Bearing outer ring compression quenching die

Abstract

The present invention relates to a bearing outer ring die quenching die, comprising an upper die and a lower die, wherein the upper die comprises an upper die plate and an upper cone die connected to the upper die plate, the lower die comprises a lower die plate and a lower cone die connected to the lower die plate, a sliding column is arranged on the upper die plate, a sliding hole is arranged on the upper cone die, a thrust spring is arranged between the upper die plate and the upper cone die, a limiting protrusion is arranged on the sliding column for preventing the upper cone die from being completely disengaged from the sliding column, the sum of the heights of the upper cone die and the lower cone die is less than the height of the product, a buffer gap is arranged between the upper cone die and the upper die plate, and a boss for contacting the end face of the product is arranged on the upper cone die and the lower die plate. The thrust spring will transfer the force on the hydraulic device to the product after buffering, so that the product itself will not be directly subjected to the force of the hydraulic device, and after buffering, the product will not be easily crushed when under pressure, thereby ensuring the product yield.

Description

Technical Field

[0001] The invention relates to bearing heat treatment equipment, in particular to a bearing outer ring pressing die quenching die. Background Art

[0002] During the bearing processing, the inner and outer rings of the bearing need to be quenched. In particular, with the multiple speed increases of my country's railways, the requirements for railway bearings are getting higher and higher. Due to the large distortion and severe shrinkage of bearing steel during quenching, a large number of bearings are scrapped in subsequent processing.

[0003] The patent application with authorization announcement number CN 205821400 U discloses a quenching die for the carburized steel outer ring of a double-row tapered roller bearing, which includes a base and a cone. The cone is arranged above the base, the cone cooperates with the base stop and the cone and the base are connected by screws, a gasket is arranged between the cone and the base, and the edge of the base forms a boss. In the present invention, the base and the cone are designed as a separate structure, and the purpose of controlling the product size is achieved by arranging a gasket between the base and the cone.

[0004] However, in actual production, the above-mentioned mold will be provided with a base and a cone at both ends of the product, and then the cone will be inserted from both ends of the product. In actual use, it is necessary to use a hydraulic device to drive the base and the cone to move. In order to provide sufficient radial force to the product, the hydraulic device usually needs to have a force of 3 to 5 tons, and the sum of the heights of the two cones is less than the height of the product. Therefore, when the base and the cone are driven to move by the hydraulic device, it is easy for the product sandwiched between the two bases to be subjected to a large force, resulting in extrusion deformation of the product, which reduces the product yield. Summary of the invention

[0005] The object of the present invention is to provide a bearing outer ring compression quenching die, which has the advantage of not easily causing extrusion deformation of the product.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a bearing outer ring die quenching die, comprising an upper die and a lower die, the upper die comprising an upper die plate and an upper cone die connected to the upper die plate, the lower die comprising a lower die plate and a lower cone die connected to the lower die plate, the upper die plate is provided with a sliding column, the upper cone die is provided with a sliding hole, the sliding column and the sliding hole are slidably matched, a thrust spring is provided between the upper die plate and the upper cone die for making the upper cone die always have a tendency to move away from the upper die plate side, a limiting protrusion is provided on the sliding column for preventing the upper cone die from being completely disengaged from the sliding column, the sum of the heights of the upper cone die and the lower cone die is less than the height of the product, a buffer gap is provided between the upper cone die and the upper die plate, and bosses for contacting the end face of the product are provided on the upper cone die and the lower die plate.

[0007] Through the above technical scheme, when in use, the product is placed between the upper mold and the lower mold, and then the lower mold is driven to move and the lower cone mold enters the product and fits with the inner wall of the product. At this time, the boss on the lower template will contact the lower end surface of the product, and then the upper mold is driven to move into the product. When the boss on the upper cone mold contacts the upper end surface of the product, the cone surface of the upper cone mold just fits with the inner wall of the product. At this time, since the upper mold is driven to move by the hydraulic device, it is not easy to judge whether the upper mold has moved into place. Therefore, the upper mold will continue to move a distance under the force of the hydraulic device. At this time, since the product is tightly pressed against the upper cone mold, the upper cone mold will stop moving, and the upper template continues to move toward the product end. At this time, the thrust spring will be gradually compressed. In this process, the thrust spring will transmit the force on the hydraulic device to the product after buffering, so that the product itself will not be directly affected by the force of the hydraulic device. After buffering, the product will not be easily crushed when under pressure, thereby ensuring the yield rate of the product.

[0008] Preferably, a positioning hole is provided on the lower cone mold, and a positioning column cooperating with the positioning hole is provided on the upper cone mold. The positioning column is connected to the sliding column, and the central axes of the positioning hole and the positioning column coincide with the central axis of the upper cone mold or the lower cone mold.

[0009] Through the above technical solution, in order to prevent the product from being dislocated during quenching, it is necessary to keep the upper cone die and the lower cone die concentric with the product when pressing the product, and through the positioning holes and positioning columns, the central axis of the upper cone die and the central axis of the lower cone die can be kept coincident when pressing the product, thereby preventing the product from being dislocated.

[0010] Preferably, an adjustment gap of 1.5-3 mm is provided between the sliding hole and the sliding column.

[0011] Through the above technical scheme, since the upper mold and the lower mold need to be combined and disengaged during use, and the existing technology is difficult to ensure that the upper cone mold and the lower cone mold remain completely concentric, in order to avoid the upper cone mold and the lower cone mold from getting stuck when combined, an adjustment gap is set between the sliding hole and the sliding column. When the upper cone mold and the lower cone mold are relative to each other, if the positioning hole and the positioning column are not concentric, the upper cone mold will be horizontally displaced on the sliding column due to the existence of the adjustment gap, and finally the positioning column can be inserted into the positioning hole. Therefore, the upper cone mold and the lower cone mold are not prone to getting stuck or stuck after being combined, which is convenient for demolding in the later stage and improves the service life of the mold.

[0012] Preferably, the upper cone die is detachably provided with an abutment block facing the lower cone die end for abutting against the end surface of the lower cone die.

[0013] Through the above technical scheme, in order to avoid large forces on the end faces of the products, it is necessary to provide a force transmission component between the upper cone die and the lower cone die. The force on the upper cone die can be directly transmitted to the lower cone die through the resistance block. By setting the height of the resistance block, the magnitude of the force acting on the end faces of the products by the upper cone die and the lower cone die can be controlled, thereby ensuring that the products are not easily deformed during quenching, improving the yield rate of the products, and facilitating further processing of the products at a later stage.

[0014] Preferably, it also includes a mold frame, on which a first driving mechanism for driving the upper mold to move is provided, a demolding rod is connected to the mold frame, and a notch for the demolding rod to pass through is provided on the upper mold plate, the demolding rod is away from the mold frame end and is opposite to the product end face and is used to contact the product end face, and the distance between the end of the demolding rod and the product end face is less than the maximum movement stroke of the upper cone mold.

[0015] Through the above technical solution, since the product is subjected to a large force during quenching and the product will shrink due to cold during quenching, in order to avoid the product being stuck on the upper cone die, a demolding rod is provided on the mold frame. If the product is stuck on the upper cone die, the product will move upward together with the upper cone die, while the position of the demolding rod remains unchanged. After the product moves a certain distance, it will contact the end of the demolding rod, and finally the product will be separated from the upper cone die under the action of the demolding rod. Therefore, there is no need for workers to remove the product from the cone die in the later stage, which is convenient for later demolding.

[0016] Preferably, a plurality of flow channels are arranged on the conical surfaces of the upper cone mold and the lower cone mold, and the flow channels extend from one end of the upper cone mold or the lower cone mold to the other end. The lower mold plate is provided with an inlet for cooling liquid to enter the flow channel, and the upper cone mold is provided with an upper outlet for cooling liquid in the flow channel to flow out.

[0017] Through the above technical scheme, in order to make the product evenly quenched during quenching, a plurality of flow channels are arranged on the upper cone die and the lower cone die. When in use, cooling liquid is introduced into the flow channel from the inlet. At this time, the cooling liquid will enter between the product and the flow channel from multiple flow channels and make the cooling liquid contact with the inner wall of the product. When the cooling liquid fills the flow channel, it will flow out from the upper outlet, thereby making the outer wall of the product contact with the cooling liquid, and finally completing the quenching. During the entire quenching process, the product is in good contact with the cooling liquid, and the product is cooled evenly, so the quenching effect is better.

[0018] Preferably, it also includes a base, the base is provided with a accommodating cavity, the lower mold is located in the accommodating cavity, the height of the base is less than the depth of the accommodating cavity, the bottom of the accommodating cavity is provided with a second driving mechanism for driving the lower film to move out of the accommodating cavity, a cooling sleeve is fixed on the upper mold plate, the cooling sleeve is arranged around the upper cone mold, when the conical surfaces of the upper cone mold and the lower cone mold are both in contact with the inner wall of the product, the cooling sleeve is away from the upper mold plate end and in contact with the end face of the base, and a cooling gap is arranged between the cooling sleeve and the product.

[0019] Through the above technical solution, in order to achieve a better quenching effect on the product, a cooling jacket is fixed on the upper mold plate. When the upper mold and the lower mold are inserted into the product, the bottom end of the cooling jacket will fit with the base, and then the cooling liquid will be injected into the flow channel through the inlet. When the cooling liquid fills the flow channel, it will flow between the cooling jacket and the product through the upper outlet, and finally fill the cooling gap. At this time, the inside and outside of the product will be covered with cooling liquid, so that the quenching effect of the product will be better.

[0020] Preferably, the lower template is provided with a lower outlet for the cooling liquid in the flow channel to flow to the outside of the product.

[0021] Through the above technical scheme, in order to enable the outside and the inside of the product to be cooled at the same time, a lower outlet is provided on the lower template. When the cooling liquid enters the flow channel, a part of the cooling liquid will enter the cooling gap through the lower outlet, and the other part will enter the flow channel. Because a communicating vessel is formed between the flow channel and the cooling gap, the cooling liquid will rise in the cooling gap and the flow channel at the same time, so that the inner and outer walls of the product are immersed in the cooling liquid at the same time, ensuring that the product is cooled evenly, so that the quenching effect of the product is better.

[0022] Preferably, an injection port is provided on the upper mold plate, the interior of the sliding column is hollow, the injection port is communicated with the interior of the sliding column, and a communication port communicated with the interior of the sliding column is provided on the end surface of the upper cone mold facing the lower cone mold.

[0023] Through the above technical solution, in order to further improve the quenching efficiency and quenching effect of the product, an injection port is provided on the upper cone mold. When in use, cooling liquid is injected into the interior of the product through the injection port and the inlet at the same time. At this time, the cooling liquid will quickly fill the interior of the product and the cooling gap, so that the product is completely immersed in the cooling liquid in a very short time, thereby improving the quenching efficiency and achieving a better quenching effect.

[0024] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0025] 1. Through the buffering of the thrust spring, the product will not be easily crushed when under pressure, thus ensuring the product yield;

[0026] 2. By setting an adjustment gap between the sliding hole and the sliding column, the upper cone die can float a certain distance in the horizontal direction, which is convenient for pairing the upper cone die with the lower cone die and avoids the situation where the upper cone die and the lower cone die are stuck to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a first structural schematic diagram of the embodiment, mainly showing the structure before mold closing;

[0029] Figure 2 for Figure 1 The enlarged view at point A in the middle mainly highlights the matching structure between the upper cone die and the upper die plate;

[0030] Figure 3 This is a second structural schematic diagram of the embodiment, mainly highlighting the structure when the lower mold is inserted into the product;

[0031] Figure 4 This is a third structural schematic diagram of the embodiment, mainly highlighting the structure when both the upper mold and the lower mold are inserted into the product;

[0032] Figure 5 It is a schematic diagram of the structure of the upper die and the lower die.

[0033] : 1. upper mold; 111. upper mold plate; 112. upper cone mold; 2. lower mold; 211. lower mold plate; 212. lower cone mold; 3. sliding column; 4. sliding hole; 5. thrust spring; 6. limiting protrusion; 7. buffer gap; 8. boss; 9. positioning hole; 10. positioning column; 11. resistance block; 12. mold frame; 13. demoulding rod; 14. notch; 15. first driving mechanism; 16. runner; 17. inlet; 18. upper outlet; 19. base; 20. accommodating chamber; 21. second driving mechanism; 22. cooling jacket; 23. cooling gap; 24. lower outlet; 25. injection port; 26. conduction port; 27. adjustment gap. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] like Figure 1 , 2As shown, a bearing outer ring compression quenching die comprises an upper die 1, a die frame 12 for fixing the upper die 1, a lower die 2 and a base 19 for fixing the lower die 2, a first driving mechanism 15 is arranged between the die frame 12 and the upper die 1, an accommodating cavity 20 is arranged on the base 19, the lower die 2 is located in the accommodating cavity 20, and the height of the lower die 2 is less than the depth of the accommodating cavity 20, a second driving mechanism 21 is arranged at the bottom of the accommodating cavity 20, the first driving mechanism 15 is used to drive the upper die 1 to move toward the lower die 2, and the second driving mechanism 21 is used to drive the lower die 2 to move toward the upper die 1. In this embodiment, the first driving mechanism 15 and the second driving mechanism 21 are both hydraulic cylinders.

[0036] like Figure 1 , 2 As shown, the upper mold 1 includes an upper mold plate 111 and an upper cone mold 112, the lower mold 2 includes a lower mold plate 211 and a lower cone mold 212, the sum of the heights of the upper cone mold 112 and the lower cone mold 212 is less than the height of the product, a slide column 3 is provided on the upper mold plate 111, a sliding hole 4 is provided on the upper cone mold 112, the slide column 3 and the sliding hole 4 are slidably matched, when in use, the slide column 3 is inserted into the sliding hole 4, a thrust spring 5 is provided between the upper mold plate 111 and the upper cone mold 112, one end of the thrust spring 5 is connected to the upper mold plate 111 and the other end is connected to the upper cone mold 112, a limiting protrusion 6 for preventing the upper cone mold 112 from being completely disengaged from the slide column 3 is provided on the slide column 3, a buffer gap 7 is provided between the upper cone mold 112 and the upper mold plate 111, and a boss 8 is provided on the upper cone mold 112 and the lower mold plate 211 (refer to Figure 3 As shown in FIG. 1 ), when the conical surfaces of the upper cone die 112 and the lower cone die 212 fit the inner wall of the product, the end surface of the product just contacts the boss 8.

[0037] like Figure 2 , 3 As shown, a positioning hole 9 is provided on the lower cone die 212, and a positioning column 10 matching the positioning hole 9 is provided on the upper cone die 112. The positioning column 10 is connected to the sliding column 3. The central axes of the positioning hole 9 and the positioning column 10 coincide with the central axis of the upper cone die 112 or the lower cone die 212. In order to make the upper cone die 112 have a certain horizontal floating property to facilitate the mutual matching of the upper cone die 112 and the lower cone die 212, an adjustment gap 27 of 1.5~3 mm is provided between the sliding hole 4 and the sliding column.

[0038] like Figure 1 , 2 As shown, in order to prevent the end face of the product from being subjected to greater force, a resistance block 11 is detachably provided at the end of the upper cone die 112 facing the lower cone die 212. The resistance block 11 is threadedly engaged with the upper cone die 112. When in use, the resistance block 11 will resist the end face of the lower cone die 212 to bear part of the force. The pressure on the end face of the product can be adjusted by replacing the resistance blocks 11 of different thicknesses.

[0039] like Figure 4 , 5 As shown, a cooling jacket 22 is fixed on the upper mold plate 111, and the cooling jacket 22 is arranged around the upper cone mold 112. When the conical surfaces of the upper cone mold 112 and the lower cone mold 212 are both in contact with the inner wall of the product, the end of the cooling jacket 22 facing away from the upper mold plate 111 will just be in contact with the end surface of the base 19, and a cooling gap 23 is provided between the cooling jacket 22 and the product, and a plurality of flow channels 16 are provided on the conical surfaces of the upper cone mold 112 and the lower cone mold 212. The flow channels 16 extend from one end of the upper cone mold 112 or the lower cone mold 212 to the other end. The lower mold plate 211 is provided with an inlet 17 for cooling liquid to enter the flow channel 16, and the lower mold plate 211 is provided with a lower outlet 24 for the cooling liquid in the flow channel 16 to flow to the outside of the product, and the upper cone mold 112 is provided with an upper outlet 18 for the cooling liquid in the flow channel 16 to flow out.

[0040] like Figure 4 , 5 As shown, an injection port 25 is provided on the upper mold plate 111, the interior of the sliding column 3 is hollow, the injection port 25 is communicated with the interior of the sliding column 3, and a conducting port 26 is provided on the end surface of the upper cone mold 112 facing the lower cone mold 212, and the conducting port 26 is communicated with the interior of the sliding column 3. When in use, the cooling liquid enters from the injection port 25, then passes through the interior of the sliding column 3, and finally enters from the conducting port 26 between the upper cone mold 112 and the lower cone mold 212, and finally enters the flow channel 16.

[0041] Among them, a demolding rod 13 is connected to the mold frame 12, and a notch 14 for the demolding rod 13 to pass through is provided on the upper mold plate 111. The demolding rod 13 is away from the mold frame 12 end and is opposite to the product end face and is used to contact the product end face. The distance between the end of the demolding rod 13 and the product end face is less than the maximum movement stroke of the upper cone mold 112. In this embodiment, the distance between the end of the demolding rod 13 and the product end face is 2 cm.

[0042] The first step: push the product to the top of the accommodating cavity 20 and make the central axis of the product coincide with the central axis of the lower cone mold 212 .

[0043] The second step: mold closing, first drive the lower mold 2 to move through the second driving mechanism 21 and make the lower cone mold 212 enter the product and fit with the inner wall of the product. At this time, the boss 8 on the lower template 211 will conflict with the lower end surface of the product, and then drive the lower mold 2 to continue to move for a distance until the product is separated from the base 19; then drive the upper mold 1 to move into the product through the first driving mechanism 15. When the boss 8 on the upper cone mold 112 conflicts with the upper end surface of the product, the conical surface of the upper cone mold 112 just fits with the inner wall of the product, and at this time the conflict block 11 just conflicts with the end surface of the lower cone mold 212, and then continue to drive the upper mold 1 to move. At this time, since the lower cone mold 212 is tightly pressed against the upper cone mold 112 through the conflict block 11, the upper cone mold 112 will stop moving, and the upper template 111 continues to move toward the product end. At this time, the thrust spring 5 will be gradually compressed. When the thrust spring 5 is compressed to a certain length, the upper mold 1 is stopped from moving.

[0044] The third step: quenching. At the same time, cooling liquid is injected into the upper mold 1 and the lower mold 2 through the injection port 25 and the inlet 17. In this embodiment, the cooling liquid is cooling oil. At this time, part of the cooling liquid entering from the inlet 17 will enter the cooling gap 23 through the lower outlet 24, and the other part will enter the flow channel 16. The cooling liquid entering from the injection port 25 will enter the slide column 3, and then enter between the upper cone mold 112 and the lower cone mold 212 from the slide column 3, and then flow into the flow channel 16. At this time, the flow channel 16 will be quickly filled, and finally the excess cooling liquid in the flow channel 16 will overflow from the upper outlet 18 into the cooling gap 23, until the inside and outside of the product are completely immersed in the cooling liquid, and the product will be quenched.

[0045] The fourth step is demoulding. The lower mold 2 is driven by the second driving mechanism 21 to move away from the upper mold 1. At this time, the upper cone mold 112 will move with the product and the lower mold 2 under the action of the thrust spring 5. When the product is in contact with the base 19, the lower mold 2 continues to move into the accommodating cavity 20. At this time, the product will collide with the base 19, so that the product is separated from the lower mold 2. At this time, the product and the upper cone mold 112 will stop moving. Then, the upper mold 1 is driven by the first driving mechanism 15 to move away from the lower mold 2. The product and the upper cone mold 112 will move away from the lower mold 2. When the upper end surface of the product contacts the end of the demolding rod 13, the first drive mechanism 15 continues to drive the upper mold 1 to move. At this time, the product will be separated from the upper cone mold 112 under the contact of the demolding rod 13, completing the demolding work. After that, the first drive mechanism 15 and the second drive mechanism 21 continue to drive the upper mold 1 and the lower mold 2 to continue to move until the lower mold 2 completely enters the accommodating cavity 20 and the upper mold 1 is completely removed from the product. Then the product can be removed.

[0046] When the upper die 1 and the lower die 2 move, there are multiple guide rods for the upper die 1 and the lower die 2 to slide, so as to prevent the upper die 1 and the lower die 2 from tilting.

[0047] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing outer ring compression quenching die, comprising an upper die (1) and a lower die (2), wherein the upper die (1) comprises an upper die plate (111) and an upper cone die (112) connected to the upper die plate (111), and the lower die (2) comprises a lower die plate (211) and a lower cone die (212) connected to the lower die plate (211), characterized in that: The upper mold plate (111) is provided with a slide column (3), the upper cone mold (112) is provided with a sliding hole (4), the slide column (3) and the sliding hole (4) are slidably matched, a thrust spring (5) is provided between the upper mold plate (111) and the upper cone mold (112) for making the upper cone mold (112) always have a tendency to move away from the upper mold plate (111), the slide column (3) is provided with a limiting protrusion (6) for preventing the upper cone mold (112) and the slide column (3) from being completely disengaged, the sum of the heights of the upper cone mold (112) and the lower cone mold (212) is less than the height of the product, A buffer gap (7) is provided between the upper cone die (112) and the upper die plate (111); a boss (8) for contacting the end surface of the product is provided on the upper cone die (112) and the lower die plate (211); a contact block (11) for contacting the end surface of the lower cone die (212) is detachably provided on the end of the upper cone die (112) facing the lower cone die (212); a plurality of flow channels (16) are provided on the conical surfaces of the upper cone die (112) and the lower cone die (212); the flow channels (16) extend from one end of the upper cone die (112) or the lower cone die (212) to the other end; The template (211) is provided with an opening (17) for cooling liquid to enter the flow channel (16), the upper cone mold (112) is provided with an upper outlet (18) for cooling liquid in the flow channel (16) to flow out, and further comprises a base (19), the base (19) is provided with a receiving cavity (20), the lower mold (2) is located in the receiving cavity (20), the height of the base (19) is less than the depth of the receiving cavity (20), the bottom of the receiving cavity (20) is provided with a second driving mechanism (21) for driving the lower film (2) to move out of the receiving cavity (20), and the upper template (111) A cooling sleeve (22) is fixed on the upper mold, and the cooling sleeve (22) is arranged around the upper cone mold (112). When the conical surfaces of the upper cone mold (112) and the lower cone mold (212) are in contact with the inner wall of the product, the end of the cooling sleeve (22) facing away from the upper mold plate (111) is in contact with the end surface of the base (19). A cooling gap (23) is arranged between the cooling sleeve (22) and the product. The lower mold plate (211) is provided with a lower outlet (24) for the cooling liquid in the flow channel (16) to flow to the outside of the product. An adjustment gap (27) of 1.5 to 3 mm is arranged between the sliding hole (4) and the sliding column.

2. The bearing outer ring press-molding quenching die according to claim 1, characterized in that: The lower cone die (212) is provided with a positioning hole (9), the upper cone die (112) is provided with a positioning column (10) matched with the positioning hole (9), the positioning column (10) is connected to the sliding column (3), and the central axes of the positioning hole (9) and the positioning column (10) both coincide with the central axis of the upper cone die (112) or the lower cone die (212).

3. The bearing outer ring compression quenching die according to claim 1, characterized in that: The invention also comprises a mould frame (12), wherein a first driving mechanism (15) is arranged on the mould frame (12) for driving the upper mould (1) to move, a demoulding rod (13) is connected to the mould frame (12), and a notch (14) is arranged on the upper mould plate (111) for the demoulding rod (13) to pass through, the end of the demoulding rod (13) facing away from the mould frame (12) is opposite to the end face of the product and is used to contact the end face of the product, and the distance between the end of the demoulding rod (13) and the end face of the product is less than the maximum movement stroke of the upper cone mould (112).

4. The bearing outer ring compression quenching die according to claim 1, characterized in that: The upper mold plate (111) is provided with an injection port (25), the interior of the sliding column (3) is hollow, the injection port (25) is connected to the interior of the sliding column (3), and the end surface of the upper cone mold (112) facing the lower cone mold (212) is provided with a conduction port (26) connected to the interior of the sliding column (3).

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