A press quenching tool for a belt positioning boss synchronizer sliding sleeve

Abstract

The utility model discloses a kind of press quenching tool for synchronous device sliding sleeve with positioning boss, belong to the technical field of synchronous device sliding tooth cover, press quenching tool includes press quenching core shaft and feeding mechanism;The end of press quenching core shaft is provided with guide cone surface, the side surface of press quenching core shaft is formed with core shaft working surface, and the core shaft working surface is provided with several positioning boss grooves, and the other end of press quenching core shaft is provided with quenching oil circuit;Feeding mechanism includes feeding cylinder, and the lateral wall of feeding cylinder is provided with several positioning grooves, and the bottom of feeding cylinder is connected with mounting column;Feeding mechanism is installed in the feeding carousel of press quenching equipment by mounting column, and press quenching core shaft is installed in the press quenching station of press quenching equipment;Positioning groove is correspondingly arranged with positioning boss groove, so that the positioning boss of synchronous device sliding sleeve with positioning boss is transferred from feeding mechanism to press quenching core shaft, and correspondingly falls into positioning boss groove.The utility model can guarantee the effect of controlling thermal distortion of part in quenching process, realize automatic press quenching, and guarantee production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of synchronizer sliding tooth sleeve, specifically relating to a pressure quenching tool for synchronizer sliding sleeve with positioning boss. Background Technology

[0002] The synchronizer sliding sleeve is a key component in the synchronizer assembly. Its structure is a ring-shaped thin-walled part with an internal spline and an external shift fork groove. Both structures have high dimensional accuracy requirements and require a carburizing and quenching heat treatment process to obtain sufficient mechanical strength. If a direct carburizing and quenching process is used, the synchronizer sliding sleeve will have problems such as out-of-roundness and end face warping. Therefore, the industry generally adopts a carburizing followed by pressure quenching process to ensure the dimensional accuracy of the parts.

[0003] As an improvement, with the continuous optimization of the synchronizer sleeve structure, a structure with an internal spline and a slider groove driving boss, or simply a positioning boss, has emerged. The positioning boss is generally... The main functions of the circumferentially distributed, internally splined sliding sleeve with a sliding groove drive boss are: to drive the synchronous ring to rotate and achieve speed synchronization; to center and fix the synchronous ring in neutral; to transfer the initial shifting force to the synchronous ring; and to allow the sliding sleeve to pass over the synchronous ring and mesh with the gear teeth after synchronization. However, the introduction of the positioning boss structure has brought difficulties to automated pressure quenching. The main reason is that the positioning boss is higher than the internal spline, and the pressure quenching die relies on the supporting internal spline to control the deformation during the quenching process, which interferes with the positioning boss. Furthermore, the pressure quenching equipment does not have a spline positioning function, making it impossible to achieve automated pressure quenching of the sliding sleeve with the positioning boss. Therefore, currently, synchronizer sliding sleeves with positioning bosses cannot be pressure quenched using traditional pressure quenching dies because the positioning boss is higher than the internal spline, and the pressure quenching die relies on the supporting internal spline to control the deformation during the quenching process, which interferes with the positioning boss. Moreover, the pressure quenching equipment does not have a spline positioning function, making automated pressure quenching impossible. Utility Model Content

[0004] This utility model provides a pressure quenching fixture for a synchronizer sliding sleeve with a positioning boss. The purpose is to solve the problem that the current synchronizer sliding sleeve with a positioning boss is unable to be pressure quenched using traditional pressure quenching molds because the positioning boss is higher than the internal spline, and the pressure quenching mold relies on supporting the internal spline to control the deformation during the quenching process. Furthermore, the pressure quenching equipment does not have a spline positioning function, which makes it impossible to achieve automated pressure quenching.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a pressure quenching fixture for a synchronizer sleeve with a positioning boss, including a pressure quenching mandrel and a feeding mechanism; the pressure quenching mandrel is used to limit the shape of the synchronizer sleeve with the positioning boss during the quenching process; the feeding mechanism is used to accommodate and orient multiple synchronizer sleeves during automated pressure quenching; wherein: The press-quench mandrel is a hollow cylindrical structure. One end of the press-quench mandrel is provided with a guide cone surface. The side of the press-quench mandrel along its circumference forms a mandrel working surface. The mandrel working surface is provided with several positioning boss grooves. The other end of the press-quench mandrel is provided with a quenching oil passage. The feeding mechanism includes a feeding cylinder with several positioning slots on its side wall and a mounting column connected to one bottom end of the feeding cylinder. The feeding mechanism is mounted on the feeding turntable of the pressure quenching equipment via the mounting column, and the pressure quenching mandrel is mounted on the pressure quenching station of the pressure quenching equipment. The positioning groove and the positioning boss groove are set in correspondence so that the positioning boss of the synchronizer sleeve with the positioning boss can fall into the positioning boss groove when it is transferred from the feeding mechanism to the press-quenching mandrel.

[0006] In some implementations, the guide cone surface is integrally formed with the mandrel working surface, and the guide cone surface is used to guide the synchronizer sleeve with positioning boss to automatically center during placement.

[0007] In some embodiments, the positioning boss slots are evenly distributed circumferentially along the working surface of the mandrel, and the number of positioning boss slots is set to be consistent with the number of positioning bosses on the synchronizer sleeve with positioning bosses.

[0008] Furthermore, the width of the positioning boss groove is 0.1~0.5mm smaller than the closest distance between the splines on both sides of the positioning boss of the synchronizer sleeve with the positioning boss.

[0009] In some implementations, the diameter of the mandrel working surface is 0.01 to 0.05 mm larger than the minor diameter of the inner spline of the synchronizer sleeve with the positioning boss.

[0010] In some embodiments, the distance from the bottom of the positioning boss groove to the center is 0.2 to 0.6 mm smaller than the distance from the positioning boss to the center of the synchronizer sleeve with the positioning boss.

[0011] In some embodiments, the quenching oil circuit includes multiple round holes with a diameter of 5-6 mm and a number of 28-36 holes, which are evenly distributed along the circumference of the lower end face of the press-quenching mandrel.

[0012] In some implementations, the diameter of the feed cylinder is 0.5 to 1 mm smaller than the minor diameter of the inner spline of the synchronizer sleeve with the positioning boss.

[0013] In some embodiments, the width of the positioning groove is 0.5 to 1 mm larger than the width of the positioning boss of the synchronizer sleeve with positioning boss on the minor diameter circumference of the inner spline; the distance from the bottom of the positioning groove to the center is 0.5 to 1 mm smaller than the distance from the positioning boss of the synchronizer sleeve with positioning boss to the center.

[0014] In some embodiments, a plurality of positioning grooves are evenly distributed circumferentially along the side wall of the feed cylinder, and the distribution angle of the plurality of positioning grooves is consistent with the distribution angle of the positioning boss of the synchronizer sleeve with positioning boss.

[0015] This utility model discloses a pressure quenching fixture for a synchronizer sleeve with a positioning boss, which has the following beneficial effects.

[0016] This utility model discloses a pressure quenching fixture for a synchronizer sleeve with a positioning boss, comprising a pressure quenching mandrel and a feeding mechanism. The pressure quenching mandrel has a guide cone surface, a positioning boss groove on its working surface, and a quenching oil passage; the feeding mechanism has a feeding cylinder with a positioning groove and a mounting post. The positioning groove and the positioning boss groove are correspondingly arranged to ensure that the positioning boss accurately falls into the groove when the sleeve is transferred. This utility model's pressure quenching fixture, through the effective cooperation of the pressure quenching mandrel and the feeding mechanism, improves the problem of the inability to automatically pressure quench a synchronizer sleeve with a positioning boss. The positioning boss groove of the pressure quenching mandrel is specifically designed to accommodate the boss, avoiding interference, while the mandrel's working surface provides shape control, reducing quenching deformation. The positioning groove of the feeding mechanism ensures that the sleeve is correctly oriented before transfer, achieving automated feeding. The pressure quenching fixture of this invention improves the overall precision and efficiency of pressure quenching, is suitable for automated production lines, reduces manual intervention, and ensures the dimensional stability of parts. For synchronizer sliding gear sleeves with positioning bosses, it can not only ensure the effect of controlling thermal distortion of parts during quenching, but also realize automated pressure quenching, ensure production efficiency, and has good engineering applicability. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of a sliding toothed sleeve with a positioning boss synchronizer in a press-quenching tooling according to the present invention. Figure 2 This is a schematic diagram of the structure of a pressure quenching mandrel used in a pressure quenching fixture with a locating boss synchronizer sleeve according to the present invention. Figure 3 This is a three-dimensional and side view structural diagram of a feeding mechanism in a pressure quenching fixture with a locating boss synchronizer sleeve according to the present invention. Figure 4This is a top view schematic diagram of a feeding mechanism in a pressure quenching fixture with a locating boss synchronizer sleeve according to the present invention. Figure 5 This is a schematic diagram of the pressing and quenching tooling with a positioning boss sliding toothed sleeve for inserting into the pressing and quenching mandrel. Figure 6 This is a side and top view schematic diagram of a pressure quenching tool with a positioning boss and a synchronizer sliding sleeve for inserting a pressure quenching mandrel into a pressure quenching mandrel according to the present invention. Figure 7 This is a side view of a pressure quenching fixture with a positioning boss and a synchronizer sleeve, according to the present invention, when the sliding gear with the positioning boss is inserted into the feeding mechanism.

[0019] The attached diagram shows the following reference numerals: 1. Guide cone surface; 2. Mandrel working surface; 3. Positioning boss groove; 4. Quenching oil passage; 5. Feeding cylinder; 6. Positioning groove; 7. Mounting column. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] How to design a pressure quenching die for a synchronizer sliding gear sleeve with a positioning boss, which can not only ensure the control of thermal distortion of the parts during the quenching process, but also realize automated pressure quenching and ensure production efficiency.

[0027] like Figures 1-7 As shown, this utility model discloses a pressure quenching fixture for a synchronizer sleeve with a positioning boss, comprising a pressure quenching mandrel and a feeding mechanism; the pressure quenching mandrel is used to limit the shape of the synchronizer sleeve with the positioning boss during the quenching process; the feeding mechanism is used to accommodate and orient multiple synchronizer sleeves during automated pressure quenching; wherein: The pressure quenching mandrel is a hollow cylindrical structure. One end of the pressure quenching mandrel is provided with a guide cone surface 1. The side of the pressure quenching mandrel along its circumference forms a mandrel working surface 2. The mandrel working surface 2 is provided with several positioning boss grooves 3. The other end of the pressure quenching mandrel is provided with a quenching oil passage 4. The feeding mechanism includes a feeding cylinder 5, the side wall of which is provided with several positioning grooves 6, and a mounting column 7 is connected to one end of the bottom of the feeding cylinder 5; the feeding mechanism is installed on the feeding turntable of the pressure quenching equipment through the mounting column 7, and the pressure quenching mandrel is installed on the pressure quenching station of the pressure quenching equipment. The positioning groove 6 is set in correspondence with the positioning boss groove 3 so that the positioning boss of the synchronizer sleeve with the positioning boss can fall into the positioning boss groove 3 when it is transferred from the feeding mechanism to the press-quenching mandrel.

[0028] This utility model relates to a pressure quenching fixture with a locating boss synchronizer sliding sleeve, which can realize automated pressure quenching of the sliding toothed sleeve with the locating boss synchronizer. The pressure quenching fixture includes a pressure quenching mandrel with a locating boss groove 3. During the pressure quenching process, the locating boss falls into the locating boss groove 3, and the locating boss groove 3 controls the thermal distortion of the locating boss. The pressure quenching fixture also includes a feeding mechanism with a locating groove 6. During the production feeding process, the sliding toothed sleeve is inserted into the feeding mechanism, and the locating boss is located in the locating groove 6, ensuring that the orientation of the locating boss remains consistent throughout the automated pressure quenching transfer process.

[0029] This utility model's pressure-quenching mandrel adopts a hollow cylindrical structure and is equipped with a guide cone surface 1, a mandrel working surface 2, a positioning boss groove 3, and a quenching oil passage 4. This allows for precise shape control of the sliding sleeve during the quenching process, preventing roundness deviations and end face warping caused by thermal distortion. The feeding mechanism, through the cooperation of the feeding cylinder 5, positioning groove 6, and mounting column 7, achieves directional accommodation and precise positioning of multiple sliding sleeves during automated transfer. The corresponding arrangement of the positioning groove 6 and the positioning boss groove 3 ensures that the positioning boss accurately falls into the groove when the sliding sleeve is transferred from the feeding mechanism to the pressure-quenching mandrel, thereby avoiding interference problems and improving the stability of the pressure-quenching process. This pressure-quenching fixture has a compact structure, meets the requirements of automated production lines, improves the pressure-quenching efficiency and quality consistency of sliding sleeves with bosses, and provides reliable auxiliary support for the heat treatment process of key components of synchronizers.

[0030] The guide cone surface 1 of this utility model is integrally formed with the working surface 2 of the mandrel. The guide cone surface 1 is used to guide the synchronizer sleeve with positioning boss to automatically center when placed. Even if there is an initial centering deviation when placing the heated sleeve, the guide cone surface 1 can automatically guide the sleeve to fall smoothly into the working area of ​​the mandrel through its inclined structure, which reduces the risk of parts bumping or positioning failure due to inaccurate centering and improves the reliability of automated pressure quenching.

[0031] Furthermore, the positioning boss grooves 3 of this invention are evenly distributed circumferentially along the working surface 2 of the mandrel, and the number of positioning boss grooves 3 is set to be consistent with the number of positioning bosses on the synchronizer sleeve with positioning bosses. This ensures that each boss can obtain uniform support and constraint during the quenching process, avoiding deformation problems caused by uneven local stress, and is beneficial to mold maintenance.

[0032] Furthermore, in some practical working conditions, the width of the positioning boss groove 3 of this utility model is 0.1~0.5mm smaller than the closest distance between the splines on both sides of the positioning boss of the synchronizer sleeve with positioning boss. The diameter of the mandrel working surface 2 is 0.01~0.05mm larger than the minor diameter of the inner spline of the synchronizer sleeve with positioning boss. The distance from the bottom of the positioning boss groove 3 to the center is 0.2~0.6mm smaller than the distance from the positioning boss to the center of the synchronizer sleeve with positioning boss. By reasonably limiting the dimensions, this utility model makes the positioning of the boss in the groove more stable, preventing the slight displacement or rotation of the parts during quenching, and ensuring the dimensional stability after heat treatment; it also ensures close contact between the press-quenched mandrel and the synchronizer sleeve with positioning boss, providing uniform radial constraint during the quenching and cooling stage, and improving the assembly accuracy of the product.

[0033] In some embodiments, the quenching oil circuit 4 of this invention includes multiple circular holes, the diameter of which is set to 5-6 mm, and the number of circular holes is set to 28-36. The circular holes are evenly distributed along the circumference of the lower end face of the pressure quenching mandrel. The pressure quenching fixture of this invention ensures that the quenching oil flows uniformly upward from the lower end face of the mandrel, making the cooling rate of each part consistent and improving the uniformity and reliability of the heat treatment quality.

[0034] In some embodiments, the diameter of the feeding cylinder 5 of this invention is 0.5-1 mm smaller than the minor diameter of the inner spline of the synchronizer sleeve with positioning boss. The width of the positioning groove 6 is 0.5-1 mm larger than the width of the positioning boss of the synchronizer sleeve with positioning boss on the circumference of the minor diameter of the inner spline; the distance from the bottom of the positioning groove 6 to the center is 0.5-1 mm smaller than the distance from the positioning boss of the synchronizer sleeve with positioning boss to the center. Similar to the above, by limiting the size of the pressure quenching fixture, the feeding efficiency and centering accuracy are improved, ensuring that the positioning groove 6 ensures the accurate orientation of the sleeve in the feeding mechanism, thereby improving the accuracy and efficiency of the entire pressure quenching process.

[0035] Furthermore, in the pressure quenching fixture of this invention, several positioning grooves 6 are evenly distributed circumferentially along the side wall of the feeding cylinder 5, and the distribution angle of the positioning grooves 6 is consistent with the distribution angle of the positioning boss of the synchronizer sleeve with positioning boss. By evenly distributing the positioning grooves circumferentially along the side wall of the feeding cylinder and ensuring that the distribution angle is consistent with the sleeve boss, it is guaranteed that multiple sleeves maintain a uniform orientation in the feeding mechanism, reducing intermediate adjustment steps and improving the production efficiency of the automated production line.

[0036] The following detailed description of a pressure quenching fixture for a synchronizer sleeve with a positioning boss, based on specific embodiments, further illustrates this invention.

[0037] like Figure 1 The image shows a sliding toothed sleeve with locating bosses. There are three locating bosses, which are higher than the internal spline and are arranged in a certain shape. The locating bosses are evenly distributed around the circumference. The width of the locating bosses on the circumference of the minor diameter of the inner spline is d. The closest distance between the splines on both sides of the locating bosses is w. The diameter of the minor diameter of the inner spline is r. The distance from the locating bosses to the center of the circle is s.

[0038] like Figure 2 As shown, the pressure-quenching mandrel consists of a guide cone surface 1, a positioning boss groove 3, a mandrel working surface 2, and a quenching oil passage 4. The width of the positioning boss groove 3 is W, the distance from the bottom of the groove to the center is S1, and the diameter of the mandrel working surface 2 is R1. The guide cone surface 1 is on the top layer of the pressure-quenching mandrel. After the sliding gear sleeve is heated to complete austenitization, it is placed vertically downwards into the pressure-quenching mandrel. The function of the guide cone surface 1 is to ensure that the part can fall smoothly into the pressure-quenching mandrel even if it is not concentric with the mandrel. The main body of the mandrel working surface 2 is a cylindrical body, which is interference-fitted with the minor diameter of the spline inside the part. It limits the shape of the part during the pressure quenching process. The diameter R1 of the mandrel working surface 2 is 0.01-0.05mm larger than the minor diameter r of the spline inside the sliding gear sleeve, and the distance S1 from the bottom of the groove to the center is 0.2-0.6mm smaller than the distance s from the positioning boss to the center of the sliding gear sleeve. The positioning boss groove 3 is adopted along the working surface 2 of the mandrel. The evenly distributed positioning boss groove 3 has a groove width W that is 0.1-0.5mm smaller than the closest distance w between the splines on both sides of the positioning boss. The quenching oil circuit 4 is circumferentially distributed on the lower end face of the press-quenching mandrel. The quenching oil circuit 4 consists of 28-36 round holes with a diameter of 5-6mm. During quenching, the quenching oil flows from bottom to top through the oil circuit to quench the parts and obtain uniform quenching hardness.

[0039] like Figure 3 and Figure 4 As shown, the feeding mechanism of this utility model is a cylindrical structure, consisting of a feeding cylinder 5, a positioning groove 6, and a mounting column 7. The diameter of the feeding cylinder 5 is R2, the width of the positioning groove 6 is D, and the distance from the bottom of the positioning groove 6 to its center is S2. The diameter R2 of the feeding cylinder 5 is 0.5-1mm smaller than the minor diameter r of the inner spline of the gear sleeve. The width D of the positioning groove 6 is 0.5-1mm larger than the width d of the positioning boss on the circumference of the minor diameter of the inner spline. The distance S2 from the bottom of the positioning groove 6 to its center is 0.5-1mm smaller than the distance s from the positioning boss of the sliding gear sleeve to its center. The positioning groove adopts... The evenly distributed arrangement. The mounting column 7 is inserted into the inner hole of the corresponding feeding turntable of the pressure quenching machine to complete the installation of the feeding mechanism, which can rotate around the center.

[0040] like Figure 5 and Figure 6 As shown, during pressure quenching, the sliding gear with positioning boss is inserted into the pressure quenching mandrel through the transfer mechanism, and the positioning boss falls into the positioning boss groove 3.

[0041] like Figure 7 As shown, during the automatic pressing and quenching of parts, the positioning boss of the part is aligned with the positioning groove 6 and loaded into the feeding mechanism, and more parts are loaded in sequence until the part is full.

[0042] During automated press quenching, first install the press quenching shaft and the feeding mechanism, then load the parts into the feeding mechanism. By adjusting and rotating the feeding mechanism at a reasonable angle, the positioning boss can accurately fall into the positioning boss groove 3 when the parts are transferred from the feeding mechanism to the press quenching mandrel. After the adjustment is completed, the automatic press quenching can be completed normally.

[0043] In use, the pressure quenching fixture of this invention first installs the pressure quenching mandrel and the feeding mechanism in the corresponding positions on the pressure quenching equipment. Then, the sliding gear sleeve with the positioning boss is inserted into the feeding mechanism. During installation, the positioning boss of the part is placed into the positioning groove 6, and multiple parts are loaded until the groove is full. After adjustment, the angle of the feeding mechanism is rotated appropriately so that when the part is transferred from the feeding mechanism to the pressure quenching mandrel, the positioning boss accurately falls into the positioning boss groove 3. After adjustment, automatic pressure quenching can be completed normally. This invention enables automated pressure quenching equipment without spline positioning function to automatically quench sliding gear sleeves with positioning bosses.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Anyone skilled in the art can smoothly implement the present utility model according to the description and above. Any modifications, alterations, and equivalent changes made based on the disclosed technical content are equivalent embodiments of the present utility model. At the same time, any modifications, alterations, and equivalent changes made to the above embodiments based on the essential technology of the present utility model are still within the protection scope of the technical solution of the present utility model.

Claims

1. A press quench tooling for a band positioning boss synchronizer sliding sleeve, characterized by, The system includes a pressure-quenching mandrel and a feeding mechanism; the pressure-quenching mandrel is used for shape-limiting control of the synchronizer sleeve with positioning boss during the quenching process; the feeding mechanism is used to accommodate and orient multiple synchronizer sleeves during automated pressure quenching; wherein: The pressure quenching mandrel is a hollow cylindrical structure. One end of the pressure quenching mandrel is provided with a guide cone surface (1). The side of the pressure quenching mandrel along its circumference forms a mandrel working surface (2). The mandrel working surface (2) is provided with several positioning boss grooves (3). The other end of the pressure quenching mandrel is provided with a quenching oil passage (4). The feeding mechanism includes a feeding cylinder (5), the side wall of which is provided with a number of positioning grooves (6), and a mounting column (7) is connected to one end of the bottom of the feeding cylinder (5); the feeding mechanism is installed on the feeding turntable of the pressure quenching equipment through the mounting column (7), and the pressure quenching mandrel is installed on the pressure quenching station of the pressure quenching equipment; The positioning groove (6) is provided in correspondence with the positioning boss groove (3) so that the positioning boss of the synchronizer sleeve with the positioning boss can fall into the positioning boss groove (3) when it is transferred from the feeding mechanism to the press-quenching mandrel.

2. The press-quenching fixture for a synchronizer sleeve with a positioning boss according to claim 1, characterized in that, The guide cone surface (1) is integrally formed with the spindle working surface (2). The guide cone surface (1) is used to guide the synchronizer sleeve with positioning boss to automatically center when placed.

3. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, The positioning boss groove (3) is evenly distributed around the working surface (2) of the mandrel, and the number of the positioning boss groove (3) is set to be consistent with the number of positioning bosses of the synchronizer sleeve with positioning boss.

4. The press quench tooling for a band positioned boss synchronizer slider of claim 3, wherein, The width of the positioning boss groove (3) is 0.1~0.5mm smaller than the closest distance between the splines on both sides of the positioning boss of the synchronizer sleeve with positioning boss.

5. The press-quenching fixture for a synchronizer sleeve with a positioning boss according to claim 1, characterized in that, The diameter of the working surface (2) of the mandrel is 0.01~0.05mm larger than the minor diameter of the inner spline of the synchronizer sleeve with positioning boss.

6. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, The distance from the bottom of the positioning boss groove (3) to the center is 0.2~0.6mm smaller than the distance from the positioning boss to the center of the synchronizer sleeve with the positioning boss.

7. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, The quenching oil circuit (4) includes multiple round holes, the diameter of which is set to 5~6mm, and the number of which is set to 28~36. The round holes are evenly distributed along the circumference of the lower end face of the press-quenching mandrel.

8. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, The diameter of the feed cylinder (5) is 0.5~1mm smaller than the minor diameter of the inner spline of the synchronizer sleeve with positioning boss.

9. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, The width of the positioning groove (6) is 0.5~1mm larger than the width of the positioning boss of the synchronizer sleeve with positioning boss on the inner spline minor diameter circumference; the distance from the bottom of the positioning groove (6) to the center is 0.5~1mm smaller than the distance from the positioning boss of the synchronizer sleeve with positioning boss to the center.

10. The press quench tooling for a band positioned boss synchronizer slider of claim 1, wherein, Several positioning grooves (6) are evenly distributed along the circumference of the side wall of the feed cylinder (5), and the distribution angle of the several positioning grooves (6) is consistent with the distribution angle of the positioning boss of the synchronizer sleeve with positioning boss.

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