A cold forging device for locking differential connecting gears

Abstract

This utility model relates to the field of gear processing technology, and in particular to a cold forging forming device for locking differential connecting gears. The technical solution includes: a gear-cutting head movably mounted on a base, with a cutting head mounted at its output end; an indexing plate movably mounted below the gear-cutting head on the base; a Y-axis moving module mounted on the base, connected to an X-axis moving frame via a Y-axis moving frame and an X-axis moving module; a Z-axis moving module and a limiting module mounted on the X-axis moving frame; the gear-cutting head mounted on the Z-axis moving module via the Z-axis moving frame; a sliding groove and a first locking tooth on the X-axis moving frame, through which the limiting module is positioned; and a baffle on the Z-axis moving frame cooperating with the limiting module to restrict the movement distance of the gear-cutting head. This utility model, through the cooperation of a spring rod and the locking tooth, can quickly adjust the limiting position according to gears of different thicknesses, making the gear-cutting head suitable for processing gears of different specifications, thus possessing greater versatility and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically to a cold forging forming device for locking differential connecting gears. Background Technology

[0002] Cold forging is a general term for plastic forming processes such as cold die forging, cold extrusion, and cold heading. Cold forging is a forming process performed below the recrystallization temperature of the material; it is forging carried out below the recovery temperature. In production, forging without heating the blank is commonly referred to as cold forging. Cold forging materials are mostly aluminum and some alloys, copper and some alloys, low-carbon steel, medium-carbon steel, and low-alloy structural steel, which have relatively low deformation resistance and good plasticity at room temperature. Cold forgings have good surface quality and high dimensional accuracy, and can replace some cutting processes. Cold forging can strengthen the metal and improve the strength of the parts.

[0003] A search revealed that patent application number CN202420559181.0 discloses a cold forging forming machine for forging. Although the device can insert different types of molds for forging by setting a mold plate, it is relatively unsuitable for gears of different thicknesses and sizes. The molds still need to be changed manually, which is inconvenient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cold forging forming device for locking differential connecting gears, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A locking differential connecting gear cold forging forming device includes a base, a gear cutting head movably mounted on the base, a cutting head mounted on the output end of the gear cutting head, and an indexing plate movably mounted on the base below the gear cutting head.

[0007] A Y-axis moving module is mounted on the base, a Y-axis moving frame is movably mounted on the Y-axis moving module, an X-axis moving module is mounted on the Y-axis moving frame, an X-axis moving frame is movably mounted on the X-axis moving module, a limit module is mounted on one side of the X-axis moving frame, a Z-axis moving module is mounted on the X-axis moving frame, a Z-axis moving frame is mounted on the Z-axis moving module, and the gear cutting head is movably mounted on the Z-axis moving module via the Z-axis moving frame.

[0008] A sliding groove is provided through one side of the X-axis moving frame. First locking teeth are provided on both sides of the sliding groove of the X-axis moving frame. The limiting module is installed on the X-axis moving frame through the sliding groove and the first locking teeth. A baffle is provided on one side of the Z-axis moving frame. The gear cutting head is limited in movement distance by cooperating with the limiting module through the baffle of the Z-axis moving frame.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the indexing plate is equipped with a rotary motor, with a worm gear installed at the output end of the rotary motor and a worm wheel installed at the bottom of the indexing plate. The rotary motor drives the worm wheel to rotate through the worm gear.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] This worm gear drive structure, applied to the rotation control of the indexing plate, offers several advantages. First, the worm gear drive achieves a large transmission ratio, allowing a small rotation angle of the rotating motor to be converted into a precise, minute rotation angle of the indexing plate. This ensures high precision in indexing, crucial for accurately determining the position of each tooth in gear machining. Second, the worm gear drive is self-locking. When the rotating motor stops working, the worm will not reverse and drive the worm wheel to rotate due to external forces. This effectively prevents accidental rotation of the indexing plate during machining, ensuring the stability and reliability of the machining process and thus improving the quality of gear machining.

[0013] Furthermore, the limiting module is equipped with a position sensor, and a spring rod is installed on one end face of the limiting module. The limiting module is provided with a second locking tooth on the side surface where the spring rod is installed. The limiting module is installed on the X-axis moving frame by interlocking with the first locking tooth through the second locking tooth.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The position sensor enables the limit module to monitor the position of the gear-cutting head in real time. During the gear-cutting process, when the gear-cutting head moves to the preset position, the position sensor promptly feeds a signal back to the control system. The control system can then precisely control the movement of each moving module based on this signal, preventing excessive movement of the gear-cutting head and ensuring processing accuracy and consistency. The interlocking design between the second and first locking teeth provides a reliable positioning method for the limit module on the X-axis moving frame, ensuring that the limit module does not move arbitrarily during processing and guaranteeing the effectiveness of the limit function. Simultaneously, this interlocking method facilitates the installation and removal of the limit module, making maintenance and adjustment of the device easier.

[0016] Furthermore, the spring rod passes through the X-axis moving frame, and after the limiting module and the X-axis moving frame are engaged by the first and second locking teeth, the spring rod locks and limits the movement.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The spring rod enhances the stability of the connection between the limiting module and the X-axis moving frame. Based on the engagement of the first and second locking teeth, the spring rod provides additional locking force to prevent loosening between the locking teeth due to vibration or other reasons during processing. This ensures the limiting module remains in an accurate position, precisely limiting the movement range of the gear-cutting head. Furthermore, the elasticity of the spring rod allows the operator to easily disengage the locking teeth and adjust the position of the limiting module by simply overcoming the spring force, making the operation convenient and quick.

[0019] Furthermore, the Z-axis movable frame is equipped with a Z-axis movable plate and a fixed base, and a support spring is installed between the Z-axis movable plate and the fixed base.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The support spring plays a crucial role in buffering and shock absorption. During gear cutting, the interaction between the cutting head and the gear generates significant impact forces and vibrations. The support spring absorbs and disperses this energy, reducing the impact of vibration on the gear cutting head and the entire assembly. This not only protects the cutting tool and extends its service life but also improves the surface quality of the machined material, reducing problems such as increased tooth surface roughness caused by vibration. Furthermore, the support spring can compensate for dimensional errors during machining to a certain extent, allowing the gear cutting head to operate more stably.

[0022] Furthermore, the Z-axis moving plate meshes with the Z-axis moving module for transmission, and the gear cutting head is mounted on a fixed base.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The meshing transmission between the Z-axis moving plate and the Z-axis moving module enables stable and precise power transmission. Through this transmission method, the Z-axis moving module can accurately control the movement of the Z-axis moving plate, thereby driving the gear-cutting head mounted on the fixed base to move precisely in the Z-axis direction. This precise movement control allows the gear-cutting head to accurately adjust the cutting depth according to different processing requirements, meeting the processing needs of gears of different specifications. Furthermore, mounting the gear-cutting head on the fixed base ensures its stability during processing, reducing the impact of factors such as wobbling on processing accuracy, and improving the quality and efficiency of gear processing.

[0025] This utility model provides a cold forging forming device for locking differential connecting gears. It has the following beneficial effects:

[0026] The device is equipped with a Y-axis moving module, an X-axis moving module, and a Z-axis moving module. This multi-axis moving design enables precise movement of the gear cutting head in three-dimensional space, allowing for multi-directional machining of the locking differential connecting gears, improving machining accuracy and flexibility. For example, during gear cutting after cold forging, the position of the gear cutting head can be precisely adjusted according to different gear specifications and machining requirements, ensuring that the cutting head can accurately machine the gear. The moving modules are interconnected and cooperate through a moving frame, making the entire motion system more stable, reducing shaking and errors during machining, and further improving machining quality.

[0027] The indexing plate is equipped with a transmission structure consisting of a rotating motor, a worm gear, and a worm wheel. The rotating motor drives the worm wheel to rotate via the worm gear, and this transmission method has high transmission accuracy and self-locking properties. When machining gears, the indexing plate can accurately index the gears, ensuring the accurate machining position of each tooth, thereby improving the indexing accuracy and tooth profile quality of the gears.

[0028] The limit module is equipped with a position sensor that monitors the position of the gear-cutting head in real time. When the gear-cutting head moves to the preset position, the position sensor can promptly provide a signal to control the moving module to stop moving, avoiding over-processing and ensuring the accuracy and consistency of the processing. The limit module is limited by interlocking with the first locking tooth on the X-axis moving frame via a second locking tooth, and is further locked by a spring rod. This dual limiting and locking method effectively prevents the limit module from loosening or shifting during processing, ensuring the gear-cutting head is fixed in position and improving processing stability.

[0029] The X-axis moving frame is equipped with a sliding groove and a first locking tooth. The limiting module is mounted on the X-axis moving frame and limited by the sliding groove and the first locking tooth. This installation method not only facilitates the installation and disassembly of the limiting module, but also provides reliable positioning and support during processing, enabling the limiting module to function stably. The Z-axis moving frame is equipped with a Z-axis moving plate and a fixed seat, with a support spring installed between them. The support spring acts as a buffer and shock absorber, reducing the impact of vibrations generated during processing on the gear cutting head, protecting the cutting head and other components, and extending the service life of the device. The Z-axis moving plate meshes with the Z-axis moving module, enabling stable power transmission and ensuring smooth and reliable movement of the gear cutting head in the Z-axis direction. Simultaneously, the gear cutting head is mounted on the fixed seat, and the movement distance is limited by the cooperation of the baffle of the Z-axis moving frame and the limiting module, further improving the safety and reliability of the device. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] In the attached diagram:

[0032] Figure 1 This is a schematic diagram of the main appearance of this utility model;

[0033] Figure 2 This is a schematic diagram of the X-axis moving frame of this utility model;

[0034] Figure 3 This is a schematic diagram of the appearance of the limiting module of this utility model;

[0035] Figure 4 This is a schematic diagram of the indexing plate of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Base; 10. Indexing plate; 1001. Rotary motor; 1002. Worm gear; 1003. Worm wheel; 2. X-axis moving module; 3. Y-axis moving module; 4. Y-axis moving frame; 5. Limiting module; 501. Spring rod; 502. Second clasp tooth; 503. Position sensor; 6. X-axis moving frame; 601. First clasp tooth; 602. Slide groove; 7. Z-axis moving module; 8. Gear cutting head; 801. Cutting head; 9. Z-axis moving frame; 901. Z-axis moving plate; 902. Support spring; 903. Fixed seat; 904. Baffle. Detailed Implementation

[0038] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows: Example 1

[0040] A locking differential connecting gear cold forging forming device includes a base 1, on which a gear cutting head 8 is movably mounted. A cutting head 801 is mounted at the output end of the gear cutting head 8. An indexing plate 10 is movably mounted below the gear cutting head 8 on the base 1. The indexing plate 10 is equipped with a rotary motor 1001, and a worm gear 1002 is mounted at the output end of the rotary motor 1001. A worm wheel 1003 is mounted at the bottom end of the indexing plate 10. The rotary motor 1001 drives the worm wheel 1003 to rotate via the worm gear 1002. This worm gear 1002-worm wheel 1003 transmission structure, applied to the rotation control of the indexing plate 10, offers several advantages. First, the worm gear 1002-worm wheel 1003 transmission can achieve a large transmission ratio, allowing a small rotation angle of the rotary motor 1001 to be converted into a precise micro-angle rotation of the indexing plate 10. This ensures the high precision of the indexing of the indexing plate 10, which is crucial for accurately determining the position of each tooth in gear machining. Secondly, the worm gear 1002 and worm wheel 1003 transmission has self-locking properties. When the rotating motor 1001 stops working, the worm gear 1002 will not reverse and drive the worm wheel 1003 to rotate due to external force. This effectively prevents the indexing plate 10 from rotating unexpectedly during processing, ensuring the stability and reliability of the processing, and thus improving the quality of gear processing. A Y-axis moving module 3 is installed on the base 1, a Y-axis moving frame 4 is movably installed on the Y-axis moving module 3, and an X-axis moving module 2 is installed on the Y-axis moving frame 4. An X-axis moving frame 6 is movably mounted on module 2. A limit module 5 is mounted on one side of the X-axis moving frame 6. A position sensor 503 is installed on the limit module 5. A spring rod 501 is installed on one end face of the limit module 5. A second locking tooth 502 is provided on the surface of the limit module 5 on the side where the spring rod 501 is installed. The limit module 5 is mounted on the X-axis moving frame 6 by interlocking with the first locking tooth 601 through the second locking tooth 502. The position sensor 503 enables the limit module 5 to monitor the position information of the gear cutting head 8 in real time. During the gear cutting process, when the gear cutting head 8 moves to the preset position, the position sensor 503 will promptly feed back the signal to the control system. The control system can accurately control the movement of each moving module according to the signal, avoiding excessive movement of the gear cutting head 8 and ensuring processing accuracy and consistency. The interlocking design between the second locking tooth 502 and the first locking tooth 601 provides a reliable positioning method for the limiting module 5 on the X-axis moving frame, ensuring that the limiting module 5 will not move arbitrarily during processing and guaranteeing the effectiveness of the limiting function. At the same time, this interlocking method also facilitates the installation and disassembly of the limiting module 5, making maintenance and adjustment of the device easier. The spring rod 501 passes through the X-axis moving frame 6. After the limiting module 5 and the X-axis moving frame 6 are interlocked by the first locking tooth 601 and the second locking tooth 502, the spring rod 501 locks the limiting position. The spring rod 501 enhances the stability of the connection between the limiting module 5 and the X-axis moving frame.Based on the engagement of the first locking tooth 601 and the second locking tooth 502, the spring rod 501 provides additional locking force to prevent the locking teeth from loosening due to vibration or other reasons during processing. This ensures that the limiting module 5 is always in an accurate position, and that the movement range of the gear cutting head 8 is precisely limited. Furthermore, the elasticity of the spring rod 501 allows the operator to easily separate the locking teeth and adjust the position of the limiting module 5 by overcoming the elastic force of the spring rod 501. This makes the operation convenient and quick. A Z-axis moving module 7 is mounted on the X-axis moving frame 6, and a Z-axis moving frame 9 is mounted on the Z-axis moving module 7. The gear cutting head 8 is movably mounted on the Z-axis moving module 7 via the Z-axis moving frame 9. Example 2

[0041] To ensure that the gear cutting head 8 operates more stably during machining, for example, such as Figures 1 to 4 As shown, this utility model also includes: a sliding groove 602 extending through one side of the X-axis moving frame 6; first locking teeth 601 located on both sides of the sliding groove 602 on the X-axis moving frame 6; a limiting module 5 being limited and installed on the X-axis moving frame 6 via the sliding groove 602 and the first locking teeth 601; a baffle 904 on one side of the Z-axis moving frame 9; the gear cutting head 8 being limited in movement distance by the cooperation of the baffle 904 and the limiting module 5 on the Z-axis moving frame 9; the Z-axis moving frame 9 having a Z-axis moving plate 901 and a fixed seat 903; and a support spring 902 installed between the Z-axis moving plate 901 and the fixed seat 903; the installation of the support spring 902 plays an important role in buffering and shock absorption. During the gear cutting process, the interaction between the cutting head 801 and the gear will generate a large impact force and vibration; the support spring 902 can absorb and disperse this energy, reducing the impact of vibration on the gear cutting head 8 and the entire device. This not only protects the cutting tool of the gear cutting head 8 and extends its service life, but also improves the surface quality of the machined material and reduces problems such as increased tooth surface roughness caused by vibration. Simultaneously, the support spring 902 can compensate for dimensional errors during machining to a certain extent, allowing the gear cutting head 8 to work more stably during processing. The Z-axis moving plate 901 meshes with the Z-axis moving module 7 for transmission. The gear cutting head 8 is mounted on the fixed base 903, and the meshing transmission between the Z-axis moving plate and the Z-axis moving module enables stable and precise power transmission. Through this transmission method, the Z-axis moving module can accurately control the movement of the Z-axis moving plate, thereby driving the gear cutting head 8 mounted on the fixed base 903 to move precisely in the Z-axis direction. This precise movement control allows the gear cutting head 8 to accurately adjust the cutting depth according to different processing requirements, meeting the processing needs of gears of different specifications. Moreover, mounting the gear cutting head 8 on the fixed base 903 ensures the stability of the gear cutting head 8 during processing, reduces the impact of factors such as shaking on processing accuracy, and improves the quality and efficiency of gear processing.

[0042] It should be noted that the X-axis moving module, Y-axis moving module, and Z-axis moving module used to drive the gear cutting head 8 are all commercially available products and are existing technologies. The moving module has been disclosed in patent number 202022739117.5, and its working principle and internal structure are known to those skilled in the art. This utility model only utilizes the functions of the above-mentioned components without improving their internal structure, so it will not be described in detail here.

[0043] Working principle:

[0044] The cold-forged locking differential connecting gear is placed on the indexing plate 10 to prepare for subsequent gear cutting. Based on the specifications of the gear to be processed, such as thickness, number of teeth, and tooth profile, the motion parameters of each moving module are set, including the travel distance and speed of the Y, X, and Z axes. Simultaneously, the position of the limit module 5 is adjusted according to the gear thickness.

[0045] The limiting module 5 is equipped with a spring rod 501 and a second locking tooth 502, while the X-axis moving frame has a first locking tooth 601 and a sliding groove 602. The spring rod 501 is elastic; when the position of the limiting module 5 needs adjustment, the elastic force of the spring rod 501 is overcome, causing the second locking tooth 502 to separate from the first locking tooth 601. The limiting module 5 can then slide within the sliding groove 602, thus achieving position adjustment. After adjusting to the appropriate position, the spring rod 501 is released, and the second locking tooth 502 re-engages with the first locking tooth 601, fixing the limiting module 5 in the new position. The operator manually operates the limiting module 5 according to the thickness of the gear to be processed, allowing it to slide within the sliding groove 602 of the X-axis moving frame. Through observation and measurement, the limiting module 5 is moved to a position that matches the gear thickness, ensuring that the gear cutting head 8 can accurately cut the gear during processing, avoiding over- or under-processing due to improper positioning.

[0046] The indexing plate 10 is driven by a rotary motor 1001. A worm gear 1002 is installed at the output end of the rotary motor 1001, and a worm wheel 1003 is installed at the bottom of the indexing plate 10. After the rotary motor 1001 starts, it drives the worm wheel 1003 to rotate through the worm gear 1002. Due to the high precision and self-locking of the worm gear 1002 and worm wheel 1003 transmission, the indexing plate 10 can achieve precise indexing. The control system controls the rotary motor 1001 to rotate a certain angle according to the preset number of teeth and processing requirements, which drives the indexing plate 10 to rotate a corresponding angle, so that one tooth groove of the gear is accurately aligned with the cutting head 801 of the gear cutting head 8, thus positioning the gear cutting process.

[0047] The device achieves the movement of the gear-cutting head 8 in three-dimensional space through a Y-axis movement module, an X-axis movement module, and a Z-axis movement module. The Y-axis movement module drives the Y-axis movement frame, the X-axis movement module mounted on the Y-axis movement frame drives the X-axis movement frame, and the Z-axis movement module on the X-axis movement frame drives the Z-axis movement frame and the gear-cutting head 8. Through the coordinated movement of each movement module, the cutting head 801 of the gear-cutting head 8 can cut the gear according to a preset trajectory.

[0048] A baffle 904 is provided on one side of the Z-axis moving frame, and the gear cutting head 8 cooperates with the limiting module 5 through the baffle 904. The position sensor 503 on the limiting module 5 can monitor the position of the gear cutting head 8 in real time. When the gear cutting head 8 moves to a preset limit position, the position sensor 503 sends a signal, and the control system stops the movement of each moving module to prevent the gear cutting head 8 from exceeding the processing range and causing damage to the equipment and workpiece. During the gear cutting process, the position sensor 503 continuously monitors the position of the gear cutting head 8. Once the gear cutting head 8 approaches or reaches the position set by the limiting module 5, the position sensor 503 immediately feeds a signal back to the control system, and the control system responds quickly, stopping the movement of the corresponding moving module to ensure the safety and stability of the processing.

[0049] After machining one tooth groove, the indexing plate 10 rotates again to align the next tooth groove with the gear cutting head 8, and the above gear cutting process is repeated until the entire gear is machined. After machining is completed, the device stops operating, and the operator removes the machined gear from the indexing plate 10.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cold forging device for locking differential connecting gears, comprising a base (1), on which a gear cutting head (8) is movably mounted, a cutting head (801) is mounted at the output end of the gear cutting head (8), and an indexing plate (10) is movably mounted below the gear cutting head (8) on the base (1), characterized in that: A Y-axis moving module (3) is installed on the base (1), a Y-axis moving frame (4) is movably installed on the Y-axis moving module (3), an X-axis moving module (2) is installed on the Y-axis moving frame (4), an X-axis moving frame (6) is movably installed on the X-axis moving module (2), a limit module (5) is installed on one side of the X-axis moving frame (6), a Z-axis moving module (7) is installed on the X-axis moving frame (6), a Z-axis moving frame (9) is installed on the Z-axis moving module (7), and the gear cutting head (8) is movably installed on the Z-axis moving module (7) via the Z-axis moving frame (9). A sliding groove (602) is provided through one side of the X-axis moving frame (6). The X-axis moving frame (6) is provided with first locking teeth (601) on both sides of the sliding groove (602). The limiting module (5) is installed on the X-axis moving frame (6) through the sliding groove (602) and the first locking teeth (601). A baffle (904) is provided on one side of the Z-axis moving frame (9). The gear cutting head (8) cooperates with the limiting module (5) through the baffle (904) of the Z-axis moving frame (9) to limit the movement distance.

2. The lock differential connecting gear cold forging forming device according to claim 1, characterized in that: The indexing plate (10) is equipped with a rotary motor (1001), a worm gear (1002) is installed at the output end of the rotary motor (1001), and a worm wheel (1003) is installed at the bottom end of the indexing plate (10). The rotary motor (1001) drives the worm wheel (1003) to rotate through the worm gear (1002).

3. The lock differential connecting gear cold forging forming device according to claim 1, characterized in that: The limiting module (5) is equipped with a position sensor (503). A spring rod (501) is installed on one end face of the limiting module (5). A second locking tooth (502) is provided on the side surface of the limiting module (5) where the spring rod (501) is installed. The limiting module (5) is installed on the X-axis moving frame (6) by interlocking with the first locking tooth (601) through the second locking tooth (502).

4. The lock differential connecting gear cold forging forming device according to claim 3, characterized in that: The spring rod (501) passes through the X-direction moving frame (6). After the limiting module (5) and the X-direction moving frame (6) are engaged by the first locking tooth (601) and the second locking tooth (502), the spring rod (501) locks and limits the movement.

5. The locking differential coupling gear cold forging device according to claim 1, characterized in that: The Z-axis moving frame (9) is provided with a Z-axis moving plate (901) and a fixed seat (903), and a support spring (902) is installed between the Z-axis moving plate (901) and the fixed seat (903).

6. The locking differential coupling gear cold forging forming device according to claim 1, characterized in that: The Z-axis moving plate (901) meshes with the Z-axis moving module (7) for transmission, and the gear cutting head (8) is mounted on the fixed base (903).

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