first detection hole 15, and a sensor is installed in the second detection hole 41. The sensor is used to detect whether there is an elastic pin 6 in the receiving hole 18.

[0039] Optionally, there are two of each of the second detection holes 41 and the first detection hole 15, and the line connecting the two second detection holes 41 passes through the first detection hole 15 and the receiving hole 18 of the pressing head 1.

[0040] In this embodiment, since the line connecting the two second detection holes 41 passes through the first detection hole 15 and the receiving hole 18 of the pressing head 1, the detection light from the sensor at the second detection hole 41 can pass through the second detection hole 41 and the first detection hole 15 in sequence and enter the receiving hole 18. This allows the detection of whether there is an elastic pin 6 in the receiving hole 18, thus preventing damage to the pressing head 1 or the housing of the differential 5 caused by pressing the differential 5 without a fixed elastic pin 6 in the pressing head 1, and ensuring the accuracy of tooling pressing.

[0041] Optionally, there are two ball plungers 13, which are disposed on both sides of the receiving hole 18, and the two ball plungers 13 together fix the elastic pin 6 in the receiving hole 18.

[0042] Optionally, there are two locking holes 14, and the two locking holes 14 are respectively connected to the two ball-head plungers 13.

[0043] In this embodiment, the elastic pin 6 in the receiving hole 18 is fixed by two ball plungers 13, and the two ball plungers 13 are locked by fasteners in the two locking holes 14 respectively, thereby ensuring the fixing effect of the ball plungers 13 on the elastic pin 6.

[0044] The tooling for press-fitting the elastic pin of a differential provided by this utility model uses the elastic force of the ball plunger 13 to press the elastic pin 6, thereby fixing the elastic pin 6 in the receiving hole 18 of the press-fitting head 1. The press-fitting machine drives the connecting shaft 3, the mounting base 2, and the press-fitting head 1 to press down, overcoming the elastic pressing force of the ball plunger 13 on the elastic pin 6, thereby pressing the elastic pin 6 fixed in the press-fitting head 1 into the reserved hole 51 of the differential 5. This tooling, through the clearance notch 12, allows the press-fitting head 1 to avoid the housing of the differential 5 during the pressing process, avoiding interference between the press-fitting head 1 and the differential 5, thus enabling the elastic pin to be successfully pressed into the reserved hole of the differential housing; at the same time, the clearance notch 12 can be adapted to the shape of the housing of the differential 5 of different sizes and specifications, so that the press-fitting head 1 can be adapted to differentials 5 of different sizes and specifications, thereby improving the applicability of the tooling for press-fitting the elastic pin of the differential. This fixture uses fasteners within the locking hole 14 to abut against the side of the ball plunger 13, thereby locking the ball plunger 13 within the press-fit head 1. This prevents the elastic pin 6 from repeatedly contacting the ball plunger 13, which could lead to loosening or falling off, thus ensuring the press-fit head 1's effective fixation of the elastic pin 6. Furthermore, the sensor's detection light at the second detection hole 41 of this fixture can sequentially pass through the second detection hole 41 and the first detection hole 15 into the receiving hole 18, detecting the presence of the elastic pin 6 within the receiving hole 18. This prevents damage to the press-fit head 1 or the differential 5 housing caused by pressing the differential 5 without a fixed elastic pin 6 within the press-fit head 1, ensuring the accuracy of the press-fit. Therefore, this fixture can be used in conjunction with a press-fitting machine to smoothly press the elastic pin into the pre-drilled hole 51 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.

[0045] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tool for press fitting a differential spring pin, characterized by, The device includes a press-fitting head, which comprises a press-fitting head body. One side of the press-fitting 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 press-fitting 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 provided at the end of the press-fitting head body. A fastener for locking the ball-head plunger is provided in the locking hole.

2. The tooling for pressing a differential spring pin according to claim 1, characterized in that, The clearance notch is adapted to the shape of the differential housing.

3. The tool for press fitting a flexible pin of a differential according to claim 1, wherein The fastener inside the locking hole abuts against the side of the ball-head plunger.

4. The tool for press fitting a flexible pin of a differential according to claim 1, wherein The end of the receiving hole is chamfered.

5. The tooling for pressing a differential spring pin according to claim 1, characterized in that, A connecting seat is provided on the side of the pressing head body away from the clearance notch. The connecting seat is connected to a mounting seat, and the mounting seat is connected to a connecting shaft. The connecting shaft is connected to the pressing machine.

6. A press tool for press fitting a flexible pin of a differential according to claim 5, wherein The connecting seat is a flange structure.

7. A tool for press fitting a resilient pin of a differential according to claim 5, wherein The mounting base is fixedly mounted with a mounting bracket, which is provided with a second detection hole. The second detection hole is aligned with the first detection hole, and a sensor is installed in the second detection hole. The sensor is used to detect whether there is a resilient pin in the receiving hole.

8. The tooling for pressing a differential spring pin according to claim 7, characterized in that, 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 pressing head.

9. The tooling for pressing a differential spring pin according to claim 1, characterized in that, There are two ball-head plungers, which are disposed on both sides of the receiving hole, and the two ball-head plungers together fix the elastic pin in the receiving hole.

10. A tool for press fitting a resilient pin of a differential according to claim 9, wherein There are two locking holes, and the two locking holes are respectively connected to the two ball-head plungers.

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